mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2026-01-02 00:40:11 +01:00
116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* NetworkManager -- Network link manager
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* (C) Copyright 2004 - 2010 Red Hat, Inc.
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* (C) Copyright 2006 Timothee Lecomte <timothee.lecomte@ens.fr>
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <errno.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <signal.h>
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#include <arpa/inet.h>
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#include <string.h>
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#include "NetworkManagerGeneric.h"
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#include "nm-system.h"
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#include "NetworkManagerUtils.h"
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#include "nm-logging.h"
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#include "nm-netlink-compat.h"
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#include "nm-netlink-monitor.h"
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#include "nm-netlink-utils.h"
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/* Because of a bug in libnl, rtnl.h should be included before route.h */
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#include <netlink/route/rtnl.h>
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#include <netlink/route/addr.h>
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#include <netlink/netlink.h>
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/*
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* nm_generic_enable_loopback
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*
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* Bring up the loopback interface
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*
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*/
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void nm_generic_enable_loopback (void)
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{
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struct nl_sock * nlh = NULL;
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struct rtnl_addr * addr = NULL;
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struct nl_addr * nl_addr = NULL;
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guint32 binaddr = 0;
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int iface_idx = -1;
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int err;
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nlh = nm_netlink_get_default_handle ();
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if (!nlh)
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return;
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iface_idx = nm_netlink_iface_to_index ("lo");
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if (iface_idx < 0)
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return;
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nm_system_iface_set_up (iface_idx, TRUE, NULL);
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addr = rtnl_addr_alloc ();
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if (!addr)
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return;
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binaddr = htonl (0x7f000001); /* 127.0.0.1 */
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nl_addr = nl_addr_build (AF_INET, &binaddr, sizeof(binaddr));
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if (!nl_addr)
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goto out;
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rtnl_addr_set_local (addr, nl_addr);
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nl_addr_put (nl_addr);
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binaddr = htonl (0x7fffffff); /* 127.255.255.255 */
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nl_addr = nl_addr_build (AF_INET, &binaddr, sizeof(binaddr));
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if (!nl_addr)
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goto out;
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rtnl_addr_set_broadcast (addr, nl_addr);
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nl_addr_put (nl_addr);
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rtnl_addr_set_prefixlen (addr, 8);
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rtnl_addr_set_ifindex (addr, iface_idx);
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rtnl_addr_set_scope (addr, RT_SCOPE_HOST);
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rtnl_addr_set_label (addr, "lo");
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if ((err = rtnl_addr_add (nlh, addr, 0)) < 0) {
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if (err != -EEXIST) {
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nm_log_warn (LOGD_CORE, "error setting loopback address: (%d) %s",
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err, nl_geterror (err));
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}
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}
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out:
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if (addr)
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rtnl_addr_put (addr);
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}
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/*
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* nm_generic_update_dns
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*
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* Make glibc/nscd aware of any changes to the resolv.conf file by
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* restarting nscd.
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*
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*/
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void nm_generic_update_dns (void)
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{
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}
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