275f6dd5a3
Clean up the remaining granted permissions in domain_deprecated.
avc: granted { read open } for comm="uncrypt"
path="/sys/firmware/devicetree/base/firmware/android/fstab/compatible"
dev="sysfs" ino=17591 scontext=u:r:uncrypt:s0
tcontext=u:object_r:sysfs:s0 tclass=file
avc: granted { getattr } for comm="uncrypt"
path="/sys/firmware/devicetree/base/firmware/android/compatible"
dev="sysfs" ino=17583 scontext=u:r:uncrypt:s0
tcontext=u:object_r:sysfs:s0 tclass=file
vc: granted { read open } for comm="update_engine"
path="/sys/firmware/devicetree/base/firmware/android/fstab" dev="sysfs"
ino=17258 scontext=u:r:update_engine:s0 tcontext=u:object_r:sysfs:s0
tclass=dir
avc: granted { getattr } for comm="update_engine"
path="/sys/firmware/devicetree/base/firmware/android/fstab/compatible"
dev="sysfs" ino=17259 scontext=u:r:update_engine:s0
tcontext=u:object_r:sysfs:s0 tclass=file
Bug: 28760354
Test: build
Change-Id: Id318ce84894c1001361923f5205de093a15c1e6a
49 lines
2.1 KiB
Text
49 lines
2.1 KiB
Text
# update_engine payload application permissions. These are shared between the
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# background daemon and the recovery tool to sideload an update.
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# Allow update_engine to reach block devices in /dev/block.
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allow update_engine_common block_device:dir search;
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# Allow read/write on system and boot partitions.
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allow update_engine_common boot_block_device:blk_file rw_file_perms;
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allow update_engine_common system_block_device:blk_file rw_file_perms;
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# Allow to set recovery options in the BCB. Used to trigger factory reset when
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# the update to an older version (channel change) or incompatible version
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# requires it.
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allow update_engine_common misc_block_device:blk_file rw_file_perms;
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# read fstab
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allow update_engine_common rootfs:dir getattr;
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allow update_engine_common rootfs:file r_file_perms;
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# Allow update_engine_common to mount on the /postinstall directory and reset the
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# labels on the mounted filesystem to postinstall_file.
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allow update_engine_common postinstall_mnt_dir:dir { mounton getattr search };
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allow update_engine_common postinstall_file:filesystem { mount unmount relabelfrom relabelto };
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allow update_engine_common labeledfs:filesystem relabelfrom;
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# Allow update_engine_common to read and execute postinstall_file.
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allow update_engine_common postinstall_file:file rx_file_perms;
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allow update_engine_common postinstall_file:lnk_file r_file_perms;
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allow update_engine_common postinstall_file:dir r_dir_perms;
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# install update.zip from cache
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r_dir_file(update_engine_common, cache_file)
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# A postinstall program is typically a shell script (with a #!), so we allow
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# to execute those.
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allow update_engine_common shell_exec:file rx_file_perms;
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# Allow update_engine_common to suspend, resume and kill the postinstall program.
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allow update_engine_common postinstall:process { signal sigstop sigkill };
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# access /proc/misc and /proc/sys/kernel/random/boot_id
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allow update_engine proc:file r_file_perms;
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allow update_engine proc_misc:file r_file_perms;
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# read directories on /system and /vendor
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allow update_engine system_file:dir r_dir_perms;
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# Read files in /sys
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r_dir_file(uncrypt, sysfs)
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