diff options
Diffstat (limited to 'xlators/protocol/client/src')
| -rw-r--r-- | xlators/protocol/client/src/Makefile.am | 16 | ||||
| -rw-r--r-- | xlators/protocol/client/src/client-protocol.c | 6671 | ||||
| -rw-r--r-- | xlators/protocol/client/src/client-protocol.h | 173 | ||||
| -rw-r--r-- | xlators/protocol/client/src/saved-frames.c | 178 | ||||
| -rw-r--r-- | xlators/protocol/client/src/saved-frames.h | 74 |
5 files changed, 7112 insertions, 0 deletions
diff --git a/xlators/protocol/client/src/Makefile.am b/xlators/protocol/client/src/Makefile.am new file mode 100644 index 00000000000..fb720942cc6 --- /dev/null +++ b/xlators/protocol/client/src/Makefile.am @@ -0,0 +1,16 @@ + +xlator_LTLIBRARIES = client.la +xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/protocol + +client_la_LDFLAGS = -module -avoidversion + +client_la_SOURCES = client-protocol.c saved-frames.c +client_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la + +noinst_HEADERS = client-protocol.h saved-frames.h + +AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall -D$(GF_HOST_OS) \ + -I$(top_srcdir)/libglusterfs/src -shared -nostartfiles $(GF_CFLAGS) + +CLEANFILES = + diff --git a/xlators/protocol/client/src/client-protocol.c b/xlators/protocol/client/src/client-protocol.c new file mode 100644 index 00000000000..5c93bd6f135 --- /dev/null +++ b/xlators/protocol/client/src/client-protocol.c @@ -0,0 +1,6671 @@ +/* + Copyright (c) 2006, 2007, 2008, 2009 Z RESEARCH, Inc. <http://www.zresearch.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 <inttypes.h> + + +#include "glusterfs.h" +#include "client-protocol.h" +#include "compat.h" +#include "dict.h" +#include "protocol.h" +#include "transport.h" +#include "xlator.h" +#include "logging.h" +#include "timer.h" +#include "defaults.h" +#include "compat.h" +#include "compat-errno.h" + +#include <sys/resource.h> +#include <inttypes.h> + +/* for default_*_cbk functions */ +#include "defaults.c" +#include "saved-frames.h" + + +int protocol_client_cleanup (transport_t *trans); +int protocol_client_interpret (xlator_t *this, transport_t *trans, + char *hdr_p, size_t hdrlen, + char *buf_p, size_t buflen); +int +protocol_client_xfer (call_frame_t *frame, xlator_t *this, transport_t *trans, + int type, int op, + gf_hdr_common_t *hdr, size_t hdrlen, + struct iovec *vector, int count, + dict_t *refs); + +static gf_op_t gf_fops[]; +static gf_op_t gf_mops[]; +static gf_op_t gf_cbks[]; + + +static ino_t +this_ino_get_from_inode (inode_t *inode, xlator_t *this) +{ + ino_t ino = 0; + int32_t ret = 0; + + GF_VALIDATE_OR_GOTO ("client", this, out); + GF_VALIDATE_OR_GOTO (this->name, inode, out); + + if (inode->ino == 1) { + ino = 1; + goto out; + } + + ret = inode_ctx_get (inode, this, &ino); + + if (inode->ino && ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "(%"PRId64"): failed to get remote inode number", + inode->ino); + } + +out: + return ino; +} + + +static ino_t +this_ino_get (loc_t *loc, xlator_t *this, int32_t which) +{ + ino_t ino = 0; + int32_t ret = 0; + inode_t *inode = NULL; + + GF_VALIDATE_OR_GOTO ("client", this, out); + + if (which == GF_CLIENT_INODE_SELF) { + inode = loc->inode; + } else if (which == GF_CLIENT_INODE_PARENT) { + inode = loc->parent; + } + GF_VALIDATE_OR_GOTO (this->name, inode, out); + + if (inode->ino == 1) { + ino = 1; + goto out; + } + + ret = inode_ctx_get (inode, this, &ino); + + if (inode->ino && ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "%s(%s - %"PRId64") failed to get remote inode number", + loc->path, + (which == GF_CLIENT_INODE_SELF? "self" : "parent"), + inode->ino); + } + +out: + return ino; +} + + +static void +this_ino_set (loc_t *loc, xlator_t *this, ino_t ino) +{ + ino_t old_ino = 0; + int32_t ret = -1; + inode_t *inode = NULL; + + GF_VALIDATE_OR_GOTO ("client", this, out); + + inode = loc->inode; + GF_VALIDATE_OR_GOTO (this->name, inode, out); + + ret = inode_ctx_get (inode, this, &old_ino); + + if (old_ino != ino) { + if (old_ino) + gf_log (this->name, GF_LOG_DEBUG, + "%s: inode number changed from %"PRId64" " + "to %"PRId64, + loc->path, old_ino, ino); + + ret = inode_ctx_put (inode, this, ino); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "%s (%"PRId64"): failed to set remote " + "inode number to inode ctx", + loc->path, ino); + } + } +out: + return; +} + + +static int +this_fd_get (fd_t *file, xlator_t *this, int64_t *remote_fd) +{ + int ret = 0; + int dict_ret = -1; + uint64_t tmp_fd = 0; + + GF_VALIDATE_OR_GOTO ("client", this, out); + GF_VALIDATE_OR_GOTO (this->name, file, out); + GF_VALIDATE_OR_GOTO (this->name, remote_fd, out); + + dict_ret = fd_ctx_get (file, this, &tmp_fd); + + if (dict_ret < 0) { + ret = -1; + } + *remote_fd = (int64_t)tmp_fd; +out: + return ret; +} + + +static void +this_fd_set (fd_t *file, xlator_t *this, loc_t *loc, int64_t fd) +{ + uint64_t old_fd = 0; + int32_t ret = -1; + + GF_VALIDATE_OR_GOTO ("client", this, out); + GF_VALIDATE_OR_GOTO (this->name, file, out); + + ret = fd_ctx_get (file, this, &old_fd); + if (ret >= 0) { + gf_log (this->name, GF_LOG_WARNING, + "%s (%"PRId64"): trying duplicate remote fd set. " + "%"PRId64" over-rides %"PRId64, + loc->path, loc->inode->ino, fd, old_fd); + } + + ret = fd_ctx_set (file, this, (uint64_t)fd); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "%s (%"PRId64"): failed to set remote fd", + loc->path, loc->inode->ino); + } +out: + return; +} + + +static int +client_local_wipe (client_local_t *local) +{ + if (local) { + loc_wipe (&local->loc); + + if (local->fd) + fd_unref (local->fd); + + free (local); + } + + 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 call_frame_t * +lookup_frame (transport_t *trans, int32_t op, int8_t type, int64_t callid) +{ + client_connection_t *conn = NULL; + call_frame_t *frame = NULL; + + conn = trans->xl_private; + + pthread_mutex_lock (&conn->lock); + { + frame = saved_frames_get (conn->saved_frames, + op, type, callid); + } + pthread_mutex_unlock (&conn->lock); + + return frame; +} + + +static void +call_bail (void *data) +{ + client_connection_t *conn = NULL; + struct timeval current; + int32_t bail_out = 0; + transport_t *trans = NULL; + + GF_VALIDATE_OR_GOTO("client", data, out); + trans = data; + + conn = trans->xl_private; + + gettimeofday (¤t, NULL); + pthread_mutex_lock (&conn->lock); + { + /* Chaining to get call-always functionality from + call-once timer */ + if (conn->timer) { + struct timeval timeout = {0,}; + gf_timer_cbk_t timer_cbk = conn->timer->cbk; + + timeout.tv_sec = 10; + timeout.tv_usec = 0; + + gf_timer_call_cancel (trans->xl->ctx, conn->timer); + conn->timer = gf_timer_call_after (trans->xl->ctx, + timeout, + timer_cbk, + trans); + if (conn->timer == NULL) { + gf_log (trans->xl->name, GF_LOG_DEBUG, + "Cannot create bailout timer"); + } + } + + if (((conn->saved_frames->count > 0) && + (RECEIVE_TIMEOUT(conn, current)) && + (SEND_TIMEOUT(conn, current)))) { + + struct tm last_sent_tm, last_received_tm; + char last_sent[32] = {0,}, last_received[32] = {0,}; + + bail_out = 1; + + localtime_r (&conn->last_sent.tv_sec, + &last_sent_tm); + localtime_r (&conn->last_received.tv_sec, + &last_received_tm); + + strftime (last_sent, 32, + "%Y-%m-%d %H:%M:%S", &last_sent_tm); + strftime (last_received, 32, + "%Y-%m-%d %H:%M:%S", &last_received_tm); + + gf_log (trans->xl->name, GF_LOG_ERROR, + "activating bail-out. pending frames = %d. " + "last sent = %s. last received = %s. " + "transport-timeout = %d", + (int32_t) conn->saved_frames->count, + last_sent, last_received, + conn->transport_timeout); + } + } + + if (bail_out) { + conn->ping_started = 0; + } + + pthread_mutex_unlock (&conn->lock); + + if (bail_out) { + gf_log (trans->xl->name, GF_LOG_CRITICAL, + "bailing transport"); + transport_disconnect (trans); + } +out: + return; +} + + +void +save_frame (transport_t *trans, call_frame_t *frame, + int32_t op, int8_t type, uint64_t callid) +{ + client_connection_t *conn = NULL; + struct timeval timeout = {0, }; + + + conn = trans->xl_private; + + saved_frames_put (conn->saved_frames, frame, op, type, callid); + + if (conn->timer == NULL) { + timeout.tv_sec = 10; + timeout.tv_usec = 0; + conn->timer = gf_timer_call_after (trans->xl->ctx, timeout, + call_bail, (void *) trans); + } +} + + +int +client_get_forgets (xlator_t *this, client_forget_t *forget) +{ + call_frame_t *fr = NULL; + gf_hdr_common_t *hdr = NULL; + size_t hdrlen = 0; + gf_cbk_forget_req_t *req = NULL; + int ret = -1; + client_conf_t *conf = NULL; + int count = 0; + int index = 0; + + conf = this->private; + + if (conf->forget.count > 0) { + count = conf->forget.count; + + hdrlen = gf_hdr_len (req, (count * sizeof (int64_t))); + hdr = gf_hdr_new (req, (count * sizeof (int64_t))); + GF_VALIDATE_OR_GOTO (this->name, hdr, out); + + req = gf_param (hdr); + + req->count = hton32 (count); + for (index = 0; index < count; index++) { + req->ino_array[index] = + hton64 (conf->forget.ino_array[index]); + } + + fr = create_frame (this, this->ctx->pool); + GF_VALIDATE_OR_GOTO (this->name, fr, out); + + conf->forget.frames_in_transit++; + + forget->frame = fr; + forget->hdr = hdr; + forget->hdrlen = hdrlen; + + ret = count; + + conf->forget.count = 0; + } + out: + return ret; +} + + +void +client_ping_timer_expired (void *data) +{ + xlator_t *this = NULL; + transport_t *trans = NULL; + client_conf_t *conf = NULL; + client_connection_t *conn = NULL; + + trans = data; + this = trans->xl; + conf = this->private; + conn = trans->xl_private; + + gf_log (this->name, GF_LOG_ERROR, + "ping timer expired! bailing transport"); + + pthread_mutex_lock (&conn->lock); + { + if (conn->ping_timer) + gf_timer_call_cancel (trans->xl->ctx, + conn->ping_timer); + + conn->ping_started = 0; + conn->ping_timer = NULL; + } + pthread_mutex_unlock (&conn->lock); + transport_disconnect (trans); +} + + +void +client_start_ping (void *data) +{ + xlator_t *this = NULL; + transport_t *trans = NULL; + client_conf_t *conf = NULL; + client_connection_t *conn = NULL; + int32_t ret = -1; + gf_hdr_common_t *hdr = NULL; + struct timeval timeout = {0, }; + call_frame_t *dummy_frame = NULL; + size_t hdrlen = -1; + gf_mop_ping_req_t *req = NULL; + + + trans = data; + this = trans->xl; + conf = this->private; + conn = trans->xl_private; + + pthread_mutex_lock (&conn->lock); + { + if ((conn->saved_frames->count == 0) || + !conn->connected) { + /* using goto looked ugly here, + * hence getting out this way */ + if (conn->ping_timer) + gf_timer_call_cancel (trans->xl->ctx, + conn->ping_timer); + conn->ping_timer = NULL; + conn->ping_started = 0; + /* unlock */ + pthread_mutex_unlock (&conn->lock); + return; + } + + if (conn->saved_frames->count < 0) { + gf_log (this->name, GF_LOG_ERROR, + "saved_frames->count is %"PRId64, + conn->saved_frames->count); + conn->saved_frames->count = 0; + } + timeout.tv_sec = conn->ping_timeout; + timeout.tv_usec = 0; + + conn->ping_timer = + gf_timer_call_after (trans->xl->ctx, timeout, + client_ping_timer_expired, + (void *) trans); + + if (conn->ping_timer == NULL) { + gf_log (this->name, GF_LOG_ERROR, + "unable to setup timer"); + } else + conn->ping_started = 1; + } + pthread_mutex_unlock (&conn->lock); + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + + dummy_frame = create_frame (this, this->ctx->pool); + dummy_frame->local = trans; + + ret = protocol_client_xfer (dummy_frame, this, trans, + GF_OP_TYPE_MOP_REQUEST, GF_MOP_PING, + hdr, hdrlen, NULL, 0, NULL); +} + + +int +client_ping_cbk (call_frame_t *frame, gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + xlator_t *this = NULL; + transport_t *trans = NULL; + client_conf_t *conf = NULL; + client_connection_t *conn = NULL; + struct timeval timeout = {0, }; + int op_ret = 0; + + trans = frame->local; frame->local = NULL; + this = trans->xl; + conf = this->private; + conn = trans->xl_private; + + op_ret = ntoh32 (hdr->rsp.op_ret); + + if (op_ret == -1) { + /* timer expired and transport bailed out */ + gf_log (this->name, GF_LOG_ERROR, "timer must have expired"); + goto out; + } + + pthread_mutex_lock (&conn->lock); + { + timeout.tv_sec = conn->ping_timeout; + timeout.tv_usec = 0; + + gf_timer_call_cancel (trans->xl->ctx, + conn->ping_timer); + + conn->ping_timer = + gf_timer_call_after (trans->xl->ctx, timeout, + client_start_ping, (void *)trans); + if (conn->ping_timer == NULL) + gf_log (this->name, GF_LOG_ERROR, + "gf_timer_call_after() returned NULL"); + } + pthread_mutex_unlock (&conn->lock); +out: + STACK_DESTROY (frame->root); + return 0; +} + + +int +protocol_client_xfer (call_frame_t *frame, xlator_t *this, transport_t *trans, + int type, int op, + gf_hdr_common_t *hdr, size_t hdrlen, + struct iovec *vector, int count, + dict_t *refs) +{ + client_conf_t *conf = NULL; + client_connection_t *conn = NULL; + uint64_t callid = 0; + int32_t ret = -1; + int start_ping = 0; + gf_hdr_common_t rsphdr = {0, }; + client_forget_t forget = {0, }; + uint8_t send_forget = 0; + + + conf = this->private; + + if (!trans) { + /* default to bulk op since it is 'safer' */ + trans = conf->transport[CHANNEL_BULK]; + } + conn = trans->xl_private; + + if (!((type == GF_OP_TYPE_CBK_REQUEST) && + (op == GF_CBK_FORGET))) + { + LOCK (&conf->forget.lock); + { + ret = client_get_forgets (this, &forget); + if (ret <= 0) + send_forget = 0; + else + send_forget = 1; + } + UNLOCK (&conf->forget.lock); + + if (send_forget) { + ret = protocol_client_xfer (forget.frame, this, NULL, + GF_OP_TYPE_CBK_REQUEST, + GF_CBK_FORGET, + forget.hdr, forget.hdrlen, + NULL, 0, NULL); + } + } + + pthread_mutex_lock (&conn->lock); + { + callid = ++conn->callid; + + hdr->callid = hton64 (callid); + hdr->op = hton32 (op); + hdr->type = hton32 (type); + + if (frame) { + hdr->req.uid = hton32 (frame->root->uid); + hdr->req.gid = hton32 (frame->root->gid); + hdr->req.pid = hton32 (frame->root->pid); + } + + if (conn->connected == 0) + transport_connect (trans); + + ret = -1; + + if (conn->connected || + ((type == GF_OP_TYPE_MOP_REQUEST) && + (op == GF_MOP_SETVOLUME))) { + ret = transport_submit (trans, (char *)hdr, hdrlen, + vector, count, refs); + } + + if ((ret >= 0) && frame) { + /* TODO: check this logic */ + gettimeofday (&conn->last_sent, NULL); + save_frame (trans, frame, op, type, callid); + } + + if (!conn->ping_started && (ret >= 0)) { + start_ping = 1; + } + } + pthread_mutex_unlock (&conn->lock); + + if (start_ping) + client_start_ping ((void *) trans); + + if (frame && (ret < 0)) { + rsphdr.op = op; + rsphdr.rsp.op_ret = hton32 (-1); + rsphdr.rsp.op_errno = hton32 (ENOTCONN); + + if (type == GF_OP_TYPE_FOP_REQUEST) { + rsphdr.type = GF_OP_TYPE_FOP_REPLY; + gf_fops[op] (frame, &rsphdr, sizeof (rsphdr), NULL, 0); + } else if (type == GF_OP_TYPE_MOP_REQUEST) { + rsphdr.type = GF_OP_TYPE_MOP_REPLY; + gf_mops[op] (frame, &rsphdr, sizeof (rsphdr), NULL, 0); + } else { + rsphdr.type = GF_OP_TYPE_CBK_REPLY; + gf_cbks[op] (frame, &rsphdr, sizeof (rsphdr), NULL, 0); + } + } + + return ret; +} + + + +/** + * client_create - create function for client protocol + * @frame: call frame + * @this: this translator structure + * @path: complete path to file + * @flags: create flags + * @mode: create mode + * + * external reference through client_protocol_xlator->fops->create + */ + +int +client_create (call_frame_t *frame, xlator_t *this, + loc_t *loc, int32_t flags, + mode_t mode, fd_t *fd) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_create_req_t *req = NULL; + size_t hdrlen = 0; + size_t pathlen = 0; + size_t baselen = 0; + int32_t ret = -1; + ino_t par = 0; + client_conf_t *conf = NULL; + client_local_t *local = NULL; + + + conf = this->private; + + if (conf->child) { + STACK_WIND (frame, default_create_cbk, + conf->child, + conf->child->fops->create, + loc, flags, mode, fd); + return 0; + } + + local = calloc (1, sizeof (*local)); + GF_VALIDATE_OR_GOTO(this->name, local, unwind); + + local->fd = fd_ref (fd); + loc_copy (&local->loc, loc); + + frame->local = local; + + pathlen = STRLEN_0(loc->path); + baselen = STRLEN_0(loc->name); + par = this_ino_get (loc, this, GF_CLIENT_INODE_PARENT); + + hdrlen = gf_hdr_len (req, pathlen + baselen); + hdr = gf_hdr_new (req, pathlen + baselen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->flags = hton32 (flags); + req->mode = hton32 (mode); + req->par = hton64 (par); + strcpy (req->path, loc->path); + strcpy (req->bname + pathlen, loc->name); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_CREATE, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, fd, NULL, NULL); + return 0; + +} + +/** + * client_open - open function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location of file + * @flags: open flags + * @mode: open modes + * + * external reference through client_protocol_xlator->fops->open + */ +int +client_open (call_frame_t *frame, xlator_t *this, + loc_t *loc, int32_t flags, fd_t *fd) +{ + int ret = -1; + gf_hdr_common_t *hdr = NULL; + size_t hdrlen = 0; + gf_fop_open_req_t *req = NULL; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = NULL; + client_local_t *local = NULL; + + conf = this->private; + if (conf->child) { + /* */ + STACK_WIND (frame, default_open_cbk, + conf->child, + conf->child->fops->open, + loc, flags, fd); + + return 0; + } + + local = calloc (1, sizeof (*local)); + GF_VALIDATE_OR_GOTO(this->name, local, unwind); + + local->fd = fd_ref (fd); + loc_copy (&local->loc, loc); + + frame->local = local; + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + req->flags = hton32 (flags); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_OPEN, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, fd); + return 0; + +} + + +/** + * client_stat - stat function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location + * + * external reference through client_protocol_xlator->fops->stat + */ +int32_t +client_stat (call_frame_t *frame, + xlator_t *this, + loc_t *loc) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_stat_req_t *req = NULL; + size_t hdrlen = -1; + int32_t ret = -1; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_stat_cbk, + conf->child, + conf->child->fops->stat, + loc); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_STAT, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + + +/** + * client_readlink - readlink function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location + * @size: + * + * external reference through client_protocol_xlator->fops->readlink + */ +int32_t +client_readlink (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + size_t size) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_readlink_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_readlink_cbk, + conf->child, + conf->child->fops->readlink, + loc, + size); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + req->size = hton32 (size); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_READLINK, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + + +/** + * client_mknod - mknod function for client protocol + * @frame: call frame + * @this: this translator structure + * @path: pathname of node + * @mode: + * @dev: + * + * external reference through client_protocol_xlator->fops->mknod + */ +int32_t +client_mknod (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + mode_t mode, + dev_t dev) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_mknod_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + size_t pathlen = 0; + size_t baselen = 0; + ino_t par = 0; + client_conf_t *conf = this->private; + client_local_t *local = NULL; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_mknod_cbk, + conf->child, + conf->child->fops->mknod, + loc, mode, dev); + + return 0; + } + + local = calloc (1, sizeof (*local)); + GF_VALIDATE_OR_GOTO(this->name, local, unwind); + + loc_copy (&local->loc, loc); + + frame->local = local; + + pathlen = STRLEN_0(loc->path); + baselen = STRLEN_0(loc->name); + par = this_ino_get (loc, this, GF_CLIENT_INODE_PARENT); + + hdrlen = gf_hdr_len (req, pathlen + baselen); + hdr = gf_hdr_new (req, pathlen + baselen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->par = hton64 (par); + req->mode = hton32 (mode); + req->dev = hton64 (dev); + strcpy (req->path, loc->path); + strcpy (req->bname + pathlen, loc->name); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_MKNOD, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, loc->inode, NULL); + return 0; + +} + + +/** + * client_mkdir - mkdir function for client protocol + * @frame: call frame + * @this: this translator structure + * @path: pathname of directory + * @mode: + * + * external reference through client_protocol_xlator->fops->mkdir + */ +int32_t +client_mkdir (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + mode_t mode) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_mkdir_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + size_t pathlen = 0; + size_t baselen = 0; + ino_t par = 0; + client_conf_t *conf = this->private; + client_local_t *local = NULL; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_mkdir_cbk, + conf->child, + conf->child->fops->mkdir, + loc, mode); + + return 0; + } + + local = calloc (1, sizeof (*local)); + GF_VALIDATE_OR_GOTO(this->name, local, unwind); + + loc_copy (&local->loc, loc); + + frame->local = local; + + pathlen = STRLEN_0(loc->path); + baselen = STRLEN_0(loc->name); + par = this_ino_get (loc, this, GF_CLIENT_INODE_PARENT); + + hdrlen = gf_hdr_len (req, pathlen + baselen); + hdr = gf_hdr_new (req, pathlen + baselen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->par = hton64 (par); + req->mode = hton32 (mode); + strcpy (req->path, loc->path); + strcpy (req->bname + pathlen, loc->name); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_MKDIR, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, loc->inode, NULL); + return 0; + +} + + + +/** + * client_unlink - unlink function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location of file + * + * external reference through client_protocol_xlator->fops->unlink + */ +int32_t +client_unlink (call_frame_t *frame, + xlator_t *this, + loc_t *loc) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_unlink_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + size_t pathlen = 0; + size_t baselen = 0; + ino_t par = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_unlink_cbk, + conf->child, + conf->child->fops->unlink, + loc); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + baselen = STRLEN_0(loc->name); + par = this_ino_get (loc, this, GF_CLIENT_INODE_PARENT); + + hdrlen = gf_hdr_len (req, pathlen + baselen); + hdr = gf_hdr_new (req, pathlen + baselen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->par = hton64 (par); + strcpy (req->path, loc->path); + strcpy (req->bname + pathlen, loc->name); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_UNLINK, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL); + return 0; + +} + +/** + * client_rmdir - rmdir function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location + * + * external reference through client_protocol_xlator->fops->rmdir + */ +int32_t +client_rmdir (call_frame_t *frame, + xlator_t *this, + loc_t *loc) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_rmdir_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + size_t pathlen = 0; + size_t baselen = 0; + ino_t par = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_rmdir_cbk, + conf->child, + conf->child->fops->rmdir, + loc); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + baselen = STRLEN_0(loc->name); + par = this_ino_get (loc, this, GF_CLIENT_INODE_PARENT); + + hdrlen = gf_hdr_len (req, pathlen + baselen); + hdr = gf_hdr_new (req, pathlen + baselen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->par = hton64 (par); + strcpy (req->path, loc->path); + strcpy (req->bname + pathlen, loc->name); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_RMDIR, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL); + return 0; + +} + + + +/** + * client_symlink - symlink function for client protocol + * @frame: call frame + * @this: this translator structure + * @oldpath: pathname of target + * @newpath: pathname of symlink + * + * external reference through client_protocol_xlator->fops->symlink + */ +int32_t +client_symlink (call_frame_t *frame, + xlator_t *this, + const char *linkname, + loc_t *loc) +{ + int ret = -1; + gf_hdr_common_t *hdr = NULL; + gf_fop_symlink_req_t *req = NULL; + size_t hdrlen = 0; + size_t pathlen = 0; + size_t newlen = 0; + size_t baselen = 0; + ino_t par = 0; + client_conf_t *conf = this->private; + client_local_t *local = NULL; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_symlink_cbk, + conf->child, + conf->child->fops->symlink, + linkname, loc); + + return 0; + } + + local = calloc (1, sizeof (*local)); + GF_VALIDATE_OR_GOTO(this->name, local, unwind); + + loc_copy (&local->loc, loc); + + frame->local = local; + + pathlen = STRLEN_0 (loc->path); + baselen = STRLEN_0 (loc->name); + newlen = STRLEN_0 (linkname); + par = this_ino_get (loc, this, GF_CLIENT_INODE_PARENT); + + hdrlen = gf_hdr_len (req, pathlen + baselen + newlen); + hdr = gf_hdr_new (req, pathlen + baselen + newlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->par = hton64 (par); + strcpy (req->path, loc->path); + strcpy (req->bname + pathlen, loc->name); + strcpy (req->linkname + pathlen + baselen, linkname); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_SYMLINK, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, loc->inode, NULL); + return 0; + +} + + +/** + * client_rename - rename function for client protocol + * @frame: call frame + * @this: this translator structure + * @oldloc: location of old pathname + * @newloc: location of new pathname + * + * external reference through client_protocol_xlator->fops->rename + */ +int32_t +client_rename (call_frame_t *frame, + xlator_t *this, + loc_t *oldloc, + loc_t *newloc) +{ + int ret = -1; + gf_hdr_common_t *hdr = NULL; + gf_fop_rename_req_t *req = NULL; + size_t hdrlen = 0; + size_t oldpathlen = 0; + size_t oldbaselen = 0; + size_t newpathlen = 0; + size_t newbaselen = 0; + ino_t oldpar = 0; + ino_t newpar = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_rename_cbk, + conf->child, + conf->child->fops->rename, + oldloc, newloc); + + return 0; + } + + oldpathlen = STRLEN_0(oldloc->path); + oldbaselen = STRLEN_0(oldloc->name); + newpathlen = STRLEN_0(newloc->path); + newbaselen = STRLEN_0(newloc->name); + oldpar = this_ino_get (oldloc, this, GF_CLIENT_INODE_PARENT); + newpar = this_ino_get (newloc, this, GF_CLIENT_INODE_PARENT); + + hdrlen = gf_hdr_len (req, (oldpathlen + oldbaselen + + newpathlen + newbaselen)); + hdr = gf_hdr_new (req, (oldpathlen + oldbaselen + + newpathlen + newbaselen)); + + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->oldpar = hton64 (oldpar); + req->newpar = hton64 (newpar); + + strcpy (req->oldpath, oldloc->path); + strcpy (req->oldbname + oldpathlen, oldloc->name); + strcpy (req->newpath + oldpathlen + oldbaselen, newloc->path); + strcpy (req->newbname + oldpathlen + oldbaselen + newpathlen, + newloc->name); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_RENAME, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + + + +/** + * client_link - link function for client protocol + * @frame: call frame + * @this: this translator structure + * @oldloc: location of old pathname + * @newpath: new pathname + * + * external reference through client_protocol_xlator->fops->link + */ + +int32_t +client_link (call_frame_t *frame, + xlator_t *this, + loc_t *oldloc, + loc_t *newloc) +{ + int ret = -1; + gf_hdr_common_t *hdr = NULL; + gf_fop_link_req_t *req = NULL; + size_t hdrlen = 0; + size_t oldpathlen = 0; + size_t newpathlen = 0; + size_t newbaselen = 0; + ino_t oldino = 0; + ino_t newpar = 0; + client_conf_t *conf = this->private; + client_local_t *local = NULL; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_link_cbk, + conf->child, + conf->child->fops->link, + oldloc, newloc); + + return 0; + } + + local = calloc (1, sizeof (*local)); + GF_VALIDATE_OR_GOTO(this->name, local, unwind); + + loc_copy (&local->loc, oldloc); + + frame->local = local; + + oldpathlen = STRLEN_0(oldloc->path); + newpathlen = STRLEN_0(newloc->path); + newbaselen = STRLEN_0(newloc->name); + oldino = this_ino_get (oldloc, this, GF_CLIENT_INODE_SELF); + newpar = this_ino_get (newloc, this, GF_CLIENT_INODE_PARENT); + + hdrlen = gf_hdr_len (req, oldpathlen + newpathlen + newbaselen); + hdr = gf_hdr_new (req, oldpathlen + newpathlen + newbaselen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + strcpy (req->oldpath, oldloc->path); + strcpy (req->newpath + oldpathlen, newloc->path); + strcpy (req->newbname + oldpathlen + newpathlen, newloc->name); + + req->oldino = hton64 (oldino); + req->newpar = hton64 (newpar); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_LINK, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, oldloc->inode, NULL); + return 0; +} + + + +/** + * client_chmod - chmod function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location + * @mode: + * + * external reference through client_protocol_xlator->fops->chmod + */ +int32_t +client_chmod (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + mode_t mode) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_chmod_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_chmod_cbk, + conf->child, + conf->child->fops->chmod, + loc, + mode); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + req->mode = hton32 (mode); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_CHMOD, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + + +/** + * client_chown - chown function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location + * @uid: uid of new owner + * @gid: gid of new owner group + * + * external reference through client_protocol_xlator->fops->chown + */ +int32_t +client_chown (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + uid_t uid, + gid_t gid) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_chown_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_chown_cbk, + conf->child, + conf->child->fops->chown, + loc, + uid, + gid); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + req->uid = hton32 (uid); + req->gid = hton32 (gid); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_CHOWN, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + +/** + * client_truncate - truncate function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location + * @offset: + * + * external reference through client_protocol_xlator->fops->truncate + */ +int32_t +client_truncate (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + off_t offset) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_truncate_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_truncate_cbk, + conf->child, + conf->child->fops->truncate, + loc, + offset); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + req->offset = hton64 (offset); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_TRUNCATE, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + + + +/** + * client_utimes - utimes function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location + * @tvp: + * + * external reference through client_protocol_xlator->fops->utimes + */ +int32_t +client_utimens (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + struct timespec *tvp) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_utimens_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_utimens_cbk, + conf->child, + conf->child->fops->utimens, + loc, + tvp); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + gf_timespec_from_timespec (req->tv, tvp); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_UTIMENS, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + + + +/** + * client_readv - readv function for client protocol + * @frame: call frame + * @this: this translator structure + * @fd: file descriptor structure + * @size: + * @offset: + * + * external reference through client_protocol_xlator->fops->readv + */ +int32_t +client_readv (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + size_t size, + off_t offset) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_read_req_t *req = NULL; + size_t hdrlen = 0; + int64_t remote_fd = -1; + int ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_readv_cbk, + conf->child, + conf->child->fops->readv, + fd, + size, + offset); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd, returning EBADFD", + fd->inode->ino); + STACK_UNWIND (frame, -1, EBADFD, NULL, 0, NULL); + return 0; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + req->size = hton32 (size); + req->offset = hton64 (offset); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_READ, + hdr, hdrlen, NULL, 0, NULL); + + return 0; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL, 0, NULL); + return 0; + +} + + +/** + * client_writev - writev function for client protocol + * @frame: call frame + * @this: this translator structure + * @fd: file descriptor structure + * @vector: + * @count: + * @offset: + * + * external reference through client_protocol_xlator->fops->writev + */ +int32_t +client_writev (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + struct iovec *vector, + int32_t count, + off_t offset) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_write_req_t *req = NULL; + size_t hdrlen = 0; + int64_t remote_fd = -1; + int ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_writev_cbk, + conf->child, + conf->child->fops->writev, + fd, + vector, + count, + offset); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + STACK_UNWIND (frame, -1, EBADFD, NULL); + return 0; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + req->size = hton32 (iov_length (vector, count)); + req->offset = hton64 (offset); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_WRITE, + hdr, hdrlen, vector, count, + frame->root->req_refs); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + + +/** + * client_statfs - statfs function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location + * + * external reference through client_protocol_xlator->fops->statfs + */ +int32_t +client_statfs (call_frame_t *frame, + xlator_t *this, + loc_t *loc) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_statfs_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_statfs_cbk, + conf->child, + conf->child->fops->statfs, + loc); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_STATFS, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + + +/** + * client_flush - flush function for client protocol + * @frame: call frame + * @this: this translator structure + * @fd: file descriptor structure + * + * external reference through client_protocol_xlator->fops->flush + */ + +int32_t +client_flush (call_frame_t *frame, + xlator_t *this, + fd_t *fd) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_flush_req_t *req = NULL; + size_t hdrlen = 0; + int64_t remote_fd = -1; + int ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_flush_cbk, + conf->child, + conf->child->fops->flush, + fd); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + STACK_UNWIND (frame, -1, EBADFD); + return 0; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_FLUSH, + hdr, hdrlen, NULL, 0, NULL); + + return 0; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL); + return 0; + +} + + + + +/** + * client_fsync - fsync function for client protocol + * @frame: call frame + * @this: this translator structure + * @fd: file descriptor structure + * @flags: + * + * external reference through client_protocol_xlator->fops->fsync + */ + +int32_t +client_fsync (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + int32_t flags) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_fsync_req_t *req = NULL; + size_t hdrlen = 0; + int64_t remote_fd = -1; + int32_t ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_fsync_cbk, + conf->child, + conf->child->fops->fsync, + fd, + flags); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + STACK_UNWIND(frame, -1, EBADFD); + return 0; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + req->data = hton32 (flags); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_FSYNC, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL); + return 0; + +} + +int32_t +client_xattrop (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + gf_xattrop_flags_t flags, + dict_t *dict) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_xattrop_req_t *req = NULL; + size_t hdrlen = 0; + size_t dict_len = 0; + int32_t ret = -1; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = NULL; + + GF_VALIDATE_OR_GOTO("client", this, unwind); + + conf = this->private; + if (conf->child) { + /* */ + STACK_WIND (frame, + default_xattrop_cbk, + conf->child, + conf->child->fops->xattrop, + loc, + flags, + dict); + + return 0; + } + + GF_VALIDATE_OR_GOTO(this->name, loc, unwind); + + if (dict) { + dict_len = dict_serialized_length (dict); + if (dict_len < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to get serialized length of dict(%p)", + dict); + goto unwind; + } + } + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, dict_len + pathlen); + hdr = gf_hdr_new (req, dict_len + pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->flags = hton32 (flags); + req->dict_len = hton32 (dict_len); + if (dict) { + ret = dict_serialize (dict, req->dict); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to serialize dictionary(%p)", + dict); + goto unwind; + } + } + req->ino = hton64 (ino); + strcpy (req->path + dict_len, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_XATTROP, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; +} + + +int32_t +client_fxattrop (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + gf_xattrop_flags_t flags, + dict_t *dict) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_fxattrop_req_t *req = NULL; + size_t hdrlen = 0; + size_t dict_len = 0; + int64_t remote_fd = -1; + int32_t ret = -1; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_fxattrop_cbk, + conf->child, + conf->child->fops->fxattrop, + fd, + flags, + dict); + + return 0; + } + + if (dict) { + dict_len = dict_serialized_length (dict); + if (dict_len < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to get serialized length of dict(%p)", + dict); + goto unwind; + } + } + + if (fd) { + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + goto unwind; + } + ino = fd->inode->ino; + } + + hdrlen = gf_hdr_len (req, dict_len); + hdr = gf_hdr_new (req, dict_len); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->flags = hton32 (flags); + req->dict_len = hton32 (dict_len); + if (dict) { + ret = dict_serialize (dict, req->dict); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to serialize dictionary(%p)", + dict); + goto unwind; + } + } + req->fd = hton64 (remote_fd); + req->ino = hton64 (ino); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_FXATTROP, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND (frame, -1, EBADFD, NULL); + return 0; + +} + + +/** + * client_setxattr - setxattr function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location + * @dict: dictionary which contains key:value to be set. + * @flags: + * + * external reference through client_protocol_xlator->fops->setxattr + */ +int32_t +client_setxattr (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + dict_t *dict, + int32_t flags) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_setxattr_req_t *req = NULL; + size_t hdrlen = 0; + size_t dict_len = 0; + int ret = -1; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_setxattr_cbk, + conf->child, + conf->child->fops->setxattr, + loc, + dict, + flags); + + return 0; + } + + dict_len = dict_serialized_length (dict); + if (dict_len < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to get serialized length of dict(%p)", + dict); + goto unwind; + } + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, dict_len + pathlen); + hdr = gf_hdr_new (req, dict_len + pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + req->flags = hton32 (flags); + req->dict_len = hton32 (dict_len); + + ret = dict_serialize (dict, req->dict); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to serialize dictionary(%p)", + dict); + goto unwind; + } + + strcpy (req->path + dict_len, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_SETXATTR, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL); + return 0; +} + +/** + * client_getxattr - getxattr function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location structure + * + * external reference through client_protocol_xlator->fops->getxattr + */ +int32_t +client_getxattr (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + const char *name) +{ + int ret = -1; + gf_hdr_common_t *hdr = NULL; + gf_fop_getxattr_req_t *req = NULL; + size_t hdrlen = 0; + size_t pathlen = 0; + size_t namelen = 0; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_getxattr_cbk, + conf->child, + conf->child->fops->getxattr, + loc, + name); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + if (name) + namelen = STRLEN_0(name); + + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen + namelen); + hdr = gf_hdr_new (req, pathlen + namelen); + GF_VALIDATE_OR_GOTO(frame->this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + req->namelen = hton32 (namelen); + strcpy (req->path, loc->path); + if (name) + strcpy (req->name + pathlen, name); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_GETXATTR, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; +} + +/** + * client_removexattr - removexattr function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location structure + * @name: + * + * external reference through client_protocol_xlator->fops->removexattr + */ +int32_t +client_removexattr (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + const char *name) +{ + int ret = -1; + gf_hdr_common_t *hdr = NULL; + gf_fop_removexattr_req_t *req = NULL; + size_t hdrlen = 0; + size_t namelen = 0; + size_t pathlen = 0; + ino_t ino = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_removexattr_cbk, + conf->child, + conf->child->fops->removexattr, + loc, + name); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + namelen = STRLEN_0(name); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen + namelen); + hdr = gf_hdr_new (req, pathlen + namelen); + GF_VALIDATE_OR_GOTO(frame->this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + strcpy (req->path, loc->path); + strcpy (req->name + pathlen, name); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_REMOVEXATTR, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL); + return 0; +} + + +/** + * client_opendir - opendir function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location structure + * + * external reference through client_protocol_xlator->fops->opendir + */ +int32_t +client_opendir (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + fd_t *fd) +{ + gf_fop_opendir_req_t *req = NULL; + gf_hdr_common_t *hdr = NULL; + size_t hdrlen = 0; + int ret = -1; + ino_t ino = 0; + size_t pathlen = 0; + client_conf_t *conf = this->private; + client_local_t *local = NULL; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_opendir_cbk, + conf->child, + conf->child->fops->opendir, + loc, fd); + + return 0; + } + + local = calloc (1, sizeof (*local)); + GF_VALIDATE_OR_GOTO(this->name, local, unwind); + + loc_copy (&local->loc, loc); + local->fd = fd_ref (fd); + + frame->local = local; + + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + pathlen = STRLEN_0(loc->path); + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(frame->this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_OPENDIR, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, fd); + return 0; + +} + + +/** + * client_readdir - readdir function for client protocol + * @frame: call frame + * @this: this translator structure + * + * external reference through client_protocol_xlator->fops->readdir + */ + +int32_t +client_getdents (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + size_t size, + off_t offset, + int32_t flag) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_getdents_req_t *req = NULL; + size_t hdrlen = 0; + int64_t remote_fd = -1; + int ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_getdents_cbk, + conf->child, + conf->child->fops->getdents, + fd, + size, + offset, + flag); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + STACK_UNWIND (frame, -1, EBADFD, NULL); + return 0; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(frame->this->name, hdr, unwind); + + req = gf_param (hdr); + GF_VALIDATE_OR_GOTO(frame->this->name, hdr, unwind); + + req->fd = hton64 (remote_fd); + req->size = hton32 (size); + req->offset = hton64 (offset); + req->flags = hton32 (flag); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_GETDENTS, + hdr, hdrlen, NULL, 0, NULL); + + return 0; +unwind: + STACK_UNWIND(frame, -1, EINVAL, NULL, 0); + return 0; +} + +/** + * client_readdir - readdir function for client protocol + * @frame: call frame + * @this: this translator structure + * + * external reference through client_protocol_xlator->fops->readdir + */ + +int32_t +client_readdir (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + size_t size, + off_t offset) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_readdir_req_t *req = NULL; + size_t hdrlen = 0; + int64_t remote_fd = -1; + int ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_readdir_cbk, + conf->child, + conf->child->fops->readdir, + fd, size, offset); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + goto unwind; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req->fd = hton64 (remote_fd); + req->size = hton32 (size); + req->offset = hton64 (offset); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_READDIR, + hdr, hdrlen, NULL, 0, NULL); + + return 0; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND (frame, -1, EBADFD, NULL); + return 0; + +} + + + +/** + * client_fsyncdir - fsyncdir function for client protocol + * @frame: call frame + * @this: this translator structure + * @fd: file descriptor structure + * @flags: + * + * external reference through client_protocol_xlator->fops->fsyncdir + */ + +int32_t +client_fsyncdir (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + int32_t flags) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_fsyncdir_req_t *req = NULL; + size_t hdrlen = 0; + int64_t remote_fd = -1; + int32_t ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_fsyncdir_cbk, + conf->child, + conf->child->fops->fsyncdir, + fd, + flags); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + goto unwind; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->data = hton32 (flags); + req->fd = hton64 (remote_fd); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_FSYNCDIR, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + STACK_UNWIND (frame, -1, EBADFD); + return 0; +} + + +/** + * client_access - access function for client protocol + * @frame: call frame + * @this: this translator structure + * @loc: location structure + * @mode: + * + * external reference through client_protocol_xlator->fops->access + */ +int32_t +client_access (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + int32_t mask) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_access_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + ino_t ino = 0; + size_t pathlen = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_access_cbk, + conf->child, + conf->child->fops->access, + loc, + mask); + + return 0; + } + + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + pathlen = STRLEN_0(loc->path); + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + req->mask = hton32 (mask); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_ACCESS, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL); + return 0; + +} + + +/** + * client_ftrucate - ftruncate function for client protocol + * @frame: call frame + * @this: this translator structure + * @fd: file descriptor structure + * @offset: offset to truncate to + * + * external reference through client_protocol_xlator->fops->ftruncate + */ + +int32_t +client_ftruncate (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + off_t offset) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_ftruncate_req_t *req = NULL; + int64_t remote_fd = -1; + size_t hdrlen = -1; + int ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_ftruncate_cbk, + conf->child, + conf->child->fops->ftruncate, + fd, + offset); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + STACK_UNWIND (frame, -1, EBADFD, NULL); + return 0; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + req->offset = hton64 (offset); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_FTRUNCATE, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + + +/** + * client_fstat - fstat function for client protocol + * @frame: call frame + * @this: this translator structure + * @fd: file descriptor structure + * + * external reference through client_protocol_xlator->fops->fstat + */ + +int32_t +client_fstat (call_frame_t *frame, + xlator_t *this, + fd_t *fd) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_fstat_req_t *req = NULL; + int64_t remote_fd = -1; + size_t hdrlen = -1; + int ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_fstat_cbk, + conf->child, + conf->child->fops->fstat, + fd); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + STACK_UNWIND (frame, -1, EBADFD, NULL); + return 0; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_FSTAT, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; + +} + + +/** + * client_lk - lk function for client protocol + * @frame: call frame + * @this: this translator structure + * @fd: file descriptor structure + * @cmd: lock command + * @lock: + * + * external reference through client_protocol_xlator->fops->lk + */ +int32_t +client_lk (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + int32_t cmd, + struct flock *flock) +{ + int ret = -1; + gf_hdr_common_t *hdr = NULL; + gf_fop_lk_req_t *req = NULL; + size_t hdrlen = 0; + int64_t remote_fd = -1; + int32_t gf_cmd = 0; + int32_t gf_type = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_lk_cbk, + conf->child, + conf->child->fops->lk, + fd, + cmd, + flock); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + STACK_UNWIND(frame, -1, EBADFD, NULL); + return 0; + } + + if (cmd == F_GETLK || cmd == F_GETLK64) + gf_cmd = GF_LK_GETLK; + else if (cmd == F_SETLK || cmd == F_SETLK64) + gf_cmd = GF_LK_SETLK; + else if (cmd == F_SETLKW || cmd == F_SETLKW64) + gf_cmd = GF_LK_SETLKW; + else { + gf_log (this->name, GF_LOG_ERROR, + "Unknown cmd (%d)!", gf_cmd); + goto unwind; + } + + switch (flock->l_type) { + case F_RDLCK: + gf_type = GF_LK_F_RDLCK; + break; + case F_WRLCK: + gf_type = GF_LK_F_WRLCK; + break; + case F_UNLCK: + gf_type = GF_LK_F_UNLCK; + break; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + req->cmd = hton32 (gf_cmd); + req->type = hton32 (gf_type); + gf_flock_from_flock (&req->flock, flock); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_LK, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; +} + + +/** + * client_inodelk - inodelk function for client protocol + * @frame: call frame + * @this: this translator structure + * @inode: inode structure + * @cmd: lock command + * @lock: flock struct + * + * external reference through client_protocol_xlator->fops->inodelk + */ +int32_t +client_inodelk (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + int32_t cmd, + struct flock *flock) +{ + int ret = -1; + gf_hdr_common_t *hdr = NULL; + gf_fop_inodelk_req_t *req = NULL; + size_t hdrlen = 0; + int32_t gf_cmd = 0; + int32_t gf_type = 0; + ino_t ino = 0; + size_t pathlen = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_inodelk_cbk, + conf->child, + conf->child->fops->inodelk, + loc, cmd, flock); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + if (cmd == F_GETLK || cmd == F_GETLK64) + gf_cmd = GF_LK_GETLK; + else if (cmd == F_SETLK || cmd == F_SETLK64) + gf_cmd = GF_LK_SETLK; + else if (cmd == F_SETLKW || cmd == F_SETLKW64) + gf_cmd = GF_LK_SETLKW; + else { + gf_log (this->name, GF_LOG_ERROR, + "Unknown cmd (%d)!", gf_cmd); + goto unwind; + } + + switch (flock->l_type) { + case F_RDLCK: + gf_type = GF_LK_F_RDLCK; + break; + case F_WRLCK: + gf_type = GF_LK_F_WRLCK; + break; + case F_UNLCK: + gf_type = GF_LK_F_UNLCK; + break; + } + + hdrlen = gf_hdr_len (req, pathlen); + hdr = gf_hdr_new (req, pathlen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + strcpy (req->path, loc->path); + + req->ino = hton64 (ino); + + req->cmd = hton32 (gf_cmd); + req->type = hton32 (gf_type); + gf_flock_from_flock (&req->flock, flock); + + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, + GF_FOP_INODELK, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL); + return 0; + +} + + +/** + * client_finodelk - finodelk function for client protocol + * @frame: call frame + * @this: this translator structure + * @inode: inode structure + * @cmd: lock command + * @lock: flock struct + * + * external reference through client_protocol_xlator->fops->finodelk + */ +int32_t +client_finodelk (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + int32_t cmd, + struct flock *flock) +{ + int ret = -1; + gf_hdr_common_t *hdr = NULL; + gf_fop_finodelk_req_t *req = NULL; + size_t hdrlen = 0; + int32_t gf_cmd = 0; + int32_t gf_type = 0; + int64_t remote_fd = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_finodelk_cbk, + conf->child, + conf->child->fops->finodelk, + fd, cmd, flock); + + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + STACK_UNWIND(frame, -1, EBADFD); + return 0; + } + + if (cmd == F_GETLK || cmd == F_GETLK64) + gf_cmd = GF_LK_GETLK; + else if (cmd == F_SETLK || cmd == F_SETLK64) + gf_cmd = GF_LK_SETLK; + else if (cmd == F_SETLKW || cmd == F_SETLKW64) + gf_cmd = GF_LK_SETLKW; + else { + gf_log (this->name, GF_LOG_ERROR, + "Unknown cmd (%d)!", gf_cmd); + goto unwind; + } + + switch (flock->l_type) { + case F_RDLCK: + gf_type = GF_LK_F_RDLCK; + break; + case F_WRLCK: + gf_type = GF_LK_F_WRLCK; + break; + case F_UNLCK: + gf_type = GF_LK_F_UNLCK; + break; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + + req->cmd = hton32 (gf_cmd); + req->type = hton32 (gf_type); + gf_flock_from_flock (&req->flock, flock); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, + GF_FOP_FINODELK, + hdr, hdrlen, NULL, 0, NULL); + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL); + return 0; +} + + +int32_t +client_entrylk (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + const char *name, + entrylk_cmd cmd, + entrylk_type type) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_entrylk_req_t *req = NULL; + size_t pathlen = 0; + size_t hdrlen = -1; + int ret = -1; + ino_t ino = 0; + size_t namelen = 0; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, default_entrylk_cbk, + conf->child, + conf->child->fops->entrylk, + loc, name, cmd, type); + + return 0; + } + + pathlen = STRLEN_0(loc->path); + if (name) + namelen = STRLEN_0(name); + + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + + hdrlen = gf_hdr_len (req, pathlen + namelen); + hdr = gf_hdr_new (req, pathlen + namelen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + req->namelen = hton64 (namelen); + + strcpy (req->path, loc->path); + if (name) + strcpy (req->name + pathlen, name); + + req->cmd = hton32 (cmd); + req->type = hton32 (type); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_ENTRYLK, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL); + return 0; + +} + + +int32_t +client_fentrylk (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + const char *name, + entrylk_cmd cmd, + entrylk_type type) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_fentrylk_req_t *req = NULL; + int64_t remote_fd = -1; + size_t namelen = 0; + size_t hdrlen = -1; + int ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, default_fentrylk_cbk, + conf->child, + conf->child->fops->fentrylk, + fd, name, cmd, type); + + return 0; + } + + if (name) + namelen = STRLEN_0(name); + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + STACK_UNWIND(frame, -1, EBADFD); + return 0; + } + + hdrlen = gf_hdr_len (req, namelen); + hdr = gf_hdr_new (req, namelen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + req->namelen = hton64 (namelen); + + if (name) + strcpy (req->name, name); + + req->cmd = hton32 (cmd); + req->type = hton32 (type); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_FENTRYLK, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + + STACK_UNWIND(frame, -1, EINVAL); + return 0; +} + + +/* + * client_lookup - lookup function for client protocol + * @frame: call frame + * @this: + * @loc: location + * + * not for external reference + */ +int32_t +client_lookup (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + dict_t *xattr_req) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_lookup_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + ino_t ino = 0; + ino_t par = 0; + size_t dictlen = 0; + size_t pathlen = 0; + size_t baselen = 0; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + client_conf_t *conf = this->private; + client_local_t *local = NULL; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_lookup_cbk, + conf->child, + conf->child->fops->lookup, + loc, + xattr_req); + + return 0; + } + + local = calloc (1, sizeof (*local)); + GF_VALIDATE_OR_GOTO(this->name, local, unwind); + + loc_copy (&local->loc, loc); + + frame->local = local; + + GF_VALIDATE_OR_GOTO (this->name, loc, unwind); + GF_VALIDATE_OR_GOTO (this->name, loc->path, unwind); + + if (loc->ino != 1) { + par = this_ino_get (loc, this, GF_CLIENT_INODE_PARENT); + GF_VALIDATE_OR_GOTO (this->name, loc->name, unwind); + baselen = STRLEN_0(loc->name); + } else { + ino = 1; + } + + pathlen = STRLEN_0(loc->path); + + if (xattr_req) { + dictlen = dict_serialized_length (xattr_req); + if (dictlen < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to get serialized length of dict(%p)", + xattr_req); + ret = dictlen; + goto unwind; + } + } + + hdrlen = gf_hdr_len (req, pathlen + baselen + dictlen); + hdr = gf_hdr_new (req, pathlen + baselen + dictlen); + GF_VALIDATE_OR_GOTO (this->name, hdr, unwind); + + req = gf_param (hdr); + + req->ino = hton64 (ino); + req->par = hton64 (par); + strcpy (req->path, loc->path); + if (baselen) + strcpy (req->path + pathlen, loc->name); + + if (dictlen) { + ret = dict_serialize (xattr_req, req->dict + baselen + pathlen); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to serialize dictionary(%p)", + xattr_req); + goto unwind; + } + } + + req->dictlen = hton32 (dictlen); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_LOOKUP, + hdr, hdrlen, NULL, 0, NULL); + return ret; + +unwind: + STACK_UNWIND (frame, op_ret, op_errno, loc->inode, NULL, NULL); + return ret; +} + + + +/* + * client_fchmod + * + */ +int32_t +client_fchmod (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + mode_t mode) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_fchmod_req_t *req = NULL; + int64_t remote_fd = -1; + size_t hdrlen = -1; + int ret = -1; + int32_t op_errno = EINVAL; + int32_t op_ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_fchmod_cbk, + conf->child, + conf->child->fops->fchmod, + fd, + mode); + + return 0; + } + + GF_VALIDATE_OR_GOTO (this->name, fd, unwind); + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + op_errno = EBADFD; + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + goto unwind; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO (this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + req->mode = hton32 (mode); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_FCHMOD, + hdr, hdrlen, NULL, 0, NULL); + + return 0; + +unwind: + STACK_UNWIND (frame, op_ret, op_errno, NULL); + return 0; +} + + +/* + * client_fchown - + * + * @frame: + * @this: + * @fd: + * @uid: + * @gid: + * + */ +int32_t +client_fchown (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + uid_t uid, + gid_t gid) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_fchown_req_t *req = NULL; + int64_t remote_fd = 0; + size_t hdrlen = -1; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + int32_t ret = -1; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_fchown_cbk, + conf->child, + conf->child->fops->fchown, + fd, + uid, + gid); + + return 0; + } + + GF_VALIDATE_OR_GOTO (this->name, fd, unwind); + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + op_errno = EBADFD; + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + goto unwind; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO (this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + req->uid = hton32 (uid); + req->gid = hton32 (gid); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_LOWLAT), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_FCHOWN, + hdr, hdrlen, NULL, 0, NULL); + + return 0; + +unwind: + STACK_UNWIND (frame, op_ret, op_errno, NULL); + return 0; + +} + +/** + * client_setdents - + */ +int32_t +client_setdents (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + int32_t flags, + dir_entry_t *entries, + int32_t count) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_setdents_req_t *req = NULL; + int64_t remote_fd = 0; + char *buffer = NULL; + char *ptr = NULL; + data_t *buf_data = NULL; + dict_t *reply_dict = NULL; + dir_entry_t *trav = NULL; + uint32_t len = 0; + int32_t buf_len = 0; + int32_t ret = -1; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + int32_t vec_count = 0; + size_t hdrlen = -1; + struct iovec vector[1]; + client_conf_t *conf = this->private; + + if (conf->child) { + /* */ + STACK_WIND (frame, + default_setdents_cbk, + conf->child, + conf->child->fops->setdents, + fd, + flags, + entries, + count); + + return 0; + } + + GF_VALIDATE_OR_GOTO (this->name, fd, unwind); + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd. returning EBADFD", + fd->inode->ino); + op_errno = EBADFD; + goto unwind; + } + + GF_VALIDATE_OR_GOTO (this->name, entries, unwind); + GF_VALIDATE_OR_GOTO (this->name, count, unwind); + + trav = entries->next; + while (trav) { + len += strlen (trav->name); + len += 1; + len += strlen (trav->link); + len += 1; + len += 256; // max possible for statbuf; + trav = trav->next; + } + buffer = CALLOC (1, len); + GF_VALIDATE_OR_GOTO (this->name, buffer, unwind); + + ptr = buffer; + + trav = entries->next; + while (trav) { + int32_t this_len = 0; + char *tmp_buf = NULL; + struct stat *stbuf = &trav->buf; + { + /* Convert the stat buf to string */ + uint64_t dev = stbuf->st_dev; + uint64_t ino = stbuf->st_ino; + uint32_t mode = stbuf->st_mode; + uint32_t nlink = stbuf->st_nlink; + uint32_t uid = stbuf->st_uid; + uint32_t gid = stbuf->st_gid; + uint64_t rdev = stbuf->st_rdev; + uint64_t size = stbuf->st_size; + uint32_t blksize = stbuf->st_blksize; + uint64_t blocks = stbuf->st_blocks; + + uint32_t atime = stbuf->st_atime; + uint32_t mtime = stbuf->st_mtime; + uint32_t ctime = stbuf->st_ctime; + + uint32_t atime_nsec = ST_ATIM_NSEC(stbuf); + uint32_t mtime_nsec = ST_MTIM_NSEC(stbuf); + uint32_t ctime_nsec = ST_CTIM_NSEC(stbuf); + + asprintf (&tmp_buf, + GF_STAT_PRINT_FMT_STR, + dev, + ino, + mode, + nlink, + uid, + gid, + rdev, + size, + blksize, + blocks, + atime, + atime_nsec, + mtime, + mtime_nsec, + ctime, + ctime_nsec); + } + this_len = sprintf (ptr, "%s/%s%s\n", + trav->name, + tmp_buf, + trav->link); + + FREE (tmp_buf); + trav = trav->next; + ptr += this_len; + } + buf_len = strlen (buffer); + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO (this->name, hdr, unwind); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + req->flags = hton32 (flags); + req->count = hton32 (count); + + { + buf_data = get_new_data (); + GF_VALIDATE_OR_GOTO (this->name, buf_data, unwind); + reply_dict = get_new_dict(); + GF_VALIDATE_OR_GOTO (this->name, reply_dict, unwind); + + buf_data->data = buffer; + buf_data->len = buf_len; + dict_set (reply_dict, NULL, buf_data); + frame->root->rsp_refs = dict_ref (reply_dict); + vector[0].iov_base = buffer; + vector[0].iov_len = buf_len; + vec_count = 1; + } + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_SETDENTS, + hdr, hdrlen, vector, vec_count, + frame->root->rsp_refs); + + return ret; +unwind: + STACK_UNWIND (frame, op_ret, op_errno); + return 0; +} + + +/* + * CBKs + */ +/* + * client_forget - forget function for client protocol + * @this: + * @inode: + * + * not for external reference + */ +int32_t +client_forget (xlator_t *this, + inode_t *inode) +{ + ino_t ino = 0; + client_conf_t *conf = NULL; + client_forget_t forget = {0,}; + uint8_t send_forget = 0; + int32_t ret = -1; + + GF_VALIDATE_OR_GOTO ("client", this, out); + conf = this->private; + + if (conf->child) { + /* */ + /* Yenu beda */ + return 0; + } + + GF_VALIDATE_OR_GOTO (this->name, inode, out); + ino = this_ino_get_from_inode (inode, this); + + LOCK (&conf->forget.lock); + { + conf->forget.ino_array[conf->forget.count++] = ino; + + if ((!conf->forget.frames_in_transit) || + (conf->forget.count >= CLIENT_PROTO_FORGET_LIMIT)) { + ret = client_get_forgets (this, &forget); + if (ret <= 0) + send_forget = 0; + else + send_forget = 1; + } + } + UNLOCK (&conf->forget.lock); + + if (send_forget) { + ret = protocol_client_xfer (forget.frame, this, + CLIENT_CHANNEL (this,CHANNEL_BULK), + GF_OP_TYPE_CBK_REQUEST, + GF_CBK_FORGET, + forget.hdr, forget.hdrlen, + NULL, 0, NULL); + } +out: + return 0; +} + +/** + * client_releasedir - releasedir function for client protocol + * @this: this translator structure + * @fd: file descriptor structure + * + * external reference through client_protocol_xlator->cbks->releasedir + */ + +int32_t +client_releasedir (xlator_t *this, fd_t *fd) +{ + call_frame_t *fr = NULL; + int32_t ret = -1; + int64_t remote_fd = 0; + char key[32] = {0,}; + gf_hdr_common_t *hdr = NULL; + size_t hdrlen = 0; + gf_cbk_releasedir_req_t *req = NULL; + client_conf_t *conf = NULL; + + + GF_VALIDATE_OR_GOTO ("client", this, out); + GF_VALIDATE_OR_GOTO (this->name, fd, out); + + conf = this->private; + if (conf->child) { + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1){ + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd.", + fd->inode->ino); + goto out; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO (this->name, hdr, out); + + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + + { + sprintf (key, "%p", fd); + + pthread_mutex_lock (&conf->mutex); + { + dict_del (conf->saved_fds, key); + } + pthread_mutex_unlock (&conf->mutex); + } + + fr = create_frame (this, this->ctx->pool); + GF_VALIDATE_OR_GOTO (this->name, fr, out); + + ret = protocol_client_xfer (fr, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_CBK_REQUEST, GF_CBK_RELEASEDIR, + hdr, hdrlen, NULL, 0, NULL); +out: + return ret; +} + + +/** + * client_release - release function for client protocol + * @this: this translator structure + * @fd: file descriptor structure + * + * external reference through client_protocol_xlator->cbks->release + * + */ +int +client_release (xlator_t *this, fd_t *fd) +{ + call_frame_t *fr = NULL; + int32_t ret = -1; + int64_t remote_fd = 0; + char key[32] = {0,}; + gf_hdr_common_t *hdr = NULL; + size_t hdrlen = 0; + gf_cbk_release_req_t *req = NULL; + client_conf_t *conf = NULL; + + GF_VALIDATE_OR_GOTO ("client", this, out); + GF_VALIDATE_OR_GOTO (this->name, fd, out); + + conf = this->private; + + if (conf->child) { + return 0; + } + + ret = this_fd_get (fd, this, &remote_fd); + if (ret == -1) { + gf_log (this->name, GF_LOG_DEBUG, + "(%"PRId64"): failed to get remote fd.", + fd->inode->ino); + goto out; + } + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO (this->name, hdr, out); + req = gf_param (hdr); + + req->fd = hton64 (remote_fd); + + { + sprintf (key, "%p", fd); + + pthread_mutex_lock (&conf->mutex); + { + dict_del (conf->saved_fds, key); + } + pthread_mutex_unlock (&conf->mutex); + } + + fr = create_frame (this, this->ctx->pool); + GF_VALIDATE_OR_GOTO (this->name, fr, out); + + ret = protocol_client_xfer (fr, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_CBK_REQUEST, GF_CBK_RELEASE, + hdr, hdrlen, NULL, 0, NULL); +out: + return ret; +} + +/* + * MGMT_OPS + */ + +/** + * client_stats - stats function for client protocol + * @frame: call frame + * @this: this translator structure + * @flags: + * + * external reference through client_protocol_xlator->mops->stats + */ + +int32_t +client_stats (call_frame_t *frame, + xlator_t *this, + int32_t flags) +{ + gf_hdr_common_t *hdr = NULL; + gf_mop_stats_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + client_conf_t *conf = NULL; + + GF_VALIDATE_OR_GOTO ("client", this, unwind); + + conf = this->private; + if (conf->child) { + /* */ + STACK_WIND (frame, + default_stats_cbk, + conf->child, + conf->child->mops->stats, + flags); + + return 0; + } + + + hdrlen = gf_hdr_len (req, 0); + hdr = gf_hdr_new (req, 0); + GF_VALIDATE_OR_GOTO (this->name, hdr, unwind); + + req = gf_param (hdr); + + req->flags = hton32 (flags); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_MOP_REQUEST, GF_MOP_STATS, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + STACK_UNWIND (frame, -1, EINVAL, NULL); + return 0; +} + + +/* Callbacks */ + +int32_t +client_fxattrop_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_xattrop_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t gf_errno = 0; + int32_t op_errno = 0; + int32_t dict_len = 0; + dict_t *dict = NULL; + int32_t ret = -1; + char *dictbuf = NULL; + + rsp = gf_param (hdr); + GF_VALIDATE_OR_GOTO(frame->this->name, rsp, fail); + + op_ret = ntoh32 (hdr->rsp.op_ret); + + if (op_ret >= 0) { + op_ret = -1; + dict_len = ntoh32 (rsp->dict_len); + + if (dict_len > 0) { + dictbuf = memdup (rsp->dict, dict_len); + GF_VALIDATE_OR_GOTO(frame->this->name, dictbuf, fail); + + dict = dict_new(); + GF_VALIDATE_OR_GOTO(frame->this->name, dict, fail); + + ret = dict_unserialize (dictbuf, dict_len, &dict); + if (ret < 0) { + gf_log (frame->this->name, GF_LOG_ERROR, + "failed to serialize dictionary(%p)", + dict); + op_errno = -ret; + goto fail; + } else { + dict->extra_free = dictbuf; + dictbuf = NULL; + } + } + op_ret = 0; + } + gf_errno = ntoh32 (hdr->rsp.op_errno); + op_errno = gf_error_to_errno (gf_errno); + +fail: + STACK_UNWIND (frame, op_ret, op_errno, dict); + + if (dictbuf) + free (dictbuf); + + if (dict) + dict_unref (dict); + + return 0; +} + +int32_t +client_xattrop_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_xattrop_rsp_t *rsp = NULL; + int32_t op_ret = -1; + int32_t gf_errno = EINVAL; + int32_t op_errno = 0; + int32_t dict_len = 0; + dict_t *dict = NULL; + int32_t ret = -1; + char *dictbuf = NULL; + + rsp = gf_param (hdr); + GF_VALIDATE_OR_GOTO(frame->this->name, rsp, fail); + + op_ret = ntoh32 (hdr->rsp.op_ret); + if (op_ret >= 0) { + op_ret = -1; + dict_len = ntoh32 (rsp->dict_len); + + if (dict_len > 0) { + dictbuf = memdup (rsp->dict, dict_len); + GF_VALIDATE_OR_GOTO(frame->this->name, dictbuf, fail); + + dict = get_new_dict(); + GF_VALIDATE_OR_GOTO(frame->this->name, dict, fail); + dict_ref (dict); + + ret = dict_unserialize (dictbuf, dict_len, &dict); + if (ret < 0) { + gf_log (frame->this->name, GF_LOG_ERROR, + "failed to serialize dictionary(%p)", + dict); + goto fail; + } else { + dict->extra_free = dictbuf; + dictbuf = NULL; + } + } + op_ret = 0; + } + gf_errno = ntoh32 (hdr->rsp.op_errno); + op_errno = gf_error_to_errno (gf_errno); + + +fail: + STACK_UNWIND (frame, op_ret, op_errno, dict); + + if (dictbuf) + free (dictbuf); + if (dict) + dict_unref (dict); + + return 0; +} + +/* + * client_chown_cbk - + * + * @frame: + * @args: + * + * not for external reference + */ +int32_t +client_fchown_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_fchown_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + + +/* + * client_fchmod_cbk + * + * @frame: + * @args: + * + * not for external reference + */ +int32_t +client_fchmod_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_fchmod_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + + +/* + * client_create_cbk - create callback function for client protocol + * @frame: call frame + * @args: arguments in dictionary + * + * not for external reference + */ + +int +client_create_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_create_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + fd_t *fd = NULL; + inode_t *inode = NULL; + struct stat stbuf = {0, }; + int64_t remote_fd = 0; + char key[32] = {0, }; + int32_t ret = -1; + client_local_t *local = NULL; + client_conf_t *conf = NULL; + + + local = frame->local; frame->local = NULL; + conf = frame->this->private; + fd = local->fd; + inode = local->loc.inode; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = ntoh32 (hdr->rsp.op_errno); + + if (op_ret >= 0) { + remote_fd = ntoh64 (rsp->fd); + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + if (op_ret >= 0) { + this_ino_set (&local->loc, frame->this, stbuf.st_ino); + this_fd_set (fd, frame->this, &local->loc, remote_fd); + + sprintf (key, "%p", fd); + + pthread_mutex_lock (&conf->mutex); + { + ret = dict_set_str (conf->saved_fds, key, ""); + } + pthread_mutex_unlock (&conf->mutex); + + if (ret < 0) { + free (key); + gf_log (frame->this->name, GF_LOG_ERROR, + "%s (%"PRId64"): failed to save remote fd", + local->loc.path, stbuf.st_ino); + } + } + + STACK_UNWIND (frame, op_ret, op_errno, fd, inode, &stbuf); + + client_local_wipe (local); + + return 0; +} + + +/* + * client_open_cbk - open callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_open_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + int32_t op_ret = -1; + int32_t op_errno = ENOTCONN; + fd_t *fd = NULL; + int64_t remote_fd = 0; + gf_fop_open_rsp_t *rsp = NULL; + char key[32] = {0,}; + int32_t ret = -1; + client_local_t *local = NULL; + client_conf_t *conf = NULL; + + + local = frame->local; frame->local = NULL; + conf = frame->this->private; + fd = local->fd; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = ntoh32 (hdr->rsp.op_errno); + + if (op_ret >= 0) { + remote_fd = ntoh64 (rsp->fd); + } + + if (op_ret >= 0) { + this_fd_set (fd, frame->this, &local->loc, remote_fd); + + sprintf (key, "%p", fd); + + pthread_mutex_lock (&conf->mutex); + { + ret = dict_set_str (conf->saved_fds, key, ""); + } + pthread_mutex_unlock (&conf->mutex); + + if (ret < 0) { + gf_log (frame->this->name, GF_LOG_ERROR, + "%s (%"PRId64"): failed to save remote fd", + local->loc.path, local->loc.inode->ino); + free (key); + } + + } + + STACK_UNWIND (frame, op_ret, op_errno, fd); + + client_local_wipe (local); + + return 0; +} + +/* + * client_stat_cbk - stat callback for client protocol + * @frame: call frame + * @args: arguments dictionary + * + * not for external reference + */ +int +client_stat_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_stat_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + +/* + * client_utimens_cbk - utimens callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ + +int32_t +client_utimens_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_utimens_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + +/* + * client_chmod_cbk - chmod for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_chmod_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_chmod_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + +/* + * client_chown_cbk - chown for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_chown_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_chown_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + +/* + * client_mknod_cbk - mknod callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_mknod_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_mknod_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + struct stat stbuf = {0, }; + inode_t *inode = NULL; + client_local_t *local = NULL; + + local = frame->local; + frame->local = NULL; + inode = local->loc.inode; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret >= 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + this_ino_set (&local->loc, frame->this, stbuf.st_ino); + } + + STACK_UNWIND (frame, op_ret, op_errno, inode, &stbuf); + + client_local_wipe (local); + + return 0; +} + +/* + * client_symlink_cbk - symlink callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_symlink_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_symlink_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + struct stat stbuf = {0, }; + inode_t *inode = NULL; + client_local_t *local = NULL; + + local = frame->local; + frame->local = NULL; + inode = local->loc.inode; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret >= 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + this_ino_set (&local->loc, frame->this, stbuf.st_ino); + } + + STACK_UNWIND (frame, op_ret, op_errno, inode, &stbuf); + + client_local_wipe (local); + + return 0; +} + +/* + * client_link_cbk - link callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_link_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_link_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + struct stat stbuf = {0, }; + inode_t *inode = NULL; + client_local_t *local = NULL; + + local = frame->local; + frame->local = NULL; + inode = local->loc.inode; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret >= 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, inode, &stbuf); + + client_local_wipe (local); + + return 0; +} + +/* + * client_truncate_cbk - truncate callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ + +int32_t +client_truncate_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_truncate_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + +/* client_fstat_cbk - fstat callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ + +int32_t +client_fstat_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_fstat_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + +/* + * client_ftruncate_cbk - ftruncate callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_ftruncate_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_ftruncate_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + +/* client_readv_cbk - readv callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external referece + */ + +int32_t +client_readv_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_read_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + struct iovec vector = {0, }; + struct stat stbuf = {0, }; + dict_t *refs = NULL; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret != -1) { + gf_stat_to_stat (&rsp->stat, &stbuf); + vector.iov_base = buf; + vector.iov_len = buflen; + + refs = get_new_dict (); + dict_set (refs, NULL, data_from_dynptr (buf, 0)); + frame->root->rsp_refs = dict_ref (refs); + } + + STACK_UNWIND (frame, op_ret, op_errno, &vector, 1, &stbuf); + + if (refs) + dict_unref (refs); + + return 0; +} + +/* + * client_write_cbk - write callback for client protocol + * @frame: cal frame + * @args: argument dictionary + * + * not for external reference + */ + +int32_t +client_write_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_write_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + struct stat stbuf = {0, }; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret >= 0) + gf_stat_to_stat (&rsp->stat, &stbuf); + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + + +int32_t +client_readdir_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_readdir_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + uint32_t buf_size = 0; + gf_dirent_t entries; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = ntoh32 (hdr->rsp.op_errno); + + INIT_LIST_HEAD (&entries.list); + if (op_ret > 0) { + buf_size = ntoh32 (rsp->size); + gf_dirent_unserialize (&entries, rsp->buf, buf_size); + } + + STACK_UNWIND (frame, op_ret, op_errno, &entries); + + gf_dirent_free (&entries); + + return 0; +} + +/* + * client_fsync_cbk - fsync callback for client protocol + * + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_fsync_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_fsync_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + + +/* + * client_unlink_cbk - unlink callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_unlink_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_unlink_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + + return 0; +} + +/* + * client_rename_cbk - rename callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_rename_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + gf_fop_rename_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + + +/* + * client_readlink_cbk - readlink callback for client protocol + * + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_readlink_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_readlink_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + char *link = NULL; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret > 0) { + link = rsp->path; + } + + STACK_UNWIND (frame, op_ret, op_errno, link); + return 0; +} + +/* + * client_mkdir_cbk - mkdir callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_mkdir_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_mkdir_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + struct stat stbuf = {0, }; + inode_t *inode = NULL; + client_local_t *local = NULL; + + local = frame->local; + inode = local->loc.inode; + frame->local = NULL; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret >= 0) { + gf_stat_to_stat (&rsp->stat, &stbuf); + this_ino_set (&local->loc, frame->this, stbuf.st_ino); + } + + STACK_UNWIND (frame, op_ret, op_errno, inode, &stbuf); + + client_local_wipe (local); + + return 0; +} + +/* + * client_flush_cbk - flush callback for client protocol + * + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ + +int32_t +client_flush_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + int32_t op_ret = 0; + int32_t op_errno = 0; + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + + return 0; +} + + +/* + * client_opendir_cbk - opendir callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int +client_opendir_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + int32_t op_ret = -1; + int32_t op_errno = ENOTCONN; + fd_t *fd = NULL; + int64_t remote_fd = 0; + gf_fop_opendir_rsp_t *rsp = NULL; + char key[32] = {0,}; + int32_t ret = -1; + client_local_t *local = NULL; + client_conf_t *conf = NULL; + + + local = frame->local; frame->local = NULL; + conf = frame->this->private; + fd = local->fd; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = ntoh32 (hdr->rsp.op_errno); + + if (op_ret >= 0) { + remote_fd = ntoh64 (rsp->fd); + } + + if (op_ret >= 0) { + this_fd_set (fd, frame->this, &local->loc, remote_fd); + + sprintf (key, "%p", fd); + + pthread_mutex_lock (&conf->mutex); + { + ret = dict_set_str (conf->saved_fds, key, ""); + } + pthread_mutex_unlock (&conf->mutex); + + if (ret < 0) { + free (key); + gf_log (frame->this->name, GF_LOG_ERROR, + "%s (%"PRId64"): failed to save remote fd", + local->loc.path, local->loc.inode->ino); + } + } + + STACK_UNWIND (frame, op_ret, op_errno, fd); + + client_local_wipe (local); + + return 0; +} + + +/* + * client_rmdir_cbk - rmdir callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ + +int +client_rmdir_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_rmdir_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + + return 0; +} + +/* + * client_access_cbk - access callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_access_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_access_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + + return 0; +} + + + +/* + * client_lookup_cbk - lookup callback for client protocol + * + * @frame: call frame + * @args: arguments dictionary + * + * not for external reference + */ +int32_t +client_lookup_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct stat stbuf = {0, }; + inode_t *inode = NULL; + dict_t *xattr = NULL; + gf_fop_lookup_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + size_t dict_len = 0; + char *dictbuf = NULL; + int32_t ret = -1; + int32_t gf_errno = 0; + client_local_t *local = NULL; + + local = frame->local; + inode = local->loc.inode; + frame->local = NULL; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + + if (op_ret == 0) { + op_ret = -1; + gf_stat_to_stat (&rsp->stat, &stbuf); + this_ino_set (&local->loc, frame->this, stbuf.st_ino); + + dict_len = ntoh32 (rsp->dict_len); + + if (dict_len > 0) { + dictbuf = memdup (rsp->dict, dict_len); + GF_VALIDATE_OR_GOTO(frame->this->name, dictbuf, fail); + + xattr = dict_new(); + GF_VALIDATE_OR_GOTO(frame->this->name, xattr, fail); + + ret = dict_unserialize (dictbuf, dict_len, &xattr); + if (ret < 0) { + gf_log (frame->this->name, GF_LOG_ERROR, + "%s (%"PRId64"): failed to unserialize dictionary", + local->loc.path, inode->ino); + goto fail; + } else { + xattr->extra_free = dictbuf; + dictbuf = NULL; + } + } + op_ret = 0; + } + gf_errno = ntoh32 (hdr->rsp.op_errno); + op_errno = gf_error_to_errno (gf_errno); + +fail: + STACK_UNWIND (frame, op_ret, op_errno, inode, &stbuf, xattr); + + client_local_wipe (local); + + if (dictbuf) + free (dictbuf); + + if (xattr) + dict_unref (xattr); + + return 0; +} + +static dir_entry_t * +gf_bin_to_direntry (char *buf, size_t count) +{ + int32_t idx = 0, bread = 0; + size_t rcount = 0; + char *ender = NULL, *buffer = NULL; + char tmp_buf[512] = {0,}; + dir_entry_t *trav = NULL, *prev = NULL; + dir_entry_t *thead = NULL, *head = NULL; + + thead = CALLOC (1, sizeof (dir_entry_t)); + GF_VALIDATE_OR_GOTO("client-protocol", thead, fail); + + buffer = buf; + prev = thead; + + for (idx = 0; idx < count ; idx++) { + bread = 0; + trav = CALLOC (1, sizeof (dir_entry_t)); + GF_VALIDATE_OR_GOTO("client-protocol", trav, fail); + + ender = strchr (buffer, '/'); + if (!ender) + break; + rcount = ender - buffer; + trav->name = CALLOC (1, rcount + 2); + GF_VALIDATE_OR_GOTO("client-protocol", trav->name, fail); + + strncpy (trav->name, buffer, rcount); + bread = rcount + 1; + buffer += bread; + + ender = strchr (buffer, '\n'); + if (!ender) + break; + rcount = ender - buffer; + strncpy (tmp_buf, buffer, rcount); + bread = rcount + 1; + buffer += bread; + + gf_string_to_stat (tmp_buf, &trav->buf); + + ender = strchr (buffer, '\n'); + if (!ender) + break; + rcount = ender - buffer; + *ender = '\0'; + if (S_ISLNK (trav->buf.st_mode)) + trav->link = strdup (buffer); + else + trav->link = ""; + + bread = rcount + 1; + buffer += bread; + + prev->next = trav; + prev = trav; + } + + head = thead; +fail: + return head; +} + +int32_t +gf_free_direntry(dir_entry_t *head) +{ + dir_entry_t *prev = NULL, *trav = NULL; + + prev = head; + GF_VALIDATE_OR_GOTO("client-protocol", prev, fail); + + trav = head->next; + while (trav) { + prev->next = trav->next; + FREE (trav->name); + if (S_ISLNK (trav->buf.st_mode)) + FREE (trav->link); + FREE (trav); + trav = prev->next; + } + FREE (head); +fail: + return 0; +} +/* + * client_getdents_cbk - readdir callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_getdents_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_getdents_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + int32_t gf_errno = 0; + int32_t nr_count = 0; + dir_entry_t *entry = NULL; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + gf_errno = ntoh32 (hdr->rsp.op_errno); + op_errno = gf_error_to_errno (gf_errno); + + if (op_ret >= 0) { + nr_count = ntoh32 (rsp->count); + entry = gf_bin_to_direntry(buf, nr_count); + if (entry == NULL) { + op_ret = -1; + op_errno = EINVAL; + } + } + + STACK_UNWIND (frame, op_ret, op_errno, entry, nr_count); + + if (op_ret >= 0) { + /* Free the buffer */ + FREE (buf); + gf_free_direntry(entry); + } + + return 0; +} + +/* + * client_statfs_cbk - statfs callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_statfs_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct statvfs stbuf = {0, }; + gf_fop_statfs_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret == 0) + { + gf_statfs_to_statfs (&rsp->statfs, &stbuf); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stbuf); + + return 0; +} + +/* + * client_fsyncdir_cbk - fsyncdir callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_fsyncdir_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + int32_t op_ret = 0; + int32_t op_errno = 0; + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + + return 0; +} + +/* + * client_setxattr_cbk - setxattr callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_setxattr_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_setxattr_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + + return 0; +} + +/* + * client_getxattr_cbk - getxattr callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_getxattr_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_getxattr_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t gf_errno = 0; + int32_t op_errno = 0; + int32_t dict_len = 0; + dict_t *dict = NULL; + int32_t ret = -1; + char *dictbuf = NULL; + client_local_t *local = NULL; + + local = frame->local; + frame->local = NULL; + + rsp = gf_param (hdr); + GF_VALIDATE_OR_GOTO(frame->this->name, rsp, fail); + + op_ret = ntoh32 (hdr->rsp.op_ret); + + if (op_ret >= 0) { + op_ret = -1; + dict_len = ntoh32 (rsp->dict_len); + + if (dict_len > 0) { + dictbuf = memdup (rsp->dict, dict_len); + GF_VALIDATE_OR_GOTO(frame->this->name, dictbuf, fail); + + dict = dict_new(); + GF_VALIDATE_OR_GOTO(frame->this->name, dict, fail); + + ret = dict_unserialize (dictbuf, dict_len, &dict); + if (ret < 0) { + gf_log (frame->this->name, GF_LOG_ERROR, + "%s (%"PRId64"): failed to " + "unserialize xattr dictionary", + local->loc.path, local->loc.inode->ino); + goto fail; + } else { + dict->extra_free = dictbuf; + dictbuf = NULL; + } + } + op_ret = 0; + } + gf_errno = ntoh32 (hdr->rsp.op_errno); + op_errno = gf_error_to_errno (gf_errno); +fail: + STACK_UNWIND (frame, op_ret, op_errno, dict); + + client_local_wipe (local); + + if (dictbuf) + free (dictbuf); + + if (dict) + dict_unref (dict); + + return 0; +} + +/* + * client_removexattr_cbk - removexattr callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_removexattr_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + int32_t op_ret = 0; + int32_t op_errno = 0; + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + + return 0; +} + +/* + * client_lk_cbk - lk callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_lk_common_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct flock lock = {0,}; + gf_fop_lk_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret >= 0) { + gf_flock_to_flock (&rsp->flock, &lock); + } + + STACK_UNWIND (frame, op_ret, op_errno, &lock); + return 0; +} + + +/* + * client_gf_file_lk_cbk - gf_file_lk callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_inodelk_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_inodelk_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + return 0; +} + + +int32_t +client_finodelk_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_finodelk_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + return 0; +} + + +/* + * client_entrylk_cbk - entrylk callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int32_t +client_entrylk_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_entrylk_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + return 0; +} + +int32_t +client_fentrylk_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_fentrylk_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + return 0; +} + + +/** + * client_writedir_cbk - + * + * @frame: + * @args: + * + * not for external reference + */ +int32_t +client_setdents_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + int32_t op_ret = 0; + int32_t op_errno = 0; + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + + return 0; +} + + + +/* + * client_stats_cbk - stats callback for client protocol + * + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ + +int32_t +client_stats_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + struct xlator_stats stats = {0,}; + gf_mop_stats_rsp_t *rsp = NULL; + char *buffer = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret >= 0) + { + buffer = rsp->buf; + + sscanf (buffer, "%"SCNx64",%"SCNx64",%"SCNx64",%"SCNx64 + ",%"SCNx64",%"SCNx64",%"SCNx64",%"SCNx64"\n", + &stats.nr_files, + &stats.disk_usage, + &stats.free_disk, + &stats.total_disk_size, + &stats.read_usage, + &stats.write_usage, + &stats.disk_speed, + &stats.nr_clients); + } + + STACK_UNWIND (frame, op_ret, op_errno, &stats); + return 0; +} + +/* + * client_getspec - getspec function for client protocol + * @frame: call frame + * @this: client protocol xlator structure + * @flag: + * + * external reference through client_protocol_xlator->fops->getspec + */ +int32_t +client_getspec (call_frame_t *frame, + xlator_t *this, + const char *key, + int32_t flag) +{ + gf_hdr_common_t *hdr = NULL; + gf_mop_getspec_req_t *req = NULL; + size_t hdrlen = -1; + int keylen = 0; + int ret = -1; + + if (key) + keylen = STRLEN_0(key); + + hdrlen = gf_hdr_len (req, keylen); + hdr = gf_hdr_new (req, keylen); + GF_VALIDATE_OR_GOTO(this->name, hdr, unwind); + + req = gf_param (hdr); + req->flags = hton32 (flag); + req->keylen = hton32 (keylen); + if (keylen) + strcpy (req->key, key); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_MOP_REQUEST, GF_MOP_GETSPEC, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +unwind: + if (hdr) + free (hdr); + STACK_UNWIND(frame, -1, EINVAL, NULL); + return 0; +} + + +/* + * client_getspec_cbk - getspec callback for client protocol + * + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ + +int32_t +client_getspec_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_mop_getspec_rsp_t *rsp = NULL; + char *spec_data = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + int32_t gf_errno = 0; + + op_ret = ntoh32 (hdr->rsp.op_ret); + gf_errno = ntoh32 (hdr->rsp.op_errno); + op_errno = gf_error_to_errno (gf_errno); + rsp = gf_param (hdr); + + if (op_ret >= 0) { + spec_data = rsp->spec; + } + + STACK_UNWIND (frame, op_ret, op_errno, spec_data); + return 0; +} + +int32_t +client_checksum (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + int32_t flag) +{ + gf_hdr_common_t *hdr = NULL; + gf_fop_checksum_req_t *req = NULL; + size_t hdrlen = -1; + int ret = -1; + client_conf_t *conf = this->private; + ino_t ino = 0; + + if (conf->child) { + STACK_WIND (frame, + default_checksum_cbk, + conf->child, + conf->child->fops->checksum, + loc, + flag); + + return 0; + } + + hdrlen = gf_hdr_len (req, strlen (loc->path) + 1); + hdr = gf_hdr_new (req, strlen (loc->path) + 1); + req = gf_param (hdr); + + ino = this_ino_get (loc, this, GF_CLIENT_INODE_SELF); + req->ino = hton64 (ino); + req->flag = hton32 (flag); + strcpy (req->path, loc->path); + + ret = protocol_client_xfer (frame, this, + CLIENT_CHANNEL (this, CHANNEL_BULK), + GF_OP_TYPE_FOP_REQUEST, GF_FOP_CHECKSUM, + hdr, hdrlen, NULL, 0, NULL); + + return ret; +} + +int32_t +client_checksum_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_fop_checksum_rsp_t *rsp = NULL; + int32_t op_ret = 0; + int32_t op_errno = 0; + int32_t gf_errno = 0; + unsigned char *fchecksum = NULL; + unsigned char *dchecksum = NULL; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + gf_errno = ntoh32 (hdr->rsp.op_errno); + op_errno = gf_error_to_errno (gf_errno); + + if (op_ret >= 0) { + fchecksum = rsp->fchecksum; + dchecksum = rsp->dchecksum + ZR_FILENAME_MAX; + } + + STACK_UNWIND (frame, op_ret, op_errno, fchecksum, dchecksum); + return 0; +} + + +/* + * client_setspec_cbk - setspec callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ + +int32_t +client_setspec_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + int32_t op_ret = 0; + int32_t op_errno = 0; + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + STACK_UNWIND (frame, op_ret, op_errno); + + return 0; +} + +/* + * client_setvolume_cbk - setvolume callback for client protocol + * @frame: call frame + * @args: argument dictionary + * + * not for external reference + */ +int +client_setvolume_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + gf_mop_setvolume_rsp_t *rsp = NULL; + client_connection_t *conn = NULL; + client_conf_t *conf = NULL; + glusterfs_ctx_t *ctx = NULL; + xlator_t *this = NULL; + xlator_list_t *parent = NULL; + transport_t *trans = NULL; + dict_t *reply = NULL; + char *remote_subvol = NULL; + char *remote_error = NULL; + char *process_uuid = NULL; + int32_t ret = -1; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + int32_t dict_len = 0; + + + trans = frame->local; frame->local = NULL; + this = frame->this; + conf = this->private; + conn = trans->xl_private; + + rsp = gf_param (hdr); + + op_ret = ntoh32 (hdr->rsp.op_ret); + op_errno = gf_error_to_errno (ntoh32 (hdr->rsp.op_errno)); + + if (op_ret < 0 && op_errno == ENOTCONN) { + gf_log (this->name, GF_LOG_ERROR, + "setvolume failed (%s)", + strerror (op_errno)); + goto out; + } + + reply = dict_new (); + GF_VALIDATE_OR_GOTO(this->name, reply, out); + + dict_len = ntoh32 (rsp->dict_len); + ret = dict_unserialize (rsp->buf, dict_len, &reply); + if (ret < 0) { + gf_log (frame->this->name, GF_LOG_ERROR, + "failed to unserialize buffer(%p) to dictionary", + rsp->buf); + goto out; + } + + ret = dict_get_str (reply, "ERROR", &remote_error); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to get ERROR string from reply dictionary"); + } + + ret = dict_get_str (reply, "process-uuid", &process_uuid); + if (ret < 0) { + gf_log (this->name, GF_LOG_DEBUG, + "failed to get 'process-uuid' from reply dictionary"); + } + + if (op_ret < 0) { + gf_log (trans->xl->name, GF_LOG_ERROR, + "SETVOLUME on remote-host failed: %s", + remote_error ? remote_error : strerror (op_errno)); + errno = op_errno; + if (op_errno == ENOTCONN) + goto out; + } else { + ctx = get_global_ctx_ptr (); + if (process_uuid && !strcmp (ctx->process_uuid,process_uuid)) { + ret = dict_get_str (this->options, "remote-subvolume", + &remote_subvol); + if (!remote_subvol) + goto out; + + gf_log (this->name, GF_LOG_WARNING, + "attaching to the local volume '%s'", + remote_subvol); + + /* TODO: */ + conf->child = xlator_search_by_name (this, + remote_subvol); + } + gf_log (trans->xl->name, GF_LOG_INFO, + "connection and handshake succeeded"); + + pthread_mutex_lock (&(conn->lock)); + { + conn->connected = 1; + } + pthread_mutex_unlock (&(conn->lock)); + + parent = trans->xl->parents; + while (parent) { + parent->xlator->notify (parent->xlator, + GF_EVENT_CHILD_UP, + trans->xl); + parent = parent->next; + } + } + +out: + STACK_DESTROY (frame->root); + + if (reply) + dict_unref (reply); + + return op_ret; +} + +/* + * client_enosys_cbk - + * @frame: call frame + * + * not for external reference + */ +int +client_enosys_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + STACK_DESTROY (frame->root); + return 0; +} + + +void +client_protocol_reconnect (void *trans_ptr) +{ + transport_t *trans = NULL; + client_connection_t *conn = NULL; + struct timeval tv = {0, 0}; + + trans = trans_ptr; + conn = trans->xl_private; + pthread_mutex_lock (&conn->lock); + { + if (conn->reconnect) + gf_timer_call_cancel (trans->xl->ctx, + conn->reconnect); + conn->reconnect = 0; + + if (conn->connected == 0) { + tv.tv_sec = 10; + + gf_log (trans->xl->name, GF_LOG_DEBUG, + "attempting reconnect"); + transport_connect (trans); + + conn->reconnect = + gf_timer_call_after (trans->xl->ctx, tv, + client_protocol_reconnect, + trans); + } else { + gf_log (trans->xl->name, GF_LOG_DEBUG, + "breaking reconnect chain"); + } + } + pthread_mutex_unlock (&conn->lock); +} + +/* + * client_protocol_cleanup - cleanup function + * @trans: transport object + * + */ +int +protocol_client_cleanup (transport_t *trans) +{ + client_connection_t *conn = NULL; + struct saved_frames *saved_frames = NULL; + + conn = trans->xl_private; + + gf_log (trans->xl->name, GF_LOG_DEBUG, + "cleaning up state in transport object %p", trans); + + pthread_mutex_lock (&conn->lock); + { + saved_frames = conn->saved_frames; + conn->saved_frames = saved_frames_new (); + +/* + trav = conn->saved_fds->members_list; + this = trans->xl; + + while (trav) { + fd_t *fd_tmp = (fd_t *)(long) strtoul (trav->key, + NULL, 0); + fd_ctx_del (fd_tmp, this, NULL); + trav = trav->next; + } + + dict_destroy (conn->saved_fds); + + conn->saved_fds = get_new_dict_full (64); +*/ + /* bailout logic cleanup */ + memset (&(conn->last_sent), 0, + sizeof (conn->last_sent)); + + memset (&(conn->last_received), 0, + sizeof (conn->last_received)); + + if (conn->timer) { + gf_timer_call_cancel (trans->xl->ctx, conn->timer); + conn->timer = NULL; + } + + if (conn->reconnect == NULL) { + /* :O This part is empty.. any thing missing? */ + } + } + pthread_mutex_unlock (&conn->lock); + + saved_frames_destroy (trans->xl, saved_frames, + gf_fops, gf_mops, gf_cbks); + + return 0; +} + + +/* cbk callbacks */ +int +client_releasedir_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + STACK_DESTROY (frame->root); + return 0; +} + + +int +client_release_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + STACK_DESTROY (frame->root); + return 0; +} + + +int +client_forget_cbk (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen) +{ + client_conf_t *conf = NULL; + client_forget_t forget = {0, }; + uint8_t send_forget = 0; + int32_t ret = -1; + + + conf = frame->this->private; + LOCK (&conf->forget.lock); + { + conf->forget.frames_in_transit--; + + ret = client_get_forgets (frame->this, &forget); + if (ret <= 0) + send_forget = 0; + else + send_forget = 1; + } + UNLOCK (&conf->forget.lock); + + if (send_forget) { + ret = protocol_client_xfer (forget.frame, frame->this, + CLIENT_CHANNEL (frame->this, + CHANNEL_BULK), + GF_OP_TYPE_CBK_REQUEST, + GF_CBK_FORGET, + forget.hdr, forget.hdrlen, + NULL, 0, NULL); + } + + STACK_DESTROY (frame->root); + return 0; +} + + +static gf_op_t gf_fops[] = { + [GF_FOP_STAT] = client_stat_cbk, + [GF_FOP_READLINK] = client_readlink_cbk, + [GF_FOP_MKNOD] = client_mknod_cbk, + [GF_FOP_MKDIR] = client_mkdir_cbk, + [GF_FOP_UNLINK] = client_unlink_cbk, + [GF_FOP_RMDIR] = client_rmdir_cbk, + [GF_FOP_SYMLINK] = client_symlink_cbk, + [GF_FOP_RENAME] = client_rename_cbk, + [GF_FOP_LINK] = client_link_cbk, + [GF_FOP_CHMOD] = client_chmod_cbk, + [GF_FOP_CHOWN] = client_chown_cbk, + [GF_FOP_TRUNCATE] = client_truncate_cbk, + [GF_FOP_OPEN] = client_open_cbk, + [GF_FOP_READ] = client_readv_cbk, + [GF_FOP_WRITE] = client_write_cbk, + [GF_FOP_STATFS] = client_statfs_cbk, + [GF_FOP_FLUSH] = client_flush_cbk, + [GF_FOP_FSYNC] = client_fsync_cbk, + [GF_FOP_SETXATTR] = client_setxattr_cbk, + [GF_FOP_GETXATTR] = client_getxattr_cbk, + [GF_FOP_REMOVEXATTR] = client_removexattr_cbk, + [GF_FOP_OPENDIR] = client_opendir_cbk, + [GF_FOP_GETDENTS] = client_getdents_cbk, + [GF_FOP_FSYNCDIR] = client_fsyncdir_cbk, + [GF_FOP_ACCESS] = client_access_cbk, + [GF_FOP_CREATE] = client_create_cbk, + [GF_FOP_FTRUNCATE] = client_ftruncate_cbk, + [GF_FOP_FSTAT] = client_fstat_cbk, + [GF_FOP_LK] = client_lk_common_cbk, + [GF_FOP_UTIMENS] = client_utimens_cbk, + [GF_FOP_FCHMOD] = client_fchmod_cbk, + [GF_FOP_FCHOWN] = client_fchown_cbk, + [GF_FOP_LOOKUP] = client_lookup_cbk, + [GF_FOP_SETDENTS] = client_setdents_cbk, + [GF_FOP_READDIR] = client_readdir_cbk, + [GF_FOP_INODELK] = client_inodelk_cbk, + [GF_FOP_FINODELK] = client_finodelk_cbk, + [GF_FOP_ENTRYLK] = client_entrylk_cbk, + [GF_FOP_FENTRYLK] = client_fentrylk_cbk, + [GF_FOP_CHECKSUM] = client_checksum_cbk, + [GF_FOP_XATTROP] = client_xattrop_cbk, + [GF_FOP_FXATTROP] = client_fxattrop_cbk, +}; + +static gf_op_t gf_mops[] = { + [GF_MOP_SETVOLUME] = client_setvolume_cbk, + [GF_MOP_GETVOLUME] = client_enosys_cbk, + [GF_MOP_STATS] = client_stats_cbk, + [GF_MOP_SETSPEC] = client_setspec_cbk, + [GF_MOP_GETSPEC] = client_getspec_cbk, + [GF_MOP_PING] = client_ping_cbk, +}; + +static gf_op_t gf_cbks[] = { + [GF_CBK_FORGET] = client_forget_cbk, + [GF_CBK_RELEASE] = client_release_cbk, + [GF_CBK_RELEASEDIR] = client_releasedir_cbk +}; + +/* + * client_protocol_interpret - protocol interpreter + * @trans: transport object + * @blk: data block + * + */ +int +protocol_client_interpret (xlator_t *this, transport_t *trans, + char *hdr_p, size_t hdrlen, + char *buf_p, size_t buflen) +{ + int ret = -1; + call_frame_t *frame = NULL; + gf_hdr_common_t *hdr = NULL; + uint64_t callid = 0; + int type = -1; + int op = -1; + + + hdr = (gf_hdr_common_t *)hdr_p; + + type = ntoh32 (hdr->type); + op = ntoh32 (hdr->op); + callid = ntoh64 (hdr->callid); + + frame = lookup_frame (trans, op, type, callid); + if (frame == NULL) { + gf_log (this->name, GF_LOG_ERROR, + "no frame for callid=%"PRId64" type=%d op=%d", + callid, type, op); + return 0; + } + + switch (type) { + case GF_OP_TYPE_FOP_REPLY: + if ((op > GF_FOP_MAXVALUE) || + (op < 0)) { + gf_log (trans->xl->name, GF_LOG_WARNING, + "invalid fop '%d'", op); + } else { + ret = gf_fops[op] (frame, hdr, hdrlen, buf_p, buflen); + } + break; + case GF_OP_TYPE_MOP_REPLY: + if ((op > GF_MOP_MAXVALUE) || + (op < 0)) { + gf_log (trans->xl->name, GF_LOG_WARNING, + "invalid fop '%d'", op); + } else { + ret = gf_mops[op] (frame, hdr, hdrlen, buf_p, buflen); + } + break; + case GF_OP_TYPE_CBK_REPLY: + if ((op > GF_CBK_MAXVALUE) || + (op < 0)) { + gf_log (trans->xl->name, GF_LOG_WARNING, + "invalid cbk '%d'", op); + } else { + ret = gf_cbks[op] (frame, hdr, hdrlen, buf_p, buflen); + } + break; + default: + gf_log (trans->xl->name, GF_LOG_ERROR, + "invalid packet type: %d", type); + break; + } + + return ret; +} + +/* + * init - initiliazation function. called during loading of client protocol + * @this: + * + */ +int32_t +init (xlator_t *this) +{ + transport_t *trans = NULL; + client_conf_t *conf = NULL; + client_connection_t *conn = NULL; + int32_t transport_timeout = 0; + int32_t ping_timeout = 0; + data_t *remote_subvolume = NULL; + int32_t ret = -1; + int i = 0; + + if (this->children) { + gf_log (this->name, GF_LOG_ERROR, + "FATAL: client protocol translator cannot have " + "subvolumes"); + goto out; + } + + if (!this->parents) { + gf_log (this->name, GF_LOG_WARNING, + "dangling volume. check volfile "); + } + + remote_subvolume = dict_get (this->options, "remote-subvolume"); + if (remote_subvolume == NULL) { + gf_log (this->name, GF_LOG_ERROR, + "missing 'option remote-subvolume'."); + goto out; + } + + ret = dict_get_int32 (this->options, "transport-timeout", + &transport_timeout); + if (ret >= 0) { + gf_log (this->name, GF_LOG_DEBUG, + "setting transport-timeout to %d", transport_timeout); + } else { + gf_log (this->name, GF_LOG_DEBUG, + "defaulting transport-timeout to 42"); + transport_timeout = 42; + } + + ret = dict_get_int32 (this->options, "ping-timeout", + &ping_timeout); + if (ret >= 0) { + gf_log (this->name, GF_LOG_DEBUG, + "setting ping-timeout to %d", ping_timeout); + } else { + gf_log (this->name, GF_LOG_DEBUG, + "defaulting ping-timeout to 10"); + ping_timeout = 10; + } + + conf = CALLOC (1, sizeof (client_conf_t)); + + LOCK_INIT (&conf->forget.lock); + pthread_mutex_init (&conf->mutex, NULL); + conf->saved_fds = get_new_dict_full (64); + + this->private = conf; + + for (i = 0; i < CHANNEL_MAX; i++) { + trans = transport_load (this->options, this); + if (trans == NULL) { + gf_log (this->name, GF_LOG_ERROR, + "Failed to load transport"); + ret = -1; + goto out; + } + + conn = CALLOC (1, sizeof (*conn)); + + conn->saved_frames = saved_frames_new (); + + conn->callid = 1; + + memset (&(conn->last_sent), 0, sizeof (conn->last_sent)); + memset (&(conn->last_received), 0, + sizeof (conn->last_received)); + + conn->transport_timeout = transport_timeout; + conn->ping_timeout = ping_timeout; + + pthread_mutex_init (&conn->lock, NULL); + + trans->xl_private = conn; + conf->transport[i] = transport_ref (trans); + } + +#ifndef GF_DARWIN_HOST_OS + { + struct rlimit lim; + + lim.rlim_cur = 1048576; + lim.rlim_max = 1048576; + + ret = setrlimit (RLIMIT_NOFILE, &lim); + if (ret == -1) { + gf_log (this->name, GF_LOG_WARNING, + "WARNING: Failed to set 'ulimit -n 1M': %s", + strerror(errno)); + lim.rlim_cur = 65536; + lim.rlim_max = 65536; + + ret = setrlimit (RLIMIT_NOFILE, &lim); + if (ret == -1) { + gf_log (this->name, GF_LOG_ERROR, + "Failed to set max open fd to 64k: %s", + strerror(errno)); + } else { + gf_log (this->name, GF_LOG_ERROR, + "max open fd set to 64k"); + } + + } + } +#endif + ret = 0; +out: + return ret; +} + +/* + * fini - finish function called during unloading of client protocol + * @this: + * + */ +void +fini (xlator_t *this) +{ + /* TODO: Check if its enough.. how to call transport's fini () */ + client_conf_t *conf = NULL; + + conf = this->private; + this->private = NULL; + + if (conf) { + LOCK_DESTROY (&conf->forget.lock); + FREE (conf); + } + return; +} + + +int +protocol_client_handshake (xlator_t *this, transport_t *trans) +{ + gf_hdr_common_t *hdr = NULL; + gf_mop_setvolume_req_t *req = NULL; + dict_t *options = NULL; + int32_t ret = -1; + int hdrlen = 0; + int dict_len = 0; + call_frame_t *fr = NULL; + char *process_uuid_xl; + + options = this->options; + ret = dict_set_str (options, "version", PACKAGE_VERSION); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to set version(%s) in options dictionary", + PACKAGE_VERSION); + } + + asprintf (&process_uuid_xl, "%s-%s", this->ctx->process_uuid, + this->name); + ret = dict_set_dynstr (options, "process-uuid", + process_uuid_xl); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to set process-uuid(%s) in options dictionary", + PACKAGE_VERSION); + } + + dict_len = dict_serialized_length (options); + if (dict_len < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to get serialized length of dict(%p)", + options); + ret = dict_len; + goto fail; + } + + hdrlen = gf_hdr_len (req, dict_len); + hdr = gf_hdr_new (req, dict_len); + GF_VALIDATE_OR_GOTO(this->name, hdr, fail); + + req = gf_param (hdr); + + ret = dict_serialize (options, req->buf); + if (ret < 0) { + gf_log (this->name, GF_LOG_ERROR, + "failed to serialize dictionary(%p)", + options); + goto fail; + } + + req->dict_len = hton32 (dict_len); + fr = create_frame (this, this->ctx->pool); + GF_VALIDATE_OR_GOTO(this->name, fr, fail); + + fr->local = trans; + ret = protocol_client_xfer (fr, this, trans, + GF_OP_TYPE_MOP_REQUEST, GF_MOP_SETVOLUME, + hdr, hdrlen, NULL, 0, NULL); + return ret; +fail: + if (hdr) + free (hdr); + return ret; +} + + +int +protocol_client_pollout (xlator_t *this, transport_t *trans) +{ + client_connection_t *conn = NULL; + + conn = trans->xl_private; + + pthread_mutex_lock (&conn->lock); + { + gettimeofday (&conn->last_sent, NULL); + } + pthread_mutex_unlock (&conn->lock); + + return 0; +} + + +int +protocol_client_pollin (xlator_t *this, transport_t *trans) +{ + client_connection_t *conn = NULL; + int ret = -1; + char *buf = NULL; + size_t buflen = 0; + char *hdr = NULL; + size_t hdrlen = 0; + int connected = 0; + + conn = trans->xl_private; + + pthread_mutex_lock (&conn->lock); + { + gettimeofday (&conn->last_received, NULL); + connected = conn->connected; + } + pthread_mutex_unlock (&conn->lock); + + ret = transport_receive (trans, &hdr, &hdrlen, &buf, &buflen); + + if (ret == 0) + { + ret = protocol_client_interpret (this, trans, hdr, hdrlen, + buf, buflen); + } + + /* TODO: use mem-pool */ + FREE (hdr); + + return ret; +} + + +/* + * client_protocol_notify - notify function for client protocol + * @this: + * @trans: transport object + * @event + * + */ + +int32_t +notify (xlator_t *this, + int32_t event, + void *data, + ...) +{ + int ret = -1; + transport_t *trans = NULL; + client_connection_t *conn = NULL; + + trans = data; + + switch (event) { + case GF_EVENT_POLLOUT: + { + ret = protocol_client_pollout (this, trans); + + break; + } + case GF_EVENT_POLLIN: + { + ret = protocol_client_pollin (this, trans); + + break; + } + /* no break for ret check to happen below */ + case GF_EVENT_POLLERR: + { + ret = -1; + protocol_client_cleanup (trans); + } + + conn = trans->xl_private; + if (conn->connected) { + xlator_list_t *parent = NULL; + + gf_log (this->name, GF_LOG_INFO, "disconnected"); + + parent = this->parents; + while (parent) { + parent->xlator->notify (parent->xlator, + GF_EVENT_CHILD_DOWN, + this); + parent = parent->next; + } + + conn->connected = 0; + if (conn->reconnect == 0) + client_protocol_reconnect (trans); + } + break; + + case GF_EVENT_PARENT_UP: + { + xlator_list_t *parent = NULL; + client_conf_t *conf = NULL; + int i = 0; + transport_t *trans = NULL; + + conf = this->private; + for (i = 0; i < CHANNEL_MAX; i++) { + trans = conf->transport[i]; + if (!trans) { + gf_log (this->name, GF_LOG_DEBUG, + "transport init failed"); + return -1; + } + + conn = trans->xl_private; + + gf_log (this->name, GF_LOG_DEBUG, + "got GF_EVENT_PARENT_UP, attempting connect " + "on transport"); + + client_protocol_reconnect (trans); + } + + /* Let the connection/re-connection happen in + * background, for now, don't hang here, + * tell the parents that i am all ok.. + */ + parent = trans->xl->parents; + while (parent) { + parent->xlator->notify (parent->xlator, + GF_EVENT_CHILD_CONNECTING, + trans->xl); + parent = parent->next; + } + } + break; + + case GF_EVENT_CHILD_UP: + { + char *handshake = NULL; + + ret = dict_get_str (this->options, "disable-handshake", + &handshake); + gf_log (this->name, GF_LOG_DEBUG, + "got GF_EVENT_CHILD_UP"); + if ((ret < 0) || + (strcasecmp (handshake, "on"))) { + ret = protocol_client_handshake (this, trans); + } else { + conn = trans->xl_private; + conn->connected = 1; + ret = default_notify (this, event, trans); + } + + if (ret) + transport_disconnect (trans); + + } + break; + + default: + gf_log (this->name, GF_LOG_DEBUG, + "got %d, calling default_notify ()", event); + + default_notify (this, event, data); + break; + } + + return ret; +} + + +struct xlator_fops fops = { + .stat = client_stat, + .readlink = client_readlink, + .mknod = client_mknod, + .mkdir = client_mkdir, + .unlink = client_unlink, + .rmdir = client_rmdir, + .symlink = client_symlink, + .rename = client_rename, + .link = client_link, + .chmod = client_chmod, + .chown = client_chown, + .truncate = client_truncate, + .utimens = client_utimens, + .open = client_open, + .readv = client_readv, + .writev = client_writev, + .statfs = client_statfs, + .flush = client_flush, + .fsync = client_fsync, + .setxattr = client_setxattr, + .getxattr = client_getxattr, + .removexattr = client_removexattr, + .opendir = client_opendir, + .readdir = client_readdir, + .fsyncdir = client_fsyncdir, + .access = client_access, + .ftruncate = client_ftruncate, + .fstat = client_fstat, + .create = client_create, + .lk = client_lk, + .inodelk = client_inodelk, + .finodelk = client_finodelk, + .entrylk = client_entrylk, + .fentrylk = client_fentrylk, + .lookup = client_lookup, + .fchmod = client_fchmod, + .fchown = client_fchown, + .setdents = client_setdents, + .getdents = client_getdents, + .checksum = client_checksum, + .xattrop = client_xattrop, + .fxattrop = client_fxattrop, +}; + +struct xlator_mops mops = { + .stats = client_stats, + .getspec = client_getspec, +}; + +struct xlator_cbks cbks = { + .forget = client_forget, + .release = client_release, + .releasedir = client_releasedir +}; + + +struct volume_options options[] = { + { .key = {"username"}, + .type = GF_OPTION_TYPE_ANY + }, + { .key = {"password"}, + .type = GF_OPTION_TYPE_ANY + }, + { .key = {"transport-type"}, + .value = {"tcp", "socket", "ib-verbs", "unix", "ib-sdp", + "tcp/client", "ib-verbs/client"}, + .type = GF_OPTION_TYPE_STR + }, + { .key = {"remote-host"}, + .type = GF_OPTION_TYPE_ANY + }, + { .key = {"remote-subvolume"}, + .type = GF_OPTION_TYPE_ANY + }, + { .key = {"transport-timeout"}, + .type = GF_OPTION_TYPE_TIME, + .min = 5, + .max = 1013, + }, + { .key = {"ping-timeout"}, + .type = GF_OPTION_TYPE_TIME, + .min = 5, + .max = 1013, + }, + { .key = {NULL} }, +}; diff --git a/xlators/protocol/client/src/client-protocol.h b/xlators/protocol/client/src/client-protocol.h new file mode 100644 index 00000000000..c90cc980d83 --- /dev/null +++ b/xlators/protocol/client/src/client-protocol.h @@ -0,0 +1,173 @@ +/* + Copyright (c) 2006, 2007 Z RESEARCH, Inc. <http://www.zresearch.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 _CLIENT_PROTOCOL_H +#define _CLIENT_PROTOCOL_H + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include <stdio.h> +#include <arpa/inet.h> +#include "inode.h" +#include "timer.h" +#include "byte-order.h" + +#define CLIENT_PROTO_FORGET_LIMIT 128 +#define CLIENT_PORT_CIELING 1023 + +#define GF_CLIENT_INODE_SELF 0 +#define GF_CLIENT_INODE_PARENT 1 + +#define CLIENT_CONF(this) ((client_conf_t *)(this->private)) + +#define RECEIVE_TIMEOUT(_cprivate,_current) \ + ((_cprivate->last_received.tv_sec + \ + _cprivate->transport_timeout) < \ + _current.tv_sec) + +#define SEND_TIMEOUT(_cprivate,_current) \ + ((_cprivate->last_sent.tv_sec + \ + _cprivate->transport_timeout) < \ + _current.tv_sec) + +enum { + CHANNEL_BULK = 0, + CHANNEL_LOWLAT = 1, + CHANNEL_MAX +}; +#define CLIENT_CHANNEL(xl,id) \ + (((client_conf_t *)(xl->private))->transport[id]) + +struct client_connection; +typedef struct client_connection client_connection_t; + +#include "stack.h" +#include "xlator.h" +#include "transport.h" +#include "protocol.h" + +struct _client_conf { + transport_t *transport[CHANNEL_MAX]; + xlator_t *child; + + /* enhancement for 'forget', a must required where lot + of stats happening */ + struct { + uint64_t ino_array[CLIENT_PROTO_FORGET_LIMIT + 4]; + uint32_t count; + uint32_t frames_in_transit; + gf_lock_t lock; + } forget; + dict_t *saved_fds; + pthread_mutex_t mutex; +}; +typedef struct _client_conf client_conf_t; + +/* This will be stored in transport_t->xl_private */ +struct client_connection { + pthread_mutex_t lock; + uint64_t callid; + struct saved_frames *saved_frames; + int32_t transport_timeout; + int32_t ping_started; + int32_t ping_timeout; + gf_timer_t *reconnect; + char connected; + uint64_t max_block_size; + struct timeval last_sent; + struct timeval last_received; + gf_timer_t *timer; + gf_timer_t *ping_timer; +}; + +typedef struct { + loc_t loc; + loc_t loc2; + fd_t *fd; +} client_local_t; + +typedef struct { + gf_hdr_common_t *hdr; + size_t hdrlen; + call_frame_t *frame; +} client_forget_t; + +static inline void +gf_string_to_stat(char *string, struct stat *stbuf) +{ + uint64_t dev = 0; + uint64_t ino = 0; + uint32_t mode = 0; + uint32_t nlink = 0; + uint32_t uid = 0; + uint32_t gid = 0; + uint64_t rdev = 0; + uint64_t size = 0; + uint32_t blksize = 0; + uint64_t blocks = 0; + uint32_t atime = 0; + uint32_t atime_nsec = 0; + uint32_t mtime = 0; + uint32_t mtime_nsec = 0; + uint32_t ctime = 0; + uint32_t ctime_nsec = 0; + + sscanf (string, GF_STAT_PRINT_FMT_STR, + &dev, + &ino, + &mode, + &nlink, + &uid, + &gid, + &rdev, + &size, + &blksize, + &blocks, + &atime, + &atime_nsec, + &mtime, + &mtime_nsec, + &ctime, + &ctime_nsec); + + stbuf->st_dev = dev; + stbuf->st_ino = ino; + stbuf->st_mode = mode; + stbuf->st_nlink = nlink; + stbuf->st_uid = uid; + stbuf->st_gid = gid; + stbuf->st_rdev = rdev; + stbuf->st_size = size; + stbuf->st_blksize = blksize; + stbuf->st_blocks = blocks; + + stbuf->st_atime = atime; + stbuf->st_mtime = mtime; + stbuf->st_ctime = ctime; + + ST_ATIM_NSEC_SET(stbuf, atime_nsec); + ST_MTIM_NSEC_SET(stbuf, mtime_nsec); + ST_CTIM_NSEC_SET(stbuf, ctime_nsec); + +} + +#endif diff --git a/xlators/protocol/client/src/saved-frames.c b/xlators/protocol/client/src/saved-frames.c new file mode 100644 index 00000000000..0d1366d8222 --- /dev/null +++ b/xlators/protocol/client/src/saved-frames.c @@ -0,0 +1,178 @@ +/* + Copyright (c) 2008 Z RESEARCH, Inc. <http://www.zresearch.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 "saved-frames.h" +#include "common-utils.h" +#include "protocol.h" +#include "xlator.h" + + + +struct saved_frames * +saved_frames_new (void) +{ + struct saved_frames *saved_frames = NULL; + + saved_frames = CALLOC (sizeof (*saved_frames), 1); + if (!saved_frames) { + return NULL; + } + + INIT_LIST_HEAD (&saved_frames->fops.list); + INIT_LIST_HEAD (&saved_frames->mops.list); + INIT_LIST_HEAD (&saved_frames->cbks.list); + + return saved_frames; +} + + +struct saved_frame * +get_head_frame_for_type (struct saved_frames *frames, int8_t type) +{ + struct saved_frame *head_frame = NULL; + + switch (type) { + case GF_OP_TYPE_FOP_REQUEST: + case GF_OP_TYPE_FOP_REPLY: + head_frame = &frames->fops; + break; + case GF_OP_TYPE_MOP_REQUEST: + case GF_OP_TYPE_MOP_REPLY: + head_frame = &frames->mops; + break; + case GF_OP_TYPE_CBK_REQUEST: + case GF_OP_TYPE_CBK_REPLY: + head_frame = &frames->cbks; + break; + } + + return head_frame; +} + + +int +saved_frames_put (struct saved_frames *frames, call_frame_t *frame, + int32_t op, int8_t type, int64_t callid) +{ + struct saved_frame *saved_frame = NULL; + struct saved_frame *head_frame = NULL; + + head_frame = get_head_frame_for_type (frames, type); + + saved_frame = CALLOC (sizeof (*saved_frame), 1); + if (!saved_frame) { + return -ENOMEM; + } + + INIT_LIST_HEAD (&saved_frame->list); + saved_frame->frame = frame; + saved_frame->op = op; + saved_frame->type = type; + saved_frame->callid = callid; + +// gettimeofday (&saved_frame->saved_at, NULL); + + list_add (&saved_frame->list, &head_frame->list); + frames->count++; + + return 0; +} + + +call_frame_t * +saved_frames_get (struct saved_frames *frames, int32_t op, + int8_t type, int64_t callid) +{ + struct saved_frame *saved_frame = NULL; + struct saved_frame *tmp = NULL; + struct saved_frame *head_frame = NULL; + call_frame_t *frame = NULL; + + head_frame = get_head_frame_for_type (frames, type); + + list_for_each_entry (tmp, &head_frame->list, list) { + if (tmp->callid == callid) { + list_del_init (&tmp->list); + frames->count--; + saved_frame = tmp; + break; + } + } + + if (saved_frame) + frame = saved_frame->frame; + + FREE (saved_frame); + + return frame; +} + + +void +saved_frames_unwind (xlator_t *this, struct saved_frames *saved_frames, + struct saved_frame *head, + gf_op_t gf_ops[], char *gf_op_list[]) +{ + struct saved_frame *trav = NULL; + struct saved_frame *tmp = NULL; + + gf_hdr_common_t hdr = {0, }; + call_frame_t *frame = NULL; + dict_t *reply = NULL; + + reply = get_new_dict(); + dict_ref (reply); + + hdr.rsp.op_ret = hton32 (-1); + hdr.rsp.op_errno = hton32 (ENOTCONN); + + list_for_each_entry_safe (trav, tmp, &head->list, list) { + gf_log (this->name, GF_LOG_ERROR, + "forced unwinding frame type(%d) op(%s)", + trav->type, gf_op_list[trav->op]); + + hdr.type = hton32 (trav->type); + hdr.op = hton32 (trav->op); + + frame = trav->frame; + frame->root->rsp_refs = reply; + + saved_frames->count--; + + gf_ops[trav->op] (frame, &hdr, sizeof (hdr), NULL, 0); + + list_del_init (&trav->list); + FREE (trav); + } + + dict_unref (reply); +} + + +void +saved_frames_destroy (xlator_t *this, struct saved_frames *frames, + gf_op_t gf_fops[], gf_op_t gf_mops[], gf_op_t gf_cbks[]) +{ + saved_frames_unwind (this, frames, &frames->fops, gf_fops, gf_fop_list); + saved_frames_unwind (this, frames, &frames->mops, gf_mops, gf_mop_list); + saved_frames_unwind (this, frames, &frames->cbks, gf_cbks, gf_cbk_list); + + FREE (frames); +} diff --git a/xlators/protocol/client/src/saved-frames.h b/xlators/protocol/client/src/saved-frames.h new file mode 100644 index 00000000000..e402feba33b --- /dev/null +++ b/xlators/protocol/client/src/saved-frames.h @@ -0,0 +1,74 @@ +/* + Copyright (c) 2008 Z RESEARCH, Inc. <http://www.zresearch.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 _SAVED_FRAMES_H +#define _SAVED_FRAMES_H + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include <stdint.h> +#include <sys/time.h> +#include "stack.h" +#include "list.h" +#include "protocol.h" + +/* UGLY: have common typedef b/w saved-frames.c and protocol-client.c */ +typedef int32_t (*gf_op_t) (call_frame_t *frame, + gf_hdr_common_t *hdr, size_t hdrlen, + char *buf, size_t buflen); + + +struct saved_frame { + union { + struct list_head list; + struct { + struct saved_frame *frame_next; + struct saved_frame *frame_prev; + }; + }; + + struct timeval saved_at; + call_frame_t *frame; + int32_t op; + int8_t type; + uint64_t callid; +}; + + +struct saved_frames { + int64_t count; + struct saved_frame fops; + struct saved_frame mops; + struct saved_frame cbks; +}; + + +struct saved_frames *saved_frames_new (); +int saved_frames_put (struct saved_frames *frames, call_frame_t *frame, + int32_t op, int8_t type, int64_t callid); +call_frame_t *saved_frames_get (struct saved_frames *frames, int32_t op, + int8_t type, int64_t callid); +void saved_frames_destroy (xlator_t *this, struct saved_frames *frames, + gf_op_t gf_fops[], gf_op_t gf_mops[], + gf_op_t gf_cbks[]); + +#endif /* _SAVED_FRAMES_H */ |