scripts/boot/netbase.sh

   1 #!/bin/sh
   2
   3 #set -e
   4
   5 Netbase ()
   6 {
   7         if [ -n "${NONETWORKING}" ]
   8         then
   9                 return
  10         fi
  11
  12         # FIXME: stop hardcoding overloading of initramfs-tools functions
  13         . /scripts/functions
  14         . /lib/live/boot/initramfs-tools.sh
  15
  16         log_begin_msg "Preconfiguring networking"
  17
  18         IFFILE="/root/etc/network/interfaces"
  19
  20         if [ "${STATICIP}" = "frommedia" -a -e  "${IFFILE}" ]
  21         then
  22                 # will use existent /etc/network/interfaces
  23                 log_end_msg
  24                 return
  25         fi
  26
  27 cat > "${IFFILE}" << EOF
  28 auto lo
  29 iface lo inet loopback
  30
  31 EOF
  32
  33         udevadm trigger
  34         udevadm settle
  35
  36         if [ -z "${NETBOOT}" -a -n "${STATICIP}" -a "${STATICIP}" != "frommedia" ]
  37         then
  38                 parsed=$(echo "${STATICIP}" | sed -e 's/,/ /g')
  39
  40                 for ifline in ${parsed}
  41                 do
  42                         ifname="$(echo ${ifline} | cut -f1 -d ':')"
  43                         ifaddress="$(echo ${ifline} | cut -f2 -d ':')"
  44                         ifnetmask="$(echo ${ifline} | cut -f3 -d ':')"
  45                         ifgateway="$(echo ${ifline} | cut -f4 -d ':')"
  46
  47 cat >> "${IFFILE}" << EOF
  48 allow-hotplug ${ifname}
  49 iface ${ifname} inet static
  50     address ${ifaddress}
  51     netmask ${ifnetmask}
  52 EOF
  53
  54                         if [ -n "${ifgateway}" ]
  55                         then
  56
  57 cat >> "${IFFILE}" << EOF
  58     gateway ${ifgateway}
  59
  60 EOF
  61
  62                         fi
  63                 done
  64         else
  65                 if [ -z "${NETBOOT}" ] || [ -n "${DHCP}" ]
  66                 then
  67                         # default, dhcp assigned
  68                         method="dhcp"
  69                 else
  70                         # make sure that the preconfigured interface would not get reassigned by dhcp
  71                         # on startup by ifup script - otherwise our root fs might be disconnected!
  72                         method="manual"
  73                 fi
  74
  75                 # iterate the physical interfaces and add them to the interfaces list and also add when ethdevice= called on cmdline
  76                 if [ "${method}" != dhcp ] || ([ ! -x /root/usr/sbin/NetworkManager ] && [ ! -x /root/usr/sbin/wicd ]) || [ ! -z "${ETHDEVICE}" ]
  77                 then
  78                         for interface in /sys/class/net/eth* /sys/class/net/ath* /sys/class/net/wlan*
  79                         do
  80                                 [ -e ${interface} ] || continue
  81                                 i="$(basename ${interface})"
  82
  83 cat >> "${IFFILE}" << EOF
  84 allow-hotplug ${i}
  85 iface ${i} inet ${method}
  86
  87 EOF
  88
  89                         done
  90                 fi
  91
  92                 if [ ! -f /root/etc/resolv.conf ] || [ -z "$(cat /root/etc/resolv.conf)" ]
  93                 then
  94                         if [ -f /netboot.config ]
  95                         then
  96                                 # create a resolv.conf if it is not present or empty
  97                                 cp /netboot.config /root/var/log/netboot.config
  98
  99                                 rc_search=$(cat netboot.config | awk '/domain/{print $3}')
 100                                 rc_server0=$(cat netboot.config | awk '/dns0/{print $5}')
 101                                 rc_server1=$(cat netboot.config | awk '/dns0/{print $8}')
 102                                 rc_server0="nameserver ${rc_server0}"
 103
 104                                 if [ "${rc_server1}" = "0.0.0.0" ]
 105                                 then
 106                                         rc_server1=""
 107                                 else
 108                                         rc_server1="nameserver ${rc_server1}"
 109                                 fi
 110
 111 cat > /root/etc/resolv.conf << EOF
 112 # /etc/resolv.conf
 113 # Autogenerated by live-boot
 114 search ${rc_search}
 115 domain ${rc_search}
 116 ${rc_server0}
 117 ${rc_server1}
 118 EOF
 119
 120                                 cat /root/etc/resolv.conf >> /root/var/log/netboot.config
 121                         fi
 122                 fi
 123         fi
 124
 125         #if [ ! -x /root/usr/sbin/NetworkManager ]
 126         #then
 127         #       for i in eth0 eth1 eth2 ath0 wlan0
 128         #       do
 129         #               grep -q "iface ${i}" ${IFFILE} && continue
 130         #
 131         #cat >> "${IFFILE}" << EOF
 132         #allow-hotplug ${i}
 133         #iface ${i} inet dhcp
 134         #
 135         #EOF
 136         #
 137         #       done
 138         #fi
 139
 140         log_end_msg
 141 }