forked from osmocom/wireshark
e93d5f5314
This patch fixes several misspellings/typos in Wireshark SVN revision 28201. svn path=/trunk/; revision=28211
2531 lines
70 KiB
C
2531 lines
70 KiB
C
/* packet-gsm_a_common.c
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* Common routines for GSM A Interface dissection
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*
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* Copyright 2003, Michael Lum <mlum [AT] telostech.com>
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* In association with Telos Technology Inc.
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*
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* Split from packet-gsm_a.c by Neil Piercy <Neil [AT] littlebriars.co.uk>
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*
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* $Id$
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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#include <epan/packet.h>
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#include <epan/tap.h>
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#include "packet-bssap.h"
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#include "packet-sccp.h"
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#include "packet-gsm_a_common.h"
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/* nasty globals as a result of the split of packet-gsm_a.c in need of further restructure */
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/* nasty static for handling half octet mandatory V IEs */
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gboolean lower_nibble=FALSE;
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const value_string gsm_common_elem_strings[] = {
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/* Common Information Elements 10.5.1 */
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{ 0x00, "Cell Identity" },
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{ 0x00, "Ciphering Key Sequence Number" },
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{ 0x00, "Location Area Identification" },
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{ 0x00, "Mobile Identity" },
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{ 0x00, "Mobile Station Classmark 1" },
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{ 0x00, "Mobile Station Classmark 2" },
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{ 0x00, "Mobile Station Classmark 3" },
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{ 0x00, "Spare Half Octet" },
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{ 0x00, "Descriptive group or broadcast call reference" },
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{ 0x00, "Group Cipher Key Number" },
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{ 0x00, "PD and SAPI $(CCBS)$" },
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{ 0x00, "Priority Level" },
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{ 0x00, "PLMN List" },
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{ 0, NULL }
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};
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/* Mobile Station Classmark Value strings
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*/
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/* Mobile Station Classmark
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* Revision level
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*/
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static const value_string gsm_a_msc_rev_vals[] = {
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{ 0, "Reserved for GSM phase 1"},
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{ 1, "Used by GSM phase 2 mobile stations"},
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{ 2, "Used by mobile stations supporting R99 or later versions of the protocol"},
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{ 3, "Reserved for future use"},
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{ 0, NULL }
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};
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/* ES IND (octet 3, bit 5) "Controlled Early Classmark Sending" option implementation */
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static const value_string ES_IND_vals[] = {
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{ 0, "Controlled Early Classmark Sending option is not implemented in the MS"},
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{ 1, "Controlled Early Classmark Sending option is implemented in the MS"},
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{ 0, NULL }
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};
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/* A5/1 algorithm supported (octet 3, bit 4 */
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static const value_string A5_1_algorithm_sup_vals[] = {
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{ 0, "encryption algorithm A5/1 available"},
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{ 1, "encryption algorithm A5/1 not available"},
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{ 0, NULL }
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};
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/* RF Power Capability (Octet 3) */
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static const value_string RF_power_capability_vals[] = {
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{ 0, "class 1"},
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{ 1, "class 2"},
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{ 2, "class 3"},
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{ 3, "class 4"},
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{ 4, "class 5"},
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{ 7, "RF Power capability is irrelevant in this information element"},
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{ 0, NULL }
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};
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/* PS capability (pseudo-synchronization capability) (octet 4) */
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static const value_string ps_sup_cap_vals[] = {
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{ 0, "PS capability not present"},
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{ 1, "PS capability present"},
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{ 0, NULL }
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};
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/* SS Screening Indicator (octet 4)defined in 3GPP TS 24.080 */
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static const value_string SS_screening_indicator_vals[] = {
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{ 0, "Default value of phase 1"},
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{ 1, "Capability of handling of ellipsis notation and phase 2 error handling "},
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{ 2, "For future use"},
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{ 3, "For future use"},
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{ 0, NULL }
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};
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/* SM capability (MT SMS pt to pt capability) (octet 4)*/
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static const value_string SM_capability_vals[] = {
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{ 0, "Mobile station does not support mobile terminated point to point SMS"},
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{ 1, "Mobile station supports mobile terminated point to point SMS"},
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{ 0, NULL }
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};
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/* VBS notification reception (octet 4) */
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static const value_string VBS_notification_rec_vals[] = {
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{ 0, "no VBS capability or no notifications wanted"},
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{ 1, "VBS capability and notifications wanted"},
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{ 0, NULL }
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};
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/* VGCS notification reception (octet 4) */
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static const value_string VGCS_notification_rec_vals[] = {
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{ 0, "no VGCS capability or no notifications wanted"},
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{ 1, "VGCS capability and notifications wanted"},
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{ 0, NULL }
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};
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/* FC Frequency Capability (octet 4 ) */
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static const value_string FC_frequency_cap_vals[] = {
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{ 0, "The MS does not support the E-GSM or R-GSM band"},
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{ 1, "The MS does support the E-GSM or R-GSM "},
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{ 0, NULL }
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};
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/* CM3 (octet 5, bit 8) */
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static const value_string CM3_vals[] = {
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{ 0, "The MS does not support any options that are indicated in CM3"},
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{ 1, "The MS supports options that are indicated in classmark 3 IE"},
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{ 0, NULL }
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};
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/* LCS VA capability (LCS value added location request notification capability) (octet 5,bit 6) */
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static const value_string LCS_VA_cap_vals[] = {
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{ 0, "LCS value added location request notification capability not supported"},
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{ 1, "LCS value added location request notification capability supported"},
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{ 0, NULL }
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};
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/* UCS2 treatment (octet 5, bit 5) */
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static const value_string UCS2_treatment_vals[] = {
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{ 0, "the ME has a preference for the default alphabet"},
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{ 1, "the ME has no preference between the use of the default alphabet and the use of UCS2"},
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{ 0, NULL }
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};
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/* SoLSA (octet 5, bit 4) */
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static const value_string SoLSA_vals[] = {
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{ 0, "The ME does not support SoLSA"},
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{ 1, "The ME supports SoLSA"},
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{ 0, NULL }
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};
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/* CMSP: CM Service Prompt (octet 5, bit 3) */
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static const value_string CMSP_vals[] = {
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{ 0, "Network initiated MO CM connection request not supported"},
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{ 1, "Network initiated MO CM connection request supported for at least one CM protocol"},
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{ 0, NULL }
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};
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/* A5/4 algorithm supported */
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static const value_string A5_7_algorithm_sup_vals[] = {
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{ 0, "encryption algorithm A5/7 not available"},
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{ 1, "encryption algorithm A5/7 available"},
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{ 0, NULL }
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};
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/* A5/4 algorithm supported */
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static const value_string A5_6_algorithm_sup_vals[] = {
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{ 0, "encryption algorithm A5/6 not available"},
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{ 1, "encryption algorithm A5/6 available"},
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{ 0, NULL }
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};
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/* A5/5 algorithm supported */
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static const value_string A5_5_algorithm_sup_vals[] = {
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{ 0, "encryption algorithm A5/5 not available"},
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{ 1, "encryption algorithm A5/5 available"},
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{ 0, NULL }
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};
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/* A5/4 algorithm supported */
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static const value_string A5_4_algorithm_sup_vals[] = {
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{ 0, "encryption algorithm A5/4 not available"},
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{ 1, "encryption algorithm A5/4 available"},
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{ 0, NULL }
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};
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/* A5/3 algorithm supported (octet 5, bit 2) */
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static const value_string A5_3_algorithm_sup_vals[] = {
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{ 0, "encryption algorithm A5/3 not available"},
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{ 1, "encryption algorithm A5/3 available"},
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{ 0, NULL }
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};
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/* A5/2 algorithm supported (octet 5, bit 1) */
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static const value_string A5_2_algorithm_sup_vals[] = {
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{ 0, "encryption algorithm A5/2 not available"},
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{ 1, "encryption algorithm A5/2 available"},
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{ 0, NULL }
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};
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static const value_string mobile_identity_type_vals[] = {
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{ 1, "IMSI"},
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{ 2, "IMEI"},
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{ 3, "IMEISV"},
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{ 4, "TMSI/P-TMSI"},
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{ 5, "TMGI and optional MBMS Session Identity"}, /* ETSI TS 124 008 V6.8.0 (2005-03) p326 */
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{ 0, "No Identity"},
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{ 0, NULL }
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};
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static const value_string oddevenind_vals[] = {
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{ 0, "Even number of identity digits"},
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{ 1, "Odd number of identity digits"},
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{ 0, NULL }
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};
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static const value_string true_false_vals[] = {
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{ 0, "false" },
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{ 1, "true" },
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{ 0, NULL}
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};
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static const value_string gsm_a_sms_vals[] = {
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{0, "1/4 timeslot (~144 microseconds)" },
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{1, "2/4 timeslot (~288 microseconds)" },
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{2, "3/4 timeslot (~433 microseconds)" },
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{3, "4/4 timeslot (~577 microseconds)" },
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{4, "5/4 timeslot (~721 microseconds)" },
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{5, "6/4 timeslot (~865 microseconds)" },
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{6, "7/4 timeslot (~1009 microseconds)" },
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{7, "8/4 timeslot (~1154 microseconds)" },
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{8, "9/4 timeslot (~1298 microseconds)" },
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{9, "10/4 timeslot (~1442 microseconds)" },
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{10, "11/4 timeslot (~1586 microseconds)" },
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{11, "12/4 timeslot (~1730 microseconds)" },
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{12, "13/4 timeslot (~1874 microseconds)" },
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{13, "14/4 timeslot (~2019 microseconds)" },
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{14, "15/4 timeslot (~2163 microseconds)" },
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{15, "16/4 timeslot (~2307 microseconds)" },
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{ 0, NULL}
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};
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/* Initialize the protocol and registered fields */
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static int proto_a_common = -1;
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int gsm_a_tap = -1;
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int hf_gsm_a_common_elem_id = -1;
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static int hf_gsm_a_imsi = -1;
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int hf_gsm_a_tmsi = -1;
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static int hf_gsm_a_imei = -1;
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static int hf_gsm_a_imeisv = -1;
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static int hf_gsm_a_MSC_rev = -1;
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static int hf_gsm_a_ES_IND = -1;
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static int hf_gsm_a_A5_1_algorithm_sup = -1;
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static int hf_gsm_a_RF_power_capability = -1;
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static int hf_gsm_a_ps_sup_cap = -1;
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static int hf_gsm_a_SS_screening_indicator = -1;
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static int hf_gsm_a_SM_capability = -1;
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static int hf_gsm_a_VBS_notification_rec = -1;
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static int hf_gsm_a_VGCS_notification_rec = -1;
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static int hf_gsm_a_FC_frequency_cap = -1;
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static int hf_gsm_a_CM3 = -1;
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static int hf_gsm_a_LCS_VA_cap = -1;
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static int hf_gsm_a_UCS2_treatment = -1;
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static int hf_gsm_a_SoLSA = -1;
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static int hf_gsm_a_CMSP = -1;
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static int hf_gsm_a_A5_7_algorithm_sup= -1;
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static int hf_gsm_a_A5_6_algorithm_sup= -1;
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static int hf_gsm_a_A5_5_algorithm_sup= -1;
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static int hf_gsm_a_A5_4_algorithm_sup= -1;
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static int hf_gsm_a_A5_3_algorithm_sup= -1;
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static int hf_gsm_a_A5_2_algorithm_sup = -1;
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static int hf_gsm_a_odd_even_ind = -1;
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static int hf_gsm_a_mobile_identity_type = -1;
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static int hf_gsm_a_tmgi_mcc_mnc_ind = -1;
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static int hf_gsm_a_mbs_ses_id_ind = -1;
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static int hf_gsm_a_mbs_service_id = -1;
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int hf_gsm_a_L3_protocol_discriminator = -1;
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int hf_gsm_a_call_prio = -1;
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int hf_gsm_a_skip_ind = -1;
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static int hf_gsm_a_b7spare = -1;
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int hf_gsm_a_b8spare = -1;
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static int hf_gsm_a_spare_bits = -1;
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static int hf_gsm_a_multi_bnd_sup_fields = -1;
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static int hf_gsm_a_pgsm_supported = -1;
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static int hf_gsm_a_egsm_supported = -1;
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static int hf_gsm_a_gsm1800_supported = -1;
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static int hf_gsm_a_ass_radio_cap1 = -1;
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static int hf_gsm_a_ass_radio_cap2 = -1;
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static int hf_gsm_a_rsupport = -1;
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static int hf_gsm_a_r_capabilities = -1;
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static int hf_gsm_a_multislot_capabilities = -1;
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static int hf_gsm_a_multislot_class = -1;
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static int hf_gsm_a_ucs2_treatment = -1;
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static int hf_gsm_a_extended_measurement_cap = -1;
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static int hf_gsm_a_ms_measurement_capability = -1;
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static int hf_gsm_a_sms_value =-1;
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static int hf_gsm_a_sm_value =-1;
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static int hf_gsm_a_geo_loc_type_of_shape = -1;
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static int hf_gsm_a_geo_loc_sign_of_lat = -1;
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static int hf_gsm_a_geo_loc_deg_of_lat =-1;
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static int hf_gsm_a_geo_loc_deg_of_long =-1;
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static int hf_gsm_a_geo_loc_uncertainty_code = -1;
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static int hf_gsm_a_geo_loc_uncertainty_semi_major = -1;
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static int hf_gsm_a_geo_loc_uncertainty_semi_minor = -1;
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static int hf_gsm_a_geo_loc_orientation_of_major_axis = -1;
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static int hf_gsm_a_geo_loc_uncertainty_altitude = -1;
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static int hf_gsm_a_geo_loc_confidence = -1;
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static int hf_gsm_a_geo_loc_no_of_points = -1;
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static int hf_gsm_a_geo_loc_D = -1;
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static int hf_gsm_a_geo_loc_altitude = -1;
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static int hf_gsm_a_geo_loc_inner_radius = -1;
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static int hf_gsm_a_geo_loc_uncertainty_radius = -1;
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static int hf_gsm_a_geo_loc_offset_angle = -1;
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static int hf_gsm_a_geo_loc_included_angle = -1;
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static char a_bigbuf[1024];
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sccp_msg_info_t* sccp_msg;
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sccp_assoc_info_t* sccp_assoc;
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#define NUM_GSM_COMMON_ELEM (sizeof(gsm_common_elem_strings)/sizeof(value_string))
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gint ett_gsm_common_elem[NUM_GSM_COMMON_ELEM];
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#define ELLIPSOID_POINT 0
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#define ELLIPSOID_POINT_WITH_UNCERT_CIRC 1
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#define ELLIPSOID_POINT_WITH_UNCERT_ELLIPSE 3
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#define POLYGON 5
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#define ELLIPSOID_POINT_WITH_ALT 8
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#define ELLIPSOID_POINT_WITH_ALT_AND_UNCERT_ELLIPSOID 9
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#define ELLIPSOID_ARC 10
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/*
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4 3 2 1
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0 0 0 0 Ellipsoid Point
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0 0 0 1 Ellipsoid point with uncertainty Circle
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0 0 1 1 Ellipsoid point with uncertainty Ellipse
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0 1 0 1 Polygon
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1 0 0 0 Ellipsoid point with altitude
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1 0 0 1 Ellipsoid point with altitude and uncertainty Ellipsoid
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1 0 1 0 Ellipsoid Arc
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other values reserved for future use
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*/
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/* TS 23 032 Table 2a: Coding of Type of Shape */
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static const value_string type_of_shape_vals[] = {
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{ ELLIPSOID_POINT, "Ellipsoid Point"},
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{ ELLIPSOID_POINT_WITH_UNCERT_CIRC, "Ellipsoid point with uncertainty Circle"},
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{ ELLIPSOID_POINT_WITH_UNCERT_ELLIPSE, "Ellipsoid point with uncertainty Ellipse"},
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{ POLYGON, "Polygon"},
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{ ELLIPSOID_POINT_WITH_ALT, "Ellipsoid point with altitude"},
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{ ELLIPSOID_POINT_WITH_ALT_AND_UNCERT_ELLIPSOID, "Ellipsoid point with altitude and uncertainty Ellipsoid"},
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{ ELLIPSOID_ARC, "Ellipsoid Arc"},
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{ 0, NULL }
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};
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/* 3GPP TS 23.032 7.3.1 */
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static const value_string sign_of_latitude_vals[] = {
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{ 0, "North"},
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{ 1, "South"},
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{ 0, NULL }
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};
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static const value_string dir_of_alt_vals[] = {
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{ 0, "Altitude expresses height"},
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{ 1, "Altitude expresses depth"},
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{ 0, NULL }
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};
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void
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dissect_geographical_description(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree){
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proto_item *lat_item, *long_item, *major_item, *minor_item, *alt_item, *uncer_item;
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/*proto_tree *subtree; */
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guint8 type_of_shape;
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guint8 no_of_points;
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int offset = 0;
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int length;
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guint8 value;
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guint32 value32;
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/*subtree = proto_item_add_subtree(item, ett_gsm_a_geo_desc);*/
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length = tvb_reported_length_remaining(tvb,0);
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/* Geographical Location
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* The Location Estimate field is composed of 1 or more octets with an internal structure
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* according to section 7 in [23.032].
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*/
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proto_tree_add_item(tree, hf_gsm_a_geo_loc_type_of_shape, tvb, 0, 1, FALSE);
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if (length<2)
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return;
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type_of_shape = tvb_get_guint8(tvb,offset)>>4;
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switch (type_of_shape){
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case ELLIPSOID_POINT:
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/* Ellipsoid Point */
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case ELLIPSOID_POINT_WITH_UNCERT_CIRC:
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/* Ellipsoid Point with uncertainty Circle */
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case ELLIPSOID_POINT_WITH_UNCERT_ELLIPSE:
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/* Ellipsoid Point with uncertainty Ellipse */
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case ELLIPSOID_POINT_WITH_ALT:
|
|
/* Ellipsoid Point with Altitude */
|
|
case ELLIPSOID_POINT_WITH_ALT_AND_UNCERT_ELLIPSOID:
|
|
/* Ellipsoid Point with altitude and uncertainty ellipsoid */
|
|
case ELLIPSOID_ARC:
|
|
/* Ellipsoid Arc */
|
|
offset++;
|
|
if (length<4)
|
|
return;
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_sign_of_lat, tvb, offset, 1, FALSE);
|
|
|
|
value32 = tvb_get_ntoh24(tvb,offset)&0x7fffff;
|
|
/* convert degrees (X/0x7fffff) * 90 = degrees */
|
|
lat_item = proto_tree_add_item(tree, hf_gsm_a_geo_loc_deg_of_lat, tvb, offset, 3, FALSE);
|
|
proto_item_append_text(lat_item,"(%.5f degrees)", (((double)value32/8388607) * 90));
|
|
if (length<7)
|
|
return;
|
|
offset = offset + 3;
|
|
value32 = tvb_get_ntoh24(tvb,offset)&0x7fffff;
|
|
long_item = proto_tree_add_item(tree, hf_gsm_a_geo_loc_deg_of_long, tvb, offset, 3, FALSE);
|
|
/* (X/0xffffff) *360 = degrees */
|
|
proto_item_append_text(long_item,"(%.5f degrees)", (((double)value32/16777215) * 360));
|
|
offset = offset + 3;
|
|
if(type_of_shape==ELLIPSOID_POINT_WITH_UNCERT_CIRC){
|
|
/* Ellipsoid Point with uncertainty Circle */
|
|
if (length<8)
|
|
return;
|
|
/* Uncertainty code */
|
|
value = tvb_get_guint8(tvb,offset)&0x7f;
|
|
uncer_item = proto_tree_add_item(tree, hf_gsm_a_geo_loc_uncertainty_code, tvb, offset, 1, FALSE);
|
|
proto_item_append_text(uncer_item,"(%.1f m)", 10 * (pow(1.1, (double)value) - 1));
|
|
}else if(type_of_shape==ELLIPSOID_POINT_WITH_UNCERT_ELLIPSE){
|
|
/* Ellipsoid Point with uncertainty Ellipse */
|
|
/* Uncertainty semi-major octet 10
|
|
* To convert to metres 10*(((1.1)^X)-1)
|
|
*/
|
|
value = tvb_get_guint8(tvb,offset)&0x7f;
|
|
major_item = proto_tree_add_item(tree, hf_gsm_a_geo_loc_uncertainty_semi_major, tvb, offset, 1, FALSE);
|
|
proto_item_append_text(major_item,"(%.1f m)", 10 * (pow(1.1, (double)value) - 1));
|
|
offset++;
|
|
/* Uncertainty semi-minor Octet 11
|
|
* To convert to metres 10*(((1.1)^X)-1)
|
|
*/
|
|
value = tvb_get_guint8(tvb,offset)&0x7f;
|
|
minor_item = proto_tree_add_item(tree, hf_gsm_a_geo_loc_uncertainty_semi_minor, tvb, offset, 1, FALSE);
|
|
proto_item_append_text(minor_item,"(%.1f m)", 10 * (pow(1.1, (double)value) - 1));
|
|
offset++;
|
|
/* Orientation of major axis octet 12
|
|
* allowed value from 0-179 to convert
|
|
* to actual degrees multiply by 2.
|
|
*/
|
|
value = tvb_get_guint8(tvb,offset)&0x7f;
|
|
proto_tree_add_uint(tree, hf_gsm_a_geo_loc_orientation_of_major_axis, tvb, offset, 1, value*2);
|
|
offset++;
|
|
/* Confidence */
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_confidence, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
}else if(type_of_shape==ELLIPSOID_POINT_WITH_ALT){
|
|
/* Ellipsoid Point with Altitude */
|
|
/*D: Direction of Altitude */
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_D, tvb, offset, 1, FALSE);
|
|
/* Altitude */
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_altitude, tvb, offset, 2, FALSE);
|
|
}else if(type_of_shape==ELLIPSOID_POINT_WITH_ALT_AND_UNCERT_ELLIPSOID){
|
|
/* Ellipsoid Point with altitude and uncertainty ellipsoid */
|
|
/*D: Direction of Altitude octet 8,9 */
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_D, tvb, offset, 1, FALSE);
|
|
/* Altitude Octet 8,9*/
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_altitude, tvb, offset, 2, FALSE);
|
|
offset = offset +2;
|
|
/* Uncertainty semi-major octet 10
|
|
* To convert to metres 10*(((1.1)^X)-1)
|
|
*/
|
|
value = tvb_get_guint8(tvb,offset)&0x7f;
|
|
major_item = proto_tree_add_item(tree, hf_gsm_a_geo_loc_uncertainty_semi_major, tvb, offset, 1, FALSE);
|
|
proto_item_append_text(major_item,"(%.1f m)", 10 * (pow(1.1, (double)value) - 1));
|
|
offset++;
|
|
/* Uncertainty semi-minor Octet 11
|
|
* To convert to metres 10*(((1.1)^X)-1)
|
|
*/
|
|
value = tvb_get_guint8(tvb,offset)&0x7f;
|
|
minor_item = proto_tree_add_item(tree, hf_gsm_a_geo_loc_uncertainty_semi_minor, tvb, offset, 1, FALSE);
|
|
proto_item_append_text(minor_item,"(%.1f m)", 10 * (pow(1.1, (double)value) - 1));
|
|
offset++;
|
|
/* Orientation of major axis octet 12
|
|
* allowed value from 0-179 to convert
|
|
* to actual degrees multiply by 2.
|
|
*/
|
|
value = tvb_get_guint8(tvb,offset)&0x7f;
|
|
proto_tree_add_uint(tree, hf_gsm_a_geo_loc_orientation_of_major_axis, tvb, offset, 1, value*2);
|
|
offset++;
|
|
/* Uncertainty Altitude 13
|
|
* to convert to metres 45*(((1.025)^X)-1)
|
|
*/
|
|
value = tvb_get_guint8(tvb,offset)&0x7f;
|
|
alt_item = proto_tree_add_item(tree, hf_gsm_a_geo_loc_uncertainty_altitude, tvb, offset, 1, FALSE);
|
|
proto_item_append_text(alt_item,"(%.1f m)", 45 * (pow(1.025, (double)value) - 1));
|
|
offset++;
|
|
/* Confidence octet 14
|
|
*/
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_confidence, tvb, offset, 1, FALSE);
|
|
}else if(type_of_shape==ELLIPSOID_ARC){
|
|
/* Ellipsoid Arc */
|
|
/* Inner radius */
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_inner_radius, tvb, offset, 2, FALSE);
|
|
offset= offset +2;
|
|
/* Uncertainty radius */
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_uncertainty_radius, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
/* Offset angle */
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_offset_angle, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
/* Included angle */
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_included_angle, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
/* Confidence */
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_confidence, tvb, offset, 1, FALSE);
|
|
}
|
|
|
|
break;
|
|
case POLYGON: /* Polygon */
|
|
/* Number of points */
|
|
no_of_points = tvb_get_guint8(tvb,offset)&0x0f;
|
|
proto_tree_add_item(tree, hf_gsm_a_geo_loc_no_of_points, tvb, offset, 1, FALSE);
|
|
/*
|
|
while ( no_of_points > 0){
|
|
offset++;
|
|
|
|
no_of_points--;
|
|
}
|
|
*/
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
const char* get_gsm_a_msg_string(int pdu_type, int idx)
|
|
{
|
|
const char *msg_string=NULL;
|
|
|
|
switch (pdu_type) {
|
|
case GSM_A_PDU_TYPE_BSSMAP:
|
|
msg_string = gsm_bssmap_elem_strings[idx].strptr;
|
|
break;
|
|
case GSM_A_PDU_TYPE_DTAP:
|
|
msg_string = gsm_dtap_elem_strings[idx].strptr;
|
|
break;
|
|
case GSM_A_PDU_TYPE_RP:
|
|
msg_string = gsm_rp_elem_strings[idx].strptr;
|
|
break;
|
|
case GSM_A_PDU_TYPE_RR:
|
|
msg_string = gsm_rr_elem_strings[idx].strptr;
|
|
break;
|
|
case GSM_A_PDU_TYPE_COMMON:
|
|
msg_string = gsm_common_elem_strings[idx].strptr;
|
|
break;
|
|
case GSM_A_PDU_TYPE_GM:
|
|
msg_string = gsm_gm_elem_strings[idx].strptr;
|
|
break;
|
|
case GSM_A_PDU_TYPE_BSSLAP:
|
|
msg_string = gsm_bsslap_elem_strings[idx].strptr;
|
|
break;
|
|
case GSM_PDU_TYPE_BSSMAP_LE:
|
|
msg_string = gsm_bssmap_le_elem_strings[idx].strptr;
|
|
break;
|
|
case NAS_PDU_TYPE_COMMON:
|
|
msg_string = nas_eps_common_elem_strings[idx].strptr;
|
|
break;
|
|
case NAS_PDU_TYPE_EMM:
|
|
msg_string = nas_emm_elem_strings[idx].strptr;
|
|
break;
|
|
case NAS_PDU_TYPE_ESM:
|
|
msg_string = nas_esm_elem_strings[idx].strptr;
|
|
break;
|
|
default:
|
|
DISSECTOR_ASSERT_NOT_REACHED();
|
|
}
|
|
|
|
return msg_string;
|
|
}
|
|
|
|
static int get_hf_elem_id(int pdu_type)
|
|
{
|
|
int hf_elem_id = 0;
|
|
|
|
switch (pdu_type) {
|
|
case GSM_A_PDU_TYPE_BSSMAP:
|
|
hf_elem_id = hf_gsm_a_bssmap_elem_id;
|
|
break;
|
|
case GSM_A_PDU_TYPE_DTAP:
|
|
hf_elem_id = hf_gsm_a_dtap_elem_id;
|
|
break;
|
|
case GSM_A_PDU_TYPE_RP:
|
|
hf_elem_id = hf_gsm_a_rp_elem_id;
|
|
break;
|
|
case GSM_A_PDU_TYPE_RR:
|
|
hf_elem_id = hf_gsm_a_rr_elem_id;
|
|
break;
|
|
case GSM_A_PDU_TYPE_COMMON:
|
|
hf_elem_id = hf_gsm_a_common_elem_id;
|
|
break;
|
|
case GSM_A_PDU_TYPE_GM:
|
|
hf_elem_id = hf_gsm_a_gm_elem_id;
|
|
break;
|
|
case GSM_A_PDU_TYPE_BSSLAP:
|
|
hf_elem_id = hf_gsm_a_bsslap_elem_id;
|
|
break;
|
|
case GSM_PDU_TYPE_BSSMAP_LE:
|
|
hf_elem_id = hf_gsm_bssmap_le_elem_id;
|
|
break;
|
|
case NAS_PDU_TYPE_COMMON:
|
|
hf_elem_id = hf_nas_eps_common_elem_id;
|
|
break;
|
|
case NAS_PDU_TYPE_EMM:
|
|
hf_elem_id = hf_nas_eps_emm_elem_id;
|
|
break;
|
|
case NAS_PDU_TYPE_ESM:
|
|
hf_elem_id = hf_nas_eps_esm_elem_id;
|
|
break;
|
|
default:
|
|
DISSECTOR_ASSERT_NOT_REACHED();
|
|
}
|
|
|
|
return hf_elem_id;
|
|
}
|
|
|
|
/*
|
|
* Type Length Value (TLV) element dissector
|
|
*/
|
|
guint16 elem_tlv(tvbuff_t *tvb, proto_tree *tree, guint8 iei, gint pdu_type, int idx, guint32 offset, guint len _U_, const gchar *name_add)
|
|
{
|
|
guint8 oct;
|
|
guint16 parm_len;
|
|
guint8 lengt_length = 1;
|
|
guint16 consumed;
|
|
guint32 curr_offset;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
const value_string *elem_names;
|
|
gint *elem_ett;
|
|
guint16 (**elem_funcs)(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len);
|
|
|
|
curr_offset = offset;
|
|
consumed = 0;
|
|
|
|
SET_ELEM_VARS(pdu_type, elem_names, elem_ett, elem_funcs);
|
|
|
|
oct = tvb_get_guint8(tvb, curr_offset);
|
|
|
|
if (oct == iei){
|
|
parm_len = tvb_get_guint8(tvb, curr_offset + 1);
|
|
|
|
item =
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, parm_len + 1 + lengt_length,
|
|
"%s%s",
|
|
elem_names[idx].strptr,
|
|
(name_add == NULL) || (name_add[0] == '\0') ? "" : name_add);
|
|
|
|
subtree = proto_item_add_subtree(item, elem_ett[idx]);
|
|
|
|
proto_tree_add_uint(subtree,
|
|
get_hf_elem_id(pdu_type), tvb,
|
|
curr_offset, 1, oct);
|
|
|
|
proto_tree_add_uint(subtree, hf_gsm_a_length, tvb,
|
|
curr_offset + 1, lengt_length, parm_len);
|
|
|
|
if (parm_len > 0)
|
|
{
|
|
if (elem_funcs[idx] == NULL)
|
|
{
|
|
proto_tree_add_text(subtree,
|
|
tvb, curr_offset + 1 + lengt_length, parm_len,
|
|
"Element Value");
|
|
/* See ASSERT above */
|
|
consumed = (guint8)parm_len;
|
|
}
|
|
else
|
|
{
|
|
gchar *a_add_string;
|
|
|
|
a_add_string=ep_alloc(1024);
|
|
a_add_string[0] = '\0';
|
|
consumed =
|
|
(*elem_funcs[idx])(tvb, subtree, curr_offset + 2,
|
|
parm_len, a_add_string, 1024);
|
|
|
|
if (a_add_string[0] != '\0')
|
|
{
|
|
proto_item_append_text(item, "%s", a_add_string);
|
|
}
|
|
}
|
|
}
|
|
|
|
consumed += 1 + lengt_length;
|
|
}
|
|
|
|
return(consumed);
|
|
}
|
|
|
|
/*
|
|
* Type Length Value Extended(TLV-E) element dissector
|
|
* TS 24.007
|
|
* information elements of format LV-E or TLV-E with value part consisting of zero,
|
|
* one or more octets and a maximum of 65535 octets (type 6). This category is used in EPS only.
|
|
*/
|
|
guint16 elem_tlv_e(tvbuff_t *tvb, proto_tree *tree, guint8 iei, gint pdu_type, int idx, guint32 offset, guint len _U_, const gchar *name_add)
|
|
{
|
|
guint8 oct;
|
|
guint16 parm_len;
|
|
guint16 consumed;
|
|
guint32 curr_offset;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
const value_string *elem_names;
|
|
gint *elem_ett;
|
|
guint16 (**elem_funcs)(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len);
|
|
|
|
curr_offset = offset;
|
|
consumed = 0;
|
|
|
|
SET_ELEM_VARS(pdu_type, elem_names, elem_ett, elem_funcs);
|
|
|
|
oct = tvb_get_guint8(tvb, curr_offset);
|
|
|
|
if (oct == iei){
|
|
parm_len = tvb_get_ntohs(tvb, curr_offset + 1);
|
|
|
|
item = proto_tree_add_text(tree, tvb, curr_offset, parm_len + 1 + 2,
|
|
"%s%s",
|
|
elem_names[idx].strptr,
|
|
(name_add == NULL) || (name_add[0] == '\0') ? "" : name_add);
|
|
|
|
subtree = proto_item_add_subtree(item, elem_ett[idx]);
|
|
|
|
proto_tree_add_uint(subtree,
|
|
get_hf_elem_id(pdu_type), tvb,
|
|
curr_offset, 1, oct);
|
|
|
|
proto_tree_add_uint(subtree, hf_gsm_a_length, tvb,
|
|
curr_offset + 1, 2, parm_len);
|
|
|
|
if (parm_len > 0)
|
|
{
|
|
if (elem_funcs[idx] == NULL)
|
|
{
|
|
proto_tree_add_text(subtree,
|
|
tvb, curr_offset + 1 + 2, parm_len,
|
|
"Element Value");
|
|
/* See ASSERT above */
|
|
consumed = parm_len;
|
|
}
|
|
else
|
|
{
|
|
gchar *a_add_string;
|
|
|
|
a_add_string=ep_alloc(1024);
|
|
a_add_string[0] = '\0';
|
|
consumed =
|
|
(*elem_funcs[idx])(tvb, subtree, curr_offset + 1 + 2,
|
|
parm_len, a_add_string, 1024);
|
|
|
|
if (a_add_string[0] != '\0')
|
|
{
|
|
proto_item_append_text(item, "%s", a_add_string);
|
|
}
|
|
}
|
|
}
|
|
|
|
consumed += 1 + 2;
|
|
}
|
|
|
|
return(consumed);
|
|
}
|
|
|
|
/*
|
|
* Type Value (TV) element dissector
|
|
*
|
|
* Length cannot be used in these functions, big problem if a element dissector
|
|
* is not defined for these.
|
|
*/
|
|
guint16 elem_tv(tvbuff_t *tvb, proto_tree *tree, guint8 iei, gint pdu_type, int idx, guint32 offset, const gchar *name_add)
|
|
{
|
|
guint8 oct;
|
|
guint16 consumed;
|
|
guint32 curr_offset;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
const value_string *elem_names;
|
|
gint *elem_ett;
|
|
guint16 (**elem_funcs)(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len);
|
|
|
|
curr_offset = offset;
|
|
consumed = 0;
|
|
|
|
SET_ELEM_VARS(pdu_type, elem_names, elem_ett, elem_funcs);
|
|
|
|
oct = tvb_get_guint8(tvb, curr_offset);
|
|
|
|
if (oct == iei)
|
|
{
|
|
item =
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, -1,
|
|
"%s%s",
|
|
elem_names[idx].strptr,
|
|
(name_add == NULL) || (name_add[0] == '\0') ? "" : name_add);
|
|
|
|
subtree = proto_item_add_subtree(item, elem_ett[idx]);
|
|
|
|
proto_tree_add_uint(subtree,
|
|
get_hf_elem_id(pdu_type), tvb,
|
|
curr_offset, 1, oct);
|
|
|
|
if (elem_funcs[idx] == NULL)
|
|
{
|
|
/* BAD THING, CANNOT DETERMINE LENGTH */
|
|
|
|
proto_tree_add_text(subtree,
|
|
tvb, curr_offset + 1, 1,
|
|
"No element dissector, rest of dissection may be incorrect");
|
|
|
|
consumed = 1;
|
|
}
|
|
else
|
|
{
|
|
gchar *a_add_string;
|
|
|
|
a_add_string=ep_alloc(1024);
|
|
a_add_string[0] = '\0';
|
|
consumed = (*elem_funcs[idx])(tvb, subtree, curr_offset + 1, -1, a_add_string, 1024);
|
|
|
|
if (a_add_string[0] != '\0')
|
|
{
|
|
proto_item_append_text(item, "%s", a_add_string);
|
|
}
|
|
}
|
|
|
|
consumed++;
|
|
|
|
proto_item_set_len(item, consumed);
|
|
}
|
|
|
|
return(consumed);
|
|
}
|
|
|
|
/*
|
|
* Type Value (TV) element dissector
|
|
* Where top half nibble is IEI and bottom half nibble is value.
|
|
*
|
|
* Length cannot be used in these functions, big problem if a element dissector
|
|
* is not defined for these.
|
|
*/
|
|
guint16 elem_tv_short(tvbuff_t *tvb, proto_tree *tree, guint8 iei, gint pdu_type, int idx, guint32 offset, const gchar *name_add)
|
|
{
|
|
guint8 oct;
|
|
guint16 consumed;
|
|
guint32 curr_offset;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
const value_string *elem_names;
|
|
gint *elem_ett;
|
|
guint16 (**elem_funcs)(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len);
|
|
char buf[10+1];
|
|
|
|
curr_offset = offset;
|
|
consumed = 0;
|
|
|
|
SET_ELEM_VARS(pdu_type, elem_names, elem_ett, elem_funcs);
|
|
|
|
oct = tvb_get_guint8(tvb, curr_offset);
|
|
|
|
if ((oct & 0xf0) == (iei & 0xf0))
|
|
{
|
|
item =
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, -1,
|
|
"%s%s",
|
|
elem_names[idx].strptr,
|
|
(name_add == NULL) || (name_add[0] == '\0') ? "" : name_add);
|
|
|
|
subtree = proto_item_add_subtree(item, elem_ett[idx]);
|
|
|
|
other_decode_bitfield_value(buf, oct, 0xf0, 8);
|
|
proto_tree_add_text(subtree,
|
|
tvb, curr_offset, 1,
|
|
"%s : Element ID",
|
|
buf);
|
|
|
|
if (elem_funcs[idx] == NULL)
|
|
{
|
|
/* BAD THING, CANNOT DETERMINE LENGTH */
|
|
|
|
proto_tree_add_text(subtree,
|
|
tvb, curr_offset, 1,
|
|
"No element dissector, rest of dissection may be incorrect");
|
|
|
|
consumed++;
|
|
}
|
|
else
|
|
{
|
|
gchar *a_add_string;
|
|
|
|
a_add_string=ep_alloc(1024);
|
|
a_add_string[0] = '\0';
|
|
consumed = (*elem_funcs[idx])(tvb, subtree, curr_offset, -1, a_add_string, 1024);
|
|
|
|
if (a_add_string[0] != '\0')
|
|
{
|
|
proto_item_append_text(item, "%s", a_add_string);
|
|
}
|
|
}
|
|
|
|
proto_item_set_len(item, consumed);
|
|
}
|
|
|
|
return(consumed);
|
|
}
|
|
|
|
/*
|
|
* Type (T) element dissector
|
|
*/
|
|
guint16 elem_t(tvbuff_t *tvb, proto_tree *tree, guint8 iei, gint pdu_type, int idx, guint32 offset, const gchar *name_add)
|
|
{
|
|
guint8 oct;
|
|
guint32 curr_offset;
|
|
guint16 consumed;
|
|
const value_string *elem_names;
|
|
gint *elem_ett;
|
|
guint16 (**elem_funcs)(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len);
|
|
|
|
curr_offset = offset;
|
|
consumed = 0;
|
|
|
|
SET_ELEM_VARS(pdu_type, elem_names, elem_ett, elem_funcs);
|
|
|
|
oct = tvb_get_guint8(tvb, curr_offset);
|
|
|
|
if (oct == iei)
|
|
{
|
|
proto_tree_add_uint_format(tree,
|
|
get_hf_elem_id(pdu_type), tvb,
|
|
curr_offset, 1, oct,
|
|
"%s%s",
|
|
elem_names[idx].strptr,
|
|
(name_add == NULL) || (name_add[0] == '\0') ? "" : name_add);
|
|
|
|
consumed = 1;
|
|
}
|
|
|
|
return(consumed);
|
|
}
|
|
|
|
/*
|
|
* Length Value (LV) element dissector
|
|
*/
|
|
guint16
|
|
elem_lv(tvbuff_t *tvb, proto_tree *tree, gint pdu_type, int idx, guint32 offset, guint len _U_, const gchar *name_add)
|
|
{
|
|
guint8 parm_len;
|
|
guint16 consumed;
|
|
guint32 curr_offset;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
const value_string *elem_names;
|
|
gint *elem_ett;
|
|
guint16 (**elem_funcs)(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len);
|
|
|
|
curr_offset = offset;
|
|
consumed = 0;
|
|
|
|
SET_ELEM_VARS(pdu_type, elem_names, elem_ett, elem_funcs);
|
|
|
|
parm_len = tvb_get_guint8(tvb, curr_offset);
|
|
|
|
item =
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, parm_len + 1,
|
|
"%s%s",
|
|
elem_names[idx].strptr,
|
|
(name_add == NULL) || (name_add[0] == '\0') ? "" : name_add);
|
|
|
|
subtree = proto_item_add_subtree(item, elem_ett[idx]);
|
|
|
|
proto_tree_add_uint(subtree, hf_gsm_a_length, tvb,
|
|
curr_offset, 1, parm_len);
|
|
|
|
if (parm_len > 0)
|
|
{
|
|
if (elem_funcs[idx] == NULL)
|
|
{
|
|
proto_tree_add_text(subtree,
|
|
tvb, curr_offset + 1, parm_len,
|
|
"Element Value");
|
|
|
|
consumed = parm_len;
|
|
}
|
|
else
|
|
{
|
|
gchar *a_add_string;
|
|
|
|
a_add_string=ep_alloc(1024);
|
|
a_add_string[0] = '\0';
|
|
consumed =
|
|
(*elem_funcs[idx])(tvb, subtree, curr_offset + 1,
|
|
parm_len, a_add_string, 1024);
|
|
|
|
if (a_add_string[0] != '\0')
|
|
{
|
|
proto_item_append_text(item, "%s", a_add_string);
|
|
}
|
|
}
|
|
}
|
|
|
|
return(consumed + 1);
|
|
}
|
|
|
|
/*
|
|
* Length Value Extended(LV-E) element dissector
|
|
*/
|
|
guint16 elem_lv_e(tvbuff_t *tvb, proto_tree *tree, gint pdu_type, int idx, guint32 offset, guint len _U_, const gchar *name_add)
|
|
{
|
|
guint16 parm_len;
|
|
guint16 consumed;
|
|
guint32 curr_offset;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
const value_string *elem_names;
|
|
gint *elem_ett;
|
|
guint16 (**elem_funcs)(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len);
|
|
|
|
curr_offset = offset;
|
|
consumed = 0;
|
|
|
|
SET_ELEM_VARS(pdu_type, elem_names, elem_ett, elem_funcs);
|
|
|
|
parm_len = tvb_get_ntohs(tvb, curr_offset);
|
|
|
|
item = proto_tree_add_text(tree, tvb, curr_offset, parm_len + 2,
|
|
"%s%s",
|
|
elem_names[idx].strptr,
|
|
(name_add == NULL) || (name_add[0] == '\0') ? "" : name_add);
|
|
|
|
subtree = proto_item_add_subtree(item, elem_ett[idx]);
|
|
|
|
proto_tree_add_uint(subtree, hf_gsm_a_length, tvb,
|
|
curr_offset, 2, parm_len);
|
|
|
|
if (parm_len > 0)
|
|
{
|
|
if (elem_funcs[idx] == NULL)
|
|
{
|
|
proto_tree_add_text(subtree,
|
|
tvb, curr_offset + 2, parm_len,
|
|
"Element Value");
|
|
|
|
consumed = parm_len;
|
|
}
|
|
else
|
|
{
|
|
gchar *a_add_string;
|
|
|
|
a_add_string=ep_alloc(1024);
|
|
a_add_string[0] = '\0';
|
|
consumed =
|
|
(*elem_funcs[idx])(tvb, subtree, curr_offset + 2,
|
|
parm_len, a_add_string, 1024);
|
|
|
|
if (a_add_string[0] != '\0')
|
|
{
|
|
proto_item_append_text(item, "%s", a_add_string);
|
|
}
|
|
}
|
|
}
|
|
|
|
return(consumed + 2);
|
|
}
|
|
/*
|
|
* Value (V) element dissector
|
|
*
|
|
* Length cannot be used in these functions, big problem if a element dissector
|
|
* is not defined for these.
|
|
*/
|
|
guint16 elem_v(tvbuff_t *tvb, proto_tree *tree, gint pdu_type, int idx, guint32 offset)
|
|
{
|
|
guint16 consumed;
|
|
guint32 curr_offset;
|
|
const value_string *elem_names;
|
|
gint *elem_ett;
|
|
guint16 (**elem_funcs)(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len);
|
|
|
|
curr_offset = offset;
|
|
consumed = 0;
|
|
|
|
SET_ELEM_VARS(pdu_type, elem_names, elem_ett, elem_funcs);
|
|
|
|
if (elem_funcs[idx] == NULL)
|
|
{
|
|
/* BAD THING, CANNOT DETERMINE LENGTH */
|
|
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 1,
|
|
"No element dissector, rest of dissection may be incorrect");
|
|
|
|
consumed = 1;
|
|
}
|
|
else
|
|
{
|
|
gchar *a_add_string;
|
|
|
|
a_add_string=ep_alloc(1024);
|
|
a_add_string[0] = '\0';
|
|
consumed = (*elem_funcs[idx])(tvb, tree, curr_offset, -1, a_add_string, 1024);
|
|
}
|
|
|
|
return(consumed);
|
|
}
|
|
|
|
/*
|
|
* Short Value (V_SHORT) element dissector
|
|
*
|
|
* Length is (ab)used in these functions to indicate upper nibble of the octet (-2) or lower nibble (-1)
|
|
* noting that the tv_short dissector always sets the length to -1, as the upper nibble is the IEI.
|
|
* This is expected to be used upper nibble first, as the tables of 24.008.
|
|
*/
|
|
|
|
guint16 elem_v_short(tvbuff_t *tvb, proto_tree *tree, gint pdu_type, int idx, guint32 offset)
|
|
{
|
|
guint16 consumed;
|
|
guint32 curr_offset;
|
|
const value_string *elem_names;
|
|
gint *elem_ett;
|
|
guint16 (**elem_funcs)(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len);
|
|
|
|
curr_offset = offset;
|
|
consumed = 0;
|
|
|
|
SET_ELEM_VARS(pdu_type, elem_names, elem_ett, elem_funcs);
|
|
|
|
if (elem_funcs[idx] == NULL)
|
|
{
|
|
/* NOT A BAD THING - LENGTH IS HALF NIBBLE */
|
|
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 1,
|
|
"No element dissector");
|
|
|
|
consumed = 1;
|
|
}
|
|
else
|
|
{
|
|
gchar *a_add_string;
|
|
|
|
a_add_string=ep_alloc(1024);
|
|
a_add_string[0] = '\0';
|
|
consumed = (*elem_funcs[idx])(tvb, tree, curr_offset, (lower_nibble?LOWER_NIBBLE:UPPER_NIBBLE), a_add_string, 1024);
|
|
}
|
|
if (!lower_nibble) /* is this the first (upper) nibble ? */
|
|
{
|
|
consumed--; /* only half a nibble has been consumed, but all ie dissectors assume they consume 1 octet */
|
|
lower_nibble = TRUE;
|
|
}
|
|
else /* if it is the second (lower) nibble, move on... */
|
|
lower_nibble = FALSE;
|
|
|
|
return(consumed);
|
|
}
|
|
|
|
|
|
static dgt_set_t Dgt_tbcd = {
|
|
{
|
|
/* 0 1 2 3 4 5 6 7 8 9 a b c d e */
|
|
'0','1','2','3','4','5','6','7','8','9','?','B','C','*','#'
|
|
}
|
|
};
|
|
|
|
static dgt_set_t Dgt1_9_bcd = {
|
|
{
|
|
/* 0 1 2 3 4 5 6 7 8 9 a b c d e */
|
|
'0','1','2','3','4','5','6','7','8','9','?','?','?','?','?'
|
|
}
|
|
};
|
|
|
|
/* FUNCTIONS */
|
|
|
|
/*
|
|
* Unpack BCD input pattern into output ASCII pattern
|
|
*
|
|
* Input Pattern is supplied using the same format as the digits
|
|
*
|
|
* Returns: length of unpacked pattern
|
|
*/
|
|
int
|
|
my_dgt_tbcd_unpack(
|
|
char *out, /* ASCII pattern out */
|
|
guchar *in, /* packed pattern in */
|
|
int num_octs, /* Number of octets to unpack */
|
|
dgt_set_t *dgt /* Digit definitions */
|
|
)
|
|
{
|
|
int cnt = 0;
|
|
unsigned char i;
|
|
|
|
while (num_octs)
|
|
{
|
|
/*
|
|
* unpack first value in byte
|
|
*/
|
|
i = *in++;
|
|
*out++ = dgt->out[i & 0x0f];
|
|
cnt++;
|
|
|
|
/*
|
|
* unpack second value in byte
|
|
*/
|
|
i >>= 4;
|
|
|
|
if (i == 0x0f) /* odd number bytes - hit filler */
|
|
break;
|
|
|
|
*out++ = dgt->out[i];
|
|
cnt++;
|
|
num_octs--;
|
|
}
|
|
|
|
*out = '\0';
|
|
|
|
return(cnt);
|
|
}
|
|
|
|
/*
|
|
* Decode the MCC/MNC from 3 octets in 'octs'
|
|
*/
|
|
static void
|
|
mcc_mnc_aux(guint8 *octs, gchar *mcc, gchar *mnc)
|
|
{
|
|
if ((octs[0] & 0x0f) <= 9)
|
|
{
|
|
mcc[0] = Dgt_tbcd.out[octs[0] & 0x0f];
|
|
}
|
|
else
|
|
{
|
|
mcc[0] = (octs[0] & 0x0f) + 55;
|
|
}
|
|
|
|
if (((octs[0] & 0xf0) >> 4) <= 9)
|
|
{
|
|
mcc[1] = Dgt_tbcd.out[(octs[0] & 0xf0) >> 4];
|
|
}
|
|
else
|
|
{
|
|
mcc[1] = ((octs[0] & 0xf0) >> 4) + 55;
|
|
}
|
|
|
|
if ((octs[1] & 0x0f) <= 9)
|
|
{
|
|
mcc[2] = Dgt_tbcd.out[octs[1] & 0x0f];
|
|
}
|
|
else
|
|
{
|
|
mcc[2] = (octs[1] & 0x0f) + 55;
|
|
}
|
|
|
|
mcc[3] = '\0';
|
|
|
|
if (((octs[1] & 0xf0) >> 4) <= 9)
|
|
{
|
|
mnc[2] = Dgt_tbcd.out[(octs[1] & 0xf0) >> 4];
|
|
}
|
|
else
|
|
{
|
|
mnc[2] = ((octs[1] & 0xf0) >> 4) + 55;
|
|
}
|
|
|
|
if ((octs[2] & 0x0f) <= 9)
|
|
{
|
|
mnc[0] = Dgt_tbcd.out[octs[2] & 0x0f];
|
|
}
|
|
else
|
|
{
|
|
mnc[0] = (octs[2] & 0x0f) + 55;
|
|
}
|
|
|
|
if (((octs[2] & 0xf0) >> 4) <= 9)
|
|
{
|
|
mnc[1] = Dgt_tbcd.out[(octs[2] & 0xf0) >> 4];
|
|
}
|
|
else
|
|
{
|
|
mnc[1] = ((octs[2] & 0xf0) >> 4) + 55;
|
|
}
|
|
|
|
if (mnc[1] == 'F')
|
|
{
|
|
/*
|
|
* only a 1 digit MNC (very old)
|
|
*/
|
|
mnc[1] = '\0';
|
|
}
|
|
else if (mnc[2] == 'F')
|
|
{
|
|
/*
|
|
* only a 2 digit MNC
|
|
*/
|
|
mnc[2] = '\0';
|
|
}
|
|
else
|
|
{
|
|
mnc[3] = '\0';
|
|
}
|
|
}
|
|
|
|
/* 3GPP TS 24.008
|
|
* [3] 10.5.1.1 Cell Identity
|
|
*/
|
|
guint16
|
|
de_cell_id(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len)
|
|
{
|
|
guint32 curr_offset;
|
|
|
|
curr_offset = offset;
|
|
|
|
curr_offset +=
|
|
/* 0x02 CI */
|
|
be_cell_id_aux(tvb, tree, offset, len, add_string, string_len, 0x02);
|
|
|
|
/* no length check possible */
|
|
|
|
return(curr_offset - offset);
|
|
}
|
|
|
|
/*
|
|
* [3] 10.5.1.3
|
|
*/
|
|
guint16
|
|
de_lai(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_)
|
|
{
|
|
guint8 octs[3];
|
|
guint16 value;
|
|
guint32 curr_offset;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
gchar mcc[4];
|
|
gchar mnc[4];
|
|
|
|
curr_offset = offset;
|
|
|
|
item =
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 5, "%s",
|
|
gsm_common_elem_strings[DE_LAI].strptr);
|
|
|
|
subtree = proto_item_add_subtree(item, ett_gsm_common_elem[DE_LAI]);
|
|
|
|
octs[0] = tvb_get_guint8(tvb, curr_offset);
|
|
octs[1] = tvb_get_guint8(tvb, curr_offset + 1);
|
|
octs[2] = tvb_get_guint8(tvb, curr_offset + 2);
|
|
|
|
mcc_mnc_aux(octs, mcc, mnc);
|
|
|
|
|
|
proto_tree_add_text(subtree,
|
|
tvb, curr_offset, 3,
|
|
"Mobile Country Code (MCC): %s, Mobile Network Code (MNC): %s",
|
|
mcc,
|
|
mnc);
|
|
|
|
curr_offset += 3;
|
|
|
|
value = tvb_get_ntohs(tvb, curr_offset);
|
|
|
|
proto_tree_add_text(subtree,
|
|
tvb, curr_offset, 2,
|
|
"Location Area Code (LAC): 0x%04x (%u)",
|
|
value,
|
|
value);
|
|
|
|
proto_item_append_text(item, " - LAC (0x%04x)", value);
|
|
|
|
curr_offset += 2;
|
|
|
|
/* no length check possible */
|
|
|
|
return(curr_offset - offset);
|
|
}
|
|
|
|
/*
|
|
* [3] 10.5.1.4 Mobile Identity
|
|
* 3GPP TS 24.008 version 7.8.0 Release 7
|
|
*/
|
|
static const true_false_string gsm_a_present_vals = {
|
|
"Present" ,
|
|
"Not present"
|
|
};
|
|
|
|
guint16
|
|
de_mid(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len)
|
|
{
|
|
guint8 oct;
|
|
guint32 curr_offset;
|
|
guint8 *poctets;
|
|
guint32 value;
|
|
gboolean odd;
|
|
|
|
curr_offset = offset;
|
|
odd = FALSE;
|
|
|
|
oct = tvb_get_guint8(tvb, curr_offset);
|
|
|
|
switch (oct & 0x07)
|
|
{
|
|
case 0: /* No Identity */
|
|
other_decode_bitfield_value(a_bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 1,
|
|
"%s : Unused",
|
|
a_bigbuf);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_odd_even_ind, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_mobile_identity_type, tvb, curr_offset, 1, FALSE);
|
|
|
|
if (add_string)
|
|
g_snprintf(add_string, string_len, " - No Identity Code");
|
|
|
|
curr_offset++;
|
|
|
|
if (len > 1)
|
|
{
|
|
proto_tree_add_text(tree, tvb, curr_offset, len - 1,
|
|
"Format not supported");
|
|
}
|
|
|
|
curr_offset += len - 1;
|
|
break;
|
|
|
|
case 3: /* IMEISV */
|
|
/* FALLTHRU */
|
|
|
|
case 1: /* IMSI */
|
|
other_decode_bitfield_value(a_bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 1,
|
|
"%s : Identity Digit 1: %c",
|
|
a_bigbuf,
|
|
Dgt1_9_bcd.out[(oct & 0xf0) >> 4]);
|
|
|
|
odd = oct & 0x08;
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_odd_even_ind, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_mobile_identity_type, tvb, curr_offset, 1, FALSE);
|
|
|
|
a_bigbuf[0] = Dgt1_9_bcd.out[(oct & 0xf0) >> 4];
|
|
curr_offset++;
|
|
|
|
poctets = tvb_get_ephemeral_string(tvb, curr_offset, len - (curr_offset - offset));
|
|
|
|
my_dgt_tbcd_unpack(&a_bigbuf[1], poctets, len - (curr_offset - offset),
|
|
&Dgt1_9_bcd);
|
|
|
|
proto_tree_add_string_format(tree,
|
|
((oct & 0x07) == 3) ? hf_gsm_a_imeisv : hf_gsm_a_imsi,
|
|
tvb, curr_offset, len - (curr_offset - offset),
|
|
a_bigbuf,
|
|
"BCD Digits: %s",
|
|
a_bigbuf);
|
|
|
|
if (sccp_assoc && ! sccp_assoc->calling_party) {
|
|
sccp_assoc->calling_party = se_strdup_printf(
|
|
((oct & 0x07) == 3) ? "IMEISV: %s" : "IMSI: %s",
|
|
a_bigbuf );
|
|
}
|
|
|
|
if (add_string)
|
|
g_snprintf(add_string, string_len, " - %s (%s)",
|
|
((oct & 0x07) == 3) ? "IMEISV" : "IMSI",
|
|
a_bigbuf);
|
|
|
|
curr_offset += len - (curr_offset - offset);
|
|
|
|
if (!odd)
|
|
{
|
|
oct = tvb_get_guint8(tvb, curr_offset - 1);
|
|
|
|
other_decode_bitfield_value(a_bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset - 1, 1,
|
|
"%s : Filler",
|
|
a_bigbuf);
|
|
}
|
|
break;
|
|
|
|
case 2: /* IMEI */
|
|
other_decode_bitfield_value(a_bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 1,
|
|
"%s : Identity Digit 1: %c",
|
|
a_bigbuf,
|
|
Dgt1_9_bcd.out[(oct & 0xf0) >> 4]);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_odd_even_ind, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_mobile_identity_type, tvb, curr_offset, 1, FALSE);
|
|
|
|
a_bigbuf[0] = Dgt1_9_bcd.out[(oct & 0xf0) >> 4];
|
|
curr_offset++;
|
|
|
|
poctets = tvb_get_ephemeral_string(tvb, curr_offset, len - (curr_offset - offset));
|
|
|
|
my_dgt_tbcd_unpack(&a_bigbuf[1], poctets, len - (curr_offset - offset),
|
|
&Dgt1_9_bcd);
|
|
|
|
proto_tree_add_string_format(tree,
|
|
hf_gsm_a_imei,
|
|
tvb, curr_offset, len - (curr_offset - offset),
|
|
a_bigbuf,
|
|
"BCD Digits: %s",
|
|
a_bigbuf);
|
|
|
|
if (add_string)
|
|
g_snprintf(add_string, string_len, " - IMEI (%s)", a_bigbuf);
|
|
|
|
curr_offset += len - (curr_offset - offset);
|
|
break;
|
|
|
|
case 4: /* TMSI/P-TMSI */
|
|
other_decode_bitfield_value(a_bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 1,
|
|
"%s : Unused",
|
|
a_bigbuf);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_odd_even_ind, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_mobile_identity_type, tvb, curr_offset, 1, FALSE);
|
|
|
|
curr_offset++;
|
|
|
|
value = tvb_get_ntohl(tvb, curr_offset);
|
|
|
|
proto_tree_add_uint(tree, hf_gsm_a_tmsi,
|
|
tvb, curr_offset, 4,
|
|
value);
|
|
|
|
if (add_string)
|
|
g_snprintf(add_string, string_len, " - TMSI/P-TMSI (0x%04x)", value);
|
|
|
|
curr_offset += 4;
|
|
break;
|
|
|
|
case 5: /* TMGI and optional MBMS Session Identity */
|
|
/* MBMS Session Identity indication (octet 3) Bit 6 */
|
|
proto_tree_add_item(tree, hf_gsm_a_mbs_ses_id_ind, tvb, offset, 1, FALSE);
|
|
/* MCC/MNC indication (octet 3) Bit 5 */
|
|
proto_tree_add_item(tree, hf_gsm_a_tmgi_mcc_mnc_ind, tvb, offset, 1, FALSE);
|
|
/* Odd/even indication (octet 3) Bit 4 */
|
|
proto_tree_add_item(tree, hf_gsm_a_odd_even_ind, tvb, curr_offset, 1, FALSE);
|
|
curr_offset++;
|
|
/* MBMS Service ID (octet 4, 5 and 6) */
|
|
proto_tree_add_item(tree, hf_gsm_a_mbs_service_id, tvb, offset, 1, FALSE);
|
|
curr_offset += 3;
|
|
if((oct&0x10)==0x10){
|
|
/* MCC/MNC*/
|
|
/* MCC, Mobile country code (octet 6a, octet 6b bits 1 to 4)*/
|
|
/* MNC, Mobile network code (octet 6b bits 5 to 8, octet 6c) */
|
|
curr_offset += 3;
|
|
}
|
|
if((oct&0x20)==0x20){
|
|
/* MBMS Session Identity (octet 7)
|
|
* The MBMS Session Identity field is encoded as the value part
|
|
* of the MBMS Session Identity IE as specified in 3GPP TS 48.018 [86].
|
|
*/
|
|
curr_offset++;
|
|
}
|
|
break;
|
|
|
|
default: /* Reserved */
|
|
proto_tree_add_item(tree, hf_gsm_a_odd_even_ind, tvb, curr_offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_gsm_a_mobile_identity_type, tvb, curr_offset, 1, FALSE);
|
|
proto_tree_add_text(tree, tvb, curr_offset, len,
|
|
"Mobile station identity Format %u, Format Unknown",(oct & 0x07));
|
|
|
|
if (add_string)
|
|
g_snprintf(add_string, string_len, " - Format Unknown");
|
|
|
|
curr_offset += len;
|
|
break;
|
|
}
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, curr_offset - offset);
|
|
|
|
return(curr_offset - offset);
|
|
}
|
|
|
|
/*
|
|
* [3] 10.5.1.5
|
|
*/
|
|
guint16
|
|
de_ms_cm_1(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_)
|
|
{
|
|
guint8 oct;
|
|
guint32 curr_offset;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
|
|
curr_offset = offset;
|
|
|
|
oct = tvb_get_guint8(tvb, curr_offset);
|
|
|
|
item =
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 1, "%s",
|
|
gsm_common_elem_strings[DE_MS_CM_1].strptr);
|
|
|
|
subtree = proto_item_add_subtree(item, ett_gsm_common_elem[DE_MS_CM_1]);
|
|
|
|
proto_tree_add_item(subtree, hf_gsm_a_b8spare, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(subtree, hf_gsm_a_MSC_rev, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(subtree, hf_gsm_a_ES_IND, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(subtree, hf_gsm_a_A5_1_algorithm_sup, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(subtree, hf_gsm_a_RF_power_capability, tvb, curr_offset, 1, FALSE);
|
|
|
|
curr_offset++;
|
|
|
|
/* no length check possible */
|
|
|
|
return(curr_offset - offset);
|
|
}
|
|
|
|
/*
|
|
* [3] 10.5.1.6 Mobile Station Classmark 2
|
|
* 3GPP TS 24.008 version 7.8.0 Release 7
|
|
*/
|
|
guint16
|
|
de_ms_cm_2(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string _U_, int string_len _U_)
|
|
{
|
|
guint32 curr_offset;
|
|
curr_offset = offset;
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_b8spare, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_MSC_rev, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_ES_IND, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_A5_1_algorithm_sup, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_RF_power_capability, tvb, curr_offset, 1, FALSE);
|
|
|
|
curr_offset++;
|
|
|
|
NO_MORE_DATA_CHECK(len);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_b8spare, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_ps_sup_cap, tvb, curr_offset, 1, FALSE);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_SS_screening_indicator, tvb, curr_offset, 1, FALSE);
|
|
|
|
/* SM capability (MT SMS pt to pt capability) (octet 4)*/
|
|
proto_tree_add_item(tree, hf_gsm_a_SM_capability, tvb, curr_offset, 1, FALSE);
|
|
/* VBS notification reception (octet 4) */
|
|
proto_tree_add_item(tree, hf_gsm_a_VBS_notification_rec, tvb, curr_offset, 1, FALSE);
|
|
/*VGCS notification reception (octet 4)*/
|
|
proto_tree_add_item(tree, hf_gsm_a_VGCS_notification_rec, tvb, curr_offset, 1, FALSE);
|
|
/* FC Frequency Capability (octet 4 ) */
|
|
proto_tree_add_item(tree, hf_gsm_a_FC_frequency_cap, tvb, curr_offset, 1, FALSE);
|
|
|
|
curr_offset++;
|
|
|
|
NO_MORE_DATA_CHECK(len);
|
|
|
|
/* CM3 (octet 5, bit 8) */
|
|
proto_tree_add_item(tree, hf_gsm_a_CM3, tvb, curr_offset, 1, FALSE);
|
|
/* spare bit 7 */
|
|
proto_tree_add_item(tree, hf_gsm_a_b7spare, tvb, curr_offset, 1, FALSE);
|
|
/* LCS VA capability (LCS value added location request notification capability) (octet 5,bit 6) */
|
|
proto_tree_add_item(tree, hf_gsm_a_LCS_VA_cap, tvb, curr_offset, 1, FALSE);
|
|
/* UCS2 treatment (octet 5, bit 5) */
|
|
proto_tree_add_item(tree, hf_gsm_a_UCS2_treatment, tvb, curr_offset, 1, FALSE);
|
|
/* SoLSA (octet 5, bit 4) */
|
|
proto_tree_add_item(tree, hf_gsm_a_SoLSA, tvb, curr_offset, 1, FALSE);
|
|
/* CMSP: CM Service Prompt (octet 5, bit 3) */
|
|
proto_tree_add_item(tree, hf_gsm_a_CMSP, tvb, curr_offset, 1, FALSE);
|
|
/* A5/3 algorithm supported (octet 5, bit 2) */
|
|
proto_tree_add_item(tree, hf_gsm_a_A5_3_algorithm_sup, tvb, curr_offset, 1, FALSE);
|
|
/* A5/2 algorithm supported (octet 5, bit 1) */
|
|
proto_tree_add_item(tree, hf_gsm_a_A5_2_algorithm_sup, tvb, curr_offset, 1, FALSE);
|
|
|
|
curr_offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, curr_offset - offset);
|
|
|
|
return(curr_offset - offset);
|
|
}
|
|
|
|
/*
|
|
* [3] 10.5.1.7 Mobile Station Classmark 3
|
|
* 3GPP TS 24.008 version 7.8.0 Release 7
|
|
*/
|
|
guint16
|
|
de_ms_cm_3(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string _U_, int string_len _U_)
|
|
{
|
|
guint32 curr_offset;
|
|
guint32 bit_offset; /* Offset in bits */
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
guint64 multi_bnd_sup_fields, rsupport, multislotCapability, msMeasurementCapability;
|
|
|
|
curr_offset = offset;
|
|
|
|
bit_offset = curr_offset << 3;
|
|
|
|
/* Spare bit */
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_spare_bits, tvb, bit_offset, 1, FALSE);
|
|
bit_offset++;
|
|
|
|
/* Multiband supported field
|
|
* { < Multiband supported : { 000 } >
|
|
* < A5 bits >
|
|
* | < Multiband supported : { 101 | 110 } >
|
|
* < A5 bits >
|
|
* < Associated Radio Capability 2 : bit(4) >
|
|
* < Associated Radio Capability 1 : bit(4) >
|
|
* | < Multiband supported : { 001 | 010 | 100 } >
|
|
* < A5 bits >
|
|
* < spare bit >(4)
|
|
* < Associated Radio Capability 1 : bit(4) > }
|
|
*/
|
|
|
|
item = proto_tree_add_bits_ret_val(tree, hf_gsm_a_multi_bnd_sup_fields, tvb, bit_offset, 3, &multi_bnd_sup_fields, FALSE);
|
|
subtree = proto_item_add_subtree(item, ett_gsm_common_elem[DE_MS_CM_3]);
|
|
|
|
proto_tree_add_bits_item(subtree, hf_gsm_a_gsm1800_supported, tvb, bit_offset, 1, FALSE);
|
|
bit_offset++;
|
|
|
|
proto_tree_add_bits_item(subtree, hf_gsm_a_egsm_supported, tvb, bit_offset, 1, FALSE);
|
|
bit_offset++;
|
|
|
|
proto_tree_add_bits_item(subtree, hf_gsm_a_pgsm_supported, tvb, bit_offset, 1, FALSE);
|
|
bit_offset++;
|
|
|
|
/* < A5 bits > */
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_A5_7_algorithm_sup, tvb, bit_offset, 1, FALSE);
|
|
bit_offset++;
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_A5_6_algorithm_sup, tvb, bit_offset, 1, FALSE);
|
|
bit_offset++;
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_A5_5_algorithm_sup, tvb, bit_offset, 1, FALSE);
|
|
bit_offset++;
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_A5_4_algorithm_sup, tvb, bit_offset, 1, FALSE);
|
|
bit_offset++;
|
|
|
|
switch(multi_bnd_sup_fields){
|
|
case 0:
|
|
/* A5 bits dissected is done */
|
|
break;
|
|
/*
|
|
* | < Multiband supported : { 001 | 010 | 100 } >
|
|
*/
|
|
case 1:
|
|
case 2:
|
|
case 4:
|
|
/* < spare bit >(4) */
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_spare_bits, tvb, bit_offset, 4, FALSE);
|
|
bit_offset+=4;
|
|
/* < Associated Radio Capability 1 : bit(4) > */
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_ass_radio_cap1, tvb, bit_offset, 4, FALSE);
|
|
bit_offset+=4;
|
|
break;
|
|
/* < Multiband supported : { 101 | 110 } > */
|
|
case 5:
|
|
/* fall trough */
|
|
case 6:
|
|
/* < Associated Radio Capability 2 : bit(4) > */
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_ass_radio_cap2, tvb, bit_offset, 4, FALSE);
|
|
bit_offset+=4;
|
|
/* < Associated Radio Capability 1 : bit(4) > */
|
|
proto_tree_add_bits_item(subtree, hf_gsm_a_ass_radio_cap1, tvb, bit_offset, 4, FALSE);
|
|
bit_offset+=4;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
/* Extract R Support */
|
|
proto_tree_add_bits_ret_val(tree, hf_gsm_a_rsupport, tvb, bit_offset, 1, &rsupport, FALSE);
|
|
bit_offset++;
|
|
|
|
if(rsupport == 1)
|
|
{
|
|
/*
|
|
* { 0 | 1 < R Support > }
|
|
* Extract R Capabilities
|
|
*/
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_r_capabilities, tvb, bit_offset, 3, FALSE);
|
|
bit_offset = bit_offset + 3;
|
|
}
|
|
|
|
/*
|
|
* { 0 | 1 < HSCSD Multi Slot Capability > }
|
|
* Extract Multislot capability
|
|
*/
|
|
proto_tree_add_bits_ret_val(tree, hf_gsm_a_multislot_capabilities, tvb, bit_offset, 1, &multislotCapability, FALSE);
|
|
bit_offset++;
|
|
|
|
if(multislotCapability == 1)
|
|
{
|
|
/* Extract Multislot Class */
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_multislot_class, tvb, bit_offset, 5, FALSE);
|
|
bit_offset = bit_offset + 5;
|
|
}
|
|
|
|
/* < UCS2 treatment: bit > */
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_ucs2_treatment, tvb, bit_offset, 1, FALSE);
|
|
bit_offset = bit_offset + 1;
|
|
|
|
/* < Extended Measurement Capability : bit > */
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_extended_measurement_cap, tvb, bit_offset, 1, FALSE);
|
|
bit_offset = bit_offset + 1;
|
|
|
|
/* { 0 | 1 < MS measurement capability > }
|
|
* Extract MS Measurement capability
|
|
*/
|
|
proto_tree_add_bits_ret_val(tree, hf_gsm_a_ms_measurement_capability, tvb, bit_offset, 1, &msMeasurementCapability, FALSE);
|
|
bit_offset = bit_offset + 1;
|
|
|
|
if(msMeasurementCapability == 1)
|
|
{
|
|
/* Extract SMS Value n/4 */
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_sms_value, tvb, bit_offset, 4, FALSE);
|
|
bit_offset = bit_offset + 4;
|
|
|
|
/* Extract SM Value n/4 */
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_sm_value, tvb, bit_offset, 4, FALSE);
|
|
bit_offset = bit_offset + 4;
|
|
}
|
|
|
|
/*
|
|
{ 0 | 1 < MS Positioning Method Capability > }
|
|
{ 0 | 1 < ECSD Multi Slot Capability > }
|
|
{ 0 | 1 < 8-PSK Struct > }
|
|
{ 0 | 1 < GSM 400 Bands Supported : { 01 | 10 | 11 } >
|
|
< GSM 400 Associated Radio Capability: bit(4) > }
|
|
{ 0 | 1 <GSM 850 Associated Radio Capability : bit(4) > }
|
|
{ 0 | 1 <GSM 1900 Associated Radio Capability : bit(4) > }
|
|
< UMTS FDD Radio Access Technology Capability : bit >
|
|
< UMTS 3.84 Mcps TDD Radio Access Technology Capability : bit >
|
|
< CDMA 2000 Radio Access Technology Capability : bit >
|
|
{ 0 | 1 < DTM GPRS Multi Slot Class : bit(2) >
|
|
< Single Slot DTM : bit >
|
|
{0 | 1< DTM EGPRS Multi Slot Class : bit(2) > } }
|
|
{ 0 | 1 < Single Band Support > } -- Release 4 starts here:
|
|
{ 0 | 1 <GSM 750 Associated Radio Capability : bit(4)>}
|
|
< UMTS 1.28 Mcps TDD Radio Access Technology Capability : bit >
|
|
< GERAN Feature Package 1 : bit >
|
|
{ 0 | 1 < Extended DTM GPRS Multi Slot Class : bit(2) >
|
|
< Extended DTM EGPRS Multi Slot Class : bit(2) > }
|
|
{ 0 | 1 < High Multislot Capability : bit(2) > } ---Release 5 starts here.
|
|
{ 0 | 1 < GERAN Iu Mode Capabilities > } -- "1" also means support of GERAN Iu mode
|
|
< GERAN Feature Package 2 : bit >
|
|
< GMSK Multislot Power Profile : bit (2) >
|
|
< 8-PSK Multislot Power Profile : bit (2) >
|
|
{ 0 | 1 < T-GSM 400 Bands Supported : { 01 | 10 | 11 } > -- Release 6 starts here.
|
|
< T-GSM 400 Associated Radio Capability: bit(4) > }
|
|
{ 0 | 1 < T-GSM 900 Associated Radio Capability: bit(4) > }
|
|
< Downlink Advanced Receiver Performance : bit (2)>
|
|
< DTM Enhancements Capability : bit >
|
|
{ 0 | 1 < DTM GPRS High Multi Slot Class : bit(3) >
|
|
< Offset required : bit>
|
|
{ 0 | 1 < DTM EGPRS High Multi Slot Class : bit(3) > } }
|
|
< Repeated ACCH Capability : bit >
|
|
{ 0 | 1 <GSM 710 Associated Radio Capability : bit(4)>} -- Release 7 starts here.
|
|
{ 0 | 1 <T-GSM 810 Associated Radio Capability : bit(4)>}
|
|
< Ciphering Mode Setting Capability : bit >
|
|
0 | 1 < Multislot Capability Reduction for Downlink Dual Carrier : bit (3) > } -- "1" also means that
|
|
the mobile station supports dual carrier in the downlink during DTM
|
|
< spare bits > ;
|
|
*/
|
|
/* translate to byte offset */
|
|
curr_offset = (bit_offset+7)>>3;
|
|
EXTRANEOUS_DATA_CHECK(len, curr_offset - offset);
|
|
|
|
return(len);
|
|
}
|
|
/*
|
|
* [3] 10.5.1.8
|
|
*/
|
|
static guint16
|
|
de_spare_nibble(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_)
|
|
{
|
|
guint32 curr_offset;
|
|
|
|
curr_offset = offset;
|
|
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 1,
|
|
"Spare Nibble");
|
|
|
|
curr_offset++;
|
|
|
|
/* no length check possible */
|
|
|
|
return(curr_offset - offset);
|
|
}
|
|
|
|
/*
|
|
* [3] 10.5.1.9 Descriptive group or broadcast call reference
|
|
*/
|
|
guint16
|
|
de_d_gb_call_ref(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_)
|
|
{
|
|
guint8 oct;
|
|
guint32 value;
|
|
guint32 curr_offset;
|
|
const gchar *str;
|
|
|
|
curr_offset = offset;
|
|
|
|
value = tvb_get_ntohl(tvb, curr_offset);
|
|
|
|
other_decode_bitfield_value(a_bigbuf, value, 0xffffffe0, 32);
|
|
proto_tree_add_text(tree, tvb, curr_offset, 4,
|
|
"%s : Group or Broadcast call reference: %u (0x%04x)",
|
|
a_bigbuf,
|
|
(value & 0xffffffe0) >> 5,
|
|
(value & 0xffffffe0) >> 5);
|
|
|
|
other_decode_bitfield_value(a_bigbuf, value, 0x00000010, 32);
|
|
proto_tree_add_text(tree, tvb, curr_offset, 4,
|
|
"%s : SF Service Flag: %s",
|
|
a_bigbuf,
|
|
(value & 0x00000010) ?
|
|
"VGCS (Group call reference)" : "VBS (Broadcast call reference)");
|
|
|
|
other_decode_bitfield_value(a_bigbuf, value, 0x00000008, 32);
|
|
proto_tree_add_text(tree, tvb, curr_offset, 4,
|
|
"%s : AF Acknowledgement Flag: acknowledgment is %srequired",
|
|
a_bigbuf,
|
|
(value & 0x00000008) ? "" : "not ");
|
|
|
|
switch (value & 0x00000007)
|
|
{
|
|
case 1: str = "call priority level 4"; break;
|
|
case 2: str = "call priority level 3"; break;
|
|
case 3: str = "call priority level 2"; break;
|
|
case 4: str = "call priority level 1"; break;
|
|
case 5: str = "call priority level 0"; break;
|
|
case 6: str = "call priority level B"; break;
|
|
case 7: str = "call priority level A"; break;
|
|
default:
|
|
str = "no priority applied";
|
|
break;
|
|
}
|
|
|
|
other_decode_bitfield_value(a_bigbuf, value, 0x00000007, 32);
|
|
proto_tree_add_text(tree, tvb, curr_offset, 4,
|
|
"%s : Call Priority: %s",
|
|
a_bigbuf,
|
|
str);
|
|
|
|
curr_offset += 4;
|
|
|
|
oct = tvb_get_guint8(tvb, curr_offset);
|
|
|
|
other_decode_bitfield_value(a_bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree, tvb, curr_offset, 1,
|
|
"%s : Ciphering Information",
|
|
a_bigbuf);
|
|
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_spare_bits, tvb, (curr_offset<<3)+4, 4, FALSE);
|
|
curr_offset++;
|
|
|
|
/* no length check possible */
|
|
|
|
return(curr_offset - offset);
|
|
}
|
|
|
|
/*
|
|
* [3] 10.5.1.10a PD and SAPI $(CCBS)$
|
|
*/
|
|
static guint16
|
|
de_pd_sapi(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_)
|
|
{
|
|
guint8 oct;
|
|
guint32 curr_offset;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
const gchar *str;
|
|
|
|
curr_offset = offset;
|
|
|
|
oct = tvb_get_guint8(tvb, curr_offset);
|
|
|
|
item =
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 1, "%s",
|
|
gsm_dtap_elem_strings[DE_PD_SAPI].strptr);
|
|
|
|
subtree = proto_item_add_subtree(item, ett_gsm_dtap_elem[DE_PD_SAPI]);
|
|
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_spare_bits, tvb, curr_offset<<3, 2, FALSE);
|
|
|
|
switch ((oct & 0x30) >> 4)
|
|
{
|
|
case 0: str = "SAPI 0"; break;
|
|
case 3: str = "SAPI 3"; break;
|
|
default:
|
|
str = "Reserved";
|
|
break;
|
|
}
|
|
|
|
other_decode_bitfield_value(a_bigbuf, oct, 0x30, 8);
|
|
proto_tree_add_text(subtree, tvb, curr_offset, 1,
|
|
"%s : SAPI (Service Access Point Identifier): %s",
|
|
a_bigbuf,
|
|
str);
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_L3_protocol_discriminator, tvb, curr_offset, 1, FALSE);
|
|
|
|
curr_offset++;
|
|
|
|
/* no length check possible */
|
|
|
|
return(curr_offset - offset);
|
|
}
|
|
|
|
/*
|
|
* [3] 10.5.1.11 Priority Level
|
|
*/
|
|
static const value_string gsm_a_call_prio_vals[] = {
|
|
{ 0x00, "no priority applied" },
|
|
{ 0x01, "call priority level 4" },
|
|
{ 0x02, "call priority level 3" },
|
|
{ 0x03, "call priority level 2" },
|
|
{ 0x04, "call priority level 1" },
|
|
{ 0x05, "call priority level 0" },
|
|
{ 0x06, "call priority level B" },
|
|
{ 0x07, "call priority level A" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static guint16
|
|
de_prio(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_)
|
|
{
|
|
guint32 curr_offset;
|
|
|
|
curr_offset = offset;
|
|
|
|
proto_tree_add_item(tree, hf_gsm_a_b8spare, tvb, curr_offset, 1, FALSE);
|
|
proto_tree_add_bits_item(tree, hf_gsm_a_call_prio, tvb, (curr_offset<<3)+5, 3, FALSE);
|
|
curr_offset++;
|
|
|
|
/* no length check possible */
|
|
|
|
return(curr_offset - offset);
|
|
}
|
|
|
|
/*
|
|
* [3] 10.5.1.13 PLMN list
|
|
*/
|
|
guint16
|
|
de_plmn_list(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len)
|
|
{
|
|
guint8 octs[3];
|
|
guint32 curr_offset;
|
|
gchar mcc[4];
|
|
gchar mnc[4];
|
|
guint8 num_plmn;
|
|
|
|
curr_offset = offset;
|
|
|
|
num_plmn = 0;
|
|
while ((len - (curr_offset - offset)) >= 3)
|
|
{
|
|
octs[0] = tvb_get_guint8(tvb, curr_offset);
|
|
octs[1] = tvb_get_guint8(tvb, curr_offset + 1);
|
|
octs[2] = tvb_get_guint8(tvb, curr_offset + 2);
|
|
|
|
mcc_mnc_aux(octs, mcc, mnc);
|
|
|
|
proto_tree_add_text(tree,
|
|
tvb, curr_offset, 3,
|
|
"PLMN[%u] Mobile Country Code (MCC): %s, Mobile Network Code (MNC): %s",
|
|
num_plmn + 1,
|
|
mcc,
|
|
mnc);
|
|
|
|
curr_offset += 3;
|
|
|
|
num_plmn++;
|
|
}
|
|
|
|
if (add_string)
|
|
g_snprintf(add_string, string_len, " - %u PLMN%s",
|
|
num_plmn, plurality(num_plmn, "", "s"));
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, curr_offset - offset);
|
|
|
|
return(curr_offset - offset);
|
|
}
|
|
|
|
guint16 (*common_elem_fcn[])(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len, gchar *add_string, int string_len) = {
|
|
/* Common Information Elements 10.5.1 */
|
|
de_cell_id, /* Cell Identity */
|
|
NULL /* handled inline */, /* Ciphering Key Sequence Number */
|
|
de_lai, /* Location Area Identification */
|
|
de_mid, /* Mobile Identity */
|
|
de_ms_cm_1, /* Mobile Station Classmark 1 */
|
|
de_ms_cm_2, /* Mobile Station Classmark 2 */
|
|
de_ms_cm_3, /* Mobile Station Classmark 3 */
|
|
de_spare_nibble, /* Spare Half Octet */
|
|
de_d_gb_call_ref, /* Descriptive group or broadcast call reference */
|
|
NULL /* handled inline */, /* Group Cipher Key Number */
|
|
de_pd_sapi, /* PD and SAPI $(CCBS)$ */
|
|
/* Pos 10 */
|
|
de_prio /* handled inline */, /* Priority Level */
|
|
de_plmn_list, /* PLMN List */
|
|
NULL, /* NONE */
|
|
};
|
|
|
|
/* Register the protocol with Wireshark */
|
|
void
|
|
proto_register_gsm_a_common(void)
|
|
{
|
|
guint i;
|
|
guint last_offset;
|
|
|
|
/* Setup list of header fields */
|
|
static hf_register_info hf[] =
|
|
{
|
|
{ &hf_gsm_a_common_elem_id,
|
|
{ "Element ID", "gsm_a_common.elem_id",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_imsi,
|
|
{ "IMSI", "gsm_a.imsi",
|
|
FT_STRING, BASE_DEC, 0, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_tmsi,
|
|
{ "TMSI/P-TMSI", "gsm_a.tmsi",
|
|
FT_UINT32, BASE_HEX, 0, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_imei,
|
|
{ "IMEI", "gsm_a.imei",
|
|
FT_STRING, BASE_DEC, 0, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_imeisv,
|
|
{ "IMEISV", "gsm_a.imeisv",
|
|
FT_STRING, BASE_DEC, 0, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_MSC_rev,
|
|
{ "Revision Level","gsm_a.MSC2_rev",
|
|
FT_UINT8,BASE_DEC, VALS(gsm_a_msc_rev_vals), 0x60,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_ES_IND,
|
|
{ "ES IND","gsm_a.MSC2_rev",
|
|
FT_UINT8,BASE_DEC, VALS(ES_IND_vals), 0x10,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_A5_1_algorithm_sup,
|
|
{ "A5/1 algorithm supported","gsm_a.MSC2_rev",
|
|
FT_UINT8,BASE_DEC, VALS(A5_1_algorithm_sup_vals), 0x08,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_RF_power_capability,
|
|
{ "RF Power Capability","gsm_a.MSC2_rev",
|
|
FT_UINT8,BASE_DEC, VALS(RF_power_capability_vals), 0x07,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_ps_sup_cap,
|
|
{ "PS capability (pseudo-synchronization capability)","gsm_a.ps_sup_cap",
|
|
FT_UINT8,BASE_DEC, VALS(ps_sup_cap_vals), 0x40,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_SS_screening_indicator,
|
|
{ "SS Screening Indicator","gsm_a.SS_screening_indicator",
|
|
FT_UINT8,BASE_DEC, VALS(SS_screening_indicator_vals), 0x30,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_SM_capability,
|
|
{ "SM capability (MT SMS pt to pt capability)","gsm_a.SM_cap",
|
|
FT_UINT8,BASE_DEC, VALS(SM_capability_vals), 0x08,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_VBS_notification_rec,
|
|
{ "VBS notification reception ","gsm_a.VBS_notification_rec",
|
|
FT_UINT8,BASE_DEC, VALS(VBS_notification_rec_vals), 0x04,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_VGCS_notification_rec,
|
|
{ "VGCS notification reception ","gsm_a.VGCS_notification_rec",
|
|
FT_UINT8,BASE_DEC, VALS(VGCS_notification_rec_vals), 0x02,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_FC_frequency_cap,
|
|
{ "FC Frequency Capability","gsm_a.FC_frequency_cap",
|
|
FT_UINT8,BASE_DEC, VALS(FC_frequency_cap_vals), 0x01,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_CM3,
|
|
{ "CM3","gsm_a.CM3",
|
|
FT_UINT8,BASE_DEC, VALS(CM3_vals), 0x80,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_LCS_VA_cap,
|
|
{ "LCS VA capability (LCS value added location request notification capability)","gsm_a.LCS_VA_cap",
|
|
FT_UINT8,BASE_DEC, VALS(LCS_VA_cap_vals), 0x20,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_UCS2_treatment,
|
|
{ "UCS2 treatment","gsm_a.UCS2_treatment",
|
|
FT_UINT8,BASE_DEC, VALS(UCS2_treatment_vals), 0x10,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_SoLSA,
|
|
{ "SoLSA","gsm_a.SoLSA",
|
|
FT_UINT8,BASE_DEC, VALS(SoLSA_vals), 0x08,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_CMSP,
|
|
{ "CMSP: CM Service Prompt","gsm_a.CMSP",
|
|
FT_UINT8,BASE_DEC, VALS(CMSP_vals), 0x04,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_A5_7_algorithm_sup,
|
|
{ "A5/7 algorithm supported","gsm_a.A5_7_algorithm_sup",
|
|
FT_UINT8,BASE_DEC, VALS(A5_7_algorithm_sup_vals), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_A5_6_algorithm_sup,
|
|
{ "A5/6 algorithm supported","gsm_a.A5_6_algorithm_sup",
|
|
FT_UINT8,BASE_DEC, VALS(A5_6_algorithm_sup_vals), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_A5_5_algorithm_sup,
|
|
{ "A5/5 algorithm supported","gsm_a.A5_5_algorithm_sup",
|
|
FT_UINT8,BASE_DEC, VALS(A5_5_algorithm_sup_vals), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_A5_4_algorithm_sup,
|
|
{ "A5/4 algorithm supported","gsm_a.A5_4_algorithm_sup",
|
|
FT_UINT8,BASE_DEC, VALS(A5_4_algorithm_sup_vals), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_A5_3_algorithm_sup,
|
|
{ "A5/3 algorithm supported","gsm_a.A5_3_algorithm_sup",
|
|
FT_UINT8,BASE_DEC, VALS(A5_3_algorithm_sup_vals), 0x02,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_A5_2_algorithm_sup,
|
|
{ "A5/2 algorithm supported","gsm_a.A5_2_algorithm_sup",
|
|
FT_UINT8,BASE_DEC, VALS(A5_2_algorithm_sup_vals), 0x01,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_mobile_identity_type,
|
|
{ "Mobile Identity Type","gsm_a.ie.mobileid.type",
|
|
FT_UINT8, BASE_DEC, VALS(mobile_identity_type_vals), 0x07,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_odd_even_ind,
|
|
{ "Odd/even indication","gsm_a.oddevenind",
|
|
FT_UINT8, BASE_DEC, oddevenind_vals, 0x08,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_tmgi_mcc_mnc_ind,
|
|
{ "MCC/MNC indication", "gsm_a.tmgi_mcc_mnc_ind",
|
|
FT_BOOLEAN, 8, TFS(&gsm_a_present_vals), 0x10,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_mbs_ses_id_ind,
|
|
{ "MBMS Session Identity indication", "gsm_a.tmgi_mcc_mnc_ind",
|
|
FT_BOOLEAN, 8, TFS(&gsm_a_present_vals), 0x20,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_mbs_service_id,
|
|
{ "MBMS Service ID", "gsm_a.mbs_service_id",
|
|
FT_BYTES, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_L3_protocol_discriminator,
|
|
{ "Protocol discriminator","gsm_a.L3_protocol_discriminator",
|
|
FT_UINT8,BASE_DEC, VALS(protocol_discriminator_vals), 0x0f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_call_prio,
|
|
{ "Call priority", "gsm_a.call_prio",
|
|
FT_UINT8, BASE_DEC, VALS(gsm_a_call_prio_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_skip_ind,
|
|
{ "Skip Indicator", "gsm_a.skip.ind",
|
|
FT_UINT8, BASE_DEC, NULL, 0xf0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_b7spare,
|
|
{ "Spare","gsm_a.spareb7",
|
|
FT_UINT8,BASE_DEC, NULL, 0x40,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_b8spare,
|
|
{ "Spare","gsm_a.spareb8",
|
|
FT_UINT8,BASE_DEC, NULL, 0x80,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_spare_bits,
|
|
{ "Spare bit(s)","gsm_a.spare_bits",
|
|
FT_UINT8,BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_multi_bnd_sup_fields,
|
|
{ "Multiband supported field","gsm_a.multi_bnd_sup_fields",
|
|
FT_UINT8,BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_pgsm_supported,
|
|
{ "P-GSM Supported", "gsm_a.classmark3.pgsmSupported",
|
|
FT_UINT8, BASE_DEC, VALS(true_false_vals), 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_egsm_supported,
|
|
{ "E-GSM or R-GSM Supported", "gsm_a.classmark3.egsmSupported",
|
|
FT_UINT8, BASE_DEC, VALS(true_false_vals), 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_gsm1800_supported,
|
|
{ "GSM 1800 Supported", "gsm_a.classmark3.gsm1800Supported",
|
|
FT_UINT8, BASE_DEC, VALS(true_false_vals), 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_ass_radio_cap1,
|
|
{ "Associated Radio Capability 1", "gsm_a.classmark3.ass_radio_cap1",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_ass_radio_cap2,
|
|
{ "Associated Radio Capability 2", "gsm_a.classmark3.ass_radio_cap2",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_rsupport,
|
|
{ "R Support", "gsm_a.classmark3.rsupport",
|
|
FT_UINT8, BASE_DEC, VALS(true_false_vals), 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_r_capabilities,
|
|
{ "R-GSM band Associated Radio Capability", "gsm_a.classmark3.r_capabilities",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_multislot_capabilities,
|
|
{ "HSCSD Multi Slot Capability", "gsm_a.classmark3.multislot_capabilities",
|
|
FT_UINT8, BASE_DEC, VALS(true_false_vals), 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_multislot_class,
|
|
{ "HSCSD Multi Slot Class", "gsm_a.classmark3.multislot_cap",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_ucs2_treatment,
|
|
{ "UCS2 treatment","gsm_a.UCS2_treatment",
|
|
FT_UINT8,BASE_DEC, VALS(UCS2_treatment_vals), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_extended_measurement_cap,
|
|
{ "Extended Measurement Capability", "gsm_a.classmark3.ext_meas_cap",
|
|
FT_UINT8, BASE_DEC, VALS(true_false_vals), 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_ms_measurement_capability,
|
|
{ "MS measurement capability", "gsm_a.classmark3.ms_measurement_capability",
|
|
FT_UINT8, BASE_DEC, VALS(true_false_vals), 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_sms_value,
|
|
{ "SMS_VALUE (Switch-Measure-Switch)", "gsm_a.classmark3.sms_value",
|
|
FT_UINT8, BASE_DEC, VALS(gsm_a_sms_vals), 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_sm_value,
|
|
{ "SM_VALUE (Switch-Measure)", "gsm_a.classmark3.sm_value",
|
|
FT_UINT8, BASE_DEC, VALS(gsm_a_sms_vals), 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_gsm_a_geo_loc_type_of_shape,
|
|
{ "Location estimate","gsm_a.gad.location_estimate",
|
|
FT_UINT8,BASE_DEC, VALS(type_of_shape_vals), 0xf0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_sign_of_lat,
|
|
{ "Sign of latitude","gsm_a.gad.sign_of_latitude",
|
|
FT_UINT8,BASE_DEC, VALS(sign_of_latitude_vals), 0x80,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_deg_of_lat,
|
|
{ "Degrees of latitude","gsm_a.gad.sign_of_latitude",
|
|
FT_UINT24,BASE_DEC, NULL, 0x7fffff,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_deg_of_long,
|
|
{ "Degrees of longitude","gsm_a.gad.sign_of_longitude",
|
|
FT_UINT24,BASE_DEC, NULL, 0xffffff,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_uncertainty_code,
|
|
{ "Uncertainty code","gsm_a.gad.uncertainty_code",
|
|
FT_UINT8,BASE_DEC, NULL, 0x7f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_uncertainty_semi_major,
|
|
{ "Uncertainty semi-major","gsm_a.gad.uncertainty_semi_major",
|
|
FT_UINT8,BASE_DEC, NULL, 0x7f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_uncertainty_semi_minor,
|
|
{ "Uncertainty semi-minor","gsm_a.gad.uncertainty_semi_minor",
|
|
FT_UINT8,BASE_DEC, NULL, 0x7f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_orientation_of_major_axis,
|
|
{ "Orientation of major axis","gsm_a.gad.orientation_of_major_axis",
|
|
FT_UINT8,BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_uncertainty_altitude,
|
|
{ "Uncertainty Altitude","gsm_a.gad.uncertainty_altitude",
|
|
FT_UINT8,BASE_DEC, NULL, 0x7f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_confidence,
|
|
{ "Confidence(%)","gsm_a.gad.confidence",
|
|
FT_UINT8,BASE_DEC, NULL, 0x7f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_no_of_points,
|
|
{ "Number of points","gsm_a.gad.no_of_points",
|
|
FT_UINT8,BASE_DEC, NULL, 0x0f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_D,
|
|
{ "D: Direction of Altitude","gsm_a.gad.D",
|
|
FT_UINT16,BASE_DEC, VALS(dir_of_alt_vals), 0x8000,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_altitude,
|
|
{ "Altitude in meters","gsm_a.gad.altitude",
|
|
FT_UINT16,BASE_DEC, NULL, 0x7fff,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_inner_radius,
|
|
{ "Inner radius","gsm_a.gad.altitude",
|
|
FT_UINT16,BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_uncertainty_radius,
|
|
{ "Uncertainty radius","gsm_a.gad.no_of_points",
|
|
FT_UINT8,BASE_DEC, NULL, 0x7f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_offset_angle,
|
|
{ "Offset angle","gsm_a.gad.offset_angle",
|
|
FT_UINT8,BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_gsm_a_geo_loc_included_angle,
|
|
{ "Included angle","gsm_a.gad.included_angle",
|
|
FT_UINT8,BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
#define NUM_INDIVIDUAL_ELEMS 0
|
|
static gint *ett[NUM_INDIVIDUAL_ELEMS +
|
|
NUM_GSM_COMMON_ELEM];
|
|
|
|
last_offset = NUM_INDIVIDUAL_ELEMS;
|
|
|
|
for (i=0; i < NUM_GSM_COMMON_ELEM; i++, last_offset++)
|
|
{
|
|
ett_gsm_common_elem[i] = -1;
|
|
ett[last_offset] = &ett_gsm_common_elem[i];
|
|
}
|
|
|
|
/* Register the protocol name and description */
|
|
|
|
proto_a_common =
|
|
proto_register_protocol("GSM A-I/F COMMON", "GSM COMMON", "gsm_a_common");
|
|
|
|
proto_register_field_array(proto_a_common, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
gsm_a_tap = register_tap("gsm_a");
|
|
}
|
|
|
|
|
|
void
|
|
proto_reg_handoff_gsm_a_common(void)
|
|
{
|
|
}
|