Error correction: Use libfec in fs_mgr

Use libfec to read and parse verity metadata to protect against data
corruption.

Bug: 21893453
Change-Id: I3a3543e0d999316707302b3be8735a7133d22946
diff --git a/fs_mgr/Android.mk b/fs_mgr/Android.mk
index b47199f..28fff3f 100644
--- a/fs_mgr/Android.mk
+++ b/fs_mgr/Android.mk
@@ -1,49 +1,59 @@
 # Copyright 2011 The Android Open Source Project
 
 LOCAL_PATH:= $(call my-dir)
+
+common_static_libraries := \
+    liblogwrap \
+    libfec \
+    libfec_rs \
+    libbase \
+    libmincrypt \
+    libcrypto_static \
+    libext4_utils_static \
+    libsquashfs_utils
+
 include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:= fs_mgr.c fs_mgr_verity.cpp fs_mgr_fstab.c
-LOCAL_SRC_FILES += fs_mgr_format.c fs_mgr_slotselect.c
-
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include \
+LOCAL_CLANG := true
+LOCAL_SANITIZE := integer
+LOCAL_SRC_FILES:= \
+    fs_mgr.c \
+    fs_mgr_format.c \
+    fs_mgr_fstab.c \
+    fs_mgr_slotselect.c \
+    fs_mgr_verity.cpp
+LOCAL_C_INCLUDES := \
+    $(LOCAL_PATH)/include \
     system/vold \
     system/extras/ext4_utils \
-    external/openssl/include
-
+    external/openssl/include \
+    bootable/recovery
 LOCAL_MODULE:= libfs_mgr
-LOCAL_STATIC_LIBRARIES := liblogwrap libmincrypt libext4_utils_static libsquashfs_utils libbase
-LOCAL_C_INCLUDES += system/extras/ext4_utils system/extras/squashfs_utils \
-	bootable/recovery
+LOCAL_STATIC_LIBRARIES := $(common_static_libraries)
 LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
 LOCAL_CFLAGS := -Werror
-
 ifneq (,$(filter userdebug,$(TARGET_BUILD_VARIANT)))
 LOCAL_CFLAGS += -DALLOW_ADBD_DISABLE_VERITY=1
 endif
-
 include $(BUILD_STATIC_LIBRARY)
 
-
-
 include $(CLEAR_VARS)
-
+LOCAL_CLANG := true
+LOCAL_SANITIZE := integer
 LOCAL_SRC_FILES:= fs_mgr_main.c
-
 LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-
 LOCAL_MODULE:= fs_mgr
-
 LOCAL_MODULE_TAGS := optional
 LOCAL_FORCE_STATIC_EXECUTABLE := true
 LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)/sbin
 LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_UNSTRIPPED)
-
-LOCAL_STATIC_LIBRARIES := libfs_mgr liblogwrap libcutils liblog libc libmincrypt libext4_utils_static libsquashfs_utils libbase
-LOCAL_STATIC_LIBRARIES += libsparse_static libz libselinux
+LOCAL_STATIC_LIBRARIES := libfs_mgr \
+    $(common_static_libraries) \
+    libcutils \
+    liblog \
+    libc \
+    libsparse_static \
+    libz \
+    libselinux
 LOCAL_CXX_STL := libc++_static
-
 LOCAL_CFLAGS := -Werror
-
 include $(BUILD_EXECUTABLE)
-