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protocol.h
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/*
CTDB protocol marshalling
Copyright (C) Amitay Isaacs 2015
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_PROTOCOL_H__
#define __CTDB_PROTOCOL_H__
#include <tdb.h>
#define CTDB_MAGIC 0x43544442 /* CTDB */
#define CTDB_PROTOCOL 1
enum ctdb_operation {
CTDB_REQ_CALL = 0,
CTDB_REPLY_CALL = 1,
CTDB_REQ_DMASTER = 2,
CTDB_REPLY_DMASTER = 3,
CTDB_REPLY_ERROR = 4,
CTDB_REQ_MESSAGE = 5,
/* #6 removed */
CTDB_REQ_CONTROL = 7,
CTDB_REPLY_CONTROL = 8,
CTDB_REQ_KEEPALIVE = 9,
CTDB_REQ_TUNNEL = 10,
};
/* used on the domain socket, send a pdu to the local daemon */
#define CTDB_CURRENT_NODE 0xF0000001
/* send a broadcast to all nodes in the cluster, active or not */
#define CTDB_BROADCAST_ALL 0xF0000002
/* send a broadcast to all nodes in the current vnn map */
#define CTDB_BROADCAST_ACTIVE 0xF0000003
/* send a broadcast to all connected nodes */
#define CTDB_BROADCAST_CONNECTED 0xF0000004
/* send a broadcast to selected connected nodes */
#define CTDB_MULTICAST 0xF0000005
#define CTDB_UNKNOWN_PNN 0xFFFFFFFF
/* the key used to store persistent db sequence number */
#define CTDB_DB_SEQNUM_KEY "__db_sequence_number__"
struct ctdb_req_header {
uint32_t length;
uint32_t ctdb_magic;
uint32_t ctdb_version;
uint32_t generation;
uint32_t operation;
uint32_t destnode;
uint32_t srcnode;
uint32_t reqid;
};
struct ctdb_req_call {
uint32_t flags;
uint32_t db_id;
uint32_t callid;
uint32_t hopcount;
TDB_DATA key;
TDB_DATA calldata;
};
struct ctdb_reply_call {
int32_t status;
TDB_DATA data;
};
struct ctdb_reply_error {
int32_t status;
TDB_DATA msg;
};
struct ctdb_req_dmaster {
uint32_t db_id;
uint64_t rsn;
uint32_t dmaster;
TDB_DATA key;
TDB_DATA data;
};
struct ctdb_reply_dmaster {
uint32_t db_id;
uint64_t rsn;
TDB_DATA key;
TDB_DATA data;
};
#define CTDB_NULL_FUNC 0xFF000001
#define CTDB_FETCH_FUNC 0xFF000002
#define CTDB_FETCH_WITH_HEADER_FUNC 0xFF000003
struct ctdb_call {
int call_id;
TDB_DATA key;
TDB_DATA call_data;
TDB_DATA reply_data;
uint32_t status;
#define CTDB_IMMEDIATE_MIGRATION 0x00000001
#define CTDB_CALL_FLAG_VACUUM_MIGRATION 0x00000002
#define CTDB_WANT_READONLY 0x00000004
uint32_t flags;
};
/* SRVID to catch all messages */
#define CTDB_SRVID_ALL (~(uint64_t)0)
/* SRVID prefix used during recovery for pulling and pushing databases */
#define CTDB_SRVID_RECOVERY 0xF001000000000000LL
/* SRVID to assign of banning credits */
#define CTDB_SRVID_BANNING 0xF002000000000000LL
/* SRVID to inform of election data */
#define CTDB_SRVID_ELECTION 0xF100000000000000LL
/* SRVID to inform clients that the cluster has been reconfigured */
#define CTDB_SRVID_RECONFIGURE 0xF200000000000000LL
/* SRVID to inform clients an IP address has been released */
#define CTDB_SRVID_RELEASE_IP 0xF300000000000000LL
/* SRVID to inform clients that an IP address has been taken over */
#define CTDB_SRVID_TAKE_IP 0xF301000000000000LL
/* SRVID to inform recovery daemon of the node flags */
#define CTDB_SRVID_SET_NODE_FLAGS 0xF400000000000000LL
/* SRVID to inform recovery daemon to update public ip assignment */
#define CTDB_SRVID_RECD_UPDATE_IP 0xF500000000000000LL
/* SRVID to inform recovery daemon to migrate a set of records */
#define CTDB_SRVID_VACUUM_FETCH 0xF700000000000000LL
/* SRVID to inform recovery daemon to detach a database */
#define CTDB_SRVID_DETACH_DATABASE 0xF701000000000000LL
/* SRVID to inform recovery daemon to dump talloc memdump to the log */
#define CTDB_SRVID_MEM_DUMP 0xF800000000000000LL
/* SRVID to inform recovery daemon to send logs */
#define CTDB_SRVID_GETLOG 0xF801000000000000LL
/* SRVID to inform recovery daemon to clear logs */
#define CTDB_SRVID_CLEARLOG 0xF802000000000000LL
/* SRVID to inform recovery daemon to push the node flags to other nodes */
#define CTDB_SRVID_PUSH_NODE_FLAGS 0xF900000000000000LL
/* SRVID to inform recovery daemon to reload the nodes file */
#define CTDB_SRVID_RELOAD_NODES 0xFA00000000000000LL
/* SRVID to inform recovery daemon to perform a takeover run */
#define CTDB_SRVID_TAKEOVER_RUN 0xFB00000000000000LL
/* SRVID to inform recovery daemon to rebalance ips for a node. */
#define CTDB_SRVID_REBALANCE_NODE 0xFB01000000000000LL
/* SRVID to inform recovery daemon to stop takeover runs from occurring */
#define CTDB_SRVID_DISABLE_TAKEOVER_RUNS 0xFB03000000000000LL
/* SRVID to inform recovery daemon to stop recoveries from occurring */
#define CTDB_SRVID_DISABLE_RECOVERIES 0xFB04000000000000LL
/* SRVID to inform recovery daemon to disable the public ip checks */
#define CTDB_SRVID_DISABLE_IP_CHECK 0xFC00000000000000LL
/* A range of ports reserved for registering a PID (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* registering a SRVID that matches the process-id of the requesting process
*/
#define CTDB_SRVID_PID_RANGE 0x0000000000000000LL
/* A range of ports reserved for samba (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* CIFS server
*/
#define CTDB_SRVID_SAMBA_NOTIFY 0xFE00000000000000LL
#define CTDB_SRVID_SAMBA_RANGE 0xFE00000000000000LL
/* A range of ports reserved for a CTDB NFS server (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* NFS server
*/
#define CTDB_SRVID_NFSD_RANGE 0xEE00000000000000LL
/* A range of ports reserved for a CTDB ISCSI server (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* ISCSI server
*/
#define CTDB_SRVID_ISCSID_RANGE 0xDE00000000000000LL
/* A range of ports reserved for CTDB tool (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* CTDB tool
*/
#define CTDB_SRVID_TOOL_RANGE 0xCE00000000000000LL
/* A range of ports reserved by client (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* CTDB client code
*/
#define CTDB_SRVID_CLIENT_RANGE 0xBE00000000000000LL
/* Range of ports reserved for test applications (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* test applications
*/
#define CTDB_SRVID_TEST_RANGE 0xAE00000000000000LL
enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
CTDB_CONTROL_STATISTICS = 1,
/* #2 removed */
CTDB_CONTROL_PING = 3,
CTDB_CONTROL_GETDBPATH = 4,
CTDB_CONTROL_GETVNNMAP = 5,
CTDB_CONTROL_SETVNNMAP = 6,
CTDB_CONTROL_GET_DEBUG = 7,
CTDB_CONTROL_SET_DEBUG = 8,
CTDB_CONTROL_GET_DBMAP = 9,
CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
CTDB_CONTROL_SET_DMASTER = 11, /* obsolete */
/* #12 removed */
CTDB_CONTROL_PULL_DB = 13,
CTDB_CONTROL_PUSH_DB = 14,
CTDB_CONTROL_GET_RECMODE = 15,
CTDB_CONTROL_SET_RECMODE = 16,
CTDB_CONTROL_STATISTICS_RESET = 17,
CTDB_CONTROL_DB_ATTACH = 18,
CTDB_CONTROL_SET_CALL = 19, /* obsolete */
CTDB_CONTROL_TRAVERSE_START = 20,
CTDB_CONTROL_TRAVERSE_ALL = 21,
CTDB_CONTROL_TRAVERSE_DATA = 22,
CTDB_CONTROL_REGISTER_SRVID = 23,
CTDB_CONTROL_DEREGISTER_SRVID = 24,
CTDB_CONTROL_GET_DBNAME = 25,
CTDB_CONTROL_ENABLE_SEQNUM = 26,
CTDB_CONTROL_UPDATE_SEQNUM = 27,
/* #28 removed */
CTDB_CONTROL_DUMP_MEMORY = 29,
CTDB_CONTROL_GET_PID = 30,
CTDB_CONTROL_GET_RECMASTER = 31,
CTDB_CONTROL_SET_RECMASTER = 32,
CTDB_CONTROL_FREEZE = 33,
CTDB_CONTROL_THAW = 34, /* obsolete */
CTDB_CONTROL_GET_PNN = 35,
CTDB_CONTROL_SHUTDOWN = 36,
CTDB_CONTROL_GET_MONMODE = 37, /* obsolete */
/* #38 removed */
/* #39 removed */
/* #40 removed */
/* #41 removed */
CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */
CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */
CTDB_CONTROL_TCP_CLIENT = 44,
CTDB_CONTROL_TCP_ADD = 45,
CTDB_CONTROL_TCP_REMOVE = 46,
CTDB_CONTROL_STARTUP = 47,
CTDB_CONTROL_SET_TUNABLE = 48,
CTDB_CONTROL_GET_TUNABLE = 49,
CTDB_CONTROL_LIST_TUNABLES = 50,
CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */
CTDB_CONTROL_MODIFY_FLAGS = 52,
CTDB_CONTROL_GET_ALL_TUNABLES = 53,
CTDB_CONTROL_KILL_TCP = 54, /* obsolete */
CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55,
CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56,
CTDB_CONTROL_REGISTER_SERVER_ID = 57, /* obsolete */
CTDB_CONTROL_UNREGISTER_SERVER_ID = 58, /* obsolete */
CTDB_CONTROL_CHECK_SERVER_ID = 59, /* obsolete */
CTDB_CONTROL_GET_SERVER_ID_LIST = 60, /* obsolete */
CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
CTDB_CONTROL_PERSISTENT_STORE = 62, /* obsolete */
CTDB_CONTROL_UPDATE_RECORD = 63,
CTDB_CONTROL_SEND_GRATUITOUS_ARP = 64,
CTDB_CONTROL_TRANSACTION_START = 65, /* obsolete */
CTDB_CONTROL_TRANSACTION_COMMIT = 66, /* obsolete */
CTDB_CONTROL_WIPE_DATABASE = 67,
/* #68 removed */
CTDB_CONTROL_UPTIME = 69,
CTDB_CONTROL_START_RECOVERY = 70,
CTDB_CONTROL_END_RECOVERY = 71,
CTDB_CONTROL_RELOAD_NODES_FILE = 72,
/* #73 removed */
CTDB_CONTROL_TRY_DELETE_RECORDS = 74,
CTDB_CONTROL_ENABLE_MONITOR = 75, /* obsolete */
CTDB_CONTROL_DISABLE_MONITOR = 76, /* obsolete */
CTDB_CONTROL_ADD_PUBLIC_IP = 77,
CTDB_CONTROL_DEL_PUBLIC_IP = 78,
CTDB_CONTROL_RUN_EVENTSCRIPTS = 79, /* obsolete */
CTDB_CONTROL_GET_CAPABILITIES = 80,
CTDB_CONTROL_START_PERSISTENT_UPDATE = 81, /* obsolete */
CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82, /* obsolete */
CTDB_CONTROL_TRANS2_COMMIT = 83, /* obsolete */
CTDB_CONTROL_TRANS2_FINISHED = 84, /* obsolete */
CTDB_CONTROL_TRANS2_ERROR = 85, /* obsolete */
CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86, /* obsolete */
CTDB_CONTROL_RECD_PING = 87,
CTDB_CONTROL_RELEASE_IP = 88,
CTDB_CONTROL_TAKEOVER_IP = 89,
CTDB_CONTROL_GET_PUBLIC_IPS = 90,
CTDB_CONTROL_GET_NODEMAP = 91,
/* missing */
CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96, /* obsolete */
CTDB_CONTROL_TRAVERSE_KILL = 97,
CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98,
CTDB_CONTROL_GET_RECLOCK_FILE = 99,
CTDB_CONTROL_SET_RECLOCK_FILE = 100, /* obsolete */
CTDB_CONTROL_STOP_NODE = 101,
CTDB_CONTROL_CONTINUE_NODE = 102,
CTDB_CONTROL_SET_NATGWSTATE = 103, /* obsolete */
CTDB_CONTROL_SET_LMASTERROLE = 104,
CTDB_CONTROL_SET_RECMASTERROLE = 105,
CTDB_CONTROL_ENABLE_SCRIPT = 107, /* obsolete */
CTDB_CONTROL_DISABLE_SCRIPT = 108, /* obsolete */
CTDB_CONTROL_SET_BAN_STATE = 109,
CTDB_CONTROL_GET_BAN_STATE = 110,
CTDB_CONTROL_SET_DB_PRIORITY = 111, /* obsolete */
CTDB_CONTROL_GET_DB_PRIORITY = 112, /* obsolete */
CTDB_CONTROL_TRANSACTION_CANCEL = 113, /* obsolete */
CTDB_CONTROL_REGISTER_NOTIFY = 114,
CTDB_CONTROL_DEREGISTER_NOTIFY = 115,
CTDB_CONTROL_TRANS2_ACTIVE = 116, /* obsolete */
CTDB_CONTROL_GET_LOG = 117, /* obsolete */
CTDB_CONTROL_CLEAR_LOG = 118, /* obsolete */
CTDB_CONTROL_TRANS3_COMMIT = 119,
CTDB_CONTROL_GET_DB_SEQNUM = 120,
CTDB_CONTROL_DB_SET_HEALTHY = 121,
CTDB_CONTROL_DB_GET_HEALTH = 122,
CTDB_CONTROL_GET_PUBLIC_IP_INFO = 123,
CTDB_CONTROL_GET_IFACES = 124,
CTDB_CONTROL_SET_IFACE_LINK_STATE = 125,
CTDB_CONTROL_TCP_ADD_DELAYED_UPDATE = 126,
CTDB_CONTROL_GET_STAT_HISTORY = 127,
CTDB_CONTROL_SCHEDULE_FOR_DELETION = 128,
CTDB_CONTROL_SET_DB_READONLY = 129,
CTDB_CONTROL_CHECK_SRVIDS = 130, /* obsolete */
CTDB_CONTROL_TRAVERSE_START_EXT = 131,
CTDB_CONTROL_GET_DB_STATISTICS = 132,
CTDB_CONTROL_SET_DB_STICKY = 133,
CTDB_CONTROL_RELOAD_PUBLIC_IPS = 134,
CTDB_CONTROL_TRAVERSE_ALL_EXT = 135,
CTDB_CONTROL_RECEIVE_RECORDS = 136, /* obsolete */
CTDB_CONTROL_IPREALLOCATED = 137,
CTDB_CONTROL_GET_RUNSTATE = 138,
CTDB_CONTROL_DB_DETACH = 139,
CTDB_CONTROL_GET_NODES_FILE = 140,
CTDB_CONTROL_DB_FREEZE = 141,
CTDB_CONTROL_DB_THAW = 142,
CTDB_CONTROL_DB_TRANSACTION_START = 143,
CTDB_CONTROL_DB_TRANSACTION_COMMIT = 144,
CTDB_CONTROL_DB_TRANSACTION_CANCEL = 145,
CTDB_CONTROL_DB_PULL = 146,
CTDB_CONTROL_DB_PUSH_START = 147,
CTDB_CONTROL_DB_PUSH_CONFIRM = 148,
CTDB_CONTROL_DB_OPEN_FLAGS = 149,
CTDB_CONTROL_DB_ATTACH_REPLICATED = 150,
CTDB_CONTROL_CHECK_PID_SRVID = 151,
CTDB_CONTROL_TUNNEL_REGISTER = 152,
CTDB_CONTROL_TUNNEL_DEREGISTER = 153,
CTDB_CONTROL_VACUUM_FETCH = 154,
CTDB_CONTROL_DB_VACUUM = 155,
};
#define MAX_COUNT_BUCKETS 16
#define MAX_HOT_KEYS 10
struct ctdb_latency_counter {
int num;
double min;
double max;
double total;
};
struct ctdb_statistics {
uint32_t num_clients;
uint32_t frozen;
uint32_t recovering;
uint32_t client_packets_sent;
uint32_t client_packets_recv;
uint32_t node_packets_sent;
uint32_t node_packets_recv;
uint32_t keepalive_packets_sent;
uint32_t keepalive_packets_recv;
struct {
uint32_t req_call;
uint32_t reply_call;
uint32_t req_dmaster;
uint32_t reply_dmaster;
uint32_t reply_error;
uint32_t req_message;
uint32_t req_control;
uint32_t reply_control;
uint32_t req_tunnel;
} node;
struct {
uint32_t req_call;
uint32_t req_message;
uint32_t req_control;
uint32_t req_tunnel;
} client;
struct {
uint32_t call;
uint32_t control;
uint32_t traverse;
} timeouts;
struct {
struct ctdb_latency_counter ctdbd;
struct ctdb_latency_counter recd;
} reclock;
struct {
uint32_t num_calls;
uint32_t num_current;
uint32_t num_pending;
uint32_t num_failed;
struct ctdb_latency_counter latency;
uint32_t buckets[MAX_COUNT_BUCKETS];
} locks;
uint32_t total_calls;
uint32_t pending_calls;
uint32_t childwrite_calls;
uint32_t pending_childwrite_calls;
uint32_t memory_used;
uint32_t __last_counter; /* hack */
uint32_t max_hop_count;
uint32_t hop_count_bucket[MAX_COUNT_BUCKETS];
struct ctdb_latency_counter call_latency;
struct ctdb_latency_counter childwrite_latency;
uint32_t num_recoveries;
struct timeval statistics_start_time;
struct timeval statistics_current_time;
uint32_t total_ro_delegations;
uint32_t total_ro_revokes;
};
#define INVALID_GENERATION 1
/* table that contains the mapping between a hash value and lmaster
*/
struct ctdb_vnn_map {
uint32_t generation;
uint32_t size;
uint32_t *map;
};
struct ctdb_dbid {
uint32_t db_id;
#define CTDB_DB_FLAGS_PERSISTENT 0x01
#define CTDB_DB_FLAGS_READONLY 0x02
#define CTDB_DB_FLAGS_STICKY 0x04
#define CTDB_DB_FLAGS_REPLICATED 0x08
uint8_t flags;
};
struct ctdb_dbid_map {
uint32_t num;
struct ctdb_dbid *dbs;
};
struct ctdb_pulldb {
uint32_t db_id;
#define CTDB_LMASTER_ANY 0xffffffff
uint32_t lmaster;
};
struct ctdb_pulldb_ext {
uint32_t db_id;
uint32_t lmaster;
uint64_t srvid;
};
#define CTDB_RECOVERY_NORMAL 0
#define CTDB_RECOVERY_ACTIVE 1
/*
the extended header for records in the ltdb
*/
struct ctdb_ltdb_header {
uint64_t rsn;
uint32_t dmaster;
uint32_t reserved1;
#define CTDB_REC_FLAG_DEFAULT 0x00000000
#define CTDB_REC_FLAG_MIGRATED_WITH_DATA 0x00010000
#define CTDB_REC_FLAG_VACUUM_MIGRATED 0x00020000
#define CTDB_REC_FLAG_AUTOMATIC 0x00040000
#define CTDB_REC_RO_HAVE_DELEGATIONS 0x01000000
#define CTDB_REC_RO_HAVE_READONLY 0x02000000
#define CTDB_REC_RO_REVOKING_READONLY 0x04000000
#define CTDB_REC_RO_REVOKE_COMPLETE 0x08000000
#define CTDB_REC_RO_FLAGS (CTDB_REC_RO_HAVE_DELEGATIONS|\
CTDB_REC_RO_HAVE_READONLY|\
CTDB_REC_RO_REVOKING_READONLY|\
CTDB_REC_RO_REVOKE_COMPLETE)
uint32_t flags;
};
struct ctdb_rec_data {
uint32_t reqid;
struct ctdb_ltdb_header *header;
TDB_DATA key, data;
};
struct ctdb_rec_buffer {
uint32_t db_id;
uint32_t count;
uint8_t *buf;
size_t buflen;
};
typedef int (*ctdb_rec_parser_func_t)(uint32_t reqid,
struct ctdb_ltdb_header *header,
TDB_DATA key, TDB_DATA data,
void *private_data);
struct ctdb_traverse_start {
uint32_t db_id;
uint32_t reqid;
uint64_t srvid;
};
struct ctdb_traverse_all {
uint32_t db_id;
uint32_t reqid;
uint32_t pnn;
uint32_t client_reqid;
uint64_t srvid;
};
struct ctdb_traverse_start_ext {
uint32_t db_id;
uint32_t reqid;
uint64_t srvid;
bool withemptyrecords;
};
struct ctdb_traverse_all_ext {
uint32_t db_id;
uint32_t reqid;
uint32_t pnn;
uint32_t client_reqid;
uint64_t srvid;
bool withemptyrecords;
};
typedef union {
struct sockaddr sa;
struct sockaddr_in ip;
struct sockaddr_in6 ip6;
} ctdb_sock_addr;
struct ctdb_connection {
union {
ctdb_sock_addr src;
ctdb_sock_addr server;
};
union {
ctdb_sock_addr dst;
ctdb_sock_addr client;
};
};
struct ctdb_connection_list {
uint32_t num;
struct ctdb_connection *conn;
};
struct ctdb_tunable {
const char *name;
uint32_t value;
};
struct ctdb_var_list {
int count;
const char **var;
};
struct ctdb_node_flag_change {
uint32_t pnn;
uint32_t new_flags;
uint32_t old_flags;
};
/* all tunable variables go in here */
struct ctdb_tunable_list {
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 monitor_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 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;
uint32_t rec_buffer_size_limit;
uint32_t queue_buffer_size;
uint32_t ip_alloc_algorithm;
uint32_t allow_mixed_versions;
};
struct ctdb_tickle_list {
ctdb_sock_addr addr;
uint32_t num;
struct ctdb_connection *conn;
};
struct ctdb_addr_info {
ctdb_sock_addr addr;
uint32_t mask;
const char *iface;
};
struct ctdb_transdb {
uint32_t db_id;
uint32_t tid;
};
struct ctdb_uptime {
struct timeval current_time;
struct timeval ctdbd_start_time;
struct timeval last_recovery_started;
struct timeval last_recovery_finished;
};
struct ctdb_public_ip {
uint32_t pnn;
ctdb_sock_addr addr;
};
struct ctdb_public_ip_list {
uint32_t num;
struct ctdb_public_ip *ip;
};
/*
* Node flags
*/
#define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
#define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
#define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
#define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
#define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
#define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
#define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
#define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
/*
* Node capabilities
*/
#define CTDB_CAP_RECMASTER 0x00000001
#define CTDB_CAP_LMASTER 0x00000002
#define CTDB_CAP_LVS 0x00000004 /* obsolete */
#define CTDB_CAP_NATGW 0x00000008 /* obsolete */
/*
* Node features
*/
#define CTDB_CAP_PARALLEL_RECOVERY 0x00010000
#define CTDB_CAP_FRAGMENTED_CONTROLS 0x00020000
#define CTDB_CAP_FEATURES (CTDB_CAP_PARALLEL_RECOVERY | \
CTDB_CAP_FRAGMENTED_CONTROLS)
#define CTDB_CAP_DEFAULT (CTDB_CAP_RECMASTER | \
CTDB_CAP_LMASTER | \
CTDB_CAP_FEATURES)
struct ctdb_node_and_flags {
uint32_t pnn;
uint32_t flags;
ctdb_sock_addr addr;
};
struct ctdb_node_map {
uint32_t num;
struct ctdb_node_and_flags *node;
};
enum ctdb_event {
CTDB_EVENT_INIT, /* CTDB starting up: no args */
CTDB_EVENT_SETUP, /* CTDB starting up after transport is readdy: no args. */
CTDB_EVENT_STARTUP, /* CTDB starting up after initial recovery: no args. */
CTDB_EVENT_START_RECOVERY, /* CTDB recovery starting: no args. */
CTDB_EVENT_RECOVERED, /* CTDB recovery finished: no args. */
CTDB_EVENT_TAKE_IP, /* IP taken: interface, IP address, netmask bits. */
CTDB_EVENT_RELEASE_IP, /* IP released: interface, IP address, netmask bits. */
CTDB_EVENT_STOPPED, /* Deprecated, do not use. */
CTDB_EVENT_MONITOR, /* Please check if service is healthy: no args. */
CTDB_EVENT_STATUS, /* Deprecated, do not use. */
CTDB_EVENT_SHUTDOWN, /* CTDB shutting down: no args. */
CTDB_EVENT_RELOAD, /* Deprecated, do not use */
CTDB_EVENT_UPDATE_IP, /* IP updating: old interface, new interface, IP address, netmask bits. */
CTDB_EVENT_IPREALLOCATED, /* when a takeover_run() completes */
CTDB_EVENT_MAX
};
#define MAX_SCRIPT_NAME 31
#define MAX_SCRIPT_OUTPUT 511
struct ctdb_script {
char name[MAX_SCRIPT_NAME+1];
struct timeval start;
struct timeval finished;
int32_t status;
char output[MAX_SCRIPT_OUTPUT+1];
};
struct ctdb_script_list {
uint32_t num_scripts;
struct ctdb_script *script;
};
struct ctdb_ban_state {
uint32_t pnn;
uint32_t time;
};
struct ctdb_notify_data {
uint64_t srvid;
TDB_DATA data;
};
#ifdef IFNAMSIZ
#define CTDB_IFACE_SIZE IFNAMSIZ
#else
#define CTDB_IFACE_SIZE 16
#endif
struct ctdb_iface {
char name[CTDB_IFACE_SIZE+2];
uint16_t link_state;
uint32_t references;
};
struct ctdb_iface_list {
uint32_t num;
struct ctdb_iface *iface;
};
struct ctdb_public_ip_info {
struct ctdb_public_ip ip;
uint32_t active_idx;
struct ctdb_iface_list *ifaces;
};
struct ctdb_statistics_list {
int num;
struct ctdb_statistics *stats;
};
struct ctdb_key_data {
uint32_t db_id;
struct ctdb_ltdb_header header;
TDB_DATA key;
};
struct ctdb_db_statistics {
struct {
uint32_t num_calls;
uint32_t num_current;
uint32_t num_pending;
uint32_t num_failed;
struct ctdb_latency_counter latency;
uint32_t buckets[MAX_COUNT_BUCKETS];
} locks;
struct {
struct ctdb_latency_counter latency;
} vacuum;
uint32_t db_ro_delegations;
uint32_t db_ro_revokes;
uint32_t hop_count_bucket[MAX_COUNT_BUCKETS];
uint32_t num_hot_keys;
struct {
uint32_t count;
TDB_DATA key;
} hot_keys[MAX_HOT_KEYS];
};
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,
};
struct ctdb_pid_srvid {
pid_t pid;
uint64_t srvid;
};
struct ctdb_db_vacuum {
uint32_t db_id;
bool full_vacuum_run;
};
struct ctdb_req_control_data {
uint32_t opcode;
union {
pid_t pid;
uint32_t db_id;
struct ctdb_vnn_map *vnnmap;
uint32_t loglevel;
struct ctdb_pulldb *pulldb;
struct ctdb_pulldb_ext *pulldb_ext;
struct ctdb_rec_buffer *recbuf;
uint32_t recmode;
const char *db_name;
struct ctdb_traverse_start *traverse_start;
struct ctdb_traverse_all *traverse_all;
struct ctdb_rec_data *rec_data;
uint32_t recmaster;
struct ctdb_connection *conn;
struct ctdb_tunable *tunable;
const char *tun_var;
struct ctdb_node_flag_change *flag_change;
ctdb_sock_addr *addr;
struct ctdb_tickle_list *tickles;
struct ctdb_client_id *cid;
struct ctdb_addr_info *addr_info;
struct ctdb_transdb *transdb;
struct ctdb_public_ip *pubip;
enum ctdb_event event;
double reclock_latency;
uint32_t role;
struct ctdb_ban_state *ban_state;
struct ctdb_notify_data *notify;
uint64_t srvid;
struct ctdb_iface *iface;
struct ctdb_key_data *key;
struct ctdb_traverse_start_ext *traverse_start_ext;
struct ctdb_traverse_all_ext *traverse_all_ext;
struct ctdb_pid_srvid *pid_srvid;
struct ctdb_db_vacuum *db_vacuum;
} data;
};
struct ctdb_reply_control_data {
uint32_t opcode;
union {
struct ctdb_statistics *stats;
const char *db_path;
struct ctdb_vnn_map *vnnmap;
uint32_t loglevel;
struct ctdb_dbid_map *dbmap;
struct ctdb_rec_buffer *recbuf;
uint32_t db_id;
const char *db_name;
const char *mem_str;
uint32_t tun_value;
struct ctdb_var_list *tun_var_list;
struct ctdb_tunable_list *tun_list;
struct ctdb_tickle_list *tickles;
struct ctdb_client_id_map *cid_map;
struct ctdb_uptime *uptime;
uint32_t caps;
struct ctdb_public_ip_list *pubip_list;
struct ctdb_node_map *nodemap;
const char *reclock_file;
struct ctdb_ban_state *ban_state;
uint64_t seqnum;
const char *reason;
struct ctdb_public_ip_info *ipinfo;
struct ctdb_iface_list *iface_list;
struct ctdb_statistics_list *stats_list;
struct ctdb_db_statistics *dbstats;
enum ctdb_runstate runstate;
uint32_t num_records;
int tdb_flags;
} data;
};
struct ctdb_req_control {
uint32_t opcode;
uint32_t pad;
uint64_t srvid;
uint32_t client_id;
#define CTDB_CTRL_FLAG_NOREPLY 1
#define CTDB_CTRL_FLAG_OPCODE_SPECIFIC 0xFFFF0000
/* Ugly overloading of this field... */
#define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
uint32_t flags;
struct ctdb_req_control_data rdata;
};
struct ctdb_reply_control {
int32_t status;
const char *errmsg;
struct ctdb_reply_control_data rdata;
};
struct ctdb_election_message {
uint32_t num_connected;
struct timeval priority_time;
uint32_t pnn;
uint32_t node_flags;
};
struct ctdb_srvid_message {
uint32_t pnn;
uint64_t srvid;
};
struct ctdb_disable_message {
uint32_t pnn;
uint64_t srvid;
uint32_t timeout;
};
union ctdb_message_data {
/* SRVID_ELECTION */
struct ctdb_election_message *election;
/* SRVID_RELEASE_IP, SRVID_TAKE_IP */
const char *ipaddr;
/* SRVID_SET_NODE_FLAGS, SERVID_PUSH_NODE_FLAGS */
struct ctdb_node_flag_change *flag_change;
/* SRVID_RECD_UPDATE_IP */
struct ctdb_public_ip *pubip;
/* SRVID_VACUUM_FETCH */
struct ctdb_rec_buffer *recbuf;
/* SRVID_DETACH_DATABASE */
uint32_t db_id;
/* SRVID_MEM_DUMP, SRVID_TAKEOVER_RUN */
struct ctdb_srvid_message *msg;
/* SRVID_BANNING, SRVID_REBALANCE_NODE */
uint32_t pnn;
/* SRVID_DISABLE_TAKEOVER_RUNS, SRVID_DISABLE_RECOVERIES */
struct ctdb_disable_message *disable;
/* SRVID_DISABLE_IP_CHECK */
uint32_t timeout;
/* Other */
TDB_DATA data;
};
struct ctdb_req_message {