From Anand V. Narwani:

	DOCSIS support, including support for "Ethernet" captures where
	    the raw frame is a DOCSIS frame rather than an Ethernet
	    frame (some Cisco cable-modem head-end gear can send out a
	    trace of all traffic on an Ethernet, but what it sends are
	    the raw bytes of DOCSIS frames, not Ethernet frames)

Get rid of second AUTHORS entry for Devin Heitmueller, merging its item
into the older entry.

Clean up the order of some lists of plugin items.

svn path=/trunk/; revision=5861

1 files changed, 160 insertions, 0 deletions

diff --git a/plugins/docsis/packet-dscreq.c b/plugins/docsis/packet-dscreq.c
new file mode 100644
index 0000000000..466e532ed7
--- /dev/null
+++ b/plugins/docsis/packet-dscreq.c
@@ -0,0 +1,160 @@
+/* packet-dscreq.c
+ * Routines for Dynamic Service Change Request dissection
+ * Copyright 2002, Anand V. Narwani <anarwani@cisco.com>
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * 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 "plugins/plugin_api.h"
+#include "plugins/plugin_api_defs.h"
+#include "moduleinfo.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+
+#include <gmodule.h>
+
+#ifdef NEED_SNPRINTF_H
+# include "snprintf.h"
+#endif
+
+#include <epan/packet.h>
+
+/* Initialize the protocol and registered fields */
+static int proto_docsis_dscreq = -1;
+static int hf_docsis_dscreq = -1;
+static int hf_docsis_dscreq_tranid = -1;
+static dissector_handle_t docsis_tlv_handle;
+
+
+/* Initialize the subtree pointers */
+static gint ett_docsis_dscreq = -1;
+
+/* Code to actually dissect the packets */
+static void
+dissect_dscreq (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
+{
+
+  proto_item *it;
+  proto_tree *dscreq_tree;
+  guint16 tlv_data_len;
+  guint16 transid;
+  tvbuff_t *next_tvb;
+
+
+  transid = tvb_get_ntohs (tvb, 0);
+  tlv_data_len = tvb_length_remaining (tvb, 2);
+
+  if (check_col (pinfo->cinfo, COL_INFO))
+    {
+      col_clear (pinfo->cinfo, COL_INFO);
+      col_add_fstr (pinfo->cinfo, COL_INFO,
+		    "Dynamic Service Change Request Tran-id = %u", transid);
+    }
+
+  if (tree)
+    {
+      it =
+	proto_tree_add_protocol_format (tree, proto_docsis_dscreq, tvb, 0,
+					tvb_length_remaining (tvb, 0),
+					"DSC Request");
+      dscreq_tree = proto_item_add_subtree (it, ett_docsis_dscreq);
+      proto_tree_add_item (dscreq_tree, hf_docsis_dscreq_tranid, tvb, 0, 2,
+			   FALSE);
+
+      /* Call dissector for Appendix C TLV's */
+      next_tvb = tvb_new_subset (tvb, 2, tlv_data_len, tlv_data_len);
+      call_dissector (docsis_tlv_handle, next_tvb, pinfo, dscreq_tree);
+    }
+
+}
+
+
+
+
+/* Register the protocol with Ethereal */
+
+/* this format is require because a script is used to build the C function
+   that calls all the protocol registration.
+*/
+
+
+void
+proto_register_docsis_dscreq (void)
+{
+
+/* Setup list of header fields  See Section 1.6.1 for details*/
+  static hf_register_info hf[] = {
+    {&hf_docsis_dscreq,
+     {"Dynamic Service Change Request", "docsis.dscreq",
+      FT_BYTES, BASE_HEX, NULL, 0x0,
+      "Dynamic Service Addition Request", HFILL}
+     },
+    {&hf_docsis_dscreq_tranid,
+     {"Transaction Id", "docsis.dscreq.tranid",
+      FT_UINT16, BASE_DEC, NULL, 0x0,
+      "Transaction Id", HFILL}
+     },
+  };
+
+/* Setup protocol subtree array */
+  static gint *ett[] = {
+    &ett_docsis_dscreq,
+  };
+
+/* Register the protocol name and description */
+  proto_docsis_dscreq =
+    proto_register_protocol ("DOCSIS Dynamic Service Change Request",
+			     "DOCSIS DSC-REQ", "docsis_dscreq");
+
+/* Required function calls to register the header fields and subtrees used */
+  proto_register_field_array (proto_docsis_dscreq, hf, array_length (hf));
+  proto_register_subtree_array (ett, array_length (ett));
+
+  register_dissector ("docsis_dscreq", dissect_dscreq, proto_docsis_dscreq);
+}
+
+
+/* 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_dscreq (void)
+{
+  dissector_handle_t docsis_dscreq_handle;
+
+  docsis_dscreq_handle = find_dissector ("docsis_dscreq");
+  docsis_tlv_handle = find_dissector ("docsis_tlv");
+  dissector_add ("docsis_mgmt", 0x12, docsis_dscreq_handle);
+
+}