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

   1 #!/bin/sh
   2
   3 # NFS root might have reached here before /tmp/net.ifaces was written
   4 type is_persistent_ethernet_name >/dev/null 2>&1 || . /lib/net-lib.sh
   5
   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="$1"
  25     while read line || [ -n "$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 hw_bind() {
  84     local _netif="$1"
  85     local _macaddr="$2"
  86
  87     [ -n "$_macaddr" ] \
  88         && echo "MACADDR=\"$_macaddr\""
  89
  90     print_s390 "$_netif" \
  91         && return 0
  92
  93     [ -n "$_macaddr" ] && return 0
  94
  95     is_persistent_ethernet_name "$_netif" && return 0
  96
  97     [ -f "/sys/class/net/$_netif/addr_assign_type" ] \
  98         && [ "$(cat "/sys/class/net/$_netif/addr_assign_type")" != "0" ] \
  99         && return 1
 100
 101     [ -f "/sys/class/net/$_netif/address" ] \
 102         || return 1
 103
 104     echo "HWADDR=\"$(cat /sys/class/net/$_netif/address)\""
 105 }
 106
 107 interface_bind() {
 108     local _netif="$1"
 109     local _macaddr="$2"
 110
 111     # see, if we can bind it to some hw parms
 112     if hw_bind "$_netif" "$_macaddr"; then
 113         # only print out DEVICE, if it's user assigned
 114         is_kernel_ethernet_name "$_netif" && return 0
 115     fi
 116
 117     echo "DEVICE=\"$_netif\""
 118 }
 119
 120 for netup in /tmp/net.*.did-setup ; do
 121     [ -f $netup ] || continue
 122
 123     netif=${netup%%.did-setup}
 124     netif=${netif##*/net.}
 125     strglobin "$netif" ":*:*:*:*:" && continue
 126     [ -e /tmp/ifcfg/ifcfg-$netif ] && continue
 127     unset bridge
 128     unset bond
 129     unset bondslaves
 130     unset bondname
 131     unset bondoptions
 132     unset uuid
 133     unset ip
 134     unset gw
 135     unset mtu
 136     unset mask
 137     unset macaddr
 138     unset slave
 139     unset ethname
 140     unset vlan
 141
 142     [ -e /tmp/bond.${netif}.info ] && . /tmp/bond.${netif}.info
 143
 144     uuid=$(cat /proc/sys/kernel/random/uuid)
 145     if [ "$netif" = "$bridgename" ]; then
 146         bridge=yes
 147     elif [ "$netif" = "$bondname" ]; then
 148     # $netif can't be bridge and bond at the same time
 149         bond=yes
 150     fi
 151     if [ "$netif" = "$vlanname" ]; then
 152         vlan=yes
 153     fi
 154
 155     {
 156         echo "# Generated by dracut initrd"
 157         echo "NAME=\"$netif\""
 158         interface_bind "$netif" "$macaddr"
 159         echo "ONBOOT=yes"
 160         echo "NETBOOT=yes"
 161         echo "UUID=\"$uuid\""
 162         strstr "$(ip -6 addr show dev $netif)" 'inet6' && echo "IPV6INIT=yes"
 163         if [ -f /tmp/dhclient.$netif.lease ]; then
 164             [ -f /tmp/dhclient.$netif.dhcpopts ] && . /tmp/dhclient.$netif.dhcpopts
 165             if [ -f /tmp/net.$netif.has_ibft_config ]; then
 166                 echo "BOOTPROTO=ibft"
 167             else
 168                 echo "BOOTPROTO=dhcp"
 169             fi
 170             cp /tmp/dhclient.$netif.lease /tmp/ifcfg-leases/dhclient-$uuid-$netif.lease
 171         else
 172             # If we've booted with static ip= lines, the override file is there
 173             [ -e /tmp/net.$netif.override ] && . /tmp/net.$netif.override
 174             if strglobin "$ip" '*:*:*'; then
 175                 echo "IPV6INIT=yes"
 176                 echo "IPV6_AUTOCONF=no"
 177                 echo "IPV6ADDR=\"$ip/$mask\""
 178             else
 179                 if [ -f /tmp/net.$netif.has_ibft_config ]; then
 180                     echo "BOOTPROTO=ibft"
 181                 else
 182                     echo "BOOTPROTO=none"
 183                     echo "IPADDR=\"$ip\""
 184                     if strstr "$mask" "."; then
 185                         echo "NETMASK=\"$mask\""
 186                     else
 187                         echo "PREFIX=\"$mask\""
 188                     fi
 189                 fi
 190             fi
 191             if strglobin "$gw" '*:*:*'; then
 192                 echo "IPV6_DEFAULTGW=\"$gw\""
 193             elif [ -n "$gw" ]; then
 194                 echo "GATEWAY=\"$gw\""
 195             fi
 196         fi
 197         [ -n "$mtu" ] && echo "MTU=\"$mtu\""
 198     } > /tmp/ifcfg/ifcfg-$netif
 199
 200     # bridge needs different things written to ifcfg
 201     if [ -z "$bridge" ] && [ -z "$bond" ] && [ -z "$vlan" ]; then
 202         # standard interface
 203         {
 204             echo "TYPE=Ethernet"
 205             [ -n "$mtu" ] && echo "MTU=\"$mtu\""
 206         } >> /tmp/ifcfg/ifcfg-$netif
 207     fi
 208
 209     if [ -n "$vlan" ] ; then
 210         {
 211             echo "TYPE=Vlan"
 212             echo "NAME=\"$netif\""
 213             echo "VLAN=yes"
 214             echo "PHYSDEV=\"$phydevice\""
 215         } >> /tmp/ifcfg/ifcfg-$netif
 216     fi
 217
 218     if [ -n "$bond" ] ; then
 219         # bond interface
 220         {
 221             # This variable is an indicator of a bond interface for initscripts
 222             echo "BONDING_OPTS=\"$bondoptions\""
 223             echo "NAME=\"$netif\""
 224             echo "TYPE=Bond"
 225         } >> /tmp/ifcfg/ifcfg-$netif
 226
 227         for slave in $bondslaves ; do
 228             # write separate ifcfg file for the raw eth interface
 229             (
 230                 echo "# Generated by dracut initrd"
 231                 echo "NAME=\"$slave\""
 232                 echo "TYPE=Ethernet"
 233                 echo "ONBOOT=yes"
 234                 echo "NETBOOT=yes"
 235                 echo "SLAVE=yes"
 236                 echo "MASTER=\"$netif\""
 237                 echo "UUID=\"$(cat /proc/sys/kernel/random/uuid)\""
 238                 unset macaddr
 239                 [ -e /tmp/net.$slave.override ] && . /tmp/net.$slave.override
 240                 interface_bind "$slave" "$macaddr"
 241             ) >> /tmp/ifcfg/ifcfg-$slave
 242         done
 243     fi
 244
 245     if [ -n "$bridge" ] ; then
 246         # bridge
 247         {
 248             echo "TYPE=Bridge"
 249             echo "NAME=\"$netif\""
 250         } >> /tmp/ifcfg/ifcfg-$netif
 251         for slave in $bridgeslaves ; do
 252             # write separate ifcfg file for the raw eth interface
 253             (
 254                 echo "# Generated by dracut initrd"
 255                 echo "NAME=\"$slave\""
 256                 echo "TYPE=Ethernet"
 257                 echo "ONBOOT=yes"
 258                 echo "NETBOOT=yes"
 259                 echo "BRIDGE=\"$bridgename\""
 260                 echo "UUID=\"$(cat /proc/sys/kernel/random/uuid)\""
 261                 unset macaddr
 262                 [ -e /tmp/net.$slave.override ] && . /tmp/net.$slave.override
 263                 interface_bind "$slave" "$macaddr"
 264             ) >> /tmp/ifcfg/ifcfg-$slave
 265         done
 266     fi
 267     i=1
 268     for ns in $(getargs nameserver); do
 269         echo "DNS${i}=\"${ns}\"" >> /tmp/ifcfg/ifcfg-$netif
 270         i=$((i+1))
 271     done
 272
 273     [ -f /tmp/net.route6."$netif" ] && cp /tmp/net.route6."$netif" /tmp/ifcfg/route6-"$netif"
 274     [ -f /tmp/net.route."$netif" ] && cp /tmp/net.route."$netif" /tmp/ifcfg/route-"$netif"
 275 done
 276
 277 # Pass network opts
 278 mkdir -m 0755 -p /run/initramfs/state/etc/sysconfig/network-scripts
 279 mkdir -m 0755 -p /run/initramfs/state/var/lib/dhclient
 280 echo "files /etc/sysconfig/network-scripts" >> /run/initramfs/rwtab
 281 echo "files /var/lib/dhclient" >> /run/initramfs/rwtab
 282 {
 283     cp /tmp/net.* /run/initramfs/
 284     cp /tmp/net.$netif.resolv.conf /run/initramfs/state/etc/resolv.conf
 285     copytree /tmp/ifcfg /run/initramfs/state/etc/sysconfig/network-scripts
 286     cp /tmp/ifcfg-leases/* /run/initramfs/state/var/lib/dhclient
 287 } > /dev/null 2>&1