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The Progress bar UI grabs a full wakelock when encrypting, but we've seen
a case where it looks like the progress bar UI crashes, and the wakelock is
lost, and then all hell breaks loose.  The enablecrypto command has a lot of
work to do, and it will take some time, so it should grab a wakelock to
ensure it can finish without being interrupted and put to sleep.

It grabs a partial wake lock, as it doesn't need the screen to be on to do
its work.  If the UI wants to keep it on, it should also grab a full wakelock,
which it does.  If the UI crashes, the screen may turn off, but the encryption
will keep going, and vold will reboot the device when it's done.

Change-Id: I51d3a72b8c77383044a3facb1604c1ee510733ae

If the already existing filesystem encompasses the entire /data partition
and does not leave the last 16 Kbytes for the crypto footer, refuse to
do encrypt in place and return an error.  This is only an issue for folks
with early development systems trying to encrypt an old /data.  This should
not be seen in released devices.

Also, if there is an error, try to report back to the UI what the error was
so it can deal with it.

Change-Id: If66781a4fe03034c96c3dd12075240deb8663db0

There are still a few hacks and performance issues related
to shutting down the framework in this code, but it is
functional and tested.  Without the UI changes, it requires
cryptic adb shell commands to enable, which I shall not
utter here.

Change-Id: I0b8f90afd707e17fbdb0373d156236946633cf8b

Hash was printed using snprintf(), but we can just write yet another hex
conversion utility!

Change-Id: I04f1992deaf5bf1b3e2751c8f07072f8ed6660e9

Change-Id: I9b84370fa9a98464c211ebe8983be8dbe9dd7ccd

Change-Id: Iaeb5d3334ec22ed31da9734bb8d7cd17e6a40eaf
Signed-off-by: San Mehat <san@google.com>

  - Fix issue where container-names > 64 bytes were getting truncated in the
    kernel. lo_name is only 64 bytes in length, so we now hash the container
    id via md5
  - Add 'dump' command to dump loop and devicemapper status
  - Add 'debug' command to enable more detailed logging at runtime
  - Log vold IPC arguments (minus encryption keys)
  - Fix premature return from Loop::lookupActive() and friends

Change-Id: I0e833261a445ce9dc1a8187e5501d27daba1ca76
Signed-off-by: San Mehat <san@google.com>

Also handles an issue where NPARTS=0 on a disk change uevent

Change-Id: I77c56f177dc65df91468bbd7d5fe1889db414d7a
Signed-off-by: San Mehat <san@google.com>

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

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

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

- Supports up to 4096 containers
- Keys are now implemented - specifying a key of 'none' means no encryption.
  Otherwise, the key must be a string of 32 characters
Signed-off-by: San Mehat <san@google.com>

the library is implicit added via inter-library dependency.

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

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

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

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>

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