From Alvaro Vega Garcia:

Support ZIOP and MIOP (specialized CORBA protocols).
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3238

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@27589 f5534014-38df-0310-8fa8-9805f1628bb7

1 files changed, 440 insertions, 0 deletions

diff --git a/epan/dissectors/packet-ziop.c b/epan/dissectors/packet-ziop.c
new file mode 100644
index 0000000000..fedabc307a
--- /dev/null
+++ b/epan/dissectors/packet-ziop.c
@@ -0,0 +1,440 @@
+/* packet-ziop.c
+ * Routines for CORBA ZIOP packet disassembly
+ * Significantly based on packet-giop.c
+ * Copyright 2009 Alvaro Vega Garcia <avega at tid dot es>
+ *
+ * According with GIOP Compression RFP revised submission
+ * OMG mars/2008-12-20
+ *
+ * $Id$
+ *
+ * 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 <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <ctype.h>
+#include <glib.h>
+#include <math.h>
+#ifdef NEED_STRERROR_H
+#include "strerror.h"
+#endif
+
+#include "isprint.h"
+
+#include <epan/packet.h>
+#include <epan/conversation.h>
+
+#include "packet-ziop.h"
+#include "packet-giop.h"
+#include "packet-tcp.h"
+
+#ifdef NEED_G_ASCII_STRCASECMP_H
+#include "g_ascii_strcasecmp.h"
+#endif
+
+/*
+ * Set to 1 for DEBUG output - TODO make this a runtime option
+ */
+
+#define DEBUG   0
+
+/*
+ * ------------------------------------------------------------------------------------------+
+ *                                 Data/Variables/Structs
+ * ------------------------------------------------------------------------------------------+
+ */
+
+
+static int proto_ziop = -1;
+
+/*
+ * (sub)Tree declares
+ */
+
+
+static gint hf_ziop_magic = -1;
+static gint hf_ziop_giop_version_major = -1;
+static gint hf_ziop_giop_version_minor = -1;
+static gint hf_ziop_flags = -1;
+static gint hf_ziop_message_type = -1;
+static gint hf_ziop_message_size = -1;
+static gint hf_ziop_compressor_id = -1;
+static gint hf_ziop_original_length = -1;
+
+static gint ett_ziop_magic = -1;
+static gint ett_ziop_giop_version_major = -1;
+static gint ett_ziop_giop_version_minor = -1;
+static gint ett_ziop_flags = -1;
+static gint ett_ziop_message_type = -1;
+static gint ett_ziop_message_size = -1;
+static gint ett_ziop_compressor_id = -1;
+static gint ett_ziop_original_length = -1;
+
+
+static dissector_handle_t data_handle;
+static dissector_handle_t ziop_handle;
+
+
+static const value_string ziop_compressor_ids[] = {                              
+  { 0, "None" },
+  { 1, "GZIP"},
+  { 2, "PKZIP"},
+  { 3, "BZIP2"},
+  { 4, "ZLIB"},
+  { 5, "LZMA"},
+  { 6, "LZOP"},
+  { 7, "RZIP"},
+  { 8, "7X"},
+  { 9, "XAR"},
+  { 0, NULL}
+};
+
+
+static const value_string giop_message_types[] = {
+	{ 0x0, "Request" },
+	{ 0x1, "Reply"},
+	{ 0x2, "CancelRequest"},
+	{ 0x3, "LocateRequest"},
+	{ 0x4, "LocateReply"},
+	{ 0x5, "CloseConnection"},
+	{ 0x6, "MessageError"},
+	{ 0x7, "Fragment"},
+	{ 0, NULL}
+};
+
+
+
+gboolean ziop_desegment = TRUE;
+
+
+static guint
+get_ziop_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
+{
+
+  ZIOPHeader header;
+  guint message_size;
+  gboolean stream_is_big_endian;
+
+  if ( tvb_memeql(tvb, 0, ZIOP_MAGIC, 4) != 0)
+    return 0;
+
+  tvb_memcpy (tvb, (guint8 *)&header, offset, ZIOP_HEADER_SIZE);
+  
+  stream_is_big_endian =  ((header.flags & 0x1) == 0);
+  
+  if (stream_is_big_endian)
+    message_size = pntohl (&header.message_size);
+  else
+    message_size = pletohl (&header.message_size);
+  
+  return message_size + ZIOP_HEADER_SIZE;
+}
+
+
+static void
+dissect_ziop_tcp (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree) {
+  
+  if ( tvb_memeql(tvb, 0, ZIOP_MAGIC ,4) != 0) {
+
+    if ( tvb_memeql(tvb, 0, GIOP_MAGIC ,4) == 0)
+      dissect_giop(tvb, pinfo, tree);
+
+    return;
+  }
+
+  tcp_dissect_pdus(tvb, pinfo, tree, ziop_desegment, ZIOP_HEADER_SIZE,
+                   get_ziop_pdu_len, dissect_ziop);
+}
+
+
+gboolean
+dissect_ziop_heur (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree) {
+
+  guint tot_len;
+
+  conversation_t *conversation;
+  /* check magic number and version */
+
+
+  tot_len = tvb_length(tvb);
+
+
+  if (tot_len < ZIOP_HEADER_SIZE) /* tot_len < 12 */
+    {
+      /* Not enough data captured to hold the ZIOP header; don't try
+         to interpret it as GIOP. */
+      return FALSE;
+    }
+  if ( tvb_memeql(tvb, 0, ZIOP_MAGIC, 4) != 0) {
+    return FALSE;
+  }
+
+  if ( pinfo->ptype == PT_TCP )
+    {
+      /*
+       * Make the ZIOP dissector the dissector for this conversation.
+       *
+       * If this isn't the first time this packet has been processed,
+       * we've already done this work, so we don't need to do it
+       * again.
+       */
+      if (!pinfo->fd->flags.visited)
+        {
+          conversation = find_conversation(pinfo->fd->num, &pinfo->src,
+              &pinfo->dst, pinfo->ptype, pinfo->srcport, pinfo->destport, 0);
+          if (conversation == NULL)
+            {
+              conversation = conversation_new(pinfo->fd->num, &pinfo->src,
+                  &pinfo->dst, pinfo->ptype, pinfo->srcport, pinfo->destport, 0);
+            }
+          /* Set dissector */
+          conversation_set_dissector(conversation, ziop_handle);
+	}
+      dissect_ziop_tcp (tvb, pinfo, tree);
+    }
+  else
+    {
+      dissect_ziop (tvb, pinfo, tree);
+    }
+  return TRUE;
+
+}
+
+
+
+
+
+
+
+
+
+
+
+/* Main entry point */
+void dissect_ziop (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree) {
+  guint offset = 0;
+  ZIOPHeader header;
+  CompressionData compression_data;
+  tvbuff_t *ziop_header_tvb;
+  tvbuff_t *compression_data_tvb;
+  tvbuff_t *payload_tvb;
+
+  proto_tree *clnp_tree = NULL;
+  proto_item *ti;
+
+  gboolean stream_is_big_endian;
+  guint32 message_size;
+  guint32 original_len;
+  guint16 compressor_id;
+
+  ziop_header_tvb = tvb_new_subset (tvb, 0, ZIOP_HEADER_SIZE, -1);
+  tvb_memcpy (ziop_header_tvb, (guint8 *)&header, 0, ZIOP_HEADER_SIZE );
+
+
+  compression_data_tvb = tvb_new_subset (tvb, ZIOP_HEADER_SIZE, 8 , -1);
+  tvb_memcpy (compression_data_tvb, (guint8 *)&compression_data, 0, 8 );
+
+  payload_tvb = tvb_new_subset (tvb, ZIOP_HEADER_SIZE + 8, -1, -1);
+
+
+  if (check_col (pinfo->cinfo, COL_PROTOCOL)) {
+    col_set_str (pinfo->cinfo, COL_PROTOCOL, ZIOP_MAGIC);
+  }
+
+  /* Clear out stuff in the info column */
+  if (check_col(pinfo->cinfo, COL_INFO)) {
+    col_clear(pinfo->cinfo, COL_INFO);
+  }
+
+
+
+  if ( (header.giop_version_major != 1) || 
+       (header.giop_version_minor != 2) ) /* > 2?? */
+    {
+      if (check_col (pinfo->cinfo, COL_INFO))
+	{
+	  col_add_fstr (pinfo->cinfo, COL_INFO, "Version %u.%u",
+			header.giop_version_major, header.giop_version_minor);
+	}
+      if (tree)
+	{
+	  ti = proto_tree_add_item (tree, proto_ziop, tvb, 0, -1, FALSE);
+	  clnp_tree = proto_item_add_subtree (ti, ett_ziop_giop_version_major);
+	  proto_tree_add_text (clnp_tree, ziop_header_tvb, 0, -1,
+			       "Version %u.%u not supported",
+			       header.giop_version_major,
+			       header.giop_version_minor);
+	}
+      call_dissector(data_handle, tvb, pinfo, tree);
+      return;
+    }
+
+  stream_is_big_endian = ((header.flags & 0x01) == 0);
+
+  if (stream_is_big_endian) {
+    message_size = pntohl (&header.message_size);
+    compressor_id = pntohs (&compression_data.compressor_id);
+    original_len = pntohl (&compression_data.original_length);
+  }
+  else {
+    message_size = pletohl (&header.message_size);
+    compressor_id = pletohs (&compression_data.compressor_id);
+    original_len = pletohl (&compression_data.original_length);
+  }
+
+
+
+  if (check_col (pinfo->cinfo, COL_INFO))
+  {
+      col_add_fstr (pinfo->cinfo, COL_INFO, "ZIOP %u.%u %s", 
+                    header.giop_version_major, 
+                    header.giop_version_minor,
+                    val_to_str(header.message_type, giop_message_types,
+                    	       "Unknown message type (0x%02x)")
+                    );
+  }
+
+  if (tree)
+    {
+      ti = proto_tree_add_item (tree, proto_ziop, tvb, 0, -1, FALSE);
+
+      clnp_tree = proto_item_add_subtree (ti, ett_ziop_magic);
+      proto_tree_add_text (clnp_tree, ziop_header_tvb, offset, 4,
+			   "Magic number: %s", ZIOP_MAGIC);
+      offset += 4;
+      clnp_tree = proto_item_add_subtree (ti, ett_ziop_giop_version_major);
+      proto_tree_add_text (clnp_tree, ziop_header_tvb, offset, 1,
+			   "Version major: %u", header.giop_version_major);
+      offset++;
+      clnp_tree = proto_item_add_subtree (ti, ett_ziop_giop_version_minor);
+      proto_tree_add_text (clnp_tree, ziop_header_tvb, offset, 1,
+			   "Version minor: %u", header.giop_version_minor);
+      offset++;
+      clnp_tree = proto_item_add_subtree (ti, ett_ziop_flags);
+      proto_tree_add_text (clnp_tree, ziop_header_tvb, offset, 1,
+			   "Flags: 0x%02x (%s)", header.flags, 
+                           (stream_is_big_endian) ? "big-endian" : "little-endian");
+      offset++;
+      clnp_tree = proto_item_add_subtree (ti, ett_ziop_message_type);
+      proto_tree_add_text (clnp_tree, ziop_header_tvb, offset, 1,
+			   "Type: %s", 
+                           val_to_str(header.message_type, giop_message_types, 
+                                      "(0x%x)")
+                           );
+      offset++;
+      clnp_tree = proto_item_add_subtree (ti, ett_ziop_message_size);
+      proto_tree_add_text (clnp_tree, ziop_header_tvb, offset, 4,
+			   "Size: %d", message_size);
+      offset = 0;
+      clnp_tree = proto_item_add_subtree (ti, ett_ziop_compressor_id);
+      proto_tree_add_text (clnp_tree, compression_data_tvb, offset, 2,
+			   "Compressor Id: %s" , 
+                           val_to_str(compressor_id, ziop_compressor_ids, 
+                                      "(0x%x)")
+                           );
+      offset += 4;
+      clnp_tree = proto_item_add_subtree (ti, ett_ziop_original_length);
+      proto_tree_add_text (clnp_tree, compression_data_tvb, offset, 4,
+			   "Original length:  %d", original_len);
+
+
+    }
+
+
+}
+
+
+void proto_register_ziop (void) {
+
+
+  /* A header field is something you can search/filter on.
+   * 
+   * We create a structure to register our fields. It consists of an
+   * array of hf_register_info structures, each of which are of the format
+   * {&(field id), {name, abbrev, type, display, strings, bitmask, blurb, HFILL}}.
+   */
+  static hf_register_info hf[] = {
+    { &hf_ziop_magic,
+      { "Header magic", "ziop.magic", FT_UINT32, BASE_DEC, NULL, 0x0,
+        "ZIOPHeader magic", HFILL }},
+    { &hf_ziop_giop_version_major,
+      { "Header major version", "ziop.giop_version_major", FT_UINT8, BASE_OCT, NULL, 0x0,
+        "ZIOPHeader giop_version", HFILL }},
+    { &hf_ziop_giop_version_minor,
+      { "Header minor version", "ziop.giop_version_minor", FT_UINT8, BASE_OCT, NULL, 0x0,
+        "ZIOPHeader giop_version", HFILL }},
+    { &hf_ziop_flags,
+      { "Header flags", "ziop.flags", FT_UINT8, BASE_OCT, NULL, 0x0,
+        "ZIOPHeader flags", HFILL }},
+    { &hf_ziop_message_type,
+      { "Header type", "ziop.message_type", FT_UINT8, BASE_OCT, NULL, 0x0,
+        "ZIOPHeader message_type", HFILL }},
+    { &hf_ziop_message_size,
+      { "Header size", "ziop.message_size",  FT_UINT32, BASE_DEC, NULL, 0x0,
+        "ZIOPHeader message_size", HFILL }},
+    { &hf_ziop_compressor_id,
+      { "Header compressor id", "ziop.compressor_id", FT_UINT16, BASE_DEC, NULL, 0x0,
+        "ZIOPHeader compressor_id", HFILL }},
+    { &hf_ziop_original_length,
+      { "Header original length", "ziop.original_length", FT_UINT32, BASE_DEC, NULL, 0x0,
+        "ZIOP original_length", HFILL }},
+  };
+
+
+  static gint *ett[] = {
+    &ett_ziop_magic,
+    &ett_ziop_giop_version_major,
+    &ett_ziop_giop_version_minor,
+    &ett_ziop_flags,
+    &ett_ziop_message_type,
+    &ett_ziop_message_size,
+    &ett_ziop_compressor_id,
+    &ett_ziop_original_length
+  };
+
+  proto_ziop = proto_register_protocol("Zipped Inter-ORB Protocol", "ZIOP",
+				       "ziop");
+  proto_register_field_array (proto_ziop, hf, array_length (ett));
+  proto_register_subtree_array (ett, array_length (ett));
+
+  register_dissector("ziop", dissect_ziop, proto_ziop);
+
+}
+
+
+void proto_reg_handoff_ziop (void) {
+
+  static gboolean initialized = FALSE;
+
+  data_handle = find_dissector("data");
+
+  ziop_handle = create_dissector_handle(dissect_ziop_tcp, proto_ziop);
+  heur_dissector_add("tcp", dissect_ziop_heur, proto_ziop);
+
+  dissector_add_handle("udp.port", ziop_handle); 
+  initialized = TRUE;
+  
+}