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      1 # update_verifier
      2 type update_verifier, domain;
      3 type update_verifier_exec, exec_type, file_type;
      4 
      5 # Allow update_verifier to reach block devices in /dev/block.
      6 allow update_verifier block_device:dir search;
      7 
      8 # Read care map in /data/ota_package/.
      9 allow update_verifier ota_package_file:dir r_dir_perms;
     10 allow update_verifier ota_package_file:file r_file_perms;
     11 
     12 # Read /sys/block to find all the DM directories like (/sys/block/dm-X).
     13 allow update_verifier sysfs:dir r_dir_perms;
     14 
     15 # Read /sys/block/dm-X/dm/name (which is a symlink to
     16 # /sys/devices/virtual/block/dm-X/dm/name) to identify the mapping between
     17 # dm-X and system/vendor partitions.
     18 allow update_verifier sysfs_dm:dir r_dir_perms;
     19 allow update_verifier sysfs_dm:file r_file_perms;
     20 
     21 # Read all blocks in DM wrapped system partition.
     22 allow update_verifier dm_device:blk_file r_file_perms;
     23 
     24 # Write to kernel message.
     25 allow update_verifier kmsg_device:chr_file w_file_perms;
     26 
     27 # Allow update_verifier to reboot the device.
     28 set_prop(update_verifier, powerctl_prop)
     29 
     30 # Use Boot Control HAL
     31 hal_client_domain(update_verifier, hal_bootctl)
     32