2 * LeCroy VICP (GPIB-over-Ethernet-but-lets-not-do-LXI) dissector
4 * Written by Frank Kingswood <frank.kingswood@artimi.com>
5 * Copyright 2008, Artimi Ltd.
9 * Wireshark - Network traffic analyzer
10 * By Gerald Combs <gerald@wireshark.org>
11 * Copyright 1998 Gerald Combs
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
32 #include <epan/packet.h>
33 #include <epan/emem.h>
34 #include <epan/ptvcursor.h>
36 /* registration object IDs */
37 static int proto_vicp = -1;
38 static int hf_vicp_operation = -1;
39 static int hf_vicp_version = -1;
40 static int hf_vicp_sequence = -1;
41 static int hf_vicp_unused = -1;
42 static int hf_vicp_length = -1;
43 static int hf_vicp_data = -1;
44 static gint ett_vicp = -1;
46 #define VICP_PORT 1861
48 static void dissect_vicp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
51 proto_tree *vicp_tree;
56 if (tvb_reported_length_remaining(tvb, 0) < 8)
58 /* Payload too small for VICP */
62 if (check_col(pinfo->cinfo, COL_PROTOCOL))
63 col_set_str(pinfo->cinfo, COL_PROTOCOL, "VICP");
65 if (check_col(pinfo->cinfo, COL_INFO))
66 col_clear(pinfo->cinfo, COL_INFO);
68 ti = proto_tree_add_item(tree, proto_vicp, tvb, 0, -1, FALSE);
69 vicp_tree = proto_item_add_subtree(ti, ett_vicp);
70 cursor = ptvcursor_new(vicp_tree, tvb, 0);
72 ptvcursor_add(cursor, hf_vicp_operation, 1, FALSE);
73 ptvcursor_add(cursor, hf_vicp_version, 1, FALSE);
74 ptvcursor_add(cursor, hf_vicp_sequence, 1, FALSE);
75 ptvcursor_add(cursor, hf_vicp_unused, 1, FALSE);
77 len=tvb_get_ntohl(tvb, ptvcursor_current_offset(cursor));
78 ptvcursor_add(cursor, hf_vicp_length, 4, FALSE);
81 proto_tree_add_text(vicp_tree, tvb, 0, 0, "No data");
83 ptvcursor_add(cursor, hf_vicp_data, len, FALSE);
85 ptvcursor_free(cursor);
88 void proto_register_vicp(void)
90 static hf_register_info hf[] =
93 { "Operation","vicp.operation",FT_UINT8,BASE_HEX,NULL,0x0,NULL,HFILL }
96 { "Protocol version","vicp.version",FT_UINT8,BASE_DEC,NULL,0x0,NULL,HFILL }
99 { "Sequence number","vicp.sequence",FT_UINT8,BASE_DEC,NULL,0x0,NULL,HFILL }
102 { "Unused","vicp.unused",FT_UINT8,BASE_HEX,NULL,0x0,NULL,HFILL }
105 { "Data length","vicp.length",FT_UINT32,BASE_DEC,NULL,0x0,NULL,HFILL }
108 { "Data","vicp.data",FT_BYTES,BASE_NONE,NULL,0x0,NULL,HFILL }
116 proto_vicp = proto_register_protocol("LeCroy VICP", "VICP", "vicp");
117 proto_register_field_array(proto_vicp, hf, array_length(hf));
118 proto_register_subtree_array(ett, array_length(ett));
121 void proto_reg_handoff_vicp(void)
122 { dissector_handle_t vicp_handle;
124 vicp_handle = create_dissector_handle(dissect_vicp, proto_vicp);
125 dissector_add("tcp.port", VICP_PORT, vicp_handle);