Incorporate libnetfilter_conntrack

Bug: 32343753
Test: na
Change-Id: I60299984ada56d72d44edf7b814f2cf7118b4e4b

23 files changed, 2375 insertions, 0 deletions

diff --git a/utils/Makefile.am b/utils/Makefile.am
new file mode 100644
index 0000000..69bafe6
--- /dev/null
+++ b/utils/Makefile.am
@@ -0,0 +1,75 @@
+include $(top_srcdir)/Make_global.am
+
+check_PROGRAMS = expect_dump expect_create expect_get expect_delete \
+	       expect_flush expect_events expect_create_userspace \
+	       expect_create_nat \
+	       conntrack_create conntrack_dump conntrack_update \
+	       conntrack_delete conntrack_flush conntrack_create_nat \
+	       conntrack_get conntrack_events \
+	       conntrack_master conntrack_filter \
+	       conntrack_grp_create \
+	       conntrack_dump_filter \
+	       ctexp_events
+
+conntrack_grp_create_SOURCES = conntrack_grp_create.c
+conntrack_grp_create_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_create_SOURCES = conntrack_create.c
+conntrack_create_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_get_SOURCES = conntrack_get.c
+conntrack_get_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_create_nat_SOURCES = conntrack_create_nat.c
+conntrack_create_nat_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_update_SOURCES = conntrack_update.c
+conntrack_update_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_delete_SOURCES = conntrack_delete.c
+conntrack_delete_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_dump_SOURCES = conntrack_dump.c
+conntrack_dump_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_dump_filter_SOURCES = conntrack_dump_filter.c
+conntrack_dump_filter_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_flush_SOURCES = conntrack_flush.c
+conntrack_flush_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_events_SOURCES = conntrack_events.c
+conntrack_events_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_filter_SOURCES = conntrack_filter.c
+conntrack_filter_LDADD = ../src/libnetfilter_conntrack.la
+
+conntrack_master_SOURCES = conntrack_master.c
+conntrack_master_LDADD = ../src/libnetfilter_conntrack.la
+
+expect_dump_SOURCES = expect_dump.c
+expect_dump_LDADD = ../src/libnetfilter_conntrack.la
+
+expect_create_nat_SOURCES = expect_create_nat.c
+expect_create_nat_LDADD = ../src/libnetfilter_conntrack.la
+
+expect_create_SOURCES = expect_create.c
+expect_create_LDADD = ../src/libnetfilter_conntrack.la
+
+expect_create_userspace_SOURCES = expect_create_userspace.c
+expect_create_userspace_LDADD = ../src/libnetfilter_conntrack.la
+
+expect_get_SOURCES = expect_get.c
+expect_get_LDADD = ../src/libnetfilter_conntrack.la
+
+expect_delete_SOURCES = expect_delete.c
+expect_delete_LDADD = ../src/libnetfilter_conntrack.la
+
+expect_flush_SOURCES = expect_flush.c
+expect_flush_LDADD = ../src/libnetfilter_conntrack.la
+
+expect_events_SOURCES = expect_events.c
+expect_events_LDADD = ../src/libnetfilter_conntrack.la
+
+ctexp_events_SOURCES = ctexp_events.c
+ctexp_events_LDADD = ../src/libnetfilter_conntrack.la
diff --git a/utils/Makefile.in b/utils/Makefile.in
new file mode 100644
index 0000000..d08db07
--- /dev/null
+++ b/utils/Makefile.in
@@ -0,0 +1,821 @@
+# Makefile.in generated by automake 1.14.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
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+DIST_COMMON = $(top_srcdir)/Make_global.am $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build-aux/depcomp
+check_PROGRAMS = expect_dump$(EXEEXT) expect_create$(EXEEXT) \
+	expect_get$(EXEEXT) expect_delete$(EXEEXT) \
+	expect_flush$(EXEEXT) expect_events$(EXEEXT) \
+	expect_create_userspace$(EXEEXT) expect_create_nat$(EXEEXT) \
+	conntrack_create$(EXEEXT) conntrack_dump$(EXEEXT) \
+	conntrack_update$(EXEEXT) conntrack_delete$(EXEEXT) \
+	conntrack_flush$(EXEEXT) conntrack_create_nat$(EXEEXT) \
+	conntrack_get$(EXEEXT) conntrack_events$(EXEEXT) \
+	conntrack_master$(EXEEXT) conntrack_filter$(EXEEXT) \
+	conntrack_grp_create$(EXEEXT) conntrack_dump_filter$(EXEEXT) \
+	ctexp_events$(EXEEXT)
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+	$(top_srcdir)/configure.ac
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+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am_conntrack_create_OBJECTS = conntrack_create.$(OBJEXT)
+conntrack_create_OBJECTS = $(am_conntrack_create_OBJECTS)
+conntrack_create_DEPENDENCIES = ../src/libnetfilter_conntrack.la
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+am_conntrack_delete_OBJECTS = conntrack_delete.$(OBJEXT)
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+	../src/libnetfilter_conntrack.la
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+SOURCES = $(conntrack_create_SOURCES) $(conntrack_create_nat_SOURCES) \
+	$(conntrack_delete_SOURCES) $(conntrack_dump_SOURCES) \
+	$(conntrack_dump_filter_SOURCES) $(conntrack_events_SOURCES) \
+	$(conntrack_filter_SOURCES) $(conntrack_flush_SOURCES) \
+	$(conntrack_get_SOURCES) $(conntrack_grp_create_SOURCES) \
+	$(conntrack_master_SOURCES) $(conntrack_update_SOURCES) \
+	$(ctexp_events_SOURCES) $(expect_create_SOURCES) \
+	$(expect_create_nat_SOURCES) \
+	$(expect_create_userspace_SOURCES) $(expect_delete_SOURCES) \
+	$(expect_dump_SOURCES) $(expect_events_SOURCES) \
+	$(expect_flush_SOURCES) $(expect_get_SOURCES)
+DIST_SOURCES = $(conntrack_create_SOURCES) \
+	$(conntrack_create_nat_SOURCES) $(conntrack_delete_SOURCES) \
+	$(conntrack_dump_SOURCES) $(conntrack_dump_filter_SOURCES) \
+	$(conntrack_events_SOURCES) $(conntrack_filter_SOURCES) \
+	$(conntrack_flush_SOURCES) $(conntrack_get_SOURCES) \
+	$(conntrack_grp_create_SOURCES) $(conntrack_master_SOURCES) \
+	$(conntrack_update_SOURCES) $(ctexp_events_SOURCES) \
+	$(expect_create_SOURCES) $(expect_create_nat_SOURCES) \
+	$(expect_create_userspace_SOURCES) $(expect_delete_SOURCES) \
+	$(expect_dump_SOURCES) $(expect_events_SOURCES) \
+	$(expect_flush_SOURCES) $(expect_get_SOURCES)
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+conntrack_grp_create_SOURCES = conntrack_grp_create.c
+conntrack_grp_create_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_create_SOURCES = conntrack_create.c
+conntrack_create_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_get_SOURCES = conntrack_get.c
+conntrack_get_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_create_nat_SOURCES = conntrack_create_nat.c
+conntrack_create_nat_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_update_SOURCES = conntrack_update.c
+conntrack_update_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_delete_SOURCES = conntrack_delete.c
+conntrack_delete_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_dump_SOURCES = conntrack_dump.c
+conntrack_dump_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_dump_filter_SOURCES = conntrack_dump_filter.c
+conntrack_dump_filter_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_flush_SOURCES = conntrack_flush.c
+conntrack_flush_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_events_SOURCES = conntrack_events.c
+conntrack_events_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_filter_SOURCES = conntrack_filter.c
+conntrack_filter_LDADD = ../src/libnetfilter_conntrack.la
+conntrack_master_SOURCES = conntrack_master.c
+conntrack_master_LDADD = ../src/libnetfilter_conntrack.la
+expect_dump_SOURCES = expect_dump.c
+expect_dump_LDADD = ../src/libnetfilter_conntrack.la
+expect_create_nat_SOURCES = expect_create_nat.c
+expect_create_nat_LDADD = ../src/libnetfilter_conntrack.la
+expect_create_SOURCES = expect_create.c
+expect_create_LDADD = ../src/libnetfilter_conntrack.la
+expect_create_userspace_SOURCES = expect_create_userspace.c
+expect_create_userspace_LDADD = ../src/libnetfilter_conntrack.la
+expect_get_SOURCES = expect_get.c
+expect_get_LDADD = ../src/libnetfilter_conntrack.la
+expect_delete_SOURCES = expect_delete.c
+expect_delete_LDADD = ../src/libnetfilter_conntrack.la
+expect_flush_SOURCES = expect_flush.c
+expect_flush_LDADD = ../src/libnetfilter_conntrack.la
+expect_events_SOURCES = expect_events.c
+expect_events_LDADD = ../src/libnetfilter_conntrack.la
+ctexp_events_SOURCES = ctexp_events.c
+ctexp_events_LDADD = ../src/libnetfilter_conntrack.la
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/Make_global.am $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign utils/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign utils/Makefile
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+	  *config.status*) \
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+	esac;
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+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+
+clean-checkPROGRAMS:
+	@list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
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+	@rm -f conntrack_create$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_create_OBJECTS) $(conntrack_create_LDADD) $(LIBS)
+
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+	@rm -f conntrack_create_nat$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_create_nat_OBJECTS) $(conntrack_create_nat_LDADD) $(LIBS)
+
+conntrack_delete$(EXEEXT): $(conntrack_delete_OBJECTS) $(conntrack_delete_DEPENDENCIES) $(EXTRA_conntrack_delete_DEPENDENCIES) 
+	@rm -f conntrack_delete$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_delete_OBJECTS) $(conntrack_delete_LDADD) $(LIBS)
+
+conntrack_dump$(EXEEXT): $(conntrack_dump_OBJECTS) $(conntrack_dump_DEPENDENCIES) $(EXTRA_conntrack_dump_DEPENDENCIES) 
+	@rm -f conntrack_dump$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_dump_OBJECTS) $(conntrack_dump_LDADD) $(LIBS)
+
+conntrack_dump_filter$(EXEEXT): $(conntrack_dump_filter_OBJECTS) $(conntrack_dump_filter_DEPENDENCIES) $(EXTRA_conntrack_dump_filter_DEPENDENCIES) 
+	@rm -f conntrack_dump_filter$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_dump_filter_OBJECTS) $(conntrack_dump_filter_LDADD) $(LIBS)
+
+conntrack_events$(EXEEXT): $(conntrack_events_OBJECTS) $(conntrack_events_DEPENDENCIES) $(EXTRA_conntrack_events_DEPENDENCIES) 
+	@rm -f conntrack_events$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_events_OBJECTS) $(conntrack_events_LDADD) $(LIBS)
+
+conntrack_filter$(EXEEXT): $(conntrack_filter_OBJECTS) $(conntrack_filter_DEPENDENCIES) $(EXTRA_conntrack_filter_DEPENDENCIES) 
+	@rm -f conntrack_filter$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_filter_OBJECTS) $(conntrack_filter_LDADD) $(LIBS)
+
+conntrack_flush$(EXEEXT): $(conntrack_flush_OBJECTS) $(conntrack_flush_DEPENDENCIES) $(EXTRA_conntrack_flush_DEPENDENCIES) 
+	@rm -f conntrack_flush$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_flush_OBJECTS) $(conntrack_flush_LDADD) $(LIBS)
+
+conntrack_get$(EXEEXT): $(conntrack_get_OBJECTS) $(conntrack_get_DEPENDENCIES) $(EXTRA_conntrack_get_DEPENDENCIES) 
+	@rm -f conntrack_get$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_get_OBJECTS) $(conntrack_get_LDADD) $(LIBS)
+
+conntrack_grp_create$(EXEEXT): $(conntrack_grp_create_OBJECTS) $(conntrack_grp_create_DEPENDENCIES) $(EXTRA_conntrack_grp_create_DEPENDENCIES) 
+	@rm -f conntrack_grp_create$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_grp_create_OBJECTS) $(conntrack_grp_create_LDADD) $(LIBS)
+
+conntrack_master$(EXEEXT): $(conntrack_master_OBJECTS) $(conntrack_master_DEPENDENCIES) $(EXTRA_conntrack_master_DEPENDENCIES) 
+	@rm -f conntrack_master$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_master_OBJECTS) $(conntrack_master_LDADD) $(LIBS)
+
+conntrack_update$(EXEEXT): $(conntrack_update_OBJECTS) $(conntrack_update_DEPENDENCIES) $(EXTRA_conntrack_update_DEPENDENCIES) 
+	@rm -f conntrack_update$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(conntrack_update_OBJECTS) $(conntrack_update_LDADD) $(LIBS)
+
+ctexp_events$(EXEEXT): $(ctexp_events_OBJECTS) $(ctexp_events_DEPENDENCIES) $(EXTRA_ctexp_events_DEPENDENCIES) 
+	@rm -f ctexp_events$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(ctexp_events_OBJECTS) $(ctexp_events_LDADD) $(LIBS)
+
+expect_create$(EXEEXT): $(expect_create_OBJECTS) $(expect_create_DEPENDENCIES) $(EXTRA_expect_create_DEPENDENCIES) 
+	@rm -f expect_create$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(expect_create_OBJECTS) $(expect_create_LDADD) $(LIBS)
+
+expect_create_nat$(EXEEXT): $(expect_create_nat_OBJECTS) $(expect_create_nat_DEPENDENCIES) $(EXTRA_expect_create_nat_DEPENDENCIES) 
+	@rm -f expect_create_nat$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(expect_create_nat_OBJECTS) $(expect_create_nat_LDADD) $(LIBS)
+
+expect_create_userspace$(EXEEXT): $(expect_create_userspace_OBJECTS) $(expect_create_userspace_DEPENDENCIES) $(EXTRA_expect_create_userspace_DEPENDENCIES) 
+	@rm -f expect_create_userspace$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(expect_create_userspace_OBJECTS) $(expect_create_userspace_LDADD) $(LIBS)
+
+expect_delete$(EXEEXT): $(expect_delete_OBJECTS) $(expect_delete_DEPENDENCIES) $(EXTRA_expect_delete_DEPENDENCIES) 
+	@rm -f expect_delete$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(expect_delete_OBJECTS) $(expect_delete_LDADD) $(LIBS)
+
+expect_dump$(EXEEXT): $(expect_dump_OBJECTS) $(expect_dump_DEPENDENCIES) $(EXTRA_expect_dump_DEPENDENCIES) 
+	@rm -f expect_dump$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(expect_dump_OBJECTS) $(expect_dump_LDADD) $(LIBS)
+
+expect_events$(EXEEXT): $(expect_events_OBJECTS) $(expect_events_DEPENDENCIES) $(EXTRA_expect_events_DEPENDENCIES) 
+	@rm -f expect_events$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(expect_events_OBJECTS) $(expect_events_LDADD) $(LIBS)
+
+expect_flush$(EXEEXT): $(expect_flush_OBJECTS) $(expect_flush_DEPENDENCIES) $(EXTRA_expect_flush_DEPENDENCIES) 
+	@rm -f expect_flush$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(expect_flush_OBJECTS) $(expect_flush_LDADD) $(LIBS)
+
+expect_get$(EXEEXT): $(expect_get_OBJECTS) $(expect_get_DEPENDENCIES) $(EXTRA_expect_get_DEPENDENCIES) 
+	@rm -f expect_get$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(expect_get_OBJECTS) $(expect_get_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conntrack_create.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conntrack_create_nat.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conntrack_delete.Po@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conntrack_dump_filter.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conntrack_events.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conntrack_filter.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conntrack_flush.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conntrack_get.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conntrack_grp_create.Po@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/expect_create.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/expect_create_nat.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/expect_create_userspace.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/expect_delete.Po@am__quote@
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+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
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+	      "$$@" $$unique; \
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+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
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+distdir: $(DISTFILES)
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
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+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
+check: check-am
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
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+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/utils/conntrack_create.c b/utils/conntrack_create.c
new file mode 100644
index 0000000..1a81100
--- /dev/null
+++ b/utils/conntrack_create.c
@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *ct;
+
+	ct = nfct_new();
+	if (!ct) {
+		perror("nfct_new");
+		return 0;
+	}
+
+	nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+	
+	nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20));
+	nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10));
+
+	nfct_setobjopt(ct, NFCT_SOPT_SETUP_REPLY);
+
+	nfct_set_attr_u8(ct, ATTR_TCP_STATE, TCP_CONNTRACK_SYN_SENT);
+	nfct_set_attr_u32(ct, ATTR_TIMEOUT, 100);
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(ct);
+		return -1;
+	}
+
+	ret = nfct_query(h, NFCT_Q_CREATE, ct);
+
+	printf("TEST: create conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	nfct_destroy(ct);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_create_nat.c b/utils/conntrack_create_nat.c
new file mode 100644
index 0000000..b8eb78d
--- /dev/null
+++ b/utils/conntrack_create_nat.c
@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *ct;
+
+	ct = nfct_new();
+	if (!ct) {
+		perror("nfct_new");
+		return 0;
+	}
+
+	nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+	
+	nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20));
+	nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10));
+
+	nfct_setobjopt(ct, NFCT_SOPT_SETUP_REPLY);
+
+	nfct_set_attr_u8(ct, ATTR_TCP_STATE, TCP_CONNTRACK_SYN_SENT);
+	nfct_set_attr_u32(ct, ATTR_TIMEOUT, 100);
+
+	nfct_set_attr_u32(ct, ATTR_SNAT_IPV4, inet_addr("8.8.8.8"));
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(ct);
+		return -1;
+	}
+
+	ret = nfct_query(h, NFCT_Q_CREATE, ct);
+
+	printf("TEST: create conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	nfct_destroy(ct);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_delete.c b/utils/conntrack_delete.c
new file mode 100644
index 0000000..ae2fc35
--- /dev/null
+++ b/utils/conntrack_delete.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *ct;
+
+	ct = nfct_new();
+	if (!ct) {
+		perror("nfct_new");
+		return 0;
+	}
+
+	nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+	
+	nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20));
+	nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10));
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(ct);
+		return -1;
+	}
+
+	ret = nfct_query(h, NFCT_Q_DESTROY, ct);
+
+	printf("TEST: delete conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	nfct_destroy(ct);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_dump.c b/utils/conntrack_dump.c
new file mode 100644
index 0000000..8da5c8c
--- /dev/null
+++ b/utils/conntrack_dump.c
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+static int cb(enum nf_conntrack_msg_type type,
+	      struct nf_conntrack *ct,
+	      void *data)
+{
+	char buf[1024];
+
+	nfct_snprintf(buf, sizeof(buf), ct, NFCT_T_UNKNOWN, NFCT_O_DEFAULT, NFCT_OF_SHOW_LAYER3 | NFCT_OF_TIMESTAMP);
+	printf("%s\n", buf);
+
+	return NFCT_CB_CONTINUE;
+}
+
+int main(void)
+{
+	int ret;
+	uint32_t family = AF_INET;
+	struct nfct_handle *h;
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		return -1;
+	}
+
+	nfct_callback_register(h, NFCT_T_ALL, cb, NULL);
+	ret = nfct_query(h, NFCT_Q_DUMP, &family);
+
+	printf("TEST: get conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_dump_filter.c b/utils/conntrack_dump_filter.c
new file mode 100644
index 0000000..41e3f0c
--- /dev/null
+++ b/utils/conntrack_dump_filter.c
@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+static int cb(enum nf_conntrack_msg_type type,
+	      struct nf_conntrack *ct,
+	      void *data)
+{
+	char buf[1024];
+
+	nfct_snprintf(buf, sizeof(buf), ct, NFCT_T_UNKNOWN, NFCT_O_DEFAULT, NFCT_OF_SHOW_LAYER3 | NFCT_OF_TIMESTAMP);
+	printf("%s\n", buf);
+
+	return NFCT_CB_CONTINUE;
+}
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		return -1;
+	}
+	struct nfct_filter_dump *filter_dump = nfct_filter_dump_create();
+	if (filter_dump == NULL) {
+		perror("nfct_filter_dump_alloc");
+		return -1;
+	}
+	struct nfct_filter_dump_mark filter_dump_mark = {
+		.val = 1,
+		.mask = 0xffffffff,
+	};
+	nfct_filter_dump_set_attr(filter_dump, NFCT_FILTER_DUMP_MARK,
+					&filter_dump_mark);
+	nfct_filter_dump_set_attr_u8(filter_dump, NFCT_FILTER_DUMP_L3NUM,
+					AF_INET);
+
+	nfct_callback_register(h, NFCT_T_ALL, cb, NULL);
+	ret = nfct_query(h, NFCT_Q_DUMP_FILTER, filter_dump);
+
+	nfct_filter_dump_destroy(filter_dump);
+
+	printf("TEST: get conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_events.c b/utils/conntrack_events.c
new file mode 100644
index 0000000..7675663
--- /dev/null
+++ b/utils/conntrack_events.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+static int event_cb(enum nf_conntrack_msg_type type,
+		    struct nf_conntrack *ct,
+		    void *data)
+{
+	static int n = 0;
+	char buf[1024];
+
+	nfct_snprintf(buf, sizeof(buf), ct, type, NFCT_O_XML, NFCT_OF_TIME | NFCT_OF_TIMESTAMP);
+	printf("%s\n", buf);
+
+	if (++n == 10)
+		return NFCT_CB_STOP;
+
+	return NFCT_CB_CONTINUE;
+}
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+
+	h = nfct_open(CONNTRACK, NFCT_ALL_CT_GROUPS);
+	if (!h) {
+		perror("nfct_open");
+		return 0;
+	}
+
+	nfct_callback_register(h, NFCT_T_ALL, event_cb, NULL);
+
+	printf("TEST: waiting for 10 events...\n");
+
+	ret = nfct_catch(h);
+
+	printf("TEST: conntrack events ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_filter.c b/utils/conntrack_filter.c
new file mode 100644
index 0000000..a3eeebc
--- /dev/null
+++ b/utils/conntrack_filter.c
@@ -0,0 +1,104 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+static int event_cb(enum nf_conntrack_msg_type type,
+		    struct nf_conntrack *ct,
+		    void *data)
+{
+	static int n = 0;
+	char buf[1024];
+
+	nfct_snprintf(buf, sizeof(buf), ct, type, NFCT_O_PLAIN, NFCT_OF_TIME);
+	printf("%s\n", buf);
+
+	if (++n == 10)
+		return NFCT_CB_STOP;
+
+	return NFCT_CB_CONTINUE;
+}
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nfct_filter *filter;
+
+	h = nfct_open(CONNTRACK, NF_NETLINK_CONNTRACK_NEW | 
+				 NF_NETLINK_CONNTRACK_UPDATE);
+	if (!h) {
+		perror("nfct_open");
+		return 0;
+	}
+
+	filter = nfct_filter_create();
+	if (!filter) {
+		perror("nfct_create_filter");
+		return 0;
+	}
+
+	nfct_filter_add_attr_u32(filter, NFCT_FILTER_L4PROTO, IPPROTO_UDP);
+	nfct_filter_add_attr_u32(filter, NFCT_FILTER_L4PROTO, IPPROTO_TCP);
+
+	struct nfct_filter_proto filter_proto = {
+		.proto = IPPROTO_TCP,
+		.state = TCP_CONNTRACK_ESTABLISHED
+	};
+
+	nfct_filter_add_attr(filter, NFCT_FILTER_L4PROTO_STATE, &filter_proto);
+
+	/* BSF always wants data in host-byte order */
+	struct nfct_filter_ipv4 filter_ipv4 = {
+		.addr = ntohl(inet_addr("127.0.0.1")),
+		.mask = 0xffffffff,
+	};
+
+	/* ignore whatever that comes from 127.0.0.1 */
+	nfct_filter_set_logic(filter,
+			      NFCT_FILTER_SRC_IPV4,
+			      NFCT_FILTER_LOGIC_NEGATIVE);
+
+	nfct_filter_add_attr(filter, NFCT_FILTER_SRC_IPV4, &filter_ipv4);
+
+	/* BSF always wants data in host-byte order */
+	struct nfct_filter_ipv6 filter_ipv6 = {
+		.addr = { 0x0, 0x0, 0x0, 0x1 },
+		.mask = { 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff },
+	}; 
+
+	/* ignore whatever that comes from ::1 (loopback) */
+	nfct_filter_set_logic(filter,
+			      NFCT_FILTER_SRC_IPV6,
+			      NFCT_FILTER_LOGIC_NEGATIVE);
+
+	nfct_filter_add_attr(filter, NFCT_FILTER_SRC_IPV6, &filter_ipv6);
+
+	if (nfct_filter_attach(nfct_fd(h), filter) == -1) {
+		perror("nfct_filter_attach");
+		return 0;
+	}
+
+	/* release the filter object, this does not detach the filter */
+	nfct_filter_destroy(filter);
+
+	nfct_callback_register(h, NFCT_T_ALL, event_cb, NULL);
+
+	printf("TEST: waiting for 10 events...\n");
+
+	ret = nfct_catch(h);
+
+	printf("TEST: conntrack events ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_flush.c b/utils/conntrack_flush.c
new file mode 100644
index 0000000..265c4ae
--- /dev/null
+++ b/utils/conntrack_flush.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+int main(void)
+{
+	int ret;
+	uint8_t family = AF_INET;
+	struct nfct_handle *h;
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		return -1;
+	}
+
+	ret = nfct_query(h, NFCT_Q_FLUSH, &family);
+
+	printf("TEST: flush conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_get.c b/utils/conntrack_get.c
new file mode 100644
index 0000000..6ddecaf
--- /dev/null
+++ b/utils/conntrack_get.c
@@ -0,0 +1,64 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+static int cb(enum nf_conntrack_msg_type type,
+	      struct nf_conntrack *ct,
+	      void *data)
+{
+	char buf[1024];
+
+	nfct_snprintf(buf, sizeof(buf), ct, NFCT_T_UNKNOWN, NFCT_O_DEFAULT, NFCT_OF_SHOW_LAYER3);
+	printf("%s\n", buf);
+
+	return NFCT_CB_CONTINUE;
+}
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *ct;
+
+	ct = nfct_new();
+	if (!ct) {
+		perror("nfct_new");
+		return 0;
+	}
+
+	nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+	
+	nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20));
+	nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10));
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(ct);
+		return -1;
+	}
+
+	nfct_callback_register(h, NFCT_T_ALL, cb, NULL);
+
+	ret = nfct_query(h, NFCT_Q_GET, ct);
+
+	printf("TEST: get conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	nfct_destroy(ct);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_grp_create.c b/utils/conntrack_grp_create.c
new file mode 100644
index 0000000..7ad2f0d
--- /dev/null
+++ b/utils/conntrack_grp_create.c
@@ -0,0 +1,61 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *ct;
+
+	ct = nfct_new();
+	if (!ct) {
+		perror("nfct_new");
+		return 0;
+	}
+
+	struct nfct_attr_grp_ipv4 grp_ipv4 = {
+		.src = inet_addr("1.1.1.1"),
+		.dst = inet_addr("2.2.2.2")
+	};
+	nfct_set_attr_grp(ct, ATTR_GRP_ORIG_IPV4, &grp_ipv4);
+
+	struct nfct_attr_grp_port grp_port = {
+		.sport = htons(20),
+		.dport = htons(10)
+	};
+	nfct_set_attr_grp(ct, ATTR_GRP_ORIG_PORT, &grp_port);
+	nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
+
+	nfct_setobjopt(ct, NFCT_SOPT_SETUP_REPLY);
+
+	nfct_set_attr_u8(ct, ATTR_TCP_STATE, TCP_CONNTRACK_SYN_SENT);
+	nfct_set_attr_u32(ct, ATTR_TIMEOUT, 100);
+	nfct_set_attr(ct, ATTR_HELPER_NAME, "ftp");
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(ct);
+		return -1;
+	}
+
+	ret = nfct_query(h, NFCT_Q_CREATE, ct);
+
+	printf("TEST: create conntrack ");
+	if (ret == -1) 
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	nfct_destroy(ct);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_master.c b/utils/conntrack_master.c
new file mode 100644
index 0000000..a7c7bca
--- /dev/null
+++ b/utils/conntrack_master.c
@@ -0,0 +1,100 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *ct, *expected;
+
+	/* create master conntrack */
+	ct = nfct_new();
+	if (!ct) {
+		perror("nfct_new");
+		return 0;
+	}
+
+	nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+	
+	nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20));
+	nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10));
+
+	nfct_setobjopt(ct, NFCT_SOPT_SETUP_REPLY);
+
+	nfct_set_attr_u8(ct, ATTR_TCP_STATE, TCP_CONNTRACK_SYN_SENT);
+	nfct_set_attr_u32(ct, ATTR_TIMEOUT, 100);
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(ct);
+		return -1;
+	}
+
+	ret = nfct_query(h, NFCT_Q_CREATE, ct);
+
+	printf("TEST: create conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_destroy(ct);
+
+	if (ret == -1)
+		exit(EXIT_FAILURE);
+
+	/* setup confirmed conntrack */
+
+	expected = nfct_new();
+	if (!expected) {
+		perror("nfct_new");
+		return 0;
+	}
+
+	nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+	
+	nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(1024));
+	nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(1025));
+
+	nfct_setobjopt(ct, NFCT_SOPT_SETUP_REPLY);
+
+	nfct_set_attr_u8(ct, ATTR_TCP_STATE, TCP_CONNTRACK_SYN_SENT);
+	nfct_set_attr_u32(ct, ATTR_TIMEOUT, 100);
+
+	/* my conntrack master is ... */
+
+	nfct_set_attr_u8(ct, ATTR_MASTER_L3PROTO, AF_INET);
+	nfct_set_attr_u32(ct, ATTR_MASTER_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(ct, ATTR_MASTER_IPV4_DST, inet_addr("2.2.2.2"));
+	
+	nfct_set_attr_u8(ct, ATTR_MASTER_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(ct, ATTR_MASTER_PORT_SRC, htons(20));
+	nfct_set_attr_u16(ct, ATTR_MASTER_PORT_DST, htons(10));
+
+	ret = nfct_query(h, NFCT_Q_CREATE, ct);
+
+	printf("TEST: create confirmed conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	nfct_destroy(expected);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/conntrack_update.c b/utils/conntrack_update.c
new file mode 100644
index 0000000..9459a90
--- /dev/null
+++ b/utils/conntrack_update.c
@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *ct;
+
+	ct = nfct_new();
+	if (!ct) {
+		perror("nfct_new");
+		return 0;
+	}
+
+	nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+	
+	nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20));
+	nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10));
+
+	nfct_setobjopt(ct, NFCT_SOPT_SETUP_REPLY);
+
+	nfct_set_attr_u8(ct, ATTR_TCP_STATE, TCP_CONNTRACK_SYN_SENT);
+	nfct_set_attr_u32(ct, ATTR_TIMEOUT, 600);
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(ct);
+		return -1;
+	}
+
+	ret = nfct_query(h, NFCT_Q_UPDATE, ct);
+
+	printf("TEST: update conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	nfct_destroy(ct);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/ctexp_events.c b/utils/ctexp_events.c
new file mode 100644
index 0000000..c53d026
--- /dev/null
+++ b/utils/ctexp_events.c
@@ -0,0 +1,71 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+static int n = 0;
+
+static int
+ct_event_cb(enum nf_conntrack_msg_type type,struct nf_conntrack *ct, void *data)
+{
+	char buf[1024];
+
+	nfct_snprintf(buf, sizeof(buf), ct, type, NFCT_O_PLAIN, NFCT_OF_TIME);
+	printf("[CT] %s\n", buf);
+
+	if (++n == 20)
+		return NFCT_CB_STOP;
+
+	return NFCT_CB_CONTINUE;
+}
+
+static int
+exp_event_cb(enum nf_conntrack_msg_type type,struct nf_expect *exp, void *data)
+{
+	char buf[1024];
+
+	nfexp_snprintf(buf, 1024, exp, type, NFCT_O_DEFAULT, 0);
+	printf("[EXP] %s\n", buf);
+
+	if (++n == 20)
+		return NFCT_CB_STOP;
+
+	return NFCT_CB_CONTINUE;
+}
+
+int main(void)
+{
+	int ret = 0;
+	struct nfct_handle *h;
+
+	h = nfct_open(NFNL_SUBSYS_NONE, NF_NETLINK_CONNTRACK_EXP_NEW |
+					NF_NETLINK_CONNTRACK_EXP_UPDATE |
+					NF_NETLINK_CONNTRACK_EXP_DESTROY |
+					NF_NETLINK_CONNTRACK_NEW |
+					NF_NETLINK_CONNTRACK_UPDATE |
+					NF_NETLINK_CONNTRACK_DESTROY);
+	if (h == NULL) {
+		perror("nfct_open");
+		return -1;
+	}
+
+	nfexp_callback_register(h, NFCT_T_ALL, exp_event_cb, NULL);
+	nfct_callback_register(h, NFCT_T_ALL, ct_event_cb, NULL);
+
+	printf("TEST: waiting for 20 expectation events...\n");
+
+	/* we may use nfexp_catch() instead, it would also work. */
+	ret = nfct_catch(h);
+
+	printf("TEST: expectation events ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/expect_create.c b/utils/expect_create.c
new file mode 100644
index 0000000..cf379e9
--- /dev/null
+++ b/utils/expect_create.c
@@ -0,0 +1,132 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+/*
+ * WARNING: This test file creates an expectation for the FTP helper.
+ * Therefore, make sure you have load nf_conntrack_ftp before executing it. 
+ */
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *master, *expected, *mask;
+	struct nf_expect *exp;
+
+	/*
+	 * Step 1: Setup master conntrack
+	 */
+
+	master = nfct_new();
+	if (!master) {
+		perror("nfct_new");
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(master, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(master, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(master, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+
+	nfct_set_attr_u8(master, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(master, ATTR_PORT_SRC, htons(1025));
+	nfct_set_attr_u16(master, ATTR_PORT_DST, htons(21));
+
+	nfct_setobjopt(master, NFCT_SOPT_SETUP_REPLY);
+
+	nfct_set_attr_u8(master, ATTR_TCP_STATE, TCP_CONNTRACK_ESTABLISHED);
+	nfct_set_attr_u32(master, ATTR_TIMEOUT, 200);
+	nfct_set_attr(master, ATTR_HELPER_NAME, "ftp");
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(master);
+		return -1;
+	}
+
+	ret = nfct_query(h, NFCT_Q_CREATE, master);
+
+	printf("TEST: add master conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	expected = nfct_new();
+	if (!expected) {
+		perror("nfct_new");
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(expected, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(expected, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(expected, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+
+	nfct_set_attr_u8(expected, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(expected, ATTR_PORT_SRC, 0);
+	nfct_set_attr_u16(expected, ATTR_PORT_DST, htons(10241));
+
+	mask = nfct_new();
+	if (!mask) {
+		perror("nfct_new");
+		nfct_destroy(master);
+		nfct_destroy(expected);
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(mask, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(mask, ATTR_IPV4_SRC, 0xffffffff);
+	nfct_set_attr_u32(mask, ATTR_IPV4_DST, 0xffffffff);
+
+	nfct_set_attr_u8(mask, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(mask, ATTR_PORT_SRC, 0x0000);
+	nfct_set_attr_u16(mask, ATTR_PORT_DST, 0xffff);
+
+	/*
+	 * Step 2: Setup expectation
+	 */
+	
+	exp = nfexp_new();
+	if (!exp) {
+		perror("nfexp_new");
+		nfct_destroy(master);
+		nfct_destroy(expected);
+		nfct_destroy(mask);
+		exit(EXIT_FAILURE);
+	}
+
+	nfexp_set_attr(exp, ATTR_EXP_MASTER, master);
+	nfexp_set_attr(exp, ATTR_EXP_EXPECTED, expected);
+	nfexp_set_attr(exp, ATTR_EXP_MASK, mask);
+	nfexp_set_attr_u32(exp, ATTR_EXP_TIMEOUT, 200);
+
+	nfct_destroy(master);
+	nfct_destroy(expected);
+	nfct_destroy(mask);
+
+	h = nfct_open(EXPECT, 0);
+	if (!h) {
+		perror("nfct_open");
+		return -1;
+	}
+
+	ret = nfexp_query(h, NFCT_Q_CREATE, exp);
+
+	printf("TEST: create expectation ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/expect_create_nat.c b/utils/expect_create_nat.c
new file mode 100644
index 0000000..ea2daea
--- /dev/null
+++ b/utils/expect_create_nat.c
@@ -0,0 +1,152 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+/*
+ * WARNING: This test file creates an expectation for the FTP helper.
+ * Therefore, make sure you have load nf_conntrack_ftp before executing it. 
+ */
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *master, *expected, *mask, *nat;
+	struct nf_expect *exp;
+
+	/*
+	 * Step 1: Setup master conntrack
+	 */
+
+	master = nfct_new();
+	if (!master) {
+		perror("nfct_new");
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(master, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(master, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(master, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+
+	nfct_set_attr_u8(master, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(master, ATTR_PORT_SRC, htons(1025));
+	nfct_set_attr_u16(master, ATTR_PORT_DST, htons(21));
+
+	nfct_setobjopt(master, NFCT_SOPT_SETUP_REPLY);
+
+	nfct_set_attr_u8(master, ATTR_TCP_STATE, TCP_CONNTRACK_ESTABLISHED);
+	nfct_set_attr_u32(master, ATTR_TIMEOUT, 200);
+	nfct_set_attr(master, ATTR_HELPER_NAME, "ftp");
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(master);
+		return -1;
+	}
+
+	ret = nfct_query(h, NFCT_Q_CREATE, master);
+
+	printf("TEST: add master conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	expected = nfct_new();
+	if (!expected) {
+		perror("nfct_new");
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(expected, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(expected, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(expected, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+
+	nfct_set_attr_u8(expected, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(expected, ATTR_PORT_SRC, 0);
+	nfct_set_attr_u16(expected, ATTR_PORT_DST, htons(10241));
+
+	mask = nfct_new();
+	if (!mask) {
+		perror("nfct_new");
+		nfct_destroy(master);
+		nfct_destroy(expected);
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(mask, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(mask, ATTR_IPV4_SRC, 0xffffffff);
+	nfct_set_attr_u32(mask, ATTR_IPV4_DST, 0xffffffff);
+
+	nfct_set_attr_u8(mask, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(mask, ATTR_PORT_SRC, 0x0000);
+	nfct_set_attr_u16(mask, ATTR_PORT_DST, 0xffff);
+
+	nat = nfct_new();
+	if (!nat) {
+		perror("nfct_new");
+		nfct_destroy(mask);
+		nfct_destroy(master);
+		nfct_destroy(expected);
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(nat, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(nat, ATTR_IPV4_SRC, inet_addr("3.3.3.3"));
+	nfct_set_attr_u32(nat, ATTR_IPV4_DST, 0);
+
+	nfct_set_attr_u8(nat, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(nat, ATTR_PORT_SRC, 12345);
+	nfct_set_attr_u16(nat, ATTR_PORT_DST, 0);
+
+	/*
+	 * Step 2: Setup expectation
+	 */
+
+	exp = nfexp_new();
+	if (!exp) {
+		perror("nfexp_new");
+		nfct_destroy(master);
+		nfct_destroy(expected);
+		nfct_destroy(mask);
+		exit(EXIT_FAILURE);
+	}
+
+	nfexp_set_attr(exp, ATTR_EXP_MASTER, master);
+	nfexp_set_attr(exp, ATTR_EXP_EXPECTED, expected);
+	nfexp_set_attr(exp, ATTR_EXP_MASK, mask);
+	nfexp_set_attr(exp, ATTR_EXP_NAT_TUPLE, nat);
+	nfexp_set_attr_u32(exp, ATTR_EXP_NAT_DIR, 0);
+	nfexp_set_attr_u32(exp, ATTR_EXP_TIMEOUT, 200);
+
+	nfct_destroy(master);
+	nfct_destroy(expected);
+	nfct_destroy(mask);
+	nfct_destroy(nat);
+
+	h = nfct_open(EXPECT, 0);
+	if (!h) {
+		perror("nfct_open");
+		return -1;
+	}
+
+	ret = nfexp_query(h, NFCT_Q_CREATE, exp);
+
+	printf("TEST: create expectation ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/expect_create_userspace.c b/utils/expect_create_userspace.c
new file mode 100644
index 0000000..8f55a9f
--- /dev/null
+++ b/utils/expect_create_userspace.c
@@ -0,0 +1,137 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+/*
+ * This example shows how to setup a user-space expectation. This requires
+ * a Linux kernel >= 2.6.37.
+ */
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *master, *expected, *mask;
+	struct nf_expect *exp;
+
+	/*
+	 * Step 1: Setup master conntrack
+	 */
+
+	master = nfct_new();
+	if (!master) {
+		perror("nfct_new");
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(master, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(master, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(master, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+
+	nfct_set_attr_u8(master, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(master, ATTR_PORT_SRC, htons(1025));
+	nfct_set_attr_u16(master, ATTR_PORT_DST, htons(21));
+
+	nfct_setobjopt(master, NFCT_SOPT_SETUP_REPLY);
+
+	nfct_set_attr_u8(master, ATTR_TCP_STATE, TCP_CONNTRACK_ESTABLISHED);
+	nfct_set_attr_u32(master, ATTR_TIMEOUT, 200);
+
+	h = nfct_open(CONNTRACK, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(master);
+		return -1;
+	}
+
+	/*
+	 * In a real scenario in which you want to implement an helper in
+	 * user-space with NFQUEUE, the master conntrack does not need to
+	 * be created, since it should already exist.
+	 */
+	ret = nfct_query(h, NFCT_Q_CREATE, master);
+
+	printf("TEST: add master conntrack ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	expected = nfct_new();
+	if (!expected) {
+		perror("nfct_new");
+		nfct_destroy(master);
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(expected, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(expected, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(expected, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+
+	nfct_set_attr_u8(expected, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(expected, ATTR_PORT_SRC, 0);
+	nfct_set_attr_u16(expected, ATTR_PORT_DST, htons(10241));
+
+	mask = nfct_new();
+	if (!mask) {
+		perror("nfct_new");
+		nfct_destroy(master);
+		nfct_destroy(expected);
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(mask, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(mask, ATTR_IPV4_SRC, 0xffffffff);
+	nfct_set_attr_u32(mask, ATTR_IPV4_DST, 0xffffffff);
+
+	nfct_set_attr_u8(mask, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(mask, ATTR_PORT_SRC, 0x0000);
+	nfct_set_attr_u16(mask, ATTR_PORT_DST, 0xffff);
+
+	/*
+	 * Step 2: Setup expectation
+	 */
+
+	exp = nfexp_new();
+	if (!exp) {
+		perror("nfexp_new");
+		nfct_destroy(master);
+		nfct_destroy(expected);
+		nfct_destroy(mask);
+		exit(EXIT_FAILURE);
+	}
+
+	nfexp_set_attr(exp, ATTR_EXP_MASTER, master);
+	nfexp_set_attr(exp, ATTR_EXP_EXPECTED, expected);
+	nfexp_set_attr(exp, ATTR_EXP_MASK, mask);
+	nfexp_set_attr_u32(exp, ATTR_EXP_TIMEOUT, 200);
+
+	nfct_destroy(master);
+	nfct_destroy(expected);
+	nfct_destroy(mask);
+
+	h = nfct_open(EXPECT, 0);
+	if (!h) {
+		perror("nfct_open");
+		return -1;
+	}
+
+	ret = nfexp_query(h, NFCT_Q_CREATE, exp);
+
+	printf("TEST: create expectation ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/expect_delete.c b/utils/expect_delete.c
new file mode 100644
index 0000000..21e4a03
--- /dev/null
+++ b/utils/expect_delete.c
@@ -0,0 +1,59 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *expected;
+	struct nf_expect *exp;
+
+	expected = nfct_new();
+	if (!expected) {
+		perror("nfct_new");
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(expected, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(expected, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(expected, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+
+	nfct_set_attr_u8(expected, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(expected, ATTR_PORT_SRC, 0);
+	nfct_set_attr_u16(expected, ATTR_PORT_DST, htons(10241));
+
+	exp = nfexp_new();
+	if (!exp) {
+		perror("nfexp_new");
+		nfct_destroy(expected);
+		exit(EXIT_FAILURE);
+	}
+
+	nfexp_set_attr(exp, ATTR_EXP_EXPECTED, expected);
+
+	h = nfct_open(EXPECT, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(expected);
+		return -1;
+	}
+
+	ret = nfexp_query(h, NFCT_Q_DESTROY, exp);
+
+	printf("TEST: delete expectation ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	nfct_destroy(expected);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/expect_dump.c b/utils/expect_dump.c
new file mode 100644
index 0000000..d80c4c8
--- /dev/null
+++ b/utils/expect_dump.c
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+static int cb(enum nf_conntrack_msg_type type,
+	      struct nf_expect *exp,
+	      void *data)
+{
+	char buf[1024];
+
+	nfexp_snprintf(buf, 1024, exp, NFCT_T_UNKNOWN, NFCT_O_DEFAULT, 0);
+	printf("%s\n", buf);
+
+	return NFCT_CB_CONTINUE;
+}
+
+int main(void)
+{
+	int ret;
+	uint8_t family = AF_INET;
+	struct nfct_handle *h;
+
+	h = nfct_open(EXPECT, 0);
+	if (!h) {
+		perror("nfct_open");
+		return -1;
+	}
+
+	nfexp_callback_register(h, NFCT_T_ALL, cb, NULL);
+	ret = nfexp_query(h, NFCT_Q_DUMP, &family);
+
+	printf("TEST: dumo expectation ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/expect_events.c b/utils/expect_events.c
new file mode 100644
index 0000000..03161b9
--- /dev/null
+++ b/utils/expect_events.c
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+static int event_cb(enum nf_conntrack_msg_type type,
+		    struct nf_expect *exp,
+		    void *data)
+{
+	static int n = 0;
+	char buf[1024];
+
+	nfexp_snprintf(buf, 1024, exp, type, NFCT_O_XML, 0);
+	printf("%s\n", buf);
+
+	if (++n == 10)
+		return NFCT_CB_STOP;
+
+	return NFCT_CB_CONTINUE;
+}
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+
+	h = nfct_open(EXPECT, NF_NETLINK_CONNTRACK_EXP_NEW |
+			      NF_NETLINK_CONNTRACK_EXP_UPDATE |
+			      NF_NETLINK_CONNTRACK_EXP_DESTROY);
+	if (!h) {
+		perror("nfct_open");
+		return -1;
+	}
+
+	nfexp_callback_register(h, NFCT_T_ALL, event_cb, NULL);
+
+	printf("TEST: waiting for 10 expectation events...\n");
+
+	ret = nfexp_catch(h);
+
+	printf("TEST: expectation events ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/expect_flush.c b/utils/expect_flush.c
new file mode 100644
index 0000000..8a4897f
--- /dev/null
+++ b/utils/expect_flush.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+int main(void)
+{
+	int ret;
+	uint8_t family = AF_INET;
+	struct nfct_handle *h;
+
+	h = nfct_open(EXPECT, 0);
+	if (!h) {
+		perror("nfct_open");
+		return -1;
+	}
+
+	ret = nfexp_query(h, NFCT_Q_FLUSH, &family);
+
+	printf("TEST: flush expectations ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}
diff --git a/utils/expect_get.c b/utils/expect_get.c
new file mode 100644
index 0000000..c426cf3
--- /dev/null
+++ b/utils/expect_get.c
@@ -0,0 +1,72 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+static int cb(enum nf_conntrack_msg_type type,
+	      struct nf_expect *exp,
+	      void *data)
+{
+	char buf[1024];
+
+	nfexp_snprintf(buf, 1024, exp, NFCT_T_UNKNOWN, NFCT_O_DEFAULT, 0);
+	printf("%s\n", buf);
+
+	return NFCT_CB_CONTINUE;
+}
+
+int main(void)
+{
+	int ret;
+	struct nfct_handle *h;
+	struct nf_conntrack *master;
+	struct nf_expect *exp;
+
+	master = nfct_new();
+	if (!master) {
+		perror("nfct_new");
+		exit(EXIT_FAILURE);
+	}
+
+	nfct_set_attr_u8(master, ATTR_L3PROTO, AF_INET);
+	nfct_set_attr_u32(master, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+	nfct_set_attr_u32(master, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+
+	nfct_set_attr_u8(master, ATTR_L4PROTO, IPPROTO_TCP);
+	nfct_set_attr_u16(master, ATTR_PORT_SRC, htons(10240));
+	nfct_set_attr_u16(master, ATTR_PORT_DST, htons(10241));
+
+	exp = nfexp_new();
+	if (!exp) {
+		perror("nfexp_new");
+		nfct_destroy(master);
+		exit(EXIT_FAILURE);
+	}
+
+	nfexp_set_attr(exp, ATTR_EXP_MASTER, master);
+
+	h = nfct_open(EXPECT, 0);
+	if (!h) {
+		perror("nfct_open");
+		nfct_destroy(master);
+		return -1;
+	}
+
+	nfexp_callback_register(h, NFCT_T_ALL, cb, NULL);
+	ret = nfexp_query(h, NFCT_Q_GET, exp);
+
+	printf("TEST: get expectation ");
+	if (ret == -1)
+		printf("(%d)(%s)\n", ret, strerror(errno));
+	else
+		printf("(OK)\n");
+
+	nfct_close(h);
+
+	nfct_destroy(master);
+
+	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
+}