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Add the force_and_revert option to the unmount command which will force
the unmount, and revert a crypto mapping.  This is used during factory
reset so that when the internal sdcard volume is formatted, it formats
the raw device, not the encrypted mapping.

Change-Id: I36b6ff9bb54863b121de635472a303bf4a2334a9

Add support for keeping the keys in a separate file on another partition,
for devices with no space reserved for a footer after the userdata filesystem.

Add support for encrypting the volumes managed by vold, if they meet certain
criteria, namely being marked as nonremovable and encryptable in vold.fstab.
A bit of trickiness is required to keep vold happy.

Change-Id: Idf0611f74b56c1026c45742ca82e0c26e58828fe

Fix formatting partitions beyond the first partition.
Do not try to initialize the MBR when formatting only a single partition.

Change-Id: Ifbbd279b1c288b7b1b884a1a89248e3086ed735f
Signed-off-by: Mike Lockwood <lockwood@android.com>

Only share a single partition via UMS if a specific partition
is specified in vold.fstab (rather than "auto")

Do not fail to reformat if MBR cannot be found.

Change-Id: I544ca2ee325c308af656ab9f4732c788a964c156
Signed-off-by: Mike Lockwood <lockwood@android.com>

This reverts commit a9f423dd.

There's a possibility that if something were messed up a call to
NetlinkEvent::findParam could return a NULL. Passing NULL as the
argument into atoi() would cause a null pointer dereference.

Change-Id: Ib071afbbe2adc341108c245ffa596cc8730bd8fd

Signed-off-by: San Mehat <san@google.com>

Signed-off-by: San Mehat <san@google.com>

Signed-off-by: San Mehat <san@android.com>

Signed-off-by: San Mehat <san@android.com>

Signed-off-by: San Mehat <san@android.com>

  Let there be light.
Signed-off-by: San Mehat <san@android.com>