2 * Get interface's address and mask information by sysctl() function.
3 * Copyright (C) 1997, 98 Kunihiro Ishiguro
5 * This file is part of GNU Zebra.
7 * GNU Zebra is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Zebra; see the file COPYING. If not, write to the Free
19 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
26 #include "sockunion.h"
28 #include "connected.h"
34 ifstat_update_sysctl ()
36 caddr_t ref, buf, end;
38 struct if_msghdr *ifm;
39 struct interface *ifp;
47 0, /* AF_INET & AF_INET6 */
52 /* Query buffer size. */
53 if (sysctl (mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0)
55 zlog_warn ("sysctl() error by %s", strerror (errno));
59 /* We free this memory at the end of this function. */
60 ref = buf = XMALLOC (MTYPE_TMP, bufsiz);
62 /* Fetch interface informations into allocated buffer. */
63 if (sysctl (mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0)
65 zlog (NULL, LOG_WARNING, "sysctl error by %s", strerror (errno));
69 /* Parse both interfaces and addresses. */
70 for (end = buf + bufsiz; buf < end; buf += ifm->ifm_msglen)
72 ifm = (struct if_msghdr *) buf;
73 if (ifm->ifm_type == RTM_IFINFO)
75 ifp = if_lookup_by_index (ifm->ifm_index);
77 ifp->stats = ifm->ifm_data;
81 /* Free sysctl buffer. */
82 XFREE (MTYPE_TMP, ref);
87 /* Interface listing up function using sysctl(). */
91 caddr_t ref, buf, end;
93 struct if_msghdr *ifm;
94 int ifm_read (struct if_msghdr *);
95 int ifam_read (struct ifa_msghdr *);
103 0, /* AF_INET & AF_INET6 */
108 /* Query buffer size. */
109 if (sysctl (mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0)
111 zlog (NULL, LOG_WARNING, "sysctl() error by %s", strerror (errno));
115 /* We free this memory at the end of this function. */
116 ref = buf = XMALLOC (MTYPE_TMP, bufsiz);
118 /* Fetch interface informations into allocated buffer. */
119 if (sysctl (mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0)
121 zlog (NULL, LOG_WARNING, "sysctl error by %s", strerror (errno));
125 /* Parse both interfaces and addresses. */
126 for (end = buf + bufsiz; buf < end; buf += ifm->ifm_msglen)
128 ifm = (struct if_msghdr *) buf;
130 switch (ifm->ifm_type)
136 ifam_read ((struct ifa_msghdr *) ifm);
139 zlog_info ("interfaces_list(): unexpected message type");
140 XFREE (MTYPE_TMP, ref);
146 /* Free sysctl buffer. */
147 XFREE (MTYPE_TMP, ref);