255 lines
8.3 KiB
C
255 lines
8.3 KiB
C
/*
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* OpenGGSN - Gateway GPRS Support Node
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* Copyright (C) 2002, 2003, 2004 Mondru AB.
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*
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* The contents of this file may be used under the terms of the GNU
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* General Public License Version 2, provided that the above copyright
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* notice and this permission notice is included in all copies or
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* substantial portions of the software.
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*
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*/
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#ifndef _GTPIE_H
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#define _GTPIE_H
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/* Macroes for conversion between host and network byte order */
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#define hton8(x) (x)
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#define ntoh8(x) (x)
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#define hton16(x) htons(x)
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#define ntoh16(x) ntohs(x)
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#define hton32(x) htonl(x)
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#define ntoh32(x) ntohl(x)
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#if BYTE_ORDER == LITTLE_ENDIAN
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static __inline uint64_t
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hton64(uint64_t q)
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{
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register uint32_t u, l;
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u = q >> 32;
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l = (uint32_t) q;
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return htonl(u) | ((uint64_t)htonl(l) << 32);
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}
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#define ntoh64(_x) hton64(_x)
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#elif BYTE_ORDER == BIG_ENDIAN
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#define hton64(_x) (_x)
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#define ntoh64(_x) hton64(_x)
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#else
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#error "Please fix <machine/endian.h>"
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#endif
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#define GTPIE_SIZE 256 /* Max number of information elements */
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#define GTPIE_MAX 0xffff /* Max length of information elements */
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#define GTPIE_MAX_TV 28 /* Max length of type value pair */
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#define GTPIE_MAX_TLV 0xffff-3 /* Max length of TLV (GTP length is 16 bit) */
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#define GTPIE_DEBUG 0 /* Print debug information */
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/* GTP Information elements from 29.060 v3.9.0 7.7 Information Elements */
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/* Also covers version 0. Note that version 0 6: QOS Profile was superceded *
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* by 135: QOS Profile in version 1 */
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#define GTPIE_CAUSE 1 /* Cause 1 */
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#define GTPIE_IMSI 2 /* International Mobile Subscriber Identity 8 */
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#define GTPIE_RAI 3 /* Routing Area Identity (RAI) 8 */
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#define GTPIE_TLLI 4 /* Temporary Logical Link Identity (TLLI) 4 */
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#define GTPIE_P_TMSI 5 /* Packet TMSI (P-TMSI) 4 */
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#define GTPIE_QOS_PROFILE0 6 /* Quality of Service Profile GTP version 0 3*/
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/* 6-7 SPARE */ /* 6 is QoS Profile vers 0 */
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#define GTPIE_REORDER 8 /* Reordering Required 1 */
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#define GTPIE_AUTH_TRIPLET 9 /* Authentication Triplet 28 */
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/* 10 SPARE */
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#define GTPIE_MAP_CAUSE 11 /* MAP Cause 1 */
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#define GTPIE_P_TMSI_S 12 /* P-TMSI Signature 3 */
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#define GTPIE_MS_VALIDATED 13 /* MS Validated 1 */
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#define GTPIE_RECOVERY 14 /* Recovery 1 */
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#define GTPIE_SELECTION_MODE 15 /* Selection Mode 1 */
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#define GTPIE_FL_DI 16 /* Flow Label Data I 2 */
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#define GTPIE_TEI_DI 16 /* Tunnel Endpoint Identifier Data I 4 */
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#define GTPIE_TEI_C 17 /* Tunnel Endpoint Identifier Control Plane 4 */
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#define GTPIE_FL_C 17 /* Flow Label Signalling 2 */
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#define GTPIE_TEI_DII 18 /* Tunnel Endpoint Identifier Data II 5 */
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#define GTPIE_TEARDOWN 19 /* Teardown Ind 1 */
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#define GTPIE_NSAPI 20 /* NSAPI 1 */
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#define GTPIE_RANAP_CAUSE 21 /* RANAP Cause 1 */
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#define GTPIE_RAB_CONTEXT 22 /* RAB Context 7 */
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#define GTPIE_RP_SMS 23 /* Radio Priority SMS 1 */
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#define GTPIE_RP 24 /* Radio Priority 1 */
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#define GTPIE_PFI 25 /* Packet Flow Id 2 */
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#define GTPIE_CHARGING_C 26 /* Charging Characteristics 2 */
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#define GTPIE_TRACE_REF 27 /* Trace Reference 2 */
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#define GTPIE_TRACE_TYPE 28 /* Trace Type 2 */
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#define GTPIE_MS_NOT_REACH 29 /* MS Not Reachable Reason 1 */
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/* 30-116 UNUSED */
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/* 117-126 Reserved for the GPRS charging protocol (see GTP' in GSM 12.15) */
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#define GTPIE_CHARGING_ID 127 /* Charging ID 4 */
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#define GTPIE_EUA 128 /* End User Address */
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#define GTPIE_MM_CONTEXT 129 /* MM Context */
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#define GTPIE_PDP_CONTEXT 130 /* PDP Context */
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#define GTPIE_APN 131 /* Access Point Name */
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#define GTPIE_PCO 132 /* Protocol Configuration Options */
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#define GTPIE_GSN_ADDR 133 /* GSN Address */
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#define GTPIE_MSISDN 134 /* MS International PSTN/ISDN Number */
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#define GTPIE_QOS_PROFILE 135 /* Quality of Service Profile */
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#define GTPIE_AUTH_QUINTUP 136 /* Authentication Quintuplet */
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#define GTPIE_TFT 137 /* Traffic Flow Template */
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#define GTPIE_TARGET_INF 138 /* Target Identification */
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#define GTPIE_UTRAN_TRANS 139 /* UTRAN Transparent Container */
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#define GTPIE_RAB_SETUP 140 /* RAB Setup Information */
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#define GTPIE_EXT_HEADER_T 141 /* Extension Header Type List */
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#define GTPIE_TRIGGER_ID 142 /* Trigger Id */
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#define GTPIE_OMC_ID 143 /* OMC Identity */
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/* 239-250 Reserved for the GPRS charging protocol (see GTP' in GSM 12.15) */
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#define GTPIE_CHARGING_ADDR 251 /* Charging Gateway Address */
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/* 252-254 Reserved for the GPRS charging protocol (see GTP' in GSM 12.15) */
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#define GTPIE_PRIVATE 255 /* Private Extension */
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/* GTP information element structs in network order */
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struct gtpie_ext { /* Extension header */
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uint8_t t; /* Type */
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uint8_t l; /* Length */
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uint8_t *p; /* Value */
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} __attribute__((packed));
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struct gtpie_tlv { /* Type length value pair */
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uint8_t t; /* Type */
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uint16_t l; /* Length */
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uint8_t v[GTPIE_MAX_TLV]; /* Value */
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} __attribute__((packed));
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struct gtpie_tv0 { /* 1 byte type value pair */
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uint8_t t; /* Type */
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uint8_t v[GTPIE_MAX_TV]; /* Pointer to value */
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}__attribute__((packed));
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struct gtpie_tv1 { /* 1 byte type value pair */
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uint8_t t; /* Type */
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uint8_t v; /* Value */
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}__attribute__((packed));
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struct gtpie_tv2 { /* 2 byte type value pair */
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uint8_t t; /* Type */
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uint16_t v; /* Value */
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}__attribute__((packed));
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struct gtpie_tv4 { /* 4 byte type value pair */
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uint8_t t; /* Type */
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uint32_t v; /* Value */
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}__attribute__((packed));
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struct gtpie_tv8 { /* 8 byte type value pair */
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uint8_t t; /* Type */
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uint64_t v; /* Value */
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}__attribute__((packed));
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union gtpie_member {
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uint8_t t;
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struct gtpie_ext ext;
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struct gtpie_tlv tlv;
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struct gtpie_tv0 tv0;
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struct gtpie_tv1 tv1;
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struct gtpie_tv2 tv2;
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struct gtpie_tv4 tv4;
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struct gtpie_tv8 tv8;
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}__attribute__((packed));
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/*
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cause
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imsi
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rai
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tlli
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p_tmsi
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qos_profile0
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reorder
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auth
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map_cause
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p_tmsi_s
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ms_validated
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recovery
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selection_mode
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tei_di
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tei_c
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tei_dii
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teardown
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nsapi
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ranap_cause
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rab_context
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rp_sms
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rp
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pfi
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charging_c
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trace_ref
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trace_type
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ms_not_reach
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charging_id
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eua
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mm_context
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pdp_context
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apn
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pco
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gsn_addr
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msisdn
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qos_profile
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auth
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tft
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target_inf
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utran_trans
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rab_setup
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ext_header_t
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trigger_id
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omc_id
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charging_addr
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private
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*/
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struct tlv1 {
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uint8_t type;
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uint8_t length;
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}__attribute__((packed));
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struct tlv2 {
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uint8_t type;
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uint16_t length;
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}__attribute__((packed));
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extern int gtpie_tlv(void *p, int *length, int size,
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uint8_t t, int l, void *v);
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extern int gtpie_tv0(void *p, int *length, int size,
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uint8_t t, int l, uint8_t *v);
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extern int gtpie_tv1(void *p, int *length, int size, uint8_t t, uint8_t v);
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extern int gtpie_tv2(void *p, int *length, int size, uint8_t t, uint16_t v);
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extern int gtpie_tv4(void *p, int *length, int size, uint8_t t, uint32_t v);
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extern int gtpie_tv8(void *p, int *length, int size, uint8_t t, uint64_t v);
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extern int gtpie_getie(union gtpie_member* ie[], int type, int instance);
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extern int gtpie_exist(union gtpie_member* ie[], int type, int instance);
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extern int gtpie_gettlv(union gtpie_member* ie[], int type, int instance,
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int *length, void *dst, int size);
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extern int gtpie_gettv0(union gtpie_member* ie[], int type, int instance,
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void *dst, int size);
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extern int gtpie_gettv1(union gtpie_member* ie[], int type, int instance,
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uint8_t *dst);
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extern int gtpie_gettv2(union gtpie_member* ie[], int type, int instance,
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uint16_t *dst);
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extern int gtpie_gettv4(union gtpie_member* ie[], int type, int instance,
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uint32_t *dst);
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extern int gtpie_gettv8(union gtpie_member* ie[], int type, int instance,
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uint64_t *dst);
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extern int gtpie_decaps(union gtpie_member* ie[], int version,
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void *pack, unsigned len);
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extern int gtpie_encaps(union gtpie_member* ie[], void *pack, unsigned *len);
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extern int gtpie_encaps2(union gtpie_member ie[], int size,
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void *pack, unsigned *len);
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#endif /* !_GTPIE_H */
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