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9083f49e76
This can we used to traverse through all ip addresses ctdb knows about. The caller can select node ips and/or public ips. This will we useful to monitor the addresses from a witness service... Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Günther Deschner <gd@samba.org>
195 lines
6.2 KiB
C
195 lines
6.2 KiB
C
/*
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Unix SMB/CIFS implementation.
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Samba3 ctdb connection handling
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Copyright (C) Volker Lendecke 2007
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _CTDBD_CONN_H
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#define _CTDBD_CONN_H
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#include "replace.h"
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#include "system/filesys.h"
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#include "system/network.h"
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#include "lib/dbwrap/dbwrap.h"
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#include <tdb.h>
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#include <tevent.h>
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struct ctdbd_connection;
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struct messaging_context;
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struct messaging_rec;
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int ctdbd_init_connection(TALLOC_CTX *mem_ctx,
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const char *sockname, int timeout,
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struct ctdbd_connection **pconn);
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int ctdbd_init_async_connection(
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TALLOC_CTX *mem_ctx,
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const char *sockname,
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int timeout,
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struct ctdbd_connection **pconn);
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int ctdbd_reinit_connection(TALLOC_CTX *mem_ctx,
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const char *sockname, int timeout,
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struct ctdbd_connection *conn);
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uint32_t ctdbd_vnn(const struct ctdbd_connection *conn);
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int ctdbd_conn_get_fd(struct ctdbd_connection *conn);
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void ctdbd_socket_readable(struct tevent_context *ev,
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struct ctdbd_connection *conn);
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int ctdbd_messaging_send_iov(struct ctdbd_connection *conn,
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uint32_t dst_vnn, uint64_t dst_srvid,
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const struct iovec *iov, int iovlen);
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bool ctdbd_process_exists(struct ctdbd_connection *conn, uint32_t vnn,
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pid_t pid, uint64_t unique_id);
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char *ctdbd_dbpath(struct ctdbd_connection *conn,
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TALLOC_CTX *mem_ctx, uint32_t db_id);
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int ctdbd_db_attach(struct ctdbd_connection *conn, const char *name,
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uint32_t *db_id, bool persistent);
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int ctdbd_migrate(struct ctdbd_connection *conn, uint32_t db_id, TDB_DATA key);
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int ctdbd_parse(struct ctdbd_connection *conn, uint32_t db_id,
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TDB_DATA key, bool local_copy,
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void (*parser)(TDB_DATA key, TDB_DATA data,
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void *private_data),
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void *private_data);
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int ctdbd_traverse(struct ctdbd_connection *master, uint32_t db_id,
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void (*fn)(TDB_DATA key, TDB_DATA data,
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void *private_data),
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void *private_data);
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int ctdbd_register_ips(struct ctdbd_connection *conn,
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const struct sockaddr_storage *server,
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const struct sockaddr_storage *client,
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int (*cb)(struct tevent_context *ev,
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uint32_t src_vnn, uint32_t dst_vnn,
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uint64_t dst_srvid,
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const uint8_t *msg, size_t msglen,
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void *private_data),
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void *private_data);
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void ctdbd_unregister_ips(struct ctdbd_connection *conn,
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const struct sockaddr_storage *_server,
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const struct sockaddr_storage *_client,
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int (*cb)(struct tevent_context *ev,
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uint32_t src_vnn,
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uint32_t dst_vnn,
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uint64_t dst_srvid,
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const uint8_t *msg,
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size_t msglen,
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void *private_data),
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void *private_data);
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void ctdbd_passed_ips(struct ctdbd_connection *conn,
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const struct sockaddr_storage *_server,
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const struct sockaddr_storage *_client,
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int (*cb)(struct tevent_context *ev,
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uint32_t src_vnn,
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uint32_t dst_vnn,
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uint64_t dst_srvid,
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const uint8_t *msg,
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size_t msglen,
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void *private_data),
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void *private_data);
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/*
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* call @cb for each public IP. If @cb returns non-zero, then break the loop
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* and propagate the return value upwards.
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* @returns: 0 on success, where all @cb invocations also returned zero
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* ENOMEM on memory allocation failure
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* EIO on ctdbd connection failure
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* @cb() return value if non-zero
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*/
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int ctdbd_public_ip_foreach(struct ctdbd_connection *conn,
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int (*cb)(uint32_t total_ip_count,
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const struct sockaddr_storage *ip,
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bool is_movable_ip,
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void *private_data),
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void *private_data);
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int ctdbd_all_ip_foreach(struct ctdbd_connection *conn,
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bool include_node_ips,
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bool include_public_ips,
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int (*cb)(uint32_t total_ip_count,
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const struct sockaddr_storage *ip,
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uint32_t pinned_pnn,
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uint32_t current_pnn,
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void *private_data),
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void *private_data);
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int ctdbd_control_local(struct ctdbd_connection *conn, uint32_t opcode,
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uint64_t srvid, uint32_t flags, TDB_DATA data,
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TALLOC_CTX *mem_ctx, TDB_DATA *outdata,
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int32_t *cstatus);
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int ctdb_watch_us(struct ctdbd_connection *conn);
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int ctdb_unwatch(struct ctdbd_connection *conn);
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struct ctdb_req_message_old;
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int register_with_ctdbd(struct ctdbd_connection *conn, uint64_t srvid,
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int (*cb)(struct tevent_context *ev,
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uint32_t src_vnn, uint32_t dst_vnn,
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uint64_t dst_srvid,
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const uint8_t *msg, size_t msglen,
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void *private_data),
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void *private_data);
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void deregister_from_ctdbd(struct ctdbd_connection *conn,
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uint64_t srvid,
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int (*cb)(struct tevent_context *ev,
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uint32_t src_vnn,
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uint32_t dst_vnn,
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uint64_t dst_srvid,
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const uint8_t *msg,
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size_t msglen,
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void *private_data),
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void *private_data);
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int ctdbd_probe(const char *sockname, int timeout);
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struct ctdb_req_header;
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void ctdbd_prep_hdr_next_reqid(
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struct ctdbd_connection *conn, struct ctdb_req_header *hdr);
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/*
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* Async ctdb_request. iov[0] must start with an initialized
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* struct ctdb_req_header
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*/
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struct tevent_req *ctdbd_req_send(
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TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct ctdbd_connection *conn,
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struct iovec *iov,
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size_t num_iov);
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int ctdbd_req_recv(
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struct tevent_req *req,
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TALLOC_CTX *mem_ctx,
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struct ctdb_req_header **reply);
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struct tevent_req *ctdbd_parse_send(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct ctdbd_connection *conn,
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uint32_t db_id,
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TDB_DATA key,
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bool local_copy,
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void (*parser)(TDB_DATA key,
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TDB_DATA data,
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void *private_data),
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void *private_data,
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enum dbwrap_req_state *req_state);
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int ctdbd_parse_recv(struct tevent_req *req);
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#endif /* _CTDBD_CONN_H */
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