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0b626a289e
This way we know how to connect to secondary node when we are primary. The same variable is used by the secondary node - it only accepts connections from the address stored in 'remote' variable. In cluster configurations it is common that each node has its individual IP address and there is one addtional shared IP address which is assigned to primary node. It seems it is possible that if the shared IP address is from the same network as the individual IP address it might be choosen by the kernel as a source address for connection with the secondary node. Such connection will be rejected by secondary, as it doesn't come from primary node individual IP. Add 'source' variable that allows to specify source IP address we want to bind to before connecting to the secondary node. MFC after: 1 week
62 lines
2.7 KiB
C
62 lines
2.7 KiB
C
/*-
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* Copyright (c) 2009-2010 The FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed by Pawel Jakub Dawidek under sponsorship from
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* the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _PROTO_H_
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#define _PROTO_H_
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#include <stdbool.h> /* bool */
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#include <stdlib.h> /* size_t */
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struct proto_conn;
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int proto_client(const char *srcaddr, const char *dstaddr,
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struct proto_conn **connp);
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int proto_connect(struct proto_conn *conn, int timeout);
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int proto_connect_wait(struct proto_conn *conn, int timeout);
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int proto_server(const char *addr, struct proto_conn **connp);
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int proto_accept(struct proto_conn *conn, struct proto_conn **newconnp);
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int proto_send(const struct proto_conn *conn, const void *data, size_t size);
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int proto_recv(const struct proto_conn *conn, void *data, size_t size);
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int proto_connection_send(const struct proto_conn *conn,
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struct proto_conn *mconn);
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int proto_connection_recv(const struct proto_conn *conn, bool client,
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struct proto_conn **newconnp);
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int proto_descriptor(const struct proto_conn *conn);
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bool proto_address_match(const struct proto_conn *conn, const char *addr);
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void proto_local_address(const struct proto_conn *conn, char *addr,
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size_t size);
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void proto_remote_address(const struct proto_conn *conn, char *addr,
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size_t size);
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int proto_timeout(const struct proto_conn *conn, int timeout);
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void proto_close(struct proto_conn *conn);
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#endif /* !_PROTO_H_ */
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