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_default_interval;
112 uint32_t vacuum_max_run_time;
113 uint32_t repack_limit;
114 uint32_t vacuum_limit;
115 uint32_t vacuum_min_interval;
116 uint32_t vacuum_max_interval;
117 uint32_t max_queue_depth_drop_msg;
118 uint32_t use_status_events_for_monitoring;
119 uint32_t allow_unhealthy_db_read;
120 uint32_t stat_history_interval;
121 uint32_t deferred_attach_timeout;
122 uint32_t vacuum_fast_path_count;
123 uint32_t lcp2_public_ip_assignment;
124 uint32_t allow_client_db_attach;
125 uint32_t recover_pdb_by_seqnum;
129 an installed ctdb remote call
131 struct ctdb_registered_call {
132 struct ctdb_registered_call *next, *prev;
138 this address structure might need to be generalised later for some
141 struct ctdb_address {
147 check that a pnn is valid
149 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
152 /* called from the queue code when a packet comes in. Called with data==NULL
154 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
157 /* used for callbacks in ctdb_control requests */
158 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
159 int32_t status, TDB_DATA data,
160 const char *errormsg,
163 structure describing a connected client in the daemon
166 struct ctdb_context *ctdb;
168 struct ctdb_queue *queue;
171 struct ctdb_tcp_list *tcp_list;
173 uint32_t num_persistent_updates;
174 struct ctdb_client_notify_list *notify;
179 /* state associated with a public ip address */
181 struct ctdb_vnn *prev, *next;
183 struct ctdb_iface *iface;
185 ctdb_sock_addr public_address;
186 uint8_t public_netmask_bits;
188 /* the node number that is serving this public address, if any.
189 If no node serves this ip it is set to -1 */
192 /* List of clients to tickle for this public address */
193 struct ctdb_tcp_array *tcp_array;
195 /* whether we need to update the other nodes with changes to our list
196 of connected clients */
197 bool tcp_update_needed;
199 /* a context to hang sending gratious arp events off */
200 TALLOC_CTX *takeover_ctx;
202 struct ctdb_kill_tcp *killtcp;
206 state associated with one node
209 struct ctdb_context *ctdb;
210 struct ctdb_address address;
211 const char *name; /* for debug messages */
212 void *private_data; /* private to transport */
216 /* used by the dead node monitoring */
221 /* used to track node capabilities, is only valid/tracked inside the
224 uint32_t capabilities;
226 /* a list of controls pending to this node, so we can time them out quickly
227 if the node becomes disconnected */
228 struct daemon_control_state *pending_controls;
230 /* used by the recovery daemon when distributing ip addresses
231 across the nodes. it needs to know which public ip's can be handled
234 struct ctdb_all_public_ips *known_public_ips;
235 struct ctdb_all_public_ips *available_public_ips;
236 /* used by the recovery dameon to track when a node should be banned */
237 struct ctdb_banning_state *ban_state;
241 transport specific methods
243 struct ctdb_methods {
244 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
245 int (*start)(struct ctdb_context *); /* start the transport */
246 int (*add_node)(struct ctdb_node *); /* setup a new node */
247 int (*connect_node)(struct ctdb_node *); /* connect to node */
248 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
249 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
250 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
251 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
255 transport calls up to the ctdb layer
257 struct ctdb_upcalls {
258 /* recv_pkt is called when a packet comes in */
259 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
261 /* node_dead is called when an attempt to send to a node fails */
262 void (*node_dead)(struct ctdb_node *);
264 /* node_connected is called when a connection to a node is established */
265 void (*node_connected)(struct ctdb_node *);
268 /* list of message handlers - needs to be changed to a more efficient data
269 structure so we can find a message handler given a srvid quickly */
270 struct ctdb_message_list {
271 struct ctdb_context *ctdb;
272 struct ctdb_message_list *next, *prev;
274 ctdb_msg_fn_t message_handler;
275 void *message_private;
278 /* additional data required for the daemon mode */
279 struct ctdb_daemon_data {
282 struct ctdb_queue *queue;
286 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
288 if (value > ctdb->statistics.counter) { \
289 ctdb->statistics.counter = c->hopcount; \
291 if (value > ctdb->statistics_current.counter) { \
292 ctdb->statistics_current.counter = c->hopcount; \
296 #define CTDB_INCREMENT_STAT(ctdb, counter) \
298 ctdb->statistics.counter++; \
299 ctdb->statistics_current.counter++; \
302 #define CTDB_DECREMENT_STAT(ctdb, counter) \
304 if (ctdb->statistics.counter > 0) \
305 ctdb->statistics.counter--; \
306 if (ctdb->statistics_current.counter > 0) \
307 ctdb->statistics_current.counter--; \
310 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
312 if (value > ctdb->statistics.counter.max) \
313 ctdb->statistics.counter.max = value; \
314 if (value > ctdb->statistics_current.counter.max) \
315 ctdb->statistics_current.counter.max = value; \
317 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
318 ctdb->statistics.counter.min = value; \
319 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
320 ctdb->statistics_current.counter.min = value; \
322 ctdb->statistics.counter.total += value; \
323 ctdb->statistics_current.counter.total += value; \
325 ctdb->statistics.counter.num++; \
326 ctdb->statistics_current.counter.num++; \
328 if (ctdb->tunable.reclock_latency_ms != 0) { \
329 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
330 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
336 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
338 double l = timeval_elapsed(&t); \
340 if (l > ctdb->statistics.counter.max) \
341 ctdb->statistics.counter.max = l; \
342 if (l > ctdb->statistics_current.counter.max) \
343 ctdb->statistics_current.counter.max = l; \
345 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
346 ctdb->statistics.counter.min = l; \
347 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
348 ctdb->statistics_current.counter.min = l; \
350 ctdb->statistics.counter.total += l; \
351 ctdb->statistics_current.counter.total += l; \
353 ctdb->statistics.counter.num++; \
354 ctdb->statistics_current.counter.num++; \
356 if (ctdb->tunable.log_latency_ms !=0) { \
357 if (l*1000 > ctdb->tunable.log_latency_ms) { \
358 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
367 #define INVALID_GENERATION 1
368 /* table that contains the mapping between a hash value and lmaster
370 struct ctdb_vnn_map {
377 a wire representation of the vnn map
379 struct ctdb_vnn_map_wire {
385 /* a structure that contains the elements required for the write record
388 struct ctdb_write_record {
392 unsigned char blob[1];
395 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
397 #define CTDB_MONITORING_ACTIVE 0
398 #define CTDB_MONITORING_DISABLED 1
400 /* The different capabilities of the ctdb daemon. */
401 #define CTDB_CAP_RECMASTER 0x00000001
402 #define CTDB_CAP_LMASTER 0x00000002
403 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
404 #define CTDB_CAP_LVS 0x00000004
405 /* This capability is set if NATGW is enabled */
406 #define CTDB_CAP_NATGW 0x00000008
408 #define NUM_DB_PRIORITIES 3
409 /* main state of the ctdb daemon */
410 struct ctdb_context {
411 struct tevent_context *ev;
412 struct timeval ctdbd_start_time;
413 struct timeval last_recovery_started;
414 struct timeval last_recovery_finished;
415 uint32_t recovery_mode;
416 TALLOC_CTX *tickle_update_context;
417 TALLOC_CTX *keepalive_ctx;
418 TALLOC_CTX *check_public_ifaces_ctx;
419 struct ctdb_tunable tunable;
420 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
421 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
422 bool freeze_transaction_started;
423 uint32_t freeze_transaction_id;
424 struct ctdb_address address;
426 const char *db_directory;
427 const char *db_directory_persistent;
428 const char *db_directory_state;
429 struct tdb_wrap *db_persistent_health;
430 uint32_t db_persistent_startup_generation;
431 uint64_t db_persistent_check_errors;
432 uint64_t max_persistent_check_errors;
433 const char *transport;
434 char *recovery_lock_file;
435 int recovery_lock_fd;
436 uint32_t pnn; /* our own pnn */
438 uint32_t num_connected;
440 uint32_t capabilities;
441 struct idr_context *idr;
443 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
444 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
445 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
446 struct ctdb_iface *ifaces; /* list of local interfaces */
448 const struct ctdb_methods *methods; /* transport methods */
449 const struct ctdb_upcalls *upcalls; /* transport upcalls */
450 void *private_data; /* private to transport */
451 struct ctdb_db_context *db_list;
452 struct ctdb_message_list *message_list;
453 struct ctdb_daemon_data daemon;
454 struct ctdb_statistics statistics;
455 struct ctdb_statistics statistics_current;
456 #define MAX_STAT_HISTORY 100
457 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
458 struct ctdb_vnn_map *vnn_map;
459 uint32_t num_clients;
460 uint32_t recovery_master;
461 struct ctdb_call_state *pending_calls;
462 struct ctdb_client_ip *client_ip_list;
463 struct trbt_tree *server_ids;
465 void *saved_scheduler_param;
466 const char *event_script_dir;
467 const char *notification_script;
468 const char *default_public_interface;
474 struct ctdb_monitor_state *monitor;
475 struct ctdb_log_state *log;
476 int start_as_disabled;
477 int start_as_stopped;
479 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
480 uint32_t *recd_ping_count;
481 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
483 TALLOC_CTX *event_script_ctx;
485 struct ctdb_event_script_state *current_monitor;
486 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
488 TALLOC_CTX *banning_ctx;
490 struct ctdb_vacuum_child_context *vacuumers;
492 /* mapping from pid to ctdb_client * */
493 struct ctdb_client_pid_list *client_pids;
495 /* used in the recovery daemon to remember the ip allocation */
496 struct trbt_tree *ip_tree;
498 /* Used to defer db attach requests while in recovery mode */
499 struct ctdb_deferred_attach_context *deferred_attach;
502 struct ctdb_db_context {
503 struct ctdb_db_context *next, *prev;
504 struct ctdb_context *ctdb;
508 bool readonly; /* Do we support read-only delegations ? */
511 struct tdb_wrap *ltdb;
512 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
513 struct ctdb_registered_call *calls; /* list of registered calls */
515 struct timed_event *seqnum_update;
516 struct ctdb_traverse_local_handle *traverse;
517 bool transaction_active;
518 struct ctdb_vacuum_handle *vacuum_handle;
519 char *unhealthy_reason;
520 int pending_requests;
521 struct lockwait_handle *lockwait_active;
522 struct lockwait_handle *lockwait_overflow;
523 struct revokechild_handle *revokechild_active;
524 struct ctdb_persistent_state *persistent_state;
525 struct trbt_tree *delete_queue;
526 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
528 struct ctdb_ltdb_header *header,
531 /* used to track which records we are currently fetching
532 so we can avoid sending duplicate fetch requests
534 struct trbt_tree *deferred_fetch;
538 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
539 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
540 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
541 return -1; }} while (0)
543 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
544 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
545 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
548 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
549 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
550 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
551 return NULL; }} while (0)
553 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
554 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
555 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
559 structure passed in set_call control
561 struct ctdb_control_set_call {
568 struct for kill_tcp control
570 struct ctdb_control_killtcp {
571 ctdb_sock_addr src_addr;
572 ctdb_sock_addr dst_addr;
576 struct holding a ctdb_sock_addr and an interface name,
577 used to add/remove public addresses
579 struct ctdb_control_ip_iface {
587 struct holding a ctdb_sock_addr and an interface name,
588 used for send_gratious_arp
590 struct ctdb_control_gratious_arp {
598 persistent store control - update this record on all other nodes
600 struct ctdb_control_persistent_store {
607 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
609 struct ctdb_node_flag_change {
616 struct for admin setting a ban
618 struct ctdb_ban_info {
623 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
625 #define CTDB_LMASTER_ANY 0xffffffff
628 state of a in-progress ctdb call
630 struct ctdb_call_state {
631 struct ctdb_call_state *next, *prev;
632 enum call_state state;
634 struct ctdb_req_call *c;
635 struct ctdb_db_context *ctdb_db;
637 struct ctdb_call *call;
640 void (*fn)(struct ctdb_call_state *);
646 /* used for fetch_lock */
647 struct ctdb_fetch_handle {
648 struct ctdb_db_context *ctdb_db;
651 struct ctdb_ltdb_header header;
654 /* internal prototypes */
655 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
656 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
657 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
658 int ctdb_parse_address(struct ctdb_context *ctdb,
659 TALLOC_CTX *mem_ctx, const char *str,
660 struct ctdb_address *address);
661 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
662 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
663 uint32_t ctdb_hash(const TDB_DATA *key);
664 uint32_t ctdb_hash_string(const char *str);
665 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
666 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
667 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
668 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
669 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
670 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
672 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
673 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
674 TDB_DATA key, struct ctdb_ltdb_header *header,
675 TALLOC_CTX *mem_ctx, TDB_DATA *data);
676 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
677 struct ctdb_ltdb_header *header, TDB_DATA data);
678 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
679 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
680 TDB_DATA key, struct ctdb_ltdb_header *header,
681 TALLOC_CTX *mem_ctx, TDB_DATA *data);
682 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
683 struct ctdb_req_control *c,
685 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
686 struct ctdb_req_control *c,
688 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
689 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
690 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
691 TDB_DATA key, struct ctdb_req_header *hdr,
692 void (*recv_pkt)(void *, struct ctdb_req_header *),
693 void *recv_context, bool ignore_generation);
694 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
695 TDB_DATA key, struct ctdb_ltdb_header *header,
696 struct ctdb_req_header *hdr, TDB_DATA *data,
697 void (*recv_pkt)(void *, struct ctdb_req_header *),
698 void *recv_context, bool ignore_generation);
699 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
701 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
702 struct ctdb_call *call,
703 struct ctdb_ltdb_header *header,
707 int ctdbd_start(struct ctdb_context *ctdb);
708 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
709 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
712 queue a packet for sending
714 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
717 setup the fd used by the queue
719 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
722 setup a packet queue on a socket
724 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
725 TALLOC_CTX *mem_ctx, int fd, int alignment,
727 ctdb_queue_cb_fn_t callback,
728 void *private_data, const char *fmt, ...)
729 PRINTF_ATTRIBUTE(7,8);
732 allocate a packet for use in client<->daemon communication
734 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
736 enum ctdb_operation operation,
737 size_t length, size_t slength,
739 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
740 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
742 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
744 enum ctdb_operation operation,
745 size_t length, size_t slength,
747 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
748 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
750 int ctdb_queue_length(struct ctdb_queue *queue);
753 lock a record in the ltdb, given a key
755 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
758 unlock a record in the ltdb, given a key
760 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
764 make a ctdb call to the local daemon - async send. Called from client context.
766 This constructs a ctdb_call request and queues it for processing.
767 This call never blocks.
769 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
770 struct ctdb_call *call);
773 make a recv call to the local ctdb daemon - called from client context
775 This is called when the program wants to wait for a ctdb_call to complete and get the
776 results. This call will block unless the call has already completed.
778 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
780 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
781 uint64_t srvid, TDB_DATA data);
786 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
787 uint64_t srvid, TDB_DATA data);
790 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
792 void (*callback)(void *), void *private_data);
794 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
795 struct ctdb_call *call);
797 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
799 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
800 struct ctdb_call *call,
801 struct ctdb_ltdb_header *header);
803 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
804 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
805 TDB_DATA *data, bool updatetdb);
807 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
809 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
811 int ctdb_socket_connect(struct ctdb_context *ctdb);
812 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
814 #define CTDB_BAD_REQID ((uint32_t)-1)
815 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
816 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
817 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
819 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
820 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
822 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
823 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
825 ctdb_control_callback_fn_t callback,
828 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
829 TDB_DATA *outdata, uint64_t tdb_flags,
830 bool persistent, uint32_t client_id,
831 struct ctdb_req_control *c,
834 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
835 ctdb_fn_t fn, int id);
837 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
838 uint32_t opcode, uint32_t flags, TDB_DATA data,
839 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
840 struct timeval *timeout, char **errormsg);
841 int ctdb_control_recv(struct ctdb_context *ctdb,
842 struct ctdb_client_control_state *state,
844 TDB_DATA *outdata, int32_t *status, char **errormsg);
846 struct ctdb_client_control_state *
847 ctdb_control_send(struct ctdb_context *ctdb,
848 uint32_t destnode, uint64_t srvid,
849 uint32_t opcode, uint32_t flags, TDB_DATA data,
851 struct timeval *timeout,
857 #define CHECK_CONTROL_DATA_SIZE(size) do { \
858 if (indata.dsize != size) { \
859 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
860 opcode, (unsigned)indata.dsize, (unsigned)size)); \
865 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
866 if (indata.dsize < size) { \
867 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
868 opcode, (unsigned)indata.dsize, (unsigned)size)); \
873 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
874 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
875 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
876 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
877 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
878 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
881 /* structure used for pulldb control */
882 struct ctdb_control_pulldb {
887 /* structure used for sending lists of records */
888 struct ctdb_marshall_buffer {
894 /* set dmaster control structure */
895 struct ctdb_control_set_dmaster {
901 structure for setting a tunable
903 struct ctdb_control_set_tunable {
910 structure for getting a tunable
912 struct ctdb_control_get_tunable {
918 structure for listing tunables
920 struct ctdb_control_list_tunable {
922 /* returns a : separated list of tunable names */
927 struct ctdb_node_and_flagsv4 {
930 struct sockaddr_in sin;
933 struct ctdb_node_mapv4 {
935 struct ctdb_node_and_flagsv4 nodes[1];
938 struct ctdb_control_wipe_database {
940 uint32_t transaction_id;
944 state of a in-progress ctdb call in client
946 struct ctdb_client_call_state {
947 enum call_state state;
949 struct ctdb_db_context *ctdb_db;
950 struct ctdb_call *call;
952 void (*fn)(struct ctdb_client_call_state *);
958 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
963 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
964 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
965 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
966 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
967 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
968 TDB_DATA *outdata, uint32_t srcnode);
970 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
972 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
973 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
974 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
975 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
978 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
979 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
981 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
982 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
984 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
986 struct ctdb_ltdb_header *header,
987 TDB_DATA *key, TDB_DATA *data);
989 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
990 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
991 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
993 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
994 struct ctdb_req_control *c,
995 TDB_DATA indata, bool *async_reply,
996 const char **errormsg);
997 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
998 TDB_DATA *outdata, int32_t status, const char *errormsg);
1000 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1001 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1003 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1004 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1006 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1008 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1009 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1010 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1011 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1012 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1013 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1014 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1015 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1016 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1019 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1020 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1021 void ctdb_node_dead(struct ctdb_node *node);
1022 void ctdb_node_connected(struct ctdb_node *node);
1023 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1024 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1025 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1026 pid_t ctdb_fork(struct ctdb_context *ctdb);
1027 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1028 struct ctdb_req_control *c,
1031 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1032 struct ctdb_req_control *c,
1035 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1036 struct ctdb_req_control *c,
1039 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1040 struct ctdb_req_control *c,
1043 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1044 struct ctdb_req_control *c,
1046 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1047 struct ctdb_req_control *c,
1050 struct ctdb_public_ipv4 {
1052 struct sockaddr_in sin;
1055 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1056 uint32_t destnode, struct ctdb_public_ip *ip);
1057 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1058 uint32_t destnode, struct ctdb_public_ip *ip);
1060 struct ctdb_all_public_ipsv4 {
1062 struct ctdb_public_ipv4 ips[1];
1065 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1066 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1067 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1068 struct timeval timeout,
1070 TALLOC_CTX *mem_ctx,
1071 struct ctdb_all_public_ips **ips);
1072 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1073 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1074 struct timeval timeout, uint32_t destnode,
1075 TALLOC_CTX *mem_ctx,
1077 struct ctdb_all_public_ips **ips);
1078 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1079 struct timeval timeout, uint32_t destnode,
1080 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1083 #define CTDB_IFACE_SIZE IFNAMSIZ
1085 #define CTDB_IFACE_SIZE 16
1088 struct ctdb_control_iface_info {
1089 char name[CTDB_IFACE_SIZE+2];
1090 uint16_t link_state;
1091 uint32_t references;
1094 struct ctdb_control_public_ip_info {
1095 struct ctdb_public_ip ip;
1096 uint32_t active_idx;
1098 struct ctdb_control_iface_info ifaces[1];
1101 struct ctdb_control_get_ifaces {
1103 struct ctdb_control_iface_info ifaces[1];
1106 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1107 struct ctdb_req_control *c,
1110 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1111 struct ctdb_req_control *c,
1113 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1114 struct ctdb_req_control *c,
1116 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1117 struct timeval timeout, uint32_t destnode,
1118 TALLOC_CTX *mem_ctx,
1119 const ctdb_sock_addr *addr,
1120 struct ctdb_control_public_ip_info **info);
1121 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1122 struct timeval timeout, uint32_t destnode,
1123 TALLOC_CTX *mem_ctx,
1124 struct ctdb_control_get_ifaces **ifaces);
1125 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1126 struct timeval timeout, uint32_t destnode,
1127 TALLOC_CTX *mem_ctx,
1128 const struct ctdb_control_iface_info *info);
1130 /* from takeover/system.c */
1131 uint32_t uint16_checksum(uint16_t *data, size_t n);
1132 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1133 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1134 bool ctdb_sys_check_iface_exists(const char *iface);
1135 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1136 const ctdb_sock_addr *src,
1137 uint32_t seq, uint32_t ack, int rst);
1139 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1140 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1143 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1144 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1145 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1146 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1148 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1150 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1151 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1152 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1153 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1154 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1155 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1156 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1158 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1159 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1160 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1161 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1162 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1163 TALLOC_CTX *mem_ctx,
1164 void (*callback)(struct ctdb_context *, int, void *),
1167 enum ctdb_eventscript_call call,
1168 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1169 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1171 void set_nonblocking(int fd);
1172 void set_close_on_exec(int fd);
1174 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1176 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1178 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1180 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1181 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1182 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1183 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1184 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1186 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1188 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1190 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1191 struct timeval timeout,
1193 struct ctdb_tunable *tunables);
1195 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1197 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1198 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1199 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1200 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1203 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1204 int ctdb_sys_close_capture_socket(void *private_data);
1205 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);
1207 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1208 struct timeval timeout,
1210 struct ctdb_control_killtcp *killtcp);
1212 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1213 struct timeval timeout,
1215 struct ctdb_control_ip_iface *pub);
1217 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1218 struct timeval timeout,
1220 struct ctdb_control_ip_iface *pub);
1222 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1223 struct timeval timeout,
1225 ctdb_sock_addr *addr,
1226 const char *ifname);
1228 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1229 struct timeval timeout,
1231 TALLOC_CTX *mem_ctx,
1232 ctdb_sock_addr *addr,
1233 struct ctdb_control_tcp_tickle_list **list);
1236 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1239 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1241 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1243 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1245 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1248 int ctdb_attach_databases(struct ctdb_context *ctdb);
1250 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1251 struct ctdb_req_control *c,
1252 TDB_DATA recdata, bool *async_reply);
1253 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1254 struct ctdb_req_control *c, TDB_DATA recdata,
1256 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1257 struct ctdb_req_control *c,
1258 TDB_DATA recdata, bool *async_reply);
1260 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1261 struct ctdb_req_control *c,
1262 TDB_DATA recdata, bool *async_reply);
1264 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1266 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1267 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1268 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1269 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1270 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1271 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1276 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1277 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1279 void ctdb_block_signal(int signum);
1280 void ctdb_unblock_signal(int signum);
1281 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1282 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1283 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1285 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1287 struct client_async_data {
1288 enum ctdb_controls opcode;
1289 bool dont_log_errors;
1291 uint32_t fail_count;
1292 client_async_callback callback;
1293 client_async_callback fail_callback;
1294 void *callback_data;
1296 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1297 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1298 int ctdb_client_async_control(struct ctdb_context *ctdb,
1299 enum ctdb_controls opcode,
1302 struct timeval timeout,
1303 bool dont_log_errors,
1305 client_async_callback client_callback,
1306 client_async_callback fail_callback,
1307 void *callback_data);
1309 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1311 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1313 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1314 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1316 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1317 struct ctdb_req_control *c);
1318 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1319 struct ctdb_req_control *c);
1320 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1321 struct ctdb_req_control *c,
1324 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1325 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1326 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1328 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1329 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1331 extern int script_log_level;
1332 extern bool fast_start;
1334 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1338 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1339 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1341 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1342 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1344 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1345 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1347 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1348 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1350 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1351 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1352 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1353 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1354 void ctdb_ban_self(struct ctdb_context *ctdb);
1356 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1358 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1360 int start_syslog_daemon(struct ctdb_context *ctdb);
1362 /* Where to send the log messages back to */
1363 struct ctdb_get_log_addr {
1369 extern int log_ringbuf_size;
1371 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1372 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1375 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1376 struct ctdb_context *ctdb,
1377 const char *log_prefix,
1378 void (*logfn)(const char *, uint16_t, void *),
1379 void *logfn_private, pid_t *pid);
1381 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1382 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1384 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1388 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1389 struct ctdb_db_context *ctdb_db);
1390 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1391 struct ctdb_db_context *ctdb_db,
1392 const char *reason,/* NULL means healthy */
1393 int num_healthy_nodes);
1394 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1396 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1398 void ctdb_fault_setup(void);
1400 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1401 struct ctdb_all_public_ips *ips);
1402 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1403 struct ctdb_public_ip *ip);
1405 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1407 int ctdb_statistics_init(struct ctdb_context *ctdb);
1409 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1410 struct ctdb_req_control *c,
1413 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1415 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1418 * structure to pass to a schedule_for_deletion_control
1420 struct ctdb_control_schedule_for_deletion {
1422 struct ctdb_ltdb_header hdr;
1424 uint8_t key[1]; /* key[] */
1427 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1431 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1432 const struct ctdb_ltdb_header *hdr,
1435 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1437 /* For unit testing ctdb_transaction.c. */
1438 struct ctdb_public_ip_list {
1439 struct ctdb_public_ip_list *next;
1441 ctdb_sock_addr addr;
1443 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1445 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1447 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1449 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);
1451 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1453 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);
1455 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1457 int ctdb_null_func(struct ctdb_call_info *call);
1459 int ctdb_fetch_func(struct ctdb_call_info *call);
1461 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);