jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 1 | /* |
| 2 | * OpenGGSN - Gateway GPRS Support Node |
| 3 | * Copyright (C) 2002 Mondru AB. |
| 4 | * |
| 5 | * The contents of this file may be used under the terms of the GNU |
| 6 | * General Public License Version 2, provided that the above copyright |
| 7 | * notice and this permission notice is included in all copies or |
| 8 | * substantial portions of the software. |
| 9 | * |
| 10 | * The initial developer of the original code is |
| 11 | * Jens Jakobsen <jj@openggsn.org> |
| 12 | * |
| 13 | * Contributor(s): |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #ifndef _GTPIE_H |
| 18 | #define _GTPIE_H |
| 19 | |
| 20 | /* Macroes for conversion between host and network byte order */ |
| 21 | #define hton8(x) (x) |
| 22 | #define ntoh8(x) (x) |
| 23 | #define hton16(x) htons(x) |
| 24 | #define ntoh16(x) ntohs(x) |
| 25 | #define hton32(x) htonl(x) |
| 26 | #define ntoh32(x) ntohl(x) |
| 27 | |
jjako | 08d331d | 2003-10-13 20:33:30 +0000 | [diff] [blame] | 28 | #if BYTE_ORDER == LITTLE_ENDIAN |
| 29 | static __inline u_int64_t |
| 30 | hton64(u_int64_t q) |
| 31 | { |
| 32 | register u_int32_t u, l; |
| 33 | u = q >> 32; |
| 34 | l = (u_int32_t) q; |
| 35 | |
| 36 | return htonl(u) | ((u_int64_t)htonl(l) << 32); |
| 37 | } |
| 38 | |
| 39 | #define ntoh64(_x) hton64(_x) |
| 40 | |
| 41 | #elif BYTE_ORDER == BIG_ENDIAN |
| 42 | |
| 43 | #define hton64(_x) (_x) |
| 44 | #define ntoh64(_x) hton64(_x) |
| 45 | |
| 46 | #else |
| 47 | #error "Please fix <machine/endian.h>" |
| 48 | #endif |
| 49 | |
| 50 | |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 51 | #define GTPIE_SIZE 256 /* Max number of information elements */ |
| 52 | #define GTPIE_MAX 0xffff /* Max length of information elements */ |
| 53 | #define GTPIE_MAX_TV 28 /* Max length of type value pair */ |
| 54 | #define GTPIE_MAX_TLV 0xffff-3 /* Max length of TLV (GTP length is 16 bit) */ |
| 55 | |
| 56 | #define GTPIE_DEBUG 0 /* Print debug information */ |
| 57 | |
| 58 | /* GTP Information elements from 29.060 v3.9.0 7.7 Information Elements */ |
| 59 | /* Also covers version 0. Note that version 0 6: QOS Profile was superceded * |
| 60 | * by 135: QOS Profile in version 1 */ |
| 61 | |
| 62 | #define GTPIE_CAUSE 1 /* Cause 1 */ |
| 63 | #define GTPIE_IMSI 2 /* International Mobile Subscriber Identity 8 */ |
| 64 | #define GTPIE_RAI 3 /* Routing Area Identity (RAI) 8 */ |
| 65 | #define GTPIE_TLLI 4 /* Temporary Logical Link Identity (TLLI) 4 */ |
| 66 | #define GTPIE_P_TMSI 5 /* Packet TMSI (P-TMSI) 4 */ |
| 67 | #define GTPIE_QOS_PROFILE0 6 /* Quality of Service Profile GTP version 0 3*/ |
| 68 | /* 6-7 SPARE */ /* 6 is QoS Profile vers 0 */ |
| 69 | #define GTPIE_REORDER 8 /* Reordering Required 1 */ |
| 70 | #define GTPIE_AUTH_TRIPLET 9 /* Authentication Triplet 28 */ |
| 71 | /* 10 SPARE */ |
| 72 | #define GTPIE_MAP_CAUSE 11 /* MAP Cause 1 */ |
| 73 | #define GTPIE_P_TMSI_S 12 /* P-TMSI Signature 3 */ |
| 74 | #define GTPIE_MS_VALIDATED 13 /* MS Validated 1 */ |
| 75 | #define GTPIE_RECOVERY 14 /* Recovery 1 */ |
| 76 | #define GTPIE_SELECTION_MODE 15 /* Selection Mode 1 */ |
| 77 | #define GTPIE_FL_DI 16 /* Flow Label Data I 2 */ |
| 78 | #define GTPIE_TEI_DI 16 /* Tunnel Endpoint Identifier Data I 4 */ |
| 79 | #define GTPIE_TEI_C 17 /* Tunnel Endpoint Identifier Control Plane 4 */ |
| 80 | #define GTPIE_FL_C 17 /* Flow Label Signalling 2 */ |
| 81 | #define GTPIE_TEI_DII 18 /* Tunnel Endpoint Identifier Data II 5 */ |
| 82 | #define GTPIE_TEARDOWN 19 /* Teardown Ind 1 */ |
| 83 | #define GTPIE_NSAPI 20 /* NSAPI 1 */ |
| 84 | #define GTPIE_RANAP_CAUSE 21 /* RANAP Cause 1 */ |
| 85 | #define GTPIE_RAB_CONTEXT 22 /* RAB Context 7 */ |
| 86 | #define GTPIE_RP_SMS 23 /* Radio Priority SMS 1 */ |
| 87 | #define GTPIE_RP 24 /* Radio Priority 1 */ |
| 88 | #define GTPIE_PFI 25 /* Packet Flow Id 2 */ |
| 89 | #define GTPIE_CHARGING_C 26 /* Charging Characteristics 2 */ |
| 90 | #define GTPIE_TRACE_REF 27 /* Trace Reference 2 */ |
| 91 | #define GTPIE_TRACE_TYPE 28 /* Trace Type 2 */ |
| 92 | #define GTPIE_MS_NOT_REACH 29 /* MS Not Reachable Reason 1 */ |
| 93 | /* 30-116 UNUSED */ |
| 94 | /* 117-126 Reserved for the GPRS charging protocol (see GTP' in GSM 12.15) */ |
| 95 | #define GTPIE_CHARGING_ID 127 /* Charging ID 4 */ |
| 96 | #define GTPIE_EUA 128 /* End User Address */ |
| 97 | #define GTPIE_MM_CONTEXT 129 /* MM Context */ |
| 98 | #define GTPIE_PDP_CONTEXT 130 /* PDP Context */ |
| 99 | #define GTPIE_APN 131 /* Access Point Name */ |
| 100 | #define GTPIE_PCO 132 /* Protocol Configuration Options */ |
| 101 | #define GTPIE_GSN_ADDR 133 /* GSN Address */ |
| 102 | #define GTPIE_MSISDN 134 /* MS International PSTN/ISDN Number */ |
| 103 | #define GTPIE_QOS_PROFILE 135 /* Quality of Service Profile */ |
| 104 | #define GTPIE_AUTH_QUINTUP 136 /* Authentication Quintuplet */ |
| 105 | #define GTPIE_TFT 137 /* Traffic Flow Template */ |
| 106 | #define GTPIE_TARGET_INF 138 /* Target Identification */ |
| 107 | #define GTPIE_UTRAN_TRANS 139 /* UTRAN Transparent Container */ |
| 108 | #define GTPIE_RAB_SETUP 140 /* RAB Setup Information */ |
| 109 | #define GTPIE_EXT_HEADER_T 141 /* Extension Header Type List */ |
| 110 | #define GTPIE_TRIGGER_ID 142 /* Trigger Id */ |
| 111 | #define GTPIE_OMC_ID 143 /* OMC Identity */ |
| 112 | /* 239-250 Reserved for the GPRS charging protocol (see GTP' in GSM 12.15) */ |
| 113 | #define GTPIE_CHARGING_ADDR 251 /* Charging Gateway Address */ |
| 114 | /* 252-254 Reserved for the GPRS charging protocol (see GTP' in GSM 12.15) */ |
| 115 | #define GTPIE_PRIVATE 255 /* Private Extension */ |
| 116 | |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 117 | |
| 118 | /* GTP information element structs in network order */ |
| 119 | struct gtpie_ext { /* Extension header */ |
| 120 | u_int8_t t; /* Type */ |
| 121 | u_int8_t l; /* Length */ |
| 122 | u_int8_t *p; /* Value */ |
| 123 | } __attribute__((packed)); |
| 124 | |
| 125 | struct gtpie_tlv { /* Type length value pair */ |
| 126 | u_int8_t t; /* Type */ |
| 127 | u_int16_t l; /* Length */ |
| 128 | u_int8_t v[GTPIE_MAX_TLV]; /* Value */ |
| 129 | } __attribute__((packed)); |
| 130 | |
| 131 | struct gtpie_tv0 { /* 1 byte type value pair */ |
| 132 | u_int8_t t; /* Type */ |
| 133 | u_int8_t v[GTPIE_MAX_TV]; /* Pointer to value */ |
| 134 | }__attribute__((packed)); |
| 135 | |
| 136 | struct gtpie_tv1 { /* 1 byte type value pair */ |
| 137 | u_int8_t t; /* Type */ |
| 138 | u_int8_t v; /* Value */ |
| 139 | }__attribute__((packed)); |
| 140 | |
| 141 | struct gtpie_tv2 { /* 2 byte type value pair */ |
| 142 | u_int8_t t; /* Type */ |
| 143 | u_int16_t v; /* Value */ |
| 144 | }__attribute__((packed)); |
| 145 | |
| 146 | struct gtpie_tv4 { /* 4 byte type value pair */ |
| 147 | u_int8_t t; /* Type */ |
| 148 | u_int32_t v; /* Value */ |
| 149 | }__attribute__((packed)); |
| 150 | |
| 151 | struct gtpie_tv8 { /* 8 byte type value pair */ |
| 152 | u_int8_t t; /* Type */ |
| 153 | u_int64_t v; /* Value */ |
| 154 | }__attribute__((packed)); |
| 155 | |
| 156 | |
| 157 | union gtpie_member { |
| 158 | u_int8_t t; |
| 159 | struct gtpie_ext ext; |
| 160 | struct gtpie_tlv tlv; |
| 161 | struct gtpie_tv0 tv0; |
| 162 | struct gtpie_tv1 tv1; |
| 163 | struct gtpie_tv2 tv2; |
| 164 | struct gtpie_tv4 tv4; |
| 165 | struct gtpie_tv8 tv8; |
| 166 | }__attribute__((packed)); |
| 167 | |
| 168 | /* |
| 169 | cause |
| 170 | imsi |
| 171 | rai |
| 172 | tlli |
| 173 | p_tmsi |
| 174 | qos_profile0 |
| 175 | reorder |
| 176 | auth |
| 177 | map_cause |
| 178 | p_tmsi_s |
| 179 | ms_validated |
| 180 | recovery |
| 181 | selection_mode |
| 182 | tei_di |
| 183 | tei_c |
| 184 | tei_dii |
| 185 | teardown |
| 186 | nsapi |
| 187 | ranap_cause |
| 188 | rab_context |
| 189 | rp_sms |
| 190 | rp |
| 191 | pfi |
| 192 | charging_c |
| 193 | trace_ref |
| 194 | trace_type |
| 195 | ms_not_reach |
| 196 | charging_id |
| 197 | eua |
| 198 | mm_context |
| 199 | pdp_context |
| 200 | apn |
| 201 | pco |
| 202 | gsn_addr |
| 203 | msisdn |
| 204 | qos_profile |
| 205 | auth |
| 206 | tft |
| 207 | target_inf |
| 208 | utran_trans |
| 209 | rab_setup |
| 210 | ext_header_t |
| 211 | trigger_id |
| 212 | omc_id |
| 213 | charging_addr |
| 214 | private |
| 215 | */ |
| 216 | |
| 217 | struct tlv1 { |
| 218 | u_int8_t type; |
| 219 | u_int8_t length; |
| 220 | }__attribute__((packed)); |
| 221 | |
| 222 | struct tlv2 { |
| 223 | u_int8_t type; |
| 224 | u_int16_t length; |
| 225 | }__attribute__((packed)); |
| 226 | |
| 227 | extern int gtpie_tlv(void *p, int *length, int size, |
| 228 | u_int8_t t, int l, void *v); |
| 229 | extern int gtpie_tv0(void *p, int *length, int size, |
| 230 | u_int8_t t, int l, u_int8_t *v); |
| 231 | extern int gtpie_tv1(void *p, int *length, int size, u_int8_t t, u_int8_t v); |
| 232 | extern int gtpie_tv2(void *p, int *length, int size, u_int8_t t, u_int16_t v); |
| 233 | extern int gtpie_tv4(void *p, int *length, int size, u_int8_t t, u_int32_t v); |
| 234 | extern int gtpie_tv8(void *p, int *length, int size, u_int8_t t, u_int64_t v); |
| 235 | extern int gtpie_getie(union gtpie_member* ie[], int type, int instance); |
| 236 | extern int gtpie_exist(union gtpie_member* ie[], int type, int instance); |
| 237 | extern int gtpie_gettlv(union gtpie_member* ie[], int type, int instance, |
| 238 | int *length, void *dst, int size); |
| 239 | extern int gtpie_gettv0(union gtpie_member* ie[], int type, int instance, |
| 240 | void *dst, int size); |
| 241 | extern int gtpie_gettv1(union gtpie_member* ie[], int type, int instance, |
| 242 | uint8_t *dst); |
| 243 | extern int gtpie_gettv2(union gtpie_member* ie[], int type, int instance, |
| 244 | uint16_t *dst); |
| 245 | extern int gtpie_gettv4(union gtpie_member* ie[], int type, int instance, |
| 246 | uint32_t *dst); |
jjako | 08d331d | 2003-10-13 20:33:30 +0000 | [diff] [blame] | 247 | extern int gtpie_gettv8(union gtpie_member* ie[], int type, int instance, |
| 248 | uint64_t *dst); |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 249 | |
jjako | 08d331d | 2003-10-13 20:33:30 +0000 | [diff] [blame] | 250 | extern int gtpie_decaps(union gtpie_member* ie[], int version, |
| 251 | void *pack, unsigned len); |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 252 | extern int gtpie_encaps(union gtpie_member* ie[], void *pack, unsigned *len); |
| 253 | extern int gtpie_encaps2(union gtpie_member ie[], int size, |
| 254 | void *pack, unsigned *len); |
| 255 | |
| 256 | |
| 257 | #endif /* !_GTPIE_H */ |
| 258 | |
| 259 | |