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 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(if_ctx *ctx) 54 { 55 struct ifreq ifr; 56 mac_t label; 57 char *label_text; 58 59 memset(&ifr, 0, sizeof(ifr)); 60 strlcpy(ifr.ifr_name, ctx->ifname, 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_ctx(ctx, 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(if_ctx *ctx, const char *val, int d __unused) 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 strlcpy(ifr.ifr_name, ctx->ifname, sizeof(ifr.ifr_name)); 94 ifr.ifr_ifru.ifru_data = (void *)label; 95 96 error = ioctl(ctx->io_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 size_t i; 115 116 for (i = 0; i < nitems(mac_cmds); i++) 117 cmd_register(&mac_cmds[i]); 118 af_register(&af_mac); 119 } 120