1/*- 2 * Copyright (c) 2009 Hiroki Sato. 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 27static const char rcsid[] = 28 "$FreeBSD$"; 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_gif.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#define GIFBITS "\020\2IGNORE_SOURCE" 55 56static void gif_status(int); 57 58static void 59gif_status(int s) 60{ 61 int opts; 62 63 ifr.ifr_data = (caddr_t)&opts; 64 if (ioctl(s, GIFGOPTS, &ifr) == -1) 65 return; 66 if (opts == 0) 67 return; 68 printb("\toptions", opts, GIFBITS); 69 putchar('\n'); 70} 71 72static void 73setgifopts(const char *val, int d, int s, const struct afswtch *afp) 74{ 75 int opts; 76 77 if (d == 0) 78 return; 79 ifr.ifr_data = (caddr_t)&opts; 80 if (ioctl(s, GIFGOPTS, &ifr) == -1) { 81 warn("ioctl(GIFGOPTS)"); 82 return; 83 } 84 85 if (d < 0) 86 opts &= ~(-d); 87 else 88 opts |= d; 89 90 if (ioctl(s, GIFSOPTS, &ifr) == -1) { 91 warn("ioctl(GIFSOPTS)"); 92 return; 93 } 94} 95 96static 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), 103}; 104 105static struct afswtch af_gif = { 106 .af_name = "af_gif", 107 .af_af = AF_UNSPEC, 108 .af_other_status = gif_status, 109}; 110 111static __constructor void 112gif_ctor(void) 113{ 114 size_t i; 115 116 for (i = 0; i < nitems(gif_cmds); i++) 117 cmd_register(&gif_cmds[i]); 118 af_register(&af_gif); 119} 120