590a77d53d
During init, vold needs rw permissions in order to manage block devices.
This change allows the required permissions.
Denial observed without this change:
[ 7.574441] .(1)[397:logd.auditd]type=1400 audit(1608975791.836:9): avc: denied { write } for comm="Binder:379_2" name="uevent" dev="sysfs" ino=35884 scontext=u:r:vold:s0 tcontext=u:object_r:sysfs_mmcblk:s0 tclass=file permissive=1
Test: Boot and observe that denial has disappeared
Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>
Change-Id: I3fa256cf5957f0af3fa2628833820f0f9fcf298b
49 lines
1.7 KiB
Plaintext
49 lines
1.7 KiB
Plaintext
# ==============================================
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# MTK Policy Rule
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# ==============================================
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# volume manager
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# Date : WK16.19
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# Operation : Migration
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# Purpose : unmount /mnt/cd-rom. It causes by unmountAll() when VolumeManager starts
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allow vold iso9660:filesystem unmount;
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# Date : WK16.19
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# Operation : Migration
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# Purpose : vold will traverse /proc when remountUid().
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# It will trigger violation if mtk customize some label in /proc.
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# However, we should ignore the violation if the processes never access the storage.
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dontaudit vold proc_battery_cmd:dir { read open };
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dontaudit vold proc_mtkcooler:dir { read open };
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dontaudit vold proc_mtktz:dir { read open };
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dontaudit vold proc_thermal:dir { read open };
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# Date : WK18.30
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# Operation : Migration
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# Purpose : vold create mdlog folder in data for meta mode.
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allow vold mdlog_data_file:dir { create_dir_perms };
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allow vold mtd_device:blk_file rw_file_perms;
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# dontaudit for fstrim on 'vendor' folder
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dontaudit vold nvdata_file:dir r_dir_perms;
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dontaudit vold nvcfg_file:dir r_dir_perms;
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dontaudit vold protect_f_data_file:dir r_dir_perms;
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dontaudit vold protect_s_data_file:dir r_dir_perms;
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# execute mke2fs when format as internal
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allow vold cache_block_device:blk_file getattr;
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allowxperm vold dm_device:blk_file ioctl {
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BLKSECDISCARD BLKDISCARD BLKPBSZGET BLKDISCARDZEROES BLKROGET
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};
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allow vold nvcfg_block_device:blk_file getattr;
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allow vold nvdata_device:blk_file getattr;
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allow vold proc_swaps:file r_file_perms;
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allow vold protect1_block_device:blk_file getattr;
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allow vold protect2_block_device:blk_file getattr;
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allow vold proc_swaps:file getattr;
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allow vold swap_block_device:blk_file getattr;
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allow vold sysfs_mmcblk:file rw_file_perms;
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