Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1654 insertions, 0 deletions

diff --git a/epan/dissectors/packet-gmr1_bcch.c b/epan/dissectors/packet-gmr1_bcch.c
new file mode 100644
index 0000000..7e6171e
--- /dev/null
+++ b/epan/dissectors/packet-gmr1_bcch.c
@@ -0,0 +1,1654 @@
+/* packet-gmr1_bcch.c
+ *
+ * Routines for GMR-1 BCCH dissection in wireshark.
+ * Copyright (c) 2011 Sylvain Munaut <tnt@246tNt.com>
+ *
+ * References:
+ *  [1] ETSI TS 101 376-4-8 V1.3.1 - GMR-1 04.008
+ *  [2] ETSI TS 101 376-4-8 V2.2.1 - GMPRS-1 04.008
+ *  [3] ETSI TS 101 376-4-8 V3.1.1 - GMR-1 3G 44.008
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include <epan/expert.h>
+#include "packet-csn1.h"
+
+void proto_register_gmr1_bcch(void);
+
+/* GMR-1 BCCH proto */
+static int proto_gmr1_bcch = -1;
+
+/* GMR-1 BCCH sub tree */
+static gint ett_gmr1_bcch = -1;
+
+static expert_field ei_unknown_segment = EI_INIT;
+
+/* ------------------------------------------------------------------------ */
+/* CSN1 fields                                                              */
+/* ------------------------------------------------------------------------ */
+
+/* Segment 1A fields - [3] 11.5.2.66 */
+static int hf_seg1a_class_2_version = -1;
+static int hf_seg1a_class_3_version = -1;
+
+static int hf_seg1a_syncinfo_sb_frame_ts_offset = -1;
+static int hf_seg1a_syncinfo_sb_symbol_offset = -1;
+static int hf_seg1a_syncinfo_sa_freq_offset = -1;
+
+static int hf_seg1a_rachctrl_max_retrans = -1;
+static int hf_seg1a_rachctrl_acc[16] = { -1, -1, -1, -1, -1, -1, -1, -1,
+					 -1, -1, -1, -1, -1, -1, -1, -1 };
+static int hf_seg1a_rachctrl_cell_bar_access = -1;
+
+static int hf_seg1a_miscinfo_sb_reselection_hysteresis = -1;
+static int hf_seg1a_miscinfo_spare = -1;
+static int hf_seg1a_miscinfo_priority_access_ind = -1;
+
+static int hf_seg1a_gbch_present = -1;
+static int hf_seg1a_test_gs = -1;
+static int hf_seg1a_test_gs2 = -1;
+static int hf_seg1a_spare1 = -1;
+static int hf_seg1a_cell_bar_access_extension2 = -1;
+static int hf_seg1a_spare2 = -1;
+static int hf_seg1a_cell_bar_access_extension = -1;
+
+/* Segment 2A & 2Abis fields - [3] 11.5.2.67 / 11.5.2.68 */
+static int hf_seg2a_class_4_version = -1;
+
+static int hf_seg2a_syncinfo_sa_sirfn_delay = -1;
+static int hf_seg2a_syncinfo_sa_bcch_stn = -1;
+static int hf_seg2a_syncinfo_superframe_num = -1;
+static int hf_seg2a_syncinfo_multiframe_num = -1;
+static int hf_seg2a_syncinfo_mffn_high_bit = -1;
+
+static int hf_seg2a_selcrit_rxlev_select_min = -1;
+
+static int hf_seg2a_miscinfo_sb_selection_power = -1;
+
+static int hf_seg2a_lainfo_sa_pch_config = -1;
+static int hf_seg2a_lainfo_sa_bach_config = -1;
+static int hf_seg2a_lainfo_rach_ts_offset = -1;
+static int hf_seg2a_lainfo_n_page_occurrences = -1;
+static int hf_seg2a_lainfo_imsi_attach_detach_ind = -1;
+static int hf_seg2a_lainfo_ecsc_indication = -1;
+static int hf_seg2a_lainfo_si_update_ind = -1;
+
+static int hf_seg2a_class_type = -1;
+static int hf_seg2a_segment_type_a = -1;
+static int hf_seg2a_segment_type_abis = -1;
+
+/* Segment 2B fields */
+static int hf_seg2b_segment_type_b = -1;
+/* Segment 2Bbis fields */
+static int hf_seg2b_segment_type_bbis = -1;
+
+/* Segment 3A fields - [1] 11.5.2.71 */
+static int hf_seg3a_class_type = -1;
+static int hf_seg3a_segment_type_a = -1;
+static int hf_seg3a_lai_dissector = -1;
+static int hf_seg3a_lai_mcc = -1;
+static int hf_seg3a_lai_mnc = -1;
+static int hf_seg3a_lai_lac = -1;
+static int hf_seg3a_lai_msc_id = -1;
+static int hf_seg3a_lai_spot_beam_id = -1;
+
+static int hf_seg3a_system_sat_id = -1;
+static int hf_seg3a_system_sys_id = -1;
+
+static int hf_seg3a_satpos_latitude = -1;
+static int hf_seg3a_satpos_longitude = -1;
+static int hf_seg3a_satpos_radius = -1;
+
+static int hf_seg3a_beam_latitude = -1;
+static int hf_seg3a_beam_longitude = -1;
+
+static int hf_seg3a_miscinfo_sb_reselection_timer = -1;
+
+static int hf_seg3a_spare = -1;
+
+static int hf_seg3b_segment_type_b = -1;
+static int hf_seg3b_segment_type_bbis = -1;
+static int hf_seg3c_segment_type_c = -1;
+static int hf_seg3d_segment_type_d = -1;
+static int hf_seg3e_segment_type_e = -1;
+static int hf_seg3e_segment_type_ebis = -1;
+static int hf_seg3f_segment_type_f = -1;
+static int hf_seg3g_segment_type_g = -1;
+static int hf_seg3g_segment_type_gbis = -1;
+static int hf_seg3h_segment_type_h = -1;
+static int hf_seg3i_segment_type_i = -1;
+static int hf_seg3j_segment_type_j = -1;
+static int hf_seg3j_segment_type_jbis = -1;
+static int hf_seg3k_segment_type_kbis = -1;
+static int hf_seg4a_class_type = -1;
+static int hf_seg4a_segment_type_a = -1;
+static int hf_seg4b_segment_type_b = -1;
+static int hf_seg4c_segment_type_c = -1;
+static int hf_seg4d_segment_type_d = -1;
+static int hf_seg4e_segment_type_e = -1;
+static int hf_seg4f_segment_type_f = -1;
+static int hf_seg4g_segment_type_g = -1;
+static int hf_seg4h_segment_type_h = -1;
+static int hf_seg4i_segment_type_i = -1;
+static int hf_seg4j_segment_type_j = -1;
+static int hf_seg4k_segment_type_k = -1;
+
+/* Segment 3B fields */
+/* Segment 3Bbis fields */
+/* Segment 3C fields */
+/* Segment 3D fields */
+/* Segment 3E fields */
+/* Segment 3Ebis fields */
+/* Segment 3F fields */
+/* Segment 3G fields */
+/* Segment 3Gbis fields */
+/* Segment 3H fields */
+/* Segment 3I fields */
+/* Segment 3J fields */
+/* Segment 3Jbis fields */
+/* Segment 3Kbis fields */
+/* Segment 3L fields */
+/* Segment 3M fields */
+/* Segment 4A fields */
+/* Segment 4B fields */
+/* Segment 4C fields */
+/* Segment 4D fields */
+/* Segment 4E fields */
+/* Segment 4F fields */
+/* Segment 4G fields */
+/* Segment 4H fields */
+/* Segment 4I fields */
+/* Segment 4J fields */
+/* Segment 4K fields */
+
+/* System Information fields [1] 10.1.31 & 10.1.32 */
+static int hf_si1_segment_choice = -1;
+static int hf_si_protocol_version = -1;
+static int hf_si_block_type = -1;
+static int hf_si_spare = -1;
+
+static int hf_si1_randomization_period = -1;
+
+
+/* ------------------------------------------------------------------------ */
+/* CSN1 parsing structure                                                   */
+/* ------------------------------------------------------------------------ */
+
+/* Segments structures */
+
+	/* Segment 1A - [3] 11.5.2.66 */
+typedef struct {
+	guint8	SB_FRAME_TS_OFFSET;
+	gint8	SB_SYMBOL_OFFSET;
+	gint8	SA_FREQ_OFFSET;
+} Seg1A_SyncInfo_t;
+
+typedef struct {
+	guint8	AC15;
+	guint8	AC14;
+	guint8	AC13;
+	guint8	AC12;
+	guint8	AC11;
+	guint8	EC10;
+	guint8	AC9;
+	guint8	AC8;
+	guint8	AC7;
+	guint8	AC6;
+	guint8	AC5;
+	guint8	AC4;
+	guint8	AC3;
+	guint8	AC2;
+	guint8	AC1;
+	guint8	AC0;
+} Seg1A_AccessClasses_t;
+
+typedef struct {
+	guint8	Max_Retrans;
+	Seg1A_AccessClasses_t AccessClasses;
+	guint8	CELL_BAR_ACCESS;
+} Seg1A_RACHCtrlParams_t;
+
+typedef struct {
+	guint8	SB_RESELECTION_HYSTERESIS;
+	guint8	Spare;
+	guint8	PriorityAccessInd;
+} Seg1A_MiscInfo_t;
+
+typedef struct {
+	guint8	Class_2_version;
+	guint8	Class_3_version;
+	Seg1A_SyncInfo_t SyncInfo;
+	Seg1A_RACHCtrlParams_t RACHCtrlParams;
+	Seg1A_MiscInfo_t MiscInfo;
+	guint8	GBCH_Present;
+	guint8	Test_GS;
+	guint8	Test_GS2;
+	guint8	Spare1;
+	guint8	CELL_BAR_ACCESS_EXTENSION2;
+	guint8	Spare2;
+	guint8	CELL_BAR_ACCESS_EXTENSION;
+} Segment1A_t;
+
+	/* Segment 2A & 2Abis - [3] 11.5.2.67 / 11.5.2.68 */
+typedef struct {
+	guint8	SA_SIRFN_DELAY;
+	guint8	SA_BCCH_STN;
+	guint16	SuperframeNum;
+	guint8	MultiframeNum;
+	guint8	MFFN_HighBit;
+} Seg2A_SyncInfo_t;
+
+typedef struct {
+	guint8	RXLEV_SELECT_MIN;
+} Seg2A_SelectionCriterion_t;
+
+typedef struct {
+	guint8	SB_SELECTION_POWER;
+} Seg2A_MiscInfo_t;
+
+typedef struct {
+	guint8	SA_PCH_CONFIG;
+	guint8	SA_BACH_CONFIG;
+	guint8	RACH_TS_OFFSET;
+	guint8	N_Page_Occurrences;
+	guint8	IMSI_attach_detach_ind;
+	guint8	ECSC_ind;
+	guint8	SI_update_ind;
+} Seg2A_LAInfo_t;
+
+typedef struct {
+	guint8	Class_4_version;
+	Seg2A_SyncInfo_t SyncInfo;
+	Seg2A_SelectionCriterion_t SelectionCriterion;
+	Seg2A_MiscInfo_t MiscInfo;
+	Seg2A_LAInfo_t LAInfo;
+} Segment2A_t;
+
+typedef struct {
+	guint8	Class_4_version;
+	Seg2A_SyncInfo_t SyncInfo;
+	Seg2A_SelectionCriterion_t SelectionCriterion;
+	Seg2A_MiscInfo_t MiscInfo;
+	Seg2A_LAInfo_t LAInfo;
+} Segment2Abis_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment2B_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment2Bbis_t;
+
+	/* Segment 3A - [1] 11.5.2.71 */
+typedef struct {
+	guint16 MCC;
+	guint16 MNC;
+	guint16 LAC;
+	guint8 MSC_ID;		/* split version of LAC */
+	guint16 Spot_Beam_ID;	/* split version of LAC */
+} Seg3A_LAI_t;
+
+typedef struct {
+	guint8 Satellite_ID;
+	guint8 System_ID;
+} Seg3A_System_t;
+
+typedef struct {
+	gint8   Latitude;
+	guint16 Longitude;
+	gint16  Radius;
+} Seg3A_SatellitePosition_t;
+
+typedef struct {
+	gint16  Latitude;
+	guint16 Longitude;
+} Seg3A_BeamPosition_t;
+
+typedef struct {
+	guint8 SB_RESELECTION_TIMER;
+} Seg3A_MiscInfo_t;
+
+typedef struct {
+	Seg3A_LAI_t LAI;
+	Seg3A_System_t System;
+	Seg3A_SatellitePosition_t SatellitePosition;
+	Seg3A_BeamPosition_t BeamPosition;
+	Seg3A_MiscInfo_t MiscInfo;
+	guint8 Spare;
+} Segment3A_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3B_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3Bbis_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3C_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3D_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3E_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3Ebis_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3F_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3G_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3Gbis_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3H_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3I_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3J_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3Jbis_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3Kbis_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3L_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment3M_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4A_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4B_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4C_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4D_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4E_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4F_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4G_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4H_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4I_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4J_t;
+
+typedef struct {
+	guint8 _dummy; /* Remove when dissection is written */
+} Segment4K_t;
+
+/* System informations structures */
+
+	/* System Information type 1 - [1] 10.1.31 */
+typedef struct {
+	guint8		Protocol_Version;
+	guint8		Block_Type;
+	guint8		Randomization_Period;
+	guint8		Spare;
+} SI1_Block_Header_t;
+
+typedef struct {
+	SI1_Block_Header_t	Block_Header;
+	Segment1A_t		Segment1A;
+	guint8			SegmentType;
+	union {
+		Segment2Abis_t		Segment2Abis;
+		Segment2Bbis_t		Segment2Bbis;
+		Segment3A_t		Segment3A;
+		Segment3Bbis_t		Segment3Bbis;
+		Segment3C_t		Segment3C;
+		Segment3D_t		Segment3D;
+		Segment3Ebis_t		Segment3Ebis;
+		Segment3F_t		Segment3F;
+		Segment3Gbis_t		Segment3Gbis;
+		Segment3H_t		Segment3H;
+		Segment3I_t		Segment3I;
+		Segment3Jbis_t		Segment3Jbis;
+		Segment3Kbis_t		Segment3Kbis;
+		Segment4A_t		Segment4A;
+		Segment4B_t		Segment4B;
+		Segment4C_t		Segment4C;
+		Segment4D_t		Segment4D;
+		Segment4E_t		Segment4E;
+		Segment4F_t		Segment4F;
+		Segment4G_t		Segment4G;
+		Segment4H_t		Segment4H;
+		Segment4I_t		Segment4I;
+		Segment4J_t		Segment4J;
+		Segment4K_t		Segment4K;
+	} u;
+} SystemInformation1_t;
+
+	/* System Information type 2 - [1] 10.1.32 */
+typedef struct {
+	guint8		Protocol_Version;
+	guint8		Block_Type;
+	guint8		Spare;
+} SI2_Block_Header_t;
+
+typedef struct {
+	SI2_Block_Header_t	Block_Header;
+	guint8			SegmentType;
+	union {
+		Segment2A_t		Segment2A;
+		Segment2B_t		Segment2B;
+		Segment3B_t		Segment3B;
+		Segment3E_t		Segment3E;
+		Segment3G_t		Segment3G;
+		Segment3J_t		Segment3J;
+	} u;
+} SystemInformation2_t;
+
+
+/* ------------------------------------------------------------------------ */
+/* CSN1 parsing definitions                                                 */
+/* ------------------------------------------------------------------------ */
+
+/* Segments */
+
+	/* Segment 1A - [3] 11.5.2.66 */
+static const
+CSN_DESCR_BEGIN(Seg1A_SyncInfo_t)
+  M_UINT       (Seg1A_SyncInfo_t, SB_FRAME_TS_OFFSET, 5, &hf_seg1a_syncinfo_sb_frame_ts_offset),
+  M_UINT       (Seg1A_SyncInfo_t, SB_SYMBOL_OFFSET, 6, &hf_seg1a_syncinfo_sb_symbol_offset),
+  M_UINT       (Seg1A_SyncInfo_t, SA_FREQ_OFFSET, 8, &hf_seg1a_syncinfo_sa_freq_offset),
+CSN_DESCR_END  (Seg1A_SyncInfo_t)
+
+static const
+CSN_DESCR_BEGIN(Seg1A_AccessClasses_t)
+ M_UINT        (Seg1A_AccessClasses_t, AC15, 1, &hf_seg1a_rachctrl_acc[15]),
+ M_UINT        (Seg1A_AccessClasses_t, AC14, 1, &hf_seg1a_rachctrl_acc[14]),
+ M_UINT        (Seg1A_AccessClasses_t, AC13, 1, &hf_seg1a_rachctrl_acc[13]),
+ M_UINT        (Seg1A_AccessClasses_t, AC12, 1, &hf_seg1a_rachctrl_acc[12]),
+ M_UINT        (Seg1A_AccessClasses_t, AC11, 1, &hf_seg1a_rachctrl_acc[11]),
+ M_UINT        (Seg1A_AccessClasses_t, EC10, 1, &hf_seg1a_rachctrl_acc[10]),
+ M_UINT        (Seg1A_AccessClasses_t, AC9,  1, &hf_seg1a_rachctrl_acc[9]),
+ M_UINT        (Seg1A_AccessClasses_t, AC8,  1, &hf_seg1a_rachctrl_acc[8]),
+ M_UINT        (Seg1A_AccessClasses_t, AC7,  1, &hf_seg1a_rachctrl_acc[7]),
+ M_UINT        (Seg1A_AccessClasses_t, AC6,  1, &hf_seg1a_rachctrl_acc[6]),
+ M_UINT        (Seg1A_AccessClasses_t, AC5,  1, &hf_seg1a_rachctrl_acc[5]),
+ M_UINT        (Seg1A_AccessClasses_t, AC4,  1, &hf_seg1a_rachctrl_acc[4]),
+ M_UINT        (Seg1A_AccessClasses_t, AC3,  1, &hf_seg1a_rachctrl_acc[3]),
+ M_UINT        (Seg1A_AccessClasses_t, AC2,  1, &hf_seg1a_rachctrl_acc[2]),
+ M_UINT        (Seg1A_AccessClasses_t, AC1,  1, &hf_seg1a_rachctrl_acc[1]),
+ M_UINT        (Seg1A_AccessClasses_t, AC0,  1, &hf_seg1a_rachctrl_acc[0]),
+CSN_DESCR_END  (Seg1A_AccessClasses_t)
+
+static const
+CSN_DESCR_BEGIN(Seg1A_RACHCtrlParams_t)
+ M_UINT        (Seg1A_RACHCtrlParams_t, Max_Retrans, 2, &hf_seg1a_rachctrl_max_retrans),
+ M_TYPE_LABEL  (Seg1A_RACHCtrlParams_t, AccessClasses, Seg1A_AccessClasses_t, "Access Classes"),
+ M_UINT        (Seg1A_RACHCtrlParams_t, CELL_BAR_ACCESS, 1, &hf_seg1a_rachctrl_cell_bar_access),
+CSN_DESCR_END  (Seg1A_RACHCtrlParams_t)
+
+static const
+CSN_DESCR_BEGIN(Seg1A_MiscInfo_t)
+  M_UINT       (Seg1A_MiscInfo_t, SB_RESELECTION_HYSTERESIS, 4, &hf_seg1a_miscinfo_sb_reselection_hysteresis),
+  M_UINT       (Seg1A_MiscInfo_t, Spare, 1, &hf_seg1a_miscinfo_spare),
+  M_UINT       (Seg1A_MiscInfo_t, PriorityAccessInd, 1, &hf_seg1a_miscinfo_priority_access_ind),
+CSN_DESCR_END  (Seg1A_MiscInfo_t)
+
+static const
+CSN_DESCR_BEGIN(Segment1A_t)
+  M_UINT       (Segment1A_t, Class_2_version, 3, &hf_seg1a_class_2_version),
+  M_UINT       (Segment1A_t, Class_3_version, 4, &hf_seg1a_class_3_version),
+  M_TYPE_LABEL (Segment1A_t, SyncInfo, Seg1A_SyncInfo_t, "Synchronization Info Class 1"),
+  M_TYPE_LABEL (Segment1A_t, RACHCtrlParams, Seg1A_RACHCtrlParams_t, "RACH Control Parameters"),
+  M_TYPE_LABEL (Segment1A_t, MiscInfo, Seg1A_MiscInfo_t, "Misc Info Class 1"),
+  M_UINT       (Segment1A_t, GBCH_Present, 1, &hf_seg1a_gbch_present),
+  M_UINT       (Segment1A_t, Test_GS, 1, &hf_seg1a_test_gs),
+  M_UINT       (Segment1A_t, Test_GS2, 1, &hf_seg1a_test_gs2),
+  M_UINT       (Segment1A_t, Spare1, 3, &hf_seg1a_spare1),
+  M_UINT       (Segment1A_t, CELL_BAR_ACCESS_EXTENSION2, 1, &hf_seg1a_cell_bar_access_extension2),
+  M_UINT       (Segment1A_t, Spare2, 5, &hf_seg1a_spare2),
+  M_UINT       (Segment1A_t, CELL_BAR_ACCESS_EXTENSION, 1, &hf_seg1a_cell_bar_access_extension),
+CSN_DESCR_END  (Segment1A_t)
+
+	/* Segment 2A & 2Abis - [1] 11.5.2.67 / 11.5.2.68 */
+static const
+CSN_DESCR_BEGIN(Seg2A_SyncInfo_t)
+  M_UINT       (Seg2A_SyncInfo_t, SA_SIRFN_DELAY, 4, &hf_seg2a_syncinfo_sa_sirfn_delay),
+  M_UINT       (Seg2A_SyncInfo_t, SA_BCCH_STN, 5, &hf_seg2a_syncinfo_sa_bcch_stn),
+  M_UINT       (Seg2A_SyncInfo_t, SuperframeNum, 13, &hf_seg2a_syncinfo_superframe_num),
+  M_UINT       (Seg2A_SyncInfo_t, MultiframeNum, 2, &hf_seg2a_syncinfo_multiframe_num),
+  M_UINT       (Seg2A_SyncInfo_t, MFFN_HighBit, 1, &hf_seg2a_syncinfo_mffn_high_bit),
+CSN_DESCR_END  (Seg2A_SyncInfo_t)
+
+static const
+CSN_DESCR_BEGIN(Seg2A_SelectionCriterion_t)
+  M_UINT       (Seg2A_SelectionCriterion_t, RXLEV_SELECT_MIN, 5, &hf_seg2a_selcrit_rxlev_select_min),
+CSN_DESCR_END  (Seg2A_SelectionCriterion_t)
+
+static const
+CSN_DESCR_BEGIN(Seg2A_MiscInfo_t)
+  M_UINT       (Seg2A_MiscInfo_t, SB_SELECTION_POWER, 4, &hf_seg2a_miscinfo_sb_selection_power),
+CSN_DESCR_END  (Seg2A_MiscInfo_t)
+
+static const
+CSN_DESCR_BEGIN(Seg2A_LAInfo_t)
+  M_UINT       (Seg2A_LAInfo_t, SA_PCH_CONFIG, 2, &hf_seg2a_lainfo_sa_pch_config),
+  M_UINT       (Seg2A_LAInfo_t, SA_BACH_CONFIG, 8, &hf_seg2a_lainfo_sa_bach_config),
+  M_UINT       (Seg2A_LAInfo_t, RACH_TS_OFFSET, 5, &hf_seg2a_lainfo_rach_ts_offset),
+  M_UINT       (Seg2A_LAInfo_t, N_Page_Occurrences, 2, &hf_seg2a_lainfo_n_page_occurrences),
+  M_UINT       (Seg2A_LAInfo_t, IMSI_attach_detach_ind, 1, &hf_seg2a_lainfo_imsi_attach_detach_ind),
+  M_UINT       (Seg2A_LAInfo_t, ECSC_ind, 1, &hf_seg2a_lainfo_ecsc_indication),
+  M_UINT       (Seg2A_LAInfo_t, SI_update_ind, 1, &hf_seg2a_lainfo_si_update_ind),
+CSN_DESCR_END  (Seg2A_LAInfo_t)
+
+static const
+CSN_DESCR_BEGIN(Segment2A_t)
+  M_FIXED_LABEL(Segment2A_t, 2, 0x2, "Class type: 2", &hf_seg2a_class_type),
+  M_FIXED_LABEL(Segment2A_t, 4, 0x0, "Segment type: A", &hf_seg2a_segment_type_a),
+  M_UINT       (Segment2A_t, Class_4_version, 3, &hf_seg2a_class_4_version),
+  M_TYPE_LABEL (Segment2A_t, SyncInfo, Seg2A_SyncInfo_t, "Synchronization Info Class 2"),
+  M_TYPE_LABEL (Segment2A_t, SelectionCriterion, Seg2A_SelectionCriterion_t, "Selection Criterion"),
+  M_TYPE_LABEL (Segment2A_t, MiscInfo, Seg2A_MiscInfo_t, "Misc Info Class 2"),
+  M_TYPE_LABEL (Segment2A_t, LAInfo, Seg2A_LAInfo_t, "LA Info Class 2"),
+CSN_DESCR_END  (Segment2A_t)
+
+static const
+CSN_DESCR_BEGIN(Segment2Abis_t)
+  M_FIXED_LABEL(Segment2Abis_t, 2, 0x2, "Class type: 2", &hf_seg2a_class_type),
+  M_FIXED_LABEL(Segment2Abis_t, 4, 0x0, "Segment type: Abis", &hf_seg2a_segment_type_abis),
+  M_UINT       (Segment2Abis_t, Class_4_version, 3, &hf_seg2a_class_4_version),
+  M_TYPE_LABEL (Segment2Abis_t, SyncInfo, Seg2A_SyncInfo_t, "Synchronization Info Class 2"),
+  M_TYPE_LABEL (Segment2Abis_t, SelectionCriterion, Seg2A_SelectionCriterion_t, "Selection Criterion"),
+  M_TYPE_LABEL (Segment2Abis_t, MiscInfo, Seg2A_MiscInfo_t, "Misc Info Class 2"),
+  M_TYPE_LABEL (Segment2Abis_t, LAInfo, Seg2A_LAInfo_t, "LA Info Class 2"),
+CSN_DESCR_END  (Segment2Abis_t)
+
+static const
+CSN_DESCR_BEGIN(Segment2B_t)
+  M_FIXED_LABEL(Segment2B_t, 2, 0x2, "Class type: 2", &hf_seg2a_class_type),
+  M_FIXED_LABEL(Segment2B_t, 4, 0x1, "Segment type: B", &hf_seg2b_segment_type_b),
+CSN_DESCR_END  (Segment2B_t)
+
+static const
+CSN_DESCR_BEGIN(Segment2Bbis_t)
+  M_FIXED_LABEL(Segment2Bbis_t, 2, 0x2, "Class type: 2", &hf_seg2a_class_type),
+  M_FIXED_LABEL(Segment2Bbis_t, 4, 0x1, "Segment type: B bis", &hf_seg2b_segment_type_bbis),
+CSN_DESCR_END  (Segment2Bbis_t)
+
+	/* Segment 3A - [1] 11.5.2.71 */
+static gint16
+Seg3A_LAI_Dissector(proto_tree *tree, csnStream_t* ar, tvbuff_t *tvb, void* data, int ett_csn1)
+{
+	Seg3A_LAI_t *LAI = (Seg3A_LAI_t *)data;
+	proto_item *lac_item;
+	proto_tree *lac_tree;
+	guint8 c[5];
+	int i;
+
+	if (ar->remaining_bits_len < 5*8)
+		return -1;
+
+	for (i=0; i<5; i++)
+		c[i] = tvb_get_bits8(tvb, ar->bit_offset + (i<<3), 8);
+
+	LAI->MCC = (c[0] & 0xf) * 100 + ((c[0] & 0xf0) >> 4) * 10 + (c[1] & 0xf);
+	LAI->MNC = (c[2] & 0xf) *  10 + ((c[2] & 0xf0) >> 4);
+
+	LAI->LAC = (c[3] << 8) | c[4];
+	LAI->MSC_ID = (LAI->LAC >> 10) & 0x3f;
+	LAI->Spot_Beam_ID = LAI->LAC & 0x03ff;
+
+	proto_tree_add_uint_bits_format_value(tree, hf_seg3a_lai_mcc, tvb, ar->bit_offset, 16, (guint32)LAI->MCC, ENC_BIG_ENDIAN, "%d", LAI->MCC);
+	proto_tree_add_uint_bits_format_value(tree, hf_seg3a_lai_mnc, tvb, ar->bit_offset+16, 8, (guint32)LAI->MNC, ENC_BIG_ENDIAN, "%d", LAI->MNC);
+
+	lac_item = proto_tree_add_uint_bits_format_value(tree, hf_seg3a_lai_lac, tvb, ar->bit_offset+24, 16, (guint32)LAI->LAC, ENC_BIG_ENDIAN, "0x%04x", LAI->LAC);
+	lac_tree = proto_item_add_subtree(lac_item, ett_csn1);
+
+	proto_tree_add_uint_bits_format_value(lac_tree, hf_seg3a_lai_msc_id, tvb, ar->bit_offset+24, 6, (guint32)LAI->MSC_ID, ENC_BIG_ENDIAN, "%d", LAI->MSC_ID);
+	proto_tree_add_uint_bits_format_value(lac_tree, hf_seg3a_lai_spot_beam_id, tvb, ar->bit_offset+30, 10, (guint32)LAI->Spot_Beam_ID, ENC_BIG_ENDIAN, "%d", LAI->Spot_Beam_ID);
+
+	ar->remaining_bits_len -= 5*8;
+	ar->bit_offset += 5*8;
+
+	return 0;
+}
+
+static const
+CSN_DESCR_BEGIN(Seg3A_System_t)
+  M_UINT       (Seg3A_System_t, Satellite_ID, 2, &hf_seg3a_system_sat_id),
+  M_UINT       (Seg3A_System_t, System_ID, 4, &hf_seg3a_system_sys_id),
+CSN_DESCR_END  (Seg3A_System_t)
+
+static const
+CSN_DESCR_BEGIN(Seg3A_SatellitePosition_t)
+  M_UINT       (Seg3A_SatellitePosition_t, Latitude, 8, &hf_seg3a_satpos_latitude),
+  M_UINT       (Seg3A_SatellitePosition_t, Longitude, 12, &hf_seg3a_satpos_longitude),
+  M_UINT       (Seg3A_SatellitePosition_t, Radius, 16, &hf_seg3a_satpos_radius),
+CSN_DESCR_END  (Seg3A_SatellitePosition_t)
+
+static const
+CSN_DESCR_BEGIN(Seg3A_BeamPosition_t)
+  M_UINT       (Seg3A_BeamPosition_t, Latitude, 11, &hf_seg3a_beam_latitude),
+  M_UINT       (Seg3A_BeamPosition_t, Longitude, 12, &hf_seg3a_beam_longitude),
+CSN_DESCR_END  (Seg3A_BeamPosition_t)
+
+static const
+CSN_DESCR_BEGIN(Seg3A_MiscInfo_t)
+  M_UINT       (Seg3A_MiscInfo_t, SB_RESELECTION_TIMER, 6, &hf_seg3a_miscinfo_sb_reselection_timer),
+CSN_DESCR_END  (Seg3A_MiscInfo_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3A_t)
+  M_FIXED_LABEL(Segment3A_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3A_t, 4, 0x0, "Segment type: A", &hf_seg3a_segment_type_a),
+  M_SERIALIZE  (Segment3A_t, LAI, 0, &hf_seg3a_lai_dissector, Seg3A_LAI_Dissector),
+  M_TYPE_LABEL (Segment3A_t, System, Seg3A_System_t, "System"),
+  M_TYPE_LABEL (Segment3A_t, SatellitePosition, Seg3A_SatellitePosition_t, "Satellite Position"),
+  M_TYPE_LABEL (Segment3A_t, BeamPosition, Seg3A_BeamPosition_t, "Beam Center Position"),
+  M_TYPE_LABEL (Segment3A_t, MiscInfo, Seg3A_MiscInfo_t, "Misc Info Class 3"),
+  M_UINT       (Segment3A_t, Spare, 4, &hf_seg3a_spare),
+CSN_DESCR_END  (Segment3A_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3B_t)
+  M_FIXED_LABEL(Segment3B_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3B_t, 4, 0x1, "Segment type: B", &hf_seg3b_segment_type_b),
+CSN_DESCR_END  (Segment3B_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3Bbis_t)
+  M_FIXED_LABEL(Segment3Bbis_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3Bbis_t, 4, 0x1, "Segment type: B bis", &hf_seg3b_segment_type_bbis),
+CSN_DESCR_END  (Segment3Bbis_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3C_t)
+  M_FIXED_LABEL(Segment3C_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3C_t, 4, 0x2, "Segment type: C", &hf_seg3c_segment_type_c),
+CSN_DESCR_END  (Segment3C_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3D_t)
+  M_FIXED_LABEL(Segment3D_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3D_t, 4, 0x3, "Segment type: D", &hf_seg3d_segment_type_d),
+CSN_DESCR_END  (Segment3D_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3E_t)
+  M_FIXED_LABEL(Segment3E_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3E_t, 4, 0x4, "Segment type: E", &hf_seg3e_segment_type_e),
+CSN_DESCR_END  (Segment3E_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3Ebis_t)
+  M_FIXED_LABEL(Segment3Ebis_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3Ebis_t, 4, 0x4, "Segment type: E bis", &hf_seg3e_segment_type_ebis),
+CSN_DESCR_END  (Segment3Ebis_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3F_t)
+  M_FIXED_LABEL(Segment3F_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3F_t, 4, 0x5, "Segment type: F", &hf_seg3f_segment_type_f),
+CSN_DESCR_END  (Segment3F_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3G_t)
+  M_FIXED_LABEL(Segment3G_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3G_t, 4, 0x6, "Segment type: G", &hf_seg3g_segment_type_g),
+CSN_DESCR_END  (Segment3G_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3Gbis_t)
+  M_FIXED_LABEL(Segment3Gbis_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3Gbis_t, 4, 0x6, "Segment type: G bis", &hf_seg3g_segment_type_gbis),
+CSN_DESCR_END  (Segment3Gbis_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3H_t)
+  M_FIXED_LABEL(Segment3H_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3H_t, 4, 0x7, "Segment type: H", &hf_seg3h_segment_type_h),
+CSN_DESCR_END  (Segment3H_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3I_t)
+  M_FIXED_LABEL(Segment3I_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3I_t, 4, 0x9, "Segment type: I", &hf_seg3i_segment_type_i),
+CSN_DESCR_END  (Segment3I_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3J_t)
+  M_FIXED_LABEL(Segment3J_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3J_t, 4, 0xa, "Segment type: J", &hf_seg3j_segment_type_j),
+CSN_DESCR_END  (Segment3J_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3Jbis_t)
+  M_FIXED_LABEL(Segment3Jbis_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3Jbis_t, 4, 0xa, "Segment type: J bis", &hf_seg3j_segment_type_jbis),
+CSN_DESCR_END  (Segment3Jbis_t)
+
+static const
+CSN_DESCR_BEGIN(Segment3Kbis_t)
+  M_FIXED_LABEL(Segment3Kbis_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3Kbis_t, 4, 0xb, "Segment type: K bis", &hf_seg3k_segment_type_kbis),
+CSN_DESCR_END  (Segment3Kbis_t)
+
+#if 0
+static const
+CSN_DESCR_BEGIN(Segment3L_t)
+  M_FIXED_LABEL(Segment3L_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3L_t, 4, 0xc, "Segment type: L", &hf_seg3l_segment_type_l),
+CSN_DESCR_END  (Segment3L_t)
+#endif
+
+#if 0
+static const
+CSN_DESCR_BEGIN(Segment3M_t)
+  M_FIXED_LABEL(Segment3M_t, 1, 0x0, "Class type: 3", &hf_seg3a_class_type),
+  M_FIXED_LABEL(Segment3M_t, 4, 0xd, "Segment type: M", &hf_seg3m_segment_type_m),
+CSN_DESCR_END  (Segment3M_t)
+#endif
+
+static const
+CSN_DESCR_BEGIN(Segment4A_t)
+  M_FIXED_LABEL(Segment4A_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4A_t, 4, 0x0, "Segment type: A", &hf_seg4a_segment_type_a),
+CSN_DESCR_END  (Segment4A_t)
+
+static const
+CSN_DESCR_BEGIN(Segment4B_t)
+  M_FIXED_LABEL(Segment4B_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4B_t, 4, 0x1, "Segment type: B", &hf_seg4b_segment_type_b),
+CSN_DESCR_END  (Segment4B_t)
+
+static const
+CSN_DESCR_BEGIN(Segment4C_t)
+  M_FIXED_LABEL(Segment4C_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4C_t, 4, 0x2, "Segment type: C", &hf_seg4c_segment_type_c),
+CSN_DESCR_END  (Segment4C_t)
+
+static const
+CSN_DESCR_BEGIN(Segment4D_t)
+  M_FIXED_LABEL(Segment4D_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4D_t, 4, 0x3, "Segment type: D", &hf_seg4d_segment_type_d),
+CSN_DESCR_END  (Segment4D_t)
+
+static const
+CSN_DESCR_BEGIN(Segment4E_t)
+  M_FIXED_LABEL(Segment4E_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4E_t, 4, 0x4, "Segment type: E", &hf_seg4e_segment_type_e),
+CSN_DESCR_END  (Segment4E_t)
+
+static const
+CSN_DESCR_BEGIN(Segment4F_t)
+  M_FIXED_LABEL(Segment4F_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4F_t, 4, 0x5, "Segment type: F", &hf_seg4f_segment_type_f),
+CSN_DESCR_END  (Segment4F_t)
+
+static const
+CSN_DESCR_BEGIN(Segment4G_t)
+  M_FIXED_LABEL(Segment4G_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4G_t, 4, 0x6, "Segment type: G", &hf_seg4g_segment_type_g),
+CSN_DESCR_END  (Segment4G_t)
+
+static const
+CSN_DESCR_BEGIN(Segment4H_t)
+  M_FIXED_LABEL(Segment4H_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4H_t, 4, 0x7, "Segment type: H", &hf_seg4h_segment_type_h),
+CSN_DESCR_END  (Segment4H_t)
+
+static const
+CSN_DESCR_BEGIN(Segment4I_t)
+  M_FIXED_LABEL(Segment4I_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4I_t, 4, 0x8, "Segment type: I", &hf_seg4i_segment_type_i),
+CSN_DESCR_END  (Segment4I_t)
+
+static const
+CSN_DESCR_BEGIN(Segment4J_t)
+  M_FIXED_LABEL(Segment4J_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4J_t, 4, 0x9, "Segment type: J", &hf_seg4j_segment_type_j),
+CSN_DESCR_END  (Segment4J_t)
+
+static const
+CSN_DESCR_BEGIN(Segment4K_t)
+  M_FIXED_LABEL(Segment4K_t, 3, 0x6, "Class type: 4", &hf_seg4a_class_type),
+  M_FIXED_LABEL(Segment4K_t, 4, 0xa, "Segment type: K", &hf_seg4k_segment_type_k),
+CSN_DESCR_END  (Segment4K_t)
+
+
+/* System information */
+
+	/* System Information type 1 - [1] 10.1.31 */
+
+static const
+CSN_DESCR_BEGIN(SI1_Block_Header_t)
+  M_UINT       (SI1_Block_Header_t, Protocol_Version, 4, &hf_si_protocol_version),
+  M_UINT       (SI1_Block_Header_t, Block_Type, 1, &hf_si_block_type),
+  M_UINT       (SI1_Block_Header_t, Randomization_Period, 2, &hf_si1_randomization_period),
+  M_UINT       (SI1_Block_Header_t, Spare, 1, &hf_si_spare),
+CSN_DESCR_END  (SI1_Block_Header_t)
+
+static const
+CSN_ChoiceElement_t SI1_SegmentChoice[] =
+{
+  {6, 0x20, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment2Abis, Segment2Abis_t, "Segment 2A bis")},
+  {6, 0x21, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment2Bbis, Segment2Bbis_t, "Segment 2B bis")},
+  {5, 0x00, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3A,    Segment3A_t,    "Segment 3A")},
+  {5, 0x01, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Bbis, Segment3Bbis_t, "Segment 3B bis")},
+  {5, 0x02, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3C,    Segment3C_t,    "Segment 3C")},
+  {5, 0x03, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3D,    Segment3D_t,    "Segment 3D")},
+  {5, 0x04, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Ebis, Segment3Ebis_t, "Segment 3E bis")},
+  {5, 0x05, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3F,    Segment3F_t,    "Segment 3F")},
+  {5, 0x06, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Gbis, Segment3Gbis_t, "Segment 3G bis")},
+  {5, 0x07, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3H,    Segment3H_t,    "Segment 3H")},
+  {5, 0x09, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3I,    Segment3I_t,    "Segment 3I")},
+  {5, 0x0a, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Jbis, Segment3Jbis_t, "Segment 3J bis")},
+  {5, 0x0b, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Kbis, Segment3Kbis_t, "Segment 3K bis")},
+  {7, 0x60, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4A,    Segment4A_t,    "Segment 4A")},
+  {7, 0x61, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4B,    Segment4B_t,    "Segment 4B")},
+  {7, 0x62, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4C,    Segment4C_t,    "Segment 4C")},
+  {7, 0x63, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4D,    Segment4D_t,    "Segment 4D")},
+  {7, 0x64, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4E,    Segment4E_t,    "Segment 4E")},
+  {7, 0x65, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4F,    Segment4F_t,    "Segment 4F")},
+  {7, 0x66, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4G,    Segment4G_t,    "Segment 4G")},
+  {7, 0x67, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4H,    Segment4H_t,    "Segment 4H")},
+  {7, 0x68, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4I,    Segment4I_t,    "Segment 4I")},
+  {7, 0x69, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4J,    Segment4J_t,    "Segment 4J")},
+  {7, 0x6a, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4K,    Segment4K_t,    "Segment 4K")},
+  {0, 0x00, 1, CSN_ERROR(SystemInformation1_t, "Unknown segment !", -1, &ei_unknown_segment)},
+};
+
+static const
+CSN_DESCR_BEGIN(SystemInformation1_t)
+  M_TYPE_LABEL (SystemInformation1_t, Block_Header, SI1_Block_Header_t, "Block Header"),
+  M_TYPE_LABEL (SystemInformation1_t, Segment1A, Segment1A_t, "Segment 1A"),
+  M_CHOICE_IL  (SystemInformation1_t, SegmentType, SI1_SegmentChoice, ElementsOf(SI1_SegmentChoice), &hf_si1_segment_choice),
+CSN_DESCR_END  (SystemInformation1_t)
+
+	/* System Information type 2 - [1] 10.1.32 */
+
+static CSN_DESCR_BEGIN(SI2_Block_Header_t)
+  M_UINT       (SI2_Block_Header_t, Protocol_Version, 4, &hf_si_protocol_version),
+  M_UINT       (SI2_Block_Header_t, Block_Type, 1, &hf_si_block_type),
+  M_UINT       (SI2_Block_Header_t, Spare, 3, &hf_si_spare),
+CSN_DESCR_END  (SI2_Block_Header_t)
+
+static const
+CSN_ChoiceElement_t SI2_SegmentChoice[] =
+{
+  {6, 0x20, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment2A, Segment2A_t, "Segment 2A")},
+  {6, 0x21, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment2B, Segment2B_t, "Segment 2B")},
+  {5, 0x01, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3B, Segment3B_t, "Segment 3B")},
+  {5, 0x04, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3E, Segment3E_t, "Segment 3E")},
+  {5, 0x06, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3G, Segment3G_t, "Segment 3G")},
+  {5, 0x0a, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3J, Segment3J_t, "Segment 3J")},
+  {0, 0x00, 1, CSN_ERROR(SystemInformation2_t, "Unknown segment !", -1, &ei_unknown_segment)},
+};
+
+static const
+CSN_DESCR_BEGIN(SystemInformation2_t)
+  M_TYPE_LABEL (SystemInformation2_t, Block_Header, SI2_Block_Header_t, "Block Header"),
+  M_CHOICE_IL  (SystemInformation2_t, SegmentType, SI2_SegmentChoice, ElementsOf(SI2_SegmentChoice), &hf_si1_segment_choice),
+CSN_DESCR_END  (SystemInformation2_t)
+
+
+/* ------------------------------------------------------------------------ */
+/* Fields values                                                            */
+/* ------------------------------------------------------------------------ */
+
+/* Common stuff */
+static void
+segx_half_db_value_fmt(gchar *s, guint32 v)
+{
+	snprintf(s, ITEM_LABEL_LENGTH, "%2.1f dB (%u)", v * 0.5f, v);
+}
+
+/* Segment 1A - [3] 11.5.2.66 */
+static void
+seg1a_syncinfo_sa_freq_offset_fmt(gchar *s, guint32 v)
+{
+	gint32 sv = (gint32)v;
+	snprintf(s, ITEM_LABEL_LENGTH, "%d Hz (%d)", sv * 5, sv);
+}
+
+static const value_string seg1a_rachctrl_acc_vals[] = {
+	{  0, "not barred (allowed)"},
+	{  1, "barred (not allowed)"},
+	{  0, NULL }
+};
+
+static const value_string seg1a_rachctrl_cell_bar_access_vals[] = {
+	{  0, "The cell is not barred"},
+	{  1, "The cell is barred"},
+	{  0, NULL }
+};
+
+/* Segment 2A & 2Abis - [1] 11.5.2.67 & 11.5.2.68 */
+static const value_string seg2a_lainfo_imsi_attach_detach_ind_vals[] = {
+	{  0, "MESs shall NOT apply IMSI attach and detach procedure for this LA"},
+	{  1, "MESs shall apply IMSI attach and detach procedure for this LA"},
+	{  0, NULL }
+};
+
+static const value_string seg2a_lainfo_ecsc_indication_vals[] = {
+	{  0, "Early sending is explicitly prohibited"},
+	{  1, "Early sending is explicitly accepted"},
+	{  0, NULL }
+};
+
+/* Segment 3A - [1] 11.5.2.71 */
+static void
+seg3a_latitude_fmt(gchar *s, guint32 v)
+{
+	gint32 sv = (gint32)v;
+	char c;
+
+	if (sv < 0) {
+		c = 'S';
+		sv = -sv;
+	} else
+		c = 'N';
+
+	snprintf(s, ITEM_LABEL_LENGTH, "%.1f %c (%d)", sv / 10.0f, c, sv);
+}
+
+static void
+seg3a_longitude_fmt(gchar *s, guint32 v)
+{
+	gint32 sv;
+	char c;
+
+	if (v < 1800) {
+		c = 'W';
+		sv = v;
+	} else {
+		c = 'E';
+		sv = 3600 - v;
+	}
+
+	snprintf(s, ITEM_LABEL_LENGTH, "%.1f %c (%u)", sv / 10.0f, c, v);
+}
+
+static void
+seg3a_satpos_radius_fmt(gchar *s, guint32 v)
+{
+	gint32 sv = (gint32)v;
+	gint32 a = (42162 * 1000) + (sv * 5);
+	snprintf(s, ITEM_LABEL_LENGTH, "%.3lf km (%u)", a / 1000.0, sv);
+}
+
+static void
+seg3a_miscinfo_sb_reselection_timer_fmt(gchar *s, guint32 v)
+{
+	snprintf(s, ITEM_LABEL_LENGTH, "%d minutes (%u)", v*4, v);
+}
+
+/* System Information 1 - [1] 10.3.31 */
+static const value_string si1_randomization_period_vals[] = {
+	{ 0, "7 frames after this SI block" },
+	{ 1, "15 frames after this SI block" },
+	{ 2, "23 frames after this SI block" },
+	{ 3, "31 frames after this SI block" },
+	{ 0, NULL }
+};
+
+
+/* ------------------------------------------------------------------------ */
+/* Dissector code                                                           */
+/* ------------------------------------------------------------------------ */
+
+static int
+dissect_gmr1_bcch(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* dissector_data _U_)
+{
+	proto_item  *bcch_item = NULL;
+	proto_tree  *bcch_tree = NULL;
+	csnStream_t  ar;
+	gboolean     is_si1;
+
+	col_append_str(pinfo->cinfo, COL_INFO, "(BCCH) ");
+
+	is_si1 = tvb_get_bits8(tvb, 0, 5) & 1;
+
+	bcch_item =  proto_tree_add_protocol_format(
+		tree, proto_gmr1_bcch, tvb, 0, -1,
+		"GMR-1 BCCH - System Information type %d", is_si1 ? 1 : 2
+	);
+	bcch_tree = proto_item_add_subtree(bcch_item, ett_gmr1_bcch);
+
+	csnStreamInit(&ar, 0, tvb_captured_length(tvb)*8, pinfo);
+
+	/* SI1 or SI2 */
+	if (is_si1) {
+		SystemInformation1_t *data;
+		data = wmem_new(pinfo->pool, SystemInformation1_t);
+		/* Initialize the type to the last element, which is an
+		 * "Unknown", in case the dissector bails before getting this
+		 * far. */
+		data->SegmentType = array_length(SI1_SegmentChoice) - 1;
+		csnStreamDissector(bcch_tree, &ar, CSNDESCR(SystemInformation1_t), tvb, data, ett_gmr1_bcch);
+		col_append_fstr(
+			pinfo->cinfo, COL_INFO,
+			"System Information 1: Segment 1A, %s",
+			SI1_SegmentChoice[data->SegmentType].descr.sz
+		);
+	} else {
+		SystemInformation2_t *data;
+		data = wmem_new(pinfo->pool, SystemInformation2_t);
+		/* Initialize the type to the last element, which is an
+		 * "Unknown", in case the dissector bails before getting this
+		 * far. */
+		data->SegmentType = array_length(SI2_SegmentChoice) - 1;
+		csnStreamDissector(bcch_tree, &ar, CSNDESCR(SystemInformation2_t), tvb, data, ett_gmr1_bcch);
+		col_append_fstr(
+			pinfo->cinfo, COL_INFO,
+			"System Information 2: %s",
+			SI2_SegmentChoice[data->SegmentType].descr.sz
+		);
+	}
+
+	return tvb_captured_length(tvb);
+}
+
+void
+proto_register_gmr1_bcch(void)
+{
+	static hf_register_info hf[] = {
+		/* Segment 1A - [3] 11.5.2.66 */
+		{ &hf_seg1a_class_2_version,
+		  { "Class 2 version", "gmr1.bcch.seg1a.class_2_version",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Version number for current Class 2 information", HFILL }
+		},
+		{ &hf_seg1a_class_3_version,
+		  { "Class 3 version", "gmr1.bcch.seg1a.class_3_version",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Version number for current Class 3 information", HFILL }
+		},
+		{ &hf_seg1a_syncinfo_sb_frame_ts_offset,
+		  { "SB_FRAME_TS_OFFSET", "gmr1.bcch.seg1a.syncinfo.sb_frame_ts_offset",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_syncinfo_sb_symbol_offset,
+		  { "SB_SYMBOL_OFFSET", "gmr1.bcch.seg1a.syncinfo.sb_symbol_offset",
+		    FT_INT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_syncinfo_sa_freq_offset,
+		  { "SA_FREQ_OFFSET", "gmr1.bcch.seg1a.syncinfo.sa_freq_offset",
+		    FT_UINT8, BASE_CUSTOM, CF_FUNC(seg1a_syncinfo_sa_freq_offset_fmt), 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_rachctrl_max_retrans,
+		  { "Max Retrans", "gmr1.bcch.seg1a.rachctrl.max_retrans",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[15],
+		  { "AC15", "gmr1.bcch.seg1a.rachctrl.ac15",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 15 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[14],
+		  { "AC14", "gmr1.bcch.seg1a.rachctrl.ac14",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 14 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[13],
+		  { "AC13", "gmr1.bcch.seg1a.rachctrl.ac13",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 13 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[12],
+		  { "AC12", "gmr1.bcch.seg1a.rachctrl.ac12",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 12 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[11],
+		  { "AC11", "gmr1.bcch.seg1a.rachctrl.ac11",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 11 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[10],
+		  { "EC10", "gmr1.bcch.seg1a.rachctrl.ac10",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Emergency Class 10 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[9],
+		  { "AC9", "gmr1.bcch.seg1a.rachctrl.ac9",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 9 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[8],
+		  { "AC8", "gmr1.bcch.seg1a.rachctrl.ac8",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 8 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[7],
+		  { "AC7", "gmr1.bcch.seg1a.rachctrl.ac7",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 7 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[6],
+		  { "AC6", "gmr1.bcch.seg1a.rachctrl.ac6",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 6 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[5],
+		  { "AC5", "gmr1.bcch.seg1a.rachctrl.ac5",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 5 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[4],
+		  { "AC4", "gmr1.bcch.seg1a.rachctrl.ac4",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 4 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[3],
+		  { "AC3", "gmr1.bcch.seg1a.rachctrl.ac3",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 3 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[2],
+		  { "AC2", "gmr1.bcch.seg1a.rachctrl.ac2",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 2 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[1],
+		  { "AC1", "gmr1.bcch.seg1a.rachctrl.ac1",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 1 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_acc[0],
+		  { "AC0", "gmr1.bcch.seg1a.rachctrl.ac0",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
+		    "Access Class 0 barred", HFILL }
+		},
+		{ &hf_seg1a_rachctrl_cell_bar_access,
+		  { "CELL_BAR_ACCESS", "gmr1.bcch.seg1a.rachctrl.cell_bar_access",
+		    FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_cell_bar_access_vals), 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_miscinfo_sb_reselection_hysteresis,
+		  { "SB_RESELECTION_HYSTERESIS", "gmr1.bcch.seg1a.miscinfo.sb_reselection_hysteresis",
+		    FT_UINT8, BASE_CUSTOM, CF_FUNC(segx_half_db_value_fmt), 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_miscinfo_spare,
+		  { "Spare", "gmr1.bcch.seg1a.miscinfo.spare",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_miscinfo_priority_access_ind,
+		  { "Priority Access Ind", "gmr1.bcch.seg1a.miscinfo.priority_access_ind",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Reserved for future use", HFILL }
+		},
+		{ &hf_seg1a_gbch_present,
+		  { "GBCH Present", "gmr1.bcch.seg1a.gbch_present",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_test_gs,
+		  { "Test GS", "gmr1.bcch.seg1a.test_gs",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_test_gs2,
+		  { "Test GS2", "gmr1.bcch.seg1a.test_gs2",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_spare1,
+		  { "Spare", "gmr1.bcch.seg1a.spare1",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_cell_bar_access_extension2,
+		  { "CELL_BAR_ACCESS_EXTENSION2", "gmr1.bcch.seg1a.cell_bar_access_extension2",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_spare2,
+		  { "Spare", "gmr1.bcch.seg1a.spare2",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg1a_cell_bar_access_extension,
+		  { "CELL_BAR_ACCESS_EXTENSION", "gmr1.bcch.seg1a.cell_bar_access_extension",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+
+		/* Segment 2A - [1] 11.5.2.67 */
+		{ &hf_seg2a_class_4_version,
+		  { "Class 4 version", "gmr1.bcch.seg2a.class_4_version",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Version number for current Class 4 information", HFILL }
+		},
+		{ &hf_seg2a_syncinfo_sa_sirfn_delay,
+		  { "SA_SIRFN_DELAY", "gmr1.bcch.seg2a.syncinfo.sa_sirfn_delay",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Delay of system information relative to superframe", HFILL }
+		},
+		{ &hf_seg2a_syncinfo_sa_bcch_stn,
+		  { "SA_BCCH_STN", "gmr1.bcch.seg2a.syncinfo.sa_bcch_stn",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Starting timeslot number", HFILL }
+		},
+		{ &hf_seg2a_syncinfo_superframe_num,
+		  { "Superframe Number", "gmr1.bcch.seg2a.syncinfo.superframe_num",
+		    FT_UINT16, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg2a_syncinfo_multiframe_num,
+		  { "Multiframe Number", "gmr1.bcch.seg2a.syncinfo.multiframe_num",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Multiframe number in a superframe", HFILL }
+		},
+		{ &hf_seg2a_syncinfo_mffn_high_bit,
+		  { "MFFN high bit", "gmr1.bcch.seg2a.syncinfo.mffn_high_bit",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "High bit of the TDMA FN in a multiframe", HFILL }
+		},
+		{ &hf_seg2a_selcrit_rxlev_select_min,
+		  { "RXLEV_SELECT_MIN", "gmr1.bcch.seg2a.selcrit.rxlev_select_min",
+		    FT_UINT8, BASE_CUSTOM, CF_FUNC(segx_half_db_value_fmt), 0x00,
+		    "Adjustment to threshold to camp-on system", HFILL }
+		},
+		{ &hf_seg2a_miscinfo_sb_selection_power,
+		  { "SB_SELECTION_POWER", "gmr1.bcch.seg2a.miscinfo.sb_selection_power",
+		    FT_UINT8, BASE_CUSTOM, CF_FUNC(segx_half_db_value_fmt), 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg2a_lainfo_sa_pch_config,
+		  { "SA_PCH_CONFIG", "gmr1.bcch.seg2a.lainfo.sa_pch_config",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Paging group configuration information", HFILL }
+		},
+		{ &hf_seg2a_lainfo_sa_bach_config,
+		  { "SA_BACH_CONFIG", "gmr1.bcch.seg2a.lainfo.sa_bach_config",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Alerting group configuration information", HFILL }
+		},
+		{ &hf_seg2a_lainfo_rach_ts_offset,
+		  { "RACH_TS_OFFSET", "gmr1.bcch.seg2a.lainfo.rach_ts_offset",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Start of RACH window with respect to BCCH", HFILL }
+		},
+		{ &hf_seg2a_lainfo_n_page_occurrences,
+		  { "N Page Occurrences", "gmr1.bcch.seg2a.lainfo.n_page_occurrences",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Number of times a page shall be retransmitted after the initial transmission", HFILL }
+		},
+		{ &hf_seg2a_lainfo_imsi_attach_detach_ind,
+		  { "IMSI attach-detach ind", "gmr1.bcch.seg2a.lainfo.imsi_attach_detach_ind",
+		    FT_UINT8, BASE_DEC, VALS(seg2a_lainfo_imsi_attach_detach_ind_vals), 0x00,
+		    "Should MESs apply IMSI attach and detach procedure for this LA", HFILL }
+		},
+		{ &hf_seg2a_lainfo_ecsc_indication,
+		  { "ECSC indication", "gmr1.bcch.seg2a.lainfo.ecsc_indication",
+		    FT_UINT8, BASE_DEC, VALS(seg2a_lainfo_ecsc_indication_vals), 0x00,
+		    "Early Classmark Sending Control", HFILL }
+		},
+		{ &hf_seg2a_lainfo_si_update_ind,
+		  { "SI update ind", "gmr1.bcch.seg2a.lainfo.si_update_ind",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    "Flag for BACH reorganization. Value changes after each reorganization", HFILL }
+		},
+		{ &hf_seg2a_class_type,
+		  { "Class type: 2", "gmr1.bcch.seg2a.class_type",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg2a_segment_type_a,
+		  { "Segment type: A", "gmr1.bcch.seg2a.segment_type_a",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg2a_segment_type_abis,
+		  { "Segment type: Abis", "gmr1.bcch.seg2a.segment_type_abis",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg2b_segment_type_b,
+		  { "Segment type: B", "gmr1.bcch.seg2b.segment_type_b",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg2b_segment_type_bbis,
+		  { "Segment type: B bis", "gmr1.bcch.seg2b.segment_type_bbis",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+
+		/* Segment 3A - [1] 11.5.2.71 */
+		{ &hf_seg3a_class_type,
+		  { "Class type: 3", "gmr1.bcch.seg3a.class_type",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_segment_type_a,
+		  { "Segment type: A", "gmr1.bcch.seg3a.segment_type_a",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_lai_dissector,
+		  { "LAI Dissector length", "gmr1.bcch.seg3a.lai_dissector",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_lai_mcc,
+		  { "Mobile Country Code (MCC)", "gmr1.bcch.seg3a.lai.mcc",
+		    FT_UINT16, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_lai_mnc,
+		  { "Mobile Network Code (MNC)", "gmr1.bcch.seg3a.lai.mnc",
+		    FT_UINT16, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_lai_lac,
+		  { "Location Area Code (LAC)", "gmr1.bcch.seg3a.lai.lac",
+		    FT_UINT16, BASE_HEX, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_lai_msc_id,
+		  { "MSC ID", "gmr1.bcch.seg3a.lai.msc_id",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_lai_spot_beam_id,
+		  { "Spot Beam ID", "gmr1.bcch.seg3a.lai.spot_beam_id",
+		    FT_UINT16, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_system_sat_id,
+		  { "Satellite ID", "gmr1.bcch.seg3a.system.sat_id",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_system_sys_id,
+		  { "System ID", "gmr1.bcch.seg3a.system.sys_id",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_satpos_latitude,
+		  { "Latitude", "gmr1.bcch.seg3a.satpos.latitude",
+		    FT_INT8, BASE_CUSTOM, CF_FUNC(seg3a_latitude_fmt), 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_satpos_longitude,
+		  { "Longitude", "gmr1.bcch.seg3a.satpos.longitude",
+		    FT_UINT16, BASE_CUSTOM, CF_FUNC(seg3a_longitude_fmt), 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_satpos_radius,
+		  { "Radius", "gmr1.bcch.seg3a.satpos.radius",
+		    FT_INT16, BASE_CUSTOM, CF_FUNC(seg3a_satpos_radius_fmt), 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_beam_latitude,
+		  { "Latitude", "gmr1.bcch.seg3a.beam.latitude",
+		    FT_INT16, BASE_CUSTOM, CF_FUNC(seg3a_latitude_fmt), 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_beam_longitude,
+		  { "Longitude", "gmr1.bcch.seg3a.beam.longitude",
+		    FT_UINT16, BASE_CUSTOM, CF_FUNC(seg3a_longitude_fmt), 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_miscinfo_sb_reselection_timer,
+		  { "SB_RESELECTION_TIMER", "gmr1.bcch.seg3a.sb_reselection_timer",
+            FT_UINT8, BASE_CUSTOM, CF_FUNC(seg3a_miscinfo_sb_reselection_timer_fmt), 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3a_spare,
+		  { "Spare", "gmr1.bcch.seg3a.spare",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+
+		{ &hf_seg3b_segment_type_b,
+		  { "Segment type: B", "gmr1.bcch.seg3b.segment_type_b",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3b_segment_type_bbis,
+		  { "Segment type: B bis", "gmr1.bcch.seg3b.segment_type_bbis",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3c_segment_type_c,
+		  { "Segment type: C", "gmr1.bcch.seg3c.segment_type_c",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3d_segment_type_d,
+		  { "Segment type: D", "gmr1.bcch.seg3d.segment_type_d",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3e_segment_type_e,
+		  { "Segment type: E", "gmr1.bcch.seg3e.segment_type_e",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3e_segment_type_ebis,
+		  { "Segment type: E bis", "gmr1.bcch.seg3e.segment_type_ebis",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3f_segment_type_f,
+		  { "Segment type: F", "gmr1.bcch.seg3f.segment_type_f",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3g_segment_type_g,
+		  { "Segment type: G", "gmr1.bcch.seg3g.segment_type_g",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3g_segment_type_gbis,
+		  { "Segment type: G bis", "gmr1.bcch.seg3g.segment_type_gbis",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3h_segment_type_h,
+		  { "Segment type: H", "gmr1.bcch.seg3h.segment_type_h",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3i_segment_type_i,
+		  { "Segment type: I", "gmr1.bcch.seg3i.segment_type_i",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3j_segment_type_j,
+		  { "Segment type: J", "gmr1.bcch.seg3j.segment_type_j",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3j_segment_type_jbis,
+		  { "Segment type: J bis", "gmr1.bcch.seg3j.segment_type_jbis",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg3k_segment_type_kbis,
+		  { "Segment type: K bis", "gmr1.bcch.seg3k.segment_type_kbis",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+
+		{ &hf_seg4a_class_type,
+		  { "Class type: 4", "gmr1.bcch.seg4a.class_type",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4a_segment_type_a,
+		  { "Segment type: A", "gmr1.bcch.seg3a.segment_type_a",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4b_segment_type_b,
+		  { "Segment type: B", "gmr1.bcch.seg3b.segment_type_b",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4c_segment_type_c,
+		  { "Segment type: C", "gmr1.bcch.seg3c.segment_type_c",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4d_segment_type_d,
+		  { "Segment type: D", "gmr1.bcch.seg3d.segment_type_d",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4e_segment_type_e,
+		  { "Segment type: E", "gmr1.bcch.seg3e.segment_type_e",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4f_segment_type_f,
+		  { "Segment type: F", "gmr1.bcch.seg3f.segment_type_f",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4g_segment_type_g,
+		  { "Segment type: G", "gmr1.bcch.seg3g.segment_type_g",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4h_segment_type_h,
+		  { "Segment type: H", "gmr1.bcch.seg3h.segment_type_h",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4i_segment_type_i,
+		  { "Segment type: I", "gmr1.bcch.seg3i.segment_type_i",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4j_segment_type_j,
+		  { "Segment type: J", "gmr1.bcch.seg3j.segment_type_j",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_seg4k_segment_type_k,
+		  { "Segment type: K", "gmr1.bcch.seg3k.segment_type_k",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+
+		/* System Information fields - [1] 10.1.31 & 10.1.32 */
+		{ &hf_si1_segment_choice,
+		  { "Segment Choice", "gmr1.bcch.si.segment_choice",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_si_protocol_version,
+		  { "Protocol version", "gmr1.bcch.si.protocol_version",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_si_block_type,
+		  { "Block Type", "gmr1.bcch.si.block_type",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_si_spare,
+		  { "Spare", "gmr1.bcch.si.spare",
+		    FT_UINT8, BASE_DEC, NULL, 0x00,
+		    NULL, HFILL }
+		},
+		{ &hf_si1_randomization_period,
+		  { "Randomization Period", "gmr1.bcch.si.randomization_period",
+		    FT_UINT8, BASE_DEC, VALS(si1_randomization_period_vals), 0x00,
+		    NULL, HFILL }
+		},
+	};
+
+	static gint *ett[] = {
+		&ett_gmr1_bcch,
+	};
+
+	static ei_register_info ei[] = {
+		{ &ei_unknown_segment, { "gmr1.bcch.unknown_segment", PI_PROTOCOL, PI_WARN, "Unknown segment!", EXPFILL }},
+	};
+
+	expert_module_t* expert_gmr1_bcch;
+
+	proto_gmr1_bcch = proto_register_protocol("GEO-Mobile Radio (1) BCCH", "GMR-1 BCCH", "gmr1.bcch");
+
+	proto_register_field_array(proto_gmr1_bcch, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+	expert_gmr1_bcch = expert_register_protocol(proto_gmr1_bcch);
+	expert_register_field_array(expert_gmr1_bcch, ei, array_length(ei));
+
+	register_dissector("gmr1_bcch", dissect_gmr1_bcch, proto_gmr1_bcch);
+}
+
+/*
+ * 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:
+ */