forked from osmocom/wireshark
![Dario Lombardo](/assets/img/avatar_default.png)
This function will free the resources allocated by the caller. Change-Id: Ib486c14e4fd3c321662fb71f7fd06733ce9a64a4 Reviewed-on: https://code.wireshark.org/review/19375 Reviewed-by: Peter Wu <peter@lekensteyn.nl> Petri-Dish: Peter Wu <peter@lekensteyn.nl> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Michael Mann <mmann78@netscape.net>
689 lines
23 KiB
C
689 lines
23 KiB
C
/* packet-vcdu.c
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* Routines for VCDU dissection
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* Copyright 2000, Scott Hovis scott.hovis@ums.msfc.nasa.gov
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* Enhanced 2008, Matt Dunkle Matthew.L.Dunkle@nasa.gov
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.com>
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/expert.h>
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#include <epan/prefs.h>
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#include <epan/to_str.h>
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#include <epan/uat.h>
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void proto_register_vcdu(void);
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void proto_reg_handoff_vcdu(void);
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/* Initialize the protocol and registered fields */
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static int proto_vcdu = -1;
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static int hf_smex_gsc = -1;
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/* static int hf_smex_unused = -1; */
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static int hf_smex_version = -1;
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static int hf_smex_framelen = -1;
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static int hf_smex_rs_error = -1;
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static int hf_smex_rs_enable = -1;
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static int hf_smex_crc_enable = -1;
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static int hf_smex_crc_error = -1;
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static int hf_smex_mcs_enable = -1;
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static int hf_smex_mcs_num_error = -1;
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static int hf_smex_data_inv = -1;
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static int hf_smex_frame_sync = -1;
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static int hf_smex_data_dir = -1;
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static int hf_smex_data_class = -1;
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static int hf_smex_pb5 = -1;
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static int hf_smex_jday = -1;
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static int hf_smex_seconds = -1;
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static int hf_smex_msec = -1;
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/* static int hf_smex_spare = -1; */
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static int hf_vcdu_version = -1;
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static int hf_vcdu_sp_id = -1;
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static int hf_vcdu_vc_id = -1;
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static int hf_vcdu_seq = -1;
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static int hf_vcdu_replay = -1;
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/* Generated from convert_proto_tree_add_text.pl */
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static int hf_vcdu_data = -1;
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static int hf_vcdu_ground_receipt_time = -1;
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static int hf_vcdu_ccsds_all_fill = -1;
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static int hf_vcdu_bitream_all_fill = -1;
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static int hf_vcdu_bitream_all_data = -1;
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static int hf_vcdu_bitream_all_data_anomaly = -1;
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static int hf_vcdu_ccsds_continuation_packet = -1;
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/* although technically not part of the vcdu header, the
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* first header pointer (for ccsds), and the last bit
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* pointer (for bitstream), are more easily processed by
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* simply adding them to the tail end of the vcdu header
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* branch rather than creating a distinct branch for them
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*/
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static int hf_vcdu_fhp = -1;
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static int hf_vcdu_lbp = -1;
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static dissector_handle_t vcdu_handle;
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static dissector_handle_t ccsds_handle;
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/* Initialize the subtree pointers */
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static gint ett_vcdu = -1;
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static gint ett_smex = -1;
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static gint ett_vcduh = -1;
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static expert_field ei_vcdu_fhp_too_close_to_end_of_vcdu = EI_INIT;
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/*
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* Bits in the first 16-bit header word
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*/
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#define SMEX_VERSION 0xc000
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#define SMEX_FRAMELEN 0x3fff
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/* some basic sizing parameters */
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#define IP_HEADER_LENGTH 48
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#define SMEX_HEADER_LENGTH 20
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#define VCDU_HEADER_LENGTH 6
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#define CCSDS_PRIMARY_HEADER_LENGTH 6
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#define CCSDS_SECONDARY_HEADER_LENGTH 10
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#define PB5_JULIAN_DAY_MASK 0x7ffe
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#define PB5_SECONDS_MASK 0x01ffff
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#define PB5_MILLISECONDS_MASK 0xffc0
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#define LBP_ALL_DATA 0x3fff
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#define LBP_ALL_DATA_ANOMALY 0x7ff
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#define LBP_ALL_FILL 0x3ffe
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#define FHP_ALL_FILL 0x7fe
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#define FHP_CONTINUATION 0x7ff
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#define LBP_MASK 0x3fff
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#define FHP_MASK 0x7ff
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/* leap year macro */
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#ifndef Leap
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# define Leap(yr) ( ( 0 == (yr)%4 && 0 != (yr)%100 ) || ( 0 == (yr)%400 ) )
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#endif
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static const value_string smex_data_inversion_type[] = {
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{ 0, "Data True (not inverted)" },
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{ 1, "Data Inverted (not corrected)" },
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{ 2, "Data Inversion State UNDEFINED" },
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{ 3, "Data Inverted (and corrected)" },
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{ 0, NULL }
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};
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static const value_string smex_frame_sync_mode[] = {
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{ 0, "Search" },
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{ 1, "Check" },
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{ 2, "Lock" },
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{ 3, "Flywheel" },
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{ 0, NULL }
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};
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static const value_string smex_data_direction[] = {
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{ 0, "Forward" },
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{ 1, "Reverse" },
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{ 0, NULL }
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};
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static const value_string smex_data_class[] = {
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{ 0, "Data Class UNDEFINED" },
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{ 1, "CCSDS Frame" },
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{ 2, "CCSDS Packet" },
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{ 3, "TDM Frame" },
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{ 4, "Stopped TDM Frame" },
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{ 0, NULL }
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};
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/* default bitstream channel assignments:
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* the audio channels 4-6 are designated as bitstream channels
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* the standard bitstream channels are 12 through 19
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* the video channels 28-30 are designated as bitstream channels
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* the fill channel 63 is designated as bitstream
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*/
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static int bitstream_channels[] =
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{
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* channels 0-9 */
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0, 0, 1, 1, 1, 1, 1, 1, 1, 1, /* channels 10-19 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* channels 20-29 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* channels 30-39 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* channels 40-49 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* channels 50-59 */
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0, 0, 0, 1 /* channels 60-63 */
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};
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typedef struct {
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guint channel;
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} uat_channel_t;
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static uat_channel_t *uat_bitchannels = NULL;
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static uat_t *vcdu_uat = NULL;
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static guint num_channels_uat = 0;
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UAT_DEC_CB_DEF(uat_bitchannels, channel, uat_channel_t)
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static gboolean
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vcdu_uat_data_update_cb(void *p, char **err) {
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uat_channel_t *ud = (uat_channel_t *)p;
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if (ud->channel >= 64) {
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*err = g_strdup("Channel must be between 0-63.");
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return FALSE;
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}
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return TRUE;
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}
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static void
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vcdu_prefs_apply_cb(void)
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{
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guint i;
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if (num_channels_uat > 0)
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{
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memset(bitstream_channels, 0, sizeof(bitstream_channels));
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for (i = 0; i < num_channels_uat; i++)
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{
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bitstream_channels[uat_bitchannels[i].channel] = 1;
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}
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}
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}
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/* convert smex PB5 header time to a human readable string - NOT THREAD SAFE
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*
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* note: this is not true PB5 time either, but a tsi specific version, although it is similar
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*/
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static const char *
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smex_time_to_string (int pb5_days_since_midnight_9_10_oct_1995, int pb5_seconds, int pb5_milliseconds)
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{
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static int utcdiff = 0;
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nstime_t t;
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static int Days[2][13] =
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{
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{ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
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{ 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
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};
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int yr;
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int ix, days, month;
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/* compute the static constant difference in seconds
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* between midnight 9-10 October 1995 (PB5 time) and
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* seconds since 1/1/1970 (UTC time) just this once
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*/
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if (0 == utcdiff)
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{
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for (yr=1970; yr < 1995; ++yr)
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{
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utcdiff += (Leap(yr) ? 366 : 365) * 24 * 60 * 60;
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}
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days = 0;
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ix = (Leap(1995) ? 1 : 0);
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for (month=1; month < 10; ++month)
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{
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days += Days[ix][month];
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}
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days += 9; /* this gets us up to midnight october 9-10 */
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utcdiff += days * 24 * 60 * 60; /* add days in 1995 prior to October 10 */
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}
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t.secs = (pb5_days_since_midnight_9_10_oct_1995 * 86400) + pb5_seconds + utcdiff;
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t.nsecs = pb5_milliseconds*1000000; /* msecs to nsecs */
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return abs_time_to_str(wmem_packet_scope(), &t, ABSOLUTE_TIME_DOY_UTC, TRUE);
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}
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static int
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dissect_vcdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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int offset = 0;
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gboolean ccsds_tree_added = FALSE;
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proto_item *smex_header;
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proto_tree *smex_tree;
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proto_tree *vcdu_tree;
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proto_item *vcdu_item;
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guint16 first_word;
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guint32 long_word;
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int vcid, pb5_days, pb5_seconds, pb5_milliseconds;
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const char *time_string;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "VCDU");
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col_set_str(pinfo->cinfo, COL_INFO, "Virtual Channel Data Unit");
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/* build the smex header tree */
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smex_tree = proto_tree_add_subtree(tree, tvb, offset, SMEX_HEADER_LENGTH, ett_smex, &smex_header, "SMEX Header");
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proto_tree_add_item(smex_tree, hf_smex_gsc, tvb, offset, 8, ENC_BIG_ENDIAN);
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offset += 8;
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/* proto_tree_add_item(smex_tree, hf_smex_unused, tvb, offset, 2, ENC_BIG_ENDIAN); */
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offset += 2;
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first_word = tvb_get_ntohs(tvb, offset);
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proto_tree_add_uint(smex_tree, hf_smex_version, tvb, offset, 2, first_word);
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proto_tree_add_uint(smex_tree, hf_smex_framelen, tvb, offset, 2, first_word);
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offset += 2;
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proto_tree_add_item(smex_tree, hf_smex_rs_enable, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(smex_tree, hf_smex_rs_error, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(smex_tree, hf_smex_crc_enable, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(smex_tree, hf_smex_crc_error, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(smex_tree, hf_smex_mcs_enable, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(smex_tree, hf_smex_mcs_num_error, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(smex_tree, hf_smex_data_inv, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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proto_tree_add_item(smex_tree, hf_smex_frame_sync, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(smex_tree, hf_smex_data_dir, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(smex_tree, hf_smex_data_class, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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/* extract smex ground receipt time tag */
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long_word = tvb_get_ntohl(tvb, offset);
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pb5_days = (long_word >> 17) & PB5_JULIAN_DAY_MASK;
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pb5_seconds = (long_word & PB5_SECONDS_MASK);
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first_word = tvb_get_ntohs(tvb, offset+4);
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pb5_milliseconds = (first_word & PB5_MILLISECONDS_MASK) >> 6;
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proto_tree_add_item(smex_tree, hf_smex_pb5, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(smex_tree, hf_smex_jday, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 1;
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proto_tree_add_item(smex_tree, hf_smex_seconds, tvb, offset, 3, ENC_BIG_ENDIAN);
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offset += 3;
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proto_tree_add_item(smex_tree, hf_smex_msec, tvb, offset, 2, ENC_BIG_ENDIAN);
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/* proto_tree_add_item(smex_tree, hf_smex_spare, tvb, offset, 2, ENC_BIG_ENDIAN); */
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offset += 2;
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/* format ground receipt time into human readable time format for display */
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time_string = smex_time_to_string(pb5_days, pb5_seconds, pb5_milliseconds);
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proto_tree_add_string(smex_tree, hf_vcdu_ground_receipt_time, tvb, offset-6, 6, time_string);
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proto_item_set_end(smex_header, tvb, offset);
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/* build the vcdu header tree */
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vcdu_tree = proto_tree_add_subtree(tree, tvb, offset, VCDU_HEADER_LENGTH, ett_vcdu, &vcdu_item, "VCDU Header");
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/* extract the virtual channel for use later on */
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first_word = tvb_get_ntohs(tvb, offset);
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vcid = first_word & 0x3f;
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proto_tree_add_item(vcdu_tree, hf_vcdu_version, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(vcdu_tree, hf_vcdu_sp_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(vcdu_tree, hf_vcdu_vc_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(vcdu_tree, hf_vcdu_seq, tvb, offset, 3, ENC_BIG_ENDIAN);
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offset += 3;
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proto_tree_add_item(vcdu_tree, hf_vcdu_replay, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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/* extract mpdu/bpdu header word */
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first_word = tvb_get_ntohs(tvb, offset);
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/* do bitstream channel processing */
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if (bitstream_channels[vcid])
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{
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guint16 new_ptr;
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/* extract last bit pointer for bitstream channels */
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new_ptr = first_word & LBP_MASK;
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/* add last bit pointer to display tree */
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proto_tree_add_item(vcdu_tree, hf_vcdu_lbp, tvb, offset, 2, ENC_BIG_ENDIAN);
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switch (new_ptr)
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{
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case LBP_ALL_DATA:
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proto_tree_add_item(vcdu_tree, hf_vcdu_bitream_all_data, tvb, 0, -1, ENC_NA);
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break;
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case LBP_ALL_DATA_ANOMALY:
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proto_tree_add_item(vcdu_tree, hf_vcdu_bitream_all_data_anomaly, tvb, 0, -1, ENC_NA);
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break;
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case LBP_ALL_FILL:
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proto_tree_add_item(vcdu_tree, hf_vcdu_bitream_all_fill, tvb, 0, -1, ENC_NA);
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break;
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default:
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break;
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}
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} /* end of bitstream channel processing */
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/* do ccsds channel processing */
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else
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{
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guint16 new_ptr;
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/* extract first header pointer for ccsds channels */
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new_ptr = first_word & FHP_MASK;
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/* add first header pointer to display tree */
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proto_tree_add_item(vcdu_tree, hf_vcdu_fhp, tvb, offset, 2, ENC_BIG_ENDIAN);
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/* process special cases of first header pointer */
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if (FHP_ALL_FILL == new_ptr)
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{
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proto_tree_add_item(vcdu_tree, hf_vcdu_ccsds_all_fill, tvb, 0, -1, ENC_NA);
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}
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else if (FHP_CONTINUATION == new_ptr)
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{
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proto_tree_add_item(vcdu_tree, hf_vcdu_ccsds_continuation_packet, tvb, 0, -1, ENC_NA);
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}
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/* process as many ccsds packet headers as we can using the ccsds packet dissector */
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else
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{
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int packet_boundary;
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int new_offset;
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/* compute offset and packet boundary lengths for ccsds dissector loop */
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new_offset = offset + 2 + new_ptr;
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packet_boundary =
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tvb_reported_length(tvb) - VCDU_HEADER_LENGTH
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- CCSDS_PRIMARY_HEADER_LENGTH - CCSDS_SECONDARY_HEADER_LENGTH;
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while ( ((new_offset-offset+2) < packet_boundary) && ((new_offset-offset+2) >= 4) )
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{
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int ccsds_len;
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tvbuff_t *new_tvb;
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ccsds_tree_added = TRUE;
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ccsds_len = tvb_get_ntohs(tvb, new_offset+4);
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new_tvb = tvb_new_subset_remaining(tvb, new_offset);
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call_dissector(ccsds_handle, new_tvb, pinfo, vcdu_tree);
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|
|
new_offset = new_offset + ccsds_len + 7;
|
|
}
|
|
|
|
if (! ccsds_tree_added)
|
|
{
|
|
proto_tree_add_expert(vcdu_tree, pinfo, &ei_vcdu_fhp_too_close_to_end_of_vcdu, tvb, 0, -1);
|
|
}
|
|
}
|
|
|
|
} /* end of ccsds channel processing */
|
|
|
|
/* don't include the mpdu/bpdu header in the vcdu header highlighting.
|
|
* by skipping the offset bump the vcdu header highlighting will show
|
|
* just 6 bytes as it really should, and the fhp/lbp will be included
|
|
* in the data zone, which is technically more correct.
|
|
*/
|
|
/* offset += 2; */
|
|
proto_item_set_end(vcdu_item, tvb, offset);
|
|
|
|
if (! ccsds_tree_added)
|
|
{
|
|
/* add "Data" section if ccsds parsing did not do so already */
|
|
proto_tree_add_item(vcdu_tree, hf_vcdu_data, tvb, offset, -1, ENC_NA);
|
|
}
|
|
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
|
|
void
|
|
proto_register_vcdu(void)
|
|
{
|
|
module_t *vcdu_module;
|
|
|
|
/* Setup list of header fields See Section 1.6.1 for details*/
|
|
static hf_register_info hf[] = {
|
|
{ &hf_smex_gsc,
|
|
{ "Ground Sequence Counter", "vcdu.smex.gsc",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
"SMEX Ground Sequence Counter", HFILL }
|
|
},
|
|
#if 0
|
|
{ &hf_smex_unused,
|
|
{ "Unused", "vcdu.smex.unused",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"SMEX Unused", HFILL }
|
|
},
|
|
#endif
|
|
{ &hf_smex_version,
|
|
{ "Version", "vcdu.smex.version",
|
|
FT_UINT16, BASE_DEC, NULL, SMEX_VERSION,
|
|
"SMEX Version", HFILL }
|
|
},
|
|
{ &hf_smex_framelen,
|
|
{ "Frame Length", "vcdu.smex.frame_len",
|
|
FT_UINT16, BASE_DEC, NULL, SMEX_FRAMELEN,
|
|
"SMEX Frame Length", HFILL }
|
|
},
|
|
{ &hf_smex_rs_enable,
|
|
{ "RS Enable", "vcdu.smex.rs_enable",
|
|
FT_BOOLEAN, 8, NULL, 0x80,
|
|
"SMEX RS Enable", HFILL }
|
|
},
|
|
{ &hf_smex_rs_error,
|
|
{ "RS Error", "vcdu.smex.rs_error",
|
|
FT_BOOLEAN, 8, NULL, 0x40,
|
|
"SMEX RS Error", HFILL }
|
|
},
|
|
{ &hf_smex_crc_enable,
|
|
{ "CRC Enable", "vcdu.smex.crc_enable",
|
|
FT_BOOLEAN, 8, NULL, 0x20,
|
|
"SMEX CRC Enable", HFILL }
|
|
},
|
|
{ &hf_smex_crc_error,
|
|
{ "CRC Error", "vcdu.smex.crc_error",
|
|
FT_BOOLEAN, 8, NULL, 0x10,
|
|
"SMEX CRC Error", HFILL }
|
|
},
|
|
{ &hf_smex_mcs_enable,
|
|
{ "MCS Enable", "vcdu.smex.mcs_enable",
|
|
FT_BOOLEAN, 8, NULL, 0x08,
|
|
"SMEX MCS Enable", HFILL }
|
|
},
|
|
{ &hf_smex_mcs_num_error,
|
|
{ "MCS Number Error", "vcdu.smex.mcs_numerr",
|
|
FT_BOOLEAN, 8, NULL, 0x04,
|
|
"SMEX MCS Number Error", HFILL }
|
|
},
|
|
{ &hf_smex_data_inv,
|
|
{ "Data Inversion", "vcdu.smex.data_inv",
|
|
FT_UINT16, BASE_DEC, VALS(smex_data_inversion_type), 0x03,
|
|
"SMEX Data Inversion", HFILL }
|
|
},
|
|
{ &hf_smex_frame_sync,
|
|
{ "Frame Sync", "vcdu.smex.frame_sync",
|
|
FT_UINT16, BASE_DEC, VALS(smex_frame_sync_mode), 0xc0,
|
|
"SMEX Frame Sync Flag", HFILL }
|
|
},
|
|
{ &hf_smex_data_dir,
|
|
{ "Data Direction", "vcdu.smex.data_dir",
|
|
FT_UINT16, BASE_DEC, VALS(smex_data_direction), 0x20,
|
|
"SMEX Data Direction flag", HFILL }
|
|
},
|
|
{ &hf_smex_data_class,
|
|
{ "Data Class", "vcdu.smex.data_class",
|
|
FT_UINT16, BASE_DEC, VALS(smex_data_class), 0x1f,
|
|
"SMEX Data Class", HFILL }
|
|
},
|
|
{ &hf_smex_pb5,
|
|
{ "PB5 Flag", "vcdu.smex.pb5",
|
|
FT_UINT16, BASE_DEC, NULL, 0x8000,
|
|
"SMEX PB5 Flag", HFILL }
|
|
},
|
|
{ &hf_smex_jday,
|
|
{ "Julian Day", "vcdu.smex.jday",
|
|
FT_UINT16, BASE_DEC, NULL, PB5_JULIAN_DAY_MASK,
|
|
"SMEX Julian Day", HFILL }
|
|
},
|
|
{ &hf_smex_seconds,
|
|
{ "Seconds", "vcdu.smex.seconds",
|
|
FT_UINT24, BASE_DEC, NULL, PB5_SECONDS_MASK,
|
|
"SMEX Seconds", HFILL }
|
|
},
|
|
{ &hf_smex_msec,
|
|
{ "Milliseconds", "vcdu.smex.msec",
|
|
FT_UINT16, BASE_DEC, NULL, PB5_MILLISECONDS_MASK,
|
|
"SMEX Milliseconds", HFILL }
|
|
},
|
|
#if 0
|
|
{ &hf_smex_spare,
|
|
{ "Spare", "vcdu.smex.spare",
|
|
FT_UINT16, BASE_DEC, NULL, 0x03f,
|
|
"SMEX Spare", HFILL }
|
|
},
|
|
#endif
|
|
|
|
{ &hf_vcdu_version,
|
|
{ "Version", "vcdu.version",
|
|
FT_UINT16, BASE_DEC, NULL, 0xc0,
|
|
"VCDU Version", HFILL }
|
|
},
|
|
{ &hf_vcdu_sp_id,
|
|
{ "Space Craft ID", "vcdu.spid",
|
|
FT_UINT16, BASE_DEC, NULL, 0x3fc0,
|
|
"VCDU Space Craft ID", HFILL }
|
|
},
|
|
{ &hf_vcdu_vc_id,
|
|
{ "Virtual Channel ID", "vcdu.vcid",
|
|
FT_UINT16, BASE_DEC, NULL, 0x3f,
|
|
"VCDU Virtual Channel ID", HFILL }
|
|
},
|
|
{ &hf_vcdu_seq,
|
|
{ "Sequence Count", "vcdu.seq",
|
|
FT_UINT16, BASE_DEC, NULL, 0xffffff,
|
|
"VCDU Sequence Count", HFILL }
|
|
},
|
|
{ &hf_vcdu_replay,
|
|
{ "Replay Flag", "vcdu.replay",
|
|
FT_BOOLEAN, 8, NULL, 0x80,
|
|
"VCDU Replay Flag", HFILL }
|
|
},
|
|
|
|
/* Generated from convert_proto_tree_add_text.pl */
|
|
{ &hf_vcdu_ground_receipt_time, { "Ground Receipt Time", "vcdu.ground_receipt_time", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_vcdu_bitream_all_data, { "Bitream ALL Data", "vcdu.bitream.all_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_vcdu_bitream_all_data_anomaly, { "Bitream ALL Data (Anomaly)", "vcdu.bitream.all_data_anomaly", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_vcdu_bitream_all_fill, { "Bitream ALL Fill", "vcdu.bitream.all_fill", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_vcdu_ccsds_all_fill, { "Ccsds ALL Fill", "vcdu.ccsds.all_fill", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_vcdu_ccsds_continuation_packet, { "Ccsds Continuation Packet", "vcdu.ccsds_continuation_packet", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_vcdu_data, { "Data", "vcdu.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
|
|
/* not really part of the vcdu header, but it's easier this way */
|
|
{ &hf_vcdu_fhp,
|
|
{ "First Header Pointer", "vcdu.fhp",
|
|
FT_UINT16, BASE_DEC, NULL, FHP_MASK,
|
|
"VCDU/MPDU First Header Pointer", HFILL }
|
|
},
|
|
{ &hf_vcdu_lbp,
|
|
{ "Last Bit Pointer", "vcdu.lbp",
|
|
FT_UINT16, BASE_DEC, NULL, LBP_MASK,
|
|
"VCDU/BPDU Last Bit Pointer", HFILL }
|
|
}
|
|
};
|
|
|
|
static uat_field_t vcdu_uat_flds[] = {
|
|
UAT_FLD_DEC(uat_bitchannels, channel, "Bitstream Channel", "Bitstream Channel"),
|
|
UAT_END_FIELDS
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_vcdu,
|
|
&ett_smex,
|
|
&ett_vcduh,
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_vcdu_fhp_too_close_to_end_of_vcdu, { "vcdu.fhp_too_close_to_end_of_vcdu", PI_PROTOCOL, PI_WARN, "FHP too close to end of VCDU. Incomplete Hdr Info Available - Unable to format CCSDS Hdr(s).", EXPFILL }},
|
|
};
|
|
|
|
expert_module_t* expert_vcdu;
|
|
|
|
/* Register the protocol name and description */
|
|
proto_vcdu = proto_register_protocol("VCDU", "VCDU", "vcdu");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_vcdu, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_vcdu = expert_register_protocol(proto_vcdu);
|
|
expert_register_field_array(expert_vcdu, ei, array_length(ei));
|
|
|
|
/* XX: Does this dissector need to be publicly registered ?? */
|
|
vcdu_handle = register_dissector("vcdu", dissect_vcdu, proto_vcdu);
|
|
|
|
vcdu_module = prefs_register_protocol(proto_vcdu, vcdu_prefs_apply_cb);
|
|
|
|
vcdu_uat = uat_new("Bitstream Channel Table",
|
|
sizeof(uat_channel_t),
|
|
"vcdu_bitstream_channels",
|
|
TRUE,
|
|
&uat_bitchannels,
|
|
&num_channels_uat,
|
|
UAT_AFFECTS_DISSECTION, /* affects dissection of packets, but not set of named fields */
|
|
NULL,
|
|
NULL,
|
|
vcdu_uat_data_update_cb,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
vcdu_uat_flds);
|
|
|
|
prefs_register_uat_preference(vcdu_module,
|
|
"bitstream_channels",
|
|
"Bitstream Channel Table",
|
|
"Bitstream Channel Table",
|
|
vcdu_uat);
|
|
|
|
}
|
|
|
|
|
|
void
|
|
proto_reg_handoff_vcdu(void)
|
|
{
|
|
dissector_add_for_decode_as_with_preference("udp.port", vcdu_handle);
|
|
ccsds_handle = find_dissector_add_dependency("ccsds", proto_vcdu);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://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:
|
|
*/
|