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Merge "Remove write permission from file mode of top-level user dirs" am: 46477f1d82

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Original change: https://android-review.googlesource.com/c/platform/system/core/+/2620458

Change-Id: Idc00da3c1d5ce7f5ffc8a3f7942b947fe1b59833
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Eric Biggers 2023-06-20 17:54:45 +00:00 • committed by Automerger Merge Worker
commit c7f7743f4f
1 changed files with 16 additions and 9 deletions
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25
rootdir/init.rc
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@ -919,15 +919,22 @@ on post-fs-data
# encryption policies apply recursively. These directories should never
# contain any subdirectories other than the per-user ones. /data/media/obb
# is an exception that exists for legacy reasons.
mkdir /data/media 0770 media_rw media_rw encryption=None
mkdir /data/misc_ce 01771 system misc encryption=None
mkdir /data/misc_de 01771 system misc encryption=None
mkdir /data/system_ce 0770 system system encryption=None
mkdir /data/system_de 0770 system system encryption=None
mkdir /data/user 0711 system system encryption=None
mkdir /data/user_de 0711 system system encryption=None
mkdir /data/vendor_ce 0771 root root encryption=None
mkdir /data/vendor_de 0771 root root encryption=None
#
# Don't use any write mode bits (0222) for any of these directories, since
# the only process that should write to them directly is vold (since it
# needs to set up file-based encryption on the subdirectories), which runs
# as root with CAP_DAC_OVERRIDE. This is also fully enforced via the
# SELinux policy. But we also set the DAC file modes accordingly, to try to
# minimize differences in behavior if SELinux is set to permissive mode.
mkdir /data/media 0550 media_rw media_rw encryption=None
mkdir /data/misc_ce 0551 system misc encryption=None
mkdir /data/misc_de 0551 system misc encryption=None
mkdir /data/system_ce 0550 system system encryption=None
mkdir /data/system_de 0550 system system encryption=None
mkdir /data/user 0511 system system encryption=None
mkdir /data/user_de 0511 system system encryption=None
mkdir /data/vendor_ce 0551 root root encryption=None
mkdir /data/vendor_de 0551 root root encryption=None
# Set the casefold flag on /data/media. For upgrades, a restorecon can be
# needed first to relabel the directory from media_rw_data_file.