platform_system_sepolicy/private/logd.te
Pirama Arumuga Nainar b65824642b In native coverage builds, allow all domains to access /data/misc/trace
Bug: http://b/135139675

Coverage files are written to /data/misc/trace (governed by the
method_trace_data_file selinux type).  Allow all domains to access
(create directories, access files) this directory when native coverage
is enabled (by setting NATIVE_COVERAGE to true) in an userdebug or eng
build.

Also relax neverallow constraints to allow access to
method_trace_data_file for native coverage builds.

Test: Build 32-bit cuttlefish with coverage:
          m NATIVE_COVERAGE=true COVERAGE_PATHS="*"
      and verify that there are no selinux denials in kernel log and
      logcat.

Change-Id: I3fe7c77612854b9de7de7a0ddd5cbf44a2f5c21e
(cherry picked from commit ce9c0c5a5f)
2019-06-19 16:27:17 -07:00

38 lines
820 B
Text

typeattribute logd coredomain;
init_daemon_domain(logd)
# 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;