646 lines
22 KiB
Diff
646 lines
22 KiB
Diff
Submitted By: Armin K. <krejzi at email dot com>
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Date: 2012-08-14
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Initial Package Version: 4.2.4-P1
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Upstream Status: Rejected by upstream.
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Origin: Based on Debian's dhclient-script, but modified for BLFS
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Tanım: This patch replaces original linux script for dhcp client with
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better one which is based on Debian's dhclient-script, but modified
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to be used on LFS/BLFS. It also removes net-tools dependency.
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--- a/client/scripts/linux 2014-07-09 20:26:40.000000000 +0200
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+++ b/client/scripts/linux 2014-08-12 01:21:02.858998828 +0200
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@@ -1,316 +1,346 @@
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#!/bin/bash
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+
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# dhclient-script for Linux. Dan Halbert, March, 1997.
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# Updated for Linux 2.[12] by Brian J. Murrell, January 1999.
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-# No guarantees about this. I'm a novice at the details of Linux
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-# networking.
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-
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-# Notes:
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-
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-# 0. This script is based on the netbsd script supplied with dhcp-970306.
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-
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-# 1. ifconfig down apparently deletes all relevant routes and flushes
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-# the arp cache, so this doesn't need to be done explicitly.
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-
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-# 2. The alias address handling here has not been tested AT ALL.
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-# I'm just going by the doc of modern Linux ip aliasing, which uses
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-# notations like eth0:0, eth0:1, for each alias.
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+# Modified for Debian. Matt Zimmerman and Eloy Paris, December 2003
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+# Modified to remove useless tests for antiquated kernel versions that
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+# this doesn't even work with anyway, and introduces a dependency on /usr
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+# being mounted, which causes cosmetic errors on hosts that NFS mount /usr
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+# Andrew Pollock, February 2005
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+# Modified to work on point-to-point links. Andrew Pollock, June 2005
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+# Modified to support passing the parameters called with to the hooks. Andrew Pollock, November 2005
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+# Modified to use the script with Linux From Scratch by Armin K., May 2012
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-# 3. I have to calculate the network address, and calculate the broadcast
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-# address if it is not supplied. This might be much more easily done
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-# by the dhclient C code, and passed on.
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-
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-# 4. TIMEOUT not tested. ping has a flag I don't know, and I'm suspicious
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-# of the $1 in its args.
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-
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-# 'ip' just looks too weird. /sbin/ip looks less weird.
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-ip=/sbin/ip
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+# The alias handling in here probably still sucks. -mdz
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+# update /etc/resolv.conf based on received values
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make_resolv_conf() {
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- if [ x"$new_domain_name_servers" != x ]; then
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- cat /dev/null > /etc/resolv.conf.dhclient
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- chmod 644 /etc/resolv.conf.dhclient
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- if [ x"$new_domain_search" != x ]; then
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- echo search $new_domain_search >> /etc/resolv.conf.dhclient
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- elif [ x"$new_domain_name" != x ]; then
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- # Note that the DHCP 'Domain Name Option' is really just a domain
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- # name, and that this practice of using the domain name option as
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- # a search path is both nonstandard and deprecated.
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- echo search $new_domain_name >> /etc/resolv.conf.dhclient
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- fi
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- for nameserver in $new_domain_name_servers; do
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- echo nameserver $isimserver >>/etc/resolv.conf.dhclient
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- done
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-
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- mv /etc/resolv.conf.dhclient /etc/resolv.conf
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- elif [ "x${new_dhcp6_name_servers}" != x ] ; then
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- cat /dev/null > /etc/resolv.conf.dhclient6
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- chmod 644 /etc/resolv.conf.dhclient6
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+ local new_resolv_conf
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- if [ "x${new_dhcp6_domain_search}" != x ] ; then
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- echo search ${new_dhcp6_domain_search} >> /etc/resolv.conf.dhclient6
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+ # DHCPv4
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+ if [ -n "$new_domain_search" ] || [ -n "$new_domain_name" ] ||
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+ [ -n "$new_domain_name_servers" ]; then
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+ new_resolv_conf=/etc/resolv.conf.dhclient-new
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+ rm -f $new_resolv_conf
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+
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+ if [ -n "$new_domain_name" ]; then
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+ echo domain ${new_domain_name%% *} >>$new_resolv_conf
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+ fi
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+
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+ if [ -n "$new_domain_search" ]; then
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+ if [ -n "$new_domain_name" ]; then
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+ domain_in_search_list=""
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+ for domain in $new_domain_search; do
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+ if [ "$domain" = "${new_domain_name}" ] ||
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+ [ "$domain" = "${new_domain_name}." ]; then
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+ domain_in_search_list="Yes"
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+ fi
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+ done
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+ if [ -z "$domain_in_search_list" ]; then
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+ new_domain_search="$new_domain_name $new_domain_search"
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+ fi
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+ fi
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+ echo "search ${new_domain_search}" >> $new_resolv_conf
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+ elif [ -n "$new_domain_name" ]; then
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+ echo "search ${new_domain_name}" >> $new_resolv_conf
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+ fi
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+
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+ if [ -n "$new_domain_name_servers" ]; then
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+ for nameserver in $new_domain_name_servers; do
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+ echo nameserver $isimserver >>$new_resolv_conf
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+ done
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+ else # keep 'old' nameservers
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+ sed -n /^\w*[Nn][Aa][Mm][Ee][Ss][Ee][Rr][Vv][Ee][Rr]/p /etc/resolv.conf >>$new_resolv_conf
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+ fi
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+
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+ chown --reference=/etc/resolv.conf $new_resolv_conf
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+ chmod --reference=/etc/resolv.conf $new_resolv_conf
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+ mv -f $new_resolv_conf /etc/resolv.conf
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+ # DHCPv6
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+ elif [ -n "$new_dhcp6_domain_search" ] || [ -n "$new_dhcp6_name_servers" ]; then
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+ new_resolv_conf=/etc/resolv.conf.dhclient-new
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+ rm -f $new_resolv_conf
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+
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+ if [ -n "$new_dhcp6_domain_search" ]; then
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+ echo "search ${new_dhcp6_domain_search}" >> $new_resolv_conf
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+ fi
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+
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+ if [ -n "$new_dhcp6_name_servers" ]; then
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+ for nameserver in $new_dhcp6_name_servers; do
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+ # append %interface to link-local-address nameservers
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+ if [ "${nameserver##fe80::}" != "$isimserver" ] ||
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+ [ "${nameserver##FE80::}" != "$isimserver" ]; then
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+ nameserver="${nameserver}%${interface}"
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+ fi
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+ echo nameserver $isimserver >>$new_resolv_conf
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+ done
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+ else # keep 'old' nameservers
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+ sed -n /^\w*[Nn][Aa][Mm][Ee][Ss][Ee][Rr][Vv][Ee][Rr]/p /etc/resolv.conf >>$new_resolv_conf
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+ fi
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+
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+ chown --reference=/etc/resolv.conf $new_resolv_conf
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+ chmod --reference=/etc/resolv.conf $new_resolv_conf
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+ mv -f $new_resolv_conf /etc/resolv.conf
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fi
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- shopt -s nocasematch
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- for nameserver in ${new_dhcp6_name_servers} ; do
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- # If the nameserver has a link-local address
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- # add a <zone_id> (interface name) to it.
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- if [[ "$isimserver" =~ ^fe80:: ]]
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- then
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- zone_id="%$interface"
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- else
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- zone_id=
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- fi
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- echo nameserver ${nameserver}$zone_id >> /etc/resolv.conf.dhclient6
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- done
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- shopt -u nocasematch
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+}
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- mv /etc/resolv.conf.dhclient6 /etc/resolv.conf
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- fi
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+# set host name
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+set_hostname() {
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+ local current_hostname
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+
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+ if [ -n "$new_host_name" ]; then
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+ current_hostisim=$(hostname)
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+
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+ # current host name is empty, '(none)' or 'localhost' or differs from new one from DHCP
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+ if [ -z "$current_hostname" ] ||
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+ [ "$current_hostname" = '(none)' ] ||
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+ [ "$current_hostname" = 'localhost' ] ||
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+ [ "$current_hostname" = "$old_host_name" ]; then
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+ if [ "$new_host_name" != "$old_host_name" ]; then
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+ hostname "$new_host_name"
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+ fi
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+ fi
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+ fi
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}
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-# Must be used on exit. Invokes the local dhcp client exit hooks, if any.
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+# Must be used on exit. Invokes the local dhcp client exit hooks, if any.
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exit_with_hooks() {
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exit_status=$1
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- if [ -f /etc/dhclient-exit-hooks ]; then
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- . /etc/dhclient-exit-hooks
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+ if [ -f /etc/dhcp/dhclient-exit-hooks ]; then
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+ . /etc/dhcp/dhclient-exit-hooks
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fi
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-# probably should do something with exit status of the local script
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exit $exit_status
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}
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+# The 576 MTU is only used for X.25 and dialup connections
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+# where the admin wants low latency. Such a low MTU can cause
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+# problems with UDP traffic, among other things. As such,
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+# disallow MTUs from 576 and below by default, so that broken
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+# MTUs are ignored, but higher stuff is allowed (1492, 1500, etc).
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+if [ -z "$new_interface_mtu" ] || [ "$new_interface_mtu" -le 576 ]; then
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+ new_interface_mtu=''
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+fi
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+
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+# The action starts here
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+
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# Invoke the local dhcp client enter hooks, if they exist.
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-if [ -f /etc/dhclient-enter-hooks ]; then
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+if [ -f /etc/dhcp/dhclient-enter-hooks ]; then
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exit_status=0
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- . /etc/dhclient-enter-hooks
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- # allow the local script to abort processing of this state
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- # local script must set exit_status variable to nonzero.
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+ . /etc/dhcp/dhclient-enter-hooks
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if [ $exit_status -ne 0 ]; then
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exit $exit_status
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fi
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fi
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-###
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-### DHCPv4 Handlers
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-###
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-
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-if [ x$new_broadcast_address != x ]; then
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- new_broadcast_arg="broadcast $new_broadcast_address"
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-fi
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-if [ x$old_broadcast_address != x ]; then
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- old_broadcast_arg="broadcast $old_broadcast_address"
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-fi
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-if [ x$new_subnet_mask != x ]; then
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- new_subnet_arg="netmask $new_subnet_mask"
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-fi
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-if [ x$old_subnet_mask != x ]; then
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- old_subnet_arg="netmask $old_subnet_mask"
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-fi
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-if [ x$alias_subnet_mask != x ]; then
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- alias_subnet_arg="netmask $alias_subnet_mask"
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-fi
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-if [ x$new_interface_mtu != x ]; then
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- mtu_arg="mtu $new_interface_mtu"
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-fi
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-if [ x$IF_METRIC != x ]; then
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- metric_arg="metric $IF_METRIC"
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-fi
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-
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-if [ x$reason = xMEDIUM ]; then
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- # Linux doesn't do mediums (ok, ok, media).
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- exit_with_hooks 0
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-fi
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-
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-if [ x$reason = xPREINIT ]; then
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- if [ x$alias_ip_address != x ]; then
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- # Bring down alias interface. Its routes will disappear too.
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- ifconfig $interface:0- inet 0
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- fi
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- ifconfig $interface 0 up
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-
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- # We need to give the kernel some time to get the interface up.
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- sleep 1
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-
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- exit_with_hooks 0
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-fi
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-
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-if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
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- exit_with_hooks 0
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-fi
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-
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-if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
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- [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
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- current_hostisim=`hostname`
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- if [ x$current_hostname = x ] || \
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- [ x$current_hostname = "x(none)" ] || \
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- [ x$current_hostname = xlocalhost ] || \
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- [ x$current_hostname = x$old_host_name ]; then
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- if [ x$new_host_name != x$old_host_name ]; then
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- hostname "$new_host_name"
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- fi
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- fi
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-
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- if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
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- [ x$alias_ip_address != x$old_ip_address ]; then
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- # Possible new alias. Remove old alias.
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- ifconfig $interface:0- inet 0
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- fi
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- if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]; then
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- # IP address changed. Bringing down the interface will delete all routes,
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- # and clear the ARP cache.
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- ifconfig $interface inet 0 down
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-
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- fi
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- if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
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- [ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
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-
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- ifconfig $interface inet $new_ip_address $new_subnet_arg \
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- $new_broadcast_arg $mtu_arg
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- # Add a network route to the computed network address.
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- for router in $new_routers; do
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- if [ "x$new_subnet_mask" = "x255.255.255.255" ] ; then
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- route add -host $router dev $interface
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- fi
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- route add default gw $router $metric_arg dev $interface
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- done
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- else
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- # we haven't changed the address, have we changed other options
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- # that we wish to update?
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- if [ x$new_routers != x ] && [ x$new_routers != x$old_routers ] ; then
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- # if we've changed routers delete the old and add the new.
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- for router in $old_routers; do
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- route del default gw $router
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- done
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- for router in $new_routers; do
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- if [ "x$new_subnet_mask" = "x255.255.255.255" ] ; then
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- route add -host $router dev $interface
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- fi
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- route add default gw $router $metric_arg dev $interface
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- done
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- fi
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- fi
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- if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
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- then
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- ifconfig $interface:0- inet 0
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- ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
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- route add -host $alias_ip_address $interface:0
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- fi
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- make_resolv_conf
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- exit_with_hooks 0
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-fi
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-
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-if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
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- || [ x$reason = xSTOP ]; then
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- if [ x$alias_ip_address != x ]; then
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- # Turn off alias interface.
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- ifconfig $interface:0- inet 0
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- fi
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- if [ x$old_ip_address != x ]; then
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- # Shut down interface, which will delete routes and clear arp cache.
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- ifconfig $interface inet 0 down
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- fi
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- if [ x$alias_ip_address != x ]; then
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- ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
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- route add -host $alias_ip_address $interface:0
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- fi
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- exit_with_hooks 0
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-fi
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-
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-if [ x$reason = xTIMEOUT ]; then
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- if [ x$alias_ip_address != x ]; then
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- ifconfig $interface:0- inet 0
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- fi
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- ifconfig $interface inet $new_ip_address $new_subnet_arg \
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- $new_broadcast_arg $mtu_arg
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- set $new_routers
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- if ping -q -c 1 $1; then
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- if [ x$new_ip_address != x$alias_ip_address ] && \
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- [ x$alias_ip_address != x ]; then
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- ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
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- route add -host $alias_ip_address dev $interface:0
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- fi
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- for router in $new_routers; do
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- if [ "x$new_subnet_mask" = "x255.255.255.255" ] ; then
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- route add -host $router dev $interface
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- fi
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- route add default gw $router $metric_arg dev $interface
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- done
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- make_resolv_conf
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- exit_with_hooks 0
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- fi
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- ifconfig $interface inet 0 down
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- exit_with_hooks 1
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-fi
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-
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-###
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-### DHCPv6 Handlers
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-###
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-
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-if [ x$reason = xPREINIT6 ] ; then
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- # Ensure interface is up.
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- ${ip} link set ${interface} up
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-
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- # Remove any stale addresses from aborted clients.
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- ${ip} -f inet6 addr flush dev ${interface} scope global permanent
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-
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- exit_with_hooks 0
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-fi
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-
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-if [ x${old_ip6_prefix} != x ] || [ x${new_ip6_prefix} != x ] ; then
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- echo Prefix ${reason} old=${old_ip6_prefix} new=${new_ip6_prefix}
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+# Execute the operation
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+case "$reason" in
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- exit_with_hooks 0
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-fi
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-
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-if [ x$reason = xBOUND6 ] ; then
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- if [ x${new_ip6_address} = x ] || [ x${new_ip6_prefixlen} = x ] ; then
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- exit_with_hooks 2;
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- fi
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+ ### DHCPv4 Handlers
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- ${ip} -f inet6 addr add ${new_ip6_address}/${new_ip6_prefixlen} \
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- dev ${interface} scope global
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+ MEDIUM|ARPCHECK|ARPSEND)
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+ # Do nothing
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+ ;;
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+ PREINIT)
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+ # The DHCP client is requesting that an interface be
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+ # configured as required in order to send packets prior to
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+ # receiving an actual address. - dhclient-script(8)
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+
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+ # ensure interface is up
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+ ip link set dev ${interface} up
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+
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+ if [ -n "$alias_ip_address" ]; then
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+ # flush alias IP from interface
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+ ip -4 addr flush dev ${interface} label ${interface}:0
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+ fi
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+
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+ ;;
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+
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+ BOUND|RENEW|REBIND|REBOOT)
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+ set_hostname
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+
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+ if [ -n "$old_ip_address" ] && [ -n "$alias_ip_address" ] &&
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+ [ "$alias_ip_address" != "$old_ip_address" ]; then
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+ # alias IP may have changed => flush it
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+ ip -4 addr flush dev ${interface} label ${interface}:0
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+ fi
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+
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+ if [ -n "$old_ip_address" ] &&
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+ [ "$old_ip_address" != "$new_ip_address" ]; then
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+ # leased IP has changed => flush it
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+ ip -4 addr flush dev ${interface} label ${interface}
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+ fi
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+
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+ if [ -z "$old_ip_address" ] ||
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+ [ "$old_ip_address" != "$new_ip_address" ] ||
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+ [ "$reason" = "BOUND" ] || [ "$reason" = "REBOOT" ]; then
|
||
+ # new IP has been leased or leased IP changed => set it
|
||
+ ip -4 addr add ${new_ip_address}${new_subnet_mask:+/$new_subnet_mask} \
|
||
+ ${new_broadcast_address:+broadcast $new_broadcast_address} \
|
||
+ dev ${interface} label ${interface}
|
||
+
|
||
+ if [ -n "$new_interface_mtu" ]; then
|
||
+ # set MTU
|
||
+ ip link set dev ${interface} mtu ${new_interface_mtu}
|
||
+ fi
|
||
+
|
||
+ # set if_metric if IF_METRIC is set or there's more than one router
|
||
+ if_metric="$IF_METRIC"
|
||
+ if [ "${new_routers%% *}" != "${new_routers}" ]; then
|
||
+ if_metric=${if_metric:-1}
|
||
+ fi
|
||
+
|
||
+ for router in $new_routers; do
|
||
+ if [ "$new_subnet_mask" = "255.255.255.255" ]; then
|
||
+ # point-to-point connection => set explicit route
|
||
+ ip -4 route add ${router} dev $interface >/dev/null 2>&1
|
||
+ fi
|
||
+
|
||
+ # set default route
|
||
+ ip -4 route add default via ${router} dev ${interface} \
|
||
+ ${if_metric:+metric $if_metric} >/dev/null 2>&1
|
||
+
|
||
+ if [ -n "$if_metric" ]; then
|
||
+ if_metric=$((if_metric+1))
|
||
+ fi
|
||
+ done
|
||
+ fi
|
||
+
|
||
+ if [ -n "$alias_ip_address" ] &&
|
||
+ [ "$new_ip_address" != "$alias_ip_address" ]; then
|
||
+ # separate alias IP given, which may have changed
|
||
+ # => flush it, set it & add host route to it
|
||
+ ip -4 addr flush dev ${interface} label ${interface}:0
|
||
+ ip -4 addr add ${alias_ip_address}${alias_subnet_mask:+/$alias_subnet_mask} \
|
||
+ dev ${interface} label ${interface}:0
|
||
+ ip -4 route add ${alias_ip_address} dev ${interface} >/dev/null 2>&1
|
||
+ fi
|
||
+
|
||
+ # update /etc/resolv.conf
|
||
+ make_resolv_conf
|
||
+
|
||
+ ;;
|
||
+
|
||
+ EXPIRE|FAIL|RELEASE|STOP)
|
||
+ if [ -n "$alias_ip_address" ]; then
|
||
+ # flush alias IP
|
||
+ ip -4 addr flush dev ${interface} label ${interface}:0
|
||
+ fi
|
||
+
|
||
+ if [ -n "$old_ip_address" ]; then
|
||
+ # flush leased IP
|
||
+ ip -4 addr flush dev ${interface} label ${interface}
|
||
+ fi
|
||
+
|
||
+ if [ -n "$alias_ip_address" ]; then
|
||
+ # alias IP given => set it & add host route to it
|
||
+ ip -4 addr add ${alias_ip_address}${alias_network_arg} \
|
||
+ dev ${interface} label ${interface}:0
|
||
+ ip -4 route add ${alias_ip_address} dev ${interface} >/dev/null 2>&1
|
||
+ fi
|
||
+
|
||
+ ;;
|
||
+
|
||
+ TIMEOUT)
|
||
+ if [ -n "$alias_ip_address" ]; then
|
||
+ # flush alias IP
|
||
+ ip -4 addr flush dev ${interface} label ${interface}:0
|
||
+ fi
|
||
+
|
||
+ # set IP from recorded lease
|
||
+ ip -4 addr add ${new_ip_address}${new_subnet_mask:+/$new_subnet_mask} \
|
||
+ ${new_broadcast_address:+broadcast $new_broadcast_address} \
|
||
+ dev ${interface} label ${interface}
|
||
+
|
||
+ if [ -n "$new_interface_mtu" ]; then
|
||
+ # set MTU
|
||
+ ip link set dev ${interface} mtu ${new_interface_mtu}
|
||
+ fi
|
||
+
|
||
+ # if there is no router recorded in the lease or the 1st router answers pings
|
||
+ if [ -z "$new_routers" ] || ping -q -c 1 "${new_routers%% *}"; then
|
||
+ if [ -n "$alias_ip_address" ] &&
|
||
+ [ "$new_ip_address" != "$alias_ip_address" ]; then
|
||
+ # separate alias IP given => set up the alias IP & add host route to it
|
||
+ ip -4 addr add ${alias_ip_address}${alias_subnet_mask:+/$alias_subnet_mask} \
|
||
+ dev ${interface} label ${interface}:0
|
||
+ ip -4 route add ${alias_ip_address} dev ${interface} >/dev/null 2>&1
|
||
+ fi
|
||
+
|
||
+ # set if_metric if IF_METRIC is set or there's more than one router
|
||
+ if_metric="$IF_METRIC"
|
||
+ if [ "${new_routers%% *}" != "${new_routers}" ]; then
|
||
+ if_metric=${if_metric:-1}
|
||
+ fi
|
||
+
|
||
+ # set default route
|
||
+ for router in $new_routers; do
|
||
+ ip -4 route add default via ${router} dev ${interface} \
|
||
+ ${if_metric:+metric $if_metric} >/dev/null 2>&1
|
||
+
|
||
+ if [ -n "$if_metric" ]; then
|
||
+ if_metric=$((if_metric+1))
|
||
+ fi
|
||
+ done
|
||
+
|
||
+ # update /etc/resolv.conf
|
||
+ make_resolv_conf
|
||
+ else
|
||
+ # flush all IPs from interface
|
||
+ ip -4 addr flush dev ${interface}
|
||
+ exit_with_hooks 1
|
||
+ fi
|
||
+
|
||
+ ;;
|
||
+
|
||
+ ### DHCPv6 Handlers
|
||
+ # TODO handle prefix change: ?based on ${old_ip6_prefix} and ${new_ip6_prefix}?
|
||
+
|
||
+ PREINIT6)
|
||
+ # ensure interface is up
|
||
+ ip link set ${interface} up
|
||
+
|
||
+ # flush any stale global permanent IPs from interface
|
||
+ ip -6 addr flush dev ${interface} scope global permanent
|
||
+
|
||
+ ;;
|
||
+
|
||
+ BOUND6|RENEW6|REBIND6)
|
||
+ if [ "${new_ip6_address}" ] && [ "${new_ip6_prefixlen}" ]; then
|
||
+ # set leased IP
|
||
+ ip -6 addr add ${new_ip6_address}/${new_ip6_prefixlen} \
|
||
+ dev ${interface} scope global
|
||
+ fi
|
||
+
|
||
+ # update /etc/resolv.conf
|
||
+ if [ "${reason}" = BOUND6 ] ||
|
||
+ [ "${new_dhcp6_name_servers}" != "${old_dhcp6_name_servers}" ] ||
|
||
+ [ "${new_dhcp6_domain_search}" != "${old_dhcp6_domain_search}" ]; then
|
||
+ make_resolv_conf
|
||
+ fi
|
||
+
|
||
+ ;;
|
||
+
|
||
+ DEPREF6)
|
||
+ if [ -z "${cur_ip6_prefixlen}" ]; then
|
||
+ exit_with_hooks 1
|
||
+ fi
|
||
+
|
||
+ # set preferred lifetime of leased IP to 0
|
||
+ ip -6 addr change ${cur_ip6_address}/${cur_ip6_prefixlen} \
|
||
+ dev ${interface} scope global preferred_lft 0
|
||
+
|
||
+ ;;
|
||
+
|
||
+ EXPIRE6|RELEASE6|STOP6)
|
||
+ if [ -z "${old_ip6_address}" ] || [ -z "${old_ip6_prefixlen}" ]; then
|
||
+ exit_with_hooks 1
|
||
+ fi
|
||
+
|
||
+ # delete leased IP
|
||
+ ip -6 addr del ${old_ip6_address}/${old_ip6_prefixlen} \
|
||
+ dev ${interface}
|
||
|
||
- # Check for nameserver options.
|
||
- make_resolv_conf
|
||
-
|
||
- exit_with_hooks 0
|
||
-fi
|
||
-
|
||
-if [ x$reason = xRENEW6 ] || [ x$reason = xREBIND6 ] ; then
|
||
- if [ x${new_ip6_address} != x ] && [ x${new_ip6_prefixlen} != x ] ; then
|
||
- ${ip} -f inet6 addr add ${new_ip6_address}/${new_ip6_prefixlen} \
|
||
- dev ${interface} scope global
|
||
- fi
|
||
-
|
||
- # Make sure nothing has moved around on us.
|
||
-
|
||
- # Nameservers/domains/etc.
|
||
- if [ "x${new_dhcp6_name_servers}" != "x${old_dhcp6_name_servers}" ] ||
|
||
- [ "x${new_dhcp6_domain_search}" != "x${old_dhcp6_domain_search}" ] ; then
|
||
- make_resolv_conf
|
||
- fi
|
||
-
|
||
- exit_with_hooks 0
|
||
-fi
|
||
-
|
||
-if [ x$reason = xDEPREF6 ] ; then
|
||
- if [ x${new_ip6_prefixlen} = x ] ; then
|
||
- exit_with_hooks 2;
|
||
- fi
|
||
-
|
||
- ${ip} -f inet6 addr change ${new_ip6_address}/${new_ip6_prefixlen} \
|
||
- dev ${interface} scope global preferred_lft 0
|
||
-
|
||
- exit_with_hooks 0
|
||
-fi
|
||
-
|
||
-if [ x$reason = xEXPIRE6 -o x$reason = xRELEASE6 -o x$reason = xSTOP6 ] ; then
|
||
- if [ x${old_ip6_address} = x ] || [ x${old_ip6_prefixlen} = x ] ; then
|
||
- exit_with_hooks 2;
|
||
- fi
|
||
-
|
||
- ${ip} -f inet6 addr del ${old_ip6_address}/${old_ip6_prefixlen} \
|
||
- dev ${interface}
|
||
-
|
||
- exit_with_hooks 0
|
||
-fi
|
||
+ ;;
|
||
+esac
|
||
|
||
exit_with_hooks 0
|