2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 static const char rcsid[] =
35 #include <sys/types.h>
36 #include <sys/ioctl.h>
37 #include <sys/socket.h>
46 #include <net/if_dl.h>
47 #include <net/if_types.h>
48 #include <net/ethernet.h>
52 static struct ifreq link_ridreq;
55 link_status(int s __unused, const struct ifaddrs *ifa)
57 /* XXX no const 'cuz LLADDR is defined wrong */
58 struct sockaddr_dl *sdl = (struct sockaddr_dl *) ifa->ifa_addr;
60 if (sdl != NULL && sdl->sdl_alen > 0) {
61 if ((sdl->sdl_type == IFT_ETHER ||
62 sdl->sdl_type == IFT_L2VLAN ||
63 sdl->sdl_type == IFT_BRIDGE) &&
64 sdl->sdl_alen == ETHER_ADDR_LEN)
65 printf("\tether %s\n",
66 ether_ntoa((struct ether_addr *)LLADDR(sdl)));
68 int n = sdl->sdl_nlen > 0 ? sdl->sdl_nlen + 1 : 0;
70 printf("\tlladdr %s\n", link_ntoa(sdl) + n);
76 link_getaddr(const char *addr, int which)
79 struct sockaddr_dl sdl;
80 struct sockaddr *sa = &link_ridreq.ifr_addr;
83 errx(1, "can't set link-level netmask or broadcast");
84 if ((temp = malloc(strlen(addr) + 2)) == NULL)
85 errx(1, "malloc failed");
87 strcpy(temp + 1, addr);
88 sdl.sdl_len = sizeof(sdl);
89 link_addr(temp, &sdl);
91 if (sdl.sdl_alen > sizeof(sa->sa_data))
92 errx(1, "malformed link-level address");
93 sa->sa_family = AF_LINK;
94 sa->sa_len = sdl.sdl_alen;
95 bcopy(LLADDR(&sdl), sa->sa_data, sdl.sdl_alen);
98 static struct afswtch af_link = {
101 .af_status = link_status,
102 .af_getaddr = link_getaddr,
103 .af_aifaddr = SIOCSIFLLADDR,
104 .af_addreq = &link_ridreq,
106 static struct afswtch af_ether = {
109 .af_status = link_status,
110 .af_getaddr = link_getaddr,
111 .af_aifaddr = SIOCSIFLLADDR,
112 .af_addreq = &link_ridreq,
114 static struct afswtch af_lladdr = {
117 .af_status = link_status,
118 .af_getaddr = link_getaddr,
119 .af_aifaddr = SIOCSIFLLADDR,
120 .af_addreq = &link_ridreq,
123 static __constructor void
126 af_register(&af_link);
127 af_register(&af_ether);
128 af_register(&af_lladdr);