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 *known_public_ips;
250 struct ctdb_all_public_ips *available_public_ips;
251 /* used by the recovery dameon to track when a node should be banned */
252 struct ctdb_banning_state *ban_state;
256 transport specific methods
258 struct ctdb_methods {
259 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
260 int (*start)(struct ctdb_context *); /* start the transport */
261 int (*add_node)(struct ctdb_node *); /* setup a new node */
262 int (*connect_node)(struct ctdb_node *); /* connect to node */
263 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
264 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
265 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
266 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
270 transport calls up to the ctdb layer
272 struct ctdb_upcalls {
273 /* recv_pkt is called when a packet comes in */
274 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
276 /* node_dead is called when an attempt to send to a node fails */
277 void (*node_dead)(struct ctdb_node *);
279 /* node_connected is called when a connection to a node is established */
280 void (*node_connected)(struct ctdb_node *);
283 /* list of message handlers - needs to be changed to a more efficient data
284 structure so we can find a message handler given a srvid quickly */
285 struct ctdb_message_list {
286 struct ctdb_context *ctdb;
287 struct ctdb_message_list *next, *prev;
289 ctdb_message_fn_t message_handler;
290 void *message_private;
293 /* additional data required for the daemon mode */
294 struct ctdb_daemon_data {
297 struct ctdb_queue *queue;
301 ctdb status information
303 struct ctdb_statistics {
304 uint32_t num_clients;
307 uint32_t client_packets_sent;
308 uint32_t client_packets_recv;
309 uint32_t node_packets_sent;
310 uint32_t node_packets_recv;
311 uint32_t keepalive_packets_sent;
312 uint32_t keepalive_packets_recv;
316 uint32_t req_dmaster;
317 uint32_t reply_dmaster;
318 uint32_t reply_error;
319 uint32_t req_message;
320 uint32_t req_control;
321 uint32_t reply_control;
325 uint32_t req_message;
326 uint32_t req_control;
337 uint32_t total_calls;
338 uint32_t pending_calls;
339 uint32_t lockwait_calls;
340 uint32_t pending_lockwait_calls;
341 uint32_t childwrite_calls;
342 uint32_t pending_childwrite_calls;
343 uint32_t memory_used;
344 uint32_t __last_counter; /* hack for control_statistics_all */
345 uint32_t max_hop_count;
346 double max_call_latency;
347 double max_lockwait_latency;
348 double max_childwrite_latency;
352 #define INVALID_GENERATION 1
353 /* table that contains the mapping between a hash value and lmaster
355 struct ctdb_vnn_map {
362 a wire representation of the vnn map
364 struct ctdb_vnn_map_wire {
370 /* a structure that contains the elements required for the write record
373 struct ctdb_write_record {
377 unsigned char blob[1];
380 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
382 #define CTDB_MONITORING_ACTIVE 0
383 #define CTDB_MONITORING_DISABLED 1
385 /* The different capabilities of the ctdb daemon. */
386 #define CTDB_CAP_RECMASTER 0x00000001
387 #define CTDB_CAP_LMASTER 0x00000002
388 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
389 #define CTDB_CAP_LVS 0x00000004
390 /* This capability is set if NATGW is enabled */
391 #define CTDB_CAP_NATGW 0x00000008
393 #define NUM_DB_PRIORITIES 3
394 /* main state of the ctdb daemon */
395 struct ctdb_context {
396 struct event_context *ev;
397 struct timeval ctdbd_start_time;
398 struct timeval last_recovery_started;
399 struct timeval last_recovery_finished;
400 uint32_t recovery_mode;
401 TALLOC_CTX *tickle_update_context;
402 TALLOC_CTX *keepalive_ctx;
403 struct ctdb_tunable tunable;
404 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
405 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
406 bool freeze_transaction_started;
407 uint32_t freeze_transaction_id;
408 struct ctdb_address address;
410 const char *db_directory;
411 const char *db_directory_persistent;
412 const char *db_directory_state;
413 struct tdb_wrap *db_persistent_health;
414 uint32_t db_persistent_startup_generation;
415 uint64_t db_persistent_check_errors;
416 uint64_t max_persistent_check_errors;
417 const char *transport;
418 char *recovery_lock_file;
419 int recovery_lock_fd;
420 uint32_t pnn; /* our own pnn */
422 uint32_t num_connected;
424 uint32_t capabilities;
425 struct idr_context *idr;
427 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
428 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
429 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
430 struct ctdb_iface *ifaces; /* list of local interfaces */
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 /* mapping from pid to ctdb_client * */
471 struct ctdb_client_pid_list *client_pids;
473 /* used in the recovery daemon to remember the ip allocation */
474 struct trbt_tree *ip_tree;
477 struct ctdb_db_context {
478 struct ctdb_db_context *next, *prev;
479 struct ctdb_context *ctdb;
485 struct tdb_wrap *ltdb;
486 struct ctdb_registered_call *calls; /* list of registered calls */
488 struct timed_event *seqnum_update;
489 struct ctdb_traverse_local_handle *traverse;
490 bool transaction_active;
491 struct ctdb_vacuum_handle *vacuum_handle;
492 char *unhealthy_reason;
496 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
497 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
498 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
499 return -1; }} while (0)
501 #define CTDB_NO_MEMORY_VOID(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__); \
506 #define CTDB_NO_MEMORY_NULL(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__); \
509 return NULL; }} while (0)
511 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
512 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
513 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
517 the extended header for records in the ltdb
519 struct ctdb_ltdb_header {
526 enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
527 CTDB_CONTROL_STATISTICS = 1,
529 CTDB_CONTROL_PING = 3,
530 CTDB_CONTROL_GETDBPATH = 4,
531 CTDB_CONTROL_GETVNNMAP = 5,
532 CTDB_CONTROL_SETVNNMAP = 6,
533 CTDB_CONTROL_GET_DEBUG = 7,
534 CTDB_CONTROL_SET_DEBUG = 8,
535 CTDB_CONTROL_GET_DBMAP = 9,
536 CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
537 CTDB_CONTROL_SET_DMASTER = 11,
539 CTDB_CONTROL_PULL_DB = 13,
540 CTDB_CONTROL_PUSH_DB = 14,
541 CTDB_CONTROL_GET_RECMODE = 15,
542 CTDB_CONTROL_SET_RECMODE = 16,
543 CTDB_CONTROL_STATISTICS_RESET = 17,
544 CTDB_CONTROL_DB_ATTACH = 18,
545 CTDB_CONTROL_SET_CALL = 19,
546 CTDB_CONTROL_TRAVERSE_START = 20,
547 CTDB_CONTROL_TRAVERSE_ALL = 21,
548 CTDB_CONTROL_TRAVERSE_DATA = 22,
549 CTDB_CONTROL_REGISTER_SRVID = 23,
550 CTDB_CONTROL_DEREGISTER_SRVID = 24,
551 CTDB_CONTROL_GET_DBNAME = 25,
552 CTDB_CONTROL_ENABLE_SEQNUM = 26,
553 CTDB_CONTROL_UPDATE_SEQNUM = 27,
555 CTDB_CONTROL_DUMP_MEMORY = 29,
556 CTDB_CONTROL_GET_PID = 30,
557 CTDB_CONTROL_GET_RECMASTER = 31,
558 CTDB_CONTROL_SET_RECMASTER = 32,
559 CTDB_CONTROL_FREEZE = 33,
560 CTDB_CONTROL_THAW = 34,
561 CTDB_CONTROL_GET_PNN = 35,
562 CTDB_CONTROL_SHUTDOWN = 36,
563 CTDB_CONTROL_GET_MONMODE = 37,
568 CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */
569 CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */
570 CTDB_CONTROL_TCP_CLIENT = 44,
571 CTDB_CONTROL_TCP_ADD = 45,
572 CTDB_CONTROL_TCP_REMOVE = 46,
573 CTDB_CONTROL_STARTUP = 47,
574 CTDB_CONTROL_SET_TUNABLE = 48,
575 CTDB_CONTROL_GET_TUNABLE = 49,
576 CTDB_CONTROL_LIST_TUNABLES = 50,
577 CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */
578 CTDB_CONTROL_MODIFY_FLAGS = 52,
579 CTDB_CONTROL_GET_ALL_TUNABLES = 53,
580 CTDB_CONTROL_KILL_TCP = 54,
581 CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55,
582 CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56,
583 CTDB_CONTROL_REGISTER_SERVER_ID = 57,
584 CTDB_CONTROL_UNREGISTER_SERVER_ID = 58,
585 CTDB_CONTROL_CHECK_SERVER_ID = 59,
586 CTDB_CONTROL_GET_SERVER_ID_LIST = 60,
587 CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
588 CTDB_CONTROL_PERSISTENT_STORE = 62,
589 CTDB_CONTROL_UPDATE_RECORD = 63,
590 CTDB_CONTROL_SEND_GRATIOUS_ARP = 64,
591 CTDB_CONTROL_TRANSACTION_START = 65,
592 CTDB_CONTROL_TRANSACTION_COMMIT = 66,
593 CTDB_CONTROL_WIPE_DATABASE = 67,
595 CTDB_CONTROL_UPTIME = 69,
596 CTDB_CONTROL_START_RECOVERY = 70,
597 CTDB_CONTROL_END_RECOVERY = 71,
598 CTDB_CONTROL_RELOAD_NODES_FILE = 72,
600 CTDB_CONTROL_TRY_DELETE_RECORDS = 74,
601 CTDB_CONTROL_ENABLE_MONITOR = 75,
602 CTDB_CONTROL_DISABLE_MONITOR = 76,
603 CTDB_CONTROL_ADD_PUBLIC_IP = 77,
604 CTDB_CONTROL_DEL_PUBLIC_IP = 78,
605 CTDB_CONTROL_RUN_EVENTSCRIPTS = 79,
606 CTDB_CONTROL_GET_CAPABILITIES = 80,
607 CTDB_CONTROL_START_PERSISTENT_UPDATE = 81,
608 CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82,
609 CTDB_CONTROL_TRANS2_COMMIT = 83,
610 CTDB_CONTROL_TRANS2_FINISHED = 84,
611 CTDB_CONTROL_TRANS2_ERROR = 85,
612 CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86,
613 CTDB_CONTROL_RECD_PING = 87,
614 CTDB_CONTROL_RELEASE_IP = 88,
615 CTDB_CONTROL_TAKEOVER_IP = 89,
616 CTDB_CONTROL_GET_PUBLIC_IPS = 90,
617 CTDB_CONTROL_GET_NODEMAP = 91,
618 CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96,
619 CTDB_CONTROL_TRAVERSE_KILL = 97,
620 CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98,
621 CTDB_CONTROL_GET_RECLOCK_FILE = 99,
622 CTDB_CONTROL_SET_RECLOCK_FILE = 100,
623 CTDB_CONTROL_STOP_NODE = 101,
624 CTDB_CONTROL_CONTINUE_NODE = 102,
625 CTDB_CONTROL_SET_NATGWSTATE = 103,
626 CTDB_CONTROL_SET_LMASTERROLE = 104,
627 CTDB_CONTROL_SET_RECMASTERROLE = 105,
628 CTDB_CONTROL_ENABLE_SCRIPT = 107,
629 CTDB_CONTROL_DISABLE_SCRIPT = 108,
630 CTDB_CONTROL_SET_BAN_STATE = 109,
631 CTDB_CONTROL_GET_BAN_STATE = 110,
632 CTDB_CONTROL_SET_DB_PRIORITY = 111,
633 CTDB_CONTROL_GET_DB_PRIORITY = 112,
634 CTDB_CONTROL_TRANSACTION_CANCEL = 113,
635 CTDB_CONTROL_REGISTER_NOTIFY = 114,
636 CTDB_CONTROL_DEREGISTER_NOTIFY = 115,
637 CTDB_CONTROL_TRANS2_ACTIVE = 116,
638 CTDB_CONTROL_GET_LOG = 117,
639 CTDB_CONTROL_CLEAR_LOG = 118,
640 CTDB_CONTROL_TRANS3_COMMIT = 119,
641 CTDB_CONTROL_GET_DB_SEQNUM = 120,
642 CTDB_CONTROL_DB_SET_HEALTHY = 121,
643 CTDB_CONTROL_DB_GET_HEALTH = 122,
644 CTDB_CONTROL_GET_PUBLIC_IP_INFO = 123,
645 CTDB_CONTROL_GET_IFACES = 124,
646 CTDB_CONTROL_SET_IFACE_LINK_STATE = 125,
650 structure passed in set_call control
652 struct ctdb_control_set_call {
659 struct for kill_tcp control
661 struct ctdb_control_killtcp {
662 ctdb_sock_addr src_addr;
663 ctdb_sock_addr dst_addr;
667 struct holding a ctdb_sock_addr and an interface name,
668 used to add/remove public addresses
670 struct ctdb_control_ip_iface {
678 struct holding a ctdb_sock_addr and an interface name,
679 used for send_gratious_arp
681 struct ctdb_control_gratious_arp {
689 struct for tcp_add and tcp_remove controls
691 struct ctdb_control_tcp_vnn {
697 persistent store control - update this record on all other nodes
699 struct ctdb_control_persistent_store {
706 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
708 struct ctdb_node_flag_change {
715 struct for admin setting a ban
717 struct ctdb_ban_info {
722 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
724 #define CTDB_LMASTER_ANY 0xffffffff
727 state of a in-progress ctdb call
729 struct ctdb_call_state {
730 struct ctdb_call_state *next, *prev;
731 enum call_state state;
733 struct ctdb_req_call *c;
734 struct ctdb_db_context *ctdb_db;
736 struct ctdb_call *call;
739 void (*fn)(struct ctdb_call_state *);
745 /* used for fetch_lock */
746 struct ctdb_fetch_handle {
747 struct ctdb_db_context *ctdb_db;
750 struct ctdb_ltdb_header header;
756 enum ctdb_operation {
759 CTDB_REQ_DMASTER = 2,
760 CTDB_REPLY_DMASTER = 3,
761 CTDB_REPLY_ERROR = 4,
762 CTDB_REQ_MESSAGE = 5,
764 CTDB_REQ_CONTROL = 7,
765 CTDB_REPLY_CONTROL = 8,
766 CTDB_REQ_KEEPALIVE = 9,
769 #define CTDB_MAGIC 0x43544442 /* CTDB */
770 #define CTDB_VERSION 1
775 struct ctdb_req_header {
778 uint32_t ctdb_version;
786 struct ctdb_req_call {
787 struct ctdb_req_header hdr;
793 uint32_t calldatalen;
794 uint8_t data[1]; /* key[] followed by calldata[] */
797 struct ctdb_reply_call {
798 struct ctdb_req_header hdr;
804 struct ctdb_reply_error {
805 struct ctdb_req_header hdr;
811 struct ctdb_req_dmaster {
812 struct ctdb_req_header hdr;
821 struct ctdb_reply_dmaster {
822 struct ctdb_req_header hdr;
830 struct ctdb_req_message {
831 struct ctdb_req_header hdr;
837 struct ctdb_req_getdbpath {
838 struct ctdb_req_header hdr;
842 struct ctdb_reply_getdbpath {
843 struct ctdb_req_header hdr;
848 struct ctdb_req_control {
849 struct ctdb_req_header hdr;
853 #define CTDB_CTRL_FLAG_NOREPLY 1
854 #define CTDB_CTRL_FLAG_OPCODE_SPECIFIC 0xFFFF0000
860 struct ctdb_reply_control {
861 struct ctdb_req_header hdr;
868 struct ctdb_req_keepalive {
869 struct ctdb_req_header hdr;
873 /* types of failures possible from TRANS2_COMMIT */
874 enum ctdb_trans2_commit_error {
875 CTDB_TRANS2_COMMIT_SUCCESS=0, /* all nodes committed successfully */
876 CTDB_TRANS2_COMMIT_TIMEOUT=1, /* at least one node timed out */
877 CTDB_TRANS2_COMMIT_ALLFAIL=2, /* all nodes failed the commit */
878 CTDB_TRANS2_COMMIT_SOMEFAIL=3 /* some nodes failed the commit, some allowed it */
881 /* internal prototypes */
882 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
883 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
884 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
885 int ctdb_parse_address(struct ctdb_context *ctdb,
886 TALLOC_CTX *mem_ctx, const char *str,
887 struct ctdb_address *address);
888 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
889 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
890 uint32_t ctdb_hash(const TDB_DATA *key);
891 uint32_t ctdb_hash_string(const char *str);
892 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
893 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
894 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
895 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
896 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
897 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
899 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
900 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
901 TDB_DATA key, struct ctdb_ltdb_header *header,
902 TALLOC_CTX *mem_ctx, TDB_DATA *data);
903 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
904 struct ctdb_ltdb_header *header, TDB_DATA data);
905 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
906 struct ctdb_req_control *c,
908 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
909 struct ctdb_req_control *c,
911 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
912 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
913 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
914 TDB_DATA key, struct ctdb_req_header *hdr,
915 void (*recv_pkt)(void *, struct ctdb_req_header *),
916 void *recv_context, bool ignore_generation);
917 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
918 TDB_DATA key, struct ctdb_ltdb_header *header,
919 struct ctdb_req_header *hdr, TDB_DATA *data,
920 void (*recv_pkt)(void *, struct ctdb_req_header *),
921 void *recv_context, bool ignore_generation);
922 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
924 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
925 struct ctdb_call *call,
926 struct ctdb_ltdb_header *header,
930 int ctdbd_start(struct ctdb_context *ctdb);
931 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
932 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
935 queue a packet for sending
937 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
940 setup the fd used by the queue
942 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
945 setup a packet queue on a socket
947 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
948 TALLOC_CTX *mem_ctx, int fd, int alignment,
950 ctdb_queue_cb_fn_t callback,
954 allocate a packet for use in client<->daemon communication
956 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
958 enum ctdb_operation operation,
959 size_t length, size_t slength,
961 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
962 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
964 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
966 enum ctdb_operation operation,
967 size_t length, size_t slength,
969 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
970 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
972 int ctdb_queue_length(struct ctdb_queue *queue);
975 lock a record in the ltdb, given a key
977 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
980 unlock a record in the ltdb, given a key
982 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
986 make a ctdb call to the local daemon - async send. Called from client context.
988 This constructs a ctdb_call request and queues it for processing.
989 This call never blocks.
991 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
992 struct ctdb_call *call);
995 make a recv call to the local ctdb daemon - called from client context
997 This is called when the program wants to wait for a ctdb_call to complete and get the
998 results. This call will block unless the call has already completed.
1000 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
1002 int ctdb_daemon_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid,
1003 ctdb_message_fn_t handler,
1004 void *private_data);
1006 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
1007 uint64_t srvid, TDB_DATA data);
1012 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
1013 uint64_t srvid, TDB_DATA data);
1016 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
1018 void (*callback)(void *), void *private_data);
1020 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
1021 struct ctdb_call *call);
1023 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
1025 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
1026 struct ctdb_call *call,
1027 struct ctdb_ltdb_header *header);
1029 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
1030 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx, TDB_DATA *data,
1033 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
1035 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
1037 int ctdb_socket_connect(struct ctdb_context *ctdb);
1039 void ctdb_latency(struct ctdb_db_context *ctdb_db, const char *name, double *latency, struct timeval t);
1040 void ctdb_reclock_latency(struct ctdb_context *ctdb, const char *name, double *latency, double l);
1042 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
1043 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
1044 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
1046 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1047 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1049 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
1050 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
1052 ctdb_control_callback_fn_t callback,
1053 void *private_data);
1055 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
1056 TDB_DATA *outdata, uint64_t tdb_flags, bool persistent);
1058 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
1059 ctdb_fn_t fn, int id);
1061 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
1062 uint32_t opcode, uint32_t flags, TDB_DATA data,
1063 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
1064 struct timeval *timeout, char **errormsg);
1065 int ctdb_control_recv(struct ctdb_context *ctdb,
1066 struct ctdb_client_control_state *state,
1067 TALLOC_CTX *mem_ctx,
1068 TDB_DATA *outdata, int32_t *status, char **errormsg);
1070 struct ctdb_client_control_state *
1071 ctdb_control_send(struct ctdb_context *ctdb,
1072 uint32_t destnode, uint64_t srvid,
1073 uint32_t opcode, uint32_t flags, TDB_DATA data,
1074 TALLOC_CTX *mem_ctx,
1075 struct timeval *timeout,
1081 #define CHECK_CONTROL_DATA_SIZE(size) do { \
1082 if (indata.dsize != size) { \
1083 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
1084 opcode, (unsigned)indata.dsize, (unsigned)size)); \
1089 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1090 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1091 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1092 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1093 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1094 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1097 struct ctdb_traverse_start {
1104 structure used to pass record data between the child and parent
1106 struct ctdb_rec_data {
1115 /* structure used for pulldb control */
1116 struct ctdb_control_pulldb {
1121 /* structure used for sending lists of records */
1122 struct ctdb_marshall_buffer {
1128 /* set dmaster control structure */
1129 struct ctdb_control_set_dmaster {
1135 structure for setting a tunable
1137 struct ctdb_control_set_tunable {
1144 structure for getting a tunable
1146 struct ctdb_control_get_tunable {
1152 structure for listing tunables
1154 struct ctdb_control_list_tunable {
1156 /* returns a : separated list of tunable names */
1161 /* table that contains a list of all nodes a ctdb knows about and their
1164 struct ctdb_node_and_flags {
1167 ctdb_sock_addr addr;
1170 struct ctdb_node_map {
1172 struct ctdb_node_and_flags nodes[1];
1175 struct ctdb_node_and_flagsv4 {
1178 struct sockaddr_in sin;
1181 struct ctdb_node_mapv4 {
1183 struct ctdb_node_and_flagsv4 nodes[1];
1186 struct ctdb_control_wipe_database {
1188 uint32_t transaction_id;
1192 state of a in-progress ctdb call in client
1194 struct ctdb_client_call_state {
1195 enum call_state state;
1197 struct ctdb_db_context *ctdb_db;
1198 struct ctdb_call *call;
1200 void (*fn)(struct ctdb_client_call_state *);
1206 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1207 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1208 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1209 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1210 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1211 TDB_DATA *outdata, uint32_t srcnode);
1213 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1215 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1216 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1217 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1219 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1220 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1222 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1223 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1225 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1227 struct ctdb_ltdb_header *header,
1228 TDB_DATA *key, TDB_DATA *data);
1230 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1231 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1232 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
1234 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1235 struct ctdb_req_control *c,
1236 TDB_DATA indata, bool *async_reply,
1237 const char **errormsg);
1238 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1239 TDB_DATA *outdata, int32_t status, const char *errormsg);
1241 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1242 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1244 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1245 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1247 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1249 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1250 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1251 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1252 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1253 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1254 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1255 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1256 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1257 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1260 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1261 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1262 void ctdb_node_dead(struct ctdb_node *node);
1263 void ctdb_node_connected(struct ctdb_node *node);
1264 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1265 void ctdb_high_priority(struct ctdb_context *ctdb);
1266 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1267 struct ctdb_req_control *c,
1270 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1271 struct ctdb_req_control *c,
1274 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1275 struct ctdb_req_control *c,
1278 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1279 struct ctdb_req_control *c,
1282 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1283 struct ctdb_req_control *c,
1285 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1286 struct ctdb_req_control *c,
1289 struct ctdb_public_ipv4 {
1291 struct sockaddr_in sin;
1294 struct ctdb_public_ip {
1296 ctdb_sock_addr addr;
1298 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1299 uint32_t destnode, struct ctdb_public_ip *ip);
1300 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1301 uint32_t destnode, struct ctdb_public_ip *ip);
1303 struct ctdb_all_public_ipsv4 {
1305 struct ctdb_public_ipv4 ips[1];
1308 struct ctdb_all_public_ips {
1310 struct ctdb_public_ip ips[1];
1312 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1313 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1314 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1315 struct timeval timeout,
1317 TALLOC_CTX *mem_ctx,
1318 struct ctdb_all_public_ips **ips);
1319 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1320 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1321 struct timeval timeout, uint32_t destnode,
1322 TALLOC_CTX *mem_ctx,
1324 struct ctdb_all_public_ips **ips);
1325 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1326 struct timeval timeout, uint32_t destnode,
1327 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1330 #define CTDB_IFACE_SIZE IFNAMSIZ
1332 #define CTDB_IFACE_SIZE 16
1335 struct ctdb_control_iface_info {
1336 char name[CTDB_IFACE_SIZE+2];
1337 uint16_t link_state;
1338 uint32_t references;
1341 struct ctdb_control_public_ip_info {
1342 struct ctdb_public_ip ip;
1343 uint32_t active_idx;
1345 struct ctdb_control_iface_info ifaces[1];
1348 struct ctdb_control_get_ifaces {
1350 struct ctdb_control_iface_info ifaces[1];
1353 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1354 struct ctdb_req_control *c,
1357 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1358 struct ctdb_req_control *c,
1360 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1361 struct ctdb_req_control *c,
1363 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1364 struct timeval timeout, uint32_t destnode,
1365 TALLOC_CTX *mem_ctx,
1366 const ctdb_sock_addr *addr,
1367 struct ctdb_control_public_ip_info **info);
1368 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1369 struct timeval timeout, uint32_t destnode,
1370 TALLOC_CTX *mem_ctx,
1371 struct ctdb_control_get_ifaces **ifaces);
1372 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1373 struct timeval timeout, uint32_t destnode,
1374 TALLOC_CTX *mem_ctx,
1375 const struct ctdb_control_iface_info *info);
1377 /* from takeover/system.c */
1378 uint32_t uint16_checksum(uint16_t *data, size_t n);
1379 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1380 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1381 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1382 const ctdb_sock_addr *src,
1383 uint32_t seq, uint32_t ack, int rst);
1385 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1386 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1389 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1390 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1391 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1392 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1394 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1396 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata);
1397 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1398 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1399 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1400 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1401 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1402 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1404 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1405 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1406 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1407 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1408 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1409 TALLOC_CTX *mem_ctx,
1410 void (*callback)(struct ctdb_context *, int, void *),
1413 enum ctdb_eventscript_call call,
1414 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1415 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1417 void set_nonblocking(int fd);
1418 void set_close_on_exec(int fd);
1420 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1422 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1424 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1426 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1427 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1428 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1429 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1430 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1432 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1434 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1436 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1437 struct timeval timeout,
1439 struct ctdb_tunable *tunables);
1441 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1443 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1444 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1445 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1446 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1449 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1450 int ctdb_sys_close_capture_socket(void *private_data);
1451 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);
1453 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1454 struct timeval timeout,
1456 struct ctdb_control_killtcp *killtcp);
1458 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1459 struct timeval timeout,
1461 struct ctdb_control_ip_iface *pub);
1463 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1464 struct timeval timeout,
1466 struct ctdb_control_ip_iface *pub);
1468 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1469 struct timeval timeout,
1471 ctdb_sock_addr *addr,
1472 const char *ifname);
1474 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1475 struct timeval timeout,
1477 TALLOC_CTX *mem_ctx,
1478 ctdb_sock_addr *addr,
1479 struct ctdb_control_tcp_tickle_list **list);
1482 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1485 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1487 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1489 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1491 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1494 int ctdb_attach_databases(struct ctdb_context *ctdb);
1496 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1497 struct ctdb_req_control *c,
1498 TDB_DATA recdata, bool *async_reply);
1499 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1500 struct ctdb_req_control *c, TDB_DATA recdata,
1502 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1503 struct ctdb_req_control *c,
1504 TDB_DATA recdata, bool *async_reply);
1506 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1507 struct ctdb_req_control *c,
1508 TDB_DATA recdata, bool *async_reply);
1510 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1511 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1512 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1513 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1514 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1515 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1520 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1521 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1523 void ctdb_block_signal(int signum);
1524 void ctdb_unblock_signal(int signum);
1525 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1526 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1527 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1529 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1531 struct client_async_data {
1532 enum ctdb_controls opcode;
1533 bool dont_log_errors;
1535 uint32_t fail_count;
1536 client_async_callback callback;
1537 client_async_callback fail_callback;
1538 void *callback_data;
1540 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1541 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1542 int ctdb_client_async_control(struct ctdb_context *ctdb,
1543 enum ctdb_controls opcode,
1546 struct timeval timeout,
1547 bool dont_log_errors,
1549 client_async_callback client_callback,
1550 client_async_callback fail_callback,
1551 void *callback_data);
1553 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1555 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1557 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1558 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1560 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1561 struct ctdb_req_control *c);
1562 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1563 struct ctdb_req_control *c);
1564 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1565 struct ctdb_req_control *c,
1568 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1569 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1570 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1572 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1573 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1575 extern int script_log_level;
1577 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1581 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1582 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1584 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1585 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1587 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1589 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1590 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1592 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1593 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1594 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1595 void ctdb_ban_self(struct ctdb_context *ctdb);
1597 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1599 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1601 int start_syslog_daemon(struct ctdb_context *ctdb);
1603 /* Where to send the log messages back to */
1604 struct ctdb_get_log_addr {
1610 extern int log_ringbuf_size;
1612 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1613 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1616 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1617 struct ctdb_context *ctdb,
1618 void (*logfn)(const char *, uint16_t, void *),
1619 void *logfn_private, pid_t *pid);
1621 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1622 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1624 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1628 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1629 struct ctdb_db_context *ctdb_db);
1630 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1631 struct ctdb_db_context *ctdb_db,
1632 const char *reason,/* NULL means healthy */
1633 int num_healthy_nodes);
1634 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1636 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1638 void ctdb_fault_setup(void);
1640 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1641 struct ctdb_all_public_ips *ips);