add userspace library (Jens Götze)

4 files changed, 1424 insertions, 0 deletions

diff --git a/userspace/libebtc/include/Makefile.am b/userspace/libebtc/include/Makefile.am
new file mode 100644
index 0000000..1a9972c
--- /dev/null
+++ b/userspace/libebtc/include/Makefile.am
@@ -0,0 +1,43 @@
+#
+# ==[ Makefile ]================================================================
+#
+#  Project
+#
+#      Library for ethernet bridge tables.
+#
+#
+#  Description
+#
+#      Process this file with automake to create Makefile.in
+#
+#
+#  Copyright
+#
+#      Copyright 2005 by Jens Götze
+#      All rights reserved.
+#
+#      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., 59 Temple Place, Suite 330, Boston, MA  02111-1307,
+#      USA.
+#
+#
+# ==============================================================================
+#
+
+
+MAINTAINERCLEANFILES        = Makefile.in
+
+include_HEADERS             = libebtc.h
+
+
diff --git a/userspace/libebtc/include/Makefile.in b/userspace/libebtc/include/Makefile.in
new file mode 100644
index 0000000..4d65b8a
--- /dev/null
+++ b/userspace/libebtc/include/Makefile.in
@@ -0,0 +1,450 @@
+# Makefile.in generated by automake 1.9.3 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004  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,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# ==[ Makefile ]================================================================
+#
+#  Project
+#
+#      Library for ethernet bridge tables.
+#
+#
+#  Description
+#
+#      Process this file with automake to create Makefile.in
+#
+#
+#  Copyright
+#
+#      Copyright 2005 by Jens Götze
+#      All rights reserved.
+#
+#      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., 59 Temple Place, Suite 330, Boston, MA  02111-1307,
+#      USA.
+#
+#
+# ==============================================================================
+#
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
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+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
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+host_triplet = @host@
+subdir = include
+DIST_COMMON = $(include_HEADERS) $(srcdir)/Makefile.am \
+	$(srcdir)/Makefile.in $(srcdir)/config.h.in
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+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+EBTC_LT_AGE = @EBTC_LT_AGE@
+EBTC_LT_CURRENT = @EBTC_LT_CURRENT@
+EBTC_LT_REVISION = @EBTC_LT_REVISION@
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+host_os = @host_os@
+host_vendor = @host_vendor@
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+libexecdir = @libexecdir@
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+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+MAINTAINERCLEANFILES = Makefile.in
+include_HEADERS = libebtc.h
+all: config.h
+	$(MAKE) $(AM_MAKEFLAGS) all-am
+
+.SUFFIXES:
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+	  case '$(am__configure_deps)' in \
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+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu  include/Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu  include/Makefile
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+config.h: stamp-h1
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+	  $(MAKE) stamp-h1; \
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+
+stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
+	@rm -f stamp-h1
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+	cd $(top_srcdir) && $(AUTOHEADER)
+	rm -f stamp-h1
+	touch $@
+
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+	test -z "$(includedir)" || $(mkdir_p) "$(DESTDIR)$(includedir)"
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+
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+	@$(NORMAL_UNINSTALL)
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+	list='$(DISTFILES)'; for file in $$list; do \
+	  case $$file in \
+	    $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
+	    $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
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+	    || cp -p $$d/$$file $(distdir)/$$file \
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+	  fi; \
+	done
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+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
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+clean-generic:
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+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
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+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+uninstall-am: uninstall-includeHEADERS uninstall-info-am
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diff --git a/userspace/libebtc/include/config.h.in b/userspace/libebtc/include/config.h.in
new file mode 100644
index 0000000..6bb299b
--- /dev/null
+++ b/userspace/libebtc/include/config.h.in
@@ -0,0 +1,93 @@
+/* include/config.h.in.  Generated from configure.in by autoheader.  */
+
+/* Define to 1 if you have the `close' function. */
+#undef HAVE_CLOSE
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the `free' function. */
+#undef HAVE_FREE
+
+/* Define to 1 if you have the `getsockopt' function. */
+#undef HAVE_GETSOCKOPT
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the <linux/netfilter_bridge/ebtables.h> header
+   file. */
+#undef HAVE_LINUX_NETFILTER_BRIDGE_EBTABLES_H
+
+/* Define to 1 if you have the `malloc' function. */
+#undef HAVE_MALLOC
+
+/* Define to 1 if you have the `memcpy' function. */
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+
+/* Define to 1 if you have the <memory.h> header file. */
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+/* Define to 1 if you have the `memset' function. */
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+
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+#undef HAVE_SETSOCKOPT
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+/* Define to 1 if you have the `snprintf' function. */
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+
+/* Define to 1 if you have the `socket' function. */
+#undef HAVE_SOCKET
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the `strcmp' function. */
+#undef HAVE_STRCMP
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
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+/* Define to 1 if you have the <sys/types.h> header file. */
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+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Version number of package */
+#undef VERSION
+
+/* Define to 1 if your processor stores words with the most significant byte
+   first (like Motorola and SPARC, unlike Intel and VAX). */
+#undef WORDS_BIGENDIAN
diff --git a/userspace/libebtc/include/libebtc.h b/userspace/libebtc/include/libebtc.h
new file mode 100644
index 0000000..7c12b14
--- /dev/null
+++ b/userspace/libebtc/include/libebtc.h
@@ -0,0 +1,838 @@
+/*
+ * ==[ FILENAME: libebtc.h ]====================================================
+ *
+ *  Project
+ *
+ *      Library for ethernet bridge tables.
+ *
+ *
+ *  Description
+ *
+ *      See project.
+ *
+ *
+ *  Copyright
+ *
+ *      Copyright 2005 by Jens Götze
+ *      All rights reserved.
+ *
+ *      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., 59 Temple Place, Suite 330, Boston, MA  02111-1307,
+ *      USA.
+ *
+ *
+ * =============================================================================
+ */
+
+
+#ifndef __LIB_EBTC_H__
+#define __LIB_EBTC_H__ 1
+
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <linux/netfilter_bridge/ebtables.h>
+
+
+/* Macros */
+
+#ifndef EBTC_MIN_ALIGN
+#  define EBTC_MIN_ALIGN                (__alignof__(struct ebt_entry_target))
+#endif
+#define EBTC_ALIGN(s)                   (((s) + (EBTC_MIN_ALIGN - 1)) & \
+                                         ~(EBTC_MIN_ALIGN - 1))
+
+#define EBTC_SIZEOF(a)                  EBTC_ALIGN(sizeof(a))
+#define EBTC_NEXT(a)                    ((char *)(a) + EBTC_ALIGN(sizeof(*(a))))
+#define EBTC_ADDOFFSET(a, b)            ((char *)(a) + (b))
+
+#define EBTC_INIT                       0x0000
+#define EBTC_INIT_WITHFLUSH             0x0001
+
+#define EBTC_FALSE                      -1
+#define EBTC_TRUE                       0
+
+
+/* Types */
+
+typedef struct ebtc_handle_st *ebtc_handle_t;
+
+typedef struct ebt_replace ebt_replace_t;
+
+typedef struct ebt_entries ebt_entries_t;
+
+typedef struct ebt_entry ebt_entry_t;
+
+typedef struct ebt_counter ebt_counter_t;
+
+typedef struct ebt_entry_target ebt_entry_target_t;
+
+typedef struct ebt_standard_target ebt_standard_target_t;
+
+
+/* Functions */
+
+/*
+ * ==[ FUNCTION: ebtc_is_chain ]================================================
+ *
+ *  Description
+ *
+ *      ebtc_is_chain checks chainname for exist.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      I   handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_is_chain (const char *chainname, const ebtc_handle_t handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_first_chain ]=============================================
+ *
+ *  Description
+ *
+ *      ebtc_first_chain returns the first chain.
+ *
+ *
+ *  Parameter
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns NULL if it end of list, or non-zero for pointer of chainname.
+ *
+ *
+ * =============================================================================
+ */
+extern const char *ebtc_first_chain (ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_next_chain ]==============================================
+ *
+ *  Description
+ *
+ *      ebtc_next_chain returns the next chain.
+ *
+ *
+ *  Parameter
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns NULL if it end of list, or non-zero for pointer of chainname.
+ *
+ *
+ * =============================================================================
+ */
+extern const char *ebtc_next_chain (ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_first_rule ]==============================================
+ *
+ *  Description
+ *
+ *      ebtc_first_rule returns the first rule in chain.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns NULL if it end of list, or non-zero for pointer of entry.
+ *
+ *
+ * =============================================================================
+ */
+extern const struct ebt_entry *ebtc_first_rule (const char *chainname,
+                                                ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_next_rule ]===============================================
+ *
+ *  Description
+ *
+ *      ebtc_next_rule returns the next rule in chain.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns NULL if it end of list, or non-zero for pointer of entry.
+ *
+ *
+ * =============================================================================
+ */
+extern const struct ebt_entry *ebtc_next_rule (const char *chainname,
+                                               ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_get_target ]==============================================
+ *
+ *  Description
+ *
+ *      ebtc_get_target returns target of an rule.
+ *
+ *
+ *  Parameter
+ *
+ *      I   entry
+ *              Pointer to an ebt_entry object with target.
+ *
+ *      I   handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns NULL if it end of list, or non-zero for pointer of entry.
+ *
+ *
+ * =============================================================================
+ */
+extern const char *ebtc_get_target (const struct ebt_entry *entry,
+                                    const ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_is_builtin ]==============================================
+ *
+ *  Description
+ *
+ *      ebtc_is_builtin checks a chainname for built-in chain.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      I   handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it's a built-in chain, or non-zero for a non built-in
+ *      chain.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_is_builtin (const char *chainname, const ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_set_policy ]==============================================
+ *
+ *  Description
+ *
+ *      ebtc_set_policy set policy of a chain.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      I   policy
+ *              C-String with policy (ACCEPT, DROP, CONTINUE or RETURN).
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_set_policy (const char *chainname, const char *policy,
+                            ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_get_policy ]==============================================
+ *
+ *  Description
+ *
+ *      ebtc_get_policy get policy of a chain.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      I   handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns a c-ctring with policy (ACCEPT, DROP, CONTINUE or RETURN).
+ *
+ *
+ * =============================================================================
+ */
+extern const char *ebtc_get_policy (const char *chainname,
+                                    const ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_insert_entry ]============================================
+ *
+ *  Description
+ *
+ *      ebtc_insert_entry insert a entry. You find details for the entry-object
+ *      in linux/netfilter_bridge/ebtables.h.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      I   entry
+ *              Pointer for a entry-object.
+ *
+ *      I   rulenum
+ *              Position of new rule.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_insert_entry (const char *chainname,
+                              const struct ebt_entry *entry,
+                              unsigned int rulenum, ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_replace_entry ]===========================================
+ *
+ *  Description
+ *
+ *      ebtc_replace_entry replace a entry. You find details for the entry-object
+ *      in linux/netfilter_bridge/ebtables.h.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      I   entry
+ *              Pointer for the new entry-object.
+ *
+ *      I   rulenum
+ *              Position of new rule.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_replace_entry (const char *chainname,
+                               const struct ebt_entry *entry,
+                               unsigned int rulenum, ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_append_entry ]============================================
+ *
+ *  Description
+ *
+ *      ebtc_append_entry append a entry. You find details for the entry-object
+ *      in linux/netfilter_bridge/ebtables.h.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      I   entry
+ *              Pointer for a entry-object.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_append_entry (const char *chainname,
+                              const struct ebt_entry *entry,
+                              ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_delete_entry ]============================================
+ *
+ *  Description
+ *
+ *      ebtc_append_entry delete a entry.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      I   rulenum
+ *              Position of rule.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_delete_entry (const char *chainname, unsigned int rulenum,
+                              ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_target_jumptochain ]======================================
+ *
+ *  Description
+ *
+ *      ebtc_target_jumptochain initialize standard target for jump to a chain.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_target_jumptochain (ebt_standard_target_t *target,
+                                    char *chainname, ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_flush_entries ]===========================================
+ *
+ *  Description
+ *
+ *      ebtc_flush_entries flush all entries in a chain.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_flush_entries (const char *chainname, ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_zero_entries ]============================================
+ *
+ *  Description
+ *
+ *      ebtc_zero_entries set all counter in a chain to zero.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_zero_entries (const char *chainname, ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_rename_chain ]============================================
+ *
+ *  Description
+ *
+ *      ebtc_rename_chain rename a chain. A built-in chain returns an error.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname_old
+ *              C-String with chainname.
+ *
+ *      I   chainname_new
+ *              C-String with chainname.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_rename_chain (const char *chainname_old,
+                              const char *chainname_new, ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_create_chain ]============================================
+ *
+ *  Description
+ *
+ *      ebtc_create_chain create a chain.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_create_chain (const char *chainname, ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_delete_chain ]============================================
+ *
+ *  Description
+ *
+ *      ebtc_delete_chain delete a chain. A built-in chain returns a error.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_delete_chain (const char *chainname, ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_read_counter ]============================================
+ *
+ *  Description
+ *
+ *      ebtc_read_counter returns the current counter for packet and bytes.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with name of chain.
+ *
+ *      I   rulenum
+ *              Position of rule.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns NULL for an error, or non-zero for the counter.
+ *
+ *
+ * =============================================================================
+ */
+extern const struct ebt_counter *ebtc_read_counter (const char *chainname, 
+                                                    unsigned int rulenum,
+                                                    ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_zero_counter ]============================================
+ *
+ *  Description
+ *
+ *      ebtc_zero_counter set counter of a rule to zero.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      I   rulenum
+ *              Postion of rule.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_zero_counter (const char *chainname, unsigned int rulenum,
+                              ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_set_counter ]=============================================
+ *
+ *  Description
+ *
+ *      ebtc_set_counter set counter to a specific value.
+ *
+ *
+ *  Parameter
+ *
+ *      I   chainname
+ *              C-String with chainname.
+ *
+ *      I   rulenum
+ *              Postion of rule.
+ *
+ *      I   counters
+ *              New counter value.
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_set_counter (const char *chainname, unsigned int rulenum,
+                             const struct ebt_counter *counters,
+                             ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_init ]====================================================
+ *
+ *  Description
+ *
+ *      ebtc_init create a new handle for the tablename.
+ *
+ *
+ *  Parameter
+ *
+ *      I   tablename
+ *              C-String with name of table.
+ *
+ *      I   options
+ *              Options, look at macros with the prefix "EBTC_INIT".
+ *
+ *
+ *  Return value
+ *
+ *      Returns NULL for an error, or non-zero for the handle.
+ *
+ *
+ * =============================================================================
+ */
+extern ebtc_handle_t ebtc_init (const char *tablename, int options);
+
+
+/*
+ * ==[ FUNCTION: ebtc_commit ]==================================================
+ *
+ *  Description
+ *
+ *      ebtc_commit submit all changes to kernel. After the submit, handle is
+ *      freed.
+ *
+ *
+ *  Parameter
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns 0 if it succeeds, or non-zero for an error.
+ *
+ *
+ * =============================================================================
+ */
+extern int ebtc_commit (ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_free ]====================================================
+ *
+ *  Description
+ *
+ *      ebtc_free free a handle.
+ *
+ *
+ *  Parameter
+ *
+ *      IO  handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns nothing.
+ *
+ *
+ * =============================================================================
+ */
+extern void ebtc_free (ebtc_handle_t *handle);
+
+
+/*
+ * ==[ FUNCTION: ebtc_strerror ]================================================
+ *
+ *  Description
+ *
+ *      ebtc_strerror translate error id to a human readable message. If no
+ *      handle exist (ebtc_init or ebtc_free return an error), use NULL. With
+ *      option used ebtc_strerror an global variable. hint, in a
+ *      multi-threading environment can return this method a wrong message.
+ *
+ *
+ *  Parameter
+ *
+ *      I   handle
+ *              EBTables handle
+ *
+ *
+ *  Return value
+ *
+ *      Returns NULL if message not exist, or non-zero for the message.
+ *
+ *
+ * =============================================================================
+ */
+extern const char *ebtc_strerror (const ebtc_handle_t *handle);
+
+
+#endif
+
+