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 $
29 * $DragonFly: src/sbin/ifconfig/ifcarp.c,v 1.1 2007/08/16 20:03:55 dillon Exp $
32 #include <sys/param.h>
33 #include <sys/ioctl.h>
34 #include <sys/socket.h>
35 #include <sys/sockio.h>
40 #include <net/ethernet.h>
42 #include <netinet/ip_carp.h>
43 #include <net/route.h>
55 static const char *carp_states[] = { CARP_STATES };
57 void carp_status(int s);
58 void setcarp_advbase(const char *,int, int, const struct afswtch *rafp);
59 void setcarp_advskew(const char *, int, int, const struct afswtch *rafp);
60 void setcarp_passwd(const char *, int, int, const struct afswtch *rafp);
61 void setcarp_vhid(const char *, int, int, const struct afswtch *rafp);
69 memset((char *)&carpr, 0, sizeof(struct carpreq));
70 ifr.ifr_data = (caddr_t)&carpr;
72 if (ioctl(s, SIOCGVH, (caddr_t)&ifr) == -1)
75 if (carpr.carpr_vhid > 0) {
76 if (carpr.carpr_state > CARP_MAXSTATE)
79 state = carp_states[carpr.carpr_state];
81 printf("\tcarp: %s vhid %d advbase %d advskew %d\n",
82 state, carpr.carpr_vhid, carpr.carpr_advbase,
91 setcarp_passwd(const char *val, int d, int s, const struct afswtch *afp)
95 memset((char *)&carpr, 0, sizeof(struct carpreq));
96 ifr.ifr_data = (caddr_t)&carpr;
98 if (ioctl(s, SIOCGVH, (caddr_t)&ifr) == -1)
101 /* XXX Should hash the password into the key here, perhaps? */
102 strlcpy(carpr.carpr_key, val, CARP_KEY_LEN);
104 if (ioctl(s, SIOCSVH, (caddr_t)&ifr) == -1)
111 setcarp_vhid(const char *val, int d, int s, const struct afswtch *afp)
114 struct carpreq carpr;
119 errx(1, "vhid must be greater than 0");
121 memset((char *)&carpr, 0, sizeof(struct carpreq));
122 ifr.ifr_data = (caddr_t)&carpr;
124 if (ioctl(s, SIOCGVH, (caddr_t)&ifr) == -1)
127 carpr.carpr_vhid = vhid;
129 if (ioctl(s, SIOCSVH, (caddr_t)&ifr) == -1)
136 setcarp_advskew(const char *val, int d, int s, const struct afswtch *afp)
139 struct carpreq carpr;
143 memset((char *)&carpr, 0, sizeof(struct carpreq));
144 ifr.ifr_data = (caddr_t)&carpr;
146 if (ioctl(s, SIOCGVH, (caddr_t)&ifr) == -1)
149 carpr.carpr_advskew = advskew;
151 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)
179 static struct cmd carp_cmds[] = {
180 DEF_CMD_ARG("advbase", setcarp_advbase),
181 DEF_CMD_ARG("advskew", setcarp_advskew),
182 DEF_CMD_ARG("pass", setcarp_passwd),
183 DEF_CMD_ARG("vhid", setcarp_vhid),
185 static struct afswtch af_carp = {
186 .af_name = "af_carp",
188 .af_other_status = carp_status,
191 static __constructor void
194 #define N(a) (sizeof(a) / sizeof(a[0]))
197 for (i = 0; i < N(carp_cmds); i++)
198 cmd_register(&carp_cmds[i]);
199 af_register(&af_carp);