ifmac.c revision 138593
1185377Ssam/*- 2185377Ssam * Copyright (c) 2001 Networks Associates Technology, Inc. 3185377Ssam * All rights reserved. 4185377Ssam * 5185377Ssam * This software was developed for the FreeBSD Project by NAI Labs, the 6185377Ssam * Security Research Division of Network Associates, Inc. under 7185377Ssam * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 8185377Ssam * CHATS research program. 9185377Ssam * 10185377Ssam * Redistribution and use in source and binary forms, with or without 11185377Ssam * modification, are permitted provided that the following conditions 12185377Ssam * are met: 13185377Ssam * 1. Redistributions of source code must retain the above copyright 14185377Ssam * notice, this list of conditions and the following disclaimer. 15185377Ssam * 2. Redistributions in binary form must reproduce the above copyright 16185377Ssam * notice, this list of conditions and the following disclaimer in the 17204644Srpaulo * documentation and/or other materials provided with the distribution. 18185377Ssam * 3. The name of the author may not be used to endorse or promote 19185377Ssam * products derived from this software without specific prior written 20185377Ssam * permission. 21185377Ssam * 22185377Ssam * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23185377Ssam * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24185377Ssam * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25185377Ssam * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26185377Ssam * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27185377Ssam * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28185377Ssam * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29185377Ssam * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30185377Ssam * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31185377Ssam * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32185377Ssam * SUCH DAMAGE. 33185377Ssam * 34185377Ssam * $FreeBSD: head/sbin/ifconfig/ifmac.c 138593 2004-12-08 19:18:07Z sam $ 35185377Ssam */ 36185377Ssam 37185377Ssam#include <sys/param.h> 38185377Ssam#include <sys/ioctl.h> 39185377Ssam#include <sys/mac.h> 40185377Ssam#include <sys/socket.h> 41185377Ssam#include <sys/sockio.h> 42185377Ssam 43185377Ssam#include <net/if.h> 44185377Ssam#include <net/route.h> 45217878Sadrian 46217878Sadrian#include <stdio.h> 47220599Sadrian#include <stdlib.h> 48221580Sadrian#include <string.h> 49221580Sadrian 50238276Sadrian#include "ifconfig.h" 51238276Sadrian 52238276Sadrianstatic void 53238276Sadrianmaclabel_status(int s, const struct rt_addrinfo *info) 54238276Sadrian{ 55242689Sadrian struct ifreq ifr; 56249131Sadrian mac_t label; 57185377Ssam char *label_text; 58237864Sadrian 59185377Ssam memset(&ifr, 0, sizeof(ifr)); 60185377Ssam strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 61185377Ssam 62 if (mac_prepare_ifnet_label(&label) == -1) 63 return; 64 ifr.ifr_ifru.ifru_data = (void *)label; 65 if (ioctl(s, SIOCGIFMAC, &ifr) == -1) 66 goto mac_free; 67 68 69 if (mac_to_text(label, &label_text) == -1) 70 goto mac_free; 71 72 if (strlen(label_text) != 0) 73 printf("\tmaclabel %s\n", label_text); 74 free(label_text); 75 76mac_free: 77 mac_free(label); 78} 79 80static void 81setifmaclabel(const char *val, int d, int s, const struct afswtch *rafp) 82{ 83 struct ifreq ifr; 84 mac_t label; 85 int error; 86 87 if (mac_from_text(&label, val) == -1) { 88 perror(val); 89 return; 90 } 91 92 memset(&ifr, 0, sizeof(ifr)); 93 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 94 ifr.ifr_ifru.ifru_data = (void *)label; 95 96 error = ioctl(s, SIOCSIFMAC, &ifr); 97 mac_free(label); 98 if (error == -1) 99 perror("setifmac"); 100} 101 102static struct cmd mac_cmds[] = { 103 DEF_CMD_ARG("maclabel", setifmaclabel), 104}; 105static struct afswtch af_mac = { 106 .af_name = "af_maclabel", 107 .af_af = AF_UNSPEC, 108 .af_status = maclabel_status, 109}; 110 111static __constructor void 112mac_ctor(void) 113{ 114#define N(a) (sizeof(a) / sizeof(a[0])) 115 int i; 116 117 for (i = 0; i < N(mac_cmds); i++) 118 cmd_register(&mac_cmds[i]); 119 af_register(&af_mac); 120#undef N 121} 122