From Thomas Dreibholz

RSerPool protocol stack and four new protocols



git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@18409 f5534014-38df-0310-8fa8-9805f1628bb7

1 files changed, 206 insertions, 0 deletions

diff --git a/epan/dissectors/packet-pingpongprotocol.c b/epan/dissectors/packet-pingpongprotocol.c
new file mode 100644
index 0000000000..1e80b609c4
--- /dev/null
+++ b/epan/dissectors/packet-pingpongprotocol.c
@@ -0,0 +1,206 @@
+/* packet-pingpongprotocol.c
+ * Routines for the Ping Pong Protocol, a test application of the
+ * rsplib RSerPool implementation
+ * http://tdrwww.exp-math.uni-essen.de/dreibholz/rserpool/
+ *
+ * Copyright 2006 by Thomas Dreibholz <dreibh [AT] exp-math.uni-essen.de>
+ *
+ * $Id: x.c 15844 2005-09-17 00:02:31Z x $
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * Copied from README.developer
+ *
+ * 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>
+
+
+#define PINGPONGPROTOCOL_PAYLOAD_PROTOCOL_ID 0x29097602
+
+
+/* Initialize the protocol and registered fields */
+static int proto_pingpongprotocol         = -1;
+static int hf_message_type                = -1;
+static int hf_message_flags               = -1;
+static int hf_message_length              = -1;
+static int hf_ping_messageno              = -1;
+static int hf_ping_data                   = -1;
+static int hf_pong_messageno              = -1;
+static int hf_pong_replyno                = -1;
+static int hf_pong_data                   = -1;
+
+
+/* Initialize the subtree pointers */
+static gint ett_pingpongprotocol = -1;
+
+static void
+dissect_pingpongprotocol_message(tvbuff_t *, packet_info *, proto_tree *);
+
+
+/* Dissectors for messages. This is specific to PingPongProtocol */
+#define MESSAGE_TYPE_LENGTH    1
+#define MESSAGE_FLAGS_LENGTH   1
+#define MESSAGE_LENGTH_LENGTH  2
+
+#define MESSAGE_TYPE_OFFSET    0
+#define MESSAGE_FLAGS_OFFSET   (MESSAGE_TYPE_OFFSET    + MESSAGE_TYPE_LENGTH)
+#define MESSAGE_LENGTH_OFFSET  (MESSAGE_FLAGS_OFFSET   + MESSAGE_FLAGS_LENGTH)
+#define MESSAGE_VALUE_OFFSET   (MESSAGE_LENGTH_OFFSET  + MESSAGE_LENGTH_LENGTH)
+
+
+#define PING_MESSAGENO_LENGTH 8
+
+#define PING_MESSAGENO_OFFSET MESSAGE_VALUE_OFFSET
+#define PING_DATA_OFFSET      (PING_MESSAGENO_OFFSET + PING_MESSAGENO_LENGTH)
+
+#define PONG_MESSAGENO_LENGTH 8
+#define PONG_REPLYNO_LENGTH   8
+
+#define PONG_MESSAGENO_OFFSET  MESSAGE_VALUE_OFFSET
+#define PONG_REPLYNO_OFFSET    (PONG_MESSAGENO_OFFSET + PONG_MESSAGENO_LENGTH)
+#define PONG_DATA_OFFSET       (PONG_REPLYNO_OFFSET + PONG_REPLYNO_LENGTH)
+
+
+#define PINGPONG_PING_MESSAGE_TYPE 0x01
+#define PINGPONG_PONG_MESSAGE_TYPE 0x02
+
+
+
+static const value_string message_type_values[] = {
+  { PINGPONG_PONG_MESSAGE_TYPE, "PingPongProtocol Pong" },
+  { PINGPONG_PING_MESSAGE_TYPE, "PingPongProtocol Ping" },
+  { 0, NULL }
+};
+
+
+static void
+dissect_pingpongprotocol_ping_message(tvbuff_t *message_tvb, proto_tree *message_tree)
+{
+  guint16 ping_data_length;
+
+  proto_tree_add_item(message_tree, hf_ping_messageno, message_tvb, PING_MESSAGENO_OFFSET, PING_MESSAGENO_LENGTH, FALSE);
+
+  ping_data_length = tvb_get_ntohs(message_tvb, MESSAGE_LENGTH_OFFSET) - PING_DATA_OFFSET;
+  if (ping_data_length > 0)
+    proto_tree_add_item(message_tree, hf_ping_data, message_tvb, PING_DATA_OFFSET, ping_data_length, FALSE);
+}
+
+static void
+dissect_pingpongprotocol_pong_message(tvbuff_t *message_tvb, proto_tree *message_tree)
+{
+  guint16 pong_data_length;
+
+  proto_tree_add_item(message_tree, hf_pong_messageno, message_tvb, PONG_MESSAGENO_OFFSET, PONG_MESSAGENO_LENGTH, FALSE);
+  proto_tree_add_item(message_tree, hf_pong_replyno,   message_tvb, PONG_REPLYNO_OFFSET,   PONG_REPLYNO_LENGTH,   FALSE);
+
+  pong_data_length = tvb_get_ntohs(message_tvb, MESSAGE_LENGTH_OFFSET) - PONG_DATA_OFFSET;
+  if (pong_data_length > 0) {
+    proto_tree_add_item(message_tree, hf_pong_data, message_tvb, PONG_DATA_OFFSET, pong_data_length, FALSE);
+  }
+}
+
+
+static void
+dissect_pingpongprotocol_message(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *pingpongprotocol_tree)
+{
+  guint8 type;
+
+  type = tvb_get_guint8(message_tvb, MESSAGE_TYPE_OFFSET);
+  if (pinfo && (check_col(pinfo->cinfo, COL_INFO))) {
+    col_add_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str(type, message_type_values, "Unknown PingPongProtocol type"));
+  }
+  proto_tree_add_item(pingpongprotocol_tree, hf_message_type,   message_tvb, MESSAGE_TYPE_OFFSET,   MESSAGE_TYPE_LENGTH,   FALSE);
+  proto_tree_add_item(pingpongprotocol_tree, hf_message_flags,  message_tvb, MESSAGE_FLAGS_OFFSET,  MESSAGE_FLAGS_LENGTH,  FALSE);
+  proto_tree_add_item(pingpongprotocol_tree, hf_message_length, message_tvb, MESSAGE_LENGTH_OFFSET, MESSAGE_LENGTH_LENGTH, FALSE);
+  switch (type) {
+    case PINGPONG_PING_MESSAGE_TYPE:
+      dissect_pingpongprotocol_ping_message(message_tvb, pingpongprotocol_tree);
+     break;
+    case PINGPONG_PONG_MESSAGE_TYPE:
+      dissect_pingpongprotocol_pong_message(message_tvb, pingpongprotocol_tree);
+     break;
+  }
+}
+
+static int
+dissect_pingpongprotocol(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree)
+{
+  proto_item *pingpongprotocol_item;
+  proto_tree *pingpongprotocol_tree;
+
+  /* pinfo is NULL only if dissect_pingpongprotocol_message is called from dissect_error cause */
+  if (pinfo && (check_col(pinfo->cinfo, COL_PROTOCOL)))
+    col_set_str(pinfo->cinfo, COL_PROTOCOL, "PingPongProtocol");
+
+  /* In the interest of speed, if "tree" is NULL, don't do any work not
+     necessary to generate protocol tree items. */
+  if (tree) {
+    /* create the pingpongprotocol protocol tree */
+    pingpongprotocol_item = proto_tree_add_item(tree, proto_pingpongprotocol, message_tvb, 0, -1, FALSE);
+    pingpongprotocol_tree = proto_item_add_subtree(pingpongprotocol_item, ett_pingpongprotocol);
+  } else {
+    pingpongprotocol_tree = NULL;
+  };
+  /* dissect the message */
+  dissect_pingpongprotocol_message(message_tvb, pinfo, pingpongprotocol_tree);
+  return(TRUE);
+}
+
+/* Register the protocol with Wireshark */
+void
+proto_register_pingpongprotocol(void)
+{
+
+  /* Setup list of header fields */
+  static hf_register_info hf[] = {
+    { &hf_message_type,     { "Type",      "pingpongprotocol.message_type",   FT_UINT8,  BASE_DEC, VALS(message_type_values), 0x0, "", HFILL } },
+    { &hf_message_flags,    { "Flags",     "pingpongprotocol.message_flags",  FT_UINT8,  BASE_DEC, NULL,                      0x0, "", HFILL } },
+    { &hf_message_length,   { "Length",    "pingpongprotocol.message_length", FT_UINT16, BASE_DEC, NULL,                      0x0, "", HFILL } },
+    { &hf_ping_messageno,   { "MessageNo", "pingpongprotocol.ping_messageno", FT_UINT64, BASE_DEC, NULL,                      0x0, "", HFILL } },
+    { &hf_ping_data,        { "Ping_Data", "pingpongprotocol.ping_data",      FT_BYTES,  BASE_HEX, NULL,                      0x0, "", HFILL } },
+    { &hf_pong_messageno,   { "MessageNo", "pingpongprotocol.pong_messageno", FT_UINT64, BASE_DEC, NULL,                      0x0, "", HFILL } },
+    { &hf_pong_replyno,     { "ReplyNo",   "pingpongprotocol.pong_replyno",   FT_UINT64, BASE_DEC, NULL,                      0x0, "", HFILL } },
+    { &hf_pong_data,        { "Pong_Data", "pingpongprotocol.pong_data",      FT_BYTES,  BASE_HEX, NULL,                      0x0, "", HFILL } },
+  };
+
+  /* Setup protocol subtree array */
+  static gint *ett[] = {
+    &ett_pingpongprotocol
+  };
+
+  /* Register the protocol name and description */
+  proto_pingpongprotocol = proto_register_protocol("Ping Pong Protocol", "PingPongProtocol",  "pingpongprotocol");
+
+  /* Required function calls to register the header fields and subtrees used */
+  proto_register_field_array(proto_pingpongprotocol, hf, array_length(hf));
+  proto_register_subtree_array(ett, array_length(ett));
+}
+
+void
+proto_reg_handoff_pingpongprotocol(void)
+{
+  dissector_handle_t pingpongprotocol_handle;
+
+  pingpongprotocol_handle = new_create_dissector_handle(dissect_pingpongprotocol, proto_pingpongprotocol);
+  dissector_add("sctp.ppi", PINGPONGPROTOCOL_PAYLOAD_PROTOCOL_ID, pingpongprotocol_handle);
+}