Initial commit
Change-Id: I6a4444e3c193dae437cd7929f4c39aba7b749efa
diff --git a/extensions/dbg_rt/dbg_rt.c b/extensions/dbg_rt/dbg_rt.c
new file mode 100644
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--- /dev/null
+++ b/extensions/dbg_rt/dbg_rt.c
@@ -0,0 +1,106 @@
+/*********************************************************************************************************
+* 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. *
+*********************************************************************************************************/
+
+/*
+ * Debug-only extension for routing module;
+ * displays state information at the end of routing information process.
+ */
+#include <freeDiameter/extension.h>
+
+static struct fd_rt_fwd_hdl * fwd_hdl = NULL;
+static struct fd_rt_out_hdl * out_hdl = NULL;
+
+/* Proxying debug callback */
+static int dbgrt_fwd_cb(void * cbdata, struct msg ** msg)
+{
+ char * buf = NULL; size_t buflen;
+ TRACE_ENTRY("%p %p", cbdata, msg);
+
+ LOG_D("[dbg_rt] FWD routing message: %p", msg ? *msg : NULL);
+ if (msg) {
+ CHECK_MALLOC( fd_msg_dump_treeview(&buf, &buflen, NULL, *msg, NULL, 0, 1) );
+ LOG_D("%s", buf);
+ }
+ free(buf);
+ return 0;
+}
+
+/* Path selection debug callback */
+static int dbgrt_out_cb(void * cbdata, struct msg ** pmsg, struct fd_list * candidates)
+{
+ struct fd_list * li;
+ struct msg * msg = *pmsg;
+ char * buf = NULL; size_t buflen;
+
+ TRACE_ENTRY("%p %p %p", cbdata, msg, candidates);
+
+ LOG_D("[dbg_rt] OUT routing message: %p", msg);
+ CHECK_MALLOC( fd_msg_dump_treeview(&buf, &buflen, NULL, msg, NULL, 0, 1) );
+ LOG_D("%s", buf);
+ LOG_D("[dbg_rt] Current list of candidates (%p): (score - id)", msg);
+
+ for (li = candidates->next; li != candidates; li = li->next) {
+ struct rtd_candidate *c = (struct rtd_candidate *) li;
+ LOG_D("[dbg_rt] %d -\t%s", c->score, c->diamid);
+ }
+
+ return 0;
+}
+
+/* Register the callbacks to the daemon */
+static int dbgrt_main(char * conffile)
+{
+ TRACE_ENTRY("%p", conffile);
+
+ CHECK_FCT( fd_rt_fwd_register ( dbgrt_fwd_cb, NULL, RT_FWD_ALL, &fwd_hdl ) );
+ CHECK_FCT( fd_rt_out_register ( dbgrt_out_cb, NULL, -1 /* so that it is called late */, &out_hdl ) );
+
+ return 0;
+}
+
+/* Cleanup the callbacks */
+void fd_ext_fini(void)
+{
+ TRACE_ENTRY();
+
+ /* Unregister the modules */
+ CHECK_FCT_DO( fd_rt_fwd_unregister ( fwd_hdl, NULL ), /* continue */ );
+ CHECK_FCT_DO( fd_rt_out_unregister ( out_hdl, NULL ), /* continue */ );
+
+ return ;
+}
+
+/* Define the entry point function */
+EXTENSION_ENTRY("dbg_rt", dbgrt_main);