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Commit d7104bca authored by William Roberts's avatar William Roberts Committed by Dan Albert
Browse files

fs_config: android_id header generator 



Implement an android_id generator that takes the data
acquired from parsing private/android_filesystem_config.h
and generates the android_id friendly name to uid mapping
for consumption in Bionic.

Test: That ls, ps, mkdir, chown, chgrp and services for built
in names work.
Change-Id: I1e55a401be0fca0ad162f8dc1e072e6afde7b927
Signed-off-by: default avatarWilliam Roberts <william.c.roberts@intel.com>
parent 64edf5bb

tools/fs_config/fs_config_generator.py

+56 −1
Original line number Diff line number Diff line
@@ -16,6 +16,9 @@ import re 
import sys

import textwrap



# Keep the tool in one file to make it easy to run.

# pylint: disable=too-many-lines





# Lowercase generator used to be inline with @staticmethod.

class generator(object):  # pylint: disable=invalid-name
@@ -360,7 +363,7 @@ class AIDHeaderParser(object): 
        Returns:

            A list of AID() objects.

        """

        return self._aid_name_to_value.values()

        return self._aid_name_to_value



    @staticmethod

    def _convert_lst_to_tup(name, lst):
@@ -942,6 +945,58 @@ class FSConfigGen(BaseGenerator): 
            print FSConfigGen._CLOSE_FILE_STRUCT





@generator('aidarray')

class AIDArrayGen(BaseGenerator):

    """Generates the android_id static array."""



    _GENERATED = ('/*\n'

                  ' * THIS IS AN AUTOGENERATED FILE! DO NOT MODIFY!\n'

                  ' */')



    _INCLUDE = '#include <private/android_filesystem_config.h>'



    _STRUCT_FS_CONFIG = textwrap.dedent("""

                         struct android_id_info {

                             const char *name;

                             unsigned aid;

                         };""")



    _OPEN_ID_ARRAY = 'static const struct android_id_info android_ids[] = {'



    _ID_ENTRY = '    { "%s", %s },'



    _CLOSE_FILE_STRUCT = '};'



    _COUNT = ('#define android_id_count \\\n'

              '    (sizeof(android_ids) / sizeof(android_ids[0]))')



    def add_opts(self, opt_group):



        opt_group.add_argument(

            'hdrfile', help='The android_filesystem_config.h'

            'file to parse')



    def __call__(self, args):



        hdr = AIDHeaderParser(args['hdrfile'])



        print AIDArrayGen._GENERATED

        print

        print AIDArrayGen._INCLUDE

        print

        print AIDArrayGen._STRUCT_FS_CONFIG

        print

        print AIDArrayGen._OPEN_ID_ARRAY



        for name, aid in hdr.aids.iteritems():

            print AIDArrayGen._ID_ENTRY % (name, aid.identifier)



        print AIDArrayGen._CLOSE_FILE_STRUCT

        print

        print AIDArrayGen._COUNT

        print





def main():

    """Main entry point for execution."""