platform_system_sepolicy/private/mediadrmserver.te

typeattribute mediadrmserver coredomain;

init_daemon_domain(mediadrmserver)

# allocate and use graphic buffers
hal_client_domain(mediadrmserver, hal_graphics_allocator)
auditallow mediadrmserver hal_graphics_allocator_server:binder call;

typeattribute mediadrmserver mlstrustedsubject;

net_domain(mediadrmserver)
binder_use(mediadrmserver)
binder_call(mediadrmserver, binderservicedomain)
binder_call(mediadrmserver, appdomain)
binder_service(mediadrmserver)
hal_client_domain(mediadrmserver, hal_drm)

add_service(mediadrmserver, mediadrmserver_service)
allow mediadrmserver mediaserver_service:service_manager find;
allow mediadrmserver mediametrics_service:service_manager find;
allow mediadrmserver processinfo_service:service_manager find;
allow mediadrmserver surfaceflinger_service:service_manager find;
allow mediadrmserver system_file:dir r_dir_perms;

# TODO(b/80317992): remove
binder_call(mediadrmserver, hal_omx_server)

###
### neverallow rules
###

# mediadrmserver should never execute any executable without a
# domain transition
neverallow mediadrmserver { file_type fs_type }:file execute_no_trans;

# do not allow privileged socket ioctl commands
neverallowxperm mediadrmserver domain:{ rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls;
Vendor domains must not use Binder 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 2017-03-23 22:27:32 +01:00			`typeattribute mediadrmserver coredomain;`

Split general policy into public and private components. Divide policy into public and private components. This is the first step in splitting the policy creation for platform and non-platform policies. The policy in the public directory will be exported for use in non-platform policy creation. Backwards compatibility with it will be achieved by converting the exported policy into attribute-based policy when included as part of the non-platform policy and a mapping file will be maintained to be included with the platform policy that maps exported attributes of previous versions to the current platform version. Eventually we would like to create a clear interface between the platform and non-platform device components so that the exported policy, and the need for attributes is minimal. For now, almost all types and avrules are left in public. Test: Tested by building policy and running on device. Change-Id: Idef796c9ec169259787c3f9d8f423edf4ce27f8c 2016-07-22 22:13:11 +02:00			`init_daemon_domain(mediadrmserver)`
update sepolicy for gralloc HAL the list to update was determined by looking at who currently has access to surfaceflinger for ipc and FD use. Test: try some media stuff Bug: 36333314 Change-Id: I474d0c44f8cb3868aad7a64e5a3640cf212d264d 2017-03-30 04:08:34 +02:00
			`# allocate and use graphic buffers`
			`hal_client_domain(mediadrmserver, hal_graphics_allocator)`
			`auditallow mediadrmserver hal_graphics_allocator_server:binder call;`

Minimize public policy 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 2024-03-27 09:18:41 +01:00			`typeattribute mediadrmserver mlstrustedsubject;`

			`net_domain(mediadrmserver)`
			`binder_use(mediadrmserver)`
			`binder_call(mediadrmserver, binderservicedomain)`
			`binder_call(mediadrmserver, appdomain)`
			`binder_service(mediadrmserver)`
			`hal_client_domain(mediadrmserver, hal_drm)`

			`add_service(mediadrmserver, mediadrmserver_service)`
			`allow mediadrmserver mediaserver_service:service_manager find;`
			`allow mediadrmserver mediametrics_service:service_manager find;`
			`allow mediadrmserver processinfo_service:service_manager find;`
			`allow mediadrmserver surfaceflinger_service:service_manager find;`
			`allow mediadrmserver system_file:dir r_dir_perms;`

			`# TODO(b/80317992): remove`
			`binder_call(mediadrmserver, hal_omx_server)`

			`###`
			`### neverallow rules`
			`###`

			`# mediadrmserver should never execute any executable without a`
			`# domain transition`
			`neverallow mediadrmserver { file_type fs_type }:file execute_no_trans;`

			`# do not allow privileged socket ioctl commands`
			`neverallowxperm mediadrmserver domain:{ rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls;`