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;
99 uint32_t recover_timeout;
100 uint32_t recover_interval;
101 uint32_t election_timeout;
102 uint32_t takeover_timeout;
103 uint32_t monitor_interval;
104 uint32_t tickle_update_interval;
105 uint32_t script_timeout;
106 uint32_t script_ban_count; /* ban after this many consec timeouts*/
107 uint32_t script_unhealthy_on_timeout; /* don't ban on timeout; set node unhealthy */
108 uint32_t recovery_grace_period;
109 uint32_t recovery_ban_period;
110 uint32_t database_hash_size;
111 uint32_t database_max_dead;
112 uint32_t rerecovery_timeout;
113 uint32_t enable_bans;
114 uint32_t deterministic_public_ips;
115 uint32_t disable_when_unhealthy;
116 uint32_t reclock_ping_period;
117 uint32_t no_ip_failback;
118 uint32_t verbose_memory_names;
119 uint32_t recd_ping_timeout;
120 uint32_t recd_ping_failcount;
121 uint32_t log_latency_ms;
122 uint32_t reclock_latency_ms;
123 uint32_t recovery_drop_all_ips;
124 uint32_t verify_recovery_lock;
125 uint32_t vacuum_default_interval;
126 uint32_t vacuum_max_run_time;
127 uint32_t repack_limit;
128 uint32_t vacuum_limit;
129 uint32_t vacuum_min_interval;
130 uint32_t vacuum_max_interval;
131 uint32_t max_queue_depth_drop_msg;
132 uint32_t use_status_events_for_monitoring;
136 an installed ctdb remote call
138 struct ctdb_registered_call {
139 struct ctdb_registered_call *next, *prev;
145 this address structure might need to be generalised later for some
148 struct ctdb_address {
154 check that a pnn is valid
156 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
159 /* called from the queue code when a packet comes in. Called with data==NULL
161 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
164 /* used for callbacks in ctdb_control requests */
165 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
166 int32_t status, TDB_DATA data,
167 const char *errormsg,
170 structure describing a connected client in the daemon
173 struct ctdb_context *ctdb;
175 struct ctdb_queue *queue;
178 struct ctdb_tcp_list *tcp_list;
180 uint32_t num_persistent_updates;
181 struct ctdb_client_notify_list *notify;
185 /* state associated with a public ip address */
187 struct ctdb_vnn *prev, *next;
190 ctdb_sock_addr public_address;
191 uint8_t public_netmask_bits;
193 /* the node number that is serving this public address, if any.
194 If no node serves this ip it is set to -1 */
197 /* List of clients to tickle for this public address */
198 struct ctdb_tcp_array *tcp_array;
200 /* whether we need to update the other nodes with changes to our list
201 of connected clients */
202 bool tcp_update_needed;
204 /* a context to hang sending gratious arp events off */
205 TALLOC_CTX *takeover_ctx;
207 struct ctdb_kill_tcp *killtcp;
211 state associated with one node
214 struct ctdb_context *ctdb;
215 struct ctdb_address address;
216 const char *name; /* for debug messages */
217 void *private_data; /* private to transport */
219 #define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
220 #define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
221 #define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
222 #define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
223 #define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
224 #define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
225 #define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
226 #define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
229 /* used by the dead node monitoring */
234 /* used to track node capabilities, is only valid/tracked inside the
237 uint32_t capabilities;
239 /* a list of controls pending to this node, so we can time them out quickly
240 if the node becomes disconnected */
241 struct daemon_control_state *pending_controls;
243 /* used by the recovery daemon when distributing ip addresses
244 across the nodes. it needs to know which public ip's can be handled
247 struct ctdb_all_public_ips *public_ips;
248 /* used by the recovery dameon to track when a node should be banned */
249 struct ctdb_banning_state *ban_state;
253 transport specific methods
255 struct ctdb_methods {
256 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
257 int (*start)(struct ctdb_context *); /* start the transport */
258 int (*add_node)(struct ctdb_node *); /* setup a new node */
259 int (*connect_node)(struct ctdb_node *); /* connect to node */
260 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
261 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
262 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
263 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
267 transport calls up to the ctdb layer
269 struct ctdb_upcalls {
270 /* recv_pkt is called when a packet comes in */
271 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
273 /* node_dead is called when an attempt to send to a node fails */
274 void (*node_dead)(struct ctdb_node *);
276 /* node_connected is called when a connection to a node is established */
277 void (*node_connected)(struct ctdb_node *);
280 /* list of message handlers - needs to be changed to a more efficient data
281 structure so we can find a message handler given a srvid quickly */
282 struct ctdb_message_list {
283 struct ctdb_context *ctdb;
284 struct ctdb_message_list *next, *prev;
286 ctdb_message_fn_t message_handler;
287 void *message_private;
290 /* additional data required for the daemon mode */
291 struct ctdb_daemon_data {
294 struct ctdb_queue *queue;
298 ctdb status information
300 struct ctdb_statistics {
301 uint32_t num_clients;
304 uint32_t client_packets_sent;
305 uint32_t client_packets_recv;
306 uint32_t node_packets_sent;
307 uint32_t node_packets_recv;
308 uint32_t keepalive_packets_sent;
309 uint32_t keepalive_packets_recv;
313 uint32_t req_dmaster;
314 uint32_t reply_dmaster;
315 uint32_t reply_error;
316 uint32_t req_message;
317 uint32_t req_control;
318 uint32_t reply_control;
322 uint32_t req_message;
323 uint32_t req_control;
334 uint32_t total_calls;
335 uint32_t pending_calls;
336 uint32_t lockwait_calls;
337 uint32_t pending_lockwait_calls;
338 uint32_t childwrite_calls;
339 uint32_t pending_childwrite_calls;
340 uint32_t memory_used;
341 uint32_t __last_counter; /* hack for control_statistics_all */
342 uint32_t max_hop_count;
343 double max_call_latency;
344 double max_lockwait_latency;
345 double max_childwrite_latency;
349 #define INVALID_GENERATION 1
350 /* table that contains the mapping between a hash value and lmaster
352 struct ctdb_vnn_map {
359 a wire representation of the vnn map
361 struct ctdb_vnn_map_wire {
367 /* a structure that contains the elements required for the write record
370 struct ctdb_write_record {
374 unsigned char blob[1];
377 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
379 #define CTDB_MONITORING_ACTIVE 0
380 #define CTDB_MONITORING_DISABLED 1
382 /* The different capabilities of the ctdb daemon. */
383 #define CTDB_CAP_RECMASTER 0x00000001
384 #define CTDB_CAP_LMASTER 0x00000002
385 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
386 #define CTDB_CAP_LVS 0x00000004
387 /* This capability is set if NATGW is enabled */
388 #define CTDB_CAP_NATGW 0x00000008
390 #define NUM_DB_PRIORITIES 3
391 /* main state of the ctdb daemon */
392 struct ctdb_context {
393 struct event_context *ev;
394 struct timeval ctdbd_start_time;
395 struct timeval last_recovery_started;
396 struct timeval last_recovery_finished;
397 uint32_t recovery_mode;
398 TALLOC_CTX *tickle_update_context;
399 TALLOC_CTX *keepalive_ctx;
400 struct ctdb_tunable tunable;
401 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
402 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
403 bool freeze_transaction_started;
404 uint32_t freeze_transaction_id;
405 struct ctdb_address address;
407 const char *db_directory;
408 const char *db_directory_persistent;
409 const char *transport;
410 char *recovery_lock_file;
411 int recovery_lock_fd;
412 uint32_t pnn; /* our own pnn */
414 uint32_t num_connected;
416 uint32_t capabilities;
417 struct idr_context *idr;
419 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
420 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
421 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
423 const struct ctdb_methods *methods; /* transport methods */
424 const struct ctdb_upcalls *upcalls; /* transport upcalls */
425 void *private_data; /* private to transport */
426 struct ctdb_db_context *db_list;
427 struct ctdb_message_list *message_list;
428 struct ctdb_daemon_data daemon;
429 struct ctdb_statistics statistics;
430 struct ctdb_vnn_map *vnn_map;
431 uint32_t num_clients;
432 uint32_t recovery_master;
433 struct ctdb_call_state *pending_calls;
434 struct ctdb_client_ip *client_ip_list;
436 bool do_checkpublicip;
437 void *saved_scheduler_param;
438 struct _trbt_tree_t *server_ids;
439 const char *event_script_dir;
440 const char *notification_script;
441 const char *default_public_interface;
446 struct ctdb_monitor_state *monitor;
447 struct ctdb_log_state *log;
448 int start_as_disabled;
449 int start_as_stopped;
450 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
451 uint32_t *recd_ping_count;
452 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
454 TALLOC_CTX *monitor_event_script_ctx;
455 TALLOC_CTX *other_event_script_ctx;
457 struct ctdb_monitor_script_status_ctx *current_monitor_status_ctx;
458 struct ctdb_monitor_script_status_ctx *last_monitor_status_ctx;
460 TALLOC_CTX *banning_ctx;
463 struct ctdb_db_context {
464 struct ctdb_db_context *next, *prev;
465 struct ctdb_context *ctdb;
471 struct tdb_wrap *ltdb;
472 struct ctdb_registered_call *calls; /* list of registered calls */
474 struct timed_event *te;
475 struct ctdb_traverse_local_handle *traverse;
476 bool transaction_active;
477 struct ctdb_vacuum_handle *vacuum_handle;
481 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
482 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
483 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
484 return -1; }} while (0)
486 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
487 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
488 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
491 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
492 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
493 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
494 return NULL; }} while (0)
496 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
497 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
498 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
502 the extended header for records in the ltdb
504 struct ctdb_ltdb_header {
511 enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
512 CTDB_CONTROL_STATISTICS = 1,
514 CTDB_CONTROL_PING = 3,
515 CTDB_CONTROL_GETDBPATH = 4,
516 CTDB_CONTROL_GETVNNMAP = 5,
517 CTDB_CONTROL_SETVNNMAP = 6,
518 CTDB_CONTROL_GET_DEBUG = 7,
519 CTDB_CONTROL_SET_DEBUG = 8,
520 CTDB_CONTROL_GET_DBMAP = 9,
521 CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
522 CTDB_CONTROL_SET_DMASTER = 11,
524 CTDB_CONTROL_PULL_DB = 13,
525 CTDB_CONTROL_PUSH_DB = 14,
526 CTDB_CONTROL_GET_RECMODE = 15,
527 CTDB_CONTROL_SET_RECMODE = 16,
528 CTDB_CONTROL_STATISTICS_RESET = 17,
529 CTDB_CONTROL_DB_ATTACH = 18,
530 CTDB_CONTROL_SET_CALL = 19,
531 CTDB_CONTROL_TRAVERSE_START = 20,
532 CTDB_CONTROL_TRAVERSE_ALL = 21,
533 CTDB_CONTROL_TRAVERSE_DATA = 22,
534 CTDB_CONTROL_REGISTER_SRVID = 23,
535 CTDB_CONTROL_DEREGISTER_SRVID = 24,
536 CTDB_CONTROL_GET_DBNAME = 25,
537 CTDB_CONTROL_ENABLE_SEQNUM = 26,
538 CTDB_CONTROL_UPDATE_SEQNUM = 27,
540 CTDB_CONTROL_DUMP_MEMORY = 29,
541 CTDB_CONTROL_GET_PID = 30,
542 CTDB_CONTROL_GET_RECMASTER = 31,
543 CTDB_CONTROL_SET_RECMASTER = 32,
544 CTDB_CONTROL_FREEZE = 33,
545 CTDB_CONTROL_THAW = 34,
546 CTDB_CONTROL_GET_PNN = 35,
547 CTDB_CONTROL_SHUTDOWN = 36,
548 CTDB_CONTROL_GET_MONMODE = 37,
553 CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */
554 CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */
555 CTDB_CONTROL_TCP_CLIENT = 44,
556 CTDB_CONTROL_TCP_ADD = 45,
557 CTDB_CONTROL_TCP_REMOVE = 46,
558 CTDB_CONTROL_STARTUP = 47,
559 CTDB_CONTROL_SET_TUNABLE = 48,
560 CTDB_CONTROL_GET_TUNABLE = 49,
561 CTDB_CONTROL_LIST_TUNABLES = 50,
562 CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */
563 CTDB_CONTROL_MODIFY_FLAGS = 52,
564 CTDB_CONTROL_GET_ALL_TUNABLES = 53,
565 CTDB_CONTROL_KILL_TCP = 54,
566 CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55,
567 CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56,
568 CTDB_CONTROL_REGISTER_SERVER_ID = 57,
569 CTDB_CONTROL_UNREGISTER_SERVER_ID = 58,
570 CTDB_CONTROL_CHECK_SERVER_ID = 59,
571 CTDB_CONTROL_GET_SERVER_ID_LIST = 60,
572 CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
573 CTDB_CONTROL_PERSISTENT_STORE = 62,
574 CTDB_CONTROL_UPDATE_RECORD = 63,
575 CTDB_CONTROL_SEND_GRATIOUS_ARP = 64,
576 CTDB_CONTROL_TRANSACTION_START = 65,
577 CTDB_CONTROL_TRANSACTION_COMMIT = 66,
578 CTDB_CONTROL_WIPE_DATABASE = 67,
580 CTDB_CONTROL_UPTIME = 69,
581 CTDB_CONTROL_START_RECOVERY = 70,
582 CTDB_CONTROL_END_RECOVERY = 71,
583 CTDB_CONTROL_RELOAD_NODES_FILE = 72,
585 CTDB_CONTROL_TRY_DELETE_RECORDS = 74,
586 CTDB_CONTROL_ENABLE_MONITOR = 75,
587 CTDB_CONTROL_DISABLE_MONITOR = 76,
588 CTDB_CONTROL_ADD_PUBLIC_IP = 77,
589 CTDB_CONTROL_DEL_PUBLIC_IP = 78,
590 CTDB_CONTROL_RUN_EVENTSCRIPTS = 79,
591 CTDB_CONTROL_GET_CAPABILITIES = 80,
592 CTDB_CONTROL_START_PERSISTENT_UPDATE = 81,
593 CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82,
594 CTDB_CONTROL_TRANS2_COMMIT = 83,
595 CTDB_CONTROL_TRANS2_FINISHED = 84,
596 CTDB_CONTROL_TRANS2_ERROR = 85,
597 CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86,
598 CTDB_CONTROL_RECD_PING = 87,
599 CTDB_CONTROL_RELEASE_IP = 88,
600 CTDB_CONTROL_TAKEOVER_IP = 89,
601 CTDB_CONTROL_GET_PUBLIC_IPS = 90,
602 CTDB_CONTROL_GET_NODEMAP = 91,
603 CTDB_CONTROL_EVENT_SCRIPT_INIT = 92,
604 CTDB_CONTROL_EVENT_SCRIPT_START = 93,
605 CTDB_CONTROL_EVENT_SCRIPT_STOP = 94,
606 CTDB_CONTROL_EVENT_SCRIPT_FINISHED = 95,
607 CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96,
608 CTDB_CONTROL_TRAVERSE_KILL = 97,
609 CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98,
610 CTDB_CONTROL_GET_RECLOCK_FILE = 99,
611 CTDB_CONTROL_SET_RECLOCK_FILE = 100,
612 CTDB_CONTROL_STOP_NODE = 101,
613 CTDB_CONTROL_CONTINUE_NODE = 102,
614 CTDB_CONTROL_SET_NATGWSTATE = 103,
615 CTDB_CONTROL_SET_LMASTERROLE = 104,
616 CTDB_CONTROL_SET_RECMASTERROLE = 105,
617 CTDB_CONTROL_EVENT_SCRIPT_DISABLED = 106,
618 CTDB_CONTROL_ENABLE_SCRIPT = 107,
619 CTDB_CONTROL_DISABLE_SCRIPT = 108,
620 CTDB_CONTROL_SET_BAN_STATE = 109,
621 CTDB_CONTROL_GET_BAN_STATE = 110,
622 CTDB_CONTROL_SET_DB_PRIORITY = 111,
623 CTDB_CONTROL_GET_DB_PRIORITY = 112,
624 CTDB_CONTROL_TRANSACTION_CANCEL = 113,
625 CTDB_CONTROL_REGISTER_NOTIFY = 114,
626 CTDB_CONTROL_DEREGISTER_NOTIFY = 115,
627 CTDB_CONTROL_TRANS2_ACTIVE = 116,
631 structure passed in set_call control
633 struct ctdb_control_set_call {
640 struct for kill_tcp control
642 struct ctdb_control_killtcp {
643 ctdb_sock_addr src_addr;
644 ctdb_sock_addr dst_addr;
648 struct holding a ctdb_sock_addr and an interface name,
649 used to add/remove public addresses
651 struct ctdb_control_ip_iface {
659 struct holding a ctdb_sock_addr and an interface name,
660 used for send_gratious_arp
662 struct ctdb_control_gratious_arp {
670 struct for tcp_add and tcp_remove controls
672 struct ctdb_control_tcp_vnn {
678 persistent store control - update this record on all other nodes
680 struct ctdb_control_persistent_store {
687 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
689 struct ctdb_node_flag_change {
696 struct for admin setting a ban
698 struct ctdb_ban_info {
703 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
705 #define CTDB_LMASTER_ANY 0xffffffff
708 state of a in-progress ctdb call
710 struct ctdb_call_state {
711 struct ctdb_call_state *next, *prev;
712 enum call_state state;
714 struct ctdb_req_call *c;
715 struct ctdb_db_context *ctdb_db;
717 struct ctdb_call *call;
720 void (*fn)(struct ctdb_call_state *);
726 /* used for fetch_lock */
727 struct ctdb_fetch_handle {
728 struct ctdb_db_context *ctdb_db;
731 struct ctdb_ltdb_header header;
737 enum ctdb_operation {
740 CTDB_REQ_DMASTER = 2,
741 CTDB_REPLY_DMASTER = 3,
742 CTDB_REPLY_ERROR = 4,
743 CTDB_REQ_MESSAGE = 5,
745 CTDB_REQ_CONTROL = 7,
746 CTDB_REPLY_CONTROL = 8,
747 CTDB_REQ_KEEPALIVE = 9,
750 #define CTDB_MAGIC 0x43544442 /* CTDB */
751 #define CTDB_VERSION 1
756 struct ctdb_req_header {
759 uint32_t ctdb_version;
767 struct ctdb_req_call {
768 struct ctdb_req_header hdr;
774 uint32_t calldatalen;
775 uint8_t data[1]; /* key[] followed by calldata[] */
778 struct ctdb_reply_call {
779 struct ctdb_req_header hdr;
785 struct ctdb_reply_error {
786 struct ctdb_req_header hdr;
792 struct ctdb_req_dmaster {
793 struct ctdb_req_header hdr;
802 struct ctdb_reply_dmaster {
803 struct ctdb_req_header hdr;
811 struct ctdb_req_message {
812 struct ctdb_req_header hdr;
818 struct ctdb_req_getdbpath {
819 struct ctdb_req_header hdr;
823 struct ctdb_reply_getdbpath {
824 struct ctdb_req_header hdr;
829 struct ctdb_req_control {
830 struct ctdb_req_header hdr;
834 #define CTDB_CTRL_FLAG_NOREPLY 1
840 struct ctdb_reply_control {
841 struct ctdb_req_header hdr;
848 struct ctdb_req_keepalive {
849 struct ctdb_req_header hdr;
853 /* types of failures possible from TRANS2_COMMIT */
854 enum ctdb_trans2_commit_error {
855 CTDB_TRANS2_COMMIT_SUCCESS=0, /* all nodes committed successfully */
856 CTDB_TRANS2_COMMIT_TIMEOUT=1, /* at least one node timed out */
857 CTDB_TRANS2_COMMIT_ALLFAIL=2, /* all nodes failed the commit */
858 CTDB_TRANS2_COMMIT_SOMEFAIL=3 /* some nodes failed the commit, some allowed it */
861 /* different calls to event scripts. */
862 enum ctdb_eventscript_call {
863 CTDB_EVENT_STARTUP, /* CTDB starting up: no args. */
864 CTDB_EVENT_START_RECOVERY, /* CTDB recovery starting: no args. */
865 CTDB_EVENT_RECOVERED, /* CTDB recovery finished: no args. */
866 CTDB_EVENT_TAKE_IP, /* IP taken: interface, IP address, netmask bits. */
867 CTDB_EVENT_RELEASE_IP, /* IP released: interface, IP address, netmask bits. */
868 CTDB_EVENT_STOPPED, /* This node is stopped: no args. */
869 CTDB_EVENT_MONITOR, /* Please check if service is healthy: no args. */
870 CTDB_EVENT_STATUS, /* Report service status: no args. */
871 CTDB_EVENT_SHUTDOWN, /* CTDB shutting down: no args. */
872 CTDB_EVENT_RELOAD /* magic */
875 /* internal prototypes */
876 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
877 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
878 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
879 int ctdb_parse_address(struct ctdb_context *ctdb,
880 TALLOC_CTX *mem_ctx, const char *str,
881 struct ctdb_address *address);
882 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
883 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
884 uint32_t ctdb_hash(const TDB_DATA *key);
885 uint32_t ctdb_hash_string(const char *str);
886 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
887 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
888 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
889 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
890 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
891 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
893 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
894 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
895 TDB_DATA key, struct ctdb_ltdb_header *header,
896 TALLOC_CTX *mem_ctx, TDB_DATA *data);
897 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
898 struct ctdb_ltdb_header *header, TDB_DATA data);
899 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
900 struct ctdb_req_control *c,
902 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
903 struct ctdb_req_control *c,
905 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
906 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
907 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
908 TDB_DATA key, struct ctdb_req_header *hdr,
909 void (*recv_pkt)(void *, struct ctdb_req_header *),
910 void *recv_context, bool ignore_generation);
911 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
912 TDB_DATA key, struct ctdb_ltdb_header *header,
913 struct ctdb_req_header *hdr, TDB_DATA *data,
914 void (*recv_pkt)(void *, struct ctdb_req_header *),
915 void *recv_context, bool ignore_generation);
916 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
918 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
919 struct ctdb_call *call,
920 struct ctdb_ltdb_header *header,
924 int ctdbd_start(struct ctdb_context *ctdb);
925 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
926 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
929 queue a packet for sending
931 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
934 setup the fd used by the queue
936 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
939 setup a packet queue on a socket
941 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
942 TALLOC_CTX *mem_ctx, int fd, int alignment,
944 ctdb_queue_cb_fn_t callback,
948 allocate a packet for use in client<->daemon communication
950 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
952 enum ctdb_operation operation,
953 size_t length, size_t slength,
955 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
956 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
958 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
960 enum ctdb_operation operation,
961 size_t length, size_t slength,
963 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
964 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
966 int ctdb_queue_length(struct ctdb_queue *queue);
969 lock a record in the ltdb, given a key
971 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
974 unlock a record in the ltdb, given a key
976 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
980 make a ctdb call to the local daemon - async send. Called from client context.
982 This constructs a ctdb_call request and queues it for processing.
983 This call never blocks.
985 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
986 struct ctdb_call *call);
989 make a recv call to the local ctdb daemon - called from client context
991 This is called when the program wants to wait for a ctdb_call to complete and get the
992 results. This call will block unless the call has already completed.
994 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
996 int ctdb_daemon_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid,
997 ctdb_message_fn_t handler,
1000 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
1001 uint64_t srvid, TDB_DATA data);
1006 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
1007 uint64_t srvid, TDB_DATA data);
1010 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
1012 void (*callback)(void *), void *private_data);
1014 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
1015 struct ctdb_call *call);
1017 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
1019 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
1020 struct ctdb_call *call,
1021 struct ctdb_ltdb_header *header);
1023 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
1024 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx, TDB_DATA *data,
1027 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
1029 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
1031 int ctdb_socket_connect(struct ctdb_context *ctdb);
1033 void ctdb_latency(struct ctdb_db_context *ctdb_db, const char *name, double *latency, struct timeval t);
1034 void ctdb_reclock_latency(struct ctdb_context *ctdb, const char *name, double *latency, double l);
1036 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
1037 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
1038 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
1040 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1041 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1043 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
1044 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
1046 ctdb_control_callback_fn_t callback,
1047 void *private_data);
1049 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
1050 TDB_DATA *outdata, uint64_t tdb_flags, bool persistent);
1052 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
1053 ctdb_fn_t fn, int id);
1055 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
1056 uint32_t opcode, uint32_t flags, TDB_DATA data,
1057 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
1058 struct timeval *timeout, char **errormsg);
1059 int ctdb_control_recv(struct ctdb_context *ctdb,
1060 struct ctdb_client_control_state *state,
1061 TALLOC_CTX *mem_ctx,
1062 TDB_DATA *outdata, int32_t *status, char **errormsg);
1064 struct ctdb_client_control_state *
1065 ctdb_control_send(struct ctdb_context *ctdb,
1066 uint32_t destnode, uint64_t srvid,
1067 uint32_t opcode, uint32_t flags, TDB_DATA data,
1068 TALLOC_CTX *mem_ctx,
1069 struct timeval *timeout,
1075 #define CHECK_CONTROL_DATA_SIZE(size) do { \
1076 if (indata.dsize != size) { \
1077 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
1078 opcode, (unsigned)indata.dsize, (unsigned)size)); \
1083 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1084 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1085 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1086 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1087 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1088 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1091 struct ctdb_traverse_start {
1098 structure used to pass record data between the child and parent
1100 struct ctdb_rec_data {
1109 /* structure used for pulldb control */
1110 struct ctdb_control_pulldb {
1115 /* structure used for sending lists of records */
1116 struct ctdb_marshall_buffer {
1122 /* set dmaster control structure */
1123 struct ctdb_control_set_dmaster {
1129 structure for setting a tunable
1131 struct ctdb_control_set_tunable {
1138 structure for getting a tunable
1140 struct ctdb_control_get_tunable {
1146 structure for listing tunables
1148 struct ctdb_control_list_tunable {
1150 /* returns a : separated list of tunable names */
1155 /* table that contains a list of all nodes a ctdb knows about and their
1158 struct ctdb_node_and_flags {
1161 ctdb_sock_addr addr;
1164 struct ctdb_node_map {
1166 struct ctdb_node_and_flags nodes[1];
1169 struct ctdb_node_and_flagsv4 {
1172 struct sockaddr_in sin;
1175 struct ctdb_node_mapv4 {
1177 struct ctdb_node_and_flagsv4 nodes[1];
1180 struct ctdb_control_wipe_database {
1182 uint32_t transaction_id;
1186 state of a in-progress ctdb call in client
1188 struct ctdb_client_call_state {
1189 enum call_state state;
1191 struct ctdb_db_context *ctdb_db;
1192 struct ctdb_call *call;
1194 void (*fn)(struct ctdb_client_call_state *);
1200 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1201 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1202 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1203 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1204 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1205 TDB_DATA *outdata, uint32_t srcnode);
1207 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1209 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1210 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1211 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1213 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1214 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1216 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1217 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1219 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1221 struct ctdb_ltdb_header *header,
1222 TDB_DATA *key, TDB_DATA *data);
1224 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1225 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1226 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
1228 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1229 struct ctdb_req_control *c,
1230 TDB_DATA indata, bool *async_reply,
1231 const char **errormsg);
1232 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1233 TDB_DATA *outdata, int32_t status, const char *errormsg);
1235 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1236 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1238 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1239 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1241 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1243 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1244 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1245 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1246 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1247 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1248 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1249 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1250 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1251 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1254 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1255 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1256 void ctdb_node_dead(struct ctdb_node *node);
1257 void ctdb_node_connected(struct ctdb_node *node);
1258 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1259 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1260 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1261 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1262 struct ctdb_req_control *c,
1265 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1266 struct ctdb_req_control *c,
1269 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1270 struct ctdb_req_control *c,
1273 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1274 struct ctdb_req_control *c,
1277 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1278 struct ctdb_req_control *c,
1280 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1281 struct ctdb_req_control *c,
1284 struct ctdb_public_ipv4 {
1286 struct sockaddr_in sin;
1289 struct ctdb_public_ip {
1291 ctdb_sock_addr addr;
1293 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1294 uint32_t destnode, struct ctdb_public_ip *ip);
1295 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1296 uint32_t destnode, struct ctdb_public_ip *ip);
1298 struct ctdb_all_public_ipsv4 {
1300 struct ctdb_public_ipv4 ips[1];
1303 struct ctdb_all_public_ips {
1305 struct ctdb_public_ip ips[1];
1307 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1308 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1309 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1310 struct timeval timeout, uint32_t destnode,
1311 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1312 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1313 struct timeval timeout, uint32_t destnode,
1314 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1317 /* from takeover/system.c */
1318 uint32_t uint16_checksum(uint16_t *data, size_t n);
1319 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1320 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1321 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1322 const ctdb_sock_addr *src,
1323 uint32_t seq, uint32_t ack, int rst);
1325 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1326 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1327 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1328 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1329 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1331 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1333 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata);
1334 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1335 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1336 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1337 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1338 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1339 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1341 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1342 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1343 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1344 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1345 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1346 TALLOC_CTX *mem_ctx,
1347 void (*callback)(struct ctdb_context *, int, void *),
1350 enum ctdb_eventscript_call call,
1351 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1352 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1354 void set_nonblocking(int fd);
1355 void set_close_on_exec(int fd);
1357 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1359 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1361 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1363 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1364 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1365 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1366 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1367 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1369 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1371 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1373 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1374 struct timeval timeout,
1376 struct ctdb_tunable *tunables);
1378 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1380 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1381 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1382 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1383 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1386 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1387 int ctdb_sys_close_capture_socket(void *private_data);
1388 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);
1390 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1391 struct timeval timeout,
1393 struct ctdb_control_killtcp *killtcp);
1395 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1396 struct timeval timeout,
1398 struct ctdb_control_ip_iface *pub);
1400 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1401 struct timeval timeout,
1403 struct ctdb_control_ip_iface *pub);
1405 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1406 struct timeval timeout,
1408 ctdb_sock_addr *addr,
1409 const char *ifname);
1411 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1412 struct timeval timeout,
1414 TALLOC_CTX *mem_ctx,
1415 ctdb_sock_addr *addr,
1416 struct ctdb_control_tcp_tickle_list **list);
1419 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1422 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1424 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1426 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1428 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1431 int ctdb_attach_persistent(struct ctdb_context *ctdb);
1433 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1434 struct ctdb_req_control *c,
1435 TDB_DATA recdata, bool *async_reply);
1436 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1437 struct ctdb_req_control *c, TDB_DATA recdata,
1439 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1440 struct ctdb_req_control *c,
1441 TDB_DATA recdata, bool *async_reply);
1443 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1444 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1445 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1446 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1449 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1450 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1452 void ctdb_block_signal(int signum);
1453 void ctdb_unblock_signal(int signum);
1454 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1455 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1458 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1460 struct client_async_data {
1461 enum ctdb_controls opcode;
1462 bool dont_log_errors;
1464 uint32_t fail_count;
1465 client_async_callback callback;
1466 client_async_callback fail_callback;
1467 void *callback_data;
1469 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1470 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1471 int ctdb_client_async_control(struct ctdb_context *ctdb,
1472 enum ctdb_controls opcode,
1475 struct timeval timeout,
1476 bool dont_log_errors,
1478 client_async_callback client_callback,
1479 client_async_callback fail_callback,
1480 void *callback_data);
1482 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1484 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1486 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1487 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1489 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1490 struct ctdb_req_control *c);
1491 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1492 struct ctdb_req_control *c);
1493 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1494 struct ctdb_req_control *c,
1497 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1498 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1499 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1501 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1502 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1504 extern int script_log_level;
1506 int ctdb_ctrl_event_script_init(struct ctdb_context *ctdb);
1507 int ctdb_ctrl_event_script_start(struct ctdb_context *ctdb, const char *name);
1508 int ctdb_ctrl_event_script_stop(struct ctdb_context *ctdb, int32_t res);
1509 int ctdb_ctrl_event_script_finished(struct ctdb_context *ctdb);
1510 int ctdb_ctrl_event_script_disabled(struct ctdb_context *ctdb, const char *name);
1512 int32_t ctdb_control_event_script_init(struct ctdb_context *ctdb);
1513 int32_t ctdb_control_event_script_start(struct ctdb_context *ctdb, TDB_DATA indata);
1514 int32_t ctdb_control_event_script_stop(struct ctdb_context *ctdb, TDB_DATA indata);
1515 int32_t ctdb_control_event_script_disabled(struct ctdb_context *ctdb, TDB_DATA indata);
1516 int32_t ctdb_control_event_script_finished(struct ctdb_context *ctdb);
1519 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb, TDB_DATA *outdata);
1521 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1522 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1524 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1525 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1527 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1529 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1530 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1532 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1533 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1534 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1536 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1538 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1540 int start_syslog_daemon(struct ctdb_context *ctdb);