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    c9036fb1
    Grant platform apps access to /mnt/media_rw. · c9036fb1
    Jeff Sharkey authored
    Raw physical storage devices are mounted by vold under /mnt/media_rw
    and then wrapped in a FUSE daemon that presents them under /storage.
    
    Normal apps only have access through /storage, but platform apps
    (such as ExternalStorageProvider) often bypass the FUSE daemon for
    performance reasons.
    
    avc: denied { search } for pid=6411 comm="Binder_1" name="media_rw" dev="tmpfs" ino=6666 scontext=u:r:platform_app:s0:c512,c768 tcontext=u:object_r:mnt_media_rw_file:s0 tclass=dir
    avc: denied { write } for pid=3701 comm="Binder_2" name="PANO_20131016_162457.jpg" dev="sda1" ino=127 scontext=u:r:platform_app:s0:c522,c768 tcontext=u:object_r:vfat:s0 tclass=file
    
    Bug: 19993667
    Change-Id: I66df236eade3ca25a10749dd43d173ff4628cfad
    c9036fb1
    History
    Grant platform apps access to /mnt/media_rw.
    Jeff Sharkey authored
    Raw physical storage devices are mounted by vold under /mnt/media_rw
    and then wrapped in a FUSE daemon that presents them under /storage.
    
    Normal apps only have access through /storage, but platform apps
    (such as ExternalStorageProvider) often bypass the FUSE daemon for
    performance reasons.
    
    avc: denied { search } for pid=6411 comm="Binder_1" name="media_rw" dev="tmpfs" ino=6666 scontext=u:r:platform_app:s0:c512,c768 tcontext=u:object_r:mnt_media_rw_file:s0 tclass=dir
    avc: denied { write } for pid=3701 comm="Binder_2" name="PANO_20131016_162457.jpg" dev="sda1" ino=127 scontext=u:r:platform_app:s0:c522,c768 tcontext=u:object_r:vfat:s0 tclass=file
    
    Bug: 19993667
    Change-Id: I66df236eade3ca25a10749dd43d173ff4628cfad
platform_app.te 1.74 KiB
###
### Apps signed with the platform key.
###

type platform_app, domain;
app_domain(platform_app)
# Access the network.
net_domain(platform_app)
# Access bluetooth.
bluetooth_domain(platform_app)
# Read from /data/local/tmp or /data/data/com.android.shell.
allow platform_app shell_data_file:dir search;
allow platform_app shell_data_file:file { open getattr read };
# Populate /data/app/vmdl*.tmp, /data/app-private/vmdl*.tmp files
# created by system server.
allow platform_app { apk_tmp_file apk_private_tmp_file }:dir rw_dir_perms;
allow platform_app { apk_tmp_file apk_private_tmp_file }:file rw_file_perms;
allow platform_app apk_private_data_file:dir search;
# ASEC
allow platform_app asec_apk_file:dir create_dir_perms;
allow platform_app asec_apk_file:file create_file_perms;

# Access to /data/media.
allow platform_app media_rw_data_file:dir create_dir_perms;
allow platform_app media_rw_data_file:file create_file_perms;

# Write to /cache.
allow platform_app cache_file:dir create_dir_perms;
allow platform_app cache_file:file create_file_perms;

# Direct access to vold-mounted storage under /mnt/media_rw
# This is a performance optimization that allows platform apps to bypass the FUSE layer
allow platform_app mnt_media_rw_file:dir r_dir_perms;
allow platform_app vfat:dir create_dir_perms;
allow platform_app vfat:file create_file_perms;

allow platform_app drmserver_service:service_manager find;
allow platform_app mediaserver_service:service_manager find;
allow platform_app persistent_data_block_service:service_manager find;
allow platform_app radio_service:service_manager find;
allow platform_app surfaceflinger_service:service_manager find;
allow platform_app app_api_service:service_manager find;
allow platform_app system_api_service:service_manager find;