2 ctdb_control protocol code
4 Copyright (C) Andrew Tridgell 2007
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.
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.
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/>.
20 #include "lib/events/events.h"
21 #include "lib/tdb/include/tdb.h"
22 #include "system/network.h"
23 #include "system/filesys.h"
24 #include "system/wait.h"
25 #include "../include/ctdb_private.h"
26 #include "lib/util/dlinklist.h"
30 struct ctdb_control_state {
31 struct ctdb_context *ctdb;
33 ctdb_control_callback_fn_t callback;
40 dump talloc memory hierarchy, returning it as a blob to the client
42 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata)
44 /* dump to a file, then send the file as a blob */
49 DEBUG(DEBUG_ERR,(__location__ " Unable to open tmpfile - %s\n", strerror(errno)));
52 talloc_report_full(NULL, f);
55 outdata->dptr = talloc_size(outdata, fsize);
56 CTDB_NO_MEMORY(ctdb, outdata->dptr);
57 outdata->dsize = fread(outdata->dptr, 1, fsize, f);
59 if (outdata->dsize != fsize) {
60 DEBUG(DEBUG_ERR,(__location__ " Unable to read tmpfile\n"));
68 process a control request
70 static int32_t ctdb_control_dispatch(struct ctdb_context *ctdb,
71 struct ctdb_req_control *c,
73 TDB_DATA *outdata, uint32_t srcnode,
74 const char **errormsg,
77 uint32_t opcode = c->opcode;
78 uint64_t srvid = c->srvid;
79 uint32_t client_id = c->client_id;
82 case CTDB_CONTROL_PROCESS_EXISTS: {
83 CHECK_CONTROL_DATA_SIZE(sizeof(pid_t));
84 return ctdb_control_process_exists(ctdb, *(pid_t *)indata.dptr);
87 case CTDB_CONTROL_SET_DEBUG: {
88 CHECK_CONTROL_DATA_SIZE(sizeof(int32_t));
89 LogLevel = *(int32_t *)indata.dptr;
93 case CTDB_CONTROL_GET_DEBUG: {
94 CHECK_CONTROL_DATA_SIZE(0);
95 outdata->dptr = (uint8_t *)&LogLevel;
96 outdata->dsize = sizeof(LogLevel);
100 case CTDB_CONTROL_STATISTICS: {
102 CHECK_CONTROL_DATA_SIZE(0);
103 ctdb->statistics.memory_used = talloc_total_size(NULL);
104 ctdb->statistics.frozen = 0;
105 for (i=1; i<= NUM_DB_PRIORITIES; i++) {
106 if (ctdb->freeze_mode[i] == CTDB_FREEZE_FROZEN) {
107 ctdb->statistics.frozen = 1;
110 ctdb->statistics.recovering = (ctdb->recovery_mode == CTDB_RECOVERY_ACTIVE);
111 ctdb->statistics.statistics_current_time = timeval_current();
113 outdata->dptr = (uint8_t *)&ctdb->statistics;
114 outdata->dsize = sizeof(ctdb->statistics);
118 case CTDB_CONTROL_GET_ALL_TUNABLES: {
119 CHECK_CONTROL_DATA_SIZE(0);
120 outdata->dptr = (uint8_t *)&ctdb->tunable;
121 outdata->dsize = sizeof(ctdb->tunable);
125 case CTDB_CONTROL_DUMP_MEMORY: {
126 CHECK_CONTROL_DATA_SIZE(0);
127 return ctdb_dump_memory(ctdb, outdata);
130 case CTDB_CONTROL_STATISTICS_RESET: {
131 CHECK_CONTROL_DATA_SIZE(0);
132 ZERO_STRUCT(ctdb->statistics);
133 ctdb->statistics.statistics_start_time = timeval_current();
137 case CTDB_CONTROL_GETVNNMAP:
138 return ctdb_control_getvnnmap(ctdb, opcode, indata, outdata);
140 case CTDB_CONTROL_GET_DBMAP:
141 return ctdb_control_getdbmap(ctdb, opcode, indata, outdata);
143 case CTDB_CONTROL_GET_NODEMAPv4:
144 return ctdb_control_getnodemapv4(ctdb, opcode, indata, outdata);
146 case CTDB_CONTROL_GET_NODEMAP:
147 return ctdb_control_getnodemap(ctdb, opcode, indata, outdata);
149 case CTDB_CONTROL_RELOAD_NODES_FILE:
150 CHECK_CONTROL_DATA_SIZE(0);
151 return ctdb_control_reload_nodes_file(ctdb, opcode);
153 case CTDB_CONTROL_SETVNNMAP:
154 return ctdb_control_setvnnmap(ctdb, opcode, indata, outdata);
156 case CTDB_CONTROL_PULL_DB:
157 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_control_pulldb));
158 return ctdb_control_pull_db(ctdb, indata, outdata);
160 case CTDB_CONTROL_SET_DMASTER:
161 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_control_set_dmaster));
162 return ctdb_control_set_dmaster(ctdb, indata);
164 case CTDB_CONTROL_PUSH_DB:
165 return ctdb_control_push_db(ctdb, indata);
167 case CTDB_CONTROL_GET_RECMODE: {
169 if (ctdb->recovery_mode == CTDB_RECOVERY_ACTIVE) {
170 return CTDB_RECOVERY_ACTIVE;
172 for (i=1; i<=NUM_DB_PRIORITIES; i++) {
173 if (ctdb->freeze_mode[i] == CTDB_FREEZE_FROZEN) {
174 return CTDB_RECOVERY_ACTIVE;
177 return CTDB_RECOVERY_NORMAL;
180 case CTDB_CONTROL_SET_RECMASTER: {
181 return ctdb_control_set_recmaster(ctdb, opcode, indata);
184 case CTDB_CONTROL_GET_RECMASTER:
185 return ctdb->recovery_master;
187 case CTDB_CONTROL_GET_PID:
190 case CTDB_CONTROL_GET_PNN:
193 case CTDB_CONTROL_PING:
194 CHECK_CONTROL_DATA_SIZE(0);
195 return ctdb->statistics.num_clients;
197 case CTDB_CONTROL_GET_DBNAME: {
199 struct ctdb_db_context *ctdb_db;
201 CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
202 db_id = *(uint32_t *)indata.dptr;
203 ctdb_db = find_ctdb_db(ctdb, db_id);
204 if (ctdb_db == NULL) return -1;
205 outdata->dptr = discard_const(ctdb_db->db_name);
206 outdata->dsize = strlen(ctdb_db->db_name)+1;
210 case CTDB_CONTROL_GETDBPATH: {
212 struct ctdb_db_context *ctdb_db;
214 CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
215 db_id = *(uint32_t *)indata.dptr;
216 ctdb_db = find_ctdb_db(ctdb, db_id);
217 if (ctdb_db == NULL) return -1;
218 outdata->dptr = discard_const(ctdb_db->db_path);
219 outdata->dsize = strlen(ctdb_db->db_path)+1;
223 case CTDB_CONTROL_DB_ATTACH:
224 return ctdb_control_db_attach(ctdb, indata, outdata, srvid, false);
226 case CTDB_CONTROL_DB_ATTACH_PERSISTENT:
227 return ctdb_control_db_attach(ctdb, indata, outdata, srvid, true);
229 case CTDB_CONTROL_SET_CALL: {
230 struct ctdb_control_set_call *sc =
231 (struct ctdb_control_set_call *)indata.dptr;
232 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_control_set_call));
233 return ctdb_daemon_set_call(ctdb, sc->db_id, sc->fn, sc->id);
236 case CTDB_CONTROL_TRAVERSE_START:
237 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_traverse_start));
238 return ctdb_control_traverse_start(ctdb, indata, outdata, srcnode, client_id);
240 case CTDB_CONTROL_TRAVERSE_ALL:
241 return ctdb_control_traverse_all(ctdb, indata, outdata);
243 case CTDB_CONTROL_TRAVERSE_DATA:
244 return ctdb_control_traverse_data(ctdb, indata, outdata);
246 case CTDB_CONTROL_TRAVERSE_KILL:
247 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_traverse_start));
248 return ctdb_control_traverse_kill(ctdb, indata, outdata, srcnode);
250 case CTDB_CONTROL_REGISTER_SRVID:
251 return daemon_register_message_handler(ctdb, client_id, srvid);
253 case CTDB_CONTROL_DEREGISTER_SRVID:
254 return daemon_deregister_message_handler(ctdb, client_id, srvid);
256 case CTDB_CONTROL_ENABLE_SEQNUM:
257 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
258 return ctdb_ltdb_enable_seqnum(ctdb, *(uint32_t *)indata.dptr);
260 case CTDB_CONTROL_UPDATE_SEQNUM:
261 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
262 return ctdb_ltdb_update_seqnum(ctdb, *(uint32_t *)indata.dptr, srcnode);
264 case CTDB_CONTROL_FREEZE:
265 CHECK_CONTROL_DATA_SIZE(0);
266 return ctdb_control_freeze(ctdb, c, async_reply);
268 case CTDB_CONTROL_THAW:
269 CHECK_CONTROL_DATA_SIZE(0);
270 return ctdb_control_thaw(ctdb, (uint32_t)c->srvid);
272 case CTDB_CONTROL_SET_RECMODE:
273 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
274 return ctdb_control_set_recmode(ctdb, c, indata, async_reply, errormsg);
276 case CTDB_CONTROL_GET_MONMODE:
277 CHECK_CONTROL_DATA_SIZE(0);
278 return ctdb_monitoring_mode(ctdb);
280 case CTDB_CONTROL_ENABLE_MONITOR:
281 CHECK_CONTROL_DATA_SIZE(0);
282 ctdb_enable_monitoring(ctdb);
285 case CTDB_CONTROL_RUN_EVENTSCRIPTS:
286 return ctdb_run_eventscripts(ctdb, c, indata, async_reply);
288 case CTDB_CONTROL_DISABLE_MONITOR:
289 CHECK_CONTROL_DATA_SIZE(0);
290 ctdb_disable_monitoring(ctdb);
293 case CTDB_CONTROL_SHUTDOWN:
294 ctdb_stop_recoverd(ctdb);
295 ctdb_stop_keepalive(ctdb);
296 ctdb_stop_monitoring(ctdb);
297 ctdb_release_all_ips(ctdb);
298 if (ctdb->methods != NULL) {
299 ctdb->methods->shutdown(ctdb);
301 ctdb_event_script(ctdb, CTDB_EVENT_SHUTDOWN);
302 DEBUG(DEBUG_NOTICE,("Received SHUTDOWN command. Stopping CTDB daemon.\n"));
305 case CTDB_CONTROL_TAKEOVER_IPv4:
306 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_public_ipv4));
307 return ctdb_control_takeover_ipv4(ctdb, c, indata, async_reply);
309 case CTDB_CONTROL_TAKEOVER_IP:
310 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_public_ip));
311 return ctdb_control_takeover_ip(ctdb, c, indata, async_reply);
313 case CTDB_CONTROL_RELEASE_IPv4:
314 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_public_ipv4));
315 return ctdb_control_release_ipv4(ctdb, c, indata, async_reply);
317 case CTDB_CONTROL_RELEASE_IP:
318 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_public_ip));
319 return ctdb_control_release_ip(ctdb, c, indata, async_reply);
321 case CTDB_CONTROL_GET_PUBLIC_IPSv4:
322 CHECK_CONTROL_DATA_SIZE(0);
323 return ctdb_control_get_public_ipsv4(ctdb, c, outdata);
325 case CTDB_CONTROL_GET_PUBLIC_IPS:
326 CHECK_CONTROL_DATA_SIZE(0);
327 return ctdb_control_get_public_ips(ctdb, c, outdata);
329 case CTDB_CONTROL_TCP_CLIENT:
330 return ctdb_control_tcp_client(ctdb, client_id, indata);
332 case CTDB_CONTROL_STARTUP:
333 CHECK_CONTROL_DATA_SIZE(0);
334 return ctdb_control_startup(ctdb, srcnode);
336 case CTDB_CONTROL_TCP_ADD:
337 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_control_tcp_vnn));
338 return ctdb_control_tcp_add(ctdb, indata);
340 case CTDB_CONTROL_SET_TUNABLE:
341 return ctdb_control_set_tunable(ctdb, indata);
343 case CTDB_CONTROL_GET_TUNABLE:
344 return ctdb_control_get_tunable(ctdb, indata, outdata);
346 case CTDB_CONTROL_LIST_TUNABLES:
347 return ctdb_control_list_tunables(ctdb, outdata);
349 case CTDB_CONTROL_MODIFY_FLAGS:
350 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_node_flag_change));
351 return ctdb_control_modflags(ctdb, indata);
353 case CTDB_CONTROL_KILL_TCP:
354 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_control_killtcp));
355 return ctdb_control_kill_tcp(ctdb, indata);
357 case CTDB_CONTROL_GET_TCP_TICKLE_LIST:
358 CHECK_CONTROL_DATA_SIZE(sizeof(ctdb_sock_addr));
359 return ctdb_control_get_tcp_tickle_list(ctdb, indata, outdata);
361 case CTDB_CONTROL_SET_TCP_TICKLE_LIST:
362 /* data size is verified in the called function */
363 return ctdb_control_set_tcp_tickle_list(ctdb, indata);
365 case CTDB_CONTROL_REGISTER_SERVER_ID:
366 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_server_id));
367 return ctdb_control_register_server_id(ctdb, client_id, indata);
369 case CTDB_CONTROL_UNREGISTER_SERVER_ID:
370 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_server_id));
371 return ctdb_control_unregister_server_id(ctdb, indata);
373 case CTDB_CONTROL_CHECK_SERVER_ID:
374 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_server_id));
375 return ctdb_control_check_server_id(ctdb, indata);
377 case CTDB_CONTROL_GET_SERVER_ID_LIST:
378 CHECK_CONTROL_DATA_SIZE(0);
379 return ctdb_control_get_server_id_list(ctdb, outdata);
381 case CTDB_CONTROL_PERSISTENT_STORE:
382 return ctdb_control_persistent_store(ctdb, c, indata, async_reply);
384 case CTDB_CONTROL_UPDATE_RECORD:
385 return ctdb_control_update_record(ctdb, c, indata, async_reply);
387 case CTDB_CONTROL_SEND_GRATIOUS_ARP:
388 return ctdb_control_send_gratious_arp(ctdb, indata);
390 case CTDB_CONTROL_TRANSACTION_START:
391 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
392 return ctdb_control_transaction_start(ctdb, *(uint32_t *)indata.dptr);
394 case CTDB_CONTROL_TRANSACTION_COMMIT:
395 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
396 return ctdb_control_transaction_commit(ctdb, *(uint32_t *)indata.dptr);
398 case CTDB_CONTROL_WIPE_DATABASE:
399 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_control_wipe_database));
400 return ctdb_control_wipe_database(ctdb, indata);
402 case CTDB_CONTROL_UPTIME:
403 return ctdb_control_uptime(ctdb, outdata);
405 case CTDB_CONTROL_START_RECOVERY:
406 return ctdb_control_start_recovery(ctdb, c, async_reply);
408 case CTDB_CONTROL_END_RECOVERY:
409 return ctdb_control_end_recovery(ctdb, c, async_reply);
411 case CTDB_CONTROL_TRY_DELETE_RECORDS:
412 return ctdb_control_try_delete_records(ctdb, indata, outdata);
414 case CTDB_CONTROL_ADD_PUBLIC_IP:
415 return ctdb_control_add_public_address(ctdb, indata);
417 case CTDB_CONTROL_DEL_PUBLIC_IP:
418 return ctdb_control_del_public_address(ctdb, indata);
420 case CTDB_CONTROL_GET_CAPABILITIES:
421 return ctdb_control_get_capabilities(ctdb, outdata);
423 case CTDB_CONTROL_START_PERSISTENT_UPDATE:
424 return ctdb_control_start_persistent_update(ctdb, c, indata);
426 case CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE:
427 return ctdb_control_cancel_persistent_update(ctdb, c, indata);
429 case CTDB_CONTROL_TRANS2_COMMIT:
430 case CTDB_CONTROL_TRANS2_COMMIT_RETRY:
431 return ctdb_control_trans2_commit(ctdb, c, indata, async_reply);
433 case CTDB_CONTROL_TRANS2_ERROR:
434 return ctdb_control_trans2_error(ctdb, c);
436 case CTDB_CONTROL_TRANS2_FINISHED:
437 return ctdb_control_trans2_finished(ctdb, c);
439 case CTDB_CONTROL_TRANS2_ACTIVE:
440 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
441 return ctdb_control_trans2_active(ctdb, c, *(uint32_t *)indata.dptr);
443 case CTDB_CONTROL_TRANS3_COMMIT:
444 return ctdb_control_trans3_commit(ctdb, c, indata, async_reply);
446 case CTDB_CONTROL_RECD_PING:
447 CHECK_CONTROL_DATA_SIZE(0);
448 return ctdb_control_recd_ping(ctdb);
450 case CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS:
451 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
452 return ctdb_control_get_event_script_status(ctdb, *(uint32_t *)indata.dptr, outdata);
454 case CTDB_CONTROL_RECD_RECLOCK_LATENCY:
455 CHECK_CONTROL_DATA_SIZE(sizeof(double));
456 ctdb_reclock_latency(ctdb, "recd reclock", &ctdb->statistics.reclock.recd, *((double *)indata.dptr));
458 case CTDB_CONTROL_GET_RECLOCK_FILE:
459 CHECK_CONTROL_DATA_SIZE(0);
460 if (ctdb->recovery_lock_file != NULL) {
461 outdata->dptr = discard_const(ctdb->recovery_lock_file);
462 outdata->dsize = strlen(ctdb->recovery_lock_file) + 1;
465 case CTDB_CONTROL_SET_RECLOCK_FILE:
466 ctdb->tunable.verify_recovery_lock = 0;
467 if (ctdb->recovery_lock_file != NULL) {
468 talloc_free(ctdb->recovery_lock_file);
469 ctdb->recovery_lock_file = NULL;
471 if (indata.dsize > 0) {
472 ctdb->recovery_lock_file = talloc_strdup(ctdb, discard_const(indata.dptr));
473 ctdb->tunable.verify_recovery_lock = 1;
477 case CTDB_CONTROL_STOP_NODE:
478 CHECK_CONTROL_DATA_SIZE(0);
479 return ctdb_control_stop_node(ctdb, c, async_reply);
481 case CTDB_CONTROL_CONTINUE_NODE:
482 CHECK_CONTROL_DATA_SIZE(0);
483 return ctdb_control_continue_node(ctdb);
485 case CTDB_CONTROL_SET_NATGWSTATE: {
488 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
489 natgwstate = *(uint32_t *)indata.dptr;
490 if (natgwstate == 0) {
491 ctdb->capabilities &= ~CTDB_CAP_NATGW;
493 ctdb->capabilities |= CTDB_CAP_NATGW;
498 case CTDB_CONTROL_SET_LMASTERROLE: {
499 uint32_t lmasterrole;
501 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
502 lmasterrole = *(uint32_t *)indata.dptr;
503 if (lmasterrole == 0) {
504 ctdb->capabilities &= ~CTDB_CAP_LMASTER;
506 ctdb->capabilities |= CTDB_CAP_LMASTER;
511 case CTDB_CONTROL_SET_RECMASTERROLE: {
512 uint32_t recmasterrole;
514 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
515 recmasterrole = *(uint32_t *)indata.dptr;
516 if (recmasterrole == 0) {
517 ctdb->capabilities &= ~CTDB_CAP_RECMASTER;
519 ctdb->capabilities |= CTDB_CAP_RECMASTER;
524 case CTDB_CONTROL_ENABLE_SCRIPT:
525 return ctdb_control_enable_script(ctdb, indata);
527 case CTDB_CONTROL_DISABLE_SCRIPT:
528 return ctdb_control_disable_script(ctdb, indata);
530 case CTDB_CONTROL_SET_BAN_STATE:
531 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_ban_time));
532 return ctdb_control_set_ban_state(ctdb, indata);
534 case CTDB_CONTROL_GET_BAN_STATE:
535 CHECK_CONTROL_DATA_SIZE(0);
536 return ctdb_control_get_ban_state(ctdb, outdata);
538 case CTDB_CONTROL_SET_DB_PRIORITY:
539 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_db_priority));
540 return ctdb_control_set_db_priority(ctdb, indata);
542 case CTDB_CONTROL_GET_DB_PRIORITY: {
544 struct ctdb_db_context *ctdb_db;
546 CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
547 db_id = *(uint32_t *)indata.dptr;
548 ctdb_db = find_ctdb_db(ctdb, db_id);
549 if (ctdb_db == NULL) return -1;
550 return ctdb_db->priority;
553 case CTDB_CONTROL_TRANSACTION_CANCEL:
554 CHECK_CONTROL_DATA_SIZE(0);
555 return ctdb_control_transaction_cancel(ctdb);
557 case CTDB_CONTROL_REGISTER_NOTIFY:
558 return ctdb_control_register_notify(ctdb, client_id, indata);
560 case CTDB_CONTROL_DEREGISTER_NOTIFY:
561 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_client_notify_deregister));
562 return ctdb_control_deregister_notify(ctdb, client_id, indata);
564 case CTDB_CONTROL_GET_LOG:
565 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_get_log_addr));
566 return ctdb_control_get_log(ctdb, indata);
568 case CTDB_CONTROL_CLEAR_LOG:
569 return ctdb_control_clear_log(ctdb);
571 case CTDB_CONTROL_GET_DB_SEQNUM:
572 CHECK_CONTROL_DATA_SIZE(sizeof(uint64_t));
573 return ctdb_control_get_db_seqnum(ctdb, indata, outdata);
575 case CTDB_CONTROL_DB_SET_HEALTHY:
576 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
577 return ctdb_control_db_set_healthy(ctdb, indata);
579 case CTDB_CONTROL_DB_GET_HEALTH:
580 CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
581 return ctdb_control_db_get_health(ctdb, indata, outdata);
583 case CTDB_CONTROL_GET_PUBLIC_IP_INFO:
584 CHECK_CONTROL_DATA_SIZE(sizeof(ctdb_sock_addr));
585 return ctdb_control_get_public_ip_info(ctdb, c, indata, outdata);
587 case CTDB_CONTROL_GET_IFACES:
588 CHECK_CONTROL_DATA_SIZE(0);
589 return ctdb_control_get_ifaces(ctdb, c, outdata);
591 case CTDB_CONTROL_SET_IFACE_LINK_STATE:
592 CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_control_iface_info));
593 return ctdb_control_set_iface_link(ctdb, c, indata);
596 DEBUG(DEBUG_CRIT,(__location__ " Unknown CTDB control opcode %u\n", opcode));
602 send a reply for a ctdb control
604 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
605 TDB_DATA *outdata, int32_t status, const char *errormsg)
607 struct ctdb_reply_control *r;
610 /* some controls send no reply */
611 if (c->flags & CTDB_CTRL_FLAG_NOREPLY) {
615 len = offsetof(struct ctdb_reply_control, data) + (outdata?outdata->dsize:0);
617 len += strlen(errormsg);
619 r = ctdb_transport_allocate(ctdb, ctdb, CTDB_REPLY_CONTROL, len, struct ctdb_reply_control);
620 CTDB_NO_MEMORY_VOID(ctdb, r);
622 r->hdr.destnode = c->hdr.srcnode;
623 r->hdr.reqid = c->hdr.reqid;
625 r->datalen = outdata?outdata->dsize:0;
626 if (outdata && outdata->dsize) {
627 memcpy(&r->data[0], outdata->dptr, outdata->dsize);
630 r->errorlen = strlen(errormsg);
631 memcpy(&r->data[r->datalen], errormsg, r->errorlen);
634 ctdb_queue_packet_opcode(ctdb, &r->hdr, c->opcode);
640 called when a CTDB_REQ_CONTROL packet comes in
642 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr)
644 struct ctdb_req_control *c = (struct ctdb_req_control *)hdr;
645 TDB_DATA data, *outdata;
647 bool async_reply = False;
648 const char *errormsg = NULL;
650 data.dptr = &c->data[0];
651 data.dsize = c->datalen;
653 outdata = talloc_zero(c, TDB_DATA);
655 status = ctdb_control_dispatch(ctdb, c, data, outdata, hdr->srcnode,
656 &errormsg, &async_reply);
659 ctdb_request_control_reply(ctdb, c, outdata, status, errormsg);
664 called when a CTDB_REPLY_CONTROL packet comes in
666 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr)
668 struct ctdb_reply_control *c = (struct ctdb_reply_control *)hdr;
670 struct ctdb_control_state *state;
671 const char *errormsg = NULL;
673 state = ctdb_reqid_find(ctdb, hdr->reqid, struct ctdb_control_state);
675 DEBUG(DEBUG_ERR,("pnn %u Invalid reqid %u in ctdb_reply_control\n",
676 ctdb->pnn, hdr->reqid));
680 if (hdr->reqid != state->reqid) {
681 /* we found a record but it was the wrong one */
682 DEBUG(DEBUG_ERR, ("Dropped orphaned control reply with reqid:%u\n", hdr->reqid));
686 data.dptr = &c->data[0];
687 data.dsize = c->datalen;
689 errormsg = talloc_strndup(state,
690 (char *)&c->data[c->datalen], c->errorlen);
693 /* make state a child of the packet, so it goes away when the packet
695 talloc_steal(hdr, state);
697 state->callback(ctdb, c->status, data, errormsg, state->private_data);
700 static int ctdb_control_destructor(struct ctdb_control_state *state)
702 ctdb_reqid_remove(state->ctdb, state->reqid);
707 handle a timeout of a control
709 static void ctdb_control_timeout(struct event_context *ev, struct timed_event *te,
710 struct timeval t, void *private_data)
712 struct ctdb_control_state *state = talloc_get_type(private_data, struct ctdb_control_state);
713 TALLOC_CTX *tmp_ctx = talloc_new(ev);
715 state->ctdb->statistics.timeouts.control++;
717 talloc_steal(tmp_ctx, state);
719 state->callback(state->ctdb, -1, tdb_null,
720 "ctdb_control timed out",
721 state->private_data);
722 talloc_free(tmp_ctx);
727 send a control message to a node
729 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
730 uint64_t srvid, uint32_t opcode, uint32_t client_id,
733 ctdb_control_callback_fn_t callback,
736 struct ctdb_req_control *c;
737 struct ctdb_control_state *state;
740 if (ctdb->methods == NULL) {
741 DEBUG(DEBUG_ERR,(__location__ " Failed to send control. Transport is DOWN\n"));
745 if (((destnode == CTDB_BROADCAST_VNNMAP) ||
746 (destnode == CTDB_BROADCAST_ALL) ||
747 (destnode == CTDB_BROADCAST_CONNECTED)) &&
748 !(flags & CTDB_CTRL_FLAG_NOREPLY)) {
749 DEBUG(DEBUG_CRIT,("Attempt to broadcast control without NOREPLY\n"));
753 if (destnode != CTDB_BROADCAST_VNNMAP &&
754 destnode != CTDB_BROADCAST_ALL &&
755 destnode != CTDB_BROADCAST_CONNECTED &&
756 (!ctdb_validate_pnn(ctdb, destnode) ||
757 (ctdb->nodes[destnode]->flags & NODE_FLAGS_DISCONNECTED))) {
758 if (!(flags & CTDB_CTRL_FLAG_NOREPLY)) {
759 callback(ctdb, -1, tdb_null, "ctdb_control to disconnected node", private_data);
764 /* the state is made a child of private_data if possible. This means any reply
765 will be discarded if the private_data goes away */
766 state = talloc(private_data?private_data:ctdb, struct ctdb_control_state);
767 CTDB_NO_MEMORY(ctdb, state);
769 state->reqid = ctdb_reqid_new(ctdb, state);
770 state->callback = callback;
771 state->private_data = private_data;
773 state->flags = flags;
775 talloc_set_destructor(state, ctdb_control_destructor);
777 len = offsetof(struct ctdb_req_control, data) + data.dsize;
778 c = ctdb_transport_allocate(ctdb, state, CTDB_REQ_CONTROL, len,
779 struct ctdb_req_control);
780 CTDB_NO_MEMORY(ctdb, c);
781 talloc_set_name_const(c, "ctdb_req_control packet");
783 c->hdr.destnode = destnode;
784 c->hdr.reqid = state->reqid;
786 c->client_id = client_id;
789 c->datalen = data.dsize;
791 memcpy(&c->data[0], data.dptr, data.dsize);
794 ctdb_queue_packet(ctdb, &c->hdr);
796 if (flags & CTDB_CTRL_FLAG_NOREPLY) {
801 if (ctdb->tunable.control_timeout) {
802 event_add_timed(ctdb->ev, state,
803 timeval_current_ofs(ctdb->tunable.control_timeout, 0),
804 ctdb_control_timeout, state);