decrypt: AOSP 10 requires the use of fscrypt
fscrypt aosp doc: https://source.android.com/security/encryption/file-based
kernel fscrypt doc: https://www.kernel.org/doc/html/v4.18/filesystems/fscrypt.html
This commit implements the ability for TWRP to use fscrypt to decrypt
files on the fscrypt implementation. It has been implemented mostly
in a new successor library to e4crypt called libtwrpfscrypt. Most of the
code was ported from AOSP vold.
Notable updates include:
- updated policy storage by libtar
- lookup of fbe policies by libtwrpfscrypt
- threaded keystore operations
Big thanks to Dees_Troy for the initial trailblazing
of encryption in TWRP.
Change-Id: I69cd2eba3693a9914e00213d4943229635d0cdae
diff --git a/gui/Android.mk b/gui/Android.mk
index 0c7a02c..33b9020 100755
--- a/gui/Android.mk
+++ b/gui/Android.mk
@@ -43,6 +43,9 @@
ifeq ($(shell test $(PLATFORM_SDK_VERSION) -ge 26; echo $$?),0)
LOCAL_SHARED_LIBRARIES += libziparchive
LOCAL_STATIC_LIBRARIES += libotautil
+ ifneq ($(TW_INCLUDE_CRYPTO),)
+ LOCAL_C_INCLUDES += bootable/recovery/crypto/fscrypt
+ endif
ifeq ($(shell test $(PLATFORM_SDK_VERSION) -gt 28; echo $$?),0)
LOCAL_C_INCLUDES += $(LOCAL_PATH)/../install/include \
system/core/libziparchive/include/ \