components/9990-netbase.sh

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