renamed openair-cn to openair3

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2015-10-06 16:53:42 +00:00
parent c7518ecf42
commit 7b5431a62c
705 changed files with 206 additions and 208 deletions
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+/*
+ * Copyright (c) 2015, EURECOM (www.eurecom.fr)
+ * All rights reserved.
+ *
+ * Redistribution and use 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.
+ *
+ * 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.
+ *
+ * The views and conclusions contained in the software and documentation are those
+ * of the authors and should not be interpreted as representing official policies,
+ * either expressed or implied, of the FreeBSD Project.
+ */
+/*****************************************************************************
+
+Source      nas_message.h
+
+Version     0.1
+
+Date        2012/26/09
+
+Product     NAS stack
+
+Subsystem   Application Programming Interface
+
+Author      Frederic Maurel
+
+Description Defines the layer 3 messages supported by the NAS sublayer
+        protocol and functions used to encode and decode
+
+*****************************************************************************/
+#ifndef __NAS_MESSAGE_H__
+#define __NAS_MESSAGE_H__
+
+#include "commonDef.h"
+#include "emm_msg.h"
+#if defined(NAS_BUILT_IN_EPC)
+#include "emmData.h"
+#endif
+#include "esm_msg.h"
+
+/****************************************************************************/
+/*********************  G L O B A L    C O N S T A N T S  *******************/
+/****************************************************************************/
+
+#define NAS_MESSAGE_SECURITY_HEADER_SIZE    6
+
+/****************************************************************************/
+/************************  G L O B A L    T Y P E S  ************************/
+/****************************************************************************/
+
+/* Structure of security protected header */
+typedef struct {
+#ifdef __LITTLE_ENDIAN_BITFIELD
+  eps_protocol_discriminator_t    protocol_discriminator:4;
+  uint8_t                         security_header_type:4;
+#endif
+#ifdef __BIG_ENDIAN_BITFIELD
+  uint8_t security_header_type:4;
+  uint8_t protocol_discriminator:4;
+#endif
+  uint32_t message_authentication_code;
+  uint8_t sequence_number;
+} nas_message_security_header_t;
+
+/* Structure of plain NAS message */
+typedef union {
+  EMM_msg emm;    /* EPS Mobility Management messages */
+  ESM_msg esm;    /* EPS Session Management messages  */
+} nas_message_plain_t;
+
+/* Structure of security protected NAS message */
+typedef struct {
+  nas_message_security_header_t header;
+  nas_message_plain_t plain;
+} nas_message_security_protected_t;
+
+/*
+ * Structure of a layer 3 NAS message
+ */
+typedef union {
+  nas_message_security_header_t header;
+  nas_message_security_protected_t security_protected;
+  nas_message_plain_t plain;
+} nas_message_t;
+
+/****************************************************************************/
+/********************  G L O B A L    V A R I A B L E S  ********************/
+/****************************************************************************/
+
+/****************************************************************************/
+/******************  E X P O R T E D    F U N C T I O N S  ******************/
+/****************************************************************************/
+
+int nas_message_encrypt(
+  const char                          *inbuf,
+  char                                *outbuf,
+  const nas_message_security_header_t *header,
+  int                                  length,
+  void                                *security);
+
+int nas_message_decrypt(const char *inbuf,
+                        char                           *outbuf,
+                        nas_message_security_header_t  *header,
+                        int                             length,
+                        void                           *security);
+
+int nas_message_decode(
+  const char * const  buffer,
+  nas_message_t      *msg,
+  int                 length,
+  void               *security);
+
+int nas_message_encode(
+  char                       *buffer,
+  const nas_message_t * const msg,
+  int                         length,
+  void                       *security);
+
+#endif /* __NAS_MESSAGE_H__*/