diff options
Diffstat (limited to 'modules.d/45ifcfg/write-ifcfg.sh')
| -rwxr-xr-x | modules.d/45ifcfg/write-ifcfg.sh | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/modules.d/45ifcfg/write-ifcfg.sh b/modules.d/45ifcfg/write-ifcfg.sh new file mode 100755 index 0000000..5550cce --- /dev/null +++ b/modules.d/45ifcfg/write-ifcfg.sh @@ -0,0 +1,311 @@ +#!/bin/sh + +# NFS root might have reached here before /tmp/net.ifaces was written +type is_persistent_ethernet_name > /dev/null 2>&1 || . /lib/net-lib.sh + +udevadm settle --timeout=30 + +# shellcheck disable=SC2174 +mkdir -m 0755 -p /tmp/ifcfg/ +# shellcheck disable=SC2174 +mkdir -m 0755 -p /tmp/ifcfg-leases/ + +get_config_line_by_subchannel() { + local CHANNELS + local line + + CHANNELS="$1" + while read -r line || [ -n "$line" ]; do + if strstr "$line" "$CHANNELS"; then + echo "$line" + return 0 + fi + done < /etc/ccw.conf + return 1 +} + +print_s390() { + local _netif + local SUBCHANNELS + local OPTIONS + local NETTYPE + local CONFIG_LINE + local i + local channel + local OLD_IFS + + _netif="$1" + # if we find ccw channel, then use those, instead of + # of the MAC + SUBCHANNELS=$({ + for i in /sys/class/net/"$_netif"/device/cdev[0-9]*; do + [ -e "$i" ] || continue + channel=$(readlink -f "$i") + printf '%s' "${channel##*/}," + done + }) + [ -n "$SUBCHANNELS" ] || return 1 + + SUBCHANNELS=${SUBCHANNELS%,} + echo "SUBCHANNELS=\"${SUBCHANNELS}\"" + + CONFIG_LINE=$(get_config_line_by_subchannel "$SUBCHANNELS") + # shellcheck disable=SC2181 + [ $? -ne 0 -o -z "$CONFIG_LINE" ] && return 0 + + OLD_IFS=$IFS + IFS="," + # shellcheck disable=SC2086 + set -- $CONFIG_LINE + IFS=$OLD_IFS + NETTYPE=$1 + shift + SUBCHANNELS="$1" + OPTIONS="" + shift + while [ $# -gt 0 ]; do + case $1 in + *=*) OPTIONS="$OPTIONS $1" ;; + esac + shift + done + OPTIONS=${OPTIONS## } + echo "NETTYPE=\"${NETTYPE}\"" + echo "OPTIONS=\"${OPTIONS}\"" + return 0 +} + +hw_bind() { + local _netif="$1" + local _macaddr="$2" + + [ -n "$_macaddr" ] \ + && echo "MACADDR=\"$_macaddr\"" + + print_s390 "$_netif" \ + && return 0 + + [ -n "$_macaddr" ] && return 0 + + is_persistent_ethernet_name "$_netif" && return 0 + + [ -f "/sys/class/net/$_netif/addr_assign_type" ] \ + && [ "$(cat "/sys/class/net/$_netif/addr_assign_type")" != "0" ] \ + && return 1 + + [ -f "/sys/class/net/$_netif/address" ] \ + || return 1 + + echo "HWADDR=\"$(cat /sys/class/net/"$_netif"/address)\"" +} + +interface_bind() { + local _netif="$1" + local _macaddr="$2" + + if [ ! -e "/sys/class/net/$_netif" ]; then + warn "Cannot find network interface '$_netif'!" + return 1 + fi + + # see, if we can bind it to some hw params + if hw_bind "$_netif" "$_macaddr"; then + # only print out DEVICE, if it's user assigned + is_kernel_ethernet_name "$_netif" && return 0 + fi + + echo "DEVICE=\"$_netif\"" +} + +for netup in /tmp/net.*.did-setup; do + [ -f "$netup" ] || continue + + netif=${netup%%.did-setup} + netif=${netif##*/net.} + strglobin "$netif" ":*:*:*:*:" && continue + [ -e /tmp/ifcfg/ifcfg-"$netif" ] && continue + unset bridge + unset bond + unset bondslaves + unset bondname + unset bondoptions + unset bridgename + unset bridgeslaves + unset team + unset uuid + unset ip + unset gw + unset mtu + unset mask + unset macaddr + unset slave + unset ethname + unset vlan + unset vlanname + unset phydevice + + # shellcheck disable=SC1090 + [ -e /tmp/bond."${netif}".info ] && . /tmp/bond."${netif}".info + # shellcheck disable=SC1090 + [ -e /tmp/bridge."${netif}".info ] && . /tmp/bridge."${netif}".info + # shellcheck disable=SC1090 + [ -e /tmp/team."${netif}".info ] && . /tmp/team."${netif}".info + + read -r uuid < /proc/sys/kernel/random/uuid + if [ "$netif" = "$bridgename" ]; then + bridge=yes + elif [ "$netif" = "$teammaster" ]; then + team=yes + elif [ "$netif" = "$bondname" ]; then + # $netif can't be bridge and bond at the same time + bond=yes + fi + + for i in "/tmp/vlan.${netif}."*; do + [ ! -e "$i" ] && continue + # shellcheck disable=SC1090 + . "$i" + vlan=yes + break + done + + # skip team interfaces for now, the host config must be in sync + [ "$netif" = "$teammaster" ] && continue + + { + echo "# Generated by dracut initrd" + echo "NAME=\"$netif\"" + [ -z "$vlan" ] && interface_bind "$netif" "$macaddr" + echo "ONBOOT=yes" + echo "NETBOOT=yes" + echo "UUID=\"$uuid\"" + strstr "$(ip -6 addr show dev "$netif")" 'inet6' && echo "IPV6INIT=yes" + if [ -f /tmp/dhclient."$netif".lease ]; then + # shellcheck disable=SC1090 + [ -f /tmp/dhclient."$netif".dhcpopts ] && . /tmp/dhclient."$netif".dhcpopts + if [ -f /tmp/net."$netif".has_ibft_config ]; then + echo "BOOTPROTO=ibft" + else + echo "BOOTPROTO=dhcp" + fi + cp /tmp/dhclient."$netif".lease /tmp/ifcfg-leases/dhclient-"$uuid"-"$netif".lease + else + # If we've booted with static ip= lines, the override file is there + # shellcheck disable=SC1090 + [ -e /tmp/net."$netif".override ] && . /tmp/net."$netif".override + if strglobin "$ip" '*:*:*'; then + echo "IPV6INIT=yes" + echo "IPV6_AUTOCONF=no" + echo "IPV6ADDR=\"$ip/$mask\"" + else + if [ -f /tmp/net."$netif".has_ibft_config ]; then + echo "BOOTPROTO=ibft" + else + echo "BOOTPROTO=none" + echo "IPADDR=\"$ip\"" + if strstr "$mask" "."; then + echo "NETMASK=\"$mask\"" + else + echo "PREFIX=\"$mask\"" + fi + fi + fi + if strglobin "$gw" '*:*:*'; then + echo "IPV6_DEFAULTGW=\"$gw\"" + elif [ -n "$gw" ]; then + echo "GATEWAY=\"$gw\"" + fi + fi + [ -n "$mtu" ] && echo "MTU=\"$mtu\"" + } > /tmp/ifcfg/ifcfg-"$netif" + + # bridge needs different things written to ifcfg + if [ -z "$bridge" ] && [ -z "$bond" ] && [ -z "$vlan" ] && [ -z "$team" ]; then + # standard interface + echo "TYPE=Ethernet" >> /tmp/ifcfg/ifcfg-"$netif" + fi + + if [ -n "$vlan" ]; then + { + echo "TYPE=Vlan" + echo "DEVICE=\"$netif\"" + echo "VLAN=yes" + echo "PHYSDEV=\"$phydevice\"" + } >> /tmp/ifcfg/ifcfg-"$netif" + fi + + if [ -n "$bond" ]; then + # bond interface + { + # This variable is an indicator of a bond interface for initscripts + echo "BONDING_OPTS=\"$bondoptions\"" + echo "NAME=\"$netif\"" + echo "TYPE=Bond" + } >> /tmp/ifcfg/ifcfg-"$netif" + + for slave in $bondslaves; do + # write separate ifcfg file for the raw eth interface + ( + echo "# Generated by dracut initrd" + echo "NAME=\"$slave\"" + echo "TYPE=Ethernet" + echo "ONBOOT=yes" + echo "NETBOOT=yes" + echo "SLAVE=yes" + echo "MASTER=\"$netif\"" + echo "UUID=\"$(cat /proc/sys/kernel/random/uuid)\"" + unset macaddr + # shellcheck disable=SC1090 + [ -e /tmp/net."$slave".override ] && . /tmp/net."$slave".override + interface_bind "$slave" "$macaddr" + ) >> /tmp/ifcfg/ifcfg-"$slave" + done + fi + + if [ -n "$bridge" ]; then + # bridge + { + echo "TYPE=Bridge" + echo "NAME=\"$netif\"" + } >> /tmp/ifcfg/ifcfg-"$netif" + for slave in $bridgeslaves; do + # write separate ifcfg file for the raw eth interface + ( + echo "# Generated by dracut initrd" + echo "NAME=\"$slave\"" + echo "TYPE=Ethernet" + echo "ONBOOT=yes" + echo "NETBOOT=yes" + echo "BRIDGE=\"$bridgename\"" + echo "UUID=\"$(cat /proc/sys/kernel/random/uuid)\"" + unset macaddr + # shellcheck disable=SC1090 + [ -e /tmp/net."$slave".override ] && . /tmp/net."$slave".override + interface_bind "$slave" "$macaddr" + ) >> /tmp/ifcfg/ifcfg-"$slave" + done + fi + i=1 + for ns in $(getargs nameserver) $dns1 $dns2; do + echo "DNS${i}=\"${ns}\"" >> /tmp/ifcfg/ifcfg-"$netif" + i=$((i + 1)) + done + + [ -f /tmp/net.route6."$netif" ] && cp /tmp/net.route6."$netif" /tmp/ifcfg/route6-"$netif" + [ -f /tmp/net.route."$netif" ] && cp /tmp/net.route."$netif" /tmp/ifcfg/route-"$netif" +done + +# Pass network opts +mkdir -m 0755 -p /run/initramfs/state/etc/sysconfig/network-scripts +mkdir -m 0755 -p /run/initramfs/state/var/lib/dhclient +echo "files /etc/sysconfig/network-scripts" >> /run/initramfs/rwtab +echo "files /var/lib/dhclient" >> /run/initramfs/rwtab +{ + cp /tmp/net.* /run/initramfs/ + for i in /tmp/net.*.resolv.conf; do + [ -f "$i" ] && cat "$i" + done | awk '!($0 in a) { a[$0]; print }' > /run/initramfs/state/etc/resolv.conf + [ -s /run/initramfs/state/etc/resolv.conf ] || rm -f /run/initramfs/state/etc/resolv.conf + copytree /tmp/ifcfg /run/initramfs/state/etc/sysconfig/network-scripts + cp /tmp/ifcfg-leases/* /run/initramfs/state/var/lib/dhclient +} > /dev/null 2>&1 |