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 script_log_timeout; /* Log an ERROR when a script took longer than this */
109 uint32_t recovery_grace_period;
110 uint32_t recovery_ban_period;
111 uint32_t database_hash_size;
112 uint32_t database_max_dead;
113 uint32_t rerecovery_timeout;
114 uint32_t enable_bans;
115 uint32_t deterministic_public_ips;
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;
133 uint32_t allow_unhealthy_db_read;
137 an installed ctdb remote call
139 struct ctdb_registered_call {
140 struct ctdb_registered_call *next, *prev;
146 this address structure might need to be generalised later for some
149 struct ctdb_address {
155 check that a pnn is valid
157 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
160 /* called from the queue code when a packet comes in. Called with data==NULL
162 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
165 /* used for callbacks in ctdb_control requests */
166 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
167 int32_t status, TDB_DATA data,
168 const char *errormsg,
171 structure describing a connected client in the daemon
174 struct ctdb_context *ctdb;
176 struct ctdb_queue *queue;
179 struct ctdb_tcp_list *tcp_list;
181 uint32_t num_persistent_updates;
182 struct ctdb_client_notify_list *notify;
186 /* state associated with a public ip address */
188 struct ctdb_vnn *prev, *next;
191 ctdb_sock_addr public_address;
192 uint8_t public_netmask_bits;
194 /* the node number that is serving this public address, if any.
195 If no node serves this ip it is set to -1 */
198 /* List of clients to tickle for this public address */
199 struct ctdb_tcp_array *tcp_array;
201 /* whether we need to update the other nodes with changes to our list
202 of connected clients */
203 bool tcp_update_needed;
205 /* a context to hang sending gratious arp events off */
206 TALLOC_CTX *takeover_ctx;
208 struct ctdb_kill_tcp *killtcp;
212 state associated with one node
215 struct ctdb_context *ctdb;
216 struct ctdb_address address;
217 const char *name; /* for debug messages */
218 void *private_data; /* private to transport */
220 #define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
221 #define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
222 #define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
223 #define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
224 #define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
225 #define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
226 #define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
227 #define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
230 /* used by the dead node monitoring */
235 /* used to track node capabilities, is only valid/tracked inside the
238 uint32_t capabilities;
240 /* a list of controls pending to this node, so we can time them out quickly
241 if the node becomes disconnected */
242 struct daemon_control_state *pending_controls;
244 /* used by the recovery daemon when distributing ip addresses
245 across the nodes. it needs to know which public ip's can be handled
248 struct ctdb_all_public_ips *public_ips;
249 /* used by the recovery dameon to track when a node should be banned */
250 struct ctdb_banning_state *ban_state;
254 transport specific methods
256 struct ctdb_methods {
257 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
258 int (*start)(struct ctdb_context *); /* start the transport */
259 int (*add_node)(struct ctdb_node *); /* setup a new node */
260 int (*connect_node)(struct ctdb_node *); /* connect to node */
261 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
262 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
263 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
264 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
268 transport calls up to the ctdb layer
270 struct ctdb_upcalls {
271 /* recv_pkt is called when a packet comes in */
272 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
274 /* node_dead is called when an attempt to send to a node fails */
275 void (*node_dead)(struct ctdb_node *);
277 /* node_connected is called when a connection to a node is established */
278 void (*node_connected)(struct ctdb_node *);
281 /* list of message handlers - needs to be changed to a more efficient data
282 structure so we can find a message handler given a srvid quickly */
283 struct ctdb_message_list {
284 struct ctdb_context *ctdb;
285 struct ctdb_message_list *next, *prev;
287 ctdb_message_fn_t message_handler;
288 void *message_private;
291 /* additional data required for the daemon mode */
292 struct ctdb_daemon_data {
295 struct ctdb_queue *queue;
299 ctdb status information
301 struct ctdb_statistics {
302 uint32_t num_clients;
305 uint32_t client_packets_sent;
306 uint32_t client_packets_recv;
307 uint32_t node_packets_sent;
308 uint32_t node_packets_recv;
309 uint32_t keepalive_packets_sent;
310 uint32_t keepalive_packets_recv;
314 uint32_t req_dmaster;
315 uint32_t reply_dmaster;
316 uint32_t reply_error;
317 uint32_t req_message;
318 uint32_t req_control;
319 uint32_t reply_control;
323 uint32_t req_message;
324 uint32_t req_control;
335 uint32_t total_calls;
336 uint32_t pending_calls;
337 uint32_t lockwait_calls;
338 uint32_t pending_lockwait_calls;
339 uint32_t childwrite_calls;
340 uint32_t pending_childwrite_calls;
341 uint32_t memory_used;
342 uint32_t __last_counter; /* hack for control_statistics_all */
343 uint32_t max_hop_count;
344 double max_call_latency;
345 double max_lockwait_latency;
346 double max_childwrite_latency;
347 uint32_t num_recoveries;
348 struct timeval statistics_start_time;
349 struct timeval statistics_current_time;
353 #define INVALID_GENERATION 1
354 /* table that contains the mapping between a hash value and lmaster
356 struct ctdb_vnn_map {
363 a wire representation of the vnn map
365 struct ctdb_vnn_map_wire {
371 /* a structure that contains the elements required for the write record
374 struct ctdb_write_record {
378 unsigned char blob[1];
381 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
383 #define CTDB_MONITORING_ACTIVE 0
384 #define CTDB_MONITORING_DISABLED 1
386 /* The different capabilities of the ctdb daemon. */
387 #define CTDB_CAP_RECMASTER 0x00000001
388 #define CTDB_CAP_LMASTER 0x00000002
389 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
390 #define CTDB_CAP_LVS 0x00000004
391 /* This capability is set if NATGW is enabled */
392 #define CTDB_CAP_NATGW 0x00000008
394 #define NUM_DB_PRIORITIES 3
395 /* main state of the ctdb daemon */
396 struct ctdb_context {
397 struct event_context *ev;
398 struct timeval ctdbd_start_time;
399 struct timeval last_recovery_started;
400 struct timeval last_recovery_finished;
401 uint32_t recovery_mode;
402 TALLOC_CTX *tickle_update_context;
403 TALLOC_CTX *keepalive_ctx;
404 struct ctdb_tunable tunable;
405 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
406 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
407 bool freeze_transaction_started;
408 uint32_t freeze_transaction_id;
409 struct ctdb_address address;
411 const char *db_directory;
412 const char *db_directory_persistent;
413 const char *db_directory_state;
414 struct tdb_wrap *db_persistent_health;
415 uint32_t db_persistent_startup_generation;
416 uint64_t db_persistent_check_errors;
417 uint64_t max_persistent_check_errors;
418 const char *transport;
419 char *recovery_lock_file;
420 int recovery_lock_fd;
421 uint32_t pnn; /* our own pnn */
423 uint32_t num_connected;
425 uint32_t capabilities;
426 struct idr_context *idr;
428 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
429 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
430 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
432 const struct ctdb_methods *methods; /* transport methods */
433 const struct ctdb_upcalls *upcalls; /* transport upcalls */
434 void *private_data; /* private to transport */
435 struct ctdb_db_context *db_list;
436 struct ctdb_message_list *message_list;
437 struct ctdb_daemon_data daemon;
438 struct ctdb_statistics statistics;
439 struct ctdb_vnn_map *vnn_map;
440 uint32_t num_clients;
441 uint32_t recovery_master;
442 struct ctdb_call_state *pending_calls;
443 struct ctdb_client_ip *client_ip_list;
444 bool do_checkpublicip;
445 struct trbt_tree *server_ids;
446 const char *event_script_dir;
447 const char *notification_script;
448 const char *default_public_interface;
454 struct ctdb_monitor_state *monitor;
455 struct ctdb_log_state *log;
456 int start_as_disabled;
457 int start_as_stopped;
459 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
460 uint32_t *recd_ping_count;
461 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
463 TALLOC_CTX *event_script_ctx;
465 struct ctdb_event_script_state *current_monitor;
466 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
468 TALLOC_CTX *banning_ctx;
470 struct ctdb_vacuum_child_context *vacuumers;
472 /* mapping from pid to ctdb_client * */
473 struct ctdb_client_pid_list *client_pids;
475 /* used in the recovery daemon to remember the ip allocation */
476 struct trbt_tree *ip_tree;
478 /* emergency shutdown cleanup */
479 void (*emergency_shutdown)(struct ctdb_context *);
482 struct ctdb_db_context {
483 struct ctdb_db_context *next, *prev;
484 struct ctdb_context *ctdb;
490 struct tdb_wrap *ltdb;
491 struct ctdb_registered_call *calls; /* list of registered calls */
493 struct timed_event *seqnum_update;
494 struct ctdb_traverse_local_handle *traverse;
495 bool transaction_active;
496 struct ctdb_vacuum_handle *vacuum_handle;
497 char *unhealthy_reason;
501 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
502 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
503 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
504 return -1; }} while (0)
506 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
507 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
508 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
511 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
512 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
513 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
514 return NULL; }} while (0)
516 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
517 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
518 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
522 the extended header for records in the ltdb
524 struct ctdb_ltdb_header {
531 enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
532 CTDB_CONTROL_STATISTICS = 1,
534 CTDB_CONTROL_PING = 3,
535 CTDB_CONTROL_GETDBPATH = 4,
536 CTDB_CONTROL_GETVNNMAP = 5,
537 CTDB_CONTROL_SETVNNMAP = 6,
538 CTDB_CONTROL_GET_DEBUG = 7,
539 CTDB_CONTROL_SET_DEBUG = 8,
540 CTDB_CONTROL_GET_DBMAP = 9,
541 CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
542 CTDB_CONTROL_SET_DMASTER = 11,
544 CTDB_CONTROL_PULL_DB = 13,
545 CTDB_CONTROL_PUSH_DB = 14,
546 CTDB_CONTROL_GET_RECMODE = 15,
547 CTDB_CONTROL_SET_RECMODE = 16,
548 CTDB_CONTROL_STATISTICS_RESET = 17,
549 CTDB_CONTROL_DB_ATTACH = 18,
550 CTDB_CONTROL_SET_CALL = 19,
551 CTDB_CONTROL_TRAVERSE_START = 20,
552 CTDB_CONTROL_TRAVERSE_ALL = 21,
553 CTDB_CONTROL_TRAVERSE_DATA = 22,
554 CTDB_CONTROL_REGISTER_SRVID = 23,
555 CTDB_CONTROL_DEREGISTER_SRVID = 24,
556 CTDB_CONTROL_GET_DBNAME = 25,
557 CTDB_CONTROL_ENABLE_SEQNUM = 26,
558 CTDB_CONTROL_UPDATE_SEQNUM = 27,
560 CTDB_CONTROL_DUMP_MEMORY = 29,
561 CTDB_CONTROL_GET_PID = 30,
562 CTDB_CONTROL_GET_RECMASTER = 31,
563 CTDB_CONTROL_SET_RECMASTER = 32,
564 CTDB_CONTROL_FREEZE = 33,
565 CTDB_CONTROL_THAW = 34,
566 CTDB_CONTROL_GET_PNN = 35,
567 CTDB_CONTROL_SHUTDOWN = 36,
568 CTDB_CONTROL_GET_MONMODE = 37,
573 CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */
574 CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */
575 CTDB_CONTROL_TCP_CLIENT = 44,
576 CTDB_CONTROL_TCP_ADD = 45,
577 CTDB_CONTROL_TCP_REMOVE = 46,
578 CTDB_CONTROL_STARTUP = 47,
579 CTDB_CONTROL_SET_TUNABLE = 48,
580 CTDB_CONTROL_GET_TUNABLE = 49,
581 CTDB_CONTROL_LIST_TUNABLES = 50,
582 CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */
583 CTDB_CONTROL_MODIFY_FLAGS = 52,
584 CTDB_CONTROL_GET_ALL_TUNABLES = 53,
585 CTDB_CONTROL_KILL_TCP = 54,
586 CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55,
587 CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56,
588 CTDB_CONTROL_REGISTER_SERVER_ID = 57,
589 CTDB_CONTROL_UNREGISTER_SERVER_ID = 58,
590 CTDB_CONTROL_CHECK_SERVER_ID = 59,
591 CTDB_CONTROL_GET_SERVER_ID_LIST = 60,
592 CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
593 CTDB_CONTROL_PERSISTENT_STORE = 62,
594 CTDB_CONTROL_UPDATE_RECORD = 63,
595 CTDB_CONTROL_SEND_GRATIOUS_ARP = 64,
596 CTDB_CONTROL_TRANSACTION_START = 65,
597 CTDB_CONTROL_TRANSACTION_COMMIT = 66,
598 CTDB_CONTROL_WIPE_DATABASE = 67,
600 CTDB_CONTROL_UPTIME = 69,
601 CTDB_CONTROL_START_RECOVERY = 70,
602 CTDB_CONTROL_END_RECOVERY = 71,
603 CTDB_CONTROL_RELOAD_NODES_FILE = 72,
605 CTDB_CONTROL_TRY_DELETE_RECORDS = 74,
606 CTDB_CONTROL_ENABLE_MONITOR = 75,
607 CTDB_CONTROL_DISABLE_MONITOR = 76,
608 CTDB_CONTROL_ADD_PUBLIC_IP = 77,
609 CTDB_CONTROL_DEL_PUBLIC_IP = 78,
610 CTDB_CONTROL_RUN_EVENTSCRIPTS = 79,
611 CTDB_CONTROL_GET_CAPABILITIES = 80,
612 CTDB_CONTROL_START_PERSISTENT_UPDATE = 81,
613 CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82,
614 CTDB_CONTROL_TRANS2_COMMIT = 83,
615 CTDB_CONTROL_TRANS2_FINISHED = 84,
616 CTDB_CONTROL_TRANS2_ERROR = 85,
617 CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86,
618 CTDB_CONTROL_RECD_PING = 87,
619 CTDB_CONTROL_RELEASE_IP = 88,
620 CTDB_CONTROL_TAKEOVER_IP = 89,
621 CTDB_CONTROL_GET_PUBLIC_IPS = 90,
622 CTDB_CONTROL_GET_NODEMAP = 91,
623 CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96,
624 CTDB_CONTROL_TRAVERSE_KILL = 97,
625 CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98,
626 CTDB_CONTROL_GET_RECLOCK_FILE = 99,
627 CTDB_CONTROL_SET_RECLOCK_FILE = 100,
628 CTDB_CONTROL_STOP_NODE = 101,
629 CTDB_CONTROL_CONTINUE_NODE = 102,
630 CTDB_CONTROL_SET_NATGWSTATE = 103,
631 CTDB_CONTROL_SET_LMASTERROLE = 104,
632 CTDB_CONTROL_SET_RECMASTERROLE = 105,
633 CTDB_CONTROL_ENABLE_SCRIPT = 107,
634 CTDB_CONTROL_DISABLE_SCRIPT = 108,
635 CTDB_CONTROL_SET_BAN_STATE = 109,
636 CTDB_CONTROL_GET_BAN_STATE = 110,
637 CTDB_CONTROL_SET_DB_PRIORITY = 111,
638 CTDB_CONTROL_GET_DB_PRIORITY = 112,
639 CTDB_CONTROL_TRANSACTION_CANCEL = 113,
640 CTDB_CONTROL_REGISTER_NOTIFY = 114,
641 CTDB_CONTROL_DEREGISTER_NOTIFY = 115,
642 CTDB_CONTROL_TRANS2_ACTIVE = 116,
643 CTDB_CONTROL_GET_LOG = 117,
644 CTDB_CONTROL_CLEAR_LOG = 118,
645 CTDB_CONTROL_TRANS3_COMMIT = 119,
646 CTDB_CONTROL_GET_DB_SEQNUM = 120,
647 CTDB_CONTROL_DB_SET_HEALTHY = 121,
648 CTDB_CONTROL_DB_GET_HEALTH = 122,
652 structure passed in set_call control
654 struct ctdb_control_set_call {
661 struct for kill_tcp control
663 struct ctdb_control_killtcp {
664 ctdb_sock_addr src_addr;
665 ctdb_sock_addr dst_addr;
669 struct holding a ctdb_sock_addr and an interface name,
670 used to add/remove public addresses
672 struct ctdb_control_ip_iface {
680 struct holding a ctdb_sock_addr and an interface name,
681 used for send_gratious_arp
683 struct ctdb_control_gratious_arp {
691 struct for tcp_add and tcp_remove controls
693 struct ctdb_control_tcp_vnn {
699 persistent store control - update this record on all other nodes
701 struct ctdb_control_persistent_store {
708 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
710 struct ctdb_node_flag_change {
717 struct for admin setting a ban
719 struct ctdb_ban_info {
724 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
726 #define CTDB_LMASTER_ANY 0xffffffff
729 state of a in-progress ctdb call
731 struct ctdb_call_state {
732 struct ctdb_call_state *next, *prev;
733 enum call_state state;
735 struct ctdb_req_call *c;
736 struct ctdb_db_context *ctdb_db;
738 struct ctdb_call *call;
741 void (*fn)(struct ctdb_call_state *);
747 /* used for fetch_lock */
748 struct ctdb_fetch_handle {
749 struct ctdb_db_context *ctdb_db;
752 struct ctdb_ltdb_header header;
758 enum ctdb_operation {
761 CTDB_REQ_DMASTER = 2,
762 CTDB_REPLY_DMASTER = 3,
763 CTDB_REPLY_ERROR = 4,
764 CTDB_REQ_MESSAGE = 5,
766 CTDB_REQ_CONTROL = 7,
767 CTDB_REPLY_CONTROL = 8,
768 CTDB_REQ_KEEPALIVE = 9,
771 #define CTDB_MAGIC 0x43544442 /* CTDB */
772 #define CTDB_VERSION 1
777 struct ctdb_req_header {
780 uint32_t ctdb_version;
788 struct ctdb_req_call {
789 struct ctdb_req_header hdr;
795 uint32_t calldatalen;
796 uint8_t data[1]; /* key[] followed by calldata[] */
799 struct ctdb_reply_call {
800 struct ctdb_req_header hdr;
806 struct ctdb_reply_error {
807 struct ctdb_req_header hdr;
813 struct ctdb_req_dmaster {
814 struct ctdb_req_header hdr;
823 struct ctdb_reply_dmaster {
824 struct ctdb_req_header hdr;
832 struct ctdb_req_message {
833 struct ctdb_req_header hdr;
839 struct ctdb_req_getdbpath {
840 struct ctdb_req_header hdr;
844 struct ctdb_reply_getdbpath {
845 struct ctdb_req_header hdr;
850 struct ctdb_req_control {
851 struct ctdb_req_header hdr;
855 #define CTDB_CTRL_FLAG_NOREPLY 1
861 struct ctdb_reply_control {
862 struct ctdb_req_header hdr;
869 struct ctdb_req_keepalive {
870 struct ctdb_req_header hdr;
874 /* types of failures possible from TRANS2_COMMIT */
875 enum ctdb_trans2_commit_error {
876 CTDB_TRANS2_COMMIT_SUCCESS=0, /* all nodes committed successfully */
877 CTDB_TRANS2_COMMIT_TIMEOUT=1, /* at least one node timed out */
878 CTDB_TRANS2_COMMIT_ALLFAIL=2, /* all nodes failed the commit */
879 CTDB_TRANS2_COMMIT_SOMEFAIL=3 /* some nodes failed the commit, some allowed it */
882 /* internal prototypes */
883 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
884 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
885 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
886 int ctdb_parse_address(struct ctdb_context *ctdb,
887 TALLOC_CTX *mem_ctx, const char *str,
888 struct ctdb_address *address);
889 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
890 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
891 uint32_t ctdb_hash(const TDB_DATA *key);
892 uint32_t ctdb_hash_string(const char *str);
893 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
894 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
895 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
896 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
897 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
898 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
900 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
901 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
902 TDB_DATA key, struct ctdb_ltdb_header *header,
903 TALLOC_CTX *mem_ctx, TDB_DATA *data);
904 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
905 struct ctdb_ltdb_header *header, TDB_DATA data);
906 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
907 struct ctdb_req_control *c,
909 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
910 struct ctdb_req_control *c,
912 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
913 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
914 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
915 TDB_DATA key, struct ctdb_req_header *hdr,
916 void (*recv_pkt)(void *, struct ctdb_req_header *),
917 void *recv_context, bool ignore_generation);
918 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
919 TDB_DATA key, struct ctdb_ltdb_header *header,
920 struct ctdb_req_header *hdr, TDB_DATA *data,
921 void (*recv_pkt)(void *, struct ctdb_req_header *),
922 void *recv_context, bool ignore_generation);
923 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
925 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
926 struct ctdb_call *call,
927 struct ctdb_ltdb_header *header,
931 int ctdbd_start(struct ctdb_context *ctdb);
932 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
933 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
936 queue a packet for sending
938 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
941 setup the fd used by the queue
943 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
946 setup a packet queue on a socket
948 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
949 TALLOC_CTX *mem_ctx, int fd, int alignment,
951 ctdb_queue_cb_fn_t callback,
955 allocate a packet for use in client<->daemon communication
957 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
959 enum ctdb_operation operation,
960 size_t length, size_t slength,
962 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
963 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
965 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
967 enum ctdb_operation operation,
968 size_t length, size_t slength,
970 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
971 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
973 int ctdb_queue_length(struct ctdb_queue *queue);
976 lock a record in the ltdb, given a key
978 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
981 unlock a record in the ltdb, given a key
983 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
987 make a ctdb call to the local daemon - async send. Called from client context.
989 This constructs a ctdb_call request and queues it for processing.
990 This call never blocks.
992 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
993 struct ctdb_call *call);
996 make a recv call to the local ctdb daemon - called from client context
998 This is called when the program wants to wait for a ctdb_call to complete and get the
999 results. This call will block unless the call has already completed.
1001 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
1003 int ctdb_daemon_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid,
1004 ctdb_message_fn_t handler,
1005 void *private_data);
1007 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
1008 uint64_t srvid, TDB_DATA data);
1013 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
1014 uint64_t srvid, TDB_DATA data);
1017 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
1019 void (*callback)(void *), void *private_data);
1021 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
1022 struct ctdb_call *call);
1024 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
1026 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
1027 struct ctdb_call *call,
1028 struct ctdb_ltdb_header *header);
1030 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
1031 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx, TDB_DATA *data,
1034 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
1036 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
1038 int ctdb_socket_connect(struct ctdb_context *ctdb);
1040 void ctdb_latency(struct ctdb_db_context *ctdb_db, const char *name, double *latency, struct timeval t);
1041 void ctdb_reclock_latency(struct ctdb_context *ctdb, const char *name, double *latency, double l);
1043 #define CTDB_BAD_REQID ((uint32_t)-1)
1044 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
1045 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
1046 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
1048 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1049 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1051 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
1052 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
1054 ctdb_control_callback_fn_t callback,
1055 void *private_data);
1057 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
1058 TDB_DATA *outdata, uint64_t tdb_flags, bool persistent);
1060 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
1061 ctdb_fn_t fn, int id);
1063 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
1064 uint32_t opcode, uint32_t flags, TDB_DATA data,
1065 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
1066 struct timeval *timeout, char **errormsg);
1067 int ctdb_control_recv(struct ctdb_context *ctdb,
1068 struct ctdb_client_control_state *state,
1069 TALLOC_CTX *mem_ctx,
1070 TDB_DATA *outdata, int32_t *status, char **errormsg);
1072 struct ctdb_client_control_state *
1073 ctdb_control_send(struct ctdb_context *ctdb,
1074 uint32_t destnode, uint64_t srvid,
1075 uint32_t opcode, uint32_t flags, TDB_DATA data,
1076 TALLOC_CTX *mem_ctx,
1077 struct timeval *timeout,
1083 #define CHECK_CONTROL_DATA_SIZE(size) do { \
1084 if (indata.dsize != size) { \
1085 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
1086 opcode, (unsigned)indata.dsize, (unsigned)size)); \
1091 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1092 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1093 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1094 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1095 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1096 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1099 struct ctdb_traverse_start {
1106 structure used to pass record data between the child and parent
1108 struct ctdb_rec_data {
1117 /* structure used for pulldb control */
1118 struct ctdb_control_pulldb {
1123 /* structure used for sending lists of records */
1124 struct ctdb_marshall_buffer {
1130 /* set dmaster control structure */
1131 struct ctdb_control_set_dmaster {
1137 structure for setting a tunable
1139 struct ctdb_control_set_tunable {
1146 structure for getting a tunable
1148 struct ctdb_control_get_tunable {
1154 structure for listing tunables
1156 struct ctdb_control_list_tunable {
1158 /* returns a : separated list of tunable names */
1163 /* table that contains a list of all nodes a ctdb knows about and their
1166 struct ctdb_node_and_flags {
1169 ctdb_sock_addr addr;
1172 struct ctdb_node_map {
1174 struct ctdb_node_and_flags nodes[1];
1177 struct ctdb_node_and_flagsv4 {
1180 struct sockaddr_in sin;
1183 struct ctdb_node_mapv4 {
1185 struct ctdb_node_and_flagsv4 nodes[1];
1188 struct ctdb_control_wipe_database {
1190 uint32_t transaction_id;
1194 state of a in-progress ctdb call in client
1196 struct ctdb_client_call_state {
1197 enum call_state state;
1199 struct ctdb_db_context *ctdb_db;
1200 struct ctdb_call *call;
1202 void (*fn)(struct ctdb_client_call_state *);
1208 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1209 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1210 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1211 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1212 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1213 TDB_DATA *outdata, uint32_t srcnode);
1215 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1217 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1218 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1219 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1221 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1222 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1224 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1225 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1227 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1229 struct ctdb_ltdb_header *header,
1230 TDB_DATA *key, TDB_DATA *data);
1232 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1233 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1234 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
1236 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1237 struct ctdb_req_control *c,
1238 TDB_DATA indata, bool *async_reply,
1239 const char **errormsg);
1240 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1241 TDB_DATA *outdata, int32_t status, const char *errormsg);
1243 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1244 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1246 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1247 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1249 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1251 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1252 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1253 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1254 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1255 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1256 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1257 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1258 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1259 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1262 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1263 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1264 void ctdb_node_dead(struct ctdb_node *node);
1265 void ctdb_node_connected(struct ctdb_node *node);
1266 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1267 void ctdb_high_priority(struct ctdb_context *ctdb);
1268 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1269 struct ctdb_req_control *c,
1272 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1273 struct ctdb_req_control *c,
1276 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1277 struct ctdb_req_control *c,
1280 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1281 struct ctdb_req_control *c,
1284 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1285 struct ctdb_req_control *c,
1287 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1288 struct ctdb_req_control *c,
1291 struct ctdb_public_ipv4 {
1293 struct sockaddr_in sin;
1296 struct ctdb_public_ip {
1298 ctdb_sock_addr addr;
1300 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1301 uint32_t destnode, struct ctdb_public_ip *ip);
1302 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1303 uint32_t destnode, struct ctdb_public_ip *ip);
1305 struct ctdb_all_public_ipsv4 {
1307 struct ctdb_public_ipv4 ips[1];
1310 struct ctdb_all_public_ips {
1312 struct ctdb_public_ip ips[1];
1314 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1315 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1316 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1317 struct timeval timeout, uint32_t destnode,
1318 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1319 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1320 struct timeval timeout, uint32_t destnode,
1321 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1324 /* from takeover/system.c */
1325 uint32_t uint16_checksum(uint16_t *data, size_t n);
1326 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1327 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1328 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1329 const ctdb_sock_addr *src,
1330 uint32_t seq, uint32_t ack, int rst);
1332 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1333 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1334 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1335 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1336 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1338 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1340 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata);
1341 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1342 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1343 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1344 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1345 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1346 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1348 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1349 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1350 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1351 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1352 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1353 TALLOC_CTX *mem_ctx,
1354 void (*callback)(struct ctdb_context *, int, void *),
1357 enum ctdb_eventscript_call call,
1358 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1359 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1361 void set_nonblocking(int fd);
1362 void set_close_on_exec(int fd);
1364 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1366 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1368 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1370 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1371 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1372 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1373 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1374 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1376 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1378 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1380 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1381 struct timeval timeout,
1383 struct ctdb_tunable *tunables);
1385 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1387 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1388 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1389 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1390 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1393 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1394 int ctdb_sys_close_capture_socket(void *private_data);
1395 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);
1397 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1398 struct timeval timeout,
1400 struct ctdb_control_killtcp *killtcp);
1402 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1403 struct timeval timeout,
1405 struct ctdb_control_ip_iface *pub);
1407 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1408 struct timeval timeout,
1410 struct ctdb_control_ip_iface *pub);
1412 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1413 struct timeval timeout,
1415 ctdb_sock_addr *addr,
1416 const char *ifname);
1418 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1419 struct timeval timeout,
1421 TALLOC_CTX *mem_ctx,
1422 ctdb_sock_addr *addr,
1423 struct ctdb_control_tcp_tickle_list **list);
1426 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1429 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1431 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1433 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1435 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1438 int ctdb_attach_databases(struct ctdb_context *ctdb);
1440 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1441 struct ctdb_req_control *c,
1442 TDB_DATA recdata, bool *async_reply);
1443 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1444 struct ctdb_req_control *c, TDB_DATA recdata,
1446 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1447 struct ctdb_req_control *c,
1448 TDB_DATA recdata, bool *async_reply);
1450 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1451 struct ctdb_req_control *c,
1452 TDB_DATA recdata, bool *async_reply);
1454 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1455 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1456 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1457 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1458 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1459 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1464 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1465 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1467 void ctdb_block_signal(int signum);
1468 void ctdb_unblock_signal(int signum);
1469 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1470 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1471 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1473 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1475 struct client_async_data {
1476 enum ctdb_controls opcode;
1477 bool dont_log_errors;
1479 uint32_t fail_count;
1480 client_async_callback callback;
1481 client_async_callback fail_callback;
1482 void *callback_data;
1484 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1485 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1486 int ctdb_client_async_control(struct ctdb_context *ctdb,
1487 enum ctdb_controls opcode,
1490 struct timeval timeout,
1491 bool dont_log_errors,
1493 client_async_callback client_callback,
1494 client_async_callback fail_callback,
1495 void *callback_data);
1497 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1499 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1501 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1502 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1504 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1505 struct ctdb_req_control *c);
1506 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1507 struct ctdb_req_control *c);
1508 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1509 struct ctdb_req_control *c,
1512 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1513 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1514 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1516 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1517 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1519 extern int script_log_level;
1521 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1525 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1526 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1528 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1529 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1531 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1532 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1534 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1535 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1537 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1538 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1539 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1540 void ctdb_ban_self(struct ctdb_context *ctdb);
1542 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1544 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1546 int start_syslog_daemon(struct ctdb_context *ctdb);
1548 /* Where to send the log messages back to */
1549 struct ctdb_get_log_addr {
1555 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1556 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1557 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1558 struct ctdb_context *ctdb,
1559 void (*logfn)(const char *, uint16_t, void *),
1560 void *logfn_private, pid_t *pid);
1562 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1563 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1565 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1569 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1570 struct ctdb_db_context *ctdb_db);
1571 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1572 struct ctdb_db_context *ctdb_db,
1573 const char *reason,/* NULL means healthy */
1574 int num_healthy_nodes);
1575 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1577 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1578 struct ctdb_all_public_ips *ips);
1579 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1580 struct ctdb_public_ip *ip);
1582 void ctdb_emergency_shutdown(struct ctdb_context *ctdb);