Initial commit
Change-Id: I6a4444e3c193dae437cd7929f4c39aba7b749efa
diff --git a/extensions/app_diameap/libdiameap.h b/extensions/app_diameap/libdiameap.h
new file mode 100644
index 0000000..b459e29
--- /dev/null
+++ b/extensions/app_diameap/libdiameap.h
@@ -0,0 +1,187 @@
+/*****************************************************************************************************
+ * Software License Agreement (BSD License)
+ * Author : Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
+ *
+ * Copyright (c) 2009-2010, Souheil Ben Ayed, Teraoka Laboratory of Keio University, and the WIDE Project
+ * 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:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>.
+ *
+ * 4. Neither the name of Souheil Ben Ayed, Teraoka Laboratory of Keio University or the WIDE Project nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * 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 LIBDIAMEAP_H_
+#define LIBDIAMEAP_H_
+
+#include <freeDiameter/extension.h>
+
+#define DIAMEAP_EXTENSION "[DiamEAP extension] "
+
+#include "diameap_defs.h"
+#include "diameap_eappacket.h"
+#include "diameap_user.h"
+#include "diameap_mysql.h"
+
+#include <math.h>
+#include <dlfcn.h>
+
+
+/* authentication and authorization attributes */
+
+struct auth_attribute
+{
+ struct fd_list chain;
+ char * attrib;
+ char * op;
+ char * value;
+};
+
+struct avp_attribute
+{
+ struct fd_list chain;
+ char * attrib;
+ union avp_value value;
+ int tofree;
+};
+
+
+/************************************************/
+/* EAP Methods plugins */
+/************************************************/
+
+/* The register functions of an EAP method */
+struct register_plugin
+{
+ char * configure;
+ char * init;
+ char * initPickUp;
+ char * buildReq;
+ char * isDone;
+ char * process;
+ char * check;
+ char * getTimeout;
+ char * getKey;
+ char * unregister;
+ char * datafree;
+};
+
+struct eap_state_machine;
+/* List of plugins to load ( only EAP methods declared in the configuration file will be loaded) */
+struct plugin
+{
+ struct fd_list chain; /* link in the list */
+ u32 vendor; /* vendor*/
+ const char *methodname; /* name of the EAP method*/
+ eap_type methodtype; /* type number of the EAP method */
+ char *pluginfile; /* plugin filename */
+ char *conffile; /* optional configuration file name for the method */
+ void *handler; /* object returned by dlopen() */
+ int (*eap_method_configure)(char * configfile); /* (Optional) address of the eap_method_configure method */
+ int (*eap_method_init)(struct eap_state_machine *smd); /* address of the eap_method_init method */
+ int (*eap_method_initPickUp)(struct eap_state_machine *smd); /* address of the eap_method_initPickUp method */
+ int (*eap_method_buildReq)(struct eap_state_machine *smd,
+ u8 identifier,struct eap_packet * eapPacket); /* address of the eap_method_buildReq method */
+ int (*eap_method_getTimeout)(struct eap_state_machine *smd, int * timeout); /* address of the eap_method_getTimeout method */
+ boolean (*eap_method_check)(struct eap_state_machine *smd,
+ struct eap_packet * eapRespData); /* address of the eap_method_check method */
+ int (*eap_method_process)(struct eap_state_machine *smd,
+ struct eap_packet * eapRespData); /* address of the eap_method_process method */
+ boolean (*eap_method_isDone)(struct eap_state_machine *smd); /* address of the eap_method_isDone method */
+ int (*eap_method_getKey)(struct eap_state_machine *smd, u8 ** msk,int *msklength,
+ u8 ** emsk,int *emsklength); /* address of the eap_method_getKey method */
+ void (*eap_method_unregister)(void); /* (Optional) address of the eap_method_unregister method */
+ void (*eap_method_free)(void *); /* (Optional) address of the eap_method_datafree method */
+
+};
+
+
+/************************************************/
+/* EAP State Machine */
+/************************************************/
+
+/* EAP Policy Decision */
+typedef enum
+{
+ DECISION_FAILURE = 0, DECISION_SUCCESS = 1, DECISION_CONTINUE = 2
+} decision;
+
+typedef enum
+{
+ EAP_M_END, EAP_M_CONTINUE, EAP_M_PROPOSED
+} eap_method_state;
+
+/* EAP Backend Authenticator State Machine (RFC4137) */
+/* Most of variables are described in the part 6 of the RFC 4137 */
+/* */
+struct eap_state_machine
+{
+ /*Local state Machine Variables*/
+
+ /* Long-Term (Maintained between Packets) */
+ eap_type currentMethod;
+ u32 currentVendor;
+ int currentId;
+ int lastId;
+ void * methodData;
+ struct plugin *selectedMethod;
+ u8 NAKproposedMethods[251];
+
+ eap_method_state methodState;
+
+ struct eap_user user;
+
+ /* Short-Term (Not Maintained between exchanged Diameter EAP messages)*/
+ boolean rxResp;
+ int respId;
+ eap_type respMethod;
+ int respVendorMethod;
+ u32 respVendor;
+ decision sm_decision;
+ enum
+ {
+ EAP_INITIALIZE,
+ EAP_PICK_UP_METHOD,
+ EAP_IDLE,
+ EAP_RECEIVED,
+ EAP_SEND_REQUEST,
+ EAP_INTEGRITY_CHECK,
+ EAP_METHOD_REQUEST,
+ EAP_METHOD_RESPONSE,
+ EAP_PROPOSE_METHOD,
+ EAP_NAK,
+ EAP_SELECT_ACTION,
+ EAP_END,
+ EAP_DISCARD
+ } eap_state;
+
+};
+
+
+
+#endif /* LIBDIAMEAP_H_ */