implemented IMC/IMV handler

2010-11-09 20:43:50 +01:00
parent 4da597631f
commit 1888dd6bd5
21 changed files with 1262 additions and 30 deletions
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2006 Mike McCauley
+ * Copyright (C) 2010 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 "tnc_imv.h"
+
+#include <dlfcn.h>
+
+#include <debug.h>
+#include <library.h>
+
+typedef struct private_tnc_imv_t private_tnc_imv_t;
+
+struct private_tnc_imv_t {
+
+	/**
+	 * Public members of imv_t.
+	 */
+	imv_t public;
+
+	/**
+	 * Name of loaded IMV
+	 */
+	char *name;
+
+	/**
+	 * ID of loaded IMV
+	 */
+	TNC_IMVID id;
+};
+
+METHOD(imv_t, get_id, TNC_IMVID,
+	private_tnc_imv_t *this)
+{
+	return this->id;
+}
+
+METHOD(imv_t, destroy, void,
+	private_tnc_imv_t *this)
+{
+	free(this->name);
+	free(this);
+}
+
+/**
+ * Described in header.
+ */
+imv_t* tnc_imv_create(char *name, char *filename, TNC_IMVID id)
+{
+	private_tnc_imv_t *this;
+	void *handle;
+
+	INIT(this,
+		.public = {
+			.get_id = _get_id,
+			.destroy = _destroy,
+        },
+	);
+
+	handle = dlopen(filename, RTLD_NOW);
+	if (handle == NULL)
+	{
+		DBG1(DBG_TNC, "IMV '%s' failed to load from '%s': %s",
+					   name, filename, dlerror());
+		free(this);
+		return NULL;
+	}
+
+	/* we do not store or free dlopen() handles, leak_detective requires
+	 * the modules to keep loaded until leak report */
+
+	this->public.initialize = dlsym(handle, "TNC_IMV_Initialize");
+	if (!this->public.initialize)
+    {
+		DBG1(DBG_TNC, "could not resolve TNC_IMV_Initialize in %s: %s\n",
+					   filename, dlerror());
+		free(this);
+		return NULL;
+	}
+	this->public.notify_connection_change =
+						dlsym(handle, "TNC_IMV_NotifyConnectionChange");
+    this->public.solicit_recommendation =
+						dlsym(handle, "TNC_IMV_SolicitRecommendation");
+	if (!this->public.solicit_recommendation)
+    {
+		DBG1(DBG_TNC, "could not resolve TNC_IMV_SolicitRecommendation in %s: %s\n",
+					   filename, dlerror());
+		free(this);
+		return NULL;
+	}
+    this->public.receive_message = 
+						dlsym(handle, "TNC_IMV_ReceiveMessage");
+    this->public.batch_ending =
+						dlsym(handle, "TNC_IMV_BatchEnding");
+    this->public.terminate =
+						dlsym(handle, "TNC_IMV_Terminate");
+    this->public.provide_bind_function =
+						dlsym(handle, "TNC_IMV_ProvideBindFunction");
+    if (!this->public.provide_bind_function)
+	{
+		DBG1(DBG_TNC, "could not resolve TNC_IMV_ProvideBindFunction in %s: %s\n",
+					  filename, dlerror());
+		free(this);
+		return NULL;
+	}
+	DBG2(DBG_TNC, "IMV '%s' loaded successfully with ID %u", name, id);
+	this->name = strdup(name);
+	this->id = id;
+
+	return &this->public;
+}
+