From 4eca40d7d8ff6968ed68a24686093cfb6f5f6373 Mon Sep 17 00:00:00 2001
From: Ethan Yonker <dees_troy@teamw.in>
Date: Tue, 11 Nov 2014 14:52:28 -0600
Subject: Add lollipop decrypt support

Kang in cryptfs.c and cryptfs.h from vold.
Use TW_INCLUDE_L_CRYPTO := true to enable.
Ramdisk must contain the normal fstab file in the root in the
usual format of:
fstab.{ro.hardware}
For examble for Nexus 5:
fstab.hammerhead
Or on many Qualcomm devices:
fstab.qcom

Tested against Android 5.0 lollipop on Nexus 7 2012 grouper. Not
sure if or how this will work when we are dealing with a device
with a hardware keystore. Long term we need to add a GUI element
to allow entering a pattern. For now you can decrypt a pattern
unlock by converting the dots to numbers in the following format:
123
456
789

So an upper-case L would translate to 14789 as a password entered
on the keyboard.

Change-Id: I02c29e1f1c2eb29bf002c9fe0fc118357300b5b3
---
 Android.mk | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'Android.mk')

diff --git a/Android.mk b/Android.mk
index 2b7d7db26..fc13afc21 100644
--- a/Android.mk
+++ b/Android.mk
@@ -84,7 +84,7 @@ LOCAL_CFLAGS += -Wno-unused-parameter
 #    libm \
 #    libc
 
-LOCAL_C_INCLUDES += bionic external/stlport/stlport
+LOCAL_C_INCLUDES += bionic external/stlport/stlport external/openssl/include
 
 LOCAL_STATIC_LIBRARIES :=
 LOCAL_SHARED_LIBRARIES :=
@@ -281,6 +281,11 @@ ifeq ($(TW_INCLUDE_JB_CRYPTO), true)
     #LOCAL_SRC_FILES += crypto/jb/cryptfs.c
     #LOCAL_C_INCLUDES += system/extras/ext4_utils external/openssl/include
 endif
+ifeq ($(TW_INCLUDE_L_CRYPTO), true)
+    LOCAL_CFLAGS += -DTW_INCLUDE_CRYPTO
+    LOCAL_CFLAGS += -DTW_INCLUDE_L_CRYPTO
+    LOCAL_SHARED_LIBRARIES += libcryptfslollipop
+endif
 ifeq ($(TW_USE_MODEL_HARDWARE_ID_FOR_DEVICE_ID), true)
     LOCAL_CFLAGS += -DTW_USE_MODEL_HARDWARE_ID_FOR_DEVICE_ID
 endif
@@ -527,6 +532,9 @@ ifeq ($(TW_INCLUDE_JB_CRYPTO), true)
     include $(commands_recovery_local_path)/crypto/scrypt/Android.mk
     include $(commands_recovery_local_path)/crypto/crypttools/Android.mk
 endif
+ifeq ($(TW_INCLUDE_L_CRYPTO), true)
+    include $(commands_recovery_local_path)/crypto/lollipop/Android.mk
+endif
 ifeq ($(TWHAVE_SELINUX), true)
     include $(commands_recovery_local_path)/minzip/Android.mk
 else
-- 
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