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 * Structures to support SRVID requests and replies
29 struct srvid_request {
34 struct srvid_request_data {
41 a tcp connection description
42 also used by tcp_add and tcp_remove controls
44 struct ctdb_tcp_connection {
45 ctdb_sock_addr src_addr;
46 ctdb_sock_addr dst_addr;
49 /* the wire representation for a tcp tickle array */
50 struct ctdb_tcp_wire_array {
52 struct ctdb_tcp_connection connections[1];
55 /* the list of tcp tickles used by get/set tcp tickle list */
56 struct ctdb_control_tcp_tickle_list {
58 struct ctdb_tcp_wire_array tickles;
62 array of tcp connections
64 struct ctdb_tcp_array {
66 struct ctdb_tcp_connection *connections;
70 /* all tunable variables go in here */
72 uint32_t max_redirect_count;
73 uint32_t seqnum_interval; /* unit is ms */
74 uint32_t control_timeout;
75 uint32_t traverse_timeout;
76 uint32_t keepalive_interval;
77 uint32_t keepalive_limit;
78 uint32_t recover_timeout;
79 uint32_t recover_interval;
80 uint32_t election_timeout;
81 uint32_t takeover_timeout;
82 uint32_t monitor_interval;
83 uint32_t tickle_update_interval;
84 uint32_t script_timeout;
85 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
86 uint32_t script_unhealthy_on_timeout; /* obsolete */
87 uint32_t recovery_grace_period;
88 uint32_t recovery_ban_period;
89 uint32_t database_hash_size;
90 uint32_t database_max_dead;
91 uint32_t rerecovery_timeout;
93 uint32_t deterministic_public_ips;
94 uint32_t reclock_ping_period;
95 uint32_t no_ip_failback;
96 uint32_t disable_ip_failover;
97 uint32_t verbose_memory_names;
98 uint32_t recd_ping_timeout;
99 uint32_t recd_ping_failcount;
100 uint32_t log_latency_ms;
101 uint32_t reclock_latency_ms;
102 uint32_t recovery_drop_all_ips;
103 uint32_t verify_recovery_lock;
104 uint32_t vacuum_interval;
105 uint32_t vacuum_max_run_time;
106 uint32_t repack_limit;
107 uint32_t vacuum_limit;
108 uint32_t max_queue_depth_drop_msg;
109 uint32_t use_status_events_for_monitoring;
110 uint32_t allow_unhealthy_db_read;
111 uint32_t stat_history_interval;
112 uint32_t deferred_attach_timeout;
113 uint32_t vacuum_fast_path_count;
114 uint32_t lcp2_public_ip_assignment;
115 uint32_t allow_client_db_attach;
116 uint32_t recover_pdb_by_seqnum;
117 uint32_t deferred_rebalance_on_node_add;
118 uint32_t fetch_collapse;
119 uint32_t hopcount_make_sticky;
120 uint32_t sticky_duration;
121 uint32_t sticky_pindown;
122 uint32_t no_ip_takeover;
123 uint32_t db_record_count_warn;
124 uint32_t db_record_size_warn;
125 uint32_t db_size_warn;
126 uint32_t pulldb_preallocation_size;
127 uint32_t no_ip_host_on_all_disabled;
128 uint32_t samba3_hack;
129 uint32_t mutex_enabled;
130 uint32_t lock_processes_per_db;
134 an installed ctdb remote call
136 struct ctdb_registered_call {
137 struct ctdb_registered_call *next, *prev;
143 check that a pnn is valid
145 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
148 /* called from the queue code when a packet comes in. Called with data==NULL
150 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
153 /* used for callbacks in ctdb_control requests */
154 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
155 int32_t status, TDB_DATA data,
156 const char *errormsg,
159 structure describing a connected client in the daemon
162 struct ctdb_context *ctdb;
164 struct ctdb_queue *queue;
167 struct ctdb_tcp_list *tcp_list;
169 uint32_t num_persistent_updates;
170 struct ctdb_client_notify_list *notify;
175 /* state associated with a public ip address */
177 struct ctdb_vnn *prev, *next;
179 struct ctdb_iface *iface;
181 ctdb_sock_addr public_address;
182 uint8_t public_netmask_bits;
184 /* the node number that is serving this public address, if any.
185 If no node serves this ip it is set to -1 */
188 /* List of clients to tickle for this public address */
189 struct ctdb_tcp_array *tcp_array;
191 /* whether we need to update the other nodes with changes to our list
192 of connected clients */
193 bool tcp_update_needed;
195 /* a context to hang sending gratious arp events off */
196 TALLOC_CTX *takeover_ctx;
198 struct ctdb_kill_tcp *killtcp;
200 /* Set to true any time an update to this VNN is in flight.
201 This helps to avoid races. */
202 bool update_in_flight;
204 /* If CTDB_CONTROL_DEL_PUBLIC_IP is received for this IP
205 * address then this flag is set. It will be deleted in the
206 * release IP callback. */
211 state associated with one node
214 struct ctdb_context *ctdb;
215 ctdb_sock_addr address;
216 const char *name; /* for debug messages */
217 void *private_data; /* private to transport */
221 /* used by the dead node monitoring */
226 /* used to track node capabilities, is only valid/tracked inside the
229 uint32_t capabilities;
231 /* a list of controls pending to this node, so we can time them out quickly
232 if the node becomes disconnected */
233 struct daemon_control_state *pending_controls;
235 /* used by the recovery daemon when distributing ip addresses
236 across the nodes. it needs to know which public ip's can be handled
239 struct ctdb_all_public_ips *known_public_ips;
240 struct ctdb_all_public_ips *available_public_ips;
241 /* used by the recovery dameon to track when a node should be banned */
242 struct ctdb_banning_state *ban_state;
246 transport specific methods
248 struct ctdb_methods {
249 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
250 int (*start)(struct ctdb_context *); /* start the transport */
251 int (*add_node)(struct ctdb_node *); /* setup a new node */
252 int (*connect_node)(struct ctdb_node *); /* connect to node */
253 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
254 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
255 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
256 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
260 transport calls up to the ctdb layer
262 struct ctdb_upcalls {
263 /* recv_pkt is called when a packet comes in */
264 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
266 /* node_dead is called when an attempt to send to a node fails */
267 void (*node_dead)(struct ctdb_node *);
269 /* node_connected is called when a connection to a node is established */
270 void (*node_connected)(struct ctdb_node *);
273 /* list of message handlers - needs to be changed to a more efficient data
274 structure so we can find a message handler given a srvid quickly */
275 struct ctdb_message_list_header {
276 struct ctdb_message_list_header *next, *prev;
277 struct ctdb_context *ctdb;
279 struct ctdb_message_list *m;
281 struct ctdb_message_list {
282 struct ctdb_message_list *next, *prev;
283 struct ctdb_message_list_header *h;
284 ctdb_msg_fn_t message_handler;
285 void *message_private;
288 /* additional data required for the daemon mode */
289 struct ctdb_daemon_data {
292 struct ctdb_queue *queue;
296 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
298 if (value > ctdb->statistics.counter) { \
299 ctdb->statistics.counter = c->hopcount; \
301 if (value > ctdb->statistics_current.counter) { \
302 ctdb->statistics_current.counter = c->hopcount; \
306 #define CTDB_INCREMENT_STAT(ctdb, counter) \
308 ctdb->statistics.counter++; \
309 ctdb->statistics_current.counter++; \
312 #define CTDB_DECREMENT_STAT(ctdb, counter) \
314 if (ctdb->statistics.counter > 0) \
315 ctdb->statistics.counter--; \
316 if (ctdb->statistics_current.counter > 0) \
317 ctdb->statistics_current.counter--; \
320 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
322 ctdb_db->statistics.counter++; \
325 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
327 if (ctdb_db->statistics.counter > 0) \
328 ctdb_db->statistics.counter--; \
331 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
333 if (value > ctdb->statistics.counter.max) \
334 ctdb->statistics.counter.max = value; \
335 if (value > ctdb->statistics_current.counter.max) \
336 ctdb->statistics_current.counter.max = value; \
338 if (ctdb->statistics.counter.num == 0 || \
339 value < ctdb->statistics.counter.min) \
340 ctdb->statistics.counter.min = value; \
341 if (ctdb->statistics_current.counter.num == 0 || \
342 value < ctdb->statistics_current.counter.min) \
343 ctdb->statistics_current.counter.min = value; \
345 ctdb->statistics.counter.total += value; \
346 ctdb->statistics_current.counter.total += value; \
348 ctdb->statistics.counter.num++; \
349 ctdb->statistics_current.counter.num++; \
351 if (ctdb->tunable.reclock_latency_ms != 0) { \
352 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
354 ("High RECLOCK latency %fs for operation %s\n", \
360 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
362 if (value > ctdb_db->statistics.counter.max) \
363 ctdb_db->statistics.counter.max = value; \
364 if (ctdb_db->statistics.counter.num == 0 || \
365 value < ctdb_db->statistics.counter.min) \
366 ctdb_db->statistics.counter.min = value; \
368 ctdb_db->statistics.counter.total += value; \
369 ctdb_db->statistics.counter.num++; \
371 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
372 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
374 ("High latency %.6fs for operation %s on database %s\n",\
375 value, operation, ctdb_db->db_name)); \
380 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
382 double l = timeval_elapsed(&t); \
384 if (l > ctdb->statistics.counter.max) \
385 ctdb->statistics.counter.max = l; \
386 if (l > ctdb->statistics_current.counter.max) \
387 ctdb->statistics_current.counter.max = l; \
389 if (ctdb->statistics.counter.num == 0 || \
390 l < ctdb->statistics.counter.min) \
391 ctdb->statistics.counter.min = l; \
392 if (ctdb->statistics_current.counter.num == 0 || \
393 l < ctdb->statistics_current.counter.min) \
394 ctdb->statistics_current.counter.min = l; \
396 ctdb->statistics.counter.total += l; \
397 ctdb->statistics_current.counter.total += l; \
399 ctdb->statistics.counter.num++; \
400 ctdb->statistics_current.counter.num++; \
402 if (ctdb->tunable.log_latency_ms != 0) { \
403 if (l*1000 > ctdb->tunable.log_latency_ms) { \
404 DEBUG(DEBUG_WARNING, \
405 ("High latency %.6fs for operation %s on database %s\n",\
406 l, operation, db->db_name)); \
413 /* a structure that contains the elements required for the write record
416 struct ctdb_write_record {
420 unsigned char blob[1];
423 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
426 CTDB_RUNSTATE_UNKNOWN,
429 CTDB_RUNSTATE_FIRST_RECOVERY,
430 CTDB_RUNSTATE_STARTUP,
431 CTDB_RUNSTATE_RUNNING,
432 CTDB_RUNSTATE_SHUTDOWN,
435 const char *runstate_to_string(enum ctdb_runstate runstate);
436 enum ctdb_runstate runstate_from_string(const char *label);
437 void ctdb_set_runstate(struct ctdb_context *ctdb, enum ctdb_runstate runstate);
439 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
441 #define CTDB_MONITORING_ACTIVE 0
442 #define CTDB_MONITORING_DISABLED 1
444 #define NUM_DB_PRIORITIES 3
445 /* main state of the ctdb daemon */
446 struct ctdb_context {
447 struct tevent_context *ev;
448 struct timeval ctdbd_start_time;
449 struct timeval last_recovery_started;
450 struct timeval last_recovery_finished;
451 uint32_t recovery_mode;
452 TALLOC_CTX *tickle_update_context;
453 TALLOC_CTX *keepalive_ctx;
454 TALLOC_CTX *check_public_ifaces_ctx;
455 struct ctdb_tunable tunable;
456 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
457 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
458 bool freeze_transaction_started;
459 uint32_t freeze_transaction_id;
460 ctdb_sock_addr *address;
462 const char *db_directory;
463 const char *db_directory_persistent;
464 const char *db_directory_state;
465 struct tdb_wrap *db_persistent_health;
466 uint32_t db_persistent_startup_generation;
467 uint64_t db_persistent_check_errors;
468 uint64_t max_persistent_check_errors;
469 const char *transport;
470 char *recovery_lock_file;
471 int recovery_lock_fd;
472 uint32_t pnn; /* our own pnn */
474 uint32_t num_connected;
476 uint32_t capabilities;
477 struct idr_context *idr;
479 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
480 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
481 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
482 struct ctdb_iface *ifaces; /* list of local interfaces */
484 const struct ctdb_methods *methods; /* transport methods */
485 const struct ctdb_upcalls *upcalls; /* transport upcalls */
486 void *private_data; /* private to transport */
487 struct ctdb_db_context *db_list;
488 struct ctdb_message_list_header *message_list_header;
489 struct tdb_context *message_list_indexdb;
490 struct ctdb_daemon_data daemon;
491 struct ctdb_statistics statistics;
492 struct ctdb_statistics statistics_current;
493 #define MAX_STAT_HISTORY 100
494 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
495 struct ctdb_vnn_map *vnn_map;
496 uint32_t num_clients;
497 uint32_t recovery_master;
498 struct ctdb_call_state *pending_calls;
499 struct ctdb_client_ip *client_ip_list;
500 bool do_checkpublicip;
501 struct trbt_tree *server_ids;
503 const char *event_script_dir;
504 const char *notification_script;
505 const char *default_public_interface;
508 enum ctdb_runstate runstate;
509 struct ctdb_monitor_state *monitor;
510 int start_as_disabled;
511 int start_as_stopped;
513 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
514 uint32_t *recd_ping_count;
515 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
516 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
518 TALLOC_CTX *event_script_ctx;
521 struct ctdb_event_script_state *current_monitor;
522 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
524 TALLOC_CTX *banning_ctx;
526 struct ctdb_vacuum_child_context *vacuumers;
528 /* mapping from pid to ctdb_client * */
529 struct ctdb_client_pid_list *client_pids;
531 /* used in the recovery daemon to remember the ip allocation */
532 struct trbt_tree *ip_tree;
534 /* Used to defer db attach requests while in recovery mode */
535 struct ctdb_deferred_attach_context *deferred_attach;
537 /* if we are a child process, do we have a domain socket to send controls on */
538 bool can_send_controls;
540 /* list of event script callback functions that are active */
541 struct event_script_callback *script_callbacks;
543 struct ctdb_reloadips_handle *reload_ips;
545 const char *nodes_file;
546 const char *public_addresses_file;
547 struct trbt_tree *child_processes;
549 /* Used for locking record/db/alldb */
550 struct lock_context *lock_current;
551 struct lock_context *lock_pending;
554 struct ctdb_db_context {
555 struct ctdb_db_context *next, *prev;
556 struct ctdb_context *ctdb;
560 bool readonly; /* Do we support read-only delegations ? */
561 bool sticky; /* Do we support sticky records ? */
564 struct tdb_wrap *ltdb;
565 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
566 struct ctdb_registered_call *calls; /* list of registered calls */
568 struct timed_event *seqnum_update;
569 struct ctdb_traverse_local_handle *traverse;
570 struct ctdb_vacuum_handle *vacuum_handle;
571 char *unhealthy_reason;
572 int pending_requests;
573 struct revokechild_handle *revokechild_active;
574 struct ctdb_persistent_state *persistent_state;
575 struct trbt_tree *delete_queue;
576 struct trbt_tree *sticky_records;
577 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
579 struct ctdb_ltdb_header *header,
582 /* used to track which records we are currently fetching
583 so we can avoid sending duplicate fetch requests
585 struct trbt_tree *deferred_fetch;
586 struct trbt_tree *defer_dmaster;
588 struct ctdb_db_statistics statistics;
590 struct lock_context *lock_current;
591 struct lock_context *lock_pending;
592 int lock_num_current;
596 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
597 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
598 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
599 return -1; }} while (0)
601 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
602 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
603 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
606 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
607 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
608 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
609 return NULL; }} while (0)
611 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
612 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
613 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
617 structure passed in set_call control
619 struct ctdb_control_set_call {
626 struct for kill_tcp control
628 struct ctdb_control_killtcp {
629 ctdb_sock_addr src_addr;
630 ctdb_sock_addr dst_addr;
634 struct holding a ctdb_sock_addr and an interface name,
635 used to add/remove public addresses
637 struct ctdb_control_ip_iface {
645 struct holding a ctdb_sock_addr and an interface name,
646 used for send_gratious_arp
648 struct ctdb_control_gratious_arp {
656 persistent store control - update this record on all other nodes
658 struct ctdb_control_persistent_store {
665 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
667 struct ctdb_node_flag_change {
674 struct for admin setting a ban
676 struct ctdb_ban_info {
681 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
683 #define CTDB_LMASTER_ANY 0xffffffff
686 state of a in-progress ctdb call
688 struct ctdb_call_state {
689 struct ctdb_call_state *next, *prev;
690 enum call_state state;
692 struct ctdb_req_call *c;
693 struct ctdb_db_context *ctdb_db;
695 struct ctdb_call *call;
698 void (*fn)(struct ctdb_call_state *);
704 /* used for fetch_lock */
705 struct ctdb_fetch_handle {
706 struct ctdb_db_context *ctdb_db;
709 struct ctdb_ltdb_header header;
712 /* internal prototypes */
713 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
714 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
715 void ctdb_die(struct ctdb_context *ctdb, const char *msg);
716 bool ctdb_set_helper(const char *type, char *helper, size_t size,
717 const char *envvar, const char *dir, const char *file);
718 void ctdb_external_trace(void);
719 bool ctdb_same_address(ctdb_sock_addr *a1, ctdb_sock_addr *a2);
720 int ctdb_parse_address(TALLOC_CTX *mem_ctx, const char *str,
721 ctdb_sock_addr *address);
722 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
723 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
724 uint32_t ctdb_hash(const TDB_DATA *key);
725 uint32_t *ctdb_key_to_idkey(TALLOC_CTX *mem_ctx, TDB_DATA key);
727 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
728 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
729 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
730 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
731 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
732 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
734 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
735 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
736 TDB_DATA key, struct ctdb_ltdb_header *header,
737 TALLOC_CTX *mem_ctx, TDB_DATA *data);
738 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
739 struct ctdb_ltdb_header *header, TDB_DATA data);
740 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
741 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
742 TDB_DATA key, struct ctdb_ltdb_header *header,
743 TALLOC_CTX *mem_ctx, TDB_DATA *data);
744 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
745 struct ctdb_req_control *c,
747 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
748 struct ctdb_req_control *c,
750 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
751 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
752 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
753 TDB_DATA key, struct ctdb_req_header *hdr,
754 void (*recv_pkt)(void *, struct ctdb_req_header *),
755 void *recv_context, bool ignore_generation);
756 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
757 TDB_DATA key, struct ctdb_ltdb_header *header,
758 struct ctdb_req_header *hdr, TDB_DATA *data,
759 void (*recv_pkt)(void *, struct ctdb_req_header *),
760 void *recv_context, bool ignore_generation);
761 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
763 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
764 struct ctdb_call *call,
765 struct ctdb_ltdb_header *header,
769 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork);
771 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
772 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
775 queue a packet for sending
777 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
780 setup the fd used by the queue
782 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
785 setup a packet queue on a socket
787 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
788 TALLOC_CTX *mem_ctx, int fd, int alignment,
790 ctdb_queue_cb_fn_t callback,
791 void *private_data, const char *fmt, ...)
792 PRINTF_ATTRIBUTE(7,8);
795 allocate a packet for use in client<->daemon communication
797 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
799 enum ctdb_operation operation,
800 size_t length, size_t slength,
802 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
803 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
805 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
807 enum ctdb_operation operation,
808 size_t length, size_t slength,
810 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
811 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
813 int ctdb_queue_length(struct ctdb_queue *queue);
816 lock a record in the ltdb, given a key
818 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
821 unlock a record in the ltdb, given a key
823 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
827 make a ctdb call to the local daemon - async send. Called from client context.
829 This constructs a ctdb_call request and queues it for processing.
830 This call never blocks.
832 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
833 struct ctdb_call *call);
836 make a recv call to the local ctdb daemon - called from client context
838 This is called when the program wants to wait for a ctdb_call to complete and get the
839 results. This call will block unless the call has already completed.
841 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
843 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
844 uint64_t srvid, TDB_DATA data);
849 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
850 uint64_t srvid, TDB_DATA data);
853 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
854 struct ctdb_call *call);
856 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
858 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
859 struct ctdb_call *call,
860 struct ctdb_ltdb_header *header);
862 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
863 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
864 TDB_DATA *data, bool updatetdb);
866 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
868 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
870 int ctdb_socket_connect(struct ctdb_context *ctdb);
871 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
873 #define CTDB_BAD_REQID ((uint32_t)-1)
874 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
875 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
876 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
878 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
879 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
881 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
882 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
884 ctdb_control_callback_fn_t callback,
887 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
888 TDB_DATA *outdata, uint64_t tdb_flags,
889 bool persistent, uint32_t client_id,
890 struct ctdb_req_control *c,
892 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
895 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
896 ctdb_fn_t fn, int id);
898 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
899 uint32_t opcode, uint32_t flags, TDB_DATA data,
900 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
901 struct timeval *timeout, char **errormsg);
902 int ctdb_control_recv(struct ctdb_context *ctdb,
903 struct ctdb_client_control_state *state,
905 TDB_DATA *outdata, int32_t *status, char **errormsg);
907 struct ctdb_client_control_state *
908 ctdb_control_send(struct ctdb_context *ctdb,
909 uint32_t destnode, uint64_t srvid,
910 uint32_t opcode, uint32_t flags, TDB_DATA data,
912 struct timeval *timeout,
918 #define CHECK_CONTROL_DATA_SIZE(size) do { \
919 if (indata.dsize != size) { \
920 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
921 opcode, (unsigned)indata.dsize, (unsigned)size)); \
926 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
927 if (indata.dsize < size) { \
928 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
929 opcode, (unsigned)indata.dsize, (unsigned)size)); \
934 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
935 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
936 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
937 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
938 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
939 int ctdb_control_getnodesfile(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
940 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
943 /* structure used for pulldb control */
944 struct ctdb_control_pulldb {
949 /* structure used for sending lists of records */
950 struct ctdb_marshall_buffer {
957 structure for setting a tunable
959 struct ctdb_control_set_tunable {
966 structure for getting a tunable
968 struct ctdb_control_get_tunable {
974 structure for listing tunables
976 struct ctdb_control_list_tunable {
978 /* returns a : separated list of tunable names */
983 struct ctdb_node_and_flagsv4 {
986 struct sockaddr_in sin;
989 struct ctdb_node_mapv4 {
991 struct ctdb_node_and_flagsv4 nodes[1];
994 struct ctdb_control_wipe_database {
996 uint32_t transaction_id;
1000 state of a in-progress ctdb call in client
1002 struct ctdb_client_call_state {
1003 enum call_state state;
1005 struct ctdb_db_context *ctdb_db;
1006 struct ctdb_call *call;
1008 void (*fn)(struct ctdb_client_call_state *);
1014 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1018 uint32_t client_id);
1019 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1020 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1021 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1022 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1023 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1024 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1025 TDB_DATA *outdata, uint32_t srcnode);
1027 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1028 bool ctdb_check_message_handler(struct ctdb_context *ctdb, uint64_t srvid);
1030 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1031 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1032 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1033 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
1036 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1037 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1039 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1040 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1042 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1044 struct ctdb_ltdb_header *header,
1045 TDB_DATA *key, TDB_DATA *data);
1047 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1048 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1050 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1051 struct ctdb_req_control *c,
1052 TDB_DATA indata, bool *async_reply,
1053 const char **errormsg);
1054 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1055 TDB_DATA *outdata, int32_t status, const char *errormsg);
1057 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1058 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority,
1059 bool check_recmode);
1061 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1062 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1064 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1066 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1067 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1068 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1069 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
1070 int ctdb_tcp_init(struct ctdb_context *ctdb);
1071 int ctdb_ibw_init(struct ctdb_context *ctdb);
1072 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1073 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1074 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1075 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1076 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1079 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1080 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1081 void ctdb_node_dead(struct ctdb_node *node);
1082 void ctdb_node_connected(struct ctdb_node *node);
1083 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1084 bool set_scheduler(void);
1085 void reset_scheduler(void);
1087 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
1088 void ctdb_track_child(struct ctdb_context *ctdb, pid_t pid);
1089 pid_t ctdb_fork(struct ctdb_context *ctdb);
1090 void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt, ...);
1091 bool ctdb_is_child_process(void);
1092 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
1094 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1095 struct ctdb_req_control *c,
1098 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1099 struct ctdb_req_control *c,
1102 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1103 struct ctdb_req_control *c,
1106 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1107 struct ctdb_req_control *c,
1110 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
1111 struct ctdb_req_control *c,
1113 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1114 struct ctdb_req_control *c,
1116 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1117 struct ctdb_req_control *c,
1120 struct ctdb_public_ipv4 {
1122 struct sockaddr_in sin;
1125 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1126 uint32_t destnode, struct ctdb_public_ip *ip);
1127 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1128 uint32_t destnode, struct ctdb_public_ip *ip);
1130 struct ctdb_all_public_ipsv4 {
1132 struct ctdb_public_ipv4 ips[1];
1135 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1136 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1137 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1138 struct timeval timeout,
1140 TALLOC_CTX *mem_ctx,
1141 struct ctdb_all_public_ips **ips);
1142 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1143 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1144 struct timeval timeout, uint32_t destnode,
1145 TALLOC_CTX *mem_ctx,
1147 struct ctdb_all_public_ips **ips);
1148 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1149 struct timeval timeout, uint32_t destnode,
1150 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1152 struct ctdb_control_iface_info {
1153 char name[CTDB_IFACE_SIZE+2];
1154 uint16_t link_state;
1155 uint32_t references;
1158 struct ctdb_control_public_ip_info {
1159 struct ctdb_public_ip ip;
1160 uint32_t active_idx;
1162 struct ctdb_control_iface_info ifaces[1];
1165 struct ctdb_control_get_ifaces {
1167 struct ctdb_control_iface_info ifaces[1];
1170 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1171 struct ctdb_req_control *c,
1174 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1175 struct ctdb_req_control *c,
1177 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1178 struct ctdb_req_control *c,
1180 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1181 struct timeval timeout, uint32_t destnode,
1182 TALLOC_CTX *mem_ctx,
1183 const ctdb_sock_addr *addr,
1184 struct ctdb_control_public_ip_info **info);
1185 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1186 struct timeval timeout, uint32_t destnode,
1187 TALLOC_CTX *mem_ctx,
1188 struct ctdb_control_get_ifaces **ifaces);
1189 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1190 struct timeval timeout, uint32_t destnode,
1191 TALLOC_CTX *mem_ctx,
1192 const struct ctdb_control_iface_info *info);
1194 /* from takeover/system.c */
1195 uint32_t uint16_checksum(uint16_t *data, size_t n);
1196 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1197 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1198 char *ctdb_sys_find_ifname(ctdb_sock_addr *addr);
1199 bool ctdb_sys_check_iface_exists(const char *iface);
1200 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1201 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1202 const ctdb_sock_addr *src,
1203 uint32_t seq, uint32_t ack, int rst);
1205 /* Details of a byte range lock */
1206 struct ctdb_lock_info {
1213 char *ctdb_get_process_name(pid_t pid);
1214 int ctdb_set_process_name(const char *name);
1215 bool ctdb_get_lock_info(pid_t req_pid, struct ctdb_lock_info *lock_info);
1216 bool ctdb_get_blocker_pid(struct ctdb_lock_info *reqlock, pid_t *blocker_pid);
1218 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1220 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
1221 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1224 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1225 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1226 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap,
1227 uint32_t *force_rebalance_nodes,
1228 client_async_callback fail_callback, void *callback_data);
1230 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1232 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1233 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1234 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1235 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1236 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1237 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1238 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1240 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1241 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1242 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1243 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1244 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1245 TALLOC_CTX *mem_ctx,
1246 void (*callback)(struct ctdb_context *, int, void *),
1248 enum ctdb_eventscript_call call,
1249 const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1250 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1252 void set_nonblocking(int fd);
1253 void set_close_on_exec(int fd);
1255 bool ctdb_recovery_have_lock(struct ctdb_context *ctdb);
1256 bool ctdb_recovery_lock(struct ctdb_context *ctdb);
1257 void ctdb_recovery_unlock(struct ctdb_context *ctdb);
1259 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1261 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1263 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1264 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1265 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1266 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1267 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1268 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
1269 struct ctdb_req_control *c,
1270 TDB_DATA recdata, bool *async_reply);
1272 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1274 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1276 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1277 struct timeval timeout,
1279 struct ctdb_tunable *tunables);
1281 void ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1283 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1284 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1285 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1286 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1289 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1290 int ctdb_sys_close_capture_socket(void *private_data);
1291 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);
1293 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1294 struct timeval timeout,
1296 struct ctdb_control_killtcp *killtcp);
1298 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1299 struct timeval timeout,
1301 struct ctdb_control_ip_iface *pub);
1303 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1304 struct timeval timeout,
1306 struct ctdb_control_ip_iface *pub);
1308 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1309 struct timeval timeout,
1311 ctdb_sock_addr *addr,
1312 const char *ifname);
1314 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1315 struct timeval timeout,
1317 TALLOC_CTX *mem_ctx,
1318 ctdb_sock_addr *addr,
1319 struct ctdb_control_tcp_tickle_list **list);
1322 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1325 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1327 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1329 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1331 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1334 int ctdb_attach_databases(struct ctdb_context *ctdb);
1336 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1337 struct ctdb_req_control *c,
1338 TDB_DATA recdata, bool *async_reply);
1339 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1340 struct ctdb_req_control *c, TDB_DATA recdata,
1342 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1343 struct ctdb_req_control *c,
1344 TDB_DATA recdata, bool *async_reply);
1346 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1347 struct ctdb_req_control *c,
1348 TDB_DATA recdata, bool *async_reply);
1350 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1352 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1353 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1354 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1355 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1356 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1357 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1362 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1363 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1365 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1366 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
1367 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1368 void lockdown_memory(bool valgrinding);
1370 struct client_async_data {
1371 enum ctdb_controls opcode;
1372 bool dont_log_errors;
1374 uint32_t fail_count;
1375 client_async_callback callback;
1376 client_async_callback fail_callback;
1377 void *callback_data;
1379 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1380 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1381 int ctdb_client_async_control(struct ctdb_context *ctdb,
1382 enum ctdb_controls opcode,
1385 struct timeval timeout,
1386 bool dont_log_errors,
1388 client_async_callback client_callback,
1389 client_async_callback fail_callback,
1390 void *callback_data);
1392 struct ctdb_node_map *ctdb_read_nodes_file(TALLOC_CTX *mem_ctx,
1394 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1396 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1398 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1399 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1401 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1402 struct ctdb_req_control *c);
1403 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1404 struct ctdb_req_control *c);
1405 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1406 struct ctdb_req_control *c,
1409 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1410 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1411 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1413 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1414 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1416 extern int script_log_level;
1417 extern bool fast_start;
1418 extern const char *ctdbd_pidfile;
1420 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1424 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1425 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1427 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
1428 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1430 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1431 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1433 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1434 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1436 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1437 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1438 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1439 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata,
1440 uint32_t client_id);
1441 void ctdb_ban_self(struct ctdb_context *ctdb);
1443 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1445 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1447 struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
1448 struct ctdb_context *ctdb,
1449 const char *log_prefix,
1452 const char **helper_argv,
1453 void (*logfn)(const char *, uint16_t, void *),
1454 void *logfn_private, pid_t *pid);
1457 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1458 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1460 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1464 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1465 struct ctdb_db_context *ctdb_db);
1466 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1467 struct ctdb_db_context *ctdb_db,
1468 const char *reason,/* NULL means healthy */
1469 int num_healthy_nodes);
1470 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1472 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1474 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1475 struct ctdb_all_public_ips *ips,
1477 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1478 struct ctdb_public_ip *ip);
1480 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1482 int ctdb_statistics_init(struct ctdb_context *ctdb);
1484 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1485 struct ctdb_req_control *c,
1488 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1490 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1493 * structure to pass to a schedule_for_deletion_control
1495 struct ctdb_control_schedule_for_deletion {
1497 struct ctdb_ltdb_header hdr;
1499 uint8_t key[1]; /* key[] */
1502 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1506 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1507 const struct ctdb_ltdb_header *hdr,
1510 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1511 const struct ctdb_ltdb_header *hdr,
1512 const TDB_DATA key);
1514 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1516 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1518 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1520 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1522 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);
1524 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1526 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);
1528 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1530 int ctdb_null_func(struct ctdb_call_info *call);
1532 int ctdb_fetch_func(struct ctdb_call_info *call);
1534 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1536 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1540 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1543 description for a message to reload all ips via recovery master/daemon
1545 struct reloadips_all_reply {
1550 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1552 int ctdb_start_monitoring_interfaces(struct ctdb_context *ctdb);
1554 /* from server/ctdb_lock.c */
1555 struct lock_request;
1557 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
1558 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
1560 struct lock_request *ctdb_lock_record(TALLOC_CTX *mem_ctx,
1561 struct ctdb_db_context *ctdb_db,
1564 void (*callback)(void *, bool),
1565 void *private_data);
1567 struct lock_request *ctdb_lock_db(TALLOC_CTX *mem_ctx,
1568 struct ctdb_db_context *ctdb_db,
1570 void (*callback)(void *, bool),
1571 void *private_data);
1573 struct lock_request *ctdb_lock_alldb_prio(TALLOC_CTX *mem_ctx,
1574 struct ctdb_context *ctdb,
1577 void (*callback)(void *, bool),
1578 void *private_data);
1580 struct lock_request *ctdb_lock_alldb(TALLOC_CTX *mem_ctx,
1581 struct ctdb_context *ctdb,
1583 void (*callback)(void *, bool),
1584 void *private_data);
1586 int mkdir_p(const char *dir, int mode);
1587 void mkdir_p_or_die(const char *dir, int mode);
1589 ssize_t sys_read(int fd, void *buf, size_t count);
1590 ssize_t sys_write(int fd, const void *buf, size_t count);