41a2abfc0d
This is being done in preparation for the migration from ashmem to
memfd. In order for tmpfs objects to be usable across the Treble
boundary, they need to be declared in public policy whereas, they're
currently all declared in private policy as part of the
tmpfs_domain() macro. Remove the type declaration from the
macro, and remove tmpfs_domain() from the init_daemon_domain() macro
to avoid having to declare the *_tmpfs types for all init launched
domains. tmpfs is mostly used by apps and the media frameworks.
Bug: 122854450
Test: Boot Taimen and blueline. Watch videos, make phone calls, browse
internet, send text, install angry birds...play angry birds, keep
playing angry birds...
Change-Id: I20a47d2bb22e61b16187015c7bc7ca10accf6358
Merged-In: I20a47d2bb22e61b16187015c7bc7ca10accf6358
(cherry picked from commit e16fb9109c)
141 lines
4.8 KiB
Text
141 lines
4.8 KiB
Text
# mediaserver - multimedia daemon
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type mediaserver, domain;
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type mediaserver_exec, system_file_type, exec_type, file_type;
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type mediaserver_tmpfs, file_type;
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typeattribute mediaserver mlstrustedsubject;
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net_domain(mediaserver)
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r_dir_file(mediaserver, sdcard_type)
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r_dir_file(mediaserver, cgroup)
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# stat /proc/self
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allow mediaserver proc:lnk_file getattr;
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# open /vendor/lib/mediadrm
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allow mediaserver system_file:dir r_dir_perms;
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userdebug_or_eng(`
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# ptrace to processes in the same domain for memory leak detection
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allow mediaserver self:process ptrace;
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')
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binder_use(mediaserver)
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binder_call(mediaserver, binderservicedomain)
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binder_call(mediaserver, appdomain)
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binder_service(mediaserver)
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allow mediaserver media_data_file:dir create_dir_perms;
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allow mediaserver media_data_file:file create_file_perms;
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allow mediaserver { app_data_file privapp_data_file }:file { append getattr ioctl lock map read write };
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allow mediaserver sdcard_type:file write;
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allow mediaserver gpu_device:chr_file rw_file_perms;
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allow mediaserver video_device:dir r_dir_perms;
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allow mediaserver video_device:chr_file rw_file_perms;
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set_prop(mediaserver, audio_prop)
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# Read resources from open apk files passed over Binder.
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allow mediaserver apk_data_file:file { read getattr };
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allow mediaserver asec_apk_file:file { read getattr };
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allow mediaserver ringtone_file:file { read getattr };
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# Read /data/data/com.android.providers.telephony files passed over Binder.
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allow mediaserver radio_data_file:file { read getattr };
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# Use pipes passed over Binder from app domains.
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allow mediaserver appdomain:fifo_file { getattr read write };
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allow mediaserver rpmsg_device:chr_file rw_file_perms;
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# Inter System processes communicate over named pipe (FIFO)
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allow mediaserver system_server:fifo_file r_file_perms;
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r_dir_file(mediaserver, media_rw_data_file)
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# Grant access to read files on appfuse.
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allow mediaserver app_fuse_file:file { read getattr };
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# Needed on some devices for playing DRM protected content,
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# but seems expected and appropriate for all devices.
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unix_socket_connect(mediaserver, drmserver, drmserver)
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# Needed on some devices for playing audio on paired BT device,
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# but seems appropriate for all devices.
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unix_socket_connect(mediaserver, bluetooth, bluetooth)
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add_service(mediaserver, mediaserver_service)
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allow mediaserver activity_service:service_manager find;
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allow mediaserver appops_service:service_manager find;
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allow mediaserver audioserver_service:service_manager find;
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allow mediaserver cameraserver_service:service_manager find;
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allow mediaserver batterystats_service:service_manager find;
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allow mediaserver drmserver_service:service_manager find;
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allow mediaserver mediaextractor_service:service_manager find;
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allow mediaserver mediacodec_service:service_manager find;
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allow mediaserver mediametrics_service:service_manager find;
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allow mediaserver media_session_service:service_manager find;
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allow mediaserver permission_service:service_manager find;
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allow mediaserver power_service:service_manager find;
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allow mediaserver processinfo_service:service_manager find;
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allow mediaserver scheduling_policy_service:service_manager find;
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allow mediaserver surfaceflinger_service:service_manager find;
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# for ModDrm/MediaPlayer
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allow mediaserver mediadrmserver_service:service_manager find;
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# For interfacing with OMX HAL
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allow mediaserver hidl_token_hwservice:hwservice_manager find;
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# /oem access
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allow mediaserver oemfs:dir search;
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allow mediaserver oemfs:file r_file_perms;
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# /vendor apk access
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allow mediaserver vendor_app_file:file { read map getattr };
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use_drmservice(mediaserver)
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allow mediaserver drmserver:drmservice {
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consumeRights
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setPlaybackStatus
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openDecryptSession
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closeDecryptSession
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initializeDecryptUnit
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decrypt
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finalizeDecryptUnit
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pread
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};
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# only allow unprivileged socket ioctl commands
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allowxperm mediaserver self:{ rawip_socket tcp_socket udp_socket }
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ioctl { unpriv_sock_ioctls unpriv_tty_ioctls };
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# Access to /data/media.
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# This should be removed if sdcardfs is modified to alter the secontext for its
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# accesses to the underlying FS.
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allow mediaserver media_rw_data_file:dir create_dir_perms;
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allow mediaserver media_rw_data_file:file create_file_perms;
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# Access to media in /data/preloads
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allow mediaserver preloads_media_file:file { getattr read ioctl };
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allow mediaserver ion_device:chr_file r_file_perms;
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allow mediaserver hal_graphics_allocator:fd use;
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allow mediaserver hal_graphics_composer:fd use;
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allow mediaserver hal_camera:fd use;
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allow mediaserver system_server:fd use;
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hal_client_domain(mediaserver, hal_allocator)
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###
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### neverallow rules
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###
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# mediaserver should never execute any executable without a
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# domain transition
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neverallow mediaserver { file_type fs_type }:file execute_no_trans;
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# do not allow privileged socket ioctl commands
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neverallowxperm mediaserver domain:{ rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls;
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