scripts/boot/9990-netbase.sh

   1 #!/bin/sh
   2
   3 #set -e
   4
   5 Netbase ()
   6 {
   7         if [ -n "${NONETWORKING}" ]
   8         then
   9                 return
  10         fi
  11
  12         # FIXME: stop hardcoding overloading of initramfs-tools functions
  13         . /scripts/functions
  14         . /lib/live/boot/9990-initramfs-tools.sh
  15
  16         log_begin_msg "Preconfiguring networking"
  17
  18         IFFILE="/root/etc/network/interfaces"
  19         DNSFILE="/root/etc/resolv.conf"
  20
  21         if [ "${STATICIP}" = "frommedia" ] && [ -e "${IFFILE}" ]
  22         then
  23                 # will use existent /etc/network/interfaces
  24                 log_end_msg
  25                 return
  26         fi
  27
  28 cat > "${IFFILE}" << EOF
  29 auto lo
  30 iface lo inet loopback
  31
  32 EOF
  33
  34         udevadm trigger
  35         udevadm settle
  36
  37         if [ -z "${NETBOOT}" ] && [ -n "${STATICIP}" ] && [ "${STATICIP}" != "frommedia" ]
  38         then
  39                 parsed=$(echo "${STATICIP}" | sed -e 's|,| |g')
  40
  41                 for ifline in ${parsed}
  42                 do
  43                         ifname="$(echo ${ifline} | cut -f1 -d ':')"
  44                         ifaddress="$(echo ${ifline} | cut -f2 -d ':')"
  45                         ifnetmask="$(echo ${ifline} | cut -f3 -d ':')"
  46                         ifgateway="$(echo ${ifline} | cut -f4 -d ':')"
  47                         nameserver="$(echo ${ifline} | cut -f5 -d ':')"
  48
  49 cat >> "${IFFILE}" << EOF
  50 allow-hotplug ${ifname}
  51 iface ${ifname} inet static
  52     address ${ifaddress}
  53     netmask ${ifnetmask}
  54 EOF
  55
  56                         if [ -n "${ifgateway}" ]
  57                         then
  58
  59 cat >> "${IFFILE}" << EOF
  60     gateway ${ifgateway}
  61
  62 EOF
  63
  64                         fi
  65
  66                         if [ -n "${nameserver}" ]
  67                         then
  68
  69 cat >> "${DNSFILE}" << EOF
  70 nameserver ${nameserver}
  71 EOF
  72
  73                         fi
  74                 done
  75         else
  76                 if [ -z "${NETBOOT}" ] || [ -n "${DHCP}" ]
  77                 then
  78                         # default, dhcp assigned
  79                         method="dhcp"
  80                 else
  81                         # make sure that the preconfigured interface would not get reassigned by dhcp
  82                         # on startup by ifup script - otherwise our root fs might be disconnected!
  83                         method="manual"
  84                 fi
  85
  86                 # iterate the physical interfaces and add them to the interfaces list and also add when ethdevice= called on cmdline
  87                 if [ "${method}" != dhcp ] || ([ ! -x /root/usr/sbin/NetworkManager ] && [ ! -x /root/usr/sbin/wicd ]) || [ ! -z "${ETHDEVICE}" ]
  88                 then
  89                         for interface in /sys/class/net/eth* /sys/class/net/ath* /sys/class/net/wlan*
  90                         do
  91                                 [ -e ${interface} ] || continue
  92                                 i="$(basename ${interface})"
  93
  94 cat >> "${IFFILE}" << EOF
  95 allow-hotplug ${i}
  96 iface ${i} inet ${method}
  97
  98 EOF
  99
 100                         done
 101                 fi
 102
 103                 if [ ! -f /root/etc/resolv.conf ] || [ -z "$(cat /root/etc/resolv.conf)" ]
 104                 then
 105                         if [ -f /netboot.config ]
 106                         then
 107                                 # create a resolv.conf if it is not present or empty
 108                                 cp /netboot.config /root/var/log/netboot.config
 109
 110                                 rc_search=$(cat netboot.config | awk '/domain/{print $3}')
 111                                 rc_server0=$(cat netboot.config | awk '/dns0/{print $5}')
 112                                 rc_server1=$(cat netboot.config | awk '/dns0/{print $8}')
 113                                 rc_server0="nameserver ${rc_server0}"
 114
 115                                 if [ "${rc_server1}" = "0.0.0.0" ]
 116                                 then
 117                                         rc_server1=""
 118                                 else
 119                                         rc_server1="nameserver ${rc_server1}"
 120                                 fi
 121
 122 cat > /root/etc/resolv.conf << EOF
 123 # /etc/resolv.conf
 124 # Autogenerated by live-boot
 125 search ${rc_search}
 126 domain ${rc_search}
 127 ${rc_server0}
 128 ${rc_server1}
 129 EOF
 130
 131                                 cat /root/etc/resolv.conf >> /root/var/log/netboot.config
 132                         fi
 133                 fi
 134         fi
 135
 136         #if [ ! -x /root/usr/sbin/NetworkManager ]
 137         #then
 138         #       for i in eth0 eth1 eth2 ath0 wlan0
 139         #       do
 140         #               grep -q "iface ${i}" ${IFFILE} && continue
 141         #
 142         #cat >> "${IFFILE}" << EOF
 143         #allow-hotplug ${i}
 144         #iface ${i} inet dhcp
 145         #
 146         #EOF
 147         #
 148         #       done
 149         #fi
 150
 151         log_end_msg
 152 }