diff --git a/Android.mk b/Android.mk
index 5bf90ce..569ff8b 100644
--- a/Android.mk
+++ b/Android.mk
@@ -84,7 +84,7 @@
 #    libm \
 #    libc
 
-LOCAL_C_INCLUDES += bionic external/stlport/stlport external/openssl/include
+LOCAL_C_INCLUDES += bionic external/stlport/stlport external/openssl/include $(LOCAL_PATH)/libmincrypt/includes
 
 LOCAL_STATIC_LIBRARIES :=
 LOCAL_SHARED_LIBRARIES :=
@@ -326,6 +326,11 @@
     LOCAL_CFLAGS += -DHAVE_CAPABILITIES
 endif
 
+# Auto filled build flag
+ifeq ($(PLATFORM_VERSION), 5.0)
+    LOCAL_CFLAGS += -DANDROID_VERSION=5
+endif
+
 LOCAL_LDFLAGS += -Wl,-dynamic-linker,/sbin/linker
 
 LOCAL_ADDITIONAL_DEPENDENCIES := \
@@ -339,8 +344,7 @@
     teamwin \
     toolbox_symlinks \
     twrp \
-    unpigz_symlink \
-    updater
+    unpigz_symlink
 
 ifneq ($(TARGET_ARCH), arm64)
     LOCAL_ADDITIONAL_DEPENDENCIES += \
@@ -439,7 +443,7 @@
 
 LOCAL_CFLAGS := -O2 -g -DADB_HOST=0 -Wall -Wno-unused-parameter
 LOCAL_CFLAGS += -D_XOPEN_SOURCE -D_GNU_SOURCE
-
+LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE := libfusesideload
 LOCAL_C_INCLUDES := $(LOCAL_PATH)/libmincrypt/includes
 LOCAL_SHARED_LIBRARIES := libcutils libc libmincrypttwrp
@@ -474,7 +478,12 @@
 LOCAL_MODULE := libaosprecovery
 LOCAL_MODULE_TAGS := eng optional
 LOCAL_C_INCLUDES := $(LOCAL_PATH)/libmincrypt/includes
-LOCAL_SRC_FILES = adb_install.cpp asn1_decoder.cpp bootloader.cpp verifier.cpp mtdutils/mtdutils.c legacy_property_service.c
+LOCAL_SRC_FILES := adb_install.cpp asn1_decoder.cpp bootloader.cpp mtdutils/mtdutils.c legacy_property_service.c
+ifeq ($(PLATFORM_VERSION), 5.0)
+    LOCAL_SRC_FILES += verifier.cpp
+else
+    LOCAL_SRC_FILES += verifierold.cpp
+endif
 LOCAL_SHARED_LIBRARIES += libc liblog libcutils libmtdutils libfusesideload libmincrypttwrp
 
 ifneq ($(BOARD_RECOVERY_BLDRMSG_OFFSET),)
@@ -533,7 +542,7 @@
 ifeq ($(TW_INCLUDE_L_CRYPTO), true)
     include $(commands_recovery_local_path)/crypto/lollipop/Android.mk
 endif
-ifeq ($(TWHAVE_SELINUX), true)
+ifeq ($(PLATFORM_VERSION), 5.0)
     include $(commands_recovery_local_path)/minzip/Android.mk
 else
     include $(commands_recovery_local_path)/minzipold/Android.mk
diff --git a/etc/init.rc b/etc/init.rc
index 67b6a6f..7dae1c9 100644
--- a/etc/init.rc
+++ b/etc/init.rc
@@ -113,7 +113,6 @@
     seclabel u:r:healthd:s0
 
 service recovery /sbin/recovery
-    seclabel u:r:recovery:s0
 
 service adbd /sbin/adbd --root_seclabel=u:r:su:s0 --device_banner=recovery
     disabled
diff --git a/fuse.h b/fuse.h
new file mode 100644
index 0000000..8135d47
--- /dev/null
+++ b/fuse.h
@@ -0,0 +1,574 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_FUSE_H
+#define _LINUX_FUSE_H
+#include <stdint.h>
+#define FUSE_KERNEL_VERSION 7
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_KERNEL_MINOR_VERSION 22
+#define FUSE_ROOT_ID 1
+struct fuse_attr {
+ uint64_t ino;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t size;
+ uint64_t blocks;
+ uint64_t atime;
+ uint64_t mtime;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t ctime;
+ uint32_t atimensec;
+ uint32_t mtimensec;
+ uint32_t ctimensec;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t mode;
+ uint32_t nlink;
+ uint32_t uid;
+ uint32_t gid;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t rdev;
+ uint32_t blksize;
+ uint32_t padding;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_kstatfs {
+ uint64_t blocks;
+ uint64_t bfree;
+ uint64_t bavail;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t files;
+ uint64_t ffree;
+ uint32_t bsize;
+ uint32_t namelen;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t frsize;
+ uint32_t padding;
+ uint32_t spare[6];
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_file_lock {
+ uint64_t start;
+ uint64_t end;
+ uint32_t type;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t pid;
+};
+#define FATTR_MODE (1 << 0)
+#define FATTR_UID (1 << 1)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FATTR_GID (1 << 2)
+#define FATTR_SIZE (1 << 3)
+#define FATTR_ATIME (1 << 4)
+#define FATTR_MTIME (1 << 5)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FATTR_FH (1 << 6)
+#define FATTR_ATIME_NOW (1 << 7)
+#define FATTR_MTIME_NOW (1 << 8)
+#define FATTR_LOCKOWNER (1 << 9)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FOPEN_DIRECT_IO (1 << 0)
+#define FOPEN_KEEP_CACHE (1 << 1)
+#define FOPEN_NONSEEKABLE (1 << 2)
+#define FUSE_ASYNC_READ (1 << 0)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_POSIX_LOCKS (1 << 1)
+#define FUSE_FILE_OPS (1 << 2)
+#define FUSE_ATOMIC_O_TRUNC (1 << 3)
+#define FUSE_EXPORT_SUPPORT (1 << 4)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_BIG_WRITES (1 << 5)
+#define FUSE_DONT_MASK (1 << 6)
+#define FUSE_SPLICE_WRITE (1 << 7)
+#define FUSE_SPLICE_MOVE (1 << 8)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_SPLICE_READ (1 << 9)
+#define FUSE_FLOCK_LOCKS (1 << 10)
+#define FUSE_HAS_IOCTL_DIR (1 << 11)
+#define FUSE_AUTO_INVAL_DATA (1 << 12)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_DO_READDIRPLUS (1 << 13)
+#define FUSE_READDIRPLUS_AUTO (1 << 14)
+#define FUSE_ASYNC_DIO (1 << 15)
+#define CUSE_UNRESTRICTED_IOCTL (1 << 0)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_RELEASE_FLUSH (1 << 0)
+#define FUSE_RELEASE_FLOCK_UNLOCK (1 << 1)
+#define FUSE_GETATTR_FH (1 << 0)
+#define FUSE_LK_FLOCK (1 << 0)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_WRITE_CACHE (1 << 0)
+#define FUSE_WRITE_LOCKOWNER (1 << 1)
+#define FUSE_READ_LOCKOWNER (1 << 1)
+#define FUSE_IOCTL_COMPAT (1 << 0)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_IOCTL_UNRESTRICTED (1 << 1)
+#define FUSE_IOCTL_RETRY (1 << 2)
+#define FUSE_IOCTL_32BIT (1 << 3)
+#define FUSE_IOCTL_DIR (1 << 4)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_IOCTL_MAX_IOV 256
+#define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)
+enum fuse_opcode {
+ FUSE_LOOKUP = 1,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_FORGET = 2,
+ FUSE_GETATTR = 3,
+ FUSE_SETATTR = 4,
+ FUSE_READLINK = 5,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_SYMLINK = 6,
+ FUSE_MKNOD = 8,
+ FUSE_MKDIR = 9,
+ FUSE_UNLINK = 10,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_RMDIR = 11,
+ FUSE_RENAME = 12,
+ FUSE_LINK = 13,
+ FUSE_OPEN = 14,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_READ = 15,
+ FUSE_WRITE = 16,
+ FUSE_STATFS = 17,
+ FUSE_RELEASE = 18,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_FSYNC = 20,
+ FUSE_SETXATTR = 21,
+ FUSE_GETXATTR = 22,
+ FUSE_LISTXATTR = 23,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_REMOVEXATTR = 24,
+ FUSE_FLUSH = 25,
+ FUSE_INIT = 26,
+ FUSE_OPENDIR = 27,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_READDIR = 28,
+ FUSE_RELEASEDIR = 29,
+ FUSE_FSYNCDIR = 30,
+ FUSE_GETLK = 31,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_SETLK = 32,
+ FUSE_SETLKW = 33,
+ FUSE_ACCESS = 34,
+ FUSE_CREATE = 35,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_INTERRUPT = 36,
+ FUSE_BMAP = 37,
+ FUSE_DESTROY = 38,
+ FUSE_IOCTL = 39,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_POLL = 40,
+ FUSE_NOTIFY_REPLY = 41,
+ FUSE_BATCH_FORGET = 42,
+ FUSE_FALLOCATE = 43,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_READDIRPLUS = 44,
+ CUSE_INIT = 4096,
+};
+enum fuse_notify_code {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_NOTIFY_POLL = 1,
+ FUSE_NOTIFY_INVAL_INODE = 2,
+ FUSE_NOTIFY_INVAL_ENTRY = 3,
+ FUSE_NOTIFY_STORE = 4,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ FUSE_NOTIFY_RETRIEVE = 5,
+ FUSE_NOTIFY_DELETE = 6,
+ FUSE_NOTIFY_CODE_MAX,
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_MIN_READ_BUFFER 8192
+#define FUSE_COMPAT_ENTRY_OUT_SIZE 120
+struct fuse_entry_out {
+ uint64_t nodeid;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t generation;
+ uint64_t entry_valid;
+ uint64_t attr_valid;
+ uint32_t entry_valid_nsec;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t attr_valid_nsec;
+ struct fuse_attr attr;
+};
+struct fuse_forget_in {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t nlookup;
+};
+struct fuse_forget_one {
+ uint64_t nodeid;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t nlookup;
+};
+struct fuse_batch_forget_in {
+ uint32_t count;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t dummy;
+};
+struct fuse_getattr_in {
+ uint32_t getattr_flags;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t dummy;
+ uint64_t fh;
+};
+#define FUSE_COMPAT_ATTR_OUT_SIZE 96
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_attr_out {
+ uint64_t attr_valid;
+ uint32_t attr_valid_nsec;
+ uint32_t dummy;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ struct fuse_attr attr;
+};
+#define FUSE_COMPAT_MKNOD_IN_SIZE 8
+struct fuse_mknod_in {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t mode;
+ uint32_t rdev;
+ uint32_t umask;
+ uint32_t padding;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct fuse_mkdir_in {
+ uint32_t mode;
+ uint32_t umask;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct fuse_rename_in {
+ uint64_t newdir;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_link_in {
+ uint64_t oldnodeid;
+};
+struct fuse_setattr_in {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t valid;
+ uint32_t padding;
+ uint64_t fh;
+ uint64_t size;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t lock_owner;
+ uint64_t atime;
+ uint64_t mtime;
+ uint64_t unused2;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t atimensec;
+ uint32_t mtimensec;
+ uint32_t unused3;
+ uint32_t mode;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t unused4;
+ uint32_t uid;
+ uint32_t gid;
+ uint32_t unused5;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct fuse_open_in {
+ uint32_t flags;
+ uint32_t unused;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct fuse_create_in {
+ uint32_t flags;
+ uint32_t mode;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t umask;
+ uint32_t padding;
+};
+struct fuse_open_out {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t fh;
+ uint32_t open_flags;
+ uint32_t padding;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_release_in {
+ uint64_t fh;
+ uint32_t flags;
+ uint32_t release_flags;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t lock_owner;
+};
+struct fuse_flush_in {
+ uint64_t fh;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t unused;
+ uint32_t padding;
+ uint64_t lock_owner;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_read_in {
+ uint64_t fh;
+ uint64_t offset;
+ uint32_t size;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t read_flags;
+ uint64_t lock_owner;
+ uint32_t flags;
+ uint32_t padding;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+#define FUSE_COMPAT_WRITE_IN_SIZE 24
+struct fuse_write_in {
+ uint64_t fh;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t offset;
+ uint32_t size;
+ uint32_t write_flags;
+ uint64_t lock_owner;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t flags;
+ uint32_t padding;
+};
+struct fuse_write_out {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t size;
+ uint32_t padding;
+};
+#define FUSE_COMPAT_STATFS_SIZE 48
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_statfs_out {
+ struct fuse_kstatfs st;
+};
+struct fuse_fsync_in {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t fh;
+ uint32_t fsync_flags;
+ uint32_t padding;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_setxattr_in {
+ uint32_t size;
+ uint32_t flags;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_getxattr_in {
+ uint32_t size;
+ uint32_t padding;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_getxattr_out {
+ uint32_t size;
+ uint32_t padding;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_lk_in {
+ uint64_t fh;
+ uint64_t owner;
+ struct fuse_file_lock lk;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t lk_flags;
+ uint32_t padding;
+};
+struct fuse_lk_out {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ struct fuse_file_lock lk;
+};
+struct fuse_access_in {
+ uint32_t mask;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t padding;
+};
+struct fuse_init_in {
+ uint32_t major;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t minor;
+ uint32_t max_readahead;
+ uint32_t flags;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_init_out {
+ uint32_t major;
+ uint32_t minor;
+ uint32_t max_readahead;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t flags;
+ uint16_t max_background;
+ uint16_t congestion_threshold;
+ uint32_t max_write;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+#define CUSE_INIT_INFO_MAX 4096
+struct cuse_init_in {
+ uint32_t major;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t minor;
+ uint32_t unused;
+ uint32_t flags;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct cuse_init_out {
+ uint32_t major;
+ uint32_t minor;
+ uint32_t unused;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t flags;
+ uint32_t max_read;
+ uint32_t max_write;
+ uint32_t dev_major;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t dev_minor;
+ uint32_t spare[10];
+};
+struct fuse_interrupt_in {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t unique;
+};
+struct fuse_bmap_in {
+ uint64_t block;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t blocksize;
+ uint32_t padding;
+};
+struct fuse_bmap_out {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t block;
+};
+struct fuse_ioctl_in {
+ uint64_t fh;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t flags;
+ uint32_t cmd;
+ uint64_t arg;
+ uint32_t in_size;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t out_size;
+};
+struct fuse_ioctl_iovec {
+ uint64_t base;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t len;
+};
+struct fuse_ioctl_out {
+ int32_t result;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t flags;
+ uint32_t in_iovs;
+ uint32_t out_iovs;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_poll_in {
+ uint64_t fh;
+ uint64_t kh;
+ uint32_t flags;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t events;
+};
+struct fuse_poll_out {
+ uint32_t revents;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t padding;
+};
+struct fuse_notify_poll_wakeup_out {
+ uint64_t kh;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct fuse_fallocate_in {
+ uint64_t fh;
+ uint64_t offset;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t length;
+ uint32_t mode;
+ uint32_t padding;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_in_header {
+ uint32_t len;
+ uint32_t opcode;
+ uint64_t unique;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t nodeid;
+ uint32_t uid;
+ uint32_t gid;
+ uint32_t pid;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t padding;
+};
+struct fuse_out_header {
+ uint32_t len;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ int32_t error;
+ uint64_t unique;
+};
+struct fuse_dirent {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t ino;
+ uint64_t off;
+ uint32_t namelen;
+ uint32_t type;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ char name[];
+};
+#define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
+#define FUSE_DIRENT_ALIGN(x)   (((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1))
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define FUSE_DIRENT_SIZE(d)   FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
+struct fuse_direntplus {
+ struct fuse_entry_out entry_out;
+ struct fuse_dirent dirent;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+#define FUSE_NAME_OFFSET_DIRENTPLUS   offsetof(struct fuse_direntplus, dirent.name)
+#define FUSE_DIRENTPLUS_SIZE(d)   FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen)
+struct fuse_notify_inval_inode_out {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t ino;
+ int64_t off;
+ int64_t len;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_notify_inval_entry_out {
+ uint64_t parent;
+ uint32_t namelen;
+ uint32_t padding;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct fuse_notify_delete_out {
+ uint64_t parent;
+ uint64_t child;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t namelen;
+ uint32_t padding;
+};
+struct fuse_notify_store_out {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t nodeid;
+ uint64_t offset;
+ uint32_t size;
+ uint32_t padding;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct fuse_notify_retrieve_out {
+ uint64_t notify_unique;
+ uint64_t nodeid;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint64_t offset;
+ uint32_t size;
+ uint32_t padding;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct fuse_notify_retrieve_in {
+ uint64_t dummy1;
+ uint64_t offset;
+ uint32_t size;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ uint32_t dummy2;
+ uint64_t dummy3;
+ uint64_t dummy4;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif
diff --git a/fuse_sideload.c b/fuse_sideload.c
index ab91def..f5f20ea 100644
--- a/fuse_sideload.c
+++ b/fuse_sideload.c
@@ -46,7 +46,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
-#include <linux/fuse.h>
+#include "fuse.h"
 #include <pthread.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/gui/Android.mk b/gui/Android.mk
index 479bc76..15a27a2 100644
--- a/gui/Android.mk
+++ b/gui/Android.mk
@@ -81,6 +81,11 @@
 	endif
 endif
 
+# Auto filled build flag
+ifeq ($(PLATFORM_VERSION), 5.0)
+    LOCAL_CFLAGS += -DANDROID_VERSION=5
+endif
+
 LOCAL_C_INCLUDES += bionic external/stlport/stlport $(commands_recovery_local_path)/gui/devices/$(DEVICE_RESOLUTION)
 
 include $(BUILD_STATIC_LIBRARY)
diff --git a/gui/pages.cpp b/gui/pages.cpp
index bea39e9..b110e38 100644
--- a/gui/pages.cpp
+++ b/gui/pages.cpp
@@ -39,8 +39,13 @@
 extern "C" {
 #include "../twcommon.h"
 #include "../minuitwrp/minui.h"
+#if (ANDROID_VERSION >= 5)
 #include "../minzip/SysUtil.h"
 #include "../minzip/Zip.h"
+#else
+#include "../minzipold/SysUtil.h"
+#include "../minzipold/Zip.h"
+#endif
 }
 
 #include "rapidxml.hpp"
@@ -921,7 +926,9 @@
 	char* xmlFile = NULL;
 	PageSet* pageSet = NULL;
 	int ret;
+#if (ANDROID_VERSION >= 5)
 	MemMapping map;
+#endif
 
 	// Open the XML file
 	LOGINFO("Loading package: %s (%s)\n", name.c_str(), package.c_str());
@@ -948,6 +955,7 @@
 	else
 	{
 		LOGINFO("Loading zip theme\n");
+#if (ANDROID_VERSION >= 5)
 		if (!TWFunc::Path_Exists(package))
 			return -1;
 		if (sysMapFile(package.c_str(), &map) != 0) {
@@ -959,6 +967,12 @@
 			sysReleaseMap(&map);
 			return -1;
 		}
+#else
+		if (mzOpenZipArchive(package.c_str(), &zip)) {
+			LOGERR("Failed to open theme zip.\n");
+			return -1;
+		}
+#endif
 		pZip = &zip;
 		const ZipEntry* ui_xml = mzFindZipEntry(&zip, "ui.xml");
 		if (ui_xml == NULL)
@@ -1006,7 +1020,9 @@
 
 	if (pZip) {
 		mzCloseZipArchive(pZip);
+#if (ANDROID_VERSION >= 5)
 		sysReleaseMap(&map);
+#endif
 	}
 	return ret;
 
@@ -1014,7 +1030,9 @@
 	LOGERR("An internal error has occurred.\n");
 	if (pZip) {
 		mzCloseZipArchive(pZip);
+#if (ANDROID_VERSION >= 5)
 		sysReleaseMap(&map);
+#endif
 	}
 	if (xmlFile)
 		free(xmlFile);
diff --git a/libmincrypt/Android.mk b/libmincrypt/Android.mk
index fa6bc78..774e918 100644
--- a/libmincrypt/Android.mk
+++ b/libmincrypt/Android.mk
@@ -4,6 +4,7 @@
 
 include $(CLEAR_VARS)
 LOCAL_MODULE := libmincrypttwrp
+LOCAL_MODULE_TAGS := optional
 LOCAL_C_INCLUDES := $(commands_recovery_local_path)/libmincrypt/includes
 LOCAL_SRC_FILES := dsa_sig.c p256.c p256_ec.c p256_ecdsa.c rsa.c sha.c sha256.c
 LOCAL_CFLAGS := -Wall -Werror
@@ -11,6 +12,7 @@
 
 include $(CLEAR_VARS)
 LOCAL_MODULE := libmincrypttwrp
+LOCAL_MODULE_TAGS := optional
 LOCAL_C_INCLUDES := $(commands_recovery_local_path)/libmincrypt/includes
 LOCAL_SRC_FILES := dsa_sig.c p256.c p256_ec.c p256_ecdsa.c rsa.c sha.c sha256.c
 LOCAL_CFLAGS := -Wall -Werror
@@ -18,6 +20,7 @@
 
 include $(CLEAR_VARS)
 LOCAL_MODULE := libmincrypttwrp
+LOCAL_MODULE_TAGS := optional
 LOCAL_C_INCLUDES := $(commands_recovery_local_path)/libmincrypt/includes
 LOCAL_SRC_FILES := dsa_sig.c p256.c p256_ec.c p256_ecdsa.c rsa.c sha.c sha256.c
 LOCAL_CFLAGS := -Wall -Werror
diff --git a/minzipold/Android.mk b/minzipold/Android.mk
index 0435c6a..68485ab 100644
--- a/minzipold/Android.mk
+++ b/minzipold/Android.mk
@@ -8,15 +8,11 @@
 	Inlines.c \
 	Zip.c
 
-LOCAL_C_INCLUDES += \
+LOCAL_C_INCLUDES := \
 	external/zlib \
 	external/safe-iop/include
 
-ifeq ($(HAVE_SELINUX),true)
-LOCAL_C_INCLUDES += external/libselinux/include
-LOCAL_STATIC_LIBRARIES += libselinux
-LOCAL_CFLAGS += -DHAVE_SELINUX
-endif
+LOCAL_STATIC_LIBRARIES := libselinux
 
 LOCAL_MODULE := libminzip
 
@@ -39,7 +35,7 @@
 	external/zlib \
 	external/safe-iop/include
 
-ifeq ($(HAVE_SELINUX),true)
+ifeq ($(TWHAVE_SELINUX),true)
 LOCAL_C_INCLUDES += external/libselinux/include
 LOCAL_STATIC_LIBRARIES += libselinux
 LOCAL_CFLAGS += -DHAVE_SELINUX
diff --git a/minzipold/DirUtil.c b/minzipold/DirUtil.c
index 0d49b57..8dd5da1 100644
--- a/minzipold/DirUtil.c
+++ b/minzipold/DirUtil.c
@@ -145,24 +145,19 @@
         } else if (ds == DMISSING) {
             int err;
 
-#ifdef HAVE_SELINUX
             char *secontext = NULL;
 
             if (sehnd) {
                 selabel_lookup(sehnd, &secontext, cpath, mode);
                 setfscreatecon(secontext);
             }
-#endif
 
             err = mkdir(cpath, mode);
 
-#ifdef HAVE_SELINUX
-
             if (secontext) {
                 freecon(secontext);
                 setfscreatecon(NULL);
             }
-#endif
 
             if (err != 0) {
                 free(cpath);
diff --git a/minzipold/DirUtil.h b/minzipold/DirUtil.h
index f8be640..a5cfa76 100644
--- a/minzipold/DirUtil.h
+++ b/minzipold/DirUtil.h
@@ -24,12 +24,8 @@
 extern "C" {
 #endif
 
-#ifdef HAVE_SELINUX
 #include <selinux/selinux.h>
 #include <selinux/label.h>
-#else
-struct selabel_handle;
-#endif
 
 /* Like "mkdir -p", try to guarantee that all directories
  * specified in path are present, creating as many directories
diff --git a/minzipold/SysUtil.c b/minzipold/SysUtil.c
index 49a2522..31c76d6 100644
--- a/minzipold/SysUtil.c
+++ b/minzipold/SysUtil.c
@@ -95,16 +95,16 @@
     if (memPtr == NULL)
         return -1;
 
-    actual = read(fd, memPtr, length);
+    pMap->baseAddr = pMap->addr = memPtr;
+    pMap->baseLength = pMap->length = length;
+
+    actual = TEMP_FAILURE_RETRY(read(fd, memPtr, length));
     if (actual != length) {
         LOGE("only read %d of %d bytes\n", (int) actual, (int) length);
         sysReleaseShmem(pMap);
         return -1;
     }
 
-    pMap->baseAddr = pMap->addr = memPtr;
-    pMap->baseLength = pMap->length = length;
-
     return 0;
 }
 
diff --git a/minzipold/Zip.c b/minzipold/Zip.c
index 54d5d55..439e5d9 100644
--- a/minzipold/Zip.c
+++ b/minzipold/Zip.c
@@ -985,6 +985,7 @@
     unsigned int i;
     bool seenMatch = false;
     int ok = true;
+    int extractCount = 0;
     for (i = 0; i < pArchive->numEntries; i++) {
         ZipEntry *pEntry = pArchive->pEntries + i;
         if (pEntry->fileNameLen < zipDirLen) {
@@ -1115,23 +1116,19 @@
                  * Open the target for writing.
                  */
 
-#ifdef HAVE_SELINUX
                 char *secontext = NULL;
 
                 if (sehnd) {
                     selabel_lookup(sehnd, &secontext, targetFile, UNZIP_FILEMODE);
                     setfscreatecon(secontext);
                 }
-#endif
 
                 int fd = creat(targetFile, UNZIP_FILEMODE);
 
-#ifdef HAVE_SELINUX
                 if (secontext) {
                     freecon(secontext);
                     setfscreatecon(NULL);
                 }
-#endif
 
                 if (fd < 0) {
                     LOGE("Can't create target file \"%s\": %s\n",
@@ -1154,13 +1151,16 @@
                     break;
                 }
 
-                LOGD("Extracted file \"%s\"\n", targetFile);
+                LOGV("Extracted file \"%s\"\n", targetFile);
+                ++extractCount;
             }
         }
 
         if (callback != NULL) callback(targetFile, cookie);
     }
 
+    LOGD("Extracted %d file(s)\n", extractCount);
+
     free(helper.buf);
     free(zpath);
 
diff --git a/minzipold/Zip.h b/minzipold/Zip.h
index 4bb9ef6..c942828 100644
--- a/minzipold/Zip.h
+++ b/minzipold/Zip.h
@@ -18,12 +18,8 @@
 extern "C" {
 #endif
 
-#ifdef HAVE_SELINUX
 #include <selinux/selinux.h>
 #include <selinux/label.h>
-#else
-struct selabel_handle;
-#endif
 
 /*
  * One entry in the Zip archive.  Treat this as opaque -- use accessors below.
diff --git a/prebuilt/Android.mk b/prebuilt/Android.mk
index 7d860b0..bb1a7c1 100644
--- a/prebuilt/Android.mk
+++ b/prebuilt/Android.mk
@@ -33,8 +33,6 @@
 #RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/twrpmtp
 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libc.so
 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libcutils.so
-# Not available in 5.0
-#RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libcorkscrew.so
 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libcrecovery.so
 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libusbhost.so
 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libgccdemangle.so
@@ -61,12 +59,16 @@
 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libbmlutils.so
 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libflashutils.so
 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libstlport.so
-# libraries from lollipop
 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libfusesideload.so
-RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libbacktrace.so
-RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libunwind.so
-RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libunwind-ptrace.so
-# end libraries from lollipop
+ifeq ($(PLATFORM_VERSION), 5.0)
+    # libraries from lollipop
+    RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libbacktrace.so
+    RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libunwind.so
+    RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libunwind-ptrace.so
+else
+    # Not available in lollipop
+    RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libcorkscrew.so
+endif
 RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libmincrypttwrp.so
 RELINK_SOURCE_FILES += $(TARGET_RECOVERY_ROOT_OUT)/sbin/toolbox
 ifneq ($(TW_OEM_BUILD),true)
@@ -143,9 +145,14 @@
     RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libopenaes.so
 endif
 ifeq ($(TARGET_USERIMAGES_USE_F2FS), true)
-    RELINK_SOURCE_FILES += $(TARGET_ROOT_OUT_SBIN)/mkfs.f2fs
+    ifeq ($(PLATFORM_VERSION), 5.0)
+        RELINK_SOURCE_FILES += $(TARGET_ROOT_OUT_SBIN)/mkfs.f2fs
+        #RELINK_SOURCE_FILES += $(TARGET_ROOT_OUT_SBIN)/fibmap.f2fs
+    else
+        RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/mkfs.f2fs
+        RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/fibmap.f2fs
+    endif
     RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/fsck.f2fs
-    #RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/fibmap.f2fs
 endif
 ifneq ($(wildcard system/core/reboot/Android.mk),)
     RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/reboot
diff --git a/tests/Android.mk b/tests/Android.mk
index 4d99d52..0079be4 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -22,5 +22,6 @@
     $(eval LOCAL_SRC_FILES := $(file)) \
     $(eval LOCAL_MODULE := $(notdir $(file:%.cpp=%))) \
     $(eval LOCAL_C_INCLUDES := $(LOCAL_PATH)/..) \
+    $(eval LOCAL_MODULE_TAGS := optional) \
     $(eval include $(BUILD_NATIVE_TEST)) \
-)
\ No newline at end of file
+)
diff --git a/toolbox/Android.mk b/toolbox/Android.mk
index ad2e24c..2154479 100644
--- a/toolbox/Android.mk
+++ b/toolbox/Android.mk
@@ -1,6 +1,9 @@
 LOCAL_PATH:= system/core/toolbox/
 
 
+ifeq ($(PLATFORM_VERSION), 5.0)
+
+# Rule for lollipop
 common_cflags := \
     -std=gnu99 \
     -Werror -Wno-unused-parameter \
@@ -187,3 +190,158 @@
 # local module name
 ALL_MODULES.$(LOCAL_MODULE).INSTALLED := \
     $(ALL_MODULES.$(LOCAL_MODULE).INSTALLED) $(SYMLINKS)
+
+else
+
+# Rule for older trees
+LOCAL_PATH:= system/core/toolbox/
+include $(CLEAR_VARS)
+
+TOOLS := \
+	start \
+	stop \
+	getprop \
+	setprop
+
+# If busybox does not have SELinux support, provide these tools with toolbox.
+# Note that RECOVERY_BUSYBOX_TOOLS will be empty if TW_USE_TOOLBOX == true.
+ifeq ($(TWHAVE_SELINUX), true)
+	TOOLS_FOR_SELINUX := \
+		ls \
+		getenforce \
+		setenforce \
+		chcon \
+		restorecon \
+		runcon \
+		getsebool \
+		setsebool \
+		load_policy
+	TOOLS += $(filter-out $(RECOVERY_BUSYBOX_TOOLS), $(TOOLS_FOR_SELINUX))
+endif
+
+ifeq ($(TW_USE_TOOLBOX), true)
+	TOOLS += \
+		mount \
+		cat \
+		ps \
+		kill \
+		ln \
+		insmod \
+		rmmod \
+		lsmod \
+		ifconfig \
+		setconsole \
+		rm \
+		mkdir \
+		rmdir \
+		getevent \
+		sendevent \
+		date \
+		wipe \
+		sync \
+		umount \
+		notify \
+		cmp \
+		dmesg \
+		route \
+		hd \
+		dd \
+		df \
+		watchprops \
+		log \
+		sleep \
+		renice \
+		printenv \
+		smd \
+		chmod \
+		chown \
+		newfs_msdos \
+		netstat \
+		ioctl \
+		mv \
+		schedtop \
+		top \
+		iftop \
+		id \
+		uptime \
+		vmstat \
+		nandread \
+		ionice \
+		touch \
+		lsof \
+		du \
+		md5 \
+		clear \
+		swapon \
+		swapoff \
+		mkswap \
+		readlink
+	ifneq ($(TWHAVE_SELINUX), true)
+		TOOLS += ls
+	endif
+endif
+
+LOCAL_SRC_FILES := \
+	toolbox.c \
+	$(patsubst %,%.c,$(TOOLS))
+
+ifneq ($(wildcard system/core/toolbox/dynarray.c),)
+    LOCAL_SRC_FILES += dynarray.c
+endif
+
+# reboot.c was removed in 4.4 kitkat
+#TOOLS += reboot
+
+#ifeq ($(BOARD_USES_BOOTMENU),true)
+#	LOCAL_SRC_FILES += ../../../external/bootmenu/libreboot/reboot.c
+#else
+#	LOCAL_SRC_FILES += reboot.c
+#endif
+
+LOCAL_C_INCLUDES := bionic/libc/bionic
+
+LOCAL_SHARED_LIBRARIES := \
+	libcutils \
+	liblog \
+	libc
+
+ifeq ($(TWHAVE_SELINUX), true)
+	LOCAL_SHARED_LIBRARIES += libselinux
+endif
+
+LOCAL_MODULE := toolbox_recovery
+LOCAL_MODULE_STEM := toolbox
+LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin
+LOCAL_MODULE_TAGS := optional
+
+# Including this will define $(intermediates).
+#
+include $(BUILD_EXECUTABLE)
+
+$(LOCAL_PATH)/toolbox.c: $(intermediates)/tools.h
+
+TOOLS_H := $(intermediates)/tools.h
+$(TOOLS_H): PRIVATE_TOOLS := $(TOOLS)
+$(TOOLS_H): PRIVATE_CUSTOM_TOOL = echo "/* file generated automatically */" > $@ ; for t in $(PRIVATE_TOOLS) ; do echo "TOOL($$t)" >> $@ ; done
+$(TOOLS_H): $(LOCAL_PATH)/Android.mk
+$(TOOLS_H):
+	$(transform-generated-source)
+
+# Make #!/system/bin/toolbox launchers for each tool.
+#
+SYMLINKS := $(addprefix $(TARGET_RECOVERY_ROOT_OUT)/sbin/,$(TOOLS))
+$(SYMLINKS): TOOLBOX_BINARY := $(LOCAL_MODULE_STEM)
+$(SYMLINKS): $(LOCAL_INSTALLED_MODULE) $(LOCAL_PATH)/Android.mk
+	@echo "Symlink: $@ -> $(TOOLBOX_BINARY)"
+	@mkdir -p $(dir $@)
+	@rm -rf $@
+	$(hide) ln -sf $(TOOLBOX_BINARY) $@
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := toolbox_symlinks
+LOCAL_MODULE_TAGS := optional
+LOCAL_ADDITIONAL_DEPENDENCIES := $(SYMLINKS)
+include $(BUILD_PHONY_PACKAGE)
+SYMLINKS :=
+
+endif
diff --git a/twinstall.cpp b/twinstall.cpp
index f185701..01bd672 100644
--- a/twinstall.cpp
+++ b/twinstall.cpp
@@ -31,16 +31,17 @@
 #include "mincrypt/rsa.h"
 #include "mincrypt/sha.h"
 #include "minui/minui.h"
-#ifdef HAVE_SELINUX
+#include "mtdutils/mounts.h"
+#include "mtdutils/mtdutils.h"
+#if (ANDROID_VERSION >= 5)
 #include "minzip/SysUtil.h"
 #include "minzip/Zip.h"
+#include "verifier.h"
 #else
+#include "verifierold.h"
 #include "minzipold/SysUtil.h"
 #include "minzipold/Zip.h"
 #endif
-#include "mtdutils/mounts.h"
-#include "mtdutils/mtdutils.h"
-#include "verifier.h"
 #include "variables.h"
 #include "data.hpp"
 #include "partitions.hpp"
@@ -278,28 +279,44 @@
 #endif
 	DataManager::SetProgress(0);
 
+#if (ANDROID_VERSION >= 5)
 	MemMapping map;
 	if (sysMapFile(path, &map) != 0) {
 		LOGERR("Failed to sysMapFile '%s'\n", path);
         return -1;
     }
+#endif
 
 	if (zip_verify) {
 		gui_print("Verifying zip signature...\n");
+#if (ANDROID_VERSION >= 5)
 		ret_val = verify_file(map.addr, map.length);
+#else
+		ret_val = verify_file(path);
+#endif
 		if (ret_val != VERIFY_SUCCESS) {
 			LOGERR("Zip signature verification failed: %i\n", ret_val);
+#if (ANDROID_VERSION >= 5)
 			sysReleaseMap(&map);
+#endif
 			return -1;
 		}
 	}
+#if (ANDROID_VERSION >= 5)
 	ret_val = mzOpenZipArchive(map.addr, map.length, &Zip);
+#else
+	ret_val = mzOpenZipArchive(path, &Zip);
+#endif
 	if (ret_val != 0) {
 		LOGERR("Zip file is corrupt!\n", path);
+#if (ANDROID_VERSION >= 5)
 		sysReleaseMap(&map);
+#endif
 		return INSTALL_CORRUPT;
 	}
 	ret_val = Run_Update_Binary(path, &Zip, wipe_cache);
+#if (ANDROID_VERSION >= 5)
 	sysReleaseMap(&map);
+#endif
 	return ret_val;
 }
diff --git a/twrp-functions.cpp b/twrp-functions.cpp
index a2970b0..9611424 100644
--- a/twrp-functions.cpp
+++ b/twrp-functions.cpp
@@ -525,12 +525,20 @@
 			return reboot(RB_AUTOBOOT);
 		case rb_recovery:
 			check_and_run_script("/sbin/rebootrecovery.sh", "reboot recovery");
+#ifdef ANDROID_RB_PROPERTY
 			property_set(ANDROID_RB_PROPERTY, "reboot,recovery");
+#else
+			return __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, (void*) "recovery");
+#endif
 			sleep(5);
 			return 0;
 		case rb_bootloader:
 			check_and_run_script("/sbin/rebootbootloader.sh", "reboot bootloader");
+#ifdef ANDROID_RB_PROPERTY
 			property_set(ANDROID_RB_PROPERTY, "reboot,bootloader");
+#else
+			return __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, (void*) "bootloader");
+#endif
 			sleep(5);
 			return 0;
 		case rb_poweroff:
@@ -541,7 +549,11 @@
 			return reboot(RB_POWER_OFF);
 		case rb_download:
 			check_and_run_script("/sbin/rebootdownload.sh", "reboot download");
+#ifdef ANDROID_RB_PROPERTY
 			property_set(ANDROID_RB_PROPERTY, "reboot,download");
+#else
+			return __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, (void*) "download");
+#endif
 			sleep(5);
 			return 0;
 		default:
diff --git a/uncrypt/Android.mk b/uncrypt/Android.mk
index b8755fb..e782ef4 100644
--- a/uncrypt/Android.mk
+++ b/uncrypt/Android.mk
@@ -20,7 +20,7 @@
 LOCAL_SRC_FILES := uncrypt.c
 
 LOCAL_MODULE := uncrypt
-
+LOCAL_MODULE_TAGS := optional
 LOCAL_STATIC_LIBRARIES := libfs_mgr liblog libcutils
 
 include $(BUILD_EXECUTABLE)
diff --git a/verifierold.cpp b/verifierold.cpp
new file mode 100644
index 0000000..4387ab5
--- /dev/null
+++ b/verifierold.cpp
@@ -0,0 +1,344 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "common.h"
+#include "verifierold.h"
+#include "ui.h"
+
+#include "mincrypt/rsa.h"
+#include "mincrypt/sha.h"
+#include "mincrypt/sha256.h"
+
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+
+//extern RecoveryUI* ui;
+
+#define PUBLIC_KEYS_FILE "/res/keys"
+
+// Look for an RSA signature embedded in the .ZIP file comment given
+// the path to the zip.  Verify it matches one of the given public
+// keys.
+//
+// Return VERIFY_SUCCESS, VERIFY_FAILURE (if any error is encountered
+// or no key matches the signature).
+int verify_file(const char* path) {
+    //ui->SetProgress(0.0);
+
+    int numKeys;
+    Certificate* pKeys = load_keys(PUBLIC_KEYS_FILE, &numKeys);
+    if (pKeys == NULL) {
+        LOGE("Failed to load keys\n");
+        return INSTALL_CORRUPT;
+    }
+    LOGI("%d key(s) loaded from %s\n", numKeys, PUBLIC_KEYS_FILE);
+
+    FILE* f = fopen(path, "rb");
+    if (f == NULL) {
+        LOGE("failed to open %s (%s)\n", path, strerror(errno));
+        return VERIFY_FAILURE;
+    }
+
+    // An archive with a whole-file signature will end in six bytes:
+    //
+    //   (2-byte signature start) $ff $ff (2-byte comment size)
+    //
+    // (As far as the ZIP format is concerned, these are part of the
+    // archive comment.)  We start by reading this footer, this tells
+    // us how far back from the end we have to start reading to find
+    // the whole comment.
+
+#define FOOTER_SIZE 6
+
+    if (fseek(f, -FOOTER_SIZE, SEEK_END) != 0) {
+        LOGE("failed to seek in %s (%s)\n", path, strerror(errno));
+        fclose(f);
+        return VERIFY_FAILURE;
+    }
+
+    unsigned char footer[FOOTER_SIZE];
+    if (fread(footer, 1, FOOTER_SIZE, f) != FOOTER_SIZE) {
+        LOGE("failed to read footer from %s (%s)\n", path, strerror(errno));
+        fclose(f);
+        return VERIFY_FAILURE;
+    }
+
+    if (footer[2] != 0xff || footer[3] != 0xff) {
+        LOGE("footer is wrong\n");
+        fclose(f);
+        return VERIFY_FAILURE;
+    }
+
+    size_t comment_size = footer[4] + (footer[5] << 8);
+    size_t signature_start = footer[0] + (footer[1] << 8);
+    LOGI("comment is %d bytes; signature %d bytes from end\n",
+         comment_size, signature_start);
+
+    if (signature_start - FOOTER_SIZE < RSANUMBYTES) {
+        // "signature" block isn't big enough to contain an RSA block.
+        LOGE("signature is too short\n");
+        fclose(f);
+        return VERIFY_FAILURE;
+    }
+
+#define EOCD_HEADER_SIZE 22
+
+    // The end-of-central-directory record is 22 bytes plus any
+    // comment length.
+    size_t eocd_size = comment_size + EOCD_HEADER_SIZE;
+
+    if (fseek(f, -eocd_size, SEEK_END) != 0) {
+        LOGE("failed to seek in %s (%s)\n", path, strerror(errno));
+        fclose(f);
+        return VERIFY_FAILURE;
+    }
+
+    // Determine how much of the file is covered by the signature.
+    // This is everything except the signature data and length, which
+    // includes all of the EOCD except for the comment length field (2
+    // bytes) and the comment data.
+    size_t signed_len = ftell(f) + EOCD_HEADER_SIZE - 2;
+
+    unsigned char* eocd = (unsigned char*)malloc(eocd_size);
+    if (eocd == NULL) {
+        LOGE("malloc for EOCD record failed\n");
+        fclose(f);
+        return VERIFY_FAILURE;
+    }
+    if (fread(eocd, 1, eocd_size, f) != eocd_size) {
+        LOGE("failed to read eocd from %s (%s)\n", path, strerror(errno));
+        fclose(f);
+        return VERIFY_FAILURE;
+    }
+
+    // If this is really is the EOCD record, it will begin with the
+    // magic number $50 $4b $05 $06.
+    if (eocd[0] != 0x50 || eocd[1] != 0x4b ||
+        eocd[2] != 0x05 || eocd[3] != 0x06) {
+        LOGE("signature length doesn't match EOCD marker\n");
+        fclose(f);
+        return VERIFY_FAILURE;
+    }
+
+    size_t i;
+    for (i = 4; i < eocd_size-3; ++i) {
+        if (eocd[i  ] == 0x50 && eocd[i+1] == 0x4b &&
+            eocd[i+2] == 0x05 && eocd[i+3] == 0x06) {
+            // if the sequence $50 $4b $05 $06 appears anywhere after
+            // the real one, minzip will find the later (wrong) one,
+            // which could be exploitable.  Fail verification if
+            // this sequence occurs anywhere after the real one.
+            LOGE("EOCD marker occurs after start of EOCD\n");
+            fclose(f);
+            return VERIFY_FAILURE;
+        }
+    }
+
+#define BUFFER_SIZE 4096
+
+    bool need_sha1 = false;
+    bool need_sha256 = false;
+    for (i = 0; i < numKeys; ++i) {
+        switch (pKeys[i].hash_len) {
+            case SHA_DIGEST_SIZE: need_sha1 = true; break;
+            case SHA256_DIGEST_SIZE: need_sha256 = true; break;
+        }
+    }
+
+    SHA_CTX sha1_ctx;
+    SHA256_CTX sha256_ctx;
+    SHA_init(&sha1_ctx);
+    SHA256_init(&sha256_ctx);
+    unsigned char* buffer = (unsigned char*)malloc(BUFFER_SIZE);
+    if (buffer == NULL) {
+        LOGE("failed to alloc memory for sha1 buffer\n");
+        fclose(f);
+        return VERIFY_FAILURE;
+    }
+
+    double frac = -1.0;
+    size_t so_far = 0;
+    fseek(f, 0, SEEK_SET);
+    while (so_far < signed_len) {
+        size_t size = BUFFER_SIZE;
+        if (signed_len - so_far < size) size = signed_len - so_far;
+        if (fread(buffer, 1, size, f) != size) {
+            LOGE("failed to read data from %s (%s)\n", path, strerror(errno));
+            fclose(f);
+            return VERIFY_FAILURE;
+        }
+        if (need_sha1) SHA_update(&sha1_ctx, buffer, size);
+        if (need_sha256) SHA256_update(&sha256_ctx, buffer, size);
+        so_far += size;
+        double f = so_far / (double)signed_len;
+        if (f > frac + 0.02 || size == so_far) {
+            //ui->SetProgress(f);
+            frac = f;
+        }
+    }
+    fclose(f);
+    free(buffer);
+
+    const uint8_t* sha1 = SHA_final(&sha1_ctx);
+    const uint8_t* sha256 = SHA256_final(&sha256_ctx);
+
+    for (i = 0; i < numKeys; ++i) {
+        const uint8_t* hash;
+        switch (pKeys[i].hash_len) {
+            case SHA_DIGEST_SIZE: hash = sha1; break;
+            case SHA256_DIGEST_SIZE: hash = sha256; break;
+            default: continue;
+        }
+
+        // The 6 bytes is the "(signature_start) $ff $ff (comment_size)" that
+        // the signing tool appends after the signature itself.
+        if (RSA_verify(pKeys[i].public_key, eocd + eocd_size - 6 - RSANUMBYTES,
+                       RSANUMBYTES, hash, pKeys[i].hash_len)) {
+            LOGI("whole-file signature verified against key %d\n", i);
+            free(eocd);
+            return VERIFY_SUCCESS;
+        } else {
+            LOGI("failed to verify against key %d\n", i);
+        }
+		LOGI("i: %i, eocd_size: %i, RSANUMBYTES: %i\n", i, eocd_size, RSANUMBYTES);
+    }
+    free(eocd);
+    LOGE("failed to verify whole-file signature\n");
+    return VERIFY_FAILURE;
+}
+
+// Reads a file containing one or more public keys as produced by
+// DumpPublicKey:  this is an RSAPublicKey struct as it would appear
+// as a C source literal, eg:
+//
+//  "{64,0xc926ad21,{1795090719,...,-695002876},{-857949815,...,1175080310}}"
+//
+// For key versions newer than the original 2048-bit e=3 keys
+// supported by Android, the string is preceded by a version
+// identifier, eg:
+//
+//  "v2 {64,0xc926ad21,{1795090719,...,-695002876},{-857949815,...,1175080310}}"
+//
+// (Note that the braces and commas in this example are actual
+// characters the parser expects to find in the file; the ellipses
+// indicate more numbers omitted from this example.)
+//
+// The file may contain multiple keys in this format, separated by
+// commas.  The last key must not be followed by a comma.
+//
+// A Certificate is a pair of an RSAPublicKey and a particular hash
+// (we support SHA-1 and SHA-256; we store the hash length to signify
+// which is being used).  The hash used is implied by the version number.
+//
+//       1: 2048-bit RSA key with e=3 and SHA-1 hash
+//       2: 2048-bit RSA key with e=65537 and SHA-1 hash
+//       3: 2048-bit RSA key with e=3 and SHA-256 hash
+//       4: 2048-bit RSA key with e=65537 and SHA-256 hash
+//
+// Returns NULL if the file failed to parse, or if it contain zero keys.
+Certificate*
+load_keys(const char* filename, int* numKeys) {
+    Certificate* out = NULL;
+    *numKeys = 0;
+
+    FILE* f = fopen(filename, "r");
+    if (f == NULL) {
+        LOGE("opening %s: %s\n", filename, strerror(errno));
+        goto exit;
+    }
+
+    {
+        int i;
+        bool done = false;
+        while (!done) {
+            ++*numKeys;
+            out = (Certificate*)realloc(out, *numKeys * sizeof(Certificate));
+            Certificate* cert = out + (*numKeys - 1);
+            cert->public_key = (RSAPublicKey*)malloc(sizeof(RSAPublicKey));
+
+            char start_char;
+            if (fscanf(f, " %c", &start_char) != 1) goto exit;
+            if (start_char == '{') {
+                // a version 1 key has no version specifier.
+                cert->public_key->exponent = 3;
+                cert->hash_len = SHA_DIGEST_SIZE;
+            } else if (start_char == 'v') {
+                int version;
+                if (fscanf(f, "%d {", &version) != 1) goto exit;
+                switch (version) {
+                    case 2:
+                        cert->public_key->exponent = 65537;
+                        cert->hash_len = SHA_DIGEST_SIZE;
+                        break;
+                    case 3:
+                        cert->public_key->exponent = 3;
+                        cert->hash_len = SHA256_DIGEST_SIZE;
+                        break;
+                    case 4:
+                        cert->public_key->exponent = 65537;
+                        cert->hash_len = SHA256_DIGEST_SIZE;
+                        break;
+                    default:
+                        goto exit;
+                }
+            }
+
+            RSAPublicKey* key = cert->public_key;
+            if (fscanf(f, " %i , 0x%x , { %u",
+                       &(key->len), &(key->n0inv), &(key->n[0])) != 3) {
+                goto exit;
+            }
+            if (key->len != RSANUMWORDS) {
+                LOGE("key length (%d) does not match expected size\n", key->len);
+                goto exit;
+            }
+            for (i = 1; i < key->len; ++i) {
+                if (fscanf(f, " , %u", &(key->n[i])) != 1) goto exit;
+            }
+            if (fscanf(f, " } , { %u", &(key->rr[0])) != 1) goto exit;
+            for (i = 1; i < key->len; ++i) {
+                if (fscanf(f, " , %u", &(key->rr[i])) != 1) goto exit;
+            }
+            fscanf(f, " } } ");
+
+            // if the line ends in a comma, this file has more keys.
+            switch (fgetc(f)) {
+            case ',':
+                // more keys to come.
+                break;
+
+            case EOF:
+                done = true;
+                break;
+
+            default:
+                LOGE("unexpected character between keys\n");
+                goto exit;
+            }
+            LOGI("read key e=%d hash=%d\n", key->exponent, cert->hash_len);
+        }
+    }
+
+    fclose(f);
+    return out;
+
+exit:
+    if (f) fclose(f);
+    free(out);
+    *numKeys = 0;
+    return NULL;
+}
diff --git a/verifierold.h b/verifierold.h
new file mode 100644
index 0000000..d704173
--- /dev/null
+++ b/verifierold.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _RECOVERY_VERIFIER_H
+#define _RECOVERY_VERIFIER_H
+
+#include "mincrypt/rsa.h"
+
+#define ASSUMED_UPDATE_BINARY_NAME  "META-INF/com/google/android/update-binary"
+
+enum { INSTALL_SUCCESS, INSTALL_ERROR, INSTALL_CORRUPT };
+
+static const float VERIFICATION_PROGRESS_FRACTION = 0.25;
+
+typedef struct Certificate {
+    int hash_len;  // SHA_DIGEST_SIZE (SHA-1) or SHA256_DIGEST_SIZE (SHA-256)
+    RSAPublicKey* public_key;
+} Certificate;
+
+/* Look in the file for a signature footer, and verify that it
+ * matches one of the given keys.  Return one of the constants below.
+ */
+int verify_file(const char* path);
+
+Certificate* load_keys(const char* filename, int* numKeys);
+
+#define VERIFY_SUCCESS        0
+#define VERIFY_FAILURE        1
+
+#endif  /* _RECOVERY_VERIFIER_H */