diff options
Diffstat (limited to 'rpc/rpc-lib/src')
27 files changed, 9114 insertions, 5805 deletions
diff --git a/rpc/rpc-lib/src/Makefile.am b/rpc/rpc-lib/src/Makefile.am index 9e37797bd1a..35c9db07e7f 100644 --- a/rpc/rpc-lib/src/Makefile.am +++ b/rpc/rpc-lib/src/Makefile.am @@ -1,17 +1,29 @@ lib_LTLIBRARIES = libgfrpc.la -libgfrpc_la_LDFLAGS = -module -avoidversion libgfrpc_la_SOURCES = auth-unix.c rpcsvc-auth.c rpcsvc.c auth-null.c \ rpc-transport.c xdr-rpc.c xdr-rpcclnt.c rpc-clnt.c auth-glusterfs.c \ - rpc-common.c -libgfrpc_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la + rpc-drc.c rpc-clnt-ping.c \ + autoscale-threads.c mgmt-pmap.c -noinst_HEADERS = rpcsvc.h rpc-transport.h xdr-common.h xdr-rpc.h xdr-rpcclnt.h \ - rpc-clnt.h rpcsvc-common.h protocol-common.h +EXTRA_DIST = libgfrpc.sym -AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall -D$(GF_HOST_OS)\ - -I$(top_srcdir)/libglusterfs/src -shared -nostartfiles $(GF_CFLAGS) \ +libgfrpc_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la \ + $(top_builddir)/rpc/xdr/src/libgfxdr.la +libgfrpc_la_LDFLAGS = -version-info $(LIBGFRPC_LT_VERSION) $(GF_LDFLAGS) \ + -export-symbols $(top_srcdir)/rpc/rpc-lib/src/libgfrpc.sym + +libgfrpc_la_HEADERS = rpcsvc.h rpc-transport.h xdr-common.h xdr-rpc.h xdr-rpcclnt.h \ + rpc-clnt.h rpcsvc-common.h protocol-common.h rpc-drc.h rpc-clnt-ping.h \ + rpc-lib-messages.h + +libgfrpc_ladir = $(includedir)/glusterfs/rpc + +AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \ -I$(top_srcdir)/rpc/xdr/src \ - -DRPC_TRANSPORTDIR=\"$(libdir)/glusterfs/$(PACKAGE_VERSION)/rpc-transport\" + -I$(top_builddir)/rpc/xdr/src \ + -DRPC_TRANSPORTDIR=\"$(libdir)/glusterfs/$(PACKAGE_VERSION)/rpc-transport\" \ + -I$(top_srcdir)/contrib/rbtree + +AM_CFLAGS = -Wall $(GF_CFLAGS) CLEANFILES = *~ diff --git a/rpc/rpc-lib/src/auth-glusterfs.c b/rpc/rpc-lib/src/auth-glusterfs.c index 459cad87791..69a96f7512f 100644 --- a/rpc/rpc-lib/src/auth-glusterfs.c +++ b/rpc/rpc-lib/src/auth-glusterfs.c @@ -1,200 +1,386 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. +#include "rpcsvc.h" +#include <glusterfs/dict.h> +#include "xdr-rpc.h" +#include "xdr-common.h" +#include "rpc-common-xdr.h" +#include "glusterfs4-xdr.h" - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. -*/ +/* V1 */ +ssize_t +xdr_to_glusterfs_auth(char *buf, struct auth_glusterfs_parms *req) +{ + XDR xdr; + ssize_t ret = -1; + if ((!buf) || (!req)) + return -1; -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif + xdrmem_create(&xdr, buf, sizeof(struct auth_glusterfs_parms), XDR_DECODE); + if (!xdr_auth_glusterfs_parms(&xdr, req)) { + gf_log("", GF_LOG_WARNING, "failed to decode glusterfs parameters"); + ret = -1; + goto ret; + } -#include "rpcsvc.h" -#include "list.h" -#include "dict.h" -#include "xdr-rpc.h" -#include "xdr-common.h" + ret = (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base)); +ret: + return ret; +} +int +auth_glusterfs_request_init(rpcsvc_request_t *req, void *priv) +{ + return 0; +} + +int +auth_glusterfs_authenticate(rpcsvc_request_t *req, void *priv) +{ + struct auth_glusterfs_parms au = { + 0, + }; + + int ret = RPCSVC_AUTH_REJECT; + int j = 0; + int i = 0; + int gidcount = 0; + + if (!req) + return ret; + + ret = xdr_to_glusterfs_auth(req->cred.authdata, &au); + if (ret == -1) { + gf_log("", GF_LOG_WARNING, "failed to decode glusterfs credentials"); + ret = RPCSVC_AUTH_REJECT; + goto err; + } -bool_t -xdr_auth_glusterfs_parms (XDR *xdrs, auth_glusterfs_parms *objp) + req->pid = au.pid; + req->uid = au.uid; + req->gid = au.gid; + req->lk_owner.len = 8; + { + for (i = 0; i < req->lk_owner.len; i++, j += 8) + req->lk_owner.data[i] = (char)((au.lk_owner >> j) & 0xff); + } + req->auxgidcount = au.ngrps; + + if (req->auxgidcount > 16) { + gf_log("", GF_LOG_WARNING, + "more than 16 aux gids found, failing authentication"); + ret = RPCSVC_AUTH_REJECT; + goto err; + } + + if (req->auxgidcount > SMALL_GROUP_COUNT) { + req->auxgidlarge = GF_CALLOC(req->auxgidcount, sizeof(req->auxgids[0]), + gf_common_mt_auxgids); + req->auxgids = req->auxgidlarge; + } else { + req->auxgids = req->auxgidsmall; + } + + if (!req->auxgids) { + gf_log("auth-glusterfs", GF_LOG_WARNING, "cannot allocate gid list"); + ret = RPCSVC_AUTH_REJECT; + goto err; + } + + for (gidcount = 0; gidcount < au.ngrps; ++gidcount) + req->auxgids[gidcount] = au.groups[gidcount]; + + gf_log(GF_RPCSVC, GF_LOG_TRACE, + "Auth Info: pid: %u, uid: %d" + ", gid: %d, owner: %s", + req->pid, req->uid, req->gid, lkowner_utoa(&req->lk_owner)); + ret = RPCSVC_AUTH_ACCEPT; +err: + return ret; +} + +rpcsvc_auth_ops_t auth_glusterfs_ops = { + .transport_init = NULL, + .request_init = auth_glusterfs_request_init, + .authenticate = auth_glusterfs_authenticate}; + +rpcsvc_auth_t rpcsvc_auth_glusterfs = {.authname = "AUTH_GLUSTERFS", + .authnum = AUTH_GLUSTERFS, + .authops = &auth_glusterfs_ops, + .authprivate = NULL}; + +rpcsvc_auth_t * +rpcsvc_auth_glusterfs_init(rpcsvc_t *svc, dict_t *options) { - register int32_t *buf; - - int i; - - if (xdrs->x_op == XDR_ENCODE) { - if (!xdr_u_quad_t (xdrs, &objp->lk_owner)) - return FALSE; - buf = XDR_INLINE (xdrs, (4 + 16 )* BYTES_PER_XDR_UNIT); - if (buf == NULL) { - if (!xdr_u_int (xdrs, &objp->pid)) - return FALSE; - if (!xdr_u_int (xdrs, &objp->uid)) - return FALSE; - if (!xdr_u_int (xdrs, &objp->gid)) - return FALSE; - if (!xdr_u_int (xdrs, &objp->ngrps)) - return FALSE; - if (!xdr_vector (xdrs, (char *)objp->groups, 16, - sizeof (u_int), (xdrproc_t) xdr_u_int)) - return FALSE; - } else { - IXDR_PUT_U_LONG(buf, objp->pid); - IXDR_PUT_U_LONG(buf, objp->uid); - IXDR_PUT_U_LONG(buf, objp->gid); - IXDR_PUT_U_LONG(buf, objp->ngrps); - { - register u_int *genp; - - for (i = 0, genp = objp->groups; - i < 16; ++i) { - IXDR_PUT_U_LONG(buf, *genp++); - } - } - } - return TRUE; - } else if (xdrs->x_op == XDR_DECODE) { - if (!xdr_u_quad_t (xdrs, &objp->lk_owner)) - return FALSE; - buf = XDR_INLINE (xdrs, (4 + 16 )* BYTES_PER_XDR_UNIT); - if (buf == NULL) { - if (!xdr_u_int (xdrs, &objp->pid)) - return FALSE; - if (!xdr_u_int (xdrs, &objp->uid)) - return FALSE; - if (!xdr_u_int (xdrs, &objp->gid)) - return FALSE; - if (!xdr_u_int (xdrs, &objp->ngrps)) - return FALSE; - if (!xdr_vector (xdrs, (char *)objp->groups, 16, - sizeof (u_int), (xdrproc_t) xdr_u_int)) - return FALSE; - } else { - objp->pid = IXDR_GET_U_LONG(buf); - objp->uid = IXDR_GET_U_LONG(buf); - objp->gid = IXDR_GET_U_LONG(buf); - objp->ngrps = IXDR_GET_U_LONG(buf); - { - register u_int *genp; - - for (i = 0, genp = objp->groups; - i < 16; ++i) { - *genp++ = IXDR_GET_U_LONG(buf); - } - } - } - return TRUE; - } - - if (!xdr_u_quad_t (xdrs, &objp->lk_owner)) - return FALSE; - if (!xdr_u_int (xdrs, &objp->pid)) - return FALSE; - if (!xdr_u_int (xdrs, &objp->uid)) - return FALSE; - if (!xdr_u_int (xdrs, &objp->gid)) - return FALSE; - if (!xdr_u_int (xdrs, &objp->ngrps)) - return FALSE; - if (!xdr_vector (xdrs, (char *)objp->groups, 16, - sizeof (u_int), (xdrproc_t) xdr_u_int)) - return FALSE; - return TRUE; + return &rpcsvc_auth_glusterfs; } +/* V2 */ ssize_t -xdr_to_glusterfs_auth (char *buf, struct auth_glusterfs_parms *req) +xdr_to_glusterfs_auth_v2(char *buf, struct auth_glusterfs_parms_v2 *req) { - XDR xdr; - ssize_t ret = -1; + XDR xdr; + ssize_t ret = -1; - if ((!buf) || (!req)) - return -1; + if ((!buf) || (!req)) + return -1; - xdrmem_create (&xdr, buf, sizeof (struct auth_glusterfs_parms), - XDR_DECODE); - if (!xdr_auth_glusterfs_parms (&xdr, req)) { - ret = -1; - goto ret; - } + xdrmem_create(&xdr, buf, GF_MAX_AUTH_BYTES, XDR_DECODE); + if (!xdr_auth_glusterfs_parms_v2(&xdr, req)) { + gf_log("", GF_LOG_WARNING, "failed to decode glusterfs v2 parameters"); + ret = -1; + goto ret; + } - ret = (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base)); + ret = (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base)); ret: + return ret; +} +int +auth_glusterfs_v2_request_init(rpcsvc_request_t *req, void *priv) +{ + return 0; +} + +int +auth_glusterfs_v2_authenticate(rpcsvc_request_t *req, void *priv) +{ + struct auth_glusterfs_parms_v2 au = { + 0, + }; + int ret = RPCSVC_AUTH_REJECT; + int i = 0; + int max_groups = 0; + int max_lk_owner_len = 0; + + if (!req) return ret; + ret = xdr_to_glusterfs_auth_v2(req->cred.authdata, &au); + if (ret == -1) { + gf_log("", GF_LOG_WARNING, "failed to decode glusterfs credentials"); + ret = RPCSVC_AUTH_REJECT; + goto err; + } + + req->pid = au.pid; + req->uid = au.uid; + req->gid = au.gid; + req->lk_owner.len = au.lk_owner.lk_owner_len; + req->auxgidcount = au.groups.groups_len; + + /* the number of groups and size of lk_owner depend on each other */ + max_groups = GF_AUTH_GLUSTERFS_MAX_GROUPS(req->lk_owner.len, + AUTH_GLUSTERFS_v2); + max_lk_owner_len = GF_AUTH_GLUSTERFS_MAX_LKOWNER(req->auxgidcount, + AUTH_GLUSTERFS_v2); + + if (req->auxgidcount > max_groups) { + gf_log("", GF_LOG_WARNING, + "more than max aux gids found (%d) , truncating it " + "to %d and continuing", + au.groups.groups_len, max_groups); + req->auxgidcount = max_groups; + } + + if (req->lk_owner.len > max_lk_owner_len) { + gf_log("", GF_LOG_WARNING, + "lkowner field to big (%d), depends on the number of " + "groups (%d), failing authentication", + req->lk_owner.len, req->auxgidcount); + ret = RPCSVC_AUTH_REJECT; + goto err; + } + + if (req->auxgidcount > SMALL_GROUP_COUNT) { + req->auxgidlarge = GF_CALLOC(req->auxgidcount, sizeof(req->auxgids[0]), + gf_common_mt_auxgids); + req->auxgids = req->auxgidlarge; + } else { + req->auxgids = req->auxgidsmall; + } + + if (!req->auxgids) { + gf_log("auth-glusterfs-v2", GF_LOG_WARNING, "cannot allocate gid list"); + ret = RPCSVC_AUTH_REJECT; + goto err; + } + + for (i = 0; i < req->auxgidcount; ++i) + req->auxgids[i] = au.groups.groups_val[i]; + + for (i = 0; i < au.lk_owner.lk_owner_len; ++i) + req->lk_owner.data[i] = au.lk_owner.lk_owner_val[i]; + + gf_log(GF_RPCSVC, GF_LOG_TRACE, + "Auth Info: pid: %u, uid: %d" + ", gid: %d, owner: %s", + req->pid, req->uid, req->gid, lkowner_utoa(&req->lk_owner)); + ret = RPCSVC_AUTH_ACCEPT; +err: + /* TODO: instead use alloca() for these variables */ + free(au.groups.groups_val); + free(au.lk_owner.lk_owner_val); + + return ret; } -int -auth_glusterfs_request_init (rpcsvc_request_t *req, void *priv) + +rpcsvc_auth_ops_t auth_glusterfs_ops_v2 = { + .transport_init = NULL, + .request_init = auth_glusterfs_v2_request_init, + .authenticate = auth_glusterfs_v2_authenticate}; + +rpcsvc_auth_t rpcsvc_auth_glusterfs_v2 = {.authname = "AUTH_GLUSTERFS-v2", + .authnum = AUTH_GLUSTERFS_v2, + .authops = &auth_glusterfs_ops_v2, + .authprivate = NULL}; + +rpcsvc_auth_t * +rpcsvc_auth_glusterfs_v2_init(rpcsvc_t *svc, dict_t *options) { - if (!req) - return -1; - memset (req->verf.authdata, 0, RPCSVC_MAX_AUTH_BYTES); - req->verf.datalen = 0; - req->verf.flavour = AUTH_NULL; + return &rpcsvc_auth_glusterfs_v2; +} + +/* V3 */ + +ssize_t +xdr_to_glusterfs_auth_v3(char *buf, struct auth_glusterfs_params_v3 *req) +{ + XDR xdr; + ssize_t ret = -1; + + if ((!buf) || (!req)) + return -1; + + xdrmem_create(&xdr, buf, GF_MAX_AUTH_BYTES, XDR_DECODE); + if (!xdr_auth_glusterfs_params_v3(&xdr, req)) { + gf_log("", GF_LOG_WARNING, "failed to decode glusterfs v3 parameters"); + ret = -1; + goto ret; + } + + ret = (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base)); +ret: + return ret; +} - return 0; +int +auth_glusterfs_v3_request_init(rpcsvc_request_t *req, void *priv) +{ + return 0; } -int auth_glusterfs_authenticate (rpcsvc_request_t *req, void *priv) +int +auth_glusterfs_v3_authenticate(rpcsvc_request_t *req, void *priv) { - int ret = RPCSVC_AUTH_REJECT; - struct auth_glusterfs_parms au = {0,}; - - if (!req) - return ret; - - ret = xdr_to_glusterfs_auth (req->cred.authdata, &au); - if (ret == -1) { - ret = RPCSVC_AUTH_REJECT; - goto err; - } - - req->pid = au.pid; - req->uid = au.uid; - req->gid = au.gid; - req->lk_owner = au.lk_owner; - req->auxgidcount = au.ngrps; - - gf_log (GF_RPCSVC, GF_LOG_TRACE, "Auth Info: pid: %u, uid: %d" - ", gid: %d, owner: %"PRId64, - req->pid, req->uid, req->gid, req->lk_owner); - ret = RPCSVC_AUTH_ACCEPT; -err: + struct auth_glusterfs_params_v3 au = { + 0, + }; + int ret = RPCSVC_AUTH_REJECT; + int i = 0; + int max_groups = 0; + int max_lk_owner_len = 0; + + if (!req) return ret; -} -rpcsvc_auth_ops_t auth_glusterfs_ops = { - .transport_init = NULL, - .request_init = auth_glusterfs_request_init, - .authenticate = auth_glusterfs_authenticate -}; + ret = xdr_to_glusterfs_auth_v3(req->cred.authdata, &au); + if (ret == -1) { + gf_log("", GF_LOG_WARNING, "failed to decode glusterfs credentials"); + ret = RPCSVC_AUTH_REJECT; + goto err; + } + + req->pid = au.pid; + req->uid = au.uid; + req->gid = au.gid; + req->lk_owner.len = au.lk_owner.lk_owner_len; + req->auxgidcount = au.groups.groups_len; + + /* the number of groups and size of lk_owner depend on each other */ + max_groups = GF_AUTH_GLUSTERFS_MAX_GROUPS(req->lk_owner.len, + AUTH_GLUSTERFS_v3); + max_lk_owner_len = GF_AUTH_GLUSTERFS_MAX_LKOWNER(req->auxgidcount, + AUTH_GLUSTERFS_v3); + + if (req->auxgidcount > max_groups) { + gf_log("", GF_LOG_WARNING, + "more than max aux gids found (%d) , truncating it " + "to %d and continuing", + au.groups.groups_len, max_groups); + req->auxgidcount = max_groups; + } + + if (req->lk_owner.len > max_lk_owner_len) { + gf_log("", GF_LOG_WARNING, + "lkowner field to big (%d), depends on the number of " + "groups (%d), failing authentication", + req->lk_owner.len, req->auxgidcount); + ret = RPCSVC_AUTH_REJECT; + goto err; + } + + if (req->auxgidcount > SMALL_GROUP_COUNT) { + req->auxgidlarge = GF_CALLOC(req->auxgidcount, sizeof(req->auxgids[0]), + gf_common_mt_auxgids); + req->auxgids = req->auxgidlarge; + } else { + req->auxgids = req->auxgidsmall; + } + + if (!req->auxgids) { + gf_log("auth-glusterfs-v2", GF_LOG_WARNING, "cannot allocate gid list"); + ret = RPCSVC_AUTH_REJECT; + goto err; + } + + for (i = 0; i < req->auxgidcount; ++i) + req->auxgids[i] = au.groups.groups_val[i]; + + for (i = 0; i < au.lk_owner.lk_owner_len; ++i) + req->lk_owner.data[i] = au.lk_owner.lk_owner_val[i]; + + /* All new things, starting glusterfs-4.0.0 */ + req->flags = au.flags; + req->ctime.tv_sec = au.ctime_sec; + req->ctime.tv_nsec = au.ctime_nsec; + + gf_log(GF_RPCSVC, GF_LOG_TRACE, + "Auth Info: pid: %u, uid: %d" + ", gid: %d, owner: %s, flags: %d", + req->pid, req->uid, req->gid, lkowner_utoa(&req->lk_owner), + req->flags); + ret = RPCSVC_AUTH_ACCEPT; +err: + /* TODO: instead use alloca() for these variables */ + free(au.groups.groups_val); + free(au.lk_owner.lk_owner_val); + + return ret; +} -rpcsvc_auth_t rpcsvc_auth_glusterfs = { - .authname = "AUTH_GLUSTERFS", - .authnum = AUTH_GLUSTERFS, - .authops = &auth_glusterfs_ops, - .authprivate = NULL -}; +rpcsvc_auth_ops_t auth_glusterfs_ops_v3 = { + .transport_init = NULL, + .request_init = auth_glusterfs_v3_request_init, + .authenticate = auth_glusterfs_v3_authenticate}; +rpcsvc_auth_t rpcsvc_auth_glusterfs_v3 = {.authname = "AUTH_GLUSTERFS-v3", + .authnum = AUTH_GLUSTERFS_v3, + .authops = &auth_glusterfs_ops_v3, + .authprivate = NULL}; rpcsvc_auth_t * -rpcsvc_auth_glusterfs_init (rpcsvc_t *svc, dict_t *options) +rpcsvc_auth_glusterfs_v3_init(rpcsvc_t *svc, dict_t *options) { - return &rpcsvc_auth_glusterfs; + return &rpcsvc_auth_glusterfs_v3; } diff --git a/rpc/rpc-lib/src/auth-null.c b/rpc/rpc-lib/src/auth-null.c index 20dd7e77c8b..6d059b9da50 100644 --- a/rpc/rpc-lib/src/auth-null.c +++ b/rpc/rpc-lib/src/auth-null.c @@ -1,70 +1,40 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ - -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - #include "rpcsvc.h" -#include "list.h" -#include "dict.h" - +#include <glusterfs/dict.h> int -auth_null_request_init (rpcsvc_request_t *req, void *priv) +auth_null_request_init(rpcsvc_request_t *req, void *priv) { - if (!req) - return -1; - - memset (req->cred.authdata, 0, RPCSVC_MAX_AUTH_BYTES); - req->cred.datalen = 0; - - memset (req->verf.authdata, 0, RPCSVC_MAX_AUTH_BYTES); - req->verf.datalen = 0; - - return 0; + return 0; } -int auth_null_authenticate (rpcsvc_request_t *req, void *priv) +int +auth_null_authenticate(rpcsvc_request_t *req, void *priv) { - /* Always succeed. */ - return RPCSVC_AUTH_ACCEPT; + /* Always succeed. */ + return RPCSVC_AUTH_ACCEPT; } -rpcsvc_auth_ops_t auth_null_ops = { - .transport_init = NULL, - .request_init = auth_null_request_init, - .authenticate = auth_null_authenticate -}; - -rpcsvc_auth_t rpcsvc_auth_null = { - .authname = "AUTH_NULL", - .authnum = AUTH_NULL, - .authops = &auth_null_ops, - .authprivate = NULL -}; +rpcsvc_auth_ops_t auth_null_ops = {.transport_init = NULL, + .request_init = auth_null_request_init, + .authenticate = auth_null_authenticate}; +rpcsvc_auth_t rpcsvc_auth_null = {.authname = "AUTH_NULL", + .authnum = AUTH_NULL, + .authops = &auth_null_ops, + .authprivate = NULL}; rpcsvc_auth_t * -rpcsvc_auth_null_init (rpcsvc_t *svc, dict_t *options) +rpcsvc_auth_null_init(rpcsvc_t *svc, dict_t *options) { - return &rpcsvc_auth_null; + return &rpcsvc_auth_null; } diff --git a/rpc/rpc-lib/src/auth-unix.c b/rpc/rpc-lib/src/auth-unix.c index 30b395bd4fa..61d475a5e84 100644 --- a/rpc/rpc-lib/src/auth-unix.c +++ b/rpc/rpc-lib/src/auth-unix.c @@ -1,90 +1,66 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ - - -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - #include "rpcsvc.h" -#include "list.h" -#include "dict.h" +#include <glusterfs/dict.h> #include "xdr-rpc.h" - int -auth_unix_request_init (rpcsvc_request_t *req, void *priv) +auth_unix_request_init(rpcsvc_request_t *req, void *priv) { - if (!req) - return -1; - memset (req->verf.authdata, 0, RPCSVC_MAX_AUTH_BYTES); - req->verf.datalen = 0; - req->verf.flavour = AUTH_NULL; - - return 0; + return 0; } -int auth_unix_authenticate (rpcsvc_request_t *req, void *priv) +int +auth_unix_authenticate(rpcsvc_request_t *req, void *priv) { - int ret = RPCSVC_AUTH_REJECT; - struct authunix_parms aup; - char machname[MAX_MACHINE_NAME]; - - if (!req) - return ret; - - ret = xdr_to_auth_unix_cred (req->cred.authdata, req->cred.datalen, - &aup, machname, req->auxgids); - if (ret == -1) { - ret = RPCSVC_AUTH_REJECT; - goto err; - } + int ret = RPCSVC_AUTH_REJECT; + struct authunix_parms aup; + char machname[MAX_MACHINE_NAME]; - req->uid = aup.aup_uid; - req->gid = aup.aup_gid; - req->auxgidcount = aup.aup_len; + if (!req) + return ret; - gf_log (GF_RPCSVC, GF_LOG_TRACE, "Auth Info: machine name: %s, uid: %d" - ", gid: %d", machname, req->uid, req->gid); - ret = RPCSVC_AUTH_ACCEPT; + req->auxgids = req->auxgidsmall; + ret = xdr_to_auth_unix_cred(req->cred.authdata, req->cred.datalen, &aup, + machname, req->auxgids); + if (ret == -1) { + gf_log("", GF_LOG_WARNING, "failed to decode unix credentials"); + ret = RPCSVC_AUTH_REJECT; + goto err; + } + + req->uid = aup.aup_uid; + req->gid = aup.aup_gid; + req->auxgidcount = aup.aup_len; + + gf_log(GF_RPCSVC, GF_LOG_TRACE, + "Auth Info: machine name: %s, uid: %d" + ", gid: %d", + machname, req->uid, req->gid); + ret = RPCSVC_AUTH_ACCEPT; err: - return ret; + return ret; } -rpcsvc_auth_ops_t auth_unix_ops = { - .transport_init = NULL, - .request_init = auth_unix_request_init, - .authenticate = auth_unix_authenticate -}; - -rpcsvc_auth_t rpcsvc_auth_unix = { - .authname = "AUTH_UNIX", - .authnum = AUTH_UNIX, - .authops = &auth_unix_ops, - .authprivate = NULL -}; +rpcsvc_auth_ops_t auth_unix_ops = {.transport_init = NULL, + .request_init = auth_unix_request_init, + .authenticate = auth_unix_authenticate}; +rpcsvc_auth_t rpcsvc_auth_unix = {.authname = "AUTH_UNIX", + .authnum = AUTH_UNIX, + .authops = &auth_unix_ops, + .authprivate = NULL}; rpcsvc_auth_t * -rpcsvc_auth_unix_init (rpcsvc_t *svc, dict_t *options) +rpcsvc_auth_unix_init(rpcsvc_t *svc, dict_t *options) { - return &rpcsvc_auth_unix; + return &rpcsvc_auth_unix; } diff --git a/rpc/rpc-lib/src/autoscale-threads.c b/rpc/rpc-lib/src/autoscale-threads.c new file mode 100644 index 00000000000..a954ae7a27a --- /dev/null +++ b/rpc/rpc-lib/src/autoscale-threads.c @@ -0,0 +1,22 @@ +/* + Copyright (c) 2018 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + +#include <glusterfs/gf-event.h> +#include "rpcsvc.h" + +void +rpcsvc_autoscale_threads(glusterfs_ctx_t *ctx, rpcsvc_t *rpc, int incr) +{ + struct event_pool *pool = ctx->event_pool; + int thread_count = pool->eventthreadcount; + + pool->auto_thread_count += incr; + (void)gf_event_reconfigure_threads(pool, thread_count + incr); +} diff --git a/rpc/rpc-lib/src/libgfrpc.sym b/rpc/rpc-lib/src/libgfrpc.sym new file mode 100644 index 00000000000..e026d80259b --- /dev/null +++ b/rpc/rpc-lib/src/libgfrpc.sym @@ -0,0 +1,68 @@ +is_rpc_clnt_disconnected +rpcclnt_cbk_program_register +rpc_clnt_cleanup_and_start +rpc_clnt_connection_cleanup +rpc_clnt_disable +rpc_clnt_new +rpc_clnt_reconfig +rpc_clnt_reconnect +rpc_clnt_reconnect_cleanup +rpc_clnt_ref +rpc_clnt_register_notify +rpc_clnt_start +rpc_clnt_submit +rpc_clnt_unref +rpc_reply_to_xdr +rpcsvc_auth_array +rpcsvc_auth_check +rpcsvc_auth_reconf +rpcsvc_auth_unix_auxgids +rpcsvc_callback_submit +rpcsvc_create_listener +rpcsvc_create_listeners +rpcsvc_drc_init +rpcsvc_drc_priv +rpcsvc_drc_reconfigure +rpcsvc_get_program_vector_sizer +rpcsvc_init +rpcsvc_destroy +rpcsvc_init_options +rpcsvc_listener_destroy +rpcsvc_program_register +rpcsvc_program_register_portmap +rpcsvc_program_register_rpcbind6 +rpcsvc_program_unregister +rpcsvc_program_unregister_portmap +rpcsvc_program_unregister_rpcbind6 +rpcsvc_reconfigure_options +rpcsvc_register_notify +rpcsvc_register_portmap_enabled +rpcsvc_request_submit +rpcsvc_set_outstanding_rpc_limit +rpcsvc_set_throttle_on +rpcsvc_submit_generic +rpcsvc_submit_message +rpcsvc_transport_peeraddr +rpcsvc_transport_peername +rpcsvc_transport_privport_check +rpcsvc_transport_unix_options_build +rpcsvc_transport_volume_allowed +rpcsvc_transport_connect +rpcsvc_transport_getpeeraddr +rpcsvc_unregister_notify +rpcsvc_volume_allowed +rpc_transport_count +rpc_transport_connect +rpc_transport_disconnect +rpc_transport_get_peeraddr +rpc_transport_inet_options_build +rpc_transport_keepalive_options_set +rpc_transport_notify +rpc_transport_pollin_alloc +rpc_transport_pollin_destroy +rpc_transport_ref +rpc_transport_unix_options_build +rpc_transport_unref +rpc_clnt_mgmt_pmap_signout +rpcsvc_autoscale_threads +rpcsvc_statedump diff --git a/rpc/rpc-lib/src/mgmt-pmap.c b/rpc/rpc-lib/src/mgmt-pmap.c new file mode 100644 index 00000000000..25a7148e5a3 --- /dev/null +++ b/rpc/rpc-lib/src/mgmt-pmap.c @@ -0,0 +1,147 @@ +/* + Copyright (c) 2018 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + +#include "portmap-xdr.h" +#include "protocol-common.h" +#include "rpc-clnt.h" +#include "xdr-generic.h" + +/* Defining a minimal RPC client program for portmap signout + */ +char *clnt_pmap_signout_procs[GF_PMAP_MAXVALUE] = { + [GF_PMAP_SIGNOUT] = "SIGNOUT", +}; + +rpc_clnt_prog_t clnt_pmap_signout_prog = { + .progname = "Gluster Portmap", + .prognum = GLUSTER_PMAP_PROGRAM, + .progver = GLUSTER_PMAP_VERSION, + .procnames = clnt_pmap_signout_procs, +}; + +static int +mgmt_pmap_signout_cbk(struct rpc_req *req, struct iovec *iov, int count, + void *myframe) +{ + pmap_signout_rsp rsp = { + 0, + }; + int ret = 0; + call_frame_t *frame = NULL; + + frame = myframe; + if (-1 == req->rpc_status) { + rsp.op_ret = -1; + rsp.op_errno = EINVAL; + goto out; + } + + ret = xdr_to_generic(*iov, &rsp, (xdrproc_t)xdr_pmap_signout_rsp); + if (ret < 0) { + gf_log(THIS->name, GF_LOG_ERROR, "XDR decoding failed"); + rsp.op_ret = -1; + rsp.op_errno = EINVAL; + goto out; + } + + if (-1 == rsp.op_ret) { + gf_log(THIS->name, GF_LOG_ERROR, + "failed to register the port with glusterd"); + goto out; + } +out: + if (frame) { + STACK_DESTROY(frame->root); + } + + return 0; +} + +int +rpc_clnt_mgmt_pmap_signout(glusterfs_ctx_t *ctx, char *brickname) +{ + int ret = 0; + pmap_signout_req req = { + 0, + }; + call_frame_t *frame = NULL; + cmd_args_t *cmd_args = NULL; + char brick_name[PATH_MAX] = { + 0, + }; + struct iovec iov = { + 0, + }; + struct iobuf *iobuf = NULL; + struct iobref *iobref = NULL; + ssize_t xdr_size = 0; + + frame = create_frame(THIS, ctx->pool); + cmd_args = &ctx->cmd_args; + + if (!cmd_args->brick_port && (!cmd_args->brick_name || !brickname)) { + gf_log("fsd-mgmt", GF_LOG_DEBUG, + "portmapper signout arguments not given"); + goto out; + } + + if (cmd_args->volfile_server_transport && + !strcmp(cmd_args->volfile_server_transport, "rdma")) { + snprintf(brick_name, sizeof(brick_name), "%s.rdma", + cmd_args->brick_name); + req.brick = brick_name; + } else { + if (brickname) + req.brick = brickname; + else + req.brick = cmd_args->brick_name; + } + + req.port = cmd_args->brick_port; + req.rdma_port = cmd_args->brick_port2; + + /* mgmt_submit_request is not available in libglusterfs. + * Need to serialize and submit manually. + */ + iobref = iobref_new(); + if (!iobref) { + goto out; + } + + xdr_size = xdr_sizeof((xdrproc_t)xdr_pmap_signout_req, &req); + iobuf = iobuf_get2(ctx->iobuf_pool, xdr_size); + if (!iobuf) { + goto out; + }; + + iobref_add(iobref, iobuf); + + iov.iov_base = iobuf->ptr; + iov.iov_len = iobuf_pagesize(iobuf); + + /* Create the xdr payload */ + ret = xdr_serialize_generic(iov, &req, (xdrproc_t)xdr_pmap_signout_req); + if (ret == -1) { + gf_log(THIS->name, GF_LOG_WARNING, "failed to create XDR payload"); + goto out; + } + iov.iov_len = ret; + + ret = rpc_clnt_submit(ctx->mgmt, &clnt_pmap_signout_prog, GF_PMAP_SIGNOUT, + mgmt_pmap_signout_cbk, &iov, 1, NULL, 0, iobref, + frame, NULL, 0, NULL, 0, NULL); +out: + if (iobref) + iobref_unref(iobref); + + if (iobuf) + iobuf_unref(iobuf); + return ret; +} diff --git a/rpc/rpc-lib/src/protocol-common.h b/rpc/rpc-lib/src/protocol-common.h index 8f79a03a465..0cb5862e9a9 100644 --- a/rpc/rpc-lib/src/protocol-common.h +++ b/rpc/rpc-lib/src/protocol-common.h @@ -1,178 +1,382 @@ /* - Copyright (c) 2007-2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ #ifndef _PROTOCOL_COMMON_H #define _PROTOCOL_COMMON_H enum gf_fop_procnum { - GFS3_OP_NULL, /* 0 */ - GFS3_OP_STAT, - GFS3_OP_READLINK, - GFS3_OP_MKNOD, - GFS3_OP_MKDIR, - GFS3_OP_UNLINK, - GFS3_OP_RMDIR, - GFS3_OP_SYMLINK, - GFS3_OP_RENAME, - GFS3_OP_LINK, - GFS3_OP_TRUNCATE, - GFS3_OP_OPEN, - GFS3_OP_READ, - GFS3_OP_WRITE, - GFS3_OP_STATFS, - GFS3_OP_FLUSH, - GFS3_OP_FSYNC, - GFS3_OP_SETXATTR, - GFS3_OP_GETXATTR, - GFS3_OP_REMOVEXATTR, - GFS3_OP_OPENDIR, - GFS3_OP_FSYNCDIR, - GFS3_OP_ACCESS, - GFS3_OP_CREATE, - GFS3_OP_FTRUNCATE, - GFS3_OP_FSTAT, - GFS3_OP_LK, - GFS3_OP_LOOKUP, - GFS3_OP_READDIR, - GFS3_OP_INODELK, - GFS3_OP_FINODELK, - GFS3_OP_ENTRYLK, - GFS3_OP_FENTRYLK, - GFS3_OP_XATTROP, - GFS3_OP_FXATTROP, - GFS3_OP_FGETXATTR, - GFS3_OP_FSETXATTR, - GFS3_OP_RCHECKSUM, - GFS3_OP_SETATTR, - GFS3_OP_FSETATTR, - GFS3_OP_READDIRP, - GFS3_OP_RELEASE, - GFS3_OP_RELEASEDIR, - GFS3_OP_MAXVALUE, -} ; + GFS3_OP_NULL, /* 0 */ + GFS3_OP_STAT, + GFS3_OP_READLINK, + GFS3_OP_MKNOD, + GFS3_OP_MKDIR, + GFS3_OP_UNLINK, + GFS3_OP_RMDIR, + GFS3_OP_SYMLINK, + GFS3_OP_RENAME, + GFS3_OP_LINK, + GFS3_OP_TRUNCATE, + GFS3_OP_OPEN, + GFS3_OP_READ, + GFS3_OP_WRITE, + GFS3_OP_STATFS, + GFS3_OP_FLUSH, + GFS3_OP_FSYNC, + GFS3_OP_SETXATTR, + GFS3_OP_GETXATTR, + GFS3_OP_REMOVEXATTR, + GFS3_OP_OPENDIR, + GFS3_OP_FSYNCDIR, + GFS3_OP_ACCESS, + GFS3_OP_CREATE, + GFS3_OP_FTRUNCATE, + GFS3_OP_FSTAT, + GFS3_OP_LK, + GFS3_OP_LOOKUP, + GFS3_OP_READDIR, + GFS3_OP_INODELK, + GFS3_OP_FINODELK, + GFS3_OP_ENTRYLK, + GFS3_OP_FENTRYLK, + GFS3_OP_XATTROP, + GFS3_OP_FXATTROP, + GFS3_OP_FGETXATTR, + GFS3_OP_FSETXATTR, + GFS3_OP_RCHECKSUM, + GFS3_OP_SETATTR, + GFS3_OP_FSETATTR, + GFS3_OP_READDIRP, + GFS3_OP_RELEASE, + GFS3_OP_RELEASEDIR, + GFS3_OP_FREMOVEXATTR, + GFS3_OP_FALLOCATE, + GFS3_OP_DISCARD, + GFS3_OP_ZEROFILL, + GFS3_OP_IPC, + GFS3_OP_SEEK, + GFS3_OP_COMPOUND, + GFS3_OP_LEASE, + GFS3_OP_GETACTIVELK, + GFS3_OP_SETACTIVELK, + GFS3_OP_ICREATE, + GFS3_OP_NAMELINK, + GFS3_OP_PUT, + GFS3_OP_COPY_FILE_RANGE, + GFS3_OP_MAXVALUE, +}; enum gf_handshake_procnum { - GF_HNDSK_NULL, - GF_HNDSK_SETVOLUME, - GF_HNDSK_GETSPEC, - GF_HNDSK_PING, - GF_HNDSK_MAXVALUE, -}; - -enum gf_mgmt_procnum_ { - GD_MGMT_NULL, /* 0 */ - GD_MGMT_PROBE_QUERY, - GD_MGMT_FRIEND_ADD, - GD_MGMT_CLUSTER_LOCK, - GD_MGMT_CLUSTER_UNLOCK, - GD_MGMT_STAGE_OP, - GD_MGMT_COMMIT_OP, - GD_MGMT_FRIEND_REMOVE, - GD_MGMT_FRIEND_UPDATE, - GD_MGMT_CLI_PROBE, - GD_MGMT_CLI_DEPROBE, - GD_MGMT_CLI_LIST_FRIENDS, - GD_MGMT_CLI_CREATE_VOLUME, - GD_MGMT_CLI_GET_VOLUME, - GD_MGMT_CLI_DELETE_VOLUME, - GD_MGMT_CLI_START_VOLUME, - GD_MGMT_CLI_STOP_VOLUME, - GD_MGMT_CLI_RENAME_VOLUME, - GD_MGMT_CLI_DEFRAG_VOLUME, - GD_MGMT_CLI_SET_VOLUME, - GD_MGMT_CLI_ADD_BRICK, - GD_MGMT_CLI_REMOVE_BRICK, - GD_MGMT_CLI_REPLACE_BRICK, - GD_MGMT_CLI_LOG_FILENAME, - GD_MGMT_CLI_LOG_LOCATE, - GD_MGMT_CLI_LOG_ROTATE, - GD_MGMT_MAXVALUE, -}; - -typedef enum gf_mgmt_procnum_ gf_mgmt_procnum; - -enum gf_cli_procnum { - GF1_CLI_NULL = GD_MGMT_MAXVALUE+1, /* 0 */ - GF1_CLI_PROBE, - GF1_CLI_DEPROBE, - GF1_CLI_LIST_FRIENDS, - GF1_CLI_CREATE_VOLUME, - GF1_CLI_GET_VOLUME, - GF1_CLI_GET_NEXT_VOLUME, - GF1_CLI_DELETE_VOLUME, - GF1_CLI_START_VOLUME, - GF1_CLI_STOP_VOLUME, - GF1_CLI_RENAME_VOLUME, - GF1_CLI_DEFRAG_VOLUME, - GF1_CLI_SET_VOLUME, - GF1_CLI_ADD_BRICK, - GF1_CLI_REMOVE_BRICK, - GF1_CLI_REPLACE_BRICK, - GF1_CLI_LOG_FILENAME, - GF1_CLI_LOG_LOCATE, - GF1_CLI_LOG_ROTATE, - GF1_CLI_MAXVALUE, + GF_HNDSK_NULL, + GF_HNDSK_SETVOLUME, + GF_HNDSK_GETSPEC, + GF_HNDSK_PING, + GF_HNDSK_SET_LK_VER, + GF_HNDSK_EVENT_NOTIFY, + GF_HNDSK_GET_VOLUME_INFO, + GF_HNDSK_GET_SNAPSHOT_INFO, + GF_HNDSK_MAXVALUE, }; - enum gf_pmap_procnum { - GF_PMAP_NULL = 0, - GF_PMAP_PORTBYBRICK, - GF_PMAP_BRICKBYPORT, - GF_PMAP_SIGNUP, - GF_PMAP_SIGNIN, - GF_PMAP_SIGNOUT, - GF_PMAP_MAXVALUE, + GF_PMAP_NULL = 0, + GF_PMAP_PORTBYBRICK, + GF_PMAP_BRICKBYPORT, + /* + * SIGNUP is not used, and shouldn't be used. It was kept here only + * to avoid changing the numbers for things that come after it in this + * list. + */ + GF_PMAP_SIGNUP, + GF_PMAP_SIGNIN, + GF_PMAP_SIGNOUT, + GF_PMAP_MAXVALUE, +}; + +enum gf_aggregator_procnum { + GF_AGGREGATOR_NULL = 0, + GF_AGGREGATOR_LOOKUP, + GF_AGGREGATOR_GETLIMIT, + GF_AGGREGATOR_MAXVALUE, +}; + +enum gf_pmap_port_type { + GF_PMAP_PORT_FREE = 0, + GF_PMAP_PORT_FOREIGN, /* it actually means, not sure who is using it, but it + is in-use */ + GF_PMAP_PORT_LEASED, + GF_PMAP_PORT_ANY, + GF_PMAP_PORT_BRICKSERVER, /* port used by brick process */ }; +typedef enum gf_pmap_port_type gf_pmap_port_type_t; enum gf_probe_resp { - GF_PROBE_SUCCESS, - GF_PROBE_LOCALHOST, - GF_PROBE_FRIEND, + GF_PROBE_SUCCESS, + GF_PROBE_LOCALHOST, + GF_PROBE_FRIEND, + GF_PROBE_ANOTHER_CLUSTER, + GF_PROBE_VOLUME_CONFLICT, + GF_PROBE_SAME_UUID, + GF_PROBE_UNKNOWN_PEER, + GF_PROBE_ADD_FAILED, + GF_PROBE_QUORUM_NOT_MET, + GF_PROBE_MISSED_SNAP_CONFLICT, + GF_PROBE_SNAP_CONFLICT, + GF_PROBE_FRIEND_DETACHING, +}; + +enum gf_deprobe_resp { + GF_DEPROBE_SUCCESS, + GF_DEPROBE_LOCALHOST, + GF_DEPROBE_NOT_FRIEND, + GF_DEPROBE_BRICK_EXIST, + GF_DEPROBE_FRIEND_DOWN, + GF_DEPROBE_QUORUM_NOT_MET, + GF_DEPROBE_FRIEND_DETACHING, + GF_DEPROBE_SNAP_BRICK_EXIST, }; enum gf_cbk_procnum { - GF_CBK_NULL = 0, - GF_CBK_FETCHSPEC, - GF_CBK_INO_FLUSH, - GF_CBK_MAXVALUE, + GF_CBK_NULL = 0, + GF_CBK_FETCHSPEC, + GF_CBK_INO_FLUSH, + GF_CBK_EVENT_NOTIFY, + GF_CBK_GET_SNAPS, + GF_CBK_CACHE_INVALIDATION, + GF_CBK_CHILD_UP, + GF_CBK_CHILD_DOWN, + GF_CBK_RECALL_LEASE, + GF_CBK_STATEDUMP, + GF_CBK_INODELK_CONTENTION, + GF_CBK_ENTRYLK_CONTENTION, + GF_CBK_MAXVALUE, +}; + +enum gluster_cli_procnum { + GLUSTER_CLI_NULL, /* 0 */ + GLUSTER_CLI_PROBE, + GLUSTER_CLI_DEPROBE, + GLUSTER_CLI_LIST_FRIENDS, + GLUSTER_CLI_CREATE_VOLUME, + GLUSTER_CLI_GET_VOLUME, + GLUSTER_CLI_GET_NEXT_VOLUME, + GLUSTER_CLI_DELETE_VOLUME, + GLUSTER_CLI_START_VOLUME, + GLUSTER_CLI_STOP_VOLUME, + GLUSTER_CLI_RENAME_VOLUME, + GLUSTER_CLI_DEFRAG_VOLUME, + GLUSTER_CLI_SET_VOLUME, + GLUSTER_CLI_ADD_BRICK, + GLUSTER_CLI_REMOVE_BRICK, + GLUSTER_CLI_REPLACE_BRICK, + GLUSTER_CLI_LOG_ROTATE, + GLUSTER_CLI_GETSPEC, + GLUSTER_CLI_PMAP_PORTBYBRICK, + GLUSTER_CLI_SYNC_VOLUME, + GLUSTER_CLI_RESET_VOLUME, + GLUSTER_CLI_FSM_LOG, + GLUSTER_CLI_GSYNC_SET, + GLUSTER_CLI_PROFILE_VOLUME, + GLUSTER_CLI_QUOTA, + GLUSTER_CLI_TOP_VOLUME, + GLUSTER_CLI_GETWD, + GLUSTER_CLI_STATUS_VOLUME, + GLUSTER_CLI_STATUS_ALL, + GLUSTER_CLI_MOUNT, + GLUSTER_CLI_UMOUNT, + GLUSTER_CLI_HEAL_VOLUME, + GLUSTER_CLI_STATEDUMP_VOLUME, + GLUSTER_CLI_LIST_VOLUME, + GLUSTER_CLI_CLRLOCKS_VOLUME, + GLUSTER_CLI_UUID_RESET, + GLUSTER_CLI_UUID_GET, + GLUSTER_CLI_COPY_FILE, + GLUSTER_CLI_SYS_EXEC, + GLUSTER_CLI_SNAP, + GLUSTER_CLI_BARRIER_VOLUME, + GLUSTER_CLI_GET_VOL_OPT, + GLUSTER_CLI_GANESHA, + GLUSTER_CLI_BITROT, + GLUSTER_CLI_ATTACH_TIER, + GLUSTER_CLI_TIER, + GLUSTER_CLI_GET_STATE, + GLUSTER_CLI_RESET_BRICK, + GLUSTER_CLI_REMOVE_TIER_BRICK, + GLUSTER_CLI_ADD_TIER_BRICK, + GLUSTER_CLI_MAXVALUE, +}; + +enum glusterd_mgmt_procnum { + GLUSTERD_MGMT_NULL, /* 0 */ + GLUSTERD_MGMT_CLUSTER_LOCK, + GLUSTERD_MGMT_CLUSTER_UNLOCK, + GLUSTERD_MGMT_STAGE_OP, + GLUSTERD_MGMT_COMMIT_OP, + GLUSTERD_MGMT_MAXVALUE, +}; + +enum glusterd_friend_procnum { + GLUSTERD_FRIEND_NULL, /* 0 */ + GLUSTERD_PROBE_QUERY, + GLUSTERD_FRIEND_ADD, + GLUSTERD_FRIEND_REMOVE, + GLUSTERD_FRIEND_UPDATE, + GLUSTERD_FRIEND_MAXVALUE, +}; + +enum glusterd_brick_procnum { + GLUSTERD_BRICK_NULL, /* 0 */ + GLUSTERD_BRICK_TERMINATE, + GLUSTERD_BRICK_XLATOR_INFO, + GLUSTERD_BRICK_XLATOR_OP, + GLUSTERD_BRICK_STATUS, + GLUSTERD_BRICK_OP, + GLUSTERD_BRICK_XLATOR_DEFRAG, + GLUSTERD_NODE_PROFILE, + GLUSTERD_NODE_STATUS, + GLUSTERD_VOLUME_BARRIER_OP, + GLUSTERD_BRICK_BARRIER, + GLUSTERD_NODE_BITROT, + GLUSTERD_BRICK_ATTACH, + GLUSTERD_DUMP_METRICS, + GLUSTERD_SVC_ATTACH, + GLUSTERD_SVC_DETACH, + GLUSTERD_BRICK_MAXVALUE, +}; + +enum glusterd_mgmt_hndsk_procnum { + GD_MGMT_HNDSK_NULL, + GD_MGMT_HNDSK_VERSIONS, + GD_MGMT_HNDSK_VERSIONS_ACK, + GD_MGMT_HNDSK_MAXVALUE, }; -#define GLUSTER3_1_FOP_PROGRAM 1298437 /* Completely random */ -#define GLUSTER3_1_FOP_VERSION 310 /* 3.1.0 */ -#define GLUSTER3_1_FOP_PROCCNT GFS3_OP_MAXVALUE +typedef enum { + GF_SHD_OP_INVALID, + GF_SHD_OP_HEAL_INDEX, + GF_SHD_OP_HEAL_FULL, + GF_SHD_OP_INDEX_SUMMARY, + GF_SHD_OP_HEALED_FILES, + GF_SHD_OP_HEAL_FAILED_FILES, + GF_SHD_OP_SPLIT_BRAIN_FILES, + GF_SHD_OP_STATISTICS, + GF_SHD_OP_STATISTICS_HEAL_COUNT, + GF_SHD_OP_STATISTICS_HEAL_COUNT_PER_REPLICA, + GF_SHD_OP_SBRAIN_HEAL_FROM_BIGGER_FILE, + GF_SHD_OP_SBRAIN_HEAL_FROM_BRICK, + GF_SHD_OP_HEAL_ENABLE, + GF_SHD_OP_HEAL_DISABLE, + GF_SHD_OP_SBRAIN_HEAL_FROM_LATEST_MTIME, + GF_SHD_OP_GRANULAR_ENTRY_HEAL_ENABLE, + GF_SHD_OP_GRANULAR_ENTRY_HEAL_DISABLE, + GF_SHD_OP_HEAL_SUMMARY, +} gf_xl_afr_op_t; + +struct gf_gsync_detailed_status_ { + char node[NAME_MAX]; + char master[NAME_MAX]; + char brick[PATH_MAX]; + char slave_user[NAME_MAX]; + char slave[NAME_MAX]; + char slave_node[NAME_MAX]; + char worker_status[NAME_MAX]; + char crawl_status[NAME_MAX]; + char last_synced[NAME_MAX]; + char last_synced_utc[NAME_MAX]; + char entry[NAME_MAX]; + char data[NAME_MAX]; + char meta[NAME_MAX]; + char failures[NAME_MAX]; + char checkpoint_time[NAME_MAX]; + char checkpoint_time_utc[NAME_MAX]; + char checkpoint_completed[NAME_MAX]; + char checkpoint_completion_time[NAME_MAX]; + char checkpoint_completion_time_utc[NAME_MAX]; + char brick_host_uuid[NAME_MAX]; + char slavekey[NAME_MAX]; + char session_slave[NAME_MAX]; +}; + +enum glusterd_mgmt_v3_procnum { + GLUSTERD_MGMT_V3_NULL, /* 0 */ + GLUSTERD_MGMT_V3_LOCK, + GLUSTERD_MGMT_V3_PRE_VALIDATE, + GLUSTERD_MGMT_V3_BRICK_OP, + GLUSTERD_MGMT_V3_COMMIT, + GLUSTERD_MGMT_V3_POST_COMMIT, + GLUSTERD_MGMT_V3_POST_VALIDATE, + GLUSTERD_MGMT_V3_UNLOCK, + GLUSTERD_MGMT_V3_MAXVALUE, +}; + +typedef struct gf_gsync_detailed_status_ gf_gsync_status_t; + +enum gf_get_volume_info_type { + GF_GET_VOLUME_NONE, /* 0 */ + GF_GET_VOLUME_UUID +}; + +typedef enum gf_get_volume_info_type gf_get_volume_info_type; + +enum gf_get_snapshot_info_type { + GF_GET_SNAPSHOT_LIST, +}; +typedef enum gf_get_snapshot_info_type gf_get_snapshot_info_type; + +enum gf_getspec_flags_type { GF_GETSPEC_FLAG_SERVERS_LIST = 1 }; +typedef enum gf_getspec_flags_type gf_getspec_flags_type; + +#define GLUSTER_HNDSK_PROGRAM 14398633 /* Completely random */ +#define GLUSTER_HNDSK_VERSION 2 /* 0.0.2 */ + +#define GLUSTER_PMAP_PROGRAM 34123456 +#define GLUSTER_PMAP_VERSION 1 + +#define GLUSTER_CBK_PROGRAM 52743234 /* Completely random */ +#define GLUSTER_CBK_VERSION 1 /* 0.0.1 */ + +#define GLUSTER_FOP_PROGRAM 1298437 /* Completely random */ +#define GLUSTER_FOP_VERSION 330 /* 3.3.0 */ +#define GLUSTER_FOP_PROCCNT GFS3_OP_MAXVALUE + +#define GLUSTER_FOP_VERSION_v2 400 /* 4.0.0 */ + +/* Aggregator */ +#define GLUSTER_AGGREGATOR_PROGRAM 29852134 /* Completely random */ +#define GLUSTER_AGGREGATOR_VERSION 1 + +/* Second version */ +#define GD_MGMT_PROGRAM 1238433 /* Completely random */ +#define GD_MGMT_VERSION 2 /* 0.0.2 */ + +#define GD_FRIEND_PROGRAM 1238437 /* Completely random */ +#define GD_FRIEND_VERSION 2 /* 0.0.2 */ -#define GLUSTERD1_MGMT_PROGRAM 1298433 /* Completely random */ -#define GLUSTERD1_MGMT_VERSION 1 /* 0.0.1 */ -#define GLUSTERD1_MGMT_PROCCNT GD_MGMT_MAXVALUE +#define GLUSTER_CLI_PROGRAM 1238463 /* Completely random */ +#define GLUSTER_CLI_VERSION 2 /* 0.0.2 */ -#define GLUSTER3_1_CLI_PROGRAM 1298433 /* Completely random */ -#define GLUSTER3_1_CLI_VERSION 1 /* 0.0.1 */ -#define GLUSTER3_1_CLI_PROCCNT GF1_CLI_MAXVALUE +#define GD_BRICK_PROGRAM 4867634 /*Completely random*/ +#define GD_BRICK_VERSION 2 -#define GLUSTER_HNDSK_PROGRAM 14398633 /* Completely random */ -#define GLUSTER_HNDSK_VERSION 1 /* 0.0.1 */ +/* Third version */ +#define GD_MGMT_V3_VERSION 3 -#define GLUSTER_PMAP_PROGRAM 34123456 -#define GLUSTER_PMAP_VERSION 1 +/* OP-VERSION handshake */ +#define GD_MGMT_HNDSK_PROGRAM 1239873 /* Completely random */ +#define GD_MGMT_HNDSK_VERSION 1 -#define GLUSTER_CBK_PROGRAM 52743234 /* Completely random */ -#define GLUSTER_CBK_VERSION 1 /* 0.0.1 */ +#define GD_VOLUME_NAME_MAX \ + ((NAME_MAX + 1) - 5) /* Maximum size of volume name */ +#define GD_VOLUME_NAME_MAX_TIER \ + (GD_VOLUME_NAME_MAX + 5) /* +5 needed for '-hot' \ + and '-cold' suffixes*/ +#define GLUSTER_PROCESS_UUID_FMT \ + "CTX_ID:%s-GRAPH_ID:%d-PID:%d-HOST:%s-PC_NAME:%s-RECON_NO:%s" #endif /* !_PROTOCOL_COMMON_H */ diff --git a/rpc/rpc-lib/src/rpc-clnt-ping.c b/rpc/rpc-lib/src/rpc-clnt-ping.c new file mode 100644 index 00000000000..31f17841bea --- /dev/null +++ b/rpc/rpc-lib/src/rpc-clnt-ping.c @@ -0,0 +1,357 @@ +/* + Copyright (c) 2014 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + +#include "rpc-clnt.h" +#include "rpc-clnt-ping.h" +#include <glusterfs/byte-order.h> +#include "xdr-rpcclnt.h" +#include "rpc-transport.h" +#include "protocol-common.h" +#include <glusterfs/mem-pool.h> +#include "xdr-rpc.h" +#include "rpc-common-xdr.h" +#include <glusterfs/timespec.h> + +char *clnt_ping_procs[GF_DUMP_MAXVALUE] = { + [GF_DUMP_PING] = "NULL", +}; +struct rpc_clnt_program clnt_ping_prog = { + .progname = "GF-DUMP", + .prognum = GLUSTER_DUMP_PROGRAM, + .progver = GLUSTER_DUMP_VERSION, + .procnames = clnt_ping_procs, +}; + +struct ping_local { + struct rpc_clnt *rpc; + struct timespec submit_time; +}; + +/* Must be called under conn->lock */ +static int +__rpc_clnt_rearm_ping_timer(struct rpc_clnt *rpc, gf_timer_cbk_t cbk) +{ + rpc_clnt_connection_t *conn = &rpc->conn; + rpc_transport_t *trans = conn->trans; + struct timespec timeout = { + 0, + }; + gf_timer_t *timer = NULL; + + if (conn->ping_timer) { + gf_log_callingfn("", GF_LOG_CRITICAL, + "%s: ping timer event already scheduled", + conn->trans->peerinfo.identifier); + return -1; + } + + timeout.tv_sec = conn->ping_timeout; + timeout.tv_nsec = 0; + + rpc_clnt_ref(rpc); + timer = gf_timer_call_after(rpc->ctx, timeout, cbk, (void *)rpc); + if (timer == NULL) { + gf_log(trans->name, GF_LOG_WARNING, "unable to setup ping timer"); + + /* This unref can't be the last. We just took a ref few lines + * above. So this can be performed under conn->lock. */ + rpc_clnt_unref(rpc); + conn->ping_started = 0; + return -1; + } + + conn->ping_timer = timer; + conn->ping_started = 1; + return 0; +} + +/* Must be called under conn->lock */ +int +rpc_clnt_remove_ping_timer_locked(struct rpc_clnt *rpc) +{ + rpc_clnt_connection_t *conn = &rpc->conn; + gf_timer_t *timer = NULL; + + if (conn->ping_timer) { + timer = conn->ping_timer; + conn->ping_timer = NULL; + gf_timer_call_cancel(rpc->ctx, timer); + conn->ping_started = 0; + return 1; + } + + /* This is to account for rpc_clnt_disable that might have set + * conn->trans to NULL. */ + if (conn->trans) + gf_log_callingfn("", GF_LOG_DEBUG, + "%s: ping timer event " + "already removed", + conn->trans->peerinfo.identifier); + + return 0; +} + +static void +rpc_clnt_start_ping(void *rpc_ptr); + +void +rpc_clnt_ping_timer_expired(void *rpc_ptr) +{ + struct rpc_clnt *rpc = NULL; + rpc_transport_t *trans = NULL; + rpc_clnt_connection_t *conn = NULL; + int disconnect = 0; + struct timespec current = { + 0, + }; + int unref = 0; + + rpc = (struct rpc_clnt *)rpc_ptr; + conn = &rpc->conn; + trans = conn->trans; + + if (!trans) { + gf_log("ping-timer", GF_LOG_WARNING, "transport not initialized"); + goto out; + } + + timespec_now_realtime(¤t); + pthread_mutex_lock(&conn->lock); + { + unref = rpc_clnt_remove_ping_timer_locked(rpc); + + if (((current.tv_sec - conn->last_received.tv_sec) < + conn->ping_timeout) || + ((current.tv_sec - conn->last_sent.tv_sec) < conn->ping_timeout)) { + gf_log(trans->name, GF_LOG_TRACE, + "ping timer expired but transport activity " + "detected - not bailing transport"); + if (__rpc_clnt_rearm_ping_timer(rpc, rpc_clnt_ping_timer_expired) == + -1) { + gf_log(trans->name, GF_LOG_WARNING, + "unable to setup ping timer"); + } + } else { + conn->ping_started = 0; + disconnect = 1; + } + } + pthread_mutex_unlock(&conn->lock); + + if (unref) + rpc_clnt_unref(rpc); + + if (disconnect) { + gf_log(trans->name, GF_LOG_CRITICAL, + "server %s has not responded in the last %d " + "seconds, disconnecting.", + trans->peerinfo.identifier, conn->ping_timeout); + + rpc_transport_disconnect(conn->trans, _gf_false); + } + +out: + return; +} + +int +rpc_clnt_ping_cbk(struct rpc_req *req, struct iovec *iov, int count, + void *myframe) +{ + struct ping_local *local = NULL; + xlator_t *this = NULL; + rpc_clnt_connection_t *conn = NULL; + call_frame_t *frame = NULL; + int unref = 0; + gf_boolean_t call_notify = _gf_false; + + struct timespec now; + struct timespec delta; + int64_t latency_msec = 0; + int ret = 0; + + if (!myframe) { + gf_log(THIS->name, GF_LOG_WARNING, "frame with the request is NULL"); + goto out; + } + + frame = myframe; + this = frame->this; + local = frame->local; + conn = &local->rpc->conn; + + timespec_now(&now); + timespec_sub(&local->submit_time, &now, &delta); + latency_msec = delta.tv_sec * 1000 + delta.tv_nsec / 1000000; + + gf_log(THIS->name, GF_LOG_DEBUG, "Ping latency is %" PRIu64 "ms", + latency_msec); + call_notify = _gf_true; + + pthread_mutex_lock(&conn->lock); + { + unref = rpc_clnt_remove_ping_timer_locked(local->rpc); + if (req->rpc_status == -1) { + conn->ping_started = 0; + pthread_mutex_unlock(&conn->lock); + if (unref) { + gf_log(this->name, GF_LOG_WARNING, + "socket or ib related error"); + + } else { + /* timer expired and transport bailed out */ + gf_log(this->name, GF_LOG_WARNING, "socket disconnected"); + } + goto after_unlock; + } + + if (__rpc_clnt_rearm_ping_timer(local->rpc, rpc_clnt_start_ping) == + -1) { + /* unlock before logging error */ + pthread_mutex_unlock(&conn->lock); + gf_log(this->name, GF_LOG_WARNING, "failed to set the ping timer"); + } else { + /* just unlock the mutex */ + pthread_mutex_unlock(&conn->lock); + } + } +after_unlock: + if (call_notify) { + ret = local->rpc->notifyfn(local->rpc, this, RPC_CLNT_PING, + (void *)(uintptr_t)latency_msec); + if (ret) { + gf_log(this->name, GF_LOG_WARNING, "RPC_CLNT_PING notify failed"); + } + } +out: + if (unref) + rpc_clnt_unref(local->rpc); + + if (frame) { + GF_FREE(frame->local); + frame->local = NULL; + STACK_DESTROY(frame->root); + } + return 0; +} + +int +rpc_clnt_ping(struct rpc_clnt *rpc) +{ + call_frame_t *frame = NULL; + int32_t ret = -1; + rpc_clnt_connection_t *conn = NULL; + struct ping_local *local = NULL; + + conn = &rpc->conn; + local = GF_MALLOC(sizeof(struct ping_local), gf_common_ping_local_t); + if (!local) + return ret; + frame = create_frame(THIS, THIS->ctx->pool); + if (!frame) { + GF_FREE(local); + return ret; + } + + local->rpc = rpc; + timespec_now(&local->submit_time); + frame->local = local; + + ret = rpc_clnt_submit(rpc, &clnt_ping_prog, GF_DUMP_PING, rpc_clnt_ping_cbk, + NULL, 0, NULL, 0, NULL, frame, NULL, 0, NULL, 0, + NULL); + if (ret) { + /* FIXME: should we free the frame here? Methinks so! */ + gf_log(THIS->name, GF_LOG_ERROR, "failed to start ping timer"); + } else { + /* ping successfully queued in list of saved frames + * for the connection*/ + pthread_mutex_lock(&conn->lock); + conn->pingcnt++; + pthread_mutex_unlock(&conn->lock); + } + + return ret; +} + +static void +rpc_clnt_start_ping(void *rpc_ptr) +{ + struct rpc_clnt *rpc = NULL; + rpc_clnt_connection_t *conn = NULL; + int frame_count = 0; + int unref = 0; + + rpc = (struct rpc_clnt *)rpc_ptr; + conn = &rpc->conn; + + if (conn->ping_timeout == 0) { + gf_log(THIS->name, GF_LOG_DEBUG, + "ping timeout is 0," + " returning"); + return; + } + + pthread_mutex_lock(&conn->lock); + { + unref = rpc_clnt_remove_ping_timer_locked(rpc); + + if (conn->saved_frames) { + GF_ASSERT(conn->saved_frames->count >= 0); + /* treat the case where conn->saved_frames is NULL + as no pending frames */ + frame_count = conn->saved_frames->count; + } + + if ((frame_count == 0) || !conn->connected) { + gf_log(THIS->name, GF_LOG_DEBUG, + "returning as transport is already disconnected" + " OR there are no frames (%d || %d)", + !conn->connected, frame_count); + + pthread_mutex_unlock(&conn->lock); + if (unref) + rpc_clnt_unref(rpc); + return; + } + + if (__rpc_clnt_rearm_ping_timer(rpc, rpc_clnt_ping_timer_expired) == + -1) { + gf_log(THIS->name, GF_LOG_WARNING, "unable to setup ping timer"); + pthread_mutex_unlock(&conn->lock); + if (unref) + rpc_clnt_unref(rpc); + return; + } + } + pthread_mutex_unlock(&conn->lock); + if (unref) + rpc_clnt_unref(rpc); + + rpc_clnt_ping(rpc); +} + +void +rpc_clnt_check_and_start_ping(struct rpc_clnt *rpc) +{ + char start_ping = 0; + + pthread_mutex_lock(&rpc->conn.lock); + { + if (!rpc->conn.ping_started) + start_ping = 1; + } + pthread_mutex_unlock(&rpc->conn.lock); + + if (start_ping) + rpc_clnt_start_ping((void *)rpc); + + return; +} diff --git a/rpc/rpc-lib/src/rpc-clnt-ping.h b/rpc/rpc-lib/src/rpc-clnt-ping.h new file mode 100644 index 00000000000..e5466a828c2 --- /dev/null +++ b/rpc/rpc-lib/src/rpc-clnt-ping.h @@ -0,0 +1,16 @@ +/* + Copyright (c) 2014 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + +struct rpc_clnt; +#define RPC_DEFAULT_PING_TIMEOUT 30 +void +rpc_clnt_check_and_start_ping(struct rpc_clnt *rpc_ptr); +int +rpc_clnt_remove_ping_timer_locked(struct rpc_clnt *rpc); diff --git a/rpc/rpc-lib/src/rpc-clnt.c b/rpc/rpc-lib/src/rpc-clnt.c index de4087ad52b..517037c4a5d 100644 --- a/rpc/rpc-lib/src/rpc-clnt.c +++ b/rpc/rpc-lib/src/rpc-clnt.c @@ -1,465 +1,480 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ - -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - -#define RPC_CLNT_DEFAULT_REQUEST_COUNT 4096 +#define RPC_CLNT_DEFAULT_REQUEST_COUNT 512 #include "rpc-clnt.h" -#include "byte-order.h" +#include "rpc-clnt-ping.h" +#include <glusterfs/byte-order.h> #include "xdr-rpcclnt.h" #include "rpc-transport.h" #include "protocol-common.h" -#include "mem-pool.h" +#include <glusterfs/mem-pool.h> #include "xdr-rpc.h" +#include "rpc-common-xdr.h" void -rpc_clnt_reply_deinit (struct rpc_req *req, struct mem_pool *pool); +rpc_clnt_reply_deinit(struct rpc_req *req, struct mem_pool *pool); -uint64_t -rpc_clnt_new_callid (struct rpc_clnt *clnt) +struct saved_frame * +__saved_frames_get_timedout(struct saved_frames *frames, uint32_t timeout, + struct timeval *current) { - uint64_t callid = 0; + struct saved_frame *bailout_frame = NULL, *tmp = NULL; - pthread_mutex_lock (&clnt->lock); - { - callid = ++clnt->xid; + if (!list_empty(&frames->sf.list)) { + tmp = list_entry(frames->sf.list.next, typeof(*tmp), list); + if ((tmp->saved_at.tv_sec + timeout) <= current->tv_sec) { + bailout_frame = tmp; + list_del_init(&bailout_frame->list); + frames->count--; } - pthread_mutex_unlock (&clnt->lock); + } - return callid; + return bailout_frame; } - -struct saved_frame * -__saved_frames_get_timedout (struct saved_frames *frames, uint32_t timeout, - struct timeval *current) +static int +_is_lock_fop(struct saved_frame *sframe) { - struct saved_frame *bailout_frame = NULL, *tmp = NULL; - - if (!list_empty(&frames->sf.list)) { - tmp = list_entry (frames->sf.list.next, typeof (*tmp), list); - if ((tmp->saved_at.tv_sec + timeout) < current->tv_sec) { - bailout_frame = tmp; - list_del_init (&bailout_frame->list); - frames->count--; - } - } - - return bailout_frame; -} + int fop = 0; + if (SFRAME_GET_PROGNUM(sframe) == GLUSTER_FOP_PROGRAM && + SFRAME_GET_PROGVER(sframe) == GLUSTER_FOP_VERSION) + fop = SFRAME_GET_PROCNUM(sframe); -struct saved_frame * -__saved_frames_put (struct saved_frames *frames, void *frame, - struct rpc_req *rpcreq) -{ - struct saved_frame *saved_frame = NULL; - - saved_frame = mem_get (rpcreq->conn->rpc_clnt->saved_frames_pool); - if (!saved_frame) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "out of memory"); - goto out; - } - /* THIS should be saved and set back */ + return ((fop == GFS3_OP_LK) || (fop == GFS3_OP_INODELK) || + (fop == GFS3_OP_FINODELK) || (fop == GFS3_OP_ENTRYLK) || + (fop == GFS3_OP_FENTRYLK)); +} - memset (saved_frame, 0, sizeof (*saved_frame)); - INIT_LIST_HEAD (&saved_frame->list); +static struct saved_frame * +__saved_frames_put(struct saved_frames *frames, void *frame, + struct rpc_req *rpcreq) +{ + struct saved_frame *saved_frame = mem_get( + rpcreq->conn->rpc_clnt->saved_frames_pool); - saved_frame->capital_this = THIS; - saved_frame->frame = frame; - saved_frame->rpcreq = rpcreq; - gettimeofday (&saved_frame->saved_at, NULL); + if (!saved_frame) { + goto out; + } + /* THIS should be saved and set back */ - list_add_tail (&saved_frame->list, &frames->sf.list); - frames->count++; + INIT_LIST_HEAD(&saved_frame->list); -out: - return saved_frame; -} + saved_frame->capital_this = THIS; + saved_frame->frame = frame; + saved_frame->rpcreq = rpcreq; + gettimeofday(&saved_frame->saved_at, NULL); + memset(&saved_frame->rsp, 0, sizeof(rpc_transport_rsp_t)); + if (_is_lock_fop(saved_frame)) + list_add_tail(&saved_frame->list, &frames->lk_sf.list); + else + list_add_tail(&saved_frame->list, &frames->sf.list); -void -saved_frames_delete (struct saved_frame *saved_frame, - rpc_clnt_connection_t *conn) -{ - if (!saved_frame || !conn) { - goto out; - } + frames->count++; - pthread_mutex_lock (&conn->lock); - { - list_del_init (&saved_frame->list); - conn->saved_frames->count--; - } - pthread_mutex_unlock (&conn->lock); - - if (saved_frame->rpcreq != NULL) { - rpc_clnt_reply_deinit (saved_frame->rpcreq, - conn->rpc_clnt->reqpool); - } - - mem_put (conn->rpc_clnt->saved_frames_pool, saved_frame); out: - return; + return saved_frame; } - static void -call_bail (void *data) +call_bail(void *data) { - struct rpc_clnt *clnt = NULL; - rpc_clnt_connection_t *conn = NULL; - struct timeval current; - struct list_head list; - struct saved_frame *saved_frame = NULL; - struct saved_frame *trav = NULL; - struct saved_frame *tmp = NULL; - struct tm frame_sent_tm; - char frame_sent[32] = {0,}; - struct timeval timeout = {0,}; - struct iovec iov = {0,}; - - GF_VALIDATE_OR_GOTO ("client", data, out); - - clnt = data; - - conn = &clnt->conn; - - gettimeofday (¤t, NULL); - INIT_LIST_HEAD (&list); - - pthread_mutex_lock (&conn->lock); - { - /* Chaining to get call-always functionality from - call-once timer */ - if (conn->timer) { - timeout.tv_sec = 10; - timeout.tv_usec = 0; - - gf_timer_call_cancel (clnt->ctx, conn->timer); - conn->timer = gf_timer_call_after (clnt->ctx, - timeout, - call_bail, - (void *) clnt); - - if (conn->timer == NULL) { - gf_log (conn->trans->name, GF_LOG_DEBUG, - "Cannot create bailout timer"); - } - } - - do { - saved_frame = - __saved_frames_get_timedout (conn->saved_frames, - conn->frame_timeout, - ¤t); - if (saved_frame) - list_add (&saved_frame->list, &list); - - } while (saved_frame); - } - pthread_mutex_unlock (&conn->lock); - - list_for_each_entry_safe (trav, tmp, &list, list) { - localtime_r (&trav->saved_at.tv_sec, &frame_sent_tm); - strftime (frame_sent, 32, "%Y-%m-%d %H:%M:%S", &frame_sent_tm); - - gf_log (conn->trans->name, GF_LOG_ERROR, - "bailing out frame type(%s) op(%s(%d)) xid = %u " - "sent = %s. timeout = %d", - trav->rpcreq->prog->progname, - (trav->rpcreq->prog->procnames) ? - trav->rpcreq->prog->procnames[trav->rpcreq->procnum] : - "--", - trav->rpcreq->procnum, trav->rpcreq->xid, frame_sent, - conn->frame_timeout); - - trav->rpcreq->rpc_status = -1; - trav->rpcreq->cbkfn (trav->rpcreq, &iov, 1, trav->frame); - - rpc_clnt_reply_deinit (trav->rpcreq, clnt->reqpool); - list_del_init (&trav->list); - mem_put (conn->rpc_clnt->saved_frames_pool, trav); - } + rpc_transport_t *trans = NULL; + struct rpc_clnt *clnt = NULL; + rpc_clnt_connection_t *conn = NULL; + struct timeval current; + struct list_head list; + struct saved_frame *saved_frame = NULL; + struct saved_frame *trav = NULL; + struct saved_frame *tmp = NULL; + char frame_sent[GF_TIMESTR_SIZE] = { + 0, + }; + struct timespec timeout = { + 0, + }; + char peerid[UNIX_PATH_MAX] = {0}; + gf_boolean_t need_unref = _gf_false; + + GF_VALIDATE_OR_GOTO("client", data, out); + + clnt = data; + + conn = &clnt->conn; + pthread_mutex_lock(&conn->lock); + { + trans = conn->trans; + if (trans) { + (void)snprintf(peerid, sizeof(peerid), "%s", + conn->trans->peerinfo.identifier); + } + } + pthread_mutex_unlock(&conn->lock); + /*rpc_clnt_connection_cleanup will be unwinding all saved frames, + * bailed or otherwise*/ + if (!trans) + goto out; + + gettimeofday(¤t, NULL); + INIT_LIST_HEAD(&list); + + pthread_mutex_lock(&conn->lock); + { + /* Chaining to get call-always functionality from + call-once timer */ + if (conn->timer) { + timeout.tv_sec = 10; + timeout.tv_nsec = 0; + + /* Ref rpc as it's added to timer event queue */ + rpc_clnt_ref(clnt); + gf_timer_call_cancel(clnt->ctx, conn->timer); + conn->timer = gf_timer_call_after(clnt->ctx, timeout, call_bail, + (void *)clnt); + + if (conn->timer == NULL) { + gf_log(conn->name, GF_LOG_WARNING, + "Cannot create bailout timer for %s", peerid); + need_unref = _gf_true; + } + } + + do { + saved_frame = __saved_frames_get_timedout( + conn->saved_frames, conn->frame_timeout, ¤t); + if (saved_frame) + list_add(&saved_frame->list, &list); + + } while (saved_frame); + } + pthread_mutex_unlock(&conn->lock); + + if (list_empty(&list)) + goto out; + + list_for_each_entry_safe(trav, tmp, &list, list) + { + gf_time_fmt_tv(frame_sent, sizeof frame_sent, &trav->saved_at, + gf_timefmt_FT); + + gf_log(conn->name, GF_LOG_ERROR, + "bailing out frame type(%s), op(%s(%d)), xid = 0x%x, " + "unique = %" PRIu64 ", sent = %s, timeout = %d for %s", + trav->rpcreq->prog->progname, + (trav->rpcreq->prog->procnames) + ? trav->rpcreq->prog->procnames[trav->rpcreq->procnum] + : "--", + trav->rpcreq->procnum, trav->rpcreq->xid, + ((call_frame_t *)(trav->frame))->root->unique, frame_sent, + conn->frame_timeout, peerid); + + clnt = rpc_clnt_ref(clnt); + trav->rpcreq->rpc_status = -1; + trav->rpcreq->cbkfn(trav->rpcreq, NULL, 0, trav->frame); + + rpc_clnt_reply_deinit(trav->rpcreq, clnt->reqpool); + clnt = rpc_clnt_unref(clnt); + list_del_init(&trav->list); + mem_put(trav); + } out: - return; + rpc_clnt_unref(clnt); + if (need_unref) + rpc_clnt_unref(clnt); + return; } - /* to be called with conn->lock held */ -struct saved_frame * -__save_frame (struct rpc_clnt *rpc_clnt, call_frame_t *frame, - struct rpc_req *rpcreq) +static struct saved_frame * +__save_frame(struct rpc_clnt *rpc_clnt, call_frame_t *frame, + struct rpc_req *rpcreq) { - rpc_clnt_connection_t *conn = NULL; - struct timeval timeout = {0, }; - struct saved_frame *saved_frame = NULL; - - conn = &rpc_clnt->conn; - - saved_frame = __saved_frames_put (conn->saved_frames, frame, rpcreq); - - if (saved_frame == NULL) { - goto out; - } - - /* TODO: make timeout configurable */ - if (conn->timer == NULL) { - timeout.tv_sec = 10; - timeout.tv_usec = 0; - conn->timer = gf_timer_call_after (rpc_clnt->ctx, - timeout, - call_bail, - (void *) rpc_clnt); - } + rpc_clnt_connection_t *conn = &rpc_clnt->conn; + struct timespec timeout = { + 0, + }; + struct saved_frame *saved_frame = __saved_frames_put(conn->saved_frames, + frame, rpcreq); + + if (saved_frame == NULL) { + goto out; + } + + /* TODO: make timeout configurable */ + if (conn->timer == NULL) { + timeout.tv_sec = 10; + timeout.tv_nsec = 0; + rpc_clnt_ref(rpc_clnt); + conn->timer = gf_timer_call_after(rpc_clnt->ctx, timeout, call_bail, + (void *)rpc_clnt); + } out: - return saved_frame; + return saved_frame; } - struct saved_frames * -saved_frames_new (void) +saved_frames_new(void) { - struct saved_frames *saved_frames = NULL; + struct saved_frames *saved_frames = NULL; - saved_frames = GF_CALLOC (1, sizeof (*saved_frames), - gf_common_mt_rpcclnt_savedframe_t); - if (!saved_frames) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "out of memory"); - return NULL; - } + saved_frames = GF_CALLOC(1, sizeof(*saved_frames), + gf_common_mt_rpcclnt_savedframe_t); + if (!saved_frames) { + return NULL; + } - INIT_LIST_HEAD (&saved_frames->sf.list); + INIT_LIST_HEAD(&saved_frames->sf.list); + INIT_LIST_HEAD(&saved_frames->lk_sf.list); - return saved_frames; + return saved_frames; } - int -__saved_frame_copy (struct saved_frames *frames, int64_t callid, - struct saved_frame *saved_frame) +__saved_frame_copy(struct saved_frames *frames, int64_t callid, + struct saved_frame *saved_frame) { - struct saved_frame *tmp = NULL; - int ret = -1; + struct saved_frame *tmp = NULL; + int ret = -1; + + if (!saved_frame) { + ret = 0; + goto out; + } - if (!saved_frame) { - ret = 0; - goto out; + list_for_each_entry(tmp, &frames->sf.list, list) + { + if (tmp->rpcreq->xid == callid) { + *saved_frame = *tmp; + ret = 0; + goto out; } + } - list_for_each_entry (tmp, &frames->sf.list, list) { - if (tmp->rpcreq->xid == callid) { - *saved_frame = *tmp; - ret = 0; - break; - } - } + list_for_each_entry(tmp, &frames->lk_sf.list, list) + { + if (tmp->rpcreq->xid == callid) { + *saved_frame = *tmp; + ret = 0; + goto out; + } + } out: - return ret; + return ret; } - struct saved_frame * -__saved_frame_get (struct saved_frames *frames, int64_t callid) +__saved_frame_get(struct saved_frames *frames, int64_t callid) { - struct saved_frame *saved_frame = NULL; - struct saved_frame *tmp = NULL; - - list_for_each_entry (tmp, &frames->sf.list, list) { - if (tmp->rpcreq->xid == callid) { - list_del_init (&tmp->list); - frames->count--; - saved_frame = tmp; - break; - } - } - - if (saved_frame) { - THIS = saved_frame->capital_this; + struct saved_frame *saved_frame = NULL; + struct saved_frame *tmp = NULL; + + list_for_each_entry(tmp, &frames->sf.list, list) + { + if (tmp->rpcreq->xid == callid) { + list_del_init(&tmp->list); + frames->count--; + saved_frame = tmp; + goto out; + } + } + + list_for_each_entry(tmp, &frames->lk_sf.list, list) + { + if (tmp->rpcreq->xid == callid) { + list_del_init(&tmp->list); + frames->count--; + saved_frame = tmp; + goto out; } + } + +out: + if (saved_frame) { + THIS = saved_frame->capital_this; + } - return saved_frame; + return saved_frame; } void -saved_frames_unwind (struct saved_frames *saved_frames) +saved_frames_unwind(struct saved_frames *saved_frames) { - struct saved_frame *trav = NULL; - struct saved_frame *tmp = NULL; - struct tm *frame_sent_tm = NULL; - char timestr[256] = {0,}; - - struct iovec iov = {0,}; - - list_for_each_entry_safe (trav, tmp, &saved_frames->sf.list, list) { - frame_sent_tm = localtime (&trav->saved_at.tv_sec); - strftime (timestr, sizeof(timestr), "%Y-%m-%d %H:%M:%S", - frame_sent_tm); - snprintf (timestr + strlen (timestr), - sizeof(timestr) - strlen (timestr), - ".%"GF_PRI_SUSECONDS, trav->saved_at.tv_usec); - - gf_log ("rpc-clnt", GF_LOG_ERROR, - "forced unwinding frame type(%s) op(%s(%d)) " - "called at %s", - trav->rpcreq->prog->progname, - (trav->rpcreq->prog->procnames) ? - trav->rpcreq->prog->procnames[trav->rpcreq->procnum] - : "--", - trav->rpcreq->procnum, timestr); - - saved_frames->count--; - - trav->rpcreq->rpc_status = -1; - trav->rpcreq->cbkfn (trav->rpcreq, &iov, 1, trav->frame); - rpc_clnt_reply_deinit (trav->rpcreq, - trav->rpcreq->conn->rpc_clnt->reqpool); - - list_del_init (&trav->list); - mem_put (trav->rpcreq->conn->rpc_clnt->saved_frames_pool, trav); - } + struct saved_frame *trav = NULL; + struct saved_frame *tmp = NULL; + char timestr[GF_TIMESTR_SIZE] = { + 0, + }; + + list_splice_init(&saved_frames->lk_sf.list, &saved_frames->sf.list); + + list_for_each_entry_safe(trav, tmp, &saved_frames->sf.list, list) + { + gf_time_fmt_tv(timestr, sizeof timestr, &trav->saved_at, gf_timefmt_FT); + + if (!trav->rpcreq || !trav->rpcreq->prog) + continue; + + gf_log_callingfn( + trav->rpcreq->conn->name, GF_LOG_ERROR, + "forced unwinding frame type(%s) op(%s(%d)) " + "called at %s (xid=0x%x)", + trav->rpcreq->prog->progname, + ((trav->rpcreq->prog->procnames) + ? trav->rpcreq->prog->procnames[trav->rpcreq->procnum] + : "--"), + trav->rpcreq->procnum, timestr, trav->rpcreq->xid); + saved_frames->count--; + + trav->rpcreq->rpc_status = -1; + trav->rpcreq->cbkfn(trav->rpcreq, NULL, 0, trav->frame); + + rpc_clnt_reply_deinit(trav->rpcreq, + trav->rpcreq->conn->rpc_clnt->reqpool); + + list_del_init(&trav->list); + mem_put(trav); + } } - void -saved_frames_destroy (struct saved_frames *frames) +saved_frames_destroy(struct saved_frames *frames) { - if (!frames) - return; + if (!frames) + return; - saved_frames_unwind (frames); + saved_frames_unwind(frames); - GF_FREE (frames); + GF_FREE(frames); } - void -rpc_clnt_reconnect (void *trans_ptr) +rpc_clnt_reconnect(void *conn_ptr) { - rpc_transport_t *trans = NULL; - rpc_clnt_connection_t *conn = NULL; - struct timeval tv = {0, 0}; - int32_t ret = 0; - struct rpc_clnt *clnt = NULL; - - trans = trans_ptr; - if (!trans || !trans->mydata) - return; - - conn = trans->mydata; - clnt = conn->rpc_clnt; - - pthread_mutex_lock (&conn->lock); - { - if (conn->reconnect) - gf_timer_call_cancel (clnt->ctx, - conn->reconnect); - conn->reconnect = 0; - - if (conn->connected == 0) { - tv.tv_sec = 3; - - gf_log (trans->name, GF_LOG_TRACE, - "attempting reconnect"); - ret = rpc_transport_connect (trans, conn->config.remote_port); - - conn->reconnect = - gf_timer_call_after (clnt->ctx, tv, - rpc_clnt_reconnect, - trans); - } else { - gf_log (trans->name, GF_LOG_TRACE, - "breaking reconnect chain"); - } - } - pthread_mutex_unlock (&conn->lock); - - if ((ret == -1) && (errno != EINPROGRESS) && (clnt->notifyfn)) { - clnt->notifyfn (clnt, clnt->mydata, RPC_CLNT_DISCONNECT, NULL); - } - - return; + rpc_transport_t *trans = NULL; + rpc_clnt_connection_t *conn = NULL; + struct timespec ts = {0, 0}; + struct rpc_clnt *clnt = NULL; + gf_boolean_t need_unref = _gf_false; + gf_boolean_t canceled_unref = _gf_false; + + conn = conn_ptr; + clnt = conn->rpc_clnt; + pthread_mutex_lock(&conn->lock); + { + trans = conn->trans; + if (!trans) + goto out_unlock; + + if (conn->reconnect) { + if (!gf_timer_call_cancel(clnt->ctx, conn->reconnect)) + canceled_unref = _gf_true; + } + conn->reconnect = 0; + + if ((conn->connected == 0) && !clnt->disabled) { + ts.tv_sec = 3; + ts.tv_nsec = 0; + + gf_log(conn->name, GF_LOG_TRACE, "attempting reconnect"); + (void)rpc_transport_connect(trans, conn->config.remote_port); + rpc_clnt_ref(clnt); + conn->reconnect = gf_timer_call_after(clnt->ctx, ts, + rpc_clnt_reconnect, conn); + if (!conn->reconnect) { + need_unref = _gf_true; + gf_log(conn->name, GF_LOG_ERROR, + "Error adding to timer event queue"); + } + } else { + gf_log(conn->name, GF_LOG_TRACE, "breaking reconnect chain"); + } + } +out_unlock: + pthread_mutex_unlock(&conn->lock); + + rpc_clnt_unref(clnt); + if (need_unref) + rpc_clnt_unref(clnt); + if (canceled_unref) + rpc_clnt_unref(clnt); + return; } - int -rpc_clnt_fill_request_info (struct rpc_clnt *clnt, rpc_request_info_t *info) +rpc_clnt_fill_request_info(struct rpc_clnt *clnt, rpc_request_info_t *info) { - struct saved_frame saved_frame = {{}, 0}; - int ret = -1; - - pthread_mutex_lock (&clnt->conn.lock); - { - ret = __saved_frame_copy (clnt->conn.saved_frames, info->xid, - &saved_frame); - } - pthread_mutex_unlock (&clnt->conn.lock); - - if (ret == -1) { - gf_log ("rpc-clnt", GF_LOG_CRITICAL, "cannot lookup the saved " - "frame corresponding to xid (%d) for msg arrived on " - "transport %s", - info->xid, clnt->conn.trans->name); - goto out; - } - - info->prognum = saved_frame.rpcreq->prog->prognum; - info->procnum = saved_frame.rpcreq->procnum; - info->progver = saved_frame.rpcreq->prog->progver; - info->rpc_req = saved_frame.rpcreq; - info->rsp = saved_frame.rsp; - - ret = 0; + struct saved_frame saved_frame; + int ret = -1; + + pthread_mutex_lock(&clnt->conn.lock); + { + ret = __saved_frame_copy(clnt->conn.saved_frames, info->xid, + &saved_frame); + } + pthread_mutex_unlock(&clnt->conn.lock); + + if (ret == -1) { + gf_log(clnt->conn.name, GF_LOG_CRITICAL, + "cannot lookup the saved " + "frame corresponding to xid (%d)", + info->xid); + goto out; + } + + info->prognum = saved_frame.rpcreq->prog->prognum; + info->procnum = saved_frame.rpcreq->procnum; + info->progver = saved_frame.rpcreq->prog->progver; + info->rpc_req = saved_frame.rpcreq; + info->rsp = saved_frame.rsp; + + ret = 0; out: - return ret; + return ret; } int -rpc_clnt_reconnect_cleanup (rpc_clnt_connection_t *conn) +rpc_clnt_reconnect_cleanup(rpc_clnt_connection_t *conn) { - struct rpc_clnt *clnt = NULL; + struct rpc_clnt *clnt = NULL; + int ret = 0; + gf_boolean_t reconnect_unref = _gf_false; - if (!conn) { - goto out; - } + if (!conn) { + goto out; + } - clnt = conn->rpc_clnt; - - pthread_mutex_lock (&conn->lock); - { - - if (conn->reconnect) { - gf_timer_call_cancel (clnt->ctx, conn->reconnect); - conn->reconnect = NULL; - } + clnt = conn->rpc_clnt; + pthread_mutex_lock(&conn->lock); + { + if (conn->reconnect) { + ret = gf_timer_call_cancel(clnt->ctx, conn->reconnect); + if (!ret) { + reconnect_unref = _gf_true; + conn->cleanup_gen++; + } + conn->reconnect = NULL; } + } + pthread_mutex_unlock(&conn->lock); + + if (reconnect_unref) + rpc_clnt_unref(clnt); out: - return 0; + return 0; } /* @@ -468,39 +483,62 @@ out: * */ int -rpc_clnt_connection_cleanup (rpc_clnt_connection_t *conn) +rpc_clnt_connection_cleanup(rpc_clnt_connection_t *conn) { - struct saved_frames *saved_frames = NULL; - struct rpc_clnt *clnt = NULL; - - if (!conn) { - goto out; - } - - clnt = conn->rpc_clnt; - - gf_log ("rpc-clnt", GF_LOG_DEBUG, - "cleaning up state in transport object %p", conn->trans); - - pthread_mutex_lock (&conn->lock); - { - saved_frames = conn->saved_frames; - conn->saved_frames = saved_frames_new (); - - /* bailout logic cleanup */ - if (conn->timer) { - gf_timer_call_cancel (clnt->ctx, conn->timer); - conn->timer = NULL; - } - - conn->connected = 0; - } - pthread_mutex_unlock (&conn->lock); - - saved_frames_destroy (saved_frames); - + struct saved_frames *saved_frames = NULL; + struct rpc_clnt *clnt = NULL; + int unref = 0; + int ret = 0; + gf_boolean_t timer_unref = _gf_false; + gf_boolean_t reconnect_unref = _gf_false; + + if (!conn) { + goto out; + } + + clnt = conn->rpc_clnt; + + pthread_mutex_lock(&conn->lock); + { + saved_frames = conn->saved_frames; + conn->saved_frames = saved_frames_new(); + + /* bailout logic cleanup */ + if (conn->timer) { + ret = gf_timer_call_cancel(clnt->ctx, conn->timer); + if (!ret) + timer_unref = _gf_true; + conn->timer = NULL; + } + if (conn->reconnect) { + ret = gf_timer_call_cancel(clnt->ctx, conn->reconnect); + if (!ret) + reconnect_unref = _gf_true; + conn->reconnect = NULL; + } + + conn->connected = 0; + conn->disconnected = 1; + + unref = rpc_clnt_remove_ping_timer_locked(clnt); + /*reset rpc msgs stats*/ + conn->pingcnt = 0; + conn->msgcnt = 0; + conn->cleanup_gen++; + } + pthread_mutex_unlock(&conn->lock); + + saved_frames_destroy(saved_frames); + if (unref) + rpc_clnt_unref(clnt); + + if (timer_unref) + rpc_clnt_unref(clnt); + + if (reconnect_unref) + rpc_clnt_unref(clnt); out: - return 0; + return 0; } /* @@ -512,908 +550,1430 @@ out: */ static struct saved_frame * -lookup_frame (rpc_clnt_connection_t *conn, int64_t callid) +lookup_frame(rpc_clnt_connection_t *conn, int64_t callid) { - struct saved_frame *frame = NULL; + struct saved_frame *frame = NULL; - pthread_mutex_lock (&conn->lock); - { - frame = __saved_frame_get (conn->saved_frames, callid); - } - pthread_mutex_unlock (&conn->lock); + pthread_mutex_lock(&conn->lock); + { + frame = __saved_frame_get(conn->saved_frames, callid); + } + pthread_mutex_unlock(&conn->lock); - return frame; + return frame; } - int -rpc_clnt_reply_fill (rpc_transport_pollin_t *msg, - rpc_clnt_connection_t *conn, - struct rpc_msg *replymsg, struct iovec progmsg, - struct rpc_req *req, - struct saved_frame *saved_frame) +rpc_clnt_reply_fill(rpc_transport_pollin_t *msg, rpc_clnt_connection_t *conn, + struct rpc_msg *replymsg, struct iovec progmsg, + struct rpc_req *req, struct saved_frame *saved_frame) { - int ret = -1; - - if ((!conn) || (!replymsg)|| (!req) || (!saved_frame) || (!msg)) { - goto out; - } - - req->rpc_status = 0; - if ((rpc_reply_status (replymsg) == MSG_DENIED) - || (rpc_accepted_reply_status (replymsg) != SUCCESS)) { - req->rpc_status = -1; - } - - req->rsp[0] = progmsg; - req->rsp_iobref = iobref_ref (msg->iobref); - - if (msg->vectored) { - req->rsp[1] = msg->vector[1]; - req->rspcnt = 2; - } else { - req->rspcnt = 1; - } - - /* By this time, the data bytes for the auth scheme would have already - * been copied into the required sections of the req structure, - * we just need to fill in the meta-data about it now. + int ret = -1; + + if ((!conn) || (!replymsg) || (!req) || (!saved_frame) || (!msg)) { + goto out; + } + + req->rpc_status = 0; + if ((rpc_reply_status(replymsg) == MSG_DENIED) || + (rpc_accepted_reply_status(replymsg) != SUCCESS)) { + req->rpc_status = -1; + } + + req->rsp[0] = progmsg; + req->rsp_iobref = iobref_ref(msg->iobref); + + if (msg->vectored) { + req->rsp[1] = msg->vector[1]; + req->rspcnt = 2; + } else { + req->rspcnt = 1; + } + + /* By this time, the data bytes for the auth scheme would have already + * been copied into the required sections of the req structure, + * we just need to fill in the meta-data about it now. + */ + if (req->rpc_status == 0) { + /* + * req->verf.flavour = rpc_reply_verf_flavour (replymsg); + * req->verf.datalen = rpc_reply_verf_len (replymsg); */ - if (req->rpc_status == 0) { - /* - * req->verf.flavour = rpc_reply_verf_flavour (replymsg); - * req->verf.datalen = rpc_reply_verf_len (replymsg); - */ - } + } - ret = 0; + ret = 0; out: - return ret; + return ret; } - void -rpc_clnt_reply_deinit (struct rpc_req *req, struct mem_pool *pool) +rpc_clnt_reply_deinit(struct rpc_req *req, struct mem_pool *pool) { - if (!req) { - goto out; - } + if (!req) { + goto out; + } - if (req->rsp_iobref) { - iobref_unref (req->rsp_iobref); - } + if (req->rsp_iobref) { + iobref_unref(req->rsp_iobref); + } - mem_put (pool, req); + mem_put(req); out: - return; + return; } - /* TODO: use mem-pool for allocating requests */ int -rpc_clnt_reply_init (rpc_clnt_connection_t *conn, rpc_transport_pollin_t *msg, - struct rpc_req *req, struct saved_frame *saved_frame) +rpc_clnt_reply_init(rpc_clnt_connection_t *conn, rpc_transport_pollin_t *msg, + struct rpc_req *req, struct saved_frame *saved_frame) { - char *msgbuf = NULL; - struct rpc_msg rpcmsg; - struct iovec progmsg; /* RPC Program payload */ - size_t msglen = 0; - int ret = -1; - - msgbuf = msg->vector[0].iov_base; - msglen = msg->vector[0].iov_len; - - ret = xdr_to_rpc_reply (msgbuf, msglen, &rpcmsg, &progmsg, - req->verf.authdata); - if (ret != 0) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "RPC reply decoding failed"); - goto out; - } - - ret = rpc_clnt_reply_fill (msg, conn, &rpcmsg, progmsg, req, - saved_frame); - if (ret != 0) { - goto out; - } - - gf_log ("rpc-clnt", GF_LOG_TRACE, "RPC XID: %d Program: %s," - " ProgVers: %d, Proc: %d", saved_frame->rpcreq->xid, - saved_frame->rpcreq->prog->progname, - saved_frame->rpcreq->prog->progver, - saved_frame->rpcreq->procnum); -/* TODO: */ - /* TODO: AUTH */ - /* The verifier that is sent in a reply is a string that can be used as - * a shorthand in credentials for future transactions. We can opt not to - * use this shorthand, preffering to use the original AUTH_UNIX method - * for authentication (containing all the details for authentication in - * credential itself). Hence it is not mandatory for us to be checking - * the verifier. See Appendix A of rfc-5531 for more details. - */ - - /* - * ret = rpc_authenticate (req); - * if (ret == RPC_AUTH_REJECT) { - * gf_log ("rpc-clnt", GF_LOG_ERROR, "Failed authentication"); - * ret = -1; - * goto out; - * } - */ - - /* If the error is not RPC_MISMATCH, we consider the call as accepted - * since we are not handling authentication failures for now. - */ - req->rpc_status = 0; + char *msgbuf = NULL; + struct rpc_msg rpcmsg; + struct iovec progmsg; /* RPC Program payload */ + size_t msglen = 0; + int ret = -1; + + msgbuf = msg->vector[0].iov_base; + msglen = msg->vector[0].iov_len; + + ret = xdr_to_rpc_reply(msgbuf, msglen, &rpcmsg, &progmsg, + req->verf.authdata); + if (ret != 0) { + gf_log(conn->name, GF_LOG_WARNING, "RPC reply decoding failed"); + goto out; + } + + ret = rpc_clnt_reply_fill(msg, conn, &rpcmsg, progmsg, req, saved_frame); + if (ret != 0) { + goto out; + } + + gf_log(conn->name, GF_LOG_TRACE, + "received rpc message (RPC XID: 0x%x" + " Program: %s, ProgVers: %d, Proc: %d) from rpc-transport (%s)", + saved_frame->rpcreq->xid, saved_frame->rpcreq->prog->progname, + saved_frame->rpcreq->prog->progver, saved_frame->rpcreq->procnum, + conn->name); out: - if (ret != 0) { - req->rpc_status = -1; - } + if (ret != 0) { + req->rpc_status = -1; + } - return ret; + return ret; } int -rpc_clnt_handle_cbk (struct rpc_clnt *clnt, rpc_transport_pollin_t *msg) +rpc_clnt_handle_cbk(struct rpc_clnt *clnt, rpc_transport_pollin_t *msg) { - char *msgbuf = NULL; - rpcclnt_cb_program_t *program = NULL; - struct rpc_msg rpcmsg; - struct iovec progmsg; /* RPC Program payload */ - size_t msglen = 0; - int found = 0; - int ret = -1; - int procnum = 0; - - msgbuf = msg->vector[0].iov_base; - msglen = msg->vector[0].iov_len; - - ret = xdr_to_rpc_call (msgbuf, msglen, &rpcmsg, &progmsg, NULL,NULL); - if (ret == -1) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "RPC call decoding failed"); - goto out; + char *msgbuf = NULL; + rpcclnt_cb_program_t *program = NULL; + struct rpc_msg rpcmsg; + struct iovec progmsg; /* RPC Program payload */ + size_t msglen = 0; + int found = 0; + int ret = -1; + int procnum = 0; + + msgbuf = msg->vector[0].iov_base; + msglen = msg->vector[0].iov_len; + + clnt = rpc_clnt_ref(clnt); + ret = xdr_to_rpc_call(msgbuf, msglen, &rpcmsg, &progmsg, NULL, NULL); + if (ret == -1) { + gf_log(clnt->conn.name, GF_LOG_WARNING, "RPC call decoding failed"); + goto out; + } + + gf_log(clnt->conn.name, GF_LOG_TRACE, + "receivd rpc message (XID: 0x%" GF_PRI_RPC_XID + ", " + "Ver: %" GF_PRI_RPC_VERSION ", Program: %" GF_PRI_RPC_PROG_ID + ", " + "ProgVers: %" GF_PRI_RPC_PROG_VERS ", Proc: %" GF_PRI_RPC_PROC + ") " + "from rpc-transport (%s)", + rpc_call_xid(&rpcmsg), rpc_call_rpcvers(&rpcmsg), + rpc_call_program(&rpcmsg), rpc_call_progver(&rpcmsg), + rpc_call_progproc(&rpcmsg), clnt->conn.name); + + procnum = rpc_call_progproc(&rpcmsg); + + pthread_mutex_lock(&clnt->lock); + { + list_for_each_entry(program, &clnt->programs, program) + { + if ((program->prognum == rpc_call_program(&rpcmsg)) && + (program->progver == rpc_call_progver(&rpcmsg))) { + found = 1; + break; + } } + } + pthread_mutex_unlock(&clnt->lock); - gf_log ("rpc-clnt", GF_LOG_INFO, "RPC XID: %lx, Ver: %ld, Program: %ld," - " ProgVers: %ld, Proc: %ld", rpc_call_xid (&rpcmsg), - rpc_call_rpcvers (&rpcmsg), rpc_call_program (&rpcmsg), - rpc_call_progver (&rpcmsg), rpc_call_progproc (&rpcmsg)); - - procnum = rpc_call_progproc (&rpcmsg); - - list_for_each_entry (program, &clnt->programs, program) { - if ((program->prognum == rpc_call_program (&rpcmsg)) - && (program->progver == rpc_call_progver (&rpcmsg))) { - found = 1; - break; - } - } - if (found && (procnum < program->numactors) && - (program->actors[procnum].actor)) { - program->actors[procnum].actor (&progmsg); - } + if (found && (procnum < program->numactors) && + (program->actors[procnum].actor)) { + program->actors[procnum].actor(clnt, program->mydata, &progmsg); + } out: - return ret; + rpc_clnt_unref(clnt); + return ret; } int -rpc_clnt_handle_reply (struct rpc_clnt *clnt, rpc_transport_pollin_t *pollin) +rpc_clnt_handle_reply(struct rpc_clnt *clnt, rpc_transport_pollin_t *pollin) { - rpc_clnt_connection_t *conn = NULL; - struct saved_frame *saved_frame = NULL; - int ret = -1; - struct rpc_req *req = NULL; - uint32_t xid = 0; - - conn = &clnt->conn; - - xid = ntoh32 (*((uint32_t *)pollin->vector[0].iov_base)); - saved_frame = lookup_frame (conn, xid); - if (saved_frame == NULL) { - gf_log ("rpc-clnt", GF_LOG_CRITICAL, "cannot lookup the " - "saved frame for reply with xid (%d)", xid); - goto out; - } - - req = saved_frame->rpcreq; - if (req == NULL) { - gf_log ("rpc-clnt", GF_LOG_CRITICAL, - "saved_frame for reply with xid (%d)", xid); - goto out; - } - - ret = rpc_clnt_reply_init (conn, pollin, req, saved_frame); - if (ret != 0) { - req->rpc_status = -1; - gf_log ("rpc-clnt", GF_LOG_DEBUG, "initialising rpc reply " - "failed"); - } - - req->cbkfn (req, req->rsp, req->rspcnt, saved_frame->frame); - - if (req) { - rpc_clnt_reply_deinit (req, conn->rpc_clnt->reqpool); - } + rpc_clnt_connection_t *conn = NULL; + struct saved_frame *saved_frame = NULL; + int ret = -1; + struct rpc_req *req = NULL; + uint32_t xid = 0; + + clnt = rpc_clnt_ref(clnt); + conn = &clnt->conn; + + xid = ntoh32(*((uint32_t *)pollin->vector[0].iov_base)); + saved_frame = lookup_frame(conn, xid); + if (saved_frame == NULL) { + gf_log(conn->name, GF_LOG_ERROR, + "cannot lookup the saved frame for reply with xid (%u)", xid); + goto out; + } + + req = saved_frame->rpcreq; + if (req == NULL) { + gf_log(conn->name, GF_LOG_ERROR, "no request with frame for xid (%u)", + xid); + goto out; + } + + ret = rpc_clnt_reply_init(conn, pollin, req, saved_frame); + if (ret != 0) { + req->rpc_status = -1; + gf_log(conn->name, GF_LOG_WARNING, "initialising rpc reply failed"); + } + + req->cbkfn(req, req->rsp, req->rspcnt, saved_frame->frame); + + if (req) { + rpc_clnt_reply_deinit(req, conn->rpc_clnt->reqpool); + } out: - if (saved_frame) { - mem_put (conn->rpc_clnt->saved_frames_pool, saved_frame); - } + if (saved_frame) { + mem_put(saved_frame); + } - return ret; + rpc_clnt_unref(clnt); + return ret; } - -inline void -rpc_clnt_set_connected (rpc_clnt_connection_t *conn) +gf_boolean_t +is_rpc_clnt_disconnected(rpc_clnt_connection_t *conn) { - if (!conn) { - goto out; - } + gf_boolean_t disconnected = _gf_true; - pthread_mutex_lock (&conn->lock); - { - conn->connected = 1; - } - pthread_mutex_unlock (&conn->lock); + if (!conn) + return disconnected; -out: - return; + pthread_mutex_lock(&conn->lock); + { + disconnected = conn->disconnected; + } + pthread_mutex_unlock(&conn->lock); + + return disconnected; } +static void +rpc_clnt_destroy(struct rpc_clnt *rpc); -void -rpc_clnt_unset_connected (rpc_clnt_connection_t *conn) -{ - if (!conn) { - goto out; - } +#define RPC_THIS_SAVE(xl) \ + do { \ + old_THIS = THIS; \ + if (!old_THIS) \ + gf_log_callingfn("rpc", GF_LOG_CRITICAL, \ + "THIS is not initialised."); \ + THIS = xl; \ + } while (0) - pthread_mutex_lock (&conn->lock); - { - conn->connected = 0; - } - pthread_mutex_unlock (&conn->lock); +#define RPC_THIS_RESTORE (THIS = old_THIS) -out: - return; +static int +rpc_clnt_handle_disconnect(struct rpc_clnt *clnt, rpc_clnt_connection_t *conn) +{ + struct timespec ts = { + 0, + }; + gf_boolean_t unref_clnt = _gf_false; + uint64_t pre_notify_gen = 0, post_notify_gen = 0; + + pthread_mutex_lock(&conn->lock); + { + pre_notify_gen = conn->cleanup_gen; + } + pthread_mutex_unlock(&conn->lock); + + if (clnt->notifyfn) + clnt->notifyfn(clnt, clnt->mydata, RPC_CLNT_DISCONNECT, NULL); + + pthread_mutex_lock(&conn->lock); + { + post_notify_gen = conn->cleanup_gen; + } + pthread_mutex_unlock(&conn->lock); + + if (pre_notify_gen == post_notify_gen) { + /* program didn't invoke cleanup, so rpc has to do it */ + rpc_clnt_connection_cleanup(conn); + } + + pthread_mutex_lock(&conn->lock); + { + if (!conn->rpc_clnt->disabled && (conn->reconnect == NULL)) { + ts.tv_sec = 3; + ts.tv_nsec = 0; + + rpc_clnt_ref(clnt); + conn->reconnect = gf_timer_call_after(clnt->ctx, ts, + rpc_clnt_reconnect, conn); + if (conn->reconnect == NULL) { + gf_log(conn->name, GF_LOG_WARNING, + "Cannot create rpc_clnt_reconnect timer"); + unref_clnt = _gf_true; + } + } + } + pthread_mutex_unlock(&conn->lock); + + if (unref_clnt) + rpc_clnt_unref(clnt); + + return 0; } - int -rpc_clnt_notify (rpc_transport_t *trans, void *mydata, - rpc_transport_event_t event, void *data, ...) +rpc_clnt_notify(rpc_transport_t *trans, void *mydata, + rpc_transport_event_t event, void *data, ...) { - rpc_clnt_connection_t *conn = NULL; - struct rpc_clnt *clnt = NULL; - int ret = -1; - rpc_request_info_t *req_info = NULL; - rpc_transport_pollin_t *pollin = NULL; - struct timeval tv = {0, }; - - conn = mydata; - if (conn == NULL) { - goto out; - } - clnt = conn->rpc_clnt; - if (!clnt) - goto out; - - switch (event) { - case RPC_TRANSPORT_DISCONNECT: - { - rpc_clnt_connection_cleanup (&clnt->conn); - - pthread_mutex_lock (&conn->lock); - { - if (conn->reconnect == NULL) { - tv.tv_sec = 10; - - conn->reconnect = - gf_timer_call_after (clnt->ctx, tv, - rpc_clnt_reconnect, - conn->trans); - } - } - pthread_mutex_unlock (&conn->lock); - - if (clnt->notifyfn) - ret = clnt->notifyfn (clnt, clnt->mydata, RPC_CLNT_DISCONNECT, - NULL); - break; + rpc_clnt_connection_t *conn = NULL; + struct rpc_clnt *clnt = NULL; + int ret = -1; + rpc_request_info_t *req_info = NULL; + rpc_transport_pollin_t *pollin = NULL; + void *clnt_mydata = NULL; + DECLARE_OLD_THIS; + + conn = mydata; + if (conn == NULL) { + goto out; + } + clnt = conn->rpc_clnt; + if (!clnt) + goto out; + + RPC_THIS_SAVE(clnt->owner); + + switch (event) { + case RPC_TRANSPORT_DISCONNECT: { + rpc_clnt_handle_disconnect(clnt, conn); + /* The auth_value was being reset to AUTH_GLUSTERFS_v2. + * if (clnt->auth_value) + * clnt->auth_value = AUTH_GLUSTERFS_v2; + * It should not be reset here. The disconnect during + * portmap request can race with handshake. If handshake + * happens first and disconnect later, auth_value would set + * to default value and it never sets back to actual auth_value + * supported by server. But it's important to set to lower + * version supported in the case where the server downgrades. + * So moving this code to RPC_TRANSPORT_CONNECT. Note that + * CONNECT cannot race with handshake as by nature it is + * serialized with handhake. An handshake can happen only + * on a connected transport and hence its strictly serialized. + */ + break; } case RPC_TRANSPORT_CLEANUP: - /* this event should not be received on a client for, a - * transport is only disconnected, but never destroyed. - */ - ret = 0; - break; - - case RPC_TRANSPORT_MAP_XID_REQUEST: - { - req_info = data; - ret = rpc_clnt_fill_request_info (clnt, req_info); - break; - } - - case RPC_TRANSPORT_MSG_RECEIVED: - { - pollin = data; - if (pollin->is_reply) - ret = rpc_clnt_handle_reply (clnt, pollin); - else - ret = rpc_clnt_handle_cbk (clnt, pollin); - /* ret = clnt->notifyfn (clnt, clnt->mydata, RPC_CLNT_MSG, - * data); - */ - break; - } - - case RPC_TRANSPORT_MSG_SENT: - { - pthread_mutex_lock (&conn->lock); - { - gettimeofday (&conn->last_sent, NULL); + if (clnt->notifyfn) { + clnt_mydata = clnt->mydata; + clnt->mydata = NULL; + ret = clnt->notifyfn(clnt, clnt_mydata, RPC_CLNT_DESTROY, NULL); + if (ret < 0) { + gf_log(trans->name, GF_LOG_WARNING, + "client notify handler returned error " + "while handling RPC_CLNT_DESTROY"); } - pthread_mutex_unlock (&conn->lock); + } + rpc_clnt_destroy(clnt); + ret = 0; + break; + + case RPC_TRANSPORT_MAP_XID_REQUEST: { + req_info = data; + ret = rpc_clnt_fill_request_info(clnt, req_info); + break; + } + + case RPC_TRANSPORT_MSG_RECEIVED: { + timespec_now_realtime(&conn->last_received); + + pollin = data; + if (pollin->is_reply) + ret = rpc_clnt_handle_reply(clnt, pollin); + else + ret = rpc_clnt_handle_cbk(clnt, pollin); + /* ret = clnt->notifyfn (clnt, clnt->mydata, RPC_CLNT_MSG, + * data); + */ + break; + } + + case RPC_TRANSPORT_MSG_SENT: { + timespec_now_realtime(&conn->last_sent); + ret = 0; + break; + } + + case RPC_TRANSPORT_CONNECT: { + pthread_mutex_lock(&conn->lock); + { + /* Every time there is a disconnection, processes + * should try to connect to 'glusterd' (ie, default + * port) or whichever port given as 'option remote-port' + * in volume file. */ + /* Below code makes sure the (re-)configured port lasts + * for just one successful attempt */ + conn->config.remote_port = 0; + conn->connected = 1; + conn->disconnected = 0; + pthread_cond_broadcast(&conn->cond); + } + pthread_mutex_unlock(&conn->lock); - ret = 0; - break; - } + /* auth value should be set to lower version available + * and will be set to appropriate version supported by + * server after the handshake. + */ + if (clnt->auth_value) + clnt->auth_value = AUTH_GLUSTERFS_v2; + if (clnt->notifyfn) + ret = clnt->notifyfn(clnt, clnt->mydata, RPC_CLNT_CONNECT, + NULL); - case RPC_TRANSPORT_CONNECT: - { - if (clnt->notifyfn) - ret = clnt->notifyfn (clnt, clnt->mydata, RPC_CLNT_CONNECT, NULL); - break; + break; } case RPC_TRANSPORT_ACCEPT: - /* only meaningful on a server, no need of handling this event - * in a client. - */ - ret = 0; - break; - } + /* only meaningful on a server, no need of handling this event + * in a client. + */ + ret = 0; + break; + + case RPC_TRANSPORT_EVENT_THREAD_DIED: + /* only meaningful on a server, no need of handling this event on a + * client */ + ret = 0; + break; + } out: - return ret; + RPC_THIS_RESTORE; + return ret; } - -void -rpc_clnt_connection_deinit (rpc_clnt_connection_t *conn) +static int +rpc_clnt_connection_init(struct rpc_clnt *clnt, glusterfs_ctx_t *ctx, + dict_t *options, char *name) { - return; -} + int ret = -1; + rpc_clnt_connection_t *conn = NULL; + rpc_transport_t *trans = NULL; + + conn = &clnt->conn; + pthread_mutex_init(&clnt->conn.lock, NULL); + pthread_cond_init(&clnt->conn.cond, NULL); + + conn->name = gf_strdup(name); + if (!conn->name) { + ret = -1; + goto out; + } + + ret = dict_get_int32(options, "frame-timeout", &conn->frame_timeout); + if (ret >= 0) { + gf_log(name, GF_LOG_INFO, "setting frame-timeout to %d", + conn->frame_timeout); + } else { + gf_log(name, GF_LOG_DEBUG, "defaulting frame-timeout to 30mins"); + conn->frame_timeout = 1800; + } + conn->rpc_clnt = clnt; + + ret = dict_get_int32(options, "ping-timeout", &conn->ping_timeout); + if (ret >= 0) { + gf_log(name, GF_LOG_DEBUG, "setting ping-timeout to %d", + conn->ping_timeout); + } else { + /*TODO: Once the epoll thread model is fixed, + change the default ping-timeout to 30sec */ + gf_log(name, GF_LOG_DEBUG, "disable ping-timeout"); + conn->ping_timeout = 0; + } + + trans = rpc_transport_load(ctx, options, name); + if (!trans) { + gf_log(name, GF_LOG_WARNING, + "loading of new rpc-transport" + " failed"); + ret = -1; + goto out; + } + rpc_transport_ref(trans); + + pthread_mutex_lock(&conn->lock); + { + conn->trans = trans; + trans = NULL; + } + pthread_mutex_unlock(&conn->lock); + + ret = rpc_transport_register_notify(conn->trans, rpc_clnt_notify, conn); + if (ret == -1) { + gf_log(name, GF_LOG_WARNING, "registering notify failed"); + goto out; + } + + conn->saved_frames = saved_frames_new(); + if (!conn->saved_frames) { + gf_log(name, GF_LOG_WARNING, + "creation of saved_frames " + "failed"); + ret = -1; + goto out; + } + + ret = 0; +out: + if (ret) { + pthread_mutex_lock(&conn->lock); + { + trans = conn->trans; + conn->trans = NULL; + } + pthread_mutex_unlock(&conn->lock); + if (trans) + rpc_transport_unref(trans); + // conn cleanup needs to be done since we might have failed to + // register notification. + rpc_clnt_connection_cleanup(conn); + } + return ret; +} -inline int -rpc_clnt_connection_init (struct rpc_clnt *clnt, glusterfs_ctx_t *ctx, - dict_t *options, char *name) +struct rpc_clnt * +rpc_clnt_new(dict_t *options, xlator_t *owner, char *name, + uint32_t reqpool_size) { - int ret = -1; - rpc_clnt_connection_t *conn = NULL; + int ret = -1; + struct rpc_clnt *rpc = NULL; + glusterfs_ctx_t *ctx = owner->ctx; + + rpc = GF_CALLOC(1, sizeof(*rpc), gf_common_mt_rpcclnt_t); + if (!rpc) { + goto out; + } + + pthread_mutex_init(&rpc->lock, NULL); + rpc->ctx = ctx; + rpc->owner = owner; + GF_ATOMIC_INIT(rpc->xid, 1); + + if (!reqpool_size) + reqpool_size = RPC_CLNT_DEFAULT_REQUEST_COUNT; + + rpc->reqpool = mem_pool_new(struct rpc_req, reqpool_size); + if (rpc->reqpool == NULL) { + pthread_mutex_destroy(&rpc->lock); + GF_FREE(rpc); + rpc = NULL; + goto out; + } + + rpc->saved_frames_pool = mem_pool_new(struct saved_frame, reqpool_size); + if (rpc->saved_frames_pool == NULL) { + pthread_mutex_destroy(&rpc->lock); + mem_pool_destroy(rpc->reqpool); + GF_FREE(rpc); + rpc = NULL; + goto out; + } + + ret = rpc_clnt_connection_init(rpc, ctx, options, name); + if (ret == -1) { + pthread_mutex_destroy(&rpc->lock); + mem_pool_destroy(rpc->reqpool); + mem_pool_destroy(rpc->saved_frames_pool); + GF_FREE(rpc); + rpc = NULL; + goto out; + } + + /* This is handled to make sure we have modularity in getting the + auth data changed */ + gf_boolean_t auth_null = dict_get_str_boolean(options, "auth-null", 0); + + rpc->auth_value = (auth_null) ? 0 : AUTH_GLUSTERFS_v2; + + rpc = rpc_clnt_ref(rpc); + INIT_LIST_HEAD(&rpc->programs); - conn = &clnt->conn; - pthread_mutex_init (&clnt->conn.lock, NULL); - - ret = dict_get_int32 (options, "frame-timeout", - &conn->frame_timeout); - if (ret >= 0) { - gf_log (name, GF_LOG_DEBUG, - "setting frame-timeout to %d", conn->frame_timeout); - } else { - gf_log (name, GF_LOG_DEBUG, - "defaulting frame-timeout to 30mins"); - conn->frame_timeout = 1800; - } - - conn->trans = rpc_transport_load (ctx, options, name); - if (!conn->trans) { - gf_log ("rpc-clnt", GF_LOG_DEBUG, "loading of new rpc-transport" - " failed"); - goto out; - } - - rpc_transport_ref (conn->trans); - - conn->rpc_clnt = clnt; +out: + return rpc; +} - ret = rpc_transport_register_notify (conn->trans, rpc_clnt_notify, - conn); - if (ret == -1) { - gf_log ("rpc-clnt", GF_LOG_DEBUG, "registering notify failed"); - rpc_clnt_connection_cleanup (conn); - conn = NULL; - goto out; - } +int +rpc_clnt_start(struct rpc_clnt *rpc) +{ + struct rpc_clnt_connection *conn = NULL; - conn->saved_frames = saved_frames_new (); - if (!conn->saved_frames) { - gf_log ("rpc-clnt", GF_LOG_DEBUG, "creation of saved_frames " - "failed"); - rpc_clnt_connection_cleanup (conn); - goto out; - } + if (!rpc) + return -1; - rpc_clnt_reconnect (conn->trans); + conn = &rpc->conn; - ret = 0; + pthread_mutex_lock(&conn->lock); + { + rpc->disabled = 0; + } + pthread_mutex_unlock(&conn->lock); + /* Corresponding unref will be either on successful timer cancel or last + * rpc_clnt_reconnect fire event. + */ + rpc_clnt_ref(rpc); + rpc_clnt_reconnect(conn); -out: - return ret; + return 0; } - -struct rpc_clnt * -rpc_clnt_init (struct rpc_clnt_config *config, dict_t *options, - glusterfs_ctx_t *ctx, char *name) +int +rpc_clnt_cleanup_and_start(struct rpc_clnt *rpc) { - int ret = -1; - struct rpc_clnt *rpc = NULL; + struct rpc_clnt_connection *conn = NULL; - rpc = GF_CALLOC (1, sizeof (*rpc), gf_common_mt_rpcclnt_t); - if (!rpc) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "out of memory"); - goto out; - } + if (!rpc) + return -1; - pthread_mutex_init (&rpc->lock, NULL); - rpc->ctx = ctx; + conn = &rpc->conn; - rpc->reqpool = mem_pool_new (struct rpc_req, - RPC_CLNT_DEFAULT_REQUEST_COUNT); - if (rpc->reqpool == NULL) { - pthread_mutex_destroy (&rpc->lock); - GF_FREE (rpc); - rpc = NULL; - goto out; - } - - rpc->saved_frames_pool = mem_pool_new (struct saved_frame, - RPC_CLNT_DEFAULT_REQUEST_COUNT); - if (rpc->saved_frames_pool == NULL) { - pthread_mutex_destroy (&rpc->lock); - mem_pool_destroy (rpc->reqpool); - GF_FREE (rpc); - rpc = NULL; - goto out; - } - - ret = rpc_clnt_connection_init (rpc, ctx, options, name); - if (ret == -1) { - pthread_mutex_destroy (&rpc->lock); - GF_FREE (rpc); - rpc = NULL; - goto out; - } + rpc_clnt_connection_cleanup(conn); - INIT_LIST_HEAD (&rpc->programs); + pthread_mutex_lock(&conn->lock); + { + rpc->disabled = 0; + } + pthread_mutex_unlock(&conn->lock); + /* Corresponding unref will be either on successful timer cancel or last + * rpc_clnt_reconnect fire event. + */ + rpc_clnt_ref(rpc); + rpc_clnt_reconnect(conn); -out: - return rpc; + return 0; } - int -rpc_clnt_register_notify (struct rpc_clnt *rpc, rpc_clnt_notify_t fn, - void *mydata) +rpc_clnt_register_notify(struct rpc_clnt *rpc, rpc_clnt_notify_t fn, + void *mydata) { - rpc->mydata = mydata; - rpc->notifyfn = fn; + rpc->mydata = mydata; + rpc->notifyfn = fn; - return 0; + return 0; } -ssize_t -xdr_serialize_glusterfs_auth (char *dest, struct auth_glusterfs_parms *au) -{ - ssize_t ret = -1; - XDR xdr; +/* used for GF_LOG_OCCASIONALLY() */ +static int gf_auth_max_groups_log = 0; - if ((!dest) || (!au)) - return -1; - - xdrmem_create (&xdr, dest, 1024, - XDR_ENCODE); +static inline int +setup_glusterfs_auth_param_v3(call_frame_t *frame, auth_glusterfs_params_v3 *au, + int lk_owner_len, char *owner_data) +{ + int ret = -1; + unsigned int max_groups = 0; + int max_lkowner_len = 0; + + au->pid = frame->root->pid; + au->uid = frame->root->uid; + au->gid = frame->root->gid; + + au->flags = frame->root->flags; + au->ctime_sec = frame->root->ctime.tv_sec; + au->ctime_nsec = frame->root->ctime.tv_nsec; + + au->lk_owner.lk_owner_val = owner_data; + au->lk_owner.lk_owner_len = lk_owner_len; + au->groups.groups_val = frame->root->groups; + au->groups.groups_len = frame->root->ngrps; + + /* The number of groups and the size of lk_owner depend on oneother. + * We can truncate the groups, but should not touch the lk_owner. */ + max_groups = GF_AUTH_GLUSTERFS_MAX_GROUPS(lk_owner_len, AUTH_GLUSTERFS_v3); + if (au->groups.groups_len > max_groups) { + GF_LOG_OCCASIONALLY(gf_auth_max_groups_log, "rpc-auth", GF_LOG_WARNING, + "truncating grouplist " + "from %d to %d", + au->groups.groups_len, max_groups); + + au->groups.groups_len = max_groups; + } + + max_lkowner_len = GF_AUTH_GLUSTERFS_MAX_LKOWNER(au->groups.groups_len, + AUTH_GLUSTERFS_v3); + if (lk_owner_len > max_lkowner_len) { + gf_log("rpc-clnt", GF_LOG_ERROR, + "lkowner field is too " + "big (%d), it does not fit in the rpc-header", + au->lk_owner.lk_owner_len); + errno = E2BIG; + goto out; + } + + ret = 0; +out: + return ret; +} - if (!xdr_auth_glusterfs_parms (&xdr, au)) { - ret = -1; - goto ret; - } +static inline int +setup_glusterfs_auth_param_v2(call_frame_t *frame, auth_glusterfs_parms_v2 *au, + int lk_owner_len, char *owner_data) +{ + unsigned int max_groups = 0; + int max_lkowner_len = 0; + int ret = -1; + + au->pid = frame->root->pid; + au->uid = frame->root->uid; + au->gid = frame->root->gid; + + au->lk_owner.lk_owner_val = owner_data; + au->lk_owner.lk_owner_len = lk_owner_len; + au->groups.groups_val = frame->root->groups; + au->groups.groups_len = frame->root->ngrps; + + /* The number of groups and the size of lk_owner depend on oneother. + * We can truncate the groups, but should not touch the lk_owner. */ + max_groups = GF_AUTH_GLUSTERFS_MAX_GROUPS(lk_owner_len, AUTH_GLUSTERFS_v2); + if (au->groups.groups_len > max_groups) { + GF_LOG_OCCASIONALLY(gf_auth_max_groups_log, "rpc-auth", GF_LOG_WARNING, + "truncating grouplist " + "from %d to %d", + au->groups.groups_len, max_groups); + + au->groups.groups_len = max_groups; + } + + max_lkowner_len = GF_AUTH_GLUSTERFS_MAX_LKOWNER(au->groups.groups_len, + AUTH_GLUSTERFS_v2); + if (lk_owner_len > max_lkowner_len) { + gf_log("rpc-auth", GF_LOG_ERROR, + "lkowner field is too " + "big (%d), it does not fit in the rpc-header", + au->lk_owner.lk_owner_len); + errno = E2BIG; + goto out; + } + + ret = 0; +out: + return ret; +} - ret = (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base)); +static ssize_t +xdr_serialize_glusterfs_auth(struct rpc_clnt *clnt, call_frame_t *frame, + char *dest) +{ + ssize_t ret = -1; + XDR xdr; + char owner[4] = { + 0, + }; + int32_t pid = 0; + char *lk_owner_data = NULL; + int lk_owner_len = 0; + + if ((!dest)) + return -1; + + xdrmem_create(&xdr, dest, GF_MAX_AUTH_BYTES, XDR_ENCODE); + + if (frame->root->lk_owner.len) { + lk_owner_data = frame->root->lk_owner.data; + lk_owner_len = frame->root->lk_owner.len; + } else { + pid = frame->root->pid; + owner[0] = (char)(pid & 0xff); + owner[1] = (char)((pid >> 8) & 0xff); + owner[2] = (char)((pid >> 16) & 0xff); + owner[3] = (char)((pid >> 24) & 0xff); + + lk_owner_data = owner; + lk_owner_len = 4; + } + + if (clnt->auth_value == AUTH_GLUSTERFS_v2) { + auth_glusterfs_parms_v2 au_v2 = { + 0, + }; + + ret = setup_glusterfs_auth_param_v2(frame, &au_v2, lk_owner_len, + lk_owner_data); + if (ret) + goto out; + if (!xdr_auth_glusterfs_parms_v2(&xdr, &au_v2)) { + gf_log(THIS->name, GF_LOG_WARNING, + "failed to encode auth glusterfs elements"); + ret = -1; + goto out; + } + } else if (clnt->auth_value == AUTH_GLUSTERFS_v3) { + auth_glusterfs_params_v3 au_v3 = { + 0, + }; + + ret = setup_glusterfs_auth_param_v3(frame, &au_v3, lk_owner_len, + lk_owner_data); + if (ret) + goto out; + + if (!xdr_auth_glusterfs_params_v3(&xdr, &au_v3)) { + gf_log(THIS->name, GF_LOG_WARNING, + "failed to encode auth glusterfs elements"); + ret = -1; + goto out; + } + } else { + gf_log(THIS->name, GF_LOG_WARNING, + "failed to encode auth glusterfs elements"); + ret = -1; + goto out; + } + + ret = (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base)); -ret: - return ret; +out: + return ret; } - int -rpc_clnt_fill_request (int prognum, int progver, int procnum, int payload, - uint64_t xid, struct auth_glusterfs_parms *au, - struct rpc_msg *request, char *auth_data) +rpc_clnt_fill_request(struct rpc_clnt *clnt, int prognum, int progver, + int procnum, uint64_t xid, call_frame_t *fr, + struct rpc_msg *request, char *auth_data) { - int ret = -1; + int ret = -1; - if (!request) { - goto out; - } + if (!request) { + goto out; + } - memset (request, 0, sizeof (*request)); + memset(request, 0, sizeof(*request)); - request->rm_xid = xid; - request->rm_direction = CALL; + request->rm_xid = xid; + request->rm_direction = CALL; - request->rm_call.cb_rpcvers = 2; - request->rm_call.cb_prog = prognum; - request->rm_call.cb_vers = progver; - request->rm_call.cb_proc = procnum; + request->rm_call.cb_rpcvers = 2; + request->rm_call.cb_prog = prognum; + request->rm_call.cb_vers = progver; + request->rm_call.cb_proc = procnum; - /* TODO: Using AUTH_GLUSTERFS for time-being. Make it modular in - * future so it is easy to plug-in new authentication schemes. - */ - ret = xdr_serialize_glusterfs_auth (auth_data, au); + if (!clnt->auth_value) { + request->rm_call.cb_cred.oa_flavor = AUTH_NULL; + request->rm_call.cb_cred.oa_base = NULL; + request->rm_call.cb_cred.oa_length = 0; + } else { + ret = xdr_serialize_glusterfs_auth(clnt, fr, auth_data); if (ret == -1) { - gf_log ("rpc-clnt", GF_LOG_DEBUG, "cannot encode credentials"); - goto out; + gf_log("rpc-clnt", GF_LOG_WARNING, + "cannot encode auth credentials"); + goto out; } - request->rm_call.cb_cred.oa_flavor = AUTH_GLUSTERFS; - request->rm_call.cb_cred.oa_base = auth_data; + request->rm_call.cb_cred.oa_flavor = clnt->auth_value; + request->rm_call.cb_cred.oa_base = auth_data; request->rm_call.cb_cred.oa_length = ret; + } + request->rm_call.cb_verf.oa_flavor = AUTH_NONE; + request->rm_call.cb_verf.oa_base = NULL; + request->rm_call.cb_verf.oa_length = 0; - request->rm_call.cb_verf.oa_flavor = AUTH_NONE; - request->rm_call.cb_verf.oa_base = NULL; - request->rm_call.cb_verf.oa_length = 0; - - ret = 0; + ret = 0; out: - return ret; + return ret; } - struct iovec -rpc_clnt_record_build_header (char *recordstart, size_t rlen, - struct rpc_msg *request, size_t payload) +rpc_clnt_record_build_header(char *recordstart, size_t rlen, + struct rpc_msg *request, size_t payload) { - struct iovec requesthdr = {0, }; - struct iovec txrecord = {0, 0}; - int ret = -1; - size_t fraglen = 0; - - ret = rpc_request_to_xdr (request, recordstart, rlen, &requesthdr); - if (ret == -1) { - gf_log ("rpc-clnt", GF_LOG_DEBUG, - "Failed to create RPC request"); - goto out; - } - - fraglen = payload + requesthdr.iov_len; - gf_log ("rpc-clnt", GF_LOG_TRACE, "Request fraglen %zu, payload: %zu, " - "rpc hdr: %zu", fraglen, payload, requesthdr.iov_len); - - - txrecord.iov_base = recordstart; - - /* Remember, this is only the vec for the RPC header and does not - * include the payload above. We needed the payload only to calculate - * the size of the full fragment. This size is sent in the fragment - * header. - */ - txrecord.iov_len = requesthdr.iov_len; + struct iovec requesthdr = { + 0, + }; + struct iovec txrecord = {0, 0}; + int ret = -1; + size_t fraglen = 0; + + ret = rpc_request_to_xdr(request, recordstart, rlen, &requesthdr); + if (ret == -1) { + gf_log("rpc-clnt", GF_LOG_DEBUG, "Failed to create RPC request"); + goto out; + } + + fraglen = payload + requesthdr.iov_len; + gf_log("rpc-clnt", GF_LOG_TRACE, + "Request fraglen %zu, payload: %zu, " + "rpc hdr: %zu", + fraglen, payload, requesthdr.iov_len); + + txrecord.iov_base = recordstart; + + /* Remember, this is only the vec for the RPC header and does not + * include the payload above. We needed the payload only to calculate + * the size of the full fragment. This size is sent in the fragment + * header. + */ + txrecord.iov_len = requesthdr.iov_len; out: - return txrecord; + return txrecord; } - struct iobuf * -rpc_clnt_record_build_record (struct rpc_clnt *clnt, int prognum, int progver, - int procnum, size_t payload, uint64_t xid, - struct auth_glusterfs_parms *au, struct iovec *recbuf) +rpc_clnt_record_build_record(struct rpc_clnt *clnt, call_frame_t *fr, + int prognum, int progver, int procnum, + size_t hdrsize, uint64_t xid, struct iovec *recbuf) { - struct rpc_msg request = {0, }; - struct iobuf *request_iob = NULL; - char *record = NULL; - struct iovec recordhdr = {0, }; - size_t pagesize = 0; - int ret = -1; - char auth_data[RPC_CLNT_MAX_AUTH_BYTES] = {0, }; - - if ((!clnt) || (!recbuf) || (!au)) { - goto out; - } + struct rpc_msg request = { + 0, + }; + struct iobuf *request_iob = NULL; + char *record = NULL; + struct iovec recordhdr = { + 0, + }; + size_t pagesize = 0; + int ret = -1; + size_t xdr_size = 0; + char auth_data[GF_MAX_AUTH_BYTES] = { + 0, + }; + + if ((!clnt) || (!recbuf)) { + goto out; + } + + /* Fill the rpc structure and XDR it into the buffer got above. */ + ret = rpc_clnt_fill_request(clnt, prognum, progver, procnum, xid, fr, + &request, auth_data); + + if (ret == -1) { + gf_log(clnt->conn.name, GF_LOG_WARNING, + "cannot build a rpc-request xid (%" PRIu64 ")", xid); + goto out; + } + + xdr_size = xdr_sizeof((xdrproc_t)xdr_callmsg, &request); + + /* First, try to get a pointer into the buffer which the RPC + * layer can use. + */ + request_iob = iobuf_get2(clnt->ctx->iobuf_pool, (xdr_size + hdrsize)); + if (!request_iob) { + goto out; + } + + pagesize = iobuf_pagesize(request_iob); + + record = iobuf_ptr(request_iob); /* Now we have it. */ + + recordhdr = rpc_clnt_record_build_header(record, pagesize, &request, + hdrsize); + + if (!recordhdr.iov_base) { + gf_log(clnt->conn.name, GF_LOG_ERROR, "Failed to build record header"); + iobuf_unref(request_iob); + request_iob = NULL; + recbuf->iov_base = NULL; + goto out; + } + + recbuf->iov_base = recordhdr.iov_base; + recbuf->iov_len = recordhdr.iov_len; - /* First, try to get a pointer into the buffer which the RPC - * layer can use. - */ - request_iob = iobuf_get (clnt->ctx->iobuf_pool); - if (!request_iob) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "Failed to get iobuf"); - goto out; - } +out: + return request_iob; +} - pagesize = ((struct iobuf_pool *)clnt->ctx->iobuf_pool)->page_size; +static inline struct iobuf * +rpc_clnt_record(struct rpc_clnt *clnt, call_frame_t *call_frame, + rpc_clnt_prog_t *prog, int procnum, size_t hdrlen, + struct iovec *rpchdr, uint64_t callid) +{ + if (!prog || !rpchdr || !call_frame) { + return NULL; + } - record = iobuf_ptr (request_iob); /* Now we have it. */ + return rpc_clnt_record_build_record(clnt, call_frame, prog->prognum, + prog->progver, procnum, hdrlen, callid, + rpchdr); +} - /* Fill the rpc structure and XDR it into the buffer got above. */ - ret = rpc_clnt_fill_request (prognum, progver, procnum, payload, xid, - au, &request, auth_data); - if (ret == -1) { - gf_log ("rpc-clnt", GF_LOG_DEBUG, "cannot build a rpc-request " - "xid (%"PRIu64")", xid); - goto out; - } +int +rpcclnt_cbk_program_register(struct rpc_clnt *clnt, + rpcclnt_cb_program_t *program, void *mydata) +{ + int ret = -1; + char already_registered = 0; + rpcclnt_cb_program_t *tmp = NULL; - recordhdr = rpc_clnt_record_build_header (record, pagesize, &request, - payload); + if (!clnt) + goto out; - //GF_FREE (request.rm_call.cb_cred.oa_base); + if (program->actors == NULL) + goto out; - if (!recordhdr.iov_base) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "Failed to build record " - " header"); - iobuf_unref (request_iob); - request_iob = NULL; - recbuf->iov_base = NULL; - goto out; + pthread_mutex_lock(&clnt->lock); + { + list_for_each_entry(tmp, &clnt->programs, program) + { + if ((program->prognum == tmp->prognum) && + (program->progver == tmp->progver)) { + already_registered = 1; + break; + } } + } + pthread_mutex_unlock(&clnt->lock); - recbuf->iov_base = recordhdr.iov_base; - recbuf->iov_len = recordhdr.iov_len; - -out: - return request_iob; -} - - -struct iobuf * -rpc_clnt_record (struct rpc_clnt *clnt, call_frame_t *call_frame, - rpc_clnt_prog_t *prog,int procnum, size_t payload_len, - struct iovec *rpchdr, uint64_t callid) -{ - struct auth_glusterfs_parms au = {0, }; - struct iobuf *request_iob = NULL; - - if (!prog || !rpchdr || !call_frame) { - goto out; - } + if (already_registered) { + gf_log_callingfn(clnt->conn.name, GF_LOG_DEBUG, "already registered"); + ret = 0; + goto out; + } - au.pid = call_frame->root->pid; - au.uid = call_frame->root->uid; - au.gid = call_frame->root->gid; - au.ngrps = call_frame->root->ngrps; - au.lk_owner = call_frame->root->lk_owner; - if (!au.lk_owner) - au.lk_owner = au.pid; + tmp = GF_MALLOC(sizeof(*tmp), gf_common_mt_rpcclnt_cb_program_t); + if (tmp == NULL) { + goto out; + } - gf_log ("", GF_LOG_TRACE, "Auth Info: pid: %u, uid: %d" - ", gid: %d, owner: %"PRId64, - au.pid, au.uid, au.gid, au.lk_owner); + memcpy(tmp, program, sizeof(*tmp)); + INIT_LIST_HEAD(&tmp->program); - memcpy (au.groups, call_frame->root->groups, 16); + tmp->mydata = mydata; - //rpc_transport_get_myname (clnt->conn.trans, myname, UNIX_PATH_MAX); - //au.aup_machname = myname; + pthread_mutex_lock(&clnt->lock); + { + list_add_tail(&tmp->program, &clnt->programs); + } + pthread_mutex_unlock(&clnt->lock); - /* Assuming the client program would like to speak to the same versioned - * program on server. - */ - request_iob = rpc_clnt_record_build_record (clnt, prog->prognum, - prog->progver, - procnum, payload_len, - callid, &au, - rpchdr); - if (!request_iob) { - gf_log ("rpc-clnt", GF_LOG_DEBUG, "cannot build rpc-record"); - goto out; - } + ret = 0; + gf_log(clnt->conn.name, GF_LOG_DEBUG, + "New program registered: %s, Num: %d, Ver: %d", program->progname, + program->prognum, program->progver); out: - return request_iob; + if (ret == -1 && clnt) { + gf_log(clnt->conn.name, GF_LOG_ERROR, + "Program registration failed:" + " %s, Num: %d, Ver: %d", + program->progname, program->prognum, program->progver); + } + + return ret; } int -rpcclnt_cbk_program_register (struct rpc_clnt *clnt, - rpcclnt_cb_program_t *program) +rpc_clnt_submit(struct rpc_clnt *rpc, rpc_clnt_prog_t *prog, int procnum, + fop_cbk_fn_t cbkfn, struct iovec *proghdr, int proghdrcount, + struct iovec *progpayload, int progpayloadcount, + struct iobref *iobref, void *frame, struct iovec *rsphdr, + int rsphdr_count, struct iovec *rsp_payload, + int rsp_payload_count, struct iobref *rsp_iobref) { - int ret = -1; - - if (!clnt) - goto out; + rpc_clnt_connection_t *conn = NULL; + struct iobuf *request_iob = NULL; + struct iovec rpchdr = { + 0, + }; + struct rpc_req *rpcreq = NULL; + rpc_transport_req_t req; + int ret = -1; + int proglen = 0; + char new_iobref = 0; + uint64_t callid = 0; + gf_boolean_t need_unref = _gf_false; + call_frame_t *cframe = frame; + + if (!rpc || !prog || !frame) { + goto out; + } + + conn = &rpc->conn; + + rpcreq = mem_get(rpc->reqpool); + if (rpcreq == NULL) { + goto out; + } + + memset(rpcreq, 0, sizeof(*rpcreq)); + memset(&req, 0, sizeof(req)); + + if (!iobref) { + iobref = iobref_new(); + if (!iobref) { + goto out; + } + + new_iobref = 1; + } + + callid = GF_ATOMIC_INC(rpc->xid); + + rpcreq->prog = prog; + rpcreq->procnum = procnum; + rpcreq->conn = conn; + rpcreq->xid = callid; + rpcreq->cbkfn = cbkfn; + + ret = -1; + + if (proghdr) { + proglen += iov_length(proghdr, proghdrcount); + } + + request_iob = rpc_clnt_record(rpc, frame, prog, procnum, proglen, &rpchdr, + callid); + if (!request_iob) { + gf_log(conn->name, GF_LOG_WARNING, "cannot build rpc-record"); + goto out; + } + + iobref_add(iobref, request_iob); + + req.msg.rpchdr = &rpchdr; + req.msg.rpchdrcount = 1; + req.msg.proghdr = proghdr; + req.msg.proghdrcount = proghdrcount; + req.msg.progpayload = progpayload; + req.msg.progpayloadcount = progpayloadcount; + req.msg.iobref = iobref; + + req.rsp.rsphdr = rsphdr; + req.rsp.rsphdr_count = rsphdr_count; + req.rsp.rsp_payload = rsp_payload; + req.rsp.rsp_payload_count = rsp_payload_count; + req.rsp.rsp_iobref = rsp_iobref; + req.rpc_req = rpcreq; + + pthread_mutex_lock(&conn->lock); + { + if (conn->connected == 0) { + if (rpc->disabled) + goto unlock; + ret = rpc_transport_connect(conn->trans, conn->config.remote_port); + if (ret < 0) { + gf_log(conn->name, + (errno == EINPROGRESS) ? GF_LOG_DEBUG : GF_LOG_WARNING, + "error returned while attempting to " + "connect to host:%s, port:%d", + conn->config.remote_host, conn->config.remote_port); + goto unlock; + } + } + + ret = rpc_transport_submit_request(conn->trans, &req); + if (ret == -1) { + gf_log(conn->name, GF_LOG_WARNING, + "failed to submit rpc-request " + "(unique: %" PRIu64 + ", XID: 0x%x Program: %s, " + "ProgVers: %d, Proc: %d) to rpc-transport (%s)", + cframe->root->unique, rpcreq->xid, rpcreq->prog->progname, + rpcreq->prog->progver, rpcreq->procnum, conn->name); + } else if ((ret >= 0) && frame) { + /* Save the frame in queue */ + __save_frame(rpc, frame, rpcreq); + + /* A ref on rpc-clnt object is taken while registering + * call_bail to timer in __save_frame. If it fails to + * register, it needs an unref and should happen outside + * conn->lock which otherwise leads to deadlocks */ + if (conn->timer == NULL) + need_unref = _gf_true; + + conn->msgcnt++; + + gf_log("rpc-clnt", GF_LOG_TRACE, + "submitted request " + "(unique: %" PRIu64 + ", XID: 0x%x, Program: %s, " + "ProgVers: %d, Proc: %d) to rpc-transport (%s)", + cframe->root->unique, rpcreq->xid, rpcreq->prog->progname, + rpcreq->prog->progver, rpcreq->procnum, conn->name); + } + } +unlock: + pthread_mutex_unlock(&conn->lock); - if (program->actors == NULL) - goto out; + if (need_unref) + rpc_clnt_unref(rpc); - INIT_LIST_HEAD (&program->program); + if (ret == -1) { + goto out; + } - list_add_tail (&program->program, &clnt->programs); - - ret = 0; - gf_log ("rpc-clnt", GF_LOG_DEBUG, "New program registered: %s, Num: %d," - " Ver: %d", program->progname, program->prognum, - program->progver); + rpc_clnt_check_and_start_ping(rpc); + ret = 0; out: - if (ret == -1) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "Program registration failed:" - " %s, Num: %d, Ver: %d", program->progname, - program->prognum, program->progver); - } - - return ret; + if (request_iob) { + iobuf_unref(request_iob); + } + + if (new_iobref && iobref) { + iobref_unref(iobref); + } + + if (frame && (ret == -1)) { + if (rpcreq) { + rpcreq->rpc_status = -1; + cbkfn(rpcreq, NULL, 0, frame); + mem_put(rpcreq); + } + } + return ret; } - -int -rpc_clnt_submit (struct rpc_clnt *rpc, rpc_clnt_prog_t *prog, - int procnum, fop_cbk_fn_t cbkfn, - struct iovec *proghdr, int proghdrcount, - struct iovec *progpayload, int progpayloadcount, - struct iobref *iobref, void *frame, struct iovec *rsphdr, - int rsphdr_count, struct iovec *rsp_payload, - int rsp_payload_count, struct iobref *rsp_iobref) +struct rpc_clnt * +rpc_clnt_ref(struct rpc_clnt *rpc) { - rpc_clnt_connection_t *conn = NULL; - struct iobuf *request_iob = NULL; - struct iovec rpchdr = {0,}; - struct rpc_req *rpcreq = NULL; - rpc_transport_req_t req; - int ret = -1; - int proglen = 0; - char new_iobref = 0; - uint64_t callid = 0; - - if (!rpc || !prog || !frame) { - goto out; - } - - rpcreq = mem_get (rpc->reqpool); - if (rpcreq == NULL) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "out of memory"); - goto out; - } + if (!rpc) + return NULL; - memset (rpcreq, 0, sizeof (*rpcreq)); - memset (&req, 0, sizeof (req)); - - if (!iobref) { - iobref = iobref_new (); - if (!iobref) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "out of memory"); - goto out; - } + GF_ATOMIC_INC(rpc->refcount); + return rpc; +} - new_iobref = 1; - } +static void +rpc_clnt_trigger_destroy(struct rpc_clnt *rpc) +{ + rpc_clnt_connection_t *conn = NULL; + rpc_transport_t *trans = NULL; - callid = rpc_clnt_new_callid (rpc); + if (!rpc) + return; - conn = &rpc->conn; + /* reading conn->trans outside conn->lock is OK, since this is the last + * ref*/ + conn = &rpc->conn; + trans = conn->trans; + rpc_clnt_disable(rpc); + + /* This is to account for rpc_clnt_disable that might have been called + * before rpc_clnt_unref */ + if (trans) { + /* set conn->trans to NULL before rpc_transport_unref + * as rpc_transport_unref can potentially free conn + */ + conn->trans = NULL; + rpc_transport_unref(trans); + } +} - rpcreq->prog = prog; - rpcreq->procnum = procnum; - rpcreq->conn = conn; - rpcreq->xid = callid; - rpcreq->cbkfn = cbkfn; +static void +rpc_clnt_destroy(struct rpc_clnt *rpc) +{ + rpcclnt_cb_program_t *program = NULL; + rpcclnt_cb_program_t *tmp = NULL; + struct saved_frames *saved_frames = NULL; + rpc_clnt_connection_t *conn = NULL; - pthread_mutex_lock (&conn->lock); - { - if (conn->connected == 0) { - rpc_transport_connect (conn->trans, - conn->config.remote_port); - } + if (!rpc) + return; - ret = -1; + conn = &rpc->conn; + GF_FREE(rpc->conn.name); + /* Access saved_frames in critical-section to avoid + crash in rpc_clnt_connection_cleanup at the time + of destroying saved frames + */ + pthread_mutex_lock(&conn->lock); + { + saved_frames = conn->saved_frames; + conn->saved_frames = NULL; + } + pthread_mutex_unlock(&conn->lock); + + saved_frames_destroy(saved_frames); + pthread_mutex_destroy(&rpc->lock); + pthread_mutex_destroy(&rpc->conn.lock); + pthread_cond_destroy(&rpc->conn.cond); + + /* mem-pool should be destroyed, otherwise, + it will cause huge memory leaks */ + mem_pool_destroy(rpc->reqpool); + mem_pool_destroy(rpc->saved_frames_pool); + + list_for_each_entry_safe(program, tmp, &rpc->programs, program) + { + GF_FREE(program); + } + + GF_FREE(rpc); + return; +} - if (proghdr) { - proglen += iov_length (proghdr, proghdrcount); - } +struct rpc_clnt * +rpc_clnt_unref(struct rpc_clnt *rpc) +{ + int count = 0; - if (progpayload) { - proglen += iov_length (progpayload, - progpayloadcount); - } + if (!rpc) + return NULL; - request_iob = rpc_clnt_record (rpc, frame, prog, - procnum, proglen, - &rpchdr, callid); - if (!request_iob) { - gf_log ("rpc-clnt", GF_LOG_DEBUG, - "cannot build rpc-record"); - goto unlock; - } + count = GF_ATOMIC_DEC(rpc->refcount); - iobref_add (iobref, request_iob); - - req.msg.rpchdr = &rpchdr; - req.msg.rpchdrcount = 1; - req.msg.proghdr = proghdr; - req.msg.proghdrcount = proghdrcount; - req.msg.progpayload = progpayload; - req.msg.progpayloadcount = progpayloadcount; - req.msg.iobref = iobref; - - req.rsp.rsphdr = rsphdr; - req.rsp.rsphdr_count = rsphdr_count; - req.rsp.rsp_payload = rsp_payload; - req.rsp.rsp_payload_count = rsp_payload_count; - req.rsp.rsp_iobref = rsp_iobref; - req.rpc_req = rpcreq; - - ret = rpc_transport_submit_request (rpc->conn.trans, - &req); - if (ret == -1) { - gf_log ("rpc-clnt", GF_LOG_DEBUG, - "transmission of rpc-request failed"); - } + if (!count) { + rpc_clnt_trigger_destroy(rpc); + return NULL; + } + return rpc; +} - if ((ret >= 0) && frame) { - gettimeofday (&conn->last_sent, NULL); - /* Save the frame in queue */ - __save_frame (rpc, frame, rpcreq); - } - } -unlock: - pthread_mutex_unlock (&conn->lock); +int +rpc_clnt_disable(struct rpc_clnt *rpc) +{ + rpc_clnt_connection_t *conn = NULL; + rpc_transport_t *trans = NULL; + int unref = 0; + int ret = 0; + gf_boolean_t timer_unref = _gf_false; + gf_boolean_t reconnect_unref = _gf_false; + + if (!rpc) { + goto out; + } + + conn = &rpc->conn; + + pthread_mutex_lock(&conn->lock); + { + rpc->disabled = 1; + + if (conn->timer) { + ret = gf_timer_call_cancel(rpc->ctx, conn->timer); + /* If the event is not fired and it actually cancelled + * the timer, do the unref else registered call back + * function will take care of it. + */ + if (!ret) + timer_unref = _gf_true; + conn->timer = NULL; + } + + if (conn->reconnect) { + ret = gf_timer_call_cancel(rpc->ctx, conn->reconnect); + if (!ret) + reconnect_unref = _gf_true; + conn->reconnect = NULL; + } + conn->connected = 0; + + unref = rpc_clnt_remove_ping_timer_locked(rpc); + trans = conn->trans; + } + pthread_mutex_unlock(&conn->lock); + + ret = -1; + if (trans) { + ret = rpc_transport_disconnect(trans, _gf_true); + /* The auth_value was being reset to AUTH_GLUSTERFS_v2. + * if (clnt->auth_value) + * clnt->auth_value = AUTH_GLUSTERFS_v2; + * It should not be reset here. The disconnect during + * portmap request can race with handshake. If handshake + * happens first and disconnect later, auth_value would set + * to default value and it never sets back to actual auth_value + * supported by server. But it's important to set to lower + * version supported in the case where the server downgrades. + * So moving this code to RPC_TRANSPORT_CONNECT. Note that + * CONNECT cannot race with handshake as by nature it is + * serialized with handhake. An handshake can happen only + * on a connected transport and hence its strictly serialized. + */ + } + if (unref) + rpc_clnt_unref(rpc); - if (ret == -1) { - goto out; - } + if (timer_unref) + rpc_clnt_unref(rpc); - ret = 0; + if (reconnect_unref) + rpc_clnt_unref(rpc); out: - iobuf_unref (request_iob); - - if (new_iobref && iobref) { - iobref_unref (iobref); - } - - if (frame && (ret == -1)) { - rpcreq->rpc_status = -1; - cbkfn (rpcreq, NULL, 0, frame); - mem_put (rpc->reqpool, rpcreq); - } - return ret; + return ret; } - void -rpc_clnt_destroy (struct rpc_clnt *rpc) +rpc_clnt_reconfig(struct rpc_clnt *rpc, struct rpc_clnt_config *config) { - if (!rpc) - return; - - rpc_transport_destroy (rpc->conn.trans); - rpc_clnt_connection_cleanup (&rpc->conn); - rpc_clnt_reconnect_cleanup (&rpc->conn); - saved_frames_destroy (rpc->conn.saved_frames); - pthread_mutex_destroy (&rpc->lock); - pthread_mutex_destroy (&rpc->conn.lock); - GF_FREE (rpc); - return; -} - - -void -rpc_clnt_reconfig (struct rpc_clnt *rpc, struct rpc_clnt_config *config) -{ - if (config->rpc_timeout) - rpc->conn.config.rpc_timeout = config->rpc_timeout; - - if (config->remote_port) - rpc->conn.config.remote_port = config->remote_port; + if (config->ping_timeout) { + if (config->ping_timeout != rpc->conn.ping_timeout) + gf_log(rpc->conn.name, GF_LOG_INFO, + "changing ping timeout to %d (from %d)", + config->ping_timeout, rpc->conn.ping_timeout); - if (config->remote_host) { - if (rpc->conn.config.remote_host) - FREE (rpc->conn.config.remote_host); - rpc->conn.config.remote_host = gf_strdup (config->remote_host); + pthread_mutex_lock(&rpc->conn.lock); + { + rpc->conn.ping_timeout = config->ping_timeout; + } + pthread_mutex_unlock(&rpc->conn.lock); + } + + if (config->rpc_timeout) { + if (config->rpc_timeout != rpc->conn.config.rpc_timeout) + gf_log(rpc->conn.name, GF_LOG_INFO, + "changing timeout to %d (from %d)", config->rpc_timeout, + rpc->conn.config.rpc_timeout); + rpc->conn.config.rpc_timeout = config->rpc_timeout; + } + + if (config->remote_port) { + if (config->remote_port != rpc->conn.config.remote_port) + gf_log(rpc->conn.name, GF_LOG_INFO, "changing port to %d (from %d)", + config->remote_port, rpc->conn.config.remote_port); + + rpc->conn.config.remote_port = config->remote_port; + } + + if (config->remote_host) { + if (rpc->conn.config.remote_host) { + if (strcmp(rpc->conn.config.remote_host, config->remote_host)) + gf_log(rpc->conn.name, GF_LOG_INFO, + "changing hostname to %s (from %s)", config->remote_host, + rpc->conn.config.remote_host); + GF_FREE(rpc->conn.config.remote_host); + } else { + gf_log(rpc->conn.name, GF_LOG_INFO, "setting hostname to %s", + config->remote_host); } + + rpc->conn.config.remote_host = gf_strdup(config->remote_host); + } } diff --git a/rpc/rpc-lib/src/rpc-clnt.h b/rpc/rpc-lib/src/rpc-clnt.h index ab95608adb7..2945265200b 100644 --- a/rpc/rpc-lib/src/rpc-clnt.h +++ b/rpc/rpc-lib/src/rpc-clnt.h @@ -1,98 +1,92 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ -#ifndef _RPC_CLNT_H -#define _RPC_CLNT_H +#ifndef __RPC_CLNT_H +#define __RPC_CLNT_H -#include "stack.h" +#include <glusterfs/stack.h> #include "rpc-transport.h" -#include "timer.h" +#include <glusterfs/timer.h> #include "xdr-common.h" +#include "glusterfs3.h" typedef enum { - RPC_CLNT_CONNECT, - RPC_CLNT_DISCONNECT, - RPC_CLNT_MSG + RPC_CLNT_CONNECT, + RPC_CLNT_DISCONNECT, + RPC_CLNT_PING, + RPC_CLNT_MSG, + RPC_CLNT_DESTROY } rpc_clnt_event_t; -#define AUTH_GLUSTERFS 5 -#define RPC_CLNT_MAX_AUTH_BYTES 1024 +#define SFRAME_GET_PROGNUM(sframe) (sframe->rpcreq->prog->prognum) +#define SFRAME_GET_PROGVER(sframe) (sframe->rpcreq->prog->progver) +#define SFRAME_GET_PROCNUM(sframe) (sframe->rpcreq->procnum) -struct xptr_clnt; struct rpc_req; struct rpc_clnt; struct rpc_clnt_config; struct rpc_clnt_program; -typedef int (*rpc_clnt_notify_t) (struct rpc_clnt *rpc, void *mydata, - rpc_clnt_event_t fn, void *data); +typedef int (*rpc_clnt_notify_t)(struct rpc_clnt *rpc, void *mydata, + rpc_clnt_event_t fn, void *data); -typedef int (*fop_cbk_fn_t) (struct rpc_req *req, struct iovec *iov, int count, - void *myframe); +typedef int (*fop_cbk_fn_t)(struct rpc_req *req, struct iovec *iov, int count, + void *myframe); -typedef int (*clnt_fn_t) (call_frame_t *fr, xlator_t *xl, void *args); +typedef int (*clnt_fn_t)(call_frame_t *fr, xlator_t *xl, void *args); struct saved_frame { - union { - struct list_head list; - struct { - struct saved_frame *frame_next; - struct saved_frame *frame_prev; - }; - }; - void *capital_this; - void *frame; - struct timeval saved_at; - struct rpc_req *rpcreq; - rpc_transport_rsp_t rsp; + union { + struct list_head list; + struct { + struct saved_frame *frame_next; + struct saved_frame *frame_prev; + }; + }; + void *capital_this; + void *frame; + struct rpc_req *rpcreq; + struct timeval saved_at; + rpc_transport_rsp_t rsp; }; struct saved_frames { - int64_t count; - struct saved_frame sf; + int64_t count; + struct saved_frame sf; + struct saved_frame lk_sf; }; - /* Initialized by procnum */ typedef struct rpc_clnt_procedure { - char *procname; - clnt_fn_t fn; + char *procname; + clnt_fn_t fn; } rpc_clnt_procedure_t; typedef struct rpc_clnt_program { - char *progname; - int prognum; - int progver; - rpc_clnt_procedure_t *proctable; - char **procnames; - int numproc; + char *progname; + int prognum; + int progver; + rpc_clnt_procedure_t *proctable; + char **procnames; + int numproc; } rpc_clnt_prog_t; -typedef int (*rpcclnt_cb_fn) (void *data); +typedef int (*rpcclnt_cb_fn)(struct rpc_clnt *rpc, void *mydata, void *data); /* The descriptor for each procedure/actor that runs * over the RPC service. */ typedef struct rpcclnt_actor_desc { - char procname[32]; - int procnum; - rpcclnt_cb_fn actor; + char procname[32]; + rpcclnt_cb_fn actor; + int procnum; } rpcclnt_cb_actor_t; /* Describes a program and its version along with the function pointers @@ -100,98 +94,113 @@ typedef struct rpcclnt_actor_desc { * Never changed ever by any thread so no need for a lock. */ typedef struct rpcclnt_cb_program { - char progname[32]; - int prognum; - int progver; - rpcclnt_cb_actor_t *actors; /* All procedure handlers */ - int numactors; /* Num actors in actor array */ + char progname[32]; + int prognum; + int progver; + rpcclnt_cb_actor_t *actors; /* All procedure handlers */ + /* Program specific state handed to actors */ + void *private; - /* Program specific state handed to actors */ - void *private; + /* list member to link to list of registered services with rpc_clnt */ + struct list_head program; + /* Needed for passing back in cb_actor */ + void *mydata; + int numactors; /* Num actors in actor array */ - /* list member to link to list of registered services with rpc_clnt */ - struct list_head program; } rpcclnt_cb_program_t; - - -#define RPC_MAX_AUTH_BYTES 400 typedef struct rpc_auth_data { - int flavour; - int datalen; - char authdata[RPC_MAX_AUTH_BYTES]; + int flavour; + int datalen; + char authdata[GF_MAX_AUTH_BYTES]; } rpc_auth_data_t; - struct rpc_clnt_config { - int rpc_timeout; - int remote_port; - char * remote_host; + int rpc_timeout; + int remote_port; + char *remote_host; + int ping_timeout; }; - -#define rpc_auth_flavour(au) ((au).flavour) +#define rpc_auth_flavour(au) ((au).flavour) struct rpc_clnt_connection { - pthread_mutex_t lock; - rpc_transport_t *trans; - struct rpc_clnt_config config; - gf_timer_t *reconnect; - gf_timer_t *timer; - gf_timer_t *ping_timer; - struct rpc_clnt *rpc_clnt; - char connected; - struct saved_frames *saved_frames; - int32_t frame_timeout; - struct timeval last_sent; - struct timeval last_received; - int32_t ping_started; + pthread_mutex_t lock; + pthread_cond_t cond; + rpc_transport_t *trans; + struct rpc_clnt_config config; + gf_timer_t *reconnect; + gf_timer_t *timer; + gf_timer_t *ping_timer; + struct rpc_clnt *rpc_clnt; + struct saved_frames *saved_frames; + struct timespec last_sent; + struct timespec last_received; + uint64_t pingcnt; + uint64_t msgcnt; + uint64_t cleanup_gen; + char *name; + int32_t ping_started; + int32_t frame_timeout; + int32_t ping_timeout; + gf_boolean_t disconnected; + char connected; }; typedef struct rpc_clnt_connection rpc_clnt_connection_t; struct rpc_req { - rpc_clnt_connection_t *conn; - uint32_t xid; - struct iovec req[2]; - int reqcnt; - struct iobref *req_iobref; - struct iovec rsp[2]; - int rspcnt; - struct iobref *rsp_iobref; - int rpc_status; - rpc_auth_data_t verf; - rpc_clnt_prog_t *prog; - int procnum; - fop_cbk_fn_t cbkfn; - void *conn_private; + rpc_clnt_connection_t *conn; + struct iovec req[2]; + struct iobref *req_iobref; + struct iovec rsp[2]; + int rspcnt; + int reqcnt; + struct iobref *rsp_iobref; + rpc_clnt_prog_t *prog; + rpc_auth_data_t verf; + fop_cbk_fn_t cbkfn; + void *conn_private; + int procnum; + int rpc_status; + uint32_t xid; }; -struct rpc_clnt { - pthread_mutex_t lock; - rpc_clnt_notify_t notifyfn; - rpc_clnt_connection_t conn; - void *mydata; - uint64_t xid; +typedef struct rpc_clnt { + pthread_mutex_t lock; + rpc_clnt_notify_t notifyfn; + rpc_clnt_connection_t conn; + void *mydata; + gf_atomic_t xid; - /* list of cb programs registered with rpc-clnt */ - struct list_head programs; + /* list of cb programs registered with rpc-clnt */ + struct list_head programs; - /* Memory pool for rpc_req_t */ - struct mem_pool *reqpool; + /* Memory pool for rpc_req_t */ + struct mem_pool *reqpool; - struct mem_pool *saved_frames_pool; + struct mem_pool *saved_frames_pool; - glusterfs_ctx_t *ctx; -}; + glusterfs_ctx_t *ctx; + gf_atomic_t refcount; + xlator_t *owner; + int auth_value; + char disabled; +} rpc_clnt_t; + +struct rpc_clnt * +rpc_clnt_new(dict_t *options, xlator_t *owner, char *name, + uint32_t reqpool_size); +int +rpc_clnt_start(struct rpc_clnt *rpc); -struct rpc_clnt * rpc_clnt_init (struct rpc_clnt_config *config, - dict_t *options, glusterfs_ctx_t *ctx, - char *name); +int +rpc_clnt_cleanup_and_start(struct rpc_clnt *rpc); -int rpc_clnt_register_notify (struct rpc_clnt *rpc, rpc_clnt_notify_t fn, - void *mydata); +int +rpc_clnt_register_notify(struct rpc_clnt *rpc, rpc_clnt_notify_t fn, + void *mydata); /* Some preconditions related to vectors holding responses. * @rsphdr: should contain pointer to buffer which can hold response header @@ -208,28 +217,44 @@ int rpc_clnt_register_notify (struct rpc_clnt *rpc, rpc_clnt_notify_t fn, * of the header. */ -int rpc_clnt_submit (struct rpc_clnt *rpc, rpc_clnt_prog_t *prog, - int procnum, fop_cbk_fn_t cbkfn, - struct iovec *proghdr, int proghdrcount, - struct iovec *progpayload, int progpayloadcount, - struct iobref *iobref, void *frame, struct iovec *rsphdr, - int rsphdr_count, struct iovec *rsp_payload, - int rsp_payload_count, struct iobref *rsp_iobref); +int +rpc_clnt_submit(struct rpc_clnt *rpc, rpc_clnt_prog_t *prog, int procnum, + fop_cbk_fn_t cbkfn, struct iovec *proghdr, int proghdrcount, + struct iovec *progpayload, int progpayloadcount, + struct iobref *iobref, void *frame, struct iovec *rsphdr, + int rsphdr_count, struct iovec *rsp_payload, + int rsp_payload_count, struct iobref *rsp_iobref); -void rpc_clnt_destroy (struct rpc_clnt *rpc); +struct rpc_clnt * +rpc_clnt_ref(struct rpc_clnt *rpc); -void rpc_clnt_set_connected (rpc_clnt_connection_t *conn); +struct rpc_clnt * +rpc_clnt_unref(struct rpc_clnt *rpc); -void rpc_clnt_unset_connected (rpc_clnt_connection_t *conn); +int +rpc_clnt_connection_cleanup(rpc_clnt_connection_t *conn); +int +rpc_clnt_reconnect_cleanup(rpc_clnt_connection_t *conn); +gf_boolean_t +is_rpc_clnt_disconnected(rpc_clnt_connection_t *conn); -void rpc_clnt_reconnect (void *trans_ptr); +void +rpc_clnt_reconnect(void *trans_ptr); -void rpc_clnt_reconfig (struct rpc_clnt *rpc, struct rpc_clnt_config *config); +void +rpc_clnt_reconfig(struct rpc_clnt *rpc, struct rpc_clnt_config *config); /* All users of RPC services should use this API to register their * procedure handlers. */ -int rpcclnt_cbk_program_register (struct rpc_clnt *svc, - rpcclnt_cb_program_t *program); +int +rpcclnt_cbk_program_register(struct rpc_clnt *svc, + rpcclnt_cb_program_t *program, void *mydata); + +int +rpc_clnt_disable(struct rpc_clnt *rpc); + +int +rpc_clnt_mgmt_pmap_signout(glusterfs_ctx_t *ctx, char *brick_name); #endif /* !_RPC_CLNT_H */ diff --git a/rpc/rpc-lib/src/rpc-common.c b/rpc/rpc-lib/src/rpc-common.c deleted file mode 100644 index 941f01a2510..00000000000 --- a/rpc/rpc-lib/src/rpc-common.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> - This file is part of GlusterFS. - - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. -*/ - - - -#include "xdr-common.h" - -ssize_t -xdr_serialize_generic (struct iovec outmsg, void *res, xdrproc_t proc) -{ - ssize_t ret = -1; - XDR xdr; - - if ((!outmsg.iov_base) || (!res) || (!proc)) - return -1; - - xdrmem_create (&xdr, outmsg.iov_base, (unsigned int)outmsg.iov_len, - XDR_ENCODE); - - if (!proc (&xdr, res)) { - ret = -1; - goto ret; - } - - ret = xdr_encoded_length (xdr); - -ret: - return ret; -} - - -ssize_t -xdr_to_generic (struct iovec inmsg, void *args, xdrproc_t proc) -{ - XDR xdr; - ssize_t ret = -1; - - if ((!inmsg.iov_base) || (!args) || (!proc)) - return -1; - - xdrmem_create (&xdr, inmsg.iov_base, (unsigned int)inmsg.iov_len, - XDR_DECODE); - - if (!proc (&xdr, args)) { - ret = -1; - goto ret; - } - - ret = xdr_decoded_length (xdr); -ret: - return ret; -} - - -bool_t -xdr_gf_dump_req (XDR *xdrs, gf_dump_req *objp) -{ - if (!xdr_u_quad_t (xdrs, &objp->gfs_id)) - return FALSE; - return TRUE; -} - -bool_t -xdr_gf_prog_detail (XDR *xdrs, gf_prog_detail *objp) -{ - if (!xdr_string (xdrs, &objp->progname, ~0)) - return FALSE; - if (!xdr_u_quad_t (xdrs, &objp->prognum)) - return FALSE; - if (!xdr_u_quad_t (xdrs, &objp->progver)) - return FALSE; - if (!xdr_pointer (xdrs, (char **)&objp->next, sizeof (gf_prog_detail), (xdrproc_t) xdr_gf_prog_detail)) - return FALSE; - return TRUE; -} - -bool_t -xdr_gf_dump_rsp (XDR *xdrs, gf_dump_rsp *objp) -{ - if (!xdr_u_quad_t (xdrs, &objp->gfs_id)) - return FALSE; - if (!xdr_int (xdrs, &objp->op_ret)) - return FALSE; - if (!xdr_int (xdrs, &objp->op_errno)) - return FALSE; - if (!xdr_pointer (xdrs, (char **)&objp->prog, sizeof (gf_prog_detail), (xdrproc_t) xdr_gf_prog_detail)) - return FALSE; - return TRUE; -} - - -ssize_t -xdr_serialize_dump_rsp (struct iovec outmsg, void *rsp) -{ - return xdr_serialize_generic (outmsg, (void *)rsp, - (xdrproc_t)xdr_gf_dump_rsp); -} - -ssize_t -xdr_to_dump_req (struct iovec inmsg, void *args) -{ - return xdr_to_generic (inmsg, (void *)args, - (xdrproc_t)xdr_gf_dump_req); -} - - -ssize_t -xdr_from_dump_req (struct iovec outmsg, void *rsp) -{ - return xdr_serialize_generic (outmsg, (void *)rsp, - (xdrproc_t)xdr_gf_dump_req); -} - -ssize_t -xdr_to_dump_rsp (struct iovec inmsg, void *args) -{ - return xdr_to_generic (inmsg, (void *)args, - (xdrproc_t)xdr_gf_dump_rsp); -} diff --git a/rpc/rpc-lib/src/rpc-drc.c b/rpc/rpc-lib/src/rpc-drc.c new file mode 100644 index 00000000000..de8dc630626 --- /dev/null +++ b/rpc/rpc-lib/src/rpc-drc.c @@ -0,0 +1,855 @@ +/* + Copyright (c) 2013 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + +#include "rpcsvc.h" +#ifndef RPC_DRC_H +#include "rpc-drc.h" +#endif +#include <glusterfs/locking.h> +#include <glusterfs/statedump.h> +#include <glusterfs/mem-pool.h> + +#include <netinet/in.h> +#include <unistd.h> + +/** + * rpcsvc_drc_op_destroy - Destroys the cached reply + * + * @param drc - the main drc structure + * @param reply - the cached reply to destroy + * @return NULL if reply is destroyed, reply otherwise + */ +static drc_cached_op_t * +rpcsvc_drc_op_destroy(rpcsvc_drc_globals_t *drc, drc_cached_op_t *reply) +{ + GF_ASSERT(drc); + GF_ASSERT(reply); + + if (reply->state == DRC_OP_IN_TRANSIT) + return reply; + + iobref_unref(reply->msg.iobref); + if (reply->msg.rpchdr) + GF_FREE(reply->msg.rpchdr); + if (reply->msg.proghdr) + GF_FREE(reply->msg.proghdr); + if (reply->msg.progpayload) + GF_FREE(reply->msg.progpayload); + + list_del(&reply->global_list); + reply->client->op_count--; + drc->op_count--; + mem_put(reply); + reply = NULL; + + return reply; +} + +/** + * rpcsvc_drc_op_rb_unref - This function is used in rb tree cleanup only + * + * @param reply - the cached reply to unref + * @param drc - the main drc structure + * @return void + */ +static void +rpcsvc_drc_rb_op_destroy(void *reply, void *drc) +{ + rpcsvc_drc_op_destroy(drc, (drc_cached_op_t *)reply); +} + +/** + * rpcsvc_remove_drc_client - Cleanup the drc client + * + * @param client - the drc client to be removed + * @return void + */ +static void +rpcsvc_remove_drc_client(drc_client_t *client) +{ + rb_destroy(client->rbtree, rpcsvc_drc_rb_op_destroy); + list_del(&client->client_list); + GF_FREE(client); +} + +/** + * rpcsvc_client_lookup - Given a sockaddr_storage, find the client if it exists + * + * @param drc - the main drc structure + * @param sockaddr - the network address of the client to be looked up + * @return drc client if it exists, NULL otherwise + */ +static drc_client_t * +rpcsvc_client_lookup(rpcsvc_drc_globals_t *drc, + struct sockaddr_storage *sockaddr) +{ + drc_client_t *client = NULL; + + GF_ASSERT(drc); + GF_ASSERT(sockaddr); + + if (list_empty(&drc->clients_head)) + return NULL; + + list_for_each_entry(client, &drc->clients_head, client_list) + { + if (gf_sock_union_equal_addr(&client->sock_union, + (union gf_sock_union *)sockaddr)) + return client; + } + + return NULL; +} + +/** + * drc_compare_reqs - Used by rbtree to determine if incoming req matches with + * an existing node(cached reply) in rbtree + * + * @param item - pointer to the incoming req + * @param rb_node_data - pointer to an rbtree node (cached reply) + * @param param - drc pointer - unused here, but used in *op_destroy + * @return 0 if req matches reply, else (req->xid - reply->xid) + */ +int +drc_compare_reqs(const void *item, const void *rb_node_data, void *param) +{ + int ret = -1; + drc_cached_op_t *req = NULL; + drc_cached_op_t *reply = NULL; + + GF_ASSERT(item); + GF_ASSERT(rb_node_data); + GF_ASSERT(param); + + req = (drc_cached_op_t *)item; + reply = (drc_cached_op_t *)rb_node_data; + + ret = req->xid - reply->xid; + if (ret != 0) + return ret; + + if (req->prognum == reply->prognum && req->procnum == reply->procnum && + req->progversion == reply->progversion) + return 0; + + return 1; +} + +/** + * drc_init_client_cache - initialize a drc client and its rb tree + * + * @param drc - the main drc structure + * @param client - the drc client to be initialized + * @return 0 on success, -1 on failure + */ +static int +drc_init_client_cache(rpcsvc_drc_globals_t *drc, drc_client_t *client) +{ + GF_ASSERT(drc); + GF_ASSERT(client); + + client->rbtree = rb_create(drc_compare_reqs, drc, NULL); + if (!client->rbtree) { + gf_log(GF_RPCSVC, GF_LOG_DEBUG, "rb tree creation failed"); + return -1; + } + + return 0; +} + +/** + * rpcsvc_get_drc_client - find the drc client with given sockaddr, else + * allocate and initialize a new drc client + * + * @param drc - the main drc structure + * @param sockaddr - network address of client + * @return drc client on success, NULL on failure + */ +static drc_client_t * +rpcsvc_get_drc_client(rpcsvc_drc_globals_t *drc, + struct sockaddr_storage *sockaddr) +{ + drc_client_t *client = NULL; + + GF_ASSERT(drc); + GF_ASSERT(sockaddr); + + client = rpcsvc_client_lookup(drc, sockaddr); + if (client) + goto out; + + /* if lookup fails, allocate cache for the new client */ + client = GF_CALLOC(1, sizeof(drc_client_t), gf_common_mt_drc_client_t); + if (!client) + goto out; + + GF_ATOMIC_INIT(client->ref, 0); + client->sock_union = (union gf_sock_union) * sockaddr; + client->op_count = 0; + INIT_LIST_HEAD(&client->client_list); + + if (drc_init_client_cache(drc, client)) { + gf_log(GF_RPCSVC, GF_LOG_DEBUG, "initialization of drc client failed"); + GF_FREE(client); + client = NULL; + goto out; + } + drc->client_count++; + + list_add(&client->client_list, &drc->clients_head); + +out: + return client; +} + +/** + * rpcsvc_need_drc - Determine if a request needs DRC service + * + * @param req - incoming request + * @return 1 if DRC is needed for req, 0 otherwise + */ +int +rpcsvc_need_drc(rpcsvc_request_t *req) +{ + rpcsvc_actor_t *actor = NULL; + rpcsvc_drc_globals_t *drc = NULL; + + GF_ASSERT(req); + GF_ASSERT(req->svc); + + drc = req->svc->drc; + + if (!drc || drc->status == DRC_UNINITIATED) + return 0; + + actor = rpcsvc_program_actor(req); + if (!actor) + return 0; + + return (actor->op_type == DRC_NON_IDEMPOTENT && drc->type != DRC_TYPE_NONE); +} + +/** + * rpcsvc_drc_client_ref - ref the drc client + * + * @param client - the drc client to ref + * @return client + */ +static drc_client_t * +rpcsvc_drc_client_ref(drc_client_t *client) +{ + GF_ASSERT(client); + GF_ATOMIC_INC(client->ref); + return client; +} + +/** + * rpcsvc_drc_client_unref - unref the drc client, and destroy + * the client on last unref + * + * @param drc - the main drc structure + * @param client - the drc client to unref + * @return NULL if it is the last unref, client otherwise + */ +static drc_client_t * +rpcsvc_drc_client_unref(rpcsvc_drc_globals_t *drc, drc_client_t *client) +{ + uint32_t refcount; + + GF_ASSERT(drc); + + refcount = GF_ATOMIC_DEC(client->ref); + if (!refcount) { + drc->client_count--; + rpcsvc_remove_drc_client(client); + client = NULL; + } + + return client; +} + +/** + * rpcsvc_drc_lookup - lookup a request to see if it is already cached + * + * @param req - incoming request + * @return cached reply of req if found, NULL otherwise + */ +drc_cached_op_t * +rpcsvc_drc_lookup(rpcsvc_request_t *req) +{ + drc_client_t *client = NULL; + drc_cached_op_t *reply = NULL; + drc_cached_op_t new = { + .xid = req->xid, + .prognum = req->prognum, + .progversion = req->progver, + .procnum = req->procnum, + }; + + GF_ASSERT(req); + + if (!req->trans->drc_client) { + client = rpcsvc_get_drc_client(req->svc->drc, + &req->trans->peerinfo.sockaddr); + if (!client) + goto out; + + req->trans->drc_client = rpcsvc_drc_client_ref(client); + } + + client = req->trans->drc_client; + + if (client->op_count == 0) + goto out; + + reply = rb_find(client->rbtree, &new); + +out: + return reply; +} + +/** + * rpcsvc_send_cached_reply - send the cached reply for the incoming request + * + * @param req - incoming request (which is a duplicate in this case) + * @param reply - the cached reply for req + * @return 0 on successful reply submission, -1 or other non-zero value + * otherwise + */ +int +rpcsvc_send_cached_reply(rpcsvc_request_t *req, drc_cached_op_t *reply) +{ + int ret = 0; + + GF_ASSERT(req); + GF_ASSERT(reply); + + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "sending cached reply: xid: %d, " + "client: %s", + req->xid, req->trans->peerinfo.identifier); + + rpcsvc_drc_client_ref(reply->client); + ret = rpcsvc_transport_submit( + req->trans, reply->msg.rpchdr, reply->msg.rpchdrcount, + reply->msg.proghdr, reply->msg.proghdrcount, reply->msg.progpayload, + reply->msg.progpayloadcount, reply->msg.iobref, req->trans_private); + rpcsvc_drc_client_unref(req->svc->drc, reply->client); + + return ret; +} + +/** + * rpcsvc_cache_reply - cache the reply for the processed request 'req' + * + * @param req - processed request + * @param iobref - iobref structure of the reply + * @param rpchdr - rpc header of the reply + * @param rpchdrcount - size of rpchdr + * @param proghdr - program header of the reply + * @param proghdrcount - size of proghdr + * @param payload - payload of the reply if any + * @param payloadcount - size of payload + * @return 0 on success, -1 on failure + */ +int +rpcsvc_cache_reply(rpcsvc_request_t *req, struct iobref *iobref, + struct iovec *rpchdr, int rpchdrcount, struct iovec *proghdr, + int proghdrcount, struct iovec *payload, int payloadcount) +{ + int ret = -1; + drc_cached_op_t *reply = NULL; + + GF_ASSERT(req); + GF_ASSERT(req->reply); + + reply = req->reply; + + reply->state = DRC_OP_CACHED; + + reply->msg.iobref = iobref_ref(iobref); + + reply->msg.rpchdrcount = rpchdrcount; + reply->msg.rpchdr = iov_dup(rpchdr, rpchdrcount); + + reply->msg.proghdrcount = proghdrcount; + reply->msg.proghdr = iov_dup(proghdr, proghdrcount); + + reply->msg.progpayloadcount = payloadcount; + if (payloadcount) + reply->msg.progpayload = iov_dup(payload, payloadcount); + + // rpcsvc_drc_client_unref (req->svc->drc, req->trans->drc_client); + // rpcsvc_drc_op_unref (req->svc->drc, reply); + ret = 0; + + return ret; +} + +/** + * rpcsvc_vacate_drc_entries - free up some percentage of drc cache + * based on the lru factor + * + * @param drc - the main drc structure + * @return void + */ +static void +rpcsvc_vacate_drc_entries(rpcsvc_drc_globals_t *drc) +{ + uint32_t i = 0; + uint32_t n = 0; + drc_cached_op_t *reply = NULL; + drc_cached_op_t *tmp = NULL; + drc_client_t *client = NULL; + + GF_ASSERT(drc); + + n = drc->global_cache_size / drc->lru_factor; + + list_for_each_entry_safe_reverse(reply, tmp, &drc->cache_head, global_list) + { + /* Don't delete ops that are in transit */ + if (reply->state == DRC_OP_IN_TRANSIT) + continue; + + client = reply->client; + + rb_delete(client->rbtree, reply); + + rpcsvc_drc_op_destroy(drc, reply); + rpcsvc_drc_client_unref(drc, client); + i++; + if (i >= n) + break; + } +} + +/** + * rpcsvc_add_op_to_cache - insert the cached op into the client rbtree and drc + * list + * + * @param drc - the main drc structure + * @param reply - the op to be inserted + * @return 0 on success, -1 on failure + */ +static int +rpcsvc_add_op_to_cache(rpcsvc_drc_globals_t *drc, drc_cached_op_t *reply) +{ + drc_client_t *client = NULL; + drc_cached_op_t **tmp_reply = NULL; + + GF_ASSERT(drc); + GF_ASSERT(reply); + + client = reply->client; + + /* cache is full, free up some space */ + if (drc->op_count >= drc->global_cache_size) + rpcsvc_vacate_drc_entries(drc); + + tmp_reply = (drc_cached_op_t **)rb_probe(client->rbtree, reply); + if (!tmp_reply) { + /* mem alloc failed */ + return -1; + } else if (*tmp_reply != reply) { + /* should never happen */ + gf_log(GF_RPCSVC, GF_LOG_ERROR, "DRC failed to detect duplicates"); + return -1; + } + + client->op_count++; + list_add(&reply->global_list, &drc->cache_head); + drc->op_count++; + + return 0; +} + +/** + * rpcsvc_cache_request - cache the in-transition incoming request + * + * @param req - incoming request + * @return 0 on success, -1 on failure + */ +int +rpcsvc_cache_request(rpcsvc_request_t *req) +{ + int ret = -1; + drc_client_t *client = NULL; + drc_cached_op_t *reply = NULL; + rpcsvc_drc_globals_t *drc = NULL; + + GF_ASSERT(req); + + drc = req->svc->drc; + + client = req->trans->drc_client; + if (!client) { + gf_log(GF_RPCSVC, GF_LOG_DEBUG, "drc client is NULL"); + goto out; + } + + reply = mem_get0(drc->mempool); + if (!reply) + goto out; + + reply->client = rpcsvc_drc_client_ref(client); + reply->xid = req->xid; + reply->prognum = req->prognum; + reply->progversion = req->progver; + reply->procnum = req->procnum; + reply->state = DRC_OP_IN_TRANSIT; + req->reply = reply; + INIT_LIST_HEAD(&reply->global_list); + + ret = rpcsvc_add_op_to_cache(drc, reply); + if (ret) { + req->reply = NULL; + rpcsvc_drc_op_destroy(drc, reply); + rpcsvc_drc_client_unref(drc, client); + gf_log(GF_RPCSVC, GF_LOG_DEBUG, "Failed to add op to drc cache"); + } + +out: + return ret; +} + +/** + * + * rpcsvc_drc_priv - function which dumps the drc state + * + * @param drc - the main drc structure + * @return 0 on success, -1 on failure + */ +int32_t +rpcsvc_drc_priv(rpcsvc_drc_globals_t *drc) +{ + int i = 0; + char key[GF_DUMP_MAX_BUF_LEN] = {0}; + drc_client_t *client = NULL; + char ip[INET6_ADDRSTRLEN] = {0}; + + if (!drc || drc->status == DRC_UNINITIATED) { + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "DRC is " + "uninitialized, not dumping its state"); + return 0; + } + + gf_proc_dump_add_section("rpc.drc"); + + if (TRY_LOCK(&drc->lock)) + return -1; + + gf_proc_dump_build_key(key, "drc", "type"); + gf_proc_dump_write(key, "%d", drc->type); + + gf_proc_dump_build_key(key, "drc", "client_count"); + gf_proc_dump_write(key, "%d", drc->client_count); + + gf_proc_dump_build_key(key, "drc", "current_cache_size"); + gf_proc_dump_write(key, "%d", drc->op_count); + + gf_proc_dump_build_key(key, "drc", "max_cache_size"); + gf_proc_dump_write(key, "%d", drc->global_cache_size); + + gf_proc_dump_build_key(key, "drc", "lru_factor"); + gf_proc_dump_write(key, "%d", drc->lru_factor); + + gf_proc_dump_build_key(key, "drc", "duplicate_request_count"); + gf_proc_dump_write(key, "%" PRIu64, drc->cache_hits); + + gf_proc_dump_build_key(key, "drc", "in_transit_duplicate_requests"); + gf_proc_dump_write(key, "%" PRIu64, drc->intransit_hits); + + list_for_each_entry(client, &drc->clients_head, client_list) + { + gf_proc_dump_build_key(key, "client", "%d.ip-address", i); + memset(ip, 0, INET6_ADDRSTRLEN); + switch (client->sock_union.storage.ss_family) { + case AF_INET: + gf_proc_dump_write( + key, "%s", + inet_ntop(AF_INET, &client->sock_union.sin.sin_addr.s_addr, + ip, INET_ADDRSTRLEN)); + break; + case AF_INET6: + gf_proc_dump_write( + key, "%s", + inet_ntop(AF_INET6, &client->sock_union.sin6.sin6_addr, ip, + INET6_ADDRSTRLEN)); + break; + default: + gf_proc_dump_write(key, "%s", "N/A"); + } + + gf_proc_dump_build_key(key, "client", "%d.ref_count", i); + gf_proc_dump_write(key, "%" PRIu32, GF_ATOMIC_GET(client->ref)); + gf_proc_dump_build_key(key, "client", "%d.op_count", i); + gf_proc_dump_write(key, "%d", client->op_count); + i++; + } + + UNLOCK(&drc->lock); + return 0; +} + +/** + * rpcsvc_drc_notify - function which is notified of RPC transport events + * + * @param svc - pointer to rpcsvc_t structure of the rpc + * @param xl - pointer to the xlator + * @param event - the event which triggered this notify + * @param data - the transport structure + * @return 0 on success, -1 on failure + */ +int +rpcsvc_drc_notify(rpcsvc_t *svc, void *xl, rpcsvc_event_t event, void *data) +{ + int ret = -1; + rpc_transport_t *trans = NULL; + drc_client_t *client = NULL; + rpcsvc_drc_globals_t *drc = NULL; + + GF_ASSERT(svc); + GF_ASSERT(svc->drc); + GF_ASSERT(data); + + drc = svc->drc; + + if (drc->status == DRC_UNINITIATED || drc->type == DRC_TYPE_NONE) + return 0; + + LOCK(&drc->lock); + { + trans = (rpc_transport_t *)data; + client = rpcsvc_get_drc_client(drc, &trans->peerinfo.sockaddr); + if (!client) + goto unlock; + + switch (event) { + case RPCSVC_EVENT_ACCEPT: + trans->drc_client = rpcsvc_drc_client_ref(client); + ret = 0; + break; + + case RPCSVC_EVENT_DISCONNECT: + ret = 0; + if (list_empty(&drc->clients_head)) + break; + /* should be the last unref */ + trans->drc_client = NULL; + rpcsvc_drc_client_unref(drc, client); + break; + + default: + break; + } + } +unlock: + UNLOCK(&drc->lock); + return ret; +} + +/** + * rpcsvc_drc_init - Initialize the duplicate request cache service + * + * @param svc - pointer to rpcsvc_t structure of the rpc + * @param options - the options dictionary which configures drc + * @return 0 on success, non-zero integer on failure + */ +int +rpcsvc_drc_init(rpcsvc_t *svc, dict_t *options) +{ + int ret = 0; + uint32_t drc_type = 0; + uint32_t drc_size = 0; + uint32_t drc_factor = 0; + rpcsvc_drc_globals_t *drc = NULL; + + GF_ASSERT(svc); + GF_ASSERT(options); + + /* Toggle DRC on/off, when more drc types(persistent/cluster) + * are added, we shouldn't treat this as boolean. */ + ret = dict_get_str_boolean(options, "nfs.drc", _gf_false); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_INFO, "drc user options need second look"); + ret = _gf_false; + } + + gf_log(GF_RPCSVC, GF_LOG_INFO, "DRC is turned %s", (ret ? "ON" : "OFF")); + + /*DRC off, nothing to do */ + if (ret == _gf_false) + return (0); + + drc = GF_CALLOC(1, sizeof(rpcsvc_drc_globals_t), + gf_common_mt_drc_globals_t); + if (!drc) + return (-1); + + LOCK_INIT(&drc->lock); + svc->drc = drc; + + /* Specify type of DRC to be used */ + ret = dict_get_uint32(options, "nfs.drc-type", &drc_type); + if (ret) { + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "drc type not set. Continuing with default"); + drc_type = DRC_DEFAULT_TYPE; + } + + /* Set the global cache size (no. of ops to cache) */ + ret = dict_get_uint32(options, "nfs.drc-size", &drc_size); + if (ret) { + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "drc size not set. Continuing with default size"); + drc_size = DRC_DEFAULT_CACHE_SIZE; + } + + LOCK(&drc->lock); + + drc->type = drc_type; + drc->global_cache_size = drc_size; + + /* Mempool for cached ops */ + drc->mempool = mem_pool_new(drc_cached_op_t, drc->global_cache_size); + if (!drc->mempool) { + UNLOCK(&drc->lock); + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Failed to get mempool for DRC, drc-size: %d", drc_size); + ret = -1; + goto post_unlock; + } + + /* What percent of cache to be evicted whenever it fills up */ + ret = dict_get_uint32(options, "nfs.drc-lru-factor", &drc_factor); + if (ret) { + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "drc lru factor not set. Continuing with policy default"); + drc_factor = DRC_DEFAULT_LRU_FACTOR; + } + + drc->lru_factor = (drc_lru_factor_t)drc_factor; + + INIT_LIST_HEAD(&drc->clients_head); + INIT_LIST_HEAD(&drc->cache_head); + + ret = rpcsvc_register_notify(svc, rpcsvc_drc_notify, THIS); + if (ret) { + UNLOCK(&drc->lock); + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "registration of drc_notify function failed"); + goto post_unlock; + } + + drc->status = DRC_INITIATED; + UNLOCK(&drc->lock); + gf_log(GF_RPCSVC, GF_LOG_DEBUG, "drc init successful"); +post_unlock: + if (ret == -1) { + if (drc->mempool) { + mem_pool_destroy(drc->mempool); + drc->mempool = NULL; + } + GF_FREE(drc); + svc->drc = NULL; + } + return ret; +} + +int +rpcsvc_drc_deinit(rpcsvc_t *svc) +{ + rpcsvc_drc_globals_t *drc = NULL; + + if (!svc) + return (-1); + + drc = svc->drc; + if (!drc) + return (0); + + LOCK(&drc->lock); + (void)rpcsvc_unregister_notify(svc, rpcsvc_drc_notify, THIS); + if (drc->mempool) { + mem_pool_destroy(drc->mempool); + drc->mempool = NULL; + } + UNLOCK(&drc->lock); + + GF_FREE(drc); + svc->drc = NULL; + + return (0); +} + +int +rpcsvc_drc_reconfigure(rpcsvc_t *svc, dict_t *options) +{ + int ret = -1; + gf_boolean_t enable_drc = _gf_false; + rpcsvc_drc_globals_t *drc = NULL; + uint32_t drc_size = 0; + + /* Input sanitization */ + if ((!svc) || (!options)) + return (-1); + + /* If DRC was not enabled before, Let rpcsvc_drc_init() to + * take care of DRC initialization part. + */ + drc = svc->drc; + if (!drc) { + return rpcsvc_drc_init(svc, options); + } + + /* DRC was already enabled before. Going to be reconfigured. Check + * if reconfigured options contain "nfs.drc" and "nfs.drc-size". + * + * NB: If DRC is "OFF", "drc-size" has no role to play. + * So, "drc-size" gets evaluated IFF DRC is "ON". + * + * If DRC is reconfigured, + * case 1: DRC is "ON" + * sub-case 1: drc-size remains same + * ACTION: Nothing to do. + * sub-case 2: drc-size just changed + * ACTION: rpcsvc_drc_deinit() followed by + * rpcsvc_drc_init(). + * + * case 2: DRC is "OFF" + * ACTION: rpcsvc_drc_deinit() + */ + ret = dict_get_str_boolean(options, "nfs.drc", _gf_false); + if (ret < 0) + ret = _gf_false; + + enable_drc = ret; + gf_log(GF_RPCSVC, GF_LOG_INFO, "DRC is turned %s", (ret ? "ON" : "OFF")); + + /* case 1: DRC is "ON"*/ + if (enable_drc) { + /* Fetch drc-size if reconfigured */ + if (dict_get_uint32(options, "nfs.drc-size", &drc_size)) + drc_size = DRC_DEFAULT_CACHE_SIZE; + + /* case 1: sub-case 1*/ + if (drc->global_cache_size == drc_size) + return (0); + + /* case 1: sub-case 2*/ + (void)rpcsvc_drc_deinit(svc); + return rpcsvc_drc_init(svc, options); + } + + /* case 2: DRC is "OFF" */ + return rpcsvc_drc_deinit(svc); +} diff --git a/rpc/rpc-lib/src/rpc-drc.h b/rpc/rpc-lib/src/rpc-drc.h new file mode 100644 index 00000000000..ce66430809b --- /dev/null +++ b/rpc/rpc-lib/src/rpc-drc.h @@ -0,0 +1,97 @@ +/* + Copyright (c) 2013 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + +#ifndef RPC_DRC_H +#define RPC_DRC_H + +#include "rpcsvc-common.h" +#include "rpcsvc.h" +#include <glusterfs/locking.h> +#include <glusterfs/dict.h> +#include "rb.h" + +/* per-client cache structure */ +struct drc_client { + union gf_sock_union sock_union; + /* pointers to the cache */ + struct rb_table *rbtree; + /* no. of ops currently cached */ + uint32_t op_count; + gf_atomic_uint32_t ref; + struct list_head client_list; +}; + +struct drc_cached_op { + drc_op_state_t state; + int prognum; + int progversion; + int procnum; + rpc_transport_msg_t msg; + drc_client_t *client; + struct list_head client_list; + struct list_head global_list; + int32_t ref; + uint32_t xid; +}; + +/* global drc definitions */ +enum drc_status { DRC_UNINITIATED, DRC_INITIATED }; +typedef enum drc_status drc_status_t; + +struct drc_globals { + /* allocator must be the first member since + * it is used so in gf_libavl_allocator + */ + struct libavl_allocator allocator; + /* configurable size parameter */ + gf_lock_t lock; + uint64_t cache_hits; + uint64_t intransit_hits; + struct mem_pool *mempool; + struct list_head cache_head; + struct list_head clients_head; + uint32_t op_count; + uint32_t client_count; + uint32_t global_cache_size; + drc_type_t type; + drc_lru_factor_t lru_factor; + drc_status_t status; +}; + +int +rpcsvc_need_drc(rpcsvc_request_t *req); + +drc_cached_op_t * +rpcsvc_drc_lookup(rpcsvc_request_t *req); + +int +rpcsvc_send_cached_reply(rpcsvc_request_t *req, drc_cached_op_t *reply); + +int +rpcsvc_cache_reply(rpcsvc_request_t *req, struct iobref *iobref, + struct iovec *rpchdr, int rpchdrcount, struct iovec *proghdr, + int proghdrcount, struct iovec *payload, int payloadcount); + +int +rpcsvc_cache_request(rpcsvc_request_t *req); + +int32_t +rpcsvc_drc_priv(rpcsvc_drc_globals_t *drc); + +int +rpcsvc_drc_init(rpcsvc_t *svc, dict_t *options); + +int +rpcsvc_drc_deinit(rpcsvc_t *svc); + +int +rpcsvc_drc_reconfigure(rpcsvc_t *svc, dict_t *options); + +#endif /* RPC_DRC_H */ diff --git a/rpc/rpc-lib/src/rpc-lib-messages.h b/rpc/rpc-lib/src/rpc-lib-messages.h new file mode 100644 index 00000000000..2c0b820dbf9 --- /dev/null +++ b/rpc/rpc-lib/src/rpc-lib-messages.h @@ -0,0 +1,34 @@ +/* + Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + +#ifndef _RPC_LIB_MESSAGES_H_ +#define _RPC_LIB_MESSAGES_H_ + +#include <glusterfs/glfs-message-id.h> + +/* To add new message IDs, append new identifiers at the end of the list. + * + * Never remove a message ID. If it's not used anymore, you can rename it or + * leave it as it is, but not delete it. This is to prevent reutilization of + * IDs by other messages. + * + * The component name must match one of the entries defined in + * glfs-message-id.h. + */ + +GLFS_MSGID(RPC_LIB, TRANS_MSG_ADDR_FAMILY_NOT_SPECIFIED, + TRANS_MSG_UNKNOWN_ADDR_FAMILY, TRANS_MSG_REMOTE_HOST_ERROR, + TRANS_MSG_DNS_RESOL_FAILED, TRANS_MSG_LISTEN_PATH_ERROR, + TRANS_MSG_CONNECT_PATH_ERROR, TRANS_MSG_GET_ADDR_INFO_FAILED, + TRANS_MSG_PORT_BIND_FAILED, TRANS_MSG_INET_ERROR, + TRANS_MSG_GET_NAME_INFO_FAILED, TRANS_MSG_TRANSPORT_ERROR, + TRANS_MSG_TIMEOUT_EXCEEDED, TRANS_MSG_SOCKET_BIND_ERROR); + +#endif /* !_RPC_LIB_MESSAGES_H_ */ diff --git a/rpc/rpc-lib/src/rpc-transport.c b/rpc/rpc-lib/src/rpc-transport.c index 39256d2422f..a6e201a9b36 100644 --- a/rpc/rpc-lib/src/rpc-transport.c +++ b/rpc/rpc-lib/src/rpc-transport.c @@ -1,1160 +1,672 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ #include <dlfcn.h> #include <stdlib.h> #include <stdio.h> #include <sys/poll.h> -#include <fnmatch.h> #include <stdint.h> -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - -#include "logging.h" #include "rpc-transport.h" -#include "glusterfs.h" -/* FIXME: xlator.h is needed for volume_option_t, need to define the datatype - * in some other header - */ -#include "xlator.h" -#include "list.h" #ifndef GF_OPTION_LIST_EMPTY #define GF_OPTION_LIST_EMPTY(_opt) (_opt->value[0] == NULL) #endif -/* RFC 1123 & 952 */ -static char -valid_host_name (char *address, int length) -{ - int i = 0; - char ret = 1; - - if ((length > 75) || (length == 1)) { - ret = 0; - goto out; - } - - if (!isalnum (address[length - 1])) { - ret = 0; - goto out; - } - - for (i = 0; i < length; i++) { - if (!isalnum (address[i]) && (address[i] != '.') - && (address[i] != '-')) { - ret = 0; - goto out; - } - } - -out: - return ret; -} - -static char -valid_ipv4_address (char *address, int length) -{ - int octets = 0; - int value = 0; - char *tmp = NULL, *ptr = NULL, *prev = NULL, *endptr = NULL; - char ret = 1; - - tmp = gf_strdup (address); - prev = strtok_r (tmp, ".", &ptr); - - while (prev != NULL) - { - octets++; - value = strtol (prev, &endptr, 10); - if ((value > 255) || (value < 0) || (endptr != NULL)) { - ret = 0; - goto out; - } - - prev = strtok_r (NULL, ".", &ptr); - } - - if (octets != 4) { - ret = 0; - } - -out: - GF_FREE (tmp); - return ret; -} - - -static char -valid_ipv6_address (char *address, int length) +int32_t +rpc_transport_count(const char *transport_type) { - int hex_numbers = 0; - int value = 0; - char *tmp = NULL, *ptr = NULL, *prev = NULL, *endptr = NULL; - char ret = 1; - - tmp = gf_strdup (address); - prev = strtok_r (tmp, ":", &ptr); - - while (prev != NULL) - { - hex_numbers++; - value = strtol (prev, &endptr, 16); - if ((value > 0xffff) || (value < 0) - || (endptr != NULL && *endptr != '\0')) { - ret = 0; - goto out; - } - - prev = strtok_r (NULL, ":", &ptr); - } - - if (hex_numbers > 8) { - ret = 0; - } - -out: - GF_FREE (tmp); - return ret; + char *transport_dup = NULL; + char *saveptr = NULL; + char *ptr = NULL; + int count = 0; + + if (transport_type == NULL) + return -1; + + transport_dup = gf_strdup(transport_type); + if (transport_dup == NULL) { + return -1; + } + + ptr = strtok_r(transport_dup, ",", &saveptr); + while (ptr != NULL) { + count++; + ptr = strtok_r(NULL, ",", &saveptr); + } + + GF_FREE(transport_dup); + return count; } - -static char -valid_internet_address (char *address) +int +rpc_transport_get_myaddr(rpc_transport_t *this, char *peeraddr, int addrlen, + struct sockaddr_storage *sa, size_t salen) { - char ret = 0; - int length = 0; + int32_t ret = -1; + GF_VALIDATE_OR_GOTO("rpc", this, out); - if (address == NULL) { - goto out; - } - - length = strlen (address); - if (length == 0) { - goto out; - } - - if (valid_ipv4_address (address, length) - || valid_ipv6_address (address, length) - || valid_host_name (address, length)) { - ret = 1; - } + ret = this->ops->get_myaddr(this, peeraddr, addrlen, sa, salen); out: - return ret; + return ret; } - -int -__volume_option_value_validate (char *name, - data_pair_t *pair, - volume_option_t *opt) +int32_t +rpc_transport_get_peername(rpc_transport_t *this, char *hostname, int hostlen) { - int i = 0; - int ret = -1; - uint64_t input_size = 0; - long long inputll = 0; - - /* Key is valid, validate the option */ - switch (opt->type) { - case GF_OPTION_TYPE_XLATOR: - break; - - case GF_OPTION_TYPE_PATH: - { - if (strstr (pair->value->data, "../")) { - gf_log (name, GF_LOG_ERROR, - "invalid path given '%s'", - pair->value->data); - ret = -1; - goto out; - } - - /* Make sure the given path is valid */ - if (pair->value->data[0] != '/') { - gf_log (name, GF_LOG_WARNING, - "option %s %s: '%s' is not an " - "absolute path name", - pair->key, pair->value->data, - pair->value->data); - } - ret = 0; - } - break; - case GF_OPTION_TYPE_INT: - { - /* Check the range */ - if (gf_string2longlong (pair->value->data, - &inputll) != 0) { - gf_log (name, GF_LOG_ERROR, - "invalid number format \"%s\" in " - "\"option %s\"", - pair->value->data, pair->key); - goto out; - } - - if ((opt->min == 0) && (opt->max == 0)) { - gf_log (name, GF_LOG_DEBUG, - "no range check required for " - "'option %s %s'", - pair->key, pair->value->data); - ret = 0; - break; - } - if ((inputll < opt->min) || - (inputll > opt->max)) { - gf_log (name, GF_LOG_WARNING, - "'%lld' in 'option %s %s' is out of " - "range [%"PRId64" - %"PRId64"]", - inputll, pair->key, - pair->value->data, - opt->min, opt->max); - } - ret = 0; - } - break; - case GF_OPTION_TYPE_SIZET: - { - /* Check the range */ - if (gf_string2bytesize (pair->value->data, - &input_size) != 0) { - gf_log (name, GF_LOG_ERROR, - "invalid size format \"%s\" in " - "\"option %s\"", - pair->value->data, pair->key); - goto out; - } - - if ((opt->min == 0) && (opt->max == 0)) { - gf_log (name, GF_LOG_DEBUG, - "no range check required for " - "'option %s %s'", - pair->key, pair->value->data); - ret = 0; - break; - } - if ((input_size < opt->min) || - (input_size > opt->max)) { - gf_log (name, GF_LOG_ERROR, - "'%"PRId64"' in 'option %s %s' is " - "out of range [%"PRId64" - %"PRId64"]", - input_size, pair->key, - pair->value->data, - opt->min, opt->max); - } - ret = 0; - } - break; - case GF_OPTION_TYPE_BOOL: - { - /* Check if the value is one of - '0|1|on|off|no|yes|true|false|enable|disable' */ - gf_boolean_t bool_value; - if (gf_string2boolean (pair->value->data, - &bool_value) != 0) { - gf_log (name, GF_LOG_ERROR, - "option %s %s: '%s' is not a valid " - "boolean value", - pair->key, pair->value->data, - pair->value->data); - goto out; - } - ret = 0; - } - break; - case GF_OPTION_TYPE_STR: - { - /* Check if the '*str' is valid */ - if (GF_OPTION_LIST_EMPTY(opt)) { - ret = 0; - goto out; - } - - for (i = 0; (i < ZR_OPTION_MAX_ARRAY_SIZE) && - opt->value[i]; i++) { - if (strcasecmp (opt->value[i], - pair->value->data) == 0) { - ret = 0; - break; - } - } - - if ((i == ZR_OPTION_MAX_ARRAY_SIZE) - || ((i < ZR_OPTION_MAX_ARRAY_SIZE) - && (!opt->value[i]))) { - /* enter here only if - * 1. reached end of opt->value array and haven't - * validated input - * OR - * 2. valid input list is less than - * ZR_OPTION_MAX_ARRAY_SIZE and input has not - * matched all possible input values. - */ - char given_array[4096] = {0,}; - for (i = 0; (i < ZR_OPTION_MAX_ARRAY_SIZE) && - opt->value[i]; i++) { - strcat (given_array, opt->value[i]); - strcat (given_array, ", "); - } - - gf_log (name, GF_LOG_ERROR, - "option %s %s: '%s' is not valid " - "(possible options are %s)", - pair->key, pair->value->data, - pair->value->data, given_array); - - goto out; - } - } - break; - case GF_OPTION_TYPE_PERCENT: - { - uint32_t percent = 0; - - - /* Check if the value is valid percentage */ - if (gf_string2percent (pair->value->data, - &percent) != 0) { - gf_log (name, GF_LOG_ERROR, - "invalid percent format \"%s\" " - "in \"option %s\"", - pair->value->data, pair->key); - goto out; - } - - if ((percent < 0) || (percent > 100)) { - gf_log (name, GF_LOG_ERROR, - "'%d' in 'option %s %s' is out of " - "range [0 - 100]", - percent, pair->key, - pair->value->data); - } - ret = 0; - } - break; - case GF_OPTION_TYPE_PERCENT_OR_SIZET: - { - uint32_t percent = 0; - uint64_t input_size = 0; - - /* Check if the value is valid percentage */ - if (gf_string2percent (pair->value->data, - &percent) == 0) { - if (percent > 100) { - gf_log (name, GF_LOG_DEBUG, - "value given was greater than 100, " - "assuming this is actually a size"); - if (gf_string2bytesize (pair->value->data, - &input_size) == 0) { - /* Check the range */ - if ((opt->min == 0) && - (opt->max == 0)) { - gf_log (name, GF_LOG_DEBUG, - "no range check " - "required for " - "'option %s %s'", - pair->key, - pair->value->data); - // It is a size - ret = 0; - goto out; - } - if ((input_size < opt->min) || - (input_size > opt->max)) { - gf_log (name, GF_LOG_ERROR, - "'%"PRId64"' in " - "'option %s %s' is out" - " of range [%"PRId64"" - "- %"PRId64"]", - input_size, pair->key, - pair->value->data, - opt->min, opt->max); - } - // It is a size - ret = 0; - goto out; - } else { - // It's not a percent or size - gf_log (name, GF_LOG_ERROR, - "invalid number format \"%s\" " - "in \"option %s\"", - pair->value->data, pair->key); - } - - } - // It is a percent - ret = 0; - goto out; - } else { - if (gf_string2bytesize (pair->value->data, - &input_size) == 0) { - /* Check the range */ - if ((opt->min == 0) && (opt->max == 0)) { - gf_log (name, GF_LOG_DEBUG, - "no range check required for " - "'option %s %s'", - pair->key, pair->value->data); - // It is a size - ret = 0; - goto out; - } - if ((input_size < opt->min) || - (input_size > opt->max)) { - gf_log (name, GF_LOG_ERROR, - "'%"PRId64"' in 'option %s %s'" - " is out of range [%"PRId64" -" - " %"PRId64"]", - input_size, pair->key, - pair->value->data, - opt->min, opt->max); - } - } else { - // It's not a percent or size - gf_log (name, GF_LOG_ERROR, - "invalid number format \"%s\" " - "in \"option %s\"", - pair->value->data, pair->key); - } - //It is a size - ret = 0; - goto out; - } - - } - break; - case GF_OPTION_TYPE_TIME: - { - uint32_t input_time = 0; - - /* Check if the value is valid percentage */ - if (gf_string2time (pair->value->data, - &input_time) != 0) { - gf_log (name, - GF_LOG_ERROR, - "invalid time format \"%s\" in " - "\"option %s\"", - pair->value->data, pair->key); - goto out; - } - - if ((opt->min == 0) && (opt->max == 0)) { - gf_log (name, GF_LOG_DEBUG, - "no range check required for " - "'option %s %s'", - pair->key, pair->value->data); - ret = 0; - goto out; - } - if ((input_time < opt->min) || - (input_time > opt->max)) { - gf_log (name, GF_LOG_ERROR, - "'%"PRIu32"' in 'option %s %s' is " - "out of range [%"PRId64" - %"PRId64"]", - input_time, pair->key, - pair->value->data, - opt->min, opt->max); - } - ret = 0; - } - break; - case GF_OPTION_TYPE_DOUBLE: - { - double input_time = 0.0; - - /* Check if the value is valid double */ - if (gf_string2double (pair->value->data, - &input_time) != 0) { - gf_log (name, - GF_LOG_ERROR, - "invalid time format \"%s\" in \"option %s\"", - pair->value->data, pair->key); - goto out; - } - - if (input_time < 0.0) { - gf_log (name, - GF_LOG_ERROR, - "invalid time format \"%s\" in \"option %s\"", - pair->value->data, pair->key); - goto out; - } - - if ((opt->min == 0) && (opt->max == 0)) { - gf_log (name, GF_LOG_DEBUG, - "no range check required for 'option %s %s'", - pair->key, pair->value->data); - ret = 0; - goto out; - } - ret = 0; - } - break; - case GF_OPTION_TYPE_INTERNET_ADDRESS: - { - if (valid_internet_address (pair->value->data)) { - ret = 0; - } - } - break; - case GF_OPTION_TYPE_ANY: - /* NO CHECK */ - ret = 0; - break; - } + int32_t ret = -1; + GF_VALIDATE_OR_GOTO("rpc", this, out); + ret = this->ops->get_peername(this, hostname, hostlen); out: - return ret; + return ret; } -/* FIXME: this procedure should be removed from transport */ int -validate_volume_options (char *name, dict_t *options, volume_option_t *opt) +rpc_transport_throttle(rpc_transport_t *this, gf_boolean_t onoff) { - int i = 0; - int ret = -1; - int index = 0; - volume_option_t *trav = NULL; - data_pair_t *pairs = NULL; - - if (!opt) { - ret = 0; - goto out; - } - - /* First search for not supported options, if any report error */ - pairs = options->members_list; - while (pairs) { - ret = -1; - for (index = 0; - opt[index].key && opt[index].key[0] ; index++) { - trav = &(opt[index]); - for (i = 0 ; - (i < ZR_VOLUME_MAX_NUM_KEY) && - trav->key[i]; i++) { - /* Check if the key is valid */ - if (fnmatch (trav->key[i], - pairs->key, FNM_NOESCAPE) == 0) { - ret = 0; - break; - } - } - if (!ret) { - if (i) { - gf_log (name, GF_LOG_WARNING, - "option '%s' is deprecated, " - "preferred is '%s', continuing" - " with correction", - trav->key[i], trav->key[0]); - /* TODO: some bytes lost */ - pairs->key = gf_strdup (trav->key[0]); - } - break; - } - } - if (!ret) { - ret = __volume_option_value_validate (name, pairs, trav); - if (-1 == ret) { - goto out; - } - } - - pairs = pairs->next; - } - - ret = 0; - out: - return ret; -} + if (!this->ops->throttle) + return -ENOSYS; -int32_t -rpc_transport_get_myaddr (rpc_transport_t *this, char *peeraddr, int addrlen, - struct sockaddr_storage *sa, size_t salen) -{ - if (!this) - return -1; - - return this->ops->get_myaddr (this, peeraddr, addrlen, sa, salen); -} - -int32_t -rpc_transport_get_myname (rpc_transport_t *this, char *hostname, int hostlen) -{ - if (!this) - return -1; - - return this->ops->get_myname (this, hostname, hostlen); + return this->ops->throttle(this, onoff); } int32_t -rpc_transport_get_peername (rpc_transport_t *this, char *hostname, int hostlen) +rpc_transport_get_peeraddr(rpc_transport_t *this, char *peeraddr, int addrlen, + struct sockaddr_storage *sa, size_t salen) { - if (!this) - return -1; - return this->ops->get_peername (this, hostname, hostlen); -} + int32_t ret = -1; + GF_VALIDATE_OR_GOTO("rpc", this, out); -int32_t -rpc_transport_get_peeraddr (rpc_transport_t *this, char *peeraddr, int addrlen, - struct sockaddr_storage *sa, size_t salen) -{ - if (!this) - return -1; - return this->ops->get_peeraddr (this, peeraddr, addrlen, sa, salen); + ret = this->ops->get_peeraddr(this, peeraddr, addrlen, sa, salen); +out: + return ret; } void -rpc_transport_pollin_destroy (rpc_transport_pollin_t *pollin) +rpc_transport_pollin_destroy(rpc_transport_pollin_t *pollin) { - if (!pollin) { - goto out; - } + GF_VALIDATE_OR_GOTO("rpc", pollin, out); - if (pollin->iobref) { - iobref_unref (pollin->iobref); - } - - if (pollin->private) { - /* */ - GF_FREE (pollin->private); - } + if (pollin->iobref) { + iobref_unref(pollin->iobref); + } + + if (pollin->private) { + /* */ + GF_FREE(pollin->private); + } - GF_FREE (pollin); + GF_FREE(pollin); out: - return; + return; } - rpc_transport_pollin_t * -rpc_transport_pollin_alloc (rpc_transport_t *this, struct iovec *vector, - int count, struct iobref *iobref, void *private) +rpc_transport_pollin_alloc(rpc_transport_t *this, struct iovec *vector, + int count, struct iobuf *hdr_iobuf, + struct iobref *iobref, void *private) { - rpc_transport_pollin_t *msg = NULL; - msg = GF_CALLOC (1, sizeof (*msg), gf_common_mt_rpc_trans_pollin_t); - if (!msg) { - gf_log ("rpc-transport", GF_LOG_ERROR, "out of memory"); - goto out; - } + rpc_transport_pollin_t *msg = NULL; + msg = GF_CALLOC(1, sizeof(*msg), gf_common_mt_rpc_trans_pollin_t); + if (!msg) { + goto out; + } - if (count == 2) { - msg->vectored = 1; - } + msg->trans = this; + + if (count > 1) { + msg->vectored = 1; + } - memcpy (msg->vector, vector, count * sizeof (*vector)); - msg->count = count; - msg->iobref = iobref_ref (iobref); - msg->private = private; + memcpy(msg->vector, vector, count * sizeof(*vector)); + msg->count = count; + msg->iobref = iobref_ref(iobref); + msg->private = private; + if (hdr_iobuf) + iobref_add(iobref, hdr_iobuf); out: - return msg; + return msg; } - -rpc_transport_pollin_t * -rpc_transport_same_process_pollin_alloc (rpc_transport_t *this, - struct iovec *rpchdr, int rpchdrcount, - struct iovec *proghdr, - int proghdrcount, - struct iovec *progpayload, - int progpayloadcount, - rpc_transport_rsp_t *rsp, - char is_request) +void +rpc_transport_cleanup(rpc_transport_t *trans) { - rpc_transport_pollin_t *msg = NULL; - int rpchdrlen = 0, proghdrlen = 0; - int progpayloadlen = 0; - char vectored = 0; - char *hdr = NULL, *progpayloadbuf = NULL; - struct iobuf *iobuf = NULL; - - if (!rpchdr || !proghdr) { - goto err; - } - - msg = GF_CALLOC (1, sizeof (*msg), gf_common_mt_rpc_trans_pollin_t); - if (!msg) { - gf_log ("rpc-transport", GF_LOG_ERROR, "out of memory"); - goto err; - } - - rpchdrlen = iov_length (rpchdr, rpchdrcount); - proghdrlen = iov_length (proghdr, proghdrcount); + if (!trans) + return; - if (progpayload) { - vectored = 1; - progpayloadlen = iov_length (progpayload, progpayloadcount); - } + if (trans->fini) + trans->fini(trans); - /* FIXME: we are assuming rpchdr and proghdr will fit into - * an iobuf (128KB) - */ - if ((rpchdrlen + proghdrlen) > this->ctx->page_size) { - gf_log ("rpc_transport", GF_LOG_DEBUG, "program hdr and rpc" - " hdr together combined (%d) is bigger than " - "iobuf size (%zu)", (rpchdrlen + proghdrlen), - this->ctx->page_size); - goto err; - } + if (trans->options) { + dict_unref(trans->options); + trans->options = NULL; + } - if (vectored) { - msg->iobref = iobref_new (); - if (!msg->iobref) { - gf_log ("rpc-transport", GF_LOG_ERROR, - "out of memory"); - goto err; - } - - iobuf = iobuf_get (this->ctx->iobuf_pool); - if (!iobuf) { - gf_log ("rpc_transport", GF_LOG_ERROR, - "out of memory"); - goto err; - } - - iobref_add (msg->iobref, iobuf); - iobuf_unref (iobuf); - - msg->vector[0].iov_len = rpchdrlen + proghdrlen; - msg->vector[0].iov_base = hdr = iobuf_ptr (iobuf); - - if (!is_request && rsp) { - msg->vector[1] = rsp->rsp_payload[0]; - progpayloadbuf = rsp->rsp_payload[0].iov_base; - } else { - iobuf = iobuf_get (this->ctx->iobuf_pool); - if (!iobuf) { - gf_log ("rpc_transport", GF_LOG_ERROR, - "out of memory"); - goto err; - } - - iobref_add (msg->iobref, iobuf); - iobuf_unref (iobuf); - - msg->vector[1].iov_base - = progpayloadbuf = iobuf_ptr (iobuf); - } - msg->vector[1].iov_len = progpayloadlen; - } else { - if (!is_request && rsp) { - /* FIXME: Assuming rspvec contains only one vector */ - hdr = rsp->rsphdr[0].iov_base; - msg->vector[0] = rsp->rsphdr[0]; - } else { - msg->iobref = iobref_new (); - if (!msg->iobref) { - gf_log ("rpc-transport", GF_LOG_ERROR, - "out of memory"); - goto err; - } - - iobuf = iobuf_get (this->ctx->iobuf_pool); - if (!iobuf) { - gf_log ("rpc_transport", GF_LOG_ERROR, - "out of memory"); - goto err; - } - - iobref_add (msg->iobref, iobuf); - iobuf_unref (iobuf); - - hdr = iobuf_ptr (iobuf); - msg->vector[0].iov_base = hdr; - } - - msg->vector[0].iov_len = rpchdrlen + proghdrlen; - } + GF_FREE(trans->name); - iov_unload (hdr, rpchdr, rpchdrcount); - hdr += rpchdrlen; - iov_unload (hdr, proghdr, proghdrcount); + if (trans->xl) + pthread_mutex_destroy(&trans->lock); - if (progpayload) { - iov_unload (progpayloadbuf, progpayload, - progpayloadcount); - } + if (trans->dl_handle) + dlclose(trans->dl_handle); - if (is_request) { - msg->private = rsp; - } - return msg; -err: - if (msg) { - rpc_transport_pollin_destroy (msg); - } - - return NULL; + GF_FREE(trans); } rpc_transport_t * -rpc_transport_load (glusterfs_ctx_t *ctx, dict_t *options, char *trans_name) +rpc_transport_load(glusterfs_ctx_t *ctx, dict_t *options, char *trans_name) { - struct rpc_transport *trans = NULL, *return_trans = NULL; - char *name = NULL; - void *handle = NULL; - char *type = NULL; - char str[] = "ERROR"; - int32_t ret = -1; - int8_t is_tcp = 0, is_unix = 0, is_ibsdp = 0; - volume_opt_list_t *vol_opt = NULL; - - GF_VALIDATE_OR_GOTO("rpc-transport", options, fail); - GF_VALIDATE_OR_GOTO("rpc-transport", ctx, fail); - GF_VALIDATE_OR_GOTO("rpc-transport", trans_name, fail); - - trans = GF_CALLOC (1, sizeof (struct rpc_transport), gf_common_mt_rpc_trans_t); - GF_VALIDATE_OR_GOTO("rpc-transport", trans, fail); - - trans->name = gf_strdup (trans_name); - GF_VALIDATE_OR_GOTO ("rpc-transport", trans->name, fail); - - trans->ctx = ctx; - type = str; - - /* Backward compatibility */ - ret = dict_get_str (options, "transport-type", &type); - if (ret < 0) { - ret = dict_set_str (options, "transport-type", "socket"); - if (ret < 0) - gf_log ("dict", GF_LOG_DEBUG, - "setting transport-type failed"); - gf_log ("rpc-transport", GF_LOG_WARNING, - "missing 'option transport-type'. defaulting to " - "\"socket\""); - } else { - { - /* Backword compatibility to handle * /client, - * * /server. - */ - char *tmp = strchr (type, '/'); - if (tmp) - *tmp = '\0'; - } - - is_tcp = strcmp (type, "tcp"); - is_unix = strcmp (type, "unix"); - is_ibsdp = strcmp (type, "ib-sdp"); - if ((is_tcp == 0) || - (is_unix == 0) || - (is_ibsdp == 0)) { - if (is_unix == 0) - ret = dict_set_str (options, - "transport.address-family", - "unix"); - if (is_ibsdp == 0) - ret = dict_set_str (options, - "transport.address-family", - "inet-sdp"); - - if (ret < 0) - gf_log ("dict", GF_LOG_DEBUG, - "setting address-family failed"); - - ret = dict_set_str (options, - "transport-type", "socket"); - if (ret < 0) - gf_log ("dict", GF_LOG_DEBUG, - "setting transport-type failed"); - } - } - - ret = dict_get_str (options, "transport-type", &type); - if (ret < 0) { - gf_log ("rpc-transport", GF_LOG_ERROR, - "'option transport-type <xx>' missing in volume '%s'", - trans_name); - goto fail; - } - - ret = gf_asprintf (&name, "%s/%s.so", RPC_TRANSPORTDIR, type); - if (-1 == ret) { - gf_log ("rpc-transport", GF_LOG_ERROR, "asprintf failed"); - goto fail; - } - gf_log ("rpc-transport", GF_LOG_DEBUG, - "attempt to load file %s", name); - - handle = dlopen (name, RTLD_NOW|RTLD_GLOBAL); - if (handle == NULL) { - gf_log ("rpc-transport", GF_LOG_ERROR, "%s", dlerror ()); - gf_log ("rpc-transport", GF_LOG_ERROR, - "volume '%s': transport-type '%s' is not valid or " - "not found on this machine", - trans_name, type); - goto fail; - } - - trans->ops = dlsym (handle, "tops"); - if (trans->ops == NULL) { - gf_log ("rpc-transport", GF_LOG_ERROR, - "dlsym (rpc_transport_ops) on %s", dlerror ()); - goto fail; - } - - trans->init = dlsym (handle, "init"); - if (trans->init == NULL) { - gf_log ("rpc-transport", GF_LOG_ERROR, - "dlsym (gf_rpc_transport_init) on %s", dlerror ()); - goto fail; - } - - trans->fini = dlsym (handle, "fini"); - if (trans->fini == NULL) { - gf_log ("rpc-transport", GF_LOG_ERROR, - "dlsym (gf_rpc_transport_fini) on %s", dlerror ()); - goto fail; - } - - vol_opt = GF_CALLOC (1, sizeof (volume_opt_list_t), - gf_common_mt_volume_opt_list_t); - if (!vol_opt) { - gf_log (trans_name, GF_LOG_ERROR, "out of memory"); - goto fail; - } - - vol_opt->given_opt = dlsym (handle, "options"); - if (vol_opt->given_opt == NULL) { - gf_log ("rpc-transport", GF_LOG_DEBUG, - "volume option validation not specified"); - } else { - /* FIXME: is adding really needed? */ - /* list_add_tail (&vol_opt->list, &xl->volume_options); */ - if (-1 == - validate_volume_options (trans_name, options, - vol_opt->given_opt)) { - gf_log ("rpc-transport", GF_LOG_ERROR, - "volume option validation failed"); - goto fail; - } - } - - ret = trans->init (trans); - if (ret != 0) { - gf_log ("rpc-transport", GF_LOG_ERROR, - "'%s' initialization failed", type); - goto fail; - } - - trans->options = options; - - pthread_mutex_init (&trans->lock, NULL); - trans->xl = THIS; - return_trans = trans; - - if (name) { - GF_FREE (name); - } - - GF_FREE (vol_opt); - return return_trans; + struct rpc_transport *trans = NULL, *return_trans = NULL; + char *name = NULL; + void *handle = NULL; + char *type = NULL; + static char str[] = "ERROR"; + int32_t ret = -1; + int is_tcp = 0, is_unix = 0, is_ibsdp = 0; + volume_opt_list_t *vol_opt = NULL; + gf_boolean_t bind_insecure = _gf_false; + xlator_t *this = NULL; + gf_boolean_t success = _gf_false; + + GF_VALIDATE_OR_GOTO("rpc-transport", options, fail); + GF_VALIDATE_OR_GOTO("rpc-transport", ctx, fail); + GF_VALIDATE_OR_GOTO("rpc-transport", trans_name, fail); + + trans = GF_CALLOC(1, sizeof(struct rpc_transport), + gf_common_mt_rpc_trans_t); + if (!trans) + goto fail; + + trans->name = gf_strdup(trans_name); + if (!trans->name) + goto fail; + + trans->ctx = ctx; + type = str; + + /* Backward compatibility */ + ret = dict_get_str_sizen(options, "transport-type", &type); + if (ret < 0) { + ret = dict_set_str_sizen(options, "transport-type", "socket"); + if (ret < 0) + gf_log("dict", GF_LOG_DEBUG, "setting transport-type failed"); + else + gf_log("rpc-transport", GF_LOG_DEBUG, + "missing 'option transport-type'. defaulting to " + "\"socket\""); + } else { + { + /* Backward compatibility to handle * /client, + * * /server. + */ + char *tmp = strchr(type, '/'); + if (tmp) + *tmp = '\0'; + } + + is_tcp = strcmp(type, "tcp"); + is_unix = strcmp(type, "unix"); + is_ibsdp = strcmp(type, "ib-sdp"); + if ((is_tcp == 0) || (is_unix == 0) || (is_ibsdp == 0)) { + if (is_unix == 0) + ret = dict_set_str_sizen(options, "transport.address-family", + "unix"); + if (is_ibsdp == 0) + ret = dict_set_str_sizen(options, "transport.address-family", + "inet-sdp"); + + if (ret < 0) + gf_log("dict", GF_LOG_DEBUG, "setting address-family failed"); + + ret = dict_set_str_sizen(options, "transport-type", "socket"); + if (ret < 0) + gf_log("dict", GF_LOG_DEBUG, "setting transport-type failed"); + } + } + + /* client-bind-insecure is for clients protocol, and + * bind-insecure for glusterd. Both mutually exclusive + */ + ret = dict_get_str_sizen(options, "client-bind-insecure", &type); + if (ret) + ret = dict_get_str_sizen(options, "bind-insecure", &type); + if (ret == 0) { + ret = gf_string2boolean(type, &bind_insecure); + if (ret < 0) { + gf_log("rcp-transport", GF_LOG_WARNING, + "bind-insecure option %s is not a" + " valid bool option", + type); + goto fail; + } + if (_gf_true == bind_insecure) + trans->bind_insecure = 1; + else + trans->bind_insecure = 0; + } else { + /* By default allow bind insecure */ + trans->bind_insecure = 1; + } + + ret = dict_get_str_sizen(options, "transport-type", &type); + if (ret < 0) { + gf_log("rpc-transport", GF_LOG_ERROR, + "'option transport-type <xx>' missing in volume '%s'", + trans_name); + goto fail; + } + + ret = gf_asprintf(&name, "%s/%s.so", RPC_TRANSPORTDIR, type); + if (-1 == ret) { + goto fail; + } + + if (dict_get_sizen(options, "notify-poller-death")) { + trans->notify_poller_death = 1; + } + + gf_log("rpc-transport", GF_LOG_DEBUG, "attempt to load file %s", name); + + handle = dlopen(name, RTLD_NOW); + if (handle == NULL) { + gf_log("rpc-transport", GF_LOG_ERROR, "%s", dlerror()); + gf_log("rpc-transport", GF_LOG_WARNING, + "volume '%s': transport-type '%s' is not valid or " + "not found on this machine", + trans_name, type); + goto fail; + } + + trans->dl_handle = handle; + + trans->ops = dlsym(handle, "tops"); + if (trans->ops == NULL) { + gf_log("rpc-transport", GF_LOG_ERROR, "dlsym (rpc_transport_ops) on %s", + dlerror()); + goto fail; + } + + *VOID(&(trans->init)) = dlsym(handle, "init"); + if (trans->init == NULL) { + gf_log("rpc-transport", GF_LOG_ERROR, + "dlsym (gf_rpc_transport_init) on %s", dlerror()); + goto fail; + } + + *VOID(&(trans->fini)) = dlsym(handle, "fini"); + if (trans->fini == NULL) { + gf_log("rpc-transport", GF_LOG_ERROR, + "dlsym (gf_rpc_transport_fini) on %s", dlerror()); + goto fail; + } + + *VOID(&(trans->reconfigure)) = dlsym(handle, "reconfigure"); + if (trans->reconfigure == NULL) { + gf_log("rpc-transport", GF_LOG_DEBUG, + "dlsym (gf_rpc_transport_reconfigure) on %s", dlerror()); + } + + vol_opt = GF_CALLOC(1, sizeof(volume_opt_list_t), + gf_common_mt_volume_opt_list_t); + if (!vol_opt) { + goto fail; + } + + this = THIS; + vol_opt->given_opt = dlsym(handle, "options"); + if (vol_opt->given_opt == NULL) { + gf_log("rpc-transport", GF_LOG_DEBUG, + "volume option validation not specified"); + } else { + INIT_LIST_HEAD(&vol_opt->list); + list_add_tail(&vol_opt->list, &(this->volume_options)); + if (xlator_options_validate_list(this, options, vol_opt, NULL)) { + gf_log("rpc-transport", GF_LOG_ERROR, + "volume option validation failed"); + goto fail; + } + } + + trans->options = dict_ref(options); + + pthread_mutex_init(&trans->lock, NULL); + trans->xl = this; + + ret = trans->init(trans); + if (ret != 0) { + gf_log("rpc-transport", GF_LOG_WARNING, "'%s' initialization failed", + type); + goto fail; + } + + INIT_LIST_HEAD(&trans->list); + GF_ATOMIC_INIT(trans->disconnect_progress, 0); + + return_trans = trans; + + GF_FREE(name); + + success = _gf_true; fail: - if (trans) { - if (trans->name) { - GF_FREE (trans->name); - } - - GF_FREE (trans); - } + if (!success) { + rpc_transport_cleanup(trans); + GF_FREE(name); - if (vol_opt) { - GF_FREE (vol_opt); - } + return_trans = NULL; + } - if (name) { - GF_FREE (name); + if (vol_opt) { + if (!list_empty(&vol_opt->list)) { + list_del_init(&vol_opt->list); } + GF_FREE(vol_opt); + } - return NULL; + return return_trans; } - int32_t -rpc_transport_submit_request (rpc_transport_t *this, rpc_transport_req_t *req) +rpc_transport_submit_request(rpc_transport_t *this, rpc_transport_req_t *req) { - int32_t ret = -1; + int32_t ret = -1; - GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); - GF_VALIDATE_OR_GOTO("rpc_transport", this->ops, fail); + GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); + GF_VALIDATE_OR_GOTO("rpc_transport", this->ops, fail); - ret = this->ops->submit_request (this, req); + ret = this->ops->submit_request(this, req); fail: - return ret; + return ret; } - int32_t -rpc_transport_submit_reply (rpc_transport_t *this, rpc_transport_reply_t *reply) +rpc_transport_submit_reply(rpc_transport_t *this, rpc_transport_reply_t *reply) { - int32_t ret = -1; + int32_t ret = -1; - GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); - GF_VALIDATE_OR_GOTO("rpc_transport", this->ops, fail); + GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); + GF_VALIDATE_OR_GOTO("rpc_transport", this->ops, fail); - ret = this->ops->submit_reply (this, reply); + ret = this->ops->submit_reply(this, reply); fail: - return ret; + return ret; } - int32_t -rpc_transport_connect (rpc_transport_t *this, int port) +rpc_transport_connect(rpc_transport_t *this, int port) { - int ret = -1; + int ret = -1; - GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); + GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); - ret = this->ops->connect (this, port); + ret = this->ops->connect(this, port); fail: - return ret; + return ret; } - int32_t -rpc_transport_listen (rpc_transport_t *this) +rpc_transport_listen(rpc_transport_t *this) { - int ret = -1; + int ret = -1; - GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); + GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); - ret = this->ops->listen (this); + ret = this->ops->listen(this); fail: - return ret; + return ret; } - int32_t -rpc_transport_disconnect (rpc_transport_t *this) +rpc_transport_disconnect(rpc_transport_t *this, gf_boolean_t wait) { - int32_t ret = -1; + int32_t ret = -1; + + GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); - GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); + ret = this->ops->disconnect(this, wait); - ret = this->ops->disconnect (this); fail: - return ret; + return ret; } - -int32_t -rpc_transport_destroy (rpc_transport_t *this) +static void +rpc_transport_destroy(rpc_transport_t *this) { - int32_t ret = -1; + struct dnscache6 *cache = NULL; - GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); + if (this->clnt_options) + dict_unref(this->clnt_options); + if (this->options) + dict_unref(this->options); + if (this->fini) + this->fini(this); - if (this->fini) - this->fini (this); + pthread_mutex_destroy(&this->lock); - pthread_mutex_destroy (&this->lock); + GF_FREE(this->name); - if (this->name) - GF_FREE (this->name); + if (this->dl_handle) + dlclose(this->dl_handle); - GF_FREE (this); -fail: - return ret; -} + if (this->ssl_name) { + GF_FREE(this->ssl_name); + } + if (this->dnscache) { + cache = this->dnscache; + if (cache->first) + freeaddrinfo(cache->first); + GF_FREE(this->dnscache); + } + + GF_FREE(this); +} rpc_transport_t * -rpc_transport_ref (rpc_transport_t *this) +rpc_transport_ref(rpc_transport_t *this) { - rpc_transport_t *return_this = NULL; + rpc_transport_t *return_this = NULL; - GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); + GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); - pthread_mutex_lock (&this->lock); - { - this->refcount ++; - } - pthread_mutex_unlock (&this->lock); + GF_ATOMIC_INC(this->refcount); - return_this = this; + return_this = this; fail: - return return_this; + return return_this; } - int32_t -rpc_transport_unref (rpc_transport_t *this) +rpc_transport_unref(rpc_transport_t *this) { - int32_t refcount = 0; - int32_t ret = -1; + int32_t refcount = 0; + int32_t ret = -1; - GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); + GF_VALIDATE_OR_GOTO("rpc_transport", this, fail); - pthread_mutex_lock (&this->lock); - { - refcount = --this->refcount; - } - pthread_mutex_unlock (&this->lock); + refcount = GF_ATOMIC_DEC(this->refcount); - if (refcount == 0) { - /* xlator_notify (this->xl, GF_EVENT_RPC_TRANSPORT_CLEANUP, - this); */ - rpc_transport_destroy (this); - } + if (refcount == 0) { + if (this->mydata) + this->notify(this, this->mydata, RPC_TRANSPORT_CLEANUP, NULL); + this->mydata = NULL; + this->notify = NULL; + rpc_transport_destroy(this); + } - ret = 0; + ret = 0; fail: - return ret; + return ret; } - int32_t -rpc_transport_notify (rpc_transport_t *this, rpc_transport_event_t event, - void *data, ...) +rpc_transport_notify(rpc_transport_t *this, rpc_transport_event_t event, + void *data, ...) { - int32_t ret = -1; + int32_t ret = -1; + GF_VALIDATE_OR_GOTO("rpc", this, out); - if (this == NULL) { - goto out; - } - - if (this->notify != NULL) { - ret = this->notify (this, this->mydata, event, data); - } else { - ret = 0; - } + if (this->notify != NULL) { + ret = this->notify(this, this->mydata, event, data); + } else { + ret = 0; + } out: - return ret; + return ret; } +int +rpc_transport_register_notify(rpc_transport_t *trans, + rpc_transport_notify_t notify, void *mydata) +{ + int32_t ret = -1; + GF_VALIDATE_OR_GOTO("rpc", trans, out); + + trans->notify = notify; + trans->mydata = mydata; + ret = 0; +out: + return ret; +} -inline int -rpc_transport_register_notify (rpc_transport_t *trans, - rpc_transport_notify_t notify, void *mydata) +// give negative values to skip setting that value +// this function asserts if both the values are negative. +// why call it if you don't set it. +int +rpc_transport_keepalive_options_set(dict_t *options, int32_t interval, + int32_t time, int32_t timeout) { - int ret = -1; + int ret = -1; - if (trans == NULL) { - goto out; - } + GF_ASSERT(options); + GF_ASSERT((interval > 0) || (time > 0)); - trans->notify = notify; - trans->mydata = mydata; + ret = dict_set_int32_sizen(options, "transport.socket.keepalive-interval", + interval); + if (ret) + goto out; - ret = 0; + ret = dict_set_int32_sizen(options, "transport.socket.keepalive-time", + time); + if (ret) + goto out; + + ret = dict_set_int32_sizen(options, "transport.tcp-user-timeout", timeout); + if (ret) + goto out; +out: + return ret; +} + +int +rpc_transport_unix_options_build(dict_t *dict, char *filepath, + int frame_timeout) +{ + char *fpath = NULL; + int ret = -1; + + GF_ASSERT(filepath); + GF_VALIDATE_OR_GOTO("rpc-transport", dict, out); + + fpath = gf_strdup(filepath); + if (!fpath) { + ret = -1; + goto out; + } + + ret = dict_set_dynstr_sizen(dict, "transport.socket.connect-path", fpath); + if (ret) { + GF_FREE(fpath); + goto out; + } + + ret = dict_set_str_sizen(dict, "transport.address-family", "unix"); + if (ret) + goto out; + + ret = dict_set_str_sizen(dict, "transport.socket.nodelay", "off"); + if (ret) + goto out; + + ret = dict_set_str_sizen(dict, "transport-type", "socket"); + if (ret) + goto out; + + ret = dict_set_str_sizen(dict, "transport.socket.keepalive", "off"); + if (ret) + goto out; + + if (frame_timeout > 0) { + ret = dict_set_int32_sizen(dict, "frame-timeout", frame_timeout); + if (ret) + goto out; + } +out: + return ret; +} + +int +rpc_transport_inet_options_build(dict_t *dict, const char *hostname, int port, + char *af) +{ + char *host = NULL; + int ret = -1; +#ifdef IPV6_DEFAULT + static char *addr_family = "inet6"; +#else + static char *addr_family = "inet"; +#endif + + GF_ASSERT(hostname); + GF_ASSERT(port >= 1024); + GF_VALIDATE_OR_GOTO("rpc-transport", dict, out); + + host = gf_strdup((char *)hostname); + if (!host) { + ret = -1; + goto out; + } + + ret = dict_set_dynstr_sizen(dict, "remote-host", host); + if (ret) { + gf_log(THIS->name, GF_LOG_WARNING, "failed to set remote-host with %s", + host); + GF_FREE(host); + goto out; + } + + ret = dict_set_int32_sizen(dict, "remote-port", port); + if (ret) { + gf_log(THIS->name, GF_LOG_WARNING, "failed to set remote-port with %d", + port); + goto out; + } + + ret = dict_set_str_sizen(dict, "address-family", + (af != NULL ? af : addr_family)); + if (ret) { + gf_log(THIS->name, GF_LOG_WARNING, "failed to set address-family to %s", + addr_family); + goto out; + } + + ret = dict_set_str_sizen(dict, "transport-type", "socket"); + if (ret) { + gf_log(THIS->name, GF_LOG_WARNING, + "failed to set trans-type with socket"); + goto out; + } out: - return ret; + return ret; } diff --git a/rpc/rpc-lib/src/rpc-transport.h b/rpc/rpc-lib/src/rpc-transport.h index 2ba46fba9f7..c499f0bb955 100644 --- a/rpc/rpc-lib/src/rpc-transport.h +++ b/rpc/rpc-lib/src/rpc-transport.h @@ -1,30 +1,16 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ #ifndef __RPC_TRANSPORT_H__ #define __RPC_TRANSPORT_H__ -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - #include <inttypes.h> #ifdef GF_SOLARIS_HOST_OS #include <rpc/auth.h> @@ -38,11 +24,15 @@ #define MAX_IOVEC 16 #endif +#ifndef AI_ADDRCONFIG +#define AI_ADDRCONFIG 0 +#endif /* AI_ADDRCONFIG */ + /* Given the 4-byte fragment header, returns non-zero if this fragment - * is the last fragment for the RPC record being assemebled. + * is the last fragment for the RPC record being assembled. * RPC Record marking standard defines a 32 bit value as the fragment * header with the MSB signifying whether the fragment is the last - * fragment for the record being asembled. + * fragment for the record being assembled. */ #define RPC_LASTFRAG(fraghdr) ((uint32_t)(fraghdr & 0x80000000U)) @@ -51,39 +41,45 @@ */ #define RPC_FRAGSIZE(fraghdr) ((uint32_t)(fraghdr & 0x7fffffffU)) -#define RPC_FRAGHDR_SIZE 4 -#define RPC_MSGTYPE_SIZE 8 +#define RPC_FRAGHDR_SIZE 4 +#define RPC_MSGTYPE_SIZE 8 /* size of the msg from the start of call-body till and including credlen */ -#define RPC_CALL_BODY_SIZE 24 +#define RPC_CALL_BODY_SIZE 24 -#define RPC_REPLY_STATUS_SIZE 4 +#define RPC_REPLY_STATUS_SIZE 4 #define RPC_AUTH_FLAVOUR_N_LENGTH_SIZE 8 -#define RPC_ACCEPT_STATUS_LEN 4 +#define RPC_ACCEPT_STATUS_LEN 4 struct rpc_transport_ops; typedef struct rpc_transport rpc_transport_t; -#include "dict.h" -#include "compat.h" +#include <glusterfs/dict.h> +#include <glusterfs/compat.h> +#include <glusterfs/async.h> #include "rpcsvc-common.h" struct peer_info { - struct sockaddr_storage sockaddr; - socklen_t sockaddr_len; - char identifier[UNIX_PATH_MAX]; + // OP-VERSION of clients + uint32_t max_op_version; + uint32_t min_op_version; + struct sockaddr_storage sockaddr; + socklen_t sockaddr_len; + char identifier[UNIX_PATH_MAX]; + // Volume mounted by client + char volname[NAME_MAX]; }; typedef struct peer_info peer_info_t; typedef enum msg_type msg_type_t; typedef enum { - RPC_TRANSPORT_ACCEPT, /* New client has been accepted */ - RPC_TRANSPORT_DISCONNECT, /* Connection is disconnected */ - RPC_TRANSPORT_CLEANUP, /* connection is about to be freed */ - /*RPC_TRANSPORT_READ,*/ /* An event used to enable rpcsvc to instruct + RPC_TRANSPORT_ACCEPT, /* New client has been accepted */ + RPC_TRANSPORT_DISCONNECT, /* Connection is disconnected */ + RPC_TRANSPORT_CLEANUP, /* connection is about to be freed */ + /*RPC_TRANSPORT_READ,*/ /* An event used to enable rpcsvc to instruct * transport the number of bytes to read. * This helps in reading large msgs, wherein * the rpc actors might decide to place the @@ -95,54 +91,55 @@ typedef enum { * reading a single msg, this event may be * delivered more than once. */ - RPC_TRANSPORT_MAP_XID_REQUEST, /* reciever of this event should send - * the prognum and procnum corresponding - * to xid. - */ - RPC_TRANSPORT_MSG_RECEIVED, /* Complete rpc msg has been read */ - RPC_TRANSPORT_CONNECT, /* client is connected to server */ - RPC_TRANSPORT_MSG_SENT, + RPC_TRANSPORT_MAP_XID_REQUEST, /* receiver of this event should send + * the prognum and procnum corresponding + * to xid. + */ + RPC_TRANSPORT_MSG_RECEIVED, /* Complete rpc msg has been read */ + RPC_TRANSPORT_CONNECT, /* client is connected to server */ + RPC_TRANSPORT_MSG_SENT, + RPC_TRANSPORT_EVENT_THREAD_DIED /* event-thread has died */ } rpc_transport_event_t; struct rpc_transport_msg { - struct iovec *rpchdr; - int rpchdrcount; - struct iovec *proghdr; - int proghdrcount; - struct iovec *progpayload; - int progpayloadcount; - struct iobref *iobref; + struct iovec *rpchdr; + struct iovec *proghdr; + int rpchdrcount; + int proghdrcount; + struct iovec *progpayload; + struct iobref *iobref; + int progpayloadcount; }; typedef struct rpc_transport_msg rpc_transport_msg_t; struct rpc_transport_rsp { - struct iovec *rsphdr; - int rsphdr_count; - struct iovec *rsp_payload; - int rsp_payload_count; - struct iobref *rsp_iobref; + struct iovec *rsphdr; + struct iovec *rsp_payload; + int rsphdr_count; + int rsp_payload_count; + struct iobref *rsp_iobref; }; typedef struct rpc_transport_rsp rpc_transport_rsp_t; struct rpc_transport_req { - rpc_transport_msg_t msg; - rpc_transport_rsp_t rsp; - struct rpc_req *rpc_req; + struct rpc_req *rpc_req; + rpc_transport_msg_t msg; + rpc_transport_rsp_t rsp; }; typedef struct rpc_transport_req rpc_transport_req_t; struct rpc_transport_reply { - rpc_transport_msg_t msg; - void *private; + void *private; + rpc_transport_msg_t msg; }; typedef struct rpc_transport_reply rpc_transport_reply_t; struct rpc_transport_data { - char is_request; - union { - rpc_transport_req_t req; - rpc_transport_reply_t reply; - } data; + union { + rpc_transport_req_t req; + rpc_transport_reply_t reply; + } data; + char is_request; }; typedef struct rpc_transport_data rpc_transport_data_t; @@ -150,138 +147,166 @@ typedef struct rpc_transport_data rpc_transport_data_t; * rpc_request, hence these should be removed from request_info */ struct rpc_request_info { - uint32_t xid; - int prognum; - int progver; - int procnum; - void *rpc_req; /* struct rpc_req */ - rpc_transport_rsp_t rsp; + int prognum; + int progver; + void *rpc_req; /* struct rpc_req */ + rpc_transport_rsp_t rsp; + int procnum; + uint32_t xid; }; typedef struct rpc_request_info rpc_request_info_t; +typedef int (*rpc_transport_notify_t)(rpc_transport_t *, void *mydata, + rpc_transport_event_t, void *data, ...); -struct rpc_transport_pollin { - struct iovec vector[2]; - int count; - char vectored; - void *private; - struct iobref *iobref; - char is_reply; +struct rpc_transport { + struct rpc_transport_ops *ops; + rpc_transport_t *listener; /* listener transport to which + * request for creation of this + * transport came from. valid only + * on server process. + */ + + void *private; + struct _client *xl_private; + void *xl; /* Used for THIS */ + void *mydata; + pthread_mutex_t lock; + gf_atomic_t refcount; + glusterfs_ctx_t *ctx; + dict_t *options; + char *name; + void *dnscache; + void *drc_client; + data_t *buf; + int32_t (*init)(rpc_transport_t *this); + void (*fini)(rpc_transport_t *this); + int (*reconfigure)(rpc_transport_t *this, dict_t *options); + rpc_transport_notify_t notify; + void *notify_data; + peer_info_t peerinfo; + peer_info_t myinfo; + + uint64_t total_bytes_read; + uint64_t total_bytes_write; + uint32_t xid; /* RPC/XID used for callbacks */ + int32_t outstanding_rpc_count; + + struct list_head list; + void *dl_handle; /* handle of dlopen() */ + char *ssl_name; + dict_t *clnt_options; /* store options received from + * client */ + gf_atomic_t disconnect_progress; + int bind_insecure; + /* connect_failed: saves the connect() syscall status as socket_t + * member holding connect() status can't be accessed by higher gfapi + * layer or in client management notification handler functions + */ + gf_boolean_t connect_failed; + char notify_poller_death; + char poller_death_accept; }; -typedef struct rpc_transport_pollin rpc_transport_pollin_t; -typedef int (*rpc_transport_notify_t) (rpc_transport_t *, void *mydata, - rpc_transport_event_t, void *data, ...); -struct rpc_transport { - struct rpc_transport_ops *ops; - rpc_transport_t *listener; /* listener transport to which - * request for creation of this - * transport came from. valid only - * on server process. - */ - void *private; - void *xl_private; - void *xl; /* Used for THIS */ - void *mydata; - pthread_mutex_t lock; - int32_t refcount; - - glusterfs_ctx_t *ctx; - dict_t *options; - char *name; - void *dnscache; - data_t *buf; - int32_t (*init) (rpc_transport_t *this); - void (*fini) (rpc_transport_t *this); - rpc_transport_notify_t notify; - void *notify_data; - peer_info_t peerinfo; - peer_info_t myinfo; - - uint64_t total_bytes_read; - uint64_t total_bytes_write; - - struct list_head list; +struct rpc_transport_pollin { + struct rpc_transport *trans; + void *private; + struct iobref *iobref; + struct iovec vector[MAX_IOVEC]; + gf_async_t async; + int count; + char is_reply; + char vectored; }; +typedef struct rpc_transport_pollin rpc_transport_pollin_t; struct rpc_transport_ops { - /* no need of receive op, msg will be delivered through an event - * notification - */ - int32_t (*submit_request) (rpc_transport_t *this, - rpc_transport_req_t *req); - int32_t (*submit_reply) (rpc_transport_t *this, - rpc_transport_reply_t *reply); - int32_t (*connect) (rpc_transport_t *this, int port); - int32_t (*listen) (rpc_transport_t *this); - int32_t (*disconnect) (rpc_transport_t *this); - int32_t (*get_peername) (rpc_transport_t *this, char *hostname, - int hostlen); - int32_t (*get_peeraddr) (rpc_transport_t *this, char *peeraddr, - int addrlen, struct sockaddr_storage *sa, - socklen_t sasize); - int32_t (*get_myname) (rpc_transport_t *this, char *hostname, - int hostlen); - int32_t (*get_myaddr) (rpc_transport_t *this, char *peeraddr, - int addrlen, struct sockaddr_storage *sa, - socklen_t sasize); + /* no need of receive op, msg will be delivered through an event + * notification + */ + int32_t (*submit_request)(rpc_transport_t *this, rpc_transport_req_t *req); + int32_t (*submit_reply)(rpc_transport_t *this, + rpc_transport_reply_t *reply); + int32_t (*connect)(rpc_transport_t *this, int port); + int32_t (*listen)(rpc_transport_t *this); + int32_t (*disconnect)(rpc_transport_t *this, gf_boolean_t wait); + int32_t (*get_peername)(rpc_transport_t *this, char *hostname, int hostlen); + int32_t (*get_peeraddr)(rpc_transport_t *this, char *peeraddr, int addrlen, + struct sockaddr_storage *sa, socklen_t sasize); + int32_t (*get_myname)(rpc_transport_t *this, char *hostname, int hostlen); + int32_t (*get_myaddr)(rpc_transport_t *this, char *peeraddr, int addrlen, + struct sockaddr_storage *sa, socklen_t sasize); + int32_t (*throttle)(rpc_transport_t *this, gf_boolean_t onoff); }; - int32_t -rpc_transport_listen (rpc_transport_t *this); +rpc_transport_count(const char *transport_type); int32_t -rpc_transport_connect (rpc_transport_t *this, int port); +rpc_transport_listen(rpc_transport_t *this); int32_t -rpc_transport_disconnect (rpc_transport_t *this); +rpc_transport_connect(rpc_transport_t *this, int port); int32_t -rpc_transport_notify (rpc_transport_t *this, rpc_transport_event_t event, - void *data, ...); +rpc_transport_disconnect(rpc_transport_t *this, gf_boolean_t wait); int32_t -rpc_transport_submit_request (rpc_transport_t *this, rpc_transport_req_t *req); +rpc_transport_notify(rpc_transport_t *this, rpc_transport_event_t event, + void *data, ...); int32_t -rpc_transport_submit_reply (rpc_transport_t *this, - rpc_transport_reply_t *reply); +rpc_transport_submit_request(rpc_transport_t *this, rpc_transport_req_t *req); int32_t -rpc_transport_destroy (rpc_transport_t *this); +rpc_transport_submit_reply(rpc_transport_t *this, rpc_transport_reply_t *reply); rpc_transport_t * -rpc_transport_load (glusterfs_ctx_t *ctx, dict_t *options, char *name); +rpc_transport_load(glusterfs_ctx_t *ctx, dict_t *options, char *name); rpc_transport_t * -rpc_transport_ref (rpc_transport_t *trans); +rpc_transport_ref(rpc_transport_t *trans); int32_t -rpc_transport_unref (rpc_transport_t *trans); +rpc_transport_unref(rpc_transport_t *trans); int -rpc_transport_register_notify (rpc_transport_t *trans, rpc_transport_notify_t, - void *mydata); +rpc_transport_register_notify(rpc_transport_t *trans, rpc_transport_notify_t, + void *mydata); int32_t -rpc_transport_get_peername (rpc_transport_t *this, char *hostname, int hostlen); +rpc_transport_get_peername(rpc_transport_t *this, char *hostname, int hostlen); int32_t -rpc_transport_get_peeraddr (rpc_transport_t *this, char *peeraddr, int addrlen, - struct sockaddr_storage *sa, size_t salen); +rpc_transport_get_peeraddr(rpc_transport_t *this, char *peeraddr, int addrlen, + struct sockaddr_storage *sa, size_t salen); int32_t -rpc_transport_get_myname (rpc_transport_t *this, char *hostname, int hostlen); +rpc_transport_get_myaddr(rpc_transport_t *this, char *peeraddr, int addrlen, + struct sockaddr_storage *sa, size_t salen); -int32_t -rpc_transport_get_myaddr (rpc_transport_t *this, char *peeraddr, int addrlen, - struct sockaddr_storage *sa, size_t salen); +int +rpc_transport_throttle(rpc_transport_t *this, gf_boolean_t onoff); rpc_transport_pollin_t * -rpc_transport_pollin_alloc (rpc_transport_t *this, struct iovec *vector, - int count, struct iobref *iobref, void *private); +rpc_transport_pollin_alloc(rpc_transport_t *this, struct iovec *vector, + int count, struct iobuf *hdr_iobuf, + struct iobref *iobref, void *private); void -rpc_transport_pollin_destroy (rpc_transport_pollin_t *pollin); +rpc_transport_pollin_destroy(rpc_transport_pollin_t *pollin); + +int +rpc_transport_keepalive_options_set(dict_t *options, int32_t interval, + int32_t time, int32_t timeout); + +int +rpc_transport_unix_options_build(dict_t *options, char *filepath, + int frame_timeout); +int +rpc_transport_inet_options_build(dict_t *options, const char *hostname, + int port, char *af); + +void +rpc_transport_cleanup(rpc_transport_t *); #endif /* __RPC_TRANSPORT_H__ */ diff --git a/rpc/rpc-lib/src/rpcsvc-auth.c b/rpc/rpc-lib/src/rpcsvc-auth.c index 5cfa255ba95..8e76b4188bb 100644 --- a/rpc/rpc-lib/src/rpcsvc-auth.c +++ b/rpc/rpc-lib/src/rpcsvc-auth.c @@ -1,421 +1,561 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ #include "rpcsvc.h" -#include "logging.h" -#include "dict.h" +#include <glusterfs/dict.h> extern rpcsvc_auth_t * -rpcsvc_auth_null_init (rpcsvc_t *svc, dict_t *options); +rpcsvc_auth_null_init(rpcsvc_t *svc, dict_t *options); extern rpcsvc_auth_t * -rpcsvc_auth_unix_init (rpcsvc_t *svc, dict_t *options); +rpcsvc_auth_unix_init(rpcsvc_t *svc, dict_t *options); extern rpcsvc_auth_t * -rpcsvc_auth_glusterfs_init (rpcsvc_t *svc, dict_t *options); +rpcsvc_auth_glusterfs_init(rpcsvc_t *svc, dict_t *options); +extern rpcsvc_auth_t * +rpcsvc_auth_glusterfs_v2_init(rpcsvc_t *svc, dict_t *options); +extern rpcsvc_auth_t * +rpcsvc_auth_glusterfs_v3_init(rpcsvc_t *svc, dict_t *options); int -rpcsvc_auth_add_initer (struct list_head *list, char *idfier, - rpcsvc_auth_initer_t init) +rpcsvc_auth_add_initer(struct list_head *list, char *idfier, + rpcsvc_auth_initer_t init) { - struct rpcsvc_auth_list *new = NULL; + struct rpcsvc_auth_list *new = NULL; - if ((!list) || (!init) || (!idfier)) - return -1; + if ((!list) || (!init) || (!idfier)) + return -1; - new = GF_CALLOC (1, sizeof (*new), gf_common_mt_rpcsvc_auth_list); - if (!new) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Memory allocation failed"); - return -1; - } + new = GF_CALLOC(1, sizeof(*new), gf_common_mt_rpcsvc_auth_list); + if (!new) { + return -1; + } - new->init = init; - strcpy (new->name, idfier); - INIT_LIST_HEAD (&new->authlist); - list_add_tail (&new->authlist, list); - return 0; + new->init = init; + strncpy(new->name, idfier, sizeof(new->name) - 1); + INIT_LIST_HEAD(&new->authlist); + list_add_tail(&new->authlist, list); + return 0; } - - int -rpcsvc_auth_add_initers (rpcsvc_t *svc) +rpcsvc_auth_add_initers(rpcsvc_t *svc) { - int ret = -1; - - ret = rpcsvc_auth_add_initer (&svc->authschemes, "auth-glusterfs", - (rpcsvc_auth_initer_t) - rpcsvc_auth_glusterfs_init); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to add AUTH_GLUSTERFS"); - goto err; - } - - ret = rpcsvc_auth_add_initer (&svc->authschemes, "auth-unix", - (rpcsvc_auth_initer_t) - rpcsvc_auth_unix_init); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to add AUTH_UNIX"); - goto err; - } - - ret = rpcsvc_auth_add_initer (&svc->authschemes, "auth-null", - (rpcsvc_auth_initer_t) - rpcsvc_auth_null_init); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to add AUTH_NULL"); - goto err; - } - - ret = 0; + int ret = -1; + + ret = rpcsvc_auth_add_initer( + &svc->authschemes, "auth-glusterfs", + (rpcsvc_auth_initer_t)rpcsvc_auth_glusterfs_init); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Failed to add AUTH_GLUSTERFS"); + goto err; + } + + ret = rpcsvc_auth_add_initer( + &svc->authschemes, "auth-glusterfs-v2", + (rpcsvc_auth_initer_t)rpcsvc_auth_glusterfs_v2_init); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Failed to add AUTH_GLUSTERFS-v2"); + goto err; + } + + ret = rpcsvc_auth_add_initer( + &svc->authschemes, "auth-glusterfs-v3", + (rpcsvc_auth_initer_t)rpcsvc_auth_glusterfs_v3_init); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Failed to add AUTH_GLUSTERFS-v3"); + goto err; + } + + ret = rpcsvc_auth_add_initer(&svc->authschemes, "auth-unix", + (rpcsvc_auth_initer_t)rpcsvc_auth_unix_init); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Failed to add AUTH_UNIX"); + goto err; + } + + ret = rpcsvc_auth_add_initer(&svc->authschemes, "auth-null", + (rpcsvc_auth_initer_t)rpcsvc_auth_null_init); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Failed to add AUTH_NULL"); + goto err; + } + + ret = 0; err: - return ret; + return ret; } - int -rpcsvc_auth_init_auth (rpcsvc_t *svc, dict_t *options, - struct rpcsvc_auth_list *authitem) +rpcsvc_auth_init_auth(rpcsvc_t *svc, dict_t *options, + struct rpcsvc_auth_list *authitem) { - int ret = -1; - - if ((!svc) || (!options) || (!authitem)) - return -1; - - if (!authitem->init) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "No init function defined"); - ret = -1; - goto err; - } + int ret = -1; + + if ((!svc) || (!options) || (!authitem)) + return -1; + + if (!authitem->init) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "No init function defined"); + ret = -1; + goto err; + } + + authitem->auth = authitem->init(svc, options); + if (!authitem->auth) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Registration of auth failed:" + " %s", + authitem->name); + ret = -1; + goto err; + } + + authitem->enable = 1; + gf_log(GF_RPCSVC, GF_LOG_TRACE, "Authentication enabled: %s", + authitem->auth->authname); + + ret = 0; +err: + return ret; +} - authitem->auth = authitem->init (svc, options); - if (!authitem->auth) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Registration of auth failed:" - " %s", authitem->name); - ret = -1; - goto err; - } +int +rpcsvc_auth_init_auths(rpcsvc_t *svc, dict_t *options) +{ + int ret = -1; + struct rpcsvc_auth_list *auth = NULL; + struct rpcsvc_auth_list *tmp = NULL; - authitem->enable = 1; - gf_log (GF_RPCSVC, GF_LOG_TRACE, "Authentication enabled: %s", - authitem->auth->authname); + if (!svc) + return -1; + if (list_empty(&svc->authschemes)) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, "No authentication!"); ret = 0; + goto err; + } + + /* If auth null and sys are not disabled by the user, we must enable + * it by default. This is a globally default rule, the user is still + * allowed to disable the two for particular subvolumes. + */ + if (!dict_get(options, "rpc-auth.auth-null")) { + ret = dict_set_str(options, "rpc-auth.auth-null", "on"); + if (ret) + gf_log("rpc-auth", GF_LOG_DEBUG, "dict_set failed for 'auth-nill'"); + } + + if (!dict_get(options, "rpc-auth.auth-unix")) { + ret = dict_set_str(options, "rpc-auth.auth-unix", "on"); + if (ret) + gf_log("rpc-auth", GF_LOG_DEBUG, "dict_set failed for 'auth-unix'"); + } + + if (!dict_get(options, "rpc-auth.auth-glusterfs")) { + ret = dict_set_str(options, "rpc-auth.auth-glusterfs", "on"); + if (ret) + gf_log("rpc-auth", GF_LOG_DEBUG, "dict_set failed for 'auth-unix'"); + } + + list_for_each_entry_safe(auth, tmp, &svc->authschemes, authlist) + { + ret = rpcsvc_auth_init_auth(svc, options, auth); + if (ret == -1) + goto err; + } + + ret = 0; err: - return ret; + return ret; } - int -rpcsvc_auth_init_auths (rpcsvc_t *svc, dict_t *options) +rpcsvc_set_addr_namelookup(rpcsvc_t *svc, dict_t *options) { - int ret = -1; - struct rpcsvc_auth_list *auth = NULL; - struct rpcsvc_auth_list *tmp = NULL; - - if (!svc) - return -1; + int ret; + static char *addrlookup_key = "rpc-auth.addr.namelookup"; - if (list_empty (&svc->authschemes)) { - gf_log (GF_RPCSVC, GF_LOG_WARNING, "No authentication!"); - ret = 0; - goto err; - } + if (!svc || !options) + return (-1); - /* If auth null and sys are not disabled by the user, we must enable - * it by default. This is a globally default rule, the user is still - * allowed to disable the two for particular subvolumes. - */ - if (!dict_get (options, "rpc-auth.auth-null")) { - ret = dict_set_str (options, "rpc-auth.auth-null", "on"); - if (ret) - gf_log ("rpc-auth", GF_LOG_DEBUG, - "dict_set failed for 'auth-nill'"); - } + /* By default it's disabled */ + ret = dict_get_str_boolean(options, addrlookup_key, _gf_false); + if (ret < 0) { + svc->addr_namelookup = _gf_false; + } else { + svc->addr_namelookup = ret; + } - if (!dict_get (options, "rpc-auth.auth-unix")) { - ret = dict_set_str (options, "rpc-auth.auth-unix", "on"); - if (ret) - gf_log ("rpc-auth", GF_LOG_DEBUG, - "dict_set failed for 'auth-unix'"); - } + if (svc->addr_namelookup) + gf_log(GF_RPCSVC, GF_LOG_DEBUG, "Addr-Name lookup enabled"); - if (!dict_get (options, "rpc-auth.auth-glusterfs")) { - ret = dict_set_str (options, "rpc-auth.auth-glusterfs", "on"); - if (ret) - gf_log ("rpc-auth", GF_LOG_DEBUG, - "dict_set failed for 'auth-unix'"); - } + return (0); +} - list_for_each_entry_safe (auth, tmp, &svc->authschemes, authlist) { - ret = rpcsvc_auth_init_auth (svc, options, auth); - if (ret == -1) - goto err; +int +rpcsvc_set_allow_insecure(rpcsvc_t *svc, dict_t *options) +{ + int ret = -1; + char *allow_insecure_str = NULL; + gf_boolean_t is_allow_insecure = _gf_false; + + GF_ASSERT(svc); + GF_ASSERT(options); + + ret = dict_get_str(options, "rpc-auth-allow-insecure", &allow_insecure_str); + if (0 == ret) { + ret = gf_string2boolean(allow_insecure_str, &is_allow_insecure); + if (0 == ret) { + if (_gf_true == is_allow_insecure) + svc->allow_insecure = 1; + else + svc->allow_insecure = 0; } + } else { + /* By default set allow-insecure to true */ + svc->allow_insecure = 1; - ret = 0; -err: - return ret; + /* setting in options for the sake of functions that look + * configuration params for allow insecure, eg: gf_auth + */ + ret = dict_set_str(options, "rpc-auth-allow-insecure", "on"); + if (ret < 0) + gf_log("rpc-auth", GF_LOG_DEBUG, + "dict_set failed for 'allow-insecure'"); + } + return ret; } int -rpcsvc_auth_init (rpcsvc_t *svc, dict_t *options) +rpcsvc_set_root_squash(rpcsvc_t *svc, dict_t *options) { - int ret = -1; - - if ((!svc) || (!options)) - return -1; + int ret = -1; + uid_t anonuid = -1; + gid_t anongid = -1; + + GF_ASSERT(svc); + GF_ASSERT(options); + + ret = dict_get_str_boolean(options, "root-squash", 0); + if (ret != -1) + svc->root_squash = ret; + else + svc->root_squash = _gf_false; + + ret = dict_get_uint32(options, "anonuid", &anonuid); + if (!ret) + svc->anonuid = anonuid; + else + svc->anonuid = RPC_NOBODY_UID; + + ret = dict_get_uint32(options, "anongid", &anongid); + if (!ret) + svc->anongid = anongid; + else + svc->anongid = RPC_NOBODY_GID; + + if (svc->root_squash) + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "root squashing enabled " + "(uid=%d, gid=%d)", + svc->anonuid, svc->anongid); + + return 0; +} - ret = rpcsvc_auth_add_initers (svc); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to add initers"); - goto out; - } +int +rpcsvc_set_all_squash(rpcsvc_t *svc, dict_t *options) +{ + int ret = -1; + + uid_t anonuid = -1; + gid_t anongid = -1; + + GF_ASSERT(svc); + GF_ASSERT(options); + + ret = dict_get_str_boolean(options, "all-squash", 0); + if (ret != -1) + svc->all_squash = ret; + else + svc->all_squash = _gf_false; + + ret = dict_get_uint32(options, "anonuid", &anonuid); + if (!ret) + svc->anonuid = anonuid; + else + svc->anonuid = RPC_NOBODY_UID; + + ret = dict_get_uint32(options, "anongid", &anongid); + if (!ret) + svc->anongid = anongid; + else + svc->anongid = RPC_NOBODY_GID; + + if (svc->all_squash) + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "all squashing enabled " + "(uid=%d, gid=%d)", + svc->anonuid, svc->anongid); + + return 0; +} - ret = rpcsvc_auth_init_auths (svc, options); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to init auth schemes"); - goto out; - } +int +rpcsvc_auth_init(rpcsvc_t *svc, dict_t *options) +{ + int ret = -1; + + if ((!svc) || (!options)) + return -1; + + (void)rpcsvc_set_allow_insecure(svc, options); + (void)rpcsvc_set_root_squash(svc, options); + (void)rpcsvc_set_all_squash(svc, options); + (void)rpcsvc_set_addr_namelookup(svc, options); + ret = rpcsvc_auth_add_initers(svc); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Failed to add initers"); + goto out; + } + + ret = rpcsvc_auth_init_auths(svc, options); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Failed to init auth schemes"); + goto out; + } out: - return ret; + return ret; } - -rpcsvc_auth_t * -__rpcsvc_auth_get_handler (rpcsvc_request_t *req) +int +rpcsvc_auth_reconf(rpcsvc_t *svc, dict_t *options) { - struct rpcsvc_auth_list *auth = NULL; - struct rpcsvc_auth_list *tmp = NULL; - rpcsvc_t *svc = NULL; + int ret = 0; - if (!req) - return NULL; + if ((!svc) || (!options)) + return (-1); - svc = req->svc; - if (!svc) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "!svc"); - goto err; - } + ret = rpcsvc_set_allow_insecure(svc, options); + if (ret) + return (-1); - if (list_empty (&svc->authschemes)) { - gf_log (GF_RPCSVC, GF_LOG_WARNING, "No authentication!"); - goto err; - } + ret = rpcsvc_set_root_squash(svc, options); + if (ret) + return (-1); - list_for_each_entry_safe (auth, tmp, &svc->authschemes, authlist) { - if (!auth->enable) - continue; - if (auth->auth->authnum == req->cred.flavour) - goto err; + ret = rpcsvc_set_all_squash(svc, options); + if (ret) + return (-1); - } + return rpcsvc_set_addr_namelookup(svc, options); +} - auth = NULL; +rpcsvc_auth_t * +__rpcsvc_auth_get_handler(rpcsvc_request_t *req) +{ + struct rpcsvc_auth_list *auth = NULL; + struct rpcsvc_auth_list *tmp = NULL; + rpcsvc_t *svc = NULL; + + if (!req) + return NULL; + + svc = req->svc; + if (!svc) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "!svc"); + goto err; + } + + if (list_empty(&svc->authschemes)) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, "No authentication!"); + goto err; + } + + list_for_each_entry_safe(auth, tmp, &svc->authschemes, authlist) + { + if (!auth->enable) + continue; + if (auth->auth->authnum == req->cred.flavour) + goto err; + } + + auth = NULL; err: - if (auth) - return auth->auth; - else - return NULL; + if (auth) + return auth->auth; + else + return NULL; } rpcsvc_auth_t * -rpcsvc_auth_get_handler (rpcsvc_request_t *req) +rpcsvc_auth_get_handler(rpcsvc_request_t *req) { - rpcsvc_auth_t *auth = NULL; + rpcsvc_auth_t *auth = NULL; - auth = __rpcsvc_auth_get_handler (req); - if (auth) - goto ret; + auth = __rpcsvc_auth_get_handler(req); + if (auth) + goto ret; - gf_log (GF_RPCSVC, GF_LOG_TRACE, "No auth handler: %d", - req->cred.flavour); + gf_log(GF_RPCSVC, GF_LOG_TRACE, "No auth handler: %d", req->cred.flavour); - /* The requested scheme was not available so fall back the to one - * scheme that will always be present. - */ - req->cred.flavour = AUTH_NULL; - req->verf.flavour = AUTH_NULL; - auth = __rpcsvc_auth_get_handler (req); + /* The requested scheme was not available so fall back the to one + * scheme that will always be present. + */ + req->cred.flavour = AUTH_NULL; + req->verf.flavour = AUTH_NULL; + auth = __rpcsvc_auth_get_handler(req); ret: - return auth; + return auth; } - int -rpcsvc_auth_request_init (rpcsvc_request_t *req) +rpcsvc_auth_request_init(rpcsvc_request_t *req, struct rpc_msg *callmsg) { - int ret = -1; - rpcsvc_auth_t *auth = NULL; - - if (!req) - return -1; - - auth = rpcsvc_auth_get_handler (req); - if (!auth) - goto err; - ret = 0; - gf_log (GF_RPCSVC, GF_LOG_TRACE, "Auth handler: %s", auth->authname); - if (!auth->authops->request_init) - ret = auth->authops->request_init (req, auth->authprivate); - + int32_t ret = 0; + rpcsvc_auth_t *auth = NULL; + + if (!req || !callmsg) { + ret = -1; + goto err; + } + + req->cred.flavour = rpc_call_cred_flavour(callmsg); + req->cred.datalen = rpc_call_cred_len(callmsg); + req->verf.flavour = rpc_call_verf_flavour(callmsg); + req->verf.datalen = rpc_call_verf_len(callmsg); + + auth = rpcsvc_auth_get_handler(req); + if (!auth) { + ret = -1; + goto err; + } + + gf_log(GF_RPCSVC, GF_LOG_TRACE, "Auth handler: %s", auth->authname); + + if (auth->authops->request_init) + ret = auth->authops->request_init(req, auth->authprivate); + + /* reset to auxgidlarge during + unsersialize if necessary */ + req->auxgids = req->auxgidsmall; + req->auxgidlarge = NULL; err: - return ret; + return ret; } - int -rpcsvc_authenticate (rpcsvc_request_t *req) +rpcsvc_authenticate(rpcsvc_request_t *req) { - int ret = RPCSVC_AUTH_REJECT; - rpcsvc_auth_t *auth = NULL; - int minauth = 0; - - if (!req) - return ret; - - //minauth = rpcsvc_request_prog_minauth (req); - minauth = 1; - if (minauth > rpcsvc_request_cred_flavour (req)) { - gf_log (GF_RPCSVC, GF_LOG_DEBUG, "Auth too weak"); - rpcsvc_request_set_autherr (req, AUTH_TOOWEAK); - goto err; - } + int ret = RPCSVC_AUTH_REJECT; + rpcsvc_auth_t *auth = NULL; + int minauth = 0; - auth = rpcsvc_auth_get_handler (req); - if (!auth) { - gf_log (GF_RPCSVC, GF_LOG_DEBUG, "No auth handler found"); - goto err; - } + if (!req) + return ret; + + /* FIXME use rpcsvc_request_prog_minauth() */ + minauth = 0; + if (minauth > rpcsvc_request_cred_flavour(req)) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, "Auth too weak"); + rpcsvc_request_set_autherr(req, AUTH_TOOWEAK); + goto err; + } - if (auth->authops->authenticate) - ret = auth->authops->authenticate (req, auth->authprivate); + auth = rpcsvc_auth_get_handler(req); + if (!auth) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, "No auth handler found"); + goto err; + } + + if (auth->authops->authenticate) + ret = auth->authops->authenticate(req, auth->authprivate); err: - return ret; + return ret; } - int -rpcsvc_auth_array (rpcsvc_t *svc, char *volname, int *autharr, int arrlen) +rpcsvc_auth_array(rpcsvc_t *svc, char *volname, int *autharr, int arrlen) { - int count = 0; - int gen = RPCSVC_AUTH_REJECT; - int spec = RPCSVC_AUTH_REJECT; - int final = RPCSVC_AUTH_REJECT; - char *srchstr = NULL; - char *valstr = NULL; - gf_boolean_t boolval = _gf_false; - int ret = 0; - - struct rpcsvc_auth_list *auth = NULL; - struct rpcsvc_auth_list *tmp = NULL; - - if ((!svc) || (!autharr) || (!volname)) - return -1; - - memset (autharr, 0, arrlen * sizeof(int)); - if (list_empty (&svc->authschemes)) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "No authentication!"); - goto err; + int count = 0; + int result = RPCSVC_AUTH_REJECT; + char *srchstr = NULL; + int ret = 0; + + struct rpcsvc_auth_list *auth = NULL; + struct rpcsvc_auth_list *tmp = NULL; + + if ((!svc) || (!autharr) || (!volname)) + return -1; + + memset(autharr, 0, arrlen * sizeof(int)); + if (list_empty(&svc->authschemes)) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "No authentication!"); + goto err; + } + + list_for_each_entry_safe(auth, tmp, &svc->authschemes, authlist) + { + if (count >= arrlen) + break; + + result = gf_asprintf(&srchstr, "rpc-auth.%s.%s", auth->name, volname); + if (result == -1) { + count = -1; + goto err; } - list_for_each_entry_safe (auth, tmp, &svc->authschemes, authlist) { - if (count >= arrlen) - break; - - gen = gf_asprintf (&srchstr, "rpc-auth.%s", auth->name); - if (gen == -1) { - count = -1; - goto err; - } - - gen = RPCSVC_AUTH_REJECT; - if (dict_get (svc->options, srchstr)) { - ret = dict_get_str (svc->options, srchstr, &valstr); - if (ret == 0) { - ret = gf_string2boolean (valstr, &boolval); - if (ret == 0) { - if (boolval == _gf_true) - gen = RPCSVC_AUTH_ACCEPT; - } else - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Faile" - "d to read auth val"); - } else - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Faile" - "d to read auth val"); - } - - GF_FREE (srchstr); - spec = gf_asprintf (&srchstr, "rpc-auth.%s.%s", auth->name, - volname); - if (spec == -1) { - count = -1; - goto err; - } - - spec = RPCSVC_AUTH_DONTCARE; - if (dict_get (svc->options, srchstr)) { - ret = dict_get_str (svc->options, srchstr, &valstr); - if (ret == 0) { - ret = gf_string2boolean (valstr, &boolval); - if (ret == 0) { - if (boolval == _gf_true) - spec = RPCSVC_AUTH_ACCEPT; - else - spec = RPCSVC_AUTH_REJECT; - } else - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Faile" - "d to read auth val"); - } else - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Faile" - "d to read auth val"); - } - - GF_FREE (srchstr); - final = rpcsvc_combine_gen_spec_volume_checks (gen, spec); - if (final == RPCSVC_AUTH_ACCEPT) { - autharr[count] = auth->auth->authnum; - ++count; - } + ret = dict_get_str_boolean(svc->options, srchstr, 0xC00FFEE); + GF_FREE(srchstr); + + switch (ret) { + case _gf_true: + autharr[count] = auth->auth->authnum; + ++count; + break; + + default: + /* nothing to do */ + break; } + } err: - return count; + return count; } - gid_t * -rpcsvc_auth_unix_auxgids (rpcsvc_request_t *req, int *arrlen) +rpcsvc_auth_unix_auxgids(rpcsvc_request_t *req, int *arrlen) { - if ((!req) || (!arrlen)) - return NULL; - - if ((req->cred.flavour != AUTH_UNIX) || - (req->cred.flavour != AUTH_GLUSTERFS)) - return NULL; - - *arrlen = req->auxgidcount; - if (*arrlen == 0) - return NULL; - - return &req->auxgids[0]; + if ((!req) || (!arrlen)) + return NULL; + + /* In case of AUTH_NULL auxgids are not used */ + switch (req->cred.flavour) { + case AUTH_UNIX: + case AUTH_GLUSTERFS: + case AUTH_GLUSTERFS_v2: + case AUTH_GLUSTERFS_v3: + break; + default: + gf_log("rpc", GF_LOG_DEBUG, "auth type not unix or glusterfs"); + return NULL; + } + + *arrlen = req->auxgidcount; + if (*arrlen == 0) + return NULL; + + return &req->auxgids[0]; } diff --git a/rpc/rpc-lib/src/rpcsvc-common.h b/rpc/rpc-lib/src/rpcsvc-common.h index 7e72bc3ae44..6c4ec49a6ef 100644 --- a/rpc/rpc-lib/src/rpcsvc-common.h +++ b/rpc/rpc-lib/src/rpcsvc-common.h @@ -1,81 +1,113 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ #ifndef _RPCSVC_COMMON_H #define _RPCSVC_COMMON_H #include <pthread.h> -#include "list.h" -#include "compat.h" -#include "glusterfs.h" -#include "dict.h" +#include <glusterfs/compat.h> +#include <glusterfs/dict.h> typedef enum { - RPCSVC_EVENT_ACCEPT, - RPCSVC_EVENT_DISCONNECT, - RPCSVC_EVENT_LISTENER_DEAD, + RPCSVC_EVENT_ACCEPT, + RPCSVC_EVENT_DISCONNECT, + RPCSVC_EVENT_TRANSPORT_DESTROY, + RPCSVC_EVENT_LISTENER_DEAD, } rpcsvc_event_t; - struct rpcsvc_state; -typedef int (*rpcsvc_notify_t) (struct rpcsvc_state *, void *mydata, - rpcsvc_event_t, void *data); +typedef int (*rpcsvc_notify_t)(struct rpcsvc_state *, void *mydata, + rpcsvc_event_t, void *data); +struct drc_globals; +typedef struct drc_globals rpcsvc_drc_globals_t; /* Contains global state required for all the RPC services. */ typedef struct rpcsvc_state { + /* Contains list of (program, version) handlers. + * other options. + */ + + pthread_rwlock_t rpclock; + + /* List of the authentication schemes available. */ + struct list_head authschemes; + + /* Reference to the options */ + dict_t *options; + + uid_t anonuid; + gid_t anongid; + glusterfs_ctx_t *ctx; + + /* list of connections which will listen for incoming connections */ + struct list_head listeners; + + /* list of programs registered with rpcsvc */ + struct list_head programs; + + /* list of notification callbacks */ + struct list_head notify; + int notify_count; + + unsigned int memfactor; + + xlator_t *xl; /* xlator */ + void *mydata; + rpcsvc_notify_t notifyfn; + struct mem_pool *rxpool; + rpcsvc_drc_globals_t *drc; + + /* per-client limit of outstanding rpc requests */ + int outstanding_rpc_limit; + gf_boolean_t addr_namelookup; + /* determine whether throttling is needed, by default OFF */ + gf_boolean_t throttle; + /* Allow insecure ports. */ + gf_boolean_t allow_insecure; + gf_boolean_t register_portmap; + gf_boolean_t root_squash; + gf_boolean_t all_squash; +} rpcsvc_t; - /* Contains list of (program, version) handlers. - * other options. - */ - - pthread_mutex_t rpclock; - - unsigned int memfactor; - - /* List of the authentication schemes available. */ - struct list_head authschemes; - - /* Reference to the options */ - dict_t *options; +/* DRC START */ +enum drc_op_type { DRC_NA = 0, DRC_IDEMPOTENT = 1, DRC_NON_IDEMPOTENT = 2 }; +typedef enum drc_op_type drc_op_type_t; - /* Allow insecure ports. */ - int allow_insecure; +enum drc_type { DRC_TYPE_NONE = 0, DRC_TYPE_IN_MEMORY = 1 }; +typedef enum drc_type drc_type_t; - glusterfs_ctx_t *ctx; +enum drc_lru_factor { + DRC_LRU_5_PC = 20, + DRC_LRU_10_PC = 10, + DRC_LRU_25_PC = 4, + DRC_LRU_50_PC = 2 +}; +typedef enum drc_lru_factor drc_lru_factor_t; - /* list of connections which will listen for incoming connections */ - struct list_head listeners; +enum drc_xid_state { DRC_XID_MONOTONOUS = 0, DRC_XID_WRAPPED = 1 }; +typedef enum drc_xid_state drc_xid_state_t; - /* list of programs registered with rpcsvc */ - struct list_head programs; +enum drc_op_state { DRC_OP_IN_TRANSIT = 0, DRC_OP_CACHED = 1 }; +typedef enum drc_op_state drc_op_state_t; - /* list of notification callbacks */ - struct list_head notify; - int notify_count; +enum drc_policy { DRC_LRU = 0 }; +typedef enum drc_policy drc_policy_t; - void *mydata; /* This is xlator */ - rpcsvc_notify_t notifyfn; - struct mem_pool *rxpool; -} rpcsvc_t; +/* Default policies for DRC */ +#define DRC_DEFAULT_TYPE DRC_TYPE_IN_MEMORY +#define DRC_DEFAULT_CACHE_SIZE 0x20000 +#define DRC_DEFAULT_LRU_FACTOR DRC_LRU_25_PC +/* DRC END */ #endif /* #ifndef _RPCSVC_COMMON_H */ diff --git a/rpc/rpc-lib/src/rpcsvc.c b/rpc/rpc-lib/src/rpcsvc.c index 030e23db74d..39910d481bf 100644 --- a/rpc/rpc-lib/src/rpcsvc.c +++ b/rpc/rpc-lib/src/rpcsvc.c @@ -1,39 +1,27 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - #include "rpcsvc.h" #include "rpc-transport.h" -#include "dict.h" -#include "logging.h" -#include "byte-order.h" -#include "common-utils.h" -#include "compat-errno.h" -#include "list.h" +#include <glusterfs/dict.h> +#include <glusterfs/byte-order.h> +#include <glusterfs/compat-errno.h> +#include <glusterfs/statedump.h> #include "xdr-rpc.h" -#include "iobuf.h" -#include "globals.h" +#include <glusterfs/iobuf.h> #include "xdr-common.h" +#include "xdr-generic.h" +#include "rpc-common-xdr.h" +#include <glusterfs/syncop.h> +#include "rpc-drc.h" +#include "protocol-common.h" #include <errno.h> #include <pthread.h> @@ -45,1354 +33,1364 @@ #include <fnmatch.h> #include <stdarg.h> #include <stdio.h> +#include <dlfcn.h> -#include "xdr-rpcclnt.h" - -struct rpcsvc_program gluster_dump_prog; - -#define rpcsvc_alloc_request(svc, request) \ - do { \ - request = (rpcsvc_request_t *) mem_get ((svc)->rxpool); \ - memset (request, 0, sizeof (rpcsvc_request_t)); \ - } while (0) - -rpcsvc_listener_t * -rpcsvc_get_listener (rpcsvc_t *svc, uint16_t port, rpc_transport_t *trans); - -int -rpcsvc_transport_peer_check_search (dict_t *options, char *pattern, char *clstr) -{ - int ret = -1; - char *addrtok = NULL; - char *addrstr = NULL; - char *svptr = NULL; - - if ((!options) || (!clstr)) - return -1; - - if (!dict_get (options, pattern)) - return -1; - - ret = dict_get_str (options, pattern, &addrstr); - if (ret < 0) { - ret = -1; - goto err; - } - - if (!addrstr) { - ret = -1; - goto err; - } +#ifdef IPV6_DEFAULT +#include <netconfig.h> +#endif - addrtok = strtok_r (addrstr, ",", &svptr); - while (addrtok) { +#include "xdr-rpcclnt.h" +#include <glusterfs/glusterfs-acl.h> -#ifdef FNM_CASEFOLD - ret = fnmatch (addrtok, clstr, FNM_CASEFOLD); -#else - ret = fnmatch (addrtok, clstr, 0); +#ifndef PTHREAD_MUTEX_ADAPTIVE_NP +#define PTHREAD_MUTEX_ADAPTIVE_NP PTHREAD_MUTEX_DEFAULT #endif - if (ret == 0) - goto err; - addrtok = strtok_r (NULL, ",", &svptr); - } +static struct rpcsvc_program gluster_dump_prog; - ret = -1; -err: - - return ret; -} +#define rpcsvc_alloc_request(svc, request) \ + do { \ + request = (rpcsvc_request_t *)mem_get((svc)->rxpool); \ + if (request) { \ + memset(request, 0, sizeof(rpcsvc_request_t)); \ + } else { \ + gf_log("rpcsvc", GF_LOG_ERROR, \ + "error getting memory for rpc request"); \ + } \ + } while (0) +rpcsvc_listener_t * +rpcsvc_get_listener(rpcsvc_t *svc, uint16_t port, rpc_transport_t *trans); int -rpcsvc_transport_peer_check_allow (dict_t *options, char *volname, char *clstr) -{ - int ret = RPCSVC_AUTH_DONTCARE; - char *srchstr = NULL; - char globalrule[] = "rpc-auth.addr.allow"; - - if ((!options) || (!clstr)) - return ret; +rpcsvc_notify(rpc_transport_t *trans, void *mydata, rpc_transport_event_t event, + void *data, ...); +void * +rpcsvc_request_handler(void *arg); - /* If volname is NULL, then we're searching for the general rule to - * determine the current address in clstr is allowed or not for all - * subvolumes. - */ - if (volname) { - ret = gf_asprintf (&srchstr, "rpc-auth.addr.%s.allow", volname); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); - ret = RPCSVC_AUTH_DONTCARE; - goto out; - } - } else - srchstr = globalrule; +static int +rpcsvc_match_subnet_v4(const char *addrtok, const char *ipaddr); - ret = rpcsvc_transport_peer_check_search (options, srchstr, clstr); - if (volname) - GF_FREE (srchstr); +static void +rpcsvc_toggle_queue_status(rpcsvc_program_t *prog, + rpcsvc_request_queue_t *queue, + unsigned long status[]) +{ + unsigned queue_index = queue - prog->request_queue; - if (ret == 0) - ret = RPCSVC_AUTH_ACCEPT; - else - ret = RPCSVC_AUTH_DONTCARE; -out: - return ret; + status[queue_index / __BITS_PER_LONG] ^= (1UL << (queue_index % + __BITS_PER_LONG)); } int -rpcsvc_transport_peer_check_reject (dict_t *options, char *volname, char *clstr) +rpcsvc_get_free_queue_index(rpcsvc_program_t *prog) { - int ret = RPCSVC_AUTH_DONTCARE; - char *srchstr = NULL; - char generalrule[] = "rpc-auth.addr.reject"; - - if ((!options) || (!clstr)) - return ret; + unsigned i, j = 0; - if (volname) { - ret = gf_asprintf (&srchstr, "rpc-auth.addr.%s.reject", volname); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); - ret = RPCSVC_AUTH_REJECT; - goto out; - } - } else - srchstr = generalrule; + for (i = 0; i < EVENT_MAX_THREADS / __BITS_PER_LONG; i++) + if (prog->request_queue_status[i] != ULONG_MAX) { + j = __builtin_ctzl(~prog->request_queue_status[i]); + break; + } - ret = rpcsvc_transport_peer_check_search (options, srchstr, clstr); - if (volname) - GF_FREE (srchstr); + if (i == EVENT_MAX_THREADS / __BITS_PER_LONG) + return -1; - if (ret == 0) - ret = RPCSVC_AUTH_REJECT; - else - ret = RPCSVC_AUTH_DONTCARE; -out: - return ret; + prog->request_queue_status[i] |= (1UL << j); + return i * __BITS_PER_LONG + j; } - -/* This function tests the results of the allow rule and the reject rule to - * combine them into a single result that can be used to determine if the - * connection should be allowed to proceed. - * Heres the test matrix we need to follow in this function. - * - * A - Allow, the result of the allow test. Never returns R. - * R - Reject, result of the reject test. Never returns A. - * Both can return D or dont care if no rule was given. - * - * | @allow | @reject | Result | - * | A | R | R | - * | D | D | D | - * | A | D | A | - * | D | R | R | - */ -int -rpcsvc_combine_allow_reject_volume_check (int allow, int reject) +rpcsvc_notify_wrapper_t * +rpcsvc_notify_wrapper_alloc(void) { - int final = RPCSVC_AUTH_REJECT; + rpcsvc_notify_wrapper_t *wrapper = NULL; - /* If allowed rule allows but reject rule rejects, we stay cautious - * and reject. */ - if ((allow == RPCSVC_AUTH_ACCEPT) && (reject == RPCSVC_AUTH_REJECT)) - final = RPCSVC_AUTH_REJECT; - /* if both are dont care, that is user did not specify for either allow - * or reject, we leave it up to the general rule to apply, in the hope - * that there is one. - */ - else if ((allow == RPCSVC_AUTH_DONTCARE) && - (reject == RPCSVC_AUTH_DONTCARE)) - final = RPCSVC_AUTH_DONTCARE; - /* If one is dont care, the other one applies. */ - else if ((allow == RPCSVC_AUTH_ACCEPT) && - (reject == RPCSVC_AUTH_DONTCARE)) - final = RPCSVC_AUTH_ACCEPT; - else if ((allow == RPCSVC_AUTH_DONTCARE) && - (reject == RPCSVC_AUTH_REJECT)) - final = RPCSVC_AUTH_REJECT; + wrapper = GF_CALLOC(1, sizeof(*wrapper), gf_common_mt_rpcsvc_wrapper_t); + if (!wrapper) { + goto out; + } - return final; + INIT_LIST_HEAD(&wrapper->list); +out: + return wrapper; } - -/* Combines the result of the general rule test against, the specific rule - * to determine final permission for the client's address. - * - * | @gen | @spec | Result | - * | A | A | A | - * | A | R | R | - * | A | D | A | - * | D | A | A | - * | D | R | R | - * | D | D | D | - * | R | A | A | - * | R | D | R | - * | R | R | R | - */ -int -rpcsvc_combine_gen_spec_addr_checks (int gen, int spec) +void +rpcsvc_listener_destroy(rpcsvc_listener_t *listener) { - int final = RPCSVC_AUTH_REJECT; + rpcsvc_t *svc = NULL; - if ((gen == RPCSVC_AUTH_ACCEPT) && (spec == RPCSVC_AUTH_ACCEPT)) - final = RPCSVC_AUTH_ACCEPT; - else if ((gen == RPCSVC_AUTH_ACCEPT) && (spec == RPCSVC_AUTH_REJECT)) - final = RPCSVC_AUTH_REJECT; - else if ((gen == RPCSVC_AUTH_ACCEPT) && (spec == RPCSVC_AUTH_DONTCARE)) - final = RPCSVC_AUTH_ACCEPT; - else if ((gen == RPCSVC_AUTH_DONTCARE) && (spec == RPCSVC_AUTH_ACCEPT)) - final = RPCSVC_AUTH_ACCEPT; - else if ((gen == RPCSVC_AUTH_DONTCARE) && (spec == RPCSVC_AUTH_REJECT)) - final = RPCSVC_AUTH_REJECT; - else if ((gen == RPCSVC_AUTH_DONTCARE) && (spec== RPCSVC_AUTH_DONTCARE)) - final = RPCSVC_AUTH_DONTCARE; - else if ((gen == RPCSVC_AUTH_REJECT) && (spec == RPCSVC_AUTH_ACCEPT)) - final = RPCSVC_AUTH_ACCEPT; - else if ((gen == RPCSVC_AUTH_REJECT) && (spec == RPCSVC_AUTH_DONTCARE)) - final = RPCSVC_AUTH_REJECT; - else if ((gen == RPCSVC_AUTH_REJECT) && (spec == RPCSVC_AUTH_REJECT)) - final = RPCSVC_AUTH_REJECT; - - return final; -} + if (!listener) { + goto out; + } + svc = listener->svc; + if (!svc) { + goto listener_free; + } + pthread_rwlock_wrlock(&svc->rpclock); + { + list_del_init(&listener->list); + } + pthread_rwlock_unlock(&svc->rpclock); -/* Combines the result of the general rule test against, the specific rule - * to determine final test for the connection coming in for a given volume. - * - * | @gen | @spec | Result | - * | A | A | A | - * | A | R | R | - * | A | D | A | - * | D | A | A | - * | D | R | R | - * | D | D | R |, special case, we intentionally disallow this. - * | R | A | A | - * | R | D | R | - * | R | R | R | - */ -int -rpcsvc_combine_gen_spec_volume_checks (int gen, int spec) -{ - int final = RPCSVC_AUTH_REJECT; - - if ((gen == RPCSVC_AUTH_ACCEPT) && (spec == RPCSVC_AUTH_ACCEPT)) - final = RPCSVC_AUTH_ACCEPT; - else if ((gen == RPCSVC_AUTH_ACCEPT) && (spec == RPCSVC_AUTH_REJECT)) - final = RPCSVC_AUTH_REJECT; - else if ((gen == RPCSVC_AUTH_ACCEPT) && (spec == RPCSVC_AUTH_DONTCARE)) - final = RPCSVC_AUTH_ACCEPT; - else if ((gen == RPCSVC_AUTH_DONTCARE) && (spec == RPCSVC_AUTH_ACCEPT)) - final = RPCSVC_AUTH_ACCEPT; - else if ((gen == RPCSVC_AUTH_DONTCARE) && (spec == RPCSVC_AUTH_REJECT)) - final = RPCSVC_AUTH_REJECT; - /* On no rule, we reject. */ - else if ((gen == RPCSVC_AUTH_DONTCARE) && (spec== RPCSVC_AUTH_DONTCARE)) - final = RPCSVC_AUTH_REJECT; - else if ((gen == RPCSVC_AUTH_REJECT) && (spec == RPCSVC_AUTH_ACCEPT)) - final = RPCSVC_AUTH_ACCEPT; - else if ((gen == RPCSVC_AUTH_REJECT) && (spec == RPCSVC_AUTH_DONTCARE)) - final = RPCSVC_AUTH_REJECT; - else if ((gen == RPCSVC_AUTH_REJECT) && (spec == RPCSVC_AUTH_REJECT)) - final = RPCSVC_AUTH_REJECT; - - return final; +listener_free: + GF_FREE(listener); +out: + return; } - -int -rpcsvc_transport_peer_check_name (dict_t *options, char *volname, - rpc_transport_t *trans) +rpcsvc_vector_sizer +rpcsvc_get_program_vector_sizer(rpcsvc_t *svc, uint32_t prognum, + uint32_t progver, int procnum) { - int ret = RPCSVC_AUTH_REJECT; - int aret = RPCSVC_AUTH_REJECT; - int rjret = RPCSVC_AUTH_REJECT; - char clstr[RPCSVC_PEER_STRLEN]; + rpcsvc_program_t *program = NULL; + char found = 0; - if (!trans) - return ret; + if (!svc) + return NULL; - ret = rpc_transport_get_peername (trans, clstr, RPCSVC_PEER_STRLEN); - if (ret != 0) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to get remote addr: " - "%s", gai_strerror (ret)); - ret = RPCSVC_AUTH_REJECT; - goto err; + pthread_rwlock_rdlock(&svc->rpclock); + { + /* Find the matching RPC program from registered list */ + list_for_each_entry(program, &svc->programs, program) + { + if ((program->prognum == prognum) && + (program->progver == progver)) { + found = 1; + break; + } } + } + pthread_rwlock_unlock(&svc->rpclock); - aret = rpcsvc_transport_peer_check_allow (options, volname, clstr); - rjret = rpcsvc_transport_peer_check_reject (options, volname, clstr); + if (found) { + /* Make sure the requested procnum is supported by RPC prog */ + if ((procnum < 0) || (procnum >= program->numactors)) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "RPC procedure %d not available for Program %s", procnum, + program->progname); + return NULL; + } - ret = rpcsvc_combine_allow_reject_volume_check (aret, rjret); + /* SUCCESS: Supported procedure */ + return program->actors[procnum].vector_sizer; + } -err: - return ret; + return NULL; /* FAIL */ } - -int -rpcsvc_transport_peer_check_addr (dict_t *options, char *volname, - rpc_transport_t *trans) +gf_boolean_t +rpcsvc_can_outstanding_req_be_ignored(rpcsvc_request_t *req) { - int ret = RPCSVC_AUTH_REJECT; - int aret = RPCSVC_AUTH_DONTCARE; - int rjret = RPCSVC_AUTH_REJECT; - char clstr[RPCSVC_PEER_STRLEN]; - - if (!trans) - return ret; - - ret = rpcsvc_transport_peeraddr (trans, clstr, RPCSVC_PEER_STRLEN, NULL, - 0); - if (ret != 0) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to get remote addr: " - "%s", gai_strerror (ret)); - ret = RPCSVC_AUTH_REJECT; - goto err; - } - - aret = rpcsvc_transport_peer_check_allow (options, volname, clstr); - rjret = rpcsvc_transport_peer_check_reject (options, volname, clstr); - - ret = rpcsvc_combine_allow_reject_volume_check (aret, rjret); -err: - return ret; + /* + * If outstanding_rpc_limit is reached because of blocked locks and + * throttling is attempted then no unlock requests will be received. So + * the outstanding request count will never change i.e. it will always + * be equal to the limit. This also leads to ping timer expiry on + * client. + */ + + /* + * This is a hack and a necessity until grantedlock == fop completion. + * Ideally if we get a blocking lock request which cannot be granted + * right now, we should unwind the fop saying “request registered, will + * notify you when granted”, which is very hard to implement at the + * moment. Until we bring in such mechanism, we will need to live with + * not rate-limiting INODELK/ENTRYLK/LK fops + */ + + if ((req->prognum == GLUSTER_FOP_PROGRAM) && + (req->progver == GLUSTER_FOP_VERSION)) { + if ((req->procnum == GFS3_OP_INODELK) || + (req->procnum == GFS3_OP_FINODELK) || + (req->procnum == GFS3_OP_ENTRYLK) || + (req->procnum == GFS3_OP_FENTRYLK) || (req->procnum == GFS3_OP_LK)) + return _gf_true; + } + return _gf_false; } - int -rpcsvc_transport_check_volume_specific (dict_t *options, char *volname, - rpc_transport_t *trans) -{ - int namechk = RPCSVC_AUTH_REJECT; - int addrchk = RPCSVC_AUTH_REJECT; - gf_boolean_t namelookup = _gf_true; - char *namestr = NULL; - int ret = 0; - - if ((!options) || (!volname) || (!trans)) - return RPCSVC_AUTH_REJECT; - - /* Enabled by default */ - if ((dict_get (options, "rpc-auth.addr.namelookup"))) { - ret = dict_get_str (options, "rpc-auth.addr.namelookup" - , &namestr); - if (ret == 0) { - ret = gf_string2boolean (namestr, &namelookup); - if (ret) - gf_log ("rpcsvc", GF_LOG_DEBUG, - "wrong option %s given for " - "'namelookup'", namestr); - } - } - - /* We need two separate checks because the rules with addresses in them - * can be network addresses which can be general and names can be - * specific which will over-ride the network address rules. - */ - if (namelookup) - namechk = rpcsvc_transport_peer_check_name (options, volname, - trans); - addrchk = rpcsvc_transport_peer_check_addr (options, volname, trans); - - if (namelookup) - ret = rpcsvc_combine_gen_spec_addr_checks (addrchk, namechk); - else - ret = addrchk; - - return ret; -} +rpcsvc_request_outstanding(rpcsvc_request_t *req, int delta) +{ + int ret = -1; + int old_count = 0; + int new_count = 0; + int limit = 0; + gf_boolean_t throttle = _gf_false; + if (!req) + goto out; -int -rpcsvc_transport_check_volume_general (dict_t *options, rpc_transport_t *trans) -{ - int addrchk = RPCSVC_AUTH_REJECT; - int namechk = RPCSVC_AUTH_REJECT; - gf_boolean_t namelookup = _gf_true; - char *namestr = NULL; - int ret = 0; + throttle = rpcsvc_get_throttle(req->svc); + if (!throttle) { + ret = 0; + goto out; + } - if ((!options) || (!trans)) - return RPCSVC_AUTH_REJECT; + if (rpcsvc_can_outstanding_req_be_ignored(req)) { + ret = 0; + goto out; + } - /* Enabled by default */ - if ((dict_get (options, "rpc-auth.addr.namelookup"))) { - ret = dict_get_str (options, "rpc-auth.addr.namelookup" - , &namestr); - if (!ret) { - ret = gf_string2boolean (namestr, &namelookup); - if (ret) - gf_log ("rpcsvc", GF_LOG_DEBUG, - "wrong option %s given for " - "'namelookup'", namestr); - } - } + pthread_mutex_lock(&req->trans->lock); + { + limit = req->svc->outstanding_rpc_limit; + if (!limit) + goto unlock; - /* We need two separate checks because the rules with addresses in them - * can be network addresses which can be general and names can be - * specific which will over-ride the network address rules. - */ - if (namelookup) - namechk = rpcsvc_transport_peer_check_name (options, NULL, - trans); + old_count = req->trans->outstanding_rpc_count; + req->trans->outstanding_rpc_count += delta; + new_count = req->trans->outstanding_rpc_count; - addrchk = rpcsvc_transport_peer_check_addr (options, NULL, trans); + if (old_count <= limit && new_count > limit) + ret = rpc_transport_throttle(req->trans, _gf_true); - if (namelookup) - ret = rpcsvc_combine_gen_spec_addr_checks (addrchk, namechk); - else - ret = addrchk; + if (old_count > limit && new_count <= limit) + ret = rpc_transport_throttle(req->trans, _gf_false); + } +unlock: + pthread_mutex_unlock(&req->trans->lock); - return ret; +out: + return ret; } -int -rpcsvc_transport_peer_check (dict_t *options, char *volname, - rpc_transport_t *trans) +/* This needs to change to returning errors, since + * we need to return RPC specific error messages when some + * of the pointers below are NULL. + */ +rpcsvc_actor_t * +rpcsvc_program_actor(rpcsvc_request_t *req) { - int general_chk = RPCSVC_AUTH_REJECT; - int specific_chk = RPCSVC_AUTH_REJECT; - - if ((!options) || (!volname) || (!trans)) - return RPCSVC_AUTH_REJECT; + rpcsvc_program_t *program = NULL; + int err = SYSTEM_ERR; + rpcsvc_actor_t *actor = NULL; + rpcsvc_t *svc = NULL; + char found = 0; + char *peername = NULL; + + if (!req) + goto err; + + svc = req->svc; + peername = req->trans->peerinfo.identifier; + pthread_rwlock_rdlock(&svc->rpclock); + { + list_for_each_entry(program, &svc->programs, program) + { + if (program->prognum == req->prognum) { + err = PROG_MISMATCH; + } - general_chk = rpcsvc_transport_check_volume_general (options, trans); - specific_chk = rpcsvc_transport_check_volume_specific (options, volname, - trans); + if ((program->prognum == req->prognum) && + (program->progver == req->progver)) { + found = 1; + break; + } + } + } + pthread_rwlock_unlock(&svc->rpclock); + + if (!found) { + if (err != PROG_MISMATCH) { + /* log in DEBUG when nfs clients try to see if + * ACL requests are accepted by nfs server + */ + gf_log( + GF_RPCSVC, + (req->prognum == ACL_PROGRAM) ? GF_LOG_DEBUG : GF_LOG_WARNING, + "RPC program not available (req %u %u) for %s", req->prognum, + req->progver, peername); + err = PROG_UNAVAIL; + goto err; + } + + gf_log(GF_RPCSVC, GF_LOG_WARNING, + "RPC program version not available (req %u %u) for %s", + req->prognum, req->progver, peername); + goto err; + } + req->prog = program; + if (!program->actors) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, + "RPC Actor not found for program %s %d for %s", + program->progname, program->prognum, peername); + err = SYSTEM_ERR; + goto err; + } + + if ((req->procnum < 0) || (req->procnum >= program->numactors)) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "RPC Program procedure not" + " available for procedure %d in %s for %s", + req->procnum, program->progname, peername); + err = PROC_UNAVAIL; + goto err; + } + + actor = &program->actors[req->procnum]; + if (!actor->actor) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "RPC Program procedure not" + " available for procedure %d in %s for %s", + req->procnum, program->progname, peername); + err = PROC_UNAVAIL; + actor = NULL; + goto err; + } + + if (svc->xl->ctx->measure_latency) { + timespec_now(&req->begin); + } + + req->ownthread = program->ownthread; + req->synctask = program->synctask; + + err = SUCCESS; + gf_log(GF_RPCSVC, GF_LOG_TRACE, "Actor found: %s - %s for %s", + program->progname, actor->procname, peername); +err: + if (req) + req->rpc_err = err; - return rpcsvc_combine_gen_spec_volume_checks (general_chk,specific_chk); + return actor; } - -char * -rpcsvc_volume_allowed (dict_t *options, char *volname) +/* this procedure can only pass 4 arguments to registered notifyfn. To send more + * arguments call wrapper->notify directly. + */ +static void +rpcsvc_program_notify(rpcsvc_listener_t *listener, rpcsvc_event_t event, + void *data) { - char globalrule[] = "rpc-auth.addr.allow"; - char *srchstr = NULL; - char *addrstr = NULL; - int ret = -1; + rpcsvc_notify_wrapper_t *wrapper = NULL; - if ((!options) || (!volname)) - return NULL; + if (!listener) { + goto out; + } - ret = gf_asprintf (&srchstr, "rpc-auth.addr.%s.allow", volname); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); - goto out; + list_for_each_entry(wrapper, &listener->svc->notify, list) + { + if (wrapper->notify) { + wrapper->notify(listener->svc, wrapper->data, event, data); } + } - if (!dict_get (options, srchstr)) { - GF_FREE (srchstr); - srchstr = globalrule; - ret = dict_get_str (options, srchstr, &addrstr); - if (ret) - gf_log ("rpcsvc", GF_LOG_DEBUG, - "failed to get the string %s", srchstr); - } else { - ret = dict_get_str (options, srchstr, &addrstr); - if (ret) - gf_log ("rpcsvc", GF_LOG_DEBUG, - "failed to get the string %s", srchstr); - GF_FREE (srchstr); - } out: - return addrstr; + return; } - -int -rpcsvc_notify (rpc_transport_t *trans, void *mydata, - rpc_transport_event_t event, void *data, ...); - -rpcsvc_notify_wrapper_t * -rpcsvc_notify_wrapper_alloc (void) +static int +rpcsvc_accept(rpcsvc_t *svc, rpc_transport_t *listen_trans, + rpc_transport_t *new_trans) { - rpcsvc_notify_wrapper_t *wrapper = NULL; + rpcsvc_listener_t *listener = NULL; + int32_t ret = -1; - wrapper = GF_CALLOC (1, sizeof (*wrapper), gf_common_mt_rpcsvc_wrapper_t); - if (!wrapper) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "memory allocation failed"); - goto out; - } + listener = rpcsvc_get_listener(svc, -1, listen_trans); + if (listener == NULL) { + goto out; + } - INIT_LIST_HEAD (&wrapper->list); + rpcsvc_program_notify(listener, RPCSVC_EVENT_ACCEPT, new_trans); + ret = 0; out: - return wrapper; + return ret; } - void -rpcsvc_listener_destroy (rpcsvc_listener_t *listener) +rpcsvc_request_destroy(rpcsvc_request_t *req) { - rpcsvc_t *svc = NULL; + if (!req) { + goto out; + } - if (!listener) { - goto out; - } + if (req->iobref) { + iobref_unref(req->iobref); + } - svc = listener->svc; - if (!svc) { - goto listener_free; - } + /* This marks the "end" of an RPC request. Reply is + completely written to the socket and is on the way + to the client. It is time to decrement the + outstanding request counter by 1. + */ + if (req->prognum) // Only for initialized requests + rpcsvc_request_outstanding(req, -1); - pthread_mutex_lock (&svc->rpclock); - { - list_del_init (&listener->list); - } - pthread_mutex_unlock (&svc->rpclock); + rpc_transport_unref(req->trans); -listener_free: - GF_FREE (listener); -out: - return; -} + GF_FREE(req->auxgidlarge); + mem_put(req); -int -rpcsvc_conn_privport_check (rpcsvc_t *svc, char *volname, - rpc_transport_t *trans) -{ - struct sockaddr_storage sa = {0, }; - int ret = RPCSVC_AUTH_REJECT; - socklen_t sasize = sizeof (sa); - char *srchstr = NULL; - char *valstr = NULL; - int globalinsecure = RPCSVC_AUTH_REJECT; - int exportinsecure = RPCSVC_AUTH_DONTCARE; - uint16_t port = 0; - gf_boolean_t insecure = _gf_false; - - if ((!svc) || (!volname) || (!trans)) - return ret; - - ret = rpcsvc_transport_peeraddr (trans, NULL, 0, &sa, - sasize); - if (ret != 0) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to get peer addr: %s", - gai_strerror (ret)); - ret = RPCSVC_AUTH_REJECT; - goto err; - } +out: + return; +} - if (sa.ss_family == AF_INET) { - port = ((struct sockaddr_in *)&sa)->sin_port; - } else { - port = ((struct sockaddr_in6 *)&sa)->sin6_port; - } +rpcsvc_request_t * +rpcsvc_request_init(rpcsvc_t *svc, rpc_transport_t *trans, + struct rpc_msg *callmsg, struct iovec progmsg, + rpc_transport_pollin_t *msg, rpcsvc_request_t *req) +{ + int i = 0; + + if ((!trans) || (!callmsg) || (!req) || (!msg)) + return NULL; + + /* We start a RPC request as always denied. */ + req->rpc_status = MSG_DENIED; + req->xid = rpc_call_xid(callmsg); + req->prognum = rpc_call_program(callmsg); + req->progver = rpc_call_progver(callmsg); + req->procnum = rpc_call_progproc(callmsg); + req->trans = rpc_transport_ref(trans); + req->count = msg->count; + req->msg[0] = progmsg; + req->iobref = iobref_ref(msg->iobref); + if (msg->vectored) { + /* msg->vector[MAX_IOVEC] is defined in structure. prevent a + out of bound access */ + for (i = 1; i < min(msg->count, MAX_IOVEC); i++) { + req->msg[i] = msg->vector[i]; + } + } + + req->svc = svc; + req->trans_private = msg->private; + + INIT_LIST_HEAD(&req->txlist); + INIT_LIST_HEAD(&req->request_list); + req->payloadsize = 0; + + /* By this time, the data bytes for the auth scheme would have already + * been copied into the required sections of the req structure, + * we just need to fill in the meta-data about it now. + */ + rpcsvc_auth_request_init(req, callmsg); + return req; +} - gf_log (GF_RPCSVC, GF_LOG_TRACE, "Client port: %d", (int)port); - /* If the port is already a privileged one, dont bother with checking - * options. +rpcsvc_request_t * +rpcsvc_request_create(rpcsvc_t *svc, rpc_transport_t *trans, + rpc_transport_pollin_t *msg) +{ + char *msgbuf = NULL; + struct rpc_msg rpcmsg; + struct iovec progmsg; /* RPC Program payload */ + rpcsvc_request_t *req = NULL; + size_t msglen = 0; + int ret = -1; + + if (!svc || !trans || !svc->rxpool) + return NULL; + + /* We need to allocate the request before actually calling + * rpcsvc_request_init on the request so that we, can fill the auth + * data directly into the request structure from the message iobuf. + * This avoids a need to keep a temp buffer into which the auth data + * would've been copied otherwise. + */ + rpcsvc_alloc_request(svc, req); + if (!req) { + goto err; + } + + msgbuf = msg->vector[0].iov_base; + msglen = msg->vector[0].iov_len; + + ret = xdr_to_rpc_call(msgbuf, msglen, &rpcmsg, &progmsg, req->cred.authdata, + req->verf.authdata); + + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, "RPC call decoding failed"); + rpcsvc_request_seterr(req, GARBAGE_ARGS); + req->trans = rpc_transport_ref(trans); + req->svc = svc; + goto err; + } + + ret = -1; + rpcsvc_request_init(svc, trans, &rpcmsg, progmsg, msg, req); + + gf_log(GF_RPCSVC, GF_LOG_TRACE, + "received rpc-message " + "(XID: 0x%" GF_PRI_RPC_XID ", Ver: %" GF_PRI_RPC_VERSION + ", Program: %" GF_PRI_RPC_PROG_ID + ", " + "ProgVers: %" GF_PRI_RPC_PROG_VERS ", Proc: %" GF_PRI_RPC_PROC + ") " + "from rpc-transport (%s)", + rpc_call_xid(&rpcmsg), rpc_call_rpcvers(&rpcmsg), + rpc_call_program(&rpcmsg), rpc_call_progver(&rpcmsg), + rpc_call_progproc(&rpcmsg), trans->name); + + /* We just received a new request from the wire. Account for + it in the outsanding request counter to make sure we don't + ingest too many concurrent requests from the same client. + */ + if (req->prognum) // Only for initialized requests + ret = rpcsvc_request_outstanding(req, +1); + + if (rpc_call_rpcvers(&rpcmsg) != 2) { + /* LOG- TODO: print rpc version, also print the peerinfo + from transport */ + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "RPC version not supported " + "(XID: 0x%" GF_PRI_RPC_XID ", Ver: %" GF_PRI_RPC_VERSION + ", Program: %" GF_PRI_RPC_PROG_ID + ", " + "ProgVers: %" GF_PRI_RPC_PROG_VERS ", Proc: %" GF_PRI_RPC_PROC + ") " + "from trans (%s)", + rpc_call_xid(&rpcmsg), rpc_call_rpcvers(&rpcmsg), + rpc_call_program(&rpcmsg), rpc_call_progver(&rpcmsg), + rpc_call_progproc(&rpcmsg), trans->name); + rpcsvc_request_seterr(req, RPC_MISMATCH); + goto err; + } + + ret = rpcsvc_authenticate(req); + if (ret == RPCSVC_AUTH_REJECT) { + /* No need to set auth_err, that is the responsibility of + * the authentication handler since only that know what exact + * error happened. */ - if (port <= 1024) { - ret = RPCSVC_AUTH_ACCEPT; - goto err; - } - - /* Disabled by default */ - if ((dict_get (svc->options, "rpc-auth.ports.insecure"))) { - ret = dict_get_str (svc->options, "rpc-auth.ports.insecure" - , &srchstr); - if (ret == 0) { - ret = gf_string2boolean (srchstr, &insecure); - if (ret == 0) { - if (insecure == _gf_true) - globalinsecure = RPCSVC_AUTH_ACCEPT; - } else - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to" - " read rpc-auth.ports.insecure value"); - } else - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to" - " read rpc-auth.ports.insecure value"); - } - - /* Disabled by default */ - ret = gf_asprintf (&srchstr, "rpc-auth.ports.%s.insecure", volname); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); - ret = RPCSVC_AUTH_REJECT; - goto err; - } - - if (dict_get (svc->options, srchstr)) { - ret = dict_get_str (svc->options, srchstr, &valstr); - if (ret == 0) { - ret = gf_string2boolean (srchstr, &insecure); - if (ret == 0) { - if (insecure == _gf_true) - exportinsecure = RPCSVC_AUTH_ACCEPT; - else - exportinsecure = RPCSVC_AUTH_REJECT; - } else - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to" - " read rpc-auth.ports.insecure value"); - } else - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to" - " read rpc-auth.ports.insecure value"); - } - - ret = rpcsvc_combine_gen_spec_volume_checks (globalinsecure, - exportinsecure); - if (ret == RPCSVC_AUTH_ACCEPT) - gf_log (GF_RPCSVC, GF_LOG_DEBUG, "Unprivileged port allowed"); - else - gf_log (GF_RPCSVC, GF_LOG_DEBUG, "Unprivileged port not" - " allowed"); - + rpcsvc_request_seterr(req, AUTH_ERROR); + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "auth failed on request. " + "(XID: 0x%" GF_PRI_RPC_XID ", Ver: %" GF_PRI_RPC_VERSION + ", Program: %" GF_PRI_RPC_PROG_ID + ", " + "ProgVers: %" GF_PRI_RPC_PROG_VERS ", Proc: %" GF_PRI_RPC_PROC + ") " + "from trans (%s)", + rpc_call_xid(&rpcmsg), rpc_call_rpcvers(&rpcmsg), + rpc_call_program(&rpcmsg), rpc_call_progver(&rpcmsg), + rpc_call_progproc(&rpcmsg), trans->name); + ret = -1; + goto err; + } + + /* If the error is not RPC_MISMATCH, we consider the call as accepted + * since we are not handling authentication failures for now. + */ + req->rpc_status = MSG_ACCEPTED; + req->reply = NULL; + ret = 0; err: - if (srchstr) - GF_FREE (srchstr); - return ret; -} + if (ret == -1) { + ret = rpcsvc_error_reply(req); + if (ret) + gf_log("rpcsvc", GF_LOG_WARNING, "failed to queue error reply"); + req = NULL; + } + return req; +} -/* This needs to change to returning errors, since - * we need to return RPC specific error messages when some - * of the pointers below are NULL. - */ -rpcsvc_actor_t * -rpcsvc_program_actor (rpcsvc_request_t *req) +int +rpcsvc_check_and_reply_error(int ret, call_frame_t *frame, void *opaque) { - rpcsvc_program_t *program = NULL; - int err = SYSTEM_ERR; - rpcsvc_actor_t *actor = NULL; - rpcsvc_t *svc = NULL; - char found = 0; + rpcsvc_request_t *req = NULL; - if (!req) - goto err; + req = opaque; - svc = req->svc; - pthread_mutex_lock (&svc->rpclock); - { - list_for_each_entry (program, &svc->programs, program) { - if (program->prognum == req->prognum) { - err = PROG_MISMATCH; - } + if (ret) + gf_log("rpcsvc", GF_LOG_ERROR, + "rpc actor (%d:%d:%d) failed to complete successfully", + req->prognum, req->progver, req->procnum); - if ((program->prognum == req->prognum) - && (program->progver == req->progver)) { - found = 1; - break; - } - } - } - pthread_mutex_unlock (&svc->rpclock); - - if (!found) { - if (err != PROG_MISMATCH) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, - "RPC program not available"); - err = PROG_UNAVAIL; - goto err; - } + if (ret == RPCSVC_ACTOR_ERROR) { + ret = rpcsvc_error_reply(req); + if (ret) + gf_log("rpcsvc", GF_LOG_WARNING, "failed to queue error reply"); + } - gf_log (GF_RPCSVC, GF_LOG_ERROR, "RPC program version not" - " available"); - goto err; - } - req->prog = program; - if (!program->actors) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "RPC System error"); - err = SYSTEM_ERR; - goto err; - } + return 0; +} - if ((req->procnum < 0) || (req->procnum >= program->numactors)) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "RPC Program procedure not" - " available"); - err = PROC_UNAVAIL; - goto err; - } +void +rpcsvc_queue_event_thread_death(rpcsvc_t *svc, rpcsvc_program_t *prog, int gen) +{ + rpcsvc_request_queue_t *queue = NULL; + int num = 0; + void *value = NULL; + rpcsvc_request_t *req = NULL; + char empty = 0; + + value = pthread_getspecific(prog->req_queue_key); + if (value == NULL) { + return; + } - actor = &program->actors[req->procnum]; - if (!actor->actor) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "RPC Program procedure not" - " available"); - err = PROC_UNAVAIL; - actor = NULL; - goto err; - } + num = ((unsigned long)value) - 1; - err = SUCCESS; - gf_log (GF_RPCSVC, GF_LOG_TRACE, "Actor found: %s - %s", - program->progname, actor->procname); -err: - if (req) - req->rpc_err = err; + queue = &prog->request_queue[num]; - return actor; -} + if (queue->gen == gen) { + /* duplicate event */ + gf_log(GF_RPCSVC, GF_LOG_INFO, + "not queuing duplicate event thread death. " + "queue %d program %s", + num, prog->progname); + return; + } + rpcsvc_alloc_request(svc, req); + req->prognum = RPCSVC_INFRA_PROGRAM; + req->procnum = RPCSVC_PROC_EVENT_THREAD_DEATH; + gf_log(GF_RPCSVC, GF_LOG_INFO, + "queuing event thread death request to queue %d of program %s", num, + prog->progname); -/* this procedure can only pass 4 arguments to registered notifyfn. To send more - * arguements call wrapper->notify directly. - */ -inline void -rpcsvc_program_notify (rpcsvc_listener_t *listener, rpcsvc_event_t event, - void *data) -{ - rpcsvc_notify_wrapper_t *wrapper = NULL; + pthread_mutex_lock(&queue->queue_lock); + { + empty = list_empty(&queue->request_queue); - if (!listener) { - goto out; - } + list_add_tail(&req->request_list, &queue->request_queue); + queue->gen = gen; - list_for_each_entry (wrapper, &listener->svc->notify, list) { - if (wrapper->notify) { - wrapper->notify (listener->svc, - wrapper->data, - event, data); - } - } + if (empty && queue->waiting) + pthread_cond_signal(&queue->queue_cond); + } + pthread_mutex_unlock(&queue->queue_lock); -out: - return; + return; } - -inline int -rpcsvc_accept (rpcsvc_t *svc, rpc_transport_t *listen_trans, - rpc_transport_t *new_trans) +int +rpcsvc_handle_event_thread_death(rpcsvc_t *svc, rpc_transport_t *trans, int gen) { - rpcsvc_listener_t *listener = NULL; - int32_t ret = -1; + rpcsvc_program_t *prog = NULL; - listener = rpcsvc_get_listener (svc, -1, listen_trans); - if (listener == NULL) { - goto out; + pthread_rwlock_rdlock(&svc->rpclock); + { + list_for_each_entry(prog, &svc->programs, program) + { + if (prog->ownthread) + rpcsvc_queue_event_thread_death(svc, prog, gen); } + } + pthread_rwlock_unlock(&svc->rpclock); - rpcsvc_program_notify (listener, RPCSVC_EVENT_ACCEPT, new_trans); - ret = 0; -out: - return ret; + return 0; } - -void -rpcsvc_request_destroy (rpcsvc_request_t *req) +int +rpcsvc_handle_rpc_call(rpcsvc_t *svc, rpc_transport_t *trans, + rpc_transport_pollin_t *msg) { - if (!req) { - goto out; - } + rpcsvc_actor_t *actor = NULL; + rpcsvc_actor actor_fn = NULL; + rpcsvc_request_t *req = NULL; + int ret = -1; + uint16_t port = 0; + gf_boolean_t is_unix = _gf_false, empty = _gf_false; + gf_boolean_t unprivileged = _gf_false, spawn_request_handler = 0; + drc_cached_op_t *reply = NULL; + rpcsvc_drc_globals_t *drc = NULL; + rpcsvc_request_queue_t *queue = NULL; + long num = 0; + void *value = NULL; + + if (!trans || !svc) + return -1; + + switch (trans->peerinfo.sockaddr.ss_family) { + case AF_INET: + port = ((struct sockaddr_in *)&trans->peerinfo.sockaddr)->sin_port; + break; - if (req->iobref) { - iobref_unref (req->iobref); - } + case AF_INET6: + port = ((struct sockaddr_in6 *)&trans->peerinfo.sockaddr) + ->sin6_port; + break; + case AF_UNIX: + is_unix = _gf_true; + break; + default: + gf_log(GF_RPCSVC, GF_LOG_ERROR, "invalid address family (%d)", + trans->peerinfo.sockaddr.ss_family); + return -1; + } - rpc_transport_unref (req->trans); + if (is_unix == _gf_false) { + port = ntohs(port); - mem_put (req->svc->rxpool, req); + gf_log("rpcsvc", GF_LOG_TRACE, "Client port: %d", (int)port); -out: - return; -} + if (port >= 1024) + unprivileged = _gf_true; + } + req = rpcsvc_request_create(svc, trans, msg); + if (!req) + goto out; -rpcsvc_request_t * -rpcsvc_request_init (rpcsvc_t *svc, rpc_transport_t *trans, - struct rpc_msg *callmsg, - struct iovec progmsg, rpc_transport_pollin_t *msg, - rpcsvc_request_t *req) -{ - if ((!trans) || (!callmsg)|| (!req) || (!msg)) - return NULL; + if (!rpcsvc_request_accepted(req)) + goto err_reply; - /* We start a RPC request as always denied. */ - req->rpc_status = MSG_DENIED; - req->xid = rpc_call_xid (callmsg); - req->prognum = rpc_call_program (callmsg); - req->progver = rpc_call_progver (callmsg); - req->procnum = rpc_call_progproc (callmsg); - req->trans = rpc_transport_ref (trans); - req->count = msg->count; - req->msg[0] = progmsg; - req->iobref = iobref_ref (msg->iobref); - if (msg->vectored) { - req->msg[1] = msg->vector[1]; - } + actor = rpcsvc_program_actor(req); + if (!actor) + goto err_reply; - req->svc = svc; - req->trans_private = msg->private; + if (0 == svc->allow_insecure && unprivileged && !actor->unprivileged) { + /* Non-privileged user, fail request */ + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Request received from non-" + "privileged port. Failing request for %s.", + req->trans->peerinfo.identifier); + req->rpc_status = MSG_DENIED; + req->rpc_err = AUTH_ERROR; + req->auth_err = RPCSVC_AUTH_REJECT; + goto err_reply; + } - INIT_LIST_HEAD (&req->txlist); - req->payloadsize = 0; + /* DRC */ + if (rpcsvc_need_drc(req)) { + drc = req->svc->drc; - /* By this time, the data bytes for the auth scheme would have already - * been copied into the required sections of the req structure, - * we just need to fill in the meta-data about it now. - */ - req->cred.flavour = rpc_call_cred_flavour (callmsg); - req->cred.datalen = rpc_call_cred_len (callmsg); - req->verf.flavour = rpc_call_verf_flavour (callmsg); - req->verf.datalen = rpc_call_verf_len (callmsg); + LOCK(&drc->lock); + { + reply = rpcsvc_drc_lookup(req); + + /* retransmission of completed request, send cached reply */ + if (reply && reply->state == DRC_OP_CACHED) { + gf_log(GF_RPCSVC, GF_LOG_INFO, + "duplicate request:" + " XID: 0x%x", + req->xid); + ret = rpcsvc_send_cached_reply(req, reply); + drc->cache_hits++; + UNLOCK(&drc->lock); + goto out; - /* AUTH */ - rpcsvc_auth_request_init (req); - return req; -} + } /* retransmitted request, original op in transit, drop it */ + else if (reply && reply->state == DRC_OP_IN_TRANSIT) { + gf_log(GF_RPCSVC, GF_LOG_INFO, + "op in transit," + " discarding. XID: 0x%x", + req->xid); + ret = 0; + drc->intransit_hits++; + rpcsvc_request_destroy(req); + UNLOCK(&drc->lock); + goto out; + } /* fresh request, cache it as in-transit and proceed */ + else { + ret = rpcsvc_cache_request(req); + } + } + UNLOCK(&drc->lock); + } + + if (req->rpc_err == SUCCESS) { + /* Before going to xlator code, set the THIS properly */ + THIS = svc->xl; + + actor_fn = actor->actor; + + if (!actor_fn) { + rpcsvc_request_seterr(req, PROC_UNAVAIL); + /* LOG TODO: print more info about procnum, + prognum etc, also print transport info */ + gf_log(GF_RPCSVC, GF_LOG_ERROR, "No vectored handler present"); + ret = RPCSVC_ACTOR_ERROR; + goto err_reply; + } + + if (req->synctask) { + ret = synctask_new(THIS->ctx->env, (synctask_fn_t)actor_fn, + rpcsvc_check_and_reply_error, NULL, req); + } else if (req->ownthread) { + value = pthread_getspecific(req->prog->req_queue_key); + if (value == NULL) { + pthread_mutex_lock(&req->prog->thr_lock); + { + num = rpcsvc_get_free_queue_index(req->prog); + if (num != -1) { + num++; + value = (void *)num; + ret = pthread_setspecific(req->prog->req_queue_key, + value); + if (ret < 0) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, + "setting request queue in TLS failed"); + rpcsvc_toggle_queue_status( + req->prog, &req->prog->request_queue[num - 1], + req->prog->request_queue_status); + num = -1; + } else { + spawn_request_handler = 1; + } + } + } + pthread_mutex_unlock(&req->prog->thr_lock); + } -rpcsvc_request_t * -rpcsvc_request_create (rpcsvc_t *svc, rpc_transport_t *trans, - rpc_transport_pollin_t *msg) -{ - char *msgbuf = NULL; - struct rpc_msg rpcmsg; - struct iovec progmsg; /* RPC Program payload */ - rpcsvc_request_t *req = NULL; - size_t msglen = 0; - int ret = -1; - - if (!svc || !trans) - return NULL; - - /* We need to allocate the request before actually calling - * rpcsvc_request_init on the request so that we, can fill the auth - * data directly into the request structure from the message iobuf. - * This avoids a need to keep a temp buffer into which the auth data - * would've been copied otherwise. - */ - rpcsvc_alloc_request (svc, req); - if (!req) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to alloc request"); - goto err; - } + if (num == -1) + goto noqueue; - msgbuf = msg->vector[0].iov_base; - msglen = msg->vector[0].iov_len; + num = ((unsigned long)value) - 1; - ret = xdr_to_rpc_call (msgbuf, msglen, &rpcmsg, &progmsg, - req->cred.authdata,req->verf.authdata); + queue = &req->prog->request_queue[num]; - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "RPC call decoding failed"); - rpcsvc_request_seterr (req, GARBAGE_ARGS); - goto err; - } + if (spawn_request_handler) { + ret = gf_thread_create(&queue->thread, NULL, + rpcsvc_request_handler, queue, + "rpcrqhnd"); + if (!ret) { + gf_log(GF_RPCSVC, GF_LOG_INFO, + "spawned a request handler thread for queue %d", + (int)num); + + req->prog->threadcount++; + } else { + gf_log( + GF_RPCSVC, GF_LOG_INFO, + "spawning a request handler thread for queue %d failed", + (int)num); + ret = pthread_setspecific(req->prog->req_queue_key, 0); + if (ret < 0) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, + "resetting request queue in TLS failed"); + } + + rpcsvc_toggle_queue_status( + req->prog, &req->prog->request_queue[num - 1], + req->prog->request_queue_status); + + goto noqueue; + } + } - ret = -1; - rpcsvc_request_init (svc, trans, &rpcmsg, progmsg, msg, req); + pthread_mutex_lock(&queue->queue_lock); + { + empty = list_empty(&queue->request_queue); - gf_log (GF_RPCSVC, GF_LOG_TRACE, "RPC XID: %lx, Ver: %ld, Program: %ld," - " ProgVers: %ld, Proc: %ld", rpc_call_xid (&rpcmsg), - rpc_call_rpcvers (&rpcmsg), rpc_call_program (&rpcmsg), - rpc_call_progver (&rpcmsg), rpc_call_progproc (&rpcmsg)); + list_add_tail(&req->request_list, &queue->request_queue); - if (rpc_call_rpcvers (&rpcmsg) != 2) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "RPC version not supported"); - rpcsvc_request_seterr (req, RPC_MISMATCH); - goto err; - } + if (empty && queue->waiting) + pthread_cond_signal(&queue->queue_cond); + } + pthread_mutex_unlock(&queue->queue_lock); - ret = rpcsvc_authenticate (req); - if (ret == RPCSVC_AUTH_REJECT) { - /* No need to set auth_err, that is the responsibility of - * the authentication handler since only that know what exact - * error happened. - */ - rpcsvc_request_seterr (req, AUTH_ERROR); - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed authentication"); - ret = -1; - goto err; + ret = 0; + } else { + noqueue: + ret = actor_fn(req); } + } +err_reply: - /* If the error is not RPC_MISMATCH, we consider the call as accepted - * since we are not handling authentication failures for now. - */ - req->rpc_status = MSG_ACCEPTED; - ret = 0; -err: - if (ret == -1) { - ret = rpcsvc_error_reply (req); - if (ret) - gf_log ("rpcsvc", GF_LOG_DEBUG, - "failed to queue error reply"); - req = NULL; - } + ret = rpcsvc_check_and_reply_error(ret, NULL, req); + /* No need to propagate error beyond this function since the reply + * has now been queued. */ + ret = 0; - return req; +out: + return ret; } - int -rpcsvc_handle_rpc_call (rpcsvc_t *svc, rpc_transport_t *trans, - rpc_transport_pollin_t *msg) +rpcsvc_handle_disconnect(rpcsvc_t *svc, rpc_transport_t *trans) { - rpcsvc_actor_t *actor = NULL; - rpcsvc_request_t *req = NULL; - int ret = -1; - uint16_t port = 0; - - if (!trans || !svc) - return -1; + rpcsvc_event_t event; + rpcsvc_notify_wrapper_t *wrappers = NULL, *wrapper; + int32_t ret = -1, i = 0, wrapper_count = 0; + rpcsvc_listener_t *listener = NULL; - switch (trans->peerinfo.sockaddr.ss_family) { - case AF_INET: - port = ((struct sockaddr_in *)&trans->peerinfo.sockaddr)->sin_port; - break; + event = (trans->listener == NULL) ? RPCSVC_EVENT_LISTENER_DEAD + : RPCSVC_EVENT_DISCONNECT; - case AF_INET6: - port = ((struct sockaddr_in6 *)&trans->peerinfo.sockaddr)->sin6_port; - break; + pthread_rwlock_rdlock(&svc->rpclock); + { + if (!svc->notify_count) + goto unlock; - default: - gf_log (GF_RPCSVC, GF_LOG_DEBUG, - "invalid address family (%d)", - trans->peerinfo.sockaddr.ss_family); - return -1; + wrappers = GF_CALLOC(svc->notify_count, sizeof(*wrapper), + gf_common_mt_rpcsvc_wrapper_t); + if (!wrappers) { + goto unlock; } - - - port = ntohs (port); - - gf_log ("rpcsvc", GF_LOG_TRACE, "Client port: %d", (int)port); - - if (port > 1024) { //Non-privilaged user, fail request - gf_log ("glusterd", GF_LOG_ERROR, "Request received from non-" - "privileged port. Failing request"); - return -1; + list_for_each_entry(wrapper, &svc->notify, list) + { + if (wrapper->notify) { + wrappers[i++] = *wrapper; + } } - req = rpcsvc_request_create (svc, trans, msg); - if (!req) - goto err; - - if (!rpcsvc_request_accepted (req)) - goto err_reply; - - actor = rpcsvc_program_actor (req); - if (!actor) - goto err_reply; - - if (actor && (req->rpc_err == SUCCESS)) { - /* Before going to xlator code, set the THIS properly */ - THIS = svc->mydata; - - if (req->count == 2) { - if (actor->vector_actor) { - ret = actor->vector_actor (req, &req->msg[1], 1, - req->iobref); - } else { - rpcsvc_request_seterr (req, PROC_UNAVAIL); - gf_log (GF_RPCSVC, GF_LOG_ERROR, - "No vectored handler present"); - ret = RPCSVC_ACTOR_ERROR; - } - } else if (actor->actor) { - ret = actor->actor (req); - } - } + wrapper_count = i; + } +unlock: + pthread_rwlock_unlock(&svc->rpclock); -err_reply: - if ((ret == RPCSVC_ACTOR_ERROR) || (req->rpc_err != SUCCESS)) { - ret = rpcsvc_error_reply (req); + if (wrappers) { + for (i = 0; i < wrapper_count; i++) { + wrappers[i].notify(svc, wrappers[i].data, event, trans); } - if (ret) - gf_log ("rpcsvc", GF_LOG_DEBUG, "failed to queue error reply"); + GF_FREE(wrappers); + } - /* No need to propagate error beyond this function since the reply - * has now been queued. */ - ret = 0; + if (event == RPCSVC_EVENT_LISTENER_DEAD) { + listener = rpcsvc_get_listener(svc, -1, trans->listener); + rpcsvc_listener_destroy(listener); + } -err: - return ret; + return ret; } - int -rpcsvc_handle_disconnect (rpcsvc_t *svc, rpc_transport_t *trans) -{ - rpcsvc_event_t event; - rpcsvc_notify_wrapper_t *wrappers = NULL, *wrapper; - int32_t ret = -1, i = 0, wrapper_count = 0; - rpcsvc_listener_t *listener = NULL; - - event = (trans->listener == NULL) ? RPCSVC_EVENT_LISTENER_DEAD - : RPCSVC_EVENT_DISCONNECT; - - pthread_mutex_lock (&svc->rpclock); - { - wrappers = GF_CALLOC (svc->notify_count, sizeof (*wrapper), - gf_common_mt_rpcsvc_wrapper_t); - if (!wrappers) { - goto unlock; - } - - list_for_each_entry (wrapper, &svc->notify, list) { - if (wrapper->notify) { - wrappers[i++] = *wrapper; - } - } - - wrapper_count = i; - } -unlock: - pthread_mutex_unlock (&svc->rpclock); - - if (wrappers) { - for (i = 0; i < wrapper_count; i++) { - wrappers[i].notify (svc, wrappers[i].data, - event, trans); - } - - GF_FREE (wrappers); - } - - if (event == RPCSVC_EVENT_LISTENER_DEAD) { - listener = rpcsvc_get_listener (svc, -1, trans->listener); - rpcsvc_listener_destroy (listener); - } - - return ret; -} - - -int -rpcsvc_notify (rpc_transport_t *trans, void *mydata, - rpc_transport_event_t event, void *data, ...) +rpcsvc_notify(rpc_transport_t *trans, void *mydata, rpc_transport_event_t event, + void *data, ...) { - int ret = -1; - rpc_transport_pollin_t *msg = NULL; - rpc_transport_t *new_trans = NULL; - rpcsvc_t *svc = NULL; - - svc = mydata; - if (svc == NULL) { - goto out; - } - - switch (event) { + int ret = -1; + rpc_transport_pollin_t *msg = NULL; + rpc_transport_t *new_trans = NULL; + rpcsvc_t *svc = NULL; + rpcsvc_listener_t *listener = NULL; + + svc = mydata; + if (svc == NULL) { + goto out; + } + + switch (event) { case RPC_TRANSPORT_ACCEPT: - new_trans = data; - ret = rpcsvc_accept (svc, trans, new_trans); - break; + new_trans = data; + ret = rpcsvc_accept(svc, trans, new_trans); + break; case RPC_TRANSPORT_DISCONNECT: - ret = rpcsvc_handle_disconnect (svc, trans); - break; + ret = rpcsvc_handle_disconnect(svc, trans); + break; case RPC_TRANSPORT_MSG_RECEIVED: - msg = data; - ret = rpcsvc_handle_rpc_call (svc, trans, msg); - break; + msg = data; + ret = rpcsvc_handle_rpc_call(svc, trans, msg); + break; case RPC_TRANSPORT_MSG_SENT: - ret = 0; - break; + ret = 0; + break; case RPC_TRANSPORT_CONNECT: - /* do nothing, no need for rpcsvc to handle this, client should - * handle this event - */ - gf_log ("rpcsvc", GF_LOG_CRITICAL, - "got CONNECT event, which should have not come"); - ret = 0; - break; + /* do nothing, no need for rpcsvc to handle this, client should + * handle this event + */ + /* print info about transport too : LOG TODO */ + gf_log("rpcsvc", GF_LOG_CRITICAL, + "got CONNECT event, which should have not come"); + ret = 0; + break; case RPC_TRANSPORT_CLEANUP: - /* FIXME: think about this later */ - ret = 0; - break; + listener = rpcsvc_get_listener(svc, -1, trans->listener); + if (listener == NULL) { + goto out; + } + + rpcsvc_program_notify(listener, RPCSVC_EVENT_TRANSPORT_DESTROY, + trans); + ret = 0; + break; case RPC_TRANSPORT_MAP_XID_REQUEST: - /* FIXME: think about this later */ - gf_log ("rpcsvc", GF_LOG_CRITICAL, - "got MAP_XID event, which should have not come"); - ret = 0; - break; - } + /* FIXME: think about this later */ + gf_log("rpcsvc", GF_LOG_CRITICAL, + "got MAP_XID event, which should have not come"); + ret = 0; + break; + + case RPC_TRANSPORT_EVENT_THREAD_DIED: + rpcsvc_handle_event_thread_death(svc, trans, + (int)(unsigned long)data); + ret = 0; + break; + } out: - return ret; + return ret; } - /* Given the RPC reply structure and the payload handed by the RPC program, * encode the RPC record header into the buffer pointed by recordstart. */ struct iovec -rpcsvc_record_build_header (char *recordstart, size_t rlen, - struct rpc_msg reply, size_t payload) +rpcsvc_record_build_header(char *recordstart, size_t rlen, struct rpc_msg reply, + size_t payload) { - struct iovec replyhdr; - struct iovec txrecord = {0, 0}; - size_t fraglen = 0; - int ret = -1; - - /* After leaving aside the 4 bytes for the fragment header, lets - * encode the RPC reply structure into the buffer given to us. - */ - ret = rpc_reply_to_xdr (&reply, recordstart, rlen, &replyhdr); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to create RPC reply"); - goto err; - } - - fraglen = payload + replyhdr.iov_len; - gf_log (GF_RPCSVC, GF_LOG_TRACE, "Reply fraglen %zu, payload: %zu, " - "rpc hdr: %zu", fraglen, payload, replyhdr.iov_len); - - txrecord.iov_base = recordstart; - - /* Remember, this is only the vec for the RPC header and does not - * include the payload above. We needed the payload only to calculate - * the size of the full fragment. This size is sent in the fragment - * header. - */ - txrecord.iov_len = replyhdr.iov_len; + struct iovec replyhdr; + struct iovec txrecord = {0, 0}; + size_t fraglen = 0; + int ret = -1; + + /* After leaving aside the 4 bytes for the fragment header, lets + * encode the RPC reply structure into the buffer given to us. + */ + ret = rpc_reply_to_xdr(&reply, recordstart, rlen, &replyhdr); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, "Failed to create RPC reply"); + goto err; + } + + fraglen = payload + replyhdr.iov_len; + gf_log(GF_RPCSVC, GF_LOG_TRACE, + "Reply fraglen %zu, payload: %zu, " + "rpc hdr: %zu", + fraglen, payload, replyhdr.iov_len); + + txrecord.iov_base = recordstart; + + /* Remember, this is only the vec for the RPC header and does not + * include the payload above. We needed the payload only to calculate + * the size of the full fragment. This size is sent in the fragment + * header. + */ + txrecord.iov_len = replyhdr.iov_len; err: - return txrecord; + return txrecord; } -inline int -rpcsvc_get_callid (rpcsvc_t *rpc) +static uint32_t +rpc_callback_new_callid(struct rpc_transport *trans) { - return GF_UNIVERSAL_ANSWER; + uint32_t callid = 0; + + pthread_mutex_lock(&trans->lock); + { + callid = ++trans->xid; + } + pthread_mutex_unlock(&trans->lock); + + return callid; } int -rpcsvc_fill_callback (int prognum, int progver, int procnum, int payload, - uint64_t xid, struct rpc_msg *request) +rpcsvc_fill_callback(int prognum, int progver, int procnum, int payload, + uint32_t xid, struct rpc_msg *request) { - int ret = -1; + int ret = -1; - if (!request) { - goto out; - } + if (!request) { + goto out; + } - memset (request, 0, sizeof (*request)); + memset(request, 0, sizeof(*request)); - request->rm_xid = xid; - request->rm_direction = CALL; + request->rm_xid = xid; + request->rm_direction = CALL; - request->rm_call.cb_rpcvers = 2; - request->rm_call.cb_prog = prognum; - request->rm_call.cb_vers = progver; - request->rm_call.cb_proc = procnum; + request->rm_call.cb_rpcvers = 2; + request->rm_call.cb_prog = prognum; + request->rm_call.cb_vers = progver; + request->rm_call.cb_proc = procnum; - request->rm_call.cb_cred.oa_flavor = AUTH_NONE; - request->rm_call.cb_cred.oa_base = NULL; - request->rm_call.cb_cred.oa_length = 0; + request->rm_call.cb_cred.oa_flavor = AUTH_NONE; + request->rm_call.cb_cred.oa_base = NULL; + request->rm_call.cb_cred.oa_length = 0; - request->rm_call.cb_verf.oa_flavor = AUTH_NONE; - request->rm_call.cb_verf.oa_base = NULL; - request->rm_call.cb_verf.oa_length = 0; + request->rm_call.cb_verf.oa_flavor = AUTH_NONE; + request->rm_call.cb_verf.oa_base = NULL; + request->rm_call.cb_verf.oa_length = 0; - ret = 0; + ret = 0; out: - return ret; + return ret; } - struct iovec -rpcsvc_callback_build_header (char *recordstart, size_t rlen, +rpcsvc_callback_build_header(char *recordstart, size_t rlen, struct rpc_msg *request, size_t payload) { - struct iovec requesthdr = {0, }; - struct iovec txrecord = {0, 0}; - int ret = -1; - size_t fraglen = 0; - - ret = rpc_request_to_xdr (request, recordstart, rlen, &requesthdr); - if (ret == -1) { - gf_log ("rpcsvc", GF_LOG_DEBUG, - "Failed to create RPC request"); - goto out; - } - - fraglen = payload + requesthdr.iov_len; - gf_log ("rpcsvc", GF_LOG_TRACE, "Request fraglen %zu, payload: %zu, " - "rpc hdr: %zu", fraglen, payload, requesthdr.iov_len); - - txrecord.iov_base = recordstart; - - /* Remember, this is only the vec for the RPC header and does not - * include the payload above. We needed the payload only to calculate - * the size of the full fragment. This size is sent in the fragment - * header. - */ - txrecord.iov_len = requesthdr.iov_len; + struct iovec requesthdr = { + 0, + }; + struct iovec txrecord = {0, 0}; + int ret = -1; + size_t fraglen = 0; + + ret = rpc_request_to_xdr(request, recordstart, rlen, &requesthdr); + if (ret == -1) { + gf_log("rpcsvc", GF_LOG_WARNING, "Failed to create RPC request"); + goto out; + } + + fraglen = payload + requesthdr.iov_len; + gf_log("rpcsvc", GF_LOG_TRACE, + "Request fraglen %zu, payload: %zu, " + "rpc hdr: %zu", + fraglen, payload, requesthdr.iov_len); + + txrecord.iov_base = recordstart; + + /* Remember, this is only the vec for the RPC header and does not + * include the payload above. We needed the payload only to calculate + * the size of the full fragment. This size is sent in the fragment + * header. + */ + txrecord.iov_len = requesthdr.iov_len; out: - return txrecord; + return txrecord; } -struct iobuf * -rpcsvc_callback_build_record (rpcsvc_t *rpc, int prognum, int progver, - int procnum, size_t payload, uint64_t xid, - struct iovec *recbuf) -{ - struct rpc_msg request = {0, }; - struct iobuf *request_iob = NULL; - char *record = NULL; - struct iovec recordhdr = {0, }; - size_t pagesize = 0; - int ret = -1; - - if ((!rpc) || (!recbuf)) { - goto out; - } - - /* First, try to get a pointer into the buffer which the RPC - * layer can use. - */ - request_iob = iobuf_get (rpc->ctx->iobuf_pool); - if (!request_iob) { - gf_log ("rpcsvc", GF_LOG_ERROR, "Failed to get iobuf"); - goto out; - } +static struct iobuf * +rpcsvc_callback_build_record(rpcsvc_t *rpc, int prognum, int progver, + int procnum, size_t payload, u_long xid, + struct iovec *recbuf) +{ + struct rpc_msg request = { + 0, + }; + struct iobuf *request_iob = NULL; + char *record = NULL; + struct iovec recordhdr = { + 0, + }; + size_t pagesize = 0; + size_t xdr_size = 0; + int ret = -1; + + if ((!rpc) || (!recbuf)) { + goto out; + } + + /* Fill the rpc structure and XDR it into the buffer got above. */ + ret = rpcsvc_fill_callback(prognum, progver, procnum, payload, xid, + &request); + if (ret == -1) { + gf_log("rpcsvc", GF_LOG_WARNING, + "cannot build a rpc-request " + "xid (%lu)", + xid); + goto out; + } + + /* First, try to get a pointer into the buffer which the RPC + * layer can use. + */ + xdr_size = xdr_sizeof((xdrproc_t)xdr_callmsg, &request); + + request_iob = iobuf_get2(rpc->ctx->iobuf_pool, (xdr_size + payload)); + if (!request_iob) { + goto out; + } + + pagesize = iobuf_pagesize(request_iob); + + record = iobuf_ptr(request_iob); /* Now we have it. */ + + recordhdr = rpcsvc_callback_build_header(record, pagesize, &request, + payload); + + if (!recordhdr.iov_base) { + gf_log("rpc-clnt", GF_LOG_ERROR, + "Failed to build record " + " header"); + iobuf_unref(request_iob); + request_iob = NULL; + recbuf->iov_base = NULL; + goto out; + } + + recbuf->iov_base = recordhdr.iov_base; + recbuf->iov_len = recordhdr.iov_len; - pagesize = ((struct iobuf_pool *)rpc->ctx->iobuf_pool)->page_size; +out: + return request_iob; +} - record = iobuf_ptr (request_iob); /* Now we have it. */ +int +rpcsvc_request_submit(rpcsvc_t *rpc, rpc_transport_t *trans, + rpcsvc_cbk_program_t *prog, int procnum, void *req, + glusterfs_ctx_t *ctx, xdrproc_t xdrproc) +{ + int ret = -1; + int count = 0; + struct iovec iov = { + 0, + }; + struct iobuf *iobuf = NULL; + ssize_t xdr_size = 0; + struct iobref *iobref = NULL; + + if (!req) + goto out; + + xdr_size = xdr_sizeof(xdrproc, req); + + iobuf = iobuf_get2(ctx->iobuf_pool, xdr_size); + if (!iobuf) + goto out; + + iov.iov_base = iobuf->ptr; + iov.iov_len = iobuf_pagesize(iobuf); + + ret = xdr_serialize_generic(iov, req, xdrproc); + if (ret == -1) { + gf_log(THIS->name, GF_LOG_WARNING, "failed to create XDR payload"); + goto out; + } + iov.iov_len = ret; + count = 1; + + iobref = iobref_new(); + if (!iobref) { + ret = -1; + gf_log("rpcsvc", GF_LOG_WARNING, "Failed to create iobref"); + goto out; + } - /* Fill the rpc structure and XDR it into the buffer got above. */ - ret = rpcsvc_fill_callback (prognum, progver, procnum, payload, xid, - &request); - if (ret == -1) { - gf_log ("rpcsvc", GF_LOG_DEBUG, "cannot build a rpc-request " - "xid (%"PRIu64")", xid); - goto out; - } + iobref_add(iobref, iobuf); - recordhdr = rpcsvc_callback_build_header (record, pagesize, &request, - payload); + ret = rpcsvc_callback_submit(rpc, trans, prog, procnum, &iov, count, + iobref); - if (!recordhdr.iov_base) { - gf_log ("rpc-clnt", GF_LOG_ERROR, "Failed to build record " - " header"); - iobuf_unref (request_iob); - request_iob = NULL; - recbuf->iov_base = NULL; - goto out; - } +out: + if (iobuf) + iobuf_unref(iobuf); - recbuf->iov_base = recordhdr.iov_base; - recbuf->iov_len = recordhdr.iov_len; + if (iobref) + iobref_unref(iobref); -out: - return request_iob; + return ret; } int -rpcsvc_callback_submit (rpcsvc_t *rpc, rpc_transport_t *trans, - rpcsvc_cbk_program_t *prog, int procnum, - struct iovec *proghdr, int proghdrcount) -{ - struct iobuf *request_iob = NULL; - struct iovec rpchdr = {0,}; - rpc_transport_req_t req; - int ret = -1; - int proglen = 0; - uint64_t callid = 0; - - if (!rpc) { - goto out; +rpcsvc_callback_submit(rpcsvc_t *rpc, rpc_transport_t *trans, + rpcsvc_cbk_program_t *prog, int procnum, + struct iovec *proghdr, int proghdrcount, + struct iobref *iobref) +{ + struct iobuf *request_iob = NULL; + struct iovec rpchdr = { + 0, + }; + rpc_transport_req_t req; + int ret = -1; + int proglen = 0; + uint32_t xid = 0; + gf_boolean_t new_iobref = _gf_false; + + if (!rpc) { + goto out; + } + + memset(&req, 0, sizeof(req)); + + if (proghdr) { + proglen += iov_length(proghdr, proghdrcount); + } + + xid = rpc_callback_new_callid(trans); + + request_iob = rpcsvc_callback_build_record( + rpc, prog->prognum, prog->progver, procnum, proglen, xid, &rpchdr); + if (!request_iob) { + gf_log("rpcsvc", GF_LOG_WARNING, "cannot build rpc-record"); + goto out; + } + if (!iobref) { + iobref = iobref_new(); + if (!iobref) { + gf_log("rpcsvc", GF_LOG_WARNING, "Failed to create iobref"); + goto out; } + new_iobref = 1; + } - memset (&req, 0, sizeof (req)); - - callid = rpcsvc_get_callid (rpc); - - if (proghdr) { - proglen += iov_length (proghdr, proghdrcount); - } + iobref_add(iobref, request_iob); - request_iob = rpcsvc_callback_build_record (rpc, prog->prognum, - prog->progver, procnum, - proglen, callid, - &rpchdr); - if (!request_iob) { - gf_log ("rpcsvc", GF_LOG_DEBUG, - "cannot build rpc-record"); - goto out; - } + req.msg.rpchdr = &rpchdr; + req.msg.rpchdrcount = 1; + req.msg.proghdr = proghdr; + req.msg.proghdrcount = proghdrcount; + req.msg.iobref = iobref; - req.msg.rpchdr = &rpchdr; - req.msg.rpchdrcount = 1; - req.msg.proghdr = proghdr; - req.msg.proghdrcount = proghdrcount; + ret = rpc_transport_submit_request(trans, &req); + if (ret == -1) { + gf_log("rpcsvc", GF_LOG_WARNING, "transmission of rpc-request failed"); + goto out; + } - ret = rpc_transport_submit_request (trans, &req); - if (ret == -1) { - gf_log ("rpc-clnt", GF_LOG_DEBUG, - "transmission of rpc-request failed"); - goto out; - } - - ret = 0; + ret = 0; out: - iobuf_unref (request_iob); + iobuf_unref(request_iob); - return ret; + if (new_iobref) + iobref_unref(iobref); + + return ret; } -inline int -rpcsvc_transport_submit (rpc_transport_t *trans, struct iovec *hdrvec, - int hdrcount, struct iovec *proghdr, int proghdrcount, - struct iovec *progpayload, int progpayloadcount, - struct iobref *iobref, void *priv) +int +rpcsvc_transport_submit(rpc_transport_t *trans, struct iovec *rpchdr, + int rpchdrcount, struct iovec *proghdr, + int proghdrcount, struct iovec *progpayload, + int progpayloadcount, struct iobref *iobref, void *priv) { - int ret = -1; - rpc_transport_reply_t reply = {{0, }}; - - if ((!trans) || (!hdrvec) || (!hdrvec->iov_base)) { - goto out; - } - - reply.msg.rpchdr = hdrvec; - reply.msg.rpchdrcount = hdrcount; - reply.msg.proghdr = proghdr; - reply.msg.proghdrcount = proghdrcount; - reply.msg.progpayload = progpayload; - reply.msg.progpayloadcount = progpayloadcount; - reply.msg.iobref = iobref; - reply.private = priv; - - ret = rpc_transport_submit_reply (trans, &reply); + int ret = -1; + rpc_transport_reply_t reply = { + 0, + }; + + if ((!trans) || (!rpchdr) || (!rpchdr->iov_base)) { + goto out; + } + + reply.msg.rpchdr = rpchdr; + reply.msg.rpchdrcount = rpchdrcount; + reply.msg.proghdr = proghdr; + reply.msg.proghdrcount = proghdrcount; + reply.msg.progpayload = progpayload; + reply.msg.progpayloadcount = progpayloadcount; + reply.msg.iobref = iobref; + reply.private = priv; + + ret = rpc_transport_submit_reply(trans, &reply); out: - return ret; + return ret; } - int -rpcsvc_fill_reply (rpcsvc_request_t *req, struct rpc_msg *reply) +rpcsvc_fill_reply(rpcsvc_request_t *req, struct rpc_msg *reply) { - rpcsvc_program_t *prog = NULL; - if ((!req) || (!reply)) - return -1; - - prog = rpcsvc_request_program (req); - if (!prog) - return -1; - - rpc_fill_empty_reply (reply, req->xid); + int ret = -1; + rpcsvc_program_t *prog = NULL; + if ((!req) || (!reply)) + goto out; + + ret = 0; + rpc_fill_empty_reply(reply, req->xid); + if (req->rpc_status == MSG_DENIED) { + rpc_fill_denied_reply(reply, req->rpc_err, req->auth_err); + goto out; + } + + prog = rpcsvc_request_program(req); + + if (req->rpc_status == MSG_ACCEPTED) + rpc_fill_accepted_reply( + reply, req->rpc_err, (prog) ? prog->proglowvers : 0, + (prog) ? prog->proghighvers : 0, req->verf.flavour, + req->verf.datalen, req->verf.authdata); + else + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Invalid rpc_status value"); - if (req->rpc_status == MSG_DENIED) - rpc_fill_denied_reply (reply, req->rpc_err, req->auth_err); - else if (req->rpc_status == MSG_ACCEPTED) - rpc_fill_accepted_reply (reply, req->rpc_err, prog->proglowvers, - prog->proghighvers, req->verf.flavour, - req->verf.datalen, - req->verf.authdata); - else - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Invalid rpc_status value"); - - return 0; +out: + return ret; } - /* Given a request and the reply payload, build a reply and encodes the reply * into a record header. This record header is encoded into the vector pointed * to be recbuf. @@ -1402,53 +1400,60 @@ rpcsvc_fill_reply (rpcsvc_request_t *req, struct rpc_msg *reply) * we should account for the length of that buffer in the RPC fragment header. */ struct iobuf * -rpcsvc_record_build_record (rpcsvc_request_t *req, size_t payload, - struct iovec *recbuf) -{ - struct rpc_msg reply; - struct iobuf *replyiob = NULL; - char *record = NULL; - struct iovec recordhdr = {0, }; - size_t pagesize = 0; - rpcsvc_t *svc = NULL; - int ret = -1; - - if ((!req) || (!req->trans) || (!req->svc) || (!recbuf)) - return NULL; - - svc = req->svc; - replyiob = iobuf_get (svc->ctx->iobuf_pool); - pagesize = iobpool_pagesize ((struct iobuf_pool *)svc->ctx->iobuf_pool); - if (!replyiob) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to get iobuf"); - goto err_exit; - } - - record = iobuf_ptr (replyiob); /* Now we have it. */ - - /* Fill the rpc structure and XDR it into the buffer got above. */ - ret = rpcsvc_fill_reply (req, &reply); - if (ret) - goto err_exit; - - recordhdr = rpcsvc_record_build_header (record, pagesize, reply, - payload); - if (!recordhdr.iov_base) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to build record " - " header"); - iobuf_unref (replyiob); - replyiob = NULL; - recbuf->iov_base = NULL; - goto err_exit; - } - - recbuf->iov_base = recordhdr.iov_base; - recbuf->iov_len = recordhdr.iov_len; +rpcsvc_record_build_record(rpcsvc_request_t *req, size_t payload, size_t hdrlen, + struct iovec *recbuf) +{ + struct rpc_msg reply; + struct iobuf *replyiob = NULL; + char *record = NULL; + struct iovec recordhdr = { + 0, + }; + size_t pagesize = 0; + size_t xdr_size = 0; + rpcsvc_t *svc = NULL; + int ret = -1; + + if ((!req) || (!req->trans) || (!req->svc) || (!recbuf)) + return NULL; + + svc = req->svc; + + /* Fill the rpc structure and XDR it into the buffer got above. */ + ret = rpcsvc_fill_reply(req, &reply); + if (ret) + goto err_exit; + + xdr_size = xdr_sizeof((xdrproc_t)xdr_replymsg, &reply); + + /* Payload would include 'readv' size etc too, where as + that comes as another payload iobuf */ + replyiob = iobuf_get2(svc->ctx->iobuf_pool, (xdr_size + hdrlen)); + if (!replyiob) { + goto err_exit; + } + + pagesize = iobuf_pagesize(replyiob); + + record = iobuf_ptr(replyiob); /* Now we have it. */ + + recordhdr = rpcsvc_record_build_header(record, pagesize, reply, payload); + if (!recordhdr.iov_base) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Failed to build record " + " header"); + iobuf_unref(replyiob); + replyiob = NULL; + recbuf->iov_base = NULL; + goto err_exit; + } + + recbuf->iov_base = recordhdr.iov_base; + recbuf->iov_len = recordhdr.iov_len; err_exit: - return replyiob; + return replyiob; } - /* * The function to submit a program message to the RPC service. * This message is added to the transmission queue of the @@ -1476,209 +1481,344 @@ err_exit: */ int -rpcsvc_submit_generic (rpcsvc_request_t *req, struct iovec *proghdr, - int hdrcount, struct iovec *payload, int payloadcount, - struct iobref *iobref) +rpcsvc_submit_generic(rpcsvc_request_t *req, struct iovec *proghdr, + int hdrcount, struct iovec *payload, int payloadcount, + struct iobref *iobref) { - int ret = -1, i = 0; - struct iobuf *replyiob = NULL; - struct iovec recordhdr = {0, }; - rpc_transport_t *trans = NULL; - size_t msglen = 0; - char new_iobref = 0; - - if ((!req) || (!req->trans)) - return -1; - - trans = req->trans; - - for (i = 0; i < hdrcount; i++) { - msglen += proghdr[i].iov_len; + int ret = -1, i = 0; + struct iobuf *replyiob = NULL; + struct iovec recordhdr = { + 0, + }; + rpc_transport_t *trans = NULL; + size_t msglen = 0; + size_t hdrlen = 0; + char new_iobref = 0; + rpcsvc_drc_globals_t *drc = NULL; + gf_latency_t *lat = NULL; + + if ((!req) || (!req->trans)) + return -1; + + if (req->prog && req->begin.tv_sec) { + if ((req->procnum >= 0) && (req->procnum < req->prog->numactors)) { + timespec_now(&req->end); + lat = &req->prog->latencies[req->procnum]; + gf_latency_update(lat, &req->begin, &req->end); + } + } + trans = req->trans; + + for (i = 0; i < hdrcount; i++) { + msglen += proghdr[i].iov_len; + } + + for (i = 0; i < payloadcount; i++) { + msglen += payload[i].iov_len; + } + + gf_log(GF_RPCSVC, GF_LOG_TRACE, "Tx message: %zu", msglen); + + /* Build the buffer containing the encoded RPC reply. */ + replyiob = rpcsvc_record_build_record(req, msglen, hdrlen, &recordhdr); + if (!replyiob) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Reply record creation failed"); + goto disconnect_exit; + } + + if (!iobref) { + iobref = iobref_new(); + if (!iobref) { + goto disconnect_exit; } - for (i = 0; i < payloadcount; i++) { - msglen += payload[i].iov_len; - } + new_iobref = 1; + } - gf_log (GF_RPCSVC, GF_LOG_TRACE, "Tx message: %zu", msglen); + iobref_add(iobref, replyiob); - /* Build the buffer containing the encoded RPC reply. */ - replyiob = rpcsvc_record_build_record (req, msglen, &recordhdr); - if (!replyiob) { - gf_log (GF_RPCSVC, GF_LOG_ERROR,"Reply record creation failed"); - goto disconnect_exit; - } + /* cache the request in the duplicate request cache for appropriate ops */ + if ((req->reply) && (rpcsvc_need_drc(req))) { + drc = req->svc->drc; - if (!iobref) { - iobref = iobref_new (); - if (!iobref) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "memory allocation " - "failed"); - goto disconnect_exit; - } + LOCK(&drc->lock); + ret = rpcsvc_cache_reply(req, iobref, &recordhdr, 1, proghdr, hdrcount, + payload, payloadcount); + UNLOCK(&drc->lock); + if (ret < 0) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "failed to cache reply"); + } + } + + ret = rpcsvc_transport_submit(trans, &recordhdr, 1, proghdr, hdrcount, + payload, payloadcount, iobref, + req->trans_private); + + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "failed to submit message " + "(XID: 0x%x, Program: %s, ProgVers: %d, Proc: %d) to " + "rpc-transport (%s)", + req->xid, req->prog ? req->prog->progname : "(not matched)", + req->prog ? req->prog->progver : 0, req->procnum, + trans ? trans->name : ""); + } else { + gf_log(GF_RPCSVC, GF_LOG_TRACE, + "submitted reply for rpc-message (XID: 0x%x, " + "Program: %s, ProgVers: %d, Proc: %d) to rpc-transport " + "(%s)", + req->xid, req->prog ? req->prog->progname : "-", + req->prog ? req->prog->progver : 0, req->procnum, + trans ? trans->name : ""); + } - new_iobref = 1; - } +disconnect_exit: + if (replyiob) { + iobuf_unref(replyiob); + } - iobref_add (iobref, replyiob); + if (new_iobref) { + iobref_unref(iobref); + } - ret = rpcsvc_transport_submit (trans, &recordhdr, 1, proghdr, hdrcount, - payload, payloadcount, iobref, - req->trans_private); + rpcsvc_request_destroy(req); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to submit message"); - } + return ret; +} -disconnect_exit: - if (replyiob) { - iobuf_unref (replyiob); - } +int +rpcsvc_error_reply(rpcsvc_request_t *req) +{ + struct iovec dummyvec = { + 0, + }; - if (new_iobref) { - iobref_unref (iobref); - } + if (!req) + return -1; - rpcsvc_request_destroy (req); + gf_log_callingfn("", GF_LOG_DEBUG, "sending a RPC error reply"); - return ret; + /* At this point the req should already have been filled with the + * appropriate RPC error numbers. + */ + return rpcsvc_submit_generic(req, &dummyvec, 0, NULL, 0, NULL); } - +#ifdef IPV6_DEFAULT int -rpcsvc_error_reply (rpcsvc_request_t *req) +rpcsvc_program_register_rpcbind6(rpcsvc_program_t *newprog, uint32_t port) { - struct iovec dummyvec = {0, }; + const int IP_BUF_LEN = 64; + char addr_buf[IP_BUF_LEN]; + + int err = 0; + bool_t success = 0; + struct netconfig *nc; + struct netbuf *nb; + + if (!newprog) { + goto out; + } + + nc = getnetconfigent("tcp6"); + if (!nc) { + err = -1; + goto out; + } + + err = sprintf(addr_buf, "::.%d.%d", port >> 8 & 0xff, port & 0xff); + if (err < 0) { + err = -1; + goto out; + } + + nb = uaddr2taddr(nc, addr_buf); + if (!nb) { + err = -1; + goto out; + } + + /* Force the unregistration of the program first. + * This call may fail if nothing has been registered, + * which is fine. + */ + rpcsvc_program_unregister_rpcbind6(newprog); + + success = rpcb_set(newprog->prognum, newprog->progver, nc, nb); + if (!success) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Could not register the IPv6" + " service with rpcbind"); + } + + err = 0; - if (!req) - return -1; - - /* At this point the req should already have been filled with the - * appropriate RPC error numbers. - */ - return rpcsvc_submit_generic (req, &dummyvec, 0, NULL, 0, NULL); +out: + return err; } +int +rpcsvc_program_unregister_rpcbind6(rpcsvc_program_t *newprog) +{ + int err = 0; + bool_t success = 0; + struct netconfig *nc; + + if (!newprog) { + goto out; + } + + nc = getnetconfigent("tcp6"); + if (!nc) { + err = -1; + goto out; + } + + success = rpcb_unset(newprog->prognum, newprog->progver, nc); + if (!success) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Could not unregister the IPv6" + " service with rpcbind"); + } + + err = 0; +out: + return err; +} +#endif /* Register the program with the local portmapper service. */ -inline int -rpcsvc_program_register_portmap (rpcsvc_program_t *newprog, uint32_t port) +int +rpcsvc_program_register_portmap(rpcsvc_program_t *newprog, uint32_t port) { - int ret = 0; - - if (!newprog) { - goto out; - } - - if (!(pmap_set (newprog->prognum, newprog->progver, IPPROTO_TCP, - port))) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Could not register with" - " portmap"); - goto out; - } - - ret = 0; + int ret = -1; /* FAIL */ + + if (!newprog) { + goto out; + } + + /* pmap_set() returns 0 for FAIL and 1 for SUCCESS */ + if (!(pmap_set(newprog->prognum, newprog->progver, IPPROTO_TCP, port))) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Could not register with" + " portmap %d %d %u", + newprog->prognum, newprog->progver, port); + goto out; + } + + ret = 0; /* SUCCESS */ out: - return ret; + return ret; } - -inline int -rpcsvc_program_unregister_portmap (rpcsvc_program_t *prog) +int +rpcsvc_program_unregister_portmap(rpcsvc_program_t *prog) { - if (!prog) - return -1; + int ret = -1; - if (!(pmap_unset(prog->prognum, prog->progver))) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Could not unregister with" - " portmap"); - return -1; - } + if (!prog) + goto out; + + if (!(pmap_unset(prog->prognum, prog->progver))) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Could not unregister with" + " portmap"); + goto out; + } - return 0; + ret = 0; +out: + return ret; } +int +rpcsvc_register_portmap_enabled(rpcsvc_t *svc) +{ + return svc->register_portmap; +} int32_t -rpcsvc_get_listener_port (rpcsvc_listener_t *listener) +rpcsvc_get_listener_port(rpcsvc_listener_t *listener) { - int32_t listener_port = -1; + int32_t listener_port = -1; - if ((listener == NULL) || (listener->trans == NULL)) { - goto out; - } + if ((listener == NULL) || (listener->trans == NULL)) { + goto out; + } - switch (listener->trans->myinfo.sockaddr.ss_family) { + switch (listener->trans->myinfo.sockaddr.ss_family) { case AF_INET: - listener_port = ((struct sockaddr_in6 *)&listener->trans->myinfo.sockaddr)->sin6_port; - break; + listener_port = ((struct sockaddr_in *)&listener->trans->myinfo + .sockaddr) + ->sin_port; + break; case AF_INET6: - listener_port = ((struct sockaddr_in *)&listener->trans->myinfo.sockaddr)->sin_port; - break; + listener_port = ((struct sockaddr_in6 *)&listener->trans->myinfo + .sockaddr) + ->sin6_port; + break; default: - gf_log (GF_RPCSVC, GF_LOG_DEBUG, - "invalid address family (%d)", - listener->trans->myinfo.sockaddr.ss_family); - goto out; - } + gf_log(GF_RPCSVC, GF_LOG_DEBUG, "invalid address family (%d)", + listener->trans->myinfo.sockaddr.ss_family); + goto out; + } - listener_port = ntohs (listener_port); + listener_port = ntohs(listener_port); out: - return listener_port; + return listener_port; } - rpcsvc_listener_t * -rpcsvc_get_listener (rpcsvc_t *svc, uint16_t port, rpc_transport_t *trans) +rpcsvc_get_listener(rpcsvc_t *svc, uint16_t port, rpc_transport_t *trans) { - rpcsvc_listener_t *listener = NULL; - char found = 0; - uint32_t listener_port = 0; - - if (!svc) { - goto out; - } - - pthread_mutex_lock (&svc->rpclock); + rpcsvc_listener_t *listener = NULL; + char found = 0; + rpcsvc_listener_t *next = NULL; + uint32_t listener_port = 0; + + if (!svc) { + goto out; + } + + pthread_rwlock_rdlock(&svc->rpclock); + { + list_for_each_entry_safe(listener, next, &svc->listeners, list) { - list_for_each_entry (listener, &svc->listeners, list) { - if (trans != NULL) { - if (listener->trans == trans) { - found = 1; - break; - } - - continue; - } + if (trans != NULL) { + if (listener->trans == trans) { + found = 1; + break; + } - listener_port = rpcsvc_get_listener_port (listener); - if (listener_port == -1) { - gf_log (GF_RPCSVC, GF_LOG_DEBUG, - "invalid port for listener %s", - listener->trans->name); - continue; - } + continue; + } - if (listener_port == port) { - found = 1; - break; - } - } - } - pthread_mutex_unlock (&svc->rpclock); + listener_port = rpcsvc_get_listener_port(listener); + if (listener_port == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "invalid port for listener %s", + listener->trans->name); + continue; + } - if (!found) { - listener = NULL; + if (listener_port == port) { + found = 1; + break; + } } + } + pthread_rwlock_unlock(&svc->rpclock); + + if (!found) { + listener = NULL; + } out: - return listener; + return listener; } - /* The only difference between the generic submit and this one is that the * generic submit is also used for submitting RPC error replies in where there * are no payloads so the msgvec and msgbuf can be NULL. @@ -1686,531 +1826,1470 @@ out: * we must perform NULL checks before calling the generic submit. */ int -rpcsvc_submit_message (rpcsvc_request_t *req, struct iovec *proghdr, - int hdrcount, struct iovec *payload, int payloadcount, - struct iobref *iobref) +rpcsvc_submit_message(rpcsvc_request_t *req, struct iovec *proghdr, + int hdrcount, struct iovec *payload, int payloadcount, + struct iobref *iobref) { - if ((!req) || (!req->trans) || (!proghdr) || (!proghdr->iov_base)) - return -1; + if ((!req) || (!req->trans) || (!proghdr) || (!proghdr->iov_base)) + return -1; - return rpcsvc_submit_generic (req, proghdr, hdrcount, payload, - payloadcount, iobref); + return rpcsvc_submit_generic(req, proghdr, hdrcount, payload, payloadcount, + iobref); } +void +rpcsvc_program_destroy(rpcsvc_program_t *program) +{ + if (program) { + GF_FREE(program->latencies); + GF_FREE(program); + } +} int -rpcsvc_program_unregister (rpcsvc_t *svc, rpcsvc_program_t *prog) +rpcsvc_program_unregister(rpcsvc_t *svc, rpcsvc_program_t *program) { - int ret = -1; - - if (!svc || !prog) { - goto out; - } + int ret = -1; + rpcsvc_program_t *prog = NULL; + if (!svc || !program) { + goto out; + } + + pthread_rwlock_rdlock(&svc->rpclock); + { + list_for_each_entry(prog, &svc->programs, program) + { + if ((prog->prognum == program->prognum) && + (prog->progver == program->progver)) { + break; + } + } + } + pthread_rwlock_unlock(&svc->rpclock); + + ret = rpcsvc_program_unregister_portmap(program); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "portmap unregistration of" + " program failed"); + goto out; + } +#ifdef IPV6_DEFAULT + ret = rpcsvc_program_unregister_rpcbind6(program); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "rpcbind (ipv6)" + " unregistration of program failed"); + goto out; + } +#endif - ret = rpcsvc_program_unregister_portmap (prog); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "portmap unregistration of" - " program failed"); - goto out; - } + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "Program unregistered: %s, Num: %d," + " Ver: %d, Port: %d", + prog->progname, prog->prognum, prog->progver, prog->progport); - gf_log (GF_RPCSVC, GF_LOG_DEBUG, "Program unregistered: %s, Num: %d," - " Ver: %d, Port: %d", prog->progname, prog->prognum, - prog->progver, prog->progport); + if (prog->ownthread) { + prog->alive = _gf_false; + ret = 0; + goto out; + } - pthread_mutex_lock (&svc->rpclock); - { - list_del (&prog->program); - } - pthread_mutex_unlock (&svc->rpclock); + pthread_rwlock_wrlock(&svc->rpclock); + { + list_del_init(&prog->program); + } + pthread_rwlock_unlock(&svc->rpclock); - ret = 0; + ret = 0; out: - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Program unregistration failed" - ": %s, Num: %d, Ver: %d, Port: %d", prog->progname, - prog->prognum, prog->progver, prog->progport); + rpcsvc_program_destroy(prog); + + if (ret == -1) { + if (program) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Program " + "unregistration failed" + ": %s, Num: %d, Ver: %d, Port: %d", + program->progname, program->prognum, program->progver, + program->progport); + } else { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Program not found"); } + } - return ret; + return ret; } - -inline int -rpcsvc_transport_peername (rpc_transport_t *trans, char *hostname, int hostlen) +int +rpcsvc_transport_peername(rpc_transport_t *trans, char *hostname, int hostlen) { - if (!trans) { - return -1; - } + if (!trans) { + return -1; + } - return rpc_transport_get_peername (trans, hostname, hostlen); + return rpc_transport_get_peername(trans, hostname, hostlen); } - -inline int -rpcsvc_transport_peeraddr (rpc_transport_t *trans, char *addrstr, int addrlen, - struct sockaddr_storage *sa, socklen_t sasize) +int +rpcsvc_transport_peeraddr(rpc_transport_t *trans, char *addrstr, int addrlen, + struct sockaddr_storage *sa, socklen_t sasize) { - if (!trans) { - return -1; - } + if (!trans) { + return -1; + } - return rpc_transport_get_peeraddr(trans, addrstr, addrlen, sa, - sasize); + return rpc_transport_get_peeraddr(trans, addrstr, addrlen, sa, sasize); } +rpcsvc_listener_t * +rpcsvc_listener_alloc(rpcsvc_t *svc, rpc_transport_t *trans) +{ + rpcsvc_listener_t *listener = NULL; + + listener = GF_CALLOC(1, sizeof(*listener), gf_common_mt_rpcsvc_listener_t); + if (!listener) { + goto out; + } + + listener->trans = trans; + listener->svc = svc; + + INIT_LIST_HEAD(&listener->list); -rpc_transport_t * -rpcsvc_transport_create (rpcsvc_t *svc, dict_t *options, char *name) + pthread_rwlock_wrlock(&svc->rpclock); + { + list_add_tail(&listener->list, &svc->listeners); + } + pthread_rwlock_unlock(&svc->rpclock); +out: + return listener; +} + +int32_t +rpcsvc_create_listener(rpcsvc_t *svc, dict_t *options, char *name) { - int ret = -1; - rpc_transport_t *trans = NULL; + rpc_transport_t *trans = NULL; + rpcsvc_listener_t *listener = NULL; + int32_t ret = -1; + + if (!svc || !options) { + goto out; + } + + trans = rpc_transport_load(svc->ctx, options, name); + if (!trans) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, + "cannot create listener, " + "initing the transport failed"); + goto out; + } + + ret = rpc_transport_listen(trans); + if (ret == -EADDRINUSE || ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, "listening on transport failed"); + goto out; + } + + ret = rpc_transport_register_notify(trans, rpcsvc_notify, svc); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_WARNING, "registering notify failed"); + goto out; + } + + listener = rpcsvc_listener_alloc(svc, trans); + if (listener == NULL) { + ret = -1; + goto out; + } - trans = rpc_transport_load (svc->ctx, options, name); - if (!trans) { - gf_log (GF_RPCSVC, GF_LOG_DEBUG, "cannot create listener, " - "initing the transport failed"); - goto out; - } + ret = 0; +out: + if (!listener && trans) { + rpc_transport_disconnect(trans, _gf_true); + rpc_transport_cleanup(trans); + } + + return ret; +} - ret = rpc_transport_listen (trans); +int32_t +rpcsvc_create_listeners(rpcsvc_t *svc, dict_t *options, char *name) +{ + int32_t ret = -1, count = 0; + data_t *data = NULL; + char *str = NULL, *ptr = NULL, *transport_name = NULL; + char *transport_type = NULL, *saveptr = NULL, *tmp = NULL; + + if ((svc == NULL) || (options == NULL) || (name == NULL)) { + goto out; + } + + data = dict_get(options, "transport-type"); + if (data == NULL) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "option transport-type not set"); + goto out; + } + + transport_type = data_to_str(data); + if (transport_type == NULL) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "option transport-type not set"); + goto out; + } + + /* duplicate transport_type, since following dict_set will free it */ + transport_type = gf_strdup(transport_type); + if (transport_type == NULL) { + goto out; + } + + str = gf_strdup(transport_type); + if (str == NULL) { + goto out; + } + + ptr = strtok_r(str, ",", &saveptr); + + while (ptr != NULL) { + tmp = gf_strdup(ptr); + if (tmp == NULL) { + goto out; + } + + ret = gf_asprintf(&transport_name, "%s.%s", tmp, name); if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_DEBUG, - "listening on transport failed"); - goto out; + goto out; } - ret = rpc_transport_register_notify (trans, rpcsvc_notify, svc); + ret = dict_set_dynstr(options, "transport-type", tmp); if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_DEBUG, "registering notify failed"); - goto out; + goto out; } - ret = 0; -out: - if ((ret == -1) && (trans)) { - rpc_transport_disconnect (trans); - trans = NULL; + tmp = NULL; + ptr = strtok_r(NULL, ",", &saveptr); + + ret = rpcsvc_create_listener(svc, options, transport_name); + if (ret != 0) { + goto out; } - return trans; -} + dict_del(options, "notify-poller-death"); + GF_FREE(transport_name); + transport_name = NULL; + count++; + } -rpcsvc_listener_t * -rpcsvc_listener_alloc (rpcsvc_t *svc, rpc_transport_t *trans) -{ - rpcsvc_listener_t *listener = NULL; + ret = dict_set_dynstr(options, "transport-type", transport_type); + if (ret == -1) { + goto out; + } - listener = GF_CALLOC (1, sizeof (*listener), - gf_common_mt_rpcsvc_listener_t); - if (!listener) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "memory allocation failed"); - goto out; - } + transport_type = NULL; + +out: + GF_FREE(str); + + GF_FREE(transport_type); - listener->trans = trans; - listener->svc = svc; + GF_FREE(tmp); - INIT_LIST_HEAD (&listener->list); + GF_FREE(transport_name); - pthread_mutex_lock (&svc->rpclock); + if (count > 0) { + return count; + } else { + return ret; + } +} + +int +rpcsvc_unregister_notify(rpcsvc_t *svc, rpcsvc_notify_t notify, void *mydata) +{ + rpcsvc_notify_wrapper_t *wrapper = NULL, *tmp = NULL; + int ret = 0; + + if (!svc || !notify) { + goto out; + } + + pthread_rwlock_wrlock(&svc->rpclock); + { + list_for_each_entry_safe(wrapper, tmp, &svc->notify, list) { - list_add_tail (&listener->list, &svc->listeners); + if ((wrapper->notify == notify) && (mydata == wrapper->data)) { + list_del_init(&wrapper->list); + GF_FREE(wrapper); + ret++; + } } - pthread_mutex_unlock (&svc->rpclock); + } + pthread_rwlock_unlock(&svc->rpclock); + out: - return listener; + return ret; } +int +rpcsvc_register_notify(rpcsvc_t *svc, rpcsvc_notify_t notify, void *mydata) +{ + rpcsvc_notify_wrapper_t *wrapper = NULL; + int ret = -1; + + wrapper = rpcsvc_notify_wrapper_alloc(); + if (!wrapper) { + goto out; + } + svc->mydata = mydata; + wrapper->data = mydata; + wrapper->notify = notify; + + pthread_rwlock_wrlock(&svc->rpclock); + { + list_add_tail(&wrapper->list, &svc->notify); + svc->notify_count++; + } + pthread_rwlock_unlock(&svc->rpclock); + + ret = 0; +out: + return ret; +} -int32_t -rpcsvc_create_listener (rpcsvc_t *svc, dict_t *options, char *name) +void * +rpcsvc_request_handler(void *arg) { - rpc_transport_t *trans = NULL; - rpcsvc_listener_t *listener = NULL; - int32_t ret = -1; + rpcsvc_request_queue_t *queue = NULL; + rpcsvc_program_t *program = NULL; + rpcsvc_request_t *req = NULL, *tmp_req = NULL; + rpcsvc_actor_t *actor = NULL; + gf_boolean_t done = _gf_false; + int ret = 0; + struct list_head tmp_list; - if (!svc || !options) { - goto out; + queue = arg; + program = queue->program; + + INIT_LIST_HEAD(&tmp_list); + + if (!program) + return NULL; + + while (1) { + pthread_mutex_lock(&queue->queue_lock); + { + if (!program->alive && list_empty(&queue->request_queue)) { + done = 1; + goto unlock; + } + + while (list_empty(&queue->request_queue)) { + queue->waiting = _gf_true; + pthread_cond_wait(&queue->queue_cond, &queue->queue_lock); + } + + queue->waiting = _gf_false; + + if (!list_empty(&queue->request_queue)) { + INIT_LIST_HEAD(&tmp_list); + list_splice_init(&queue->request_queue, &tmp_list); + } } + unlock: + pthread_mutex_unlock(&queue->queue_lock); - trans = rpcsvc_transport_create (svc, options, name); - if (!trans) { - goto out; + list_for_each_entry_safe(req, tmp_req, &tmp_list, request_list) + { + if (req) { + list_del_init(&req->request_list); + + if (req->prognum == RPCSVC_INFRA_PROGRAM) { + switch (req->procnum) { + case RPCSVC_PROC_EVENT_THREAD_DEATH: + gf_log(GF_RPCSVC, GF_LOG_INFO, + "event thread died, exiting request handler " + "thread for queue %d of program %s", + (int)(queue - &program->request_queue[0]), + program->progname); + done = 1; + pthread_mutex_lock(&program->thr_lock); + { + rpcsvc_toggle_queue_status( + program, queue, + program->request_queue_status); + program->threadcount--; + } + pthread_mutex_unlock(&program->thr_lock); + rpcsvc_request_destroy(req); + break; + + default: + break; + } + } else { + THIS = req->svc->xl; + actor = rpcsvc_program_actor(req); + ret = actor->actor(req); + + if (ret != 0) { + rpcsvc_check_and_reply_error(ret, NULL, req); + } + req = NULL; + } + } } - listener = rpcsvc_listener_alloc (svc, trans); - if (listener == NULL) { - goto out; + if (done) + break; + } + + return NULL; +} + +int +rpcsvc_program_register(rpcsvc_t *svc, rpcsvc_program_t *program, + gf_boolean_t add_to_head) +{ + int ret = -1, i = 0; + rpcsvc_program_t *newprog = NULL; + char already_registered = 0; + pthread_mutexattr_t attr[EVENT_MAX_THREADS]; + pthread_mutexattr_t thr_attr; + + if (!svc) { + goto out; + } + + if (program->actors == NULL) { + goto out; + } + + pthread_rwlock_rdlock(&svc->rpclock); + { + list_for_each_entry(newprog, &svc->programs, program) + { + if ((newprog->prognum == program->prognum) && + (newprog->progver == program->progver)) { + already_registered = 1; + break; + } } + } + pthread_rwlock_unlock(&svc->rpclock); + if (already_registered) { ret = 0; -out: - if (!listener && trans) { - rpc_transport_disconnect (trans); - } + goto out; + } + + newprog = GF_CALLOC(1, sizeof(*newprog), gf_common_mt_rpcsvc_program_t); + if (newprog == NULL) { + goto out; + } + + memcpy(newprog, program, sizeof(*program)); + newprog->latencies = gf_latency_new(program->numactors); + if (!newprog->latencies) { + rpcsvc_program_destroy(newprog); + goto out; + } + + INIT_LIST_HEAD(&newprog->program); + pthread_mutexattr_init(&thr_attr); + pthread_mutexattr_settype(&thr_attr, PTHREAD_MUTEX_ADAPTIVE_NP); + + for (i = 0; i < EVENT_MAX_THREADS; i++) { + pthread_mutexattr_init(&attr[i]); + pthread_mutexattr_settype(&attr[i], PTHREAD_MUTEX_ADAPTIVE_NP); + INIT_LIST_HEAD(&newprog->request_queue[i].request_queue); + pthread_mutex_init(&newprog->request_queue[i].queue_lock, &attr[i]); + pthread_cond_init(&newprog->request_queue[i].queue_cond, NULL); + newprog->request_queue[i].program = newprog; + } + + pthread_mutex_init(&newprog->thr_lock, &thr_attr); + pthread_cond_init(&newprog->thr_cond, NULL); + + newprog->alive = _gf_true; + + if (gf_async_ctrl.enabled) { + newprog->ownthread = _gf_false; + newprog->synctask = _gf_false; + } + + /* make sure synctask gets priority over ownthread */ + if (newprog->synctask) + newprog->ownthread = _gf_false; + + if (newprog->ownthread) { + struct event_pool *ep = svc->ctx->event_pool; + newprog->eventthreadcount = ep->eventthreadcount; + + pthread_key_create(&newprog->req_queue_key, NULL); + newprog->thr_queue = 1; + } + + pthread_rwlock_wrlock(&svc->rpclock); + { + if (add_to_head) + list_add(&newprog->program, &svc->programs); + else + list_add_tail(&newprog->program, &svc->programs); + } + pthread_rwlock_unlock(&svc->rpclock); - return ret; + ret = 0; + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "New program registered: %s, Num: %d," + " Ver: %d, Port: %d", + newprog->progname, newprog->prognum, newprog->progver, + newprog->progport); + +out: + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Program registration failed:" + " %s, Num: %d, Ver: %d, Port: %d", + program->progname, program->prognum, program->progver, + program->progport); + } + + return ret; } +static void +free_prog_details(gf_dump_rsp *rsp) +{ + gf_prog_detail *prev = NULL; + gf_prog_detail *trav = NULL; + + trav = rsp->prog; + while (trav) { + prev = trav; + trav = trav->next; + GF_FREE(prev); + } +} -int32_t -rpcsvc_create_listeners (rpcsvc_t *svc, dict_t *options, char *name) +static int +build_prog_details(rpcsvc_request_t *req, gf_dump_rsp *rsp) { - int32_t ret = -1, count = 0; - data_t *data = NULL; - char *str = NULL, *ptr = NULL, *transport_name = NULL; - char *transport_type = NULL, *saveptr = NULL, *tmp = NULL; + int ret = -1; + rpcsvc_program_t *program = NULL; + gf_prog_detail *prog = NULL; + gf_prog_detail *prev = NULL; - if ((svc == NULL) || (options == NULL) || (name == NULL)) { - goto out; - } + if (!req || !req->trans || !req->svc) + goto out; - data = dict_get (options, "transport-type"); - if (data == NULL) { - gf_log (GF_RPCSVC, GF_LOG_DEBUG, - "option transport-type not set"); - goto out; - } + pthread_rwlock_rdlock(&req->svc->rpclock); + { + list_for_each_entry(program, &req->svc->programs, program) + { + prog = GF_CALLOC(1, sizeof(*prog), 0); + if (!prog) + goto unlock; - transport_type = data_to_str (data); - if (transport_type == NULL) { - gf_log (GF_RPCSVC, GF_LOG_DEBUG, - "option transport-type not set"); - goto out; - } + prog->progname = program->progname; + prog->prognum = program->prognum; + prog->progver = program->progver; - /* duplicate transport_type, since following dict_set will free it */ - transport_type = gf_strdup (transport_type); - if (transport_type == NULL) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "out of memory"); - goto out; + if (!rsp->prog) + rsp->prog = prog; + if (prev) + prev->next = prog; + prev = prog; } + if (prev) + ret = 0; + } +unlock: + pthread_rwlock_unlock(&req->svc->rpclock); +out: + return ret; +} - str = gf_strdup (transport_type); - if (str == NULL) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "out of memory"); - goto out; - } +static int +rpcsvc_ping(rpcsvc_request_t *req) +{ + char rsp_buf[8 * 1024] = { + 0, + }; + gf_common_rsp rsp = { + 0, + }; + struct iovec iov = { + 0, + }; + int ret = -1; + uint32_t ping_rsp_len = 0; + + ping_rsp_len = xdr_sizeof((xdrproc_t)xdr_gf_common_rsp, &rsp); + + iov.iov_base = rsp_buf; + iov.iov_len = ping_rsp_len; + + ret = xdr_serialize_generic(iov, &rsp, (xdrproc_t)xdr_gf_common_rsp); + if (ret < 0) { + ret = RPCSVC_ACTOR_ERROR; + } else { + rsp.op_ret = 0; + rpcsvc_submit_generic(req, &iov, 1, NULL, 0, NULL); + } + + return 0; +} - ptr = strtok_r (str, ",", &saveptr); +static int +rpcsvc_dump(rpcsvc_request_t *req) +{ + char rsp_buf[8 * 1024] = { + 0, + }; + gf_dump_rsp rsp = { + 0, + }; + struct iovec iov = { + 0, + }; + int op_errno = EINVAL; + int ret = -1; + uint32_t dump_rsp_len = 0; + + if (!req) + goto sendrsp; + + ret = build_prog_details(req, &rsp); + if (ret < 0) { + op_errno = -ret; + goto sendrsp; + } + + op_errno = 0; + +sendrsp: + rsp.op_errno = gf_errno_to_error(op_errno); + rsp.op_ret = ret; + + dump_rsp_len = xdr_sizeof((xdrproc_t)xdr_gf_dump_rsp, &rsp); + + iov.iov_base = rsp_buf; + iov.iov_len = dump_rsp_len; + + ret = xdr_serialize_generic(iov, &rsp, (xdrproc_t)xdr_gf_dump_rsp); + if (ret < 0) { + ret = RPCSVC_ACTOR_ERROR; + } else { + rpcsvc_submit_generic(req, &iov, 1, NULL, 0, NULL); + ret = 0; + } - while (ptr != NULL) { - tmp = gf_strdup (ptr); - if (tmp == NULL) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "out of memory"); - goto out; - } + free_prog_details(&rsp); - ret = gf_asprintf (&transport_name, "%s.%s", tmp, name); - if (ret == -1) { - goto out; - } + return ret; +} - ret = dict_set_dynstr (options, "transport-type", tmp); - if (ret == -1) { - goto out; - } +int +rpcsvc_init_options(rpcsvc_t *svc, dict_t *options) +{ + char *optstr = NULL; + int ret = -1; - tmp = NULL; - ptr = strtok_r (NULL, ",", &saveptr); + if ((!svc) || (!options)) + return -1; - ret = rpcsvc_create_listener (svc, options, transport_name); - if (ret != 0) { - goto out; - } + svc->memfactor = RPCSVC_DEFAULT_MEMFACTOR; - GF_FREE (transport_name); - count++; + svc->register_portmap = _gf_true; + if (dict_get(options, "rpc.register-with-portmap")) { + ret = dict_get_str(options, "rpc.register-with-portmap", &optstr); + if (ret < 0) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Failed to parse " + "dict"); + goto out; } - ret = dict_set_dynstr (options, "transport-type", transport_type); + ret = gf_string2boolean(optstr, &svc->register_portmap); + if (ret < 0) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Failed to parse bool " + "string"); + goto out; + } + } + + if (!svc->register_portmap) + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "Portmap registration " + "disabled"); + ret = 0; +out: + return ret; +} + +int +rpcsvc_reconfigure_options(rpcsvc_t *svc, dict_t *options) +{ + xlator_t *xlator = NULL; + xlator_list_t *volentry = NULL; + char *srchkey = NULL; + char *keyval = NULL; + int ret = -1; + + if ((!svc) || (!svc->options) || (!options)) + return (-1); + + /* Fetch the xlator from svc */ + xlator = svc->xl; + if (!xlator) + return (-1); + + /* Reconfigure the volume specific rpc-auth.addr allow part */ + volentry = xlator->children; + while (volentry) { + ret = gf_asprintf(&srchkey, "rpc-auth.addr.%s.allow", + volentry->xlator->name); if (ret == -1) { - goto out; + gf_log(GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); + return (-1); + } + + /* key-string: rpc-auth.addr.<volname>.allow + * + * IMP: Delete the OLD key/value pair from dict. + * And set the NEW key/value pair IFF the option is SET + * in reconfigured volfile. + * + * NB: If rpc-auth.addr.<volname>.allow is not SET explicitly, + * build_nfs_graph() sets it as "*" i.e. anonymous. + */ + dict_del(svc->options, srchkey); + if (!dict_get_str(options, srchkey, &keyval)) { + ret = dict_set_dynstr_with_alloc(svc->options, srchkey, keyval); + if (ret < 0) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "dict_set_str error"); + GF_FREE(srchkey); + return (-1); + } + } + + GF_FREE(srchkey); + volentry = volentry->next; + } + + /* Reconfigure the volume specific rpc-auth.addr reject part */ + volentry = xlator->children; + while (volentry) { + ret = gf_asprintf(&srchkey, "rpc-auth.addr.%s.reject", + volentry->xlator->name); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); + return (-1); } - transport_type = NULL; - -out: - if (str != NULL) { - GF_FREE (str); + /* key-string: rpc-auth.addr.<volname>.reject + * + * IMP: Delete the OLD key/value pair from dict. + * And set the NEW key/value pair IFF the option is SET + * in reconfigured volfile. + * + * NB: No default value for reject key. + */ + dict_del(svc->options, srchkey); + if (!dict_get_str(options, srchkey, &keyval)) { + ret = dict_set_dynstr_with_alloc(svc->options, srchkey, keyval); + if (ret < 0) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "dict_set_str error"); + GF_FREE(srchkey); + return (-1); + } } - if (transport_type != NULL) { - GF_FREE (transport_type); - } + GF_FREE(srchkey); + volentry = volentry->next; + } - if (tmp != NULL) { - GF_FREE (tmp); - } + ret = rpcsvc_init_options(svc, options); + if (ret) + return (-1); - return count; + return rpcsvc_auth_reconf(svc, options); } - int -rpcsvc_unregister_notify (rpcsvc_t *svc, rpcsvc_notify_t notify, void *mydata) +rpcsvc_transport_unix_options_build(dict_t *dict, char *filepath) { - rpcsvc_notify_wrapper_t *wrapper = NULL, *tmp = NULL; - int ret = 0; + char *fpath = NULL; + int ret = -1; - if (!svc || !notify) { - goto out; - } + GF_ASSERT(filepath); + GF_VALIDATE_OR_GOTO("rpcsvc", dict, out); - pthread_mutex_lock (&svc->rpclock); - { - list_for_each_entry_safe (wrapper, tmp, &svc->notify, list) { - if ((wrapper->notify == notify) - && (mydata == wrapper->data)) { - list_del_init (&wrapper->list); - GF_FREE (wrapper); - ret++; - } - } - } - pthread_mutex_unlock (&svc->rpclock); + fpath = gf_strdup(filepath); + if (!fpath) { + ret = -1; + goto out; + } + + ret = dict_set_dynstr(dict, "transport.socket.listen-path", fpath); + if (ret) + goto out; + + ret = dict_set_str(dict, "transport.address-family", "unix"); + if (ret) + goto out; + ret = dict_set_str(dict, "transport.socket.nodelay", "off"); + if (ret) + goto out; + + ret = dict_set_str(dict, "transport-type", "socket"); + if (ret) + goto out; out: - return ret; + if (ret) { + GF_FREE(fpath); + } + return ret; } +/* + * Configure() the rpc.outstanding-rpc-limit param. + * If dict_get_int32() for dict-key "rpc.outstanding-rpc-limit" FAILS, + * it would set the value as "defvalue". Otherwise it would fetch the + * value and round up to multiple-of-8. defvalue must be +ve. + * + * NB: defval or set-value "0" is special which means unlimited/65536. + */ int -rpcsvc_register_notify (rpcsvc_t *svc, rpcsvc_notify_t notify, void *mydata) +rpcsvc_set_outstanding_rpc_limit(rpcsvc_t *svc, dict_t *options, int defvalue) { - rpcsvc_notify_wrapper_t *wrapper = NULL; - int ret = -1; + int ret = -1; /* FAILURE */ + int rpclim = 0; + static char *rpclimkey = "rpc.outstanding-rpc-limit"; + + if ((!svc) || (!options)) + return (-1); + + if ((defvalue < RPCSVC_MIN_OUTSTANDING_RPC_LIMIT) || + (defvalue > RPCSVC_MAX_OUTSTANDING_RPC_LIMIT)) { + return (-1); + } + + /* Fetch the rpc.outstanding-rpc-limit from dict. */ + ret = dict_get_int32(options, rpclimkey, &rpclim); + if (ret < 0) { + /* Fall back to default for FAILURE */ + rpclim = defvalue; + } + + /* Round up to multiple-of-8. It must not exceed + * RPCSVC_MAX_OUTSTANDING_RPC_LIMIT. + */ + rpclim = ((rpclim + 8 - 1) >> 3) * 8; + if (rpclim > RPCSVC_MAX_OUTSTANDING_RPC_LIMIT) { + rpclim = RPCSVC_MAX_OUTSTANDING_RPC_LIMIT; + } + + if (svc->outstanding_rpc_limit != rpclim) { + svc->outstanding_rpc_limit = rpclim; + gf_log(GF_RPCSVC, GF_LOG_INFO, "Configured %s with value %d", rpclimkey, + rpclim); + } + + return (0); +} - wrapper = rpcsvc_notify_wrapper_alloc (); - if (!wrapper) { - goto out; - } - svc->mydata = mydata; /* this_xlator */ - wrapper->data = mydata; - wrapper->notify = notify; +/* + * Enable throttling for rpcsvc_t svc. + * Returns 0 on success, -1 otherwise. + */ +int +rpcsvc_set_throttle_on(rpcsvc_t *svc) +{ + if (!svc) + return -1; - pthread_mutex_lock (&svc->rpclock); - { - list_add_tail (&wrapper->list, &svc->notify); - svc->notify_count++; - } - pthread_mutex_unlock (&svc->rpclock); + svc->throttle = _gf_true; - ret = 0; -out: - return ret; + return 0; } +/* + * Disable throttling for rpcsvc_t svc. + * Returns 0 on success, -1 otherwise. + */ +int +rpcsvc_set_throttle_off(rpcsvc_t *svc) +{ + if (!svc) + return -1; + + svc->throttle = _gf_false; -inline int -rpcsvc_program_register (rpcsvc_t *svc, rpcsvc_program_t *program) + return 0; +} + +/* + * Get throttle state for rpcsvc_t svc. + * Returns value of attribute throttle on success, _gf_false otherwise. + */ +gf_boolean_t +rpcsvc_get_throttle(rpcsvc_t *svc) { - int ret = -1; + if (!svc) + return _gf_false; - if (!svc) { - goto out; - } + return svc->throttle; +} - if (program->actors == NULL) { - goto out; - } +/* Function call to cleanup resources for svc + */ +int +rpcsvc_destroy(rpcsvc_t *svc) +{ + struct rpcsvc_auth_list *auth = NULL; + struct rpcsvc_auth_list *tmp = NULL; + rpcsvc_listener_t *listener = NULL; + rpcsvc_listener_t *next = NULL; + int ret = 0; - INIT_LIST_HEAD (&program->program); + if (!svc) + return ret; - pthread_mutex_lock (&svc->rpclock); - { - list_add_tail (&program->program, &svc->programs); - } - pthread_mutex_unlock (&svc->rpclock); + list_for_each_entry_safe(listener, next, &svc->listeners, list) + { + rpcsvc_listener_destroy(listener); + } - ret = 0; - gf_log (GF_RPCSVC, GF_LOG_DEBUG, "New program registered: %s, Num: %d," - " Ver: %d, Port: %d", program->progname, program->prognum, - program->progver, program->progport); + list_for_each_entry_safe(auth, tmp, &svc->authschemes, authlist) + { + list_del_init(&auth->authlist); + GF_FREE(auth); + } -out: - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Program registration failed:" - " %s, Num: %d, Ver: %d, Port: %d", program->progname, - program->prognum, program->progver, program->progport); - } + rpcsvc_program_unregister(svc, &gluster_dump_prog); + if (svc->rxpool) { + mem_pool_destroy(svc->rxpool); + svc->rxpool = NULL; + } - return ret; + pthread_rwlock_destroy(&svc->rpclock); + GF_FREE(svc); + + return ret; } +/* The global RPC service initializer. + */ +rpcsvc_t * +rpcsvc_init(xlator_t *xl, glusterfs_ctx_t *ctx, dict_t *options, + uint32_t poolcount) +{ + rpcsvc_t *svc = NULL; + int ret = -1; + + if ((!xl) || (!ctx) || (!options)) + return NULL; + + svc = GF_CALLOC(1, sizeof(*svc), gf_common_mt_rpcsvc_t); + if (!svc) + return NULL; + + pthread_rwlock_init(&svc->rpclock, NULL); + INIT_LIST_HEAD(&svc->authschemes); + INIT_LIST_HEAD(&svc->notify); + INIT_LIST_HEAD(&svc->listeners); + INIT_LIST_HEAD(&svc->programs); + + ret = rpcsvc_init_options(svc, options); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "Failed to init options"); + goto free_svc; + } + + if (!poolcount) + poolcount = RPCSVC_POOLCOUNT_MULT * svc->memfactor; + + gf_log(GF_RPCSVC, GF_LOG_TRACE, "rx pool: %d", poolcount); + svc->rxpool = mem_pool_new(rpcsvc_request_t, poolcount); + /* TODO: leak */ + if (!svc->rxpool) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "mem pool allocation failed"); + goto free_svc; + } + + ret = rpcsvc_auth_init(svc, options); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Failed to init " + "authentication"); + goto free_svc; + } + + ret = -1; + svc->options = options; + svc->ctx = ctx; + svc->xl = xl; + gf_log(GF_RPCSVC, GF_LOG_DEBUG, "RPC service inited."); + + gluster_dump_prog.options = options; + + ret = rpcsvc_program_register(svc, &gluster_dump_prog, _gf_false); + if (ret) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "failed to register DUMP program"); + goto free_svc; + } + + ret = 0; +free_svc: + if (ret == -1) { + GF_FREE(svc); + svc = NULL; + } -static void -free_prog_details (gf_dump_rsp *rsp) + return svc; +} + +int +rpcsvc_transport_peer_check_search(dict_t *options, char *pattern, char *ip, + char *hostname) { - gf_prog_detail *prev = NULL; - gf_prog_detail *trav = NULL; + int ret = -1; + char *addrtok = NULL; + char *addrstr = NULL; + char *dup_addrstr = NULL; + char *svptr = NULL; + + if ((!options) || (!ip)) + return -1; - trav = rsp->prog; - while (trav) { - prev = trav; - trav = trav->next; - GF_FREE (prev); + ret = dict_get_str(options, pattern, &addrstr); + if (ret < 0) { + ret = -1; + goto err; + } + + if (!addrstr) { + ret = -1; + goto err; + } + + dup_addrstr = gf_strdup(addrstr); + if (dup_addrstr == NULL) { + ret = -1; + goto err; + } + addrtok = strtok_r(dup_addrstr, ",", &svptr); + while (addrtok) { + /* CASEFOLD not present on Solaris */ +#ifdef FNM_CASEFOLD + ret = fnmatch(addrtok, ip, FNM_CASEFOLD); +#else + ret = fnmatch(addrtok, ip, 0); +#endif + if (ret == 0) + goto err; + + /* compare hostnames if applicable */ + if (hostname) { +#ifdef FNM_CASEFOLD + ret = fnmatch(addrtok, hostname, FNM_CASEFOLD); +#else + ret = fnmatch(addrtok, hostname, 0); +#endif + if (ret == 0) + goto err; + } + + /* Compare IPv4 subnetwork, TODO: IPv6 subnet support */ + if (strchr(addrtok, '/')) { + ret = rpcsvc_match_subnet_v4(addrtok, ip); + if (ret == 0) + goto err; } + + addrtok = strtok_r(NULL, ",", &svptr); + } + + ret = -1; +err: + GF_FREE(dup_addrstr); + + return ret; } static int -build_prog_details (rpcsvc_request_t *req, gf_dump_rsp *rsp) +rpcsvc_transport_peer_check_allow(dict_t *options, char *volname, char *ip, + char *hostname) { - int ret = -1; - rpcsvc_program_t *program = NULL; - gf_prog_detail *prog = NULL; - gf_prog_detail *prev = NULL; + int ret = RPCSVC_AUTH_DONTCARE; + char *srchstr = NULL; - if (!req || !req->trans || !req->svc) - goto out; + if ((!options) || (!ip) || (!volname)) + return ret; - list_for_each_entry (program, &req->svc->programs, program) { - prog = GF_CALLOC (1, sizeof (*prog), 0); - if (!prog) - goto out; - prog->progname = program->progname; - prog->prognum = program->prognum; - prog->progver = program->progver; - if (!rsp->prog) - rsp->prog = prog; - if (prev) - prev->next = prog; - prev = prog; - } - if (prev) - ret = 0; + ret = gf_asprintf(&srchstr, "rpc-auth.addr.%s.allow", volname); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); + ret = RPCSVC_AUTH_DONTCARE; + goto out; + } + + ret = rpcsvc_transport_peer_check_search(options, srchstr, ip, hostname); + GF_FREE(srchstr); + + if (ret == 0) + ret = RPCSVC_AUTH_ACCEPT; + else + ret = RPCSVC_AUTH_REJECT; out: - return ret; + return ret; } static int -rpcsvc_dump (rpcsvc_request_t *req) +rpcsvc_transport_peer_check_reject(dict_t *options, char *volname, char *ip, + char *hostname) { - char rsp_buf[8 * 1024] = {0,}; - gf_dump_rsp rsp = {0,}; - struct iovec iov = {0,}; - int op_errno = EINVAL; - int ret = -1; + int ret = RPCSVC_AUTH_DONTCARE; + char *srchstr = NULL; + + if ((!options) || (!ip) || (!volname)) + return ret; - if (!req) - goto fail; + ret = gf_asprintf(&srchstr, "rpc-auth.addr.%s.reject", volname); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); + ret = RPCSVC_AUTH_REJECT; + goto out; + } - ret = build_prog_details (req, &rsp); - if (ret < 0) { - op_errno = -ret; - goto fail; - } + ret = rpcsvc_transport_peer_check_search(options, srchstr, ip, hostname); + GF_FREE(srchstr); -fail: - rsp.op_errno = gf_errno_to_error (op_errno); - rsp.op_ret = ret; + if (ret == 0) + ret = RPCSVC_AUTH_REJECT; + else + ret = RPCSVC_AUTH_DONTCARE; +out: + return ret; +} - iov.iov_base = rsp_buf; - iov.iov_len = (8 * 1024); +/* Combines rpc auth's allow and reject options. + * Order of checks is important. + * First, REJECT if either rejects. + * If neither rejects, ACCEPT if either accepts. + * If neither accepts, DONTCARE + */ +int +rpcsvc_combine_allow_reject_volume_check(int allow, int reject) +{ + if (allow == RPCSVC_AUTH_REJECT || reject == RPCSVC_AUTH_REJECT) + return RPCSVC_AUTH_REJECT; - ret = xdr_serialize_dump_rsp (iov, &rsp); - if (ret < 0) { - if (req) - req->rpc_err = GARBAGE_ARGS; - op_errno = EINVAL; - goto fail; - } + if (allow == RPCSVC_AUTH_ACCEPT || reject == RPCSVC_AUTH_ACCEPT) + return RPCSVC_AUTH_ACCEPT; - ret = rpcsvc_submit_generic (req, &iov, 1, NULL, 0, - NULL); + return RPCSVC_AUTH_DONTCARE; +} - free_prog_details (&rsp); +int +rpcsvc_auth_check(rpcsvc_t *svc, char *volname, char *ipaddr) +{ + int ret = RPCSVC_AUTH_REJECT; + int accept = RPCSVC_AUTH_REJECT; + int reject = RPCSVC_AUTH_REJECT; + char *hostname = NULL; + char *allow_str = NULL; + char *reject_str = NULL; + char *srchstr = NULL; + dict_t *options = NULL; + + if (!svc || !volname || !ipaddr) + return ret; + /* Fetch the options from svc struct and validate */ + options = svc->options; + if (!options) return ret; + + /* Accept if its the default case: Allow all, Reject none + * The default volfile always contains a 'allow *' rule + * for each volume. If allow rule is missing (which implies + * there is some bad volfile generating code doing this), we + * assume no one is allowed mounts, and thus, we reject mounts. + */ + ret = gf_asprintf(&srchstr, "rpc-auth.addr.%s.allow", volname); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); + return RPCSVC_AUTH_REJECT; + } + + ret = dict_get_str(options, srchstr, &allow_str); + GF_FREE(srchstr); + if (ret < 0) + return RPCSVC_AUTH_REJECT; + + ret = gf_asprintf(&srchstr, "rpc-auth.addr.%s.reject", volname); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); + return RPCSVC_AUTH_REJECT; + } + + ret = dict_get_str(options, srchstr, &reject_str); + GF_FREE(srchstr); + + /* + * If "reject_str" is being set as '*' (anonymous), then NFS-server + * would reject everything. If the "reject_str" is not set and + * "allow_str" is set as '*' (anonymous), then NFS-server would + * accept mount requests from all clients. + */ + if (reject_str != NULL) { + if (!strcmp("*", reject_str)) + return RPCSVC_AUTH_REJECT; + } else { + if (!strcmp("*", allow_str)) + return RPCSVC_AUTH_ACCEPT; + } + + /* addr-namelookup check */ + if (svc->addr_namelookup == _gf_true) { + ret = gf_get_hostname_from_ip(ipaddr, &hostname); + if (ret) { + if (hostname) + GF_FREE(hostname); + /* failed to get hostname, but hostname auth + * is enabled, so authentication will not be + * 100% correct. reject mounts + */ + return RPCSVC_AUTH_REJECT; + } + } + + accept = rpcsvc_transport_peer_check_allow(options, volname, ipaddr, + hostname); + + reject = rpcsvc_transport_peer_check_reject(options, volname, ipaddr, + hostname); + + if (hostname) + GF_FREE(hostname); + return rpcsvc_combine_allow_reject_volume_check(accept, reject); } int -rpcsvc_init_options (rpcsvc_t *svc, dict_t *options) +rpcsvc_transport_privport_check(rpcsvc_t *svc, char *volname, uint16_t port) { - svc->memfactor = RPCSVC_DEFAULT_MEMFACTOR; - return 0; -} + int ret = RPCSVC_AUTH_REJECT; + char *srchstr = NULL; + char *valstr = NULL; + gf_boolean_t insecure = _gf_false; + if ((!svc) || (!volname)) + return ret; -/* The global RPC service initializer. - */ -rpcsvc_t * -rpcsvc_init (glusterfs_ctx_t *ctx, dict_t *options) + gf_log(GF_RPCSVC, GF_LOG_TRACE, "Client port: %d", (int)port); + /* If the port is already a privileged one, don't bother with checking + * options. + */ + if (port <= 1024) { + ret = RPCSVC_AUTH_ACCEPT; + goto err; + } + + /* Disabled by default */ + ret = gf_asprintf(&srchstr, "rpc-auth.ports.%s.insecure", volname); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); + ret = RPCSVC_AUTH_REJECT; + goto err; + } + + ret = dict_get_str(svc->options, srchstr, &valstr); + if (ret) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Failed to" + " read rpc-auth.ports.insecure value"); + goto err; + } + + ret = gf_string2boolean(valstr, &insecure); + if (ret) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, + "Failed to" + " convert rpc-auth.ports.insecure value"); + goto err; + } + + ret = insecure ? RPCSVC_AUTH_ACCEPT : RPCSVC_AUTH_REJECT; + + if (ret == RPCSVC_AUTH_ACCEPT) + gf_log(GF_RPCSVC, GF_LOG_DEBUG, "Unprivileged port allowed"); + else + gf_log(GF_RPCSVC, GF_LOG_DEBUG, + "Unprivileged port not" + " allowed"); + +err: + if (srchstr) + GF_FREE(srchstr); + + return ret; +} + +char * +rpcsvc_volume_allowed(dict_t *options, char *volname) { - rpcsvc_t *svc = NULL; - int ret = -1, poolcount = 0; + char globalrule[] = "rpc-auth.addr.allow"; + char *srchstr = NULL; + char *addrstr = NULL; + int ret = -1; - if ((!ctx) || (!options)) - return NULL; + if ((!options) || (!volname)) + return NULL; - svc = GF_CALLOC (1, sizeof (*svc), gf_common_mt_rpcsvc_t); - if (!svc) - return NULL; + ret = gf_asprintf(&srchstr, "rpc-auth.addr.%s.allow", volname); + if (ret == -1) { + gf_log(GF_RPCSVC, GF_LOG_ERROR, "asprintf failed"); + goto out; + } - pthread_mutex_init (&svc->rpclock, NULL); - INIT_LIST_HEAD (&svc->authschemes); - INIT_LIST_HEAD (&svc->notify); - INIT_LIST_HEAD (&svc->listeners); - INIT_LIST_HEAD (&svc->programs); + if (!dict_get(options, srchstr)) + ret = dict_get_str(options, globalrule, &addrstr); + else + ret = dict_get_str(options, srchstr, &addrstr); - ret = rpcsvc_init_options (svc, options); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to init options"); - goto free_svc; - } +out: + GF_FREE(srchstr); - poolcount = RPCSVC_POOLCOUNT_MULT * svc->memfactor; + return addrstr; +} - gf_log (GF_RPCSVC, GF_LOG_TRACE, "rx pool: %d", poolcount); - svc->rxpool = mem_pool_new (rpcsvc_request_t, poolcount); - /* TODO: leak */ - if (!svc->rxpool) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "mem pool allocation failed"); - goto free_svc; - } +/* + * rpcsvc_match_subnet_v4() takes subnetwork address pattern and checks + * if the target IPv4 address has the same network address with the help + * of network mask. + * + * Returns 0 for SUCCESS and -1 otherwise. + * + * NB: Validation of subnetwork address pattern is not required + * as it's already being done at the time of CLI SET. + */ +static int +rpcsvc_match_subnet_v4(const char *addrtok, const char *ipaddr) +{ + char *slash = NULL; + char *netaddr = NULL; + int ret = -1; + uint32_t prefixlen = 0; + uint32_t shift = 0; + struct sockaddr_in sin1 = { + 0, + }; + struct sockaddr_in sin2 = { + 0, + }; + struct sockaddr_in mask = { + 0, + }; + + /* Copy the input */ + netaddr = gf_strdup(addrtok); + if (netaddr == NULL) /* ENOMEM */ + goto out; + + /* Find the network socket addr of target */ + if (inet_pton(AF_INET, ipaddr, &sin1.sin_addr) == 0) + goto out; + + slash = strchr(netaddr, '/'); + if (slash) { + *slash = '\0'; + /* + * Find the IPv4 network mask in network byte order. + * IMP: String slash+1 is already validated, it can't have value + * more than IPv4_ADDR_SIZE (32). + */ + prefixlen = (uint32_t)atoi(slash + 1); + if (prefixlen > 31) + goto out; + } else { + /* if there is no '/', then this function wouldn't be called */ + goto out; + } + + /* Need to do this after removing '/', as inet_pton() take IP address as + * second argument. Once we get sin2, then comparison is oranges to orange + */ + if (inet_pton(AF_INET, netaddr, &sin2.sin_addr) == 0) + goto out; + + shift = IPv4_ADDR_SIZE - prefixlen; + mask.sin_addr.s_addr = htonl((uint32_t)~0 << shift); + + if (mask_match(sin1.sin_addr.s_addr, sin2.sin_addr.s_addr, + mask.sin_addr.s_addr)) { + ret = 0; /* SUCCESS */ + } +out: + GF_FREE(netaddr); + return ret; +} - ret = rpcsvc_auth_init (svc, options); - if (ret == -1) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to init " - "authentication"); - goto free_svc; - } +void +rpcsvc_program_dump(rpcsvc_program_t *prog) +{ + char key_prefix[GF_DUMP_MAX_BUF_LEN]; + char key[GF_DUMP_MAX_BUF_LEN]; + int i; - ret = -1; - svc->options = options; - svc->ctx = ctx; - gf_log (GF_RPCSVC, GF_LOG_DEBUG, "RPC service inited."); + snprintf(key_prefix, GF_DUMP_MAX_BUF_LEN, "%s", prog->progname); + gf_proc_dump_add_section("%s", key_prefix); - gluster_dump_prog.options = options; + gf_proc_dump_build_key(key, key_prefix, "program-number"); + gf_proc_dump_write(key, "%d", prog->prognum); - ret = rpcsvc_program_register (svc, &gluster_dump_prog); - if (ret) { - gf_log (GF_RPCSVC, GF_LOG_ERROR, - "failed to register DUMP program"); - goto free_svc; - } - ret = 0; -free_svc: - if (ret == -1) { - GF_FREE (svc); - svc = NULL; - } + gf_proc_dump_build_key(key, key_prefix, "program-version"); + gf_proc_dump_write(key, "%d", prog->progver); + + strncat(key_prefix, ".latency", + sizeof(key_prefix) - strlen(key_prefix) - 1); - return svc; + for (i = 0; i < prog->numactors; i++) { + gf_proc_dump_build_key(key, key_prefix, "%s", prog->actors[i].procname); + gf_latency_statedump_and_reset(key, &prog->latencies[i]); + } } +void +rpcsvc_statedump(rpcsvc_t *svc) +{ + rpcsvc_program_t *prog = NULL; + int ret = 0; + ret = pthread_rwlock_tryrdlock(&svc->rpclock); + if (ret) + return; + { + list_for_each_entry(prog, &svc->programs, program) + { + rpcsvc_program_dump(prog); + } + } + pthread_rwlock_unlock(&svc->rpclock); +} -rpcsvc_actor_t gluster_dump_actors[] = { - [GF_DUMP_NULL] = {"NULL", GF_DUMP_NULL, NULL, NULL, NULL }, - [GF_DUMP_DUMP] = {"DUMP", GF_DUMP_DUMP, rpcsvc_dump, NULL, NULL }, - [GF_DUMP_MAXVALUE] = {"MAXVALUE", GF_DUMP_MAXVALUE, NULL, NULL, NULL }, +static rpcsvc_actor_t gluster_dump_actors[GF_DUMP_MAXVALUE] = { + [GF_DUMP_NULL] = {"NULL", NULL, NULL, GF_DUMP_NULL, DRC_NA, 0}, + [GF_DUMP_DUMP] = {"DUMP", rpcsvc_dump, NULL, GF_DUMP_DUMP, DRC_NA, 0}, + [GF_DUMP_PING] = {"PING", rpcsvc_ping, NULL, GF_DUMP_PING, DRC_NA, 0}, }; - -struct rpcsvc_program gluster_dump_prog = { - .progname = "GF-DUMP", - .prognum = GLUSTER_DUMP_PROGRAM, - .progver = GLUSTER_DUMP_VERSION, - .actors = gluster_dump_actors, - .numactors = 2, +static struct rpcsvc_program gluster_dump_prog = { + .progname = "GF-DUMP", + .prognum = GLUSTER_DUMP_PROGRAM, + .progver = GLUSTER_DUMP_VERSION, + .actors = gluster_dump_actors, + .numactors = GF_DUMP_MAXVALUE, }; diff --git a/rpc/rpc-lib/src/rpcsvc.h b/rpc/rpc-lib/src/rpcsvc.h index fca7d047a7b..7b3030926c8 100644 --- a/rpc/rpc-lib/src/rpcsvc.h +++ b/rpc/rpc-lib/src/rpcsvc.h @@ -1,65 +1,67 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ #ifndef _RPCSVC_H #define _RPCSVC_H -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - -#include "event.h" +#include <glusterfs/gf-event.h> #include "rpc-transport.h" -#include "logging.h" -#include "dict.h" -#include "mem-pool.h" -#include "list.h" -#include "iobuf.h" +#include <glusterfs/dict.h> #include "xdr-rpc.h" -#include "glusterfs.h" #include "rpcsvc-common.h" #include <pthread.h> #include <sys/uio.h> #include <inttypes.h> #include <rpc/rpc_msg.h> -#include "compat.h" +#include <glusterfs/compat.h> +#include <glusterfs/client_t.h> -#ifndef NGRPS -#define NGRPS 16 -#endif /* !NGRPS */ +#ifndef MAX_IOVEC +#define MAX_IOVEC 16 +#endif -#define GF_RPCSVC "rpc-service" +/* TODO: we should store prognums at a centralized location to avoid conflict + or use a robust random number generator to avoid conflicts +*/ + +#define RPCSVC_INFRA_PROGRAM 7712846 /* random number */ + +typedef enum { + RPCSVC_PROC_EVENT_THREAD_DEATH = 0, +} rpcsvc_infra_procnum_t; + +#define RPCSVC_DEFAULT_OUTSTANDING_RPC_LIMIT \ + 64 /* Default for protocol/server */ +#define RPCSVC_DEF_NFS_OUTSTANDING_RPC_LIMIT 16 /* Default for nfs/server */ +#define RPCSVC_MAX_OUTSTANDING_RPC_LIMIT 65536 +#define RPCSVC_MIN_OUTSTANDING_RPC_LIMIT 0 /* No limit i.e. Unlimited */ + +#define GF_RPCSVC "rpc-service" #define RPCSVC_THREAD_STACK_SIZE ((size_t)(1024 * GF_UNIT_KB)) -#define RPCSVC_FRAGHDR_SIZE 4 /* 4-byte RPC fragment header size */ -#define RPCSVC_DEFAULT_LISTEN_PORT 6996 -#define RPCSVC_DEFAULT_MEMFACTOR 15 -#define RPCSVC_EVENTPOOL_SIZE_MULT 1024 -#define RPCSVC_POOLCOUNT_MULT 35 -#define RPCSVC_CONN_READ (128 * GF_UNIT_KB) -#define RPCSVC_PAGE_SIZE (128 * GF_UNIT_KB) +#define RPCSVC_FRAGHDR_SIZE 4 /* 4-byte RPC fragment header size */ +#define RPCSVC_DEFAULT_LISTEN_PORT GF_DEFAULT_BASE_PORT +#define RPCSVC_DEFAULT_MEMFACTOR 8 +#define RPCSVC_EVENTPOOL_SIZE_MULT 1024 +#define RPCSVC_POOLCOUNT_MULT 64 +#define RPCSVC_CONN_READ (128 * GF_UNIT_KB) +#define RPCSVC_PAGE_SIZE (128 * GF_UNIT_KB) +#define RPC_ROOT_UID 0 +#define RPC_ROOT_GID 0 +#define RPC_NOBODY_UID 65534 +#define RPC_NOBODY_GID 65534 /* RPC Record States */ -#define RPCSVC_READ_FRAGHDR 1 -#define RPCSVC_READ_FRAG 2 +#define RPCSVC_READ_FRAGHDR 1 +#define RPCSVC_READ_FRAG 2 /* The size in bytes, if crossed by a fragment will be handed over to the * vectored actor so that it can allocate its buffers the way it wants. * In our RPC layer, we assume that vectored RPC requests/records are never @@ -67,21 +69,28 @@ * whether the record should be handled in RPC layer completely or handed to * the vectored handler. */ -#define RPCSVC_VECTORED_FRAGSZ 4096 -#define RPCSVC_VECTOR_READCRED 1003 -#define RPCSVC_VECTOR_READVERFSZ 1004 -#define RPCSVC_VECTOR_READVERF 1005 -#define RPCSVC_VECTOR_IGNORE 1006 -#define RPCSVC_VECTOR_READVEC 1007 -#define RPCSVC_VECTOR_READPROCHDR 1008 - -#define rpcsvc_record_vectored_baremsg(rs) (((rs)->state == RPCSVC_READ_FRAG) && (rs)->vecstate == 0) -#define rpcsvc_record_vectored_cred(rs) ((rs)->vecstate == RPCSVC_VECTOR_READCRED) -#define rpcsvc_record_vectored_verfsz(rs) ((rs)->vecstate == RPCSVC_VECTOR_READVERFSZ) -#define rpcsvc_record_vectored_verfread(rs) ((rs)->vecstate == RPCSVC_VECTOR_READVERF) -#define rpcsvc_record_vectored_ignore(rs) ((rs)->vecstate == RPCSVC_VECTOR_IGNORE) -#define rpcsvc_record_vectored_readvec(rs) ((rs)->vecstate == RPCSVC_VECTOR_READVEC) -#define rpcsvc_record_vectored_readprochdr(rs) ((rs)->vecstate == RPCSVC_VECTOR_READPROCHDR) +#define RPCSVC_VECTORED_FRAGSZ 4096 +#define RPCSVC_VECTOR_READCRED 1003 +#define RPCSVC_VECTOR_READVERFSZ 1004 +#define RPCSVC_VECTOR_READVERF 1005 +#define RPCSVC_VECTOR_IGNORE 1006 +#define RPCSVC_VECTOR_READVEC 1007 +#define RPCSVC_VECTOR_READPROCHDR 1008 + +#define rpcsvc_record_vectored_baremsg(rs) \ + (((rs)->state == RPCSVC_READ_FRAG) && (rs)->vecstate == 0) +#define rpcsvc_record_vectored_cred(rs) \ + ((rs)->vecstate == RPCSVC_VECTOR_READCRED) +#define rpcsvc_record_vectored_verfsz(rs) \ + ((rs)->vecstate == RPCSVC_VECTOR_READVERFSZ) +#define rpcsvc_record_vectored_verfread(rs) \ + ((rs)->vecstate == RPCSVC_VECTOR_READVERF) +#define rpcsvc_record_vectored_ignore(rs) \ + ((rs)->vecstate == RPCSVC_VECTOR_IGNORE) +#define rpcsvc_record_vectored_readvec(rs) \ + ((rs)->vecstate == RPCSVC_VECTOR_READVEC) +#define rpcsvc_record_vectored_readprochdr(rs) \ + ((rs)->vecstate == RPCSVC_VECTOR_READPROCHDR) #define rpcsvc_record_vectored(rs) ((rs)->fragsize > RPCSVC_VECTORED_FRAGSZ) /* Includes bytes up to and including the credential length field. The credlen * will be followed by @credlen bytes of credential data which will have to be @@ -89,182 +98,232 @@ * verifier which will also have to be read separately including the 8 bytes of * verf flavour and verflen. */ -#define RPCSVC_BARERPC_MSGSZ 32 -#define rpcsvc_record_readfraghdr(rs) ((rs)->state == RPCSVC_READ_FRAGHDR) -#define rpcsvc_record_readfrag(rs) ((rs)->state == RPCSVC_READ_FRAG) +#define RPCSVC_BARERPC_MSGSZ 32 +#define rpcsvc_record_readfraghdr(rs) ((rs)->state == RPCSVC_READ_FRAGHDR) +#define rpcsvc_record_readfrag(rs) ((rs)->state == RPCSVC_READ_FRAG) -#define RPCSVC_LOWVERS 2 +#define RPCSVC_LOWVERS 2 #define RPCSVC_HIGHVERS 2 - #if 0 #error "defined in /usr/include/rpc/auth.h" -#define AUTH_NONE 0 /* no authentication */ -#define AUTH_NULL 0 /* backward compatibility */ -#define AUTH_SYS 1 /* unix style (uid, gids) */ -#define AUTH_UNIX AUTH_SYS -#define AUTH_SHORT 2 /* short hand unix style */ -#define AUTH_DES 3 /* des style (encrypted timestamps) */ -#define AUTH_DH AUTH_DES /* Diffie-Hellman (this is DES) */ -#define AUTH_KERB 4 /* kerberos style */ -#endif /* */ - -#define AUTH_GLUSTERFS 5 +#define AUTH_NONE 0 /* no authentication */ +#define AUTH_NULL 0 /* backward compatibility */ +#define AUTH_SYS 1 /* unix style (uid, gids) */ +#define AUTH_UNIX AUTH_SYS +#define AUTH_SHORT 2 /* short hand unix style */ +#define AUTH_DES 3 /* des style (encrypted timestamps) */ +#define AUTH_DH AUTH_DES /* Diffie-Hellman (this is DES) */ +#define AUTH_KERB 4 /* kerberos style */ +#endif /* */ typedef struct rpcsvc_program rpcsvc_program_t; struct rpcsvc_notify_wrapper { - struct list_head list; - void *data; - rpcsvc_notify_t notify; + struct list_head list; + void *data; + rpcsvc_notify_t notify; }; typedef struct rpcsvc_notify_wrapper rpcsvc_notify_wrapper_t; - typedef struct rpcsvc_request rpcsvc_request_t; typedef struct { - rpc_transport_t *trans; - rpcsvc_t *svc; - /* FIXME: remove address from this structure. Instead use get_myaddr - * interface implemented by individual transports. - */ - struct sockaddr_storage sa; - struct list_head list; + rpc_transport_t *trans; + rpcsvc_t *svc; + /* FIXME: remove address from this structure. Instead use get_myaddr + * interface implemented by individual transports. + */ + struct sockaddr_storage sa; + struct list_head list; } rpcsvc_listener_t; struct rpcsvc_config { - int max_block_size; + int max_block_size; }; -#define RPCSVC_MAX_AUTH_BYTES 400 -typedef struct rpcsvc_auth_data { - int flavour; - int datalen; - char authdata[RPCSVC_MAX_AUTH_BYTES]; -} rpcsvc_auth_data_t; +#define rpcsvc_auth_flavour(au) ((au).flavour) -#define rpcsvc_auth_flavour(au) ((au).flavour) +typedef struct drc_client drc_client_t; +typedef struct drc_cached_op drc_cached_op_t; /* The container for the RPC call handed up to an actor. * Dynamically allocated. Lives till the call reply is completely * transmitted. * */ struct rpcsvc_request { - /* connection over which this request came. */ - rpc_transport_t *trans; - - rpcsvc_t *svc; - - rpcsvc_program_t *prog; - - /* The identifier for the call from client. - * Needed to pair the reply with the call. - */ - uint32_t xid; - - int prognum; - - int progver; - - int procnum; - - int type; - - /* Uid and gid filled by the rpc-auth module during the authentication - * phase. - */ - uid_t uid; - gid_t gid; - pid_t pid; + /* connection over which this request came. */ + rpc_transport_t *trans; - uint64_t lk_owner; - uint64_t gfs_id; + rpcsvc_t *svc; + + rpcsvc_program_t *prog; - /* Might want to move this to AUTH_UNIX specifix state since this array - * is not available for every authenticatino scheme. - */ - gid_t auxgids[NGRPS]; - int auxgidcount; + int prognum; + + int progver; - - /* The RPC message payload, contains the data required - * by the program actors. This is the buffer that will need to - * be de-xdred by the actor. - */ - struct iovec msg[2]; - int count; - - struct iobref *iobref; - - /* Status of the RPC call, whether it was accepted or denied. */ - int rpc_status; - - /* In case, the call was denied, the RPC error is stored here - * till the reply is sent. - */ - int rpc_err; - - /* In case the failure happened because of an authentication problem - * , this value needs to be assigned the correct auth error number. - */ - int auth_err; - - /* There can be cases of RPC requests where the reply needs to - * be built from multiple sources. For eg. where even the NFS reply can - * contain a payload, as in the NFSv3 read reply. Here the RPC header - * ,NFS header and the read data are brought together separately from - * different buffers, so we need to stage the buffers temporarily here - * before all of them get added to the connection's transmission list. - */ - struct list_head txlist; - - /* While the reply record is being built, this variable keeps track - * of how many bytes have been added to the record. - */ - size_t payloadsize; - - /* The credentials extracted from the rpc request */ - rpcsvc_auth_data_t cred; - - /* The verified extracted from the rpc request. In request side - * processing this contains the verifier sent by the client, on reply - * side processing, it is filled with the verified that will be - * sent to the client. - */ - rpcsvc_auth_data_t verf; - - /* Container for a RPC program wanting to store a temp - * request-specific item. - */ - void *private; - - /* Container for transport to store request-specific item */ - void *trans_private; + int procnum; + + int type; + + /* Uid and gid filled by the rpc-auth module during the authentication + * phase. + */ + uid_t uid; + gid_t gid; + pid_t pid; + + gf_lkowner_t lk_owner; + uint64_t gfs_id; + + /* Might want to move this to AUTH_UNIX specific state since this array + * is not available for every authentication scheme. + */ + gid_t *auxgids; + gid_t auxgidsmall[SMALL_GROUP_COUNT]; + gid_t *auxgidlarge; + int auxgidcount; + + /* The RPC message payload, contains the data required + * by the program actors. This is the buffer that will need to + * be de-xdred by the actor. + */ + int count; + struct iovec msg[MAX_IOVEC]; + + struct iobref *iobref; + + /* There can be cases of RPC requests where the reply needs to + * be built from multiple sources. E.g. where even the NFS reply + * can contain a payload, as in the NFSv3 read reply. Here the RPC header + * ,NFS header and the read data are brought together separately from + * different buffers, so we need to stage the buffers temporarily here + * before all of them get added to the connection's transmission list. + */ + struct list_head txlist; + + /* While the reply record is being built, this variable keeps track + * of how many bytes have been added to the record. + */ + size_t payloadsize; + + /* The credentials extracted from the rpc request */ + client_auth_data_t cred; + + /* The verified extracted from the rpc request. In request side + * processing this contains the verifier sent by the client, on reply + * side processing, it is filled with the verified that will be + * sent to the client. + */ + client_auth_data_t verf; + /* Container for a RPC program wanting to store a temp + * request-specific item. + */ + void *private; + + /* Container for transport to store request-specific item */ + void *trans_private; + + /* pointer to cached reply for use in DRC */ + drc_cached_op_t *reply; + + /* request queue in rpcsvc */ + struct list_head request_list; + + /* Status of the RPC call, whether it was accepted or denied. */ + int rpc_status; + + /* In case, the call was denied, the RPC error is stored here + * till the reply is sent. + */ + int rpc_err; + + /* In case the failure happened because of an authentication problem + * , this value needs to be assigned the correct auth error number. + */ + int auth_err; + + /* Things passed to rpc layer from client */ + + /* @flags: Can be used for binary data passed in xdata to be + passed here instead */ + unsigned int flags; + + /* ctime: origin of time on the client side, ideally this is + the one we should consider for time */ + struct timespec ctime; + + /* The identifier for the call from client. + * Needed to pair the reply with the call. + */ + uint32_t xid; + + /* Execute this request's actor function in ownthread of program?*/ + gf_boolean_t ownthread; + + gf_boolean_t synctask; + struct timespec begin; /*req handling start time*/ + struct timespec end; /*req handling end time*/ }; #define rpcsvc_request_program(req) ((rpcsvc_program_t *)((req)->prog)) -#define rpcsvc_request_program_private(req) (((rpcsvc_program_t *)((req)->program))->private) -#define rpcsvc_request_accepted(req) ((req)->rpc_status == MSG_ACCEPTED) +#define rpcsvc_request_procnum(req) (((req)->procnum)) +#define rpcsvc_request_program_private(req) \ + (((rpcsvc_program_t *)((req)->prog))->private) +#define rpcsvc_request_accepted(req) ((req)->rpc_status == MSG_ACCEPTED) #define rpcsvc_request_accepted_success(req) ((req)->rpc_err == SUCCESS) -#define rpcsvc_request_uid(req) ((req)->uid) -#define rpcsvc_request_gid(req) ((req)->gid) #define rpcsvc_request_prog_minauth(req) (rpcsvc_request_program(req)->min_auth) #define rpcsvc_request_cred_flavour(req) (rpcsvc_auth_flavour(req->cred)) #define rpcsvc_request_verf_flavour(req) (rpcsvc_auth_flavour(req->verf)) - -#define rpcsvc_request_uid(req) ((req)->uid) -#define rpcsvc_request_gid(req) ((req)->gid) -#define rpcsvc_request_private(req) ((req)->private) -#define rpcsvc_request_xid(req) ((req)->xid) -#define rpcsvc_request_set_private(req,prv) (req)->private = (void *)(prv) -#define rpcsvc_request_record_ref(req) (iobuf_ref ((req)->recordiob)) -#define rpcsvc_request_record_unref(req) (iobuf_unref ((req)->recordiob)) - - -#define RPCSVC_ACTOR_SUCCESS 0 -#define RPCSVC_ACTOR_ERROR (-1) +#define rpcsvc_request_service(req) ((req)->svc) +#define rpcsvc_request_uid(req) ((req)->uid) +#define rpcsvc_request_gid(req) ((req)->gid) +#define rpcsvc_request_private(req) ((req)->private) +#define rpcsvc_request_xid(req) ((req)->xid) +#define rpcsvc_request_set_private(req, prv) (req)->private = (void *)(prv) +#define rpcsvc_request_iobref_ref(req) (iobref_ref((req)->iobref)) +#define rpcsvc_request_record_ref(req) (iobuf_ref((req)->recordiob)) +#define rpcsvc_request_record_unref(req) (iobuf_unref((req)->recordiob)) +#define rpcsvc_request_record_iob(req) ((req)->recordiob) +#define rpcsvc_request_set_vecstate(req, state) ((req)->vecstate = state) +#define rpcsvc_request_vecstate(req) ((req)->vecstate) +#define rpcsvc_request_transport(req) ((req)->trans) +#define rpcsvc_request_transport_ref(req) (rpc_transport_ref((req)->trans)) +#define RPC_AUTH_ROOT_SQUASH(req) \ + do { \ + int gidcount = 0; \ + if (req->svc->root_squash) { \ + if (req->uid == RPC_ROOT_UID) \ + req->uid = req->svc->anonuid; \ + if (req->gid == RPC_ROOT_GID) \ + req->gid = req->svc->anongid; \ + \ + for (gidcount = 0; gidcount < req->auxgidcount; ++gidcount) { \ + if (!req->auxgids[gidcount]) \ + req->auxgids[gidcount] = req->svc->anongid; \ + } \ + } \ + } while (0); + +#define RPC_AUTH_ALL_SQUASH(req) \ + do { \ + int gidcount = 0; \ + if (req->svc->all_squash) { \ + req->uid = req->svc->anonuid; \ + req->gid = req->svc->anongid; \ + \ + for (gidcount = 0; gidcount < req->auxgidcount; ++gidcount) { \ + if (!req->auxgids[gidcount]) \ + req->auxgids[gidcount] = req->svc->anongid; \ + } \ + } \ + } while (0); + +#define RPCSVC_ACTOR_SUCCESS 0 +#define RPCSVC_ACTOR_ERROR (-1) +#define RPCSVC_ACTOR_IGNORE (-2) /* Functor for every type of protocol actor * must be defined like this. @@ -278,116 +337,146 @@ struct rpcsvc_request { * should return RPCSVC_ACTOR_ERROR. * */ -typedef int (*rpcsvc_actor) (rpcsvc_request_t *req); -typedef int (*rpcsvc_vector_actor) (rpcsvc_request_t *req, struct iovec *vec, - int count, struct iobref *iobref); -typedef int (*rpcsvc_vector_sizer) (rpcsvc_request_t *req, ssize_t *readsize, - int *newiob); +typedef int (*rpcsvc_actor)(rpcsvc_request_t *req); +typedef int (*rpcsvc_vector_sizer)(int state, ssize_t *readsize, + char *base_addr, char *curr_addr); /* Every protocol actor will also need to specify the function the RPC layer * will use to serialize or encode the message into XDR format just before * transmitting on the connection. */ -typedef void *(*rpcsvc_encode_reply) (void *msg); +typedef void *(*rpcsvc_encode_reply)(void *msg); /* Once the reply has been transmitted, the message will have to be de-allocated * , so every actor will need to provide a function that deallocates the message * it had allocated as a response. */ -typedef void (*rpcsvc_deallocate_reply) (void *msg); - +typedef void (*rpcsvc_deallocate_reply)(void *msg); -#define RPCSVC_NAME_MAX 32 +#define RPCSVC_NAME_MAX 32 /* The descriptor for each procedure/actor that runs * over the RPC service. */ typedef struct rpcsvc_actor_desc { - char procname[RPCSVC_NAME_MAX]; - int procnum; - rpcsvc_actor actor; - - /* Handler for cases where the RPC requests fragments are large enough - * to benefit from being decoded into aligned memory addresses. While - * decoding the request in a non-vectored manner, due to the nature of - * the XDR scheme, RPC cannot guarantee memory aligned addresses for - * the resulting message-specific structures. Allowing a specialized - * handler for letting the RPC program read the data from the network - * directly into its alligned buffers. - */ - rpcsvc_vector_actor vector_actor; - rpcsvc_vector_sizer vector_sizer; - + char procname[RPCSVC_NAME_MAX]; + rpcsvc_actor actor; + + /* Handler for cases where the RPC requests fragments are large enough + * to benefit from being decoded into aligned memory addresses. While + * decoding the request in a non-vectored manner, due to the nature of + * the XDR scheme, RPC cannot guarantee memory aligned addresses for + * the resulting message-specific structures. Allowing a specialized + * handler for letting the RPC program read the data from the network + * directly into its aligned buffers. + */ + rpcsvc_vector_sizer vector_sizer; + + int procnum; + + /* Can actor be ran on behalf an unprivileged requestor? */ + drc_op_type_t op_type; + gf_boolean_t unprivileged; } rpcsvc_actor_t; +typedef struct rpcsvc_request_queue { + struct list_head request_queue; + pthread_mutex_t queue_lock; + pthread_cond_t queue_cond; + pthread_t thread; + struct rpcsvc_program *program; + int gen; + gf_boolean_t waiting; +} rpcsvc_request_queue_t; + /* Describes a program and its version along with the function pointers * required to handle the procedures/actors of each program/version. * Never changed ever by any thread so no need for a lock. */ struct rpcsvc_program { - char progname[RPCSVC_NAME_MAX]; - int prognum; - int progver; - /* FIXME */ - dict_t *options; /* An opaque dictionary - * populated by the program - * (probably from xl->options) - * which contain enough - * information for transport to - * initialize. As a part of - * cleanup, the members of - * options which are of interest - * to transport should be put - * into a structure for better - * readability and structure - * should replace options member - * here. - */ - uint16_t progport; /* Registered with portmap */ + char progname[RPCSVC_NAME_MAX]; + int prognum; + int progver; + /* FIXME */ + dict_t *options; /* An opaque dictionary + * populated by the program + * (probably from xl->options) + * which contain enough + * information for transport to + * initialize. As a part of + * cleanup, the members of + * options which are of interest + * to transport should be put + * into a structure for better + * readability and structure + * should replace options member + * here. + */ #if 0 int progaddrfamily; /* AF_INET or AF_INET6 */ char *proghost; /* Bind host, can be NULL */ #endif - rpcsvc_actor_t *actors; /* All procedure handlers */ - int numactors; /* Num actors in actor array */ - int proghighvers; /* Highest ver for program - supported by the system. */ - int proglowvers; /* Lowest ver */ - - /* Program specific state handed to actors */ - void *private; - - - /* This upcall is provided by the program during registration. - * It is used to notify the program about events like connection being - * destroyed etc. The rpc program may take appropriate actions, for eg., - * in the case of connection being destroyed, it should cleanup its - * state stored in the connection. - */ - rpcsvc_notify_t notify; - - /* An integer that identifies the min auth strength that is required - * by this protocol, for eg. MOUNT3 needs AUTH_UNIX at least. - * See RFC 1813, Section 5.2.1. - */ - int min_auth; - - /* list member to link to list of registered services with rpcsvc */ - struct list_head program; + rpcsvc_actor_t *actors; /* All procedure handlers */ + int numactors; /* Num actors in actor array */ + int proghighvers; /* Highest ver for program + supported by the system. */ + /* Program specific state handed to actors */ + void *private; + gf_latency_t *latencies; /*Tracks latency statistics for the rpc call*/ + + /* This upcall is provided by the program during registration. + * It is used to notify the program about events like connection being + * destroyed etc. The rpc program may take appropriate actions, for eg., + * in the case of connection being destroyed, it should cleanup its + * state stored in the connection. + */ + rpcsvc_notify_t notify; + + int proglowvers; /* Lowest ver */ + + /* An integer that identifies the min auth strength that is required + * by this protocol, for eg. MOUNT3 needs AUTH_UNIX at least. + * See RFC 1813, Section 5.2.1. + */ + int min_auth; + + /* list member to link to list of registered services with rpcsvc */ + struct list_head program; + rpcsvc_request_queue_t request_queue[EVENT_MAX_THREADS]; + pthread_mutex_t thr_lock; + pthread_cond_t thr_cond; + int threadcount; + int thr_queue; + pthread_key_t req_queue_key; + + /* eventthreadcount is just a readonly copy of the actual value + * owned by the event sub-system + * It is used to control the scaling of rpcsvc_request_handler threads + */ + int eventthreadcount; + uint16_t progport; /* Registered with portmap */ + /* Execute actor function in program's own thread? This will reduce */ + /* the workload on poller threads */ + gf_boolean_t ownthread; + gf_boolean_t alive; + + gf_boolean_t synctask; + unsigned long request_queue_status[EVENT_MAX_THREADS / __BITS_PER_LONG]; }; typedef struct rpcsvc_cbk_program { - char *progname; - int prognum; - int progver; + char *progname; + int prognum; + int progver; } rpcsvc_cbk_program_t; /* All users of RPC services should use this API to register their * procedure handlers. */ extern int -rpcsvc_program_register (rpcsvc_t *svc, rpcsvc_program_t *program); +rpcsvc_program_register(rpcsvc_t *svc, rpcsvc_program_t *program, + gf_boolean_t add_to_head); extern int -rpcsvc_program_unregister (rpcsvc_t *svc, rpcsvc_program_t *program); +rpcsvc_program_unregister(rpcsvc_t *svc, rpcsvc_program_t *program); /* This will create and add a listener to listener pool. Programs can * use any of the listener in this pool. A single listener can be used by @@ -398,123 +487,150 @@ rpcsvc_program_unregister (rpcsvc_t *svc, rpcsvc_program_t *program); */ /* FIXME: can multiple programs registered on same port? */ extern int32_t -rpcsvc_create_listeners (rpcsvc_t *svc, dict_t *options, char *name); +rpcsvc_create_listeners(rpcsvc_t *svc, dict_t *options, char *name); void -rpcsvc_listener_destroy (rpcsvc_listener_t *listener); +rpcsvc_listener_destroy(rpcsvc_listener_t *listener); extern int -rpcsvc_program_register_portmap (rpcsvc_program_t *newprog, uint32_t port); +rpcsvc_program_register_portmap(rpcsvc_program_t *newprog, uint32_t port); + +#ifdef IPV6_DEFAULT +extern int +rpcsvc_program_register_rpcbind6(rpcsvc_program_t *newprog, uint32_t port); +extern int +rpcsvc_program_unregister_rpcbind6(rpcsvc_program_t *newprog); +#endif + +extern int +rpcsvc_program_unregister_portmap(rpcsvc_program_t *newprog); + +extern int +rpcsvc_register_portmap_enabled(rpcsvc_t *svc); /* Inits the global RPC service data structures. * Called in main. */ extern rpcsvc_t * -rpcsvc_init (glusterfs_ctx_t *ctx, dict_t *options); +rpcsvc_init(xlator_t *xl, glusterfs_ctx_t *ctx, dict_t *options, + uint32_t poolcount); + +extern int +rpcsvc_reconfigure_options(rpcsvc_t *svc, dict_t *options); int -rpcsvc_register_notify (rpcsvc_t *svc, rpcsvc_notify_t notify, void *mydata); +rpcsvc_register_notify(rpcsvc_t *svc, rpcsvc_notify_t notify, void *mydata); /* unregister a notification callback @notify with data @mydata from svc. * returns the number of notification callbacks unregistered. */ int -rpcsvc_unregister_notify (rpcsvc_t *svc, rpcsvc_notify_t notify, void *mydata); +rpcsvc_unregister_notify(rpcsvc_t *svc, rpcsvc_notify_t notify, void *mydata); int -rpcsvc_submit_message (rpcsvc_request_t *req, struct iovec *proghdr, - int hdrcount, struct iovec *payload, int payloadcount, - struct iobref *iobref); +rpcsvc_transport_submit(rpc_transport_t *trans, struct iovec *rpchdr, + int rpchdrcount, struct iovec *proghdr, + int proghdrcount, struct iovec *progpayload, + int progpayloadcount, struct iobref *iobref, + void *priv); int -rpcsvc_submit_generic (rpcsvc_request_t *req, struct iovec *proghdr, - int hdrcount, struct iovec *payload, int payloadcount, - struct iobref *iobref); +rpcsvc_submit_message(rpcsvc_request_t *req, struct iovec *proghdr, + int hdrcount, struct iovec *payload, int payloadcount, + struct iobref *iobref); + +int +rpcsvc_submit_generic(rpcsvc_request_t *req, struct iovec *proghdr, + int hdrcount, struct iovec *payload, int payloadcount, + struct iobref *iobref); extern int -rpcsvc_error_reply (rpcsvc_request_t *req); +rpcsvc_error_reply(rpcsvc_request_t *req); -#define RPCSVC_PEER_STRLEN 1024 -#define RPCSVC_AUTH_ACCEPT 1 -#define RPCSVC_AUTH_REJECT 2 -#define RPCSVC_AUTH_DONTCARE 3 +#define RPCSVC_PEER_STRLEN 1024 +#define RPCSVC_AUTH_ACCEPT 1 +#define RPCSVC_AUTH_REJECT 2 +#define RPCSVC_AUTH_DONTCARE 3 extern int -rpcsvc_transport_peername (rpc_transport_t *trans, char *hostname, int hostlen); +rpcsvc_transport_peername(rpc_transport_t *trans, char *hostname, int hostlen); -extern inline int -rpcsvc_transport_peeraddr (rpc_transport_t *trans, char *addrstr, int addrlen, - struct sockaddr_storage *returnsa, socklen_t sasize); +extern int +rpcsvc_transport_peeraddr(rpc_transport_t *trans, char *addrstr, int addrlen, + struct sockaddr_storage *returnsa, socklen_t sasize); extern int -rpcsvc_transport_peer_check (dict_t *options, char *volname, - rpc_transport_t *trans); +rpcsvc_auth_check(rpcsvc_t *svc, char *volname, char *ipaddr); extern int -rpcsvc_transport_privport_check (rpcsvc_t *svc, char *volname, - rpc_transport_t *trans); -#define rpcsvc_request_seterr(req, err) (req)->rpc_err = err -#define rpcsvc_request_set_autherr(req, err) (req)->auth_err = err +rpcsvc_transport_privport_check(rpcsvc_t *svc, char *volname, uint16_t port); -extern int rpcsvc_submit_vectors (rpcsvc_request_t *req); +#define rpcsvc_request_seterr(req, err) ((req)->rpc_err = (int)(err)) +#define rpcsvc_request_set_autherr(req, err) ((req)->auth_err = (int)(err)) -extern int rpcsvc_request_attach_vector (rpcsvc_request_t *req, - struct iovec msgvec, struct iobuf *iob, - struct iobref *ioref, int finalvector); +extern int +rpcsvc_submit_vectors(rpcsvc_request_t *req); +extern int +rpcsvc_request_attach_vector(rpcsvc_request_t *req, struct iovec msgvec, + struct iobuf *iob, struct iobref *ioref, + int finalvector); -typedef int (*auth_init_trans) (rpc_transport_t *trans, void *priv); -typedef int (*auth_init_request) (rpcsvc_request_t *req, void *priv); -typedef int (*auth_request_authenticate) (rpcsvc_request_t *req, void *priv); +typedef int (*auth_init_trans)(rpc_transport_t *trans, void *priv); +typedef int (*auth_init_request)(rpcsvc_request_t *req, void *priv); +typedef int (*auth_request_authenticate)(rpcsvc_request_t *req, void *priv); /* This structure needs to be registered by every authentication scheme. * Our authentication schemes are stored per connection because * each connection will end up using a different authentication scheme. */ typedef struct rpcsvc_auth_ops { - auth_init_trans transport_init; - auth_init_request request_init; - auth_request_authenticate authenticate; + auth_init_trans transport_init; + auth_init_request request_init; + auth_request_authenticate authenticate; } rpcsvc_auth_ops_t; typedef struct rpcsvc_auth_flavour_desc { - char authname[RPCSVC_NAME_MAX]; - int authnum; - rpcsvc_auth_ops_t *authops; - void *authprivate; + char authname[RPCSVC_NAME_MAX]; + rpcsvc_auth_ops_t *authops; + void *authprivate; + int authnum; } rpcsvc_auth_t; -typedef void * (*rpcsvc_auth_initer_t) (rpcsvc_t *svc, dict_t *options); +typedef void *(*rpcsvc_auth_initer_t)(rpcsvc_t *svc, dict_t *options); struct rpcsvc_auth_list { - struct list_head authlist; - rpcsvc_auth_initer_t init; - /* Should be the name with which we identify the auth scheme given - * in the volfile options. - * This should be different from the authname in rpc_auth_t - * in way that makes it easier to specify this scheme in the volfile. - * This is because the technical names of the schemes can be a bit - * arcane. - */ - char name[RPCSVC_NAME_MAX]; - rpcsvc_auth_t *auth; - int enable; + struct list_head authlist; + rpcsvc_auth_initer_t init; + /* Should be the name with which we identify the auth scheme given + * in the volfile options. + * This should be different from the authname in rpc_auth_t + * in way that makes it easier to specify this scheme in the volfile. + * This is because the technical names of the schemes can be a bit + * arcane. + */ + char name[RPCSVC_NAME_MAX]; + rpcsvc_auth_t *auth; + int enable; }; extern int -rpcsvc_auth_request_init (rpcsvc_request_t *req); +rpcsvc_auth_request_init(rpcsvc_request_t *req, struct rpc_msg *callmsg); + +extern int +rpcsvc_auth_init(rpcsvc_t *svc, dict_t *options); extern int -rpcsvc_auth_init (rpcsvc_t *svc, dict_t *options); +rpcsvc_auth_reconf(rpcsvc_t *svc, dict_t *options); extern int -rpcsvc_auth_transport_init (rpc_transport_t *xprt); +rpcsvc_auth_transport_init(rpc_transport_t *xprt); extern int -rpcsvc_authenticate (rpcsvc_request_t *req); +rpcsvc_authenticate(rpcsvc_request_t *req); extern int -rpcsvc_auth_array (rpcsvc_t *svc, char *volname, int *autharr, int arrlen); +rpcsvc_auth_array(rpcsvc_t *svc, char *volname, int *autharr, int arrlen); /* If the request has been sent using AUTH_UNIX, this function returns the * auxiliary gids as an array, otherwise, it returns NULL. @@ -522,16 +638,57 @@ rpcsvc_auth_array (rpcsvc_t *svc, char *volname, int *autharr, int arrlen); * authentication code even further to support mode auth schemes. */ extern gid_t * -rpcsvc_auth_unix_auxgids (rpcsvc_request_t *req, int *arrlen); - -extern int -rpcsvc_combine_gen_spec_volume_checks (int gen, int spec); +rpcsvc_auth_unix_auxgids(rpcsvc_request_t *req, int *arrlen); extern char * -rpcsvc_volume_allowed (dict_t *options, char *volname); +rpcsvc_volume_allowed(dict_t *options, char *volname); + +int +rpcsvc_request_submit(rpcsvc_t *rpc, rpc_transport_t *trans, + rpcsvc_cbk_program_t *prog, int procnum, void *req, + glusterfs_ctx_t *ctx, xdrproc_t xdrproc); -int rpcsvc_callback_submit (rpcsvc_t *rpc, rpc_transport_t *trans, - rpcsvc_cbk_program_t *prog, int procnum, - struct iovec *proghdr, int proghdrcount); +int +rpcsvc_callback_submit(rpcsvc_t *rpc, rpc_transport_t *trans, + rpcsvc_cbk_program_t *prog, int procnum, + struct iovec *proghdr, int proghdrcount, + struct iobref *iobref); + +rpcsvc_actor_t * +rpcsvc_program_actor(rpcsvc_request_t *req); + +int +rpcsvc_transport_unix_options_build(dict_t *options, char *filepath); +int +rpcsvc_set_allow_insecure(rpcsvc_t *svc, dict_t *options); +int +rpcsvc_set_addr_namelookup(rpcsvc_t *svc, dict_t *options); +int +rpcsvc_set_root_squash(rpcsvc_t *svc, dict_t *options); +int +rpcsvc_set_all_squash(rpcsvc_t *svc, dict_t *options); +int +rpcsvc_set_outstanding_rpc_limit(rpcsvc_t *svc, dict_t *options, int defvalue); +int +rpcsvc_set_throttle_on(rpcsvc_t *svc); + +int +rpcsvc_set_throttle_off(rpcsvc_t *svc); + +gf_boolean_t +rpcsvc_get_throttle(rpcsvc_t *svc); + +int +rpcsvc_auth_array(rpcsvc_t *svc, char *volname, int *autharr, int arrlen); +rpcsvc_vector_sizer +rpcsvc_get_program_vector_sizer(rpcsvc_t *svc, uint32_t prognum, + uint32_t progver, int procnum); +void +rpcsvc_autoscale_threads(glusterfs_ctx_t *ctx, rpcsvc_t *rpc, int incr); + +extern int +rpcsvc_destroy(rpcsvc_t *svc); +void +rpcsvc_statedump(rpcsvc_t *svc); #endif diff --git a/rpc/rpc-lib/src/xdr-common.h b/rpc/rpc-lib/src/xdr-common.h index 13ac41cee70..752736b3d4d 100644 --- a/rpc/rpc-lib/src/xdr-common.h +++ b/rpc/rpc-lib/src/xdr-common.h @@ -1,123 +1,116 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ #ifndef _XDR_COMMON_H_ #define _XDR_COMMON_H_ -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - #include <rpc/types.h> #include <sys/types.h> #include <rpc/xdr.h> +#include <rpc/auth.h> #include <sys/uio.h> -enum { - GF_DUMP_NULL, - GF_DUMP_DUMP, - GF_DUMP_MAXVALUE, -} gf_dump_procnum_t; +#ifdef __NetBSD__ +#include <dirent.h> +#endif /* __NetBSD__ */ + +enum gf_dump_procnum { + GF_DUMP_NULL, + GF_DUMP_DUMP, + GF_DUMP_PING, + GF_DUMP_MAXVALUE, +}; #define GLUSTER_DUMP_PROGRAM 123451501 /* Completely random */ #define GLUSTER_DUMP_VERSION 1 +/* MAX_AUTH_BYTES is restricted to 400 bytes, see + * http://tools.ietf.org/html/rfc5531#section-8.2 */ +#define GF_MAX_AUTH_BYTES MAX_AUTH_BYTES + +/* The size of an AUTH_GLUSTERFS_V2 structure: + * + * 1 | pid + * 1 | uid + * 1 | gid + * 1 | groups_len + * XX | groups_val (GF_MAX_AUX_GROUPS=65535) + * 1 | lk_owner_len + * YY | lk_owner_val (GF_MAX_LOCK_OWNER_LEN=1024) + * ----+------------------------------------------- + * 5 | total xdr-units + * + * one XDR-unit is defined as BYTES_PER_XDR_UNIT = 4 bytes + * MAX_AUTH_BYTES = 400 is the maximum, this is 100 xdr-units. + * XX + YY can be 95 to fill the 100 xdr-units. + * + * Note that the on-wire protocol has tighter requirements than the internal + * structures. It is possible for xlators to use more groups and a bigger + * lk_owner than that can be sent by a GlusterFS-client. + * + * ------- + * On v3, there are 4 more units, and hence it will be 9 xdr-units + */ +#define GF_AUTH_GLUSTERFS_MAX_GROUPS(lk_len, type) \ + ((type == AUTH_GLUSTERFS_v2) ? (95 - lk_len) : (91 - lk_len)) +#define GF_AUTH_GLUSTERFS_MAX_LKOWNER(groups_len, type) \ + ((type == AUTH_GLUSTERFS_v2) ? (95 - groups_len) : (91 - groups_len)) + +#ifdef GF_LINUX_HOST_OS +#define xdr_u_int32_t xdr_uint32_t +#define xdr_u_int64_t xdr_uint64_t +unsigned long +xdr_sizeof(xdrproc_t func, void *data); +#endif -#if GF_DARWIN_HOST_OS +#ifdef GF_DARWIN_HOST_OS #define xdr_u_quad_t xdr_u_int64_t -#define xdr_quad_t xdr_int64_t +#define xdr_quad_t xdr_int64_t #define xdr_uint32_t xdr_u_int32_t +#define xdr_uint64_t xdr_u_int64_t #define uint64_t u_int64_t +unsigned long +xdr_sizeof(xdrproc_t func, void *data); +#endif + +#if defined(__NetBSD__) +#define xdr_u_quad_t xdr_u_int64_t +#define xdr_quad_t xdr_int64_t +#define xdr_uint32_t xdr_u_int32_t +#define xdr_uint64_t xdr_u_int64_t #endif -#if GF_SOLARIS_HOST_OS +#ifdef GF_SOLARIS_HOST_OS #define u_quad_t uint64_t #define quad_t int64_t #define xdr_u_quad_t xdr_uint64_t -#define xdr_quad_t xdr_int64_t -#define xdr_uint32_t xdr_uint32_t +#define xdr_quad_t xdr_int64_t #endif -struct auth_glusterfs_parms { - uint64_t lk_owner; - u_int pid; - u_int uid; - u_int gid; - u_int ngrps; - u_int groups[16]; -} __attribute__((packed)); -typedef struct auth_glusterfs_parms auth_glusterfs_parms; - -struct gf_dump_req { - uint64_t gfs_id; -} __attribute__((packed)); -typedef struct gf_dump_req gf_dump_req; - -struct gf_prog_detail { - char *progname; - uint64_t prognum; - uint64_t progver; - struct gf_prog_detail *next; -} __attribute__((packed)); -typedef struct gf_prog_detail gf_prog_detail; - -struct gf_dump_rsp { - uint64_t gfs_id; - int op_ret; - int op_errno; - struct gf_prog_detail *prog; -}__attribute__((packed)); -typedef struct gf_dump_rsp gf_dump_rsp; - -extern bool_t -xdr_auth_glusterfs_parms (XDR *xdrs, auth_glusterfs_parms *objp); -extern bool_t xdr_gf_dump_req (XDR *, gf_dump_req*); -extern bool_t xdr_gf_prog_detail (XDR *, gf_prog_detail*); -extern bool_t xdr_gf_dump_rsp (XDR *, gf_dump_rsp*); - -ssize_t -xdr_serialize_dump_rsp (struct iovec outmsg, void *rsp); -ssize_t -xdr_to_dump_req (struct iovec inmsg, void *args); -ssize_t -xdr_from_dump_req (struct iovec outmsg, void *rsp); -ssize_t -xdr_to_dump_rsp (struct iovec inmsg, void *args); - -#define XDR_BYTES_PER_UNIT 4 - /* Returns the address of the byte that follows the * last byte used for decoding the previous xdr component. - * For eg, once the RPC call for NFS has been decoded, thie macro will return + * E.g. once the RPC call for NFS has been decoded, the macro will return * the address from which the NFS header starts. */ -#define xdr_decoded_remaining_addr(xdr) ((&xdr)->x_private) +#define xdr_decoded_remaining_addr(xdr) ((&xdr)->x_private) /* Returns the length of the remaining record after the previous decode * operation completed. */ -#define xdr_decoded_remaining_len(xdr) ((&xdr)->x_handy) +#define xdr_decoded_remaining_len(xdr) ((&xdr)->x_handy) /* Returns the number of bytes used by the last encode operation. */ -#define xdr_encoded_length(xdr) (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base)) +#define xdr_encoded_length(xdr) \ + (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base)) -#define xdr_decoded_length(xdr) (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base)) +#define xdr_decoded_length(xdr) \ + (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base)) #endif diff --git a/rpc/rpc-lib/src/xdr-rpc.c b/rpc/rpc-lib/src/xdr-rpc.c index 26e7fa57d85..4992dc5a7ce 100644 --- a/rpc/rpc-lib/src/xdr-rpc.c +++ b/rpc/rpc-lib/src/xdr-rpc.c @@ -1,193 +1,198 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - #include <rpc/rpc.h> -#include <rpc/pmap_clnt.h> -#include <arpa/inet.h> #include <rpc/xdr.h> #include <sys/uio.h> #include <rpc/auth_unix.h> -#include "mem-pool.h" #include "xdr-rpc.h" #include "xdr-common.h" -#include "logging.h" +#include <glusterfs/common-utils.h> /* Decodes the XDR format in msgbuf into rpc_msg. * The remaining payload is returned into payload. */ int -xdr_to_rpc_call (char *msgbuf, size_t len, struct rpc_msg *call, - struct iovec *payload, char *credbytes, char *verfbytes) +xdr_to_rpc_call(char *msgbuf, size_t len, struct rpc_msg *call, + struct iovec *payload, char *credbytes, char *verfbytes) { - XDR xdr; - char opaquebytes[MAX_AUTH_BYTES]; - struct opaque_auth *oa = NULL; - - if ((!msgbuf) || (!call)) - return -1; - - memset (call, 0, sizeof (*call)); - - oa = &call->rm_call.cb_cred; - if (!credbytes) - oa->oa_base = opaquebytes; - else - oa->oa_base = credbytes; - - oa = &call->rm_call.cb_verf; - if (!verfbytes) - oa->oa_base = opaquebytes; - else - oa->oa_base = verfbytes; - - xdrmem_create (&xdr, msgbuf, len, XDR_DECODE); - if (!xdr_callmsg (&xdr, call)) - return -1; - - if (payload) { - payload->iov_base = xdr_decoded_remaining_addr (xdr); - payload->iov_len = xdr_decoded_remaining_len (xdr); - } - - return 0; + XDR xdr; + char opaquebytes[GF_MAX_AUTH_BYTES]; + struct opaque_auth *oa = NULL; + int ret = -1; + + GF_VALIDATE_OR_GOTO("rpc", msgbuf, out); + GF_VALIDATE_OR_GOTO("rpc", call, out); + + memset(call, 0, sizeof(*call)); + + oa = &call->rm_call.cb_cred; + if (!credbytes) + oa->oa_base = opaquebytes; + else + oa->oa_base = credbytes; + + oa = &call->rm_call.cb_verf; + if (!verfbytes) + oa->oa_base = opaquebytes; + else + oa->oa_base = verfbytes; + + xdrmem_create(&xdr, msgbuf, len, XDR_DECODE); + if (!xdr_callmsg(&xdr, call)) { + gf_log("rpc", GF_LOG_WARNING, "failed to decode call msg"); + goto out; + } + + if (payload) { + payload->iov_base = xdr_decoded_remaining_addr(xdr); + payload->iov_len = xdr_decoded_remaining_len(xdr); + } + + ret = 0; +out: + return ret; } - bool_t -true_func (XDR *s, caddr_t *a) +true_func(XDR *s, caddr_t *a) { - return TRUE; + return TRUE; } - int -rpc_fill_empty_reply (struct rpc_msg *reply, uint32_t xid) +rpc_fill_empty_reply(struct rpc_msg *reply, uint32_t xid) { - if (!reply) - return -1; + int ret = -1; - /* Setting to 0 also results in reply verifier flavor to be - * set to AUTH_NULL which is what we want right now. - */ - memset (reply, 0, sizeof (*reply)); - reply->rm_xid = xid; - reply->rm_direction = REPLY; + GF_VALIDATE_OR_GOTO("rpc", reply, out); - return 0; + /* Setting to 0 also results in reply verifier flavor to be + * set to AUTH_NULL which is what we want right now. + */ + memset(reply, 0, sizeof(*reply)); + reply->rm_xid = xid; + reply->rm_direction = REPLY; + + ret = 0; +out: + return ret; } int -rpc_fill_denied_reply (struct rpc_msg *reply, int rjstat, int auth_err) +rpc_fill_denied_reply(struct rpc_msg *reply, int rjstat, int auth_err) { - if (!reply) - return -1; - - reply->rm_reply.rp_stat = MSG_DENIED; - reply->rjcted_rply.rj_stat = rjstat; - if (rjstat == RPC_MISMATCH) { - /* No problem with hardocoding - * RPC version numbers. We only support - * v2 anyway. - */ - reply->rjcted_rply.rj_vers.low = 2; - reply->rjcted_rply.rj_vers.high = 2; - } else if (rjstat == AUTH_ERROR) - reply->rjcted_rply.rj_why = auth_err; - - return 0; -} + int ret = -1; + GF_VALIDATE_OR_GOTO("rpc", reply, out); + + reply->rm_reply.rp_stat = MSG_DENIED; + reply->rjcted_rply.rj_stat = rjstat; + if (rjstat == RPC_MISMATCH) { + /* No problem with hardcoding + * RPC version numbers. We only support + * v2 anyway. + */ + reply->rjcted_rply.rj_vers.low = 2; + reply->rjcted_rply.rj_vers.high = 2; + } else if (rjstat == AUTH_ERROR) + reply->rjcted_rply.rj_why = auth_err; + + ret = 0; +out: + return ret; +} int -rpc_fill_accepted_reply (struct rpc_msg *reply, int arstat, int proglow, - int proghigh, int verf, int len, char *vdata) +rpc_fill_accepted_reply(struct rpc_msg *reply, int arstat, int proglow, + int proghigh, int verf, int len, char *vdata) { - if (!reply) - return -1; - - reply->rm_reply.rp_stat = MSG_ACCEPTED; - reply->acpted_rply.ar_stat = arstat; - - reply->acpted_rply.ar_verf.oa_flavor = verf; - reply->acpted_rply.ar_verf.oa_length = len; - reply->acpted_rply.ar_verf.oa_base = vdata; - if (arstat == PROG_MISMATCH) { - reply->acpted_rply.ar_vers.low = proglow; - reply->acpted_rply.ar_vers.high = proghigh; - } else if (arstat == SUCCESS) { - - /* This is a hack. I'd really like to build a custom - * XDR library because Sun RPC interface is not very flexible. - */ - reply->acpted_rply.ar_results.proc = (xdrproc_t)true_func; - reply->acpted_rply.ar_results.where = NULL; - } - - return 0; + int ret = -1; + + GF_VALIDATE_OR_GOTO("rpc", reply, out); + + reply->rm_reply.rp_stat = MSG_ACCEPTED; + reply->acpted_rply.ar_stat = arstat; + + reply->acpted_rply.ar_verf.oa_flavor = verf; + reply->acpted_rply.ar_verf.oa_length = len; + reply->acpted_rply.ar_verf.oa_base = vdata; + if (arstat == PROG_MISMATCH) { + reply->acpted_rply.ar_vers.low = proglow; + reply->acpted_rply.ar_vers.high = proghigh; + } else if (arstat == SUCCESS) { + /* This is a hack. I'd really like to build a custom + * XDR library because Sun RPC interface is not very flexible. + */ + reply->acpted_rply.ar_results.proc = (xdrproc_t)true_func; + reply->acpted_rply.ar_results.where = NULL; + } + + ret = 0; +out: + return ret; } int -rpc_reply_to_xdr (struct rpc_msg *reply, char *dest, size_t len, - struct iovec *dst) +rpc_reply_to_xdr(struct rpc_msg *reply, char *dest, size_t len, + struct iovec *dst) { - XDR xdr; + XDR xdr; + int ret = -1; - if ((!dest) || (!reply) || (!dst)) - return -1; + GF_VALIDATE_OR_GOTO("rpc", reply, out); + GF_VALIDATE_OR_GOTO("rpc", dest, out); + GF_VALIDATE_OR_GOTO("rpc", dst, out); - xdrmem_create (&xdr, dest, len, XDR_ENCODE); - if (!xdr_replymsg(&xdr, reply)) - return -1; + xdrmem_create(&xdr, dest, len, XDR_ENCODE); + if (!xdr_replymsg(&xdr, reply)) { + gf_log("rpc", GF_LOG_WARNING, "failed to encode reply msg"); + goto out; + } - dst->iov_base = dest; - dst->iov_len = xdr_encoded_length (xdr); + dst->iov_base = dest; + dst->iov_len = xdr_encoded_length(xdr); - return 0; + ret = 0; +out: + return ret; } - int -xdr_to_auth_unix_cred (char *msgbuf, int msglen, struct authunix_parms *au, - char *machname, gid_t *gids) +xdr_to_auth_unix_cred(char *msgbuf, int msglen, struct authunix_parms *au, + char *machname, gid_t *gids) { - XDR xdr; + XDR xdr; + int ret = -1; - if ((!msgbuf) || (!machname) || (!gids) || (!au)) - return -1; + GF_VALIDATE_OR_GOTO("rpc", msgbuf, out); + GF_VALIDATE_OR_GOTO("rpc", machname, out); + GF_VALIDATE_OR_GOTO("rpc", gids, out); + GF_VALIDATE_OR_GOTO("rpc", au, out); - au->aup_machname = machname; -#ifdef GF_DARWIN_HOST_OS - au->aup_gids = (int *)gids; + au->aup_machname = machname; +#if defined(GF_DARWIN_HOST_OS) || defined(__FreeBSD__) + au->aup_gids = (int *)gids; #else - au->aup_gids = gids; + au->aup_gids = gids; #endif - xdrmem_create (&xdr, msgbuf, msglen, XDR_DECODE); + xdrmem_create(&xdr, msgbuf, msglen, XDR_DECODE); - if (!xdr_authunix_parms (&xdr, au)) - return -1; + if (!xdr_authunix_parms(&xdr, au)) { + gf_log("rpc", GF_LOG_WARNING, "failed to decode auth unix parms"); + goto out; + } - return 0; + ret = 0; +out: + return ret; } diff --git a/rpc/rpc-lib/src/xdr-rpc.h b/rpc/rpc-lib/src/xdr-rpc.h index d504391d5f0..7baed273846 100644 --- a/rpc/rpc-lib/src/xdr-rpc.h +++ b/rpc/rpc-lib/src/xdr-rpc.h @@ -1,30 +1,16 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ -#ifndef _XDR_RPC_H +#ifndef _XDR_RPC_H_ #define _XDR_RPC_H_ -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - #ifndef GF_SOLARIS_HOST_OS #include <rpc/rpc.h> #endif @@ -34,49 +20,76 @@ #include <rpc/auth_sys.h> #endif -//#include <rpc/pmap_clnt.h> #include <arpa/inet.h> #include <rpc/xdr.h> #include <sys/uio.h> +#include "xdr-common.h" + +typedef enum { + AUTH_GLUSTERFS = 5, + AUTH_GLUSTERFS_v2 = 390039, /* using a number from 'unused' range, + from the list available in RFC5531 */ + AUTH_GLUSTERFS_v3 = 390040, /* this too is unused */ +} gf_rpc_authtype_t; + /* Converts a given network buffer from its XDR format to a structure * that contains everything an RPC call needs to work. */ extern int -xdr_to_rpc_call (char *msgbuf, size_t len, struct rpc_msg *call, - struct iovec *payload, char *credbytes, char *verfbytes); +xdr_to_rpc_call(char *msgbuf, size_t len, struct rpc_msg *call, + struct iovec *payload, char *credbytes, char *verfbytes); extern int -rpc_fill_empty_reply (struct rpc_msg *reply, uint32_t xid); +rpc_fill_empty_reply(struct rpc_msg *reply, uint32_t xid); extern int -rpc_fill_denied_reply (struct rpc_msg *reply, int rjstat, int auth_err); +rpc_fill_denied_reply(struct rpc_msg *reply, int rjstat, int auth_err); extern int -rpc_fill_accepted_reply (struct rpc_msg *reply, int arstat, int proglow, - int proghigh, int verf, int len, char *vdata); +rpc_fill_accepted_reply(struct rpc_msg *reply, int arstat, int proglow, + int proghigh, int verf, int len, char *vdata); extern int -rpc_reply_to_xdr (struct rpc_msg *reply, char *dest, size_t len, - struct iovec *dst); +rpc_reply_to_xdr(struct rpc_msg *reply, char *dest, size_t len, + struct iovec *dst); extern int -xdr_to_auth_unix_cred (char *msgbuf, int msglen, struct authunix_parms *au, - char *machname, gid_t *gids); -/* Macros that simplify accesing the members of an RPC call structure. */ -#define rpc_call_xid(call) ((call)->rm_xid) -#define rpc_call_direction(call) ((call)->rm_direction) -#define rpc_call_rpcvers(call) ((call)->ru.RM_cmb.cb_rpcvers) -#define rpc_call_program(call) ((call)->ru.RM_cmb.cb_prog) -#define rpc_call_progver(call) ((call)->ru.RM_cmb.cb_vers) -#define rpc_call_progproc(call) ((call)->ru.RM_cmb.cb_proc) -#define rpc_opaque_auth_flavour(oa) ((oa)->oa_flavor) -#define rpc_opaque_auth_len(oa) ((oa)->oa_length) - -#define rpc_call_cred_flavour(call) (rpc_opaque_auth_flavour ((&(call)->ru.RM_cmb.cb_cred))) -#define rpc_call_cred_len(call) (rpc_opaque_auth_len ((&(call)->ru.RM_cmb.cb_cred))) - - -#define rpc_call_verf_flavour(call) (rpc_opaque_auth_flavour ((&(call)->ru.RM_cmb.cb_verf))) -#define rpc_call_verf_len(call) (rpc_opaque_auth_len ((&(call)->ru.RM_cmb.cb_verf))) +xdr_to_auth_unix_cred(char *msgbuf, int msglen, struct authunix_parms *au, + char *machname, gid_t *gids); +/* Macros that simplify accessing the members of an RPC call structure. */ +#define rpc_call_xid(call) ((call)->rm_xid) +#define rpc_call_direction(call) ((call)->rm_direction) +#define rpc_call_rpcvers(call) ((call)->ru.RM_cmb.cb_rpcvers) +#define rpc_call_program(call) ((call)->ru.RM_cmb.cb_prog) +#define rpc_call_progver(call) ((call)->ru.RM_cmb.cb_vers) +#define rpc_call_progproc(call) ((call)->ru.RM_cmb.cb_proc) +#define rpc_opaque_auth_flavour(oa) ((oa)->oa_flavor) +#define rpc_opaque_auth_len(oa) ((oa)->oa_length) + +#define rpc_call_cred_flavour(call) \ + (rpc_opaque_auth_flavour((&(call)->ru.RM_cmb.cb_cred))) +#define rpc_call_cred_len(call) \ + (rpc_opaque_auth_len((&(call)->ru.RM_cmb.cb_cred))) + +#define rpc_call_verf_flavour(call) \ + (rpc_opaque_auth_flavour((&(call)->ru.RM_cmb.cb_verf))) +#define rpc_call_verf_len(call) \ + (rpc_opaque_auth_len((&(call)->ru.RM_cmb.cb_verf))) + +#if defined(GF_DARWIN_HOST_OS) || !defined(HAVE_RPC_RPC_H) +#define GF_PRI_RPC_XID PRIu32 +#define GF_PRI_RPC_VERSION PRIu32 +#define GF_PRI_RPC_PROG_ID PRIu32 +#define GF_PRI_RPC_PROG_VERS PRIu32 +#define GF_PRI_RPC_PROC PRIu32 +#define GF_PRI_RPC_PROC_VERSION PRIu32 +#else +#define GF_PRI_RPC_XID PRIu64 +#define GF_PRI_RPC_VERSION PRIu64 +#define GF_PRI_RPC_PROG_ID PRIu64 +#define GF_PRI_RPC_PROG_VERS PRIu64 +#define GF_PRI_RPC_PROC PRIu64 +#define GF_PRI_RPC_PROC_VERSION PRIu64 +#endif #endif diff --git a/rpc/rpc-lib/src/xdr-rpcclnt.c b/rpc/rpc-lib/src/xdr-rpcclnt.c index 933887b0b19..8dcdcfeda83 100644 --- a/rpc/rpc-lib/src/xdr-rpcclnt.c +++ b/rpc/rpc-lib/src/xdr-rpcclnt.c @@ -1,131 +1,105 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - #include <rpc/rpc.h> -#include <rpc/pmap_clnt.h> -#include <arpa/inet.h> #include <rpc/xdr.h> #include <sys/uio.h> #include <rpc/auth_unix.h> #include <errno.h> -#include "mem-pool.h" #include "xdr-rpc.h" #include "xdr-common.h" -#include "logging.h" +#include <glusterfs/common-utils.h> /* Decodes the XDR format in msgbuf into rpc_msg. * The remaining payload is returned into payload. */ int -xdr_to_rpc_reply (char *msgbuf, size_t len, struct rpc_msg *reply, - struct iovec *payload, char *verfbytes) +xdr_to_rpc_reply(char *msgbuf, size_t len, struct rpc_msg *reply, + struct iovec *payload, char *verfbytes) { - XDR xdr; - int ret = -1; - - if ((!msgbuf) || (!reply)) { - ret = -EINVAL; - goto out; - } - - memset (reply, 0, sizeof (struct rpc_msg)); - - reply->acpted_rply.ar_verf = _null_auth; - reply->acpted_rply.ar_results.where = NULL; - reply->acpted_rply.ar_results.proc = (xdrproc_t)(xdr_void); - - xdrmem_create (&xdr, msgbuf, len, XDR_DECODE); - if (!xdr_replymsg (&xdr, reply)) { - ret = -errno; - goto out; - } - if (payload) { - payload->iov_base = xdr_decoded_remaining_addr (xdr); - payload->iov_len = xdr_decoded_remaining_len (xdr); - } - - ret = 0; -out: - return ret; -} + XDR xdr; + int ret = -EINVAL; -#if 0 -bool_t -true_func (XDR *s, caddr_t *a) -{ - return TRUE; + GF_VALIDATE_OR_GOTO("rpc", msgbuf, out); + GF_VALIDATE_OR_GOTO("rpc", reply, out); + + memset(reply, 0, sizeof(struct rpc_msg)); + + reply->acpted_rply.ar_verf = _null_auth; + reply->acpted_rply.ar_results.where = NULL; + reply->acpted_rply.ar_results.proc = (xdrproc_t)(xdr_void); + + xdrmem_create(&xdr, msgbuf, len, XDR_DECODE); + if (!xdr_replymsg(&xdr, reply)) { + gf_log("rpc", GF_LOG_WARNING, "failed to decode reply msg"); + goto out; + } + if (payload) { + payload->iov_base = xdr_decoded_remaining_addr(xdr); + payload->iov_len = xdr_decoded_remaining_len(xdr); + } + + ret = 0; +out: + return ret; } -#endif int -rpc_request_to_xdr (struct rpc_msg *request, char *dest, size_t len, - struct iovec *dst) +rpc_request_to_xdr(struct rpc_msg *request, char *dest, size_t len, + struct iovec *dst) { - XDR xdr; - int ret = -1; + XDR xdr; + int ret = -1; - if ((!dest) || (!request) || (!dst)) { - goto out; - } + GF_VALIDATE_OR_GOTO("rpc", dest, out); + GF_VALIDATE_OR_GOTO("rpc", request, out); + GF_VALIDATE_OR_GOTO("rpc", dst, out); - xdrmem_create (&xdr, dest, len, XDR_ENCODE); - if (!xdr_callmsg (&xdr, request)) { - goto out; - } + xdrmem_create(&xdr, dest, len, XDR_ENCODE); + if (!xdr_callmsg(&xdr, request)) { + gf_log("rpc", GF_LOG_WARNING, "failed to encode call msg"); + goto out; + } - dst->iov_base = dest; - dst->iov_len = xdr_encoded_length (xdr); + dst->iov_base = dest; + dst->iov_len = xdr_encoded_length(xdr); - ret = 0; + ret = 0; out: - return ret; + return ret; } - int -auth_unix_cred_to_xdr (struct authunix_parms *au, char *dest, size_t len, - struct iovec *iov) +auth_unix_cred_to_xdr(struct authunix_parms *au, char *dest, size_t len, + struct iovec *iov) { - XDR xdr; - int ret = -1; + XDR xdr; + int ret = -1; - if (!au || !dest || !iov) { - goto out; - } + GF_VALIDATE_OR_GOTO("rpc", au, out); + GF_VALIDATE_OR_GOTO("rpc", dest, out); + GF_VALIDATE_OR_GOTO("rpc", iov, out); - xdrmem_create (&xdr, dest, len, XDR_DECODE); + xdrmem_create(&xdr, dest, len, XDR_DECODE); - if (!xdr_authunix_parms (&xdr, au)) { - goto out; - } + if (!xdr_authunix_parms(&xdr, au)) { + gf_log("rpc", GF_LOG_WARNING, "failed to decode authunix parms"); + goto out; + } - iov->iov_base = dest; - iov->iov_len = xdr_encoded_length (xdr); + iov->iov_base = dest; + iov->iov_len = xdr_encoded_length(xdr); - ret = 0; + ret = 0; out: - return ret; + return ret; } diff --git a/rpc/rpc-lib/src/xdr-rpcclnt.h b/rpc/rpc-lib/src/xdr-rpcclnt.h index c0d925ee739..58eda4892a9 100644 --- a/rpc/rpc-lib/src/xdr-rpcclnt.h +++ b/rpc/rpc-lib/src/xdr-rpcclnt.h @@ -1,51 +1,36 @@ /* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ #ifndef _XDR_RPCCLNT_H #define _XDR_RPCCLNT_H -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - -//#include <rpc/rpc.h> -//#include <rpc/pmap_clnt.h> #include <arpa/inet.h> #include <rpc/xdr.h> #include <sys/uio.h> #include <rpc/rpc_msg.h> #include <rpc/auth_unix.h> -/* Macros that simplify accesing the members of an RPC call structure. */ -#define rpc_reply_xid(reply) ((reply)->rm_xid) -#define rpc_reply_status(reply) ((reply)->ru.RM_rmb.rp_stat) -#define rpc_accepted_reply_status(reply) ((reply)->acpted_rply.ar_stat) -#define rpc_reply_verf_flavour(reply) ((reply)->acpted_rply.ar_verf.oa_flavor) +/* Macros that simplify accessing the members of an RPC call structure. */ +#define rpc_reply_xid(reply) ((reply)->rm_xid) +#define rpc_reply_status(reply) ((reply)->ru.RM_rmb.rp_stat) +#define rpc_accepted_reply_status(reply) ((reply)->acpted_rply.ar_stat) +#define rpc_reply_verf_flavour(reply) ((reply)->acpted_rply.ar_verf.oa_flavor) -int xdr_to_rpc_reply (char *msgbuf, size_t len, struct rpc_msg *reply, - struct iovec *payload, char *verfbytes); int -rpc_request_to_xdr (struct rpc_msg *request, char *dest, size_t len, - struct iovec *dst); +xdr_to_rpc_reply(char *msgbuf, size_t len, struct rpc_msg *reply, + struct iovec *payload, char *verfbytes); +int +rpc_request_to_xdr(struct rpc_msg *request, char *dest, size_t len, + struct iovec *dst); int -auth_unix_cred_to_xdr (struct authunix_parms *au, char *dest, size_t len, - struct iovec *iov); +auth_unix_cred_to_xdr(struct authunix_parms *au, char *dest, size_t len, + struct iovec *iov); #endif |