/*
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 .
*/
#ifndef _CTDB_PRIVATE_H
#define _CTDB_PRIVATE_H
#include "ctdb_client.h"
#include
/*
* Structures to support SRVID requests and replies
*/
struct srvid_request {
uint32_t pnn;
uint64_t srvid;
};
struct srvid_request_data {
uint32_t pnn;
uint64_t srvid;
uint32_t data;
};
/*
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_max_run_time;
uint32_t repack_limit;
uint32_t vacuum_limit;
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 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;
uint32_t no_ip_host_on_all_disabled;
uint32_t samba3_hack;
uint32_t mutex_enabled;
uint32_t lock_processes_per_db;
};
/*
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;
/* Set to true any time an update to this VNN is in flight.
This helps to avoid races. */
bool update_in_flight;
/* If CTDB_CONTROL_DEL_PUBLIC_IP is received for this IP
* address then this flag is set. It will be deleted in the
* release IP callback. */
bool delete_pending;
};
/*
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_header {
struct ctdb_message_list_header *next, *prev;
struct ctdb_context *ctdb;
uint64_t srvid;
struct ctdb_message_list *m;
};
struct ctdb_message_list {
struct ctdb_message_list *next, *prev;
struct ctdb_message_list_header *h;
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_DECREMENT_STAT(ctdb, counter) \
{ \
if (ctdb->statistics.counter > 0) \
ctdb->statistics.counter--; \
if (ctdb->statistics_current.counter > 0) \
ctdb->statistics_current.counter--; \
}
#define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
{ \
ctdb_db->statistics.counter++; \
}
#define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
{ \
if (ctdb_db->statistics.counter > 0) \
ctdb_db->statistics.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_DB_LATENCY(ctdb_db, operation, counter, value) \
{ \
if (value > ctdb_db->statistics.counter.max) \
ctdb_db->statistics.counter.max = value; \
if (ctdb_db->statistics.counter.num == 0 || \
value < ctdb_db->statistics.counter.min) \
ctdb_db->statistics.counter.min = value; \
\
ctdb_db->statistics.counter.total += value; \
ctdb_db->statistics.counter.num++; \
\
if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
DEBUG(DEBUG_ERR, \
("High latency %.6fs for operation %s on database %s\n",\
value, operation, ctdb_db->db_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};
enum ctdb_runstate {
CTDB_RUNSTATE_UNKNOWN,
CTDB_RUNSTATE_INIT,
CTDB_RUNSTATE_SETUP,
CTDB_RUNSTATE_FIRST_RECOVERY,
CTDB_RUNSTATE_STARTUP,
CTDB_RUNSTATE_RUNNING,
CTDB_RUNSTATE_SHUTDOWN,
};
const char *runstate_to_string(enum ctdb_runstate runstate);
enum ctdb_runstate runstate_from_string(const char *label);
void ctdb_set_runstate(struct ctdb_context *ctdb, enum ctdb_runstate runstate);
void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
#define CTDB_MONITORING_ACTIVE 0
#define CTDB_MONITORING_DISABLED 1
#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_header *message_list_header;
struct tdb_context *message_list_indexdb;
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;
const char *event_script_dir;
const char *notification_script;
const char *default_public_interface;
pid_t ctdbd_pid;
pid_t recoverd_pid;
pid_t syslogd_pid;
enum ctdb_runstate runstate;
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 *recd_ctx; /* a context used to track recoverd monitoring events */
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;
int active_events;
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 *nodes_file;
const char *public_addresses_file;
struct trbt_tree *child_processes;
/* Used for locking record/db/alldb */
struct lock_context *lock_current;
struct lock_context *lock_pending;
};
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;
struct ctdb_vacuum_handle *vacuum_handle;
char *unhealthy_reason;
int pending_requests;
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 trbt_tree *defer_dmaster;
struct ctdb_db_statistics statistics;
struct lock_context *lock_current;
struct lock_context *lock_pending;
int lock_num_current;
};
#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);
void ctdb_die(struct ctdb_context *ctdb, const char *msg);
void ctdb_external_trace(void);
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_key_to_idkey(TALLOC_CTX *mem_ctx, TDB_DATA key);
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 ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork,
bool use_syslog);
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 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);
#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);
int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
uint32_t client_id);
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];
};
/*
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_all_ext(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);
bool ctdb_check_message_handler(struct ctdb_context *ctdb, uint64_t srvid);
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_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,
bool check_recmode);
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_wait_for_first_recovery(struct ctdb_context *ctdb);
int ctdb_tcp_init(struct ctdb_context *ctdb);
int ctdb_ibw_init(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);
bool set_scheduler(void);
void reset_scheduler(void);
struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
void ctdb_track_child(struct ctdb_context *ctdb, pid_t pid);
pid_t ctdb_fork(struct ctdb_context *ctdb);
void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt, ...);
bool ctdb_is_child_process(void);
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_ipreallocated(struct ctdb_context *ctdb,
struct ctdb_req_control *c,
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);
/* Details of a byte range lock */
struct ctdb_lock_info {
ino_t inode;
off_t start, end;
bool waiting;
bool read_only;
};
char *ctdb_get_process_name(pid_t pid);
int ctdb_set_process_name(const char *name);
bool ctdb_get_lock_info(pid_t req_pid, struct ctdb_lock_info *lock_info);
bool ctdb_get_blocker_pid(struct ctdb_lock_info *reqlock, pid_t *blocker_pid);
typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
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_notification_script(struct ctdb_context *ctdb, const char *script);
int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap,
uint32_t *force_rebalance_nodes,
client_async_callback fail_callback, void *callback_data);
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,
enum ctdb_eventscript_call call,
const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
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_receive_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,
struct ctdb_req_control *c,
TDB_DATA recdata, bool *async_reply);
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);
void 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);
int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
int ctdb_set_child_logging(struct ctdb_context *ctdb);
void lockdown_memory(bool valgrinding);
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;
extern const char *ctdbd_pidfile;
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);
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);
void 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,
uint32_t client_id);
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;
};
struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
struct ctdb_context *ctdb,
const char *log_prefix,
const char *helper,
int helper_argc,
const char **helper_argv,
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);
int verify_remote_ip_allocation(struct ctdb_context *ctdb,
struct ctdb_all_public_ips *ips,
uint32_t pnn);
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);
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);
/* from server/ctdb_lock.c */
struct lock_request;
int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
struct lock_request *ctdb_lock_record(TALLOC_CTX *mem_ctx,
struct ctdb_db_context *ctdb_db,
TDB_DATA key,
bool auto_mark,
void (*callback)(void *, bool),
void *private_data);
struct lock_request *ctdb_lock_db(TALLOC_CTX *mem_ctx,
struct ctdb_db_context *ctdb_db,
bool auto_mark,
void (*callback)(void *, bool),
void *private_data);
struct lock_request *ctdb_lock_alldb_prio(TALLOC_CTX *mem_ctx,
struct ctdb_context *ctdb,
uint32_t priority,
bool auto_mark,
void (*callback)(void *, bool),
void *private_data);
struct lock_request *ctdb_lock_alldb(TALLOC_CTX *mem_ctx,
struct ctdb_context *ctdb,
bool auto_mark,
void (*callback)(void *, bool),
void *private_data);
int mkdir_p(const char *dir, int mode);
void mkdir_p_or_die(const char *dir, int mode);
ssize_t sys_read(int fd, void *buf, size_t count);
ssize_t sys_write(int fd, const void *buf, size_t count);
#endif