from Gerhard Gappmeier:

renamed prefix ua_ -> opcua_
remove unused code

svn path=/trunk/; revision=21784

1 files changed, 211 insertions, 0 deletions

diff --git a/plugins/opcua/opcua_transport_layer.c b/plugins/opcua/opcua_transport_layer.c
new file mode 100644
index 0000000000..b96e92adff
--- /dev/null
+++ b/plugins/opcua/opcua_transport_layer.c
@@ -0,0 +1,211 @@
+/******************************************************************************
+** $Id$
+**
+** Copyright (C) 2006-2007 ascolab GmbH. All Rights Reserved.
+** Web: http://www.ascolab.com
+** 
+** 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 file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+** 
+** Project: OpcUa Wireshark Plugin
+**
+** Description: OpcUa Transport Layer Decoder.
+**
+** Author: Gerhard Gappmeier <gerhard.gappmeier@ascolab.com>
+** Last change by: $Author: gergap $
+**
+******************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <gmodule.h>
+#include <epan/packet.h>
+#include "opcua_security_layer.h"
+#include "opcua_application_layer.h"
+#include "opcua_simpletypes.h"
+#include <string.h>
+#include <epan/emem.h>
+
+void dispatchService(proto_tree *tree, tvbuff_t *tvb, gint *pOffset, int ServiceId);
+
+static int hf_opcua_transport_sig = -1;
+static int hf_opcua_transport_len = -1;
+static int hf_opcua_transport_ver = -1;
+static int hf_opcua_transport_cid = -1;
+static int hf_opcua_transport_lifetime = -1;
+static int hf_opcua_transport_sbl = -1;
+static int hf_opcua_transport_rbl = -1;
+static int hf_opcua_transport_endpoint = -1;
+static int hf_opcua_transport_rlifetime = -1;
+static int hf_opcua_transport_rsbl = -1;
+static int hf_opcua_transport_rrbl = -1;
+static int hf_opcua_transport_altendpoint = -1;
+static int hf_opcua_transport_rqid = -1;
+static int hf_opcua_transport_status = -1;
+extern gint ett_opcua_nodeid;
+
+static hf_register_info hf[] =
+{
+    { &hf_opcua_transport_sig,
+    /* full name  ,           abbreviation  ,       type     , display  , strings, bitmask, blurb, id, parent, ref_count, bitshift */
+    {  "Signature",           "transport.sig",      FT_STRING, BASE_NONE, NULL,    0x0,     "",    HFILL }
+    },
+    { &hf_opcua_transport_len,
+    {  "Message Length",      "transport.len",      FT_UINT32, BASE_DEC,  NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_ver,
+    {  "Version",             "transport.ver",      FT_UINT32, BASE_DEC,  NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_cid,
+    {  "ConnectionId",        "transport.cid",      FT_GUID,   BASE_NONE, NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_lifetime,
+    {  "Lifetime",            "transport.lifetime", FT_UINT32, BASE_DEC,  NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_sbl,
+    {  "SendBufferLength",    "transport.sbl",      FT_UINT32, BASE_DEC,  NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_rbl,
+    {  "ReceiveBufferLength", "transport.rbl",      FT_UINT32, BASE_DEC,  NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_endpoint,
+    {  "EndPoint",            "transport.endpoint", FT_STRING, BASE_NONE, NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_rlifetime,
+    {  "Revised Lifetime",    "transport.rlifetime", FT_UINT32, BASE_DEC,  NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_rsbl,
+    {  "Revised SendBufferLength", "transport.rsbl", FT_UINT32, BASE_DEC,  NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_rrbl,
+    {  "Revised ReceiveBufferLength", "transport.rrbl", FT_UINT32, BASE_DEC,  NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_altendpoint,
+    {  "Alternate EndPoint",  "transport.altendpoint", FT_STRING, BASE_NONE, NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_rqid,
+    {  "RequestId",           "transport.rqid",     FT_UINT32, BASE_DEC,  NULL, 0x0,    "",    HFILL }
+    },
+    { &hf_opcua_transport_status,
+    {  "StatusCode",          "transport.status",   FT_UINT32, BASE_DEC,  NULL, 0x0,    "",    HFILL }
+    }
+};
+
+/** subtree types */
+extern gint ett_opcua_extensionobject;
+
+/** Register transport layer types. */
+void registerTransportLayerTypes(int proto)
+{
+    proto_register_field_array(proto, hf, array_length(hf));
+}
+
+/** helper functions for adding strings,
+  * that are not zero terminated.
+  */
+void addString(proto_tree *tree,  
+               int  hfindex,  
+               tvbuff_t *tvb,  
+               gint  start,  
+               gint  length,  
+               const char *value)
+{
+    char *szValue = ep_alloc(256);
+
+    if (szValue)
+    {
+        if (length > 255) length = 255;
+        /* copy non null terminated string data */
+        strncpy(szValue, value, length);
+        /* set null terminator */
+        szValue[length] = 0;
+
+        proto_tree_add_string(tree, hfindex, tvb, start, length, szValue);
+    }
+}
+
+/* Transport Layer: message parsers */
+void parseHello(proto_tree *tree, tvbuff_t *tvb, gint *pOffset)
+{
+    addString(tree, hf_opcua_transport_sig, tvb, *pOffset, 4, tvb->real_data); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_len, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_ver, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_cid, tvb, *pOffset, 16, TRUE); *pOffset+=16;
+    proto_tree_add_item(tree, hf_opcua_transport_lifetime, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_sbl, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_rbl, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    parseString(tree, tvb, pOffset, hf_opcua_transport_endpoint);
+}
+
+void parseAcknowledge(proto_tree *tree, tvbuff_t *tvb, gint *pOffset)
+{
+    addString(tree, hf_opcua_transport_sig, tvb, *pOffset, 4, tvb->real_data); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_len, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_cid, tvb, *pOffset, 16, TRUE); *pOffset+=16;
+    proto_tree_add_item(tree, hf_opcua_transport_rlifetime, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_rsbl, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_rrbl, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    parseString(tree, tvb, pOffset, hf_opcua_transport_altendpoint);
+}
+
+void parseDisconnect(proto_tree *tree, tvbuff_t *tvb, gint *pOffset)
+{
+    addString(tree, hf_opcua_transport_sig, tvb, *pOffset, 4, tvb->real_data); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_len, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_cid, tvb, *pOffset, 16, TRUE); *pOffset+=16;
+}
+
+void parseData(proto_tree *tree, tvbuff_t *tvb, gint *pOffset)
+{
+    proto_item *ti;
+    proto_tree *encobj_tree;
+    proto_tree *nodeid_tree;
+    int ServiceId = 0;
+
+    addString(tree, hf_opcua_transport_sig, tvb, *pOffset, 4, tvb->real_data); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_len, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_cid, tvb, *pOffset, 16, TRUE); *pOffset+=16;
+    proto_tree_add_item(tree, hf_opcua_transport_rqid, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+
+    /* message data contains the security layer */
+    parseSecurityLayer(tree, tvb, pOffset);
+
+    /* AT THE MOMENT NO SECURITY IS IMPLEMENTED IN UA.
+     * WE CAN JUST JUMP INTO THE APPLICATION LAYER DATA.
+     * THIS WILL CHAHNGE IN THE FUTURE. */
+
+    /* add encodeable object subtree */
+    ti = proto_tree_add_text(tree, tvb, 0, -1, "Message : Encodeable Object");
+    encobj_tree = proto_item_add_subtree(ti, ett_opcua_extensionobject);
+
+    /* add nodeid subtree */
+    ti = proto_tree_add_text(encobj_tree, tvb, 0, -1, "TypeId : ExpandedNodeId");
+    nodeid_tree = proto_item_add_subtree(ti, ett_opcua_nodeid);
+    ServiceId = parseServiceNodeId(nodeid_tree, tvb, pOffset, "NodeId") - 1;
+
+    dispatchService(encobj_tree, tvb, pOffset, ServiceId);
+}
+
+void parseAbort(proto_tree *tree, tvbuff_t *tvb, gint *pOffset)
+{
+    addString(tree, hf_opcua_transport_sig, tvb, *pOffset, 4, tvb->real_data); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_len, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_cid, tvb, *pOffset, 16, TRUE); *pOffset+=16;
+    proto_tree_add_item(tree, hf_opcua_transport_rqid, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+}
+
+void parseError(proto_tree *tree, tvbuff_t *tvb, gint *pOffset)
+{
+    addString(tree, hf_opcua_transport_sig, tvb, *pOffset, 4, tvb->real_data); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_len, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_cid, tvb, *pOffset, 16, TRUE); *pOffset+=16;
+    proto_tree_add_item(tree, hf_opcua_transport_rqid, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+    proto_tree_add_item(tree, hf_opcua_transport_status, tvb, *pOffset, 4, TRUE); *pOffset+=4;
+}