f5446eb148
On PRODUCT_FULL_TREBLE devices, non-vendor domains (except vendor
apps) are not permitted to use Binder. This commit thus:
* groups non-vendor domains using the new "coredomain" attribute,
* adds neverallow rules restricting Binder use to coredomain and
appdomain only, and
* temporarily exempts the domains which are currently violating this
rule from this restriction. These domains are grouped using the new
"binder_in_vendor_violators" attribute. The attribute is needed
because the types corresponding to violators are not exposed to the
public policy where the neverallow rules are.
Test: mmm system/sepolicy
Test: Device boots, no new denials
Test: In Chrome, navigate to ip6.me, play a YouTube video
Test: YouTube: play a video
Test: Netflix: play a movie
Test: Google Camera: take a photo, take an HDR+ photo, record video with
sound, record slow motion video with sound. Confirm videos play
back fine and with sound.
Bug: 35870313
Change-Id: I0cd1a80b60bcbde358ce0f7a47b90f4435a45c95
106 lines
3.4 KiB
Text
106 lines
3.4 KiB
Text
# surfaceflinger - display compositor service
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typeattribute surfaceflinger coredomain;
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type surfaceflinger_exec, exec_type, file_type;
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init_daemon_domain(surfaceflinger)
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typeattribute surfaceflinger mlstrustedsubject;
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read_runtime_log_tags(surfaceflinger)
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# Perform HwBinder IPC.
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hwbinder_use(surfaceflinger)
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hal_client_domain(surfaceflinger, hal_graphics_allocator)
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binder_call(surfaceflinger, hal_graphics_composer)
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hal_client_domain(surfaceflinger, hal_graphics_composer)
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binder_call(surfaceflinger, hal_configstore)
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hal_client_domain(surfaceflinger, hal_configstore)
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# Perform Binder IPC.
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binder_use(surfaceflinger)
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binder_call(surfaceflinger, binderservicedomain)
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binder_call(surfaceflinger, appdomain)
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binder_call(surfaceflinger, bootanim)
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binder_service(surfaceflinger)
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# Binder IPC to bu, presently runs in adbd domain.
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binder_call(surfaceflinger, adbd)
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# Read /proc/pid files for Binder clients.
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r_dir_file(surfaceflinger, binderservicedomain)
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r_dir_file(surfaceflinger, appdomain)
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# Access the GPU.
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allow surfaceflinger gpu_device:chr_file rw_file_perms;
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# Access /dev/graphics/fb0.
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allow surfaceflinger graphics_device:dir search;
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allow surfaceflinger graphics_device:chr_file rw_file_perms;
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# Access /dev/video1.
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allow surfaceflinger video_device:dir r_dir_perms;
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allow surfaceflinger video_device:chr_file rw_file_perms;
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# Create and use netlink kobject uevent sockets.
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allow surfaceflinger self:netlink_kobject_uevent_socket create_socket_perms_no_ioctl;
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# Set properties.
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set_prop(surfaceflinger, system_prop)
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set_prop(surfaceflinger, ctl_bootanim_prop)
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# Use open files supplied by an app.
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allow surfaceflinger appdomain:fd use;
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allow surfaceflinger app_data_file:file { read write };
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# Allow a dumpstate triggered screenshot
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binder_call(surfaceflinger, dumpstate)
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binder_call(surfaceflinger, shell)
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r_dir_file(surfaceflinger, dumpstate)
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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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allow surfaceflinger tee:unix_stream_socket connectto;
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allow surfaceflinger tee_device:chr_file rw_file_perms;
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# media.player service
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add_service(surfaceflinger, gpu_service)
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# do not use add_service() as hal_graphics_composer_default may be the
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# provider as well
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#add_service(surfaceflinger, surfaceflinger_service)
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allow surfaceflinger surfaceflinger_service:service_manager { add find };
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allow surfaceflinger mediaserver_service:service_manager find;
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allow surfaceflinger permission_service:service_manager find;
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allow surfaceflinger power_service:service_manager find;
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allow surfaceflinger vr_manager_service:service_manager find;
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allow surfaceflinger window_service:service_manager find;
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# allow self to set SCHED_FIFO
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allow surfaceflinger self:capability sys_nice;
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allow surfaceflinger proc_meminfo:file r_file_perms;
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r_dir_file(surfaceflinger, cgroup)
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r_dir_file(surfaceflinger, sysfs_type)
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r_dir_file(surfaceflinger, system_file)
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allow surfaceflinger tmpfs:dir r_dir_perms;
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allow surfaceflinger system_server:fd use;
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allow surfaceflinger ion_device:chr_file r_file_perms;
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# pdx IPC
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pdx_server(surfaceflinger)
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use_pdx(surfaceflinger, bufferhubd)
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use_pdx(surfaceflinger, performanced)
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use_pdx(surfaceflinger, sensord)
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###
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### Neverallow rules
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###
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### surfaceflinger should NEVER do any of this
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# Do not allow accessing SDcard files as unsafe ejection could
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# cause the kernel to kill the process.
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neverallow surfaceflinger sdcard_type:file rw_file_perms;
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