75806ef3c5
Ideally, public should only contain APIs (types / attributes) for
vendor. The other statements like allow/neverallow/typeattributes are
regarded as implementation detail for platform and should be in private.
Bug: 232023812
Test: m selinux_policy
Test: diff <(git diff --staged | grep "^-" | cut -b2- | sort) \
<(git diff --staged | grep "^+" | cut -b2- | sort)
Test: remove comments on plat_sepolicy.cil, replace base_typeattr_*
to base_typeattr and then compare old and new plat_sepolicy.cil
Change-Id: I5e7d2da4465ab0216de6bacdf03077d37f6ffe12
41 lines
1.4 KiB
Text
41 lines
1.4 KiB
Text
typeattribute mediaswcodec coredomain;
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init_daemon_domain(mediaswcodec)
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get_prop(mediaswcodec, device_config_media_native_prop)
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get_prop(mediaswcodec, device_config_swcodec_native_prop)
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hal_server_domain(mediaswcodec, hal_codec2)
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# mediaswcodec may use an input surface from a different Codec2 service or an
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# OMX service
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hal_client_domain(mediaswcodec, hal_codec2)
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hal_client_domain(mediaswcodec, hal_omx)
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hal_client_domain(mediaswcodec, hal_allocator)
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hal_client_domain(mediaswcodec, hal_graphics_allocator)
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# get aac_drc_* properties
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get_prop(mediaswcodec, aac_drc_prop)
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crash_dump_fallback(mediaswcodec)
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allow mediaswcodec dmabuf_system_heap_device:chr_file r_file_perms;
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allow mediaswcodec dmabuf_system_secure_heap_device:chr_file r_file_perms;
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allow mediaswcodec gpu_device:chr_file rw_file_perms;
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allow mediaswcodec gpu_device:dir r_dir_perms;
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###
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### Neverallow rules
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###
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# mediaswcodec_server should never execute any executable without a
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# domain transition
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neverallow mediaswcodec { file_type fs_type }:file execute_no_trans;
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# Media processing code is inherently risky and thus should have limited
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# permissions and be isolated from the rest of the system and network.
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# Lengthier explanation here:
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# https://android-developers.googleblog.com/2016/05/hardening-media-stack.html
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neverallow mediaswcodec domain:{ udp_socket rawip_socket } *;
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neverallow mediaswcodec { domain userdebug_or_eng(`-su') }:tcp_socket *;
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