419 lines
12 KiB
Bash
Executable File
419 lines
12 KiB
Bash
Executable File
#!/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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# 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=$1
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use_bridge='false'
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use_vlan='false'
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# enslave this interface to bond?
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for i in /tmp/bond.*.info; do
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[ -e "$i" ] || continue
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unset bondslaves
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unset bondname
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. "$i"
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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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break 2
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fi
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done
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done
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if [ -e /tmp/team.info ]; then
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. /tmp/team.info
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for slave in $teamslaves ; do
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if [ "$netif" = "$slave" ] ; then
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netif=$teammaster
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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 "$DO_BOND_SETUP" ] ; then
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: # We need to really setup bond (recursive call)
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elif [ "$netif" = "$teammaster" ] && [ -n "$DO_TEAM_SETUP" ] ; then
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: # We need to really setup team (recursive call)
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else
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netif="$vlanname"
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use_vlan='true'
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fi
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fi
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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 $bridgeslaves ; do
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if [ "$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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elif [ "$netif" = "$teammaster" ] && [ -n "$DO_TEAM_SETUP" ] ; then
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: # We need to really setup team (recursive call)
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elif [ "$netif" = "$vlanname" ] && [ -n "$DO_VLAN_SETUP" ]; then
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: # We need to really setup vlan (recursive call)
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else
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netif="$bridgename"
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use_bridge='true'
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fi
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fi
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done
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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="$2"
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if [ -n "$manualup" ]; then
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>/tmp/net.$netif.manualup
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rm -f /tmp/net.${netif}.did-setup
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else
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[ -e /tmp/net.${netif}.did-setup ] && exit 0
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[ -e /sys/class/net/$netif/address ] && \
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[ -e /tmp/net.$(cat /sys/class/net/$netif/address).did-setup ] && exit 0
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fi
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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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local _COUNT=0
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local _timeout=$(getargs rd.net.timeout.dhcp=)
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local _DHCPRETRY=$(getargs rd.net.dhcp.retry=)
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_DHCPRETRY=${_DHCPRETRY:-1}
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[ -e /tmp/dhclient.$netif.pid ] && return 0
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if ! iface_has_link $netif; then
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warn "No carrier detected on interface $netif"
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return 1
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fi
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while [ $_COUNT -lt $_DHCPRETRY ]; do
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info "Starting dhcp for interface $netif"
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dhclient "$@" \
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${_timeout:+-timeout $_timeout} \
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-q \
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-cf /etc/dhclient.conf \
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-pf /tmp/dhclient.$netif.pid \
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-lf /tmp/dhclient.$netif.lease \
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$netif \
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&& return 0
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_COUNT=$(($_COUNT+1))
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[ $_COUNT -lt $_DHCPRETRY ] && sleep 1
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done
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warn "dhcp for interface $netif failed"
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return 1
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}
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load_ipv6() {
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[ -d /proc/sys/net/ipv6 ] && return
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modprobe ipv6
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i=0
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while [ ! -d /proc/sys/net/ipv6 ]; do
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i=$(($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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linkup $netif
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wait_for_ipv6_auto $netif
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[ -n "$hostname" ] && echo "echo $hostname > /proc/sys/kernel/hostname" > /tmp/net.$netif.hostname
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return 0
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}
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# Handle static ip configuration
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do_static() {
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strglobin $ip '*:*:*' && load_ipv6
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if ! linkup $netif; then
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warn "Could bring interface $netif up!"
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return 1
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fi
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ip route get "$ip" | {
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read a rest
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if [ "$a" = "local" ]; then
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warn "Not assigning $ip to interface $netif, cause it is already assigned!"
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return 1
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fi
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return 0
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} || return 1
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[ -n "$macaddr" ] && ip link set address $macaddr dev $netif
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[ -n "$mtu" ] && ip link set mtu $mtu dev $netif
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if strglobin $ip '*:*:*'; then
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# note no ip addr flush for ipv6
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ip addr add $ip/$mask ${srv:+peer $srv} dev $netif
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wait_for_ipv6_dad $netif
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else
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if ! arping -f -q -D -c 2 -I $netif $ip; then
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warn "Duplicate address detected for $ip for interface $netif."
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return 1
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fi
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ip addr flush dev $netif
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ip addr add $ip/$mask ${srv:+peer $srv} brd + dev $netif
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fi
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[ -n "$gw" ] && echo ip route replace 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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return 0
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}
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# loopback is always handled the same way
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if [ "$netif" = "lo" ] ; then
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ip link set lo up
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ip addr add 127.0.0.1/8 dev lo
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exit 0
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fi
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# start bond if needed
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if [ -e /tmp/bond.${netif}.info ]; then
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. /tmp/bond.${netif}.info
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if [ "$netif" = "$bondname" ] && [ ! -e /tmp/net.$bondname.up ] ; then # We are master bond device
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modprobe bonding
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echo "+$netif" > /sys/class/net/bonding_masters
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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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linkup $netif
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for slave in $bondslaves ; do
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ip link set $slave down
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cat /sys/class/net/$slave/address > /tmp/net.${netif}.${slave}.hwaddr
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echo "+$slave" > /sys/class/net/$bondname/bonding/slaves
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linkup $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/$key
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fi
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done
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fi
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fi
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if [ -e /tmp/team.info ]; then
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. /tmp/team.info
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if [ "$netif" = "$teammaster" ] && [ ! -e /tmp/net.$teammaster.up ] ; then
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# We shall only bring up those _can_ come up
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# in case of some slave is gone in active-backup mode
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working_slaves=""
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for slave in $teamslaves ; do
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ip link set $slave up 2>/dev/null
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if wait_for_if_up $slave; then
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working_slaves+="$slave "
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fi
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done
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# Do not add slaves now
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teamd -d -U -n -N -t $teammaster -f /etc/teamd/$teammaster.conf
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for slave in $working_slaves; do
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# team requires the slaves to be down before joining team
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ip link set $slave down
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teamdctl $teammaster port add $slave
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done
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ip link set $teammaster up
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fi
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fi
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# XXX need error handling like dhclient-script
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if [ -e /tmp/bridge.info ]; then
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. /tmp/bridge.info
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# start bridge if necessary
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if [ "$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 $bridgeslaves ; do
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if [ "$ethname" = "$bondname" ] ; then
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DO_BOND_SETUP=yes ifup $bondname -m
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elif [ "$ethname" = "$teammaster" ] ; then
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DO_TEAM_SETUP=yes ifup $teammaster -m
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elif [ "$ethname" = "$vlanname" ]; then
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DO_VLAN_SETUP=yes ifup $vlanname -m
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else
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linkup $ethname
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fi
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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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echo ${1#vlan}
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;;
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*.*)
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echo ${1##*.}
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;;
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esac
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}
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if [ "$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 $phydevice -m
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elif [ "$phydevice" = "$teammaster" ] ; then
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DO_TEAM_SETUP=yes ifup $phydevice -m
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else
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linkup "$phydevice"
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fi
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ip link add dev "$vlanname" link "$phydevice" type vlan id "$(get_vid $vlanname)"
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ip link set "$vlanname" up
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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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namesrv=$(getargs nameserver)
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for s in $namesrv; do
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echo nameserver $s >> /tmp/net.$netif.resolv.conf
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done
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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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case "$dev" in
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??:??:??:??:??:??) # MAC address
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_dev=$(iface_for_mac $dev)
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[ -n "$_dev" ] && dev="$_dev"
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;;
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??-??-??-??-??-??) # MAC address in BOOTIF form
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_dev=$(iface_for_mac $(fix_bootif $dev))
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[ -n "$_dev" ] && dev="$_dev"
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;;
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esac
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# If this option isn't directed at our interface, skip it
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[ -n "$dev" ] && [ "$dev" != "$netif" ] && \
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[ "$use_bridge" != 'true' ] && \
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[ "$use_vlan" != 'true' ] && continue
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# setup nameserver
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namesrv="$dns1 $dns2 $(getargs nameserver)"
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for s in $namesrv; do
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echo nameserver $s >> /tmp/net.$netif.resolv.conf
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done
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# Store config for later use
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for i in ip srv gw mask hostname macaddr dns1 dns2; do
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eval '[ "$'$i'" ] && echo '$i'="$'$i'"'
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done > /tmp/net.$netif.override
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for autoopt in $(str_replace "$autoconf" "," " "); do
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case $autoopt in
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dhcp|on|any)
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do_dhcp -4 ;;
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dhcp6)
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load_ipv6
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do_dhcp -6 ;;
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auto6)
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do_ipv6auto ;;
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*)
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do_static ;;
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esac
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done
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ret=$?
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> /tmp/net.${netif}.up
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if [ -e /sys/class/net/${netif}/address ]; then
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> /tmp/net.$(cat /sys/class/net/${netif}/address).up
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fi
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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 [ $ret -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 $netif
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fi
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fi
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;;
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esac
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exit 0
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done
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# netif isn't the top stack? Then we should exit here.
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# eg. netif is bond0. br0 is on top of it. dhcp br0 is correct but dhcp
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# bond0 doesn't make sense.
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if [ -n "$DO_BOND_SETUP" -o -n "$DO_TEAM_SETUP" -o -n "$DO_VLAN_SETUP" ]; then
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exit 0
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fi
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# no ip option directed at our interface?
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if [ ! -e /tmp/net.${netif}.up ]; then
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if getargs 'ip=dhcp6'; then
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load_ipv6
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do_dhcp -6
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elif getargs 'ip=dhcp'; then
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do_dhcp -4
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fi
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fi
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exit 0
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