fs_config: introduce passwd generator am: 316f9462af (13be8e43) · Commits · e / os / android_build

tools/fs_config/Android.mk

+19 −1

Original line number	Diff line number	Diff line
		@@ -105,7 +105,6 @@ LOCAL_GENERATED_SOURCES := $(oem) $(gen)

		my_fs_config_h := $(gen)
		my_gen_oem_aid := $(oem)
		system_android_filesystem_config :=
		gen :=
		oem :=
		endif
		@@ -151,6 +150,25 @@ LOCAL_EXPORT_C_INCLUDE_DIRS := $(dir $(my_gen_oem_aid))
		LOCAL_EXPORT_C_INCLUDE_DEPS := $(my_gen_oem_aid)
		include $(BUILD_STATIC_LIBRARY)

		##################################
		# Generate the system/etc/passwd text file for the target
		# This file may be empty if no AIDs are defined in
		# TARGET_FS_CONFIG_GEN files.
		include $(CLEAR_VARS)

		LOCAL_MODULE := passwd
		LOCAL_MODULE_CLASS := ETC

		include $(BUILD_SYSTEM)/base_rules.mk

		$(LOCAL_BUILT_MODULE): PRIVATE_LOCAL_PATH := $(LOCAL_PATH)
		$(LOCAL_BUILT_MODULE): PRIVATE_TARGET_FS_CONFIG_GEN := $(TARGET_FS_CONFIG_GEN)
		$(LOCAL_BUILT_MODULE): PRIVATE_ANDROID_FS_HDR := $(system_android_filesystem_config)
		$(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/fs_config_generator.py $(TARGET_FS_CONFIG_GEN) $(system_android_filesystem_config)
		@mkdir -p $(dir $@)
		$(hide) $< passwd --aid-header=$(PRIVATE_ANDROID_FS_HDR) $(PRIVATE_TARGET_FS_CONFIG_GEN) > $@

		system_android_filesystem_config :=
		endif

		ANDROID_FS_CONFIG_H :=

tools/fs_config/fs_config_generator.py

+73 −0

Original line number	Diff line number	Diff line
		@@ -1153,6 +1153,79 @@ class OEMAidGen(BaseGenerator):
		print OEMAidGen._GENERIC_DEFINE % (aid.identifier, aid.value)


		@generator('passwd')
		class PasswdGen(BaseGenerator):
		"""Generates the /etc/passwd file per man (5) passwd."""

		_GENERATED = ('#\n# THIS IS AN AUTOGENERATED FILE! DO NOT MODIFY!\n#')

		_FILE_COMMENT = '# Defined in file: \"%s\"'

		def __init__(self):

		self._old_file = None

		def add_opts(self, opt_group):

		opt_group.add_argument(
		'fsconfig', nargs='+', help='The list of fsconfig files to parse.')

		opt_group.add_argument(
		'--aid-header',
		required=True,
		help='An android_filesystem_config.h file'
		'to parse AIDs and OEM Ranges from')

		def __call__(self, args):

		hdr_parser = AIDHeaderParser(args['aid_header'])

		parser = FSConfigFileParser(args['fsconfig'], hdr_parser.oem_ranges)

		aids = parser.aids

		# nothing to do if no aids defined
		if len(aids) == 0:
		return

		print PasswdGen._GENERATED

		for aid in aids:
		self._print_aid_passwd_line(aid)

		def _print_aid_passwd_line(self, aid):
		"""
		Prints the aid to stdout in the passwd format.
		Internal use only.

		Colon delimited:
		login name, friendly name
		encrypted password (optional)
		uid (int)
		gid (int)
		User name or comment field
		home directory
		interpreter (optional)

		Args:
		aid (AID): The aid to print.
		"""
		if self._old_file != aid.found:
		self._old_file = aid.found
		print PasswdGen._FILE_COMMENT % aid.found

		logon = aid.friendly
		uid = aid.normalized_value
		if ':' in uid:
		sys.exit('Cannot specify delimiter character ":" in uid: "%s"' %
		uid)
		if ':' in logon:
		sys.exit('Cannot specify delimiter character ":" in logon: "%s"' %
		logon)

		print "%s::%s:%s::/:/system/bin/sh" % (logon, uid, uid)


		def main():
		"""Main entry point for execution."""