1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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
31 #include <sys/param.h>
32 #include <sys/ioctl.h>
33 #include <sys/socket.h>
34 #include <sys/sockio.h>
35
36 #include <net/if.h>
37 #include <net/route.h>
38
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <err.h>
43
44 #include "ifconfig.h"
45
46 static void
fib_status(if_ctx * ctx)47 fib_status(if_ctx *ctx)
48 {
49 struct ifreq ifr;
50
51 memset(&ifr, 0, sizeof(ifr));
52 strlcpy(ifr.ifr_name, ctx->ifname, sizeof(ifr.ifr_name));
53 if (ioctl_ctx(ctx, SIOCGIFFIB, (caddr_t)&ifr) == 0 &&
54 ifr.ifr_fib != RT_DEFAULT_FIB)
55 printf("\tfib: %u\n", ifr.ifr_fib);
56
57 memset(&ifr, 0, sizeof(ifr));
58 strlcpy(ifr.ifr_name, ctx->ifname, sizeof(ifr.ifr_name));
59 if (ioctl_ctx(ctx, SIOCGTUNFIB, (caddr_t)&ifr) == 0 &&
60 ifr.ifr_fib != RT_DEFAULT_FIB)
61 printf("\ttunnelfib: %u\n", ifr.ifr_fib);
62 }
63
64 static void
setiffib(if_ctx * ctx,const char * val,int dummy __unused)65 setiffib(if_ctx *ctx, const char *val, int dummy __unused)
66 {
67 struct ifreq ifr = {};
68 unsigned long fib;
69 char *ep;
70
71 fib = strtoul(val, &ep, 0);
72 if (*ep != '\0' || fib > UINT_MAX) {
73 warn("fib %s not valid", val);
74 return;
75 }
76
77 ifr.ifr_fib = fib;
78 if (ioctl_ctx_ifr(ctx, SIOCSIFFIB, &ifr) < 0)
79 warn("ioctl (SIOCSIFFIB)");
80 }
81
82 static void
settunfib(if_ctx * ctx,const char * val,int dummy __unused)83 settunfib(if_ctx *ctx, const char *val, int dummy __unused)
84 {
85 struct ifreq ifr = {};
86 unsigned long fib;
87 char *ep;
88
89 fib = strtoul(val, &ep, 0);
90 if (*ep != '\0' || fib > UINT_MAX) {
91 warn("fib %s not valid", val);
92 return;
93 }
94
95 ifr.ifr_fib = fib;
96 if (ioctl_ctx_ifr(ctx, SIOCSTUNFIB, &ifr) < 0)
97 warn("ioctl (SIOCSTUNFIB)");
98 }
99
100 static struct cmd fib_cmds[] = {
101 DEF_CMD_ARG("fib", setiffib),
102 DEF_CMD_ARG("tunnelfib", settunfib),
103 };
104
105 static struct afswtch af_fib = {
106 .af_name = "af_fib",
107 .af_af = AF_UNSPEC,
108 .af_other_status = fib_status,
109 };
110
111 static __constructor void
fib_ctor(void)112 fib_ctor(void)
113 {
114 size_t i;
115
116 for (i = 0; i < nitems(fib_cmds); i++)
117 cmd_register(&fib_cmds[i]);
118 af_register(&af_fib);
119 }
120