2 * Copyright (c) 2009 Hiroki Sato. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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.
27 static const char rcsid[] =
31 #include <sys/param.h>
32 #include <sys/ioctl.h>
33 #include <sys/socket.h>
34 #include <sys/sockio.h>
39 #include <net/ethernet.h>
41 #include <net/if_gif.h>
42 #include <net/route.h>
54 #define GIFBITS "\020\2IGNORE_SOURCE"
56 static void gif_status(int);
63 ifr.ifr_data = (caddr_t)&opts;
64 if (ioctl(s, GIFGOPTS, &ifr) == -1)
68 printb("\toptions", opts, GIFBITS);
73 setgifopts(const char *val, int d, int s, const struct afswtch *afp)
79 ifr.ifr_data = (caddr_t)&opts;
80 if (ioctl(s, GIFGOPTS, &ifr) == -1) {
81 warn("ioctl(GIFGOPTS)");
90 if (ioctl(s, GIFSOPTS, &ifr) == -1) {
91 warn("ioctl(GIFSOPTS)");
96 static struct cmd gif_cmds[] = {
97 DEF_CMD("accept_rev_ethip_ver", 0, setgifopts),
98 DEF_CMD("-accept_rev_ethip_ver",0, setgifopts),
99 DEF_CMD("ignore_source", GIF_IGNORE_SOURCE, setgifopts),
100 DEF_CMD("-ignore_source", -GIF_IGNORE_SOURCE, setgifopts),
101 DEF_CMD("send_rev_ethip_ver", 0, setgifopts),
102 DEF_CMD("-send_rev_ethip_ver", 0, setgifopts),
105 static struct afswtch af_gif = {
108 .af_other_status = gif_status,
111 static __constructor void
116 for (i = 0; i < nitems(gif_cmds); i++)
117 cmd_register(&gif_cmds[i]);
118 af_register(&af_gif);