diff --git a/crmd/lrm.c b/crmd/lrm.c index 6a351b2202..460894bcad 100644 --- a/crmd/lrm.c +++ b/crmd/lrm.c @@ -1,2076 +1,2076 @@ /* * 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 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define START_DELAY_THRESHOLD 5 * 60 * 1000 typedef struct resource_history_s { char *id; lrm_rsc_t rsc; lrm_op_t *last; lrm_op_t *failed; GList *recurring_op_list; } rsc_history_t; struct recurring_op_s { char *rsc_id; char *op_key; int call_id; int interval; gboolean remove; gboolean cancelled; }; struct pending_deletion_op_s { char *rsc; ha_msg_input_t *input; }; struct delete_event_s { int rc; const char *rsc; }; GHashTable *resource_history = NULL; GHashTable *pending_ops = NULL; GHashTable *deletion_ops = NULL; GCHSource *lrm_source = NULL; int num_lrm_register_fails = 0; int max_lrm_register_fails = 30; gboolean populate_history_cache(void); gboolean process_lrm_event(lrm_op_t *op); gboolean is_rsc_active(const char *rsc_id); gboolean build_active_RAs(xmlNode *rsc_list); static gboolean stop_recurring_actions(gpointer key, gpointer value, gpointer user_data); static int delete_rsc_status(const char *rsc_id, int call_options, const char *user_name); lrm_op_t *construct_op(xmlNode *rsc_op, const char *rsc_id, const char *operation); void do_lrm_rsc_op(lrm_rsc_t *rsc, const char *operation, xmlNode *msg, xmlNode *request); void send_direct_ack(const char *to_host, const char *to_sys, lrm_rsc_t *rsc, lrm_op_t* op, const char *rsc_id); void lrm_connection_destroy(gpointer user_data) { if(is_set(fsa_input_register, R_LRM_CONNECTED)) { crm_crit("LRM Connection failed"); register_fsa_input(C_FSA_INTERNAL, I_ERROR, NULL); clear_bit_inplace(fsa_input_register, R_LRM_CONNECTED); } else { crm_info("LRM Connection disconnected"); } lrm_source = NULL; } static void free_deletion_op(gpointer value) { struct pending_deletion_op_s *op = value; crm_free(op->rsc); delete_ha_msg_input(op->input); crm_free(op); } static void free_recurring_op(gpointer value) { struct recurring_op_s *op = (struct recurring_op_s*)value; crm_free(op->rsc_id); crm_free(op->op_key); crm_free(op); } static char *make_stop_id(const char *rsc, int call_id) { char *op_id = NULL; crm_malloc0(op_id, strlen(rsc) + 34); if(op_id != NULL) { snprintf(op_id, strlen(rsc) + 34, "%s:%d", rsc, call_id); } return op_id; } static void dup_attr(gpointer key, gpointer value, gpointer user_data) { g_hash_table_replace(user_data, crm_strdup(key), crm_strdup(value)); } static void history_cache_destroy(gpointer data) { rsc_history_t *entry = data; crm_free(entry->rsc.type); crm_free(entry->rsc.class); crm_free(entry->rsc.provider); free_lrm_op(entry->failed); free_lrm_op(entry->last); crm_free(entry->id); crm_free(entry); } static void update_history_cache(lrm_rsc_t *rsc, lrm_op_t *op) { int target_rc = 0; rsc_history_t *entry = NULL; #ifdef HAVE_LRM_OP_T_RSC_DELETED if(op->rsc_deleted) { crm_debug("Purged history for '%s' after %s", op->rsc_id, op->op_type); delete_rsc_status(op->rsc_id, cib_quorum_override, NULL); return; } #endif if(safe_str_eq(op->op_type, RSC_NOTIFY)) { return; } crm_debug("Appending %s op to history for '%s'", op->op_type, op->rsc_id); entry = g_hash_table_lookup(resource_history, op->rsc_id); if(entry == NULL && rsc) { crm_malloc0(entry, sizeof(rsc_history_t)); entry->id = crm_strdup(op->rsc_id); g_hash_table_insert(resource_history, entry->id, entry); entry->rsc.id = entry->id; entry->rsc.type = crm_strdup(rsc->type); entry->rsc.class = crm_strdup(rsc->class); if(rsc->provider) { entry->rsc.provider = crm_strdup(rsc->provider); } else { entry->rsc.provider = NULL; } } else if(entry == NULL) { crm_info("Resource %s no longer exists, not updating cache", op->rsc_id); return; } target_rc = rsc_op_expected_rc(op); if(op->op_status == LRM_OP_CANCELLED) { crm_trace("Skipping %s_%s_%d rc=%d, status=%d", op->rsc_id, op->op_type, op->interval, op->rc, op->op_status); } else if(did_rsc_op_fail(op, target_rc)) { if(entry->failed) { free_lrm_op(entry->failed); } entry->failed = copy_lrm_op(op); - } else { + } else if(op->interval == 0) { if(entry->last) { free_lrm_op(entry->last); } entry->last = copy_lrm_op(op); } if(op->interval > 0) { crm_trace("Adding recurring op: %s_%s_%d", op->rsc_id, op->op_type, op->interval); entry->recurring_op_list = g_list_prepend(entry->recurring_op_list, copy_lrm_op(op)); } else if(entry->recurring_op_list && safe_str_eq(op->op_type, RSC_STATUS) == FALSE) { GList *gIter = entry->recurring_op_list; crm_trace("Dropping %d recurring ops because of: %s_%s_%d", g_list_length(gIter), op->rsc_id, op->op_type, op->interval); for(; gIter != NULL; gIter = gIter->next) { free_lrm_op(gIter->data); } g_list_free(entry->recurring_op_list); entry->recurring_op_list = NULL; } } /* A_LRM_CONNECT */ void do_lrm_control(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t *msg_data) { if(fsa_lrm_conn == NULL) { register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); return; } if(action & A_LRM_DISCONNECT) { if(verify_stopped(cur_state, LOG_INFO) == FALSE) { crmd_fsa_stall(NULL); return; } if(is_set(fsa_input_register, R_LRM_CONNECTED)) { clear_bit_inplace(fsa_input_register, R_LRM_CONNECTED); fsa_lrm_conn->lrm_ops->signoff(fsa_lrm_conn); crm_info("Disconnected from the LRM"); } /* TODO: Clean up the hashtable */ } if(action & A_LRM_CONNECT) { int ret = HA_OK; deletion_ops = g_hash_table_new_full( crm_str_hash, g_str_equal, g_hash_destroy_str, free_deletion_op); pending_ops = g_hash_table_new_full( crm_str_hash, g_str_equal, g_hash_destroy_str, free_recurring_op); resource_history = g_hash_table_new_full( crm_str_hash, g_str_equal, NULL, history_cache_destroy); if(ret == HA_OK) { crm_debug("Connecting to the LRM"); ret = fsa_lrm_conn->lrm_ops->signon(fsa_lrm_conn, CRM_SYSTEM_CRMD); } if(ret != HA_OK) { if(++num_lrm_register_fails < max_lrm_register_fails) { crm_warn("Failed to sign on to the LRM %d" " (%d max) times", num_lrm_register_fails, max_lrm_register_fails); crm_timer_start(wait_timer); crmd_fsa_stall(NULL); return; } } if(ret == HA_OK) { crm_debug_4("LRM: set_lrm_callback..."); ret = fsa_lrm_conn->lrm_ops->set_lrm_callback(fsa_lrm_conn, lrm_op_callback); if(ret != HA_OK) { crm_err("Failed to set LRM callbacks"); } } if(ret != HA_OK) { crm_err("Failed to sign on to the LRM %d" " (max) times", num_lrm_register_fails); register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); return; } populate_history_cache(); /* TODO: create a destroy handler that causes * some recovery to happen */ lrm_source = G_main_add_IPC_Channel( G_PRIORITY_LOW, fsa_lrm_conn->lrm_ops->ipcchan(fsa_lrm_conn), FALSE, lrm_dispatch, fsa_lrm_conn, lrm_connection_destroy); set_bit_inplace(fsa_input_register, R_LRM_CONNECTED); crm_debug("LRM connection established"); } if(action & ~(A_LRM_CONNECT|A_LRM_DISCONNECT)) { crm_err("Unexpected action %s in %s", fsa_action2string(action), __FUNCTION__); } } static void ghash_print_pending(gpointer key, gpointer value, gpointer user_data) { const char *stop_id = key; int *log_level = user_data; struct recurring_op_s *pending = value; do_crm_log(*log_level, "Pending action: %s (%s)", stop_id, pending->op_key); } static void ghash_print_pending_for_rsc(gpointer key, gpointer value, gpointer user_data) { const char *stop_id = key; char *rsc = user_data; struct recurring_op_s *pending = value; if(safe_str_eq(rsc, pending->rsc_id)) { do_crm_log(LOG_NOTICE, "%sction %s (%s) incomplete at shutdown", pending->interval==0?"A":"Recurring a", stop_id, pending->op_key); } } static void ghash_count_pending(gpointer key, gpointer value, gpointer user_data) { int *counter = user_data; struct recurring_op_s *pending = value; if(pending->interval > 0) { /* Ignore recurring actions in the shutdown calculations */ return; } (*counter)++; } gboolean verify_stopped(enum crmd_fsa_state cur_state, int log_level) { int counter = 0; gboolean rc = TRUE; GHashTableIter gIter; rsc_history_t *entry = NULL; crm_debug("Checking for active resources before exit"); if(cur_state == S_TERMINATE) { log_level = LOG_ERR; } if(pending_ops) { if(is_set(fsa_input_register, R_LRM_CONNECTED)) { /* Only log/complain about non-recurring actions */ g_hash_table_foreach_remove(pending_ops, stop_recurring_actions, NULL); } g_hash_table_foreach(pending_ops, ghash_count_pending, &counter); } if(counter > 0) { rc = FALSE; do_crm_log(log_level, "%d pending LRM operations at shutdown%s", counter, cur_state == S_TERMINATE?"":"... waiting"); if(cur_state == S_TERMINATE || !is_set(fsa_input_register, R_SENT_RSC_STOP)) { g_hash_table_foreach( pending_ops, ghash_print_pending, &log_level); } goto bail; } if(resource_history == NULL) { goto bail; } g_hash_table_iter_init(&gIter, resource_history); while (g_hash_table_iter_next (&gIter, NULL, (void**)&entry)) { if(is_rsc_active(entry->id) == FALSE) { continue; } crm_err("Resource %s was active at shutdown." " You may ignore this error if it is unmanaged.", entry->id); g_hash_table_foreach( pending_ops, ghash_print_pending_for_rsc, entry->id); } bail: set_bit_inplace(fsa_input_register, R_SENT_RSC_STOP); if(cur_state == S_TERMINATE) { rc = TRUE; } return rc; } static char * get_rsc_metadata(const char *type, const char *class, const char *provider) { char *metadata = NULL; CRM_CHECK(type != NULL, return NULL); CRM_CHECK(class != NULL, return NULL); if(provider == NULL) { provider = "heartbeat"; } crm_debug_2("Retreiving metadata for %s::%s:%s", type, class, provider); metadata = fsa_lrm_conn->lrm_ops->get_rsc_type_metadata( fsa_lrm_conn, class, type, provider); if(metadata) { /* copy the metadata because the LRM likes using * g_alloc instead of cl_malloc */ char *m_copy = crm_strdup(metadata); g_free(metadata); metadata = m_copy; } else { crm_warn("No metadata found for %s::%s:%s", type, class, provider); } return metadata; } typedef struct reload_data_s { char *key; char *metadata; time_t last_query; gboolean can_reload; GListPtr restart_list; } reload_data_t; static void g_hash_destroy_reload(gpointer data) { reload_data_t *reload = data; crm_free(reload->key); crm_free(reload->metadata); slist_basic_destroy(reload->restart_list); crm_free(reload); } GHashTable *reload_hash = NULL; static GListPtr get_rsc_restart_list(lrm_rsc_t *rsc, lrm_op_t *op) { int len = 0; char *key = NULL; char *copy = NULL; const char *value = NULL; const char *provider = NULL; xmlNode *param = NULL; xmlNode *params = NULL; xmlNode *actions = NULL; xmlNode *metadata = NULL; time_t now = time(NULL); reload_data_t *reload = NULL; if(reload_hash == NULL) { reload_hash = g_hash_table_new_full( crm_str_hash, g_str_equal, NULL, g_hash_destroy_reload); } provider = rsc->provider; if(provider == NULL) { provider = "heartbeat"; } len = strlen(rsc->type) + strlen(rsc->class) + strlen(provider) + 4; crm_malloc(key, len); snprintf(key, len, "%s::%s:%s", rsc->type, rsc->class, provider); reload = g_hash_table_lookup(reload_hash, key); if(reload && ((now - 9) > reload->last_query) && safe_str_eq(op->op_type, RSC_START)) { reload = NULL; /* re-query */ } if(reload == NULL) { xmlNode *action = NULL; crm_malloc0(reload, sizeof(reload_data_t)); g_hash_table_replace(reload_hash, key, reload); reload->last_query = now; reload->key = key; key = NULL; reload->metadata = get_rsc_metadata(rsc->type, rsc->class, provider); metadata = string2xml(reload->metadata); if(metadata == NULL) { crm_err("Metadata for %s::%s:%s is not valid XML", rsc->provider, rsc->class, rsc->type); goto cleanup; } actions = find_xml_node(metadata, "actions", TRUE); for(action = __xml_first_child(actions); action != NULL; action = __xml_next(action)) { if(crm_str_eq((const char *)action->name, "action", TRUE)) { value = crm_element_value(action, "name"); if(safe_str_eq("reload", value)) { reload->can_reload = TRUE; break; } } } if(reload->can_reload == FALSE) { goto cleanup; } params = find_xml_node(metadata, "parameters", TRUE); for(param = __xml_first_child(params); param != NULL; param = __xml_next(param)) { if(crm_str_eq((const char *)param->name, "parameter", TRUE)) { value = crm_element_value(param, "unique"); if(crm_is_true(value)) { value = crm_element_value(param, "name"); if(value == NULL) { crm_err("%s: NULL param", key); continue; } crm_debug("Attr %s is not reloadable", value); copy = crm_strdup(value); CRM_CHECK(copy != NULL, continue); reload->restart_list = g_list_append(reload->restart_list, copy); } } } } cleanup: crm_free(key); free_xml(metadata); return reload?reload->restart_list:NULL; } static void append_restart_list(lrm_rsc_t *rsc, lrm_op_t *op, xmlNode *update, const char *version) { int len = 0; char *list = NULL; char *digest = NULL; const char *value = NULL; gboolean non_empty = FALSE; xmlNode *restart = NULL; GListPtr restart_list = NULL; GListPtr lpc = NULL; if(op->interval > 0) { /* monitors are not reloadable */ return; } else if(op->params == NULL) { crm_debug("%s has no parameters", ID(update)); return; } else if(rsc == NULL) { return; } else if(crm_str_eq(CRMD_ACTION_START, op->op_type, TRUE) == FALSE) { /* only starts are potentially reloadable */ return; } else if(compare_version("1.0.8", version) > 0) { /* Caller version does not support reloads */ return; } restart_list = get_rsc_restart_list(rsc, op); if(restart_list == NULL) { /* Resource does not support reloads */ return; } restart = create_xml_node(NULL, XML_TAG_PARAMS); for(lpc = restart_list; lpc != NULL; lpc = lpc->next) { const char *param = (const char*)lpc->data; int start = len; CRM_CHECK(param != NULL, continue); value = g_hash_table_lookup(op->params, param); if(value != NULL) { non_empty = TRUE; crm_xml_add(restart, param, value); } len += strlen(param) + 2; crm_realloc(list, len+1); sprintf(list+start, " %s ", param); } digest = calculate_operation_digest(restart, version); crm_xml_add(update, XML_LRM_ATTR_OP_RESTART, list); crm_xml_add(update, XML_LRM_ATTR_RESTART_DIGEST, digest); #if 0 crm_debug("%s: %s, %s", rsc->id, digest, list); if(non_empty) { crm_log_xml_debug(restart, "restart digest source"); } #endif free_xml(restart); crm_free(digest); crm_free(list); } static gboolean build_operation_update( xmlNode *parent, lrm_rsc_t *rsc, lrm_op_t *op, const char *src) { int target_rc = 0; xmlNode *xml_op = NULL; const char *caller_version = CRM_FEATURE_SET; if(op == NULL) { return FALSE; } else if(AM_I_DC) { } else if(fsa_our_dc_version != NULL) { caller_version = fsa_our_dc_version; } else if(op->params == NULL) { caller_version = fsa_our_dc_version; } else { /* there is a small risk in formerly mixed clusters that * it will be sub-optimal. * however with our upgrade policy, the update we send * should still be completely supported anyway */ caller_version = g_hash_table_lookup( op->params, XML_ATTR_CRM_VERSION); crm_warn("Falling back to operation originator version: %s", caller_version); } target_rc = rsc_op_expected_rc(op); xml_op = create_operation_update(parent, op, caller_version, target_rc, src, LOG_DEBUG); if(xml_op) { append_restart_list(rsc, op, xml_op, caller_version); } return TRUE; } gboolean is_rsc_active(const char *rsc_id) { rsc_history_t *entry = NULL; crm_debug_3("Processing lrm_rsc_t entry %s", rsc_id); entry = g_hash_table_lookup(resource_history, rsc_id); if(entry == NULL || entry->last == NULL) { return FALSE; } if(entry->last->rc == EXECRA_OK && safe_str_eq(entry->last->op_type, CRMD_ACTION_STOP)) { return FALSE; } else if(entry->last->rc == EXECRA_OK && safe_str_eq(entry->last->op_type, CRMD_ACTION_MIGRATE)) { /* a stricter check is too complex... * leave that to the PE */ return FALSE; } else if(entry->last->rc == EXECRA_NOT_RUNNING) { return FALSE; } return TRUE; } gboolean build_active_RAs(xmlNode *rsc_list) { GHashTableIter iter; rsc_history_t *entry = NULL; g_hash_table_iter_init(&iter, resource_history); while (g_hash_table_iter_next (&iter, NULL, (void**)&entry)) { GList *gIter = NULL; xmlNode *xml_rsc = create_xml_node(rsc_list, XML_LRM_TAG_RESOURCE); crm_xml_add(xml_rsc, XML_ATTR_ID, entry->id); crm_xml_add(xml_rsc, XML_ATTR_TYPE, entry->rsc.type); crm_xml_add(xml_rsc, XML_AGENT_ATTR_CLASS, entry->rsc.class); crm_xml_add(xml_rsc, XML_AGENT_ATTR_PROVIDER, entry->rsc.provider); build_operation_update(xml_rsc, &(entry->rsc), entry->last, __FUNCTION__); build_operation_update(xml_rsc, &(entry->rsc), entry->failed, __FUNCTION__); for(gIter = entry->recurring_op_list; gIter != NULL; gIter = gIter->next) { build_operation_update(xml_rsc, &(entry->rsc), gIter->data, __FUNCTION__); } } return FALSE; } gboolean populate_history_cache(void) { GListPtr gIter = NULL; GListPtr gIter2 = NULL; GList *op_list = NULL; GList *rsc_list = NULL; state_flag_t cur_state = 0; rsc_list = fsa_lrm_conn->lrm_ops->get_all_rscs(fsa_lrm_conn); for(gIter = rsc_list; gIter != NULL; gIter = gIter->next) { char *rid = (char*)gIter->data; int max_call_id = -1; lrm_rsc_t *rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, rid); if(rsc == NULL) { crm_err("NULL resource returned from the LRM: %s", rid); continue; } op_list = rsc->ops->get_cur_state(rsc, &cur_state); for(gIter2 = op_list; gIter2 != NULL; gIter2 = gIter2->next) { lrm_op_t *op = (lrm_op_t*)gIter2->data; if(max_call_id < op->call_id) { update_history_cache(rsc, op); } else if(max_call_id > op->call_id) { crm_err("Bad call_id in list=%d. Previous call_id=%d", op->call_id, max_call_id); } else { crm_warn("lrm->get_cur_state() returned" " duplicate entries for call_id=%d", op->call_id); } max_call_id = op->call_id; lrm_free_op(op); } g_list_free(op_list); lrm_free_rsc(rsc); free(rid); } g_list_free(rsc_list); return TRUE; } xmlNode* do_lrm_query(gboolean is_replace) { gboolean shut_down = FALSE; xmlNode *xml_result= NULL; xmlNode *xml_state = NULL; xmlNode *xml_data = NULL; xmlNode *rsc_list = NULL; const char *exp_state = CRMD_STATE_ACTIVE; if(is_set(fsa_input_register, R_SHUTDOWN)) { exp_state = CRMD_STATE_INACTIVE; shut_down = TRUE; } xml_state = create_node_state( fsa_our_uname, ACTIVESTATUS, XML_BOOLEAN_TRUE, ONLINESTATUS, CRMD_JOINSTATE_MEMBER, exp_state, !shut_down, __FUNCTION__); xml_data = create_xml_node(xml_state, XML_CIB_TAG_LRM); crm_xml_add(xml_data, XML_ATTR_ID, fsa_our_uuid); rsc_list = create_xml_node(xml_data, XML_LRM_TAG_RESOURCES); /* Build a list of active (not always running) resources */ build_active_RAs(rsc_list); xml_result = create_cib_fragment(xml_state, XML_CIB_TAG_STATUS); crm_log_xml_debug_3(xml_state, "Current state of the LRM"); free_xml(xml_state); return xml_result; } static void notify_deleted(ha_msg_input_t *input, const char *rsc_id, int rc) { lrm_op_t* op = NULL; const char *from_sys = crm_element_value(input->msg, F_CRM_SYS_FROM); const char *from_host = crm_element_value(input->msg, F_CRM_HOST_FROM); crm_info("Notifying %s on %s that %s was%s deleted", from_sys, from_host, rsc_id, rc==HA_OK?"":" not"); op = construct_op(input->xml, rsc_id, CRMD_ACTION_DELETE); CRM_ASSERT(op != NULL); if(rc == HA_OK) { op->op_status = LRM_OP_DONE; op->rc = EXECRA_OK; } else { op->op_status = LRM_OP_ERROR; op->rc = EXECRA_UNKNOWN_ERROR; } send_direct_ack(from_host, from_sys, NULL, op, rsc_id); free_lrm_op(op); if(safe_str_neq(from_sys, CRM_SYSTEM_TENGINE)) { /* this isn't expected - trigger a new transition */ time_t now = time(NULL); char *now_s = crm_itoa(now); crm_debug("Triggering a refresh after %s deleted %s from the LRM", from_sys, rsc_id); update_attr(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG, NULL, NULL, NULL, NULL, "last-lrm-refresh", now_s, FALSE); crm_free(now_s); } } static gboolean lrm_remove_deleted_rsc( gpointer key, gpointer value, gpointer user_data) { struct delete_event_s *event = user_data; struct pending_deletion_op_s *op = value; if(safe_str_eq(event->rsc, op->rsc)) { notify_deleted(op->input, event->rsc, event->rc); return TRUE; } return FALSE; } static gboolean lrm_remove_deleted_op( gpointer key, gpointer value, gpointer user_data) { const char *rsc = user_data; struct recurring_op_s *pending = value; if(safe_str_eq(rsc, pending->rsc_id)) { crm_info("Removing op %s:%d for deleted resource %s", pending->op_key, pending->call_id, rsc); return TRUE; } return FALSE; } /* * Remove the rsc from the CIB * * Avoids refreshing the entire LRM section of this host */ #define rsc_template "//"XML_CIB_TAG_STATE"[@uname='%s']//"XML_LRM_TAG_RESOURCE"[@id='%s']" static int delete_rsc_status(const char *rsc_id, int call_options, const char *user_name) { char *rsc_xpath = NULL; int max = 0; int rc = cib_ok; CRM_CHECK(rsc_id != NULL, return cib_id_check); max = strlen(rsc_template) + strlen(rsc_id) + strlen(fsa_our_uname) + 1; crm_malloc0(rsc_xpath, max); snprintf(rsc_xpath, max, rsc_template, fsa_our_uname, rsc_id); rc = fsa_cib_conn->cmds->delegated_variant_op( fsa_cib_conn, CIB_OP_DELETE, NULL, rsc_xpath, NULL, NULL, call_options|cib_xpath, user_name); crm_free(rsc_xpath); return rc; } static void delete_rsc_entry(ha_msg_input_t *input, const char *rsc_id, int rc, const char *user_name) { struct delete_event_s event; CRM_CHECK(rsc_id != NULL, return); if(rc == HA_OK) { char *rsc_id_copy = crm_strdup(rsc_id); g_hash_table_remove(resource_history, rsc_id); crm_debug("sync: Sending delete op for %s", rsc_id); delete_rsc_status(rsc_id, cib_quorum_override, user_name); g_hash_table_foreach_remove(pending_ops, lrm_remove_deleted_op, rsc_id_copy); crm_free(rsc_id_copy); } if(input) { notify_deleted(input, rsc_id, rc); } event.rc = rc; event.rsc = rsc_id; g_hash_table_foreach_remove(deletion_ops, lrm_remove_deleted_rsc, &event); } /* * Remove the op from the CIB * * Avoids refreshing the entire LRM section of this host */ #define op_template "//"XML_CIB_TAG_STATE"[@uname='%s']//"XML_LRM_TAG_RESOURCE"[@id='%s']/"XML_LRM_TAG_RSC_OP"[@id='%s']" #define op_call_template "//"XML_CIB_TAG_STATE"[@uname='%s']//"XML_LRM_TAG_RESOURCE"[@id='%s']/"XML_LRM_TAG_RSC_OP"[@id='%s' and @"XML_LRM_ATTR_CALLID"='%d']" static void delete_op_entry(lrm_op_t *op, const char *rsc_id, const char *key, int call_id) { xmlNode *xml_top = NULL; if(op != NULL) { xml_top = create_xml_node(NULL, XML_LRM_TAG_RSC_OP); crm_xml_add_int(xml_top, XML_LRM_ATTR_CALLID, op->call_id); crm_xml_add(xml_top, XML_ATTR_TRANSITION_KEY, op->user_data); crm_debug("async: Sending delete op for %s_%s_%d (call=%d)", op->rsc_id, op->op_type, op->interval, op->call_id); fsa_cib_conn->cmds->delete( fsa_cib_conn, XML_CIB_TAG_STATUS, xml_top, cib_quorum_override); } else if (rsc_id != NULL && key != NULL) { int max = 0; char *op_xpath = NULL; if(call_id > 0) { max = strlen(op_call_template) + strlen(rsc_id) + strlen(fsa_our_uname) + strlen(key) + 10; crm_malloc0(op_xpath, max); snprintf(op_xpath, max, op_call_template, fsa_our_uname, rsc_id, key, call_id); } else { max = strlen(op_template) + strlen(rsc_id) + strlen(fsa_our_uname) + strlen(key) + 1; crm_malloc0(op_xpath, max); snprintf(op_xpath, max, op_template, fsa_our_uname, rsc_id, key); } crm_debug("sync: Sending delete op for %s (call=%d)", rsc_id, call_id); fsa_cib_conn->cmds->delete( fsa_cib_conn, op_xpath, NULL, cib_quorum_override|cib_xpath); crm_free(op_xpath); } else { crm_err("Not enough information to delete op entry: rsc=%p key=%p", rsc_id, key); return; } crm_log_xml_debug_2(xml_top, "op:cancel"); free_xml(xml_top); } static gboolean cancel_op(lrm_rsc_t *rsc, const char *key, int op, gboolean remove) { int rc = HA_OK; struct recurring_op_s *pending = NULL; CRM_CHECK(op != 0, return FALSE); CRM_CHECK(rsc != NULL, return FALSE); if(key == NULL) { key = make_stop_id(rsc->id, op); } pending = g_hash_table_lookup(pending_ops, key); if(pending) { if(remove && pending->remove == FALSE) { pending->remove = TRUE; crm_debug("Scheduling %s for removal", key); } if(pending->cancelled) { crm_debug("Operation %s already cancelled", key); return TRUE; } pending->cancelled = TRUE; } else { crm_info("No pending op found for %s", key); } crm_debug("Cancelling op %d for %s (%s)", op, rsc->id, key); rc = rsc->ops->cancel_op(rsc, op); if(rc == HA_OK) { crm_debug("Op %d for %s (%s): cancelled", op, rsc->id, key); #ifdef HAVE_LRM_OP_T_RSC_DELETED } else if(rc == HA_RSCBUSY) { crm_debug("Op %d for %s (%s): cancelation pending", op, rsc->id, key); #endif } else { crm_debug("Op %d for %s (%s): Nothing to cancel", op, rsc->id, key); /* The caller needs to make sure the entry is * removed from the pending_ops list * * Usually by returning TRUE inside the worker function * supplied to g_hash_table_foreach_remove() * * Not removing the entry from pending_ops will block * the node from shutting down */ return FALSE; } return TRUE; } struct cancel_data { gboolean done; gboolean remove; const char *key; lrm_rsc_t *rsc; }; static gboolean cancel_action_by_key(gpointer key, gpointer value, gpointer user_data) { struct cancel_data *data = user_data; struct recurring_op_s *op = (struct recurring_op_s*)value; if(safe_str_eq(op->op_key, data->key)) { data->done = TRUE; if (cancel_op(data->rsc, key, op->call_id, data->remove) == FALSE) { return TRUE; } } return FALSE; } static gboolean cancel_op_key(lrm_rsc_t *rsc, const char *key, gboolean remove) { struct cancel_data data; CRM_CHECK(rsc != NULL, return FALSE); CRM_CHECK(key != NULL, return FALSE); data.key = key; data.rsc = rsc; data.done = FALSE; data.remove = remove; g_hash_table_foreach_remove(pending_ops, cancel_action_by_key, &data); return data.done; } static lrm_rsc_t * get_lrm_resource(xmlNode *resource, xmlNode *op_msg, gboolean do_create) { char rid[RID_LEN]; lrm_rsc_t *rsc = NULL; const char *short_id = ID(resource); const char *long_id = crm_element_value(resource, XML_ATTR_ID_LONG); crm_debug_2("Retrieving %s from the LRM.", short_id); CRM_CHECK(short_id != NULL, return NULL); if(rsc == NULL) { /* check if its already there (short name) */ strncpy(rid, short_id, RID_LEN); rid[RID_LEN-1] = 0; rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, rid); } if(rsc == NULL && long_id != NULL) { /* try the long name instead */ strncpy(rid, long_id, RID_LEN); rid[RID_LEN-1] = 0; rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, rid); } if(rsc == NULL && do_create) { /* add it to the LRM */ const char *type = crm_element_value(resource, XML_ATTR_TYPE); const char *class = crm_element_value(resource, XML_AGENT_ATTR_CLASS); const char *provider = crm_element_value(resource, XML_AGENT_ATTR_PROVIDER); GHashTable *params = xml2list(op_msg); CRM_CHECK(class != NULL, return NULL); CRM_CHECK(type != NULL, return NULL); crm_debug_2("Adding rsc %s before operation", short_id); strncpy(rid, short_id, RID_LEN); rid[RID_LEN-1] = 0; if(g_hash_table_size(params) == 0) { crm_log_xml_warn(op_msg, "EmptyParams"); } if(params != NULL) { g_hash_table_remove(params, CRM_META"_op_target_rc"); } fsa_lrm_conn->lrm_ops->add_rsc( fsa_lrm_conn, rid, class, type, provider, params); rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, rid); g_hash_table_destroy(params); if(rsc == NULL) { fsa_data_t *msg_data = NULL; crm_err("Could not add resource %s to LRM", rid); register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL); } } return rsc; } static void delete_resource( const char *id, lrm_rsc_t *rsc, const char *sys, const char *host, const char *user, ha_msg_input_t *request) { int rc = HA_OK; crm_info("Removing resource %s for %s (%s) on %s", id, sys, user?user:"internal", host); if(rsc) { rc = fsa_lrm_conn->lrm_ops->delete_rsc(fsa_lrm_conn, id); } if(rc == HA_OK) { crm_trace("Resource '%s' deleted", id); #ifdef HAVE_LRM_OP_T_RSC_DELETED } else if(rc == HA_RSCBUSY) { crm_info("Deletion of resource '%s' pending", id); if(request) { struct pending_deletion_op_s *op = NULL; char *ref = crm_element_value_copy(request->msg, XML_ATTR_REFERENCE); crm_malloc0(op, sizeof(struct pending_deletion_op_s)); op->rsc = crm_strdup(rsc->id); op->input = copy_ha_msg_input(request); g_hash_table_insert(deletion_ops, ref, op); } return; #endif } else { crm_warn("Deletion of resource '%s' for %s (%s) on %s failed: %d", id, sys, user?user:"internal", host, rc); } delete_rsc_entry(request, id, rc, user); } /* A_LRM_INVOKE */ void do_lrm_invoke(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t *msg_data) { gboolean done = FALSE; gboolean create_rsc = TRUE; const char *crm_op = NULL; const char *from_sys = NULL; const char *from_host = NULL; const char *operation = NULL; ha_msg_input_t *input = fsa_typed_data(fsa_dt_ha_msg); const char *user_name = NULL; #if ENABLE_ACL user_name = crm_element_value(input->msg, F_CRM_USER); crm_debug_2("LRM command from user '%s'", user_name); #endif crm_op = crm_element_value(input->msg, F_CRM_TASK); from_sys = crm_element_value(input->msg, F_CRM_SYS_FROM); if(safe_str_neq(from_sys, CRM_SYSTEM_TENGINE)) { from_host = crm_element_value(input->msg, F_CRM_HOST_FROM); } crm_debug_2("LRM command from: %s", from_sys); if(safe_str_eq(crm_op, CRM_OP_LRM_DELETE)) { operation = CRMD_ACTION_DELETE; } else if(safe_str_eq(operation, CRM_OP_LRM_REFRESH)) { crm_op = CRM_OP_LRM_REFRESH; } else if(safe_str_eq(crm_op, CRM_OP_LRM_FAIL)) { #if HAVE_STRUCT_LRM_OPS_FAIL_RSC int rc = HA_OK; lrm_op_t* op = NULL; lrm_rsc_t *rsc = NULL; xmlNode *xml_rsc = find_xml_node( input->xml, XML_CIB_TAG_RESOURCE, TRUE); CRM_CHECK(xml_rsc != NULL, return); op = construct_op(input->xml, ID(xml_rsc), "fail"); op->op_status = LRM_OP_ERROR; op->rc = EXECRA_UNKNOWN_ERROR; CRM_ASSERT(op != NULL); #if ENABLE_ACL if(user_name && is_privileged(user_name) == FALSE) { crm_err("%s does not have permission to fail %s", user_name, ID(xml_rsc)); send_direct_ack(from_host, from_sys, NULL, op, ID(xml_rsc)); free_lrm_op(op); return; } #endif rsc = get_lrm_resource(xml_rsc, input->xml, create_rsc); if(rsc) { crm_info("Failing resource %s...", rsc->id); rc = fsa_lrm_conn->lrm_ops->fail_rsc(fsa_lrm_conn, rsc->id, 1, "do_lrm_invoke: Async failure"); if(rc != HA_OK) { crm_err("Could not initiate an asynchronous failure for %s (%d)", rsc->id, rc); } else { op->op_status = LRM_OP_DONE; op->rc = EXECRA_OK; } lrm_free_rsc(rsc); } else { crm_info("Cannot find/create resource in order to fail it..."); crm_log_xml_warn(input->msg, "bad input"); } send_direct_ack(from_host, from_sys, NULL, op, ID(xml_rsc)); free_lrm_op(op); return; #else crm_info("Failing resource..."); operation = "fail"; #endif } else if(input->xml != NULL) { operation = crm_element_value(input->xml, XML_LRM_ATTR_TASK); } if(safe_str_eq(crm_op, CRM_OP_LRM_REFRESH)) { enum cib_errors rc = cib_ok; xmlNode *fragment = do_lrm_query(TRUE); crm_info("Forcing a local LRM refresh"); fsa_cib_update(XML_CIB_TAG_STATUS, fragment, cib_quorum_override, rc, user_name); free_xml(fragment); } else if(safe_str_eq(crm_op, CRM_OP_LRM_QUERY)) { xmlNode *data = do_lrm_query(FALSE); xmlNode *reply = create_reply(input->msg, data); if(relay_message(reply, TRUE) == FALSE) { crm_err("Unable to route reply"); crm_log_xml(LOG_ERR, "reply", reply); } free_xml(reply); free_xml(data); } else if(safe_str_eq(operation, CRM_OP_PROBED)) { update_attrd(NULL, CRM_OP_PROBED, XML_BOOLEAN_TRUE, user_name); } else if(safe_str_eq(crm_op, CRM_OP_REPROBE)) { GHashTableIter gIter; rsc_history_t *entry = NULL; crm_notice("Forcing the status of all resources to be redetected"); g_hash_table_iter_init(&gIter, resource_history); while (g_hash_table_iter_next (&gIter, NULL, (void**)&entry)) { lrm_rsc_t *rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, entry->id); delete_resource(entry->id, rsc, from_sys, from_host, user_name, NULL); lrm_free_rsc(rsc); } /* Now delete the copy in the CIB */ erase_status_tag(fsa_our_uname, XML_CIB_TAG_LRM, cib_scope_local); /* And finally, _delete_ the value in attrd * Setting it to FALSE results in the PE sending us back here again */ update_attrd(NULL, CRM_OP_PROBED, NULL, user_name); } else if(operation != NULL) { lrm_rsc_t *rsc = NULL; xmlNode *params = NULL; xmlNode *xml_rsc = find_xml_node( input->xml, XML_CIB_TAG_RESOURCE, TRUE); CRM_CHECK(xml_rsc != NULL, return); /* only the first 16 chars are used by the LRM */ params = find_xml_node(input->xml, XML_TAG_ATTRS, TRUE); if(safe_str_eq(operation, CRMD_ACTION_DELETE)) { create_rsc = FALSE; } rsc = get_lrm_resource(xml_rsc, input->xml, create_rsc); if(rsc == NULL && create_rsc) { crm_err("Invalid resource definition"); crm_log_xml_warn(input->msg, "bad input"); } else if(rsc == NULL) { lrm_op_t* op = NULL; crm_notice("Not creating resource for a %s event: %s", operation, ID(input->xml)); delete_rsc_entry(input, ID(xml_rsc), HA_OK, user_name); op = construct_op(input->xml, ID(xml_rsc), operation); op->op_status = LRM_OP_DONE; op->rc = EXECRA_OK; CRM_ASSERT(op != NULL); send_direct_ack(from_host, from_sys, NULL, op, ID(xml_rsc)); free_lrm_op(op); } else if(safe_str_eq(operation, CRMD_ACTION_CANCEL)) { lrm_op_t* op = NULL; char *op_key = NULL; char *meta_key = NULL; int call = 0; const char *call_id = NULL; const char *op_task = NULL; const char *op_interval = NULL; CRM_CHECK(params != NULL, crm_log_xml_warn(input->xml, "Bad command"); return); meta_key = crm_meta_name(XML_LRM_ATTR_INTERVAL); op_interval = crm_element_value(params, meta_key); crm_free(meta_key); meta_key = crm_meta_name(XML_LRM_ATTR_TASK); op_task = crm_element_value(params, meta_key); crm_free(meta_key); meta_key = crm_meta_name(XML_LRM_ATTR_CALLID); call_id = crm_element_value(params, meta_key); crm_free(meta_key); CRM_CHECK(op_task != NULL, crm_log_xml_warn(input->xml, "Bad command"); return); CRM_CHECK(op_interval != NULL, crm_log_xml_warn(input->xml, "Bad command"); return); op = construct_op(input->xml, rsc->id, op_task); CRM_ASSERT(op != NULL); op_key = generate_op_key( rsc->id,op_task,crm_parse_int(op_interval,"0")); crm_debug("PE requested op %s (call=%s) be cancelled", op_key, call_id?call_id:"NA"); call = crm_parse_int(call_id, "0"); if(call == 0) { /* the normal case when the PE cancels a recurring op */ done = cancel_op_key(rsc, op_key, TRUE); } else { /* the normal case when the PE cancels an orphan op */ done = cancel_op(rsc, NULL, call, TRUE); } if(done == FALSE) { crm_debug("Nothing known about operation %d for %s", call, op_key); delete_op_entry(NULL, rsc->id, op_key, call); /* needed?? surely not otherwise the cancel_op_(_key) wouldn't * have failed in the first place */ g_hash_table_remove(pending_ops, op_key); } op->rc = EXECRA_OK; op->op_status = LRM_OP_DONE; send_direct_ack(from_host, from_sys, rsc, op, rsc->id); crm_free(op_key); free_lrm_op(op); } else if(safe_str_eq(operation, CRMD_ACTION_DELETE)) { int cib_rc = cib_ok; CRM_ASSERT(rsc != NULL); cib_rc = delete_rsc_status(rsc->id, cib_dryrun|cib_sync_call, user_name); if(cib_rc != cib_ok){ lrm_op_t* op = NULL; crm_err("Attempt of deleting resource status '%s' from CIB for %s (user=%s) on %s failed: (rc=%d) %s", rsc->id, from_sys, user_name?user_name:"unknown", from_host, cib_rc, cib_error2string(cib_rc)); op = construct_op(input->xml, rsc->id, operation); op->op_status = LRM_OP_ERROR; if (cib_rc == cib_permission_denied) { op->rc = EXECRA_INSUFFICIENT_PRIV; } else { op->rc = EXECRA_UNKNOWN_ERROR; } send_direct_ack(from_host, from_sys, NULL, op, rsc->id); free_lrm_op(op); return; } delete_resource(rsc->id, rsc, from_sys, from_host, user_name, input); } else if(rsc != NULL) { do_lrm_rsc_op(rsc, operation, input->xml, input->msg); } lrm_free_rsc(rsc); } else { crm_err("Operation was neither a lrm_query, nor a rsc op. %s", crm_str(crm_op)); register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); } } static void copy_notify_keys(gpointer key, gpointer value, gpointer user_data) { if(strstr(key, CRM_META"_notify_") != NULL) { g_hash_table_insert(user_data, strdup((const char *)key), strdup((const char *)value)); } } lrm_op_t * construct_op(xmlNode *rsc_op, const char *rsc_id, const char *operation) { lrm_op_t *op = NULL; const char *op_delay = NULL; const char *op_timeout = NULL; const char *op_interval = NULL; GHashTable *params = NULL; const char *transition = NULL; CRM_LOG_ASSERT(rsc_id != NULL); crm_malloc0(op, sizeof(lrm_op_t)); op->op_type = crm_strdup(operation); op->op_status = LRM_OP_PENDING; op->rc = -1; op->rsc_id = crm_strdup(rsc_id); op->interval = 0; op->timeout = 0; op->start_delay = 0; op->copyparams = 0; op->app_name = crm_strdup(CRM_SYSTEM_CRMD); if(rsc_op == NULL) { CRM_LOG_ASSERT(safe_str_eq(CRMD_ACTION_STOP, operation)); op->user_data = NULL; op->user_data_len = 0; /* the stop_all_resources() case * by definition there is no DC (or they'd be shutting * us down). * So we should put our version here. */ op->params = g_hash_table_new_full( crm_str_hash, g_str_equal, g_hash_destroy_str, g_hash_destroy_str); g_hash_table_insert(op->params, crm_strdup(XML_ATTR_CRM_VERSION), crm_strdup(CRM_FEATURE_SET)); crm_debug_2("Constructed %s op for %s", operation, rsc_id); return op; } params = xml2list(rsc_op); g_hash_table_remove(params, CRM_META"_op_target_rc"); op_delay = crm_meta_value(params, XML_OP_ATTR_START_DELAY); op_timeout = crm_meta_value(params, XML_ATTR_TIMEOUT); op_interval = crm_meta_value(params, XML_LRM_ATTR_INTERVAL); op->interval = crm_parse_int(op_interval, "0"); op->timeout = crm_parse_int(op_timeout, "0"); op->start_delay = crm_parse_int(op_delay, "0"); if(safe_str_neq(operation, RSC_STOP)) { op->params = params; } else { /* Create a blank parameter list so that we stop the resource * with the old attributes, not the new ones */ const char *version = g_hash_table_lookup(params, XML_ATTR_CRM_VERSION); op->params = g_hash_table_new_full( crm_str_hash, g_str_equal, g_hash_destroy_str, g_hash_destroy_str); if(version) { g_hash_table_insert(op->params, crm_strdup(XML_ATTR_CRM_VERSION), crm_strdup(version)); } g_hash_table_foreach(params, copy_notify_keys, op->params); g_hash_table_destroy(params); params = NULL; } /* sanity */ if(op->interval < 0) { op->interval = 0; } if(op->timeout <= 0) { op->timeout = op->interval; } if(op->start_delay < 0) { op->start_delay = 0; } transition = crm_element_value(rsc_op, XML_ATTR_TRANSITION_KEY); CRM_CHECK(transition != NULL, return op); op->user_data = crm_strdup(transition); op->user_data_len = 1+strlen(op->user_data); if(op->interval != 0) { if(safe_str_eq(operation, CRMD_ACTION_START) || safe_str_eq(operation, CRMD_ACTION_STOP)) { crm_err("Start and Stop actions cannot have an interval: %d", op->interval); op->interval = 0; } } /* reset the resource's parameters? */ if(op->interval == 0) { if(safe_str_eq(CRMD_ACTION_START, operation) || safe_str_eq(CRMD_ACTION_STATUS, operation)) { op->copyparams = 1; } } crm_debug_2("Constructed %s op for %s: interval=%d", operation, rsc_id, op->interval); return op; } void send_direct_ack(const char *to_host, const char *to_sys, lrm_rsc_t *rsc, lrm_op_t* op, const char *rsc_id) { xmlNode *reply = NULL; xmlNode *update, *iter; xmlNode *fragment; CRM_CHECK(op != NULL, return); if(op->rsc_id == NULL) { CRM_LOG_ASSERT(rsc_id != NULL); op->rsc_id = crm_strdup(rsc_id); } if(to_sys == NULL) { to_sys = CRM_SYSTEM_TENGINE; } update = create_node_state( fsa_our_uname, NULL, NULL, NULL, NULL, NULL, FALSE, __FUNCTION__); iter = create_xml_node(update, XML_CIB_TAG_LRM); crm_xml_add(iter, XML_ATTR_ID, fsa_our_uuid); iter = create_xml_node(iter, XML_LRM_TAG_RESOURCES); iter = create_xml_node(iter, XML_LRM_TAG_RESOURCE); crm_xml_add(iter, XML_ATTR_ID, op->rsc_id); build_operation_update(iter, rsc, op, __FUNCTION__); fragment = create_cib_fragment(update, XML_CIB_TAG_STATUS); reply = create_request(CRM_OP_INVOKE_LRM, fragment, to_host, to_sys, CRM_SYSTEM_LRMD, NULL); crm_log_xml_debug_2(update, "ACK Update"); crm_info("ACK'ing resource op %s_%s_%d from %s: %s", op->rsc_id, op->op_type, op->interval, op->user_data, crm_element_value(reply, XML_ATTR_REFERENCE)); if(relay_message(reply, TRUE) == FALSE) { crm_log_xml(LOG_ERR, "Unable to route reply", reply); } free_xml(fragment); free_xml(update); free_xml(reply); } static gboolean stop_recurring_action_by_rsc(gpointer key, gpointer value, gpointer user_data) { lrm_rsc_t *rsc = user_data; struct recurring_op_s *op = (struct recurring_op_s*)value; if(op->interval != 0 && safe_str_eq(op->rsc_id, rsc->id)) { if (cancel_op(rsc, key, op->call_id, FALSE) == FALSE) { return TRUE; } } return FALSE; } static gboolean stop_recurring_actions(gpointer key, gpointer value, gpointer user_data) { gboolean remove = FALSE; struct recurring_op_s *op = (struct recurring_op_s*)value; if(op->interval != 0) { lrm_rsc_t *rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, op->rsc_id); if(rsc) { remove = cancel_op(rsc, key, op->call_id, FALSE); lrm_free_rsc(rsc); } } return remove; } void do_lrm_rsc_op(lrm_rsc_t *rsc, const char *operation, xmlNode *msg, xmlNode *request) { int call_id = 0; char *op_id = NULL; lrm_op_t* op = NULL; fsa_data_t *msg_data = NULL; const char *transition = NULL; CRM_CHECK(rsc != NULL, return); if(msg != NULL) { transition = crm_element_value(msg, XML_ATTR_TRANSITION_KEY); if(transition == NULL) { crm_log_xml_err(msg, "Missing transition number"); } } op = construct_op(msg, rsc->id, operation); /* stop the monitor before stopping the resource */ if(crm_str_eq(operation, CRMD_ACTION_STOP, TRUE) || crm_str_eq(operation, CRMD_ACTION_DEMOTE, TRUE) || crm_str_eq(operation, CRMD_ACTION_PROMOTE, TRUE) || crm_str_eq(operation, CRMD_ACTION_MIGRATE, TRUE)) { g_hash_table_foreach_remove(pending_ops, stop_recurring_action_by_rsc, rsc); } /* now do the op */ crm_info("Performing key=%s op=%s_%s_%d )", transition, rsc->id, operation, op->interval); if(fsa_state != S_NOT_DC && fsa_state != S_POLICY_ENGINE && fsa_state != S_TRANSITION_ENGINE) { if(safe_str_neq(operation, "fail") && safe_str_neq(operation, CRMD_ACTION_STOP)) { crm_info("Discarding attempt to perform action %s on %s" " in state %s", operation, rsc->id, fsa_state2string(fsa_state)); op->rc = 99; op->op_status = LRM_OP_ERROR; send_direct_ack(NULL, NULL, rsc, op, rsc->id); free_lrm_op(op); crm_free(op_id); return; } } op_id = generate_op_key(rsc->id, op->op_type, op->interval); if(op->interval > 0) { /* cancel it so we can then restart it without conflict */ cancel_op_key(rsc, op_id, FALSE); op->target_rc = CHANGED; } else { op->target_rc = EVERYTIME; } call_id = rsc->ops->perform_op(rsc, op); if(call_id <= 0) { crm_err("Operation %s on %s failed: %d", operation, rsc->id, call_id); register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL); } else { /* record all operations so we can wait * for them to complete during shutdown */ char *call_id_s = make_stop_id(rsc->id, call_id); struct recurring_op_s *pending = NULL; crm_malloc0(pending, sizeof(struct recurring_op_s)); crm_debug_2("Recording pending op: %d - %s %s", call_id, op_id, call_id_s); pending->call_id = call_id; pending->interval = op->interval; pending->op_key = crm_strdup(op_id); pending->rsc_id = crm_strdup(rsc->id); g_hash_table_replace(pending_ops, call_id_s, pending); if(op->interval > 0 && op->start_delay > START_DELAY_THRESHOLD) { char *uuid = NULL; int dummy = 0, target_rc = 0; crm_info("Faking confirmation of %s: execution postponed for over 5 minutes", op_id); decode_transition_key(op->user_data, &uuid, &dummy, &dummy, &target_rc); crm_free(uuid); op->rc = target_rc; op->op_status = LRM_OP_DONE; send_direct_ack(NULL, NULL, rsc, op, rsc->id); } } crm_free(op_id); free_lrm_op(op); return; } lrm_op_t * copy_lrm_op(const lrm_op_t *op) { lrm_op_t *op_copy = NULL; CRM_CHECK(op != NULL, return NULL); CRM_CHECK(op->rsc_id != NULL, return NULL); crm_malloc0(op_copy, sizeof(lrm_op_t)); op_copy->op_type = crm_strdup(op->op_type); /* input fields */ op_copy->params = g_hash_table_new_full( crm_str_hash, g_str_equal, g_hash_destroy_str, g_hash_destroy_str); if(op->params != NULL) { g_hash_table_foreach(op->params, dup_attr, op_copy->params); } op_copy->timeout = op->timeout; op_copy->interval = op->interval; op_copy->target_rc = op->target_rc; /* in the CRM, this is always a string */ if(op->user_data != NULL) { op_copy->user_data = crm_strdup(op->user_data); } /* output fields */ op_copy->op_status = op->op_status; op_copy->rc = op->rc; op_copy->call_id = op->call_id; op_copy->output = NULL; op_copy->rsc_id = crm_strdup(op->rsc_id); if(op->app_name != NULL) { op_copy->app_name = crm_strdup(op->app_name); } if(op->output != NULL) { op_copy->output = crm_strdup(op->output); } return op_copy; } lrm_rsc_t * copy_lrm_rsc(const lrm_rsc_t *rsc) { lrm_rsc_t *rsc_copy = NULL; if(rsc == NULL) { return NULL; } crm_malloc0(rsc_copy, sizeof(lrm_rsc_t)); rsc_copy->id = crm_strdup(rsc->id); rsc_copy->type = crm_strdup(rsc->type); rsc_copy->class = NULL; rsc_copy->provider = NULL; if(rsc->class != NULL) { rsc_copy->class = crm_strdup(rsc->class); } if(rsc->provider != NULL) { rsc_copy->provider = crm_strdup(rsc->provider); } /* GHashTable* params; */ rsc_copy->params = NULL; rsc_copy->ops = NULL; return rsc_copy; } static void cib_rsc_callback(xmlNode *msg, int call_id, int rc, xmlNode *output, void *user_data) { switch(rc) { case cib_ok: case cib_diff_failed: case cib_diff_resync: crm_debug_2("Resource update %d complete: rc=%d", call_id, rc); break; default: crm_warn("Resource update %d failed: (rc=%d) %s", call_id, rc, cib_error2string(rc)); } } static int do_update_resource(lrm_rsc_t* rsc, lrm_op_t* op) { /* */ int rc = cib_ok; xmlNode *update, *iter = NULL; int call_opt = cib_quorum_override; CRM_CHECK(op != NULL, return 0); if(fsa_state == S_ELECTION || fsa_state == S_PENDING) { crm_info("Sending update to local CIB in state: %s", fsa_state2string(fsa_state)); call_opt |= cib_scope_local; } iter = create_xml_node(iter, XML_CIB_TAG_STATUS); update = iter; iter = create_xml_node(iter, XML_CIB_TAG_STATE); set_uuid(iter, XML_ATTR_UUID, fsa_our_uname); crm_xml_add(iter, XML_ATTR_UNAME, fsa_our_uname); crm_xml_add(iter, XML_ATTR_ORIGIN, __FUNCTION__); iter = create_xml_node(iter, XML_CIB_TAG_LRM); crm_xml_add(iter, XML_ATTR_ID, fsa_our_uuid); iter = create_xml_node(iter, XML_LRM_TAG_RESOURCES); iter = create_xml_node(iter, XML_LRM_TAG_RESOURCE); crm_xml_add(iter, XML_ATTR_ID, op->rsc_id); build_operation_update(iter, rsc, op, __FUNCTION__); if(rsc) { crm_xml_add(iter, XML_ATTR_TYPE, rsc->type); crm_xml_add(iter, XML_AGENT_ATTR_CLASS, rsc->class); crm_xml_add(iter, XML_AGENT_ATTR_PROVIDER,rsc->provider); CRM_CHECK(rsc->type != NULL, crm_err("Resource %s has no value for type", op->rsc_id)); CRM_CHECK(rsc->class != NULL, crm_err("Resource %s has no value for class", op->rsc_id)); } else { crm_warn("Resource %s no longer exists in the lrmd", op->rsc_id); goto cleanup; } /* make it an asyncronous call and be done with it * * Best case: * the resource state will be discovered during * the next signup or election. * * Bad case: * we are shutting down and there is no DC at the time, * but then why were we shutting down then anyway? * (probably because of an internal error) * * Worst case: * we get shot for having resources "running" when the really weren't * * the alternative however means blocking here for too long, which * isnt acceptable */ fsa_cib_update(XML_CIB_TAG_STATUS, update, call_opt, rc, NULL); /* the return code is a call number, not an error code */ crm_debug_2("Sent resource state update message: %d", rc); fsa_cib_conn->cmds->register_callback( fsa_cib_conn, rc, 60, FALSE, NULL, "cib_rsc_callback", cib_rsc_callback); cleanup: free_xml(update); return rc; } void do_lrm_event(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input cur_input, fsa_data_t *msg_data) { CRM_CHECK(FALSE, return); } gboolean process_lrm_event(lrm_op_t *op) { char *op_id = NULL; char *op_key = NULL; int update_id = 0; int log_level = LOG_ERR; gboolean removed = FALSE; lrm_rsc_t *rsc = NULL; struct recurring_op_s *pending = NULL; CRM_CHECK(op != NULL, return FALSE); CRM_CHECK(op->rsc_id != NULL, return FALSE); op_key = generate_op_key(op->rsc_id, op->op_type, op->interval); switch(op->op_status) { case LRM_OP_ERROR: case LRM_OP_PENDING: case LRM_OP_NOTSUPPORTED: break; case LRM_OP_CANCELLED: log_level = LOG_INFO; break; case LRM_OP_DONE: log_level = LOG_INFO; break; case LRM_OP_TIMEOUT: log_level = LOG_DEBUG_3; crm_err("LRM operation %s (%d) %s (timeout=%dms)", op_key, op->call_id, op_status2text(op->op_status), op->timeout); break; default: crm_err("Mapping unknown status (%d) to ERROR", op->op_status); op->op_status = LRM_OP_ERROR; } if(op->op_status == LRM_OP_ERROR && (op->rc == EXECRA_RUNNING_MASTER || op->rc == EXECRA_NOT_RUNNING)) { /* Leave it up to the TE/PE to decide if this is an error */ op->op_status = LRM_OP_DONE; log_level = LOG_INFO; } op_id = make_stop_id(op->rsc_id, op->call_id); pending = g_hash_table_lookup(pending_ops, op_id); rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, op->rsc_id); if(op->op_status != LRM_OP_CANCELLED) { if(safe_str_eq(op->op_type, RSC_NOTIFY)) { /* Keep notify ops out of the CIB */ send_direct_ack(NULL, NULL, NULL, op, op->rsc_id); } else { update_id = do_update_resource(rsc, op); } if(op->interval != 0) { goto out; } } else if(op->interval == 0) { /* This will occur when "crm resource cleanup" is called while actions are in-flight */ crm_err("Op %s (call=%d): Cancelled", op_key, op->call_id); send_direct_ack(NULL, NULL, NULL, op, op->rsc_id); } else if(pending == NULL) { crm_err("Op %s (call=%d): No 'pending' entry", op_key, op->call_id); } else if(op->user_data == NULL) { crm_err("Op %s (call=%d): No user data", op_key, op->call_id); } else if(pending->remove) { delete_op_entry(op, op->rsc_id, op_key, op->call_id); } else { /* Before a stop is called, no need to direct ack */ crm_debug_2("Op %s (call=%d): no delete event required", op_key, op->call_id); } if(g_hash_table_remove(pending_ops, op_id)) { removed = TRUE; crm_debug_2("Op %s (call=%d, stop-id=%s): Confirmed", op_key, op->call_id, op_id); } out: if(op->op_status == LRM_OP_DONE) { do_crm_log(log_level, "LRM operation %s (call=%d, rc=%d, cib-update=%d, confirmed=%s) %s", op_key, op->call_id, op->rc, update_id, removed?"true":"false", execra_code2string(op->rc)); } else { do_crm_log(log_level, "LRM operation %s (call=%d, status=%d, cib-update=%d, confirmed=%s) %s", op_key, op->call_id, op->op_status, update_id, removed?"true":"false", op_status2text(op->op_status)); } if(op->rc != 0 && op->output != NULL) { crm_info("Result: %s", op->output); } else if(op->output != NULL) { crm_debug("Result: %s", op->output); } #ifdef HAVE_LRM_OP_T_RSC_DELETED if(op->rsc_deleted) { crm_info("Deletion of resource '%s' complete after %s", op->rsc_id, op_key); delete_rsc_entry(NULL, op->rsc_id, HA_OK, NULL); } #endif /* If a shutdown was escalated while operations were pending, * then the FSA will be stalled right now... allow it to continue */ mainloop_set_trigger(fsa_source); update_history_cache(rsc, op); lrm_free_rsc(rsc); crm_free(op_key); crm_free(op_id); return TRUE; }