101 lines
3.9 KiB
C
101 lines
3.9 KiB
C
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@eurecom.fr
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Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
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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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