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Diffstat (limited to 'ctdb/include/ctdb_private.h')
| -rw-r--r-- | ctdb/include/ctdb_private.h | 1502 |
1 files changed, 1502 insertions, 0 deletions
diff --git a/ctdb/include/ctdb_private.h b/ctdb/include/ctdb_private.h new file mode 100644 index 0000000000..0f9da360c6 --- /dev/null +++ b/ctdb/include/ctdb_private.h @@ -0,0 +1,1502 @@ +/* + ctdb database library + + Copyright (C) Andrew Tridgell 2006 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef _CTDB_PRIVATE_H +#define _CTDB_PRIVATE_H + +#include "ctdb_client.h" +#include <sys/socket.h> + +/* + recovery daemon memdump reply address + */ +struct rd_memdump_reply { + uint32_t pnn; + uint64_t srvid; +}; + +/* + description for a TAKEOVER_RUN message reply address + */ +struct takeover_run_reply { + uint32_t pnn; + uint64_t srvid; +}; + +/* + * pid of the ctdbd daemon + */ +extern pid_t ctdbd_pid; + +/* + a tcp connection description + also used by tcp_add and tcp_remove controls + */ +struct ctdb_tcp_connection { + ctdb_sock_addr src_addr; + ctdb_sock_addr dst_addr; +}; + +/* the wire representation for a tcp tickle array */ +struct ctdb_tcp_wire_array { + uint32_t num; + struct ctdb_tcp_connection connections[1]; +}; + +/* the list of tcp tickles used by get/set tcp tickle list */ +struct ctdb_control_tcp_tickle_list { + ctdb_sock_addr addr; + struct ctdb_tcp_wire_array tickles; +}; + +/* + array of tcp connections + */ +struct ctdb_tcp_array { + uint32_t num; + struct ctdb_tcp_connection *connections; +}; + + +/* all tunable variables go in here */ +struct ctdb_tunable { + uint32_t max_redirect_count; + uint32_t seqnum_interval; /* unit is ms */ + uint32_t control_timeout; + uint32_t traverse_timeout; + uint32_t keepalive_interval; + uint32_t keepalive_limit; + uint32_t recover_timeout; + uint32_t recover_interval; + uint32_t election_timeout; + uint32_t takeover_timeout; + uint32_t monitor_interval; + uint32_t tickle_update_interval; + uint32_t script_timeout; + uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */ + uint32_t script_unhealthy_on_timeout; /* obsolete */ + uint32_t recovery_grace_period; + uint32_t recovery_ban_period; + uint32_t database_hash_size; + uint32_t database_max_dead; + uint32_t rerecovery_timeout; + uint32_t enable_bans; + uint32_t deterministic_public_ips; + uint32_t reclock_ping_period; + uint32_t no_ip_failback; + uint32_t disable_ip_failover; + uint32_t verbose_memory_names; + uint32_t recd_ping_timeout; + uint32_t recd_ping_failcount; + uint32_t log_latency_ms; + uint32_t reclock_latency_ms; + uint32_t recovery_drop_all_ips; + uint32_t verify_recovery_lock; + uint32_t vacuum_interval; + uint32_t vacuum_default_interval; + uint32_t vacuum_max_run_time; + uint32_t repack_limit; + uint32_t vacuum_limit; + uint32_t vacuum_min_interval; + uint32_t vacuum_max_interval; + uint32_t max_queue_depth_drop_msg; + uint32_t use_status_events_for_monitoring; + uint32_t allow_unhealthy_db_read; + uint32_t stat_history_interval; + uint32_t deferred_attach_timeout; + uint32_t vacuum_fast_path_count; + uint32_t lcp2_public_ip_assignment; + uint32_t allow_client_db_attach; + uint32_t recover_pdb_by_seqnum; + uint32_t deferred_rebalance_on_node_add; + uint32_t fetch_collapse; + uint32_t max_lacount; + uint32_t hopcount_make_sticky; + uint32_t sticky_duration; + uint32_t sticky_pindown; + uint32_t no_ip_takeover; + uint32_t db_record_count_warn; + uint32_t db_record_size_warn; + uint32_t db_size_warn; + uint32_t pulldb_preallocation_size; +}; + +/* + an installed ctdb remote call +*/ +struct ctdb_registered_call { + struct ctdb_registered_call *next, *prev; + uint32_t id; + ctdb_fn_t fn; +}; + +/* + this address structure might need to be generalised later for some + transports +*/ +struct ctdb_address { + const char *address; + int port; +}; + +/* + check that a pnn is valid + */ +#define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes) + + +/* called from the queue code when a packet comes in. Called with data==NULL + on error */ +typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length, + void *private_data); + +/* used for callbacks in ctdb_control requests */ +typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *, + int32_t status, TDB_DATA data, + const char *errormsg, + void *private_data); +/* + structure describing a connected client in the daemon + */ +struct ctdb_client { + struct ctdb_context *ctdb; + int fd; + struct ctdb_queue *queue; + uint32_t client_id; + pid_t pid; + struct ctdb_tcp_list *tcp_list; + uint32_t db_id; + uint32_t num_persistent_updates; + struct ctdb_client_notify_list *notify; +}; + +struct ctdb_iface; + +/* state associated with a public ip address */ +struct ctdb_vnn { + struct ctdb_vnn *prev, *next; + + struct ctdb_iface *iface; + const char **ifaces; + ctdb_sock_addr public_address; + uint8_t public_netmask_bits; + + /* the node number that is serving this public address, if any. + If no node serves this ip it is set to -1 */ + int32_t pnn; + + /* List of clients to tickle for this public address */ + struct ctdb_tcp_array *tcp_array; + + /* whether we need to update the other nodes with changes to our list + of connected clients */ + bool tcp_update_needed; + + /* a context to hang sending gratious arp events off */ + TALLOC_CTX *takeover_ctx; + + struct ctdb_kill_tcp *killtcp; +}; + +/* + state associated with one node +*/ +struct ctdb_node { + struct ctdb_context *ctdb; + struct ctdb_address address; + const char *name; /* for debug messages */ + void *private_data; /* private to transport */ + uint32_t pnn; + uint32_t flags; + + /* used by the dead node monitoring */ + uint32_t dead_count; + uint32_t rx_cnt; + uint32_t tx_cnt; + + /* used to track node capabilities, is only valid/tracked inside the + recovery daemon. + */ + uint32_t capabilities; + + /* a list of controls pending to this node, so we can time them out quickly + if the node becomes disconnected */ + struct daemon_control_state *pending_controls; + + /* used by the recovery daemon when distributing ip addresses + across the nodes. it needs to know which public ip's can be handled + by each node. + */ + struct ctdb_all_public_ips *known_public_ips; + struct ctdb_all_public_ips *available_public_ips; + /* used by the recovery dameon to track when a node should be banned */ + struct ctdb_banning_state *ban_state; +}; + +/* + transport specific methods +*/ +struct ctdb_methods { + int (*initialise)(struct ctdb_context *); /* initialise transport structures */ + int (*start)(struct ctdb_context *); /* start the transport */ + int (*add_node)(struct ctdb_node *); /* setup a new node */ + int (*connect_node)(struct ctdb_node *); /* connect to node */ + int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length); + void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t ); + void (*shutdown)(struct ctdb_context *); /* shutdown transport */ + void (*restart)(struct ctdb_node *); /* stop and restart the connection */ +}; + +/* + transport calls up to the ctdb layer +*/ +struct ctdb_upcalls { + /* recv_pkt is called when a packet comes in */ + void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length); + + /* node_dead is called when an attempt to send to a node fails */ + void (*node_dead)(struct ctdb_node *); + + /* node_connected is called when a connection to a node is established */ + void (*node_connected)(struct ctdb_node *); +}; + +/* list of message handlers - needs to be changed to a more efficient data + structure so we can find a message handler given a srvid quickly */ +struct ctdb_message_list { + struct ctdb_context *ctdb; + struct ctdb_message_list *next, *prev; + uint64_t srvid; + ctdb_msg_fn_t message_handler; + void *message_private; +}; + +/* additional data required for the daemon mode */ +struct ctdb_daemon_data { + int sd; + char *name; + struct ctdb_queue *queue; +}; + + +#define CTDB_UPDATE_STAT(ctdb, counter, value) \ + { \ + if (value > ctdb->statistics.counter) { \ + ctdb->statistics.counter = c->hopcount; \ + } \ + if (value > ctdb->statistics_current.counter) { \ + ctdb->statistics_current.counter = c->hopcount; \ + } \ + } + +#define CTDB_INCREMENT_STAT(ctdb, counter) \ + { \ + ctdb->statistics.counter++; \ + ctdb->statistics_current.counter++; \ + } + +#define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \ + { \ + ctdb_db->statistics.counter++; \ + } + +#define CTDB_DECREMENT_STAT(ctdb, counter) \ + { \ + if (ctdb->statistics.counter > 0) \ + ctdb->statistics.counter--; \ + if (ctdb->statistics_current.counter > 0) \ + ctdb->statistics_current.counter--; \ + } + +#define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \ + { \ + if (value > ctdb->statistics.counter.max) \ + ctdb->statistics.counter.max = value; \ + if (value > ctdb->statistics_current.counter.max) \ + ctdb->statistics_current.counter.max = value; \ + \ + if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \ + ctdb->statistics.counter.min = value; \ + if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \ + ctdb->statistics_current.counter.min = value; \ + \ + ctdb->statistics.counter.total += value; \ + ctdb->statistics_current.counter.total += value; \ + \ + ctdb->statistics.counter.num++; \ + ctdb->statistics_current.counter.num++; \ + \ + if (ctdb->tunable.reclock_latency_ms != 0) { \ + if (value*1000 > ctdb->tunable.reclock_latency_ms) { \ + DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \ + } \ + } \ + } + + +#define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \ + { \ + double l = timeval_elapsed(&t); \ + \ + if (l > ctdb->statistics.counter.max) \ + ctdb->statistics.counter.max = l; \ + if (l > ctdb->statistics_current.counter.max) \ + ctdb->statistics_current.counter.max = l; \ + \ + if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \ + ctdb->statistics.counter.min = l; \ + if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \ + ctdb->statistics_current.counter.min = l; \ + \ + ctdb->statistics.counter.total += l; \ + ctdb->statistics_current.counter.total += l; \ + \ + ctdb->statistics.counter.num++; \ + ctdb->statistics_current.counter.num++; \ + \ + if (ctdb->tunable.log_latency_ms !=0) { \ + if (l*1000 > ctdb->tunable.log_latency_ms) { \ + DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\ + } \ + } \ + } + + + +/* a structure that contains the elements required for the write record + control +*/ +struct ctdb_write_record { + uint32_t dbid; + uint32_t keylen; + uint32_t datalen; + unsigned char blob[1]; +}; + +enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN}; + +#define CTDB_MONITORING_ACTIVE 0 +#define CTDB_MONITORING_DISABLED 1 + +/* The different capabilities of the ctdb daemon. */ +#define CTDB_CAP_RECMASTER 0x00000001 +#define CTDB_CAP_LMASTER 0x00000002 +/* This capability is set if CTDB_LVS_PUBLIC_IP is set */ +#define CTDB_CAP_LVS 0x00000004 +/* This capability is set if NATGW is enabled */ +#define CTDB_CAP_NATGW 0x00000008 + +#define NUM_DB_PRIORITIES 3 +/* main state of the ctdb daemon */ +struct ctdb_context { + struct tevent_context *ev; + struct timeval ctdbd_start_time; + struct timeval last_recovery_started; + struct timeval last_recovery_finished; + uint32_t recovery_mode; + TALLOC_CTX *tickle_update_context; + TALLOC_CTX *keepalive_ctx; + TALLOC_CTX *check_public_ifaces_ctx; + struct ctdb_tunable tunable; + enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1]; + struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1]; + bool freeze_transaction_started; + uint32_t freeze_transaction_id; + struct ctdb_address address; + const char *name; + const char *db_directory; + const char *db_directory_persistent; + const char *db_directory_state; + struct tdb_wrap *db_persistent_health; + uint32_t db_persistent_startup_generation; + uint64_t db_persistent_check_errors; + uint64_t max_persistent_check_errors; + const char *transport; + char *recovery_lock_file; + int recovery_lock_fd; + uint32_t pnn; /* our own pnn */ + uint32_t num_nodes; + uint32_t num_connected; + unsigned flags; + uint32_t capabilities; + struct idr_context *idr; + int lastid; + struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */ + struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */ + struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */ + struct ctdb_iface *ifaces; /* list of local interfaces */ + char *err_msg; + const struct ctdb_methods *methods; /* transport methods */ + const struct ctdb_upcalls *upcalls; /* transport upcalls */ + void *private_data; /* private to transport */ + struct ctdb_db_context *db_list; + struct ctdb_message_list *message_list; + struct ctdb_daemon_data daemon; + struct ctdb_statistics statistics; + struct ctdb_statistics statistics_current; +#define MAX_STAT_HISTORY 100 + struct ctdb_statistics statistics_history[MAX_STAT_HISTORY]; + struct ctdb_vnn_map *vnn_map; + uint32_t num_clients; + uint32_t recovery_master; + struct ctdb_call_state *pending_calls; + struct ctdb_client_ip *client_ip_list; + bool do_checkpublicip; + struct trbt_tree *server_ids; + bool do_setsched; + void *saved_scheduler_param; + const char *event_script_dir; + const char *debug_hung_script; + const char *notification_script; + const char *default_public_interface; + pid_t ctdbd_pid; + pid_t recoverd_pid; + pid_t syslogd_pid; + bool done_startup; + const char *node_ip; + struct ctdb_monitor_state *monitor; + struct ctdb_log_state *log; + int start_as_disabled; + int start_as_stopped; + bool valgrinding; + uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */ + uint32_t *recd_ping_count; + TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */ + + TALLOC_CTX *event_script_ctx; + + struct ctdb_event_script_state *current_monitor; + struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX]; + + TALLOC_CTX *banning_ctx; + + struct ctdb_vacuum_child_context *vacuumers; + + /* mapping from pid to ctdb_client * */ + struct ctdb_client_pid_list *client_pids; + + /* used in the recovery daemon to remember the ip allocation */ + struct trbt_tree *ip_tree; + + /* Used to defer db attach requests while in recovery mode */ + struct ctdb_deferred_attach_context *deferred_attach; + + /* if we are a child process, do we have a domain socket to send controls on */ + bool can_send_controls; + + /* list of event script callback functions that are active */ + struct event_script_callback *script_callbacks; + + struct ctdb_reloadips_handle *reload_ips; + + const char *public_addresses_file; + struct trbt_tree *child_processes; + TALLOC_CTX *debug_hung_script_ctx; +}; + +struct ctdb_db_context { + struct ctdb_db_context *next, *prev; + struct ctdb_context *ctdb; + uint32_t db_id; + uint32_t priority; + bool persistent; + bool readonly; /* Do we support read-only delegations ? */ + bool sticky; /* Do we support sticky records ? */ + const char *db_name; + const char *db_path; + struct tdb_wrap *ltdb; + struct tdb_context *rottdb; /* ReadOnly tracking TDB */ + struct ctdb_registered_call *calls; /* list of registered calls */ + uint32_t seqnum; + struct timed_event *seqnum_update; + struct ctdb_traverse_local_handle *traverse; + bool transaction_active; + struct ctdb_vacuum_handle *vacuum_handle; + char *unhealthy_reason; + int pending_requests; + struct lockwait_handle *lockwait_active; + struct lockwait_handle *lockwait_overflow; + struct revokechild_handle *revokechild_active; + struct ctdb_persistent_state *persistent_state; + struct trbt_tree *delete_queue; + struct trbt_tree *sticky_records; + int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db, + TDB_DATA key, + struct ctdb_ltdb_header *header, + TDB_DATA data); + + /* used to track which records we are currently fetching + so we can avoid sending duplicate fetch requests + */ + struct trbt_tree *deferred_fetch; + + struct ctdb_db_statistics statistics; +}; + + +#define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \ + DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \ + ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \ + return -1; }} while (0) + +#define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \ + DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \ + ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \ + return; }} while (0) + +#define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \ + DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \ + ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \ + return NULL; }} while (0) + +#define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \ + DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \ + ctdb_fatal(ctdb, "Out of memory in " __location__ ); \ + }} while (0) + +/* + structure passed in set_call control + */ +struct ctdb_control_set_call { + uint32_t db_id; + ctdb_fn_t fn; + uint32_t id; +}; + +/* + struct for kill_tcp control + */ +struct ctdb_control_killtcp { + ctdb_sock_addr src_addr; + ctdb_sock_addr dst_addr; +}; + +/* + struct holding a ctdb_sock_addr and an interface name, + used to add/remove public addresses + */ +struct ctdb_control_ip_iface { + ctdb_sock_addr addr; + uint32_t mask; + uint32_t len; + char iface[1]; +}; + +/* + struct holding a ctdb_sock_addr and an interface name, + used for send_gratious_arp + */ +struct ctdb_control_gratious_arp { + ctdb_sock_addr addr; + uint32_t mask; + uint32_t len; + char iface[1]; +}; + +/* + persistent store control - update this record on all other nodes + */ +struct ctdb_control_persistent_store { + uint32_t db_id; + uint32_t len; + uint8_t data[1]; +}; + +/* + structure used for CTDB_SRVID_NODE_FLAGS_CHANGED + */ +struct ctdb_node_flag_change { + uint32_t pnn; + uint32_t new_flags; + uint32_t old_flags; +}; + +/* + struct for admin setting a ban + */ +struct ctdb_ban_info { + uint32_t pnn; + uint32_t ban_time; +}; + +enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR}; + +#define CTDB_LMASTER_ANY 0xffffffff + +/* + state of a in-progress ctdb call +*/ +struct ctdb_call_state { + struct ctdb_call_state *next, *prev; + enum call_state state; + uint32_t reqid; + struct ctdb_req_call *c; + struct ctdb_db_context *ctdb_db; + const char *errmsg; + struct ctdb_call *call; + uint32_t generation; + struct { + void (*fn)(struct ctdb_call_state *); + void *private_data; + } async; +}; + + +/* used for fetch_lock */ +struct ctdb_fetch_handle { + struct ctdb_db_context *ctdb_db; + TDB_DATA key; + TDB_DATA *data; + struct ctdb_ltdb_header header; +}; + +/* internal prototypes */ +void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3); +void ctdb_fatal(struct ctdb_context *ctdb, const char *msg); +bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2); +int ctdb_parse_address(struct ctdb_context *ctdb, + TALLOC_CTX *mem_ctx, const char *str, + struct ctdb_address *address); +bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2); +bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2); +uint32_t ctdb_hash(const TDB_DATA *key); +uint32_t ctdb_hash_string(const char *str); +void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr); +void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr); +void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr); +void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr); +void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr); +void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr); + +uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key); +int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db, + TDB_DATA key, struct ctdb_ltdb_header *header, + TALLOC_CTX *mem_ctx, TDB_DATA *data); +int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key, + struct ctdb_ltdb_header *header, TDB_DATA data); +int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key); +int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db, + TDB_DATA key, struct ctdb_ltdb_header *header, + TALLOC_CTX *mem_ctx, TDB_DATA *data); +int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA recdata); +int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA recdata); +void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr); +void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode); +int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db, + TDB_DATA key, struct ctdb_req_header *hdr, + void (*recv_pkt)(void *, struct ctdb_req_header *), + void *recv_context, bool ignore_generation); +int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db, + TDB_DATA key, struct ctdb_ltdb_header *header, + struct ctdb_req_header *hdr, TDB_DATA *data, + void (*recv_pkt)(void *, struct ctdb_req_header *), + void *recv_context, bool ignore_generation); +void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *); + +struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db, + struct ctdb_call *call, + struct ctdb_ltdb_header *header, + TDB_DATA *data); + + +int ctdbd_start(struct ctdb_context *ctdb); +struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call); +int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call); + +/* + queue a packet for sending +*/ +int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length); + +/* + setup the fd used by the queue + */ +int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd); + +/* + setup a packet queue on a socket + */ +struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb, + TALLOC_CTX *mem_ctx, int fd, int alignment, + + ctdb_queue_cb_fn_t callback, + void *private_data, const char *fmt, ...) + PRINTF_ATTRIBUTE(7,8); + +/* + allocate a packet for use in client<->daemon communication + */ +struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb, + TALLOC_CTX *mem_ctx, + enum ctdb_operation operation, + size_t length, size_t slength, + const char *type); +#define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \ + (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type) + +struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb, + TALLOC_CTX *mem_ctx, + enum ctdb_operation operation, + size_t length, size_t slength, + const char *type); +#define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \ + (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type) + +int ctdb_queue_length(struct ctdb_queue *queue); + +/* + lock a record in the ltdb, given a key + */ +int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key); + +/* + unlock a record in the ltdb, given a key + */ +int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key); + + +/* + make a ctdb call to the local daemon - async send. Called from client context. + + This constructs a ctdb_call request and queues it for processing. + This call never blocks. +*/ +struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db, + struct ctdb_call *call); + +/* + make a recv call to the local ctdb daemon - called from client context + + This is called when the program wants to wait for a ctdb_call to complete and get the + results. This call will block unless the call has already completed. +*/ +int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call); + +int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn, + uint64_t srvid, TDB_DATA data); + +/* + send a ctdb message +*/ +int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn, + uint64_t srvid, TDB_DATA data); + + +struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db, + TDB_DATA key, + void (*callback)(void *), void *private_data); + +struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db, + struct ctdb_call *call); + +int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call); + +struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db, + struct ctdb_call *call, + struct ctdb_ltdb_header *header); + +int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call, + struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx, + TDB_DATA *data, bool updatetdb, uint32_t caller); + +#define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__) + +void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length); + +int ctdb_socket_connect(struct ctdb_context *ctdb); +void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args); + +#define CTDB_BAD_REQID ((uint32_t)-1) +uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state); +void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location); +void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid); + +void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr); +void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr); + +int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode, + uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags, + TDB_DATA data, + ctdb_control_callback_fn_t callback, + void *private_data); + +int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata, + TDB_DATA *outdata, uint64_t tdb_flags, + bool persistent, uint32_t client_id, + struct ctdb_req_control *c, + bool *async_reply); + +int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id, + ctdb_fn_t fn, int id); + +int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid, + uint32_t opcode, uint32_t flags, TDB_DATA data, + TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status, + struct timeval *timeout, char **errormsg); +int ctdb_control_recv(struct ctdb_context *ctdb, + struct ctdb_client_control_state *state, + TALLOC_CTX *mem_ctx, + TDB_DATA *outdata, int32_t *status, char **errormsg); + +struct ctdb_client_control_state * +ctdb_control_send(struct ctdb_context *ctdb, + uint32_t destnode, uint64_t srvid, + uint32_t opcode, uint32_t flags, TDB_DATA data, + TALLOC_CTX *mem_ctx, + struct timeval *timeout, + char **errormsg); + + + + +#define CHECK_CONTROL_DATA_SIZE(size) do { \ + if (indata.dsize != size) { \ + DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \ + opcode, (unsigned)indata.dsize, (unsigned)size)); \ + return -1; \ + } \ + } while (0) + +#define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \ + if (indata.dsize < size) { \ + DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \ + opcode, (unsigned)indata.dsize, (unsigned)size)); \ + return -1; \ + } \ + } while (0) + +int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata); +int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata); +int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata); +int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata); +int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata); +int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata); + + +/* structure used for pulldb control */ +struct ctdb_control_pulldb { + uint32_t db_id; + uint32_t lmaster; +}; + +/* structure used for sending lists of records */ +struct ctdb_marshall_buffer { + uint32_t db_id; + uint32_t count; + uint8_t data[1]; +}; + +/* set dmaster control structure */ +struct ctdb_control_set_dmaster { + uint32_t db_id; + uint32_t dmaster; +}; + +/* + structure for setting a tunable + */ +struct ctdb_control_set_tunable { + uint32_t value; + uint32_t length; + uint8_t name[1]; +}; + +/* + structure for getting a tunable + */ +struct ctdb_control_get_tunable { + uint32_t length; + uint8_t name[1]; +}; + +/* + structure for listing tunables + */ +struct ctdb_control_list_tunable { + uint32_t length; + /* returns a : separated list of tunable names */ + uint8_t data[1]; +}; + + +struct ctdb_node_and_flagsv4 { + uint32_t pnn; + uint32_t flags; + struct sockaddr_in sin; +}; + +struct ctdb_node_mapv4 { + uint32_t num; + struct ctdb_node_and_flagsv4 nodes[1]; +}; + +struct ctdb_control_wipe_database { + uint32_t db_id; + uint32_t transaction_id; +}; + +/* + state of a in-progress ctdb call in client +*/ +struct ctdb_client_call_state { + enum call_state state; + uint32_t reqid; + struct ctdb_db_context *ctdb_db; + struct ctdb_call *call; + struct { + void (*fn)(struct ctdb_client_call_state *); + void *private_data; + } async; +}; + + +int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb, + TDB_DATA indata, + TDB_DATA *outdata, + uint32_t srcnode, + uint32_t client_id); +int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata, + TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id); +int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata); +int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata); +int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata, + TDB_DATA *outdata, uint32_t srcnode); + +int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data); + +int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid); +int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data); +int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid); +int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata, + TDB_DATA *outdata); + +int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id); +int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode); + +struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid, + TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data); + +struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r, + uint32_t *reqid, + struct ctdb_ltdb_header *header, + TDB_DATA *key, TDB_DATA *data); + +int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata); +int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata); +int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata); + +int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA indata, bool *async_reply, + const char **errormsg); +void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c, + TDB_DATA *outdata, int32_t status, const char *errormsg); + +int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply); +int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority); + +int ctdb_start_recoverd(struct ctdb_context *ctdb); +void ctdb_stop_recoverd(struct ctdb_context *ctdb); + +uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb); + +void ctdb_disable_monitoring(struct ctdb_context *ctdb); +void ctdb_enable_monitoring(struct ctdb_context *ctdb); +void ctdb_stop_monitoring(struct ctdb_context *ctdb); +void ctdb_start_monitoring(struct ctdb_context *ctdb); +void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb); +void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode); +void ctdb_start_keepalive(struct ctdb_context *ctdb); +void ctdb_stop_keepalive(struct ctdb_context *ctdb); +int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply); + + +void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node); +void ctdb_call_resend_all(struct ctdb_context *ctdb); +void ctdb_node_dead(struct ctdb_node *node); +void ctdb_node_connected(struct ctdb_node *node); +bool ctdb_blocking_freeze(struct ctdb_context *ctdb); +void ctdb_set_scheduler(struct ctdb_context *ctdb); +void ctdb_restore_scheduler(struct ctdb_context *ctdb); + +struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb); +pid_t ctdb_fork(struct ctdb_context *ctdb); +int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum); + +int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA indata, + bool *async_reply); +int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA indata, + bool *async_reply); +int32_t ctdb_control_release_ip(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA indata, + bool *async_reply); +int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA indata, + bool *async_reply); +int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + bool *async_reply); +int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + bool *async_reply); + +struct ctdb_public_ipv4 { + uint32_t pnn; + struct sockaddr_in sin; +}; + +int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout, + uint32_t destnode, struct ctdb_public_ip *ip); +int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout, + uint32_t destnode, struct ctdb_public_ip *ip); + +struct ctdb_all_public_ipsv4 { + uint32_t num; + struct ctdb_public_ipv4 ips[1]; +}; + +int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata); +int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata); +int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb, + struct timeval timeout, + uint32_t destnode, + TALLOC_CTX *mem_ctx, + struct ctdb_all_public_ips **ips); +#define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000 +int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb, + struct timeval timeout, uint32_t destnode, + TALLOC_CTX *mem_ctx, + uint32_t flags, + struct ctdb_all_public_ips **ips); +int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb, + struct timeval timeout, uint32_t destnode, + TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips); + +struct ctdb_control_iface_info { + char name[CTDB_IFACE_SIZE+2]; + uint16_t link_state; + uint32_t references; +}; + +struct ctdb_control_public_ip_info { + struct ctdb_public_ip ip; + uint32_t active_idx; + uint32_t num; + struct ctdb_control_iface_info ifaces[1]; +}; + +struct ctdb_control_get_ifaces { + uint32_t num; + struct ctdb_control_iface_info ifaces[1]; +}; + +int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA indata, + TDB_DATA *outdata); +int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA *outdata); +int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA indata); +int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb, + struct timeval timeout, uint32_t destnode, + TALLOC_CTX *mem_ctx, + const ctdb_sock_addr *addr, + struct ctdb_control_public_ip_info **info); +int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb, + struct timeval timeout, uint32_t destnode, + TALLOC_CTX *mem_ctx, + struct ctdb_control_get_ifaces **ifaces); +int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb, + struct timeval timeout, uint32_t destnode, + TALLOC_CTX *mem_ctx, + const struct ctdb_control_iface_info *info); + +/* from takeover/system.c */ +uint32_t uint16_checksum(uint16_t *data, size_t n); +int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface); +bool ctdb_sys_have_ip(ctdb_sock_addr *addr); +char *ctdb_sys_find_ifname(ctdb_sock_addr *addr); +bool ctdb_sys_check_iface_exists(const char *iface); +int ctdb_get_peer_pid(const int fd, pid_t *peer_pid); +int ctdb_sys_send_tcp(const ctdb_sock_addr *dest, + const ctdb_sock_addr *src, + uint32_t seq, uint32_t ack, int rst); + +int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses); +int ctdb_set_single_public_ip(struct ctdb_context *ctdb, + const char *iface, + const char *ip); +int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script); +int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir); +int ctdb_set_debug_hung_script(struct ctdb_context *ctdb, const char *script); +int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script); +void lcp2_forcerebalance(struct ctdb_context *ctdb, uint32_t pnn); +int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap); + +int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id, + TDB_DATA indata); +int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed); +int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata); +int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn); +int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata); +int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata); +int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata); +int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata); + +void ctdb_takeover_client_destructor_hook(struct ctdb_client *client); +int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call); +int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call, + const char *fmt, ...) PRINTF_ATTRIBUTE(3,4); +int ctdb_event_script_callback(struct ctdb_context *ctdb, + TALLOC_CTX *mem_ctx, + void (*callback)(struct ctdb_context *, int, void *), + void *private_data, + bool from_user, + enum ctdb_eventscript_call call, + const char *fmt, ...) PRINTF_ATTRIBUTE(7,8); +void ctdb_release_all_ips(struct ctdb_context *ctdb); + +void set_nonblocking(int fd); +void set_close_on_exec(int fd); + +bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep); + +int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file); + +int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata, + TDB_DATA *outdata); +int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata); +int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata); +int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata); +int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata); +int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata); + +void ctdb_tunables_set_defaults(struct ctdb_context *ctdb); + +int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata); + +int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb, + struct timeval timeout, + uint32_t destnode, + struct ctdb_tunable *tunables); + +int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority); + +bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask); +bool parse_ip_port(const char *s, ctdb_sock_addr *addr); +bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr); +bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin); + + +int ctdb_sys_open_capture_socket(const char *iface, void **private_data); +int ctdb_sys_close_capture_socket(void *private_data); +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); + +int ctdb_ctrl_killtcp(struct ctdb_context *ctdb, + struct timeval timeout, + uint32_t destnode, + struct ctdb_control_killtcp *killtcp); + +int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb, + struct timeval timeout, + uint32_t destnode, + struct ctdb_control_ip_iface *pub); + +int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb, + struct timeval timeout, + uint32_t destnode, + struct ctdb_control_ip_iface *pub); + +int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb, + struct timeval timeout, + uint32_t destnode, + ctdb_sock_addr *addr, + const char *ifname); + +int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb, + struct timeval timeout, + uint32_t destnode, + TALLOC_CTX *mem_ctx, + ctdb_sock_addr *addr, + struct ctdb_control_tcp_tickle_list **list); + + +int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb, + uint32_t client_id, + TDB_DATA indata); +int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb, + TDB_DATA indata); +int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb, + TDB_DATA indata); +int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb, + TDB_DATA *outdata); +int32_t ctdb_control_uptime(struct ctdb_context *ctdb, + TDB_DATA *outdata); + +int ctdb_attach_databases(struct ctdb_context *ctdb); + +int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA recdata, bool *async_reply); +int32_t ctdb_control_update_record(struct ctdb_context *ctdb, + struct ctdb_req_control *c, TDB_DATA recdata, + bool *async_reply); +int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA recdata, bool *async_reply); + +int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA recdata, bool *async_reply); + +void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb); + +int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id); +int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id); +int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb); +int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata); +int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata); +int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb, + TDB_DATA indata, + TDB_DATA *outdata); + + +int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv); +int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv); + +void ctdb_block_signal(int signum); +void ctdb_unblock_signal(int signum); +int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb); +int ctdb_set_child_logging(struct ctdb_context *ctdb); +void ctdb_lockdown_memory(struct ctdb_context *ctdb); + +typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data); + +struct client_async_data { + enum ctdb_controls opcode; + bool dont_log_errors; + uint32_t count; + uint32_t fail_count; + client_async_callback callback; + client_async_callback fail_callback; + void *callback_data; +}; +void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state); +int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data); +int ctdb_client_async_control(struct ctdb_context *ctdb, + enum ctdb_controls opcode, + uint32_t *nodes, + uint64_t srvid, + struct timeval timeout, + bool dont_log_errors, + TDB_DATA data, + client_async_callback client_callback, + client_async_callback fail_callback, + void *callback_data); + +void ctdb_load_nodes_file(struct ctdb_context *ctdb); + +int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode); + +int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata); +int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata); + +int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb, + struct ctdb_req_control *c); +int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb, + struct ctdb_req_control *c); +int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + uint32_t db_id); + +char *ctdb_addr_to_str(ctdb_sock_addr *addr); +unsigned ctdb_addr_to_port(ctdb_sock_addr *addr); +void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip); + +int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb); +int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata); + +extern int script_log_level; +extern bool fast_start; + +int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb, + uint32_t call_type, + TDB_DATA *outdata); + +int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len); +int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency); + +int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply); +int32_t ctdb_control_continue_node(struct ctdb_context *ctdb); + +void ctdb_stop_vacuuming(struct ctdb_context *ctdb); +int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db); + +int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata); +int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata); + +int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb); +int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata); +int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata); +int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata); +void ctdb_ban_self(struct ctdb_context *ctdb); + +int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata); + +int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata); + +int start_syslog_daemon(struct ctdb_context *ctdb); + +/* Where to send the log messages back to */ +struct ctdb_get_log_addr { + uint32_t pnn; + uint64_t srvid; + int32_t level; +}; + +extern int log_ringbuf_size; + +int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr); +int32_t ctdb_control_clear_log(struct ctdb_context *ctdb); + + +struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx, + struct ctdb_context *ctdb, + const char *log_prefix, + void (*logfn)(const char *, uint16_t, void *), + void *logfn_private, pid_t *pid); + +int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid); +struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid); + +int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb, + TDB_DATA indata, + TDB_DATA *outdata); + +int ctdb_load_persistent_health(struct ctdb_context *ctdb, + struct ctdb_db_context *ctdb_db); +int ctdb_update_persistent_health(struct ctdb_context *ctdb, + struct ctdb_db_context *ctdb_db, + const char *reason,/* NULL means healthy */ + int num_healthy_nodes); +int ctdb_recheck_persistent_health(struct ctdb_context *ctdb); + +void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event); + +void ctdb_fault_setup(void); + +int verify_remote_ip_allocation(struct ctdb_context *ctdb, + struct ctdb_all_public_ips *ips); +int update_ip_assignment_tree(struct ctdb_context *ctdb, + struct ctdb_public_ip *ip); + +int ctdb_init_tevent_logging(struct ctdb_context *ctdb); + +int ctdb_statistics_init(struct ctdb_context *ctdb); + +int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb, + struct ctdb_req_control *c, + TDB_DATA *outdata); + +int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb); + +int ctdb_process_deferred_attach(struct ctdb_context *ctdb); + +/** + * structure to pass to a schedule_for_deletion_control + */ +struct ctdb_control_schedule_for_deletion { + uint32_t db_id; + struct ctdb_ltdb_header hdr; + uint32_t keylen; + uint8_t key[1]; /* key[] */ +}; + +int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb, + TDB_DATA indata); + + +int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db, + const struct ctdb_ltdb_header *hdr, + TDB_DATA key); + +void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db, + const struct ctdb_ltdb_header *hdr, + const TDB_DATA key); + +struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h); + +/* For unit testing ctdb_transaction.c. */ +struct ctdb_public_ip_list { + struct ctdb_public_ip_list *next; + uint32_t pnn; + ctdb_sock_addr addr; +}; +int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn); + +typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data); + +void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data); + +int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db, TDB_DATA key, struct ctdb_ltdb_header *header, TDB_DATA data); + +typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr); + +int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db, TDB_DATA key, struct ctdb_req_header *hdr, deferred_requeue_fn fn, void *call_context); + +int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db); + +int ctdb_null_func(struct ctdb_call_info *call); + +int ctdb_fetch_func(struct ctdb_call_info *call); + +int ctdb_fetch_with_header_func(struct ctdb_call_info *call); + +int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb, + uint32_t db_id, + TDB_DATA *outdata); + +int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db); + +/* + description for a message to reload all ips via recovery master/daemon + */ +struct reloadips_all_reply { + uint32_t pnn; + uint64_t srvid; +}; + +int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply); + +int ctdb_start_monitoring_interfaces(struct ctdb_context *ctdb); + +#endif |