1# Domain where the postinstall program runs during the update.
2# Extend the permissions in this domain to allow this program to access other
3# files needed by the specific device on your device's sepolicy directory.
4type postinstall, domain;
5
6# Allow postinstall to write to its stdout/stderr when redirected via pipes to
7# update_engine.
8allow postinstall update_engine:fd use;
9allow postinstall update_engine:fifo_file rw_file_perms;
10
11# Allow postinstall to read and execute directories and files in the same
12# mounted location.
13allow postinstall postinstall_file:file rx_file_perms;
14allow postinstall postinstall_file:lnk_file r_file_perms;
15allow postinstall postinstall_file:dir r_dir_perms;
16
17# Allow postinstall to execute the shell or other system executables.
18allow postinstall shell_exec:file rx_file_perms;
19allow postinstall system_file:file rx_file_perms;
20allow postinstall toolbox_exec:file rx_file_perms;
21
22# No domain other than update_engine should transition to postinstall, as it is
23# only meant to run during the update.
24neverallow { domain -update_engine } postinstall:process { transition dyntransition };
25
26#
27# For OTA dexopt.
28#
29
30# Allow postinstall scripts to talk to the system server.
31binder_use(postinstall)
32binder_call(postinstall, system_server)
33
34# Need to talk to the otadexopt service.
35allow postinstall otadexopt_service:service_manager find;