1# cameraserver - camera daemon
2type cameraserver, domain;
3type cameraserver_exec, system_file_type, exec_type, file_type;
4type cameraserver_tmpfs, file_type;
5
6binder_use(cameraserver)
7binder_call(cameraserver, binderservicedomain)
8binder_call(cameraserver, appdomain)
9binder_service(cameraserver)
10
11hal_client_domain(cameraserver, hal_camera)
12
13hal_client_domain(cameraserver, hal_graphics_allocator)
14
15allow cameraserver ion_device:chr_file rw_file_perms;
16
17# Talk with graphics composer fences
18allow cameraserver hal_graphics_composer:fd use;
19
20add_service(cameraserver, cameraserver_service)
21add_hwservice(cameraserver, fwk_camera_hwservice)
22
23allow cameraserver activity_service:service_manager find;
24allow cameraserver appops_service:service_manager find;
25allow cameraserver audioserver_service:service_manager find;
26allow cameraserver batterystats_service:service_manager find;
27allow cameraserver cameraproxy_service:service_manager find;
28allow cameraserver mediaserver_service:service_manager find;
29allow cameraserver processinfo_service:service_manager find;
30allow cameraserver scheduling_policy_service:service_manager find;
31allow cameraserver sensor_privacy_service:service_manager find;
32allow cameraserver surfaceflinger_service:service_manager find;
33
34allow cameraserver hidl_token_hwservice:hwservice_manager find;
35
36###
37### neverallow rules
38###
39
40# cameraserver should never execute any executable without a
41# domain transition
42neverallow cameraserver { file_type fs_type }:file execute_no_trans;
43
44# The goal of the mediaserver split is to place media processing code into
45# restrictive sandboxes with limited responsibilities and thus limited
46# permissions. Example: Audioserver is only responsible for controlling audio
47# hardware and processing audio content. Cameraserver does the same for camera
48# hardware/content. Etc.
49#
50# Media processing code is inherently risky and thus should have limited
51# permissions and be isolated from the rest of the system and network.
52# Lengthier explanation here:
53# https://android-developers.googleblog.com/2016/05/hardening-media-stack.html
54neverallow cameraserver domain:{ tcp_socket udp_socket rawip_socket } *;
55
56# Allow shell commands from ADB for CTS testing/dumping
57allow cameraserver adbd:fd use;
58allow cameraserver adbd:unix_stream_socket { read write };
59allow cameraserver shell:fd use;
60allow cameraserver shell:unix_stream_socket { read write };
61allow cameraserver shell:fifo_file { read write };
62
63# Allow to talk with media codec
64allow cameraserver mediametrics_service:service_manager find;
65hal_client_domain(cameraserver, hal_codec2)
66hal_client_domain(cameraserver, hal_omx)
67hal_client_domain(cameraserver, hal_allocator)
68
69# Allow shell commands from ADB for CTS testing/dumping
70userdebug_or_eng(`
71  allow cameraserver su:fd use;
72  allow cameraserver su:fifo_file { read write };
73  allow cameraserver su:unix_stream_socket { read write };
74')
75