From Xiao Xiangquan via https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5846
A new dissector for uTorrent Transport Protocol From me : * Add link to spec BEP-0029 * Add note about type/version * Rework extensions loop * Use 2-space indenting svn path=/trunk/; revision=36716
This commit is contained in:
Alexis La Goutte
parent
d059b43226
commit
372639e7f8
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@ -0,0 +1,710 @@
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/* packet-bt-utp.c
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* Routines for BT-UTP dissection
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* Copyright 2011, Xiao Xiangquan <xiaoxiangquan@gmail.com>
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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 1999 Gerald Combs
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 <epan/packet.h>
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#include <epan/prefs.h>
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#define DEFAULT_UDP_PORT 55627
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static const value_string bt_utp_type_vals[] = {
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{ 0, "Data" },
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{ 1, "Fin" },
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{ 2, "State" },
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{ 3, "Reset" },
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{ 4, "Syn" },
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{ 0, NULL }
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};
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#define EXT_NO_EXTENSION 0
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#define EXT_SELECTION_ACKS 1
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#define EXT_EXTENSION_BITS 2
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static const value_string bt_utp_extension_type_vals[] = {
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{ EXT_NO_EXTENSION, "No Extension" },
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{ EXT_SELECTION_ACKS, "Selective acks" },
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{ EXT_EXTENSION_BITS, "Extension bits" },
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{ 0, NULL }
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};
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static int proto_bt_utp = -1;
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/* Specifications: BEP-0029
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http://www.bittorrent.org/beps/bep_0029.html
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Fields Types
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0 4 8 16 24 32
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+-------+-------+---------------+---------------+---------------+
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| ver | type | extension | connection_id |
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+-------+-------+---------------+---------------+---------------+
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| timestamp_microseconds |
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+---------------+---------------+---------------+---------------+
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| timestamp_difference_microseconds |
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+---------------+---------------+---------------+---------------+
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| wnd_size |
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+---------------+---------------+---------------+---------------+
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| seq_nr | ack_nr |
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+---------------+---------------+---------------+---------------+
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0 8 16
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+---------------+---------------+---------------+---------------+
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| extension | len | bitmask
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+---------------+---------------+---------------+---------------+
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|
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+---------------+---------------+....
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*/
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static int hf_bt_utp_ver = -1;
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static int hf_bt_utp_type = -1;
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static int hf_bt_utp_extension = -1;
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static int hf_bt_utp_next_extension_type = -1;
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static int hf_bt_utp_extension_len = -1;
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static int hf_bt_utp_extension_bitmask = -1;
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static int hf_bt_utp_extension_unknown = -1;
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static int hf_bt_utp_connection_id = -1;
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static int hf_bt_utp_timestamp_ms = -1;
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static int hf_bt_utp_timestamp_diff_ms = -1;
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static int hf_bt_utp_wnd_size = -1;
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static int hf_bt_utp_seq_nr = -1;
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static int hf_bt_utp_ack_nr = -1;
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static gint ett_bt_utp = -1;
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static gint ett_bt_utp_extension = -1;
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static guint global_bt_utp_udp_port = DEFAULT_UDP_PORT;
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void proto_reg_handoff_bt_utp(void);
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static int
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dissect_utp_header(tvbuff_t *tvb, proto_tree *tree)
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{
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proto_item *ti;
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proto_tree *ext_tree;
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guint8 extension_type;
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guint8 extension_length;
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int offset = 0;
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/* Strange in LibuTP the first bytes as the following definition
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packet_type (4 high bits)
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protocol version (4 low bits)
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*/
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proto_tree_add_item(tree, hf_bt_utp_ver, tvb, offset, 1, FALSE);
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proto_tree_add_item(tree, hf_bt_utp_type, tvb, offset, 1, FALSE);
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offset += 1;
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proto_tree_add_item(tree, hf_bt_utp_next_extension_type, tvb, offset, 1, FALSE);
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extension_type = tvb_get_guint8(tvb, offset);
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offset += 1;
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proto_tree_add_item(tree, hf_bt_utp_connection_id, tvb, offset, 2, FALSE);
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offset += 2;
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proto_tree_add_item(tree, hf_bt_utp_timestamp_ms, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(tree, hf_bt_utp_timestamp_diff_ms, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(tree, hf_bt_utp_wnd_size, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(tree, hf_bt_utp_seq_nr, tvb, offset, 2, FALSE);
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offset += 2;
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proto_tree_add_item(tree, hf_bt_utp_ack_nr, tvb, offset, 2, FALSE);
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offset += 2;
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/* display the extension tree */
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while(offset <= (int)tvb_length(tvb))
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{
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switch(extension_type){
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case EXT_NO_EXTENSION: /* 0 */
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{
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ti = proto_tree_add_item(tree, hf_bt_utp_extension, tvb, offset, 1, FALSE);
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proto_item_append_text(ti, " No Extension (End)");
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offset += 1;
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break;
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}
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case EXT_SELECTION_ACKS: /* 1 */
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{
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ti = proto_tree_add_item(tree, hf_bt_utp_extension, tvb, offset, -1, FALSE);
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ext_tree = proto_item_add_subtree(ti, ett_bt_utp_extension);
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proto_tree_add_item(ext_tree, hf_bt_utp_next_extension_type, tvb, offset, 1, FALSE);
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extension_type = tvb_get_guint8(tvb, offset);
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offset += 1;
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proto_tree_add_item(ext_tree, hf_bt_utp_extension_len, tvb, offset, 1, FALSE);
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extension_length = tvb_get_guint8(tvb, offset);
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proto_item_append_text(ti, " Selection Acks, Len=%d", extension_length);
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offset += 1;
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proto_tree_add_item(ext_tree, hf_bt_utp_extension_bitmask, tvb, offset, extension_length, FALSE);
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offset += extension_length;
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proto_item_set_len(ti, 1 + 1 + extension_length);
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break;
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}
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case EXT_EXTENSION_BITS: /* 1 */
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{
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ti = proto_tree_add_item(tree, hf_bt_utp_extension, tvb, offset, -1, FALSE);
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ext_tree = proto_item_add_subtree(ti, ett_bt_utp_extension);
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proto_tree_add_item(ext_tree, hf_bt_utp_next_extension_type, tvb, offset, 1, FALSE);
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extension_type = tvb_get_guint8(tvb, offset);
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offset += 1;
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proto_tree_add_item(ext_tree, hf_bt_utp_extension_len, tvb, offset, 1, FALSE);
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extension_length = tvb_get_guint8(tvb, offset);
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proto_item_append_text(ti, " Extension Bits, Len=%d", extension_length);
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offset += 1;
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proto_tree_add_item(ext_tree, hf_bt_utp_extension_bitmask, tvb, offset, extension_length, FALSE);
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offset += extension_length;
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proto_item_set_len(ti, 1 + 1 + extension_length);
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break;
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}
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default:
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ti = proto_tree_add_item(tree, hf_bt_utp_extension, tvb, offset, -1, FALSE);
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ext_tree = proto_item_add_subtree(ti, ett_bt_utp_extension);
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proto_tree_add_item(ext_tree, hf_bt_utp_next_extension_type, tvb, offset, 1, FALSE);
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extension_type = tvb_get_guint8(tvb, offset);
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offset += 1;
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proto_tree_add_item(ext_tree, hf_bt_utp_extension_len, tvb, offset, 1, FALSE);
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extension_length = tvb_get_guint8(tvb, offset);
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proto_item_append_text(ti, " Unknown, Len=%d", extension_length);
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offset += 1;
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proto_tree_add_item(ext_tree, hf_bt_utp_extension_unknown, tvb, offset, extension_length, FALSE);
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offset += extension_length;
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proto_item_set_len(ti, 1 + 1 + extension_length);
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break;
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}
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}
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return offset;
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}
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static int
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dissect_bt_utp(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 *sub_tree;
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int decoded_length = 0;
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/* set the protocol column */
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "BT-uTP");
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/* set the info column */
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col_clear(pinfo->cinfo,COL_INFO);
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col_set_str( pinfo->cinfo, COL_INFO, "uTorrent Transport Protocol" );
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if(tree)
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{
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ti = proto_tree_add_item(tree, proto_bt_utp, tvb, 0, -1, FALSE);
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sub_tree = proto_item_add_subtree(ti, ett_bt_utp);
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decoded_length = dissect_utp_header(tvb, sub_tree);
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}
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return decoded_length;
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}
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void
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proto_register_bt_utp(void)
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{
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static hf_register_info hf[] = {
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{ &hf_bt_utp_ver,
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{ "Version", "bt-utp.ver",
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FT_UINT8, BASE_DEC, NULL, 0x0F,
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NULL, HFILL }
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},
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{ &hf_bt_utp_type,
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{ "Type", "bt-utp.type",
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FT_UINT8, BASE_DEC, VALS(bt_utp_type_vals), 0xF0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_extension,
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{ "Extension", "bt-utp.extension",
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FT_NONE, BASE_NONE, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_next_extension_type,
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{ "Next Extension Type", "bt-utp.next_extension_type",
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FT_UINT8, BASE_DEC, VALS(bt_utp_extension_type_vals), 0x0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_extension_len,
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{ "Extension Length", "bt-utp.extension_len",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_extension_bitmask,
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{ "Extension Bitmask", "bt-utp.extension_bitmask",
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FT_BYTES, BASE_NONE, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_extension_unknown,
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{ "Extension Unknown", "bt-utp.extension_unknown",
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FT_BYTES, BASE_NONE, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_connection_id,
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{ "Connection ID", "bt-utp.connection_id",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_timestamp_ms,
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{ "Timestamp Microseconds", "bt-utp.timestamp_ms",
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FT_UINT32, BASE_DEC, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_timestamp_diff_ms,
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{ "Timestamp Difference Microseconds", "bt-utp.timestamp_diff_ms",
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FT_UINT32, BASE_DEC, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_wnd_size,
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{ "Windows Size", "bt-utp.wnd_size",
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FT_UINT32, BASE_DEC, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_seq_nr,
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{ "Sequence NR", "bt-utp.seq_nr",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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NULL, HFILL }
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},
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{ &hf_bt_utp_ack_nr,
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{ "ACK NR", "bt-utp.ack_nr",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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NULL, HFILL }
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},
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};
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/* Setup protocol subtree array */
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static gint *ett[] = { &ett_bt_utp, &ett_bt_utp_extension };
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module_t *bt_utp_module;
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/* Register protocol */
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proto_bt_utp = proto_register_protocol (
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"uTorrent Transport Protocol", /* name */
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"BT-uTP", /* short name */
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"bt-utp" /* abbrev */
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);
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proto_register_field_array(proto_bt_utp, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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new_register_dissector("bt-utp", dissect_bt_utp, proto_bt_utp);
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/* Register our configuration options */
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bt_utp_module = prefs_register_protocol(proto_bt_utp, proto_reg_handoff_bt_utp);
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prefs_register_uint_preference(bt_utp_module, "udp_port",
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"uTorrent Transport Protocol UDP port",
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"Set the UDP port for uTorrent Transport Protocol.",
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10, &global_bt_utp_udp_port);
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}
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void
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proto_reg_handoff_bt_utp(void)
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{
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static gboolean bt_utp_prefs_initialized = FALSE;
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static dissector_handle_t bt_utp_handle;
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static guint bt_utp_udp_port;
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if (!bt_utp_prefs_initialized)
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{
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bt_utp_handle = new_create_dissector_handle(dissect_bt_utp, proto_bt_utp);
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bt_utp_prefs_initialized = TRUE;
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}
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else
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{
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dissector_delete_uint("udp.port", bt_utp_udp_port, bt_utp_handle);
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}
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/* Set our port number for future use */
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bt_utp_udp_port = global_bt_utp_udp_port;
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dissector_add_uint("udp.port", global_bt_utp_udp_port, bt_utp_handle);
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}
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/*
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* Editor modelines
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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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/* packet-bt-utp.c
|
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* Routines for BT-UTP dissection
|
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* Copyright 2011, Xiao Xiangquan <xiaoxiangquan@gmail.com>
|
||||
*
|
||||
* $Id$
|
||||
*
|
||||
* Wireshark - Network traffic analyzer
|
||||
* By Gerald Combs <gerald@wireshark.org>
|
||||
* Copyright 1999 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
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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 <epan/packet.h>
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#include <epan/prefs.h>
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#define DEFAULT_UDP_PORT 55627
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static const value_string bt_utp_type_vals[] = {
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{ 0, "Data" },
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{ 1, "Fin" },
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{ 2, "State" },
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{ 3, "Reset" },
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{ 4, "Syn" },
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{ 0, NULL }
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};
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#define EXT_NO_EXTENSION 0
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#define EXT_SELECTION_ACKS 1
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#define EXT_EXTENSION_BITS 2
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static const value_string bt_utp_extension_type_vals[] = {
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{ EXT_NO_EXTENSION, "No Extension" },
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{ EXT_SELECTION_ACKS, "Selective acks" },
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{ EXT_EXTENSION_BITS, "Extension bits" },
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{ 0, NULL }
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};
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|
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static int proto_bt_utp = -1;
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|
||||
/* Specifications: BEP-0029
|
||||
http://www.bittorrent.org/beps/bep_0029.html
|
||||
|
||||
Fields Types
|
||||
0 4 8 16 24 32
|
||||
+-------+-------+---------------+---------------+---------------+
|
||||
| ver | type | extension | connection_id |
|
||||
+-------+-------+---------------+---------------+---------------+
|
||||
| timestamp_microseconds |
|
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+---------------+---------------+---------------+---------------+
|
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| timestamp_difference_microseconds |
|
||||
+---------------+---------------+---------------+---------------+
|
||||
| wnd_size |
|
||||
+---------------+---------------+---------------+---------------+
|
||||
| seq_nr | ack_nr |
|
||||
+---------------+---------------+---------------+---------------+
|
||||
|
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0 8 16
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||||
+---------------+---------------+---------------+---------------+
|
||||
| extension | len | bitmask
|
||||
+---------------+---------------+---------------+---------------+
|
||||
|
|
||||
+---------------+---------------+....
|
||||
*/
|
||||
static int hf_bt_utp_ver = -1;
|
||||
static int hf_bt_utp_type = -1;
|
||||
static int hf_bt_utp_extension = -1;
|
||||
static int hf_bt_utp_next_extension_type = -1;
|
||||
static int hf_bt_utp_extension_len = -1;
|
||||
static int hf_bt_utp_extension_bitmask = -1;
|
||||
static int hf_bt_utp_extension_unknown = -1;
|
||||
static int hf_bt_utp_connection_id = -1;
|
||||
static int hf_bt_utp_timestamp_ms = -1;
|
||||
static int hf_bt_utp_timestamp_diff_ms = -1;
|
||||
static int hf_bt_utp_wnd_size = -1;
|
||||
static int hf_bt_utp_seq_nr = -1;
|
||||
static int hf_bt_utp_ack_nr = -1;
|
||||
|
||||
static gint ett_bt_utp = -1;
|
||||
static gint ett_bt_utp_extension = -1;
|
||||
|
||||
static guint global_bt_utp_udp_port = DEFAULT_UDP_PORT;
|
||||
|
||||
void proto_reg_handoff_bt_utp(void);
|
||||
|
||||
static int
|
||||
dissect_utp_header(tvbuff_t *tvb, proto_tree *tree)
|
||||
{
|
||||
proto_item *ti;
|
||||
proto_tree *ext_tree;
|
||||
guint8 extension_type;
|
||||
guint8 extension_length;
|
||||
int offset = 0;
|
||||
|
||||
/* Strange in LibuTP the first bytes as the following definition
|
||||
packet_type (4 high bits)
|
||||
protocol version (4 low bits)
|
||||
*/
|
||||
proto_tree_add_item(tree, hf_bt_utp_ver, tvb, offset, 1, FALSE);
|
||||
proto_tree_add_item(tree, hf_bt_utp_type, tvb, offset, 1, FALSE);
|
||||
offset += 1;
|
||||
proto_tree_add_item(tree, hf_bt_utp_next_extension_type, tvb, offset, 1, FALSE);
|
||||
extension_type = tvb_get_guint8(tvb, offset);
|
||||
offset += 1;
|
||||
proto_tree_add_item(tree, hf_bt_utp_connection_id, tvb, offset, 2, FALSE);
|
||||
offset += 2;
|
||||
proto_tree_add_item(tree, hf_bt_utp_timestamp_ms, tvb, offset, 4, FALSE);
|
||||
offset += 4;
|
||||
proto_tree_add_item(tree, hf_bt_utp_timestamp_diff_ms, tvb, offset, 4, FALSE);
|
||||
offset += 4;
|
||||
proto_tree_add_item(tree, hf_bt_utp_wnd_size, tvb, offset, 4, FALSE);
|
||||
offset += 4;
|
||||
proto_tree_add_item(tree, hf_bt_utp_seq_nr, tvb, offset, 2, FALSE);
|
||||
offset += 2;
|
||||
proto_tree_add_item(tree, hf_bt_utp_ack_nr, tvb, offset, 2, FALSE);
|
||||
offset += 2;
|
||||
|
||||
/* display the extension tree */
|
||||
while(offset <= (int)tvb_length(tvb))
|
||||
{
|
||||
switch(extension_type){
|
||||
case EXT_NO_EXTENSION: /* 0 */
|
||||
{
|
||||
ti = proto_tree_add_item(tree, hf_bt_utp_extension, tvb, offset, 1, FALSE);
|
||||
proto_item_append_text(ti, " No Extension (End)");
|
||||
offset += 1;
|
||||
break;
|
||||
}
|
||||
case EXT_SELECTION_ACKS: /* 1 */
|
||||
{
|
||||
ti = proto_tree_add_item(tree, hf_bt_utp_extension, tvb, offset, -1, FALSE);
|
||||
ext_tree = proto_item_add_subtree(ti, ett_bt_utp_extension);
|
||||
|
||||
proto_tree_add_item(ext_tree, hf_bt_utp_next_extension_type, tvb, offset, 1, FALSE);
|
||||
extension_type = tvb_get_guint8(tvb, offset);
|
||||
offset += 1;
|
||||
|
||||
proto_tree_add_item(ext_tree, hf_bt_utp_extension_len, tvb, offset, 1, FALSE);
|
||||
extension_length = tvb_get_guint8(tvb, offset);
|
||||
proto_item_append_text(ti, " Selection Acks, Len=%d", extension_length);
|
||||
offset += 1;
|
||||
|
||||
proto_tree_add_item(ext_tree, hf_bt_utp_extension_bitmask, tvb, offset, extension_length, FALSE);
|
||||
offset += extension_length;
|
||||
proto_item_set_len(ti, 1 + 1 + extension_length);
|
||||
break;
|
||||
}
|
||||
case EXT_EXTENSION_BITS: /* 1 */
|
||||
{
|
||||
ti = proto_tree_add_item(tree, hf_bt_utp_extension, tvb, offset, -1, FALSE);
|
||||
ext_tree = proto_item_add_subtree(ti, ett_bt_utp_extension);
|
||||
|
||||
proto_tree_add_item(ext_tree, hf_bt_utp_next_extension_type, tvb, offset, 1, FALSE);
|
||||
extension_type = tvb_get_guint8(tvb, offset);
|
||||
offset += 1;
|
||||
|
||||
proto_tree_add_item(ext_tree, hf_bt_utp_extension_len, tvb, offset, 1, FALSE);
|
||||
extension_length = tvb_get_guint8(tvb, offset);
|
||||
proto_item_append_text(ti, " Extension Bits, Len=%d", extension_length);
|
||||
offset += 1;
|
||||
|
||||
proto_tree_add_item(ext_tree, hf_bt_utp_extension_bitmask, tvb, offset, extension_length, FALSE);
|
||||
offset += extension_length;
|
||||
proto_item_set_len(ti, 1 + 1 + extension_length);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
ti = proto_tree_add_item(tree, hf_bt_utp_extension, tvb, offset, -1, FALSE);
|
||||
ext_tree = proto_item_add_subtree(ti, ett_bt_utp_extension);
|
||||
|
||||
proto_tree_add_item(ext_tree, hf_bt_utp_next_extension_type, tvb, offset, 1, FALSE);
|
||||
extension_type = tvb_get_guint8(tvb, offset);
|
||||
offset += 1;
|
||||
|
||||
proto_tree_add_item(ext_tree, hf_bt_utp_extension_len, tvb, offset, 1, FALSE);
|
||||
extension_length = tvb_get_guint8(tvb, offset);
|
||||
proto_item_append_text(ti, " Unknown, Len=%d", extension_length);
|
||||
offset += 1;
|
||||
|
||||
proto_tree_add_item(ext_tree, hf_bt_utp_extension_unknown, tvb, offset, extension_length, FALSE);
|
||||
offset += extension_length;
|
||||
proto_item_set_len(ti, 1 + 1 + extension_length);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return offset;
|
||||
}
|
||||
|
||||
static int
|
||||
dissect_bt_utp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
||||
{
|
||||
proto_item *ti;
|
||||
proto_tree *sub_tree;
|
||||
int decoded_length = 0;
|
||||
/* set the protocol column */
|
||||
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BT-uTP");
|
||||
/* set the info column */
|
||||
col_clear(pinfo->cinfo,COL_INFO);
|
||||
|
||||
col_set_str( pinfo->cinfo, COL_INFO, "uTorrent Transport Protocol" );
|
||||
|
||||
if(tree)
|
||||
{
|
||||
ti = proto_tree_add_item(tree, proto_bt_utp, tvb, 0, -1, FALSE);
|
||||
sub_tree = proto_item_add_subtree(ti, ett_bt_utp);
|
||||
decoded_length = dissect_utp_header(tvb, sub_tree);
|
||||
}
|
||||
return decoded_length;
|
||||
}
|
||||
|
||||
void
|
||||
proto_register_bt_utp(void)
|
||||
{
|
||||
static hf_register_info hf[] = {
|
||||
{ &hf_bt_utp_ver,
|
||||
{ "Version", "bt-utp.ver",
|
||||
FT_UINT8, BASE_DEC, NULL, 0x0F,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_type,
|
||||
{ "Type", "bt-utp.type",
|
||||
FT_UINT8, BASE_DEC, VALS(bt_utp_type_vals), 0xF0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_extension,
|
||||
{ "Extension", "bt-utp.extension",
|
||||
FT_NONE, BASE_NONE, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_next_extension_type,
|
||||
{ "Next Extension Type", "bt-utp.next_extension_type",
|
||||
FT_UINT8, BASE_DEC, VALS(bt_utp_extension_type_vals), 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_extension_len,
|
||||
{ "Extension Length", "bt-utp.extension_len",
|
||||
FT_UINT8, BASE_DEC, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_extension_bitmask,
|
||||
{ "Extension Bitmask", "bt-utp.extension_bitmask",
|
||||
FT_BYTES, BASE_NONE, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_extension_unknown,
|
||||
{ "Extension Unknown", "bt-utp.extension_unknown",
|
||||
FT_BYTES, BASE_NONE, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_connection_id,
|
||||
{ "Connection ID", "bt-utp.connection_id",
|
||||
FT_UINT16, BASE_DEC, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_timestamp_ms,
|
||||
{ "Timestamp Microseconds", "bt-utp.timestamp_ms",
|
||||
FT_UINT32, BASE_DEC, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_timestamp_diff_ms,
|
||||
{ "Timestamp Difference Microseconds", "bt-utp.timestamp_diff_ms",
|
||||
FT_UINT32, BASE_DEC, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_wnd_size,
|
||||
{ "Windows Size", "bt-utp.wnd_size",
|
||||
FT_UINT32, BASE_DEC, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_seq_nr,
|
||||
{ "Sequence NR", "bt-utp.seq_nr",
|
||||
FT_UINT16, BASE_DEC, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
{ &hf_bt_utp_ack_nr,
|
||||
{ "ACK NR", "bt-utp.ack_nr",
|
||||
FT_UINT16, BASE_DEC, NULL, 0x0,
|
||||
NULL, HFILL }
|
||||
},
|
||||
};
|
||||
|
||||
/* Setup protocol subtree array */
|
||||
static gint *ett[] = { &ett_bt_utp, &ett_bt_utp_extension };
|
||||
|
||||
module_t *bt_utp_module;
|
||||
|
||||
/* Register protocol */
|
||||
proto_bt_utp = proto_register_protocol (
|
||||
"uTorrent Transport Protocol", /* name */
|
||||
"BT-uTP", /* short name */
|
||||
"bt-utp" /* abbrev */
|
||||
);
|
||||
|
||||
proto_register_field_array(proto_bt_utp, hf, array_length(hf));
|
||||
proto_register_subtree_array(ett, array_length(ett));
|
||||
new_register_dissector("bt-utp", dissect_bt_utp, proto_bt_utp);
|
||||
|
||||
/* Register our configuration options */
|
||||
bt_utp_module = prefs_register_protocol(proto_bt_utp, proto_reg_handoff_bt_utp);
|
||||
|
||||
prefs_register_uint_preference(bt_utp_module, "udp_port",
|
||||
"uTorrent Transport Protocol UDP port",
|
||||
"Set the UDP port for uTorrent Transport Protocol.",
|
||||
10, &global_bt_utp_udp_port);
|
||||
}
|
||||
|
||||
void
|
||||
proto_reg_handoff_bt_utp(void)
|
||||
{
|
||||
static gboolean bt_utp_prefs_initialized = FALSE;
|
||||
static dissector_handle_t bt_utp_handle;
|
||||
static guint bt_utp_udp_port;
|
||||
|
||||
if (!bt_utp_prefs_initialized)
|
||||
{
|
||||
bt_utp_handle = new_create_dissector_handle(dissect_bt_utp, proto_bt_utp);
|
||||
bt_utp_prefs_initialized = TRUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
dissector_delete_uint("udp.port", bt_utp_udp_port, bt_utp_handle);
|
||||
}
|
||||
|
||||
/* Set our port number for future use */
|
||||
bt_utp_udp_port = global_bt_utp_udp_port;
|
||||
dissector_add_uint("udp.port", global_bt_utp_udp_port, bt_utp_handle);
|
||||
}
|
||||
/*
|
||||
* Editor modelines
|
||||
*
|
||||
* Local Variables:
|
||||
* c-basic-offset: 2
|
||||
* tab-width: 8
|
||||
* indent-tabs-mode: nil
|
||||
* End:
|
||||
*
|
||||
* ex: set shiftwidth=2 tabstop=8 expandtab
|
||||
* :indentSize=2:tabSize=8:noTabs=true:
|
||||
*/
|
||||
Loading…
Reference in New Issue