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270 lines
7.2 KiB
270 lines
7.2 KiB
#!/bin/sh |
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# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*- |
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# ex: ts=8 sw=4 sts=4 et filetype=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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# without $2 means this is for real netroot case |
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# or it is for manually bring up network ie. for kdump scp vmcore |
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PATH=/usr/sbin:/usr/bin:/sbin:/bin |
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type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh |
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type ip_to_var >/dev/null 2>&1 || . /lib/net-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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# enslave this interface to bond? |
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if [ -e /tmp/bond.info ]; then |
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. /tmp/bond.info |
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for slave in $bondslaves ; do |
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if [ "$netif" = "$slave" ] ; then |
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netif=$bondname |
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fi |
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done |
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fi |
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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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for ethname in $ethnames ; do |
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if [ "$netif" = "$ethname" ]; then |
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if [ "$netif" = "$bondname" ] && [ -n "$DO_BOND_SETUP" ] ; then |
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: # We need to really setup bond (recursive call) |
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else |
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netif="$bridgename" |
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fi |
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fi |
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done |
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fi |
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if [ -e /tmp/vlan.info ]; then |
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. /tmp/vlan.info |
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if [ "$netif" = "$phydevice" ]; then |
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if [ "$netif" = "$bondname" ] && [ -n "$DO_BOND_SETUP" ] ; then |
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: # We need to really setup bond (recursive call) |
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else |
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netif="$vlanname" |
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fi |
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fi |
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fi |
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# disable manual ifup while netroot is set for simplifying our logic |
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# in netroot case we prefer netroot to bringup $netif automaticlly |
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[ -n "$2" -a "$2" = "-m" ] && [ -z "$netroot" ] && manualup="$2" |
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[ -z "$netroot" ] && [ -z "$manualup" ] && exit 0 |
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[ -n "$manualup" ] && >/tmp/net.$netif.manualup |
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# Run dhclient |
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do_dhcp() { |
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# 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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[ $i -gt 10 ] && break |
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sleep 0.1 |
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done |
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} |
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do_ipv6auto() { |
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load_ipv6 |
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echo 0 > /proc/sys/net/ipv6/conf/$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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ip link set $netif up |
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wait_for_if_up $netif |
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[ -n "$hostname" ] && echo "echo $hostname > /proc/sys/kernel/hostname" > /tmp/net.$netif.hostname |
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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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ip link set $netif up |
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wait_for_if_up $netif |
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[ -n "$macaddr" ] && ip link set address $macaddr |
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[ -n "$mtu" ] && ip link set mtu $mtu |
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if strstr $ip '*:*:*'; then |
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# note no ip addr flush for ipv6 |
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ip addr add $ip/$mask dev $netif |
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else |
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ip addr flush dev $netif |
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ip addr add $ip/$mask brd + dev $netif |
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fi |
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[ -n "$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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} |
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# loopback is always handled the same way |
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if [ "$netif" = "lo" ] ; then |
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ip link set lo up |
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ip addr add 127.0.0.1/8 dev lo |
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exit 0 |
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fi |
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# start bond if needed |
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if [ -e /tmp/bond.info ]; then |
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. /tmp/bond.info |
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if [ "$netif" = "$bondname" ] && [ ! -e /tmp/net.$bondname.up ] ; then # We are master bond device |
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modprobe bonding |
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ip link set $netif down |
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# Stolen from ifup-eth |
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# add the bits to setup driver parameters here |
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for arg in $bondoptions ; do |
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key=${arg%%=*}; |
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value=${arg##*=}; |
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# %{value:0:1} is replaced with non-bash specific construct |
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if [ "${key}" = "arp_ip_target" -a "${#value}" != "0" -a "+${value%%+*}" != "+" ]; then |
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OLDIFS=$IFS; |
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IFS=','; |
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for arp_ip in $value; do |
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echo +$arp_ip > /sys/class/net/${netif}/bonding/$key |
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done |
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IFS=$OLDIFS; |
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else |
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echo $value > /sys/class/net/${netif}/bonding/$key |
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fi |
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done |
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ip link set $netif up |
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for slave in $bondslaves ; do |
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ip link set $slave down |
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echo "+$slave" > /sys/class/net/$bondname/bonding/slaves |
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ip link set $slave up |
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wait_for_if_up $slave |
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done |
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# add the bits to setup the needed post enslavement parameters |
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for arg in $BONDING_OPTS ; do |
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key=${arg%%=*}; |
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value=${arg##*=}; |
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if [ "${key}" = "primary" ]; then |
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echo $value > /sys/class/net/${netif}/bonding/$key |
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fi |
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done |
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fi |
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fi |
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# XXX need error handling like dhclient-script |
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if [ -e /tmp/bridge.info ]; then |
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. /tmp/bridge.info |
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# start bridge if necessary |
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if [ "$netif" = "$bridgename" ] && [ ! -e /tmp/net.$bridgename.up ]; then |
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brctl addbr $bridgename |
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brctl setfd $bridgename 0 |
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for ethname in $ethnames ; do |
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if [ "$ethname" = "$bondname" ] ; then |
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DO_BOND_SETUP=yes ifup $bondname -m |
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else |
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ip link set $ethname up |
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fi |
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wait_for_if_up $ethname |
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brctl addif $bridgename $ethname |
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done |
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fi |
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fi |
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get_vid() { |
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case "$1" in |
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vlan*) |
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return ${1#vlan} |
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;; |
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*.*) |
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return ${1##*.} |
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;; |
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esac |
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} |
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if [ "$netif" = "$vlanname" ] && [ ! -e /tmp/net.$vlanname.up ]; then |
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modprobe 8021q |
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if [ "$phydevice" = "$bondname" ] ; then |
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DO_BOND_SETUP=yes ifup $phydevice -m |
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else |
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ip link set "$phydevice" up |
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fi |
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wait_for_if_up "$phydevice" |
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ip link add dev "$vlanname" link "$phydevice" type vlan id "$(get_vid $vlanname; echo $?)" |
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fi |
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# setup nameserver |
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namesrv=$(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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# 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 $p |
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# skip ibft |
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[ "$autoconf" = "ibft" ] && continue |
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# If this option isn't directed at our interface, skip it |
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[ -n "$dev" ] && [ "$dev" != "$netif" ] && continue |
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# Store config for later use |
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for i in ip srv gw mask hostname macaddr; do |
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eval '[ "$'$i'" ] && echo '$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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case $autoconf in |
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dhcp|on|any|dhcp6) |
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;; |
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*) |
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if [ $? -eq 0 ]; then |
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setup_net $netif |
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source_hook initqueue/online $netif |
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if [ -z "$manualup" ]; then |
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/sbin/netroot $netif |
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fi |
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fi |
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;; |
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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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