From Evan Huus:
NASDAQ MOLD UDP 64 Dissectors. https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7038 svn path=/trunk/; revision=42217
This commit is contained in:
Anders Broman
parent
180f6edfa8
commit
4db4a25a42
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@ -819,6 +819,8 @@ set(DISSECTOR_SRC
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dissectors/packet-mip6.c
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dissectors/packet-mmse.c
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dissectors/packet-mndp.c
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dissectors/packet-moldudp.c
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dissectors/packet-moldudp64.c
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dissectors/packet-mongo.c
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dissectors/packet-mount.c
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dissectors/packet-mp2t.c
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@ -738,6 +738,8 @@ DISSECTOR_SRC = \
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packet-mip6.c \
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packet-mmse.c \
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packet-mndp.c \
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packet-moldudp.c \
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packet-moldudp64.c \
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packet-mongo.c \
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packet-mount.c \
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packet-mp2t.c \
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@ -0,0 +1,288 @@
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/* packet-moldudp.c
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* Routines for MoldUDP dissection
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* Copyright 2012, Evan Huus <eapache@gmail.com>
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*
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* http://www.nasdaqtrader.com/content/technicalsupport/specifications/dataproducts/moldudp.pdf
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*
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* $Id$
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/prefs.h>
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#include <epan/expert.h>
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void proto_reg_handoff_moldudp(void);
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/* Initialize the protocol and registered fields */
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static int proto_moldudp = -1;
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static int hf_moldudp_session = -1;
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static int hf_moldudp_sequence = -1;
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static int hf_moldudp_count = -1;
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static int hf_moldudp_msgblk = -1;
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static int hf_moldudp_msgseq = -1;
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static int hf_moldudp_msglen = -1;
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static int hf_moldudp_msgdata = -1;
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#define MOLDUDP_SESSION_LEN 10
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#define MOLDUDP_SEQUENCE_LEN 4
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#define MOLDUDP_COUNT_LEN 2
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#define MOLDUDP_MSGLEN_LEN 2
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#define MOLDUDP_HEARTBEAT 0x0000
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/* Global port pref */
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static guint pf_moldudp_port = 0;
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/* Initialize the subtree pointers */
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static gint ett_moldudp = -1;
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static gint ett_moldudp_msgblk = -1;
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/* Code to dissect a message block */
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guint
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dissect_moldudp_msgblk(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
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guint offset, guint32 sequence)
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{
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proto_item *ti;
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proto_tree *blk_tree;
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guint16 msglen, real_msglen, whole_len;
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guint remaining;
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if (tvb_reported_length(tvb) - offset < MOLDUDP_MSGLEN_LEN)
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return 0;
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msglen = tvb_get_letohs(tvb, offset);
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remaining = tvb_reported_length(tvb) - offset - MOLDUDP_MSGLEN_LEN;
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if (msglen == 0)
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col_set_str(pinfo->cinfo, COL_INFO, "MoldUDP Messages (End Of Session)");
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if (tvb_reported_length(tvb) < (offset + MOLDUDP_MSGLEN_LEN))
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real_msglen = 0;
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else if (msglen <= remaining)
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real_msglen = msglen;
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else
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real_msglen = remaining;
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/* msglen and real_msglen only count the data section, and don't
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* include the two bytes for the length field itself. */
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whole_len = real_msglen + MOLDUDP_MSGLEN_LEN;
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ti = proto_tree_add_item(tree, hf_moldudp_msgblk,
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tvb, offset, whole_len, ENC_NA);
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blk_tree = proto_item_add_subtree(ti, ett_moldudp_msgblk);
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ti = proto_tree_add_uint(blk_tree, hf_moldudp_msgseq,
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tvb, offset, 0, sequence);
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PROTO_ITEM_SET_GENERATED(ti);
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ti = proto_tree_add_item(blk_tree, hf_moldudp_msglen,
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tvb, offset, MOLDUDP_MSGLEN_LEN, ENC_LITTLE_ENDIAN);
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if (msglen != real_msglen)
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expert_add_info_format(pinfo, ti, PI_MALFORMED, PI_ERROR,
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"Invalid Message Length (claimed %u, found %u)",
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msglen, real_msglen);
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offset += MOLDUDP_MSGLEN_LEN;
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proto_tree_add_item(blk_tree, hf_moldudp_msgdata,
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tvb, offset, real_msglen, ENC_NA);
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return whole_len;
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}
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/* Code to actually dissect the packets */
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static int
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dissect_moldudp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_item *ti;
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proto_tree *moldudp_tree;
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guint offset = 0;
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guint16 count, real_count = 0;
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guint32 sequence;
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/* Check that there's enough data */
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if (tvb_reported_length(tvb) < (MOLDUDP_SESSION_LEN +
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MOLDUDP_SEQUENCE_LEN +
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MOLDUDP_COUNT_LEN))
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return 0;
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/* Make entries in Protocol column and Info column on summary display */
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "MoldUDP");
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/* Clear the info column so it's sane if we crash. We fill it in later when
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* we've dissected more of the packet. */
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col_clear(pinfo->cinfo, COL_INFO);
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count = tvb_get_letohs(tvb, MOLDUDP_SESSION_LEN + MOLDUDP_SEQUENCE_LEN);
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if (count == MOLDUDP_HEARTBEAT)
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col_set_str(pinfo->cinfo, COL_INFO, "MoldUDP Heartbeat");
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else
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col_set_str(pinfo->cinfo, COL_INFO, "MoldUDP Messages");
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if (tree)
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{
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/* create display subtree for the protocol */
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ti = proto_tree_add_item(tree, proto_moldudp,
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tvb, offset, -1, ENC_NA);
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moldudp_tree = proto_item_add_subtree(ti, ett_moldudp);
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proto_tree_add_item(moldudp_tree, hf_moldudp_session,
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tvb, offset, MOLDUDP_SESSION_LEN, ENC_ASCII|ENC_NA);
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offset += MOLDUDP_SESSION_LEN;
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sequence = tvb_get_letohl(tvb, offset);
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proto_tree_add_item(moldudp_tree, hf_moldudp_sequence,
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tvb, offset, MOLDUDP_SEQUENCE_LEN, ENC_LITTLE_ENDIAN);
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offset += MOLDUDP_SEQUENCE_LEN;
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ti = proto_tree_add_item(moldudp_tree, hf_moldudp_count,
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tvb, offset, MOLDUDP_COUNT_LEN, ENC_LITTLE_ENDIAN);
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offset += MOLDUDP_COUNT_LEN;
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while (tvb_reported_length(tvb) >= offset + MOLDUDP_MSGLEN_LEN)
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{
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offset += dissect_moldudp_msgblk(tvb, pinfo, moldudp_tree,
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offset, sequence++);
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real_count++;
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}
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if (real_count != count)
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{
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expert_add_info_format(pinfo, ti, PI_MALFORMED, PI_ERROR,
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"Invalid Message Count (claimed %u, found %u)",
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count, real_count);
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}
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}
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/* Return the amount of data this dissector was able to dissect */
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return tvb_length(tvb);
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}
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/* Register the protocol with Wireshark */
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void
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proto_register_moldudp(void)
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{
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module_t *moldudp_module;
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/* Setup list of header fields */
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static hf_register_info hf[] = {
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{ &hf_moldudp_session,
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{ "Session", "moldudp.session", FT_STRING, BASE_NONE, NULL, 0,
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"The session to which this packet belongs.", HFILL }},
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{ &hf_moldudp_sequence,
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{ "Sequence", "moldudp.sequence", FT_UINT32, BASE_DEC, NULL, 0,
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"The sequence number of the first message in this packet.", HFILL }},
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{ &hf_moldudp_count,
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{ "Count", "moldudp.count", FT_UINT16, BASE_DEC, NULL, 0,
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"The number of messages contained in this packet.", HFILL }},
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{ &hf_moldudp_msgblk,
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{ "Message Block", "moldudp.msgblock", FT_NONE, BASE_NONE, NULL, 0,
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"A message.", HFILL }},
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{ &hf_moldudp_msglen,
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{ "Length", "moldudp.msglen", FT_UINT16, BASE_DEC, NULL, 0,
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"The length of this message.", HFILL }},
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{ &hf_moldudp_msgseq,
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{ "Sequence", "moldudp.msgseq", FT_UINT32, BASE_DEC, NULL, 0,
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"The sequence number of this message.", HFILL }},
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{ &hf_moldudp_msgdata,
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{ "Payload", "moldudp.msgdata", FT_BYTES, BASE_NONE, NULL, 0,
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"The payload data of this message.", HFILL }}
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};
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/* Setup protocol subtree array */
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static gint *ett[] = {
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&ett_moldudp,
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&ett_moldudp_msgblk
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};
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/* Register the protocol name and description */
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proto_moldudp = proto_register_protocol("MoldUDP",
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"MoldUDP", "moldudp");
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/* Required function calls to register the header fields and subtrees used */
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proto_register_field_array(proto_moldudp, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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/* Register preferences module */
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moldudp_module = prefs_register_protocol(proto_moldudp,
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proto_reg_handoff_moldudp);
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/* Register a sample port preference */
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prefs_register_uint_preference(moldudp_module, "udp.port", "MoldUDP UDP Port",
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"MoldUDP UDP port to capture on.",
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10, &pf_moldudp_port);
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}
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void
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proto_reg_handoff_moldudp(void)
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{
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static gboolean initialized = FALSE;
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static dissector_handle_t moldudp_handle;
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static int currentPort;
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if (!initialized) {
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moldudp_handle = new_create_dissector_handle(dissect_moldudp,
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proto_moldudp);
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initialized = TRUE;
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} else {
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dissector_delete_uint("udp.port", currentPort, moldudp_handle);
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}
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currentPort = pf_moldudp_port;
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dissector_add_uint("udp.port", currentPort, moldudp_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: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=4 expandtab:
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* :indentSize=4:tabSize=4:noTabs=true:
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*/
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@ -0,0 +1,296 @@
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/* packet-moldudp64.c
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* Routines for MoldUDP64 dissection
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* Copyright 2012, Evan Huus <eapache@gmail.com>
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*
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* http://www.nasdaqtrader.com/content/technicalsupport/specifications/dataproducts/moldudp64.pdf
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*
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* $Id$
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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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* This program is free software; you can redistribute it and/or modify
|
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation; either version 2 of the License, or
|
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* (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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/prefs.h>
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#include <epan/expert.h>
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void proto_reg_handoff_moldudp64(void);
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/* Initialize the protocol and registered fields */
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static int proto_moldudp64 = -1;
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static int hf_moldudp64_session = -1;
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static int hf_moldudp64_sequence = -1;
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static int hf_moldudp64_count = -1;
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static int hf_moldudp64_msgblk = -1;
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static int hf_moldudp64_msglen = -1;
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static int hf_moldudp64_msgseq = -1;
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static int hf_moldudp64_msgdata = -1;
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#define MOLDUDP64_SESSION_LEN 10
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#define MOLDUDP64_SEQUENCE_LEN 8
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#define MOLDUDP64_COUNT_LEN 2
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#define MOLDUDP64_MSGLEN_LEN 2
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#define MOLDUDP64_HEARTBEAT 0x0000
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#define MOLDUDP64_ENDOFSESS 0xFFFF
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/* Global port pref */
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static guint pf_moldudp64_port = 0;
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/* Initialize the subtree pointers */
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static gint ett_moldudp64 = -1;
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static gint ett_moldudp64_msgblk = -1;
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/* Code to dissect a message block */
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guint
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dissect_moldudp64_msgblk(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
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guint offset, guint64 sequence)
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{
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proto_item *ti;
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proto_tree *blk_tree;
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guint16 msglen, real_msglen, whole_len;
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guint remaining;
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if (tvb_length_remaining(tvb, offset) < MOLDUDP64_MSGLEN_LEN)
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return 0;
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msglen = tvb_get_ntohs(tvb, offset);
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remaining = tvb_reported_length(tvb) - offset - MOLDUDP64_MSGLEN_LEN;
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if (remaining < (offset + MOLDUDP64_MSGLEN_LEN))
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real_msglen = 0;
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else if (msglen <= remaining)
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real_msglen = msglen;
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else
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real_msglen = remaining;
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/* msglen and real_msglen only count the data section, and don't
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* include the two bytes for the length field itself. */
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whole_len = real_msglen + MOLDUDP64_MSGLEN_LEN;
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ti = proto_tree_add_item(tree, hf_moldudp64_msgblk,
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tvb, offset, whole_len, ENC_NA);
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blk_tree = proto_item_add_subtree(ti, ett_moldudp64_msgblk);
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ti = proto_tree_add_uint64(blk_tree, hf_moldudp64_msgseq,
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tvb, offset, 0, sequence);
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PROTO_ITEM_SET_GENERATED(ti);
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ti = proto_tree_add_item(blk_tree, hf_moldudp64_msglen,
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tvb, offset, MOLDUDP64_MSGLEN_LEN, ENC_BIG_ENDIAN);
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if (msglen != real_msglen)
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expert_add_info_format(pinfo, ti, PI_MALFORMED, PI_ERROR,
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"Invalid Message Length (claimed %u, found %u)",
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msglen, real_msglen);
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offset += MOLDUDP64_MSGLEN_LEN;
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proto_tree_add_item(blk_tree, hf_moldudp64_msgdata,
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tvb, offset, real_msglen, ENC_NA);
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return whole_len;
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}
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/* Code to actually dissect the packets */
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static int
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dissect_moldudp64(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_item *ti;
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proto_tree *moldudp64_tree;
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guint offset = 0;
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guint16 count, real_count = 0;
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guint64 sequence;
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/* Check that there's enough data */
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if (tvb_reported_length(tvb) < (MOLDUDP64_SESSION_LEN +
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MOLDUDP64_SEQUENCE_LEN +
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MOLDUDP64_COUNT_LEN))
|
||||
return 0;
|
||||
|
||||
/* Make entries in Protocol column and Info column on summary display */
|
||||
col_set_str(pinfo->cinfo, COL_PROTOCOL, "MoldUDP64");
|
||||
|
||||
/* Clear the info column so it's sane if we crash. We fill it in later when
|
||||
* we've dissected more of the packet. */
|
||||
col_clear(pinfo->cinfo, COL_INFO);
|
||||
|
||||
sequence = tvb_get_ntoh64(tvb, MOLDUDP64_SESSION_LEN);
|
||||
count = tvb_get_ntohs(tvb, MOLDUDP64_SESSION_LEN + MOLDUDP64_SEQUENCE_LEN);
|
||||
|
||||
if (count == MOLDUDP64_HEARTBEAT)
|
||||
col_set_str(pinfo->cinfo, COL_INFO, "MoldUDP64 Heartbeat");
|
||||
else if (count == MOLDUDP64_ENDOFSESS)
|
||||
col_set_str(pinfo->cinfo, COL_INFO, "MoldUDP64 End Of Session");
|
||||
else
|
||||
col_set_str(pinfo->cinfo, COL_INFO, "MoldUDP64 Messages");
|
||||
|
||||
if (tree)
|
||||
{
|
||||
/* create display subtree for the protocol */
|
||||
ti = proto_tree_add_item(tree, proto_moldudp64,
|
||||
tvb, offset, -1, ENC_NA);
|
||||
|
||||
moldudp64_tree = proto_item_add_subtree(ti, ett_moldudp64);
|
||||
|
||||
proto_tree_add_item(moldudp64_tree, hf_moldudp64_session,
|
||||
tvb, offset, MOLDUDP64_SESSION_LEN, ENC_ASCII|ENC_NA);
|
||||
offset += MOLDUDP64_SESSION_LEN;
|
||||
|
||||
proto_tree_add_item(moldudp64_tree, hf_moldudp64_sequence,
|
||||
tvb, offset, MOLDUDP64_SEQUENCE_LEN, ENC_BIG_ENDIAN);
|
||||
offset += MOLDUDP64_SEQUENCE_LEN;
|
||||
|
||||
ti = proto_tree_add_item(moldudp64_tree, hf_moldudp64_count,
|
||||
tvb, offset, MOLDUDP64_COUNT_LEN, ENC_BIG_ENDIAN);
|
||||
offset += MOLDUDP64_COUNT_LEN;
|
||||
|
||||
while (tvb_reported_length(tvb) >= offset + MOLDUDP64_MSGLEN_LEN)
|
||||
{
|
||||
offset += dissect_moldudp64_msgblk(tvb, pinfo, moldudp64_tree,
|
||||
offset, sequence++);
|
||||
real_count++;
|
||||
}
|
||||
|
||||
if (count == MOLDUDP64_ENDOFSESS)
|
||||
{
|
||||
if (real_count != 0)
|
||||
{
|
||||
expert_add_info_format(pinfo, ti, PI_MALFORMED, PI_ERROR,
|
||||
"End Of Session packet with extra data.");
|
||||
}
|
||||
}
|
||||
else if (real_count != count)
|
||||
{
|
||||
expert_add_info_format(pinfo, ti, PI_MALFORMED, PI_ERROR,
|
||||
"Invalid Message Count (claimed %u, found %u)",
|
||||
count, real_count);
|
||||
}
|
||||
}
|
||||
|
||||
/* Return the amount of data this dissector was able to dissect */
|
||||
return tvb_length(tvb);
|
||||
}
|
||||
|
||||
|
||||
/* Register the protocol with Wireshark */
|
||||
void
|
||||
proto_register_moldudp64(void)
|
||||
{
|
||||
module_t *moldudp64_module;
|
||||
|
||||
/* Setup list of header fields */
|
||||
static hf_register_info hf[] = {
|
||||
|
||||
{ &hf_moldudp64_session,
|
||||
{ "Session", "moldudp64.session", FT_STRING, BASE_NONE, NULL, 0,
|
||||
"The session to which this packet belongs.", HFILL }},
|
||||
|
||||
{ &hf_moldudp64_sequence,
|
||||
{ "Sequence", "moldudp64.sequence", FT_UINT64, BASE_DEC, NULL, 0,
|
||||
"The sequence number of the first message in this packet.", HFILL }},
|
||||
|
||||
{ &hf_moldudp64_count,
|
||||
{ "Count", "moldudp64.count", FT_UINT16, BASE_DEC, NULL, 0,
|
||||
"The number of messages contained in this packet.", HFILL }},
|
||||
|
||||
{ &hf_moldudp64_msgblk,
|
||||
{ "Message Block", "moldudp64.msgblock", FT_NONE, BASE_NONE, NULL, 0,
|
||||
"A message.", HFILL }},
|
||||
|
||||
{ &hf_moldudp64_msglen,
|
||||
{ "Length", "moldudp64.msglen", FT_UINT16, BASE_DEC, NULL, 0,
|
||||
"The length of this message.", HFILL }},
|
||||
|
||||
{ &hf_moldudp64_msgseq,
|
||||
{ "Sequence", "moldudp64.msgseq", FT_UINT64, BASE_DEC, NULL, 0,
|
||||
"The sequence number of this message.", HFILL }},
|
||||
|
||||
{ &hf_moldudp64_msgdata,
|
||||
{ "Payload", "moldudp64.msgdata", FT_BYTES, BASE_NONE, NULL, 0,
|
||||
"The payload data of this message.", HFILL }}
|
||||
};
|
||||
|
||||
/* Setup protocol subtree array */
|
||||
static gint *ett[] = {
|
||||
&ett_moldudp64,
|
||||
&ett_moldudp64_msgblk
|
||||
};
|
||||
|
||||
/* Register the protocol name and description */
|
||||
proto_moldudp64 = proto_register_protocol("MoldUDP64",
|
||||
"MoldUDP64", "moldudp64");
|
||||
|
||||
/* Required function calls to register the header fields and subtrees used */
|
||||
proto_register_field_array(proto_moldudp64, hf, array_length(hf));
|
||||
proto_register_subtree_array(ett, array_length(ett));
|
||||
|
||||
/* Register preferences module */
|
||||
moldudp64_module = prefs_register_protocol(proto_moldudp64,
|
||||
proto_reg_handoff_moldudp64);
|
||||
|
||||
/* Register a sample port preference */
|
||||
prefs_register_uint_preference(moldudp64_module, "udp.port", "MoldUDP64 UDP Port",
|
||||
"MoldUDP64 UDP port to dissect on.",
|
||||
10, &pf_moldudp64_port);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
proto_reg_handoff_moldudp64(void)
|
||||
{
|
||||
static gboolean initialized = FALSE;
|
||||
static dissector_handle_t moldudp64_handle;
|
||||
static int currentPort;
|
||||
|
||||
if (!initialized) {
|
||||
|
||||
moldudp64_handle = new_create_dissector_handle(dissect_moldudp64,
|
||||
proto_moldudp64);
|
||||
initialized = TRUE;
|
||||
} else {
|
||||
|
||||
dissector_delete_uint("udp.port", currentPort, moldudp64_handle);
|
||||
}
|
||||
|
||||
currentPort = pf_moldudp64_port;
|
||||
|
||||
dissector_add_uint("udp.port", currentPort, moldudp64_handle);
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
||||
*
|
||||
* Local variables:
|
||||
* c-basic-offset: 4
|
||||
* tab-width: 4
|
||||
* indent-tabs-mode: nil
|
||||
* End:
|
||||
*
|
||||
* vi: set shiftwidth=4 tabstop=4 expandtab:
|
||||
* :indentSize=4:tabSize=4:noTabs=true:
|
||||
*/
|
||||
Loading…
Reference in New Issue