Android 6.0中在/dev下添加新设备驱动下Selinux相关设置

错误1：

07-23 13:06:57.617 117 117 I SystemServer: Freg Service

07-23 13:06:57.618   117   117 I FregServiceJNI: Initializing HAL stub freg.....
07-23 13:06:57.633   117   117 I FregServiceJNI: Device freg found.
07-23 13:06:57.634   117   117 E freg_hw : Failed to open device file /dev/freg -- Permission denied.
07-24 13:07:25.200   143   143 W system_server: type=1400 audit(0.0:5): avc: denied { read write } for name="freg" dev="tmpfs" ino=1576 scontext=u:r:system_server:s0 tcontext=u:object_r:device:s0 tclass=chr_file permissive=0

错误2：

07-24 13:57:25.209   143   143 E FregServiceJNI: Failed to open device freg.
07-24 13:57:25.209   143   143 E FregService: Failed to initialize freg service.
07-24 13:57:25.219    62    62 E SELinux : avc: denied { add } for service=freg pid=143 uid=1000 scontext=u:r:system_server:s0 tcontext=u:object_r:default_android_service:s0 tclass=service_manager permissive=0
07-24 13:57:25.222    62    62 E ServiceManager: add_service('freg',4a) uid=1000 - PERMISSION DENIED
07-24 13:57:25.231   143   143 E SystemServer: Failure staring Freg Service

错误3：

07-24 13:01:50.326 62 62 E SELinux : avc: denied { find } for service=freg pid=1043 uid=10047 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:freg_service:s0 tclass=service_manager permissive=0

解决方法：

在device.te文件中添加
type freg_device, dev_type;

在domain.te文件中添加
allow domain freg_device:chr_file rw_file_perms;

在file_contexts文件中添加
/dev/freg u:object_r:freg_device:s0

在service.te中文件中添加
type freg_service, system_api_service, system_server_service, service_manager_type;

在service_contexts文件中添加
freg u:object_r:freg_service:s0

在system_server.te文件中添加
allow system_server freg_device:chr_file rw_file_perms;

在untrusted_app.te文件中添加

allow untrusted_app freg_service:service_manager find;

在system_app.te文件中添加

allow system_app freg_service:service_manager find;

参考：

http://blog.csdn.net/wh_19910525/article/details/45170755

http://jingpin.jikexueyuan.com/article/55398.html点击打开链接

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