ubi-utils: re-arrange directory layout

Move new-utils to ubi-utils and old ones to ubi-utils/old-utils.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

105 files changed, 2905 insertions, 2960 deletions

diff --git a/ubi-utils/.gitignore b/ubi-utils/.gitignore
index 83e8b71..4155cd1 100644
--- a/ubi-utils/.gitignore
+++ b/ubi-utils/.gitignore
@@ -1,9 +1,10 @@
-/bin2nand
-/mkbootenv
-/nand2bin
-/pddcustomize
-/pfi2bin
-/pfiflash
-/ubigen
-/ubimirror
-/unubi
+/ubiattach
+/ubicrc32
+/ubidetach
+/ubiformat
+/ubimkvol
+/ubinfo
+/ubinize
+/ubirename
+/ubirmvol
+/ubiupdatevol
diff --git a/ubi-utils/new-utils/LICENSE.libiniparser b/ubi-utils/LICENSE.libiniparser
index dbfa45d..dbfa45d 100644
--- a/ubi-utils/new-utils/LICENSE.libiniparser
+++ b/ubi-utils/LICENSE.libiniparser
diff --git a/ubi-utils/Makefile b/ubi-utils/Makefile
index 3be813a..020fe09 100644
--- a/ubi-utils/Makefile
+++ b/ubi-utils/Makefile
@@ -4,58 +4,56 @@
 
 KERNELHDR := ../include
 
-CFLAGS ?= -O2 -g -Werror
-CPPFLAGS += -I./inc -I./src -I$(KERNELHDR) \
-	-std=gnu99 -DPACKAGE_VERSION=\"1.0\"
+SUBDIRS = old-utils
 
-PERLPROGS = mkpfi ubicrc32.pl
+#CFLAGS += -Werror
+CPPFLAGS += -Iinclude -Isrc -I$(KERNELHDR)
 
-SUBDIRS = new-utils
+LIBS = libubi libmtd libubigen libiniparser libscan
+TARGETS = ubiupdatevol ubimkvol ubirmvol ubicrc32 ubinfo ubiattach \
+          ubidetach ubinize ubiformat ubirename
 
-TARGETS = pfiflash pddcustomize ubimirror bin2nand nand2bin ubigen \
-	mkbootenv unubi pfi2bin
-
-vpath   %.c ./src
+vpath %.c src
 
 include ../common.mk
 
-$(BUILDDIR)/pddcustomize: $(addprefix $(BUILDDIR)/,\
-	pddcustomize.o error.o libubimirror.o bootenv.o hashmap.o \
-	libubi.o crc32.o)
+# And the below is the rule to get final executable from its .o and common.o
+$(TARGETS): $(addprefix $(BUILDDIR)/,\
+	libubi.a common.o)
+#	$(CC) $(CFLAGS) $(filter %.o, $^) -L. -lubi -o $@
+
+$(BUILDDIR)/ubicrc32: $(addprefix $(BUILDDIR)/,\
+	ubicrc32.o crc32.o)
+#	$(CC) $(CFLAGS) -o $@ $^
 
-$(BUILDDIR)/pfiflash: $(addprefix $(BUILDDIR)/,\
-	pfiflash.o libpfiflash.o list.o reader.o error.o libubimirror.o \
-	bootenv.o hashmap.o pfi.o libubi.o crc32.o)
+$(BUILDDIR)/ubinize: $(addprefix $(BUILDDIR)/,\
+	ubinize.o common.o crc32.o libiniparser.a libubigen.a)
+#	$(CC) $(CFLAGS) $(filter %.o, $^) -L. -liniparser -lubigen -o $@
 
-$(BUILDDIR)/ubimirror: $(addprefix $(BUILDDIR)/,\
-	ubimirror.o error.o libubimirror.o bootenv.o hashmap.o \
-	libubi.o crc32.o)
+$(BUILDDIR)/ubiformat: $(addprefix $(BUILDDIR)/,\
+	ubiformat.o common.o crc32.o libmtd.a libscan.a libubi.a libubigen.a)
+#	$(CC) $(CFLAGS) $(filter %.o, $^) -L. -lmtd -lscan -lubi -lubigen -o $@
 
-$(BUILDDIR)/nand2bin: $(addprefix $(BUILDDIR)/,\
-	nand2bin.o nandecc.o nandcorr.o)
+$(BUILDDIR)/libubi.a: $(BUILDDIR)/libubi.o
 
-$(BUILDDIR)/bin2nand: $(addprefix $(BUILDDIR)/,\
-	bin2nand.o error.o nandecc.o)
+$(BUILDDIR)/libmtd.a: $(BUILDDIR)/libmtd.o
 
-$(BUILDDIR)/ubigen: $(addprefix $(BUILDDIR)/,\
-	ubigen.o libubigen.o crc32.o)
+$(BUILDDIR)/libubigen.a: $(BUILDDIR)/libubigen.o
 
-$(BUILDDIR)/mkbootenv: $(addprefix $(BUILDDIR)/,\
-	mkbootenv.o bootenv.o hashmap.o error.o crc32.o)
+$(BUILDDIR)/libiniparser.a: $(addprefix $(BUILDDIR)/,\
+	libiniparser.o dictionary.o)
 
-$(BUILDDIR)/unubi: $(addprefix $(BUILDDIR)/,\
-	unubi.o crc32.o unubi_analyze.o eb_chain.o)
+$(BUILDDIR)/libscan.a: $(addprefix $(BUILDDIR)/,\
+	libscan.o crc32.o)
 
-$(BUILDDIR)/pfi2bin: $(addprefix $(BUILDDIR)/,\
-	pfi2bin.o peb.o error.o list.o crc32.o libubigen.o bootenv.o \
-	hashmap.o reader.o pfi.o)
+clean::
+	rm -f $(addsuffix .a, $(LIBS))
 
 install::
 	mkdir -p ${DESTDIR}/${SBINDIR}
 	install -m 0755 ${TARGETS} ${DESTDIR}/${SBINDIR}/
-	(cd perl && install ${PERLPROGS} ${DESTDIR}/${SBINDIR}/)
 
 uninstall:
-	for file in ${TARGETS} ${PERLPROGS}; do \
+	for file in ${TARGETS}; do \
 		$(RM) ${DESTDIR}/${SBINDIR}/$$file; \
 	done
diff --git a/ubi-utils/new-utils/include/libiniparser.h b/ubi-utils/include/libiniparser.h
index be3c667..be3c667 100644
--- a/ubi-utils/new-utils/include/libiniparser.h
+++ b/ubi-utils/include/libiniparser.h
diff --git a/ubi-utils/new-utils/include/libmtd.h b/ubi-utils/include/libmtd.h
index d3c6a63..d3c6a63 100644
--- a/ubi-utils/new-utils/include/libmtd.h
+++ b/ubi-utils/include/libmtd.h
diff --git a/ubi-utils/new-utils/include/libscan.h b/ubi-utils/include/libscan.h
index 5afc93e..5afc93e 100644
--- a/ubi-utils/new-utils/include/libscan.h
+++ b/ubi-utils/include/libscan.h
diff --git a/ubi-utils/new-utils/include/libubi.h b/ubi-utils/include/libubi.h
index 1299e81..1299e81 100644
--- a/ubi-utils/new-utils/include/libubi.h
+++ b/ubi-utils/include/libubi.h
diff --git a/ubi-utils/new-utils/include/libubigen.h b/ubi-utils/include/libubigen.h
index c2b95b0..c2b95b0 100644
--- a/ubi-utils/new-utils/include/libubigen.h
+++ b/ubi-utils/include/libubigen.h
diff --git a/ubi-utils/new-utils/.gitignore b/ubi-utils/new-utils/.gitignore
deleted file mode 100644
index 4155cd1..0000000
--- a/ubi-utils/new-utils/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-/ubiattach
-/ubicrc32
-/ubidetach
-/ubiformat
-/ubimkvol
-/ubinfo
-/ubinize
-/ubirename
-/ubirmvol
-/ubiupdatevol
diff --git a/ubi-utils/new-utils/Makefile b/ubi-utils/new-utils/Makefile
deleted file mode 100644
index 83751e6..0000000
--- a/ubi-utils/new-utils/Makefile
+++ /dev/null
@@ -1,57 +0,0 @@
-#
-# Makefile for ubi-utils
-#
-
-KERNELHDR := ../../include
-
-#CFLAGS += -Werror
-CPPFLAGS += -Iinclude -Isrc -I$(KERNELHDR)
-
-LIBS = libubi libmtd libubigen libiniparser libscan
-TARGETS = ubiupdatevol ubimkvol ubirmvol ubicrc32 ubinfo ubiattach \
-          ubidetach ubinize ubiformat ubirename
-
-vpath %.c src
-
-include ../../common.mk
-
-# And the below is the rule to get final executable from its .o and common.o
-$(TARGETS): $(addprefix $(BUILDDIR)/,\
-	libubi.a common.o)
-#	$(CC) $(CFLAGS) $(filter %.o, $^) -L. -lubi -o $@
-
-$(BUILDDIR)/ubicrc32: $(addprefix $(BUILDDIR)/,\
-	ubicrc32.o crc32.o)
-#	$(CC) $(CFLAGS) -o $@ $^
-
-$(BUILDDIR)/ubinize: $(addprefix $(BUILDDIR)/,\
-	ubinize.o common.o crc32.o libiniparser.a libubigen.a)
-#	$(CC) $(CFLAGS) $(filter %.o, $^) -L. -liniparser -lubigen -o $@
-
-$(BUILDDIR)/ubiformat: $(addprefix $(BUILDDIR)/,\
-	ubiformat.o common.o crc32.o libmtd.a libscan.a libubi.a libubigen.a)
-#	$(CC) $(CFLAGS) $(filter %.o, $^) -L. -lmtd -lscan -lubi -lubigen -o $@
-
-$(BUILDDIR)/libubi.a: $(BUILDDIR)/libubi.o
-
-$(BUILDDIR)/libmtd.a: $(BUILDDIR)/libmtd.o
-
-$(BUILDDIR)/libubigen.a: $(BUILDDIR)/libubigen.o
-
-$(BUILDDIR)/libiniparser.a: $(addprefix $(BUILDDIR)/,\
-	libiniparser.o dictionary.o)
-
-$(BUILDDIR)/libscan.a: $(addprefix $(BUILDDIR)/,\
-	libscan.o crc32.o)
-
-clean::
-	rm -f $(addsuffix .a, $(LIBS))
-
-install::
-	mkdir -p ${DESTDIR}/${SBINDIR}
-	install -m 0755 ${TARGETS} ${DESTDIR}/${SBINDIR}/
-
-uninstall:
-	for file in ${TARGETS}; do \
-		$(RM) ${DESTDIR}/${SBINDIR}/$$file; \
-	done
diff --git a/ubi-utils/new-utils/README b/ubi-utils/new-utils/README
deleted file mode 100644
index 41c5957..0000000
--- a/ubi-utils/new-utils/README
+++ /dev/null
@@ -1,55 +0,0 @@
-This directory contains a new UBI toolchain which is intended to replace
-the old one. All utilities support "-h" option which prints sufficient
-usage information. See the MTD web-site for more information.
-
-Motivation for new tool-chain.
-
-I was doing very active UBI development and had to add new features like
-dynamic UBI devices and auto-resize feature. Because of the mess in the
-the old tools I basically could not figure out how to upgrade them. In
-my humble oppinion, they are unmaintainable. The original authors did not
-show enthusiasm when I mailed them and asked to clean-up the tool-chain
-[1]. Thus, I re-implemented them, but I did borrow things from the old
-tool-chain and preserved copyrights and author names.
-
-I really did try to clean-up the old tool chain, but gave up (see git
-history for confirmation). So,
-
-1. I found the source codes very difficult to navigate and read, especially
-   those related to pdd, pfi, and bootenv. Try to do this yourself - they
-   are a puzzle.
-2. I foud the concept of PFI needlesly complecated - PFI file is nothing
-   else but the initial configuration .ini file + the contents of the
-   UBI volumes packed into one file, but with some changes of the .ini file's
-   format. The PFI file format is not very nice and it is difficult to parse,
-   especially because the PFI headers do not tell you data star and end for
-   each data chunk, and you have to do additional parsing.
-
-   So basically, you have .ini file + images, then you transfer this to pfi,
-   which does not add any other information. For .ini you have libraries
-   which may parse them, for pfi - not. Then you have to parse this pfi
-   which adds unneeded and complex code. This all needs lists, hashmaps,
-   and so on - for no reason.
-3. I found the command line options of the utilities to be inconsistent.
-   This is OK when you script your single task and do not touch it anymore.
-   But when you have to use the utilities while developing and testing,
-   It is difficult to remember their inconsistent options.
-4. I found it wrong to add development options to user utilities like
-   "broken update". End users should not see them.
-5. I did not find any consistent style and convention inside which
-   irritated me.
-6. I found it weird to introduce needless "logging infrastructure" instead
-   of just re-directing stdout and stderr to another file.
-7. I found the tool to be rather IBM-setup oriented. For example, the VID
-   header position was hard-coded. Some utilities were just weird, like
-   mkbootenv, which changed some ethernet addresses mentioned in a
-   configuration file.
-8. Finally, it was very difficult to realize what is pfi and pdd, what for,
-   why I need this transiant pfi file when I just want to create an UBI
-   image. There was zero documentation.
-
-And so on.
-
-Feb 19, 2008, Artem Bityutskiy.
-
-[1]. http://lists.infradead.org/pipermail/linux-mtd/2007-December/020134.html
diff --git a/ubi-utils/new-utils/src/crc32.c b/ubi-utils/new-utils/src/crc32.c
deleted file mode 100644
index 6b1e50c..0000000
--- a/ubi-utils/new-utils/src/crc32.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- *  COPYRIGHT (C) 1986 Gary S. Brown.  You may use this program, or
- *  code or tables extracted from it, as desired without restriction.
- *
- *  First, the polynomial itself and its table of feedback terms.  The
- *  polynomial is
- *  X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0
- *
- *  Note that we take it "backwards" and put the highest-order term in
- *  the lowest-order bit.  The X^32 term is "implied"; the LSB is the
- *  X^31 term, etc.  The X^0 term (usually shown as "+1") results in
- *  the MSB being 1
- *
- *  Note that the usual hardware shift register implementation, which
- *  is what we're using (we're merely optimizing it by doing eight-bit
- *  chunks at a time) shifts bits into the lowest-order term.  In our
- *  implementation, that means shifting towards the right.  Why do we
- *  do it this way?  Because the calculated CRC must be transmitted in
- *  order from highest-order term to lowest-order term.  UARTs transmit
- *  characters in order from LSB to MSB.  By storing the CRC this way
- *  we hand it to the UART in the order low-byte to high-byte; the UART
- *  sends each low-bit to hight-bit; and the result is transmission bit
- *  by bit from highest- to lowest-order term without requiring any bit
- *  shuffling on our part.  Reception works similarly
- *
- *  The feedback terms table consists of 256, 32-bit entries.  Notes
- *
- *      The table can be generated at runtime if desired; code to do so
- *      is shown later.  It might not be obvious, but the feedback
- *      terms simply represent the results of eight shift/xor opera
- *      tions for all combinations of data and CRC register values
- *
- *      The values must be right-shifted by eight bits by the "updcrc
- *      logic; the shift must be unsigned (bring in zeroes).  On some
- *      hardware you could probably optimize the shift in assembler by
- *      using byte-swap instructions
- *      polynomial $edb88320
- */
-
-#include <stdint.h>
-
-const uint32_t crc32_table[256] = {
-	0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
-	0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
-	0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
-	0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
-	0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
-	0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
-	0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
-	0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
-	0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
-	0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
-	0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
-	0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
-	0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
-	0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
-	0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
-	0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
-	0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
-	0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
-	0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
-	0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
-	0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
-	0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
-	0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
-	0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
-	0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
-	0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
-	0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
-	0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
-	0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
-	0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
-	0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
-	0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
-	0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
-	0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
-	0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
-	0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
-	0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
-	0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
-	0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
-	0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
-	0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
-	0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
-	0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
-	0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
-	0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
-	0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
-	0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
-	0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
-	0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
-	0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
-	0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
-	0x2d02ef8dL
-};
diff --git a/ubi-utils/new-utils/src/crc32.h b/ubi-utils/new-utils/src/crc32.h
deleted file mode 100644
index ee3145b..0000000
--- a/ubi-utils/new-utils/src/crc32.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef CRC32_H
-#define CRC32_H
-
-#include <stdint.h>
-
-extern const uint32_t crc32_table[256];
-
-/* Return a 32-bit CRC of the contents of the buffer. */
-
-	static inline uint32_t
-crc32(uint32_t val, const void *ss, int len)
-{
-	const unsigned char *s = ss;
-	while (--len >= 0)
-		val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
-	return val;
-}
-
-#endif
diff --git a/ubi-utils/new-utils/src/libubi.c b/ubi-utils/new-utils/src/libubi.c
deleted file mode 100644
index 1aa66d8..0000000
--- a/ubi-utils/new-utils/src/libubi.c
+++ /dev/null
@@ -1,1206 +0,0 @@
-/*
- * Copyright (c) International Business Machines Corp., 2006
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Author: Artem Bityutskiy
- *
- * UBI (Unsorted Block Images) library.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include <limits.h>
-#include "libubi.h"
-#include "libubi_int.h"
-#include "common.h"
-
-#define PROGRAM_NAME "libubi"
-
-/**
- * mkpath - compose full path from 2 given components.
- * @path: the first component
- * @name: the second component
- *
- * This function returns the resulting path in case of success and %NULL in
- * case of failure.
- */
-static char *mkpath(const char *path, const char *name)
-{
-	char *n;
-	int len1 = strlen(path);
-	int len2 = strlen(name);
-
-	n = malloc(len1 + len2 + 2);
-	if (!n) {
-		sys_errmsg("cannot allocate %d bytes", len1 + len2 + 2);
-		return NULL;
-	}
-
-	memcpy(n, path, len1);
-	if (n[len1 - 1] != '/')
-		n[len1++] = '/';
-
-	memcpy(n + len1, name, len2 + 1);
-	return n;
-}
-
-/**
- * read_positive_ll - read a positive 'long long' value from a file.
- * @file: the file to read from
- * @value: the result is stored here
- *
- * This function reads file @file and interprets its contents as a positive
- * 'long long' integer. If this is not true, it fails with %EINVAL error code.
- * Returns %0 in case of success and %-1 in case of failure.
- */
-static int read_positive_ll(const char *file, long long *value)
-{
-	int fd, rd;
-	char buf[50];
-
-	fd = open(file, O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	rd = read(fd, buf, 50);
-	if (rd == -1) {
-		sys_errmsg("cannot read \"%s\"", file);
-		goto out_error;
-	}
-	if (rd == 50) {
-		errmsg("contents of \"%s\" is too long", file);
-		errno = EINVAL;
-		goto out_error;
-	}
-
-	if (sscanf(buf, "%lld\n", value) != 1) {
-		/* This must be a UBI bug */
-		errmsg("cannot read integer from \"%s\"\n", file);
-		errno = EINVAL;
-		goto out_error;
-	}
-
-	if (*value < 0) {
-		errmsg("negative value %lld in \"%s\"", *value, file);
-		errno = EINVAL;
-		goto out_error;
-	}
-
-	if (close(fd))
-		return sys_errmsg("close failed on \"%s\"", file);
-
-	return 0;
-
-out_error:
-	close(fd);
-	return -1;
-}
-
-/**
- * read_positive_int - read a positive 'int' value from a file.
- * @file: the file to read from
- * @value: the result is stored here
- *
- * This function is the same as 'read_positive_ll()', but it reads an 'int'
- * value, not 'long long'.
- */
-static int read_positive_int(const char *file, int *value)
-{
-	long long res;
-
-	if (read_positive_ll(file, &res))
-		return -1;
-
-	/* Make sure the value is not too big */
-	if (res > INT_MAX) {
-		errmsg("value %lld read from file \"%s\" is out of range",
-		       res, file);
-		errno = EINVAL;
-		return -1;
-	}
-
-	*value = res;
-	return 0;
-}
-
-/**
- * read_data - read data from a file.
- * @file: the file to read from
- * @buf: the buffer to read to
- * @buf_len: buffer length
- *
- * This function returns number of read bytes in case of success and %-1 in
- * case of failure. Note, if the file contains more then @buf_len bytes of
- * date, this function fails with %EINVAL error code.
- */
-static int read_data(const char *file, void *buf, int buf_len)
-{
-	int fd, rd, tmp, tmp1;
-
-	fd = open(file, O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	rd = read(fd, buf, buf_len);
-	if (rd == -1) {
-		sys_errmsg("cannot read \"%s\"", file);
-		goto out_error;
-	}
-
-	/* Make sure all data is read */
-	tmp1 = read(fd, &tmp, 1);
-	if (tmp1 == 1) {
-		sys_errmsg("cannot read \"%s\"", file);
-		goto out_error;
-	}
-	if (tmp1) {
-		errmsg("file \"%s\" contains too much data (> %d bytes)",
-		       file, buf_len);
-		errno = EINVAL;
-		goto out_error;
-	}
-
-	if (close(fd)) {
-		sys_errmsg("close failed on \"%s\"", file);
-		return -1;
-	}
-
-	return rd;
-
-out_error:
-	close(fd);
-	return -1;
-}
-
-/**
- * read_major - read major and minor numbers from a file.
- * @file: name of the file to read from
- * @major: major number is returned here
- * @minor: minor number is returned here
- *
- * This function returns % in case of succes, and %-1 in case of failure.
- */
-static int read_major(const char *file, int *major, int *minor)
-{
-	int ret;
-	char buf[50];
-
-	ret = read_data(file, buf, 50);
-	if (ret < 0)
-		return ret;
-
-	ret = sscanf(buf, "%d:%d\n", major, minor);
-	if (ret != 2) {
-		errno = EINVAL;
-		return errmsg("\"%s\" does not have major:minor format", file);
-	}
-
-	if (*major < 0 || *minor < 0) {
-		errno = EINVAL;
-		return errmsg("bad major:minor %d:%d in \"%s\"",
-			      *major, *minor, file);
-	}
-
-	return 0;
-}
-
-/**
- * dev_read_int - read a positive 'int' value from an UBI device sysfs file.
- * @patt: file pattern to read from
- * @dev_num:  UBI device number
- * @value: the result is stored here
- *
- * This function returns %0 in case of success and %-1 in case of failure.
- */
-static int dev_read_int(const char *patt, int dev_num, int *value)
-{
-	char file[strlen(patt) + 50];
-
-	sprintf(file, patt, dev_num);
-	return read_positive_int(file, value);
-}
-
-/**
- * vol_read_int - read a positive 'int' value from an UBI volume sysfs file.
- * @patt: file pattern to read from
- * @dev_num: UBI device number
- * @vol_id: volume ID
- * @value: the result is stored here
- *
- * This function returns %0 in case of success and %-1 in case of failure.
- */
-static int vol_read_int(const char *patt, int dev_num, int vol_id, int *value)
-{
-	char file[strlen(patt) + 100];
-
-	sprintf(file, patt, dev_num, vol_id);
-	return read_positive_int(file, value);
-}
-
-/**
- * dev_read_ll - read a positive 'long long' value from an UBI device sysfs file.
- * @patt: file pattern to read from
- * @dev_num: UBI device number
- * @value: the result is stored here
- *
- * This function returns %0 in case of success and %-1 in case of failure.
- */
-static int dev_read_ll(const char *patt, int dev_num, long long *value)
-{
-	char file[strlen(patt) + 50];
-
-	sprintf(file, patt, dev_num);
-	return read_positive_ll(file, value);
-}
-
-/**
- * vol_read_ll - read a positive 'long long' value from an UBI volume sysfs file.
- * @patt: file pattern to read from
- * @dev_num: UBI device number
- * @vol_id: volume ID
- * @value: the result is stored here
- *
- * This function returns %0 in case of success and %-1 in case of failure.
- */
-static int vol_read_ll(const char *patt, int dev_num, int vol_id,
-		       long long *value)
-{
-	char file[strlen(patt) + 100];
-
-	sprintf(file, patt, dev_num, vol_id);
-	return read_positive_ll(file, value);
-}
-
-/**
- * vol_read_data - read data from an UBI volume's sysfs file.
- * @patt: file pattern to read from
- * @dev_num: UBI device number
- * @vol_id: volume ID
- * @buf: buffer to read to
- * @buf_len: buffer length
- *
- * This function returns number of read bytes in case of success and %-1 in
- * case of failure.
- */
-static int vol_read_data(const char *patt, int dev_num, int vol_id, void *buf,
-			 int buf_len)
-{
-	char file[strlen(patt) + 100];
-
-	sprintf(file, patt, dev_num, vol_id);
-	return read_data(file, buf, buf_len);
-}
-
-/**
- * dev_get_major - get major and minor numbers of an UBI device.
- * @lib: libubi descriptor
- * @dev_num: UBI device number
- * @major: major number is returned here
- * @minor: minor number is returned here
- *
- * This function returns zero in case of succes and %-1 in case of failure.
- */
-static int dev_get_major(struct libubi *lib, int dev_num, int *major, int *minor)
-{
-	char file[strlen(lib->dev_dev) + 50];
-
-	sprintf(file, lib->dev_dev, dev_num);
-	return read_major(file, major, minor);
-}
-
-/**
- * vol_get_major - get major and minor numbers of an UBI volume.
- * @lib: libubi descriptor
- * @dev_num: UBI device number
- * @vol_id: volume ID
- * @major: major number is returned here
- * @minor: minor number is returned here
- *
- * This function returns zero in case of succes and %-1 in case of failure.
- */
-static int vol_get_major(struct libubi *lib, int dev_num, int vol_id,
-			 int *major, int *minor)
-{
-	char file[strlen(lib->vol_dev) + 100];
-
-	sprintf(file, lib->vol_dev, dev_num, vol_id);
-	return read_major(file, major, minor);
-}
-
-/**
- * vol_node2nums - find UBI device number and volume ID by volume device node
- *                 file.
- * @lib: UBI library descriptor
- * @node: UBI character device node name
- * @dev_num: UBI device number is returned here
- * @vol_id: volume ID is returned hers
- *
- * This function returns zero in case of succes and %-1 in case of failure.
- */
-static int vol_node2nums(struct libubi *lib, const char *node, int *dev_num,
-			 int *vol_id)
-{
-	struct stat st;
-	struct ubi_info info;
-	int i, fd, major, minor;
-	char file[strlen(lib->ubi_vol) + 100];
-
-	if (stat(node, &st))
-		return sys_errmsg("cannot get information about \"%s\"",
-				  node);
-
-	if (!S_ISCHR(st.st_mode)) {
-		errno = EINVAL;
-		return errmsg("\"%s\" is not a character device", node);
-	}
-
-	major = major(st.st_rdev);
-	minor = minor(st.st_rdev);
-
-	if (minor == 0) {
-		errno = EINVAL;
-		return errmsg("\"%s\" is not a volume character device", node);
-	}
-
-	if (ubi_get_info((libubi_t *)lib, &info))
-		return -1;
-
-	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
-		int major1, minor1, ret;
-
-		ret = dev_get_major(lib, i, &major1, &minor1);
-		if (ret) {
-			if (errno == ENOENT)
-				continue;
-			return -1;
-		}
-
-		if (major1 == major)
-			break;
-	}
-
-	if (i > info.highest_dev_num) {
-		errno = ENODEV;
-		return -1;
-	}
-
-	/* Make sure this UBI volume exists */
-	sprintf(file, lib->ubi_vol, i, minor - 1);
-	fd = open(file, O_RDONLY);
-	if (fd == -1) {
-		errno = ENODEV;
-		return -1;
-	}
-
-	*dev_num = i;
-	*vol_id = minor - 1;
-	errno = 0;
-	return 0;
-}
-
-/**
- * dev_node2num - find UBI device number by its character device node.
- * @lib: UBI library descriptor
- * @node: UBI character device node name
- *
- * This function returns positive UBI device number in case of success and %-1
- * in case of failure.
- */
-static int dev_node2num(struct libubi *lib, const char *node, int *dev_num)
-{
-	struct stat st;
-	struct ubi_info info;
-	int i, major, minor;
-
-	if (stat(node, &st))
-		return sys_errmsg("cannot get information about \"%s\"",
-				  node);
-
-	if (!S_ISCHR(st.st_mode)) {
-		errno = EINVAL;
-		return errmsg("\"%s\" is not a character device", node);
-	}
-
-	major = major(st.st_rdev);
-	minor = minor(st.st_rdev);
-
-	if (minor != 0) {
-		errno = EINVAL;
-		return errmsg("\"%s\" is not an UBI character device", node);
-	}
-
-	if (ubi_get_info((libubi_t *)lib, &info))
-		return -1;
-
-	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
-		int major1, minor1, ret;
-
-		ret = dev_get_major(lib, i, &major1, &minor1);
-		if (ret) {
-			if (errno == ENOENT)
-				continue;
-			return -1;
-		}
-
-		if (major1 == major) {
-			if (minor1 != 0) {
-				errmsg("UBI character device minor number is "
-				       "%d, but must be 0", minor1);
-				errno = EINVAL;
-				return -1;
-			}
-			errno = 0;
-			*dev_num = i;
-			return 0;
-		}
-	}
-
-	errno = ENODEV;
-	return -1;
-}
-
-int mtd_num2ubi_dev(libubi_t desc, int mtd_num, int *dev_num)
-{
-	struct ubi_info info;
-	int i, ret, mtd_num1;
-	struct libubi *lib = desc;
-
-	if (ubi_get_info(desc, &info))
-		return -1;
-
-	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
-		ret = dev_read_int(lib->dev_mtd_num, i, &mtd_num1);
-		if (ret) {
-			if (errno == ENOENT)
-				continue;
-			return -1;
-		}
-
-		if (mtd_num1 == mtd_num) {
-			errno = 0;
-			*dev_num = i;
-			return 0;
-		}
-	}
-
-	errno = 0;
-	return -1;
-}
-
-libubi_t libubi_open(int required)
-{
-	int fd, version;
-	struct libubi *lib;
-
-	lib = calloc(1, sizeof(struct libubi));
-	if (!lib)
-		return NULL;
-
-	/* TODO: this must be discovered instead */
-	lib->sysfs = strdup("/sys");
-	if (!lib->sysfs)
-		goto out_error;
-
-	lib->sysfs_ctrl = mkpath(lib->sysfs, SYSFS_CTRL);
-	if (!lib->sysfs_ctrl)
-		goto out_error;
-
-	lib->ctrl_dev = mkpath(lib->sysfs_ctrl, CTRL_DEV);
-	if (!lib->ctrl_dev)
-		goto out_error;
-
-	lib->sysfs_ubi = mkpath(lib->sysfs, SYSFS_UBI);
-	if (!lib->sysfs_ubi)
-		goto out_error;
-
-	/* Make sure UBI is present */
-	fd = open(lib->sysfs_ubi, O_RDONLY);
-	if (fd == -1) {
-		if (required)
-			errmsg("cannot open \"%s\", UBI does not seem to "
-			       "exist in system", lib->sysfs_ubi);
-		goto out_error;
-	}
-
-	if (close(fd)) {
-		sys_errmsg("close failed on \"%s\"", lib->sysfs_ubi);
-		goto out_error;
-	}
-
-	lib->ubi_dev = mkpath(lib->sysfs_ubi, UBI_DEV_NAME_PATT);
-	if (!lib->ubi_dev)
-		goto out_error;
-
-	lib->ubi_version = mkpath(lib->sysfs_ubi, UBI_VER);
-	if (!lib->ubi_version)
-		goto out_error;
-
-	lib->dev_dev = mkpath(lib->ubi_dev, DEV_DEV);
-	if (!lib->dev_dev)
-		goto out_error;
-
-	lib->dev_avail_ebs = mkpath(lib->ubi_dev, DEV_AVAIL_EBS);
-	if (!lib->dev_avail_ebs)
-		goto out_error;
-
-	lib->dev_total_ebs = mkpath(lib->ubi_dev, DEV_TOTAL_EBS);
-	if (!lib->dev_total_ebs)
-		goto out_error;
-
-	lib->dev_bad_count = mkpath(lib->ubi_dev, DEV_BAD_COUNT);
-	if (!lib->dev_bad_count)
-		goto out_error;
-
-	lib->dev_eb_size = mkpath(lib->ubi_dev, DEV_EB_SIZE);
-	if (!lib->dev_eb_size)
-		goto out_error;
-
-	lib->dev_max_ec = mkpath(lib->ubi_dev, DEV_MAX_EC);
-	if (!lib->dev_max_ec)
-		goto out_error;
-
-	lib->dev_bad_rsvd = mkpath(lib->ubi_dev, DEV_MAX_RSVD);
-	if (!lib->dev_bad_rsvd)
-		goto out_error;
-
-	lib->dev_max_vols = mkpath(lib->ubi_dev, DEV_MAX_VOLS);
-	if (!lib->dev_max_vols)
-		goto out_error;
-
-	lib->dev_min_io_size = mkpath(lib->ubi_dev, DEV_MIN_IO_SIZE);
-	if (!lib->dev_min_io_size)
-		goto out_error;
-
-	lib->dev_mtd_num = mkpath(lib->ubi_dev, DEV_MTD_NUM);
-	if (!lib->dev_mtd_num)
-		goto out_error;
-
-	lib->ubi_vol = mkpath(lib->sysfs_ubi, UBI_VOL_NAME_PATT);
-	if (!lib->ubi_vol)
-		goto out_error;
-
-	lib->vol_type = mkpath(lib->ubi_vol, VOL_TYPE);
-	if (!lib->vol_type)
-		goto out_error;
-
-	lib->vol_dev = mkpath(lib->ubi_vol, VOL_DEV);
-	if (!lib->vol_dev)
-		goto out_error;
-
-	lib->vol_alignment = mkpath(lib->ubi_vol, VOL_ALIGNMENT);
-	if (!lib->vol_alignment)
-		goto out_error;
-
-	lib->vol_data_bytes = mkpath(lib->ubi_vol, VOL_DATA_BYTES);
-	if (!lib->vol_data_bytes)
-		goto out_error;
-
-	lib->vol_rsvd_ebs = mkpath(lib->ubi_vol, VOL_RSVD_EBS);
-	if (!lib->vol_rsvd_ebs)
-		goto out_error;
-
-	lib->vol_eb_size = mkpath(lib->ubi_vol, VOL_EB_SIZE);
-	if (!lib->vol_eb_size)
-		goto out_error;
-
-	lib->vol_corrupted = mkpath(lib->ubi_vol, VOL_CORRUPTED);
-	if (!lib->vol_corrupted)
-		goto out_error;
-
-	lib->vol_name = mkpath(lib->ubi_vol, VOL_NAME);
-	if (!lib->vol_name)
-		goto out_error;
-
-	if (read_positive_int(lib->ubi_version, &version))
-		goto out_error;
-	if (version != LIBUBI_UBI_VERSION) {
-		errmsg("this library was made for UBI version %d, but UBI "
-		       "version %d is detected\n", LIBUBI_UBI_VERSION, version);
-		goto out_error;
-	}
-
-	return lib;
-
-out_error:
-	libubi_close((libubi_t)lib);
-	return NULL;
-}
-
-void libubi_close(libubi_t desc)
-{
-	struct libubi *lib = (struct libubi *)desc;
-
-	free(lib->vol_name);
-	free(lib->vol_corrupted);
-	free(lib->vol_eb_size);
-	free(lib->vol_rsvd_ebs);
-	free(lib->vol_data_bytes);
-	free(lib->vol_alignment);
-	free(lib->vol_dev);
-	free(lib->vol_type);
-	free(lib->ubi_vol);
-	free(lib->dev_mtd_num);
-	free(lib->dev_min_io_size);
-	free(lib->dev_max_vols);
-	free(lib->dev_bad_rsvd);
-	free(lib->dev_max_ec);
-	free(lib->dev_eb_size);
-	free(lib->dev_bad_count);
-	free(lib->dev_total_ebs);
-	free(lib->dev_avail_ebs);
-	free(lib->dev_dev);
-	free(lib->ubi_version);
-	free(lib->ubi_dev);
-	free(lib->sysfs_ubi);
-	free(lib->ctrl_dev);
-	free(lib->sysfs_ctrl);
-	free(lib->sysfs);
-	free(lib);
-}
-
-int ubi_attach_mtd(libubi_t desc, const char *node,
-		   struct ubi_attach_request *req)
-{
-	int fd, ret;
-	struct ubi_attach_req r;
-
-	memset(&r, sizeof(struct ubi_attach_req), '\0');
-
-	desc = desc;
-	r.ubi_num = req->dev_num;
-	r.mtd_num = req->mtd_num;
-	r.vid_hdr_offset = req->vid_hdr_offset;
-
-	fd = open(node, O_RDONLY);
-	if (fd == -1)
-		return sys_errmsg("cannot open \"%s\"", node);
-
-	ret = ioctl(fd, UBI_IOCATT, &r);
-	close(fd);
-	if (ret == -1)
-		return -1;
-
-	req->dev_num = r.ubi_num;
-
-#ifdef UDEV_SETTLE_HACK
-	if (system("udevsettle") == -1)
-		return -1;
-#endif
-
-	return ret;
-}
-
-int ubi_detach_mtd(libubi_t desc, const char *node, int mtd_num)
-{
-	int ret, ubi_dev;
-
-	ret = mtd_num2ubi_dev(desc, mtd_num, &ubi_dev);
-	if (ret == -1) {
-		errno = ENODEV;
-		return ret;
-	}
-
-	return ubi_remove_dev(desc, node, ubi_dev);
-}
-
-int ubi_remove_dev(libubi_t desc, const char *node, int ubi_dev)
-{
-	int fd, ret;
-
-	desc = desc;
-
-	fd = open(node, O_RDONLY);
-	if (fd == -1)
-		return sys_errmsg("cannot open \"%s\"", node);
-	ret = ioctl(fd, UBI_IOCDET, &ubi_dev);
-	if (ret == -1)
-		goto out_close;
-
-#ifdef UDEV_SETTLE_HACK
-	if (system("udevsettle") == -1)
-		return -1;
-#endif
-
-out_close:
-	close(fd);
-	return ret;
-}
-
-int ubi_node_type(libubi_t desc, const char *node)
-{
-	struct stat st;
-	struct ubi_info info;
-	int i, fd, major, minor;
-	struct libubi *lib = (struct libubi *)desc;
-	char file[strlen(lib->ubi_vol) + 100];
-
-	if (stat(node, &st))
-		return sys_errmsg("cannot get information about \"%s\"",
-				  node);
-
-	if (!S_ISCHR(st.st_mode)) {
-		errmsg("\"%s\" is not a character device", node);
-		errno = EINVAL;
-		return -1;
-	}
-
-	major = major(st.st_rdev);
-	minor = minor(st.st_rdev);
-
-	if (ubi_get_info((libubi_t *)lib, &info))
-		return -1;
-
-	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
-		int major1, minor1, ret;
-
-		ret = dev_get_major(lib, i, &major1, &minor1);
-		if (ret) {
-			if (errno == ENOENT)
-				continue;
-			if (!errno)
-				goto out_not_ubi;
-			return -1;
-		}
-
-		if (major1 == major)
-			break;
-	}
-
-	if (i > info.highest_dev_num)
-		goto out_not_ubi;
-
-	if (minor == 0)
-		return 1;
-
-	/* This is supposdely an UBI volume device node */
-	sprintf(file, lib->ubi_vol, i, minor - 1);
-	fd = open(file, O_RDONLY);
-	if (fd == -1) {
-		sys_errmsg("cannot open \"%s\"", node);
-		return -1;
-	}
-
-	return 2;
-
-out_not_ubi:
-	errmsg("\"%s\" has major:minor %d:%d, but this does not correspond to "
-	       "any UBI device or volume", node, major, minor);
-	errno = 0;
-	return -1;
-}
-
-int ubi_get_info(libubi_t desc, struct ubi_info *info)
-{
-	DIR *sysfs_ubi;
-	struct dirent *dirent;
-	struct libubi *lib = (struct libubi *)desc;
-
-	memset(info, '\0', sizeof(struct ubi_info));
-
-	if (read_major(lib->ctrl_dev, &info->ctrl_major, &info->ctrl_minor)) {
-		/*
-		 * Older UBI versions did not have control device, so we do not
-		 * panic here for compatibility reasons. May be few years later
-		 * we could return -1 here, but for now just set major:minor to
-		 * -1.
-		 */
-		info->ctrl_major = info->ctrl_minor = -1;
-	}
-
-	/*
-	 * We have to scan the UBI sysfs directory to identify how many UBI
-	 * devices are present.
-	 */
-	sysfs_ubi = opendir(lib->sysfs_ubi);
-	if (!sysfs_ubi)
-		return -1;
-
-	info->lowest_dev_num = INT_MAX;
-	while (1) {
-		int dev_num, ret;
-		char tmp_buf[256];
-
-		errno = 0;
-		dirent = readdir(sysfs_ubi);
-		if (!dirent)
-			break;
-
-		if (strlen(dirent->d_name) > 256) {
-			errmsg("invalid entry in %s: \"%s\"",
-			       lib->sysfs_ubi, dirent->d_name);
-			goto out_close;
-		}
-
-		ret = sscanf(dirent->d_name, UBI_DEV_NAME_PATT"%s",
-			     &dev_num, tmp_buf);
-		if (ret == 1) {
-			info->dev_count += 1;
-			if (dev_num > info->highest_dev_num)
-				info->highest_dev_num = dev_num;
-			if (dev_num < info->lowest_dev_num)
-				info->lowest_dev_num = dev_num;
-		}
-	}
-
-	if (!dirent && errno) {
-		sys_errmsg("readdir failed on \"%s\"", lib->sysfs_ubi);
-		goto out_close;
-	}
-
-	if (closedir(sysfs_ubi))
-		return sys_errmsg("closedir failed on \"%s\"", lib->sysfs_ubi);
-
-	if (info->lowest_dev_num == INT_MAX)
-		info->lowest_dev_num = 0;
-
-	if (read_positive_int(lib->ubi_version, &info->version))
-		return -1;
-
-	return 0;
-
-out_close:
-	closedir(sysfs_ubi);
-	return -1;
-}
-
-int ubi_mkvol(libubi_t desc, const char *node, struct ubi_mkvol_request *req)
-{
-	int fd, ret;
-	struct ubi_mkvol_req r;
-	size_t n;
-
-	memset(&r, sizeof(struct ubi_mkvol_req), '\0');
-
-	desc = desc;
-	r.vol_id = req->vol_id;
-	r.alignment = req->alignment;
-	r.bytes = req->bytes;
-	r.vol_type = req->vol_type;
-
-	n = strlen(req->name);
-	if (n > UBI_MAX_VOLUME_NAME)
-		return -1;
-
-	strncpy(r.name, req->name, UBI_MAX_VOLUME_NAME + 1);
-	r.name_len = n;
-
-	fd = open(node, O_RDONLY);
-	if (fd == -1)
-		return sys_errmsg("cannot open \"%s\"", node);
-
-	ret = ioctl(fd, UBI_IOCMKVOL, &r);
-	if (ret == -1)
-		goto out_close;
-
-	req->vol_id = r.vol_id;
-
-#ifdef UDEV_SETTLE_HACK
-	if (system("udevsettle") == -1)
-		return -1;
-#endif
-
-out_close:
-	close(fd);
-	return ret;
-}
-
-int ubi_rmvol(libubi_t desc, const char *node, int vol_id)
-{
-	int fd, ret;
-
-	desc = desc;
-	fd = open(node, O_RDONLY);
-	if (fd == -1)
-		return sys_errmsg("cannot open \"%s\"", node);
-
-	ret = ioctl(fd, UBI_IOCRMVOL, &vol_id);
-	if (ret == -1)
-		goto out_close;
-
-#ifdef UDEV_SETTLE_HACK
-	if (system("udevsettle") == -1)
-		return -1;
-#endif
-
-out_close:
-	close(fd);
-	return ret;
-}
-
-int ubi_rnvols(libubi_t desc, const char *node, struct ubi_rnvol_req *rnvol)
-{
-	int fd, ret;
-
-	fd = open(node, O_RDONLY);
-	if (fd == -1)
-		return -1;
-	ret = ioctl(fd, UBI_IOCRNVOL, rnvol);
-	if (ret == -1)
-		goto out_close;
-
-#ifdef UDEV_SETTLE_HACK
-	if (system("udevsettle") == -1)
-		return -1;
-#endif
-
-out_close:
-	close(fd);
-	return ret;
-}
-
-int ubi_rsvol(libubi_t desc, const char *node, int vol_id, long long bytes)
-{
-	int fd, ret;
-	struct ubi_rsvol_req req;
-
-	desc = desc;
-	fd = open(node, O_RDONLY);
-	if (fd == -1)
-		return sys_errmsg("cannot open \"%s\"", node);
-
-	req.bytes = bytes;
-	req.vol_id = vol_id;
-
-	ret = ioctl(fd, UBI_IOCRSVOL, &req);
-	close(fd);
-	return ret;
-}
-
-int ubi_update_start(libubi_t desc, int fd, long long bytes)
-{
-	desc = desc;
-	if (ioctl(fd, UBI_IOCVOLUP, &bytes))
-		return -1;
-	return 0;
-}
-
-int ubi_leb_change_start(libubi_t desc, int fd, int lnum, int bytes, int dtype)
-{
-	struct ubi_leb_change_req req;
-
-	desc = desc;
-	memset(&req, 0, sizeof(struct ubi_leb_change_req));
-	req.lnum = lnum;
-	req.bytes = bytes;
-	req.dtype = dtype;
-
-	if (ioctl(fd, UBI_IOCEBCH, &req))
-		return -1;
-	return 0;
-}
-
-int ubi_get_dev_info1(libubi_t desc, int dev_num, struct ubi_dev_info *info)
-{
-	DIR *sysfs_ubi;
-	struct dirent *dirent;
-	struct libubi *lib = (struct libubi *)desc;
-
-	memset(info, '\0', sizeof(struct ubi_dev_info));
-	info->dev_num = dev_num;
-
-	sysfs_ubi = opendir(lib->sysfs_ubi);
-	if (!sysfs_ubi)
-		return -1;
-
-	info->lowest_vol_id = INT_MAX;
-
-	while (1) {
-		int vol_id, ret, devno;
-		char tmp_buf[256];
-
-		errno = 0;
-		dirent = readdir(sysfs_ubi);
-		if (!dirent)
-			break;
-
-		if (strlen(dirent->d_name) > 256) {
-			errmsg("invalid entry in %s: \"%s\"",
-			       lib->sysfs_ubi, dirent->d_name);
-			goto out_close;
-		}
-
-		ret = sscanf(dirent->d_name, UBI_VOL_NAME_PATT"%s", &devno, &vol_id, tmp_buf);
-		if (ret == 2 && devno == dev_num) {
-			info->vol_count += 1;
-			if (vol_id > info->highest_vol_id)
-				info->highest_vol_id = vol_id;
-			if (vol_id < info->lowest_vol_id)
-				info->lowest_vol_id = vol_id;
-		}
-	}
-
-	if (!dirent && errno) {
-		sys_errmsg("readdir failed on \"%s\"", lib->sysfs_ubi);
-		goto out_close;
-	}
-
-	if (closedir(sysfs_ubi))
-		return sys_errmsg("closedir failed on \"%s\"", lib->sysfs_ubi);
-
-	if (info->lowest_vol_id == INT_MAX)
-		info->lowest_vol_id = 0;
-
-	if (dev_get_major(lib, dev_num, &info->major, &info->minor))
-		return -1;
-
-	if (dev_read_int(lib->dev_avail_ebs, dev_num, &info->avail_lebs))
-		return -1;
-	if (dev_read_int(lib->dev_total_ebs, dev_num, &info->total_lebs))
-		return -1;
-	if (dev_read_int(lib->dev_bad_count, dev_num, &info->bad_count))
-		return -1;
-	if (dev_read_int(lib->dev_eb_size, dev_num, &info->leb_size))
-		return -1;
-	if (dev_read_int(lib->dev_bad_rsvd, dev_num, &info->bad_rsvd))
-		return -1;
-	if (dev_read_ll(lib->dev_max_ec, dev_num, &info->max_ec))
-		return -1;
-	if (dev_read_int(lib->dev_max_vols, dev_num, &info->max_vol_count))
-		return -1;
-	if (dev_read_int(lib->dev_min_io_size, dev_num, &info->min_io_size))
-		return -1;
-
-	info->avail_bytes = info->avail_lebs * info->leb_size;
-	info->total_bytes = info->total_lebs * info->leb_size;
-
-	return 0;
-
-out_close:
-	closedir(sysfs_ubi);
-	return -1;
-}
-
-int ubi_get_dev_info(libubi_t desc, const char *node, struct ubi_dev_info *info)
-{
-	int dev_num;
-	struct libubi *lib = (struct libubi *)desc;
-
-	if (dev_node2num(lib, node, &dev_num))
-		return -1;
-
-	return ubi_get_dev_info1(desc, dev_num, info);
-}
-
-int ubi_get_vol_info1(libubi_t desc, int dev_num, int vol_id,
-		      struct ubi_vol_info *info)
-{
-	int ret;
-	struct libubi *lib = (struct libubi *)desc;
-	char buf[50];
-
-	memset(info, '\0', sizeof(struct ubi_vol_info));
-	info->dev_num = dev_num;
-	info->vol_id = vol_id;
-
-	if (dev_get_major(lib, dev_num, &info->dev_major, &info->dev_minor))
-		return -1;
-	if (vol_get_major(lib, dev_num, vol_id, &info->major, &info->minor))
-		return -1;
-
-	ret = vol_read_data(lib->vol_type, dev_num, vol_id, buf, 50);
-	if (ret < 0)
-		return -1;
-
-	if (strncmp(buf, "static\n", ret) == 0)
-		info->type = UBI_STATIC_VOLUME;
-	else if (strncmp(buf, "dynamic\n", ret) == 0)
-		info->type = UBI_DYNAMIC_VOLUME;
-	else {
-		errmsg("bad value at \"%s\"", buf);
-		errno = EINVAL;
-		return -1;
-	}
-
-	ret = vol_read_int(lib->vol_alignment, dev_num, vol_id,
-			   &info->alignment);
-	if (ret)
-		return -1;
-	ret = vol_read_ll(lib->vol_data_bytes, dev_num, vol_id,
-			  &info->data_bytes);
-	if (ret)
-		return -1;
-	ret = vol_read_int(lib->vol_rsvd_ebs, dev_num, vol_id, &info->rsvd_lebs);
-	if (ret)
-		return -1;
-	ret = vol_read_int(lib->vol_eb_size, dev_num, vol_id, &info->leb_size);
-	if (ret)
-		return -1;
-	ret = vol_read_int(lib->vol_corrupted, dev_num, vol_id,
-			   &info->corrupted);
-	if (ret)
-		return -1;
-	info->rsvd_bytes = info->leb_size * info->rsvd_lebs;
-
-	ret = vol_read_data(lib->vol_name, dev_num, vol_id, &info->name,
-			    UBI_VOL_NAME_MAX + 2);
-	if (ret < 0)
-		return -1;
-
-	info->name[ret - 1] = '\0';
-	return 0;
-}
-
-int ubi_get_vol_info(libubi_t desc, const char *node, struct ubi_vol_info *info)
-{
-	int vol_id, dev_num;
-	struct libubi *lib = (struct libubi *)desc;
-
-	if (vol_node2nums(lib, node, &dev_num, &vol_id))
-		return -1;
-
-	return ubi_get_vol_info1(desc, dev_num, vol_id, info);
-}
-
-int ubi_get_vol_info1_nm(libubi_t desc, int dev_num, const char *name,
-			 struct ubi_vol_info *info)
-{
-	int i, err;
-	unsigned int nlen = strlen(name);
-	struct ubi_dev_info dev_info;
-
-	if (nlen == 0) {
-		errmsg("bad \"name\" input parameter");
-		errno = EINVAL;
-		return -1;
-	}
-
-	err = ubi_get_dev_info1(desc, dev_num, &dev_info);
-	if (err)
-		return err;
-
-	for (i = dev_info.lowest_vol_id;
-	     i <= dev_info.highest_vol_id; i++) {
-		err = ubi_get_vol_info1(desc, dev_num, i, info);
-		if (err == -1) {
-			if (errno == ENOENT)
-				continue;
-			return -1;
-		}
-
-		if (nlen == strlen(info->name) && !strcmp(name, info->name))
-			return 0;
-	}
-
-	errno = ENOENT;
-	return -1;
-}
diff --git a/ubi-utils/new-utils/src/libubigen.c b/ubi-utils/new-utils/src/libubigen.c
deleted file mode 100644
index 91bb274..0000000
--- a/ubi-utils/new-utils/src/libubigen.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- * Copyright (c) International Business Machines Corp., 2006
- * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*
- * Generating UBI images.
- *
- * Authors: Oliver Lohmann
- *          Artem Bityutskiy
- */
-
-#include <stdlib.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <string.h>
-
-#include <mtd/ubi-media.h>
-#include <mtd_swab.h>
-#include <libubigen.h>
-#include "crc32.h"
-#include "common.h"
-
-#define PROGRAM_NAME "libubigen"
-
-/**
- * ubigen_info_init - initialize libubigen.
- * @ui: libubigen information
- * @peb_size: flash physical eraseblock size
- * @min_io_size: flash minimum input/output unit size
- * @subpage_size: flash sub-page, if present (has to be equivalent to
- *                @min_io_size if does not exist)
- * @vid_hdr_offs: offset of the VID header
- * @ubi_ver: UBI version
- */
-void ubigen_info_init(struct ubigen_info *ui, int peb_size, int min_io_size,
-		      int subpage_size, int vid_hdr_offs, int ubi_ver)
-{
-	if (!vid_hdr_offs) {
-		vid_hdr_offs = UBI_EC_HDR_SIZE + subpage_size - 1;
-		vid_hdr_offs /= subpage_size;
-		vid_hdr_offs *= subpage_size;
-	}
-
-	ui->peb_size = peb_size;
-	ui->min_io_size = min_io_size;
-	ui->vid_hdr_offs = vid_hdr_offs;
-	ui->data_offs = vid_hdr_offs + UBI_VID_HDR_SIZE + min_io_size - 1;
-	ui->data_offs /= min_io_size;
-	ui->data_offs *= min_io_size;
-	ui->leb_size = peb_size - ui->data_offs;
-	ui->ubi_ver = ubi_ver;
-
-	ui->max_volumes = ui->leb_size / UBI_VTBL_RECORD_SIZE;
-	if (ui->max_volumes > UBI_MAX_VOLUMES)
-		ui->max_volumes = UBI_MAX_VOLUMES;
-	ui->vtbl_size = ui->max_volumes * UBI_VTBL_RECORD_SIZE;
-}
-
-/**
- * ubigen_create_empty_vtbl - creates empty volume table.
- *
- * This function creates an empty volume table and returns a pointer to it in
- * case of success and %NULL in case of failure. The returned object has to be
- * freed with 'free()' call.
- */
-struct ubi_vtbl_record *ubigen_create_empty_vtbl(const struct ubigen_info *ui)
-{
-	struct ubi_vtbl_record *vtbl;
-	int i;
-
-	vtbl = calloc(1, ui->vtbl_size);
-	if (!vtbl) {
-		sys_errmsg("cannot allocate %d bytes of memory", ui->vtbl_size);
-		return NULL;
-	}
-
-	for (i = 0; i < ui->max_volumes; i++) {
-		uint32_t crc = crc32(UBI_CRC32_INIT, &vtbl[i],
-				     UBI_VTBL_RECORD_SIZE_CRC);
-		vtbl[i].crc = cpu_to_be32(crc);
-	}
-
-	return vtbl;
-}
-
-/**
- * ubigen_add_volume - add a volume to the volume table.
- * @ui: libubigen information
- * @vi: volume information
- * @vtbl: volume table to add to
- *
- * This function adds volume described by input parameters to the volume table
- * @vtbl.
- */
-int ubigen_add_volume(const struct ubigen_info *ui,
-		      const struct ubigen_vol_info *vi,
-		      struct ubi_vtbl_record *vtbl)
-{
-	struct ubi_vtbl_record *vtbl_rec = &vtbl[vi->id];
-	uint32_t tmp;
-
-	if (vi->id >= ui->max_volumes)
-		return errmsg("too high volume id %d, max. volumes is %d",
-			      vi->id, ui->max_volumes);
-
-	if (vi->alignment >= ui->leb_size)
-		return errmsg("too large alignment %d, max is %d (LEB size)",
-			      vi->alignment, ui->leb_size);
-
-	memset(vtbl_rec, '\0', sizeof(struct ubi_vtbl_record));
-	tmp = (vi->bytes + ui->leb_size - 1) / ui->leb_size;
-	vtbl_rec->reserved_pebs = cpu_to_be32(tmp);
-	vtbl_rec->alignment = cpu_to_be32(vi->alignment);
-	vtbl_rec->vol_type = vi->type;
-	tmp = ui->leb_size % vi->alignment;
-	vtbl_rec->data_pad = cpu_to_be32(tmp);
-	vtbl_rec->flags = vi->flags;
-
-	memcpy(vtbl_rec->name, vi->name, vi->name_len);
-	vtbl_rec->name[vi->name_len] = '\0';
-	vtbl_rec->name_len = cpu_to_be16(vi->name_len);
-
-	tmp = crc32(UBI_CRC32_INIT, vtbl_rec, UBI_VTBL_RECORD_SIZE_CRC);
-	vtbl_rec->crc =	 cpu_to_be32(tmp);
-	return 0;
-}
-
-/**
- * ubigen_init_ec_hdr - initialize EC header.
- * @ui: libubigen information
- * @hdr: the EC header to initialize
- * @ec: erase counter value
- */
-void ubigen_init_ec_hdr(const struct ubigen_info *ui,
-		        struct ubi_ec_hdr *hdr, long long ec)
-{
-	uint32_t crc;
-
-	memset(hdr, '\0', sizeof(struct ubi_ec_hdr));
-
-	hdr->magic = cpu_to_be32(UBI_EC_HDR_MAGIC);
-	hdr->version = ui->ubi_ver;
-	hdr->ec = cpu_to_be64(ec);
-	hdr->vid_hdr_offset = cpu_to_be32(ui->vid_hdr_offs);
-
-	hdr->data_offset = cpu_to_be32(ui->data_offs);
-
-	crc = crc32(UBI_CRC32_INIT, hdr, UBI_EC_HDR_SIZE_CRC);
-	hdr->hdr_crc = cpu_to_be32(crc);
-}
-
-/**
- * init_vid_hdr - initialize VID header.
- * @ui: libubigen information
- * @vi: volume information
- * @hdr: the VID header to initialize
- * @lnum: logical eraseblock number
- * @data: the contents of the LEB (static volumes only)
- * @data_size: amount of data in this LEB (static volumes only)
- *
- * Note, @used_ebs, @data and @data_size are ignored in case of dynamic
- * volumes.
- */
-static void init_vid_hdr(const struct ubigen_info *ui,
-			 const struct ubigen_vol_info *vi,
-			 struct ubi_vid_hdr *hdr, int lnum,
-			 const void *data, int data_size)
-{
-	uint32_t crc;
-
-	memset(hdr, '\0', sizeof(struct ubi_vid_hdr));
-
-	hdr->magic = cpu_to_be32(UBI_VID_HDR_MAGIC);
-	hdr->version = ui->ubi_ver;
-	hdr->vol_type = vi->type;
-	hdr->vol_id = cpu_to_be32(vi->id);
-	hdr->lnum = cpu_to_be32(lnum);
-	hdr->data_pad = cpu_to_be32(vi->data_pad);
-	hdr->compat = vi->compat;
-
-	if (vi->type == UBI_VID_STATIC) {
-		hdr->data_size = cpu_to_be32(data_size);
-		hdr->used_ebs = cpu_to_be32(vi->used_ebs);
-		crc = crc32(UBI_CRC32_INIT, data, data_size);
-		hdr->data_crc = cpu_to_be32(crc);
-	}
-
-	crc = crc32(UBI_CRC32_INIT, hdr, UBI_VID_HDR_SIZE_CRC);
-	hdr->hdr_crc = cpu_to_be32(crc);
-}
-
-/**
- * ubigen_write_volume - write UBI volume.
- * @ui: libubigen information
- * @vi: volume information
- * @ec: erase coutner value to put to EC headers
- * @bytes: volume size in bytes
- * @in: input file descriptor (has to be properly seeked)
- * @out: output file descriptor
- *
- * This function reads the contents of the volume from the input file @in and
- * writes the UBI volume to the output file @out. Returns zero on success and
- * %-1 on failure.
- */
-int ubigen_write_volume(const struct ubigen_info *ui,
-			const struct ubigen_vol_info *vi, long long ec,
-			long long bytes, int in, int out)
-{
-	int len = vi->usable_leb_size, rd, lnum = 0;
-	char inbuf[ui->leb_size], outbuf[ui->peb_size];
-
-	if (vi->id >= ui->max_volumes)
-		return errmsg("too high volume id %d, max. volumes is %d",
-			      vi->id, ui->max_volumes);
-
-	if (vi->alignment >= ui->leb_size)
-		return errmsg("too large alignment %d, max is %d (LEB size)",
-			      vi->alignment, ui->leb_size);
-
-	memset(outbuf, 0xFF, ui->data_offs);
-	ubigen_init_ec_hdr(ui, (struct ubi_ec_hdr *)outbuf, ec);
-
-	while (bytes) {
-		int l;
-		struct ubi_vid_hdr *vid_hdr;
-
-		if (bytes < len)
-			len = bytes;
-		bytes -= len;
-
-		l = len;
-		do {
-			rd = read(in, inbuf + len - l, l);
-			if (rd != l)
-				return sys_errmsg("cannot read %d bytes from the input file", l);
-
-			l -= rd;
-		} while (l);
-
-		vid_hdr = (struct ubi_vid_hdr *)(&outbuf[ui->vid_hdr_offs]);
-		init_vid_hdr(ui, vi, vid_hdr, lnum, inbuf, len);
-
-		memcpy(outbuf + ui->data_offs, inbuf, len);
-		memset(outbuf + ui->data_offs + len, 0xFF,
-		       ui->peb_size - ui->data_offs - len);
-
-		if (write(out, outbuf, ui->peb_size) != ui->peb_size)
-			return sys_errmsg("cannot write %d bytes to the output file", ui->peb_size);
-
-		lnum += 1;
-	}
-
-	return 0;
-}
-
-/**
- * ubigen_write_layout_vol - write UBI layout volume
- * @ui: libubigen information
- * @peb1: physical eraseblock number to write the first volume table copy
- * @peb2: physical eraseblock number to write the second volume table copy
- * @ec1: erase counter value for @peb1
- * @ec2: erase counter value for @peb1
- * @vtbl: volume table
- * @fd: output file descriptor seeked to the proper position
- *
- * This function creates the UBI layout volume which contains 2 copies of the
- * volume table. Returns zero in case of success and %-1 in case of failure.
- */
-int ubigen_write_layout_vol(const struct ubigen_info *ui, int peb1, int peb2,
-			    long long ec1, long long ec2,
-			    struct ubi_vtbl_record *vtbl, int fd)
-{
-	int ret;
-	struct ubigen_vol_info vi;
-	char outbuf[ui->peb_size];
-	struct ubi_vid_hdr *vid_hdr;
-	off_t seek;
-
-	vi.bytes = ui->leb_size * UBI_LAYOUT_VOLUME_EBS;
-	vi.id = UBI_LAYOUT_VOLUME_ID;
-	vi.alignment = UBI_LAYOUT_VOLUME_ALIGN;
-	vi.data_pad = ui->leb_size % UBI_LAYOUT_VOLUME_ALIGN;
-	vi.usable_leb_size = ui->leb_size - vi.data_pad;
-	vi.data_pad = ui->leb_size - vi.usable_leb_size;
-	vi.type = UBI_LAYOUT_VOLUME_TYPE;
-	vi.name = UBI_LAYOUT_VOLUME_NAME;
-	vi.name_len = strlen(UBI_LAYOUT_VOLUME_NAME);
-	vi.compat = UBI_LAYOUT_VOLUME_COMPAT;
-
-	memset(outbuf, 0xFF, ui->data_offs);
-	vid_hdr = (struct ubi_vid_hdr *)(&outbuf[ui->vid_hdr_offs]);
-	memcpy(outbuf + ui->data_offs, vtbl, ui->vtbl_size);
-	memset(outbuf + ui->data_offs + ui->vtbl_size, 0xFF,
-	       ui->peb_size - ui->data_offs - ui->vtbl_size);
-
-	seek = peb1 * ui->peb_size;
-	if (lseek(fd, seek, SEEK_SET) != seek)
-		return sys_errmsg("cannot seek output file");
-	ubigen_init_ec_hdr(ui, (struct ubi_ec_hdr *)outbuf, ec1);
-	init_vid_hdr(ui, &vi, vid_hdr, 0, NULL, 0);
-	ret = write(fd, outbuf, ui->peb_size);
-	if (ret != ui->peb_size)
-		return sys_errmsg("cannot write %d bytes", ui->peb_size);
-
-	seek = peb2 * ui->peb_size;
-	if (lseek(fd, seek, SEEK_SET) != seek)
-		return sys_errmsg("cannot seek output file");
-	ubigen_init_ec_hdr(ui, (struct ubi_ec_hdr *)outbuf, ec2);
-	init_vid_hdr(ui, &vi, vid_hdr, 1, NULL, 0);
-	ret = write(fd, outbuf, ui->peb_size);
-	if (ret != ui->peb_size)
-		return sys_errmsg("cannot write %d bytes", ui->peb_size);
-
-	return 0;
-}
diff --git a/ubi-utils/old-utils/.gitignore b/ubi-utils/old-utils/.gitignore
new file mode 100644
index 0000000..83e8b71
--- /dev/null
+++ b/ubi-utils/old-utils/.gitignore
@@ -0,0 +1,9 @@
+/bin2nand
+/mkbootenv
+/nand2bin
+/pddcustomize
+/pfi2bin
+/pfiflash
+/ubigen
+/ubimirror
+/unubi
diff --git a/ubi-utils/old-utils/Makefile b/ubi-utils/old-utils/Makefile
new file mode 100644
index 0000000..5d20592
--- /dev/null
+++ b/ubi-utils/old-utils/Makefile
@@ -0,0 +1,59 @@
+#
+# Makefile for ubi-utils
+#
+
+KERNELHDR := ../../include
+
+CFLAGS ?= -O2 -g -Werror
+CPPFLAGS += -I./inc -I./src -I$(KERNELHDR) \
+	-std=gnu99 -DPACKAGE_VERSION=\"1.0\"
+
+PERLPROGS = mkpfi ubicrc32.pl
+
+TARGETS = pfiflash pddcustomize ubimirror bin2nand nand2bin ubigen \
+	mkbootenv unubi pfi2bin
+
+vpath   %.c ./src
+
+include ../../common.mk
+
+$(BUILDDIR)/pddcustomize: $(addprefix $(BUILDDIR)/,\
+	pddcustomize.o error.o libubimirror.o bootenv.o hashmap.o \
+	libubi.o crc32.o)
+
+$(BUILDDIR)/pfiflash: $(addprefix $(BUILDDIR)/,\
+	pfiflash.o libpfiflash.o list.o reader.o error.o libubimirror.o \
+	bootenv.o hashmap.o pfi.o libubi.o crc32.o)
+
+$(BUILDDIR)/ubimirror: $(addprefix $(BUILDDIR)/,\
+	ubimirror.o error.o libubimirror.o bootenv.o hashmap.o \
+	libubi.o crc32.o)
+
+$(BUILDDIR)/nand2bin: $(addprefix $(BUILDDIR)/,\
+	nand2bin.o nandecc.o nandcorr.o)
+
+$(BUILDDIR)/bin2nand: $(addprefix $(BUILDDIR)/,\
+	bin2nand.o error.o nandecc.o)
+
+$(BUILDDIR)/ubigen: $(addprefix $(BUILDDIR)/,\
+	ubigen.o libubigen.o crc32.o)
+
+$(BUILDDIR)/mkbootenv: $(addprefix $(BUILDDIR)/,\
+	mkbootenv.o bootenv.o hashmap.o error.o crc32.o)
+
+$(BUILDDIR)/unubi: $(addprefix $(BUILDDIR)/,\
+	unubi.o crc32.o unubi_analyze.o eb_chain.o)
+
+$(BUILDDIR)/pfi2bin: $(addprefix $(BUILDDIR)/,\
+	pfi2bin.o peb.o error.o list.o crc32.o libubigen.o bootenv.o \
+	hashmap.o reader.o pfi.o)
+
+install::
+	mkdir -p ${DESTDIR}/${SBINDIR}
+	install -m 0755 ${TARGETS} ${DESTDIR}/${SBINDIR}/
+	(cd perl && install ${PERLPROGS} ${DESTDIR}/${SBINDIR}/)
+
+uninstall:
+	for file in ${TARGETS} ${PERLPROGS}; do \
+		$(RM) ${DESTDIR}/${SBINDIR}/$$file; \
+	done
diff --git a/ubi-utils/README b/ubi-utils/old-utils/README
index d976a76..d976a76 100644
--- a/ubi-utils/README
+++ b/ubi-utils/old-utils/README
diff --git a/ubi-utils/UBI.TXT b/ubi-utils/old-utils/UBI.TXT
index 9a1c3c7..9a1c3c7 100644
--- a/ubi-utils/UBI.TXT
+++ b/ubi-utils/old-utils/UBI.TXT
diff --git a/ubi-utils/doc/unubi.roff b/ubi-utils/old-utils/doc/unubi.roff
index 6cebc46..6cebc46 100644
--- a/ubi-utils/doc/unubi.roff
+++ b/ubi-utils/old-utils/doc/unubi.roff
diff --git a/ubi-utils/inc/libubi.h b/ubi-utils/old-utils/inc/libubi.h
index 82824bd..82824bd 100644
--- a/ubi-utils/inc/libubi.h
+++ b/ubi-utils/old-utils/inc/libubi.h
diff --git a/ubi-utils/lib/Makefile.am b/ubi-utils/old-utils/lib/Makefile.am
index 1b0dc01..1b0dc01 100644
--- a/ubi-utils/lib/Makefile.am
+++ b/ubi-utils/old-utils/lib/Makefile.am
diff --git a/ubi-utils/perl/f128_nand_sample.cfg b/ubi-utils/old-utils/perl/f128_nand_sample.cfg
index e468d9d..e468d9d 100644
--- a/ubi-utils/perl/f128_nand_sample.cfg
+++ b/ubi-utils/old-utils/perl/f128_nand_sample.cfg
diff --git a/ubi-utils/perl/f64_nor_sample.cfg b/ubi-utils/old-utils/perl/f64_nor_sample.cfg
index fd44e27..fd44e27 100644
--- a/ubi-utils/perl/f64_nor_sample.cfg
+++ b/ubi-utils/old-utils/perl/f64_nor_sample.cfg
diff --git a/ubi-utils/perl/mkpfi b/ubi-utils/old-utils/perl/mkpfi
index 2cce587..2cce587 100755
--- a/ubi-utils/perl/mkpfi
+++ b/ubi-utils/old-utils/perl/mkpfi
diff --git a/ubi-utils/perl/ubicrc32.pl b/ubi-utils/old-utils/perl/ubicrc32.pl
index add5f9d..add5f9d 100755
--- a/ubi-utils/perl/ubicrc32.pl
+++ b/ubi-utils/old-utils/perl/ubicrc32.pl
diff --git a/ubi-utils/scripts/Makefile b/ubi-utils/old-utils/scripts/Makefile
index ebd9bc6..ebd9bc6 100644
--- a/ubi-utils/scripts/Makefile
+++ b/ubi-utils/old-utils/scripts/Makefile
diff --git a/ubi-utils/scripts/README b/ubi-utils/old-utils/scripts/README
index 899b4a1..899b4a1 100644
--- a/ubi-utils/scripts/README
+++ b/ubi-utils/old-utils/scripts/README
diff --git a/ubi-utils/scripts/TODO b/ubi-utils/old-utils/scripts/TODO
index f093e77..f093e77 100644
--- a/ubi-utils/scripts/TODO
+++ b/ubi-utils/old-utils/scripts/TODO
diff --git a/ubi-utils/scripts/bin2nand2bin_test.sh b/ubi-utils/old-utils/scripts/bin2nand2bin_test.sh
index a17c91b..a17c91b 100644
--- a/ubi-utils/scripts/bin2nand2bin_test.sh
+++ b/ubi-utils/old-utils/scripts/bin2nand2bin_test.sh
diff --git a/ubi-utils/scripts/inject_biterror.pl b/ubi-utils/old-utils/scripts/inject_biterror.pl
index b4a862a..b4a862a 100644
--- a/ubi-utils/scripts/inject_biterror.pl
+++ b/ubi-utils/old-utils/scripts/inject_biterror.pl
diff --git a/ubi-utils/scripts/jffs2_test.sh b/ubi-utils/old-utils/scripts/jffs2_test.sh
index 0cc9f0c..0cc9f0c 100755
--- a/ubi-utils/scripts/jffs2_test.sh
+++ b/ubi-utils/old-utils/scripts/jffs2_test.sh
diff --git a/ubi-utils/scripts/mkdevs.pl b/ubi-utils/old-utils/scripts/mkdevs.pl
index f0fd464..f0fd464 100755
--- a/ubi-utils/scripts/mkdevs.pl
+++ b/ubi-utils/old-utils/scripts/mkdevs.pl
diff --git a/ubi-utils/scripts/pdd.txt b/ubi-utils/old-utils/scripts/pdd.txt
index a3ad915..a3ad915 100644
--- a/ubi-utils/scripts/pdd.txt
+++ b/ubi-utils/old-utils/scripts/pdd.txt
diff --git a/ubi-utils/scripts/run_all.sh b/ubi-utils/old-utils/scripts/run_all.sh
index 040bcbd..040bcbd 100755
--- a/ubi-utils/scripts/run_all.sh
+++ b/ubi-utils/old-utils/scripts/run_all.sh
diff --git a/ubi-utils/scripts/test.cfg b/ubi-utils/old-utils/scripts/test.cfg
index 0b5ec48..0b5ec48 100644
--- a/ubi-utils/scripts/test.cfg
+++ b/ubi-utils/old-utils/scripts/test.cfg
diff --git a/ubi-utils/scripts/ubi_jffs2_test.sh b/ubi-utils/old-utils/scripts/ubi_jffs2_test.sh
index 883903d..883903d 100755
--- a/ubi-utils/scripts/ubi_jffs2_test.sh
+++ b/ubi-utils/old-utils/scripts/ubi_jffs2_test.sh
diff --git a/ubi-utils/scripts/ubi_test.sh b/ubi-utils/old-utils/scripts/ubi_test.sh
index 73e4b19..73e4b19 100755
--- a/ubi-utils/scripts/ubi_test.sh
+++ b/ubi-utils/old-utils/scripts/ubi_test.sh
diff --git a/ubi-utils/scripts/ubi_tools_test.sh b/ubi-utils/old-utils/scripts/ubi_tools_test.sh
index 7f121f1..7f121f1 100755
--- a/ubi-utils/scripts/ubi_tools_test.sh
+++ b/ubi-utils/old-utils/scripts/ubi_tools_test.sh
diff --git a/ubi-utils/scripts/unubi_test.sh b/ubi-utils/old-utils/scripts/unubi_test.sh
index 40dc2e2..40dc2e2 100644
--- a/ubi-utils/scripts/unubi_test.sh
+++ b/ubi-utils/old-utils/scripts/unubi_test.sh
diff --git a/ubi-utils/src/bin2nand.c b/ubi-utils/old-utils/src/bin2nand.c
index c7c7ccc..c7c7ccc 100644
--- a/ubi-utils/src/bin2nand.c
+++ b/ubi-utils/old-utils/src/bin2nand.c
diff --git a/ubi-utils/src/bootenv.c b/ubi-utils/old-utils/src/bootenv.c
index 78198fe..78198fe 100644
--- a/ubi-utils/src/bootenv.c
+++ b/ubi-utils/old-utils/src/bootenv.c
diff --git a/ubi-utils/src/bootenv.h b/ubi-utils/old-utils/src/bootenv.h
index 8fecdbf..8fecdbf 100644
--- a/ubi-utils/src/bootenv.h
+++ b/ubi-utils/old-utils/src/bootenv.h
diff --git a/ubi-utils/src/config.h b/ubi-utils/old-utils/src/config.h
index 55e60f3..55e60f3 100644
--- a/ubi-utils/src/config.h
+++ b/ubi-utils/old-utils/src/config.h
diff --git a/ubi-utils/old-utils/src/crc32.c b/ubi-utils/old-utils/src/crc32.c
new file mode 100644
index 0000000..666e217
--- /dev/null
+++ b/ubi-utils/old-utils/src/crc32.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2006
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Author: Thomas Gleixner
+ */
+
+/*
+ * CRC32 functions
+ *
+ * Can be compiled as seperate object, but is included into the ipl source
+ * so gcc can inline the functions. We optimize for size so the omission of
+ * the function frame is helpful.
+ *
+ */
+
+#include <stdint.h>
+#include <crc32.h>
+
+/* CRC polynomial */
+#define CRC_POLY	0xEDB88320
+
+/**
+ * init_crc32_table - Initialize crc table
+ *
+ * @table:	pointer to the CRC table which must be initialized
+ *
+ * Create CRC32 table for given polynomial. The table is created with
+ * the lowest order term in the highest order bit. So the x^32 term
+ * has to implied in the crc calculation function.
+ */
+void init_crc32_table(uint32_t *table)
+{
+	uint32_t crc;
+	int i, j;
+
+	for (i = 0; i < 256; i++) {
+		crc = i;
+		for (j = 8; j > 0; j--) {
+			if (crc & 1)
+				crc = (crc >> 1) ^ CRC_POLY;
+			else
+				crc >>= 1;
+		}
+		table[i] = crc;
+	}
+}
+
+/**
+ * clc_crc32 - Calculate CRC32 over a buffer
+ *
+ * @table:	pointer to the CRC table
+ * @crc:	initial crc value
+ * @buf:	pointer to the buffer
+ * @len:	number of bytes to calc
+ *
+ * Returns the updated crc value.
+ *
+ * The algorithm resembles a hardware shift register, but calculates 8
+ * bit at once.
+ */
+uint32_t clc_crc32(uint32_t *table, uint32_t crc, void *buf,
+		   int len)
+{
+	const unsigned char *p = buf;
+
+	while(--len >= 0)
+		crc = table[(crc ^ *p++) & 0xff] ^ (crc >> 8);
+	return crc;
+}
diff --git a/ubi-utils/old-utils/src/crc32.h b/ubi-utils/old-utils/src/crc32.h
new file mode 100644
index 0000000..31362b0
--- /dev/null
+++ b/ubi-utils/old-utils/src/crc32.h
@@ -0,0 +1,36 @@
+#ifndef __CRC32_H__
+#define __CRC32_H__
+/*
+ * Copyright (c) International Business Machines Corp., 2006
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * Author: Thomas Gleixner
+ *
+ * CRC32 functions
+ *
+ * Can be compiled as seperate object, but is included into the ipl source
+ * so gcc can inline the functions. We optimize for size so the omission of
+ * the function frame is helpful.
+ *
+ */
+#include <stdint.h>
+
+void init_crc32_table(uint32_t *table);
+uint32_t clc_crc32(uint32_t *table, uint32_t crc, void *buf, int len);
+
+#endif /* __CRC32_H__ */
diff --git a/ubi-utils/src/eb_chain.c b/ubi-utils/old-utils/src/eb_chain.c
index da5c2e3..da5c2e3 100644
--- a/ubi-utils/src/eb_chain.c
+++ b/ubi-utils/old-utils/src/eb_chain.c
diff --git a/ubi-utils/src/error.c b/ubi-utils/old-utils/src/error.c
index 4aaedad..4aaedad 100644
--- a/ubi-utils/src/error.c
+++ b/ubi-utils/old-utils/src/error.c
diff --git a/ubi-utils/src/error.h b/ubi-utils/old-utils/src/error.h
index 05d8078..05d8078 100644
--- a/ubi-utils/src/error.h
+++ b/ubi-utils/old-utils/src/error.h
diff --git a/ubi-utils/src/example_ubi.h b/ubi-utils/old-utils/src/example_ubi.h
index 23c7b54..23c7b54 100644
--- a/ubi-utils/src/example_ubi.h
+++ b/ubi-utils/old-utils/src/example_ubi.h
diff --git a/ubi-utils/src/hashmap.c b/ubi-utils/old-utils/src/hashmap.c
index 3511d56..3511d56 100644
--- a/ubi-utils/src/hashmap.c
+++ b/ubi-utils/old-utils/src/hashmap.c
diff --git a/ubi-utils/src/hashmap.h b/ubi-utils/old-utils/src/hashmap.h
index 1b13e95..1b13e95 100644
--- a/ubi-utils/src/hashmap.h
+++ b/ubi-utils/old-utils/src/hashmap.h
diff --git a/ubi-utils/src/libpfiflash.c b/ubi-utils/old-utils/src/libpfiflash.c
index b0d454a..b0d454a 100644
--- a/ubi-utils/src/libpfiflash.c
+++ b/ubi-utils/old-utils/src/libpfiflash.c
diff --git a/ubi-utils/old-utils/src/libubi.c b/ubi-utils/old-utils/src/libubi.c
new file mode 100644
index 0000000..a536b47
--- /dev/null
+++ b/ubi-utils/old-utils/src/libubi.c
@@ -0,0 +1,915 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2006
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Author: Artem B. Bityutskiy
+ *
+ * UBI (Unsorted Block Images) library.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <limits.h>
+#include "libubi.h"
+#include "libubi_int.h"
+
+libubi_t libubi_open(void)
+{
+	int fd, version;
+	struct libubi *lib;
+
+	lib = calloc(1, sizeof(struct libubi));
+	if (!lib)
+		return NULL;
+
+	/* TODO: this must be discovered instead */
+	lib->sysfs = strdup("/sys");
+	if (!lib->sysfs)
+		goto error;
+
+	lib->sysfs_ubi = mkpath(lib->sysfs, SYSFS_UBI);
+	if (!lib->sysfs_ubi)
+		goto error;
+
+	/* Make sure UBI is present */
+	fd = open(lib->sysfs_ubi, O_RDONLY);
+	if (fd == -1)
+		goto error;
+	close(fd);
+
+	lib->ubi_dev = mkpath(lib->sysfs_ubi, UBI_DEV_NAME_PATT);
+	if (!lib->ubi_dev)
+		goto error;
+
+	lib->ubi_version = mkpath(lib->sysfs_ubi, UBI_VER);
+	if (!lib->ubi_version)
+		goto error;
+
+	lib->dev_dev = mkpath(lib->ubi_dev, DEV_DEV);
+	if (!lib->dev_dev)
+		goto error;
+
+	lib->dev_avail_ebs = mkpath(lib->ubi_dev, DEV_AVAIL_EBS);
+	if (!lib->dev_avail_ebs)
+		goto error;
+
+	lib->dev_total_ebs = mkpath(lib->ubi_dev, DEV_TOTAL_EBS);
+	if (!lib->dev_total_ebs)
+		goto error;
+
+	lib->dev_bad_count = mkpath(lib->ubi_dev, DEV_BAD_COUNT);
+	if (!lib->dev_bad_count)
+		goto error;
+
+	lib->dev_eb_size = mkpath(lib->ubi_dev, DEV_EB_SIZE);
+	if (!lib->dev_eb_size)
+		goto error;
+
+	lib->dev_max_ec = mkpath(lib->ubi_dev, DEV_MAX_EC);
+	if (!lib->dev_max_ec)
+		goto error;
+
+	lib->dev_bad_rsvd = mkpath(lib->ubi_dev, DEV_MAX_RSVD);
+	if (!lib->dev_bad_rsvd)
+		goto error;
+
+	lib->dev_max_vols = mkpath(lib->ubi_dev, DEV_MAX_VOLS);
+	if (!lib->dev_max_vols)
+		goto error;
+
+	lib->dev_min_io_size = mkpath(lib->ubi_dev, DEV_MIN_IO_SIZE);
+	if (!lib->dev_min_io_size)
+		goto error;
+
+	lib->ubi_vol = mkpath(lib->sysfs_ubi, UBI_VOL_NAME_PATT);
+	if (!lib->ubi_vol)
+		goto error;
+
+	lib->vol_type = mkpath(lib->ubi_vol, VOL_TYPE);
+	if (!lib->vol_type)
+		goto error;
+
+	lib->vol_dev = mkpath(lib->ubi_vol, VOL_DEV);
+	if (!lib->vol_dev)
+		goto error;
+
+	lib->vol_alignment = mkpath(lib->ubi_vol, VOL_ALIGNMENT);
+	if (!lib->vol_alignment)
+		goto error;
+
+	lib->vol_data_bytes = mkpath(lib->ubi_vol, VOL_DATA_BYTES);
+	if (!lib->vol_data_bytes)
+		goto error;
+
+	lib->vol_rsvd_ebs = mkpath(lib->ubi_vol, VOL_RSVD_EBS);
+	if (!lib->vol_rsvd_ebs)
+		goto error;
+
+	lib->vol_eb_size = mkpath(lib->ubi_vol, VOL_EB_SIZE);
+	if (!lib->vol_eb_size)
+		goto error;
+
+	lib->vol_corrupted = mkpath(lib->ubi_vol, VOL_CORRUPTED);
+	if (!lib->vol_corrupted)
+		goto error;
+
+	lib->vol_name = mkpath(lib->ubi_vol, VOL_NAME);
+	if (!lib->vol_name)
+		goto error;
+
+	if (read_int(lib->ubi_version, &version))
+		goto error;
+	if (version != LIBUBI_UBI_VERSION) {
+		fprintf(stderr, "LIBUBI: this library was made for UBI version "
+				"%d, but UBI version %d is detected\n",
+			LIBUBI_UBI_VERSION, version);
+		goto error;
+	}
+
+	return lib;
+
+error:
+	free(lib->vol_corrupted);
+	free(lib->vol_eb_size);
+	free(lib->vol_rsvd_ebs);
+	free(lib->vol_data_bytes);
+	free(lib->vol_alignment);
+	free(lib->vol_dev);
+	free(lib->vol_type);
+	free(lib->ubi_vol);
+	free(lib->dev_min_io_size);
+	free(lib->dev_max_vols);
+	free(lib->dev_bad_rsvd);
+	free(lib->dev_max_ec);
+	free(lib->dev_eb_size);
+	free(lib->dev_bad_count);
+	free(lib->dev_total_ebs);
+	free(lib->dev_avail_ebs);
+	free(lib->dev_dev);
+	free(lib->ubi_version);
+	free(lib->ubi_dev);
+	free(lib->sysfs_ubi);
+	free(lib->sysfs);
+	free(lib);
+	return NULL;
+}
+
+void libubi_close(libubi_t desc)
+{
+	struct libubi *lib = (struct libubi *)desc;
+
+	free(lib->vol_name);
+	free(lib->vol_corrupted);
+	free(lib->vol_eb_size);
+	free(lib->vol_rsvd_ebs);
+	free(lib->vol_data_bytes);
+	free(lib->vol_alignment);
+	free(lib->vol_dev);
+	free(lib->vol_type);
+	free(lib->ubi_vol);
+	free(lib->dev_min_io_size);
+	free(lib->dev_max_vols);
+	free(lib->dev_bad_rsvd);
+	free(lib->dev_max_ec);
+	free(lib->dev_eb_size);
+	free(lib->dev_bad_count);
+	free(lib->dev_total_ebs);
+	free(lib->dev_avail_ebs);
+	free(lib->dev_dev);
+	free(lib->ubi_version);
+	free(lib->ubi_dev);
+	free(lib->sysfs_ubi);
+	free(lib->sysfs);
+	free(lib);
+}
+
+int ubi_get_info(libubi_t desc, struct ubi_info *info)
+{
+	DIR *sysfs_ubi;
+	struct dirent *dirent;
+	struct libubi *lib = (struct libubi *)desc;
+
+	memset(info, '\0', sizeof(struct ubi_info));
+
+	/*
+	 * We have to scan the UBI sysfs directory to identify how many UBI
+	 * devices are present.
+	 */
+	sysfs_ubi = opendir(lib->sysfs_ubi);
+	if (!sysfs_ubi)
+		return -1;
+
+	info->lowest_dev_num = INT_MAX;
+	while ((dirent = readdir(sysfs_ubi))) {
+		char *name = &dirent->d_name[0];
+		int dev_num, ret;
+
+		ret = sscanf(name, UBI_DEV_NAME_PATT, &dev_num);
+		if (ret == 1) {
+			info->dev_count += 1;
+			if (dev_num > info->highest_dev_num)
+				info->highest_dev_num = dev_num;
+			if (dev_num < info->lowest_dev_num)
+				info->lowest_dev_num = dev_num;
+		}
+	}
+
+	if (info->lowest_dev_num == INT_MAX)
+		info->lowest_dev_num = 0;
+
+	if (read_int(lib->ubi_version, &info->version))
+		goto close;
+
+	return closedir(sysfs_ubi);
+
+close:
+	closedir(sysfs_ubi);
+	return -1;
+}
+
+int ubi_mkvol(libubi_t desc, const char *node, struct ubi_mkvol_request *req)
+{
+	int fd, ret;
+	struct ubi_mkvol_req r;
+	size_t n;
+
+	desc = desc;
+	r.vol_id = req->vol_id;
+	r.alignment = req->alignment;
+	r.bytes = req->bytes;
+	r.vol_type = req->vol_type;
+
+	n = strlen(req->name);
+	if (n > UBI_MAX_VOLUME_NAME)
+		return -1;
+
+	strncpy(r.name, req->name, UBI_MAX_VOLUME_NAME + 1);
+	r.name_len = n;
+
+	fd = open(node, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	ret = ioctl(fd, UBI_IOCMKVOL, &r);
+	if (!ret)
+		req->vol_id = r.vol_id;
+
+	close(fd);
+	return ret;
+}
+
+int ubi_rmvol(libubi_t desc, const char *node, int vol_id)
+{
+	int fd, ret;
+
+	desc = desc;
+	fd = open(node, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	ret = ioctl(fd, UBI_IOCRMVOL, &vol_id);
+	close(fd);
+	return ret;
+}
+
+int ubi_rsvol(libubi_t desc, const char *node, int vol_id, long long bytes)
+{
+	int fd, ret;
+	struct ubi_rsvol_req req;
+
+	desc = desc;
+	fd = open(node, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	req.bytes = bytes;
+	req.vol_id = vol_id;
+
+	ret = ioctl(fd, UBI_IOCRSVOL, &req);
+	close(fd);
+	return ret;
+}
+
+int ubi_update_start(libubi_t desc, int fd, long long bytes)
+{
+	desc = desc;
+	if (ioctl(fd, UBI_IOCVOLUP, &bytes))
+		return -1;
+	return 0;
+}
+
+int ubi_get_dev_info(libubi_t desc, const char *node, struct ubi_dev_info *info)
+{
+	int dev_num;
+	struct libubi *lib = (struct libubi *)desc;
+
+	dev_num = find_dev_num(lib, node);
+	if (dev_num == -1)
+		return -1;
+
+	return ubi_get_dev_info1(desc, dev_num, info);
+}
+
+int ubi_get_dev_info1(libubi_t desc, int dev_num, struct ubi_dev_info *info)
+{
+	DIR *sysfs_ubi;
+	struct dirent *dirent;
+	struct libubi *lib = (struct libubi *)desc;
+
+	memset(info, '\0', sizeof(struct ubi_dev_info));
+	info->dev_num = dev_num;
+
+	sysfs_ubi = opendir(lib->sysfs_ubi);
+	if (!sysfs_ubi)
+		return -1;
+
+	info->lowest_vol_num = INT_MAX;
+	while ((dirent = readdir(sysfs_ubi))) {
+		char *name = &dirent->d_name[0];
+		int vol_id, ret, devno;
+
+		ret = sscanf(name, UBI_VOL_NAME_PATT, &devno, &vol_id);
+		if (ret == 2 && devno == dev_num) {
+			info->vol_count += 1;
+			if (vol_id > info->highest_vol_num)
+				info->highest_vol_num = vol_id;
+			if (vol_id < info->lowest_vol_num)
+				info->lowest_vol_num = vol_id;
+		}
+	}
+
+	closedir(sysfs_ubi);
+
+	if (info->lowest_vol_num == INT_MAX)
+		info->lowest_vol_num = 0;
+
+	if (dev_read_int(lib->dev_avail_ebs, dev_num, &info->avail_ebs))
+		return -1;
+	if (dev_read_int(lib->dev_total_ebs, dev_num, &info->total_ebs))
+		return -1;
+	if (dev_read_int(lib->dev_bad_count, dev_num, &info->bad_count))
+		return -1;
+	if (dev_read_int(lib->dev_eb_size, dev_num, &info->eb_size))
+		return -1;
+	if (dev_read_int(lib->dev_bad_rsvd, dev_num, &info->bad_rsvd))
+		return -1;
+	if (dev_read_ll(lib->dev_max_ec, dev_num, &info->max_ec))
+		return -1;
+	if (dev_read_int(lib->dev_max_vols, dev_num, &info->max_vol_count))
+		return -1;
+	if (dev_read_int(lib->dev_min_io_size, dev_num, &info->min_io_size))
+		return -1;
+
+	info->avail_bytes = info->avail_ebs * info->eb_size;
+	info->total_bytes = info->total_ebs * info->eb_size;
+
+	return 0;
+}
+
+int ubi_get_vol_info(libubi_t desc, const char *node, struct ubi_vol_info *info)
+{
+	int vol_id, dev_num;
+	struct libubi *lib = (struct libubi *)desc;
+
+	dev_num = find_dev_num_vol(lib, node);
+	if (dev_num == -1)
+		return -1;
+
+	vol_id = find_vol_num(lib, dev_num, node);
+	if (vol_id == -1)
+		return -1;
+
+	return ubi_get_vol_info1(desc, dev_num, vol_id, info);
+}
+
+int ubi_get_vol_info1(libubi_t desc, int dev_num, int vol_id,
+		      struct ubi_vol_info *info)
+{
+	int ret;
+	struct libubi *lib = (struct libubi *)desc;
+	char buf[50];
+
+	memset(info, '\0', sizeof(struct ubi_vol_info));
+	info->dev_num = dev_num;
+	info->vol_id = vol_id;
+
+	ret = vol_read_data(lib->vol_type, dev_num, vol_id, &buf[0], 50);
+	if (ret < 0)
+		return -1;
+
+	if (strncmp(&buf[0], "static\n", ret) == 0)
+		info->type = UBI_STATIC_VOLUME;
+	else if (strncmp(&buf[0], "dynamic\n", ret) == 0)
+		info->type = UBI_DYNAMIC_VOLUME;
+	else {
+		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
+		errno = EINVAL;
+		return -1;
+	}
+
+	ret = vol_read_int(lib->vol_alignment, dev_num, vol_id,
+			   &info->alignment);
+	if (ret)
+		return -1;
+	ret = vol_read_ll(lib->vol_data_bytes, dev_num, vol_id,
+			  &info->data_bytes);
+	if (ret)
+		return -1;
+	ret = vol_read_int(lib->vol_rsvd_ebs, dev_num, vol_id, &info->rsvd_ebs);
+	if (ret)
+		return -1;
+	ret = vol_read_int(lib->vol_eb_size, dev_num, vol_id, &info->eb_size);
+	if (ret)
+		return -1;
+	ret = vol_read_int(lib->vol_corrupted, dev_num, vol_id,
+			   &info->corrupted);
+	if (ret)
+		return -1;
+	info->rsvd_bytes = info->eb_size * info->rsvd_ebs;
+
+	ret = vol_read_data(lib->vol_name, dev_num, vol_id, &info->name,
+			    UBI_VOL_NAME_MAX + 2);
+	if (ret < 0)
+		return -1;
+
+	info->name[ret - 1] = '\0';
+	return 0;
+}
+
+/**
+ * read_int - read an 'int' value from a file.
+ *
+ * @file   the file to read from
+ * @value  the result is stored here
+ *
+ * This function returns %0 in case of success and %-1 in case of failure.
+ */
+static int read_int(const char *file, int *value)
+{
+	int fd, rd;
+	char buf[50];
+
+	fd = open(file, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rd = read(fd, &buf[0], 50);
+	if (rd == -1)
+		goto error;
+
+	if (sscanf(&buf[0], "%d\n", value) != 1) {
+		/* This must be a UBI bug */
+		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
+		errno = EINVAL;
+		goto error;
+	}
+
+	close(fd);
+	return 0;
+
+error:
+	close(fd);
+	return -1;
+}
+
+/**
+ * dev_read_int - read an 'int' value from an UBI device's sysfs file.
+ *
+ * @patt     the file pattern to read from
+ * @dev_num  UBI device number
+ * @value    the result is stored here
+ *
+ * This function returns %0 in case of success and %-1 in case of failure.
+ */
+static int dev_read_int(const char *patt, int dev_num, int *value)
+{
+	int fd, rd;
+	char buf[50];
+	char file[strlen(patt) + 50];
+
+	sprintf(&file[0], patt, dev_num);
+	fd = open(&file[0], O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rd = read(fd, &buf[0], 50);
+	if (rd == -1)
+		goto error;
+
+	if (sscanf(&buf[0], "%d\n", value) != 1) {
+		/* This must be a UBI bug */
+		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
+		errno = EINVAL;
+		goto error;
+	}
+
+	close(fd);
+	return 0;
+
+error:
+	close(fd);
+	return -1;
+}
+
+/**
+ * dev_read_ll - read a 'long long' value from an UBI device's sysfs file.
+ *
+ * @patt     the file pattern to read from
+ * @dev_num  UBI device number
+ * @value    the result is stored here
+ *
+ * This function returns %0 in case of success and %-1 in case of failure.
+ */
+static int dev_read_ll(const char *patt, int dev_num, long long *value)
+{
+	int fd, rd;
+	char buf[50];
+	char file[strlen(patt) + 50];
+
+	sprintf(&file[0], patt, dev_num);
+	fd = open(&file[0], O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rd = read(fd, &buf[0], 50);
+	if (rd == -1)
+		goto error;
+
+	if (sscanf(&buf[0], "%lld\n", value) != 1) {
+		/* This must be a UBI bug */
+		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
+		errno = EINVAL;
+		goto error;
+	}
+
+	close(fd);
+	return 0;
+
+error:
+	close(fd);
+	return -1;
+}
+
+/**
+ * dev_read_data - read data from an UBI device's sysfs file.
+ *
+ * @patt     the file pattern to read from
+ * @dev_num  UBI device number
+ * @buf      buffer to read data to
+ * @buf_len  buffer length
+ *
+ * This function returns number of read bytes in case of success and %-1 in
+ * case of failure.
+ */
+static int dev_read_data(const char *patt, int dev_num, void *buf, int buf_len)
+{
+	int fd, rd;
+	char file[strlen(patt) + 50];
+
+	sprintf(&file[0], patt, dev_num);
+	fd = open(&file[0], O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rd = read(fd, buf, buf_len);
+	if (rd == -1) {
+		close(fd);
+		return -1;
+	}
+
+	close(fd);
+	return rd;
+}
+
+/**
+ * vol_read_int - read an 'int' value from an UBI volume's sysfs file.
+ *
+ * @patt     the file pattern to read from
+ * @dev_num  UBI device number
+ * @vol_id   volume identifier
+ * @value    the result is stored here
+ *
+ * This function returns %0 in case of success and %-1 in case of failure.
+ */
+static int vol_read_int(const char *patt, int dev_num, int vol_id, int *value)
+{
+	int fd, rd;
+	char buf[50];
+	char file[strlen(patt) + 100];
+
+	sprintf(&file[0], patt, dev_num, vol_id);
+	fd = open(&file[0], O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rd = read(fd, &buf[0], 50);
+	if (rd == -1)
+		goto error;
+
+	if (sscanf(&buf[0], "%d\n", value) != 1) {
+		/* This must be a UBI bug */
+		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
+		errno = EINVAL;
+		goto error;
+	}
+
+	close(fd);
+	return 0;
+
+error:
+	close(fd);
+	return -1;
+}
+
+/**
+ * vol_read_ll - read a 'long long' value from an UBI volume's sysfs file.
+ *
+ * @patt     the file pattern to read from
+ * @dev_num  UBI device number
+ * @vol_id   volume identifier
+ * @value    the result is stored here
+ *
+ * This function returns %0 in case of success and %-1 in case of failure.
+ */
+static int vol_read_ll(const char *patt, int dev_num, int vol_id,
+		       long long *value)
+{
+	int fd, rd;
+	char buf[50];
+	char file[strlen(patt) + 100];
+
+	sprintf(&file[0], patt, dev_num, vol_id);
+	fd = open(&file[0], O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rd = read(fd, &buf[0], 50);
+	if (rd == -1)
+		goto error;
+
+	if (sscanf(&buf[0], "%lld\n", value) != 1) {
+		/* This must be a UBI bug */
+		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
+		errno = EINVAL;
+		goto error;
+	}
+
+	close(fd);
+	return 0;
+
+error:
+	close(fd);
+	return -1;
+}
+
+/**
+ * vol_read_data - read data from an UBI volume's sysfs file.
+ *
+ * @patt     the file pattern to read from
+ * @dev_num  UBI device number
+ * @vol_id   volume identifier
+ * @buf      buffer to read to
+ * @buf_len  buffer length
+ *
+ * This function returns number of read bytes in case of success and %-1 in
+ * case of failure.
+ */
+static int vol_read_data(const char *patt, int dev_num, int vol_id, void *buf,
+			 int buf_len)
+{
+	int fd, rd;
+	char file[strlen(patt) + 100];
+
+	sprintf(&file[0], patt, dev_num, vol_id);
+	fd = open(&file[0], O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rd = read(fd, buf, buf_len);
+	if (rd == -1) {
+		close(fd);
+		return -1;
+	}
+
+	close(fd);
+	return rd;
+}
+
+/**
+ * mkpath - compose full path from 2 given components.
+ *
+ * @path  first component
+ * @name  second component
+ *
+ * This function returns the resulting path in case of success and %NULL in
+ * case of failure.
+ */
+static char *mkpath(const char *path, const char *name)
+{
+	char *n;
+	int len1 = strlen(path);
+	int len2 = strlen(name);
+
+	n = malloc(len1 + len2 + 2);
+	if (!n)
+		return NULL;
+
+	memcpy(n, path, len1);
+	if (n[len1 - 1] != '/')
+		n[len1++] = '/';
+
+	memcpy(n + len1, name, len2 + 1);
+	return n;
+}
+
+/**
+ * find_dev_num - find UBI device number by its character device node.
+ *
+ * @lib   UBI library descriptor
+ * @node  UBI character device node name
+ *
+ * This function returns positive UBI device number in case of success and %-1
+ * in case of failure.
+ */
+static int find_dev_num(struct libubi *lib, const char *node)
+{
+	struct stat st;
+	struct ubi_info info;
+	int i, major, minor;
+
+	if (stat(node, &st))
+		return -1;
+
+	if (!S_ISCHR(st.st_mode)) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	major = major(st.st_rdev);
+	minor = minor(st.st_rdev);
+
+	if (minor != 0) {
+		errno = -EINVAL;
+		return -1;
+	}
+
+	if (ubi_get_info((libubi_t *)lib, &info))
+		return -1;
+
+	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
+		int major1, minor1, ret;
+		char buf[50];
+
+		ret = dev_read_data(lib->dev_dev, i, &buf[0], 50);
+		if (ret < 0)
+			return -1;
+
+		ret = sscanf(&buf[0], "%d:%d\n", &major1, &minor1);
+		if (ret != 2) {
+			fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
+			errno = EINVAL;
+			return -1;
+		}
+
+		if (minor1 == minor && major1 == major)
+			return i;
+	}
+
+	errno = ENOENT;
+	return -1;
+}
+
+/**
+ * find_dev_num_vol - find UBI device number by volume character device node.
+ *
+ * @lib   UBI library descriptor
+ * @node  UBI character device node name
+ *
+ * This function returns positive UBI device number in case of success and %-1
+ * in case of failure.
+ */
+static int find_dev_num_vol(struct libubi *lib, const char *node)
+{
+	struct stat st;
+	struct ubi_info info;
+	int i, major;
+
+	if (stat(node, &st))
+		return -1;
+
+	if (!S_ISCHR(st.st_mode)) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	major = major(st.st_rdev);
+
+	if (minor(st.st_rdev) == 0) {
+		errno = -EINVAL;
+		return -1;
+	}
+
+	if (ubi_get_info((libubi_t *)lib, &info))
+		return -1;
+
+	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
+		int major1, minor1, ret;
+		char buf[50];
+
+		ret = dev_read_data(lib->dev_dev, i, &buf[0], 50);
+		if (ret < 0)
+			return -1;
+
+		ret = sscanf(&buf[0], "%d:%d\n", &major1, &minor1);
+		if (ret != 2) {
+			fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
+			errno = EINVAL;
+			return -1;
+		}
+
+		if (major1 == major)
+			return i;
+	}
+
+	errno = ENOENT;
+	return -1;
+}
+
+/**
+ * find_vol_num - find UBI volume number by its character device node.
+ *
+ * @lib      UBI library descriptor
+ * @dev_num  UBI device number
+ * @node     UBI volume character device node name
+ *
+ * This function returns positive UBI volume number in case of success and %-1
+ * in case of failure.
+ */
+static int find_vol_num(struct libubi *lib, int dev_num, const char *node)
+{
+	struct stat st;
+	struct ubi_dev_info info;
+	int i, major, minor;
+
+	if (stat(node, &st))
+		return -1;
+
+	if (!S_ISCHR(st.st_mode)) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	major = major(st.st_rdev);
+	minor = minor(st.st_rdev);
+
+	if (minor == 0) {
+		errno = -EINVAL;
+		return -1;
+	}
+
+	if (ubi_get_dev_info1((libubi_t *)lib, dev_num, &info))
+		return -1;
+
+	for (i = info.lowest_vol_num; i <= info.highest_vol_num; i++) {
+		int major1, minor1, ret;
+		char buf[50];
+
+		ret = vol_read_data(lib->vol_dev,  dev_num, i, &buf[0], 50);
+		if (ret < 0)
+			return -1;
+
+		ret = sscanf(&buf[0], "%d:%d\n", &major1, &minor1);
+		if (ret != 2) {
+			fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
+			errno = EINVAL;
+			return -1;
+		}
+
+		if (minor1 == minor && major1 == major)
+			return i;
+	}
+
+	errno = ENOENT;
+	return -1;
+}
diff --git a/ubi-utils/new-utils/src/libubi_int.h b/ubi-utils/old-utils/src/libubi_int.h
index 2e664b8..e68b791 100644
--- a/ubi-utils/new-utils/src/libubi_int.h
+++ b/ubi-utils/old-utils/src/libubi_int.h
@@ -15,7 +15,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
- * Author: Artem Bityutskiy
+ * Author: Artem B. Bityutskiy
  *
  * UBI (Unsorted Block Images) library.
  */
@@ -23,31 +23,20 @@
 #ifndef __LIBUBI_INT_H__
 #define __LIBUBI_INT_H__
 
-#include <string.h>
-#include <errno.h>
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /*
+ * UBI heavily makes use of the sysfs file system to interact with users-pace.
  * The below are pre-define UBI file and directory names.
- *
- * Note, older kernels put 'ubiX_Y' directories straight to '/sys/class/ubi/'.
- * New kernels puts 'ubiX_Y' directories to '/sys/class/ubi/ubiX/', which is
- * saner. And for compatibility reasons it also puts symlinks to 'ubiX_Y'
- * directories to '/sys/class/ubi/'. For now libubi assumes old layout.
  */
 
 #define SYSFS_UBI         "class/ubi"
-#define SYSFS_CTRL        "class/misc/ubi_ctrl/"
-
-#define CTRL_DEV          "dev"
-
-#define UBI_VER           "version"
 #define UBI_DEV_NAME_PATT "ubi%d"
-
+#define UBI_VER           "version"
 #define DEV_DEV           "dev"
+#define UBI_VOL_NAME_PATT "ubi%d_%d"
 #define DEV_AVAIL_EBS     "avail_eraseblocks"
 #define DEV_TOTAL_EBS     "total_eraseblocks"
 #define DEV_BAD_COUNT     "bad_peb_count"
@@ -56,9 +45,6 @@ extern "C" {
 #define DEV_MAX_RSVD      "reserved_for_bad"
 #define DEV_MAX_VOLS      "max_vol_count"
 #define DEV_MIN_IO_SIZE   "min_io_size"
-#define DEV_MTD_NUM       "mtd_num"
-
-#define UBI_VOL_NAME_PATT "ubi%d_%d"
 #define VOL_TYPE          "type"
 #define VOL_DEV           "dev"
 #define VOL_ALIGNMENT     "alignment"
@@ -70,37 +56,34 @@ extern "C" {
 
 /**
  * libubi - UBI library description data structure.
- * @sysfs: sysfs file system path
- * @sysfs_ctrl: UBI control device directory in sysfs
- * @ctrl_dev: UBI control device major/minor numbers sysfs file
- * @sysfs_ubi: UBI directory in sysfs
- * @ubi_dev: UBI device sysfs directory pattern
- * @ubi_version: UBI version file sysfs path
- * @dev_dev: UBI device major/minor numbers file pattern
- * @dev_avail_ebs: count of available eraseblocks sysfs path pattern
- * @dev_total_ebs: total eraseblocks count sysfs path pattern
- * @dev_bad_count: count of bad eraseblocks sysfs path pattern
- * @dev_eb_size: size of UBI device's eraseblocks sysfs path pattern
- * @dev_max_ec: maximum erase counter sysfs path pattern
- * @dev_bad_rsvd: count of physical eraseblock reserved for bad eraseblocks
- *                handling
- * @dev_max_vols: maximum volumes number count sysfs path pattern
- * @dev_min_io_size: minimum I/O unit size sysfs path pattern
- * @ubi_vol: UBI volume sysfs directory pattern
- * @vol_type: volume type sysfs path pattern
- * @vol_dev: volume major/minor numbers file pattern
- * @vol_alignment: volume alignment sysfs path pattern
- * @vol_data_bytes: volume data size sysfs path pattern
- * @vol_rsvd_ebs: volume reserved size sysfs path pattern
- * @vol_eb_size: volume eraseblock size sysfs path pattern
- * @vol_corrupted: volume corruption flag sysfs path pattern
- * @vol_name: volume name sysfs path pattern
+ *
+ * @sysfs            sysfs file system path
+ * @sysfs_ubi        UBI directory in sysfs
+ * @ubi_dev          UBI device sysfs directory pattern
+ * @ubi_version      UBI version file sysfs path
+ * @dev_dev          UBI device's major/minor numbers file pattern
+ * @dev_avail_ebs    count of available eraseblocks sysfs path pattern
+ * @dev_total_ebs    total eraseblocks count sysfs path pattern
+ * @dev_bad_count    count of bad eraseblocks sysfs path pattern
+ * @dev_eb_size      size of UBI device's eraseblocks sysfs path pattern
+ * @dev_max_ec       maximum erase counter sysfs path pattern
+ * @dev_bad_rsvd     count of physical eraseblock reserved for bad eraseblocks
+ *                   handling
+ * @dev_max_vols     maximum volumes number count sysfs path pattern
+ * @dev_min_io_size  minimum I/O unit size sysfs path pattern
+ * @ubi_vol          UBI volume sysfs directory pattern
+ * @vol_type         volume type sysfs path pattern
+ * @vol_dev          volume's major/minor numbers file pattern
+ * @vol_alignment    volume alignment sysfs path pattern
+ * @vol_data_bytes   volume data size sysfs path pattern
+ * @vol_rsvd_ebs     volume reserved size sysfs path pattern
+ * @vol_eb_size      volume eraseblock size sysfs path pattern
+ * @vol_corrupted    volume corruption flag sysfs path pattern
+ * @vol_name         volume name sysfs path pattern
  */
 struct libubi
 {
 	char *sysfs;
-	char *sysfs_ctrl;
-	char *ctrl_dev;
 	char *sysfs_ubi;
 	char *ubi_dev;
 	char *ubi_version;
@@ -113,7 +96,6 @@ struct libubi
 	char *dev_bad_rsvd;
 	char *dev_max_vols;
 	char *dev_min_io_size;
-	char *dev_mtd_num;
 	char *ubi_vol;
 	char *vol_type;
 	char *vol_dev;
@@ -126,6 +108,20 @@ struct libubi
 	char *vol_max_count;
 };
 
+static int read_int(const char *file, int *value);
+static int dev_read_int(const char *patt, int dev_num, int *value);
+static int dev_read_ll(const char *patt, int dev_num, long long *value);
+static int dev_read_data(const char *patt, int dev_num, void *buf, int buf_len);
+static int vol_read_int(const char *patt, int dev_num, int vol_id, int *value);
+static int vol_read_ll(const char *patt, int dev_num, int vol_id,
+		       long long *value);
+static int vol_read_data(const char *patt, int dev_num, int vol_id, void *buf,
+			 int buf_len);
+static char *mkpath(const char *path, const char *name);
+static int find_dev_num(struct libubi *lib, const char *node);
+static int find_dev_num_vol(struct libubi *lib, const char *node);
+static int find_vol_num(struct libubi *lib, int dev_num, const char *node);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/ubi-utils/old-utils/src/libubigen.c b/ubi-utils/old-utils/src/libubigen.c
new file mode 100644
index 0000000..1793009
--- /dev/null
+++ b/ubi-utils/old-utils/src/libubigen.c
@@ -0,0 +1,487 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2006
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Author: Oliver Lohmann
+ *
+ * Add UBI headers to binary data.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <mtd/ubi-media.h>
+#include <mtd_swab.h>
+
+#include "config.h"
+#include "ubigen.h"
+#include "crc32.h"
+
+#define UBI_NAME_SIZE		256
+#define DEFAULT_VID_OFFSET	((DEFAULT_PAGESIZE) - (UBI_VID_HDR_SIZE))
+#define MIN(a,b)		((a) < (b) ? (a) : (b))
+
+static uint32_t crc32_table[256];
+
+struct ubi_info {
+	struct ubi_vid_hdr* v;	/* Volume ID header */
+	struct ubi_ec_hdr* ec;	/* Erase count header */
+
+	FILE* fp_in;		/* Input Stream */
+	FILE* fp_out;		/* Output stream */
+
+	size_t eb_size;		/* Physical EB size in bytes */
+	size_t leb_size;	/* Size of a logical EB in a physical EB */
+	size_t leb_total;	/* Total input size in logical EB */
+	size_t alignment;	/* Block alignment */
+	size_t data_pad;	/* Size of padding in each physical EB */
+
+	size_t bytes_total;	/* Total input size in bytes */
+	size_t bytes_read;	/* Nymber of read bytes (total) */
+
+	uint32_t blks_written;	/* Number of written logical EB */
+
+	uint8_t* buf;		/* Allocated buffer */
+	uint8_t* ptr_ec_hdr;	/* Pointer to EC hdr in buf */
+	uint8_t* ptr_vid_hdr;	/* Pointer to VID hdr in buf */
+	uint8_t* ptr_data;	/* Pointer to data region in buf */
+};
+
+
+static uint32_t
+byte_to_blk(uint64_t byte, uint32_t eb_size)
+{
+	return (byte % eb_size) == 0
+		? (byte / eb_size)
+		: (byte / eb_size) + 1;
+}
+
+static int
+validate_ubi_info(ubi_info_t u)
+{
+	if ((u->v->vol_type != UBI_VID_DYNAMIC) &&
+	    (u->v->vol_type != UBI_VID_STATIC)) {
+		return EUBIGEN_INVALID_TYPE;
+	}
+
+	if (be32_to_cpu(u->ec->vid_hdr_offset) < UBI_VID_HDR_SIZE) {
+		return EUBIGEN_INVALID_HDR_OFFSET;
+	}
+
+	return 0;
+}
+
+static int
+skip_blks(ubi_info_t u, uint32_t blks)
+{
+	uint32_t i;
+	size_t read = 0, to_read = 0;
+
+	/* Step to a maximum of leb_total - 1 to keep the
+	   restrictions. */
+	for (i = 0; i < MIN(blks, u->leb_total-1); i++) {
+		/* Read in data */
+		to_read = MIN(u->leb_size,
+			      (u->bytes_total - u->bytes_read));
+		read = fread(u->ptr_data, 1, to_read, u->fp_in);
+		if (read != to_read) {
+			return -EIO;
+		}
+		u->bytes_read += read;
+		u->blks_written++;
+	}
+
+	return 0;
+}
+
+static void
+clear_buf(ubi_info_t u)
+{
+	memset(u->buf, 0xff, u->eb_size);
+}
+
+static void
+write_ec_hdr(ubi_info_t u)
+{
+	memcpy(u->ptr_ec_hdr, u->ec, UBI_EC_HDR_SIZE);
+}
+
+static int
+fill_data_buffer_from_file(ubi_info_t u, size_t* read)
+{
+	size_t to_read = 0;
+
+	if (u-> fp_in == NULL)
+		return -EIO;
+
+	to_read = MIN(u->leb_size, (u->bytes_total - u->bytes_read));
+	*read = fread(u->ptr_data, 1, to_read, u->fp_in);
+	if (*read != to_read) {
+		return -EIO;
+	}
+	return 0;
+}
+
+static void
+add_static_info(ubi_info_t u, size_t data_size, ubigen_action_t action)
+{
+	uint32_t crc = clc_crc32(crc32_table, UBI_CRC32_INIT,
+				 u->ptr_data, data_size);
+
+	u->v->data_size = cpu_to_be32(data_size);
+	u->v->data_crc = cpu_to_be32(crc);
+
+	if (action & BROKEN_DATA_CRC) {
+		u->v->data_crc =
+			cpu_to_be32(be32_to_cpu(u->v->data_crc) + 1);
+	}
+	if (action & BROKEN_DATA_SIZE) {
+		u->v->data_size =
+			cpu_to_be32(be32_to_cpu(u->v->data_size) + 1);
+	}
+}
+
+static void
+write_vid_hdr(ubi_info_t u, ubigen_action_t action)
+{
+	uint32_t crc = clc_crc32(crc32_table, UBI_CRC32_INIT,
+				 u->v, UBI_VID_HDR_SIZE_CRC);
+	/* Write VID header */
+	u->v->hdr_crc = cpu_to_be32(crc);
+	if (action & BROKEN_HDR_CRC) {
+		u->v->hdr_crc = cpu_to_be32(be32_to_cpu(u->v->hdr_crc) + 1);
+	}
+	memcpy(u->ptr_vid_hdr, u->v, UBI_VID_HDR_SIZE);
+}
+
+static int
+write_to_output_stream(ubi_info_t u)
+{
+	size_t written;
+
+	written = fwrite(u->buf, 1, u->eb_size, u->fp_out);
+	if (written != u->eb_size) {
+		return -EIO;
+	}
+	return 0;
+}
+
+int
+ubigen_write_leb(ubi_info_t u, ubigen_action_t action)
+{
+	int rc = 0;
+	size_t read = 0;
+
+	clear_buf(u);
+	write_ec_hdr(u);
+
+	rc = fill_data_buffer_from_file(u, &read);
+	if (rc != 0)
+		return rc;
+
+	if (u->v->vol_type == UBI_VID_STATIC)  {
+		add_static_info(u, read, action);
+	}
+
+	u->v->lnum = cpu_to_be32(u->blks_written);
+
+	if (action & MARK_AS_UPDATE) {
+		u->v->copy_flag = (u->v->copy_flag)++;
+	}
+
+	write_vid_hdr(u, action);
+	rc = write_to_output_stream(u);
+	if (rc != 0)
+		return rc;
+
+	/* Update current handle */
+	u->bytes_read += read;
+	u->blks_written++;
+	return 0;
+}
+
+int
+ubigen_write_complete(ubi_info_t u)
+{
+	size_t i;
+	int rc = 0;
+
+	for (i = 0; i < u->leb_total; i++) {
+		rc = ubigen_write_leb(u,  NO_ERROR);
+		if (rc != 0)
+			return rc;
+	}
+
+	return 0;
+}
+
+int
+ubigen_write_broken_update(ubi_info_t u, uint32_t blk)
+{
+	int rc = 0;
+
+	rc = skip_blks(u, blk);
+	if (rc != 0)
+		return rc;
+
+	rc = ubigen_write_leb(u, MARK_AS_UPDATE | BROKEN_DATA_CRC);
+	if (rc != 0)
+		return rc;
+
+
+	return 0;
+}
+
+void
+dump_info(ubi_info_t u ubi_unused)
+{
+#ifdef DEBUG
+	int err = 0;
+	if (!u) {
+		fprintf(stderr, "<empty>");
+		return;
+	}
+	if (!u->ec) {
+		fprintf(stderr, "<ec-empty>");
+		err = 1;
+	}
+	if (!u->v) {
+		fprintf(stderr, "<v-empty>");
+		err = 1;
+	}
+	if (err) return;
+
+	fprintf(stderr, "ubi volume\n");
+	fprintf(stderr, "version      :	  %8d\n", u->v->version);
+	fprintf(stderr, "vol_id	      :	  %8d\n", be32_to_cpu(u->v->vol_id));
+	fprintf(stderr, "vol_type     :	  %8s\n",
+		u->v->vol_type == UBI_VID_STATIC ?
+		"static" : "dynamic");
+	fprintf(stderr, "used_ebs     :	  %8d\n",
+		be32_to_cpu(u->v->used_ebs));
+	fprintf(stderr, "eb_size      : 0x%08x\n", u->eb_size);
+	fprintf(stderr, "leb_size     : 0x%08x\n", u->leb_size);
+	fprintf(stderr, "data_pad     : 0x%08x\n",
+		be32_to_cpu(u->v->data_pad));
+	fprintf(stderr, "leb_total    :	  %8d\n", u->leb_total);
+	fprintf(stderr, "header offs  : 0x%08x\n",
+		be32_to_cpu(u->ec->vid_hdr_offset));
+	fprintf(stderr, "bytes_total  :	  %8d\n", u->bytes_total);
+	fprintf(stderr, "  +  in MiB  : %8.2f M\n",
+		((float)(u->bytes_total)) / 1024 / 1024);
+	fprintf(stderr, "-------------------------------\n\n");
+#else
+	return;
+#endif
+}
+
+int
+ubigen_destroy(ubi_info_t *u)
+{
+	if (u == NULL)
+		return -EINVAL;
+
+	ubi_info_t tmp = *u;
+
+	if (tmp) {
+		if (tmp->v)
+			free(tmp->v);
+		if (tmp->ec)
+			free(tmp->ec);
+		if (tmp->buf)
+			free(tmp->buf);
+		free(tmp);
+	}
+	*u = NULL;
+	return 0;
+}
+
+void
+ubigen_init(void)
+{
+	init_crc32_table(crc32_table);
+}
+
+int
+ubigen_create(ubi_info_t* u, uint32_t vol_id, uint8_t vol_type,
+	      uint32_t eb_size, uint64_t ec, uint32_t alignment,
+	      uint8_t version, uint32_t vid_hdr_offset, uint8_t compat_flag,
+	      size_t data_size, FILE* fp_in, FILE* fp_out)
+{
+	int rc = 0;
+	ubi_info_t res = NULL;
+	uint32_t crc;
+	uint32_t data_offset;
+
+	if (alignment == 0) {
+		rc = EUBIGEN_INVALID_ALIGNMENT;
+		goto ubigen_create_err;
+	}
+	if ((fp_in == NULL) || (fp_out == NULL)) {
+		rc = -EINVAL;
+		goto ubigen_create_err;
+	}
+
+	res = (ubi_info_t) calloc(1, sizeof(struct ubi_info));
+	if (res == NULL) {
+		rc = -ENOMEM;
+		goto ubigen_create_err;
+	}
+
+	res->v = (struct ubi_vid_hdr*) calloc(1, sizeof(struct ubi_vid_hdr));
+	if (res->v == NULL) {
+		rc = -ENOMEM;
+		goto ubigen_create_err;
+	}
+
+	res->ec = (struct ubi_ec_hdr*) calloc(1, sizeof(struct ubi_ec_hdr));
+	if (res->ec == NULL) {
+		rc = -ENOMEM;
+		goto ubigen_create_err;
+	}
+
+	/* data which is needed in the general process */
+	vid_hdr_offset = vid_hdr_offset ? vid_hdr_offset : DEFAULT_VID_OFFSET;
+	data_offset = vid_hdr_offset + UBI_VID_HDR_SIZE;
+	res->bytes_total = data_size;
+	res->eb_size = eb_size ? eb_size : DEFAULT_BLOCKSIZE;
+	res->data_pad = (res->eb_size - data_offset) % alignment;
+	res->leb_size = res->eb_size - data_offset - res->data_pad;
+	res->leb_total = byte_to_blk(data_size, res->leb_size);
+	res->alignment = alignment;
+
+	if ((res->eb_size < (vid_hdr_offset + UBI_VID_HDR_SIZE))) {
+		rc = EUBIGEN_TOO_SMALL_EB;
+		goto ubigen_create_err;
+	}
+	res->fp_in = fp_in;
+	res->fp_out = fp_out;
+
+	/* vid hdr data which doesn't change */
+	res->v->magic = cpu_to_be32(UBI_VID_HDR_MAGIC);
+	res->v->version = version ? version : UBI_VERSION;
+	res->v->vol_type = vol_type;
+	res->v->vol_id = cpu_to_be32(vol_id);
+	res->v->compat = compat_flag;
+	res->v->data_pad = cpu_to_be32(res->data_pad);
+
+	/* static only: used_ebs */
+	if (res->v->vol_type == UBI_VID_STATIC) {
+		res->v->used_ebs = cpu_to_be32(byte_to_blk
+						(res->bytes_total,
+						 res->leb_size));
+	}
+
+	/* ec hdr (fixed, doesn't change) */
+	res->ec->magic = cpu_to_be32(UBI_EC_HDR_MAGIC);
+	res->ec->version = version ? version : UBI_VERSION;
+	res->ec->ec = cpu_to_be64(ec);
+	res->ec->vid_hdr_offset = cpu_to_be32(vid_hdr_offset);
+
+	res->ec->data_offset = cpu_to_be32(data_offset);
+
+	crc = clc_crc32(crc32_table, UBI_CRC32_INIT, res->ec,
+			UBI_EC_HDR_SIZE_CRC);
+	res->ec->hdr_crc = cpu_to_be32(crc);
+
+	/* prepare a read buffer */
+	res->buf = (uint8_t*) malloc (res->eb_size * sizeof(uint8_t));
+	if (res->buf == NULL) {
+		rc = -ENOMEM;
+		goto ubigen_create_err;
+	}
+
+	/* point to distinct regions within the buffer */
+	res->ptr_ec_hdr = res->buf;
+	res->ptr_vid_hdr = res->buf + be32_to_cpu(res->ec->vid_hdr_offset);
+	res->ptr_data = res->buf + be32_to_cpu(res->ec->vid_hdr_offset)
+		+ UBI_VID_HDR_SIZE;
+
+	rc = validate_ubi_info(res);
+	if (rc != 0) {
+		fprintf(stderr, "Volume validation failed: %d\n", rc);
+		goto ubigen_create_err;
+	}
+
+	dump_info(res);
+	*u = res;
+	return rc;
+
+ ubigen_create_err:
+	if (res) {
+		if (res->v)
+			free(res->v);
+		if (res->ec)
+			free(res->ec);
+		if (res->buf)
+			free(res->buf);
+		free(res);
+	}
+	*u = NULL;
+	return rc;
+}
+
+int
+ubigen_get_leb_size(ubi_info_t u, size_t* size)
+{
+	if (u == NULL)
+		return -EINVAL;
+
+	*size = u->leb_size;
+	return 0;
+}
+
+
+int
+ubigen_get_leb_total(ubi_info_t u, size_t* total)
+{
+	if (u == NULL)
+		return -EINVAL;
+
+	*total = u->leb_total;
+	return 0;
+}
+
+int
+ubigen_set_lvol_rec(ubi_info_t u, size_t reserved_bytes,
+		    const char* vol_name, struct ubi_vtbl_record *lvol_rec)
+{
+	uint32_t crc;
+
+	if ((u == NULL) || (vol_name == NULL))
+		return -EINVAL;
+
+	memset(lvol_rec, 0x0, UBI_VTBL_RECORD_SIZE);
+
+	lvol_rec->reserved_pebs =
+		cpu_to_be32(byte_to_blk(reserved_bytes, u->leb_size));
+	lvol_rec->alignment = cpu_to_be32(u->alignment);
+	lvol_rec->data_pad = u->v->data_pad;
+	lvol_rec->vol_type = u->v->vol_type;
+
+	lvol_rec->name_len =
+		cpu_to_be16((uint16_t)strlen((const char*)vol_name));
+
+	memcpy(lvol_rec->name, vol_name, UBI_VOL_NAME_MAX + 1);
+
+	crc = clc_crc32(crc32_table, UBI_CRC32_INIT,
+			lvol_rec, UBI_VTBL_RECORD_SIZE_CRC);
+	lvol_rec->crc =	 cpu_to_be32(crc);
+
+	return 0;
+}
diff --git a/ubi-utils/src/libubimirror.c b/ubi-utils/old-utils/src/libubimirror.c
index d06770e..d06770e 100644
--- a/ubi-utils/src/libubimirror.c
+++ b/ubi-utils/old-utils/src/libubimirror.c
diff --git a/ubi-utils/src/list.c b/ubi-utils/old-utils/src/list.c
index 6eb716b..6eb716b 100644
--- a/ubi-utils/src/list.c
+++ b/ubi-utils/old-utils/src/list.c
diff --git a/ubi-utils/src/list.h b/ubi-utils/old-utils/src/list.h
index e8452a2..e8452a2 100644
--- a/ubi-utils/src/list.h
+++ b/ubi-utils/old-utils/src/list.h
diff --git a/ubi-utils/src/mkbootenv.c b/ubi-utils/old-utils/src/mkbootenv.c
index 50fc8ac..50fc8ac 100644
--- a/ubi-utils/src/mkbootenv.c
+++ b/ubi-utils/old-utils/src/mkbootenv.c
diff --git a/ubi-utils/src/nand2bin.c b/ubi-utils/old-utils/src/nand2bin.c
index 93ba29f..93ba29f 100644
--- a/ubi-utils/src/nand2bin.c
+++ b/ubi-utils/old-utils/src/nand2bin.c
diff --git a/ubi-utils/src/nandcorr.c b/ubi-utils/old-utils/src/nandcorr.c
index caa07e2..caa07e2 100644
--- a/ubi-utils/src/nandcorr.c
+++ b/ubi-utils/old-utils/src/nandcorr.c
diff --git a/ubi-utils/src/nandecc.c b/ubi-utils/old-utils/src/nandecc.c
index 71660ef..71660ef 100644
--- a/ubi-utils/src/nandecc.c
+++ b/ubi-utils/old-utils/src/nandecc.c
diff --git a/ubi-utils/src/nandecc.h b/ubi-utils/old-utils/src/nandecc.h
index bcf1982..bcf1982 100644
--- a/ubi-utils/src/nandecc.h
+++ b/ubi-utils/old-utils/src/nandecc.h
diff --git a/ubi-utils/src/pddcustomize.c b/ubi-utils/old-utils/src/pddcustomize.c
index 1eb9b9a..1eb9b9a 100644
--- a/ubi-utils/src/pddcustomize.c
+++ b/ubi-utils/old-utils/src/pddcustomize.c
diff --git a/ubi-utils/src/peb.c b/ubi-utils/old-utils/src/peb.c
index 08b770f..08b770f 100644
--- a/ubi-utils/src/peb.c
+++ b/ubi-utils/old-utils/src/peb.c
diff --git a/ubi-utils/src/peb.h b/ubi-utils/old-utils/src/peb.h
index 246bce8..246bce8 100644
--- a/ubi-utils/src/peb.h
+++ b/ubi-utils/old-utils/src/peb.h
diff --git a/ubi-utils/src/pfi.c b/ubi-utils/old-utils/src/pfi.c
index fa835e2..fa835e2 100644
--- a/ubi-utils/src/pfi.c
+++ b/ubi-utils/old-utils/src/pfi.c
diff --git a/ubi-utils/src/pfi.h b/ubi-utils/old-utils/src/pfi.h
index 8c5cc07..8c5cc07 100644
--- a/ubi-utils/src/pfi.h
+++ b/ubi-utils/old-utils/src/pfi.h
diff --git a/ubi-utils/src/pfi2bin.c b/ubi-utils/old-utils/src/pfi2bin.c
index 34ecc92..34ecc92 100644
--- a/ubi-utils/src/pfi2bin.c
+++ b/ubi-utils/old-utils/src/pfi2bin.c
diff --git a/ubi-utils/src/pfiflash.c b/ubi-utils/old-utils/src/pfiflash.c
index 754fe33..754fe33 100644
--- a/ubi-utils/src/pfiflash.c
+++ b/ubi-utils/old-utils/src/pfiflash.c
diff --git a/ubi-utils/src/pfiflash.h b/ubi-utils/old-utils/src/pfiflash.h
index 039705d..039705d 100644
--- a/ubi-utils/src/pfiflash.h
+++ b/ubi-utils/old-utils/src/pfiflash.h
diff --git a/ubi-utils/src/pfiflash_error.h b/ubi-utils/old-utils/src/pfiflash_error.h
index 0f27f4a..0f27f4a 100644
--- a/ubi-utils/src/pfiflash_error.h
+++ b/ubi-utils/old-utils/src/pfiflash_error.h
diff --git a/ubi-utils/src/reader.c b/ubi-utils/old-utils/src/reader.c
index 0ea8c6d..0ea8c6d 100644
--- a/ubi-utils/src/reader.c
+++ b/ubi-utils/old-utils/src/reader.c
diff --git a/ubi-utils/src/reader.h b/ubi-utils/old-utils/src/reader.h
index 715e464..715e464 100644
--- a/ubi-utils/src/reader.h
+++ b/ubi-utils/old-utils/src/reader.h
diff --git a/ubi-utils/src/ubigen.c b/ubi-utils/old-utils/src/ubigen.c
index bb55fa9..bb55fa9 100644
--- a/ubi-utils/src/ubigen.c
+++ b/ubi-utils/old-utils/src/ubigen.c
diff --git a/ubi-utils/src/ubigen.h b/ubi-utils/old-utils/src/ubigen.h
index 8d29120..8d29120 100644
--- a/ubi-utils/src/ubigen.h
+++ b/ubi-utils/old-utils/src/ubigen.h
diff --git a/ubi-utils/src/ubimirror.c b/ubi-utils/old-utils/src/ubimirror.c
index da05a8b..da05a8b 100644
--- a/ubi-utils/src/ubimirror.c
+++ b/ubi-utils/old-utils/src/ubimirror.c
diff --git a/ubi-utils/src/ubimirror.h b/ubi-utils/old-utils/src/ubimirror.h
index d7ae2ad..d7ae2ad 100644
--- a/ubi-utils/src/ubimirror.h
+++ b/ubi-utils/old-utils/src/ubimirror.h
diff --git a/ubi-utils/src/unubi.c b/ubi-utils/old-utils/src/unubi.c
index 0f72b18..0f72b18 100644
--- a/ubi-utils/src/unubi.c
+++ b/ubi-utils/old-utils/src/unubi.c
diff --git a/ubi-utils/src/unubi_analyze.c b/ubi-utils/old-utils/src/unubi_analyze.c
index ceaa85f..ceaa85f 100644
--- a/ubi-utils/src/unubi_analyze.c
+++ b/ubi-utils/old-utils/src/unubi_analyze.c
diff --git a/ubi-utils/src/unubi_analyze.h b/ubi-utils/old-utils/src/unubi_analyze.h
index c478f53..c478f53 100644
--- a/ubi-utils/src/unubi_analyze.h
+++ b/ubi-utils/old-utils/src/unubi_analyze.h
diff --git a/ubi-utils/testcases.txt b/ubi-utils/old-utils/testcases.txt
index dcc1c35..dcc1c35 100644
--- a/ubi-utils/testcases.txt
+++ b/ubi-utils/old-utils/testcases.txt
diff --git a/ubi-utils/new-utils/src/common.c b/ubi-utils/src/common.c
index bcb775c..bcb775c 100644
--- a/ubi-utils/new-utils/src/common.c
+++ b/ubi-utils/src/common.c
diff --git a/ubi-utils/new-utils/src/common.h b/ubi-utils/src/common.h
index 56fa020..56fa020 100644
--- a/ubi-utils/new-utils/src/common.h
+++ b/ubi-utils/src/common.h
diff --git a/ubi-utils/src/crc32.c b/ubi-utils/src/crc32.c
index 666e217..6b1e50c 100644
--- a/ubi-utils/src/crc32.c
+++ b/ubi-utils/src/crc32.c
@@ -1,83 +1,95 @@
 /*
- * Copyright (c) International Business Machines Corp., 2006
+ *  COPYRIGHT (C) 1986 Gary S. Brown.  You may use this program, or
+ *  code or tables extracted from it, as desired without restriction.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ *  First, the polynomial itself and its table of feedback terms.  The
+ *  polynomial is
+ *  X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0
  *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
+ *  Note that we take it "backwards" and put the highest-order term in
+ *  the lowest-order bit.  The X^32 term is "implied"; the LSB is the
+ *  X^31 term, etc.  The X^0 term (usually shown as "+1") results in
+ *  the MSB being 1
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *  Note that the usual hardware shift register implementation, which
+ *  is what we're using (we're merely optimizing it by doing eight-bit
+ *  chunks at a time) shifts bits into the lowest-order term.  In our
+ *  implementation, that means shifting towards the right.  Why do we
+ *  do it this way?  Because the calculated CRC must be transmitted in
+ *  order from highest-order term to lowest-order term.  UARTs transmit
+ *  characters in order from LSB to MSB.  By storing the CRC this way
+ *  we hand it to the UART in the order low-byte to high-byte; the UART
+ *  sends each low-bit to hight-bit; and the result is transmission bit
+ *  by bit from highest- to lowest-order term without requiring any bit
+ *  shuffling on our part.  Reception works similarly
  *
- * Author: Thomas Gleixner
- */
-
-/*
- * CRC32 functions
+ *  The feedback terms table consists of 256, 32-bit entries.  Notes
  *
- * Can be compiled as seperate object, but is included into the ipl source
- * so gcc can inline the functions. We optimize for size so the omission of
- * the function frame is helpful.
+ *      The table can be generated at runtime if desired; code to do so
+ *      is shown later.  It might not be obvious, but the feedback
+ *      terms simply represent the results of eight shift/xor opera
+ *      tions for all combinations of data and CRC register values
  *
+ *      The values must be right-shifted by eight bits by the "updcrc
+ *      logic; the shift must be unsigned (bring in zeroes).  On some
+ *      hardware you could probably optimize the shift in assembler by
+ *      using byte-swap instructions
+ *      polynomial $edb88320
  */
 
 #include <stdint.h>
-#include <crc32.h>
-
-/* CRC polynomial */
-#define CRC_POLY	0xEDB88320
-
-/**
- * init_crc32_table - Initialize crc table
- *
- * @table:	pointer to the CRC table which must be initialized
- *
- * Create CRC32 table for given polynomial. The table is created with
- * the lowest order term in the highest order bit. So the x^32 term
- * has to implied in the crc calculation function.
- */
-void init_crc32_table(uint32_t *table)
-{
-	uint32_t crc;
-	int i, j;
-
-	for (i = 0; i < 256; i++) {
-		crc = i;
-		for (j = 8; j > 0; j--) {
-			if (crc & 1)
-				crc = (crc >> 1) ^ CRC_POLY;
-			else
-				crc >>= 1;
-		}
-		table[i] = crc;
-	}
-}
-
-/**
- * clc_crc32 - Calculate CRC32 over a buffer
- *
- * @table:	pointer to the CRC table
- * @crc:	initial crc value
- * @buf:	pointer to the buffer
- * @len:	number of bytes to calc
- *
- * Returns the updated crc value.
- *
- * The algorithm resembles a hardware shift register, but calculates 8
- * bit at once.
- */
-uint32_t clc_crc32(uint32_t *table, uint32_t crc, void *buf,
-		   int len)
-{
-	const unsigned char *p = buf;
 
-	while(--len >= 0)
-		crc = table[(crc ^ *p++) & 0xff] ^ (crc >> 8);
-	return crc;
-}
+const uint32_t crc32_table[256] = {
+	0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
+	0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
+	0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
+	0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
+	0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
+	0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
+	0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
+	0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
+	0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
+	0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
+	0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
+	0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
+	0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
+	0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
+	0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
+	0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
+	0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
+	0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
+	0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
+	0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
+	0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
+	0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
+	0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
+	0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
+	0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
+	0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
+	0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
+	0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
+	0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
+	0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
+	0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
+	0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
+	0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
+	0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
+	0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
+	0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
+	0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
+	0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
+	0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
+	0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
+	0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
+	0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
+	0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
+	0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
+	0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
+	0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
+	0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
+	0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
+	0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
+	0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
+	0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
+	0x2d02ef8dL
+};
diff --git a/ubi-utils/src/crc32.h b/ubi-utils/src/crc32.h
index 31362b0..ee3145b 100644
--- a/ubi-utils/src/crc32.h
+++ b/ubi-utils/src/crc32.h
@@ -1,36 +1,19 @@
-#ifndef __CRC32_H__
-#define __CRC32_H__
-/*
- * Copyright (c) International Business Machines Corp., 2006
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
+#ifndef CRC32_H
+#define CRC32_H
 
-/*
- * Author: Thomas Gleixner
- *
- * CRC32 functions
- *
- * Can be compiled as seperate object, but is included into the ipl source
- * so gcc can inline the functions. We optimize for size so the omission of
- * the function frame is helpful.
- *
- */
 #include <stdint.h>
 
-void init_crc32_table(uint32_t *table);
-uint32_t clc_crc32(uint32_t *table, uint32_t crc, void *buf, int len);
+extern const uint32_t crc32_table[256];
 
-#endif /* __CRC32_H__ */
+/* Return a 32-bit CRC of the contents of the buffer. */
+
+	static inline uint32_t
+crc32(uint32_t val, const void *ss, int len)
+{
+	const unsigned char *s = ss;
+	while (--len >= 0)
+		val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
+	return val;
+}
+
+#endif
diff --git a/ubi-utils/new-utils/src/dictionary.c b/ubi-utils/src/dictionary.c
index b7c9ebf..b7c9ebf 100644
--- a/ubi-utils/new-utils/src/dictionary.c
+++ b/ubi-utils/src/dictionary.c
diff --git a/ubi-utils/new-utils/src/dictionary.h b/ubi-utils/src/dictionary.h
index c7d1790..c7d1790 100644
--- a/ubi-utils/new-utils/src/dictionary.h
+++ b/ubi-utils/src/dictionary.h
diff --git a/ubi-utils/new-utils/src/libiniparser.c b/ubi-utils/src/libiniparser.c
index 3bea51e..3bea51e 100644
--- a/ubi-utils/new-utils/src/libiniparser.c
+++ b/ubi-utils/src/libiniparser.c
diff --git a/ubi-utils/new-utils/src/libmtd.c b/ubi-utils/src/libmtd.c
index b60ddbd..b60ddbd 100644
--- a/ubi-utils/new-utils/src/libmtd.c
+++ b/ubi-utils/src/libmtd.c
diff --git a/ubi-utils/new-utils/src/libscan.c b/ubi-utils/src/libscan.c
index dc1f083..dc1f083 100644
--- a/ubi-utils/new-utils/src/libscan.c
+++ b/ubi-utils/src/libscan.c
diff --git a/ubi-utils/src/libubi.c b/ubi-utils/src/libubi.c
index a536b47..1aa66d8 100644
--- a/ubi-utils/src/libubi.c
+++ b/ubi-utils/src/libubi.c
@@ -15,7 +15,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
- * Author: Artem B. Bityutskiy
+ * Author: Artem Bityutskiy
  *
  * UBI (Unsorted Block Images) library.
  */
@@ -27,14 +27,487 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <dirent.h>
-#include <errno.h>
 #include <unistd.h>
 #include <sys/ioctl.h>
 #include <limits.h>
 #include "libubi.h"
 #include "libubi_int.h"
+#include "common.h"
 
-libubi_t libubi_open(void)
+#define PROGRAM_NAME "libubi"
+
+/**
+ * mkpath - compose full path from 2 given components.
+ * @path: the first component
+ * @name: the second component
+ *
+ * This function returns the resulting path in case of success and %NULL in
+ * case of failure.
+ */
+static char *mkpath(const char *path, const char *name)
+{
+	char *n;
+	int len1 = strlen(path);
+	int len2 = strlen(name);
+
+	n = malloc(len1 + len2 + 2);
+	if (!n) {
+		sys_errmsg("cannot allocate %d bytes", len1 + len2 + 2);
+		return NULL;
+	}
+
+	memcpy(n, path, len1);
+	if (n[len1 - 1] != '/')
+		n[len1++] = '/';
+
+	memcpy(n + len1, name, len2 + 1);
+	return n;
+}
+
+/**
+ * read_positive_ll - read a positive 'long long' value from a file.
+ * @file: the file to read from
+ * @value: the result is stored here
+ *
+ * This function reads file @file and interprets its contents as a positive
+ * 'long long' integer. If this is not true, it fails with %EINVAL error code.
+ * Returns %0 in case of success and %-1 in case of failure.
+ */
+static int read_positive_ll(const char *file, long long *value)
+{
+	int fd, rd;
+	char buf[50];
+
+	fd = open(file, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rd = read(fd, buf, 50);
+	if (rd == -1) {
+		sys_errmsg("cannot read \"%s\"", file);
+		goto out_error;
+	}
+	if (rd == 50) {
+		errmsg("contents of \"%s\" is too long", file);
+		errno = EINVAL;
+		goto out_error;
+	}
+
+	if (sscanf(buf, "%lld\n", value) != 1) {
+		/* This must be a UBI bug */
+		errmsg("cannot read integer from \"%s\"\n", file);
+		errno = EINVAL;
+		goto out_error;
+	}
+
+	if (*value < 0) {
+		errmsg("negative value %lld in \"%s\"", *value, file);
+		errno = EINVAL;
+		goto out_error;
+	}
+
+	if (close(fd))
+		return sys_errmsg("close failed on \"%s\"", file);
+
+	return 0;
+
+out_error:
+	close(fd);
+	return -1;
+}
+
+/**
+ * read_positive_int - read a positive 'int' value from a file.
+ * @file: the file to read from
+ * @value: the result is stored here
+ *
+ * This function is the same as 'read_positive_ll()', but it reads an 'int'
+ * value, not 'long long'.
+ */
+static int read_positive_int(const char *file, int *value)
+{
+	long long res;
+
+	if (read_positive_ll(file, &res))
+		return -1;
+
+	/* Make sure the value is not too big */
+	if (res > INT_MAX) {
+		errmsg("value %lld read from file \"%s\" is out of range",
+		       res, file);
+		errno = EINVAL;
+		return -1;
+	}
+
+	*value = res;
+	return 0;
+}
+
+/**
+ * read_data - read data from a file.
+ * @file: the file to read from
+ * @buf: the buffer to read to
+ * @buf_len: buffer length
+ *
+ * This function returns number of read bytes in case of success and %-1 in
+ * case of failure. Note, if the file contains more then @buf_len bytes of
+ * date, this function fails with %EINVAL error code.
+ */
+static int read_data(const char *file, void *buf, int buf_len)
+{
+	int fd, rd, tmp, tmp1;
+
+	fd = open(file, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rd = read(fd, buf, buf_len);
+	if (rd == -1) {
+		sys_errmsg("cannot read \"%s\"", file);
+		goto out_error;
+	}
+
+	/* Make sure all data is read */
+	tmp1 = read(fd, &tmp, 1);
+	if (tmp1 == 1) {
+		sys_errmsg("cannot read \"%s\"", file);
+		goto out_error;
+	}
+	if (tmp1) {
+		errmsg("file \"%s\" contains too much data (> %d bytes)",
+		       file, buf_len);
+		errno = EINVAL;
+		goto out_error;
+	}
+
+	if (close(fd)) {
+		sys_errmsg("close failed on \"%s\"", file);
+		return -1;
+	}
+
+	return rd;
+
+out_error:
+	close(fd);
+	return -1;
+}
+
+/**
+ * read_major - read major and minor numbers from a file.
+ * @file: name of the file to read from
+ * @major: major number is returned here
+ * @minor: minor number is returned here
+ *
+ * This function returns % in case of succes, and %-1 in case of failure.
+ */
+static int read_major(const char *file, int *major, int *minor)
+{
+	int ret;
+	char buf[50];
+
+	ret = read_data(file, buf, 50);
+	if (ret < 0)
+		return ret;
+
+	ret = sscanf(buf, "%d:%d\n", major, minor);
+	if (ret != 2) {
+		errno = EINVAL;
+		return errmsg("\"%s\" does not have major:minor format", file);
+	}
+
+	if (*major < 0 || *minor < 0) {
+		errno = EINVAL;
+		return errmsg("bad major:minor %d:%d in \"%s\"",
+			      *major, *minor, file);
+	}
+
+	return 0;
+}
+
+/**
+ * dev_read_int - read a positive 'int' value from an UBI device sysfs file.
+ * @patt: file pattern to read from
+ * @dev_num:  UBI device number
+ * @value: the result is stored here
+ *
+ * This function returns %0 in case of success and %-1 in case of failure.
+ */
+static int dev_read_int(const char *patt, int dev_num, int *value)
+{
+	char file[strlen(patt) + 50];
+
+	sprintf(file, patt, dev_num);
+	return read_positive_int(file, value);
+}
+
+/**
+ * vol_read_int - read a positive 'int' value from an UBI volume sysfs file.
+ * @patt: file pattern to read from
+ * @dev_num: UBI device number
+ * @vol_id: volume ID
+ * @value: the result is stored here
+ *
+ * This function returns %0 in case of success and %-1 in case of failure.
+ */
+static int vol_read_int(const char *patt, int dev_num, int vol_id, int *value)
+{
+	char file[strlen(patt) + 100];
+
+	sprintf(file, patt, dev_num, vol_id);
+	return read_positive_int(file, value);
+}
+
+/**
+ * dev_read_ll - read a positive 'long long' value from an UBI device sysfs file.
+ * @patt: file pattern to read from
+ * @dev_num: UBI device number
+ * @value: the result is stored here
+ *
+ * This function returns %0 in case of success and %-1 in case of failure.
+ */
+static int dev_read_ll(const char *patt, int dev_num, long long *value)
+{
+	char file[strlen(patt) + 50];
+
+	sprintf(file, patt, dev_num);
+	return read_positive_ll(file, value);
+}
+
+/**
+ * vol_read_ll - read a positive 'long long' value from an UBI volume sysfs file.
+ * @patt: file pattern to read from
+ * @dev_num: UBI device number
+ * @vol_id: volume ID
+ * @value: the result is stored here
+ *
+ * This function returns %0 in case of success and %-1 in case of failure.
+ */
+static int vol_read_ll(const char *patt, int dev_num, int vol_id,
+		       long long *value)
+{
+	char file[strlen(patt) + 100];
+
+	sprintf(file, patt, dev_num, vol_id);
+	return read_positive_ll(file, value);
+}
+
+/**
+ * vol_read_data - read data from an UBI volume's sysfs file.
+ * @patt: file pattern to read from
+ * @dev_num: UBI device number
+ * @vol_id: volume ID
+ * @buf: buffer to read to
+ * @buf_len: buffer length
+ *
+ * This function returns number of read bytes in case of success and %-1 in
+ * case of failure.
+ */
+static int vol_read_data(const char *patt, int dev_num, int vol_id, void *buf,
+			 int buf_len)
+{
+	char file[strlen(patt) + 100];
+
+	sprintf(file, patt, dev_num, vol_id);
+	return read_data(file, buf, buf_len);
+}
+
+/**
+ * dev_get_major - get major and minor numbers of an UBI device.
+ * @lib: libubi descriptor
+ * @dev_num: UBI device number
+ * @major: major number is returned here
+ * @minor: minor number is returned here
+ *
+ * This function returns zero in case of succes and %-1 in case of failure.
+ */
+static int dev_get_major(struct libubi *lib, int dev_num, int *major, int *minor)
+{
+	char file[strlen(lib->dev_dev) + 50];
+
+	sprintf(file, lib->dev_dev, dev_num);
+	return read_major(file, major, minor);
+}
+
+/**
+ * vol_get_major - get major and minor numbers of an UBI volume.
+ * @lib: libubi descriptor
+ * @dev_num: UBI device number
+ * @vol_id: volume ID
+ * @major: major number is returned here
+ * @minor: minor number is returned here
+ *
+ * This function returns zero in case of succes and %-1 in case of failure.
+ */
+static int vol_get_major(struct libubi *lib, int dev_num, int vol_id,
+			 int *major, int *minor)
+{
+	char file[strlen(lib->vol_dev) + 100];
+
+	sprintf(file, lib->vol_dev, dev_num, vol_id);
+	return read_major(file, major, minor);
+}
+
+/**
+ * vol_node2nums - find UBI device number and volume ID by volume device node
+ *                 file.
+ * @lib: UBI library descriptor
+ * @node: UBI character device node name
+ * @dev_num: UBI device number is returned here
+ * @vol_id: volume ID is returned hers
+ *
+ * This function returns zero in case of succes and %-1 in case of failure.
+ */
+static int vol_node2nums(struct libubi *lib, const char *node, int *dev_num,
+			 int *vol_id)
+{
+	struct stat st;
+	struct ubi_info info;
+	int i, fd, major, minor;
+	char file[strlen(lib->ubi_vol) + 100];
+
+	if (stat(node, &st))
+		return sys_errmsg("cannot get information about \"%s\"",
+				  node);
+
+	if (!S_ISCHR(st.st_mode)) {
+		errno = EINVAL;
+		return errmsg("\"%s\" is not a character device", node);
+	}
+
+	major = major(st.st_rdev);
+	minor = minor(st.st_rdev);
+
+	if (minor == 0) {
+		errno = EINVAL;
+		return errmsg("\"%s\" is not a volume character device", node);
+	}
+
+	if (ubi_get_info((libubi_t *)lib, &info))
+		return -1;
+
+	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
+		int major1, minor1, ret;
+
+		ret = dev_get_major(lib, i, &major1, &minor1);
+		if (ret) {
+			if (errno == ENOENT)
+				continue;
+			return -1;
+		}
+
+		if (major1 == major)
+			break;
+	}
+
+	if (i > info.highest_dev_num) {
+		errno = ENODEV;
+		return -1;
+	}
+
+	/* Make sure this UBI volume exists */
+	sprintf(file, lib->ubi_vol, i, minor - 1);
+	fd = open(file, O_RDONLY);
+	if (fd == -1) {
+		errno = ENODEV;
+		return -1;
+	}
+
+	*dev_num = i;
+	*vol_id = minor - 1;
+	errno = 0;
+	return 0;
+}
+
+/**
+ * dev_node2num - find UBI device number by its character device node.
+ * @lib: UBI library descriptor
+ * @node: UBI character device node name
+ *
+ * This function returns positive UBI device number in case of success and %-1
+ * in case of failure.
+ */
+static int dev_node2num(struct libubi *lib, const char *node, int *dev_num)
+{
+	struct stat st;
+	struct ubi_info info;
+	int i, major, minor;
+
+	if (stat(node, &st))
+		return sys_errmsg("cannot get information about \"%s\"",
+				  node);
+
+	if (!S_ISCHR(st.st_mode)) {
+		errno = EINVAL;
+		return errmsg("\"%s\" is not a character device", node);
+	}
+
+	major = major(st.st_rdev);
+	minor = minor(st.st_rdev);
+
+	if (minor != 0) {
+		errno = EINVAL;
+		return errmsg("\"%s\" is not an UBI character device", node);
+	}
+
+	if (ubi_get_info((libubi_t *)lib, &info))
+		return -1;
+
+	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
+		int major1, minor1, ret;
+
+		ret = dev_get_major(lib, i, &major1, &minor1);
+		if (ret) {
+			if (errno == ENOENT)
+				continue;
+			return -1;
+		}
+
+		if (major1 == major) {
+			if (minor1 != 0) {
+				errmsg("UBI character device minor number is "
+				       "%d, but must be 0", minor1);
+				errno = EINVAL;
+				return -1;
+			}
+			errno = 0;
+			*dev_num = i;
+			return 0;
+		}
+	}
+
+	errno = ENODEV;
+	return -1;
+}
+
+int mtd_num2ubi_dev(libubi_t desc, int mtd_num, int *dev_num)
+{
+	struct ubi_info info;
+	int i, ret, mtd_num1;
+	struct libubi *lib = desc;
+
+	if (ubi_get_info(desc, &info))
+		return -1;
+
+	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
+		ret = dev_read_int(lib->dev_mtd_num, i, &mtd_num1);
+		if (ret) {
+			if (errno == ENOENT)
+				continue;
+			return -1;
+		}
+
+		if (mtd_num1 == mtd_num) {
+			errno = 0;
+			*dev_num = i;
+			return 0;
+		}
+	}
+
+	errno = 0;
+	return -1;
+}
+
+libubi_t libubi_open(int required)
 {
 	int fd, version;
 	struct libubi *lib;
@@ -46,132 +519,130 @@ libubi_t libubi_open(void)
 	/* TODO: this must be discovered instead */
 	lib->sysfs = strdup("/sys");
 	if (!lib->sysfs)
-		goto error;
+		goto out_error;
+
+	lib->sysfs_ctrl = mkpath(lib->sysfs, SYSFS_CTRL);
+	if (!lib->sysfs_ctrl)
+		goto out_error;
+
+	lib->ctrl_dev = mkpath(lib->sysfs_ctrl, CTRL_DEV);
+	if (!lib->ctrl_dev)
+		goto out_error;
 
 	lib->sysfs_ubi = mkpath(lib->sysfs, SYSFS_UBI);
 	if (!lib->sysfs_ubi)
-		goto error;
+		goto out_error;
 
 	/* Make sure UBI is present */
 	fd = open(lib->sysfs_ubi, O_RDONLY);
-	if (fd == -1)
-		goto error;
-	close(fd);
+	if (fd == -1) {
+		if (required)
+			errmsg("cannot open \"%s\", UBI does not seem to "
+			       "exist in system", lib->sysfs_ubi);
+		goto out_error;
+	}
+
+	if (close(fd)) {
+		sys_errmsg("close failed on \"%s\"", lib->sysfs_ubi);
+		goto out_error;
+	}
 
 	lib->ubi_dev = mkpath(lib->sysfs_ubi, UBI_DEV_NAME_PATT);
 	if (!lib->ubi_dev)
-		goto error;
+		goto out_error;
 
 	lib->ubi_version = mkpath(lib->sysfs_ubi, UBI_VER);
 	if (!lib->ubi_version)
-		goto error;
+		goto out_error;
 
 	lib->dev_dev = mkpath(lib->ubi_dev, DEV_DEV);
 	if (!lib->dev_dev)
-		goto error;
+		goto out_error;
 
 	lib->dev_avail_ebs = mkpath(lib->ubi_dev, DEV_AVAIL_EBS);
 	if (!lib->dev_avail_ebs)
-		goto error;
+		goto out_error;
 
 	lib->dev_total_ebs = mkpath(lib->ubi_dev, DEV_TOTAL_EBS);
 	if (!lib->dev_total_ebs)
-		goto error;
+		goto out_error;
 
 	lib->dev_bad_count = mkpath(lib->ubi_dev, DEV_BAD_COUNT);
 	if (!lib->dev_bad_count)
-		goto error;
+		goto out_error;
 
 	lib->dev_eb_size = mkpath(lib->ubi_dev, DEV_EB_SIZE);
 	if (!lib->dev_eb_size)
-		goto error;
+		goto out_error;
 
 	lib->dev_max_ec = mkpath(lib->ubi_dev, DEV_MAX_EC);
 	if (!lib->dev_max_ec)
-		goto error;
+		goto out_error;
 
 	lib->dev_bad_rsvd = mkpath(lib->ubi_dev, DEV_MAX_RSVD);
 	if (!lib->dev_bad_rsvd)
-		goto error;
+		goto out_error;
 
 	lib->dev_max_vols = mkpath(lib->ubi_dev, DEV_MAX_VOLS);
 	if (!lib->dev_max_vols)
-		goto error;
+		goto out_error;
 
 	lib->dev_min_io_size = mkpath(lib->ubi_dev, DEV_MIN_IO_SIZE);
 	if (!lib->dev_min_io_size)
-		goto error;
+		goto out_error;
+
+	lib->dev_mtd_num = mkpath(lib->ubi_dev, DEV_MTD_NUM);
+	if (!lib->dev_mtd_num)
+		goto out_error;
 
 	lib->ubi_vol = mkpath(lib->sysfs_ubi, UBI_VOL_NAME_PATT);
 	if (!lib->ubi_vol)
-		goto error;
+		goto out_error;
 
 	lib->vol_type = mkpath(lib->ubi_vol, VOL_TYPE);
 	if (!lib->vol_type)
-		goto error;
+		goto out_error;
 
 	lib->vol_dev = mkpath(lib->ubi_vol, VOL_DEV);
 	if (!lib->vol_dev)
-		goto error;
+		goto out_error;
 
 	lib->vol_alignment = mkpath(lib->ubi_vol, VOL_ALIGNMENT);
 	if (!lib->vol_alignment)
-		goto error;
+		goto out_error;
 
 	lib->vol_data_bytes = mkpath(lib->ubi_vol, VOL_DATA_BYTES);
 	if (!lib->vol_data_bytes)
-		goto error;
+		goto out_error;
 
 	lib->vol_rsvd_ebs = mkpath(lib->ubi_vol, VOL_RSVD_EBS);
 	if (!lib->vol_rsvd_ebs)
-		goto error;
+		goto out_error;
 
 	lib->vol_eb_size = mkpath(lib->ubi_vol, VOL_EB_SIZE);
 	if (!lib->vol_eb_size)
-		goto error;
+		goto out_error;
 
 	lib->vol_corrupted = mkpath(lib->ubi_vol, VOL_CORRUPTED);
 	if (!lib->vol_corrupted)
-		goto error;
+		goto out_error;
 
 	lib->vol_name = mkpath(lib->ubi_vol, VOL_NAME);
 	if (!lib->vol_name)
-		goto error;
+		goto out_error;
 
-	if (read_int(lib->ubi_version, &version))
-		goto error;
+	if (read_positive_int(lib->ubi_version, &version))
+		goto out_error;
 	if (version != LIBUBI_UBI_VERSION) {
-		fprintf(stderr, "LIBUBI: this library was made for UBI version "
-				"%d, but UBI version %d is detected\n",
-			LIBUBI_UBI_VERSION, version);
-		goto error;
+		errmsg("this library was made for UBI version %d, but UBI "
+		       "version %d is detected\n", LIBUBI_UBI_VERSION, version);
+		goto out_error;
 	}
 
 	return lib;
 
-error:
-	free(lib->vol_corrupted);
-	free(lib->vol_eb_size);
-	free(lib->vol_rsvd_ebs);
-	free(lib->vol_data_bytes);
-	free(lib->vol_alignment);
-	free(lib->vol_dev);
-	free(lib->vol_type);
-	free(lib->ubi_vol);
-	free(lib->dev_min_io_size);
-	free(lib->dev_max_vols);
-	free(lib->dev_bad_rsvd);
-	free(lib->dev_max_ec);
-	free(lib->dev_eb_size);
-	free(lib->dev_bad_count);
-	free(lib->dev_total_ebs);
-	free(lib->dev_avail_ebs);
-	free(lib->dev_dev);
-	free(lib->ubi_version);
-	free(lib->ubi_dev);
-	free(lib->sysfs_ubi);
-	free(lib->sysfs);
-	free(lib);
+out_error:
+	libubi_close((libubi_t)lib);
 	return NULL;
 }
 
@@ -188,6 +659,7 @@ void libubi_close(libubi_t desc)
 	free(lib->vol_dev);
 	free(lib->vol_type);
 	free(lib->ubi_vol);
+	free(lib->dev_mtd_num);
 	free(lib->dev_min_io_size);
 	free(lib->dev_max_vols);
 	free(lib->dev_bad_rsvd);
@@ -200,10 +672,143 @@ void libubi_close(libubi_t desc)
 	free(lib->ubi_version);
 	free(lib->ubi_dev);
 	free(lib->sysfs_ubi);
+	free(lib->ctrl_dev);
+	free(lib->sysfs_ctrl);
 	free(lib->sysfs);
 	free(lib);
 }
 
+int ubi_attach_mtd(libubi_t desc, const char *node,
+		   struct ubi_attach_request *req)
+{
+	int fd, ret;
+	struct ubi_attach_req r;
+
+	memset(&r, sizeof(struct ubi_attach_req), '\0');
+
+	desc = desc;
+	r.ubi_num = req->dev_num;
+	r.mtd_num = req->mtd_num;
+	r.vid_hdr_offset = req->vid_hdr_offset;
+
+	fd = open(node, O_RDONLY);
+	if (fd == -1)
+		return sys_errmsg("cannot open \"%s\"", node);
+
+	ret = ioctl(fd, UBI_IOCATT, &r);
+	close(fd);
+	if (ret == -1)
+		return -1;
+
+	req->dev_num = r.ubi_num;
+
+#ifdef UDEV_SETTLE_HACK
+	if (system("udevsettle") == -1)
+		return -1;
+#endif
+
+	return ret;
+}
+
+int ubi_detach_mtd(libubi_t desc, const char *node, int mtd_num)
+{
+	int ret, ubi_dev;
+
+	ret = mtd_num2ubi_dev(desc, mtd_num, &ubi_dev);
+	if (ret == -1) {
+		errno = ENODEV;
+		return ret;
+	}
+
+	return ubi_remove_dev(desc, node, ubi_dev);
+}
+
+int ubi_remove_dev(libubi_t desc, const char *node, int ubi_dev)
+{
+	int fd, ret;
+
+	desc = desc;
+
+	fd = open(node, O_RDONLY);
+	if (fd == -1)
+		return sys_errmsg("cannot open \"%s\"", node);
+	ret = ioctl(fd, UBI_IOCDET, &ubi_dev);
+	if (ret == -1)
+		goto out_close;
+
+#ifdef UDEV_SETTLE_HACK
+	if (system("udevsettle") == -1)
+		return -1;
+#endif
+
+out_close:
+	close(fd);
+	return ret;
+}
+
+int ubi_node_type(libubi_t desc, const char *node)
+{
+	struct stat st;
+	struct ubi_info info;
+	int i, fd, major, minor;
+	struct libubi *lib = (struct libubi *)desc;
+	char file[strlen(lib->ubi_vol) + 100];
+
+	if (stat(node, &st))
+		return sys_errmsg("cannot get information about \"%s\"",
+				  node);
+
+	if (!S_ISCHR(st.st_mode)) {
+		errmsg("\"%s\" is not a character device", node);
+		errno = EINVAL;
+		return -1;
+	}
+
+	major = major(st.st_rdev);
+	minor = minor(st.st_rdev);
+
+	if (ubi_get_info((libubi_t *)lib, &info))
+		return -1;
+
+	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
+		int major1, minor1, ret;
+
+		ret = dev_get_major(lib, i, &major1, &minor1);
+		if (ret) {
+			if (errno == ENOENT)
+				continue;
+			if (!errno)
+				goto out_not_ubi;
+			return -1;
+		}
+
+		if (major1 == major)
+			break;
+	}
+
+	if (i > info.highest_dev_num)
+		goto out_not_ubi;
+
+	if (minor == 0)
+		return 1;
+
+	/* This is supposdely an UBI volume device node */
+	sprintf(file, lib->ubi_vol, i, minor - 1);
+	fd = open(file, O_RDONLY);
+	if (fd == -1) {
+		sys_errmsg("cannot open \"%s\"", node);
+		return -1;
+	}
+
+	return 2;
+
+out_not_ubi:
+	errmsg("\"%s\" has major:minor %d:%d, but this does not correspond to "
+	       "any UBI device or volume", node, major, minor);
+	errno = 0;
+	return -1;
+}
+
 int ubi_get_info(libubi_t desc, struct ubi_info *info)
 {
 	DIR *sysfs_ubi;
@@ -212,6 +817,16 @@ int ubi_get_info(libubi_t desc, struct ubi_info *info)
 
 	memset(info, '\0', sizeof(struct ubi_info));
 
+	if (read_major(lib->ctrl_dev, &info->ctrl_major, &info->ctrl_minor)) {
+		/*
+		 * Older UBI versions did not have control device, so we do not
+		 * panic here for compatibility reasons. May be few years later
+		 * we could return -1 here, but for now just set major:minor to
+		 * -1.
+		 */
+		info->ctrl_major = info->ctrl_minor = -1;
+	}
+
 	/*
 	 * We have to scan the UBI sysfs directory to identify how many UBI
 	 * devices are present.
@@ -221,11 +836,23 @@ int ubi_get_info(libubi_t desc, struct ubi_info *info)
 		return -1;
 
 	info->lowest_dev_num = INT_MAX;
-	while ((dirent = readdir(sysfs_ubi))) {
-		char *name = &dirent->d_name[0];
+	while (1) {
 		int dev_num, ret;
+		char tmp_buf[256];
+
+		errno = 0;
+		dirent = readdir(sysfs_ubi);
+		if (!dirent)
+			break;
+
+		if (strlen(dirent->d_name) > 256) {
+			errmsg("invalid entry in %s: \"%s\"",
+			       lib->sysfs_ubi, dirent->d_name);
+			goto out_close;
+		}
 
-		ret = sscanf(name, UBI_DEV_NAME_PATT, &dev_num);
+		ret = sscanf(dirent->d_name, UBI_DEV_NAME_PATT"%s",
+			     &dev_num, tmp_buf);
 		if (ret == 1) {
 			info->dev_count += 1;
 			if (dev_num > info->highest_dev_num)
@@ -235,15 +862,23 @@ int ubi_get_info(libubi_t desc, struct ubi_info *info)
 		}
 	}
 
+	if (!dirent && errno) {
+		sys_errmsg("readdir failed on \"%s\"", lib->sysfs_ubi);
+		goto out_close;
+	}
+
+	if (closedir(sysfs_ubi))
+		return sys_errmsg("closedir failed on \"%s\"", lib->sysfs_ubi);
+
 	if (info->lowest_dev_num == INT_MAX)
 		info->lowest_dev_num = 0;
 
-	if (read_int(lib->ubi_version, &info->version))
-		goto close;
+	if (read_positive_int(lib->ubi_version, &info->version))
+		return -1;
 
-	return closedir(sysfs_ubi);
+	return 0;
 
-close:
+out_close:
 	closedir(sysfs_ubi);
 	return -1;
 }
@@ -254,6 +889,8 @@ int ubi_mkvol(libubi_t desc, const char *node, struct ubi_mkvol_request *req)
 	struct ubi_mkvol_req r;
 	size_t n;
 
+	memset(&r, sizeof(struct ubi_mkvol_req), '\0');
+
 	desc = desc;
 	r.vol_id = req->vol_id;
 	r.alignment = req->alignment;
@@ -269,12 +906,20 @@ int ubi_mkvol(libubi_t desc, const char *node, struct ubi_mkvol_request *req)
 
 	fd = open(node, O_RDONLY);
 	if (fd == -1)
-		return -1;
+		return sys_errmsg("cannot open \"%s\"", node);
 
 	ret = ioctl(fd, UBI_IOCMKVOL, &r);
-	if (!ret)
-		req->vol_id = r.vol_id;
+	if (ret == -1)
+		goto out_close;
+
+	req->vol_id = r.vol_id;
 
+#ifdef UDEV_SETTLE_HACK
+	if (system("udevsettle") == -1)
+		return -1;
+#endif
+
+out_close:
 	close(fd);
 	return ret;
 }
@@ -286,9 +931,39 @@ int ubi_rmvol(libubi_t desc, const char *node, int vol_id)
 	desc = desc;
 	fd = open(node, O_RDONLY);
 	if (fd == -1)
-		return -1;
+		return sys_errmsg("cannot open \"%s\"", node);
 
 	ret = ioctl(fd, UBI_IOCRMVOL, &vol_id);
+	if (ret == -1)
+		goto out_close;
+
+#ifdef UDEV_SETTLE_HACK
+	if (system("udevsettle") == -1)
+		return -1;
+#endif
+
+out_close:
+	close(fd);
+	return ret;
+}
+
+int ubi_rnvols(libubi_t desc, const char *node, struct ubi_rnvol_req *rnvol)
+{
+	int fd, ret;
+
+	fd = open(node, O_RDONLY);
+	if (fd == -1)
+		return -1;
+	ret = ioctl(fd, UBI_IOCRNVOL, rnvol);
+	if (ret == -1)
+		goto out_close;
+
+#ifdef UDEV_SETTLE_HACK
+	if (system("udevsettle") == -1)
+		return -1;
+#endif
+
+out_close:
 	close(fd);
 	return ret;
 }
@@ -301,7 +976,7 @@ int ubi_rsvol(libubi_t desc, const char *node, int vol_id, long long bytes)
 	desc = desc;
 	fd = open(node, O_RDONLY);
 	if (fd == -1)
-		return -1;
+		return sys_errmsg("cannot open \"%s\"", node);
 
 	req.bytes = bytes;
 	req.vol_id = vol_id;
@@ -319,16 +994,19 @@ int ubi_update_start(libubi_t desc, int fd, long long bytes)
 	return 0;
 }
 
-int ubi_get_dev_info(libubi_t desc, const char *node, struct ubi_dev_info *info)
+int ubi_leb_change_start(libubi_t desc, int fd, int lnum, int bytes, int dtype)
 {
-	int dev_num;
-	struct libubi *lib = (struct libubi *)desc;
+	struct ubi_leb_change_req req;
 
-	dev_num = find_dev_num(lib, node);
-	if (dev_num == -1)
-		return -1;
+	desc = desc;
+	memset(&req, 0, sizeof(struct ubi_leb_change_req));
+	req.lnum = lnum;
+	req.bytes = bytes;
+	req.dtype = dtype;
 
-	return ubi_get_dev_info1(desc, dev_num, info);
+	if (ioctl(fd, UBI_IOCEBCH, &req))
+		return -1;
+	return 0;
 }
 
 int ubi_get_dev_info1(libubi_t desc, int dev_num, struct ubi_dev_info *info)
@@ -344,33 +1022,54 @@ int ubi_get_dev_info1(libubi_t desc, int dev_num, struct ubi_dev_info *info)
 	if (!sysfs_ubi)
 		return -1;
 
-	info->lowest_vol_num = INT_MAX;
-	while ((dirent = readdir(sysfs_ubi))) {
-		char *name = &dirent->d_name[0];
+	info->lowest_vol_id = INT_MAX;
+
+	while (1) {
 		int vol_id, ret, devno;
+		char tmp_buf[256];
+
+		errno = 0;
+		dirent = readdir(sysfs_ubi);
+		if (!dirent)
+			break;
+
+		if (strlen(dirent->d_name) > 256) {
+			errmsg("invalid entry in %s: \"%s\"",
+			       lib->sysfs_ubi, dirent->d_name);
+			goto out_close;
+		}
 
-		ret = sscanf(name, UBI_VOL_NAME_PATT, &devno, &vol_id);
+		ret = sscanf(dirent->d_name, UBI_VOL_NAME_PATT"%s", &devno, &vol_id, tmp_buf);
 		if (ret == 2 && devno == dev_num) {
 			info->vol_count += 1;
-			if (vol_id > info->highest_vol_num)
-				info->highest_vol_num = vol_id;
-			if (vol_id < info->lowest_vol_num)
-				info->lowest_vol_num = vol_id;
+			if (vol_id > info->highest_vol_id)
+				info->highest_vol_id = vol_id;
+			if (vol_id < info->lowest_vol_id)
+				info->lowest_vol_id = vol_id;
 		}
 	}
 
-	closedir(sysfs_ubi);
+	if (!dirent && errno) {
+		sys_errmsg("readdir failed on \"%s\"", lib->sysfs_ubi);
+		goto out_close;
+	}
 
-	if (info->lowest_vol_num == INT_MAX)
-		info->lowest_vol_num = 0;
+	if (closedir(sysfs_ubi))
+		return sys_errmsg("closedir failed on \"%s\"", lib->sysfs_ubi);
 
-	if (dev_read_int(lib->dev_avail_ebs, dev_num, &info->avail_ebs))
+	if (info->lowest_vol_id == INT_MAX)
+		info->lowest_vol_id = 0;
+
+	if (dev_get_major(lib, dev_num, &info->major, &info->minor))
+		return -1;
+
+	if (dev_read_int(lib->dev_avail_ebs, dev_num, &info->avail_lebs))
 		return -1;
-	if (dev_read_int(lib->dev_total_ebs, dev_num, &info->total_ebs))
+	if (dev_read_int(lib->dev_total_ebs, dev_num, &info->total_lebs))
 		return -1;
 	if (dev_read_int(lib->dev_bad_count, dev_num, &info->bad_count))
 		return -1;
-	if (dev_read_int(lib->dev_eb_size, dev_num, &info->eb_size))
+	if (dev_read_int(lib->dev_eb_size, dev_num, &info->leb_size))
 		return -1;
 	if (dev_read_int(lib->dev_bad_rsvd, dev_num, &info->bad_rsvd))
 		return -1;
@@ -381,26 +1080,25 @@ int ubi_get_dev_info1(libubi_t desc, int dev_num, struct ubi_dev_info *info)
 	if (dev_read_int(lib->dev_min_io_size, dev_num, &info->min_io_size))
 		return -1;
 
-	info->avail_bytes = info->avail_ebs * info->eb_size;
-	info->total_bytes = info->total_ebs * info->eb_size;
+	info->avail_bytes = info->avail_lebs * info->leb_size;
+	info->total_bytes = info->total_lebs * info->leb_size;
 
 	return 0;
+
+out_close:
+	closedir(sysfs_ubi);
+	return -1;
 }
 
-int ubi_get_vol_info(libubi_t desc, const char *node, struct ubi_vol_info *info)
+int ubi_get_dev_info(libubi_t desc, const char *node, struct ubi_dev_info *info)
 {
-	int vol_id, dev_num;
+	int dev_num;
 	struct libubi *lib = (struct libubi *)desc;
 
-	dev_num = find_dev_num_vol(lib, node);
-	if (dev_num == -1)
-		return -1;
-
-	vol_id = find_vol_num(lib, dev_num, node);
-	if (vol_id == -1)
+	if (dev_node2num(lib, node, &dev_num))
 		return -1;
 
-	return ubi_get_vol_info1(desc, dev_num, vol_id, info);
+	return ubi_get_dev_info1(desc, dev_num, info);
 }
 
 int ubi_get_vol_info1(libubi_t desc, int dev_num, int vol_id,
@@ -414,16 +1112,21 @@ int ubi_get_vol_info1(libubi_t desc, int dev_num, int vol_id,
 	info->dev_num = dev_num;
 	info->vol_id = vol_id;
 
-	ret = vol_read_data(lib->vol_type, dev_num, vol_id, &buf[0], 50);
+	if (dev_get_major(lib, dev_num, &info->dev_major, &info->dev_minor))
+		return -1;
+	if (vol_get_major(lib, dev_num, vol_id, &info->major, &info->minor))
+		return -1;
+
+	ret = vol_read_data(lib->vol_type, dev_num, vol_id, buf, 50);
 	if (ret < 0)
 		return -1;
 
-	if (strncmp(&buf[0], "static\n", ret) == 0)
+	if (strncmp(buf, "static\n", ret) == 0)
 		info->type = UBI_STATIC_VOLUME;
-	else if (strncmp(&buf[0], "dynamic\n", ret) == 0)
+	else if (strncmp(buf, "dynamic\n", ret) == 0)
 		info->type = UBI_DYNAMIC_VOLUME;
 	else {
-		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
+		errmsg("bad value at \"%s\"", buf);
 		errno = EINVAL;
 		return -1;
 	}
@@ -436,17 +1139,17 @@ int ubi_get_vol_info1(libubi_t desc, int dev_num, int vol_id,
 			  &info->data_bytes);
 	if (ret)
 		return -1;
-	ret = vol_read_int(lib->vol_rsvd_ebs, dev_num, vol_id, &info->rsvd_ebs);
+	ret = vol_read_int(lib->vol_rsvd_ebs, dev_num, vol_id, &info->rsvd_lebs);
 	if (ret)
 		return -1;
-	ret = vol_read_int(lib->vol_eb_size, dev_num, vol_id, &info->eb_size);
+	ret = vol_read_int(lib->vol_eb_size, dev_num, vol_id, &info->leb_size);
 	if (ret)
 		return -1;
 	ret = vol_read_int(lib->vol_corrupted, dev_num, vol_id,
 			   &info->corrupted);
 	if (ret)
 		return -1;
-	info->rsvd_bytes = info->eb_size * info->rsvd_ebs;
+	info->rsvd_bytes = info->leb_size * info->rsvd_lebs;
 
 	ret = vol_read_data(lib->vol_name, dev_num, vol_id, &info->name,
 			    UBI_VOL_NAME_MAX + 2);
@@ -457,457 +1160,45 @@ int ubi_get_vol_info1(libubi_t desc, int dev_num, int vol_id,
 	return 0;
 }
 
-/**
- * read_int - read an 'int' value from a file.
- *
- * @file   the file to read from
- * @value  the result is stored here
- *
- * This function returns %0 in case of success and %-1 in case of failure.
- */
-static int read_int(const char *file, int *value)
-{
-	int fd, rd;
-	char buf[50];
-
-	fd = open(file, O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	rd = read(fd, &buf[0], 50);
-	if (rd == -1)
-		goto error;
-
-	if (sscanf(&buf[0], "%d\n", value) != 1) {
-		/* This must be a UBI bug */
-		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
-		errno = EINVAL;
-		goto error;
-	}
-
-	close(fd);
-	return 0;
-
-error:
-	close(fd);
-	return -1;
-}
-
-/**
- * dev_read_int - read an 'int' value from an UBI device's sysfs file.
- *
- * @patt     the file pattern to read from
- * @dev_num  UBI device number
- * @value    the result is stored here
- *
- * This function returns %0 in case of success and %-1 in case of failure.
- */
-static int dev_read_int(const char *patt, int dev_num, int *value)
-{
-	int fd, rd;
-	char buf[50];
-	char file[strlen(patt) + 50];
-
-	sprintf(&file[0], patt, dev_num);
-	fd = open(&file[0], O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	rd = read(fd, &buf[0], 50);
-	if (rd == -1)
-		goto error;
-
-	if (sscanf(&buf[0], "%d\n", value) != 1) {
-		/* This must be a UBI bug */
-		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
-		errno = EINVAL;
-		goto error;
-	}
-
-	close(fd);
-	return 0;
-
-error:
-	close(fd);
-	return -1;
-}
-
-/**
- * dev_read_ll - read a 'long long' value from an UBI device's sysfs file.
- *
- * @patt     the file pattern to read from
- * @dev_num  UBI device number
- * @value    the result is stored here
- *
- * This function returns %0 in case of success and %-1 in case of failure.
- */
-static int dev_read_ll(const char *patt, int dev_num, long long *value)
-{
-	int fd, rd;
-	char buf[50];
-	char file[strlen(patt) + 50];
-
-	sprintf(&file[0], patt, dev_num);
-	fd = open(&file[0], O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	rd = read(fd, &buf[0], 50);
-	if (rd == -1)
-		goto error;
-
-	if (sscanf(&buf[0], "%lld\n", value) != 1) {
-		/* This must be a UBI bug */
-		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
-		errno = EINVAL;
-		goto error;
-	}
-
-	close(fd);
-	return 0;
-
-error:
-	close(fd);
-	return -1;
-}
-
-/**
- * dev_read_data - read data from an UBI device's sysfs file.
- *
- * @patt     the file pattern to read from
- * @dev_num  UBI device number
- * @buf      buffer to read data to
- * @buf_len  buffer length
- *
- * This function returns number of read bytes in case of success and %-1 in
- * case of failure.
- */
-static int dev_read_data(const char *patt, int dev_num, void *buf, int buf_len)
-{
-	int fd, rd;
-	char file[strlen(patt) + 50];
-
-	sprintf(&file[0], patt, dev_num);
-	fd = open(&file[0], O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	rd = read(fd, buf, buf_len);
-	if (rd == -1) {
-		close(fd);
-		return -1;
-	}
-
-	close(fd);
-	return rd;
-}
-
-/**
- * vol_read_int - read an 'int' value from an UBI volume's sysfs file.
- *
- * @patt     the file pattern to read from
- * @dev_num  UBI device number
- * @vol_id   volume identifier
- * @value    the result is stored here
- *
- * This function returns %0 in case of success and %-1 in case of failure.
- */
-static int vol_read_int(const char *patt, int dev_num, int vol_id, int *value)
-{
-	int fd, rd;
-	char buf[50];
-	char file[strlen(patt) + 100];
-
-	sprintf(&file[0], patt, dev_num, vol_id);
-	fd = open(&file[0], O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	rd = read(fd, &buf[0], 50);
-	if (rd == -1)
-		goto error;
-
-	if (sscanf(&buf[0], "%d\n", value) != 1) {
-		/* This must be a UBI bug */
-		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
-		errno = EINVAL;
-		goto error;
-	}
-
-	close(fd);
-	return 0;
-
-error:
-	close(fd);
-	return -1;
-}
-
-/**
- * vol_read_ll - read a 'long long' value from an UBI volume's sysfs file.
- *
- * @patt     the file pattern to read from
- * @dev_num  UBI device number
- * @vol_id   volume identifier
- * @value    the result is stored here
- *
- * This function returns %0 in case of success and %-1 in case of failure.
- */
-static int vol_read_ll(const char *patt, int dev_num, int vol_id,
-		       long long *value)
-{
-	int fd, rd;
-	char buf[50];
-	char file[strlen(patt) + 100];
-
-	sprintf(&file[0], patt, dev_num, vol_id);
-	fd = open(&file[0], O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	rd = read(fd, &buf[0], 50);
-	if (rd == -1)
-		goto error;
-
-	if (sscanf(&buf[0], "%lld\n", value) != 1) {
-		/* This must be a UBI bug */
-		fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
-		errno = EINVAL;
-		goto error;
-	}
-
-	close(fd);
-	return 0;
-
-error:
-	close(fd);
-	return -1;
-}
-
-/**
- * vol_read_data - read data from an UBI volume's sysfs file.
- *
- * @patt     the file pattern to read from
- * @dev_num  UBI device number
- * @vol_id   volume identifier
- * @buf      buffer to read to
- * @buf_len  buffer length
- *
- * This function returns number of read bytes in case of success and %-1 in
- * case of failure.
- */
-static int vol_read_data(const char *patt, int dev_num, int vol_id, void *buf,
-			 int buf_len)
-{
-	int fd, rd;
-	char file[strlen(patt) + 100];
-
-	sprintf(&file[0], patt, dev_num, vol_id);
-	fd = open(&file[0], O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	rd = read(fd, buf, buf_len);
-	if (rd == -1) {
-		close(fd);
-		return -1;
-	}
-
-	close(fd);
-	return rd;
-}
-
-/**
- * mkpath - compose full path from 2 given components.
- *
- * @path  first component
- * @name  second component
- *
- * This function returns the resulting path in case of success and %NULL in
- * case of failure.
- */
-static char *mkpath(const char *path, const char *name)
-{
-	char *n;
-	int len1 = strlen(path);
-	int len2 = strlen(name);
-
-	n = malloc(len1 + len2 + 2);
-	if (!n)
-		return NULL;
-
-	memcpy(n, path, len1);
-	if (n[len1 - 1] != '/')
-		n[len1++] = '/';
-
-	memcpy(n + len1, name, len2 + 1);
-	return n;
-}
-
-/**
- * find_dev_num - find UBI device number by its character device node.
- *
- * @lib   UBI library descriptor
- * @node  UBI character device node name
- *
- * This function returns positive UBI device number in case of success and %-1
- * in case of failure.
- */
-static int find_dev_num(struct libubi *lib, const char *node)
-{
-	struct stat st;
-	struct ubi_info info;
-	int i, major, minor;
-
-	if (stat(node, &st))
-		return -1;
-
-	if (!S_ISCHR(st.st_mode)) {
-		errno = EINVAL;
-		return -1;
-	}
-
-	major = major(st.st_rdev);
-	minor = minor(st.st_rdev);
-
-	if (minor != 0) {
-		errno = -EINVAL;
-		return -1;
-	}
-
-	if (ubi_get_info((libubi_t *)lib, &info))
-		return -1;
-
-	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
-		int major1, minor1, ret;
-		char buf[50];
-
-		ret = dev_read_data(lib->dev_dev, i, &buf[0], 50);
-		if (ret < 0)
-			return -1;
-
-		ret = sscanf(&buf[0], "%d:%d\n", &major1, &minor1);
-		if (ret != 2) {
-			fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
-			errno = EINVAL;
-			return -1;
-		}
-
-		if (minor1 == minor && major1 == major)
-			return i;
-	}
-
-	errno = ENOENT;
-	return -1;
-}
-
-/**
- * find_dev_num_vol - find UBI device number by volume character device node.
- *
- * @lib   UBI library descriptor
- * @node  UBI character device node name
- *
- * This function returns positive UBI device number in case of success and %-1
- * in case of failure.
- */
-static int find_dev_num_vol(struct libubi *lib, const char *node)
+int ubi_get_vol_info(libubi_t desc, const char *node, struct ubi_vol_info *info)
 {
-	struct stat st;
-	struct ubi_info info;
-	int i, major;
-
-	if (stat(node, &st))
-		return -1;
-
-	if (!S_ISCHR(st.st_mode)) {
-		errno = EINVAL;
-		return -1;
-	}
-
-	major = major(st.st_rdev);
-
-	if (minor(st.st_rdev) == 0) {
-		errno = -EINVAL;
-		return -1;
-	}
+	int vol_id, dev_num;
+	struct libubi *lib = (struct libubi *)desc;
 
-	if (ubi_get_info((libubi_t *)lib, &info))
+	if (vol_node2nums(lib, node, &dev_num, &vol_id))
 		return -1;
 
-	for (i = info.lowest_dev_num; i <= info.highest_dev_num; i++) {
-		int major1, minor1, ret;
-		char buf[50];
-
-		ret = dev_read_data(lib->dev_dev, i, &buf[0], 50);
-		if (ret < 0)
-			return -1;
-
-		ret = sscanf(&buf[0], "%d:%d\n", &major1, &minor1);
-		if (ret != 2) {
-			fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
-			errno = EINVAL;
-			return -1;
-		}
-
-		if (major1 == major)
-			return i;
-	}
-
-	errno = ENOENT;
-	return -1;
+	return ubi_get_vol_info1(desc, dev_num, vol_id, info);
 }
 
-/**
- * find_vol_num - find UBI volume number by its character device node.
- *
- * @lib      UBI library descriptor
- * @dev_num  UBI device number
- * @node     UBI volume character device node name
- *
- * This function returns positive UBI volume number in case of success and %-1
- * in case of failure.
- */
-static int find_vol_num(struct libubi *lib, int dev_num, const char *node)
+int ubi_get_vol_info1_nm(libubi_t desc, int dev_num, const char *name,
+			 struct ubi_vol_info *info)
 {
-	struct stat st;
-	struct ubi_dev_info info;
-	int i, major, minor;
-
-	if (stat(node, &st))
-		return -1;
+	int i, err;
+	unsigned int nlen = strlen(name);
+	struct ubi_dev_info dev_info;
 
-	if (!S_ISCHR(st.st_mode)) {
+	if (nlen == 0) {
+		errmsg("bad \"name\" input parameter");
 		errno = EINVAL;
 		return -1;
 	}
 
-	major = major(st.st_rdev);
-	minor = minor(st.st_rdev);
-
-	if (minor == 0) {
-		errno = -EINVAL;
-		return -1;
-	}
-
-	if (ubi_get_dev_info1((libubi_t *)lib, dev_num, &info))
-		return -1;
-
-	for (i = info.lowest_vol_num; i <= info.highest_vol_num; i++) {
-		int major1, minor1, ret;
-		char buf[50];
-
-		ret = vol_read_data(lib->vol_dev,  dev_num, i, &buf[0], 50);
-		if (ret < 0)
-			return -1;
+	err = ubi_get_dev_info1(desc, dev_num, &dev_info);
+	if (err)
+		return err;
 
-		ret = sscanf(&buf[0], "%d:%d\n", &major1, &minor1);
-		if (ret != 2) {
-			fprintf(stderr, "LIBUBI: bad value at sysfs file\n");
-			errno = EINVAL;
+	for (i = dev_info.lowest_vol_id;
+	     i <= dev_info.highest_vol_id; i++) {
+		err = ubi_get_vol_info1(desc, dev_num, i, info);
+		if (err == -1) {
+			if (errno == ENOENT)
+				continue;
 			return -1;
 		}
 
-		if (minor1 == minor && major1 == major)
-			return i;
+		if (nlen == strlen(info->name) && !strcmp(name, info->name))
+			return 0;
 	}
 
 	errno = ENOENT;
diff --git a/ubi-utils/src/libubi_int.h b/ubi-utils/src/libubi_int.h
index e68b791..2e664b8 100644
--- a/ubi-utils/src/libubi_int.h
+++ b/ubi-utils/src/libubi_int.h
@@ -15,7 +15,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
- * Author: Artem B. Bityutskiy
+ * Author: Artem Bityutskiy
  *
  * UBI (Unsorted Block Images) library.
  */
@@ -23,20 +23,31 @@
 #ifndef __LIBUBI_INT_H__
 #define __LIBUBI_INT_H__
 
+#include <string.h>
+#include <errno.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /*
- * UBI heavily makes use of the sysfs file system to interact with users-pace.
  * The below are pre-define UBI file and directory names.
+ *
+ * Note, older kernels put 'ubiX_Y' directories straight to '/sys/class/ubi/'.
+ * New kernels puts 'ubiX_Y' directories to '/sys/class/ubi/ubiX/', which is
+ * saner. And for compatibility reasons it also puts symlinks to 'ubiX_Y'
+ * directories to '/sys/class/ubi/'. For now libubi assumes old layout.
  */
 
 #define SYSFS_UBI         "class/ubi"
-#define UBI_DEV_NAME_PATT "ubi%d"
+#define SYSFS_CTRL        "class/misc/ubi_ctrl/"
+
+#define CTRL_DEV          "dev"
+
 #define UBI_VER           "version"
+#define UBI_DEV_NAME_PATT "ubi%d"
+
 #define DEV_DEV           "dev"
-#define UBI_VOL_NAME_PATT "ubi%d_%d"
 #define DEV_AVAIL_EBS     "avail_eraseblocks"
 #define DEV_TOTAL_EBS     "total_eraseblocks"
 #define DEV_BAD_COUNT     "bad_peb_count"
@@ -45,6 +56,9 @@ extern "C" {
 #define DEV_MAX_RSVD      "reserved_for_bad"
 #define DEV_MAX_VOLS      "max_vol_count"
 #define DEV_MIN_IO_SIZE   "min_io_size"
+#define DEV_MTD_NUM       "mtd_num"
+
+#define UBI_VOL_NAME_PATT "ubi%d_%d"
 #define VOL_TYPE          "type"
 #define VOL_DEV           "dev"
 #define VOL_ALIGNMENT     "alignment"
@@ -56,34 +70,37 @@ extern "C" {
 
 /**
  * libubi - UBI library description data structure.
- *
- * @sysfs            sysfs file system path
- * @sysfs_ubi        UBI directory in sysfs
- * @ubi_dev          UBI device sysfs directory pattern
- * @ubi_version      UBI version file sysfs path
- * @dev_dev          UBI device's major/minor numbers file pattern
- * @dev_avail_ebs    count of available eraseblocks sysfs path pattern
- * @dev_total_ebs    total eraseblocks count sysfs path pattern
- * @dev_bad_count    count of bad eraseblocks sysfs path pattern
- * @dev_eb_size      size of UBI device's eraseblocks sysfs path pattern
- * @dev_max_ec       maximum erase counter sysfs path pattern
- * @dev_bad_rsvd     count of physical eraseblock reserved for bad eraseblocks
- *                   handling
- * @dev_max_vols     maximum volumes number count sysfs path pattern
- * @dev_min_io_size  minimum I/O unit size sysfs path pattern
- * @ubi_vol          UBI volume sysfs directory pattern
- * @vol_type         volume type sysfs path pattern
- * @vol_dev          volume's major/minor numbers file pattern
- * @vol_alignment    volume alignment sysfs path pattern
- * @vol_data_bytes   volume data size sysfs path pattern
- * @vol_rsvd_ebs     volume reserved size sysfs path pattern
- * @vol_eb_size      volume eraseblock size sysfs path pattern
- * @vol_corrupted    volume corruption flag sysfs path pattern
- * @vol_name         volume name sysfs path pattern
+ * @sysfs: sysfs file system path
+ * @sysfs_ctrl: UBI control device directory in sysfs
+ * @ctrl_dev: UBI control device major/minor numbers sysfs file
+ * @sysfs_ubi: UBI directory in sysfs
+ * @ubi_dev: UBI device sysfs directory pattern
+ * @ubi_version: UBI version file sysfs path
+ * @dev_dev: UBI device major/minor numbers file pattern
+ * @dev_avail_ebs: count of available eraseblocks sysfs path pattern
+ * @dev_total_ebs: total eraseblocks count sysfs path pattern
+ * @dev_bad_count: count of bad eraseblocks sysfs path pattern
+ * @dev_eb_size: size of UBI device's eraseblocks sysfs path pattern
+ * @dev_max_ec: maximum erase counter sysfs path pattern
+ * @dev_bad_rsvd: count of physical eraseblock reserved for bad eraseblocks
+ *                handling
+ * @dev_max_vols: maximum volumes number count sysfs path pattern
+ * @dev_min_io_size: minimum I/O unit size sysfs path pattern
+ * @ubi_vol: UBI volume sysfs directory pattern
+ * @vol_type: volume type sysfs path pattern
+ * @vol_dev: volume major/minor numbers file pattern
+ * @vol_alignment: volume alignment sysfs path pattern
+ * @vol_data_bytes: volume data size sysfs path pattern
+ * @vol_rsvd_ebs: volume reserved size sysfs path pattern
+ * @vol_eb_size: volume eraseblock size sysfs path pattern
+ * @vol_corrupted: volume corruption flag sysfs path pattern
+ * @vol_name: volume name sysfs path pattern
  */
 struct libubi
 {
 	char *sysfs;
+	char *sysfs_ctrl;
+	char *ctrl_dev;
 	char *sysfs_ubi;
 	char *ubi_dev;
 	char *ubi_version;
@@ -96,6 +113,7 @@ struct libubi
 	char *dev_bad_rsvd;
 	char *dev_max_vols;
 	char *dev_min_io_size;
+	char *dev_mtd_num;
 	char *ubi_vol;
 	char *vol_type;
 	char *vol_dev;
@@ -108,20 +126,6 @@ struct libubi
 	char *vol_max_count;
 };
 
-static int read_int(const char *file, int *value);
-static int dev_read_int(const char *patt, int dev_num, int *value);
-static int dev_read_ll(const char *patt, int dev_num, long long *value);
-static int dev_read_data(const char *patt, int dev_num, void *buf, int buf_len);
-static int vol_read_int(const char *patt, int dev_num, int vol_id, int *value);
-static int vol_read_ll(const char *patt, int dev_num, int vol_id,
-		       long long *value);
-static int vol_read_data(const char *patt, int dev_num, int vol_id, void *buf,
-			 int buf_len);
-static char *mkpath(const char *path, const char *name);
-static int find_dev_num(struct libubi *lib, const char *node);
-static int find_dev_num_vol(struct libubi *lib, const char *node);
-static int find_vol_num(struct libubi *lib, int dev_num, const char *node);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/ubi-utils/src/libubigen.c b/ubi-utils/src/libubigen.c
index 1793009..91bb274 100644
--- a/ubi-utils/src/libubigen.c
+++ b/ubi-utils/src/libubigen.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) International Business Machines Corp., 2006
+ * Copyright (C) 2008 Nokia Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -14,474 +15,316 @@
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * Generating UBI images.
  *
- * Author: Oliver Lohmann
- *
- * Add UBI headers to binary data.
+ * Authors: Oliver Lohmann
+ *          Artem Bityutskiy
  */
 
 #include <stdlib.h>
 #include <stdint.h>
-#include <stdio.h>
-#include <errno.h>
+#include <unistd.h>
 #include <string.h>
+
 #include <mtd/ubi-media.h>
 #include <mtd_swab.h>
-
-#include "config.h"
-#include "ubigen.h"
+#include <libubigen.h>
 #include "crc32.h"
-
-#define UBI_NAME_SIZE		256
-#define DEFAULT_VID_OFFSET	((DEFAULT_PAGESIZE) - (UBI_VID_HDR_SIZE))
-#define MIN(a,b)		((a) < (b) ? (a) : (b))
-
-static uint32_t crc32_table[256];
-
-struct ubi_info {
-	struct ubi_vid_hdr* v;	/* Volume ID header */
-	struct ubi_ec_hdr* ec;	/* Erase count header */
-
-	FILE* fp_in;		/* Input Stream */
-	FILE* fp_out;		/* Output stream */
-
-	size_t eb_size;		/* Physical EB size in bytes */
-	size_t leb_size;	/* Size of a logical EB in a physical EB */
-	size_t leb_total;	/* Total input size in logical EB */
-	size_t alignment;	/* Block alignment */
-	size_t data_pad;	/* Size of padding in each physical EB */
-
-	size_t bytes_total;	/* Total input size in bytes */
-	size_t bytes_read;	/* Nymber of read bytes (total) */
-
-	uint32_t blks_written;	/* Number of written logical EB */
-
-	uint8_t* buf;		/* Allocated buffer */
-	uint8_t* ptr_ec_hdr;	/* Pointer to EC hdr in buf */
-	uint8_t* ptr_vid_hdr;	/* Pointer to VID hdr in buf */
-	uint8_t* ptr_data;	/* Pointer to data region in buf */
-};
-
-
-static uint32_t
-byte_to_blk(uint64_t byte, uint32_t eb_size)
-{
-	return (byte % eb_size) == 0
-		? (byte / eb_size)
-		: (byte / eb_size) + 1;
-}
-
-static int
-validate_ubi_info(ubi_info_t u)
-{
-	if ((u->v->vol_type != UBI_VID_DYNAMIC) &&
-	    (u->v->vol_type != UBI_VID_STATIC)) {
-		return EUBIGEN_INVALID_TYPE;
-	}
-
-	if (be32_to_cpu(u->ec->vid_hdr_offset) < UBI_VID_HDR_SIZE) {
-		return EUBIGEN_INVALID_HDR_OFFSET;
-	}
-
-	return 0;
-}
-
-static int
-skip_blks(ubi_info_t u, uint32_t blks)
-{
-	uint32_t i;
-	size_t read = 0, to_read = 0;
-
-	/* Step to a maximum of leb_total - 1 to keep the
-	   restrictions. */
-	for (i = 0; i < MIN(blks, u->leb_total-1); i++) {
-		/* Read in data */
-		to_read = MIN(u->leb_size,
-			      (u->bytes_total - u->bytes_read));
-		read = fread(u->ptr_data, 1, to_read, u->fp_in);
-		if (read != to_read) {
-			return -EIO;
-		}
-		u->bytes_read += read;
-		u->blks_written++;
-	}
-
-	return 0;
-}
-
-static void
-clear_buf(ubi_info_t u)
-{
-	memset(u->buf, 0xff, u->eb_size);
-}
-
-static void
-write_ec_hdr(ubi_info_t u)
-{
-	memcpy(u->ptr_ec_hdr, u->ec, UBI_EC_HDR_SIZE);
-}
-
-static int
-fill_data_buffer_from_file(ubi_info_t u, size_t* read)
-{
-	size_t to_read = 0;
-
-	if (u-> fp_in == NULL)
-		return -EIO;
-
-	to_read = MIN(u->leb_size, (u->bytes_total - u->bytes_read));
-	*read = fread(u->ptr_data, 1, to_read, u->fp_in);
-	if (*read != to_read) {
-		return -EIO;
-	}
-	return 0;
-}
-
-static void
-add_static_info(ubi_info_t u, size_t data_size, ubigen_action_t action)
-{
-	uint32_t crc = clc_crc32(crc32_table, UBI_CRC32_INIT,
-				 u->ptr_data, data_size);
-
-	u->v->data_size = cpu_to_be32(data_size);
-	u->v->data_crc = cpu_to_be32(crc);
-
-	if (action & BROKEN_DATA_CRC) {
-		u->v->data_crc =
-			cpu_to_be32(be32_to_cpu(u->v->data_crc) + 1);
-	}
-	if (action & BROKEN_DATA_SIZE) {
-		u->v->data_size =
-			cpu_to_be32(be32_to_cpu(u->v->data_size) + 1);
-	}
-}
-
-static void
-write_vid_hdr(ubi_info_t u, ubigen_action_t action)
+#include "common.h"
+
+#define PROGRAM_NAME "libubigen"
+
+/**
+ * ubigen_info_init - initialize libubigen.
+ * @ui: libubigen information
+ * @peb_size: flash physical eraseblock size
+ * @min_io_size: flash minimum input/output unit size
+ * @subpage_size: flash sub-page, if present (has to be equivalent to
+ *                @min_io_size if does not exist)
+ * @vid_hdr_offs: offset of the VID header
+ * @ubi_ver: UBI version
+ */
+void ubigen_info_init(struct ubigen_info *ui, int peb_size, int min_io_size,
+		      int subpage_size, int vid_hdr_offs, int ubi_ver)
 {
-	uint32_t crc = clc_crc32(crc32_table, UBI_CRC32_INIT,
-				 u->v, UBI_VID_HDR_SIZE_CRC);
-	/* Write VID header */
-	u->v->hdr_crc = cpu_to_be32(crc);
-	if (action & BROKEN_HDR_CRC) {
-		u->v->hdr_crc = cpu_to_be32(be32_to_cpu(u->v->hdr_crc) + 1);
+	if (!vid_hdr_offs) {
+		vid_hdr_offs = UBI_EC_HDR_SIZE + subpage_size - 1;
+		vid_hdr_offs /= subpage_size;
+		vid_hdr_offs *= subpage_size;
 	}
-	memcpy(u->ptr_vid_hdr, u->v, UBI_VID_HDR_SIZE);
-}
 
-static int
-write_to_output_stream(ubi_info_t u)
-{
-	size_t written;
-
-	written = fwrite(u->buf, 1, u->eb_size, u->fp_out);
-	if (written != u->eb_size) {
-		return -EIO;
-	}
-	return 0;
+	ui->peb_size = peb_size;
+	ui->min_io_size = min_io_size;
+	ui->vid_hdr_offs = vid_hdr_offs;
+	ui->data_offs = vid_hdr_offs + UBI_VID_HDR_SIZE + min_io_size - 1;
+	ui->data_offs /= min_io_size;
+	ui->data_offs *= min_io_size;
+	ui->leb_size = peb_size - ui->data_offs;
+	ui->ubi_ver = ubi_ver;
+
+	ui->max_volumes = ui->leb_size / UBI_VTBL_RECORD_SIZE;
+	if (ui->max_volumes > UBI_MAX_VOLUMES)
+		ui->max_volumes = UBI_MAX_VOLUMES;
+	ui->vtbl_size = ui->max_volumes * UBI_VTBL_RECORD_SIZE;
 }
 
-int
-ubigen_write_leb(ubi_info_t u, ubigen_action_t action)
+/**
+ * ubigen_create_empty_vtbl - creates empty volume table.
+ *
+ * This function creates an empty volume table and returns a pointer to it in
+ * case of success and %NULL in case of failure. The returned object has to be
+ * freed with 'free()' call.
+ */
+struct ubi_vtbl_record *ubigen_create_empty_vtbl(const struct ubigen_info *ui)
 {
-	int rc = 0;
-	size_t read = 0;
-
-	clear_buf(u);
-	write_ec_hdr(u);
+	struct ubi_vtbl_record *vtbl;
+	int i;
 
-	rc = fill_data_buffer_from_file(u, &read);
-	if (rc != 0)
-		return rc;
-
-	if (u->v->vol_type == UBI_VID_STATIC)  {
-		add_static_info(u, read, action);
+	vtbl = calloc(1, ui->vtbl_size);
+	if (!vtbl) {
+		sys_errmsg("cannot allocate %d bytes of memory", ui->vtbl_size);
+		return NULL;
 	}
 
-	u->v->lnum = cpu_to_be32(u->blks_written);
-
-	if (action & MARK_AS_UPDATE) {
-		u->v->copy_flag = (u->v->copy_flag)++;
+	for (i = 0; i < ui->max_volumes; i++) {
+		uint32_t crc = crc32(UBI_CRC32_INIT, &vtbl[i],
+				     UBI_VTBL_RECORD_SIZE_CRC);
+		vtbl[i].crc = cpu_to_be32(crc);
 	}
 
-	write_vid_hdr(u, action);
-	rc = write_to_output_stream(u);
-	if (rc != 0)
-		return rc;
-
-	/* Update current handle */
-	u->bytes_read += read;
-	u->blks_written++;
-	return 0;
+	return vtbl;
 }
 
-int
-ubigen_write_complete(ubi_info_t u)
+/**
+ * ubigen_add_volume - add a volume to the volume table.
+ * @ui: libubigen information
+ * @vi: volume information
+ * @vtbl: volume table to add to
+ *
+ * This function adds volume described by input parameters to the volume table
+ * @vtbl.
+ */
+int ubigen_add_volume(const struct ubigen_info *ui,
+		      const struct ubigen_vol_info *vi,
+		      struct ubi_vtbl_record *vtbl)
 {
-	size_t i;
-	int rc = 0;
-
-	for (i = 0; i < u->leb_total; i++) {
-		rc = ubigen_write_leb(u,  NO_ERROR);
-		if (rc != 0)
-			return rc;
-	}
-
+	struct ubi_vtbl_record *vtbl_rec = &vtbl[vi->id];
+	uint32_t tmp;
+
+	if (vi->id >= ui->max_volumes)
+		return errmsg("too high volume id %d, max. volumes is %d",
+			      vi->id, ui->max_volumes);
+
+	if (vi->alignment >= ui->leb_size)
+		return errmsg("too large alignment %d, max is %d (LEB size)",
+			      vi->alignment, ui->leb_size);
+
+	memset(vtbl_rec, '\0', sizeof(struct ubi_vtbl_record));
+	tmp = (vi->bytes + ui->leb_size - 1) / ui->leb_size;
+	vtbl_rec->reserved_pebs = cpu_to_be32(tmp);
+	vtbl_rec->alignment = cpu_to_be32(vi->alignment);
+	vtbl_rec->vol_type = vi->type;
+	tmp = ui->leb_size % vi->alignment;
+	vtbl_rec->data_pad = cpu_to_be32(tmp);
+	vtbl_rec->flags = vi->flags;
+
+	memcpy(vtbl_rec->name, vi->name, vi->name_len);
+	vtbl_rec->name[vi->name_len] = '\0';
+	vtbl_rec->name_len = cpu_to_be16(vi->name_len);
+
+	tmp = crc32(UBI_CRC32_INIT, vtbl_rec, UBI_VTBL_RECORD_SIZE_CRC);
+	vtbl_rec->crc =	 cpu_to_be32(tmp);
 	return 0;
 }
 
-int
-ubigen_write_broken_update(ubi_info_t u, uint32_t blk)
+/**
+ * ubigen_init_ec_hdr - initialize EC header.
+ * @ui: libubigen information
+ * @hdr: the EC header to initialize
+ * @ec: erase counter value
+ */
+void ubigen_init_ec_hdr(const struct ubigen_info *ui,
+		        struct ubi_ec_hdr *hdr, long long ec)
 {
-	int rc = 0;
+	uint32_t crc;
 
-	rc = skip_blks(u, blk);
-	if (rc != 0)
-		return rc;
+	memset(hdr, '\0', sizeof(struct ubi_ec_hdr));
 
-	rc = ubigen_write_leb(u, MARK_AS_UPDATE | BROKEN_DATA_CRC);
-	if (rc != 0)
-		return rc;
+	hdr->magic = cpu_to_be32(UBI_EC_HDR_MAGIC);
+	hdr->version = ui->ubi_ver;
+	hdr->ec = cpu_to_be64(ec);
+	hdr->vid_hdr_offset = cpu_to_be32(ui->vid_hdr_offs);
 
+	hdr->data_offset = cpu_to_be32(ui->data_offs);
 
-	return 0;
+	crc = crc32(UBI_CRC32_INIT, hdr, UBI_EC_HDR_SIZE_CRC);
+	hdr->hdr_crc = cpu_to_be32(crc);
 }
 
-void
-dump_info(ubi_info_t u ubi_unused)
+/**
+ * init_vid_hdr - initialize VID header.
+ * @ui: libubigen information
+ * @vi: volume information
+ * @hdr: the VID header to initialize
+ * @lnum: logical eraseblock number
+ * @data: the contents of the LEB (static volumes only)
+ * @data_size: amount of data in this LEB (static volumes only)
+ *
+ * Note, @used_ebs, @data and @data_size are ignored in case of dynamic
+ * volumes.
+ */
+static void init_vid_hdr(const struct ubigen_info *ui,
+			 const struct ubigen_vol_info *vi,
+			 struct ubi_vid_hdr *hdr, int lnum,
+			 const void *data, int data_size)
 {
-#ifdef DEBUG
-	int err = 0;
-	if (!u) {
-		fprintf(stderr, "<empty>");
-		return;
-	}
-	if (!u->ec) {
-		fprintf(stderr, "<ec-empty>");
-		err = 1;
-	}
-	if (!u->v) {
-		fprintf(stderr, "<v-empty>");
-		err = 1;
-	}
-	if (err) return;
-
-	fprintf(stderr, "ubi volume\n");
-	fprintf(stderr, "version      :	  %8d\n", u->v->version);
-	fprintf(stderr, "vol_id	      :	  %8d\n", be32_to_cpu(u->v->vol_id));
-	fprintf(stderr, "vol_type     :	  %8s\n",
-		u->v->vol_type == UBI_VID_STATIC ?
-		"static" : "dynamic");
-	fprintf(stderr, "used_ebs     :	  %8d\n",
-		be32_to_cpu(u->v->used_ebs));
-	fprintf(stderr, "eb_size      : 0x%08x\n", u->eb_size);
-	fprintf(stderr, "leb_size     : 0x%08x\n", u->leb_size);
-	fprintf(stderr, "data_pad     : 0x%08x\n",
-		be32_to_cpu(u->v->data_pad));
-	fprintf(stderr, "leb_total    :	  %8d\n", u->leb_total);
-	fprintf(stderr, "header offs  : 0x%08x\n",
-		be32_to_cpu(u->ec->vid_hdr_offset));
-	fprintf(stderr, "bytes_total  :	  %8d\n", u->bytes_total);
-	fprintf(stderr, "  +  in MiB  : %8.2f M\n",
-		((float)(u->bytes_total)) / 1024 / 1024);
-	fprintf(stderr, "-------------------------------\n\n");
-#else
-	return;
-#endif
-}
+	uint32_t crc;
 
-int
-ubigen_destroy(ubi_info_t *u)
-{
-	if (u == NULL)
-		return -EINVAL;
-
-	ubi_info_t tmp = *u;
-
-	if (tmp) {
-		if (tmp->v)
-			free(tmp->v);
-		if (tmp->ec)
-			free(tmp->ec);
-		if (tmp->buf)
-			free(tmp->buf);
-		free(tmp);
+	memset(hdr, '\0', sizeof(struct ubi_vid_hdr));
+
+	hdr->magic = cpu_to_be32(UBI_VID_HDR_MAGIC);
+	hdr->version = ui->ubi_ver;
+	hdr->vol_type = vi->type;
+	hdr->vol_id = cpu_to_be32(vi->id);
+	hdr->lnum = cpu_to_be32(lnum);
+	hdr->data_pad = cpu_to_be32(vi->data_pad);
+	hdr->compat = vi->compat;
+
+	if (vi->type == UBI_VID_STATIC) {
+		hdr->data_size = cpu_to_be32(data_size);
+		hdr->used_ebs = cpu_to_be32(vi->used_ebs);
+		crc = crc32(UBI_CRC32_INIT, data, data_size);
+		hdr->data_crc = cpu_to_be32(crc);
 	}
-	*u = NULL;
-	return 0;
-}
 
-void
-ubigen_init(void)
-{
-	init_crc32_table(crc32_table);
+	crc = crc32(UBI_CRC32_INIT, hdr, UBI_VID_HDR_SIZE_CRC);
+	hdr->hdr_crc = cpu_to_be32(crc);
 }
 
-int
-ubigen_create(ubi_info_t* u, uint32_t vol_id, uint8_t vol_type,
-	      uint32_t eb_size, uint64_t ec, uint32_t alignment,
-	      uint8_t version, uint32_t vid_hdr_offset, uint8_t compat_flag,
-	      size_t data_size, FILE* fp_in, FILE* fp_out)
+/**
+ * ubigen_write_volume - write UBI volume.
+ * @ui: libubigen information
+ * @vi: volume information
+ * @ec: erase coutner value to put to EC headers
+ * @bytes: volume size in bytes
+ * @in: input file descriptor (has to be properly seeked)
+ * @out: output file descriptor
+ *
+ * This function reads the contents of the volume from the input file @in and
+ * writes the UBI volume to the output file @out. Returns zero on success and
+ * %-1 on failure.
+ */
+int ubigen_write_volume(const struct ubigen_info *ui,
+			const struct ubigen_vol_info *vi, long long ec,
+			long long bytes, int in, int out)
 {
-	int rc = 0;
-	ubi_info_t res = NULL;
-	uint32_t crc;
-	uint32_t data_offset;
+	int len = vi->usable_leb_size, rd, lnum = 0;
+	char inbuf[ui->leb_size], outbuf[ui->peb_size];
 
-	if (alignment == 0) {
-		rc = EUBIGEN_INVALID_ALIGNMENT;
-		goto ubigen_create_err;
-	}
-	if ((fp_in == NULL) || (fp_out == NULL)) {
-		rc = -EINVAL;
-		goto ubigen_create_err;
-	}
+	if (vi->id >= ui->max_volumes)
+		return errmsg("too high volume id %d, max. volumes is %d",
+			      vi->id, ui->max_volumes);
 
-	res = (ubi_info_t) calloc(1, sizeof(struct ubi_info));
-	if (res == NULL) {
-		rc = -ENOMEM;
-		goto ubigen_create_err;
-	}
+	if (vi->alignment >= ui->leb_size)
+		return errmsg("too large alignment %d, max is %d (LEB size)",
+			      vi->alignment, ui->leb_size);
 
-	res->v = (struct ubi_vid_hdr*) calloc(1, sizeof(struct ubi_vid_hdr));
-	if (res->v == NULL) {
-		rc = -ENOMEM;
-		goto ubigen_create_err;
-	}
+	memset(outbuf, 0xFF, ui->data_offs);
+	ubigen_init_ec_hdr(ui, (struct ubi_ec_hdr *)outbuf, ec);
 
-	res->ec = (struct ubi_ec_hdr*) calloc(1, sizeof(struct ubi_ec_hdr));
-	if (res->ec == NULL) {
-		rc = -ENOMEM;
-		goto ubigen_create_err;
-	}
+	while (bytes) {
+		int l;
+		struct ubi_vid_hdr *vid_hdr;
 
-	/* data which is needed in the general process */
-	vid_hdr_offset = vid_hdr_offset ? vid_hdr_offset : DEFAULT_VID_OFFSET;
-	data_offset = vid_hdr_offset + UBI_VID_HDR_SIZE;
-	res->bytes_total = data_size;
-	res->eb_size = eb_size ? eb_size : DEFAULT_BLOCKSIZE;
-	res->data_pad = (res->eb_size - data_offset) % alignment;
-	res->leb_size = res->eb_size - data_offset - res->data_pad;
-	res->leb_total = byte_to_blk(data_size, res->leb_size);
-	res->alignment = alignment;
-
-	if ((res->eb_size < (vid_hdr_offset + UBI_VID_HDR_SIZE))) {
-		rc = EUBIGEN_TOO_SMALL_EB;
-		goto ubigen_create_err;
-	}
-	res->fp_in = fp_in;
-	res->fp_out = fp_out;
-
-	/* vid hdr data which doesn't change */
-	res->v->magic = cpu_to_be32(UBI_VID_HDR_MAGIC);
-	res->v->version = version ? version : UBI_VERSION;
-	res->v->vol_type = vol_type;
-	res->v->vol_id = cpu_to_be32(vol_id);
-	res->v->compat = compat_flag;
-	res->v->data_pad = cpu_to_be32(res->data_pad);
-
-	/* static only: used_ebs */
-	if (res->v->vol_type == UBI_VID_STATIC) {
-		res->v->used_ebs = cpu_to_be32(byte_to_blk
-						(res->bytes_total,
-						 res->leb_size));
-	}
+		if (bytes < len)
+			len = bytes;
+		bytes -= len;
 
-	/* ec hdr (fixed, doesn't change) */
-	res->ec->magic = cpu_to_be32(UBI_EC_HDR_MAGIC);
-	res->ec->version = version ? version : UBI_VERSION;
-	res->ec->ec = cpu_to_be64(ec);
-	res->ec->vid_hdr_offset = cpu_to_be32(vid_hdr_offset);
+		l = len;
+		do {
+			rd = read(in, inbuf + len - l, l);
+			if (rd != l)
+				return sys_errmsg("cannot read %d bytes from the input file", l);
 
-	res->ec->data_offset = cpu_to_be32(data_offset);
+			l -= rd;
+		} while (l);
 
-	crc = clc_crc32(crc32_table, UBI_CRC32_INIT, res->ec,
-			UBI_EC_HDR_SIZE_CRC);
-	res->ec->hdr_crc = cpu_to_be32(crc);
+		vid_hdr = (struct ubi_vid_hdr *)(&outbuf[ui->vid_hdr_offs]);
+		init_vid_hdr(ui, vi, vid_hdr, lnum, inbuf, len);
 
-	/* prepare a read buffer */
-	res->buf = (uint8_t*) malloc (res->eb_size * sizeof(uint8_t));
-	if (res->buf == NULL) {
-		rc = -ENOMEM;
-		goto ubigen_create_err;
-	}
-
-	/* point to distinct regions within the buffer */
-	res->ptr_ec_hdr = res->buf;
-	res->ptr_vid_hdr = res->buf + be32_to_cpu(res->ec->vid_hdr_offset);
-	res->ptr_data = res->buf + be32_to_cpu(res->ec->vid_hdr_offset)
-		+ UBI_VID_HDR_SIZE;
+		memcpy(outbuf + ui->data_offs, inbuf, len);
+		memset(outbuf + ui->data_offs + len, 0xFF,
+		       ui->peb_size - ui->data_offs - len);
 
-	rc = validate_ubi_info(res);
-	if (rc != 0) {
-		fprintf(stderr, "Volume validation failed: %d\n", rc);
-		goto ubigen_create_err;
-	}
+		if (write(out, outbuf, ui->peb_size) != ui->peb_size)
+			return sys_errmsg("cannot write %d bytes to the output file", ui->peb_size);
 
-	dump_info(res);
-	*u = res;
-	return rc;
-
- ubigen_create_err:
-	if (res) {
-		if (res->v)
-			free(res->v);
-		if (res->ec)
-			free(res->ec);
-		if (res->buf)
-			free(res->buf);
-		free(res);
+		lnum += 1;
 	}
-	*u = NULL;
-	return rc;
-}
 
-int
-ubigen_get_leb_size(ubi_info_t u, size_t* size)
-{
-	if (u == NULL)
-		return -EINVAL;
-
-	*size = u->leb_size;
 	return 0;
 }
 
-
-int
-ubigen_get_leb_total(ubi_info_t u, size_t* total)
-{
-	if (u == NULL)
-		return -EINVAL;
-
-	*total = u->leb_total;
-	return 0;
-}
-
-int
-ubigen_set_lvol_rec(ubi_info_t u, size_t reserved_bytes,
-		    const char* vol_name, struct ubi_vtbl_record *lvol_rec)
+/**
+ * ubigen_write_layout_vol - write UBI layout volume
+ * @ui: libubigen information
+ * @peb1: physical eraseblock number to write the first volume table copy
+ * @peb2: physical eraseblock number to write the second volume table copy
+ * @ec1: erase counter value for @peb1
+ * @ec2: erase counter value for @peb1
+ * @vtbl: volume table
+ * @fd: output file descriptor seeked to the proper position
+ *
+ * This function creates the UBI layout volume which contains 2 copies of the
+ * volume table. Returns zero in case of success and %-1 in case of failure.
+ */
+int ubigen_write_layout_vol(const struct ubigen_info *ui, int peb1, int peb2,
+			    long long ec1, long long ec2,
+			    struct ubi_vtbl_record *vtbl, int fd)
 {
-	uint32_t crc;
-
-	if ((u == NULL) || (vol_name == NULL))
-		return -EINVAL;
-
-	memset(lvol_rec, 0x0, UBI_VTBL_RECORD_SIZE);
-
-	lvol_rec->reserved_pebs =
-		cpu_to_be32(byte_to_blk(reserved_bytes, u->leb_size));
-	lvol_rec->alignment = cpu_to_be32(u->alignment);
-	lvol_rec->data_pad = u->v->data_pad;
-	lvol_rec->vol_type = u->v->vol_type;
-
-	lvol_rec->name_len =
-		cpu_to_be16((uint16_t)strlen((const char*)vol_name));
-
-	memcpy(lvol_rec->name, vol_name, UBI_VOL_NAME_MAX + 1);
-
-	crc = clc_crc32(crc32_table, UBI_CRC32_INIT,
-			lvol_rec, UBI_VTBL_RECORD_SIZE_CRC);
-	lvol_rec->crc =	 cpu_to_be32(crc);
+	int ret;
+	struct ubigen_vol_info vi;
+	char outbuf[ui->peb_size];
+	struct ubi_vid_hdr *vid_hdr;
+	off_t seek;
+
+	vi.bytes = ui->leb_size * UBI_LAYOUT_VOLUME_EBS;
+	vi.id = UBI_LAYOUT_VOLUME_ID;
+	vi.alignment = UBI_LAYOUT_VOLUME_ALIGN;
+	vi.data_pad = ui->leb_size % UBI_LAYOUT_VOLUME_ALIGN;
+	vi.usable_leb_size = ui->leb_size - vi.data_pad;
+	vi.data_pad = ui->leb_size - vi.usable_leb_size;
+	vi.type = UBI_LAYOUT_VOLUME_TYPE;
+	vi.name = UBI_LAYOUT_VOLUME_NAME;
+	vi.name_len = strlen(UBI_LAYOUT_VOLUME_NAME);
+	vi.compat = UBI_LAYOUT_VOLUME_COMPAT;
+
+	memset(outbuf, 0xFF, ui->data_offs);
+	vid_hdr = (struct ubi_vid_hdr *)(&outbuf[ui->vid_hdr_offs]);
+	memcpy(outbuf + ui->data_offs, vtbl, ui->vtbl_size);
+	memset(outbuf + ui->data_offs + ui->vtbl_size, 0xFF,
+	       ui->peb_size - ui->data_offs - ui->vtbl_size);
+
+	seek = peb1 * ui->peb_size;
+	if (lseek(fd, seek, SEEK_SET) != seek)
+		return sys_errmsg("cannot seek output file");
+	ubigen_init_ec_hdr(ui, (struct ubi_ec_hdr *)outbuf, ec1);
+	init_vid_hdr(ui, &vi, vid_hdr, 0, NULL, 0);
+	ret = write(fd, outbuf, ui->peb_size);
+	if (ret != ui->peb_size)
+		return sys_errmsg("cannot write %d bytes", ui->peb_size);
+
+	seek = peb2 * ui->peb_size;
+	if (lseek(fd, seek, SEEK_SET) != seek)
+		return sys_errmsg("cannot seek output file");
+	ubigen_init_ec_hdr(ui, (struct ubi_ec_hdr *)outbuf, ec2);
+	init_vid_hdr(ui, &vi, vid_hdr, 1, NULL, 0);
+	ret = write(fd, outbuf, ui->peb_size);
+	if (ret != ui->peb_size)
+		return sys_errmsg("cannot write %d bytes", ui->peb_size);
 
 	return 0;
 }
diff --git a/ubi-utils/new-utils/src/ubiattach.c b/ubi-utils/src/ubiattach.c
index 1f72620..1f72620 100644
--- a/ubi-utils/new-utils/src/ubiattach.c
+++ b/ubi-utils/src/ubiattach.c
diff --git a/ubi-utils/new-utils/src/ubicrc32.c b/ubi-utils/src/ubicrc32.c
index d39af10..d39af10 100644
--- a/ubi-utils/new-utils/src/ubicrc32.c
+++ b/ubi-utils/src/ubicrc32.c
diff --git a/ubi-utils/new-utils/src/ubidetach.c b/ubi-utils/src/ubidetach.c
index 50670d0..50670d0 100644
--- a/ubi-utils/new-utils/src/ubidetach.c
+++ b/ubi-utils/src/ubidetach.c
diff --git a/ubi-utils/new-utils/src/ubiformat.c b/ubi-utils/src/ubiformat.c
index 0074c7a..0074c7a 100644
--- a/ubi-utils/new-utils/src/ubiformat.c
+++ b/ubi-utils/src/ubiformat.c
diff --git a/ubi-utils/new-utils/src/ubimkvol.c b/ubi-utils/src/ubimkvol.c
index 820c9d8..820c9d8 100644
--- a/ubi-utils/new-utils/src/ubimkvol.c
+++ b/ubi-utils/src/ubimkvol.c
diff --git a/ubi-utils/new-utils/src/ubinfo.c b/ubi-utils/src/ubinfo.c
index 536ec01..536ec01 100644
--- a/ubi-utils/new-utils/src/ubinfo.c
+++ b/ubi-utils/src/ubinfo.c
diff --git a/ubi-utils/new-utils/src/ubinize.c b/ubi-utils/src/ubinize.c
index 0762aa8..0762aa8 100644
--- a/ubi-utils/new-utils/src/ubinize.c
+++ b/ubi-utils/src/ubinize.c
diff --git a/ubi-utils/new-utils/src/ubirename.c b/ubi-utils/src/ubirename.c
index 8f33718..8f33718 100644
--- a/ubi-utils/new-utils/src/ubirename.c
+++ b/ubi-utils/src/ubirename.c
diff --git a/ubi-utils/new-utils/src/ubirmvol.c b/ubi-utils/src/ubirmvol.c
index a4cf1df..a4cf1df 100644
--- a/ubi-utils/new-utils/src/ubirmvol.c
+++ b/ubi-utils/src/ubirmvol.c
diff --git a/ubi-utils/new-utils/src/ubiupdatevol.c b/ubi-utils/src/ubiupdatevol.c
index c83731c..c83731c 100644
--- a/ubi-utils/new-utils/src/ubiupdatevol.c
+++ b/ubi-utils/src/ubiupdatevol.c