diff options
Diffstat (limited to 'plugins/docsis/packet-sync.c')
| -rw-r--r-- | plugins/docsis/packet-sync.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/plugins/docsis/packet-sync.c b/plugins/docsis/packet-sync.c new file mode 100644 index 0000000000..4e2668f8bd --- /dev/null +++ b/plugins/docsis/packet-sync.c @@ -0,0 +1,125 @@ +/* packet-sync.c + * $Id$ + * Routines for Sync Message dissection + * Copyright 2007, Bruno Verstuyft <bruno.verstuyft@excentis.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., 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_sync = -1; +static int hf_docsis_sync = -1; +static int hf_docsis_sync_cmts_timestamp = -1; + + +/* Initialize the subtree pointers */ +static gint ett_docsis_sync = -1; + +static void +dissect_sync (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree) +{ + proto_item *it; + proto_tree *sync_tree; + + if (check_col (pinfo->cinfo, COL_INFO)) + { + col_clear (pinfo->cinfo, COL_INFO); + col_add_fstr (pinfo->cinfo, COL_INFO, + "Sync Message:"); + } + + if (tree) + { + it = proto_tree_add_protocol_format (tree, proto_docsis_sync, tvb, 0, -1,"SYNC Message"); + sync_tree = proto_item_add_subtree (it, ett_docsis_sync); + + proto_tree_add_item (sync_tree, hf_docsis_sync_cmts_timestamp, tvb, 0, 4, + FALSE); + } /* 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_sync (void) +{ + /* Setup list of header fields See Section 1.6.1 for details*/ + static hf_register_info hf[] = { + {&hf_docsis_sync, + {"SYNC Message", "docsis_sync", + FT_BYTES, BASE_HEX, NULL, 0x0, + "SYNC Message", HFILL} + }, + {&hf_docsis_sync_cmts_timestamp, + {"CMTS Timestamp", "docsis_sync.cmts_timestamp", + FT_UINT32, BASE_DEC, NULL, 0x0, + "Sync CMTS Timestamp", HFILL} + }, + }; + + /* Setup protocol subtree array */ + static gint *ett[] = { + &ett_docsis_sync, + }; + + /* Register the protocol name and description */ + proto_docsis_sync = + proto_register_protocol ("DOCSIS Synchronisation Message", + "DOCSIS Sync", "docsis_sync"); + + /* Required function calls to register the header fields and subtrees used */ + proto_register_field_array (proto_docsis_sync, hf, array_length (hf)); + proto_register_subtree_array (ett, array_length (ett)); + + register_dissector ("docsis_sync", dissect_sync, proto_docsis_sync); +} + + +/* 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_sync (void) +{ + dissector_handle_t docsis_sync_handle; + + docsis_sync_handle = find_dissector ("docsis_sync"); + dissector_add ("docsis_mgmt", 1, docsis_sync_handle); +} |