diff options
Diffstat (limited to 'modules.d/35network-legacy/ifup.sh')
| -rwxr-xr-x | modules.d/35network-legacy/ifup.sh | 563 |
1 files changed, 563 insertions, 0 deletions
diff --git a/modules.d/35network-legacy/ifup.sh b/modules.d/35network-legacy/ifup.sh new file mode 100755 index 0000000..3b54b6c --- /dev/null +++ b/modules.d/35network-legacy/ifup.sh @@ -0,0 +1,563 @@ +#!/bin/sh +# +# We don't need to check for ip= errors here, that is handled by the +# cmdline parser script +# +# without $2 means this is for real netroot case +# or it is for manually bring up network ie. for kdump scp vmcore +PATH=/usr/sbin:/usr/bin:/sbin:/bin + +type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh +type ip_to_var > /dev/null 2>&1 || . /lib/net-lib.sh + +# Huh? No $1? +[ -z "$1" ] && exit 1 + +# $netif reads easier than $1 +netif=$1 + +# loopback is always handled the same way +if [ "$netif" = "lo" ]; then + ip link set lo up + ip addr add 127.0.0.1/8 dev lo + exit 0 +fi + +do_dhcp_parallel() { + # dhclient-script will mark the netif up and generate the online + # event for nfsroot + # XXX add -V vendor class and option parsing per kernel + + [ -e "/tmp/dhclient.$netif.pid" ] && return 0 + + if ! iface_has_carrier "$netif"; then + warn "No carrier detected on interface $netif" + return 1 + fi + + bootintf=$(readlink "$IFNETFILE") + if [ -n "$bootintf" ] && [ -e "/tmp/dhclient.${bootintf}.lease" ]; then + info "DHCP already succeeded for $bootintf, exiting for $netif" + return 1 + fi + + if [ ! -e /run/NetworkManager/conf.d/10-dracut-dhclient.conf ]; then + mkdir -p /run/NetworkManager/conf.d + echo '[main]' > /run/NetworkManager/conf.d/10-dracut-dhclient.conf + echo 'dhcp=dhclient' >> /run/NetworkManager/conf.d/10-dracut-dhclient.conf + fi + + chmod +x /sbin/dhcp-multi.sh + /sbin/dhcp-multi.sh "$netif" "$DO_VLAN" "$@" & + return 0 +} + +# Run dhclient +do_dhcp() { + # dhclient-script will mark the netif up and generate the online + # event for nfsroot + # XXX add -V vendor class and option parsing per kernel + + local _COUNT + local _timeout + local _DHCPRETRY + + _COUNT=0 + _timeout=$(getarg rd.net.timeout.dhcp=) + _DHCPRETRY=$(getargnum 1 1 1000000000 rd.net.dhcp.retry=) + + [ -e "/tmp/dhclient.${netif}.pid" ] && return 0 + + if ! iface_has_carrier "$netif"; then + warn "No carrier detected on interface $netif" + return 1 + fi + + if [ -n "$_timeout" ]; then + if ! (dhclient --help 2>&1 | grep -q -F -- '--timeout' 2> /dev/null); then + warn "rd.net.timeout.dhcp has no effect because dhclient does not implement the --timeout option" + unset _timeout + fi + fi + + if [ ! -e /run/NetworkManager/conf.d/10-dracut-dhclient.conf ]; then + mkdir -p /run/NetworkManager/conf.d + echo '[main]' > /run/NetworkManager/conf.d/10-dracut-dhclient.conf + echo 'dhcp=dhclient' >> /run/NetworkManager/conf.d/10-dracut-dhclient.conf + fi + + while [ "$_COUNT" -lt "$_DHCPRETRY" ]; do + info "Starting dhcp for interface $netif" + dhclient "$@" \ + ${_timeout:+--timeout "$_timeout"} \ + -q \ + -1 \ + -cf /etc/dhclient.conf \ + -pf "/tmp/dhclient.${netif}.pid" \ + -lf "/tmp/dhclient.${netif}.lease" \ + "$netif" \ + && return 0 + _COUNT=$((_COUNT + 1)) + [ "$_COUNT" -lt "$_DHCPRETRY" ] && sleep 1 + done + warn "dhcp for interface $netif failed" + # nuke those files since we failed; we might retry dhcp again if it's e.g. + # `ip=dhcp,dhcp6` and we check for the PID file at the top + rm -f /tmp/dhclient."$netif".pid /tmp/dhclient."$netif".lease + return 1 +} + +load_ipv6() { + [ -d /proc/sys/net/ipv6 ] && return + modprobe ipv6 + i=0 + while [ ! -d /proc/sys/net/ipv6 ]; do + i=$((i + 1)) + [ $i -gt 10 ] && break + sleep 0.1 + done +} + +do_ipv6auto() { + local ret + load_ipv6 + echo 0 > /proc/sys/net/ipv6/conf/"${netif}"/forwarding + echo 1 > /proc/sys/net/ipv6/conf/"${netif}"/accept_ra + echo 1 > /proc/sys/net/ipv6/conf/"${netif}"/accept_redirects + linkup "$netif" + wait_for_ipv6_auto "$netif" + ret=$? + + [ -n "$hostname" ] && echo "echo $hostname > /proc/sys/kernel/hostname" > "/tmp/net.${netif}.hostname" + + return "$ret" +} + +do_ipv6link() { + local ret + load_ipv6 + echo 0 > /proc/sys/net/ipv6/conf/"${netif}"/forwarding + echo 0 > /proc/sys/net/ipv6/conf/"${netif}"/accept_ra + echo 0 > /proc/sys/net/ipv6/conf/"${netif}"/accept_redirects + linkup "$netif" + + [ -n "$hostname" ] && echo "echo $hostname > /proc/sys/kernel/hostname" > "/tmp/net.${netif}.hostname" + + return "$ret" +} + +# Handle static ip configuration +do_static() { + strglobin "$ip" '*:*:*' && load_ipv6 + + if ! iface_has_carrier "$netif"; then + warn "No carrier detected on interface $netif" + return 1 + elif ! linkup "$netif"; then + warn "Could not bring interface $netif up!" + return 1 + fi + + ip route get "$ip" 2> /dev/null | { + read -r a rest + if [ "$a" = "local" ]; then + warn "Not assigning $ip to interface $netif, cause it is already assigned!" + return 1 + fi + return 0 + } || return 1 + + [ -n "$macaddr" ] && ip link set address "$macaddr" dev "$netif" + [ -n "$mtu" ] && ip link set mtu "$mtu" dev "$netif" + if strglobin "$ip" '*:*:*'; then + # note no ip addr flush for ipv6 + ip addr add "$ip/$mask" ${srv:+peer "$srv"} dev "$netif" + echo 0 > /proc/sys/net/ipv6/conf/"${netif}"/forwarding + echo 1 > /proc/sys/net/ipv6/conf/"${netif}"/accept_ra + echo 1 > /proc/sys/net/ipv6/conf/"${netif}"/accept_redirects + wait_for_ipv6_dad "$netif" + else + if [ -z "$srv" ]; then + if command -v arping2 > /dev/null; then + if arping2 -q -C 1 -c 2 -I "$netif" -0 "$ip"; then + warn "Duplicate address detected for $ip for interface $netif." + return 1 + fi + else + if ! arping -f -q -D -c 2 -I "$netif" "$ip"; then + warn "Duplicate address detected for $ip for interface $netif." + return 1 + fi + fi + fi + ip addr flush dev "$netif" + ip addr add "$ip/$mask" ${srv:+peer "$srv"} brd + dev "$netif" + fi + + [ -n "$gw" ] && echo "ip route replace default via '$gw' dev '$netif'" > "/tmp/net.$netif.gw" + [ -n "$hostname" ] && echo "echo '$hostname' > /proc/sys/kernel/hostname" > "/tmp/net.$netif.hostname" + + return 0 +} + +get_vid() { + case "$1" in + vlan*) + echo "${1#vlan}" + ;; + *.*) + echo "${1##*.}" + ;; + esac +} + +# check, if we need VLAN's for this interface +if [ -z "$DO_VLAN_PHY" ] && [ -e "/tmp/vlan.${netif}.phy" ]; then + unset DO_VLAN + NO_AUTO_DHCP=yes DO_VLAN_PHY=yes ifup "$netif" + modprobe -b -q 8021q + + for i in /tmp/vlan.*."${netif}"; do + [ -e "$i" ] || continue + unset vlanname + unset phydevice + # shellcheck disable=SC1090 + . "$i" + if [ -n "$vlanname" ]; then + linkup "$phydevice" + ip link add dev "$vlanname" link "$phydevice" type vlan id "$(get_vid "$vlanname")" + ifup "$vlanname" + fi + done + exit 0 +fi + +# Check, if interface is VLAN interface +if ! [ -e "/tmp/vlan.${netif}.phy" ]; then + for i in "/tmp/vlan.${netif}".*; do + [ -e "$i" ] || continue + export DO_VLAN=yes + break + done +fi + +# bridge this interface? +if [ -z "$NO_BRIDGE_MASTER" ]; then + for i in /tmp/bridge.*.info; do + [ -e "$i" ] || continue + unset bridgeslaves + unset bridgename + # shellcheck disable=SC1090 + . "$i" + for ethname in $bridgeslaves; do + [ "$netif" != "$ethname" ] && continue + + NO_BRIDGE_MASTER=yes NO_AUTO_DHCP=yes ifup "$ethname" + linkup "$ethname" + if [ ! -e "/tmp/bridge.$bridgename.up" ]; then + ip link add name "$bridgename" type bridge + echo 0 > "/sys/devices/virtual/net/$bridgename/bridge/forward_delay" + : > "/tmp/bridge.$bridgename.up" + fi + ip link set dev "$ethname" master "$bridgename" + ifup "$bridgename" + exit 0 + done + done +fi + +# enslave this interface to bond? +if [ -z "$NO_BOND_MASTER" ]; then + for i in /tmp/bond.*.info; do + [ -e "$i" ] || continue + unset bondslaves + unset bondname + # shellcheck disable=SC1090 + . "$i" + for testslave in $bondslaves; do + [ "$netif" != "$testslave" ] && continue + + # already setup + [ -e "/tmp/bond.$bondname.up" ] && exit 0 + + # wait for all slaves to show up + for slave in $bondslaves; do + # try to create the slave (maybe vlan or bridge) + NO_BOND_MASTER=yes NO_AUTO_DHCP=yes ifup "$slave" + + if ! ip link show dev "$slave" > /dev/null 2>&1; then + # wait for the last slave to show up + exit 0 + fi + done + + modprobe -q -b bonding + echo "+$bondname" > /sys/class/net/bonding_masters 2> /dev/null + ip link set "$bondname" down + + # Stolen from ifup-eth + # add the bits to setup driver parameters here + for arg in $bondoptions; do + key=${arg%%=*} + value=${arg##*=} + # %{value:0:1} is replaced with non-bash specific construct + if [ "${key}" = "arp_ip_target" -a "${#value}" != "0" -a "+${value%%+*}" != "+" ]; then + OLDIFS=$IFS + IFS=',' + for arp_ip in $value; do + echo "+$arp_ip" > "/sys/class/net/${bondname}/bonding/$key" + done + IFS=$OLDIFS + else + echo "$value" > "/sys/class/net/${bondname}/bonding/$key" + fi + done + + linkup "$bondname" + + for slave in $bondslaves; do + cat "/sys/class/net/$slave/address" > "/tmp/net.${bondname}.${slave}.hwaddr" + ip link set "$slave" down + echo "+$slave" > "/sys/class/net/$bondname/bonding/slaves" + linkup "$slave" + done + + # Set mtu on bond master + [ -n "$bondmtu" ] && ip link set mtu "$bondmtu" dev "$bondname" + + # add the bits to setup the needed post enslavement parameters + for arg in $bondoptions; do + key=${arg%%=*} + value=${arg##*=} + if [ "${key}" = "primary" ]; then + echo "$value" > "/sys/class/net/${bondname}/bonding/$key" + fi + done + + : > "/tmp/bond.$bondname.up" + + NO_BOND_MASTER=yes ifup "$bondname" + exit $? + done + done +fi + +if [ -z "$NO_TEAM_MASTER" ]; then + for i in /tmp/team.*.info; do + [ -e "$i" ] || continue + unset teammaster + unset teamslaves + # shellcheck disable=SC1090 + . "$i" + for testslave in $teamslaves; do + [ "$netif" != "$testslave" ] && continue + + [ -e "/tmp/team.$teammaster.up" ] && exit 0 + + # wait for all slaves to show up + for slave in $teamslaves; do + # try to create the slave (maybe vlan or bridge) + NO_TEAM_MASTER=yes NO_AUTO_DHCP=yes ifup "$slave" + + if ! ip link show dev "$slave" > /dev/null 2>&1; then + # wait for the last slave to show up + exit 0 + fi + done + + if [ ! -e "/tmp/team.$teammaster.up" ]; then + # We shall only bring up those _can_ come up + # in case of some slave is gone in active-backup mode + working_slaves="" + for slave in $teamslaves; do + teamdctl "${teammaster}" port present "${slave}" 2> /dev/null \ + && continue + ip link set dev "$slave" up 2> /dev/null + if wait_for_if_up "$slave"; then + working_slaves="$working_slaves$slave " + fi + done + # Do not add slaves now + teamd -d -U -n -N -t "$teammaster" -f "/etc/teamd/${teammaster}.conf" + for slave in $working_slaves; do + # team requires the slaves to be down before joining team + ip link set dev "$slave" down + ( + unset TEAM_PORT_CONFIG + read -r _hwaddr < "/sys/class/net/$slave/address" + _subchannels=$(iface_get_subchannels "$slave") + if [ -n "$_hwaddr" ] && [ -e "/etc/sysconfig/network-scripts/mac-${_hwaddr}.conf" ]; then + # shellcheck disable=SC1090 + . "/etc/sysconfig/network-scripts/mac-${_hwaddr}.conf" + elif [ -n "$_subchannels" ] && [ -e "/etc/sysconfig/network-scripts/ccw-${_subchannels}.conf" ]; then + # shellcheck disable=SC1090 + . "/etc/sysconfig/network-scripts/ccw-${_subchannels}.conf" + elif [ -e "/etc/sysconfig/network-scripts/ifcfg-${slave}" ]; then + # shellcheck disable=SC1090 + . "/etc/sysconfig/network-scripts/ifcfg-${slave}" + fi + + if [ -n "${TEAM_PORT_CONFIG}" ]; then + /usr/bin/teamdctl "${teammaster}" port config update "${slave}" "${TEAM_PORT_CONFIG}" + fi + ) + teamdctl "$teammaster" port add "$slave" + done + + ip link set dev "$teammaster" up + + : > "/tmp/team.$teammaster.up" + NO_TEAM_MASTER=yes ifup "$teammaster" + exit $? + fi + done + done +fi + +# all synthetic interfaces done.. now check if the interface is available +if ! ip link show dev "$netif" > /dev/null 2>&1; then + exit 1 +fi + +# disable manual ifup while netroot is set for simplifying our logic +# in netroot case we prefer netroot to bringup $netif automatically +[ -n "$2" -a "$2" = "-m" ] && [ -z "$netroot" ] && manualup="$2" + +if [ -n "$manualup" ]; then + : > "/tmp/net.$netif.manualup" + rm -f "/tmp/net.${netif}.did-setup" +else + [ -e "/tmp/net.${netif}.did-setup" ] && exit 0 + [ -z "$DO_VLAN" ] \ + && [ -e "/sys/class/net/$netif/address" ] \ + && [ -e "/tmp/net.$(cat "/sys/class/net/$netif/address").did-setup" ] && exit 0 +fi + +# Specific configuration, spin through the kernel command line +# looking for ip= lines +for p in $(getargs ip=); do + ip_to_var "$p" + # skip ibft + [ "$autoconf" = "ibft" ] && continue + + case "$dev" in + ??:??:??:??:??:??) # MAC address + _dev=$(iface_for_mac "$dev") + [ -n "$_dev" ] && dev="$_dev" + ;; + ??-??-??-??-??-??) # MAC address in BOOTIF form + _dev=$(iface_for_mac "$(fix_bootif "$dev")") + [ -n "$_dev" ] && dev="$_dev" + ;; + esac + + # If this option isn't directed at our interface, skip it + if [ -n "$dev" ]; then + if [ "$dev" != "$netif" ]; then + [ ! -e "/sys/class/net/$dev" ] \ + && warn "Network interface '$dev' does not exist!" + continue + fi + else + iface_is_enslaved "$netif" && continue + fi + + # Store config for later use + for i in ip srv gw mask hostname macaddr mtu dns1 dns2; do + eval '[ "$'$i'" ] && echo '$i'="$'$i'"' + done > "/tmp/net.$netif.override" + + for autoopt in $(str_replace "$autoconf" "," " "); do + case $autoopt in + dhcp | on | any) + do_dhcp -4 + ;; + single-dhcp) + do_dhcp_parallel -4 + exit 0 + ;; + dhcp6) + load_ipv6 + do_dhcp -6 + ;; + auto6) + do_ipv6auto + ;; + either6) + do_ipv6auto || do_dhcp -6 + ;; + link6) + do_ipv6link + ;; + *) + do_static + ;; + esac + done + ret=$? + + # setup nameserver + for s in "$dns1" "$dns2" $(getargs nameserver); do + [ -n "$s" ] || continue + echo "nameserver $s" >> "/tmp/net.$netif.resolv.conf" + done + + if [ $ret -eq 0 ]; then + : > "/tmp/net.${netif}.up" + + if [ -z "$DO_VLAN" ] && [ -e "/sys/class/net/${netif}/address" ]; then + : > "/tmp/net.$(cat "/sys/class/net/${netif}/address").up" + fi + + # and finally, finish interface set up if there isn't already a script + # to do so (which is the case in the dhcp path) + if [ ! -e "$hookdir/initqueue/setup_net_$netif.sh" ]; then + setup_net "$netif" + source_hook initqueue/online "$netif" + if [ -z "$manualup" ]; then + /sbin/netroot "$netif" + fi + fi + + exit $ret + fi +done + +# no ip option directed at our interface? +if [ -z "$NO_AUTO_DHCP" ] && [ ! -e "/tmp/net.${netif}.up" ]; then + ret=1 + if [ -e /tmp/net.bootdev ]; then + read -r BOOTDEV < /tmp/net.bootdev + if [ "$netif" = "$BOOTDEV" ] || [ "$BOOTDEV" = "$(cat "/sys/class/net/${netif}/address")" ]; then + do_dhcp + ret=$? + fi + else + # No ip lines, no bootdev -> default to dhcp + ip=$(getarg ip) + + if getargs 'ip=dhcp6' > /dev/null || [ -z "$ip" -a "$netroot" = "dhcp6" ]; then + load_ipv6 + do_dhcp -6 + ret=$? + fi + if getargs 'ip=dhcp' > /dev/null || [ -z "$ip" -a "$netroot" != "dhcp6" ]; then + do_dhcp -4 + ret=$? + fi + fi + + for s in $(getargs nameserver); do + [ -n "$s" ] || continue + echo "nameserver $s" >> "/tmp/net.$netif.resolv.conf" + done + + if [ "$ret" -eq 0 ] && [ -n "$(ls "/tmp/leaseinfo.${netif}"* 2> /dev/null)" ]; then + : > "/tmp/net.${netif}.did-setup" + if [ -e "/sys/class/net/${netif}/address" ]; then + : > "/tmp/net.$(cat "/sys/class/net/${netif}/address").did-setup" + fi + fi +fi + +exit 0 |