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
maclabel_status(int s)55 maclabel_status(int s)
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, name, 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(s, 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
setifmaclabel(const char * val,int d,int s,const struct afswtch * rafp)83 setifmaclabel(const char *val, int d, int s, const struct afswtch *rafp)
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, name, sizeof(ifr.ifr_name));
96 ifr.ifr_ifru.ifru_data = (void *)label;
97
98 error = ioctl(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
mac_ctor(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