wifi: create the sys property for wlan driver/firmware

Bug: 76220544 Test: No denial error found for selinux Signed-off-by: Ecco Park <[email protected]> Change-Id: If379812a7c8df7fd84beec6734313459938d540e
Flohack74 · Mar 26, 2018 · 296546c · 296546c
1 parent f4a1fb2
commit 296546c
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diff --git a/device.mk b/device.mk
@@ -72,6 +72,7 @@ PRODUCT_COPY_FILES += \
     $(LOCAL_PATH)/uinput-fpc.idc:system/usr/idc/uinput-fpc.idc \
     $(LOCAL_PATH)/init.qcom.devstart.sh:$(TARGET_COPY_OUT_VENDOR)/bin/init.qcom.devstart.sh \
     $(LOCAL_PATH)/init.qcom.ipastart.sh:$(TARGET_COPY_OUT_VENDOR)/bin/init.qcom.ipastart.sh \
+    $(LOCAL_PATH)/init.qcom.wlan.sh:$(TARGET_COPY_OUT_VENDOR)/bin/init.qcom.wlan.sh \
     $(LOCAL_PATH)/init.insmod.sh:$(TARGET_COPY_OUT_VENDOR)/bin/init.insmod.sh \
     $(LOCAL_PATH)/init.ramoops.sh:$(TARGET_COPY_OUT_SYSTEM)/bin/init.ramoops.sh \
     frameworks/native/services/vr/virtual_touchpad/idc/vr-virtual-touchpad-0.idc:$(TARGET_COPY_OUT_VENDOR)/usr/idc/vr-virtual-touchpad-0.idc \

diff --git a/init.hardware.rc b/init.hardware.rc
@@ -826,6 +826,13 @@ service vendor.devstart_sh /vendor/bin/init.qcom.devstart.sh
     disabled
     oneshot
 
+service vendor.wlan_sh /vendor/bin/init.qcom.wlan.sh
+    class main
+    user root
+    group root
+    disabled
+    oneshot
+
 service vendor.ipastart_sh /vendor/bin/init.qcom.ipastart.sh
     class main
     user system
@@ -861,3 +868,7 @@ on property:sys.vdso=64
 
 on property:sys.vdso=32
    write /sys/module/vdso/parameters/enable_64 0
+
+on property:wlan.driver.status=ok
+   # Get the wlan driver/fw version
+   start vendor.wlan_sh
diff --git a/init.qcom.wlan.sh b/init.qcom.wlan.sh
@@ -0,0 +1,6 @@
+#! /vendor/bin/sh
+
+wlan_driver_version=`cat /sys/kernel/wifi/wlan/driver_version`
+setprop sys.wlan.driver.version "$wlan_driver_version"
+wlan_fw_version=`cat /sys/kernel/wifi/wlan/fw/0/version`
+setprop sys.wlan.firmware.version "$wlan_fw_version"
diff --git a/sepolicy/vendor/file.te b/sepolicy/vendor/file.te
@@ -8,6 +8,7 @@ type sysfs_laser, sysfs_type, fs_type;
 type sysfs_mdss_mdp_caps, sysfs_type, fs_type;
 type sysfs_msm_subsys, sysfs_type, fs_type;
 type sysfs_msm_subsys_restart, sysfs_type, fs_type;
+type sysfs_msm_wlan, sysfs_type, fs_type;
 type sysfs_rmtfs, sysfs_type, fs_type;
 type sysfs_soc, sysfs_type, fs_type;
 type sysfs_scsi_devices_0000, sysfs_type, fs_type;

diff --git a/sepolicy/vendor/file_contexts b/sepolicy/vendor/file_contexts
@@ -178,6 +178,7 @@
 /vendor/bin/imsrcsd             u:object_r:hal_rcsservice_exec:s0
 /vendor/bin/init\.qcom\.devstart\.sh                                 u:object_r:init-qcom-devstart-sh_exec:s0
 /vendor/bin/init\.qcom\.ipastart\.sh                                 u:object_r:init-qcom-ipastart-sh_exec:s0
+/vendor/bin/init\.qcom\.wlan\.sh                                     u:object_r:init-qcom-wlan-sh_exec:s0
 /vendor/bin/init\.insmod\.sh                                         u:object_r:init-insmod-sh_exec:s0
 /vendor/etc/init\.insmod\.cfg                                        u:object_r:init-insmod-sh_exec:s0
 /vendor/bin/init\.power\.sh     u:object_r:init_power_exec:s0

diff --git a/sepolicy/vendor/genfs_contexts b/sepolicy/vendor/genfs_contexts
@@ -67,6 +67,7 @@ genfscon sysfs /bus/msm_subsys                                          u:object
 genfscon sysfs /module/subsystem_restart                                u:object_r:sysfs_msm_subsys_restart:s0
 genfscon sysfs /kernel/boot_adsp/boot                                   u:object_r:sysfs_msm_subsys:s0
 genfscon sysfs /kernel/boot_slpi/boot                                   u:object_r:sysfs_msm_subsys:s0
+genfscon sysfs /kernel/wifi/wlan                                        u:object_r:sysfs_msm_wlan:s0
 genfscon sysfs /kernel/memory_state_time                                u:object_r:sysfs_power:s0
 genfscon sysfs /devices/soc/c1b7000.i2c/i2c-9/9-0008                    u:object_r:sysfs_easel:s0
 genfscon sysfs /class/typec                                             u:object_r:sysfs_usb_c:s0

diff --git a/sepolicy/vendor/init-wlan-sh.te b/sepolicy/vendor/init-wlan-sh.te
@@ -0,0 +1,14 @@
+type init-qcom-wlan-sh, domain;
+type init-qcom-wlan-sh_exec, exec_type, vendor_file_type, file_type;
+
+init_daemon_domain(init-qcom-wlan-sh)
+
+allow init-qcom-wlan-sh vendor_shell_exec:file rx_file_perms;
+allow init-qcom-wlan-sh vendor_toolbox_exec:file rx_file_perms;
+
+# Set the sys.wlan.driver.version and sys.wlan.firmware.version property
+set_prop(init-qcom-wlan-sh, vendor_wifi_version)
+
+# /sys/kernel/wifi/wlan/driver_version and /sys/kernel/wifi/wlan/fw/0/version
+allow init-qcom-wlan-sh sysfs_msm_wlan:dir r_dir_perms;
+allow init-qcom-wlan-sh sysfs_msm_wlan:file r_file_perms;
diff --git a/sepolicy/vendor/property.te b/sepolicy/vendor/property.te
@@ -20,3 +20,4 @@ type bluetooth_log_prop, property_type;
 type power_prop, property_type;
 type vendor_net_radio_prop, property_type;
 type vendor_radio_prop, property_type;
+type vendor_wifi_version, property_type;
diff --git a/sepolicy/vendor/property_contexts b/sepolicy/vendor/property_contexts
@@ -28,6 +28,8 @@ persist.radio.atfwd.start  u:object_r:atfwd_start_prop:s0
 sys.logger.bluetooth       u:object_r:bluetooth_log_prop:s0
 vendor.powerhal.state      u:object_r:power_prop:s0
 vendor.powerhal.audio      u:object_r:power_prop:s0
+sys.wlan.driver.version    u:object_r:vendor_wifi_version:s0
+sys.wlan.firmware.version  u:object_r:vendor_wifi_version:s0
 
 # public_vendor_default_prop
 # They are public_vendor_default_props for vendor-specific extension.

diff --git a/sepolicy/vendor/ssr_detector.te b/sepolicy/vendor/ssr_detector.te
@@ -7,6 +7,7 @@ userdebug_or_eng(`
   allow ssr_detector_app ramdump_vendor_data_file:dir r_dir_perms;
   allow ssr_detector_app ramdump_vendor_data_file:file r_file_perms;
   get_prop(ssr_detector_app, ssr_prop)
+  get_prop(ssr_detector_app, vendor_wifi_version)
 ')
 
 allow ssr_detector_app app_api_service:service_manager find;