nexmon – Rev 1
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/* packet-ppi-antenna.c
* Routines for PPI-GEOLOCATION-ANNTENNA dissection
* Copyright 2010, Harris Corp, jellch@harris.com
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* Copied from packet-radiotap.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/expert.h>
#include "packet-ppi-geolocation-common.h"
enum ppi_antenna_type {
PPI_ANTENNA_ANTFLAGS = 0, /* Various flags about the antenna in use, Polarity, etc */
PPI_ANTENNA_GAINDB = 1, /* Antenna gain, in dBi */
PPI_ANTENNA_HORIZBW = 2, /* Antenna beamwidth, horizontal */
PPI_ANTENNA_VERTBW = 3, /* Antenna beamwidth, vertical */
PPI_ANTENNA_PGAIN = 4, /* precision gain */
PPI_ANTENNA_BEAMID = 5, /* beam identifier (electrically steerable only) */
PPI_ANTENNA_RES6 = 6,
PPI_ANTENNA_RES7 = 7,
PPI_ANTENNA_SERIALNUM = 26,
PPI_ANTENNA_MODELSTR = 27, /*32 bytes, fixed length, null terminated model of antenna */
PPI_ANTENNA_DESCSTR = 28, /*32 bytes, fixed length, null terminated description of what the antenna is for */
PPI_ANTENNA_APPID = 29, /*4-byte identifier*/
PPI_ANTENNA_APPDATA = 30, /* 60-byte app-id specific data*/
PPI_ANTENNA_EXT = 31 /* Indicates n extended bitmap follows */
};
#define PPI_ANTENNA_MAXTAGLEN 187 /* increase as fields are added */
void proto_register_ppi_antenna(void);
/* protocol */
static int proto_ppi_antenna = -1;
static int hf_ppi_antenna_version = -1;
static int hf_ppi_antenna_pad = -1;
static int hf_ppi_antenna_length = -1;
static int hf_ppi_antenna_present = -1;
static int hf_ppi_antenna_flags = -1;
static int hf_ppi_antenna_gaindb = -1;
static int hf_ppi_antenna_horizbw = -1;
static int hf_ppi_antenna_vertbw = -1;
static int hf_ppi_antenna_pgain= -1;
static int hf_ppi_antenna_beamid= -1;
static int hf_ppi_antenna_serialnum= -1;
static int hf_ppi_antenna_modelname = -1;
static int hf_ppi_antenna_descstr = -1;
static int hf_ppi_antenna_appspecific_num = -1; /* 4-byte tag no */
static int hf_ppi_antenna_appspecific_data = -1; /* 60 byte arbitrary data */
/* "Present" flags */
/* These represent decoded-bits in the gui */
static int hf_ppi_antenna_present_flags= -1;
static int hf_ppi_antenna_present_gaindb = -1;
static int hf_ppi_antenna_present_horizbw = -1;
static int hf_ppi_antenna_present_vertbw= -1;
static int hf_ppi_antenna_present_pgain= -1;
static int hf_ppi_antenna_present_beamid= -1;
static int hf_ppi_antenna_present_serialnum= -1;
static int hf_ppi_antenna_present_modelname = -1;
static int hf_ppi_antenna_present_descstr = -1;
static int hf_ppi_antenna_present_appspecific_num = -1;
static int hf_ppi_antenna_present_appspecific_data = -1;
static int hf_ppi_antenna_present_ext = -1;
/*These are the few defined AntennaFlags bits*/
static int hf_ppi_antennaflags_mimo= -1;
static int hf_ppi_antennaflags_horizpol= -1;
static int hf_ppi_antennaflags_vertpol= -1;
static int hf_ppi_antennaflags_circpol_l= -1;
static int hf_ppi_antennaflags_circpol_r= -1;
static int hf_ppi_antennaflags_steer_elec= -1;
static int hf_ppi_antennaflags_steer_mech= -1;
/* These represent arrow-dropdownthings in the gui */
static gint ett_ppi_antenna = -1;
static gint ett_ppi_antenna_present = -1;
static gint ett_ppi_antennaflags= -1;
static expert_field ei_ppi_antenna_present_bit = EI_INIT;
static expert_field ei_ppi_antenna_version = EI_INIT;
static expert_field ei_ppi_antenna_length = EI_INIT;
static int
dissect_ppi_antenna(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) {
/* The fixed values up front */
guint32 version;
guint length;
gint length_remaining;
proto_tree *ppi_antenna_tree;
proto_tree *pt;
proto_item *antenna_line, *version_item, *length_item;
/* bits */
int bit;
guint32 present, next_present;
/* values actually read out, for displaying */
guint8 gaindb;
guint16 beamid;
guint32 t_hbw, t_vbw, t_pgain, t_appspecific_num; /* temporary conversions */
gdouble horizbw, vertbw, pgain;
gchar *curr_str;
int offset = 0;
static const int * ppi_antenna_present_flags[] = {
&hf_ppi_antenna_present_flags,
&hf_ppi_antenna_present_gaindb,
&hf_ppi_antenna_present_horizbw,
&hf_ppi_antenna_present_vertbw,
&hf_ppi_antenna_present_pgain,
&hf_ppi_antenna_present_beamid,
&hf_ppi_antenna_present_serialnum,
&hf_ppi_antenna_present_modelname,
&hf_ppi_antenna_present_descstr,
&hf_ppi_antenna_present_appspecific_num,
&hf_ppi_antenna_present_appspecific_data,
&hf_ppi_antenna_present_ext,
NULL
};
static const int * ppi_antenna_ant_flags[] = {
&hf_ppi_antennaflags_mimo,
&hf_ppi_antennaflags_horizpol,
&hf_ppi_antennaflags_vertpol,
&hf_ppi_antennaflags_circpol_l,
&hf_ppi_antennaflags_circpol_r,
&hf_ppi_antennaflags_steer_elec,
&hf_ppi_antennaflags_steer_mech,
NULL
};
/* Clear out stuff in the info column */
col_clear(pinfo->cinfo,COL_INFO);
/* pull out the first three fields of the BASE-GEOTAG-HEADER */
version = tvb_get_guint8(tvb, offset);
length = tvb_get_letohs(tvb, offset+2);
present = tvb_get_letohl(tvb, offset+4);
/* Setup basic column info */
col_add_fstr(pinfo->cinfo, COL_INFO, "PPI Antenna info v%u, Length %u",
version, length);
/* Create the basic dissection tree*/
antenna_line = proto_tree_add_protocol_format(tree, proto_ppi_antenna,
tvb, 0, length, "Antenna: ");
ppi_antenna_tree = proto_item_add_subtree(antenna_line, ett_ppi_antenna);
version_item = proto_tree_add_uint(ppi_antenna_tree, hf_ppi_antenna_version,
tvb, offset, 1, version);
proto_tree_add_item(ppi_antenna_tree, hf_ppi_antenna_pad,
tvb, offset + 1, 1, ENC_LITTLE_ENDIAN);
length_item = proto_tree_add_uint(ppi_antenna_tree, hf_ppi_antenna_length,
tvb, offset + 2, 2, length);
/* We support v1 and v2 of Antenna tags (identical) */
if (! (version == 1 || version == 2) ) {
expert_add_info_format(pinfo, version_item, &ei_ppi_antenna_version, "Invalid version (got %d, expected 1 or 2)", version);
}
length_remaining = length;
/* minimum length check, should atleast be a fixed-size geotagging-base header*/
if (length_remaining < PPI_GEOBASE_MIN_HEADER_LEN) {
/*
* Base-geotag-header (Radiotap lookalike) is shorter than the fixed-length portion
* plus one "present" bitset.
*/
expert_add_info_format(pinfo, length_item, &ei_ppi_antenna_length, "Invalid PPI-Antenna length - minimum length is 8");
return 2;
}
/* perform max length sanity checking */
if (length > PPI_ANTENNA_MAXTAGLEN ) {
expert_add_info_format(pinfo, length_item, &ei_ppi_antenna_length, "Invalid PPI-Antenna length (got %d, %d max\n)", length, PPI_ANTENNA_MAXTAGLEN);
return 2;
}
/* Subtree for the "present flags" bitfield. */
pt = proto_tree_add_bitmask(ppi_antenna_tree, tvb, offset + 4, hf_ppi_antenna_present, ett_ppi_antenna_present, ppi_antenna_present_flags, ENC_LITTLE_ENDIAN);
offset += PPI_GEOBASE_MIN_HEADER_LEN;
length_remaining -= PPI_GEOBASE_MIN_HEADER_LEN;
/* Now all of the fixed length, fixed location stuff is over. Loop over the bits */
for (; present; present = next_present) {
/* clear the least significant bit that is set */
next_present = present & (present - 1);
/* extract the least significant bit that is set */
bit = BITNO_32(present ^ next_present);
switch (bit) {
case PPI_ANTENNA_ANTFLAGS:
if (length_remaining < 4)
break;
proto_tree_add_bitmask(ppi_antenna_tree, tvb, offset, hf_ppi_antenna_flags, ett_ppi_antennaflags, ppi_antenna_ant_flags, ENC_LITTLE_ENDIAN);
offset+=4;
length_remaining-=4;
break;
case PPI_ANTENNA_GAINDB:
if (length_remaining < 1)
break;
gaindb = tvb_get_guint8(tvb, offset);
if (tree) {
proto_tree_add_uint(ppi_antenna_tree, hf_ppi_antenna_gaindb, tvb, offset, 1, gaindb);
proto_item_append_text(antenna_line, " Gain: %d", gaindb);
}
offset+=1;
length_remaining-=1;
break;
case PPI_ANTENNA_HORIZBW:
if (length_remaining < 4)
break;
t_hbw = tvb_get_letohl(tvb, offset);
horizbw = ppi_fixed3_6_to_gdouble(t_hbw);
if (tree) {
proto_tree_add_double(ppi_antenna_tree, hf_ppi_antenna_horizbw, tvb, offset, 4, horizbw);
proto_item_append_text(antenna_line, " HorizBw: %f", horizbw);
}
offset+=4;
length_remaining-=4;
break;
case PPI_ANTENNA_VERTBW:
if (length_remaining < 4)
break;
t_vbw = tvb_get_letohl(tvb, offset);
vertbw = ppi_fixed3_6_to_gdouble(t_vbw);
proto_tree_add_double(ppi_antenna_tree, hf_ppi_antenna_vertbw, tvb, offset, 4, vertbw);
offset+=4;
length_remaining-=4;
break;
case PPI_ANTENNA_PGAIN:
if (length_remaining < 4)
break;
t_pgain = tvb_get_letohl(tvb, offset);
pgain = ppi_fixed3_6_to_gdouble(t_pgain);
proto_tree_add_double(ppi_antenna_tree, hf_ppi_antenna_pgain, tvb, offset, 4, pgain);
offset+=4;
length_remaining-=4;
break;
case PPI_ANTENNA_BEAMID:
if (length_remaining < 2)
break;
beamid= tvb_get_letohs(tvb, offset); /* convert endianess */
proto_tree_add_uint(ppi_antenna_tree, hf_ppi_antenna_beamid, tvb, offset, 2, beamid);
offset+=2;
length_remaining-=2;
break;
case PPI_ANTENNA_SERIALNUM:
if (length_remaining < 32)
break;
proto_tree_add_item(ppi_antenna_tree, hf_ppi_antenna_serialnum, tvb, offset, 32, ENC_ASCII|ENC_NA);
offset+=32;
length_remaining-=32;
break;
case PPI_ANTENNA_MODELSTR:
if (length_remaining < 32)
break;
if (tree) {
/* proto_tree_add_item(ppi_antenna_tree, hf_ppi_antenna_modelname, tvb, offset, 32, ENC_ASCII|ENC_NA); */
curr_str = tvb_format_stringzpad(tvb, offset, 32);
proto_tree_add_string(ppi_antenna_tree, hf_ppi_antenna_modelname, tvb, offset, 32, curr_str);
proto_item_append_text(antenna_line, " (%s)", curr_str);
}
offset+=32;
length_remaining-=32;
break;
case PPI_ANTENNA_DESCSTR:
if (length_remaining < 32)
break;
if (tree) {
/*proto_tree_add_item(ppi_antenna_tree, hf_ppi_antenna_descstr, tvb, offset, 32, ENC_ASCII|ENC_NA);*/
curr_str = tvb_format_stringzpad(tvb, offset, 32);
proto_tree_add_string(ppi_antenna_tree, hf_ppi_antenna_descstr, tvb, offset, 32, curr_str);
proto_item_append_text(antenna_line, " (%s)", curr_str);
}
offset+=32;
length_remaining-=32;
break;
case PPI_ANTENNA_APPID:
if (length_remaining < 4)
break;
t_appspecific_num = tvb_get_letohl(tvb, offset); /* application specific parsers may switch on this later */
proto_tree_add_uint(ppi_antenna_tree, hf_ppi_antenna_appspecific_num, tvb, offset, 4, t_appspecific_num);
offset+=4;
length_remaining-=4;
break;
case PPI_ANTENNA_APPDATA:
if (length_remaining < 60)
break;
proto_tree_add_item(ppi_antenna_tree, hf_ppi_antenna_appspecific_data, tvb, offset, 60, ENC_NA);
offset+=60;
length_remaining-=60;
break;
default:
/*
* This indicates a field whose size we do not
* know, so we cannot proceed.
*/
expert_add_info_format(pinfo, pt, &ei_ppi_antenna_present_bit,
"Error: PPI-ANTENNA: unknown bit (%d) set in present field.", bit);
next_present = 0;
continue;
}
}
return tvb_captured_length(tvb);
}
void
proto_register_ppi_antenna(void) {
static hf_register_info hf[] = {
{ &hf_ppi_antenna_version,
{ "Header revision", "ppi_antenna.version",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Version of ppi_antenna header format", HFILL } },
{ &hf_ppi_antenna_pad,
{ "Header pad", "ppi_antenna.pad",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Padding", HFILL } },
{ &hf_ppi_antenna_length,
{ "Header length", "ppi_antenna.length",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Length of header including version, pad, length and data fields", HFILL } },
/* This setups the "Antenna flags" hex dropydown thing */
{ &hf_ppi_antenna_flags,
{ "Antenna flags", "ppi_antenna.antenna_flags",
FT_UINT32, BASE_HEX, NULL, 0x0, "Bitmask indicating polarity, etc", HFILL } },
{ &hf_ppi_antenna_present,
{ "Present", "ppi_antenna.present",
FT_UINT32, BASE_HEX, NULL, 0x0, "Bitmask indicating which fields are present", HFILL } },
/* This first set is for the base_tag_header.it_present bitfield */
#define PPI_ANTENNA_MASK_FLAGS 0x00000001 /* 0 */
#define PPI_ANTENNA_MASK_GAINDB 0x00000002 /* 1 */
#define PPI_ANTENNA_MASK_HORIZBW 0x00000004 /* 2 */
#define PPI_ANTENNA_MASK_VERTBW 0x00000008 /* 3 */
#define PPI_ANTENNA_MASK_PGAIN 0x00000010 /* 4 */
#define PPI_ANTENNA_MASK_BEAMID 0x00000020 /* 5 */
#define PPI_ANTENNA_MASK_RES7 0x00000080 /* 7 */
#define PPI_ANTENNA_MASK_SERIALNUM 0x04000000 /* 26 */
#define PPI_ANTENNA_MASK_MODELSTR 0x08000000 /* 27 */
#define PPI_ANTENNA_MASK_DESCSTR 0x10000000 /* 28 */
#define PPI_ANTENNA_MASK_APPID 0x20000000 /* 29 */
#define PPI_ANTENNA_MASK_APPDATA 0x40000000 /* 30 */
#define PPI_ANTENNA_MASK_EXT 0x80000000 /* 31 */
/*This second set is for the AntennaFlags bitfield. */
#define PPI_ANTENNAFLAGS_MASK_MIMO 0x00000001 /* 0 */
#define PPI_ANTENNAFLAGS_MASK_HPOL 0x00000002 /* 1 */
#define PPI_ANTENNAFLAGS_MASK_VPOL 0x00000004 /* 2 */
#define PPI_ANTENNAFLAGS_MASK_CPOL_L 0x00000008 /* 3 */
#define PPI_ANTENNAFLAGS_MASK_CPOL_R 0x00000010 /* 4 */
#define PPI_ANTENNAFLAGS_MASK_STEER_ELEC 0x00010000 /* 16 */
#define PPI_ANTENNAFLAGS_MASK_STEER_MECH 0x00020000 /* 17 */
/* Boolean 'present' flags */
{ &hf_ppi_antenna_present_flags,
{ "flags", "ppi_antenna.present.flags",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_FLAGS,
"Specifies if the flags bitfield is present", HFILL } },
{ &hf_ppi_antenna_present_gaindb,
{ "gaindb", "ppi_antenna.present.gaindb",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_GAINDB,
"Specifies if the antenna gain field is present", HFILL } },
{ &hf_ppi_antenna_present_horizbw,
{ "horizbw", "ppi_antenna.present.horizbw",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_HORIZBW,
"Specifies if the horizontal beamwidth field is present", HFILL } },
{ &hf_ppi_antenna_present_vertbw,
{ "vertbw", "ppi_antenna.present.vertbw",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_VERTBW,
"Specifies if the vertical beamwidth field is present", HFILL } },
{ &hf_ppi_antenna_present_pgain,
{ "pgain", "ppi_antenna.present.pgain",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_PGAIN,
"Specifies if the precision gain field is present", HFILL } },
{ &hf_ppi_antenna_present_beamid,
{ "beamid", "ppi_antenna.present.beamid",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_BEAMID,
"Specifies if the BeamID field is present", HFILL } },
{ &hf_ppi_antenna_present_serialnum,
{ "serialnum", "ppi_antenna.present.serialnum",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_SERIALNUM,
"Specifies if the serial num is present", HFILL } },
{ &hf_ppi_antenna_present_modelname,
{ "modelname", "ppi_antenna.present.modelname",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_MODELSTR,
"Specifies if the model name is present", HFILL } },
{ &hf_ppi_antenna_present_descstr,
{ "Description", "ppi_antenna.present.descr",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_DESCSTR,
"Specifies if the description string is present", HFILL } },
{ &hf_ppi_antenna_present_appspecific_num,
{ "appid", "ppi_antenna.present.appid",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_APPID,
"Specifies if the application specific field id is present", HFILL } },
{ &hf_ppi_antenna_present_appspecific_data,
{ "appdata", "ppi_antenna.present.appdata",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_APPDATA,
"Specifies if the application specific data field is present", HFILL } },
{ &hf_ppi_antenna_present_ext,
{ "ext", "ppi_antenna.present.ext",
FT_BOOLEAN, 32, NULL, PPI_ANTENNA_MASK_EXT,
"Specifies if there are any extensions to the header present", HFILL } },
/*Here we switch to the antennflags bits*/
/* Boolean AntennaFlags' flags */
{ &hf_ppi_antennaflags_mimo,
{ "mimo", "ppi_antenna.antennaflags.mimo",
FT_BOOLEAN, 32, NULL, PPI_ANTENNAFLAGS_MASK_MIMO,
"Antenna is part of MIMO system", HFILL } },
{ &hf_ppi_antennaflags_horizpol,
{ "horizontally polarized", "ppi_antenna.antennaflags.horizpol",
FT_BOOLEAN, 32, NULL, PPI_ANTENNAFLAGS_MASK_HPOL,
"Specifies if the antenna is horizontally polarized", HFILL } },
{ &hf_ppi_antennaflags_vertpol,
{ "vertically polarized", "ppi_antenna.antennaflags.vertpol",
FT_BOOLEAN, 32, NULL, PPI_ANTENNAFLAGS_MASK_VPOL,
"Specifies if the antenna is vertically polarized", HFILL } },
{ &hf_ppi_antennaflags_circpol_l,
{ "circularly polarized left", "ppi_antenna.antennaflags.circpol_l",
FT_BOOLEAN, 32, NULL, PPI_ANTENNAFLAGS_MASK_CPOL_L,
"Specifies if the antenna is circularly polarized, left handed", HFILL } },
{ &hf_ppi_antennaflags_circpol_r,
{ "circularly polarized right", "ppi_antenna.antennaflags.circpol_r",
FT_BOOLEAN, 32, NULL, PPI_ANTENNAFLAGS_MASK_CPOL_R,
"Specifies if the antenna is circularly polarized, right handed", HFILL } },
{ &hf_ppi_antennaflags_steer_elec,
{ "electrically steerable", "ppi_antenna.antennaflags.steer_elec",
FT_BOOLEAN, 32, NULL, PPI_ANTENNAFLAGS_MASK_STEER_ELEC,
"Specifies if the antenna is electrically steerable", HFILL } },
{ &hf_ppi_antennaflags_steer_mech,
{ "mechanically steerable", "ppi_antenna.antennaflags.steer_mech",
FT_BOOLEAN, 32, NULL, PPI_ANTENNAFLAGS_MASK_STEER_MECH,
"Specifies if the antenna is mechanically steerable", HFILL } },
/* Now we get to the actual data fields */
{ &hf_ppi_antenna_gaindb,
{ "Gain (dBi)", "ppi_antenna.gaindb",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Gain of antenna (dBi)", HFILL } },
{ &hf_ppi_antenna_horizbw,
{ "HorizBw", "ppi_antenna.horizbw",
FT_DOUBLE, BASE_NONE, NULL, 0x0,
"Horizontal beamwidth", HFILL } },
{ &hf_ppi_antenna_vertbw,
{ "VertBw", "ppi_antenna.vertbw",
FT_DOUBLE, BASE_NONE, NULL, 0x0,
"Vertical beamwidth", HFILL } },
{ &hf_ppi_antenna_pgain,
{ "Precision Gain (dBi)", "ppi_antenna.pgain",
FT_DOUBLE, BASE_NONE, NULL, 0x0,
NULL, HFILL } },
{ &hf_ppi_antenna_beamid,
{ "BeamID", "ppi_antenna.beamid",
FT_UINT16, BASE_HEX, NULL, 0x0,
NULL, HFILL } },
{ &hf_ppi_antenna_serialnum,
{ "SerialNumber", "ppi_antenna.serialnum",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL } } ,
{ &hf_ppi_antenna_modelname,
{ "ModelName", "ppi_antenna.modelname",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL } } ,
{ &hf_ppi_antenna_descstr,
{ "Description", "ppi_antenna.descr",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL } } ,
{ &hf_ppi_antenna_appspecific_num,
{ "Application Specific id", "ppi_antenna.appid",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL } },
{ &hf_ppi_antenna_appspecific_data,
{ "Application specific data", "ppi_antenna.appdata",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL } },
};
static gint *ett[] = {
&ett_ppi_antenna,
&ett_ppi_antenna_present,
&ett_ppi_antennaflags
};
static ei_register_info ei[] = {
{ &ei_ppi_antenna_present_bit, { "ppi_antenna.present.unknown_bit", PI_PROTOCOL, PI_WARN, "Error: PPI-ANTENNA: unknown bit set in present field.", EXPFILL }},
{ &ei_ppi_antenna_version, { "ppi_antenna.version.unsupported", PI_PROTOCOL, PI_WARN, "Invalid version", EXPFILL }},
{ &ei_ppi_antenna_length, { "ppi_antenna.length.invalid", PI_MALFORMED, PI_ERROR, "Invalid length", EXPFILL }},
};
expert_module_t* expert_ppi_antenna;
proto_ppi_antenna = proto_register_protocol("PPI antenna decoder", "PPI antenna Decoder", "ppi_antenna");
proto_register_field_array(proto_ppi_antenna, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_ppi_antenna = expert_register_protocol(proto_ppi_antenna);
expert_register_field_array(expert_ppi_antenna, ei, array_length(ei));
register_dissector("ppi_antenna", dissect_ppi_antenna, proto_ppi_antenna);
}
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/