From 253368a0726120efa57664cdd1d088af099a3d81 Mon Sep 17 00:00:00 2001
From: Ethan Yonker <dees_troy@teamw.in>
Date: Tue, 25 Nov 2014 15:00:52 -0600
Subject: Reduce libs needed for decrypt and clean up old decypt files

Trim cryptfs.c to remove functions that TWRP does not use for
decrypt and remove the need for libfs_mgr from cryptfs.c by
passing some items to cryptfs.c from the partition manager.

Add support for new fstab flags:
encryptable and forceencrypt=/path/to/cryptokey
For example:
flags=forceencrypt=/dev/block/platform/sdhci-tegra.3/by-name/MD1
Note that "footer" is the default, so you do not need to set this
flag on devices that use the footer for the crypto key.
Also add mounttodecrypt if you need to mount a partition during
the decrypt cycle for firmware of proprietary libs.

Clean up decrypt and only support one version

Android 5.0 lollipop decrypt should be backwards compatible with
older versions so we will only support one version, 1.3 that came
with 5.0 lollipop.

Remove support for Samsung TouchWiz decrypt. It does not work with
the latest versions of Samsung encryption anyway and it has not
been updated to work with any AOSP decryption higher than 1.1

Change-Id: I2d9c6e31df50268c91ee642c2fa090f901d9d5c9
---
 crypto/lollipop/Android.mk | 26 ++++++++++++++++++++++----
 1 file changed, 22 insertions(+), 4 deletions(-)

(limited to 'crypto/lollipop/Android.mk')

diff --git a/crypto/lollipop/Android.mk b/crypto/lollipop/Android.mk
index 40b4d5f95..da25eac30 100644
--- a/crypto/lollipop/Android.mk
+++ b/crypto/lollipop/Android.mk
@@ -21,16 +21,17 @@ common_shared_libraries := \
 	libcutils \
 	liblog \
 	libdiskconfig \
-	libhardware_legacy \
 	liblogwrap \
 	libext4_utils \
 	libf2fs_sparseblock \
 	libcrypto \
 	libselinux \
 	libutils \
-	libhardware \
+	libminhardware \
 	libsoftkeymaster
 
+common_shared_libraries := libcrypto libselinux libhardware libsoftkeymaster libcutils
+
 LOCAL_MODULE := libcryptfslollipop
 LOCAL_MODULE_TAGS := eng optional
 LOCAL_CFLAGS :=
@@ -44,9 +45,26 @@ LOCAL_SRC_FILES = cryptfs.c
 #    hardware/libhardware/include/hardware \
 #	system/security/softkeymaster/include/keymaster
 #LOCAL_SHARED_LIBRARIES += libc liblog libcutils libcrypto libext4_utils
-LOCAL_SHARED_LIBRARIES := $(common_shared_libraries) libmincrypttwrp liblogwrap
+LOCAL_SHARED_LIBRARIES := $(common_shared_libraries) libmincrypttwrp
 LOCAL_C_INCLUDES := external/openssl/include $(common_c_includes)
-LOCAL_WHOLE_STATIC_LIBRARIES += libfs_mgr libscrypt_static
+LOCAL_WHOLE_STATIC_LIBRARIES += libscrypttwrp_static
+
+include $(BUILD_SHARED_LIBRARY)
+
+include $(CLEAR_VARS)
+
+LOCAL_SHARED_LIBRARIES := libcutils liblog
+
+LOCAL_INCLUDES += $(LOCAL_PATH) $(LOCAL_PATH)\libminhardware
+
+LOCAL_CFLAGS  += -DQEMU_HARDWARE
+QEMU_HARDWARE := true
+
+LOCAL_SHARED_LIBRARIES += libdl
+
+LOCAL_SRC_FILES += libminhardware/hardware.c
+
+LOCAL_MODULE:= libminhardware
 
 include $(BUILD_SHARED_LIBRARY)
 endif
-- 
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