cc39f63773
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
60 lines
2.1 KiB
Plaintext
60 lines
2.1 KiB
Plaintext
# perfprofd - perf profile collection daemon
|
|
type perfprofd_exec, exec_type, file_type;
|
|
|
|
userdebug_or_eng(`
|
|
|
|
type perfprofd, domain, domain_deprecated, mlstrustedsubject;
|
|
|
|
init_daemon_domain(perfprofd)
|
|
|
|
# perfprofd needs to control CPU hot-plug in order to avoid kernel
|
|
# perfevents problems in cases where CPU goes on/off during measurement;
|
|
# this means read access to /sys/devices/system/cpu/possible
|
|
# and read/write access to /sys/devices/system/cpu/cpu*/online
|
|
allow perfprofd sysfs_devices_system_cpu:file rw_file_perms;
|
|
|
|
# perfprofd checks for the existence of and then invokes simpleperf;
|
|
# simpleperf retains perfprofd domain after exec
|
|
allow perfprofd system_file:file rx_file_perms;
|
|
|
|
# perfprofd reads a config file from /data/data/com.google.android.gms/files
|
|
allow perfprofd app_data_file:file r_file_perms;
|
|
allow perfprofd app_data_file:dir search;
|
|
allow perfprofd self:capability { dac_override };
|
|
|
|
# perfprofd opens a file for writing in /data/misc/perfprofd
|
|
allow perfprofd perfprofd_data_file:file create_file_perms;
|
|
allow perfprofd perfprofd_data_file:dir rw_dir_perms;
|
|
|
|
# perfprofd uses the system log
|
|
read_logd(perfprofd);
|
|
write_logd(perfprofd);
|
|
|
|
# perfprofd inspects /sys/power/wake_unlock
|
|
wakelock_use(perfprofd);
|
|
|
|
# simpleperf uses ioctl() to turn on kernel perf events measurements
|
|
allow perfprofd self:capability sys_admin;
|
|
|
|
# simpleperf needs to examine /proc to collect task/thread info
|
|
r_dir_file(perfprofd, domain)
|
|
|
|
# simpleperf needs to access /proc/<pid>/exec
|
|
allow perfprofd self:capability { sys_resource sys_ptrace };
|
|
neverallow perfprofd domain:process ptrace;
|
|
|
|
# simpleperf needs open/read any file that turns up in a profile
|
|
# to see whether it has a build ID
|
|
allow perfprofd exec_type:file r_file_perms;
|
|
|
|
# simpleperf examines debugfs on startup to collect tracepoint event types
|
|
allow perfprofd debugfs_tracing:file r_file_perms;
|
|
|
|
# simpleperf is going to execute "sleep"
|
|
allow perfprofd toolbox_exec:file rx_file_perms;
|
|
|
|
# needed for simpleperf on some kernels
|
|
allow perfprofd self:capability ipc_lock;
|
|
|
|
')
|