osmith
/
wireshark
forked from osmocom/wireshark
1
0
Fork 0
Code Pull Requests Releases Wiki Activity

Initial Skinny Client Control Protocol support, from Joerg Mayer. 

svn path=/trunk/; revision=4016
This commit is contained in:
Guy Harris 2001-10-11 16:01:10 +00:00
parent bc34ab11b7
commit 68924359db
4 changed files with 298 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
AUTHORS
View File

@ -80,6 +80,7 @@ Joerg Mayer <jmayer[AT]loplof.de> {
Define __USE_XOPEN in files that use "strptime()"
Various signed vs. unsigned fixes
Crank up the warning level in GCC
Skinny (Official Name: SCCP)
}
Martin Maciaszek <fastjack[AT]i-s-o.net> {

3
Makefile.am
View File

@ -1,7 +1,7 @@
# Makefile.am
# Automake file for Ethereal
#
# $Id: Makefile.am,v 1.370 2001/10/08 17:30:23 guy Exp $
# $Id: Makefile.am,v 1.371 2001/10/11 16:01:10 guy Exp $
#
# Ethereal - Network traffic analyzer
# By Gerald Combs <gerald@ethereal.com>
@ -222,6 +222,7 @@ DISSECTOR_SRC = \
packet-sctp.c \
packet-sdp.c \
packet-sip.c \
packet-skinny.c \
packet-sll.c \
packet-smb.c \
packet-smb-browse.c \

3
Makefile.nmake
View File

@ -1,7 +1,7 @@
## Makefile for building ethereal.exe with Microsoft C and nmake
## Use: $(MAKE) /$(MAKEFLAGS) -f makefile.nmake
#
# $Id: Makefile.nmake,v 1.132 2001/10/08 17:30:23 guy Exp $
# $Id: Makefile.nmake,v 1.133 2001/10/11 16:01:10 guy Exp $
include config.nmake
include <win32.mak>
@ -174,6 +174,7 @@ DISSECTOR_SRC = \
packet-sctp.c \
packet-sdp.c \
packet-sip.c \
packet-skinny.c \
packet-sll.c \
packet-smb.c \
packet-smb-browse.c \

293
packet-skinny.c Normal file
View File

@ -0,0 +1,293 @@
/* packet-skinny.c
*
* Dissector for the Skinny Client Control Protocol
* (The "D-Channel"-Protocol for Cisco Systems' IP-Phones)
* Copyright 2001, Joerg Mayer (email: see AUTHORS file)
*
* This file is based on packet-aim.c, which is
* Copyright 2000, Ralf Hoelzer <ralf@well.com>
*
* $Id: packet-skinny.c,v 1.1 2001/10/11 16:01:10 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* This implementation is based on a draft version of the 3.0
* specification
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
/* REMOVE?
* #include <stdio.h>
* #include <stdlib.h>
* #include <string.h>
* #include <ctype.h>
*
* #ifdef HAVE_SYS_TYPES_H
* # include <sys/types.h>
* #endif
*
* #ifdef HAVE_NETINET_IN_H
* # include <netinet/in.h>
* #endif
*
* #include <glib.h> // already in packet.h -> tvbuff.h
*
* #ifdef NEED_SNPRINTF_H
* # include "snprintf.h"
* #endif
*/
#include "packet.h"
/* REMOVE?
* #include "strutil.h"
*/
#define TCP_PORT_SKINNY 2000
/* I will probably need this again when I change things
* to function pointers, but let me use the existing
* infrastructure for now
*
* typedef struct {
* guint32 id;
* char * name;
* } message_id_t;
*/
static const value_string message_id[] = {
/* Station -> Callmanager */
{0x0000, "KeepAliveMessage"},
{0x0001, "RegisterMessage"},
{0x0002, "IpPortMessage"},
{0x0003, "KeypadButtonMessage"},
{0x0004, "EnblocCallMessage"},
{0x0005, "StimulusMessage"},
{0x0006, "OffHookMessage"},
{0x0007, "OnHookMessage"},
{0x0008, "HookFlashMessage"},
{0x0009, "ForwardStatReqMessage"},
{0x000A, "SpeedDialStatReqMessage"},
{0x000B, "LineStatReqMessage"},
{0x000C, "ConfigStatReqMessage"},
{0x000D, "TimeDateReqMessage"},
{0x000E, "ButtonTemplateReqMessage"},
{0x000F, "VersionReqMessage"},
{0x0010, "CapabilitiesResMessage"},
{0x0011, "MediaPortListMessage"},
{0x0012, "ServerReqMessage"},
{0x0020, "AlarmMessage"},
{0x0021, "MulticastMediaReceptionAck"},
{0x0022, "OpenReceiveChannelAck"},
{0x0023, "ConnectionStatisticsRes"},
{0x0024, "OffHookWithCgpnMessage"},
{0x0025, "SoftKeySetReqMessage"},
{0x0026, "SoftKeyEventMessage"},
{0x0027, "UnregisterMessage"},
{0x0028, "SoftKeyEventMessage"},
{0x0029, "RegisterTokenReq"},
/* Callmanager -> Station */
/* 0x0000, 0x0003? */
{0x0081, "RegisterAckMessage"},
{0x0082, "StartToneMessage"},
{0x0083, "StopToneMessage"},
{0x0085, "SetRingerMessage"},
{0x0086, "SetLampMessage"},
{0x0087, "SetHkFDetectMessage"},
{0x0088, "SetSpeakerModeMessage"},
{0x0089, "SetMicroModeMessage"},
{0x008A, "StartMediaTransmission"},
{0x008B, "StopMediaTransmission"},
{0x008C, "StartMediaReception"},
{0x008D, "StopMediaReception"},
{0x008F, "CallInfoMessage"},
{0x0090, "ForwardStatMessage"},
{0x0091, "SpeedDialStatMessage"},
{0x0092, "LineStatMessage"},
{0x0093, "ConfigStatMessage"},
{0x0094, "DefineTimeDate"},
{0x0095, "StartSessionTransmission"},
{0x0096, "StopSessionTransmission"},
{0x0097, "ButtonTemplateMessage"},
{0x0098, "VersionMessage"},
{0x0099, "DisplayTextMessage"},
{0x009A, "ClearDisplay"},
{0x009B, "CapabilitiesReqMessage"},
{0x009C, "EnunciatorCommandMessage"},
{0x009D, "RegisterRejectMessage"},
{0x009E, "ServerResMessage"},
{0x009F, "Reset"},
{0x0100, "KeepAliveAckMessage"},
{0x0101, "StartMulticastMediaReception"},
{0x0102, "StartMulticastMediaTransmission"},
{0x0103, "StopMulticastMediaReception"},
{0x0104, "StopMulticastMediaTransmission"},
{0x0105, "OpenReceiveChannel"},
{0x0106, "CloseReceiveChannel"},
{0x0107, "ConnectionStatisticsReq"},
{0x0108, "SoftKeyTemplateResMessage"},
{0x0109, "SoftKeySetResMessage"},
{0x0110, "SelectSoftKeysMessage"},
{0x0111, "CallStateMessage"},
{0x0112, "DisplayPromptStatusMessage"},
{0x0113, "ClearPromptStatusMessage"},
{0x0114, "DisplayNotifyMessage"},
{0x0115, "ClearNotifyMessage"},
{0x0116, "ActivateCallPlaneMessage"},
{0x0117, "DeactivateCallPlaneMessage"},
{0x0118, "UnregisterAckMessage"},
{0x0119, "BackSpaceReqMessage"},
{0x011A, "RegisterTokenAck"},
{0x011B, "RegisterTokenReject"},
{0 , NULL} /* needed for value_string automagic */
};
static void dissect_skinny(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
/* Initialize the protocol and registered fields */
static int proto_skinny = -1;
static int hf_skinny_data_length = -1;
static int hf_skinny_reserved = -1;
static int hf_skinny_messageid = -1;
/* Initialize the subtree pointers */
static gint ett_skinny = -1;
/* Code to actually dissect the packets */
static void dissect_skinny(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
/* The general structure of a packet: {IP-Header|TCP-Header|n*SKINNY}
* SKINNY-Packet: {Header(Size, Reserved)|Data(MessageID, Message-Data)}
*/
/* Header fields */
guint32 hdr_data_length;
guint32 hdr_reserved;
guint32 data_messageid;
gchar *messageid_str;
guint32 data_size;
/* Set up structures we will need to add the protocol subtree and manage it */
proto_item *ti;
proto_tree *skinny_tree = NULL;
/* check, if this is really an SKINNY packet, they start with a length + 0 */
/* get relevant header information */
hdr_data_length = tvb_get_letohl(tvb, 0);
hdr_reserved = tvb_get_letohl(tvb, 4);
data_messageid = tvb_get_letohl(tvb, 8);
data_size = MIN(8+hdr_data_length, tvb_length(tvb)) - 0xC;
/* hdr_data_length > 1024 is just a heuristic. Better values/checks welcome */
if (hdr_data_length < 4 || hdr_data_length > 1024 || hdr_reserved != 0) {
/* Not an SKINNY packet, just happened to use the same port */
return;
}
/* Make entries in Protocol column and Info column on summary display */
if (check_col(pinfo->fd, COL_PROTOCOL))
col_set_str(pinfo->fd, COL_PROTOCOL, "SKINNY");
if (check_col(pinfo->fd, COL_INFO))
col_add_str(pinfo->fd, COL_INFO, "Skinny Client Control Protocol");
/* In the interest of speed, if "tree" is NULL, don't do any work not
* necessary to generate protocol tree items. */
if (tree) {
ti = proto_tree_add_item(tree, proto_skinny, tvb, 0,
data_size + 0xC, FALSE);
skinny_tree = proto_item_add_subtree(ti, ett_skinny);
proto_tree_add_uint(skinny_tree, hf_skinny_data_length, tvb,
0, 4, hdr_data_length);
proto_tree_add_uint(skinny_tree, hf_skinny_reserved, tvb,
4, 4, hdr_reserved);
}
messageid_str = val_to_str(data_messageid, message_id, "0x%08X (Unknown)");
if (check_col(pinfo->fd, COL_INFO)) {
col_add_str(pinfo->fd, COL_INFO, messageid_str);
}
if (tree) {
proto_tree_add_uint(skinny_tree, hf_skinny_messageid, tvb,
8, 4, data_messageid /* FIXME: add messageid_str */ );
if (data_size > 0) {
proto_tree_add_protocol_format(skinny_tree, proto_skinny, tvb,
0xC,
data_size, "Data (%d byte%s)", data_size,
plurality(data_size, "", "s"));
}
}
/*FIXME: call dissect_skinny recursively until all data is used up */
}
/* Register the protocol with Ethereal */
void
proto_register_skinny(void)
{
/* Setup list of header fields */
static hf_register_info hf[] = {
{ &hf_skinny_data_length,
{ "Data Length", "skinny.data_length",
FT_UINT32, BASE_HEX, NULL, 0x0,
"Number of bytes in the data portion.",
HFILL }
},
{ &hf_skinny_reserved,
{ "Reserved", "skinny.reserved",
FT_UINT32, BASE_HEX, NULL, 0x0,
"Reserved for furture(?) use.",
HFILL }
},
/* FIXME: Enable use of message name ??? */
{ &hf_skinny_messageid,
{ "Message ID", "skinny.messageid",
// FIXME: FT_UINT32, BASE_HEX, VALS(message_id), 0x0,
FT_UINT32, BASE_HEX, NULL, 0x0,
"The function requested/done with this message.",
HFILL }
},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_skinny,
};
/* Register the protocol name and description */
proto_skinny = proto_register_protocol("Skinny Client Control Protocol",
"SKINNY", "skinny");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_skinny, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
};
void
proto_reg_handoff_skinny(void)
{
dissector_add("tcp.port", TCP_PORT_SKINNY, &dissect_skinny, proto_skinny);
}