1# Domain for the otapreopt executable, running under postinstall_dexopt
2#
3# Note: otapreopt is a driver for dex2oat, and reuses parts of installd. As such,
4# this is derived and adapted from installd.te.
5
6type postinstall_dexopt, domain;
7
8allow postinstall_dexopt self:capability { chown dac_override fowner setgid setuid };
9
10allow postinstall_dexopt postinstall_file:filesystem getattr;
11allow postinstall_dexopt postinstall_file:dir { getattr search };
12allow postinstall_dexopt postinstall_file:lnk_file read;
13allow postinstall_dexopt proc:file { getattr open read };
14allow postinstall_dexopt tmpfs:file read;
15
16# Note: /data/ota is created by init (see system/core/rootdir/init.rc) to avoid giving access
17# here and having to relabel the directory.
18
19# Read app data (APKs) as input to dex2oat.
20r_dir_file(postinstall_dexopt, apk_data_file)
21# Read vendor app data (APKs) as input to dex2oat.
22r_dir_file(postinstall_dexopt, vendor_app_file)
23# Access to app oat directory.
24r_dir_file(postinstall_dexopt, dalvikcache_data_file)
25
26# Read profile data.
27allow postinstall_dexopt user_profile_data_file:dir { getattr search };
28allow postinstall_dexopt user_profile_data_file:file r_file_perms;
29
30# Write to /data/ota(/*). Create symlinks in /data/ota(/*)
31allow postinstall_dexopt ota_data_file:dir create_dir_perms;
32allow postinstall_dexopt ota_data_file:file create_file_perms;
33allow postinstall_dexopt ota_data_file:lnk_file create_file_perms;
34
35# Need to write .b files, which are dalvikcache_data_file, not ota_data_file.
36# TODO: See whether we can apply ota_data_file?
37allow postinstall_dexopt dalvikcache_data_file:dir rw_dir_perms;
38allow postinstall_dexopt dalvikcache_data_file:file create_file_perms;
39
40# Allow labeling of files under /data/app/com.example/oat/
41# TODO: Restrict to .b suffix?
42allow postinstall_dexopt dalvikcache_data_file:dir relabelto;
43allow postinstall_dexopt dalvikcache_data_file:file { relabelto link };
44
45# Check validity of SELinux context before use.
46selinux_check_context(postinstall_dexopt)
47selinux_check_access(postinstall_dexopt)
48
49
50# Postinstall wants to know about our child.
51allow postinstall_dexopt postinstall:process sigchld;
52
53# Allow otapreopt to use file descriptors from otapreopt_chroot.
54# TODO: Probably we can actually close file descriptors...
55allow postinstall_dexopt otapreopt_chroot:fd use;
56
57allow postinstall_dexopt cpuctl_device:dir search;
58