dianlujitaoandEthan Yonker
4879b37b5d
* For EXT2/3:
* Align mke2fs options with Android 9.0 fs_mgr_format.cpp.
* For EXT4:
* Note that make_ext4fs is still in use on Android 8.1 to workaround
a FDE encryption bug even though mke2fs has become the default
choice. The bug is fixed in Android 9.0+.
* For F2FS:
* Drop the broken "-r" option, it's never ported to O, explicitly
pass number of sectors instead.
* Keep all options aligned with Pie fs_mgr.
* Check existence before start wiping, as Wipe_EXT4 does.
* For all:
* Calculate block size at runtime, and reserve the space specified
via negative "length" option from fstab. Note that positive length
will be ignored.
* If the partition has crypto footer, and "length" is not specified
in fstab, automatically reverse CRYPT_FOOTER_OFFSET (16384).
* Remove the default crypto key location: footer, this is a bad
assumption since most partitions don't use encryption! We need to
know the real situation to decide whether to reserve crypto footer
on format.
* If the current action is "wipe" or "change filesystem", wipe crypto
footer or block device after mkfs if the partition is
unencrypted or undecrypted (e.g., wrong password).
* If the current action is "format data", unconditionally wipe crypto
footer or block device.
Change-Id: I7304a8ee703131ea4a08ab7c60334af28cac28b3