4 Copyright (C) Andrew Tridgell 2006
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 #ifndef _CTDB_PRIVATE_H
21 #define _CTDB_PRIVATE_H
23 #include "ctdb_client.h"
24 #include <sys/socket.h>
27 recovery daemon memdump reply address
29 struct rd_memdump_reply {
35 description for a TAKEOVER_RUN message reply address
37 struct takeover_run_reply {
43 * pid of the ctdbd daemon
45 extern pid_t ctdbd_pid;
48 a tcp connection description
49 also used by tcp_add and tcp_remove controls
51 struct ctdb_tcp_connection {
52 ctdb_sock_addr src_addr;
53 ctdb_sock_addr dst_addr;
56 /* the wire representation for a tcp tickle array */
57 struct ctdb_tcp_wire_array {
59 struct ctdb_tcp_connection connections[1];
62 /* the list of tcp tickles used by get/set tcp tickle list */
63 struct ctdb_control_tcp_tickle_list {
65 struct ctdb_tcp_wire_array tickles;
69 array of tcp connections
71 struct ctdb_tcp_array {
73 struct ctdb_tcp_connection *connections;
77 /* all tunable variables go in here */
79 uint32_t max_redirect_count;
80 uint32_t seqnum_interval; /* unit is ms */
81 uint32_t control_timeout;
82 uint32_t traverse_timeout;
83 uint32_t keepalive_interval;
84 uint32_t keepalive_limit;
85 uint32_t recover_timeout;
86 uint32_t recover_interval;
87 uint32_t election_timeout;
88 uint32_t takeover_timeout;
89 uint32_t monitor_interval;
90 uint32_t tickle_update_interval;
91 uint32_t script_timeout;
92 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
93 uint32_t script_unhealthy_on_timeout; /* obsolete */
94 uint32_t recovery_grace_period;
95 uint32_t recovery_ban_period;
96 uint32_t database_hash_size;
97 uint32_t database_max_dead;
98 uint32_t rerecovery_timeout;
100 uint32_t deterministic_public_ips;
101 uint32_t reclock_ping_period;
102 uint32_t no_ip_failback;
103 uint32_t disable_ip_failover;
104 uint32_t verbose_memory_names;
105 uint32_t recd_ping_timeout;
106 uint32_t recd_ping_failcount;
107 uint32_t log_latency_ms;
108 uint32_t reclock_latency_ms;
109 uint32_t recovery_drop_all_ips;
110 uint32_t verify_recovery_lock;
111 uint32_t vacuum_interval;
112 uint32_t vacuum_default_interval;
113 uint32_t vacuum_max_run_time;
114 uint32_t repack_limit;
115 uint32_t vacuum_limit;
116 uint32_t vacuum_min_interval;
117 uint32_t vacuum_max_interval;
118 uint32_t max_queue_depth_drop_msg;
119 uint32_t use_status_events_for_monitoring;
120 uint32_t allow_unhealthy_db_read;
121 uint32_t stat_history_interval;
122 uint32_t deferred_attach_timeout;
123 uint32_t vacuum_fast_path_count;
124 uint32_t lcp2_public_ip_assignment;
125 uint32_t allow_client_db_attach;
126 uint32_t recover_pdb_by_seqnum;
127 uint32_t deferred_rebalance_on_node_add;
128 uint32_t fetch_collapse;
129 uint32_t max_lacount;
130 uint32_t hopcount_make_sticky;
131 uint32_t sticky_duration;
132 uint32_t sticky_pindown;
133 uint32_t no_ip_takeover;
134 uint32_t db_record_count_warn;
135 uint32_t db_record_size_warn;
136 uint32_t db_size_warn;
137 uint32_t pulldb_preallocation_size;
138 uint32_t no_ip_host_on_all_disabled;
139 uint32_t deadlock_timeout;
140 uint32_t samba3_hack;
144 an installed ctdb remote call
146 struct ctdb_registered_call {
147 struct ctdb_registered_call *next, *prev;
153 this address structure might need to be generalised later for some
156 struct ctdb_address {
162 check that a pnn is valid
164 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
167 /* called from the queue code when a packet comes in. Called with data==NULL
169 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
172 /* used for callbacks in ctdb_control requests */
173 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
174 int32_t status, TDB_DATA data,
175 const char *errormsg,
178 structure describing a connected client in the daemon
181 struct ctdb_context *ctdb;
183 struct ctdb_queue *queue;
186 struct ctdb_tcp_list *tcp_list;
188 uint32_t num_persistent_updates;
189 struct ctdb_client_notify_list *notify;
194 /* state associated with a public ip address */
196 struct ctdb_vnn *prev, *next;
198 struct ctdb_iface *iface;
200 ctdb_sock_addr public_address;
201 uint8_t public_netmask_bits;
203 /* the node number that is serving this public address, if any.
204 If no node serves this ip it is set to -1 */
207 /* List of clients to tickle for this public address */
208 struct ctdb_tcp_array *tcp_array;
210 /* whether we need to update the other nodes with changes to our list
211 of connected clients */
212 bool tcp_update_needed;
214 /* a context to hang sending gratious arp events off */
215 TALLOC_CTX *takeover_ctx;
217 struct ctdb_kill_tcp *killtcp;
219 /* Set to true any time an update to this VNN is in flight.
220 This helps to avoid races. */
221 bool update_in_flight;
225 state associated with one node
228 struct ctdb_context *ctdb;
229 struct ctdb_address address;
230 const char *name; /* for debug messages */
231 void *private_data; /* private to transport */
235 /* used by the dead node monitoring */
240 /* used to track node capabilities, is only valid/tracked inside the
243 uint32_t capabilities;
245 /* a list of controls pending to this node, so we can time them out quickly
246 if the node becomes disconnected */
247 struct daemon_control_state *pending_controls;
249 /* used by the recovery daemon when distributing ip addresses
250 across the nodes. it needs to know which public ip's can be handled
253 struct ctdb_all_public_ips *known_public_ips;
254 struct ctdb_all_public_ips *available_public_ips;
255 /* used by the recovery dameon to track when a node should be banned */
256 struct ctdb_banning_state *ban_state;
260 transport specific methods
262 struct ctdb_methods {
263 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
264 int (*start)(struct ctdb_context *); /* start the transport */
265 int (*add_node)(struct ctdb_node *); /* setup a new node */
266 int (*connect_node)(struct ctdb_node *); /* connect to node */
267 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
268 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
269 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
270 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
274 transport calls up to the ctdb layer
276 struct ctdb_upcalls {
277 /* recv_pkt is called when a packet comes in */
278 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
280 /* node_dead is called when an attempt to send to a node fails */
281 void (*node_dead)(struct ctdb_node *);
283 /* node_connected is called when a connection to a node is established */
284 void (*node_connected)(struct ctdb_node *);
287 /* list of message handlers - needs to be changed to a more efficient data
288 structure so we can find a message handler given a srvid quickly */
289 struct ctdb_message_list_header {
290 struct ctdb_message_list_header *next, *prev;
291 struct ctdb_context *ctdb;
293 struct ctdb_message_list *m;
295 struct ctdb_message_list {
296 struct ctdb_message_list *next, *prev;
297 struct ctdb_message_list_header *h;
298 ctdb_msg_fn_t message_handler;
299 void *message_private;
302 /* additional data required for the daemon mode */
303 struct ctdb_daemon_data {
306 struct ctdb_queue *queue;
310 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
312 if (value > ctdb->statistics.counter) { \
313 ctdb->statistics.counter = c->hopcount; \
315 if (value > ctdb->statistics_current.counter) { \
316 ctdb->statistics_current.counter = c->hopcount; \
320 #define CTDB_INCREMENT_STAT(ctdb, counter) \
322 ctdb->statistics.counter++; \
323 ctdb->statistics_current.counter++; \
326 #define CTDB_DECREMENT_STAT(ctdb, counter) \
328 if (ctdb->statistics.counter > 0) \
329 ctdb->statistics.counter--; \
330 if (ctdb->statistics_current.counter > 0) \
331 ctdb->statistics_current.counter--; \
334 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
336 ctdb_db->statistics.counter++; \
339 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
341 if (ctdb_db->statistics.counter > 0) \
342 ctdb_db->statistics.counter--; \
345 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
347 if (value > ctdb->statistics.counter.max) \
348 ctdb->statistics.counter.max = value; \
349 if (value > ctdb->statistics_current.counter.max) \
350 ctdb->statistics_current.counter.max = value; \
352 if (ctdb->statistics.counter.num == 0 || \
353 value < ctdb->statistics.counter.min) \
354 ctdb->statistics.counter.min = value; \
355 if (ctdb->statistics_current.counter.num == 0 || \
356 value < ctdb->statistics_current.counter.min) \
357 ctdb->statistics_current.counter.min = value; \
359 ctdb->statistics.counter.total += value; \
360 ctdb->statistics_current.counter.total += value; \
362 ctdb->statistics.counter.num++; \
363 ctdb->statistics_current.counter.num++; \
365 if (ctdb->tunable.reclock_latency_ms != 0) { \
366 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
368 ("High RECLOCK latency %fs for operation %s\n", \
374 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
376 if (value > ctdb_db->statistics.counter.max) \
377 ctdb_db->statistics.counter.max = value; \
378 if (ctdb_db->statistics.counter.num == 0 || \
379 value < ctdb_db->statistics.counter.min) \
380 ctdb_db->statistics.counter.min = value; \
382 ctdb_db->statistics.counter.total += value; \
383 ctdb_db->statistics.counter.num++; \
385 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
386 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
388 ("High latency %.6fs for operation %s on database %s\n",\
389 value, operation, ctdb_db->db_name)); \
394 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
396 double l = timeval_elapsed(&t); \
398 if (l > ctdb->statistics.counter.max) \
399 ctdb->statistics.counter.max = l; \
400 if (l > ctdb->statistics_current.counter.max) \
401 ctdb->statistics_current.counter.max = l; \
403 if (ctdb->statistics.counter.num == 0 || \
404 l < ctdb->statistics.counter.min) \
405 ctdb->statistics.counter.min = l; \
406 if (ctdb->statistics_current.counter.num == 0 || \
407 l < ctdb->statistics_current.counter.min) \
408 ctdb->statistics_current.counter.min = l; \
410 ctdb->statistics.counter.total += l; \
411 ctdb->statistics_current.counter.total += l; \
413 ctdb->statistics.counter.num++; \
414 ctdb->statistics_current.counter.num++; \
416 if (ctdb->tunable.log_latency_ms != 0) { \
417 if (l*1000 > ctdb->tunable.log_latency_ms) { \
418 DEBUG(DEBUG_WARNING, \
419 ("High latency %.6fs for operation %s on database %s\n",\
420 l, operation, db->db_name)); \
427 /* a structure that contains the elements required for the write record
430 struct ctdb_write_record {
434 unsigned char blob[1];
437 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
440 CTDB_RUNSTATE_UNKNOWN,
443 CTDB_RUNSTATE_FIRST_RECOVERY,
444 CTDB_RUNSTATE_STARTUP,
445 CTDB_RUNSTATE_RUNNING,
446 CTDB_RUNSTATE_SHUTDOWN,
449 const char *runstate_to_string(enum ctdb_runstate runstate);
450 enum ctdb_runstate runstate_from_string(const char *label);
451 void ctdb_set_runstate(struct ctdb_context *ctdb, enum ctdb_runstate runstate);
453 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
455 #define CTDB_MONITORING_ACTIVE 0
456 #define CTDB_MONITORING_DISABLED 1
458 #define NUM_DB_PRIORITIES 3
459 /* main state of the ctdb daemon */
460 struct ctdb_context {
461 struct tevent_context *ev;
462 struct timeval ctdbd_start_time;
463 struct timeval last_recovery_started;
464 struct timeval last_recovery_finished;
465 uint32_t recovery_mode;
466 TALLOC_CTX *tickle_update_context;
467 TALLOC_CTX *keepalive_ctx;
468 TALLOC_CTX *check_public_ifaces_ctx;
469 struct ctdb_tunable tunable;
470 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
471 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
472 bool freeze_transaction_started;
473 uint32_t freeze_transaction_id;
474 struct ctdb_address address;
476 const char *db_directory;
477 const char *db_directory_persistent;
478 const char *db_directory_state;
479 struct tdb_wrap *db_persistent_health;
480 uint32_t db_persistent_startup_generation;
481 uint64_t db_persistent_check_errors;
482 uint64_t max_persistent_check_errors;
483 const char *transport;
484 char *recovery_lock_file;
485 int recovery_lock_fd;
486 uint32_t pnn; /* our own pnn */
488 uint32_t num_connected;
490 uint32_t capabilities;
491 struct idr_context *idr;
493 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
494 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
495 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
496 struct ctdb_iface *ifaces; /* list of local interfaces */
498 const struct ctdb_methods *methods; /* transport methods */
499 const struct ctdb_upcalls *upcalls; /* transport upcalls */
500 void *private_data; /* private to transport */
501 struct ctdb_db_context *db_list;
502 struct ctdb_message_list_header *message_list_header;
503 struct tdb_context *message_list_indexdb;
504 struct ctdb_daemon_data daemon;
505 struct ctdb_statistics statistics;
506 struct ctdb_statistics statistics_current;
507 #define MAX_STAT_HISTORY 100
508 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
509 struct ctdb_vnn_map *vnn_map;
510 uint32_t num_clients;
511 uint32_t recovery_master;
512 struct ctdb_call_state *pending_calls;
513 struct ctdb_client_ip *client_ip_list;
514 bool do_checkpublicip;
515 struct trbt_tree *server_ids;
517 void *saved_scheduler_param;
518 const char *event_script_dir;
519 const char *notification_script;
520 const char *default_public_interface;
524 enum ctdb_runstate runstate;
525 struct ctdb_monitor_state *monitor;
526 struct ctdb_log_state *log;
527 int start_as_disabled;
528 int start_as_stopped;
530 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
531 uint32_t *recd_ping_count;
532 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
533 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
535 TALLOC_CTX *event_script_ctx;
537 struct ctdb_event_script_state *current_monitor;
538 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
540 TALLOC_CTX *banning_ctx;
542 struct ctdb_vacuum_child_context *vacuumers;
544 /* mapping from pid to ctdb_client * */
545 struct ctdb_client_pid_list *client_pids;
547 /* used in the recovery daemon to remember the ip allocation */
548 struct trbt_tree *ip_tree;
550 /* Used to defer db attach requests while in recovery mode */
551 struct ctdb_deferred_attach_context *deferred_attach;
553 /* if we are a child process, do we have a domain socket to send controls on */
554 bool can_send_controls;
556 /* list of event script callback functions that are active */
557 struct event_script_callback *script_callbacks;
559 struct ctdb_reloadips_handle *reload_ips;
561 const char *public_addresses_file;
562 struct trbt_tree *child_processes;
564 /* Used for locking record/db/alldb */
565 int lock_num_current;
566 int lock_num_pending;
567 struct lock_context *lock_current;
568 struct lock_context *lock_pending;
571 struct ctdb_db_context {
572 struct ctdb_db_context *next, *prev;
573 struct ctdb_context *ctdb;
577 bool readonly; /* Do we support read-only delegations ? */
578 bool sticky; /* Do we support sticky records ? */
581 struct tdb_wrap *ltdb;
582 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
583 struct ctdb_registered_call *calls; /* list of registered calls */
585 struct timed_event *seqnum_update;
586 struct ctdb_traverse_local_handle *traverse;
587 bool transaction_active;
588 struct ctdb_vacuum_handle *vacuum_handle;
589 char *unhealthy_reason;
590 int pending_requests;
591 struct revokechild_handle *revokechild_active;
592 struct ctdb_persistent_state *persistent_state;
593 struct trbt_tree *delete_queue;
594 struct trbt_tree *sticky_records;
595 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
597 struct ctdb_ltdb_header *header,
600 /* used to track which records we are currently fetching
601 so we can avoid sending duplicate fetch requests
603 struct trbt_tree *deferred_fetch;
605 struct ctdb_db_statistics statistics;
609 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
610 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
611 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
612 return -1; }} while (0)
614 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
615 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
616 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
619 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
620 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
621 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
622 return NULL; }} while (0)
624 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
625 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
626 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
630 structure passed in set_call control
632 struct ctdb_control_set_call {
639 struct for kill_tcp control
641 struct ctdb_control_killtcp {
642 ctdb_sock_addr src_addr;
643 ctdb_sock_addr dst_addr;
647 struct holding a ctdb_sock_addr and an interface name,
648 used to add/remove public addresses
650 struct ctdb_control_ip_iface {
658 struct holding a ctdb_sock_addr and an interface name,
659 used for send_gratious_arp
661 struct ctdb_control_gratious_arp {
669 persistent store control - update this record on all other nodes
671 struct ctdb_control_persistent_store {
678 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
680 struct ctdb_node_flag_change {
687 struct for admin setting a ban
689 struct ctdb_ban_info {
694 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
696 #define CTDB_LMASTER_ANY 0xffffffff
699 state of a in-progress ctdb call
701 struct ctdb_call_state {
702 struct ctdb_call_state *next, *prev;
703 enum call_state state;
705 struct ctdb_req_call *c;
706 struct ctdb_db_context *ctdb_db;
708 struct ctdb_call *call;
711 void (*fn)(struct ctdb_call_state *);
717 /* used for fetch_lock */
718 struct ctdb_fetch_handle {
719 struct ctdb_db_context *ctdb_db;
722 struct ctdb_ltdb_header header;
725 /* internal prototypes */
726 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
727 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
728 void ctdb_external_trace(void);
729 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
730 int ctdb_parse_address(struct ctdb_context *ctdb,
731 TALLOC_CTX *mem_ctx, const char *str,
732 struct ctdb_address *address);
733 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
734 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
735 uint32_t ctdb_hash(const TDB_DATA *key);
736 uint32_t ctdb_hash_string(const char *str);
737 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
738 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
739 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
740 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
741 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
742 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
744 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
745 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
746 TDB_DATA key, struct ctdb_ltdb_header *header,
747 TALLOC_CTX *mem_ctx, TDB_DATA *data);
748 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
749 struct ctdb_ltdb_header *header, TDB_DATA data);
750 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
751 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
752 TDB_DATA key, struct ctdb_ltdb_header *header,
753 TALLOC_CTX *mem_ctx, TDB_DATA *data);
754 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
755 struct ctdb_req_control *c,
757 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
758 struct ctdb_req_control *c,
760 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
761 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
762 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
763 TDB_DATA key, struct ctdb_req_header *hdr,
764 void (*recv_pkt)(void *, struct ctdb_req_header *),
765 void *recv_context, bool ignore_generation);
766 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
767 TDB_DATA key, struct ctdb_ltdb_header *header,
768 struct ctdb_req_header *hdr, TDB_DATA *data,
769 void (*recv_pkt)(void *, struct ctdb_req_header *),
770 void *recv_context, bool ignore_generation);
771 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
773 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
774 struct ctdb_call *call,
775 struct ctdb_ltdb_header *header,
779 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork,
781 const char *public_address_list);
782 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
783 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
786 queue a packet for sending
788 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
791 setup the fd used by the queue
793 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
796 setup a packet queue on a socket
798 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
799 TALLOC_CTX *mem_ctx, int fd, int alignment,
801 ctdb_queue_cb_fn_t callback,
802 void *private_data, const char *fmt, ...)
803 PRINTF_ATTRIBUTE(7,8);
806 allocate a packet for use in client<->daemon communication
808 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
810 enum ctdb_operation operation,
811 size_t length, size_t slength,
813 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
814 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
816 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
818 enum ctdb_operation operation,
819 size_t length, size_t slength,
821 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
822 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
824 int ctdb_queue_length(struct ctdb_queue *queue);
827 lock a record in the ltdb, given a key
829 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
832 unlock a record in the ltdb, given a key
834 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
838 make a ctdb call to the local daemon - async send. Called from client context.
840 This constructs a ctdb_call request and queues it for processing.
841 This call never blocks.
843 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
844 struct ctdb_call *call);
847 make a recv call to the local ctdb daemon - called from client context
849 This is called when the program wants to wait for a ctdb_call to complete and get the
850 results. This call will block unless the call has already completed.
852 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
854 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
855 uint64_t srvid, TDB_DATA data);
860 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
861 uint64_t srvid, TDB_DATA data);
864 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
865 struct ctdb_call *call);
867 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
869 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
870 struct ctdb_call *call,
871 struct ctdb_ltdb_header *header);
873 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
874 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
875 TDB_DATA *data, bool updatetdb, uint32_t caller);
877 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
879 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
881 int ctdb_socket_connect(struct ctdb_context *ctdb);
882 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
884 #define CTDB_BAD_REQID ((uint32_t)-1)
885 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
886 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
887 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
889 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
890 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
892 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
893 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
895 ctdb_control_callback_fn_t callback,
898 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
899 TDB_DATA *outdata, uint64_t tdb_flags,
900 bool persistent, uint32_t client_id,
901 struct ctdb_req_control *c,
904 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
905 ctdb_fn_t fn, int id);
907 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
908 uint32_t opcode, uint32_t flags, TDB_DATA data,
909 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
910 struct timeval *timeout, char **errormsg);
911 int ctdb_control_recv(struct ctdb_context *ctdb,
912 struct ctdb_client_control_state *state,
914 TDB_DATA *outdata, int32_t *status, char **errormsg);
916 struct ctdb_client_control_state *
917 ctdb_control_send(struct ctdb_context *ctdb,
918 uint32_t destnode, uint64_t srvid,
919 uint32_t opcode, uint32_t flags, TDB_DATA data,
921 struct timeval *timeout,
927 #define CHECK_CONTROL_DATA_SIZE(size) do { \
928 if (indata.dsize != size) { \
929 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
930 opcode, (unsigned)indata.dsize, (unsigned)size)); \
935 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
936 if (indata.dsize < size) { \
937 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
938 opcode, (unsigned)indata.dsize, (unsigned)size)); \
943 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
944 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
945 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
946 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
947 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
948 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
951 /* structure used for pulldb control */
952 struct ctdb_control_pulldb {
957 /* structure used for sending lists of records */
958 struct ctdb_marshall_buffer {
964 /* set dmaster control structure */
965 struct ctdb_control_set_dmaster {
971 structure for setting a tunable
973 struct ctdb_control_set_tunable {
980 structure for getting a tunable
982 struct ctdb_control_get_tunable {
988 structure for listing tunables
990 struct ctdb_control_list_tunable {
992 /* returns a : separated list of tunable names */
997 struct ctdb_node_and_flagsv4 {
1000 struct sockaddr_in sin;
1003 struct ctdb_node_mapv4 {
1005 struct ctdb_node_and_flagsv4 nodes[1];
1008 struct ctdb_control_wipe_database {
1010 uint32_t transaction_id;
1014 state of a in-progress ctdb call in client
1016 struct ctdb_client_call_state {
1017 enum call_state state;
1019 struct ctdb_db_context *ctdb_db;
1020 struct ctdb_call *call;
1022 void (*fn)(struct ctdb_client_call_state *);
1028 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1032 uint32_t client_id);
1033 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1034 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1035 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1036 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1037 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1038 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1039 TDB_DATA *outdata, uint32_t srcnode);
1041 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1042 bool ctdb_check_message_handler(struct ctdb_context *ctdb, uint64_t srvid);
1044 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1045 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1046 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1047 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
1050 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1051 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1053 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1054 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1056 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1058 struct ctdb_ltdb_header *header,
1059 TDB_DATA *key, TDB_DATA *data);
1061 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1062 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1064 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1065 struct ctdb_req_control *c,
1066 TDB_DATA indata, bool *async_reply,
1067 const char **errormsg);
1068 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1069 TDB_DATA *outdata, int32_t status, const char *errormsg);
1071 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1072 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1074 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1075 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1077 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1079 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1080 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1081 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1082 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1083 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1084 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1085 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1086 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1087 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1090 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1091 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1092 void ctdb_node_dead(struct ctdb_node *node);
1093 void ctdb_node_connected(struct ctdb_node *node);
1094 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1095 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1096 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1098 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
1099 pid_t ctdb_fork(struct ctdb_context *ctdb);
1100 pid_t ctdb_fork_no_free_ringbuffer(struct ctdb_context *ctdb);
1101 void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt, ...);
1102 bool ctdb_is_child_process(void);
1103 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
1105 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1106 struct ctdb_req_control *c,
1109 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1110 struct ctdb_req_control *c,
1113 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1114 struct ctdb_req_control *c,
1117 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1118 struct ctdb_req_control *c,
1121 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
1122 struct ctdb_req_control *c,
1124 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1125 struct ctdb_req_control *c,
1127 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1128 struct ctdb_req_control *c,
1131 struct ctdb_public_ipv4 {
1133 struct sockaddr_in sin;
1136 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1137 uint32_t destnode, struct ctdb_public_ip *ip);
1138 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1139 uint32_t destnode, struct ctdb_public_ip *ip);
1141 struct ctdb_all_public_ipsv4 {
1143 struct ctdb_public_ipv4 ips[1];
1146 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1147 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1148 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1149 struct timeval timeout,
1151 TALLOC_CTX *mem_ctx,
1152 struct ctdb_all_public_ips **ips);
1153 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1154 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1155 struct timeval timeout, uint32_t destnode,
1156 TALLOC_CTX *mem_ctx,
1158 struct ctdb_all_public_ips **ips);
1159 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1160 struct timeval timeout, uint32_t destnode,
1161 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1163 struct ctdb_control_iface_info {
1164 char name[CTDB_IFACE_SIZE+2];
1165 uint16_t link_state;
1166 uint32_t references;
1169 struct ctdb_control_public_ip_info {
1170 struct ctdb_public_ip ip;
1171 uint32_t active_idx;
1173 struct ctdb_control_iface_info ifaces[1];
1176 struct ctdb_control_get_ifaces {
1178 struct ctdb_control_iface_info ifaces[1];
1181 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1182 struct ctdb_req_control *c,
1185 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1186 struct ctdb_req_control *c,
1188 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1189 struct ctdb_req_control *c,
1191 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1192 struct timeval timeout, uint32_t destnode,
1193 TALLOC_CTX *mem_ctx,
1194 const ctdb_sock_addr *addr,
1195 struct ctdb_control_public_ip_info **info);
1196 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1197 struct timeval timeout, uint32_t destnode,
1198 TALLOC_CTX *mem_ctx,
1199 struct ctdb_control_get_ifaces **ifaces);
1200 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1201 struct timeval timeout, uint32_t destnode,
1202 TALLOC_CTX *mem_ctx,
1203 const struct ctdb_control_iface_info *info);
1205 /* from takeover/system.c */
1206 uint32_t uint16_checksum(uint16_t *data, size_t n);
1207 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1208 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1209 char *ctdb_sys_find_ifname(ctdb_sock_addr *addr);
1210 bool ctdb_sys_check_iface_exists(const char *iface);
1211 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1212 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1213 const ctdb_sock_addr *src,
1214 uint32_t seq, uint32_t ack, int rst);
1216 /* Details of a byte range lock */
1217 struct ctdb_lock_info {
1224 char *ctdb_get_process_name(pid_t pid);
1225 bool ctdb_get_lock_info(pid_t req_pid, struct ctdb_lock_info *lock_info);
1226 bool ctdb_get_blocker_pid(struct ctdb_lock_info *reqlock, pid_t *blocker_pid);
1228 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1230 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
1231 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1234 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1235 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1236 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1237 void lcp2_forcerebalance(struct ctdb_context *ctdb, uint32_t pnn);
1238 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap, client_async_callback fail_callback, void *callback_data);
1240 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1242 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1243 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1244 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1245 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1246 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1247 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1248 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1250 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1251 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1252 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1253 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1254 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1255 TALLOC_CTX *mem_ctx,
1256 void (*callback)(struct ctdb_context *, int, void *),
1259 enum ctdb_eventscript_call call,
1260 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1261 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1263 void set_nonblocking(int fd);
1264 void set_close_on_exec(int fd);
1266 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1268 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1270 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1272 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1273 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1274 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1275 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1276 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1277 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1279 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1281 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1283 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1284 struct timeval timeout,
1286 struct ctdb_tunable *tunables);
1288 void ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1290 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1291 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1292 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1293 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1296 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1297 int ctdb_sys_close_capture_socket(void *private_data);
1298 int ctdb_sys_read_tcp_packet(int s, void *private_data, ctdb_sock_addr *src, ctdb_sock_addr *dst, uint32_t *ack_seq, uint32_t *seq);
1300 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1301 struct timeval timeout,
1303 struct ctdb_control_killtcp *killtcp);
1305 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1306 struct timeval timeout,
1308 struct ctdb_control_ip_iface *pub);
1310 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1311 struct timeval timeout,
1313 struct ctdb_control_ip_iface *pub);
1315 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1316 struct timeval timeout,
1318 ctdb_sock_addr *addr,
1319 const char *ifname);
1321 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1322 struct timeval timeout,
1324 TALLOC_CTX *mem_ctx,
1325 ctdb_sock_addr *addr,
1326 struct ctdb_control_tcp_tickle_list **list);
1329 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1332 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1334 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1336 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1338 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1341 int ctdb_attach_databases(struct ctdb_context *ctdb);
1343 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1344 struct ctdb_req_control *c,
1345 TDB_DATA recdata, bool *async_reply);
1346 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1347 struct ctdb_req_control *c, TDB_DATA recdata,
1349 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1350 struct ctdb_req_control *c,
1351 TDB_DATA recdata, bool *async_reply);
1353 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1354 struct ctdb_req_control *c,
1355 TDB_DATA recdata, bool *async_reply);
1357 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1359 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1360 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1361 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1362 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1363 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1364 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1369 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1370 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1372 void ctdb_block_signal(int signum);
1373 void ctdb_unblock_signal(int signum);
1374 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1375 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
1376 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1377 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1379 struct client_async_data {
1380 enum ctdb_controls opcode;
1381 bool dont_log_errors;
1383 uint32_t fail_count;
1384 client_async_callback callback;
1385 client_async_callback fail_callback;
1386 void *callback_data;
1388 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1389 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1390 int ctdb_client_async_control(struct ctdb_context *ctdb,
1391 enum ctdb_controls opcode,
1394 struct timeval timeout,
1395 bool dont_log_errors,
1397 client_async_callback client_callback,
1398 client_async_callback fail_callback,
1399 void *callback_data);
1401 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1403 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1405 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1406 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1408 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1409 struct ctdb_req_control *c);
1410 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1411 struct ctdb_req_control *c);
1412 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1413 struct ctdb_req_control *c,
1416 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1417 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1418 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1420 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1421 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1423 extern int script_log_level;
1424 extern bool fast_start;
1425 extern const char *ctdbd_pidfile;
1427 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1431 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1432 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1434 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
1435 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1437 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1438 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1440 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1441 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1443 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1444 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1445 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1446 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1447 void ctdb_ban_self(struct ctdb_context *ctdb);
1449 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1451 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1453 int start_syslog_daemon(struct ctdb_context *ctdb);
1455 /* Where to send the log messages back to */
1456 struct ctdb_get_log_addr {
1462 extern int log_ringbuf_size;
1464 void ctdb_collect_log(struct ctdb_context *ctdb, struct ctdb_get_log_addr *log_addr);
1465 void ctdb_clear_log(struct ctdb_context *ctdb);
1466 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1467 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1468 void ctdb_log_ringbuffer_free(void);
1470 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1471 struct ctdb_context *ctdb,
1472 const char *log_prefix,
1473 void (*logfn)(const char *, uint16_t, void *),
1474 void *logfn_private, pid_t *pid);
1476 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1477 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1479 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1483 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1484 struct ctdb_db_context *ctdb_db);
1485 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1486 struct ctdb_db_context *ctdb_db,
1487 const char *reason,/* NULL means healthy */
1488 int num_healthy_nodes);
1489 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1491 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1493 void ctdb_fault_setup(void);
1495 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1496 struct ctdb_all_public_ips *ips);
1497 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1498 struct ctdb_public_ip *ip);
1500 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1502 int ctdb_statistics_init(struct ctdb_context *ctdb);
1504 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1505 struct ctdb_req_control *c,
1508 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1510 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1513 * structure to pass to a schedule_for_deletion_control
1515 struct ctdb_control_schedule_for_deletion {
1517 struct ctdb_ltdb_header hdr;
1519 uint8_t key[1]; /* key[] */
1522 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1526 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1527 const struct ctdb_ltdb_header *hdr,
1530 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1531 const struct ctdb_ltdb_header *hdr,
1532 const TDB_DATA key);
1534 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1536 /* For unit testing ctdb_transaction.c. */
1537 struct ctdb_public_ip_list {
1538 struct ctdb_public_ip_list *next;
1540 ctdb_sock_addr addr;
1542 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1544 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1546 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1548 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db, TDB_DATA key, struct ctdb_ltdb_header *header, TDB_DATA data);
1550 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1552 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db, TDB_DATA key, struct ctdb_req_header *hdr, deferred_requeue_fn fn, void *call_context);
1554 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1556 int ctdb_null_func(struct ctdb_call_info *call);
1558 int ctdb_fetch_func(struct ctdb_call_info *call);
1560 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1562 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1566 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1569 description for a message to reload all ips via recovery master/daemon
1571 struct reloadips_all_reply {
1576 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1578 int ctdb_start_monitoring_interfaces(struct ctdb_context *ctdb);
1580 /* from server/ctdb_lock.c */
1581 struct lock_request;
1583 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
1584 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
1586 void ctdb_lock_free_request_context(struct lock_request *lock_req);
1588 struct lock_request *ctdb_lock_record(struct ctdb_db_context *ctdb_db,
1591 void (*callback)(void *, bool),
1592 void *private_data);
1594 struct lock_request *ctdb_lock_db(struct ctdb_db_context *ctdb_db,
1596 void (*callback)(void *, bool),
1597 void *private_data);
1599 struct lock_request *ctdb_lock_alldb_prio(struct ctdb_context *ctdb,
1602 void (*callback)(void *, bool),
1603 void *private_data);
1605 struct lock_request *ctdb_lock_alldb(struct ctdb_context *ctdb,
1607 void (*callback)(void *, bool),
1608 void *private_data);