ctdb/server/ctdb_control.c

   1 /*
   2    ctdb_control protocol code
   3
   4    Copyright (C) Andrew Tridgell  2007
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19 #include "replace.h"
  20 #include "system/network.h"
  21 #include "system/filesys.h"
  22 #include "system/wait.h"
  23
  24 #include <talloc.h>
  25 #include <tevent.h>
  26
  27 #include "lib/tdb_wrap/tdb_wrap.h"
  28 #include "lib/util/dlinklist.h"
  29 #include "lib/util/debug.h"
  30 #include "lib/util/samba_util.h"
  31 #include "lib/util/talloc_report.h"
  32
  33 #include "ctdb_private.h"
  34 #include "ctdb_client.h"
  35
  36 #include "protocol/protocol_private.h"
  37
  38 #include "common/reqid.h"
  39 #include "common/common.h"
  40 #include "common/logging.h"
  41
  42
  43 struct ctdb_control_state {
  44         struct ctdb_context *ctdb;
  45         uint32_t reqid;
  46         ctdb_control_callback_fn_t callback;
  47         void *private_data;
  48         unsigned flags;
  49 };
  50
  51
  52 /*
  53   dump talloc memory hierarchy, returning it as a blob to the client
  54  */
  55 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata)
  56 {
  57         char *report;
  58         size_t reportlen;
  59
  60         report = talloc_report_str(outdata, NULL);
  61         if (report == NULL) {
  62                 DEBUG(DEBUG_ERR,
  63                       (__location__ " talloc_report_str failed\n"));
  64                 return -1;
  65         }
  66         reportlen = talloc_get_size(report);
  67
  68         if (reportlen > 0) {
  69                 reportlen -= 1; /* strip trailing zero */
  70         }
  71
  72         outdata->dptr = (uint8_t *)report;
  73         outdata->dsize = reportlen;
  74         return 0;
  75 }
  76
  77 static int32_t control_not_implemented(const char *unsupported,
  78                                        const char *alternate)
  79 {
  80         if (alternate == NULL) {
  81                 DEBUG(DEBUG_ERR,
  82                       ("Control %s is not implemented any more\n",
  83                        unsupported));
  84         } else {
  85                 DEBUG(DEBUG_ERR,
  86                       ("Control %s is not implemented any more, use %s instead\n",
  87                        unsupported, alternate));
  88         }
  89         return -1;
  90 }
  91
  92 struct ctdb_echo_data_state {
  93         struct ctdb_context *ctdb;
  94         struct ctdb_req_control_old *c;
  95         struct ctdb_echo_data *data;
  96 };
  97
  98 static void ctdb_echo_data_timeout(
  99         struct tevent_context *ev,
 100         struct tevent_timer *te,
 101         struct timeval now,
 102         void *private_data);
 103
 104 static int32_t ctdb_control_echo_data(
 105         struct ctdb_context *ctdb,
 106         struct ctdb_req_control_old *c,
 107         TDB_DATA indata,
 108         bool *async_reply)
 109 {
 110         struct ctdb_echo_data_state *state = NULL;
 111         struct tevent_timer *te = NULL;
 112         uint32_t delay = 0;
 113         size_t np = 0;
 114         int ret;
 115
 116         state = talloc_zero(ctdb, struct ctdb_echo_data_state);
 117         CTDB_NO_MEMORY(ctdb, state);
 118         state->ctdb = ctdb;
 119
 120         ret = ctdb_echo_data_pull(
 121                 indata.dptr, indata.dsize, state, &state->data, &np);
 122         if (ret != 0) {
 123                 DBG_DEBUG("ctdb_echo_data_pull failed: %s\n",
 124                           strerror(ret));
 125                 TALLOC_FREE(state);
 126                 return -1;
 127         }
 128
 129         te = tevent_add_timer(
 130                 ctdb->ev,
 131                 state,
 132                 timeval_current_ofs_msec(delay),
 133                 ctdb_echo_data_timeout,
 134                 state);
 135         if (te == NULL) {
 136                 DBG_DEBUG("tevent_add_timer failed\n");
 137                 TALLOC_FREE(state);
 138                 return -1;
 139         }
 140
 141         state->c = talloc_move(state, &c);
 142         *async_reply = true;
 143
 144         return 0;
 145 }
 146
 147 static void ctdb_echo_data_timeout(
 148         struct tevent_context *ev,
 149         struct tevent_timer *te,
 150         struct timeval now,
 151         void *private_data)
 152 {
 153         struct ctdb_echo_data_state *state = talloc_get_type_abort(
 154                 private_data, struct ctdb_echo_data_state);
 155         size_t len = ctdb_echo_data_len(state->data);
 156         uint8_t *buf = NULL;
 157         size_t np;
 158         TDB_DATA data;
 159
 160         DBG_DEBUG("reqid=%"PRIu32" len=%zu\n", state->c->hdr.reqid, len);
 161
 162         buf = talloc_array(state, uint8_t, len);
 163         if (buf == NULL) {
 164                 DBG_WARNING("talloc_array(%zu) failed\n", len);
 165                 goto done;
 166         }
 167         ctdb_echo_data_push(state->data, buf, &np);
 168         data = (TDB_DATA) { .dptr = buf, .dsize = np };
 169
 170         ctdb_request_control_reply(state->ctdb, state->c, &data, 0, NULL);
 171
 172 done:
 173         TALLOC_FREE(state);
 174 }
 175
 176 static int ctdb_control_disable_node(struct ctdb_context *ctdb)
 177 {
 178         struct ctdb_node *node;
 179
 180         node = ctdb_find_node(ctdb, CTDB_CURRENT_NODE);
 181         if (node == NULL) {
 182                 /* Can't happen */
 183                 DBG_ERR("Unable to find current node\n");
 184                 return -1;
 185         }
 186
 187         D_ERR("Disable node\n");
 188         node->flags |= NODE_FLAGS_PERMANENTLY_DISABLED;
 189
 190         return 0;
 191 }
 192
 193 static int ctdb_control_enable_node(struct ctdb_context *ctdb)
 194 {
 195         struct ctdb_node *node;
 196
 197         node = ctdb_find_node(ctdb, CTDB_CURRENT_NODE);
 198         if (node == NULL) {
 199                 /* Can't happen */
 200                 DBG_ERR("Unable to find current node\n");
 201                 return -1;
 202         }
 203
 204         D_ERR("Enable node\n");
 205         node->flags &= ~NODE_FLAGS_PERMANENTLY_DISABLED;
 206
 207         return 0;
 208 }
 209
 210 /*
 211   process a control request
 212  */
 213 static int32_t ctdb_control_dispatch(struct ctdb_context *ctdb,
 214                                      struct ctdb_req_control_old *c,
 215                                      TDB_DATA indata,
 216                                      TDB_DATA *outdata, uint32_t srcnode,
 217                                      const char **errormsg,
 218                                      bool *async_reply)
 219 {
 220         uint32_t opcode = c->opcode;
 221         uint64_t srvid = c->srvid;
 222         uint32_t client_id = c->client_id;
 223         static int level = DEBUG_ERR;
 224
 225         switch (opcode) {
 226         case CTDB_CONTROL_PROCESS_EXISTS: {
 227                 CHECK_CONTROL_DATA_SIZE(sizeof(pid_t));
 228                 return ctdb_control_process_exists(ctdb, *(pid_t *)indata.dptr);
 229         }
 230
 231         case CTDB_CONTROL_SET_DEBUG: {
 232                 union {
 233                         uint8_t *ptr;
 234                         int32_t *level;
 235                 } debug;
 236                 CHECK_CONTROL_DATA_SIZE(sizeof(int32_t));
 237                 debug.ptr = indata.dptr;
 238                 debuglevel_set(*debug.level);
 239                 return 0;
 240         }
 241
 242         case CTDB_CONTROL_GET_DEBUG: {
 243                 CHECK_CONTROL_DATA_SIZE(0);
 244                 level = debuglevel_get();
 245                 outdata->dptr = (uint8_t *)&(level);
 246                 outdata->dsize = sizeof(DEBUGLEVEL);
 247                 return 0;
 248         }
 249
 250         case CTDB_CONTROL_STATISTICS: {
 251                 CHECK_CONTROL_DATA_SIZE(0);
 252                 ctdb->statistics.memory_used = talloc_total_size(NULL);
 253                 ctdb->statistics.num_clients = ctdb->num_clients;
 254                 ctdb->statistics.frozen = (ctdb_db_all_frozen(ctdb) ? 1 : 0);
 255                 ctdb->statistics.recovering = (ctdb->recovery_mode == CTDB_RECOVERY_ACTIVE);
 256                 ctdb->statistics.statistics_current_time = timeval_current();
 257
 258                 outdata->dptr = (uint8_t *)&ctdb->statistics;
 259                 outdata->dsize = sizeof(ctdb->statistics);
 260                 return 0;
 261         }
 262
 263         case CTDB_CONTROL_GET_ALL_TUNABLES: {
 264                 CHECK_CONTROL_DATA_SIZE(0);
 265                 outdata->dptr = (uint8_t *)&ctdb->tunable;
 266                 outdata->dsize = sizeof(ctdb->tunable);
 267                 return 0;
 268         }
 269
 270         case CTDB_CONTROL_DUMP_MEMORY: {
 271                 CHECK_CONTROL_DATA_SIZE(0);
 272                 return ctdb_dump_memory(ctdb, outdata);
 273         }
 274
 275         case CTDB_CONTROL_STATISTICS_RESET: {
 276                 struct ctdb_db_context *ctdb_db;
 277
 278                 CHECK_CONTROL_DATA_SIZE(0);
 279                 ZERO_STRUCT(ctdb->statistics);
 280                 for (ctdb_db = ctdb->db_list;
 281                      ctdb_db != NULL;
 282                      ctdb_db = ctdb_db->next) {
 283                         ctdb_db_statistics_reset(ctdb_db);
 284                 }
 285                 ctdb->statistics.statistics_start_time = timeval_current();
 286                 return 0;
 287         }
 288
 289         case CTDB_CONTROL_GETVNNMAP:
 290                 return ctdb_control_getvnnmap(ctdb, opcode, indata, outdata);
 291
 292         case CTDB_CONTROL_GET_DBMAP:
 293                 return ctdb_control_getdbmap(ctdb, opcode, indata, outdata);
 294
 295         case CTDB_CONTROL_GET_NODEMAPv4:
 296                 return control_not_implemented("GET_NODEMAPv4", "GET_NODEMAP");
 297
 298         case CTDB_CONTROL_GET_NODEMAP:
 299                 return ctdb_control_getnodemap(ctdb, opcode, indata, outdata);
 300
 301         case CTDB_CONTROL_GET_NODES_FILE:
 302                 return ctdb_control_getnodesfile(ctdb, opcode, indata, outdata);
 303
 304         case CTDB_CONTROL_RELOAD_NODES_FILE:
 305                 CHECK_CONTROL_DATA_SIZE(0);
 306                 return ctdb_control_reload_nodes_file(ctdb, opcode);
 307
 308         case CTDB_CONTROL_SET_DB_STICKY: {
 309                 uint32_t db_id;
 310                 struct ctdb_db_context *ctdb_db;
 311
 312                 CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
 313                 db_id = *(uint32_t *)indata.dptr;
 314                 ctdb_db = find_ctdb_db(ctdb, db_id);
 315                 if (ctdb_db == NULL) return -1;
 316                 return ctdb_set_db_sticky(ctdb, ctdb_db);
 317         }
 318
 319         case CTDB_CONTROL_SETVNNMAP:
 320                 return ctdb_control_setvnnmap(ctdb, opcode, indata, outdata);
 321
 322         case CTDB_CONTROL_PULL_DB:
 323                 return control_not_implemented("PULL_DB", NULL);
 324
 325         case CTDB_CONTROL_SET_DMASTER:
 326                 return control_not_implemented("SET_DMASTER", NULL);
 327
 328         case CTDB_CONTROL_PUSH_DB:
 329                 return control_not_implemented("PUSH_DB", NULL);
 330
 331         case CTDB_CONTROL_GET_RECMODE: {
 332                 return ctdb->recovery_mode;
 333         }
 334
 335         case CTDB_CONTROL_SET_RECMASTER:
 336                 return control_not_implemented("SET_RECMASTER", NULL);
 337
 338         case CTDB_CONTROL_GET_RECMASTER:
 339                 return control_not_implemented("GET_RECMASTER", NULL);
 340
 341         case CTDB_CONTROL_GET_PID:
 342                 return getpid();
 343
 344         case CTDB_CONTROL_GET_PNN:
 345                 return ctdb->pnn;
 346
 347         case CTDB_CONTROL_PING:
 348                 CHECK_CONTROL_DATA_SIZE(0);
 349                 return ctdb->num_clients;
 350
 351         case CTDB_CONTROL_GET_RUNSTATE:
 352                 CHECK_CONTROL_DATA_SIZE(0);
 353                 outdata->dptr = (uint8_t *)&ctdb->runstate;
 354                 outdata->dsize = sizeof(uint32_t);
 355                 return 0;
 356
 357
 358         case CTDB_CONTROL_SET_DB_READONLY: {
 359                 uint32_t db_id;
 360                 struct ctdb_db_context *ctdb_db;
 361
 362                 CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
 363                 db_id = *(uint32_t *)indata.dptr;
 364                 ctdb_db = find_ctdb_db(ctdb, db_id);
 365                 if (ctdb_db == NULL) return -1;
 366                 return ctdb_set_db_readonly(ctdb, ctdb_db);
 367         }
 368         case CTDB_CONTROL_GET_DBNAME: {
 369                 uint32_t db_id;
 370                 struct ctdb_db_context *ctdb_db;
 371
 372                 CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
 373                 db_id = *(uint32_t *)indata.dptr;
 374                 ctdb_db = find_ctdb_db(ctdb, db_id);
 375                 if (ctdb_db == NULL) return -1;
 376                 outdata->dptr = discard_const(ctdb_db->db_name);
 377                 outdata->dsize = strlen(ctdb_db->db_name)+1;
 378                 return 0;
 379         }
 380
 381         case CTDB_CONTROL_GETDBPATH: {
 382                 uint32_t db_id;
 383                 struct ctdb_db_context *ctdb_db;
 384
 385                 CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
 386                 db_id = *(uint32_t *)indata.dptr;
 387                 ctdb_db = find_ctdb_db(ctdb, db_id);
 388                 if (ctdb_db == NULL) return -1;
 389                 outdata->dptr = discard_const(ctdb_db->db_path);
 390                 outdata->dsize = strlen(ctdb_db->db_path)+1;
 391                 return 0;
 392         }
 393
 394         case CTDB_CONTROL_DB_ATTACH:
 395           return ctdb_control_db_attach(ctdb,
 396                                         indata,
 397                                         outdata,
 398                                         0,
 399                                         srcnode,
 400                                         client_id,
 401                                         c,
 402                                         async_reply);
 403
 404         case CTDB_CONTROL_DB_ATTACH_PERSISTENT:
 405           return ctdb_control_db_attach(ctdb,
 406                                         indata,
 407                                         outdata,
 408                                         CTDB_DB_FLAGS_PERSISTENT,
 409                                         srcnode,
 410                                         client_id,
 411                                         c,
 412                                         async_reply);
 413
 414         case CTDB_CONTROL_DB_ATTACH_REPLICATED:
 415           return ctdb_control_db_attach(ctdb,
 416                                         indata,
 417                                         outdata,
 418                                         CTDB_DB_FLAGS_REPLICATED,
 419                                         srcnode,
 420                                         client_id,
 421                                         c,
 422                                         async_reply);
 423
 424         case CTDB_CONTROL_SET_CALL:
 425                 return control_not_implemented("SET_CALL", NULL);
 426
 427         case CTDB_CONTROL_TRAVERSE_START:
 428                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_traverse_start));
 429                 return ctdb_control_traverse_start(ctdb, indata, outdata, srcnode, client_id);
 430
 431         case CTDB_CONTROL_TRAVERSE_START_EXT:
 432                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_traverse_start_ext));
 433                 return ctdb_control_traverse_start_ext(ctdb, indata, outdata, srcnode, client_id);
 434
 435         case CTDB_CONTROL_TRAVERSE_ALL:
 436                 return ctdb_control_traverse_all(ctdb, indata, outdata);
 437
 438         case CTDB_CONTROL_TRAVERSE_ALL_EXT:
 439                 return ctdb_control_traverse_all_ext(ctdb, indata, outdata);
 440
 441         case CTDB_CONTROL_TRAVERSE_DATA:
 442                 return ctdb_control_traverse_data(ctdb, indata, outdata);
 443
 444         case CTDB_CONTROL_TRAVERSE_KILL:
 445                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_traverse_start));
 446                 return ctdb_control_traverse_kill(ctdb, indata, outdata, srcnode);
 447
 448         case CTDB_CONTROL_REGISTER_SRVID:
 449                 return daemon_register_message_handler(ctdb, client_id, srvid);
 450
 451         case CTDB_CONTROL_DEREGISTER_SRVID:
 452                 return daemon_deregister_message_handler(ctdb, client_id, srvid);
 453
 454         case CTDB_CONTROL_CHECK_SRVIDS:
 455                 return control_not_implemented("CHECK_SRVIDS", NULL);
 456
 457         case CTDB_CONTROL_ENABLE_SEQNUM:
 458                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 459                 return ctdb_ltdb_enable_seqnum(ctdb, *(uint32_t *)indata.dptr);
 460
 461         case CTDB_CONTROL_UPDATE_SEQNUM:
 462                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 463                 return ctdb_ltdb_update_seqnum(ctdb, *(uint32_t *)indata.dptr, srcnode);
 464
 465         case CTDB_CONTROL_FREEZE:
 466                 CHECK_CONTROL_DATA_SIZE(0);
 467                 return ctdb_control_freeze(ctdb, c, async_reply);
 468
 469         case CTDB_CONTROL_THAW:
 470                 return control_not_implemented("THAW", NULL);
 471
 472         case CTDB_CONTROL_SET_RECMODE:
 473                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 474                 return ctdb_control_set_recmode(ctdb, c, indata, async_reply, errormsg);
 475
 476         case CTDB_CONTROL_GET_MONMODE:
 477                 return control_not_implemented("GET_MONMODE", NULL);
 478
 479         case CTDB_CONTROL_ENABLE_MONITOR:
 480                 return control_not_implemented("ENABLE_MONITOR", NULL);
 481
 482         case CTDB_CONTROL_RUN_EVENTSCRIPTS:
 483                 return control_not_implemented("RUN_EVENTSCRIPTS", NULL);
 484
 485         case CTDB_CONTROL_DISABLE_MONITOR:
 486                 return control_not_implemented("DISABLE_MONITOR", NULL);
 487
 488         case CTDB_CONTROL_SHUTDOWN:
 489                 DEBUG(DEBUG_NOTICE,("Received SHUTDOWN command.\n"));
 490                 ctdb_shutdown_sequence(ctdb, 0);
 491                 /* In case above returns due to duplicate shutdown */
 492                 return 0;
 493
 494         case CTDB_CONTROL_TAKEOVER_IPv4:
 495                 return control_not_implemented("TAKEOVER_IPv4", "TAKEOVER_IP");
 496
 497         case CTDB_CONTROL_TAKEOVER_IP:
 498                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_public_ip));
 499                 return ctdb_control_takeover_ip(ctdb, c, indata, async_reply);
 500
 501         case CTDB_CONTROL_RELEASE_IPv4:
 502                 return control_not_implemented("RELEASE_IPv4", "RELEASE_IP");
 503
 504         case CTDB_CONTROL_RELEASE_IP:
 505                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_public_ip));
 506                 return ctdb_control_release_ip(ctdb, c, indata, async_reply);
 507
 508         case CTDB_CONTROL_IPREALLOCATED:
 509                 CHECK_CONTROL_DATA_SIZE(0);
 510                 return ctdb_control_ipreallocated(ctdb, c, async_reply);
 511
 512         case CTDB_CONTROL_GET_PUBLIC_IPSv4:
 513                 return control_not_implemented("GET_PUBLIC_IPSv4",
 514                                                "GET_PUBLIC_IPS");
 515
 516         case CTDB_CONTROL_GET_PUBLIC_IPS:
 517                 CHECK_CONTROL_DATA_SIZE(0);
 518                 return ctdb_control_get_public_ips(ctdb, c, outdata);
 519
 520         case CTDB_CONTROL_TCP_CLIENT:
 521                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
 522                 return ctdb_control_tcp_client(ctdb, client_id, indata);
 523
 524         case CTDB_CONTROL_STARTUP:
 525                 CHECK_CONTROL_DATA_SIZE(0);
 526                 return ctdb_control_startup(ctdb, srcnode);
 527
 528         case CTDB_CONTROL_TCP_ADD:
 529                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
 530                 return ctdb_control_tcp_add(ctdb, indata, false);
 531
 532         case CTDB_CONTROL_TCP_ADD_DELAYED_UPDATE:
 533                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
 534                 return ctdb_control_tcp_add(ctdb, indata, true);
 535
 536         case CTDB_CONTROL_TCP_REMOVE:
 537                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
 538                 return ctdb_control_tcp_remove(ctdb, indata);
 539
 540         case CTDB_CONTROL_SET_TUNABLE:
 541                 return ctdb_control_set_tunable(ctdb, indata);
 542
 543         case CTDB_CONTROL_GET_TUNABLE:
 544                 return ctdb_control_get_tunable(ctdb, indata, outdata);
 545
 546         case CTDB_CONTROL_LIST_TUNABLES:
 547                 return ctdb_control_list_tunables(ctdb, outdata);
 548
 549         case CTDB_CONTROL_MODIFY_FLAGS:
 550                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_node_flag_change));
 551                 return ctdb_control_modflags(ctdb, indata);
 552
 553         case CTDB_CONTROL_KILL_TCP:
 554                 return control_not_implemented("KILL_TCP", NULL);
 555
 556         case CTDB_CONTROL_GET_TCP_TICKLE_LIST:
 557                 CHECK_CONTROL_DATA_SIZE(sizeof(ctdb_sock_addr));
 558                 return ctdb_control_get_tcp_tickle_list(ctdb, indata, outdata);
 559
 560         case CTDB_CONTROL_SET_TCP_TICKLE_LIST:
 561                 /* data size is verified in the called function */
 562                 return ctdb_control_set_tcp_tickle_list(ctdb, indata);
 563
 564         case CTDB_CONTROL_REGISTER_SERVER_ID:
 565                 return control_not_implemented("REGISTER_SERVER_ID", NULL);
 566
 567         case CTDB_CONTROL_UNREGISTER_SERVER_ID:
 568                 return control_not_implemented("UNREGISTER_SERVER_ID", NULL);
 569
 570         case CTDB_CONTROL_CHECK_SERVER_ID:
 571                 return control_not_implemented("CHECK_SERVER_ID", NULL);
 572
 573         case CTDB_CONTROL_GET_SERVER_ID_LIST:
 574                 return control_not_implemented("SERVER_ID_LIST", NULL);
 575
 576         case CTDB_CONTROL_PERSISTENT_STORE:
 577                 return control_not_implemented("PERSISTENT_STORE", NULL);
 578
 579         case CTDB_CONTROL_UPDATE_RECORD:
 580                 return ctdb_control_update_record(ctdb, c, indata, async_reply);
 581
 582         case CTDB_CONTROL_SEND_GRATUITOUS_ARP:
 583                 return ctdb_control_send_gratious_arp(ctdb, indata);
 584
 585         case CTDB_CONTROL_TRANSACTION_START:
 586                 return control_not_implemented("TRANSACTION_START", NULL);
 587
 588         case CTDB_CONTROL_TRANSACTION_COMMIT:
 589                 return control_not_implemented("TRANSACTION_COMMIT", NULL);
 590
 591         case CTDB_CONTROL_WIPE_DATABASE:
 592                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_transdb));
 593                 return ctdb_control_wipe_database(ctdb, indata);
 594
 595         case CTDB_CONTROL_UPTIME:
 596                 return ctdb_control_uptime(ctdb, outdata);
 597
 598         case CTDB_CONTROL_START_RECOVERY:
 599                 return ctdb_control_start_recovery(ctdb, c, async_reply);
 600
 601         case CTDB_CONTROL_END_RECOVERY:
 602                 return ctdb_control_end_recovery(ctdb, c, async_reply);
 603
 604         case CTDB_CONTROL_TRY_DELETE_RECORDS:
 605                 return ctdb_control_try_delete_records(ctdb, indata, outdata);
 606
 607         case CTDB_CONTROL_ADD_PUBLIC_IP:
 608                 return ctdb_control_add_public_address(ctdb, indata);
 609
 610         case CTDB_CONTROL_DEL_PUBLIC_IP:
 611                 return ctdb_control_del_public_address(ctdb, indata);
 612
 613         case CTDB_CONTROL_GET_CAPABILITIES:
 614                 return ctdb_control_get_capabilities(ctdb, outdata);
 615
 616         case CTDB_CONTROL_START_PERSISTENT_UPDATE:
 617                 return ctdb_control_start_persistent_update(ctdb, c, indata);
 618
 619         case CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE:
 620                 return ctdb_control_cancel_persistent_update(ctdb, c, indata);
 621
 622         case CTDB_CONTROL_TRANS2_COMMIT:
 623         case CTDB_CONTROL_TRANS2_COMMIT_RETRY:
 624                 return control_not_implemented("TRANS2_COMMIT", "TRANS3_COMMIT");
 625
 626         case CTDB_CONTROL_TRANS2_ERROR:
 627                 return control_not_implemented("TRANS2_ERROR", NULL);
 628
 629         case CTDB_CONTROL_TRANS2_FINISHED:
 630                 return control_not_implemented("TRANS2_FINISHED", NULL);
 631
 632         case CTDB_CONTROL_TRANS2_ACTIVE:
 633                 return control_not_implemented("TRANS2_ACTIVE", NULL);
 634
 635         case CTDB_CONTROL_TRANS3_COMMIT:
 636                 return ctdb_control_trans3_commit(ctdb, c, indata, async_reply);
 637
 638         case CTDB_CONTROL_RECD_PING:
 639                 CHECK_CONTROL_DATA_SIZE(0);
 640                 return ctdb_control_recd_ping(ctdb);
 641
 642         case CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS:
 643                 return control_not_implemented("GET_EVENT_SCRIPT_STATUS", NULL);
 644
 645         case CTDB_CONTROL_RECD_RECLOCK_LATENCY:
 646                 CHECK_CONTROL_DATA_SIZE(sizeof(double));
 647                 CTDB_UPDATE_RECLOCK_LATENCY(ctdb, "recd reclock", reclock.recd, *((double *)indata.dptr));
 648                 return 0;
 649         case CTDB_CONTROL_GET_RECLOCK_FILE:
 650                 CHECK_CONTROL_DATA_SIZE(0);
 651                 if (ctdb->recovery_lock != NULL) {
 652                         outdata->dptr  = discard_const(ctdb->recovery_lock);
 653                         outdata->dsize = strlen(ctdb->recovery_lock) + 1;
 654                 }
 655                 return 0;
 656         case CTDB_CONTROL_SET_RECLOCK_FILE:
 657                 return control_not_implemented("SET_RECLOCK", NULL);
 658
 659         case CTDB_CONTROL_STOP_NODE:
 660                 CHECK_CONTROL_DATA_SIZE(0);
 661                 return ctdb_control_stop_node(ctdb);
 662
 663         case CTDB_CONTROL_CONTINUE_NODE:
 664                 CHECK_CONTROL_DATA_SIZE(0);
 665                 return ctdb_control_continue_node(ctdb);
 666
 667         case CTDB_CONTROL_SET_NATGWSTATE:
 668                 return control_not_implemented("SET_NATGWSTATE", NULL);
 669
 670         case CTDB_CONTROL_SET_LMASTERROLE: {
 671                 uint32_t lmasterrole;
 672
 673                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 674                 lmasterrole = *(uint32_t *)indata.dptr;
 675                 if (lmasterrole == 0) {
 676                         ctdb->capabilities &= ~CTDB_CAP_LMASTER;
 677                 } else {
 678                         ctdb->capabilities |= CTDB_CAP_LMASTER;
 679                 }
 680                 return 0;
 681         }
 682
 683         case CTDB_CONTROL_SET_RECMASTERROLE: {
 684                 uint32_t recmasterrole;
 685
 686                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 687                 recmasterrole = *(uint32_t *)indata.dptr;
 688                 if (recmasterrole == 0) {
 689                         ctdb->capabilities &= ~CTDB_CAP_RECMASTER;
 690                 } else {
 691                         ctdb->capabilities |= CTDB_CAP_RECMASTER;
 692                 }
 693                 return 0;
 694         }
 695
 696         case CTDB_CONTROL_ENABLE_SCRIPT:
 697                 return control_not_implemented("ENABLE_SCRIPT", NULL);
 698
 699         case CTDB_CONTROL_DISABLE_SCRIPT:
 700                 return control_not_implemented("DISABLE_SCRIPT", NULL);
 701
 702         case CTDB_CONTROL_SET_BAN_STATE:
 703                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_ban_state));
 704                 return ctdb_control_set_ban_state(ctdb, indata);
 705
 706         case CTDB_CONTROL_GET_BAN_STATE:
 707                 CHECK_CONTROL_DATA_SIZE(0);
 708                 return ctdb_control_get_ban_state(ctdb, outdata);
 709
 710         case CTDB_CONTROL_SET_DB_PRIORITY:
 711                 return control_not_implemented("SET_DB_PRIORITY", NULL);
 712
 713         case CTDB_CONTROL_GET_DB_PRIORITY:
 714                 return control_not_implemented("GET_DB_PRIORITY", NULL);
 715
 716         case CTDB_CONTROL_TRANSACTION_CANCEL:
 717                 return control_not_implemented("TRANSACTION_CANCEL", NULL);
 718
 719         case CTDB_CONTROL_REGISTER_NOTIFY:
 720                 return ctdb_control_register_notify(ctdb, client_id, indata);
 721
 722         case CTDB_CONTROL_DEREGISTER_NOTIFY:
 723                 CHECK_CONTROL_DATA_SIZE(sizeof(uint64_t));
 724                 return ctdb_control_deregister_notify(ctdb, client_id, indata);
 725
 726         case CTDB_CONTROL_GET_LOG:
 727                 return control_not_implemented("GET_LOG", NULL);
 728
 729         case CTDB_CONTROL_CLEAR_LOG:
 730                 return control_not_implemented("CLEAR_LOG", NULL);
 731
 732         case CTDB_CONTROL_GET_DB_SEQNUM:
 733                 CHECK_CONTROL_DATA_SIZE(sizeof(uint64_t));
 734                 return ctdb_control_get_db_seqnum(ctdb, indata, outdata);
 735
 736         case CTDB_CONTROL_DB_SET_HEALTHY:
 737                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 738                 return ctdb_control_db_set_healthy(ctdb, indata);
 739
 740         case CTDB_CONTROL_DB_GET_HEALTH:
 741                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 742                 return ctdb_control_db_get_health(ctdb, indata, outdata);
 743
 744         case CTDB_CONTROL_GET_PUBLIC_IP_INFO:
 745                 CHECK_CONTROL_DATA_SIZE(sizeof(ctdb_sock_addr));
 746                 return ctdb_control_get_public_ip_info(ctdb, c, indata, outdata);
 747
 748         case CTDB_CONTROL_GET_IFACES:
 749                 CHECK_CONTROL_DATA_SIZE(0);
 750                 return ctdb_control_get_ifaces(ctdb, c, outdata);
 751
 752         case CTDB_CONTROL_SET_IFACE_LINK_STATE:
 753                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_iface));
 754                 return ctdb_control_set_iface_link(ctdb, c, indata);
 755
 756         case CTDB_CONTROL_GET_STAT_HISTORY:
 757                 CHECK_CONTROL_DATA_SIZE(0);
 758                 return ctdb_control_get_stat_history(ctdb, c, outdata);
 759
 760         case CTDB_CONTROL_SCHEDULE_FOR_DELETION: {
 761                 struct ctdb_control_schedule_for_deletion *d;
 762                 size_t size = offsetof(struct ctdb_control_schedule_for_deletion, key);
 763                 CHECK_CONTROL_MIN_DATA_SIZE(size);
 764                 d = (struct ctdb_control_schedule_for_deletion *)indata.dptr;
 765                 size += d->keylen;
 766                 CHECK_CONTROL_DATA_SIZE(size);
 767                 return ctdb_control_schedule_for_deletion(ctdb, indata);
 768         }
 769         case CTDB_CONTROL_GET_DB_STATISTICS:
 770                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 771                 return ctdb_control_get_db_statistics(ctdb, *(uint32_t *)indata.dptr, outdata);
 772
 773         case CTDB_CONTROL_RELOAD_PUBLIC_IPS:
 774                 CHECK_CONTROL_DATA_SIZE(0);
 775                 return ctdb_control_reload_public_ips(ctdb, c, async_reply);
 776
 777         case CTDB_CONTROL_RECEIVE_RECORDS:
 778                 return control_not_implemented("RECEIVE_RECORDS", NULL);
 779
 780         case CTDB_CONTROL_DB_DETACH:
 781                 return ctdb_control_db_detach(ctdb, indata, client_id);
 782
 783         case CTDB_CONTROL_DB_FREEZE:
 784                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 785                 return ctdb_control_db_freeze(ctdb, c, *(uint32_t *)indata.dptr,
 786                                               async_reply);
 787
 788         case CTDB_CONTROL_DB_THAW:
 789                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 790                 return ctdb_control_db_thaw(ctdb, *(uint32_t *)indata.dptr);
 791
 792         case CTDB_CONTROL_DB_TRANSACTION_START:
 793                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_transdb));
 794                 return ctdb_control_db_transaction_start(ctdb, indata);
 795
 796         case CTDB_CONTROL_DB_TRANSACTION_COMMIT:
 797                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_transdb));
 798                 return ctdb_control_db_transaction_commit(ctdb, indata);
 799
 800         case CTDB_CONTROL_DB_TRANSACTION_CANCEL:
 801                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 802                 return ctdb_control_db_transaction_cancel(ctdb, indata);
 803
 804         case CTDB_CONTROL_DB_PULL:
 805                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_pulldb_ext));
 806                 return ctdb_control_db_pull(ctdb, c, indata, outdata);
 807
 808         case CTDB_CONTROL_DB_PUSH_START:
 809                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_pulldb_ext));
 810                 return ctdb_control_db_push_start(ctdb, indata);
 811
 812         case CTDB_CONTROL_DB_PUSH_CONFIRM:
 813                 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
 814                 return ctdb_control_db_push_confirm(ctdb, indata, outdata);
 815
 816         case CTDB_CONTROL_DB_OPEN_FLAGS: {
 817                 uint32_t db_id;
 818                 struct ctdb_db_context *ctdb_db;
 819                 int tdb_flags;
 820
 821                 CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
 822                 db_id = *(uint32_t *)indata.dptr;
 823                 ctdb_db = find_ctdb_db(ctdb, db_id);
 824                 if (ctdb_db == NULL) {
 825                         return -1;
 826                 }
 827
 828                 tdb_flags = tdb_get_flags(ctdb_db->ltdb->tdb);
 829
 830                 outdata->dptr = talloc_size(outdata, sizeof(tdb_flags));
 831                 if (outdata->dptr == NULL) {
 832                         return -1;
 833                 }
 834
 835                 outdata->dsize = sizeof(tdb_flags);
 836                 memcpy(outdata->dptr, &tdb_flags, outdata->dsize);
 837                 return 0;
 838         }
 839
 840         case CTDB_CONTROL_CHECK_PID_SRVID:
 841                 CHECK_CONTROL_DATA_SIZE((sizeof(pid_t) + sizeof(uint64_t)));
 842                 return ctdb_control_check_pid_srvid(ctdb, indata);
 843
 844         case CTDB_CONTROL_TUNNEL_REGISTER:
 845                 return ctdb_control_tunnel_register(ctdb, client_id, srvid);
 846
 847         case CTDB_CONTROL_TUNNEL_DEREGISTER:
 848                 return ctdb_control_tunnel_deregister(ctdb, client_id, srvid);
 849
 850         case CTDB_CONTROL_VACUUM_FETCH:
 851                 return ctdb_control_vacuum_fetch(ctdb, indata);
 852
 853         case CTDB_CONTROL_DB_VACUUM: {
 854                 struct ctdb_db_vacuum db_vacuum;
 855
 856                 CHECK_CONTROL_DATA_SIZE(ctdb_db_vacuum_len(&db_vacuum));
 857                 return ctdb_control_db_vacuum(ctdb, c, indata, async_reply);
 858         }
 859         case CTDB_CONTROL_ECHO_DATA: {
 860                 return ctdb_control_echo_data(ctdb, c, indata, async_reply);
 861         }
 862
 863         case CTDB_CONTROL_DISABLE_NODE:
 864                 CHECK_CONTROL_DATA_SIZE(0);
 865                 return ctdb_control_disable_node(ctdb);
 866
 867         case CTDB_CONTROL_ENABLE_NODE:
 868                 CHECK_CONTROL_DATA_SIZE(0);
 869                 return ctdb_control_enable_node(ctdb);
 870
 871         case CTDB_CONTROL_TCP_CLIENT_DISCONNECTED:
 872                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
 873                 return ctdb_control_tcp_client_disconnected(ctdb, client_id, indata);
 874
 875         case CTDB_CONTROL_TCP_CLIENT_PASSED:
 876                 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
 877                 return ctdb_control_tcp_client_passed(ctdb, client_id, indata);
 878
 879         case CTDB_CONTROL_START_IPREALLOCATE:
 880                 CHECK_CONTROL_DATA_SIZE(0);
 881                 return ctdb_control_start_ipreallocate(ctdb, c, async_reply);
 882
 883         default:
 884                 DEBUG(DEBUG_CRIT,(__location__ " Unknown CTDB control opcode %u\n", opcode));
 885                 return -1;
 886         }
 887 }
 888
 889 /*
 890   send a reply for a ctdb control
 891  */
 892 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control_old *c,
 893                                 TDB_DATA *outdata, int32_t status, const char *errormsg)
 894 {
 895         struct ctdb_reply_control_old *r;
 896         size_t len;
 897
 898         /* some controls send no reply */
 899         if (c->flags & CTDB_CTRL_FLAG_NOREPLY) {
 900                 return;
 901         }
 902
 903         len = offsetof(struct ctdb_reply_control_old, data) + (outdata?outdata->dsize:0);
 904         if (errormsg) {
 905                 len += strlen(errormsg);
 906         }
 907         r = ctdb_transport_allocate(ctdb, ctdb, CTDB_REPLY_CONTROL, len, struct ctdb_reply_control_old);
 908         if (r == NULL) {
 909                 DEBUG(DEBUG_ERR,(__location__ "Unable to allocate transport - OOM or transport is down\n"));
 910                 return;
 911         }
 912
 913         r->hdr.destnode     = c->hdr.srcnode;
 914         r->hdr.reqid        = c->hdr.reqid;
 915         r->status           = status;
 916         r->datalen          = outdata?outdata->dsize:0;
 917         if (outdata && outdata->dsize) {
 918                 memcpy(&r->data[0], outdata->dptr, outdata->dsize);
 919         }
 920         if (errormsg) {
 921                 r->errorlen = strlen(errormsg);
 922                 memcpy(&r->data[r->datalen], errormsg, r->errorlen);
 923         }
 924
 925         ctdb_queue_packet_opcode(ctdb, &r->hdr, c->opcode);
 926
 927         talloc_free(r);
 928 }
 929
 930 /*
 931   called when a CTDB_REQ_CONTROL packet comes in
 932 */
 933 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr)
 934 {
 935         struct ctdb_req_control_old *c = (struct ctdb_req_control_old *)hdr;
 936         TDB_DATA data, *outdata;
 937         int32_t status;
 938         bool async_reply = false;
 939         const char *errormsg = NULL;
 940
 941         data.dptr = &c->data[0];
 942         data.dsize = c->datalen;
 943
 944         outdata = talloc_zero(c, TDB_DATA);
 945
 946         status = ctdb_control_dispatch(ctdb, c, data, outdata, hdr->srcnode,
 947                                        &errormsg, &async_reply);
 948
 949         if (!async_reply) {
 950                 ctdb_request_control_reply(ctdb, c, outdata, status, errormsg);
 951         }
 952 }
 953
 954 /*
 955   called when a CTDB_REPLY_CONTROL packet comes in
 956 */
 957 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr)
 958 {
 959         struct ctdb_reply_control_old *c = (struct ctdb_reply_control_old *)hdr;
 960         TDB_DATA data;
 961         struct ctdb_control_state *state;
 962         const char *errormsg = NULL;
 963
 964         state = reqid_find(ctdb->idr, hdr->reqid, struct ctdb_control_state);
 965         if (state == NULL) {
 966                 DEBUG(DEBUG_ERR,("pnn %u Invalid reqid %u in ctdb_reply_control\n",
 967                          ctdb->pnn, hdr->reqid));
 968                 return;
 969         }
 970
 971         if (hdr->reqid != state->reqid) {
 972                 /* we found a record  but it was the wrong one */
 973                 DEBUG(DEBUG_ERR, ("Dropped orphaned control reply with reqid:%u\n", hdr->reqid));
 974                 return;
 975         }
 976
 977         data.dptr = &c->data[0];
 978         data.dsize = c->datalen;
 979         if (c->errorlen) {
 980                 errormsg = talloc_strndup(state,
 981                                           (char *)&c->data[c->datalen], c->errorlen);
 982         }
 983
 984         /* make state a child of the packet, so it goes away when the packet
 985            is freed. */
 986         talloc_steal(hdr, state);
 987
 988         state->callback(ctdb, c->status, data, errormsg, state->private_data);
 989 }
 990
 991 static int ctdb_control_destructor(struct ctdb_control_state *state)
 992 {
 993         reqid_remove(state->ctdb->idr, state->reqid);
 994         return 0;
 995 }
 996
 997 /*
 998   handle a timeout of a control
 999  */
1000 static void ctdb_control_timeout(struct tevent_context *ev,
1001                                  struct tevent_timer *te,
1002                                  struct timeval t, void *private_data)
1003 {
1004         struct ctdb_control_state *state = talloc_get_type(private_data, struct ctdb_control_state);
1005         TALLOC_CTX *tmp_ctx = talloc_new(ev);
1006
1007         CTDB_INCREMENT_STAT(state->ctdb, timeouts.control);
1008
1009         talloc_steal(tmp_ctx, state);
1010
1011         state->callback(state->ctdb, -1, tdb_null,
1012                         "ctdb_control timed out",
1013                         state->private_data);
1014         talloc_free(tmp_ctx);
1015 }
1016
1017
1018 /*
1019   send a control message to a node
1020  */
1021 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
1022                              uint64_t srvid, uint32_t opcode, uint32_t client_id,
1023                              uint32_t flags,
1024                              TDB_DATA data,
1025                              ctdb_control_callback_fn_t callback,
1026                              void *private_data)
1027 {
1028         struct ctdb_req_control_old *c;
1029         struct ctdb_control_state *state;
1030         size_t len;
1031
1032         if (ctdb->methods == NULL) {
1033                 DEBUG(DEBUG_INFO,(__location__ " Failed to send control. Transport is DOWN\n"));
1034                 return -1;
1035         }
1036
1037         if (((destnode == CTDB_BROADCAST_ACTIVE) ||
1038              (destnode == CTDB_BROADCAST_ALL) ||
1039              (destnode == CTDB_BROADCAST_CONNECTED)) &&
1040             !(flags & CTDB_CTRL_FLAG_NOREPLY)) {
1041                 DEBUG(DEBUG_CRIT,("Attempt to broadcast control without NOREPLY\n"));
1042                 return -1;
1043         }
1044
1045         if (destnode != CTDB_BROADCAST_ACTIVE &&
1046             destnode != CTDB_BROADCAST_ALL &&
1047             destnode != CTDB_BROADCAST_CONNECTED &&
1048             (!ctdb_validate_pnn(ctdb, destnode) ||
1049              (ctdb->nodes[destnode]->flags & NODE_FLAGS_DISCONNECTED))) {
1050                 if (!(flags & CTDB_CTRL_FLAG_NOREPLY)) {
1051                         callback(ctdb, -1, tdb_null, "ctdb_control to disconnected node", private_data);
1052                 }
1053                 return 0;
1054         }
1055
1056         /* the state is made a child of private_data if possible. This means any reply
1057            will be discarded if the private_data goes away */
1058         state = talloc(private_data?private_data:ctdb, struct ctdb_control_state);
1059         CTDB_NO_MEMORY(ctdb, state);
1060
1061         state->reqid = reqid_new(ctdb->idr, state);
1062         state->callback = callback;
1063         state->private_data = private_data;
1064         state->ctdb = ctdb;
1065         state->flags = flags;
1066
1067         talloc_set_destructor(state, ctdb_control_destructor);
1068
1069         len = offsetof(struct ctdb_req_control_old, data) + data.dsize;
1070         c = ctdb_transport_allocate(ctdb, state, CTDB_REQ_CONTROL, len,
1071                                     struct ctdb_req_control_old);
1072         CTDB_NO_MEMORY(ctdb, c);
1073         talloc_set_name_const(c, "ctdb_req_control packet");
1074
1075         c->hdr.destnode     = destnode;
1076         c->hdr.reqid        = state->reqid;
1077         c->opcode           = opcode;
1078         c->client_id        = client_id;
1079         c->flags            = flags;
1080         c->srvid            = srvid;
1081         c->datalen          = data.dsize;
1082         if (data.dsize) {
1083                 memcpy(&c->data[0], data.dptr, data.dsize);
1084         }
1085
1086         ctdb_queue_packet(ctdb, &c->hdr);
1087
1088         if (flags & CTDB_CTRL_FLAG_NOREPLY) {
1089                 talloc_free(state);
1090                 return 0;
1091         }
1092
1093         if (ctdb->tunable.control_timeout) {
1094                 tevent_add_timer(ctdb->ev, state,
1095                                  timeval_current_ofs(ctdb->tunable.control_timeout, 0),
1096                                  ctdb_control_timeout, state);
1097         }
1098
1099         talloc_free(c);
1100         return 0;
1101 }