scripts/live-bottom/23networking

   1 #!/bin/sh
   2
   3 #set -e
   4
   5 # initramfs-tools header
   6
   7 PREREQ=""
   8
   9 prereqs()
  10 {
  11         echo "${PREREQ}"
  12 }
  13
  14 case "${1}" in
  15         prereqs)
  16                 prereqs
  17                 exit 0
  18                 ;;
  19 esac
  20
  21 # live-initramfs header
  22
  23 if [ -n "${NONETWORKING}" ]
  24 then
  25         exit 0
  26 fi
  27
  28 . /scripts/live-functions
  29
  30 log_begin_msg "Preconfiguring networking..."
  31
  32 # live-initramfs script
  33
  34 IFFILE="/root/etc/network/interfaces"
  35
  36 if [ "${STATICIP}" = "frommedia" -a -e  "$IFFILE" ]
  37 then
  38         # will use existent /etc/network/interfaces
  39         log_end_msg
  40         exit 0
  41 fi
  42
  43 cat > "$IFFILE" << EOF
  44 auto lo
  45 iface lo inet loopback
  46
  47 EOF
  48
  49 udevtrigger
  50 udevsettle
  51
  52 if [ -z "${NETBOOT}" -a -n "${STATICIP}" -a "${STATICIP}" != "frommedia" ]
  53 then
  54         parsed=$(echo "${STATICIP}" | sed -e 's/:/ /g')
  55
  56         for ifline in ${parsed}
  57         do
  58                 ifname="$(echo ${ifline} | cut -f1 -d ',')"
  59                 ifaddress="$(echo ${ifline} | cut -f2 -d ',')"
  60                 ifnetmask="$(echo ${ifline} | cut -f3 -d ',')"
  61                 ifgateway="$(echo ${ifline} | cut -f4 -d ',')"
  62
  63 cat >> "$IFFILE" << EOF
  64 auto ${ifname}
  65 iface ${ifname} inet static
  66     address ${ifaddress}
  67     netmask ${ifnetmask}
  68     gateway ${ifgateway}
  69
  70 EOF
  71
  72         done
  73 else
  74         if [ -z "${NETBOOT}" ]
  75         then
  76                 # default, dhcp assigned
  77                 method="dhcp"
  78         else
  79                 # make sure that the preconfigured interface would not get reassigned by dhcp
  80                 # on startup by ifup script - otherwise our root fs might be disconnected!
  81                 method="manual"
  82         fi
  83
  84         # iterate the physical interfaces and add them to the interfaces list
  85         for interface in /sys/class/net/eth* /sys/class/net/ath* /sys/class/net/wlan*
  86         do
  87                 [ -e $interface ] || continue
  88                 i="$(basename $interface)"
  89
  90 cat >> "$IFFILE" << EOF
  91 auto $i
  92 iface $i inet $method
  93
  94 EOF
  95
  96         done
  97
  98         if [ ! -f /root/etc/resolv.conf -a -f /netboot.config ]
  99         then
 100                 # create a resolv.conf if it is not present
 101                 cp /netboot.config /root/var/log/netboot.config
 102
 103                 rc_search=$(cat netboot.config | awk '/domain/{print $3}')
 104                 rc_server0=$(cat netboot.config | awk '/dns0/{print $5}')
 105                 rc_server1=$(cat netboot.config | awk '/dns0/{print $8}')
 106                 rc_server0="nameserver ${rc_server0}"
 107
 108                 if [ "${rc_server1}" = "0.0.0.0" ]
 109                 then
 110                         rc_server1=""
 111                 else
 112                         rc_server1="nameserver ${rc_server1}"
 113                 fi
 114
 115 cat > /root/etc/resolv.conf << EOF
 116 # /etc/resolv.conf
 117 # Autogenerated by live-initramfs
 118 search ${rc_search}
 119 domain ${rc_search}
 120 ${rc_server0}
 121 ${rc_server1}
 122 EOF
 123
 124                 cat /root/etc/resolv.conf >> /root/var/log/netboot.config
 125         fi
 126 fi
 127
 128 #for i in eth0 eth1 eth2 ath0 wlan0
 129 #do
 130 #       grep -q "iface $i" $IFFILE && continue
 131 #
 132 #cat >> "$IFFILE" << EOF
 133 #auto $i
 134 #iface $i inet dhcp
 135 #
 136 #EOF
 137 #
 138 #done
 139
 140 log_end_msg