From Neil Horman (with a few very minor changes by me).
authorwmeier <wmeier@f5534014-38df-0310-8fa8-9805f1628bb7>
Wed, 11 Feb 2009 00:40:21 +0000 (00:40 +0000)
committerwmeier <wmeier@f5534014-38df-0310-8fa8-9805f1628bb7>
Wed, 11 Feb 2009 00:40:21 +0000 (00:40 +0000)
git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@27417 f5534014-38df-0310-8fa8-9805f1628bb7

AUTHORS
epan/dissectors/packet-netdump.c [new file with mode: 0644]

diff --git a/AUTHORS b/AUTHORS
index 32c8e49e64d2718820fb0f356c6d87ba502d2f13..8538c401d84550f1da221f1f9b277fa01b441176 100644 (file)
--- a/AUTHORS
+++ b/AUTHORS
@@ -2797,6 +2797,10 @@ Johnny Mitrevski         <mitrevj [AT] hotmail.com> {
        BSSAP LE Dissector
 } 
 
+Neil Horman                    <nhorman [AT] tuxdriver.com> {
+       Netdump dissector
+}
+
 and by:
 
 Pavel Roskin            <proski [AT] gnu.org>
diff --git a/epan/dissectors/packet-netdump.c b/epan/dissectors/packet-netdump.c
new file mode 100644 (file)
index 0000000..58fa00e
--- /dev/null
@@ -0,0 +1,239 @@
+/* packet-netdump.c
+ * Routines for Netdump dissection
+ * Copyright 2009, Neil Horman <nhorman@tuxdriver.com> 
+ *
+ * $Id$
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <glib.h>
+
+#include <epan/packet.h>
+#include <epan/prefs.h>
+
+/* forward reference */
+void proto_reg_handoff_netdump(void);
+
+/* Initialize the protocol and registered fields */
+static int proto_netdump = -1;
+static int hf_netdump_magic_number = -1;
+static int hf_netdump_seq_nr = -1;
+static int hf_netdump_command = -1;
+static int hf_netdump_from = -1;
+static int hf_netdump_to = -1;
+static int hf_netdump_payload = -1;
+static int hf_netdump_code = -1;
+static int hf_netdump_info = -1;
+static int hf_netdump_version = -1;
+
+/* Global sample port pref */
+static guint gPORT_PREF = 0;
+
+/* Initialize the subtree pointers */
+static gint ett_netdump = -1;
+
+static const value_string command_names[] = {
+       { 0, "COMM_NONE" },
+       { 1, "COMM_SEND_MEM" },
+       { 2, "COMM_EXIT" },
+       { 3, "COMM_REBOOT" },
+       { 4, "COMM_HELLO" },
+       { 5, "COMM_GET_NR_PAGES" },
+       { 6, "COMM_GET_PAGE_SIZE" },
+       { 7, "COMM_START_NETDUMP_ACK" },
+       { 8, "COMM_GET_REGS" },
+       { 9, "COMM_SHOW_STATE" },
+       { 0, NULL }
+};
+
+static const value_string reply_code_names[] = {
+       { 0, "REPLY_NONE" },
+       { 1, "REPLY_ERROR" },
+       { 2, "REPLY_LOG" },
+       { 3, "REPLY_MEM" },
+       { 4, "REPLY_RESERVED" },
+       { 5, "REPLY_HELLO" },
+       { 6, "REPLY_NR_PAGES" },
+       { 7, "REPLY_PAGE_SIZE" },
+       { 8, "REPLY_START_NETDUMP" },
+       { 9, "REPLY_END_NETDUMP" },
+       { 10, "REPLY_REGS" },
+       { 11, "REPLY_MAGIC" },
+       { 12, "REPLY_SHOW_STATE" },
+       { 0, NULL }
+};
+
+
+/* Code to actually dissect the packets */
+static void
+dissect_netdump(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+
+       /* Check that there's enough data */
+       if (tvb_reported_length(tvb) == 0)
+               return;
+
+       if (check_col(pinfo->cinfo, COL_PROTOCOL)) {
+               col_set_str(pinfo->cinfo, COL_PROTOCOL, "Netdump");
+       }
+       /* Clear out stuff in the info column */
+       if (check_col(pinfo->cinfo,COL_INFO)) {
+               col_clear(pinfo->cinfo,COL_INFO);
+       }
+
+       if (tree) { /* we are being asked for details */
+               proto_item *ti = NULL;
+               proto_tree *netdump_tree = NULL;
+               ti = proto_tree_add_item(tree, proto_netdump, tvb, 0, -1, FALSE);
+               netdump_tree = proto_item_add_subtree(ti, ett_netdump);
+               if (tvb_reported_length(tvb) == 24) {
+                       /* Its a request format packet */
+                       proto_tree_add_item(netdump_tree, hf_netdump_magic_number, tvb, 0, 8, FALSE);
+                       proto_tree_add_item(netdump_tree, hf_netdump_seq_nr, tvb, 8, 4, FALSE);
+                       proto_tree_add_item(netdump_tree, hf_netdump_command, tvb, 12, 4, FALSE);
+                       proto_tree_add_item(netdump_tree, hf_netdump_from, tvb, 16, 4, FALSE);
+                       proto_tree_add_item(netdump_tree, hf_netdump_to, tvb, 20, 4, FALSE);
+               } else {
+                       /* Its a reply packet */
+                       proto_tree_add_item(netdump_tree, hf_netdump_version, tvb, 0, 1, FALSE);
+                       proto_tree_add_item(netdump_tree, hf_netdump_seq_nr, tvb, 1, 4, FALSE);
+                       proto_tree_add_item(netdump_tree, hf_netdump_code, tvb, 5, 4, FALSE);
+                       proto_tree_add_item(netdump_tree, hf_netdump_info, tvb, 9, 4, TRUE);
+                       proto_tree_add_item(netdump_tree, hf_netdump_payload, tvb, 13, -1, FALSE);
+               }
+       }
+}
+
+void proto_register_netdump(void)
+{
+       module_t *netdump_module;
+
+       /* Setup protocol subtree array */
+       static gint *ett[] = {
+               &ett_netdump
+       };
+
+       static hf_register_info hf[] = {
+               { &hf_netdump_magic_number,
+                       { "Netdump Magic Number", "netdump.magic",
+                       FT_UINT64, BASE_HEX,
+                       NULL, 0x0,
+                       NULL, HFILL }
+               },
+               { &hf_netdump_seq_nr,
+                       {"Netdump seq number", "netdump.seq_nr",
+                       FT_UINT32, BASE_HEX,
+                       NULL, 0x0,
+                       NULL, HFILL}
+               },
+               { &hf_netdump_command,
+                       {"Netdump command", "netdump.command",
+                       FT_UINT32, BASE_DEC,
+                       VALS(command_names), 0x0,
+                       NULL, HFILL}
+               },
+               { &hf_netdump_from,
+                       {"Netdump from val", "netdump.from",
+                       FT_UINT32, BASE_HEX,
+                       NULL, 0x0,
+                       NULL, HFILL}
+               },
+               { &hf_netdump_to,
+                       {"Netdump to val", "netdump.to",
+                       FT_UINT32, BASE_HEX,
+                       NULL, 0x0,
+                       NULL, HFILL}
+               },
+               { &hf_netdump_code,
+                       {"Netdump code", "netdump.code",
+                       FT_UINT32, BASE_DEC,
+                       VALS(reply_code_names), 0x0,
+                       NULL, HFILL}
+               },
+               { &hf_netdump_info,
+                       {"Netdump info", "netdump.info",
+                       FT_UINT32, BASE_HEX,
+                       NULL, 0x0,
+                       NULL, HFILL}
+               },
+               { &hf_netdump_payload,
+                       {"Netdump payload", "netdump.payload",
+                       FT_BYTES, BASE_HEX,
+                       NULL, 0x0,
+                       NULL, HFILL}
+               },
+               { &hf_netdump_version,
+                       {"Netdump version", "netdump.version",
+                       FT_UINT8, BASE_HEX,
+                       NULL, 0x0,
+                       NULL, HFILL}
+               }
+       };
+
+       proto_netdump = proto_register_protocol (
+               "Netdump Protocol",     /* name */
+               "Netdump",              /* short name */
+               "netdump"               /* abbrev */
+               );
+       proto_register_field_array(proto_netdump, hf, array_length(hf));
+       proto_register_subtree_array(ett, array_length(ett));
+
+       netdump_module = prefs_register_protocol(proto_netdump,
+               proto_reg_handoff_netdump);
+
+       /* Register a sample port preference   */
+       prefs_register_uint_preference(netdump_module, "udp.port",
+               "Netdump UDP port",
+               "port if other than the default",
+               10, &gPORT_PREF);
+}
+
+void proto_reg_handoff_netdump(void)
+{
+       static gboolean initalized = FALSE;
+       static dissector_handle_t netdump_handle;
+       static int CurrentPort;
+
+       if (!initalized) {
+               netdump_handle = create_dissector_handle(dissect_netdump,
+                               proto_netdump);
+
+               dissector_add_handle("udp.port", netdump_handle); /* For Decode As */
+               initalized = TRUE;
+       } else {
+               if (CurrentPort != 0)
+                       dissector_delete("udp.port", CurrentPort, netdump_handle);
+       }
+
+       CurrentPort = gPORT_PREF;
+
+       if (CurrentPort != 0)
+               dissector_add("udp.port", CurrentPort, netdump_handle);
+}
+