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Commit a2db49be authored by Melisa Carranza Zúñiga's avatar Melisa Carranza Zúñiga Committed by Automerger Merge Worker
Browse files

Merge "Adding sepolicy sign params to sign_target_files_apks." am: fb042449 am: bd8c3132

Original change: https://android-review.googlesource.com/c/platform/build/+/2028269

Change-Id: I253d25f4ea34369fe8da5904cabcd6afbf40c7d1
parents 3f5a0841 bd8c3132
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+1 −0
Original line number Diff line number Diff line
@@ -97,6 +97,7 @@ class Options(object):
    self.stash_threshold = 0.8
    self.logfile = None
    self.host_tools = {}
    self.sepolicy_name = 'sepolicy.apex'


OPTIONS = Options()
+2 −1
Original line number Diff line number Diff line
@@ -61,6 +61,7 @@ import apex_utils
import common

logger = logging.getLogger(__name__)
OPTIONS = common.OPTIONS


def SignApexFile(avbtool, apex_file, payload_key, container_key, no_hashtree,
@@ -81,7 +82,7 @@ def SignApexFile(avbtool, apex_file, payload_key, container_key, no_hashtree,
      apk_keys=apk_keys,
      signing_args=signing_args,
      sign_tool=sign_tool,
      is_sepolicy=apex_file.endswith("sepolicy.apex"),
      is_sepolicy=apex_file.endswith(OPTIONS.sepolicy_name),
      sepolicy_key=sepolicy_key,
      sepolicy_cert=sepolicy_cert,
      fsverity_tool=fsverity_tool)
+80 −10
Original line number Diff line number Diff line
@@ -137,6 +137,15 @@ Usage: sign_target_files_apks [flags] input_target_files output_target_files
  --android_jar_path <path>
      Path to the android.jar to repack the apex file.

  --sepolicy_key <key>
      Optional flag that specifies the sepolicy signing key, defaults to payload_key for the sepolicy.apex.

  --sepolicy_cert <cert>
      Optional flag that specifies the sepolicy signing cert.

  --fsverity_tool <path>
      Optional flag that specifies the path to fsverity tool to sign SEPolicy, defaults to fsverity.

  --allow_gsi_debug_sepolicy
      Allow the existence of the file 'userdebug_plat_sepolicy.cil' under
      (/system/system_ext|/system_ext)/etc/selinux.
@@ -196,6 +205,9 @@ OPTIONS.gki_signing_extra_args = None
OPTIONS.android_jar_path = None
OPTIONS.vendor_partitions = set()
OPTIONS.vendor_otatools = None
OPTIONS.sepolicy_key = None
OPTIONS.sepolicy_cert = None
OPTIONS.fsverity_tool = None
OPTIONS.allow_gsi_debug_sepolicy = False


@@ -234,6 +246,8 @@ ALLOWED_VENDOR_PARTITIONS = set(["vendor", "odm"])
def IsApexFile(filename):
  return filename.endswith(".apex") or filename.endswith(".capex")

def IsSepolicyApex(filename):
  return filename.endswith(OPTIONS.sepolicy_name)

def GetApexFilename(filename):
  name = os.path.basename(filename)
@@ -256,6 +270,24 @@ def GetApkCerts(certmap):

  return certmap

def GetSepolicyKeys(keys_info):
  """Gets SEPolicy signing keys applying overrides from command line options.

  Args:
    keys_info: A dict that maps from the SEPolicy APEX filename to a tuple of
    (sepolicy_key, sepolicy_cert, fsverity_tool).

  Returns:
    A dict that contains the updated APEX key mapping, which should be used for
    the current signing.
  """
  for name in keys_info:
      (sepolicy_key, sepolicy_cert, fsverity_tool) = keys_info[name]
      sepolicy_key = OPTIONS.sepolicy_key if OPTIONS.sepolicy_key else sepolicy_key
      sepolicy_cert = OPTIONS.sepolicy_cert if OPTIONS.sepolicy_cert else sepolicy_cert
      fsverity_tool = OPTIONS.fsverity_tool if OPTIONS.fsverity_tool else fsverity_tool
      keys_info[name] = (sepolicy_key, sepolicy_cert, fsverity_tool)
  return keys_info

def GetApexKeys(keys_info, key_map):
  """Gets APEX payload and container signing keys by applying the mapping rules.
@@ -518,7 +550,7 @@ def IsBuildPropFile(filename):
def ProcessTargetFiles(input_tf_zip, output_tf_zip, misc_info,
                       apk_keys, apex_keys, key_passwords,
                       platform_api_level, codename_to_api_level_map,
                       compressed_extension):
                       compressed_extension, sepolicy_keys):
  # maxsize measures the maximum filename length, including the ones to be
  # skipped.
  try:
@@ -586,6 +618,17 @@ def ProcessTargetFiles(input_tf_zip, output_tf_zip, misc_info,
        print("           : %-*s payload   (%s)" % (
            maxsize, name, payload_key))

        sepolicy_key = None
        sepolicy_cert = None
        fsverity_tool = None

        if IsSepolicyApex(name):
          (sepolicy_key, sepolicy_cert, fsverity_tool) = sepolicy_keys[name]
          print("           : %-*s sepolicy key   (%s)" % (
            maxsize, name, sepolicy_key))
          print("           : %-*s sepolicy cert  (%s)" % (
            maxsize, name, sepolicy_cert))

        signed_apex = apex_utils.SignApex(
            misc_info['avb_avbtool'],
            data,
@@ -596,7 +639,11 @@ def ProcessTargetFiles(input_tf_zip, output_tf_zip, misc_info,
            codename_to_api_level_map,
            no_hashtree=None,  # Let apex_util determine if hash tree is needed
            signing_args=OPTIONS.avb_extra_args.get('apex'),
            sign_tool=sign_tool)
            sign_tool=sign_tool,
            is_sepolicy=IsSepolicyApex(name),
            sepolicy_key=sepolicy_key,
            sepolicy_cert=sepolicy_cert,
            fsverity_tool=fsverity_tool)
        common.ZipWrite(output_tf_zip, signed_apex, filename)

      else:
@@ -1206,20 +1253,24 @@ def GetCodenameToApiLevelMap(input_tf_zip):
def ReadApexKeysInfo(tf_zip):
  """Parses the APEX keys info from a given target-files zip.

  Given a target-files ZipFile, parses the META/apexkeys.txt entry and returns a
  dict that contains the mapping from APEX names (e.g. com.android.tzdata) to a
  tuple of (payload_key, container_key, sign_tool).
  Given a target-files ZipFile, parses the META/apexkeys.txt entry and returns
  two dicts, the first one contains the mapping from APEX names
  (e.g. com.android.tzdata) to a tuple of (payload_key, container_key,
  sign_tool). The second one maps the sepolicy APEX name to a tuple containing
  (sepolicy_key, sepolicy_cert, fsverity_tool).

  Args:
    tf_zip: The input target_files ZipFile (already open).

  Returns:
    (payload_key, container_key, sign_tool):
    name : (payload_key, container_key, sign_tool)
      - payload_key contains the path to the payload signing key
      - container_key contains the path to the container signing key
      - sign_tool is an apex-specific signing tool for its payload contents
    name : (sepolicy_key, sepolicy_cert, fsverity_tool)
  """
  keys = {}
  sepolicy_keys = {}
  for line in tf_zip.read('META/apexkeys.txt').decode().split('\n'):
    line = line.strip()
    if not line:
@@ -1230,6 +1281,9 @@ def ReadApexKeysInfo(tf_zip):
        r'private_key="(?P<PAYLOAD_PRIVATE_KEY>.*)"\s+'
        r'container_certificate="(?P<CONTAINER_CERT>.*)"\s+'
        r'container_private_key="(?P<CONTAINER_PRIVATE_KEY>.*?)"'
        r'(\s+sepolicy_key="(?P<SEPOLICY_KEY>.*?)")?'
        r'(\s+sepolicy_certificate="(?P<SEPOLICY_CERT>.*?)")?'
        r'(\s+fsverity_tool="(?P<FSVERITY_TOOL>.*?)")?'
        r'(\s+partition="(?P<PARTITION>.*?)")?'
        r'(\s+sign_tool="(?P<SIGN_TOOL>.*?)")?$',
        line)
@@ -1258,12 +1312,18 @@ def ReadApexKeysInfo(tf_zip):
            container_private_key, OPTIONS.private_key_suffix):
      container_key = container_cert[:-len(OPTIONS.public_key_suffix)]
    else:
      raise ValueError("Failed to parse container keys: \n{}".format(line))
      raise ValueError("Failed to parse container keys: \n{} **** {}".format(container_cert, container_private_key))

    sign_tool = matches.group("SIGN_TOOL")
    keys[name] = (payload_private_key, container_key, sign_tool)

  return keys
    if IsSepolicyApex(name):
      sepolicy_key = matches.group('SEPOLICY_KEY')
      sepolicy_cert = matches.group('SEPOLICY_CERT')
      fsverity_tool = matches.group('FSVERITY_TOOL')
      sepolicy_keys[name] = (sepolicy_key, sepolicy_cert, fsverity_tool)

  return keys, sepolicy_keys


def BuildVendorPartitions(output_zip_path):
@@ -1475,6 +1535,12 @@ def main(argv):
      OPTIONS.vendor_otatools = a
    elif o == "--vendor_partitions":
      OPTIONS.vendor_partitions = set(a.split(","))
    elif o == '--sepolicy_key':
      OPTIONS.sepolicy_key = a
    elif o == '--sepolicy_cert':
      OPTIONS.sepolicy_cert = a
    elif o == '--fsverity_tool':
      OPTIONS.fsverity_tool = a
    elif o == "--allow_gsi_debug_sepolicy":
      OPTIONS.allow_gsi_debug_sepolicy = True
    else:
@@ -1529,6 +1595,9 @@ def main(argv):
          "gki_signing_extra_args=",
          "vendor_partitions=",
          "vendor_otatools=",
          "sepolicy_key=",
          "sepolicy_cert=",
          "fsverity_tool=",
          "allow_gsi_debug_sepolicy",
      ],
      extra_option_handler=option_handler)
@@ -1551,8 +1620,9 @@ def main(argv):
  apk_keys_info, compressed_extension = common.ReadApkCerts(input_zip)
  apk_keys = GetApkCerts(apk_keys_info)

  apex_keys_info = ReadApexKeysInfo(input_zip)
  apex_keys_info, sepolicy_keys_info = ReadApexKeysInfo(input_zip)
  apex_keys = GetApexKeys(apex_keys_info, apk_keys)
  sepolicy_keys = GetSepolicyKeys(sepolicy_keys_info)

  # TODO(xunchang) check for the apks inside the apex files, and abort early if
  # the keys are not available.
@@ -1570,7 +1640,7 @@ def main(argv):
  ProcessTargetFiles(input_zip, output_zip, misc_info,
                     apk_keys, apex_keys, key_passwords,
                     platform_api_level, codename_to_api_level_map,
                     compressed_extension)
                     compressed_extension, sepolicy_keys)

  common.ZipClose(input_zip)
  common.ZipClose(output_zip)
+75 −5
Original line number Diff line number Diff line
@@ -476,7 +476,7 @@ name="apex.apexd_test_different_app.apex" public_key="system/apex/apexd/apexd_te
      target_files_zip.writestr('META/apexkeys.txt', self.APEX_KEYS_TXT)

    with zipfile.ZipFile(target_files, allowZip64=True) as target_files_zip:
      keys_info = ReadApexKeysInfo(target_files_zip)
      keys_info, sepolicy_keys_info = ReadApexKeysInfo(target_files_zip)

    self.assertEqual({
        'apex.apexd_test.apex': (
@@ -486,6 +486,7 @@ name="apex.apexd_test_different_app.apex" public_key="system/apex/apexd/apexd_te
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem',
            'build/make/target/product/security/testkey', None),
        }, keys_info)
    self.assertEqual({}, sepolicy_keys_info)

  def test_ReadApexKeysInfo_mismatchingContainerKeys(self):
    # Mismatching payload public / private keys.
@@ -515,7 +516,7 @@ name="apex.apexd_test_different_app.apex" public_key="system/apex/apexd/apexd_te
      target_files_zip.writestr('META/apexkeys.txt', apex_keys)

    with zipfile.ZipFile(target_files, allowZip64=True) as target_files_zip:
      keys_info = ReadApexKeysInfo(target_files_zip)
      keys_info, sepolicy_keys_info = ReadApexKeysInfo(target_files_zip)

    self.assertEqual({
        'apex.apexd_test.apex': (
@@ -525,6 +526,7 @@ name="apex.apexd_test_different_app.apex" public_key="system/apex/apexd/apexd_te
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem',
            'build/make/target/product/security/testkey', None),
        }, keys_info)
    self.assertEqual({}, sepolicy_keys_info)

  def test_ReadApexKeysInfo_missingPayloadPublicKey(self):
    # Invalid lines will be skipped.
@@ -538,7 +540,7 @@ name="apex.apexd_test_different_app.apex" public_key="system/apex/apexd/apexd_te
      target_files_zip.writestr('META/apexkeys.txt', apex_keys)

    with zipfile.ZipFile(target_files, allowZip64=True) as target_files_zip:
      keys_info = ReadApexKeysInfo(target_files_zip)
      keys_info, sepolicy_keys_info = ReadApexKeysInfo(target_files_zip)

    self.assertEqual({
        'apex.apexd_test.apex': (
@@ -548,6 +550,7 @@ name="apex.apexd_test_different_app.apex" public_key="system/apex/apexd/apexd_te
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem',
            'build/make/target/product/security/testkey', None),
        }, keys_info)
    self.assertEqual({}, sepolicy_keys_info)

  def test_ReadApexKeysInfo_presignedKeys(self):
    apex_keys = self.APEX_KEYS_TXT + (
@@ -561,7 +564,7 @@ name="apex.apexd_test_different_app.apex" public_key="system/apex/apexd/apexd_te
      target_files_zip.writestr('META/apexkeys.txt', apex_keys)

    with zipfile.ZipFile(target_files, allowZip64=True) as target_files_zip:
      keys_info = ReadApexKeysInfo(target_files_zip)
      keys_info, sepolicy_keys_info = ReadApexKeysInfo(target_files_zip)

    self.assertEqual({
        'apex.apexd_test.apex': (
@@ -571,6 +574,7 @@ name="apex.apexd_test_different_app.apex" public_key="system/apex/apexd/apexd_te
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem',
            'build/make/target/product/security/testkey', None),
        }, keys_info)
    self.assertEqual({}, sepolicy_keys_info)

  def test_ReadApexKeysInfo_presignedKeys(self):
    apex_keys = self.APEX_KEYS_TXT + (
@@ -584,7 +588,7 @@ name="apex.apexd_test_different_app.apex" public_key="system/apex/apexd/apexd_te
      target_files_zip.writestr('META/apexkeys.txt', apex_keys)

    with zipfile.ZipFile(target_files, allowZip64=True) as target_files_zip:
      keys_info = ReadApexKeysInfo(target_files_zip)
      keys_info, sepolicy_keys_info = ReadApexKeysInfo(target_files_zip)

    self.assertEqual({
        'apex.apexd_test.apex': (
@@ -594,6 +598,72 @@ name="apex.apexd_test_different_app.apex" public_key="system/apex/apexd/apexd_te
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem',
            'build/make/target/product/security/testkey', None),
        }, keys_info)
    self.assertEqual({}, sepolicy_keys_info)

  def test_ReadApexKeysInfo_withSepolicyKeys(self):
    apex_keys = self.APEX_KEYS_TXT + (
        'name="sepolicy.apex" '
        'public_key="system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.avbpubkey" '
        'private_key="system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem" '
        'container_certificate="build/make/target/product/security/testkey.x509.pem" '
        'container_private_key="build/make/target/product/security/testkey.pk8" '
        'sepolicy_key="build/make/target/product/security/testkey.key" '
        'sepolicy_certificate="build/make/target/product/security/testkey.x509.pem" '
        'fsverity_tool="fsverity"')
    target_files = common.MakeTempFile(suffix='.zip')
    with zipfile.ZipFile(target_files, 'w', allowZip64=True) as target_files_zip:
      target_files_zip.writestr('META/apexkeys.txt', apex_keys)

    with zipfile.ZipFile(target_files, allowZip64=True) as target_files_zip:
      keys_info, sepolicy_keys_info = ReadApexKeysInfo(target_files_zip)

    self.assertEqual({
        'apex.apexd_test.apex': (
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package.pem',
            'build/make/target/product/security/testkey', None),
        'apex.apexd_test_different_app.apex': (
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem',
            'build/make/target/product/security/testkey', None),
        'sepolicy.apex': (
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem',
            'build/make/target/product/security/testkey', None),
        }, keys_info)
    self.assertEqual({'sepolicy.apex': (
            'build/make/target/product/security/testkey.key',
            'build/make/target/product/security/testkey.x509.pem',
            'fsverity'),
        }, sepolicy_keys_info)

  def test_ReadApexKeysInfo_withSepolicyApex(self):
    apex_keys = self.APEX_KEYS_TXT + (
        'name="sepolicy.apex" '
        'public_key="system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.avbpubkey" '
        'private_key="system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem" '
        'container_certificate="build/make/target/product/security/testkey.x509.pem" '
        'container_private_key="build/make/target/product/security/testkey.pk8" ')
    target_files = common.MakeTempFile(suffix='.zip')
    with zipfile.ZipFile(target_files, 'w', allowZip64=True) as target_files_zip:
      target_files_zip.writestr('META/apexkeys.txt', apex_keys)

    with zipfile.ZipFile(target_files, allowZip64=True) as target_files_zip:
      keys_info, sepolicy_keys_info = ReadApexKeysInfo(target_files_zip)

    self.assertEqual({
        'apex.apexd_test.apex': (
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package.pem',
            'build/make/target/product/security/testkey', None),
        'apex.apexd_test_different_app.apex': (
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem',
            'build/make/target/product/security/testkey', None),
        'sepolicy.apex': (
            'system/apex/apexd/apexd_testdata/com.android.apex.test_package_2.pem',
            'build/make/target/product/security/testkey', None),
        }, keys_info)
    self.assertEqual({'sepolicy.apex': (
            None,
            None,
            None),
        }, sepolicy_keys_info)

  def test_ReplaceGkiSigningKey(self):
    common.OPTIONS.gki_signing_key = 'release_gki_key'