debian/patches/15_networking_grml.patch

   1 #! /bin/sh /usr/share/dpatch/dpatch-run
   2 ## 15_networking_grml.dpatch by Christian Hofstaedtler <ch@grml.org>
   3 ## Licensed under GPLv2+.
   4 ##
   5 ## All lines beginning with `## DP:' are a description of the patch.
   6 ## DP: Ship our own networking script, which is compatible with the kernel's
   7 ## DP: notion of ip= as well as resolvconf.
   8
   9 @DPATCH@
  10
  11 diff a/scripts/live-bottom/23networking_grml b/scripts/live-bottom/23networking_grml
  12 Index: b/scripts/live-bottom/23networking_grml
  13 ===================================================================
  14 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
  15 +++ b/scripts/live-bottom/23networking_grml     2011-07-24 22:08:07.000000000 +0200
  16 @@ -0,0 +1,107 @@
  17 +#!/bin/sh
  18 +
  19 +#set -e
  20 +
  21 +# initramfs-tools header
  22 +
  23 +PREREQ=""
  24 +
  25 +prereqs()
  26 +{
  27 +   echo "${PREREQ}"
  28 +}
  29 +
  30 +case "${1}" in
  31 +   prereqs)
  32 +      prereqs
  33 +      exit 0
  34 +   ;;
  35 +esac
  36 +
  37 +. /scripts/live-functions
  38 +
  39 +if [ -n "${NONETWORKING}" ]; then
  40 +   exit 0
  41 +fi
  42 +
  43 +modprobe af_packet # req'd for DHCP
  44 +
  45 +# initialize udev
  46 +# (this /might/ be required for firmware loading to complete)
  47 +if grep -q noudev /proc/cmdline; then
  48 +   log_begin_msg "Networking: Skipping udev as requested via bootoption noudev."
  49 +else
  50 +   udevadm trigger
  51 +   udevadm settle
  52 +fi
  53 +
  54 +if [ -n "${IP}" ]; then
  55 +   # call into initramfs-tools provided network setup functions, so basic
  56 +   # networking is fine.
  57 +   log_begin_msg "Networking: Waiting for basic network to come up..."
  58 +   configure_networking
  59 +fi
  60 +
  61 +# prepare a new /etc/network/interfaces file (and, possibly, a new /etc/resolv.conf)
  62 +IFFILE="/root/etc/network/interfaces"
  63 +RESOLVCONF="/root/etc/resolv.conf"
  64 +
  65 +# config for loopback networking
  66 +cat > $IFFILE << EOF
  67 +# Initially generated on boot by initramfs' 23networking.
  68 +
  69 +auto lo
  70 +iface lo inet loopback
  71 +
  72 +EOF
  73 +
  74 +unset HOSTNAME
  75 +
  76 +# generate config for each present network device
  77 +for interface in /sys/class/net/eth* /sys/class/net/ath* /sys/class/net/wlan*; do
  78 +    [ -e ${interface} ] || continue
  79 +    interface=$(basename ${interface})
  80 +    method="dhcp"
  81 +
  82 +    # NODHCP or a previously run ipconfig mean that ifupdown should never
  83 +    # touch this interface (IP-stack wise).
  84 +    netconfig=/tmp/net-${interface}.conf
  85 +    if [ -n "$NODHCP" ] || [ -e "${netconfig}" ]; then
  86 +        method="manual"
  87 +    fi
  88 +
  89 +    cat >> $IFFILE << EOF
  90 +allow-hotplug ${interface}
  91 +iface ${interface} inet ${method}
  92 +EOF
  93 +
  94 +    # DNS for resolvconf and /etc/resolv.conf
  95 +    if [ -e "${netconfig}" ]; then
  96 +        . "${netconfig}"
  97 +        if [ -n "${DNSDOMAIN}" ]; then
  98 +            echo "    dns-search ${DNSDOMAIN}" >> $IFFILE
  99 +        fi
 100 +        # make sure we don't have any 0.0.0.0 nameservers
 101 +        IPV4DNSLIST=""
 102 +        for IPV4DNS in ${IPV4DNS0} ${IPV4DNS1}; do
 103 +            [ -n "${IPV4DNS}" ] || continue
 104 +            [ "${IPV4DNS}" != "0.0.0.0" ] || continue
 105 +            IPV4DNSLIST="${IPV4DNSLIST}${IPV4DNS} "
 106 +        done
 107 +        if [ -n "${IPV4DNSLIST}" ]; then
 108 +            echo "    dns-nameservers ${IPV4DNSLIST}" >> $IFFILE
 109 +            for IPV4DNS in ${IPV4DNSLIST}; do
 110 +                echo "nameserver ${IPV4DNS}" >> $RESOLVCONF
 111 +            done
 112 +        fi
 113 +    fi
 114 +
 115 +    if [ -z "$NODHCPHOSTNAME" -a -n "$HOSTNAME" ]; then
 116 +        echo $HOSTNAME > /root/etc/hostname
 117 +    fi
 118 +
 119 +    unset DEVICE IPV4ADDR IPV4BROADCAST IPV4NETMASK IPV4GATEWAY IPV4DNS0 IPV4DNS1 HOSTNAME DNSDOMAIN NISDOMAIN ROOTSERVER ROOTPATH filename
 120 +    unset IPV4DNS IPV4DNSLIST
 121 +
 122 +    echo>> $IFFILE
 123 +done