1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2011 Alexander V. Chernikov
5 * Copyright (c) 2011 Christian S.J. Peron
6 * Copyright (c) 2011 Bjoern A. Zeeb
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $FreeBSD$
31 */
32
33 #include <sys/param.h>
34 #include <sys/ioctl.h>
35 #include <sys/socket.h>
36 #include <sys/sockio.h>
37
38 #include <net/if.h>
39 #include <net/route.h>
40
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #include <err.h>
45
46 #include "ifconfig.h"
47
48 static void
fib_status(int s)49 fib_status(int s)
50 {
51 struct ifreq ifr;
52
53 memset(&ifr, 0, sizeof(ifr));
54 strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
55 if (ioctl(s, SIOCGIFFIB, (caddr_t)&ifr) == 0 &&
56 ifr.ifr_fib != RT_DEFAULT_FIB)
57 printf("\tfib: %u\n", ifr.ifr_fib);
58
59 memset(&ifr, 0, sizeof(ifr));
60 strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
61 if (ioctl(s, SIOCGTUNFIB, (caddr_t)&ifr) == 0 &&
62 ifr.ifr_fib != RT_DEFAULT_FIB)
63 printf("\ttunnelfib: %u\n", ifr.ifr_fib);
64 }
65
66 static void
setiffib(const char * val,int dummy __unused,int s,const struct afswtch * afp)67 setiffib(const char *val, int dummy __unused, int s,
68 const struct afswtch *afp)
69 {
70 unsigned long fib;
71 char *ep;
72
73 fib = strtoul(val, &ep, 0);
74 if (*ep != '\0' || fib > UINT_MAX) {
75 warn("fib %s not valid", val);
76 return;
77 }
78
79 strlcpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
80 ifr.ifr_fib = fib;
81 if (ioctl(s, SIOCSIFFIB, (caddr_t)&ifr) < 0)
82 warn("ioctl (SIOCSIFFIB)");
83 }
84
85 static void
settunfib(const char * val,int dummy __unused,int s,const struct afswtch * afp)86 settunfib(const char *val, int dummy __unused, int s,
87 const struct afswtch *afp)
88 {
89 unsigned long fib;
90 char *ep;
91
92 fib = strtoul(val, &ep, 0);
93 if (*ep != '\0' || fib > UINT_MAX) {
94 warn("fib %s not valid", val);
95 return;
96 }
97
98 strlcpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
99 ifr.ifr_fib = fib;
100 if (ioctl(s, SIOCSTUNFIB, (caddr_t)&ifr) < 0)
101 warn("ioctl (SIOCSTUNFIB)");
102 }
103
104 static struct cmd fib_cmds[] = {
105 DEF_CMD_ARG("fib", setiffib),
106 DEF_CMD_ARG("tunnelfib", settunfib),
107 };
108
109 static struct afswtch af_fib = {
110 .af_name = "af_fib",
111 .af_af = AF_UNSPEC,
112 .af_other_status = fib_status,
113 };
114
115 static __constructor void
fib_ctor(void)116 fib_ctor(void)
117 {
118 size_t i;
119
120 for (i = 0; i < nitems(fib_cmds); i++)
121 cmd_register(&fib_cmds[i]);
122 af_register(&af_fib);
123 }
124