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/param.h>
36 #include <sys/ioctl.h>
37 #include <sys/socket.h>
48 #include <netinet/in.h>
49 #include <netinet/in_var.h>
50 #include <arpa/inet.h>
55 static struct in_aliasreq in_addreq;
56 static struct ifreq in_ridreq;
57 static char addr_buf[NI_MAXHOST]; /*for getnameinfo()*/
58 extern char *f_inet, *f_addr;
61 in_status(int s __unused, const struct ifaddrs *ifa)
63 struct sockaddr_in *sin, null_sin;
66 memset(&null_sin, 0, sizeof(null_sin));
68 sin = (struct sockaddr_in *)ifa->ifa_addr;
72 if (f_addr != NULL && strcmp(f_addr, "fqdn") == 0)
74 else if (f_addr != NULL && strcmp(f_addr, "host") == 0)
77 n_flags = NI_NUMERICHOST;
79 error = getnameinfo((struct sockaddr *)sin, sin->sin_len, addr_buf,
80 sizeof(addr_buf), NULL, 0, n_flags);
83 inet_ntop(AF_INET, &sin->sin_addr, addr_buf, sizeof(addr_buf));
85 printf("\tinet %s", addr_buf);
87 if (ifa->ifa_flags & IFF_POINTOPOINT) {
88 sin = (struct sockaddr_in *)ifa->ifa_dstaddr;
91 printf(" --> %s", inet_ntoa(sin->sin_addr));
94 sin = (struct sockaddr_in *)ifa->ifa_netmask;
97 if (f_inet != NULL && strcmp(f_inet, "cidr") == 0) {
101 smask = ntohl(sin->sin_addr.s_addr);
102 while ((smask & 1) == 0) {
109 } else if (f_inet != NULL && strcmp(f_inet, "dotted") == 0)
110 printf(" netmask %s", inet_ntoa(sin->sin_addr));
112 printf(" netmask 0x%lx", (unsigned long)ntohl(sin->sin_addr.s_addr));
114 if (ifa->ifa_flags & IFF_BROADCAST) {
115 sin = (struct sockaddr_in *)ifa->ifa_broadaddr;
116 if (sin != NULL && sin->sin_addr.s_addr != 0)
117 printf(" broadcast %s", inet_ntoa(sin->sin_addr));
120 print_vhid(ifa, " ");
125 #define SIN(x) ((struct sockaddr_in *) &(x))
126 static struct sockaddr_in *sintab[] = {
127 SIN(in_ridreq.ifr_addr), SIN(in_addreq.ifra_addr),
128 SIN(in_addreq.ifra_mask), SIN(in_addreq.ifra_broadaddr)
132 in_getaddr(const char *s, int which)
134 struct sockaddr_in *sin = sintab[which];
138 sin->sin_len = sizeof(*sin);
139 sin->sin_family = AF_INET;
144 if((p = strrchr(s, '/')) != NULL) {
146 /* address is `name/masklen' */
148 struct sockaddr_in *min = sintab[MASK];
150 if (!isdigit(*(p + 1)))
153 masklen = (int)strtonum(p + 1, 0, 32, &errstr);
154 if (errstr != NULL) {
156 errx(1, "%s: bad value (width %s)", s, errstr);
158 min->sin_family = AF_INET;
159 min->sin_len = sizeof(*min);
160 min->sin_addr.s_addr = htonl(~((1LL << (32 - masklen)) - 1) &
165 if (inet_aton(s, &sin->sin_addr))
167 if ((hp = gethostbyname(s)) != NULL)
168 bcopy(hp->h_addr, (char *)&sin->sin_addr,
169 MIN((size_t)hp->h_length, sizeof(sin->sin_addr)));
170 else if ((np = getnetbyname(s)) != NULL)
171 sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
173 errx(1, "%s: bad value", s);
177 in_status_tunnel(int s)
179 char src[NI_MAXHOST];
180 char dst[NI_MAXHOST];
182 const struct sockaddr *sa = (const struct sockaddr *) &ifr.ifr_addr;
184 memset(&ifr, 0, sizeof(ifr));
185 strlcpy(ifr.ifr_name, name, IFNAMSIZ);
187 if (ioctl(s, SIOCGIFPSRCADDR, (caddr_t)&ifr) < 0)
189 if (sa->sa_family != AF_INET)
191 if (getnameinfo(sa, sa->sa_len, src, sizeof(src), 0, 0, NI_NUMERICHOST) != 0)
194 if (ioctl(s, SIOCGIFPDSTADDR, (caddr_t)&ifr) < 0)
196 if (sa->sa_family != AF_INET)
198 if (getnameinfo(sa, sa->sa_len, dst, sizeof(dst), 0, 0, NI_NUMERICHOST) != 0)
201 printf("\ttunnel inet %s --> %s\n", src, dst);
205 in_set_tunnel(int s, struct addrinfo *srcres, struct addrinfo *dstres)
207 struct in_aliasreq addreq;
209 memset(&addreq, 0, sizeof(addreq));
210 strlcpy(addreq.ifra_name, name, IFNAMSIZ);
211 memcpy(&addreq.ifra_addr, srcres->ai_addr, srcres->ai_addr->sa_len);
212 memcpy(&addreq.ifra_dstaddr, dstres->ai_addr, dstres->ai_addr->sa_len);
214 if (ioctl(s, SIOCSIFPHYADDR, &addreq) < 0)
215 warn("SIOCSIFPHYADDR");
218 static struct afswtch af_inet = {
221 .af_status = in_status,
222 .af_getaddr = in_getaddr,
223 .af_status_tunnel = in_status_tunnel,
224 .af_settunnel = in_set_tunnel,
225 .af_difaddr = SIOCDIFADDR,
226 .af_aifaddr = SIOCAIFADDR,
227 .af_ridreq = &in_ridreq,
228 .af_addreq = &in_addreq,
231 static __constructor void
236 if (!feature_present("inet"))
239 af_register(&af_inet);