BaseTools: Replace StandardError with Expression

[mirror_edk2.git] / BaseTools / Source / Python / Rsa2048Sha256Sign / Rsa2048Sha256Sign.py

## @file\r
# This tool encodes and decodes GUIDed FFS sections or FMP capsule for a GUID type of\r
# EFI_CERT_TYPE_RSA2048_SHA256_GUID defined in the UEFI 2.4 Specification as\r
#   {0xa7717414, 0xc616, 0x4977, {0x94, 0x20, 0x84, 0x47, 0x12, 0xa7, 0x35, 0xbf}}\r
# This tool has been tested with OpenSSL 1.0.1e 11 Feb 2013\r
#\r
# Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR>\r
# This program and the accompanying materials\r
# are licensed and made available under the terms and conditions of the BSD License\r
# which accompanies this distribution.  The full text of the license may be found at\r
# http://opensource.org/licenses/bsd-license.php\r
#\r
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
#\r
\r
'''\r
Rsa2048Sha256Sign\r
'''\r
from __future__ import print_function\r
\r
import os\r
import sys\r
import argparse \r
import subprocess\r
import uuid\r
import struct\r
import collections\r
from Common.BuildVersion import gBUILD_VERSION\r
\r
#\r
# Globals for help information\r
#\r
__prog__      = 'Rsa2048Sha256Sign'\r
__version__   = '%s Version %s' % (__prog__, '0.9 ' + gBUILD_VERSION)\r
__copyright__ = 'Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.'\r
__usage__     = '%s -e|-d [options] <input_file>' % (__prog__)\r
\r
#\r
# GUID for SHA 256 Hash Algorithm from UEFI Specification\r
#\r
EFI_HASH_ALGORITHM_SHA256_GUID = uuid.UUID('{51aa59de-fdf2-4ea3-bc63-875fb7842ee9}')\r
\r
#\r
# Structure defintion to unpack EFI_CERT_BLOCK_RSA_2048_SHA256 from UEFI 2.4 Specification\r
#\r
#   typedef struct _EFI_CERT_BLOCK_RSA_2048_SHA256 {\r
#     EFI_GUID HashType;\r
#     UINT8 PublicKey[256];\r
#     UINT8 Signature[256];\r
#   } EFI_CERT_BLOCK_RSA_2048_SHA256;\r
#\r
EFI_CERT_BLOCK_RSA_2048_SHA256        = collections.namedtuple('EFI_CERT_BLOCK_RSA_2048_SHA256', ['HashType','PublicKey','Signature'])\r
EFI_CERT_BLOCK_RSA_2048_SHA256_STRUCT = struct.Struct('16s256s256s')\r
\r
#\r
# Filename of test signing private key that is stored in same directory as this tool\r
#\r
TEST_SIGNING_PRIVATE_KEY_FILENAME = 'TestSigningPrivateKey.pem'\r
\r
if __name__ == '__main__':\r
  #\r
  # Create command line argument parser object\r
  #  \r
  parser = argparse.ArgumentParser(prog=__prog__, version=__version__, usage=__usage__, description=__copyright__, conflict_handler='resolve')\r
  group = parser.add_mutually_exclusive_group(required=True)\r
  group.add_argument("-e", action="store_true", dest='Encode', help='encode file')\r
  group.add_argument("-d", action="store_true", dest='Decode', help='decode file')\r
  parser.add_argument("-o", "--output", dest='OutputFile', type=str, metavar='filename', help="specify the output filename", required=True)\r
  parser.add_argument("--monotonic-count", dest='MonotonicCountStr', type=str, help="specify the MonotonicCount in FMP capsule.")\r
  parser.add_argument("--private-key", dest='PrivateKeyFile', type=argparse.FileType('rb'), help="specify the private key filename.  If not specified, a test signing key is used.")\r
  parser.add_argument("-v", "--verbose", dest='Verbose', action="store_true", help="increase output messages")\r
  parser.add_argument("-q", "--quiet", dest='Quiet', action="store_true", help="reduce output messages")\r
  parser.add_argument("--debug", dest='Debug', type=int, metavar='[0-9]', choices=range(0,10), default=0, help="set debug level")\r
  parser.add_argument(metavar="input_file", dest='InputFile', type=argparse.FileType('rb'), help="specify the input filename")\r
\r
  #\r
  # Parse command line arguments\r
  #  \r
  args = parser.parse_args()\r
\r
  #\r
  # Generate file path to Open SSL command\r
  #\r
  OpenSslCommand = 'openssl'\r
  try:\r
    OpenSslPath = os.environ['OPENSSL_PATH']\r
    OpenSslCommand = os.path.join(OpenSslPath, OpenSslCommand)\r
    if ' ' in OpenSslCommand:\r
      OpenSslCommand = '"' + OpenSslCommand + '"'\r
  except:\r
    pass\r
\r
  #\r
  # Verify that Open SSL command is available\r
  #\r
  try:\r
    Process = subprocess.Popen('%s version' % (OpenSslCommand), stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)\r
  except:  \r
    print('ERROR: Open SSL command not available.  Please verify PATH or set OPENSSL_PATH')\r
    sys.exit(1)\r
    \r
  Version = Process.communicate()\r
  if Process.returncode != 0:\r
    print('ERROR: Open SSL command not available.  Please verify PATH or set OPENSSL_PATH')\r
    sys.exit(Process.returncode)\r
  print(Version[0])\r
  \r
  #\r
  # Read input file into a buffer and save input filename\r
  #  \r
  args.InputFileName   = args.InputFile.name\r
  args.InputFileBuffer = args.InputFile.read()\r
  args.InputFile.close()\r
\r
  #\r
  # Save output filename and check if path exists\r
  #\r
  OutputDir = os.path.dirname(args.OutputFile)\r
  if not os.path.exists(OutputDir):\r
    print('ERROR: The output path does not exist: %s' % OutputDir)\r
    sys.exit(1)\r
  args.OutputFileName = args.OutputFile\r
\r
  #\r
  # Save private key filename and close private key file\r
  #\r
  try:\r
    args.PrivateKeyFileName = args.PrivateKeyFile.name\r
    args.PrivateKeyFile.close()\r
  except:\r
    try:\r
      #\r
      # Get path to currently executing script or executable\r
      #\r
      if hasattr(sys, 'frozen'):\r
          RsaToolPath = sys.executable\r
      else:\r
          RsaToolPath = sys.argv[0]\r
      if RsaToolPath.startswith('"'):\r
          RsaToolPath = RsaToolPath[1:]\r
      if RsaToolPath.endswith('"'):\r
          RsaToolPath = RsaToolPath[:-1]\r
      args.PrivateKeyFileName = os.path.join(os.path.dirname(os.path.realpath(RsaToolPath)), TEST_SIGNING_PRIVATE_KEY_FILENAME)\r
      args.PrivateKeyFile = open(args.PrivateKeyFileName, 'rb')\r
      args.PrivateKeyFile.close()\r
    except:\r
      print('ERROR: test signing private key file %s missing' % (args.PrivateKeyFileName))\r
      sys.exit(1)\r
\r
  #\r
  # Extract public key from private key into STDOUT\r
  #\r
  Process = subprocess.Popen('%s rsa -in "%s" -modulus -noout' % (OpenSslCommand, args.PrivateKeyFileName), stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)\r
  PublicKeyHexString = Process.communicate()[0].split('=')[1].strip()\r
  PublicKey = ''\r
  while len(PublicKeyHexString) > 0:\r
    PublicKey = PublicKey + chr(int(PublicKeyHexString[0:2],16))\r
    PublicKeyHexString=PublicKeyHexString[2:]\r
  if Process.returncode != 0:\r
    sys.exit(Process.returncode)\r
\r
  if args.MonotonicCountStr:\r
    try:\r
      if args.MonotonicCountStr.upper().startswith('0X'):\r
        args.MonotonicCountValue = (long)(args.MonotonicCountStr, 16)\r
      else:\r
        args.MonotonicCountValue = (long)(args.MonotonicCountStr)\r
    except:\r
        pass\r
\r
  if args.Encode:\r
    FullInputFileBuffer = args.InputFileBuffer\r
    if args.MonotonicCountStr:\r
      format = "%dsQ" % len(args.InputFileBuffer)\r
      FullInputFileBuffer = struct.pack(format, args.InputFileBuffer, args.MonotonicCountValue)\r
    # \r
    # Sign the input file using the specified private key and capture signature from STDOUT\r
    #\r
    Process = subprocess.Popen('%s dgst -sha256 -sign "%s"' % (OpenSslCommand, args.PrivateKeyFileName), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)\r
    Signature = Process.communicate(input=FullInputFileBuffer)[0]\r
    if Process.returncode != 0:\r
      sys.exit(Process.returncode)\r
      \r
    #\r
    # Write output file that contains hash GUID, Public Key, Signature, and Input data\r
    #    \r
    args.OutputFile = open(args.OutputFileName, 'wb')\r
    args.OutputFile.write(EFI_HASH_ALGORITHM_SHA256_GUID.get_bytes_le())\r
    args.OutputFile.write(PublicKey)\r
    args.OutputFile.write(Signature)\r
    args.OutputFile.write(args.InputFileBuffer)\r
    args.OutputFile.close()\r
\r
  if args.Decode:\r
    #\r
    # Parse Hash Type, Public Key, and Signature from the section header\r
    #\r
    Header = EFI_CERT_BLOCK_RSA_2048_SHA256._make(EFI_CERT_BLOCK_RSA_2048_SHA256_STRUCT.unpack_from(args.InputFileBuffer))\r
    args.InputFileBuffer = args.InputFileBuffer[EFI_CERT_BLOCK_RSA_2048_SHA256_STRUCT.size:]\r
    \r
    #\r
    # Verify that the Hash Type matches the expected SHA256 type\r
    #\r
    if uuid.UUID(bytes_le = Header.HashType) != EFI_HASH_ALGORITHM_SHA256_GUID:\r
      print('ERROR: unsupport hash GUID')\r
      sys.exit(1)\r
\r
    #\r
    # Verify the public key\r
    #\r
    if Header.PublicKey != PublicKey:\r
      print('ERROR: Public key in input file does not match public key from private key file')\r
      sys.exit(1)\r
\r
    FullInputFileBuffer = args.InputFileBuffer\r
    if args.MonotonicCountStr:\r
      format = "%dsQ" % len(args.InputFileBuffer)\r
      FullInputFileBuffer = struct.pack(format, args.InputFileBuffer, args.MonotonicCountValue)\r
\r
    #\r
    # Write Signature to output file\r
    #\r
    open(args.OutputFileName, 'wb').write(Header.Signature)\r
      \r
    #\r
    # Verify signature\r
    #    \r
    Process = subprocess.Popen('%s dgst -sha256 -prverify "%s" -signature %s' % (OpenSslCommand, args.PrivateKeyFileName, args.OutputFileName), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)\r
    Process.communicate(input=FullInputFileBuffer)\r
    if Process.returncode != 0:\r
      print('ERROR: Verification failed')\r
      os.remove (args.OutputFileName)\r
      sys.exit(Process.returncode)\r
\r
    #\r
    # Save output file contents from input file \r
    #    \r
    open(args.OutputFileName, 'wb').write(args.InputFileBuffer)\r