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authorJaap Keuter <jaap.keuter@xs4all.nl>2010-12-16 07:01:22 +0000
committerJaap Keuter <jaap.keuter@xs4all.nl>2010-12-16 07:01:22 +0000
commita6b55e6530d7af3afba0af7480cb0e7c455a463b (patch)
tree31d41299e17e1f60c598523e122699d805121dec /plugins/docsis/packet-dbcreq.c
parent5ae824fc8fdd1c2741fb10c1f03e4fd9dbba010f (diff)
From Guido Reismueller:
packet-mdd.c - TLV 15 fixed packet-tlv.c - Added Support for DOCSIS 3.0 TLVs (38-66) Added Support for the following DOCSIS 3.0 MAC Management Messages - DBC-REQ (packet-dbcreq.c) - DBC-RSP (packet-dbcrsp.c) - DBC-ACK (packet-dbcack.c) - CM-CTRL-REQ (packet-cmctrlreq.c) - CM-CTRL-RSP (packet-cmctrlrsp.c) - DPV-REQ (packet-dpvreq.c) - DPV-RSP (packet-dpvrsp.c) svn path=/trunk/; revision=35193
Diffstat (limited to 'plugins/docsis/packet-dbcreq.c')
-rw-r--r--plugins/docsis/packet-dbcreq.c133
1 files changed, 133 insertions, 0 deletions
diff --git a/plugins/docsis/packet-dbcreq.c b/plugins/docsis/packet-dbcreq.c
new file mode 100644
index 0000000000..20061a740c
--- /dev/null
+++ b/plugins/docsis/packet-dbcreq.c
@@ -0,0 +1,133 @@
+/* packet-dbcreq.c
+ * Routines for DOCSIS 3.0 Dynamic Bonding Change Request Message dissection.
+ * Copyright 2010, Guido Reismueller <g.reismueller[AT]avm.de>
+ *
+ * $Id$
+ *
+ * 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 <epan/packet.h>
+
+/* Initialize the protocol and registered fields */
+static int proto_docsis_dbcreq = -1;
+static int hf_docsis_dbcreq_tranid = -1;
+static int hf_docsis_dbcreq_number_of_fragments = -1;
+static int hf_docsis_dbcreq_fragment_sequence_number = -1;
+static dissector_handle_t docsis_tlv_handle;
+
+/* Initialize the subtree pointers */
+static gint ett_docsis_dbcreq = -1;
+
+/* Code to actually dissect the packets */
+static void
+dissect_dbcreq (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
+{
+ proto_item *dbcreq_item;
+ proto_tree *dbcreq_tree = NULL;
+ guint16 transid;
+ tvbuff_t *next_tvb;
+
+ transid = tvb_get_ntohs (tvb, 0);
+
+ col_clear (pinfo->cinfo, COL_INFO);
+ col_add_fstr (pinfo->cinfo, COL_INFO,
+ "Dynamic Bonding Change Request: Tran-Id = %u", transid);
+
+ if (tree)
+ {
+ dbcreq_item = proto_tree_add_protocol_format (tree, proto_docsis_dbcreq,
+ tvb, 0, -1,
+ "Dynamic Bonding Change Request");
+ dbcreq_tree = proto_item_add_subtree (dbcreq_item, ett_docsis_dbcreq);
+ proto_tree_add_item (dbcreq_tree, hf_docsis_dbcreq_tranid,
+ tvb, 0, 2, FALSE);
+ proto_tree_add_item( dbcreq_tree, hf_docsis_dbcreq_number_of_fragments,
+ tvb, 2, 1, FALSE );
+ proto_tree_add_item( dbcreq_tree, hf_docsis_dbcreq_fragment_sequence_number ,
+ tvb, 3, 1, FALSE );
+ }
+ /* Call Dissector for Appendix C TLV's */
+ next_tvb = tvb_new_subset_remaining (tvb, 4);
+ call_dissector (docsis_tlv_handle, next_tvb, pinfo, dbcreq_tree);
+}
+
+/* Register the protocol with Wireshark */
+
+/*
+ * this format is required because a script is used to build the C function
+ * that calls all the protocol registration.
+ */
+void
+proto_register_docsis_dbcreq (void)
+{
+ /* Setup list of header fields See Section 1.6.1 for details*/
+ static hf_register_info hf[] = {
+ {&hf_docsis_dbcreq_tranid,
+ {"Transaction Id", "docsis_dbcreq.tranid",
+ FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL}
+ },
+ {&hf_docsis_dbcreq_number_of_fragments,
+ {"Number of Fragments", "docsis_dbcreq.number_of_fragments",
+ FT_UINT8, BASE_HEX_DEC, NULL, 0x0,
+ NULL, HFILL}
+ },
+ {&hf_docsis_dbcreq_fragment_sequence_number,
+ {"Fragment Seq No", "docsis_dbcreq.fragment_sequence_number",
+ FT_UINT8, BASE_HEX_DEC, NULL, 0x0,
+ NULL, HFILL}
+ },
+ };
+
+/* Setup protocol subtree array */
+ static gint *ett[] = {
+ &ett_docsis_dbcreq,
+ };
+
+/* Register the protocol name and description */
+ proto_docsis_dbcreq = proto_register_protocol ("DOCSIS Dynamic Bonding Change Request",
+ "DOCSIS DBC-REQ",
+ "docsis_dbcreq");
+
+/* Required function calls to register the header fields and subtrees used */
+ proto_register_field_array (proto_docsis_dbcreq, hf, array_length (hf));
+ proto_register_subtree_array (ett, array_length (ett));
+
+ register_dissector ("docsis_dbcreq", dissect_dbcreq, proto_docsis_dbcreq);
+}
+
+
+/* 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_dbcreq (void)
+{
+ dissector_handle_t docsis_dbcreq_handle;
+
+ docsis_dbcreq_handle = find_dissector ("docsis_dbcreq");
+ docsis_tlv_handle = find_dissector ("docsis_tlv");
+ dissector_add ("docsis_mgmt", 0x24, docsis_dbcreq_handle);
+}