1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 */
29
30#define	SOCK_BACKLOG		5
31
32#define	CM_MSG_MAXLEN		8192
33#define	CM_VERSION		1
34#define	CM_VERSION_STR		"1.0"
35
36#define	CM_TYPE_EOM		0
37#define	CM_TYPE_ACK		1
38#define	CM_TYPE_ERR		2
39#define	CM_TYPE_NUL		3
40#define	CM_TYPE_REQ_SET_PROP	4
41#define	CM_TYPE_REQ_GET_PROP	5
42#define	CM_TYPE_MAX		6
43
44#define	CM_STATE_EOM		0
45#define	CM_STATE_INIT		1
46#define	CM_STATE_MSG_DISPATCH	2
47#define	CM_STATE_MSG_RECV	3
48#define	CM_STATE_ACK_WAIT	4
49
50struct ctrl_msg_hdr {
51	int	cm_version;
52	size_t	cm_len;
53	int	cm_type;
54};
55
56struct ctrl_msg_pl {
57	char	*cp_ifname;
58	char	*cp_key;
59
60	size_t	cp_val_len;
61	char	*cp_val;
62};
63
64int	csock_open(struct sockinfo *, mode_t);
65int	csock_close(struct sockinfo *);
66int	csock_listen(struct sockinfo *);
67int	csock_accept(struct sockinfo *);
68int	cm_send(int, char *);
69int	cm_recv(int, char *);
70
71size_t			cm_pl2bin(char *, struct ctrl_msg_pl *);
72struct ctrl_msg_pl	*cm_bin2pl(char *, struct ctrl_msg_pl *);
73size_t			cm_str2bin(char *, void *, size_t);
74void			*cm_bin2str(char *, void *, size_t);
75