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wireshark/plugins/docsis/packet-dcd.c

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/* packet-dcd.c
* Routines for DCD Message dissection
* Copyright 2004, Darryl Hymel <darryl.hymel[AT]arrisi.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/exceptions.h>
void proto_register_docsis_dcd(void);
void proto_reg_handoff_docsis_dcd(void);
#define DCD_DOWN_CLASSIFIER 23
#define DCD_DSG_RULE 50
#define DCD_DSG_CONFIG 51
/* Define Downstrean Classifier subtypes
* These are subtype of DCD_DOWN_CLASSIFIER (23)
*/
#define DCD_CFR_ID 2
#define DCD_CFR_RULE_PRI 5
#define DCD_CFR_IP_CLASSIFIER 9
/* Define IP Classifier sub-subtypes
* These are subtypes of DCD_CFR_IP_CLASSIFIER (23.9)
*/
#define DCD_CFR_IP_SOURCE_ADDR 3
#define DCD_CFR_IP_SOURCE_MASK 4
#define DCD_CFR_IP_DEST_ADDR 5
#define DCD_CFR_IP_DEST_MASK 6
#define DCD_CFR_TCPUDP_SRCPORT_START 7
#define DCD_CFR_TCPUDP_SRCPORT_END 8
#define DCD_CFR_TCPUDP_DSTPORT_START 9
#define DCD_CFR_TCPUDP_DSTPORT_END 10
/* Define DSG Rule subtypes
* These are subtype of DCD_DSG_RULE (50)
*/
#define DCD_RULE_ID 1
#define DCD_RULE_PRI 2
#define DCD_RULE_UCID_RNG 3
#define DCD_RULE_CLIENT_ID 4
#define DCD_RULE_TUNL_ADDR 5
#define DCD_RULE_CFR_ID 6
#define DCD_RULE_VENDOR_SPEC 43
/* Define DSG Rule Client ID sub-subtypes
* These are subtypes of DCD_RULE_CLIENT_ID (50.4)
*/
#define DCD_CLID_BCAST_ID 1
#define DCD_CLID_KNOWN_MAC_ADDR 2
#define DCD_CLID_CA_SYS_ID 3
#define DCD_CLID_APP_ID 4
/* Define DSG Configuration subtypes
* These are subtype of DCD_DSG_CONFIG (51)
*/
#define DCD_CFG_CHAN_LST 1
#define DCD_CFG_TDSG1 2
#define DCD_CFG_TDSG2 3
#define DCD_CFG_TDSG3 4
#define DCD_CFG_TDSG4 5
#define DCD_CFG_VENDOR_SPEC 43
/* Initialize the protocol and registered fields */
static int proto_docsis_dcd = -1;
static int hf_docsis_dcd_config_ch_cnt = -1;
static int hf_docsis_dcd_num_of_frag = -1;
static int hf_docsis_dcd_frag_sequence_num = -1;
static int hf_docsis_dcd_cfr_id = -1;
static int hf_docsis_dcd_cfr_rule_pri = -1;
static int hf_docsis_dcd_cfr_ip_source_addr = -1;
static int hf_docsis_dcd_cfr_ip_source_mask = -1;
static int hf_docsis_dcd_cfr_ip_dest_addr = -1;
static int hf_docsis_dcd_cfr_ip_dest_mask = -1;
static int hf_docsis_dcd_cfr_tcpudp_srcport_start = -1;
static int hf_docsis_dcd_cfr_tcpudp_srcport_end = -1;
static int hf_docsis_dcd_cfr_tcpudp_dstport_start = -1;
static int hf_docsis_dcd_cfr_tcpudp_dstport_end = -1;
static int hf_docsis_dcd_rule_id = -1;
static int hf_docsis_dcd_rule_pri = -1;
static int hf_docsis_dcd_rule_ucid_list = -1;
static int hf_docsis_dcd_clid_bcast_id = -1;
static int hf_docsis_dcd_clid_known_mac_addr = -1;
static int hf_docsis_dcd_clid_ca_sys_id = -1;
static int hf_docsis_dcd_clid_app_id = -1;
static int hf_docsis_dcd_rule_tunl_addr = -1;
static int hf_docsis_dcd_rule_cfr_id = -1;
static int hf_docsis_dcd_rule_vendor_spec = -1;
static int hf_docsis_dcd_cfg_chan = -1;
static int hf_docsis_dcd_cfg_tdsg1 = -1;
static int hf_docsis_dcd_cfg_tdsg2 = -1;
static int hf_docsis_dcd_cfg_tdsg3 = -1;
static int hf_docsis_dcd_cfg_tdsg4 = -1;
static int hf_docsis_dcd_cfg_vendor_spec = -1;
/* Initialize the subtree pointers */
static gint ett_docsis_dcd = -1;
static gint ett_docsis_dcd_cfr = -1;
static gint ett_docsis_dcd_cfr_ip = -1;
static gint ett_docsis_dcd_rule = -1;
static gint ett_docsis_dcd_clid = -1;
static gint ett_docsis_dcd_cfg = -1;
/* Code to actually dissect the packets */
static void
dissect_dcd_dsg_cfg (tvbuff_t * tvb, proto_tree * tree, int start, guint16 len)
{
guint8 type, length;
proto_item *dcd_item;
proto_tree *dcd_tree;
int pos;
pos = start;
dcd_item = proto_tree_add_text ( tree, tvb, start, len, "51 DCD DSG Config Encodings (Length = %u)", len);
dcd_tree = proto_item_add_subtree ( dcd_item , ett_docsis_dcd_cfg);
while ( pos < ( start + len) )
{
type = tvb_get_guint8 (tvb, pos++);
length = tvb_get_guint8 (tvb, pos++);
switch (type)
{
case DCD_CFG_CHAN_LST:
if (length == 4)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfg_chan, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFG_TDSG1:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfg_tdsg1, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFG_TDSG2:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfg_tdsg2, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFG_TDSG3:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfg_tdsg3, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFG_TDSG4:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfg_tdsg4, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFG_VENDOR_SPEC:
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfg_vendor_spec, tvb,
pos, length, ENC_NA);
break;
}
pos = pos + length;
}
}
static void
dissect_dcd_down_classifier_ip (tvbuff_t * tvb, proto_tree * tree, int start, guint16 len)
{
guint8 type, length;
proto_item *dcd_item;
proto_tree *dcd_tree;
int pos;
pos = start;
dcd_item = proto_tree_add_text ( tree, tvb, start, len, "23.9 DCD_CFR_IP Encodings (Length = %u)", len);
dcd_tree = proto_item_add_subtree ( dcd_item , ett_docsis_dcd_cfr_ip);
while ( pos < ( start + len) )
{
type = tvb_get_guint8 (tvb, pos++);
length = tvb_get_guint8 (tvb, pos++);
switch (type)
{
case DCD_CFR_IP_SOURCE_ADDR:
if (length == 4)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfr_ip_source_addr, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFR_IP_SOURCE_MASK:
if (length == 4)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfr_ip_source_mask, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFR_IP_DEST_ADDR:
if (length == 4)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfr_ip_dest_addr, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFR_IP_DEST_MASK:
if (length == 4)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfr_ip_dest_mask, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFR_TCPUDP_SRCPORT_START:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfr_tcpudp_srcport_start, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFR_TCPUDP_SRCPORT_END:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfr_tcpudp_srcport_end, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFR_TCPUDP_DSTPORT_START:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfr_tcpudp_dstport_start, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFR_TCPUDP_DSTPORT_END:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfr_tcpudp_dstport_end, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
}
pos = pos + length;
}
}
static void
dissect_dcd_clid (tvbuff_t * tvb, proto_tree * tree, int start, guint16 len)
{
guint8 type, length;
proto_item *dcd_item;
proto_tree *dcd_tree;
int pos;
pos = start;
dcd_item = proto_tree_add_text ( tree, tvb, start, len, "50.4 DCD Rule ClientID Encodings (Length = %u)", len);
dcd_tree = proto_item_add_subtree ( dcd_item , ett_docsis_dcd_clid);
while ( pos < ( start + len) )
{
type = tvb_get_guint8 (tvb, pos++);
length = tvb_get_guint8 (tvb, pos++);
switch (type)
{
case DCD_CLID_BCAST_ID:
if (length == 2)
{
proto_tree_add_item(dcd_tree, hf_docsis_dcd_clid_bcast_id, tvb, pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CLID_KNOWN_MAC_ADDR:
if (length == 6)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_clid_known_mac_addr, tvb,
pos, length, ENC_NA);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CLID_CA_SYS_ID:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_clid_ca_sys_id, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CLID_APP_ID:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_clid_app_id, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
}
pos = pos + length;
}
}
static void
dissect_dcd_dsg_rule (tvbuff_t * tvb, proto_tree * tree, int start, guint16 len)
{
guint8 type, length;
proto_item *dcd_item;
proto_tree *dcd_tree;
int pos;
pos = start;
dcd_item = proto_tree_add_text ( tree, tvb, start, len, "50 DCD DSG Rule Encodings (Length = %u)", len);
dcd_tree = proto_item_add_subtree ( dcd_item , ett_docsis_dcd_rule);
while ( pos < ( start + len) )
{
type = tvb_get_guint8 (tvb, pos++);
length = tvb_get_guint8 (tvb, pos++);
switch (type)
{
case DCD_RULE_ID:
if (length == 1)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_rule_id, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_RULE_PRI:
if (length == 1)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_rule_pri, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_RULE_UCID_RNG:
proto_tree_add_item (dcd_tree, hf_docsis_dcd_rule_ucid_list, tvb,
pos, length, ENC_NA);
break;
case DCD_RULE_CLIENT_ID:
dissect_dcd_clid (tvb , dcd_tree , pos , length );
break;
case DCD_RULE_TUNL_ADDR:
if (length == 6)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_rule_tunl_addr, tvb,
pos, length, ENC_NA);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_RULE_CFR_ID:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_rule_cfr_id, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_RULE_VENDOR_SPEC:
proto_tree_add_item (dcd_tree, hf_docsis_dcd_rule_vendor_spec, tvb,
pos, length, ENC_NA);
break;
}
pos = pos + length;
}
}
static void
dissect_dcd_down_classifier (tvbuff_t * tvb, proto_tree * tree, int start, guint16 len)
{
guint8 type, length;
proto_item *dcd_item;
proto_tree *dcd_tree;
int pos;
pos = start;
dcd_item = proto_tree_add_text ( tree, tvb, start, len, "23 DCD_CFR Encodings (Length = %u)", len);
dcd_tree = proto_item_add_subtree ( dcd_item , ett_docsis_dcd_cfr);
while ( pos < ( start + len) )
{
type = tvb_get_guint8 (tvb, pos++);
length = tvb_get_guint8 (tvb, pos++);
switch (type)
{
case DCD_CFR_ID:
if (length == 2)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfr_id, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFR_RULE_PRI:
if (length == 1)
{
proto_tree_add_item (dcd_tree, hf_docsis_dcd_cfr_rule_pri, tvb,
pos, length, ENC_BIG_ENDIAN);
}
else
{
THROW (ReportedBoundsError);
}
break;
case DCD_CFR_IP_CLASSIFIER:
dissect_dcd_down_classifier_ip (tvb , dcd_tree , pos , length );
break;
}
pos = pos + length;
}
}
static void
dissect_dcd (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
{
guint16 pos;
guint8 type, length;
proto_tree *dcd_tree;
proto_item *dcd_item;
guint16 len;
len = tvb_length_remaining (tvb, 0);
col_set_str(pinfo->cinfo, COL_INFO, "DCD Message: ");
if (tree)
{
dcd_item =
proto_tree_add_protocol_format (tree, proto_docsis_dcd, tvb, 0,
tvb_length_remaining (tvb, 0),
"DCD Message");
dcd_tree = proto_item_add_subtree (dcd_item, ett_docsis_dcd);
proto_tree_add_item (dcd_tree, hf_docsis_dcd_config_ch_cnt, tvb, 0, 1, ENC_BIG_ENDIAN);
proto_tree_add_item (dcd_tree, hf_docsis_dcd_num_of_frag, tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item (dcd_tree, hf_docsis_dcd_frag_sequence_num, tvb, 2, 1, ENC_BIG_ENDIAN);
pos = 3;
while (pos < len)
{
type = tvb_get_guint8 (tvb, pos++);
length = tvb_get_guint8 (tvb, pos++);
switch (type)
{
case DCD_DOWN_CLASSIFIER:
dissect_dcd_down_classifier (tvb , dcd_tree , pos , length );
break;
case DCD_DSG_RULE:
dissect_dcd_dsg_rule (tvb , dcd_tree , pos , length );
break;
case DCD_DSG_CONFIG:
dissect_dcd_dsg_cfg (tvb , dcd_tree , pos , length );
break;
} /* switch(type) */
pos = pos + length;
} /* while (pos < len) */
} /* if (tree) */
}
/* Register the protocol with Wireshark */
/* this format is require because a script is used to build the C function
that calls all the protocol registration.
*/
void
proto_register_docsis_dcd (void)
{
/* Setup list of header fields See Section 1.6.1 for details*/
static hf_register_info hf[] = {
{&hf_docsis_dcd_config_ch_cnt,
{
"Configuration Change Count",
"docsis_dcd.config_ch_cnt",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_num_of_frag,
{
"Number of Fragments",
"docsis_dcd.num_of_frag",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_frag_sequence_num,
{
"Fragment Sequence Number",
"docsis_dcd.frag_sequence_num",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfr_id,
{
"Downstream Classifier Id",
"docsis_dcd.cfr_id",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfr_rule_pri,
{
"Downstream Classifier Rule Priority",
"docsis_dcd.cfr_rule_pri",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfr_ip_source_addr,
{
"Downstream Classifier IP Source Address",
"docsis_dcd.cfr_ip_source_addr",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfr_ip_source_mask,
{
"Downstream Classifier IP Source Mask",
"docsis_dcd.cfr_ip_source_mask",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfr_ip_dest_addr,
{
"Downstream Classifier IP Destination Address",
"docsis_dcd.cfr_ip_dest_addr",
FT_IPv4, BASE_NONE, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfr_ip_dest_mask,
{
"Downstream Classifier IP Destination Mask",
"docsis_dcd.cfr_ip_dest_mask",
FT_IPv4, BASE_NONE, NULL, 0x0,
"Downstream Classifier IP Destination Address",
HFILL
}
},
{&hf_docsis_dcd_cfr_tcpudp_srcport_start,
{
"Downstream Classifier IP TCP/UDP Source Port Start",
"docsis_dcd.cfr_ip_tcpudp_srcport_start",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfr_tcpudp_srcport_end,
{
"Downstream Classifier IP TCP/UDP Source Port End",
"docsis_dcd.cfr_ip_tcpudp_srcport_end",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfr_tcpudp_dstport_start,
{
"Downstream Classifier IP TCP/UDP Destination Port Start",
"docsis_dcd.cfr_ip_tcpudp_dstport_start",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfr_tcpudp_dstport_end,
{
"Downstream Classifier IP TCP/UDP Destination Port End",
"docsis_dcd.cfr_ip_tcpudp_dstport_end",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_rule_id,
{
"DSG Rule Id",
"docsis_dcd.rule_id",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_rule_pri,
{
"DSG Rule Priority",
"docsis_dcd.rule_pri",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_rule_ucid_list,
{
"DSG Rule UCID Range",
"docsis_dcd.rule_ucid_list",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_clid_bcast_id,
{
"DSG Rule Client ID Broadcast ID",
"docsis_dcd.clid_bcast_id",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_clid_known_mac_addr,
{
"DSG Rule Client ID Known MAC Address",
"docsis_dcd.clid_known_mac_addr",
FT_ETHER, BASE_NONE, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_clid_ca_sys_id,
{
"DSG Rule Client ID CA System ID",
"docsis_dcd.clid_ca_sys_id",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_clid_app_id,
{
"DSG Rule Client ID Application ID",
"docsis_dcd.clid_app_id",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_rule_tunl_addr,
{
"DSG Rule Tunnel MAC Address",
"docsis_dcd.rule_tunl_addr",
FT_ETHER, BASE_NONE, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_rule_cfr_id,
{
"DSG Rule Classifier ID",
"docsis_dcd.rule_cfr_id",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_rule_vendor_spec,
{
"DSG Rule Vendor Specific Parameters",
"docsis_dcd.rule_vendor_spec",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfg_chan,
{
"DSG Configuration Channel",
"docsis_dcd.cfg_chan",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfg_tdsg1,
{
"DSG Initialization Timeout (Tdsg1)",
"docsis_dcd.cfg_tdsg1",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfg_tdsg2,
{
"DSG Operational Timeout (Tdsg2)",
"docsis_dcd.cfg_tdsg2",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfg_tdsg3,
{
"DSG Two-Way Retry Timer (Tdsg3)",
"docsis_dcd.cfg_tdsg3",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfg_tdsg4,
{
"DSG One-Way Retry Timer (Tdsg4)",
"docsis_dcd.cfg_tdsg4",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL,
HFILL
}
},
{&hf_docsis_dcd_cfg_vendor_spec,
{
"DSG Configuration Vendor Specific Parameters",
"docsis_dcd.cfg_vendor_spec",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL,
HFILL
}
},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_docsis_dcd,
&ett_docsis_dcd_cfr,
&ett_docsis_dcd_cfr_ip,
&ett_docsis_dcd_rule,
&ett_docsis_dcd_clid,
&ett_docsis_dcd_cfg,
};
/* Register the protocol name and description */
proto_docsis_dcd =
proto_register_protocol ("DOCSIS Downstream Channel Descriptor",
"DOCSIS DCD", "docsis_dcd");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array (proto_docsis_dcd, hf, array_length (hf));
proto_register_subtree_array (ett, array_length (ett));
register_dissector ("docsis_dcd", dissect_dcd, proto_docsis_dcd);
}
/* If this dissector uses sub-dissector registration add a registration routine.
This format is required because a script is used to find these routines and
create the code that calls these routines.
*/
void
proto_reg_handoff_docsis_dcd (void)
{
dissector_handle_t docsis_dcd_handle;
docsis_dcd_handle = find_dissector ("docsis_dcd");
dissector_add_uint ("docsis_mgmt", 0x20, docsis_dcd_handle);
}
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