components/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                                 if [ -e "${DNSFILE}" ]
  69                                 then
  70                                         grep -v ^nameserver "${DNSFILE}" > "${DNSFILE}.tmp"
  71                                         mv "${DNSFILE}.tmp" "${DNSFILE}"
  72                                 fi
  73
  74                                 echo "nameserver ${nameserver}" >> "${DNSFILE}"
  75                         fi
  76                 done
  77         else
  78                 if [ -z "${NETBOOT}" ] || [ -n "${DHCP}" ]
  79                 then
  80                         # default, dhcp assigned
  81                         method="dhcp"
  82                 else
  83                         # make sure that the preconfigured interface would not get reassigned by dhcp
  84                         # on startup by ifup script - otherwise our root fs might be disconnected!
  85                         method="manual"
  86                 fi
  87
  88                 # iterate the physical interfaces and add them to the interfaces list and also add when ethdevice= called on cmdline
  89                 if [ "${method}" != dhcp ] || ([ ! -x /root/usr/sbin/NetworkManager ] && [ ! -x /root/usr/sbin/wicd ]) || [ ! -z "${ETHDEVICE}" ]
  90                 then
  91                         for interface in /sys/class/net/eth* /sys/class/net/ath* /sys/class/net/wlan*
  92                         do
  93                                 [ -e ${interface} ] || continue
  94                                 i="$(basename ${interface})"
  95
  96 cat >> "${IFFILE}" << EOF
  97 allow-hotplug ${i}
  98 iface ${i} inet ${method}
  99
 100 EOF
 101
 102                         done
 103                 fi
 104
 105                 if [ ! -f /root/etc/resolv.conf ] || [ -z "$(cat /root/etc/resolv.conf)" ]
 106                 then
 107                         if [ -f /netboot.config ]
 108                         then
 109                                 # create a resolv.conf if it is not present or empty
 110                                 cp /netboot.config /root/var/log/netboot.config
 111
 112                                 rc_search=$(cat netboot.config | awk '/domain/ { print $3 }')
 113                                 rc_server0="$(cat netboot.config | awk '/dns0/ { print $5 }')"
 114
 115 cat > /root/etc/resolv.conf << EOF
 116 search ${rc_search}
 117 domain ${rc_search}
 118 nameserver ${rc_server0}
 119 EOF
 120
 121                                 rc_server1=$(cat netboot.config | awk '/dns0/ { print $8 }')
 122
 123                                 if [ "${rc_server1}" ! = "0.0.0.0" ]
 124                                 then
 125                                         echo "nameserver ${rc_server1}" >> /root/etc/resolv.conf
 126                                 fi
 127
 128                                 cat /root/etc/resolv.conf >> /root/var/log/netboot.config
 129                         fi
 130                 fi
 131         fi
 132
 133         log_end_msg
 134 }