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_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
107 uint32_t script_unhealthy_on_timeout; /* obsolete */
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 reclock_ping_period;
116 uint32_t no_ip_failback;
117 uint32_t verbose_memory_names;
118 uint32_t recd_ping_timeout;
119 uint32_t recd_ping_failcount;
120 uint32_t log_latency_ms;
121 uint32_t reclock_latency_ms;
122 uint32_t recovery_drop_all_ips;
123 uint32_t verify_recovery_lock;
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;
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 *db_directory_state;
410 struct tdb_wrap *db_persistent_health;
411 uint32_t db_persistent_startup_generation;
412 uint64_t db_persistent_check_errors;
413 uint64_t max_persistent_check_errors;
414 const char *transport;
415 char *recovery_lock_file;
416 int recovery_lock_fd;
417 uint32_t pnn; /* our own pnn */
419 uint32_t num_connected;
421 uint32_t capabilities;
422 struct idr_context *idr;
424 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
425 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
426 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
428 const struct ctdb_methods *methods; /* transport methods */
429 const struct ctdb_upcalls *upcalls; /* transport upcalls */
430 void *private_data; /* private to transport */
431 struct ctdb_db_context *db_list;
432 struct ctdb_message_list *message_list;
433 struct ctdb_daemon_data daemon;
434 struct ctdb_statistics statistics;
435 struct ctdb_vnn_map *vnn_map;
436 uint32_t num_clients;
437 uint32_t recovery_master;
438 struct ctdb_call_state *pending_calls;
439 struct ctdb_client_ip *client_ip_list;
440 bool do_checkpublicip;
441 struct _trbt_tree_t *server_ids;
442 const char *event_script_dir;
443 const char *notification_script;
444 const char *default_public_interface;
450 struct ctdb_monitor_state *monitor;
451 struct ctdb_log_state *log;
452 int start_as_disabled;
453 int start_as_stopped;
455 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
456 uint32_t *recd_ping_count;
457 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
459 TALLOC_CTX *event_script_ctx;
461 struct ctdb_event_script_state *current_monitor;
462 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
464 TALLOC_CTX *banning_ctx;
466 /* mapping from pid to ctdb_client * */
467 struct ctdb_client_pid_list *client_pids;
470 struct ctdb_db_context {
471 struct ctdb_db_context *next, *prev;
472 struct ctdb_context *ctdb;
478 struct tdb_wrap *ltdb;
479 struct ctdb_registered_call *calls; /* list of registered calls */
481 struct timed_event *seqnum_update;
482 struct ctdb_traverse_local_handle *traverse;
483 bool transaction_active;
484 struct ctdb_vacuum_handle *vacuum_handle;
485 char *unhealthy_reason;
489 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
490 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
491 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
492 return -1; }} while (0)
494 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
495 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
496 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
499 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
500 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
501 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
502 return NULL; }} while (0)
504 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
505 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
506 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
510 the extended header for records in the ltdb
512 struct ctdb_ltdb_header {
519 enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
520 CTDB_CONTROL_STATISTICS = 1,
522 CTDB_CONTROL_PING = 3,
523 CTDB_CONTROL_GETDBPATH = 4,
524 CTDB_CONTROL_GETVNNMAP = 5,
525 CTDB_CONTROL_SETVNNMAP = 6,
526 CTDB_CONTROL_GET_DEBUG = 7,
527 CTDB_CONTROL_SET_DEBUG = 8,
528 CTDB_CONTROL_GET_DBMAP = 9,
529 CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
530 CTDB_CONTROL_SET_DMASTER = 11,
532 CTDB_CONTROL_PULL_DB = 13,
533 CTDB_CONTROL_PUSH_DB = 14,
534 CTDB_CONTROL_GET_RECMODE = 15,
535 CTDB_CONTROL_SET_RECMODE = 16,
536 CTDB_CONTROL_STATISTICS_RESET = 17,
537 CTDB_CONTROL_DB_ATTACH = 18,
538 CTDB_CONTROL_SET_CALL = 19,
539 CTDB_CONTROL_TRAVERSE_START = 20,
540 CTDB_CONTROL_TRAVERSE_ALL = 21,
541 CTDB_CONTROL_TRAVERSE_DATA = 22,
542 CTDB_CONTROL_REGISTER_SRVID = 23,
543 CTDB_CONTROL_DEREGISTER_SRVID = 24,
544 CTDB_CONTROL_GET_DBNAME = 25,
545 CTDB_CONTROL_ENABLE_SEQNUM = 26,
546 CTDB_CONTROL_UPDATE_SEQNUM = 27,
548 CTDB_CONTROL_DUMP_MEMORY = 29,
549 CTDB_CONTROL_GET_PID = 30,
550 CTDB_CONTROL_GET_RECMASTER = 31,
551 CTDB_CONTROL_SET_RECMASTER = 32,
552 CTDB_CONTROL_FREEZE = 33,
553 CTDB_CONTROL_THAW = 34,
554 CTDB_CONTROL_GET_PNN = 35,
555 CTDB_CONTROL_SHUTDOWN = 36,
556 CTDB_CONTROL_GET_MONMODE = 37,
561 CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */
562 CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */
563 CTDB_CONTROL_TCP_CLIENT = 44,
564 CTDB_CONTROL_TCP_ADD = 45,
565 CTDB_CONTROL_TCP_REMOVE = 46,
566 CTDB_CONTROL_STARTUP = 47,
567 CTDB_CONTROL_SET_TUNABLE = 48,
568 CTDB_CONTROL_GET_TUNABLE = 49,
569 CTDB_CONTROL_LIST_TUNABLES = 50,
570 CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */
571 CTDB_CONTROL_MODIFY_FLAGS = 52,
572 CTDB_CONTROL_GET_ALL_TUNABLES = 53,
573 CTDB_CONTROL_KILL_TCP = 54,
574 CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55,
575 CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56,
576 CTDB_CONTROL_REGISTER_SERVER_ID = 57,
577 CTDB_CONTROL_UNREGISTER_SERVER_ID = 58,
578 CTDB_CONTROL_CHECK_SERVER_ID = 59,
579 CTDB_CONTROL_GET_SERVER_ID_LIST = 60,
580 CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
581 CTDB_CONTROL_PERSISTENT_STORE = 62,
582 CTDB_CONTROL_UPDATE_RECORD = 63,
583 CTDB_CONTROL_SEND_GRATIOUS_ARP = 64,
584 CTDB_CONTROL_TRANSACTION_START = 65,
585 CTDB_CONTROL_TRANSACTION_COMMIT = 66,
586 CTDB_CONTROL_WIPE_DATABASE = 67,
588 CTDB_CONTROL_UPTIME = 69,
589 CTDB_CONTROL_START_RECOVERY = 70,
590 CTDB_CONTROL_END_RECOVERY = 71,
591 CTDB_CONTROL_RELOAD_NODES_FILE = 72,
593 CTDB_CONTROL_TRY_DELETE_RECORDS = 74,
594 CTDB_CONTROL_ENABLE_MONITOR = 75,
595 CTDB_CONTROL_DISABLE_MONITOR = 76,
596 CTDB_CONTROL_ADD_PUBLIC_IP = 77,
597 CTDB_CONTROL_DEL_PUBLIC_IP = 78,
598 CTDB_CONTROL_RUN_EVENTSCRIPTS = 79,
599 CTDB_CONTROL_GET_CAPABILITIES = 80,
600 CTDB_CONTROL_START_PERSISTENT_UPDATE = 81,
601 CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82,
602 CTDB_CONTROL_TRANS2_COMMIT = 83,
603 CTDB_CONTROL_TRANS2_FINISHED = 84,
604 CTDB_CONTROL_TRANS2_ERROR = 85,
605 CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86,
606 CTDB_CONTROL_RECD_PING = 87,
607 CTDB_CONTROL_RELEASE_IP = 88,
608 CTDB_CONTROL_TAKEOVER_IP = 89,
609 CTDB_CONTROL_GET_PUBLIC_IPS = 90,
610 CTDB_CONTROL_GET_NODEMAP = 91,
611 CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96,
612 CTDB_CONTROL_TRAVERSE_KILL = 97,
613 CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98,
614 CTDB_CONTROL_GET_RECLOCK_FILE = 99,
615 CTDB_CONTROL_SET_RECLOCK_FILE = 100,
616 CTDB_CONTROL_STOP_NODE = 101,
617 CTDB_CONTROL_CONTINUE_NODE = 102,
618 CTDB_CONTROL_SET_NATGWSTATE = 103,
619 CTDB_CONTROL_SET_LMASTERROLE = 104,
620 CTDB_CONTROL_SET_RECMASTERROLE = 105,
621 CTDB_CONTROL_ENABLE_SCRIPT = 107,
622 CTDB_CONTROL_DISABLE_SCRIPT = 108,
623 CTDB_CONTROL_SET_BAN_STATE = 109,
624 CTDB_CONTROL_GET_BAN_STATE = 110,
625 CTDB_CONTROL_SET_DB_PRIORITY = 111,
626 CTDB_CONTROL_GET_DB_PRIORITY = 112,
627 CTDB_CONTROL_TRANSACTION_CANCEL = 113,
628 CTDB_CONTROL_REGISTER_NOTIFY = 114,
629 CTDB_CONTROL_DEREGISTER_NOTIFY = 115,
630 CTDB_CONTROL_TRANS2_ACTIVE = 116,
631 CTDB_CONTROL_GET_LOG = 117,
632 CTDB_CONTROL_CLEAR_LOG = 118,
633 CTDB_CONTROL_TRANS3_COMMIT = 119,
634 CTDB_CONTROL_GET_DB_SEQNUM = 120,
635 CTDB_CONTROL_DB_SET_HEALTHY = 121,
636 CTDB_CONTROL_DB_GET_HEALTH = 122,
640 structure passed in set_call control
642 struct ctdb_control_set_call {
649 struct for kill_tcp control
651 struct ctdb_control_killtcp {
652 ctdb_sock_addr src_addr;
653 ctdb_sock_addr dst_addr;
657 struct holding a ctdb_sock_addr and an interface name,
658 used to add/remove public addresses
660 struct ctdb_control_ip_iface {
668 struct holding a ctdb_sock_addr and an interface name,
669 used for send_gratious_arp
671 struct ctdb_control_gratious_arp {
679 struct for tcp_add and tcp_remove controls
681 struct ctdb_control_tcp_vnn {
687 persistent store control - update this record on all other nodes
689 struct ctdb_control_persistent_store {
696 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
698 struct ctdb_node_flag_change {
705 struct for admin setting a ban
707 struct ctdb_ban_info {
712 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
714 #define CTDB_LMASTER_ANY 0xffffffff
717 state of a in-progress ctdb call
719 struct ctdb_call_state {
720 struct ctdb_call_state *next, *prev;
721 enum call_state state;
723 struct ctdb_req_call *c;
724 struct ctdb_db_context *ctdb_db;
726 struct ctdb_call *call;
729 void (*fn)(struct ctdb_call_state *);
735 /* used for fetch_lock */
736 struct ctdb_fetch_handle {
737 struct ctdb_db_context *ctdb_db;
740 struct ctdb_ltdb_header header;
746 enum ctdb_operation {
749 CTDB_REQ_DMASTER = 2,
750 CTDB_REPLY_DMASTER = 3,
751 CTDB_REPLY_ERROR = 4,
752 CTDB_REQ_MESSAGE = 5,
754 CTDB_REQ_CONTROL = 7,
755 CTDB_REPLY_CONTROL = 8,
756 CTDB_REQ_KEEPALIVE = 9,
759 #define CTDB_MAGIC 0x43544442 /* CTDB */
760 #define CTDB_VERSION 1
765 struct ctdb_req_header {
768 uint32_t ctdb_version;
776 struct ctdb_req_call {
777 struct ctdb_req_header hdr;
783 uint32_t calldatalen;
784 uint8_t data[1]; /* key[] followed by calldata[] */
787 struct ctdb_reply_call {
788 struct ctdb_req_header hdr;
794 struct ctdb_reply_error {
795 struct ctdb_req_header hdr;
801 struct ctdb_req_dmaster {
802 struct ctdb_req_header hdr;
811 struct ctdb_reply_dmaster {
812 struct ctdb_req_header hdr;
820 struct ctdb_req_message {
821 struct ctdb_req_header hdr;
827 struct ctdb_req_getdbpath {
828 struct ctdb_req_header hdr;
832 struct ctdb_reply_getdbpath {
833 struct ctdb_req_header hdr;
838 struct ctdb_req_control {
839 struct ctdb_req_header hdr;
843 #define CTDB_CTRL_FLAG_NOREPLY 1
849 struct ctdb_reply_control {
850 struct ctdb_req_header hdr;
857 struct ctdb_req_keepalive {
858 struct ctdb_req_header hdr;
862 /* types of failures possible from TRANS2_COMMIT */
863 enum ctdb_trans2_commit_error {
864 CTDB_TRANS2_COMMIT_SUCCESS=0, /* all nodes committed successfully */
865 CTDB_TRANS2_COMMIT_TIMEOUT=1, /* at least one node timed out */
866 CTDB_TRANS2_COMMIT_ALLFAIL=2, /* all nodes failed the commit */
867 CTDB_TRANS2_COMMIT_SOMEFAIL=3 /* some nodes failed the commit, some allowed it */
870 /* internal prototypes */
871 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
872 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
873 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
874 int ctdb_parse_address(struct ctdb_context *ctdb,
875 TALLOC_CTX *mem_ctx, const char *str,
876 struct ctdb_address *address);
877 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
878 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
879 uint32_t ctdb_hash(const TDB_DATA *key);
880 uint32_t ctdb_hash_string(const char *str);
881 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
882 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
883 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
884 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
885 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
886 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
888 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
889 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
890 TDB_DATA key, struct ctdb_ltdb_header *header,
891 TALLOC_CTX *mem_ctx, TDB_DATA *data);
892 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
893 struct ctdb_ltdb_header *header, TDB_DATA data);
894 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
895 struct ctdb_req_control *c,
897 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
898 struct ctdb_req_control *c,
900 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
901 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
902 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
903 TDB_DATA key, struct ctdb_req_header *hdr,
904 void (*recv_pkt)(void *, struct ctdb_req_header *),
905 void *recv_context, bool ignore_generation);
906 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
907 TDB_DATA key, struct ctdb_ltdb_header *header,
908 struct ctdb_req_header *hdr, TDB_DATA *data,
909 void (*recv_pkt)(void *, struct ctdb_req_header *),
910 void *recv_context, bool ignore_generation);
911 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
913 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
914 struct ctdb_call *call,
915 struct ctdb_ltdb_header *header,
919 int ctdbd_start(struct ctdb_context *ctdb);
920 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
921 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
924 queue a packet for sending
926 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
929 setup the fd used by the queue
931 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
934 setup a packet queue on a socket
936 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
937 TALLOC_CTX *mem_ctx, int fd, int alignment,
939 ctdb_queue_cb_fn_t callback,
943 allocate a packet for use in client<->daemon communication
945 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
947 enum ctdb_operation operation,
948 size_t length, size_t slength,
950 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
951 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
953 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
955 enum ctdb_operation operation,
956 size_t length, size_t slength,
958 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
959 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
961 int ctdb_queue_length(struct ctdb_queue *queue);
964 lock a record in the ltdb, given a key
966 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
969 unlock a record in the ltdb, given a key
971 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
975 make a ctdb call to the local daemon - async send. Called from client context.
977 This constructs a ctdb_call request and queues it for processing.
978 This call never blocks.
980 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
981 struct ctdb_call *call);
984 make a recv call to the local ctdb daemon - called from client context
986 This is called when the program wants to wait for a ctdb_call to complete and get the
987 results. This call will block unless the call has already completed.
989 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
991 int ctdb_daemon_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid,
992 ctdb_message_fn_t handler,
995 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
996 uint64_t srvid, TDB_DATA data);
1001 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
1002 uint64_t srvid, TDB_DATA data);
1005 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
1007 void (*callback)(void *), void *private_data);
1009 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
1010 struct ctdb_call *call);
1012 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
1014 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
1015 struct ctdb_call *call,
1016 struct ctdb_ltdb_header *header);
1018 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
1019 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx, TDB_DATA *data,
1022 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
1024 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
1026 int ctdb_socket_connect(struct ctdb_context *ctdb);
1028 void ctdb_latency(struct ctdb_db_context *ctdb_db, const char *name, double *latency, struct timeval t);
1029 void ctdb_reclock_latency(struct ctdb_context *ctdb, const char *name, double *latency, double l);
1031 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
1032 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
1033 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
1035 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1036 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1038 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
1039 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
1041 ctdb_control_callback_fn_t callback,
1042 void *private_data);
1044 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
1045 TDB_DATA *outdata, uint64_t tdb_flags, bool persistent);
1047 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
1048 ctdb_fn_t fn, int id);
1050 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
1051 uint32_t opcode, uint32_t flags, TDB_DATA data,
1052 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
1053 struct timeval *timeout, char **errormsg);
1054 int ctdb_control_recv(struct ctdb_context *ctdb,
1055 struct ctdb_client_control_state *state,
1056 TALLOC_CTX *mem_ctx,
1057 TDB_DATA *outdata, int32_t *status, char **errormsg);
1059 struct ctdb_client_control_state *
1060 ctdb_control_send(struct ctdb_context *ctdb,
1061 uint32_t destnode, uint64_t srvid,
1062 uint32_t opcode, uint32_t flags, TDB_DATA data,
1063 TALLOC_CTX *mem_ctx,
1064 struct timeval *timeout,
1070 #define CHECK_CONTROL_DATA_SIZE(size) do { \
1071 if (indata.dsize != size) { \
1072 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
1073 opcode, (unsigned)indata.dsize, (unsigned)size)); \
1078 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1079 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1080 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1081 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1082 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1083 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1086 struct ctdb_traverse_start {
1093 structure used to pass record data between the child and parent
1095 struct ctdb_rec_data {
1104 /* structure used for pulldb control */
1105 struct ctdb_control_pulldb {
1110 /* structure used for sending lists of records */
1111 struct ctdb_marshall_buffer {
1117 /* set dmaster control structure */
1118 struct ctdb_control_set_dmaster {
1124 structure for setting a tunable
1126 struct ctdb_control_set_tunable {
1133 structure for getting a tunable
1135 struct ctdb_control_get_tunable {
1141 structure for listing tunables
1143 struct ctdb_control_list_tunable {
1145 /* returns a : separated list of tunable names */
1150 /* table that contains a list of all nodes a ctdb knows about and their
1153 struct ctdb_node_and_flags {
1156 ctdb_sock_addr addr;
1159 struct ctdb_node_map {
1161 struct ctdb_node_and_flags nodes[1];
1164 struct ctdb_node_and_flagsv4 {
1167 struct sockaddr_in sin;
1170 struct ctdb_node_mapv4 {
1172 struct ctdb_node_and_flagsv4 nodes[1];
1175 struct ctdb_control_wipe_database {
1177 uint32_t transaction_id;
1181 state of a in-progress ctdb call in client
1183 struct ctdb_client_call_state {
1184 enum call_state state;
1186 struct ctdb_db_context *ctdb_db;
1187 struct ctdb_call *call;
1189 void (*fn)(struct ctdb_client_call_state *);
1195 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1196 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1197 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1198 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1199 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1200 TDB_DATA *outdata, uint32_t srcnode);
1202 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1204 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1205 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1206 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1208 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1209 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1211 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1212 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1214 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1216 struct ctdb_ltdb_header *header,
1217 TDB_DATA *key, TDB_DATA *data);
1219 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1220 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1221 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
1223 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1224 struct ctdb_req_control *c,
1225 TDB_DATA indata, bool *async_reply,
1226 const char **errormsg);
1227 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1228 TDB_DATA *outdata, int32_t status, const char *errormsg);
1230 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1231 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1233 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1234 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1236 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1238 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1239 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1240 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1241 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1242 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1243 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1244 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1245 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1246 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1249 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1250 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1251 void ctdb_node_dead(struct ctdb_node *node);
1252 void ctdb_node_connected(struct ctdb_node *node);
1253 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1254 void ctdb_high_priority(struct ctdb_context *ctdb);
1255 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1256 struct ctdb_req_control *c,
1259 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1260 struct ctdb_req_control *c,
1263 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1264 struct ctdb_req_control *c,
1267 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1268 struct ctdb_req_control *c,
1271 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1272 struct ctdb_req_control *c,
1274 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1275 struct ctdb_req_control *c,
1278 struct ctdb_public_ipv4 {
1280 struct sockaddr_in sin;
1283 struct ctdb_public_ip {
1285 ctdb_sock_addr addr;
1287 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1288 uint32_t destnode, struct ctdb_public_ip *ip);
1289 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1290 uint32_t destnode, struct ctdb_public_ip *ip);
1292 struct ctdb_all_public_ipsv4 {
1294 struct ctdb_public_ipv4 ips[1];
1297 struct ctdb_all_public_ips {
1299 struct ctdb_public_ip ips[1];
1301 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1302 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1303 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1304 struct timeval timeout, uint32_t destnode,
1305 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1306 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1307 struct timeval timeout, uint32_t destnode,
1308 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1311 /* from takeover/system.c */
1312 uint32_t uint16_checksum(uint16_t *data, size_t n);
1313 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1314 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1315 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1316 const ctdb_sock_addr *src,
1317 uint32_t seq, uint32_t ack, int rst);
1319 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1320 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1323 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1324 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1325 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1326 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1328 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1330 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata);
1331 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1332 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1333 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1334 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1335 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1336 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1338 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1339 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1340 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1341 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1342 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1343 TALLOC_CTX *mem_ctx,
1344 void (*callback)(struct ctdb_context *, int, void *),
1347 enum ctdb_eventscript_call call,
1348 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1349 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1351 void set_nonblocking(int fd);
1352 void set_close_on_exec(int fd);
1354 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1356 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1358 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1360 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1361 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1362 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1363 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1364 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1366 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1368 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1370 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1371 struct timeval timeout,
1373 struct ctdb_tunable *tunables);
1375 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1377 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1378 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1379 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1380 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1383 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1384 int ctdb_sys_close_capture_socket(void *private_data);
1385 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);
1387 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1388 struct timeval timeout,
1390 struct ctdb_control_killtcp *killtcp);
1392 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1393 struct timeval timeout,
1395 struct ctdb_control_ip_iface *pub);
1397 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1398 struct timeval timeout,
1400 struct ctdb_control_ip_iface *pub);
1402 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1403 struct timeval timeout,
1405 ctdb_sock_addr *addr,
1406 const char *ifname);
1408 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1409 struct timeval timeout,
1411 TALLOC_CTX *mem_ctx,
1412 ctdb_sock_addr *addr,
1413 struct ctdb_control_tcp_tickle_list **list);
1416 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1419 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1421 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1423 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1425 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1428 int ctdb_attach_databases(struct ctdb_context *ctdb);
1430 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1431 struct ctdb_req_control *c,
1432 TDB_DATA recdata, bool *async_reply);
1433 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1434 struct ctdb_req_control *c, TDB_DATA recdata,
1436 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1437 struct ctdb_req_control *c,
1438 TDB_DATA recdata, bool *async_reply);
1440 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1441 struct ctdb_req_control *c,
1442 TDB_DATA recdata, bool *async_reply);
1444 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1445 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1446 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1447 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1448 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1449 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1454 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1455 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1457 void ctdb_block_signal(int signum);
1458 void ctdb_unblock_signal(int signum);
1459 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1460 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1461 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1463 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1465 struct client_async_data {
1466 enum ctdb_controls opcode;
1467 bool dont_log_errors;
1469 uint32_t fail_count;
1470 client_async_callback callback;
1471 client_async_callback fail_callback;
1472 void *callback_data;
1474 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1475 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1476 int ctdb_client_async_control(struct ctdb_context *ctdb,
1477 enum ctdb_controls opcode,
1480 struct timeval timeout,
1481 bool dont_log_errors,
1483 client_async_callback client_callback,
1484 client_async_callback fail_callback,
1485 void *callback_data);
1487 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1489 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1491 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1492 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1494 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1495 struct ctdb_req_control *c);
1496 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1497 struct ctdb_req_control *c);
1498 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1499 struct ctdb_req_control *c,
1502 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1503 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1504 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1506 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1507 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1509 extern int script_log_level;
1511 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1515 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1516 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1518 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1519 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1521 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1523 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1524 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1526 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1527 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1528 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1529 void ctdb_ban_self(struct ctdb_context *ctdb);
1531 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1533 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1535 int start_syslog_daemon(struct ctdb_context *ctdb);
1537 /* Where to send the log messages back to */
1538 struct ctdb_get_log_addr {
1544 extern int log_ringbuf_size;
1546 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1547 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1550 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1551 struct ctdb_context *ctdb,
1552 void (*logfn)(const char *, uint16_t, void *),
1553 void *logfn_private, pid_t *pid);
1555 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1556 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1558 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1562 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1563 struct ctdb_db_context *ctdb_db);
1564 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1565 struct ctdb_db_context *ctdb_db,
1566 const char *reason,/* NULL means healthy */
1567 int num_healthy_nodes);
1568 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1570 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1572 void ctdb_fault_setup(void);