2 * Copyright (c) 2002 Michael Shalayeff. All rights reserved.
3 * Copyright (c) 2003 Ryan McBride. 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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
18 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
22 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
23 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
24 * THE POSSIBILITY OF SUCH DAMAGE.
27 * $FreeBSD: src/sbin/ifconfig/ifcarp.c,v 1.2 2005/02/22 14:07:47 glebius Exp $
28 * $OpenBSD: ifconfig.c,v 1.82 2003/10/19 05:43:35 mcbride Exp $
31 #include <sys/param.h>
32 #include <sys/ioctl.h>
33 #include <sys/socket.h>
34 #include <sys/sockio.h>
36 #include <net/route.h>
37 #include <net/ethernet.h>
38 #include <netinet/in.h>
39 #include <netinet/ip_carp.h>
40 #include <arpa/inet.h>
52 static const char *carp_states[] = { CARP_STATES };
54 void carp_status(int s);
55 void setcarp_advbase(const char *,int, int, const struct afswtch *rafp);
56 void setcarp_advskew(const char *, int, int, const struct afswtch *rafp);
57 void setcarp_passwd(const char *, int, int, const struct afswtch *rafp);
58 void setcarp_vhid(const char *, int, int, const struct afswtch *rafp);
66 char devname[IFNAMSIZ];
68 memset((char *)&carpr, 0, sizeof(struct carpreq));
69 ifr.ifr_data = (caddr_t)&carpr;
71 if (ioctl(s, SIOCGVH, (caddr_t)&ifr) == -1)
74 if (carpr.carpr_vhid > 0) {
75 if (carpr.carpr_state > CARP_MAXSTATE)
78 state = carp_states[carpr.carpr_state];
80 printf("\tcarp: %s vhid %d advbase %d advskew %d\n",
81 state, carpr.carpr_vhid, carpr.carpr_advbase,
85 memset(&ifd, 0, sizeof(ifd));
86 strlcpy(ifd.ifd_name, ifr.ifr_name, sizeof(ifd.ifd_name));
87 ifd.ifd_cmd = CARPGDEVNAME;
88 ifd.ifd_len = sizeof(devname);
89 ifd.ifd_data = devname;
90 if (ioctl(s, SIOCGDRVSPEC, &ifd) < 0)
91 strlcpy(devname, "none", sizeof(devname));
92 if (devname[0] != '\0')
93 printf("\tcarpdev: %s\n", devname);
97 setcarp_passwd(const char *val, int d, int s, const struct afswtch *afp)
101 memset((char *)&carpr, 0, sizeof(struct carpreq));
102 ifr.ifr_data = (caddr_t)&carpr;
104 if (ioctl(s, SIOCGVH, (caddr_t)&ifr) == -1)
107 /* XXX Should hash the password into the key here, perhaps? */
108 strlcpy(carpr.carpr_key, val, CARP_KEY_LEN);
110 if (ioctl(s, SIOCSVH, (caddr_t)&ifr) == -1)
115 setcarp_vhid(const char *val, int d, int s, const struct afswtch *afp)
118 struct carpreq carpr;
123 errx(1, "vhid must be greater than 0");
125 memset((char *)&carpr, 0, sizeof(struct carpreq));
126 ifr.ifr_data = (caddr_t)&carpr;
128 if (ioctl(s, SIOCGVH, (caddr_t)&ifr) == -1)
131 carpr.carpr_vhid = vhid;
133 if (ioctl(s, SIOCSVH, (caddr_t)&ifr) == -1)
138 setcarp_advskew(const char *val, int d, int s, const struct afswtch *afp)
141 struct carpreq carpr;
145 memset((char *)&carpr, 0, sizeof(struct carpreq));
146 ifr.ifr_data = (caddr_t)&carpr;
148 if (ioctl(s, SIOCGVH, (caddr_t)&ifr) == -1)
151 carpr.carpr_advskew = advskew;
153 if (ioctl(s, SIOCSVH, (caddr_t)&ifr) == -1)
158 setcarp_advbase(const char *val, int d, int s, const struct afswtch *afp)
161 struct carpreq carpr;
165 memset((char *)&carpr, 0, sizeof(struct carpreq));
166 ifr.ifr_data = (caddr_t)&carpr;
168 if (ioctl(s, SIOCGVH, (caddr_t)&ifr) == -1)
171 carpr.carpr_advbase = advbase;
173 if (ioctl(s, SIOCSVH, (caddr_t)&ifr) == -1)
178 getcarp_vhaddr(const char *val, int d, int s, const struct afswtch *afp)
180 #define VHADDR_PFMT "%-15s %-15s %s\n"
183 struct ifcarpvhaddr *carpa;
186 memset(&ifd, 0, sizeof(ifd));
187 strlcpy(ifd.ifd_name, ifr.ifr_name, sizeof(ifd.ifd_name));
188 ifd.ifd_cmd = CARPGVHADDR;
189 if (ioctl(s, SIOCGDRVSPEC, &ifd) < 0)
191 if (ifd.ifd_len != 0) {
192 carpa = malloc(ifd.ifd_len);
196 ifd.ifd_cmd = CARPGVHADDR;
197 ifd.ifd_data = carpa;
198 if (ioctl(s, SIOCGDRVSPEC, &ifd) < 0) {
205 count = ifd.ifd_len / sizeof(*carpa);
207 printf(VHADDR_PFMT, "virtual addr", "backing addr", "flags");
208 for (i = 0; i < count; ++i) {
210 char baddr[INET_ADDRSTRLEN];
213 memset(flags, 0, sizeof(flags));
215 if (carpa[i].carpa_flags & CARP_VHAF_OWNER)
218 memset(baddr, 0, sizeof(baddr));
220 if (carpa[i].carpa_baddr.sin_addr.s_addr != INADDR_ANY) {
221 inet_ntop(AF_INET, &carpa[i].carpa_baddr.sin_addr,
222 baddr, sizeof(baddr));
225 printf(VHADDR_PFMT, inet_ntoa(carpa[i].carpa_addr.sin_addr),
234 static struct cmd carp_cmds[] = {
235 DEF_CMD_ARG("advbase", setcarp_advbase),
236 DEF_CMD_ARG("advskew", setcarp_advskew),
237 DEF_CMD_ARG("pass", setcarp_passwd),
238 DEF_CMD_ARG("vhid", setcarp_vhid),
239 DEF_CMD("vhaddr", 1, getcarp_vhaddr)
241 static struct afswtch af_carp = {
242 .af_name = "af_carp",
244 .af_other_status = carp_status,
247 static __constructor(101) void
252 for (i = 0; i < nitems(carp_cmds); i++)
253 cmd_register(&carp_cmds[i]);
254 af_register(&af_carp);