1/*-
2 * Copyright (c) 2009-2010 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Pawel Jakub Dawidek under sponsorship from
6 * the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef	_PROTO_IMPL_H_
31#define	_PROTO_IMPL_H_
32
33#include <sys/queue.h>
34
35#include <stdbool.h>	/* bool */
36#include <stdlib.h>	/* size_t */
37
38#define	__constructor	__attribute__((constructor))
39
40struct proto_conn;
41
42typedef int prt_connect_t(const char *, const char *, int, void **);
43typedef int prt_connect_wait_t(void *, int);
44typedef int prt_server_t(const char *, void **);
45typedef int prt_accept_t(void *, void **);
46typedef int prt_wrap_t(int, bool, void **);
47typedef int prt_send_t(void *, const unsigned char *, size_t, int);
48typedef int prt_recv_t(void *, unsigned char *, size_t, int *);
49typedef int prt_descriptor_t(const void *);
50typedef bool prt_address_match_t(const void *, const char *);
51typedef void prt_local_address_t(const void *, char *, size_t);
52typedef void prt_remote_address_t(const void *, char *, size_t);
53typedef void prt_close_t(void *);
54typedef int prt_exec_t(int, char *[]);
55
56struct proto {
57	const char		*prt_name;
58	prt_connect_t		*prt_connect;
59	prt_connect_wait_t	*prt_connect_wait;
60	prt_server_t		*prt_server;
61	prt_accept_t		*prt_accept;
62	prt_wrap_t		*prt_wrap;
63	prt_send_t		*prt_send;
64	prt_recv_t		*prt_recv;
65	prt_descriptor_t	*prt_descriptor;
66	prt_address_match_t	*prt_address_match;
67	prt_local_address_t	*prt_local_address;
68	prt_remote_address_t	*prt_remote_address;
69	prt_close_t		*prt_close;
70	prt_exec_t		*prt_exec;
71	TAILQ_ENTRY(proto)	 prt_next;
72};
73
74void proto_register(struct proto *proto, bool isdefault);
75
76int proto_wrap(const char *protoname, bool client, int fd,
77    struct proto_conn **newconnp);
78
79int proto_common_send(int sock, const unsigned char *data, size_t size, int fd);
80int proto_common_recv(int sock, unsigned char *data, size_t size, int *fdp);
81
82#endif	/* !_PROTO_IMPL_H_ */
83