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Update rewrite ruls to handled encrypted and signed files

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Add certutils from usecallmanager.nz
Add etc/certs directory
This commit is contained in:
Diederik de Groot
2018-11-25 21:14:09 +01:00
parent 4d8b738e6e
commit efe0307a1d
15 changed files with 2009 additions and 64 deletions
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339
tools/certutils/COPYING Normal file
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@@ -0,0 +1,339 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
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76
tools/certutils/TLV/Builder.pm Normal file
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#!/usr/bin/perl
package TLV::Builder;
use strict;
use parent qw/Exporter/;
use Carp qw/croak/;
our $VERSION = '1.0';
sub new {
my $class = shift;
my $self = {
content => undef,
index => 0
};
return bless ($self, $class);
}
sub next_tag {
my ($self, $tag);
$self = shift;
$tag = shift;
$self->{content} .= pack ('C', $tag);
$self->{index} += 1;
return $self->{tag};
}
sub next_length {
my ($self, $length);
$self = shift;
$length = shift;
croak 'Length is 0' unless ($length);
$self->{content} .= pack ('S>', $length);
$self->{index} += 2;
}
sub next_value {
my ($self, $value);
$self = shift;
$value = shift;
$self->{content} .= $value;
$self->{index} += length $value;
}
sub index {
my $self = shift;
return $self->{index};
}
sub length {
my ($self, $index, $length);
$self = shift;
$index = shift;
$length = shift;
substr ($self->{content}, $index, 2, pack ('S>', $length));
}
sub content {
my $self = shift;
return $self->{content};
}
1;

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#!/usr/bin/perl
package TLV::Parser;
use strict;
use parent qw/Exporter/;
use Carp qw/croak/;
our $VERSION = '1.0';
sub new {
my ($class, $content);
$class = shift;
$content = shift;
croak 'No content' unless (length $content);
my $self = {
content => $content,
content_length => length $content,
index => 0,
tag => undef,
length => 0,
value => undef
};
return bless ($self, $class);
}
sub next_tag {
my $self = shift;
croak 'No space for tag' if ($self->{index} + 1 > $self->{content_length});
$self->{tag} = unpack ('C', substr ($self->{content}, $self->{index}, 1));
$self->{index} += 1;
return $self->{tag};
}
sub next_length {
my $self = shift;
croak 'No space for length' if ($self->{index} + 2 > $self->{content_length});
$self->{length} = unpack ('S>', substr ($self->{content}, $self->{index}, 2));
$self->{index} += 2;
croak 'Length is 0' unless ($self->{length});
return $self->{length};
}
sub next_value {
my $self = shift;
croak 'No space for value' if ($self->{index} + $self->{length} > $self->{content_length});
$self->{value} = substr ($self->{content}, $self->{index}, $self->{length});
$self->{index} += $self->{length};
return $self->{value};
}
sub index {
my $self = shift;
return $self->{index};
}
sub tag {
my $self = shift;
return $self->{tag};
}
sub length {
my $self = shift;
return $self->{length};
}
sub value {
my $self = shift;
return $self->{value};
}
sub content {
my $self = shift;
return $self->{content};
}
sub done {
my $self = shift;
return $self->{index} == $self->{content_length};
}
1;

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tools/certutils/TLV/Tags.pm Normal file
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#!/usr/bin/perl
package TLV::Tags;
use strict;
use parent qw/Exporter/;
our $VERSION = '1.0';
our %EXPORT_TAGS = (header => [qw/HEADER_VERSION HEADER_LENGTH HEADER_SIGNER_ID HEADER_SIGNER_NAME HEADER_SERIAL_NUMBER
HEADER_CA_NAME HEADER_SIGNATURE_INFO HEADER_DIGEST_ALGORITHM
HEADER_SIGNATURE_ALGORITHM_INFO HEADER_SIGNATURE_ALGORITHM HEADER_SIGNATURE_MODULUS
HEADER_SIGNATURE HEADER_PADDING HEADER_FILENAME HEADER_TIMESTAMP/],
record => [qw/RECORD_LENGTH RECORD_DNS_NAME RECORD_SUBJECT_NAME RECORD_FUNCTION RECORD_ISSUER_NAME
RECORD_SERIAL_NUMBER RECORD_PUBLIC_KEY RECORD_SIGNATURE RECORD_CERTIFICATE
RECORD_IP_ADDRESS RECORD_CERTIFICATE_HASH RECORD_HASH_ALGORITHM/],
digest => [qw/DIGEST_SHA1 DIGEST_SHA256 DIGEST_SHA384 DIGEST_SHA512/],
function => [qw/FUNCTION_SAST FUNCTION_CCM FUNCTION_CCM_TFTP FUNCTION_TFTP FUNCTION_CAPF FUNCTION_SRST
FUNCTION_HTTPS FUNCTION_TVS/]);
our @EXPORT_OK = (@{$EXPORT_TAGS{header}}, @{$EXPORT_TAGS{record}}, @{$EXPORT_TAGS{digest}}, @{$EXPORT_TAGS{function}});
use constant {
HEADER_VERSION => 1,
HEADER_LENGTH => 2,
HEADER_SIGNER_ID => 3,
HEADER_SIGNER_NAME => 4,
HEADER_SERIAL_NUMBER => 5,
HEADER_CA_NAME => 6,
HEADER_SIGNATURE_INFO => 7,
HEADER_DIGEST_ALGORITHM => 8,
HEADER_SIGNATURE_ALGORITHM_INFO => 9,
HEADER_SIGNATURE_ALGORITHM => 10,
HEADER_SIGNATURE_MODULUS => 11,
HEADER_SIGNATURE => 12,
HEADER_PADDING => 13,
HEADER_FILENAME => 14,
HEADER_TIMESTAMP => 15
};
use constant {
RECORD_LENGTH => 1,
RECORD_DNS_NAME => 2,
RECORD_SUBJECT_NAME => 3,
RECORD_FUNCTION => 4,
RECORD_ISSUER_NAME => 5,
RECORD_SERIAL_NUMBER => 6,
RECORD_PUBLIC_KEY => 7,
RECORD_SIGNATURE => 8,
RECORD_CERTIFICATE => 9,
RECORD_IP_ADDRESS => 10,
RECORD_CERTIFICATE_HASH => 11,
RECORD_HASH_ALGORITHM => 12
};
use constant {
DIGEST_SHA1 => 1,
DIGEST_SHA256 => 2,
DIGEST_SHA384 => 3,
DIGEST_SHA512 => 4
};
use constant {
FUNCTION_SAST => 0,
FUNCTION_CCM => 1,
FUNCTION_CCM_TFTP => 2,
FUNCTION_TFTP => 3,
FUNCTION_CAPF => 4,
FUNCTION_SRST => 5,
FUNCTION_HTTPS => 7,
FUNCTION_TVS => 21
};
1;

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#!/usr/bin/perl
#
# Copyright (c) 2017 Gareth Palmer <gareth.palmer3@gmail.com>
# This program is free software, distributed under the terms of
# the GNU General Public License Version 2.
use strict;
use POSIX qw/EXIT_FAILURE EXIT_SUCCESS/;
use English qw/-no_match_vars/;
use IO::File;
use Crypt::OpenSSL::X509 qw/FORMAT_ASN1 FORMAT_PEM/;
use Digest;
eval {
my $certificate_file = shift;
die 'No certificate file specified' unless (length $certificate_file);
my ($file, $content);
unless ($file = IO::File->new ($certificate_file, '<:raw')) {
die 'Unable to read ' . $certificate_file . ': ' . $OS_ERROR;
}
$content = do {local $INPUT_RECORD_SEPARATOR; $file->getline};
$file->close;
my $x509 = Crypt::OpenSSL::X509->new_from_string ($content, FORMAT_PEM);
die 'Unable to load record x509 certificate' unless ($x509);
my $digest = Digest->new ('SHA-1');
$digest->add ($x509->as_string (FORMAT_ASN1));
print $digest->b64digest, "\n";
};
if (length $EVAL_ERROR) {
$EVAL_ERROR =~ s/ at \S+ line \d+\.//;
warn $EVAL_ERROR;
exit EXIT_FAILURE;
}
exit EXIT_SUCCESS;

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tools/certutils/gencert Executable file
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#!/bin/bash
#
# Copyright (c) 2017 Gareth Palmer <gareth.palmer3@gmail.com>
# This program is free software, distributed under the terms of
# the GNU General Public License Version 2.
OPTIONS=$(getopt -n ${0##*/} -o "C:O:l:s:t:e:b:y:d:o:c:nh" \
-l "common:,organization:,locality:,state:,country:,email:,bits:,years:,digest:,output:,cacert:,newca,help" -- "$@")
if test $? -ne 0; then
echo "Try \`${0##*/} --help' for more information"
exit 1
fi
eval set -- "$OPTIONS"
COMMON_NAME="" ORGANIZATION="" LOCALITY="" STATE="" COUNTRY="" EMAIL_ADDRESS="" BITS="2048" YEARS="10" DIGEST="sha256" CA_CERT="" OUTPUT_FILE="" NEW_CA=false
while true; do
test -n "$1" || break
case "$1" in
-C|--common)
COMMON_NAME="$2"
shift 2
;;
-O|--organization)
ORGANIZATION="$2"
shift 2
;;
-l|--locality)
LOCALITY="$2"
shift 2
;;
-s|--state)
STATE="$2"
shift 2
;;
-t|--country)
COUNTRY="$2"
shift 2
;;
-e|--email)
EMAIL_ADDRESS="$2"
shift 2
;;
-b|--bits)
BITS="$2"
shift 2
if [[ ! $BITS =~ ^[0-9]+$ || $BITS -lt 512 || $BITS -gt 4096 ]]; then
echo "Invalid --bits \`$BITS'"
exit 1
fi
;;
-y|--years)
YEARS="$2"
shift 2
if [[ ! $YEARS =~ ^[0-9]+$ || $YEARS -lt 1 ]]; then
echo "Invalid --years \`$YEARS'"
exit 1
fi
;;
-d|--digest)
DIGEST="${2,,[a-z]}"
shift 2
if [[ $DIGEST != +(sha1|sha256) ]]; then
echo "Invaid --digest \`$DIGEST'"
exit 1
fi
;;
-o|--output)
OUTPUT_FILE="$2"
shift 2
;;
-c|--cacert)
CA_CERT="$2"
shift 2
if ! test -f "$CA_CERT"; then
echo "CA certificate does not exist"
exit 1
fi
;;
-n|--newca)
NEW_CA=true
shift 1
;;
-h|--help)
echo "Usage: ${0##*/} [OPTIONS]"
echo "Generate and sign X509 certificates"
echo ""
echo " -C --common <name> common name"
echo " -O --organization <name> organization"
echo " -l --locality <name> locality"
echo " -s --state <name> state"
echo " -t --country <name> country"
echo " -e --email <address> email address"
echo " -n --bits <size> RSA key size (default 2048)"
echo " -y --years <number> number of years to sign the certificate (default 10)"
echo " -d --digest <name> message digest to use (sha1, sha256)"
echo " -o --output output file"
echo " -c --cacert CA certificate to use for signing"
echo " -n --newca generate a CA certificate instead"
echo " -h --help print this help and exit"
echo ""
exit 0
;;
--)
shift 1
break
;;
esac
done
if test -z "$COMMON_NAME"; then
echo "No common name specified"
exit 1
fi
SUBJECT="/commonName=$COMMON_NAME"
if test -n "$ORGANIZATION"; then
SUBJECT+="/organizationName=$ORGANIZATION"
fi
if test -n "$LOCALITY"; then
SUBJECT+="/localityName=$LOCALITY"
fi
if test -n "$STATE"; then
SUBJECT+="/stateOrProvinceName=$STATE"
fi
if test -n "$COUNTRY"; then
SUBJECT+="/countryName=$COUNTRY"
fi
if test -n "$EMAIL_ADDRESS"; then
SUBJECT+="/emailAddress=$EMAIL_ADDRESS"
fi
if test -z "$OUTPUT_FILE"; then
OUTPUT_FILE=$(echo "$COMMON_NAME" | sed -e "s/[^A-Za-z0-9\.\-]/_/g").pem
fi
START_DATE=$(date +"%Y%m%d000000Z")
END_DATE=$(date -d "now + $YEARS years" +"%Y%m%d000000Z")
TEMP_DIR=$(mktemp -d /tmp/gencert-XXXXXXXX)
test -n $TEMP_DIR || exit 1
trap "rm -rf $TEMP_DIR" EXIT
touch $TEMP_DIR/database.txt $TEMP_DIR/database.txt.attr
SERIAL_NUMBER=$(hexdump -n 16 -v -e "1/1 \"%02X\"" /dev/urandom)
echo "$SERIAL_NUMBER" > $TEMP_DIR/serial.txt
cat > $TEMP_DIR/openssl.cnf <<EOF
RANDFILE = $TEMP_DIR/.random
[ca]
default_ca = ca_default
[ca_default]
new_certs_dir = $TEMP_DIR
database = $TEMP_DIR/database.txt
serial = $TEMP_DIR/serial.txt
copy_extensons = none
email_in_dn = yes
x509_extensions = ca_extensions
preserve = no
unique_subject = no
policy = policy_default
[ca_extensions]
basicConstraints = CA:false
subjectKeyIdentifier = hash
keyUsage = Digital Signature, Key Encipherment, Data Encipherment
extendedKeyUsage = TLS Web Server Authentication, TLS Web Client Authentication
[policy_default]
commonName = supplied
organizationName = optional
localityName = optional
stateOrProvinceName = optional
countryName = optional
emailAddress = optional
[req]
req_extensions = req_extensions
distinguished_name = policy_default
[req_extensions]
basicConstraints = CA:true
subjectKeyIdentifier = hash
keyUsage = Digital Signature, Key Encipherment, Data Encipherment, Certificate Sign
extendedKeyUsage = TLS Web Server Authentication, TLS Web Client Authentication
EOF
if ! openssl genrsa -out $TEMP_DIR/key.pem $BITS 2> /dev/null; then
echo "Error while generating RSA key"
exit 1
fi
if ! openssl req -config $TEMP_DIR/openssl.cnf -new -batch -$DIGEST -key $TEMP_DIR/key.pem -subj "$SUBJECT" \
-out $TEMP_DIR/req.pem 2> /dev/null; then
echo "Error while creating signing request"
exit 1
fi
if $NEW_CA; then
if ! openssl ca -config $TEMP_DIR/openssl.cnf -selfsign -batch -startdate $START_DATE -enddate $END_DATE -md $DIGEST \
-extensions req_extensions -keyfile $TEMP_DIR/key.pem -notext -in $TEMP_DIR/req.pem -out $TEMP_DIR/crt.pem 2> /dev/null; then
echo "Error while signing CA certificate"
exit 1
fi
cat $TEMP_DIR/key.pem $TEMP_DIR/crt.pem > $OUTPUT_FILE
echo "New CA certificate created. Certificate and private-key saved in $OUTPUT_FILE"
else
if test -z "$CA_CERT"; then
echo "No CA certificate specified"
exit 1
fi
if ! openssl ca -config $TEMP_DIR/openssl.cnf -batch -startdate $START_DATE -enddate $END_DATE -md $DIGEST -extensions ca_extensions \
-keyfile $CA_CERT -cert $CA_CERT -notext -in $TEMP_DIR/req.pem -out $TEMP_DIR/crt.pem 2>/dev/null; then
echo "Error while signing certificate"
exit 1
fi
cat $TEMP_DIR/key.pem $TEMP_DIR/crt.pem > $OUTPUT_FILE
echo "New certificate signed by the CA. Certificate and private-key saved to $OUTPUT_FILE"
fi
exit 0

384
tools/certutils/sgnfile Executable file
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@@ -0,0 +1,384 @@
#!/usr/bin/perl
#
# Copyright (c) 2017 Gareth Palmer <gareth.palmer3@gmail.com>
# This program is free software, distributed under the terms of
# the GNU General Public License Version 2.
use strict;
use FindBin;
use lib $FindBin::RealBin;
use POSIX qw/EXIT_FAILURE EXIT_SUCCESS strftime/;
use English qw/-no_match_vars/;
use IO::File;
use Crypt::OpenSSL::RSA;
use Crypt::OpenSSL::X509 qw/FORMAT_ASN1 FORMAT_PEM/;
use Convert::ASN1;
use Math::BigInt;
use File::Basename qw/basename/;
use Getopt::Long qw//;
use TLV::Tags qw/:header :digest/;
use TLV::Parser;
use TLV::Builder;
sub parse_sgn {
my ($sgn_file, $certificate_file);
$sgn_file = shift;
$certificate_file = shift;
my ($file, $content);
unless ($file = IO::File->new ($certificate_file, '<:raw')) {
die 'Unable to read ' . $certificate_file . ': ' . $OS_ERROR;
}
$content = do {local $INPUT_RECORD_SEPARATOR; $file->getline};
$file->close;
my $x509 = Crypt::OpenSSL::X509->new_from_string ($content, FORMAT_PEM);
die 'Unable to load certificate' unless ($x509);
unless ($file = IO::File->new ($sgn_file, '<:raw')) {
die 'Unable to read ' . $sgn_file . ': ' . $OS_ERROR;
}
$content = do {local $INPUT_RECORD_SEPARATOR; $file->getline};
$file->close;
my $parser = TLV::Parser->new ($content);
# Header
die 'Not a version tag: ' . $parser->tag if ($parser->next_tag != HEADER_VERSION);
die 'Wrong version length: ' . $parser->length if ($parser->next_length != 2);
my $version = join ('.', unpack ('CC', $parser->next_value));
die 'Not a header_length tag: ' . $parser->tag if ($parser->next_tag != HEADER_LENGTH);
die 'Wrong header_length length: ' . $parser->length if ($parser->next_length != 2);
my $header_length = unpack ('S>', $parser->next_value);
print 'Version: ', $version, "\n",
'Header Length: ', $header_length, ' bytes', "\n";
my ($header_digest_algorithm, $header_signature_index, $header_signature_length);
while ($parser->index < $header_length) {
$parser->next_tag;
next if ($parser->tag == HEADER_PADDING);
$parser->next_length;
if ($parser->tag == HEADER_SIGNER_ID) {
my $signer_id = $parser->length;
print 'Signer ID: ', $signer_id, "\n";
} elsif ($parser->tag == HEADER_SIGNER_NAME) {
my $signer_name = unpack ('Z*', $parser->next_value);
print 'Signer Name: ', $signer_name, "\n";
} elsif ($parser->tag == HEADER_SERIAL_NUMBER) {
my $serial_number = uc unpack ('H*', $parser->next_value);
print 'Serial Number: ', join (':', $serial_number =~ m/(..)/g), "\n";
} elsif ($parser->tag == HEADER_CA_NAME) {
my $ca_name = unpack ('Z*', $parser->next_value);
print 'CA Name: ', $ca_name, "\n";
} elsif ($parser->tag == HEADER_SIGNATURE_INFO) {
my $signature_info = $parser->length;
print 'Signature Info: ', $signature_info, "\n";
} elsif ($parser->tag == HEADER_DIGEST_ALGORITHM) {
die 'Invalid digest_algorithm length: ' . $parser->length if ($parser->length != 1);
my $digest_algorithm = unpack ('C', $parser->next_value);
$header_digest_algorithm = $digest_algorithm;
print 'Digest Algorithm: ';
if ($digest_algorithm == DIGEST_SHA1) {
print 'SHA1';
} elsif ($digest_algorithm == DIGEST_SHA256) {
print 'SHA256';
}
print "\n";
} elsif ($parser->tag == HEADER_SIGNATURE_ALGORITHM_INFO) {
my $signature_algorithm_info = $parser->length;
print 'Signature Algorithm Info: ', $signature_algorithm_info, "\n";
} elsif ($parser->tag == HEADER_SIGNATURE_ALGORITHM) {
die 'Invalid signature_algorithm length: ' . $parser->length if ($parser->length != 1);
my $signature_algorithm = unpack ('C', $parser->next_value);
print 'Signature Algorithm: ', $signature_algorithm, "\n";
} elsif ($parser->tag == HEADER_SIGNATURE_MODULUS) {
die 'Invalid signature_modulus length: ' . $parser->length if ($parser->length != 1);
my $signature_modulus = unpack ('C', $parser->next_value);
print 'Signature Modulus: ', $signature_modulus, "\n";
} elsif ($parser->tag == HEADER_SIGNATURE) {
my $signature = $parser->next_value;
# The removal index for the signature
$header_signature_index = $parser->index - $parser->length - 3;
$header_signature_length = $parser->length + 3;
print 'Signature: ', length ($signature), ' bytes', "\n";
} elsif ($parser->tag == HEADER_FILENAME) {
my $filename = unpack ('Z*', $parser->next_value);
print 'Filename: ', $filename, "\n";
} elsif ($parser->tag == HEADER_TIMESTAMP) {
die 'Invalid timestamp length: ' . $parser->length if ($parser->length != 4);
my $timestamp = unpack ('L>', $parser->next_value);
print 'Timestamp: ', strftime ('%a, %d %b %Y %H:%M:%S %z', localtime $timestamp), "\n";
} else {
die 'Unknown tag: ' . $parser->tag . ' at index: ' . ($parser->index - 3);
}
}
print "\n";
die 'No header digest algorithm' unless ($header_digest_algorithm);
die 'No header signature' unless ($header_signature_index);
my $rsa = Crypt::OpenSSL::RSA->new_public_key ($x509->pubkey);
die 'Unable to parse RSA public key' unless ($rsa);
if ($header_digest_algorithm == DIGEST_SHA1) {
$rsa->use_sha1_hash;
} elsif ($header_digest_algorithm == DIGEST_SHA256) {
$rsa->use_sha256_hash;
} else {
die 'Unknown header_digest_algorithm: ' . $header_digest_algorithm;
}
$content = $parser->content;
my $signature = substr ($content, $header_signature_index + 3, $header_signature_length - 3);
# Remove the signature block
substr ($content, $header_signature_index, $header_signature_length, '');
if ($rsa->verify ($content, $signature)) {
print 'Valid signature', "\n";
} else {
print 'Invalid signature', "\n";
}
}
sub build_sgn {
my ($content_file, $certificate_file, $digest_algorithm, $filename);
$content_file = shift;
$certificate_file = shift;
$digest_algorithm = shift;
$filename = shift;
my ($file, $content);
unless ($file = IO::File->new ($certificate_file, '<:raw')) {
die 'Unable to read ' . $certificate_file . ': ' . $OS_ERROR;
}
$content = do {local $INPUT_RECORD_SEPARATOR; $file->getline};
$file->close;
my $x509 = Crypt::OpenSSL::X509->new_from_string ($content, FORMAT_PEM);
die 'Unable to load header certificate' unless ($x509);
my $rsa = Crypt::OpenSSL::RSA->new_private_key ($content);
die 'Unable to load header private key' unless ($rsa);
if ($digest_algorithm eq 'SHA1') {
$rsa->use_sha1_hash;
} elsif ($digest_algorithm eq 'SHA256') {
$rsa->use_sha256_hash;
} else {
die 'Unknown digest_algorithm: ' . $digest_algorithm;
}
my $builder = TLV::Builder->new;
my $header_signature_index;
do {
# Header
$builder->next_tag (HEADER_VERSION);
$builder->next_length (2);
$builder->next_value (pack ('CC', 1, 2));
$builder->next_tag (HEADER_LENGTH);
$builder->next_length (2);
$builder->next_value (pack ('S>', 0));
(my $signer_name = $x509->subject) =~ s/, /;/g;
(my $ca_name = $x509->issuer) =~ s/, /;/g;
my $serial_number = pack ('H*', $x509->serial);
# Combined TLV length for signer_name, serial_number and ca_name
my $signer_id = 3 + length ($signer_name) + 1 + 3 + length ($serial_number) + 3 + length ($ca_name) + 1;
$builder->next_tag (HEADER_SIGNER_ID);
$builder->next_length ($signer_id);
$builder->next_tag (HEADER_SIGNER_NAME);
$builder->next_length (length ($signer_name) + 1);
$builder->next_value (pack ('Z*', $signer_name));
$builder->next_tag (HEADER_SERIAL_NUMBER);
$builder->next_length (length $serial_number);
$builder->next_value ($serial_number);
$builder->next_tag (HEADER_CA_NAME);
$builder->next_length (length ($ca_name) + 1);
$builder->next_value (pack ('Z*', $ca_name));
$builder->next_tag (HEADER_SIGNATURE_INFO);
$builder->next_length (15); # Unknown
$builder->next_tag (HEADER_DIGEST_ALGORITHM);
$builder->next_length (1);
$builder->next_value (pack ('C', do {
if ($digest_algorithm eq 'SHA1') {
DIGEST_SHA1;
} elsif ($digest_algorithm eq 'SHA256') {
DIGEST_SHA256;
} else {
die 'Unknown digest algorithm: ' . $digest_algorithm;
}
}));
$builder->next_tag (HEADER_SIGNATURE_ALGORITHM_INFO);
$builder->next_length (8); # Unknown
$builder->next_tag (HEADER_SIGNATURE_ALGORITHM);
$builder->next_length (1);
$builder->next_value (pack ('C', 0)); # Unknown
my $signature_modulus;
if ($rsa->size == 64) {
$signature_modulus = 0;
} elsif ($rsa->size == 128) {
$signature_modulus = 1;
} elsif ($rsa->size == 256) {
$signature_modulus = 2;
} elsif ($rsa->size == 512) {
$signature_modulus = 3;
} else {
die 'Unsupported RSA key size: ' . $rsa->size;
}
$builder->next_tag (HEADER_SIGNATURE_MODULUS);
$builder->next_length (1);
$builder->next_value (pack ('C', $signature_modulus));
# The insertion index of the signature
$header_signature_index = $builder->index;
$builder->next_tag (HEADER_FILENAME);
$builder->next_length (length ($filename) + 1);
$builder->next_value (pack ('Z*', $filename));
$builder->next_tag (HEADER_TIMESTAMP);
$builder->next_length (4);
$builder->next_value (pack ('L>', time));
# Header must be padded to 32-bit boundary
while (($builder->index + 3 + $rsa->size) % 4) {
$builder->next_tag (HEADER_PADDING);
}
# Signed content includes the length of the signature block
$builder->length (8, $builder->index + 3 + $rsa->size);
};
unless ($file = IO::File->new ($content_file, '<:raw')) {
die 'Unable to read ' . $content_file . ': ' . $OS_ERROR;
}
$content = do {local $INPUT_RECORD_SEPARATOR; $file->getline};
$file->close;
$builder->next_value ($content);
$content = $builder->content;
die 'Unable to sign content' unless (my $signature = $rsa->sign ($content));
# Insert signature into content
substr ($content, $header_signature_index, 0, pack ('CS>a*', HEADER_SIGNATURE, $rsa->size, $signature));
my $sgn_file = $content_file . '.sgn';
unless ($file = IO::File->new ($sgn_file, '>:raw')) {
die 'Unable to write ' . $sgn_file . ': ' . $OS_ERROR;
}
$file->print ($content);
$file->close;
print 'Built ', $sgn_file, "\n";
}
eval {
my ($mode, $content_file, $sgn_file, $certificate_file, $digest_algorithm, $filename, $show_help);
my $getopt = Getopt::Long::Parser->new;
$getopt->configure (qw/no_ignore_case/);
unless ($getopt->getoptions ('p|parse' => sub {shift; $mode = 'parse'},
'b|build' => sub {shift; $mode = 'build'},
'c|certificate=s' => sub {shift; $certificate_file = shift},
'd|digest=s' => sub {shift; $digest_algorithm = uc shift},
'F|filename=s' => sub {shift; $filename = shift},
'h|help' => sub {shift; $show_help = shift})) {
die 'Error parsing options';
}
if ($show_help) {
print 'Usage: ', basename ($PROGRAM_NAME), ' <FILE> [OPTIONS]', "\n",
'Parse or build a .sgn file', "\n",
"\n",
' -p --parse parse a .sgn file', "\n",
' -b --build build a .sgn file', "\n",
' -c --certificate <file> certificate to use for verifying or signing', "\n",
' -d --digest <name> signature digest (sha1, sha256)', "\n",
' -F --filename <name> header filename in built .sgn file (optional)', "\n",
' -h --help print this help and exit', "\n",
"\n";
return;
}
die 'No verifying/signing certificate file specified' unless (length $certificate_file);
if ($mode eq 'parse') {
die 'No .sgn file specified' unless (length ($sgn_file = shift));
parse_sgn ($sgn_file, $certificate_file);
} elsif ($mode eq 'build') {
die 'No file specified' unless (length ($content_file = shift));
$digest_algorithm = 'SHA1' unless (length $digest_algorithm);
$filename = basename ($content_file) . '.sgn' unless (length $filename);
build_sgn ($content_file, $certificate_file, $digest_algorithm, $filename);
} else {
die 'No mode specified';
}
};
if (length $EVAL_ERROR) {
$EVAL_ERROR =~ s/ at \S+ line \d+\.//;
warn $EVAL_ERROR;
exit EXIT_FAILURE;
}
exit EXIT_SUCCESS;

73
tools/certutils/stripsgn Executable file
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@@ -0,0 +1,73 @@
#!/usr/bin/perl
#
# Copyright (c) 2017 Gareth Palmer <gareth.palmer3@gmail.com>
# This program is free software, distributed under the terms of
# the GNU General Public License Version 2.
use strict;
use POSIX qw/EXIT_FAILURE EXIT_SUCCESS/;
use English qw/-no_match_vars/;
use IO::File qw/SEEK_SET/;
eval {
my $sgn_file = shift;
die 'No .sgn file specified' unless (length $sgn_file);
(my $content_file = $sgn_file) =~ s/\.sgn$//;
my $input_file;
unless ($input_file = IO::File->new ($sgn_file, '<:raw')) {
die 'Unable to read ' .$sgn_file . ' :' . $OS_ERROR;
}
my $content;
die 'Unable to read header: ' . $OS_ERROR if ($input_file->read ($content, 10) != 10);
my ($tag, $length, $index);
$index = 0;
($tag, $length) = unpack ('CS>', substr ($content, $index, 3));
$index += 3;
die 'Not a version tag: ' . $tag if ($tag != 1);
die 'Wrong version length: ' . $length if ($length != 2);
my $version = join ('.', unpack ('CC', substr ($content, $index, $length)));
$index += $length;
($tag, $length) = unpack ('CS>', substr ($content, $index, 3));
$index += 3;
die 'Not a header_length tag: ' . $tag if ($tag != 2);
die 'Wrong header_length length: ' . $length if ($length != 2);
my $header_length = unpack ('S>', substr ($content, $index, $length));
$index += $length;
die 'Unable to seek: ' . $OS_ERROR unless ($input_file->seek ($header_length, SEEK_SET));
my $output_file;
unless ($output_file = IO::File->new ($content_file, '>:raw')) {
die 'Unable to write ' . $content_file . ': ' . $OS_ERROR;
}
while ($input_file->read ($content, 4096)) {
$output_file->write ($content);
}
$input_file->close;
$output_file->close;
};
if (length $EVAL_ERROR) {
$EVAL_ERROR =~ s/ at \S+ line \d+\.//;
warn $EVAL_ERROR;
exit EXIT_FAILURE;
}
exit EXIT_SUCCESS;

570
tools/certutils/tlvfile Executable file
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@@ -0,0 +1,570 @@
#!/usr/bin/perl
#
# Copyright (c) 2017 Gareth Palmer <gareth.palmer3@gmail.com>
# This program is free software, distributed under the terms of
# the GNU General Public License Version 2.
use strict;
use FindBin;
use lib $FindBin::RealBin;
use POSIX qw/EXIT_FAILURE EXIT_SUCCESS strftime/;
use English qw/-no_match_vars/;
use IO::File;
use Crypt::OpenSSL::RSA;
use Crypt::OpenSSL::X509 qw/FORMAT_ASN1 FORMAT_PEM/;
use Convert::ASN1;
use Math::BigInt;
use File::Basename qw/basename/;
use Getopt::Long qw//;
use TLV::Tags qw/:header :digest :record :function/;
use TLV::Parser;
use TLV::Builder;
sub parse_tlv {
my $tlv_file = shift;
my ($file, $content);
unless ($file = IO::File->new ($tlv_file, '<:raw')) {
die 'Unable to read ' . $tlv_file . ': ' . $OS_ERROR;
}
$content = do {local $INPUT_RECORD_SEPARATOR; $file->getline};
$file->close;
my $parser = TLV::Parser->new ($content);
# Header
die 'Not a version tag: ' . $parser->tag if ($parser->next_tag != HEADER_VERSION);
die 'Wrong version length: ' . $parser->length if ($parser->next_length != 2);
my $version = join ('.', unpack ('CC', $parser->next_value));
die 'Not a header_length tag: ' . $parser->tag if ($parser->next_tag != HEADER_LENGTH);
die 'Wrong header_length length: ' . $parser->length if ($parser->next_length != 2);
my $header_length = unpack ('S>', $parser->next_value);
print 'Version: ', $version, "\n",
'Header Length: ', $header_length, ' bytes', "\n";
my ($header_serial_number, $header_digest_algorithm, $header_signature_index, $header_signature_length);
while ($parser->index < $header_length) {
$parser->next_tag;
next if ($parser->tag == HEADER_PADDING);
$parser->next_length;
if ($parser->tag == HEADER_SIGNER_ID) {
my $signer_id = $parser->length;
print 'Signer ID: ', $signer_id, "\n";
} elsif ($parser->tag == HEADER_SIGNER_NAME) {
my $signer_name = unpack ('Z*', $parser->next_value);
print 'Signer Name: ', $signer_name, "\n";
} elsif ($parser->tag == HEADER_SERIAL_NUMBER) {
my $serial_number = uc unpack ('H*', $parser->next_value);
# Used to locate the signing certificate record
$header_serial_number = $serial_number;
print 'Serial Number: ', join (':', $serial_number =~ m/(..)/g), "\n";
} elsif ($parser->tag == HEADER_CA_NAME) {
my $ca_name = unpack ('Z*', $parser->next_value);
print 'CA Name: ', $ca_name, "\n";
} elsif ($parser->tag == HEADER_SIGNATURE_INFO) {
my $signature_info = $parser->length;
print 'Signature Info: ', $signature_info, "\n";
} elsif ($parser->tag == HEADER_DIGEST_ALGORITHM) {
die 'Invalid digest_algorithm length: ' . $parser->length if ($parser->length != 1);
my $digest_algorithm = unpack ('C', $parser->next_value);
$header_digest_algorithm = $digest_algorithm;
print 'Digest Algorithm: ';
if ($digest_algorithm == DIGEST_SHA1) {
print 'SHA1';
} elsif ($digest_algorithm == DIGEST_SHA256) {
print 'SHA256';
}
print "\n";
} elsif ($parser->tag == HEADER_SIGNATURE_ALGORITHM_INFO) {
my $signature_algorithm_info = $parser->length;
print 'Signature Algorithm Info: ', $signature_algorithm_info, "\n";
} elsif ($parser->tag == HEADER_SIGNATURE_ALGORITHM) {
die 'Invalid signature_algorithm length: ' . $parser->length if ($parser->length != 1);
my $signature_algorithm = unpack ('C', $parser->next_value);
print 'Signature Algorithm: ', $signature_algorithm, "\n";
} elsif ($parser->tag == HEADER_SIGNATURE_MODULUS) {
die 'Invalid signature_modulus length: ' . $parser->length if ($parser->length != 1);
my $signature_modulus = unpack ('C', $parser->next_value);
print 'Signature Modulus: ', $signature_modulus, "\n";
} elsif ($parser->tag == HEADER_SIGNATURE) {
my $signature = $parser->next_value;
# The removal index for the signature
$header_signature_index = $parser->index - $parser->length - 3;
$header_signature_length = $parser->length + 3;
print 'Signature: ', length ($signature), ' bytes', "\n";
} elsif ($parser->tag == HEADER_FILENAME) {
my $filename = unpack ('Z*', $parser->next_value);
print 'Filename: ', $filename, "\n";
} elsif ($parser->tag == HEADER_TIMESTAMP) {
die 'Invalid timestamp length: ' . $parser->length if ($parser->length != 4);
my $timestamp = unpack ('L>', $parser->next_value);
print 'Timestamp: ', strftime ('%a, %d %b %Y %H:%M:%S %z', localtime $timestamp), "\n";
} else {
die 'Unknown tag: ' . $parser->tag . ' at index: ' . ($parser->index - 3);
}
}
print "\n";
die 'No header serial number' unless (length $header_serial_number);
die 'No header digest algorithm' unless ($header_digest_algorithm);
die 'No header signature' unless ($header_signature_index);
# Records
my ($record_number, $record_certificate);
$record_number = 0;
until ($parser->done) {
die 'Not a record_length tag: ' . $parser->tag if ($parser->next_tag != RECORD_LENGTH);
die 'Wrong record_length length: ' . $parser->length if ($parser->next_length != 2);
my $record_length = unpack ('S>', $parser->next_value);
my $record_index = $parser->index - $parser->length - 3;
$record_number++;
print 'Record Number: ', $record_number, "\n",
'Record Length: ', $record_length, ' bytes', "\n";
my ($record_function, $record_serial_number);
while ($parser->index - $record_index < $record_length) {
$parser->next_tag;
$parser->next_length;
if ($parser->tag == RECORD_DNS_NAME) {
my $dns_name = unpack ('Z*', $parser->next_value);
print 'DNS Name: ', $dns_name, "\n";
} elsif ($parser->tag == RECORD_SUBJECT_NAME) {
my $subject_name = unpack ('Z*', $parser->next_value);
print 'Subject Name: ', $subject_name, "\n";
} elsif ($parser->tag == RECORD_FUNCTION) {
my $function = unpack ('S>', $parser->next_value);
$record_function = $function;
print 'Function: ';
if ($function == FUNCTION_SAST) {
print 'SAST';
} elsif ($function == FUNCTION_CCM) {
print 'CCM';
} elsif ($function == FUNCTION_CCM_TFTP) {
print 'CCM+TFTP';
} elsif ($function == FUNCTION_TFTP) {
print 'TFTP';
} elsif ($function == FUNCTION_CAPF) {
print 'CAPF';
} elsif ($function == FUNCTION_SRST) {
print 'SRST';
} elsif ($function == FUNCTION_HTTPS) {
print 'HTTPS';
} elsif ($function == FUNCTION_TVS) {
print 'TVS';
}
print "\n";
} elsif ($parser->tag == RECORD_ISSUER_NAME) {
my $issuer_name = unpack ('Z*', $parser->next_value);
print 'Issuer Name: ', $issuer_name, "\n";
} elsif ($parser->tag == RECORD_SERIAL_NUMBER) {
my $serial_number = uc unpack ('H*', $parser->next_value);
$record_serial_number = $serial_number;
print 'Serial Number: ', join (':', $serial_number =~ m/(..)/g), "\n";
} elsif ($parser->tag == RECORD_PUBLIC_KEY) {
my $public_key = $parser->next_value;
print 'Public Key: ', length ($public_key), ' bytes', "\n";
} elsif ($parser->tag == RECORD_SIGNATURE) {
my $signature = $parser->next_value;
print 'Signature: ', length ($signature), ' bytes', "\n";
} elsif ($parser->tag == RECORD_CERTIFICATE) {
my $certificate = $parser->next_value;
# Records that have the same serial number as the header and SAST function are used for signing
if ($record_serial_number eq $header_serial_number && defined ($record_function) && $record_function == FUNCTION_SAST) {
$record_certificate = $certificate;
}
print 'Certificate: ', length ($certificate), ' bytes', "\n";
} else {
die 'Invalid record tag: ' . $parser->tag . ' at index: ' . ($parser->index - 3);
}
}
print "\n";
}
die 'No record certificate' unless (length $record_certificate);
my $x509 = Crypt::OpenSSL::X509->new_from_string ($record_certificate, FORMAT_ASN1);
die 'Unable to load record x509 certificate' unless ($x509);
my $rsa = Crypt::OpenSSL::RSA->new_public_key ($x509->pubkey);
die 'Unable to parse RSA public key' unless ($rsa);
if ($header_digest_algorithm == DIGEST_SHA1) {
$rsa->use_sha1_hash;
} elsif ($header_digest_algorithm == DIGEST_SHA256) {
$rsa->use_sha256_hash;
} else {
die 'Unknown header_digest_algorithm: ' . $header_digest_algorithm;
}
$content = $parser->content;
my $signature = substr ($content, $header_signature_index + 3, $header_signature_length - 3);
# Remove the signature block
substr ($content, $header_signature_index, $header_signature_length, '');
if ($rsa->verify ($content, $signature)) {
print 'Valid signature', "\n";
} else {
print 'Invalid signature', "\n";
}
}
sub build_tlv {
my ($tlv_file, $certificate_file, $digest_algorithm, $filename, $records);
$tlv_file = shift;
$certificate_file = shift;
$digest_algorithm = shift;
$filename = shift;
$records = shift;
# Automatically grant the signing certificate the SAST function
unshift (@{$records}, {certificate_file => $certificate_file, function => 'SAST'});
my ($file, $content);
unless ($file = IO::File->new ($certificate_file, '<:raw')) {
die 'Unable to read ' . $certificate_file . ': ' . $OS_ERROR;
}
$content = do {local $INPUT_RECORD_SEPARATOR; $file->getline};
$file->close;
my $x509 = Crypt::OpenSSL::X509->new_from_string ($content, FORMAT_PEM);
die 'Unable to load header certificate' unless ($x509);
my $rsa = Crypt::OpenSSL::RSA->new_private_key ($content);
die 'Unable to load header private key' unless ($rsa);
if ($digest_algorithm eq 'SHA1') {
$rsa->use_sha1_hash;
} elsif ($digest_algorithm eq 'SHA256') {
$rsa->use_sha256_hash;
} else {
die 'Unknown digest_algorithm: ' . $digest_algorithm;
}
my $builder = TLV::Builder->new;
my $header_signature_index;
do {
# Header
$builder->next_tag (HEADER_VERSION);
$builder->next_length (2);
$builder->next_value (pack ('CC', 1, 2));
$builder->next_tag (HEADER_LENGTH);
$builder->next_length (2);
$builder->next_value (pack ('S>', 0));
(my $signer_name = $x509->subject) =~ s/, /;/g;
(my $ca_name = $x509->issuer) =~ s/, /;/g;
my $serial_number = pack ('H*', $x509->serial);
# Combined TLV length for signer_name, serial_number and ca_name
my $signer_id = 3 + length ($signer_name) + 1 + 3 + length ($serial_number) + 3 + length ($ca_name) + 1;
$builder->next_tag (HEADER_SIGNER_ID);
$builder->next_length ($signer_id);
$builder->next_tag (HEADER_SIGNER_NAME);
$builder->next_length (length ($signer_name) + 1);
$builder->next_value (pack ('Z*', $signer_name));
$builder->next_tag (HEADER_SERIAL_NUMBER);
$builder->next_length (length $serial_number);
$builder->next_value ($serial_number);
$builder->next_tag (HEADER_CA_NAME);
$builder->next_length (length ($ca_name) + 1);
$builder->next_value (pack ('Z*', $ca_name));
$builder->next_tag (HEADER_SIGNATURE_INFO);
$builder->next_length (15); # Unknown
$builder->next_tag (HEADER_DIGEST_ALGORITHM);
$builder->next_length (1);
$builder->next_value (pack ('C', do {
if ($digest_algorithm eq 'SHA1') {
DIGEST_SHA1;
} elsif ($digest_algorithm eq 'SHA256') {
DIGEST_SHA256;
} else {
die 'Unknown digest algorithm: ' . $digest_algorithm;
}
}));
$builder->next_tag (HEADER_SIGNATURE_ALGORITHM_INFO);
$builder->next_length (8); # Unknown
$builder->next_tag (HEADER_SIGNATURE_ALGORITHM);
$builder->next_length (1);
$builder->next_value (pack ('C', 0)); # Unknown
my $signature_modulus;
if ($rsa->size == 64) {
$signature_modulus = 0;
} elsif ($rsa->size == 128) {
$signature_modulus = 1;
} elsif ($rsa->size == 256) {
$signature_modulus = 2;
} elsif ($rsa->size == 512) {
$signature_modulus = 3;
} else {
die 'Unsupported RSA key size: ' . $rsa->size;
}
$builder->next_tag (HEADER_SIGNATURE_MODULUS);
$builder->next_length (1);
$builder->next_value (pack ('C', $signature_modulus));
# The insertion index of the signature
$header_signature_index = $builder->index;
$builder->next_tag (HEADER_FILENAME);
$builder->next_length (length ($filename) + 1);
$builder->next_value (pack ('Z*', $filename));
$builder->next_tag (HEADER_TIMESTAMP);
$builder->next_length (4);
$builder->next_value (pack ('L>', time));
# Header must be padded to 32-bit boundary
while (($builder->index + 3 + $rsa->size) % 4) {
$builder->next_tag (HEADER_PADDING);
}
# Signed content includes the length of the signature block
$builder->length (8, $builder->index + 3 + $rsa->size);
};
# Records
foreach my $record (@{$records}) {
my ($certificate_file, $function) = ($record->{certificate_file}, $record->{function});
my ($file, $content);
unless ($file = IO::File->new ($certificate_file, '<:raw')) {
die 'Unable to read ' . $certificate_file . ': ' . $OS_ERROR;
}
$content = do {local $INPUT_RECORD_SEPARATOR; $file->getline};
$file->close;
my $x509 = Crypt::OpenSSL::X509->new_from_string ($content, FORMAT_PEM);
die 'Unable to load record certificate' unless ($x509);
my $record_index = $builder->index;
$builder->next_tag (RECORD_LENGTH);
$builder->next_length (2);
$builder->next_value (pack ('S>', 0));
unless ($function eq 'SAST') {
(my $dns_name) = ($x509->subject =~ m/\bCN=([^,]+)/);
# DNS name is included even if empty
$builder->next_tag (RECORD_DNS_NAME);
$builder->next_length (length ($dns_name) + 1);
$builder->next_value (pack ('Z*', $dns_name));
}
(my $subject_name = $x509->subject) =~ s/, /;/g;
$builder->next_tag (RECORD_SUBJECT_NAME);
$builder->next_length (length ($subject_name) + 1);
$builder->next_value (pack ('Z*', $subject_name));
$builder->next_tag (RECORD_FUNCTION);
$builder->next_length (2);
$builder->next_value (pack ('S>', do {
if ($function eq 'SAST') {
FUNCTION_SAST;
} elsif ($function eq 'CCM') {
FUNCTION_CCM;
} elsif ($function eq 'CCM+TFTP') {
FUNCTION_CCM_TFTP;
} elsif ($function eq 'TFTP') {
FUNCTION_TFTP;
} elsif ($function eq 'CAPF') {
FUNCTION_CAPF;
} elsif ($function eq 'SRST') {
FUNCTION_SRST;
} elsif ($function eq 'HTTPS') {
FUNCTION_HTTPS;
} elsif ($function eq 'TVS') {
FUNCTION_TVS;
} else {
die 'Unknown record function: ' . $function;
};
}));
(my $issuer_name = $x509->issuer) =~ s/, /;/g;
$builder->next_tag (RECORD_ISSUER_NAME);
$builder->next_length (length ($issuer_name) + 1);
$builder->next_value (pack ('Z*', $issuer_name));
my $serial_number = pack ('H*', $x509->serial);
$builder->next_tag (RECORD_SERIAL_NUMBER);
$builder->next_length (length $serial_number);
$builder->next_value ($serial_number);
my $asn1 = Convert::ASN1->new;
$asn1->prepare ('SEQUENCE { modulus INTEGER, exponent INTEGER }');
my $public_key = $asn1->encode ({modulus => Math::BigInt->from_hex ($x509->modulus),
exponent => hex $x509->exponent});
$builder->next_tag (RECORD_PUBLIC_KEY);
$builder->next_length (length $public_key);
$builder->next_value ($public_key);
my $signature = pack ('H*', $x509->sig_print);
$builder->next_tag (RECORD_SIGNATURE);
$builder->next_length (length $signature);
$builder->next_value ($signature);
my $certificate = $x509->as_string (FORMAT_ASN1);
$builder->next_tag (RECORD_CERTIFICATE);
$builder->next_length (length $certificate);
$builder->next_value ($certificate);
my $record_length = $builder->index - $record_index;
$builder->length ($record_index + 3, $record_length);
};
$content = $builder->content;
die 'Unable to sign content' unless (my $signature = $rsa->sign ($content));
# Insert signature into content
substr ($content, $header_signature_index, 0, pack ('CS>a*', HEADER_SIGNATURE, $rsa->size, $signature));
unless ($file = IO::File->new ($tlv_file, '>:raw')) {
die 'Unable to write ' . $tlv_file . ': ' . $OS_ERROR;
}
$file->print ($content);
$file->close;
print 'Built ', $tlv_file, "\n";
}
eval {
my ($mode, $tlv_file, $certificate_file, $digest_algorithm, $filename, $records, $record, $show_help);
$records = [];
my $getopt = Getopt::Long::Parser->new;
$getopt->configure (qw/no_ignore_case/);
unless ($getopt->getoptions ('p|parse' => sub {shift; $mode = 'parse'},
'b|build' => sub {shift; $mode = 'build'},
'c|certificate=s' => sub {shift; $certificate_file = shift},
'd|digest=s' => sub {shift; $digest_algorithm = uc shift},
'r|record=s' => sub {shift; push (@{$records}, $record = {certificate_file => shift})},
'f|function=s' => sub {shift; $record->{function} = uc shift if $record},
'F|filename=s' => sub {shift; $filename = shift},
'h|help' => sub {shift; $show_help = shift})) {
die 'Error parsing options';
}
if ($show_help) {
print 'Usage: ', basename ($PROGRAM_NAME), ' <FILE> [OPTIONS]', "\n",
'Parse or build a .tlv file', "\n",
"\n",
' -p --parse parse a .tlv file', "\n",
' -b --build build a .tlv file', "\n",
' -c --certificate <file> certificate to use for verifying or signing', "\n",
' -d --digest <name> signature digest (sha1, sha256)', "\n",
' -F --filename <name> header filename in built .tlv file (optional)', "\n",
' -r --record <file> additional record certificate', "\n",
' -f --function <name> record function (sast, ccm, ccm+tftp tftp, https)', "\n",
' -h --help print this help and exit', "\n",
"\n";
return;
}
die 'No .tlv file specified' unless (length ($tlv_file = shift));
if ($mode eq 'parse') {
parse_tlv ($tlv_file);
} elsif ($mode eq 'build') {
die 'No signing certificate file specified' unless (length $certificate_file);
$digest_algorithm = 'SHA1' unless (length $digest_algorithm);
$filename = basename ($tlv_file) unless (length $filename);
build_tlv ($tlv_file, $certificate_file, $digest_algorithm, $filename, $records);
} else {
die 'No mode specified';
}
};
if (length $EVAL_ERROR) {
$EVAL_ERROR =~ s/ at \S+ line \d+\.//;
warn $EVAL_ERROR;
exit EXIT_FAILURE;
}
exit EXIT_SUCCESS;