sepolicy: Add access policy for charger files

Add charger.te file and add policy for charger script
to access charger devices.

while at it add sepolicy rules for hvdcp_opti.

Change-Id: Ib14d5baad3415e3044732177c73b3e64d4f8fdc4

legacy/vendor/common/charger.te

@@ -0,0 +1,37 @@
+# Copyright (c) 2019, The Linux Foundation. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+#       copyright notice, this list of conditions and the following
+#       disclaimer in the documentation and/or other materials provided
+#       with the distribution.
+#     * Neither the name of The Linux Foundation nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+allow charger self:capability2 wake_alarm;
+r_dir_file(charger, sysfs_battery_supply)
+r_dir_file(charger, sysfs_usb_supply)
+
+allow charger {
+    sysfs_battery_supply
+    sysfs_usb_supply
+}:file w_file_perms;
+
+dontaudit charger device:dir r_dir_perms;
+dontaudit charger self:capability sys_admin;

legacy/vendor/common/hvdcp.te

@@ -71,6 +71,6 @@ allow hvdcp mnt_vendor_file:dir search;
 allow hvdcp persist_hvdcp_file:dir rw_dir_perms;
 allow hvdcp persist_hvdcp_file:file create_file_perms;
 
-get_prop(hvdcp,  hvdcp_opti_prop)
+set_prop(hvdcp,  hvdcp_opti_prop)
 
 wakelock_use(hvdcp)

legacy/vendor/common/init_shell.te

@@ -234,15 +234,18 @@ allow qti_init_shell fm_qsoc_patches_exec:file rx_file_perms;
 allow qti_init_shell {
     sysfs_battery_supply
     sysfs_usb_supply
+    sysfs_usbpd_device
 }:dir r_dir_perms;
 
 allow qti_init_shell {
     sysfs_battery_supply
     sysfs_usb_supply
+    sysfs_usbpd_device
 }:file rw_file_perms;
 
 allow qti_init_shell sysfs_battery_supply:file setattr;
 allow qti_init_shell sysfs_usb_supply:file setattr;
+allow qti_init_shell sysfs_usbpd_device:file setattr;
 
 allow qti_init_shell sysfs_fm:file rw_file_perms;
 

legacy/vendor/sdm710/file_contexts

@@ -147,6 +147,7 @@
 # FBE
 /(vendor|system/vendor)/bin/init.qti.qseecomd.sh		u:object_r:init-qti-fbe-sh_exec:s0
 
+/vendor/bin/init.qti.chg_policy.sh                              u:object_r:qti_init_shell_exec:s0
 ##################################
 # same process HAL libs
 /vendor/lib(64)?/hw/gralloc\.sdm710\.so   u:object_r:same_process_hal_file:s0

legacy/vendor/sdm845/file_contexts

@@ -91,6 +91,8 @@
 # FBE
 /(vendor|system/vendor)/bin/init.qti.qseecomd.sh		u:object_r:init-qti-fbe-sh_exec:s0
 
+/vendor/bin/init.qti.chg_policy.sh                  u:object_r:qti_init_shell_exec:s0
+
 # Same process file
 /vendor/lib(64)?/hw/gralloc\.sdm845\.so   u:object_r:same_process_hal_file:s0
 /vendor/lib(64)?/hw/vulkan\.sdm845\.so    u:object_r:same_process_hal_file:s0