usr.sbin/setkey/scriptdump

   1 #!/usr/bin/env perl
   2 # $FreeBSD: src/usr.sbin/setkey/scriptdump.pl,v 1.1.2.3 2001/10/24 19:49:16 ume Exp $
   3
   4 if ($< != 0) {
   5         print STDERR "must be root to invoke this\n";
   6         exit 1;
   7 }
   8
   9 $mode = 'add';
  10 while ($i = shift @ARGV) {
  11         if ($i eq '-d') {
  12                 $mode = 'delete';
  13         } else {
  14                 print STDERR "usage: scriptdump [-d]\n";
  15                 exit 1;
  16         }
  17 }
  18
  19 open(IN, "setkey -D |") || die;
  20 foreach $_ (<IN>) {
  21         if (/^[^\t]/) {
  22                 ($src, $dst) = split(/\s+/, $_);
  23         } elsif (/^\t(esp|ah) mode=(\S+) spi=(\d+).*reqid=(\d+)/) {
  24                 ($proto, $ipsecmode, $spi, $reqid) = ($1, $2, $3, $4);
  25         } elsif (/^\tE: (\S+) (.*)/) {
  26                 $ealgo = $1;
  27                 $ekey = $2;
  28                 $ekey =~ s/\s//g;
  29                 $ekey =~ s/^/0x/g;
  30         } elsif (/^\tA: (\S+) (.*)/) {
  31                 $aalgo = $1;
  32                 $akey = $2;
  33                 $akey =~ s/\s//g;
  34                 $akey =~ s/^/0x/g;
  35         } elsif (/^\tseq=(0x\d+) replay=(\d+) flags=(0x\d+) state=/) {
  36                 print "$mode $src $dst $proto $spi";
  37                 $replay = $2;
  38                 print " -u $reqid" if $reqid;
  39                 if ($mode eq 'add') {
  40                         print " -m $ipsecmode -r $replay" if $replay;
  41                         if ($proto eq 'esp') {
  42                                 print " -E $ealgo $ekey" if $ealgo;
  43                                 print " -A $aalgo $akey" if $aalgo;
  44                         } elsif ($proto eq 'ah') {
  45                                 print " -A $aalgo $akey" if $aalgo;
  46                         }
  47                 }
  48                 print ";\n";
  49
  50                 $src = $dst = $upper = $proxy = '';
  51                 $ealgo = $ekey = $aalgo = $akey = '';
  52         }
  53 }
  54 close(IN);
  55
  56 exit 0;