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
24 #include <sys/socket.h>
26 /* location of daemon socket */
27 #define CTDB_PATH "/tmp/ctdb.socket"
29 /* default ctdb port number */
30 #define CTDB_PORT 4379
32 /* we must align packets to ensure ctdb works on all architectures (eg. sparc) */
33 #define CTDB_DS_ALIGNMENT 8
36 #define CTDB_NULL_FUNC 0xFF000001
37 #define CTDB_FETCH_FUNC 0xFF000002
41 recovery daemon memdump reply address
43 struct rd_memdump_reply {
49 description for a TAKEOVER_RUN message reply address
51 struct takeover_run_reply {
57 * pid of the ctdbd daemon
59 extern pid_t ctdbd_pid;
62 a tcp connection description
64 struct ctdb_tcp_connection {
65 ctdb_sock_addr src_addr;
66 ctdb_sock_addr dst_addr;
69 /* the wire representation for a tcp tickle array */
70 struct ctdb_tcp_wire_array {
72 struct ctdb_tcp_connection connections[1];
75 /* the list of tcp tickles used by get/set tcp tickle list */
76 struct ctdb_control_tcp_tickle_list {
78 struct ctdb_tcp_wire_array tickles;
82 array of tcp connections
84 struct ctdb_tcp_array {
86 struct ctdb_tcp_connection *connections;
90 /* all tunable variables go in here */
92 uint32_t max_redirect_count;
93 uint32_t seqnum_interval; /* unit is ms */
94 uint32_t control_timeout;
95 uint32_t traverse_timeout;
96 uint32_t keepalive_interval;
97 uint32_t keepalive_limit;
98 uint32_t recover_timeout;
99 uint32_t recover_interval;
100 uint32_t election_timeout;
101 uint32_t takeover_timeout;
102 uint32_t monitor_interval;
103 uint32_t tickle_update_interval;
104 uint32_t script_timeout;
105 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
106 uint32_t script_unhealthy_on_timeout; /* obsolete */
107 uint32_t recovery_grace_period;
108 uint32_t recovery_ban_period;
109 uint32_t database_hash_size;
110 uint32_t database_max_dead;
111 uint32_t rerecovery_timeout;
112 uint32_t enable_bans;
113 uint32_t deterministic_public_ips;
114 uint32_t reclock_ping_period;
115 uint32_t no_ip_failback;
116 uint32_t verbose_memory_names;
117 uint32_t recd_ping_timeout;
118 uint32_t recd_ping_failcount;
119 uint32_t log_latency_ms;
120 uint32_t reclock_latency_ms;
121 uint32_t recovery_drop_all_ips;
122 uint32_t verify_recovery_lock;
123 uint32_t vacuum_interval;
124 uint32_t vacuum_default_interval;
125 uint32_t vacuum_max_run_time;
126 uint32_t repack_limit;
127 uint32_t vacuum_limit;
128 uint32_t vacuum_min_interval;
129 uint32_t vacuum_max_interval;
130 uint32_t max_queue_depth_drop_msg;
131 uint32_t use_status_events_for_monitoring;
132 uint32_t allow_unhealthy_db_read;
133 uint32_t vacuum_fast_path_count;
137 an installed ctdb remote call
139 struct ctdb_registered_call {
140 struct ctdb_registered_call *next, *prev;
146 this address structure might need to be generalised later for some
149 struct ctdb_address {
155 check that a pnn is valid
157 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
160 /* called from the queue code when a packet comes in. Called with data==NULL
162 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
165 /* used for callbacks in ctdb_control requests */
166 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
167 int32_t status, TDB_DATA data,
168 const char *errormsg,
171 structure describing a connected client in the daemon
174 struct ctdb_context *ctdb;
176 struct ctdb_queue *queue;
179 struct ctdb_tcp_list *tcp_list;
181 uint32_t num_persistent_updates;
182 struct ctdb_client_notify_list *notify;
187 /* state associated with a public ip address */
189 struct ctdb_vnn *prev, *next;
191 struct ctdb_iface *iface;
193 ctdb_sock_addr public_address;
194 uint8_t public_netmask_bits;
196 /* the node number that is serving this public address, if any.
197 If no node serves this ip it is set to -1 */
200 /* List of clients to tickle for this public address */
201 struct ctdb_tcp_array *tcp_array;
203 /* whether we need to update the other nodes with changes to our list
204 of connected clients */
205 bool tcp_update_needed;
207 /* a context to hang sending gratious arp events off */
208 TALLOC_CTX *takeover_ctx;
210 struct ctdb_kill_tcp *killtcp;
214 state associated with one node
217 struct ctdb_context *ctdb;
218 struct ctdb_address address;
219 const char *name; /* for debug messages */
220 void *private_data; /* private to transport */
222 #define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
223 #define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
224 #define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
225 #define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
226 #define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
227 #define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
228 #define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
229 #define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
232 /* used by the dead node monitoring */
237 /* used to track node capabilities, is only valid/tracked inside the
240 uint32_t capabilities;
242 /* a list of controls pending to this node, so we can time them out quickly
243 if the node becomes disconnected */
244 struct daemon_control_state *pending_controls;
246 /* used by the recovery daemon when distributing ip addresses
247 across the nodes. it needs to know which public ip's can be handled
250 struct ctdb_all_public_ips *known_public_ips;
251 struct ctdb_all_public_ips *available_public_ips;
252 /* used by the recovery dameon to track when a node should be banned */
253 struct ctdb_banning_state *ban_state;
257 transport specific methods
259 struct ctdb_methods {
260 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
261 int (*start)(struct ctdb_context *); /* start the transport */
262 int (*add_node)(struct ctdb_node *); /* setup a new node */
263 int (*connect_node)(struct ctdb_node *); /* connect to node */
264 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
265 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
266 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
267 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
271 transport calls up to the ctdb layer
273 struct ctdb_upcalls {
274 /* recv_pkt is called when a packet comes in */
275 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
277 /* node_dead is called when an attempt to send to a node fails */
278 void (*node_dead)(struct ctdb_node *);
280 /* node_connected is called when a connection to a node is established */
281 void (*node_connected)(struct ctdb_node *);
284 /* list of message handlers - needs to be changed to a more efficient data
285 structure so we can find a message handler given a srvid quickly */
286 struct ctdb_message_list {
287 struct ctdb_context *ctdb;
288 struct ctdb_message_list *next, *prev;
290 ctdb_message_fn_t message_handler;
291 void *message_private;
294 /* additional data required for the daemon mode */
295 struct ctdb_daemon_data {
298 struct ctdb_queue *queue;
302 ctdb status information
304 struct ctdb_statistics {
305 uint32_t num_clients;
308 uint32_t client_packets_sent;
309 uint32_t client_packets_recv;
310 uint32_t node_packets_sent;
311 uint32_t node_packets_recv;
312 uint32_t keepalive_packets_sent;
313 uint32_t keepalive_packets_recv;
317 uint32_t req_dmaster;
318 uint32_t reply_dmaster;
319 uint32_t reply_error;
320 uint32_t req_message;
321 uint32_t req_control;
322 uint32_t reply_control;
326 uint32_t req_message;
327 uint32_t req_control;
338 uint32_t total_calls;
339 uint32_t pending_calls;
340 uint32_t lockwait_calls;
341 uint32_t pending_lockwait_calls;
342 uint32_t childwrite_calls;
343 uint32_t pending_childwrite_calls;
344 uint32_t memory_used;
345 uint32_t __last_counter; /* hack for control_statistics_all */
346 uint32_t max_hop_count;
347 double max_call_latency;
348 double max_lockwait_latency;
349 double max_childwrite_latency;
353 #define INVALID_GENERATION 1
354 /* table that contains the mapping between a hash value and lmaster
356 struct ctdb_vnn_map {
363 a wire representation of the vnn map
365 struct ctdb_vnn_map_wire {
371 /* a structure that contains the elements required for the write record
374 struct ctdb_write_record {
378 unsigned char blob[1];
381 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
383 #define CTDB_MONITORING_ACTIVE 0
384 #define CTDB_MONITORING_DISABLED 1
386 /* The different capabilities of the ctdb daemon. */
387 #define CTDB_CAP_RECMASTER 0x00000001
388 #define CTDB_CAP_LMASTER 0x00000002
389 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
390 #define CTDB_CAP_LVS 0x00000004
391 /* This capability is set if NATGW is enabled */
392 #define CTDB_CAP_NATGW 0x00000008
394 #define NUM_DB_PRIORITIES 3
395 /* main state of the ctdb daemon */
396 struct ctdb_context {
397 struct event_context *ev;
398 struct timeval ctdbd_start_time;
399 struct timeval last_recovery_started;
400 struct timeval last_recovery_finished;
401 uint32_t recovery_mode;
402 TALLOC_CTX *tickle_update_context;
403 TALLOC_CTX *keepalive_ctx;
404 struct ctdb_tunable tunable;
405 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
406 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
407 bool freeze_transaction_started;
408 uint32_t freeze_transaction_id;
409 struct ctdb_address address;
411 const char *db_directory;
412 const char *db_directory_persistent;
413 const char *db_directory_state;
414 struct tdb_wrap *db_persistent_health;
415 uint32_t db_persistent_startup_generation;
416 uint64_t db_persistent_check_errors;
417 uint64_t max_persistent_check_errors;
418 const char *transport;
419 char *recovery_lock_file;
420 int recovery_lock_fd;
421 uint32_t pnn; /* our own pnn */
423 uint32_t num_connected;
425 uint32_t capabilities;
426 struct idr_context *idr;
428 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
429 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
430 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
431 struct ctdb_iface *ifaces; /* list of local interfaces */
433 const struct ctdb_methods *methods; /* transport methods */
434 const struct ctdb_upcalls *upcalls; /* transport upcalls */
435 void *private_data; /* private to transport */
436 struct ctdb_db_context *db_list;
437 struct ctdb_message_list *message_list;
438 struct ctdb_daemon_data daemon;
439 struct ctdb_statistics statistics;
440 struct ctdb_vnn_map *vnn_map;
441 uint32_t num_clients;
442 uint32_t recovery_master;
443 struct ctdb_call_state *pending_calls;
444 struct ctdb_client_ip *client_ip_list;
445 bool do_checkpublicip;
446 struct _trbt_tree_t *server_ids;
447 const char *event_script_dir;
448 const char *notification_script;
449 const char *default_public_interface;
455 struct ctdb_monitor_state *monitor;
456 struct ctdb_log_state *log;
457 int start_as_disabled;
458 int start_as_stopped;
460 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
461 uint32_t *recd_ping_count;
462 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
464 TALLOC_CTX *event_script_ctx;
466 struct ctdb_event_script_state *current_monitor;
467 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
469 TALLOC_CTX *banning_ctx;
471 struct ctdb_vacuum_child_context *vacuumers;
473 /* mapping from pid to ctdb_client * */
474 struct ctdb_client_pid_list *client_pids;
477 struct ctdb_db_context {
478 struct ctdb_db_context *next, *prev;
479 struct ctdb_context *ctdb;
485 struct tdb_wrap *ltdb;
486 struct ctdb_registered_call *calls; /* list of registered calls */
488 struct timed_event *seqnum_update;
489 struct ctdb_traverse_local_handle *traverse;
490 bool transaction_active;
491 struct ctdb_vacuum_handle *vacuum_handle;
492 char *unhealthy_reason;
493 struct ctdb_persistent_state *persistent_state;
494 struct _trbt_tree_t *delete_queue;
495 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
497 struct ctdb_ltdb_header *header,
503 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
504 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
505 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
506 return -1; }} while (0)
508 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
509 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
510 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
513 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
514 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
515 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
516 return NULL; }} while (0)
518 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
519 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
520 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
524 the extended header for records in the ltdb
526 struct ctdb_ltdb_header {
530 #define CTDB_REC_FLAG_DEFAULT 0x00000000
531 #define CTDB_REC_FLAG_MIGRATED_WITH_DATA 0x00010000
532 #define CTDB_REC_FLAG_VACUUM_MIGRATED 0x00020000
533 #define CTDB_REC_FLAG_AUTOMATIC 0x00040000
537 enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
538 CTDB_CONTROL_STATISTICS = 1,
540 CTDB_CONTROL_PING = 3,
541 CTDB_CONTROL_GETDBPATH = 4,
542 CTDB_CONTROL_GETVNNMAP = 5,
543 CTDB_CONTROL_SETVNNMAP = 6,
544 CTDB_CONTROL_GET_DEBUG = 7,
545 CTDB_CONTROL_SET_DEBUG = 8,
546 CTDB_CONTROL_GET_DBMAP = 9,
547 CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
548 CTDB_CONTROL_SET_DMASTER = 11, /* obsolete */
550 CTDB_CONTROL_PULL_DB = 13,
551 CTDB_CONTROL_PUSH_DB = 14,
552 CTDB_CONTROL_GET_RECMODE = 15,
553 CTDB_CONTROL_SET_RECMODE = 16,
554 CTDB_CONTROL_STATISTICS_RESET = 17,
555 CTDB_CONTROL_DB_ATTACH = 18,
556 CTDB_CONTROL_SET_CALL = 19,
557 CTDB_CONTROL_TRAVERSE_START = 20,
558 CTDB_CONTROL_TRAVERSE_ALL = 21,
559 CTDB_CONTROL_TRAVERSE_DATA = 22,
560 CTDB_CONTROL_REGISTER_SRVID = 23,
561 CTDB_CONTROL_DEREGISTER_SRVID = 24,
562 CTDB_CONTROL_GET_DBNAME = 25,
563 CTDB_CONTROL_ENABLE_SEQNUM = 26,
564 CTDB_CONTROL_UPDATE_SEQNUM = 27,
566 CTDB_CONTROL_DUMP_MEMORY = 29,
567 CTDB_CONTROL_GET_PID = 30,
568 CTDB_CONTROL_GET_RECMASTER = 31,
569 CTDB_CONTROL_SET_RECMASTER = 32,
570 CTDB_CONTROL_FREEZE = 33,
571 CTDB_CONTROL_THAW = 34,
572 CTDB_CONTROL_GET_PNN = 35,
573 CTDB_CONTROL_SHUTDOWN = 36,
574 CTDB_CONTROL_GET_MONMODE = 37,
579 CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */
580 CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */
581 CTDB_CONTROL_TCP_CLIENT = 44,
582 CTDB_CONTROL_TCP_ADD = 45,
583 CTDB_CONTROL_TCP_REMOVE = 46,
584 CTDB_CONTROL_STARTUP = 47,
585 CTDB_CONTROL_SET_TUNABLE = 48,
586 CTDB_CONTROL_GET_TUNABLE = 49,
587 CTDB_CONTROL_LIST_TUNABLES = 50,
588 CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */
589 CTDB_CONTROL_MODIFY_FLAGS = 52,
590 CTDB_CONTROL_GET_ALL_TUNABLES = 53,
591 CTDB_CONTROL_KILL_TCP = 54,
592 CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55,
593 CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56,
594 CTDB_CONTROL_REGISTER_SERVER_ID = 57,
595 CTDB_CONTROL_UNREGISTER_SERVER_ID = 58,
596 CTDB_CONTROL_CHECK_SERVER_ID = 59,
597 CTDB_CONTROL_GET_SERVER_ID_LIST = 60,
598 CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
599 CTDB_CONTROL_PERSISTENT_STORE = 62,
600 CTDB_CONTROL_UPDATE_RECORD = 63,
601 CTDB_CONTROL_SEND_GRATIOUS_ARP = 64,
602 CTDB_CONTROL_TRANSACTION_START = 65,
603 CTDB_CONTROL_TRANSACTION_COMMIT = 66,
604 CTDB_CONTROL_WIPE_DATABASE = 67,
606 CTDB_CONTROL_UPTIME = 69,
607 CTDB_CONTROL_START_RECOVERY = 70,
608 CTDB_CONTROL_END_RECOVERY = 71,
609 CTDB_CONTROL_RELOAD_NODES_FILE = 72,
611 CTDB_CONTROL_TRY_DELETE_RECORDS = 74,
612 CTDB_CONTROL_ENABLE_MONITOR = 75,
613 CTDB_CONTROL_DISABLE_MONITOR = 76,
614 CTDB_CONTROL_ADD_PUBLIC_IP = 77,
615 CTDB_CONTROL_DEL_PUBLIC_IP = 78,
616 CTDB_CONTROL_RUN_EVENTSCRIPTS = 79,
617 CTDB_CONTROL_GET_CAPABILITIES = 80,
618 CTDB_CONTROL_START_PERSISTENT_UPDATE = 81,
619 CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82,
620 CTDB_CONTROL_TRANS2_COMMIT = 83,
621 CTDB_CONTROL_TRANS2_FINISHED = 84,
622 CTDB_CONTROL_TRANS2_ERROR = 85,
623 CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86,
624 CTDB_CONTROL_RECD_PING = 87,
625 CTDB_CONTROL_RELEASE_IP = 88,
626 CTDB_CONTROL_TAKEOVER_IP = 89,
627 CTDB_CONTROL_GET_PUBLIC_IPS = 90,
628 CTDB_CONTROL_GET_NODEMAP = 91,
629 CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96,
630 CTDB_CONTROL_TRAVERSE_KILL = 97,
631 CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98,
632 CTDB_CONTROL_GET_RECLOCK_FILE = 99,
633 CTDB_CONTROL_SET_RECLOCK_FILE = 100,
634 CTDB_CONTROL_STOP_NODE = 101,
635 CTDB_CONTROL_CONTINUE_NODE = 102,
636 CTDB_CONTROL_SET_NATGWSTATE = 103,
637 CTDB_CONTROL_SET_LMASTERROLE = 104,
638 CTDB_CONTROL_SET_RECMASTERROLE = 105,
639 CTDB_CONTROL_ENABLE_SCRIPT = 107,
640 CTDB_CONTROL_DISABLE_SCRIPT = 108,
641 CTDB_CONTROL_SET_BAN_STATE = 109,
642 CTDB_CONTROL_GET_BAN_STATE = 110,
643 CTDB_CONTROL_SET_DB_PRIORITY = 111,
644 CTDB_CONTROL_GET_DB_PRIORITY = 112,
645 CTDB_CONTROL_TRANSACTION_CANCEL = 113,
646 CTDB_CONTROL_REGISTER_NOTIFY = 114,
647 CTDB_CONTROL_DEREGISTER_NOTIFY = 115,
648 CTDB_CONTROL_TRANS2_ACTIVE = 116,
649 CTDB_CONTROL_GET_LOG = 117,
650 CTDB_CONTROL_CLEAR_LOG = 118,
651 CTDB_CONTROL_TRANS3_COMMIT = 119,
652 CTDB_CONTROL_GET_DB_SEQNUM = 120,
653 CTDB_CONTROL_DB_SET_HEALTHY = 121,
654 CTDB_CONTROL_DB_GET_HEALTH = 122,
655 CTDB_CONTROL_GET_PUBLIC_IP_INFO = 123,
656 CTDB_CONTROL_GET_IFACES = 124,
657 CTDB_CONTROL_SET_IFACE_LINK_STATE = 125,
658 /* 126 & 127: skipped (master...) */
659 CTDB_CONTROL_SCHEDULE_FOR_DELETION = 128,
660 /* 129 & 130: skipped (master) */
661 CTDB_CONTROL_TRAVERSE_START_EXT = 131,
665 structure passed in set_call control
667 struct ctdb_control_set_call {
674 struct for kill_tcp control
676 struct ctdb_control_killtcp {
677 ctdb_sock_addr src_addr;
678 ctdb_sock_addr dst_addr;
682 struct holding a ctdb_sock_addr and an interface name,
683 used to add/remove public addresses
685 struct ctdb_control_ip_iface {
693 struct holding a ctdb_sock_addr and an interface name,
694 used for send_gratious_arp
696 struct ctdb_control_gratious_arp {
704 struct for tcp_add and tcp_remove controls
706 struct ctdb_control_tcp_vnn {
712 persistent store control - update this record on all other nodes
714 struct ctdb_control_persistent_store {
721 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
723 struct ctdb_node_flag_change {
730 struct for admin setting a ban
732 struct ctdb_ban_info {
737 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
739 #define CTDB_LMASTER_ANY 0xffffffff
742 state of a in-progress ctdb call
744 struct ctdb_call_state {
745 struct ctdb_call_state *next, *prev;
746 enum call_state state;
748 struct ctdb_req_call *c;
749 struct ctdb_db_context *ctdb_db;
751 struct ctdb_call *call;
754 void (*fn)(struct ctdb_call_state *);
760 /* used for fetch_lock */
761 struct ctdb_fetch_handle {
762 struct ctdb_db_context *ctdb_db;
765 struct ctdb_ltdb_header header;
771 enum ctdb_operation {
774 CTDB_REQ_DMASTER = 2,
775 CTDB_REPLY_DMASTER = 3,
776 CTDB_REPLY_ERROR = 4,
777 CTDB_REQ_MESSAGE = 5,
779 CTDB_REQ_CONTROL = 7,
780 CTDB_REPLY_CONTROL = 8,
781 CTDB_REQ_KEEPALIVE = 9,
784 #define CTDB_MAGIC 0x43544442 /* CTDB */
785 #define CTDB_VERSION 1
790 struct ctdb_req_header {
793 uint32_t ctdb_version;
801 struct ctdb_req_call {
802 struct ctdb_req_header hdr;
808 uint32_t calldatalen;
809 uint8_t data[1]; /* key[] followed by calldata[] */
812 struct ctdb_reply_call {
813 struct ctdb_req_header hdr;
819 struct ctdb_reply_error {
820 struct ctdb_req_header hdr;
826 struct ctdb_req_dmaster {
827 struct ctdb_req_header hdr;
836 struct ctdb_reply_dmaster {
837 struct ctdb_req_header hdr;
845 struct ctdb_req_message {
846 struct ctdb_req_header hdr;
852 struct ctdb_req_getdbpath {
853 struct ctdb_req_header hdr;
857 struct ctdb_reply_getdbpath {
858 struct ctdb_req_header hdr;
863 struct ctdb_req_control {
864 struct ctdb_req_header hdr;
868 #define CTDB_CTRL_FLAG_NOREPLY 1
869 #define CTDB_CTRL_FLAG_OPCODE_SPECIFIC 0xFFFF0000
875 struct ctdb_reply_control {
876 struct ctdb_req_header hdr;
883 struct ctdb_req_keepalive {
884 struct ctdb_req_header hdr;
888 /* types of failures possible from TRANS2_COMMIT */
889 enum ctdb_trans2_commit_error {
890 CTDB_TRANS2_COMMIT_SUCCESS=0, /* all nodes committed successfully */
891 CTDB_TRANS2_COMMIT_TIMEOUT=1, /* at least one node timed out */
892 CTDB_TRANS2_COMMIT_ALLFAIL=2, /* all nodes failed the commit */
893 CTDB_TRANS2_COMMIT_SOMEFAIL=3 /* some nodes failed the commit, some allowed it */
896 /* internal prototypes */
897 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
898 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
899 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
900 int ctdb_parse_address(struct ctdb_context *ctdb,
901 TALLOC_CTX *mem_ctx, const char *str,
902 struct ctdb_address *address);
903 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
904 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
905 uint32_t ctdb_hash(const TDB_DATA *key);
906 uint32_t ctdb_hash_string(const char *str);
907 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
908 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
909 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
910 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
911 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
912 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
914 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
915 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
916 TDB_DATA key, struct ctdb_ltdb_header *header,
917 TALLOC_CTX *mem_ctx, TDB_DATA *data);
918 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
919 struct ctdb_ltdb_header *header, TDB_DATA data);
920 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
921 struct ctdb_req_control *c,
923 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
924 struct ctdb_req_control *c,
926 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
927 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
928 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
929 TDB_DATA key, struct ctdb_req_header *hdr,
930 void (*recv_pkt)(void *, struct ctdb_req_header *),
931 void *recv_context, bool ignore_generation);
932 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
933 TDB_DATA key, struct ctdb_ltdb_header *header,
934 struct ctdb_req_header *hdr, TDB_DATA *data,
935 void (*recv_pkt)(void *, struct ctdb_req_header *),
936 void *recv_context, bool ignore_generation);
937 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
939 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
940 struct ctdb_call *call,
941 struct ctdb_ltdb_header *header,
945 int ctdbd_start(struct ctdb_context *ctdb);
946 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
947 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
950 queue a packet for sending
952 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
955 setup the fd used by the queue
957 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
960 setup a packet queue on a socket
962 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
963 TALLOC_CTX *mem_ctx, int fd, int alignment,
965 ctdb_queue_cb_fn_t callback,
969 allocate a packet for use in client<->daemon communication
971 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
973 enum ctdb_operation operation,
974 size_t length, size_t slength,
976 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
977 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
979 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
981 enum ctdb_operation operation,
982 size_t length, size_t slength,
984 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
985 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
987 int ctdb_queue_length(struct ctdb_queue *queue);
990 lock a record in the ltdb, given a key
992 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
995 unlock a record in the ltdb, given a key
997 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
1001 make a ctdb call to the local daemon - async send. Called from client context.
1003 This constructs a ctdb_call request and queues it for processing.
1004 This call never blocks.
1006 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
1007 struct ctdb_call *call);
1010 make a recv call to the local ctdb daemon - called from client context
1012 This is called when the program wants to wait for a ctdb_call to complete and get the
1013 results. This call will block unless the call has already completed.
1015 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
1017 int ctdb_daemon_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid,
1018 ctdb_message_fn_t handler,
1019 void *private_data);
1021 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
1022 uint64_t srvid, TDB_DATA data);
1027 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
1028 uint64_t srvid, TDB_DATA data);
1031 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
1033 void (*callback)(void *), void *private_data);
1035 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
1036 struct ctdb_call *call);
1038 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
1040 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
1041 struct ctdb_call *call,
1042 struct ctdb_ltdb_header *header);
1044 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
1045 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
1048 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
1050 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
1052 int ctdb_socket_connect(struct ctdb_context *ctdb);
1054 void ctdb_latency(struct ctdb_db_context *ctdb_db, const char *name, double *latency, struct timeval t);
1055 void ctdb_reclock_latency(struct ctdb_context *ctdb, const char *name, double *latency, double l);
1057 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
1058 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
1059 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
1061 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1062 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1064 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
1065 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
1067 ctdb_control_callback_fn_t callback,
1068 void *private_data);
1070 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
1071 TDB_DATA *outdata, uint64_t tdb_flags, bool persistent);
1073 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
1074 ctdb_fn_t fn, int id);
1076 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
1077 uint32_t opcode, uint32_t flags, TDB_DATA data,
1078 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
1079 struct timeval *timeout, char **errormsg);
1080 int ctdb_control_recv(struct ctdb_context *ctdb,
1081 struct ctdb_client_control_state *state,
1082 TALLOC_CTX *mem_ctx,
1083 TDB_DATA *outdata, int32_t *status, char **errormsg);
1085 struct ctdb_client_control_state *
1086 ctdb_control_send(struct ctdb_context *ctdb,
1087 uint32_t destnode, uint64_t srvid,
1088 uint32_t opcode, uint32_t flags, TDB_DATA data,
1089 TALLOC_CTX *mem_ctx,
1090 struct timeval *timeout,
1096 #define CHECK_CONTROL_DATA_SIZE(size) do { \
1097 if (indata.dsize != size) { \
1098 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
1099 opcode, (unsigned)indata.dsize, (unsigned)size)); \
1104 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
1105 if (indata.dsize < size) { \
1106 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
1107 opcode, (unsigned)indata.dsize, (unsigned)size)); \
1112 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1113 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1114 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1115 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1116 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1117 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1120 struct ctdb_traverse_start {
1126 struct ctdb_traverse_start_ext {
1130 bool withemptyrecords;
1134 structure used to pass record data between the child and parent
1136 struct ctdb_rec_data {
1145 /* structure used for pulldb control */
1146 struct ctdb_control_pulldb {
1151 /* structure used for sending lists of records */
1152 struct ctdb_marshall_buffer {
1158 /* set dmaster control structure */
1159 struct ctdb_control_set_dmaster {
1165 structure for setting a tunable
1167 struct ctdb_control_set_tunable {
1174 structure for getting a tunable
1176 struct ctdb_control_get_tunable {
1182 structure for listing tunables
1184 struct ctdb_control_list_tunable {
1186 /* returns a : separated list of tunable names */
1191 /* table that contains a list of all nodes a ctdb knows about and their
1194 struct ctdb_node_and_flags {
1197 ctdb_sock_addr addr;
1200 struct ctdb_node_map {
1202 struct ctdb_node_and_flags nodes[1];
1205 struct ctdb_node_and_flagsv4 {
1208 struct sockaddr_in sin;
1211 struct ctdb_node_mapv4 {
1213 struct ctdb_node_and_flagsv4 nodes[1];
1216 struct ctdb_control_wipe_database {
1218 uint32_t transaction_id;
1222 state of a in-progress ctdb call in client
1224 struct ctdb_client_call_state {
1225 enum call_state state;
1227 struct ctdb_db_context *ctdb_db;
1228 struct ctdb_call *call;
1230 void (*fn)(struct ctdb_client_call_state *);
1236 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1240 uint32_t client_id);
1241 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1242 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1243 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1244 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1245 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1246 TDB_DATA *outdata, uint32_t srcnode);
1248 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1250 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1251 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1252 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1254 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1255 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1257 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1258 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1260 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1262 struct ctdb_ltdb_header *header,
1263 TDB_DATA *key, TDB_DATA *data);
1265 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1266 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1268 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1269 struct ctdb_req_control *c,
1270 TDB_DATA indata, bool *async_reply,
1271 const char **errormsg);
1272 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1273 TDB_DATA *outdata, int32_t status, const char *errormsg);
1275 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1276 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1278 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1279 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1281 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1283 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1284 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1285 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1286 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1287 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1288 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1289 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1290 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1291 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1294 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1295 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1296 void ctdb_node_dead(struct ctdb_node *node);
1297 void ctdb_node_connected(struct ctdb_node *node);
1298 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1299 void ctdb_high_priority(struct ctdb_context *ctdb);
1300 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1301 struct ctdb_req_control *c,
1304 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1305 struct ctdb_req_control *c,
1308 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1309 struct ctdb_req_control *c,
1312 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1313 struct ctdb_req_control *c,
1316 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1317 struct ctdb_req_control *c,
1319 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1320 struct ctdb_req_control *c,
1323 struct ctdb_public_ipv4 {
1325 struct sockaddr_in sin;
1328 struct ctdb_public_ip {
1330 ctdb_sock_addr addr;
1332 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1333 uint32_t destnode, struct ctdb_public_ip *ip);
1334 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1335 uint32_t destnode, struct ctdb_public_ip *ip);
1337 struct ctdb_all_public_ipsv4 {
1339 struct ctdb_public_ipv4 ips[1];
1342 struct ctdb_all_public_ips {
1344 struct ctdb_public_ip ips[1];
1346 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1347 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1348 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1349 struct timeval timeout,
1351 TALLOC_CTX *mem_ctx,
1352 struct ctdb_all_public_ips **ips);
1353 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1354 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1355 struct timeval timeout, uint32_t destnode,
1356 TALLOC_CTX *mem_ctx,
1358 struct ctdb_all_public_ips **ips);
1359 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1360 struct timeval timeout, uint32_t destnode,
1361 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1364 #define CTDB_IFACE_SIZE IFNAMSIZ
1366 #define CTDB_IFACE_SIZE 16
1369 struct ctdb_control_iface_info {
1370 char name[CTDB_IFACE_SIZE+2];
1371 uint16_t link_state;
1372 uint32_t references;
1375 struct ctdb_control_public_ip_info {
1376 struct ctdb_public_ip ip;
1377 uint32_t active_idx;
1379 struct ctdb_control_iface_info ifaces[1];
1382 struct ctdb_control_get_ifaces {
1384 struct ctdb_control_iface_info ifaces[1];
1387 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1388 struct ctdb_req_control *c,
1391 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1392 struct ctdb_req_control *c,
1394 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1395 struct ctdb_req_control *c,
1397 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1398 struct timeval timeout, uint32_t destnode,
1399 TALLOC_CTX *mem_ctx,
1400 const ctdb_sock_addr *addr,
1401 struct ctdb_control_public_ip_info **info);
1402 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1403 struct timeval timeout, uint32_t destnode,
1404 TALLOC_CTX *mem_ctx,
1405 struct ctdb_control_get_ifaces **ifaces);
1406 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1407 struct timeval timeout, uint32_t destnode,
1408 TALLOC_CTX *mem_ctx,
1409 const struct ctdb_control_iface_info *info);
1411 /* from takeover/system.c */
1412 uint32_t uint16_checksum(uint16_t *data, size_t n);
1413 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1414 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1415 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1416 const ctdb_sock_addr *src,
1417 uint32_t seq, uint32_t ack, int rst);
1419 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1420 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1423 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1424 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1425 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1426 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1428 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1430 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata);
1431 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1432 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1433 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1434 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1435 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1436 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1438 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1439 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1440 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1441 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1442 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1443 TALLOC_CTX *mem_ctx,
1444 void (*callback)(struct ctdb_context *, int, void *),
1447 enum ctdb_eventscript_call call,
1448 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1449 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1451 void set_nonblocking(int fd);
1452 void set_close_on_exec(int fd);
1454 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1456 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1458 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1460 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1461 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1462 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1463 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1464 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1466 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1468 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1470 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1471 struct timeval timeout,
1473 struct ctdb_tunable *tunables);
1475 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1477 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1478 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1479 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1480 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1483 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1484 int ctdb_sys_close_capture_socket(void *private_data);
1485 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);
1487 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1488 struct timeval timeout,
1490 struct ctdb_control_killtcp *killtcp);
1492 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1493 struct timeval timeout,
1495 struct ctdb_control_ip_iface *pub);
1497 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1498 struct timeval timeout,
1500 struct ctdb_control_ip_iface *pub);
1502 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1503 struct timeval timeout,
1505 ctdb_sock_addr *addr,
1506 const char *ifname);
1508 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1509 struct timeval timeout,
1511 TALLOC_CTX *mem_ctx,
1512 ctdb_sock_addr *addr,
1513 struct ctdb_control_tcp_tickle_list **list);
1516 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1519 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1521 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1523 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1525 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1528 int ctdb_attach_databases(struct ctdb_context *ctdb);
1530 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1531 struct ctdb_req_control *c,
1532 TDB_DATA recdata, bool *async_reply);
1533 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1534 struct ctdb_req_control *c, TDB_DATA recdata,
1536 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1537 struct ctdb_req_control *c,
1538 TDB_DATA recdata, bool *async_reply);
1540 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1541 struct ctdb_req_control *c,
1542 TDB_DATA recdata, bool *async_reply);
1544 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1546 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1547 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1548 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1549 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1550 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1551 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1556 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1557 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1559 void ctdb_block_signal(int signum);
1560 void ctdb_unblock_signal(int signum);
1561 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1562 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1563 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1565 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1567 struct client_async_data {
1568 enum ctdb_controls opcode;
1569 bool dont_log_errors;
1571 uint32_t fail_count;
1572 client_async_callback callback;
1573 client_async_callback fail_callback;
1574 void *callback_data;
1576 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1577 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1578 int ctdb_client_async_control(struct ctdb_context *ctdb,
1579 enum ctdb_controls opcode,
1582 struct timeval timeout,
1583 bool dont_log_errors,
1585 client_async_callback client_callback,
1586 client_async_callback fail_callback,
1587 void *callback_data);
1589 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1591 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1593 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1594 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1596 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1597 struct ctdb_req_control *c);
1598 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1599 struct ctdb_req_control *c);
1600 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1601 struct ctdb_req_control *c,
1604 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1605 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1606 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1608 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1609 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1611 extern int script_log_level;
1613 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1617 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1618 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1620 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1621 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1623 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1624 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1626 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1627 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1629 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1630 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1631 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1632 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1633 void ctdb_ban_self(struct ctdb_context *ctdb);
1635 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1637 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1639 int start_syslog_daemon(struct ctdb_context *ctdb);
1641 /* Where to send the log messages back to */
1642 struct ctdb_get_log_addr {
1648 extern int log_ringbuf_size;
1650 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1651 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1654 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1655 struct ctdb_context *ctdb,
1656 void (*logfn)(const char *, uint16_t, void *),
1657 void *logfn_private, pid_t *pid);
1659 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1660 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1662 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1666 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1667 struct ctdb_db_context *ctdb_db);
1668 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1669 struct ctdb_db_context *ctdb_db,
1670 const char *reason,/* NULL means healthy */
1671 int num_healthy_nodes);
1672 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1674 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1676 void ctdb_fault_setup(void);
1680 * structure to pass to a schedule_for_deletion_control
1682 struct ctdb_control_schedule_for_deletion {
1684 struct ctdb_ltdb_header hdr;
1686 uint8_t key[1]; /* key[] */
1689 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1693 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1694 const struct ctdb_ltdb_header *hdr,
1697 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1698 const struct ctdb_ltdb_header *hdr,
1699 const TDB_DATA key);
1701 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);