5e37271df8
system_file_type is a new attribute used to identify files which exist on the /system partition. It's useful for allow rules in init, which are based off of a blacklist of writable files. Additionally, it's useful for constructing neverallow rules to prevent regressions. Additionally, add commented out tests which enforce that all files on the /system partition have the system_file_type attribute. These tests will be uncommented in a future change after all the device-specific policies are cleaned up. Test: Device boots and no obvious problems. Change-Id: Id9bae6625f042594c8eba74ca712abb09702c1e5
58 lines
1.9 KiB
Text
58 lines
1.9 KiB
Text
# drmserver - DRM service
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type drmserver, domain;
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type drmserver_exec, system_file_type, exec_type, file_type;
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typeattribute drmserver mlstrustedsubject;
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net_domain(drmserver)
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# Perform Binder IPC to system server.
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binder_use(drmserver)
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binder_call(drmserver, system_server)
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binder_call(drmserver, appdomain)
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binder_service(drmserver)
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# Inherit or receive open files from system_server.
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allow drmserver system_server:fd use;
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# Perform Binder IPC to mediaserver
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binder_call(drmserver, mediaserver)
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allow drmserver sdcard_type:dir search;
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allow drmserver drm_data_file:dir create_dir_perms;
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allow drmserver drm_data_file:file create_file_perms;
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allow drmserver tee_device:chr_file rw_file_perms;
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allow drmserver { app_data_file privapp_data_file }:file { read write getattr map };
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allow drmserver sdcard_type:file { read write getattr map };
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r_dir_file(drmserver, efs_file)
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type drmserver_socket, file_type;
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# /data/app/tlcd_sock socket file.
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# Clearly, /data/app is the most logical place to create a socket. Not.
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allow drmserver apk_data_file:dir rw_dir_perms;
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allow drmserver drmserver_socket:sock_file create_file_perms;
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# Delete old socket file if present.
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allow drmserver apk_data_file:sock_file unlink;
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# After taking a video, drmserver looks at the video file.
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r_dir_file(drmserver, media_rw_data_file)
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# Read resources from open apk files passed over Binder.
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allow drmserver apk_data_file:file { read getattr map };
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allow drmserver asec_apk_file:file { read getattr map };
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allow drmserver ringtone_file:file { read getattr map };
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# Read /data/data/com.android.providers.telephony files passed over Binder.
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allow drmserver radio_data_file:file { read getattr map };
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# /oem access
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allow drmserver oemfs:dir search;
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allow drmserver oemfs:file r_file_perms;
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add_service(drmserver, drmserver_service)
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allow drmserver permission_service:service_manager find;
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selinux_check_access(drmserver)
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r_dir_file(drmserver, cgroup)
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r_dir_file(drmserver, system_file)
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