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wireshark/epan/dissectors/packet-vrt.c

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/* packet-vrt.c
* Routines for VRT (VITA 49) packet disassembly
* Copyright 2012 Ettus Research LLC - Nick Foster <nick@ettus.com>: original dissector
* Copyright 2013 Alexander Chemeris <alexander.chemeris@gmail.com>: dissector improvement
* Copyright 2013 Dario Lombardo (lomato@gmail.com): Official Wireshark port
*
* Original dissector repository: https://github.com/bistromath/vrt-dissector
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/prefs.h>
void proto_register_vrt(void);
void proto_reg_handoff_vrt(void);
#define VITA_49_PORT 4991
static gboolean vrt_use_ettus_uhd_header_format = FALSE;
static int proto_vrt = -1;
/* fields */
static int hf_vrt_header = -1; /* 32-bit header */
static int hf_vrt_type = -1; /* 4-bit pkt type */
static int hf_vrt_cidflag = -1; /* 1-bit class ID flag */
static int hf_vrt_tflag = -1; /* 1-bit trailer flag */
static int hf_vrt_tsmflag = -1; /* 1-bit timestamp mode */
static int hf_vrt_tsi = -1; /* 2-bit timestamp type */
static int hf_vrt_tsf = -1; /* 2-bit fractional timestamp type */
static int hf_vrt_seq = -1; /* 4-bit sequence number */
static int hf_vrt_len = -1; /* 16-bit length */
static int hf_vrt_sid = -1; /* 32-bit stream ID (opt.) */
static int hf_vrt_cid = -1; /* 64-bit class ID (opt.) */
static int hf_vrt_cid_oui = -1; /* 24-bit class ID OUI */
static int hf_vrt_cid_icc = -1; /* 16-bit class ID ICC */
static int hf_vrt_cid_pcc = -1; /* 16-bit class ID PCC */
static int hf_vrt_ts_int = -1; /* 32-bit integer timestamp (opt.) */
static int hf_vrt_ts_frac_picosecond = -1; /* 64-bit fractional timestamp (opt.) */
static int hf_vrt_ts_frac_sample = -1; /* 64-bit fractional timestamp (opt.) */
static int hf_vrt_data = -1; /* data */
static int hf_vrt_trailer = -1; /* 32-bit trailer (opt.) */
static int hf_vrt_trailer_enables = -1; /* trailer indicator enables */
static int hf_vrt_trailer_ind = -1; /* trailer indicators */
static int hf_vrt_trailer_e = -1; /* ass con pac cnt enable */
static int hf_vrt_trailer_acpc = -1; /* associated context packet count */
static int hf_vrt_trailer_en_caltime = -1; /* calibrated time indicator */
static int hf_vrt_trailer_en_valid = -1; /* valid data ind */
static int hf_vrt_trailer_en_reflock = -1; /* reference locked ind */
static int hf_vrt_trailer_en_agc = -1; /* AGC/MGC enabled ind */
static int hf_vrt_trailer_en_sig = -1; /* signal detected ind */
static int hf_vrt_trailer_en_inv = -1; /* spectral inversion ind */
static int hf_vrt_trailer_en_overrng = -1; /* overrange indicator */
static int hf_vrt_trailer_en_sampleloss = -1; /* sample loss indicator */
static int hf_vrt_trailer_en_user0 = -1; /* User indicator 0 */
static int hf_vrt_trailer_en_user1 = -1; /* User indicator 1 */
static int hf_vrt_trailer_en_user2 = -1; /* User indicator 2 */
static int hf_vrt_trailer_en_user3 = -1; /* User indicator 3 */
static int hf_vrt_trailer_ind_caltime = -1; /* calibrated time indicator */
static int hf_vrt_trailer_ind_valid = -1; /* valid data ind */
static int hf_vrt_trailer_ind_reflock = -1; /* reference locked ind */
static int hf_vrt_trailer_ind_agc = -1; /* AGC/MGC enabled ind */
static int hf_vrt_trailer_ind_sig = -1; /* signal detected ind */
static int hf_vrt_trailer_ind_inv = -1; /* spectral inversion ind */
static int hf_vrt_trailer_ind_overrng = -1; /* overrange indicator */
static int hf_vrt_trailer_ind_sampleloss = -1; /* sample loss indicator */
static int hf_vrt_trailer_ind_user0 = -1; /* User indicator 0 */
static int hf_vrt_trailer_ind_user1 = -1; /* User indicator 1 */
static int hf_vrt_trailer_ind_user2 = -1; /* User indicator 2 */
static int hf_vrt_trailer_ind_user3 = -1; /* User indicator 3 */
/* subtree state variables */
static gint ett_vrt = -1;
static gint ett_header = -1;
static gint ett_trailer = -1;
static gint ett_indicators = -1;
static gint ett_ind_enables = -1;
static gint ett_cid = -1;
static const value_string packet_types[] = {
{0x00, "IF data packet without stream ID"},
{0x01, "IF data packet with stream ID"},
{0x02, "Extension data packet without stream ID"},
{0x03, "Extension data packet with stream ID"},
{0x04, "IF context packet"},
{0x05, "Extension context packet"},
{0, NULL}
};
static const value_string tsi_types[] = {
{0x00, "No integer-seconds timestamp field included"},
{0x01, "Coordinated Universal Time (UTC)"},
{0x02, "GPS time"},
{0x03, "Other"},
{0, NULL}
};
static const value_string tsf_types[] = {
{0x00, "No fractional-seconds timestamp field included"},
{0x01, "Sample count timestamp"},
{0x02, "Real time (picoseconds) timestamp"},
{0x03, "Free running count timestamp"},
{0, NULL}
};
static const value_string tsm_types[] = {
{0x00, "Precise timestamp resolution"},
{0x01, "General timestamp resolution"},
{0, NULL}
};
static int * const enable_hfs[] = {
&hf_vrt_trailer_en_user3,
&hf_vrt_trailer_en_user2,
&hf_vrt_trailer_en_user1,
&hf_vrt_trailer_en_user0,
&hf_vrt_trailer_en_sampleloss,
&hf_vrt_trailer_en_overrng,
&hf_vrt_trailer_en_inv,
&hf_vrt_trailer_en_sig,
&hf_vrt_trailer_en_agc,
&hf_vrt_trailer_en_reflock,
&hf_vrt_trailer_en_valid,
&hf_vrt_trailer_en_caltime
};
static int * const ind_hfs[] = {
&hf_vrt_trailer_ind_user3,
&hf_vrt_trailer_ind_user2,
&hf_vrt_trailer_ind_user1,
&hf_vrt_trailer_ind_user0,
&hf_vrt_trailer_ind_sampleloss,
&hf_vrt_trailer_ind_overrng,
&hf_vrt_trailer_ind_inv,
&hf_vrt_trailer_ind_sig,
&hf_vrt_trailer_ind_agc,
&hf_vrt_trailer_ind_reflock,
&hf_vrt_trailer_ind_valid,
&hf_vrt_trailer_ind_caltime
};
static void dissect_header(tvbuff_t *tvb, proto_tree *tree, int type, int offset);
static void dissect_trailer(tvbuff_t *tvb, proto_tree *tree, int offset);
static void dissect_cid(tvbuff_t *tvb, proto_tree *tree, int offset);
static int dissect_vrt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
int offset = 0;
guint8 type;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "VITA 49");
col_clear(pinfo->cinfo,COL_INFO);
/* HACK to support UHD's weird header offset on data packets. */
if (vrt_use_ettus_uhd_header_format && tvb_get_guint8(tvb, 0) == 0)
offset += 4;
/* get packet type */
type = tvb_get_guint8(tvb, offset) >> 4;
col_add_str(pinfo->cinfo, COL_INFO, val_to_str(type, packet_types, "Reserved packet type (0x%02x)"));
if (tree) { /* we're being asked for details */
guint8 sidflag;
guint8 cidflag;
guint8 tflag;
guint8 tsitype;
guint8 tsftype;
guint16 len;
guint16 nsamps;
proto_tree *vrt_tree;
proto_item *ti;
/* get SID, CID, T flags and TSI, TSF types */
sidflag = (((type & 0x01) != 0) || (type == 4)) ? 1 : 0;
cidflag = (tvb_get_guint8(tvb, offset) >> 3) & 0x01;
/* tflag is in data packets but not context packets */
tflag = (tvb_get_guint8(tvb, offset) >> 2) & 0x01;
if (type == 4)
tflag = 0; /* this should be unnecessary but we do it just in case */
/* tsmflag is in context packets but not data packets
tsmflag = (tvb_get_guint8(tvb, offset) >> 0) & 0x01; */
tsitype = (tvb_get_guint8(tvb, offset+1) >> 6) & 0x03;
tsftype = (tvb_get_guint8(tvb, offset+1) >> 4) & 0x03;
len = tvb_get_ntohs(tvb, offset+2);
nsamps = len - 1; /* (Before adjusting word count for optional fields) */
ti = proto_tree_add_item(tree, proto_vrt, tvb, offset, -1, ENC_NA);
vrt_tree = proto_item_add_subtree(ti, ett_vrt);
dissect_header(tvb, vrt_tree, type, offset);
offset += 4;
/* header's done! if SID (last bit of type), put the stream ID here */
if (sidflag) {
proto_tree_add_item(vrt_tree, hf_vrt_sid, tvb, offset, 4, ENC_BIG_ENDIAN);
nsamps -= 1;
offset += 4;
}
/* if there's a class ID (cidflag), put the class ID here */
if (cidflag) {
dissect_cid(tvb, vrt_tree, offset);
nsamps -= 2;
offset += 8;
}
/* if TSI and/or TSF, populate those here */
if (tsitype != 0) {
proto_tree_add_item(vrt_tree, hf_vrt_ts_int, tvb, offset, 4, ENC_BIG_ENDIAN);
nsamps -= 1;
offset += 4;
}
if (tsftype != 0) {
if (tsftype == 1 || tsftype == 3) {
proto_tree_add_item(vrt_tree, hf_vrt_ts_frac_sample, tvb, offset, 8, ENC_BIG_ENDIAN);
} else if (tsftype == 2) {
proto_tree_add_item(vrt_tree, hf_vrt_ts_frac_picosecond, tvb, offset, 8, ENC_BIG_ENDIAN);
}
nsamps -= 2;
offset += 8;
}
if (tflag) {
nsamps -= 1;
}
/* now we've got either a context packet or a data packet
TODO: parse context packet fully instead of just spewing data */
/* we're into the data */
if (nsamps != 0) {
proto_tree_add_item(vrt_tree, hf_vrt_data, tvb, offset, nsamps*4, ENC_NA);
}
offset += nsamps*4;
if (tflag) {
dissect_trailer(tvb, vrt_tree, offset);
}
}
return tvb_captured_length(tvb);
}
static void dissect_header(tvbuff_t *tvb, proto_tree *tree, int type, int offset)
{
proto_item *hdr_item;
proto_tree *hdr_tree;
hdr_item = proto_tree_add_item(tree, hf_vrt_header, tvb, offset, 4, ENC_BIG_ENDIAN);
hdr_tree = proto_item_add_subtree(hdr_item, ett_header);
proto_tree_add_item(hdr_tree, hf_vrt_type, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(hdr_tree, hf_vrt_cidflag, tvb, offset, 1, ENC_BIG_ENDIAN);
if (type == 4) {
proto_tree_add_item(hdr_tree, hf_vrt_tsmflag, tvb, offset, 1, ENC_BIG_ENDIAN);
} else {
proto_tree_add_item(hdr_tree, hf_vrt_tflag, tvb, offset, 1, ENC_BIG_ENDIAN);
}
offset += 1;
proto_tree_add_item(hdr_tree, hf_vrt_tsi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(hdr_tree, hf_vrt_tsf, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(hdr_tree, hf_vrt_seq, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(hdr_tree, hf_vrt_len, tvb, offset, 2, ENC_BIG_ENDIAN);
}
static void dissect_trailer(tvbuff_t *tvb, proto_tree *tree, int offset)
{
proto_item *enable_item, *ind_item, *trailer_item;
proto_tree *enable_tree;
proto_tree *ind_tree;
proto_tree *trailer_tree;
guint16 en_bits;
gint16 i;
trailer_item = proto_tree_add_item(tree, hf_vrt_trailer, tvb, offset, 4, ENC_BIG_ENDIAN);
trailer_tree = proto_item_add_subtree(trailer_item, ett_trailer);
/* grab the indicator enables and the indicators;
only display enables, indicators which are enabled */
enable_item = proto_tree_add_item(trailer_tree, hf_vrt_trailer_enables, tvb, offset, 2, ENC_BIG_ENDIAN);
ind_item = proto_tree_add_item(trailer_tree, hf_vrt_trailer_ind, tvb, offset + 1, 2, ENC_BIG_ENDIAN);
/* grab enable bits */
en_bits = (tvb_get_ntohs(tvb, offset) & 0xFFF0) >> 4;
/* if there's any enables, start trees for enable bits and for indicators
only enables and indicators which are enabled get printed. */
if (en_bits) {
enable_tree = proto_item_add_subtree(enable_item, ett_ind_enables);
ind_tree = proto_item_add_subtree(ind_item, ett_indicators);
for (i = 11; i >= 0; i--) {
if (en_bits & (1<<i)) {
/* XXX: Display needs to be improved ... */
proto_tree_add_item(enable_tree, *enable_hfs[i], tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(ind_tree, *ind_hfs[i], tvb, offset+1, 2, ENC_BIG_ENDIAN);
}
}
}
offset += 3;
proto_tree_add_item(trailer_tree, hf_vrt_trailer_e, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(trailer_tree, hf_vrt_trailer_acpc, tvb, offset, 1, ENC_BIG_ENDIAN);
}
static void dissect_cid(tvbuff_t *tvb, proto_tree *tree, int offset)
{
proto_item *cid_item;
proto_tree *cid_tree;
cid_item = proto_tree_add_item(tree, hf_vrt_cid, tvb, offset, 8, ENC_BIG_ENDIAN);
cid_tree = proto_item_add_subtree(cid_item, ett_cid);
offset += 1;
proto_tree_add_item(cid_tree, hf_vrt_cid_oui, tvb, offset, 3, ENC_BIG_ENDIAN);
offset += 3;
proto_tree_add_item(cid_tree, hf_vrt_cid_icc, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(cid_tree, hf_vrt_cid_pcc, tvb, offset, 2, ENC_BIG_ENDIAN);
}
void
proto_register_vrt(void)
{
module_t *vrt_module;
static hf_register_info hf[] = {
{ &hf_vrt_header,
{ "VRT header", "vrt.hdr",
FT_UINT32, BASE_HEX,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_type,
{ "Packet type", "vrt.type",
FT_UINT8, BASE_DEC,
VALS(packet_types), 0xF0,
NULL, HFILL }
},
{ &hf_vrt_cidflag,
{ "Class ID included", "vrt.cidflag",
FT_BOOLEAN, 8,
NULL, 0x08,
NULL, HFILL }
},
{ &hf_vrt_tflag,
{ "Trailer included", "vrt.tflag",
FT_BOOLEAN, 8,
NULL, 0x04,
NULL, HFILL }
},
{ &hf_vrt_tsmflag,
{ "Timestamp mode", "vrt.tsmflag",
FT_UINT8, BASE_DEC,
VALS(tsm_types), 0x01,
NULL, HFILL }
},
{ &hf_vrt_tsi,
{ "Integer timestamp type", "vrt.tsi",
FT_UINT8, BASE_DEC,
VALS(tsi_types), 0xC0,
NULL, HFILL }
},
{ &hf_vrt_tsf,
{ "Fractional timestamp type", "vrt.tsf",
FT_UINT8, BASE_DEC,
VALS(tsf_types), 0x30,
NULL, HFILL }
},
{ &hf_vrt_seq,
{ "Sequence number", "vrt.seq",
FT_UINT8, BASE_DEC,
NULL, 0x0F,
NULL, HFILL }
},
{ &hf_vrt_len,
{ "Length", "vrt.len",
FT_UINT16, BASE_DEC,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_ts_int,
{ "Integer timestamp", "vrt.ts_int",
FT_UINT32, BASE_DEC,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_ts_frac_sample,
{ "Fractional timestamp (samples)", "vrt.ts_frac_sample",
FT_UINT64, BASE_DEC,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_ts_frac_picosecond,
{ "Fractional timestamp (picoseconds)", "vrt.ts_frac_picosecond",
FT_UINT64, BASE_DEC,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_sid,
{ "Stream ID", "vrt.sid",
FT_UINT32, BASE_HEX,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_cid,
{ "Class ID", "vrt.cid",
FT_UINT64, BASE_HEX,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_data,
{ "Data", "vrt.data",
FT_BYTES, BASE_NONE,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_trailer,
{ "Trailer", "vrt.trailer",
FT_UINT32, BASE_HEX,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_trailer_enables,
{ "Indicator enable bits", "vrt.enables",
FT_UINT16, BASE_HEX,
NULL, 0xFFF0,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind,
{ "Indicator bits", "vrt.indicators",
FT_UINT16, BASE_HEX,
NULL, 0x0FFF,
NULL, HFILL }
},
{ &hf_vrt_trailer_e,
{ "Associated context packet count enabled", "vrt.e",
FT_BOOLEAN, 8,
NULL, 0x80,
NULL, HFILL }
},
{ &hf_vrt_trailer_acpc,
{ "Associated context packet count", "vrt.acpc",
FT_UINT8, BASE_DEC,
NULL, 0x7F,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_caltime,
{ "Calibrated time indicator", "vrt.caltime",
FT_BOOLEAN, 16,
NULL, 0x0800,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_valid,
{ "Valid signal indicator", "vrt.valid",
FT_BOOLEAN, 16,
NULL, 0x0400,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_reflock,
{ "Reference lock indicator", "vrt.reflock",
FT_BOOLEAN, 16,
NULL, 0x0200,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_agc,
{ "AGC/MGC indicator", "vrt.agc",
FT_BOOLEAN, 16,
NULL, 0x0100,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_sig,
{ "Signal detected indicator", "vrt.sig",
FT_BOOLEAN, 16,
NULL, 0x0080,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_inv,
{ "Spectral inversion indicator", "vrt.inv",
FT_BOOLEAN, 16,
NULL, 0x0040,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_overrng,
{ "Overrange indicator", "vrt.overrng",
FT_BOOLEAN, 16,
NULL, 0x0020,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_sampleloss,
{ "Lost sample indicator", "vrt.sampleloss",
FT_BOOLEAN, 16,
NULL, 0x0010,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_user0,
{ "User indicator 0", "vrt.user0",
FT_BOOLEAN, 16,
NULL, 0x00008,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_user1,
{ "User indicator 1", "vrt.user1",
FT_BOOLEAN, 16,
NULL, 0x0004,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_user2,
{ "User indicator 2", "vrt.user2",
FT_BOOLEAN, 16,
NULL, 0x00002,
NULL, HFILL }
},
{ &hf_vrt_trailer_ind_user3,
{ "User indicator 3", "vrt.user3",
FT_BOOLEAN, 16,
NULL, 0x0001,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_caltime,
{ "Calibrated time indicator enable", "vrt.caltime_en",
FT_BOOLEAN, 16,
NULL, 0x8000,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_valid,
{ "Valid signal indicator enable", "vrt.valid_en",
FT_BOOLEAN, 16,
NULL, 0x4000,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_reflock,
{ "Reference lock indicator enable", "vrt.reflock_en",
FT_BOOLEAN, 16,
NULL, 0x2000,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_agc,
{ "AGC/MGC indicator enable", "vrt.agc_en",
FT_BOOLEAN, 16,
NULL, 0x1000,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_sig,
{ "Signal detected indicator enable", "vrt.sig_en",
FT_BOOLEAN, 16,
NULL, 0x0800,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_inv,
{ "Spectral inversion indicator enable", "vrt.inv_en",
FT_BOOLEAN, 16,
NULL, 0x0400,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_overrng,
{ "Overrange indicator enable", "vrt.overrng_en",
FT_BOOLEAN, 16,
NULL, 0x0200,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_sampleloss,
{ "Lost sample indicator enable", "vrt.sampleloss_en",
FT_BOOLEAN, 16,
NULL, 0x0100,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_user0,
{ "User indicator 0 enable", "vrt.user0_en",
FT_BOOLEAN, 16,
NULL, 0x0080,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_user1,
{ "User indicator 1 enable", "vrt.user1_en",
FT_BOOLEAN, 16,
NULL, 0x0040,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_user2,
{ "User indicator 2 enable", "vrt.user2_en",
FT_BOOLEAN, 16,
NULL, 0x0020,
NULL, HFILL }
},
{ &hf_vrt_trailer_en_user3,
{ "User indicator 3 enable", "vrt.user3_en",
FT_BOOLEAN, 16,
NULL, 0x0010,
NULL, HFILL }
},
{ &hf_vrt_cid_oui,
{ "Class ID Organizationally Unique ID", "vrt.oui",
FT_UINT24, BASE_HEX,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_cid_icc,
{ "Class ID Information Class Code", "vrt.icc",
FT_UINT16, BASE_DEC,
NULL, 0x00,
NULL, HFILL }
},
{ &hf_vrt_cid_pcc,
{ "Class ID Packet Class Code", "vrt.pcc",
FT_UINT16, BASE_DEC,
NULL, 0x00,
NULL, HFILL }
}
};
static gint *ett[] = {
&ett_vrt,
&ett_header,
&ett_trailer,
&ett_indicators,
&ett_ind_enables,
&ett_cid
};
proto_vrt = proto_register_protocol ("VITA 49 radio transport protocol", "VITA 49", "vrt");
proto_register_field_array(proto_vrt, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
vrt_module = prefs_register_protocol(proto_vrt, NULL);
prefs_register_bool_preference(vrt_module, "ettus_uhd_header_format",
"Use Ettus UHD header format",
"Activate workaround for weird Ettus UHD header offset on data packets",
&vrt_use_ettus_uhd_header_format);
}
void
proto_reg_handoff_vrt(void)
{
dissector_handle_t vrt_handle;
vrt_handle = create_dissector_handle(dissect_vrt, proto_vrt);
dissector_add_uint_with_preference("udp.port", VITA_49_PORT, vrt_handle);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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