Define VICI protocol versions

src/libcharon/plugins/vici/Makefile.am

@@ -14,6 +14,7 @@ plugin_LTLIBRARIES = libstrongswan-vici.la
 endif
 
 libstrongswan_vici_la_SOURCES = \
+	vici_version.c vici_version.h \
 	vici_socket.h vici_socket.c \
 	vici_message.h vici_message.c \
 	vici_builder.h vici_builder.c \
@@ -38,6 +39,7 @@ ipseclib_LTLIBRARIES = libvici.la
 libvici_la_SOURCES = \
 	vici_message.c vici_message.h \
 	vici_builder.c vici_builder.h \
+	vici_version.c vici_version.h \
 	libvici.c libvici.h
 
 libvici_la_LIBADD = $(top_builddir)/src/libstrongswan/libstrongswan.la

src/libcharon/plugins/vici/libvici.c

@@ -2,6 +2,9 @@
  * Copyright (C) 2014 Martin Willi
  * Copyright (C) 2014 revosec AG
  *
+ * Copyright (C) 2015 Andreas Steffen
+ * HSR Hochschule fuer Technik Rapperswil
+ *
  * 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
@@ -17,6 +20,7 @@
 #include "vici_builder.h"
 #include "vici_dispatcher.h"
 #include "vici_socket.h"
+#include "vici_version.h"
 
 #include <library.h>
 #include <threading/mutex.h>
@@ -329,6 +333,11 @@ void vici_add_key_valuef(vici_req_t *req, char *key, char *fmt, ...)
 	va_end(args);
 }
 
+void vici_add_version(vici_req_t *req, vici_version_t version)
+{
+	vici_add_key_valuef(req, "vici", "%N", vici_version_names, version);
+}
+
 void vici_begin_list(vici_req_t *req, char *name)
 {
 	req->b->add(req->b, VICI_LIST_START, name);

src/libcharon/plugins/vici/libvici.h

@@ -2,6 +2,9 @@
  * Copyright (C) 2014 Martin Willi
  * Copyright (C) 2014 revosec AG
  *
+ * Copyright (C) 2015 Andreas Steffen
+ * HSR Hochschule fuer Technik Rapperswil
+
  * libvici.h is MIT-licensed to simplify reuse, but please note that libvici.c
  * is not, as it depends on the GPLv2 licensed libstrongswan.
  *
@@ -86,6 +89,21 @@
 
 #include <stdio.h>
 
+/**
+ * Vici versions
+ */
+typedef enum {
+	/** default version if vici key/value pair is missing in message */
+	VICI_1_0,
+	/** current version, vici key/value pair is explicitly sent in message */
+	VICI_2_0,
+} vici_version_t;
+
+/**
+ * Current vici version
+ */
+#define VICI_VERSION	VICI_2_0
+
 /**
  * Opaque vici connection contex.
  */
@@ -219,6 +237,14 @@ void vici_add_key_value(vici_req_t *req, char *key, void *buf, int len);
  */
 void vici_add_key_valuef(vici_req_t *req, char *key, char *fmt, ...);
 
+/**
+ * Add a vici version key/value pair  (not not needed for VICI 1.0)
+ *
+ * @param req		request message to add vici version key/value pair to
+ * @param version	vici version
+ */
+void vici_add_version(vici_req_t *req, vici_version_t version);
+
 /**
  * Begin a list in a request message.
  *

src/libcharon/plugins/vici/vici_version.c

@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2015 Andreas Steffen
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+#include "vici_version.h"
+
+ENUM(vici_version_names, VICI_1_0, VICI_2_0,
+	"1.0",
+	"2.0"
+);

src/libcharon/plugins/vici/vici_version.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2015 Andreas Steffen
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+/**
+ * @defgroup vici_version vici_version
+ * @{ @ingroup vici
+ */
+
+#ifndef VICI_VERSION_H_
+#define VICI_VERSION_H_
+
+#include "libvici.h"
+
+#include <utils/utils.h>
+
+extern enum_name_t *vici_version_names;
+
+#endif /** VICI_VERSION_H_ @}*/