From Dinesh Dutt:

- Decoders for the few remaining FC protocols not included in my first
  patch. Included in this list are decoders for FC-CT (common transport),
  Name Server (dNS), Fabric Configuration Server (FCS) and Zone Server
  (FZS).

- Decoder for MDS Debug Port Adapter. MDS Debug Port Adapter (internal
  name was   Boardwalk and this is the file name) is a piece of hardware
  that can be purchased with Cisco's MDS Fibre Channel switches that
  converts FC frames into Ethernet frames.  One end is connected to a
  port on a FC switch and the other end is connected to a FE/GE Ethernet
  port.  The decoder included here decodes the encapsulation header that
  carries information such as SOF/EOF of FC frames.

svn path=/trunk/; revision=6919

1 files changed, 280 insertions, 0 deletions

diff --git a/packet-fcct.c b/packet-fcct.c
new file mode 100644
index 0000000000..05b3da5719
--- /dev/null
+++ b/packet-fcct.c
@@ -0,0 +1,280 @@
+/* packet-fcct.c
+ * Routines for FC Common Transport Protocol (used by GS3 services)
+ * Copyright 2001, Dinesh G Dutt <ddutt@andiamo.com>
+ *
+ * $Id: packet-fcct.c,v 1.1 2003/01/14 01:17:44 guy Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * Copied from WHATEVER_FILE_YOU_USED (where "WHATEVER_FILE_YOU_USED"
+ * is a dissector file; if you just copied this from README.developer,
+ * don't bother with the "Copied from" - you don't even need to put
+ * in a "Copied from" if you copied an existing dissector, especially
+ * if the bulk of the code in the new dissector is your code)
+ * 
+ * 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 <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 <glib.h>
+
+#ifdef NEED_SNPRINTF_H
+# include "snprintf.h"
+#endif
+
+#include <epan/packet.h>
+#include "etypes.h"
+#include "packet-fc.h"
+#include "packet-fcct.h"
+
+/* Initialize the protocol and registered fields */
+static int proto_fcct           = -1;
+static int hf_fcct_revision     = -1;
+static int hf_fcct_inid         = -1;
+static int hf_fcct_gstype       = -1;
+static int hf_fcct_gssubtype    = -1;
+static int hf_fcct_options      = -1;
+static int hf_fcct_server       = -1; /* derived field */
+
+/* Extended preamble fields */
+static int hf_fcct_ext_said     = -1;
+static int hf_fcct_ext_tid      = -1;
+static int hf_fcct_ext_reqname  = -1;
+static int hf_fcct_ext_tstamp   = -1;
+static int hf_fcct_ext_authblk  = -1;
+
+/* Initialize the subtree pointers */
+static gint ett_fcct = -1;
+static gint ett_fcct_ext = -1;  /* for the extended header */
+
+static dissector_table_t fcct_gserver_table;
+static dissector_handle_t data_handle;
+
+static guint8
+get_gs_server (guint8 gstype, guint8 gssubtype)
+{
+    switch (gstype) {
+    case FCCT_GSTYPE_KEYSVC:
+        return FCCT_GSRVR_KS;
+    case FCCT_GSTYPE_ALIASSVC:
+        if (gssubtype == FCCT_GSSUBTYPE_AS)
+            return FCCT_GSRVR_AS;
+        return FCCT_GSRVR_UNKNOWN;
+    case FCCT_GSTYPE_MGMTSVC:
+        if (gssubtype == FCCT_GSSUBTYPE_FCS)
+            return FCCT_GSRVR_FCS;
+        else if (gssubtype == FCCT_GSSUBTYPE_UNS)
+            return FCCT_GSRVR_UNS;
+        else if (gssubtype == FCCT_GSSUBTYPE_FZS)
+            return FCCT_GSRVR_FZS;
+        else return FCCT_GSRVR_UNKNOWN;
+    case FCCT_GSTYPE_TIMESVC:
+        if (gssubtype == FCCT_GSSUBTYPE_TS)
+            return FCCT_GSRVR_TS;
+        return FCCT_GSRVR_UNKNOWN;
+    case FCCT_GSTYPE_DIRSVC:
+        if (gssubtype == FCCT_GSSUBTYPE_DNS)
+            return FCCT_GSRVR_DNS;
+        else if (gssubtype == FCCT_GSSUBTYPE_IP)
+            return FCCT_GSRVR_IP;
+        return FCCT_GSRVR_UNKNOWN;
+    default:
+        return FCCT_GSRVR_UNKNOWN;
+    }
+}
+
+/* Code to actually dissect the packets */
+static void
+dissect_fcct (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+
+/* Set up structures needed to add the protocol subtree and manage it */
+    proto_item *ti;
+    proto_tree *fcct_tree;
+    tvbuff_t *next_tvb;
+    int in_id,
+        offset = 0;
+    guint8 server;
+    fc_ct_preamble cthdr;
+
+    /* Make entries in Protocol column and Info column on summary display */
+    if (check_col(pinfo->cinfo, COL_PROTOCOL)) 
+        col_set_str(pinfo->cinfo, COL_PROTOCOL, "FC_CT");
+    
+    /*
+      cthdr.revision = tvb_get_guint8 (tvb, offset++);
+      cthdr.in_id = tvb_get_ntoh24 (tvb, offset);
+      offset += 3;
+      
+      cthdr.gstype = tvb_get_guint8 (tvb, offset++);
+      cthdr.options = tvb_get_guint8 (tvb, offset++);
+    */
+    tvb_memcpy (tvb, (guint8 *)&cthdr, offset, FCCT_PRMBL_SIZE);
+    cthdr.revision = tvb_get_guint8 (tvb, offset++);
+    cthdr.in_id = tvb_get_ntoh24 (tvb, offset);
+    cthdr.opcode = ntohs (cthdr.opcode);
+    cthdr.maxres_size = ntohs (cthdr.maxres_size);
+
+    if (check_col (pinfo->cinfo, COL_INFO)) {
+        if (cthdr.opcode < FCCT_MSG_REQ_MAX) {
+            col_append_str (pinfo->cinfo, COL_INFO, " Request");
+        }
+        else if (cthdr.opcode == FCCT_MSG_ACC) {
+            col_append_str (pinfo->cinfo, COL_INFO, " Accept");
+        }
+        else if (cthdr.opcode == FCCT_MSG_RJT) {
+            col_append_fstr (pinfo->cinfo, COL_INFO, " Reject (%s)",
+                             val_to_str (cthdr.rjt_code, fc_ct_rjt_code_vals, "0x%x")); 
+        }
+        else {
+            col_append_str (pinfo->cinfo, COL_INFO, " Reserved");
+        }
+    }
+    
+    in_id = cthdr.in_id;
+    in_id = htonl (in_id) >> 8;
+
+    /* Determine server */
+    server = get_gs_server (cthdr.gstype, cthdr.gssubtype);
+    
+    if (tree) {
+        offset = 0;
+        ti = proto_tree_add_protocol_format (tree, proto_fcct, tvb, 0, FCCT_PRMBL_SIZE,
+                                             "FC_CT");
+        fcct_tree = proto_item_add_subtree (ti, ett_fcct);
+
+        proto_tree_add_item (fcct_tree, hf_fcct_revision, tvb, offset++,
+                             sizeof (guint8), 0);
+        proto_tree_add_string (fcct_tree, hf_fcct_inid, tvb, offset, 3,
+                               fc_to_str ((guint8 *)&in_id));
+        offset += 3; /* sizeof FC address */
+        
+        proto_tree_add_item (fcct_tree, hf_fcct_gstype, tvb, offset++,
+                             sizeof (guint8), 0);
+        proto_tree_add_item (fcct_tree, hf_fcct_gssubtype, tvb, offset,
+                             sizeof (guint8), 0);
+        proto_tree_add_uint (fcct_tree, hf_fcct_server, tvb, offset++, 1,
+                             server);
+        proto_tree_add_item (fcct_tree, hf_fcct_options, tvb, offset++,
+                             sizeof (guint8), 0);
+
+    }
+    /* We do not change the starting offset for the next protocol in the
+     * chain since the fc_ct header is common to the sub-protocols.
+     */
+    next_tvb = tvb_new_subset (tvb, 0, -1, -1);
+    if (!dissector_try_port (fcct_gserver_table, server, next_tvb, pinfo,
+                             tree)) {
+        call_dissector (data_handle, next_tvb, pinfo, 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_fcct(void)
+{                 
+
+/* Setup list of header fields  See Section 1.6.1 for details*/
+    static hf_register_info hf[] = {
+        { &hf_fcct_revision,
+          {"Revision", "fcct.revision", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL}}, 
+        { &hf_fcct_inid,
+          {"IN_ID", "fcct.in_id", FT_STRING, BASE_HEX, NULL, 0x0, "", HFILL}},
+        { &hf_fcct_gstype,
+          {"GS Type", "fcct.gstype", FT_UINT8, BASE_HEX, VALS(fc_ct_gstype_vals),
+           0x0, "", HFILL}},
+        { &hf_fcct_gssubtype,
+          {"GS Subtype", "fcct.gssubtype", FT_UINT8, BASE_HEX, NULL, 0x0,
+           "", HFILL}},
+        { &hf_fcct_server,
+          {"Server", "fcct.server", FT_UINT8, BASE_HEX,
+           VALS (fc_ct_gsserver_vals), 0x0,
+           "Derived from GS Type & Subtype fields", HFILL}},
+        { &hf_fcct_options,
+          {"Options", "fcct.options", FT_UINT8, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcct_ext_said,
+          {"Auth SAID", "fcct.ext_said", FT_UINT32, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcct_ext_tid,
+          {"Transaction ID", "fcct.ext_tid", FT_UINT32, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcct_ext_reqname,
+          {"Requestor Port Name", "fcct_ext_reqnm", FT_BYTES, BASE_HEX, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcct_ext_tstamp,
+          {"Timestamp", "fcct_ext_tstamp", FT_BYTES, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcct_ext_authblk,
+          {"Auth Hash Blk", "fcct_ext_authblk", FT_BYTES, BASE_HEX, NULL, 0x0,
+           "", HFILL}},
+    };
+
+    /* Setup protocol subtree array */
+    static gint *ett[] = {
+        &ett_fcct,
+        &ett_fcct_ext,
+    };
+
+    /* Register the protocol name and description */
+    proto_fcct = proto_register_protocol("Fibre Channel Common Transport", "FC_CT", "fcct");
+
+    /* Required function calls to register the header fields and subtrees used */
+    proto_register_field_array(proto_fcct, hf, array_length(hf));
+    proto_register_subtree_array(ett, array_length(ett));
+
+    fcct_gserver_table = register_dissector_table ("fcct.server",
+                                                   "Server",
+                                                   FT_UINT8, BASE_HEX);
+}
+
+/* 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_fcct (void)
+{
+    dissector_handle_t fcct_handle;
+
+    fcct_handle = create_dissector_handle (dissect_fcct, proto_fcct);
+    dissector_add("fc.ftype", FC_FTYPE_FCCT, fcct_handle);
+
+    data_handle = find_dissector ("data");
+}
+
+