pl-podcntl

   1 #/bin/sh -
   2 #
   3 # Enable ICMP ping-of-death.  Runs on the target node and sets the
   4 # passed parameters into the kernel.
   5 # Invocation: pl-podcntl HOSTIP HOSTMASK HASH
   6
   7 # -----------------------------------------------------------------
   8 # $Header: /shareddata/CVS/planetlab/admin/ipod/pl-podcntl,v 1.2 2003/01/18 01:43:48 radams Exp $
   9 #
  10 # Copyright (c) 2003 Intel Corporation
  11 # All rights reserved.
  12 # This file is distributed under the terms in the attached INTEL_LICENSE
  13 # file.  If you do not find this file, a copy can be obtained by
  14 # writing to Intel Research Berkeley; Attention: Intel License Inquiry;
  15 # 2150 Shattuck Avenue; Berkeley, CA 94704
  16 # -----------------------------------------------------------------
  17
  18 # Modified from origional EMULAB script.  Origional copyright:
  19 # EMULAB-COPYRIGHT
  20 # Copyright (c) 2000-2002 University of Utah and the Flux Group.
  21 # All rights reserved.
  22 #
  23 # Enable ICMP ping-of-death
  24 # Support both the old style (host only) and the new style (host+mask+key)
  25 #
  26
  27 IPODHOSTP=$1
  28 IPODMASKP=$2
  29 IPODHASHP=$3
  30
  31 SYSCTL="/sbin/sysctl"
  32
  33 # Grotesque sed/awk converts IP addrs into an integer for sysctl
  34 if [ x"$IPODHOSTP" != x ]; then
  35         IPODHOST=`echo $IPODHOSTP | \
  36                 sed -e 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \2 \3 \4/' | \
  37                 awk '{ printf "%d\n", $1*16777216+$2*65536+$3*256+$4 }'`
  38         IPODMASK=`echo $IPODMASKP | \
  39                 sed -e 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \2 \3 \4/' | \
  40                 awk '{ printf "%d\n", $1*16777216+$2*65536+$3*256+$4 }'`
  41         IPODKEY=`echo $IPODHASHP | \
  42                 sed -e 's/\(.*\)/\1/'`
  43
  44         echo "IPODHOST = $IPODHOST"
  45         echo "IPODMASK = $IPODMASK"
  46         echo "IPODKEY = $IPODKEY"
  47
  48         # figure out the version
  49         version=`$SYSCTL net.ipv4.icmp_ipod_version 2>/dev/null`
  50         if [ "$version"x = x ]; then
  51                 $SYSCTL net.ipv4.icmp_ipod_enabled >/dev/null 2>&1
  52                 case $? in
  53                 0)
  54                         version=1
  55                         ;;
  56                 *)
  57                         version=0
  58                         ;;
  59                 esac
  60         fi
  61
  62         echo "Version = $version"
  63         # enable if possible
  64         case $version in
  65         0)
  66                 echo "*** WARNING: no IPOD sysctls, not enabled"
  67                 exit 1
  68                 ;;
  69         1)
  70                 $SYSCTL -w net.ipv4.icmp_ipod_host=$IPODHOST >/dev/null
  71                 $SYSCTL -w net.ipv4.icmp_ipod_enabled=1 >/dev/null
  72                 str="Old-style"
  73                 ;;
  74         *)
  75                 $SYSCTL -w net.ipv4.icmp_ipod_host=$IPODHOST >/dev/null
  76                 Success=$?
  77                 $SYSCTL -w net.ipv4.icmp_ipod_mask=$IPODMASK >/dev/null
  78                 $SYSCTL -w net.ipv4.icmp_ipod_key=$IPODKEY >/dev/null
  79                 $SYSCTL -w net.ipv4.icmp_ipod_enabled=1 >/dev/null
  80                 str="Authenticated"
  81                 ;;
  82         esac
  83         echo Success = $Success
  84         if [[ $Success -eq 0 ]] ; then
  85                 IPODHOST=`echo $IPODINFO | \
  86             sed -e 's/.*HOST=\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\).*/\1/'`
  87                 IPODMASK=`echo $IPODINFO | \
  88             sed -e 's/.*MASK=\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\).*/\1/'`
  89         echo "$str IPOD enabled from $IPODHOST/$IPODMASK"
  90     else
  91         echo "*** WARNING: could not set IPOD info, not enabled"
  92     fi
  93 else
  94         echo "*** WARNING: no IPOD info, not enabled"
  95 fi
  96