basic/non_plat/vold.te

# ==============================================
# Common SEPolicy Rule
# ==============================================

# volume manager

# Date : WK16.19
# Operation : Migration
# Purpose : unmount /mnt/cd-rom. It causes by unmountAll() when VolumeManager starts
allow vold iso9660:filesystem unmount;

# Date : WK16.19
# Operation : Migration
# Purpose : vold will traverse /proc when remountUid().
#           It will trigger violation if mtk customize some label in /proc.
#           However, we should ignore the violation if the processes never access the storage.
dontaudit vold proc_mtkcooler:dir r_dir_perms;
dontaudit vold proc_mtktz:dir r_dir_perms;
dontaudit vold proc_thermal:dir r_dir_perms;

# Date : WK18.30
# Operation : Migration
# Purpose : vold create mdlog folder in data for meta mode.
allow vold mdlog_data_file:dir create_dir_perms;

allow vold mtd_device:blk_file rw_file_perms;

# dontaudit for fstrim on 'vendor' folder
dontaudit vold nvdata_file:dir r_dir_perms;
dontaudit vold nvcfg_file:dir r_dir_perms;
dontaudit vold protect_f_data_file:dir r_dir_perms;
dontaudit vold protect_s_data_file:dir r_dir_perms;

# execute mke2fs when format as internal
allow vold cache_block_device:blk_file getattr;
allowxperm vold dm_device:blk_file ioctl {
  BLKSECDISCARD BLKDISCARD BLKPBSZGET BLKDISCARDZEROES BLKROGET
};
allow vold nvcfg_block_device:blk_file getattr;
allow vold nvdata_device:blk_file getattr;
allow vold proc_swaps:file r_file_perms;
allow vold protect1_block_device:blk_file getattr;
allow vold protect2_block_device:blk_file getattr;
allow vold swap_block_device:blk_file getattr;

# trigger udisk uevent
allow vold sysfs_usb_nonplat:file w_file_perms;