5e37271df8
system_file_type is a new attribute used to identify files which exist on the /system partition. It's useful for allow rules in init, which are based off of a blacklist of writable files. Additionally, it's useful for constructing neverallow rules to prevent regressions. Additionally, add commented out tests which enforce that all files on the /system partition have the system_file_type attribute. These tests will be uncommented in a future change after all the device-specific policies are cleaned up. Test: Device boots and no obvious problems. Change-Id: Id9bae6625f042594c8eba74ca712abb09702c1e5
20 lines
666 B
Text
20 lines
666 B
Text
# idmap, when executed by installd
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type idmap, domain;
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type idmap_exec, system_file_type, exec_type, file_type;
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# Use open file to /data/resource-cache file inherited from installd.
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allow idmap installd:fd use;
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allow idmap resourcecache_data_file:file { getattr read write };
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# Ignore reading /proc/<pid>/maps after a fork.
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dontaudit idmap installd:file read;
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# Open and read from target and overlay apk files passed by argument.
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allow idmap apk_data_file:file r_file_perms;
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allow idmap apk_data_file:dir search;
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# Allow apps access to /vendor/app
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r_dir_file(idmap, vendor_app_file)
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# Allow apps access to /vendor/overlay
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r_dir_file(idmap, vendor_overlay_file)
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