forked from osmocom/wireshark
1749 lines
70 KiB
C
1749 lines
70 KiB
C
/* Routines for 5G/NR MAC disassembly
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*
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* Based on packet-mac-lte.c
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <stdio.h>
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#include <epan/packet.h>
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#include <epan/exceptions.h>
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#include <epan/expert.h>
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#include <epan/proto_data.h>
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#include <epan/tfs.h>
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#include "packet-mac-nr.h"
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void proto_register_mac_nr(void);
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void proto_reg_handoff_mac_nr(void);
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/* Described in:
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* 3GPP TS 38.321 NR; Medium Access Control (MAC) protocol specification v15.0.0
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*/
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/* Initialize the protocol and registered fields. */
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int proto_mac_nr = -1;
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/* Decoding context */
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static int hf_mac_nr_context = -1;
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static int hf_mac_nr_context_radio_type = -1;
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static int hf_mac_nr_context_direction = -1;
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static int hf_mac_nr_context_rnti = -1;
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static int hf_mac_nr_context_rnti_type = -1;
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static int hf_mac_nr_context_ueid = -1;
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static int hf_mac_nr_subheader = -1;
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static int hf_mac_nr_subheader_reserved = -1;
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static int hf_mac_nr_subheader_f = -1;
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static int hf_mac_nr_subheader_length_1_byte = -1;
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static int hf_mac_nr_subheader_length_2_bytes = -1;
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static int hf_mac_nr_ulsch_lcid = -1;
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static int hf_mac_nr_dlsch_lcid = -1;
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static int hf_mac_nr_dlsch_sdu = -1;
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static int hf_mac_nr_ulsch_sdu = -1;
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static int hf_mac_nr_control_crnti = -1;
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static int hf_mac_nr_control_ue_contention_resolution_identity = -1;
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static int hf_mac_nr_control_timing_advance_tagid = -1;
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static int hf_mac_nr_control_timing_advance_command = -1;
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static int hf_mac_nr_control_se_phr_reserved = -1;
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static int hf_mac_nr_control_se_phr_ph = -1;
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static int hf_mac_nr_control_se_phr_pcmax_c = -1;
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static int hf_mac_nr_control_dupl_act_deact_drb7 = -1;
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static int hf_mac_nr_control_dupl_act_deact_drb6 = -1;
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static int hf_mac_nr_control_dupl_act_deact_drb5 = -1;
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static int hf_mac_nr_control_dupl_act_deact_drb4 = -1;
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static int hf_mac_nr_control_dupl_act_deact_drb3 = -1;
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static int hf_mac_nr_control_dupl_act_deact_drb2 = -1;
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static int hf_mac_nr_control_dupl_act_deact_drb1 = -1;
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static int hf_mac_nr_control_dupl_act_deact_reserved = -1;
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static int hf_mac_nr_control_scell_act_deact_cell7 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell6 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell5 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell4 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell3 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell2 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell1 = -1;
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static int hf_mac_nr_control_scell_act_deact_reserved = -1;
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static int hf_mac_nr_control_scell_act_deact_cell15 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell14 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell13 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell12 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell11 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell10 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell9 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell8 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell23 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell22 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell21 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell20 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell19 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell18 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell17 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell16 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell31 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell30 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell29 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell28 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell27 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell26 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell25 = -1;
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static int hf_mac_nr_control_scell_act_deact_cell24 = -1;
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static int hf_mac_nr_control_short_trunc_bsr_lcg_id = -1;
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static int hf_mac_nr_control_short_trunc_bsr_bs = -1;
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static int hf_mac_nr_control_short_bsr_lcg_id = -1;
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static int hf_mac_nr_control_short_bsr_bs = -1;
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static int hf_mac_nr_control_long_trunc_bsr_lcg7 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_lcg6 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_lcg5 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_lcg4 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_lcg3 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_lcg2 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_lcg1 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_lcg0 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_bs_lcg0 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_bs_lcg7 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_bs_lcg6 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_bs_lcg5 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_bs_lcg4 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_bs_lcg3 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_bs_lcg2 = -1;
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static int hf_mac_nr_control_long_trunc_bsr_bs_lcg1 = -1;
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static int hf_mac_nr_rar = -1;
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static int hf_mac_nr_rar_subheader = -1;
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static int hf_mac_nr_rar_e = -1;
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static int hf_mac_nr_rar_t = -1;
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static int hf_mac_nr_rar_reserved = -1;
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static int hf_mac_nr_rar_bi = -1;
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static int hf_mac_nr_rar_rapid = -1;
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static int hf_mac_nr_rar_ta = -1;
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static int hf_mac_nr_rar_grant = -1;
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static int hf_mac_nr_rar_crnti = -1;
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static int hf_mac_nr_padding = -1;
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/* Subtrees. */
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static int ett_mac_nr = -1;
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static int ett_mac_nr_context = -1;
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static int ett_mac_nr_subheader = -1;
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static int ett_mac_nr_rar_subheader = -1;
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static expert_field ei_mac_nr_no_per_frame_data = EI_INIT;
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/* Constants and value strings */
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static const value_string radio_type_vals[] =
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{
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{ FDD_RADIO, "FDD"},
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{ TDD_RADIO, "TDD"},
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{ 0, NULL }
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};
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static const value_string direction_vals[] =
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{
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{ DIRECTION_UPLINK, "Uplink"},
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{ DIRECTION_DOWNLINK, "Downlink"},
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{ 0, NULL }
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};
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static const value_string rnti_type_vals[] =
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{
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{ NO_RNTI, "NO-RNTI"},
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{ P_RNTI, "P-RNTI"},
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{ RA_RNTI, "RA-RNTI"},
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{ C_RNTI, "C-RNTI"},
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{ SI_RNTI, "SI-RNTI"},
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{ CS_RNTI, "CS-RNTI"},
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{ 0, NULL }
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};
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#define DUPLICATION_ACTIVATION_DEACTIVATION_LCID 0x38
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#define SCELL_ACTIVATION_DEACTIVATION_4 0x39
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#define SCELL_ACTIVATION_DEACTIVATION_1 0x3a
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#define LONG_DRX_COMMAND_LCID 0x3b
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#define DRX_COMMAND_LCID 0x3c
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#define TIMING_ADVANCE_COMMAND_LCID 0x3d
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#define UE_CONTENTION_RESOLUTION_IDENTITY_LCID 0x3e
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#define PADDING_LCID 0x3f
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static const value_string dlsch_lcid_vals[] =
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{
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{ 0, "CCCH"},
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{ 1, "1"},
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{ 2, "2"},
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{ 3, "3"},
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{ 4, "4"},
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{ 5, "5"},
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{ 6, "6"},
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{ 7, "7"},
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{ 8, "8"},
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{ 9, "9"},
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{ 10, "10"},
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{ 11, "11"},
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{ 12, "12"},
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{ 13, "13"},
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{ 14, "14"},
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{ 15, "15"},
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{ 16, "16"},
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{ 17, "17"},
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{ 18, "18"},
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{ 19, "19"},
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{ 20, "20"},
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{ 21, "21"},
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{ 22, "22"},
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{ 23, "23"},
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{ 24, "24"},
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{ 25, "25"},
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{ 26, "26"},
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{ 27, "27"},
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{ 28, "28"},
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{ 29, "29"},
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{ 30, "30"},
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{ 31, "31"},
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{ 32, "32"},
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{ DUPLICATION_ACTIVATION_DEACTIVATION_LCID, "Duplication Activation/Deactivation"},
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{ SCELL_ACTIVATION_DEACTIVATION_4, "SCell Activation/Deactivation (4 octet)"},
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{ SCELL_ACTIVATION_DEACTIVATION_1, "SCell Activation/Deactivation (1 octet)"},
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{ LONG_DRX_COMMAND_LCID, "Long DRX Command"},
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{ DRX_COMMAND_LCID, "DRX Command"},
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{ TIMING_ADVANCE_COMMAND_LCID, "Timing Advance Command"},
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{ UE_CONTENTION_RESOLUTION_IDENTITY_LCID, "UE Contention Resolution Identity"},
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{ PADDING_LCID, "Padding"},
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{ 0, NULL }
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};
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static value_string_ext dlsch_lcid_vals_ext = VALUE_STRING_EXT_INIT(dlsch_lcid_vals);
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#define CONFIGURED_GRANT_CONFIGURATION_LCID 0x37
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#define MULTIPLE_ENTRY_PHR_LCID 0x38
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#define SINGLE_ENTRY_PHR_LCID 0x39
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#define C_RNTI_LCID 0x3a
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#define SHORT_TRUNCATED_BSR_LCID 0x3b
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#define LONG_TRUNCATED_BSR_LCID 0x3c
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#define SHORT_BSR_LCID 0x3d
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#define LONG_BSR_LCID 0x3e
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#define PADDING_LCID 0x3f
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static const value_string ulsch_lcid_vals[] =
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{
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{ 0, "CCCH"},
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{ 1, "1"},
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{ 2, "2"},
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{ 3, "3"},
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{ 4, "4"},
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{ 5, "5"},
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{ 6, "6"},
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{ 7, "7"},
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{ 8, "8"},
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{ 9, "9"},
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{ 10, "10"},
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{ 11, "11"},
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{ 12, "12"},
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{ 13, "13"},
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{ 14, "14"},
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{ 15, "15"},
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{ 16, "16"},
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{ 17, "17"},
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{ 18, "18"},
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{ 19, "19"},
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{ 20, "20"},
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{ 21, "21"},
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{ 22, "22"},
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{ 23, "23"},
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{ 24, "24"},
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{ 25, "25"},
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{ 26, "26"},
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{ 27, "27"},
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{ 28, "28"},
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{ 29, "29"},
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{ 30, "30"},
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{ 31, "31"},
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{ 32, "32"},
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{ CONFIGURED_GRANT_CONFIGURATION_LCID, "Configured Grant Confirmation"},
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{ MULTIPLE_ENTRY_PHR_LCID, "Multiple Entry PHR"},
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{ SINGLE_ENTRY_PHR_LCID, "Single Entry PHR"},
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{ C_RNTI_LCID, "C-RNTI"},
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{ SHORT_TRUNCATED_BSR_LCID, "Short Truncated BSR"},
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{ LONG_TRUNCATED_BSR_LCID, "Long Truncated BSR"},
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{ SHORT_BSR_LCID, "Short BSR"},
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{ LONG_BSR_LCID, "Long BSR"},
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{ PADDING_LCID, "Padding"},
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{ 0, NULL }
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};
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static value_string_ext ulsch_lcid_vals_ext = VALUE_STRING_EXT_INIT(ulsch_lcid_vals);
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static const true_false_string rar_ext_vals =
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{
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"Another MAC subPDU follows",
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"Last MAC subPDU"
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};
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static const true_false_string rar_type_vals =
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{
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"RAPID present",
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"Backoff Indicator present"
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};
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static const value_string rar_bi_vals[] =
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{
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{ 0, "5ms"},
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{ 1, "10ms"},
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{ 2, "20ms"},
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{ 3, "30ms"},
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{ 4, "40ms"},
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{ 5, "60ms"},
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{ 6, "80ms"},
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{ 7, "120ms"},
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{ 8, "160ms"},
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{ 9, "240ms"},
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{ 10, "320ms"},
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{ 11, "480ms"},
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{ 12, "960ms"},
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{ 13, "1920ms"},
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{ 14, "Reserved"},
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{ 15, "Reserved"},
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{ 0, NULL }
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};
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static const value_string buffer_size_5bits_vals[] =
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{
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{ 0, "BS = 0"},
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{ 1, "0 < BS <= 10"},
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{ 2, "10 < BS <= 14"},
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{ 3, "14 < BS <= 20"},
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{ 4, "20 < BS <= 28"},
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{ 5, "28 < BS <= 38"},
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{ 6, "38 < BS <= 53"},
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{ 7, "53 < BS <= 74"},
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{ 8, "74 < BS <= 102"},
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{ 9, "102 < BS <= 142"},
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{ 10, "142 < BS <= 198"},
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{ 11, "198 < BS <= 276"},
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{ 12, "276 < BS <= 384"},
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{ 13, "384 < BS <= 535"},
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{ 14, "535 < BS <= 745"},
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{ 15, "745 < BS <= 1038"},
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{ 16, "1038 < BS <= 1446"},
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{ 17, "1446 < BS <= 2014"},
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{ 18, "2014 < BS <= 2806"},
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{ 19, "2806 < BS <= 3909"},
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{ 20, "3909 < BS <= 5446"},
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{ 21, "5446 < BS <= 7587"},
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{ 22, "7587 < BS <= 10570"},
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{ 23, "10570 < BS <= 14726"},
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{ 24, "14726 < BS <= 20516"},
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{ 25, "20516 < BS <= 28581"},
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{ 26, "28581 < BS <= 39818"},
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{ 27, "39818 < BS <= 55474"},
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{ 28, "55474 < BS <= 77284"},
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{ 29, "77284 < BS <= 107669"},
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{ 30, "107669 < BS <= 150000"},
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{ 31, "BS > 150000"},
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{ 0, NULL }
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};
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static value_string_ext buffer_size_5bits_vals_ext = VALUE_STRING_EXT_INIT(buffer_size_5bits_vals);
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static const value_string buffer_size_8bits_vals[] =
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{
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{ 0, "BS = 0"},
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{ 1, "0 < BS <= 10"},
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{ 2, "10 < BS <= 11"},
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{ 3, "11 < BS <= 12"},
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{ 4, "12 < BS <= 13"},
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{ 5, "12 < BS <= 13"}, /* N.B. same as previous index, but wrong in spec! */
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{ 6, "13 < BS <= 14"},
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{ 7, "14 < BS <= 15"},
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{ 8, "15 < BS <= 16"},
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{ 9, "16 < BS <= 17"},
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{ 10, "17 < BS <= 18"},
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{ 11, "18 < BS <= 19"},
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{ 12, "19 < BS <= 20"},
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{ 13, "20 < BS <= 22"},
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{ 14, "22 < BS <= 23"},
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{ 15, "23 < BS <= 25"},
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{ 16, "25 < BS <= 26"},
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{ 17, "26 < BS <= 28"},
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{ 18, "28 < BS <= 30"},
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{ 19, "30 < BS <= 32"},
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{ 20, "32 < BS <= 34"},
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{ 21, "34 < BS <= 36"},
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{ 22, "36 < BS <= 38"},
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{ 23, "38 < BS <= 40"},
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{ 24, "40 < BS <= 43"},
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{ 25, "43 < BS <= 46"},
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{ 26, "46 < BS <= 49"},
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{ 27, "49 < BS <= 52"},
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{ 28, "52 < BS <= 55"},
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{ 29, "52 < BS <= 59"},
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{ 30, "59 < BS <= 62"},
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{ 31, "62 < BS <= 66"},
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{ 32, "66 < BS <= 71"},
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{ 33, "71 < BS <= 75"},
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{ 34, "75 < BS <= 80"},
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{ 35, "80 < BS <= 85"},
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{ 36, "85 < BS <= 91"},
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{ 37, "91 < BS <= 97"},
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{ 38, "97 < BS <= 103"},
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{ 39, "103 < BS <= 110"},
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{ 40, "110 < BS <= 117"},
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{ 41, "117 < BS <= 124"},
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{ 42, "124 < BS <= 132"},
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{ 43, "132 < BS <= 141"},
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{ 44, "141 < BS <= 150"},
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{ 45, "150 < BS <= 160"},
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{ 46, "160 < BS <= 170"},
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{ 47, "170 < BS <= 181"},
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{ 48, "181 < BS <= 193"},
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{ 49, "193 < BS <= 205"},
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{ 50, "205 < BS <= 218"},
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{ 51, "218 < BS <= 233"},
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{ 52, "233 < BS <= 248"},
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{ 53, "248 < BS <= 264"},
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{ 54, "264 < BS <= 281"},
|
|
{ 55, "281 < BS <= 299"},
|
|
{ 56, "299 < BS <= 318"},
|
|
{ 57, "318 < BS <= 339"},
|
|
{ 58, "339 < BS <= 361"},
|
|
{ 59, "361 < BS <= 384"},
|
|
{ 60, "384 < BS <= 409"},
|
|
{ 61, "409 < BS <= 436"},
|
|
{ 62, "436 < BS <= 464"},
|
|
{ 63, "464 < BS <= 494"},
|
|
{ 64, "494 < BS <= 526"},
|
|
{ 65, "526 < BS <= 560"},
|
|
{ 66, "560 < BS <= 597"},
|
|
/* TODO: given the size of this table, and repeated range in V15.0.0 for indices 4,5,
|
|
* will finish entering these when the new version appears */
|
|
{ 255, "BS > 81338368"},
|
|
{ 0, NULL }
|
|
};
|
|
static value_string_ext buffer_size_8bits_vals_ext = VALUE_STRING_EXT_INIT(buffer_size_8bits_vals);
|
|
|
|
|
|
/* Forward declarations */
|
|
static int dissect_mac_nr(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void*);
|
|
|
|
/* Write the given formatted text to:
|
|
- the info column (if pinfo != NULL)
|
|
- 1 or 2 other labels (optional)
|
|
*/
|
|
static void write_pdu_label_and_info(proto_item *ti1, proto_item *ti2,
|
|
packet_info *pinfo, const char *format, ...)
|
|
{
|
|
#define MAX_INFO_BUFFER 256
|
|
static char info_buffer[MAX_INFO_BUFFER];
|
|
va_list ap;
|
|
|
|
if ((ti1 == NULL) && (ti2 == NULL) && (pinfo == NULL)) {
|
|
return;
|
|
}
|
|
|
|
va_start(ap, format);
|
|
g_vsnprintf(info_buffer, MAX_INFO_BUFFER, format, ap);
|
|
va_end(ap);
|
|
|
|
/* Add to indicated places */
|
|
if (pinfo != NULL) {
|
|
col_append_str(pinfo->cinfo, COL_INFO, info_buffer);
|
|
}
|
|
if (ti1 != NULL) {
|
|
proto_item_append_text(ti1, "%s", info_buffer);
|
|
}
|
|
if (ti2 != NULL) {
|
|
proto_item_append_text(ti2, "%s", info_buffer);
|
|
}
|
|
}
|
|
|
|
/* Version of function above, where no g_vsnprintf() call needed */
|
|
static void write_pdu_label_and_info_literal(proto_item *ti1, proto_item *ti2,
|
|
packet_info *pinfo, const char *info_buffer)
|
|
{
|
|
/* Add to indicated places */
|
|
if (pinfo != NULL) {
|
|
col_append_str(pinfo->cinfo, COL_INFO, info_buffer);
|
|
}
|
|
if (ti1 != NULL) {
|
|
proto_item_append_text(ti1, "%s", info_buffer);
|
|
}
|
|
if (ti2 != NULL) {
|
|
proto_item_append_text(ti2, "%s", info_buffer);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
static void dissect_rar(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
|
|
proto_item *pdu_ti _U_, guint32 offset,
|
|
mac_nr_info *p_mac_nr_info _U_)
|
|
{
|
|
write_pdu_label_and_info(pdu_ti, NULL, pinfo,
|
|
"RAR (RA-RNTI=%u, SFN=%-4u, SF=%u) ",
|
|
p_mac_nr_info->rnti, p_mac_nr_info->sysframeNumber, p_mac_nr_info->subframeNumber);
|
|
|
|
/* Create hidden 'virtual root' so can filter on mac-nr.rar */
|
|
proto_item *ti = proto_tree_add_item(tree, hf_mac_nr_rar, tvb, offset, -1, ENC_NA);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
|
|
gboolean E, T;
|
|
|
|
do {
|
|
/* Subheader */
|
|
proto_item *subheader_ti = proto_tree_add_item(tree,
|
|
hf_mac_nr_rar_subheader,
|
|
tvb, offset, 0, ENC_ASCII|ENC_NA);
|
|
proto_tree *rar_subheader_tree = proto_item_add_subtree(subheader_ti, ett_mac_nr_rar_subheader);
|
|
|
|
/* Note extension & T bits */
|
|
proto_tree_add_item_ret_boolean(rar_subheader_tree, hf_mac_nr_rar_e, tvb, offset, 1, ENC_BIG_ENDIAN, &E);
|
|
proto_tree_add_item_ret_boolean(rar_subheader_tree, hf_mac_nr_rar_t, tvb, offset, 1, ENC_BIG_ENDIAN, &T);
|
|
|
|
if (!T) {
|
|
/* BI */
|
|
|
|
/* 2 reserved bits */
|
|
proto_tree_add_item(rar_subheader_tree, hf_mac_nr_rar_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
/* BI */
|
|
guint32 BI;
|
|
proto_tree_add_item_ret_uint(rar_subheader_tree, hf_mac_nr_rar_bi, tvb, offset, 1, ENC_BIG_ENDIAN, &BI);
|
|
offset++;
|
|
|
|
write_pdu_label_and_info(pdu_ti, subheader_ti, pinfo,
|
|
"BI=%u ", BI);
|
|
}
|
|
else {
|
|
/* RAPID */
|
|
guint32 rapid;
|
|
proto_tree_add_item_ret_uint(rar_subheader_tree, hf_mac_nr_rar_rapid, tvb, offset, 1, ENC_BIG_ENDIAN, &rapid);
|
|
offset++;
|
|
if (TRUE) {
|
|
/* SubPDU. Not for SI request - TODO: define RAPID range for SI request in mac_nr_info */
|
|
/* TA (12 bits) */
|
|
guint32 ta;
|
|
proto_tree_add_item_ret_uint(rar_subheader_tree, hf_mac_nr_rar_ta, tvb, offset, 2, ENC_BIG_ENDIAN, &ta);
|
|
offset++;
|
|
|
|
/* Grant (20 bits). TODO: break down! */
|
|
proto_tree_add_item(rar_subheader_tree, hf_mac_nr_rar_grant, tvb, offset, 3, ENC_BIG_ENDIAN);
|
|
offset += 3;
|
|
|
|
/* C-RNTI (2 bytes) */
|
|
guint32 c_rnti;
|
|
proto_tree_add_item_ret_uint(rar_subheader_tree, hf_mac_nr_rar_crnti, tvb, offset, 2, ENC_BIG_ENDIAN, &c_rnti);
|
|
offset += 2;
|
|
|
|
write_pdu_label_and_info(pdu_ti, subheader_ti, pinfo,
|
|
"(RAPID=%u TA=%u C-RNTI=%u) ", rapid, ta, c_rnti);
|
|
}
|
|
else {
|
|
write_pdu_label_and_info(pdu_ti, subheader_ti, pinfo,
|
|
"(RAPID=%u) ", rapid);
|
|
}
|
|
}
|
|
/* Set subheader (+subpdu..) length */
|
|
proto_item_set_end(subheader_ti, tvb, offset);
|
|
|
|
} while (E);
|
|
|
|
/* Any remaining length is padding */
|
|
if (tvb_reported_length_remaining(tvb, offset)) {
|
|
proto_tree_add_item(tree, hf_mac_nr_padding, tvb, offset, -1, ENC_NA);
|
|
}
|
|
}
|
|
|
|
static gboolean is_fixed_sized_lcid(guint8 lcid, guint8 direction)
|
|
{
|
|
if (direction == DIRECTION_UPLINK) {
|
|
switch (lcid) {
|
|
case CONFIGURED_GRANT_CONFIGURATION_LCID:
|
|
case SINGLE_ENTRY_PHR_LCID:
|
|
case C_RNTI_LCID:
|
|
case SHORT_TRUNCATED_BSR_LCID:
|
|
case SHORT_BSR_LCID:
|
|
case PADDING_LCID:
|
|
return TRUE;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
}
|
|
else {
|
|
switch (lcid) {
|
|
case DUPLICATION_ACTIVATION_DEACTIVATION_LCID:
|
|
case SCELL_ACTIVATION_DEACTIVATION_4:
|
|
case SCELL_ACTIVATION_DEACTIVATION_1:
|
|
case LONG_DRX_COMMAND_LCID:
|
|
case DRX_COMMAND_LCID:
|
|
case TIMING_ADVANCE_COMMAND_LCID:
|
|
case UE_CONTENTION_RESOLUTION_IDENTITY_LCID:
|
|
case PADDING_LCID:
|
|
return TRUE;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
static true_false_string subheader_f_vals = {
|
|
"16 bits",
|
|
"8 bits"
|
|
};
|
|
|
|
/* UL-SCH and DL-SCH formats have much in common, so handle them in a common
|
|
function */
|
|
static void dissect_ulsch_or_dlsch(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
|
|
proto_item *pdu_ti _U_, guint32 offset,
|
|
mac_nr_info *p_mac_nr_info,
|
|
proto_tree *context_tree _U_)
|
|
{
|
|
/************************************************************************/
|
|
/* Dissect each sub-pdu. */
|
|
do {
|
|
/* Subheader */
|
|
proto_item *subheader_ti = proto_tree_add_item(tree,
|
|
hf_mac_nr_subheader,
|
|
tvb, offset, 0, ENC_ASCII|ENC_NA);
|
|
proto_tree *subheader_tree = proto_item_add_subtree(subheader_ti, ett_mac_nr_subheader);
|
|
|
|
|
|
gboolean F, fixed_len;
|
|
guint32 SDU_length=0;
|
|
|
|
/* 1st bit is always reserved */
|
|
/* 2nd bit depends upon LCID */
|
|
guint8 lcid = tvb_get_guint8(tvb, offset) & 0x3f;
|
|
fixed_len = is_fixed_sized_lcid(lcid, p_mac_nr_info->direction);
|
|
if (fixed_len) {
|
|
proto_tree_add_bits_item(subheader_tree, hf_mac_nr_subheader_reserved, tvb, offset<<3, 2, ENC_BIG_ENDIAN);
|
|
}
|
|
else {
|
|
proto_tree_add_bits_item(subheader_tree, hf_mac_nr_subheader_reserved, tvb, offset<<3, 1, ENC_BIG_ENDIAN);
|
|
/* Data, so check F bit and length */
|
|
proto_tree_add_item_ret_boolean(subheader_tree, hf_mac_nr_subheader_f, tvb, offset, 1, ENC_BIG_ENDIAN, &F);
|
|
}
|
|
|
|
/* LCID */
|
|
proto_tree_add_uint(subheader_tree,
|
|
(p_mac_nr_info->direction == DIRECTION_UPLINK) ?
|
|
hf_mac_nr_ulsch_lcid : hf_mac_nr_dlsch_lcid,
|
|
tvb, offset, 1, lcid);
|
|
offset++;
|
|
|
|
if (!fixed_len) {
|
|
if (F) {
|
|
/* Long length */
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_subheader_length_2_bytes, tvb, offset, 2, ENC_BIG_ENDIAN, &SDU_length);
|
|
offset += 2;
|
|
}
|
|
else {
|
|
/* Short length */
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_subheader_length_1_byte, tvb, offset, 1, ENC_BIG_ENDIAN, &SDU_length);
|
|
offset++;
|
|
}
|
|
}
|
|
|
|
if (lcid <= 32) {
|
|
|
|
/* Add SDU, for now just as hex data */
|
|
if (p_mac_nr_info->direction == DIRECTION_UPLINK) {
|
|
proto_tree_add_item(subheader_tree, hf_mac_nr_ulsch_sdu,
|
|
tvb, offset, SDU_length, ENC_NA);
|
|
}
|
|
else {
|
|
proto_tree_add_item(subheader_tree, hf_mac_nr_dlsch_sdu,
|
|
tvb, offset, SDU_length, ENC_NA);
|
|
}
|
|
write_pdu_label_and_info(pdu_ti, subheader_ti, pinfo,
|
|
"(lcid:%u %u bytes) ", lcid, SDU_length);
|
|
offset += SDU_length;
|
|
}
|
|
else {
|
|
/* Control Elements */
|
|
if (p_mac_nr_info->direction == DIRECTION_UPLINK) {
|
|
guint32 phr_ph, phr_pcmac_c, c_rnti, lcg_id, bs;
|
|
|
|
switch (lcid) {
|
|
case CONFIGURED_GRANT_CONFIGURATION_LCID:
|
|
/* Fixed size of zero bits */
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo,
|
|
"(Configured Grant Config) ");
|
|
break;
|
|
case MULTIPLE_ENTRY_PHR_LCID:
|
|
/* variable size or deduced from bits? */
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo,
|
|
"(Multi-entry PHR) ");
|
|
offset += SDU_length;
|
|
break;
|
|
case SINGLE_ENTRY_PHR_LCID:
|
|
/* R R PH (6 bits) */
|
|
proto_tree_add_item(subheader_tree, hf_mac_nr_control_se_phr_reserved,
|
|
tvb, offset, 1, ENC_NA);
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_control_se_phr_ph,
|
|
tvb, offset, 1, ENC_NA, &phr_ph);
|
|
offset++;
|
|
|
|
/* R R PCMAXC (6 bits) */
|
|
proto_tree_add_item(subheader_tree, hf_mac_nr_control_se_phr_reserved,
|
|
tvb, offset, 1, ENC_NA);
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_control_se_phr_pcmax_c,
|
|
tvb, offset, 1, ENC_NA, &phr_pcmac_c);
|
|
offset++;
|
|
write_pdu_label_and_info(pdu_ti, subheader_ti, pinfo,
|
|
"(PHR PH=%u PCMAC_C=%u) ", phr_ph, phr_pcmac_c);
|
|
break;
|
|
case C_RNTI_LCID:
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_control_crnti,
|
|
tvb, offset, 2, ENC_BIG_ENDIAN, &c_rnti);
|
|
write_pdu_label_and_info(pdu_ti, subheader_ti, pinfo,
|
|
"(C-RNTI=%u) ", c_rnti);
|
|
offset += 2;
|
|
break;
|
|
case SHORT_TRUNCATED_BSR_LCID:
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_control_short_trunc_bsr_lcg_id,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN, &lcg_id);
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_control_short_trunc_bsr_bs,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN, &bs);
|
|
write_pdu_label_and_info(pdu_ti, subheader_ti, pinfo,
|
|
"(Short Truncated BSR LCG ID=%u BS=%u) ", lcg_id, bs);
|
|
offset++;
|
|
break;
|
|
|
|
case SHORT_BSR_LCID:
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_control_short_bsr_lcg_id,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN, &lcg_id);
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_control_short_bsr_bs,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN, &bs);
|
|
write_pdu_label_and_info(pdu_ti, subheader_ti, pinfo,
|
|
"(Short BSR LCG ID=%u BS=%u) ", lcg_id, bs);
|
|
offset++;
|
|
break;
|
|
case LONG_BSR_LCID:
|
|
case LONG_TRUNCATED_BSR_LCID:
|
|
{
|
|
static const int * long_bsr_flags[] = {
|
|
&hf_mac_nr_control_long_trunc_bsr_lcg7,
|
|
&hf_mac_nr_control_long_trunc_bsr_lcg6,
|
|
&hf_mac_nr_control_long_trunc_bsr_lcg5,
|
|
&hf_mac_nr_control_long_trunc_bsr_lcg4,
|
|
&hf_mac_nr_control_long_trunc_bsr_lcg3,
|
|
&hf_mac_nr_control_long_trunc_bsr_lcg2,
|
|
&hf_mac_nr_control_long_trunc_bsr_lcg1,
|
|
&hf_mac_nr_control_long_trunc_bsr_lcg0,
|
|
NULL
|
|
};
|
|
|
|
guint8 flags = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_bitmask_list(subheader_tree, tvb, offset, 1, long_bsr_flags, ENC_NA);
|
|
guint CE_start = offset;
|
|
offset++;
|
|
|
|
/* Show BSR values. TODO: break out into a function so can report in expert info if
|
|
Long BSR case is truncated... */
|
|
if ((flags & 0x01) && ((offset-CE_start) < SDU_length)) proto_tree_add_item(subheader_tree, hf_mac_nr_control_long_trunc_bsr_bs_lcg0, tvb, offset++, 1, ENC_NA);
|
|
if ((flags & 0x02) && ((offset-CE_start) < SDU_length)) proto_tree_add_item(subheader_tree, hf_mac_nr_control_long_trunc_bsr_bs_lcg1, tvb, offset++, 1, ENC_NA);
|
|
if ((flags & 0x04) && ((offset-CE_start) < SDU_length)) proto_tree_add_item(subheader_tree, hf_mac_nr_control_long_trunc_bsr_bs_lcg2, tvb, offset++, 1, ENC_NA);
|
|
if ((flags & 0x08) && ((offset-CE_start) < SDU_length)) proto_tree_add_item(subheader_tree, hf_mac_nr_control_long_trunc_bsr_bs_lcg3, tvb, offset++, 1, ENC_NA);
|
|
if ((flags & 0x10) && ((offset-CE_start) < SDU_length)) proto_tree_add_item(subheader_tree, hf_mac_nr_control_long_trunc_bsr_bs_lcg4, tvb, offset++, 1, ENC_NA);
|
|
if ((flags & 0x20) && ((offset-CE_start) < SDU_length)) proto_tree_add_item(subheader_tree, hf_mac_nr_control_long_trunc_bsr_bs_lcg5, tvb, offset++, 1, ENC_NA);
|
|
if ((flags & 0x40) && ((offset-CE_start) < SDU_length)) proto_tree_add_item(subheader_tree, hf_mac_nr_control_long_trunc_bsr_bs_lcg6, tvb, offset++, 1, ENC_NA);
|
|
if ((flags & 0x80) && ((offset-CE_start) < SDU_length)) proto_tree_add_item(subheader_tree, hf_mac_nr_control_long_trunc_bsr_bs_lcg7, tvb, offset++, 1, ENC_NA);
|
|
|
|
/* TODO: check change in offset against PDU_length */
|
|
/* TODO: show in string here how many BSs were seen */
|
|
if (lcid == LONG_BSR_LCID) {
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo,
|
|
"(Long BSR) ");
|
|
}
|
|
else {
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo,
|
|
"(Long Truncated BSR) ");
|
|
}
|
|
}
|
|
break;
|
|
case PADDING_LCID:
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo, "(Padding) ");
|
|
/* The rest of the PDU is padding */
|
|
proto_tree_add_item(subheader_tree, hf_mac_nr_padding, tvb, offset, -1, ENC_NA);
|
|
offset = tvb_captured_length(tvb);
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
/* Downlink control elements */
|
|
guint32 ta_tag_id, ta_ta;
|
|
|
|
switch (lcid) {
|
|
case DUPLICATION_ACTIVATION_DEACTIVATION_LCID:
|
|
{
|
|
static const int * dupl_act_deact_flags[] = {
|
|
&hf_mac_nr_control_dupl_act_deact_drb7,
|
|
&hf_mac_nr_control_dupl_act_deact_drb6,
|
|
&hf_mac_nr_control_dupl_act_deact_drb5,
|
|
&hf_mac_nr_control_dupl_act_deact_drb4,
|
|
&hf_mac_nr_control_dupl_act_deact_drb3,
|
|
&hf_mac_nr_control_dupl_act_deact_drb2,
|
|
&hf_mac_nr_control_dupl_act_deact_drb1,
|
|
&hf_mac_nr_control_dupl_act_deact_reserved,
|
|
NULL
|
|
};
|
|
proto_tree_add_bitmask_list(subheader_tree, tvb, offset, 1, dupl_act_deact_flags, ENC_NA);
|
|
offset++;
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo,
|
|
"(Dupl Act/Deact) ");
|
|
}
|
|
break;
|
|
case SCELL_ACTIVATION_DEACTIVATION_4:
|
|
{
|
|
static const int * scell_act_deact_1_flags[] = {
|
|
&hf_mac_nr_control_scell_act_deact_cell7,
|
|
&hf_mac_nr_control_scell_act_deact_cell6,
|
|
&hf_mac_nr_control_scell_act_deact_cell5,
|
|
&hf_mac_nr_control_scell_act_deact_cell4,
|
|
&hf_mac_nr_control_scell_act_deact_cell3,
|
|
&hf_mac_nr_control_scell_act_deact_cell2,
|
|
&hf_mac_nr_control_scell_act_deact_cell1,
|
|
&hf_mac_nr_control_scell_act_deact_reserved,
|
|
NULL
|
|
};
|
|
static const int * scell_act_deact_2_flags[] = {
|
|
&hf_mac_nr_control_scell_act_deact_cell15,
|
|
&hf_mac_nr_control_scell_act_deact_cell14,
|
|
&hf_mac_nr_control_scell_act_deact_cell13,
|
|
&hf_mac_nr_control_scell_act_deact_cell12,
|
|
&hf_mac_nr_control_scell_act_deact_cell11,
|
|
&hf_mac_nr_control_scell_act_deact_cell10,
|
|
&hf_mac_nr_control_scell_act_deact_cell9,
|
|
&hf_mac_nr_control_scell_act_deact_cell8,
|
|
NULL
|
|
};
|
|
static const int * scell_act_deact_3_flags[] = {
|
|
&hf_mac_nr_control_scell_act_deact_cell23,
|
|
&hf_mac_nr_control_scell_act_deact_cell22,
|
|
&hf_mac_nr_control_scell_act_deact_cell21,
|
|
&hf_mac_nr_control_scell_act_deact_cell20,
|
|
&hf_mac_nr_control_scell_act_deact_cell19,
|
|
&hf_mac_nr_control_scell_act_deact_cell18,
|
|
&hf_mac_nr_control_scell_act_deact_cell17,
|
|
&hf_mac_nr_control_scell_act_deact_cell16,
|
|
NULL
|
|
};
|
|
static const int * scell_act_deact_4_flags[] = {
|
|
&hf_mac_nr_control_scell_act_deact_cell31,
|
|
&hf_mac_nr_control_scell_act_deact_cell30,
|
|
&hf_mac_nr_control_scell_act_deact_cell29,
|
|
&hf_mac_nr_control_scell_act_deact_cell28,
|
|
&hf_mac_nr_control_scell_act_deact_cell27,
|
|
&hf_mac_nr_control_scell_act_deact_cell26,
|
|
&hf_mac_nr_control_scell_act_deact_cell25,
|
|
&hf_mac_nr_control_scell_act_deact_cell24,
|
|
NULL
|
|
};
|
|
proto_tree_add_bitmask_list(subheader_tree, tvb, offset, 1, scell_act_deact_1_flags, ENC_NA);
|
|
offset++;
|
|
proto_tree_add_bitmask_list(subheader_tree, tvb, offset, 1, scell_act_deact_2_flags, ENC_NA);
|
|
offset++;
|
|
proto_tree_add_bitmask_list(subheader_tree, tvb, offset, 1, scell_act_deact_3_flags, ENC_NA);
|
|
offset++;
|
|
proto_tree_add_bitmask_list(subheader_tree, tvb, offset, 1, scell_act_deact_4_flags, ENC_NA);
|
|
offset++;
|
|
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo,
|
|
"(SCell Act/Deact 4) ");
|
|
}
|
|
break;
|
|
case SCELL_ACTIVATION_DEACTIVATION_1:
|
|
{
|
|
static const int * scell_act_deact_1_flags[] = {
|
|
&hf_mac_nr_control_scell_act_deact_cell7,
|
|
&hf_mac_nr_control_scell_act_deact_cell6,
|
|
&hf_mac_nr_control_scell_act_deact_cell5,
|
|
&hf_mac_nr_control_scell_act_deact_cell4,
|
|
&hf_mac_nr_control_scell_act_deact_cell3,
|
|
&hf_mac_nr_control_scell_act_deact_cell2,
|
|
&hf_mac_nr_control_scell_act_deact_cell1,
|
|
&hf_mac_nr_control_scell_act_deact_reserved,
|
|
NULL
|
|
};
|
|
proto_tree_add_bitmask_list(subheader_tree, tvb, offset, 1, scell_act_deact_1_flags, ENC_NA);
|
|
offset++;
|
|
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo, "(SCell Act/Deact 1) ");
|
|
}
|
|
break;
|
|
case LONG_DRX_COMMAND_LCID:
|
|
/* Fixed size of zero bits */
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo, "(Long DRX) ");
|
|
break;
|
|
case DRX_COMMAND_LCID:
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo, "(DRX) ");
|
|
break;
|
|
case TIMING_ADVANCE_COMMAND_LCID:
|
|
/* TAG ID (2 bits) */
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_control_timing_advance_tagid,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN, &ta_tag_id);
|
|
|
|
/* Timing Advance Command (6 bits) */
|
|
proto_tree_add_item_ret_uint(subheader_tree, hf_mac_nr_control_timing_advance_command,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN, &ta_ta);
|
|
offset++;
|
|
|
|
write_pdu_label_and_info(pdu_ti, subheader_ti, pinfo,
|
|
"(TAG=%u TA=%u) ", ta_tag_id, ta_ta);
|
|
break;
|
|
case UE_CONTENTION_RESOLUTION_IDENTITY_LCID:
|
|
proto_tree_add_item(subheader_tree, hf_mac_nr_control_ue_contention_resolution_identity,
|
|
tvb, offset, 6, ENC_NA);
|
|
offset += 6;
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo, "(Contention Resolution) ");
|
|
break;
|
|
case PADDING_LCID:
|
|
write_pdu_label_and_info_literal(pdu_ti, subheader_ti, pinfo, "(Padding) ");
|
|
|
|
/* The rest of the PDU is padding */
|
|
proto_tree_add_item(subheader_tree, hf_mac_nr_padding, tvb, offset, -1, ENC_NA);
|
|
offset = tvb_captured_length(tvb);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Set subheader extent here */
|
|
proto_item_set_end(subheader_ti, tvb, offset);
|
|
|
|
} while (tvb_reported_length_remaining(tvb, offset));
|
|
|
|
}
|
|
|
|
|
|
/*****************************/
|
|
/* Main dissection function. */
|
|
static int dissect_mac_nr(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, void* data _U_)
|
|
{
|
|
proto_tree *mac_nr_tree;
|
|
proto_item *pdu_ti;
|
|
proto_tree *context_tree;
|
|
proto_item *context_ti, *ti;
|
|
gint offset = 0;
|
|
struct mac_nr_info *p_mac_nr_info;
|
|
|
|
/* Set protocol name */
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "MAC-NR");
|
|
|
|
/* Create protocol tree */
|
|
pdu_ti = proto_tree_add_item(tree, proto_mac_nr, tvb, offset, tvb_reported_length(tvb), ENC_NA);
|
|
proto_item_append_text(pdu_ti, " ");
|
|
mac_nr_tree = proto_item_add_subtree(pdu_ti, ett_mac_nr);
|
|
|
|
/* Look for packet info! */
|
|
p_mac_nr_info = (mac_nr_info *)p_get_proto_data(wmem_file_scope(), pinfo, proto_mac_nr, 0);
|
|
|
|
/* Can't dissect anything without it... */
|
|
if (p_mac_nr_info == NULL) {
|
|
proto_tree_add_expert(mac_nr_tree, pinfo, &ei_mac_nr_no_per_frame_data, tvb, offset, -1);
|
|
return 0;
|
|
}
|
|
|
|
/* Clear info column */
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
|
|
/*****************************************/
|
|
/* Show context information */
|
|
|
|
/* Create context root */
|
|
context_ti = proto_tree_add_string_format(mac_nr_tree, hf_mac_nr_context,
|
|
tvb, offset, 0, "", "Context");
|
|
context_tree = proto_item_add_subtree(context_ti, ett_mac_nr_context);
|
|
PROTO_ITEM_SET_GENERATED(context_ti);
|
|
|
|
/* Radio type */
|
|
ti = proto_tree_add_uint(context_tree, hf_mac_nr_context_radio_type,
|
|
tvb, 0, 0, p_mac_nr_info->radioType);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
|
|
/* Direction */
|
|
ti = proto_tree_add_uint(context_tree, hf_mac_nr_context_direction,
|
|
tvb, 0, 0, p_mac_nr_info->direction);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
|
|
/* RNTI type and value */
|
|
if (p_mac_nr_info->rntiType != NO_RNTI) {
|
|
ti = proto_tree_add_uint(context_tree, hf_mac_nr_context_rnti,
|
|
tvb, 0, 0, p_mac_nr_info->rnti);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
proto_item_append_text(context_ti, " (RNTI=%u)", p_mac_nr_info->rnti);
|
|
}
|
|
|
|
ti = proto_tree_add_uint(context_tree, hf_mac_nr_context_rnti_type,
|
|
tvb, 0, 0, p_mac_nr_info->rntiType);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
|
|
/* UEId */
|
|
if (p_mac_nr_info->ueid != 0) {
|
|
ti = proto_tree_add_uint(context_tree, hf_mac_nr_context_ueid,
|
|
tvb, 0, 0, p_mac_nr_info->ueid);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
}
|
|
|
|
|
|
/* Dissect the MAC PDU itself. Format depends upon RNTI type. */
|
|
switch (p_mac_nr_info->rntiType) {
|
|
|
|
case P_RNTI:
|
|
/* PCH PDU */
|
|
// dissect_pch(tvb, pinfo, mac_nr_tree, pdu_ti, offset, p_mac_nr_info, tap_info);
|
|
break;
|
|
|
|
case RA_RNTI:
|
|
/* RAR PDU */
|
|
dissect_rar(tvb, pinfo, mac_nr_tree, pdu_ti, offset, p_mac_nr_info);
|
|
break;
|
|
|
|
case C_RNTI:
|
|
case CS_RNTI:
|
|
/* Can be UL-SCH or DL-SCH */
|
|
dissect_ulsch_or_dlsch(tvb, pinfo, mac_nr_tree, pdu_ti, offset,
|
|
p_mac_nr_info,
|
|
context_tree);
|
|
break;
|
|
|
|
case SI_RNTI:
|
|
/* BCH over DL-SCH */
|
|
// dissect_bch(tvb, pinfo, mac_nr_tree, pdu_ti, offset, p_mac_nr_info);
|
|
break;
|
|
|
|
case NO_RNTI:
|
|
/* Must be BCH over BCH... */
|
|
// dissect_bch(tvb, pinfo, mac_nr_tree, pdu_ti, offset, p_mac_nr_info);
|
|
break;
|
|
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* Heuristic dissector looks for supported framing protocol (see header file for details) */
|
|
static gboolean dissect_mac_nr_heur(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, void *data _U_)
|
|
{
|
|
gint offset = 0;
|
|
mac_nr_info *p_mac_nr_info;
|
|
tvbuff_t *mac_tvb;
|
|
guint8 tag;
|
|
|
|
/* Needs to be at least as long as:
|
|
- the signature string
|
|
- fixed header bytes
|
|
- tag for data
|
|
- at least one byte of MAC PDU payload */
|
|
if (tvb_captured_length_remaining(tvb, offset) < (gint)(strlen(MAC_NR_START_STRING)+3+2)) {
|
|
return FALSE;
|
|
}
|
|
|
|
/* OK, compare with signature string */
|
|
if (tvb_strneql(tvb, offset, MAC_NR_START_STRING, strlen(MAC_NR_START_STRING)) != 0) {
|
|
return FALSE;
|
|
}
|
|
offset += (gint)strlen(MAC_NR_START_STRING);
|
|
|
|
/* If redissecting, use previous info struct (if available) */
|
|
p_mac_nr_info = (mac_nr_info *)p_get_proto_data(wmem_file_scope(), pinfo, proto_mac_nr, 0);
|
|
if (p_mac_nr_info == NULL) {
|
|
/* Allocate new info struct for this frame */
|
|
p_mac_nr_info = wmem_new0(wmem_file_scope(), mac_nr_info);
|
|
|
|
/* Read fixed fields */
|
|
p_mac_nr_info->radioType = tvb_get_guint8(tvb, offset++);
|
|
p_mac_nr_info->direction = tvb_get_guint8(tvb, offset++);
|
|
p_mac_nr_info->rntiType = tvb_get_guint8(tvb, offset++);
|
|
|
|
/* Read optional fields */
|
|
do {
|
|
/* Process next tag */
|
|
tag = tvb_get_guint8(tvb, offset++);
|
|
switch (tag) {
|
|
case MAC_NR_RNTI_TAG:
|
|
p_mac_nr_info->rnti = tvb_get_ntohs(tvb, offset);
|
|
offset += 2;
|
|
break;
|
|
case MAC_NR_UEID_TAG:
|
|
p_mac_nr_info->ueid = tvb_get_ntohs(tvb, offset);
|
|
offset += 2;
|
|
break;
|
|
case MAC_NR_FRAME_SUBFRAME_TAG:
|
|
p_mac_nr_info->sysframeNumber = tvb_get_bits16(tvb, offset<<3, 12, ENC_BIG_ENDIAN);
|
|
p_mac_nr_info->subframeNumber = tvb_get_bits8(tvb, ((offset+1)<<3)+4, 4);
|
|
offset += 2;
|
|
break;
|
|
case MAC_NR_PAYLOAD_TAG:
|
|
/* Have reached data, so set payload length and get out of loop */
|
|
/* TODO: this is not correct if there is padding which isn't in frame */
|
|
p_mac_nr_info->length = tvb_reported_length_remaining(tvb, offset);
|
|
continue;
|
|
default:
|
|
/* It must be a recognised tag */
|
|
wmem_free(wmem_file_scope(), p_mac_nr_info);
|
|
return FALSE;
|
|
}
|
|
} while (tag != MAC_NR_PAYLOAD_TAG);
|
|
|
|
p_add_proto_data(wmem_file_scope(), pinfo, proto_mac_nr, 0, p_mac_nr_info);
|
|
}
|
|
else {
|
|
offset = tvb_reported_length(tvb) - p_mac_nr_info->length;
|
|
}
|
|
|
|
/**************************************/
|
|
/* OK, now dissect as MAC NR */
|
|
|
|
/* Create tvb that starts at actual MAC PDU */
|
|
mac_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
dissect_mac_nr(mac_tvb, pinfo, tree, NULL);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Function to be called from outside this module (e.g. in a plugin) to get per-packet data */
|
|
mac_nr_info *get_mac_nr_proto_data(packet_info *pinfo)
|
|
{
|
|
return (mac_nr_info *)p_get_proto_data(wmem_file_scope(), pinfo, proto_mac_nr, 0);
|
|
}
|
|
|
|
/* Function to be called from outside this module (e.g. in a plugin) to set per-packet data */
|
|
void set_mac_nr_proto_data(packet_info *pinfo, mac_nr_info *p_mac_nr_info)
|
|
{
|
|
p_add_proto_data(wmem_file_scope(), pinfo, proto_mac_nr, 0, p_mac_nr_info);
|
|
}
|
|
|
|
void proto_register_mac_nr(void)
|
|
{
|
|
static hf_register_info hf[] =
|
|
{
|
|
/**********************************/
|
|
/* Items for decoding context */
|
|
{ &hf_mac_nr_context,
|
|
{ "Context",
|
|
"mac-nr.context", FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_context_radio_type,
|
|
{ "Radio Type",
|
|
"mac-nr.radio-type", FT_UINT8, BASE_DEC, VALS(radio_type_vals), 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_context_direction,
|
|
{ "Direction",
|
|
"mac-nr.direction", FT_UINT8, BASE_DEC, VALS(direction_vals), 0x0,
|
|
"Direction of message", HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_context_rnti,
|
|
{ "RNTI",
|
|
"mac-nr.rnti", FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
|
|
"RNTI associated with message", HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_context_rnti_type,
|
|
{ "RNTI Type",
|
|
"mac-nr.rnti-type", FT_UINT8, BASE_DEC, VALS(rnti_type_vals), 0x0,
|
|
"Type of RNTI associated with message", HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_context_ueid,
|
|
{ "UEId",
|
|
"mac-nr.ueid", FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"User Equipment Identifier associated with message", HFILL
|
|
}
|
|
},
|
|
|
|
{ &hf_mac_nr_subheader,
|
|
{ "Subheader",
|
|
"mac-nr.subheader", FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_subheader_reserved,
|
|
{ "Reserved",
|
|
"mac-nr.subheader.reserved", FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_subheader_f,
|
|
{ "Format",
|
|
"mac-nr.subheader.f", FT_BOOLEAN, 8, TFS(&subheader_f_vals), 0x40,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_subheader_length_1_byte,
|
|
{ "SDU Length",
|
|
"mac-nr.subheader.sdu-length", FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_subheader_length_2_bytes,
|
|
{ "SDU Length",
|
|
"mac-nr.subheader.sdu-length", FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_ulsch_lcid,
|
|
{ "LCID",
|
|
"mac-nr.ulsch.lcid", FT_UINT8, BASE_HEX|BASE_EXT_STRING, &ulsch_lcid_vals_ext, 0x3f,
|
|
"UL-SCH Logical Channel Identifier", HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_dlsch_lcid,
|
|
{ "LCID",
|
|
"mac-nr.dlsch.lcid", FT_UINT8, BASE_HEX|BASE_EXT_STRING, &dlsch_lcid_vals_ext, 0x3f,
|
|
"DL-SCH Logical Channel Identifier", HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_ulsch_sdu,
|
|
{ "ULSCH SDU",
|
|
"mac-nr.ulsch.sdu", FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_dlsch_sdu,
|
|
{ "DLSCH SDU",
|
|
"mac-nr.dlsch.sdu", FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
|
|
|
|
/*********************************/
|
|
/* RAR fields */
|
|
{ &hf_mac_nr_rar,
|
|
{ "RAR",
|
|
"mac-nr.rar", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_rar_e,
|
|
{ "Extension",
|
|
"mac-nr.rar.e", FT_BOOLEAN, 8, TFS(&rar_ext_vals), 0x80,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_rar_t,
|
|
{ "Type",
|
|
"mac-nr.rar.t", FT_BOOLEAN, 8, TFS(&rar_type_vals), 0x40,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_rar_reserved,
|
|
{ "Reserved",
|
|
"mac-nr.rar.reserved", FT_UINT8, BASE_DEC, NULL, 0x30,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_rar_subheader,
|
|
{ "Subheader",
|
|
"mac-nr.rar.subheader", FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_rar_bi,
|
|
{ "Backoff Indicator",
|
|
"mac-nr.rar.bi", FT_UINT8, BASE_DEC, VALS(rar_bi_vals), 0x0f,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_rar_rapid,
|
|
{ "RAPID",
|
|
"mac-nr.rar.rapid", FT_UINT8, BASE_DEC, NULL, 0x3f,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_rar_ta,
|
|
{ "Timing Advance",
|
|
"mac-nr.rar.ta", FT_UINT16, BASE_DEC, NULL, 0xfff0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_rar_grant,
|
|
{ "Grant",
|
|
"mac-nr.rar.grant", FT_UINT24, BASE_DEC, NULL, 0x0fffff,
|
|
"UL Grant details", HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_rar_crnti,
|
|
{ "C-RNTI",
|
|
"mac-nr.rar.crnti", FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
|
|
{ &hf_mac_nr_padding,
|
|
{ "Padding",
|
|
"mac-nr.padding", FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
|
|
{ &hf_mac_nr_control_crnti,
|
|
{ "C-RNTI",
|
|
"mac-nr.control.crnti", FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_ue_contention_resolution_identity,
|
|
{ "UE Contention Resolution Identity",
|
|
"mac-nr.control.ue-contention-resolution.identity", FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_timing_advance_tagid,
|
|
{ "TAG ID",
|
|
"mac-nr.control.timing-advance.tag-id", FT_UINT8, BASE_DEC, NULL, 0xc0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_timing_advance_command,
|
|
{ "Timing Advance Command",
|
|
"mac-nr.control.timing-advance.command", FT_UINT8, BASE_DEC, NULL, 0x3f,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_se_phr_reserved,
|
|
{ "Reserved",
|
|
"mac-nr.control.se-phr.reserved", FT_UINT8, BASE_HEX, NULL, 0xc0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_se_phr_ph,
|
|
{ "Power Headroom",
|
|
"mac-nr.control.se-phr.ph", FT_UINT8, BASE_DEC, NULL, 0x3f,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_se_phr_pcmax_c,
|
|
{ "Pcmax,c",
|
|
"mac-nr.control.se-phr.pcmax_c", FT_UINT8, BASE_DEC, NULL, 0x3f,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_dupl_act_deact_drb7,
|
|
{ "DRB 7",
|
|
"mac-nr.control.dupl-act-deact.drb7", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x80,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_dupl_act_deact_drb6,
|
|
{ "DRB 6",
|
|
"mac-nr.control.dupl-act-deact.drb6", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x40,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_dupl_act_deact_drb5,
|
|
{ "DRB 5",
|
|
"mac-nr.control.dupl-act-deact.drb5", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x20,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_dupl_act_deact_drb4,
|
|
{ "DRB 4",
|
|
"mac-nr.control.dupl-act-deact.drb4", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x10,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_dupl_act_deact_drb3,
|
|
{ "DRB 3",
|
|
"mac-nr.control.dupl-act-deact.drb3", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x08,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_dupl_act_deact_drb2,
|
|
{ "DRB 2",
|
|
"mac-nr.control.dupl-act-deact.drb2", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x04,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_dupl_act_deact_drb1,
|
|
{ "DRB 1",
|
|
"mac-nr.control.dupl-act-deact.drb1", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x02,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_dupl_act_deact_reserved,
|
|
{ "Reserved",
|
|
"mac-nr.control.dupl-act-deact.reserved", FT_UINT8, BASE_HEX, NULL, 0x01,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell7,
|
|
{ "Cell 7",
|
|
"mac-nr.control.scell-act-deact.cell7", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x80,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell6,
|
|
{ "Cell 6",
|
|
"mac-nr.control.scell-act-deact.cell6", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x40,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell5,
|
|
{ "Cell 5",
|
|
"mac-nr.control.scell-act-deact.cell5", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x20,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell4,
|
|
{ "Cell 4",
|
|
"mac-nr.control.scell-act-deact.cell4", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x10,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell3,
|
|
{ "Cell 3",
|
|
"mac-nr.control.scell-act-deact.cell3", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x08,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell2,
|
|
{ "Cell 2",
|
|
"mac-nr.control.scell-act-deact.cell2", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x04,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell1,
|
|
{ "Cell 1",
|
|
"mac-nr.control.scell-act-deact.cell1", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x02,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_reserved,
|
|
{ "Reserved",
|
|
"mac-nr.control.scell-act-deact.reserved", FT_UINT8, BASE_HEX, NULL, 0x01,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell15,
|
|
{ "Cell 15",
|
|
"mac-nr.control.scell-act-deact.cell15", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x80,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell14,
|
|
{ "Cell 14",
|
|
"mac-nr.control.scell-act-deact.cell14", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x40,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell13,
|
|
{ "Cell 13",
|
|
"mac-nr.control.scell-act-deact.cell13", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x20,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell12,
|
|
{ "Cell 12",
|
|
"mac-nr.control.scell-act-deact.cell12", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x10,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell11,
|
|
{ "Cell 11",
|
|
"mac-nr.control.scell-act-deact.cell11", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x08,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell10,
|
|
{ "Cell 10",
|
|
"mac-nr.control.scell-act-deact.cell10", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x04,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell9,
|
|
{ "Cell 9",
|
|
"mac-nr.control.scell-act-deact.cell9", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x02,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell8,
|
|
{ "Cell 8",
|
|
"mac-nr.control.scell-act-deact.cell8", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x01,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell23,
|
|
{ "Cell 23",
|
|
"mac-nr.control.scell-act-deact.cell23", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x80,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell22,
|
|
{ "Cell 22",
|
|
"mac-nr.control.scell-act-deact.cell22", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x40,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell21,
|
|
{ "Cell 21",
|
|
"mac-nr.control.scell-act-deact.cell21", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x20,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell20,
|
|
{ "Cell 20",
|
|
"mac-nr.control.scell-act-deact.cell20", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x10,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell19,
|
|
{ "Cell 19",
|
|
"mac-nr.control.scell-act-deact.cell19", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x08,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell18,
|
|
{ "Cell 18",
|
|
"mac-nr.control.scell-act-deact.cell18", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x04,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell17,
|
|
{ "Cell 17",
|
|
"mac-nr.control.scell-act-deact.cell17", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x02,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell16,
|
|
{ "Cell 16",
|
|
"mac-nr.control.scell-act-deact.cell16", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x01,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell31,
|
|
{ "Cell 31",
|
|
"mac-nr.control.scell-act-deact.cell31", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x80,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell30,
|
|
{ "Cell 30",
|
|
"mac-nr.control.scell-act-deact.cell30", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x40,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell29,
|
|
{ "Cell 29",
|
|
"mac-nr.control.scell-act-deact.cell29", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x20,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell28,
|
|
{ "Cell 28",
|
|
"mac-nr.control.scell-act-deact.cell28", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x10,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell27,
|
|
{ "Cell 27",
|
|
"mac-nr.control.scell-act-deact.cell27", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x08,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell26,
|
|
{ "Cell 26",
|
|
"mac-nr.control.scell-act-deact.cell26", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x04,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell25,
|
|
{ "Cell 25",
|
|
"mac-nr.control.scell-act-deact.cell25", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x02,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_scell_act_deact_cell24,
|
|
{ "Cell 24",
|
|
"mac-nr.control.scell-act-deact.cell24", FT_BOOLEAN, 8, TFS(&tfs_activated_deactivated), 0x01,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_short_trunc_bsr_lcg_id,
|
|
{ "Logical Channel Group ID",
|
|
"mac-nr.control.short-trunc-bsr.lcg-id", FT_UINT8, BASE_DEC, NULL, 0xe0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_short_trunc_bsr_bs,
|
|
{ "Buffer Size",
|
|
"mac-nr.control.short-trunc-bsr.bs", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &buffer_size_5bits_vals_ext, 0x1f,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_short_bsr_lcg_id,
|
|
{ "Logical Channel Group ID",
|
|
"mac-nr.control.short-bsr.lcg-id", FT_UINT8, BASE_DEC, NULL, 0xe0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_short_bsr_bs,
|
|
{ "Buffer Size",
|
|
"mac-nr.control.short-bsr.bs", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &buffer_size_5bits_vals_ext, 0x1f,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_lcg7,
|
|
{ "LCG7",
|
|
"mac-nr.control.long-bsr.lcg7", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x80,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_lcg6,
|
|
{ "LCG6",
|
|
"mac-nr.control.long-bsr.lcg6", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x40,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_lcg5,
|
|
{ "LCG5",
|
|
"mac-nr.control.long-bsr.lcg5", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x20,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_lcg4,
|
|
{ "LCG4",
|
|
"mac-nr.control.long-bsr.lcg4", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x10,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_lcg3,
|
|
{ "LCG3",
|
|
"mac-nr.control.long-bsr.lcg3", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x08,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_lcg2,
|
|
{ "LCG2",
|
|
"mac-nr.control.long-bsr.lcg2", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x04,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_lcg1,
|
|
{ "LCG1",
|
|
"mac-nr.control.long-bsr.lcg1", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x02,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_lcg0,
|
|
{ "LCG0",
|
|
"mac-nr.control.long-bsr.lcg0", FT_BOOLEAN, 8, TFS(&tfs_present_not_present), 0x01,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_bs_lcg7,
|
|
{ "Buffer Size for LCG7",
|
|
"mac-nr.control.long-trunc-bsr.bs.lcg7", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &buffer_size_8bits_vals_ext, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_bs_lcg6,
|
|
{ "Buffer Size for LCG6",
|
|
"mac-nr.control.long-trunc-bsr.bs.lcg6", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &buffer_size_8bits_vals_ext, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_bs_lcg5,
|
|
{ "Buffer Size for LCG5",
|
|
"mac-nr.control.long-trunc-bsr.bs.lcg5", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &buffer_size_8bits_vals_ext, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_bs_lcg4,
|
|
{ "Buffer Size for LCG4",
|
|
"mac-nr.control.long-trunc-bsr.bs.lcg4", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &buffer_size_8bits_vals_ext, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_bs_lcg3,
|
|
{ "Buffer Size for LCG3",
|
|
"mac-nr.control.long-trunc-bsr.bs.lcg3", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &buffer_size_8bits_vals_ext, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_bs_lcg2,
|
|
{ "Buffer Size for LCG2",
|
|
"mac-nr.control.long-trunc-bsr.bs.lcg2", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &buffer_size_8bits_vals_ext, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_bs_lcg1,
|
|
{ "Buffer Size for LCG1",
|
|
"mac-nr.control.long-trunc-bsr.bs.lcg1", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &buffer_size_8bits_vals_ext, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
{ &hf_mac_nr_control_long_trunc_bsr_bs_lcg0,
|
|
{ "Buffer Size for LCG0",
|
|
"mac-nr.control.long-trunc-bsr.bs.lcg0", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &buffer_size_8bits_vals_ext, 0x0,
|
|
NULL, HFILL
|
|
}
|
|
},
|
|
|
|
};
|
|
|
|
static gint *ett[] =
|
|
{
|
|
&ett_mac_nr,
|
|
&ett_mac_nr_context,
|
|
&ett_mac_nr_subheader,
|
|
&ett_mac_nr_rar_subheader
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_mac_nr_no_per_frame_data, { "mac-nr.no_per_frame_data", PI_UNDECODED, PI_WARN, "Can't dissect NR MAC frame because no per-frame info was attached!", EXPFILL }},
|
|
};
|
|
|
|
expert_module_t* expert_mac_nr;
|
|
|
|
/* Register protocol. */
|
|
proto_mac_nr = proto_register_protocol("MAC-NR", "MAC-NR", "mac-nr");
|
|
proto_register_field_array(proto_mac_nr, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_mac_nr = expert_register_protocol(proto_mac_nr);
|
|
expert_register_field_array(expert_mac_nr, ei, array_length(ei));
|
|
|
|
/* Allow other dissectors to find this one by name. */
|
|
register_dissector("mac-nr", dissect_mac_nr, proto_mac_nr);
|
|
}
|
|
|
|
void proto_reg_handoff_mac_nr(void)
|
|
{
|
|
/* Add as a heuristic UDP dissector */
|
|
heur_dissector_add("udp", dissect_mac_nr_heur, "MAC-NR over UDP", "mac_nr_udp", proto_mac_nr, HEURISTIC_DISABLE);
|
|
}
|
|
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|