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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2009 Hiroki Sato. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <stdlib.h>
#include <unistd.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_gif.h>
#include <net/route.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>
#include <errno.h>
#include "ifconfig.h"
#define GIFBITS "\020\2IGNORE_SOURCE"
static void
gif_status(if_ctx *ctx)
{
int opts;
struct ifreq ifr = { .ifr_data = (caddr_t)&opts };
if (ioctl_ctx_ifr(ctx, GIFGOPTS, &ifr) == -1)
return;
if (opts == 0)
return;
printb("\toptions", opts, GIFBITS);
putchar('\n');
}
static void
setgifopts(if_ctx *ctx, const char *val __unused, int d)
{
int opts;
struct ifreq ifr = { .ifr_data = (caddr_t)&opts };
if (ioctl_ctx_ifr(ctx, GIFGOPTS, &ifr) == -1) {
warn("ioctl(GIFGOPTS)");
return;
}
if (d < 0)
opts &= ~(-d);
else
opts |= d;
if (ioctl_ctx(ctx, GIFSOPTS, &ifr) == -1) {
warn("ioctl(GIFSOPTS)");
return;
}
}
static struct cmd gif_cmds[] = {
DEF_CMD("ignore_source", GIF_IGNORE_SOURCE, setgifopts),
DEF_CMD("-ignore_source", -GIF_IGNORE_SOURCE, setgifopts),
};
static struct afswtch af_gif = {
.af_name = "af_gif",
.af_af = AF_UNSPEC,
.af_other_status = gif_status,
};
static __constructor void
gif_ctor(void)
{
size_t i;
for (i = 0; i < nitems(gif_cmds); i++)
cmd_register(&gif_cmds[i]);
af_register(&af_gif);
}
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