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wireshark/epan/dissectors/packet-gsmtap.c

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/* packet-gsmtap.c
* Routines for GSMTAP captures
*
* (C) 2008-2013 by Harald Welte <laforge@gnumonks.org>
* (C) 2011 by Holger Hans Peter Freyther
* (C) 2020 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
/* GSMTAP is a generic header format for GSM protocol captures,
* it uses the IANA-assigned UDP port number 4729 and carries
* payload in various formats of GSM interfaces such as Um MAC
* blocks or Um bursts.
*
* It is defined by the gsmtap.h libosmocore header, in
*
* http://cgit.osmocom.org/libosmocore/tree/include/osmocom/core/gsmtap.h
*
* Example programs generating GSMTAP data are airprobe
* (http://git.gnumonks.org/cgit/airprobe/) or OsmocomBB (http://bb.osmocom.org/)
*
* It has also been used for Tetra by the OsmocomTETRA project.
* (http://tetra.osmocom.org/)
*
* GSMTAP also carries payload in various formats of WiMAX interfaces.
* It uses the wimax plugin to decode the WiMAX bursts.
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/conversation.h>
#include <epan/dissectors/packet-gsm_rlcmac.h>
#include "packet-gsmtap.h"
#include "packet-lapdm.h"
#include "packet-tetra.h"
void proto_register_gsmtap(void);
void proto_reg_handoff_gsmtap(void);
static int proto_gsmtap = -1;
static int hf_gsmtap_version = -1;
static int hf_gsmtap_hdrlen = -1;
static int hf_gsmtap_type = -1;
static int hf_gsmtap_timeslot = -1;
static int hf_gsmtap_subslot = -1;
static int hf_gsmtap_arfcn = -1;
static int hf_gsmtap_uplink = -1;
static int hf_gsmtap_pcs = -1;
static int hf_gsmtap_signal_dbm = -1;
static int hf_gsmtap_snr_db = -1;
static int hf_gsmtap_frame_nr = -1;
static int hf_gsmtap_burst_type = -1;
static int hf_gsmtap_channel_type = -1;
static int hf_gsmtap_tetra_channel_type = -1;
static int hf_gsmtap_gmr1_channel_type = -1;
static int hf_gsmtap_rrc_sub_type = -1;
static int hf_gsmtap_e1t1_sub_type = -1;
static int hf_gsmtap_antenna = -1;
static int hf_sacch_l1h_power_lev = -1;
static int hf_sacch_l1h_fpc = -1;
static int hf_sacch_l1h_sro_srr = -1;
static int hf_sacch_l1h_ta = -1;
static int hf_ptcch_spare = -1;
static int hf_ptcch_ta_idx = -1;
static int hf_ptcch_ta_val = -1;
static int hf_ptcch_padding = -1;
static int hf_um_voice_type = -1;
static gint ett_gsmtap = -1;
enum {
GSMTAP_SUB_DATA = 0,
GSMTAP_SUB_UM,
GSMTAP_SUB_UM_LAPDM,
GSMTAP_SUB_UM_RLC_MAC_UL,
GSMTAP_SUB_UM_RLC_MAC_DL,
GSMTAP_SUB_LLC,
GSMTAP_SUB_SNDCP,
GSMTAP_SUB_ABIS,
/* WiMAX sub handles */
GSMTAP_SUB_CDMA_CODE,
GSMTAP_SUB_FCH,
GSMTAP_SUB_FFB,
GSMTAP_SUB_PDU,
GSMTAP_SUB_HACK,
GSMTAP_SUB_PHY_ATTRIBUTES,
GSMTAP_SUB_CBCH,
GSMTAP_SUB_SIM,
/* GMR-1 sub handles */
GSMTAP_SUB_GMR1_BCCH,
GSMTAP_SUB_GMR1_CCCH,
GSMTAP_SUB_GMR1_LAPSAT,
GSMTAP_SUB_GMR1_RACH,
/* UMTS */
GSMTAP_SUB_UMTS_RLC_MAC,
GSMTAP_SUB_UMTS_RRC,
/* LTE*/
GSMTAP_SUB_LTE_RRC,
GSMTAP_SUB_LTE_NAS,
GSMTAP_SUB_LAPD,
GSMTAP_SUB_FR,
GSMTAP_SUB_V5EF,
GSMTAP_SUB_MAX
};
enum {
GSMTAP_RRC_SUB_DL_DCCH_Message = 0,
GSMTAP_RRC_SUB_UL_DCCH_Message,
GSMTAP_RRC_SUB_DL_CCCH_Message,
GSMTAP_RRC_SUB_UL_CCCH_Message,
GSMTAP_RRC_SUB_PCCH_Message,
GSMTAP_RRC_SUB_DL_SHCCH_Message,
GSMTAP_RRC_SUB_UL_SHCCH_Message,
GSMTAP_RRC_SUB_BCCH_FACH_Message,
GSMTAP_RRC_SUB_BCCH_BCH_Message,
GSMTAP_RRC_SUB_MCCH_Message,
GSMTAP_RRC_SUB_MSCH_Message,
GSMTAP_RRC_SUB_HandoverToUTRANCommand,
GSMTAP_RRC_SUB_InterRATHandoverInfo,
GSMTAP_RRC_SUB_SystemInformation_BCH,
GSMTAP_RRC_SUB_System_Information_Container,
GSMTAP_RRC_SUB_UE_RadioAccessCapabilityInfo,
GSMTAP_RRC_SUB_MasterInformationBlock,
GSMTAP_RRC_SUB_SysInfoType1,
GSMTAP_RRC_SUB_SysInfoType2,
GSMTAP_RRC_SUB_SysInfoType3,
GSMTAP_RRC_SUB_SysInfoType4,
GSMTAP_RRC_SUB_SysInfoType5,
GSMTAP_RRC_SUB_SysInfoType5bis,
GSMTAP_RRC_SUB_SysInfoType6,
GSMTAP_RRC_SUB_SysInfoType7,
GSMTAP_RRC_SUB_SysInfoType8,
GSMTAP_RRC_SUB_SysInfoType9,
GSMTAP_RRC_SUB_SysInfoType10,
GSMTAP_RRC_SUB_SysInfoType11,
GSMTAP_RRC_SUB_SysInfoType11bis,
GSMTAP_RRC_SUB_SysInfoType12,
GSMTAP_RRC_SUB_SysInfoType13,
GSMTAP_RRC_SUB_SysInfoType13_1,
GSMTAP_RRC_SUB_SysInfoType13_2,
GSMTAP_RRC_SUB_SysInfoType13_3,
GSMTAP_RRC_SUB_SysInfoType13_4,
GSMTAP_RRC_SUB_SysInfoType14,
GSMTAP_RRC_SUB_SysInfoType15,
GSMTAP_RRC_SUB_SysInfoType15bis,
GSMTAP_RRC_SUB_SysInfoType15_1,
GSMTAP_RRC_SUB_SysInfoType15_1bis,
GSMTAP_RRC_SUB_SysInfoType15_2,
GSMTAP_RRC_SUB_SysInfoType15_2bis,
GSMTAP_RRC_SUB_SysInfoType15_2ter,
GSMTAP_RRC_SUB_SysInfoType15_3,
GSMTAP_RRC_SUB_SysInfoType15_3bis,
GSMTAP_RRC_SUB_SysInfoType15_4,
GSMTAP_RRC_SUB_SysInfoType15_5,
GSMTAP_RRC_SUB_SysInfoType15_6,
GSMTAP_RRC_SUB_SysInfoType15_7,
GSMTAP_RRC_SUB_SysInfoType15_8,
GSMTAP_RRC_SUB_SysInfoType16,
GSMTAP_RRC_SUB_SysInfoType17,
GSMTAP_RRC_SUB_SysInfoType18,
GSMTAP_RRC_SUB_SysInfoType19,
GSMTAP_RRC_SUB_SysInfoType20,
GSMTAP_RRC_SUB_SysInfoType21,
GSMTAP_RRC_SUB_SysInfoType22,
GSMTAP_RRC_SUB_SysInfoTypeSB1,
GSMTAP_RRC_SUB_SysInfoTypeSB2,
GSMTAP_RRC_SUB_ToTargetRNC_Container,
GSMTAP_RRC_SUB_TargetRNC_ToSourceRNC_Container,
GSMTAP_RRC_SUB_MAX
};
static const value_string rrc_sub_types[] = {
{ GSMTAP_RRC_SUB_DL_DCCH_Message, "RRC DL-DCCH" },
{ GSMTAP_RRC_SUB_UL_DCCH_Message, "RRC UL-DCCH" },
{ GSMTAP_RRC_SUB_DL_CCCH_Message, "RRC DL-CCCH" },
{ GSMTAP_RRC_SUB_UL_CCCH_Message, "RRC UL-CCCH" },
{ GSMTAP_RRC_SUB_PCCH_Message, "RRC PCCH" },
{ GSMTAP_RRC_SUB_DL_SHCCH_Message, "RRC DL-SHCCH" },
{ GSMTAP_RRC_SUB_UL_SHCCH_Message, "RRC UL-SHCCH" },
{ GSMTAP_RRC_SUB_BCCH_FACH_Message, "RRC BCCH-FACH" },
{ GSMTAP_RRC_SUB_BCCH_BCH_Message, "RRC BCCH-BCH" },
{ GSMTAP_RRC_SUB_MCCH_Message, "RRC MCCH" },
{ GSMTAP_RRC_SUB_MSCH_Message, "RRC MSCH" },
{ GSMTAP_RRC_SUB_HandoverToUTRANCommand, "RRC Handover To UTRAN Command" },
{ GSMTAP_RRC_SUB_InterRATHandoverInfo, "RRC Inter RAT Handover Info" },
{ GSMTAP_RRC_SUB_SystemInformation_BCH, "RRC System Information - BCH" },
{ GSMTAP_RRC_SUB_System_Information_Container, "RRC System Information Container" },
{ GSMTAP_RRC_SUB_UE_RadioAccessCapabilityInfo, "RRC UE Radio Access Capability Info" },
{ GSMTAP_RRC_SUB_MasterInformationBlock, "RRC Master Information Block" },
{ GSMTAP_RRC_SUB_SysInfoType1, "RRC System Information Type 1" },
{ GSMTAP_RRC_SUB_SysInfoType2, "RRC System Information Type 2" },
{ GSMTAP_RRC_SUB_SysInfoType3, "RRC System Information Type 3" },
{ GSMTAP_RRC_SUB_SysInfoType4, "RRC System Information Type 4" },
{ GSMTAP_RRC_SUB_SysInfoType5, "RRC System Information Type 5" },
{ GSMTAP_RRC_SUB_SysInfoType5bis, "RRC System Information Type 5bis" },
{ GSMTAP_RRC_SUB_SysInfoType6, "RRC System Information Type 6" },
{ GSMTAP_RRC_SUB_SysInfoType7, "RRC System Information Type 7" },
{ GSMTAP_RRC_SUB_SysInfoType8, "RRC System Information Type 8" },
{ GSMTAP_RRC_SUB_SysInfoType9, "RRC System Information Type 9" },
{ GSMTAP_RRC_SUB_SysInfoType10, "RRC System Information Type 10" },
{ GSMTAP_RRC_SUB_SysInfoType11, "RRC System Information Type 11" },
{ GSMTAP_RRC_SUB_SysInfoType11bis, "RRC System Information Type 11bis" },
{ GSMTAP_RRC_SUB_SysInfoType12, "RRC System Information Type 12" },
{ GSMTAP_RRC_SUB_SysInfoType13, "RRC System Information Type 13" },
{ GSMTAP_RRC_SUB_SysInfoType13_1, "RRC System Information Type 13.1" },
{ GSMTAP_RRC_SUB_SysInfoType13_2, "RRC System Information Type 13.2" },
{ GSMTAP_RRC_SUB_SysInfoType13_3, "RRC System Information Type 13.3" },
{ GSMTAP_RRC_SUB_SysInfoType13_4, "RRC System Information Type 13.4" },
{ GSMTAP_RRC_SUB_SysInfoType14, "RRC System Information Type 14" },
{ GSMTAP_RRC_SUB_SysInfoType15, "RRC System Information Type 15" },
{ GSMTAP_RRC_SUB_SysInfoType15bis, "RRC System Information Type 15bis" },
{ GSMTAP_RRC_SUB_SysInfoType15_1, "RRC System Information Type 15.1" },
{ GSMTAP_RRC_SUB_SysInfoType15_1bis, "RRC System Information Type 15.1bis" },
{ GSMTAP_RRC_SUB_SysInfoType15_2, "RRC System Information Type 15.1" },
{ GSMTAP_RRC_SUB_SysInfoType15_2bis, "RRC System Information Type 15.2bis" },
{ GSMTAP_RRC_SUB_SysInfoType15_2ter, "RRC System Information Type 15.2ter" },
{ GSMTAP_RRC_SUB_SysInfoType15_3, "RRC System Information Type 15.3" },
{ GSMTAP_RRC_SUB_SysInfoType15_3bis, "RRC System Information Type 15.3bis" },
{ GSMTAP_RRC_SUB_SysInfoType15_4, "RRC System Information Type 15.4" },
{ GSMTAP_RRC_SUB_SysInfoType15_5, "RRC System Information Type 15.5" },
{ GSMTAP_RRC_SUB_SysInfoType15_6, "RRC System Information Type 15.6" },
{ GSMTAP_RRC_SUB_SysInfoType15_7, "RRC System Information Type 15.7 "},
{ GSMTAP_RRC_SUB_SysInfoType15_8, "RRC System Information Type 15.8" },
{ GSMTAP_RRC_SUB_SysInfoType16, "RRC System Information Type 16" },
{ GSMTAP_RRC_SUB_SysInfoType17, "RRC System Information Type 17" },
{ GSMTAP_RRC_SUB_SysInfoType18, "RRC System Information Type 18" },
{ GSMTAP_RRC_SUB_SysInfoType19, "RRC System Information Type 19" },
{ GSMTAP_RRC_SUB_SysInfoType20, "RRC System Information Type 20" },
{ GSMTAP_RRC_SUB_SysInfoType21, "RRC System Information Type 21" },
{ GSMTAP_RRC_SUB_SysInfoType22, "RRC System Information Type 22" },
{ GSMTAP_RRC_SUB_SysInfoTypeSB1, "RRC System Information Type SB 1" },
{ GSMTAP_RRC_SUB_SysInfoTypeSB2, "RRC System Information Type SB 2" },
{ GSMTAP_RRC_SUB_ToTargetRNC_Container, "RRC To Target RNC Container" },
{ GSMTAP_RRC_SUB_TargetRNC_ToSourceRNC_Container, "RRC Target RNC To Source RNC Container" },
{ 0, NULL }
};
/* LTE RRC message types */
enum {
GSMTAP_LTE_RRC_SUB_DL_CCCH_Message = 0,
GSMTAP_LTE_RRC_SUB_DL_DCCH_Message,
GSMTAP_LTE_RRC_SUB_UL_CCCH_Message,
GSMTAP_LTE_RRC_SUB_UL_DCCH_Message,
GSMTAP_LTE_RRC_SUB_BCCH_BCH_Message,
GSMTAP_LTE_RRC_SUB_BCCH_DL_SCH_Message,
GSMTAP_LTE_RRC_SUB_PCCH_Message,
GSMTAP_LTE_RRC_SUB_MCCH_Message,
GSMTAP_LTE_RRC_SUB_BCCH_BCH_Message_MBMS,
GSMTAP_LTE_RRC_SUB_BCCH_DL_SCH_Message_BR,
GSMTAP_LTE_RRC_SUB_BCCH_DL_SCH_Message_MBMS,
GSMTAP_LTE_RRC_SUB_SC_MCCH_Message,
GSMTAP_LTE_RRC_SUB_SBCCH_SL_BCH_Message,
GSMTAP_LTE_RRC_SUB_SBCCH_SL_BCH_Message_V2X,
GSMTAP_LTE_RRC_SUB_DL_CCCH_Message_NB,
GSMTAP_LTE_RRC_SUB_DL_DCCH_Message_NB,
GSMTAP_LTE_RRC_SUB_UL_CCCH_Message_NB,
GSMTAP_LTE_RRC_SUB_UL_DCCH_Message_NB,
GSMTAP_LTE_RRC_SUB_BCCH_BCH_Message_NB,
GSMTAP_LTE_RRC_SUB_BCCH_BCH_Message_TDD_NB,
GSMTAP_LTE_RRC_SUB_BCCH_DL_SCH_Message_NB,
GSMTAP_LTE_RRC_SUB_PCCH_Message_NB,
GSMTAP_LTE_RRC_SUB_SC_MCCH_Message_NB,
GSMTAP_LTE_RRC_SUB_MAX
};
/* LTE NAS message types */
enum {
GSMTAP_LTE_NAS_PLAIN = 0,
GSMTAP_LTE_NAS_SEC_HEADER,
GSMTAP_LTE_NAS_SUB_MAX
};
/*! First byte of type==GSMTAP_TYPE_UM sub_type==GSMTAP_CHANNEL_VOICE payload */
enum gsmtap_um_voice_type {
/*! 1 byte TOC + 112 bits (14 octets) = 15 octets payload;
* Reference is RFC5993 Section 5.2.1 + 3GPP TS 46.030 Annex B */
GSMTAP_UM_VOICE_HR,
/*! 33 payload bytes; Reference is RFC3551 Section 4.5.8.1 */
GSMTAP_UM_VOICE_FR,
/*! 31 payload bytes; Reference is RFC3551 Section 4.5.9 + ETSI TS 101 318 */
GSMTAP_UM_VOICE_EFR,
/*! 1 byte TOC + 5..31 bytes = 6..32 bytes payload; RFC4867 octet-aligned */
GSMTAP_UM_VOICE_AMR,
/* TODO: Revisit the types below; their usage; ... */
GSMTAP_UM_VOICE_AMR_SID_BAD,
GSMTAP_UM_VOICE_AMR_ONSET,
GSMTAP_UM_VOICE_AMR_RATSCCH,
GSMTAP_UM_VOICE_AMR_SID_UPDATE_INH,
GSMTAP_UM_VOICE_AMR_SID_FIRST_P1,
GSMTAP_UM_VOICE_AMR_SID_FIRST_P2,
GSMTAP_UM_VOICE_AMR_SID_FIRST_INH,
GSMTAP_UM_VOICE_AMR_RATSCCH_MARKER,
GSMTAP_UM_VOICE_AMR_RATSCCH_DATA,
};
static dissector_handle_t sub_handles[GSMTAP_SUB_MAX];
static dissector_handle_t rrc_sub_handles[GSMTAP_RRC_SUB_MAX];
static dissector_handle_t lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_MAX];
static dissector_handle_t lte_nas_sub_handles[GSMTAP_LTE_NAS_SUB_MAX];
static dissector_table_t gsmtap_dissector_table;
static const value_string gsmtap_bursts[] = {
{ GSMTAP_BURST_UNKNOWN, "UNKNOWN" },
{ GSMTAP_BURST_FCCH, "FCCH" },
{ GSMTAP_BURST_PARTIAL_SCH, "PARTIAL SCH" },
{ GSMTAP_BURST_SCH, "SCH" },
{ GSMTAP_BURST_CTS_SCH, "CTS SCH" },
{ GSMTAP_BURST_COMPACT_SCH, "COMPACT SCH" },
{ GSMTAP_BURST_NORMAL, "NORMAL" },
{ GSMTAP_BURST_DUMMY, "DUMMY" },
{ GSMTAP_BURST_ACCESS, "RACH" },
/* WiMAX bursts */
{ GSMTAP_BURST_CDMA_CODE, "CDMA Code" },
{ GSMTAP_BURST_FCH, "FCH" },
{ GSMTAP_BURST_FFB, "Fast Feedback" },
{ GSMTAP_BURST_PDU, "PDU" },
{ GSMTAP_BURST_HACK, "HACK" },
{ GSMTAP_BURST_PHY_ATTRIBUTES, "PHY Attributes" },
{ 0, NULL },
};
static const value_string gsmtap_channels[] = {
{ GSMTAP_CHANNEL_UNKNOWN, "UNKNOWN" },
{ GSMTAP_CHANNEL_BCCH, "BCCH" },
{ GSMTAP_CHANNEL_CCCH, "CCCH" },
{ GSMTAP_CHANNEL_RACH, "RACH" },
{ GSMTAP_CHANNEL_AGCH, "AGCH" },
{ GSMTAP_CHANNEL_PCH, "PCH" },
{ GSMTAP_CHANNEL_SDCCH, "SDCCH" },
{ GSMTAP_CHANNEL_SDCCH4, "SDCCH/4" },
{ GSMTAP_CHANNEL_SDCCH8, "SDCCH/8" },
{ GSMTAP_CHANNEL_TCH_F, "FACCH/F" },
{ GSMTAP_CHANNEL_TCH_H, "FACCH/H" },
{ GSMTAP_CHANNEL_PACCH, "PACCH" },
{ GSMTAP_CHANNEL_CBCH52, "CBCH" },
{ GSMTAP_CHANNEL_PDTCH, "PDTCH" },
{ GSMTAP_CHANNEL_PTCCH, "PTTCH" },
{ GSMTAP_CHANNEL_CBCH51, "CBCH" },
{ GSMTAP_CHANNEL_VOICE_F, "TCH/F" },
{ GSMTAP_CHANNEL_VOICE_H, "TCH/H" },
{ GSMTAP_CHANNEL_ACCH|
GSMTAP_CHANNEL_SDCCH, "LSACCH" },
{ GSMTAP_CHANNEL_ACCH|
GSMTAP_CHANNEL_SDCCH4, "SACCH/4" },
{ GSMTAP_CHANNEL_ACCH|
GSMTAP_CHANNEL_SDCCH8, "SACCH/8" },
{ GSMTAP_CHANNEL_ACCH|
GSMTAP_CHANNEL_TCH_F, "SACCH/F" },
{ GSMTAP_CHANNEL_ACCH|
GSMTAP_CHANNEL_TCH_H, "SACCH/H" },
{ 0, NULL },
};
static const value_string gsmtap_tetra_channels[] = {
{ GSMTAP_TETRA_BSCH, "BSCH" },
{ GSMTAP_TETRA_AACH, "AACH" },
{ GSMTAP_TETRA_SCH_HU, "SCH/HU" },
{ GSMTAP_TETRA_SCH_HD, "SCH/HD" },
{ GSMTAP_TETRA_SCH_F, "SCH/F" },
{ GSMTAP_TETRA_BNCH, "BNCH" },
{ GSMTAP_TETRA_STCH, "STCH" },
{ GSMTAP_TETRA_TCH_F, "AACH" },
{ 0, NULL },
};
static const value_string gsmtap_gmr1_channels[] = {
{ GSMTAP_GMR1_BCCH, "BCCH" },
{ GSMTAP_GMR1_CCCH, "CCCH" },
{ GSMTAP_GMR1_PCH, "PCH" },
{ GSMTAP_GMR1_AGCH, "AGCH" },
{ GSMTAP_GMR1_BACH, "BACH" },
{ GSMTAP_GMR1_RACH, "RACH" },
{ GSMTAP_GMR1_CBCH, "CBCH" },
{ GSMTAP_GMR1_SDCCH, "SDCCH" },
{ GSMTAP_GMR1_TACCH, "TACCH" },
{ GSMTAP_GMR1_GBCH, "GBCH" },
{ GSMTAP_GMR1_TCH3, "TCH3" },
{ GSMTAP_GMR1_TCH3|
GSMTAP_GMR1_FACCH, "FACCH3" },
{ GSMTAP_GMR1_TCH3|
GSMTAP_GMR1_DKAB, "DKAB" },
{ GSMTAP_GMR1_TCH6, "TCH6" },
{ GSMTAP_GMR1_TCH6|
GSMTAP_GMR1_FACCH, "FACCH6" },
{ GSMTAP_GMR1_TCH6|
GSMTAP_GMR1_SACCH, "SACCH6" },
{ GSMTAP_GMR1_TCH9, "TCH9" },
{ GSMTAP_GMR1_TCH9|
GSMTAP_GMR1_FACCH, "FACCH9" },
{ GSMTAP_GMR1_TCH9|
GSMTAP_GMR1_SACCH, "SACCH9" },
{ 0, NULL },
};
/* the mapping is not complete */
static const int gsmtap_to_tetra[9] = {
0,
TETRA_CHAN_BSCH,
TETRA_CHAN_AACH,
TETRA_CHAN_SCH_HU,
0,
TETRA_CHAN_SCH_F,
TETRA_CHAN_BNCH,
TETRA_CHAN_STCH,
0
};
static const value_string gsmtap_types[] = {
{ GSMTAP_TYPE_UM, "GSM Um (MS<->BTS)" },
{ GSMTAP_TYPE_ABIS, "GSM Abis (BTS<->BSC)" },
{ GSMTAP_TYPE_UM_BURST, "GSM Um burst (MS<->BTS)" },
{ GSMTAP_TYPE_SIM, "SIM" },
{ GSMTAP_TYPE_TETRA_I1, "TETRA V+D"},
{ GSMTAP_TTPE_TETRA_I1_BURST, "TETRA V+D burst"},
{ GSMTAP_TYPE_WMX_BURST,"WiMAX burst" },
{ GSMTAP_TYPE_GMR1_UM, "GMR-1 air interface (MES-MS<->GTS)" },
{ GSMTAP_TYPE_UMTS_RLC_MAC, "UMTS RLC/MAC" },
{ GSMTAP_TYPE_UMTS_RRC, "UMTS RRC" },
{ GSMTAP_TYPE_LTE_RRC, "LTE RRC" },
{ GSMTAP_TYPE_LTE_MAC, "LTE MAC" },
{ GSMTAP_TYPE_LTE_MAC_FRAMED, "LTE MAC framed" },
{ GSMTAP_TYPE_OSMOCORE_LOG, "libosmocore logging" },
{ GSMTAP_TYPE_QC_DIAG, "Qualcomm DIAG" },
{ GSMTAP_TYPE_LTE_NAS, "LTE NAS" },
{ GSMTAP_TYPE_E1T1, "E1/T1" },
{ 0, NULL },
};
static const value_string gsmtap_um_voice_types[] = {
{ GSMTAP_UM_VOICE_HR, "HR" },
{ GSMTAP_UM_VOICE_FR, "FR" },
{ GSMTAP_UM_VOICE_EFR, "EFR" },
{ GSMTAP_UM_VOICE_AMR, "AMR" },
{ GSMTAP_UM_VOICE_AMR_SID_BAD, "AMR_SID_BAD" },
{ GSMTAP_UM_VOICE_AMR_ONSET, "AMR_ONSET" },
{ GSMTAP_UM_VOICE_AMR_RATSCCH, "AMR_RATSCCH" },
{ GSMTAP_UM_VOICE_AMR_SID_UPDATE_INH, "AMR_SID_UPDATE_INH" },
{ GSMTAP_UM_VOICE_AMR_SID_FIRST_P1, "AMR_SID_FIRST_P1" },
{ GSMTAP_UM_VOICE_AMR_SID_FIRST_P2, "AMR_SID_FIRST_P2" },
{ GSMTAP_UM_VOICE_AMR_SID_FIRST_INH, "AMR_SID_FIRST_INH" },
{ GSMTAP_UM_VOICE_AMR_RATSCCH_MARKER, "AMR_RATSCCH_MARKER" },
{ GSMTAP_UM_VOICE_AMR_RATSCCH_DATA, "AMR_RATSCCH_DATA" },
{ 0, NULL },
};
static const value_string gsmtap_um_e1t1_types[] = {
{ GSMTAP_E1T1_LAPD, "LAPD" }, /* ISDN LAPD Q.921 */
{ GSMTAP_E1T1_FR, "FR" }, /* Frame Relay */
{ GSMTAP_E1T1_RAW, "RAW" }, /* RAW/transparent B-channels */
{ GSMTAP_E1T1_TRAU16, "TRAU 16k" }, /* 16k/s sub-channels (I.460) with GSM TRAU frames */
{ GSMTAP_E1T1_TRAU8, "TRAU 8k" }, /* 8k/s sub-channels (I.460) with GSM TRAU frames */
{ GSMTAP_E1T1_V5EF, "V5-EF" }, /* V5 Envelope Function */
{ 0, NULL },
};
/* dissect a SACCH L1 header which is included in the first 2 bytes
* of every SACCH frame (according to TS 04.04) */
static void
dissect_sacch_l1h(tvbuff_t *tvb, proto_tree *tree)
{
proto_item *ti;
proto_tree *l1h_tree = NULL;
if (!tree)
return;
ti = proto_tree_add_protocol_format(tree, proto_gsmtap, tvb, 0, 2,
"SACCH L1 Header, Power Level: %u, Timing Advance: %u",
tvb_get_guint8(tvb, 0) & 0x1f,
tvb_get_guint8(tvb, 1));
l1h_tree = proto_item_add_subtree(ti, ett_gsmtap);
/* Power Level */
proto_tree_add_item(l1h_tree, hf_sacch_l1h_power_lev, tvb, 0, 1, ENC_BIG_ENDIAN);
/* Fast Power Control */
proto_tree_add_item(l1h_tree, hf_sacch_l1h_fpc, tvb, 0, 1, ENC_BIG_ENDIAN);
/* SRO/SRR (SACCH Repetition) bit */
proto_tree_add_item(l1h_tree, hf_sacch_l1h_sro_srr, tvb, 0, 1, ENC_BIG_ENDIAN);
/* Acutal Timing Advance */
proto_tree_add_item(l1h_tree, hf_sacch_l1h_ta, tvb, 1, 1, ENC_BIG_ENDIAN);
}
/* Dissect a PTCCH/D (Packet Timing Advance Control Channel) message.
* See 3GPP TS 45.010, section 5.6.2 and 3GPP TS 45.002, section 3.3.4.2.
*
* +--------------+--------------+-----+---------------+------------------+
* | Octet 1 | Octet 2 | | Octet 16 | Octet 17 .. 23 |
* +---+----------+---+----------+-----+---+-----------+------------------+
* | 0 | TA TAI=0 | 0 | TA TAI=1 | ... | 0 | TA TAI=15 | Padding 00101011 |
* +---+----------+---+----------+-----+---+-----------+------------------+
*/
static void
dissect_ptcch_dl(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_tree *sub_tree;
proto_item *ti, *gi;
int offset;
col_set_str(pinfo->cinfo, COL_INFO, "Packet Timing Advance Control");
if (!tree)
return;
ti = proto_tree_add_protocol_format(tree, proto_gsmtap, tvb, 0, 23,
"PTCCH (Packet Timing Advance Control Channel) on Downlink");
sub_tree = proto_item_add_subtree(ti, ett_gsmtap);
for (offset = 0; offset < 16; offset++) {
/* Meta info: Timing Advance Index */
gi = proto_tree_add_uint(sub_tree, hf_ptcch_ta_idx, tvb, 0, 0, offset);
proto_item_set_generated(gi);
proto_tree_add_item(sub_tree, hf_ptcch_spare, tvb, offset, 1, ENC_NA);
proto_tree_add_item(sub_tree, hf_ptcch_ta_val, tvb, offset, 1, ENC_NA);
}
/* Spare padding */
proto_tree_add_item(sub_tree, hf_ptcch_padding, tvb, offset, -1, ENC_NA);
}
static void
handle_lapdm(guint8 sub_type, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
lapdm_data_t ld;
ld.hdr_type = LAPDM_HDR_FMT_B;
/* only downlink SACCH frames use B4 header format */
if (sub_type & GSMTAP_CHANNEL_ACCH && pinfo->p2p_dir == P2P_DIR_RECV)
ld.hdr_type = LAPDM_HDR_FMT_B4;
call_dissector_with_data(sub_handles[GSMTAP_SUB_UM_LAPDM], tvb, pinfo, tree, &ld);
}
static void
dissect_um_voice(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
tvbuff_t *payload_tvb;
guint8 vtype = tvb_get_guint8(tvb, 0);
col_add_fstr(pinfo->cinfo, COL_INFO, "GSM CS User Plane (Voice/CSD): %s",
val_to_str(vtype, gsmtap_um_voice_types, "Unknown %d"));
proto_tree_add_item(tree, hf_um_voice_type, tvb, 0, 1, ENC_NA);
payload_tvb = tvb_new_subset_length(tvb, 1, tvb_reported_length(tvb)-1);
call_dissector(sub_handles[GSMTAP_SUB_DATA], payload_tvb, pinfo, tree);
}
static void
handle_tetra(int channel, tvbuff_t *payload_tvb, packet_info *pinfo, proto_tree *tree)
{
int tetra_chan;
if (channel < 0 || channel > GSMTAP_TETRA_TCH_F)
return;
tetra_chan = gsmtap_to_tetra[channel];
if (tetra_chan <= 0)
return;
tetra_dissect_pdu(tetra_chan, TETRA_DOWNLINK, payload_tvb, tree, pinfo);
}
/* length of an EGPRS RLC data block for given MCS */
static const guint data_block_len_by_mcs[] = {
0, /* MCS0 */
22, /* MCS1 */
28,
37,
44,
56,
74,
56,
68,
74, /* MCS9 */
0, /* MCS_INVALID */
};
/* determine the number of rlc data blocks and their size / offsets */
static void
setup_rlc_mac_priv(RlcMacPrivateData_t *rm, gboolean is_uplink,
guint *n_calls, guint *data_block_bits, guint *data_block_offsets)
{
guint nc, dbl = 0, dbo[2] = {0,0};
dbl = data_block_len_by_mcs[rm->mcs];
switch (rm->block_format) {
case RLCMAC_HDR_TYPE_1:
nc = 3;
dbo[0] = is_uplink ? 5*8 + 6 : 5*8 + 0;
dbo[1] = dbo[0] + dbl * 8 + 2;
break;
case RLCMAC_HDR_TYPE_2:
nc = 2;
dbo[0] = is_uplink ? 4*8 + 5 : 3*8 + 4;
break;
case RLCMAC_HDR_TYPE_3:
nc = 2;
dbo[0] = 3*8 + 7;
break;
default:
nc = 1;
break;
}
*n_calls = nc;
*data_block_bits = dbl * 8 + 2;
data_block_offsets[0] = dbo[0];
data_block_offsets[1] = dbo[1];
}
/* bit-shift the entire 'src' of length 'length_bytes' by 'offset_bits'
* and store the reuslt to caller-allocated 'buffer'. The shifting is
* done lsb-first, unlike tvb_new_octet_aligned() */
static void clone_aligned_buffer_lsbf(guint offset_bits, guint length_bytes,
const guint8 *src, guint8 *buffer)
{
guint hdr_bytes;
guint extra_bits;
guint i;
guint8 c, last_c;
guint8 *dst;
hdr_bytes = offset_bits / 8;
extra_bits = offset_bits % 8;
if (extra_bits == 0) {
/* It is aligned already */
memmove(buffer, src + hdr_bytes, length_bytes);
return;
}
dst = buffer;
src = src + hdr_bytes;
last_c = *(src++);
for (i = 0; i < length_bytes; i++) {
c = src[i];
*(dst++) = (last_c >> extra_bits) | (c << (8 - extra_bits));
last_c = c;
}
}
/* obtain an (aligned) EGPRS data block with given bit-offset and
* bit-length from the parent TVB */
static tvbuff_t *get_egprs_data_block(tvbuff_t *tvb, guint offset_bits,
guint length_bits, packet_info *pinfo)
{
tvbuff_t *aligned_tvb;
const guint initial_spare_bits = 6;
guint8 *aligned_buf;
guint min_src_length_bytes = (offset_bits + length_bits + 7) / 8;
guint length_bytes = (initial_spare_bits + length_bits + 7) / 8;
tvb_ensure_bytes_exist(tvb, 0, min_src_length_bytes);
aligned_buf = (guint8 *) wmem_alloc(pinfo->pool, length_bytes);
/* Copy the data out of the tvb to an aligned buffer */
clone_aligned_buffer_lsbf(
offset_bits - initial_spare_bits, length_bytes,
tvb_get_ptr(tvb, 0, min_src_length_bytes),
aligned_buf);
/* clear spare bits and move block header bits to the right */
aligned_buf[0] = aligned_buf[0] >> initial_spare_bits;
aligned_tvb = tvb_new_child_real_data(tvb, aligned_buf,
length_bytes, length_bytes);
add_new_data_source(pinfo, aligned_tvb, "Aligned EGPRS data bits");
return aligned_tvb;
}
static void tvb_len_get_mcs_and_fmt(guint len, gboolean is_uplink, guint *frm, guint8 *mcs)
{
if (len <= 5 && is_uplink) {
/* Assume random access burst */
*frm = RLCMAC_PRACH;
*mcs = 0;
return;
}
switch (len)
{
case 23: *frm = RLCMAC_CS1; *mcs = 0; break;
case 34: *frm = RLCMAC_CS2; *mcs = 0; break;
case 40: *frm = RLCMAC_CS3; *mcs = 0; break;
case 54: *frm = RLCMAC_CS4; *mcs = 0; break;
case 27: *frm = RLCMAC_HDR_TYPE_3; *mcs = 1; break;
case 33: *frm = RLCMAC_HDR_TYPE_3; *mcs = 2; break;
case 42: *frm = RLCMAC_HDR_TYPE_3; *mcs = 3; break;
case 49: *frm = RLCMAC_HDR_TYPE_3; *mcs = 4; break;
case 60: /* fall through */
case 61: *frm = RLCMAC_HDR_TYPE_2; *mcs = 5; break;
case 78: /* fall through */
case 79: *frm = RLCMAC_HDR_TYPE_2; *mcs = 6; break;
case 118: /* fall through */
case 119: *frm = RLCMAC_HDR_TYPE_1; *mcs = 7; break;
case 142: /* fall through */
case 143: *frm = RLCMAC_HDR_TYPE_1; *mcs = 8; break;
case 154: /* fall through */
case 155: *frm = RLCMAC_HDR_TYPE_1; *mcs = 9; break;
default: *frm = RLCMAC_CS1; *mcs = 0; break; /* TODO: report error instead */
}
}
static void
handle_rlcmac(guint32 frame_nr, tvbuff_t *payload_tvb, packet_info *pinfo, proto_tree *tree)
{
int sub_handle;
RlcMacPrivateData_t rlcmac_data = {0};
tvbuff_t *data_tvb;
guint data_block_bits, data_block_offsets[2];
guint num_calls;
gboolean is_uplink;
if (pinfo->p2p_dir == P2P_DIR_SENT) {
is_uplink = 1;
sub_handle = GSMTAP_SUB_UM_RLC_MAC_UL;
} else {
is_uplink = 0;
sub_handle = GSMTAP_SUB_UM_RLC_MAC_DL;
}
rlcmac_data.magic = GSM_RLC_MAC_MAGIC_NUMBER;
rlcmac_data.frame_number = frame_nr;
tvb_len_get_mcs_and_fmt(tvb_reported_length(payload_tvb), is_uplink,
(guint *) &rlcmac_data.block_format,
(guint8 *) &rlcmac_data.mcs);
switch (rlcmac_data.block_format) {
case RLCMAC_HDR_TYPE_1:
case RLCMAC_HDR_TYPE_2:
case RLCMAC_HDR_TYPE_3:
/* First call of RLC/MAC dissector for header */
call_dissector_with_data(sub_handles[sub_handle], payload_tvb,
pinfo, tree, (void *) &rlcmac_data);
/* now determine how to proceed for data */
setup_rlc_mac_priv(&rlcmac_data, is_uplink,
&num_calls, &data_block_bits, data_block_offsets);
/* and call dissector one or two time for the data blocks */
if (num_calls >= 2) {
rlcmac_data.flags = GSM_RLC_MAC_EGPRS_BLOCK1;
data_tvb = get_egprs_data_block(payload_tvb, data_block_offsets[0],
data_block_bits, pinfo);
call_dissector_with_data(sub_handles[sub_handle], data_tvb, pinfo, tree,
(void *) &rlcmac_data);
}
if (num_calls == 3) {
rlcmac_data.flags = GSM_RLC_MAC_EGPRS_BLOCK2;
data_tvb = get_egprs_data_block(payload_tvb, data_block_offsets[1],
data_block_bits, pinfo);
call_dissector_with_data(sub_handles[sub_handle], data_tvb, pinfo, tree,
(void *) &rlcmac_data);
}
break;
default:
/* regular GPRS CS doesn't need any
* shifting/re-alignment or even separate calls for
* header and data blocks. We simply call the dissector
* as-is */
call_dissector_with_data(sub_handles[sub_handle], payload_tvb, pinfo, tree,
(void *) &rlcmac_data);
}
}
/* dissect a GSMTAP header and hand payload off to respective dissector */
static int
dissect_gsmtap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
int sub_handle, sub_handle_idx = 0, len, offset = 0;
proto_item *ti;
proto_tree *gsmtap_tree = NULL;
tvbuff_t *payload_tvb, *l1h_tvb = NULL;
guint8 hdr_len, type, sub_type, timeslot, subslot;
guint16 arfcn;
guint32 frame_nr;
len = tvb_reported_length(tvb);
hdr_len = tvb_get_guint8(tvb, offset + 1) <<2;
type = tvb_get_guint8(tvb, offset + 2);
timeslot = tvb_get_guint8(tvb, offset + 3);
arfcn = tvb_get_ntohs(tvb, offset + 4);
frame_nr = tvb_get_ntohl(tvb, offset + 8);
sub_type = tvb_get_guint8(tvb, offset + 12);
subslot = tvb_get_guint8(tvb, offset + 14);
/* In case of a SACCH, there is a two-byte L1 header in front
* of the packet (see TS 04.04) */
if (type == GSMTAP_TYPE_UM &&
sub_type & GSMTAP_CHANNEL_ACCH) {
l1h_tvb = tvb_new_subset_length(tvb, hdr_len, 2);
payload_tvb = tvb_new_subset_length(tvb, hdr_len+2, len-(hdr_len+2));
} else {
payload_tvb = tvb_new_subset_length(tvb, hdr_len, len-hdr_len);
}
/* We don't want any UDP related info left in the INFO field, as the
* gsm_a_dtap dissector will not clear but only append */
col_clear(pinfo->cinfo, COL_INFO);
col_set_str(pinfo->cinfo, COL_PROTOCOL, "GSMTAP");
/* Some GSMTAP types are completely unrelated to the Um air interface */
if (dissector_try_uint(gsmtap_dissector_table, type, payload_tvb,
pinfo, tree))
return tvb_captured_length(tvb);
if (arfcn & GSMTAP_ARFCN_F_UPLINK) {
col_set_str(pinfo->cinfo, COL_RES_NET_SRC, "MS");
col_set_str(pinfo->cinfo, COL_RES_NET_DST, "BTS");
/* p2p_dir is used by the LAPDm dissector */
pinfo->p2p_dir = P2P_DIR_SENT;
} else {
col_set_str(pinfo->cinfo, COL_RES_NET_SRC, "BTS");
switch (sub_type & ~GSMTAP_CHANNEL_ACCH) {
case GSMTAP_CHANNEL_BCCH:
case GSMTAP_CHANNEL_CCCH:
case GSMTAP_CHANNEL_PCH:
case GSMTAP_CHANNEL_AGCH:
case GSMTAP_CHANNEL_CBCH51:
case GSMTAP_CHANNEL_CBCH52:
case GSMTAP_CHANNEL_PTCCH:
col_set_str(pinfo->cinfo, COL_RES_NET_DST, "Broadcast");
break;
default:
col_set_str(pinfo->cinfo, COL_RES_NET_DST, "MS");
break;
}
/* p2p_dir is used by the LAPDm dissector */
pinfo->p2p_dir = P2P_DIR_RECV;
}
/* Try to build an identifier of different 'streams' */
/* (AFCN _cant_ be used because of hopping */
conversation_set_elements_by_id(pinfo, CONVERSATION_GSMTAP, (timeslot << 3) | subslot);
if (tree) {
guint8 channel;
const char *channel_str;
channel = tvb_get_guint8(tvb, offset+12);
if (type == GSMTAP_TYPE_TETRA_I1)
channel_str = val_to_str(channel, gsmtap_tetra_channels, "Unknown: %d");
else if (type == GSMTAP_TYPE_GMR1_UM)
channel_str = val_to_str(channel, gsmtap_gmr1_channels, "Unknown: %d");
else
channel_str = val_to_str(channel, gsmtap_channels, "Unknown: %d");
ti = proto_tree_add_protocol_format(tree, proto_gsmtap, tvb, 0, hdr_len,
"GSM TAP Header, ARFCN: %u (%s), TS: %u, Channel: %s (%u)",
arfcn & GSMTAP_ARFCN_MASK,
arfcn & GSMTAP_ARFCN_F_UPLINK ? "Uplink" : "Downlink",
tvb_get_guint8(tvb, offset+3),
channel_str,
tvb_get_guint8(tvb, offset+14));
gsmtap_tree = proto_item_add_subtree(ti, ett_gsmtap);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_version,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_uint(gsmtap_tree, hf_gsmtap_hdrlen,
tvb, offset+1, 1, hdr_len);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_type,
tvb, offset+2, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_timeslot,
tvb, offset+3, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_arfcn,
tvb, offset+4, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_uplink,
tvb, offset+4, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_pcs,
tvb, offset+4, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_signal_dbm,
tvb, offset+6, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_snr_db,
tvb, offset+7, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_frame_nr,
tvb, offset+8, 4, ENC_BIG_ENDIAN);
if (type == GSMTAP_TYPE_UM_BURST)
proto_tree_add_item(gsmtap_tree, hf_gsmtap_burst_type,
tvb, offset+12, 1, ENC_BIG_ENDIAN);
else if (type == GSMTAP_TYPE_UM)
proto_tree_add_item(gsmtap_tree, hf_gsmtap_channel_type,
tvb, offset+12, 1, ENC_BIG_ENDIAN);
else if (type == GSMTAP_TYPE_TETRA_I1)
proto_tree_add_item(gsmtap_tree, hf_gsmtap_tetra_channel_type,
tvb, offset+12, 1, ENC_BIG_ENDIAN);
else if (type == GSMTAP_TYPE_WMX_BURST)
proto_tree_add_item(gsmtap_tree, hf_gsmtap_burst_type,
tvb, offset+12, 1, ENC_BIG_ENDIAN);
else if (type == GSMTAP_TYPE_GMR1_UM)
proto_tree_add_item(gsmtap_tree, hf_gsmtap_gmr1_channel_type,
tvb, offset+12, 1, ENC_BIG_ENDIAN);
else if (type == GSMTAP_TYPE_UMTS_RRC)
proto_tree_add_item(gsmtap_tree, hf_gsmtap_rrc_sub_type,
tvb, offset+12, 1, ENC_BIG_ENDIAN);
else if (type == GSMTAP_TYPE_E1T1)
proto_tree_add_item(gsmtap_tree, hf_gsmtap_e1t1_sub_type,
tvb, offset+12, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_antenna,
tvb, offset+13, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(gsmtap_tree, hf_gsmtap_subslot,
tvb, offset+14, 1, ENC_BIG_ENDIAN);
}
switch (type) {
case GSMTAP_TYPE_UMTS_RRC:
sub_handle = GSMTAP_SUB_UMTS_RRC;
sub_handle_idx = sub_type;
if (sub_handle_idx >= GSMTAP_RRC_SUB_MAX) {
sub_handle = GSMTAP_SUB_DATA;
}
/* make entry in the Protocol column on summary display.
* Normally, the RRC dissector would be doing this, but
* we are bypassing dissect_rrc() and directly call a
* sub-dissector */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "RRC");
break;
case GSMTAP_TYPE_LTE_RRC:
sub_handle = GSMTAP_SUB_LTE_RRC;
sub_handle_idx = sub_type;
if (sub_handle_idx >= GSMTAP_LTE_RRC_SUB_MAX) {
sub_handle = GSMTAP_SUB_DATA;
}
/*Directly call the respective lte rrc message dissector */
break;
case GSMTAP_TYPE_LTE_NAS:
sub_handle = GSMTAP_SUB_LTE_NAS;
sub_handle_idx = sub_type;
if (sub_handle_idx >= GSMTAP_LTE_NAS_SUB_MAX) {
sub_handle = GSMTAP_SUB_DATA;
}
break;
case GSMTAP_TYPE_UM:
if (l1h_tvb)
dissect_sacch_l1h(l1h_tvb, tree);
switch (sub_type & ~GSMTAP_CHANNEL_ACCH) {
case GSMTAP_CHANNEL_BCCH:
case GSMTAP_CHANNEL_CCCH:
case GSMTAP_CHANNEL_PCH:
case GSMTAP_CHANNEL_AGCH:
/* FIXME: we might want to skip idle frames */
sub_handle = GSMTAP_SUB_UM;
break;
case GSMTAP_CHANNEL_SDCCH:
case GSMTAP_CHANNEL_SDCCH4:
case GSMTAP_CHANNEL_SDCCH8:
case GSMTAP_CHANNEL_TCH_F:
case GSMTAP_CHANNEL_TCH_H:
handle_lapdm(sub_type, payload_tvb, pinfo, tree);
return tvb_captured_length(tvb);
case GSMTAP_CHANNEL_PACCH:
if (pinfo->p2p_dir == P2P_DIR_SENT) {
sub_handle = GSMTAP_SUB_UM_RLC_MAC_UL;
}
else
{
sub_handle = GSMTAP_SUB_UM_RLC_MAC_DL;
}
break;
case GSMTAP_CHANNEL_PDTCH:
handle_rlcmac(frame_nr, payload_tvb, pinfo, tree);
return tvb_captured_length(tvb);
/* See 3GPP TS 45.003, section 5.2 "Packet control channels" */
case GSMTAP_CHANNEL_PTCCH:
/* PTCCH/D carries Timing Advance updates encoded with CS-1 */
if (pinfo->p2p_dir == P2P_DIR_RECV) {
dissect_ptcch_dl(payload_tvb, pinfo, tree);
return tvb_captured_length(tvb);
}
/* PTCCH/U carries Access Bursts for Timing Advance estimation */
sub_handle = GSMTAP_SUB_DATA;
break;
case GSMTAP_CHANNEL_CBCH51:
case GSMTAP_CHANNEL_CBCH52:
sub_handle = GSMTAP_SUB_CBCH;
break;
case GSMTAP_CHANNEL_VOICE_F:
case GSMTAP_CHANNEL_VOICE_H:
dissect_um_voice(payload_tvb, pinfo, tree);
return tvb_captured_length(tvb);
case GSMTAP_CHANNEL_RACH:
default:
sub_handle = GSMTAP_SUB_DATA;
break;
}
break;
case GSMTAP_TYPE_ABIS:
sub_handle = GSMTAP_SUB_ABIS;
break;
case GSMTAP_TYPE_GB_LLC:
sub_handle = GSMTAP_SUB_LLC;
break;
case GSMTAP_TYPE_GB_SNDCP:
sub_handle = GSMTAP_SUB_SNDCP;
break;
case GSMTAP_TYPE_TETRA_I1:
handle_tetra(tvb_get_guint8(tvb, offset+12), payload_tvb, pinfo, tree);
return tvb_captured_length(tvb);
case GSMTAP_TYPE_WMX_BURST:
switch (sub_type) {
case GSMTAP_BURST_CDMA_CODE:
sub_handle = GSMTAP_SUB_CDMA_CODE;
break;
case GSMTAP_BURST_FCH:
sub_handle = GSMTAP_SUB_FCH;
break;
case GSMTAP_BURST_FFB:
sub_handle = GSMTAP_SUB_FFB;
break;
case GSMTAP_BURST_PDU:
sub_handle = GSMTAP_SUB_PDU;
break;
case GSMTAP_BURST_HACK:
sub_handle = GSMTAP_SUB_HACK;
break;
case GSMTAP_BURST_PHY_ATTRIBUTES:
sub_handle = GSMTAP_SUB_PHY_ATTRIBUTES;
break;
default:
sub_handle = GSMTAP_SUB_DATA;
break;
}
break;
case GSMTAP_TYPE_GMR1_UM:
switch (sub_type) {
case GSMTAP_GMR1_BCCH:
sub_handle = GSMTAP_SUB_GMR1_BCCH;
break;
case GSMTAP_GMR1_CCCH:
case GSMTAP_GMR1_AGCH:
case GSMTAP_GMR1_PCH:
sub_handle = GSMTAP_SUB_GMR1_CCCH;
break;
case GSMTAP_GMR1_SDCCH:
case GSMTAP_GMR1_TCH3 | GSMTAP_GMR1_FACCH:
case GSMTAP_GMR1_TCH6 | GSMTAP_GMR1_FACCH:
case GSMTAP_GMR1_TCH9 | GSMTAP_GMR1_FACCH:
sub_handle = GSMTAP_SUB_GMR1_LAPSAT;
break;
case GSMTAP_GMR1_RACH:
sub_handle = GSMTAP_SUB_GMR1_RACH;
break;
default:
sub_handle = GSMTAP_SUB_DATA;
break;
}
break;
case GSMTAP_TYPE_E1T1:
switch (sub_type) {
case GSMTAP_E1T1_LAPD:
sub_handle = GSMTAP_SUB_LAPD;
if (sub_handles[sub_handle]) {
struct isdn_phdr isdn;
isdn.uton = pinfo->p2p_dir == P2P_DIR_SENT ? 1 : 0;
isdn.channel = 0;
call_dissector_with_data(sub_handles[sub_handle], payload_tvb, pinfo, tree, &isdn);
}
return tvb_captured_length(tvb);
case GSMTAP_E1T1_FR:
sub_handle = GSMTAP_SUB_FR;
break;
case GSMTAP_E1T1_V5EF:
sub_handle = GSMTAP_SUB_V5EF;
if (sub_handles[sub_handle]) {
struct isdn_phdr isdn;
isdn.uton = pinfo->p2p_dir == P2P_DIR_SENT ? 1 : 0;
isdn.channel = 0;
call_dissector_with_data(sub_handles[sub_handle], payload_tvb, pinfo, tree, &isdn);
}
return tvb_captured_length(tvb);
default:
sub_handle = GSMTAP_SUB_DATA;
break;
}
break;
case GSMTAP_TYPE_UM_BURST:
default:
sub_handle = GSMTAP_SUB_DATA;
break;
}
switch (sub_handle){
case GSMTAP_SUB_UMTS_RRC:
call_dissector(rrc_sub_handles[sub_handle_idx], payload_tvb,
pinfo, tree);
break;
case GSMTAP_SUB_LTE_RRC:
call_dissector(lte_rrc_sub_handles[sub_handle_idx], payload_tvb,
pinfo, tree);
break;
case GSMTAP_SUB_LTE_NAS:
call_dissector(lte_nas_sub_handles[sub_handle_idx], payload_tvb,
pinfo, tree);
break;
default:
if (sub_handles[sub_handle] != NULL)
call_dissector(sub_handles[sub_handle], payload_tvb, pinfo, tree);
break;
}
/* TODO: warn user that the WiMAX plugin must be enabled for some types */
return tvb_captured_length(tvb);
}
static const true_false_string sacch_l1h_fpc_mode_vals = {
"In use",
"Not in use"
};
void
proto_register_gsmtap(void)
{
static hf_register_info hf[] = {
{ &hf_gsmtap_version, { "Version", "gsmtap.version",
FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
{ &hf_gsmtap_hdrlen, { "Header Length", "gsmtap.hdr_len",
FT_UINT8, BASE_DEC|BASE_UNIT_STRING, &units_byte_bytes, 0, NULL, HFILL } },
{ &hf_gsmtap_type, { "Payload Type", "gsmtap.type",
FT_UINT8, BASE_DEC, VALS(gsmtap_types), 0, NULL, HFILL } },
{ &hf_gsmtap_timeslot, { "Time Slot", "gsmtap.ts",
FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
{ &hf_gsmtap_arfcn, { "ARFCN", "gsmtap.arfcn",
FT_UINT16, BASE_DEC, NULL, GSMTAP_ARFCN_MASK, NULL, HFILL } },
{ &hf_gsmtap_uplink, { "Uplink", "gsmtap.uplink",
FT_UINT16, BASE_DEC, NULL, GSMTAP_ARFCN_F_UPLINK, NULL, HFILL } },
{ &hf_gsmtap_pcs, { "PCS band indicator", "gsmtap.pcs_band",
FT_UINT16, BASE_DEC, NULL, GSMTAP_ARFCN_F_PCS, NULL, HFILL } },
{ &hf_gsmtap_signal_dbm, { "Signal Level", "gsmtap.signal_dbm",
FT_INT8, BASE_DEC | BASE_UNIT_STRING, &units_dbm, 0, NULL, HFILL } },
{ &hf_gsmtap_snr_db, { "Signal/Noise Ratio", "gsmtap.snr_db",
FT_INT8, BASE_DEC | BASE_UNIT_STRING, &units_decibels, 0, NULL, HFILL } },
{ &hf_gsmtap_frame_nr, { "GSM Frame Number", "gsmtap.frame_nr",
FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } },
{ &hf_gsmtap_burst_type, { "Burst Type", "gsmtap.burst_type",
FT_UINT8, BASE_DEC, VALS(gsmtap_bursts), 0, NULL, HFILL }},
{ &hf_gsmtap_channel_type, { "Channel Type", "gsmtap.chan_type",
FT_UINT8, BASE_DEC, VALS(gsmtap_channels), 0, NULL, HFILL }},
{ &hf_gsmtap_tetra_channel_type, { "Channel Type", "gsmtap.tetra_chan_type",
FT_UINT8, BASE_DEC, VALS(gsmtap_tetra_channels), 0, NULL, HFILL }},
{ &hf_gsmtap_gmr1_channel_type, { "Channel Type", "gsmtap.gmr1_chan_type",
FT_UINT8, BASE_DEC, VALS(gsmtap_gmr1_channels), 0, NULL, HFILL }},
{ &hf_gsmtap_rrc_sub_type, { "Message Type", "gsmtap.rrc_sub_type",
FT_UINT8, BASE_DEC, VALS(rrc_sub_types), 0, NULL, HFILL }},
{ &hf_gsmtap_e1t1_sub_type, { "Channel Type", "gsmtap.e1t1_sub_type",
FT_UINT8, BASE_DEC, VALS(gsmtap_um_e1t1_types), 0, NULL, HFILL }},
{ &hf_gsmtap_antenna, { "Antenna Number", "gsmtap.antenna",
FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
{ &hf_gsmtap_subslot, { "Sub-Slot", "gsmtap.sub_slot",
FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
{ &hf_sacch_l1h_power_lev, { "MS power level", "gsmtap.sacch_l1.power_lev",
FT_UINT8, BASE_DEC, NULL, 0x1f, NULL, HFILL } },
{ &hf_sacch_l1h_fpc, { "FPC (Fast Power Control)", "gsmtap.sacch_l1.fpc",
FT_BOOLEAN, 8, TFS(&sacch_l1h_fpc_mode_vals), 0x20, NULL, HFILL } },
{ &hf_sacch_l1h_sro_srr, { "SRO/SRR (SACCH Repetition)", "gsmtap.sacch_l1.sro_srr",
FT_BOOLEAN, 8, TFS(&tfs_required_not_required), 0x40, NULL, HFILL } },
{ &hf_sacch_l1h_ta, { "Actual Timing Advance", "gsmtap.sacch_l1.ta",
FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
{ &hf_um_voice_type, { "GSM Um Voice Type", "gsmtap.um_voice_type",
FT_UINT8, BASE_DEC, VALS(gsmtap_um_voice_types), 0, NULL, HFILL } },
/* PTCCH (Packet Timing Advance Control Channel) on Downlink */
{ &hf_ptcch_spare, { "Spare Bit", "gsmtap.ptcch.spare",
FT_UINT8, BASE_DEC, NULL, 0x80, NULL, HFILL } },
{ &hf_ptcch_ta_idx, { "Timing Advance Index", "gsmtap.ptcch.ta_idx",
FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },
{ &hf_ptcch_ta_val, { "Timing Advance Value", "gsmtap.ptcch.ta_val",
FT_UINT8, BASE_DEC, NULL, 0x7f, NULL, HFILL } },
{ &hf_ptcch_padding, { "Spare Padding", "gsmtap.ptcch.padding",
FT_BYTES, SEP_SPACE, NULL, 0, NULL, HFILL } },
};
static gint *ett[] = {
&ett_gsmtap
};
proto_gsmtap = proto_register_protocol("GSM Radiotap", "GSMTAP", "gsmtap");
proto_register_field_array(proto_gsmtap, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
gsmtap_dissector_table = register_dissector_table("gsmtap.type",
"GSMTAP type", proto_gsmtap, FT_UINT8, BASE_HEX);
}
void
proto_reg_handoff_gsmtap(void)
{
dissector_handle_t gsmtap_handle;
/* TODO: some dissectors may be NULL if not loaded */
sub_handles[GSMTAP_SUB_DATA] = find_dissector("data");
sub_handles[GSMTAP_SUB_UM] = find_dissector_add_dependency("gsm_a_ccch", proto_gsmtap);
sub_handles[GSMTAP_SUB_UM_LAPDM] = find_dissector_add_dependency("lapdm", proto_gsmtap);
sub_handles[GSMTAP_SUB_UM_RLC_MAC_UL] = find_dissector_add_dependency("gsm_rlcmac_ul", proto_gsmtap);
sub_handles[GSMTAP_SUB_UM_RLC_MAC_DL] = find_dissector_add_dependency("gsm_rlcmac_dl", proto_gsmtap);
sub_handles[GSMTAP_SUB_LLC] = find_dissector_add_dependency("llcgprs", proto_gsmtap);
sub_handles[GSMTAP_SUB_SNDCP] = find_dissector_add_dependency("sndcp", proto_gsmtap);
sub_handles[GSMTAP_SUB_ABIS] = find_dissector_add_dependency("gsm_a_dtap", proto_gsmtap);
sub_handles[GSMTAP_SUB_CDMA_CODE] = find_dissector_add_dependency("wimax_cdma_code_burst_handler", proto_gsmtap);
sub_handles[GSMTAP_SUB_FCH] = find_dissector_add_dependency("wimax_fch_burst_handler", proto_gsmtap);
sub_handles[GSMTAP_SUB_FFB] = find_dissector_add_dependency("wimax_ffb_burst_handler", proto_gsmtap);
sub_handles[GSMTAP_SUB_PDU] = find_dissector_add_dependency("wimax_pdu_burst_handler", proto_gsmtap);
sub_handles[GSMTAP_SUB_HACK] = find_dissector_add_dependency("wimax_hack_burst_handler", proto_gsmtap);
sub_handles[GSMTAP_SUB_PHY_ATTRIBUTES] = find_dissector_add_dependency("wimax_phy_attributes_burst_handler", proto_gsmtap);
sub_handles[GSMTAP_SUB_CBCH] = find_dissector_add_dependency("gsm_cbch", proto_gsmtap);
sub_handles[GSMTAP_SUB_GMR1_BCCH] = find_dissector_add_dependency("gmr1_bcch", proto_gsmtap);
sub_handles[GSMTAP_SUB_GMR1_CCCH] = find_dissector_add_dependency("gmr1_ccch", proto_gsmtap);
sub_handles[GSMTAP_SUB_GMR1_LAPSAT] = find_dissector_add_dependency("lapsat", proto_gsmtap);
sub_handles[GSMTAP_SUB_GMR1_RACH] = find_dissector_add_dependency("gmr1_rach", proto_gsmtap);
sub_handles[GSMTAP_SUB_UMTS_RRC] = find_dissector_add_dependency("rrc", proto_gsmtap);
sub_handles[GSMTAP_SUB_LAPD] = find_dissector_add_dependency("lapd-phdr", proto_gsmtap);
sub_handles[GSMTAP_SUB_FR] = find_dissector_add_dependency("fr", proto_gsmtap);
sub_handles[GSMTAP_SUB_V5EF] = find_dissector_add_dependency("v5ef", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_DL_DCCH_Message] = find_dissector_add_dependency("rrc.dl.dcch", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_UL_DCCH_Message] = find_dissector_add_dependency("rrc.ul.dcch", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_DL_CCCH_Message] = find_dissector_add_dependency("rrc.dl.ccch", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_UL_CCCH_Message] = find_dissector_add_dependency("rrc.ul.ccch", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_PCCH_Message] = find_dissector_add_dependency("rrc.pcch", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_DL_SHCCH_Message] = find_dissector_add_dependency("rrc.dl.shcch", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_UL_SHCCH_Message] = find_dissector_add_dependency("rrc.ul.shcch", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_BCCH_FACH_Message] = find_dissector_add_dependency("rrc.bcch.fach", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_BCCH_BCH_Message] = find_dissector_add_dependency("rrc.bcch.bch", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_MCCH_Message] = find_dissector_add_dependency("rrc.mcch", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_MSCH_Message] = find_dissector_add_dependency("rrc.msch", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_HandoverToUTRANCommand] = find_dissector_add_dependency("rrc.irat.ho_to_utran_cmd", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_InterRATHandoverInfo] = find_dissector_add_dependency("rrc.irat.irat_ho_info", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SystemInformation_BCH] = find_dissector_add_dependency("rrc.sysinfo", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_System_Information_Container] = find_dissector_add_dependency("rrc.sysinfo.cont", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_UE_RadioAccessCapabilityInfo] = find_dissector_add_dependency("rrc.ue_radio_access_cap_info", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_MasterInformationBlock] = find_dissector_add_dependency("rrc.si.mib", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType1] = find_dissector_add_dependency("rrc.si.sib1", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType2] = find_dissector_add_dependency("rrc.si.sib2", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType3] = find_dissector_add_dependency("rrc.si.sib3", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType4] = find_dissector_add_dependency("rrc.si.sib4", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType5] = find_dissector_add_dependency("rrc.si.sib5", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType5bis] = find_dissector_add_dependency("rrc.si.sib5bis", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType6] = find_dissector_add_dependency("rrc.si.sib6", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType7] = find_dissector_add_dependency("rrc.si.sib7", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType8] = find_dissector_add_dependency("rrc.si.sib8", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType9] = find_dissector_add_dependency("rrc.si.sib9", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType10] = find_dissector_add_dependency("rrc.si.sib10", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType11] = find_dissector_add_dependency("rrc.si.sib11", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType11bis] = find_dissector_add_dependency("rrc.si.sib11bis", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType12] = find_dissector_add_dependency("rrc.si.sib12", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType13] = find_dissector_add_dependency("rrc.si.sib13", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType13_1] = find_dissector_add_dependency("rrc.si.sib13-1", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType13_2] = find_dissector_add_dependency("rrc.si.sib13-2", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType13_3] = find_dissector_add_dependency("rrc.si.sib13-3", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType13_4] = find_dissector_add_dependency("rrc.si.sib13-4", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType14] = find_dissector_add_dependency("rrc.si.sib14", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15] = find_dissector_add_dependency("rrc.si.sib15", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15bis] = find_dissector_add_dependency("rrc.si.sib15bis", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_1] = find_dissector_add_dependency("rrc.si.sib15-1", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_1bis] = find_dissector_add_dependency("rrc.si.sib15-1bis", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_2] = find_dissector_add_dependency("rrc.si.sib15-2", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_2bis] = find_dissector_add_dependency("rrc.si.sib15-2bis", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_2ter] = find_dissector_add_dependency("rrc.si.sib15-2ter", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_3] = find_dissector_add_dependency("rrc.si.sib15-3", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_3bis] = find_dissector_add_dependency("rrc.si.sib15-3bis", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_4] = find_dissector_add_dependency("rrc.si.sib15-4", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_5] = find_dissector_add_dependency("rrc.si.sib15-5", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_6] = find_dissector_add_dependency("rrc.si.sib15-6", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_7] = find_dissector_add_dependency("rrc.si.sib15-7", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType15_8] = find_dissector_add_dependency("rrc.si.sib15-8", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType16] = find_dissector_add_dependency("rrc.si.sib16", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType17] = find_dissector_add_dependency("rrc.si.sib17", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType18] = find_dissector_add_dependency("rrc.si.sib18", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType19] = find_dissector_add_dependency("rrc.si.sib19", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType20] = find_dissector_add_dependency("rrc.si.sib20", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType21] = find_dissector_add_dependency("rrc.si.sib21", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoType22] = find_dissector_add_dependency("rrc.si.sib22", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoTypeSB1] = find_dissector_add_dependency("rrc.si.sb1", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_SysInfoTypeSB2] = find_dissector_add_dependency("rrc.si.sb2", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_ToTargetRNC_Container] = find_dissector_add_dependency("rrc.s_to_trnc_cont", proto_gsmtap);
rrc_sub_handles[GSMTAP_RRC_SUB_TargetRNC_ToSourceRNC_Container] = find_dissector_add_dependency("rrc.t_to_srnc_cont", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_DL_CCCH_Message] = find_dissector_add_dependency("lte_rrc.dl_ccch", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_DL_DCCH_Message] = find_dissector_add_dependency("lte_rrc.dl_dcch", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_UL_CCCH_Message] = find_dissector_add_dependency("lte_rrc.ul_ccch", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_UL_DCCH_Message] = find_dissector_add_dependency("lte_rrc.ul_dcch", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_BCCH_BCH_Message] = find_dissector_add_dependency("lte_rrc.bcch_bch", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_BCCH_DL_SCH_Message] = find_dissector_add_dependency("lte_rrc.bcch_dl_sch", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_PCCH_Message] = find_dissector_add_dependency("lte_rrc.pcch", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_MCCH_Message] = find_dissector_add_dependency("lte_rrc.mcch", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_BCCH_BCH_Message_MBMS] = find_dissector_add_dependency("lte_rrc.bcch_bch.mbms", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_BCCH_DL_SCH_Message_BR] = find_dissector_add_dependency("lte_rrc.bcch_dl_sch_br", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_BCCH_DL_SCH_Message_MBMS] = find_dissector_add_dependency("lte_rrc.bcch_dl_sch.mbms", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_SC_MCCH_Message] = find_dissector_add_dependency("lte_rrc.sc_mcch", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_SBCCH_SL_BCH_Message] = find_dissector_add_dependency("lte_rrc.sbcch_sl_bch", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_SBCCH_SL_BCH_Message_V2X] = find_dissector_add_dependency("lte_rrc.sbcch_sl_bch.v2x", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_DL_CCCH_Message_NB] = find_dissector_add_dependency("lte_rrc.dl_ccch.nb", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_DL_DCCH_Message_NB] = find_dissector_add_dependency("lte_rrc.dl_dcch.nb", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_UL_CCCH_Message_NB] = find_dissector_add_dependency("lte_rrc.ul_ccch.nb", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_UL_DCCH_Message_NB] = find_dissector_add_dependency("lte_rrc.ul_dcch.nb", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_BCCH_BCH_Message_NB] = find_dissector_add_dependency("lte_rrc.bcch_bch.nb", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_BCCH_BCH_Message_TDD_NB] = find_dissector_add_dependency("lte_rrc.bcch_bch.nb.tdd", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_BCCH_DL_SCH_Message_NB] = find_dissector_add_dependency("lte_rrc.bcch_dl_sch.nb", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_PCCH_Message_NB] = find_dissector_add_dependency("lte_rrc.pcch.nb", proto_gsmtap);
lte_rrc_sub_handles[GSMTAP_LTE_RRC_SUB_SC_MCCH_Message_NB] = find_dissector_add_dependency("lte_rrc.sc_mcch.nb", proto_gsmtap);
lte_nas_sub_handles[GSMTAP_LTE_NAS_PLAIN] = find_dissector_add_dependency("nas-eps_plain", proto_gsmtap);
lte_nas_sub_handles[GSMTAP_LTE_NAS_SEC_HEADER] = find_dissector_add_dependency("nas-eps", proto_gsmtap);
gsmtap_handle = create_dissector_handle(dissect_gsmtap, proto_gsmtap);
dissector_add_uint_with_preference("udp.port", GSMTAP_UDP_PORT, gsmtap_handle);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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