1 /*- 2 * Copyright (c) 2001 Networks Associates Technology, Inc. 3 * All rights reserved. 4 * 5 * This software was developed for the FreeBSD Project by NAI Labs, the 6 * Security Research Division of Network Associates, Inc. under 7 * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 8 * CHATS research program. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote 19 * products derived from this software without specific prior written 20 * permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD$ 35 */ 36 37 #include <sys/param.h> 38 #include <sys/ioctl.h> 39 #include <sys/mac.h> 40 #include <sys/socket.h> 41 #include <sys/sockio.h> 42 43 #include <net/if.h> 44 #include <net/route.h> 45 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 50 #include "ifconfig.h" 51 52 static void 53 maclabel_status(int s) 54 { 55 struct ifreq ifr; 56 mac_t label; 57 char *label_text; 58 59 memset(&ifr, 0, sizeof(ifr)); 60 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 61 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 76 mac_free: 77 mac_free(label); 78 } 79 80 static void 81 setifmaclabel(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 } 101 102 static struct cmd mac_cmds[] = { 103 DEF_CMD_ARG("maclabel", setifmaclabel), 104 }; 105 static struct afswtch af_mac = { 106 .af_name = "af_maclabel", 107 .af_af = AF_UNSPEC, 108 .af_other_status = maclabel_status, 109 }; 110 111 static __constructor void 112 mac_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