modules.d/45ifcfg/write-ifcfg.sh

   1 #!/bin/sh
   2 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
   3 # ex: ts=8 sw=4 sts=4 et filetype=sh
   4
   5 # NFS root might have reached here before /tmp/net.ifaces was written
   6 udevadm settle --timeout=30
   7
   8 if [ -e /tmp/bridge.info ]; then
   9     . /tmp/bridge.info
  10 fi
  11
  12 if [ -e /tmp/vlan.info ]; then
  13     . /tmp/vlan.info
  14 fi
  15
  16 mkdir -m 0755 -p /tmp/ifcfg/
  17 mkdir -m 0755 -p /tmp/ifcfg-leases/
  18
  19 get_config_line_by_subchannel()
  20 {
  21     local CHANNEL
  22     local line
  23
  24     CHANNELS="$1"
  25     while read line; do
  26         if strstr "$line" "$CHANNELS"; then
  27             echo $line
  28             return 0
  29         fi
  30     done < /etc/ccw.conf
  31     return 1
  32 }
  33
  34 print_s390() {
  35     local _netif
  36     local SUBCHANNELS
  37     local OPTIONS
  38     local NETTYPE
  39     local CONFIG_LINE
  40     local i
  41     local channel
  42     local OLD_IFS
  43
  44     _netif="$1"
  45     # if we find ccw channel, then use those, instead of
  46     # of the MAC
  47     SUBCHANNELS=$({
  48         for i in /sys/class/net/$_netif/device/cdev[0-9]*; do
  49             [ -e $i ] || continue
  50             channel=$(readlink -f $i)
  51             echo -n "${channel##*/},"
  52         done
  53     })
  54     [ -n "$SUBCHANNELS" ] || return 1
  55
  56     SUBCHANNELS=${SUBCHANNELS%,}
  57     echo "SUBCHANNELS=\"${SUBCHANNELS}\""
  58
  59     CONFIG_LINE=$(get_config_line_by_subchannel $SUBCHANNELS)
  60     [ $? -ne 0 -o -z "$CONFIG_LINE" ] && return 0
  61
  62     OLD_IFS=$IFS
  63     IFS=","
  64     set -- $CONFIG_LINE
  65     IFS=$OLD_IFS
  66     NETTYPE=$1
  67     shift
  68     SUBCHANNELS="$1"
  69     OPTIONS=""
  70     shift
  71     while [ $# -gt 0 ]; do
  72         case $1 in
  73             *=*) OPTIONS="$OPTIONS $1";;
  74         esac
  75         shift
  76     done
  77     OPTIONS=${OPTIONS## }
  78     echo "NETTYPE=\"${NETTYPE}\""
  79     echo "OPTIONS=\"${OPTIONS}\""
  80     return 0
  81 }
  82
  83 for netup in /tmp/net.*.did-setup ; do
  84     [ -f $netup ] || continue
  85
  86     netif=${netup%%.did-setup}
  87     netif=${netif##*/net.}
  88     strglobin "$netif" ":*:*:*:*:" && continue
  89     [ -e /tmp/ifcfg/ifcfg-$netif ] && continue
  90     unset bridge
  91     unset bond
  92     unset bondslaves
  93     unset bondname
  94     unset bondoptions
  95     unset uuid
  96     unset ip
  97     unset gw
  98     unset mtu
  99     unset mask
 100     unset macaddr
 101     unset slave
 102     unset ethname
 103     [ -e /tmp/bond.${netif}.info ] && . /tmp/bond.${netif}.info
 104
 105     uuid=$(cat /proc/sys/kernel/random/uuid)
 106     if [ "$netif" = "$bridgename" ]; then
 107         bridge=yes
 108     elif [ "$netif" = "$bondname" ]; then
 109     # $netif can't be bridge and bond at the same time
 110         bond=yes
 111     fi
 112     if [ "$netif" = "$vlanname" ]; then
 113         vlan=yes
 114     fi
 115     [ -e /sys/class/net/$netif/address ] && \
 116         cat /sys/class/net/$netif/address > /tmp/net.$netif.hwaddr
 117     {
 118         echo "# Generated by dracut initrd"
 119         echo "DEVICE=\"$netif\""
 120         echo "ONBOOT=yes"
 121         echo "NETBOOT=yes"
 122         echo "UUID=\"$uuid\""
 123         if [ -f /tmp/dhclient.$netif.lease ]; then
 124             [ -f /tmp/dhclient.$netif.dhcpopts ] && . /tmp/dhclient.$netif.dhcpopts
 125             strstr "$(ip -6 addr show dev $netif)" 'inet6' && echo "IPV6INIT=yes"
 126             if [ -f /tmp/net.$netif.has_ibft_config ]; then
 127                 echo "BOOTPROTO=ibft"
 128             else
 129                 echo "BOOTPROTO=dhcp"
 130             fi
 131             cp /tmp/dhclient.$netif.lease /tmp/ifcfg-leases/dhclient-$uuid-$netif.lease
 132         else
 133             # If we've booted with static ip= lines, the override file is there
 134             [ -e /tmp/net.$netif.override ] && . /tmp/net.$netif.override
 135             if strglobin "$ip" '*:*:*'; then
 136                 echo "IPV6INIT=yes"
 137                 echo "IPV6_AUTOCONF=no"
 138                 echo "IPV6ADDR=\"$ip/$mask\""
 139             else
 140                 if [ -f /tmp/net.$netif.has_ibft_config ]; then
 141                     echo "BOOTPROTO=ibft"
 142                 else
 143                     echo "BOOTPROTO=none"
 144                     echo "IPADDR=\"$ip\""
 145                     if strstr "$mask" "."; then
 146                         echo "NETMASK=\"$mask\""
 147                     else
 148                         echo "PREFIX=\"$mask\""
 149                     fi
 150                 fi
 151             fi
 152             if strglobin "$gw" '*:*:*'; then
 153                 echo "IPV6_DEFAULTGW=\"$gw\""
 154             elif [ -n "$gw" ]; then
 155                 echo "GATEWAY=\"$gw\""
 156             fi
 157         fi
 158         [ -n "$mtu" ] && echo "MTU=\"$mtu\""
 159     } > /tmp/ifcfg/ifcfg-$netif
 160
 161     # bridge needs different things written to ifcfg
 162     if [ -z "$bridge" ] && [ -z "$bond" ] && [ -z "$vlan" ]; then
 163         # standard interface
 164         {
 165             [ -n "$macaddr" ] && echo "MACADDR=\"$macaddr\""
 166             if ! print_s390 $netif; then
 167                 if [ -z "$macaddr" ] && \
 168                     ! is_persistent_ethernet_name "$netif" && \
 169                     [ -f /sys/class/net/$netif/addr_assign_type ] && \
 170                     [ "$(cat /sys/class/net/$netif/addr_assign_type)" = "0" ] && \
 171                     [ -f /sys/class/net/$netif/address ]; then
 172                     echo "HWADDR=\"$(cat /sys/class/net/$netif/address)\""
 173                 fi
 174             fi
 175             echo "TYPE=Ethernet"
 176             echo "NAME=\"$netif\""
 177             [ -n "$mtu" ] && echo "MTU=\"$mtu\""
 178         } >> /tmp/ifcfg/ifcfg-$netif
 179     fi
 180
 181     if [ -n "$vlan" ] ; then
 182         {
 183             echo "TYPE=Vlan"
 184             echo "NAME=\"$netif\""
 185             echo "VLAN=yes"
 186             echo "PHYSDEV=\"$phydevice\""
 187         } >> /tmp/ifcfg/ifcfg-$netif
 188     fi
 189
 190     if [ -n "$bond" ] ; then
 191         # bond interface
 192         {
 193             # This variable is an indicator of a bond interface for initscripts
 194             echo "BONDING_OPTS=\"$bondoptions\""
 195             echo "NAME=\"$netif\""
 196             echo "TYPE=Bond"
 197         } >> /tmp/ifcfg/ifcfg-$netif
 198
 199         for slave in $bondslaves ; do
 200             # write separate ifcfg file for the raw eth interface
 201             {
 202                 echo "# Generated by dracut initrd"
 203                 echo "DEVICE=\"$slave\""
 204                 echo "TYPE=Ethernet"
 205                 echo "ONBOOT=yes"
 206                 echo "NETBOOT=yes"
 207                 echo "HWADDR=\"$(cat /sys/class/net/$slave/address)\""
 208                 echo "SLAVE=yes"
 209                 echo "MASTER=\"$netif\""
 210                 echo "NAME=\"$slave\""
 211             } >> /tmp/ifcfg/ifcfg-$slave
 212         done
 213     fi
 214
 215     if [ -n "$bridge" ] ; then
 216         # bridge
 217         {
 218             echo "TYPE=Bridge"
 219             echo "NAME=\"$netif\""
 220         } >> /tmp/ifcfg/ifcfg-$netif
 221         if [ "$ethname" = "$bondname" ] ; then
 222             {
 223                 echo "# Generated by dracut initrd"
 224                 echo "DEVICE=\"$bondname\""
 225                 echo "ONBOOT=yes"
 226                 echo "NETBOOT=yes"
 227                 # This variable is an indicator of a bond interface for initscripts
 228                 echo "BONDING_OPTS=\"$bondoptions\""
 229                 echo "BRIDGE=\"$netif\""
 230                 echo "NAME=\"$bondname\""
 231             } >> /tmp/ifcfg/ifcfg-$bondname
 232             for slave in $bondslaves ; do
 233                 # write separate ifcfg file for the raw eth interface
 234                 {
 235                     echo "# Generated by dracut initrd"
 236                     echo "DEVICE=\"$slave\""
 237                     echo "TYPE=Ethernet"
 238                     echo "ONBOOT=yes"
 239                     echo "NETBOOT=yes"
 240                     echo "HWADDR=\"$(cat /sys/class/net/$slave/address)\""
 241                     echo "SLAVE=yes"
 242                     echo "MASTER=\"$bondname\""
 243                     echo "NAME=\"$slave\""
 244                 } >> /tmp/ifcfg/ifcfg-$slave
 245             done
 246         else
 247             # write separate ifcfg file for the raw eth interface
 248             {
 249                 echo "# Generated by dracut initrd"
 250                 echo "DEVICE=\"$ethname\""
 251                 echo "TYPE=Ethernet"
 252                 echo "ONBOOT=yes"
 253                 echo "NETBOOT=yes"
 254                 echo "HWADDR=\"$(cat /sys/class/net/$ethname/address)\""
 255                 echo "BRIDGE=\"$netif\""
 256                 echo "NAME=\"$ethname\""
 257             } >> /tmp/ifcfg/ifcfg-$ethname
 258         fi
 259     fi
 260     i=1
 261     for ns in $(getargs nameserver); do
 262         echo "DNS${i}=\"${ns}\"" >> /tmp/ifcfg/ifcfg-$netif
 263         i=$((i+1))
 264     done
 265 done
 266
 267 # Pass network opts
 268 mkdir -m 0755 -p /run/initramfs/state/etc/sysconfig/network-scripts
 269 mkdir -m 0755 -p /run/initramfs/state/var/lib/dhclient
 270 echo "files /etc/sysconfig/network-scripts" >> /run/initramfs/rwtab
 271 echo "files /var/lib/dhclient" >> /run/initramfs/rwtab
 272 {
 273     cp /tmp/net.* /run/initramfs/
 274     cp /tmp/net.$netif.resolv.conf /run/initramfs/state/etc/resolv.conf
 275     copytree /tmp/ifcfg /run/initramfs/state/etc/sysconfig/network-scripts
 276     cp /tmp/ifcfg-leases/* /run/initramfs/state/var/lib/dhclient
 277 } > /dev/null 2>&1