diff --git a/fencing/admin.c b/fencing/admin.c index b76400eed4..355465d363 100644 --- a/fencing/admin.c +++ b/fencing/admin.c @@ -1,505 +1,505 @@ /* * Copyright (C) 2009 Andrew Beekhof * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* *INDENT-OFF* */ static struct crm_option long_options[] = { {"help", 0, 0, '?', "\tThis text"}, {"version", 0, 0, '$', "\tVersion information" }, {"verbose", 0, 0, 'V', "\tIncrease debug output"}, {"quiet", 0, 0, 'q', "\tPrint only essential output"}, {"-spacer-", 0, 0, '-', "Commands:"}, {"list", 1, 0, 'l', "List devices that can terminate the specified host"}, {"list-registered", 0, 0, 'L', "List all registered devices"}, {"list-installed", 0, 0, 'I', "List all installed devices"}, {"-spacer-", 0, 0, '-', ""}, {"metadata", 0, 0, 'M', "Check the device's metadata"}, {"query", 1, 0, 'Q', "Check the device's status"}, {"fence", 1, 0, 'F', "Fence the named host"}, {"unfence", 1, 0, 'U', "Unfence the named host"}, {"reboot", 1, 0, 'B', "Reboot the named host"}, {"confirm", 1, 0, 'C', "Confirm the named host is now safely down"}, {"history", 1, 0, 'H', "Retrieve last fencing operation"}, {"-spacer-", 0, 0, '-', ""}, {"register", 1, 0, 'R', "Register the named stonith device. Requires: --agent, optional: --option"}, {"deregister", 1, 0, 'D', "De-register the named stonith device"}, {"register-level", 1, 0, 'r', "Register a stonith level for the named host. Requires: --index, one or more --device entries"}, {"deregister-level", 1, 0, 'd', "De-register a stonith level for the named host. Requires: --index"}, {"-spacer-", 0, 0, '-', ""}, {"-spacer-", 0, 0, '-', "Options and modifiers:"}, {"agent", 1, 0, 'a', "The agent (eg. fence_xvm) to instantiate when calling with --register"}, {"env-option", 1, 0, 'e'}, {"option", 1, 0, 'o'}, {"device", 1, 0, 'v', "A device to associate with a given host and stonith level"}, {"index", 1, 0, 'i', "The stonith level (1-9)"}, {"timeout", 1, 0, 't', "Operation timeout in seconds"}, {"list-all", 0, 0, 'L', "legacy alias for --list-registered"}, {0, 0, 0, 0} }; /* *INDENT-ON* */ int st_opts = st_opt_sync_call|st_opt_allow_suicide; GMainLoop *mainloop = NULL; struct { stonith_t *st; const char *target; const char *action; int timeout; int rc; } async_fence_data; static int try_mainloop_connect(void) { stonith_t *st = async_fence_data.st; int tries = 10; int i = 0; int rc = 0; for (i = 0; i < tries; i++) { rc = st->cmds->connect(st, crm_system_name, NULL); if (!rc) { crm_debug("stonith client connection established"); return 0; } else { crm_debug("stonith client connection failed"); } sleep(1); } crm_err("Couldn not connect to stonithd. \n"); return -1; } static void notify_callback(stonith_t *st, stonith_event_t *e) { if (e->result != pcmk_ok) { return; } if (safe_str_eq(async_fence_data.target, e->target) && - safe_str_eq(async_fence_data.action, e->operation)) { + safe_str_eq(async_fence_data.action, e->action)) { async_fence_data.rc = e->result; g_main_loop_quit(mainloop); } } static void fence_callback(stonith_t * stonith, stonith_callback_data_t *data) { async_fence_data.rc = data->rc; g_main_loop_quit(mainloop); } static gboolean async_fence_helper(gpointer user_data) { stonith_t *st = async_fence_data.st; int call_id = 0; if (try_mainloop_connect()) { g_main_loop_quit(mainloop); return TRUE; } st->cmds->register_notification(st, T_STONITH_NOTIFY_FENCE, notify_callback); call_id = st->cmds->fence(st, st_opt_allow_suicide, async_fence_data.target, async_fence_data.action, async_fence_data.timeout); if (call_id < 0) { g_main_loop_quit(mainloop); return TRUE; } st->cmds->register_callback( st, call_id, async_fence_data.timeout, st_opt_timeout_updates, NULL, "callback", fence_callback); return TRUE; } static int mainloop_fencing(stonith_t *st, const char *target, const char *action, int timeout) { crm_trigger_t *trig; async_fence_data.st = st; async_fence_data.target = target; async_fence_data.action = action; async_fence_data.timeout = timeout; async_fence_data.rc = -1; trig = mainloop_add_trigger(G_PRIORITY_HIGH, async_fence_helper, NULL); mainloop_set_trigger(trig); mainloop = g_main_new(FALSE); g_main_run(mainloop); return async_fence_data.rc; } int main(int argc, char ** argv) { int flag; int rc = 0; int quiet = 0; int verbose = 0; int argerr = 0; int timeout = 120; int option_index = 0; int fence_level = 0; int no_connect = 0; char name[512]; char value[512]; const char *agent = NULL; const char *device = NULL; const char *target = NULL; char action = 0; stonith_t *st = NULL; stonith_key_value_t *params = NULL; stonith_key_value_t *devices = NULL; stonith_key_value_t *dIter = NULL; crm_log_cli_init("stonith_admin"); crm_set_options(NULL, "mode [options]", long_options, "Provides access to the stonith-ng API.\n" "\nAllows the administrator to add/remove/list devices, check device and host status and fence hosts\n"); while (1) { flag = crm_get_option(argc, argv, &option_index); if (flag == -1) break; switch(flag) { case 'V': verbose = 1; crm_bump_log_level(argc, argv); break; case '$': case '?': crm_help(flag, EX_OK); break; case 'I': no_connect = 1; /* fall through */ case 'L': action = flag; break; case 'q': quiet = 1; break; case 'Q': case 'R': case 'D': action = flag; device = optarg; break; case 'a': agent = optarg; break; case 'l': target = optarg; action = 'L'; break; case 'M': no_connect = 1; action = flag; break; case 't': timeout = crm_atoi(optarg, NULL); break; case 'B': case 'F': case 'U': /* using mainloop here */ no_connect = 1; /* fall through */ case 'C': /* Always log the input arguments */ crm_log_args(argc, argv); target = optarg; action = flag; break; case 'H': case 'r': case 'd': target = optarg; action = flag; break; case 'i': fence_level = crm_atoi(optarg, NULL); break; case 'v': devices = stonith_key_value_add(devices, NULL, optarg); break; case 'o': crm_info("Scanning: -o %s", optarg); rc = sscanf(optarg, "%[^=]=%[^=]", name, value); if(rc != 2) { crm_err("Invalid option: -o %s", optarg); ++argerr; } else { crm_info("Got: '%s'='%s'", name, value); params = stonith_key_value_add(params, name, value); } break; case 'e': { char *key = crm_concat("OCF_RESKEY", optarg, '_'); const char *env = getenv(key); if(env == NULL) { crm_err("Invalid option: -e %s", optarg); ++argerr; } else { crm_info("Got: '%s'='%s'", optarg, env); params = stonith_key_value_add( params, optarg, env); } } break; default: ++argerr; break; } } if (optind > argc) { ++argerr; } if (argerr) { crm_help('?', EX_USAGE); } crm_debug("Create"); st = stonith_api_new(); if(!no_connect) { rc = st->cmds->connect(st, crm_system_name, NULL); crm_debug("Connect: %d", rc); if(rc < 0) { goto done; } } switch(action) { case 'I': rc = st->cmds->list_agents(st, st_opt_sync_call, NULL, &devices, timeout); for(dIter = devices; dIter; dIter = dIter->next ) { fprintf( stdout, " %s\n", dIter->value ); } if(rc == 0) { fprintf(stderr, "No devices found\n"); } else if(rc > 0) { fprintf(stderr, "%d devices found\n", rc); rc = 0; } stonith_key_value_freeall(devices, 1, 1); break; case 'L': rc = st->cmds->query(st, st_opts, target, &devices, timeout); for(dIter = devices; dIter; dIter = dIter->next ) { fprintf( stdout, " %s\n", dIter->value ); } if(rc == 0) { fprintf(stderr, "No devices found\n"); } else if(rc > 0) { fprintf(stderr, "%d devices found\n", rc); rc = 0; } stonith_key_value_freeall(devices, 1, 1); break; case 'Q': rc = st->cmds->monitor(st, st_opts, device, timeout); if(rc < 0) { rc = st->cmds->list(st, st_opts, device, NULL, timeout); } break; case 'R': rc = st->cmds->register_device(st, st_opts, device, "stonith-ng", agent, params); break; case 'D': rc = st->cmds->remove_device(st, st_opts, device); break; case 'r': rc = st->cmds->register_level(st, st_opts, target, fence_level, devices); break; case 'd': rc = st->cmds->remove_level(st, st_opts, target, fence_level); break; case 'M': if (agent == NULL) { printf("Please specify an agent to query using -a,--agent [value]\n"); return -1; } else { char *buffer = NULL; rc = st->cmds->metadata(st, st_opt_sync_call, agent, NULL, &buffer, timeout); if(rc == pcmk_ok) { printf("%s\n", buffer); } free(buffer); } break; case 'C': rc = st->cmds->confirm(st, st_opts, target); break; case 'B': rc = mainloop_fencing(st, target, "reboot", timeout); break; case 'F': rc = mainloop_fencing(st, target, "off", timeout); break; case 'U': rc = mainloop_fencing(st, target, "on", timeout); break; case 'H': { stonith_history_t *history, *hp, *latest = NULL; rc = st->cmds->history(st, st_opts, target, &history, timeout); for(hp = history; hp; hp = hp->next) { char *action_s = NULL; time_t complete = hp->completed; if(hp->state == st_done) { latest = hp; } if(quiet || !verbose) { continue; } else if(hp->action == NULL) { action_s = strdup("unknown"); } else if(hp->action[0] != 'r') { action_s = crm_concat("turn", hp->action, ' '); } else { action_s = strdup(hp->action); } if(hp->state == st_failed) { printf("%s failed to %s node %s on behalf of %s at %s\n", hp->delegate?hp->delegate:"We", action_s, hp->target, hp->origin, ctime(&complete)); } else if(hp->state == st_done && hp->delegate) { printf("%s was able to %s node %s on behalf of %s at %s\n", hp->delegate, action_s, hp->target, hp->origin, ctime(&complete)); } else if(hp->state == st_done) { printf("We were able to %s node %s on behalf of %s at %s\n", action_s, hp->target, hp->origin, ctime(&complete)); } else { printf("%s wishes to %s node %s - %d %d\n", hp->origin, action_s, hp->target, hp->state, hp->completed); } free(action_s); } if(latest) { if(quiet) { printf("%d\n", latest->completed); } else { char *action_s = NULL; time_t complete = latest->completed; if(latest->action == NULL) { action_s = strdup("unknown"); } else if(latest->action[0] != 'r') { action_s = crm_concat("turn", latest->action, ' '); } else { action_s = strdup(latest->action); } printf("%s was able to %s node %s on behalf of %s at %s\n", latest->delegate?latest->delegate:"We", action_s, latest->target, latest->origin, ctime(&complete)); free(action_s); } } break; } /* closing bracket for -H case */ } /* closing bracket for switch case */ done: crm_info("Command returned: %s (%d)", pcmk_strerror(rc), rc); if(rc < 0) { printf("Command failed: %s\n", pcmk_strerror(rc)); } stonith_key_value_freeall(params, 1, 1); st->cmds->disconnect(st); crm_debug("Disconnect: %d", rc); crm_debug("Destroy"); stonith_api_delete(st); return rc; } diff --git a/fencing/remote.c b/fencing/remote.c index cc273a4c17..4a14dbc74d 100644 --- a/fencing/remote.c +++ b/fencing/remote.c @@ -1,795 +1,795 @@ /* * Copyright (C) 2009 Andrew Beekhof * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include typedef struct st_query_result_s { char *host; int devices; GListPtr device_list; GHashTable *custom_action_timeouts; } st_query_result_t; GHashTable *remote_op_list = NULL; void call_remote_stonith(remote_fencing_op_t *op, st_query_result_t *peer); extern xmlNode *stonith_create_op( int call_id, const char *token, const char *op, xmlNode *data, int call_options); static void free_remote_query(gpointer data) { if(data) { st_query_result_t *query = data; crm_trace("Free'ing query result from %s", query->host); free(query->host); g_hash_table_destroy(query->custom_action_timeouts); free(query); } } static void free_remote_op(gpointer data) { remote_fencing_op_t *op = data; crm_trace("Free'ing op %s for %s", op->id, op->target); crm_log_xml_debug(op->request, "Destroying"); free(op->id); free(op->action); free(op->target); free(op->client_id); free(op->client_name); free(op->originator); if(op->query_timer) { g_source_remove(op->query_timer); } if(op->op_timer) { g_source_remove(op->op_timer); } if(op->query_results) { g_list_free_full(op->query_results, free_remote_query); } if(op->request) { free_xml(op->request); op->request = NULL; } free(op); } static void remote_op_done(remote_fencing_op_t *op, xmlNode *data, int rc) { xmlNode *reply = NULL; xmlNode *local_data = NULL; xmlNode *notify_data = NULL; op->completed = time(NULL); if(op->query_timer) { g_source_remove(op->query_timer); op->query_timer = 0; } if(op->op_timer) { g_source_remove(op->op_timer); op->op_timer = 0; } if(data == NULL) { data = create_xml_node(NULL, "remote-op"); local_data = data; } else { op->delegate = crm_element_value_copy(data, F_ORIG); } crm_xml_add_int(data, "state", op->state); crm_xml_add(data, F_STONITH_TARGET, op->target); crm_xml_add(data, F_STONITH_OPERATION, op->action); if(op->request != NULL) { reply = stonith_construct_reply(op->request, NULL, data, rc); crm_xml_add(reply, F_STONITH_DELEGATE, op->delegate); do_crm_log(rc==pcmk_ok?LOG_NOTICE:LOG_ERR, "Operation %s of %s by %s for %s[%s]: %s", op->action, op->target, op->delegate?op->delegate:"", op->originator, op->client_id, pcmk_strerror(rc)); } else { crm_err("Already sent notifications for '%s of %s by %s' (op=%s, for=%s, state=%d): %s", op->action, op->target, op->delegate, op->id, op->client_id, op->state, pcmk_strerror(rc)); return; } if(reply) { do_local_reply(reply, op->client_id, op->call_options & st_opt_sync_call, FALSE); } /* Do notification with a clean data object */ notify_data = create_xml_node(NULL, T_STONITH_NOTIFY_FENCE); crm_xml_add_int(notify_data, "state", op->state); crm_xml_add_int(notify_data, F_STONITH_RC, rc); crm_xml_add(notify_data, F_STONITH_TARGET, op->target); - crm_xml_add(notify_data, F_STONITH_OPERATION, op->action); + crm_xml_add(notify_data, F_STONITH_ACTION, op->action); crm_xml_add(notify_data, F_STONITH_DELEGATE, op->delegate); crm_xml_add(notify_data, F_STONITH_REMOTE, op->id); crm_xml_add(notify_data, F_STONITH_ORIGIN, op->originator); crm_xml_add(notify_data, F_STONITH_CLIENTID, op->client_id); crm_xml_add(notify_data, F_STONITH_CLIENTNAME, op->client_name); do_stonith_notify(0, T_STONITH_NOTIFY_FENCE, rc, notify_data, NULL); free_xml(notify_data); free_xml(local_data); free_xml(reply); /* Free non-essential parts of the record * Keep the record around so we can query the history */ if(op->query_results) { g_list_free_full(op->query_results, free_remote_query); op->query_results = NULL; } if(op->request) { free_xml(op->request); op->request = NULL; } } static gboolean remote_op_timeout(gpointer userdata) { remote_fencing_op_t *op = userdata; op->query_timer = 0; if(op->state == st_done) { crm_debug("Action %s (%s) for %s already completed", op->action, op->id, op->target); return FALSE; } crm_debug("Action %s (%s) for %s timed out", op->action, op->id, op->target); remote_op_done(op, NULL, -ETIME); op->state = st_failed; return FALSE; } static gboolean remote_op_query_timeout(gpointer data) { remote_fencing_op_t *op = data; op->query_timer = 0; if(op->state == st_done) { crm_debug("Operation %s for %s already completed", op->id, op->target); } else if(op->state == st_exec) { crm_debug("Operation %s for %s already in progress", op->id, op->target); } else if(op->query_results) { crm_debug("Query %s for %s complete: %d", op->id, op->target, op->state); call_remote_stonith(op, NULL); } else { if(op->op_timer) { g_source_remove(op->op_timer); op->op_timer = 0; } remote_op_timeout(op); } return FALSE; } static int stonith_topology_next(remote_fencing_op_t *op) { stonith_topology_t *tp = NULL; if(op->target) { /* Queries don't have a target set */ tp = g_hash_table_lookup(topology, op->target); } if(tp == NULL) { return pcmk_ok; } set_bit(op->call_options, st_opt_topology); do { op->level++; } while(op->level < ST_LEVEL_MAX && tp->levels[op->level] == NULL); if(op->level < ST_LEVEL_MAX) { crm_trace("Attempting fencing level %d for %s (%d devices)", op->level, op->target, g_list_length(tp->levels[op->level])); op->devices = tp->levels[op->level]; return pcmk_ok; } crm_notice("All fencing options for %s failed", op->target); return -EINVAL; } void *create_remote_stonith_op(const char *client, xmlNode *request, gboolean peer) { remote_fencing_op_t *op = NULL; xmlNode *dev = get_xpath_object("//@"F_STONITH_TARGET, request, LOG_TRACE); if(remote_op_list == NULL) { remote_op_list = g_hash_table_new_full( crm_str_hash, g_str_equal, NULL, free_remote_op); } if(peer && dev) { const char *peer_id = crm_element_value(dev, F_STONITH_REMOTE); CRM_CHECK(peer_id != NULL, return NULL); op = g_hash_table_lookup(remote_op_list, peer_id); if(op) { crm_debug("%s already exists", peer_id); return op; } } op = calloc(1, sizeof(remote_fencing_op_t)); crm_element_value_int(request, F_STONITH_TIMEOUT, (int*)&(op->base_timeout)); if(peer && dev) { op->id = crm_element_value_copy(dev, F_STONITH_REMOTE); crm_trace("Recorded new stonith op: %s", op->id); } else { op->id = crm_generate_uuid(); crm_trace("Generated new stonith op: %s", op->id); } g_hash_table_replace(remote_op_list, op->id, op); CRM_LOG_ASSERT(g_hash_table_lookup(remote_op_list, op->id) != NULL); op->state = st_query; op->action = crm_element_value_copy(dev, F_STONITH_ACTION); op->originator = crm_element_value_copy(dev, F_STONITH_ORIGIN); if(op->originator == NULL) { /* Local request */ op->originator = strdup(stonith_our_uname); } if(client) { op->client_id = strdup(client); } op->client_name = crm_element_value_copy(request, F_STONITH_CLIENTNAME); op->target = crm_element_value_copy(dev, F_STONITH_TARGET); op->request = copy_xml(request); /* TODO: Figure out how to avoid this */ crm_element_value_int(request, F_STONITH_CALLOPTS, (int*)&(op->call_options)); if(op->call_options & st_opt_cs_nodeid) { int nodeid = crm_atoi(op->target, NULL); crm_node_t *node = crm_get_peer(nodeid, NULL); /* Ensure the conversion only happens once */ op->call_options &= ~st_opt_cs_nodeid; if(node && node->uname) { free(op->target); op->target = strdup(node->uname); } else { crm_warn("Could not expand nodeid '%s' into a host name (%p)", op->target, node); } } if(stonith_topology_next(op) != pcmk_ok) { op->state = st_failed; } return op; } remote_fencing_op_t *initiate_remote_stonith_op(stonith_client_t *client, xmlNode *request, gboolean manual_ack) { xmlNode *query = NULL; const char *client_id = NULL; remote_fencing_op_t *op = NULL; if(client) { client_id = client->id; } else { client_id = crm_element_value(request, F_STONITH_CLIENTID); } CRM_LOG_ASSERT(client_id != NULL); op = create_remote_stonith_op(client_id, request, FALSE); query = stonith_create_op(0, op->id, STONITH_OP_QUERY, NULL, 0); if(!manual_ack) { op->query_timer = g_timeout_add(100*op->base_timeout, remote_op_query_timeout, op); } else { crm_xml_add(query, F_STONITH_DEVICE, "manual_ack"); } crm_xml_add(query, F_STONITH_REMOTE, op->id); crm_xml_add(query, F_STONITH_TARGET, op->target); crm_xml_add(query, F_STONITH_ACTION, op->action); crm_xml_add(query, F_STONITH_ORIGIN, op->originator); crm_xml_add(query, F_STONITH_CLIENTID, op->client_id); crm_xml_add(query, F_STONITH_CLIENTNAME, op->client_name); crm_xml_add_int(query, F_STONITH_TIMEOUT, op->base_timeout); crm_info("Initiating remote operation %s for %s: %s", op->action, op->target, op->id); CRM_CHECK(op->action, return NULL); send_cluster_message(NULL, crm_msg_stonith_ng, query, FALSE); free_xml(query); return op; } static gint sort_strings(gconstpointer a, gconstpointer b) { return strcmp(a, b); } static st_query_result_t *stonith_choose_peer(remote_fencing_op_t *op) { GListPtr iter = NULL; do { if(op->devices) { crm_trace("Checking for someone to fence %s with %s", op->target, (char*)op->devices->data); } else { crm_trace("Checking for someone to fence %s", op->target); } for(iter = op->query_results; iter != NULL; iter = iter->next) { st_query_result_t *peer = iter->data; if(is_set(op->call_options, st_opt_topology)) { /* Do they have the next device of the current fencing level? */ GListPtr match = NULL; if(op->devices) { match = g_list_find_custom(peer->device_list, op->devices->data, sort_strings); } if(match) { crm_trace("Removing %s from %s (%d remaining)", (char*)match->data, peer->host, g_list_length(peer->device_list)); peer->device_list = g_list_remove(peer->device_list, match->data); return peer; } } else if(peer && peer->devices > 0) { /* No topology: Use the current best peer */ crm_trace("Simple fencing"); return peer; } } /* Try the next fencing level if there is one */ } while(is_set(op->call_options, st_opt_topology) && stonith_topology_next(op) == pcmk_ok); if(op->devices) { crm_trace("Couldn't find anyone to fence %s with %s", op->target, (char*)op->devices->data); } else { crm_trace("Couldn't find anyone to fence %s", op->target); } return NULL; } static int get_device_timeout(st_query_result_t *peer, const char *device, int default_timeout) { gpointer res; if (!peer || !device) { return default_timeout; } res = g_hash_table_lookup(peer->custom_action_timeouts, device); return res ? GPOINTER_TO_INT(res) : default_timeout; } static int get_op_total_timeout(remote_fencing_op_t *op, st_query_result_t *chosen_peer, int default_timeout) { stonith_topology_t *tp = g_hash_table_lookup(topology, op->target); int total_timeout = 0; if (is_set(op->call_options, st_opt_topology) && tp) { int i; GListPtr device_list = NULL; GListPtr iter = NULL; /* Yep, this looks scary, nested loops all over the place. * Here is what is going on. * Loop1: Iterate through fencing levels. * Loop2: If a fencing level has devices, loop through each device * Loop3: For each device in a fencing level, see what peer owns it * and what that peer has reported the timeout is for the device. */ for (i = 0; i < ST_LEVEL_MAX; i++) { if (!tp->levels[i]) { continue; } for (device_list = tp->levels[i]; device_list; device_list = device_list->next) { for(iter = op->query_results; iter != NULL; iter = iter->next) { st_query_result_t *peer = iter->data; if (g_list_find_custom(peer->device_list, device_list->data, sort_strings)) { total_timeout += get_device_timeout(chosen_peer, device_list->data, default_timeout); break; } } /* End Loop3: match device with peer that owns device, find device's timeout period */ } /* End Loop2: iterate through devices at a specific level */ } /*End Loop1: iterate through fencing levels */ } else if (chosen_peer) { GListPtr cur = NULL; for (cur = chosen_peer->device_list; cur; cur = cur->next) { total_timeout += get_device_timeout(chosen_peer, cur->data, default_timeout); } } else { total_timeout = default_timeout; } return total_timeout ? total_timeout : default_timeout; } static void report_timeout_period(remote_fencing_op_t *op, int op_timeout) { xmlNode *update = NULL; const char *client_node = NULL; const char *client_id = NULL; const char *call_id = NULL; if (op->call_options & st_opt_sync_call) { /* There is no reason to report the timeout for a syncronous call. It * is impossible to use the reported timeout to do anything when the client * is blocking for the response. This update is only important for * async calls that require a callback to report the results in. */ return; } else if (!op->request) { return; } client_node = crm_element_value(op->request, F_STONITH_CLIENTNODE); call_id = crm_element_value(op->request, F_STONITH_CALLID); client_id = crm_element_value(op->request, F_STONITH_CLIENTID); if (!client_node || !call_id || !client_id) { return; } if (safe_str_eq(client_node, stonith_our_uname)) { /* The client is connected to this node, send the update direclty to them */ do_stonith_async_timeout_update(client_id, call_id, op_timeout); return; } /* The client is connected to another node, relay this update to them */ update = stonith_create_op(0, op->id, STONITH_OP_TIMEOUT_UPDATE, NULL, 0); crm_xml_add(update, F_STONITH_REMOTE, op->id); crm_xml_add(update, F_STONITH_CLIENTID, client_id); crm_xml_add(update, F_STONITH_CALLID, call_id); crm_xml_add_int(update, F_STONITH_TIMEOUT, op_timeout); send_cluster_message(client_node, crm_msg_stonith_ng, update, FALSE); free_xml(update); } void call_remote_stonith(remote_fencing_op_t *op, st_query_result_t *peer) { const char *device = NULL; int timeout = op->base_timeout; if(peer == NULL && !is_set(op->call_options, st_opt_topology)) { peer = stonith_choose_peer(op); } if(!op->op_timer) { int op_timeout = get_op_total_timeout(op, peer, op->base_timeout); op->op_timer = g_timeout_add((1200 * op_timeout), remote_op_timeout, op); report_timeout_period(op, op_timeout); crm_info("Total remote op timeout set to %d for fencing of node %s", op_timeout, op->target); } if(is_set(op->call_options, st_opt_topology)) { /* Ignore any preference, they might not have the device we need */ /* When using topology, the stonith_choose_peer function pops off * the peer from the op's query results. Make sure to calculate * the op_timeout before calling this function when topology is in use */ peer = stonith_choose_peer(op); device = op->devices->data; timeout = get_device_timeout(peer, device, timeout); } if(peer) { xmlNode *query = stonith_create_op(0, op->id, STONITH_OP_FENCE, NULL, 0); crm_xml_add(query, F_STONITH_REMOTE, op->id); crm_xml_add(query, F_STONITH_TARGET, op->target); crm_xml_add(query, F_STONITH_ACTION, op->action); crm_xml_add(query, F_STONITH_ORIGIN, op->originator); crm_xml_add(query, F_STONITH_CLIENTID, op->client_id); crm_xml_add(query, F_STONITH_CLIENTNAME, op->client_name); crm_xml_add_int(query, F_STONITH_TIMEOUT, timeout); if(device) { crm_info("Requesting that %s perform op %s %s with %s", peer->host, op->action, op->target, device); crm_xml_add(query, F_STONITH_DEVICE, device); crm_xml_add(query, F_STONITH_MODE, "slave"); } else { crm_info("Requesting that %s perform op %s %s", peer->host, op->action, op->target); crm_xml_add(query, F_STONITH_MODE, "smart"); } op->state = st_exec; send_cluster_message(peer->host, crm_msg_stonith_ng, query, FALSE); free_xml(query); return; } else if(op->query_timer == 0) { /* We've exhausted all available peers */ crm_info("No remaining peers capable of terminating %s", op->target); remote_op_timeout(op); } else if(device) { crm_info("Waiting for additional peers capable of terminating %s with %s", op->target, device); } else { crm_info("Waiting for additional peers capable of terminating %s", op->target); } free_remote_query(peer); } static gint sort_peers(gconstpointer a, gconstpointer b) { const st_query_result_t *peer_a = a; const st_query_result_t *peer_b = a; if(peer_a->devices > peer_b->devices) { return -1; } else if(peer_a->devices > peer_b->devices) { return 1; } return 0; } int process_remote_stonith_query(xmlNode *msg) { int devices = 0; const char *id = NULL; const char *host = NULL; remote_fencing_op_t *op = NULL; st_query_result_t *result = NULL; xmlNode *dev = get_xpath_object("//@"F_STONITH_REMOTE, msg, LOG_ERR); xmlNode *child = NULL; CRM_CHECK(dev != NULL, return -EPROTO); id = crm_element_value(dev, F_STONITH_REMOTE); CRM_CHECK(id != NULL, return -EPROTO); dev = get_xpath_object("//@st-available-devices", msg, LOG_ERR); CRM_CHECK(dev != NULL, return -EPROTO); crm_element_value_int(dev, "st-available-devices", &devices); op = g_hash_table_lookup(remote_op_list, id); if(op == NULL) { crm_debug("Unknown or expired remote op: %s", id); return -EOPNOTSUPP; } op->replies++; host = crm_element_value(msg, F_ORIG); if(devices <= 0) { /* If we're doing 'known' then we might need to fire anyway */ crm_trace("Query result from %s (%d devices)", host, devices); return pcmk_ok; } else if(op->call_options & st_opt_allow_suicide) { crm_trace("Allowing %s to potentialy fence itself", op->target); } else if(safe_str_eq(host, op->target)) { crm_info("Ignoring reply from %s, hosts are not permitted to commit suicide", op->target); return pcmk_ok; } crm_debug("Query result from %s (%d devices)", host, devices); result = calloc(1, sizeof(st_query_result_t)); result->host = strdup(host); result->devices = devices; result->custom_action_timeouts = g_hash_table_new_full( crm_str_hash, g_str_equal, free, NULL); for (child = __xml_first_child(dev); child != NULL; child = __xml_next(child)) { const char *device = ID(child); int action_timeout = 0; if(device) { result->device_list = g_list_prepend(result->device_list, strdup(device)); crm_element_value_int(child, F_STONITH_ACTION_TIMEOUT, &action_timeout); if (action_timeout) { crm_trace("Peer %s with device %s returned action timeout %d", result->host, device, action_timeout); g_hash_table_insert(result->custom_action_timeouts, strdup(device), GINT_TO_POINTER(action_timeout)); } } } CRM_CHECK(devices == g_list_length(result->device_list), crm_err("Mis-match: Query claimed to have %d devices but %d found", devices, g_list_length(result->device_list))); op->query_results = g_list_insert_sorted(op->query_results, result, sort_peers); if(op->state == st_query && is_set(op->call_options, st_opt_all_replies) == FALSE) { call_remote_stonith(op, result); } else if(op->state == st_done) { crm_info("Discarding query result from %s (%d devices): Operation is in state %d", result->host, result->devices, op->state); } return pcmk_ok; } int process_remote_stonith_exec(xmlNode *msg) { int rc = 0; const char *id = NULL; remote_fencing_op_t *op = NULL; xmlNode *dev = get_xpath_object("//@"F_STONITH_REMOTE, msg, LOG_ERR); CRM_CHECK(dev != NULL, return -EPROTO); id = crm_element_value(dev, F_STONITH_REMOTE); CRM_CHECK(id != NULL, return -EPROTO); dev = get_xpath_object("//@"F_STONITH_RC, msg, LOG_ERR); CRM_CHECK(dev != NULL, return -EPROTO); crm_element_value_int(dev, F_STONITH_RC, &rc); if(remote_op_list) { op = g_hash_table_lookup(remote_op_list, id); } if(op == NULL && rc == pcmk_ok) { /* Record successful fencing operations */ const char *client_id = crm_element_value(msg, F_STONITH_CLIENTID); op = create_remote_stonith_op(client_id, msg, TRUE); } if(op == NULL) { /* Could be for an event that began before we started */ /* TODO: Record the op for later querying */ crm_info("Unknown or expired remote op: %s", id); return -EOPNOTSUPP; } if(is_set(op->call_options, st_opt_topology)) { const char *device = crm_element_value(msg, F_STONITH_DEVICE); crm_notice("Call to %s for %s on behalf of %s: %s (%d)", device, op->target, op->originator, rc == pcmk_ok?"passed":"failed", rc); if(safe_str_eq(op->originator, stonith_our_uname)) { if(op->state == st_done) { remote_op_done(op, msg, rc); return rc; } else if(rc == pcmk_ok && op->devices) { /* Success, are there any more? */ op->devices = op->devices->next; } if(op->devices == NULL) { crm_trace("Broadcasting completion of complex fencing op for %s", op->target); send_cluster_message(NULL, crm_msg_stonith_ng, msg, FALSE); op->state = st_done; return rc; } } else { op->state = st_done; remote_op_done(op, msg, rc); return rc; } } else if(rc == pcmk_ok && op->devices == NULL) { crm_trace("All done for %s", op->target); op->state = st_done; remote_op_done(op, msg, rc); return rc; } /* Retry on failure or execute the rest of the topology */ crm_trace("Next for %s (rc was %d)", op->target, rc); call_remote_stonith(op, NULL); return rc; } int stonith_fence_history(xmlNode *msg, xmlNode **output) { int rc = 0; const char *target = NULL; xmlNode *dev = get_xpath_object("//@"F_STONITH_TARGET, msg, LOG_TRACE); if(dev) { int options = 0; target = crm_element_value(dev, F_STONITH_TARGET); crm_element_value_int(msg, F_STONITH_CALLOPTS, &options); if(target && (options & st_opt_cs_nodeid)) { int nodeid = crm_atoi(target, NULL); crm_node_t *node = crm_get_peer(nodeid, NULL); if(node) { target = node->uname; } } } *output = create_xml_node(NULL, F_STONITH_HISTORY_LIST); if (remote_op_list) { GHashTableIter iter; remote_fencing_op_t *op = NULL; g_hash_table_iter_init(&iter, remote_op_list); while(g_hash_table_iter_next(&iter, NULL, (void**)&op)) { xmlNode *entry = NULL; if (target && strcmp(op->target, target) != 0) { continue; } rc = 0; entry = create_xml_node(*output, STONITH_OP_EXEC); crm_xml_add(entry, F_STONITH_TARGET, op->target); crm_xml_add(entry, F_STONITH_ACTION, op->action); crm_xml_add(entry, F_STONITH_ORIGIN, op->originator); crm_xml_add(entry, F_STONITH_DELEGATE, op->delegate); crm_xml_add_int(entry, F_STONITH_DATE, op->completed); crm_xml_add_int(entry, F_STONITH_STATE, op->state); } } return rc; } diff --git a/include/crm/stonith-ng.h b/include/crm/stonith-ng.h index 3a860b7f1a..fa20e16a50 100644 --- a/include/crm/stonith-ng.h +++ b/include/crm/stonith-ng.h @@ -1,424 +1,425 @@ /* * Copyright (C) 2004 Andrew Beekhof * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef STONITH_NG__H # define STONITH_NG__H # include # include /* TO-DO: Work out how to drop this requirement */ # include #define T_STONITH_NOTIFY_DISCONNECT "st_notify_disconnect" #define T_STONITH_NOTIFY_FENCE "st_notify_fence" /* *INDENT-OFF* */ enum stonith_state { stonith_connected_command, stonith_connected_query, stonith_disconnected, }; enum stonith_call_options { st_opt_none = 0x00000000, st_opt_verbose = 0x00000001, st_opt_allow_suicide = 0x00000002, st_opt_manual_ack = 0x00000008, st_opt_discard_reply = 0x00000010, st_opt_all_replies = 0x00000020, st_opt_topology = 0x00000040, st_opt_scope_local = 0x00000100, st_opt_cs_nodeid = 0x00000200, st_opt_sync_call = 0x00001000, /*! Allow the timeout period for a callback to be adjusted * based on the time the server reports the operation will take. */ st_opt_timeout_updates = 0x00002000, /*! Only report back if operation is a success in callback */ st_opt_report_only_success = 0x00004000, }; #define stonith_default_options = stonith_none enum op_state { st_query, st_exec, st_done, st_failed, }; typedef struct stonith_key_value_s { char *key; char *value; struct stonith_key_value_s *next; } stonith_key_value_t; typedef struct stonith_history_s { char *target; char *action; char *origin; char *delegate; int completed; int state; struct stonith_history_s *next; } stonith_history_t; typedef struct stonith_s stonith_t; typedef struct stonith_event_s { char *id; char *type; char *message; char *operation; int result; char *origin; char *target; + char *action; char *executioner; char *device; /*! The name of the client that initiated the action. */ char *client_origin; } stonith_event_t; typedef struct stonith_callback_data_s { int rc; int call_id; void *userdata; } stonith_callback_data_t; typedef struct stonith_api_operations_s { /*! * \brief Destroy the stonith api structure. */ int (*free) (stonith_t *st); /*! * \brief Connect to the local stonith daemon. * * \retval 0, success * \retval negative error code on failure */ int (*connect) (stonith_t *st, const char *name, int *stonith_fd); /*! * \brief Disconnect from the local stonith daemon. * * \retval 0, success * \retval negative error code on failure */ int (*disconnect)(stonith_t *st); /*! * \brief Remove a registered stonith device with the local stonith daemon. * * \note Synchronous, guaranteed to occur in daemon before function returns. * * \retval 0, success * \retval negative error code on failure */ int (*remove_device)( stonith_t *st, int options, const char *name); /*! * \brief Register a stonith device with the local stonith daemon. * * \note Synchronous, guaranteed to occur in daemon before function returns. * * \retval 0, success * \retval negative error code on failure */ int (*register_device)( stonith_t *st, int options, const char *id, const char *namespace, const char *agent, stonith_key_value_t *params); /*! * \brief Remove a fencing level for a specific node. * * \note This feature is not available when stonith is in standalone mode. * * \retval 0, success * \retval negative error code on failure */ int (*remove_level)( stonith_t *st, int options, const char *node, int level); /*! * \brief Register a fencing level containing the fencing devices to be used * at that level for a specific node. * * \note This feature is not available when stonith is in standalone mode. * * \retval 0, success * \retval negative error code on failure */ int (*register_level)( stonith_t *st, int options, const char *node, int level, stonith_key_value_t *device_list); /*! * \brief Get the metadata documentation for a resource. * * \note Value is returned in output. Output must be freed when set. * * \retval 0 success * \retval negative error code on failure */ int (*metadata)(stonith_t *st, int options, const char *device, const char *namespace, char **output, int timeout); /*! * \brief Retrieve a list of installed stonith agents * * \note if namespace is not provided, all known agents will be returned * \note list must be freed using stonith_key_value_freeall() * \note call_options parameter is not used, it is reserved for future use. * * \retval num items in list on success * \retval negative error code on failure */ int (*list_agents)(stonith_t *stonith, int call_options, const char *namespace, stonith_key_value_t **devices, int timeout); /*! * \brief Retrieve string listing hosts and port assignments from a local stonith device. * * \retval 0 on success * \retval negative error code on failure */ int (*list)(stonith_t *st, int options, const char *id, char **list_output, int timeout); /*! * \brief Check to see if a local stonith device is reachable * * \retval 0 on success * \retval negative error code on failure */ int (*monitor)(stonith_t *st, int options, const char *id, int timeout); /*! * \brief Check to see if a local stonith device's port is reachable * * \retval 0 on success * \retval negative error code on failure */ int (*status)(stonith_t *st, int options, const char *id, const char *port, int timeout); /*! * \brief Retrieve a list of registered stonith devices. * * \note If node is provided, only devices that can fence the node id * will be returned. * * \retval num items in list on success * \retval negative error code on failure */ int (*query)(stonith_t *st, int options, const char *node, stonith_key_value_t **devices, int timeout); /*! * \brief Issue a fencing action against a node. * * \note Possible actions are, 'on', 'off', and 'reboot'. * * \param st, stonith connection * \param options, call options * \param node, The target node to fence * \param action, The fencing action to take * \param timeout, The default per device timeout to use with each device * capable of fencing the target. * * \retval 0 success * \retval negative error code on failure. */ int (*fence)(stonith_t *st, int options, const char *node, const char *action, int timeout); /*! * \brief Manually confirm that a node is down. * * \retval 0 success * \retval negative error code on failure. */ int (*confirm)(stonith_t *st, int options, const char *node); /*! * \brief Retrieve a list of fencing operations that have occurred for a specific node. * * \note History is not available in standalone mode. * * \retval 0 success * \retval negative error code on failure. */ int (*history)(stonith_t *st, int options, const char *node, stonith_history_t **output, int timeout); int (*register_notification)( stonith_t *st, const char *event, void (*notify)(stonith_t *st, stonith_event_t *e)); int (*remove_notification)(stonith_t *st, const char *event); /*! * \brief Register a callback to receive the result of an async call id * * \param call_id, The call id to register the callback for. * \param timeout, The default timeout period to wait until this callback expires * \param options, Option flags, st_opt_timeout_updates and st_opt_report_only_success are the * only valid options for this function. * \param userdate, A pointer that will be handed back in the callback. * \param callback_name, Unique name given to callback * \param callback, The callback function * * \retval 0 success * \retval negative error code on failure. */ int (*register_callback)(stonith_t *st, int call_id, int timeout, int options, void *userdata, const char *callback_name, void (*callback)(stonith_t *st, stonith_callback_data_t *data)); /*! * \brief Remove a registered callback for a given call id. */ int (*remove_callback)(stonith_t *st, int call_id, bool all_callbacks); } stonith_api_operations_t; struct stonith_s { enum stonith_state state; int call_id; int call_timeout; void *private; stonith_api_operations_t *cmds; }; /* *INDENT-ON* */ /* Core functions */ stonith_t *stonith_api_new(void); void stonith_api_delete(stonith_t * st); void stonith_dump_pending_callbacks(stonith_t * st); const char *get_stonith_provider(const char *agent, const char *provider); bool stonith_dispatch(stonith_t * st); stonith_key_value_t *stonith_key_value_add(stonith_key_value_t * kvp, const char *key, const char *value); void stonith_key_value_freeall(stonith_key_value_t * kvp, int keys, int values); /* Basic helpers that allows nodes to be fenced and the history to be * queried without mainloop or the caller understanding the full API * * At least one of nodeid and uname are required */ int stonith_api_kick(int nodeid, const char *uname, int timeout, bool off); time_t stonith_api_time(int nodeid, const char *uname, bool in_progress); /* * Helpers for using the above functions without install-time dependancies * * Usage: * #include * * To turn a node off by corosync nodeid: * stonith_api_kick_helper(nodeid, 120, 1); * * To check the last fence date/time (also by nodeid): * last = stonith_api_time_helper(nodeid, 0); * * To check if fencing is in progress: * if(stonith_api_time_helper(nodeid, 1) > 0) { ... } * * eg. #include #include #include int main(int argc, char ** argv) { int rc = 0; int nodeid = 102; rc = stonith_api_time_helper(nodeid, 0); printf("%d last fenced at %s\n", nodeid, ctime(rc)); rc = stonith_api_kick_helper(nodeid, 120, 1); printf("%d fence result: %d\n", nodeid, rc); rc = stonith_api_time_helper(nodeid, 0); printf("%d last fenced at %s\n", nodeid, ctime(rc)); return 0; } */ # define STONITH_LIBRARY "libstonithd.so.2" static inline int stonith_api_kick_helper(int nodeid, int timeout, bool off) { static void *st_library = NULL; static int (*st_kick_fn) (int nodeid, const char *uname, int timeout, bool off) = NULL; if (st_library == NULL) { st_library = dlopen(STONITH_LIBRARY, RTLD_LAZY); } if (st_library && st_kick_fn == NULL) { st_kick_fn = dlsym(st_library, "stonith_api_kick"); } if (st_kick_fn == NULL) { return -ELIBACC; } return (*st_kick_fn) (nodeid, NULL, timeout, off); } static inline time_t stonith_api_time_helper(int nodeid, bool in_progress) { static void *st_library = NULL; static time_t(*st_time_fn) (int nodeid, const char *uname, bool in_progress) = NULL; if (st_library == NULL) { st_library = dlopen(STONITH_LIBRARY, RTLD_LAZY); } if (st_library && st_time_fn == NULL) { st_time_fn = dlsym(st_library, "stonith_api_time"); } if (st_time_fn == NULL) { return 0; } return (*st_time_fn) (nodeid, NULL, in_progress); } #endif diff --git a/lib/fencing/st_client.c b/lib/fencing/st_client.c index 53df8b0768..6ef9a0687d 100644 --- a/lib/fencing/st_client.c +++ b/lib/fencing/st_client.c @@ -1,2265 +1,2267 @@ /* * Copyright (c) 2004 Andrew Beekhof * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * */ #include #include #include #include #include #include #include #include #include #include #include #include #include /* Add it for compiling on OSX */ #include #include #include #include #include #ifdef HAVE_STONITH_STONITH_H # include # define LHA_STONITH_LIBRARY "libstonith.so.1" static void *lha_agents_lib = NULL; #endif #include CRM_TRACE_INIT_DATA(stonith); struct stonith_action_s { char *agent; char *action; char *victim; char *args; int timeout; int async; void *userdata; void (*done_cb)(GPid pid, gint status, const char *output, gpointer user_data); /* async track data */ int fd_stdout; int last_timeout_signo; guint timer_sigterm; guint timer_sigkill; /* output data */ GPid pid; int rc; char *output; }; typedef struct stonith_private_s { char *token; crm_ipc_t *ipc; mainloop_io_t *source; GHashTable *stonith_op_callback_table; GList *notify_list; void (*op_callback) (stonith_t * st, stonith_callback_data_t *data); } stonith_private_t; typedef struct stonith_notify_client_s { const char *event; const char *obj_id; /* implement one day */ const char *obj_type; /* implement one day */ void (*notify) (stonith_t * st, stonith_event_t *e); } stonith_notify_client_t; typedef struct stonith_callback_client_s { void (*callback) (stonith_t * st, stonith_callback_data_t *data); const char *id; void *user_data; gboolean only_success; gboolean allow_timeout_updates; struct timer_rec_s *timer; } stonith_callback_client_t; struct notify_blob_s { stonith_t *stonith; xmlNode *xml; }; struct timer_rec_s { int call_id; int timeout; guint ref; stonith_t *stonith; }; typedef int (*stonith_op_t) (const char *, int, const char *, xmlNode *, xmlNode *, xmlNode *, xmlNode **, xmlNode **); static const char META_TEMPLATE[] = "\n" "\n" "\n" " 1.0\n" " \n" "%s\n" " \n" " %s\n" "%s\n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " \n" " 2.0\n" " \n" "\n"; bool stonith_dispatch(stonith_t * st); int stonith_dispatch_internal(const char *buffer, ssize_t length, gpointer userdata); void stonith_perform_callback(stonith_t * stonith, xmlNode * msg, int call_id, int rc); xmlNode *stonith_create_op(int call_id, const char *token, const char *op, xmlNode * data, int call_options); int stonith_send_command(stonith_t * stonith, const char *op, xmlNode * data, xmlNode ** output_data, int call_options, int timeout); static void stonith_connection_destroy(gpointer user_data); static void stonith_send_notification(gpointer data, gpointer user_data); static void stonith_connection_destroy(gpointer user_data) { stonith_t *stonith = user_data; stonith_private_t *native = NULL; struct notify_blob_s blob; crm_trace("Sending destroyed notification"); blob.stonith = stonith; blob.xml = create_xml_node(NULL, "notify"); native = stonith->private; native->ipc = NULL; native->source = NULL; stonith->state = stonith_disconnected; crm_xml_add(blob.xml, F_TYPE, T_STONITH_NOTIFY); crm_xml_add(blob.xml, F_SUBTYPE, T_STONITH_NOTIFY_DISCONNECT); g_list_foreach(native->notify_list, stonith_send_notification, &blob); free_xml(blob.xml); } xmlNode * create_device_registration_xml(const char *id, const char *namespace, const char *agent, stonith_key_value_t * params) { xmlNode *data = create_xml_node(NULL, F_STONITH_DEVICE); xmlNode *args = create_xml_node(data, XML_TAG_ATTRS); crm_xml_add(data, XML_ATTR_ID, id); crm_xml_add(data, "origin", __FUNCTION__); crm_xml_add(data, "agent", agent); crm_xml_add(data, "namespace", namespace); for (; params; params = params->next) { hash2field((gpointer) params->key, (gpointer) params->value, args); } return data; } static int stonith_api_register_device(stonith_t * st, int call_options, const char *id, const char *namespace, const char *agent, stonith_key_value_t * params) { int rc = 0; xmlNode *data = NULL; #if HAVE_STONITH_STONITH_H namespace = get_stonith_provider(agent, namespace); if (safe_str_eq(namespace, "heartbeat")) { stonith_key_value_add(params, "plugin", agent); agent = "fence_legacy"; } #endif data = create_device_registration_xml(id, namespace, agent, params); rc = stonith_send_command(st, STONITH_OP_DEVICE_ADD, data, NULL, call_options, 0); free_xml(data); return rc; } static int stonith_api_remove_device(stonith_t * st, int call_options, const char *name) { int rc = 0; xmlNode *data = NULL; data = create_xml_node(NULL, F_STONITH_DEVICE); crm_xml_add(data, "origin", __FUNCTION__); crm_xml_add(data, XML_ATTR_ID, name); rc = stonith_send_command(st, STONITH_OP_DEVICE_DEL, data, NULL, call_options, 0); free_xml(data); return rc; } static int stonith_api_remove_level(stonith_t * st, int options, const char *node, int level) { int rc = 0; xmlNode *data = NULL; data = create_xml_node(NULL, F_STONITH_LEVEL); crm_xml_add(data, "origin", __FUNCTION__); crm_xml_add(data, F_STONITH_TARGET, node); crm_xml_add_int(data, XML_ATTR_ID, level); rc = stonith_send_command(st, STONITH_OP_LEVEL_DEL, data, NULL, options, 0); free_xml(data); return rc; } xmlNode * create_level_registration_xml(const char *node, int level, stonith_key_value_t * device_list) { xmlNode *data = create_xml_node(NULL, F_STONITH_LEVEL); crm_xml_add_int(data, XML_ATTR_ID, level); crm_xml_add(data, F_STONITH_TARGET, node); crm_xml_add(data, "origin", __FUNCTION__); for (; device_list; device_list = device_list->next) { xmlNode *dev = create_xml_node(data, F_STONITH_DEVICE); crm_xml_add(dev, XML_ATTR_ID, device_list->value); } return data; } static int stonith_api_register_level(stonith_t * st, int options, const char *node, int level, stonith_key_value_t * device_list) { int rc = 0; xmlNode *data = create_level_registration_xml(node, level, device_list); rc = stonith_send_command(st, STONITH_OP_LEVEL_ADD, data, NULL, options, 0); free_xml(data); return rc; } static void append_arg(gpointer key, gpointer value, gpointer user_data) { int len = 3; /* =, \n, \0 */ int last = 0; char **args = user_data; CRM_CHECK(key != NULL, return); CRM_CHECK(value != NULL, return); if (strstr(key, "pcmk_")) { return; } else if (strstr(key, CRM_META)) { return; } else if (safe_str_eq(key, "crm_feature_set")) { return; } len += strlen(key); len += strlen(value); if (*args != NULL) { last = strlen(*args); } *args = realloc(*args, last + len); crm_trace("Appending: %s=%s", (char *)key, (char *)value); sprintf((*args) + last, "%s=%s\n", (char *)key, (char *)value); } static void append_const_arg(const char *key, const char *value, char **arg_list) { char *glib_sucks_key = strdup(key); char *glib_sucks_value = strdup(value); append_arg(glib_sucks_key, glib_sucks_value, arg_list); free(glib_sucks_value); free(glib_sucks_key); } static void append_host_specific_args(const char *victim, const char *map, GHashTable * params, char **arg_list) { char *name = NULL; int last = 0, lpc = 0, max = 0; if (map == NULL) { /* The best default there is for now... */ crm_debug("Using default arg map: port=uname"); append_const_arg("port", victim, arg_list); return; } max = strlen(map); crm_debug("Processing arg map: %s", map); for (; lpc < max + 1; lpc++) { if (isalpha(map[lpc])) { /* keep going */ } else if (map[lpc] == '=' || map[lpc] == ':') { free(name); name = calloc(1, 1 + lpc - last); memcpy(name, map + last, lpc - last); crm_debug("Got name: %s", name); last = lpc + 1; } else if (map[lpc] == 0 || map[lpc] == ',' || isspace(map[lpc])) { char *param = NULL; const char *value = NULL; param = calloc(1, 1 + lpc - last); memcpy(param, map + last, lpc - last); last = lpc + 1; crm_debug("Got key: %s", param); if (name == NULL) { crm_err("Misparsed '%s', found '%s' without a name", map, param); free(param); continue; } if (safe_str_eq(param, "uname")) { value = victim; } else { char *key = crm_meta_name(param); value = g_hash_table_lookup(params, key); free(key); } if (value) { crm_debug("Setting '%s'='%s' (%s) for %s", name, value, param, victim); append_const_arg(name, value, arg_list); } else { crm_err("No node attribute '%s' for '%s'", name, victim); } free(name); name = NULL; free(param); if (map[lpc] == 0) { break; } } else if (isspace(map[lpc])) { last = lpc; } } free(name); } static char * make_args(const char *action, const char *victim, GHashTable * device_args, GHashTable * port_map) { char buffer[512]; char *arg_list = NULL; const char *value = NULL; CRM_CHECK(action != NULL, return NULL); if (device_args) { g_hash_table_foreach(device_args, append_arg, &arg_list); } buffer[511] = 0; snprintf(buffer, 511, "pcmk_%s_action", action); if (device_args) { value = g_hash_table_lookup(device_args, buffer); } if (value == NULL && device_args) { /* Legacy support for early 1.1 releases - Remove for 1.4 */ snprintf(buffer, 511, "pcmk_%s_cmd", action); value = g_hash_table_lookup(device_args, buffer); } if (value == NULL && device_args && safe_str_eq(action, "off")) { /* Legacy support for late 1.1 releases - Remove for 1.4 */ value = g_hash_table_lookup(device_args, "pcmk_poweroff_action"); } if (value) { crm_info("Substituting action '%s' for requested operation '%s'", value, action); action = value; } append_const_arg(STONITH_ATTR_ACTION_OP, action, &arg_list); if (victim && device_args) { const char *alias = victim; const char *param = g_hash_table_lookup(device_args, STONITH_ATTR_HOSTARG); if (port_map && g_hash_table_lookup(port_map, victim)) { alias = g_hash_table_lookup(port_map, victim); } /* Always supply the node's name too: * https://fedorahosted.org/cluster/wiki/FenceAgentAPI */ append_const_arg("nodename", victim, &arg_list); /* Check if we need to supply the victim in any other form */ if (param == NULL) { const char *map = g_hash_table_lookup(device_args, STONITH_ATTR_ARGMAP); if (map == NULL) { param = "port"; value = g_hash_table_lookup(device_args, param); } else { /* Legacy handling */ append_host_specific_args(alias, map, device_args, &arg_list); value = map; /* Nothing more to do */ } } else if (safe_str_eq(param, "none")) { value = param; /* Nothing more to do */ } else { value = g_hash_table_lookup(device_args, param); } /* Don't overwrite explictly set values for $param */ if (value == NULL || safe_str_eq(value, "dynamic")) { crm_debug("Performing %s action for node '%s' as '%s=%s'", action, victim, param, alias); append_const_arg(param, alias, &arg_list); } } crm_trace("Calculated: %s", arg_list); return arg_list; } static gboolean st_child_term(gpointer data) { int rc = 0; stonith_action_t *track = data; crm_info("Child %d timed out, sending SIGTERM", track->pid); track->timer_sigterm = 0; track->last_timeout_signo = SIGTERM; rc = kill(track->pid, SIGTERM); if(rc < 0) { crm_perror(LOG_ERR, "Couldn't send SIGTERM to %d", track->pid); } return FALSE; } static gboolean st_child_kill(gpointer data) { int rc = 0; stonith_action_t *track = data; crm_info("Child %d timed out, sending SIGKILL", track->pid); track->timer_sigkill = 0; track->last_timeout_signo = SIGKILL; rc = kill(track->pid, SIGKILL); if(rc < 0) { crm_perror(LOG_ERR, "Couldn't send SIGKILL to %d", track->pid); } return FALSE; } static void stonith_action_destroy(stonith_action_t *action) { if (action->timer_sigterm > 0) { g_source_remove(action->timer_sigterm); } if (action->timer_sigkill > 0) { g_source_remove(action->timer_sigkill); } if (action->fd_stdout) { close(action->fd_stdout); } free(action->agent); free(action->args); free(action->output); free(action->action); free(action->victim); free(action); } stonith_action_t * stonith_action_create(const char *agent, const char *_action, const char *victim, int timeout, GHashTable * device_args, GHashTable * port_map) { stonith_action_t *action; action = calloc(1, sizeof(stonith_action_t)); action->args = make_args(_action, victim, device_args, port_map); action->agent = strdup(agent); action->action = strdup(_action); if (victim) { action->victim = strdup(victim); } action->timeout = timeout; return action; } #define READ_MAX 500 static char* read_output(int fd) { char buffer[READ_MAX]; char *output = NULL; int len = 0; int more = 0; if (!fd) { return NULL; } do { errno = 0; memset(&buffer, 0, READ_MAX); more = read(fd, buffer, READ_MAX-1); if (more > 0) { crm_trace("Got %d more bytes: %s", more, buffer); output = realloc(output, len + more + 1); sprintf(output+len, "%s", buffer); len += more; } } while (more == (READ_MAX-1) || (more < 0 && errno == EINTR)); return output; } static void stonith_action_async_done(GPid pid, gint status, gpointer user_data) { int rc = -pcmk_err_generic; stonith_action_t *action = user_data; if (action->timer_sigterm > 0) { g_source_remove(action->timer_sigterm); } if (action->timer_sigkill > 0) { g_source_remove(action->timer_sigkill); } if(action->last_timeout_signo) { rc = -ETIME; crm_notice("Child process %d performing action '%s' timed out with signal %d", pid, action->action, action->last_timeout_signo); } else if(WIFSIGNALED(status)) { int signo = WTERMSIG(status); rc = -ECONNABORTED; crm_notice("Child process %d performing action '%s' timed out with signal %d", pid, action->action, signo); } else if(WIFEXITED(status)) { rc = WEXITSTATUS(status); crm_debug("Child process %d performing action '%s' exited with rc %d", pid, action->action, rc); } action->rc = rc; action->output = read_output(action->fd_stdout); if (action->done_cb) { action->done_cb(pid, action->rc, action->output, action->userdata); } stonith_action_destroy(action); } static int internal_stonith_action_execute(stonith_action_t *action) { int pid, status, len, rc = -EPROTO; int ret; int total = 0; int p_read_fd, p_write_fd; /* parent read/write file descriptors */ int c_read_fd, c_write_fd; /* child read/write file descriptors */ int fd1[2]; int fd2[2]; c_read_fd = c_write_fd = p_read_fd = p_write_fd = -1; if (action->args == NULL || action->agent == NULL) goto fail; len = strlen(action->args); if (pipe(fd1)) goto fail; p_read_fd = fd1[0]; c_write_fd = fd1[1]; if (pipe(fd2)) goto fail; c_read_fd = fd2[0]; p_write_fd = fd2[1]; crm_debug("forking"); pid = fork(); if (pid < 0) { rc = -ECHILD; goto fail; } if (!pid) { /* child */ close(1); /* coverity[leaked_handle] False positive */ if (dup(c_write_fd) < 0) goto fail; close(2); /* coverity[leaked_handle] False positive */ if (dup(c_write_fd) < 0) goto fail; close(0); /* coverity[leaked_handle] False positive */ if (dup(c_read_fd) < 0) goto fail; /* keep c_write_fd open so parent can report all errors. */ close(c_read_fd); close(p_read_fd); close(p_write_fd); execlp(action->agent, action->agent, NULL); exit(EXIT_FAILURE); } /* parent */ action->pid = pid; ret = fcntl(p_read_fd, F_SETFL, fcntl(p_read_fd, F_GETFL, 0) | O_NONBLOCK); if(ret < 0) { crm_perror(LOG_NOTICE, "Could not change the output of %s to be non-blocking", action->agent); } do { crm_debug("sending args"); ret = write(p_write_fd, action->args + total, len - total); if (ret > 0) { total += ret; } } while (errno == EINTR && total < len); if (total != len) { crm_perror(LOG_ERR, "Sent %d not %d bytes", total, len); if (ret >= 0) { rc = -EREMOTEIO; } goto fail; } close(p_write_fd); /* async */ if (action->async) { action->fd_stdout = p_read_fd; g_child_watch_add(pid, stonith_action_async_done, action); crm_trace("Op: %s on %s, pid: %d, timeout: %ds", action->action, action->agent, pid, action->timeout); action->last_timeout_signo = 0; if (action->timeout) { action->timer_sigterm = g_timeout_add(1000*action->timeout, st_child_term, action); action->timer_sigkill = g_timeout_add(1000*(action->timeout+5), st_child_kill, action); } else { crm_err("No timeout set for stonith operation %s with device %s", action->action, action->agent); } close(c_write_fd); close(c_read_fd); return 0; } else { /* sync */ int timeout = action->timeout + 1; pid_t p = 0; while (action->timeout < 0 || timeout > 0) { p = waitpid(pid, &status, WNOHANG); if (p > 0) { break; } sleep(1); timeout--; }; if (timeout == 0) { int killrc = kill(pid, 9 /*SIGKILL*/); if (killrc && errno != ESRCH) { crm_err("kill(%d, KILL) failed: %d", pid, errno); } } if (p <= 0) { crm_perror(LOG_ERR, "waitpid(%d)", pid); } else if (p != pid) { crm_err("Waited for %d, got %d", pid, p); } action->output = read_output(p_read_fd); action->rc = rc = -ECONNABORTED; if (timeout == 0) { action->rc = -ETIME; } else if (WIFEXITED(status)) { crm_debug("result = %d", WEXITSTATUS(status)); action->rc = -WEXITSTATUS(status); rc = 0; } else if (WIFSIGNALED(status)) { crm_err("call %s for %s exited due to signal %d", action->action, action->agent, WTERMSIG(status)); } else { crm_err("call %s for %s exited abnormally. stopped=%d, continued=%d", action->action, action->agent, WIFSTOPPED(status), WIFCONTINUED(status)); } } fail: if (p_read_fd >= 0) { close(p_read_fd); } if (p_write_fd >= 0) { close(p_write_fd); } if (c_read_fd >= 0) { close(c_read_fd); } if (c_write_fd >= 0) { close(c_write_fd); } return rc; } GPid stonith_action_execute_async(stonith_action_t *action, void *userdata, void (*done)(GPid pid, int rc, const char *output, gpointer user_data)) { int rc = 0; if (!action) { return -1; } action->userdata = userdata; action->done_cb = done; action->async = 1; rc = internal_stonith_action_execute(action); return rc ? rc : action->pid; } int stonith_action_execute(stonith_action_t *action, int *agent_result, char **output) { int rc = 0; if (!action) { return -1; } rc = internal_stonith_action_execute(action); if (rc) { /* error */ return rc; } if (agent_result) { *agent_result = action->rc; } if (output) { *output = action->output; action->output = NULL; /* handed it off, do not free */ } stonith_action_destroy(action); return rc; } static int stonith_api_device_list(stonith_t * stonith, int call_options, const char *namespace, stonith_key_value_t ** devices, int timeout) { int count = 0; if (devices == NULL) { crm_err("Parameter error: stonith_api_device_list"); return -EFAULT; } /* Include Heartbeat agents */ if (namespace == NULL || safe_str_eq("heartbeat", namespace)) { #if HAVE_STONITH_STONITH_H static gboolean need_init = TRUE; char **entry = NULL; char **type_list = NULL; static char **(*type_list_fn) (void) = NULL; static void (*type_free_fn) (char **) = NULL; if(need_init) { need_init = FALSE; type_list_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_types", FALSE); type_free_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_free_hostlist", FALSE); } if(type_list_fn) { type_list = (*type_list_fn)(); } for (entry = type_list; entry != NULL && *entry; ++entry) { crm_trace("Added: %s", *entry); *devices = stonith_key_value_add(*devices, NULL, *entry); count++; } if (type_list && type_free_fn) { (*type_free_fn)(type_list); } #else if(namespace != NULL) { return -EINVAL; /* Heartbeat agents not supported */ } #endif } /* Include Red Hat agents, basically: ls -1 @sbin_dir@/fence_* */ if (namespace == NULL || safe_str_eq("redhat", namespace)) { struct dirent **namelist; int file_num = scandir(RH_STONITH_DIR, &namelist, 0, alphasort); if (file_num > 0) { struct stat prop; char buffer[FILENAME_MAX + 1]; while (file_num--) { if ('.' == namelist[file_num]->d_name[0]) { free(namelist[file_num]); continue; } else if (0 != strncmp(RH_STONITH_PREFIX, namelist[file_num]->d_name, strlen(RH_STONITH_PREFIX))) { free(namelist[file_num]); continue; } snprintf(buffer, FILENAME_MAX, "%s/%s", RH_STONITH_DIR, namelist[file_num]->d_name); if (stat(buffer, &prop) == 0 && S_ISREG(prop.st_mode)) { *devices = stonith_key_value_add(*devices, NULL, namelist[file_num]->d_name); count++; } free(namelist[file_num]); } free(namelist); } } return count; } static int stonith_api_device_metadata(stonith_t * stonith, int call_options, const char *agent, const char *namespace, char **output, int timeout) { int rc = 0; char *buffer = NULL; const char *provider = get_stonith_provider(agent, namespace); crm_trace("looking up %s/%s metadata", agent, provider); /* By having this in a library, we can access it from stonith_admin * when neither lrmd or stonith-ng are running * Important for the crm shell's validations... */ if (safe_str_eq(provider, "redhat")) { stonith_action_t *action = stonith_action_create(agent, "metadata", NULL, 5, NULL, NULL); int exec_rc = stonith_action_execute(action, &rc, &buffer); if (exec_rc < 0 || rc != 0 || buffer == NULL) { crm_debug("Query failed: %d %d: %s", exec_rc, rc, crm_str(buffer)); free(buffer); /* Just in case */ return -EINVAL; } else { xmlNode *xml = string2xml(buffer); xmlNode *actions = NULL; xmlXPathObject *xpathObj = NULL; xpathObj = xpath_search(xml, "//actions"); if (xpathObj && xpathObj->nodesetval->nodeNr > 0) { actions = getXpathResult(xpathObj, 0); } /* Now fudge the metadata so that the start/stop actions appear */ xpathObj = xpath_search(xml, "//action[@name='stop']"); if (xpathObj == NULL || xpathObj->nodesetval->nodeNr <= 0) { xmlNode *tmp = NULL; tmp = create_xml_node(actions, "action"); crm_xml_add(tmp, "name", "stop"); crm_xml_add(tmp, "timeout", "20s"); tmp = create_xml_node(actions, "action"); crm_xml_add(tmp, "name", "start"); crm_xml_add(tmp, "timeout", "20s"); } /* Now fudge the metadata so that the port isn't required in the configuration */ xpathObj = xpath_search(xml, "//parameter[@name='port']"); if (xpathObj && xpathObj->nodesetval->nodeNr > 0) { /* We'll fill this in */ xmlNode *tmp = getXpathResult(xpathObj, 0); crm_xml_add(tmp, "required", "0"); } free(buffer); buffer = dump_xml_formatted(xml); free_xml(xml); } } else { #if !HAVE_STONITH_STONITH_H return -EINVAL; /* Heartbeat agents not supported */ #else int bufferlen = 0; static const char *no_parameter_info = ""; Stonith *stonith_obj = NULL; static gboolean need_init = TRUE; static Stonith *(*st_new_fn) (const char *) = NULL; static const char *(*st_info_fn) (Stonith *, int) = NULL; static void (*st_del_fn) (Stonith *) = NULL; if(need_init) { need_init = FALSE; st_new_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_new", FALSE); st_del_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_delete", FALSE); st_info_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_get_info", FALSE); } if (lha_agents_lib && st_new_fn && st_del_fn && st_info_fn) { char *xml_meta_longdesc = NULL; char *xml_meta_shortdesc = NULL; char *meta_param = NULL; char *meta_longdesc = NULL; char *meta_shortdesc = NULL; stonith_obj = (*st_new_fn) (agent); if(stonith_obj) { meta_longdesc = strdup((*st_info_fn)(stonith_obj, ST_DEVICEDESCR)); if (meta_longdesc == NULL) { crm_warn("no long description in %s's metadata.", agent); meta_longdesc = strdup(no_parameter_info); } meta_shortdesc = strdup((*st_info_fn)(stonith_obj, ST_DEVICEID)); if (meta_shortdesc == NULL) { crm_warn("no short description in %s's metadata.", agent); meta_shortdesc = strdup(no_parameter_info); } meta_param = strdup((*st_info_fn)(stonith_obj, ST_CONF_XML)); if (meta_param == NULL) { crm_warn("no list of parameters in %s's metadata.", agent); meta_param = strdup(no_parameter_info); } (*st_del_fn)(stonith_obj); } else { return -EINVAL; /* Heartbeat agents not supported */ } xml_meta_longdesc = (char *)xmlEncodeEntitiesReentrant(NULL, (const unsigned char *)meta_longdesc); xml_meta_shortdesc = (char *)xmlEncodeEntitiesReentrant(NULL, (const unsigned char *)meta_shortdesc); bufferlen = strlen(META_TEMPLATE) + strlen(agent) + strlen(xml_meta_longdesc) + strlen(xml_meta_shortdesc) + strlen(meta_param) + 1; buffer = calloc(1, bufferlen); snprintf(buffer, bufferlen - 1, META_TEMPLATE, agent, xml_meta_longdesc, xml_meta_shortdesc, meta_param); xmlFree(xml_meta_longdesc); xmlFree(xml_meta_shortdesc); free(meta_shortdesc); free(meta_longdesc); free(meta_param); } #endif } if (output) { *output = buffer; } else { free(buffer); } return rc; } static int stonith_api_query(stonith_t * stonith, int call_options, const char *target, stonith_key_value_t ** devices, int timeout) { int rc = 0, lpc = 0, max = 0; xmlNode *data = NULL; xmlNode *output = NULL; xmlXPathObjectPtr xpathObj = NULL; CRM_CHECK(devices != NULL, return -EINVAL); data = create_xml_node(NULL, F_STONITH_DEVICE); crm_xml_add(data, "origin", __FUNCTION__); crm_xml_add(data, F_STONITH_TARGET, target); rc = stonith_send_command(stonith, STONITH_OP_QUERY, data, &output, call_options, timeout); if (rc < 0) { return rc; } xpathObj = xpath_search(output, "//@agent"); if (xpathObj) { max = xpathObj->nodesetval->nodeNr; for (lpc = 0; lpc < max; lpc++) { xmlNode *match = getXpathResult(xpathObj, lpc); CRM_CHECK(match != NULL, continue); crm_info("%s[%d] = %s", "//@agent", lpc, xmlGetNodePath(match)); *devices = stonith_key_value_add(*devices, NULL, crm_element_value(match, XML_ATTR_ID)); } } free_xml(output); free_xml(data); return max; } static int stonith_api_call(stonith_t * stonith, int call_options, const char *id, const char *action, const char *victim, int timeout, xmlNode **output) { int rc = 0; xmlNode *data = NULL; data = create_xml_node(NULL, F_STONITH_DEVICE); crm_xml_add(data, "origin", __FUNCTION__); crm_xml_add(data, F_STONITH_DEVICE, id); crm_xml_add(data, F_STONITH_ACTION, action); crm_xml_add(data, F_STONITH_TARGET, victim); rc = stonith_send_command(stonith, STONITH_OP_EXEC, data, output, call_options, timeout); free_xml(data); return rc; } static int stonith_api_list(stonith_t * stonith, int call_options, const char *id, char **list_info, int timeout) { int rc; xmlNode *output = NULL; rc = stonith_api_call(stonith, call_options, id, "list", NULL, timeout, &output); if (output && list_info) { const char *list_str; list_str = crm_element_value(output, "st_output"); if (list_str) { *list_info = strdup(list_str); } } if (output) { free_xml(output); } return rc; } static int stonith_api_monitor(stonith_t * stonith, int call_options, const char *id, int timeout) { return stonith_api_call(stonith, call_options, id, "monitor", NULL, timeout, NULL); } static int stonith_api_status(stonith_t * stonith, int call_options, const char *id, const char *port, int timeout) { return stonith_api_call(stonith, call_options, id, "status", port, timeout, NULL); } static int stonith_api_fence(stonith_t * stonith, int call_options, const char *node, const char *action, int timeout) { int rc = 0; xmlNode *data = NULL; data = create_xml_node(NULL, __FUNCTION__); crm_xml_add(data, F_STONITH_TARGET, node); crm_xml_add(data, F_STONITH_ACTION, action); crm_xml_add_int(data, F_STONITH_TIMEOUT, timeout); rc = stonith_send_command(stonith, STONITH_OP_FENCE, data, NULL, call_options, timeout); free_xml(data); return rc; } static int stonith_api_confirm(stonith_t * stonith, int call_options, const char *target) { return stonith_api_fence(stonith, call_options | st_opt_manual_ack, target, "off", 0); } static int stonith_api_history(stonith_t * stonith, int call_options, const char *node, stonith_history_t ** history, int timeout) { int rc = 0; xmlNode *data = NULL; xmlNode *output = NULL; stonith_history_t *last = NULL; *history = NULL; if (node) { data = create_xml_node(NULL, __FUNCTION__); crm_xml_add(data, F_STONITH_TARGET, node); } rc = stonith_send_command(stonith, STONITH_OP_FENCE_HISTORY, data, &output, call_options | st_opt_sync_call, timeout); free_xml(data); if (rc == 0) { xmlNode *op = NULL; xmlNode *reply = get_xpath_object("//" F_STONITH_HISTORY_LIST, output, LOG_ERR); for (op = __xml_first_child(reply); op != NULL; op = __xml_next(op)) { stonith_history_t *kvp; kvp = calloc(1, sizeof(stonith_history_t)); kvp->target = crm_element_value_copy(op, F_STONITH_TARGET); kvp->action = crm_element_value_copy(op, F_STONITH_ACTION); kvp->origin = crm_element_value_copy(op, F_STONITH_ORIGIN); kvp->delegate = crm_element_value_copy(op, F_STONITH_DELEGATE); crm_element_value_int(op, F_STONITH_DATE, &kvp->completed); crm_element_value_int(op, F_STONITH_STATE, &kvp->state); if (last) { last->next = kvp; } else { *history = kvp; } last = kvp; } } return rc; } gboolean is_redhat_agent(const char *agent) { int rc = 0; struct stat prop; char buffer[FILENAME_MAX + 1]; snprintf(buffer, FILENAME_MAX, "%s/%s", RH_STONITH_DIR, agent); rc = stat(buffer, &prop); if (rc >= 0 && S_ISREG(prop.st_mode)) { return TRUE; } return FALSE; } const char * get_stonith_provider(const char *agent, const char *provider) { /* This function sucks */ if (is_redhat_agent(agent)) { return "redhat"; #if HAVE_STONITH_STONITH_H } else { Stonith *stonith_obj = NULL; static gboolean need_init = TRUE; static Stonith *(*st_new_fn) (const char *) = NULL; static void (*st_del_fn) (Stonith *) = NULL; if(need_init) { need_init = FALSE; st_new_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_new", FALSE); st_del_fn = find_library_function(&lha_agents_lib, LHA_STONITH_LIBRARY, "stonith_delete", FALSE); } if (lha_agents_lib && st_new_fn && st_del_fn) { stonith_obj = (*st_new_fn) (agent); if(stonith_obj) { (*st_del_fn)(stonith_obj); return "heartbeat"; } } #endif } crm_err("No such device: %s", agent); return NULL; } static gint stonithlib_GCompareFunc(gconstpointer a, gconstpointer b) { int rc = 0; const stonith_notify_client_t *a_client = a; const stonith_notify_client_t *b_client = b; CRM_CHECK(a_client->event != NULL && b_client->event != NULL, return 0); rc = strcmp(a_client->event, b_client->event); if (rc == 0) { if (a_client->notify == NULL || b_client->notify == NULL) { return 0; } else if (a_client->notify == b_client->notify) { return 0; } else if (((long)a_client->notify) < ((long)b_client->notify)) { crm_err("callbacks for %s are not equal: %p vs. %p", a_client->event, a_client->notify, b_client->notify); return -1; } crm_err("callbacks for %s are not equal: %p vs. %p", a_client->event, a_client->notify, b_client->notify); return 1; } return rc; } xmlNode * stonith_create_op(int call_id, const char *token, const char *op, xmlNode * data, int call_options) { xmlNode *op_msg = create_xml_node(NULL, "stonith_command"); CRM_CHECK(op_msg != NULL, return NULL); CRM_CHECK(token != NULL, return NULL); crm_xml_add(op_msg, F_XML_TAGNAME, "stonith_command"); crm_xml_add(op_msg, F_TYPE, T_STONITH_NG); crm_xml_add(op_msg, F_STONITH_CALLBACK_TOKEN, token); crm_xml_add(op_msg, F_STONITH_OPERATION, op); crm_xml_add_int(op_msg, F_STONITH_CALLID, call_id); crm_trace("Sending call options: %.8lx, %d", (long)call_options, call_options); crm_xml_add_int(op_msg, F_STONITH_CALLOPTS, call_options); if (data != NULL) { add_message_xml(op_msg, F_STONITH_CALLDATA, data); } return op_msg; } static void stonith_destroy_op_callback(gpointer data) { stonith_callback_client_t *blob = data; if (blob->timer && blob->timer->ref > 0) { g_source_remove(blob->timer->ref); } free(blob->timer); free(blob); } static int stonith_api_signoff(stonith_t * stonith) { stonith_private_t *native = stonith->private; crm_debug("Signing out of the STONITH Service"); if (native->source != NULL) { /* Attached to mainloop */ mainloop_del_ipc_client(native->source); native->source = NULL; native->ipc = NULL; } else if(native->ipc) { /* Not attached to mainloop */ crm_ipc_t *ipc = native->ipc; native->ipc = NULL; crm_ipc_close(ipc); crm_ipc_destroy(ipc); } stonith->state = stonith_disconnected; return pcmk_ok; } static int stonith_api_signon(stonith_t * stonith, const char *name, int *stonith_fd) { int rc = pcmk_ok; stonith_private_t *native = stonith->private; static struct ipc_client_callbacks st_callbacks = { .dispatch = stonith_dispatch_internal, .destroy = stonith_connection_destroy }; crm_trace("Connecting command channel"); stonith->state = stonith_connected_command; if(stonith_fd) { /* No mainloop */ native->ipc = crm_ipc_new("stonith-ng", 0); if(native->ipc && crm_ipc_connect(native->ipc)) { *stonith_fd = crm_ipc_get_fd(native->ipc); } else if(native->ipc) { rc = -ENOTCONN; } } else { /* With mainloop */ native->source = mainloop_add_ipc_client("stonith-ng", G_PRIORITY_MEDIUM, 0, stonith, &st_callbacks); native->ipc = mainloop_get_ipc_client(native->source); } if (native->ipc == NULL) { crm_debug("Could not connect to the Stonith API"); rc = -ENOTCONN; } if (rc == pcmk_ok) { xmlNode *reply = NULL; xmlNode *hello = create_xml_node(NULL, "stonith_command"); crm_xml_add(hello, F_TYPE, T_STONITH_NG); crm_xml_add(hello, F_STONITH_OPERATION, CRM_OP_REGISTER); crm_xml_add(hello, F_STONITH_CLIENTNAME, name); rc = crm_ipc_send(native->ipc, hello, crm_ipc_client_response, -1, &reply); if(rc < 0) { crm_perror(LOG_DEBUG, "Couldn't complete registration with the fencing API: %d", rc); rc = -ECOMM; } else if(reply == NULL) { crm_err("Did not receive registration reply"); rc = -EPROTO; } else { const char *msg_type = crm_element_value(reply, F_STONITH_OPERATION); const char *tmp_ticket = crm_element_value(reply, F_STONITH_CLIENTID); if (safe_str_neq(msg_type, CRM_OP_REGISTER)) { crm_err("Invalid registration message: %s", msg_type); crm_log_xml_err(reply, "Bad reply"); rc = -EPROTO; } else if (tmp_ticket == NULL) { crm_err("No registration token provided"); crm_log_xml_err(reply, "Bad reply"); rc = -EPROTO; } else { crm_trace("Obtained registration token: %s", tmp_ticket); native->token = strdup(tmp_ticket); rc = pcmk_ok; } } free_xml(reply); free_xml(hello); } if (rc == pcmk_ok) { #if HAVE_MSGFROMIPC_TIMEOUT stonith->call_timeout = MAX_IPC_DELAY; #endif crm_debug("Connection to STONITH successful"); return pcmk_ok; } crm_debug("Connection to STONITH failed: %s", pcmk_strerror(rc)); stonith->cmds->disconnect(stonith); return rc; } static int stonith_set_notification(stonith_t * stonith, const char *callback, int enabled) { xmlNode *notify_msg = create_xml_node(NULL, __FUNCTION__); stonith_private_t *native = stonith->private; if (stonith->state != stonith_disconnected) { int rc; crm_xml_add(notify_msg, F_STONITH_OPERATION, T_STONITH_NOTIFY); if (enabled) { crm_xml_add(notify_msg, F_STONITH_NOTIFY_ACTIVATE, callback); } else { crm_xml_add(notify_msg, F_STONITH_NOTIFY_DEACTIVATE, callback); } rc = crm_ipc_send(native->ipc, notify_msg, crm_ipc_client_response, -1, NULL); if(rc < 0) { crm_perror(LOG_DEBUG, "Couldn't register for fencing notifications: %d", rc); rc = -ECOMM; } } free_xml(notify_msg); return pcmk_ok; } static int stonith_api_add_notification(stonith_t * stonith, const char *event, void (*callback) (stonith_t * stonith, stonith_event_t *e)) { GList *list_item = NULL; stonith_notify_client_t *new_client = NULL; stonith_private_t *private = NULL; private = stonith->private; crm_trace("Adding callback for %s events (%d)", event, g_list_length(private->notify_list)); new_client = calloc(1, sizeof(stonith_notify_client_t)); new_client->event = event; new_client->notify = callback; list_item = g_list_find_custom(private->notify_list, new_client, stonithlib_GCompareFunc); if (list_item != NULL) { crm_warn("Callback already present"); free(new_client); return -ENOTUNIQ; } else { private->notify_list = g_list_append(private->notify_list, new_client); stonith_set_notification(stonith, event, 1); crm_trace("Callback added (%d)", g_list_length(private->notify_list)); } return pcmk_ok; } static int stonith_api_del_notification(stonith_t * stonith, const char *event) { GList *list_item = NULL; stonith_notify_client_t *new_client = NULL; stonith_private_t *private = NULL; crm_debug("Removing callback for %s events", event); private = stonith->private; new_client = calloc(1, sizeof(stonith_notify_client_t)); new_client->event = event; new_client->notify = NULL; list_item = g_list_find_custom(private->notify_list, new_client, stonithlib_GCompareFunc); stonith_set_notification(stonith, event, 0); if (list_item != NULL) { stonith_notify_client_t *list_client = list_item->data; private->notify_list = g_list_remove(private->notify_list, list_client); free(list_client); crm_trace("Removed callback"); } else { crm_trace("Callback not present"); } free(new_client); return pcmk_ok; } static gboolean stonith_async_timeout_handler(gpointer data) { struct timer_rec_s *timer = data; crm_err("Async call %d timed out after %dms", timer->call_id, timer->timeout); stonith_perform_callback(timer->stonith, NULL, timer->call_id, -ETIME); /* Always return TRUE, never remove the handler * We do that in stonith_del_callback() */ return TRUE; } static void set_callback_timeout(stonith_callback_client_t *callback, stonith_t *stonith, int call_id, int timeout) { struct timer_rec_s *async_timer = callback->timer; if (timeout <= 0) { return; } if (!async_timer) { async_timer = calloc(1, sizeof(struct timer_rec_s)); callback->timer = async_timer; } async_timer->stonith = stonith; async_timer->call_id = call_id; /* Allow a fair bit of grace to allow the server to tell us of a timeout * This is only a fallback */ async_timer->timeout = (timeout + 60) * 1000; if (async_timer->ref) { g_source_remove(async_timer->ref); } async_timer->ref = g_timeout_add(async_timer->timeout, stonith_async_timeout_handler, async_timer); } static void update_callback_timeout(int call_id, int timeout, stonith_t *st) { stonith_callback_client_t *callback = NULL; stonith_private_t *private = st->private; callback = g_hash_table_lookup(private->stonith_op_callback_table, GINT_TO_POINTER(call_id)); if (!callback || !callback->allow_timeout_updates) { return; } set_callback_timeout(callback, st, call_id, timeout); } static void invoke_callback(stonith_t *st, int call_id, int rc, void *userdata, void (*callback) (stonith_t * st, stonith_callback_data_t *data)) { stonith_callback_data_t data = { 0, }; data.call_id = call_id; data.rc = rc; data.userdata = userdata; callback(st, &data); } static int stonith_api_add_callback(stonith_t * stonith, int call_id, int timeout, int options, void *user_data, const char *callback_name, void (*callback) (stonith_t * st, stonith_callback_data_t *data)) { stonith_callback_client_t *blob = NULL; stonith_private_t *private = NULL; CRM_CHECK(stonith != NULL, return -EINVAL); CRM_CHECK(stonith->private != NULL, return -EINVAL); private = stonith->private; if (call_id == 0) { private->op_callback = callback; } else if (call_id < 0) { if (!(options & st_opt_report_only_success)) { crm_trace("Call failed, calling %s: %s", callback_name, pcmk_strerror(call_id)); invoke_callback(stonith, call_id, call_id, user_data, callback); } else { crm_warn("STONITH call failed: %s", pcmk_strerror(call_id)); } return FALSE; } blob = calloc(1, sizeof(stonith_callback_client_t)); blob->id = callback_name; blob->only_success = (options & st_opt_report_only_success) ? TRUE : FALSE; blob->user_data = user_data; blob->callback = callback; blob->allow_timeout_updates = (options & st_opt_timeout_updates) ? TRUE : FALSE; if (timeout > 0) { set_callback_timeout(blob, stonith, call_id, timeout); } g_hash_table_insert(private->stonith_op_callback_table, GINT_TO_POINTER(call_id), blob); crm_trace("Added callback to %s for call %d", callback_name, call_id); return TRUE; } static int stonith_api_del_callback(stonith_t * stonith, int call_id, bool all_callbacks) { stonith_private_t *private = stonith->private; if (all_callbacks) { private->op_callback = NULL; g_hash_table_destroy(private->stonith_op_callback_table); private->stonith_op_callback_table = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, stonith_destroy_op_callback); } else if (call_id == 0) { private->op_callback = NULL; } else { g_hash_table_remove(private->stonith_op_callback_table, GINT_TO_POINTER(call_id)); } return pcmk_ok; } static void stonith_dump_pending_op(gpointer key, gpointer value, gpointer user_data) { int call = GPOINTER_TO_INT(key); stonith_callback_client_t *blob = value; crm_debug("Call %d (%s): pending", call, crm_str(blob->id)); } void stonith_dump_pending_callbacks(stonith_t * stonith) { stonith_private_t *private = stonith->private; if (private->stonith_op_callback_table == NULL) { return; } return g_hash_table_foreach(private->stonith_op_callback_table, stonith_dump_pending_op, NULL); } void stonith_perform_callback(stonith_t * stonith, xmlNode * msg, int call_id, int rc) { stonith_private_t *private = NULL; stonith_callback_client_t *blob = NULL; stonith_callback_client_t local_blob; CRM_CHECK(stonith != NULL, return); CRM_CHECK(stonith->private != NULL, return); private = stonith->private; local_blob.id = NULL; local_blob.callback = NULL; local_blob.user_data = NULL; local_blob.only_success = FALSE; if (msg != NULL) { crm_element_value_int(msg, F_STONITH_RC, &rc); crm_element_value_int(msg, F_STONITH_CALLID, &call_id); } CRM_CHECK(call_id > 0, crm_log_xml_err(msg, "Bad result")); blob = g_hash_table_lookup(private->stonith_op_callback_table, GINT_TO_POINTER(call_id)); if (blob != NULL) { local_blob = *blob; blob = NULL; stonith_api_del_callback(stonith, call_id, FALSE); } else { crm_trace("No callback found for call %d", call_id); local_blob.callback = NULL; } if (local_blob.callback != NULL && (rc == pcmk_ok || local_blob.only_success == FALSE)) { crm_trace("Invoking callback %s for call %d", crm_str(local_blob.id), call_id); invoke_callback(stonith, call_id, rc, local_blob.user_data, local_blob.callback); } else if (private->op_callback == NULL && rc != pcmk_ok) { crm_warn("STONITH command failed: %s", pcmk_strerror(rc)); crm_log_xml_debug(msg, "Failed STONITH Update"); } if (private->op_callback != NULL) { crm_trace("Invoking global callback for call %d", call_id); invoke_callback(stonith, call_id, rc, NULL, private->op_callback); } crm_trace("OP callback activated."); } /* */ static stonith_event_t * xml_to_event(xmlNode *msg) { stonith_event_t *event = calloc(1, sizeof(stonith_event_t)); const char *ntype = crm_element_value(msg, F_SUBTYPE); char *data_addr = g_strdup_printf("//%s", ntype); xmlNode *data = get_xpath_object(data_addr, msg, LOG_DEBUG); crm_log_xml_trace(msg, "stonith_notify"); crm_element_value_int(msg, F_STONITH_RC, &(event->result)); if(safe_str_eq(ntype, T_STONITH_NOTIFY_FENCE)) { event->operation = crm_element_value_copy(msg, F_STONITH_OPERATION); if(data) { event->origin = crm_element_value_copy(data, F_STONITH_ORIGIN); + event->action = crm_element_value_copy(data, F_STONITH_ACTION); event->target = crm_element_value_copy(data, F_STONITH_TARGET); event->executioner = crm_element_value_copy(data, F_STONITH_DELEGATE); event->id = crm_element_value_copy(data, F_STONITH_REMOTE); event->client_origin = crm_element_value_copy(data, F_STONITH_CLIENTNAME); } else { crm_err("No data for %s event", ntype); crm_log_xml_notice(msg, "BadEvent"); } } g_free(data_addr); return event; } static void event_free(stonith_event_t *event) { free(event->id); free(event->type); free(event->message); free(event->operation); free(event->origin); + free(event->action); free(event->target); free(event->executioner); free(event->device); free(event->client_origin); free(event); } static void stonith_send_notification(gpointer data, gpointer user_data) { struct notify_blob_s *blob = user_data; stonith_notify_client_t *entry = data; stonith_event_t *st_event = NULL; const char *event = NULL; if (blob->xml == NULL) { crm_warn("Skipping callback - NULL message"); return; } event = crm_element_value(blob->xml, F_SUBTYPE); if (entry == NULL) { crm_warn("Skipping callback - NULL callback client"); return; } else if (entry->notify == NULL) { crm_warn("Skipping callback - NULL callback"); return; } else if (safe_str_neq(entry->event, event)) { crm_trace("Skipping callback - event mismatch %p/%s vs. %s", entry, entry->event, event); return; } st_event = xml_to_event(blob->xml); crm_trace("Invoking callback for %p/%s event...", entry, event); entry->notify(blob->stonith, st_event); crm_trace("Callback invoked..."); event_free(st_event); } int stonith_send_command(stonith_t * stonith, const char *op, xmlNode * data, xmlNode ** output_data, int call_options, int timeout) { int rc = 0; int reply_id = -1; enum crm_ipc_flags ipc_flags = crm_ipc_client_none; xmlNode *op_msg = NULL; xmlNode *op_reply = NULL; stonith_private_t *native = stonith->private; if (stonith->state == stonith_disconnected) { return -ENOTCONN; } if (output_data != NULL) { *output_data = NULL; } if (op == NULL) { crm_err("No operation specified"); return -EINVAL; } if (call_options & st_opt_sync_call) { ipc_flags |= crm_ipc_client_response; } stonith->call_id++; /* prevent call_id from being negative (or zero) and conflicting * with the stonith_errors enum * use 2 because we use it as (stonith->call_id - 1) below */ if (stonith->call_id < 1) { stonith->call_id = 1; } CRM_CHECK(native->token != NULL,;); op_msg = stonith_create_op(stonith->call_id, native->token, op, data, call_options); if (op_msg == NULL) { return -EINVAL; } crm_xml_add_int(op_msg, F_STONITH_TIMEOUT, timeout); crm_trace("Sending %s message to STONITH service, Timeout: %ds", op, timeout); rc = crm_ipc_send(native->ipc, op_msg, ipc_flags, 1000*(timeout + 60), &op_reply); free_xml(op_msg); if(rc < 0) { crm_perror(LOG_ERR, "Couldn't perform %s operation (timeout=%ds): %d", op, timeout, rc); rc = -ECOMM; goto done; } crm_log_xml_trace(op_reply, "Reply"); if (!(call_options & st_opt_sync_call)) { crm_trace("Async call %d, returning", stonith->call_id); CRM_CHECK(stonith->call_id != 0, return -EPROTO); free_xml(op_reply); return stonith->call_id; } rc = pcmk_ok; crm_element_value_int(op_reply, F_STONITH_CALLID, &reply_id); if (reply_id == stonith->call_id) { crm_trace("Syncronous reply %d received", reply_id); if (crm_element_value_int(op_reply, F_STONITH_RC, &rc) != 0) { rc = -ENOMSG; } if ((call_options & st_opt_discard_reply) || output_data == NULL) { crm_trace("Discarding reply"); } else { *output_data = op_reply; op_reply = NULL; /* Prevent subsequent free */ } } else if (reply_id <= 0) { crm_err("Recieved bad reply: No id set"); crm_log_xml_err(op_reply, "Bad reply"); free_xml(op_reply); rc = -ENOMSG; } else { crm_err("Recieved bad reply: %d (wanted %d)", reply_id, stonith->call_id); crm_log_xml_err(op_reply, "Old reply"); free_xml(op_reply); rc = -ENOMSG; } done: if (crm_ipc_connected(native->ipc) == FALSE) { crm_err("STONITH disconnected"); stonith->state = stonith_disconnected; } free_xml(op_reply); return rc; } /* Not used with mainloop */ bool stonith_dispatch(stonith_t * st) { gboolean stay_connected = TRUE; stonith_private_t *private = NULL; CRM_ASSERT(st != NULL); private = st->private; while(crm_ipc_ready(private->ipc)) { if(crm_ipc_read(private->ipc) > 0) { const char *msg = crm_ipc_buffer(private->ipc); stonith_dispatch_internal(msg, strlen(msg), st); } if(crm_ipc_connected(private->ipc) == FALSE) { crm_err("Connection closed"); stay_connected = FALSE; } } return stay_connected; } int stonith_dispatch_internal(const char *buffer, ssize_t length, gpointer userdata) { const char *type = NULL; struct notify_blob_s blob; stonith_t * st = userdata; stonith_private_t *private = NULL; CRM_ASSERT(st != NULL); private = st->private; blob.stonith = st; blob.xml = string2xml(buffer); if (blob.xml == NULL) { crm_warn("Received a NULL msg from STONITH service: %s.", buffer); return 0; } /* do callbacks */ type = crm_element_value(blob.xml, F_TYPE); crm_trace("Activating %s callbacks...", type); if (safe_str_eq(type, T_STONITH_NG)) { stonith_perform_callback(st, blob.xml, 0, 0); } else if (safe_str_eq(type, T_STONITH_NOTIFY)) { g_list_foreach(private->notify_list, stonith_send_notification, &blob); } else if (safe_str_eq(type, T_STONITH_TIMEOUT_VALUE)) { int call_id = 0; int timeout = 0; crm_element_value_int(blob.xml, F_STONITH_TIMEOUT, &timeout); crm_element_value_int(blob.xml, F_STONITH_CALLID, &call_id); update_callback_timeout(call_id, timeout, st); } else { crm_err("Unknown message type: %s", type); crm_log_xml_warn(blob.xml, "BadReply"); } free_xml(blob.xml); return 1; } static int stonith_api_free(stonith_t * stonith) { int rc = pcmk_ok; if (stonith->state != stonith_disconnected) { rc = stonith->cmds->disconnect(stonith); } if (stonith->state == stonith_disconnected) { stonith_private_t *private = stonith->private; g_hash_table_destroy(private->stonith_op_callback_table); free(private->token); free(stonith->private); free(stonith->cmds); free(stonith); } return rc; } void stonith_api_delete(stonith_t * stonith) { stonith_private_t *private = stonith->private; GList *list = private->notify_list; while (list != NULL) { stonith_notify_client_t *client = g_list_nth_data(list, 0); list = g_list_remove(list, client); free(client); } stonith->cmds->free(stonith); stonith = NULL; } stonith_t * stonith_api_new(void) { stonith_t *new_stonith = NULL; stonith_private_t *private = NULL; new_stonith = calloc(1, sizeof(stonith_t)); private = calloc(1, sizeof(stonith_private_t)); new_stonith->private = private; private->stonith_op_callback_table = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, stonith_destroy_op_callback); private->notify_list = NULL; new_stonith->call_id = 1; new_stonith->state = stonith_disconnected; new_stonith->cmds = calloc(1, sizeof(stonith_api_operations_t)); /* *INDENT-OFF* */ new_stonith->cmds->free = stonith_api_free; new_stonith->cmds->connect = stonith_api_signon; new_stonith->cmds->disconnect = stonith_api_signoff; new_stonith->cmds->list = stonith_api_list; new_stonith->cmds->monitor = stonith_api_monitor; new_stonith->cmds->status = stonith_api_status; new_stonith->cmds->fence = stonith_api_fence; new_stonith->cmds->confirm = stonith_api_confirm; new_stonith->cmds->history = stonith_api_history; new_stonith->cmds->list_agents = stonith_api_device_list; new_stonith->cmds->metadata = stonith_api_device_metadata; new_stonith->cmds->query = stonith_api_query; new_stonith->cmds->remove_device = stonith_api_remove_device; new_stonith->cmds->register_device = stonith_api_register_device; new_stonith->cmds->remove_level = stonith_api_remove_level; new_stonith->cmds->register_level = stonith_api_register_level; new_stonith->cmds->remove_callback = stonith_api_del_callback; new_stonith->cmds->register_callback = stonith_api_add_callback; new_stonith->cmds->remove_notification = stonith_api_del_notification; new_stonith->cmds->register_notification = stonith_api_add_notification; /* *INDENT-ON* */ return new_stonith; } stonith_key_value_t * stonith_key_value_add(stonith_key_value_t * head, const char *key, const char *value) { stonith_key_value_t *p, *end; p = calloc(1, sizeof(stonith_key_value_t)); if (key) { p->key = strdup(key); } if (value) { p->value = strdup(value); } end = head; while (end && end->next) { end = end->next; } if (end) { end->next = p; } else { head = p; } return head; } void stonith_key_value_freeall(stonith_key_value_t * head, int keys, int values) { stonith_key_value_t *p; while (head) { p = head->next; if (keys) { free(head->key); } if (values) { free(head->value); } free(head); head = p; } } int stonith_api_kick(int nodeid, const char *uname, int timeout, bool off) { char *name = NULL; const char *action = "reboot"; int rc = -EPROTO; stonith_t *st = NULL; enum stonith_call_options opts = st_opt_sync_call | st_opt_allow_suicide; st = stonith_api_new(); if (st) { rc = st->cmds->connect(st, "stonith-api", NULL); } if (uname != NULL) { name = strdup(uname); } else if (nodeid > 0) { opts |= st_opt_cs_nodeid; name = crm_itoa(nodeid); } if (off) { action = "off"; } if (rc == pcmk_ok) { rc = st->cmds->fence(st, opts, name, action, timeout); } if (st) { st->cmds->disconnect(st); stonith_api_delete(st); } free(name); return rc; } time_t stonith_api_time(int nodeid, const char *uname, bool in_progress) { int rc = 0; char *name = NULL; time_t when = 0; time_t progress = 0; stonith_t *st = NULL; stonith_history_t *history, *hp = NULL; enum stonith_call_options opts = st_opt_sync_call; st = stonith_api_new(); if (st) { rc = st->cmds->connect(st, "stonith-api", NULL); } if (uname != NULL) { name = strdup(uname); } else if (nodeid > 0) { opts |= st_opt_cs_nodeid; name = crm_itoa(nodeid); } if (st && rc == pcmk_ok) { st->cmds->history(st, st_opt_sync_call | st_opt_cs_nodeid, name, &history, 120); for (hp = history; hp; hp = hp->next) { if (in_progress) { if (hp->state != st_done && hp->state != st_failed) { progress = time(NULL); } } else if (hp->state == st_done) { when = hp->completed; } } } if (progress) { when = progress; } if (st) { st->cmds->disconnect(st); stonith_api_delete(st); } free(name); return when; }