/* packet-gtp.c * * Routines for GTP dissection * Copyright 2001, Michal Melerowicz * Nicolas Balkota * * $Id: packet-gtp.c,v 1.74 2004/03/30 18:14:22 guy Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include #include #include "prefs.h" #include "packet-gtp.h" #include "packet-ipv6.h" #include "packet-ppp.h" static dissector_table_t ppp_subdissector_table; #define GTPv0_PORT 3386 #define GTPv1C_PORT 2123 /* 3G Control PDU */ #define GTPv1U_PORT 2152 /* 3G T-PDU */ #define GTPv0_HDR_LENGTH 20 #define GTPv1_HDR_LENGTH 12 #define GTP_PRIME_HDR_LENGTH 6 /* to check compliance with ETSI */ #define GTP_MANDATORY 1 #define GTP_OPTIONAL 2 #define GTP_CONDITIONAL 4 static int g_gtpv0_port = GTPv0_PORT; static int g_gtpv1c_port = GTPv1C_PORT; static int g_gtpv1u_port = GTPv1U_PORT; void proto_reg_handoff_gtp(void); static int proto_gtp = -1; static int hf_gtp_apn = -1; static int hf_gtp_cause = -1; static int hf_gtp_chrg_char = -1; static int hf_gtp_chrg_char_s = -1; static int hf_gtp_chrg_char_n = -1; static int hf_gtp_chrg_char_p = -1; static int hf_gtp_chrg_char_f = -1; static int hf_gtp_chrg_char_h = -1; static int hf_gtp_chrg_char_r = -1; static int hf_gtp_chrg_id = -1; static int hf_gtp_chrg_ipv4 = -1; static int hf_gtp_chrg_ipv6 = -1; static int hf_gtp_ext_flow_label = -1; static int hf_gtp_ext_id = -1; static int hf_gtp_ext_val = -1; static int hf_gtp_flags = -1; static int hf_gtp_flags_ver = -1; static int hf_gtp_flags_pt = -1; static int hf_gtp_flags_spare1 = -1; static int hf_gtp_flags_snn = -1; static int hf_gtp_flags_spare2 = -1; static int hf_gtp_flags_e = -1; static int hf_gtp_flags_s = -1; static int hf_gtp_flags_pn = -1; static int hf_gtp_flow_ii = -1; static int hf_gtp_flow_label = -1; static int hf_gtp_flow_sig = -1; static int hf_gtp_gsn_addr_len = -1; static int hf_gtp_gsn_addr_type = -1; static int hf_gtp_gsn_ipv4 = -1; static int hf_gtp_gsn_ipv6 = -1; static int hf_gtp_imsi = -1; static int hf_gtp_length = -1; static int hf_gtp_map_cause = -1; static int hf_gtp_message_type = -1; static int hf_gtp_ms_reason = -1; static int hf_gtp_ms_valid = -1; static int hf_gtp_msisdn = -1; static int hf_gtp_next = -1; static int hf_gtp_npdu_number = -1; static int hf_gtp_node_ipv4 = -1; static int hf_gtp_node_ipv6 = -1; static int hf_gtp_nsapi = -1; static int hf_gtp_ptmsi = -1; static int hf_gtp_ptmsi_sig = -1; static int hf_gtp_qos_spare1 = -1; static int hf_gtp_qos_delay = -1; static int hf_gtp_qos_mean = -1; static int hf_gtp_qos_peak = -1; static int hf_gtp_qos_spare2 = -1; static int hf_gtp_qos_precedence = -1; static int hf_gtp_qos_spare3 = -1; static int hf_gtp_qos_reliability = -1; static int hf_gtp_qos_al_ret_priority = -1; static int hf_gtp_qos_traf_class = -1; static int hf_gtp_qos_del_order = -1; static int hf_gtp_qos_del_err_sdu = -1; static int hf_gtp_qos_max_sdu_size = -1; static int hf_gtp_qos_max_ul = -1; static int hf_gtp_qos_max_dl = -1; static int hf_gtp_qos_res_ber = -1; static int hf_gtp_qos_sdu_err_ratio = -1; static int hf_gtp_qos_trans_delay = -1; static int hf_gtp_qos_traf_handl_prio = -1; static int hf_gtp_qos_guar_ul = -1; static int hf_gtp_qos_guar_dl = -1; static int hf_gtp_pkt_flow_id = -1; static int hf_gtp_rab_gtpu_dn = -1; static int hf_gtp_rab_gtpu_up = -1; static int hf_gtp_rab_pdu_dn = -1; static int hf_gtp_rab_pdu_up = -1; static int hf_gtp_rai_mcc = -1; static int hf_gtp_rai_mnc = -1; static int hf_gtp_rai_rac = -1; static int hf_gtp_rai_lac = -1; static int hf_gtp_ranap_cause = -1; static int hf_gtp_recovery = -1; static int hf_gtp_reorder = -1; static int hf_gtp_rnc_ipv4 = -1; static int hf_gtp_rnc_ipv6 = -1; static int hf_gtp_rp = -1; static int hf_gtp_rp_nsapi = -1; static int hf_gtp_rp_sms = -1; static int hf_gtp_rp_spare = -1; static int hf_gtp_sel_mode = -1; static int hf_gtp_seq_number = -1; static int hf_gtp_sndcp_number = -1; static int hf_gtp_tear_ind = -1; static int hf_gtp_teid = -1; static int hf_gtp_teid_cp = -1; static int hf_gtp_teid_data = -1; static int hf_gtp_teid_ii = -1; static int hf_gtp_tft_code = -1; static int hf_gtp_tft_spare = -1; static int hf_gtp_tft_number = -1; static int hf_gtp_tft_eval = -1; static int hf_gtp_tid = -1; static int hf_gtp_tlli = -1; static int hf_gtp_tr_comm = -1; static int hf_gtp_trace_ref = -1; static int hf_gtp_trace_type = -1; static int hf_gtp_unknown = -1; static int hf_gtp_user_addr_pdp_org = -1; static int hf_gtp_user_addr_pdp_type = -1; static int hf_gtp_user_ipv4 = -1; static int hf_gtp_user_ipv6 = -1; /* Initialize the subtree pointers */ static gint ett_gtp = -1; static gint ett_gtp_flags = -1; static gint ett_gtp_ext = -1; static gint ett_gtp_rai = -1; static gint ett_gtp_qos = -1; static gint ett_gtp_auth_tri = -1; static gint ett_gtp_flow_ii = -1; static gint ett_gtp_rab_cntxt = -1; static gint ett_gtp_rp = -1; static gint ett_gtp_pkt_flow_id = -1; static gint ett_gtp_chrg_char = -1; static gint ett_gtp_user = -1; static gint ett_gtp_mm = -1; static gint ett_gtp_trip = -1; static gint ett_gtp_quint = -1; static gint ett_gtp_pdp = -1; static gint ett_gtp_apn = -1; static gint ett_gtp_proto = -1; static gint ett_gtp_gsn_addr = -1; static gint ett_gtp_tft = -1; static gint ett_gtp_tft_pf = -1; static gint ett_gtp_tft_flags = -1; static gint ett_gtp_rab_setup = -1; static gint ett_gtp_hdr_list = -1; static gint ett_gtp_chrg_addr = -1; static gint ett_gtp_node_addr = -1; static gint ett_gtp_rel_pack = -1; static gint ett_gtp_can_pack = -1; static gint ett_gtp_data_resp = -1; static gint ett_gtp_priv_ext = -1; static gboolean gtp_tpdu = TRUE; static gboolean gtp_etsi_order = FALSE; static int gtpv0_port = 0; static int gtpv1c_port = 0; static int gtpv1u_port = 0; /* Definition of flags masks */ #define GTP_VER_MASK 0xE0 static const value_string ver_types[] = { { 0, "GTP release 97/98 version" }, { 1, "GTP release 99 version" }, { 2, "None" }, { 3, "None" }, { 4, "None" }, { 5, "None" }, { 6, "None" }, { 7, "None" }, { 0, NULL } }; #define GTP_PT_MASK 0x10 #define GTP_SPARE1_MASK 0x0E #define GTP_SPARE2_MASK 0x08 #define GTP_E_MASK 0x04 #define GTP_S_MASK 0x02 #define GTP_SNN_MASK 0x01 #define GTP_PN_MASK 0x01 /* Definition of 3G charging characteristics masks */ #define GTP_MASK_CHRG_CHAR_S 0xF000 #define GTP_MASK_CHRG_CHAR_N 0x0800 #define GTP_MASK_CHRG_CHAR_P 0x0400 #define GTP_MASK_CHRG_CHAR_F 0x0200 #define GTP_MASK_CHRG_CHAR_H 0x0100 #define GTP_MASK_CHRG_CHAR_R 0x00FF /* Traffic Flow Templates mask */ #define GTPv1_TFT_CODE_MASK 0xE0 #define GTPv1_TFT_SPARE_MASK 0x10 #define GTPv1_TFT_NUMBER_MASK 0x0F /* Definition of GSN Address masks */ #define GTP_EXT_GSN_ADDR_TYPE_MASK 0xC0 #define GTP_EXT_GSN_ADDR_LEN_MASK 0x3F /* Definition of QoS masks */ #define GTP_EXT_QOS_SPARE1_MASK 0xC0 #define GTP_EXT_QOS_DELAY_MASK 0x38 #define GTP_EXT_QOS_RELIABILITY_MASK 0x07 #define GTP_EXT_QOS_PEAK_MASK 0xF0 #define GTP_EXT_QOS_SPARE2_MASK 0x08 #define GTP_EXT_QOS_PRECEDENCE_MASK 0x07 #define GTP_EXT_QOS_SPARE3_MASK 0xE0 #define GTP_EXT_QOS_MEAN_MASK 0x1F #define GTP_EXT_QOS_TRAF_CLASS_MASK 0xE0 #define GTP_EXT_QOS_DEL_ORDER_MASK 0x18 #define GTP_EXT_QOS_DEL_ERR_SDU_MASK 0x07 #define GTP_EXT_QOS_RES_BER_MASK 0xF0 #define GTP_EXT_QOS_SDU_ERR_RATIO_MASK 0x0F #define GTP_EXT_QOS_TRANS_DELAY_MASK 0xFC #define GTP_EXT_QOS_TRAF_HANDL_PRIORITY_MASK 0x03 /* Definition of Radio Priority's masks */ #define GTPv1_EXT_RP_NSAPI_MASK 0xF0 #define GTPv1_EXT_RP_SPARE_MASK 0x08 #define GTPv1_EXT_RP_MASK 0x07 /* definitions of GTP messages */ #define GTP_MSG_UNKNOWN 0x00 #define GTP_MSG_ECHO_REQ 0x01 #define GTP_MSG_ECHO_RESP 0x02 #define GTP_MSG_VER_NOT_SUPP 0x03 #define GTP_MSG_NODE_ALIVE_REQ 0x04 #define GTP_MSG_NODE_ALIVE_RESP 0x05 #define GTP_MSG_REDIR_REQ 0x06 #define GTP_MSG_REDIR_RESP 0x07 #define GTP_MSG_CREATE_PDP_REQ 0x10 #define GTP_MSG_CREATE_PDP_RESP 0x11 #define GTP_MSG_UPDATE_PDP_REQ 0x12 #define GTP_MSG_UPDATE_PDP_RESP 0x13 #define GTP_MSG_DELETE_PDP_REQ 0x14 #define GTP_MSG_DELETE_PDP_RESP 0x15 #define GTP_MSG_CREATE_AA_PDP_REQ 0x16 /* 2G */ #define GTP_MSG_CREATE_AA_PDP_RESP 0x17 /* 2G */ #define GTP_MSG_DELETE_AA_PDP_REQ 0x18 /* 2G */ #define GTP_MSG_DELETE_AA_PDP_RESP 0x19 /* 2G */ #define GTP_MSG_ERR_IND 0x1A #define GTP_MSG_PDU_NOTIFY_REQ 0x1B #define GTP_MSG_PDU_NOTIFY_RESP 0x1C #define GTP_MSG_PDU_NOTIFY_REJ_REQ 0x1D #define GTP_MSG_PDU_NOTIFY_REJ_RESP 0x1E #define GTP_MSG_SUPP_EXT_HDR 0x1F #define GTP_MSG_SEND_ROUT_INFO_REQ 0x20 #define GTP_MSG_SEND_ROUT_INFO_RESP 0x21 #define GTP_MSG_FAIL_REP_REQ 0x22 #define GTP_MSG_FAIL_REP_RESP 0x23 #define GTP_MSG_MS_PRESENT_REQ 0x24 #define GTP_MSG_MS_PRESENT_RESP 0x25 #define GTP_MSG_IDENT_REQ 0x30 #define GTP_MSG_IDENT_RESP 0x31 #define GTP_MSG_SGSN_CNTXT_REQ 0x32 #define GTP_MSG_SGSN_CNTXT_RESP 0x33 #define GTP_MSG_SGSN_CNTXT_ACK 0x34 #define GTP_MSG_FORW_RELOC_REQ 0x35 #define GTP_MSG_FORW_RELOC_RESP 0x36 #define GTP_MSG_FORW_RELOC_COMP 0x37 #define GTP_MSG_RELOC_CANCEL_REQ 0x38 #define GTP_MSG_RELOC_CANCEL_RESP 0x39 #define GTP_MSG_FORW_SRNS_CNTXT 0x3A #define GTP_MSG_FORW_RELOC_ACK 0x3B #define GTP_MSG_FORW_SRNS_CNTXT_ACK 0x3C #define GTP_MSG_DATA_TRANSF_REQ 0xF0 #define GTP_MSG_DATA_TRANSF_RESP 0xF1 #define GTP_MSG_TPDU 0xFF static const value_string message_type[] = { { GTP_MSG_UNKNOWN, "For future use" }, { GTP_MSG_ECHO_REQ, "Echo request" }, { GTP_MSG_ECHO_RESP, "Echo response" }, { GTP_MSG_VER_NOT_SUPP, "Version not supported" }, { GTP_MSG_NODE_ALIVE_REQ, "Node alive request" }, { GTP_MSG_NODE_ALIVE_RESP, "Node alive response" }, { GTP_MSG_REDIR_REQ, "Redirection request" }, { GTP_MSG_REDIR_RESP, "Redirection response" }, { GTP_MSG_CREATE_PDP_REQ, "Create PDP context request" }, { GTP_MSG_CREATE_PDP_RESP, "Create PDP context response" }, { GTP_MSG_UPDATE_PDP_REQ, "Update PDP context request" }, { GTP_MSG_UPDATE_PDP_RESP, "Update PDP context response" }, { GTP_MSG_DELETE_PDP_REQ, "Delete PDP context request" }, { GTP_MSG_DELETE_PDP_RESP, "Delete PDP context response" }, { GTP_MSG_CREATE_AA_PDP_REQ, "Create AA PDP Context Request" }, { GTP_MSG_CREATE_AA_PDP_RESP, "Create AA PDP Context Response" }, { GTP_MSG_DELETE_AA_PDP_REQ, "Delete AA PDP Context Request" }, { GTP_MSG_DELETE_AA_PDP_RESP, "Delete AA PDP Context Response" }, { GTP_MSG_ERR_IND, "Error indication" }, { GTP_MSG_PDU_NOTIFY_REQ, "PDU notification request" }, { GTP_MSG_PDU_NOTIFY_RESP, "PDU notification response" }, { GTP_MSG_PDU_NOTIFY_REJ_REQ, "PDU notification reject request" }, { GTP_MSG_PDU_NOTIFY_REJ_RESP, "PDU notification reject response" }, { GTP_MSG_SUPP_EXT_HDR, "Supported extension header notification" }, { GTP_MSG_SEND_ROUT_INFO_REQ, "Send routing information for GPRS request" }, { GTP_MSG_SEND_ROUT_INFO_RESP, "Send routing information for GPRS response" }, { GTP_MSG_FAIL_REP_REQ, "Failure report request" }, { GTP_MSG_FAIL_REP_RESP, "Failure report response" }, { GTP_MSG_MS_PRESENT_REQ, "Note MS GPRS present request" }, { GTP_MSG_MS_PRESENT_RESP, "Note MS GPRS present response" }, { GTP_MSG_IDENT_REQ, "Identification request" }, { GTP_MSG_IDENT_RESP, "Identification response" }, { GTP_MSG_SGSN_CNTXT_REQ, "SGSN context request" }, { GTP_MSG_SGSN_CNTXT_RESP, "SGSN context response" }, { GTP_MSG_SGSN_CNTXT_ACK, "SGSN context acknowledgement" }, { GTP_MSG_FORW_RELOC_REQ, "Forward relocation request" }, { GTP_MSG_FORW_RELOC_RESP, "Forward relocation response" }, { GTP_MSG_FORW_RELOC_COMP, "Forward relocation complete" }, { GTP_MSG_RELOC_CANCEL_REQ, "Relocation cancel request" }, { GTP_MSG_RELOC_CANCEL_RESP, "Relocation cancel response" }, { GTP_MSG_FORW_SRNS_CNTXT, "Forward SRNS context" }, { GTP_MSG_FORW_RELOC_ACK, "Forward relocation complete acknowledge" }, { GTP_MSG_FORW_SRNS_CNTXT_ACK, "Forward SRNS context acknowledge" }, { GTP_MSG_DATA_TRANSF_REQ, "Data record transfer request" }, { GTP_MSG_DATA_TRANSF_RESP, "Data record transfer response" }, { GTP_MSG_TPDU, "T-PDU" }, { 0, NULL } }; /* definitions of fields in extension header */ #define GTP_EXT_CAUSE 0x01 #define GTP_EXT_IMSI 0x02 #define GTP_EXT_RAI 0x03 #define GTP_EXT_TLLI 0x04 #define GTP_EXT_PTMSI 0x05 #define GTP_EXT_QOS_GPRS 0x06 #define GTP_EXT_REORDER 0x08 #define GTP_EXT_AUTH_TRI 0x09 #define GTP_EXT_MAP_CAUSE 0x0B #define GTP_EXT_PTMSI_SIG 0x0C #define GTP_EXT_MS_VALID 0x0D #define GTP_EXT_RECOVER 0x0E #define GTP_EXT_SEL_MODE 0x0F #define GTP_EXT_16 0x10 #define GTP_EXT_FLOW_LABEL 0x10 #define GTP_EXT_TEID 0x10 /* 0xFF10 3G */ #define GTP_EXT_17 0x11 #define GTP_EXT_FLOW_SIG 0x11 #define GTP_EXT_TEID_CP 0x11 /* 0xFF11 3G */ #define GTP_EXT_18 0x12 #define GTP_EXT_FLOW_II 0x12 #define GTP_EXT_TEID_II 0x12 /* 0xFF12 3G*/ #define GTP_EXT_19 0x13 #define GTP_EXT_MS_REASON 0x13 /* same as 0x1D GTPv1_EXT_MS_REASON */ #define GTP_EXT_TEAR_IND 0x13 /* 0xFF13 3G*/ #define GTP_EXT_NSAPI 0x14 /* 3G */ #define GTP_EXT_RANAP_CAUSE 0x15 /* 3G */ #define GTP_EXT_RAB_CNTXT 0x16 /* 3G */ #define GTP_EXT_RP_SMS 0x17 /* 3G */ #define GTP_EXT_RP 0x18 /* 3G */ #define GTP_EXT_PKT_FLOW_ID 0x19 /* 3G */ #define GTP_EXT_CHRG_CHAR 0x1A /* 3G */ #define GTP_EXT_TRACE_REF 0x1B /* 3G */ #define GTP_EXT_TRACE_TYPE 0x1C /* 3G */ #define GTPv1_EXT_MS_REASON 0x1D /* 3G */ #define GTP_EXT_TR_COMM 0x7E /* charging */ #define GTP_EXT_CHRG_ID 0x7F #define GTP_EXT_USER_ADDR 0x80 #define GTP_EXT_MM_CNTXT 0x81 #define GTP_EXT_PDP_CNTXT 0x82 #define GTP_EXT_APN 0x83 #define GTP_EXT_PROTO_CONF 0x84 #define GTP_EXT_GSN_ADDR 0x85 #define GTP_EXT_MSISDN 0x86 #define GTP_EXT_QOS_UMTS 0x87 /* 3G */ #define GTP_EXT_AUTH_QUI 0x88 /* 3G */ #define GTP_EXT_TFT 0x89 /* 3G */ #define GTP_EXT_TARGET_ID 0x8A /* 3G */ #define GTP_EXT_UTRAN_CONT 0x8B /* 3G */ #define GTP_EXT_RAB_SETUP 0x8C /* 3G */ #define GTP_EXT_HDR_LIST 0x8D /* 3G */ #define GTP_EXT_TRIGGER_ID 0x8E /* 3G */ #define GTP_EXT_OMC_ID 0x8F /* 3G */ #define GTP_EXT_C1 0xC1 #define GTP_EXT_C2 0xC2 #define GTP_EXT_REL_PACK 0xF9 /* charging */ #define GTP_EXT_CAN_PACK 0xFA /* charging */ #define GTP_EXT_CHRG_ADDR 0xFB #define GTP_EXT_DATA_REQ 0xFC /* charging */ #define GTP_EXT_DATA_RESP 0xFD /* charging */ #define GTP_EXT_NODE_ADDR 0xFE /* charging */ #define GTP_EXT_PRIV_EXT 0xFF static const value_string gtp_val[] = { { GTP_EXT_CAUSE, "Cause of operation" }, { GTP_EXT_IMSI, "IMSI" }, { GTP_EXT_RAI, "Routing Area Identity" }, { GTP_EXT_TLLI, "Temporary Logical Link Identity" }, { GTP_EXT_PTMSI, "Packet TMSI" }, { GTP_EXT_QOS_GPRS, "Quality of Service" }, { GTP_EXT_REORDER, "Reorder required" }, { GTP_EXT_AUTH_TRI, "Authentication triplets" }, { GTP_EXT_MAP_CAUSE, "MAP cause" }, { GTP_EXT_PTMSI_SIG, "P-TMSI signature" }, { GTP_EXT_MS_VALID, "MS validated" }, { GTP_EXT_RECOVER, "Recovery" }, { GTP_EXT_SEL_MODE, "Selection mode" }, { GTP_EXT_16, "Flow label data I" }, { GTP_EXT_FLOW_LABEL, "Flow label data I" }, { GTP_EXT_TEID, "Tunnel Endpoint Identifier Data I" }, /* 3G */ { GTP_EXT_17, "Flow label signalling" }, { GTP_EXT_FLOW_SIG, "Flow label signalling" }, { GTP_EXT_TEID_CP, "Tunnel Endpoint Identifier Data Control Plane" }, /* 3G */ { GTP_EXT_18, "Flow label data II" }, { GTP_EXT_FLOW_II, "Flow label data II" }, { GTP_EXT_TEID_II, "Tunnel Endpoint Identifier Data II" }, /* 3G */ { GTP_EXT_19, "MS not reachable reason" }, { GTP_EXT_MS_REASON, "MS not reachable reason" }, { GTP_EXT_TEAR_IND, "Teardown ID" }, /* 3G */ { GTP_EXT_NSAPI, "NSAPI" }, /* 3G */ { GTP_EXT_RANAP_CAUSE, "RANAP cause" }, /* 3G */ { GTP_EXT_RAB_CNTXT, "RAB context" }, /* 3G */ { GTP_EXT_RP_SMS, "Radio Priority for MO SMS" }, /* 3G */ { GTP_EXT_RP, "Radio Priority" }, /* 3G */ { GTP_EXT_PKT_FLOW_ID, "Packet Flow ID" }, /* 3G */ { GTP_EXT_CHRG_CHAR, "Charging characteristics" }, /* 3G */ { GTP_EXT_TRACE_REF, "Trace references" }, /* 3G */ { GTP_EXT_TRACE_TYPE, "Trace type" }, /* 3G */ { GTPv1_EXT_MS_REASON, "MS not reachable reason" }, /* 3G */ { GTP_EXT_TR_COMM, "Packet transfer command" }, /* charging */ { GTP_EXT_CHRG_ID, "Charging ID" }, { GTP_EXT_USER_ADDR, "End user address" }, { GTP_EXT_MM_CNTXT, "MM context" }, { GTP_EXT_PDP_CNTXT, "PDP context" }, { GTP_EXT_APN, "Access Point Name" }, { GTP_EXT_PROTO_CONF, "Protocol configuration options" }, { GTP_EXT_GSN_ADDR, "GSN address" }, { GTP_EXT_MSISDN, "MS international PSTN/ISDN number" }, { GTP_EXT_QOS_UMTS, "Quality of service (UMTS)" }, /* 3G */ { GTP_EXT_AUTH_QUI, "Authentication quintuplets" }, /* 3G */ { GTP_EXT_TFT, "Traffic Flow Template (TFT)" }, /* 3G */ { GTP_EXT_TARGET_ID, "Target (RNC) identification" }, /* 3G */ { GTP_EXT_UTRAN_CONT, "UTRAN transparent field" }, /* 3G */ { GTP_EXT_RAB_SETUP, "RAB setup information" }, /* 3G */ { GTP_EXT_HDR_LIST, "Extension Header Types List" }, /* 3G */ { GTP_EXT_TRIGGER_ID, "Trigger Id" }, /* 3G */ { GTP_EXT_OMC_ID, "OMC Identity" }, /* 3G */ { GTP_EXT_REL_PACK, "Sequence numbers of released packets IE" }, /* charging */ { GTP_EXT_CAN_PACK, "Sequence numbers of canceled packets IE" }, /* charging */ { GTP_EXT_CHRG_ADDR, "Charging Gateway address" }, { GTP_EXT_DATA_REQ, "Data record packet" }, /* charging */ { GTP_EXT_DATA_RESP, "Requests responded" }, /* charging */ { GTP_EXT_NODE_ADDR, "Address of recommended node" }, /* charging */ { GTP_EXT_PRIV_EXT, "Private Extension" }, { 0, NULL } }; /* GPRS: 9.60 v7.6.0, page 37 * UMTS: 29.060 v4.0, page 45 */ static const value_string cause_type[] = { { 0, "Request IMSI" }, { 1, "Request IMEI" }, { 2, "Request IMSI and IMEI" }, { 3, "No identity needed" }, { 4, "MS refuses" }, { 5, "MS is not GPRS responding" }, { 59, "System failure" }, /* charging */ { 60, "The transmit buffers are becoming full" }, /* charging */ { 61, "The receive buffers are becoming full" }, /* charging */ { 62, "Another node is about to go down" }, /* charging */ { 63, "This node is about to go down" }, /* charging */ { 128, "Request accepted" }, { 192, "Non-existent" }, { 193, "Invalid message format" }, { 194, "IMSI not known" }, { 195, "MS is GPRS detached" }, { 196, "MS is not GPRS responding" }, { 197, "MS refuses" }, { 198, "Version not supported" }, { 199, "No resource available" }, { 200, "Service not supported" }, { 201, "Mandatory IE incorrect" }, { 202, "Mandatory IE missing" }, { 203, "Optional IE incorrect" }, { 204, "System failure" }, { 205, "Roaming restriction" }, { 206, "P-TMSI signature mismatch" }, { 207, "GPRS connection suspended" }, { 208, "Authentication failure" }, { 209, "User authentication failed" }, { 210, "Context not found" }, { 211, "All PDP dynamic addresses are occupied" }, { 212, "No memory is available" }, { 213, "Relocation failure" }, { 214, "Unknown mandatory extension header" }, { 215, "Semantic error in the TFT operation" }, { 216, "Syntactic error in the TFT operation" }, { 217, "Semantic errors in packet filter(s)" }, { 218, "Syntactic errors in packet filter(s)" }, { 219, "Missing or unknown APN" }, { 220, "Unknown PDP address or PDP type" }, { 252, "Request related to possibly duplicated packets already fulfilled" }, /* charging */ { 253, "Request already fulfilled" }, /* charging */ { 254, "Sequence numbers of released/cancelled packets IE incorrect" }, /* charging */ { 255, "Request not fulfilled" }, /* charging */ { 0, NULL } }; /* GPRS: 9.02 v7.7.0 * UMTS: 29.002 v4.2.1, chapter 17.5, page 268 * TODO: Check if all map_cause values are included */ static const value_string map_cause_type[] = { { 1, "Unknown subscriber" }, { 8, "Roaming not allowed" }, { 10, "Bearer service not provisioned" }, { 11, "Teleservice not provisioned" }, { 13, "Call barred" }, { 21, "Facility not supported" }, { 23, "Update GPRS location" }, { 24, "Send routing info for GPRS" }, { 26, "Note MS present for GPRS" }, { 27, "Absent subscriber" }, { 34, "System failure" }, { 35, "Data missing" }, { 36, "Unexpected data value" }, { 44, "Number chenged" }, { 45, "Busy subscriber" }, { 46, "No subscriber reply" }, { 48, "Facility not allowed" }, { 0, NULL } }; static const value_string gsn_addr_type[] = { { 0x00, "IPv4" }, { 0x01, "IPv6" }, { 0, NULL }, }; static const value_string pdp_type[] = { { 0x00, "X.25" }, { 0x01, "PPP" }, { 0x02, "OSP:IHOSS" }, { 0x21, "IPv4" }, { 0x57, "IPv6" }, { 0, NULL } }; static const value_string pdp_org_type[] = { { 0, "ETSI" }, { 1, "IETF" }, { 0, NULL } }; static const value_string qos_delay_type[] = { { 0x00, "Subsribed delay class (in MS to network direction)" }, { 0x01, "Delay class 1" }, { 0x02, "Delay class 2" }, { 0x03, "Delay class 3" }, { 0x04, "Delay class 4 (best effort)" }, { 0x07, "Reserved" }, { 0, NULL } }; static const value_string qos_reliability_type[] = { { 0x00, "Subscribed reliability class (in MS to network direction)" }, { 0x01, "Ack GTP/LLC/RLC, Protected data" }, { 0x02, "Unack GTP, Ack LLC/RLC, Protected data" }, { 0x03, "Unack GTP/LLC, Ack RLC, Protected data" }, { 0x04, "Unack GTP/LLC/RLC, Protected data" }, { 0x05, "Unack GTP/LLC/RLC, Unprotected data" }, { 0x07, "Reserved" }, { 0, NULL } }; static const value_string qos_peak_type[] = { { 0x00, "Subscribed peak throughput (in MS to network direction)" }, { 0x01, "Up to 1 000 oct/s" }, { 0x02, "Up to 2 000 oct/s" }, { 0x03, "Up to 4 000 oct/s" }, { 0x04, "Up to 8 000 oct/s" }, { 0x05, "Up to 16 000 oct/s" }, { 0x06, "Up to 32 000 oct/s" }, { 0x07, "Up to 64 000 oct/s" }, { 0x08, "Up to 128 000 oct/s" }, { 0x09, "Up to 256 000 oct/s" }, /* QoS Peak throughput classes from 0x0A to 0x0F (from 10 to 15) are subscribed */ { 0x0A, "Reserved" }, { 0x0B, "Reserved" }, { 0x0C, "Reserved" }, { 0x0D, "Reserved" }, { 0x0E, "Reserved" }, { 0x0F, "Reserved" }, { 0, NULL } }; static const value_string qos_precedence_type[] = { { 0x00, "Subscribed precedence (in MS to network direction)" }, { 0x01, "High priority" }, { 0x02, "Normal priority" }, { 0x03, "Low priority" }, { 0x07, "Reserved" }, { 0, NULL } }; static const value_string qos_mean_type[] = { { 0x00, "Subscribed mean throughput (in MS to network direction)" }, { 0x01, "100 oct/h" }, /* Class 2 */ { 0x02, "200 oct/h" }, /* Class 3 */ { 0x03, "500 oct/h" }, /* Class 4 */ { 0x04, "1 000 oct/h" }, /* Class 5 */ { 0x05, "2 000 oct/h" }, /* Class 6 */ { 0x06, "5 000 oct/h" }, /* Class 7 */ { 0x07, "10 000 oct/h" }, /* Class 8 */ { 0x08, "20 000 oct/h" }, /* Class 9 */ { 0x09, "50 000 oct/h" }, /* Class 10 */ { 0x0A, "100 000 oct/h" }, /* Class 11 */ { 0x0B, "200 000 oct/h" }, /* Class 12 */ { 0x0C, "500 000 oct/h" }, /* Class 13 */ { 0x0D, "1 000 000 oct/h" }, /* Class 14 */ { 0x0E, "2 000 000 oct/h" }, /* Class 15 */ { 0x0F, "5 000 000 oct/h" }, /* Class 16 */ { 0x10, "10 000 000 oct/h" }, /* Class 17 */ { 0x11, "20 000 000 oct/h" }, /* Class 18 */ { 0x12, "50 000 000 oct/h" }, /* Class 19 */ /* QoS Mean throughput classes from 0x13 to 0x1E (from 19 to 30) are subscribed */ { 0x13, "Reserved" }, { 0x14, "Reserved" }, { 0x15, "Reserved" }, { 0x16, "Reserved" }, { 0x17, "Reserved" }, { 0x18, "Reserved" }, { 0x19, "Reserved" }, { 0x1A, "Reserved" }, { 0x1B, "Reserved" }, { 0x1C, "Reserved" }, { 0x1D, "Reserved" }, { 0x1E, "Reserved" }, { 0x1F, "Best effort" }, /* Class 1 */ { 0, NULL } }; static const value_string qos_del_err_sdu[] = { { 0x00, "Subscribed delivery of erroneous SDUs (in MS to network direction)" }, { 0x01, "No detect ('-')" }, { 0x02, "Erroneous SDUs are delivered ('yes')" }, { 0x03, "Erroneous SDUs are not delivered ('no')" }, { 0x07, "Reserved" }, /* All other values are reserved */ { 0, NULL } }; static const value_string qos_del_order[] = { { 0x00, "Subscribed delivery order (in MS to network direction)" }, { 0x01, "With delivery order ('yes')" }, { 0x02, "Without delivery order ('no')" }, { 0x03, "Reserved" }, /* All other values are reserved */ { 0, NULL } }; static const value_string qos_traf_class[] = { { 0x00, "Subscribed traffic class (in MS to network direction)" }, { 0x01, "Conversational class" }, { 0x02, "Streaming class" }, { 0x03, "Interactive class" }, { 0x04, "Background class" }, { 0x07, "Reserved" }, /* All other values are reserved */ { 0, NULL } }; static const value_string qos_max_sdu_size[] = { { 0x00, "Subscribed maximum SDU size (in MS to network direction" }, /* For values from 0x01 to 0x96 (from 1 to 150), use a granularity of 10 octets */ { 0x97, "1502 octets" }, { 0x98, "1510 octets" }, { 0x99, "1520 octets" }, { 0, NULL } /* All other values are reserved */ }; static const value_string qos_max_ul[] = { { 0x00, "Subscribed maximum bit rate for uplink (in MS to network direction)" }, /* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */ /* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */ /* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */ { 0xFF, "0 kbps" }, { 0, NULL } }; static const value_string qos_max_dl[] = { { 0x00, "Subscribed maximum bit rate for downlink (in MS to network direction)" }, /* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */ /* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */ /* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */ { 0xFF, "0 kbps" }, { 0, NULL } }; static const value_string qos_res_ber[] = { { 0x00, "Subscribed residual BER (in MS to network direction)" }, { 0x01, "1/20 = 5x10^-2" }, { 0x02, "1/100 = 1x10^-2" }, { 0x03, "1/200 = 5x10^-3" }, { 0x04, "1/250 = 4x10^-3" }, { 0x05, "1/1 000 = 1x10^-3" }, { 0x06, "1/10 000 = 1x10^-4" }, { 0x07, "1/100 000 = 1x10^-5" }, { 0x08, "1/1 000 000 = 1x10^-6" }, { 0x09, "3/50 000 000 = 6x10^-8" }, { 0x0F, "Reserved" }, /* All other values are reserved */ { 0, NULL } }; static const value_string qos_sdu_err_ratio[] = { { 0x00, "Subscribed SDU error ratio (in MS to network direction)" }, { 0x01, "1/100 = 1x10^-2" }, { 0x02, "7/1000 = 7x10^-3" }, { 0x03, "1/1 000 = 1x10^-3" }, { 0x04, "1/10 000 = 1x10^-4" }, { 0x05, "1/100 000 = 1x10^-5" }, { 0x06, "1/1 000 000 = 1x10^-6" }, { 0x07, "1/10 = 1x10^-1" }, { 0x0F, "Reserved" }, /* All other values are reserved */ { 0, NULL } }; static const value_string qos_traf_handl_prio[] = { { 0x00, "Subscribed traffic handling priority (in MS to network direction)" }, { 0x01, "Priority level 1" }, { 0x02, "Priority level 2" }, { 0x03, "Priority level 3" }, { 0, NULL } }; static const value_string qos_trans_delay[] = { { 0x00, "Subscribed Transfer Delay (in MS to network direction)" }, { 0x01, "10 ms" }, /* Using a granularity of 10 ms */ { 0x02, "20 ms" }, { 0x03, "30 ms" }, { 0x04, "40 ms" }, { 0x05, "50 ms" }, { 0x06, "60 ms" }, { 0x07, "70 ms" }, { 0x08, "80 ms" }, { 0x09, "90 ms" }, { 0x0A, "100 ms" }, { 0x0B, "110 ms" }, { 0x0C, "120 ms" }, { 0x0D, "130 ms" }, { 0x0E, "140 ms" }, { 0x0F, "150 ms" }, { 0x10, "200 ms" }, /* (For values from 0x10 to 0x1F, value = 200 ms + (value - 0x10) * 50 ms */ { 0x11, "250 ms" }, { 0x12, "300 ms" }, { 0x13, "350 ms" }, { 0x14, "400 ms" }, { 0x15, "450 ms" }, { 0x16, "500 ms" }, { 0x17, "550 ms" }, { 0x18, "600 ms" }, { 0x19, "650 ms" }, { 0x1A, "700 ms" }, { 0x1B, "750 ms" }, { 0x1C, "800 ms" }, { 0x1D, "850 ms" }, { 0x1E, "900 ms" }, { 0x1F, "950 ms" }, { 0x20, "1000 ms" }, /* For values from 0x20 to 0x3E, value = 1000 ms + (value - 0x20) * 100 ms */ { 0x21, "1100 ms" }, { 0x22, "1200 ms" }, { 0x23, "1300 ms" }, { 0x24, "1400 ms" }, { 0x25, "1500 ms" }, { 0x26, "1600 ms" }, { 0x27, "1700 ms" }, { 0x28, "1800 ms" }, { 0x29, "1900 ms" }, { 0x2A, "2000 ms" }, { 0x2B, "2100 ms" }, { 0x2C, "2200 ms" }, { 0x2D, "2300 ms" }, { 0x2E, "2400 ms" }, { 0x2F, "2500 ms" }, { 0x30, "2600 ms" }, { 0x31, "2700 ms" }, { 0x32, "2800 ms" }, { 0x33, "2900 ms" }, { 0x34, "3000 ms" }, { 0x35, "3100 ms" }, { 0x36, "3200 ms" }, { 0x37, "3300 ms" }, { 0x38, "3400 ms" }, { 0x39, "3500 ms" }, { 0x3A, "3600 ms" }, { 0x3B, "3700 ms" }, { 0x3C, "3800 ms" }, { 0x3D, "3900 ms" }, { 0x3E, "4000 ms" }, { 0x3F, "Reserved"}, { 0, NULL } }; static const value_string qos_guar_ul[] = { { 0x00, "Subscribed guaranteed bit rate for uplink (in MS to network direction)" }, /* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */ /* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */ /* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */ { 0xFF, "0 kbps" }, { 0, NULL } }; static const value_string qos_guar_dl[] = { { 0x00, "Subscribed guaranteed bit rate for downlink (in MS to network direction)" }, /* For values from 0x01 to 0x3F (from 1 to 63), use a granularity of 1 kbps */ /* For values from 0x40 to 0x7F, value = 64 kbps + (value - 0x40) * 8 kbps */ /* For values from 0x80 to 0xFE, value = 576 kbps + (value - 0x80) * 64 kbps */ { 0xFF, "0 kbps" }, { 0, NULL } }; static const value_string sel_mode_type[] = { { 0, "MS or network provided APN, subscribed verified" }, { 1, "MS provided APN, subscription not verified" }, { 2, "Network provided APN, subscription not verified" }, { 3, "For future use (Network provided APN, subscription not verified" },/* Shall not be sent. If received, shall be sent as value 2 */ { 0, NULL } }; static const value_string tr_comm_type[] = { { 1, "Send data record packet" }, { 2, "Send possibly duplicated data record packet" }, { 3, "Cancel data record packet" }, { 4, "Release data record packet"}, { 0, NULL } }; /* TODO: CHeck if all ms_reasons are included */ static const value_string ms_not_reachable_type[] = { { 0, "No paging response via the MSC" }, { 1, "IMSI detached" }, { 2, "Roaming restriction" }, { 3, "Deregistered in the HLR for non GPRS" }, { 4, "MS purge for non GPRS" }, { 5, "No paging response via the SGSN" }, { 6, "GPRS detached" }, { 7, "Deregistered in the HLR for non GPRS" }, { 8, "MS purged for GPRS" }, { 9, "Unidentified subscriber via the MSC" }, { 10, "Unidentified subscriber via the SGSN" }, { 0, NULL } }; /* UMTS: 25.413 v3.4.0, chapter 9.2.1.4, page 80 */ static const value_string ranap_cause_type[] = { /* Radio Network Layer Cause (1-->64) */ { 1, "RAB preempted" }, { 2, "Trelocoverall Expiry" }, { 3, "Trelocprep Expiry" }, { 4, "Treloccomplete Expiry" }, { 5, "Tqueing Expiry" }, { 6, "Relocation Triggered" }, { 7, "TRELOCalloc Expiry" }, { 8, "Unable to Estabish During Relocation" }, { 9, "Unknown Target RNC" }, { 10, "Relocation Cancelled" }, { 11, "Successful Relocation" }, { 12, "Requested Ciphering and/or Integrity Protection Algorithms not Supported" }, { 13, "Change of Ciphering and/or Integrity Protection is not supported" }, { 14, "Failure in the Radio Interface Procedure" }, { 15, "Release due to UTRAN Generated Reason" }, { 16, "User Inactivity" }, { 17, "Time Critical Relocation" }, { 18, "Requested Traffic Class not Available" }, { 19, "Invalid RAB Parameters Value" }, { 20, "Requested Maximum Bit Rate not Available" }, { 21, "Requested Guaranteed Bit Rate not Available" }, { 22, "Requested Transfer Delay not Achievable" }, { 23, "Invalid RAB Parameters Combination" }, { 24, "Condition Violation for SDU Parameters" }, { 25, "Condition Violation for Traffic Handling Priority" }, { 26, "Condition Violation for Guaranteed Bit Rate" }, { 27, "User Plane Versions not Supported" }, { 28, "Iu UP Failure" }, { 29, "Relocation Failure in Target CN/RNC or Target System" }, { 30, "Invalid RAB ID" }, { 31, "No Remaining RAB" }, { 32, "Interaction with other procedure" }, { 33, "Requested Maximum Bit Rate for DL not Available" }, { 34, "Requested Maximum Bit Rate for UL not Available" }, { 35, "Requested Guaranteed Bit Rate for DL not Available" }, { 36, "Requested Guaranteed Bit Rate for UL not Available" }, { 37, "Repeated Integrity Checking Failure" }, { 38, "Requested Report Type not supported" }, { 39, "Request superseded" }, { 40, "Release due to UE generated signalling connection release" }, { 41, "Resource Optimisation Relocation" }, { 42, "Requested Information Not Available" }, { 43, "Relocation desirable for radio reasons" }, { 44, "Relocation not supported in Target RNC or Target System" }, { 45, "Directed Retry" }, { 46, "Radio Connection With UE Lost" }, /* Transport Layer Cause (65-->80) */ { 65, "Signalling Transport Resource Failure" }, { 66, "Iu Transport Connection Failed to Establish" }, /* NAS Cause (81-->96) */ { 81, "User Restriction Start Indication" }, { 82, "User Restriction End Indication" }, { 83, "Normal Release" }, /* Protocol Cause (97-->112) */ { 97, "Transfer Syntax Error" }, { 98, "Semantic Error" }, { 99, "Message not compatible with receiver state" }, { 100, "Abstract Syntax Error (Reject)" }, { 101, "Abstract Syntax Error (Ignore and Notify)" }, { 102, "Abstract Syntax Error (Falsely Constructed Message" }, /* Miscellaneous Cause (113-->128) */ { 113, "O & M Intervention" }, { 114, "No Resource Available" }, { 115, "Unspecified Failure" }, { 116, "Network Opimisation" }, /* Non-standard Cause (129-->255) */ { 0, NULL } }; static const value_string mm_sec_modep[] = { { 0, "Used cipher value, UMTS keys and Quintuplets" }, { 1, "GSM key and triplets" }, { 2, "UMTS key and quintuplets" }, { 3, "GSM key and quintuplets" }, { 0, NULL } }; #define MM_PROTO_GROUP_CALL_CONTROL 0x00 #define MM_PROTO_BROADCAST_CALL_CONTROL 0x01 #define MM_PROTO_PDSS1 0x02 #define MM_PROTO_CALL_CONTROL 0x03 #define MM_PROTO_PDSS2 0x04 #define MM_PROTO_MM_NON_GPRS 0x05 #define MM_PROTO_RR_MGMT 0x06 #define MM_PROTO_MM_GPRS 0x08 #define MM_PROTO_SMS 0x09 #define MM_PROTO_SESSION_MGMT 0x0A #define MM_PROTO_NON_CALL_RELATED 0x0B static const value_string mm_proto_disc[] = { { MM_PROTO_GROUP_CALL_CONTROL, "Group call control" }, { MM_PROTO_BROADCAST_CALL_CONTROL, "Broadcast call control" }, { MM_PROTO_PDSS1, "PDSS1" }, { MM_PROTO_CALL_CONTROL, "Call control; call related SS messages" }, { MM_PROTO_PDSS2, "PDSS2" }, { MM_PROTO_MM_NON_GPRS, "Mobility Management messages for non-GPRS services" }, { MM_PROTO_RR_MGMT, "Radio Resource management messages" }, { MM_PROTO_MM_GPRS, "Mobility Management messages for GPRS services" }, { MM_PROTO_SMS, "SMS" }, { MM_PROTO_SESSION_MGMT, "Session Management messages" }, { MM_PROTO_NON_CALL_RELATED, "Non-call related SS messages" }, { 0, NULL } }; static const value_string mm_rr_mess[] = { { 0x3C, "RR initialization request" }, { 0x3B, "Additional assignment" }, { 0x3F, "Immediate assignment" }, { 0x39, "Immediate assignment extended" }, { 0x3A, "Immediate assignment reject" }, { 0x35, "Ciphering mode command" }, { 0x32, "Ciphering mode complete" }, { 0x30, "Configuration change command" }, { 0x31, "Configuration change ack" }, { 0x33, "Configuration change reject" }, { 0x2E, "Assignment command" }, { 0x29, "Assignment complete" }, { 0x2F, "Assigment failure" }, { 0x2B, "Handover command" }, { 0x2C, "Handover complete" }, { 0x28, "Handover failure" }, { 0x2D, "Physical information" }, { 0x08, "RR-cell change order" }, { 0x23, "PDCH assignment command" }, { 0x0D, "Channel release" }, { 0x0A, "Partial release" }, { 0x0F, "PArtial release complete" }, { 0x21, "Paging request type 1" }, { 0x22, "Paging request type 2" }, { 0x24, "Paging request type 3" }, { 0x27, "Paging response" }, { 0x20, "Notification/NCH" }, { 0x25, "Notification/FACCH" }, { 0x26, "Reserved" }, { 0x0B, "Reserved" }, { 0x18, "System information type 8" }, { 0x19, "System information type 1" }, { 0x1A, "System information type 2" }, { 0x1B, "System information type 3" }, { 0x1C, "System information type 4" }, { 0x1D, "System information type 5" }, { 0x1E, "System information type 6" }, { 0x1F, "System information type 7" }, { 0x02, "System information type 2bis" }, { 0x03, "System information type 2ter" }, { 0x05, "System information type 5bis" }, { 0x06, "System information type 5ter" }, { 0x04, "System information 9" }, { 0x00, "System information 13" }, { 0x01, "System information 14" }, { 0x3D, "System information type 16" }, { 0x3E, "System information type 17" }, { 0x10, "Channel mode modify" }, { 0x12, "RR status" }, { 0x17, "Channel mode modify ack" }, { 0x14, "Frequency redefinition" }, { 0x15, "Measurement report" }, { 0x16, "Classmark change" }, { 0x13, "Classmark enquiry" }, { 0x36, "Extended measurement report" }, { 0x37, "Extended measurement order" }, { 0x34, "GPRS suspension request" }, { 0x09, "VGCS uplink grant" }, { 0x0E, "Uplink release" }, { 0x0C, "Uplink free" }, { 0x2A, "Uplink busy" }, { 0x11, "Talker indication" }, { 0, NULL } }; static const value_string mm_mm_mess[] = { { 0x01, "IMSI DETACH INDICATION" }, { 0x02, "LOCATION UPDATING ACCEPT" }, { 0x04, "LOCATION UPDATING REJECT" }, { 0x08, "LOCATION UPDATING REQUEST" }, { 0x11, "AUTHENTICATION REJECT" }, { 0x12, "AUTHENTICATION REQUEST" }, { 0x14, "AUTHENTICATION RESPONSE" }, { 0x18, "IDENTITY REQUEST" }, { 0x19, "IDENTITY RESPONSE" }, { 0x1A, "TMSI REALLOCATION COMMAND" }, { 0x1B, "TMSI REALLOCATION COMPLETE" }, { 0x21, "CM SERVICE ACCEPT" }, { 0x22, "CM SERVICE REJECT" }, { 0x23, "CM SERVICE ABORT" }, { 0x24, "CM SERVICE REQUEST" }, { 0x25, "CM SERVICE PROMPT" }, { 0x26, "NOTIFICATION RESPONSE" }, { 0x28, "CM RE-ESTABLISHMENT REQUEST" }, { 0x29, "ABORT" }, { 0x30, "MM NULL" }, { 0x31, "MM STATUS" }, { 0x32, "MM INFORMATION" }, { 0, NULL } }; static const value_string mm_cc_mess[] = { { 0x00, "escape to nationally specific" }, /*{ 0 x 0 0, "- - - Call establishment messages:" },*/ { 0x01, "ALERTING" }, { 0x08, "CALL CONFIRMED" }, { 0x02, "CALL PROCEEDING" }, { 0x07, "CONNECT" }, { 0x0F, "CONNECT ACKNOWLEDGE" }, { 0x0E, "EMERGENCY SETUP" }, { 0x03, "PROGRESS" }, { 0x04, "CC-ESTABLISHMENT" }, { 0x06, "CC-ESTABLISHMENT CONFIRMED" }, { 0x0B, "RECALL" }, { 0x09, "START CC" }, { 0x05, "SETUP" }, /*{ 0 x 0 1, "- - - Call information phase messages:" },*/ { 0x17, "MODIFY" }, { 0x1F, "MODIFY COMPLETE" }, { 0x13, "MODIFY REJECT" }, { 0x10, "USER INFORMATION" }, { 0x18, "HOLD" }, { 0x19, "HOLD ACKNOWLEDGE" }, { 0x1A, "HOLD REJECT" }, { 0x1C, "RETRIEVE" }, { 0x1D, "RETRIEVE ACKNOWLEDGE" }, { 0x1E, "RETRIEVE REJECT" }, /*{ 0 x 1 0, "- - - Call clearing messages:" },*/ { 0x25, "DISCONNECT" }, { 0x2D, "RELEASE" }, { 0x2A, "RELEASE COMPLETE" }, /*{ 0 x 1 1, "- - - Miscellaneous messages:" },*/ { 0x39, "CONGESTION CONTROL" }, { 0x3E, "NOTIFY" }, { 0x3D, "STATUS" }, { 0x34, "STATUS ENQUIRY" }, { 0x35, "START DTMF" }, { 0x31, "STOP DTMF" }, { 0x32, "STOP DTMF ACKNOWLEDGE" }, { 0x36, "START DTMF ACKNOWLEDGE" }, { 0x37, "START DTMF REJECT" }, { 0x3A, "FACILITY" }, { 0, NULL } }; static const value_string mm_gprs_mess[] = { { 0x01, "Attach request" }, { 0x02, "Attach accept" }, { 0x03, "Attach complete" }, { 0x04, "Attach reject" }, { 0x05, "Detach request" }, { 0x06, "Detach accept" }, { 0x08, "Routing area update request" }, { 0x09, "Routing area update accept" }, { 0x0A, "Routing area update complete" }, { 0x0B, "Routing area update reject" }, { 0x10, "P-TMSI reallocation command" }, { 0x11, "P-TMSI reallocation complete" }, { 0x12, "Authentication and ciphering req" }, { 0x13, "Authentication and ciphering resp" }, { 0x14, "Authentication and ciphering rej" }, { 0x15, "Identity request" }, { 0x16, "Identity response" }, { 0x20, "GMM status" }, { 0x21, "GMM information" }, { 0, NULL } }; static const value_string tft_code_type[] = { { 0, "Spare" }, { 1, "Create new TFT" }, { 2, "Delete existing TFT" }, { 3, "Add packet filters to existing TFT" }, { 4, "Replace packet filters in existing TFT" }, { 5, "Delete packet filters from existing TFT" }, { 6, "Reserved" }, { 7, "Reserved" }, { 0, NULL } }; static dissector_handle_t ip_handle; static dissector_handle_t ipv6_handle; static dissector_handle_t ppp_handle; static dissector_handle_t data_handle; static dissector_handle_t gtpcdr_handle; static int decode_gtp_cause (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_imsi (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_rai (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_tlli (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_ptmsi (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_qos_gprs (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_reorder (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_auth_tri (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_map_cause (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_ptmsi_sig (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_ms_valid (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_recovery (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_sel_mode (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_16 (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_17 (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_18 (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_19 (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_nsapi (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_ranap_cause (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_rab_cntxt (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_rp_sms (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_rp (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_pkt_flow_id (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_chrg_char (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_trace_ref (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_trace_type (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_ms_reason (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_tr_comm (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_chrg_id (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_user_addr (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_mm_cntxt (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_pdp_cntxt (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_apn (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_gsn_addr (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_proto_conf (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_msisdn (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_qos_umts (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_auth_qui (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_tft (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_target_id (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_utran_cont (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_rab_setup (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_hdr_list (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_trigger_id (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_omc_id (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_chrg_addr (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_rel_pack (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_can_pack (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_data_req (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_data_resp (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_node_addr (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_priv_ext (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); static int decode_gtp_unknown (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree); typedef struct _gtp_opt { int optcode; int (*decode)(tvbuff_t *, int, packet_info *, proto_tree *); } gtp_opt_t; static const gtp_opt_t gtpopt[] = { { GTP_EXT_CAUSE, decode_gtp_cause }, { GTP_EXT_IMSI, decode_gtp_imsi }, { GTP_EXT_RAI, decode_gtp_rai }, { GTP_EXT_TLLI, decode_gtp_tlli }, { GTP_EXT_PTMSI, decode_gtp_ptmsi }, { GTP_EXT_QOS_GPRS, decode_gtp_qos_gprs }, { GTP_EXT_REORDER, decode_gtp_reorder }, { GTP_EXT_AUTH_TRI, decode_gtp_auth_tri }, { GTP_EXT_MAP_CAUSE, decode_gtp_map_cause }, { GTP_EXT_PTMSI_SIG, decode_gtp_ptmsi_sig }, { GTP_EXT_MS_VALID, decode_gtp_ms_valid }, { GTP_EXT_RECOVER, decode_gtp_recovery }, { GTP_EXT_SEL_MODE, decode_gtp_sel_mode }, { GTP_EXT_16, decode_gtp_16 }, { GTP_EXT_17, decode_gtp_17 }, { GTP_EXT_18, decode_gtp_18 }, { GTP_EXT_19, decode_gtp_19 }, { GTP_EXT_NSAPI, decode_gtp_nsapi }, { GTP_EXT_RANAP_CAUSE, decode_gtp_ranap_cause }, { GTP_EXT_RAB_CNTXT, decode_gtp_rab_cntxt }, { GTP_EXT_RP_SMS, decode_gtp_rp_sms }, { GTP_EXT_RP, decode_gtp_rp }, { GTP_EXT_PKT_FLOW_ID, decode_gtp_pkt_flow_id }, { GTP_EXT_CHRG_CHAR, decode_gtp_chrg_char }, { GTP_EXT_TRACE_REF, decode_gtp_trace_ref }, { GTP_EXT_TRACE_TYPE, decode_gtp_trace_type }, { GTPv1_EXT_MS_REASON, decode_gtp_ms_reason }, { GTP_EXT_TR_COMM, decode_gtp_tr_comm }, { GTP_EXT_CHRG_ID, decode_gtp_chrg_id }, { GTP_EXT_USER_ADDR, decode_gtp_user_addr }, { GTP_EXT_MM_CNTXT, decode_gtp_mm_cntxt }, { GTP_EXT_PDP_CNTXT, decode_gtp_pdp_cntxt }, { GTP_EXT_APN, decode_gtp_apn }, { GTP_EXT_PROTO_CONF, decode_gtp_proto_conf }, { GTP_EXT_GSN_ADDR, decode_gtp_gsn_addr }, { GTP_EXT_MSISDN, decode_gtp_msisdn }, { GTP_EXT_QOS_UMTS, decode_gtp_qos_umts }, /* 3G */ { GTP_EXT_AUTH_QUI, decode_gtp_auth_qui }, /* 3G */ { GTP_EXT_TFT, decode_gtp_tft }, /* 3G */ { GTP_EXT_TARGET_ID, decode_gtp_target_id }, /* 3G */ { GTP_EXT_UTRAN_CONT, decode_gtp_utran_cont }, /* 3G */ { GTP_EXT_RAB_SETUP, decode_gtp_rab_setup }, /* 3G */ { GTP_EXT_HDR_LIST, decode_gtp_hdr_list }, /* 3G */ { GTP_EXT_TRIGGER_ID, decode_gtp_trigger_id }, /* 3G */ { GTP_EXT_OMC_ID, decode_gtp_omc_id }, /* 3G */ { GTP_EXT_REL_PACK, decode_gtp_rel_pack }, /* charging */ { GTP_EXT_CAN_PACK, decode_gtp_can_pack }, /* charging */ { GTP_EXT_CHRG_ADDR, decode_gtp_chrg_addr }, { GTP_EXT_DATA_REQ, decode_gtp_data_req }, /* charging */ { GTP_EXT_DATA_RESP, decode_gtp_data_resp }, /* charging */ { GTP_EXT_NODE_ADDR, decode_gtp_node_addr }, { GTP_EXT_PRIV_EXT, decode_gtp_priv_ext }, { 0, decode_gtp_unknown } }; struct _gtp_hdr { guint8 flags; guint8 message; guint16 length; }; static guint8 gtp_version = 0; static char *yesno[] = { "no", "yes" }; static void col_append_str_gtp(column_info *cinfo, gint el, gchar *proto_name) { int i; int max_len; gchar _tmp[COL_MAX_LEN]; max_len = COL_MAX_LEN; for (i = 0; i < cinfo->num_cols; i++) { if (cinfo->fmt_matx[i][el]) { if (cinfo->col_data[i] != cinfo->col_buf[i]) { strncpy(cinfo->col_buf[i], cinfo->col_data[i], max_len); cinfo->col_buf[i][max_len - 1] = '\0'; } _tmp[0] = '\0'; strcat(_tmp, proto_name); strcat(_tmp, " <"); strcat(_tmp, cinfo->col_buf[i]); strcat(_tmp, ">"); cinfo->col_buf[i][0] = '\0'; strcat(cinfo->col_buf[i], _tmp); cinfo->col_data[i] = cinfo->col_buf[i]; } } } static gchar * id_to_str(const guint8 *ad) { static gchar str[17] = " "; guint8 bits8to5, bits4to1; int i, j = 0; static const gchar hex_digits[10] = "0123456789"; for (i = 0; i < 8; i++) { bits8to5 = (ad[i] >> 4) & 0x0F; bits4to1 = ad[i] & 0x0F; if (bits8to5 < 0xA) str[j++] = hex_digits[bits4to1]; if (bits4to1 < 0xA) str[j++] = hex_digits[bits8to5]; } str[j] = '\0'; return str; } static gchar * imsi_to_str(const guint8 *ad) { static gchar str[17] = " "; int i, j = 0; for (i = 0; i < 8; i++) { if ((ad[i] & 0x0F) <= 9) str[j++] = (ad[i] & 0x0F) + 0x30; if (((ad[i] >> 4) & 0x0F) <= 9) str[j++] = ((ad[i] >> 4) & 0x0F) + 0x30; } str[j] = '\0'; return str; } static gchar * msisdn_to_str(const guint8 *ad, int len) { static gchar str[18] = "+ "; guint8 bits8to5, bits4to1; int i, j = 1; static const gchar hex_digits[10] = "0123456789"; for (i = 1; i < len && i < 9; i++) { bits8to5 = (ad[i] >> 4) & 0x0F; bits4to1 = ad[i] & 0x0F; if (bits4to1 < 0xA) str[j++] = hex_digits[bits4to1]; if (bits8to5 < 0xA) str[j++] = hex_digits[bits8to5]; } str[j] = '\0'; return str; } /* Next definitions and function check_field_presence checks if given field * in GTP packet is compliant with ETSI */ typedef struct _header { guint8 code; guint8 presence; } ext_header; typedef struct _message { guint8 code; ext_header fields[32]; } _gtp_mess_items; /* --------------------- * GPRS messages * ---------------------*/ static _gtp_mess_items gprs_mess_items[] = { { GTP_MSG_ECHO_REQ, { { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_ECHO_RESP, { { GTP_EXT_RECOVER, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_VER_NOT_SUPP, { { 0, 0 } } }, { GTP_MSG_NODE_ALIVE_REQ, { { GTP_EXT_NODE_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_NODE_ALIVE_RESP, { { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_REDIR_REQ, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_NODE_ADDR, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_REDIR_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_CREATE_PDP_REQ, { { GTP_EXT_QOS_GPRS, GTP_MANDATORY }, { GTP_EXT_RECOVER, GTP_OPTIONAL }, { GTP_EXT_SEL_MODE, GTP_MANDATORY }, { GTP_EXT_FLOW_LABEL, GTP_MANDATORY }, { GTP_EXT_FLOW_SIG, GTP_MANDATORY }, { GTP_EXT_MSISDN, GTP_MANDATORY }, { GTP_EXT_USER_ADDR, GTP_MANDATORY }, { GTP_EXT_APN, GTP_MANDATORY }, { GTP_EXT_PROTO_CONF, GTP_OPTIONAL }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_CREATE_PDP_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_QOS_GPRS, GTP_CONDITIONAL }, { GTP_EXT_REORDER, GTP_CONDITIONAL }, { GTP_EXT_RECOVER, GTP_OPTIONAL }, { GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL }, { GTP_EXT_FLOW_SIG, GTP_CONDITIONAL }, { GTP_EXT_CHRG_ID, GTP_CONDITIONAL }, { GTP_EXT_USER_ADDR, GTP_CONDITIONAL }, { GTP_EXT_PROTO_CONF, GTP_OPTIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_CHRG_ADDR, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_UPDATE_PDP_REQ, { { GTP_EXT_QOS_GPRS, GTP_MANDATORY }, { GTP_EXT_RECOVER, GTP_OPTIONAL }, { GTP_EXT_FLOW_LABEL, GTP_MANDATORY }, { GTP_EXT_FLOW_SIG, GTP_MANDATORY }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 }, } }, { GTP_MSG_UPDATE_PDP_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_QOS_GPRS, GTP_CONDITIONAL }, { GTP_EXT_RECOVER, GTP_OPTIONAL }, { GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL }, { GTP_EXT_FLOW_SIG, GTP_CONDITIONAL }, { GTP_EXT_CHRG_ID, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_CHRG_ADDR, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_DELETE_PDP_REQ, { { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_DELETE_PDP_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 }, } }, { GTP_MSG_CREATE_AA_PDP_REQ, { { GTP_EXT_QOS_GPRS, GTP_MANDATORY }, { GTP_EXT_RECOVER, GTP_OPTIONAL }, { GTP_EXT_SEL_MODE, GTP_MANDATORY }, { GTP_EXT_FLOW_LABEL, GTP_MANDATORY }, { GTP_EXT_FLOW_SIG, GTP_MANDATORY }, { GTP_EXT_USER_ADDR, GTP_MANDATORY }, { GTP_EXT_APN, GTP_MANDATORY }, { GTP_EXT_PROTO_CONF, GTP_OPTIONAL }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_CREATE_AA_PDP_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_QOS_GPRS, GTP_CONDITIONAL }, { GTP_EXT_REORDER, GTP_CONDITIONAL }, { GTP_EXT_RECOVER, GTP_OPTIONAL }, { GTP_EXT_FLOW_LABEL, GTP_CONDITIONAL }, { GTP_EXT_FLOW_SIG, GTP_CONDITIONAL }, { GTP_EXT_CHRG_ID, GTP_CONDITIONAL }, { GTP_EXT_USER_ADDR, GTP_CONDITIONAL }, { GTP_EXT_PROTO_CONF, GTP_OPTIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_CHRG_ADDR, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_DELETE_AA_PDP_REQ, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_DELETE_AA_PDP_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_ERR_IND, { { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_PDU_NOTIFY_REQ, { { GTP_EXT_USER_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_PDU_NOTIFY_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_PDU_NOTIFY_REJ_REQ, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_USER_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_PDU_NOTIFY_REJ_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_SEND_ROUT_INFO_REQ, { { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_SEND_ROUT_INFO_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_MAP_CAUSE, GTP_OPTIONAL }, { GTP_EXT_MS_REASON, GTP_OPTIONAL }, { GTP_EXT_GSN_ADDR, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_FAIL_REP_REQ, { { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_FAIL_REP_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_MAP_CAUSE, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_MS_PRESENT_REQ, { { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_MS_PRESENT_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_IDENT_REQ, { { GTP_EXT_RAI, GTP_MANDATORY }, { GTP_EXT_PTMSI, GTP_MANDATORY }, { GTP_EXT_PTMSI_SIG, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_IDENT_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_IMSI, GTP_CONDITIONAL }, { GTP_EXT_AUTH_TRI, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_SGSN_CNTXT_REQ, { { GTP_EXT_IMSI, GTP_CONDITIONAL }, { GTP_EXT_RAI, GTP_MANDATORY }, { GTP_EXT_TLLI, GTP_MANDATORY }, { GTP_EXT_PTMSI_SIG, GTP_OPTIONAL }, { GTP_EXT_MS_VALID, GTP_OPTIONAL }, { GTP_EXT_FLOW_SIG, GTP_MANDATORY }, { 0, 0 } } }, { GTP_MSG_SGSN_CNTXT_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_IMSI, GTP_CONDITIONAL }, { GTP_EXT_FLOW_SIG, GTP_CONDITIONAL }, { GTP_EXT_MM_CNTXT, GTP_CONDITIONAL }, { GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_SGSN_CNTXT_ACK, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_FLOW_II, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_DATA_TRANSF_REQ, { { GTP_EXT_TR_COMM, GTP_MANDATORY }, { GTP_EXT_DATA_REQ, GTP_CONDITIONAL }, { GTP_EXT_REL_PACK, GTP_CONDITIONAL }, { GTP_EXT_CAN_PACK, GTP_CONDITIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_DATA_TRANSF_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_DATA_RESP, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { 0, { { 0, 0 } } } }; /* ----------------------------- * UMTS messages * -----------------------------*/ static _gtp_mess_items umts_mess_items[] = { { GTP_MSG_ECHO_REQ, { { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_ECHO_RESP, { { GTP_EXT_RECOVER, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_VER_NOT_SUPP, { { 0, 0 } } }, { GTP_MSG_NODE_ALIVE_REQ, { { GTP_EXT_NODE_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_NODE_ALIVE_RESP, { { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_REDIR_REQ, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_NODE_ADDR, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_REDIR_REQ, { { 0, 0 } } }, { GTP_MSG_CREATE_PDP_REQ, { { GTP_EXT_IMSI, GTP_CONDITIONAL }, { GTP_EXT_RECOVER, GTP_OPTIONAL }, { GTP_EXT_SEL_MODE, GTP_CONDITIONAL }, { GTP_EXT_TEID, GTP_MANDATORY }, { GTP_EXT_TEID_CP, GTP_CONDITIONAL }, { GTP_EXT_NSAPI, GTP_MANDATORY }, { GTP_EXT_NSAPI, GTP_CONDITIONAL }, { GTP_EXT_CHRG_CHAR, GTP_OPTIONAL }, { GTP_EXT_TRACE_REF, GTP_OPTIONAL }, { GTP_EXT_TRACE_TYPE, GTP_OPTIONAL }, { GTP_EXT_USER_ADDR, GTP_CONDITIONAL }, { GTP_EXT_APN, GTP_CONDITIONAL }, { GTP_EXT_PROTO_CONF, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_MSISDN, GTP_CONDITIONAL }, { GTP_EXT_QOS_UMTS, GTP_MANDATORY }, { GTP_EXT_TFT, GTP_CONDITIONAL }, { GTP_EXT_TRIGGER_ID, GTP_OPTIONAL }, { GTP_EXT_OMC_ID, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_CREATE_PDP_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_REORDER, GTP_CONDITIONAL }, { GTP_EXT_RECOVER, GTP_OPTIONAL }, { GTP_EXT_TEID, GTP_CONDITIONAL }, { GTP_EXT_TEID_CP, GTP_CONDITIONAL }, { GTP_EXT_CHRG_ID, GTP_CONDITIONAL }, { GTP_EXT_USER_ADDR, GTP_CONDITIONAL }, { GTP_EXT_PROTO_CONF, GTP_OPTIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_QOS_UMTS, GTP_CONDITIONAL }, { GTP_EXT_CHRG_ADDR, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { /* checked, SGSN -> GGSN */ GTP_MSG_UPDATE_PDP_REQ, { { GTP_EXT_IMSI, GTP_CONDITIONAL }, { GTP_EXT_RECOVER, GTP_OPTIONAL }, { GTP_EXT_TEID, GTP_MANDATORY }, { GTP_EXT_TEID_CP, GTP_CONDITIONAL }, { GTP_EXT_NSAPI, GTP_MANDATORY }, { GTP_EXT_TRACE_REF, GTP_OPTIONAL }, { GTP_EXT_TRACE_TYPE, GTP_OPTIONAL }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_QOS_UMTS, GTP_MANDATORY }, { GTP_EXT_TFT, GTP_OPTIONAL }, { GTP_EXT_TRIGGER_ID, GTP_OPTIONAL }, { GTP_EXT_OMC_ID, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { /* checked, GGSN -> SGSN */ GTP_MSG_UPDATE_PDP_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_RECOVER, GTP_OPTIONAL }, { GTP_EXT_TEID, GTP_CONDITIONAL }, { GTP_EXT_TEID_CP, GTP_CONDITIONAL }, { GTP_EXT_CHRG_ID, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_QOS_UMTS, GTP_CONDITIONAL }, { GTP_EXT_CHRG_ADDR, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_DELETE_PDP_REQ, { { GTP_EXT_TEAR_IND, GTP_CONDITIONAL }, { GTP_EXT_NSAPI, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_DELETE_PDP_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_ERR_IND, { { GTP_EXT_TEID, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_PDU_NOTIFY_REQ, { { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_TEID_CP, GTP_MANDATORY }, { GTP_EXT_USER_ADDR, GTP_MANDATORY }, { GTP_EXT_APN, GTP_MANDATORY }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_PDU_NOTIFY_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_PDU_NOTIFY_REJ_REQ, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_TEID_CP, GTP_MANDATORY }, { GTP_EXT_USER_ADDR, GTP_MANDATORY }, { GTP_EXT_APN, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_PDU_NOTIFY_REJ_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_SUPP_EXT_HDR, { { GTP_EXT_HDR_LIST, GTP_MANDATORY }, { 0, 0 } } }, { GTP_MSG_SEND_ROUT_INFO_REQ, { { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_SEND_ROUT_INFO_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_MAP_CAUSE, GTP_OPTIONAL }, { GTPv1_EXT_MS_REASON, GTP_OPTIONAL }, { GTP_EXT_GSN_ADDR, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_FAIL_REP_REQ, { { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_FAIL_REP_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_MAP_CAUSE, GTP_OPTIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_MS_PRESENT_REQ, { { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_MS_PRESENT_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_IDENT_REQ, { { GTP_EXT_RAI, GTP_MANDATORY }, { GTP_EXT_PTMSI, GTP_MANDATORY }, { GTP_EXT_PTMSI_SIG, GTP_CONDITIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_IDENT_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_IMSI, GTP_CONDITIONAL }, { GTP_EXT_AUTH_TRI, GTP_CONDITIONAL }, { GTP_EXT_AUTH_QUI, GTP_CONDITIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_SGSN_CNTXT_REQ, { { GTP_EXT_IMSI, GTP_CONDITIONAL }, { GTP_EXT_RAI, GTP_MANDATORY }, { GTP_EXT_TLLI, GTP_CONDITIONAL }, { GTP_EXT_PTMSI, GTP_CONDITIONAL }, { GTP_EXT_PTMSI_SIG, GTP_CONDITIONAL }, { GTP_EXT_MS_VALID, GTP_OPTIONAL }, { GTP_EXT_TEID_CP, GTP_MANDATORY }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_SGSN_CNTXT_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_IMSI, GTP_CONDITIONAL }, { GTP_EXT_TEID_CP, GTP_CONDITIONAL }, { GTP_EXT_RP_SMS, GTP_OPTIONAL }, { GTP_EXT_RP, GTP_OPTIONAL }, { GTP_EXT_PKT_FLOW_ID, GTP_OPTIONAL }, { GTP_EXT_MM_CNTXT, GTP_CONDITIONAL }, { GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_SGSN_CNTXT_ACK, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_TEID_II, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_FORW_RELOC_REQ, { { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_TEID_CP, GTP_MANDATORY }, { GTP_EXT_RANAP_CAUSE, GTP_MANDATORY }, { GTP_EXT_MM_CNTXT, GTP_MANDATORY }, { GTP_EXT_PDP_CNTXT, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_MANDATORY }, { GTP_EXT_TARGET_ID, GTP_MANDATORY }, { GTP_EXT_UTRAN_CONT, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_FORW_RELOC_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_TEID_CP, GTP_CONDITIONAL }, { GTP_EXT_RANAP_CAUSE, GTP_CONDITIONAL }, { GTP_EXT_GSN_ADDR, GTP_CONDITIONAL }, { GTP_EXT_UTRAN_CONT, GTP_OPTIONAL }, { GTP_EXT_RAB_SETUP, GTP_CONDITIONAL }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_FORW_RELOC_COMP, { { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_RELOC_CANCEL_REQ, { { GTP_EXT_IMSI, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_RELOC_CANCEL_RESP, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_FORW_RELOC_ACK, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_FORW_SRNS_CNTXT, { { GTP_EXT_RAB_CNTXT, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { GTP_MSG_FORW_SRNS_CNTXT_ACK, { { GTP_EXT_CAUSE, GTP_MANDATORY }, { GTP_EXT_PRIV_EXT, GTP_OPTIONAL }, { 0, 0 } } }, { 0, { { 0, 0 } } } }; static int check_field_presence(guint8 message, guint8 field, int *position) { guint i = 0; _gtp_mess_items *mess_items; switch(gtp_version) { case 0: mess_items = gprs_mess_items; break; case 1: mess_items = umts_mess_items; break; default: return -2; } while (mess_items[i].code) { if (mess_items[i].code == message) { while (mess_items[i].fields[*position].code) { if (mess_items[i].fields[*position].code == field) { (*position)++; return 0; } else { if (mess_items[i].fields[*position].presence == GTP_MANDATORY) { return mess_items[i].fields[(*position)++].code; } else { (*position)++; }} } return -1; } i++; } return -2; } /* Decoders of fields in extension headers, each function returns no of bytes from field */ /* GPRS: 9.60 v7.6.0, chapter * UMTS: 29.060 v4.0, chapter */ static int decode_gtp_cause(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 cause; cause = tvb_get_guint8(tvb, offset+1); proto_tree_add_uint(tree, hf_gtp_cause, tvb, offset, 2, cause); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.2 * UMTS: 29.060 v4.0, chapter 7.7.2 */ static int decode_gtp_imsi(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 imsi_val[8]; gchar *imsi_str; tvb_memcpy(tvb, imsi_val, offset+1, 8); imsi_str = imsi_to_str (imsi_val); proto_tree_add_string (tree, hf_gtp_imsi, tvb, offset, 9, imsi_str); return 9; } /* GPRS: 9.60 v7.6.0, chapter 7.9.3 * UMTS: 29.060 v4.0, chapter 7.7.3 */ static int decode_gtp_rai(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { proto_tree *ext_tree_rai; proto_item *te; guint8 byte[3]; guint16 mnc, mcc; te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_RAI, gtp_val, "Unknown message")); ext_tree_rai = proto_item_add_subtree(te, ett_gtp_rai); byte[1] = tvb_get_guint8 (tvb, offset + 1); byte[2] = tvb_get_guint8 (tvb, offset + 2); byte[3] = tvb_get_guint8 (tvb, offset + 3); mcc = (byte[1] & 0x0F) * 100 + ((byte[1] & 0xF0) >> 4) * 10 + (byte[2] & 0x0F ); if ((byte[2] & 0xF0) == 0xF0) mnc = (byte[3] & 0x0F) * 10 + ((byte[3] & 0xF0) >> 4); else mnc = (byte[3] & 0x0F) * 100 + ((byte[3] & 0xF0) >> 4 ) * 10 + ((byte[2] & 0xF0) >> 4); proto_tree_add_uint(ext_tree_rai, hf_gtp_rai_mcc, tvb, offset+1, 2, mcc); proto_tree_add_uint(ext_tree_rai, hf_gtp_rai_mnc, tvb, offset+2, 2, mnc); proto_tree_add_uint(ext_tree_rai, hf_gtp_rai_lac, tvb, offset+4, 2, tvb_get_ntohs (tvb, offset+4)); proto_tree_add_uint(ext_tree_rai, hf_gtp_rai_rac, tvb, offset+6, 1, tvb_get_guint8 (tvb, offset+6)); return 7; } /* GPRS: 9.60 v7.6.0, chapter 7.9.4, page 39 * UMTS: 29.060 v4.0, chapter 7.7.4, page 47 */ static int decode_gtp_tlli(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint32 tlli; tlli = tvb_get_ntohl(tvb, offset+1); proto_tree_add_uint(tree, hf_gtp_tlli, tvb, offset, 5, tlli); return 5; } /* GPRS: 9.60 v7.6.0, chapter 7.9.5, page 39 * UMTS: 29.060 v4.0, chapter 7.7.5, page 47 */ static int decode_gtp_ptmsi(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint32 ptmsi; ptmsi = tvb_get_ntohl (tvb, offset+1); proto_tree_add_uint (tree, hf_gtp_ptmsi, tvb, offset, 5, ptmsi); return 5; } /* adjust - how many bytes before offset should be highlighted */ static int decode_qos_gprs(tvbuff_t *tvb, int offset, proto_tree *tree, gchar* qos_str, guint8 adjust) { guint8 spare1, delay, reliability, peak, spare2, precedence, spare3, mean; proto_tree *ext_tree_qos; proto_item *te; spare1 = tvb_get_guint8(tvb, offset) & 0xC0; delay = tvb_get_guint8(tvb, offset) & 0x38; reliability = tvb_get_guint8(tvb, offset) & 0x07; peak = tvb_get_guint8(tvb, offset+1) & 0xF0; spare2 = tvb_get_guint8(tvb, offset+1) & 0x08; precedence = tvb_get_guint8(tvb, offset+1) & 0x07; spare3 = tvb_get_guint8(tvb, offset+2) & 0xE0; mean = tvb_get_guint8(tvb, offset+2) & 0x1F; te = proto_tree_add_text(tree, tvb, offset-adjust, 3+adjust, "%s: delay: %u, reliability: %u, peak: %u, precedence: %u, mean: %u", qos_str, (delay >> 3) & 0x07, reliability, (peak >> 4) & 0x0F, precedence, mean); ext_tree_qos = proto_item_add_subtree(te, ett_gtp_qos); if (adjust != 0) { proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare1, tvb, offset, 1, spare1); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_delay, tvb, offset, 1, delay); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_reliability, tvb, offset, 1, reliability); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_peak, tvb, offset+1, 1, peak); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare2, tvb, offset+1, 1, spare2); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_precedence, tvb, offset+1, 1, precedence); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare3, tvb, offset+2, 1, spare3); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_mean, tvb, offset+2, 1, mean); } return 3; } /* GPRS: 9.60 v7.6.0, chapter 7.9.6, page 39 * 4.08 * 3.60 * UMTS: not present * TODO: check if length is included: ETSI 4.08 vs 9.60 */ static int decode_gtp_qos_gprs(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { return (1+decode_qos_gprs(tvb, offset+1, tree, "Quality of Service", 1)); } /* GPRS: 9.60 v7.6.0, chapter 7.9.7, page 39 * UMTS: 29.060 v4.0, chapter 7.7.6, page 47 */ static int decode_gtp_reorder(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 reorder; reorder = tvb_get_guint8(tvb, offset+1) & 0x01; proto_tree_add_boolean(tree, hf_gtp_reorder, tvb, offset, 2, reorder); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.8, page 40 * 4.08 v7.1.2, chapter 10.5.3.1+ * UMTS: 29.060 v4.0, chapter 7.7.7 * TODO: Add blurb support by registering items in the protocol registration */ static int decode_gtp_auth_tri(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { proto_tree *ext_tree_auth_tri; proto_item *te; te = proto_tree_add_text(tree, tvb, offset, 29, val_to_str(GTP_EXT_AUTH_TRI, gtp_val, "Unknown message")); ext_tree_auth_tri = proto_item_add_subtree(tree, ett_gtp_auth_tri); proto_tree_add_text(ext_tree_auth_tri, tvb, offset+1, 16, "RAND: %s", tvb_bytes_to_str(tvb, offset+1, 16)); proto_tree_add_text(ext_tree_auth_tri, tvb, offset+17, 4, "SRES: %s", tvb_bytes_to_str(tvb, offset+17, 4)); proto_tree_add_text(ext_tree_auth_tri, tvb, offset+21, 8, "Kc: %s", tvb_bytes_to_str(tvb, offset+21, 8)); return 1+16+4+8; } /* GPRS: 9.60 v7.6.0, chapter 7.9.9, page 40 * 9.02 v7.7.0, page 1090 * UMTS: 29.060 v4.0, chapter 7.7.8, page 48 * 29.002 v4.2.1, chapter 17.5, page 268 */ static int decode_gtp_map_cause(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 map_cause; map_cause = tvb_get_guint8(tvb, offset+1); proto_tree_add_uint (tree, hf_gtp_map_cause, tvb, offset, 2, map_cause); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.10, page 41 * UMTS: 29.060 v4.0, chapter 7.7.9, page 48 */ static int decode_gtp_ptmsi_sig(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint32 ptmsi_sig; ptmsi_sig = tvb_get_ntoh24(tvb, offset+1); proto_tree_add_uint(tree, hf_gtp_ptmsi_sig, tvb, offset, 4, ptmsi_sig); return 4; } /* GPRS: 9.60 v7.6.0, chapter 7.9.11, page 41 * UMTS: 29.060 v4.0, chapter 7.7.10, page 49 */ static int decode_gtp_ms_valid(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 ms_valid; ms_valid = tvb_get_guint8(tvb, offset+1) & 0x01; proto_tree_add_boolean (tree, hf_gtp_ms_valid, tvb, offset, 2, ms_valid); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.12, page 41 * UMTS: 29.060 v4.0, chapter 7.7.11, page 49 */ static int decode_gtp_recovery(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 recovery; recovery = tvb_get_guint8(tvb, offset+1); proto_tree_add_uint (tree, hf_gtp_recovery, tvb, offset, 2, recovery); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.13, page 42 * UMTS: 29.060 v4.0, chapter 7.7.12, page 49 */ static int decode_gtp_sel_mode(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 sel_mode; sel_mode = tvb_get_guint8(tvb, offset+1) & 0x03; proto_tree_add_uint(tree, hf_gtp_sel_mode, tvb, offset, 2, sel_mode); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.14, page 42 * UMTS: 29.060 v4.0, chapter 7.7.13, page 50 */ static int decode_gtp_16(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 ext_flow_label; guint32 teid_data; switch (gtp_version) { case 0: ext_flow_label = tvb_get_ntohs(tvb, offset+1); proto_tree_add_uint(tree, hf_gtp_ext_flow_label, tvb, offset, 3, ext_flow_label); return 3; case 1: teid_data = tvb_get_ntohl(tvb, offset+1); proto_tree_add_uint(tree, hf_gtp_teid_data, tvb, offset, 5, teid_data); return 5; default: proto_tree_add_text(tree, tvb, offset, 1, "Flow label/TEID Data I : GTP version not supported"); return 3; } } /* GPRS: 9.60 v7.6.0, chapter 7.9.15, page 42 * UMTS: 29.060 v4.0, chapter 7.7.14, page 42 */ static int decode_gtp_17(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 flow_sig; guint32 teid_cp; switch (gtp_version) { case 0: flow_sig = tvb_get_ntohs(tvb, offset+1); proto_tree_add_uint (tree, hf_gtp_flow_sig, tvb, offset, 3, flow_sig); return 3; case 1: teid_cp = tvb_get_ntohl(tvb, offset+1); proto_tree_add_uint (tree, hf_gtp_teid_cp, tvb, offset, 5, teid_cp); return 5; default: proto_tree_add_text(tree, tvb, offset, 1, "Flow label signalling/TEID control plane : GTP version not supported"); return 3; } } /* GPRS: 9.60 v7.6.0, chapter 7.9.16, page 42 * UMTS: 29.060 v4.0, chapter 7.7.15, page 51 */ static int decode_gtp_18(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 flow_ii; guint32 teid_ii; proto_tree *ext_tree_flow_ii; proto_item *te; switch (gtp_version) { case 0: te = proto_tree_add_text(tree, tvb, offset, 4, val_to_str(GTP_EXT_FLOW_II, gtp_val, "Unknown message")); ext_tree_flow_ii = proto_item_add_subtree (te, ett_gtp_flow_ii); proto_tree_add_uint(ext_tree_flow_ii, hf_gtp_nsapi, tvb, offset+1, 1, tvb_get_guint8(tvb, offset+1) & 0x0F); flow_ii = tvb_get_ntohs(tvb, offset+2); proto_tree_add_uint(ext_tree_flow_ii, hf_gtp_flow_ii, tvb, offset+2, 2, flow_ii); return 4; case 1: te = proto_tree_add_text (tree, tvb, offset, 6, val_to_str(GTP_EXT_TEID_II, gtp_val, "Unknown message")); ext_tree_flow_ii = proto_item_add_subtree(te, ett_gtp_flow_ii); proto_tree_add_uint(ext_tree_flow_ii, hf_gtp_nsapi, tvb, offset+1, 1, tvb_get_guint8(tvb, offset+1) & 0x0F); teid_ii = tvb_get_ntohl(tvb, offset+2); proto_tree_add_uint(ext_tree_flow_ii, hf_gtp_teid_ii, tvb, offset+2, 4, teid_ii); return 6; default: proto_tree_add_text(tree, tvb, offset, 1, "Flow data II/TEID Data II : GTP Version not supported"); return 4; } } /* GPRS: 9.60 v7.6.0, chapter 7.9.16A, page 43 * UMTS: 29.060 v4.0, chapter 7.7.16, page 51 * Check if all ms_reason types are included */ static int decode_gtp_19(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 field19; field19 = tvb_get_guint8(tvb, offset+1); switch (gtp_version) { case 0: proto_tree_add_uint(tree, hf_gtp_ms_reason, tvb, offset, 2, field19); break; case 1: proto_tree_add_boolean(tree, hf_gtp_tear_ind, tvb, offset, 2, field19 & 0x01); break; default: proto_tree_add_text(tree, tvb, offset, 1, "Information Element Type = 19 : GTP Version not supported"); break; } return 2; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.17, page 51 */ static int decode_gtp_nsapi(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 nsapi; nsapi = tvb_get_guint8(tvb, offset+1) & 0x0F; proto_tree_add_uint(tree, hf_gtp_nsapi, tvb, offset, 2, nsapi); return 2; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.18, page 52 */ static int decode_gtp_ranap_cause(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 ranap; ranap = tvb_get_guint8(tvb, offset+1); if(ranap > 0 && ranap <=64) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (Radio Network Layer Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap); if(ranap > 64 && ranap <=80) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (Transport Layer Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap); if(ranap > 80 && ranap <=96) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (NAS Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap); if(ranap > 96 && ranap <=112) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (Protocol Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap); if(ranap > 112 && ranap <=128) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (Miscellaneous Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap); if(ranap > 128 /* && ranap <=255 */) proto_tree_add_uint_format(tree, hf_gtp_ranap_cause, tvb, offset, 2, ranap, "%s (Non-standard Cause) : %s (%u)", val_to_str(GTP_EXT_RANAP_CAUSE, gtp_val, "Unknown"), val_to_str(ranap, ranap_cause_type, "Unknown RANAP Cause"), ranap); return 2; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.19, page 52 */ static int decode_gtp_rab_cntxt(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 nsapi, dl_pdcp_seq, ul_pdcp_seq; guint16 dl_gtpu_seq, ul_gtpu_seq; proto_tree *ext_tree_rab_cntxt; proto_item *te; te = proto_tree_add_text(tree, tvb, offset, 8, val_to_str(GTP_EXT_RAB_CNTXT, gtp_val, "Unknown message")); ext_tree_rab_cntxt = proto_item_add_subtree(te, ett_gtp_rab_cntxt); nsapi = tvb_get_guint8(tvb, offset+1) & 0x0F; dl_gtpu_seq = tvb_get_ntohs(tvb, offset+2); ul_gtpu_seq = tvb_get_ntohs(tvb, offset+4); dl_pdcp_seq = tvb_get_guint8(tvb, offset+6); ul_pdcp_seq = tvb_get_guint8(tvb, offset+7); proto_tree_add_uint (ext_tree_rab_cntxt, hf_gtp_nsapi, tvb, offset+1, 1, nsapi); proto_tree_add_uint(ext_tree_rab_cntxt, hf_gtp_rab_gtpu_dn, tvb, offset+2, 2, dl_gtpu_seq); proto_tree_add_uint(ext_tree_rab_cntxt, hf_gtp_rab_gtpu_up, tvb, offset+4, 2, ul_gtpu_seq); proto_tree_add_uint(ext_tree_rab_cntxt, hf_gtp_rab_pdu_dn, tvb, offset+6, 1, dl_pdcp_seq); proto_tree_add_uint(ext_tree_rab_cntxt, hf_gtp_rab_pdu_up, tvb, offset+7, 1, ul_pdcp_seq); return 8; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.20, page 53 */ static int decode_gtp_rp_sms(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 rp_sms; rp_sms = tvb_get_guint8(tvb, offset+1) & 0x07; proto_tree_add_uint(tree, hf_gtp_rp_sms, tvb, offset, 2, rp_sms); return 2; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.21, page 53 */ static int decode_gtp_rp(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { proto_tree *ext_tree_rp; proto_item *te; guint8 nsapi, rp, spare; nsapi = tvb_get_guint8(tvb, offset+1) & 0xF0; spare = tvb_get_guint8(tvb, offset+1) & 0x08; rp = tvb_get_guint8(tvb, offset+1) & 0x07; te = proto_tree_add_uint_format(tree, hf_gtp_rp, tvb, offset, 2, rp, "Radio Priority for NSAPI(%u) : %u", nsapi, rp); ext_tree_rp = proto_item_add_subtree(tree, ett_gtp_rp); proto_tree_add_uint(ext_tree_rp, hf_gtp_rp_nsapi, tvb, offset+1, 1, nsapi); proto_tree_add_uint(ext_tree_rp, hf_gtp_rp_spare, tvb, offset+1, 1, spare); proto_tree_add_uint(ext_tree_rp, hf_gtp_rp, tvb, offset+1, 1, rp); return 2; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.22, page 53 */ static int decode_gtp_pkt_flow_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { proto_tree *ext_tree_pkt_flow_id; proto_item *te; guint8 nsapi, pkt_flow_id; nsapi = tvb_get_guint8(tvb, offset+1) & 0x0F; pkt_flow_id = tvb_get_guint8(tvb, offset+2); te = proto_tree_add_uint_format (tree, hf_gtp_pkt_flow_id, tvb, offset, 3, pkt_flow_id, "Packet Flow ID for NSAPI(%u) : %u", nsapi, pkt_flow_id); ext_tree_pkt_flow_id = proto_item_add_subtree(tree, ett_gtp_pkt_flow_id); proto_tree_add_uint(ext_tree_pkt_flow_id, hf_gtp_nsapi, tvb, offset+1, 1, nsapi); proto_tree_add_uint_format(ext_tree_pkt_flow_id, hf_gtp_pkt_flow_id, tvb, offset+2, 1, pkt_flow_id, "%s : %u", val_to_str(GTP_EXT_PKT_FLOW_ID, gtp_val, "Unknown message"), pkt_flow_id); return 3; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.23, page 53 * TODO: Differenciate these uints? */ static int decode_gtp_chrg_char(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 chrg_char; proto_item *te; proto_tree *ext_tree_chrg_char; chrg_char = tvb_get_ntohs(tvb, offset+1); te = proto_tree_add_uint (tree, hf_gtp_chrg_char, tvb, offset, 3, chrg_char); /*"%s: %x", val_to_str (GTP_EXT_CHRG_CHAR, gtp_val, "Unknown message"), chrg_char);*/ ext_tree_chrg_char = proto_item_add_subtree(te, ett_gtp_chrg_char); proto_tree_add_uint (ext_tree_chrg_char, hf_gtp_chrg_char_s, tvb, offset+1, 2, chrg_char); proto_tree_add_uint (ext_tree_chrg_char, hf_gtp_chrg_char_n, tvb, offset+1, 2, chrg_char); proto_tree_add_uint (ext_tree_chrg_char, hf_gtp_chrg_char_p, tvb, offset+1, 2, chrg_char); proto_tree_add_uint (ext_tree_chrg_char, hf_gtp_chrg_char_f, tvb, offset+1, 2, chrg_char); proto_tree_add_uint (ext_tree_chrg_char, hf_gtp_chrg_char_h, tvb, offset+1, 2, chrg_char); proto_tree_add_uint (ext_tree_chrg_char, hf_gtp_chrg_char_r, tvb, offset+1, 2, chrg_char); return 3; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.24, page */ static int decode_gtp_trace_ref(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 trace_ref; trace_ref = tvb_get_ntohs(tvb, offset+1); proto_tree_add_uint (tree, hf_gtp_trace_ref, tvb, offset, 3, trace_ref); return 3; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.25, page */ static int decode_gtp_trace_type(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 trace_type; trace_type = tvb_get_ntohs(tvb, offset+1); proto_tree_add_uint (tree, hf_gtp_trace_type, tvb, offset, 3, trace_type); return 3; } /* GPRS: 9.60 v7.6.0, chapter 7.9.16A * UMTS: 29.060 v4.0, chapter 7.7.25A, page */ static int decode_gtp_ms_reason(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 reason; reason = tvb_get_guint8(tvb, offset+1); proto_tree_add_uint (tree, hf_gtp_ms_reason, tvb, offset, 2, reason); return 2; } /* GPRS: 12.15 v7.6.0, chapter 7.3.3, page 45 * UMTS: 33.015 */ static int decode_gtp_tr_comm(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 tr_command; tr_command = tvb_get_guint8(tvb, offset+1); proto_tree_add_uint (tree, hf_gtp_tr_comm, tvb, offset, 2, tr_command); return 2; } /* GPRS: 9.60 v7.6.0, chapter 7.9.17, page 43 * UMTS: 29.060 v4.0, chapter 7.7.26, page 55 */ static int decode_gtp_chrg_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint32 chrg_id; chrg_id = tvb_get_ntohl(tvb, offset+1); proto_tree_add_uint (tree, hf_gtp_chrg_id, tvb, offset, 5, chrg_id); return 5; } /* GPRS: 9.60 v7.6.0, chapter 7.9.18, page 43 * UMTS: 29.060 v4.0, chapter 7.7.27, page 55 */ static int decode_gtp_user_addr(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length; guint8 pdp_typ, pdp_org; guint32 addr_ipv4; struct e_in6_addr addr_ipv6; proto_tree *ext_tree_user; proto_item *te; length = tvb_get_ntohs(tvb, offset+1); pdp_org = tvb_get_guint8(tvb, offset+3) & 0x0F; pdp_typ = tvb_get_guint8(tvb, offset+4); te = proto_tree_add_text(tree, tvb, offset, 3+length, "%s (%s/%s)", val_to_str(GTP_EXT_USER_ADDR, gtp_val, "Unknown message"), val_to_str(pdp_org, pdp_org_type, "Unknown PDP Organization"), val_to_str(pdp_typ, pdp_type, "Unknown PDP Type")); ext_tree_user = proto_item_add_subtree(te, ett_gtp_user); proto_tree_add_text(ext_tree_user, tvb, offset+1, 2, "Length : %u", length); proto_tree_add_uint(ext_tree_user, hf_gtp_user_addr_pdp_org, tvb, offset+3, 1, pdp_org); proto_tree_add_uint(ext_tree_user, hf_gtp_user_addr_pdp_type, tvb, offset+4, 1, pdp_typ); if (length == 2) { if (pdp_org == 0 && pdp_typ == 1) proto_item_append_text(te, " (Point to Point Protocol)"); else if (pdp_typ == 2) proto_item_append_text(te, " (Octet Stream Protocol)"); } else if (length > 2) { switch (pdp_typ) { case 0x21: tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+5, sizeof addr_ipv4); proto_tree_add_ipv4(ext_tree_user, hf_gtp_user_ipv4, tvb, offset+5, 4, addr_ipv4); proto_item_append_text(te, " : %s", ip_to_str((guint8 *)&addr_ipv4)); break; case 0x57: tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+5, sizeof addr_ipv6); proto_tree_add_ipv6 (ext_tree_user, hf_gtp_user_ipv6, tvb, offset+5, 16, (guint8 *)&addr_ipv6); proto_item_append_text(te, " : %s", ip6_to_str((struct e_in6_addr*)&addr_ipv6)); break; } } else proto_item_append_text(te, " : empty PDP Address"); return 3+length; } static int decode_triplet(tvbuff_t *tvb, int offset, proto_tree *tree, guint16 count) { proto_tree *ext_tree_trip; proto_item *te_trip; guint16 i; for (i=0;i> 6) & 0x03; count = (tvb_get_guint8(tvb, offset+4) >> 3) & 0x07; cipher = tvb_get_guint8(tvb, offset+4) & 0x07; proto_tree_add_text(ext_tree_mm, tvb, offset+1, 2, "Length: %x", length); proto_tree_add_text(ext_tree_mm, tvb, offset+3, 1, "Ciphering Key Sequence Number: %u", cksn); if (gtp_version != 0) { proto_tree_add_text(ext_tree_mm, tvb, offset+3, 1, "Security type: %u (%s)", sec_mode, val_to_str(sec_mode, mm_sec_modep, "Unknown")); } else { sec_mode = 1; } proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "No of triplets: %u", count); switch (sec_mode) { case 0: if (cipher == 0) { proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: no ciphering"); } else { proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: GEA/%u", cipher); } proto_tree_add_text(ext_tree_mm, tvb, offset+5, 16, "Ciphering key CK: %s", tvb_bytes_to_str(tvb, offset+5, 16)); proto_tree_add_text(ext_tree_mm, tvb, offset+21, 16, "Integrity key CK: %s", tvb_bytes_to_str(tvb, offset+21, 16)); quint_len = tvb_get_ntohs(tvb, offset+37); proto_tree_add_text(ext_tree_mm, tvb, offset+37, 2, "Quintuplets length: %x", quint_len); offset = offset + decode_quintuplet(tvb, offset+39, ext_tree_mm, count, 0) + 39; break; case 1: if (cipher == 0) { proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: no ciphering"); } else { proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: GEA/%u", cipher); } proto_tree_add_text(ext_tree_mm, tvb, offset+5, 8, "Ciphering key Kc: %s", tvb_bytes_to_str(tvb, offset+5, 8)); offset = offset + decode_triplet(tvb, offset+13, ext_tree_mm, count) + 13; break; case 2: proto_tree_add_text(ext_tree_mm, tvb, offset+5, 16, "Ciphering key CK: %s", tvb_bytes_to_str(tvb, offset+5, 16)); proto_tree_add_text(ext_tree_mm, tvb, offset+21, 16, "Integrity key CK: %s", tvb_bytes_to_str(tvb, offset+21, 16)); quint_len = tvb_get_ntohs(tvb, offset+37); proto_tree_add_text(ext_tree_mm, tvb, offset+37, 2, "Quintuplets length: %x", quint_len); offset = offset + decode_quintuplet(tvb, offset+39, ext_tree_mm, count, 0) + 39; break; case 3: if (cipher == 0) { proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: no ciphering"); } else { proto_tree_add_text(ext_tree_mm, tvb, offset+4, 1, "Ciphering: GEA/%u", cipher); } proto_tree_add_text(ext_tree_mm, tvb, offset+5, 8, "Ciphering key Kc: %s", tvb_bytes_to_str(tvb, offset+5, 8)); quint_len = tvb_get_ntohs(tvb, offset+13); proto_tree_add_text(ext_tree_mm, tvb, offset+13, 2, "Quintuplets length: %x", quint_len); offset = offset + decode_quintuplet(tvb, offset+15, ext_tree_mm, count, 0) + 15; break; default: break; } drx_split = tvb_get_guint8(tvb, offset); drx_len = (tvb_get_guint8(tvb, offset+1) >> 4) & 0x0F; drx_ccch = (tvb_get_guint8(tvb, offset+1) >> 3) & 0x01; non_drx_timer = tvb_get_guint8(tvb, offset+1) & 0x07; net_cap = tvb_get_ntohs(tvb, offset+2); con_len = tvb_get_ntohs(tvb, offset+4); proto_tree_add_text(ext_tree_mm, tvb, offset, 1, "DRX: split PG cycle code: %u", drx_split); proto_tree_add_text(ext_tree_mm, tvb, offset+1, 1, "DRX: CN specific DRX cycle length coefficient: %u", drx_len); proto_tree_add_text(ext_tree_mm, tvb, offset+1, 1, "DRX: split PG cycle on CCCH supported by MS: %s", yesno[drx_ccch]); if (non_drx_timer == 0) { proto_tree_add_text(ext_tree_mm, tvb, offset+1, 1, "DRX: no non-DRX mode after transfer state"); } else { proto_tree_add_text(ext_tree_mm, tvb, offset+1, 1, "DRX: max sec non-DRX mode after transfer state: 2^%u", non_drx_timer-1); } proto_tree_add_text(ext_tree_mm, tvb, offset+2, 2, "MS network capability: %u", net_cap); proto_tree_add_text(ext_tree_mm, tvb, offset+4, 2, "Container length: %u", con_len); if (con_len > 0) { trans_id = (tvb_get_guint8(tvb, offset+6) >> 4) & 0x0F; proto_tree_add_text(ext_tree_mm, tvb, offset+6, 1, "Transaction identifier: 0x%x", trans_id); proto_disc = tvb_get_guint8(tvb, offset+6) & 0x0F; proto_tree_add_text(ext_tree_mm, tvb, offset+6, 1, "Protocol discriminator: 0x%x (%s)", proto_disc, val_to_str(proto_disc, mm_proto_disc, "Unknown")); message = tvb_get_guint8(tvb, offset+7); switch (message) { case MM_PROTO_RR_MGMT: proto_tree_add_text(ext_tree_mm, tvb, offset+7, 1, "Message type: 0x%02x (%s)", message, val_to_str(message, mm_rr_mess, "Unknown")); break; case MM_PROTO_MM_NON_GPRS: proto_tree_add_text(ext_tree_mm, tvb, offset+7, 1, "Message type: 0x%02x (%s)", message, val_to_str(message, mm_mm_mess, "Unknown")); break; case MM_PROTO_CALL_CONTROL: case MM_PROTO_GROUP_CALL_CONTROL: case MM_PROTO_BROADCAST_CALL_CONTROL: proto_tree_add_text(ext_tree_mm, tvb, offset+7, 1, "Message type: 0x%02x (%s)", message, val_to_str(message, mm_cc_mess, "Unknown")); break; case MM_PROTO_MM_GPRS: proto_tree_add_text(ext_tree_mm, tvb, offset+7, 1, "Message type: 0x%02x (%s)", message, val_to_str(message, mm_gprs_mess, "Unknown")); break; default: proto_tree_add_text(ext_tree_mm, tvb, offset+7, 1, "Message type: 0x%02x", message); break; } /* XXX - dissect additional IEs from GSM L3 message */ } return 3+length; } /* Function to extract the value of an hexadecimal octet. Only the lower * nybble will be non-zero in the output. * */ static guint8 hex2dec (guint8 x) { if ((x >= 'a') && (x <= 'f')) x = x - 'a' + 10; else if ((x >= 'A') && (x <= 'F')) x = x - 'A' + 10; else if ((x >= '0') && (x <= '9')) x = x - '0'; else x = 0; return x; } /* Wrapper function to add UTF-8 decoding for QoS attributes in * RADIUS messages. * */ static guint8 wrapped_tvb_get_guint8( tvbuff_t *tvb, int offset, int type) { if (type == 2) return (hex2dec(tvb_get_guint8(tvb, offset)) << 4 | hex2dec(tvb_get_guint8(tvb, offset + 1))); else return tvb_get_guint8(tvb, offset); } /* WARNING : actually length is coded on 2 octets for QoS profile but on 1 octet for PDP Context! * so type means length of length :-) * * WARNING :) type does not mean length of length any more... see below for * type = 3! */ int decode_qos_umts(tvbuff_t *tvb, int offset, proto_tree *tree, gchar* qos_str, guint8 type) { guint length; guint8 al_ret_priority; guint8 delay, reliability, peak, precedence, mean, spare1, spare2, spare3; guint8 traf_class, del_order, del_err_sdu; guint8 max_sdu_size, max_ul, max_dl; guint8 res_ber, sdu_err_ratio; guint8 trans_delay, traf_handl_prio; guint8 guar_ul, guar_dl; proto_tree *ext_tree_qos; proto_item *te; int mss, mu, md, gu, gd; /* Will keep if the input is UTF-8 encoded (as in RADIUS messages). * If 1, input is *not* UTF-8 encoded (i.e. each input octet corresponds * to one byte to be dissected). * If 2, input is UTF-8 encoded (i.e. each *couple* of input octets * corresponds to one byte to be dissected) * */ guint8 utf8_type = 1; /* In RADIUS messages the QoS has a version field of two octets prepended. * As of 29.061 v.3.a.0, there is an hyphen between "Release Indicator" and * . Even if it sounds rather * inconsistent and unuseful, I will check hyphen presence here and * will signal its presence. * */ guint8 version_buffer[2]; guint8 hyphen; /* Will keep the value that will be returned * */ int retval = 0; switch (type) { case 1: length = tvb_get_guint8 (tvb, offset); te = proto_tree_add_text (tree, tvb, offset, length + 1, "%s", qos_str); ext_tree_qos = proto_item_add_subtree (te, ett_gtp_qos); proto_tree_add_text (ext_tree_qos, tvb, offset, 1, "Length: %u", length); offset++; retval = length + 1; break; case 2: length = tvb_get_ntohs (tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, length + 3, "%s", qos_str); ext_tree_qos = proto_item_add_subtree (te, ett_gtp_qos); proto_tree_add_text (ext_tree_qos, tvb, offset + 1, 2, "Length: %u", length); offset += 3; /* +1 because of first 0x86 byte for UMTS QoS */ retval = length + 3; break; case 3: /* For QoS inside RADIUS Client messages from GGSN */ utf8_type = 2; /* The field in the RADIUS message starts one byte before :) */ length = tvb_get_guint8 (tvb, offset); te = proto_tree_add_text (tree, tvb, offset - 1, length, "%s", qos_str); ext_tree_qos = proto_item_add_subtree (te, ett_gtp_qos); version_buffer[0] = tvb_get_guint8(tvb, offset + 1); version_buffer[1] = tvb_get_guint8(tvb, offset + 2); proto_tree_add_text (ext_tree_qos, tvb, offset + 1, 2, "Version: %c%c", version_buffer[0], version_buffer[1]); /* Hyphen handling */ hyphen = tvb_get_guint8(tvb, offset + 3); if (hyphen == ((guint8) '-')) { /* Hyphen is present, put in protocol tree */ proto_tree_add_text (ext_tree_qos, tvb, offset + 3, 1, "Hyphen separator: -"); offset++; /* "Get rid" of hyphen */ } /* Now, we modify offset here and in order to use type later * effectively.*/ offset += 2; retval = length + 3; /* Actually, will be ignored. */ break; default: /* XXX - what should we do with the length here? */ length = 0; retval = 0; ext_tree_qos = NULL; break; } /* In RADIUS messages there is no allocation-retention priority * so I don't need to wrap the following call to tvb_get_guint8 * */ al_ret_priority = tvb_get_guint8 (tvb, offset); /* All calls are wrapped to take into account the possibility that the * input is UTF-8 encoded. If utf8_type is equal to 1, the final value * of the offset will be the same as in the previous version of this * dissector, and the wrapped function will serve as a dumb wrapper; * otherwise, if utf_8_type is 2, the offset is correctly shifted by * two bytes for needed shift, and the wrapped function will unencode * two values from the input. * */ spare1 = wrapped_tvb_get_guint8(tvb, offset+(1 - 1) * utf8_type + 1, utf8_type) & 0xC0; delay = wrapped_tvb_get_guint8(tvb, offset+(1 - 1) * utf8_type + 1, utf8_type) & 0x38; reliability = wrapped_tvb_get_guint8(tvb, offset+(1 - 1) * utf8_type + 1, utf8_type) & 0x07; peak = wrapped_tvb_get_guint8(tvb, offset+(2 - 1) * utf8_type + 1, utf8_type) & 0xF0; spare2 = wrapped_tvb_get_guint8(tvb, offset+(2 - 1) * utf8_type + 1, utf8_type) & 0x08; precedence = wrapped_tvb_get_guint8(tvb, offset+(2 - 1) * utf8_type + 1, utf8_type) & 0x07; spare3 = wrapped_tvb_get_guint8(tvb, offset+(3 - 1) * utf8_type + 1, utf8_type) & 0xE0; mean = wrapped_tvb_get_guint8(tvb, offset+(3 - 1) * utf8_type + 1, utf8_type) & 0x1F; /* In RADIUS messages there is no allocation-retention priority */ if (type != 3) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_al_ret_priority, tvb, offset, 1, al_ret_priority); /* All additions must take care of the fact that QoS fields in RADIUS * messages are UTF-8 encoded, so we have to use the same trick as above. * */ proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare1, tvb, offset+(1 - 1) * utf8_type + 1, utf8_type, spare1); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_delay, tvb, offset+(1 - 1) * utf8_type + 1, utf8_type, delay); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_reliability, tvb, offset+(1 - 1) * utf8_type + 1, utf8_type, reliability); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_peak, tvb, offset+(2 - 1) * utf8_type + 1, utf8_type, peak); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare2, tvb, offset+(2 - 1) * utf8_type + 1, utf8_type, spare2); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_precedence, tvb, offset+(2 - 1) * utf8_type + 1, utf8_type, precedence); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_spare3, tvb, offset+(3 - 1) * utf8_type + 1, utf8_type, spare3); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_mean, tvb, offset+(3 - 1) * utf8_type + 1, utf8_type, mean); if (length > 4) { /* See above for the need of wrapping * */ traf_class = wrapped_tvb_get_guint8(tvb, offset+(4 - 1) * utf8_type + 1, utf8_type) & 0xE0; del_order = wrapped_tvb_get_guint8(tvb, offset+(4 - 1) * utf8_type + 1, utf8_type) & 0x18; del_err_sdu = wrapped_tvb_get_guint8(tvb, offset+(4 - 1) * utf8_type + 1, utf8_type) & 0x07; max_sdu_size = wrapped_tvb_get_guint8(tvb, offset+(5 - 1) * utf8_type + 1, utf8_type); max_ul = wrapped_tvb_get_guint8(tvb, offset+(6 - 1) * utf8_type + 1, utf8_type); max_dl = wrapped_tvb_get_guint8(tvb, offset+(7 - 1) * utf8_type + 1, utf8_type); res_ber = wrapped_tvb_get_guint8(tvb, offset+(8 - 1) * utf8_type + 1, utf8_type) & 0xF0; sdu_err_ratio = wrapped_tvb_get_guint8(tvb, offset+(8 - 1) * utf8_type + 1, utf8_type) & 0x0F; trans_delay = wrapped_tvb_get_guint8(tvb, offset+(9 - 1) * utf8_type + 1, utf8_type) & 0xFC; traf_handl_prio = wrapped_tvb_get_guint8(tvb, offset+(9 - 1) * utf8_type + 1, utf8_type) & 0x03; guar_ul = wrapped_tvb_get_guint8(tvb, offset+(10 - 1) * utf8_type + 1, utf8_type); guar_dl = wrapped_tvb_get_guint8(tvb, offset+(11 - 1) * utf8_type + 1, utf8_type); /* See above comments for the changes * */ proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_traf_class, tvb, offset+(4 - 1) * utf8_type + 1, utf8_type, traf_class); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_del_order, tvb, offset+(4 - 1) * utf8_type + 1, utf8_type, del_order); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_del_err_sdu, tvb, offset+(4 - 1) * utf8_type + 1, utf8_type, del_err_sdu); if (max_sdu_size == 0 || max_sdu_size > 150) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_max_sdu_size, tvb, offset+(5 - 1) * utf8_type + 1, utf8_type, max_sdu_size); if (max_sdu_size > 0 && max_sdu_size <= 150) { mss = max_sdu_size*10; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_sdu_size, tvb, offset+(5 - 1) * utf8_type + 1, utf8_type, mss, "Maximum SDU size : %u octets", mss); } if(max_ul == 0 || max_ul == 255) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset+(6 - 1) * utf8_type + 1, utf8_type, max_ul); if(max_ul > 0 && max_ul <= 63) proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset+(6 - 1) * utf8_type + 1, utf8_type, max_ul, "Maximum bit rate for uplink : %u kbps", max_ul); if(max_ul > 63 && max_ul <=127) { mu = 64 + ( max_ul - 64 ) * 8; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset+(6 - 1) * utf8_type + 1, utf8_type, mu, "Maximum bit rate for uplink : %u kbps", mu); } if(max_ul > 127 && max_ul <=254) { mu = 576 + ( max_ul - 128 ) * 64; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_ul, tvb, offset+(6 - 1) * utf8_type + 1, utf8_type, mu, "Maximum bit rate for uplink : %u kbps", mu); } if(max_dl == 0 || max_dl == 255) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset+(7 - 1) * utf8_type + 1, utf8_type, max_dl); if(max_dl > 0 && max_dl <= 63) proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset+(7 - 1) * utf8_type + 1, utf8_type, max_dl, "Maximum bit rate for downlink : %u kbps", max_dl); if(max_dl > 63 && max_dl <=127) { md = 64 + ( max_dl - 64 ) * 8; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset+(7 - 1) * utf8_type + 1, utf8_type, md, "Maximum bit rate for downlink : %u kbps", md); } if(max_dl > 127 && max_dl <=254) { md = 576 + ( max_dl - 128 ) * 64; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_max_dl, tvb, offset+(7 - 1) * utf8_type + 1, utf8_type, md, "Maximum bit rate for downlink : %u kbps", md); } proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_res_ber, tvb, offset+(8 - 1) * utf8_type + 1, utf8_type, res_ber); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_sdu_err_ratio, tvb, offset+(8 - 1) * utf8_type + 1, utf8_type, sdu_err_ratio); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_trans_delay, tvb, offset+(9 - 1) * utf8_type + 1, utf8_type, trans_delay); proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_traf_handl_prio, tvb, offset+(9 - 1) * utf8_type + 1, utf8_type, traf_handl_prio); if(guar_ul == 0 || guar_ul == 255) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset+(10 - 1) * utf8_type + 1, utf8_type, guar_ul); if(guar_ul > 0 && guar_ul <= 63) proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset+(10 - 1) * utf8_type + 1, utf8_type, guar_ul, "Guaranteed bit rate for uplink : %u kbps", guar_ul); if(guar_ul > 63 && guar_ul <=127) { gu = 64 + ( guar_ul - 64 ) * 8; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset+(10 - 1) * utf8_type + 1, utf8_type, gu, "Guaranteed bit rate for uplink : %u kbps", gu); } if(guar_ul > 127 && guar_ul <=254) { gu = 576 + ( guar_ul - 128 ) * 64; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_ul, tvb, offset+(10 - 1) * utf8_type + 1, utf8_type, gu, "Guaranteed bit rate for uplink : %u kbps", gu); } if(guar_dl == 0 || guar_dl == 255) proto_tree_add_uint(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset+(11 - 1) * utf8_type + 1, utf8_type, guar_dl); if(guar_dl > 0 && guar_dl <= 63) proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset+(11 - 1) * utf8_type + 1, utf8_type, guar_dl, "Guaranteed bit rate for downlink : %u kbps", guar_dl); if(guar_dl > 63 && guar_dl <=127) { gd = 64 + ( guar_dl - 64 ) * 8; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset+(11 - 1) * utf8_type + 1, utf8_type, gd, "Guaranteed bit rate for downlink : %u kbps", gd); } if(guar_dl > 127 && guar_dl <=254) { gd = 576 + ( guar_dl - 128 ) * 64; proto_tree_add_uint_format(ext_tree_qos, hf_gtp_qos_guar_dl, tvb, offset+(11 - 1) * utf8_type + 1, utf8_type, gd, "Guaranteed bit rate for downlink : %u kbps", gd); } } return retval; } static void decode_apn(tvbuff_t *tvb, int offset, guint16 length, proto_tree *tree) { gchar *apn = NULL; guint8 name_len, tmp; if (length > 0) { name_len = tvb_get_guint8 (tvb, offset); if (name_len < 0x20) { apn = tvb_get_string(tvb, offset + 1, length - 1); for (;;) { if (name_len >= length - 1) break; tmp = name_len; name_len = name_len + apn[tmp] + 1; apn[tmp] = '.'; } } else apn = tvb_get_string(tvb, offset, length); proto_tree_add_string (tree, hf_gtp_apn, tvb, offset, length, apn); g_free(apn); } } /* GPRS: 9.60 v7.6.0, chapter 7.9.20 * UMTS: 29.060 v4.0, chapter 7.7.29 * TODO: unify addr functions */ static int decode_gtp_pdp_cntxt(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 ggsn_addr_len, apn_len, trans_id, vaa, order, nsapi, sapi, pdu_send_no, pdu_rec_no, pdp_cntxt_id, pdp_type_org, pdp_type_num, pdp_addr_len; guint16 length, sn_down, sn_up, up_flow; guint32 addr_ipv4, up_teid, up_teid_cp; struct e_in6_addr addr_ipv6; proto_tree *ext_tree_pdp; proto_item *te; length = tvb_get_ntohs(tvb, offset+1); te = proto_tree_add_text(tree, tvb, offset, length+3, val_to_str(GTP_EXT_PDP_CNTXT, gtp_val, "Unknown message")); ext_tree_pdp = proto_item_add_subtree(te, ett_gtp_pdp); vaa = (tvb_get_guint8(tvb, offset+3) >> 6) & 0x01; order = (tvb_get_guint8(tvb, offset+3) >> 4) & 0x01; nsapi = tvb_get_guint8(tvb, offset+3) & 0x0F; sapi = tvb_get_guint8(tvb, offset+4) & 0x0F; proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 1, "VPLMN address allowed: %s", yesno[vaa]); proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 1, "Reordering required: %s", yesno[order]); proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 1, "NSAPI: %u", nsapi); proto_tree_add_text(ext_tree_pdp, tvb, offset+4, 1, "SAPI: %u", sapi); switch (gtp_version) { case 0: decode_qos_gprs(tvb, offset+5, ext_tree_pdp, "QoS subscribed", 0); decode_qos_gprs(tvb, offset+8, ext_tree_pdp, "QoS requested", 0); decode_qos_gprs(tvb, offset+11, ext_tree_pdp, "QoS negotiated", 0); offset = offset + 14; break; case 1: offset = offset + 5; offset = offset + decode_qos_umts(tvb, offset, ext_tree_pdp, "QoS subscribed", 1); offset = offset + decode_qos_umts(tvb, offset, ext_tree_pdp, "QoS requested", 1); offset = offset + decode_qos_umts(tvb, offset, ext_tree_pdp, "QoS negotiated", 1); break; default: break; } sn_down = tvb_get_ntohs(tvb, offset); sn_up = tvb_get_ntohs(tvb, offset+2); pdu_send_no = tvb_get_guint8(tvb, offset+4); pdu_rec_no = tvb_get_guint8(tvb, offset+5); proto_tree_add_text(ext_tree_pdp, tvb, offset, 2, "Sequence number down: %u", sn_down); proto_tree_add_text(ext_tree_pdp, tvb, offset+2, 2, "Sequence number up: %u", sn_up); proto_tree_add_text(ext_tree_pdp, tvb, offset+4, 1, "Send N-PDU number: %u", pdu_send_no); proto_tree_add_text(ext_tree_pdp, tvb, offset+5, 1, "Receive N-PDU number: %u", pdu_rec_no); switch (gtp_version) { case 0: up_flow = tvb_get_ntohs(tvb, offset+6); proto_tree_add_text(ext_tree_pdp, tvb, offset+6, 2, "Uplink flow label signalling: %u", up_flow); offset = offset + 8; break; case 1: up_teid = tvb_get_ntohl(tvb, offset+6); up_teid_cp = tvb_get_ntohl(tvb, offset+10); pdp_cntxt_id = tvb_get_guint8(tvb, offset+14); proto_tree_add_text(ext_tree_pdp, tvb, offset+6, 4, "Uplink TEID: %x", up_teid); proto_tree_add_text(ext_tree_pdp, tvb, offset+10, 4, "Uplink TEID control plane: %x", up_teid_cp); proto_tree_add_text(ext_tree_pdp, tvb, offset+14, 1, "PDP context identifier: %u", pdp_cntxt_id); offset = offset + 15; break; default: break; } pdp_type_org = tvb_get_guint8(tvb, offset) & 0x0F; pdp_type_num = tvb_get_guint8(tvb, offset+1); pdp_addr_len = tvb_get_guint8(tvb, offset+2); proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "PDP organization: %s", val_to_str(pdp_type_org, pdp_type, "Unknown PDP org")); proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 1, "PDP type: %s", val_to_str(pdp_type_num, pdp_org_type, "Unknown PDP type")); proto_tree_add_text(ext_tree_pdp, tvb, offset+2, 1, "PDP address length: %u", pdp_addr_len); if (pdp_addr_len > 0) { switch (pdp_type_num) { case 0x21: tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+3, sizeof addr_ipv4); proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 4, "PDP address: %s", ip_to_str((guint8 *)&addr_ipv4)); break; case 0x57: tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+3, sizeof addr_ipv6); proto_tree_add_text(ext_tree_pdp, tvb, offset+3, 16, "PDP address: %s", ip6_to_str((struct e_in6_addr*)&addr_ipv6)); break; default: break; } } offset = offset + 3 + pdp_addr_len; ggsn_addr_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "GGSN address length: %u", ggsn_addr_len); switch (ggsn_addr_len) { case 4: tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+1, sizeof addr_ipv4); proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 4, "GGSN address: %s", ip_to_str((guint8 *)&addr_ipv4)); break; case 16: tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+1, sizeof addr_ipv6); proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 16, "GGSN address: %s", ip6_to_str((struct e_in6_addr*)&addr_ipv6)); break; default: break; } offset = offset + 1 + ggsn_addr_len; if (gtp_version == 1) { ggsn_addr_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "GGSN 2 address length: %u", ggsn_addr_len); switch (ggsn_addr_len) { case 4: tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+1, sizeof addr_ipv4); proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 4, "GGSN 2 address: %s", ip_to_str((guint8 *)&addr_ipv4)); break; case 16: tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+1, sizeof addr_ipv6); proto_tree_add_text(ext_tree_pdp, tvb, offset+1, 16, "GGSN 2 address: %s", ip6_to_str((struct e_in6_addr*)&addr_ipv6)); break; default: break; } offset = offset + 1 + ggsn_addr_len; } apn_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "APN length: %u", apn_len); decode_apn(tvb, offset+1, apn_len, ext_tree_pdp); offset = offset + 1 + apn_len; trans_id = tvb_get_guint8(tvb, offset); proto_tree_add_text(ext_tree_pdp, tvb, offset, 1, "Transaction identifier: %u", trans_id); return 3+length; } /* GPRS: 9.60, v7.6.0, chapter 7.9.21 * UMTS: 29.060, v4.0, chapter 7.7.30 */ static int decode_gtp_apn(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length; proto_tree *ext_tree_apn; proto_item *te; length = tvb_get_ntohs(tvb, offset+1); te = proto_tree_add_text (tree, tvb, offset, length+3, val_to_str(GTP_EXT_APN, gtp_val, "Unknown field")); ext_tree_apn = proto_item_add_subtree(te, ett_gtp_apn); proto_tree_add_text (ext_tree_apn, tvb, offset+1, 2, "APN length : %u", length); decode_apn (tvb, offset+3, length, ext_tree_apn); return 3+length; } /* GPRS: 9.60 v7.6.0, chapter 7.9.22 * 4.08 v. 7.1.2, chapter 10.5.6.3 (p.580) * UMTS: 29.060 v4.0, chapter 7.7.31 * 24.008, v4.2, chapter 10.5.6.3 */ int decode_gtp_proto_conf(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree) { guint16 length, proto_offset; guint16 proto_id; guint8 conf, proto_len, cnt = 1; tvbuff_t *next_tvb; proto_tree *ext_tree_proto; proto_item *te; gboolean save_writable; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, length + 3, val_to_str(GTP_EXT_PROTO_CONF, gtp_val, "Unknown message")); ext_tree_proto = proto_item_add_subtree(te, ett_gtp_proto); proto_tree_add_text(ext_tree_proto, tvb, offset + 1, 2, "Length: %u", length); if (length < 1) return 3; conf = tvb_get_guint8 (tvb, offset + 3) & 0x07; proto_tree_add_text (ext_tree_proto, tvb, offset + 3, 1, "Configuration protocol (00000xxx): %u", conf); proto_offset = 1; /* ... 1st byte is conf */ offset += 4; for (;;) { if (proto_offset >= length) break; proto_id = tvb_get_ntohs (tvb, offset); proto_len = tvb_get_guint8 (tvb, offset + 2); proto_offset += proto_len + 3; /* 3 = proto id + length byte */ if (proto_len > 0) { proto_tree_add_text (ext_tree_proto, tvb, offset, 2, "Protocol %u ID: %s (0x%04x)", cnt, val_to_str(proto_id, ppp_vals, "Unknown"), proto_id); proto_tree_add_text (ext_tree_proto, tvb, offset+2, 1, "Protocol %u length: %u", cnt, proto_len); /* * Don't allow the dissector for the configuration * protocol in question to update the columns - this * is GTP, not PPP. */ save_writable = col_get_writable(pinfo->cinfo); col_set_writable(pinfo->cinfo, FALSE); /* * XXX - should we have our own dissector table, * solely for configuration protocols, so that bogus * values don't cause us to dissect the protocol * data as, for example, IP? */ next_tvb = tvb_new_subset (tvb, offset + 3, proto_len, proto_len); if (!dissector_try_port(ppp_subdissector_table, proto_id, next_tvb, pinfo, ext_tree_proto)) { call_dissector(data_handle, next_tvb, pinfo, ext_tree_proto); } col_set_writable(pinfo->cinfo, save_writable); } offset += proto_len + 3; cnt++; } return 3 + length; } /* GPRS: 9.60 v7.6.0, chapter 7.9.23 * UMTS: 29.060 v4.0, chapter 7.7.32 */ static int decode_gtp_gsn_addr(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 addr_type, addr_len; guint16 length; guint32 addr_ipv4; struct e_in6_addr addr_ipv6; proto_tree *ext_tree_gsn_addr; proto_item *te; length = tvb_get_ntohs(tvb, offset+1); te = proto_tree_add_text(tree, tvb, offset, 3+length, "GSN address : "); ext_tree_gsn_addr = proto_item_add_subtree(te, ett_gtp_gsn_addr); switch (length) { case 4: proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address length : %u", length); tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+3, sizeof addr_ipv4); proto_item_append_text(te, "%s", ip_to_str((guint8 *)&addr_ipv4)); proto_tree_add_ipv4(ext_tree_gsn_addr, hf_gtp_gsn_ipv4, tvb, offset+3, 4, addr_ipv4); break; case 5: proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address Information Element length : %u", length); addr_type = tvb_get_guint8(tvb, offset+3) & 0xC0; proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_gsn_addr_type, tvb, offset+3, 1, addr_type); addr_len = tvb_get_guint8(tvb, offset+3) & 0x3F; proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_gsn_addr_len, tvb, offset+3, 1, addr_len); tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+4, sizeof addr_ipv4); proto_item_append_text(te, "%s", ip_to_str((guint8 *)&addr_ipv4)); proto_tree_add_ipv4(ext_tree_gsn_addr, hf_gtp_gsn_ipv4, tvb, offset+4, 4, addr_ipv4); break; case 16: proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address length : %u", length); tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+3, sizeof addr_ipv6); proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr*)&addr_ipv6)); proto_tree_add_ipv6(ext_tree_gsn_addr, hf_gtp_gsn_ipv6, tvb, offset+3, 16, (guint8*)&addr_ipv6); break; case 17: proto_tree_add_text(ext_tree_gsn_addr, tvb, offset+1, 2, "GSN address Information Element length : %u", length); addr_type = tvb_get_guint8(tvb, offset+3) & 0xC0; proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_gsn_addr_type, tvb, offset+3, 1, addr_type); addr_len = tvb_get_guint8(tvb, offset+3) & 0x3F; proto_tree_add_uint(ext_tree_gsn_addr, hf_gtp_gsn_addr_len, tvb, offset+3, 1, addr_len); tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+4, sizeof addr_ipv6); proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr*)&addr_ipv6)); proto_tree_add_ipv6(ext_tree_gsn_addr, hf_gtp_gsn_ipv6, tvb, offset+4, 16, (guint8*)&addr_ipv6); break; default: proto_item_append_text(te, "unknown type or wrong length"); break; } return 3+length; } /* GPRS: 9.60 v7.6.0, chapter 7.9.24 * UMTS: 29.060 v4.0, chapter 7.7.33 */ static int decode_gtp_msisdn(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { const guint8 *msisdn_val; gchar *msisdn_str; guint16 length; length = tvb_get_ntohs(tvb, offset+1); if (length < 1) return 3; msisdn_val = tvb_get_ptr(tvb, offset+3, length); msisdn_str = msisdn_to_str(msisdn_val, length); proto_tree_add_string(tree, hf_gtp_msisdn, tvb, offset, 3+length, msisdn_str); return 3+length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.34 * 24.008 v4.2, chapter 10.5.6.5 */ static int decode_gtp_qos_umts(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { return decode_qos_umts(tvb, offset, tree, "Quality of Service", 2); } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.35 */ static int decode_gtp_auth_qui(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { return (1 + decode_quintuplet(tvb, offset+1, tree, 1, 1)); } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.36 * 24.008 v4.2, chapter 10.5.6.12 */ static int decode_gtp_tft(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length, port1, port2, tos; guint8 tft_flags, tft_code, no_packet_filters, i, pf_id, pf_eval, pf_len, pf_content_id, proto, spare; guint pf_offset; guint32 mask_ipv4, addr_ipv4, ipsec_id, label; struct e_in6_addr addr_ipv6, mask_ipv6; proto_tree *ext_tree_tft, *ext_tree_tft_pf, *ext_tree_tft_flags; proto_item *te, *tee, *tef; length = tvb_get_ntohs(tvb, offset+1); te = proto_tree_add_text(tree, tvb, offset, 3+length, "Traffic flow template"); ext_tree_tft = proto_item_add_subtree(te, ett_gtp_tft); tft_flags = tvb_get_guint8(tvb, offset+3); tft_code = (tft_flags >> 5) & 0x07; spare = (tft_flags >> 4) & 0x01; no_packet_filters = tft_flags & 0x0F; proto_tree_add_text(ext_tree_tft, tvb, offset+1, 2, "TFT length: %u", length); tef = proto_tree_add_text (ext_tree_tft, tvb, offset + 3, 1, "TFT flags"); ext_tree_tft_flags = proto_item_add_subtree (tef, ett_gtp_tft_flags); proto_tree_add_uint (ext_tree_tft_flags, hf_gtp_tft_code, tvb, offset + 3, 1, tft_flags); proto_tree_add_uint (ext_tree_tft_flags, hf_gtp_tft_spare, tvb, offset + 3, 1, tft_flags); proto_tree_add_uint (ext_tree_tft_flags, hf_gtp_tft_number, tvb, offset + 3, 1, tft_flags); offset = offset + 4; for (i=0;i 1) { teid = tvb_get_ntohl(tvb, offset + 4); proto_tree_add_uint(ext_tree_rab_setup, hf_gtp_teid_data, tvb, offset+4, 4, teid); switch (length) { case 12: tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+8, sizeof addr_ipv4); proto_tree_add_ipv4(ext_tree_rab_setup, hf_gtp_rnc_ipv4, tvb, offset+8, 4, addr_ipv4); break; case 24: tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+8, sizeof addr_ipv6); proto_tree_add_ipv6(ext_tree_rab_setup, hf_gtp_rnc_ipv6, tvb, offset+8, 16, (guint8 *)&addr_ipv6); break; default: break; } } return 3 + length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.40 */ static int decode_gtp_hdr_list(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { int i; guint8 length, hdr; proto_tree *ext_tree_hdr_list; proto_item *te; length = tvb_get_guint8(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 2+length, "%s", val_to_str(GTP_EXT_HDR_LIST, gtp_val, "Unknown")); ext_tree_hdr_list = proto_item_add_subtree(te, ett_gtp_hdr_list); proto_tree_add_text(ext_tree_hdr_list, tvb, offset+1, 1, "Number of Extension Header Types in list (i.e., length) : %u", length); for(i=0 ; i Extension Header Type value : %s (%u)", i+1, val_to_str(hdr, gtp_val, "Unknown Extension Header Type"), hdr); } return 2 + length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.41 * TODO: find TriggerID description */ static int decode_gtp_trigger_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length; length = tvb_get_ntohs(tvb, offset + 1); proto_tree_add_text(tree, tvb, offset, 3+length, "%s length : %u", val_to_str(GTP_EXT_TRIGGER_ID, gtp_val, "Unknown"), length); return 3 + length; } /* GPRS: not present * UMTS: 29.060 v4.0, chapter 7.7.42 * TODO: find OMC-ID description */ static int decode_gtp_omc_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length; length = tvb_get_ntohs(tvb, offset + 1); proto_tree_add_text(tree, tvb, offset, 3+length, "%s length : %u", val_to_str(GTP_EXT_OMC_ID, gtp_val, "Unknown"), length); return 3 + length; } /* GPRS: 9.60 v7.6.0, chapter 7.9.25 * UMTS: 29.060 v4.0, chapter 7.7.43 */ static int decode_gtp_chrg_addr(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length; guint32 addr_ipv4; struct e_in6_addr addr_ipv6; proto_tree *ext_tree_chrg_addr; proto_item *te; length = tvb_get_ntohs(tvb, offset+1); te = proto_tree_add_text(tree, tvb, offset, 3+length, "%s : ", val_to_str(GTP_EXT_CHRG_ADDR, gtp_val, "Unknown")); ext_tree_chrg_addr = proto_item_add_subtree(te, ett_gtp_chrg_addr); proto_tree_add_text(ext_tree_chrg_addr, tvb, offset+1, 2, "%s length : %u", val_to_str(GTP_EXT_CHRG_ADDR, gtp_val, "Unknown"), length); switch (length) { case 4: tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+3, sizeof addr_ipv4); proto_item_append_text(te, "%s", ip_to_str((guint8 *)&addr_ipv4)); proto_tree_add_ipv4 (ext_tree_chrg_addr, hf_gtp_chrg_ipv4, tvb, offset+3, 4, addr_ipv4); break; case 16: tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+3, sizeof addr_ipv6); proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr*)&addr_ipv6)); proto_tree_add_ipv6 (ext_tree_chrg_addr, hf_gtp_chrg_ipv6, tvb, offset+3, 16, (guint8*)&addr_ipv6); break; default: proto_item_append_text(te, "unknown type or wrong length"); break; } return 3 + length; } /* GPRS: 12.15 * UMTS: 33.015 */ static int decode_gtp_rel_pack(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length, n, number; proto_tree *ext_tree_rel_pack; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Sequence numbers of released packets IE"); ext_tree_rel_pack = proto_item_add_subtree(te, ett_gtp_rel_pack); n = 0; while (n < length) { number = tvb_get_ntohs(tvb, offset + 3 + n); proto_tree_add_text(ext_tree_rel_pack, tvb, offset + 3 + n, 2, "%u", number); n = n + 2; } return 3 + length; } /* GPRS: 12.15 * UMTS: 33.015 */ static int decode_gtp_can_pack(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length, n, number; proto_tree *ext_tree_can_pack; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Sequence numbers of cancelled packets IE"); ext_tree_can_pack = proto_item_add_subtree(te, ett_gtp_can_pack); n = 0; while (n < length) { number = tvb_get_ntohs(tvb, offset + 3 + n); proto_tree_add_text(ext_tree_can_pack, tvb, offset + 3 + n, 2, "%u", number); n = n + 2; } return 3 + length; } /* CDRs dissector */ static int decode_gtp_data_req(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length, format_ver; guint8 no, format; proto_tree *ext_tree; proto_item *te; tvbuff_t *next_tvb; te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_DATA_REQ, gtp_val, "Unknown message")); ext_tree = proto_item_add_subtree(te, ett_gtp_ext); length = tvb_get_ntohs(tvb, offset + 1); no = tvb_get_guint8(tvb, offset + 3); format = tvb_get_guint8(tvb, offset + 4); format_ver = tvb_get_ntohs(tvb, offset + 5); proto_tree_add_text(ext_tree, tvb, offset+1, 2, "Length: %u", length); proto_tree_add_text(ext_tree, tvb, offset+3, 1, "Number of data records: %u", no); proto_tree_add_text(ext_tree, tvb, offset+4, 1, "Data record format: %u", format); proto_tree_add_text(ext_tree, tvb, offset+5, 2, "Data record format version: %u", format_ver); if (gtpcdr_handle) { next_tvb = tvb_new_subset (tvb, offset, -1, -1); call_dissector (gtpcdr_handle, next_tvb, pinfo, tree); } else proto_tree_add_text (tree, tvb, offset, 0, "Data"); return 3+length; } /* GPRS: 12.15 * UMTS: 33.015 */ static int decode_gtp_data_resp(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length, n, number; proto_tree *ext_tree_data_resp; proto_item *te; length = tvb_get_ntohs(tvb, offset + 1); te = proto_tree_add_text(tree, tvb, offset, 3 + length, "Requests responded"); ext_tree_data_resp = proto_item_add_subtree(te, ett_gtp_data_resp); n = 0; while (n < length) { number = tvb_get_ntohs(tvb, offset + 3 + n); proto_tree_add_text(ext_tree_data_resp, tvb, offset + 3 + n, 2, "%u", number); n = n + 2; } return 3 + length; } /* GPRS: 12.15 * UMTS: 33.015 */ static int decode_gtp_node_addr(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length; guint32 addr_ipv4; struct e_in6_addr addr_ipv6; proto_tree *ext_tree_node_addr; proto_item *te; length = tvb_get_ntohs(tvb, offset+1); te = proto_tree_add_text(tree, tvb, offset, 3+length, "Node address: "); ext_tree_node_addr = proto_item_add_subtree(te, ett_gtp_node_addr); proto_tree_add_text (ext_tree_node_addr, tvb, offset+1, 2, "Node address length: %u", length); switch (length) { case 4: tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset+3, sizeof addr_ipv4); proto_item_append_text(te, "%s", ip_to_str((guint8 *)&addr_ipv4)); proto_tree_add_ipv4 (ext_tree_node_addr, hf_gtp_node_ipv4, tvb, offset+3, 4, addr_ipv4); break; case 16: tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset+3, sizeof addr_ipv6); proto_item_append_text(te, "%s", ip6_to_str((struct e_in6_addr*)&addr_ipv6)); proto_tree_add_ipv6 (ext_tree_node_addr, hf_gtp_node_ipv6, tvb, offset+3, 16, (guint8*)&addr_ipv6); break; default: proto_item_append_text(te, "unknown type or wrong length"); break; } return 3 + length; } /* GPRS: 9.60 v7.6.0, chapter 7.9.26 * UMTS: 29.060 v4.0, chapter 7.7.44 */ static int decode_gtp_priv_ext(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { guint16 length, ext_id; proto_tree *ext_tree_priv_ext; proto_item *te; te = proto_tree_add_text(tree, tvb, offset, 1, val_to_str(GTP_EXT_PRIV_EXT, gtp_val, "Unknown message")); ext_tree_priv_ext = proto_item_add_subtree(te, ett_gtp_ext); length = tvb_get_ntohs(tvb, offset+1); if (length >= 2) { ext_id = tvb_get_ntohs(tvb, offset+3); proto_tree_add_uint(ext_tree_priv_ext, hf_gtp_ext_id, tvb, offset+3, 2, ext_id); /* * XXX - is this always a text string? Or should it be * displayed as hex data? */ if (length > 2) proto_tree_add_item(ext_tree_priv_ext, hf_gtp_ext_val, tvb, offset+5, length-2, FALSE); } return 3+length; } static int decode_gtp_unknown(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree) { proto_tree_add_text(tree, tvb, offset, 1, "Unknown extension header"); return tvb_length_remaining(tvb, offset); } static void dissect_gtp (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { struct _gtp_hdr gtp_hdr; proto_tree *gtp_tree, *flags_tree; proto_item *ti, *tf; int i, offset, length, gtp_prime, checked_field, mandatory; int seq_no, flow_label; guint8 pdu_no, next_hdr = 0, ext_hdr_val; const guint8 *tid_val; gchar *tid_str; guint32 teid; tvbuff_t *next_tvb; guint8 sub_proto, acfield_len = 0, control_field; if (check_col(pinfo->cinfo, COL_PROTOCOL)) col_set_str(pinfo->cinfo, COL_PROTOCOL, "GTP"); if (check_col(pinfo->cinfo, COL_INFO)) col_clear(pinfo->cinfo, COL_INFO); tvb_memcpy(tvb, (guint8 *)>p_hdr, 0, 4); if (!(gtp_hdr.flags & 0x10)) gtp_prime = 1; else gtp_prime = 0; switch ((gtp_hdr.flags >> 5) & 0x07) { case 0: gtp_version = 0; break; case 1: gtp_version = 1; break; default: gtp_version = 1; break; } if (check_col(pinfo->cinfo, COL_INFO)) col_add_str(pinfo->cinfo, COL_INFO, val_to_str(gtp_hdr.message, message_type, "Unknown")); if (tree) { ti = proto_tree_add_item (tree, proto_gtp, tvb, 0, -1, FALSE); gtp_tree = proto_item_add_subtree(ti, ett_gtp); tf = proto_tree_add_uint (gtp_tree, hf_gtp_flags, tvb, 0, 1, gtp_hdr.flags); flags_tree = proto_item_add_subtree (tf, ett_gtp_flags); proto_tree_add_uint (flags_tree, hf_gtp_flags_ver, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_uint (flags_tree, hf_gtp_flags_pt, tvb, 0, 1, gtp_hdr.flags); switch (gtp_version) { case 0: proto_tree_add_uint (flags_tree, hf_gtp_flags_spare1, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_boolean (flags_tree, hf_gtp_flags_snn, tvb, 0, 1, gtp_hdr.flags); break; case 1: proto_tree_add_uint (flags_tree, hf_gtp_flags_spare2, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_boolean (flags_tree, hf_gtp_flags_e, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_boolean (flags_tree, hf_gtp_flags_s, tvb, 0, 1, gtp_hdr.flags); proto_tree_add_boolean (flags_tree, hf_gtp_flags_pn, tvb, 0, 1, gtp_hdr.flags); break; default: break; } proto_tree_add_uint (gtp_tree, hf_gtp_message_type, tvb, 1, 1, gtp_hdr.message); gtp_hdr.length = g_ntohs (gtp_hdr.length); proto_tree_add_uint (gtp_tree, hf_gtp_length, tvb, 2, 2, gtp_hdr.length); offset = 4; if (gtp_prime) { seq_no = tvb_get_ntohs (tvb, offset); proto_tree_add_uint (gtp_tree, hf_gtp_seq_number, tvb, offset, 2, seq_no); offset += 2; } else switch (gtp_version) { case 0: seq_no = tvb_get_ntohs (tvb, offset); proto_tree_add_uint (gtp_tree, hf_gtp_seq_number, tvb, offset, 2, seq_no); offset += 2; flow_label = tvb_get_ntohs (tvb, offset); proto_tree_add_uint (gtp_tree, hf_gtp_flow_label, tvb, offset, 2, flow_label); offset += 2; pdu_no = tvb_get_guint8 (tvb, offset); proto_tree_add_uint (gtp_tree, hf_gtp_sndcp_number, tvb, offset, 1, pdu_no); offset += 4; tid_val = tvb_get_ptr(tvb, offset, 8); tid_str = id_to_str (tid_val); proto_tree_add_string (gtp_tree, hf_gtp_tid, tvb, offset, 8, tid_str); offset += 8; break; case 1: teid = tvb_get_ntohl (tvb, offset); proto_tree_add_uint (gtp_tree, hf_gtp_teid, tvb, offset, 4, teid); offset += 4; if (gtp_hdr.flags & 0x07) { seq_no = tvb_get_ntohs (tvb, offset); proto_tree_add_uint (gtp_tree, hf_gtp_seq_number, tvb, offset, 2, seq_no); offset += 2; pdu_no = tvb_get_guint8 (tvb, offset); proto_tree_add_uint (gtp_tree, hf_gtp_npdu_number, tvb, offset, 1, pdu_no); offset++; next_hdr = tvb_get_guint8 (tvb, offset); proto_tree_add_uint (gtp_tree, hf_gtp_next, tvb, offset, 1, next_hdr); if (!next_hdr) offset++; } break; default: break; } if (gtp_hdr.message != GTP_MSG_TPDU) { proto_tree_add_text(gtp_tree, tvb, 0, 0, "[--- end of GTP header, beginning of extension headers ---]"); length = tvb_length (tvb); mandatory = 0; /* check order of GTP fields against ETSI */ for (;;) { if (offset >= length) break; if (next_hdr) { ext_hdr_val = next_hdr; next_hdr = 0; } else ext_hdr_val = tvb_get_guint8 (tvb, offset); if (gtp_etsi_order) { checked_field = check_field_presence (gtp_hdr.message, ext_hdr_val , (int *)&mandatory); switch (checked_field) { case -2: proto_tree_add_text (gtp_tree, tvb, 0, 0, "[WARNING] message not found"); break; case -1: proto_tree_add_text (gtp_tree, tvb, 0, 0, "[WARNING] field not present"); break; case 0: break; default: proto_tree_add_text (gtp_tree, tvb, offset, 1, "[WARNING] wrong next field, should be: %s", val_to_str(checked_field, gtp_val, "Unknown extension field")); break; } } i = -1; while (gtpopt[++i].optcode) if (gtpopt[i].optcode == ext_hdr_val) break; offset = offset + (*gtpopt[i].decode)(tvb, offset, pinfo, gtp_tree); } } } if ((gtp_hdr.message == GTP_MSG_TPDU) && gtp_tpdu) { if (gtp_prime) offset = 6; else if (gtp_version == 1) { if (gtp_hdr.flags & 0x07) { offset = 11; if (tvb_get_guint8 (tvb, offset) == 0) offset++; } else offset = 8; } else offset = 20; sub_proto = tvb_get_guint8 (tvb, offset); if ((sub_proto >= 0x45) && (sub_proto <= 0x4e)) { /* this is most likely an IPv4 packet * we can exclude 0x40 - 0x44 because the minimum header size is 20 octets * 0x4f is excluded because PPP protocol type "IPv6 header compression" * with protocol field compression is more likely than a plain IPv4 packet with 60 octet header size */ next_tvb = tvb_new_subset (tvb, offset, -1, -1); call_dissector(ip_handle, next_tvb, pinfo, tree); } else if ((sub_proto & 0xf0) == 0x60){ /* this is most likely an IPv6 packet */ next_tvb = tvb_new_subset (tvb, offset, -1, -1); call_dissector (ipv6_handle, next_tvb, pinfo, tree); } else { /* this seems to be a PPP packet */ if (sub_proto == 0xff) { /* this might be an address field, even it shouldn't be here */ control_field = tvb_get_guint8 (tvb, offset + 1); if (control_field == 0x03) /* now we are pretty sure that address and control field are mistakenly inserted -> ignore it for PPP dissection */ acfield_len = 2; } next_tvb = tvb_new_subset (tvb, offset + acfield_len, -1, -1); call_dissector (ppp_handle, next_tvb, pinfo, tree); } if (check_col(pinfo->cinfo, COL_PROTOCOL)) col_append_str_gtp(pinfo->cinfo, COL_PROTOCOL, "GTP"); } } static const true_false_string yes_no_tfs = { "yes" , "no" }; void proto_register_gtp(void) { static hf_register_info hf_gtp[] = { { &hf_gtp_apn, { "APN", "gtp.apn", FT_STRING, BASE_DEC, NULL, 0, "Access Point Name", HFILL }}, { &hf_gtp_cause, { "Cause ", "gtp.cause", FT_UINT8, BASE_DEC, VALS(cause_type), 0, "Cause of operation", HFILL }}, { &hf_gtp_chrg_char, { "Charging characteristics", "gtp.chrg_char", FT_UINT16, BASE_DEC, NULL, 0, "Charging characteristics", HFILL }}, { &hf_gtp_chrg_char_s, { "Spare", "gtp.chrg_char_s", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_S, "Spare", HFILL }}, { &hf_gtp_chrg_char_n, { "Normal charging", "gtp.chrg_char_n", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_N, "Normal charging", HFILL }}, { &hf_gtp_chrg_char_p, { "Prepaid charging", "gtp.chrg_char_p", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_P, "Prepaid charging", HFILL }}, { &hf_gtp_chrg_char_f, { "Flat rate charging", "gtp.chrg_char_f", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_F, "Flat rate charging", HFILL }}, { &hf_gtp_chrg_char_h, { "Hot billing charging", "gtp.chrg_char_h", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_H, "Hot billing charging", HFILL }}, { &hf_gtp_chrg_char_r, { "Reserved", "gtp.chrg_char_r", FT_UINT16, BASE_DEC, NULL, GTP_MASK_CHRG_CHAR_R, "Reserved", HFILL }}, { &hf_gtp_chrg_id, { "Charging ID", "gtp.chrg_id", FT_UINT32, BASE_HEX, NULL, 0, "Charging ID", HFILL }}, { &hf_gtp_chrg_ipv4, { "CG address IPv4", "gtp.chrg_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Charging Gateway address IPv4", HFILL }}, { &hf_gtp_chrg_ipv6, { "CG address IPv6", "gtp.chrg_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "Charging Gateway address IPv6", HFILL }}, { &hf_gtp_ext_flow_label, { "Flow Label Data I", "gtp.ext_flow_label", FT_UINT16, BASE_HEX, NULL, 0, "Flow label data", HFILL }}, { &hf_gtp_ext_id, { "Extension identifier", "gtp.ext_id", FT_UINT16, BASE_DEC, NULL, 0, "Extension Identifier", HFILL }}, { &hf_gtp_ext_val, { "Extension value", "gtp.ext_val", FT_STRING, BASE_DEC, NULL, 0, "Extension Value", HFILL }}, { &hf_gtp_flags, { "Flags", "gtp.flags", FT_UINT8, BASE_HEX, NULL, 0, "Ver/PT/Spare...", HFILL }}, { &hf_gtp_flags_ver, { "Version", "gtp.flags.version", FT_UINT8, BASE_DEC, VALS(ver_types), GTP_VER_MASK, "GTP Version", HFILL }}, { &hf_gtp_flags_pt, { "Protocol type", "gtp.flags.payload", FT_UINT8, BASE_DEC, NULL, GTP_PT_MASK, "Protocol Type", HFILL }}, { &hf_gtp_flags_spare1, { "Reserved", "gtp.flags.reserved", FT_UINT8, BASE_DEC, NULL, GTP_SPARE1_MASK, "Reserved (shall be sent as '111' )", HFILL }}, { &hf_gtp_flags_snn, { "Is SNDCP N-PDU included?", "gtp.flags.snn", FT_BOOLEAN, 8, TFS(&yes_no_tfs), GTP_SNN_MASK, "Is SNDCP N-PDU LLC Number included? (1 = yes, 0 = no)", HFILL }}, { &hf_gtp_flags_spare2, { "Reserved", "gtp.flags.reserved", FT_UINT8, BASE_DEC, NULL, GTP_SPARE2_MASK, "Reserved (shall be sent as '1' )", HFILL }}, { &hf_gtp_flags_e, { "Is Next Extension Header present?", "gtp.flags.e", FT_BOOLEAN, 8, TFS(&yes_no_tfs), GTP_E_MASK, "Is Next Extension Header present? (1 = yes, 0 = no)", HFILL }}, { &hf_gtp_flags_s, { "Is Sequence Number present?", "gtp.flags.s", FT_BOOLEAN, 8, TFS(&yes_no_tfs), GTP_S_MASK, "Is Sequence Number present? (1 = yes, 0 = no)", HFILL }}, { &hf_gtp_flags_pn, { "Is N-PDU number present?", "gtp.flags.pn", FT_BOOLEAN, 8, TFS(&yes_no_tfs), GTP_PN_MASK, "Is N-PDU number present? (1 = yes, 0 = no)", HFILL }}, { &hf_gtp_flow_ii, { "Flow Label Data II ", "gtp.flow_ii", FT_UINT16, BASE_DEC, NULL, 0, "Downlink flow label data", HFILL }}, { &hf_gtp_flow_label, { "Flow label", "gtp.flow_label", FT_UINT16, BASE_HEX, NULL, 0, "Flow label", HFILL }}, { &hf_gtp_flow_sig, { "Flow label Signalling", "gtp.flow_sig", FT_UINT16, BASE_HEX, NULL, 0, "Flow label signalling", HFILL }}, { &hf_gtp_gsn_addr_len, { "GSN Address Length", "gtp.gsn_addr_len", FT_UINT8, BASE_DEC, NULL, GTP_EXT_GSN_ADDR_LEN_MASK, "GSN Address Length", HFILL }}, { &hf_gtp_gsn_addr_type, { "GSN Address Type", "gtp.gsn_addr_type", FT_UINT8, BASE_DEC, VALS(gsn_addr_type), GTP_EXT_GSN_ADDR_TYPE_MASK, "GSN Address Type", HFILL }}, { &hf_gtp_gsn_ipv4, { "GSN address IPv4", "gtp.gsn_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "GSN address IPv4", HFILL }}, { &hf_gtp_gsn_ipv6, { "GSN address IPv6", "gtp.gsn_ipv6", FT_IPv6, BASE_DEC, NULL, 0, "GSN address IPv6", HFILL }}, { &hf_gtp_imsi, { "IMSI", "gtp.imsi", FT_STRING, BASE_DEC, NULL, 0, "International Mobile Subscriber Identity number", HFILL }}, { &hf_gtp_length, { "Length", "gtp.length", FT_UINT16, BASE_DEC, NULL, 0, "Length (i.e. number of octets after TID or TEID)", HFILL }}, { &hf_gtp_map_cause, { "MAP cause", "gtp.map_cause", FT_UINT8, BASE_DEC, VALS(map_cause_type), 0, "MAP cause", HFILL }}, { &hf_gtp_message_type, { "Message Type", "gtp.message", FT_UINT8, BASE_HEX, VALS(message_type), 0x0, "GTP Message Type", HFILL }}, { &hf_gtp_ms_reason, { "MS not reachable reason", "gtp.ms_reason", FT_UINT8, BASE_DEC, VALS(ms_not_reachable_type), 0, "MS Not Reachable Reason", HFILL }}, { &hf_gtp_ms_valid, { "MS validated", "gtp.ms_valid", FT_BOOLEAN, BASE_NONE,NULL, 0, "MS validated", HFILL }}, { &hf_gtp_msisdn, { "MSISDN", "gtp.msisdn", FT_STRING, BASE_DEC, NULL, 0, "MS international PSTN/ISDN number", HFILL }}, { &hf_gtp_next, { "Next extension header type", "gtp.next", FT_UINT8, BASE_HEX, NULL, 0, "Next Extension Header Type", HFILL }}, { &hf_gtp_node_ipv4, { "Node address IPv4", "gtp.node_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Recommended node address IPv4", HFILL }}, { &hf_gtp_node_ipv6, { "Node address IPv6", "gtp.node_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "Recommended node address IPv6", HFILL }}, { &hf_gtp_npdu_number, { "N-PDU Number", "gtp.npdu_number", FT_UINT8, BASE_HEX, NULL, 0, "N-PDU Number", HFILL }}, { &hf_gtp_nsapi, { "NSAPI", "gtp.nsapi", FT_UINT8, BASE_DEC, NULL, 0, "Network layer Service Access Point Identifier", HFILL }}, { &hf_gtp_qos_spare1, { "Spare", "gtp.qos_spare1", FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE1_MASK, "Spare (shall be sent as '00' )", HFILL }}, { &hf_gtp_qos_delay, { "QoS delay", "gtp.qos_delay", FT_UINT8, BASE_DEC, VALS(qos_delay_type), GTP_EXT_QOS_DELAY_MASK, "Quality of Service Delay Class", HFILL }}, { &hf_gtp_qos_reliability, { "QoS reliability", "gtp.qos_reliabilty", FT_UINT8, BASE_DEC, VALS(qos_reliability_type), GTP_EXT_QOS_RELIABILITY_MASK, "Quality of Service Reliability Class", HFILL }}, { &hf_gtp_qos_peak, { "QoS peak", "gtp.qos_peak", FT_UINT8, BASE_DEC, VALS(qos_peak_type), GTP_EXT_QOS_PEAK_MASK, "Quality of Service Peak Throughput", HFILL }}, { &hf_gtp_qos_spare2, { "Spare", "gtp.qos_spare2",FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE2_MASK, "Spare (shall be sent as 0)", HFILL }}, { &hf_gtp_qos_precedence, { "QoS precedence", "gtp.qos_precedence", FT_UINT8, BASE_DEC, VALS(qos_precedence_type), GTP_EXT_QOS_PRECEDENCE_MASK, "Quality of Service Precedence Class", HFILL }}, { &hf_gtp_qos_spare3, { "Spare", "gtp.qos_spare3", FT_UINT8, BASE_DEC, NULL, GTP_EXT_QOS_SPARE3_MASK, "Spare (shall be sent as '000' )", HFILL }}, { &hf_gtp_qos_mean, { "QoS mean", "gtp.qos_mean", FT_UINT8, BASE_DEC, VALS(qos_mean_type), GTP_EXT_QOS_MEAN_MASK, "Quality of Service Mean Throughput", HFILL }}, { &hf_gtp_qos_al_ret_priority, { "Allocation/Retention priority ","gtp.qos_al_ret_priority", FT_UINT8, BASE_DEC, NULL, 0, "Allocation/Retention Priority", HFILL }}, { &hf_gtp_qos_traf_class, { "Traffic class", "gtp.qos_traf_class", FT_UINT8, BASE_DEC, VALS(qos_traf_class), GTP_EXT_QOS_TRAF_CLASS_MASK, "Traffic Class", HFILL }}, { &hf_gtp_qos_del_order, { "Delivery order", "gtp.qos_del_order", FT_UINT8, BASE_DEC, VALS(qos_del_order), GTP_EXT_QOS_DEL_ORDER_MASK, "Delivery Order", HFILL }}, { &hf_gtp_qos_del_err_sdu, { "Delivery of erroneous SDU", "gtp.qos_del_err_sdu", FT_UINT8, BASE_DEC, VALS(qos_del_err_sdu), GTP_EXT_QOS_DEL_ERR_SDU_MASK, "Delivery of Erroneous SDU", HFILL }}, { &hf_gtp_qos_max_sdu_size, { "Maximum SDU size", "gtp.qos_max_sdu_size", FT_UINT8, BASE_DEC, VALS(qos_max_sdu_size), 0, "Maximum SDU size", HFILL }}, { &hf_gtp_qos_max_ul, { "Maximum bit rate for uplink", "gtp.qos_max_ul", FT_UINT8, BASE_DEC, VALS(qos_max_ul), 0, "Maximum bit rate for uplink", HFILL }}, { &hf_gtp_qos_max_dl, { "Maximum bit rate for downlink", "gtp.qos_max_dl", FT_UINT8, BASE_DEC, VALS(qos_max_dl), 0, "Maximum bit rate for downlink", HFILL }}, { &hf_gtp_qos_res_ber, { "Residual BER", "gtp.qos_res_ber", FT_UINT8, BASE_DEC, VALS(qos_res_ber), GTP_EXT_QOS_RES_BER_MASK, "Residual Bit Error Rate", HFILL }}, { &hf_gtp_qos_sdu_err_ratio, { "SDU Error ratio", "gtp.qos_sdu_err_ratio", FT_UINT8, BASE_DEC, VALS(qos_sdu_err_ratio), GTP_EXT_QOS_SDU_ERR_RATIO_MASK, "SDU Error Ratio", HFILL }}, { &hf_gtp_qos_trans_delay, { "Transfer delay", "gtp.qos_trans_delay", FT_UINT8, BASE_DEC, VALS(qos_trans_delay), GTP_EXT_QOS_TRANS_DELAY_MASK, "Transfer Delay", HFILL }}, { &hf_gtp_qos_traf_handl_prio, { "Traffic handling priority", "gtp.qos_traf_handl_prio", FT_UINT8, BASE_DEC, VALS(qos_traf_handl_prio), GTP_EXT_QOS_TRAF_HANDL_PRIORITY_MASK, "Traffic Handling Priority", HFILL }}, { &hf_gtp_qos_guar_ul, { "Guaranteed bit rate for uplink", "gtp.qos_guar_ul", FT_UINT8, BASE_DEC, VALS(qos_guar_ul), 0, "Guaranteed bit rate for uplink", HFILL }}, { &hf_gtp_qos_guar_dl, { "Guaranteed bit rate for downlink", "gtp.qos_guar_dl", FT_UINT8, BASE_DEC, VALS(qos_guar_dl), 0, "Guaranteed bit rate for downlink", HFILL }}, { &hf_gtp_pkt_flow_id, { "Packet Flow ID", "gtp.pkt_flow_id", FT_UINT8, BASE_DEC, NULL, 0, "Packet Flow ID", HFILL }}, { &hf_gtp_ptmsi, { "P-TMSI", "gtp.ptmsi", FT_UINT32, BASE_HEX, NULL, 0, "Packet-Temporary Mobile Subscriber Identity", HFILL }}, { &hf_gtp_ptmsi_sig, { "P-TMSI Signature", "gtp.ptmsi_sig", FT_UINT24, BASE_HEX, NULL, 0, "P-TMSI Signature", HFILL }}, { &hf_gtp_rab_gtpu_dn, { "Downlink GTP-U seq number", "gtp.rab_gtp_dn", FT_UINT16, BASE_DEC, NULL, 0, "Downlink GTP-U sequence number", HFILL }}, { &hf_gtp_rab_gtpu_up, { "Uplink GTP-U seq number", "gtp.rab_gtp_up", FT_UINT16, BASE_DEC, NULL, 0, "Uplink GTP-U sequence number", HFILL }}, { &hf_gtp_rab_pdu_dn, { "Downlink next PDCP-PDU seq number", "gtp.rab_pdu_dn", FT_UINT8, BASE_DEC, NULL, 0, "Downlink next PDCP-PDU sequence number", HFILL }}, { &hf_gtp_rab_pdu_up, { "Uplink next PDCP-PDU seq number", "gtp.rab_pdu_up", FT_UINT8, BASE_DEC, NULL, 0, "Uplink next PDCP-PDU sequence number", HFILL }}, { &hf_gtp_rai_mcc, { "MCC", "gtp.mcc", FT_UINT16, BASE_DEC, NULL, 0, "Mobile Country Code", HFILL }}, { &hf_gtp_rai_mnc, { "MNC", "gtp.mnc", FT_UINT8, BASE_DEC, NULL, 0, "Mobile Network Code", HFILL }}, { &hf_gtp_rai_rac, { "RAC", "gtp.rac", FT_UINT8, BASE_DEC, NULL, 0, "Routing Area Code", HFILL }}, { &hf_gtp_rai_lac, { "LAC", "gtp.lac", FT_UINT16, BASE_DEC, NULL, 0, "Location Area Code", HFILL }}, { &hf_gtp_ranap_cause, { "RANAP cause", "gtp.ranap_cause", FT_UINT8, BASE_DEC, VALS(ranap_cause_type), 0, "RANAP cause", HFILL }}, { &hf_gtp_recovery, { "Recovery", "gtp.recovery", FT_UINT8, BASE_DEC, NULL, 0, "Restart counter", HFILL }}, { &hf_gtp_reorder, { "Reordering required","gtp.reorder", FT_BOOLEAN, BASE_NONE,NULL, 0, "Reordering required", HFILL }}, { &hf_gtp_rnc_ipv4, { "RNC address IPv4", "gtp.rnc_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "Radio Network Controller address IPv4", HFILL }}, { &hf_gtp_rnc_ipv6, { "RNC address IPv6", "gtp.rnc_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "Radio Network Controller address IPv6", HFILL }}, { &hf_gtp_rp, { "Radio Priority", "gtp.rp", FT_UINT8, BASE_DEC, NULL, GTPv1_EXT_RP_MASK, "Radio Priority for uplink tx", HFILL }}, { &hf_gtp_rp_nsapi, { "NSAPI in Radio Priority", "gtp.rp_nsapi", FT_UINT8, BASE_DEC, NULL, GTPv1_EXT_RP_NSAPI_MASK, "Network layer Service Access Point Identifier in Radio Priority", HFILL }}, { &hf_gtp_rp_sms, { "Radio Priority SMS", "gtp.rp_sms", FT_UINT8, BASE_DEC, NULL, 0, "Radio Priority for MO SMS", HFILL }}, { &hf_gtp_rp_spare, { "Reserved", "gtp.rp_spare", FT_UINT8, BASE_DEC, NULL, GTPv1_EXT_RP_SPARE_MASK, "Spare bit", HFILL }}, { &hf_gtp_sel_mode, { "Selection mode", "gtp.sel_mode", FT_UINT8, BASE_DEC, VALS(sel_mode_type), 0, "Selection Mode", HFILL }}, { &hf_gtp_seq_number, { "Sequence number", "gtp.seq_number", FT_UINT16, BASE_HEX, NULL, 0, "Sequence Number", HFILL }}, { &hf_gtp_sndcp_number, { "SNDCP N-PDU LLC Number", "gtp.sndcp_number", FT_UINT8, BASE_HEX, NULL, 0, "SNDCP N-PDU LLC Number", HFILL }}, { &hf_gtp_tear_ind, { "Teardown Indicator", "gtp.tear_ind", FT_BOOLEAN, BASE_NONE,NULL, 0, "Teardown Indicator", HFILL }}, { &hf_gtp_teid, { "TEID", "gtp.teid", FT_UINT32, BASE_HEX, NULL, 0, "Tunnel Endpoint Identifier", HFILL }}, { &hf_gtp_teid_cp, { "TEID Control Plane", "gtp.teid_cp", FT_UINT32, BASE_HEX, NULL, 0, "Tunnel Endpoint Identifier Control Plane", HFILL }}, { &hf_gtp_teid_data, { "TEID Data I", "gtp.teid_data", FT_UINT32, BASE_HEX, NULL, 0, "Tunnel Endpoint Identifier Data I", HFILL }}, { &hf_gtp_teid_ii, { "TEID Data II", "gtp.teid_ii", FT_UINT32, BASE_HEX, NULL, 0, "Tunnel Endpoint Identifier Data II", HFILL }}, { &hf_gtp_tft_code, { "TFT operation code", "gtp.tft_code", FT_UINT8, BASE_DEC, VALS (tft_code_type), GTPv1_TFT_CODE_MASK, "TFT operation code", HFILL }}, { &hf_gtp_tft_spare, { "TFT spare bit", "gtp.tft_spare", FT_UINT8, BASE_DEC, NULL, GTPv1_TFT_SPARE_MASK, "TFT spare bit", HFILL }}, { &hf_gtp_tft_number, { "Number of packet filters", "gtp.tft_number", FT_UINT8, BASE_DEC, NULL, GTPv1_TFT_NUMBER_MASK, "Number of packet filters", HFILL }}, { &hf_gtp_tft_eval, { "Evaluation precedence", "gtp.tft_eval", FT_UINT8, BASE_DEC, NULL, 0, "Evaluation precedence", HFILL }}, { &hf_gtp_tid, { "TID", "gtp.tid", FT_STRING, BASE_DEC, NULL, 0, "Tunnel Identifier", HFILL }}, { &hf_gtp_tlli, { "TLLI", "gtp.tlli", FT_UINT32, BASE_HEX, NULL, 0, "Temporary Logical Link Identity", HFILL }}, { &hf_gtp_tr_comm, { "Packet transfer command", "gtp.tr_comm", FT_UINT8, BASE_DEC, VALS (tr_comm_type), 0, "Packat transfer command", HFILL }}, { &hf_gtp_trace_ref, { "Trace reference", "gtp.trace_ref", FT_UINT16, BASE_HEX, NULL, 0, "Trace reference", HFILL }}, { &hf_gtp_trace_type, { "Trace type", "gtp.trace_type", FT_UINT16, BASE_HEX, NULL, 0, "Trace type", HFILL }}, { &hf_gtp_unknown, { "Unknown data (length)", "gtp.unknown", FT_UINT16, BASE_DEC, NULL, 0, "Unknown data", HFILL }}, { &hf_gtp_user_addr_pdp_org, { "PDP type organization", "gtp.user_addr_pdp_org", FT_UINT8, BASE_DEC, VALS(pdp_org_type), 0, "PDP type organization", HFILL }}, { &hf_gtp_user_addr_pdp_type, { "PDP type number", "gtp.user_addr_pdp_type", FT_UINT8, BASE_HEX, VALS (pdp_type), 0, "PDP type", HFILL }}, { &hf_gtp_user_ipv4, { "End user address IPv4", "gtp.user_ipv4", FT_IPv4, BASE_DEC, NULL, 0, "End user address IPv4", HFILL }}, { &hf_gtp_user_ipv6, { "End user address IPv6", "gtp.user_ipv6", FT_IPv6, BASE_HEX, NULL, 0, "End user address IPv6", HFILL }}, }; static gint *ett_gtp_array[] = { &ett_gtp, &ett_gtp_flags, &ett_gtp_ext, &ett_gtp_rai, &ett_gtp_qos, &ett_gtp_auth_tri, &ett_gtp_flow_ii, &ett_gtp_rab_cntxt, &ett_gtp_rp, &ett_gtp_pkt_flow_id, &ett_gtp_chrg_char, &ett_gtp_user, &ett_gtp_mm, &ett_gtp_trip, &ett_gtp_quint, &ett_gtp_pdp, &ett_gtp_apn, &ett_gtp_proto, &ett_gtp_gsn_addr, &ett_gtp_tft, &ett_gtp_tft_pf, &ett_gtp_tft_flags, &ett_gtp_rab_setup, &ett_gtp_hdr_list, &ett_gtp_chrg_addr, &ett_gtp_node_addr, &ett_gtp_rel_pack, &ett_gtp_can_pack, &ett_gtp_data_resp, &ett_gtp_priv_ext, }; module_t *gtp_module; proto_gtp = proto_register_protocol ("GPRS Tunneling Protocol", "GTP", "gtp"); proto_register_field_array (proto_gtp, hf_gtp, array_length (hf_gtp)); proto_register_subtree_array (ett_gtp_array, array_length (ett_gtp_array)); gtp_module = prefs_register_protocol(proto_gtp, proto_reg_handoff_gtp); prefs_register_uint_preference(gtp_module, "v0_port", "GTPv0 port", "GTPv0 port (default 3386)", 10, &g_gtpv0_port); prefs_register_uint_preference(gtp_module, "v1c_port", "GTPv1 control plane (GTP-C) port", "GTPv1 control plane port (default 2123)", 10, &g_gtpv1c_port); prefs_register_uint_preference(gtp_module, "v1u_port", "GTPv1 user plane (GTP-U) port", "GTPv1 user plane port (default 2152)", 10, &g_gtpv1u_port); prefs_register_bool_preference(gtp_module, "dissect_tpdu", "Dissect T-PDU", "Dissect T-PDU", >p_tpdu); prefs_register_obsolete_preference (gtp_module, "v0_dissect_cdr_as"); prefs_register_obsolete_preference (gtp_module, "v0_check_etsi"); prefs_register_obsolete_preference (gtp_module, "v1_check_etsi"); prefs_register_bool_preference (gtp_module, "check_etsi", "Compare GTP order with ETSI", "GTP ETSI order", >p_etsi_order); prefs_register_obsolete_preference(gtp_module, "ppp_reorder"); register_dissector("gtp", dissect_gtp, proto_gtp); } void proto_reg_handoff_gtp(void) { static int Initialized = FALSE; static dissector_handle_t gtp_handle; if (!Initialized) { gtp_handle = find_dissector("gtp"); ppp_subdissector_table = find_dissector_table("ppp.protocol"); Initialized = TRUE; } else { dissector_delete ("udp.port", gtpv0_port, gtp_handle); dissector_delete ("tcp.port", gtpv0_port, gtp_handle); dissector_delete ("udp.port", gtpv1c_port, gtp_handle); dissector_delete ("tcp.port", gtpv1c_port, gtp_handle); dissector_delete ("udp.port", gtpv1u_port, gtp_handle); dissector_delete ("tcp.port", gtpv1u_port, gtp_handle); } gtpv0_port = g_gtpv0_port; gtpv1c_port = g_gtpv1c_port; gtpv1u_port = g_gtpv1u_port; dissector_add ("udp.port", g_gtpv0_port, gtp_handle); dissector_add ("tcp.port", g_gtpv0_port, gtp_handle); dissector_add ("udp.port", g_gtpv1c_port, gtp_handle); dissector_add ("tcp.port", g_gtpv1c_port, gtp_handle); dissector_add ("udp.port", g_gtpv1u_port, gtp_handle); dissector_add ("tcp.port", g_gtpv1u_port, gtp_handle); ip_handle = find_dissector("ip"); ipv6_handle = find_dissector("ipv6"); ppp_handle = find_dissector("ppp"); data_handle = find_dissector("data"); gtpcdr_handle = find_dissector("gtpcdr"); }