80 lines
2.8 KiB
Plaintext
80 lines
2.8 KiB
Plaintext
# mediadrmserver - mediadrm daemon
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type mediadrmserver, domain;
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type mediadrmserver_exec, exec_type, file_type;
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typeattribute mediadrmserver mlstrustedsubject;
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net_domain(mediadrmserver)
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binder_use(mediadrmserver)
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binder_call(mediadrmserver, binderservicedomain)
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binder_call(mediadrmserver, appdomain)
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binder_service(mediadrmserver)
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binder_call(mediadrmserver, hal_drm)
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add_service(mediadrmserver, mediadrmserver_service)
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allow mediadrmserver mediaserver_service:service_manager find;
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allow mediadrmserver mediametrics_service:service_manager find;
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allow mediadrmserver processinfo_service:service_manager find;
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allow mediadrmserver surfaceflinger_service:service_manager find;
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### Rules needed when DRM HAL runs inside mediadrmserver process.
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### These rules should eventually be granted only when needed.
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# Required by Widevine DRM (b/22990512)
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allow mediadrmserver self:process execmem;
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# System file accesses.
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allow mediadrmserver system_file:dir r_dir_perms;
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allow mediadrmserver system_file:file r_file_perms;
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allow mediadrmserver system_file:lnk_file r_file_perms;
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# Read files already opened under /data.
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allow mediadrmserver system_data_file:dir { search getattr };
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allow mediadrmserver system_data_file:file { getattr read };
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allow mediadrmserver system_data_file:lnk_file r_file_perms;
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# Read access to pseudo filesystems.
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r_dir_file(mediadrmserver, cgroup)
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allow mediadrmserver cgroup:dir { search write };
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allow mediadrmserver cgroup:file w_file_perms;
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# Allow access to ion memory allocation device
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allow mediadrmserver ion_device:chr_file rw_file_perms;
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allow mediadrmserver hal_graphics_allocator:fd use;
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# Allow access to app_data and media_data_files
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allow mediadrmserver media_data_file:dir create_dir_perms;
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allow mediadrmserver media_data_file:file create_file_perms;
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allow mediadrmserver media_data_file:file { getattr read };
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allow mediadrmserver tee_device:chr_file rw_file_perms;
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# XXX Label with a specific type?
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allow mediadrmserver sysfs:file r_file_perms;
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# Connect to tee service.
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allow mediadrmserver tee:unix_stream_socket connectto;
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# only allow unprivileged socket ioctl commands
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allowxperm mediadrmserver self:{ rawip_socket tcp_socket udp_socket }
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ioctl { unpriv_sock_ioctls unpriv_tty_ioctls };
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# Permit reading device's serial number from system properties
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get_prop(mediadrmserver, serialno_prop)
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###
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### Rules needed when DRM HAL runs outside of mediadrmserver process.
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### These rules should eventually be granted only when needed.
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hwbinder_use(mediadrmserver)
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###
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###
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### neverallow rules
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###
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# mediadrmserver should never execute any executable without a
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# domain transition
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neverallow mediadrmserver { file_type fs_type }:file execute_no_trans;
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# do not allow privileged socket ioctl commands
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neverallowxperm mediadrmserver domain:{ rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls;
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