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# Domain for atrace process.
# It is spawned either by traced_probes or by init for the boottrace service.
type atrace_exec, exec_type, file_type, system_file_type;
# boottrace services uses /data/misc/boottrace/categories
allow atrace boottrace_data_file:dir search;
allow atrace boottrace_data_file:file r_file_perms;
# Allow atrace to access tracefs.
allow atrace debugfs_tracing:dir r_dir_perms;
allow atrace debugfs_tracing:file rw_file_perms;
allow atrace debugfs_trace_marker:file getattr;
# Allow atrace to write data when a pipe is used for stdout/stderr
# This is used by Perfetto to capture the output on error in atrace.
allow atrace traced_probes:fd use;
allow atrace traced_probes:fifo_file write;
# atrace sets debug.atrace.* properties
set_prop(atrace, debug_prop)
# atrace pokes all the binder-enabled processes at startup with a
# SYSPROPS_TRANSACTION, to tell them to reload the debug.atrace.* properties.
# Allow discovery of binder services.
allow atrace {
service_manager_type
-apex_service
-dnsresolver_service
-dumpstate_service
-incident_service
-installd_service
-iorapd_service
-lpdump_service
-netd_service
-stats_service
-tracingproxy_service
-vold_service
-default_android_service
}:service_manager { find };
allow atrace servicemanager:service_manager list;
# Allow notifying the processes hosting specific binder services that
# trace-related system properties have changed.
binder_use(atrace)
allow atrace healthd:binder call;
allow atrace surfaceflinger:binder call;
allow atrace system_server:binder call;
allow atrace cameraserver:binder call;
# Similarly, on debug builds, allow specific HALs to be notified that
# trace-related system properties have changed.
userdebug_or_eng(`
# List HAL interfaces.
allow atrace hwservicemanager:hwservice_manager list;
# Notify the camera HAL.
hal_client_domain(atrace, hal_camera)
hal_client_domain(atrace, hal_vibrator)
')
# Remove logspam from notification attempts to non-allowlisted services.
dontaudit atrace hwservice_manager_type:hwservice_manager find;
dontaudit atrace service_manager_type:service_manager find;
dontaudit atrace domain:binder call;
# atrace can call atrace HAL
hal_client_domain(atrace, hal_atrace)
get_prop(atrace, hwservicemanager_prop)
userdebug_or_eng(`
# atrace is generally invoked as a standalone binary from shell or perf
# daemons like Perfetto traced_probes. However, in userdebug builds, there is
# a further option to run atrace as an init daemon for boot tracing.
init_daemon_domain(atrace)
allow atrace debugfs_tracing_debug:dir r_dir_perms;
allow atrace debugfs_tracing_debug:file rw_file_perms;
')