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authorVijay Bellur <vijay@gluster.com>2010-06-28 02:49:46 +0000
committerAnand V. Avati <avati@dev.gluster.com>2010-06-28 22:20:45 -0700
commit0da2a6d08cc8fc2315742d010c8a8cab38ef75bb (patch)
treeeed93284ad3826ac7401c9f9540b6afe9a68c2cc /rpc/rpc-lib
parent2c5c3cedc096c36ef9d004ffa0cdb5324d2915e6 (diff)
Move rpc to top-level
Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 875 (Implement a new protocol to provide proper backward/forward compatibility) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=875
Diffstat (limited to 'rpc/rpc-lib')
-rw-r--r--rpc/rpc-lib/Makefile.am1
-rw-r--r--rpc/rpc-lib/src/Makefile.am15
-rw-r--r--rpc/rpc-lib/src/auth-glusterfs.c199
-rw-r--r--rpc/rpc-lib/src/auth-null.c70
-rw-r--r--rpc/rpc-lib/src/auth-unix.c90
-rw-r--r--rpc/rpc-lib/src/rpc-clnt.c1283
-rw-r--r--rpc/rpc-lib/src/rpc-clnt.h166
-rw-r--r--rpc/rpc-lib/src/rpc-transport.c1301
-rw-r--r--rpc/rpc-lib/src/rpc-transport.h288
-rw-r--r--rpc/rpc-lib/src/rpcsvc-auth.c409
-rw-r--r--rpc/rpc-lib/src/rpcsvc-common.h83
-rw-r--r--rpc/rpc-lib/src/rpcsvc.c2015
-rw-r--r--rpc/rpc-lib/src/rpcsvc.h582
-rw-r--r--rpc/rpc-lib/src/xdr-common.h68
-rw-r--r--rpc/rpc-lib/src/xdr-rpc.c193
-rw-r--r--rpc/rpc-lib/src/xdr-rpc.h74
-rw-r--r--rpc/rpc-lib/src/xdr-rpcclnt.c131
-rw-r--r--rpc/rpc-lib/src/xdr-rpcclnt.h51
18 files changed, 7019 insertions, 0 deletions
diff --git a/rpc/rpc-lib/Makefile.am b/rpc/rpc-lib/Makefile.am
new file mode 100644
index 00000000000..af437a64d6d
--- /dev/null
+++ b/rpc/rpc-lib/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS = src
diff --git a/rpc/rpc-lib/src/Makefile.am b/rpc/rpc-lib/src/Makefile.am
new file mode 100644
index 00000000000..4df8888a08d
--- /dev/null
+++ b/rpc/rpc-lib/src/Makefile.am
@@ -0,0 +1,15 @@
+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
+libgfrpc_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la
+
+noinst_HEADERS = rpcsvc.h rpc-transport.h xdr-common.h xdr-rpc.h xdr-rpcclnt.h \
+ rpc-clnt.h rpcsvc-common.h
+AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall -D$(GF_HOST_OS)\
+ -I$(top_srcdir)/libglusterfs/src -shared -nostartfiles $(GF_CFLAGS) \
+ -I$(top_srcdir)/xlators/protocol/lib/src \
+ -DRPC_TRANSPORTDIR=\"$(libdir)/glusterfs/$(PACKAGE_VERSION)/rpc-transport\"
+
+CLEANFILES = *~
diff --git a/rpc/rpc-lib/src/auth-glusterfs.c b/rpc/rpc-lib/src/auth-glusterfs.c
new file mode 100644
index 00000000000..e248bf142aa
--- /dev/null
+++ b/rpc/rpc-lib/src/auth-glusterfs.c
@@ -0,0 +1,199 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "rpcsvc.h"
+#include "list.h"
+#include "dict.h"
+#include "xdr-rpc.h"
+#include "xdr-common.h"
+
+bool_t
+xdr_auth_glusterfs_parms (XDR *xdrs, auth_glusterfs_parms *objp)
+{
+ 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;
+}
+
+ssize_t
+xdr_to_glusterfs_auth (char *buf, struct auth_glusterfs_parms *req)
+{
+ XDR xdr;
+ ssize_t ret = -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;
+ }
+
+ 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)
+{
+ if (!req)
+ return -1;
+ memset (req->verf.authdata, 0, RPCSVC_MAX_AUTH_BYTES);
+ req->verf.datalen = 0;
+ req->verf.flavour = AUTH_NULL;
+
+ return 0;
+}
+
+int auth_glusterfs_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:
+ return ret;
+}
+
+rpcsvc_auth_ops_t auth_glusterfs_ops = {
+ .conn_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)
+{
+ return &rpcsvc_auth_glusterfs;
+}
diff --git a/rpc/rpc-lib/src/auth-null.c b/rpc/rpc-lib/src/auth-null.c
new file mode 100644
index 00000000000..a2581a1718d
--- /dev/null
+++ b/rpc/rpc-lib/src/auth-null.c
@@ -0,0 +1,70 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "rpcsvc.h"
+#include "list.h"
+#include "dict.h"
+
+
+int
+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;
+}
+
+int auth_null_authenticate (rpcsvc_request_t *req, void *priv)
+{
+ /* Always succeed. */
+ return RPCSVC_AUTH_ACCEPT;
+}
+
+rpcsvc_auth_ops_t auth_null_ops = {
+ .conn_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)
+{
+ return &rpcsvc_auth_null;
+}
diff --git a/rpc/rpc-lib/src/auth-unix.c b/rpc/rpc-lib/src/auth-unix.c
new file mode 100644
index 00000000000..aed3c1f9d46
--- /dev/null
+++ b/rpc/rpc-lib/src/auth-unix.c
@@ -0,0 +1,90 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "rpcsvc.h"
+#include "list.h"
+#include "dict.h"
+#include "xdr-rpc.h"
+
+
+int
+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;
+}
+
+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;
+ }
+
+ 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;
+}
+
+rpcsvc_auth_ops_t auth_unix_ops = {
+ .conn_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)
+{
+ return &rpcsvc_auth_unix;
+}
diff --git a/rpc/rpc-lib/src/rpc-clnt.c b/rpc/rpc-lib/src/rpc-clnt.c
new file mode 100644
index 00000000000..84fdb9bb55f
--- /dev/null
+++ b/rpc/rpc-lib/src/rpc-clnt.c
@@ -0,0 +1,1283 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "rpc-clnt.h"
+#include "xdr-rpcclnt.h"
+#include "rpc-transport.h"
+#include "protocol-common.h"
+
+uint64_t
+rpc_clnt_new_callid (struct rpc_clnt *clnt)
+{
+ uint64_t callid = 0;
+
+ pthread_mutex_lock (&clnt->lock);
+ {
+ callid = ++clnt->xid;
+ }
+ pthread_mutex_unlock (&clnt->lock);
+
+ return callid;
+}
+
+
+struct saved_frame *
+__saved_frames_get_timedout (struct saved_frames *frames, uint32_t timeout,
+ struct timeval *current)
+{
+ 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;
+}
+
+
+struct saved_frame *
+__saved_frames_put (struct saved_frames *frames, void *frame, int32_t procnum,
+ rpc_clnt_prog_t *prog, fop_cbk_fn_t cbk, int64_t callid)
+{
+ struct saved_frame *saved_frame = NULL;
+
+ saved_frame = GF_CALLOC (1, sizeof (*saved_frame),
+ gf_common_mt_rpcclnt_savedframe_t);
+ if (!saved_frame) {
+ gf_log ("rpc-clnt", GF_LOG_ERROR, "out of memory");
+ goto out;
+ }
+ /* THIS should be saved and set back */
+
+ INIT_LIST_HEAD (&saved_frame->list);
+
+ saved_frame->capital_this = THIS;
+ saved_frame->frame = frame;
+ saved_frame->procnum = procnum;
+ saved_frame->callid = callid;
+ saved_frame->prog = prog;
+ saved_frame->cbkfn = cbk;
+
+ gettimeofday (&saved_frame->saved_at, NULL);
+
+ list_add_tail (&saved_frame->list, &frames->sf.list);
+ frames->count++;
+
+out:
+ return saved_frame;
+}
+
+
+void
+saved_frames_delete (struct saved_frame *saved_frame,
+ rpc_clnt_connection_t *conn)
+{
+ if (!saved_frame || !conn) {
+ goto out;
+ }
+
+ pthread_mutex_lock (&conn->lock);
+ {
+ list_del_init (&saved_frame->list);
+ conn->saved_frames->count--;
+ }
+ pthread_mutex_unlock (&conn->lock);
+
+ GF_FREE (saved_frame);
+out:
+ return;
+}
+
+
+static void
+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,};
+ gf_timer_cbk_t timer_cbk = NULL;
+ struct rpc_req req;
+ struct iovec iov = {0,};
+
+ GF_VALIDATE_OR_GOTO ("client", data, out);
+
+ clnt = data;
+
+ conn = &clnt->conn;
+
+ gettimeofday (&current, NULL);
+ INIT_LIST_HEAD (&list);
+
+ pthread_mutex_lock (&conn->lock);
+ {
+ /* Chaining to get call-always functionality from
+ call-once timer */
+ if (conn->timer) {
+ timer_cbk = conn->timer->callbk;
+
+ 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,
+ &current);
+ 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)) sent = %s. "
+ "timeout = %d",
+ trav->prog->progname, (trav->prog->procnames) ?
+ trav->prog->procnames[trav->procnum] : "--",
+ trav->procnum, frame_sent,
+ conn->frame_timeout);
+
+ trav->cbkfn (&req, &iov, 1, trav->frame);
+
+ list_del_init (&trav->list);
+ GF_FREE (trav);
+ }
+out:
+ return;
+}
+
+
+/* to be called with conn->lock held */
+struct saved_frame *
+__save_frame (struct rpc_clnt *rpc_clnt, call_frame_t *frame, int procnum,
+ rpc_clnt_prog_t *prog, fop_cbk_fn_t cbk, uint64_t callid)
+{
+ 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,
+ procnum, prog, cbk, callid);
+ 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);
+ }
+
+out:
+ return saved_frame;
+}
+
+
+struct saved_frames *
+saved_frames_new (void)
+{
+ 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;
+ }
+
+ INIT_LIST_HEAD (&saved_frames->sf.list);
+
+ return saved_frames;
+}
+
+
+int
+__saved_frame_copy (struct saved_frames *frames, int64_t callid,
+ struct saved_frame *saved_frame)
+{
+ struct saved_frame *tmp = NULL;
+ int ret = -1;
+
+ if (!saved_frame) {
+ ret = 0;
+ goto out;
+ }
+
+ list_for_each_entry (tmp, &frames->sf.list, list) {
+ if (tmp->callid == callid) {
+ *saved_frame = *tmp;
+ ret = 0;
+ break;
+ }
+ }
+
+out:
+ return ret;
+}
+
+
+struct saved_frame *
+__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->callid == callid) {
+ list_del_init (&tmp->list);
+ frames->count--;
+ saved_frame = tmp;
+ break;
+ }
+ }
+
+ if (saved_frame) {
+ THIS = saved_frame->capital_this;
+ }
+
+ return saved_frame;
+}
+
+void
+saved_frames_unwind (struct saved_frames *saved_frames)
+{
+ struct saved_frame *trav = NULL;
+ struct saved_frame *tmp = NULL;
+
+ struct rpc_req req;
+ struct iovec iov = {0,};
+
+ memset (&req, 0, sizeof (req));
+
+ req.rpc_status = -1;
+
+ list_for_each_entry_safe (trav, tmp, &saved_frames->sf.list, list) {
+ gf_log ("rpc-clnt", GF_LOG_ERROR,
+ "forced unwinding frame type(%s) op(%s(%d))",
+ trav->prog->progname, (trav->prog->procnames) ?
+ trav->prog->procnames[trav->procnum] : "--",
+ trav->procnum);
+
+ saved_frames->count--;
+
+ trav->cbkfn (&req, &iov, 1, trav->frame);
+
+ list_del_init (&trav->list);
+ GF_FREE (trav);
+ }
+}
+
+
+void
+saved_frames_destroy (struct saved_frames *frames)
+{
+ saved_frames_unwind (frames);
+
+ GF_FREE (frames);
+}
+
+
+void
+rpc_clnt_reconnect (void *trans_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->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;
+}
+
+
+int
+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)", info->xid);
+ goto out;
+ }
+
+ info->prognum = saved_frame.prog->prognum;
+ info->procnum = saved_frame.procnum;
+ info->progver = saved_frame.prog->progver;
+ info->rsp = saved_frame.rsp;
+
+ ret = 0;
+out:
+ return ret;
+}
+
+
+/*
+ * client_protocol_cleanup - cleanup function
+ * @trans: transport object
+ *
+ */
+int
+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;
+ }
+
+ if (conn->reconnect == NULL) {
+ /* :O This part is empty.. any thing missing? */
+ }
+
+ conn->connected = 0;
+ }
+ pthread_mutex_unlock (&conn->lock);
+
+ saved_frames_destroy (saved_frames);
+
+out:
+ return 0;
+}
+
+/*
+ * lookup_frame - lookup call frame corresponding to a given callid
+ * @trans: transport object
+ * @callid: call id of the frame
+ *
+ * not for external reference
+ */
+
+static struct saved_frame *
+lookup_frame (rpc_clnt_connection_t *conn, int64_t callid)
+{
+ struct saved_frame *frame = NULL;
+
+ pthread_mutex_lock (&conn->lock);
+ {
+ frame = __saved_frame_get (conn->saved_frames, callid);
+ }
+ pthread_mutex_unlock (&conn->lock);
+
+ 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)
+{
+ 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->xid = rpc_reply_xid (replymsg);
+ req->prog = saved_frame->prog;
+ req->procnum = saved_frame->procnum;
+ req->conn = conn;
+
+ req->rsp[0] = progmsg;
+
+ if (msg->vectored) {
+ req->rsp[1].iov_base = iobuf_ptr (msg->data.vector.iobuf2);
+ req->rsp[1].iov_len = msg->data.vector.size2;
+
+ req->rspcnt = 2;
+
+ req->rsp_prochdr = iobuf_ref (msg->data.vector.iobuf1);
+ req->rsp_procpayload = iobuf_ref (msg->data.vector.iobuf2);
+ } else {
+ req->rspcnt = 1;
+
+ req->rsp_prochdr = iobuf_ref (msg->data.simple.iobuf);
+ }
+
+ /* 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);
+ */
+ }
+
+ ret = 0;
+
+out:
+ return ret;
+}
+
+
+void
+rpc_clnt_reply_deinit (struct rpc_req *req)
+{
+ if (!req) {
+ goto out;
+ }
+
+ if (req->rsp_prochdr) {
+ iobuf_unref (req->rsp_prochdr);
+ }
+
+ if (req->rsp_procpayload) {
+ iobuf_unref (req->rsp_procpayload);
+ }
+
+out:
+ 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)
+{
+ char *msgbuf = NULL;
+ struct rpc_msg rpcmsg;
+ struct iovec progmsg; /* RPC Program payload */
+ size_t msglen = 0;
+ int ret = -1;
+
+ if (msg->vectored) {
+ msgbuf = iobuf_ptr (msg->data.vector.iobuf1);
+ msglen = msg->data.vector.size1;
+ } else {
+ msgbuf = iobuf_ptr (msg->data.simple.iobuf);
+ msglen = msg->data.simple.size;
+ }
+
+ 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: %"PRIx64", Program: %s,"
+ " ProgVers: %d, Proc: %d", saved_frame->callid,
+ saved_frame->prog->progname, saved_frame->prog->progver,
+ saved_frame->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;
+
+out:
+ if (ret != 0) {
+ req->rpc_status = -1;
+ }
+
+ return ret;
+}
+
+
+int
+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;
+ rpc_request_info_t *request_info = NULL;
+ int ret = -1;
+ struct rpc_req req = {0, };
+
+ conn = &clnt->conn;
+
+ request_info = pollin->private;
+
+ saved_frame = lookup_frame (conn, (int64_t)request_info->xid);
+ if (saved_frame == NULL) {
+ gf_log ("rpc-clnt", GF_LOG_CRITICAL, "cannot lookup the "
+ "saved frame for reply with xid (%d), "
+ "prog-version (%d), prog-num (%d),"
+ "procnum (%d)", request_info->xid,
+ request_info->progver, request_info->prognum,
+ request_info->procnum);
+ 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");
+ }
+
+ saved_frame->cbkfn (&req, req.rsp, req.rspcnt, saved_frame->frame);
+
+ if (ret == 0) {
+ rpc_clnt_reply_deinit (&req);
+ }
+
+ ret = 0;
+out:
+
+ if (saved_frame) {
+ GF_FREE (saved_frame);
+ }
+
+ return ret;
+}
+
+
+inline void
+rpc_clnt_set_connected (rpc_clnt_connection_t *conn)
+{
+ if (!conn) {
+ goto out;
+ }
+
+ pthread_mutex_lock (&conn->lock);
+ {
+ conn->connected = 1;
+ }
+ pthread_mutex_unlock (&conn->lock);
+
+out:
+ return;
+}
+
+
+void
+rpc_clnt_unset_connected (rpc_clnt_connection_t *conn)
+{
+ if (!conn) {
+ goto out;
+ }
+
+ pthread_mutex_lock (&conn->lock);
+ {
+ conn->connected = 0;
+ }
+ pthread_mutex_unlock (&conn->lock);
+
+out:
+ return;
+}
+
+
+int
+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;
+
+ 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);
+
+ ret = clnt->notifyfn (clnt, clnt->mydata, RPC_CLNT_DISCONNECT,
+ NULL);
+ 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;
+ ret = rpc_clnt_handle_reply (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);
+ }
+ pthread_mutex_unlock (&conn->lock);
+
+ ret = 0;
+ break;
+ }
+
+ case RPC_TRANSPORT_CONNECT:
+ {
+ ret = clnt->notifyfn (clnt, clnt->mydata, RPC_CLNT_CONNECT, NULL);
+ break;
+ }
+
+ case RPC_TRANSPORT_ACCEPT:
+ /* only meaningful on a server, no need of handling this event
+ * in a client.
+ */
+ ret = 0;
+ break;
+ }
+
+out:
+ return ret;
+}
+
+
+void
+rpc_clnt_connection_deinit (rpc_clnt_connection_t *conn)
+{
+ return;
+}
+
+
+inline int
+rpc_clnt_connection_init (struct rpc_clnt *clnt, glusterfs_ctx_t *ctx,
+ dict_t *options, char *name)
+{
+ int ret = -1;
+ rpc_clnt_connection_t *conn = NULL;
+
+ 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;
+
+ 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;
+ }
+
+ 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;
+ }
+
+ rpc_clnt_reconnect (conn->trans);
+
+ ret = 0;
+
+out:
+ return ret;
+}
+
+
+struct rpc_clnt *
+rpc_clnt_init (struct rpc_clnt_config *config, dict_t *options,
+ glusterfs_ctx_t *ctx, char *name)
+{
+ int ret = -1;
+ struct rpc_clnt *rpc = 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;
+ }
+
+ pthread_mutex_init (&rpc->lock, NULL);
+ rpc->ctx = ctx;
+
+ ret = rpc_clnt_connection_init (rpc, ctx, options, name);
+ if (ret == -1) {
+ pthread_mutex_destroy (&rpc->lock);
+ GF_FREE (rpc);
+ rpc = NULL;
+ goto out;
+ }
+out:
+ return rpc;
+}
+
+
+int
+rpc_clnt_register_notify (struct rpc_clnt *rpc, rpc_clnt_notify_t fn,
+ void *mydata)
+{
+ rpc->mydata = mydata;
+ rpc->notifyfn = fn;
+
+ return 0;
+}
+
+ssize_t
+xdr_serialize_glusterfs_auth (char *dest, struct auth_glusterfs_parms *au)
+{
+ ssize_t ret = -1;
+ XDR xdr;
+
+ if ((!dest) || (!au))
+ return -1;
+
+ xdrmem_create (&xdr, dest, 1024,
+ XDR_ENCODE);
+
+ if (!xdr_auth_glusterfs_parms (&xdr, au)) {
+ ret = -1;
+ goto ret;
+ }
+
+ ret = (((size_t)(&xdr)->x_private) - ((size_t)(&xdr)->x_base));
+
+ret:
+ 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)
+{
+ int ret = -1;
+ char dest[1024] = {0,};
+
+ if (!request) {
+ goto out;
+ }
+
+ memset (request, 0, sizeof (*request));
+
+ 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;
+
+ /* 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 (dest, au);
+ if (ret == -1) {
+ gf_log ("rpc-clnt", GF_LOG_DEBUG, "cannot encode credentials");
+ goto out;
+ }
+
+ request->rm_call.cb_cred.oa_flavor = AUTH_GLUSTERFS;
+ request->rm_call.cb_cred.oa_base = dest;
+ 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;
+
+ ret = 0;
+out:
+ return ret;
+}
+
+
+void
+rpc_clnt_set_lastfrag (uint32_t *fragsize) {
+ (*fragsize) |= 0x80000000U;
+}
+
+
+void
+rpc_clnt_set_frag_header_size (uint32_t size, char *haddr)
+{
+ size = htonl (size);
+ memcpy (haddr, &size, sizeof (size));
+}
+
+
+void
+rpc_clnt_set_last_frag_header_size (uint32_t size, char *haddr)
+{
+ rpc_clnt_set_lastfrag (&size);
+ rpc_clnt_set_frag_header_size (size, haddr);
+}
+
+
+struct iovec
+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};
+ 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_request_to_xdr (request, (recordstart + RPC_FRAGHDR_SIZE),
+ 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);
+
+ /* Since we're not spreading RPC records over mutiple fragments
+ * we just set this fragment as the first and last fragment for this
+ * record.
+ */
+ rpc_clnt_set_last_frag_header_size (fraglen, recordstart);
+
+ /* Even though the RPC record starts at recordstart+RPCSVC_FRAGHDR_SIZE
+ * we need to transmit the record with the fragment header, which starts
+ * at recordstart.
+ */
+ 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 = RPC_FRAGHDR_SIZE + requesthdr.iov_len;
+
+out:
+ 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)
+{
+ 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 ((!clnt) || (!recbuf) || (!au)) {
+ goto out;
+ }
+
+ /* 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;
+ }
+
+ pagesize = ((struct iobuf_pool *)clnt->ctx->iobuf_pool)->page_size;
+
+ record = iobuf_ptr (request_iob); /* Now we have it. */
+
+ /* Fill the rpc structure and XDR it into the buffer got above. */
+ ret = rpc_clnt_fill_request (prognum, progver, procnum, payload, xid,
+ au, &request);
+ if (ret == -1) {
+ gf_log ("rpc-clnt", GF_LOG_DEBUG, "cannot build a rpc-request "
+ "xid (%"PRIu64")", xid);
+ goto out;
+ }
+
+ recordhdr = rpc_clnt_record_build_header (record, pagesize, &request,
+ payload);
+
+ //GF_FREE (request.rm_call.cb_cred.oa_base);
+
+ 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;
+
+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;
+ }
+
+ 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;
+
+ 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 (au.groups, call_frame->root->groups, 16);
+
+ //rpc_transport_get_myname (clnt->conn.trans, myname, UNIX_PATH_MAX);
+ //au.aup_machname = myname;
+
+ /* 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;
+ }
+
+out:
+ return request_iob;
+}
+
+
+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)
+{
+ rpc_clnt_connection_t *conn = NULL;
+ struct iobuf *request_iob = NULL;
+ struct iovec rpchdr = {0,};
+ struct rpc_req rpcreq = {0,};
+ 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;
+ }
+
+ memset (&req, 0, sizeof (req));
+
+ if (!iobref) {
+ iobref = iobref_new ();
+ if (!iobref) {
+ gf_log ("rpc-clnt", GF_LOG_ERROR, "out of memory");
+ goto out;
+ }
+
+ new_iobref = 1;
+ }
+
+ callid = rpc_clnt_new_callid (rpc);
+
+ conn = &rpc->conn;
+
+ pthread_mutex_lock (&conn->lock);
+ {
+ if (conn->connected == 0) {
+ rpc_transport_connect (conn->trans);
+ }
+
+ ret = -1;
+
+ if (conn->connected ||
+ /* FIXME: hack!! hack!! find a neater way to do this */
+ ((prog->prognum == GLUSTER_HNDSK_PROGRAM) &&
+ ((procnum == GF_HNDSK_SETVOLUME) ||
+ (procnum == GF_HNDSK_DUMP_VERSION)))) {
+ if (proghdr) {
+ proglen += iov_length (proghdr, proghdrcount);
+ }
+
+ if (progpayload) {
+ proglen += iov_length (progpayload,
+ progpayloadcount);
+ }
+
+ 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;
+ }
+
+ 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;
+
+ 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 ((ret >= 0) && frame) {
+ gettimeofday (&conn->last_sent, NULL);
+ /* Save the frame in queue */
+ __save_frame (rpc, frame, procnum, prog, cbkfn, callid);
+ }
+
+ }
+unlock:
+ pthread_mutex_unlock (&conn->lock);
+
+ if (ret == -1) {
+ goto out;
+ }
+
+ ret = 0;
+
+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);
+ }
+ return ret;
+}
+
+
+void
+rpc_clnt_destroy (struct rpc_clnt *rpc)
+{
+ rpc_clnt_connection_cleanup (&rpc->conn);
+ pthread_mutex_destroy (&rpc->lock);
+ pthread_mutex_destroy (&rpc->conn.lock);
+ GF_FREE (rpc);
+ return;
+}
diff --git a/rpc/rpc-lib/src/rpc-clnt.h b/rpc/rpc-lib/src/rpc-clnt.h
new file mode 100644
index 00000000000..efc256cd261
--- /dev/null
+++ b/rpc/rpc-lib/src/rpc-clnt.h
@@ -0,0 +1,166 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _RPC_CLNT_H
+#define _RPC_CLNT_H
+
+#include "stack.h"
+#include "rpc-transport.h"
+#include "timer.h"
+#include "xdr-common.h"
+
+typedef enum {
+ RPC_CLNT_CONNECT,
+ RPC_CLNT_DISCONNECT,
+ RPC_CLNT_MSG
+} rpc_clnt_event_t;
+
+#define AUTH_GLUSTERFS 5
+
+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 (*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);
+
+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;
+ int32_t procnum;
+ struct rpc_clnt_program *prog;
+ fop_cbk_fn_t cbkfn;
+ uint64_t callid;
+ rpc_transport_rsp_t rsp;
+};
+
+struct saved_frames {
+ int64_t count;
+ struct saved_frame sf;
+};
+
+
+/* Initialized by procnum */
+typedef struct rpc_clnt_procedure {
+ 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;
+} rpc_clnt_prog_t;
+
+#define RPC_MAX_AUTH_BYTES 400
+typedef struct rpc_auth_data {
+ int flavour;
+ int datalen;
+ char authdata[RPC_MAX_AUTH_BYTES];
+} rpc_auth_data_t;
+
+#define rpc_auth_flavour(au) ((au).flavour)
+
+struct rpc_clnt_connection {
+ pthread_mutex_t lock;
+ rpc_transport_t *trans;
+ 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;
+};
+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 iovec rsp[2];
+ int rspcnt;
+ struct iobuf *rsp_prochdr;
+ struct iobuf *rsp_procpayload;
+ int rpc_status;
+ rpc_auth_data_t verf;
+ rpc_clnt_prog_t *prog;
+ int procnum;
+};
+
+struct rpc_clnt {
+ pthread_mutex_t lock;
+ rpc_clnt_notify_t notifyfn;
+ rpc_clnt_connection_t conn;
+ void *mydata;
+ uint64_t xid;
+ glusterfs_ctx_t *ctx;
+};
+
+struct rpc_clnt_config {
+ int rpc_timeout;
+ int remote_port;
+ char * remote_host;
+};
+
+
+struct rpc_clnt * rpc_clnt_init (struct rpc_clnt_config *config,
+ dict_t *options, glusterfs_ctx_t *ctx,
+ char *name);
+
+int rpc_clnt_register_notify (struct rpc_clnt *rpc, rpc_clnt_notify_t fn,
+ void *mydata);
+
+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);
+
+void rpc_clnt_destroy (struct rpc_clnt *rpc);
+
+void rpc_clnt_set_connected (rpc_clnt_connection_t *conn);
+
+void rpc_clnt_unset_connected (rpc_clnt_connection_t *conn);
+
+void rpc_clnt_reconnect (void *trans_ptr);
+
+#endif /* !_RPC_CLNT_H */
diff --git a/rpc/rpc-lib/src/rpc-transport.c b/rpc/rpc-lib/src/rpc-transport.c
new file mode 100644
index 00000000000..82ea9a74bfd
--- /dev/null
+++ b/rpc/rpc-lib/src/rpc-transport.c
@@ -0,0 +1,1301 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#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;
+
+ prev = 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)
+{
+ 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;
+}
+
+
+static char
+valid_internet_address (char *address)
+{
+ char ret = 0;
+ int length = 0;
+
+ 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;
+ }
+
+out:
+ return ret;
+}
+
+
+int
+__volume_option_value_validate (char *name,
+ data_pair_t *pair,
+ volume_option_t *opt)
+{
+ 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;
+ }
+
+out:
+ return ret;
+}
+
+/* FIXME: this procedure should be removed from transport */
+int
+validate_volume_options (char *name, dict_t *options, volume_option_t *opt)
+{
+ 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;
+}
+
+int32_t
+rpc_transport_get_myaddr (rpc_transport_t *this, char *peeraddr, int addrlen,
+ struct sockaddr *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);
+}
+
+int32_t
+rpc_transport_get_peername (rpc_transport_t *this, char *hostname, int hostlen)
+{
+ if (!this)
+ return -1;
+ return this->ops->get_peername (this, hostname, hostlen);
+}
+
+int32_t
+rpc_transport_get_peeraddr (rpc_transport_t *this, char *peeraddr, int addrlen,
+ struct sockaddr *sa, size_t salen)
+{
+ if (!this)
+ return -1;
+ return this->ops->get_peeraddr (this, peeraddr, addrlen, sa, salen);
+}
+
+void
+rpc_transport_pollin_destroy (rpc_transport_pollin_t *pollin)
+{
+ if (!pollin) {
+ goto out;
+ }
+
+ if (pollin->vectored) {
+ if (pollin->data.vector.iobuf1) {
+ iobuf_unref (pollin->data.vector.iobuf1);
+ }
+
+ if (pollin->data.vector.iobuf2) {
+ iobuf_unref (pollin->data.vector.iobuf2);
+ }
+ } else {
+ if (pollin->data.simple.iobuf) {
+ iobuf_unref (pollin->data.simple.iobuf);
+ }
+ }
+
+ if (pollin->private) {
+ /* */
+ GF_FREE (pollin->private);
+ }
+
+ GF_FREE (pollin);
+out:
+ return;
+}
+
+
+rpc_transport_pollin_t *
+rpc_transport_pollin_alloc (rpc_transport_t *this, struct iobuf *iobuf,
+ size_t size, struct iobuf *vectored_buf,
+ size_t vectored_size, 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;
+ }
+
+ if (vectored_buf) {
+ msg->vectored = 1;
+ msg->data.vector.iobuf1 = iobuf_ref (iobuf);
+ msg->data.vector.size1 = size;
+
+ msg->data.vector.iobuf2 = iobuf_ref (vectored_buf);
+ msg->data.vector.size2 = vectored_size;
+ } else {
+ msg->data.simple.iobuf = iobuf_ref (iobuf);
+ msg->data.simple.size = size;
+ }
+
+ msg->private = private;
+out:
+ 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)
+{
+ rpc_transport_pollin_t *msg = NULL;
+ int rpchdrlen = 0, proghdrlen = 0;
+ int progpayloadlen = 0;
+ char vectored = 0;
+ char *hdr = NULL, *progpayloadbuf = 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 (progpayload) {
+ vectored = 1;
+ progpayloadlen = iov_length (progpayload, progpayloadcount);
+ }
+
+ /* 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 (vectored) {
+ msg->data.vector.iobuf1 = iobuf_get (this->ctx->iobuf_pool);
+ if (!msg->data.vector.iobuf1) {
+ gf_log ("rpc_transport", GF_LOG_ERROR,
+ "out of memory");
+ goto err;
+ }
+
+ msg->data.vector.size1 = rpchdrlen + proghdrlen;
+ hdr = iobuf_ptr (msg->data.vector.iobuf1);
+
+ if (!is_request && rsp) {
+ msg->data.vector.iobuf2 = rsp->rspbuf;
+ progpayloadbuf = rsp->rspvec->iov_base;
+ } else {
+ msg->data.vector.iobuf2 = iobuf_get (this->ctx->iobuf_pool);
+ if (!msg->data.vector.iobuf2) {
+ gf_log ("rpc_transport", GF_LOG_ERROR,
+ "out of memory");
+ goto err;
+ }
+
+ progpayloadbuf = iobuf_ptr (msg->data.vector.iobuf2);
+ }
+ msg->data.vector.size2 = progpayloadlen;
+ } else {
+ if (!is_request && rsp) {
+ /* FIXME: Assuming rspvec contains only one vector */
+ hdr = rsp->rspvec->iov_base;
+ msg->data.simple.iobuf = rsp->rspbuf;
+ } else {
+ msg->data.simple.iobuf = iobuf_get (this->ctx->iobuf_pool);
+ if (!msg->data.simple.iobuf) {
+ gf_log ("rpc_transport", GF_LOG_ERROR,
+ "out of memory");
+ goto err;
+ }
+
+ hdr = iobuf_ptr (msg->data.simple.iobuf);
+ }
+
+ msg->data.simple.size = rpchdrlen + proghdrlen;
+ }
+
+ iov_unload (hdr, rpchdr, rpchdrcount);
+ hdr += rpchdrlen;
+ iov_unload (hdr, proghdr, proghdrcount);
+
+ if (progpayload) {
+ iov_unload (progpayloadbuf, progpayload,
+ progpayloadcount);
+ }
+
+ if (is_request) {
+ msg->private = rsp;
+ }
+ return msg;
+err:
+ if (msg) {
+ rpc_transport_pollin_destroy (msg);
+ }
+
+ return NULL;
+}
+
+
+rpc_transport_handover_t *
+rpc_transport_handover_alloc (rpc_transport_pollin_t *pollin)
+{
+ rpc_transport_handover_t *msg = NULL;
+
+ msg = GF_CALLOC (1, sizeof (*msg), gf_common_mt_rpc_trans_handover_t);
+ if (!msg) {
+ gf_log ("rpc_transport", GF_LOG_ERROR, "out of memory");
+ goto out;
+ }
+
+ msg->pollin = pollin;
+ INIT_LIST_HEAD (&msg->list);
+out:
+ return msg;
+}
+
+
+void
+rpc_transport_handover_destroy (rpc_transport_handover_t *msg)
+{
+ if (!msg) {
+ goto out;
+ }
+
+ if (msg->pollin) {
+ rpc_transport_pollin_destroy (msg->pollin);
+ }
+
+ GF_FREE (msg);
+
+out:
+ return;
+}
+
+
+rpc_transport_t *
+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);
+ return_trans = trans;
+ return return_trans;
+
+fail:
+ if (trans) {
+ if (trans->name) {
+ GF_FREE (trans->name);
+ }
+
+ GF_FREE (trans);
+ }
+
+ if (name) {
+ GF_FREE (name);
+ }
+
+ if (vol_opt) {
+ GF_FREE (vol_opt);
+ }
+
+ return NULL;
+}
+
+
+int32_t
+rpc_transport_submit_request (rpc_transport_t *this, rpc_transport_req_t *req)
+{
+ int32_t ret = -1;
+ rpc_transport_t *peer_trans = NULL;
+ rpc_transport_pollin_t *pollin = NULL;
+ rpc_transport_handover_t *handover_msg = NULL;
+ rpc_transport_rsp_t *rsp = NULL;
+
+ if (this->peer_trans) {
+ peer_trans = this->peer_trans;
+
+ rsp = GF_CALLOC (1, sizeof (*rsp), gf_common_mt_rpc_trans_rsp_t);
+ if (!rsp) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ *rsp = req->rsp;
+
+ pollin = rpc_transport_same_process_pollin_alloc (this, req->msg.rpchdr,
+ req->msg.rpchdrcount,
+ req->msg.proghdr,
+ req->msg.proghdrcount,
+ req->msg.progpayload,
+ req->msg.progpayloadcount,
+ rsp, 1);
+ if (!pollin) {
+ GF_FREE (rsp);
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ handover_msg = rpc_transport_handover_alloc (pollin);
+ if (!handover_msg) {
+ rpc_transport_pollin_destroy (pollin);
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ pthread_mutex_lock (&peer_trans->handover.mutex);
+ {
+ list_add_tail (&handover_msg->list,
+ &peer_trans->handover.msgs);
+ pthread_cond_broadcast (&peer_trans->handover.cond);
+ }
+ pthread_mutex_unlock (&peer_trans->handover.mutex);
+
+ return 0;
+ }
+
+ GF_VALIDATE_OR_GOTO("rpc_transport", this, fail);
+ GF_VALIDATE_OR_GOTO("rpc_transport", this->ops, fail);
+
+ ret = this->ops->submit_request (this, req);
+fail:
+ return ret;
+}
+
+
+int32_t
+rpc_transport_submit_reply (rpc_transport_t *this, rpc_transport_reply_t *reply)
+{
+ int32_t ret = -1;
+ rpc_transport_t *peer_trans = NULL;
+ rpc_transport_pollin_t *pollin = NULL;
+ rpc_transport_handover_t *handover_msg = NULL;
+
+ if (this->peer_trans) {
+ peer_trans = this->peer_trans;
+
+ pollin = rpc_transport_same_process_pollin_alloc (this, reply->msg.rpchdr,
+ reply->msg.rpchdrcount,
+ reply->msg.proghdr,
+ reply->msg.proghdrcount,
+ reply->msg.progpayload,
+ reply->msg.progpayloadcount,
+ reply->private, 0);
+ if (!pollin) {
+ return -ENOMEM;
+ }
+
+ handover_msg = rpc_transport_handover_alloc (pollin);
+ if (!handover_msg) {
+ rpc_transport_pollin_destroy (pollin);
+ return -ENOMEM;
+ }
+
+ pthread_mutex_lock (&peer_trans->handover.mutex);
+ {
+ list_add_tail (&handover_msg->list,
+ &peer_trans->handover.msgs);
+ pthread_cond_broadcast (&peer_trans->handover.cond);
+ }
+ pthread_mutex_unlock (&peer_trans->handover.mutex);
+
+ return 0;
+ }
+
+ GF_VALIDATE_OR_GOTO("rpc_transport", this, fail);
+ GF_VALIDATE_OR_GOTO("rpc_transport", this->ops, fail);
+
+ ret = this->ops->submit_reply (this, reply);
+fail:
+ return ret;
+}
+
+
+int32_t
+rpc_transport_connect (rpc_transport_t *this)
+{
+ int ret = -1;
+
+ GF_VALIDATE_OR_GOTO("rpc_transport", this, fail);
+
+ ret = this->ops->connect (this);
+fail:
+ return ret;
+}
+
+
+int32_t
+rpc_transport_listen (rpc_transport_t *this)
+{
+ int ret = -1;
+
+ GF_VALIDATE_OR_GOTO("rpc_transport", this, fail);
+
+ ret = this->ops->listen (this);
+fail:
+ return ret;
+}
+
+
+int32_t
+rpc_transport_disconnect (rpc_transport_t *this)
+{
+ int32_t ret = -1;
+
+ GF_VALIDATE_OR_GOTO("rpc_transport", this, fail);
+
+ ret = this->ops->disconnect (this);
+fail:
+ return ret;
+}
+
+
+int32_t
+rpc_transport_destroy (rpc_transport_t *this)
+{
+ int32_t ret = -1;
+
+ GF_VALIDATE_OR_GOTO("rpc_transport", this, fail);
+
+ if (this->fini)
+ this->fini (this);
+ pthread_mutex_destroy (&this->lock);
+ GF_FREE (this);
+fail:
+ return ret;
+}
+
+
+rpc_transport_t *
+rpc_transport_ref (rpc_transport_t *this)
+{
+ rpc_transport_t *return_this = NULL;
+
+ GF_VALIDATE_OR_GOTO("rpc_transport", this, fail);
+
+ pthread_mutex_lock (&this->lock);
+ {
+ this->refcount ++;
+ }
+ pthread_mutex_unlock (&this->lock);
+
+ return_this = this;
+fail:
+ return return_this;
+}
+
+
+int32_t
+rpc_transport_unref (rpc_transport_t *this)
+{
+ int32_t refcount = 0;
+ int32_t ret = -1;
+
+ GF_VALIDATE_OR_GOTO("rpc_transport", this, fail);
+
+ pthread_mutex_lock (&this->lock);
+ {
+ refcount = --this->refcount;
+ }
+ pthread_mutex_unlock (&this->lock);
+
+ if (refcount == 0) {
+ /* xlator_notify (this->xl, GF_EVENT_RPC_TRANSPORT_CLEANUP,
+ this); */
+ rpc_transport_destroy (this);
+ }
+
+ ret = 0;
+fail:
+ return ret;
+}
+
+
+int32_t
+rpc_transport_notify (rpc_transport_t *this, rpc_transport_event_t event,
+ void *data, ...)
+{
+ int32_t ret = -1;
+
+ if (this == NULL) {
+ goto out;
+ }
+
+ //ret = this->notify (this, this->notify_data, event, data);
+ ret = this->notify (this, this->mydata, event, data);
+out:
+ return ret;
+}
+
+
+void *
+rpc_transport_peerproc (void *trans_data)
+{
+ rpc_transport_t *trans = NULL;
+ rpc_transport_handover_t *msg = NULL;
+
+ trans = trans_data;
+
+ while (1) {
+ pthread_mutex_lock (&trans->handover.mutex);
+ {
+ while (list_empty (&trans->handover.msgs))
+ pthread_cond_wait (&trans->handover.cond,
+ &trans->handover.mutex);
+
+ msg = list_entry (trans->handover.msgs.next,
+ rpc_transport_handover_t, list);
+
+ list_del_init (&msg->list);
+ }
+ pthread_mutex_unlock (&trans->handover.mutex);
+
+ rpc_transport_notify (trans, RPC_TRANSPORT_MSG_RECEIVED, msg->pollin);
+ rpc_transport_handover_destroy (msg);
+ }
+}
+
+
+int
+rpc_transport_setpeer (rpc_transport_t *trans, rpc_transport_t *peer_trans)
+{
+ trans->peer_trans = rpc_transport_ref (peer_trans);
+
+ INIT_LIST_HEAD (&trans->handover.msgs);
+ pthread_cond_init (&trans->handover.cond, NULL);
+ pthread_mutex_init (&trans->handover.mutex, NULL);
+ pthread_create (&trans->handover.thread, NULL,
+ rpc_transport_peerproc, trans);
+
+ peer_trans->peer_trans = rpc_transport_ref (trans);
+
+ INIT_LIST_HEAD (&peer_trans->handover.msgs);
+ pthread_cond_init (&peer_trans->handover.cond, NULL);
+ pthread_mutex_init (&peer_trans->handover.mutex, NULL);
+ pthread_create (&peer_trans->handover.thread, NULL,
+ rpc_transport_peerproc, peer_trans);
+
+ return 0;
+}
+
+
+inline int
+rpc_transport_register_notify (rpc_transport_t *trans,
+ rpc_transport_notify_t notify, void *mydata)
+{
+ int ret = -1;
+
+ if (trans == NULL) {
+ goto out;
+ }
+
+ trans->notify = notify;
+ trans->mydata = mydata;
+
+ ret = 0;
+out:
+ return ret;
+}
diff --git a/rpc/rpc-lib/src/rpc-transport.h b/rpc/rpc-lib/src/rpc-transport.h
new file mode 100644
index 00000000000..b3c7985e095
--- /dev/null
+++ b/rpc/rpc-lib/src/rpc-transport.h
@@ -0,0 +1,288 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __RPC_TRANSPORT_H__
+#define __RPC_TRANSPORT_H__
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include <inttypes.h>
+#include <rpc/rpc.h>
+#include <rpc/auth.h>
+#include <rpc/rpc_msg.h>
+
+/* Given the 4-byte fragment header, returns non-zero if this fragment
+ * is the last fragment for the RPC record being assemebled.
+ * 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.
+ */
+#define RPC_LASTFRAG(fraghdr) ((uint32_t)(fraghdr & 0x80000000U))
+
+/* Given the 4-byte fragment header, extracts the bits that contain
+ * the fragment size.
+ */
+#define RPC_FRAGSIZE(fraghdr) ((uint32_t)(fraghdr & 0x7fffffffU))
+
+#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_REPLY_STATUS_SIZE 4
+
+#define RPC_AUTH_FLAVOUR_N_LENGTH_SIZE 8
+
+#define RPC_ACCEPT_STATUS_LEN 4
+
+struct rpc_transport_ops;
+typedef struct rpc_transport rpc_transport_t;
+
+#include "dict.h"
+#include "compat.h"
+#include "rpcsvc-common.h"
+
+struct peer_info {
+ struct sockaddr_storage sockaddr;
+ socklen_t sockaddr_len;
+ char identifier[UNIX_PATH_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
+ * transport the number of bytes to read.
+ * This helps in reading large msgs, wherein
+ * the rpc actors might decide to place the
+ * actor's payload in new iobufs separate
+ * from the rpc header, proghdr and
+ * authentication information. glusterfs/nfs
+ * read and write actors are few examples
+ * that might beniefit from this. While
+ * 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_event_t;
+
+struct rpc_transport_msg {
+ struct iovec *rpchdr;
+ int rpchdrcount;
+ struct iovec *proghdr;
+ int proghdrcount;
+ struct iovec *progpayload;
+ int progpayloadcount;
+ struct iobref *iobref;
+};
+typedef struct rpc_transport_msg rpc_transport_msg_t;
+
+struct rpc_transport_rsp {
+ /* as of now, the entire rsp payload is read into rspbuf and hence
+ * rspcount is always set to one.
+ */
+ struct iovec *rspvec;
+ int rspcount;
+ struct iobuf *rspbuf;
+};
+typedef struct rpc_transport_rsp rpc_transport_rsp_t;
+
+struct rpc_transport_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;
+};
+typedef struct rpc_transport_reply rpc_transport_reply_t;
+
+struct rpc_request_info {
+ uint32_t xid;
+ int prognum;
+ int progver;
+ int procnum;
+ rpc_transport_rsp_t rsp;
+};
+typedef struct rpc_request_info rpc_request_info_t;
+
+
+struct rpc_transport_pollin {
+ union {
+ struct vectored {
+ struct iobuf *iobuf1;
+ size_t size1;
+ struct iobuf *iobuf2;
+ size_t size2;
+ } vector;
+ struct simple {
+ struct iobuf *iobuf;
+ size_t size;
+ } simple;
+ } data;
+ char vectored;
+ void *private;
+};
+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;
+ void *private;
+ void *xl_private;
+ 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;
+
+ rpc_transport_t *peer_trans;
+ struct {
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ pthread_t thread;
+ struct list_head msgs;
+ /* any request/reply will be transformed as pollin data on the
+ * peer, hence we are building up a pollin data even before
+ * handing it over to peer rpc_transport. In order to decide whether
+ * the pollin data is vectored or simple, we follow a simple
+ * algo i.e., if there is a progpayload in request/reply, its
+ * considered vectored, otherwise its a simple pollin data.
+ */
+ rpc_transport_pollin_t *msg;
+ } handover;
+};
+
+typedef struct {
+ rpc_transport_pollin_t *pollin;
+ struct list_head list;
+} rpc_transport_handover_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);
+ 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 *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 *sa,
+ socklen_t sasize);
+};
+
+
+int32_t
+rpc_transport_listen (rpc_transport_t *this);
+
+int32_t
+rpc_transport_connect (rpc_transport_t *this);
+
+int32_t
+rpc_transport_disconnect (rpc_transport_t *this);
+
+int32_t
+rpc_transport_notify (rpc_transport_t *this, rpc_transport_event_t event,
+ void *data, ...);
+
+int32_t
+rpc_transport_submit_request (rpc_transport_t *this, rpc_transport_req_t *req);
+
+int32_t
+rpc_transport_submit_reply (rpc_transport_t *this,
+ rpc_transport_reply_t *reply);
+
+int32_t
+rpc_transport_destroy (rpc_transport_t *this);
+
+rpc_transport_t *
+rpc_transport_load (glusterfs_ctx_t *ctx, dict_t *options, char *name);
+
+rpc_transport_t *
+rpc_transport_ref (rpc_transport_t *trans);
+
+int32_t
+rpc_transport_unref (rpc_transport_t *trans);
+
+int
+rpc_transport_setpeer (rpc_transport_t *trans, rpc_transport_t *trans_peer);
+
+int
+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);
+
+int32_t
+rpc_transport_get_peeraddr (rpc_transport_t *this, char *peeraddr, int addrlen,
+ struct sockaddr *sa, size_t salen);
+
+int32_t
+rpc_transport_get_myname (rpc_transport_t *this, char *hostname, int hostlen);
+
+int32_t
+rpc_transport_get_myaddr (rpc_transport_t *this, char *peeraddr, int addrlen,
+ struct sockaddr *sa, size_t salen);
+
+rpc_transport_pollin_t *
+rpc_transport_pollin_alloc (rpc_transport_t *this, struct iobuf *iobuf,
+ size_t iobuf_size, struct iobuf *vectoriob,
+ size_t vectoriob_size, void *private);
+void
+rpc_transport_pollin_destroy (rpc_transport_pollin_t *pollin);
+
+#endif /* __RPC_TRANSPORT_H__ */
diff --git a/rpc/rpc-lib/src/rpcsvc-auth.c b/rpc/rpc-lib/src/rpcsvc-auth.c
new file mode 100644
index 00000000000..fa039c38677
--- /dev/null
+++ b/rpc/rpc-lib/src/rpcsvc-auth.c
@@ -0,0 +1,409 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#include "rpcsvc.h"
+#include "logging.h"
+#include "dict.h"
+
+extern rpcsvc_auth_t *
+rpcsvc_auth_null_init (rpcsvc_t *svc, dict_t *options);
+
+extern rpcsvc_auth_t *
+rpcsvc_auth_unix_init (rpcsvc_t *svc, dict_t *options);
+
+extern rpcsvc_auth_t *
+rpcsvc_auth_glusterfs_init (rpcsvc_t *svc, dict_t *options);
+
+int
+rpcsvc_auth_add_initer (struct list_head *list, char *idfier,
+ rpcsvc_auth_initer_t init)
+{
+ struct rpcsvc_auth_list *new = NULL;
+
+ 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->init = init;
+ strcpy (new->name, idfier);
+ INIT_LIST_HEAD (&new->authlist);
+ list_add_tail (&new->authlist, list);
+ return 0;
+}
+
+
+
+int
+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;
+err:
+ return 0;
+}
+
+
+int
+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;
+ }
+
+ 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;
+}
+
+
+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;
+
+ 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 (!dict_get (options, "rpc-auth.auth-unix"))
+ ret = dict_set_str (options, "rpc-auth.auth-unix", "on");
+
+ if (!dict_get (options, "rpc-auth.auth-glusterfs"))
+ ret = dict_set_str (options, "rpc-auth.auth-glusterfs", "on");
+
+ 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;
+
+}
+
+int
+rpcsvc_auth_init (rpcsvc_t *svc, dict_t *options)
+{
+ int ret = -1;
+
+ if ((!svc) || (!options))
+ return -1;
+
+ 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;
+}
+
+
+rpcsvc_auth_t *
+__rpcsvc_auth_get_handler (rpcsvc_request_t *req)
+{
+ int ret = -1;
+ struct rpcsvc_auth_list *auth = NULL;
+ struct rpcsvc_auth_list *tmp = NULL;
+ rpcsvc_t *svc = NULL;
+
+ if (!req)
+ return NULL;
+
+ svc = rpcsvc_request_service (req);
+ if (!svc)
+ gf_log ("", 1, "something wrong, !svc");
+
+ if (list_empty (&svc->authschemes)) {
+ gf_log (GF_RPCSVC, GF_LOG_WARNING, "No authentication!");
+ ret = 0;
+ 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;
+}
+
+rpcsvc_auth_t *
+rpcsvc_auth_get_handler (rpcsvc_request_t *req)
+{
+ rpcsvc_auth_t *auth = NULL;
+
+ auth = __rpcsvc_auth_get_handler (req);
+ if (auth)
+ goto ret;
+
+ 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);
+ret:
+ return auth;
+}
+
+
+int
+rpcsvc_auth_request_init (rpcsvc_request_t *req)
+{
+ 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);
+
+err:
+ return ret;
+}
+
+
+int
+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;
+ }
+
+ auth = rpcsvc_auth_get_handler (req);
+ if (!auth) {
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG, "No auth handler found");
+ goto err;
+ }
+
+ if (auth->authops->authenticate)
+ ret = auth->authops->authenticate (req, auth->authprivate);
+
+err:
+ return ret;
+}
+
+
+int
+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;
+ }
+
+ 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;
+ }
+ }
+
+err:
+ return count;
+}
+
+
+gid_t *
+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];
+}
diff --git a/rpc/rpc-lib/src/rpcsvc-common.h b/rpc/rpc-lib/src/rpcsvc-common.h
new file mode 100644
index 00000000000..0b9d84cfdf0
--- /dev/null
+++ b/rpc/rpc-lib/src/rpcsvc-common.h
@@ -0,0 +1,83 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _RPCSVC_COMMON_H
+#define _RPCSVC_COMMON_H
+
+#include <pthread.h>
+#include "list.h"
+#include "compat.h"
+#include "glusterfs.h"
+#include "dict.h"
+
+typedef enum {
+ RPCSVC_EVENT_ACCEPT,
+ RPCSVC_EVENT_DISCONNECT,
+ 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);
+
+
+/* Contains global state required for all the RPC services.
+ */
+typedef struct rpcsvc_state {
+
+ /* 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;
+
+ /* Allow insecure ports. */
+ int allow_insecure;
+
+ glusterfs_ctx_t *ctx;
+
+ void *listener;
+
+ /* 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;
+
+ void *mydata; /* This is xlator */
+ rpcsvc_notify_t notifyfn;
+
+} rpcsvc_t;
+
+
+#endif /* #ifndef _RPCSVC_COMMON_H */
diff --git a/rpc/rpc-lib/src/rpcsvc.c b/rpc/rpc-lib/src/rpcsvc.c
new file mode 100644
index 00000000000..e07cb8ee714
--- /dev/null
+++ b/rpc/rpc-lib/src/rpcsvc.c
@@ -0,0 +1,2015 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#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 "xdr-rpc.h"
+#include "iobuf.h"
+#include "globals.h"
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <rpc/rpc.h>
+#include <rpc/pmap_clnt.h>
+#include <arpa/inet.h>
+#include <rpc/xdr.h>
+#include <fnmatch.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+
+#define rpcsvc_alloc_request(con, request) \
+ do { \
+ request = (rpcsvc_request_t *) mem_get ((con)->rxpool); \
+ memset (request, 0, sizeof (rpcsvc_request_t)); \
+ } while (0)
+
+
+int
+rpcsvc_conn_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;
+ }
+
+ addrtok = strtok_r (addrstr, ",", &svptr);
+ while (addrtok) {
+
+ ret = fnmatch (addrtok, clstr, FNM_CASEFOLD);
+ if (ret == 0)
+ goto err;
+
+ addrtok = strtok_r (NULL, ",", &svptr);
+ }
+
+ ret = -1;
+err:
+
+ return ret;
+}
+
+
+int
+rpcsvc_conn_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;
+
+ /* 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;
+
+ ret = rpcsvc_conn_peer_check_search (options, srchstr, clstr);
+ if (volname)
+ GF_FREE (srchstr);
+
+ if (ret == 0)
+ ret = RPCSVC_AUTH_ACCEPT;
+ else
+ ret = RPCSVC_AUTH_DONTCARE;
+out:
+ return ret;
+}
+
+int
+rpcsvc_conn_peer_check_reject (dict_t *options, char *volname, char *clstr)
+{
+ int ret = RPCSVC_AUTH_DONTCARE;
+ char *srchstr = NULL;
+ char generalrule[] = "rpc-auth.addr.reject";
+
+ if ((!options) || (!clstr))
+ return ret;
+
+ 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;
+
+ ret = rpcsvc_conn_peer_check_search (options, srchstr, clstr);
+ if (volname)
+ GF_FREE (srchstr);
+
+ if (ret == 0)
+ ret = RPCSVC_AUTH_REJECT;
+ else
+ ret = RPCSVC_AUTH_DONTCARE;
+out:
+ return ret;
+}
+
+
+/* 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)
+{
+ int final = RPCSVC_AUTH_REJECT;
+
+ /* 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;
+
+ return final;
+}
+
+
+/* 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)
+{
+ 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;
+ 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;
+}
+
+
+
+/* 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;
+}
+
+
+int
+rpcsvc_conn_peer_check_name (dict_t *options, char *volname,
+ rpcsvc_conn_t *conn)
+{
+ int ret = RPCSVC_AUTH_REJECT;
+ int aret = RPCSVC_AUTH_REJECT;
+ int rjret = RPCSVC_AUTH_REJECT;
+ char clstr[RPCSVC_PEER_STRLEN];
+
+ if (!conn)
+ return ret;
+
+ ret = rpcsvc_conn_peername (conn, 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;
+ }
+
+ aret = rpcsvc_conn_peer_check_allow (options, volname, clstr);
+ rjret = rpcsvc_conn_peer_check_reject (options, volname, clstr);
+
+ ret = rpcsvc_combine_allow_reject_volume_check (aret, rjret);
+
+err:
+ return ret;
+}
+
+
+int
+rpcsvc_conn_peer_check_addr (dict_t *options, char *volname,rpcsvc_conn_t *conn)
+{
+ int ret = RPCSVC_AUTH_REJECT;
+ int aret = RPCSVC_AUTH_DONTCARE;
+ int rjret = RPCSVC_AUTH_REJECT;
+ char clstr[RPCSVC_PEER_STRLEN];
+
+ if (!conn)
+ return ret;
+
+ ret = rpcsvc_conn_peeraddr (conn, 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_conn_peer_check_allow (options, volname, clstr);
+ rjret = rpcsvc_conn_peer_check_reject (options, volname, clstr);
+
+ ret = rpcsvc_combine_allow_reject_volume_check (aret, rjret);
+err:
+ return ret;
+}
+
+
+int
+rpcsvc_conn_check_volume_specific (dict_t *options, char *volname,
+ rpcsvc_conn_t *conn)
+{
+ 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) || (!conn))
+ 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);
+ }
+
+ /* 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_conn_peer_check_name (options, volname, conn);
+ addrchk = rpcsvc_conn_peer_check_addr (options, volname, conn);
+
+ if (namelookup)
+ ret = rpcsvc_combine_gen_spec_addr_checks (addrchk, namechk);
+ else
+ ret = addrchk;
+
+ return ret;
+}
+
+
+int
+rpcsvc_conn_check_volume_general (dict_t *options, rpcsvc_conn_t *conn)
+{
+ int addrchk = RPCSVC_AUTH_REJECT;
+ int namechk = RPCSVC_AUTH_REJECT;
+ gf_boolean_t namelookup = _gf_true;
+ char *namestr = NULL;
+ int ret = 0;
+
+ if ((!options) || (!conn))
+ 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);
+ }
+
+ /* 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_conn_peer_check_name (options, NULL, conn);
+ addrchk = rpcsvc_conn_peer_check_addr (options, NULL, conn);
+
+ if (namelookup)
+ ret = rpcsvc_combine_gen_spec_addr_checks (addrchk, namechk);
+ else
+ ret = addrchk;
+
+ return ret;
+}
+
+int
+rpcsvc_conn_peer_check (dict_t *options, char *volname, rpcsvc_conn_t *conn)
+{
+ int general_chk = RPCSVC_AUTH_REJECT;
+ int specific_chk = RPCSVC_AUTH_REJECT;
+
+ if ((!options) || (!volname) || (!conn))
+ return RPCSVC_AUTH_REJECT;
+
+ general_chk = rpcsvc_conn_check_volume_general (options, conn);
+ specific_chk = rpcsvc_conn_check_volume_specific (options, volname,
+ conn);
+
+ return rpcsvc_combine_gen_spec_volume_checks (general_chk,specific_chk);
+}
+
+
+char *
+rpcsvc_volume_allowed (dict_t *options, char *volname)
+{
+ char globalrule[] = "rpc-auth.addr.allow";
+ char *srchstr = NULL;
+ char *addrstr = NULL;
+ int ret = -1;
+
+ if ((!options) || (!volname))
+ 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;
+ }
+
+ if (!dict_get (options, srchstr)) {
+ GF_FREE (srchstr);
+ srchstr = globalrule;
+ ret = dict_get_str (options, srchstr, &addrstr);
+ } else
+ ret = dict_get_str (options, srchstr, &addrstr);
+
+out:
+ return addrstr;
+}
+
+
+
+/* Initialize the core of a connection */
+rpcsvc_conn_t *
+rpcsvc_conn_alloc (rpcsvc_t *svc, rpc_transport_t *trans)
+{
+ rpcsvc_conn_t *conn = NULL;
+ int ret = -1;
+ unsigned int poolcount = 0;
+
+ conn = GF_CALLOC (1, sizeof(*conn), gf_common_mt_rpcsvc_conn_t);
+ if (!conn) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "memory allocation failed");
+ return NULL;
+ }
+
+ conn->trans = trans;
+ conn->svc = svc;
+ poolcount = RPCSVC_POOLCOUNT_MULT * svc->memfactor;
+
+ gf_log (GF_RPCSVC, GF_LOG_TRACE, "rx pool: %d", poolcount);
+ conn->rxpool = mem_pool_new (rpcsvc_request_t, poolcount);
+ /* TODO: leak */
+ if (!conn->rxpool) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "mem pool allocation failed");
+ goto free_conn;
+ }
+
+ /* Cannot consider a connection connected unless the user of this
+ * connection decides it is ready to use. It is possible that we have
+ * to free this connection soon after. That free will not happpen
+ * unless the state is disconnected.
+ */
+ conn->connstate = RPCSVC_CONNSTATE_DISCONNECTED;
+ pthread_mutex_init (&conn->connlock, NULL);
+ conn->connref = 0;
+
+ ret = 0;
+
+free_conn:
+ if (ret == -1) {
+ GF_FREE (conn);
+ conn = NULL;
+ }
+
+ return conn;
+}
+
+int
+rpcsvc_notify (rpc_transport_t *trans, void *mydata,
+ rpc_transport_event_t event, void *data, ...);
+
+void
+rpcsvc_conn_state_init (rpcsvc_conn_t *conn)
+{
+ if (!conn)
+ return;
+
+ ++conn->connref;
+ conn->connstate = RPCSVC_CONNSTATE_CONNECTED;
+}
+
+
+rpcsvc_notify_wrapper_t *
+rpcsvc_notify_wrapper_alloc (void)
+{
+ rpcsvc_notify_wrapper_t *wrapper = NULL;
+
+ 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;
+ }
+
+ INIT_LIST_HEAD (&wrapper->list);
+out:
+ return wrapper;
+}
+
+
+void
+rpcsvc_listener_destroy (rpcsvc_listener_t *listener)
+{
+ rpcsvc_t *svc = NULL;
+
+ if (!listener) {
+ goto out;
+ }
+
+ if (!listener->conn) {
+ goto listener_free;
+ }
+
+ svc = listener->conn->svc;
+ if (!svc) {
+ goto listener_free;
+ }
+
+ pthread_mutex_lock (&svc->rpclock);
+ {
+ list_del_init (&listener->list);
+ }
+ pthread_mutex_unlock (&svc->rpclock);
+
+listener_free:
+ GF_FREE (listener);
+out:
+ return;
+}
+
+
+void
+rpcsvc_conn_destroy (rpcsvc_conn_t *conn)
+{
+ rpcsvc_notify_wrapper_t *wrapper = NULL;
+ rpcsvc_event_t event = 0;
+ rpcsvc_listener_t *listener = NULL;
+ rpcsvc_t *svc = NULL;
+ rpcsvc_notify_wrapper_t *wrappers = NULL;
+ int i = 0, wrapper_count = 0;
+
+ if (!conn)
+ goto out;
+
+ mem_pool_destroy (conn->rxpool);
+
+ listener = conn->listener;
+ if (!listener)
+ goto out;
+
+ event = (listener->conn == conn) ? RPCSVC_EVENT_LISTENER_DEAD
+ : RPCSVC_EVENT_DISCONNECT;
+
+ svc = conn->svc;
+ if (!svc)
+ goto out;
+
+ 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, &conn->listener->list,
+ 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 (conn->svc, wrappers[i].data,
+ event, conn);
+ }
+
+ GF_FREE (wrappers);
+ }
+
+ if (listener->conn == conn) {
+ rpcsvc_listener_destroy (listener);
+ }
+
+ /* Need to destory record state, txlists etc. */
+ GF_FREE (conn);
+out:
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG, "Connection destroyed");
+}
+
+
+rpcsvc_conn_t *
+rpcsvc_conn_init (rpcsvc_t *svc, rpc_transport_t *trans)
+{
+ int ret = -1;
+ rpcsvc_conn_t *conn = NULL;
+
+ conn = rpcsvc_conn_alloc (svc, trans);
+ if (!conn) {
+ ret = -1;
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG, "cannot init a connection");
+ goto out;
+ }
+
+ ret = rpc_transport_register_notify (trans, rpcsvc_notify, conn);
+ if (ret == -1) {
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG, "registering notify failed");
+ rpcsvc_conn_destroy (conn);
+ conn = NULL;
+ goto out;
+ }
+
+ rpcsvc_conn_state_init (conn);
+
+out:
+ return conn;
+}
+
+
+int
+__rpcsvc_conn_unref (rpcsvc_conn_t *conn)
+{
+ --conn->connref;
+ return conn->connref;
+}
+
+
+void
+__rpcsvc_conn_deinit (rpcsvc_conn_t *conn)
+{
+ if (!conn)
+ return;
+
+ if (rpcsvc_conn_check_active (conn)) {
+ conn->connstate = RPCSVC_CONNSTATE_DISCONNECTED;
+ }
+
+ if (conn->trans) {
+ rpc_transport_disconnect (conn->trans);
+ conn->trans = NULL;
+ }
+}
+
+
+void
+rpcsvc_conn_deinit (rpcsvc_conn_t *conn)
+{
+ int ref = 0;
+
+ if (!conn)
+ return;
+
+ pthread_mutex_lock (&conn->connlock);
+ {
+ __rpcsvc_conn_deinit (conn);
+ ref = __rpcsvc_conn_unref (conn);
+ }
+ pthread_mutex_unlock (&conn->connlock);
+
+ if (ref == 0)
+ rpcsvc_conn_destroy (conn);
+
+ return;
+}
+
+
+void
+rpcsvc_conn_unref (rpcsvc_conn_t *conn)
+{
+ int ref = 0;
+ if (!conn)
+ return;
+
+ pthread_mutex_lock (&conn->connlock);
+ {
+ ref = __rpcsvc_conn_unref (conn);
+ }
+ pthread_mutex_unlock (&conn->connlock);
+
+ if (ref == 0) {
+ rpcsvc_conn_destroy (conn);
+ }
+}
+
+
+int
+rpcsvc_conn_active (rpcsvc_conn_t *conn)
+{
+ int status = 0;
+
+ if (!conn)
+ return 0;
+
+ pthread_mutex_lock (&conn->connlock);
+ {
+ status = rpcsvc_conn_check_active (conn);
+ }
+ pthread_mutex_unlock (&conn->connlock);
+
+ return status;
+}
+
+
+void
+rpcsvc_conn_ref (rpcsvc_conn_t *conn)
+{
+ if (!conn)
+ return;
+
+ pthread_mutex_lock (&conn->connlock);
+ {
+ ++conn->connref;
+ }
+ pthread_mutex_unlock (&conn->connlock);
+
+ return;
+}
+
+
+int
+rpcsvc_conn_privport_check (rpcsvc_t *svc, char *volname, rpcsvc_conn_t *conn)
+{
+ struct sockaddr_in sa;
+ 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) || (!conn))
+ return ret;
+
+ ret = rpcsvc_conn_peeraddr (conn, NULL, 0, (struct sockaddr *)&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;
+ }
+
+ port = ntohs (sa.sin_port);
+ 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.
+ */
+ 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");
+
+err:
+ return ret;
+}
+
+
+/* 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_conn_t *conn, rpcsvc_request_t *req)
+{
+ rpcsvc_program_t *program = NULL;
+ int err = SYSTEM_ERR;
+ rpcsvc_actor_t *actor = NULL;
+ rpcsvc_t *svc = NULL;
+ char found = 0;
+
+ if ((!conn) || (!req))
+ goto err;
+
+ svc = conn->svc;
+ pthread_mutex_lock (&svc->rpclock);
+ {
+ list_for_each_entry (program, &svc->programs, program) {
+ if (program->prognum == req->prognum) {
+ err = PROG_MISMATCH;
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+
+ err = SUCCESS;
+ gf_log (GF_RPCSVC, GF_LOG_TRACE, "Actor found: %s - %s",
+ program->progname, actor->procname);
+err:
+ if (req)
+ req->rpc_err = err;
+
+ return actor;
+}
+
+
+/* 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;
+
+ if (!listener) {
+ goto out;
+ }
+
+ list_for_each_entry (wrapper, &listener->list, list) {
+ if (wrapper->notify) {
+ wrapper->notify (listener->conn->svc,
+ wrapper->data,
+ event, data);
+ }
+ }
+
+out:
+ return;
+}
+
+
+int
+rpcsvc_accept (rpcsvc_conn_t *listen_conn, rpc_transport_t *new_trans)
+{
+ rpcsvc_listener_t *listener = NULL;
+ rpcsvc_conn_t *conn = NULL;
+ char clstr[RPCSVC_PEER_STRLEN];
+
+ listener = listen_conn->listener;
+ conn = rpcsvc_conn_init (listen_conn->svc, new_trans);
+ if (!conn) {
+ rpc_transport_disconnect (new_trans);
+ memset (clstr, 0, RPCSVC_PEER_STRLEN);
+ rpc_transport_get_peername (new_trans, clstr,
+ RPCSVC_PEER_STRLEN);
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG, "allocating connection for "
+ "new transport (%s) failed", clstr);
+ goto out;
+ }
+
+ conn->listener = listener;
+
+ //rpcsvc_program_notify (listener, RPCSVC_EVENT_ACCEPT, conn);
+out:
+ return 0;
+}
+
+
+void
+rpcsvc_request_destroy (rpcsvc_conn_t *conn, rpcsvc_request_t *req)
+{
+ if (!conn || !req) {
+ goto out;
+ }
+
+ if (req->recordiob) {
+ iobuf_unref (req->recordiob);
+ }
+
+ if (req->vectorediob) {
+ iobuf_unref (req->vectorediob);
+ }
+
+ mem_put (conn->rxpool, req);
+out:
+ return;
+}
+
+
+rpcsvc_request_t *
+rpcsvc_request_init (rpcsvc_conn_t *conn, struct rpc_msg *callmsg,
+ struct iovec progmsg, rpc_transport_pollin_t *msg,
+ rpcsvc_request_t *req)
+{
+ if ((!conn) || (!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->conn = conn;
+ req->msg[0] = progmsg;
+ if (msg->vectored) {
+ req->msg[1].iov_base = iobuf_ptr (msg->data.vector.iobuf2);
+ req->msg[1].iov_len = msg->data.vector.size2;
+
+ req->recordiob = iobuf_ref (msg->data.vector.iobuf1);
+ req->vectorediob = iobuf_ref (msg->data.vector.iobuf2);
+ } else {
+ req->recordiob = iobuf_ref (msg->data.simple.iobuf);
+ }
+
+ req->trans_private = msg->private;
+
+ INIT_LIST_HEAD (&req->txlist);
+ 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.
+ */
+ 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_request_init (req);
+ return req;
+}
+
+
+rpcsvc_request_t *
+rpcsvc_request_create (rpcsvc_conn_t *conn, 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 (!conn)
+ 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 (conn, req);
+ if (!req) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to alloc request");
+ goto err;
+ }
+
+ if (msg->vectored) {
+ msgbuf = iobuf_ptr (msg->data.vector.iobuf1);
+ msglen = msg->data.vector.size1;
+ } else {
+ msgbuf = iobuf_ptr (msg->data.simple.iobuf);
+ msglen = msg->data.simple.size;
+ }
+
+ ret = xdr_to_rpc_call (msgbuf, msglen, &rpcmsg, &progmsg,
+ req->cred.authdata,req->verf.authdata);
+
+ if (ret == -1) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "RPC call decoding failed");
+ rpcsvc_request_seterr (req, GARBAGE_ARGS);
+ goto err;
+ }
+
+ ret = -1;
+ rpcsvc_request_init (conn, &rpcmsg, progmsg, msg, req);
+
+ 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));
+
+ 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;
+ }
+
+ 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;
+ }
+
+
+ /* 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);
+ req = NULL;
+ }
+
+ return req;
+}
+
+
+int
+rpcsvc_handle_rpc_call (rpcsvc_conn_t *conn, rpc_transport_pollin_t *msg)
+{
+ rpcsvc_actor_t *actor = NULL;
+ rpcsvc_request_t *req = NULL;
+ int ret = -1;
+
+ if (!conn)
+ return -1;
+
+ req = rpcsvc_request_create (conn, msg);
+ if (!req)
+ goto err;
+
+ if (!rpcsvc_request_accepted (req))
+ goto err_reply;
+
+ actor = rpcsvc_program_actor (conn, req);
+ if (!actor)
+ goto err_reply;
+
+ if (actor) {
+ if (req->vectorediob) {
+ if (actor->vector_actor) {
+ rpcsvc_conn_ref (conn);
+ ret = actor->vector_actor (req,
+ req->vectorediob);
+ } 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) {
+ rpcsvc_conn_ref (req->conn);
+ /* Before going to xlator code, set the THIS properly */
+ THIS = conn->svc->mydata;
+ ret = actor->actor (req);
+ }
+ }
+
+err_reply:
+ if (ret == RPCSVC_ACTOR_ERROR)
+ ret = rpcsvc_error_reply (req);
+
+ /* No need to propagate error beyond this function since the reply
+ * has now been queued. */
+ ret = 0;
+err:
+ return ret;
+}
+
+
+int
+rpcsvc_notify (rpc_transport_t *trans, void *mydata,
+ rpc_transport_event_t event, void *data, ...)
+{
+ rpcsvc_conn_t *conn = NULL;
+ rpcsvc_t *svc = NULL;
+ int ret = -1;
+ rpc_transport_pollin_t *msg = NULL;
+ rpc_transport_t *new_trans = NULL;
+
+ conn = mydata;
+ if (conn == NULL) {
+ goto out;
+ }
+
+ svc = conn->svc;
+
+ switch (event) {
+ case RPC_TRANSPORT_ACCEPT:
+ new_trans = data;
+ ret = rpcsvc_accept (conn, new_trans);
+ break;
+
+ case RPC_TRANSPORT_DISCONNECT:
+ //rpcsvc_conn_deinit (conn);
+ ret = 0;
+ break;
+
+ case RPC_TRANSPORT_MSG_RECEIVED:
+ msg = data;
+ ret = rpcsvc_handle_rpc_call (conn, msg);
+ break;
+
+ case RPC_TRANSPORT_MSG_SENT:
+ 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;
+
+ case RPC_TRANSPORT_CLEANUP:
+ /* FIXME: think about this later */
+ 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;
+ }
+
+out:
+ return ret;
+}
+
+
+void
+rpcsvc_set_lastfrag (uint32_t *fragsize) {
+ (*fragsize) |= 0x80000000U;
+}
+
+void
+rpcsvc_set_frag_header_size (uint32_t size, char *haddr)
+{
+ size = htonl (size);
+ memcpy (haddr, &size, sizeof (size));
+}
+
+void
+rpcsvc_set_last_frag_header_size (uint32_t size, char *haddr)
+{
+ rpcsvc_set_lastfrag (&size);
+ rpcsvc_set_frag_header_size (size, haddr);
+}
+
+
+/* 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)
+{
+ 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 + RPCSVC_FRAGHDR_SIZE),
+ 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);
+
+ /* Since we're not spreading RPC records over mutiple fragments
+ * we just set this fragment as the first and last fragment for this
+ * record.
+ */
+ rpcsvc_set_last_frag_header_size (fraglen, recordstart);
+
+ /* Even though the RPC record starts at recordstart+RPCSVC_FRAGHDR_SIZE
+ * we need to transmit the record with the fragment header, which starts
+ * at recordstart.
+ */
+ 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 = RPCSVC_FRAGHDR_SIZE + replyhdr.iov_len;
+err:
+ return txrecord;
+}
+
+
+int
+rpcsvc_conn_submit (rpcsvc_conn_t *conn, struct iovec *hdrvec,
+ int hdrcount, 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 ((!conn) || (!hdrvec) || (!hdrvec->iov_base) || (!conn->trans)) {
+ 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;
+
+ /* Now that we have both the RPC and Program buffers in xdr format
+ * lets hand it to the transmission layer.
+ */
+ if (!rpcsvc_conn_check_active (conn)) {
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG, "Connection inactive");
+ goto out;
+ }
+
+ ret = rpc_transport_submit_reply (conn->trans, &reply);
+
+out:
+ return ret;
+}
+
+
+int
+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);
+ rpc_fill_empty_reply (reply, req->xid);
+
+ 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;
+}
+
+
+/* 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.
+ * msgvec is the buffer that points to the payload of the RPC program.
+ * This buffer can be NULL, if an RPC error reply is being constructed.
+ * The only reason it is needed here is that in case the buffer is provided,
+ * 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_conn_t *conn = NULL;
+ rpcsvc_t *svc = NULL;
+
+ if ((!req) || (!req->conn) || (!recbuf))
+ return NULL;
+
+ /* First, try to get a pointer into the buffer which the RPC
+ * layer can use.
+ */
+ conn = req->conn;
+ svc = rpcsvc_conn_rpcsvc (conn);
+ 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. */
+ rpcsvc_fill_reply (req, &reply);
+ 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;
+}
+
+
+/*
+ * The function to submit a program message to the RPC service.
+ * This message is added to the transmission queue of the
+ * conn.
+ *
+ * Program callers are not expected to use the msgvec->iov_base
+ * address for anything else.
+ * Nor are they expected to free it once this function returns.
+ * Once the transmission of the buffer is completed by the RPC service,
+ * the memory area as referenced through @msg will be unrefed.
+ * If a higher layer does not want anything to do with this iobuf
+ * after this function returns, it should call unref on it. For keeping
+ * it around till the transmission is actually complete, rpcsvc also refs it.
+ * *
+ * If this function returns an error by returning -1, the
+ * higher layer programs should assume that a disconnection happened
+ * and should know that the conn memory area as well as the req structure
+ * has been freed internally.
+ *
+ * For now, this function assumes that a submit is always called
+ * to send a new record. Later, if there is a situation where different
+ * buffers for the same record come from different sources, then we'll
+ * need to change this code to account for multiple submit calls adding
+ * the buffers into a single record.
+ */
+
+int
+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, };
+ rpcsvc_conn_t *conn = NULL;
+ size_t msglen = 0;
+ char new_iobref = 0;
+
+ if ((!req) || (!req->conn))
+ return -1;
+
+ conn = req->conn;
+
+ 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, &recordhdr);
+ if (!replyiob) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR,"Reply record creation failed");
+ goto disconnect_exit;
+ }
+
+ if (!iobref) {
+ iobref = iobref_new ();
+ if (!iobref) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "memory allocation "
+ "failed");
+ goto disconnect_exit;
+ }
+
+ new_iobref = 1;
+ }
+
+ iobref_add (iobref, replyiob);
+
+ ret = rpcsvc_conn_submit (conn, &recordhdr, 1, proghdr, hdrcount,
+ payload, payloadcount, iobref,
+ req->trans_private);
+
+ rpcsvc_request_destroy (conn, req);
+
+ if (ret == -1) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to submit message");
+ }
+
+disconnect_exit:
+ if (replyiob) {
+ iobuf_unref (replyiob);
+ }
+
+ if (new_iobref) {
+ iobref_unref (iobref);
+ }
+
+ /* Note that a unref is called everytime a reply is sent. This is in
+ * response to the ref that is performed on the conn when a request is
+ * handed to the RPC program.
+ *
+ * The catch, however, is that if the reply is an rpc error, we must
+ * not unref. This is because the ref only contains
+ * references for the actors to which the request was handed plus one
+ * reference maintained by the RPC layer. By unrefing for a case where
+ * no actor was called, we will be losing the ref held for the RPC
+ * layer.
+ */
+ if ((rpcsvc_request_accepted (req)) &&
+ (rpcsvc_request_accepted_success (req)))
+ rpcsvc_conn_unref (conn);
+
+ return ret;
+}
+
+
+int
+rpcsvc_error_reply (rpcsvc_request_t *req)
+{
+ struct iovec dummyvec = {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);
+}
+
+
+/* Register the program with the local portmapper service. */
+int
+rpcsvc_program_register_portmap (rpcsvc_program_t *newprog, rpcsvc_conn_t *conn)
+{
+ int ret = 0;
+ struct sockaddr_in sa = {0, };
+
+ if (!newprog || !conn->trans) {
+ goto out;
+ }
+
+ if (!(pmap_set (newprog->prognum, newprog->progver, IPPROTO_TCP,
+ sa.sin_port))) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "Could not register with"
+ " portmap");
+ goto out;
+ }
+
+ ret = 0;
+out:
+ return ret;
+}
+
+
+int
+rpcsvc_program_unregister_portmap (rpcsvc_program_t *prog)
+{
+ if (!prog)
+ return -1;
+
+ if (!(pmap_unset(prog->prognum, prog->progver))) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "Could not unregister with"
+ " portmap");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+rpcsvc_listener_t *
+rpcsvc_get_listener (rpcsvc_t *svc, uint16_t port)
+{
+ rpcsvc_listener_t *listener = NULL;
+ char found = 0;
+
+ if (!svc) {
+ goto out;
+ }
+
+ pthread_mutex_lock (&svc->rpclock);
+ {
+ list_for_each_entry (listener, &svc->listeners, list) {
+ if (((struct sockaddr_in *)&listener->sa)->sin_port
+ == port) {
+ found = 1;
+ break;
+ }
+ }
+ }
+ pthread_mutex_unlock (&svc->rpclock);
+
+ if (!found) {
+ listener = NULL;
+ }
+
+out:
+ 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.
+ * Since RPC programs should be using this function along with their payloads
+ * 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)
+{
+ if ((!req) || (!req->conn) || (!proghdr) || (!proghdr->iov_base))
+ return -1;
+
+ return rpcsvc_submit_generic (req, proghdr, hdrcount, payload,
+ payloadcount, iobref);
+}
+
+
+int
+rpcsvc_program_unregister (rpcsvc_t *svc, rpcsvc_program_t prog)
+{
+ int ret = -1;
+
+ if (!svc)
+ return -1;
+
+ /* TODO: De-init the listening connection for this program. */
+ ret = rpcsvc_program_unregister_portmap (&prog);
+ if (ret == -1) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "portmap unregistration of"
+ " program failed");
+ goto err;
+ }
+
+ ret = 0;
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG, "Program unregistered: %s, Num: %d,"
+ " Ver: %d, Port: %d", prog.progname, prog.prognum,
+ prog.progver, prog.progport);
+
+err:
+ 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);
+
+ return ret;
+}
+
+
+int
+rpcsvc_conn_peername (rpcsvc_conn_t *conn, char *hostname, int hostlen)
+{
+ if (!conn || !conn->trans)
+ return -1;
+
+ return rpc_transport_get_peername (conn->trans, hostname, hostlen);
+}
+
+
+int
+rpcsvc_conn_peeraddr (rpcsvc_conn_t *conn, char *addrstr, int addrlen,
+ struct sockaddr *sa, socklen_t sasize)
+{
+ if (!conn || !conn->trans)
+ return -1;
+
+ return rpc_transport_get_peeraddr(conn->trans, addrstr, addrlen, sa,
+ sasize);
+}
+
+
+rpcsvc_conn_t *
+rpcsvc_conn_create (rpcsvc_t *svc, dict_t *options, char *name)
+{
+ int ret = -1;
+ rpc_transport_t *trans = NULL;
+ rpcsvc_conn_t *conn = NULL;
+
+ 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 = rpc_transport_listen (trans);
+ if (ret == -1) {
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG,
+ "listening on transport failed");
+ goto out;
+ }
+
+ conn = rpcsvc_conn_init (svc, trans);
+ if (!conn) {
+ ret = -1;
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG,
+ "initializing connection for transport failed");
+ goto out;
+ }
+
+ ret = 0;
+out:
+ if ((ret == -1) && (trans)) {
+ rpc_transport_disconnect (trans);
+ }
+
+ return conn;
+}
+
+rpcsvc_listener_t *
+rpcsvc_listener_alloc (rpcsvc_t *svc, rpcsvc_conn_t *conn)
+{
+ rpcsvc_listener_t *listener = NULL;
+ int ret = -1;
+
+ 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;
+ }
+
+ /* TODO: unresolved symbol */
+ ret = rpc_transport_get_myaddr (conn->trans, NULL, 0,
+ &listener->sa,
+ sizeof (listener->sa));
+ ret = 0;
+ if (ret == -1) {
+ GF_FREE (listener);
+ listener = NULL;
+ goto out;
+ }
+
+ listener->conn = conn;
+
+ INIT_LIST_HEAD (&listener->list);
+
+ pthread_mutex_lock (&svc->rpclock);
+ {
+ list_add_tail (&listener->list, &svc->listeners);
+ }
+ pthread_mutex_unlock (&svc->rpclock);
+out:
+ return listener;
+}
+
+
+rpcsvc_listener_t *
+rpcsvc_create_listener (rpcsvc_t *svc, dict_t *options, char *name)
+{
+ rpcsvc_conn_t *conn = NULL;
+ rpcsvc_listener_t *listener = NULL;
+
+ if (!svc || !options) {
+ goto out;
+ }
+
+ conn = rpcsvc_conn_create (svc, options, name);
+ if (!conn) {
+ goto out;
+ }
+
+ listener = rpcsvc_listener_alloc (svc, conn);
+ if (listener == NULL) {
+ goto out;
+ }
+
+ conn->listener = listener;
+out:
+ if (!listener && conn) {
+ rpcsvc_conn_deinit (conn);
+ }
+
+ return listener;
+}
+
+
+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_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);
+
+out:
+ 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; /* this_xlator */
+ wrapper->data = mydata;
+ wrapper->notify = notify;
+
+ pthread_mutex_lock (&svc->rpclock);
+ {
+ list_add_tail (&wrapper->list, &svc->notify);
+ svc->notify_count++;
+ }
+ pthread_mutex_unlock (&svc->rpclock);
+
+ ret = 0;
+out:
+ return ret;
+}
+
+
+
+int
+rpcsvc_program_register (rpcsvc_t *svc, rpcsvc_program_t program)
+{
+ rpcsvc_program_t *newprog = NULL;
+ int ret = -1;
+ rpcsvc_listener_t *listener = NULL;
+
+ if (!svc)
+ return -1;
+
+ newprog = GF_CALLOC (1, sizeof(*newprog), gf_common_mt_rpcsvc_program_t);
+ if (!newprog)
+ return -1;
+
+ if (!program.actors)
+ goto free_prog;
+
+ memcpy (newprog, &program, sizeof (program));
+
+ listener = svc->listener;
+
+ ret = rpcsvc_program_register_portmap (newprog, listener->conn);
+ if (ret == -1) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "portmap registration of"
+ " program failed");
+ goto free_prog;
+ }
+
+ pthread_mutex_lock (&svc->rpclock);
+ {
+ list_add_tail (&newprog->program, &svc->programs);
+ }
+ pthread_mutex_unlock (&svc->rpclock);
+
+ 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);
+
+free_prog:
+ if (ret == -1) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "Program registration failed:"
+ " %s, Num: %d, Ver: %d, Port: %d", newprog->progname,
+ newprog->prognum, newprog->progver, newprog->progport);
+ GF_FREE (newprog);
+ }
+
+ return ret;
+}
+
+
+int
+rpcsvc_init_options (rpcsvc_t *svc, dict_t *options)
+{
+ svc->memfactor = RPCSVC_DEFAULT_MEMFACTOR;
+ return 0;
+}
+
+
+/* The global RPC service initializer.
+ */
+rpcsvc_t *
+rpcsvc_init (glusterfs_ctx_t *ctx, dict_t *options)
+{
+ rpcsvc_t *svc = NULL;
+ int ret = -1;
+ rpcsvc_listener_t *listener = NULL;
+
+ if ((!ctx) || (!options))
+ return NULL;
+
+ svc = GF_CALLOC (1, sizeof (*svc), gf_common_mt_rpcsvc_t);
+ if (!svc)
+ return NULL;
+
+ 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);
+
+ ret = rpcsvc_init_options (svc, options);
+ if (ret == -1) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "Failed to init options");
+ 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;
+ gf_log (GF_RPCSVC, GF_LOG_DEBUG, "RPC service inited.");
+
+ /* One listen port per RPC */
+ listener = rpcsvc_get_listener (svc, 0);
+ if (!listener) {
+ /* FIXME: listener is given the name of first program that
+ * creates it. This is not always correct. For eg., multiple
+ * programs can be listening on the same listener
+ * (glusterfs 3.1.0, 3.1.2, 3.1.3 etc).
+ */
+ listener = rpcsvc_create_listener (svc, options, "RPC");
+ if (!listener) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "creation of listener"
+ " for program failed");
+ goto free_svc;
+ }
+ }
+
+ if (!listener->conn) {
+ gf_log (GF_RPCSVC, GF_LOG_ERROR, "listener with no connection "
+ "found");
+ goto free_svc;
+ }
+
+ svc->listener = listener;
+
+ ret = 0;
+free_svc:
+ if (ret == -1) {
+ GF_FREE (svc);
+ svc = NULL;
+ }
+
+ return svc;
+}
diff --git a/rpc/rpc-lib/src/rpcsvc.h b/rpc/rpc-lib/src/rpcsvc.h
new file mode 100644
index 00000000000..10dc32698ad
--- /dev/null
+++ b/rpc/rpc-lib/src/rpcsvc.h
@@ -0,0 +1,582 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _RPCSVC_H
+#define _RPCSVC_H
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "event.h"
+#include "rpc-transport.h"
+#include "logging.h"
+#include "dict.h"
+#include "mem-pool.h"
+#include "list.h"
+#include "iobuf.h"
+#include "xdr-rpc.h"
+#include "glusterfs.h"
+#include "rpcsvc-common.h"
+
+#include <pthread.h>
+#include <sys/uio.h>
+#include <inttypes.h>
+#include "compat.h"
+
+#ifndef NGRPS
+#define NGRPS 16
+#endif /* !NGRPS */
+
+#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_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)
+
+/* RPC Record States */
+#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
+ * spread over multiple RPC fragments since that prevents us from determining
+ * 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_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
+ * read separately by the vectored reader. After the credentials comes the
+ * 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_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
+
+typedef struct rpcsvc_program rpcsvc_program_t;
+
+struct rpcsvc_notify_wrapper {
+ struct list_head list;
+ void *data;
+ rpcsvc_notify_t notify;
+};
+typedef struct rpcsvc_notify_wrapper rpcsvc_notify_wrapper_t;
+
+#define RPCSVC_CONNSTATE_CONNECTED 1
+#define RPCSVC_CONNSTATE_DISCONNECTED 2
+
+#define rpcsvc_conn_check_active(conn) ((conn)->connstate==RPCSVC_CONNSTATE_CONNECTED)
+
+typedef struct rpcsvc_request rpcsvc_request_t;
+
+typedef struct rpc_conn_state rpcsvc_conn_t;
+typedef struct {
+ rpcsvc_conn_t *conn;
+ struct sockaddr sa;
+ struct list_head list;
+} rpcsvc_listener_t;
+
+struct rpcsvc_config {
+ int max_block_size;
+};
+
+/* Contains the state for each connection that is used for transmitting and
+ * receiving RPC messages.
+ *
+ * Anything that can be accessed by a RPC program must be synced through
+ * connlock.
+ */
+struct rpc_conn_state {
+
+ /* Transport or connection state */
+ rpc_transport_t *trans;
+
+ rpcsvc_t *svc;
+ /* RPC Records and Fragments assembly state.
+ * All incoming data is staged here before being
+ * called a full RPC message.
+ */
+ /* rpcsvc_record_state_t rstate; */
+
+ /* It is possible that a client disconnects while
+ * the higher layer RPC service is busy in a call.
+ * In this case, we cannot just free the conn
+ * structure, since the higher layer service could
+ * still have a reference to it.
+ * The refcount avoids freeing until all references
+ * have been given up, although the connection is clos()ed at the first
+ * call to unref.
+ */
+ int connref;
+ pthread_mutex_t connlock;
+ int connstate;
+
+ /* Memory pool for rpcsvc_request_t */
+ struct mem_pool *rxpool;
+
+ /* The request which hasnt yet been handed to the RPC program because
+ * this request is being treated as a vector request and so needs some
+ * more data to be got from the network.
+ */
+ /* rpcsvc_request_t *vectoredreq; */
+ rpcsvc_listener_t *listener;
+};
+
+#define RPCSVC_CONNSTATE_CONNECTED 1
+#define RPCSVC_CONNSTATE_DISCONNECTED 2
+
+#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)
+
+/* 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. */
+ rpcsvc_conn_t *conn;
+
+ 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;
+
+ uint64_t lk_owner;
+ uint64_t gfs_id;
+
+ /* 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;
+
+
+ /* 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];
+
+ /* The full message buffer allocated to store the RPC headers.
+ * This buffer is ref'd when allocated why RPC svc and unref'd after
+ * the buffer is handed to the actor. That means if the actor or any
+ * higher layer wants to keep this buffer around, they too must ref it
+ * right after entering the program actor.
+ */
+ struct iobuf *recordiob;
+
+ /* iobuf to hold payload of calls like write. By storing large payloads
+ * starting from page-aligned addresses, performance increases while
+ * accessing the payload
+ */
+ struct iobuf *vectorediob;
+
+
+ /* 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;
+};
+
+#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_conn(req) (req)->conn
+#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_conn_rpcsvc(conn) ((conn)->svc)
+#define rpcsvc_request_service(req) (rpcsvc_conn_rpcsvc(rpcsvc_request_conn(req)))
+#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_iob(rq) ((rq)->recordiob)
+#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)
+
+/* Functor for every type of protocol actor
+ * must be defined like this.
+ *
+ * See the request structure for info on how to handle the request
+ * in the program actor.
+ *
+ * On successful santify checks inside the actor, it should return
+ * RPCSVC_ACTOR_SUCCESS.
+ * On an error, on which the RPC layer is expected to return a reply, the actor
+ * should return RPCSVC_ACTOR_ERROR.
+ *
+ */
+typedef int (*rpcsvc_actor) (rpcsvc_request_t *req);
+typedef int (*rpcsvc_vector_actor) (rpcsvc_request_t *req, struct iobuf *iob);
+typedef int (*rpcsvc_vector_sizer) (rpcsvc_request_t *req, ssize_t *readsize,
+ int *newiob);
+
+/* 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);
+
+/* 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);
+
+
+#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;
+
+} rpcsvc_actor_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 */
+#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;
+};
+
+
+/* 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);
+
+extern int
+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
+ * multiple programs and vice versa. There can also be a one to one mapping
+ * between a program and a listener. After registering a program with rpcsvc,
+ * the program has to be associated with a listener using
+ * rpcsvc_program_register_portmap.
+ */
+/* FIXME: can multiple programs registered on same port? */
+extern rpcsvc_listener_t *
+rpcsvc_create_listener (rpcsvc_t *svc, dict_t *options, char *name);
+
+extern int
+rpcsvc_program_register_portmap (rpcsvc_program_t *newprog,
+ rpcsvc_conn_t *conn);
+
+/* Inits the global RPC service data structures.
+ * Called in main.
+ */
+extern rpcsvc_t *
+rpcsvc_init (glusterfs_ctx_t *ctx, dict_t *options);
+
+int
+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);
+
+int
+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);
+
+#define RPCSVC_PEER_STRLEN 1024
+#define RPCSVC_AUTH_ACCEPT 1
+#define RPCSVC_AUTH_REJECT 2
+#define RPCSVC_AUTH_DONTCARE 3
+
+extern int
+rpcsvc_conn_peername (rpcsvc_conn_t *conn, char *hostname, int hostlen);
+
+extern int
+rpcsvc_conn_peeraddr (rpcsvc_conn_t *conn, char *addrstr, int addrlen,
+ struct sockaddr *returnsa, socklen_t sasize);
+
+extern int
+rpcsvc_conn_peer_check (dict_t *options, char *volname, rpcsvc_conn_t *conn);
+
+extern int
+rpcsvc_conn_privport_check (rpcsvc_t *svc, char *volname, rpcsvc_conn_t *conn);
+#define rpcsvc_request_seterr(req, err) (req)->rpc_err = err
+#define rpcsvc_request_set_autherr(req, err) (req)->auth_err = err
+
+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_conn) (rpcsvc_conn_t *conn, 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_conn conn_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;
+} rpcsvc_auth_t;
+
+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;
+};
+
+extern int
+rpcsvc_auth_request_init (rpcsvc_request_t *req);
+
+extern int
+rpcsvc_auth_init (rpcsvc_t *svc, dict_t *options);
+
+extern int
+rpcsvc_auth_conn_init (rpcsvc_conn_t *xprt);
+
+extern int
+rpcsvc_authenticate (rpcsvc_request_t *req);
+
+extern int
+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.
+ * Move to auth-unix specific source file when we need to modularize the
+ * 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);
+
+extern char *
+rpcsvc_volume_allowed (dict_t *options, char *volname);
+#endif
diff --git a/rpc/rpc-lib/src/xdr-common.h b/rpc/rpc-lib/src/xdr-common.h
new file mode 100644
index 00000000000..0c9ffb2f827
--- /dev/null
+++ b/rpc/rpc-lib/src/xdr-common.h
@@ -0,0 +1,68 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _XDR_COMMON_H_
+#define _XDR_COMMON_H_
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include <rpc/rpc.h>
+
+#if GF_DARWIN_HOST_OS
+#define xdr_u_quad_t xdr_u_int64_t
+#define xdr_quad_t xdr_int64_t
+#define xdr_uint32_t xdr_u_int32_t
+#endif
+
+struct auth_glusterfs_parms {
+ u_quad_t lk_owner;
+ u_int pid;
+ u_int uid;
+ u_int gid;
+ u_int ngrps;
+ u_int groups[16];
+};
+typedef struct auth_glusterfs_parms auth_glusterfs_parms;
+
+bool_t
+xdr_auth_glusterfs_parms (XDR *xdrs, auth_glusterfs_parms *objp);
+
+#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
+ * the address from which the NFS header starts.
+ */
+#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)
+
+/* 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_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
new file mode 100644
index 00000000000..088bddbf5b7
--- /dev/null
+++ b/rpc/rpc-lib/src/xdr-rpc.c
@@ -0,0 +1,193 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#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"
+
+/* 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 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;
+}
+
+
+bool_t
+true_func (XDR *s, caddr_t *a)
+{
+ return TRUE;
+}
+
+
+int
+rpc_fill_empty_reply (struct rpc_msg *reply, uint32_t xid)
+{
+ if (!reply)
+ return -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;
+
+ return 0;
+}
+
+int
+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
+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
+rpc_reply_to_xdr (struct rpc_msg *reply, char *dest, size_t len,
+ struct iovec *dst)
+{
+ XDR xdr;
+
+ if ((!dest) || (!reply) || (!dst))
+ return -1;
+
+ xdrmem_create (&xdr, dest, len, XDR_ENCODE);
+ if (!xdr_replymsg(&xdr, reply))
+ return -1;
+
+ dst->iov_base = dest;
+ dst->iov_len = xdr_encoded_length (xdr);
+
+ return 0;
+}
+
+
+int
+xdr_to_auth_unix_cred (char *msgbuf, int msglen, struct authunix_parms *au,
+ char *machname, gid_t *gids)
+{
+ XDR xdr;
+
+ if ((!msgbuf) || (!machname) || (!gids) || (!au))
+ return -1;
+
+ au->aup_machname = machname;
+#ifdef GF_DARWIN_HOST_OS
+ au->aup_gids = (int *)gids;
+#else
+ au->aup_gids = gids;
+#endif
+
+ xdrmem_create (&xdr, msgbuf, msglen, XDR_DECODE);
+
+ if (!xdr_authunix_parms (&xdr, au))
+ return -1;
+
+ return 0;
+}
diff --git a/rpc/rpc-lib/src/xdr-rpc.h b/rpc/rpc-lib/src/xdr-rpc.h
new file mode 100644
index 00000000000..4c0ee69b138
--- /dev/null
+++ b/rpc/rpc-lib/src/xdr-rpc.h
@@ -0,0 +1,74 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _XDR_RPC_H
+#define _XDR_RPC_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>
+
+/* 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);
+
+extern int
+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);
+
+extern int
+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);
+
+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)))
+
+#endif
diff --git a/rpc/rpc-lib/src/xdr-rpcclnt.c b/rpc/rpc-lib/src/xdr-rpcclnt.c
new file mode 100644
index 00000000000..98676ae61ab
--- /dev/null
+++ b/rpc/rpc-lib/src/xdr-rpcclnt.c
@@ -0,0 +1,131 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#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"
+
+/* 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 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;
+}
+
+#if 0
+bool_t
+true_func (XDR *s, caddr_t *a)
+{
+ return TRUE;
+}
+#endif
+
+int
+rpc_request_to_xdr (struct rpc_msg *request, char *dest, size_t len,
+ struct iovec *dst)
+{
+ XDR xdr;
+ int ret = -1;
+
+ if ((!dest) || (!request) || (!dst)) {
+ goto out;
+ }
+
+ xdrmem_create (&xdr, dest, len, XDR_ENCODE);
+ if (!xdr_callmsg (&xdr, request)) {
+ goto out;
+ }
+
+ dst->iov_base = dest;
+ dst->iov_len = xdr_encoded_length (xdr);
+
+ ret = 0;
+
+out:
+ return ret;
+}
+
+
+int
+auth_unix_cred_to_xdr (struct authunix_parms *au, char *dest, size_t len,
+ struct iovec *iov)
+{
+ XDR xdr;
+ int ret = -1;
+
+ if (!au || !dest || !iov) {
+ goto out;
+ }
+
+ xdrmem_create (&xdr, dest, len, XDR_DECODE);
+
+ if (!xdr_authunix_parms (&xdr, au)) {
+ goto out;
+ }
+
+ iov->iov_base = dest;
+ iov->iov_len = xdr_encoded_length (xdr);
+
+ ret = 0;
+out:
+ return ret;
+}
diff --git a/rpc/rpc-lib/src/xdr-rpcclnt.h b/rpc/rpc-lib/src/xdr-rpcclnt.h
new file mode 100644
index 00000000000..37c3046d330
--- /dev/null
+++ b/rpc/rpc-lib/src/xdr-rpcclnt.h
@@ -0,0 +1,51 @@
+/*
+ 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 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#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)
+
+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);
+int
+auth_unix_cred_to_xdr (struct authunix_parms *au, char *dest, size_t len,
+ struct iovec *iov);
+
+#endif
generated by cgit (git 2.34.1) at 2024-11-11 21:11:31 +0000