/* Copyright (c) 2010 Gluster, Inc. 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 . */ #ifndef _CONFIG_H #define _CONFIG_H #include "config.h" #endif #include "client.h" #include "xlator.h" #include "defaults.h" #include "glusterfs.h" #include "statedump.h" #include "compat-errno.h" #include "glusterfs3.h" extern rpc_clnt_prog_t clnt_handshake_prog; extern rpc_clnt_prog_t clnt_dump_prog; extern struct rpcclnt_cb_program gluster_cbk_prog; int client_handshake (xlator_t *this, struct rpc_clnt *rpc); void client_start_ping (void *data); int client_init_rpc (xlator_t *this); int client_destroy_rpc (xlator_t *this); int client_submit_request (xlator_t *this, void *req, call_frame_t *frame, rpc_clnt_prog_t *prog, int procnum, fop_cbk_fn_t cbk, struct iobref *iobref, gfs_serialize_t sfunc) { int ret = -1; clnt_conf_t *conf = NULL; struct iovec iov = {0, }; struct iobuf *iobuf = NULL; int count = 0; char new_iobref = 0, start_ping = 0; if (!this || !prog || !frame) goto out; conf = this->private; /* If 'setvolume' is not successful, we should not send frames to server, mean time we should be able to send 'DUMP' and 'SETVOLUME' call itself even if its not connected */ if (!(conf->connected || ((prog->prognum == GLUSTER_DUMP_PROGRAM) || (prog->prognum == GLUSTER_PMAP_PROGRAM) || ((prog->prognum == GLUSTER_HNDSK_PROGRAM) && (procnum == GF_HNDSK_SETVOLUME))))) goto out; iobuf = iobuf_get (this->ctx->iobuf_pool); if (!iobuf) { goto out; }; if (!iobref) { iobref = iobref_new (); if (!iobref) { goto out; } new_iobref = 1; } iobref_add (iobref, iobuf); iov.iov_base = iobuf->ptr; iov.iov_len = 128 * GF_UNIT_KB; /* Create the xdr payload */ if (req && sfunc) { ret = sfunc (iov, req); if (ret == -1) { goto out; } iov.iov_len = ret; count = 1; } /* Send the msg */ ret = rpc_clnt_submit (conf->rpc, prog, procnum, cbk, &iov, count, NULL, 0, iobref, frame, NULL, 0, NULL, 0, NULL); if (ret == 0) { pthread_mutex_lock (&conf->rpc->conn.lock); { if (!conf->rpc->conn.ping_started) { start_ping = 1; } } pthread_mutex_unlock (&conf->rpc->conn.lock); } if (start_ping) client_start_ping ((void *) this); ret = 0; out: if (new_iobref) iobref_unref (iobref); if (iobuf) iobuf_unref (iobuf); return ret; } int32_t client_forget (xlator_t *this, inode_t *inode) { /* Nothing here */ return 0; } int32_t client_releasedir (xlator_t *this, fd_t *fd) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; call_frame_t *frame = NULL; conf = this->private; if (!conf->fops) goto out; args.fd = fd; proc = &conf->fops->proctable[GF_FOP_RELEASEDIR]; if (proc->fn) { frame = create_frame (this, this->ctx->pool); if (!frame) { goto out; } ret = proc->fn (frame, this, &args); } out: if (ret) gf_log (this->name, GF_LOG_TRACE, "releasedir fop failed"); return 0; } int32_t client_release (xlator_t *this, fd_t *fd) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; call_frame_t *frame = NULL; conf = this->private; if (!conf->fops) goto out; args.fd = fd; proc = &conf->fops->proctable[GF_FOP_RELEASE]; if (proc->fn) { frame = create_frame (this, this->ctx->pool); if (!frame) { goto out; } ret = proc->fn (frame, this, &args); } out: if (ret) gf_log (this->name, GF_LOG_TRACE, "release fop failed"); return 0; } int32_t client_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xattr_req) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.dict = xattr_req; proc = &conf->fops->proctable[GF_FOP_LOOKUP]; if (proc->fn) ret = proc->fn (frame, this, &args); out: /* think of avoiding a missing frame */ if (ret) STACK_UNWIND_STRICT (lookup, frame, -1, ENOTCONN, NULL, NULL, NULL, NULL); return 0; } int32_t client_stat (call_frame_t *frame, xlator_t *this, loc_t *loc) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; proc = &conf->fops->proctable[GF_FOP_STAT]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (stat, frame, -1, ENOTCONN, NULL); return 0; } int32_t client_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.offset = offset; proc = &conf->fops->proctable[GF_FOP_TRUNCATE]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (truncate, frame, -1, ENOTCONN, NULL, NULL); return 0; } int32_t client_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.offset = offset; proc = &conf->fops->proctable[GF_FOP_FTRUNCATE]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (ftruncate, frame, -1, ENOTCONN, NULL, NULL); return 0; } int32_t client_access (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t mask) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.mask = mask; proc = &conf->fops->proctable[GF_FOP_ACCESS]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (access, frame, -1, ENOTCONN); return 0; } int32_t client_readlink (call_frame_t *frame, xlator_t *this, loc_t *loc, size_t size) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.size = size; proc = &conf->fops->proctable[GF_FOP_READLINK]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (readlink, frame, -1, ENOTCONN, NULL, NULL); return 0; } int32_t client_mknod (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, dev_t rdev) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.mode = mode; args.rdev = rdev; proc = &conf->fops->proctable[GF_FOP_MKNOD]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (mknod, frame, -1, ENOTCONN, NULL, NULL, NULL, NULL); return 0; } int32_t client_mkdir (call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.mode = mode; proc = &conf->fops->proctable[GF_FOP_MKDIR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (mkdir, frame, -1, ENOTCONN, NULL, NULL, NULL, NULL); return 0; } int32_t client_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; proc = &conf->fops->proctable[GF_FOP_UNLINK]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (unlink, frame, -1, ENOTCONN, NULL, NULL); return 0; } int32_t client_rmdir (call_frame_t *frame, xlator_t *this, loc_t *loc) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; proc = &conf->fops->proctable[GF_FOP_RMDIR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: /* think of avoiding a missing frame */ if (ret) STACK_UNWIND_STRICT (rmdir, frame, -1, ENOTCONN, NULL, NULL); return 0; } int32_t client_symlink (call_frame_t *frame, xlator_t *this, const char *linkpath, loc_t *loc) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.linkname = linkpath; args.loc = loc; proc = &conf->fops->proctable[GF_FOP_SYMLINK]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (symlink, frame, -1, ENOTCONN, NULL, NULL, NULL, NULL); return 0; } int32_t client_rename (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.oldloc = oldloc; args.newloc = newloc; proc = &conf->fops->proctable[GF_FOP_RENAME]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (rename, frame, -1, ENOTCONN, NULL, NULL, NULL, NULL, NULL); return 0; } int32_t client_link (call_frame_t *frame, xlator_t *this, loc_t *oldloc, loc_t *newloc) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.oldloc = oldloc; args.newloc = newloc; proc = &conf->fops->proctable[GF_FOP_LINK]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (link, frame, -1, ENOTCONN, NULL, NULL, NULL, NULL); return 0; } int32_t client_create (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, mode_t mode, fd_t *fd) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.flags = flags; args.mode = mode; args.fd = fd; proc = &conf->fops->proctable[GF_FOP_CREATE]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (create, frame, -1, ENOTCONN, NULL, NULL, NULL, NULL, NULL); return 0; } int32_t client_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, fd_t *fd, int32_t wbflags) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.flags = flags; args.fd = fd; args.wbflags = wbflags; proc = &conf->fops->proctable[GF_FOP_OPEN]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (open, frame, -1, ENOTCONN, NULL); return 0; } int32_t client_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, off_t offset) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.size = size; args.offset = offset; proc = &conf->fops->proctable[GF_FOP_READ]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (readv, frame, -1, ENOTCONN, NULL, 0, NULL, NULL); return 0; } int32_t client_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, struct iovec *vector, int32_t count, off_t off, struct iobref *iobref) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.vector = vector; args.count = count; args.offset = off; args.iobref = iobref; proc = &conf->fops->proctable[GF_FOP_WRITE]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (writev, frame, -1, ENOTCONN, NULL, NULL); return 0; } int32_t client_flush (call_frame_t *frame, xlator_t *this, fd_t *fd) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; proc = &conf->fops->proctable[GF_FOP_FLUSH]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (flush, frame, -1, ENOTCONN); return 0; } int32_t client_fsync (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t flags) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.flags = flags; proc = &conf->fops->proctable[GF_FOP_FSYNC]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (fsync, frame, -1, ENOTCONN, NULL, NULL); return 0; } int32_t client_fstat (call_frame_t *frame, xlator_t *this, fd_t *fd) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; proc = &conf->fops->proctable[GF_FOP_FSTAT]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (fstat, frame, -1, ENOTCONN, NULL); return 0; } int32_t client_opendir (call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.fd = fd; proc = &conf->fops->proctable[GF_FOP_OPENDIR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (opendir, frame, -1, ENOTCONN, NULL); return 0; } int32_t client_fsyncdir (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t flags) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.flags = flags; proc = &conf->fops->proctable[GF_FOP_FSYNCDIR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (fsyncdir, frame, -1, ENOTCONN); return 0; } int32_t client_statfs (call_frame_t *frame, xlator_t *this, loc_t *loc) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; proc = &conf->fops->proctable[GF_FOP_STATFS]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (statfs, frame, -1, ENOTCONN, NULL); return 0; } static gf_boolean_t is_client_rpc_init_command (dict_t *dict, xlator_t *this, char **value) { gf_boolean_t ret = _gf_false; int dict_ret = -1; if (strncmp (this->name, "replace-brick", 13)) goto out; dict_ret = dict_get_str (dict, CLIENT_CMD_CONNECT, value); if (dict_ret) goto out; ret = _gf_true; out: return ret; } static gf_boolean_t is_client_rpc_destroy_command (dict_t *dict, xlator_t *this) { gf_boolean_t ret = _gf_false; int dict_ret = -1; char *dummy = NULL; if (strncmp (this->name, "replace-brick", 13)) goto out; dict_ret = dict_get_str (dict, CLIENT_CMD_DISCONNECT, &dummy); if (dict_ret) goto out; ret = _gf_true; out: return ret; } static gf_boolean_t client_set_remote_options (char *value, xlator_t *this) { clnt_conf_t *conf = NULL; char *dup_value = NULL; char *host = NULL; char *subvol = NULL; char *host_dup = NULL; char *subvol_dup = NULL; char *tmp = NULL; gf_boolean_t ret = _gf_false; conf = this->private; dup_value = gf_strdup (value); host = strtok_r (dup_value, ":", &tmp); subvol = strtok_r (NULL, ":", &tmp); if (!subvol) { gf_log (this->name, GF_LOG_WARNING, "proper value not passed as subvolume"); goto out; } host_dup = gf_strdup (host); if (!host_dup) { gf_log (this->name, GF_LOG_ERROR, "Out of memory"); goto out; } ret = dict_set_dynstr (this->options, "remote-host", host_dup); if (ret) { gf_log (this->name, GF_LOG_WARNING, "failed to set remote-host with %s", host); goto out; } subvol_dup = gf_strdup (subvol); if (!subvol_dup) { gf_log (this->name, GF_LOG_ERROR, "Out of memory"); goto out; } ret = dict_set_dynstr (this->options, "remote-subvolume", subvol_dup); if (ret) { gf_log (this->name, GF_LOG_WARNING, "failed to set remote-host with %s", host); goto out; } ret = _gf_true; out: if (dup_value) GF_FREE (dup_value); return ret; } int32_t client_setxattr (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *dict, int32_t flags) { int ret = -1; int op_ret = -1; int op_errno = ENOTCONN; int need_unwind = 0; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; char *value = NULL; if (is_client_rpc_init_command (dict, this, &value) == _gf_true) { GF_ASSERT (value); ret = client_set_remote_options (value, this); if (ret) ret = client_init_rpc (this); if (!ret) { op_ret = 0; op_errno = 0; } need_unwind = 1; goto out; } if (is_client_rpc_destroy_command (dict, this) == _gf_true) { ret = client_destroy_rpc (this); if (ret) { op_ret = 0; op_errno = 0; } need_unwind = 1; goto out; } conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.dict = dict; args.flags = flags; proc = &conf->fops->proctable[GF_FOP_SETXATTR]; if (proc->fn) { ret = proc->fn (frame, this, &args); if (ret) { op_ret = -1; op_errno = ENOTCONN; need_unwind = 1; } } out: if (need_unwind) STACK_UNWIND_STRICT (setxattr, frame, op_ret, op_errno); return 0; } int32_t client_fsetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *dict, int32_t flags) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.dict = dict; args.flags = flags; proc = &conf->fops->proctable[GF_FOP_FSETXATTR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (fsetxattr, frame, -1, ENOTCONN); return 0; } int32_t client_fgetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd, const char *name) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.name = name; proc = &conf->fops->proctable[GF_FOP_FGETXATTR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (fgetxattr, frame, -1, ENOTCONN, NULL); return 0; } int32_t client_getxattr (call_frame_t *frame, xlator_t *this, loc_t *loc, const char *name) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.name = name; args.loc = loc; proc = &conf->fops->proctable[GF_FOP_GETXATTR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (getxattr, frame, -1, ENOTCONN, NULL); return 0; } int32_t client_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc, gf_xattrop_flags_t flags, dict_t *dict) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.flags = flags; args.dict = dict; proc = &conf->fops->proctable[GF_FOP_XATTROP]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (xattrop, frame, -1, ENOTCONN, 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) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.flags = flags; args.dict = dict; proc = &conf->fops->proctable[GF_FOP_FXATTROP]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (fxattrop, frame, -1, ENOTCONN, NULL); return 0; } int32_t client_removexattr (call_frame_t *frame, xlator_t *this, loc_t *loc, const char *name) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.name = name; args.loc = loc; proc = &conf->fops->proctable[GF_FOP_REMOVEXATTR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (removexattr, frame, -1, ENOTCONN); return 0; } int32_t client_lk (call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t cmd, struct flock *lock) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.cmd = cmd; args.flock = lock; proc = &conf->fops->proctable[GF_FOP_LK]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (lk, frame, -1, ENOTCONN, NULL); return 0; } int32_t client_inodelk (call_frame_t *frame, xlator_t *this, const char *volume, loc_t *loc, int32_t cmd, struct flock *lock) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.cmd = cmd; args.flock = lock; args.volume = volume; proc = &conf->fops->proctable[GF_FOP_INODELK]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (inodelk, frame, -1, ENOTCONN); return 0; } int32_t client_finodelk (call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd, int32_t cmd, struct flock *lock) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.cmd = cmd; args.flock = lock; args.volume = volume; proc = &conf->fops->proctable[GF_FOP_FINODELK]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (finodelk, frame, -1, ENOTCONN); return 0; } int32_t client_entrylk (call_frame_t *frame, xlator_t *this, const char *volume, loc_t *loc, const char *basename, entrylk_cmd cmd, entrylk_type type) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.basename = basename; args.type = type; args.volume = volume; args.cmd_entrylk = cmd; proc = &conf->fops->proctable[GF_FOP_ENTRYLK]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (entrylk, frame, -1, ENOTCONN); return 0; } int32_t client_fentrylk (call_frame_t *frame, xlator_t *this, const char *volume, fd_t *fd, const char *basename, entrylk_cmd cmd, entrylk_type type) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.basename = basename; args.type = type; args.volume = volume; args.cmd_entrylk = cmd; proc = &conf->fops->proctable[GF_FOP_FENTRYLK]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (fentrylk, frame, -1, ENOTCONN); return 0; } int32_t client_rchecksum (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, int32_t len) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.offset = offset; args.len = len; proc = &conf->fops->proctable[GF_FOP_RCHECKSUM]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (rchecksum, frame, -1, ENOTCONN, 0, NULL); return 0; } int32_t client_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, off_t off) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.size = size; args.offset = off; proc = &conf->fops->proctable[GF_FOP_READDIR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (readdir, frame, -1, ENOTCONN, NULL); return 0; } int32_t client_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, off_t off) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.size = size; args.offset = off; proc = &conf->fops->proctable[GF_FOP_READDIRP]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (readdirp, frame, -1, ENOTCONN, NULL); return 0; } int32_t client_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc, struct iatt *stbuf, int32_t valid) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.loc = loc; args.stbuf = stbuf; args.valid = valid; proc = &conf->fops->proctable[GF_FOP_SETATTR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (setattr, frame, -1, ENOTCONN, NULL, NULL); return 0; } int32_t client_fsetattr (call_frame_t *frame, xlator_t *this, fd_t *fd, struct iatt *stbuf, int32_t valid) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops) goto out; args.fd = fd; args.stbuf = stbuf; args.valid = valid; proc = &conf->fops->proctable[GF_FOP_FSETATTR]; if (proc->fn) ret = proc->fn (frame, this, &args); out: if (ret) STACK_UNWIND_STRICT (fsetattr, frame, -1, ENOTCONN, NULL, NULL); return 0; } int32_t client_getspec (call_frame_t *frame, xlator_t *this, const char *key, int32_t flags) { int ret = -1; clnt_conf_t *conf = NULL; rpc_clnt_procedure_t *proc = NULL; clnt_args_t args = {0,}; conf = this->private; if (!conf->fops || !conf->handshake) goto out; args.name = key; args.flags = flags; /* For all other xlators, getspec is an fop, hence its in fops table */ proc = &conf->fops->proctable[GF_FOP_GETSPEC]; if (proc->fn) { /* But at protocol level, this is handshake */ ret = proc->fn (frame, this, &args); } out: if (ret) STACK_UNWIND_STRICT (getspec, frame, -1, EINVAL, NULL); return 0; } int client_mark_fd_bad (xlator_t *this) { clnt_conf_t *conf = NULL; clnt_fd_ctx_t *tmp = NULL, *fdctx = NULL; conf = this->private; pthread_mutex_lock (&conf->lock); { list_for_each_entry_safe (fdctx, tmp, &conf->saved_fds, sfd_pos) { fdctx->remote_fd = -1; } } pthread_mutex_unlock (&conf->lock); return 0; } int client_rpc_notify (struct rpc_clnt *rpc, void *mydata, rpc_clnt_event_t event, void *data) { xlator_t *this = NULL; char *handshake = NULL; clnt_conf_t *conf = NULL; int ret = 0; this = mydata; conf = this->private; switch (event) { case RPC_CLNT_CONNECT: { // connect happened, send 'get_supported_versions' mop ret = dict_get_str (this->options, "disable-handshake", &handshake); gf_log (this->name, GF_LOG_TRACE, "got RPC_CLNT_CONNECT"); if ((ret < 0) || (strcasecmp (handshake, "on"))) { ret = client_handshake (this, conf->rpc); if (ret) gf_log (this->name, GF_LOG_DEBUG, "handshake msg returned %d", ret); } else { //conf->rpc->connected = 1; ret = default_notify (this, GF_EVENT_CHILD_UP, NULL); if (ret) gf_log (this->name, GF_LOG_DEBUG, "default notify failed"); } break; } case RPC_CLNT_DISCONNECT: client_mark_fd_bad (this); gf_log (this->name, GF_LOG_TRACE, "got RPC_CLNT_DISCONNECT"); default_notify (this, GF_EVENT_CHILD_DOWN, NULL); break; default: gf_log (this->name, GF_LOG_TRACE, "got some other RPC event %d", event); break; } return 0; } int notify (xlator_t *this, int32_t event, void *data, ...) { clnt_conf_t *conf = NULL; void *trans = NULL; conf = this->private; switch (event) { case GF_EVENT_PARENT_UP: { if (conf->rpc) trans = conf->rpc->conn.trans; if (!trans) { gf_log (this->name, GF_LOG_DEBUG, "transport init failed"); return 0; } gf_log (this->name, GF_LOG_DEBUG, "got GF_EVENT_PARENT_UP, attempting connect " "on transport"); rpc_clnt_reconnect (trans); } break; default: gf_log (this->name, GF_LOG_DEBUG, "got %d, calling default_notify ()", event); default_notify (this, event, data); break; } return 0; } int build_client_config (xlator_t *this, clnt_conf_t *conf) { int ret = 0; ret = dict_get_int32 (this->options, "frame-timeout", &conf->rpc_conf.rpc_timeout); if (ret >= 0) { gf_log (this->name, GF_LOG_DEBUG, "setting frame-timeout to %d", conf->rpc_conf.rpc_timeout); } else { gf_log (this->name, GF_LOG_DEBUG, "defaulting frame-timeout to 30mins"); conf->rpc_conf.rpc_timeout = 1800; } ret = dict_get_int32 (this->options, "remote-port", &conf->rpc_conf.remote_port); if (ret >= 0) { gf_log (this->name, GF_LOG_DEBUG, "remote-port is %d", conf->rpc_conf.remote_port); } else { gf_log (this->name, GF_LOG_DEBUG, "defaulting remote-port to 'auto'"); } ret = dict_get_int32 (this->options, "ping-timeout", &conf->opt.ping_timeout); if (ret >= 0) { gf_log (this->name, GF_LOG_DEBUG, "setting ping-timeout to %d", conf->opt.ping_timeout); } else { gf_log (this->name, GF_LOG_DEBUG, "defaulting ping-timeout to 42"); conf->opt.ping_timeout = GF_UNIVERSAL_ANSWER; } ret = dict_get_str (this->options, "remote-subvolume", &conf->opt.remote_subvolume); if (ret) { /* This is valid only if 'cluster/pump' is the parent */ gf_log (this->name, GF_LOG_NORMAL, "option 'remote-subvolume' not given"); ret = 1; goto out; } ret = 0; out: return ret; } int32_t mem_acct_init (xlator_t *this) { int ret = -1; if (!this) return ret; ret = xlator_mem_acct_init (this, gf_client_mt_end + 1); if (ret != 0) { gf_log (this->name, GF_LOG_ERROR, "Memory accounting init" "failed"); return ret; } return ret; } int client_destroy_rpc (xlator_t *this) { int ret = -1; clnt_conf_t *conf = NULL; conf = this->private; if (conf->rpc) { rpc_clnt_destroy (conf->rpc); ret = 0; gf_log (this->name, GF_LOG_DEBUG, "Client rpc conn destroyed"); goto out; } gf_log (this->name, GF_LOG_DEBUG, "RPC destory called on already destroyed " "connection"); out: return ret; } int client_init_rpc (xlator_t *this) { int ret = -1; clnt_conf_t *conf = NULL; conf = this->private; if (conf->rpc) { gf_log (this->name, GF_LOG_DEBUG, "client rpc already init'ed"); ret = -1; goto out; } conf->rpc = rpc_clnt_init (&conf->rpc_conf, this->options, this->ctx, this->name); if (!conf->rpc) goto out; ret = rpc_clnt_register_notify (conf->rpc, client_rpc_notify, this); if (ret) goto out; conf->handshake = &clnt_handshake_prog; conf->dump = &clnt_dump_prog; ret = rpcclnt_cbk_program_register (conf->rpc, &gluster_cbk_prog); if (ret) goto out; ret = 0; gf_log (this->name, GF_LOG_DEBUG, "client init successful"); out: return ret; } int init (xlator_t *this) { int ret = -1; clnt_conf_t *conf = NULL; /* */ if (this->children) { gf_log (this->name, GF_LOG_ERROR, "FATAL: client protocol translator cannot have any " "subvolumes"); goto out; } if (!this->parents) { gf_log (this->name, GF_LOG_WARNING, "Volume is dangling. "); } conf = GF_CALLOC (1, sizeof (*conf), gf_client_mt_clnt_conf_t); if (!conf) goto out; pthread_mutex_init (&conf->lock, NULL); INIT_LIST_HEAD (&conf->saved_fds); this->private = conf; /* If it returns -1, then its a failure, if it returns +1 we need have to understand that 'this' is subvolume of a xlator which, will set the remote host and remote subvolume in a setxattr call. */ ret = build_client_config (this, conf); if (ret == -1) goto out; if (ret) { ret = 0; goto out; } ret = client_init_rpc (this); out: if (ret) this->fini (this); return ret; } void fini (xlator_t *this) { clnt_conf_t *conf = NULL; conf = this->private; this->private = NULL; if (conf) { if (conf->rpc) rpc_clnt_destroy (conf->rpc); /* Saved Fds */ /* TODO: */ pthread_mutex_destroy (&conf->lock); GF_FREE (conf); } return; } int client_priv_dump (xlator_t *this) { clnt_conf_t *conf = NULL; int ret = -1; clnt_fd_ctx_t *tmp = NULL; int i = 0; char key[GF_DUMP_MAX_BUF_LEN]; char key_prefix[GF_DUMP_MAX_BUF_LEN]; if (!this) return -1; conf = this->private; if (!conf) { gf_log (this->name, GF_LOG_WARNING, "conf null in xlator"); return -1; } ret = pthread_mutex_trylock(&conf->lock); if (ret) { gf_log("", GF_LOG_WARNING, "Unable to lock client %s" " errno: %d", this->name, errno); return -1; } gf_proc_dump_build_key(key_prefix, "xlator.protocol.client", "%s.priv", this->name); gf_proc_dump_add_section(key_prefix); list_for_each_entry(tmp, &conf->saved_fds, sfd_pos) { gf_proc_dump_build_key(key, key_prefix, "fd.%d.remote_fd", ++i); gf_proc_dump_write(key, "%d", tmp->remote_fd); } gf_proc_dump_build_key(key, key_prefix, "connecting"); gf_proc_dump_write(key, "%d", conf->connecting); gf_proc_dump_build_key(key, key_prefix, "last_sent"); gf_proc_dump_write(key, "%s", ctime(&conf->last_sent.tv_sec)); gf_proc_dump_build_key(key, key_prefix, "last_received"); gf_proc_dump_write(key, "%s", ctime(&conf->last_received.tv_sec)); pthread_mutex_unlock(&conf->lock); return 0; } int32_t client_inodectx_dump (xlator_t *this, inode_t *inode) { ino_t par = 0; uint64_t gen = 0; int ret = -1; char key[GF_DUMP_MAX_BUF_LEN]; if (!inode) return -1; if (!this) return -1; ret = inode_ctx_get2 (inode, this, &par, &gen); if (ret != 0) return ret; gf_proc_dump_build_key(key, "xlator.protocol.client", "%s.inode.%ld.par", this->name,inode->ino); gf_proc_dump_write(key, "%ld, %ld", par, gen); return 0; } struct xlator_cbks cbks = { .forget = client_forget, .release = client_release, .releasedir = client_releasedir }; 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, .truncate = client_truncate, .open = client_open, .readv = client_readv, .writev = client_writev, .statfs = client_statfs, .flush = client_flush, .fsync = client_fsync, .setxattr = client_setxattr, .getxattr = client_getxattr, .fsetxattr = client_fsetxattr, .fgetxattr = client_fgetxattr, .removexattr = client_removexattr, .opendir = client_opendir, .readdir = client_readdir, .readdirp = client_readdirp, .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, .rchecksum = client_rchecksum, .xattrop = client_xattrop, .fxattrop = client_fxattrop, .setattr = client_setattr, .fsetattr = client_fsetattr, .getspec = client_getspec, }; struct xlator_dumpops dumpops = { .priv = client_priv_dump, .inodectx = client_inodectx_dump, }; 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_INTERNET_ADDRESS }, { .key = {"remote-subvolume"}, .type = GF_OPTION_TYPE_ANY }, { .key = {"frame-timeout", "rpc-timeout" }, .type = GF_OPTION_TYPE_TIME, .min = 0, .max = 86400, }, { .key = {"ping-timeout"}, .type = GF_OPTION_TYPE_TIME, .min = 1, .max = 1013, }, { .key = {NULL} }, };