Attachment 602343 Details for Bug 626514 – dhclient autoconfiguration script

dhclient autoconfiguration script

radvd-script.sh (text/plain), 4.03 KB, created by Hrvoje on 2012-08-05 09:42:05 UTC

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Creator: Hrvoje

Created: 2012-08-05 09:42:05 UTC

Size: 4.03 KB

patch

obsolete

>#!/bin/bash
>
># by Hrvoje
>#
># This script should setup radvd and dhcpd6.
>#
># radvd is setup in a way best suited fo dinamic PD. This means that there
># is no presistent PD, so special care must be taken to avoid causing multiple
># assigments on clients. To be precise, we must ensure that all old RA must
># be deprecieted. Also, because isp gives to up PD for specific time, we must
># ensure that clients do not cling on with old addresses. This is done using
># DeprecatePrefix and DecrementLifetimes options.
>#
># Also, windows clients do not pickup DNS from RA. So, for them, we must setup
># dhcpd6, to work correctly.
>#
># NOTE: script assumes that pppd machine also have DNS proxy, so for DNS address
># it uses LL addresses. If this is not desired, change variables bellow.
>#
>
>
>/usr/sbin/dhclient-script "$@"
>
>myname=`basename $0`
>
>if [ -f "/etc/sysconfig/network-scripts/ifcfg-$interface" ] ; then
>  . /etc/sysconfig/network-scripts/ifcfg-$interface
>fi
>
>if [ -z "$IPV6_DP_IFNAME" ] ; then
>  exit 0
>fi
>
>if [ -z "$IPV6_RADVD_PIDFILE" ] ; then
>  IPV6_RADVD_PIDFILE="/var/run/radvd/radvd-$IPV6_DP_IFNAME.pid"
>fi
>
>if [ -z "$IPV6_DHCPD_PID" ] ; then
>  IPV6_DHCPD_PID="/var/run/dhcpd6-$IPV6_DP_IFNAME.pid"
>fi
>
>if [ -z "$IPV6_DHCPD_LEASES" ] ; then
>  IPV6_DHCPD_LEASES="/var/lib/dhcpd/dhcpd6-$IPV6_DP_IFNAME.leases"
>fi
>
>logger -t $myname -p daemon.info "Params $IPV6_RADVD_PIDFILE $IPV6_DHCPD_PID $IPV6_DHCPD_LEASES $IPV6_DP_IFNAME"
>
>#env > /tmp/mm.$reason.$$
>
>#
># fn
>#
>
>create_radvd_profile() {
>
>  #local_ip6_addr="${new_ip6_prefix%/*}1"
>  local_ip6_addr=`ip addr show $IPV6_DP_IFNAME scope link | awk '/inet6/ {print substr($2,1,length($2)-3)}'`
>  local_ip6_prefix="${new_ip6_prefix%/*}/64"
>
>  cat <<EOF > /etc/radvd-$IPV6_DP_IFNAME.conf
># AUTOMAGICALLY CREATED
>
>interface $IPV6_DP_IFNAME {
>        AdvSendAdvert on;
>        MinRtrAdvInterval 3;
>        MaxRtrAdvInterval 10;
>        AdvLinkMTU 1460;
>	AdvOtherConfigFlag on;
>
>        prefix $local_ip6_prefix {
>                AdvOnLink on;
>                AdvAutonomous on;
>                AdvPreferredLifetime $new_preferred_life;
>                AdvValidLifetime $new_max_life;
>                DeprecatePrefix on;
>                DecrementLifetimes on;
>        };
>
>        #RDNSS $new_dhcp6_name_servers {
>        RDNSS $local_ip6_addr {
>
>        };
>};
>
>EOF
>
>  #sysctl -w net.ipv6.conf.$IPV6_DP_IFNAME.forwarding=1
>}
>
>create_dhcpd6_profile() {
>  #local_ip6_addr="${new_ip6_prefix%/*}1"
>  local_ip6_addr=`ip addr show $IPV6_DP_IFNAME scope link | awk '/inet6/ {print substr($2,1,length($2)-3)}'`
>  local_ip6_prefix="${new_ip6_prefix%/*}/64"
>
>  cat <<EOF > /etc/dhcp/dhcpd6-$IPV6_DP_IFNAME.conf
># AUTOMAGICALLY CREATED
>
># option dhcp6.name-servers $new_dhcp6_name_servers ;
>option dhcp6.name-servers $local_ip6_addr ;
>option dhcp6.sntp-servers $local_ip6_addr ;
>
>subnet6 $local_ip6_prefix {
>}
>
>EOF
>
>  cat /dev/null > $IPV6_DHCPD_LEASES
>  chown dhcpd:dhcpd $IPV6_DHCPD_LEASES
>}
>
>setup_dp_interface() {
>  local_ip6_addr="${new_ip6_prefix%/*}1/64"
>
>  ip addr add $local_ip6_addr dev $IPV6_DP_IFNAME
>}
>
>remove_dp_interface() {
>  local_ip6_addr="${old_ip6_prefix%/*}1/64"
>
>  ip addr del $local_ip6_addr dev $IPV6_DP_IFNAME
>}
>
>logger -t $myname -p daemon.info "$reason detected"
>
>case $reason in
>  BOUND6)
>    setup_dp_interface
>    create_radvd_profile
>    create_dhcpd6_profile
>
>    dhcpd -6 -cf /etc/dhcp/dhcpd6-$IPV6_DP_IFNAME.conf -user dhcpd -group dhcpd -pf $IPV6_DHCPD_PID -lf $IPV6_DHCPD_LEASES
>    RET=$?
>    if [ $RET -ne 0 ] ; then
>      logger -t $myname -p daemon.error "Unable to start dhcpd6"
>    fi
>
>    radvd -u radvd -C /etc/radvd-$IPV6_DP_IFNAME.conf -p $IPV6_RADVD_PIDFILE
>    RET=$?
>    if [ $RET -ne 0 ] ; then
>      logger -t $myname -p daemon.error "Unable to start radvd"
>    fi
>    ;;
>  REBOUND6)
>    ;;
>  RELEASE6)
>    remove_dp_interface
>
>    if [ -f "$IPV6_RADVD_PIDFILE" ] ; then
>      kill `cat $IPV6_RADVD_PIDFILE`
>      rm -f $IPV6_RADVD_PIDFILE
>    fi
>
>    if [ -f "$IPV6_DHCPD_PID" ] ; then
>      kill `cat $IPV6_DHCPD_PID`
>      rm -f $IPV6_DHCPD_PID ${IPV6_DHCPD_LEASES}*
>    fi
>    ;;
>  STOP6)
>    ;;
>  RENEW6)
>    ;;
>  EXPIRE6)
>    ;;
>esac
>

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