517 lines
18 KiB
C
517 lines
18 KiB
C
/*
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* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero 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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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#if !defined(OGS_CORE_INSIDE) && !defined(OGS_CORE_COMPILATION)
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#error "This header cannot be included directly."
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#endif
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#ifndef OGS_3GPP_TYPES_H
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#define OGS_3GPP_TYPES_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define OGS_MAX_NUM_OF_SESS 4 /* Num of APN(Session) per UE */
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#define OGS_MAX_NUM_OF_RULE 4 /* Num of Rule per Session */
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/* Num of PacketFilter per Bearer(GTP) or QoS(NAS-5GS) */
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#define OGS_MAX_NUM_OF_PACKET_FILTER 16
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#define OGS_MAX_SDU_LEN 8192
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#define OGS_PLMN_ID_LEN 3
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#define OGS_MAX_PLMN_ID_BCD_LEN 6
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#define OGS_BCD_TO_BUFFER_LEN(x) (((x)+1)/2)
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#define OGS_MAX_IMSI_BCD_LEN 15
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#define OGS_MAX_IMSI_LEN \
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OGS_BCD_TO_BUFFER_LEN(OGS_MAX_IMSI_BCD_LEN)
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#define OGS_MAX_IMEISV_BCD_LEN 16
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#define OGS_MAX_IMEISV_LEN \
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OGS_BCD_TO_BUFFER_LEN(OGS_MAX_IMEISV_BCD_LEN)
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#define OGS_MAX_NUM_OF_ENB_ID 16
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#define OGS_MAX_NUM_OF_APN 16
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#define OGS_MAX_NUM_OF_HOSTNAME 16
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#define OGS_MAX_DNN_LEN 100
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#define OGS_MAX_APN_LEN OGS_MAX_DNN_LEN
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#define OGS_MAX_PCO_LEN 251
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#define OGS_MAX_FQDN_LEN 256
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#define OGS_MAX_NUM_OF_SERVED_TAI 16
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#define OGS_MAX_NUM_OF_ALGORITHM 8
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#define OGS_MAX_NUM_OF_BPLMN 6
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#define OGS_NEXT_ID(__id, __min, __max) \
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((__id) = ((__id) == (__max) ? (__min) : ((__id) + 1)))
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#define OGS_COMPARE_ID(__id1, __id2, __max) \
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((__id2) > (__id1) ? ((__id2) - (__id1) < ((__max)-1) ? -1 : 1) : \
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(__id1) > (__id2) ? ((__id1) - (__id2) < ((__max)-1) ? 1 : -1) : 0)
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#define OGS_TIME_TO_BCD(x) \
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(((((x) % 10) << 4) & 0xf0) | (((x) / 10) & 0x0f))
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#define OGS_NAS_PROCEDURE_TRANSACTION_IDENTITY_UNASSIGNED 0
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#define OGS_NAS_PDU_SESSION_IDENTITY_UNASSIGNED 0
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#define OGS_ACCESS_TYPE_3GPP 1
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#define OGS_ACCESS_TYPE_NON_3GPP 2
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#define OGS_ACCESS_TYPE_BOTH_3GPP_AND_NON_3GPP 3
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typedef struct ogs_uint24_s {
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uint32_t v:24;
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} __attribute__ ((packed)) ogs_uint24_t;
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static ogs_inline ogs_uint24_t ogs_be24toh(ogs_uint24_t x)
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{
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uint32_t tmp = x.v;
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tmp = be32toh(tmp);
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x.v = tmp >> 8;
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return x;
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}
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static ogs_inline ogs_uint24_t ogs_htobe24(ogs_uint24_t x)
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{
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uint32_t tmp = x.v;
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tmp = htobe32(tmp);
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x.v = tmp >> 8;
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return x;
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}
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static ogs_inline ogs_uint24_t ogs_uint24_from_string(char *str)
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{
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ogs_uint24_t x;
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ogs_assert(str);
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OGS_HEX(str, strlen(str), &x);
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return ogs_be24toh(x);
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}
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#define OGS_24BITSTRLEN (sizeof(ogs_uint24_t)*2+1)
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static ogs_inline char *ogs_uint24_to_string(ogs_uint24_t x, char *str)
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{
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ogs_assert(str);
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x = ogs_htobe24(x);
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ogs_hex_to_ascii(&x, sizeof(x), str, OGS_24BITSTRLEN);
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return str;
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}
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/************************************
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* PLMN_ID Structure */
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#define OGS_MAX_NUM_OF_PLMN 6
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typedef struct ogs_plmn_id_s {
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ED2(uint8_t mcc2:4;,
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uint8_t mcc1:4;)
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ED2(uint8_t mnc1:4;,
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uint8_t mcc3:4;)
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ED2(uint8_t mnc3:4;,
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uint8_t mnc2:4;)
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} __attribute__ ((packed)) ogs_plmn_id_t;
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uint32_t ogs_plmn_id_hexdump(void *plmn_id);
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uint16_t ogs_plmn_id_mcc(ogs_plmn_id_t *plmn_id);
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uint16_t ogs_plmn_id_mnc(ogs_plmn_id_t *plmn_id);
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uint16_t ogs_plmn_id_mnc_len(ogs_plmn_id_t *plmn_id);
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void *ogs_plmn_id_build(ogs_plmn_id_t *plmn_id,
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uint16_t mcc, uint16_t mnc, uint16_t mnc_len);
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char *ogs_serving_network_name_from_plmn_id(ogs_plmn_id_t *plmn_id);
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char *ogs_plmn_id_mcc_string(ogs_plmn_id_t *plmn_id);
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char *ogs_plmn_id_mnc_string(ogs_plmn_id_t *plmn_id);
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#define OGS_PLMNIDSTRLEN (sizeof(ogs_plmn_id_t)*2+1)
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char *ogs_plmn_id_to_string(ogs_plmn_id_t *plmn_id, char *buf);
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/************************************
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* AMF_ID Structure */
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typedef struct ogs_amf_id_s {
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uint8_t region;
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uint8_t set1;
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ED2(uint8_t set2:2;,
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uint8_t pointer:6;)
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} __attribute__ ((packed)) ogs_amf_id_t;
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uint32_t ogs_amf_id_hexdump(ogs_amf_id_t *amf_id);
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#define OGS_AMFIDSTRLEN (sizeof(ogs_amf_id_t)*2+1)
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ogs_amf_id_t *ogs_amf_id_from_string(ogs_amf_id_t *amf_id, const char *hex);
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char *ogs_amf_id_to_string(ogs_amf_id_t *amf_id, char *buf);
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uint8_t ogs_amf_region_id(ogs_amf_id_t *amf_id);
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uint16_t ogs_amf_set_id(ogs_amf_id_t *amf_id);
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uint8_t ogs_amf_pointer(ogs_amf_id_t *amf_id);
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ogs_amf_id_t *ogs_amf_id_build(ogs_amf_id_t *amf_id,
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uint8_t region, uint16_t set, uint8_t pointer);
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/************************************
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* SUPI/SUCI */
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char *ogs_supi_from_suci(char *suci);
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char *ogs_supi_get_type(char *supi);
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char *ogs_supi_get_id(char *supi);
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/************************************
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* TAI Structure */
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#define OGS_MAX_NUM_OF_TAI 16
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typedef struct ogs_eps_tai_s {
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ogs_plmn_id_t plmn_id;
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uint16_t tac;
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} __attribute__ ((packed)) ogs_eps_tai_t;
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typedef struct ogs_5gs_tai_s {
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ogs_plmn_id_t plmn_id;
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ogs_uint24_t tac;
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} __attribute__ ((packed)) ogs_5gs_tai_t;
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typedef struct ogs_e_cgi_s {
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ogs_plmn_id_t plmn_id;
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uint32_t cell_id; /* 28 bit */
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} __attribute__ ((packed)) ogs_e_cgi_t;
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typedef struct ogs_nr_cgi_s {
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ogs_plmn_id_t plmn_id;
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uint64_t cell_id; /* 36 bit */
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} __attribute__ ((packed)) ogs_nr_cgi_t;
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/************************************
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* S-NSSAI Structure */
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#define OGS_MAX_NUM_OF_S_NSSAI 16
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#define OGS_S_NSSAI_NO_SD_VALUE 0xffffff
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typedef struct ogs_s_nssai_s {
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uint8_t sst;
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ogs_uint24_t sd;
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} __attribute__ ((packed)) ogs_s_nssai_t;
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char *ogs_s_nssai_sd_to_string(ogs_uint24_t sd);
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ogs_uint24_t ogs_s_nssai_sd_from_string(const char *hex);
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/**************************************************
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* Common Structure
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* S1AP : 9.2.2.1 Transport Layer Address, See 36.414
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* GTP : 8.22 Fully Qualified TEID (F-TEID) */
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#define OGS_IPV4_LEN 4
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#define OGS_IPV6_LEN 16
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#define OGS_IPV4V6_LEN 20
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typedef struct ogs_ip_s {
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uint32_t addr;
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uint8_t addr6[OGS_IPV6_LEN];
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uint32_t len;
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ED3(uint8_t ipv4:1;,
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uint8_t ipv6:1;,
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uint8_t reserved:6;)
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} ogs_ip_t;
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int ogs_ip_to_sockaddr(ogs_ip_t *ip, uint16_t port, ogs_sockaddr_t **list);
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void ogs_sockaddr_to_ip(
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ogs_sockaddr_t *addr, ogs_sockaddr_t *addr6, ogs_ip_t *ip);
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char *ogs_ipv4_to_string(uint32_t addr);
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char *ogs_ipv6_to_string(uint8_t *addr6);
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/**************************************************
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* 8.14 PDN Address Allocation (PAA) */
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#define OGS_PAA_IPV4_LEN 5
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#define OGS_PAA_IPV6_LEN 18
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#define OGS_PAA_IPV4V6_LEN 22
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typedef struct ogs_paa_s {
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ED2(uint8_t spare:5;,
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/* 8.34 PDN Type */
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#define OGS_GTP_PDN_TYPE_IPV4 OGS_PDU_SESSION_TYPE_IPV4
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#define OGS_GTP_PDN_TYPE_IPV6 OGS_PDU_SESSION_TYPE_IPV6
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#define OGS_GTP_PDN_TYPE_IPV4V6 OGS_PDU_SESSION_TYPE_IPV4V6
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#define OGS_GTP_PDN_TYPE_NON_IP OGS_PDU_SESSION_TYPE_NONIP
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#define OGS_PFCP_PDN_TYPE_IPV4 OGS_PDU_SESSION_TYPE_IPV4
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#define OGS_PFCP_PDN_TYPE_IPV6 OGS_PDU_SESSION_TYPE_IPV6
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#define OGS_PFCP_PDN_TYPE_IPV4V6 OGS_PDU_SESSION_TYPE_IPV4V6
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#define OGS_PFCP_PDN_TYPE_NONIP OGS_PDU_SESSION_TYPE_NONIP
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uint8_t pdn_type:3;)
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union {
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/* GTP_PDN_TYPE_IPV4 */
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uint32_t addr;
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/* GTP_PDN_TYPE_IPV6 */
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struct {
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/* the IPv6 Prefix Length */
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uint8_t len;
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/* IPv6 Prefix and Interface Identifier */
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uint8_t addr6[OGS_IPV6_LEN];
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};
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/* GTP_PDN_TYPE_BOTH */
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struct {
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struct {
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/* the IPv6 Prefix Length */
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uint8_t len;
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/* IPv6 Prefix and Interface Identifier */
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uint8_t addr6[OGS_IPV6_LEN];
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};
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uint32_t addr;
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} __attribute__ ((packed)) both;
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};
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} __attribute__ ((packed)) ogs_paa_t;
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#define MAX_BIT_RATE 10000000000UL
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typedef struct ogs_bitrate_s {
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uint64_t downlink; /* bits per seconds */
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uint64_t uplink; /* bits per seconds */
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} ogs_bitrate_t;
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/**********************************
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* QoS Structure */
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typedef struct ogs_qos_s {
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#define OGS_PDN_QCI_1 1
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#define OGS_PDN_QCI_2 2
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#define OGS_PDN_QCI_3 3
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#define OGS_PDN_QCI_4 4
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#define OGS_PDN_QCI_5 5
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#define OGS_PDN_QCI_6 6
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#define OGS_PDN_QCI_7 7
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#define OGS_PDN_QCI_8 8
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#define OGS_PDN_QCI_9 9
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#define OGS_PDN_QCI_65 65
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#define OGS_PDN_QCI_66 66
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#define OGS_PDN_QCI_69 69
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#define OGS_PDN_QCI_70 70
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uint8_t qci;
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struct {
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/* Values 1 to 8 should only be assigned for services that are
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* authorized to receive prioritized treatment within an operator domain.
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* Values 9 to 15 may be assigned to resources that are authorized
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* by the home network and thus applicable when a UE is roaming. */
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uint8_t priority_level;
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#define OGS_PDN_PRE_EMPTION_CAPABILITY_ENABLED 0
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#define OGS_PDN_PRE_EMPTION_CAPABILITY_DISABLED 1
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uint8_t pre_emption_capability;
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#define OGS_PDN_PRE_EMPTION_VULNERABILITY_ENABLED 0
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#define OGS_PDN_PRE_EMPTION_VULNERABILITY_DISABLED 1
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uint8_t pre_emption_vulnerability;
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} arp;
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ogs_bitrate_t mbr; /* Maxmimum Bit Rate (MBR) */
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ogs_bitrate_t gbr; /* Guaranteed Bit Rate (GBR) */
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} ogs_qos_t;
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/**********************************
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* Flow Structure */
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#define OGS_FLOW_DOWNLINK_ONLY 1
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#define OGS_FLOW_UPLINK_ONLY 2
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typedef struct ogs_flow_s {
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uint8_t direction;
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char *description;
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} ogs_flow_t;
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#define OGS_FLOW_FREE(__fLOW) \
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do { \
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if ((__fLOW)->description) \
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{ \
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ogs_free((__fLOW)->description); \
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} \
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else \
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ogs_assert_if_reached(); \
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} while(0)
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/**********************************
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* PCC Rule Structure */
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typedef struct ogs_pcc_rule_s {
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#define OGS_PCC_RULE_TYPE_INSTALL 1
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#define OGS_PCC_RULE_TYPE_REMOVE 2
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uint8_t type;
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#define OGS_MAX_PCC_RULE_NAME_LEN 256
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char *name;
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/* Num of Flow per PCC Rule */
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#define OGS_MAX_NUM_OF_FLOW 8
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ogs_flow_t flow[OGS_MAX_NUM_OF_FLOW];
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int num_of_flow;
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#define OGS_FLOW_STATUS_ENABLED_UPLINK 0
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#define OGS_FLOW_STATUS_ENABLED_DOWNLINK 1
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#define OGS_FLOW_STATUS_ENABLED 2
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#define OGS_FLOW_STATUS_DISABLED 3
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#define OGS_FLOW_STATUS_REMOVE 4
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int flow_status;
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uint32_t precedence;
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ogs_qos_t qos;
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} ogs_pcc_rule_t;
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#define OGS_STORE_PCC_RULE(__dST, __sRC) \
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do { \
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int __iNDEX; \
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ogs_assert((__sRC)); \
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ogs_assert((__dST)); \
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OGS_PCC_RULE_FREE(__dST); \
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(__dST)->type = (__sRC)->type; \
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if ((__sRC)->name) { \
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(__dST)->name = ogs_strdup((__sRC)->name); \
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ogs_assert((__dST)->name); \
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} else \
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ogs_assert_if_reached(); \
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for (__iNDEX = 0; __iNDEX < (__sRC)->num_of_flow; __iNDEX++) { \
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(__dST)->flow[__iNDEX].direction = (__sRC)->flow[__iNDEX].direction; \
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(__dST)->flow[__iNDEX].description = \
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ogs_strdup((__sRC)->flow[__iNDEX].description); \
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ogs_assert((__dST)->flow[__iNDEX].description); \
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} \
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(__dST)->num_of_flow = (__sRC)->num_of_flow; \
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(__dST)->flow_status = (__sRC)->flow_status; \
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(__dST)->precedence = (__sRC)->precedence; \
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memcpy(&(__dST)->qos, &(__sRC)->qos, sizeof(ogs_qos_t)); \
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} while(0)
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#define OGS_PCC_RULE_FREE(__pCCrULE) \
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do { \
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int __pCCrULE_iNDEX; \
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ogs_assert((__pCCrULE)); \
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if ((__pCCrULE)->name) \
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ogs_free((__pCCrULE)->name); \
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for (__pCCrULE_iNDEX = 0; \
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__pCCrULE_iNDEX < (__pCCrULE)->num_of_flow; __pCCrULE_iNDEX++) { \
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OGS_FLOW_FREE(&((__pCCrULE)->flow[__pCCrULE_iNDEX])); \
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} \
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(__pCCrULE)->num_of_flow = 0; \
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} while(0)
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/**********************************
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* PDN Structure */
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typedef struct ogs_pdn_s {
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uint32_t context_identifier;
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union {
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char apn[OGS_MAX_APN_LEN+1];
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char dnn[OGS_MAX_DNN_LEN+1];
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};
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#define OGS_DIAM_PDN_TYPE_IPV4 0
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#define OGS_DIAM_PDN_TYPE_IPV6 1
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#define OGS_DIAM_PDN_TYPE_IPV4V6 2
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#define OGS_DIAM_PDN_TYPE_IPV4_OR_IPV6 3
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#define OGS_PDU_SESSION_TYPE_IPV4 1
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#define OGS_PDU_SESSION_TYPE_IPV6 2
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#define OGS_PDU_SESSION_TYPE_IPV4V6 3
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#define OGS_PDU_SESSION_TYPE_UNSTRUCTURED 4
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#define OGS_PDU_SESSION_TYPE_ETHERNET 5
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uint8_t pdn_type;
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#define OGS_SSC_MODE_1 1
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#define OGS_SSC_MODE_2 2
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#define OGS_SSC_MODE_3 3
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uint8_t ssc_mode;
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ogs_qos_t qos;
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ogs_bitrate_t ambr; /* APN-AMBR */
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ogs_paa_t paa;
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ogs_ip_t ue_ip;
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ogs_ip_t pgw_ip;
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} ogs_pdn_t;
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int ogs_fqdn_build(char *dst, char *src, int len);
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int ogs_fqdn_parse(char *dst, char *src, int len);
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/**************************************************
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* Protocol Configuration Options Structure
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* 8.13 Protocol Configuration Options (PCO)
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* 10.5.6.3 Protocol configuration options in 3GPP TS 24.008
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* RFC 3232 [103]
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* RFC 1661 [102] */
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#define OGS_PCO_PPP_FOR_USE_WITH_IP_PDP_TYPE_OR_IP_PDN_TYPE 0
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#define OGS_PCO_ID_INTERNET_PROTOCOL_CONTROL_PROTOCOL 0x8021
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#define OGS_PCO_ID_CHALLENGE_HANDSHAKE_AUTHENTICATION_PROTOCOL 0xc223
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#define OGS_PCO_ID_P_CSCF_IPV6_ADDRESS_REQUEST 0x0001
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#define OGS_PCO_ID_DNS_SERVER_IPV6_ADDRESS_REQUEST 0x0003
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#define OGS_PCO_ID_MS_SUPPORTS_BCM 0x0005
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#define OGS_PCO_ID_IP_ADDRESS_ALLOCATION_VIA_NAS_SIGNALLING 0x000a
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#define OGS_PCO_ID_P_CSCF_IPV4_ADDRESS_REQUEST 0x000c
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#define OGS_PCO_ID_DNS_SERVER_IPV4_ADDRESS_REQUEST 0x000d
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#define OGS_PCO_ID_IPV4_LINK_MTU_REQUEST 0x0010
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#define OGS_PCO_ID_MS_SUPPORT_LOCAL_ADDR_TFT_INDICATOR 0x0011
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typedef struct ogs_pco_ipcp_options_s {
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uint8_t type;
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uint8_t len;
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uint32_t addr;
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} __attribute__ ((packed)) ogs_pco_ipcp_options_t;
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#define OGS_PCO_MAX_NUM_OF_IPCO_OPTIONS 4
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typedef struct ogs_pco_ipcp_s {
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uint8_t code;
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uint8_t identifier;
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uint16_t len;
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ogs_pco_ipcp_options_t options[OGS_PCO_MAX_NUM_OF_IPCO_OPTIONS];
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} __attribute__ ((packed)) ogs_pco_ipcp_t;
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typedef struct ogs_pco_id_s {
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uint16_t id;
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uint8_t len;
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void *data;
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} ogs_pco_id_t;
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#define OGS_MAX_NUM_OF_PROTOCOL_OR_CONTAINER_ID 16
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typedef struct ogs_pco_s {
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ED3(uint8_t ext:1;,
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uint8_t spare:4;,
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uint8_t configuration_protocol:3;)
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uint8_t num_of_id;
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ogs_pco_id_t ids[OGS_MAX_NUM_OF_PROTOCOL_OR_CONTAINER_ID];
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} ogs_pco_t;
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int ogs_pco_parse(ogs_pco_t *pco, unsigned char *data, int data_len);
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int ogs_pco_build(unsigned char *data, int data_len, ogs_pco_t *pco);
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typedef struct ogs_subscription_data_s {
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#define OGS_ACCESS_RESTRICTION_UTRAN_NOT_ALLOWED (1)
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#define OGS_ACCESS_RESTRICTION_GERAN_NOT_ALLOWED (1<<1)
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#define OGS_ACCESS_RESTRICTION_GAN_NOT_ALLOWED (1<<2)
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#define OGS_ACCESS_RESTRICTION_I_HSPA_EVOLUTION_NOT_ALLOWED (1<<3)
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#define OGS_ACCESS_RESTRICTION_WB_E_UTRAN_NOT_ALLOWED (1<<4)
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#define OGS_ACCESS_RESTRICTION_HO_TO_NON_3GPP_ACCESS_NOT_ALLOWED (1<<5)
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#define OGS_ACCESS_RESTRICTION_NB_IOT_NOT_ALLOWED (1<<6)
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uint32_t access_restriction_data;
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#define OGS_SUBSCRIBER_STATUS_SERVICE_GRANTED 0
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#define OGS_SUBSCRIBER_STATUS_OPERATOR_DETERMINED_BARRING 1
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uint32_t subscriber_status;
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#define OGS_NETWORK_ACCESS_MODE_PACKET_AND_CIRCUIT 0
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#define OGS_NETWORK_ACCESS_MODE_RESERVED 1
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#define OGS_NETWORK_ACCESS_MODE_ONLY_PACKET 2
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uint32_t network_access_mode;
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ogs_bitrate_t ambr; /* UE-AMBR */
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#define OGS_RAU_TAU_DEFAULT_TIME (12*60) /* 12 min */
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uint32_t subscribed_rau_tau_timer; /* unit : seconds */
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uint32_t context_identifier; /* default APN */
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ogs_pdn_t pdn[OGS_MAX_NUM_OF_SESS];
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int num_of_pdn;
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} ogs_subscription_data_t;
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#ifdef __cplusplus
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}
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#endif
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#endif /* OGS_3GPP_TYPES_H */
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