diff --git a/Makefile.am b/Makefile.am
index 141973ef..771deaf7 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -28,7 +28,6 @@ TESTS =
 include lib/sqfs/Makemodule.am
 include lib/util/Makemodule.am
 include lib/xfrm/Makemodule.am
-include lib/io/Makemodule.am
 
 include lib/fstree/Makemodule.am
 include lib/common/Makemodule.am
diff --git a/bin/gensquashfs/Makemodule.am b/bin/gensquashfs/Makemodule.am
index 81a88a13..6410b1a1 100644
--- a/bin/gensquashfs/Makemodule.am
+++ b/bin/gensquashfs/Makemodule.am
@@ -3,7 +3,7 @@ gensquashfs_SOURCES = bin/gensquashfs/src/mkfs.c bin/gensquashfs/src/mkfs.h \
 	bin/gensquashfs/src/apply_xattr.c bin/gensquashfs/src/filemap_xattr.c\
 	bin/gensquashfs/src/fstree_from_file.c \
 	bin/gensquashfs/src/sort_by_file.c bin/gensquashfs/src/glob.c
-gensquashfs_LDADD = libcommon.a libsquashfs.la libio.a libfstree.a
+gensquashfs_LDADD = libcommon.a libsquashfs.la libfstree.a
 gensquashfs_LDADD += libutil.a libcompat.a $(LZO_LIBS) $(PTHREAD_LIBS)
 gensquashfs_CPPFLAGS = $(AM_CPPFLAGS)
 gensquashfs_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS)
@@ -33,7 +33,7 @@ test_fstree_from_file_SOURCES = bin/gensquashfs/test/fstree_from_file.c \
 				bin/gensquashfs/src/mkfs.h
 test_fstree_from_file_CPPFLAGS = $(AM_CPPFLAGS)
 test_fstree_from_file_CPPFLAGS += -I$(top_srcdir)/bin/gensquashfs/src
-test_fstree_from_file_LDADD = libsquashfs.la libcommon.a libfstree.a libio.a \
+test_fstree_from_file_LDADD = libsquashfs.la libcommon.a libfstree.a \
 			libutil.a libcompat.a
 
 test_fstree_from_file2_SOURCES = bin/gensquashfs/test/fstree_from_file2.c \
@@ -42,7 +42,7 @@ test_fstree_from_file2_SOURCES = bin/gensquashfs/test/fstree_from_file2.c \
 				bin/gensquashfs/src/mkfs.h
 test_fstree_from_file2_CPPFLAGS = $(AM_CPPFLAGS)
 test_fstree_from_file2_CPPFLAGS += -I$(top_srcdir)/bin/gensquashfs/src
-test_fstree_from_file2_LDADD = libsquashfs.la libcommon.a libfstree.a libio.a \
+test_fstree_from_file2_LDADD = libsquashfs.la libcommon.a libfstree.a \
 			libutil.a libcompat.a
 
 test_fstree_glob1_SOURCES = bin/gensquashfs/test/fstree_glob1.c \
@@ -51,7 +51,7 @@ test_fstree_glob1_SOURCES = bin/gensquashfs/test/fstree_glob1.c \
 				bin/gensquashfs/src/mkfs.h
 test_fstree_glob1_CPPFLAGS = $(AM_CPPFLAGS) -I$(top_srcdir)/bin/gensquashfs/src
 test_fstree_glob1_CPPFLAGS += -DTESTPATH=$(GENDATADIR)
-test_fstree_glob1_LDADD = libsquashfs.la libcommon.a libfstree.a libio.a \
+test_fstree_glob1_LDADD = libsquashfs.la libcommon.a libfstree.a \
 			libutil.a libcompat.a
 
 test_sort_file_SOURCES = bin/gensquashfs/test/sort_file.c \
@@ -60,7 +60,7 @@ test_sort_file_SOURCES = bin/gensquashfs/test/sort_file.c \
 				bin/gensquashfs/src/glob.c \
 				bin/gensquashfs/src/mkfs.h
 test_sort_file_CPPFLAGS = $(AM_CPPFLAGS) -I$(top_srcdir)/bin/gensquashfs/src
-test_sort_file_LDADD = libsquashfs.la libcommon.a libfstree.a libio.a \
+test_sort_file_LDADD = libsquashfs.la libcommon.a libfstree.a \
 			libutil.a libcompat.a
 
 fstree_fuzz_SOURCES = bin/gensquashfs/test/fstree_fuzz.c \
@@ -68,7 +68,7 @@ fstree_fuzz_SOURCES = bin/gensquashfs/test/fstree_fuzz.c \
 			bin/gensquashfs/src/glob.c \
 			bin/gensquashfs/src/mkfs.h
 fstree_fuzz_CPPFLAGS = $(AM_CPPFLAGS) -I$(top_srcdir)/bin/gensquashfs/src
-fstree_fuzz_LDADD = libsquashfs.la libcommon.a libfstree.a libio.a \
+fstree_fuzz_LDADD = libsquashfs.la libcommon.a libfstree.a \
 		libutil.a libcompat.a
 
 GENSQUASHFS_TESTS = \
diff --git a/bin/gensquashfs/src/mkfs.h b/bin/gensquashfs/src/mkfs.h
index 06774df2..8e69fc1b 100644
--- a/bin/gensquashfs/src/mkfs.h
+++ b/bin/gensquashfs/src/mkfs.h
@@ -11,7 +11,7 @@
 #include "config.h"
 
 #include "common.h"
-#include "io/dir_iterator.h"
+#include "dir_tree_iterator.h"
 #include "util/util.h"
 #include "util/parse.h"
 
diff --git a/include/io/dir_iterator.h b/include/dir_tree_iterator.h
similarity index 99%
rename from include/io/dir_iterator.h
rename to include/dir_tree_iterator.h
index 7154b08d..e9a4a791 100644
--- a/include/io/dir_iterator.h
+++ b/include/dir_tree_iterator.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: LGPL-3.0-or-later */
 /*
- * dir_iterator.h
+ * dir_tree_iterator.h
  *
  * Copyright (C) 2023 David Oberhollenzer <goliath@infraroot.at>
  */
diff --git a/include/tar/tar.h b/include/tar/tar.h
index 84cffb55..6b1bed88 100644
--- a/include/tar/tar.h
+++ b/include/tar/tar.h
@@ -9,7 +9,6 @@
 
 #include "config.h"
 #include "compat.h"
-#include "io/dir_iterator.h"
 #include "sqfs/io.h"
 
 #include <stdbool.h>
diff --git a/lib/common/Makemodule.am b/lib/common/Makemodule.am
index 9438d3a8..5230fcf8 100644
--- a/lib/common/Makemodule.am
+++ b/lib/common/Makemodule.am
@@ -7,7 +7,8 @@ libcommon_a_SOURCES = include/common.h include/simple_writer.h \
 	lib/common/src/writer/serialize_fstree.c lib/common/src/writer/finish.c\
 	lib/common/src/fstree_cli.c lib/common/src/perror.c \
 	lib/common/src/dir_tree.c lib/common/src/read_tree.c \
-	lib/common/src/stream.c
+	lib/common/src/stream.c lib/common/src/dir_tree_iterator.c \
+	include/dir_tree_iterator.h lib/common/src/dir_tree_iterator.c
 libcommon_a_CFLAGS = $(AM_CFLAGS) $(LZO_CFLAGS)
 
 if WITH_LZO
@@ -26,8 +27,24 @@ test_fstree_cli_LDADD = libcommon.a libutil.a libcompat.a
 test_get_node_path_SOURCES = lib/common/test/get_node_path.c
 test_get_node_path_LDADD = libcommon.a libsquashfs.la libcompat.a
 
+test_dir_tree_iterator_SOURCES = lib/common/test/dir_tree_iterator.c
+test_dir_tree_iterator_LDADD = libcommon.a libsquashfs.la libutil.a libcompat.a
+test_dir_tree_iterator_CPPFLAGS = $(AM_CPPFLAGS)
+test_dir_tree_iterator_CPPFLAGS += -DTESTPATH=$(top_srcdir)/lib/sqfs/test/testdir
+
+test_dir_tree_iterator2_SOURCES = lib/common/test/dir_tree_iterator2.c
+test_dir_tree_iterator2_LDADD = libcommon.a libsquashfs.la libutil.a libcompat.a
+test_dir_tree_iterator2_CPPFLAGS = $(AM_CPPFLAGS)
+test_dir_tree_iterator2_CPPFLAGS += -DTESTPATH=$(top_srcdir)/lib/sqfs/test/testdir
+
+test_dir_tree_iterator3_SOURCES = lib/common/test/dir_tree_iterator3.c
+test_dir_tree_iterator3_LDADD = libcommon.a libsquashfs.la libutil.a libcompat.a
+test_dir_tree_iterator3_CPPFLAGS = $(AM_CPPFLAGS)
+test_dir_tree_iterator3_CPPFLAGS += -DTESTPATH=$(top_srcdir)/lib/sqfs/test/testdir
+
 LIBCOMMON_TESTS = \
-	test_istream_mem test_fstree_cli test_get_node_path
+	test_istream_mem test_fstree_cli test_get_node_path \
+	test_dir_tree_iterator test_dir_tree_iterator2 test_dir_tree_iterator3
 
 check_PROGRAMS += $(LIBCOMMON_TESTS)
 TESTS += $(LIBCOMMON_TESTS)
diff --git a/lib/io/src/dir_tree_iterator.c b/lib/common/src/dir_tree_iterator.c
similarity index 99%
rename from lib/io/src/dir_tree_iterator.c
rename to lib/common/src/dir_tree_iterator.c
index 56884898..f1615078 100644
--- a/lib/io/src/dir_tree_iterator.c
+++ b/lib/common/src/dir_tree_iterator.c
@@ -5,7 +5,7 @@
  * Copyright (C) 2023 David Oberhollenzer <goliath@infraroot.at>
  */
 #include "config.h"
-#include "io/dir_iterator.h"
+#include "dir_tree_iterator.h"
 #include "util/util.h"
 #include "sqfs/error.h"
 #include "sqfs/io.h"
diff --git a/lib/io/test/dir_tree_iterator.c b/lib/common/test/dir_tree_iterator.c
similarity index 99%
rename from lib/io/test/dir_tree_iterator.c
rename to lib/common/test/dir_tree_iterator.c
index 6c7f1bfd..2a065d89 100644
--- a/lib/io/test/dir_tree_iterator.c
+++ b/lib/common/test/dir_tree_iterator.c
@@ -6,11 +6,12 @@
  */
 #include "config.h"
 
-#include "io/dir_iterator.h"
+#include "dir_tree_iterator.h"
 #include "sqfs/error.h"
 #include "util/test.h"
 #include "sqfs/io.h"
 #include "compat.h"
+#include "common.h"
 
 static int compare_entries(const void *a, const void *b)
 {
diff --git a/lib/io/test/dir_tree_iterator2.c b/lib/common/test/dir_tree_iterator2.c
similarity index 99%
rename from lib/io/test/dir_tree_iterator2.c
rename to lib/common/test/dir_tree_iterator2.c
index 91849578..4d922606 100644
--- a/lib/io/test/dir_tree_iterator2.c
+++ b/lib/common/test/dir_tree_iterator2.c
@@ -6,11 +6,12 @@
  */
 #include "config.h"
 
-#include "io/dir_iterator.h"
+#include "dir_tree_iterator.h"
 #include "sqfs/error.h"
 #include "util/test.h"
 #include "sqfs/io.h"
 #include "compat.h"
+#include "common.h"
 
 static int compare_entries(const void *a, const void *b)
 {
diff --git a/lib/io/test/dir_tree_iterator3.c b/lib/common/test/dir_tree_iterator3.c
similarity index 97%
rename from lib/io/test/dir_tree_iterator3.c
rename to lib/common/test/dir_tree_iterator3.c
index ccb6bdb4..612a7eb1 100644
--- a/lib/io/test/dir_tree_iterator3.c
+++ b/lib/common/test/dir_tree_iterator3.c
@@ -6,11 +6,12 @@
  */
 #include "config.h"
 
-#include "io/dir_iterator.h"
+#include "dir_tree_iterator.h"
 #include "sqfs/error.h"
 #include "util/test.h"
 #include "sqfs/io.h"
 #include "compat.h"
+#include "common.h"
 
 static int compare_entries(const void *a, const void *b)
 {
diff --git a/lib/io/Makemodule.am b/lib/io/Makemodule.am
deleted file mode 100644
index 75a3e59d..00000000
--- a/lib/io/Makemodule.am
+++ /dev/null
@@ -1,34 +0,0 @@
-libio_a_SOURCES = include/io/dir_iterator.h \
-	lib/io/src/dir_tree_iterator.c
-libio_a_CFLAGS = $(AM_CFLAGS) $(ZLIB_CFLAGS) $(XZ_CFLAGS)
-libio_a_CFLAGS += $(ZSTD_CFLAGS) $(BZIP2_CFLAGS)
-
-noinst_LIBRARIES += libio.a
-
-LIBIO_TESTS = test_dir_iterator \
-	test_dir_tree_iterator test_dir_tree_iterator2 test_dir_tree_iterator3
-
-test_dir_iterator_SOURCES = lib/io/test/dir_iterator.c
-test_dir_iterator_LDADD = libio.a libsquashfs.la libutil.a libcompat.a
-test_dir_iterator_CPPFLAGS = $(AM_CPPFLAGS)
-test_dir_iterator_CPPFLAGS += -DTESTPATH=$(top_srcdir)/lib/io/test/testdir
-
-test_dir_tree_iterator_SOURCES = lib/io/test/dir_tree_iterator.c
-test_dir_tree_iterator_LDADD = libio.a libsquashfs.la libutil.a libcompat.a
-test_dir_tree_iterator_CPPFLAGS = $(AM_CPPFLAGS)
-test_dir_tree_iterator_CPPFLAGS += -DTESTPATH=$(top_srcdir)/lib/io/test/testdir
-
-test_dir_tree_iterator2_SOURCES = lib/io/test/dir_tree_iterator2.c
-test_dir_tree_iterator2_LDADD = libio.a libsquashfs.la libutil.a libcompat.a
-test_dir_tree_iterator2_CPPFLAGS = $(AM_CPPFLAGS)
-test_dir_tree_iterator2_CPPFLAGS += -DTESTPATH=$(top_srcdir)/lib/io/test/testdir
-
-test_dir_tree_iterator3_SOURCES = lib/io/test/dir_tree_iterator3.c
-test_dir_tree_iterator3_LDADD = libio.a libsquashfs.la libutil.a libcompat.a
-test_dir_tree_iterator3_CPPFLAGS = $(AM_CPPFLAGS)
-test_dir_tree_iterator3_CPPFLAGS += -DTESTPATH=$(top_srcdir)/lib/io/test/testdir
-
-check_PROGRAMS += $(LIBIO_TESTS)
-TESTS += $(LIBIO_TESTS)
-
-EXTRA_DIST += $(top_srcdir)/lib/io/test/testdir
diff --git a/lib/sqfs/Makemodule.am b/lib/sqfs/Makemodule.am
index 41ea6081..df0b21a9 100644
--- a/lib/sqfs/Makemodule.am
+++ b/lib/sqfs/Makemodule.am
@@ -139,11 +139,18 @@ test_rec_dir_LDADD = libsquashfs.la libutil.a libcompat.a
 test_hl_dir_SOURCES = lib/sqfs/test/hl_dir.c
 test_hl_dir_LDADD = libsquashfs.la libutil.a libcompat.a
 
+test_dir_iterator_SOURCES = lib/sqfs/test/dir_iterator.c
+test_dir_iterator_LDADD = libsquashfs.la libutil.a libcompat.a
+test_dir_iterator_CPPFLAGS = $(AM_CPPFLAGS)
+test_dir_iterator_CPPFLAGS += -DTESTPATH=$(top_srcdir)/lib/sqfs/test/testdir
+
 LIBSQFS_TESTS = \
 	test_abi test_xattr test_table test_xattr_writer \
 	test_istream_read test_istream_skip test_stream_splice test_rec_dir \
-	test_hl_dir
+	test_hl_dir test_dir_iterator
 noinst_PROGRAMS += xattr_benchmark
 
 check_PROGRAMS += $(LIBSQFS_TESTS)
 TESTS += $(LIBSQFS_TESTS)
+
+EXTRA_DIST += $(top_srcdir)/lib/sqfs/test/testdir
diff --git a/lib/io/test/dir_iterator.c b/lib/sqfs/test/dir_iterator.c
similarity index 99%
rename from lib/io/test/dir_iterator.c
rename to lib/sqfs/test/dir_iterator.c
index 56610b68..701b8f08 100644
--- a/lib/io/test/dir_iterator.c
+++ b/lib/sqfs/test/dir_iterator.c
@@ -6,7 +6,7 @@
  */
 #include "config.h"
 
-#include "io/dir_iterator.h"
+#include "sqfs/dir_entry.h"
 #include "sqfs/error.h"
 #include "util/test.h"
 #include "sqfs/io.h"
diff --git a/lib/io/test/testdir/dira/file_a0 b/lib/sqfs/test/testdir/dira/file_a0
similarity index 100%
rename from lib/io/test/testdir/dira/file_a0
rename to lib/sqfs/test/testdir/dira/file_a0
diff --git a/lib/io/test/testdir/dira/file_a1 b/lib/sqfs/test/testdir/dira/file_a1
similarity index 100%
rename from lib/io/test/testdir/dira/file_a1
rename to lib/sqfs/test/testdir/dira/file_a1
diff --git a/lib/io/test/testdir/dira/file_a2 b/lib/sqfs/test/testdir/dira/file_a2
similarity index 100%
rename from lib/io/test/testdir/dira/file_a2
rename to lib/sqfs/test/testdir/dira/file_a2
diff --git a/lib/io/test/testdir/dirb/dirx/file_x0 b/lib/sqfs/test/testdir/dirb/dirx/file_x0
similarity index 100%
rename from lib/io/test/testdir/dirb/dirx/file_x0
rename to lib/sqfs/test/testdir/dirb/dirx/file_x0
diff --git a/lib/io/test/testdir/dirb/dirx/file_x1 b/lib/sqfs/test/testdir/dirb/dirx/file_x1
similarity index 100%
rename from lib/io/test/testdir/dirb/dirx/file_x1
rename to lib/sqfs/test/testdir/dirb/dirx/file_x1
diff --git a/lib/io/test/testdir/dirb/dirx/file_x2 b/lib/sqfs/test/testdir/dirb/dirx/file_x2
similarity index 100%
rename from lib/io/test/testdir/dirb/dirx/file_x2
rename to lib/sqfs/test/testdir/dirb/dirx/file_x2
diff --git a/lib/io/test/testdir/dirb/file_b0 b/lib/sqfs/test/testdir/dirb/file_b0
similarity index 100%
rename from lib/io/test/testdir/dirb/file_b0
rename to lib/sqfs/test/testdir/dirb/file_b0
diff --git a/lib/io/test/testdir/dirb/file_b1 b/lib/sqfs/test/testdir/dirb/file_b1
similarity index 100%
rename from lib/io/test/testdir/dirb/file_b1
rename to lib/sqfs/test/testdir/dirb/file_b1
diff --git a/lib/io/test/testdir/dirb/file_b2 b/lib/sqfs/test/testdir/dirb/file_b2
similarity index 100%
rename from lib/io/test/testdir/dirb/file_b2
rename to lib/sqfs/test/testdir/dirb/file_b2
diff --git a/lib/io/test/testdir/dirc/file_c0 b/lib/sqfs/test/testdir/dirc/file_c0
similarity index 100%
rename from lib/io/test/testdir/dirc/file_c0
rename to lib/sqfs/test/testdir/dirc/file_c0
diff --git a/lib/io/test/testdir/dirc/file_c1 b/lib/sqfs/test/testdir/dirc/file_c1
similarity index 100%
rename from lib/io/test/testdir/dirc/file_c1
rename to lib/sqfs/test/testdir/dirc/file_c1
diff --git a/lib/io/test/testdir/dirc/file_c2 b/lib/sqfs/test/testdir/dirc/file_c2
similarity index 100%
rename from lib/io/test/testdir/dirc/file_c2
rename to lib/sqfs/test/testdir/dirc/file_c2
diff --git a/lib/tar/src/iterator.c b/lib/tar/src/iterator.c
index 8f3353ea..570f687e 100644
--- a/lib/tar/src/iterator.c
+++ b/lib/tar/src/iterator.c
@@ -12,6 +12,7 @@
 #include "util/util.h"
 #include "xfrm/wrap.h"
 #include "compat.h"
+#include "sqfs/dir_entry.h"
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/lib/tar/test/tar_iterator.c b/lib/tar/test/tar_iterator.c
index b90d5ca2..4e893802 100644
--- a/lib/tar/test/tar_iterator.c
+++ b/lib/tar/test/tar_iterator.c
@@ -9,6 +9,7 @@
 #include "util/test.h"
 #include "sqfs/error.h"
 #include "sqfs/io.h"
+#include "sqfs/dir_entry.h"
 
 #ifndef TESTUID
 #define TESTUID 1000
diff --git a/lib/tar/test/tar_iterator2.c b/lib/tar/test/tar_iterator2.c
index 630f5790..e983c27f 100644
--- a/lib/tar/test/tar_iterator2.c
+++ b/lib/tar/test/tar_iterator2.c
@@ -8,6 +8,7 @@
 #include "tar/tar.h"
 #include "util/test.h"
 #include "sqfs/io.h"
+#include "sqfs/dir_entry.h"
 
 static const struct {
 	uint64_t offset;
diff --git a/lib/tar/test/tar_iterator3.c b/lib/tar/test/tar_iterator3.c
index 05940a25..e9bb472f 100644
--- a/lib/tar/test/tar_iterator3.c
+++ b/lib/tar/test/tar_iterator3.c
@@ -10,6 +10,7 @@
 #include "util/test.h"
 #include "sqfs/error.h"
 #include "sqfs/io.h"
+#include "sqfs/dir_entry.h"
 
 int main(int argc, char **argv)
 {
diff --git a/lib/tar/test/tar_write_simple.c b/lib/tar/test/tar_write_simple.c
index c82fe084..225841e7 100644
--- a/lib/tar/test/tar_write_simple.c
+++ b/lib/tar/test/tar_write_simple.c
@@ -9,6 +9,7 @@
 #include "sqfs/io.h"
 #include "util/test.h"
 #include "sqfs/xattr.h"
+#include "sqfs/dir_entry.h"
 #include "compat.h"
 
 static void hex_dump(const sqfs_u8 *data, size_t size)