/* Copyright (c) 2010-2012 Red Hat, Inc. This file is part of GlusterFS. This file is licensed to you under your choice of the GNU Lesser General Public License, version 3 or any later version (LGPLv3 or later), or the GNU General Public License, version 2 (GPLv2), in all cases as published by the Free Software Foundation. */ #include "rpc-clnt.h" #include "glusterd1-xdr.h" #include "cli1-xdr.h" #include "xdr-generic.h" #include "compat-errno.h" #include "glusterd-op-sm.h" #include "glusterd-sm.h" #include "glusterd.h" #include "protocol-common.h" #include "glusterd-utils.h" #include "common-utils.h" #include "glusterd-messages.h" #include "glusterd-snapshot-utils.h" #include #define SERVER_PATH_MAX (16 * 1024) extern glusterd_op_info_t opinfo; extern uuid_t global_txn_id; int32_t glusterd_op_send_cli_response (glusterd_op_t op, int32_t op_ret, int32_t op_errno, rpcsvc_request_t *req, void *op_ctx, char *op_errstr) { int32_t ret = -1; void *cli_rsp = NULL; dict_t *ctx = NULL; char *free_ptr = NULL; glusterd_conf_t *conf = NULL; xdrproc_t xdrproc = NULL; char *errstr = NULL; int32_t status = 0; int32_t count = 0; gf_cli_rsp rsp = {0,}; xlator_t *this = NULL; this = THIS; GF_ASSERT (this); conf = this->private; GF_ASSERT (conf); ctx = op_ctx; switch (op) { case GD_OP_DETACH_TIER: case GD_OP_REMOVE_TIER_BRICK: case GD_OP_REMOVE_BRICK: { if (ctx) ret = dict_get_str (ctx, "errstr", &errstr); break; } case GD_OP_RESET_VOLUME: { if (op_ret && !op_errstr) errstr = "Error while resetting options"; break; } case GD_OP_TIER_MIGRATE: case GD_OP_TIER_STATUS: case GD_OP_DETACH_TIER_STATUS: case GD_OP_REBALANCE: case GD_OP_DEFRAG_BRICK_VOLUME: { if (ctx) { ret = dict_get_int32 (ctx, "status", &status); if (ret) { gf_msg_trace (this->name, 0, "failed to get status"); } } break; } case GD_OP_GSYNC_CREATE: case GD_OP_GSYNC_SET: { if (ctx) { ret = dict_get_str (ctx, "errstr", &errstr); ret = dict_set_str (ctx, "glusterd_workdir", conf->workdir); /* swallow error here, that will be re-triggered in cli */ } break; } case GD_OP_PROFILE_VOLUME: { if (ctx && dict_get_int32 (ctx, "count", &count)) { ret = dict_set_int32 (ctx, "count", 0); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, "failed to set count in dictionary"); } } break; } case GD_OP_START_BRICK: case GD_OP_STOP_BRICK: { gf_msg_debug (this->name, 0, "op '%s' not supported", gd_op_list[op]); break; } case GD_OP_NONE: case GD_OP_MAX: { gf_msg (this->name, GF_LOG_ERROR, EINVAL, GD_MSG_OP_UNSUPPORTED, "invalid operation"); break; } case GD_OP_CREATE_VOLUME: case GD_OP_START_VOLUME: case GD_OP_STOP_VOLUME: case GD_OP_DELETE_VOLUME: case GD_OP_DEFRAG_VOLUME: case GD_OP_ADD_BRICK: case GD_OP_LOG_ROTATE: case GD_OP_SYNC_VOLUME: case GD_OP_STATEDUMP_VOLUME: case GD_OP_REPLACE_BRICK: case GD_OP_STATUS_VOLUME: case GD_OP_SET_VOLUME: case GD_OP_LIST_VOLUME: case GD_OP_CLEARLOCKS_VOLUME: case GD_OP_HEAL_VOLUME: case GD_OP_QUOTA: case GD_OP_SNAP: case GD_OP_BARRIER: case GD_OP_BITROT: case GD_OP_SCRUB_STATUS: case GD_OP_SCRUB_ONDEMAND: case GD_OP_RESET_BRICK: case GD_OP_MAX_OPVERSION: case GD_OP_TIER_START_STOP: case GD_OP_DETACH_NOT_STARTED: case GD_OP_GANESHA: case GD_OP_ADD_TIER_BRICK: { /*nothing specific to be done*/ break; } case GD_OP_COPY_FILE: { if (ctx) ret = dict_get_str (ctx, "errstr", &errstr); break; } case GD_OP_SYS_EXEC: { if (ctx) { ret = dict_get_str (ctx, "errstr", &errstr); ret = dict_set_str (ctx, "glusterd_workdir", conf->workdir); } break; } } rsp.op_ret = op_ret; rsp.op_errno = op_errno; if (errstr) rsp.op_errstr = errstr; else if (op_errstr) rsp.op_errstr = op_errstr; if (!rsp.op_errstr) rsp.op_errstr = ""; if (ctx) { ret = dict_allocate_and_serialize (ctx, &rsp.dict.dict_val, &rsp.dict.dict_len); if (ret < 0 ) gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SERL_LENGTH_GET_FAIL, "failed to " "serialize buffer"); else free_ptr = rsp.dict.dict_val; } /* needed by 'rebalance status' */ if (status) rsp.op_errno = status; cli_rsp = &rsp; xdrproc = (xdrproc_t) xdr_gf_cli_rsp; glusterd_to_cli (req, cli_rsp, NULL, 0, NULL, xdrproc, ctx); ret = 0; GF_FREE (free_ptr); gf_msg_debug (this->name, 0, "Returning %d", ret); return ret; } int glusterd_big_locked_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe, fop_cbk_fn_t fn) { glusterd_conf_t *priv = THIS->private; int ret = -1; synclock_lock (&priv->big_lock); ret = fn (req, iov, count, myframe); synclock_unlock (&priv->big_lock); return ret; } int __glusterd_probe_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { gd1_mgmt_probe_rsp rsp = {{0},}; int ret = 0; glusterd_peerinfo_t *peerinfo = NULL; glusterd_friend_sm_event_t *event = NULL; glusterd_probe_ctx_t *ctx = NULL; xlator_t *this = NULL; glusterd_conf_t *conf = NULL; if (-1 == req->rpc_status) { goto out; } this = THIS; GF_ASSERT (this != NULL); conf = this->private; GF_VALIDATE_OR_GOTO (this->name, (conf != NULL), out); ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_probe_rsp); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_RES_DECODE_FAIL, "error"); //rsp.op_ret = -1; //rsp.op_errno = EINVAL; goto out; } gf_msg (this->name, GF_LOG_INFO, 0, GD_MSG_PROBE_REQ_RESP_RCVD, "Received probe resp from uuid: %s, host: %s", uuid_utoa (rsp.uuid), rsp.hostname); if (rsp.op_ret != 0) { ctx = ((call_frame_t *)myframe)->local; ((call_frame_t *)myframe)->local = NULL; GF_ASSERT (ctx); if (ctx->req) { glusterd_xfer_cli_probe_resp (ctx->req, rsp.op_ret, rsp.op_errno, rsp.op_errstr, ctx->hostname, ctx->port, ctx->dict); } glusterd_destroy_probe_ctx (ctx); (void) glusterd_friend_remove (rsp.uuid, rsp.hostname); ret = rsp.op_ret; goto out; } rcu_read_lock (); peerinfo = glusterd_peerinfo_find (rsp.uuid, rsp.hostname); if (peerinfo == NULL) { ret = -1; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_PEER_NOT_FOUND, "Could not find peerd %s(%s)", rsp.hostname, uuid_utoa (rsp.uuid)); goto unlock; } /* * In the case of a fresh probe rsp.uuid and peerinfo.uuid will not * match, as peerinfo->uuid will be NULL. * * In the case of a peer probe being done to add a new network to a * peer, rsp.uuid will match an existing peerinfo.uuid. If we have this * stage it means that the current address/hostname being used isn't * present in the found peerinfo. If it were, we would have found out * earlier in the probe process and wouldn't even reach till here. So, * we need to add the new hostname to the peer. * * This addition should only be done for cluster op-version >= * GD_OP_VERSION_3_6_0 as address lists are only supported from then on. * Also, this update should only be done when an explicit CLI probe * command was used to begin the probe process. */ if ((conf->op_version >= GD_OP_VERSION_3_6_0) && (gf_uuid_compare (rsp.uuid, peerinfo->uuid) == 0)) { ctx = ((call_frame_t *)myframe)->local; /* Presence of ctx->req implies this probe was started by a cli * probe command */ if (ctx->req == NULL) goto cont; gf_msg_debug (this->name, 0, "Adding address '%s' to " "existing peer %s", rsp.hostname, uuid_utoa (rsp.uuid)); ret = glusterd_friend_remove (NULL, rsp.hostname); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_STALE_PEERINFO_REMOVE_FAIL, "Could not remove " "stale peerinfo with name %s", rsp.hostname); goto reply; } ret = gd_add_address_to_peer (peerinfo, rsp.hostname); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_HOSTNAME_ADD_TO_PEERLIST_FAIL, "Couldn't add hostname to peer list"); goto reply; } /* Injecting EVENT_NEW_NAME to send update */ ret = glusterd_friend_sm_new_event (GD_FRIEND_EVENT_NEW_NAME, &event); if (!ret) { event->peername = gf_strdup (peerinfo->hostname); gf_uuid_copy (event->peerid, peerinfo->uuid); ret = glusterd_friend_sm_inject_event (event); } rsp.op_errno = GF_PROBE_FRIEND; reply: ctx = ((call_frame_t *)myframe)->local; ((call_frame_t *)myframe)->local = NULL; if (!ctx) { ret = -1; goto unlock; } if (ctx->req) { glusterd_xfer_cli_probe_resp (ctx->req, ret, rsp.op_errno, rsp.op_errstr, ctx->hostname, ctx->port, ctx->dict); } glusterd_destroy_probe_ctx (ctx); goto unlock; } else if (strncasecmp (rsp.hostname, peerinfo->hostname, 1024)) { gf_msg (THIS->name, GF_LOG_INFO, 0, GD_MSG_HOST_PRESENT_ALREADY, "Host: %s with uuid: %s " "already present in cluster with alias hostname: %s", rsp.hostname, uuid_utoa (rsp.uuid), peerinfo->hostname); ctx = ((call_frame_t *)myframe)->local; ((call_frame_t *)myframe)->local = NULL; if (!ctx) { ret = -1; goto unlock; } rsp.op_errno = GF_PROBE_FRIEND; if (ctx->req) { glusterd_xfer_cli_probe_resp (ctx->req, rsp.op_ret, rsp.op_errno, rsp.op_errstr, ctx->hostname, ctx->port, ctx->dict); } glusterd_destroy_probe_ctx (ctx); (void) glusterd_friend_remove (NULL, rsp.hostname); ret = rsp.op_ret; goto unlock; } cont: gf_uuid_copy (peerinfo->uuid, rsp.uuid); ret = glusterd_friend_sm_new_event (GD_FRIEND_EVENT_INIT_FRIEND_REQ, &event); if (ret) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_NEW_FRIEND_SM_EVENT_GET_FAIL, "Unable to get event"); goto unlock; } event->peername = gf_strdup (peerinfo->hostname); gf_uuid_copy (event->peerid, peerinfo->uuid); event->ctx = ((call_frame_t *)myframe)->local; ((call_frame_t *)myframe)->local = NULL; ret = glusterd_friend_sm_inject_event (event); gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_PROBE_REQ_RESP_RCVD, "Received resp to probe req"); unlock: rcu_read_unlock (); out: free (rsp.hostname);//malloced by xdr GLUSTERD_STACK_DESTROY (((call_frame_t *)myframe)); /* Attempt to start the state machine. Needed as no state machine could * be running at time this RPC reply was received */ if (!ret) { glusterd_friend_sm (); glusterd_op_sm (); } return ret; } int glusterd_probe_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, __glusterd_probe_cbk); } int __glusterd_friend_add_cbk (struct rpc_req * req, struct iovec *iov, int count, void *myframe) { gd1_mgmt_friend_rsp rsp = {{0},}; int ret = -1; glusterd_friend_sm_event_t *event = NULL; glusterd_friend_sm_event_type_t event_type = GD_FRIEND_EVENT_NONE; glusterd_peerinfo_t *peerinfo = NULL; int32_t op_ret = -1; int32_t op_errno = EINVAL; glusterd_probe_ctx_t *ctx = NULL; glusterd_friend_update_ctx_t *ev_ctx = NULL; if (-1 == req->rpc_status) { rsp.op_ret = -1; rsp.op_errno = EINVAL; goto out; } ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_friend_rsp); if (ret < 0) { gf_msg ("glusterd", GF_LOG_ERROR, errno, GD_MSG_RES_DECODE_FAIL, "error"); rsp.op_ret = -1; rsp.op_errno = EINVAL; goto out; } op_ret = rsp.op_ret; op_errno = rsp.op_errno; gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_RESPONSE_INFO, "Received %s from uuid: %s, host: %s, port: %d", (op_ret)?"RJT":"ACC", uuid_utoa (rsp.uuid), rsp.hostname, rsp.port); rcu_read_lock (); peerinfo = glusterd_peerinfo_find (rsp.uuid, rsp.hostname); if (peerinfo == NULL) { ret = -1; gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_RESP_FROM_UNKNOWN_PEER, "received friend add response from" " unknown peer uuid: %s", uuid_utoa (rsp.uuid)); goto unlock; } if (op_ret) event_type = GD_FRIEND_EVENT_RCVD_RJT; else event_type = GD_FRIEND_EVENT_RCVD_ACC; ret = glusterd_friend_sm_new_event (event_type, &event); if (ret) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_EVENT_NEW_GET_FAIL, "Unable to get event"); goto unlock; } ev_ctx = GF_CALLOC (1, sizeof (*ev_ctx), gf_gld_mt_friend_update_ctx_t); if (!ev_ctx) { ret = -1; goto unlock; } gf_uuid_copy (ev_ctx->uuid, rsp.uuid); ev_ctx->hostname = gf_strdup (rsp.hostname); event->peername = gf_strdup (peerinfo->hostname); gf_uuid_copy (event->peerid, peerinfo->uuid); event->ctx = ev_ctx; ret = glusterd_friend_sm_inject_event (event); unlock: rcu_read_unlock (); out: ctx = ((call_frame_t *)myframe)->local; ((call_frame_t *)myframe)->local = NULL; if (ctx && ctx->req) { /*reverse probe doesn't have req*/ ret = glusterd_xfer_cli_probe_resp (ctx->req, op_ret, op_errno, NULL, ctx->hostname, ctx->port, ctx->dict); } if (!ret) { glusterd_friend_sm (); glusterd_op_sm (); } if (ctx) glusterd_destroy_probe_ctx (ctx); free (rsp.hostname);//malloced by xdr GLUSTERD_STACK_DESTROY (((call_frame_t *)myframe)); return ret; } int glusterd_friend_add_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, __glusterd_friend_add_cbk); } int __glusterd_friend_remove_cbk (struct rpc_req * req, struct iovec *iov, int count, void *myframe) { gd1_mgmt_friend_rsp rsp = {{0},}; glusterd_conf_t *conf = NULL; int ret = -1; glusterd_friend_sm_event_t *event = NULL; glusterd_friend_sm_event_type_t event_type = GD_FRIEND_EVENT_NONE; glusterd_peerinfo_t *peerinfo = NULL; int32_t op_ret = -1; int32_t op_errno = 0; glusterd_probe_ctx_t *ctx = NULL; gf_boolean_t move_sm_now = _gf_true; conf = THIS->private; GF_ASSERT (conf); ctx = ((call_frame_t *)myframe)->local; ((call_frame_t *)myframe)->local = NULL; if (!ctx) { gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_EVENT_NEW_GET_FAIL, "Unable to get glusterd probe context"); goto out; } if (-1 == req->rpc_status) { rsp.op_ret = -1; rsp.op_errno = EINVAL; move_sm_now = _gf_false; goto inject; } ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_friend_rsp); if (ret < 0) { gf_msg ("glusterd", GF_LOG_ERROR, errno, GD_MSG_RES_DECODE_FAIL, "error"); rsp.op_ret = -1; rsp.op_errno = EINVAL; goto respond; } op_ret = rsp.op_ret; op_errno = rsp.op_errno; gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_RESPONSE_INFO, "Received %s from uuid: %s, host: %s, port: %d", (op_ret)?"RJT":"ACC", uuid_utoa (rsp.uuid), rsp.hostname, rsp.port); inject: rcu_read_lock (); peerinfo = glusterd_peerinfo_find (rsp.uuid, ctx->hostname); if (peerinfo == NULL) { //can happen as part of rpc clnt connection cleanup //when the frame timeout happens after 30 minutes goto unlock; } event_type = GD_FRIEND_EVENT_REMOVE_FRIEND; ret = glusterd_friend_sm_new_event (event_type, &event); if (ret) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_EVENT_NEW_GET_FAIL, "Unable to get event"); goto unlock; } event->peername = gf_strdup (peerinfo->hostname); gf_uuid_copy (event->peerid, peerinfo->uuid); ret = glusterd_friend_sm_inject_event (event); if (ret) goto unlock; /*friend_sm would be moved on CLNT_DISCONNECT, consequently cleaning up peerinfo. Else, we run the risk of triggering a clnt_destroy within saved_frames_unwind. */ op_ret = 0; unlock: rcu_read_unlock (); respond: ret = glusterd_xfer_cli_deprobe_resp (ctx->req, op_ret, op_errno, NULL, ctx->hostname, ctx->dict); if (!ret && move_sm_now) { glusterd_friend_sm (); glusterd_op_sm (); } glusterd_broadcast_friend_delete (ctx->hostname, NULL); glusterd_destroy_probe_ctx (ctx); out: free (rsp.hostname);//malloced by xdr GLUSTERD_STACK_DESTROY (((call_frame_t *)myframe)); return ret; } int glusterd_friend_remove_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, __glusterd_friend_remove_cbk); } int32_t __glusterd_friend_update_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { int ret = -1; gd1_mgmt_friend_update_rsp rsp = {{0}, }; xlator_t *this = NULL; GF_ASSERT (req); this = THIS; if (-1 == req->rpc_status) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_RPC_FAILURE, "RPC Error"); goto out; } ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_friend_update_rsp); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_RES_DECODE_FAIL, "Failed to serialize friend" " update response"); goto out; } ret = 0; out: gf_msg (this->name, GF_LOG_INFO, 0, GD_MSG_RESPONSE_INFO, "Received %s from uuid: %s", (ret)?"RJT":"ACC", uuid_utoa (rsp.uuid)); GLUSTERD_STACK_DESTROY (((call_frame_t *)myframe)); return ret; } int glusterd_friend_update_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, __glusterd_friend_update_cbk); } int32_t __glusterd_cluster_lock_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { gd1_mgmt_cluster_lock_rsp rsp = {{0},}; int ret = -1; int32_t op_ret = -1; glusterd_op_sm_event_type_t event_type = GD_OP_EVENT_NONE; xlator_t *this = NULL; uuid_t *txn_id = NULL; glusterd_conf_t *priv = NULL; char *err_str = NULL; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); GF_ASSERT (req); txn_id = &priv->global_txn_id; if (-1 == req->rpc_status) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_NO_LOCK_RESP_FROM_PEER, "Lock response is not " "received from one of the peer"); err_str = "Lock response is not received from one of the peer"; glusterd_set_opinfo (err_str, ENETRESET, -1); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_cluster_lock_rsp); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_RES_DECODE_FAIL, "Failed to decode " "cluster lock response received from peer"); err_str = "Failed to decode cluster lock response received from" " peer"; glusterd_set_opinfo (err_str, EINVAL, -1); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } op_ret = rsp.op_ret; if (op_ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_LOCK_FROM_UUID_REJCT, "Received lock RJT from uuid: %s", uuid_utoa (rsp.uuid)); } else { gf_msg_debug (this->name, 0, "Received lock ACC from uuid: %s", uuid_utoa (rsp.uuid)); } rcu_read_lock (); ret = (glusterd_peerinfo_find (rsp.uuid, NULL) == NULL); rcu_read_unlock (); if (ret) { gf_msg (this->name, GF_LOG_CRITICAL, 0, GD_MSG_RESP_FROM_UNKNOWN_PEER, "cluster lock response received from unknown peer: %s." "Ignoring response", uuid_utoa (rsp.uuid)); err_str = "cluster lock response received from unknown peer"; goto out; } if (op_ret) { event_type = GD_OP_EVENT_RCVD_RJT; opinfo.op_ret = op_ret; opinfo.op_errstr = gf_strdup ("Another transaction could be in " "progress. Please try again after" " some time."); } else { event_type = GD_OP_EVENT_RCVD_ACC; } out: ret = glusterd_set_txn_opinfo (txn_id, &opinfo); if (ret) gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_SET_FAIL, "Unable to set " "transaction's opinfo"); ret = glusterd_op_sm_inject_event (event_type, txn_id, NULL); if (!ret) { glusterd_friend_sm (); glusterd_op_sm (); } GLUSTERD_STACK_DESTROY (((call_frame_t *)myframe)); return ret; } int32_t glusterd_cluster_lock_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, __glusterd_cluster_lock_cbk); } void glusterd_set_opinfo (char *errstr, int32_t op_errno, int32_t op_ret) { opinfo.op_errstr = gf_strdup (errstr); opinfo.op_errno = op_errno; opinfo.op_ret = op_ret; } static int32_t glusterd_mgmt_v3_lock_peers_cbk_fn (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { gd1_mgmt_v3_lock_rsp rsp = {{0},}; int ret = -1; int32_t op_ret = -1; glusterd_op_sm_event_type_t event_type = GD_OP_EVENT_NONE; xlator_t *this = NULL; call_frame_t *frame = NULL; uuid_t *txn_id = NULL; char *err_str = NULL; this = THIS; GF_ASSERT (this); GF_ASSERT (req); frame = myframe; txn_id = frame->cookie; frame->cookie = NULL; if (-1 == req->rpc_status) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_NO_LOCK_RESP_FROM_PEER, "Lock response is not " "received from one of the peer"); err_str = "Lock response is not received from one of the peer"; glusterd_set_opinfo (err_str, ENETRESET, -1); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_v3_lock_rsp); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_RES_DECODE_FAIL, "Failed to decode " "mgmt_v3 lock response received from peer"); err_str = "Failed to decode mgmt_v3 lock response received from" " peer"; glusterd_set_opinfo (err_str, EINVAL, -1); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } op_ret = rsp.op_ret; txn_id = &rsp.txn_id; if (op_ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_MGMTV3_LOCK_FROM_UUID_REJCT, "Received mgmt_v3 lock RJT from uuid: %s", uuid_utoa (rsp.uuid)); } else { gf_msg_debug (this->name, 0, "Received mgmt_v3 lock ACC from uuid: %s", uuid_utoa (rsp.uuid)); } rcu_read_lock (); ret = (glusterd_peerinfo_find (rsp.uuid, NULL) == NULL); rcu_read_unlock (); if (ret) { gf_msg (this->name, GF_LOG_CRITICAL, 0, GD_MSG_RESP_FROM_UNKNOWN_PEER, "mgmt_v3 lock response received " "from unknown peer: %s. Ignoring response", uuid_utoa (rsp.uuid)); goto out; } if (op_ret) { event_type = GD_OP_EVENT_RCVD_RJT; opinfo.op_ret = op_ret; opinfo.op_errstr = gf_strdup ("Another transaction could be in " "progress. Please try again after" " some time."); } else { event_type = GD_OP_EVENT_RCVD_ACC; } out: ret = glusterd_set_txn_opinfo (txn_id, &opinfo); if (ret) gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_SET_FAIL, "Unable to set " "transaction's opinfo"); ret = glusterd_op_sm_inject_event (event_type, txn_id, NULL); if (!ret) { glusterd_friend_sm (); glusterd_op_sm (); } GF_FREE (frame->cookie); GLUSTERD_STACK_DESTROY (frame); return ret; } int32_t glusterd_mgmt_v3_lock_peers_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, glusterd_mgmt_v3_lock_peers_cbk_fn); } static int32_t glusterd_mgmt_v3_unlock_peers_cbk_fn (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { gd1_mgmt_v3_unlock_rsp rsp = {{0},}; int ret = -1; int32_t op_ret = -1; glusterd_op_sm_event_type_t event_type = GD_OP_EVENT_NONE; xlator_t *this = NULL; call_frame_t *frame = NULL; uuid_t *txn_id = NULL; char *err_str = NULL; this = THIS; GF_ASSERT (this); GF_ASSERT (req); frame = myframe; txn_id = frame->cookie; frame->cookie = NULL; if (-1 == req->rpc_status) { err_str = "Unlock response not received from one of the peer."; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_CLUSTER_UNLOCK_FAILED, "UnLock response is not received from one of the peer"); glusterd_set_opinfo (err_str, 0, 0); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_v3_unlock_rsp); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_CLUSTER_UNLOCK_FAILED, "Failed to decode mgmt_v3 unlock response received from" "peer"); err_str = "Failed to decode mgmt_v3 unlock response received " "from peer"; glusterd_set_opinfo (err_str, 0, 0); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } op_ret = rsp.op_ret; txn_id = &rsp.txn_id; if (op_ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_MGMTV3_UNLOCK_FROM_UUID_REJCT, "Received mgmt_v3 unlock RJT from uuid: %s", uuid_utoa (rsp.uuid)); } else { gf_msg_debug (this->name, 0, "Received mgmt_v3 unlock ACC from uuid: %s", uuid_utoa (rsp.uuid)); } rcu_read_lock (); ret = (glusterd_peerinfo_find (rsp.uuid, NULL) == NULL); rcu_read_unlock (); if (ret) { gf_msg (this->name, GF_LOG_CRITICAL, 0, GD_MSG_CLUSTER_UNLOCK_FAILED, "mgmt_v3 unlock response received " "from unknown peer: %s. Ignoring response", uuid_utoa (rsp.uuid)); goto out; } if (op_ret) { event_type = GD_OP_EVENT_RCVD_RJT; opinfo.op_ret = op_ret; opinfo.op_errstr = gf_strdup ("Another transaction could be in " "progress. Please try again after" " some time."); } else { event_type = GD_OP_EVENT_RCVD_ACC; } out: ret = glusterd_set_txn_opinfo (txn_id, &opinfo); if (ret) gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_SET_FAIL, "Unable to set " "transaction's opinfo"); ret = glusterd_op_sm_inject_event (event_type, txn_id, NULL); if (!ret) { glusterd_friend_sm (); glusterd_op_sm (); } GF_FREE (frame->cookie); GLUSTERD_STACK_DESTROY (frame); return ret; } int32_t glusterd_mgmt_v3_unlock_peers_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, glusterd_mgmt_v3_unlock_peers_cbk_fn); } int32_t __glusterd_cluster_unlock_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { gd1_mgmt_cluster_lock_rsp rsp = {{0},}; int ret = -1; int32_t op_ret = -1; glusterd_op_sm_event_type_t event_type = GD_OP_EVENT_NONE; xlator_t *this = NULL; uuid_t *txn_id = NULL; glusterd_conf_t *priv = NULL; char *err_str = NULL; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); GF_ASSERT (req); txn_id = &priv->global_txn_id; if (-1 == req->rpc_status) { err_str = "Unlock response not received from one of the peer."; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_CLUSTER_UNLOCK_FAILED, "UnLock response is not received from one of the peer"); glusterd_set_opinfo (err_str, 0, 0); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_cluster_unlock_rsp); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_CLUSTER_UNLOCK_FAILED, "Failed to decode unlock response received from peer"); err_str = "Failed to decode cluster unlock response received " "from peer"; glusterd_set_opinfo (err_str, 0, 0); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } op_ret = rsp.op_ret; if (op_ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_UNLOCK_FROM_UUID_REJCT, "Received unlock RJT from uuid: %s", uuid_utoa (rsp.uuid)); } else { gf_msg_debug (this->name, 0, "Received unlock ACC from uuid: %s", uuid_utoa (rsp.uuid)); } rcu_read_lock (); ret = (glusterd_peerinfo_find (rsp.uuid, NULL) == NULL); rcu_read_unlock (); if (ret) { gf_msg (this->name, GF_LOG_CRITICAL, 0, GD_MSG_CLUSTER_UNLOCK_FAILED, "Unlock response received from unknown peer %s", uuid_utoa (rsp.uuid)); goto out; } if (op_ret) { event_type = GD_OP_EVENT_RCVD_RJT; opinfo.op_ret = op_ret; } else { event_type = GD_OP_EVENT_RCVD_ACC; } out: ret = glusterd_set_txn_opinfo (txn_id, &opinfo); if (ret) gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_SET_FAIL, "Unable to set " "transaction's opinfo"); ret = glusterd_op_sm_inject_event (event_type, txn_id, NULL); if (!ret) { glusterd_friend_sm (); glusterd_op_sm (); } GLUSTERD_STACK_DESTROY (((call_frame_t *)myframe)); return ret; } int32_t glusterd_cluster_unlock_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, __glusterd_cluster_unlock_cbk); } int32_t __glusterd_stage_op_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { gd1_mgmt_stage_op_rsp rsp = {{0},}; int ret = -1; int32_t op_ret = -1; glusterd_op_sm_event_type_t event_type = GD_OP_EVENT_NONE; glusterd_peerinfo_t *peerinfo = NULL; dict_t *dict = NULL; char *peer_str = NULL; xlator_t *this = NULL; glusterd_conf_t *priv = NULL; uuid_t *txn_id = NULL; call_frame_t *frame = NULL; this = THIS; GF_ASSERT (this); GF_ASSERT (req); priv = this->private; GF_ASSERT (priv); GF_ASSERT(myframe); frame = myframe; txn_id = frame->cookie; if (-1 == req->rpc_status) { rsp.op_ret = -1; rsp.op_errno = EINVAL; /* use standard allocation because to keep uniformity in freeing it */ rsp.op_errstr = strdup ("error"); goto out; } ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_stage_op_rsp); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_RES_DECODE_FAIL, "Failed to decode stage " "response received from peer"); rsp.op_ret = -1; rsp.op_errno = EINVAL; /* use standard allocation because to keep uniformity in freeing it */ rsp.op_errstr = strdup ("Failed to decode stage response " "received from peer."); goto out; } if (rsp.dict.dict_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (rsp.dict.dict_val, rsp.dict.dict_len, &dict); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize rsp-buffer to dictionary"); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } else { dict->extra_stdfree = rsp.dict.dict_val; } } out: op_ret = rsp.op_ret; if (op_ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_STAGE_FROM_UUID_REJCT, "Received stage RJT from uuid: %s", uuid_utoa (rsp.uuid)); } else { gf_msg_debug (this->name, 0, "Received stage ACC from uuid: %s", uuid_utoa (rsp.uuid)); } rcu_read_lock (); peerinfo = glusterd_peerinfo_find (rsp.uuid, NULL); if (peerinfo == NULL) { gf_msg (this->name, GF_LOG_CRITICAL, 0, GD_MSG_RESP_FROM_UNKNOWN_PEER, "Stage response received " "from unknown peer: %s. Ignoring response.", uuid_utoa (rsp.uuid)); } if (op_ret) { event_type = GD_OP_EVENT_RCVD_RJT; opinfo.op_ret = op_ret; if (strcmp ("", rsp.op_errstr)) { opinfo.op_errstr = gf_strdup (rsp.op_errstr); } else { if (peerinfo) peer_str = peerinfo->hostname; else peer_str = uuid_utoa (rsp.uuid); char err_str[2048]; snprintf (err_str, sizeof (err_str), OPERRSTR_STAGE_FAIL, peer_str); opinfo.op_errstr = gf_strdup (err_str); } } else { event_type = GD_OP_EVENT_RCVD_ACC; } rcu_read_unlock (); ret = glusterd_set_txn_opinfo (txn_id, &opinfo); if (ret) gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_SET_FAIL, "Unable to set " "transaction's opinfo"); ret = glusterd_op_sm_inject_event (event_type, txn_id, NULL); if (!ret) { glusterd_friend_sm (); glusterd_op_sm (); } free (rsp.op_errstr); //malloced by xdr if (dict) { if (!dict->extra_stdfree && rsp.dict.dict_val) free (rsp.dict.dict_val); //malloced by xdr dict_unref (dict); } else { free (rsp.dict.dict_val); //malloced by xdr } GF_FREE (frame->cookie); GLUSTERD_STACK_DESTROY (((call_frame_t *)myframe)); return ret; } int32_t glusterd_stage_op_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, __glusterd_stage_op_cbk); } int32_t __glusterd_commit_op_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { gd1_mgmt_commit_op_rsp rsp = {{0},}; int ret = -1; int32_t op_ret = -1; glusterd_op_sm_event_type_t event_type = GD_OP_EVENT_NONE; glusterd_peerinfo_t *peerinfo = NULL; dict_t *dict = NULL; char *peer_str = NULL; xlator_t *this = NULL; glusterd_conf_t *priv = NULL; uuid_t *txn_id = NULL; glusterd_op_info_t txn_op_info = {{0},}; call_frame_t *frame = NULL; this = THIS; GF_ASSERT (this); GF_ASSERT (req); priv = this->private; GF_ASSERT (priv); GF_ASSERT(myframe); frame = myframe; txn_id = frame->cookie; if (-1 == req->rpc_status) { rsp.op_ret = -1; rsp.op_errno = EINVAL; /* use standard allocation because to keep uniformity in freeing it */ rsp.op_errstr = strdup ("error"); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_commit_op_rsp); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_RES_DECODE_FAIL, "Failed to decode commit " "response received from peer"); rsp.op_ret = -1; rsp.op_errno = EINVAL; /* use standard allocation because to keep uniformity in freeing it */ rsp.op_errstr = strdup ("Failed to decode commit response " "received from peer."); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } if (rsp.dict.dict_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (rsp.dict.dict_val, rsp.dict.dict_len, &dict); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize rsp-buffer to dictionary"); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } else { dict->extra_stdfree = rsp.dict.dict_val; } } op_ret = rsp.op_ret; if (op_ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_COMMIT_FROM_UUID_REJCT, "Received commit RJT from uuid: %s", uuid_utoa (rsp.uuid)); } else { gf_msg_debug (this->name, 0, "Received commit ACC from uuid: %s", uuid_utoa (rsp.uuid)); } ret = glusterd_get_txn_opinfo (txn_id, &txn_op_info); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_GET_FAIL, "Failed to get txn_op_info " "for txn_id = %s", uuid_utoa (*txn_id)); } rcu_read_lock (); peerinfo = glusterd_peerinfo_find (rsp.uuid, NULL); if (peerinfo == NULL) { gf_msg (this->name, GF_LOG_CRITICAL, 0, GD_MSG_RESP_FROM_UNKNOWN_PEER, "Commit response for " "'Volume %s' received from unknown peer: %s", gd_op_list[opinfo.op], uuid_utoa (rsp.uuid)); } if (op_ret) { event_type = GD_OP_EVENT_RCVD_RJT; opinfo.op_ret = op_ret; if (strcmp ("", rsp.op_errstr)) { opinfo.op_errstr = gf_strdup(rsp.op_errstr); } else { if (peerinfo) peer_str = peerinfo->hostname; else peer_str = uuid_utoa (rsp.uuid); char err_str[2048]; snprintf (err_str, sizeof (err_str), OPERRSTR_COMMIT_FAIL, peer_str); opinfo.op_errstr = gf_strdup (err_str); } if (!opinfo.op_errstr) { goto unlock; } } else { event_type = GD_OP_EVENT_RCVD_ACC; GF_ASSERT (rsp.op == txn_op_info.op); switch (rsp.op) { case GD_OP_PROFILE_VOLUME: ret = glusterd_profile_volume_use_rsp_dict (txn_op_info.op_ctx, dict); if (ret) goto unlock; break; case GD_OP_REBALANCE: case GD_OP_DEFRAG_BRICK_VOLUME: ret = glusterd_volume_rebalance_use_rsp_dict (txn_op_info.op_ctx, dict); if (ret) goto unlock; break; default: break; } } unlock: rcu_read_unlock (); out: ret = glusterd_set_txn_opinfo (txn_id, &opinfo); if (ret) gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_SET_FAIL, "Unable to set " "transaction's opinfo"); ret = glusterd_op_sm_inject_event (event_type, txn_id, NULL); if (!ret) { glusterd_friend_sm (); glusterd_op_sm (); } if (dict) dict_unref (dict); free (rsp.op_errstr); //malloced by xdr GF_FREE (frame->cookie); GLUSTERD_STACK_DESTROY (((call_frame_t *)myframe)); return ret; } int32_t glusterd_commit_op_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, __glusterd_commit_op_cbk); } int32_t glusterd_rpc_probe (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_probe_req req = {{0},}; int ret = 0; int port = 0; char *hostname = NULL; glusterd_peerinfo_t *peerinfo = NULL; glusterd_conf_t *priv = NULL; dict_t *dict = NULL; if (!frame || !this || !data) { ret = -1; goto out; } dict = data; priv = this->private; GF_ASSERT (priv); ret = dict_get_str (dict, "hostname", &hostname); if (ret) goto out; ret = dict_get_int32 (dict, "port", &port); if (ret) port = GF_DEFAULT_BASE_PORT; ret = dict_get_ptr (dict, "peerinfo", VOID (&peerinfo)); if (ret) goto out; gf_uuid_copy (req.uuid, MY_UUID); req.hostname = gf_strdup (hostname); req.port = port; ret = glusterd_submit_request (peerinfo->rpc, &req, frame, peerinfo->peer, GLUSTERD_PROBE_QUERY, NULL, this, glusterd_probe_cbk, (xdrproc_t)xdr_gd1_mgmt_probe_req); out: GF_FREE (req.hostname); gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); return ret; } int32_t glusterd_rpc_friend_add (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_friend_req req = {{0},}; int ret = 0; glusterd_peerinfo_t *peerinfo = NULL; glusterd_conf_t *priv = NULL; glusterd_friend_sm_event_t *event = NULL; dict_t *peer_data = NULL; if (!frame || !this || !data) { ret = -1; goto out; } event = data; priv = this->private; GF_ASSERT (priv); rcu_read_lock (); peerinfo = glusterd_peerinfo_find (event->peerid, event->peername); if (!peerinfo) { rcu_read_unlock (); ret = -1; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_PEER_NOT_FOUND, "Could not find peer %s(%s)", event->peername, uuid_utoa (event->peerid)); goto out; } gf_uuid_copy (req.uuid, MY_UUID); req.hostname = gf_strdup (peerinfo->hostname); req.port = peerinfo->port; rcu_read_unlock (); ret = glusterd_add_volumes_to_export_dict (&peer_data); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, "Unable to add list of volumes " "in the peer_data dict for handshake"); goto out; } ret = dict_set_dynstr_with_alloc (peer_data, "hostname_in_cluster", peerinfo->hostname); if (ret) { gf_msg (this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, "Unable to add hostname of the peer"); goto out; } if (priv->op_version >= GD_OP_VERSION_3_6_0) { ret = glusterd_add_missed_snaps_to_export_dict (peer_data); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_MISSED_SNAP_LIST_STORE_FAIL, "Unable to add list of missed snapshots " "in the peer_data dict for handshake"); goto out; } ret = glusterd_add_snapshots_to_export_dict (peer_data); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_SNAP_LIST_SET_FAIL, "Unable to add list of snapshots " "in the peer_data dict for handshake"); goto out; } } ret = dict_allocate_and_serialize (peer_data, &req.vols.vols_val, &req.vols.vols_len); if (ret) goto out; ret = glusterd_submit_request (peerinfo->rpc, &req, frame, peerinfo->peer, GLUSTERD_FRIEND_ADD, NULL, this, glusterd_friend_add_cbk, (xdrproc_t)xdr_gd1_mgmt_friend_req); out: GF_FREE (req.vols.vols_val); GF_FREE (req.hostname); if (peer_data) dict_unref (peer_data); gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); return ret; } int32_t glusterd_rpc_friend_remove (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_friend_req req = {{0},}; int ret = 0; glusterd_peerinfo_t *peerinfo = NULL; glusterd_conf_t *priv = NULL; glusterd_friend_sm_event_t *event = NULL; if (!frame || !this || !data) { ret = -1; goto out; } event = data; priv = this->private; GF_ASSERT (priv); rcu_read_lock (); peerinfo = glusterd_peerinfo_find (event->peerid, event->peername); if (!peerinfo) { rcu_read_unlock (); ret = -1; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_PEER_NOT_FOUND, "Could not find peer %s(%s)", event->peername, uuid_utoa (event->peerid)); goto out; } gf_uuid_copy (req.uuid, MY_UUID); req.hostname = gf_strdup (peerinfo->hostname); req.port = peerinfo->port; ret = glusterd_submit_request (peerinfo->rpc, &req, frame, peerinfo->peer, GLUSTERD_FRIEND_REMOVE, NULL, this, glusterd_friend_remove_cbk, (xdrproc_t)xdr_gd1_mgmt_friend_req); rcu_read_unlock (); out: GF_FREE (req.hostname); gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); return ret; } int32_t glusterd_rpc_friend_update (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_friend_update req = {{0},}; int ret = 0; glusterd_conf_t *priv = NULL; dict_t *friends = NULL; call_frame_t *dummy_frame = NULL; glusterd_peerinfo_t *peerinfo = NULL; priv = this->private; GF_ASSERT (priv); friends = data; if (!friends) goto out; ret = dict_get_ptr (friends, "peerinfo", VOID(&peerinfo)); if (ret) goto out; /* Don't want to send the pointer over */ dict_del (friends, "peerinfo"); ret = dict_allocate_and_serialize (friends, &req.friends.friends_val, &req.friends.friends_len); if (ret) goto out; gf_uuid_copy (req.uuid, MY_UUID); dummy_frame = create_frame (this, this->ctx->pool); ret = glusterd_submit_request (peerinfo->rpc, &req, dummy_frame, peerinfo->peer, GLUSTERD_FRIEND_UPDATE, NULL, this, glusterd_friend_update_cbk, (xdrproc_t)xdr_gd1_mgmt_friend_update); out: GF_FREE (req.friends.friends_val); if (ret && dummy_frame) STACK_DESTROY (dummy_frame->root); gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); return ret; } int32_t glusterd_cluster_lock (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_cluster_lock_req req = {{0},}; int ret = -1; glusterd_peerinfo_t *peerinfo = NULL; glusterd_conf_t *priv = NULL; call_frame_t *dummy_frame = NULL; if (!this) goto out; peerinfo = data; priv = this->private; GF_ASSERT (priv); glusterd_get_uuid (&req.uuid); dummy_frame = create_frame (this, this->ctx->pool); if (!dummy_frame) goto out; ret = glusterd_submit_request (peerinfo->rpc, &req, dummy_frame, peerinfo->mgmt, GLUSTERD_MGMT_CLUSTER_LOCK, NULL, this, glusterd_cluster_lock_cbk, (xdrproc_t)xdr_gd1_mgmt_cluster_lock_req); out: gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); if (ret && dummy_frame) STACK_DESTROY (dummy_frame->root); return ret; } int32_t glusterd_mgmt_v3_lock_peers (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_v3_lock_req req = {{0},}; int ret = -1; glusterd_peerinfo_t *peerinfo = NULL; glusterd_conf_t *priv = NULL; dict_t *dict = NULL; uuid_t *txn_id = NULL; if (!this) goto out; dict = data; priv = this->private; GF_ASSERT (priv); ret = dict_get_ptr (dict, "peerinfo", VOID (&peerinfo)); if (ret) goto out; //peerinfo should not be in payload dict_del (dict, "peerinfo"); glusterd_get_uuid (&req.uuid); ret = dict_allocate_and_serialize (dict, &req.dict.dict_val, &req.dict.dict_len); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SERL_LENGTH_GET_FAIL, "Failed to serialize dict " "to request buffer"); goto out; } /* Sending valid transaction ID to peers */ ret = dict_get_bin (dict, "transaction_id", (void **)&txn_id); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_ID_GET_FAIL, "Failed to get transaction id."); goto out; } else { gf_msg_debug (this->name, 0, "Transaction_id = %s", uuid_utoa (*txn_id)); gf_uuid_copy (req.txn_id, *txn_id); } if (!frame) frame = create_frame (this, this->ctx->pool); if (!frame) { ret = -1; goto out; } frame->cookie = GF_CALLOC (1, sizeof(uuid_t), gf_common_mt_uuid_t); if (!frame->cookie) { ret = -1; goto out; } gf_uuid_copy (frame->cookie, req.txn_id); ret = glusterd_submit_request (peerinfo->rpc, &req, frame, peerinfo->mgmt_v3, GLUSTERD_MGMT_V3_LOCK, NULL, this, glusterd_mgmt_v3_lock_peers_cbk, (xdrproc_t)xdr_gd1_mgmt_v3_lock_req); out: gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); if (dict) dict_unref (dict); if (req.dict.dict_val) GF_FREE (req.dict.dict_val); return ret; } int32_t glusterd_mgmt_v3_unlock_peers (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_v3_unlock_req req = {{0},}; int ret = -1; glusterd_peerinfo_t *peerinfo = NULL; glusterd_conf_t *priv = NULL; dict_t *dict = NULL; uuid_t *txn_id = NULL; if (!this) goto out; dict = data; priv = this->private; GF_ASSERT (priv); ret = dict_get_ptr (dict, "peerinfo", VOID (&peerinfo)); if (ret) goto out; //peerinfo should not be in payload dict_del (dict, "peerinfo"); glusterd_get_uuid (&req.uuid); ret = dict_allocate_and_serialize (dict, &req.dict.dict_val, &req.dict.dict_len); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SERL_LENGTH_GET_FAIL, "Failed to serialize dict " "to request buffer"); goto out; } /* Sending valid transaction ID to peers */ ret = dict_get_bin (dict, "transaction_id", (void **)&txn_id); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_ID_GET_FAIL, "Failed to get transaction id."); goto out; } else { gf_msg_debug (this->name, 0, "Transaction_id = %s", uuid_utoa (*txn_id)); gf_uuid_copy (req.txn_id, *txn_id); } if (!frame) frame = create_frame (this, this->ctx->pool); if (!frame) { ret = -1; goto out; } frame->cookie = GF_CALLOC (1, sizeof(uuid_t), gf_common_mt_uuid_t); if (!frame->cookie) { ret = -1; goto out; } gf_uuid_copy (frame->cookie, req.txn_id); ret = glusterd_submit_request (peerinfo->rpc, &req, frame, peerinfo->mgmt_v3, GLUSTERD_MGMT_V3_UNLOCK, NULL, this, glusterd_mgmt_v3_unlock_peers_cbk, (xdrproc_t) xdr_gd1_mgmt_v3_unlock_req); out: gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); if (dict) dict_unref(dict); if (req.dict.dict_val) GF_FREE (req.dict.dict_val); return ret; } int32_t glusterd_cluster_unlock (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_cluster_lock_req req = {{0},}; int ret = -1; glusterd_peerinfo_t *peerinfo = NULL; glusterd_conf_t *priv = NULL; call_frame_t *dummy_frame = NULL; if (!this ) { ret = -1; goto out; } peerinfo = data; priv = this->private; GF_ASSERT (priv); glusterd_get_uuid (&req.uuid); dummy_frame = create_frame (this, this->ctx->pool); if (!dummy_frame) goto out; ret = glusterd_submit_request (peerinfo->rpc, &req, dummy_frame, peerinfo->mgmt, GLUSTERD_MGMT_CLUSTER_UNLOCK, NULL, this, glusterd_cluster_unlock_cbk, (xdrproc_t)xdr_gd1_mgmt_cluster_unlock_req); out: gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); if (ret && dummy_frame) STACK_DESTROY (dummy_frame->root); return ret; } int32_t glusterd_stage_op (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_stage_op_req req = {{0,},}; int ret = -1; glusterd_peerinfo_t *peerinfo = NULL; glusterd_conf_t *priv = NULL; dict_t *dict = NULL; gf_boolean_t is_alloc = _gf_true; uuid_t *txn_id = NULL; if (!this) { goto out; } dict = data; priv = this->private; GF_ASSERT (priv); ret = dict_get_ptr (dict, "peerinfo", VOID (&peerinfo)); if (ret) goto out; //peerinfo should not be in payload dict_del (dict, "peerinfo"); glusterd_get_uuid (&req.uuid); req.op = glusterd_op_get_op (); ret = dict_allocate_and_serialize (dict, &req.buf.buf_val, &req.buf.buf_len); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SERL_LENGTH_GET_FAIL, "Failed to serialize dict " "to request buffer"); goto out; } /* Sending valid transaction ID to peers */ ret = dict_get_bin (dict, "transaction_id", (void **)&txn_id); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_ID_GET_FAIL, "Failed to get transaction id."); goto out; } else { gf_msg_debug (this->name, 0, "Transaction_id = %s", uuid_utoa (*txn_id)); } if (!frame) frame = create_frame (this, this->ctx->pool); if (!frame) { ret = -1; goto out; } frame->cookie = GF_CALLOC (1, sizeof(uuid_t), gf_common_mt_uuid_t); if (!frame->cookie) { ret = -1; goto out; } gf_uuid_copy (frame->cookie, *txn_id); ret = glusterd_submit_request (peerinfo->rpc, &req, frame, peerinfo->mgmt, GLUSTERD_MGMT_STAGE_OP, NULL, this, glusterd_stage_op_cbk, (xdrproc_t)xdr_gd1_mgmt_stage_op_req); out: if ((_gf_true == is_alloc) && req.buf.buf_val) GF_FREE (req.buf.buf_val); gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); return ret; } int32_t glusterd_commit_op (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_commit_op_req req = {{0,},}; int ret = -1; glusterd_peerinfo_t *peerinfo = NULL; glusterd_conf_t *priv = NULL; dict_t *dict = NULL; gf_boolean_t is_alloc = _gf_true; uuid_t *txn_id = NULL; if (!this) { goto out; } dict = data; priv = this->private; GF_ASSERT (priv); ret = dict_get_ptr (dict, "peerinfo", VOID (&peerinfo)); if (ret) goto out; //peerinfo should not be in payload dict_del (dict, "peerinfo"); glusterd_get_uuid (&req.uuid); req.op = glusterd_op_get_op (); ret = dict_allocate_and_serialize (dict, &req.buf.buf_val, &req.buf.buf_len); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SERL_LENGTH_GET_FAIL, "Failed to serialize dict to " "request buffer"); goto out; } /* Sending valid transaction ID to peers */ ret = dict_get_bin (dict, "transaction_id", (void **)&txn_id); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_ID_GET_FAIL, "Failed to get transaction id."); goto out; } else { gf_msg_debug (this->name, 0, "Transaction_id = %s", uuid_utoa (*txn_id)); } if (!frame) frame = create_frame (this, this->ctx->pool); if (!frame) { ret = -1; goto out; } frame->cookie = GF_CALLOC (1, sizeof(uuid_t), gf_common_mt_uuid_t); if (!frame->cookie) { ret = -1; goto out; } gf_uuid_copy (frame->cookie, *txn_id); ret = glusterd_submit_request (peerinfo->rpc, &req, frame, peerinfo->mgmt, GLUSTERD_MGMT_COMMIT_OP, NULL, this, glusterd_commit_op_cbk, (xdrproc_t)xdr_gd1_mgmt_commit_op_req); out: if ((_gf_true == is_alloc) && req.buf.buf_val) GF_FREE (req.buf.buf_val); gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); return ret; } int32_t __glusterd_brick_op_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { gd1_mgmt_brick_op_rsp rsp = {0}; int ret = -1; int32_t op_ret = -1; glusterd_op_sm_event_type_t event_type = GD_OP_EVENT_NONE; call_frame_t *frame = NULL; glusterd_op_brick_rsp_ctx_t *ev_ctx = NULL; dict_t *dict = NULL; int index = 0; glusterd_req_ctx_t *req_ctx = NULL; glusterd_pending_node_t *node = NULL; xlator_t *this = NULL; uuid_t *txn_id = NULL; glusterd_conf_t *priv = NULL; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); GF_ASSERT (req); txn_id = &priv->global_txn_id; frame = myframe; req_ctx = frame->local; if (-1 == req->rpc_status) { rsp.op_ret = -1; rsp.op_errno = EINVAL; /* use standard allocation because to keep uniformity in freeing it */ rsp.op_errstr = strdup ("error"); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gd1_mgmt_brick_op_rsp); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_RES_DECODE_FAIL, "Failed to decode brick op " "response received"); rsp.op_ret = -1; rsp.op_errno = EINVAL; rsp.op_errstr = strdup ("Unable to decode brick op response"); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } if (rsp.output.output_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (rsp.output.output_val, rsp.output.output_len, &dict); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "Failed to " "unserialize rsp-buffer to dictionary"); event_type = GD_OP_EVENT_RCVD_RJT; goto out; } else { dict->extra_stdfree = rsp.output.output_val; } } op_ret = rsp.op_ret; /* Add index to rsp_dict for GD_OP_STATUS_VOLUME */ if (GD_OP_STATUS_VOLUME == req_ctx->op) { node = frame->cookie; index = node->index; ret = dict_set_int32 (dict, "index", index); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, "Error setting index on brick status rsp dict"); rsp.op_ret = -1; event_type = GD_OP_EVENT_RCVD_RJT; goto out; } } out: if (req_ctx && req_ctx->dict) { ret = dict_get_bin (req_ctx->dict, "transaction_id", (void **)&txn_id); gf_msg_debug (this->name, -ret, "transaction ID = %s", uuid_utoa (*txn_id)); } ev_ctx = GF_CALLOC (1, sizeof (*ev_ctx), gf_gld_mt_brick_rsp_ctx_t); if (ev_ctx) { if (op_ret) { event_type = GD_OP_EVENT_RCVD_RJT; ev_ctx->op_ret = op_ret; ev_ctx->op_errstr = gf_strdup(rsp.op_errstr); } else { event_type = GD_OP_EVENT_RCVD_ACC; } ev_ctx->pending_node = frame->cookie; ev_ctx->rsp_dict = dict; ev_ctx->commit_ctx = frame->local; ret = glusterd_op_sm_inject_event (event_type, txn_id, ev_ctx); } if (!ret) { glusterd_friend_sm (); glusterd_op_sm (); } if (ret) { if (dict) { dict_unref (dict); } if (ev_ctx) { GF_FREE (ev_ctx->op_errstr); GF_FREE (ev_ctx); } } free (rsp.op_errstr); //malloced by xdr GLUSTERD_STACK_DESTROY (frame); return ret; } int32_t glusterd_brick_op_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe) { return glusterd_big_locked_cbk (req, iov, count, myframe, __glusterd_brick_op_cbk); } int32_t glusterd_brick_op (call_frame_t *frame, xlator_t *this, void *data) { gd1_mgmt_brick_op_req *req = NULL; int ret = 0; int ret1 = 0; glusterd_conf_t *priv = NULL; call_frame_t *dummy_frame = NULL; char *op_errstr = NULL; int pending_bricks = 0; glusterd_pending_node_t *pending_node; glusterd_req_ctx_t *req_ctx = NULL; struct rpc_clnt *rpc = NULL; dict_t *op_ctx = NULL; uuid_t *txn_id = NULL; if (!this) { ret = -1; goto out; } priv = this->private; GF_ASSERT (priv); txn_id = &priv->global_txn_id; req_ctx = data; GF_ASSERT (req_ctx); CDS_INIT_LIST_HEAD (&opinfo.pending_bricks); ret = dict_get_bin (req_ctx->dict, "transaction_id", (void **)&txn_id); if (ret) { gf_msg (this->name, GF_LOG_WARNING, 0, GD_MSG_BRICK_SELECT_FAIL, "Could not get transaction ID from dict, global" "transaction ID = %s", uuid_utoa (*txn_id)); } else { gf_msg_debug (this->name, 0, "transaction ID = %s", uuid_utoa (*txn_id)); } ret = glusterd_op_bricks_select (req_ctx->op, req_ctx->dict, &op_errstr, &opinfo.pending_bricks, NULL); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_BRICK_SELECT_FAIL, "Failed to select bricks " "while performing brick op during 'Volume %s'", gd_op_list[opinfo.op]); opinfo.op_errstr = op_errstr; goto out; } cds_list_for_each_entry (pending_node, &opinfo.pending_bricks, list) { dummy_frame = create_frame (this, this->ctx->pool); if (!dummy_frame) continue; if ((pending_node->type == GD_NODE_NFS) || (pending_node->type == GD_NODE_QUOTAD) || (pending_node->type == GD_NODE_SNAPD) || (pending_node->type == GD_NODE_SCRUB) || ((pending_node->type == GD_NODE_SHD) && (req_ctx->op == GD_OP_STATUS_VOLUME))) { ret = glusterd_node_op_build_payload (req_ctx->op, (gd1_mgmt_brick_op_req **)&req, req_ctx->dict); } else { ret = glusterd_brick_op_build_payload (req_ctx->op, pending_node->node, (gd1_mgmt_brick_op_req **)&req, req_ctx->dict); } if (ret || !req) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_BRICK_OP_PAYLOAD_BUILD_FAIL, "Failed to " "build op payload during " "'Volume %s'", gd_op_list[req_ctx->op]); goto out; } dummy_frame->local = data; dummy_frame->cookie = pending_node; rpc = glusterd_pending_node_get_rpc (pending_node); if (!rpc) { if (pending_node->type == GD_NODE_REBALANCE || pending_node->type == GD_NODE_TIERD) { opinfo.brick_pending_count = 0; ret = 0; GF_FREE (req->input.input_val); GF_FREE (req); req = NULL; GLUSTERD_STACK_DESTROY (dummy_frame); op_ctx = glusterd_op_get_ctx (); if (!op_ctx) goto out; glusterd_defrag_volume_node_rsp (req_ctx->dict, NULL, op_ctx); goto out; } ret = -1; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_RPC_FAILURE, "Brick Op failed " "due to rpc failure."); goto out; } ret = glusterd_submit_request (rpc, req, dummy_frame, priv->gfs_mgmt, req->op, NULL, this, glusterd_brick_op_cbk, (xdrproc_t)xdr_gd1_mgmt_brick_op_req); GF_FREE (req->input.input_val); GF_FREE (req); req = NULL; if (!ret) pending_bricks++; glusterd_pending_node_put_rpc (pending_node); } gf_msg_trace (this->name, 0, "Sent brick op req for operation " "'Volume %s' to %d bricks", gd_op_list[req_ctx->op], pending_bricks); opinfo.brick_pending_count = pending_bricks; out: if (ret) opinfo.op_ret = ret; ret1 = glusterd_set_txn_opinfo (txn_id, &opinfo); if (ret1) gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_SET_FAIL, "Unable to set " "transaction's opinfo"); if (ret) { glusterd_op_sm_inject_event (GD_OP_EVENT_RCVD_RJT, txn_id, data); opinfo.op_ret = ret; } gf_msg_debug (this ? this->name : "glusterd", 0, "Returning %d", ret); return ret; } struct rpc_clnt_procedure gd_brick_actors[GLUSTERD_BRICK_MAXVALUE] = { [GLUSTERD_BRICK_NULL] = {"NULL", NULL }, [GLUSTERD_BRICK_OP] = {"BRICK_OP", glusterd_brick_op}, }; struct rpc_clnt_procedure gd_peer_actors[GLUSTERD_FRIEND_MAXVALUE] = { [GLUSTERD_FRIEND_NULL] = {"NULL", NULL }, [GLUSTERD_PROBE_QUERY] = {"PROBE_QUERY", glusterd_rpc_probe}, [GLUSTERD_FRIEND_ADD] = {"FRIEND_ADD", glusterd_rpc_friend_add}, [GLUSTERD_FRIEND_REMOVE] = {"FRIEND_REMOVE", glusterd_rpc_friend_remove}, [GLUSTERD_FRIEND_UPDATE] = {"FRIEND_UPDATE", glusterd_rpc_friend_update}, }; struct rpc_clnt_procedure gd_mgmt_actors[GLUSTERD_MGMT_MAXVALUE] = { [GLUSTERD_MGMT_NULL] = {"NULL", NULL }, [GLUSTERD_MGMT_CLUSTER_LOCK] = {"CLUSTER_LOCK", glusterd_cluster_lock}, [GLUSTERD_MGMT_CLUSTER_UNLOCK] = {"CLUSTER_UNLOCK", glusterd_cluster_unlock}, [GLUSTERD_MGMT_STAGE_OP] = {"STAGE_OP", glusterd_stage_op}, [GLUSTERD_MGMT_COMMIT_OP] = {"COMMIT_OP", glusterd_commit_op}, }; struct rpc_clnt_procedure gd_mgmt_v3_actors[GLUSTERD_MGMT_V3_MAXVALUE] = { [GLUSTERD_MGMT_V3_NULL] = {"NULL", NULL }, [GLUSTERD_MGMT_V3_LOCK] = {"MGMT_V3_LOCK", glusterd_mgmt_v3_lock_peers}, [GLUSTERD_MGMT_V3_UNLOCK] = {"MGMT_V3_UNLOCK", glusterd_mgmt_v3_unlock_peers}, }; struct rpc_clnt_program gd_mgmt_prog = { .progname = "glusterd mgmt", .prognum = GD_MGMT_PROGRAM, .progver = GD_MGMT_VERSION, .proctable = gd_mgmt_actors, .numproc = GLUSTERD_MGMT_MAXVALUE, }; struct rpc_clnt_program gd_brick_prog = { .progname = "brick operations", .prognum = GD_BRICK_PROGRAM, .progver = GD_BRICK_VERSION, .proctable = gd_brick_actors, .numproc = GLUSTERD_BRICK_MAXVALUE, }; struct rpc_clnt_program gd_peer_prog = { .progname = "Peer mgmt", .prognum = GD_FRIEND_PROGRAM, .progver = GD_FRIEND_VERSION, .proctable = gd_peer_actors, .numproc = GLUSTERD_FRIEND_MAXVALUE, }; struct rpc_clnt_program gd_mgmt_v3_prog = { .progname = "glusterd mgmt v3", .prognum = GD_MGMT_PROGRAM, .progver = GD_MGMT_V3_VERSION, .proctable = gd_mgmt_v3_actors, .numproc = GLUSTERD_MGMT_V3_MAXVALUE, };