platform_system_sepolicy/private/lmkd.te

typeattribute lmkd coredomain;

init_daemon_domain(lmkd)

# Set sys.lmk.* properties.
set_prop(lmkd, system_lmk_prop)

# Set lmkd.* properties.
set_prop(lmkd, lmkd_prop)

allow lmkd fs_bpf:dir search;
allow lmkd fs_bpf:file read;
allow lmkd bpfloader:bpf map_read;

neverallow { domain -init -lmkd -vendor_init } lmkd_prop:property_service set;
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 lmkd 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(lmkd)`
Move system property rules to private public/property split is landed to selectively export public types to vendors. So rules happening within system should be in private. This introduces private/property.te and moves all allow and neverallow rules from any coredomains to system defiend properties. Bug: 150331497 Test: system/sepolicy/tools/build_policies.sh Change-Id: I0d929024ae9f4ae3830d4bf3d59e999febb22cbe Merged-In: I0d929024ae9f4ae3830d4bf3d59e999febb22cbe (cherry picked from commit 42c7d8966cc5f76c84c001c5af787cbfade736c8) 2020-03-04 09:20:35 +01:00
			`# Set sys.lmk.* properties.`
			`set_prop(lmkd, system_lmk_prop)`
Add lmkd. property policies lmkd.reinit property allows vendors to trigger lmkd reinitialization. Add lmkd_prop to support lmkd.* properties inlcuding lmkd.reinit. Bug: 155149944 Test: setprop lmkd.reinit 1 Signed-off-by: Suren Baghdasaryan <surenb@google.com> Change-Id: I6ba598bad7ebb40fd6f23de473f25f32e53c996d 2020-05-05 21:41:02 +02:00
			`# Set lmkd.* properties.`
			`set_prop(lmkd, lmkd_prop)`

sepolicy: Allow lmkd to access bpf map to read GPU allocation statistics Lmkd needs read access to /sys/fs/bpf/map_gpu_mem_gpu_mem_total_map BPF map to obtain information on GPU memory allocations. Bug: 189366037 Test: lmkd_unit_test Signed-off-by: Suren Baghdasaryan <surenb@google.com> Change-Id: I59ded4bc5ec97861e50b4fd1fdd6efb23990b79c 2021-05-28 03:22:41 +02:00			`allow lmkd fs_bpf:dir search;`
			`allow lmkd fs_bpf:file read;`
			`allow lmkd bpfloader:bpf map_read;`

Fix broken neverallow rules neverallow rules with allowlist should look like: neverallow { domain -allow1 -allow2 } ... Bug: 181744894 Test: m selinux_policy Test: pcregrep -M -r "neverallow\s+{(\s#.\s)\s+-" . Change-Id: Ibab72ccc1fbacb99b62fe127b4122e1ac22b938a 2021-03-10 02:42:23 +01:00			`neverallow { domain -init -lmkd -vendor_init } lmkd_prop:property_service set;`