/* Copyright (c) 2007-2010 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 Affero General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. GlusterFS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see . */ #include #include #include #include #include #ifndef _CONFIG_H #define _CONFIG_H #include "config.h" #endif /* _CONFIG_H */ #include "glusterfs.h" #include "stack.h" #include "dict.h" #include "event.h" #include "defaults.h" #include "rpc-clnt.h" #include "protocol-common.h" #include "glusterfs3.h" #include "portmap.h" #include "glusterd1.h" #include "glusterfsd.h" #include "rpcsvc.h" static char is_mgmt_rpc_reconnect; typedef ssize_t (*mgmt_serialize_t) (struct iovec outmsg, void *args); typedef ssize_t (*gf_serialize_t) (struct iovec outmsg, void *args); int glusterfs_mgmt_pmap_signin (glusterfs_ctx_t *ctx); int glusterfs_volfile_fetch (glusterfs_ctx_t *ctx); int glusterfs_process_volfp (glusterfs_ctx_t *ctx, FILE *fp); int mgmt_cbk_spec (void *data) { glusterfs_ctx_t *ctx = NULL; ctx = glusterfs_ctx_get (); gf_log ("mgmt", GF_LOG_INFO, "Volume file changed"); glusterfs_volfile_fetch (ctx); return 0; } struct iobuf * glusterfs_serialize_reply (rpcsvc_request_t *req, void *arg, gf_serialize_t sfunc, struct iovec *outmsg) { struct iobuf *iob = NULL; ssize_t retlen = -1; /* First, get the io buffer into which the reply in arg will * be serialized. */ iob = iobuf_get (req->svc->ctx->iobuf_pool); if (!iob) { gf_log ("", GF_LOG_ERROR, "Failed to get iobuf"); goto ret; } iobuf_to_iovec (iob, outmsg); /* Use the given serializer to translate the give C structure in arg * to XDR format which will be written into the buffer in outmsg. */ /* retlen is used to received the error since size_t is unsigned and we * need -1 for error notification during encoding. */ retlen = sfunc (*outmsg, arg); if (retlen == -1) { gf_log ("", GF_LOG_ERROR, "Failed to encode message"); goto ret; } outmsg->iov_len = retlen; ret: if (retlen == -1) { iobuf_unref (iob); iob = NULL; } return iob; } int glusterfs_submit_reply (rpcsvc_request_t *req, void *arg, struct iovec *payload, int payloadcount, struct iobref *iobref, gf_serialize_t sfunc) { struct iobuf *iob = NULL; int ret = -1; struct iovec rsp = {0,}; char new_iobref = 0; if (!req) { GF_ASSERT (req); goto out; } if (!iobref) { iobref = iobref_new (); if (!iobref) { gf_log ("", GF_LOG_ERROR, "out of memory"); goto out; } new_iobref = 1; } iob = glusterfs_serialize_reply (req, arg, sfunc, &rsp); if (!iob) { gf_log ("", GF_LOG_ERROR, "Failed to serialize reply"); goto out; } iobref_add (iobref, iob); ret = rpcsvc_submit_generic (req, &rsp, 1, payload, payloadcount, iobref); /* Now that we've done our job of handing the message to the RPC layer * we can safely unref the iob in the hope that RPC layer must have * ref'ed the iob on receiving into the txlist. */ iobuf_unref (iob); if (ret == -1) { gf_log ("", GF_LOG_ERROR, "Reply submission failed"); goto out; } ret = 0; out: if (new_iobref) { iobref_unref (iobref); } return ret; } int glusterfs_terminate_response_send (rpcsvc_request_t *req, int op_ret) { gd1_mgmt_brick_op_rsp rsp = {0,}; dict_t *dict = NULL; int ret = 0; rsp.op_ret = op_ret; rsp.op_errno = 0; rsp.op_errstr = ""; dict = dict_new (); if (dict) ret = dict_allocate_and_serialize (dict, &rsp.output.output_val, (size_t *)&rsp.output.output_len); if (ret == 0) ret = glusterfs_submit_reply (req, &rsp, NULL, 0, NULL, gd_xdr_serialize_mgmt_brick_op_rsp); if (rsp.output.output_val) GF_FREE (rsp.output.output_val); if (dict) dict_unref (dict); return ret; } int glusterfs_listener_stop (void) { glusterfs_ctx_t *ctx = NULL; cmd_args_t *cmd_args = NULL; int ret = 0; xlator_t *this = NULL; ctx = glusterfs_ctx_get (); GF_ASSERT (ctx); cmd_args = &ctx->cmd_args; if (cmd_args->sock_file) { ret = unlink (cmd_args->sock_file); if (ret && (ENOENT == errno)) { ret = 0; } } if (ret) { this = THIS; gf_log (this->name, GF_LOG_ERROR, "Failed to unlink linstener " "socket %s, error: %s", cmd_args->sock_file, strerror (errno)); } return ret; } int glusterfs_handle_terminate (rpcsvc_request_t *req) { (void) glusterfs_listener_stop (); glusterfs_terminate_response_send (req, 0); cleanup_and_exit (SIGTERM); return 0; } int glusterfs_translator_info_response_send (rpcsvc_request_t *req, int ret, char *msg, dict_t *output) { gd1_mgmt_brick_op_rsp rsp = {0,}; GF_ASSERT (msg); GF_ASSERT (req); GF_ASSERT (output); rsp.op_ret = ret; rsp.op_errno = 0; if (ret && msg[0]) rsp.op_errstr = msg; else rsp.op_errstr = ""; ret = dict_allocate_and_serialize (output, &rsp.output.output_val, (size_t *)&rsp.output.output_len); ret = glusterfs_submit_reply (req, &rsp, NULL, 0, NULL, gd_xdr_serialize_mgmt_brick_op_rsp); if (rsp.output.output_val) GF_FREE (rsp.output.output_val); return ret; } int glusterfs_handle_translator_info_get (rpcsvc_request_t *req) { int32_t ret = -1; gd1_mgmt_brick_op_req xlator_req = {0,}; dict_t *dict = NULL; xlator_t *xlator = NULL; xlator_t *any = NULL; dict_t *output = NULL; char msg[2048] = {0}; glusterfs_ctx_t *ctx = NULL; glusterfs_graph_t *active = NULL; xlator_t *this = NULL; GF_ASSERT (req); this = THIS; GF_ASSERT (this); ctx = glusterfs_ctx_get (); GF_ASSERT (ctx); active = ctx->active; any = active->first; if (!gd_xdr_to_mgmt_brick_op_req (req->msg[0], &xlator_req)) { //failed to decode msg; req->rpc_err = GARBAGE_ARGS; goto out; } dict = dict_new (); ret = dict_unserialize (xlator_req.input.input_val, xlator_req.input.input_len, &dict); if (ret < 0) { gf_log (this->name, GF_LOG_ERROR, "failed to " "unserialize req-buffer to dictionary"); goto out; } xlator = xlator_search_by_name (any, xlator_req.name); if (!xlator) { snprintf (msg, sizeof (msg), "xlator %s is not loaded", xlator_req.name); ret = -1; goto out; } output = dict_new (); ret = xlator->notify (xlator, GF_EVENT_TRANSLATOR_INFO, dict, output); out: ret = glusterfs_translator_info_response_send (req, ret, msg, output); if (dict) dict_unref (dict); if (xlator_req.input.input_val) free (xlator_req.input.input_val); // malloced by xdr if (output) dict_unref (output); if (xlator_req.name) free (xlator_req.name); //malloced by xdr return ret; } int glusterfs_handle_rpc_msg (rpcsvc_request_t *req) { int ret = -1; xlator_t *this = THIS; GF_ASSERT (this); switch (req->procnum) { case GF_BRICK_TERMINATE: ret = glusterfs_handle_terminate (req); break; case GF_BRICK_XLATOR_INFO: ret = glusterfs_handle_translator_info_get (req); break; default: break; } return ret; } rpcclnt_cb_actor_t gluster_cbk_actors[] = { [GF_CBK_FETCHSPEC] = {"FETCHSPEC", GF_CBK_FETCHSPEC, mgmt_cbk_spec }, }; struct rpcclnt_cb_program mgmt_cbk_prog = { .progname = "GlusterFS Callback", .prognum = GLUSTER_CBK_PROGRAM, .progver = GLUSTER_CBK_VERSION, .actors = gluster_cbk_actors, .numactors = GF_CBK_MAXVALUE, }; char *clnt_pmap_procs[GF_PMAP_MAXVALUE] = { [GF_PMAP_NULL] = "NULL", [GF_PMAP_PORTBYBRICK] = "PORTBYBRICK", [GF_PMAP_BRICKBYPORT] = "BRICKBYPORT", [GF_PMAP_SIGNIN] = "SIGNIN", [GF_PMAP_SIGNOUT] = "SIGNOUT", [GF_PMAP_SIGNUP] = "SIGNUP", }; rpc_clnt_prog_t clnt_pmap_prog = { .progname = "Gluster Portmap", .prognum = GLUSTER_PMAP_PROGRAM, .progver = GLUSTER_PMAP_VERSION, .procnames = clnt_pmap_procs, }; char *clnt_handshake_procs[GF_HNDSK_MAXVALUE] = { [GF_HNDSK_NULL] = "NULL", [GF_HNDSK_SETVOLUME] = "SETVOLUME", [GF_HNDSK_GETSPEC] = "GETSPEC", [GF_HNDSK_PING] = "PING", }; rpc_clnt_prog_t clnt_handshake_prog = { .progname = "GlusterFS Handshake", .prognum = GLUSTER_HNDSK_PROGRAM, .progver = GLUSTER_HNDSK_VERSION, .procnames = clnt_handshake_procs, }; rpcsvc_actor_t glusterfs_actors[] = { [GF_BRICK_NULL] = { "NULL", GF_BRICK_NULL, glusterfs_handle_rpc_msg, NULL, NULL}, [GF_BRICK_TERMINATE] = { "TERMINATE", GF_BRICK_TERMINATE, glusterfs_handle_rpc_msg, NULL, NULL}, [GF_BRICK_XLATOR_INFO] = { "TRANSLATOR INFO", GF_BRICK_XLATOR_INFO, glusterfs_handle_rpc_msg, NULL, NULL} }; struct rpcsvc_program glusterfs_mop_prog = { .progname = "GlusterFS Mops", .prognum = GLUSTERFS_PROGRAM, .progver = GLUSTERFS_VERSION, .numactors = GLUSTERFS_PROCCNT, .actors = glusterfs_actors, }; int mgmt_submit_request (void *req, call_frame_t *frame, glusterfs_ctx_t *ctx, rpc_clnt_prog_t *prog, int procnum, mgmt_serialize_t sfunc, fop_cbk_fn_t cbkfn) { int ret = -1; int count = 0; struct iovec iov = {0, }; struct iobuf *iobuf = NULL; struct iobref *iobref = NULL; iobref = iobref_new (); if (!iobref) { goto out; } iobuf = iobuf_get (ctx->iobuf_pool); if (!iobuf) { goto out; }; 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) { gf_log ("", GF_LOG_WARNING, "failed to create XDR payload"); goto out; } iov.iov_len = ret; count = 1; } /* Send the msg */ ret = rpc_clnt_submit (ctx->mgmt, prog, procnum, cbkfn, &iov, count, NULL, 0, iobref, frame, NULL, 0, NULL, 0, NULL); out: if (iobref) iobref_unref (iobref); return ret; } /* XXX: move these into @ctx */ static char oldvolfile[131072]; static int oldvollen = 0; static int xlator_equal_rec (xlator_t *xl1, xlator_t *xl2) { xlator_list_t *trav1 = NULL; xlator_list_t *trav2 = NULL; int ret = 0; if (xl1 == NULL || xl2 == NULL) { gf_log ("xlator", GF_LOG_DEBUG, "invalid argument"); return -1; } trav1 = xl1->children; trav2 = xl2->children; while (trav1 && trav2) { ret = xlator_equal_rec (trav1->xlator, trav2->xlator); if (ret) { gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG, "xlators children not equal"); goto out; } trav1 = trav1->next; trav2 = trav2->next; } if (trav1 || trav2) { ret = -1; goto out; } if (strcmp (xl1->name, xl2->name)) { ret = -1; goto out; } out : return ret; } static gf_boolean_t is_graph_topology_equal (glusterfs_graph_t *graph1, glusterfs_graph_t *graph2) { xlator_t *trav1 = NULL; xlator_t *trav2 = NULL; gf_boolean_t ret = _gf_true; trav1 = graph1->first; trav2 = graph2->first; ret = xlator_equal_rec (trav1, trav2); if (ret) { gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG, "graphs are not equal"); ret = _gf_false; goto out; } ret = _gf_true; gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG, "graphs are equal"); out: return ret; } /* Function has 3types of return value 0, -ve , 1 * return 0 =======> reconfiguration of options has succeded * return 1 =======> the graph has to be reconstructed and all the xlators should be inited * return -1(or -ve) =======> Some Internal Error occured during the operation */ static int glusterfs_volfile_reconfigure (FILE *newvolfile_fp) { glusterfs_graph_t *oldvolfile_graph = NULL; glusterfs_graph_t *newvolfile_graph = NULL; FILE *oldvolfile_fp = NULL; glusterfs_ctx_t *ctx = NULL; int ret = -1; oldvolfile_fp = tmpfile (); if (!oldvolfile_fp) goto out; if (!oldvollen) { ret = 1; // Has to call INIT for the whole graph goto out; } fwrite (oldvolfile, oldvollen, 1, oldvolfile_fp); fflush (oldvolfile_fp); oldvolfile_graph = glusterfs_graph_construct (oldvolfile_fp); if (!oldvolfile_graph) { goto out; } newvolfile_graph = glusterfs_graph_construct (newvolfile_fp); if (!newvolfile_graph) { goto out; } if (!is_graph_topology_equal (oldvolfile_graph, newvolfile_graph)) { ret = 1; gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG, "Graph topology not equal(should call INIT)"); goto out; } gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG, "Only options have changed in the new " "graph"); ctx = glusterfs_ctx_get (); if (!ctx) { gf_log ("glusterfsd-mgmt", GF_LOG_ERROR, "glusterfs_ctx_get() returned NULL"); goto out; } oldvolfile_graph = ctx->active; if (!oldvolfile_graph) { gf_log ("glusterfsd-mgmt", GF_LOG_ERROR, "glsuterfs_ctx->active is NULL"); goto out; } /* */ ret = glusterfs_graph_reconfigure (oldvolfile_graph, newvolfile_graph); if (ret) { gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG, "Could not reconfigure new options in old graph"); goto out; } ret = 0; out: return ret; } int mgmt_getspec_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { gf_getspec_rsp rsp = {0,}; call_frame_t *frame = NULL; glusterfs_ctx_t *ctx = NULL; int ret = 0; ssize_t size = 0; FILE *tmpfp = NULL; frame = myframe; ctx = frame->this->ctx; if (-1 == req->rpc_status) { ret = -1; goto out; } ret = xdr_to_getspec_rsp (*iov, &rsp); if (ret < 0) { gf_log (frame->this->name, GF_LOG_ERROR, "XDR decoding error"); ret = -1; goto out; } if (-1 == rsp.op_ret) { gf_log (frame->this->name, GF_LOG_ERROR, "failed to get the 'volume file' from server"); ret = -1; goto out; } ret = 0; size = rsp.op_ret; if (size == oldvollen && (memcmp (oldvolfile, rsp.spec, size) == 0)) { gf_log ("", GF_LOG_INFO, "No change in volfile, continuing"); goto out; } tmpfp = tmpfile (); if (!tmpfp) { ret = -1; goto out; } fwrite (rsp.spec, size, 1, tmpfp); fflush (tmpfp); /* Check if only options have changed. No need to reload the * volfile if topology hasn't changed. * glusterfs_volfile_reconfigure returns 3 possible return states * return 0 =======> reconfiguration of options has succeded * return 1 =======> the graph has to be reconstructed and all the xlators should be inited * return -1(or -ve) =======> Some Internal Error occured during the operation */ ret = glusterfs_volfile_reconfigure (tmpfp); if (ret == 0) { gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG, "No need to re-load volfile, reconfigure done"); oldvollen = size; memcpy (oldvolfile, rsp.spec, size); goto out; } if (ret < 0) { gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG, "Reconfigure failed !!"); goto out; } ret = glusterfs_process_volfp (ctx, tmpfp); if (ret) goto out; oldvollen = size; memcpy (oldvolfile, rsp.spec, size); if (!is_mgmt_rpc_reconnect) { glusterfs_mgmt_pmap_signin (ctx); is_mgmt_rpc_reconnect = 1; } out: STACK_DESTROY (frame->root); if (rsp.spec) free (rsp.spec); if (ret && ctx && !ctx->active) { /* Do it only for the first time */ /* Failed to get the volume file, something wrong, restart the process */ gf_log ("mgmt", GF_LOG_ERROR, "failed to fetch volume file (key:%s)", ctx->cmd_args.volfile_id); cleanup_and_exit (0); } return 0; } int glusterfs_volfile_fetch (glusterfs_ctx_t *ctx) { cmd_args_t *cmd_args = NULL; gf_getspec_req req = {0, }; int ret = 0; call_frame_t *frame = NULL; cmd_args = &ctx->cmd_args; frame = create_frame (THIS, ctx->pool); req.key = cmd_args->volfile_id; req.flags = 0; ret = mgmt_submit_request (&req, frame, ctx, &clnt_handshake_prog, GF_HNDSK_GETSPEC, xdr_from_getspec_req, mgmt_getspec_cbk); return ret; } static int mgmt_rpc_notify (struct rpc_clnt *rpc, void *mydata, rpc_clnt_event_t event, void *data) { xlator_t *this = NULL; glusterfs_ctx_t *ctx = NULL; int ret = 0; this = mydata; ctx = this->ctx; switch (event) { case RPC_CLNT_DISCONNECT: if (!ctx->active) { gf_log ("glusterfsd-mgmt", GF_LOG_ERROR, "failed to connect with remote-host: %s", strerror (errno)); cleanup_and_exit (1); } break; case RPC_CLNT_CONNECT: rpc_clnt_set_connected (&((struct rpc_clnt*)ctx->mgmt)->conn); ret = glusterfs_volfile_fetch (ctx); if (ret && ctx && (ctx->active == NULL)) { /* Do it only for the first time */ /* Exit the process.. there is some wrong options */ gf_log ("mgmt", GF_LOG_ERROR, "failed to fetch volume file (key:%s)", ctx->cmd_args.volfile_id); cleanup_and_exit (0); } if (is_mgmt_rpc_reconnect) glusterfs_mgmt_pmap_signin (ctx); break; default: break; } return 0; } int glusterfs_rpcsvc_notify (rpcsvc_t *rpc, void *xl, rpcsvc_event_t event, void *data) { xlator_t *this = NULL; rpc_transport_t *xprt = NULL; if (!xl || !data) { goto out; } this = xl; xprt = data; switch (event) { case RPCSVC_EVENT_ACCEPT: { break; } case RPCSVC_EVENT_DISCONNECT: { break; } default: break; } out: return 0; } int glusterfs_listener_init (glusterfs_ctx_t *ctx) { cmd_args_t *cmd_args = NULL; rpcsvc_t *rpc = NULL; dict_t *options = NULL; int ret = -1; cmd_args = &ctx->cmd_args; if (ctx->listener) return 0; if (!cmd_args->sock_file) return 0; ret = rpcsvc_transport_unix_options_build (&options, cmd_args->sock_file); if (ret) goto out; rpc = rpcsvc_init (ctx, options); if (rpc == NULL) { goto out; } ret = rpcsvc_register_notify (rpc, glusterfs_rpcsvc_notify, THIS); if (ret) { goto out; } ret = rpcsvc_create_listeners (rpc, options, "glusterfsd"); if (ret < 1) { ret = -1; goto out; } ret = rpcsvc_program_register (rpc, &glusterfs_mop_prog); if (ret) { goto out; } ctx->listener = rpc; out: return ret; } int glusterfs_mgmt_init (glusterfs_ctx_t *ctx) { cmd_args_t *cmd_args = NULL; struct rpc_clnt *rpc = NULL; dict_t *options = NULL; int ret = -1; int port = GF_DEFAULT_BASE_PORT; char *host = NULL; cmd_args = &ctx->cmd_args; if (ctx->mgmt) return 0; if (cmd_args->volfile_server_port) port = cmd_args->volfile_server_port; host = "localhost"; if (cmd_args->volfile_server) host = cmd_args->volfile_server; ret = rpc_transport_inet_options_build (&options, host, port); if (ret) goto out; rpc = rpc_clnt_new (options, THIS->ctx, THIS->name); if (!rpc) { ret = -1; gf_log ("", GF_LOG_WARNING, "failed to create rpc clnt"); goto out; } ret = rpc_clnt_register_notify (rpc, mgmt_rpc_notify, THIS); if (ret) { gf_log ("", GF_LOG_WARNING, "failed to register notify function"); goto out; } ret = rpcclnt_cbk_program_register (rpc, &mgmt_cbk_prog); if (ret) { gf_log ("", GF_LOG_WARNING, "failed to register callback function"); goto out; } ret = rpc_clnt_start (rpc); if (ret) goto out; ctx->mgmt = rpc; out: return ret; } static int mgmt_pmap_signin_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { pmap_signin_rsp rsp = {0,}; call_frame_t *frame = NULL; int ret = 0; frame = myframe; if (-1 == req->rpc_status) { rsp.op_ret = -1; rsp.op_errno = EINVAL; goto out; } ret = xdr_to_pmap_signin_rsp (*iov, &rsp); if (ret < 0) { gf_log (frame->this->name, GF_LOG_ERROR, "XDR decode error"); rsp.op_ret = -1; rsp.op_errno = EINVAL; goto out; } if (-1 == rsp.op_ret) { gf_log (frame->this->name, GF_LOG_ERROR, "failed to register the port with glusterd"); goto out; } out: STACK_DESTROY (frame->root); return 0; } int glusterfs_mgmt_pmap_signin (glusterfs_ctx_t *ctx) { call_frame_t *frame = NULL; pmap_signin_req req = {0, }; int ret = -1; cmd_args_t *cmd_args = NULL; frame = create_frame (THIS, ctx->pool); cmd_args = &ctx->cmd_args; if (!cmd_args->brick_port || !cmd_args->brick_name) { gf_log ("fsd-mgmt", GF_LOG_DEBUG, "portmapper signin arguments not given"); goto out; } req.port = cmd_args->brick_port; req.brick = cmd_args->brick_name; ret = mgmt_submit_request (&req, frame, ctx, &clnt_pmap_prog, GF_PMAP_SIGNIN, xdr_from_pmap_signin_req, mgmt_pmap_signin_cbk); out: return ret; } static int mgmt_pmap_signout_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { pmap_signout_rsp rsp = {0,}; call_frame_t *frame = NULL; int ret = 0; glusterfs_ctx_t *ctx = NULL; frame = myframe; if (-1 == req->rpc_status) { rsp.op_ret = -1; rsp.op_errno = EINVAL; goto out; } ctx = glusterfs_ctx_get (); ret = xdr_to_pmap_signout_rsp (*iov, &rsp); if (ret < 0) { gf_log ("", GF_LOG_ERROR, "XDR decoding failed"); rsp.op_ret = -1; rsp.op_errno = EINVAL; goto out; } if (-1 == rsp.op_ret) { gf_log ("", GF_LOG_ERROR, "failed to register the port with glusterd"); goto out; } out: // if (frame) // STACK_DESTROY (frame->root); return 0; } int glusterfs_mgmt_pmap_signout (glusterfs_ctx_t *ctx) { int ret = 0; pmap_signout_req req = {0, }; call_frame_t *frame = NULL; cmd_args_t *cmd_args = NULL; frame = create_frame (THIS, ctx->pool); cmd_args = &ctx->cmd_args; if (!cmd_args->brick_port || !cmd_args->brick_name) { gf_log ("fsd-mgmt", GF_LOG_DEBUG, "portmapper signout arguments not given"); goto out; } req.port = cmd_args->brick_port; req.brick = cmd_args->brick_name; ret = mgmt_submit_request (&req, frame, ctx, &clnt_pmap_prog, GF_PMAP_SIGNOUT, xdr_from_pmap_signout_req, mgmt_pmap_signout_cbk); out: return ret; }