NetBSD/sbin/setkey/scriptdump.pl

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#! @LOCALPREFIX@/bin/perl
#
# $NetBSD: scriptdump.pl,v 1.2 2000/07/18 23:32:19 itojun Exp $
#
if ($< != 0) {
print STDERR "must be root to invoke this\n";
exit 1;
}
$mode = 'add';
while ($i = shift @ARGV) {
if ($i eq '-d') {
$mode = 'delete';
} else {
print STDERR "usage: scriptdump [-d]\n";
exit 1;
}
}
open(IN, "setkey -D |") || die;
foreach $_ (<IN>) {
if (/^[^\t]/) {
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($src, $dst) = split(/\s+/, $_);
} elsif (/^\t(esp|ah) mode=(\S+) spi=(\d+).*reqid=(\d+)/) {
($proto, $ipsecmode, $spi, $reqid) = ($1, $2, $3, $4);
} elsif (/^\tE: (\S+) (.*)/) {
$ealgo = $1;
$ekey = $2;
$ekey =~ s/\s//g;
$ekey =~ s/^/0x/g;
} elsif (/^\tA: (\S+) (.*)/) {
$aalgo = $1;
$akey = $2;
$akey =~ s/\s//g;
$akey =~ s/^/0x/g;
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} elsif (/^\treplay=(\d+) flags=(0x\d+) state=/) {
print "$mode $src $dst $proto $spi";
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$replay = $1;
print " -u $reqid" if $reqid;
if ($mode eq 'add') {
print " -m $ipsecmode -r $replay" if $replay;
if ($proto eq 'esp') {
print " -E $ealgo $ekey" if $ealgo;
print " -A $aalgo $akey" if $aalgo;
} elsif ($proto eq 'ah') {
print " -A $aalgo $akey" if $aalgo;
}
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}
print ";\n";
$src = $dst = $upper = $proxy = '';
$ealgo = $ekey = $aalgo = $akey = '';
}
}
close(IN);
exit 0;