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;
186 /* state associated with a public ip address */
188 struct ctdb_vnn *prev, *next;
190 struct ctdb_iface *iface;
192 ctdb_sock_addr public_address;
193 uint8_t public_netmask_bits;
195 /* the node number that is serving this public address, if any.
196 If no node serves this ip it is set to -1 */
199 /* List of clients to tickle for this public address */
200 struct ctdb_tcp_array *tcp_array;
202 /* whether we need to update the other nodes with changes to our list
203 of connected clients */
204 bool tcp_update_needed;
206 /* a context to hang sending gratious arp events off */
207 TALLOC_CTX *takeover_ctx;
209 struct ctdb_kill_tcp *killtcp;
213 state associated with one node
216 struct ctdb_context *ctdb;
217 struct ctdb_address address;
218 const char *name; /* for debug messages */
219 void *private_data; /* private to transport */
221 #define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
222 #define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
223 #define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
224 #define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
225 #define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
226 #define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
227 #define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
228 #define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
231 /* used by the dead node monitoring */
236 /* used to track node capabilities, is only valid/tracked inside the
239 uint32_t capabilities;
241 /* a list of controls pending to this node, so we can time them out quickly
242 if the node becomes disconnected */
243 struct daemon_control_state *pending_controls;
245 /* used by the recovery daemon when distributing ip addresses
246 across the nodes. it needs to know which public ip's can be handled
249 struct ctdb_all_public_ips *public_ips;
250 /* used by the recovery dameon to track when a node should be banned */
251 struct ctdb_banning_state *ban_state;
255 transport specific methods
257 struct ctdb_methods {
258 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
259 int (*start)(struct ctdb_context *); /* start the transport */
260 int (*add_node)(struct ctdb_node *); /* setup a new node */
261 int (*connect_node)(struct ctdb_node *); /* connect to node */
262 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
263 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
264 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
265 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
269 transport calls up to the ctdb layer
271 struct ctdb_upcalls {
272 /* recv_pkt is called when a packet comes in */
273 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
275 /* node_dead is called when an attempt to send to a node fails */
276 void (*node_dead)(struct ctdb_node *);
278 /* node_connected is called when a connection to a node is established */
279 void (*node_connected)(struct ctdb_node *);
282 /* list of message handlers - needs to be changed to a more efficient data
283 structure so we can find a message handler given a srvid quickly */
284 struct ctdb_message_list {
285 struct ctdb_context *ctdb;
286 struct ctdb_message_list *next, *prev;
288 ctdb_message_fn_t message_handler;
289 void *message_private;
292 /* additional data required for the daemon mode */
293 struct ctdb_daemon_data {
296 struct ctdb_queue *queue;
300 ctdb status information
302 struct ctdb_statistics {
303 uint32_t num_clients;
306 uint32_t client_packets_sent;
307 uint32_t client_packets_recv;
308 uint32_t node_packets_sent;
309 uint32_t node_packets_recv;
310 uint32_t keepalive_packets_sent;
311 uint32_t keepalive_packets_recv;
315 uint32_t req_dmaster;
316 uint32_t reply_dmaster;
317 uint32_t reply_error;
318 uint32_t req_message;
319 uint32_t req_control;
320 uint32_t reply_control;
324 uint32_t req_message;
325 uint32_t req_control;
336 uint32_t total_calls;
337 uint32_t pending_calls;
338 uint32_t lockwait_calls;
339 uint32_t pending_lockwait_calls;
340 uint32_t childwrite_calls;
341 uint32_t pending_childwrite_calls;
342 uint32_t memory_used;
343 uint32_t __last_counter; /* hack for control_statistics_all */
344 uint32_t max_hop_count;
345 double max_call_latency;
346 double max_lockwait_latency;
347 double max_childwrite_latency;
351 #define INVALID_GENERATION 1
352 /* table that contains the mapping between a hash value and lmaster
354 struct ctdb_vnn_map {
361 a wire representation of the vnn map
363 struct ctdb_vnn_map_wire {
369 /* a structure that contains the elements required for the write record
372 struct ctdb_write_record {
376 unsigned char blob[1];
379 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
381 #define CTDB_MONITORING_ACTIVE 0
382 #define CTDB_MONITORING_DISABLED 1
384 /* The different capabilities of the ctdb daemon. */
385 #define CTDB_CAP_RECMASTER 0x00000001
386 #define CTDB_CAP_LMASTER 0x00000002
387 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
388 #define CTDB_CAP_LVS 0x00000004
389 /* This capability is set if NATGW is enabled */
390 #define CTDB_CAP_NATGW 0x00000008
392 #define NUM_DB_PRIORITIES 3
393 /* main state of the ctdb daemon */
394 struct ctdb_context {
395 struct event_context *ev;
396 struct timeval ctdbd_start_time;
397 struct timeval last_recovery_started;
398 struct timeval last_recovery_finished;
399 uint32_t recovery_mode;
400 TALLOC_CTX *tickle_update_context;
401 TALLOC_CTX *keepalive_ctx;
402 struct ctdb_tunable tunable;
403 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
404 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
405 bool freeze_transaction_started;
406 uint32_t freeze_transaction_id;
407 struct ctdb_address address;
409 const char *db_directory;
410 const char *db_directory_persistent;
411 const char *db_directory_state;
412 struct tdb_wrap *db_persistent_health;
413 uint32_t db_persistent_startup_generation;
414 uint64_t db_persistent_check_errors;
415 uint64_t max_persistent_check_errors;
416 const char *transport;
417 char *recovery_lock_file;
418 int recovery_lock_fd;
419 uint32_t pnn; /* our own pnn */
421 uint32_t num_connected;
423 uint32_t capabilities;
424 struct idr_context *idr;
426 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
427 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
428 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
429 struct ctdb_iface *ifaces; /* list of local interfaces */
431 const struct ctdb_methods *methods; /* transport methods */
432 const struct ctdb_upcalls *upcalls; /* transport upcalls */
433 void *private_data; /* private to transport */
434 struct ctdb_db_context *db_list;
435 struct ctdb_message_list *message_list;
436 struct ctdb_daemon_data daemon;
437 struct ctdb_statistics statistics;
438 struct ctdb_vnn_map *vnn_map;
439 uint32_t num_clients;
440 uint32_t recovery_master;
441 struct ctdb_call_state *pending_calls;
442 struct ctdb_client_ip *client_ip_list;
443 bool do_checkpublicip;
444 struct _trbt_tree_t *server_ids;
445 const char *event_script_dir;
446 const char *notification_script;
447 const char *default_public_interface;
453 struct ctdb_monitor_state *monitor;
454 struct ctdb_log_state *log;
455 int start_as_disabled;
456 int start_as_stopped;
458 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
459 uint32_t *recd_ping_count;
460 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
462 TALLOC_CTX *event_script_ctx;
464 struct ctdb_event_script_state *current_monitor;
465 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
467 TALLOC_CTX *banning_ctx;
469 /* mapping from pid to ctdb_client * */
470 struct ctdb_client_pid_list *client_pids;
473 struct ctdb_db_context {
474 struct ctdb_db_context *next, *prev;
475 struct ctdb_context *ctdb;
481 struct tdb_wrap *ltdb;
482 struct ctdb_registered_call *calls; /* list of registered calls */
484 struct timed_event *seqnum_update;
485 struct ctdb_traverse_local_handle *traverse;
486 bool transaction_active;
487 struct ctdb_vacuum_handle *vacuum_handle;
488 char *unhealthy_reason;
492 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
493 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
494 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
495 return -1; }} while (0)
497 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
498 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
499 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
502 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
503 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
504 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
505 return NULL; }} while (0)
507 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
508 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
509 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
513 the extended header for records in the ltdb
515 struct ctdb_ltdb_header {
522 enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
523 CTDB_CONTROL_STATISTICS = 1,
525 CTDB_CONTROL_PING = 3,
526 CTDB_CONTROL_GETDBPATH = 4,
527 CTDB_CONTROL_GETVNNMAP = 5,
528 CTDB_CONTROL_SETVNNMAP = 6,
529 CTDB_CONTROL_GET_DEBUG = 7,
530 CTDB_CONTROL_SET_DEBUG = 8,
531 CTDB_CONTROL_GET_DBMAP = 9,
532 CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
533 CTDB_CONTROL_SET_DMASTER = 11,
535 CTDB_CONTROL_PULL_DB = 13,
536 CTDB_CONTROL_PUSH_DB = 14,
537 CTDB_CONTROL_GET_RECMODE = 15,
538 CTDB_CONTROL_SET_RECMODE = 16,
539 CTDB_CONTROL_STATISTICS_RESET = 17,
540 CTDB_CONTROL_DB_ATTACH = 18,
541 CTDB_CONTROL_SET_CALL = 19,
542 CTDB_CONTROL_TRAVERSE_START = 20,
543 CTDB_CONTROL_TRAVERSE_ALL = 21,
544 CTDB_CONTROL_TRAVERSE_DATA = 22,
545 CTDB_CONTROL_REGISTER_SRVID = 23,
546 CTDB_CONTROL_DEREGISTER_SRVID = 24,
547 CTDB_CONTROL_GET_DBNAME = 25,
548 CTDB_CONTROL_ENABLE_SEQNUM = 26,
549 CTDB_CONTROL_UPDATE_SEQNUM = 27,
551 CTDB_CONTROL_DUMP_MEMORY = 29,
552 CTDB_CONTROL_GET_PID = 30,
553 CTDB_CONTROL_GET_RECMASTER = 31,
554 CTDB_CONTROL_SET_RECMASTER = 32,
555 CTDB_CONTROL_FREEZE = 33,
556 CTDB_CONTROL_THAW = 34,
557 CTDB_CONTROL_GET_PNN = 35,
558 CTDB_CONTROL_SHUTDOWN = 36,
559 CTDB_CONTROL_GET_MONMODE = 37,
564 CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */
565 CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */
566 CTDB_CONTROL_TCP_CLIENT = 44,
567 CTDB_CONTROL_TCP_ADD = 45,
568 CTDB_CONTROL_TCP_REMOVE = 46,
569 CTDB_CONTROL_STARTUP = 47,
570 CTDB_CONTROL_SET_TUNABLE = 48,
571 CTDB_CONTROL_GET_TUNABLE = 49,
572 CTDB_CONTROL_LIST_TUNABLES = 50,
573 CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */
574 CTDB_CONTROL_MODIFY_FLAGS = 52,
575 CTDB_CONTROL_GET_ALL_TUNABLES = 53,
576 CTDB_CONTROL_KILL_TCP = 54,
577 CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55,
578 CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56,
579 CTDB_CONTROL_REGISTER_SERVER_ID = 57,
580 CTDB_CONTROL_UNREGISTER_SERVER_ID = 58,
581 CTDB_CONTROL_CHECK_SERVER_ID = 59,
582 CTDB_CONTROL_GET_SERVER_ID_LIST = 60,
583 CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
584 CTDB_CONTROL_PERSISTENT_STORE = 62,
585 CTDB_CONTROL_UPDATE_RECORD = 63,
586 CTDB_CONTROL_SEND_GRATIOUS_ARP = 64,
587 CTDB_CONTROL_TRANSACTION_START = 65,
588 CTDB_CONTROL_TRANSACTION_COMMIT = 66,
589 CTDB_CONTROL_WIPE_DATABASE = 67,
591 CTDB_CONTROL_UPTIME = 69,
592 CTDB_CONTROL_START_RECOVERY = 70,
593 CTDB_CONTROL_END_RECOVERY = 71,
594 CTDB_CONTROL_RELOAD_NODES_FILE = 72,
596 CTDB_CONTROL_TRY_DELETE_RECORDS = 74,
597 CTDB_CONTROL_ENABLE_MONITOR = 75,
598 CTDB_CONTROL_DISABLE_MONITOR = 76,
599 CTDB_CONTROL_ADD_PUBLIC_IP = 77,
600 CTDB_CONTROL_DEL_PUBLIC_IP = 78,
601 CTDB_CONTROL_RUN_EVENTSCRIPTS = 79,
602 CTDB_CONTROL_GET_CAPABILITIES = 80,
603 CTDB_CONTROL_START_PERSISTENT_UPDATE = 81,
604 CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82,
605 CTDB_CONTROL_TRANS2_COMMIT = 83,
606 CTDB_CONTROL_TRANS2_FINISHED = 84,
607 CTDB_CONTROL_TRANS2_ERROR = 85,
608 CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86,
609 CTDB_CONTROL_RECD_PING = 87,
610 CTDB_CONTROL_RELEASE_IP = 88,
611 CTDB_CONTROL_TAKEOVER_IP = 89,
612 CTDB_CONTROL_GET_PUBLIC_IPS = 90,
613 CTDB_CONTROL_GET_NODEMAP = 91,
614 CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96,
615 CTDB_CONTROL_TRAVERSE_KILL = 97,
616 CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98,
617 CTDB_CONTROL_GET_RECLOCK_FILE = 99,
618 CTDB_CONTROL_SET_RECLOCK_FILE = 100,
619 CTDB_CONTROL_STOP_NODE = 101,
620 CTDB_CONTROL_CONTINUE_NODE = 102,
621 CTDB_CONTROL_SET_NATGWSTATE = 103,
622 CTDB_CONTROL_SET_LMASTERROLE = 104,
623 CTDB_CONTROL_SET_RECMASTERROLE = 105,
624 CTDB_CONTROL_ENABLE_SCRIPT = 107,
625 CTDB_CONTROL_DISABLE_SCRIPT = 108,
626 CTDB_CONTROL_SET_BAN_STATE = 109,
627 CTDB_CONTROL_GET_BAN_STATE = 110,
628 CTDB_CONTROL_SET_DB_PRIORITY = 111,
629 CTDB_CONTROL_GET_DB_PRIORITY = 112,
630 CTDB_CONTROL_TRANSACTION_CANCEL = 113,
631 CTDB_CONTROL_REGISTER_NOTIFY = 114,
632 CTDB_CONTROL_DEREGISTER_NOTIFY = 115,
633 CTDB_CONTROL_TRANS2_ACTIVE = 116,
634 CTDB_CONTROL_GET_LOG = 117,
635 CTDB_CONTROL_CLEAR_LOG = 118,
636 CTDB_CONTROL_TRANS3_COMMIT = 119,
637 CTDB_CONTROL_GET_DB_SEQNUM = 120,
638 CTDB_CONTROL_DB_SET_HEALTHY = 121,
639 CTDB_CONTROL_DB_GET_HEALTH = 122,
643 structure passed in set_call control
645 struct ctdb_control_set_call {
652 struct for kill_tcp control
654 struct ctdb_control_killtcp {
655 ctdb_sock_addr src_addr;
656 ctdb_sock_addr dst_addr;
660 struct holding a ctdb_sock_addr and an interface name,
661 used to add/remove public addresses
663 struct ctdb_control_ip_iface {
671 struct holding a ctdb_sock_addr and an interface name,
672 used for send_gratious_arp
674 struct ctdb_control_gratious_arp {
682 struct for tcp_add and tcp_remove controls
684 struct ctdb_control_tcp_vnn {
690 persistent store control - update this record on all other nodes
692 struct ctdb_control_persistent_store {
699 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
701 struct ctdb_node_flag_change {
708 struct for admin setting a ban
710 struct ctdb_ban_info {
715 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
717 #define CTDB_LMASTER_ANY 0xffffffff
720 state of a in-progress ctdb call
722 struct ctdb_call_state {
723 struct ctdb_call_state *next, *prev;
724 enum call_state state;
726 struct ctdb_req_call *c;
727 struct ctdb_db_context *ctdb_db;
729 struct ctdb_call *call;
732 void (*fn)(struct ctdb_call_state *);
738 /* used for fetch_lock */
739 struct ctdb_fetch_handle {
740 struct ctdb_db_context *ctdb_db;
743 struct ctdb_ltdb_header header;
749 enum ctdb_operation {
752 CTDB_REQ_DMASTER = 2,
753 CTDB_REPLY_DMASTER = 3,
754 CTDB_REPLY_ERROR = 4,
755 CTDB_REQ_MESSAGE = 5,
757 CTDB_REQ_CONTROL = 7,
758 CTDB_REPLY_CONTROL = 8,
759 CTDB_REQ_KEEPALIVE = 9,
762 #define CTDB_MAGIC 0x43544442 /* CTDB */
763 #define CTDB_VERSION 1
768 struct ctdb_req_header {
771 uint32_t ctdb_version;
779 struct ctdb_req_call {
780 struct ctdb_req_header hdr;
786 uint32_t calldatalen;
787 uint8_t data[1]; /* key[] followed by calldata[] */
790 struct ctdb_reply_call {
791 struct ctdb_req_header hdr;
797 struct ctdb_reply_error {
798 struct ctdb_req_header hdr;
804 struct ctdb_req_dmaster {
805 struct ctdb_req_header hdr;
814 struct ctdb_reply_dmaster {
815 struct ctdb_req_header hdr;
823 struct ctdb_req_message {
824 struct ctdb_req_header hdr;
830 struct ctdb_req_getdbpath {
831 struct ctdb_req_header hdr;
835 struct ctdb_reply_getdbpath {
836 struct ctdb_req_header hdr;
841 struct ctdb_req_control {
842 struct ctdb_req_header hdr;
846 #define CTDB_CTRL_FLAG_NOREPLY 1
852 struct ctdb_reply_control {
853 struct ctdb_req_header hdr;
860 struct ctdb_req_keepalive {
861 struct ctdb_req_header hdr;
865 /* types of failures possible from TRANS2_COMMIT */
866 enum ctdb_trans2_commit_error {
867 CTDB_TRANS2_COMMIT_SUCCESS=0, /* all nodes committed successfully */
868 CTDB_TRANS2_COMMIT_TIMEOUT=1, /* at least one node timed out */
869 CTDB_TRANS2_COMMIT_ALLFAIL=2, /* all nodes failed the commit */
870 CTDB_TRANS2_COMMIT_SOMEFAIL=3 /* some nodes failed the commit, some allowed it */
873 /* internal prototypes */
874 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
875 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
876 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
877 int ctdb_parse_address(struct ctdb_context *ctdb,
878 TALLOC_CTX *mem_ctx, const char *str,
879 struct ctdb_address *address);
880 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
881 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
882 uint32_t ctdb_hash(const TDB_DATA *key);
883 uint32_t ctdb_hash_string(const char *str);
884 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
885 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
886 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
887 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
888 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
889 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
891 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
892 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
893 TDB_DATA key, struct ctdb_ltdb_header *header,
894 TALLOC_CTX *mem_ctx, TDB_DATA *data);
895 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
896 struct ctdb_ltdb_header *header, TDB_DATA data);
897 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
898 struct ctdb_req_control *c,
900 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
901 struct ctdb_req_control *c,
903 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
904 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
905 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
906 TDB_DATA key, struct ctdb_req_header *hdr,
907 void (*recv_pkt)(void *, struct ctdb_req_header *),
908 void *recv_context, bool ignore_generation);
909 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
910 TDB_DATA key, struct ctdb_ltdb_header *header,
911 struct ctdb_req_header *hdr, TDB_DATA *data,
912 void (*recv_pkt)(void *, struct ctdb_req_header *),
913 void *recv_context, bool ignore_generation);
914 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
916 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
917 struct ctdb_call *call,
918 struct ctdb_ltdb_header *header,
922 int ctdbd_start(struct ctdb_context *ctdb);
923 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
924 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
927 queue a packet for sending
929 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
932 setup the fd used by the queue
934 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
937 setup a packet queue on a socket
939 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
940 TALLOC_CTX *mem_ctx, int fd, int alignment,
942 ctdb_queue_cb_fn_t callback,
946 allocate a packet for use in client<->daemon communication
948 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
950 enum ctdb_operation operation,
951 size_t length, size_t slength,
953 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
954 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
956 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
958 enum ctdb_operation operation,
959 size_t length, size_t slength,
961 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
962 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
964 int ctdb_queue_length(struct ctdb_queue *queue);
967 lock a record in the ltdb, given a key
969 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
972 unlock a record in the ltdb, given a key
974 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
978 make a ctdb call to the local daemon - async send. Called from client context.
980 This constructs a ctdb_call request and queues it for processing.
981 This call never blocks.
983 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
984 struct ctdb_call *call);
987 make a recv call to the local ctdb daemon - called from client context
989 This is called when the program wants to wait for a ctdb_call to complete and get the
990 results. This call will block unless the call has already completed.
992 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
994 int ctdb_daemon_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid,
995 ctdb_message_fn_t handler,
998 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
999 uint64_t srvid, TDB_DATA data);
1004 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
1005 uint64_t srvid, TDB_DATA data);
1008 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
1010 void (*callback)(void *), void *private_data);
1012 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
1013 struct ctdb_call *call);
1015 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
1017 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
1018 struct ctdb_call *call,
1019 struct ctdb_ltdb_header *header);
1021 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
1022 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx, TDB_DATA *data,
1025 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
1027 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
1029 int ctdb_socket_connect(struct ctdb_context *ctdb);
1031 void ctdb_latency(struct ctdb_db_context *ctdb_db, const char *name, double *latency, struct timeval t);
1032 void ctdb_reclock_latency(struct ctdb_context *ctdb, const char *name, double *latency, double l);
1034 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
1035 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
1036 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
1038 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1039 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1041 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
1042 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
1044 ctdb_control_callback_fn_t callback,
1045 void *private_data);
1047 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
1048 TDB_DATA *outdata, uint64_t tdb_flags, bool persistent);
1050 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
1051 ctdb_fn_t fn, int id);
1053 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
1054 uint32_t opcode, uint32_t flags, TDB_DATA data,
1055 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
1056 struct timeval *timeout, char **errormsg);
1057 int ctdb_control_recv(struct ctdb_context *ctdb,
1058 struct ctdb_client_control_state *state,
1059 TALLOC_CTX *mem_ctx,
1060 TDB_DATA *outdata, int32_t *status, char **errormsg);
1062 struct ctdb_client_control_state *
1063 ctdb_control_send(struct ctdb_context *ctdb,
1064 uint32_t destnode, uint64_t srvid,
1065 uint32_t opcode, uint32_t flags, TDB_DATA data,
1066 TALLOC_CTX *mem_ctx,
1067 struct timeval *timeout,
1073 #define CHECK_CONTROL_DATA_SIZE(size) do { \
1074 if (indata.dsize != size) { \
1075 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
1076 opcode, (unsigned)indata.dsize, (unsigned)size)); \
1081 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1082 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1083 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1084 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1085 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1086 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1089 struct ctdb_traverse_start {
1096 structure used to pass record data between the child and parent
1098 struct ctdb_rec_data {
1107 /* structure used for pulldb control */
1108 struct ctdb_control_pulldb {
1113 /* structure used for sending lists of records */
1114 struct ctdb_marshall_buffer {
1120 /* set dmaster control structure */
1121 struct ctdb_control_set_dmaster {
1127 structure for setting a tunable
1129 struct ctdb_control_set_tunable {
1136 structure for getting a tunable
1138 struct ctdb_control_get_tunable {
1144 structure for listing tunables
1146 struct ctdb_control_list_tunable {
1148 /* returns a : separated list of tunable names */
1153 /* table that contains a list of all nodes a ctdb knows about and their
1156 struct ctdb_node_and_flags {
1159 ctdb_sock_addr addr;
1162 struct ctdb_node_map {
1164 struct ctdb_node_and_flags nodes[1];
1167 struct ctdb_node_and_flagsv4 {
1170 struct sockaddr_in sin;
1173 struct ctdb_node_mapv4 {
1175 struct ctdb_node_and_flagsv4 nodes[1];
1178 struct ctdb_control_wipe_database {
1180 uint32_t transaction_id;
1184 state of a in-progress ctdb call in client
1186 struct ctdb_client_call_state {
1187 enum call_state state;
1189 struct ctdb_db_context *ctdb_db;
1190 struct ctdb_call *call;
1192 void (*fn)(struct ctdb_client_call_state *);
1198 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1199 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1200 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1201 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1202 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1203 TDB_DATA *outdata, uint32_t srcnode);
1205 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1207 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1208 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1209 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1211 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1212 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1214 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1215 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1217 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1219 struct ctdb_ltdb_header *header,
1220 TDB_DATA *key, TDB_DATA *data);
1222 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1223 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1224 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
1226 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1227 struct ctdb_req_control *c,
1228 TDB_DATA indata, bool *async_reply,
1229 const char **errormsg);
1230 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1231 TDB_DATA *outdata, int32_t status, const char *errormsg);
1233 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1234 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1236 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1237 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1239 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1241 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1242 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1243 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1244 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1245 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1246 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1247 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1248 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1249 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1252 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1253 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1254 void ctdb_node_dead(struct ctdb_node *node);
1255 void ctdb_node_connected(struct ctdb_node *node);
1256 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1257 void ctdb_high_priority(struct ctdb_context *ctdb);
1258 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1259 struct ctdb_req_control *c,
1262 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1263 struct ctdb_req_control *c,
1266 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1267 struct ctdb_req_control *c,
1270 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1271 struct ctdb_req_control *c,
1274 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1275 struct ctdb_req_control *c,
1277 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1278 struct ctdb_req_control *c,
1281 struct ctdb_public_ipv4 {
1283 struct sockaddr_in sin;
1286 struct ctdb_public_ip {
1288 ctdb_sock_addr addr;
1290 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1291 uint32_t destnode, struct ctdb_public_ip *ip);
1292 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1293 uint32_t destnode, struct ctdb_public_ip *ip);
1295 struct ctdb_all_public_ipsv4 {
1297 struct ctdb_public_ipv4 ips[1];
1300 struct ctdb_all_public_ips {
1302 struct ctdb_public_ip ips[1];
1304 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1305 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1306 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1307 struct timeval timeout, uint32_t destnode,
1308 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1309 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1310 struct timeval timeout, uint32_t destnode,
1311 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1314 /* from takeover/system.c */
1315 uint32_t uint16_checksum(uint16_t *data, size_t n);
1316 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1317 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1318 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1319 const ctdb_sock_addr *src,
1320 uint32_t seq, uint32_t ack, int rst);
1322 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1323 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1326 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1327 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1328 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1329 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1331 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1333 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata);
1334 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1335 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1336 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1337 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1338 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1339 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1341 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1342 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1343 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1344 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1345 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1346 TALLOC_CTX *mem_ctx,
1347 void (*callback)(struct ctdb_context *, int, void *),
1350 enum ctdb_eventscript_call call,
1351 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1352 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1354 void set_nonblocking(int fd);
1355 void set_close_on_exec(int fd);
1357 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1359 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1361 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1363 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1364 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1365 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1366 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1367 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1369 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1371 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1373 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1374 struct timeval timeout,
1376 struct ctdb_tunable *tunables);
1378 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1380 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1381 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1382 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1383 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1386 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1387 int ctdb_sys_close_capture_socket(void *private_data);
1388 int ctdb_sys_read_tcp_packet(int s, void *private_data, ctdb_sock_addr *src, ctdb_sock_addr *dst, uint32_t *ack_seq, uint32_t *seq);
1390 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1391 struct timeval timeout,
1393 struct ctdb_control_killtcp *killtcp);
1395 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1396 struct timeval timeout,
1398 struct ctdb_control_ip_iface *pub);
1400 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1401 struct timeval timeout,
1403 struct ctdb_control_ip_iface *pub);
1405 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1406 struct timeval timeout,
1408 ctdb_sock_addr *addr,
1409 const char *ifname);
1411 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1412 struct timeval timeout,
1414 TALLOC_CTX *mem_ctx,
1415 ctdb_sock_addr *addr,
1416 struct ctdb_control_tcp_tickle_list **list);
1419 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1422 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1424 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1426 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1428 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1431 int ctdb_attach_databases(struct ctdb_context *ctdb);
1433 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1434 struct ctdb_req_control *c,
1435 TDB_DATA recdata, bool *async_reply);
1436 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1437 struct ctdb_req_control *c, TDB_DATA recdata,
1439 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1440 struct ctdb_req_control *c,
1441 TDB_DATA recdata, bool *async_reply);
1443 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1444 struct ctdb_req_control *c,
1445 TDB_DATA recdata, bool *async_reply);
1447 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1448 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1449 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1450 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1451 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1452 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1457 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1458 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1460 void ctdb_block_signal(int signum);
1461 void ctdb_unblock_signal(int signum);
1462 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1463 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1464 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1466 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1468 struct client_async_data {
1469 enum ctdb_controls opcode;
1470 bool dont_log_errors;
1472 uint32_t fail_count;
1473 client_async_callback callback;
1474 client_async_callback fail_callback;
1475 void *callback_data;
1477 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1478 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1479 int ctdb_client_async_control(struct ctdb_context *ctdb,
1480 enum ctdb_controls opcode,
1483 struct timeval timeout,
1484 bool dont_log_errors,
1486 client_async_callback client_callback,
1487 client_async_callback fail_callback,
1488 void *callback_data);
1490 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1492 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1494 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1495 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1497 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1498 struct ctdb_req_control *c);
1499 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1500 struct ctdb_req_control *c);
1501 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1502 struct ctdb_req_control *c,
1505 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1506 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1507 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1509 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1510 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1512 extern int script_log_level;
1514 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1518 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1519 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1521 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1522 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1524 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1526 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1527 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1529 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1530 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1531 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1532 void ctdb_ban_self(struct ctdb_context *ctdb);
1534 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1536 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1538 int start_syslog_daemon(struct ctdb_context *ctdb);
1540 /* Where to send the log messages back to */
1541 struct ctdb_get_log_addr {
1547 extern int log_ringbuf_size;
1549 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1550 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1553 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1554 struct ctdb_context *ctdb,
1555 void (*logfn)(const char *, uint16_t, void *),
1556 void *logfn_private, pid_t *pid);
1558 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1559 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1561 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1565 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1566 struct ctdb_db_context *ctdb_db);
1567 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1568 struct ctdb_db_context *ctdb_db,
1569 const char *reason,/* NULL means healthy */
1570 int num_healthy_nodes);
1571 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1573 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1575 void ctdb_fault_setup(void);