-#!/bin/sh
+#!/bin/sh -e
# very simple dhclient-script. All it cares about is bringing the interface
# up, and it does not even try to do anything else.
-case $reason in
- PREINIT) /sbin/ip link set "$interface" up ;;
- BOUND) ipopts="$new_ip_address"
- [ "$new_interface_mtu" ] && ip link set $interface mtu $new_interface_mtu
- [ "$new_subnet_mask" ] && ipopts="$ipopts/$new_subnet_mask"
- [ "$new_broadcast_address" ] && ipopts="$ipopts broadcast $new_broadcast_address"
- /sbin/ip addr add $ipopts dev $interface
- [ "$new_routers" ] && /sbin/ip route add default via ${new_routers%%,*} dev $interface
- [ "$new_domain_name" ] && echo "domain $new_domain_name" > /etc/resolv.conf
- if [ "$new_domain_search" ]; then
- echo "search $new_domain_search" |sed 's/,//g' >> /etc/resolv.conf
- elif [ "$new_domain_name" ]; then
- echo "search $new_domain_name" >> /etc/resolv.conf
- fi
- for s in $new_domain_name_servers; do
- echo "nameserver $s" >> /etc/resolv.conf
+LOG=/dhclient.$$.log
+ERR=/network.$$.err
+PATH=$PATH:/sbin:/usr/sbin
+
+. /lib/dracut-lib
+
+getarg netdebug && {
+ exec >/dhclient.$interface.$$.out
+ exec 2>>/dhclient.$interface.$$.out
+ set -x
+}
+
+log_err() {
+ # avoid the need for cat on the image
+ echo "On $netif, the following command:" > $ERR
+ echo " " "$CMD" >> $ERR
+ echo "had errors:" >> $ERR
+ while read line; do echo " $line"; done < $LOG >> $ERR
+}
+
+# Catch unlikely initial errors
+trap 'echo Errors preparing to configure $netif > $ERR; exit 0' EXIT
+
+netif=$interface
+ip=$new_ip_address
+mtu=$new_interface_mtu
+mask=$new_subnet_mask
+bcast=$new_broadcast_address
+gw=${new_routers%%,*}
+domain=$new_domain_name
+search=$new_domain_search
+namesrv=$new_domain_name_servers
+hostname=$new_host_name
+
+[ -f /net.$interface.override ] && . /net.$interface.override
+
+# save the offending command and let udev move on if we have an error
+trap 'log_err; exit 0' EXIT
+
+run() {
+ CMD="$@"
+ "$@" >> $LOG 2>&1
+}
+
+setup_interface() {
+ [ -n "$mtu" ] && {
+ run ip link set $netif down
+ run ip link set $netif mtu $mtu
+ run ip link set $netif up
+ }
+
+ run ip addr add $ip${mask:+/$mask} ${bcast:+broadcast $bcast} dev $netif
+ [ -n "$gw" ] && run ip route add default via $gw
+ [ -n "${search}${domain}" -a -n "$namesrv" ] && {
+ echo search $search $domain > /etc/resolv.conf
+ for s in $namesrv; do
+ echo nameserver $s >> /etc/resolv.conf
done
- set |grep -E '^new_[a-z_]+=' |while read line; do
- echo "${line%%=*}='${line#*=}'">>/net.$interface.dhcpopts
+ }
+ [ -e /hostname.set ] || {
+ [ -n "$hostname" ] && mknod /hostname.set p && run hostname $hostname
+ }
+}
+
+case $reason in
+ PREINIT)
+ run /sbin/ip link set $netif up
+ ;;
+ BOUND)
+ setup_interface
+ set | while read line; do
+ [ "${line#new_}" = "$line" ] && continue
+ echo "$line" >>/net.$netif.dhcpopts
done
- >/net.$interface.up ;;
+ >/net.$netif.up
+ echo online > /sys/class/net/$netif/uevent ;;
*) ;;
esac
+
+trap - EXIT
+exit 0
#!/bin/sh
+PATH=$PATH:/sbin:/usr/sbin
+
+. /lib/dracut-lib
+
+getarg netdebug && {
+ exec >/ifup.$1.$$.out
+ exec 2>>/ifup.$1.$$.out
+ set -x
+}
+
+netif=$1
+
# bail immediatly if the interface is already up
-[ -f "/net.$1.up" ] && exit 0
+[ -f "/net.$netif.up" ] && exit 0
# loopback is always handled the same way
-[ "$1" = "lo" ] && {
- /sbin/ip link set lo up
- /sbin/ip addr add 127.0.0.1/8 dev lo
+[ "$netif" = "lo" ] && {
+ ip link set lo up
+ ip addr add 127.0.0.1/8 dev lo
+ >/net.$netif.up
exit 0
}
+# XXX need error handling like dhclient-script
+
+die() {
+ echo $netif: "$@" 1>&2
+ exit 1
+}
+
+do_static() {
+ [ -n "$ip" ] || die "static: need IP address"
+ [ -n "$mask" ] || {
+ net=${ip%%.*}
+ mask=255.0.0.0
+ [ $net -ge 128 ] && mask=255.255.0.0
+ [ $net -ge 192 ] && mask=255.255.255.0
+ }
+ ip addr add $ip/$mask dev $netif || die "static: setting IP $ip/$mask"
+ [ -n "$gw" ] && {
+ ip route add default via $gw dev $netif ||
+ die "static: setting default route via $gw"
+ }
+ ip link set $netif up
+ [ -e /hostname.set ] || {
+ [ -n "$hostname" ] && mknod /hostname.set p 2>/dev/null &&
+ hostname $hostname
+ }
+ [ -n "$srv" ] &&
+ echo "new_dhcp_server_identifier=$srv" > /net.$netif.dhcpopts
+
+ >/net.$netif.up
+ echo online > /sys/class/net/$netif/uevent
+}
+
+do_dhcp() {
+ reqs=subnet-mask,broadcast-address,routers,domain-name
+ reqs=${reqs},domain-name-servers,domain-search
+ reqs=${reqs},host-name,root-path,interface-mtu
+
+ for i in ip srv gw mask hostname; do
+ eval '[ "$'$i'" ] && echo '$i'="$'$i'"'
+ done > /net.$netif.override
+ [ -n "$ip" ] && echo bcast= >> /net.$netif.override
+
+ # /sbin/dhclient-script will mark the netif up and generate the online
+ # event for nfsroot
+ # XXX add -V vendor class and option parsing per kernel
+ dhclient -1 -q -R ${reqs} -pf /dhclient.$netif.pid $netif
+}
+
+ip_to_var() {
+ local v=${1}:
+ set --
+ while [ -n "$v" ]; do
+ set -- "$@" "${v%%:*}"
+ v=${v#*:}
+ done
+
+ unset ip srv gw mask hostname dev autoconf
+ case $# in
+ 0) autoconf=off ;;
+ 1) autoconf=$1 ;;
+ 2) dev=$1; autoconf=$2 ;;
+ *) ip=$1; srv=$2; gw=$3; mask=$4; hostname=$5; dev=$6; autoconf=$7
+ case $autoconf in
+ ''|none|off) [ -n "$ip" ] && autoconf=static ;;
+ esac
+ esac
+ [ -n "$dev" ] || dev=$netif
+ [ -n "$autoconf" ] || autoconf=off
+}
+
# spin through the kernel command line, looking for ip= lines
for p in $(cat /proc/cmdline); do
- [ "${p%%=*}" = "ip" ] || continue
- ip=${p#ip=}
- case $ip in
- none|off) exit 0;; # we were told to not configure anything
- dhcp|on|any) >/net.$1.dhcp; exit 0;;
- bootp|rarp|both) exit 0;; #dunno how to do this
- *) echo ${ip} | \
- (IFS=':' read client server gw netmask hostname device autoconf
- if [ -z "$device" -o "$device" = "$1" ]; then
- case $autoconf in
- dhcp|on|any) >/net.$1.dhcp ;;
- none|off|'') # do some basic configuration
- /sbin/ip link set $1 up
- /sbin/ip addr add $client/$netmask dev $1
- [ "$gw" ] && /sbin/ip route add default via $gw dev $1
- >/net.$1.up ;;
- esac
- fi
- ) ;;
- *) continue;;
+ [ -n "${p%ip=*}" ] && continue
+ ip_to_var ${p#ip=}
+
+ # If this option isn't directed at our interface, skip it
+ [ "$dev" = "$netif" ] || continue
+
+ case $autoconf in
+ static) do_static ;;
+ dhcp|on|any) do_dhcp ;;
+ bootp|rarp|both) die "autoconfig type $autoconf is not supported" ;;
+ ''|none|off) ;;
esac
+ break
done
+exit 0
#!/bin/bash
-dracut_install ip dhclient grep
+dracut_install ip dhclient hostname
instmods ${modules:-=net}
inst "$moddir/ifup" "/sbin/ifup"
inst "$moddir/dhclient-script" "/sbin/dhclient-script"
instmods =networking ecb arc4
inst_rules "$moddir/60-net.rules"
inst_hook pre-pivot 10 "$moddir/kill-dhclient.sh"
-inst_hook pre-mount 70 "$moddir/run-dhclient.sh"
mkdir -p "${initdir}/var/run"
#!/bin/sh
-pid=$(pidof dhclient)
-[ -n "$pid" ] && kill $pid
+for f in /dhclient.*.pid; do
+ [ "$f" != "/dhclient.*.pid" ] && kill $(cat $f)
+done
+++ /dev/null
-#!/bin/sh
-for i in /net.*.dhcp; do
- [ "$i" = '/net.*.dhcp' ] && break
- dev=${i#/net.}; dev=${dev%.dhcp}
- [ -f "/net.$dev.up" ] && continue
- dhclient -R 'subnet-mask,broadcast-address,time-offset,routers,domain-name,domain-name-servers,host-name,nis-domain,nis-servers,ntp-servers,root-path' -1 -q $dev &
-done
-wait
-
projects / platform / upstream / dracut.git / commitdiff