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 --- /dev/null
  13 +++ b/scripts/boot/9990-grml-networking.sh
  14 @@ -0,0 +1,93 @@
  15 +#!/bin/sh
  16 +
  17 +#set -e
  18 +
  19 +Grml_Networking () {
  20 +
  21 +if [ -n "${NONETWORKING}" ]; then
  22 +   return 0
  23 +fi
  24 +
  25 +modprobe af_packet # req'd for DHCP
  26 +
  27 +# initialize udev
  28 +# (this /might/ be required for firmware loading to complete)
  29 +if grep -q noudev /proc/cmdline; then
  30 +   log_begin_msg "Networking: Skipping udev as requested via bootoption noudev."
  31 +else
  32 +   udevadm trigger
  33 +   udevadm settle
  34 +fi
  35 +
  36 +if [ -n "${IP}" ]; then
  37 +   # call into initramfs-tools provided network setup functions, so basic
  38 +   # networking is fine.
  39 +   log_begin_msg "Networking: Waiting for basic network to come up..."
  40 +   configure_networking
  41 +fi
  42 +
  43 +# prepare a new /etc/network/interfaces file (and, possibly, a new /etc/resolv.conf)
  44 +IFFILE="/root/etc/network/interfaces"
  45 +RESOLVCONF="/root/etc/resolv.conf"
  46 +
  47 +# config for loopback networking
  48 +cat > $IFFILE << EOF
  49 +# Initially generated on boot by initramfs' 23networking.
  50 +
  51 +auto lo
  52 +iface lo inet loopback
  53 +
  54 +EOF
  55 +
  56 +unset HOSTNAME
  57 +
  58 +# generate config for each present network device
  59 +for interface in /sys/class/net/eth* /sys/class/net/ath* /sys/class/net/wlan*; do
  60 +    [ -e ${interface} ] || continue
  61 +    interface=$(basename ${interface})
  62 +    method="dhcp"
  63 +
  64 +    # NODHCP or a previously run ipconfig mean that ifupdown should never
  65 +    # touch this interface (IP-stack wise).
  66 +    netconfig=/run/net-${interface}.conf
  67 +    if [ -n "$NODHCP" ] || [ -e "${netconfig}" ]; then
  68 +        method="manual"
  69 +    fi
  70 +
  71 +    cat >> $IFFILE << EOF
  72 +allow-hotplug ${interface}
  73 +iface ${interface} inet ${method}
  74 +EOF
  75 +
  76 +    # DNS for resolvconf and /etc/resolv.conf
  77 +    if [ -e "${netconfig}" ]; then
  78 +        . "${netconfig}"
  79 +        if [ -n "${DNSDOMAIN}" ]; then
  80 +            echo "    dns-search ${DNSDOMAIN}" >> $IFFILE
  81 +        fi
  82 +        # make sure we don't have any 0.0.0.0 nameservers
  83 +        IPV4DNSLIST=""
  84 +        for IPV4DNS in ${IPV4DNS0} ${IPV4DNS1}; do
  85 +            [ -n "${IPV4DNS}" ] || continue
  86 +            [ "${IPV4DNS}" != "0.0.0.0" ] || continue
  87 +            IPV4DNSLIST="${IPV4DNSLIST}${IPV4DNS} "
  88 +        done
  89 +        if [ -n "${IPV4DNSLIST}" ]; then
  90 +            echo "    dns-nameservers ${IPV4DNSLIST}" >> $IFFILE
  91 +            for IPV4DNS in ${IPV4DNSLIST}; do
  92 +                echo "nameserver ${IPV4DNS}" >> $RESOLVCONF
  93 +            done
  94 +        fi
  95 +    fi
  96 +
  97 +    if [ -z "$NODHCPHOSTNAME" -a -n "$HOSTNAME" ]; then
  98 +        echo $HOSTNAME > /root/etc/hostname
  99 +    fi
 100 +
 101 +    unset DEVICE IPV4ADDR IPV4BROADCAST IPV4NETMASK IPV4GATEWAY IPV4DNS0 IPV4DNS1 HOSTNAME DNSDOMAIN NISDOMAIN ROOTSERVER ROOTPATH filename
 102 +    unset IPV4DNS IPV4DNSLIST
 103 +
 104 +    echo>> $IFFILE
 105 +done
 106 +
 107 +}
 108 --- a/scripts/boot/9990-main.sh
 109 +++ b/scripts/boot/9990-main.sh
 110 @@ -197,6 +197,8 @@
 111
 112         Swap
 113
 114 +       Grml_Networking
 115 +
 116         case "${UNIONFS}" in
 117                 unionfs-fuse)
 118                         umount "${rootmnt}/dev"