Added a hook to print received proposals, including number

2011-01-05 16:45:47 +01:00
parent b080f393ce
commit 5dca645d46
2 changed files with 94 additions and 1 deletions
@@ -6,7 +6,8 @@ conftest_SOURCES = conftest.c conftest.h config.c config.h actions.c actions.h \
 	hooks/hook.h hooks/ike_auth_fill.c hooks/unsort_message.c \
 	hooks/add_notify.c hooks/unencrypted_notify.c hooks/ignore_message.c \
 	hooks/add_payload.c hooks/set_critical.c hooks/force_cookie.c \
-	hooks/set_ike_version.c hooks/pretend_auth.c hooks/set_length.c
+	hooks/set_ike_version.c hooks/pretend_auth.c hooks/set_length.c \
+	hooks/log_proposals.c

 INCLUDES = \
 	-I$(top_srcdir)/src/libstrongswan \
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2010 Martin Willi
+ * Copyright (C) 2010 revosec AG
+ *
+ * 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 "hook.h"
+
+#include <encoding/payloads/sa_payload.h>
+
+typedef struct private_log_proposals_t private_log_proposals_t;
+
+/**
+ * Private data of an log_proposals_t object.
+ */
+struct private_log_proposals_t {
+
+	/**
+	 * Implements the hook_t interface.
+	 */
+	hook_t hook;
+};
+
+METHOD(listener_t, message, bool,
+	private_log_proposals_t *this, ike_sa_t *ike_sa, message_t *message,
+	bool incoming)
+{
+	if (incoming)
+	{
+		enumerator_t *enumerator, *proposals;
+		payload_t *payload;
+		linked_list_t *list;
+		sa_payload_t *sa;
+		proposal_t *proposal;
+
+		enumerator = message->create_payload_enumerator(message);
+		while (enumerator->enumerate(enumerator, &payload))
+		{
+			if (payload->get_type(payload) == SECURITY_ASSOCIATION)
+			{
+				sa = (sa_payload_t*)payload;
+				list = sa->get_proposals(sa);
+				DBG1(DBG_CFG, "received %d proposal%s:", list->get_count(list),
+					 list->get_count(list) == 1 ? "" : "s");
+				proposals = list->create_enumerator(list);
+				while (proposals->enumerate(proposals, &proposal))
+				{
+					DBG1(DBG_CFG, "  %d: %P",
+						 proposal->get_number(proposal), proposal);
+				}
+				proposals->destroy(proposals);
+				list->destroy_offset(list, offsetof(proposal_t, destroy));
+			}
+		}
+		enumerator->destroy(enumerator);
+	}
+	return TRUE;
+}
+
+METHOD(hook_t, destroy, void,
+	private_log_proposals_t *this)
+{
+	free(this);
+}
+
+/**
+ * Create the IKE_AUTH fill hook
+ */
+hook_t *log_proposals_hook_create(char *name)
+{
+	private_log_proposals_t *this;
+
+	INIT(this,
+		.hook = {
+			.listener = {
+				.message = _message,
+			},
+			.destroy = _destroy,
+		},
+	);
+
+	return &this->hook;
+}