diff options
Diffstat (limited to 'lib')
| -rwxr-xr-x | lib/Vyatta/VPN/Util.pm | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/lib/Vyatta/VPN/Util.pm b/lib/Vyatta/VPN/Util.pm index a40cc90..606178a 100755 --- a/lib/Vyatta/VPN/Util.pm +++ b/lib/Vyatta/VPN/Util.pm @@ -27,10 +27,14 @@ use strict; use warnings; our @EXPORT = qw(rsa_get_local_key_file LOCAL_KEY_FILE_DEFAULT rsa_get_local_pubkey - is_vpn_running vpn_debug enableICMP is_tcp_udp get_protocols conv_protocol); + rsa_convert_pubkey_pem is_vpn_running vpn_debug enableICMP is_tcp_udp + get_protocols conv_protocol); use base qw(Exporter); use Vyatta::Config; +use Crypt::OpenSSL::RSA; +use MIME::Base64; +use File::Copy; use POSIX qw(strftime); use constant LOCAL_KEY_FILE_DEFAULT @@ -110,15 +114,57 @@ sub rsa_get_local_pubkey { my @raw_data=<$dat>; close($dat); + # PEM encoded private key + my $rsa = Crypt::OpenSSL::RSA->new_private_key(join("", @raw_data)); + if (defined $rsa) { + my ($n, $e) = $rsa->get_key_parameters(); + my $eb = $e->to_bin(); + return "0s" . encode_base64(pack("C", length($eb)) . $eb . $n->to_bin(), ''); + } + + # legacy private key format foreach my $line (@raw_data) { my $file_pubkey; if (($file_pubkey) = ($line =~ m/\s+\#pubkey=(\S+)/)) { + # Found a legacy private key; convert to PEM for strongSwan 5.2.x + my $key = join("", @raw_data); + $key =~ /^\s+Modulus:\s+0x([0-9a-fA-F]+)$/m; + my $n = Crypt::OpenSSL::Bignum->new_from_hex($1); + $key =~ /^\s+PublicExponent:\s+0x([0-9a-fA-F]+)$/m; + my $e = Crypt::OpenSSL::Bignum->new_from_hex($1); + $key =~ /^\s+PrivateExponent:\s+0x([0-9a-fA-F]+)$/m; + my $d = Crypt::OpenSSL::Bignum->new_from_hex($1); + $key =~ /^\s+Prime1:\s+0x([0-9a-fA-F]+)$/m; + my $p = Crypt::OpenSSL::Bignum->new_from_hex($1); + $key =~ /^\s+Prime2:\s+0x([0-9a-fA-F]+)$/m; + my $q = Crypt::OpenSSL::Bignum->new_from_hex($1); + + my $rsa = Crypt::OpenSSL::RSA->new_key_from_parameters($n, $e, $d, $p, $q); + if (defined $rsa) { + # write out PEM formatted key + move("$file", "$file.bak"); + open(my $priv, '>', "$file") + or return 0; + chmod 0600, $file; + print {$priv} $rsa->get_private_key_string(); + close($priv); + } return $file_pubkey; } } return 0; } +sub rsa_convert_pubkey_pem { + my $key = shift; + my $decoded = decode_base64(substr($key, 2)); + my $len = unpack("C", substr($decoded, 0, 1)); + my $e = Crypt::OpenSSL::Bignum->new_from_bin(substr($decoded, 1, $len)); + my $n = Crypt::OpenSSL::Bignum->new_from_bin(substr($decoded, 1 + $len)); + my $rsa = Crypt::OpenSSL::RSA->new_key_from_parameters($n, $e); + return $rsa->get_public_key_x509_string(); +} + sub vpn_debug { my $timestamp = strftime("%Y%m%d-%H:%M.%S", localtime); |