5b4bea438a
Prior to this CL, /sys/devices/virtual/block/dm-X was using the generic
sysfs label. This CL creates sysfs_dm label and grants the following
accesses:
- update_verifier to read sysfs_dm dir and file at
/sys/devices/virtual/block/dm-X.
- vold to write sysfs_dm.
Bug: 63440407
Test: update_verifier successfully triggers blocks verification and
marks a sucessful boot;
Test: No sysfs_dm related denials on sailfish.
Change-Id: I6349412707800f1bd3a2fb94d4fe505558400c95
32 lines
1.1 KiB
Plaintext
32 lines
1.1 KiB
Plaintext
# update_verifier
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type update_verifier, domain;
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type update_verifier_exec, exec_type, file_type;
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# Allow update_verifier to reach block devices in /dev/block.
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allow update_verifier block_device:dir search;
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# Read care map in /data/ota_package/.
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allow update_verifier ota_package_file:dir r_dir_perms;
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allow update_verifier ota_package_file:file r_file_perms;
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# Read /sys/block to find all the DM directories like (/sys/block/dm-X).
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allow update_verifier sysfs:dir r_dir_perms;
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# Read /sys/block/dm-X/dm/name (which is a symlink to
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# /sys/devices/virtual/block/dm-X/dm/name) to identify the mapping between
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# dm-X and system/vendor partitions.
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allow update_verifier sysfs_dm:dir r_dir_perms;
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allow update_verifier sysfs_dm:file r_file_perms;
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# Read all blocks in DM wrapped system partition.
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allow update_verifier dm_device:blk_file r_file_perms;
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# Write to kernel message.
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allow update_verifier kmsg_device:chr_file w_file_perms;
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# Allow update_verifier to reboot the device.
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set_prop(update_verifier, powerctl_prop)
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# Use Boot Control HAL
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hal_client_domain(update_verifier, hal_bootctl)
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