gauthier
7b5431a62c
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f
101 lines
4.3 KiB
C
101 lines
4.3 KiB
C
/*
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* Copyright (c) 2015, EURECOM (www.eurecom.fr)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are those
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* of the authors and should not be interpreted as representing official policies,
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* either expressed or implied, of the FreeBSD Project.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "ProtocolDiscriminator.h"
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#include "SecurityHeaderType.h"
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#include "MessageType.h"
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#include "NasSecurityAlgorithms.h"
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#include "NasKeySetIdentifier.h"
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#include "UeSecurityCapability.h"
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#include "ImeisvRequest.h"
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#include "Nonce.h"
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#ifndef NAS_SECURITY_MODE_COMMAND_H_
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#define NAS_SECURITY_MODE_COMMAND_H_
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/* Minimum length macro. Formed by minimum length of each mandatory field */
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#define SECURITY_MODE_COMMAND_MINIMUM_LENGTH ( \
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NAS_SECURITY_ALGORITHMS_MINIMUM_LENGTH + \
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NAS_KEY_SET_IDENTIFIER_MINIMUM_LENGTH + \
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UE_SECURITY_CAPABILITY_MINIMUM_LENGTH )
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/* Maximum length macro. Formed by maximum length of each field */
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#define SECURITY_MODE_COMMAND_MAXIMUM_LENGTH ( \
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NAS_SECURITY_ALGORITHMS_MAXIMUM_LENGTH + \
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NAS_KEY_SET_IDENTIFIER_MAXIMUM_LENGTH + \
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UE_SECURITY_CAPABILITY_MAXIMUM_LENGTH + \
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IMEISV_REQUEST_MAXIMUM_LENGTH + \
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NONCE_MAXIMUM_LENGTH + \
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NONCE_MAXIMUM_LENGTH )
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/* If an optional value is present and should be encoded, the corresponding
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* Bit mask should be set to 1.
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*/
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# define SECURITY_MODE_COMMAND_IMEISV_REQUEST_PRESENT (1<<0)
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# define SECURITY_MODE_COMMAND_REPLAYED_NONCEUE_PRESENT (1<<1)
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# define SECURITY_MODE_COMMAND_NONCEMME_PRESENT (1<<2)
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typedef enum security_mode_command_iei_tag {
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SECURITY_MODE_COMMAND_IMEISV_REQUEST_IEI = 0xC0, /* 0xC0 = 192 */
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SECURITY_MODE_COMMAND_REPLAYED_NONCEUE_IEI = 0x55, /* 0x55 = 85 */
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SECURITY_MODE_COMMAND_NONCEMME_IEI = 0x56, /* 0x56 = 86 */
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} security_mode_command_iei;
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/*
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* Message name: Security mode command
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* Description: This message is sent by the network to the UE to establish NAS signalling security. See table 8.2.20.1.
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* Significance: dual
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* Direction: network to UE
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*/
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typedef struct security_mode_command_msg_tag {
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/* Mandatory fields */
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ProtocolDiscriminator protocoldiscriminator:4;
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SecurityHeaderType securityheadertype:4;
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MessageType messagetype;
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NasSecurityAlgorithms selectednassecurityalgorithms;
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NasKeySetIdentifier naskeysetidentifier;
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UeSecurityCapability replayeduesecuritycapabilities;
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/* Optional fields */
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uint32_t presencemask;
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ImeisvRequest imeisvrequest;
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Nonce replayednonceue;
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Nonce noncemme;
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} security_mode_command_msg;
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int decode_security_mode_command(security_mode_command_msg *securitymodecommand, uint8_t *buffer, uint32_t len);
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int encode_security_mode_command(security_mode_command_msg *securitymodecommand, uint8_t *buffer, uint32_t len);
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#endif /* ! defined(NAS_SECURITY_MODE_COMMAND_H_) */
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