2000-04-13 21:03:56 +00:00
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/* packet-ddtp.c
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* Routines for DDTP (Dynamic DNS Tools Protocol) packet disassembly
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* see http://ddt.sourceforge.net/
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2002-09-01 14:30:34 +00:00
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* Olivier Abad <oabad@noos.fr>
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2000-04-13 21:03:56 +00:00
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*
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2006-05-21 04:49:01 +00:00
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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2000-04-13 21:03:56 +00:00
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* Copyright 2000
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2002-08-28 21:04:11 +00:00
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*
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2000-04-13 21:03:56 +00:00
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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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2002-08-28 21:04:11 +00:00
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*
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2000-04-13 21:03:56 +00:00
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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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2002-08-28 21:04:11 +00:00
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*
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2000-04-13 21:03:56 +00:00
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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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2012-06-28 22:56:06 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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2000-04-13 21:03:56 +00:00
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*/
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#include "config.h"
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2002-01-21 07:37:49 +00:00
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#include <epan/packet.h>
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2014-08-04 01:10:24 +00:00
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#include <epan/expert.h>
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2014-10-05 19:57:05 +00:00
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#define DDTP_VERSION_ERROR 0
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#define DDTP_VERSION_4 1
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#define DDTP_VERSION_5 2
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2014-08-04 01:10:24 +00:00
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2014-10-05 19:57:05 +00:00
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#define DDTP_ENCRYPT_ERROR 0
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#define DDTP_ENCRYPT_PLAINTEXT 1
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#define DDTP_ENCRYPT_BLOWFISH 2
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2014-08-04 01:10:24 +00:00
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2014-10-05 19:57:05 +00:00
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#define DDTP_MESSAGE_ERROR 0
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#define DDTP_UPDATE_QUERY 1
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#define DDTP_UPDATE_REPLY 2
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#define DDTP_ALIVE_QUERY 3
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#define DDTP_ALIVE_REPLY 4
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2014-08-04 01:10:24 +00:00
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2014-10-05 19:57:05 +00:00
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#define DDTP_MARK_ONLINE 0
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#define DDTP_MARK_OFFLINE 1
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2014-08-04 01:10:24 +00:00
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2014-10-05 19:57:05 +00:00
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#define DDTP_UPDATE_SUCCEEDED 0
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#define DDTP_UPDATE_FAILED 1
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#define DDTP_INVALID_PASSWORD 2
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#define DDTP_INVALID_ACCOUNT 3
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#define DDTP_INVALID_OPCODE 4
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2000-04-13 21:03:56 +00:00
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2013-03-16 16:25:41 +00:00
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void proto_register_ddtp (void);
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void proto_reg_handoff_ddtp (void);
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2000-04-13 21:03:56 +00:00
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static int proto_ddtp = -1;
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static int hf_ddtp_version = -1;
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static int hf_ddtp_encrypt = -1;
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static int hf_ddtp_hostid = -1;
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static int hf_ddtp_msgtype = -1;
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static int hf_ddtp_opcode = -1;
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static int hf_ddtp_ipaddr = -1;
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static int hf_ddtp_status = -1;
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2014-08-04 01:10:24 +00:00
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static int hf_ddtp_alive = -1;
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2000-04-13 21:03:56 +00:00
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static int ett_ddtp = -1;
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2014-08-04 01:10:24 +00:00
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static expert_field ei_ddtp_msgtype = EI_INIT;
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2014-10-05 19:57:05 +00:00
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#define UDP_PORT_DDTP 1052
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2000-04-13 21:03:56 +00:00
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2003-01-19 21:43:18 +00:00
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/*
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* XXX - is 0 an invalid value? If so, should we remove it from this
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* list, so that putative DDNS packets with a version number of 0 are
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* rejected?
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*/
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2000-04-13 21:03:56 +00:00
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static const value_string vals_ddtp_version[] = {
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{ DDTP_VERSION_ERROR, "Protocol Error" },
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{ DDTP_VERSION_4, "4" },
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{ DDTP_VERSION_5, "5" },
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{ 0, NULL}
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};
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static const value_string vals_ddtp_encrypt[] = {
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{ DDTP_ENCRYPT_ERROR, "Encryption Error" },
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{ DDTP_ENCRYPT_PLAINTEXT, "Plain text" },
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{ DDTP_ENCRYPT_BLOWFISH, "Blowfish" },
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{ 0, NULL}
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};
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static const value_string vals_ddtp_msgtype[] = {
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{ DDTP_MESSAGE_ERROR, "Message Error" },
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{ DDTP_UPDATE_QUERY, "Update Query" },
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{ DDTP_UPDATE_REPLY, "Update Reply" },
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{ DDTP_ALIVE_QUERY, "Alive Query" },
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{ DDTP_ALIVE_REPLY, "Alive Reply" },
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{ 0, NULL}
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};
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static const value_string vals_ddtp_opcode[] = {
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{ DDTP_MARK_ONLINE, "Mark online" },
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{ DDTP_MARK_OFFLINE, "Mark offline" },
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{ 0, NULL}
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};
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static const value_string vals_ddtp_status[] = {
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{ DDTP_UPDATE_SUCCEEDED, "Update succeeded" },
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{ DDTP_UPDATE_FAILED, "Update failed" },
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{ DDTP_INVALID_PASSWORD, "Invalid password" },
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{ DDTP_INVALID_ACCOUNT, "Invalid account" },
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{ DDTP_INVALID_OPCODE, "Invalid opcode" },
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{ 0, NULL}
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};
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2003-01-19 21:43:18 +00:00
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static int
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2012-09-10 21:40:21 +00:00
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dissect_ddtp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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2000-06-12 10:01:54 +00:00
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{
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2014-08-04 01:10:24 +00:00
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proto_tree *ddtp_tree;
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2000-06-12 10:01:54 +00:00
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proto_item *ti;
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2000-04-13 21:03:56 +00:00
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2003-01-19 21:43:18 +00:00
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/*
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* If we don't recognize the version number, don't dissect this.
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*/
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2014-08-04 01:10:24 +00:00
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if (tvb_reported_length(tvb) < 4)
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return 0;
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if (try_val_to_str(tvb_get_ntohl(tvb, 0), vals_ddtp_version) == NULL)
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2014-10-05 19:57:05 +00:00
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return 0;
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2003-01-19 21:43:18 +00:00
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2010-01-13 20:32:01 +00:00
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/* Indicate what kind of message this is. */
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col_set_str (pinfo->cinfo, COL_PROTOCOL, "DDTP");
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/* In case we throw an exception below. */
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col_clear (pinfo->cinfo, COL_INFO);
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2014-10-05 19:57:05 +00:00
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ti = proto_tree_add_item(tree, proto_ddtp, tvb, 0, -1, ENC_NA);
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ddtp_tree = proto_item_add_subtree(ti, ett_ddtp);
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2000-04-13 21:03:56 +00:00
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2014-10-05 19:57:05 +00:00
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proto_tree_add_item(ddtp_tree, hf_ddtp_version, tvb, 0, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(ddtp_tree, hf_ddtp_encrypt, tvb, 4, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(ddtp_tree, hf_ddtp_hostid, tvb, 8, 4, ENC_BIG_ENDIAN);
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2014-08-04 01:10:24 +00:00
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Remove more "CHECK_DISPLAY_AS_DATA()" calls and "pinfo->current_proto ="
statements.
Move the setting of the Protocol column in various dissectors before
anything is fetched from the packet, and also clear the Info column at
that point in those and some other dissectors, so that if an exception
is thrown, the columns don't reflect the previous protocol.
Don't use
col_add_fstr(..., "%s", string);
Use
col_add_str(..., string);
as it does the same thing, but doesn't drag all the heavy *printf
machinery in.
Fix the DDTP dissector to set the Info column regardless of whether
we're building a protocol tree or not, and to set it to "Encrypted
payload" if the payload is encrypted. Also fix a typo in a field name.
Register the FTP data dissector as being associated with the FTP data
protocol, not the FTP protocol (the removed "CHECK_DISPLAY_AS_DATA()"
call checked "proto_ftp_data", and the removed "pinfo->current_proto ="
line set it to "FTP-DATA", so it should be associated with
"proto_ftp_data").
Make the H1 dissector check whether the frame has at least 2 bytes in it
before checking the first two bytes; heuristic dissectors must not throw
exceptions until they've accepted the packet as one of theirs.
Use "tvb_format_text()" rather than "tvb_get_ptr()" and "format_text()"
in some dissectors where the result of "tvb_get_ptr()" is used only in
the "format_text()" call.
In the Quake dissector, don't check whether there are at least 4 bytes
in the packet - if we return, the packet won't be dissected at all (it's
not as if some other dissector will get to handle it), and, if we don't
return, we'll throw an exception if there aren't at least 4 bytes in the
packet, so the packet will be marked as short or malformed, as
appropriate.
In the RIPng dissector, associate the table of strings for the command
field with the command field, so that the dissector doesn't have to
format the string for the protocol tree entry itself, and so that the
filter construction dialog box can let you select "Request" or
"Response" from a list rather than requiring you to know the values for
"Request" and "Response".
Make "dissect_rpc()" static, as it's called only through a heuristic
dissector list.
Use "col_set_str()" to set the COL_PROTOCOL column for RPC protocols;
the string used is from a table provided by the dissector, and is a
string constant.
Don't format the Info column for WSP into a buffer and then format that
buffer into the column with "%s" - "col_add_fstr()" can do the
formatting for you, without having to allocate your own buffer (or run
through the *printf machinery twice).
Don't fetch fields from the WTP packet until you're ready to use them,
so that you don't throw an exception before you even set the Protocol
column or clear the Info column.
Use "pinfo->destport", not "pi.destport", in the Zebra dissector when
checking whether the packet is a request or reply, and do the check by
comparing with "pinfo->match_port" rather than TCP_PORT_ZEBRA (so that
if the dissector is ever registered on another port, it still correctly
determines whether the packet is a request or reply - the Network
Monitor HTTP dissector has port 80 wired into its brain, which is a bit
irritating if you're trying to get it to dissect HTTP proxy traffic on
port 3128 or proxy administration UI traffic on port 3132).
svn path=/trunk/; revision=2931
2001-01-22 08:03:46 +00:00
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if (tvb_get_ntohl(tvb, 4) == DDTP_ENCRYPT_PLAINTEXT) {
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2014-10-05 19:57:05 +00:00
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ti = proto_tree_add_item(ddtp_tree, hf_ddtp_msgtype, tvb, 12, 4, ENC_BIG_ENDIAN);
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switch (tvb_get_ntohl(tvb, 12)) {
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case DDTP_MESSAGE_ERROR :
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col_set_str(pinfo->cinfo, COL_INFO, "Message Error");
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break;
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case DDTP_UPDATE_QUERY :
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col_set_str(pinfo->cinfo, COL_INFO, "Update Query");
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proto_tree_add_item(ddtp_tree, hf_ddtp_opcode, tvb, 16, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(ddtp_tree, hf_ddtp_ipaddr, tvb, 20, 4, ENC_BIG_ENDIAN);
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break;
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case DDTP_UPDATE_REPLY :
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col_set_str(pinfo->cinfo, COL_INFO, "Update Reply");
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proto_tree_add_item(ddtp_tree, hf_ddtp_status, tvb, 16, 4, ENC_BIG_ENDIAN);
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break;
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case DDTP_ALIVE_QUERY :
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col_set_str(pinfo->cinfo, COL_INFO, "Alive Query");
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proto_tree_add_item(ddtp_tree, hf_ddtp_alive, tvb, 16, 4, ENC_BIG_ENDIAN);
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break;
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case DDTP_ALIVE_REPLY :
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col_set_str(pinfo->cinfo, COL_INFO, "Alive Reply");
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proto_tree_add_item(ddtp_tree, hf_ddtp_alive, tvb, 16, 4, ENC_BIG_ENDIAN);
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break;
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default :
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col_set_str(pinfo->cinfo, COL_INFO, "Unknown type");
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expert_add_info(pinfo, ti, &ei_ddtp_msgtype);
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}
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Remove more "CHECK_DISPLAY_AS_DATA()" calls and "pinfo->current_proto ="
statements.
Move the setting of the Protocol column in various dissectors before
anything is fetched from the packet, and also clear the Info column at
that point in those and some other dissectors, so that if an exception
is thrown, the columns don't reflect the previous protocol.
Don't use
col_add_fstr(..., "%s", string);
Use
col_add_str(..., string);
as it does the same thing, but doesn't drag all the heavy *printf
machinery in.
Fix the DDTP dissector to set the Info column regardless of whether
we're building a protocol tree or not, and to set it to "Encrypted
payload" if the payload is encrypted. Also fix a typo in a field name.
Register the FTP data dissector as being associated with the FTP data
protocol, not the FTP protocol (the removed "CHECK_DISPLAY_AS_DATA()"
call checked "proto_ftp_data", and the removed "pinfo->current_proto ="
line set it to "FTP-DATA", so it should be associated with
"proto_ftp_data").
Make the H1 dissector check whether the frame has at least 2 bytes in it
before checking the first two bytes; heuristic dissectors must not throw
exceptions until they've accepted the packet as one of theirs.
Use "tvb_format_text()" rather than "tvb_get_ptr()" and "format_text()"
in some dissectors where the result of "tvb_get_ptr()" is used only in
the "format_text()" call.
In the Quake dissector, don't check whether there are at least 4 bytes
in the packet - if we return, the packet won't be dissected at all (it's
not as if some other dissector will get to handle it), and, if we don't
return, we'll throw an exception if there aren't at least 4 bytes in the
packet, so the packet will be marked as short or malformed, as
appropriate.
In the RIPng dissector, associate the table of strings for the command
field with the command field, so that the dissector doesn't have to
format the string for the protocol tree entry itself, and so that the
filter construction dialog box can let you select "Request" or
"Response" from a list rather than requiring you to know the values for
"Request" and "Response".
Make "dissect_rpc()" static, as it's called only through a heuristic
dissector list.
Use "col_set_str()" to set the COL_PROTOCOL column for RPC protocols;
the string used is from a table provided by the dissector, and is a
string constant.
Don't format the Info column for WSP into a buffer and then format that
buffer into the column with "%s" - "col_add_fstr()" can do the
formatting for you, without having to allocate your own buffer (or run
through the *printf machinery twice).
Don't fetch fields from the WTP packet until you're ready to use them,
so that you don't throw an exception before you even set the Protocol
column or clear the Info column.
Use "pinfo->destport", not "pi.destport", in the Zebra dissector when
checking whether the packet is a request or reply, and do the check by
comparing with "pinfo->match_port" rather than TCP_PORT_ZEBRA (so that
if the dissector is ever registered on another port, it still correctly
determines whether the packet is a request or reply - the Network
Monitor HTTP dissector has port 80 wired into its brain, which is a bit
irritating if you're trying to get it to dissect HTTP proxy traffic on
port 3128 or proxy administration UI traffic on port 3132).
svn path=/trunk/; revision=2931
2001-01-22 08:03:46 +00:00
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} else {
|
2014-10-05 19:57:05 +00:00
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col_set_str(pinfo->cinfo, COL_INFO, "Encrypted payload");
|
Remove more "CHECK_DISPLAY_AS_DATA()" calls and "pinfo->current_proto ="
statements.
Move the setting of the Protocol column in various dissectors before
anything is fetched from the packet, and also clear the Info column at
that point in those and some other dissectors, so that if an exception
is thrown, the columns don't reflect the previous protocol.
Don't use
col_add_fstr(..., "%s", string);
Use
col_add_str(..., string);
as it does the same thing, but doesn't drag all the heavy *printf
machinery in.
Fix the DDTP dissector to set the Info column regardless of whether
we're building a protocol tree or not, and to set it to "Encrypted
payload" if the payload is encrypted. Also fix a typo in a field name.
Register the FTP data dissector as being associated with the FTP data
protocol, not the FTP protocol (the removed "CHECK_DISPLAY_AS_DATA()"
call checked "proto_ftp_data", and the removed "pinfo->current_proto ="
line set it to "FTP-DATA", so it should be associated with
"proto_ftp_data").
Make the H1 dissector check whether the frame has at least 2 bytes in it
before checking the first two bytes; heuristic dissectors must not throw
exceptions until they've accepted the packet as one of theirs.
Use "tvb_format_text()" rather than "tvb_get_ptr()" and "format_text()"
in some dissectors where the result of "tvb_get_ptr()" is used only in
the "format_text()" call.
In the Quake dissector, don't check whether there are at least 4 bytes
in the packet - if we return, the packet won't be dissected at all (it's
not as if some other dissector will get to handle it), and, if we don't
return, we'll throw an exception if there aren't at least 4 bytes in the
packet, so the packet will be marked as short or malformed, as
appropriate.
In the RIPng dissector, associate the table of strings for the command
field with the command field, so that the dissector doesn't have to
format the string for the protocol tree entry itself, and so that the
filter construction dialog box can let you select "Request" or
"Response" from a list rather than requiring you to know the values for
"Request" and "Response".
Make "dissect_rpc()" static, as it's called only through a heuristic
dissector list.
Use "col_set_str()" to set the COL_PROTOCOL column for RPC protocols;
the string used is from a table provided by the dissector, and is a
string constant.
Don't format the Info column for WSP into a buffer and then format that
buffer into the column with "%s" - "col_add_fstr()" can do the
formatting for you, without having to allocate your own buffer (or run
through the *printf machinery twice).
Don't fetch fields from the WTP packet until you're ready to use them,
so that you don't throw an exception before you even set the Protocol
column or clear the Info column.
Use "pinfo->destport", not "pi.destport", in the Zebra dissector when
checking whether the packet is a request or reply, and do the check by
comparing with "pinfo->match_port" rather than TCP_PORT_ZEBRA (so that
if the dissector is ever registered on another port, it still correctly
determines whether the packet is a request or reply - the Network
Monitor HTTP dissector has port 80 wired into its brain, which is a bit
irritating if you're trying to get it to dissect HTTP proxy traffic on
port 3128 or proxy administration UI traffic on port 3132).
svn path=/trunk/; revision=2931
2001-01-22 08:03:46 +00:00
|
|
|
}
|
2015-04-16 13:58:53 +00:00
|
|
|
return tvb_reported_length(tvb);
|
2000-04-13 21:03:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
proto_register_ddtp(void)
|
|
|
|
|
{
|
|
|
|
|
static hf_register_info hf_ddtp[] = {
|
2014-10-05 19:57:05 +00:00
|
|
|
{ &hf_ddtp_version,
|
|
|
|
|
{ "Version", "ddtp.version", FT_UINT32, BASE_DEC, VALS(vals_ddtp_version), 0x0,
|
|
|
|
|
NULL, HFILL }},
|
|
|
|
|
{ &hf_ddtp_encrypt,
|
|
|
|
|
{ "Encryption", "ddtp.encrypt", FT_UINT32, BASE_DEC, VALS(vals_ddtp_encrypt), 0x0,
|
|
|
|
|
"Encryption type", HFILL }},
|
|
|
|
|
{ &hf_ddtp_hostid,
|
|
|
|
|
{ "Hostid", "ddtp.hostid", FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
|
|
|
"Host ID", HFILL }},
|
|
|
|
|
{ &hf_ddtp_msgtype,
|
|
|
|
|
{ "Message type", "ddtp.msgtype", FT_UINT32, BASE_DEC, VALS(vals_ddtp_msgtype), 0x0,
|
|
|
|
|
NULL, HFILL }},
|
|
|
|
|
{ &hf_ddtp_opcode,
|
|
|
|
|
{ "Opcode", "ddtp.opcode", FT_UINT32, BASE_DEC, VALS(vals_ddtp_opcode), 0x0,
|
|
|
|
|
"Update query opcode", HFILL }},
|
|
|
|
|
{ &hf_ddtp_ipaddr,
|
|
|
|
|
{ "IP address", "ddtp.ipaddr", FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
|
|
|
NULL, HFILL }},
|
|
|
|
|
{ &hf_ddtp_status,
|
|
|
|
|
{ "Status", "ddtp.status", FT_UINT32, BASE_DEC, VALS(vals_ddtp_status), 0x0,
|
|
|
|
|
"Update reply status", HFILL }},
|
|
|
|
|
{ &hf_ddtp_alive,
|
|
|
|
|
{ "Dummy", "ddtp.alive", FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
|
|
|
NULL, HFILL }},
|
2000-04-13 21:03:56 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static gint *ett[] = { &ett_ddtp };
|
|
|
|
|
|
2014-08-04 01:10:24 +00:00
|
|
|
static ei_register_info ei[] = {
|
|
|
|
|
{ &ei_ddtp_msgtype, { "ddtp.msgtype.unknown", PI_PROTOCOL, PI_WARN, "Unknown type", EXPFILL }},
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
expert_module_t* expert_ddtp;
|
|
|
|
|
|
2016-10-05 20:33:54 +00:00
|
|
|
proto_ddtp = proto_register_protocol("Dynamic DNS Tools Protocol", "DDTP", "ddtp");
|
2000-04-13 21:16:22 +00:00
|
|
|
proto_register_field_array(proto_ddtp, hf_ddtp, array_length(hf_ddtp));
|
2000-04-13 21:03:56 +00:00
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
2014-08-04 01:10:24 +00:00
|
|
|
expert_ddtp = expert_register_protocol(proto_ddtp);
|
|
|
|
|
expert_register_field_array(expert_ddtp, ei, array_length(ei));
|
2000-04-13 21:03:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
proto_reg_handoff_ddtp(void)
|
|
|
|
|
{
|
2001-12-03 04:00:26 +00:00
|
|
|
dissector_handle_t ddtp_handle;
|
|
|
|
|
|
2015-12-09 03:49:44 +00:00
|
|
|
ddtp_handle = create_dissector_handle(dissect_ddtp, proto_ddtp);
|
2016-10-05 20:33:54 +00:00
|
|
|
dissector_add_uint_with_preference("udp.port", UDP_PORT_DDTP, ddtp_handle);
|
2000-04-13 21:03:56 +00:00
|
|
|
}
|
2014-10-05 19:57:05 +00:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 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:
|
|
|
|
|
*/
|