daemons/controld/controld_execd

/* */
This source file includes following definitions.
free_rsc_info
free_deletion_op
free_recurring_op
fail_pending_op
lrm_state_is_local
lrm_state_create
remote_proxy_remove_by_node
find_connected_proxy_by_node
remote_proxy_disconnect_by_node
internal_lrm_state_destroy
lrm_state_reset_tables
lrm_state_init_local
lrm_state_destroy_all
lrm_state_find
lrm_state_find_or_create
lrm_state_get_list
lrm_state_disconnect_only
lrm_state_disconnect
lrm_state_is_connected
lrm_state_poke_connection
controld_connect_local_executor
crmd_remote_proxy_new
crmd_is_proxy_session
crmd_proxy_send
crmd_proxy_dispatch
remote_config_check
crmd_remote_proxy_cb
controld_connect_remote_executor
lrm_state_get_metadata
lrm_state_cancel
lrm_state_get_rsc_info
controld_execute_resource_agent
lrm_state_register_rsc
lrm_state_unregister_rsc
   1 /*
   2  * Copyright 2012-2023 the Pacemaker project contributors
   3  *
   4  * The version control history for this file may have further details.
   5  *
   6  * This source code is licensed under the GNU General Public License version 2
   7  * or later (GPLv2+) WITHOUT ANY WARRANTY.
   8  */
   9 
  10 #include <crm_internal.h>
  11 
  12 #include <errno.h>
  13 
  14 #include <crm/crm.h>
  15 #include <crm/msg_xml.h>
  16 #include <crm/common/iso8601.h>
  17 #include <crm/pengine/rules.h>
  18 #include <crm/pengine/rules_internal.h>
  19 #include <crm/lrmd_internal.h>
  20 
  21 #include <pacemaker-internal.h>
  22 #include <pacemaker-controld.h>
  23 
  24 static GHashTable *lrm_state_table = NULL;
  25 extern GHashTable *proxy_table;
  26 int lrmd_internal_proxy_send(lrmd_t * lrmd, xmlNode *msg);
  27 void lrmd_internal_set_proxy_callback(lrmd_t * lrmd, void *userdata, void (*callback)(lrmd_t *lrmd, void *userdata, xmlNode *msg));
  28 
  29 static void
  30 free_rsc_info(gpointer value)
     /*  */
  31 {
  32     lrmd_rsc_info_t *rsc_info = value;
  33 
  34     lrmd_free_rsc_info(rsc_info);
  35 }
  36 
  37 static void
  38 free_deletion_op(gpointer value)
     /*  */
  39 {
  40     struct pending_deletion_op_s *op = value;
  41 
  42     free(op->rsc);
  43     delete_ha_msg_input(op->input);
  44     free(op);
  45 }
  46 
  47 static void
  48 free_recurring_op(gpointer value)
     /*  */
  49 {
  50     active_op_t *op = value;
  51 
  52     free(op->user_data);
  53     free(op->rsc_id);
  54     free(op->op_type);
  55     free(op->op_key);
  56     if (op->params) {
  57         g_hash_table_destroy(op->params);
  58     }
  59     free(op);
  60 }
  61 
  62 static gboolean
  63 fail_pending_op(gpointer key, gpointer value, gpointer user_data)
     /*  */
  64 {
  65     lrmd_event_data_t event = { 0, };
  66     lrm_state_t *lrm_state = user_data;
  67     active_op_t *op = value;
  68 
  69     crm_trace("Pre-emptively failing " PCMK__OP_FMT " on %s (call=%s, %s)",
  70               op->rsc_id, op->op_type, op->interval_ms,
  71               lrm_state->node_name, (char*)key, op->user_data);
  72 
  73     event.type = lrmd_event_exec_complete;
  74     event.rsc_id = op->rsc_id;
  75     event.op_type = op->op_type;
  76     event.user_data = op->user_data;
  77     event.timeout = 0;
  78     event.interval_ms = op->interval_ms;
  79     lrmd__set_result(&event, PCMK_OCF_UNKNOWN_ERROR, PCMK_EXEC_NOT_CONNECTED,
  80                      "Action was pending when executor connection was dropped");
  81     event.t_run = (unsigned int) op->start_time;
  82     event.t_rcchange = (unsigned int) op->start_time;
  83 
  84     event.call_id = op->call_id;
  85     event.remote_nodename = lrm_state->node_name;
  86     event.params = op->params;
  87 
  88     process_lrm_event(lrm_state, &event, op, NULL);
  89     lrmd__reset_result(&event);
  90     return TRUE;
  91 }
  92 
  93 gboolean
  94 lrm_state_is_local(lrm_state_t *lrm_state)
     /*  */
  95 {
  96     return (lrm_state != NULL)
  97            && pcmk__str_eq(lrm_state->node_name, controld_globals.our_nodename,
  98                            pcmk__str_casei);
  99 }
 100 
 101 /*!
 102  * \internal
 103  * \brief Create executor state entry for a node and add it to the state table
 104  *
 105  * \param[in]  node_name  Node to create entry for
 106  *
 107  * \return Newly allocated executor state object initialized for \p node_name
 108  */
 109 static lrm_state_t *
 110 lrm_state_create(const char *node_name)
     /*  */
 111 {
 112     lrm_state_t *state = NULL;
 113 
 114     if (!node_name) {
 115         crm_err("No node name given for lrm state object");
 116         return NULL;
 117     }
 118 
 119     state = calloc(1, sizeof(lrm_state_t));
 120     if (!state) {
 121         return NULL;
 122     }
 123 
 124     state->node_name = strdup(node_name);
 125     state->rsc_info_cache = pcmk__strkey_table(NULL, free_rsc_info);
 126     state->deletion_ops = pcmk__strkey_table(free, free_deletion_op);
 127     state->active_ops = pcmk__strkey_table(free, free_recurring_op);
 128     state->resource_history = pcmk__strkey_table(NULL, history_free);
 129     state->metadata_cache = metadata_cache_new();
 130 
 131     g_hash_table_insert(lrm_state_table, (char *)state->node_name, state);
 132     return state;
 133 }
 134 
 135 static gboolean
 136 remote_proxy_remove_by_node(gpointer key, gpointer value, gpointer user_data)
     /*  */
 137 {
 138     remote_proxy_t *proxy = value;
 139     const char *node_name = user_data;
 140 
 141     if (pcmk__str_eq(node_name, proxy->node_name, pcmk__str_casei)) {
 142         return TRUE;
 143     }
 144 
 145     return FALSE;
 146 }
 147 
 148 static remote_proxy_t *
 149 find_connected_proxy_by_node(const char * node_name)
     /*  */
 150 {
 151     GHashTableIter gIter;
 152     remote_proxy_t *proxy = NULL;
 153 
 154     CRM_CHECK(proxy_table != NULL, return NULL);
 155 
 156     g_hash_table_iter_init(&gIter, proxy_table);
 157 
 158     while (g_hash_table_iter_next(&gIter, NULL, (gpointer *) &proxy)) {
 159         if (proxy->source
 160             && pcmk__str_eq(node_name, proxy->node_name, pcmk__str_casei)) {
 161             return proxy;
 162         }
 163     }
 164 
 165     return NULL;
 166 }
 167 
 168 static void
 169 remote_proxy_disconnect_by_node(const char * node_name)
     /*  */
 170 {
 171     remote_proxy_t *proxy = NULL;
 172 
 173     CRM_CHECK(proxy_table != NULL, return);
 174 
 175     while ((proxy = find_connected_proxy_by_node(node_name)) != NULL) {
 176         /* mainloop_del_ipc_client() eventually calls remote_proxy_disconnected()
 177          * , which removes the entry from proxy_table.
 178          * Do not do this in a g_hash_table_iter_next() loop. */
 179         if (proxy->source) {
 180             mainloop_del_ipc_client(proxy->source);
 181         }
 182     }
 183 
 184     return;
 185 }
 186 
 187 static void
 188 internal_lrm_state_destroy(gpointer data)
     /*  */
 189 {
 190     lrm_state_t *lrm_state = data;
 191 
 192     if (!lrm_state) {
 193         return;
 194     }
 195 
 196     /* Rather than directly remove the recorded proxy entries from proxy_table,
 197      * make sure any connected proxies get disconnected. So that
 198      * remote_proxy_disconnected() will be called and as well remove the
 199      * entries from proxy_table.
 200      */
 201     remote_proxy_disconnect_by_node(lrm_state->node_name);
 202 
 203     crm_trace("Destroying proxy table %s with %u members",
 204               lrm_state->node_name, g_hash_table_size(proxy_table));
 205     // Just in case there's still any leftovers in proxy_table
 206     g_hash_table_foreach_remove(proxy_table, remote_proxy_remove_by_node, (char *) lrm_state->node_name);
 207     remote_ra_cleanup(lrm_state);
 208     lrmd_api_delete(lrm_state->conn);
 209 
 210     if (lrm_state->rsc_info_cache) {
 211         crm_trace("Destroying rsc info cache with %u members",
 212                   g_hash_table_size(lrm_state->rsc_info_cache));
 213         g_hash_table_destroy(lrm_state->rsc_info_cache);
 214     }
 215     if (lrm_state->resource_history) {
 216         crm_trace("Destroying history op cache with %u members",
 217                   g_hash_table_size(lrm_state->resource_history));
 218         g_hash_table_destroy(lrm_state->resource_history);
 219     }
 220     if (lrm_state->deletion_ops) {
 221         crm_trace("Destroying deletion op cache with %u members",
 222                   g_hash_table_size(lrm_state->deletion_ops));
 223         g_hash_table_destroy(lrm_state->deletion_ops);
 224     }
 225     if (lrm_state->active_ops != NULL) {
 226         crm_trace("Destroying pending op cache with %u members",
 227                   g_hash_table_size(lrm_state->active_ops));
 228         g_hash_table_destroy(lrm_state->active_ops);
 229     }
 230     metadata_cache_free(lrm_state->metadata_cache);
 231 
 232     free((char *)lrm_state->node_name);
 233     free(lrm_state);
 234 }
 235 
 236 void
 237 lrm_state_reset_tables(lrm_state_t * lrm_state, gboolean reset_metadata)
     /*  */
 238 {
 239     if (lrm_state->resource_history) {
 240         crm_trace("Resetting resource history cache with %u members",
 241                   g_hash_table_size(lrm_state->resource_history));
 242         g_hash_table_remove_all(lrm_state->resource_history);
 243     }
 244     if (lrm_state->deletion_ops) {
 245         crm_trace("Resetting deletion operations cache with %u members",
 246                   g_hash_table_size(lrm_state->deletion_ops));
 247         g_hash_table_remove_all(lrm_state->deletion_ops);
 248     }
 249     if (lrm_state->active_ops != NULL) {
 250         crm_trace("Resetting active operations cache with %u members",
 251                   g_hash_table_size(lrm_state->active_ops));
 252         g_hash_table_remove_all(lrm_state->active_ops);
 253     }
 254     if (lrm_state->rsc_info_cache) {
 255         crm_trace("Resetting resource information cache with %u members",
 256                   g_hash_table_size(lrm_state->rsc_info_cache));
 257         g_hash_table_remove_all(lrm_state->rsc_info_cache);
 258     }
 259     if (reset_metadata) {
 260         metadata_cache_reset(lrm_state->metadata_cache);
 261     }
 262 }
 263 
 264 gboolean
 265 lrm_state_init_local(void)
     /*  */
 266 {
 267     if (lrm_state_table) {
 268         return TRUE;
 269     }
 270 
 271     lrm_state_table = pcmk__strikey_table(NULL, internal_lrm_state_destroy);
 272     if (!lrm_state_table) {
 273         return FALSE;
 274     }
 275 
 276     proxy_table = pcmk__strikey_table(NULL, remote_proxy_free);
 277     if (!proxy_table) {
 278         g_hash_table_destroy(lrm_state_table);
 279         lrm_state_table = NULL;
 280         return FALSE;
 281     }
 282 
 283     return TRUE;
 284 }
 285 
 286 void
 287 lrm_state_destroy_all(void)
     /*  */
 288 {
 289     if (lrm_state_table) {
 290         crm_trace("Destroying state table with %u members",
 291                   g_hash_table_size(lrm_state_table));
 292         g_hash_table_destroy(lrm_state_table); lrm_state_table = NULL;
 293     }
 294     if(proxy_table) {
 295         crm_trace("Destroying proxy table with %u members",
 296                   g_hash_table_size(proxy_table));
 297         g_hash_table_destroy(proxy_table); proxy_table = NULL;
 298     }
 299 }
 300 
 301 lrm_state_t *
 302 lrm_state_find(const char *node_name)
     /*  */
 303 {
 304     if ((node_name == NULL) || (lrm_state_table == NULL)) {
 305         return NULL;
 306     }
 307     return g_hash_table_lookup(lrm_state_table, node_name);
 308 }
 309 
 310 lrm_state_t *
 311 lrm_state_find_or_create(const char *node_name)
     /*  */
 312 {
 313     lrm_state_t *lrm_state;
 314 
 315     CRM_CHECK(lrm_state_table != NULL, return NULL);
 316 
 317     lrm_state = g_hash_table_lookup(lrm_state_table, node_name);
 318     if (!lrm_state) {
 319         lrm_state = lrm_state_create(node_name);
 320     }
 321 
 322     return lrm_state;
 323 }
 324 
 325 GList *
 326 lrm_state_get_list(void)
     /*  */
 327 {
 328     if (lrm_state_table == NULL) {
 329         return NULL;
 330     }
 331     return g_hash_table_get_values(lrm_state_table);
 332 }
 333 
 334 void
 335 lrm_state_disconnect_only(lrm_state_t * lrm_state)
     /*  */
 336 {
 337     int removed = 0;
 338 
 339     if (!lrm_state->conn) {
 340         return;
 341     }
 342     crm_trace("Disconnecting %s", lrm_state->node_name);
 343 
 344     remote_proxy_disconnect_by_node(lrm_state->node_name);
 345 
 346     ((lrmd_t *) lrm_state->conn)->cmds->disconnect(lrm_state->conn);
 347 
 348     if (!pcmk_is_set(controld_globals.fsa_input_register, R_SHUTDOWN)) {
 349         removed = g_hash_table_foreach_remove(lrm_state->active_ops,
 350                                               fail_pending_op, lrm_state);
 351         crm_trace("Synthesized %d operation failures for %s", removed, lrm_state->node_name);
 352     }
 353 }
 354 
 355 void
 356 lrm_state_disconnect(lrm_state_t * lrm_state)
     /*  */
 357 {
 358     if (!lrm_state->conn) {
 359         return;
 360     }
 361 
 362     lrm_state_disconnect_only(lrm_state);
 363 
 364     lrmd_api_delete(lrm_state->conn);
 365     lrm_state->conn = NULL;
 366 }
 367 
 368 int
 369 lrm_state_is_connected(lrm_state_t * lrm_state)
     /*  */
 370 {
 371     if (!lrm_state->conn) {
 372         return FALSE;
 373     }
 374     return ((lrmd_t *) lrm_state->conn)->cmds->is_connected(lrm_state->conn);
 375 }
 376 
 377 int
 378 lrm_state_poke_connection(lrm_state_t * lrm_state)
     /*  */
 379 {
 380 
 381     if (!lrm_state->conn) {
 382         return -ENOTCONN;
 383     }
 384     return ((lrmd_t *) lrm_state->conn)->cmds->poke_connection(lrm_state->conn);
 385 }
 386 
 387 // \return Standard Pacemaker return code
 388 int
 389 controld_connect_local_executor(lrm_state_t *lrm_state)
     /*  */
 390 {
 391     int rc = pcmk_rc_ok;
 392 
 393     if (lrm_state->conn == NULL) {
 394         lrmd_t *api = NULL;
 395 
 396         rc = lrmd__new(&api, NULL, NULL, 0);
 397         if (rc != pcmk_rc_ok) {
 398             return rc;
 399         }
 400         api->cmds->set_callback(api, lrm_op_callback);
 401         lrm_state->conn = api;
 402     }
 403 
 404     rc = ((lrmd_t *) lrm_state->conn)->cmds->connect(lrm_state->conn,
 405                                                      CRM_SYSTEM_CRMD, NULL);
 406     rc = pcmk_legacy2rc(rc);
 407 
 408     if (rc == pcmk_rc_ok) {
 409         lrm_state->num_lrm_register_fails = 0;
 410     } else {
 411         lrm_state->num_lrm_register_fails++;
 412     }
 413     return rc;
 414 }
 415 
 416 static remote_proxy_t *
 417 crmd_remote_proxy_new(lrmd_t *lrmd, const char *node_name, const char *session_id, const char *channel)
     /*  */
 418 {
 419     struct ipc_client_callbacks proxy_callbacks = {
 420         .dispatch = remote_proxy_dispatch,
 421         .destroy = remote_proxy_disconnected
 422     };
 423     remote_proxy_t *proxy = remote_proxy_new(lrmd, &proxy_callbacks, node_name,
 424                                              session_id, channel);
 425     return proxy;
 426 }
 427 
 428 gboolean
 429 crmd_is_proxy_session(const char *session)
     /*  */
 430 {
 431     return g_hash_table_lookup(proxy_table, session) ? TRUE : FALSE;
 432 }
 433 
 434 void
 435 crmd_proxy_send(const char *session, xmlNode *msg)
     /*  */
 436 {
 437     remote_proxy_t *proxy = g_hash_table_lookup(proxy_table, session);
 438     lrm_state_t *lrm_state = NULL;
 439 
 440     if (!proxy) {
 441         return;
 442     }
 443     crm_log_xml_trace(msg, "to-proxy");
 444     lrm_state = lrm_state_find(proxy->node_name);
 445     if (lrm_state) {
 446         crm_trace("Sending event to %.8s on %s", proxy->session_id, proxy->node_name);
 447         remote_proxy_relay_event(proxy, msg);
 448     }
 449 }
 450 
 451 static void
 452 crmd_proxy_dispatch(const char *session, xmlNode *msg)
     /*  */
 453 {
 454     crm_trace("Processing proxied IPC message from session %s", session);
 455     crm_log_xml_trace(msg, "controller[inbound]");
 456     crm_xml_add(msg, F_CRM_SYS_FROM, session);
 457     if (controld_authorize_ipc_message(msg, NULL, session)) {
 458         route_message(C_IPC_MESSAGE, msg);
 459     }
 460     controld_trigger_fsa();
 461 }
 462 
 463 static void
 464 remote_config_check(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
     /*  */
 465 {
 466     if (rc != pcmk_ok) {
 467         crm_err("Query resulted in an error: %s", pcmk_strerror(rc));
 468 
 469         if (rc == -EACCES || rc == -pcmk_err_schema_validation) {
 470             crm_err("The cluster is mis-configured - shutting down and staying down");
 471         }
 472 
 473     } else {
 474         lrmd_t * lrmd = (lrmd_t *)user_data;
 475         crm_time_t *now = crm_time_new(NULL);
 476         GHashTable *config_hash = pcmk__strkey_table(free, free);
 477 
 478         crm_debug("Call %d : Parsing CIB options", call_id);
 479 
 480         pe_unpack_nvpairs(output, output, XML_CIB_TAG_PROPSET, NULL,
 481                           config_hash, CIB_OPTIONS_FIRST, FALSE, now, NULL);
 482 
 483         /* Now send it to the remote peer */
 484         lrmd__validate_remote_settings(lrmd, config_hash);
 485 
 486         g_hash_table_destroy(config_hash);
 487         crm_time_free(now);
 488     }
 489 }
 490 
 491 static void
 492 crmd_remote_proxy_cb(lrmd_t *lrmd, void *userdata, xmlNode *msg)
     /*  */
 493 {
 494     lrm_state_t *lrm_state = userdata;
 495     const char *session = crm_element_value(msg, F_LRMD_IPC_SESSION);
 496     remote_proxy_t *proxy = g_hash_table_lookup(proxy_table, session);
 497 
 498     const char *op = crm_element_value(msg, F_LRMD_IPC_OP);
 499     if (pcmk__str_eq(op, LRMD_IPC_OP_NEW, pcmk__str_casei)) {
 500         const char *channel = crm_element_value(msg, F_LRMD_IPC_IPC_SERVER);
 501 
 502         proxy = crmd_remote_proxy_new(lrmd, lrm_state->node_name, session, channel);
 503         if (!remote_ra_controlling_guest(lrm_state)) {
 504             if (proxy != NULL) {
 505                 cib_t *cib_conn = controld_globals.cib_conn;
 506 
 507                 /* Look up stonith-watchdog-timeout and send to the remote peer for validation */
 508                 int rc = cib_conn->cmds->query(cib_conn, XML_CIB_TAG_CRMCONFIG,
 509                                                NULL, cib_scope_local);
 510                 cib_conn->cmds->register_callback_full(cib_conn, rc, 10, FALSE,
 511                                                        lrmd,
 512                                                        "remote_config_check",
 513                                                        remote_config_check,
 514                                                        NULL);
 515             }
 516         } else {
 517             crm_debug("Skipping remote_config_check for guest-nodes");
 518         }
 519 
 520     } else if (pcmk__str_eq(op, LRMD_IPC_OP_SHUTDOWN_REQ, pcmk__str_casei)) {
 521         char *now_s = NULL;
 522 
 523         crm_notice("%s requested shutdown of its remote connection",
 524                    lrm_state->node_name);
 525 
 526         if (!remote_ra_is_in_maintenance(lrm_state)) {
 527             now_s = pcmk__ttoa(time(NULL));
 528             update_attrd(lrm_state->node_name, XML_CIB_ATTR_SHUTDOWN, now_s, NULL, TRUE);
 529             free(now_s);
 530 
 531             remote_proxy_ack_shutdown(lrmd);
 532 
 533             crm_warn("Reconnection attempts to %s may result in failures that must be cleared",
 534                     lrm_state->node_name);
 535         } else {
 536             remote_proxy_nack_shutdown(lrmd);
 537 
 538             crm_notice("Remote resource for %s is not managed so no ordered shutdown happening",
 539                     lrm_state->node_name);
 540         }
 541         return;
 542 
 543     } else if (pcmk__str_eq(op, LRMD_IPC_OP_REQUEST, pcmk__str_casei) && proxy && proxy->is_local) {
 544         /* This is for the controller, which we are, so don't try
 545          * to send to ourselves over IPC -- do it directly.
 546          */
 547         int flags = 0;
 548         xmlNode *request = get_message_xml(msg, F_LRMD_IPC_MSG);
 549 
 550         CRM_CHECK(request != NULL, return);
 551         CRM_CHECK(lrm_state->node_name, return);
 552         crm_xml_add(request, XML_ACL_TAG_ROLE, "pacemaker-remote");
 553         pcmk__update_acl_user(request, F_LRMD_IPC_USER, lrm_state->node_name);
 554 
 555         /* Pacemaker Remote nodes don't know their own names (as known to the
 556          * cluster). When getting a node info request with no name or ID, add
 557          * the name, so we don't return info for ourselves instead of the
 558          * Pacemaker Remote node.
 559          */
 560         if (pcmk__str_eq(crm_element_value(request, F_CRM_TASK), CRM_OP_NODE_INFO, pcmk__str_casei)) {
 561             int node_id = 0;
 562 
 563             crm_element_value_int(request, XML_ATTR_ID, &node_id);
 564             if ((node_id <= 0)
 565                 && (crm_element_value(request, XML_ATTR_UNAME) == NULL)) {
 566                 crm_xml_add(request, XML_ATTR_UNAME, lrm_state->node_name);
 567             }
 568         }
 569 
 570         crmd_proxy_dispatch(session, request);
 571 
 572         crm_element_value_int(msg, F_LRMD_IPC_MSG_FLAGS, &flags);
 573         if (flags & crm_ipc_client_response) {
 574             int msg_id = 0;
 575             xmlNode *op_reply = create_xml_node(NULL, "ack");
 576 
 577             crm_xml_add(op_reply, "function", __func__);
 578             crm_xml_add_int(op_reply, "line", __LINE__);
 579 
 580             crm_element_value_int(msg, F_LRMD_IPC_MSG_ID, &msg_id);
 581             remote_proxy_relay_response(proxy, op_reply, msg_id);
 582 
 583             free_xml(op_reply);
 584         }
 585 
 586     } else {
 587         remote_proxy_cb(lrmd, lrm_state->node_name, msg);
 588     }
 589 }
 590 
 591 
 592 // \return Standard Pacemaker return code
 593 int
 594 controld_connect_remote_executor(lrm_state_t *lrm_state, const char *server,
     /*  */
 595                                  int port, int timeout_ms)
 596 {
 597     int rc = pcmk_rc_ok;
 598 
 599     if (lrm_state->conn == NULL) {
 600         lrmd_t *api = NULL;
 601 
 602         rc = lrmd__new(&api, lrm_state->node_name, server, port);
 603         if (rc != pcmk_rc_ok) {
 604             crm_warn("Pacemaker Remote connection to %s:%s failed: %s "
 605                      CRM_XS " rc=%d", server, port, pcmk_rc_str(rc), rc);
 606 
 607             return rc;
 608         }
 609         lrm_state->conn = api;
 610         api->cmds->set_callback(api, remote_lrm_op_callback);
 611         lrmd_internal_set_proxy_callback(api, lrm_state, crmd_remote_proxy_cb);
 612     }
 613 
 614     crm_trace("Initiating remote connection to %s:%d with timeout %dms",
 615               server, port, timeout_ms);
 616     rc = ((lrmd_t *) lrm_state->conn)->cmds->connect_async(lrm_state->conn,
 617                                                            lrm_state->node_name,
 618                                                            timeout_ms);
 619     if (rc == pcmk_ok) {
 620         lrm_state->num_lrm_register_fails = 0;
 621     } else {
 622         lrm_state->num_lrm_register_fails++; // Ignored for remote connections
 623     }
 624     return pcmk_legacy2rc(rc);
 625 }
 626 
 627 int
 628 lrm_state_get_metadata(lrm_state_t * lrm_state,
     /*  */
 629                        const char *class,
 630                        const char *provider,
 631                        const char *agent, char **output, enum lrmd_call_options options)
 632 {
 633     lrmd_key_value_t *params = NULL;
 634 
 635     if (!lrm_state->conn) {
 636         return -ENOTCONN;
 637     }
 638 
 639     /* Add the node name to the environment, as is done with normal resource
 640      * action calls. Meta-data calls shouldn't need it, but some agents are
 641      * written with an ocf_local_nodename call at the beginning regardless of
 642      * action. Without the environment variable, the agent would try to contact
 643      * the controller to get the node name -- but the controller would be
 644      * blocking on the synchronous meta-data call.
 645      *
 646      * At this point, we have to assume that agents are unlikely to make other
 647      * calls that require the controller, such as crm_node --quorum or
 648      * --cluster-id.
 649      *
 650      * @TODO Make meta-data calls asynchronous. (This will be part of a larger
 651      * project to make meta-data calls via the executor rather than directly.)
 652      */
 653     params = lrmd_key_value_add(params, CRM_META "_" XML_LRM_ATTR_TARGET,
 654                                 lrm_state->node_name);
 655 
 656     return ((lrmd_t *) lrm_state->conn)->cmds->get_metadata_params(lrm_state->conn,
 657             class, provider, agent, output, options, params);
 658 }
 659 
 660 int
 661 lrm_state_cancel(lrm_state_t *lrm_state, const char *rsc_id, const char *action,
     /*  */
 662                  guint interval_ms)
 663 {
 664     if (!lrm_state->conn) {
 665         return -ENOTCONN;
 666     }
 667 
 668     /* Figure out a way to make this async?
 669      * NOTICE: Currently it's synced and directly acknowledged in do_lrm_invoke(). */
 670     if (is_remote_lrmd_ra(NULL, NULL, rsc_id)) {
 671         return remote_ra_cancel(lrm_state, rsc_id, action, interval_ms);
 672     }
 673     return ((lrmd_t *) lrm_state->conn)->cmds->cancel(lrm_state->conn, rsc_id,
 674                                                       action, interval_ms);
 675 }
 676 
 677 lrmd_rsc_info_t *
 678 lrm_state_get_rsc_info(lrm_state_t * lrm_state, const char *rsc_id, enum lrmd_call_options options)
     /*  */
 679 {
 680     lrmd_rsc_info_t *rsc = NULL;
 681 
 682     if (!lrm_state->conn) {
 683         return NULL;
 684     }
 685     if (is_remote_lrmd_ra(NULL, NULL, rsc_id)) {
 686         return remote_ra_get_rsc_info(lrm_state, rsc_id);
 687     }
 688 
 689     rsc = g_hash_table_lookup(lrm_state->rsc_info_cache, rsc_id);
 690     if (rsc == NULL) {
 691         /* only contact the lrmd if we don't already have a cached rsc info */
 692         rsc = ((lrmd_t *) lrm_state->conn)->cmds->get_rsc_info(lrm_state->conn, rsc_id, options);
 693         if (rsc == NULL) {
 694                     return NULL;
 695         }
 696         /* cache the result */
 697         g_hash_table_insert(lrm_state->rsc_info_cache, rsc->id, rsc);
 698     }
 699 
 700     return lrmd_copy_rsc_info(rsc);
 701 
 702 }
 703 
 704 /*!
 705  * \internal
 706  * \brief Initiate a resource agent action
 707  *
 708  * \param[in,out] lrm_state       Executor state object
 709  * \param[in]     rsc_id          ID of resource for action
 710  * \param[in]     action          Action to execute
 711  * \param[in]     userdata        String to copy and pass to execution callback
 712  * \param[in]     interval_ms     Action interval (in milliseconds)
 713  * \param[in]     timeout_ms      Action timeout (in milliseconds)
 714  * \param[in]     start_delay_ms  Delay (in ms) before initiating action
 715  * \param[in]     parameters      Hash table of resource parameters
 716  * \param[out]    call_id         Where to store call ID on success
 717  *
 718  * \return Standard Pacemaker return code
 719  */
 720 int
 721 controld_execute_resource_agent(lrm_state_t *lrm_state, const char *rsc_id,
     /*  */
 722                                 const char *action, const char *userdata,
 723                                 guint interval_ms, int timeout_ms,
 724                                 int start_delay_ms, GHashTable *parameters,
 725                                 int *call_id)
 726 {
 727     int rc = pcmk_rc_ok;
 728     lrmd_key_value_t *params = NULL;
 729 
 730     if (lrm_state->conn == NULL) {
 731         return ENOTCONN;
 732     }
 733 
 734     // Convert parameters from hash table to list
 735     if (parameters != NULL) {
 736         const char *key = NULL;
 737         const char *value = NULL;
 738         GHashTableIter iter;
 739 
 740         g_hash_table_iter_init(&iter, parameters);
 741         while (g_hash_table_iter_next(&iter, (gpointer *) &key,
 742                                       (gpointer *) &value)) {
 743             params = lrmd_key_value_add(params, key, value);
 744         }
 745     }
 746 
 747     if (is_remote_lrmd_ra(NULL, NULL, rsc_id)) {
 748         rc = controld_execute_remote_agent(lrm_state, rsc_id, action,
 749                                            userdata, interval_ms, timeout_ms,
 750                                            start_delay_ms, params, call_id);
 751 
 752     } else {
 753         rc = ((lrmd_t *) lrm_state->conn)->cmds->exec(lrm_state->conn, rsc_id,
 754                                                       action, userdata,
 755                                                       interval_ms, timeout_ms,
 756                                                       start_delay_ms,
 757                                                       lrmd_opt_notify_changes_only,
 758                                                       params);
 759         if (rc < 0) {
 760             rc = pcmk_legacy2rc(rc);
 761         } else {
 762             *call_id = rc;
 763             rc = pcmk_rc_ok;
 764         }
 765     }
 766     return rc;
 767 }
 768 
 769 int
 770 lrm_state_register_rsc(lrm_state_t * lrm_state,
     /*  */
 771                        const char *rsc_id,
 772                        const char *class,
 773                        const char *provider, const char *agent, enum lrmd_call_options options)
 774 {
 775     lrmd_t *conn = (lrmd_t *) lrm_state->conn;
 776 
 777     if (conn == NULL) {
 778         return -ENOTCONN;
 779     }
 780 
 781     if (is_remote_lrmd_ra(agent, provider, NULL)) {
 782         return lrm_state_find_or_create(rsc_id)? pcmk_ok : -EINVAL;
 783     }
 784 
 785     /* @TODO Implement an asynchronous version of this (currently a blocking
 786      * call to the lrmd).
 787      */
 788     return conn->cmds->register_rsc(lrm_state->conn, rsc_id, class, provider,
 789                                     agent, options);
 790 }
 791 
 792 int
 793 lrm_state_unregister_rsc(lrm_state_t * lrm_state,
     /*  */
 794                          const char *rsc_id, enum lrmd_call_options options)
 795 {
 796     if (!lrm_state->conn) {
 797         return -ENOTCONN;
 798     }
 799 
 800     if (is_remote_lrmd_ra(NULL, NULL, rsc_id)) {
 801         g_hash_table_remove(lrm_state_table, rsc_id);
 802         return pcmk_ok;
 803     }
 804 
 805     g_hash_table_remove(lrm_state->rsc_info_cache, rsc_id);
 806 
 807     /* @TODO Optimize this ... this function is a blocking round trip from
 808      * client to daemon. The controld_execd_state.c code path that uses this
 809      * function should always treat it as an async operation. The executor API
 810      * should make an async version available.
 811      */
 812     return ((lrmd_t *) lrm_state->conn)->cmds->unregister_rsc(lrm_state->conn, rsc_id, options);
 813 }
/* */
root/daemons/controld/controld_execd_state.c

DEFINITIONS
