glusterfs.git -

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author	Ravishankar N <ravishankar@redhat.com>	2015-01-09 15:36:42 +0000
committer	Niels de Vos <ndevos@redhat.com>	2015-01-15 00:28:20 -0800
commit	6da85222e5e49bcb15c4c8998f26c8dffb6a5b34 (patch)
tree	ece20c14c98273d06335929d95e106741cce340c /cli/src
parent	c4561b6fd90c52667eebec9eecf974b4c0786382 (diff)

api: versioned symbols for glfs_resolve()

A minor fix not addressed in http://review.gluster.org/#/c/9143/. Needed by http://review.gluster.org/#/c/9377/5/ to resolve a merge conflict and for a sucessful compile without warnings about implicit declarations. Change-Id: I4aeb3b53887687096b69516c42a0888c6e137bf6 BUG: 1160709 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/9439 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>

Diffstat (limited to 'cli/src')

0 files changed, 0 insertions, 0 deletions

= gf_strdup (hostname); ctx->req = req; event->ctx = ctx; ret = glusterd_friend_sm_inject_event (event); if (ret) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_EVENT_INJECT_FAIL, "Unable to inject event %d, " "ret = %d", event->event, ret); goto out; } ret = 0; out: rcu_read_unlock (); if (0 != ret) { if (ctx && ctx->hostname) GF_FREE (ctx->hostname); GF_FREE (ctx); if (event) GF_FREE (event->peername); GF_FREE (event); } return ret; } struct args_pack { dict_t *dict; int vol_count; int opt_count; }; static int _build_option_key (dict_t *d, char *k, data_t *v, void *tmp) { char reconfig_key[256] = {0, }; struct args_pack *pack = NULL; int ret = -1; xlator_t *this = NULL; glusterd_conf_t *priv = NULL; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); pack = tmp; if (strcmp (k, GLUSTERD_GLOBAL_OPT_VERSION) == 0) return 0; if (priv->op_version > GD_OP_VERSION_MIN) { if ((strcmp (k, "features.limit-usage") == 0) || (strcmp (k, "features.soft-limit") == 0)) return 0; } /* snap-max-hard-limit and snap-max-soft-limit are system * * options set and managed by snapshot config option. Hence * * they should not be displayed in gluster volume info. * */ if ((strcmp (k, "snap-max-hard-limit") == 0) || (strcmp (k, "snap-max-soft-limit") == 0)) return 0; snprintf (reconfig_key, 256, "volume%d.option.%s", pack->vol_count, k); ret = dict_set_str (pack->dict, reconfig_key, v->data); if (0 == ret) pack->opt_count++; return 0; } int glusterd_add_tier_volume_detail_to_dict (glusterd_volinfo_t *volinfo, dict_t *dict, int count) { int ret = -1; char key[256] = {0,}; GF_ASSERT (volinfo); GF_ASSERT (dict); memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.cold_type", count); ret = dict_set_int32 (dict, key, volinfo->tier_info.cold_type); if (ret) goto out; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.cold_brick_count", count); ret = dict_set_int32 (dict, key, volinfo->tier_info.cold_brick_count); if (ret) goto out; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.cold_dist_count", count); ret = dict_set_int32 (dict, key, volinfo->tier_info.cold_dist_leaf_count); if (ret) goto out; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.cold_replica_count", count); ret = dict_set_int32 (dict, key, volinfo->tier_info.cold_replica_count); if (ret) goto out; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.cold_arbiter_count", count); ret = dict_set_int32 (dict, key, volinfo->arbiter_count); if (ret) goto out; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.cold_disperse_count", count); ret = dict_set_int32 (dict, key, volinfo->tier_info.cold_disperse_count); if (ret) goto out; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.cold_redundancy_count", count); ret = dict_set_int32 (dict, key, volinfo->tier_info.cold_redundancy_count); if (ret) goto out; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.hot_type", count); ret = dict_set_int32 (dict, key, volinfo->tier_info.hot_type); if (ret) goto out; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.hot_brick_count", count); ret = dict_set_int32 (dict, key, volinfo->tier_info.hot_brick_count); if (ret) goto out; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.hot_replica_count", count); ret = dict_set_int32 (dict, key, volinfo->tier_info.hot_replica_count); if (ret) goto out; out: return ret; } int glusterd_add_arbiter_info_to_bricks (glusterd_volinfo_t *volinfo, dict_t *volumes, int count) { char key[256] = {0, }; int i = 0; int start_index = 0; int ret = 0; if (volinfo->type == GF_CLUSTER_TYPE_TIER) { /*TODO: Add info for hot tier once attach tier of arbiter * volumes is supported. */ /* cold tier */ if (volinfo->tier_info.cold_replica_count == 1 || volinfo->arbiter_count != 1) return 0; i = start_index = volinfo->tier_info.hot_brick_count + 1; for (; i <= volinfo->brick_count; i++) { if ((i - start_index + 1) % volinfo->tier_info.cold_replica_count != 0) continue; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.brick%d.isArbiter", count, i); ret = dict_set_int32 (volumes, key, 1); if (ret) return ret; } } else { if (volinfo->replica_count == 1 || volinfo->arbiter_count != 1) return 0; for (i = 1; i <= volinfo->brick_count; i++) { if (i % volinfo->replica_count != 0) continue; memset (key, 0, sizeof (key)); snprintf (key, 256, "volume%d.brick%d.isArbiter", count, i); ret = dict_set_int32 (volumes, key, 1); if (ret) return ret; } } return 0; } int glusterd_add_volume_detail_to_dict (glusterd_volinfo_t *volinfo, dict_t *volumes, int count) { int ret = -1; char key[256] = {0, }; glusterd_brickinfo_t *brickinfo = NULL; char *buf = NULL; int i = 1; dict_t *dict = NULL; glusterd_conf_t *priv = NULL; char *volume_id_str = NULL; struct args_pack pack = {0,}; xlator_t *this = NULL; GF_UNUSED int caps = 0; int32_t len = 0; GF_ASSERT (volinfo); GF_ASSERT (volumes); this = THIS; priv = this->private; GF_ASSERT (priv); snprintf (key, 256, "volume%d.name", count); ret = dict_set_str (volumes, key, volinfo->volname); if (ret) goto out; snprintf (key, 256, "volume%d.type", count); ret = dict_set_int32 (volumes, key, volinfo->type); if (ret) goto out; snprintf (key, 256, "volume%d.status", count); ret = dict_set_int32 (volumes, key, volinfo->status); if (ret) goto out; snprintf (key, 256, "volume%d.brick_count", count); ret = dict_set_int32 (volumes, key, volinfo->brick_count); if (ret) goto out; snprintf (key, 256, "volume%d.hot_brick_count", count); ret = dict_set_int32 (volumes, key, volinfo->tier_info.hot_brick_count); if (ret) goto out; if (volinfo->type == GF_CLUSTER_TYPE_TIER) { ret = glusterd_add_tier_volume_detail_to_dict (volinfo, volumes, count); if (ret) goto out; } snprintf (key, 256, "volume%d.dist_count", count); ret = dict_set_int32 (volumes, key, volinfo->dist_leaf_count); if (ret) goto out; snprintf (key, 256, "volume%d.stripe_count", count); ret = dict_set_int32 (volumes, key, volinfo->stripe_count); if (ret) goto out; snprintf (key, 256, "volume%d.replica_count", count); ret = dict_set_int32 (volumes, key, volinfo->replica_count); if (ret) goto out; snprintf (key, 256, "volume%d.disperse_count", count); ret = dict_set_int32 (volumes, key, volinfo->disperse_count); if (ret) goto out; snprintf (key, 256, "volume%d.redundancy_count", count); ret = dict_set_int32 (volumes, key, volinfo->redundancy_count); if (ret) goto out; snprintf (key, sizeof (key), "volume%d.arbiter_count", count); ret = dict_set_int32 (volumes, key, volinfo->arbiter_count); if (ret) goto out; snprintf (key, 256, "volume%d.transport", count); ret = dict_set_int32 (volumes, key, volinfo->transport_type); if (ret) goto out; volume_id_str = gf_strdup (uuid_utoa (volinfo->volume_id)); if (!volume_id_str) goto out; snprintf (key, sizeof (key), "volume%d.volume_id", count); ret = dict_set_dynstr (volumes, key, volume_id_str); if (ret) goto out; snprintf (key, 256, "volume%d.rebalance", count); ret = dict_set_int32 (volumes, key, volinfo->rebal.defrag_cmd); if (ret) goto out; snprintf (key, 256, "volume%d.snap_count", count); ret = dict_set_int32 (volumes, key, volinfo->snap_count); if (ret) goto out; #ifdef HAVE_BD_XLATOR if (volinfo->caps) { caps = 0; snprintf (key, 256, "volume%d.xlator0", count); buf = GF_MALLOC (256, gf_common_mt_char); if (!buf) { ret = ENOMEM; goto out; } if (volinfo->caps & CAPS_BD) snprintf (buf, 256, "BD"); ret = dict_set_dynstr (volumes, key, buf); if (ret) { GF_FREE (buf); goto out; } if (volinfo->caps & CAPS_THIN) { snprintf (key, 256, "volume%d.xlator0.caps%d", count, caps++); buf = GF_MALLOC (256, gf_common_mt_char); if (!buf) { ret = ENOMEM; goto out; } snprintf (buf, 256, "thin"); ret = dict_set_dynstr (volumes, key, buf); if (ret) { GF_FREE (buf); goto out; } } if (volinfo->caps & CAPS_OFFLOAD_COPY) { snprintf (key, 256, "volume%d.xlator0.caps%d", count, caps++); buf = GF_MALLOC (256, gf_common_mt_char); if (!buf) { ret = ENOMEM; goto out; } snprintf (buf, 256, "offload_copy"); ret = dict_set_dynstr (volumes, key, buf); if (ret) { GF_FREE (buf); goto out; } } if (volinfo->caps & CAPS_OFFLOAD_SNAPSHOT) { snprintf (key, 256, "volume%d.xlator0.caps%d", count, caps++); buf = GF_MALLOC (256, gf_common_mt_char); if (!buf) { ret = ENOMEM; goto out; } snprintf (buf, 256, "offload_snapshot"); ret = dict_set_dynstr (volumes, key, buf); if (ret) { GF_FREE (buf); goto out; } } if (volinfo->caps & CAPS_OFFLOAD_ZERO) { snprintf (key, 256, "volume%d.xlator0.caps%d", count, caps++); buf = GF_MALLOC (256, gf_common_mt_char); if (!buf) { ret = ENOMEM; goto out; } snprintf (buf, 256, "offload_zerofill"); ret = dict_set_dynstr (volumes, key, buf); if (ret) { GF_FREE (buf); goto out; } } } #endif cds_list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) { char brick[1024] = {0,}; char brick_uuid[64] = {0,}; snprintf (key, 256, "volume%d.brick%d", count, i); len = snprintf (brick, 1024, "%s:%s", brickinfo->hostname, brickinfo->path); if ((len < 0) || (len >= 1024)) { ret = -1; goto out; } buf = gf_strdup (brick); ret = dict_set_dynstr (volumes, key, buf); if (ret) goto out; snprintf (key, 256, "volume%d.brick%d.uuid", count, i); snprintf (brick_uuid, 64, "%s", uuid_utoa (brickinfo->uuid)); buf = gf_strdup (brick_uuid); if (!buf) goto out; ret = dict_set_dynstr (volumes, key, buf); if (ret) goto out; #ifdef HAVE_BD_XLATOR if (volinfo->caps & CAPS_BD) { snprintf (key, 256, "volume%d.vg%d", count, i); snprintf (brick, 1024, "%s", brickinfo->vg); buf = gf_strdup (brick); ret = dict_set_dynstr (volumes, key, buf); if (ret) goto out; } #endif i++; } ret = glusterd_add_arbiter_info_to_bricks (volinfo, volumes, count); if (ret) goto out; dict = volinfo->dict; if (!dict) { ret = 0; goto out; } pack.dict = volumes; pack.vol_count = count; pack.opt_count = 0; dict_foreach (dict, _build_option_key, (void *) &pack); dict_foreach (priv->opts, _build_option_key, &pack); snprintf (key, 256, "volume%d.opt_count", pack.vol_count); ret = dict_set_int32 (volumes, key, pack.opt_count); out: return ret; } int32_t glusterd_op_txn_begin (rpcsvc_request_t *req, glusterd_op_t op, void *ctx, char *err_str, size_t err_len) { int32_t ret = -1; dict_t *dict = NULL; xlator_t *this = NULL; glusterd_conf_t *priv = NULL; int32_t locked = 0; char *tmp = NULL; char *volname = NULL; uuid_t *txn_id = NULL; glusterd_op_info_t txn_op_info = {{0},}; glusterd_op_sm_event_type_t event_type = GD_OP_EVENT_NONE; uint32_t op_errno = 0; uint32_t timeout = 0; GF_ASSERT (req); GF_ASSERT ((op > GD_OP_NONE) && (op < GD_OP_MAX)); GF_ASSERT (NULL != ctx); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); dict = ctx; /* Generate a transaction-id for this operation and * save it in the dict. This transaction id distinguishes * each transaction, and helps separate opinfos in the * op state machine. */ ret = glusterd_generate_txn_id (dict, &txn_id); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_IDGEN_FAIL, "Failed to generate transaction id"); goto out; } /* Save the MY_UUID as the originator_uuid. This originator_uuid * will be used by is_origin_glusterd() to determine if a node * is the originator node for a command. */ ret = glusterd_set_originator_uuid (dict); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_UUID_SET_FAIL, "Failed to set originator_uuid."); goto out; } /* Based on the op_version, acquire a cluster or mgmt_v3 lock */ if (priv->op_version < GD_OP_VERSION_3_6_0) { ret = glusterd_lock (MY_UUID); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_GLUSTERD_LOCK_FAIL, "Unable to acquire lock on localhost, ret: %d", ret); snprintf (err_str, err_len, "Another transaction is in progress. " "Please try again after some time."); goto out; } } else { /* If no volname is given as a part of the command, locks will * not be held */ ret = dict_get_str (dict, "volname", &tmp); if (ret) { gf_msg (this->name, GF_LOG_INFO, errno, GD_MSG_DICT_GET_FAILED, "No Volume name present. " "Locks not being held."); goto local_locking_done; } else { /* Use a copy of volname, as cli response will be * sent before the unlock, and the volname in the * dict, might be removed */ volname = gf_strdup (tmp); if (!volname) goto out; } /* Cli will add timeout key to dict if the default timeout is * other than 2 minutes. Here we use this value to check whether * mgmt_v3_lock_timeout should be set to default value or we * need to change the value according to timeout value * i.e, timeout + 120 seconds. */ ret = dict_get_uint32 (dict, "timeout", &timeout); if (!ret) priv->mgmt_v3_lock_timeout = timeout + 120; ret = glusterd_mgmt_v3_lock (volname, MY_UUID, &op_errno, "vol"); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_MGMTV3_LOCK_GET_FAIL, "Unable to acquire lock for %s", volname); snprintf (err_str, err_len, "Another transaction is in progress for %s. " "Please try again after some time.", volname); goto out; } } locked = 1; gf_msg_debug (this->name, 0, "Acquired lock on localhost"); local_locking_done: /* If no volname is given as a part of the command, locks will * not be held, hence sending stage event. */ if (volname || (priv->op_version < GD_OP_VERSION_3_6_0)) event_type = GD_OP_EVENT_START_LOCK; else { txn_op_info.state.state = GD_OP_STATE_LOCK_SENT; event_type = GD_OP_EVENT_ALL_ACC; } /* Save opinfo for this transaction with the transaction id */ glusterd_txn_opinfo_init (&txn_op_info, NULL, &op, ctx, req); ret = glusterd_set_txn_opinfo (txn_id, &txn_op_info); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_SET_FAIL, "Unable to set transaction's opinfo"); if (ctx) dict_unref (ctx); goto out; } ret = glusterd_op_sm_inject_event (event_type, txn_id, ctx); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_EVENT_INJECT_FAIL, "Failed to acquire cluster" " lock."); goto out; } out: if (locked && ret) { /* Based on the op-version, we release the * cluster or mgmt_v3 lock */ if (priv->op_version < GD_OP_VERSION_3_6_0) glusterd_unlock (MY_UUID); else { ret = glusterd_mgmt_v3_unlock (volname, MY_UUID, "vol"); if (ret) gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_MGMTV3_UNLOCK_FAIL, "Unable to release lock for %s", volname); ret = -1; } } if (volname) GF_FREE (volname); gf_msg_debug (this->name, 0, "Returning %d", ret); return ret; } int __glusterd_handle_cluster_lock (rpcsvc_request_t *req) { dict_t *op_ctx = NULL; int32_t ret = -1; gd1_mgmt_cluster_lock_req lock_req = {{0},}; glusterd_op_lock_ctx_t *ctx = NULL; glusterd_op_sm_event_type_t op = GD_OP_EVENT_LOCK; glusterd_op_info_t txn_op_info = {{0},}; glusterd_conf_t *priv = NULL; uuid_t *txn_id = NULL; xlator_t *this = NULL; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); GF_ASSERT (req); txn_id = &priv->global_txn_id; ret = xdr_to_generic (req->msg[0], &lock_req, (xdrproc_t)xdr_gd1_mgmt_cluster_lock_req); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode lock " "request received from peer"); req->rpc_err = GARBAGE_ARGS; goto out; } gf_msg_debug (this->name, 0, "Received LOCK from uuid: %s", uuid_utoa (lock_req.uuid)); rcu_read_lock (); ret = (glusterd_peerinfo_find_by_uuid (lock_req.uuid) == NULL); rcu_read_unlock (); if (ret) { gf_msg (this->name, GF_LOG_WARNING, 0, GD_MSG_PEER_NOT_FOUND, "%s doesn't " "belong to the cluster. Ignoring request.", uuid_utoa (lock_req.uuid)); ret = -1; goto out; } ctx = GF_CALLOC (1, sizeof (*ctx), gf_gld_mt_op_lock_ctx_t); if (!ctx) { //respond here return -1; } gf_uuid_copy (ctx->uuid, lock_req.uuid); ctx->req = req; ctx->dict = NULL; op_ctx = dict_new (); if (!op_ctx) { gf_msg (this->name, GF_LOG_ERROR, ENOMEM, GD_MSG_DICT_CREATE_FAIL, "Unable to set new dict"); goto out; } glusterd_txn_opinfo_init (&txn_op_info, NULL, &op, op_ctx, req); ret = glusterd_set_txn_opinfo (txn_id, &txn_op_info); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_SET_FAIL, "Unable to set transaction's opinfo"); dict_unref (txn_op_info.op_ctx); goto out; } ret = glusterd_op_sm_inject_event (GD_OP_EVENT_LOCK, txn_id, ctx); if (ret) gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_EVENT_INJECT_FAIL, "Failed to inject event GD_OP_EVENT_LOCK"); out: gf_msg_debug (this->name, 0, "Returning %d", ret); glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_cluster_lock (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_cluster_lock); } static int glusterd_req_ctx_create (rpcsvc_request_t *rpc_req, int op, uuid_t uuid, char *buf_val, size_t buf_len, gf_gld_mem_types_t mem_type, glusterd_req_ctx_t **req_ctx_out) { int ret = -1; char str[50] = {0,}; glusterd_req_ctx_t *req_ctx = NULL; dict_t *dict = NULL; xlator_t *this = NULL; this = THIS; GF_ASSERT (this); gf_uuid_unparse (uuid, str); gf_msg_debug (this->name, 0, "Received op from uuid %s", str); dict = dict_new (); if (!dict) goto out; req_ctx = GF_CALLOC (1, sizeof (*req_ctx), mem_type); if (!req_ctx) { goto out; } gf_uuid_copy (req_ctx->uuid, uuid); req_ctx->op = op; ret = dict_unserialize (buf_val, buf_len, &dict); if (ret) { gf_msg (this->name, GF_LOG_WARNING, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to unserialize the dictionary"); goto out; } req_ctx->dict = dict; req_ctx->req = rpc_req; *req_ctx_out = req_ctx; ret = 0; out: if (ret) { if (dict) dict_unref (dict); GF_FREE (req_ctx); } return ret; } int __glusterd_handle_stage_op (rpcsvc_request_t *req) { int32_t ret = -1; glusterd_req_ctx_t *req_ctx = NULL; gd1_mgmt_stage_op_req op_req = {{0},}; xlator_t *this = NULL; uuid_t *txn_id = NULL; glusterd_op_info_t txn_op_info = {{0},}; glusterd_op_sm_state_info_t state = {0,}; 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; ret = xdr_to_generic (req->msg[0], &op_req, (xdrproc_t)xdr_gd1_mgmt_stage_op_req); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode stage " "request received from peer"); req->rpc_err = GARBAGE_ARGS; goto out; } ret = glusterd_req_ctx_create (req, op_req.op, op_req.uuid, op_req.buf.buf_val, op_req.buf.buf_len, gf_gld_mt_op_stage_ctx_t, &req_ctx); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_CTX_CREATE_FAIL, "Failed to create req_ctx"); goto out; } ret = dict_get_bin (req_ctx->dict, "transaction_id", (void **)&txn_id); gf_msg_debug (this->name, 0, "transaction ID = %s", uuid_utoa (*txn_id)); rcu_read_lock (); ret = (glusterd_peerinfo_find_by_uuid (op_req.uuid) == NULL); rcu_read_unlock (); if (ret) { gf_msg (this->name, GF_LOG_WARNING, 0, GD_MSG_PEER_NOT_FOUND, "%s doesn't " "belong to the cluster. Ignoring request.", uuid_utoa (op_req.uuid)); ret = -1; goto out; } /* In cases where there is no volname, the receivers won't have a * transaction opinfo created, as for those operations, the locking * phase where the transaction opinfos are created, won't be called. */ ret = glusterd_get_txn_opinfo (txn_id, &txn_op_info); if (ret) { gf_msg_debug (this->name, 0, "No transaction's opinfo set"); state.state = GD_OP_STATE_LOCKED; glusterd_txn_opinfo_init (&txn_op_info, &state, &op_req.op, req_ctx->dict, req); txn_op_info.skip_locking = _gf_true; ret = glusterd_set_txn_opinfo (txn_id, &txn_op_info); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_TRANS_OPINFO_SET_FAIL, "Unable to set transaction's opinfo"); dict_unref (req_ctx->dict); goto out; } } ret = glusterd_op_sm_inject_event (GD_OP_EVENT_STAGE_OP, txn_id, req_ctx); if (ret) gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_EVENT_INJECT_FAIL, "Failed to inject event GD_OP_EVENT_STAGE_OP"); out: free (op_req.buf.buf_val);//malloced by xdr glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_stage_op (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_stage_op); } int __glusterd_handle_commit_op (rpcsvc_request_t *req) { int32_t ret = -1; glusterd_req_ctx_t *req_ctx = NULL; gd1_mgmt_commit_op_req op_req = {{0},}; 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; ret = xdr_to_generic (req->msg[0], &op_req, (xdrproc_t)xdr_gd1_mgmt_commit_op_req); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode commit " "request received from peer"); req->rpc_err = GARBAGE_ARGS; goto out; } rcu_read_lock (); ret = (glusterd_peerinfo_find_by_uuid (op_req.uuid) == NULL); rcu_read_unlock (); if (ret) { gf_msg (this->name, GF_LOG_WARNING, 0, GD_MSG_PEER_NOT_FOUND, "%s doesn't " "belong to the cluster. Ignoring request.", uuid_utoa (op_req.uuid)); ret = -1; goto out; } //the structures should always be equal GF_ASSERT (sizeof (gd1_mgmt_commit_op_req) == sizeof (gd1_mgmt_stage_op_req)); ret = glusterd_req_ctx_create (req, op_req.op, op_req.uuid, op_req.buf.buf_val, op_req.buf.buf_len, gf_gld_mt_op_commit_ctx_t, &req_ctx); if (ret) goto out; ret = dict_get_bin (req_ctx->dict, "transaction_id", (void **)&txn_id); gf_msg_debug (this->name, 0, "transaction ID = %s", uuid_utoa (*txn_id)); ret = glusterd_op_sm_inject_event (GD_OP_EVENT_COMMIT_OP, txn_id, req_ctx); out: free (op_req.buf.buf_val);//malloced by xdr glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_commit_op (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_commit_op); } int __glusterd_handle_cli_probe (rpcsvc_request_t *req) { int32_t ret = -1; gf_cli_req cli_req = {{0,},}; glusterd_peerinfo_t *peerinfo = NULL; gf_boolean_t run_fsm = _gf_true; xlator_t *this = NULL; char *bind_name = NULL; dict_t *dict = NULL; char *hostname = NULL; int port = 0; int op_errno = 0; GF_ASSERT (req); this = THIS; ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf_cli_req); if (ret < 0) { //failed to decode msg; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "xdr decoding error"); req->rpc_err = GARBAGE_ARGS; goto out; } if (cli_req.dict.dict_len) { dict = dict_new (); ret = dict_unserialize (cli_req.dict.dict_val, cli_req.dict.dict_len, &dict); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "Failed to " "unserialize req-buffer to dictionary"); goto out; } } ret = dict_get_str (dict, "hostname", &hostname); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_HOSTNAME_NOTFOUND_IN_DICT, "Failed to get hostname"); goto out; } ret = dict_get_int32 (dict, "port", &port); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_PORT_NOTFOUND_IN_DICT, "Failed to get port"); goto out; } if (glusterd_is_any_volume_in_server_quorum (this) && !does_gd_meet_server_quorum (this)) { glusterd_xfer_cli_probe_resp (req, -1, GF_PROBE_QUORUM_NOT_MET, NULL, hostname, port, dict); gf_msg (this->name, GF_LOG_CRITICAL, 0, GD_MSG_SERVER_QUORUM_NOT_MET, "Server quorum not met. Rejecting operation."); ret = 0; goto out; } gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_CLI_REQ_RECVD, "Received CLI probe req %s %d", hostname, port); if (dict_get_str(this->options,"transport.socket.bind-address", &bind_name) == 0) { gf_msg_debug ("glusterd", 0, "only checking probe address vs. bind address"); ret = gf_is_same_address (bind_name, hostname); } else { ret = gf_is_local_addr (hostname); } if (ret) { glusterd_xfer_cli_probe_resp (req, 0, GF_PROBE_LOCALHOST, NULL, hostname, port, dict); ret = 0; goto out; } rcu_read_lock (); peerinfo = glusterd_peerinfo_find_by_hostname (hostname); ret = (peerinfo && gd_peer_has_address (peerinfo, hostname)); rcu_read_unlock (); if (ret) { gf_msg_debug ("glusterd", 0, "Probe host %s port %d " "already a peer", hostname, port); glusterd_xfer_cli_probe_resp (req, 0, GF_PROBE_FRIEND, NULL, hostname, port, dict); ret = 0; goto out; } ret = glusterd_probe_begin (req, hostname, port, dict, &op_errno); if (ret == GLUSTERD_CONNECTION_AWAITED) { //fsm should be run after connection establishes run_fsm = _gf_false; ret = 0; } else if (ret == -1) { glusterd_xfer_cli_probe_resp (req, -1, op_errno, NULL, hostname, port, dict); goto out; } out: free (cli_req.dict.dict_val); if (run_fsm) { glusterd_friend_sm (); glusterd_op_sm (); } return ret; } int glusterd_handle_cli_probe (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_cli_probe); } int __glusterd_handle_cli_deprobe (rpcsvc_request_t *req) { int32_t ret = -1; gf_cli_req cli_req = {{0,},}; uuid_t uuid = {0}; int op_errno = 0; xlator_t *this = NULL; glusterd_conf_t *priv = NULL; dict_t *dict = NULL; char *hostname = NULL; int port = 0; int flags = 0; glusterd_volinfo_t *volinfo = NULL; glusterd_volinfo_t *tmp = NULL; glusterd_snap_t *snapinfo = NULL; glusterd_snap_t *tmpsnap = NULL; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); GF_ASSERT (req); ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf_cli_req); if (ret < 0) { //failed to decode msg; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode " "request received from cli"); req->rpc_err = GARBAGE_ARGS; goto out; } if (cli_req.dict.dict_len) { dict = dict_new (); ret = dict_unserialize (cli_req.dict.dict_val, cli_req.dict.dict_len, &dict); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "Failed to " "unserialize req-buffer to dictionary"); goto out; } } gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_CLI_REQ_RECVD, "Received CLI deprobe req"); ret = dict_get_str (dict, "hostname", &hostname); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_HOSTNAME_NOTFOUND_IN_DICT, "Failed to get hostname"); goto out; } ret = dict_get_int32 (dict, "port", &port); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_PORT_NOTFOUND_IN_DICT, "Failed to get port"); goto out; } ret = dict_get_int32 (dict, "flags", &flags); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_FLAGS_NOTFOUND_IN_DICT, "Failed to get flags"); goto out; } ret = glusterd_hostname_to_uuid (hostname, uuid); if (ret) { op_errno = GF_DEPROBE_NOT_FRIEND; goto out; } if (!gf_uuid_compare (uuid, MY_UUID)) { op_errno = GF_DEPROBE_LOCALHOST; ret = -1; goto out; } if (!(flags & GF_CLI_FLAG_OP_FORCE)) { /* Check if peers are connected, except peer being * detached*/ if (!glusterd_chk_peers_connected_befriended (uuid)) { ret = -1; op_errno = GF_DEPROBE_FRIEND_DOWN; goto out; } } /* Check for if volumes exist with some bricks on the peer being * detached. It's not a problem if a volume contains none or all * of its bricks on the peer being detached */ cds_list_for_each_entry_safe (volinfo, tmp, &priv->volumes, vol_list) { ret = glusterd_friend_contains_vol_bricks (volinfo, uuid); if (ret == 1) { op_errno = GF_DEPROBE_BRICK_EXIST; goto out; } } cds_list_for_each_entry_safe (snapinfo, tmpsnap, &priv->snapshots, snap_list) { ret = glusterd_friend_contains_snap_bricks (snapinfo, uuid); if (ret == 1) { op_errno = GF_DEPROBE_SNAP_BRICK_EXIST; goto out; } } if (!(flags & GF_CLI_FLAG_OP_FORCE)) { if (glusterd_is_any_volume_in_server_quorum (this) && !does_gd_meet_server_quorum (this)) { gf_msg (this->name, GF_LOG_CRITICAL, 0, GD_MSG_SERVER_QUORUM_NOT_MET, "Server quorum not met. Rejecting operation."); ret = -1; op_errno = GF_DEPROBE_QUORUM_NOT_MET; goto out; } } if (!gf_uuid_is_null (uuid)) { ret = glusterd_deprobe_begin (req, hostname, port, uuid, dict, &op_errno); } else { ret = glusterd_deprobe_begin (req, hostname, port, NULL, dict, &op_errno); } out: free (cli_req.dict.dict_val); if (ret) { ret = glusterd_xfer_cli_deprobe_resp (req, ret, op_errno, NULL, hostname, dict); } glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_cli_deprobe (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_cli_deprobe); } int __glusterd_handle_cli_list_friends (rpcsvc_request_t *req) { int32_t ret = -1; gf1_cli_peer_list_req cli_req = {0,}; dict_t *dict = NULL; GF_ASSERT (req); ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf1_cli_peer_list_req); if (ret < 0) { //failed to decode msg; gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode " "request received from cli"); req->rpc_err = GARBAGE_ARGS; goto out; } gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_CLI_REQ_RECVD, "Received cli list req"); if (cli_req.dict.dict_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (cli_req.dict.dict_val, cli_req.dict.dict_len, &dict); if (ret < 0) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize req-buffer to dictionary"); goto out; } else { dict->extra_stdfree = cli_req.dict.dict_val; } } ret = glusterd_list_friends (req, dict, cli_req.flags); out: if (dict) dict_unref (dict); glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_cli_list_friends (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_cli_list_friends); } static int __glusterd_handle_cli_get_volume (rpcsvc_request_t *req) { int32_t ret = -1; gf_cli_req cli_req = {{0,}}; int32_t flags = 0; dict_t *dict = NULL; xlator_t *this = NULL; GF_ASSERT (req); this = THIS; ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf_cli_req); if (ret < 0) { //failed to decode msg; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode " "request received from cli"); req->rpc_err = GARBAGE_ARGS; goto out; } gf_msg (this->name, GF_LOG_INFO, 0, GD_MSG_GET_VOL_REQ_RCVD, "Received get vol req"); if (cli_req.dict.dict_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (cli_req.dict.dict_val, cli_req.dict.dict_len, &dict); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize req-buffer to dictionary"); goto out; } else { dict->extra_stdfree = cli_req.dict.dict_val; } } ret = dict_get_int32 (dict, "flags", &flags); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_FLAGS_NOTFOUND_IN_DICT, "failed to get flags"); goto out; } ret = glusterd_get_volumes (req, dict, flags); out: if (dict) dict_unref (dict); glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_cli_get_volume (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_cli_get_volume); } int __glusterd_handle_cli_uuid_reset (rpcsvc_request_t *req) { int ret = -1; dict_t *dict = NULL; xlator_t *this = NULL; glusterd_conf_t *priv = NULL; uuid_t uuid = {0}; gf_cli_rsp rsp = {0,}; gf_cli_req cli_req = {{0,}}; char msg_str[2048] = {0,}; GF_ASSERT (req); this = THIS; priv = this->private; GF_ASSERT (priv); ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf_cli_req); if (ret < 0) { //failed to decode msg; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode " "request received from cli"); req->rpc_err = GARBAGE_ARGS; goto out; } gf_msg_debug ("glusterd", 0, "Received uuid reset req"); if (cli_req.dict.dict_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (cli_req.dict.dict_val, cli_req.dict.dict_len, &dict); if (ret < 0) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize req-buffer to dictionary"); snprintf (msg_str, sizeof (msg_str), "Unable to decode " "the buffer"); goto out; } else { dict->extra_stdfree = cli_req.dict.dict_val; } } /* In the above section if dict_unserialize is successful, ret is set * to zero. */ ret = -1; // Do not allow peer reset if there are any volumes in the cluster if (!cds_list_empty (&priv->volumes)) { snprintf (msg_str, sizeof (msg_str), "volumes are already " "present in the cluster. Resetting uuid is not " "allowed"); gf_msg (this->name, GF_LOG_WARNING, 0, GD_MSG_VOLS_ALREADY_PRESENT, "%s", msg_str); goto out; } // Do not allow peer reset if trusted storage pool is already formed if (!cds_list_empty (&priv->peers)) { snprintf (msg_str, sizeof (msg_str),"trusted storage pool " "has been already formed. Please detach this peer " "from the pool and reset its uuid."); gf_msg (this->name, GF_LOG_WARNING, 0, GD_MSG_TSP_ALREADY_FORMED, "%s", msg_str); goto out; } gf_uuid_copy (uuid, priv->uuid); ret = glusterd_uuid_generate_save (); if (!gf_uuid_compare (uuid, MY_UUID)) { snprintf (msg_str, sizeof (msg_str), "old uuid and the new uuid" " are same. Try gluster peer reset again"); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_UUIDS_SAME_RETRY, "%s", msg_str); ret = -1; goto out; } out: if (ret) { rsp.op_ret = -1; if (msg_str[0] == '\0') snprintf (msg_str, sizeof (msg_str), "Operation " "failed"); rsp.op_errstr = msg_str; ret = 0; } else { rsp.op_errstr = ""; } glusterd_to_cli (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gf_cli_rsp, dict); return ret; } int glusterd_handle_cli_uuid_reset (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_cli_uuid_reset); } int __glusterd_handle_cli_uuid_get (rpcsvc_request_t *req) { int ret = -1; dict_t *dict = NULL; dict_t *rsp_dict = NULL; xlator_t *this = NULL; glusterd_conf_t *priv = NULL; gf_cli_rsp rsp = {0,}; gf_cli_req cli_req = {{0,}}; char msg_str[2048] = {0,}; char uuid_str[64] = {0,}; GF_ASSERT (req); this = THIS; priv = this->private; GF_ASSERT (priv); ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf_cli_req); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode " "request received from cli"); req->rpc_err = GARBAGE_ARGS; goto out; } gf_msg_debug ("glusterd", 0, "Received uuid get req"); if (cli_req.dict.dict_len) { dict = dict_new (); if (!dict) { ret = -1; goto out; } ret = dict_unserialize (cli_req.dict.dict_val, cli_req.dict.dict_len, &dict); if (ret < 0) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize req-buffer to dictionary"); snprintf (msg_str, sizeof (msg_str), "Unable to decode " "the buffer"); goto out; } else { dict->extra_stdfree = cli_req.dict.dict_val; } } rsp_dict = dict_new (); if (!rsp_dict) { ret = -1; goto out; } uuid_utoa_r (MY_UUID, uuid_str); ret = dict_set_str (rsp_dict, "uuid", uuid_str); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, "Failed to set uuid in " "dictionary."); goto out; } ret = dict_allocate_and_serialize (rsp_dict, &rsp.dict.dict_val, &rsp.dict.dict_len); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SERL_LENGTH_GET_FAIL, "Failed to serialize " "dictionary."); goto out; } ret = 0; out: if (ret) { rsp.op_ret = -1; if (msg_str[0] == '\0') snprintf (msg_str, sizeof (msg_str), "Operation " "failed"); rsp.op_errstr = msg_str; } else { rsp.op_errstr = ""; } glusterd_to_cli (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gf_cli_rsp, dict); return 0; } int glusterd_handle_cli_uuid_get (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_cli_uuid_get); } int __glusterd_handle_cli_list_volume (rpcsvc_request_t *req) { int ret = -1; dict_t *dict = NULL; glusterd_conf_t *priv = NULL; glusterd_volinfo_t *volinfo = NULL; int count = 0; char key[1024] = {0,}; gf_cli_rsp rsp = {0,}; GF_ASSERT (req); priv = THIS->private; GF_ASSERT (priv); dict = dict_new (); if (!dict) goto out; cds_list_for_each_entry (volinfo, &priv->volumes, vol_list) { memset (key, 0, sizeof (key)); snprintf (key, sizeof (key), "volume%d", count); ret = dict_set_str (dict, key, volinfo->volname); if (ret) goto out; count++; } ret = dict_set_int32 (dict, "count", count); if (ret) goto out; ret = dict_allocate_and_serialize (dict, &rsp.dict.dict_val, &rsp.dict.dict_len); if (ret) goto out; ret = 0; out: rsp.op_ret = ret; if (ret) rsp.op_errstr = "Error listing volumes"; else rsp.op_errstr = ""; glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gf_cli_rsp); ret = 0; if (dict) dict_unref (dict); glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_cli_list_volume (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_cli_list_volume); } int32_t glusterd_op_begin (rpcsvc_request_t *req, glusterd_op_t op, void *ctx, char *err_str, size_t err_len) { int ret = -1; ret = glusterd_op_txn_begin (req, op, ctx, err_str, err_len); return ret; } static int __glusterd_handle_reset_volume (rpcsvc_request_t *req) { int32_t ret = -1; gf_cli_req cli_req = {{0,}}; dict_t *dict = NULL; glusterd_op_t cli_op = GD_OP_RESET_VOLUME; char *volname = NULL; char err_str[2048] = {0,}; xlator_t *this = NULL; GF_ASSERT (req); this = THIS; GF_ASSERT (this); gf_msg (this->name, GF_LOG_INFO, 0, 0, "Received reset vol req"); ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf_cli_req); if (ret < 0) { snprintf (err_str, sizeof (err_str), "Failed to decode request " "received from cli"); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "%s", err_str); req->rpc_err = GARBAGE_ARGS; goto out; } if (cli_req.dict.dict_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (cli_req.dict.dict_val, cli_req.dict.dict_len, &dict); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize req-buffer to dictionary"); snprintf (err_str, sizeof (err_str), "Unable to decode " "the command"); goto out; } else { dict->extra_stdfree = cli_req.dict.dict_val; } } ret = dict_get_str (dict, "volname", &volname); if (ret) { snprintf (err_str, sizeof (err_str), "Failed to get volume " "name"); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_VOLNAME_NOTFOUND_IN_DICT, "%s", err_str); goto out; } gf_msg_debug (this->name, 0, "Received volume reset request for " "volume %s", volname); ret = glusterd_op_begin_synctask (req, GD_OP_RESET_VOLUME, dict); out: if (ret) { if (err_str[0] == '\0') snprintf (err_str, sizeof (err_str), "Operation failed"); ret = glusterd_op_send_cli_response (cli_op, ret, 0, req, dict, err_str); } return ret; } int glusterd_handle_reset_volume (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_reset_volume); } int __glusterd_handle_set_volume (rpcsvc_request_t *req) { int32_t ret = -1; gf_cli_req cli_req = {{0,}}; dict_t *dict = NULL; glusterd_op_t cli_op = GD_OP_SET_VOLUME; char *key = NULL; char *value = NULL; char *volname = NULL; char *op_errstr = NULL; gf_boolean_t help = _gf_false; char err_str[2048] = {0,}; xlator_t *this = NULL; this = THIS; GF_ASSERT (this); GF_ASSERT (req); ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf_cli_req); if (ret < 0) { snprintf (err_str, sizeof (err_str), "Failed to decode " "request received from cli"); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "%s", err_str); req->rpc_err = GARBAGE_ARGS; goto out; } if (cli_req.dict.dict_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (cli_req.dict.dict_val, cli_req.dict.dict_len, &dict); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize req-buffer to dictionary"); snprintf (err_str, sizeof (err_str), "Unable to decode " "the command"); goto out; } else { dict->extra_stdfree = cli_req.dict.dict_val; } } ret = dict_get_str (dict, "volname", &volname); if (ret) { snprintf (err_str, sizeof (err_str), "Failed to get volume " "name while handling volume set command"); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, "%s", err_str); goto out; } if (strcmp (volname, "help") == 0 || strcmp (volname, "help-xml") == 0) { ret = glusterd_volset_help (dict, &op_errstr); help = _gf_true; goto out; } ret = dict_get_str (dict, "key1", &key); if (ret) { snprintf (err_str, sizeof (err_str), "Failed to get key while" " handling volume set for %s", volname); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, "%s", err_str); goto out; } ret = dict_get_str (dict, "value1", &value); if (ret) { snprintf (err_str, sizeof (err_str), "Failed to get value while" " handling volume set for %s", volname); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, "%s", err_str); goto out; } gf_msg_debug (this->name, 0, "Received volume set request for " "volume %s", volname); ret = glusterd_op_begin_synctask (req, GD_OP_SET_VOLUME, dict); out: if (help) ret = glusterd_op_send_cli_response (cli_op, ret, 0, req, dict, (op_errstr)? op_errstr:""); else if (ret) { if (err_str[0] == '\0') snprintf (err_str, sizeof (err_str), "Operation failed"); ret = glusterd_op_send_cli_response (cli_op, ret, 0, req, dict, err_str); } if (op_errstr) GF_FREE (op_errstr); return ret; } int glusterd_handle_set_volume (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_set_volume); } int __glusterd_handle_sync_volume (rpcsvc_request_t *req) { int32_t ret = -1; gf_cli_req cli_req = {{0,}}; dict_t *dict = NULL; gf_cli_rsp cli_rsp = {0.}; char msg[2048] = {0,}; char *volname = NULL; gf1_cli_sync_volume flags = 0; char *hostname = NULL; xlator_t *this = NULL; GF_ASSERT (req); this = THIS; GF_ASSERT (this); ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf_cli_req); if (ret < 0) { //failed to decode msg; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "%s", "Failed to decode " "request received from cli"); req->rpc_err = GARBAGE_ARGS; goto out; } if (cli_req.dict.dict_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (cli_req.dict.dict_val, cli_req.dict.dict_len, &dict); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize req-buffer to dictionary"); snprintf (msg, sizeof (msg), "Unable to decode the " "command"); goto out; } else { dict->extra_stdfree = cli_req.dict.dict_val; } } ret = dict_get_str (dict, "hostname", &hostname); if (ret) { snprintf (msg, sizeof (msg), "Failed to get hostname"); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_HOSTNAME_NOTFOUND_IN_DICT, "%s", msg); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { ret = dict_get_int32 (dict, "flags", (int32_t*)&flags); if (ret) { snprintf (msg, sizeof (msg), "Failed to get volume name" " or flags"); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_FLAGS_NOTFOUND_IN_DICT, "%s", msg); goto out; } } gf_msg (this->name, GF_LOG_INFO, 0, GD_MSG_VOL_SYNC_REQ_RCVD, "Received volume sync req " "for volume %s", (flags & GF_CLI_SYNC_ALL) ? "all" : volname); if (gf_is_local_addr (hostname)) { ret = -1; snprintf (msg, sizeof (msg), "sync from localhost" " not allowed"); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_SYNC_FROM_LOCALHOST_UNALLOWED, "%s", msg); goto out; } ret = glusterd_op_begin_synctask (req, GD_OP_SYNC_VOLUME, dict); out: if (ret) { cli_rsp.op_ret = -1; cli_rsp.op_errstr = msg; if (msg[0] == '\0') snprintf (msg, sizeof (msg), "Operation failed"); glusterd_to_cli (req, &cli_rsp, NULL, 0, NULL, (xdrproc_t)xdr_gf_cli_rsp, dict); ret = 0; //sent error to cli, prevent second reply } return ret; } int glusterd_handle_sync_volume (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_sync_volume); } int glusterd_fsm_log_send_resp (rpcsvc_request_t *req, int op_ret, char *op_errstr, dict_t *dict) { int ret = -1; gf1_cli_fsm_log_rsp rsp = {0}; GF_ASSERT (req); GF_ASSERT (op_errstr); rsp.op_ret = op_ret; rsp.op_errstr = op_errstr; if (rsp.op_ret == 0) { ret = dict_allocate_and_serialize (dict, &rsp.fsm_log.fsm_log_val, &rsp.fsm_log.fsm_log_len); if (ret < 0) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_SERL_LENGTH_GET_FAIL, "failed to get serialized length of dict"); return ret; } } ret = glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gf1_cli_fsm_log_rsp); GF_FREE (rsp.fsm_log.fsm_log_val); gf_msg_debug ("glusterd", 0, "Responded, ret: %d", ret); return 0; } int __glusterd_handle_fsm_log (rpcsvc_request_t *req) { int32_t ret = -1; gf1_cli_fsm_log_req cli_req = {0,}; dict_t *dict = NULL; xlator_t *this = NULL; glusterd_conf_t *conf = NULL; char msg[2048] = {0}; glusterd_peerinfo_t *peerinfo = NULL; GF_ASSERT (req); this = THIS; GF_VALIDATE_OR_GOTO ("xlator", (this != NULL), out); ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf1_cli_fsm_log_req); if (ret < 0) { //failed to decode msg; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode " "request received from client."); req->rpc_err = GARBAGE_ARGS; snprintf (msg, sizeof (msg), "Garbage request"); goto out; } dict = dict_new (); if (!dict) { ret = -1; goto out; } if (strcmp ("", cli_req.name) == 0) { conf = this->private; ret = glusterd_sm_tr_log_add_to_dict (dict, &conf->op_sm_log); } else { rcu_read_lock (); peerinfo = glusterd_peerinfo_find_by_hostname (cli_req.name); if (!peerinfo) { ret = -1; snprintf (msg, sizeof (msg), "%s is not a peer", cli_req.name); } else { ret = glusterd_sm_tr_log_add_to_dict (dict, &peerinfo->sm_log); } rcu_read_unlock (); } out: (void)glusterd_fsm_log_send_resp (req, ret, msg, dict); free (cli_req.name);//malloced by xdr if (dict) dict_unref (dict); glusterd_friend_sm (); glusterd_op_sm (); return 0;//send 0 to avoid double reply } int glusterd_handle_fsm_log (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_fsm_log); } int glusterd_op_lock_send_resp (rpcsvc_request_t *req, int32_t status) { gd1_mgmt_cluster_lock_rsp rsp = {{0},}; int ret = -1; GF_ASSERT (req); glusterd_get_uuid (&rsp.uuid); rsp.op_ret = status; ret = glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gd1_mgmt_cluster_lock_rsp); gf_msg_debug (THIS->name, 0, "Responded to lock, ret: %d", ret); return 0; } int glusterd_op_unlock_send_resp (rpcsvc_request_t *req, int32_t status) { gd1_mgmt_cluster_unlock_rsp rsp = {{0},}; int ret = -1; GF_ASSERT (req); rsp.op_ret = status; glusterd_get_uuid (&rsp.uuid); ret = glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gd1_mgmt_cluster_unlock_rsp); gf_msg_debug (THIS->name, 0, "Responded to unlock, ret: %d", ret); return ret; } int glusterd_op_mgmt_v3_lock_send_resp (rpcsvc_request_t *req, uuid_t *txn_id, int32_t status) { gd1_mgmt_v3_lock_rsp rsp = {{0},}; int ret = -1; GF_ASSERT (req); GF_ASSERT (txn_id); glusterd_get_uuid (&rsp.uuid); rsp.op_ret = status; if (rsp.op_ret) rsp.op_errno = errno; gf_uuid_copy (rsp.txn_id, *txn_id); ret = glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gd1_mgmt_v3_lock_rsp); gf_msg_debug (THIS->name, 0, "Responded to mgmt_v3 lock, ret: %d", ret); return ret; } int glusterd_op_mgmt_v3_unlock_send_resp (rpcsvc_request_t *req, uuid_t *txn_id, int32_t status) { gd1_mgmt_v3_unlock_rsp rsp = {{0},}; int ret = -1; GF_ASSERT (req); GF_ASSERT (txn_id); rsp.op_ret = status; if (rsp.op_ret) rsp.op_errno = errno; glusterd_get_uuid (&rsp.uuid); gf_uuid_copy (rsp.txn_id, *txn_id); ret = glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gd1_mgmt_v3_unlock_rsp); gf_msg_debug (THIS->name, 0, "Responded to mgmt_v3 unlock, ret: %d", ret); return ret; } int __glusterd_handle_cluster_unlock (rpcsvc_request_t *req) { gd1_mgmt_cluster_unlock_req unlock_req = {{0}, }; int32_t ret = -1; glusterd_op_lock_ctx_t *ctx = 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; ret = xdr_to_generic (req->msg[0], &unlock_req, (xdrproc_t)xdr_gd1_mgmt_cluster_unlock_req); if (ret < 0) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode unlock " "request received from peer"); req->rpc_err = GARBAGE_ARGS; goto out; } gf_msg_debug (this->name, 0, "Received UNLOCK from uuid: %s", uuid_utoa (unlock_req.uuid)); rcu_read_lock (); ret = (glusterd_peerinfo_find_by_uuid (unlock_req.uuid) == NULL); rcu_read_unlock (); if (ret) { gf_msg (this->name, GF_LOG_WARNING, 0, GD_MSG_PEER_NOT_FOUND, "%s doesn't " "belong to the cluster. Ignoring request.", uuid_utoa (unlock_req.uuid)); ret = -1; goto out; } ctx = GF_CALLOC (1, sizeof (*ctx), gf_gld_mt_op_lock_ctx_t); if (!ctx) { //respond here gf_msg (this->name, GF_LOG_ERROR, ENOMEM, GD_MSG_NO_MEMORY, "No memory."); return -1; } gf_uuid_copy (ctx->uuid, unlock_req.uuid); ctx->req = req; ctx->dict = NULL; ret = glusterd_op_sm_inject_event (GD_OP_EVENT_UNLOCK, txn_id, ctx); out: glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_cluster_unlock (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_cluster_unlock); } int glusterd_op_stage_send_resp (rpcsvc_request_t *req, int32_t op, int32_t status, char *op_errstr, dict_t *rsp_dict) { gd1_mgmt_stage_op_rsp rsp = {{0},}; int ret = -1; xlator_t *this = NULL; this = THIS; GF_ASSERT (this); GF_ASSERT (req); rsp.op_ret = status; glusterd_get_uuid (&rsp.uuid); rsp.op = op; if (op_errstr) rsp.op_errstr = op_errstr; else rsp.op_errstr = ""; ret = dict_allocate_and_serialize (rsp_dict, &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 get serialized length of dict"); return ret; } ret = glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gd1_mgmt_stage_op_rsp); gf_msg_debug (this->name, 0, "Responded to stage, ret: %d", ret); GF_FREE (rsp.dict.dict_val); return ret; } int glusterd_op_commit_send_resp (rpcsvc_request_t *req, int32_t op, int32_t status, char *op_errstr, dict_t *rsp_dict) { gd1_mgmt_commit_op_rsp rsp = {{0}, }; int ret = -1; xlator_t *this = NULL; this = THIS; GF_ASSERT (this); GF_ASSERT (req); rsp.op_ret = status; glusterd_get_uuid (&rsp.uuid); rsp.op = op; if (op_errstr) rsp.op_errstr = op_errstr; else rsp.op_errstr = ""; if (rsp_dict) { ret = dict_allocate_and_serialize (rsp_dict, &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 get serialized length of dict"); goto out; } } ret = glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gd1_mgmt_commit_op_rsp); gf_msg_debug (this->name, 0, "Responded to commit, ret: %d", ret); out: GF_FREE (rsp.dict.dict_val); return ret; } int __glusterd_handle_incoming_friend_req (rpcsvc_request_t *req) { int32_t ret = -1; gd1_mgmt_friend_req friend_req = {{0},}; gf_boolean_t run_fsm = _gf_true; GF_ASSERT (req); ret = xdr_to_generic (req->msg[0], &friend_req, (xdrproc_t)xdr_gd1_mgmt_friend_req); if (ret < 0) { //failed to decode msg; gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode " "request received from friend"); req->rpc_err = GARBAGE_ARGS; goto out; } gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_PROBE_RCVD, "Received probe from uuid: %s", uuid_utoa (friend_req.uuid)); ret = glusterd_handle_friend_req (req, friend_req.uuid, friend_req.hostname, friend_req.port, &friend_req); if (ret == GLUSTERD_CONNECTION_AWAITED) { //fsm should be run after connection establishes run_fsm = _gf_false; ret = 0; } out: free (friend_req.hostname);//malloced by xdr if (run_fsm) { glusterd_friend_sm (); glusterd_op_sm (); } return ret; } int glusterd_handle_incoming_friend_req (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_incoming_friend_req); } int __glusterd_handle_incoming_unfriend_req (rpcsvc_request_t *req) { int32_t ret = -1; gd1_mgmt_friend_req friend_req = {{0},}; char remote_hostname[UNIX_PATH_MAX + 1] = {0,}; GF_ASSERT (req); ret = xdr_to_generic (req->msg[0], &friend_req, (xdrproc_t)xdr_gd1_mgmt_friend_req); if (ret < 0) { //failed to decode msg; gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode " "request received."); req->rpc_err = GARBAGE_ARGS; goto out; } gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_UNFRIEND_REQ_RCVD, "Received unfriend from uuid: %s", uuid_utoa (friend_req.uuid)); ret = glusterd_remote_hostname_get (req, remote_hostname, sizeof (remote_hostname)); if (ret) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_HOSTNAME_RESOLVE_FAIL, "Unable to get the remote hostname"); goto out; } ret = glusterd_handle_unfriend_req (req, friend_req.uuid, remote_hostname, friend_req.port); out: free (friend_req.hostname);//malloced by xdr free (friend_req.vols.vols_val);//malloced by xdr glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_incoming_unfriend_req (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_incoming_unfriend_req); } int glusterd_handle_friend_update_delete (dict_t *dict) { char *hostname = NULL; int32_t ret = -1; GF_ASSERT (dict); ret = dict_get_str (dict, "hostname", &hostname); if (ret) goto out; ret = glusterd_friend_remove (NULL, hostname); out: gf_msg_debug ("glusterd", 0, "Returning %d", ret); return ret; } int glusterd_peer_hostname_update (glusterd_peerinfo_t *peerinfo, const char *hostname, gf_boolean_t store_update) { int ret = 0; GF_ASSERT (peerinfo); GF_ASSERT (hostname); ret = gd_add_address_to_peer (peerinfo, hostname); if (ret) { gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_HOSTNAME_ADD_TO_PEERLIST_FAIL, "Couldn't add address to the peer info"); goto out; } if (store_update) ret = glusterd_store_peerinfo (peerinfo); out: gf_msg_debug (THIS->name, 0, "Returning %d", ret); return ret; } int __glusterd_handle_friend_update (rpcsvc_request_t *req) { int32_t ret = -1; gd1_mgmt_friend_update friend_req = {{0},}; glusterd_peerinfo_t *peerinfo = NULL; glusterd_conf_t *priv = NULL; xlator_t *this = NULL; gd1_mgmt_friend_update_rsp rsp = {{0},}; dict_t *dict = NULL; char key[100] = {0,}; char *uuid_buf = NULL; int i = 1; int count = 0; uuid_t uuid = {0,}; glusterd_peerctx_args_t args = {0}; int32_t op = 0; GF_ASSERT (req); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); ret = xdr_to_generic (req->msg[0], &friend_req, (xdrproc_t)xdr_gd1_mgmt_friend_update); if (ret < 0) { //failed to decode msg; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode " "request received"); req->rpc_err = GARBAGE_ARGS; goto out; } ret = 0; rcu_read_lock (); if (glusterd_peerinfo_find (friend_req.uuid, NULL) == NULL) { ret = -1; } rcu_read_unlock (); if (ret) { gf_msg (this->name, GF_LOG_CRITICAL, 0, GD_MSG_REQ_FROM_UNKNOWN_PEER, "Received friend update request " "from unknown peer %s", uuid_utoa (friend_req.uuid)); gf_event (EVENT_UNKNOWN_PEER, "peer=%s", uuid_utoa (friend_req.uuid)); goto out; } gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_FRIEND_UPDATE_RCVD, "Received friend update from uuid: %s", uuid_utoa (friend_req.uuid)); if (friend_req.friends.friends_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (friend_req.friends.friends_val, friend_req.friends.friends_len, &dict); if (ret < 0) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize req-buffer to dictionary"); goto out; } else { dict->extra_stdfree = friend_req.friends.friends_val; } } ret = dict_get_int32 (dict, "count", &count); if (ret) goto out; ret = dict_get_int32 (dict, "op", &op); if (ret) goto out; if (GD_FRIEND_UPDATE_DEL == op) { ret = glusterd_handle_friend_update_delete (dict); goto out; } args.mode = GD_MODE_ON; while ( i <= count) { memset (key, 0, sizeof (key)); snprintf (key, sizeof (key), "friend%d.uuid", i); ret = dict_get_str (dict, key, &uuid_buf); if (ret) goto out; gf_uuid_parse (uuid_buf, uuid); if (!gf_uuid_compare (uuid, MY_UUID)) { gf_msg (this->name, GF_LOG_INFO, 0, GD_MSG_UUID_RECEIVED, "Received my uuid as Friend"); i++; continue; } memset (key, 0, sizeof (key)); snprintf (key, sizeof (key), "friend%d", i); rcu_read_lock (); peerinfo = glusterd_peerinfo_find (uuid, NULL); if (peerinfo == NULL) { /* Create a new peer and add it to the list as there is * no existing peer with the uuid */ peerinfo = gd_peerinfo_from_dict (dict, key); if (peerinfo == NULL) { ret = -1; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_PEERINFO_CREATE_FAIL, "Could not create peerinfo from dict " "for prefix %s", key); goto unlock; } /* As this is a new peer, it should be added as a * friend. The friend state machine will take care of * correcting the state as required */ peerinfo->state.state = GD_FRIEND_STATE_BEFRIENDED; ret = glusterd_friend_add_from_peerinfo (peerinfo, 0, &args); } else { /* As an existing peer was found, update it with the new * information */ ret = gd_update_peerinfo_from_dict (peerinfo, dict, key); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_PEER_INFO_UPDATE_FAIL, "Failed to " "update peer %s", peerinfo->hostname); goto unlock; } ret = glusterd_store_peerinfo (peerinfo); if (ret) { gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_PEERINFO_CREATE_FAIL, "Failed to store peerinfo"); gf_event (EVENT_PEER_STORE_FAILURE, "peer=%s", peerinfo->hostname); } } unlock: rcu_read_unlock (); if (ret) break; peerinfo = NULL; i++; } out: gf_uuid_copy (rsp.uuid, MY_UUID); ret = glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gd1_mgmt_friend_update_rsp); if (dict) { if (!dict->extra_stdfree && friend_req.friends.friends_val) free (friend_req.friends.friends_val);//malloced by xdr dict_unref (dict); } else { free (friend_req.friends.friends_val);//malloced by xdr } if (peerinfo) glusterd_peerinfo_cleanup (peerinfo); glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_friend_update (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_friend_update); } int __glusterd_handle_probe_query (rpcsvc_request_t *req) { int32_t ret = -1; xlator_t *this = NULL; glusterd_conf_t *conf = NULL; gd1_mgmt_probe_req probe_req = {{0},}; gd1_mgmt_probe_rsp rsp = {{0},}; glusterd_peerinfo_t *peerinfo = NULL; glusterd_peerctx_args_t args = {0}; int port = 0; char remote_hostname[UNIX_PATH_MAX + 1] = {0,}; GF_ASSERT (req); this = THIS; GF_VALIDATE_OR_GOTO ("xlator", (this != NULL), out); ret = xdr_to_generic (req->msg[0], &probe_req, (xdrproc_t)xdr_gd1_mgmt_probe_req); if (ret < 0) { //failed to decode msg; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode probe " "request"); req->rpc_err = GARBAGE_ARGS; goto out; } conf = this->private; if (probe_req.port) port = probe_req.port; else port = GF_DEFAULT_BASE_PORT; gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_PROBE_RCVD, "Received probe from uuid: %s", uuid_utoa (probe_req.uuid)); /* Check for uuid collision and handle it in a user friendly way by * sending the error. */ if (!gf_uuid_compare (probe_req.uuid, MY_UUID)) { gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_UUIDS_SAME_RETRY, "Peer uuid %s is same as " "local uuid. Please check the uuid of both the peers " "from %s/%s", uuid_utoa (probe_req.uuid), GLUSTERD_DEFAULT_WORKDIR, GLUSTERD_INFO_FILE); rsp.op_ret = -1; rsp.op_errno = GF_PROBE_SAME_UUID; rsp.port = port; goto respond; } ret = glusterd_remote_hostname_get (req, remote_hostname, sizeof (remote_hostname)); if (ret) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_HOSTNAME_RESOLVE_FAIL, "Unable to get the remote hostname"); goto out; } rcu_read_lock (); peerinfo = glusterd_peerinfo_find (probe_req.uuid, remote_hostname); if ((peerinfo == NULL) && (!cds_list_empty (&conf->peers))) { rsp.op_ret = -1; rsp.op_errno = GF_PROBE_ANOTHER_CLUSTER; } else if (peerinfo == NULL) { gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_PEER_NOT_FOUND, "Unable to find peerinfo" " for host: %s (%d)", remote_hostname, port); args.mode = GD_MODE_ON; ret = glusterd_friend_add (remote_hostname, port, GD_FRIEND_STATE_PROBE_RCVD, NULL, &peerinfo, 0, &args); if (ret) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_PEER_ADD_FAIL, "Failed to add peer %s", remote_hostname); rsp.op_errno = GF_PROBE_ADD_FAILED; } } rcu_read_unlock (); respond: gf_uuid_copy (rsp.uuid, MY_UUID); rsp.hostname = probe_req.hostname; rsp.op_errstr = ""; glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gd1_mgmt_probe_rsp); ret = 0; gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_RESPONSE_INFO, "Responded to %s, op_ret: %d, " "op_errno: %d, ret: %d", remote_hostname, rsp.op_ret, rsp.op_errno, ret); out: free (probe_req.hostname);//malloced by xdr glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_probe_query (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_probe_query); } int __glusterd_handle_cli_profile_volume (rpcsvc_request_t *req) { int32_t ret = -1; gf_cli_req cli_req = {{0,}}; dict_t *dict = NULL; glusterd_op_t cli_op = GD_OP_PROFILE_VOLUME; char *volname = NULL; int32_t op = 0; char err_str[2048] = {0,}; xlator_t *this = NULL; GF_ASSERT (req); this = THIS; GF_ASSERT (this); ret = xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf_cli_req); if (ret < 0) { //failed to decode msg; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode " "request received from cli"); req->rpc_err = GARBAGE_ARGS; goto out; } if (cli_req.dict.dict_len > 0) { dict = dict_new(); if (!dict) goto out; dict_unserialize (cli_req.dict.dict_val, cli_req.dict.dict_len, &dict); } ret = dict_get_str (dict, "volname", &volname); if (ret) { snprintf (err_str, sizeof (err_str), "Unable to get volume " "name"); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_VOLNAME_NOTFOUND_IN_DICT, "%s", err_str); goto out; } gf_msg (this->name, GF_LOG_INFO, 0, GD_MSG_VOL_PROFILE_REQ_RCVD, "Received volume profile req " "for volume %s", volname); ret = dict_get_int32 (dict, "op", &op); if (ret) { snprintf (err_str, sizeof (err_str), "Unable to get operation"); gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, "%s", err_str); goto out; } ret = glusterd_op_begin (req, cli_op, dict, err_str, sizeof (err_str)); out: glusterd_friend_sm (); glusterd_op_sm (); free (cli_req.dict.dict_val); if (ret) { if (err_str[0] == '\0') snprintf (err_str, sizeof (err_str), "Operation failed"); ret = glusterd_op_send_cli_response (cli_op, ret, 0, req, dict, err_str); } gf_msg_debug (this->name, 0, "Returning %d", ret); return ret; } int glusterd_handle_cli_profile_volume (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_cli_profile_volume); } int __glusterd_handle_getwd (rpcsvc_request_t *req) { int32_t ret = -1; gf1_cli_getwd_rsp rsp = {0,}; glusterd_conf_t *priv = NULL; GF_ASSERT (req); priv = THIS->private; GF_ASSERT (priv); gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_GETWD_REQ_RCVD, "Received getwd req"); rsp.wd = priv->workdir; glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gf1_cli_getwd_rsp); ret = 0; glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_getwd (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_getwd); } int __glusterd_handle_mount (rpcsvc_request_t *req) { gf1_cli_mount_req mnt_req = {0,}; gf1_cli_mount_rsp rsp = {0,}; dict_t *dict = NULL; int ret = 0; glusterd_conf_t *priv = NULL; GF_ASSERT (req); priv = THIS->private; ret = xdr_to_generic (req->msg[0], &mnt_req, (xdrproc_t)xdr_gf1_cli_mount_req); if (ret < 0) { //failed to decode msg; gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode mount " "request received"); req->rpc_err = GARBAGE_ARGS; rsp.op_ret = -1; rsp.op_errno = EINVAL; goto out; } gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_MOUNT_REQ_RCVD, "Received mount req"); if (mnt_req.dict.dict_len) { /* Unserialize the dictionary */ dict = dict_new (); ret = dict_unserialize (mnt_req.dict.dict_val, mnt_req.dict.dict_len, &dict); if (ret < 0) { gf_msg ("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_UNSERIALIZE_FAIL, "failed to " "unserialize req-buffer to dictionary"); rsp.op_ret = -1; rsp.op_errno = -EINVAL; goto out; } else { dict->extra_stdfree = mnt_req.dict.dict_val; } } synclock_unlock (&priv->big_lock); rsp.op_ret = glusterd_do_mount (mnt_req.label, dict, &rsp.path, &rsp.op_errno); synclock_lock (&priv->big_lock); out: if (!rsp.path) rsp.path = gf_strdup(""); glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gf1_cli_mount_rsp); ret = 0; if (dict) dict_unref (dict); GF_FREE (rsp.path); glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_mount (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_mount); } int __glusterd_handle_umount (rpcsvc_request_t *req) { gf1_cli_umount_req umnt_req = {0,}; gf1_cli_umount_rsp rsp = {0,}; char *mountbroker_root = NULL; char mntp[PATH_MAX] = {0,}; char *path = NULL; runner_t runner = {0,}; int ret = 0; xlator_t *this = THIS; gf_boolean_t dir_ok = _gf_false; char *pdir = NULL; char *t = NULL; glusterd_conf_t *priv = NULL; GF_ASSERT (req); GF_ASSERT (this); priv = this->private; ret = xdr_to_generic (req->msg[0], &umnt_req, (xdrproc_t)xdr_gf1_cli_umount_req); if (ret < 0) { //failed to decode msg; gf_msg (this->name, GF_LOG_ERROR, 0, GD_MSG_REQ_DECODE_FAIL, "Failed to decode umount" "request"); req->rpc_err = GARBAGE_ARGS; rsp.op_ret = -1; goto out; } gf_msg ("glusterd", GF_LOG_INFO, 0, GD_MSG_UMOUNT_REQ_RCVD, "Received umount req"); if (dict_get_str (this->options, "mountbroker-root", &mountbroker_root) != 0) { rsp.op_errno = ENOENT; goto out; } /* check if it is allowed to umount path */ path = gf_strdup (umnt_req.path); if (!path) { rsp.op_errno = ENOMEM; goto out; } dir_ok = _gf_false; pdir = dirname (path); t = strtail (pdir, mountbroker_root); if (t && *t == '/') { t = strtail(++t, MB_HIVE); if (t && !*t) dir_ok = _gf_true; } GF_FREE (path); if (!dir_ok) { rsp.op_errno = EACCES; goto out; } synclock_unlock (&priv->big_lock); if (umnt_req.lazy) { rsp.op_ret = gf_umount_lazy (this->name, umnt_req.path, 0); } else { runinit (&runner); runner_add_args (&runner, _PATH_UMOUNT, umnt_req.path, NULL); rsp.op_ret = runner_run (&runner); } synclock_lock (&priv->big_lock); if (rsp.op_ret == 0) { if (realpath (umnt_req.path, mntp)) sys_rmdir (mntp); else { rsp.op_ret = -1; rsp.op_errno = errno; } if (sys_unlink (umnt_req.path) != 0) { rsp.op_ret = -1; rsp.op_errno = errno; } } out: if (rsp.op_errno) rsp.op_ret = -1; glusterd_submit_reply (req, &rsp, NULL, 0, NULL, (xdrproc_t)xdr_gf1_cli_umount_rsp); ret = 0; glusterd_friend_sm (); glusterd_op_sm (); return ret; } int glusterd_handle_umount (rpcsvc_request_t *req) { return glusterd_big_locked_handler (req, __glusterd_handle_umount); } int glusterd_friend_remove (uuid_t uuid, char *hostname) { int ret = -1; glusterd_peerinfo_t *peerinfo = NULL; rcu_read_lock (); peerinfo = glusterd_peerinfo_find (uuid, hostname); if (peerinfo == NULL) { rcu_read_unlock (); goto out; } ret = glusterd_friend_remove_cleanup_vols (peerinfo->uuid); if (ret) gf_msg (THIS->name, GF_LOG_WARNING, 0, GD_MSG_VOL_CLEANUP_FAIL, "Volumes cleanup failed"); rcu_read_unlock ();


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