forked from osmocom/wireshark
![Michael Mann](/assets/img/avatar_default.png)
Similar to the "tcp.port" changes in I99604f95d426ad345f4b494598d94178b886eb67, convert dissectors that use "udp.port". More cleanup done on dissectors that use both TCP and UDP dissector tables, so that less preference callbacks exist. Change-Id: If07be9b9e850c244336a7069599cd554ce312dd3 Reviewed-on: https://code.wireshark.org/review/18120 Petri-Dish: Michael Mann <mmann78@netscape.net> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Michael Mann <mmann78@netscape.net>
227 lines
6.9 KiB
C
227 lines
6.9 KiB
C
/* packet-cisco-marker.c
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* Routines for CISCO's ERSPAN3 Marker Packet
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* See: http://www.cisco.com/c/en/us/products/collateral/switches/nexus-9000-series-switches/white-paper-c11-733921.html#_Toc413144488
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* Copyright 2015, Peter Membrey
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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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* Copied from packet-time.c
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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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#define NEW_PROTO_TREE_API
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#include "config.h"
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#include <epan/packet.h>
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void proto_register_erspan_marker(void);
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void proto_reg_handoff_erspan_marker(void);
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void proto_register_erpsan_marker(void);
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static dissector_handle_t marker_handle;
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static header_field_info *hfi_marker = NULL;
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#define CISCO_ERSPAN_MARKER_HFI_INIT HFI_INIT(proto_marker)
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static header_field_info cisco_erspan_prop_header CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "Proprietary CISCO Header", "cisco_erspan_marker.prop_header",
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FT_BYTES, BASE_NONE, NULL, 0x0,
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NULL, HFILL };
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static header_field_info cisco_erspan_info CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "Header", "cisco_erspan_marker.header",
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FT_BOOLEAN, 8, NULL, 0x0,
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NULL, HFILL };
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static header_field_info cisco_erspan_version CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "Version", "cisco_erspan_marker.version",
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FT_UINT16, BASE_DEC, NULL, 0x0f00,
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NULL, HFILL };
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static header_field_info cisco_erspan_type CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "Type", "cisco_erspan_marker.type",
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FT_UINT16, BASE_DEC, NULL, 0xf000,
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NULL, HFILL };
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static header_field_info cisco_erspan_ssid CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "SSID", "cisco_erspan_marker.ssid",
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FT_UINT16, BASE_DEC, NULL, 0x00ff,
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NULL, HFILL };
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static header_field_info cisco_erspan_granularity CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "Granularity", "cisco_erspan_marker.granularity",
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FT_UINT16, BASE_DEC, NULL, 0xff00,
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NULL, HFILL };
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static header_field_info cisco_erspan_utcoffset CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "UTC Offset", "cisco_erspan_marker.utc_offset",
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FT_UINT16, BASE_DEC, NULL, 0x00ff,
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NULL, HFILL };
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static header_field_info cisco_erspan_timestamp CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "Timestamp", "cisco_erspan_marker.timestamp",
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FT_UINT32, BASE_DEC, NULL, 0xffffffff,
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NULL, HFILL };
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static header_field_info cisco_erspan_utc_sec CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "UTC Seconds", "cisco_erspan_marker.utc_sec",
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FT_UINT32, BASE_DEC, NULL, 0xffffffff,
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NULL, HFILL };
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static header_field_info cisco_erspan_utc_usec CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "UTC Microseconds", "cisco_erspan_marker.utc_usec",
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FT_UINT32, BASE_DEC, NULL, 0xffffffff,
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NULL, HFILL };
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static header_field_info cisco_erspan_sequence_number CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "Sequence Number", "cisco_erspan_marker.sequence_number",
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FT_UINT32, BASE_DEC, NULL, 0xffffffff,
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NULL, HFILL };
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static header_field_info cisco_erspan_reserved CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "Reserved", "cisco_erspan_marker.sequence_number",
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FT_UINT32, BASE_DEC, NULL, 0xffffffff,
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NULL, HFILL };
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static header_field_info cisco_erspan_tail CISCO_ERSPAN_MARKER_HFI_INIT =
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{ "TAIL", "cisco_erspan_marker.tail",
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FT_UINT32, BASE_DEC, NULL, 0xffffffff,
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NULL, HFILL };
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static gint ett_marker = -1;
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static int
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dissect_marker(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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proto_tree *marker_tree;
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proto_item *ti;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "CISCO ERSPAN3 MARKER");
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if (tree) {
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/* Skip the proprietary CISCO header - no docs have been released for this */
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guint32 offset = 20;
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ti = proto_tree_add_item(tree, hfi_marker, tvb, 0, -1, ENC_NA);
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marker_tree = proto_item_add_subtree(ti, ett_marker);
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proto_tree_add_item(marker_tree, &cisco_erspan_prop_header, tvb, 0, 20, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(marker_tree, &cisco_erspan_info, tvb, offset, 2, ENC_LITTLE_ENDIAN);
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offset += 2;
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proto_tree_add_item(marker_tree, &cisco_erspan_version, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(marker_tree, &cisco_erspan_type, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(marker_tree, &cisco_erspan_ssid, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(marker_tree, &cisco_erspan_granularity, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(marker_tree, &cisco_erspan_utcoffset, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset+= 2;
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proto_tree_add_item(marker_tree, &cisco_erspan_timestamp, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset+=4;
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proto_tree_add_item(marker_tree, &cisco_erspan_utc_sec, tvb, offset, 4, ENC_LITTLE_ENDIAN);
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offset+=4;
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proto_tree_add_item(marker_tree, &cisco_erspan_utc_usec, tvb, offset, 4, ENC_LITTLE_ENDIAN);
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offset+=4;
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proto_tree_add_item(marker_tree, &cisco_erspan_sequence_number, tvb, offset, 4, ENC_LITTLE_ENDIAN);
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offset+=4;
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proto_tree_add_item(marker_tree, &cisco_erspan_reserved, tvb, offset, 4, ENC_LITTLE_ENDIAN);
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offset+=4;
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proto_tree_add_item(marker_tree, &cisco_erspan_tail, tvb, offset, 4, ENC_LITTLE_ENDIAN);
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}
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return tvb_captured_length(tvb);
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}
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void
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proto_register_erpsan_marker(void)
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{
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#ifndef HAVE_HFI_SECTION_INIT
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static header_field_info *hfi[] = {
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&cisco_erspan_prop_header,
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&cisco_erspan_info,
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&cisco_erspan_version,
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&cisco_erspan_type,
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&cisco_erspan_ssid,
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&cisco_erspan_granularity,
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&cisco_erspan_utcoffset,
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&cisco_erspan_timestamp,
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&cisco_erspan_utc_sec,
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&cisco_erspan_utc_usec,
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&cisco_erspan_sequence_number,
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&cisco_erspan_reserved,
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&cisco_erspan_tail
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};
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#endif
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static gint *ett[] = {
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&ett_marker,
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};
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int proto_marker;
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proto_marker = proto_register_protocol("CISCO ERSPAN3 Marker Packet", "CISCO3 ERSPAN MARKER", "cisco-erspan3-marker");
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hfi_marker = proto_registrar_get_nth(proto_marker);
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proto_register_fields(proto_marker, hfi, array_length(hfi));
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proto_register_subtree_array(ett, array_length(ett));
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marker_handle = create_dissector_handle(dissect_marker, proto_marker);
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}
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void
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proto_reg_handoff_erspan_marker(void)
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{
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dissector_add_for_decode_as_with_preference("udp.port", marker_handle);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local Variables:
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* c-basic-offset: 2
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=2 tabstop=8 expandtab:
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* :indentSize=2:tabSize=8:noTabs=true:
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*/
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