9686cbcdbf
The following HAL methods use file descriptors to write dump
info comprising audioflinger debug dump:
IDevice.debugDump
IEffectsFactory.debugDump
IStream.debugDump
Bug: 37993476
Test: check contents of media.audio_flinger section in
a bugreport captured on Pixel device
Change-Id: I77d347c019ac93c3ba0d54ce50f0fdc243b04685
39 lines
1.3 KiB
Text
39 lines
1.3 KiB
Text
# HwBinder IPC from client to server, and callbacks
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binder_call(hal_audio_client, hal_audio_server)
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binder_call(hal_audio_server, hal_audio_client)
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allow hal_audio ion_device:chr_file r_file_perms;
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userdebug_or_eng(`
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# used for pcm capture for debug.
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allow hal_audio audiohal_data_file:dir create_dir_perms;
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allow hal_audio audiohal_data_file:file create_file_perms;
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')
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r_dir_file(hal_audio, proc)
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allow hal_audio audio_device:dir r_dir_perms;
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allow hal_audio audio_device:chr_file rw_file_perms;
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# Needed to provide debug dump output via dumpsys' pipes.
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allow hal_audio shell:fd use;
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allow hal_audio shell:fifo_file write;
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allow hal_audio dumpstate:fd use;
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allow hal_audio dumpstate:fifo_file write;
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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(hal_audio, bluetooth, bluetooth)
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###
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### neverallow rules
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###
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# Should never execute any executable without a domain transition
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neverallow hal_audio { file_type fs_type }:file execute_no_trans;
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# Should never need network access.
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# Disallow network sockets.
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neverallow hal_audio domain:{ tcp_socket udp_socket rawip_socket } *;
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# Only audio HAL may directly access the audio hardware
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neverallow { halserverdomain -hal_audio_server } audio_device:chr_file *;
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