platform_system_sepolicy/prebuilts/api/31.0/private/logd.te
Inseob Kim 08d4c8fa6e Add fake 31.0 prebuilt
This commit adds fake 31.0 prebuilt. The prebuilt is based on AOSP
policy, but slightly modified so the set of types and attributes is a
subset of real 31.0 prebuilt (sc-dev policy).

Steps taken to make the fake prebuilt:

1) build plat_sepolicy.cil both on AOSP and sc-dev, with lunch target
aosp_arm64-eng.
2) diff both outputs to find out which types and attributes don't exist.
3) remove all relevant files and statements.

As a result, the following types are removed.

artd
artd_exec
artd_service
power_stats_service
transformer_service
virtualizationservice
virtualizationservice_data_file
virtualizationservice_exec

Bug: 189161483
Test: N/A, will do after adding 31.0 mapping files.
Change-Id: Ia957fc32b1838dae730d9dd7bd917d684d4a24cf
Merged-In: Ia4ea2999f4bc8ae80f13e51d99fba3e98e293447
2021-06-15 12:08:00 +00:00

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897 B
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typeattribute logd coredomain;
init_daemon_domain(logd)
# Access device logging gating property
get_prop(logd, device_logging_prop)
# logd is not allowed to write anywhere other than /data/misc/logd, and then
# only on userdebug or eng builds
neverallow logd {
file_type
-runtime_event_log_tags_file
userdebug_or_eng(`-coredump_file -misc_logd_file')
with_native_coverage(`-method_trace_data_file')
}:file { create write append };
# protect the event-log-tags file
neverallow {
domain
-appdomain # covered below
-bootstat
-dumpstate
-init
-logd
userdebug_or_eng(`-logpersist')
-servicemanager
-system_server
-surfaceflinger
-zygote
} runtime_event_log_tags_file:file no_rw_file_perms;
neverallow {
appdomain
-bluetooth
-platform_app
-priv_app
-radio
-shell
userdebug_or_eng(`-su')
-system_app
} runtime_event_log_tags_file:file no_rw_file_perms;