forked from osmocom/wireshark
![Michael Mann](/assets/img/avatar_default.png)
Started by grepping call_dissector_with_data, call_dissector_only and call_dissector and traced the handles passed into them to a find_dissector within the dissector. Then replaced find_dissector with find_dissector_add_dependency and added the protocol id from the dissector. "data" dissector was not considered to be a dependency. Change-Id: I15d0d77301306587ef8e7af5876e74231816890d Reviewed-on: https://code.wireshark.org/review/14509 Petri-Dish: Michael Mann <mmann78@netscape.net> Reviewed-by: Michael Mann <mmann78@netscape.net>
310 lines
10 KiB
C
310 lines
10 KiB
C
/* packet-nasdaq-soup.c
|
|
* Routines for NASDAQ SOUP 2.0 Protocol dissection
|
|
* Copyright 2007,2008 Didier Gautheron <dgautheron@magic.fr>
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Documentation: http://www.nasdaqtrader.com/Trader.aspx?id=DPSpecs
|
|
* ex:
|
|
* http://www.nasdaqtrader.com/content/technicalsupport/specifications/dataproducts/souptcp.pdf
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <epan/packet.h>
|
|
#include <epan/prefs.h>
|
|
|
|
|
|
void proto_register_nasdaq_soup(void);
|
|
void proto_reg_handoff_nasdaq_soup(void);
|
|
|
|
static const value_string message_types_val[] = {
|
|
{ 'S', "Sequenced Data" },
|
|
{ 'R', "Client Heartbeat" },
|
|
{ 'H', "Server Heartbeat" },
|
|
{ '+' , "Debug Packet" },
|
|
{ 'A', "Login Accepted" },
|
|
{ 'J', "Login Rejected" },
|
|
{ 'L', "Login Request" },
|
|
{ 'U', "Unsequenced Data" },
|
|
{ 'O', "Logout Request" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string reject_code_val[] = {
|
|
{ 'A', "Not authorized" },
|
|
{ 'S', "Session not available" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/* Initialize the protocol and registered fields */
|
|
static int proto_nasdaq_soup = -1;
|
|
static dissector_handle_t nasdaq_soup_handle;
|
|
static dissector_handle_t nasdaq_itch_handle;
|
|
|
|
/* desegmentation of Nasdaq Soup */
|
|
static gboolean nasdaq_soup_desegment = TRUE;
|
|
|
|
static range_t *global_nasdaq_soup_tcp_range = NULL;
|
|
static range_t *nasdaq_soup_tcp_range = NULL;
|
|
|
|
/* Initialize the subtree pointers */
|
|
static gint ett_nasdaq_soup = -1;
|
|
|
|
static int hf_nasdaq_soup_packet_type = -1;
|
|
static int hf_nasdaq_soup_message = -1;
|
|
static int hf_nasdaq_soup_text = -1;
|
|
static int hf_nasdaq_soup_packet_eol = -1;
|
|
static int hf_nasdaq_soup_username = -1;
|
|
static int hf_nasdaq_soup_password = -1;
|
|
static int hf_nasdaq_soup_session = -1;
|
|
static int hf_nasdaq_soup_seq_number = -1;
|
|
static int hf_nasdaq_soup_reject_code = -1;
|
|
|
|
static void
|
|
dissect_nasdaq_soup_packet(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, proto_tree *tree, int offset, int linelen)
|
|
{
|
|
guint8 nasdaq_soup_type;
|
|
tvbuff_t *new_tvb = NULL;
|
|
|
|
nasdaq_soup_type = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_packet_type, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
|
|
switch (nasdaq_soup_type) {
|
|
case '+': /* debug msg */
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_text, tvb, offset, linelen -1, ENC_ASCII|ENC_NA);
|
|
offset += linelen -1;
|
|
break;
|
|
case 'A': /* login accept */
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_session, tvb, offset, 10, ENC_ASCII|ENC_NA);
|
|
offset += 10;
|
|
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_seq_number, tvb, offset, 10, ENC_ASCII|ENC_NA);
|
|
offset += 10;
|
|
break;
|
|
case 'J': /* login reject */
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_reject_code, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
break;
|
|
|
|
case 'U': /* unsequenced data packed */
|
|
case 'S': /* sequenced data packed */
|
|
if (linelen > 1 && nasdaq_itch_handle) {
|
|
new_tvb = tvb_new_subset_length(tvb, offset,linelen -1);
|
|
} else {
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_message, tvb, offset, linelen -1, ENC_ASCII|ENC_NA);
|
|
}
|
|
offset += linelen -1;
|
|
break;
|
|
|
|
case 'L': /* login request */
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_username, tvb, offset, 6, ENC_ASCII|ENC_NA);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_password, tvb, offset, 10, ENC_ASCII|ENC_NA);
|
|
offset += 10;
|
|
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_session, tvb, offset, 10, ENC_ASCII|ENC_NA);
|
|
offset += 10;
|
|
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_seq_number, tvb, offset, 10, ENC_ASCII|ENC_NA);
|
|
offset += 10;
|
|
break;
|
|
|
|
case 'H': /* server heartbeat */
|
|
case 'O': /* logout request */
|
|
case 'R': /* client heartbeat */
|
|
/* no payload */
|
|
break;
|
|
default:
|
|
/* unknown */
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_message, tvb, offset, linelen -1, ENC_ASCII|ENC_NA);
|
|
offset += linelen -1;
|
|
break;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_nasdaq_soup_packet_eol, tvb, offset, 1, ENC_ASCII|ENC_NA);
|
|
if (new_tvb) {
|
|
call_dissector(nasdaq_itch_handle, new_tvb, pinfo, parent_tree);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* ---------------------------- */
|
|
static int
|
|
dissect_nasdaq_soup(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
|
|
{
|
|
proto_item *ti;
|
|
proto_tree *nasdaq_soup_tree = NULL;
|
|
guint8 nasdaq_soup_type;
|
|
int linelen;
|
|
gint next_offset;
|
|
int offset = 0;
|
|
gint counter = 0;
|
|
|
|
while (tvb_offset_exists(tvb, offset)) {
|
|
/* there's only a \n no \r */
|
|
linelen = tvb_find_line_end(tvb, offset, -1, &next_offset, nasdaq_soup_desegment && pinfo->can_desegment);
|
|
if (linelen == -1) {
|
|
/*
|
|
* We didn't find a line ending, and we're doing desegmentation;
|
|
* tell the TCP dissector where the data for this message starts
|
|
* in the data it handed us, and tell it we need one more byte
|
|
* (we may need more, but we'll try again if what we get next
|
|
* isn't enough), and return.
|
|
*/
|
|
pinfo->desegment_offset = offset;
|
|
pinfo->desegment_len = DESEGMENT_ONE_MORE_SEGMENT;
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
nasdaq_soup_type = tvb_get_guint8(tvb, offset);
|
|
if (counter == 0) {
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Nasdaq-SOUP");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
}
|
|
if (counter) {
|
|
col_append_str(pinfo->cinfo, COL_INFO, "; ");
|
|
col_set_fence(pinfo->cinfo, COL_INFO);
|
|
}
|
|
col_append_str(pinfo->cinfo, COL_INFO, val_to_str(nasdaq_soup_type, message_types_val, "Unknown packet type (0x%02x)"));
|
|
|
|
counter++;
|
|
ti = proto_tree_add_item(tree, proto_nasdaq_soup, tvb, offset, linelen +1, ENC_NA);
|
|
nasdaq_soup_tree = proto_item_add_subtree(ti, ett_nasdaq_soup);
|
|
|
|
dissect_nasdaq_soup_packet(tvb, pinfo, tree, nasdaq_soup_tree, offset, linelen);
|
|
offset = next_offset;
|
|
}
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
/* Register the protocol with Wireshark */
|
|
static void nasdaq_soup_prefs(void)
|
|
{
|
|
dissector_delete_uint_range("tcp.port", nasdaq_soup_tcp_range, nasdaq_soup_handle);
|
|
g_free(nasdaq_soup_tcp_range);
|
|
nasdaq_soup_tcp_range = range_copy(global_nasdaq_soup_tcp_range);
|
|
dissector_add_uint_range("tcp.port", nasdaq_soup_tcp_range, nasdaq_soup_handle);
|
|
}
|
|
|
|
void
|
|
proto_register_nasdaq_soup(void)
|
|
{
|
|
|
|
/* Setup list of header fields See Section 1.6.1 for details*/
|
|
static hf_register_info hf[] = {
|
|
|
|
{ &hf_nasdaq_soup_packet_type,
|
|
{ "Packet Type", "nasdaq-soup.packet_type",
|
|
FT_UINT8, BASE_DEC, VALS(message_types_val), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_nasdaq_soup_reject_code,
|
|
{ "Login Reject Code", "nasdaq-soup.reject_code",
|
|
FT_UINT8, BASE_DEC, VALS(reject_code_val), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_nasdaq_soup_message,
|
|
{ "Message", "nasdaq-soup.message",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_nasdaq_soup_text,
|
|
{ "Debug Text", "nasdaq-soup.text",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_nasdaq_soup_username,
|
|
{ "User Name", "nasdaq-soup.username",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_nasdaq_soup_password,
|
|
{ "Password", "nasdaq-soup.password",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_nasdaq_soup_session,
|
|
{ "Session", "nasdaq-soup.session",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Session ID", HFILL }},
|
|
|
|
{ &hf_nasdaq_soup_seq_number,
|
|
{ "Sequence number", "nasdaq-soup.seq_number",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_nasdaq_soup_packet_eol,
|
|
{ "End Of Packet", "nasdaq-soup.packet_eol",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }}
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_nasdaq_soup
|
|
};
|
|
|
|
module_t *nasdaq_soup_module;
|
|
|
|
/* Register the protocol name and description */
|
|
proto_nasdaq_soup = proto_register_protocol("Nasdaq-SoupTCP version 2.0","NASDAQ-SOUP", "nasdaq_soup");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_nasdaq_soup, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
nasdaq_soup_module = prefs_register_protocol(proto_nasdaq_soup, nasdaq_soup_prefs);
|
|
prefs_register_bool_preference(nasdaq_soup_module, "desegment",
|
|
"Reassemble Nasdaq-SoupTCP messages spanning multiple TCP segments",
|
|
"Whether the Nasdaq-SoupTCP dissector should reassemble messages spanning multiple TCP segments.",
|
|
&nasdaq_soup_desegment);
|
|
|
|
prefs_register_range_preference(nasdaq_soup_module, "tcp.port", "TCP Ports", "TCP Ports range", &global_nasdaq_soup_tcp_range, 65535);
|
|
|
|
nasdaq_soup_tcp_range = range_empty();
|
|
}
|
|
|
|
/* If this dissector uses sub-dissector registration add a registration routine.
|
|
This format is required because a script is used to find these routines and
|
|
create the code that calls these routines.
|
|
*/
|
|
void
|
|
proto_reg_handoff_nasdaq_soup(void)
|
|
{
|
|
nasdaq_soup_handle = create_dissector_handle(dissect_nasdaq_soup, proto_nasdaq_soup);
|
|
nasdaq_itch_handle = find_dissector_add_dependency("nasdaq-itch", proto_nasdaq_soup);
|
|
dissector_add_for_decode_as("tcp.port", nasdaq_soup_handle);
|
|
}
|
|
|
|
/*
|
|
* 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:
|
|
*/
|