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
27 static const char rcsid[] =
28 "$FreeBSD: stable/9/sbin/ifconfig/ifgre.c 289987 2015-10-26 03:48:14Z ngie $";
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
54 static void gre_status(int s);
55
56 static void
gre_status(int s)57 gre_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
67 static void
setifgrekey(const char * val,int dummy __unused,int s,const struct afswtch * afp)68 setifgrekey(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
79 static struct cmd gre_cmds[] = {
80 DEF_CMD_ARG("grekey", setifgrekey),
81 };
82 static struct afswtch af_gre = {
83 .af_name = "af_gre",
84 .af_af = AF_UNSPEC,
85 .af_other_status = gre_status,
86 };
87
88 static __constructor void
gre_ctor(void)89 gre_ctor(void)
90 {
91 size_t i;
92
93 for (i = 0; i < nitems(gre_cmds); i++)
94 cmd_register(&gre_cmds[i]);
95 af_register(&af_gre);
96 }
97