/* 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 . */ #ifndef __CTDB_PROTOCOL_H__ #define __CTDB_PROTOCOL_H__ #include #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 for broadcasting leader */ #define CTDB_SRVID_LEADER 0xF101000000000000LL /* 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 - OBSOLETE */ #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, /* obsolete */ CTDB_CONTROL_PUSH_DB = 14, /* obsolete */ 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, /* obsolete */ CTDB_CONTROL_SET_RECMASTER = 32, /* obsolete */ 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, CTDB_CONTROL_ECHO_DATA = 156, CTDB_CONTROL_DISABLE_NODE = 157, CTDB_CONTROL_ENABLE_NODE = 158, }; #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_echo_data { uint32_t timeout; TDB_DATA buf; }; 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; struct ctdb_echo_data *echo_data; } 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; struct ctdb_echo_data *echo_data; } 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 #define CTDB_CTRL_FLAG_ATTACH_RECOVERY 0x00020000 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, SRVID_LEADER */ 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; }; #endif /* __CTDB_PROTOCOL_H__ */