diff options
Diffstat (limited to 'plugins/docsis/packet-regreqmp.c')
| -rw-r--r-- | plugins/docsis/packet-regreqmp.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/plugins/docsis/packet-regreqmp.c b/plugins/docsis/packet-regreqmp.c new file mode 100644 index 0000000000..2346ca0662 --- /dev/null +++ b/plugins/docsis/packet-regreqmp.c @@ -0,0 +1,151 @@ +/* packet-regreqmp.c + * $Id$ + * Routines for REG-REQ-MP Message dissection + * Copyright 2007, Bruno Verstuyft <bruno.verstuyft@excentis.com> + * + * Based on packet-regreq.c (by 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <epan/packet.h> + + +/* Initialize the protocol and registered fields */ +static int proto_docsis_regreqmp = -1; +static int hf_docsis_regreqmp = -1; + +static int hf_docsis_regreqmp_sid = -1; + +static int hf_docsis_regreqmp_number_of_fragments = -1; +static int hf_docsis_regreqmp_fragment_sequence_number = -1; + +static dissector_handle_t docsis_tlv_handle; + + + +/* Initialize the subtree pointers */ +static gint ett_docsis_regreqmp = -1; + +static void +dissect_regreqmp (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree) +{ + + proto_item *it; + proto_tree *regreqmp_tree; + tvbuff_t *next_tvb; + + if (check_col (pinfo->cinfo, COL_INFO)) + { + col_clear (pinfo->cinfo, COL_INFO); + col_add_fstr (pinfo->cinfo, COL_INFO, + "REG-REQ-MP Message:"); + } + + if (tree) + { + it = proto_tree_add_protocol_format (tree, proto_docsis_regreqmp, tvb, 0, -1,"REG-REQ-MP Message"); + regreqmp_tree = proto_item_add_subtree (it, ett_docsis_regreqmp); + + proto_tree_add_item (regreqmp_tree, hf_docsis_regreqmp_sid, tvb, 0, 2, FALSE); + proto_tree_add_item (regreqmp_tree, hf_docsis_regreqmp_number_of_fragments, tvb, 2, 1, FALSE); + proto_tree_add_item (regreqmp_tree, hf_docsis_regreqmp_fragment_sequence_number, tvb, 3, 1, FALSE); + + /* Call Dissector for Appendix C TLV's */ + next_tvb = tvb_new_subset (tvb, 4, -1, -1); + call_dissector (docsis_tlv_handle, next_tvb, pinfo, regreqmp_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_regreqmp (void) +{ + /* Setup list of header fields See Section 1.6.1 for details*/ + static hf_register_info hf[] = { + {&hf_docsis_regreqmp, + {"REG-REQ-MP Message", "docsis_regreqmp", + FT_BYTES, BASE_HEX, NULL, 0x0, + "REG-REQ-MP Message", HFILL} + }, + {&hf_docsis_regreqmp_sid, + {"Sid", "docsis_regreqmp.sid", + FT_UINT16, BASE_DEC, NULL, 0x0, + "Reg-Req-Mp Sid", HFILL} + }, + {&hf_docsis_regreqmp_number_of_fragments, + {"Number of Fragments", "docsis_regreqmp.number_of_fragments", + FT_UINT8, BASE_DEC, NULL, 0x0, + "Reg-Req-Mp Number of Fragments", HFILL} + }, + {&hf_docsis_regreqmp_fragment_sequence_number, + {"Fragment Sequence Number", "docsis_regreqmp.fragment_sequence_number", + FT_UINT8, BASE_DEC, NULL, 0x0, + "Reg-Req-Mp Fragment Sequence Number", HFILL} + }, + }; + + /* Setup protocol subtree array */ + static gint *ett[] = { + &ett_docsis_regreqmp, + }; + + /* Register the protocol name and description */ + proto_docsis_regreqmp = + proto_register_protocol ("DOCSIS Registration Request Multipart", + "DOCSIS Reg-Req-Mp", "docsis_regreqmp"); + + /* Required function calls to register the header fields and subtrees used */ + proto_register_field_array (proto_docsis_regreqmp, hf, array_length (hf)); + proto_register_subtree_array (ett, array_length (ett)); + + register_dissector ("docsis_regreqmp", dissect_regreqmp, proto_docsis_regreqmp); +} + + +/* 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_regreqmp (void) +{ + dissector_handle_t docsis_regreqmp_handle; + + docsis_tlv_handle = find_dissector ("docsis_tlv"); + docsis_regreqmp_handle = find_dissector ("docsis_regreqmp"); + dissector_add ("docsis_mgmt", 44, docsis_regreqmp_handle); +} |