From Peter Lemenkov via https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8326

Dissector for the Sippy RTPproxy controlling protocol. RTPproxy is a well-known
(among SIP-engineers) application and it operates using its own simple
text-based protocol. There are several competing products but all of them
implements it (sometimes slightly extending).

svn path=/trunk/; revision=51417

2 files changed, 809 insertions, 0 deletions

diff --git a/epan/dissectors/Makefile.common b/epan/dissectors/Makefile.common
index c5132efd87..514a4a49d5 100644
--- a/epan/dissectors/Makefile.common
+++ b/epan/dissectors/Makefile.common
@@ -1016,6 +1016,7 @@ DISSECTOR_SRC = \
 	packet-rtp-events.c	\
 	packet-rtp-midi.c	\
 	packet-rtp.c		\
+	packet-rtpproxy.c	\
 	packet-rtps.c		\
 	packet-rtsp.c		\
 	packet-rudp.c		\
diff --git a/epan/dissectors/packet-rtpproxy.c b/epan/dissectors/packet-rtpproxy.c
new file mode 100644
index 0000000000..4641e26239
--- /dev/null
+++ b/epan/dissectors/packet-rtpproxy.c
@@ -0,0 +1,808 @@
+/* packet-rtpproxy.c
+ * RTPproxy command protocol dissector
+ * Copyright 2013, Peter Lemenkov <lemenkov@gmail.com>
+ *
+ * This dissector tries to dissect rtpproxy control protocol. Please visit this
+ * link for brief details on the command format:
+ *
+ * http://www.rtpproxy.org/wiki/RTPproxy/Protocol
+ *
+ * $Id$
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include <epan/prefs.h>
+
+static int proto_rtpproxy = -1;
+
+static int hf_rtpproxy_cookie = -1;
+static int hf_rtpproxy_error = -1;
+static int hf_rtpproxy_status = -1;
+static int hf_rtpproxy_ok = -1;
+static int hf_rtpproxy_ipv4 = -1;
+static int hf_rtpproxy_ipv6 = -1;
+static int hf_rtpproxy_port = -1;
+static int hf_rtpproxy_lf = -1;
+static int hf_rtpproxy_request = -1;
+static int hf_rtpproxy_command = -1;
+static int hf_rtpproxy_command_parameters = -1;
+static int hf_rtpproxy_callid = -1;
+static int hf_rtpproxy_copy_target = -1;
+static int hf_rtpproxy_playback_filename = -1;
+static int hf_rtpproxy_playback_codec = -1;
+static int hf_rtpproxy_notify = -1;
+static int hf_rtpproxy_notify_ipv4 = -1;
+static int hf_rtpproxy_notify_port = -1;
+static int hf_rtpproxy_notify_tag = -1;
+static int hf_rtpproxy_tag = -1;
+static int hf_rtpproxy_mediaid = -1;
+static int hf_rtpproxy_reply = -1;
+static int hf_rtpproxy_version_request = -1;
+static int hf_rtpproxy_version_supported = -1;
+
+static const value_string commandtypenames[] = {
+	{ 'V', "Handshake/Ping" },
+	{ 'v', "Handshake/Ping" },
+	{ 'U', "Offer/Update" },
+	{ 'u', "Offer/Update" },
+	{ 'L', "Answer/Lookup" },
+	{ 'l', "Answer/Lookup" },
+	{ 'I', "Information"},
+	{ 'i', "Information"},
+	{ 'X', "Close all active sessions"},
+	{ 'x', "Close all active sessions"},
+	{ 'D', "Delete an active session (Bye/Cancel/Error)"},
+	{ 'd', "Delete an active session (Bye/Cancel/Error)"},
+	{ 'P', "Start playback (music-on-hold)"},
+	{ 'p', "Start playback (music-on-hold)"},
+	{ 'S', "Stop playback (music-on-hold)"},
+	{ 's', "Stop playback (music-on-hold)"},
+	{ 'R', "Start recording"},
+	{ 'r', "Start recording"},
+	{ 'C', "Copy stream"},
+	{ 'c', "Copy stream"},
+	{ 'Q', "Query info about a session"},
+	{ 'q', "Query info about a session"},
+	{ 0, NULL }
+};
+
+static const value_string oktypenames[] = {
+	{ '0', "Ok"},
+	{ '1', "Version Supported"},
+	{ 0, NULL }
+};
+
+static const value_string errortypenames[] = {
+	{ '1', "Syntax" },	/* E1 */
+	{ '7', "Software" },	/* E7 */
+	{ '8', "Not Found" },	/* E8 */
+	{ 0, NULL }
+};
+
+static const value_string flowcontroltypenames[] = {
+	{ '\n', "Yes"},
+	{ 0, NULL }
+};
+
+static gint ett_rtpproxy = -1;
+
+static gint ett_rtpproxy_request = -1;
+static gint ett_rtpproxy_command = -1;
+static gint ett_rtpproxy_tag = -1;
+static gint ett_rtpproxy_notify = -1;
+
+static gint ett_rtpproxy_reply = -1;
+
+static guint rtpproxy_tcp_port = 22222;
+static guint rtpproxy_udp_port = 22222;
+
+void proto_reg_handoff_rtpproxy(void);
+
+gint
+rtpptoxy_add_tag(proto_tree *rtpproxy_tree, tvbuff_t *tvb, guint begin, guint realsize)
+{
+	proto_item *ti = NULL;
+	proto_tree *another_tree = NULL;
+	gint new_offset;
+	guint end;
+
+	new_offset = tvb_find_guint8(tvb, begin, -1, ' ');
+	if(new_offset < 0)
+		end = realsize; /* No more parameters */
+	else
+		end = new_offset;
+
+	/* SER/OpenSER/OpenSIPS/Kamailio adds Media-ID right after the Tag
+	 * separated by a semicolon
+	 */
+	new_offset = tvb_find_guint8(tvb, begin, end, ';');
+	if(new_offset == -1){
+		ti = proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_tag, tvb, begin, end - begin, ENC_ASCII | ENC_NA);
+		another_tree = proto_item_add_subtree(ti, ett_rtpproxy_tag);
+		ti = proto_tree_add_item(another_tree, hf_rtpproxy_mediaid, tvb, new_offset+1, 0, ENC_ASCII | ENC_NA);
+		proto_item_set_text(ti, "Media-ID: <skipped>");
+	}
+	else{
+		ti = proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_tag, tvb, begin, new_offset - begin, ENC_ASCII | ENC_NA);
+		another_tree = proto_item_add_subtree(ti, ett_rtpproxy_tag);
+		proto_tree_add_item(another_tree, hf_rtpproxy_mediaid, tvb, new_offset+1, end - (new_offset+1), ENC_ASCII | ENC_NA);
+	}
+	return (end == realsize ? -1 : (gint)end);
+}
+
+static void
+dissect_rtpproxy(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+	gboolean has_lf = FALSE;
+	guint offset = 0;
+	gint new_offset = 0;
+	guint tmp;
+	guint realsize = 0;
+	guint8* rawstr;
+	proto_item *ti;
+	proto_tree *rtpproxy_tree;
+
+	/* Clear out stuff in the info column - we''l set it later */
+	col_clear(pinfo->cinfo, COL_INFO);
+
+	ti = proto_tree_add_item(tree, proto_rtpproxy, tvb, 0, -1, ENC_NA);
+	rtpproxy_tree = proto_item_add_subtree(ti, ett_rtpproxy);
+
+	/* Extract Cookie */
+	offset = tvb_find_guint8(tvb, offset, -1, ' ');
+	ti = proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_cookie, tvb, 0, offset, ENC_ASCII | ENC_NA);
+
+	/* Skip whitespace */
+	offset = tvb_skip_wsp(tvb, offset+1, -1);
+
+	/* Calculate size to prevent recalculation in the future */
+	realsize = tvb_reported_length(tvb);
+
+	/* Check for LF (required for TCP connection, optional for UDP) */
+	if (tvb_get_guint8(tvb, realsize - 1) == '\n'){
+		col_set_str(pinfo->cinfo, COL_PROTOCOL, "RTPproxy");
+		/* Don't count trailing LF */
+		realsize -= 1;
+		has_lf = TRUE;
+	}
+	else
+		col_set_str(pinfo->cinfo, COL_PROTOCOL, "RTPproxy (no LF)");
+
+	/* Get payload string */
+	rawstr = tvb_get_ephemeral_string(tvb, offset, realsize - offset);
+
+	/* Extract command */
+	tmp = g_ascii_tolower(tvb_get_guint8(tvb, offset));
+	switch (tmp)
+	{
+		case 's':
+			/* A specific case - long statistics answer */
+			/* %COOKIE% sessions created %NUM0% active sessions: %NUM1% */
+			if ('e' == tvb_get_guint8(tvb, offset+1)){
+				col_add_fstr(pinfo->cinfo, COL_INFO, "Reply: %s", rawstr);
+				ti = proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_reply, tvb, offset, -1, ENC_NA);
+
+				rtpproxy_tree = proto_item_add_subtree(ti, ett_rtpproxy_reply);
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_status, tvb, offset, realsize - offset, ENC_NA);
+				break;
+			}
+		case 'i':
+		case 'x':
+		case 'u':
+		case 'l':
+		case 'd':
+		case 'p':
+		case 'v':
+		case 'r':
+		case 'c':
+		case 'q':
+			col_add_fstr(pinfo->cinfo, COL_INFO, "Request: %s", rawstr);
+			ti = proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_request, tvb, offset, -1, ENC_NA);
+			rtpproxy_tree = proto_item_add_subtree(ti, ett_rtpproxy_request);
+
+			/* A specific case - version request */
+			if ((tmp == 'v') && (offset + strlen("VF YYYMMDD") + 1 == realsize)){
+				/* Skip whitespace */
+				new_offset = tvb_skip_wsp(tvb, offset + (strlen("VF") + 1), -1);
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_version_request, tvb, new_offset, strlen("YYYYMMDD"), ENC_ASCII | ENC_NA);
+				break;
+			}
+
+			/* All other commands */
+			ti = proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_command, tvb, offset, 1, ENC_NA);
+
+			/* A specific case - handshake/ping */
+			if (tmp == 'v')
+				break; /* No more parameters */
+
+			/* A specific case - close all calls */
+			if (tmp == 'x')
+				break; /* No more parameters */
+
+			/* Extract parameters */
+			/* Parameters should be right after the command and before EOL (in case of Info command) or before whitespace */
+			new_offset = (tmp == 'i' ? (gint)(realsize - 1 > offset ? offset + strlen("Ib") : offset + strlen("I")) : tvb_find_guint8(tvb, offset, -1, ' '));
+
+			if (new_offset != (gint)offset + 1){
+				rtpproxy_tree = proto_item_add_subtree(ti, ett_rtpproxy_command);
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_command_parameters, tvb, offset+1, new_offset - (offset+1), ENC_ASCII | ENC_NA);
+				rtpproxy_tree = proto_item_get_parent(ti);
+			}
+
+			/* A specific case - query information */
+			if (tmp == 'i')
+				break; /* No more parameters */
+
+			/* Skip whitespace */
+			offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+
+			/* Extract Call-ID */
+			new_offset = tvb_find_guint8(tvb, offset, -1, ' ');
+			proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_callid, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+			/* Skip whitespace */
+			offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+
+			/* Extract IP and Port in case of Offer/Answer */
+			if ((tmp == 'u') || (tmp == 'l')){
+				/* Extract IP */
+				new_offset = tvb_find_guint8(tvb, offset, -1, ' ');
+				if (tvb_find_guint8(tvb, offset, new_offset - offset, ':') == -1)
+					proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_ipv4, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+				else
+					proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_ipv6, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+				/* Skip whitespace */
+				offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+
+				/* Extract Port */
+				new_offset = tvb_find_guint8(tvb, offset, -1, ' ');
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_port, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+				/* Skip whitespace */
+				offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+			}
+
+			/* Extract Copy target */
+			if (tmp == 'c'){
+				new_offset = tvb_find_guint8(tvb, offset, -1, ' ');
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_copy_target, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+				/* Skip whitespace */
+				offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+			}
+
+			/* Extract Playback file and codecs */
+			if (tmp == 'p'){
+				/* Extract filename */
+				new_offset = tvb_find_guint8(tvb, offset, -1, ' ');
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_playback_filename, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+				/* Skip whitespace */
+				offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+
+				/* Extract codec */
+				new_offset = tvb_find_guint8(tvb, offset, -1, ' ');
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_playback_codec, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+				/* Skip whitespace */
+				offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+			}
+
+			/* Extract first tag */
+			new_offset = rtpptoxy_add_tag(rtpproxy_tree, tvb, offset, realsize);
+			if(new_offset == -1)
+				break; /* No more parameters */
+			/* Skip whitespace */
+			offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+
+			/* Extract second tag */
+			new_offset = rtpptoxy_add_tag(rtpproxy_tree, tvb, offset, realsize);
+			if(new_offset == -1)
+				break; /* No more parameters */
+			/* Skip whitespace */
+			offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+
+			/* Extract Notification address */
+			if (tmp == 'u'){
+				new_offset = tvb_find_guint8(tvb, offset, -1, ' ');
+				ti = proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_notify, tvb, offset, realsize - offset, ENC_NA);
+				proto_item_set_text(ti, "Notify");
+				rtpproxy_tree = proto_item_add_subtree(ti, ett_rtpproxy_notify);
+				if(new_offset == -1){
+					/* FIXME only IPv4 is supported */
+					new_offset = tvb_find_guint8(tvb, offset, -1, ':');
+					proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_notify_ipv4, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+					proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_notify_port, tvb, new_offset+1, realsize - (new_offset+1), ENC_ASCII | ENC_NA);
+					break; /* No more parameters */
+				}
+				if(new_offset - offset < 6){
+					/* Only port is supplied */
+					ti = proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_notify_ipv4, tvb, offset, 0, ENC_ASCII | ENC_NA);
+					proto_item_set_text(ti, "Notification IPv4: <skipped>");
+					proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_notify_port, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+				}
+				else{
+					proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_notify_ipv4, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+					proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_notify_port, tvb, new_offset+1, realsize - (new_offset+1), ENC_ASCII | ENC_NA);
+				}
+				/* Skip whitespace */
+				offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_notify_tag, tvb, offset, realsize - offset, ENC_ASCII | ENC_NA);
+			}
+			break;
+		case 'a':
+		case 'e':
+		case '0':
+		case '1':
+		case '2':
+		case '3':
+		case '4':
+		case '5':
+		case '6':
+		case '7':
+		case '8':
+		case '9':
+			if (tmp == 'e')
+				col_add_fstr(pinfo->cinfo, COL_INFO, "Error reply: %s", rawstr);
+			else
+				col_add_fstr(pinfo->cinfo, COL_INFO, "Reply: %s", rawstr);
+
+			ti = proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_reply, tvb, offset, -1, ENC_NA);
+			rtpproxy_tree = proto_item_add_subtree(ti, ett_rtpproxy_reply);
+
+			if (tmp == 'e'){
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_error, tvb, offset+1, 1, ENC_ASCII | ENC_NA);
+				break;
+			}
+
+			if (tmp == 'a'){
+				/* A specific case - short statistics answer */
+				/* %COOKIE% active sessions: %NUM1% */
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_status, tvb, offset, realsize - offset, ENC_NA);
+				break;
+			}
+			if ((tmp == '0')&& ((tvb_reported_length(tvb) == offset+1)||(tvb_reported_length(tvb) == offset+2))){
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_ok, tvb, offset, 1, ENC_ASCII | ENC_NA);
+				break;
+			}
+			if ((tmp == '1') && ((tvb_reported_length(tvb) == offset+1)||(tvb_reported_length(tvb) == offset+2))){
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_ok, tvb, offset, 1, ENC_ASCII | ENC_NA);
+				break;
+			}
+			if (tvb_reported_length(tvb) == offset+9){
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_version_supported, tvb, offset, 8, ENC_ASCII | ENC_NA);
+				break;
+			}
+
+			/* Extract Port */
+			new_offset = tvb_find_guint8(tvb, offset, -1, ' ');
+			proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_port, tvb, offset, new_offset - offset, ENC_ASCII | ENC_NA);
+			/* Skip whitespace */
+			offset = tvb_skip_wsp(tvb, new_offset+1, -1);
+
+			/* Extract IP */
+			tmp = tvb_find_line_end(tvb, offset, -1, &new_offset, FALSE);
+			if (tvb_find_guint8(tvb, offset, -1, ':') == -1)
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_ipv4, tvb, offset, tmp, ENC_ASCII | ENC_NA);
+			else
+				proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_ipv6, tvb, offset, tmp, ENC_ASCII | ENC_NA);
+			break;
+		default:
+			break;
+	}
+	if (has_lf)
+		proto_tree_add_item(rtpproxy_tree, hf_rtpproxy_lf, tvb, realsize, 1, ENC_NA);
+}
+
+void
+proto_register_rtpproxy(void)
+{
+	module_t *rtpproxy_module;
+
+	static hf_register_info hf[] = {
+		{
+			&hf_rtpproxy_cookie,
+			{
+				"Cookie",
+				"rtpproxy.cookie",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_version_request,
+			{
+				"Version Request",
+				"rtpproxy.version",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_version_supported,
+			{
+				"Version Supported",
+				"rtpproxy.version_supported",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_error,
+			{
+				"Error",
+				"rtpproxy.error",
+				FT_UINT8,
+				BASE_DEC,
+				VALS(errortypenames),
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_ok,
+			{
+				"Ok",
+				"rtpproxy.ok",
+				FT_UINT8,
+				BASE_DEC,
+				VALS(oktypenames),
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_status,
+			{
+				"Status",
+				"rtpproxy.status",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_ipv4,
+			{
+				"IPv4",
+				"rtpproxy.ipv4",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_ipv6,
+			{
+				"IPv6",
+				"rtpproxy.ipv6",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_port,
+			{
+				"Port",
+				"rtpproxy.port",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_request,
+			{
+				"Request",
+				"rtpproxy.request",
+				FT_NONE,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_command,
+			{
+				"Command",
+				"rtpproxy.command",
+				FT_UINT8,
+				BASE_DEC,
+				VALS(commandtypenames),
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_command_parameters,
+			{
+				"Command parameters",
+				"rtpproxy.command_parameters",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_copy_target,
+			{
+				"Copy target",
+				"rtpproxy.copy_target",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_playback_filename,
+			{
+				"Playback filename",
+				"rtpproxy.playback_filename",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_playback_codec,
+			{
+				"Playback codec",
+				"rtpproxy.playback_codec",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_callid,
+			{
+				"Call-ID",
+				"rtpproxy.callid",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_notify,
+			{
+				"Notify",
+				"rtpproxy.notify",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_tag,
+			{
+				"Tag",
+				"rtpproxy.tag",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_mediaid,
+			{
+				"Media-ID",
+				"rtpproxy.mediaid",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_notify_ipv4,
+			{
+				"Notification IPv4",
+				"rtpproxy.notify_ipv4",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_notify_port,
+			{
+				"Notification Port",
+				"rtpproxy.notify_port",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_notify_tag,
+			{
+				"Notification Tag",
+				"rtpproxy.notify_tag",
+				FT_STRING,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_reply,
+			{
+				"Reply",
+				"rtpproxy.reply",
+				FT_NONE,
+				BASE_NONE,
+				NULL,
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+		{
+			&hf_rtpproxy_lf,
+			{
+				"LF",
+				"rtpproxy.lf",
+				FT_UINT8,
+				BASE_DEC,
+				VALS(flowcontroltypenames),
+				0x0,
+				NULL,
+				HFILL
+			}
+		},
+	};
+
+	/* Setup protocol subtree array */
+	static gint *ett[] = {
+		&ett_rtpproxy,
+		&ett_rtpproxy_request,
+		&ett_rtpproxy_command,
+		&ett_rtpproxy_tag,
+		&ett_rtpproxy_notify,
+		&ett_rtpproxy_reply
+	};
+
+	proto_rtpproxy = proto_register_protocol (
+			"Sippy RTPproxy Protocol", /* name       */
+			"RTPproxy",      /* short name */
+			"rtpproxy"       /* abbrev     */
+			);
+
+	proto_register_field_array(proto_rtpproxy, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+
+	rtpproxy_module = prefs_register_protocol(proto_rtpproxy, proto_reg_handoff_rtpproxy);
+	prefs_register_uint_preference(rtpproxy_module, "tcp.port",
+								 "RTPproxy TCP Port", /* Title */
+								 "RTPproxy TCP Port", /* Descr */
+								 10,
+								 &rtpproxy_tcp_port);
+
+	prefs_register_uint_preference(rtpproxy_module, "udp.port",
+								 "RTPproxy UDP Port", /* Title */
+								 "RTPproxy UDP Port", /* Descr */
+								 10,
+								 &rtpproxy_udp_port);
+}
+
+void
+proto_reg_handoff_rtpproxy(void)
+{
+	static guint old_rtpproxy_tcp_port = 0;
+	static guint old_rtpproxy_udp_port = 0;
+
+	static gboolean rtpproxy_initialized = FALSE;
+
+	static dissector_handle_t rtpproxy_tcp_handle, rtpproxy_udp_handle;
+
+	if(!rtpproxy_initialized){
+		rtpproxy_tcp_handle = create_dissector_handle(dissect_rtpproxy, proto_rtpproxy);
+		rtpproxy_udp_handle = create_dissector_handle(dissect_rtpproxy, proto_rtpproxy);
+		rtpproxy_initialized = TRUE;
+	}
+
+	/* Register TCP port for dissection */
+	if(old_rtpproxy_tcp_port != 0 && old_rtpproxy_tcp_port != rtpproxy_tcp_port)
+		dissector_delete_uint("tcp.port", old_rtpproxy_tcp_port, rtpproxy_tcp_handle);
+	if(rtpproxy_tcp_port != 0 && old_rtpproxy_tcp_port != rtpproxy_tcp_port)
+		dissector_add_uint("tcp.port", rtpproxy_tcp_port, rtpproxy_tcp_handle);
+	old_rtpproxy_tcp_port = rtpproxy_tcp_port;
+
+	/* Register UDP port for dissection */
+	if(old_rtpproxy_udp_port != 0 && old_rtpproxy_udp_port != rtpproxy_udp_port)
+		dissector_delete_uint("udp.port", old_rtpproxy_udp_port, rtpproxy_udp_handle);
+	if(rtpproxy_udp_port != 0 && old_rtpproxy_udp_port != rtpproxy_udp_port)
+		dissector_add_uint("udp.port", rtpproxy_udp_port, rtpproxy_udp_handle);
+	old_rtpproxy_udp_port = rtpproxy_udp_port;
+}
+
+/*
+ * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 8
+ * tab-width: 8
+ * indent-tabs-mode: t
+ * End:
+ *
+ * vi: set shiftwidth=8 tabstop=8 noexpandtab:
+ * :indentSize=8:tabSize=8:noTabs=false:
+ */