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
maclabel_status(if_ctx * ctx)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
setifmaclabel(if_ctx * ctx,const char * val,int d __unused)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
mac_ctor(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