4 Copyright (C) Andrew Tridgell 2006
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #ifndef _CTDB_PRIVATE_H
21 #define _CTDB_PRIVATE_H
23 #include "ctdb_client.h"
24 #include <sys/socket.h>
27 recovery daemon memdump reply address
29 struct rd_memdump_reply {
35 description for a TAKEOVER_RUN message reply address
37 struct takeover_run_reply {
43 * pid of the ctdbd daemon
45 extern pid_t ctdbd_pid;
48 a tcp connection description
49 also used by tcp_add and tcp_remove controls
51 struct ctdb_tcp_connection {
52 ctdb_sock_addr src_addr;
53 ctdb_sock_addr dst_addr;
56 /* the wire representation for a tcp tickle array */
57 struct ctdb_tcp_wire_array {
59 struct ctdb_tcp_connection connections[1];
62 /* the list of tcp tickles used by get/set tcp tickle list */
63 struct ctdb_control_tcp_tickle_list {
65 struct ctdb_tcp_wire_array tickles;
69 array of tcp connections
71 struct ctdb_tcp_array {
73 struct ctdb_tcp_connection *connections;
77 /* all tunable variables go in here */
79 uint32_t max_redirect_count;
80 uint32_t seqnum_interval; /* unit is ms */
81 uint32_t control_timeout;
82 uint32_t traverse_timeout;
83 uint32_t keepalive_interval;
84 uint32_t keepalive_limit;
85 uint32_t recover_timeout;
86 uint32_t recover_interval;
87 uint32_t election_timeout;
88 uint32_t takeover_timeout;
89 uint32_t monitor_interval;
90 uint32_t tickle_update_interval;
91 uint32_t script_timeout;
92 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
93 uint32_t script_unhealthy_on_timeout; /* obsolete */
94 uint32_t recovery_grace_period;
95 uint32_t recovery_ban_period;
96 uint32_t database_hash_size;
97 uint32_t database_max_dead;
98 uint32_t rerecovery_timeout;
100 uint32_t deterministic_public_ips;
101 uint32_t reclock_ping_period;
102 uint32_t no_ip_failback;
103 uint32_t disable_ip_failover;
104 uint32_t verbose_memory_names;
105 uint32_t recd_ping_timeout;
106 uint32_t recd_ping_failcount;
107 uint32_t log_latency_ms;
108 uint32_t reclock_latency_ms;
109 uint32_t recovery_drop_all_ips;
110 uint32_t verify_recovery_lock;
111 uint32_t vacuum_default_interval;
112 uint32_t vacuum_max_run_time;
113 uint32_t repack_limit;
114 uint32_t vacuum_limit;
115 uint32_t vacuum_min_interval;
116 uint32_t vacuum_max_interval;
117 uint32_t max_queue_depth_drop_msg;
118 uint32_t use_status_events_for_monitoring;
119 uint32_t allow_unhealthy_db_read;
120 uint32_t stat_history_interval;
121 uint32_t deferred_attach_timeout;
122 uint32_t vacuum_fast_path_count;
123 uint32_t lcp2_public_ip_assignment;
127 an installed ctdb remote call
129 struct ctdb_registered_call {
130 struct ctdb_registered_call *next, *prev;
136 this address structure might need to be generalised later for some
139 struct ctdb_address {
145 check that a pnn is valid
147 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
150 /* called from the queue code when a packet comes in. Called with data==NULL
152 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
155 /* used for callbacks in ctdb_control requests */
156 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
157 int32_t status, TDB_DATA data,
158 const char *errormsg,
161 structure describing a connected client in the daemon
164 struct ctdb_context *ctdb;
166 struct ctdb_queue *queue;
169 struct ctdb_tcp_list *tcp_list;
171 uint32_t num_persistent_updates;
172 struct ctdb_client_notify_list *notify;
177 /* state associated with a public ip address */
179 struct ctdb_vnn *prev, *next;
181 struct ctdb_iface *iface;
183 ctdb_sock_addr public_address;
184 uint8_t public_netmask_bits;
186 /* the node number that is serving this public address, if any.
187 If no node serves this ip it is set to -1 */
190 /* List of clients to tickle for this public address */
191 struct ctdb_tcp_array *tcp_array;
193 /* whether we need to update the other nodes with changes to our list
194 of connected clients */
195 bool tcp_update_needed;
197 /* a context to hang sending gratious arp events off */
198 TALLOC_CTX *takeover_ctx;
200 struct ctdb_kill_tcp *killtcp;
204 state associated with one node
207 struct ctdb_context *ctdb;
208 struct ctdb_address address;
209 const char *name; /* for debug messages */
210 void *private_data; /* private to transport */
214 /* used by the dead node monitoring */
219 /* used to track node capabilities, is only valid/tracked inside the
222 uint32_t capabilities;
224 /* a list of controls pending to this node, so we can time them out quickly
225 if the node becomes disconnected */
226 struct daemon_control_state *pending_controls;
228 /* used by the recovery daemon when distributing ip addresses
229 across the nodes. it needs to know which public ip's can be handled
232 struct ctdb_all_public_ips *known_public_ips;
233 struct ctdb_all_public_ips *available_public_ips;
234 /* used by the recovery dameon to track when a node should be banned */
235 struct ctdb_banning_state *ban_state;
239 transport specific methods
241 struct ctdb_methods {
242 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
243 int (*start)(struct ctdb_context *); /* start the transport */
244 int (*add_node)(struct ctdb_node *); /* setup a new node */
245 int (*connect_node)(struct ctdb_node *); /* connect to node */
246 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
247 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
248 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
249 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
253 transport calls up to the ctdb layer
255 struct ctdb_upcalls {
256 /* recv_pkt is called when a packet comes in */
257 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
259 /* node_dead is called when an attempt to send to a node fails */
260 void (*node_dead)(struct ctdb_node *);
262 /* node_connected is called when a connection to a node is established */
263 void (*node_connected)(struct ctdb_node *);
266 /* list of message handlers - needs to be changed to a more efficient data
267 structure so we can find a message handler given a srvid quickly */
268 struct ctdb_message_list {
269 struct ctdb_context *ctdb;
270 struct ctdb_message_list *next, *prev;
272 ctdb_msg_fn_t message_handler;
273 void *message_private;
276 /* additional data required for the daemon mode */
277 struct ctdb_daemon_data {
280 struct ctdb_queue *queue;
284 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
286 if (value > ctdb->statistics.counter) { \
287 ctdb->statistics.counter = c->hopcount; \
289 if (value > ctdb->statistics_current.counter) { \
290 ctdb->statistics_current.counter = c->hopcount; \
294 #define CTDB_INCREMENT_STAT(ctdb, counter) \
296 ctdb->statistics.counter++; \
297 ctdb->statistics_current.counter++; \
300 #define CTDB_DECREMENT_STAT(ctdb, counter) \
302 if (ctdb->statistics.counter > 0) \
303 ctdb->statistics.counter--; \
304 if (ctdb->statistics_current.counter > 0) \
305 ctdb->statistics_current.counter--; \
308 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
310 if (value > ctdb->statistics.counter.max) \
311 ctdb->statistics.counter.max = value; \
312 if (value > ctdb->statistics_current.counter.max) \
313 ctdb->statistics_current.counter.max = value; \
315 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
316 ctdb->statistics.counter.min = value; \
317 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
318 ctdb->statistics_current.counter.min = value; \
320 ctdb->statistics.counter.total += value; \
321 ctdb->statistics_current.counter.total += value; \
323 ctdb->statistics.counter.num++; \
324 ctdb->statistics_current.counter.num++; \
326 if (ctdb->tunable.reclock_latency_ms != 0) { \
327 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
328 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
334 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
336 double l = timeval_elapsed(&t); \
338 if (l > ctdb->statistics.counter.max) \
339 ctdb->statistics.counter.max = l; \
340 if (l > ctdb->statistics_current.counter.max) \
341 ctdb->statistics_current.counter.max = l; \
343 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
344 ctdb->statistics.counter.min = l; \
345 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
346 ctdb->statistics_current.counter.min = l; \
348 ctdb->statistics.counter.total += l; \
349 ctdb->statistics_current.counter.total += l; \
351 ctdb->statistics.counter.num++; \
352 ctdb->statistics_current.counter.num++; \
354 if (ctdb->tunable.log_latency_ms !=0) { \
355 if (l*1000 > ctdb->tunable.log_latency_ms) { \
356 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
365 #define INVALID_GENERATION 1
366 /* table that contains the mapping between a hash value and lmaster
368 struct ctdb_vnn_map {
375 a wire representation of the vnn map
377 struct ctdb_vnn_map_wire {
383 /* a structure that contains the elements required for the write record
386 struct ctdb_write_record {
390 unsigned char blob[1];
393 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
395 #define CTDB_MONITORING_ACTIVE 0
396 #define CTDB_MONITORING_DISABLED 1
398 /* The different capabilities of the ctdb daemon. */
399 #define CTDB_CAP_RECMASTER 0x00000001
400 #define CTDB_CAP_LMASTER 0x00000002
401 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
402 #define CTDB_CAP_LVS 0x00000004
403 /* This capability is set if NATGW is enabled */
404 #define CTDB_CAP_NATGW 0x00000008
406 #define NUM_DB_PRIORITIES 3
407 /* main state of the ctdb daemon */
408 struct ctdb_context {
409 struct tevent_context *ev;
410 struct timeval ctdbd_start_time;
411 struct timeval last_recovery_started;
412 struct timeval last_recovery_finished;
413 uint32_t recovery_mode;
414 TALLOC_CTX *tickle_update_context;
415 TALLOC_CTX *keepalive_ctx;
416 struct ctdb_tunable tunable;
417 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
418 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
419 bool freeze_transaction_started;
420 uint32_t freeze_transaction_id;
421 struct ctdb_address address;
423 const char *db_directory;
424 const char *db_directory_persistent;
425 const char *db_directory_state;
426 struct tdb_wrap *db_persistent_health;
427 uint32_t db_persistent_startup_generation;
428 uint64_t db_persistent_check_errors;
429 uint64_t max_persistent_check_errors;
430 const char *transport;
431 char *recovery_lock_file;
432 int recovery_lock_fd;
433 uint32_t pnn; /* our own pnn */
435 uint32_t num_connected;
437 uint32_t capabilities;
438 struct idr_context *idr;
440 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
441 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
442 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
443 struct ctdb_iface *ifaces; /* list of local interfaces */
445 const struct ctdb_methods *methods; /* transport methods */
446 const struct ctdb_upcalls *upcalls; /* transport upcalls */
447 void *private_data; /* private to transport */
448 struct ctdb_db_context *db_list;
449 struct ctdb_message_list *message_list;
450 struct ctdb_daemon_data daemon;
451 struct ctdb_statistics statistics;
452 struct ctdb_statistics statistics_current;
453 #define MAX_STAT_HISTORY 100
454 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
455 struct ctdb_vnn_map *vnn_map;
456 uint32_t num_clients;
457 uint32_t recovery_master;
458 struct ctdb_call_state *pending_calls;
459 struct ctdb_client_ip *client_ip_list;
460 struct trbt_tree *server_ids;
462 void *saved_scheduler_param;
463 const char *event_script_dir;
464 const char *notification_script;
465 const char *default_public_interface;
471 struct ctdb_monitor_state *monitor;
472 struct ctdb_log_state *log;
473 int start_as_disabled;
474 int start_as_stopped;
476 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
477 uint32_t *recd_ping_count;
478 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
480 TALLOC_CTX *event_script_ctx;
482 struct ctdb_event_script_state *current_monitor;
483 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
485 TALLOC_CTX *banning_ctx;
487 struct ctdb_vacuum_child_context *vacuumers;
489 /* mapping from pid to ctdb_client * */
490 struct ctdb_client_pid_list *client_pids;
492 /* used in the recovery daemon to remember the ip allocation */
493 struct trbt_tree *ip_tree;
495 /* Used to defer db attach requests while in recovery mode */
496 struct ctdb_deferred_attach_context *deferred_attach;
499 struct ctdb_db_context {
500 struct ctdb_db_context *next, *prev;
501 struct ctdb_context *ctdb;
505 bool readonly; /* Do we support read-only delegations ? */
508 struct tdb_wrap *ltdb;
509 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
510 struct ctdb_registered_call *calls; /* list of registered calls */
512 struct timed_event *seqnum_update;
513 struct ctdb_traverse_local_handle *traverse;
514 bool transaction_active;
515 struct ctdb_vacuum_handle *vacuum_handle;
516 char *unhealthy_reason;
517 int pending_requests;
518 struct lockwait_handle *lockwait_active;
519 struct lockwait_handle *lockwait_overflow;
520 struct revokechild_handle *revokechild_active;
521 struct ctdb_persistent_state *persistent_state;
522 struct trbt_tree *delete_queue;
523 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
525 struct ctdb_ltdb_header *header,
531 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
532 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
533 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
534 return -1; }} while (0)
536 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
537 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
538 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
541 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
542 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
543 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
544 return NULL; }} while (0)
546 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
547 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
548 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
552 structure passed in set_call control
554 struct ctdb_control_set_call {
561 struct for kill_tcp control
563 struct ctdb_control_killtcp {
564 ctdb_sock_addr src_addr;
565 ctdb_sock_addr dst_addr;
569 struct holding a ctdb_sock_addr and an interface name,
570 used to add/remove public addresses
572 struct ctdb_control_ip_iface {
580 struct holding a ctdb_sock_addr and an interface name,
581 used for send_gratious_arp
583 struct ctdb_control_gratious_arp {
591 persistent store control - update this record on all other nodes
593 struct ctdb_control_persistent_store {
600 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
602 struct ctdb_node_flag_change {
609 struct for admin setting a ban
611 struct ctdb_ban_info {
616 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
618 #define CTDB_LMASTER_ANY 0xffffffff
621 state of a in-progress ctdb call
623 struct ctdb_call_state {
624 struct ctdb_call_state *next, *prev;
625 enum call_state state;
627 struct ctdb_req_call *c;
628 struct ctdb_db_context *ctdb_db;
630 struct ctdb_call *call;
633 void (*fn)(struct ctdb_call_state *);
639 /* used for fetch_lock */
640 struct ctdb_fetch_handle {
641 struct ctdb_db_context *ctdb_db;
644 struct ctdb_ltdb_header header;
647 /* internal prototypes */
648 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
649 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
650 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
651 int ctdb_parse_address(struct ctdb_context *ctdb,
652 TALLOC_CTX *mem_ctx, const char *str,
653 struct ctdb_address *address);
654 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
655 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
656 uint32_t ctdb_hash(const TDB_DATA *key);
657 uint32_t ctdb_hash_string(const char *str);
658 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
659 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
660 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
661 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
662 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
663 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
665 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
666 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
667 TDB_DATA key, struct ctdb_ltdb_header *header,
668 TALLOC_CTX *mem_ctx, TDB_DATA *data);
669 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
670 struct ctdb_ltdb_header *header, TDB_DATA data);
671 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
672 int ctdb_ltdb_fetch_readonly(struct ctdb_db_context *ctdb_db,
673 TDB_DATA key, struct ctdb_ltdb_header *header,
674 TALLOC_CTX *mem_ctx, TDB_DATA *data);
675 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
676 struct ctdb_req_control *c,
678 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
679 struct ctdb_req_control *c,
681 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
682 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
683 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
684 TDB_DATA key, struct ctdb_req_header *hdr,
685 void (*recv_pkt)(void *, struct ctdb_req_header *),
686 void *recv_context, bool ignore_generation);
687 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
688 TDB_DATA key, struct ctdb_ltdb_header *header,
689 struct ctdb_req_header *hdr, TDB_DATA *data,
690 void (*recv_pkt)(void *, struct ctdb_req_header *),
691 void *recv_context, bool ignore_generation);
692 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
694 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
695 struct ctdb_call *call,
696 struct ctdb_ltdb_header *header,
700 int ctdbd_start(struct ctdb_context *ctdb);
701 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
702 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
705 queue a packet for sending
707 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
710 setup the fd used by the queue
712 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
715 setup a packet queue on a socket
717 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
718 TALLOC_CTX *mem_ctx, int fd, int alignment,
720 ctdb_queue_cb_fn_t callback,
721 void *private_data, const char *fmt, ...)
722 PRINTF_ATTRIBUTE(7,8);
725 allocate a packet for use in client<->daemon communication
727 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
729 enum ctdb_operation operation,
730 size_t length, size_t slength,
732 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
733 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
735 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
737 enum ctdb_operation operation,
738 size_t length, size_t slength,
740 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
741 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
743 int ctdb_queue_length(struct ctdb_queue *queue);
746 lock a record in the ltdb, given a key
748 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
751 unlock a record in the ltdb, given a key
753 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
757 make a ctdb call to the local daemon - async send. Called from client context.
759 This constructs a ctdb_call request and queues it for processing.
760 This call never blocks.
762 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
763 struct ctdb_call *call);
766 make a recv call to the local ctdb daemon - called from client context
768 This is called when the program wants to wait for a ctdb_call to complete and get the
769 results. This call will block unless the call has already completed.
771 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
773 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
774 uint64_t srvid, TDB_DATA data);
779 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
780 uint64_t srvid, TDB_DATA data);
783 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
785 void (*callback)(void *), void *private_data);
787 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
788 struct ctdb_call *call);
790 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
792 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
793 struct ctdb_call *call,
794 struct ctdb_ltdb_header *header);
796 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
797 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
798 TDB_DATA *data, bool updatetdb);
800 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
802 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
804 int ctdb_socket_connect(struct ctdb_context *ctdb);
806 #define CTDB_BAD_REQID ((uint32_t)-1)
807 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
808 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
809 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
811 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
812 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
814 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
815 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
817 ctdb_control_callback_fn_t callback,
820 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
821 TDB_DATA *outdata, uint64_t tdb_flags,
822 bool persistent, uint32_t client_id,
823 struct ctdb_req_control *c,
826 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
827 ctdb_fn_t fn, int id);
829 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
830 uint32_t opcode, uint32_t flags, TDB_DATA data,
831 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
832 struct timeval *timeout, char **errormsg);
833 int ctdb_control_recv(struct ctdb_context *ctdb,
834 struct ctdb_client_control_state *state,
836 TDB_DATA *outdata, int32_t *status, char **errormsg);
838 struct ctdb_client_control_state *
839 ctdb_control_send(struct ctdb_context *ctdb,
840 uint32_t destnode, uint64_t srvid,
841 uint32_t opcode, uint32_t flags, TDB_DATA data,
843 struct timeval *timeout,
849 #define CHECK_CONTROL_DATA_SIZE(size) do { \
850 if (indata.dsize != size) { \
851 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
852 opcode, (unsigned)indata.dsize, (unsigned)size)); \
857 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
858 if (indata.dsize < size) { \
859 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
860 opcode, (unsigned)indata.dsize, (unsigned)size)); \
865 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
866 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
867 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
868 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
869 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
870 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
873 /* structure used for pulldb control */
874 struct ctdb_control_pulldb {
879 /* structure used for sending lists of records */
880 struct ctdb_marshall_buffer {
886 /* set dmaster control structure */
887 struct ctdb_control_set_dmaster {
893 structure for setting a tunable
895 struct ctdb_control_set_tunable {
902 structure for getting a tunable
904 struct ctdb_control_get_tunable {
910 structure for listing tunables
912 struct ctdb_control_list_tunable {
914 /* returns a : separated list of tunable names */
919 struct ctdb_node_and_flagsv4 {
922 struct sockaddr_in sin;
925 struct ctdb_node_mapv4 {
927 struct ctdb_node_and_flagsv4 nodes[1];
930 struct ctdb_control_wipe_database {
932 uint32_t transaction_id;
936 state of a in-progress ctdb call in client
938 struct ctdb_client_call_state {
939 enum call_state state;
941 struct ctdb_db_context *ctdb_db;
942 struct ctdb_call *call;
944 void (*fn)(struct ctdb_client_call_state *);
950 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
951 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
952 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
953 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
954 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
955 TDB_DATA *outdata, uint32_t srcnode);
957 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
959 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
960 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
961 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
963 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
964 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
966 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
967 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
969 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
971 struct ctdb_ltdb_header *header,
972 TDB_DATA *key, TDB_DATA *data);
974 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
975 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
976 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
978 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
979 struct ctdb_req_control *c,
980 TDB_DATA indata, bool *async_reply,
981 const char **errormsg);
982 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
983 TDB_DATA *outdata, int32_t status, const char *errormsg);
985 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
986 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
988 int ctdb_start_recoverd(struct ctdb_context *ctdb);
989 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
991 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
993 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
994 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
995 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
996 void ctdb_start_monitoring(struct ctdb_context *ctdb);
997 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
998 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
999 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1000 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1001 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1004 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1005 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1006 void ctdb_node_dead(struct ctdb_node *node);
1007 void ctdb_node_connected(struct ctdb_node *node);
1008 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1009 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1010 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1011 pid_t ctdb_fork(struct ctdb_context *ctdb);
1012 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1013 struct ctdb_req_control *c,
1016 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1017 struct ctdb_req_control *c,
1020 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1021 struct ctdb_req_control *c,
1024 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1025 struct ctdb_req_control *c,
1028 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1029 struct ctdb_req_control *c,
1031 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1032 struct ctdb_req_control *c,
1035 struct ctdb_public_ipv4 {
1037 struct sockaddr_in sin;
1040 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1041 uint32_t destnode, struct ctdb_public_ip *ip);
1042 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1043 uint32_t destnode, struct ctdb_public_ip *ip);
1045 struct ctdb_all_public_ipsv4 {
1047 struct ctdb_public_ipv4 ips[1];
1050 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1051 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1052 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1053 struct timeval timeout,
1055 TALLOC_CTX *mem_ctx,
1056 struct ctdb_all_public_ips **ips);
1057 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1058 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1059 struct timeval timeout, uint32_t destnode,
1060 TALLOC_CTX *mem_ctx,
1062 struct ctdb_all_public_ips **ips);
1063 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1064 struct timeval timeout, uint32_t destnode,
1065 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1068 #define CTDB_IFACE_SIZE IFNAMSIZ
1070 #define CTDB_IFACE_SIZE 16
1073 struct ctdb_control_iface_info {
1074 char name[CTDB_IFACE_SIZE+2];
1075 uint16_t link_state;
1076 uint32_t references;
1079 struct ctdb_control_public_ip_info {
1080 struct ctdb_public_ip ip;
1081 uint32_t active_idx;
1083 struct ctdb_control_iface_info ifaces[1];
1086 struct ctdb_control_get_ifaces {
1088 struct ctdb_control_iface_info ifaces[1];
1091 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1092 struct ctdb_req_control *c,
1095 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1096 struct ctdb_req_control *c,
1098 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1099 struct ctdb_req_control *c,
1101 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1102 struct timeval timeout, uint32_t destnode,
1103 TALLOC_CTX *mem_ctx,
1104 const ctdb_sock_addr *addr,
1105 struct ctdb_control_public_ip_info **info);
1106 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1107 struct timeval timeout, uint32_t destnode,
1108 TALLOC_CTX *mem_ctx,
1109 struct ctdb_control_get_ifaces **ifaces);
1110 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1111 struct timeval timeout, uint32_t destnode,
1112 TALLOC_CTX *mem_ctx,
1113 const struct ctdb_control_iface_info *info);
1115 /* from takeover/system.c */
1116 uint32_t uint16_checksum(uint16_t *data, size_t n);
1117 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1118 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1119 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1120 const ctdb_sock_addr *src,
1121 uint32_t seq, uint32_t ack, int rst);
1123 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1124 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1127 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1128 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1129 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1130 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1132 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1134 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1135 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1136 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1137 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1138 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1139 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1140 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1142 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1143 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1144 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1145 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1146 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1147 TALLOC_CTX *mem_ctx,
1148 void (*callback)(struct ctdb_context *, int, void *),
1151 enum ctdb_eventscript_call call,
1152 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1153 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1155 void set_nonblocking(int fd);
1156 void set_close_on_exec(int fd);
1158 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1160 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1162 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1164 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1165 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1166 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1167 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1168 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1170 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1172 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1174 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1175 struct timeval timeout,
1177 struct ctdb_tunable *tunables);
1179 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1181 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1182 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1183 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1184 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1187 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1188 int ctdb_sys_close_capture_socket(void *private_data);
1189 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);
1191 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1192 struct timeval timeout,
1194 struct ctdb_control_killtcp *killtcp);
1196 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1197 struct timeval timeout,
1199 struct ctdb_control_ip_iface *pub);
1201 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1202 struct timeval timeout,
1204 struct ctdb_control_ip_iface *pub);
1206 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1207 struct timeval timeout,
1209 ctdb_sock_addr *addr,
1210 const char *ifname);
1212 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1213 struct timeval timeout,
1215 TALLOC_CTX *mem_ctx,
1216 ctdb_sock_addr *addr,
1217 struct ctdb_control_tcp_tickle_list **list);
1220 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1223 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1225 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1227 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1229 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1232 int ctdb_attach_databases(struct ctdb_context *ctdb);
1234 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1235 struct ctdb_req_control *c,
1236 TDB_DATA recdata, bool *async_reply);
1237 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1238 struct ctdb_req_control *c, TDB_DATA recdata,
1240 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1241 struct ctdb_req_control *c,
1242 TDB_DATA recdata, bool *async_reply);
1244 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1245 struct ctdb_req_control *c,
1246 TDB_DATA recdata, bool *async_reply);
1248 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1250 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1251 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1252 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1253 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1254 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1255 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1260 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1261 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1263 void ctdb_block_signal(int signum);
1264 void ctdb_unblock_signal(int signum);
1265 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1266 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1267 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1269 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1271 struct client_async_data {
1272 enum ctdb_controls opcode;
1273 bool dont_log_errors;
1275 uint32_t fail_count;
1276 client_async_callback callback;
1277 client_async_callback fail_callback;
1278 void *callback_data;
1280 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1281 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1282 int ctdb_client_async_control(struct ctdb_context *ctdb,
1283 enum ctdb_controls opcode,
1286 struct timeval timeout,
1287 bool dont_log_errors,
1289 client_async_callback client_callback,
1290 client_async_callback fail_callback,
1291 void *callback_data);
1293 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1295 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1297 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1298 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1300 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1301 struct ctdb_req_control *c);
1302 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1303 struct ctdb_req_control *c);
1304 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1305 struct ctdb_req_control *c,
1308 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1309 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1310 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1312 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1313 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1315 extern int script_log_level;
1316 extern bool fast_start;
1318 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1322 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1323 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1325 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1326 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1328 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1329 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1331 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1332 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1334 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1335 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1336 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1337 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1338 void ctdb_ban_self(struct ctdb_context *ctdb);
1340 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1342 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1344 int start_syslog_daemon(struct ctdb_context *ctdb);
1346 /* Where to send the log messages back to */
1347 struct ctdb_get_log_addr {
1353 extern int log_ringbuf_size;
1355 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1356 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1359 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1360 struct ctdb_context *ctdb,
1361 void (*logfn)(const char *, uint16_t, void *),
1362 void *logfn_private, pid_t *pid);
1364 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1365 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1367 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1371 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1372 struct ctdb_db_context *ctdb_db);
1373 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1374 struct ctdb_db_context *ctdb_db,
1375 const char *reason,/* NULL means healthy */
1376 int num_healthy_nodes);
1377 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1379 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1381 void ctdb_fault_setup(void);
1383 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1384 struct ctdb_all_public_ips *ips);
1385 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1386 struct ctdb_public_ip *ip);
1388 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1390 int ctdb_statistics_init(struct ctdb_context *ctdb);
1392 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1393 struct ctdb_req_control *c,
1396 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1398 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1401 * structure to pass to a schedule_for_deletion_control
1403 struct ctdb_control_schedule_for_deletion {
1405 struct ctdb_ltdb_header hdr;
1407 uint8_t key[1]; /* key[] */
1410 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1414 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1415 const struct ctdb_ltdb_header *hdr,
1418 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1420 /* For unit testing ctdb_transaction.c. */
1421 struct ctdb_public_ip_list {
1422 struct ctdb_public_ip_list *next;
1424 ctdb_sock_addr addr;
1426 uint32_t ip_distance(ctdb_sock_addr *ip1, ctdb_sock_addr *ip2);
1427 uint32_t ip_distance_2_sum(ctdb_sock_addr *ip,
1428 struct ctdb_public_ip_list *ips,
1430 uint32_t lcp2_imbalance(struct ctdb_public_ip_list * all_ips, int pnn);
1431 void lcp2_init(struct ctdb_context * tmp_ctx,
1432 struct ctdb_node_map * nodemap,
1434 struct ctdb_public_ip_list *all_ips,
1435 uint32_t **lcp2_imbalances,
1436 bool **newly_healthy);
1437 void lcp2_allocate_unassigned(struct ctdb_context *ctdb,
1438 struct ctdb_node_map *nodemap,
1440 struct ctdb_public_ip_list *all_ips,
1441 uint32_t *lcp2_imbalances);
1442 bool lcp2_failback(struct ctdb_context *ctdb,
1443 struct ctdb_node_map *nodemap,
1445 struct ctdb_public_ip_list *all_ips,
1446 uint32_t *lcp2_imbalances,
1447 bool *newly_healthy);
1448 void ctdb_takeover_run_core(struct ctdb_context *ctdb,
1449 struct ctdb_node_map *nodemap,
1450 struct ctdb_public_ip_list **all_ips_p);
1452 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1454 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1456 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1458 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);
1460 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1462 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);