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 this address structure might need to be generalised later for some
146 struct ctdb_address {
152 check that a pnn is valid
154 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
157 /* called from the queue code when a packet comes in. Called with data==NULL
159 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
162 /* used for callbacks in ctdb_control requests */
163 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
164 int32_t status, TDB_DATA data,
165 const char *errormsg,
168 structure describing a connected client in the daemon
171 struct ctdb_context *ctdb;
173 struct ctdb_queue *queue;
176 struct ctdb_tcp_list *tcp_list;
178 uint32_t num_persistent_updates;
179 struct ctdb_client_notify_list *notify;
184 /* state associated with a public ip address */
186 struct ctdb_vnn *prev, *next;
188 struct ctdb_iface *iface;
190 ctdb_sock_addr public_address;
191 uint8_t public_netmask_bits;
193 /* the node number that is serving this public address, if any.
194 If no node serves this ip it is set to -1 */
197 /* List of clients to tickle for this public address */
198 struct ctdb_tcp_array *tcp_array;
200 /* whether we need to update the other nodes with changes to our list
201 of connected clients */
202 bool tcp_update_needed;
204 /* a context to hang sending gratious arp events off */
205 TALLOC_CTX *takeover_ctx;
207 struct ctdb_kill_tcp *killtcp;
209 /* Set to true any time an update to this VNN is in flight.
210 This helps to avoid races. */
211 bool update_in_flight;
213 /* If CTDB_CONTROL_DEL_PUBLIC_IP is received for this IP
214 * address then this flag is set. It will be deleted in the
215 * release IP callback. */
220 state associated with one node
223 struct ctdb_context *ctdb;
224 struct ctdb_address address;
225 const char *name; /* for debug messages */
226 void *private_data; /* private to transport */
230 /* used by the dead node monitoring */
235 /* used to track node capabilities, is only valid/tracked inside the
238 uint32_t capabilities;
240 /* a list of controls pending to this node, so we can time them out quickly
241 if the node becomes disconnected */
242 struct daemon_control_state *pending_controls;
244 /* used by the recovery daemon when distributing ip addresses
245 across the nodes. it needs to know which public ip's can be handled
248 struct ctdb_all_public_ips *known_public_ips;
249 struct ctdb_all_public_ips *available_public_ips;
250 /* used by the recovery dameon to track when a node should be banned */
251 struct ctdb_banning_state *ban_state;
255 transport specific methods
257 struct ctdb_methods {
258 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
259 int (*start)(struct ctdb_context *); /* start the transport */
260 int (*add_node)(struct ctdb_node *); /* setup a new node */
261 int (*connect_node)(struct ctdb_node *); /* connect to node */
262 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
263 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
264 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
265 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
269 transport calls up to the ctdb layer
271 struct ctdb_upcalls {
272 /* recv_pkt is called when a packet comes in */
273 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
275 /* node_dead is called when an attempt to send to a node fails */
276 void (*node_dead)(struct ctdb_node *);
278 /* node_connected is called when a connection to a node is established */
279 void (*node_connected)(struct ctdb_node *);
282 /* list of message handlers - needs to be changed to a more efficient data
283 structure so we can find a message handler given a srvid quickly */
284 struct ctdb_message_list_header {
285 struct ctdb_message_list_header *next, *prev;
286 struct ctdb_context *ctdb;
288 struct ctdb_message_list *m;
290 struct ctdb_message_list {
291 struct ctdb_message_list *next, *prev;
292 struct ctdb_message_list_header *h;
293 ctdb_msg_fn_t message_handler;
294 void *message_private;
297 /* additional data required for the daemon mode */
298 struct ctdb_daemon_data {
301 struct ctdb_queue *queue;
305 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
307 if (value > ctdb->statistics.counter) { \
308 ctdb->statistics.counter = c->hopcount; \
310 if (value > ctdb->statistics_current.counter) { \
311 ctdb->statistics_current.counter = c->hopcount; \
315 #define CTDB_INCREMENT_STAT(ctdb, counter) \
317 ctdb->statistics.counter++; \
318 ctdb->statistics_current.counter++; \
321 #define CTDB_DECREMENT_STAT(ctdb, counter) \
323 if (ctdb->statistics.counter > 0) \
324 ctdb->statistics.counter--; \
325 if (ctdb->statistics_current.counter > 0) \
326 ctdb->statistics_current.counter--; \
329 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
331 ctdb_db->statistics.counter++; \
334 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
336 if (ctdb_db->statistics.counter > 0) \
337 ctdb_db->statistics.counter--; \
340 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
342 if (value > ctdb->statistics.counter.max) \
343 ctdb->statistics.counter.max = value; \
344 if (value > ctdb->statistics_current.counter.max) \
345 ctdb->statistics_current.counter.max = value; \
347 if (ctdb->statistics.counter.num == 0 || \
348 value < ctdb->statistics.counter.min) \
349 ctdb->statistics.counter.min = value; \
350 if (ctdb->statistics_current.counter.num == 0 || \
351 value < ctdb->statistics_current.counter.min) \
352 ctdb->statistics_current.counter.min = value; \
354 ctdb->statistics.counter.total += value; \
355 ctdb->statistics_current.counter.total += value; \
357 ctdb->statistics.counter.num++; \
358 ctdb->statistics_current.counter.num++; \
360 if (ctdb->tunable.reclock_latency_ms != 0) { \
361 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
363 ("High RECLOCK latency %fs for operation %s\n", \
369 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
371 if (value > ctdb_db->statistics.counter.max) \
372 ctdb_db->statistics.counter.max = value; \
373 if (ctdb_db->statistics.counter.num == 0 || \
374 value < ctdb_db->statistics.counter.min) \
375 ctdb_db->statistics.counter.min = value; \
377 ctdb_db->statistics.counter.total += value; \
378 ctdb_db->statistics.counter.num++; \
380 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
381 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
383 ("High latency %.6fs for operation %s on database %s\n",\
384 value, operation, ctdb_db->db_name)); \
389 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
391 double l = timeval_elapsed(&t); \
393 if (l > ctdb->statistics.counter.max) \
394 ctdb->statistics.counter.max = l; \
395 if (l > ctdb->statistics_current.counter.max) \
396 ctdb->statistics_current.counter.max = l; \
398 if (ctdb->statistics.counter.num == 0 || \
399 l < ctdb->statistics.counter.min) \
400 ctdb->statistics.counter.min = l; \
401 if (ctdb->statistics_current.counter.num == 0 || \
402 l < ctdb->statistics_current.counter.min) \
403 ctdb->statistics_current.counter.min = l; \
405 ctdb->statistics.counter.total += l; \
406 ctdb->statistics_current.counter.total += l; \
408 ctdb->statistics.counter.num++; \
409 ctdb->statistics_current.counter.num++; \
411 if (ctdb->tunable.log_latency_ms != 0) { \
412 if (l*1000 > ctdb->tunable.log_latency_ms) { \
413 DEBUG(DEBUG_WARNING, \
414 ("High latency %.6fs for operation %s on database %s\n",\
415 l, operation, db->db_name)); \
422 /* a structure that contains the elements required for the write record
425 struct ctdb_write_record {
429 unsigned char blob[1];
432 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
435 CTDB_RUNSTATE_UNKNOWN,
438 CTDB_RUNSTATE_FIRST_RECOVERY,
439 CTDB_RUNSTATE_STARTUP,
440 CTDB_RUNSTATE_RUNNING,
441 CTDB_RUNSTATE_SHUTDOWN,
444 const char *runstate_to_string(enum ctdb_runstate runstate);
445 enum ctdb_runstate runstate_from_string(const char *label);
446 void ctdb_set_runstate(struct ctdb_context *ctdb, enum ctdb_runstate runstate);
448 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
450 #define CTDB_MONITORING_ACTIVE 0
451 #define CTDB_MONITORING_DISABLED 1
453 #define NUM_DB_PRIORITIES 3
454 /* main state of the ctdb daemon */
455 struct ctdb_context {
456 struct tevent_context *ev;
457 struct timeval ctdbd_start_time;
458 struct timeval last_recovery_started;
459 struct timeval last_recovery_finished;
460 uint32_t recovery_mode;
461 TALLOC_CTX *tickle_update_context;
462 TALLOC_CTX *keepalive_ctx;
463 TALLOC_CTX *check_public_ifaces_ctx;
464 struct ctdb_tunable tunable;
465 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
466 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
467 bool freeze_transaction_started;
468 uint32_t freeze_transaction_id;
469 struct ctdb_address address;
471 const char *db_directory;
472 const char *db_directory_persistent;
473 const char *db_directory_state;
474 struct tdb_wrap *db_persistent_health;
475 uint32_t db_persistent_startup_generation;
476 uint64_t db_persistent_check_errors;
477 uint64_t max_persistent_check_errors;
478 const char *transport;
479 char *recovery_lock_file;
480 int recovery_lock_fd;
481 uint32_t pnn; /* our own pnn */
483 uint32_t num_connected;
485 uint32_t capabilities;
486 struct idr_context *idr;
488 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
489 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
490 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
491 struct ctdb_iface *ifaces; /* list of local interfaces */
493 const struct ctdb_methods *methods; /* transport methods */
494 const struct ctdb_upcalls *upcalls; /* transport upcalls */
495 void *private_data; /* private to transport */
496 struct ctdb_db_context *db_list;
497 struct ctdb_message_list_header *message_list_header;
498 struct tdb_context *message_list_indexdb;
499 struct ctdb_daemon_data daemon;
500 struct ctdb_statistics statistics;
501 struct ctdb_statistics statistics_current;
502 #define MAX_STAT_HISTORY 100
503 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
504 struct ctdb_vnn_map *vnn_map;
505 uint32_t num_clients;
506 uint32_t recovery_master;
507 struct ctdb_call_state *pending_calls;
508 struct ctdb_client_ip *client_ip_list;
509 bool do_checkpublicip;
510 struct trbt_tree *server_ids;
512 const char *event_script_dir;
513 const char *notification_script;
514 const char *default_public_interface;
518 enum ctdb_runstate runstate;
519 struct ctdb_monitor_state *monitor;
520 struct ctdb_log_state *log;
521 int start_as_disabled;
522 int start_as_stopped;
524 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
525 uint32_t *recd_ping_count;
526 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
527 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
529 TALLOC_CTX *event_script_ctx;
532 struct ctdb_event_script_state *current_monitor;
533 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
535 TALLOC_CTX *banning_ctx;
537 struct ctdb_vacuum_child_context *vacuumers;
539 /* mapping from pid to ctdb_client * */
540 struct ctdb_client_pid_list *client_pids;
542 /* used in the recovery daemon to remember the ip allocation */
543 struct trbt_tree *ip_tree;
545 /* Used to defer db attach requests while in recovery mode */
546 struct ctdb_deferred_attach_context *deferred_attach;
548 /* if we are a child process, do we have a domain socket to send controls on */
549 bool can_send_controls;
551 /* list of event script callback functions that are active */
552 struct event_script_callback *script_callbacks;
554 struct ctdb_reloadips_handle *reload_ips;
556 const char *nodes_file;
557 const char *public_addresses_file;
558 struct trbt_tree *child_processes;
560 /* Used for locking record/db/alldb */
561 int lock_num_pending;
562 struct lock_context *lock_current;
563 struct lock_context *lock_pending;
566 struct ctdb_db_context {
567 struct ctdb_db_context *next, *prev;
568 struct ctdb_context *ctdb;
572 bool readonly; /* Do we support read-only delegations ? */
573 bool sticky; /* Do we support sticky records ? */
576 struct tdb_wrap *ltdb;
577 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
578 struct ctdb_registered_call *calls; /* list of registered calls */
580 struct timed_event *seqnum_update;
581 struct ctdb_traverse_local_handle *traverse;
582 struct ctdb_vacuum_handle *vacuum_handle;
583 char *unhealthy_reason;
584 int pending_requests;
585 struct revokechild_handle *revokechild_active;
586 struct ctdb_persistent_state *persistent_state;
587 struct trbt_tree *delete_queue;
588 struct trbt_tree *sticky_records;
589 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
591 struct ctdb_ltdb_header *header,
594 /* used to track which records we are currently fetching
595 so we can avoid sending duplicate fetch requests
597 struct trbt_tree *deferred_fetch;
599 struct ctdb_db_statistics statistics;
601 int lock_num_current;
605 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
606 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
607 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
608 return -1; }} while (0)
610 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
611 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
612 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
615 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
616 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
617 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
618 return NULL; }} while (0)
620 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
621 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
622 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
626 structure passed in set_call control
628 struct ctdb_control_set_call {
635 struct for kill_tcp control
637 struct ctdb_control_killtcp {
638 ctdb_sock_addr src_addr;
639 ctdb_sock_addr dst_addr;
643 struct holding a ctdb_sock_addr and an interface name,
644 used to add/remove public addresses
646 struct ctdb_control_ip_iface {
654 struct holding a ctdb_sock_addr and an interface name,
655 used for send_gratious_arp
657 struct ctdb_control_gratious_arp {
665 persistent store control - update this record on all other nodes
667 struct ctdb_control_persistent_store {
674 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
676 struct ctdb_node_flag_change {
683 struct for admin setting a ban
685 struct ctdb_ban_info {
690 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
692 #define CTDB_LMASTER_ANY 0xffffffff
695 state of a in-progress ctdb call
697 struct ctdb_call_state {
698 struct ctdb_call_state *next, *prev;
699 enum call_state state;
701 struct ctdb_req_call *c;
702 struct ctdb_db_context *ctdb_db;
704 struct ctdb_call *call;
707 void (*fn)(struct ctdb_call_state *);
713 /* used for fetch_lock */
714 struct ctdb_fetch_handle {
715 struct ctdb_db_context *ctdb_db;
718 struct ctdb_ltdb_header header;
721 /* internal prototypes */
722 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
723 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
724 void ctdb_die(struct ctdb_context *ctdb, const char *msg);
725 void ctdb_external_trace(void);
726 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
727 int ctdb_parse_address(struct ctdb_context *ctdb,
728 TALLOC_CTX *mem_ctx, const char *str,
729 struct ctdb_address *address);
730 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
731 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
732 uint32_t ctdb_hash(const TDB_DATA *key);
733 uint32_t ctdb_hash_string(const char *str);
734 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
735 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
736 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
737 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
738 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
739 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
741 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
742 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
743 TDB_DATA key, struct ctdb_ltdb_header *header,
744 TALLOC_CTX *mem_ctx, TDB_DATA *data);
745 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
746 struct ctdb_ltdb_header *header, TDB_DATA data);
747 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
748 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
749 TDB_DATA key, struct ctdb_ltdb_header *header,
750 TALLOC_CTX *mem_ctx, TDB_DATA *data);
751 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
752 struct ctdb_req_control *c,
754 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
755 struct ctdb_req_control *c,
757 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
758 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
759 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
760 TDB_DATA key, struct ctdb_req_header *hdr,
761 void (*recv_pkt)(void *, struct ctdb_req_header *),
762 void *recv_context, bool ignore_generation);
763 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
764 TDB_DATA key, struct ctdb_ltdb_header *header,
765 struct ctdb_req_header *hdr, TDB_DATA *data,
766 void (*recv_pkt)(void *, struct ctdb_req_header *),
767 void *recv_context, bool ignore_generation);
768 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
770 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
771 struct ctdb_call *call,
772 struct ctdb_ltdb_header *header,
776 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork,
778 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
779 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
782 queue a packet for sending
784 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
787 setup the fd used by the queue
789 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
792 setup a packet queue on a socket
794 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
795 TALLOC_CTX *mem_ctx, int fd, int alignment,
797 ctdb_queue_cb_fn_t callback,
798 void *private_data, const char *fmt, ...)
799 PRINTF_ATTRIBUTE(7,8);
802 allocate a packet for use in client<->daemon communication
804 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
806 enum ctdb_operation operation,
807 size_t length, size_t slength,
809 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
810 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
812 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
814 enum ctdb_operation operation,
815 size_t length, size_t slength,
817 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
818 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
820 int ctdb_queue_length(struct ctdb_queue *queue);
823 lock a record in the ltdb, given a key
825 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
828 unlock a record in the ltdb, given a key
830 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
834 make a ctdb call to the local daemon - async send. Called from client context.
836 This constructs a ctdb_call request and queues it for processing.
837 This call never blocks.
839 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
840 struct ctdb_call *call);
843 make a recv call to the local ctdb daemon - called from client context
845 This is called when the program wants to wait for a ctdb_call to complete and get the
846 results. This call will block unless the call has already completed.
848 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
850 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
851 uint64_t srvid, TDB_DATA data);
856 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
857 uint64_t srvid, TDB_DATA data);
860 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
861 struct ctdb_call *call);
863 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
865 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
866 struct ctdb_call *call,
867 struct ctdb_ltdb_header *header);
869 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
870 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
871 TDB_DATA *data, bool updatetdb);
873 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
875 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
877 int ctdb_socket_connect(struct ctdb_context *ctdb);
878 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
880 #define CTDB_BAD_REQID ((uint32_t)-1)
881 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
882 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
883 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
885 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
886 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
888 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
889 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
891 ctdb_control_callback_fn_t callback,
894 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
895 TDB_DATA *outdata, uint64_t tdb_flags,
896 bool persistent, uint32_t client_id,
897 struct ctdb_req_control *c,
899 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
902 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
903 ctdb_fn_t fn, int id);
905 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
906 uint32_t opcode, uint32_t flags, TDB_DATA data,
907 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
908 struct timeval *timeout, char **errormsg);
909 int ctdb_control_recv(struct ctdb_context *ctdb,
910 struct ctdb_client_control_state *state,
912 TDB_DATA *outdata, int32_t *status, char **errormsg);
914 struct ctdb_client_control_state *
915 ctdb_control_send(struct ctdb_context *ctdb,
916 uint32_t destnode, uint64_t srvid,
917 uint32_t opcode, uint32_t flags, TDB_DATA data,
919 struct timeval *timeout,
925 #define CHECK_CONTROL_DATA_SIZE(size) do { \
926 if (indata.dsize != size) { \
927 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
928 opcode, (unsigned)indata.dsize, (unsigned)size)); \
933 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
934 if (indata.dsize < size) { \
935 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
936 opcode, (unsigned)indata.dsize, (unsigned)size)); \
941 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
942 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
943 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
944 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
945 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
946 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
949 /* structure used for pulldb control */
950 struct ctdb_control_pulldb {
955 /* structure used for sending lists of records */
956 struct ctdb_marshall_buffer {
963 structure for setting a tunable
965 struct ctdb_control_set_tunable {
972 structure for getting a tunable
974 struct ctdb_control_get_tunable {
980 structure for listing tunables
982 struct ctdb_control_list_tunable {
984 /* returns a : separated list of tunable names */
989 struct ctdb_node_and_flagsv4 {
992 struct sockaddr_in sin;
995 struct ctdb_node_mapv4 {
997 struct ctdb_node_and_flagsv4 nodes[1];
1000 struct ctdb_control_wipe_database {
1002 uint32_t transaction_id;
1006 state of a in-progress ctdb call in client
1008 struct ctdb_client_call_state {
1009 enum call_state state;
1011 struct ctdb_db_context *ctdb_db;
1012 struct ctdb_call *call;
1014 void (*fn)(struct ctdb_client_call_state *);
1020 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1024 uint32_t client_id);
1025 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1026 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1027 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1028 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1029 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1030 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1031 TDB_DATA *outdata, uint32_t srcnode);
1033 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1034 bool ctdb_check_message_handler(struct ctdb_context *ctdb, uint64_t srvid);
1036 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1037 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1038 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1039 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
1042 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1043 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1045 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1046 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1048 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1050 struct ctdb_ltdb_header *header,
1051 TDB_DATA *key, TDB_DATA *data);
1053 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1054 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1056 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1057 struct ctdb_req_control *c,
1058 TDB_DATA indata, bool *async_reply,
1059 const char **errormsg);
1060 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1061 TDB_DATA *outdata, int32_t status, const char *errormsg);
1063 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1064 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority,
1065 bool check_recmode);
1067 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1068 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1070 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1072 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1073 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1074 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1075 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
1076 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1077 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1078 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1079 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1080 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1083 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1084 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1085 void ctdb_node_dead(struct ctdb_node *node);
1086 void ctdb_node_connected(struct ctdb_node *node);
1087 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1088 void set_scheduler(void);
1089 void reset_scheduler(void);
1091 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
1092 void ctdb_track_child(struct ctdb_context *ctdb, pid_t pid);
1093 pid_t ctdb_fork(struct ctdb_context *ctdb);
1094 pid_t ctdb_fork_no_free_ringbuffer(struct ctdb_context *ctdb);
1095 void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt, ...);
1096 bool ctdb_is_child_process(void);
1097 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
1099 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1100 struct ctdb_req_control *c,
1103 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1104 struct ctdb_req_control *c,
1107 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1108 struct ctdb_req_control *c,
1111 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1112 struct ctdb_req_control *c,
1115 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
1116 struct ctdb_req_control *c,
1118 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1119 struct ctdb_req_control *c,
1121 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1122 struct ctdb_req_control *c,
1125 struct ctdb_public_ipv4 {
1127 struct sockaddr_in sin;
1130 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1131 uint32_t destnode, struct ctdb_public_ip *ip);
1132 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1133 uint32_t destnode, struct ctdb_public_ip *ip);
1135 struct ctdb_all_public_ipsv4 {
1137 struct ctdb_public_ipv4 ips[1];
1140 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1141 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1142 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1143 struct timeval timeout,
1145 TALLOC_CTX *mem_ctx,
1146 struct ctdb_all_public_ips **ips);
1147 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1148 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1149 struct timeval timeout, uint32_t destnode,
1150 TALLOC_CTX *mem_ctx,
1152 struct ctdb_all_public_ips **ips);
1153 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1154 struct timeval timeout, uint32_t destnode,
1155 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1157 struct ctdb_control_iface_info {
1158 char name[CTDB_IFACE_SIZE+2];
1159 uint16_t link_state;
1160 uint32_t references;
1163 struct ctdb_control_public_ip_info {
1164 struct ctdb_public_ip ip;
1165 uint32_t active_idx;
1167 struct ctdb_control_iface_info ifaces[1];
1170 struct ctdb_control_get_ifaces {
1172 struct ctdb_control_iface_info ifaces[1];
1175 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1176 struct ctdb_req_control *c,
1179 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1180 struct ctdb_req_control *c,
1182 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1183 struct ctdb_req_control *c,
1185 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1186 struct timeval timeout, uint32_t destnode,
1187 TALLOC_CTX *mem_ctx,
1188 const ctdb_sock_addr *addr,
1189 struct ctdb_control_public_ip_info **info);
1190 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1191 struct timeval timeout, uint32_t destnode,
1192 TALLOC_CTX *mem_ctx,
1193 struct ctdb_control_get_ifaces **ifaces);
1194 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1195 struct timeval timeout, uint32_t destnode,
1196 TALLOC_CTX *mem_ctx,
1197 const struct ctdb_control_iface_info *info);
1199 /* from takeover/system.c */
1200 uint32_t uint16_checksum(uint16_t *data, size_t n);
1201 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1202 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1203 char *ctdb_sys_find_ifname(ctdb_sock_addr *addr);
1204 bool ctdb_sys_check_iface_exists(const char *iface);
1205 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1206 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1207 const ctdb_sock_addr *src,
1208 uint32_t seq, uint32_t ack, int rst);
1210 /* Details of a byte range lock */
1211 struct ctdb_lock_info {
1218 char *ctdb_get_process_name(pid_t pid);
1219 int ctdb_set_process_name(const char *name);
1220 bool ctdb_get_lock_info(pid_t req_pid, struct ctdb_lock_info *lock_info);
1221 bool ctdb_get_blocker_pid(struct ctdb_lock_info *reqlock, pid_t *blocker_pid);
1223 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1225 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
1226 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1229 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1230 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1231 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap,
1232 uint32_t *force_rebalance_nodes,
1233 client_async_callback fail_callback, void *callback_data);
1235 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1237 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1238 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1239 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1240 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1241 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1242 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1243 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1245 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1246 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1247 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1248 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1249 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1250 TALLOC_CTX *mem_ctx,
1251 void (*callback)(struct ctdb_context *, int, void *),
1253 enum ctdb_eventscript_call call,
1254 const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1255 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1257 void set_nonblocking(int fd);
1258 void set_close_on_exec(int fd);
1260 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1262 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1264 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1266 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1267 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1268 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1269 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1270 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1271 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
1272 struct ctdb_req_control *c,
1273 TDB_DATA recdata, bool *async_reply);
1275 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1277 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1279 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1280 struct timeval timeout,
1282 struct ctdb_tunable *tunables);
1284 void ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1286 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1287 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1288 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1289 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1292 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1293 int ctdb_sys_close_capture_socket(void *private_data);
1294 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);
1296 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1297 struct timeval timeout,
1299 struct ctdb_control_killtcp *killtcp);
1301 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1302 struct timeval timeout,
1304 struct ctdb_control_ip_iface *pub);
1306 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1307 struct timeval timeout,
1309 struct ctdb_control_ip_iface *pub);
1311 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1312 struct timeval timeout,
1314 ctdb_sock_addr *addr,
1315 const char *ifname);
1317 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1318 struct timeval timeout,
1320 TALLOC_CTX *mem_ctx,
1321 ctdb_sock_addr *addr,
1322 struct ctdb_control_tcp_tickle_list **list);
1325 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1328 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1330 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1332 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1334 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1337 int ctdb_attach_databases(struct ctdb_context *ctdb);
1339 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1340 struct ctdb_req_control *c,
1341 TDB_DATA recdata, bool *async_reply);
1342 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1343 struct ctdb_req_control *c, TDB_DATA recdata,
1345 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1346 struct ctdb_req_control *c,
1347 TDB_DATA recdata, bool *async_reply);
1349 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1350 struct ctdb_req_control *c,
1351 TDB_DATA recdata, bool *async_reply);
1353 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1355 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1356 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1357 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1358 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1359 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1360 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1365 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1366 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1368 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1369 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
1370 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1371 void lockdown_memory(bool valgrinding);
1373 struct client_async_data {
1374 enum ctdb_controls opcode;
1375 bool dont_log_errors;
1377 uint32_t fail_count;
1378 client_async_callback callback;
1379 client_async_callback fail_callback;
1380 void *callback_data;
1382 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1383 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1384 int ctdb_client_async_control(struct ctdb_context *ctdb,
1385 enum ctdb_controls opcode,
1388 struct timeval timeout,
1389 bool dont_log_errors,
1391 client_async_callback client_callback,
1392 client_async_callback fail_callback,
1393 void *callback_data);
1395 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1397 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1399 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1400 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1402 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1403 struct ctdb_req_control *c);
1404 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1405 struct ctdb_req_control *c);
1406 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1407 struct ctdb_req_control *c,
1410 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1411 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1412 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1414 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1415 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1417 extern int script_log_level;
1418 extern bool fast_start;
1419 extern const char *ctdbd_pidfile;
1421 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1425 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1426 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1428 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
1429 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1431 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1432 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1434 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1435 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1437 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1438 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1439 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1440 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata,
1441 uint32_t client_id);
1442 void ctdb_ban_self(struct ctdb_context *ctdb);
1444 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1446 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1448 int start_syslog_daemon(struct ctdb_context *ctdb);
1450 /* Where to send the log messages back to */
1451 struct ctdb_get_log_addr {
1457 extern int log_ringbuf_size;
1459 TDB_DATA ctdb_log_ringbuffer_collect_log(TALLOC_CTX *mem_ctx,
1460 enum debug_level max_level);
1461 void ctdb_collect_log(struct ctdb_context *ctdb, struct ctdb_get_log_addr *log_addr);
1462 void ctdb_clear_log(struct ctdb_context *ctdb);
1463 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1464 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1465 void ctdb_log_ringbuffer_free(void);
1467 struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
1468 struct ctdb_context *ctdb,
1469 const char *log_prefix,
1472 const char **helper_argv,
1473 void (*logfn)(const char *, uint16_t, void *),
1474 void *logfn_private, pid_t *pid);
1477 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1478 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1480 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1484 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1485 struct ctdb_db_context *ctdb_db);
1486 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1487 struct ctdb_db_context *ctdb_db,
1488 const char *reason,/* NULL means healthy */
1489 int num_healthy_nodes);
1490 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1492 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1494 void ctdb_fault_setup(void);
1496 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1497 struct ctdb_all_public_ips *ips,
1499 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1500 struct ctdb_public_ip *ip);
1502 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1504 int ctdb_statistics_init(struct ctdb_context *ctdb);
1506 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1507 struct ctdb_req_control *c,
1510 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1512 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1515 * structure to pass to a schedule_for_deletion_control
1517 struct ctdb_control_schedule_for_deletion {
1519 struct ctdb_ltdb_header hdr;
1521 uint8_t key[1]; /* key[] */
1524 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1528 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1529 const struct ctdb_ltdb_header *hdr,
1532 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1533 const struct ctdb_ltdb_header *hdr,
1534 const TDB_DATA key);
1536 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1538 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1540 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1542 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1544 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);
1546 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1548 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);
1550 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1552 int ctdb_null_func(struct ctdb_call_info *call);
1554 int ctdb_fetch_func(struct ctdb_call_info *call);
1556 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1558 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1562 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1565 description for a message to reload all ips via recovery master/daemon
1567 struct reloadips_all_reply {
1572 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1574 int ctdb_start_monitoring_interfaces(struct ctdb_context *ctdb);
1576 /* from server/ctdb_lock.c */
1577 struct lock_request;
1579 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
1580 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
1582 void ctdb_lock_free_request_context(struct lock_request *lock_req);
1584 struct lock_request *ctdb_lock_record(struct ctdb_db_context *ctdb_db,
1587 void (*callback)(void *, bool),
1588 void *private_data);
1590 struct lock_request *ctdb_lock_db(struct ctdb_db_context *ctdb_db,
1592 void (*callback)(void *, bool),
1593 void *private_data);
1595 struct lock_request *ctdb_lock_alldb_prio(struct ctdb_context *ctdb,
1598 void (*callback)(void *, bool),
1599 void *private_data);
1601 struct lock_request *ctdb_lock_alldb(struct ctdb_context *ctdb,
1603 void (*callback)(void *, bool),
1604 void *private_data);
1606 int mkdir_p(const char *dir, int mode);
1607 void mkdir_p_or_die(const char *dir, int mode);