From metatech:
New dissector for RTMP(T) protocol via bug #2078 svn path=/trunk/; revision=23902
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AUTHORS
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AUTHORS
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@ -2136,6 +2136,8 @@ metatech <metatech [AT] flashmail.com> {
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IBM MQ Programmable Command Formats protocol support
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Initial BEA Tuxedo protocol support
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Distributed Relational Database Architecture protocol support
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Borland StarTeam protocol support
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Adobe Real Time Messaging Protocol support
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}
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Brian Wheeler <Brian.Wheeler [AT] arrisi.com> {
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@ -642,6 +642,7 @@ CLEAN_DISSECTOR_SRC = \
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packet-rsvp.c \
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packet-rsync.c \
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packet-rtcp.c \
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packet-rtmpt.c \
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packet-rtp-events.c \
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packet-rtp.c \
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packet-rtps.c \
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@ -0,0 +1,517 @@
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/* packet-rtmpt.c
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* Routines for Real Time Messaging Protocol packet dissection
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*
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* metatech <metatech@flashmail.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 1998 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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/* This dissector is called RTMPT to avoid a conflict with
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* the other RTMP protocol (Routing Table Maintenance Protocol) implemented in packet-atalk.c
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* (RTMPT normally stands for RTMP-Tunnel via http)
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*
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* RTMP in a nutshell
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*
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* The protocol has very little "magic words" to facilitate detection,
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* but rather has "magic lengths".
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* This protocol has plenty of special cases and few general rules,
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* especially regarding the lengths and the structures.
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*
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* Documentation:
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* RTMP protocol description on Wiki of Red5 Open Source Flash Server
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* Default TCP port is 1935
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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 <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/emem.h>
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#include <epan/conversation.h>
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#include <epan/prefs.h>
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#include "packet-tcp.h"
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static int proto_rtmpt = -1;
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static int hf_rtmpt_header_objid = -1;
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static int hf_rtmpt_header_timestamp = -1;
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static int hf_rtmpt_header_body_size = -1;
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static int hf_rtmpt_header_function = -1;
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static int hf_rtmpt_header_source = -1;
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static int hf_rtmpt_handshake_data = -1;
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static int hf_rtmpt_amf_type = -1;
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static int hf_rtmpt_amf_number = -1;
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static int hf_rtmpt_amf_boolean = -1;
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static int hf_rtmpt_amf_string = -1;
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static gint ett_rtmpt = -1;
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static gint ett_rtmpt_header = -1;
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static gint ett_rtmpt_body = -1;
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static gint ett_rtmpt_object = -1;
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static gint ett_rtmpt_property = -1;
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static dissector_handle_t rtmpt_tcp_handle;
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static gboolean rtmpt_desegment = TRUE;
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#define RTMPT_MAGIC 0x03
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#define RTMPT_HANDSHAKE_OFFSET_1 1
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#define RTMPT_HANDSHAKE_OFFSET_2 1538
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#define RTMPT_HANDSHAKE_OFFSET_3 3074
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#define RTMPT_HANDSHAKE_LENGTH_1 1537
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#define RTMPT_HANDSHAKE_LENGTH_2 3073
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#define RTMPT_HANDSHAKE_LENGTH_3 1536
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#define RTMPT_INVOKE_CHUNK_SIZE 128
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#define RTMPT_AUDIO_CHUNK_SIZE 128
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#define RTMPT_VIDEO_CHUNK_SIZE 1024
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#define RTMPT_MAX_PACKET_SIZE 16384
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#define RTMPT_TYPE_NUMBER 0x00
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#define RTMPT_TYPE_BOOLEAN 0x01
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#define RTMPT_TYPE_STRING 0x02
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#define RTMPT_TYPE_OBJECT 0x03
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#define RTMPT_TYPE_MOVIECLIP 0x04
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#define RTMPT_TYPE_NULL 0x05
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#define RTMPT_TYPE_UNDEFINED 0x06
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#define RTMPT_TYPE_REFERENCE 0x07
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#define RTMPT_TYPE_MIXED_ARRAY 0x08
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#define RTMPT_TYPE_END_OF_OBJECT 0x09
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#define RTMPT_TYPE_ARRAY 0x0A
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#define RTMPT_TYPE_DATE 0x0B
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#define RTMPT_TYPE_LONG_STRING 0x0C
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#define RTMPT_TYPE_UNSUPPORTED 0x0D
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#define RTMPT_TYPE_RECORDSET 0x0E
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#define RTMPT_TYPE_XML 0x0F
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#define RTMPT_TYPE_CLASS_OBJECT 0x10
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#define RTMPT_TYPE_AMF3_OBJECT 0x11
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#define RTMPT_TEXT_RTMP_HEADER "RTMP Header"
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#define RTMPT_TEXT_RTMP_BODY "RTMP Body"
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#define RTMPT_TEXT_AMF_OBJECT "AMF Object"
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#define RTMPT_TEXT_AMF_PROPERTY "AMF Object Property"
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#define RTMPT_TYPE_CHUNK_SIZE 0x01
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#define RTMPT_TYPE_BYTES_READ 0x03
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#define RTMPT_TYPE_PING 0x04
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#define RTMPT_TYPE_SERVER_BANDWIDTH 0x05
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#define RTMPT_TYPE_CLIENT_BANDWIDTH 0x06
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#define RTMPT_TYPE_AUDIO_DATA 0x08
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#define RTMPT_TYPE_VIDEO_DATA 0x09
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#define RTMPT_TYPE_FLEX_STREAM_SEND 0x0F
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#define RTMPT_TYPE_FLEX_SHARED_OBJECT 0x10
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#define RTMPT_TYPE_FLEX_MESSAGE 0x11
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#define RTMPT_TYPE_NOTIFY 0x12
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#define RTMPT_TYPE_SHARED_OBJECT 0x13
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#define RTMPT_TYPE_INVOKE 0x14
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#define RTMPT_TYPE_HANDSHAKE_1 0xFA
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#define RTMPT_TYPE_HANDSHAKE_2 0xFB
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#define RTMPT_TYPE_HANDSHAKE_3 0xFC
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static const value_string rtmpt_opcode_vals[] = {
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{ RTMPT_TYPE_CHUNK_SIZE, "Chunk size" },
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{ RTMPT_TYPE_BYTES_READ, "Bytes Read" },
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{ RTMPT_TYPE_PING, "Ping" },
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{ RTMPT_TYPE_SERVER_BANDWIDTH, "Server BW" },
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{ RTMPT_TYPE_CLIENT_BANDWIDTH, "Client BW" },
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{ RTMPT_TYPE_AUDIO_DATA, "Audio Data" },
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{ RTMPT_TYPE_VIDEO_DATA, "Video Data" },
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{ RTMPT_TYPE_FLEX_STREAM_SEND, "Flex Stream" },
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{ RTMPT_TYPE_FLEX_SHARED_OBJECT, "Flex Shared Object" },
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{ RTMPT_TYPE_FLEX_MESSAGE, "Flex Message" },
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{ RTMPT_TYPE_NOTIFY, "Notify" },
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{ RTMPT_TYPE_SHARED_OBJECT, "Shared Object" },
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{ RTMPT_TYPE_INVOKE, "Invoke" },
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{ RTMPT_TYPE_HANDSHAKE_1, "Handshake part 1" },
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{ RTMPT_TYPE_HANDSHAKE_2, "Handshake part 2" },
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{ RTMPT_TYPE_HANDSHAKE_3, "Handshake part 3" },
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{ 0, NULL }
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};
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static const value_string rtmpt_type_vals[] = {
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{ RTMPT_TYPE_NUMBER, "Number" },
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{ RTMPT_TYPE_BOOLEAN, "Boolean" },
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{ RTMPT_TYPE_STRING, "String" },
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{ RTMPT_TYPE_OBJECT, "Object" },
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{ RTMPT_TYPE_MOVIECLIP, "Movie clip" },
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{ RTMPT_TYPE_NULL, "Null" },
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{ RTMPT_TYPE_UNDEFINED, "Undefined" },
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{ RTMPT_TYPE_REFERENCE, "Reference" },
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{ RTMPT_TYPE_MIXED_ARRAY, "Mixed array" },
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{ RTMPT_TYPE_END_OF_OBJECT, "End of object" },
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{ RTMPT_TYPE_ARRAY, "Array" },
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{ RTMPT_TYPE_LONG_STRING, "Long string" },
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{ RTMPT_TYPE_UNSUPPORTED, "Unsupported" },
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{ RTMPT_TYPE_RECORDSET, "Record set" },
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{ RTMPT_TYPE_XML, "XML" },
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{ RTMPT_TYPE_CLASS_OBJECT, "Class object" },
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{ RTMPT_TYPE_AMF3_OBJECT, "AMF3 object" },
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{ 0, NULL }
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};
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static gint rtmpt_header_length_from_type(gint iHeaderType)
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{
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gint iHeaderLength = 0;
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switch (iHeaderType) {
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case 0: iHeaderLength = 12; break;
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case 1: iHeaderLength = 8; break;
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case 2: iHeaderLength = 4; break;
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case 3: iHeaderLength = 1; break;
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case 4: iHeaderLength = 1; break; /* Handshake */
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}
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return iHeaderLength;
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}
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static void
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dissect_rtmpt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_tree *rtmpt_tree = NULL;
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proto_tree *rtmptroot_tree = NULL;
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proto_item *ti = NULL;
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gint offset = 0;
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struct tcpinfo* tcpinfo = pinfo->private_data;
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static gint iPreviousFrameNumber = -1;
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guint16 iCommand = -1;
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guint16 iLength = 1;
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guint16 iHeaderType = 4;
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guint16 iHeaderLength;
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guint8 iID;
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if (check_col(pinfo->cinfo, COL_PROTOCOL)) col_set_str(pinfo->cinfo, COL_PROTOCOL, "RTMP");
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if (check_col(pinfo->cinfo, COL_INFO))
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{
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/* This is a trick to know whether this is the first PDU in this packet or not */
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if (iPreviousFrameNumber != (gint) pinfo->fd->num)
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col_clear(pinfo->cinfo, COL_INFO);
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else
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col_append_str(pinfo->cinfo, COL_INFO, " | ");
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}
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iPreviousFrameNumber = pinfo->fd->num;
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if (tvb_length_remaining(tvb, offset) >= 12)
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{
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if (tcpinfo->lastackseq == RTMPT_HANDSHAKE_OFFSET_1 && tcpinfo->seq == RTMPT_HANDSHAKE_OFFSET_1) iCommand = RTMPT_TYPE_HANDSHAKE_1;
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else if (tcpinfo->lastackseq == RTMPT_HANDSHAKE_OFFSET_2 && tcpinfo->seq == RTMPT_HANDSHAKE_OFFSET_1) iCommand = RTMPT_TYPE_HANDSHAKE_2;
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else if (tcpinfo->lastackseq == RTMPT_HANDSHAKE_OFFSET_3 && tcpinfo->seq == RTMPT_HANDSHAKE_OFFSET_2
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&& tvb_length(tvb) == RTMPT_HANDSHAKE_LENGTH_3) iCommand = RTMPT_TYPE_HANDSHAKE_3;
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else
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{
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iID = tvb_get_guint8(tvb, offset + 0);
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iHeaderType = iID >> 6;
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if (iHeaderType <= 2) iLength = tvb_get_ntoh24(tvb, offset + 4);
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if (iHeaderType <= 1) iCommand = tvb_get_guint8(tvb, offset + 7);
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if (iHeaderType >= 2) iCommand = RTMPT_TYPE_AUDIO_DATA;
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}
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iHeaderLength = rtmpt_header_length_from_type(iHeaderType);
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if (check_col(pinfo->cinfo, COL_INFO))
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{
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col_append_fstr(pinfo->cinfo, COL_INFO, "%s", val_to_str(iCommand, rtmpt_opcode_vals, "Unknown (0x%01x)"));
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}
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if (tree)
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{
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gint iChunkSize = RTMPT_INVOKE_CHUNK_SIZE;
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ti = proto_tree_add_item(tree, proto_rtmpt, tvb, offset, -1, FALSE);
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proto_item_append_text(ti, " (%s)", val_to_str(iCommand, rtmpt_opcode_vals, "Unknown (0x%01x)"));
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rtmptroot_tree = proto_item_add_subtree(ti, ett_rtmpt);
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ti = proto_tree_add_text(rtmptroot_tree, tvb, offset, iHeaderLength, RTMPT_TEXT_RTMP_HEADER);
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proto_item_append_text(ti, " (%s)", val_to_str(iCommand, rtmpt_opcode_vals, "Unknown (0x%01x)"));
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rtmpt_tree = proto_item_add_subtree(ti, ett_rtmpt_header);
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if (iHeaderType <= 3) proto_tree_add_item(rtmpt_tree, hf_rtmpt_header_objid, tvb, offset + 0, 1, FALSE);
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if (iHeaderType <= 2) proto_tree_add_item(rtmpt_tree, hf_rtmpt_header_timestamp, tvb, offset + 1, 3, FALSE);
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if (iHeaderType <= 1) proto_tree_add_item(rtmpt_tree, hf_rtmpt_header_body_size, tvb, offset + 4, 3, FALSE);
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if (iHeaderType <= 1) proto_tree_add_item(rtmpt_tree, hf_rtmpt_header_function, tvb, offset + 7, 1, FALSE);
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if (iHeaderType <= 0) proto_tree_add_item(rtmpt_tree, hf_rtmpt_header_source, tvb, offset + 8, 4, TRUE);
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if (iCommand == RTMPT_TYPE_HANDSHAKE_1)
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{
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proto_tree_add_item(rtmpt_tree, hf_rtmpt_handshake_data, tvb, 1, 1536, FALSE);
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}
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else if (iCommand == RTMPT_TYPE_HANDSHAKE_2)
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{
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proto_tree_add_item(rtmpt_tree, hf_rtmpt_handshake_data, tvb, 1, 1536, FALSE);
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proto_tree_add_item(rtmpt_tree, hf_rtmpt_handshake_data, tvb, 1537, 1536, FALSE);
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}
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else if (iCommand == RTMPT_TYPE_HANDSHAKE_3)
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{
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proto_tree_add_item(rtmpt_tree, hf_rtmpt_handshake_data, tvb, 0, -1, FALSE);
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}
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switch (iCommand) {
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case RTMPT_TYPE_INVOKE: iChunkSize = RTMPT_INVOKE_CHUNK_SIZE; break;
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case RTMPT_TYPE_AUDIO_DATA: iChunkSize = RTMPT_AUDIO_CHUNK_SIZE; break;
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case RTMPT_TYPE_VIDEO_DATA: iChunkSize = RTMPT_VIDEO_CHUNK_SIZE; break;
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}
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if (tvb_length_remaining(tvb, offset) > iChunkSize && (iCommand == RTMPT_TYPE_VIDEO_DATA || iCommand == RTMPT_TYPE_INVOKE)
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&& (tvb_get_guint8(tvb, offset + rtmpt_header_length_from_type(iHeaderType) + iChunkSize) >> 6) == 3)
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{
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gint iChunk;
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gint nbChunks;
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tvbuff_t* dechunked_tvb = tvb_new_composite();
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offset = iHeaderLength;
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nbChunks = tvb_length_remaining(tvb, iHeaderLength) / iChunkSize;
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for (iChunk = 0; iChunk < nbChunks + 1; iChunk++)
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{
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tvbuff_t* chunkBuffer;
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if (tvb_length_remaining(tvb, offset) < iChunkSize) iChunkSize = tvb_length_remaining(tvb, offset);
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chunkBuffer = tvb_new_subset(tvb, offset, iChunkSize, iChunkSize);
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tvb_composite_append(dechunked_tvb, chunkBuffer);
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offset += iChunkSize + 1; /* Skip inter-chunk */
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}
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tvb_composite_finalize(dechunked_tvb);
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add_new_data_source(pinfo, dechunked_tvb, "Unchunked RTMP");
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}
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offset = iHeaderLength;
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ti = proto_tree_add_text(rtmptroot_tree, tvb, offset, -1, RTMPT_TEXT_RTMP_BODY);
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rtmpt_tree = proto_item_add_subtree(ti, ett_rtmpt_body);
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if (iCommand == RTMPT_TYPE_INVOKE || iCommand == RTMPT_TYPE_NOTIFY)
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{
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while (tvb_length_remaining(tvb, offset) > 0)
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{
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guint8 iObjType = 0;
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guint16 iStringLength = 0;
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gint iObjectLength = 0;
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proto_tree *rtmpt_tree_object = NULL;
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proto_item *ti_object = NULL;
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iObjType = tvb_get_guint8(tvb, offset + 0);
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proto_tree_add_item(rtmpt_tree, hf_rtmpt_amf_type, tvb, offset + 0, 1, FALSE);
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offset += 1;
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switch (iObjType) {
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case RTMPT_TYPE_NUMBER:
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proto_tree_add_item(rtmpt_tree, hf_rtmpt_amf_number, tvb, offset + 0, 2, FALSE);
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offset += 2;
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break;
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case RTMPT_TYPE_BOOLEAN:
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proto_tree_add_item(rtmpt_tree, hf_rtmpt_amf_boolean, tvb, offset + 0, 1, FALSE);
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offset += 1;
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break;
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case RTMPT_TYPE_STRING:
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iStringLength = tvb_get_ntohs(tvb, offset + 0);
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proto_tree_add_item(rtmpt_tree, hf_rtmpt_amf_string, tvb, offset + 2, iStringLength, FALSE);
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offset += 2 + iStringLength;
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break;
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case RTMPT_TYPE_OBJECT:
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ti_object = proto_tree_add_text(rtmpt_tree, tvb, offset, 1, RTMPT_TEXT_AMF_OBJECT);
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rtmpt_tree_object = proto_item_add_subtree(ti_object, ett_rtmpt_object);
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for (;;)
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{
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gint iPropertyLength = 0;
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proto_tree *rtmpt_tree_prop = NULL;
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if (tvb_length_remaining(tvb, offset) <= 0) break;
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iObjType = tvb_get_guint8(tvb, offset + 0);
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if (iObjType != 0x00) break;
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if (tvb_get_guint8(tvb, offset + 1) == 0 && tvb_get_guint8(tvb, offset + 2) == RTMPT_TYPE_END_OF_OBJECT)
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{
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/* End of objet marker */
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offset += 2;
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break;
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}
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ti = proto_tree_add_text(rtmpt_tree_object, tvb, offset, 1, RTMPT_TEXT_AMF_PROPERTY);
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rtmpt_tree_prop = proto_item_add_subtree(ti, ett_rtmpt_property);
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/* Property name */
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iStringLength = tvb_get_guint8(tvb, offset + 1);
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proto_tree_add_item(rtmpt_tree_prop, hf_rtmpt_amf_string, tvb, offset + 2, iStringLength, FALSE);
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offset += 2 + iStringLength;
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iPropertyLength = 2 + iStringLength;
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/* Property value */
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iObjType = tvb_get_guint8(tvb, offset + 0);
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switch (iObjType) {
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case RTMPT_TYPE_NUMBER:
|
||||
proto_tree_add_item(rtmpt_tree_prop, hf_rtmpt_amf_number, tvb, offset + 1, 2, FALSE);
|
||||
offset += 3;
|
||||
iPropertyLength += 3;
|
||||
break;
|
||||
case RTMPT_TYPE_BOOLEAN:
|
||||
proto_tree_add_item(rtmpt_tree_prop, hf_rtmpt_amf_boolean, tvb, offset + 1, 1, FALSE);
|
||||
offset += 2;
|
||||
iPropertyLength += 2;
|
||||
break;
|
||||
case RTMPT_TYPE_STRING:
|
||||
iStringLength = tvb_get_ntohs(tvb, offset + 1);
|
||||
proto_tree_add_item(rtmpt_tree_prop, hf_rtmpt_amf_string, tvb, offset + 3, iStringLength, FALSE);
|
||||
offset += 3 + iStringLength;
|
||||
iPropertyLength += 3 + iStringLength;
|
||||
break;
|
||||
}
|
||||
proto_item_set_len(ti, iPropertyLength);
|
||||
iObjectLength += 1 + iPropertyLength;
|
||||
}
|
||||
proto_item_set_len(ti_object, iObjectLength);
|
||||
break;
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static guint
|
||||
get_rtmpt_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
|
||||
{
|
||||
guint returned = 0;
|
||||
struct tcpinfo *tcpinfo = pinfo->private_data;
|
||||
if (tcpinfo->lastackseq == RTMPT_HANDSHAKE_OFFSET_1 && tcpinfo->seq == RTMPT_HANDSHAKE_OFFSET_1) returned = RTMPT_HANDSHAKE_LENGTH_1;
|
||||
else if (tcpinfo->lastackseq == RTMPT_HANDSHAKE_OFFSET_2 && tcpinfo->seq == RTMPT_HANDSHAKE_OFFSET_1) returned = RTMPT_HANDSHAKE_LENGTH_2;
|
||||
else if (tcpinfo->lastackseq == RTMPT_HANDSHAKE_OFFSET_3 && tcpinfo->seq == RTMPT_HANDSHAKE_OFFSET_2
|
||||
&& tcpinfo->nxtseq - tcpinfo->seq - tvb_length(tvb) != RTMPT_HANDSHAKE_LENGTH_3) returned = RTMPT_HANDSHAKE_LENGTH_3;
|
||||
else
|
||||
{
|
||||
guint16 iHeaderType;
|
||||
guint8 iID;
|
||||
guint16 iCommand = -1;
|
||||
|
||||
iID = tvb_get_guint8(tvb, offset + 0);
|
||||
iHeaderType = iID >> 6;
|
||||
if (iHeaderType <= 1 && tvb_length_remaining(tvb, offset) >= 8) iCommand = tvb_get_guint8(tvb, offset + 7);
|
||||
if (iHeaderType == 0 && tvb_length_remaining(tvb, offset) >= 7) returned = 12 + tvb_get_ntoh24(tvb, offset + 4);
|
||||
if (iHeaderType == 1 && tvb_length_remaining(tvb, offset) >= 7) returned = 8 + tvb_get_ntoh24(tvb, offset + 4);
|
||||
if (iCommand == RTMPT_TYPE_VIDEO_DATA) returned += returned / RTMPT_VIDEO_CHUNK_SIZE;
|
||||
if (iCommand == RTMPT_TYPE_INVOKE || iCommand == RTMPT_TYPE_NOTIFY)
|
||||
{
|
||||
/* Educated guess whether the message is chunked or not */
|
||||
if (tvb_length_remaining(tvb, offset + rtmpt_header_length_from_type(iHeaderType)) >= RTMPT_INVOKE_CHUNK_SIZE
|
||||
&& (tvb_get_guint8(tvb, offset + rtmpt_header_length_from_type(iHeaderType) + RTMPT_INVOKE_CHUNK_SIZE) >> 6) == 3)
|
||||
returned += returned / RTMPT_INVOKE_CHUNK_SIZE;
|
||||
}
|
||||
if (iHeaderType == 2) returned = 5 + RTMPT_AUDIO_CHUNK_SIZE; /* Most probably audio */
|
||||
if (iHeaderType == 3) returned = 2 + RTMPT_AUDIO_CHUNK_SIZE; /* Most probably audio */
|
||||
}
|
||||
if (returned >= RTMPT_MAX_PACKET_SIZE) returned = 0;
|
||||
return returned;
|
||||
}
|
||||
|
||||
static void
|
||||
dissect_rtmpt_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
||||
{
|
||||
tcp_dissect_pdus(tvb, pinfo, tree, rtmpt_desegment, 12, get_rtmpt_pdu_len, dissect_rtmpt);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
dissect_rtmpt_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
||||
{
|
||||
conversation_t * conversation;
|
||||
if (tvb_length(tvb) >= 12)
|
||||
{
|
||||
/* To avoid a too high rate of false positive, this heurisitics only matches the protocol
|
||||
from the first server response packet and not from the client request packets before.
|
||||
Therefore it is necessary to a "Decode as" to properly decode the first packets */
|
||||
struct tcpinfo *tcpinfo = pinfo->private_data;
|
||||
if (tcpinfo->lastackseq == RTMPT_HANDSHAKE_OFFSET_2 && tcpinfo->seq == RTMPT_HANDSHAKE_OFFSET_1 && tvb_get_guint8(tvb, 0) == RTMPT_MAGIC)
|
||||
{
|
||||
/* Register this dissector for this conversation */
|
||||
conversation = NULL;
|
||||
conversation = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst, pinfo->ptype, pinfo->srcport, pinfo->destport, 0);
|
||||
if (conversation == NULL)
|
||||
{
|
||||
conversation = conversation_new(pinfo->fd->num, &pinfo->src, &pinfo->dst, pinfo->ptype, pinfo->srcport, pinfo->destport, 0);
|
||||
}
|
||||
conversation_set_dissector(conversation, rtmpt_tcp_handle);
|
||||
|
||||
/* Dissect the packet */
|
||||
dissect_rtmpt(tvb, pinfo, tree);
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
void
|
||||
proto_register_rtmpt(void)
|
||||
{
|
||||
static hf_register_info hf[] = {
|
||||
{ &hf_rtmpt_header_objid,
|
||||
{ "ObjectID", "rtmpt.header.objid", FT_UINT8, BASE_DEC, NULL, 0x0, "RTMPT Header object ID", HFILL }},
|
||||
|
||||
{ &hf_rtmpt_header_timestamp,
|
||||
{ "Timestamp", "rtmpt.header.timestamp", FT_UINT24, BASE_DEC, NULL, 0x0, "RTMPT Header timestamp", HFILL }},
|
||||
|
||||
{ &hf_rtmpt_header_body_size,
|
||||
{ "Body size", "rtmpt.header.bodysize", FT_UINT24, BASE_DEC, NULL, 0x0, "RTMPT Header body size", HFILL }},
|
||||
|
||||
{ &hf_rtmpt_header_function,
|
||||
{ "Function call", "rtmpt.header.function", FT_UINT8, BASE_HEX, VALS(rtmpt_opcode_vals), 0x0, "RTMPT Header function call", HFILL }},
|
||||
|
||||
{ &hf_rtmpt_header_source,
|
||||
{ "Caller source", "rtmpt.header.caller", FT_UINT32, BASE_DEC, NULL, 0x0, "RTMPT Header caller source", HFILL }},
|
||||
|
||||
{ &hf_rtmpt_handshake_data,
|
||||
{ "Handshake data", "rtmpt.header.handshake", FT_BYTES, BASE_HEX, NULL, 0x0, "RTMPT Header handshake data", HFILL }},
|
||||
|
||||
{ &hf_rtmpt_amf_type,
|
||||
{ "AMF type", "rtmpt.amf.type", FT_UINT8, BASE_DEC, VALS(rtmpt_type_vals), 0x0, "RTMPT AMF type", HFILL }},
|
||||
|
||||
{ &hf_rtmpt_amf_number,
|
||||
{ "AMF number", "rtmpt.amf.number", FT_UINT16, BASE_DEC, NULL, 0x0, "RTMPT AMF number", HFILL }},
|
||||
|
||||
{ &hf_rtmpt_amf_boolean,
|
||||
{ "AMF boolean", "rtmpt.amf.boolean", FT_BOOLEAN, BASE_DEC, NULL, 0x0, "RTMPT AMF boolean", HFILL }},
|
||||
|
||||
{ &hf_rtmpt_amf_string,
|
||||
{ "AMF string", "rtmpt.amf.string", FT_STRINGZ, BASE_DEC, NULL, 0x0, "RTMPT AMF string", HFILL }}
|
||||
|
||||
|
||||
};
|
||||
static gint *ett[] = {
|
||||
&ett_rtmpt,
|
||||
&ett_rtmpt_header,
|
||||
&ett_rtmpt_body,
|
||||
&ett_rtmpt_object,
|
||||
&ett_rtmpt_property
|
||||
};
|
||||
|
||||
module_t *rtmpt_module;
|
||||
|
||||
proto_rtmpt = proto_register_protocol("Real Time Messaging Protocol", "RTMPT", "rtmpt");
|
||||
proto_register_field_array(proto_rtmpt, hf, array_length(hf));
|
||||
proto_register_subtree_array(ett, array_length(ett));
|
||||
|
||||
rtmpt_module = prefs_register_protocol(proto_rtmpt, NULL);
|
||||
prefs_register_bool_preference(rtmpt_module, "desegment",
|
||||
"Reassemble RTMPT messages spanning multiple TCP segments",
|
||||
"Whether the RTMPT dissector should reassemble messages spanning multiple TCP segments."
|
||||
" To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
|
||||
&rtmpt_desegment);
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
proto_reg_handoff_rtmpt(void)
|
||||
{
|
||||
heur_dissector_add("tcp", dissect_rtmpt_heur, proto_rtmpt);
|
||||
rtmpt_tcp_handle = create_dissector_handle(dissect_rtmpt_tcp, proto_rtmpt);
|
||||
dissector_add_handle("tcp.port", rtmpt_tcp_handle);
|
||||
}
|
|
@ -2836,6 +2836,7 @@ dissect_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|||
after the segment. */
|
||||
tcpinfo.seq = tcph->th_seq;
|
||||
tcpinfo.nxtseq = nxtseq;
|
||||
tcpinfo.lastackseq = tcph->th_ack;
|
||||
|
||||
/* Assume we'll pass un-reassembled data to subdissectors. */
|
||||
tcpinfo.is_reassembled = FALSE;
|
||||
|
|
|
@ -63,6 +63,7 @@ struct tcpheader {
|
|||
struct tcpinfo {
|
||||
guint32 seq; /* Sequence number of first byte in the data */
|
||||
guint32 nxtseq; /* Sequence number of first byte after data */
|
||||
guint32 lastackseq; /* Sequence number of last ack */
|
||||
gboolean is_reassembled; /* This is reassembled data. */
|
||||
gboolean urgent; /* TRUE if "urgent_pointer" is valid */
|
||||
guint16 urgent_pointer; /* Urgent pointer value for the current packet. */
|
||||
|
|
Loading…
Reference in New Issue