1/*-
2 * Copyright (c) 2008 Andrew Thompson. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
17 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
19 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
21 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
22 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef lint
27static const char rcsid[] =
28  "$FreeBSD$";
29#endif
30
31#include <sys/param.h>
32#include <sys/ioctl.h>
33#include <sys/socket.h>
34#include <sys/sockio.h>
35
36#include <stdlib.h>
37#include <unistd.h>
38
39#include <net/ethernet.h>
40#include <net/if.h>
41#include <net/if_gre.h>
42#include <net/route.h>
43
44#include <ctype.h>
45#include <stdio.h>
46#include <string.h>
47#include <stdlib.h>
48#include <unistd.h>
49#include <err.h>
50#include <errno.h>
51
52#include "ifconfig.h"
53
54static	void gre_status(int s);
55
56static void
57gre_status(int s)
58{
59	int grekey = 0;
60
61	ifr.ifr_data = (caddr_t)&grekey;
62	if (ioctl(s, GREGKEY, &ifr) == 0)
63		if (grekey != 0)
64			printf("\tgrekey: %d\n", grekey);
65}
66
67static void
68setifgrekey(const char *val, int dummy __unused, int s,
69    const struct afswtch *afp)
70{
71	uint32_t grekey = atol(val);
72
73	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
74	ifr.ifr_data = (caddr_t)&grekey;
75	if (ioctl(s, GRESKEY, (caddr_t)&ifr) < 0)
76		warn("ioctl (set grekey)");
77}
78
79static struct cmd gre_cmds[] = {
80	DEF_CMD_ARG("grekey",			setifgrekey),
81};
82static struct afswtch af_gre = {
83	.af_name	= "af_gre",
84	.af_af		= AF_UNSPEC,
85	.af_other_status = gre_status,
86};
87
88static __constructor void
89gre_ctor(void)
90{
91#define	N(a)	(sizeof(a) / sizeof(a[0]))
92	size_t i;
93
94	for (i = 0; i < N(gre_cmds);  i++)
95		cmd_register(&gre_cmds[i]);
96	af_register(&af_gre);
97#undef N
98}
99