1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2001 Networks Associates Technology, Inc. 5 * All rights reserved. 6 * 7 * This software was developed for the FreeBSD Project by NAI Labs, the 8 * Security Research Division of Network Associates, Inc. under 9 * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 10 * CHATS research program. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. The name of the author may not be used to endorse or promote 21 * products derived from this software without specific prior written 22 * permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $FreeBSD$ 37 */ 38 39 #include <sys/param.h> 40 #include <sys/ioctl.h> 41 #include <sys/mac.h> 42 #include <sys/socket.h> 43 #include <sys/sockio.h> 44 45 #include <net/if.h> 46 #include <net/route.h> 47 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 52 #include "ifconfig.h" 53 54 static void 55 maclabel_status(if_ctx *ctx) 56 { 57 struct ifreq ifr; 58 mac_t label; 59 char *label_text; 60 61 memset(&ifr, 0, sizeof(ifr)); 62 strlcpy(ifr.ifr_name, ctx->ifname, sizeof(ifr.ifr_name)); 63 64 if (mac_prepare_ifnet_label(&label) == -1) 65 return; 66 ifr.ifr_ifru.ifru_data = (void *)label; 67 if (ioctl_ctx(ctx, SIOCGIFMAC, &ifr) == -1) 68 goto mac_free; 69 70 71 if (mac_to_text(label, &label_text) == -1) 72 goto mac_free; 73 74 if (strlen(label_text) != 0) 75 printf("\tmaclabel %s\n", label_text); 76 free(label_text); 77 78 mac_free: 79 mac_free(label); 80 } 81 82 static void 83 setifmaclabel(if_ctx *ctx, const char *val, int d __unused) 84 { 85 struct ifreq ifr; 86 mac_t label; 87 int error; 88 89 if (mac_from_text(&label, val) == -1) { 90 perror(val); 91 return; 92 } 93 94 memset(&ifr, 0, sizeof(ifr)); 95 strlcpy(ifr.ifr_name, ctx->ifname, sizeof(ifr.ifr_name)); 96 ifr.ifr_ifru.ifru_data = (void *)label; 97 98 error = ioctl(ctx->io_s, SIOCSIFMAC, &ifr); 99 mac_free(label); 100 if (error == -1) 101 perror("setifmac"); 102 } 103 104 static struct cmd mac_cmds[] = { 105 DEF_CMD_ARG("maclabel", setifmaclabel), 106 }; 107 static struct afswtch af_mac = { 108 .af_name = "af_maclabel", 109 .af_af = AF_UNSPEC, 110 .af_other_status = maclabel_status, 111 }; 112 113 static __constructor void 114 mac_ctor(void) 115 { 116 size_t i; 117 118 for (i = 0; i < nitems(mac_cmds); i++) 119 cmd_register(&mac_cmds[i]); 120 af_register(&af_mac); 121 } 122