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/* packet-bpkmrsp.c
* Routines for Baseline Privacy Key Management Response dissection
* Copyright 2002, Anand V. Narwani <anand[AT]narwani.org>
*
* 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>
void proto_register_docsis_bpkmrsp(void);
void proto_reg_handoff_docsis_bpkmrsp(void);
/* Initialize the protocol and registered fields */
static int proto_docsis_bpkmrsp = -1;
static int hf_docsis_bpkmrsp_code = -1;
static int hf_docsis_bpkmrsp_length = -1;
static int hf_docsis_bpkmrsp_ident = -1;
static const value_string code_field_vals[] = {
{ 0, "Reserved"},
{ 1, "Reserved"},
{ 2, "Reserved"},
{ 3, "Reserved"},
{ 4, "Auth Response"},
{ 5, "Auth Reply"},
{ 6, "Auth Reject"},
{ 7, "Key Response"},
{ 8, "Key Reply"},
{ 9, "Key Reject"},
{10, "Auth Invalid"},
{11, "TEK Invalid"},
{12, "Authent Info"},
{13, "Map Response"},
{14, "Map Reply"},
{15, "Map Reject"},
{0, NULL},
};
/* Initialize the subtree pointers */
static gint ett_docsis_bpkmrsp = -1;
static dissector_handle_t attrs_handle;
static dissector_handle_t docsis_bpkmrsp_handle;
/* Dissection */
static int
dissect_bpkmrsp (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* data _U_)
{
proto_item *it;
proto_tree *bpkmrsp_tree;
guint8 code;
tvbuff_t *attrs_tvb;
code = tvb_get_guint8 (tvb, 0);
col_add_fstr (pinfo->cinfo, COL_INFO, "BPKM Response (%s)",
val_to_str (code, code_field_vals, "Unknown code %u"));
if (tree)
{
it =
proto_tree_add_protocol_format (tree, proto_docsis_bpkmrsp, tvb, 0, -1,
"BPKM Response Message");
bpkmrsp_tree = proto_item_add_subtree (it, ett_docsis_bpkmrsp);
proto_tree_add_item (bpkmrsp_tree, hf_docsis_bpkmrsp_code, tvb, 0, 1,
ENC_BIG_ENDIAN);
proto_tree_add_item (bpkmrsp_tree, hf_docsis_bpkmrsp_ident, tvb, 1, 1,
ENC_BIG_ENDIAN);
proto_tree_add_item (bpkmrsp_tree, hf_docsis_bpkmrsp_length, tvb, 2, 2,
ENC_BIG_ENDIAN);
}
/* Code to Call subdissector */
attrs_tvb = tvb_new_subset_remaining (tvb, 4);
call_dissector (attrs_handle, attrs_tvb, pinfo, tree);
return tvb_captured_length(tvb);
}
/* Register the protocol with Wireshark */
void
proto_register_docsis_bpkmrsp (void)
{
static hf_register_info hf[] = {
{&hf_docsis_bpkmrsp_code,
{"BPKM Code", "docsis_bpkmrsp.code",
FT_UINT8, BASE_DEC, VALS (code_field_vals), 0x0,
"BPKM Response Message", HFILL}
},
{&hf_docsis_bpkmrsp_ident,
{"BPKM Identifier", "docsis_bpkmrsp.ident",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
{&hf_docsis_bpkmrsp_length,
{"BPKM Length", "docsis_bpkmrsp.length",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
};
static gint *ett[] = {
&ett_docsis_bpkmrsp,
};
proto_docsis_bpkmrsp =
proto_register_protocol
("DOCSIS Baseline Privacy Key Management Response", "DOCSIS BPKM-RSP",
"docsis_bpkmrsp");
proto_register_field_array (proto_docsis_bpkmrsp, hf, array_length (hf));
proto_register_subtree_array (ett, array_length (ett));
docsis_bpkmrsp_handle = register_dissector ("docsis_bpkmrsp", dissect_bpkmrsp,
proto_docsis_bpkmrsp);
}
void
proto_reg_handoff_docsis_bpkmrsp (void)
{
attrs_handle = find_dissector ("docsis_bpkmattr");
dissector_add_uint ("docsis_mgmt", 0x0D, docsis_bpkmrsp_handle);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* 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:
*/
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