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165 lines
3.9 KiB
165 lines
3.9 KiB
#!/bin/sh |
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# |
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# We don't need to check for ip= errors here, that is handled by the |
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# cmdline parser script |
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# |
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PATH=$PATH:/sbin:/usr/sbin |
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. /lib/dracut-lib.sh |
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# Run dhclient |
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do_dhcp() { |
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# /sbin/dhclient-script will mark the netif up and generate the online |
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# event for nfsroot |
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# XXX add -V vendor class and option parsing per kernel |
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echo "Starting dhcp for interface $netif" |
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dhclient "$@" -1 -q -cf /etc/dhclient.conf -pf /tmp/dhclient.$netif.pid -lf /tmp/dhclient.$netif.lease $netif \ |
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|| echo "dhcp failed" |
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} |
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load_ipv6() { |
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modprobe ipv6 |
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i=0 |
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while [ ! -d /proc/sys/net/ipv6 ]; do |
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i=$(($i+1)) |
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[ $i -gt 10 ] && break |
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sleep 0.1 |
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done |
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} |
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do_ipv6auto() { |
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load_ipv6 |
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{ |
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echo 0 > /proc/sys/net/ipv6/conf/$netif/forwarding |
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echo 1 > /proc/sys/net/ipv6/conf/$netif/accept_ra |
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echo 1 > /proc/sys/net/ipv6/conf/$netif/accept_redirects |
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echo ip link set $netif up |
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echo wait_for_if_up $netif |
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} > /tmp/net.$netif.up |
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[ -n "$hostname" ] && echo "echo $hostname > /proc/sys/kernel/hostname" > /tmp/net.$netif.hostname |
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namesrv=$(getargs nameserver) |
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if [ -n "$namesrv" ] ; then |
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for s in $namesrv; do |
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echo nameserver $s |
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done |
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fi >> /tmp/net.$netif.resolv.conf |
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echo online > /sys/class/net/$netif/uevent |
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/sbin/initqueue --onetime --name netroot-$netif /sbin/netroot $netif |
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} |
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# Handle static ip configuration |
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do_static() { |
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strstr $ip '*:*:*' && load_ipv6 |
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{ |
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echo ip link set $netif up |
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echo wait_for_if_up $netif |
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# do not flush addr for ipv6 |
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strstr $ip '*:*:*' || \ |
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echo ip addr flush dev $netif |
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echo ip addr add $ip/$mask dev $netif |
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} > /tmp/net.$netif.up |
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[ -n "$gw" ] && echo ip route add default via $gw dev $netif > /tmp/net.$netif.gw |
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[ -n "$hostname" ] && echo "echo $hostname > /proc/sys/kernel/hostname" > /tmp/net.$netif.hostname |
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namesrv=$(getargs nameserver) |
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if [ -n "$namesrv" ] ; then |
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for s in $namesrv; do |
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echo nameserver $s |
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done |
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fi >> /tmp/net.$netif.resolv.conf |
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echo online > /sys/class/net/$netif/uevent |
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/sbin/initqueue --onetime --name netroot-$netif /sbin/netroot $netif |
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} |
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PATH=$PATH:/sbin:/usr/sbin |
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export PS4="ifup.$1.$$ + " |
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exec >>/dev/initlog.pipe 2>>/dev/initlog.pipe |
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. /lib/dracut-lib.sh |
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# Huh? No $1? |
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[ -z "$1" ] && exit 1 |
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# $netif reads easier than $1 |
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netif=$1 |
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# bridge this interface? |
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if [ -e /tmp/bridge.info ]; then |
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. /tmp/bridge.info |
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if [ "$netif" = "$ethname" ]; then |
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netif="$bridgename" |
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fi |
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fi |
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# bail immediately if the interface is already up |
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# or we don't need the network |
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[ -f "/tmp/net.$netif.up" ] && exit 0 |
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[ -f "/tmp/root.info" ] || exit 0 |
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. /tmp/root.info |
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[ -z "$netroot" ] && exit 0 |
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# loopback is always handled the same way |
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if [ "$netif" = "lo" ] ; then |
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ip link set lo up |
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ip addr add 127.0.0.1/8 dev lo |
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>/tmp/net.$netif.up |
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exit 0 |
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fi |
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# XXX need error handling like dhclient-script |
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# start bridge if necessary |
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if [ "$netif" = "$bridgename" ] && [ ! -e /tmp/net.$bridgename.up ]; then |
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ip link set $ethname up |
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wait_for_if_up $ethname |
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# Create bridge and add eth to bridge |
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brctl addbr $bridgename |
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brctl setfd $bridgename 0 |
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brctl addif $bridgename $ethname |
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fi |
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# No ip lines default to dhcp |
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ip=$(getarg ip) |
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if [ -z "$ip" ]; then |
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if [ "$netroot" = "dhcp6" ]; then |
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do_dhcp -6 |
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else |
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do_dhcp -4 |
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fi |
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fi |
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# Specific configuration, spin through the kernel command line |
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# looking for ip= lines |
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for p in $(getargs ip=); do |
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ip_to_var $p |
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# If this option isn't directed at our interface, skip it |
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[ -n "$dev" ] && [ "$dev" != "$netif" ] && continue |
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# Store config for later use |
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for i in ip srv gw mask hostname; do |
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eval '[ "$'$i'" ] && echo '$i'="$'$i'"' |
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done > /tmp/net.$netif.override |
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case $autoconf in |
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dhcp|on|any) |
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do_dhcp -4 ;; |
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dhcp6) |
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do_dhcp -6 ;; |
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auto6) |
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do_ipv6auto ;; |
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*) |
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do_static ;; |
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esac |
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break |
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done |
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exit 0
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