790f4c7e20
Address the "granted" permissions observed in the logs including:
tcontext=uncrypt
avc: granted { search } for comm="uncrypt" name="/" dev="mmcblk0p40"
ino=2 scontext=u:r:uncrypt:s0 tcontext=u:object_r:cache_file:s0
tclass=dir
tcontext=install_recovery
avc: granted { search } for comm="applypatch" name="saved.file"
scontext=u:r:install_recovery:s0 tcontext=u:object_r:cache_file:s0
tclass=dir
avc: granted { read } for comm="applypatch" name="saved.file"
dev="mmcblk0p6" ino=14 scontext=u:r:install_recovery:s0
tcontext=u:object_r:cache_file:s0 tclass=file
avc: granted { getattr } for comm="applypatch" path="/cache/saved.file"
dev="mmcblk0p6" ino=14 scontext=u:r:install_recovery:s0
tcontext=u:object_r:cache_file:s0 tclass=file
tcontext=update_engine
avc: granted { search } for comm="update_engine" name="cache"
dev="sda35" ino=1409025 scontext=u:r:update_engine:s0
tcontext=u:object_r:cache_file:s0 tclass=dir"
avc: granted { read } for comm="update_engine" name="update.zip"
dev="sda35" ino=1409037 scontext=u:r:update_engine:s0
tcontext=u:object_r:cache_file:s0:c512,c768 tclass=file
avc: granted { read } for comm="update_engine" name="cache" dev="dm-0"
ino=16 scontext=u:r:update_engine:s0 tcontext=u:object_r:cache_file:s0
tclass=lnk_file
Bug: 28760354
Test: build policy.
Merged-In: Ia13fe47268df904bd4f815c429a0acac961aed1e
Change-Id: Ia13fe47268df904bd4f815c429a0acac961aed1e
39 lines
1.1 KiB
Text
39 lines
1.1 KiB
Text
# uncrypt
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type uncrypt, domain, domain_deprecated, mlstrustedsubject;
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type uncrypt_exec, exec_type, file_type;
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allow uncrypt self:capability dac_override;
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# Read OTA zip file from /data/data/com.google.android.gsf/app_download
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r_dir_file(uncrypt, app_data_file)
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userdebug_or_eng(`
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# For debugging, allow /data/local/tmp access
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r_dir_file(uncrypt, shell_data_file)
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')
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# Read /cache/recovery/command
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# Read /cache/recovery/uncrypt_file
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allow uncrypt cache_file:dir search;
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allow uncrypt cache_recovery_file:dir rw_dir_perms;
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allow uncrypt cache_recovery_file:file create_file_perms;
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# Read OTA zip file at /data/ota_package/.
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allow uncrypt ota_package_file:dir r_dir_perms;
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allow uncrypt ota_package_file:file r_file_perms;
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# Write to /dev/socket/uncrypt
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unix_socket_connect(uncrypt, uncrypt, uncrypt)
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# Set a property to reboot the device.
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set_prop(uncrypt, powerctl_prop)
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# Raw writes to block device
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allow uncrypt self:capability sys_rawio;
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allow uncrypt misc_block_device:blk_file w_file_perms;
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allow uncrypt block_device:dir r_dir_perms;
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# Access userdata block device.
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allow uncrypt userdata_block_device:blk_file w_file_perms;
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r_dir_file(uncrypt, rootfs)
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