sepolicy : Define policy for wcnss service domain

Adding wcnss domain and secontext needed for this domain.

Change-Id: I905a0e7b3e1672ead5980b81134c4d1a9b5164e5

Android.mk

@@ -86,7 +86,8 @@ BOARD_SEPOLICY_UNION += \
        location_app.te \
        seapp_contexts \
        logd.te \
-       installd.te
+       installd.te \
+       wcnss_service.te
 
 # Compile sensor pilicy only for SSC targets
 SSC_TARGET_LIST := apq8084

common/device.te

@@ -72,6 +72,8 @@ type usb_uicc_device, dev_type;
 # Define IPA devices
 type ipa_dev, dev_type;
 
+type wcnss_device, dev_type;
+
 type mmc_block_device, dev_type;
 
 #Define Gadget serial device

common/file_contexts

@@ -50,6 +50,8 @@
 /dev/block/mmcblk0                              u:object_r:mmc_block_device:s0
 /dev/rmnet_ctrl.*                               u:object_r:rmnet_device:s0
 /dev/dpl_ctrl                                   u:object_r:rmnet_device:s0
+/dev/wcnss_ctrl                                 u:object_r:wcnss_device:s0
+/dev/wcnss_wlan                                 u:object_r:wcnss_device:s0
 
 ###################################
 # Dev socket nodes
@@ -145,6 +147,7 @@
 /system/bin/gpsone_daemon                       u:object_r:location_exec:s0
 /system/vendor/bin/slim_ap_daemon               u:object_r:location_exec:s0
 /system/vendor/bin/qti                          u:object_r:qti_exec:s0
+/system/bin/wcnss_service                       u:object_r:wcnss_service_exec:s0
 
 ###################################
 # sysfs files

common/wcnss_service.te

@@ -0,0 +1,14 @@
+type wcnss_service, domain;
+type wcnss_service_exec, exec_type, file_type;
+
+init_daemon_domain(wcnss_service)
+
+unix_socket_connect(wcnss_service, property, init)
+allow wcnss_service wcnss_device:chr_file rw_file_perms;
+
+qmux_socket(wcnss_service);
+
+allow wcnss_service wifi_data_file:dir w_dir_perms;
+allow wcnss_service wifi_data_file:file create_file_perms;
+
+allow wcnss_service system_prop:property_service set;