forked from osmocom/wireshark
2419 lines
60 KiB
C
2419 lines
60 KiB
C
/* packet-ansi_801.c
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* Routines for ANSI IS-801 (Location Services (PLD)) dissection
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*
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* Location Services (Position Determination Service)
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* 3GPP2 C.S0022-0 v1.0 IS-801
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*
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* Location Services (Position Determination Service)
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* 3GPP2 C.S0022-0-1 v1.0 IS-801 Addendum
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*
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* Copyright 2004, Michael Lum <mlum [AT] telostech.com>
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* In association with Telos Technology Inc.
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* Copyright 2007, Michael Lum <michael.lum [AT] utstar.com>
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* In association with UTStarcom Inc.
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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 <stdlib.h>
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#include <gmodule.h>
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#include <math.h>
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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# include <netinet/in.h>
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#endif
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#include <epan/packet.h>
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static const char *ansi_proto_name = "ANSI IS-801 (Location Services (PLD))";
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static const char *ansi_proto_name_short = "IS-801";
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#define ANSI_801_FORWARD 0
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#define ANSI_801_REVERSE 1
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/* Initialize the subtree pointers */
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static gint ett_ansi_801 = -1;
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/* Initialize the protocol and registered fields */
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static int proto_ansi_801 = -1;
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static int hf_ansi_801_for_req_type = -1;
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static int hf_ansi_801_for_rsp_type = -1;
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static int hf_ansi_801_rev_req_type = -1;
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static int hf_ansi_801_rev_rsp_type = -1;
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static int hf_ansi_801_for_sess_tag = -1;
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static int hf_ansi_801_rev_sess_tag = -1;
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static int hf_ansi_801_sess_tag = -1;
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static int hf_ansi_801_time_ref_cdma = -1;
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static int hf_ansi_801_lat = -1;
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static int hf_ansi_801_long = -1;
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static int hf_ansi_801_loc_uncrtnty_ang = -1;
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static int hf_ansi_801_loc_uncrtnty_a = -1;
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static int hf_ansi_801_loc_uncrtnty_p = -1;
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static int hf_ansi_801_fix_type = -1;
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static int hf_ansi_801_velocity_incl = -1;
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static int hf_ansi_801_velocity_hor = -1;
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static int hf_ansi_801_heading = -1;
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static int hf_ansi_801_velocity_ver = -1;
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static int hf_ansi_801_clock_incl = -1;
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static int hf_ansi_801_clock_bias = -1;
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static int hf_ansi_801_clock_drift = -1;
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static int hf_ansi_801_height_incl = -1;
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static int hf_ansi_801_height = -1;
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static int hf_ansi_801_loc_uncrtnty_v = -1;
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static int hf_ansi_801_reserved_bits = -1;
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static int hf_ansi_801_bad_sv_present = -1;
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static int hf_ansi_801_num_bad_sv = -1;
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static int hf_ansi_801_bad_sv_prn_num = -1;
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static int hf_ansi_801_dopp_req = -1;
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static int hf_ansi_801_add_dopp_req = -1;
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static int hf_ansi_801_code_ph_par_req = -1;
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static int hf_ansi_801_az_el_req = -1;
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static int hf_ansi_801_pref_resp_qual = -1;
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static int hf_ansi_801_num_fixes = -1;
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static int hf_ansi_801_t_betw_fixes = -1;
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static int hf_ansi_801_offset_req = -1;
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static char bigbuf[1024];
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static dissector_handle_t data_handle;
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static packet_info *g_pinfo;
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static proto_tree *g_tree;
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/* PARAM FUNCTIONS */
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#define EXTRANEOUS_DATA_CHECK(edc_len, edc_max_len) \
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if ((edc_len) > (edc_max_len)) \
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{ \
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proto_tree_add_text(tree, tvb, \
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offset, (edc_len) - (edc_max_len), "Extraneous Data"); \
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}
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#define SHORT_DATA_CHECK(sdc_len, sdc_min_len) \
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if ((sdc_len) < (sdc_min_len)) \
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{ \
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proto_tree_add_text(tree, tvb, \
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offset, (sdc_len), "Short Data (?)"); \
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return; \
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}
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#define EXACT_DATA_CHECK(edc_len, edc_eq_len) \
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if ((edc_len) != (edc_eq_len)) \
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{ \
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proto_tree_add_text(tree, tvb, \
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offset, (edc_len), "Unexpected Data Length"); \
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return; \
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}
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/*
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* Table 3.2-4 for PD_MSG_TYPE = '0000000'
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*/
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static const value_string for_req_type_strings[] = {
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{ 0, "Reserved" },
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{ 2, "Request MS Information" },
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{ 3, "Request Autonomous Measurement Weighting Factors" },
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{ 4, "Request Pseudorange Measurement" },
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{ 5, "Request Pilot Phase Measurement" },
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{ 1, "Request Location Response" },
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{ 6, "Request Time Offset Measurement" },
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{ 7, "Request Cancellation" },
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{ 0, NULL },
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};
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#define NUM_FOR_REQ_TYPE (sizeof(for_req_type_strings)/sizeof(value_string))
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static gint ett_for_req_type[NUM_FOR_REQ_TYPE];
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static const value_string for_rsp_type_strings[] = {
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{ 0, "Reject" },
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{ 2, "Provide BS Capabilities" },
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{ 4, "Provide GPS Acquisition Assistance" },
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{ 6, "Provide GPS Location Assistance Spherical Coordinates" },
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{ 7, "Provide GPS Location Assistance Cartesian Coordinates" },
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{ 5, "Provide GPS Sensitivity Assistance" },
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{ 3, "Provide Base Station Almanac" },
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{ 8, "Provide GPS Almanac" },
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{ 9, "Provide GPS Ephemeris" },
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{ 10, "Provide GPS Navigation Message Bits" },
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{ 1, "Provide Location Response" },
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{ 11, "Provide GPS Almanac Correction" },
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{ 12, "Provide GPS Satellite Health Information" },
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{ 0, NULL },
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};
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#define NUM_FOR_RSP_TYPE (sizeof(for_rsp_type_strings)/sizeof(value_string))
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static gint ett_for_rsp_type[NUM_FOR_RSP_TYPE];
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static const value_string rev_rsp_type_strings[] = {
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{ 0, "Reject" },
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{ 2, "Provide MS Information" },
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{ 3, "Provide Autonomous Measurement Weighting Factors" },
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{ 4, "Provide Pseudorange Measurement" },
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{ 5, "Provide Pilot Phase Measurement" },
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{ 1, "Provide Location Response" },
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{ 6, "Provide Time Offset Measurement" },
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{ 7, "Provide Cancellation Acknowledgement" },
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{ 0, NULL },
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};
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#define NUM_REV_RSP_TYPE (sizeof(rev_rsp_type_strings)/sizeof(value_string))
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static gint ett_rev_rsp_type[NUM_REV_RSP_TYPE];
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/*
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* Table 2.2-5 for PD_MSG_TYPE = '0000000'
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*/
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static const value_string rev_req_type_strings[] = {
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{ 0, "Reserved" },
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{ 2, "Request BS Capabilities" },
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{ 4, "Request GPS Acquisition Assistance" },
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{ 6, "Request GPS Location Assistance" },
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{ 7, "Reserved" },
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{ 5, "Request GPS Sensitivity Assistance" },
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{ 3, "Request Base Station Almanac" },
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{ 8, "Request GPS Almanac" },
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{ 9, "Request GPS Ephemeris" },
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{ 10, "Request GPS Navigation Message Bits" },
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{ 1, "Request Location Response" },
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{ 11, "Request GPS Almanac Correction" },
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{ 12, "Request GPS Satellite Health Information" },
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{ 0, NULL },
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};
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#define NUM_REV_REQ_TYPE (sizeof(rev_req_type_strings)/sizeof(value_string))
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static gint ett_rev_req_type[NUM_REV_REQ_TYPE];
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static void
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for_req_pseudo_meas(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
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{
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guint32 bit_offset, spare_bits;
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guint32 saved_offset, value;
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SHORT_DATA_CHECK(len, 3);
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saved_offset = offset;
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bit_offset = offset << 3;
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/* PREF_RESP_QUAL */
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proto_tree_add_bits_item(tree, hf_ansi_801_pref_resp_qual, tvb, bit_offset, 3, FALSE);
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bit_offset += 3;
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/* NUM_FIXES */
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value = tvb_get_bits8(tvb, bit_offset, 8) + 1;
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proto_tree_add_uint_bits_format_value(tree, hf_ansi_801_num_fixes, tvb, bit_offset, 8, value, "%u", value);
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bit_offset += 8;
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/* T_BETW_FIXES */
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value = tvb_get_bits8(tvb, bit_offset, 8);
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proto_tree_add_uint_bits_format_value(tree, hf_ansi_801_t_betw_fixes, tvb, bit_offset, 8, value, "%u seconds", value);
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bit_offset += 8;
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/* OFFSET_REQ */
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proto_tree_add_bits_item(tree, hf_ansi_801_offset_req, tvb, bit_offset++, 1, FALSE);
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if(bit_offset & 0x07)
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{
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spare_bits = 8 - (bit_offset & 0x07);
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proto_tree_add_bits_item(tree, hf_ansi_801_reserved_bits, tvb, bit_offset, spare_bits, FALSE);
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bit_offset += spare_bits;
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}
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offset = bit_offset >> 3;
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EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
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}
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static void
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for_req_pilot_ph_meas(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
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{
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guint32 value;
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guint32 saved_offset;
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SHORT_DATA_CHECK(len, 3);
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saved_offset = offset;
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value = tvb_get_ntoh24(tvb, offset);
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other_decode_bitfield_value(bigbuf, value >> 16, 0xe0, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Preferred response quality, %u",
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bigbuf,
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(value & 0xe00000) >> 21);
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other_decode_bitfield_value(bigbuf, value >> 16, 0x1f, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Number of fixes (MSB), %u",
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bigbuf,
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(value & 0x1fe000) >> 13);
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other_decode_bitfield_value(bigbuf, value >> 8, 0xe0, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Number of fixes (LSB)",
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bigbuf);
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other_decode_bitfield_value(bigbuf, value >> 8, 0x1f, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Time between fixes (MSB), %u",
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bigbuf,
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(value & 0x001fe0) >> 5);
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other_decode_bitfield_value(bigbuf, value, 0xe0, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Time between fixes (LSB)",
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bigbuf);
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other_decode_bitfield_value(bigbuf, value, 0x10, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Offset %srequested",
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bigbuf,
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(value & 0x10) ? "" : "not ");
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other_decode_bitfield_value(bigbuf, value, 0x08, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Desired pilot phase resolution: at least %s PN chip resolution",
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bigbuf,
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(value & 0x08) ? "1/8th" : "1");
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other_decode_bitfield_value(bigbuf, value, 0x07, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Reserved",
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bigbuf);
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offset += 3;
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EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
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}
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static void
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for_req_loc_response(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
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{
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guint32 value;
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guint32 saved_offset;
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SHORT_DATA_CHECK(len, 3);
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saved_offset = offset;
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value = tvb_get_ntoh24(tvb, offset);
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other_decode_bitfield_value(bigbuf, value >> 16, 0xe0, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Preferred response quality, %u",
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bigbuf,
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(value & 0xe00000) >> 21);
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other_decode_bitfield_value(bigbuf, value >> 16, 0x1f, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Number of fixes (MSB), %u",
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bigbuf,
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(value & 0x1fe000) >> 13);
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other_decode_bitfield_value(bigbuf, value >> 8, 0xe0, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Number of fixes (LSB)",
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bigbuf);
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other_decode_bitfield_value(bigbuf, value >> 8, 0x1f, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Time between fixes (MSB), %u",
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bigbuf,
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(value & 0x001fe0) >> 5);
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other_decode_bitfield_value(bigbuf, value, 0xe0, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Time between fixes (LSB)",
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bigbuf);
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other_decode_bitfield_value(bigbuf, value, 0x10, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Height information %srequested",
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bigbuf,
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(value & 0x10) ? "" : "not ");
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other_decode_bitfield_value(bigbuf, value, 0x08, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Clock correction for GPS time %srequested",
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bigbuf,
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(value & 0x08) ? "" : "not ");
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other_decode_bitfield_value(bigbuf, value, 0x04, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Velocity information %srequested",
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bigbuf,
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(value & 0x04) ? "" : "not ");
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other_decode_bitfield_value(bigbuf, value, 0x03, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Reserved",
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bigbuf);
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offset += 3;
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EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
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}
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static void
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for_req_time_off_meas(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
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{
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guint8 oct;
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guint8 bit_mask;
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guint32 saved_offset;
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SHORT_DATA_CHECK(len, 1);
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saved_offset = offset;
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oct = tvb_get_guint8(tvb, offset);
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other_decode_bitfield_value(bigbuf, oct, 0x80, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Use action time indicator",
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bigbuf);
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if (oct & 0x80)
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{
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other_decode_bitfield_value(bigbuf, oct, 0x7e, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Action time, %u",
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bigbuf,
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(oct & 0x7e) >> 1);
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bit_mask = 0x01;
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}
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else
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{
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bit_mask = 0x7f;
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}
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other_decode_bitfield_value(bigbuf, oct, bit_mask, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Reserved",
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bigbuf);
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offset++;
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EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
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}
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static void
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for_req_cancel(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
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{
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guint8 oct;
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guint32 saved_offset;
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const gchar *str = NULL;
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gint idx;
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SHORT_DATA_CHECK(len, 1);
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saved_offset = offset;
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oct = tvb_get_guint8(tvb, offset);
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str = match_strval_idx((oct & 0xf0) >> 4, for_req_type_strings, &idx);
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if (str == NULL)
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{
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str = "Reserved";
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}
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other_decode_bitfield_value(bigbuf, oct, 0xf0, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Cancellation Type: (%u) %s",
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bigbuf,
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(oct & 0xf0) >> 4,
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str);
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other_decode_bitfield_value(bigbuf, oct, 0x0f, 8);
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proto_tree_add_text(tree, tvb, offset, 1,
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"%s : Reserved",
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bigbuf);
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offset++;
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EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
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}
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|
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static void
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for_reject(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
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{
|
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guint8 oct;
|
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guint32 saved_offset;
|
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const gchar *str = NULL;
|
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gint idx;
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|
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saved_offset = offset;
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|
|
SHORT_DATA_CHECK(len, 1);
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
str = match_strval_idx((oct & 0xf0) >> 4, rev_req_type_strings, &idx);
|
|
if (str == NULL)
|
|
{
|
|
str = "Reserved";
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reject request type: (%u) %s",
|
|
bigbuf,
|
|
(oct & 0xf0) >> 4,
|
|
str);
|
|
|
|
switch ((oct & 0x0e) >> 1)
|
|
{
|
|
case 0x00: str = "Capability not supported by the base station"; break;
|
|
case 0x01: str = "Capability normally supported by the base station but temporarily not available or not enabled"; break;
|
|
default: str = "Reserved"; break;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x0e, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reject reason: %s",
|
|
bigbuf,
|
|
str);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x01, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
for_pr_bs_cap(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 oct;
|
|
guint32 saved_offset;
|
|
|
|
saved_offset = offset;
|
|
|
|
SHORT_DATA_CHECK(len, 2);
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xfc, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : BS_LS_REV",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x02, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : GPSC_ID: GPS capability indicator",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x01, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : AFLTC_ID: Advanced forward link trilateration capability indicator",
|
|
bigbuf);
|
|
|
|
offset++;
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
if (oct == 0x00)
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"APDC_ID: Autonomous position determination capability indicator: None");
|
|
}
|
|
else
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"APDC_ID: Autonomous position determination capability indicator: Autonomous Location Technology Identifier %u",
|
|
oct);
|
|
}
|
|
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
for_pr_gps_sense_ass(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 oct;
|
|
guint8 num_dr_p;
|
|
guint32 value;
|
|
guint32 saved_offset;
|
|
|
|
saved_offset = offset;
|
|
|
|
SHORT_DATA_CHECK(len, 4);
|
|
|
|
value = tvb_get_ntohs(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0xffe0, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : REF_BIT_NUM: %u",
|
|
bigbuf,
|
|
(value & 0xffe0) >> 5);
|
|
|
|
num_dr_p = (value & 0x001e) >> 1;
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x001e, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : NUM_DR_P: Number of data records in this part: %u",
|
|
bigbuf,
|
|
num_dr_p);
|
|
|
|
offset += 2;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x0001, 16);
|
|
value = ((value & 0x0001) << 7) | ((oct & 0xfe) >> 1);
|
|
|
|
proto_tree_add_text(tree, tvb, offset - 2, 2,
|
|
"%s : DR_SIZE: Data record size in 2-bit units (MSB): %u",
|
|
bigbuf,
|
|
value);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xfe, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : DR_SIZE: (LSB)",
|
|
bigbuf);
|
|
|
|
value = oct;
|
|
offset++;
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x01, 8);
|
|
value = ((value & 0x0001) << 2) | ((oct & 0xc0) >> 6);
|
|
|
|
proto_tree_add_text(tree, tvb, offset - 1, 1,
|
|
"%s : PART_NUM: The part number (MSB): %u",
|
|
bigbuf,
|
|
value);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xc0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : PART_NUM: (LSB)",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x38, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : TOTAL_PARTS: Total number of parts: %u",
|
|
bigbuf,
|
|
(oct & 0x38) >> 3);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x07, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Data records (MSB)",
|
|
bigbuf);
|
|
|
|
offset++;
|
|
|
|
proto_tree_add_text(tree, tvb, offset, (len - (offset - saved_offset)),
|
|
"%s : Data records (LSB) + Reserved",
|
|
bigbuf);
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
for_pr_gps_almanac(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 num_sv;
|
|
guint32 value;
|
|
guint32 saved_offset;
|
|
|
|
saved_offset = offset;
|
|
|
|
SHORT_DATA_CHECK(len, 4);
|
|
|
|
value = tvb_get_ntohl(tvb, offset);
|
|
num_sv = (value & 0xfc000000) >> 26;
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0xfc000000, 32);
|
|
proto_tree_add_text(tree, tvb, offset, 4,
|
|
"%s : NUM_SV_P: Number of satellites in this part: %u",
|
|
bigbuf,
|
|
num_sv);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x03fc0000, 32);
|
|
proto_tree_add_text(tree, tvb, offset, 4,
|
|
"%s : WEEK_NUM: The GPS week number of the almanac: %u",
|
|
bigbuf,
|
|
(value & 0x03fc0000) >> 18);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x0003fc00, 32);
|
|
proto_tree_add_text(tree, tvb, offset, 4,
|
|
"%s : TOA: The reference time of the almanac: %u",
|
|
bigbuf,
|
|
(value & 0x0003fc00) >> 10);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000003e0, 32);
|
|
proto_tree_add_text(tree, tvb, offset, 4,
|
|
"%s : PART_NUM: The part number: %u",
|
|
bigbuf,
|
|
(value & 0x000003e0) >> 5);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x0000001f, 32);
|
|
proto_tree_add_text(tree, tvb, offset, 4,
|
|
"%s : TOTAL_PARTS: The total number of parts: %u",
|
|
bigbuf,
|
|
(value & 0x0000001f));
|
|
|
|
offset += 4;
|
|
|
|
proto_tree_add_text(tree, tvb, offset, (len - (offset - saved_offset)),
|
|
"%u Data records + Reserved",
|
|
num_sv);
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
for_pr_gps_nav_msg_bits(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 num_sv;
|
|
guint32 value;
|
|
guint32 saved_offset;
|
|
|
|
saved_offset = offset;
|
|
|
|
SHORT_DATA_CHECK(len, 2);
|
|
|
|
value = tvb_get_ntohs(tvb, offset);
|
|
num_sv = (value & 0xfc00) >> 10;
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0xfc00, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : NUM_SV_P: Number of satellites in this part: %u",
|
|
bigbuf,
|
|
num_sv);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x03e0, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : PART_NUM: The part number: %u",
|
|
bigbuf,
|
|
(value & 0x03e0) >> 5);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x001f, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : TOTAL_PARTS: The total number of parts: %u",
|
|
bigbuf,
|
|
(value & 0x001f));
|
|
|
|
offset += 2;
|
|
|
|
proto_tree_add_text(tree, tvb, offset, (len - (offset - saved_offset)),
|
|
"%u SUBF_4_5_INCL ... Data records + Reserved",
|
|
num_sv);
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
/*
|
|
* shared for both forward/reverse directions
|
|
*/
|
|
static const true_false_string ansi_801_fix_type_vals = {
|
|
"3D",
|
|
"2D"
|
|
};
|
|
|
|
static void
|
|
pr_loc_response(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint32 bit_offset, spare_bits;
|
|
guint32 value;
|
|
float fl_value;
|
|
guint32 saved_offset;
|
|
guint64 fix_type, velocity_incl, clock_incl, height_incl;
|
|
const gchar *str = NULL;
|
|
|
|
SHORT_DATA_CHECK(len, 11);
|
|
saved_offset = offset;
|
|
bit_offset = offset << 3;
|
|
|
|
/* TIME_REF_CDMA */
|
|
value = tvb_get_bits16(tvb, bit_offset, 14, FALSE);
|
|
proto_tree_add_uint_bits_format_value(tree, hf_ansi_801_time_ref_cdma, tvb, bit_offset, 14, value * 50,
|
|
"%u frames (0x%04x)", value * 50, value);
|
|
bit_offset += 14;
|
|
|
|
/* LAT */
|
|
value = tvb_get_bits32(tvb, bit_offset, 25, FALSE);
|
|
fl_value = (float)(-90.0 + ((float)value * 180 / 33554432));
|
|
proto_tree_add_float_bits_format_value(tree, hf_ansi_801_lat, tvb, bit_offset, 25, fl_value,
|
|
"%.5f degrees %s (0x%08x)", fabs(fl_value), fl_value < 0 ? "South" : "North", value);
|
|
bit_offset += 25;
|
|
|
|
/* LONG */
|
|
value = tvb_get_bits32(tvb, bit_offset, 26, FALSE);
|
|
fl_value = (float)(-180.0 + ((float)value * 180 / 33554432));
|
|
proto_tree_add_float_bits_format_value(tree, hf_ansi_801_long, tvb, bit_offset, 26, fl_value,
|
|
"%.5f degrees %s (0x%08x)", fabs(fl_value), fl_value < 0 ? "West" : "East", value);
|
|
bit_offset += 26;
|
|
|
|
/* LOC_UNCRTNTY_ANG */
|
|
value = tvb_get_bits8(tvb, bit_offset, 4);
|
|
fl_value = (float)(5.625 * value);
|
|
proto_tree_add_float_bits_format_value(tree, hf_ansi_801_loc_uncrtnty_ang, tvb, bit_offset, 4, fl_value,
|
|
"%.5f degrees (0x%02x)", fl_value, value);
|
|
bit_offset += 4;
|
|
|
|
/* LOC_UNCRTNTY_A */
|
|
value = tvb_get_bits8(tvb, bit_offset, 5);
|
|
switch (value)
|
|
{
|
|
case 0x1e: str = "> 12288.00 meters"; break;
|
|
case 0x1f: str = "Not computable"; break;
|
|
default:
|
|
fl_value = (float)(0.5 * (1 << (value >> 1)));
|
|
if (value & 0x01)
|
|
fl_value *= 1.5;
|
|
str = ep_strdup_printf("%.2f meters", fl_value);
|
|
}
|
|
proto_tree_add_uint_bits_format_value(tree, hf_ansi_801_loc_uncrtnty_a, tvb, bit_offset, 5, value,
|
|
"%s (0x%02x)", str, value);
|
|
bit_offset += 5;
|
|
|
|
/* LOC_UNCRTNTY_P */
|
|
value = tvb_get_bits8(tvb, bit_offset, 5);
|
|
switch (value)
|
|
{
|
|
case 0x1e: str = "> 12288.00 meters"; break;
|
|
case 0x1f: str = "Not computable"; break;
|
|
default:
|
|
fl_value = (float)(0.5 * (1 << (value >> 1)));
|
|
if (value & 0x01)
|
|
fl_value *= 1.5;
|
|
str = ep_strdup_printf("%.2f meters", fl_value);
|
|
}
|
|
proto_tree_add_uint_bits_format_value(tree, hf_ansi_801_loc_uncrtnty_p, tvb, bit_offset, 5, value,
|
|
"%s (0x%02x)", str, value);
|
|
bit_offset += 5;
|
|
|
|
/* FIX_TYPE */
|
|
proto_tree_add_bits_ret_val(tree, hf_ansi_801_fix_type, tvb, bit_offset++, 1, &fix_type, FALSE);
|
|
|
|
/* VELOCITY_INCL */
|
|
proto_tree_add_bits_ret_val(tree, hf_ansi_801_velocity_incl, tvb, bit_offset++, 1, &velocity_incl, FALSE);
|
|
|
|
|
|
if(velocity_incl)
|
|
{
|
|
/* VELOCITY_HOR */
|
|
value = tvb_get_bits16(tvb, bit_offset, 9, FALSE);
|
|
fl_value = (float)(0.25 * value);
|
|
proto_tree_add_float_bits_format_value(tree, hf_ansi_801_velocity_hor, tvb, bit_offset, 9, fl_value,
|
|
"%.2f m/s (0x%04x)", fl_value, value);
|
|
bit_offset += 9;
|
|
|
|
/* HEADING */
|
|
value = tvb_get_bits16(tvb, bit_offset, 10, FALSE);
|
|
fl_value = (float)value * 360 / 1024;
|
|
proto_tree_add_float_bits_format_value(tree, hf_ansi_801_heading, tvb, bit_offset, 10, fl_value,
|
|
"%.3f degrees (0x%04x)", fl_value, value);
|
|
bit_offset += 10;
|
|
|
|
if(fix_type)
|
|
{
|
|
/* VELOCITY_VER */
|
|
value = tvb_get_bits8(tvb, bit_offset, 8);
|
|
fl_value = (float)(-64 + 0.5 * value);
|
|
proto_tree_add_float_bits_format_value(tree, hf_ansi_801_velocity_ver, tvb, bit_offset, 8, fl_value,
|
|
"%.1f m/s (0x%02x)", fl_value, value);
|
|
bit_offset += 8;
|
|
}
|
|
}
|
|
|
|
/* CLOCK_INCL */
|
|
proto_tree_add_bits_ret_val(tree, hf_ansi_801_clock_incl, tvb, bit_offset++, 1, &clock_incl, FALSE);
|
|
|
|
if(clock_incl)
|
|
{
|
|
/* CLOCK_BIAS */
|
|
value = tvb_get_bits32(tvb, bit_offset, 18, FALSE);
|
|
proto_tree_add_int_bits_format_value(tree, hf_ansi_801_clock_bias, tvb, bit_offset, 18, (gint32)value - 13000,
|
|
"%d ns (0x%06x)", (gint32)value - 13000, value);
|
|
bit_offset += 18;
|
|
|
|
/* CLOCK_DRIFT */
|
|
value = tvb_get_bits16(tvb, bit_offset, 16, FALSE);
|
|
proto_tree_add_int_bits_format_value(tree, hf_ansi_801_clock_drift, tvb, bit_offset, 16, (gint16)value,
|
|
"%d ppb (ns/s) (0x%04x)", (gint16)value, value);
|
|
bit_offset += 16;
|
|
}
|
|
|
|
/* HEIGHT_INCL */
|
|
proto_tree_add_bits_ret_val(tree, hf_ansi_801_height_incl, tvb, bit_offset++, 1, &height_incl, FALSE);
|
|
|
|
if(height_incl)
|
|
{
|
|
/* HEIGHT */
|
|
value = tvb_get_bits16(tvb, bit_offset, 14, FALSE);
|
|
proto_tree_add_int_bits_format_value(tree, hf_ansi_801_height, tvb, bit_offset, 14, (gint32)value - 500,
|
|
"%d m (0x%04x)", (gint32)value - 500, value);
|
|
bit_offset += 14;
|
|
|
|
/* LOC_UNCRTNTY_V */
|
|
value = tvb_get_bits8(tvb, bit_offset, 5);
|
|
switch (value)
|
|
{
|
|
case 0x1e: str = "> 12288.00 meters"; break;
|
|
case 0x1f: str = "Not computable"; break;
|
|
default:
|
|
fl_value = (float)(0.5 * (1 << (value >> 1)));
|
|
if (value & 0x01)
|
|
fl_value *= 1.5;
|
|
str = ep_strdup_printf("%.2f meters", fl_value);
|
|
}
|
|
proto_tree_add_uint_bits_format_value(tree, hf_ansi_801_loc_uncrtnty_v, tvb, bit_offset, 5, value,
|
|
"%s (0x%02x)", str, value);
|
|
bit_offset += 5;
|
|
}
|
|
|
|
if(bit_offset & 0x07)
|
|
{
|
|
spare_bits = 8 - (bit_offset & 0x07);
|
|
proto_tree_add_bits_item(tree, hf_ansi_801_reserved_bits, tvb, bit_offset, spare_bits, FALSE);
|
|
bit_offset += spare_bits;
|
|
}
|
|
|
|
offset = bit_offset >> 3;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
for_pr_loc_response(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
pr_loc_response(tvb, tree, len, offset);
|
|
}
|
|
|
|
static void
|
|
for_pr_gps_sat_health(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint32 bit_offset, spare_bits;
|
|
guint32 i;
|
|
guint32 saved_offset, num_bad_sv, bad_sv_prn_num;
|
|
guint64 bad_sv_present;
|
|
|
|
SHORT_DATA_CHECK(len, 1);
|
|
saved_offset = offset;
|
|
bit_offset = offset << 3;
|
|
|
|
/* BAD_SV_PRESENT */
|
|
proto_tree_add_bits_ret_val(tree, hf_ansi_801_bad_sv_present, tvb, bit_offset++, 1, &bad_sv_present, FALSE);
|
|
|
|
if (bad_sv_present)
|
|
{
|
|
/* NUM_BAD_SV */
|
|
num_bad_sv = tvb_get_bits8(tvb, bit_offset, 4) + 1;
|
|
proto_tree_add_uint_bits_format_value(tree, hf_ansi_801_num_bad_sv, tvb, bit_offset, 4, num_bad_sv,
|
|
"%u", num_bad_sv);
|
|
bit_offset += 4;
|
|
|
|
for (i=0; i < num_bad_sv; i++)
|
|
{
|
|
/* BAD_SV_PRN_NUM */
|
|
bad_sv_prn_num = tvb_get_bits8(tvb, bit_offset, 5) + 1;
|
|
proto_tree_add_uint_bits_format_value(tree, hf_ansi_801_bad_sv_prn_num, tvb, bit_offset, 5, bad_sv_prn_num,
|
|
"%u", bad_sv_prn_num);
|
|
bit_offset += 5;
|
|
}
|
|
}
|
|
|
|
if(bit_offset & 0x07)
|
|
{
|
|
spare_bits = 8 - (bit_offset & 0x07);
|
|
proto_tree_add_bits_item(tree, hf_ansi_801_reserved_bits, tvb, bit_offset, spare_bits, FALSE);
|
|
bit_offset += spare_bits;
|
|
}
|
|
|
|
offset = bit_offset >> 3;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_req_gps_acq_ass(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint32 saved_offset;
|
|
guint32 bit_offset;
|
|
|
|
SHORT_DATA_CHECK(len, 1);
|
|
saved_offset = offset;
|
|
bit_offset = offset << 3;
|
|
|
|
proto_tree_add_bits_item(tree, hf_ansi_801_dopp_req, tvb, bit_offset++, 1, FALSE);
|
|
proto_tree_add_bits_item(tree, hf_ansi_801_add_dopp_req, tvb, bit_offset++, 1, FALSE);
|
|
proto_tree_add_bits_item(tree, hf_ansi_801_code_ph_par_req, tvb, bit_offset++, 1, FALSE);
|
|
proto_tree_add_bits_item(tree, hf_ansi_801_az_el_req, tvb, bit_offset++, 1, FALSE);
|
|
proto_tree_add_bits_item(tree, hf_ansi_801_reserved_bits, tvb, bit_offset, 4, FALSE);
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_req_gps_loc_ass(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 oct;
|
|
guint32 saved_offset;
|
|
|
|
SHORT_DATA_CHECK(len, 1);
|
|
|
|
saved_offset = offset;
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x80, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Coordinate type requested: %s coordinates",
|
|
bigbuf,
|
|
(oct & 0x80) ? "Spherical" : "Cartesian");
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x7f, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_req_bs_alm(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 oct;
|
|
guint32 saved_offset;
|
|
|
|
SHORT_DATA_CHECK(len, 1);
|
|
|
|
saved_offset = offset;
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x80, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Extended base station almanac %srequested",
|
|
bigbuf,
|
|
(oct & 0x80) ? "" : "not ");
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x7f, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_req_gps_ephemeris(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 oct;
|
|
guint32 saved_offset;
|
|
|
|
SHORT_DATA_CHECK(len, 1);
|
|
|
|
saved_offset = offset;
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x80, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Alpha and Beta parameters %srequested",
|
|
bigbuf,
|
|
(oct & 0x80) ? "" : "not ");
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x7f, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_req_gps_nav_msg_bits(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 oct;
|
|
guint32 saved_offset;
|
|
|
|
SHORT_DATA_CHECK(len, 1);
|
|
|
|
saved_offset = offset;
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x80, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Subframes 4 and 5 %srequested",
|
|
bigbuf,
|
|
(oct & 0x80) ? "" : "not ");
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x7f, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_req_loc_response(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 oct;
|
|
guint32 saved_offset;
|
|
|
|
SHORT_DATA_CHECK(len, 1);
|
|
|
|
saved_offset = offset;
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x80, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Height information %srequested",
|
|
bigbuf,
|
|
(oct & 0x80) ? "" : "not ");
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x40, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Clock correction for GPS time %srequested",
|
|
bigbuf,
|
|
(oct & 0x40) ? "" : "not ");
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x20, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Velocity information %srequested",
|
|
bigbuf,
|
|
(oct & 0x20) ? "" : "not ");
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x1f, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_req_gps_alm_correction(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint32 saved_offset;
|
|
|
|
SHORT_DATA_CHECK(len, 2);
|
|
|
|
saved_offset = offset;
|
|
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"Time of almanac (in units of 4096 seconds)");
|
|
|
|
offset++;
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"GPS week number (8 least significant bits)");
|
|
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_reject(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 oct;
|
|
guint32 saved_offset;
|
|
const gchar *str = NULL;
|
|
gint idx;
|
|
|
|
saved_offset = offset;
|
|
|
|
SHORT_DATA_CHECK(len, 1);
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
str = match_strval_idx((oct & 0xf0) >> 4, for_req_type_strings, &idx);
|
|
if (str == NULL)
|
|
{
|
|
str = "Reserved";
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reject request type: (%u) %s",
|
|
bigbuf,
|
|
(oct & 0xf0) >> 4,
|
|
str);
|
|
|
|
switch ((oct & 0x0e) >> 1)
|
|
{
|
|
case 0x00: str = "Capability not supported by the mobile station"; break;
|
|
case 0x01: str = "Capability normally supported by the mobile station but temporarily not available or not enabled"; break;
|
|
default: str = "Reserved"; break;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x0e, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reject reason: %s",
|
|
bigbuf,
|
|
str);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x01, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_pr_ms_information(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint32 value;
|
|
guint32 saved_offset;
|
|
const gchar *str = NULL;
|
|
|
|
saved_offset = offset;
|
|
|
|
SHORT_DATA_CHECK(len, 5);
|
|
|
|
value = tvb_get_ntohs(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0xfc00, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : MS_LS_REV",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x03c0, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : MS_MODE",
|
|
bigbuf);
|
|
|
|
switch (value & 0x003f)
|
|
{
|
|
case 0x00: str = "Full Chip Measurement Capability"; break;
|
|
case 0x01: str = "Half Chip Measurement Capability"; break;
|
|
case 0x02: str = "Quarter Chip Measurement Capability"; break;
|
|
case 0x03: str = "Eighth Chip Measurement Capability"; break;
|
|
case 0x04: str = "One Sixteenth Chip Measurement Capability"; break;
|
|
default: str = "Reserved"; break;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x003f, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : PILOT_PH_CAP: (%u) %s",
|
|
bigbuf,
|
|
value & 0x3f,
|
|
str);
|
|
|
|
offset += 2;
|
|
value = tvb_get_ntoh24(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0xf80000, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : GPS_ACQ_CAP: Reserved",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x040000, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : GPS_ACQ_CAP: GPS Autonomous Acquisition Capable",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x020000, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : GPS_ACQ_CAP: GPS Almanac Correction",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x010000, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : GPS_ACQ_CAP: GPS Navigation Message Bits",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x008000, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : GPS_ACQ_CAP: GPS Ephemeris",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x004000, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : GPS_ACQ_CAP: GPS Almanac",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x002000, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : GPS_ACQ_CAP: GPS Sensitivity Assistance",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x001000, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : GPS_ACQ_CAP: GPS Acquisition Assistance",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000800, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : LOC_CALC_CAP: Pre-programmed Location",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000700, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : LOC_CALC_CAP: Reserved",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000080, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : LOC_CALC_CAP: Hybrid GPS and AFLT Location Calculation Capable",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000040, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : LOC_CALC_CAP: Autonomous Location Calculation Capable",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000020, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : LOC_CALC_CAP: Location Calculation Capable using GPS Almanac Correction",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000010, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : LOC_CALC_CAP: Location Calculation Capable using GPS Ephemeris Assistance",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000008, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : LOC_CALC_CAP: Location Calculation Capable using GPS Almanac Assistance",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000004, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : LOC_CALC_CAP: Advanced Forward Link Trilateration (AFLT) Location Calculation Capable",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000002, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : LOC_CALC_CAP: Location Calculation Capable using Location Assistance - Cartesian",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000001, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : LOC_CALC_CAP: Location Calculation Capable using Location Assistance - Spherical",
|
|
bigbuf);
|
|
|
|
offset += 3;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_pr_loc_response(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
pr_loc_response(tvb, tree, len, offset);
|
|
}
|
|
|
|
static void
|
|
rev_pr_time_off_meas(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint32 value;
|
|
guint32 saved_offset;
|
|
|
|
saved_offset = offset;
|
|
|
|
SHORT_DATA_CHECK(len, 6);
|
|
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"TIME_REF_MS: The time of validity of the parameters reported in this response element.");
|
|
|
|
offset += 3;
|
|
value = tvb_get_ntoh24(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0xff8000, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : REF_PN: (%u)",
|
|
bigbuf,
|
|
(value & 0xff8000) >> 15);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x007ffe, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : MOB_SYS_T_OFFSET: (%u)",
|
|
bigbuf,
|
|
(value & 0x007ffe) >> 1);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000001, 24);
|
|
proto_tree_add_text(tree, tvb, offset, 3,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
offset += 3;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void
|
|
rev_pr_can_ack(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset)
|
|
{
|
|
guint8 oct;
|
|
guint32 saved_offset;
|
|
const gchar *str = NULL;
|
|
gint idx;
|
|
|
|
saved_offset = offset;
|
|
|
|
SHORT_DATA_CHECK(len, 1);
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
str = match_strval_idx((oct & 0xf0) >> 4, for_req_type_strings, &idx);
|
|
if (str == NULL)
|
|
{
|
|
str = "Reserved";
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Cancellation Type: (%u) %s",
|
|
bigbuf,
|
|
(oct & 0xf0) >> 4,
|
|
str);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x08, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : No outstanding request element",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x07, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
offset++;
|
|
|
|
EXTRANEOUS_DATA_CHECK(len, offset - saved_offset);
|
|
}
|
|
|
|
static void (*for_req_type_fcn[])(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset) = {
|
|
NULL, /* Reserved */
|
|
NULL, /* no data */ /* Request MS Information */
|
|
NULL, /* no data */ /* Request Autonomous Measurement Weighting Factors */
|
|
for_req_pseudo_meas, /* Request Pseudorange Measurement */
|
|
for_req_pilot_ph_meas, /* Request Pilot Phase Measurement */
|
|
for_req_loc_response, /* Request Location Response */
|
|
for_req_time_off_meas, /* Request Time Offset Measurement */
|
|
for_req_cancel, /* Request Cancellation */
|
|
NULL, /* NONE */
|
|
};
|
|
|
|
static void (*for_rsp_type_fcn[])(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset) = {
|
|
for_reject, /* Reject */
|
|
for_pr_bs_cap, /* Provide BS Capabilities */
|
|
NULL, /* Provide GPS Acquisition Assistance */
|
|
NULL, /* Provide GPS Location Assistance Spherical Coordinates */
|
|
NULL, /* Provide GPS Location Assistance Cartesian Coordinates */
|
|
for_pr_gps_sense_ass, /* Provide GPS Sensitivity Assistance */
|
|
NULL, /* Provide Base Station Almanac */
|
|
for_pr_gps_almanac, /* Provide GPS Almanac */
|
|
NULL, /* Provide GPS Ephemeris */
|
|
for_pr_gps_nav_msg_bits, /* Provide GPS Navigation Message Bits */
|
|
for_pr_loc_response, /* Provide Location Response */
|
|
NULL, /* Provide GPS Almanac Correction */
|
|
for_pr_gps_sat_health, /* Provide GPS Satellite Health Information */
|
|
NULL, /* NONE */
|
|
};
|
|
|
|
static void (*rev_req_type_fcn[])(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset) = {
|
|
NULL, /* Reserved */
|
|
NULL, /* no data */ /* Request BS Capabilities */
|
|
rev_req_gps_acq_ass, /* Request GPS Acquisition Assistance */
|
|
rev_req_gps_loc_ass, /* Request GPS Location Assistance */
|
|
NULL, /* Reserved */
|
|
NULL, /* no data */ /* Request GPS Sensitivity Assistance */
|
|
rev_req_bs_alm, /* Request Base Station Almanac */
|
|
NULL, /* no data */ /* Request GPS Almanac */
|
|
rev_req_gps_ephemeris, /* Request GPS Ephemeris */
|
|
rev_req_gps_nav_msg_bits, /* Request GPS Navigation Message Bits */
|
|
rev_req_loc_response, /* Request Location Response */
|
|
rev_req_gps_alm_correction, /* Request GPS Almanac Correction */
|
|
NULL, /* no data */ /* Request GPS Satellite Health Information */
|
|
NULL, /* NONE */
|
|
};
|
|
|
|
static void (*rev_rsp_type_fcn[])(tvbuff_t *tvb, proto_tree *tree, guint len, guint32 offset) = {
|
|
rev_reject, /* Reject */
|
|
rev_pr_ms_information, /* Provide MS Information */
|
|
NULL, /* Provide Autonomous Measurement Weighting Factors */
|
|
NULL, /* Provide Pseudorange Measurement */
|
|
NULL, /* Provide Pilot Phase Measurement */
|
|
rev_pr_loc_response, /* Provide Location Response */
|
|
rev_pr_time_off_meas, /* Provide Time Offset Measurement */
|
|
rev_pr_can_ack, /* Provide Cancellation Acknowledgement */
|
|
NULL, /* NONE */
|
|
};
|
|
|
|
static void
|
|
for_request(tvbuff_t *tvb, proto_tree *tree, guint32 *offset_p, guint8 pd_msg_type)
|
|
{
|
|
guint32 offset;
|
|
guint8 oct;
|
|
const gchar *str = NULL;
|
|
gint idx;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
|
|
offset = *offset_p;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
if (pd_msg_type == 0x00)
|
|
{
|
|
other_decode_bitfield_value(bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
str = match_strval_idx(oct & 0x0f, for_req_type_strings, &idx);
|
|
if (str == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x0f, 8);
|
|
item =
|
|
proto_tree_add_uint_format(tree, hf_ansi_801_for_req_type, tvb, offset,
|
|
1, oct & 0x0f,
|
|
"%s : Request Type, %s (%u)",
|
|
bigbuf,
|
|
str,
|
|
oct & 0x0f);
|
|
}
|
|
else
|
|
{
|
|
/* TBD */
|
|
/*
|
|
* It is unclear from TIA-801-A how this was meant to be decoded.
|
|
* Are the elements supposed to be byte aligned?
|
|
*/
|
|
return;
|
|
}
|
|
|
|
subtree = proto_item_add_subtree(item, ett_for_req_type[idx]);
|
|
|
|
offset++;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
proto_tree_add_text(subtree, tvb, offset, 1,
|
|
"Length: %u",
|
|
oct);
|
|
|
|
offset++;
|
|
|
|
if (oct > 0)
|
|
{
|
|
if (for_req_type_fcn[idx] != NULL)
|
|
{
|
|
(*for_req_type_fcn[idx])(tvb, subtree, oct, offset);
|
|
}
|
|
else
|
|
{
|
|
proto_tree_add_text(subtree, tvb, offset, oct,
|
|
"Data");
|
|
}
|
|
}
|
|
|
|
*offset_p = offset + oct;
|
|
}
|
|
|
|
static void
|
|
for_response(tvbuff_t *tvb, proto_tree *tree, guint32 *offset_p)
|
|
{
|
|
guint32 offset;
|
|
guint8 oct;
|
|
const gchar *str = NULL;
|
|
gint idx;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
|
|
offset = *offset_p;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xe0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x10, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Unsolicited response indicator",
|
|
bigbuf);
|
|
|
|
str = match_strval_idx(oct & 0x0f, for_rsp_type_strings, &idx);
|
|
|
|
if (str == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x0f, 8);
|
|
item =
|
|
proto_tree_add_uint_format(tree, hf_ansi_801_for_rsp_type, tvb, offset,
|
|
1, oct & 0x0f,
|
|
"%s : Response Type, %s (%u)",
|
|
bigbuf,
|
|
str,
|
|
oct & 0x0f);
|
|
|
|
subtree = proto_item_add_subtree(item, ett_for_rsp_type[idx]);
|
|
|
|
offset++;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
proto_tree_add_text(subtree, tvb, offset, 1,
|
|
"Length: %u",
|
|
oct);
|
|
|
|
offset++;
|
|
|
|
if (for_rsp_type_fcn[idx] != NULL)
|
|
{
|
|
(*for_rsp_type_fcn[idx])(tvb, subtree, oct, offset);
|
|
}
|
|
else
|
|
{
|
|
proto_tree_add_text(subtree, tvb, offset, oct,
|
|
"Data");
|
|
}
|
|
|
|
*offset_p = offset + oct;
|
|
}
|
|
|
|
static void
|
|
rev_request(tvbuff_t *tvb, proto_tree *tree, guint32 *offset_p, guint8 pd_msg_type)
|
|
{
|
|
guint32 offset;
|
|
guint8 oct;
|
|
const gchar *str = NULL;
|
|
gint idx;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
|
|
offset = *offset_p;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
if (pd_msg_type == 0x00)
|
|
{
|
|
other_decode_bitfield_value(bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
str = match_strval_idx(oct & 0x0f, rev_req_type_strings, &idx);
|
|
if (str == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x0f, 8);
|
|
item =
|
|
proto_tree_add_uint_format(tree, hf_ansi_801_rev_req_type, tvb, offset,
|
|
1, oct & 0x0f,
|
|
"%s : Request Type, %s (%u)",
|
|
bigbuf,
|
|
str,
|
|
oct & 0x0f);
|
|
}
|
|
else
|
|
{
|
|
/* TBD */
|
|
/*
|
|
* It is unclear from TIA-801-A how this was meant to be decoded.
|
|
* Are the elements supposed to be byte aligned?
|
|
*/
|
|
return;
|
|
}
|
|
|
|
subtree = proto_item_add_subtree(item, ett_rev_req_type[idx]);
|
|
|
|
offset++;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
proto_tree_add_text(subtree, tvb, offset, 1,
|
|
"Length: %u",
|
|
oct);
|
|
|
|
offset++;
|
|
|
|
if (rev_req_type_fcn[idx] != NULL)
|
|
{
|
|
(*rev_req_type_fcn[idx])(tvb, subtree, oct, offset);
|
|
}
|
|
else
|
|
{
|
|
proto_tree_add_text(subtree, tvb, offset, oct,
|
|
"Data");
|
|
}
|
|
|
|
*offset_p = offset + oct;
|
|
}
|
|
|
|
static void
|
|
rev_response(tvbuff_t *tvb, proto_tree *tree, guint32 *offset_p)
|
|
{
|
|
guint32 offset;
|
|
guint8 oct;
|
|
const gchar *str = NULL;
|
|
gint idx;
|
|
proto_tree *subtree;
|
|
proto_item *item;
|
|
|
|
offset = *offset_p;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xe0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Reserved",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x10, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Unsolicited response indicator",
|
|
bigbuf);
|
|
|
|
str = match_strval_idx(oct & 0x0f, rev_rsp_type_strings, &idx);
|
|
|
|
if (str == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x0f, 8);
|
|
item =
|
|
proto_tree_add_uint_format(tree, hf_ansi_801_rev_rsp_type, tvb, offset,
|
|
1, oct & 0x0f,
|
|
"%s : Response Type, %s (%u)",
|
|
bigbuf,
|
|
str,
|
|
oct & 0x0f);
|
|
|
|
subtree = proto_item_add_subtree(item, ett_rev_rsp_type[idx]);
|
|
|
|
offset++;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
proto_tree_add_text(subtree, tvb, offset, 1,
|
|
"Length: %u",
|
|
oct);
|
|
|
|
offset++;
|
|
|
|
if (rev_rsp_type_fcn[idx] != NULL)
|
|
{
|
|
(*rev_rsp_type_fcn[idx])(tvb, subtree, oct, offset);
|
|
}
|
|
else
|
|
{
|
|
proto_tree_add_text(subtree, tvb, offset, oct,
|
|
"Data");
|
|
}
|
|
|
|
*offset_p = offset + oct;
|
|
}
|
|
|
|
static void
|
|
dissect_ansi_801_for_message(tvbuff_t *tvb, proto_tree *tree)
|
|
{
|
|
guint32 value;
|
|
guint32 offset;
|
|
guint8 oct, num_req, num_rsp, pd_msg_type;
|
|
guint rem_len;
|
|
const gchar *str = NULL;
|
|
proto_item *hidden_item;
|
|
|
|
offset = 0;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x80, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Session Start",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x40, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Session End",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x20, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Session Source",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x1f, 8);
|
|
proto_tree_add_uint_format(tree, hf_ansi_801_for_sess_tag, tvb, offset,
|
|
1, oct & 0x1f,
|
|
"%s : Session Tag (%u)",
|
|
bigbuf,
|
|
oct & 0x1f);
|
|
|
|
hidden_item = proto_tree_add_uint(tree, hf_ansi_801_sess_tag, tvb, offset,
|
|
1, oct & 0x1f);
|
|
PROTO_ITEM_SET_HIDDEN(hidden_item);
|
|
|
|
offset++;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
pd_msg_type = oct;
|
|
|
|
switch (pd_msg_type)
|
|
{
|
|
case 0x00: str = "Position Determination Data Message"; break;
|
|
case 0x01: str = "Position Determination Data Message"; break;
|
|
case 0xff: str = "Reserved"; break;
|
|
default:
|
|
if (pd_msg_type < 0xc0)
|
|
{
|
|
str = "Reserved for future standardization";
|
|
}
|
|
else
|
|
{
|
|
str =
|
|
"Available for manufacturer-specific Position Determination "
|
|
"Data Message definition as specified in TSB-58";
|
|
}
|
|
break;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, pd_msg_type, 0xff, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : PD Message Type, %s (%u)",
|
|
bigbuf,
|
|
str,
|
|
pd_msg_type);
|
|
|
|
offset++;
|
|
|
|
if ((pd_msg_type != 0x00) &&
|
|
(pd_msg_type != 0x01))
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, -1,
|
|
"Reserved/Proprietary/Future Data");
|
|
return;
|
|
}
|
|
|
|
if (pd_msg_type == 0x01)
|
|
{
|
|
value = tvb_get_ntohs(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0xffc0, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : PD Message Length, (%u)",
|
|
bigbuf,
|
|
(value & 0xffc0) >> 6);
|
|
|
|
switch ((value & 0x0030) >> 4)
|
|
{
|
|
case 0x00: str = "No Regulatory service"; break;
|
|
case 0x01: str = "Emergency service"; break;
|
|
default: str = "Reserved"; break;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x0030, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : Regulatory Services Indicator - %s (%u)",
|
|
bigbuf,
|
|
str,
|
|
(value & 0x0030) >> 4);
|
|
|
|
num_req = value & 0x000f;
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000f, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : Number Requests (%u)",
|
|
bigbuf,
|
|
num_req);
|
|
|
|
offset += 2;
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
num_rsp = oct & 0xf0;
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Number Responses (%u)",
|
|
bigbuf,
|
|
num_rsp);
|
|
|
|
offset++;
|
|
}
|
|
else
|
|
{
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
num_req = (oct & 0xf0) >> 4;
|
|
num_rsp = oct & 0x0f;
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Number Requests (%u)",
|
|
bigbuf,
|
|
num_req);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x0f, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Number Responses (%u)",
|
|
bigbuf,
|
|
num_rsp);
|
|
}
|
|
|
|
offset++;
|
|
rem_len = tvb_length_remaining(tvb, offset);
|
|
|
|
while ((num_req > 0) &&
|
|
(rem_len >= 2))
|
|
{
|
|
for_request(tvb, tree, &offset, pd_msg_type);
|
|
|
|
rem_len = tvb_length_remaining(tvb, offset);
|
|
num_req--;
|
|
}
|
|
|
|
if (num_req != 0)
|
|
{
|
|
proto_tree_add_text(tree, tvb,
|
|
offset, -1, "Short Data (?)");
|
|
return;
|
|
}
|
|
|
|
while ((num_rsp > 0) &&
|
|
(rem_len >= 2))
|
|
{
|
|
for_response(tvb, tree, &offset);
|
|
|
|
rem_len = tvb_length_remaining(tvb, offset);
|
|
num_rsp--;
|
|
}
|
|
|
|
if (num_rsp != 0)
|
|
{
|
|
proto_tree_add_text(tree, tvb,
|
|
offset, -1, "Short Data (?)");
|
|
return;
|
|
}
|
|
|
|
if (rem_len > 0)
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, rem_len,
|
|
"Extraneous Data");
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_ansi_801_rev_message(tvbuff_t *tvb, proto_tree *tree)
|
|
{
|
|
guint32 value;
|
|
guint32 offset;
|
|
guint8 oct, num_req, num_rsp, pd_msg_type;
|
|
guint rem_len;
|
|
const gchar *str = NULL;
|
|
proto_item *hidden_item;
|
|
|
|
offset = 0;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x80, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Session Start",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x40, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Session End",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x20, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Session Source",
|
|
bigbuf);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x1f, 8);
|
|
proto_tree_add_uint_format(tree, hf_ansi_801_rev_sess_tag, tvb, offset,
|
|
1, oct & 0x1f,
|
|
"%s : Session Tag (%u)",
|
|
bigbuf,
|
|
oct & 0x1f);
|
|
|
|
hidden_item = proto_tree_add_uint(tree, hf_ansi_801_sess_tag, tvb, offset,
|
|
1, oct & 0x1f);
|
|
PROTO_ITEM_SET_HIDDEN(hidden_item);
|
|
|
|
offset++;
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
pd_msg_type = oct;
|
|
|
|
switch (pd_msg_type)
|
|
{
|
|
case 0x00: str = "Position Determination Data Message"; break;
|
|
case 0x01: str = "Position Determination Data Message"; break;
|
|
case 0xff: str = "Reserved"; break;
|
|
default:
|
|
if (pd_msg_type < 0xc0)
|
|
{
|
|
str = "Reserved for future standardization";
|
|
}
|
|
else
|
|
{
|
|
str =
|
|
"Available for manufacturer-specific Position Determination "
|
|
"Data Message definition as specified in TSB-58";
|
|
}
|
|
break;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, pd_msg_type, 0xff, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : PD Message Type, %s (%u)",
|
|
bigbuf,
|
|
str,
|
|
pd_msg_type);
|
|
|
|
offset++;
|
|
|
|
if ((pd_msg_type != 0x00) &&
|
|
(pd_msg_type != 0x01))
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, -1,
|
|
"Reserved/Proprietary/Future Data");
|
|
return;
|
|
}
|
|
|
|
if (pd_msg_type == 0x01)
|
|
{
|
|
value = tvb_get_ntohs(tvb, offset);
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0xffc0, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : PD Message Length, (%u)",
|
|
bigbuf,
|
|
(value & 0xffc0) >> 6);
|
|
|
|
switch ((value & 0x0030) >> 4)
|
|
{
|
|
case 0x00: str = "No Regulatory service"; break;
|
|
case 0x01: str = "Emergency service"; break;
|
|
default: str = "Reserved"; break;
|
|
}
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x0030, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : Regulatory Services Indicator - %s (%u)",
|
|
bigbuf,
|
|
str,
|
|
(value & 0x0030) >> 4);
|
|
|
|
num_req = value & 0x000f;
|
|
|
|
other_decode_bitfield_value(bigbuf, value, 0x000f, 16);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"%s : Number Requests (%u)",
|
|
bigbuf,
|
|
num_req);
|
|
|
|
offset += 2;
|
|
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
num_rsp = oct & 0xf0;
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Number Responses (%u)",
|
|
bigbuf,
|
|
num_rsp);
|
|
|
|
offset++;
|
|
}
|
|
else
|
|
{
|
|
oct = tvb_get_guint8(tvb, offset);
|
|
|
|
num_req = (oct & 0xf0) >> 4;
|
|
num_rsp = oct & 0x0f;
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0xf0, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Number Requests (%u)",
|
|
bigbuf,
|
|
num_req);
|
|
|
|
other_decode_bitfield_value(bigbuf, oct, 0x0f, 8);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"%s : Number Responses (%u)",
|
|
bigbuf,
|
|
num_rsp);
|
|
|
|
offset++;
|
|
}
|
|
|
|
rem_len = tvb_length_remaining(tvb, offset);
|
|
|
|
while ((num_req > 0) &&
|
|
(rem_len >= 2))
|
|
{
|
|
rev_request(tvb, tree, &offset, pd_msg_type);
|
|
|
|
rem_len = tvb_length_remaining(tvb, offset);
|
|
num_req--;
|
|
}
|
|
|
|
if (num_req != 0)
|
|
{
|
|
proto_tree_add_text(tree, tvb,
|
|
offset, -1, "Short Data (?)");
|
|
return;
|
|
}
|
|
|
|
while ((num_rsp > 0) &&
|
|
(rem_len >= 2))
|
|
{
|
|
rev_response(tvb, tree, &offset);
|
|
|
|
rem_len = tvb_length_remaining(tvb, offset);
|
|
num_rsp--;
|
|
}
|
|
|
|
if (num_rsp != 0)
|
|
{
|
|
proto_tree_add_text(tree, tvb,
|
|
offset, -1, "Short Data (?)");
|
|
return;
|
|
}
|
|
|
|
if (rem_len > 0)
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, rem_len,
|
|
"Extraneous Data");
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_ansi_801(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_item *ansi_801_item;
|
|
proto_tree *ansi_801_tree = NULL;
|
|
|
|
g_pinfo = pinfo;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, ansi_proto_name_short);
|
|
|
|
/* In the interest of speed, if "tree" is NULL, don't do any work not
|
|
* necessary to generate protocol tree items.
|
|
*/
|
|
if (tree)
|
|
{
|
|
g_tree = tree;
|
|
|
|
/*
|
|
* create the ansi_801 protocol tree
|
|
*/
|
|
ansi_801_item =
|
|
proto_tree_add_protocol_format(tree, proto_ansi_801, tvb, 0, -1,
|
|
"%s %s Link",
|
|
ansi_proto_name,
|
|
(pinfo->match_uint == ANSI_801_FORWARD) ? "Forward" : "Reverse");
|
|
|
|
ansi_801_tree =
|
|
proto_item_add_subtree(ansi_801_item, ett_ansi_801);
|
|
|
|
if (pinfo->match_uint == ANSI_801_FORWARD)
|
|
{
|
|
dissect_ansi_801_for_message(tvb, ansi_801_tree);
|
|
}
|
|
else
|
|
{
|
|
dissect_ansi_801_rev_message(tvb, ansi_801_tree);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* Register the protocol with Wireshark */
|
|
void
|
|
proto_register_ansi_801(void)
|
|
{
|
|
guint i;
|
|
gint last_offset;
|
|
|
|
/* Setup list of header fields */
|
|
static hf_register_info hf[] =
|
|
{
|
|
{ &hf_ansi_801_for_req_type,
|
|
{ "Forward Request Type", "ansi_801.for_req_type",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_for_rsp_type,
|
|
{ "Forward Response Type", "ansi_801.for_rsp_type",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_rev_req_type,
|
|
{ "Reverse Request Type", "ansi_801.rev_req_type",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_rev_rsp_type,
|
|
{ "Reverse Response Type", "ansi_801.rev_rsp_type",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_for_sess_tag,
|
|
{ "Forward Session Tag", "ansi_801.for_sess_tag",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_rev_sess_tag,
|
|
{ "Reverse Session Tag", "ansi_801.rev_sess_tag",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_sess_tag,
|
|
{ "Session Tag", "ansi_801.sess_tag",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_time_ref_cdma,
|
|
{ "CDMA system time at the time the solution is valid (TIME_REF_CDMA)", "ansi_801.time_ref_cdma",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_lat,
|
|
{ "Latitude (LAT)", "ansi_801.lat",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_long,
|
|
{ "Longitude (LONG)", "ansi_801.long",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_loc_uncrtnty_ang,
|
|
{ "Angle of axis with respect to True North for pos uncertainty (LOC_UNCRTNTY_ANG)", "ansi_801.loc_uncrtnty_ang",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_loc_uncrtnty_a,
|
|
{ "Std dev of axis along angle specified for pos uncertainty (LOC_UNCRTNTY_A)", "ansi_801.loc_uncrtnty_a",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_loc_uncrtnty_p,
|
|
{ "Std dev of axis perpendicular to angle specified for pos uncertainty (LOC_UNCRTNTY_P)", "ansi_801.loc_uncrtnty_p",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_fix_type,
|
|
{ "Fix type (FIX_TYPE)", "ansi_801.fix_type",
|
|
FT_BOOLEAN, 8, TFS(&ansi_801_fix_type_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_velocity_incl,
|
|
{ "Velocity information included (VELOCITY_INCL)", "ansi_801.velocity_incl",
|
|
FT_BOOLEAN, 8, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_velocity_hor,
|
|
{ "Horizontal velocity magnitude (VELOCITY_HOR)", "ansi_801.velocity_hor",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_heading,
|
|
{ "Heading (HEADING)", "ansi_801.heading",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_velocity_ver,
|
|
{ "Vertical velocity (VELOCITY_VER)", "ansi_801.velocity_ver",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_clock_incl,
|
|
{ "Clock information included (CLOCK_INCL)", "ansi_801.clock_incl",
|
|
FT_BOOLEAN, 8, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_clock_bias,
|
|
{ "Clock bias (CLOCK_BIAS)", "ansi_801.clock_bias",
|
|
FT_INT24, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_clock_drift,
|
|
{ "Clock drift (CLOCK_DRIFT)", "ansi_801.clock_drift",
|
|
FT_INT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_height_incl,
|
|
{ "Height information included (HEIGHT_INCL)", "ansi_801.height_incl",
|
|
FT_BOOLEAN, 8, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_height,
|
|
{ "Height (HEIGHT)", "ansi_801.height",
|
|
FT_INT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_loc_uncrtnty_v,
|
|
{ "Std dev of vertical error for pos uncertainty (LOC_UNCRTNTY_V)", "ansi_801.loc_uncrtnty_v",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_reserved_bits,
|
|
{ "Reserved bit(s)","ansi_801.reerved_bits",
|
|
FT_UINT8,BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_bad_sv_present,
|
|
{ "Bad GPS satellites present (BAD_SV_PRESENT)", "ansi_801.bad_sv_present",
|
|
FT_BOOLEAN, 8, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_num_bad_sv,
|
|
{ "Number of bad GPS satellites (NUM_BAD_SV)", "ansi_801.num_bad_sv",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_bad_sv_prn_num,
|
|
{ "Satellite PRN number (SV_PRN_NUM)", "ansi_801.bad_sv_prn_num",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_dopp_req,
|
|
{ "Doppler (0th order) term requested (DOPP_REQ)", "ansi_801.dopp_req",
|
|
FT_BOOLEAN, 8, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_add_dopp_req,
|
|
{ "Additional Doppler terms requested (ADD_DOPP_REQ)", "ansi_801.add_dopp_req",
|
|
FT_BOOLEAN, 8, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_code_ph_par_req,
|
|
{ "Code phase parameters requested (CODE_PH_PAR_REQ)", "ansi_801.code_ph_par_req",
|
|
FT_BOOLEAN, 8, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_az_el_req,
|
|
{ "Azimuth and elevation angle requested (AZ_EL_REQ)", "ansi_801.az_el_req",
|
|
FT_BOOLEAN, 8, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_pref_resp_qual,
|
|
{ "Preferred response quality (PREF_RESP_QUAL)", "ansi_801.pref_resp_qual",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_num_fixes,
|
|
{ "Number of fixes (NUM_FIXES)", "ansi_801.num_fixes",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_t_betw_fixes,
|
|
{ "Time between fixes (T_BETW_FIXES)", "ansi_801.t_betw_fixes",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ansi_801_offset_req,
|
|
{ "Offset requested (OFFSET_REQ)", "ansi_801.offset_req",
|
|
FT_BOOLEAN, 8, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
};
|
|
|
|
|
|
/* Setup protocol subtree array */
|
|
#define NUM_INDIVIDUAL_PARAMS 1
|
|
gint *ett[NUM_INDIVIDUAL_PARAMS+NUM_FOR_REQ_TYPE+NUM_FOR_RSP_TYPE+NUM_REV_REQ_TYPE+NUM_REV_RSP_TYPE];
|
|
|
|
ett[0] = &ett_ansi_801;
|
|
|
|
last_offset = NUM_INDIVIDUAL_PARAMS;
|
|
|
|
for (i=0; i < NUM_FOR_REQ_TYPE; i++, last_offset++)
|
|
{
|
|
ett_for_req_type[i] = -1;
|
|
ett[last_offset] = &ett_for_req_type[i];
|
|
}
|
|
|
|
for (i=0; i < NUM_FOR_RSP_TYPE; i++, last_offset++)
|
|
{
|
|
ett_for_rsp_type[i] = -1;
|
|
ett[last_offset] = &ett_for_rsp_type[i];
|
|
}
|
|
|
|
for (i=0; i < NUM_REV_REQ_TYPE; i++, last_offset++)
|
|
{
|
|
ett_rev_req_type[i] = -1;
|
|
ett[last_offset] = &ett_rev_req_type[i];
|
|
}
|
|
|
|
for (i=0; i < NUM_REV_RSP_TYPE; i++, last_offset++)
|
|
{
|
|
ett_rev_rsp_type[i] = -1;
|
|
ett[last_offset] = &ett_rev_rsp_type[i];
|
|
}
|
|
|
|
/* Register the protocol name and description */
|
|
proto_ansi_801 =
|
|
proto_register_protocol(ansi_proto_name, "ANSI IS-801 (Location Services (PLD))", "ansi_801");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_ansi_801, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
/* subdissector code */
|
|
register_dissector("ansi_801", dissect_ansi_801, proto_ansi_801);
|
|
}
|
|
|
|
|
|
void
|
|
proto_reg_handoff_ansi_801(void)
|
|
{
|
|
dissector_handle_t ansi_801_handle;
|
|
|
|
ansi_801_handle = create_dissector_handle(dissect_ansi_801, proto_ansi_801);
|
|
|
|
dissector_add_uint("ansi_map.pld", ANSI_801_FORWARD, ansi_801_handle);
|
|
dissector_add_uint("ansi_map.pld", ANSI_801_REVERSE, ansi_801_handle);
|
|
dissector_add_uint("ansi_a.pld", ANSI_801_FORWARD, ansi_801_handle);
|
|
dissector_add_uint("ansi_a.pld", ANSI_801_REVERSE, ansi_801_handle);
|
|
|
|
data_handle = find_dissector("data");
|
|
}
|