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File: [local] / src / usr.sbin / tcpdump / gtp.h (download)
Revision 1.1, Wed Nov 4 09:43:11 2009 UTC (14 years, 7 months ago) by jsing
Add support to tcpdump for decoding the GPRS Tunnelling Protocol (GTP), used to carry GPRS data over IP for GSM and UMTS networks. The decoder understands GTPv0, GTPv0', GTPv1-C, GTPv1-U and GTPv1' traffic, however at this stage not all TLV fields are fully decoded. This work has been kindly sponsored by SystemNet AS (www.systemnet.no). "commit" deraadt@ |
/* $OpenBSD: gtp.h,v 1.1 2009/11/04 09:43:11 jsing Exp $ */ /* * Copyright (c) 2009 Joel Sing <jsing@openbsd.org> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef __GTP_H_DEFINED #define __GTP_H_DEFINED #define GTP_VERSION_0 0 #define GTP_VERSION_1 1 #define GTP_VERSION_2 2 #define GTP_VERSION_MASK 0x07 << 5 #define GTP_VERSION_SHIFT 5 #define GTP_V0_PROTO 0 #define GTP_V0_PRIME_PROTO 1 #define GTP_V1_CTRL_PROTO 2 #define GTP_V1_USER_PROTO 3 #define GTP_V1_PRIME_PROTO 4 #define GTPV0_PORT 3386 #define GTPV1_C_PORT 2123 #define GTPV1_U_PORT 2152 #define GTPV1_PRIME_PORT 3386 #define GTPV0_HDR_PROTO_TYPE 1 << 4 #define GTPV0_HDR_SNN 1 << 0 #define GTPV0_IE_TYPE_MASK 1 << 7 #define GTPV0_IE_VALUE_MASK ~GTPV1_IE_TYPE_MASK /* * GTPv0 Message Types. */ #define GTPV0_ECHO_REQUEST 1 #define GTPV0_ECHO_RESPONSE 2 #define GTPV0_VERSION_NOT_SUPPORTED 3 #define GTPV0_NODE_ALIVE_REQUEST 4 #define GTPV0_NODE_ALIVE_RESPONSE 5 #define GTPV0_REDIRECTION_REQUEST 6 #define GTPV0_REDIRECTION_RESPONSE 7 #define GTPV0_CREATE_PDP_CONTEXT_REQUEST 16 #define GTPV0_CREATE_PDP_CONTEXT_RESPONSE 17 #define GTPV0_UPDATE_PDP_CONTEXT_REQUEST 18 #define GTPV0_UPDATE_PDP_CONTEXT_RESPONSE 19 #define GTPV0_DELETE_PDP_CONTEXT_REQUEST 20 #define GTPV0_DELETE_PDP_CONTEXT_RESPONSE 21 #define GTPV0_CREATE_AA_PDP_CONTEXT_REQUEST 22 #define GTPV0_CREATE_AA_PDP_CONTEXT_RESPONSE 23 #define GTPV0_DELETE_AA_PDP_CONTEXT_REQUEST 24 #define GTPV0_DELETE_AA_PDP_CONTEXT_RESPONSE 25 #define GTPV0_ERROR_INDICATION 26 #define GTPV0_PDU_NOTIFICATION_REQUEST 27 #define GTPV0_PDU_NOTIFICATION_RESPONSE 28 #define GTPV0_PDU_NOTIFICATION_REJECT_REQUEST 29 #define GTPV0_PDU_NOTIFICATION_REJECT_RESPONSE 30 #define GTPV0_SEND_ROUTEING_INFO_REQUEST 32 #define GTPV0_SEND_ROUTEING_INFO_RESPONSE 33 #define GTPV0_FAILURE_REPORT_REQUEST 34 #define GTPV0_FAILURE_REPORT_RESPONSE 35 #define GTPV0_MS_GPRS_PRESENT_REQUEST 36 #define GTPV0_MS_GPRS_PRESENT_RESPONSE 37 #define GTPV0_IDENTIFICATION_REQUEST 48 #define GTPV0_IDENTIFICATION_RESPONSE 49 #define GTPV0_SGSN_CONTEXT_REQUEST 50 #define GTPV0_SGSN_CONTEXT_RESPONSE 51 #define GTPV0_SGSN_CONTEXT_ACKNOWLEDGE 52 #define GTPV0_DATA_RECORD_TRANSFER_REQUEST 240 #define GTPV0_DATA_RECORD_TRANSFER_RESPONSE 241 #define GTPV0_T_PDU 255 /* * GTPv0 Information Elements. */ #define GTPV0_TV_CAUSE 1 #define GTPV0_TV_CAUSE_LENGTH 2 #define GTPV0_TV_IMSI 2 #define GTPV0_TV_IMSI_LENGTH 9 #define GTPV0_TV_RAI 3 #define GTPV0_TV_RAI_LENGTH 7 #define GTPV0_TV_TLLI 4 #define GTPV0_TV_TLLI_LENGTH 5 #define GTPV0_TV_PTMSI 5 #define GTPV0_TV_PTMSI_LENGTH 5 #define GTPV0_TV_QOS 6 #define GTPV0_TV_QOS_LENGTH 4 #define GTPV0_TV_REORDER 8 #define GTPV0_TV_REORDER_LENGTH 2 #define GTPV0_TV_AUTH_TRIPLET 9 #define GTPV0_TV_AUTH_TRIPLET_LENGTH 29 #define GTPV0_TV_MAP_CAUSE 11 #define GTPV0_TV_MAP_CAUSE_LENGTH 2 #define GTPV0_TV_PTMSI_SIGNATURE 12 #define GTPV0_TV_PTMSI_SIGNATURE_LENGTH 4 #define GTPV0_TV_MS_VALIDATED 13 #define GTPV0_TV_MS_VALIDATED_LENGTH 2 #define GTPV0_TV_RECOVERY 14 #define GTPV0_TV_RECOVERY_LENGTH 2 #define GTPV0_TV_SELECTION_MODE 15 #define GTPV0_TV_SELECTION_MODE_LENGTH 2 #define GTPV0_TV_FLOW_LABEL_DATA_I 16 #define GTPV0_TV_FLOW_LABEL_DATA_I_LENGTH 3 #define GTPV0_TV_FLOW_LABEL_SIGNALLING 17 #define GTPV0_TV_FLOW_LABEL_SIGNALLING_LENGTH 3 #define GTPV0_TV_FLOW_LABEL_DATA_II 18 #define GTPV0_TV_FLOW_LABEL_DATA_II_LENGTH 4 #define GTPV0_TV_PACKET_XFER_CMD 126 #define GTPV0_TV_PACKET_XFER_CMD_LENGTH 2 #define GTPV0_TV_CHARGING_ID 127 #define GTPV0_TV_CHARGING_ID_LENGTH 5 #define GTPV0_TLV_END_USER_ADDRESS 128 #define GTPV0_TLV_MM_CONTEXT 129 #define GTPV0_TLV_PDP_CONTEXT 130 #define GTPV0_TLV_ACCESS_POINT_NAME 131 #define GTPV0_TLV_PROTOCOL_CONFIG_OPTIONS 132 #define GTPV0_TLV_GSN_ADDRESS 133 #define GTPV0_TLV_MS_ISDN 134 #define GTPV0_TLV_RELEASED_PACKETS 249 #define GTPV0_TLV_CANCELLED_PACKETS 250 #define GTPV0_TLV_CHARGING_GATEWAY_ADDRESS 251 #define GTPV0_TLV_DATA_RECORD_PACKET 252 #define GTPV0_TLV_REQUESTS_RESPONDED 253 #define GTPV0_TLV_RECOMMENDED_NODE 254 #define GTPV0_TLV_PRIVATE_EXTENSION 255 /* * GTP Version 1. */ #define GTPV1_HDR_PROTO_TYPE 1 << 4 #define GTPV1_HDR_RSVD 1 << 3 #define GTPV1_HDR_EH_FLAG 1 << 2 #define GTPV1_HDR_SN_FLAG 1 << 1 #define GTPV1_HDR_NPDU_FLAG 1 << 0 /* * GTPv1 Extended Headers. */ #define GTPV1_HDR_EXT (GTPV1_HDR_EH_FLAG | \ GTPV1_HDR_SN_FLAG | \ GTPV1_HDR_NPDU_FLAG) #define GTPV1_EH_NONE 0x00 #define GTPV1_EH_MBMS_SUPPORT 0x01 #define GTPV1_EH_MSI_CHANGE_RPT 0x02 #define GTPV1_EH_PDCP_PDU_NO 0xc0 #define GTPV1_EH_SUSPEND_REQUEST 0xc1 #define GTPV1_EH_SUSPEND_RESPONSE 0xc2 #define GTPV1_IE_TYPE_MASK 1 << 7 #define GTPV1_IE_VALUE_MASK ~GTPV1_IE_TYPE_MASK #define GTPV1_CAUSE_VALUE_MASK 3 << 6 #define GTPV1_CAUSE_REQUEST 0x00 #define GTPV1_CAUSE_ACCEPTANCE 0x80 #define GTPV1_CAUSE_REJECTION 0xc0 /* * GTPv1 Message Types. */ #define GTPV1_ECHO_REQUEST 1 #define GTPV1_ECHO_RESPONSE 2 #define GTPV1_VERSION_NOT_SUPPORTED 3 #define GTPV1_NODE_ALIVE_REQUEST 4 #define GTPV1_NODE_ALIVE_RESPONSE 5 #define GTPV1_REDIRECTION_REQUEST 6 #define GTPV1_REDIRECTION_RESPONSE 7 #define GTPV1_CREATE_PDP_REQUEST 16 #define GTPV1_CREATE_PDP_RESPONSE 17 #define GTPV1_UPDATE_PDP_REQUEST 18 #define GTPV1_UPDATE_PDP_RESPONSE 19 #define GTPV1_DELETE_PDP_REQUEST 20 #define GTPV1_DELETE_PDP_RESPONSE 21 #define GTPV1_INIT_PDP_ACTIVATE_REQUEST 22 #define GTPV1_INIT_PDP_ACTIVATE_RESPONSE 23 #define GTPV1_ERROR_INDICATION 26 #define GTPV1_PDU_NOTIFICATION_REQUEST 27 #define GTPV1_PDU_NOTIFICATION_RESPONSE 28 #define GTPV1_PDU_NOTIFICATION_REJECT_REQUEST 29 #define GTPV1_PDU_NOTIFICATION_REJECT_RESPONSE 30 #define GTPV1_SUPPORT_EXT_HEADER_NOTIFICATION 31 #define GTPV1_SEND_ROUTEING_INFO_REQUEST 32 #define GTPV1_SEND_ROUTEING_INFO_RESPONSE 33 #define GTPV1_FAILURE_REPORT_REQUEST 34 #define GTPV1_FAILURE_REPORT_RESPONSE 35 #define GTPV1_NOTE_MS_GPRS_PRESENT_REQUEST 36 #define GTPV1_NOTE_MS_GPRS_PRESENT_RESPONSE 37 #define GTPV1_IDENTIFICATION_REQUEST 48 #define GTPV1_IDENTIFICATION_RESPONSE 49 #define GTPV1_SGSN_CONTEXT_REQUEST 50 #define GTPV1_SGSN_CONTEXT_RESPONSE 51 #define GTPV1_SGSN_CONTEXT_ACKNOWLEDGE 52 #define GTPV1_FORWARD_RELOCATION_REQUEST 53 #define GTPV1_FORWARD_RELOCATION_RESPONSE 54 #define GTPV1_FORWARD_RELOCATION_COMPLETE 55 #define GTPV1_RELOCATION_CANCEL_REQUEST 56 #define GTPV1_RELOCATION_CANCEL_RESPONSE 57 #define GTPV1_FORWARD_SRNS_CONTEXT 58 #define GTPV1_FORWARD_RELOCATION_COMPLETE_ACK 59 #define GTPV1_FORWARD_SRNS_CONTEXT_ACK 60 #define GTPV1_RAN_INFORMATION_RELAY 70 #define GTPV1_MBMS_NOTIFICATION_REQUEST 96 #define GTPV1_MBMS_NOTIFICATION_RESPONSE 97 #define GTPV1_MBMS_NOTIFICATION_REJECT_REQUEST 98 #define GTPV1_MBMS_NOTIFICATION_REJECT_RESPONSE 99 #define GTPV1_CREATE_MBMS_CONTEXT_REQUEST 100 #define GTPV1_CREATE_MBMS_CONTEXT_RESPONSE 101 #define GTPV1_UPDATE_MBMS_CONTEXT_REQUEST 102 #define GTPV1_UPDATE_MBMS_CONTEXT_RESPONSE 103 #define GTPV1_DELETE_MBMS_CONTEXT_REQUEST 104 #define GTPV1_DELETE_MBMS_CONTEXT_RESPONSE 105 #define GTPV1_MBMS_REGISTRATION_REQUEST 112 #define GTPV1_MBMS_REGISTRATION_RESPONSE 113 #define GTPV1_MBMS_DEREGISTRATION_REQUEST 114 #define GTPV1_MBMS_DEREGISTRATION_RESPONSE 115 #define GTPV1_MBMS_SESSION_START_REQUEST 116 #define GTPV1_MBMS_SESSION_START_RESPONSE 117 #define GTPV1_MBMS_SESSION_STOP_REQUEST 118 #define GTPV1_MBMS_SESSION_STOP_RESPONSE 119 #define GTPV1_MBMS_SESSION_UPDATE_REQUEST 120 #define GTPV1_MBMS_SESSION_UPDATE_RESPONSE 121 #define GTPV1_MS_INFO_CHANGE_REQUEST 128 #define GTPV1_MS_INFO_CHANGE_RESPONSE 129 #define GTPV1_DATA_RECORD_XFER_REQUEST 240 #define GTPV1_DATA_RECORD_XFER_RESPONSE 241 #define GTPV1_G_PDU 255 /* * GTPv1 Information Elements. */ #define GTPV1_TV_CAUSE 1 #define GTPV1_TV_CAUSE_LENGTH 2 #define GTPV1_TV_IMSI 2 #define GTPV1_TV_IMSI_LENGTH 9 #define GTPV1_TV_RAI 3 #define GTPV1_TV_RAI_LENGTH 7 #define GTPV1_TV_TLLI 4 #define GTPV1_TV_TLLI_LENGTH 5 #define GTPV1_TV_PTMSI 5 #define GTPV1_TV_PTMSI_LENGTH 6 #define GTPV1_TV_REORDER 8 #define GTPV1_TV_REORDER_LENGTH 2 #define GTPV1_TV_AUTH 9 #define GTPV1_TV_AUTH_LENGTH 29 #define GTPV1_TV_MAP_CAUSE 11 #define GTPV1_TV_MAP_CAUSE_LENGTH 2 #define GTPV1_TV_PTMSI_SIGNATURE 12 #define GTPV1_TV_PTMSI_SIGNATURE_LENGTH 4 #define GTPV1_TV_MS_VALIDATED 13 #define GTPV1_TV_MS_VALIDATED_LENGTH 2 #define GTPV1_TV_RECOVERY 14 #define GTPV1_TV_RECOVERY_LENGTH 2 #define GTPV1_TV_SELECTION_MODE 15 #define GTPV1_TV_SELECTION_MODE_LENGTH 2 #define GTPV1_TV_TEID_DATA_I 16 #define GTPV1_TV_TEID_DATA_I_LENGTH 5 #define GTPV1_TV_TEID_CTRL 17 #define GTPV1_TV_TEID_CTRL_LENGTH 5 #define GTPV1_TV_TEID_DATA_II 18 #define GTPV1_TV_TEID_DATA_II_LENGTH 6 #define GTPV1_TV_TEARDOWN 19 #define GTPV1_TV_TEARDOWN_LENGTH 2 #define GTPV1_TV_NSAPI 20 #define GTPV1_TV_NSAPI_LENGTH 2 #define GTPV1_TV_RANAP 21 #define GTPV1_TV_RANAP_LENGTH 2 #define GTPV1_TV_RAB_CONTEXT 22 #define GTPV1_TV_RAB_CONTEXT_LENGTH 10 #define GTPV1_TV_RADIO_PRIORITY_SMS 23 #define GTPV1_TV_RADIO_PRI_SMS_LENGTH 2 #define GTPV1_TV_RADIO_PRIORITY 24 #define GTPV1_TV_RADIO_PRI_LENGTH 2 #define GTPV1_TV_PACKET_FLOW_ID 25 #define GTPV1_TV_PACKET_FLOW_ID_LENGTH 3 #define GTPV1_TV_CHARGING 26 #define GTPV1_TV_CHARGING_LENGTH 3 #define GTPV1_TV_TRACE_REFERENCE 27 #define GTPV1_TV_TRACE_REFERENCE_LENGTH 3 #define GTPV1_TV_TRACE_TYPE 28 #define GTPV1_TV_TRACE_TYPE_LENGTH 3 #define GTPV1_TV_MSNRR 29 #define GTPV1_TV_MSNRR_LENGTH 2 #define GTPV1_TV_PACKET_XFER_CMD 126 #define GTPV1_TV_PACKET_XFER_CMD_LENGTH 2 #define GTPV1_TV_CHARGING_ID 127 #define GTPV1_TV_CHARGING_ID_LENGTH 5 #define GTPV1_TLV_END_USER_ADDRESS 128 #define GTPV1_TLV_MM_CONTEXT 129 #define GTPV1_TLV_PDP_CONTEXT 130 #define GTPV1_TLV_ACCESS_POINT_NAME 131 #define GTPV1_TLV_PROTOCOL_CONFIG_OPTIONS 132 #define GTPV1_TLV_GSN_ADDRESS 133 #define GTPV1_TLV_MSISDN 134 #define GTPV1_TLV_QOS_PROFILE 135 #define GTPV1_TLV_AUTHENTICATION 136 #define GTPV1_TLV_TRAFFIC_FLOW 137 #define GTPV1_TLV_TARGET_IDENTIFICATION 138 #define GTPV1_TLV_UTRAN_CONTAINER 139 #define GTPV1_TLV_RAB_SETUP_INFORMATION 140 #define GTPV1_TLV_EXT_HEADER_TYPE_LIST 141 #define GTPV1_TLV_TRIGGER_ID 142 #define GTPV1_TLV_OMC_IDENTITY 143 #define GTPV1_TLV_RAN_CONTAINER 144 #define GTPV1_TLV_PDP_CONTEXT_PRIORITIZATION 145 #define GTPV1_TLV_ADDITIONAL_RAB_SETUP_INFO 146 #define GTPV1_TLV_SGSN_NUMBER 147 #define GTPV1_TLV_COMMON_FLAGS 148 #define GTPV1_TLV_APN_RESTRICTION 149 #define GTPV1_TLV_RADIO_PRIORITY_LCS 150 #define GTPV1_TLV_RAT_TYPE 151 #define GTPV1_TLV_USER_LOCATION_INFO 152 #define GTPV1_TLV_MS_TIME_ZONE 153 #define GTPV1_TLV_IMEI_SV 154 #define GTPV1_TLV_CAMEL_CHARGING_CONTAINER 155 #define GTPV1_TLV_MBMS_UE_CONTEXT 156 #define GTPV1_TLV_TMGI 157 #define GTPV1_TLV_RIM_ROUTING_ADDRESS 158 #define GTPV1_TLV_MBMS_PROTOCOL_CONFIG_OPTIONS 159 #define GTPV1_TLV_MBMS_SERVICE_AREA 160 #define GTPV1_TLV_SOURCE_RNC_PDCP_CONTEXT_INFO 161 #define GTPV1_TLV_ADDITIONAL_TRACE_INFO 162 #define GTPV1_TLV_HOP_COUNTER 163 #define GTPV1_TLV_SELECTED_PLMN_ID 164 #define GTPV1_TLV_MBMS_SESSION_IDENTIFIER 165 #define GTPV1_TLV_MBMS_2G_3G_INDICATOR 166 #define GTPV1_TLV_ENHANCED_NSAPI 167 #define GTPV1_TLV_MBMS_SESSION_DURATION 168 #define GTPV1_TLV_ADDITIONAL_MBMS_TRACE_INFO 169 #define GTPV1_TLV_MBMS_SESSION_REPITITION_NO 170 #define GTPV1_TLV_MBMS_TIME_TO_DATA_TRANSFER 171 #define GTPV1_TLV_PS_HANDOVER_REQUEST_CONTEXT 172 #define GTPV1_TLV_BSS_CONTAINER 173 #define GTPV1_TLV_CELL_IDENTIFICATION 174 #define GTPV1_TLV_PDU_NUMBERS 175 #define GTPV1_TLV_BSSGP_CAUSE 176 #define GTPV1_TLV_REQUIRED_MBMS_BEARER_CAP 177 #define GTPV1_TLV_RIM_ROUTING_ADDRESS_DISC 178 #define GTPV1_TLV_LIST_OF_SETUP_PFCS 179 #define GTPV1_TLV_PS_HANDOVER_XID_PARAMETERS 180 #define GTPV1_TLV_MS_INFO_CHANGE_REPORTING 181 #define GTPV1_TLV_DIRECT_TUNNEL_FLAGS 182 #define GTPV1_TLV_CORRELATION_ID 183 #define GTPV1_TLV_BEARER_CONTROL_MODE 184 #define GTPV1_TLV_MBMS_FLOW_IDENTIFIER 185 #define GTPV1_TLV_RELEASED_PACKETS 249 #define GTPV1_TLV_CANCELLED_PACKETS 250 #define GTPV1_TLV_CHARGING_GATEWAY_ADDRESS 251 #define GTPV1_TLV_DATA_RECORD_PACKET 252 #define GTPV1_TLV_REQUESTS_RESPONDED 253 #define GTPV1_TLV_ADDRESS_OF_RECOMMENDED_NODE 254 #define GTPV1_TLV_PRIVATE_EXTENSION 255 struct gtp_v0_hdr { u_int8_t flags; u_int8_t msgtype; u_int16_t length; u_int16_t seqno; u_int16_t flow; u_int8_t npduno; u_int8_t spare1; u_int8_t spare2; u_int8_t spare3; u_int64_t tid; } __packed; struct gtp_v0_prime_hdr { u_int8_t flags; u_int8_t msgtype; u_int16_t length; u_int16_t seqno; } __packed; struct gtp_v1_hdr { u_int8_t flags; u_int8_t msgtype; u_int16_t length; u_int32_t teid; } __packed; struct gtp_v1_hdr_ext { struct gtp_v1_hdr gh; u_int16_t seqno; u_int8_t npduno; u_int8_t nexthdr; } __packed; struct gtp_v1_prime_hdr { u_int8_t flags; u_int8_t msgtype; u_int16_t length; u_int16_t seqno; } __packed; static struct tok gtp_type[] = { { 0, "GTPv0" }, { 1, "GTPv0'" }, { 2, "GTPv1-C" }, { 3, "GTPv1-U" }, { 4, "GTPv1'" } }; static const char *gtp_rat_type[] = { NULL, "UTRAN", "GERAN", "WLAN", "GAN", "HSPA Evolution" }; static const char *gtp_packet_xfer_cmd[] = { NULL, "Send Data Record", "Send Duplicated Record", "Cancel Data Record", "Release Data Record" }; static const char *mbms_2g3g_indicator[] = { "2G Only", "3G Only", "2G and 3G" }; static const char *ms_info_change_rpt[] = { "Stop Reporting", "Start Reporting CGI/SAI", "Start Reporting RAI" }; #endif