ipsec-tools/setkey/scriptdump.pl

   1 #! @LOCALPREFIX@/bin/perl
   2
   3 if ($< != 0) {
   4         print STDERR "must be root to invoke this\n";
   5         exit 1;
   6 }
   7
   8 $mode = 'add';
   9 while ($i = shift @ARGV) {
  10         if ($i eq '-d') {
  11                 $mode = 'delete';
  12         } else {
  13                 print STDERR "usage: scriptdump [-d]\n";
  14                 exit 1;
  15         }
  16 }
  17
  18 open(IN, "setkey -D |") || die;
  19 foreach $_ (<IN>) {
  20         if (/^[^\t]/) {
  21                 ($src, $dst) = split(/\s+/, $_);
  22         } elsif (/^\t(esp|ah) mode=(\S+) spi=(\d+).*reqid=(\d+)/) {
  23                 ($proto, $ipsecmode, $spi, $reqid) = ($1, $2, $3, $4);
  24         } elsif (/^\tE: (\S+) (.*)/) {
  25                 $ealgo = $1;
  26                 $ekey = $2;
  27                 $ekey =~ s/\s//g;
  28                 $ekey =~ s/^/0x/g;
  29         } elsif (/^\tA: (\S+) (.*)/) {
  30                 $aalgo = $1;
  31                 $akey = $2;
  32                 $akey =~ s/\s//g;
  33                 $akey =~ s/^/0x/g;
  34         } elsif (/^\tseq=(0x\d+) replay=(\d+) flags=(0x\d+) state=/) {
  35                 print "$mode $src $dst $proto $spi";
  36                 $replay = $2;
  37                 print " -u $reqid" if $reqid;
  38                 if ($mode eq 'add') {
  39                         print " -m $ipsecmode -r $replay" if $replay;
  40                         if ($proto eq 'esp') {
  41                                 print " -E $ealgo $ekey" if $ealgo;
  42                                 print " -A $aalgo $akey" if $aalgo;
  43                         } elsif ($proto eq 'ah') {
  44                                 print " -A $aalgo $akey" if $aalgo;
  45                         }
  46                 }
  47                 print ";\n";
  48
  49                 $src = $dst = $upper = $proxy = '';
  50                 $ealgo = $ekey = $aalgo = $akey = '';
  51         }
  52 }
  53 close(IN);
  54
  55 exit 0;