131 lines
5.8 KiB
C
131 lines
5.8 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*****************************************************************************
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Version 0.1
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Date 2012/09/27
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Product NAS stack
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Subsystem EPS Mobility Management
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Author Frederic Maurel, Sebastien Roux
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Description Defines identifiers of the EPS Mobility Management messages.
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*****************************************************************************/
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#ifndef __EMM_MSGDEF_H__
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#define __EMM_MSGDEF_H__
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#include <stdint.h>
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#include <asm/byteorder.h>
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/****************************************************************************/
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/********************* G L O B A L C O N S T A N T S *******************/
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/****************************************************************************/
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/* Header length boundaries of EPS Mobility Management messages */
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#define EMM_HEADER_LENGTH sizeof(emm_msg_header_t)
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#define EMM_HEADER_MINIMUM_LENGTH EMM_HEADER_LENGTH
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#define EMM_HEADER_MAXIMUM_LENGTH EMM_HEADER_LENGTH
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/* EPS Mobility Management Security header type */
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#define SECURITY_HEADER_TYPE_NOT_PROTECTED 0b0000
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#define SECURITY_HEADER_TYPE_INTEGRITY_PROTECTED 0b0001
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#define SECURITY_HEADER_TYPE_INTEGRITY_PROTECTED_CYPHERED 0b0010
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#define SECURITY_HEADER_TYPE_INTEGRITY_PROTECTED_NEW 0b0011
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#define SECURITY_HEADER_TYPE_INTEGRITY_PROTECTED_CYPHERED_NEW 0b0100
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#define SECURITY_HEADER_TYPE_SERVICE_REQUEST 0b1100
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/* Message identifiers for EPS Mobility Management */
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# define ATTACH_REQUEST 0b01000001 /* 65 = 0x41 */
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# define ATTACH_ACCEPT 0b01000010 /* 66 = 0x42 */
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# define ATTACH_COMPLETE 0b01000011 /* 67 = 0x43 */
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# define ATTACH_REJECT 0b01000100 /* 68 = 0x44 */
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# define DETACH_REQUEST 0b01000101 /* 69 = 0x45 */
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# define DETACH_ACCEPT 0b01000110 /* 70 = 0x46 */
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# define TRACKING_AREA_UPDATE_REQUEST 0b01001000 /* 72 = 0x48 */
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# define TRACKING_AREA_UPDATE_ACCEPT 0b01001001 /* 73 = 0x49 */
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# define TRACKING_AREA_UPDATE_COMPLETE 0b01001010 /* 74 = 0x4a */
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# define TRACKING_AREA_UPDATE_REJECT 0b01001011 /* 75 = 0x4b */
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# define EXTENDED_SERVICE_REQUEST 0b01001100 /* 76 = 0x4c */
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# define SERVICE_REJECT 0b01001110 /* 78 = 0x4e */
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# define GUTI_REALLOCATION_COMMAND 0b01010000 /* 80 = 0x50 */
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# define GUTI_REALLOCATION_COMPLETE 0b01010001 /* 81 = 0x51 */
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# define AUTHENTICATION_REQUEST 0b01010010 /* 82 = 0x52 */
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# define AUTHENTICATION_RESPONSE 0b01010011 /* 83 = 0x53 */
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# define AUTHENTICATION_REJECT 0b01010100 /* 84 = 0x54 */
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# define AUTHENTICATION_FAILURE 0b01011100 /* 92 = 0x5c */
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# define IDENTITY_REQUEST 0b01010101 /* 85 = 0x55 */
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# define IDENTITY_RESPONSE 0b01010110 /* 86 = 0x56 */
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# define SECURITY_MODE_COMMAND 0b01011101 /* 93 = 0x5d */
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# define SECURITY_MODE_COMPLETE 0b01011110 /* 94 = 0x5e */
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# define SECURITY_MODE_REJECT 0b01011111 /* 95 = 0x5f */
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# define EMM_STATUS 0b01100000 /* 96 = 0x60 */
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# define EMM_INFORMATION 0b01100001 /* 97 = 0x61 */
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# define DOWNLINK_NAS_TRANSPORT 0b01100010 /* 98 = 0x62 */
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# define UPLINK_NAS_TRANSPORT 0b01100011 /* 99 = 0x63 */
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# define CS_SERVICE_NOTIFICATION 0b01100100 /* 100 = 0x64 */
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/*
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* Message identifiers for EMM messages that does not follow the structure
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* of a standard layer 3 message
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*/
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# define SERVICE_REQUEST 0b01001101 /* TODO: TBD - 77 = 0x4d */
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/****************************************************************************/
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/************************ G L O B A L T Y P E S ************************/
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/****************************************************************************/
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/*
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* Header of EPS Mobility Management plain NAS message
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* ---------------------------------------------------
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* 8 7 6 5 4 3 2 1
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* +-----------------------+------------------------+
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* | Security header type | Protocol discriminator |
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* +-----------------------+------------------------+
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* | Message type |
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* +-----------------------+------------------------+
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*/
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typedef struct {
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#ifdef __LITTLE_ENDIAN_BITFIELD
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uint8_t protocol_discriminator:4;
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uint8_t security_header_type:4;
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#endif
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#ifdef __BIG_ENDIAN_BITFIELD
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uint8_t security_header_type:4;
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uint8_t protocol_discriminator:4;
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#endif
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uint8_t message_type;
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} __attribute__((__packed__)) emm_msg_header_t;
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/****************************************************************************/
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/******************** G L O B A L V A R I A B L E S ********************/
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/****************************************************************************/
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/****************************************************************************/
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/****************** E X P O R T E D F U N C T I O N S ******************/
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/****************************************************************************/
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#endif /* __EMM_MSGDEF_H__ */
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