vendor/qcom/common/hal_bootctl.te

# These are the permissions required to use the boot_control HAL implemented
# here: hardware/qcom/bootctrl/boot_control.c

# Getting and setting GPT attributes for the bootloader iterates over all the
# partition names in the block_device directory /dev/block/.../by-name
allow hal_bootctl block_device:dir r_dir_perms;

# Edit the attributes stored in the GPT.
allow hal_bootctl gpt_block_device:blk_file rw_file_perms;
allow hal_bootctl ab_block_device:blk_file getattr;
allow hal_bootctl boot_block_device:blk_file rw_file_perms;
allow hal_bootctl modem_block_device:blk_file getattr;
allow hal_bootctl system_block_device:blk_file getattr;
allow hal_bootctl_server misc_block_device:blk_file rw_file_perms;

# Access /dev/sgN devices (generic SCSI) to write the
# A/B slot selection for the XBL partition. Allow also to issue a
# UFS_IOCTL_QUERY ioctl.
allow hal_bootctl sg_device:chr_file rw_file_perms;
allow hal_bootctl self:capability sys_admin;
allow hal_bootctl tmpfs:lnk_file r_file_perms;

# Read the sysfs to lookup what /dev/sgN device
# corresponds to the XBL partitions.
allow hal_bootctl sysfs_type:dir r_dir_perms;

# Write to the XBL devices.
allow hal_bootctl xbl_block_device:blk_file rw_file_perms;