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1type mediacodec, domain, mlstrustedsubject;
2type mediacodec_exec, exec_type, vendor_file_type, file_type;
3
4init_daemon_domain(mediacodec)
5
6# can route /dev/binder traffic to /dev/vndbinder
7vndbinder_use(mediacodec)
8
9hal_server_domain(mediacodec, hal_codec2)
10hal_server_domain(mediacodec, hal_omx)
11
12# mediacodec may use an input surface from a different Codec2 or OMX service
13hal_client_domain(mediacodec, hal_codec2)
14hal_client_domain(mediacodec, hal_omx)
15
16hal_client_domain(mediacodec, hal_allocator)
17hal_client_domain(mediacodec, hal_graphics_allocator)
18
19allow mediacodec gpu_device:chr_file rw_file_perms;
20allow mediacodec gpu_device:dir r_dir_perms;
21allow mediacodec ion_device:chr_file rw_file_perms;
22allow mediacodec dmabuf_system_heap_device:chr_file r_file_perms;
23allow mediacodec video_device:chr_file rw_file_perms;
24allow mediacodec video_device:dir search;
25
26crash_dump_fallback(mediacodec)
27
28# get aac_drc_* properties
29get_prop(mediacodec, aac_drc_prop)
30
31# mediacodec should never execute any executable without a domain transition
32neverallow mediacodec { file_type fs_type }:file execute_no_trans;
33
34# Media processing code is inherently risky and thus should have limited
35# permissions and be isolated from the rest of the system and network.
36# Lengthier explanation here:
37# https://android-developers.googleblog.com/2016/05/hardening-media-stack.html
38neverallow mediacodec domain:{ udp_socket rawip_socket } *;
39neverallow mediacodec { domain userdebug_or_eng(`-su') }:tcp_socket *;
40
41