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samba-mirror/ctdb/protocol/protocol.h
Martin Schwenke 36938bfdd0 ctdb-server: Rename CTDB_BROADCAST_VNNMAP -> CTDB_BROADCAST_ACTIVE 
This broadcast is misnamed.  Both places where this type of broadcast
is used expect the broadcast to go to all active nodes.

Make the corresponding change to the semantics in the daemon by
sending to all active nodes.

There is a mismatch between the ideas of VNN map and active nodes.  A
node that is not in the VNN map but is active can still host database
records.  These were the same until the LMASTER capability was
introduced and then the logic was not updated.

The only place where the VNN map is relevant is when finding the
location master of a record in the migration code.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13499

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2018-07-02 08:51:22 +02:00

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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,
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,
};
#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_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;
} 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 {
uint64_t srvid;
union ctdb_message_data data;
};
struct ctdb_req_message_data {
uint64_t srvid;
TDB_DATA data;
};
struct ctdb_req_keepalive {
uint32_t version;
uint32_t uptime;
};
#define CTDB_TUNNEL_TEST 0xffffffff00000000
#define CTDB_TUNNEL_FLAG_REQUEST 0x00000001
#define CTDB_TUNNEL_FLAG_REPLY 0x00000002
#define CTDB_TUNNEL_FLAG_NOREPLY 0x00000010
struct ctdb_req_tunnel {
uint64_t tunnel_id;
uint32_t flags;
TDB_DATA data;
};
/* This is equivalent to server_id */
struct ctdb_server_id {
uint64_t pid;
uint32_t task_id;
uint32_t vnn;
uint64_t unique_id;
};
enum ctdb_g_lock_type {
CTDB_G_LOCK_READ = 0,
CTDB_G_LOCK_WRITE = 1,
};
struct ctdb_g_lock {
enum ctdb_g_lock_type type;
struct ctdb_server_id sid;
};
struct ctdb_g_lock_list {
unsigned int num;
struct ctdb_g_lock *lock;
};
/*
* Generic packet header
*/
struct sock_packet_header {
uint32_t length;
uint32_t reqid;
};
/*
* Eventd protocol
*/
enum ctdb_event_command {
CTDB_EVENT_COMMAND_RUN = 1,
CTDB_EVENT_COMMAND_STATUS = 2,
CTDB_EVENT_COMMAND_SCRIPT_LIST = 3,
CTDB_EVENT_COMMAND_SCRIPT_ENABLE = 4,
CTDB_EVENT_COMMAND_SCRIPT_DISABLE = 5,
};
enum ctdb_event_status_state {
CTDB_EVENT_LAST_RUN = 1,
CTDB_EVENT_LAST_PASS = 2,
CTDB_EVENT_LAST_FAIL = 3,
};
struct ctdb_event_request_run {
enum ctdb_event event;
uint32_t timeout;
const char *arg_str;
};
struct ctdb_event_request_status {
enum ctdb_event event;
enum ctdb_event_status_state state;
};
struct ctdb_event_request_script_enable {
const char *script_name;
};
struct ctdb_event_request_script_disable {
const char *script_name;
};
struct ctdb_event_request_data {
enum ctdb_event_command command;
union {
struct ctdb_event_request_run *run;
struct ctdb_event_request_status *status;
struct ctdb_event_request_script_enable *script_enable;
struct ctdb_event_request_script_disable *script_disable;
} data;
};
struct ctdb_event_reply_status {
int status;
struct ctdb_script_list *script_list;
};
struct ctdb_event_reply_script_list {
struct ctdb_script_list *script_list;
};
struct ctdb_event_reply_data {
enum ctdb_event_command command;
int32_t result;
union {
struct ctdb_event_reply_status *status;
struct ctdb_event_reply_script_list *script_list;
} data;
};
struct ctdb_event_request {
struct sock_packet_header header;
struct ctdb_event_request_data rdata;
};
struct ctdb_event_reply {
struct sock_packet_header header;
struct ctdb_event_reply_data rdata;
};
#endif /* __CTDB_PROTOCOL_H__ */
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