generic/vendor/common/init.te

# Copyright (c) 2018, 2021, 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 init {
    adsprpcd_file
    cache_file
    mnt_vendor_file
    storage_file
    vendor_vm_system_file
    same_process_hal_file
    mnt_product_file
}:dir mounton;

# symlink /sdcard to backing block
allow init tmpfs:lnk_file create;

allow init tty_device:chr_file rw_file_perms;

allow init mnt_vendor_file:dir mounton;

allow init vendor_ab_block_device:lnk_file relabelto;

#Allow init to mount non-hlos partitions in A/B builds
allow init { bt_firmware_file vendor_firmware_file  firmware_file } :dir mounton;

allow init { bt_firmware_file firmware_file }:filesystem  { relabelfrom  mount };
allow { bt_firmware_file firmware_file  }self:filesystem associate;

allow init vendor_qmcs_file:dir { mounton };
allow init vendor_qmcs_file:filesystem { relabelfrom mount unmount relabelto };

dontaudit init kernel:system module_request;

allow init sysfs_leds:lnk_file r_file_perms;

allow init socket_device:sock_file create_file_perms;

#Needed for restorecon. Init already has these permissions
#for generic block devices, but is unable to access those
#which have a custom lable added by us.
allow init {
    vendor_custom_ab_block_device
    boot_block_device
    vendor_xbl_block_device
    vendor_ssd_block_device
    vendor_modem_block_device
    vendor_mdtp_device
    vendor_vm_data_block_device
}:{ blk_file lnk_file } relabelto;

#Allow /sys access to write zram disksize
allow init sysfs_zram:dir r_dir_perms;
allow init sysfs_zram:file r_file_perms;

allow init vendor_sysfs_boot_adsp:file w_file_perms;

allow init bt_firmware_file:filesystem getattr;
allow init firmware_file:filesystem getattr;

# Search and write access for vendor_sysfs_graphics for backlight in recovery
recovery_only(`
allow init vendor_sysfs_graphics:file w_file_perms;
allow init vendor_sysfs_graphics:dir search;
allow init vendor_sysfs_usb_device:file w_file_perms;
')