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Change-Id: I6a4444e3c193dae437cd7929f4c39aba7b749efa
diff --git a/include/freeDiameter/extension.h b/include/freeDiameter/extension.h
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+/*********************************************************************************************************
+* Software License Agreement (BSD License) *
+* Author: Sebastien Decugis <sdecugis@freediameter.net> *
+* *
+* Copyright (c) 2013, WIDE Project and NICT *
+* All rights reserved. *
+* *
+* Redistribution and use of this software in source and binary forms, with or without modification, are *
+* permitted provided that the following conditions are met: *
+* *
+* * Redistributions of source code must retain the above *
+* copyright notice, this list of conditions and the *
+* following disclaimer. *
+* *
+* * Redistributions in binary form must reproduce the above *
+* copyright notice, this list of conditions and the *
+* following disclaimer in the documentation and/or other *
+* materials provided with the distribution. *
+* *
+* * Neither the name of the WIDE Project or NICT nor the *
+* names of its contributors may be used to endorse or *
+* promote products derived from this software without *
+* specific prior written permission of WIDE Project and *
+* NICT. *
+* *
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
+* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
+* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
+* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
+* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
+*********************************************************************************************************/
+
+#ifndef _EXTENSION_H
+#define _EXTENSION_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Include definition of freeDiameter API */
+#include <freeDiameter/freeDiameter-host.h>
+#include <freeDiameter/libfdcore.h>
+
+/* Macro that define the entry point of the extension */
+#define EXTENSION_ENTRY(_name, _function, _depends...) \
+const char *fd_ext_depends[] = { _name , ## _depends , NULL }; \
+static int extension_loaded = 0; \
+int fd_ext_init(int major, int minor, char * conffile) { \
+ if ((major != FD_PROJECT_VERSION_MAJOR) \
+ || (minor != FD_PROJECT_VERSION_MINOR)) { \
+ TRACE_ERROR("This extension (" _name ") was compiled for a different version of freeDiameter."); \
+ TRACE_DEBUG(INFO, "daemon %d.%d != ext %d.%d", \
+ major, minor, \
+ FD_PROJECT_VERSION_MAJOR, FD_PROJECT_VERSION_MINOR); \
+ return EINVAL; \
+ } \
+ if (extension_loaded) { \
+ TRACE_ERROR("Extension (" _name ") cannot be loaded twice!"); \
+ return ENOTSUP; \
+ } \
+ LOG_N("Loading (" _name ") extension."); \
+ return (_function)(conffile); \
+}
+
+#define EXTENSION_ENTRY2(_name, _dictfunc, _rulesfunction, _depends...) \
+EXTENSION_ENTRY(_name, _dictfunc, ## _depends ) \
+int fd_ext_init2(int major, int minor, char * conffile) { \
+ if ((major != FD_PROJECT_VERSION_MAJOR) \
+ || (minor != FD_PROJECT_VERSION_MINOR)) { \
+ TRACE_ERROR("This extension (" _name ") was compiled for a different version of freeDiameter."); \
+ TRACE_DEBUG(INFO, "daemon %d.%d != ext %d.%d", \
+ major, minor, \
+ FD_PROJECT_VERSION_MAJOR, FD_PROJECT_VERSION_MINOR); \
+ return EINVAL; \
+ } \
+ if (extension_loaded) { \
+ TRACE_ERROR("Extension (" _name ") cannot be loaded twice!"); \
+ return ENOTSUP; \
+ } \
+ extension_loaded++; \
+ return (_rulesfunction)(conffile); \
+} \
+int fd_ext_parselocalrules(char *conffile) { \
+ return (_rulesfunction)(conffile); \
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _EXTENSION_H */
+
+#if 0
+static int dict_entry(char * conffile)
+{
+ int x = (_dictfunc)(conffile); \
+ if (x != 0) return x; \
+ return (_rulesfunction)(conffile); \
+}
+#endif