3fbc536dfd
Addresses denials such as:
avc: denied { read } for pid=5114 comm="le.android.talk" path="/data/data/com.android.providers.telephony/app_parts/PART_1394223232515_recording88476874.amr" dev="mmcblk0p23" ino=64522 scontext=u:r:mediaserver:s0 tcontext=u:object_r:radio_data_file:s0 tclass=file
avc: denied { getattr } for pid=29199 comm="Binder_4" path="/data/data/com.android.providers.telephony/app_parts/PART_1394223232515_recording88476874.amr" dev="mmcblk0p23" ino=64522 scontext=u:r:mediaserver:s0 tcontext=u:object_r:radio_data_file:s0 tclass=file
avc: denied { read } for pid=29199 comm="Binder_4" path="/data/data/com.android.providers.telephony/app_parts/PART_1394223232515_recording88476874.amr" dev="mmcblk0p23" ino=64522 scontext=u:r:drmserver:s0 tcontext=u:object_r:radio_data_file:s0 tclass=file
avc: denied { getattr } for pid=9338 comm="MediaLoader" path="/data/data/com.android.providers.telephony/app_parts/PART_1394848620510_image.jpg" dev="mmcblk0p28" ino=287374 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:radio_data_file:s0 tclass=file
avc: denied { read } for pid=9896 comm="Binder_7" path="/data/data/com.android.providers.telephony/app_parts/PART_1394594346187_image.jpg" dev="mmcblk0p28" ino=287522 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:radio_data_file:s0 tclass=file
This does not allow write denials such as:
avc: denied { write } for pid=1728 comm="Binder_4" path="/data/data/com.android.providers.telephony/app_parts/PART_1394818738798_image.jpg" dev="mmcblk0p28" ino=82279 scontext=u:r:untrusted_app:s0 tcontext=u:object_r:radio_data_file:s0 tclass=file
Need to understand whether write access is in fact required.
Change-Id: I7693d16cb4f9855909d790d3f16f8bf281764468
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
77 lines
2.7 KiB
Text
77 lines
2.7 KiB
Text
# mediaserver - multimedia daemon
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type mediaserver, domain;
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permissive_or_unconfined(mediaserver)
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type mediaserver_exec, exec_type, file_type;
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typeattribute mediaserver mlstrustedsubject;
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net_domain(mediaserver)
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init_daemon_domain(mediaserver)
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unix_socket_connect(mediaserver, property, init)
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r_dir_file(mediaserver, sdcard_type)
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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 self:process execmem;
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allow mediaserver kernel:system module_request;
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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:dir search;
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allow mediaserver app_data_file:file rw_file_perms;
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allow mediaserver sdcard_type:file write;
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allow mediaserver { gpu_device graphics_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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allow mediaserver audio_device:dir r_dir_perms;
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allow mediaserver tee_device:chr_file rw_file_perms;
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allow mediaserver audio_prop:property_service set;
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# Access audio devices at all.
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allow mediaserver audio_device:chr_file rw_file_perms;
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# XXX Label with a specific type?
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allow mediaserver sysfs:file rw_file_perms;
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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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# 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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# Access camera device.
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allow mediaserver camera_device:chr_file rw_file_perms;
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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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# Camera data
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r_dir_file(mediaserver, camera_data_file)
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r_dir_file(mediaserver, media_rw_data_file)
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# Grant access to audio files to mediaserver
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allow mediaserver audio_data_file:dir ra_dir_perms;
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allow mediaserver audio_data_file:file create_file_perms;
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# Read/[write] to /proc/net/xt_qtaguid/ctrl and /dev/xt_qtaguid
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allow mediaserver qtaguid_proc:file rw_file_perms;
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allow mediaserver qtaguid_device:chr_file r_file_perms;
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# Allow abstract socket connection
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allow mediaserver rild:unix_stream_socket { connectto read write setopt };
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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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# Connect to tee service.
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allow mediaserver tee:unix_stream_socket connectto;
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