platform_system_sepolicy/private/idmap.te

typeattribute idmap coredomain;

init_daemon_domain(idmap)

# Allow read + write access to /data/resource-cache
allow idmap resourcecache_data_file:file create_file_perms;
allow idmap resourcecache_data_file:dir rw_dir_perms;

# Open and read from target and overlay apk files passed by argument.
allow idmap apk_data_file:file r_file_perms;
allow idmap apk_data_file:dir search;

# Allow /data/app/vmdl*.tmp, /data/app-private/vmdl*.tmp files
allow idmap { apk_tmp_file apk_private_tmp_file }:file r_file_perms;
allow idmap { apk_tmp_file apk_private_tmp_file }:dir search;

# Allow apps access to /vendor/app
r_dir_file(idmap, vendor_app_file)

# Allow apps access to /vendor/overlay
r_dir_file(idmap, vendor_overlay_file)

# Allow the idmap2d binary to register as a service and communicate via AIDL
binder_use(idmap)
binder_service(idmap)
add_service(idmap, idmap_service)
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 idmap coredomain;`
Add idmap2 and idmap2d Bug: 78815803 Test: builds, boots Test: manual: adb shell idmap2 create ... Test: manual: adb shell ps \| grep -e idmap2d Change-Id: I60852e15d99329896ff9de6559d1e7cd1c67e33d 2018-06-15 08:08:19 +02:00
			`init_daemon_domain(idmap)`
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
			`# Allow read + write access to /data/resource-cache`
			`allow idmap resourcecache_data_file:file create_file_perms;`
			`allow idmap resourcecache_data_file:dir rw_dir_perms;`

			`# Open and read from target and overlay apk files passed by argument.`
			`allow idmap apk_data_file:file r_file_perms;`
			`allow idmap apk_data_file:dir search;`

			`# Allow /data/app/vmdl.tmp, /data/app-private/vmdl.tmp files`
			`allow idmap { apk_tmp_file apk_private_tmp_file }:file r_file_perms;`
			`allow idmap { apk_tmp_file apk_private_tmp_file }:dir search;`

			`# Allow apps access to /vendor/app`
			`r_dir_file(idmap, vendor_app_file)`

			`# Allow apps access to /vendor/overlay`
			`r_dir_file(idmap, vendor_overlay_file)`

			`# Allow the idmap2d binary to register as a service and communicate via AIDL`
			`binder_use(idmap)`
			`binder_service(idmap)`
			`add_service(idmap, idmap_service)`