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ddfeb48652
replace with preprocessor checks in source files. Much simpler... Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
141 lines
3.6 KiB
C
141 lines
3.6 KiB
C
/*
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* Get interface's address and mask information by sysctl() function.
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* Copyright (C) 1997, 98 Kunihiro Ishiguro
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <zebra.h>
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#if !defined(GNU_LINUX) && !defined(OPEN_BSD) && !defined(SUNOS_5)
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#include "if.h"
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#include "sockunion.h"
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#include "prefix.h"
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#include "connected.h"
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#include "memory.h"
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#include "zebra_memory.h"
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#include "ioctl.h"
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#include "log.h"
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#include "interface.h"
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#include "vrf.h"
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#include "zebra/rt.h"
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#include "zebra/kernel_socket.h"
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#include "zebra/rib.h"
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void ifstat_update_sysctl(void)
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{
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caddr_t ref, buf, end;
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size_t bufsiz;
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struct if_msghdr *ifm;
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struct interface *ifp;
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#define MIBSIZ 6
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int mib[MIBSIZ] = {
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CTL_NET, PF_ROUTE, 0, 0, /* AF_INET & AF_INET6 */
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NET_RT_IFLIST, 0};
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/* Query buffer size. */
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if (sysctl(mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) {
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zlog_warn("sysctl() error by %s", safe_strerror(errno));
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return;
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}
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/* We free this memory at the end of this function. */
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ref = buf = XMALLOC(MTYPE_TMP, bufsiz);
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/* Fetch interface informations into allocated buffer. */
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if (sysctl(mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) {
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zlog_warn("sysctl error by %s", safe_strerror(errno));
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XFREE(MTYPE_TMP, ref);
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return;
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}
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/* Parse both interfaces and addresses. */
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for (end = buf + bufsiz; buf < end; buf += ifm->ifm_msglen) {
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ifm = (struct if_msghdr *)buf;
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if (ifm->ifm_type == RTM_IFINFO) {
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ifp = if_lookup_by_index(ifm->ifm_index, VRF_DEFAULT);
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if (ifp)
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ifp->stats = ifm->ifm_data;
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}
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}
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/* Free sysctl buffer. */
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XFREE(MTYPE_TMP, ref);
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return;
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}
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/* Interface listing up function using sysctl(). */
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void interface_list(struct zebra_ns *zns)
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{
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caddr_t ref, buf, end;
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size_t bufsiz;
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struct if_msghdr *ifm;
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#define MIBSIZ 6
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int mib[MIBSIZ] = {
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CTL_NET, PF_ROUTE, 0, 0, /* AF_INET & AF_INET6 */
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NET_RT_IFLIST, 0};
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if (zns->ns_id != NS_DEFAULT) {
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zlog_warn("interface_list: ignore NS %u", zns->ns_id);
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return;
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}
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/* Query buffer size. */
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if (sysctl(mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) {
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zlog_warn("sysctl() error by %s", safe_strerror(errno));
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return;
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}
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/* We free this memory at the end of this function. */
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ref = buf = XMALLOC(MTYPE_TMP, bufsiz);
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/* Fetch interface informations into allocated buffer. */
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if (sysctl(mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) {
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zlog_warn("sysctl error by %s", safe_strerror(errno));
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return;
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}
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/* Parse both interfaces and addresses. */
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for (end = buf + bufsiz; buf < end; buf += ifm->ifm_msglen) {
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ifm = (struct if_msghdr *)buf;
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switch (ifm->ifm_type) {
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case RTM_IFINFO:
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ifm_read(ifm);
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break;
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case RTM_NEWADDR:
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ifam_read((struct ifa_msghdr *)ifm);
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break;
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default:
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zlog_info("interfaces_list(): unexpected message type");
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XFREE(MTYPE_TMP, ref);
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return;
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break;
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}
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}
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/* Free sysctl buffer. */
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XFREE(MTYPE_TMP, ref);
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}
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#endif /* !defined(GNU_LINUX) && !defined(OPEN_BSD) && !defined(SUNOS_5) */
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