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
92 lines
3.6 KiB
Text
92 lines
3.6 KiB
Text
typeattribute cameraserver camera_service_server;
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typeattribute cameraserver coredomain;
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init_daemon_domain(cameraserver)
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tmpfs_domain(cameraserver)
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allow cameraserver gpu_device:chr_file rw_file_perms;
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allow cameraserver gpu_device:dir r_dir_perms;
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allow cameraserver virtual_camera:binder call;
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binder_use(cameraserver)
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binder_call(cameraserver, binderservicedomain)
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binder_call(cameraserver, appdomain)
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binder_service(cameraserver)
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hal_client_domain(cameraserver, hal_camera)
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hal_client_domain(cameraserver, hal_graphics_allocator)
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allow cameraserver ion_device:chr_file rw_file_perms;
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allow cameraserver dmabuf_system_heap_device:chr_file r_file_perms;
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# Talk with graphics composer fences
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allow cameraserver hal_graphics_composer:fd use;
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add_service(cameraserver, cameraserver_service)
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add_service(cameraserver, fwk_camera_service)
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add_hwservice(cameraserver, fwk_camera_hwservice)
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allow cameraserver activity_service:service_manager find;
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allow cameraserver appops_service:service_manager find;
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allow cameraserver audioserver_service:service_manager find;
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allow cameraserver batterystats_service:service_manager find;
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allow cameraserver cameraproxy_service:service_manager find;
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allow cameraserver mediaserver_service:service_manager find;
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allow cameraserver package_native_service:service_manager find;
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allow cameraserver permission_checker_service:service_manager find;
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allow cameraserver processinfo_service:service_manager find;
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allow cameraserver scheduling_policy_service:service_manager find;
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allow cameraserver sensor_privacy_service:service_manager find;
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allow cameraserver surfaceflinger_service:service_manager find;
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allow cameraserver hidl_token_hwservice:hwservice_manager find;
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allow cameraserver hal_camera_service:service_manager find;
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allow cameraserver virtual_camera_service:service_manager find;
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# Allow to talk with surfaceflinger through unix stream socket
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allow cameraserver surfaceflinger:unix_stream_socket { read write };
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# Allow shell commands from ADB for CTS testing/dumping
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allow cameraserver adbd:fd use;
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allow cameraserver adbd:unix_stream_socket { read write };
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allow cameraserver shell:fd use;
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allow cameraserver shell:unix_stream_socket { read write };
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allow cameraserver shell:fifo_file { read write };
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# allow self to set SCHED_FIFO
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allow cameraserver self:global_capability_class_set sys_nice;
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# Allow to talk with media codec
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allow cameraserver mediametrics_service:service_manager find;
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hal_client_domain(cameraserver, hal_codec2)
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hal_client_domain(cameraserver, hal_omx)
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hal_client_domain(cameraserver, hal_allocator)
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# Allow shell commands from ADB for CTS testing/dumping
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userdebug_or_eng(`
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allow cameraserver su:fd use;
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allow cameraserver su:fifo_file { read write };
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allow cameraserver su:unix_stream_socket { read write };
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')
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###
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### neverallow rules
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###
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# cameraserver should never execute any executable without a
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# domain transition
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neverallow cameraserver { file_type fs_type }:file execute_no_trans;
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# The goal of the mediaserver split is to place media processing code into
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# restrictive sandboxes with limited responsibilities and thus limited
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# permissions. Example: Audioserver is only responsible for controlling audio
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# hardware and processing audio content. Cameraserver does the same for camera
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# hardware/content. Etc.
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#
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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 cameraserver domain:{ udp_socket rawip_socket } *;
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neverallow cameraserver { domain userdebug_or_eng(`-su') }:tcp_socket *;
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