Guido Casati
88f294bed1
Handle authentication not accepted by the network. The handler assumes the message is not integrity protected, processes the received NAS message and logs whether a EAP-failure is enclosed. The UE enters state: 5GMM-DEREGISTERED. Not done in this commit: the UE shall performs actions as per 5.4.1.3.5 of 3GPP TS 24.501, including (1) Abort any ongoing 5GMM procedure (2) Stop all active timers: T3510, T3516, T3517, T3519, T3520, T3521 (3) Delete stored SUCI. (4) handle EAP-failure message.
173 lines
8.4 KiB
C
173 lines
8.4 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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* This header file defines structures, macros,
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* and functions for the handling of common NAS 5GMM IEs.
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* This library is intended for use within the 5GMM encode/decode library only.
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*/
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#ifndef FGS_LIB_H
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#define FGS_LIB_H
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#include <stdint.h>
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#include <stdbool.h>
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#include "fgs_nas_utils.h"
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#include "common/utils/ds/byte_array.h"
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/* The following defines are valide for
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both PDU Session Status and PDU session Reactivation Result IEs */
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#define MIN_PDU_SESSION_CONTENTS_LEN 2
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#define MAX_PDU_SESSION_CONTENTS_LEN 32
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#define MAX_NUM_PSI 16
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#define MAX_NUM_PDU_ERRORS 256
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#define MAX_EAP_CONTENTS_LEN 1500
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/* This macro updates the local copy of
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a byte_array_t pointer used for enc/dec */
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#define UPDATE_BYTE_ARRAY(ba, shift) \
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do { \
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(ba).buf += (shift); \
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(ba).len -= (shift); \
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} while (0)
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/* This macro checks the result of the encoder.
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If successful, it updates the encoded bytes counter
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and the local copy of the byte_array_t pointer.
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Otherwise, it returns -1. */
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#define ENCODE_NAS_IE(ba, exp, encoded) \
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do { \
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int ret = (exp); \
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if (ret < 0) { \
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return -1; \
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} \
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(encoded) += ret; \
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UPDATE_BYTE_ARRAY((ba), ret); \
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} while (0)
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/* This macro checks the result of the decoder.
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If successful, it updates the decoded bytes counter
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and the local copy of the byte_array_t pointer.
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Otherwise, it returns -1. */
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#define DECODE_NAS_IE(ba, exp, decoded) \
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do { \
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int ret = (exp); \
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if (ret < 0) { \
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return -1; \
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} \
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(decoded) += ret; \
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UPDATE_BYTE_ARRAY((ba), ret); \
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} while (0)
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/* Timer value is incremented in multiples of 2 seconds,
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1 minute, etc (10.5.7.3 of 3GPP TS 24.008) */
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#define FOREACH_TIMER_UNIT(TIMER_UNIT) \
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TIMER_UNIT(TWO_SECONDS, 0x00) \
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TIMER_UNIT(ONE_MINUTE, 0x01) \
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TIMER_UNIT(DECIHOURS, 0x02) \
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TIMER_UNIT(DEACTIVATED, 0x07)
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typedef enum { FOREACH_TIMER_UNIT(TO_ENUM) } GPRS_Timer_t;
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typedef enum { PDU_SESSION_INACTIVE = 0, PDU_SESSION_ACTIVE } PSI_status_t;
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typedef enum { REACTIVATION_SUCCESS = 0, REACTIVATION_FAILED } PSI_reactivation_t;
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#define FOREACH_SA_IEI(IEI_DEF) \
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IEI_DEF(IEI_PDU_SESSION_STATUS, 0x50) \
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IEI_DEF(IEI_PDU_SESSION_REACT_RESULT, 0x26) \
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IEI_DEF(IEI_PDU_SESSION_REACT_RESULT_ERROR_CAUSE, 0x72) \
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IEI_DEF(IEI_EAPMSG, 0x78) \
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IEI_DEF(IEI_CAG_INFO_LIST, 0x75) \
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IEI_DEF(IEI_T3448_VALUE, 0x6B) \
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IEI_DEF(IEI_T3446_VALUE, 0x5F)
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// Enum for Service Accept IEIs
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typedef enum { FOREACH_SA_IEI(TO_ENUM) } nas_service_IEI_t;
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static const text_info_t sa_iei_s[] = {FOREACH_SA_IEI(TO_TEXT)};
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// table 9.11.3.2.1
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#define FOREACH_CAUSE(CAUSE_DEF) \
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CAUSE_DEF(Illegal_UE, 0x3) \
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CAUSE_DEF(PEI_not_accepted, 0x5) \
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CAUSE_DEF(Illegal_ME, 0x6) \
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CAUSE_DEF(SGS_services_not_allowed, 0x7) \
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CAUSE_DEF(UE_identity_cannot_be_derived_by_the_network, 0x9) \
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CAUSE_DEF(Implicitly_de_registered, 0x0a) \
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CAUSE_DEF(PLMN_not_allowed, 0x0b) \
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CAUSE_DEF(Tracking_area_not_allowed, 0x0c) \
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CAUSE_DEF(Roaming_not_allowed_in_this_tracking_area, 0x0d) \
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CAUSE_DEF(No_suitable_cells_in_tracking_area, 0x0f) \
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CAUSE_DEF(MAC_failure, 0x14) \
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CAUSE_DEF(Synch_failure, 0x15) \
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CAUSE_DEF(Congestion, 0x16) \
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CAUSE_DEF(UE_security_capabilities_mismatch, 0x17) \
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CAUSE_DEF(Security_mode_rejected_unspecified, 0x18) \
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CAUSE_DEF(Non_5G_authentication_unacceptable, 0x1a) \
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CAUSE_DEF(N1_mode_not_allowed, 0x1b) \
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CAUSE_DEF(Restricted_service_area, 0x1c) \
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CAUSE_DEF(Redirection_to_EPC_required, 0x1f) \
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CAUSE_DEF(LADN_not_available, 0x2b) \
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CAUSE_DEF(No_network_slices_available, 0x3e) \
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CAUSE_DEF(Maximum_number_of_PDU_sessions_reached, 0x41) \
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CAUSE_DEF(Insufficient_resources_for_specific_slice_and_DNN, 0x43) \
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CAUSE_DEF(Insufficient_resources_for_specific_slice, 0x45) \
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CAUSE_DEF(ngKSI_already_in_use, 0x47) \
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CAUSE_DEF(Non_3GPP_access_to_5GCN_not_allowed, 0x48) \
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CAUSE_DEF(Serving_network_not_authorized, 0x49) \
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CAUSE_DEF(Temporarily_not_authorized_for_this_SNPN, 0x4A) \
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CAUSE_DEF(Permanently_not_authorized_for_this_SNPN, 0x4b) \
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CAUSE_DEF(Not_authorized_for_this_CAG_or_authorized_for_CAG_cells_only, 0x4c) \
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CAUSE_DEF(Wireline_access_area_not_allowed, 0x4d) \
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CAUSE_DEF(Payload_was_not_forwarded, 0x5a) \
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CAUSE_DEF(DNN_not_supported_or_not_subscribed_in_the_slice, 0x5b) \
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CAUSE_DEF(Insufficient_user_plane_resources_for_the_PDU_session, 0x5c) \
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CAUSE_DEF(Semantically_incorrect_message, 0x5f) \
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CAUSE_DEF(Invalid_mandatory_information, 0x60) \
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CAUSE_DEF(Message_type_non_existent_or_not_implemented, 0x61) \
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CAUSE_DEF(Message_type_not_compatible_with_the_protocol_state, 0x62) \
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CAUSE_DEF(Information_element_non_existent_or_not_implemented, 0x63) \
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CAUSE_DEF(Conditional_IE_error, 0x64) \
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CAUSE_DEF(Message_not_compatible_with_the_protocol_state, 0x65) \
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CAUSE_DEF(Protocol_error_unspecified, 0x67)
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typedef enum { FOREACH_CAUSE(TO_ENUM) } cause_id_t;
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static const text_info_t fgmm_cause_s[] = {FOREACH_CAUSE(TO_TEXT)};
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/* 10.5.7.3 3GPP TS 24.008 */
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typedef struct {
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uint8_t value;
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uint8_t unit;
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} gprs_timer_t;
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int encode_pdu_session_ie(byte_array_t *buffer, nas_service_IEI_t iei, const uint8_t *psi);
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int decode_pdu_session_ie(uint8_t *psi, const byte_array_t *buffer);
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int encode_gprs_timer_ie(byte_array_t *buffer, nas_service_IEI_t iei, const gprs_timer_t *timer);
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int decode_gprs_timer_ie(gprs_timer_t *timer, const byte_array_t *buffer);
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bool eq_gprs_timer(const gprs_timer_t *a, const gprs_timer_t *b);
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int decode_eap_msg_ie(byte_array_t *eap_msg, const byte_array_t *buffer);
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int encode_eap_msg_ie(byte_array_t *buffer, const byte_array_t *msg);
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int encode_fgs_nas_cause(byte_array_t *buffer, const cause_id_t *cause);
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int decode_fgs_nas_cause(cause_id_t *cause, const byte_array_t *buffer);
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#endif /* FGS_LIB_H */ |