53 lines
1.7 KiB
Text
53 lines
1.7 KiB
Text
|
## call into system_server process (for invoking callbacks)
|
||
|
|
binder_call(hal_drm, mediadrmserver)
|
||
|
|
|
||
|
|
# Required by Widevine DRM (b/22990512)
|
||
|
|
allow hal_drm self:process execmem;
|
||
|
|
|
||
|
|
# Permit reading device's serial number from system properties
|
||
|
|
get_prop(hal_drm, serialno_prop)
|
||
|
|
|
||
|
|
# System file accesses
|
||
|
|
allow hal_drm system_file:dir r_dir_perms;
|
||
|
|
allow hal_drm system_file:file r_file_perms;
|
||
|
|
allow hal_drm system_file:lnk_file r_file_perms;
|
||
|
|
|
||
|
|
# Read files already opened under /data
|
||
|
|
allow hal_drm system_data_file:dir { search getattr };
|
||
|
|
allow hal_drm system_data_file:file { getattr read };
|
||
|
|
allow hal_drm system_data_file:lnk_file r_file_perms;
|
||
|
|
|
||
|
|
# Read access to pseudo filesystems
|
||
|
|
r_dir_file(hal_drm, cgroup)
|
||
|
|
allow hal_drm cgroup:dir { search write };
|
||
|
|
allow hal_drm cgroup:file w_file_perms;
|
||
|
|
|
||
|
|
# Allow access to ion memory allocation device
|
||
|
|
allow hal_drm ion_device:chr_file rw_file_perms;
|
||
|
|
allow hal_drm hal_graphics_allocator:fd use;
|
||
|
|
|
||
|
|
# Allow access to app_data and media_data_files
|
||
|
|
allow hal_drm media_data_file:dir create_dir_perms;
|
||
|
|
allow hal_drm media_data_file:file create_file_perms;
|
||
|
|
allow hal_drm media_data_file:file { getattr read };
|
||
|
|
|
||
|
|
allow hal_drm sysfs:file r_file_perms;
|
||
|
|
|
||
|
|
# Connect to tee service.
|
||
|
|
allow hal_drm tee:unix_stream_socket connectto;
|
||
|
|
allow hal_drm tee_device:chr_file rw_file_perms;
|
||
|
|
|
||
|
|
# only allow unprivileged socket ioctl commands
|
||
|
|
allowxperm hal_drm self:{ rawip_socket tcp_socket udp_socket }
|
||
|
|
ioctl { unpriv_sock_ioctls unpriv_tty_ioctls };
|
||
|
|
|
||
|
|
###
|
||
|
|
### neverallow rules
|
||
|
|
###
|
||
|
|
|
||
|
|
# hal_drm should never execute any executable without a
|
||
|
|
# domain transition
|
||
|
|
neverallow hal_drm { file_type fs_type }:file execute_no_trans;
|
||
|
|
|
||
|
|
# do not allow privileged socket ioctl commands
|
||
|
|
neverallowxperm hal_drm domain:{ rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls;
|