From Dinesh Dutt: Add Fibre Channel support, including FCIP, Basic FC

header, Extended Link Service, Interswitch Link Service, FCP, and IPFC.

svn path=/trunk/; revision=6757

1 files changed, 1978 insertions, 0 deletions

diff --git a/packet-fcels.c b/packet-fcels.c
new file mode 100644
index 0000000000..0c57bb10d3
--- /dev/null
+++ b/packet-fcels.c
@@ -0,0 +1,1978 @@
+/* packet-fcels.c
+ * Routines for FC Extended Link Services
+ * Copyright 2001, Dinesh G Dutt <ddutt@cisco.com>
+ *
+ * $Id: packet-fcels.c,v 1.1 2002/12/08 02:32:17 gerald 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.
+ */
+
+/*
+ * TODO Still (Complete compliance with FC-MI):
+ * - Decode RNID, RLIR
+ */
+
+#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 <epan/conversation.h>
+#include "etypes.h"
+#include "packet-fc.h"
+#include "packet-fcels.h"
+
+#define FC_ELS_RPLY 0
+#define FC_ELS_REQ  1
+
+/* Initialize the protocol and registered fields */
+static int proto_fcels               = -1;
+static int hf_fcels_opcode           = -1;
+static int hf_fcels_rjtcode          = -1;
+static int hf_fcels_rjtdetcode       = -1;
+static int hf_fcels_vnduniq          = -1;
+static int hf_fcels_b2b              = -1;
+static int hf_fcels_cmnfeatures      = -1;
+static int hf_fcels_bbscnum          = -1;
+static int hf_fcels_rcvsize          = -1;
+static int hf_fcels_maxconseq        = -1;
+static int hf_fcels_reloffset        = -1;
+static int hf_fcels_edtov            = -1;
+static int hf_fcels_npname           = -1;
+static int hf_fcels_fnname           = -1;
+static int hf_fcels_cls1param        = -1;
+static int hf_fcels_cls2param        = -1;
+static int hf_fcels_cls3param        = -1;
+static int hf_fcels_cls4param        = -1;
+static int hf_fcels_vendorvers       = -1;
+static int hf_fcels_svcavail         = -1;
+static int hf_fcels_clsflags         = -1;
+static int hf_fcels_initctl          = -1;
+static int hf_fcels_rcptctl          = -1;
+static int hf_fcels_clsrcvsize       = -1;
+static int hf_fcels_conseq           = -1;
+static int hf_fcels_e2e              = -1;
+static int hf_fcels_openseq          = -1;
+static int hf_fcels_nportid          = -1;
+static int hf_fcels_oxid             = -1;
+static int hf_fcels_rxid             = -1;
+static int hf_fcels_recovqual        = -1;
+static int hf_fcels_fabricaddr       = -1;
+static int hf_fcels_fabricpname      = -1;
+static int hf_fcels_failedrcvr       = -1;
+static int hf_fcels_flacompliance    = -1;
+static int hf_fcels_loopstate        = -1;
+static int hf_fcels_publicloop_bmap  = -1;
+static int hf_fcels_pvtloop_bmap     = -1;
+static int hf_fcels_alpa_map         = -1;
+static int hf_fcels_scrregn          = -1;
+static int hf_fcels_farp_matchcodept = -1;
+static int hf_fcels_farp_respaction  = -1;
+static int hf_fcels_resportid        = -1;
+static int hf_fcels_respname         = -1;
+static int hf_fcels_respnname        = -1;
+static int hf_fcels_reqipaddr        = -1;
+static int hf_fcels_respipaddr       = -1;
+static int hf_fcels_hardaddr         = -1;
+static int hf_fcels_rps_flag         = -1;
+static int hf_fcels_rps_portnum      = -1;
+static int hf_fcels_rps_portstatus   = -1;
+static int hf_fcels_rnft_fc4type     = -1;
+static int hf_fcels_rscn_evqual      = -1;
+static int hf_fcels_rscn_addrfmt     = -1;
+static int hf_fcels_rscn_domain      = -1;
+static int hf_fcels_rscn_area        = -1;
+static int hf_fcels_rscn_port        = -1;
+static int hf_fcels_nodeidfmt = -1;
+static int hf_fcels_spidlen = -1;
+static int hf_fcels_vendoruniq = -1;
+static int hf_fcels_vendorsp = -1;
+static int hf_fcels_asstype = -1;
+static int hf_fcels_physport = -1;
+static int hf_fcels_attnodes = -1;
+static int hf_fcels_nodemgmt = -1;
+static int hf_fcels_ipvers = -1;
+static int hf_fcels_tcpport = -1;
+static int hf_fcels_ip = -1;
+
+static gint ett_fcels;           
+static gint ett_fcels_lsrjt;
+static gint ett_fcels_acc;
+static gint ett_fcels_logi;
+static gint ett_fcels_logi_cmnsvc;
+static gint ett_fcels_logi_clssvc;
+static gint ett_fcels_logo;
+static gint ett_fcels_abtx;
+static gint ett_fcels_rsi;
+static gint ett_fcels_rrq;
+static gint ett_fcels_prli;
+static gint ett_fcels_prli_svcpg;
+static gint ett_fcels_adisc;
+static gint ett_fcels_farp;
+static gint ett_fcels_rps;
+static gint ett_fcels_rpl;
+static gint ett_fcels_rplpb;
+static gint ett_fcels_fan;
+static gint ett_fcels_rscn;
+static gint ett_fcels_rscn_rec;
+static gint ett_fcels_scr;
+static gint ett_fcels_rnft;
+static gint ett_fcels_rnft_fc4;
+static gint ett_fcels_lsts;
+static gint ett_fcels_rnid;
+static gint ett_fcels_rlir;
+static gint ett_fcels_lirr;
+static gint ett_fcels_srl;
+static gint ett_fcels_rpsc;         
+
+typedef struct _fcels_conv_key {
+    guint32 conv_idx;
+} fcels_conv_key_t;
+
+typedef struct _fcels_conv_data {
+    guint32 opcode;
+} fcels_conv_data_t;
+
+GHashTable *fcels_req_hash = NULL;
+GMemChunk *fcels_req_keys = NULL;
+GMemChunk *fcels_req_vals = NULL;
+guint32 fcels_init_count = 25;
+
+static dissector_handle_t data_handle;
+
+/*
+ * Hash Functions
+ */
+static gint
+fcels_equal(gconstpointer v, gconstpointer w)
+{
+  fcels_conv_key_t *v1 = (fcels_conv_key_t *)v;
+  fcels_conv_key_t *v2 = (fcels_conv_key_t *)w;
+
+  return (v1->conv_idx == v2->conv_idx);
+}
+
+static guint
+fcels_hash (gconstpointer v)
+{
+	fcels_conv_key_t *key = (fcels_conv_key_t *)v;
+	guint val;
+
+	val = key->conv_idx;
+
+	return val;
+}
+
+/*
+ * Protocol initialization
+ */
+static void
+fcels_init_protocol(void)
+{
+	if (fcels_req_keys)
+            g_mem_chunk_destroy(fcels_req_keys);
+	if (fcels_req_vals)
+            g_mem_chunk_destroy(fcels_req_vals);
+	if (fcels_req_hash)
+            g_hash_table_destroy(fcels_req_hash);
+
+	fcels_req_hash = g_hash_table_new(fcels_hash, fcels_equal);
+	fcels_req_keys = g_mem_chunk_new ("fcels_req_keys",
+                                          sizeof(fcels_conv_key_t),
+                                          fcels_init_count *
+                                          sizeof(fcels_conv_key_t),
+                                          G_ALLOC_AND_FREE);
+	fcels_req_vals = g_mem_chunk_new ("fcels_req_vals",
+                                          sizeof(fcels_conv_data_t),
+                                          fcels_init_count *
+                                          sizeof(fcels_conv_data_t),
+                                          G_ALLOC_AND_FREE);
+}
+
+static void
+construct_cmnsvc_string (guint16 flag, gchar *flagstr, guint8 opcode)
+{
+    int stroff = 0;
+    gchar punc[3];
+
+    punc[0] = '\0';
+    
+    if ((opcode == FC_ELS_PLOGI) || (opcode == FC_ELS_PDISC)) {
+        if (flag & 0x8000) {
+            strcpy (flagstr, "Cont. Incr. Offset Supported");
+            stroff += 28;
+            strcpy (punc, ", ");
+        }
+        if (flag & 0x4000) {
+            sprintf (&flagstr[stroff], "%sRRO Supported", punc);
+            stroff += 15;
+            strcpy (punc, ", ");
+        }
+    }
+    
+    if (flag & 0x2000) {
+        sprintf (flagstr, "%sValid Vendor Version Level", punc);
+        strcpy (punc, ", ");
+        stroff += 28;
+    }
+    
+    if (flag & 0x0800) {
+        sprintf (&flagstr[stroff], "%sNormal B2B Credit Mgmt", punc);
+        strcpy (punc, ", ");
+        stroff += 24;
+    }
+    else {
+        sprintf (&flagstr[stroff], "%sAlt B2B Credit Mgmt", punc);
+        strcpy (punc, ", ");
+        stroff += 21;
+    }
+
+    if ((opcode == FC_ELS_PLOGI) || (opcode == FC_ELS_PDISC)) {
+        if (flag & 0x0400) {
+            strcpy (&flagstr[stroff], ", E_D_TOV Resolution in ns");
+        }
+        else {
+            strcpy (&flagstr[stroff], ", E_D_TOV Resolution in ms");
+        }
+        stroff += 26;
+
+        if (flag & 0x0040) {
+            strcpy (&flagstr[stroff], ", Simplex Dedicated Conn Supported");
+            stroff += 34;
+        }
+    }
+    
+    if (flag & 0x0010) {
+        strcpy (&flagstr[stroff], ", Clk Sync Prim Capable");
+        stroff += 23;
+    }
+    if (flag & 0x0004) {
+        strcpy (&flagstr[stroff], ", DHD Capable");
+        stroff += 13;
+    }
+
+    if ((opcode == FC_ELS_PLOGI) || (opcode == FC_ELS_PDISC)) {
+        if (flag & 0x0002) {
+            strcpy (&flagstr[stroff], ", Cont. Incr SEQCNT rules");
+            stroff += 25;
+        }
+        else {
+            strcpy (&flagstr[stroff], ", Normal SEQCNT rules");
+            stroff += 21;
+        }
+    }
+
+    if (flag & 0x0001) {
+        sprintf (&flagstr[stroff], ", Payload Len=256 bytes");
+    }
+    else {
+        sprintf (&flagstr[stroff], ", Payload Len=116 bytes");
+    }
+}
+
+/* The next 3 routines decode only Class 2 & Class 3 relevant bits */
+static void
+construct_clssvc_string (guint16 flag, gchar *flagstr, guint8 opcode)
+{
+    int stroff = 0;
+
+    if (!(flag & 0x8000)) {
+        strcpy (flagstr, "Class Not Supported");
+        return;
+    }
+
+    if ((opcode == FC_ELS_FLOGI) || (opcode == FC_ELS_FDISC)) {
+        if (flag & 0x0800) {
+            strcpy (flagstr, "Seq Delivery Requested");
+            stroff += 22;
+        }
+        else {
+            strcpy (flagstr, "Out of Order Delivery Requested");
+            stroff += 31;
+        }
+    }
+
+    if (flag & 0x0080) {
+        strcpy (&flagstr[stroff], ", Priority/preemption supported");
+        stroff += 31;
+    }
+
+    if ((opcode == FC_ELS_PLOGI) || (opcode == FC_ELS_PDISC)) {
+        if (flag & 0x0040) {
+            strcpy (&flagstr[stroff], "Non-zero CS_CTL Tolerated");
+        }
+        else {
+            strcpy (&flagstr[stroff], "Non-zero CS_CTL Maybe Tolerated");
+        }
+    }
+}
+
+static void
+construct_initctl_string (guint16 flag, gchar *flagstr, guint8 opcode)
+{
+    int stroff = 0;
+    
+    if ((opcode == FC_ELS_PLOGI) || (opcode == FC_ELS_PDISC)) {
+        switch ((flag & 0x3000)) {
+        case 0x0:
+            strcpy (flagstr, "Initial P_A Not Supported");
+            stroff += 25;
+            break;
+        case 0x1000:
+            strcpy (flagstr, "Initial P_A Supported");
+            stroff += 21;
+            break;
+        case 0x3000:
+            strcpy (flagstr, "Initial P_A Required & Supported");
+            stroff += 32;
+            break;
+        }
+
+        if (flag & 0x0800) {
+            strcpy (&flagstr[stroff], ", ACK0 Capable");
+            stroff += 14;
+        }
+
+        if (flag & 0x0200) {
+            strcpy (&flagstr[stroff], ", ACK Generation Assistance Avail");
+            stroff += 33;
+        }
+        if (flag & 0x0010) {
+            strcpy (&flagstr[stroff], ", Clock Sync ELS Supported");
+        }
+    }
+    else {
+        if (flag & 0x0010) {
+            strcpy (&flagstr[stroff], "Clock Sync ELS Supported");
+        }
+    }
+}
+
+static void
+construct_rcptctl_string (guint16 flag, gchar *flagstr, guint8 opcode)
+{
+    int stroff = 0;
+    gchar punc[3];
+
+    punc[0] = '\0';
+
+    if ((opcode == FC_ELS_PLOGI) || (opcode == FC_ELS_PDISC)) {
+        if (flag & 0x8000) {
+            strcpy (flagstr, "ACK_0 Supported");
+            stroff += 15;
+        }
+        else {
+            strcpy (flagstr, "ACK_0 Not Supported");
+            stroff += 19;
+        }
+
+        if (flag & 0x2000) {
+            strcpy (&flagstr[stroff], ", X_ID Interlock Reqd");
+            stroff += 21;
+        }
+
+        switch (flag & 0x1800) {
+        case 0x0:
+            strcpy (&flagstr[stroff], ", Error Policy: Discard Policy only");
+            stroff += 43;
+            break;
+        case 0x1000:
+            strcpy (&flagstr[stroff], ", Error Policy: Both discard and process policies supported");
+            stroff += 52;
+            break;
+        case 0x0800:
+            strcpy (&flagstr[stroff], ", Error Policy: Reserved");
+            stroff += 41;
+            break;
+        case 0x1800:
+            strcpy (&flagstr[stroff], ", Error Policy: Reserved");
+            stroff += 52;
+            break;
+        }
+
+        switch (flag & 0x0030) {
+        case 0:
+            strcpy (&flagstr[stroff], ", 1 Category/Seq");
+            stroff += 16;
+            break;
+        case 0x0010:
+            strcpy (&flagstr[stroff], ", 2 Categories/Seq");
+            stroff += 18;
+            break;
+        case 0x0030:
+            strcpy (&flagstr[stroff], ", More than 2 Categories/Seq");
+            stroff += 28;
+            break;
+        }
+
+        if (flag & 0x0008) {
+            strcpy (&flagstr[stroff], ", Clk Sync ELS Supported");
+        }
+    }
+    else {
+        if (flag & 0x0008) {
+            strcpy (&flagstr[stroff], "Clk Sync ELS Supported");
+        }
+    }
+}
+
+
+static void
+dissect_fcels_logi (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                    proto_item *ti, guint8 opcode)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 0,
+        svcvld = 0,
+        class;
+    proto_tree *logi_tree, *cmnsvc_tree;
+    proto_item *subti;
+    gchar flagstr[256];
+    guint16 flag;
+    
+    if (tree) {
+        logi_tree = proto_item_add_subtree (ti, ett_fcels_logi);
+        proto_tree_add_item (logi_tree, hf_fcels_opcode, tvb, offset, 1, 0);
+        
+        subti = proto_tree_add_text (logi_tree, tvb, offset+4, 16,
+                                     "Common Svc Parameters");
+        cmnsvc_tree = proto_item_add_subtree (subti, ett_fcels_logi_cmnsvc);
+        proto_tree_add_item (cmnsvc_tree, hf_fcels_b2b, tvb, offset+6, 2, 0);
+        flag = tvb_get_ntohs (tvb, offset+8);
+        
+        if (flag & 0x0001) {
+            svcvld = 1;
+        }
+
+        construct_cmnsvc_string (flag, flagstr, opcode);
+        proto_tree_add_uint_format (cmnsvc_tree, hf_fcels_cmnfeatures, tvb,
+                                    offset+8, 2, flag,
+                                    "Common Svc Parameters: 0x%x (%s)",
+                                    flag, flagstr);
+        
+        proto_tree_add_item (cmnsvc_tree, hf_fcels_bbscnum, tvb, offset+10, 1, 0);
+        proto_tree_add_item (cmnsvc_tree, hf_fcels_rcvsize, tvb, offset+10, 2, 0);
+        proto_tree_add_item (cmnsvc_tree, hf_fcels_maxconseq, tvb, offset+12, 2, 0);
+        proto_tree_add_item (cmnsvc_tree, hf_fcels_reloffset, tvb, offset+14, 2, 0);
+        proto_tree_add_item (cmnsvc_tree, hf_fcels_edtov, tvb, offset+16, 4, 0);
+        proto_tree_add_string (cmnsvc_tree, hf_fcels_npname, tvb, offset+20, 8,
+                               fcwwn_to_str (tvb_get_ptr (tvb, offset+20, 8)));
+        proto_tree_add_string (cmnsvc_tree, hf_fcels_fnname, tvb, offset+28, 8,
+                               fcwwn_to_str (tvb_get_ptr (tvb, offset+28, 8)));
+
+        /* Add subtree for class paramters */
+        offset = 36;
+        for (class = 1; class < 5; class++) {
+            subti = proto_tree_add_text (logi_tree, tvb, offset, 16,
+                                         "Class %d Svc Parameters", class);
+            cmnsvc_tree = proto_item_add_subtree (subti, ett_fcels_logi_cmnsvc);
+
+            flag = tvb_get_ntohs (tvb, offset);
+            construct_clssvc_string (flag, flagstr, opcode);
+            proto_tree_add_uint_format (cmnsvc_tree, hf_fcels_clsflags, tvb,
+                                        offset, 2, flag,
+                                        "Service Options: 0x%x(%s)", flag,
+                                        flagstr);
+            if (flag & 0x8000) {
+                flag = tvb_get_ntohs (tvb, offset+2);
+                construct_initctl_string (flag, flagstr, opcode);
+                proto_tree_add_uint_format (cmnsvc_tree, hf_fcels_initctl, tvb,
+                                            offset+2, 2, flag,
+                                            "Initiator Control: 0x%x(%s)", flag,
+                                            flagstr);
+
+                flag = tvb_get_ntohs (tvb, offset+4);
+                construct_rcptctl_string (flag, flagstr, opcode);
+                proto_tree_add_uint_format (cmnsvc_tree, hf_fcels_initctl, tvb,
+                                            offset+4, 2, flag,
+                                            "Recipient Control: 0x%x(%s)", flag,
+                                            flagstr);
+
+                proto_tree_add_item (cmnsvc_tree, hf_fcels_clsrcvsize, tvb,
+                                     offset+6, 2, 0);
+                proto_tree_add_item (cmnsvc_tree, hf_fcels_conseq, tvb,
+                                     offset+8, 2, 0);
+                proto_tree_add_item (cmnsvc_tree, hf_fcels_e2e, tvb,
+                                     offset+10, 2, 0);
+                proto_tree_add_item (cmnsvc_tree, hf_fcels_openseq, tvb,
+                                     offset+12, 2, 0);
+            }
+            offset += 16;
+        }
+        proto_tree_add_item (logi_tree, hf_fcels_vendorvers, tvb, offset, 16, 0);
+        if (svcvld) {
+            proto_tree_add_item (logi_tree, hf_fcels_svcavail, tvb, offset+32, 8, 0);
+        }
+    }
+}
+
+static void
+dissect_fcels_plogi (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+                     guint8 isreq _U_, proto_item *ti)
+{
+    dissect_fcels_logi (tvb, pinfo, tree, ti, FC_ELS_PLOGI);
+}
+
+static void
+dissect_fcels_flogi (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+                     guint8 isreq _U_, proto_item *ti)
+{
+    dissect_fcels_logi (tvb, pinfo, tree, ti, FC_ELS_FLOGI);
+}
+
+static void
+dissect_fcels_logout (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                      guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 5;             /* bypass opcode+rsvd field */
+    proto_tree *logo_tree;
+
+    if (tree) {
+        logo_tree = proto_item_add_subtree (ti, ett_fcels_logo);
+
+        proto_tree_add_item (logo_tree, hf_fcels_opcode, tvb, offset-5, 1, 0);
+
+        if (!isreq) {
+            /* Accept has no payload */
+            return;
+        }
+        
+        proto_tree_add_string (logo_tree, hf_fcels_nportid, tvb, offset, 3,
+                               fc_to_str (tvb_get_ptr (tvb, offset, 3)));
+        proto_tree_add_string (logo_tree, hf_fcels_npname, tvb, offset+3, 6,
+                               fcwwn_to_str (tvb_get_ptr (tvb, offset+3, 6)));
+    }
+}
+
+static void
+dissect_fcels_abtx (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                    guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 0;
+    proto_tree *abtx_tree;
+
+    if (tree) {
+        abtx_tree = proto_item_add_subtree (ti, ett_fcels_abtx);
+
+        proto_tree_add_item (abtx_tree, hf_fcels_opcode, tvb, offset, 1, 0);
+
+        if (!isreq) {
+            return;
+        }
+
+        proto_tree_add_text (abtx_tree, tvb, offset+4, 1,
+                             "Recovery Qualifier Status: 0x%x",
+                             tvb_get_guint8 (tvb, offset+4));
+        proto_tree_add_string (abtx_tree, hf_fcels_nportid, tvb, offset+5, 3,
+                               fc_to_str (tvb_get_ptr (tvb, offset+5, 3)));
+        proto_tree_add_item (abtx_tree, hf_fcels_oxid, tvb, offset+8, 2, 0);
+        proto_tree_add_item (abtx_tree, hf_fcels_rxid, tvb, offset+10, 2, 0);
+    }
+}
+
+static void
+dissect_fcels_rsi (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                   guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 4;
+    proto_tree *rsi_tree;
+
+    if (tree) {
+        rsi_tree = proto_item_add_subtree (ti, ett_fcels_rsi);
+
+        proto_tree_add_item (rsi_tree, hf_fcels_opcode, tvb, offset-4, 1, 0);
+        if (!isreq)
+            return;
+
+        proto_tree_add_item (rsi_tree, hf_fcels_recovqual, tvb, offset, 1, 0);
+        proto_tree_add_string (rsi_tree, hf_fcels_nportid, tvb, offset+1, 3,
+                               fc_to_str (tvb_get_ptr (tvb, offset+1, 3)));
+        proto_tree_add_item (rsi_tree, hf_fcels_rxid, tvb, offset+4, 2, 0);
+        proto_tree_add_item (rsi_tree, hf_fcels_oxid, tvb, offset+6, 2, 0);
+    }
+}
+
+static void
+dissect_fcels_rrq (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                   guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 0;
+    proto_tree *rrq_tree;
+
+    if (tree) {
+        rrq_tree = proto_item_add_subtree (ti, ett_fcels_rrq);
+
+        proto_tree_add_item (rrq_tree, hf_fcels_opcode, tvb, offset, 1, 0);
+        if (!isreq)
+            return;
+
+        proto_tree_add_string (rrq_tree, hf_fcels_nportid, tvb, offset+5, 3,
+                               fc_to_str (tvb_get_ptr (tvb, offset+5, 3)));
+        proto_tree_add_item (rrq_tree, hf_fcels_oxid, tvb, offset+8, 2, 0);
+        proto_tree_add_item (rrq_tree, hf_fcels_rxid, tvb, offset+10, 2, 0);
+    }
+}
+
+static void
+dissect_fcels_pdisc (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+                     guint8 isreq _U_, proto_item *ti)
+{
+    dissect_fcels_logi (tvb, pinfo, tree, ti, FC_ELS_PDISC);
+}
+
+static void
+dissect_fcels_fdisc (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+                     guint8 isreq _U_, proto_item *ti)
+{
+    dissect_fcels_logi (tvb, pinfo, tree, ti, FC_ELS_FDISC);
+}
+
+static void
+dissect_fcels_adisc (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                     guint8 isreq _U_, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 5;
+    proto_tree *adisc_tree;
+
+    if (tree) {
+        adisc_tree = proto_item_add_subtree (ti, ett_fcels_adisc);
+
+        proto_tree_add_item (adisc_tree, hf_fcels_opcode, tvb, offset-5, 1, 0);
+
+        proto_tree_add_string (adisc_tree, hf_fcels_hardaddr, tvb, offset, 3,
+                               fc_to_str (tvb_get_ptr (tvb, offset, 3)));
+        proto_tree_add_string (adisc_tree, hf_fcels_npname, tvb, offset+3, 8,
+                               fcwwn_to_str (tvb_get_ptr (tvb, offset+3, 8)));
+        proto_tree_add_string (adisc_tree, hf_fcels_fnname, tvb, offset+11, 8,
+                               fcwwn_to_str (tvb_get_ptr (tvb, offset+11, 8)));
+        proto_tree_add_string (adisc_tree, hf_fcels_nportid, tvb, offset+20, 3,
+                               fc_to_str (tvb_get_ptr (tvb, offset+20, 3)));
+    }
+
+}
+
+static void
+dissect_fcels_farp (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                    proto_item *ti)
+{
+    int offset = 4;
+    proto_tree *farp_tree;
+    
+    if (tree) {
+        farp_tree = proto_item_add_subtree (ti, ett_fcels_farp);
+
+        proto_tree_add_item (farp_tree, hf_fcels_opcode, tvb, offset-4, 1, 0);
+
+        proto_tree_add_item (farp_tree, hf_fcels_farp_matchcodept,
+                             tvb, offset, 1, 0);
+        proto_tree_add_string (farp_tree, hf_fcels_nportid, tvb, offset+1,
+                               3, fc_to_str (tvb_get_ptr (tvb, offset+1, 3)));
+        proto_tree_add_item (farp_tree, hf_fcels_farp_respaction, tvb,
+                             offset+4, 1, 0);
+        proto_tree_add_string (farp_tree, hf_fcels_resportid, tvb, offset+5,
+                               3, fc_to_str (tvb_get_ptr (tvb, offset+5, 3)));
+        proto_tree_add_string (farp_tree, hf_fcels_npname, tvb, offset+8,
+                               8, fcwwn_to_str (tvb_get_ptr (tvb, offset+8, 8)));
+        proto_tree_add_string (farp_tree, hf_fcels_fnname, tvb, offset+16,
+                               8, fcwwn_to_str (tvb_get_ptr (tvb, offset+16, 8)));
+        proto_tree_add_string (farp_tree, hf_fcels_respname, tvb, offset+24,
+                               8, fcwwn_to_str (tvb_get_ptr (tvb, offset+24, 8)));
+        proto_tree_add_string (farp_tree, hf_fcels_respnname, tvb, offset+32,
+                               8, fcwwn_to_str (tvb_get_ptr (tvb, offset+32, 8)));
+        proto_tree_add_item (farp_tree, hf_fcels_reqipaddr, tvb, offset+40,
+                             16, 0);
+        proto_tree_add_item (farp_tree, hf_fcels_respipaddr, tvb, offset+56,
+                             16, 0);
+    }
+}
+
+static void
+dissect_fcels_farp_req (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+                        guint8 isreq _U_, proto_item *ti)
+{
+    dissect_fcels_farp (tvb, pinfo, tree, ti);
+}
+
+static void
+dissect_fcels_farp_rply (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+                         guint8 isreq _U_, proto_item *ti)
+{
+    dissect_fcels_farp (tvb, pinfo, tree, ti);
+}
+
+static void
+dissect_fcels_rps (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                   guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 3;
+    guint8 flag;
+    proto_tree *rps_tree;
+
+    flag = tvb_get_guint8 (tvb, offset);
+
+    if (tree) {
+        rps_tree = proto_item_add_subtree (ti, ett_fcels_rps);
+
+        if (isreq) {
+            proto_tree_add_item (rps_tree, hf_fcels_rps_flag, tvb, offset, 1, 0);
+
+            proto_tree_add_item (rps_tree, hf_fcels_opcode, tvb, offset-3, 1, 0);
+
+            if (flag & 0x2) {
+                proto_tree_add_string (rps_tree, hf_fcels_npname, tvb, offset+1,
+                                       8, fcwwn_to_str (tvb_get_ptr (tvb,
+                                                                     offset+1,
+                                                                     8)));
+            }
+            else if (flag & 0x1) {
+                proto_tree_add_item (rps_tree, hf_fcels_rps_portnum, tvb,
+                                     offset+5, 3, 0);
+            }
+        }
+        else {
+            proto_tree_add_item (rps_tree, hf_fcels_rps_flag, tvb, offset, 1, 0);
+            proto_tree_add_item (rps_tree, hf_fcels_rps_portstatus, tvb,
+                                 offset+3, 2, 0);
+            /* Next 6 fields are from Link Error Status Block (LESB) */
+            proto_tree_add_text (rps_tree, tvb, offset+5, 4,
+                                 "Link Failure Count: %d",
+                                 tvb_get_ntohl (tvb, offset+5));
+            proto_tree_add_text (rps_tree, tvb, offset+9, 4,
+                                 "Loss of Sync Count: %d",
+                                 tvb_get_ntohl (tvb, offset+9));
+            proto_tree_add_text (rps_tree, tvb, offset+13, 4,
+                                 "Loss of Signal Count: %d",
+                                 tvb_get_ntohl (tvb, offset+13));
+            proto_tree_add_text (rps_tree, tvb, offset+17, 4,
+                                 "Primitive Seq Protocol Err: %d",
+                                 tvb_get_ntohl (tvb, offset+17));
+            proto_tree_add_text (rps_tree, tvb, offset+21, 4,
+                                 "Invalid Xmission Word: %d",
+                                 tvb_get_ntohl (tvb, offset+21));
+            proto_tree_add_text (rps_tree, tvb, offset+25, 4,
+                                 "Invalid CRC Count: %d",
+                                 tvb_get_ntohl (tvb, offset+25));
+            if (flag & 0x01) {
+                /* Next 6 fields are from L_Port Extension field */
+                proto_tree_add_text (rps_tree, tvb, offset+31, 2,
+                                     "L_Port Status: 0x%x",
+                                     tvb_get_ntohs (tvb, offset+31));
+                proto_tree_add_text (rps_tree, tvb, offset+36, 1,
+                                     "LIP AL_PS: 0x%x",
+                                     tvb_get_guint8 (tvb, offset+36));
+                proto_tree_add_text (rps_tree, tvb, offset+37, 4,
+                                     "LIP F7 Initiated Count: %d",
+                                     tvb_get_ntohl (tvb, offset+37));
+                proto_tree_add_text (rps_tree, tvb, offset+41, 4,
+                                     "LIP F7 Received Count: %d",
+                                     tvb_get_ntohl (tvb, offset+41));
+                proto_tree_add_text (rps_tree, tvb, offset+45, 4,
+                                     "LIP F8 Initiated Count: %d",
+                                     tvb_get_ntohl (tvb, offset+45));
+                proto_tree_add_text (rps_tree, tvb, offset+49, 4,
+                                     "LIP F8 Received Count: %d",
+                                     tvb_get_ntohl (tvb, offset+49));
+                proto_tree_add_text (rps_tree, tvb, offset+53, 4,
+                                     "LIP Reset Initiated Count: %d",
+                                     tvb_get_ntohl (tvb, offset+53));
+                proto_tree_add_text (rps_tree, tvb, offset+57, 4,
+                                     "LIP Reset Received Count: %d",
+                                     tvb_get_ntohl (tvb, offset+57));
+            }
+        }
+    }
+}
+
+static void
+dissect_fcels_rpl (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                   guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 0;
+    proto_tree *rpl_tree, *pb_tree;
+    proto_item *subti;
+    int loop;
+
+    if (tree) {
+        rpl_tree = proto_item_add_subtree (ti, ett_fcels_rpl);
+
+        proto_tree_add_item (rpl_tree, hf_fcels_opcode, tvb, offset, 1, 0);
+
+        if (isreq) {
+            proto_tree_add_text (rpl_tree, tvb, offset+6, 2,
+                                 "Max Size: %d",
+                                 tvb_get_ntohs (tvb, offset+6));
+            proto_tree_add_text (rpl_tree, tvb, offset+9, 3,
+                                 "Index: %d",
+                                 tvb_get_ntoh24 (tvb, offset+9));
+        }
+        else {
+            /* Reply consists of a header and a number of port blocks */
+            proto_tree_add_text (rpl_tree, tvb, offset+2, 2, 
+                                 "Payload Length: %d",
+                                 tvb_get_ntohs (tvb, offset+2));
+            proto_tree_add_text (rpl_tree, tvb, offset+5, 3, 
+                                 "List Length: %d",
+                                 tvb_get_ntoh24 (tvb, offset+5));
+            proto_tree_add_text (rpl_tree, tvb, offset+9, 3,
+                                 "Index of I Port Block: %d",
+                                 tvb_get_ntoh24 (tvb, offset+9));
+            offset = 12;
+            /* The following loop is for dissecting the port blocks */
+            for (loop = tvb_get_ntoh24 (tvb, 5); loop > 0; loop--) {
+                subti = proto_tree_add_text (rpl_tree, tvb, offset+12, 16,
+                                             "Port Block %d", loop);
+                pb_tree = proto_item_add_subtree (subti, ett_fcels_rplpb);
+
+                proto_tree_add_text (pb_tree, tvb, offset, 4,
+                                     "Physical Port #: %d",
+                                     tvb_get_ntohl (tvb, offset));
+                proto_tree_add_text (pb_tree, tvb, offset+5, 3,
+                                     "Port Identifier: %s",
+                                     fc_to_str (tvb_get_ptr (tvb, offset+5, 3)));
+                proto_tree_add_text (pb_tree, tvb, offset+8, 8,
+                                     "Port Name: %s",
+                                     fcwwn_to_str (tvb_get_ptr (tvb, offset+8, 8)));
+                offset += 16;
+            }
+        }
+    }
+}
+
+static void
+dissect_fcels_fan (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                   guint8 isreq _U_, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 5;
+    proto_tree *fan_tree;
+
+    if (tree) {
+        fan_tree = proto_item_add_subtree (ti, ett_fcels_fan);
+
+        proto_tree_add_item (fan_tree, hf_fcels_opcode, tvb, offset-5, 1, 0);
+
+        proto_tree_add_string (fan_tree, hf_fcels_fabricaddr, tvb, offset, 3,
+                               fc_to_str (tvb_get_ptr (tvb, offset, 3)));
+        proto_tree_add_string (fan_tree, hf_fcels_fabricpname, tvb, offset+3,
+                               8, fcwwn_to_str (tvb_get_ptr (tvb, offset, 8)));
+        proto_tree_add_string (fan_tree, hf_fcels_fnname, tvb, offset+11, 8,
+                               fcwwn_to_str (tvb_get_ptr (tvb, offset+11, 8)));
+    }
+}
+
+static void
+dissect_fcels_rscn (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                    guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 1;
+    proto_tree *rscn_tree, *rectree;
+    proto_item *subti;
+    int numrec, plen, i;
+
+    if (tree) {
+        rscn_tree = proto_item_add_subtree (ti, ett_fcels_rscn);
+
+        proto_tree_add_item (rscn_tree, hf_fcels_opcode, tvb, offset-1, 1, 0);
+        if (!isreq)
+            return;
+
+        proto_tree_add_text (rscn_tree, tvb, offset, 1,
+                             "Page Len: %d", tvb_get_guint8 (tvb, offset));
+        plen = tvb_get_ntohs (tvb, offset+1);
+        proto_tree_add_text (rscn_tree, tvb, offset+1, 2,
+                             "Payload Len: %d", plen);
+        numrec = (plen - 4)/4;
+        
+        offset = 4;
+        for (i = 0; i < numrec; i++) {
+            subti = proto_tree_add_text (rscn_tree, tvb, offset, 4,
+                                         "Affected N_Port Page %d", i);
+            rectree = proto_item_add_subtree (subti, ett_fcels_rscn_rec);
+
+            proto_tree_add_item (rectree, hf_fcels_rscn_evqual, tvb, offset,
+                                 1, 0);
+            proto_tree_add_item (rectree, hf_fcels_rscn_addrfmt, tvb, offset,
+                                 1, 0);
+            proto_tree_add_item (rectree, hf_fcels_rscn_domain, tvb, offset+1,
+                                 1, 0);
+            proto_tree_add_item (rectree, hf_fcels_rscn_area, tvb, offset+2,
+                                 1, 0);
+            proto_tree_add_item (rectree, hf_fcels_rscn_port, tvb, offset+3,
+                                 1, 0);
+            offset += 4;
+        }
+    }
+}
+
+static void
+dissect_fcels_scr (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                   guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 7;
+    proto_tree *scr_tree;
+
+    if (tree) {
+        scr_tree = proto_item_add_subtree (ti, ett_fcels_scr);
+        proto_tree_add_item (scr_tree, hf_fcels_opcode, tvb, offset-7, 1, 0);
+        if (isreq)
+            proto_tree_add_item (scr_tree, hf_fcels_scrregn, tvb, offset, 1, 0);
+    }
+}
+
+static void
+dissect_fcels_rnft (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                    guint8 isreq, proto_item *ti)
+{
+    int offset = 0;
+    guint16 numrec, i;
+    proto_tree *rnft_tree, *fc4_tree;
+    proto_item *subti;
+
+    if (tree) {
+        rnft_tree = proto_item_add_subtree (ti, ett_fcels_rnft);
+
+        proto_tree_add_item (rnft_tree, hf_fcels_opcode, tvb, offset, 1, 0);
+
+        if (isreq) {
+            proto_tree_add_text (rnft_tree, tvb, offset+2, 2,
+                                 "Max Size: %d", tvb_get_ntohs (tvb, offset+2));
+            proto_tree_add_text (rnft_tree, tvb, offset+7, 1,
+                                 "Index: %d", tvb_get_guint8 (tvb, offset+7));
+        }
+        else {
+            proto_tree_add_text (rnft_tree, tvb, offset+2, 2,
+                                 "Payload Len: %d",
+                                 tvb_get_ntohs (tvb, offset+2));
+            numrec = tvb_get_guint8 (tvb, offset+5);
+            proto_tree_add_text (rnft_tree, tvb, offset+5, 1,
+                                 "List Length: %d", numrec);
+            proto_tree_add_text (rnft_tree, tvb, offset+7, 1,
+                                 "Index of First Rec in List: %d",
+                                 tvb_get_guint8 (tvb, offset+7));
+            offset = 8;
+            for (i = 0; i < numrec; i++) {
+                subti = proto_tree_add_text (rnft_tree, tvb, offset, 4,
+                                             "FC-4 Entry #%d", i);
+                fc4_tree = proto_item_add_subtree (subti, ett_fcels_rnft_fc4);
+
+                proto_tree_add_item (fc4_tree, hf_fcels_rnft_fc4type, tvb,
+                                     offset, 1, 0);
+                proto_tree_add_text (fc4_tree, tvb, offset+1, 3,
+                                     "FC-4 Qualifier 0x%x",
+                                     tvb_get_ntoh24 (tvb, offset+1));
+                offset += 4;
+            }
+        }
+    }
+}
+
+static void
+dissect_fcels_lsts (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                    guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 5;
+    proto_tree *lsts_tree;
+
+    if (tree) {
+        lsts_tree = proto_item_add_subtree (ti, ett_fcels_lsts);
+
+        proto_tree_add_item (lsts_tree, hf_fcels_opcode, tvb, offset-5, 1, 0);
+        if (isreq) {
+            /* In case of LSTS, the reply has the meat */
+            return;
+        }
+        proto_tree_add_item (lsts_tree, hf_fcels_failedrcvr, tvb, offset, 1, 0);
+        proto_tree_add_item (lsts_tree, hf_fcels_flacompliance, tvb, offset+1,
+                             1, 0);
+        proto_tree_add_item (lsts_tree, hf_fcels_loopstate, tvb, offset+2, 1, 0);
+        proto_tree_add_item (lsts_tree, hf_fcels_publicloop_bmap, tvb, offset+3,
+                             16, 0);
+        proto_tree_add_item (lsts_tree, hf_fcels_pvtloop_bmap, tvb, offset+19,
+                             16, 0);
+        proto_tree_add_item (lsts_tree, hf_fcels_alpa_map, tvb, offset+35,
+                             128, 0);
+    }
+}
+
+static void
+dissect_fcels_prlilo_payload (tvbuff_t *tvb, packet_info *pinfo _U_,
+                              guint8 isreq, proto_item *ti, guint8 opcode)
+{
+    int offset = 0,
+        stroff = 0;
+    guint8 type;
+    proto_tree *prli_tree, *svcpg_tree;
+    int num_svcpg, payload_len, i, flag;
+    proto_item *subti;
+    gchar flagstr[100];
+
+    /* We're assuming that we're invoked only if tree is not NULL i.e.
+     * we don't do the usual "if (tree)" check here, the caller must.
+     */
+    prli_tree = proto_item_add_subtree (ti, ett_fcels_prli);
+
+    proto_tree_add_item (prli_tree, hf_fcels_opcode, tvb, offset, 1, 0);
+
+    proto_tree_add_text (prli_tree, tvb, offset+1, 1,
+                         "Page Length: %d",
+                         tvb_get_guint8 (tvb, offset+1));
+    payload_len = tvb_get_ntohs (tvb, offset+2);
+    proto_tree_add_text (prli_tree, tvb, offset+2, 2,
+                         "Payload Length: %d", payload_len);
+    num_svcpg = payload_len/16;
+
+    offset = 4;
+    for (i = 0; i < num_svcpg; i++) {
+        subti = proto_tree_add_text (prli_tree, tvb, offset, 16,
+                                     "Service Parameter Page %d", i);
+        svcpg_tree = proto_item_add_subtree (subti, ett_fcels_prli_svcpg);
+
+        type = tvb_get_guint8 (tvb, offset);
+        proto_tree_add_text (svcpg_tree, tvb, offset, 1,
+                             "TYPE: %s",
+                             val_to_str (type,
+                                         fc_prli_fc4_val, "0x%x"));
+        proto_tree_add_text (svcpg_tree, tvb, offset+1, 1,
+                             "TYPE Code Extension: %d",
+                             tvb_get_guint8 (tvb, offset+1));
+
+        flag = tvb_get_guint8 (tvb, offset+2);
+        flagstr[0] = '\0';
+        stroff = 0;
+        if (opcode != FC_ELS_TPRLO) {
+            if (flag & 0x80) {
+                strcpy (flagstr, "Orig PA Valid, ");
+                stroff += 15;
+            }
+            if (flag & 0x40) {
+                strcpy (&flagstr[stroff], "Resp PA Valid, ");
+                stroff += 15;
+            }
+
+            if (opcode == FC_ELS_PRLI) {
+                if (!isreq) {
+                    if (flag & 0x20) {
+                        strcpy (&flagstr[stroff], "Image Pair Estd., ");
+                        stroff += 18;
+                    }
+                    else {
+                        strcpy (&flagstr[stroff], "Image Pair Not Estd., ");
+                        stroff += 22;
+                    }
+                }
+                else {
+                    if (flag & 0x20) {
+                        strcpy (&flagstr[stroff], "Est Image Pair & Exchg Svc Param, ");
+                        stroff += 34;
+                    }
+                    else {
+                        strcpy (&flagstr[stroff], "Exchange Svc Param Only, ");
+                        stroff += 25;
+                    }
+                }
+            }
+        }
+        else { /* Assuming opcode is TPRLO */
+            if (flag & 0x80) {
+                strcpy (flagstr, "3rd Party Orig PA Valid, ");
+                stroff += 25;
+            }
+            if (flag & 0x40) {
+                strcpy (&flagstr[stroff], "Resp PA Valid, ");
+                stroff += 15;
+            }
+            if (flag & 0x20) {
+                strcpy (&flagstr[stroff], "3rd Party N_Port Valid, ");
+                stroff += 24;
+            }
+            if (flag & 0x10) {
+                strcpy (&flagstr[stroff], "Global PRLO, ");
+                stroff += 13;
+            }
+        }
+
+        proto_tree_add_text (svcpg_tree, tvb, offset+2, 1,
+                             "Flags: %s", flagstr);
+        if (!isreq && (opcode != FC_ELS_TPRLO)) {
+            /* This is valid only for ACC */
+            proto_tree_add_text (svcpg_tree, tvb, offset+2, 1,
+                                 "Response Code: 0x%x",
+                                 (tvb_get_guint8 (tvb, offset+2) & 0x0F));
+        }
+        if (opcode != FC_ELS_TPRLO) {
+            proto_tree_add_text (svcpg_tree, tvb, offset+4, 4,
+                                 "Originator PA: 0x%x",
+                                 tvb_get_ntohl (tvb, offset+4));
+        }
+        else {
+            proto_tree_add_text (svcpg_tree, tvb, offset+4, 4,
+                                 "3rd Party Originator PA: 0x%x",
+                                 tvb_get_ntohl (tvb, offset+4));
+        }
+        proto_tree_add_text (svcpg_tree, tvb, offset+8, 4,
+                             "Responder PA: 0x%x",
+                             tvb_get_ntohl (tvb, offset+8));
+
+        if (type == FC_TYPE_SCSI) {
+            flag = tvb_get_ntohs (tvb, offset+14);
+            flagstr[0] = '\0';
+            stroff = 0;
+            
+            if (flag & 0x2000) {
+                if (isreq) {
+                    strcpy (flagstr, "Task Retry Ident Req, ");
+                    stroff += 22;
+                }
+                else {
+                    strcpy (flagstr, "Task Retry Ident Acc, ");
+                    stroff += 22;
+                }
+            }
+            if (flag & 0x1000) {
+                strcpy (&flagstr[stroff], "Retry Possible, ");
+                stroff += 16;
+            }
+            if (flag & 0x0080) {
+                strcpy (&flagstr[stroff], "Confirmed Comp, ");
+                stroff += 16;
+            }
+            if (flag & 0x0040) {
+                strcpy (&flagstr[stroff], "Data Overlay, ");
+                stroff += 14;
+            }
+            if (flag & 0x0020) {
+                strcpy (&flagstr[stroff], "Initiator, ");
+                stroff += 11;
+            }
+            if (flag & 0x0010) {
+                strcpy (&flagstr[stroff], "Target, ");
+                stroff += 8;
+            }
+            if (flag & 0x0002) {
+                strcpy (&flagstr[stroff], "Rd Xfer_Rdy Dis, ");
+                stroff += 17;
+            }
+            if (flag & 0x0001) {
+                strcpy (&flagstr[stroff], "Wr Xfer_Rdy Dis");
+                stroff += 15;
+            }
+            proto_tree_add_text (svcpg_tree, tvb, offset+12, 4,
+                                 "FCP Flags: 0x%x (%s)", flag,
+                                 flagstr);
+        }
+        else if ((opcode == FC_ELS_PRLI) && !isreq) {
+            proto_tree_add_text (svcpg_tree, tvb, offset+12, 4,
+                                 "Service Parameter Response: 0x%x",
+                                 tvb_get_ntohl (tvb, offset+12));
+        }
+        else if (opcode == FC_ELS_TPRLO) {
+            proto_tree_add_text (svcpg_tree, tvb, offset+13, 3,
+                                 "3rd Party N_Port Id: %s",
+                                 fc_to_str (tvb_get_ptr (tvb, offset+13, 3)));
+        }
+    }
+}
+
+static void
+dissect_fcels_prli (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+                    guint8 isreq, proto_item *ti)
+{
+    if (tree) {
+        dissect_fcels_prlilo_payload (tvb, pinfo, isreq, ti, FC_ELS_PRLI);
+    }
+}
+
+static void
+dissect_fcels_prlo (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+                    guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    if (tree) {
+        dissect_fcels_prlilo_payload (tvb, pinfo, isreq, ti, FC_ELS_PRLO);
+    }
+}
+
+static void
+dissect_fcels_tprlo (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+                     guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+
+    if (tree) {
+        dissect_fcels_prlilo_payload (tvb, pinfo, isreq, ti, FC_ELS_TPRLO);
+    }
+}
+
+static void
+dissect_fcels_lirr (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                    guint8 isreq _U_, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 4;
+    proto_tree *lirr_tree;
+    guint8 lirr_fmt;
+
+    if (tree) {
+        lirr_tree = proto_item_add_subtree (ti, ett_fcels_lirr);
+
+        proto_tree_add_item (lirr_tree, hf_fcels_opcode, tvb, offset-4, 1, 0);
+
+        proto_tree_add_text (lirr_tree, tvb, offset, 1,
+                             "Regn. Function: %s",
+                             val_to_str (tvb_get_guint8 (tvb, offset),
+                                         fc_els_lirr_regfunc_val,
+                                         "Reserved (0x%x)"));
+        lirr_fmt = tvb_get_guint8 (tvb, offset+1);
+        if (!lirr_fmt) {
+            /* This scheme is resorted to because the value 0 has a string in
+             * the value_string that is not what we want displayed here.
+             */
+            proto_tree_add_text (lirr_tree, tvb, offset, 1,
+                                 "Regn. Format: Common Format");
+        }
+        else {
+            proto_tree_add_text (lirr_tree, tvb, offset, 1,
+                                 "Regn. Format: %s",
+                                 val_to_str (lirr_fmt, fc_fc4_val, "0x%x"));
+        }
+    }
+}
+
+static void
+dissect_fcels_srl (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                   guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 4,
+        flag = 0;
+    proto_tree *srl_tree;
+
+    if (tree) {
+        srl_tree = proto_item_add_subtree (ti, ett_fcels_srl);
+
+        proto_tree_add_item (srl_tree, hf_fcels_opcode, tvb, offset-4, 1, 0);
+        if (!isreq)
+            return;
+
+        flag = tvb_get_guint8 (tvb, offset);
+        if (flag & 0x1) {
+            proto_tree_add_text (srl_tree, tvb, offset, 1,
+                                 "Flag: Scan only specified FL Port");
+        }
+        else {
+            proto_tree_add_text (srl_tree, tvb, offset, 1,
+                                 "Flag: Scan all loops in domain");
+        }
+        proto_tree_add_text (srl_tree, tvb, offset+1, 3,
+                             "FL_Port Addr: %s",
+                             fc_to_str (tvb_get_ptr (tvb, offset+1, 3)));
+    }
+}
+
+static void
+dissect_fcels_rpsc (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                    guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 2;
+    int num_entries, i, cap;
+    gchar speed_str[40];
+    int stroff = 0;
+    proto_tree *rpsc_tree;
+
+    if (tree) {
+        rpsc_tree = proto_item_add_subtree (ti, ett_fcels_rpsc);
+
+        proto_tree_add_item (rpsc_tree, hf_fcels_opcode, tvb, offset-2, 1, 0);
+        if (isreq)
+            return;
+
+        num_entries = tvb_get_ntohs (tvb, offset);
+        proto_tree_add_text (rpsc_tree, tvb, offset, 2,
+                             "Number of Entries: %d", num_entries);
+        offset = 4;
+        for (i = 0; i < num_entries; i++) {
+            cap = tvb_get_ntohs (tvb, offset);
+            speed_str[0] = '\0';
+            stroff = 0;
+            if (cap & 0x8000) {
+                strcpy (speed_str, "1,");
+                stroff += 2;
+            }
+            if (cap & 0x4000) {
+                strcpy (speed_str, "2,");
+                stroff += 2;
+            }
+            if (cap & 0x2000) {
+                strcpy (speed_str, "4,");
+                stroff += 2;
+            }
+            if (cap & 0x1000) {
+                strcpy (speed_str, "10");
+                stroff += 2;
+            }
+            strcpy (&speed_str[stroff], "Gb");
+            proto_tree_add_text (rpsc_tree, tvb, offset, 2,
+                                 "Port Speed Capabilities (Port %d): %s", i,
+                                 speed_str);
+            cap = tvb_get_ntohs (tvb, offset+2);
+            proto_tree_add_text (rpsc_tree, tvb, offset+2, 2,
+                                 "Port Oper Speed: %s",
+                                 val_to_str (cap, fc_els_portspeed_val,
+                                             "0x%x"));
+        }
+    }
+}
+
+static void
+dissect_fcels_rnid (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                    guint8 isreq, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 0;
+    int clen, slen;
+    proto_tree *rnid_tree;
+
+    if (tree) {
+        rnid_tree = proto_item_add_subtree (ti, ett_fcels_rnid);
+
+        proto_tree_add_item (rnid_tree, hf_fcels_opcode, tvb, offset, 1, 0);
+        if (isreq) {
+            proto_tree_add_item (rnid_tree, hf_fcels_nodeidfmt, tvb, offset+4,
+                                 1, 0);
+        }
+        else {
+            /* We only decode responses to nodeid fmt DF */
+            proto_tree_add_item (rnid_tree, hf_fcels_nodeidfmt, tvb, offset+4,
+                                 1, 0);
+            clen = tvb_get_guint8 (tvb, offset+5);
+            proto_tree_add_text (rnid_tree, tvb, offset+5, 1,
+                                 "Common Identification Data Length: %d", clen);
+            slen = tvb_get_guint8 (tvb, offset+7);
+            proto_tree_add_item (rnid_tree, hf_fcels_spidlen, tvb, offset+7,
+                                 1, 0);
+            if (clen) {
+                proto_tree_add_string (rnid_tree, hf_fcels_npname, tvb,
+                                       offset+8, 8,
+                                       fcwwn_to_str (tvb_get_ptr (tvb, offset+8,
+                                                                  8)));
+                proto_tree_add_string (rnid_tree, hf_fcels_fnname, tvb,
+                                       offset+16, 8,
+                                       fcwwn_to_str (tvb_get_ptr (tvb,
+                                                                  offset+16,
+                                                                  8)));
+            }
+            if (tvb_get_guint8 (tvb, offset+4) == 0xDF) {
+                /* Decode the Specific Node ID Format as this is known */
+                proto_tree_add_item (rnid_tree, hf_fcels_vendoruniq, tvb,
+                                     offset+24, 16, 0);
+                proto_tree_add_item (rnid_tree, hf_fcels_asstype, tvb,
+                                     offset+40, 4, 0);
+                proto_tree_add_item (rnid_tree, hf_fcels_physport, tvb,
+                                     offset+44, 4, 0);
+                proto_tree_add_item (rnid_tree, hf_fcels_attnodes, tvb,
+                                     offset+48, 4, 0);
+                proto_tree_add_item (rnid_tree, hf_fcels_nodemgmt, tvb,
+                                     offset+52, 1, 0);
+                proto_tree_add_item (rnid_tree, hf_fcels_ipvers, tvb,
+                                     offset+53, 1, 0);
+                proto_tree_add_item (rnid_tree, hf_fcels_tcpport, tvb,
+                                     offset+54, 2, 0);
+                proto_tree_add_item (rnid_tree, hf_fcels_ip, tvb, offset+56,
+                                     16, 0);
+                proto_tree_add_item (rnid_tree, hf_fcels_vendorsp, tvb,
+                                     offset+74, 2, 0);
+            }
+        }
+    }
+}
+
+static void
+dissect_fcels_rlir (tvbuff_t *tvb _U_, packet_info *pinfo _U_,
+                    proto_tree *tree, guint8 isreq _U_,
+                    proto_item *ti _U_)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+
+    if (tree) {
+    }
+}
+
+static void
+dissect_fcels_lsrjt (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
+                     guint8 isreq _U_, proto_item *ti)
+{
+    /* Set up structures needed to add the protocol subtree and manage it */
+    int offset = 5;
+    proto_tree *lsrjt_tree;
+
+    if (tree) {
+        lsrjt_tree = proto_item_add_subtree (ti, ett_fcels_lsrjt);
+
+        proto_tree_add_item (lsrjt_tree, hf_fcels_opcode, tvb, offset-5, 1, 0);
+
+        proto_tree_add_item (lsrjt_tree, hf_fcels_rjtcode, tvb, offset++, 1, 0);
+        proto_tree_add_item (lsrjt_tree, hf_fcels_rjtdetcode, tvb, offset++, 1, 0);
+        proto_tree_add_item (lsrjt_tree, hf_fcels_vnduniq, tvb, offset, 1, 0);
+    }
+}
+
+static void
+dissect_fcels (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+
+/* Set up structures needed to add the protocol subtree and manage it */
+    proto_item *ti = NULL;
+    proto_tree *acc_tree;
+    guint8 isreq = FC_ELS_REQ;
+    int offset = 0;
+    guint8 opcode,
+           failed_opcode = 0;
+    conversation_t *conversation;
+    fcels_conv_data_t *cdata;
+    fcels_conv_key_t ckey, *req_key;
+    guint options;
+    address dstaddr;
+    guint8 addrdata[3];
+
+    /* 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 ELS");
+
+    /* decoding of this is done by each individual opcode handler */
+    opcode = tvb_get_guint8 (tvb, 0);
+    
+    if (tree) {
+        ti = proto_tree_add_protocol_format (tree, proto_fcels, tvb, 0,
+                                             tvb_length (tvb), "FC ELS");
+    }
+
+    /* Register conversation in case this is not a response */
+    if ((opcode != FC_ELS_LSRJT) && (opcode != FC_ELS_ACC)) {
+        if (opcode == FC_ELS_FLOGI) {
+            if (pinfo->src.data[2]) {
+                /* If it is a loop port, we'll need to remember the ALPA */
+                options = NO_PORT2;
+            }
+            else {
+                options = NO_PORT2 | NO_ADDR2;
+            }
+        }
+        else {
+            options = NO_PORT2;
+        }
+        conversation = find_conversation (&pinfo->dst, &pinfo->src,
+                                          pinfo->ptype, pinfo->oxid,
+                                          pinfo->rxid, options);
+            
+        if (!conversation) {
+            conversation = conversation_new (&pinfo->dst, &pinfo->src,
+                                             pinfo->ptype, pinfo->oxid,
+                                             pinfo->rxid, options);
+        }
+    
+        ckey.conv_idx = conversation->index;
+        
+        cdata = (fcels_conv_data_t *)g_hash_table_lookup (fcels_req_hash,
+                                                          &ckey);
+        if (cdata) {
+            /* Since we never free the memory used by an exchange, this maybe a
+             * case of another request using the same exchange as a previous
+             * req. 
+             */
+            cdata->opcode = opcode;
+        }
+        else {
+            req_key = g_mem_chunk_alloc (fcels_req_keys);
+            req_key->conv_idx = conversation->index;
+            
+            cdata = g_mem_chunk_alloc (fcels_req_vals);
+            cdata->opcode = opcode;
+            
+            g_hash_table_insert (fcels_req_hash, req_key, cdata);
+        }
+    }
+    else {
+        isreq = FC_ELS_RPLY;
+
+        options = NO_PORT2;
+        conversation = find_conversation (&pinfo->dst, &pinfo->src,
+                                          pinfo->ptype, pinfo->oxid,
+                                          pinfo->rxid, options);
+        if (!conversation) {
+            /* FLOGI has two ways to save state: without the src and using just
+             * the port (ALPA) part of the address. Try both.
+             */
+            addrdata[0] = addrdata[1] = 0;
+            addrdata[2] = pinfo->dst.data[2];
+            SET_ADDRESS (&dstaddr, AT_FC, 3, addrdata);
+            conversation = find_conversation (&dstaddr, &pinfo->src,
+                                              pinfo->ptype, pinfo->oxid,
+                                              pinfo->rxid, options);
+        }
+
+        if (!conversation) {
+            /* Finally check for FLOGI with both NO_PORT2 and NO_ADDR2 set */
+            options = NO_ADDR2 | NO_PORT2;
+            conversation = find_conversation (&pinfo->src, &pinfo->dst,
+                                              pinfo->ptype, pinfo->oxid,
+                                              pinfo->rxid, options);
+            if (!conversation) {
+                if (tree && (opcode == FC_ELS_ACC)) {
+                    /* No record of what this accept is for. Can't decode */
+                    acc_tree = proto_item_add_subtree (ti, ett_fcels_acc);
+                    proto_tree_add_text (acc_tree, tvb, offset, tvb_length (tvb),
+                                         "No record of Exchange. Unable to decode ACC");
+                    return;
+                }
+                failed_opcode = 0;
+            }
+        }
+        
+        if (conversation) {
+            ckey.conv_idx = conversation->index;
+            
+            cdata = (fcels_conv_data_t *)g_hash_table_lookup (fcels_req_hash, &ckey);
+            
+            if (cdata != NULL) {
+                if ((options & NO_ADDR2) && (cdata->opcode != FC_ELS_FLOGI)) {
+                    /* only FLOGI can have this special check */
+                    if (tree && (opcode == FC_ELS_ACC)) {
+                        /* No record of what this accept is for. Can't decode */
+                        acc_tree = proto_item_add_subtree (ti,
+                                                           ett_fcels_acc);
+                        proto_tree_add_text (acc_tree, tvb, offset,
+                                             tvb_length (tvb),
+                                             "No record of Exchg. Unable to decode ACC");
+                        return;
+                    }
+                }
+                if (opcode == FC_ELS_ACC)
+                    opcode = cdata->opcode;
+                else
+                    failed_opcode = cdata->opcode;
+            }
+            
+            if (tree) {
+                if ((cdata == NULL) && (opcode != FC_ELS_LSRJT)) {
+                    /* No record of what this accept is for. Can't decode */
+                    acc_tree = proto_item_add_subtree (ti, ett_fcels_acc);
+                    proto_tree_add_text (acc_tree, tvb, offset, tvb_length (tvb),
+                                         "No record of ELS Req. Unable to decode ACC");
+                    return;
+                }
+            }
+        }
+    }
+
+    if (check_col (pinfo->cinfo, COL_INFO)) {
+        if (isreq == FC_ELS_REQ) {
+            col_add_str (pinfo->cinfo, COL_INFO,
+                         val_to_str (opcode, fc_els_proto_val, "0x%x"));
+        }
+        else if (opcode == FC_ELS_LSRJT) {
+            col_add_fstr (pinfo->cinfo, COL_INFO, "LS_RJT (%s)",
+                          val_to_str (failed_opcode, fc_els_proto_val, "0x%x"));
+        }
+        else {
+            col_add_fstr (pinfo->cinfo, COL_INFO, "ACC (%s)",
+                          val_to_str (opcode, fc_els_proto_val, "0x%x"));
+        }
+    }
+    
+    switch (opcode) {
+    case FC_ELS_LSRJT:
+        dissect_fcels_lsrjt (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_PLOGI:
+        dissect_fcels_plogi (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_FLOGI:
+        dissect_fcels_flogi (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_LOGOUT:
+        dissect_fcels_logout (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_ABTX:
+        dissect_fcels_abtx (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_RSI:
+        dissect_fcels_rsi (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_RRQ:
+        dissect_fcels_rrq (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_PRLI:
+        dissect_fcels_prli (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_PRLO:
+        dissect_fcels_prlo (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_TPRLO:
+        dissect_fcels_tprlo (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_PDISC:
+        dissect_fcels_pdisc (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_FDISC:
+        dissect_fcels_fdisc (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_ADISC:
+        dissect_fcels_adisc (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_FARP_REQ:
+        dissect_fcels_farp_req (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_FARP_RPLY:
+        dissect_fcels_farp_rply (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_RPS:
+        dissect_fcels_rps (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_RPL:
+        dissect_fcels_rpl (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_FAN:
+        dissect_fcels_fan (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_RSCN:
+        dissect_fcels_rscn (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_SCR:
+        dissect_fcels_scr (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_RNFT:
+        dissect_fcels_rnft (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_LSTS:
+        dissect_fcels_lsts (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_RNID:
+        dissect_fcels_rnid (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_RLIR:
+        dissect_fcels_rlir (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_LIRR:
+        dissect_fcels_lirr (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_SRL:
+        dissect_fcels_srl (tvb, pinfo, tree, isreq, ti);
+        break;
+    case FC_ELS_RPSC:
+        dissect_fcels_rpsc (tvb, pinfo, tree, isreq, ti);
+        break;
+    default:
+        /* proto_tree_add_text ( */
+        call_dissector (data_handle, tvb, pinfo, tree);
+        break;
+    }
+}
+
+void
+proto_register_fcels (void)
+{                 
+
+/* Setup list of header fields  See Section 1.6.1 for details*/
+    static hf_register_info hf[] = {
+        { &hf_fcels_opcode,
+          {"Cmd Code", "fcels.opcode", FT_UINT8, BASE_HEX,
+           VALS (fc_els_proto_val), 0x0, "", HFILL}},
+        { &hf_fcels_rjtcode,
+          {"Reason Code", "fcels.rjt.reason", FT_UINT8, BASE_HEX,
+           VALS (fc_els_rjt_val), 0x0, "", HFILL}},
+        { &hf_fcels_rjtdetcode,
+          {"Reason Explanation", "fcels.rjt.detail", FT_UINT8, BASE_HEX,
+           VALS (fc_els_rjt_det_val), 0x0, "", HFILL}},
+        { &hf_fcels_vnduniq,
+          {"Vendor Unique", "fcels.rjt.vnduniq", FT_UINT8, BASE_HEX, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_b2b,
+          {"B2B Credit", "fcels.logi.b2b", FT_UINT8, BASE_DEC, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcels_cmnfeatures,
+          {"Common Features", "fcels.logi.cmnfeatures", FT_UINT16, BASE_HEX, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_bbscnum,
+          {"BB_SC Number", "fcels.logi.bbscnum", FT_UINT8, BASE_DEC, NULL, 0xF0, "",
+           HFILL}},
+        { &hf_fcels_rcvsize,
+          {"Receive Size", "fcels.logi.rcvsize", FT_UINT16, BASE_DEC, NULL, 0x0FFF, "",
+           HFILL}},
+        { &hf_fcels_maxconseq,
+          {"Max Concurrent Seq", "fcels.logi.maxconseq", FT_UINT16, BASE_DEC, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_reloffset,
+          {"Relative Offset By Info Cat", "fcels.logi.reloff", FT_UINT16, BASE_DEC,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_edtov,
+          {"E_D_TOV", "fcels.edtov", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL}},
+        { &hf_fcels_npname,
+          {"N_Port Port_Name", "fcels.npname", FT_STRING, BASE_HEX, NULL, 0x0,
+           "", HFILL}},
+        { &hf_fcels_fnname,
+          {"Fabric/Node Name", "fcels.fnname", FT_STRING, BASE_HEX, NULL, 0x0,
+           "", HFILL}},
+        { &hf_fcels_cls1param,
+          {"Class 1 Svc Param", "fcels.logi.cls1param", FT_BYTES, BASE_HEX, NULL, 0x0,
+           "", HFILL}},
+        { &hf_fcels_cls2param,
+          {"Class 2 Svc Param", "fcels.logi.cls2param", FT_BYTES, BASE_HEX, NULL, 0x0,
+           "", HFILL}},
+        { &hf_fcels_cls3param,
+          {"Class 3 Svc Param", "fcels.logi.cls3param", FT_BYTES, BASE_HEX, NULL, 0x0,
+           "", HFILL}},
+        { &hf_fcels_cls4param,
+          {"Class 4 Svc Param", "fcels.logi.cls4param", FT_BYTES, BASE_HEX, NULL, 0x0,
+           "", HFILL}},
+        { &hf_fcels_vendorvers,
+          {"Vendor Version", "fcels.logi.vendvers", FT_BYTES, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcels_svcavail,
+          {"Services Availability", "fcels.logi.svcavail", FT_BYTES, BASE_HEX, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_clsflags,
+          {"Class Flags", "fcels.logi.clsflags", FT_UINT16, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcels_initctl,
+          {"Initiator Ctl", "fcels.logi.initctl", FT_UINT16, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcels_rcptctl,
+          {"Recipient Ctl", "fcels.logi.rcptctl", FT_UINT16, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcels_clsrcvsize,
+          {"Class Recv Size", "fcels.logi.clsrcvsize", FT_UINT16, BASE_DEC, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_conseq,
+          {"Total Concurrent Seq", "fcels.logi.totconseq", FT_UINT8, BASE_DEC, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_e2e,
+          {"End2End Credit", "fcels.logi.e2e", FT_UINT16, BASE_DEC, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcels_openseq,
+          {"Open Seq Per Exchg", "fcels.logi.openseq", FT_UINT8, BASE_DEC, NULL, 0x0,
+           "", HFILL}},
+        { &hf_fcels_nportid,
+          {"Originator S_ID", "fcels.portid", FT_STRING, BASE_HEX, NULL, 0x0,
+           "", HFILL}},
+        { &hf_fcels_oxid,
+          {"OXID", "fcels.oxid", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}},
+        { &hf_fcels_rxid,
+          {"RXID", "fcels.rxid", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}},
+        { &hf_fcels_recovqual,
+          {"Recovery Qualifier", "fcels.rcovqual", FT_UINT8, BASE_HEX, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_fabricaddr,
+          {"Fabric Address", "fcels.faddr", FT_STRING, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcels_fabricpname,
+          {"Fabric Port Name", "fcels.fpname", FT_STRING, BASE_HEX, NULL, 0x0,
+           "", HFILL}},
+        { &hf_fcels_failedrcvr,
+          {"Failed Receiver AL_PA", "fcels.faildrcvr", FT_UINT8, BASE_HEX, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_flacompliance,
+          {"FC-FLA Compliance", "fcels.flacompliance", FT_UINT8, BASE_HEX,
+           VALS (fc_els_flacompliance_val), 0x0, "", HFILL}},
+        { &hf_fcels_loopstate,
+          {"Loop State", "fcels.loopstate", FT_UINT8, BASE_HEX,
+           VALS (fc_els_loopstate_val), 0x0, "", HFILL}},
+        { &hf_fcels_publicloop_bmap,
+          {"Public Loop Device Bitmap", "fcels.pubdev_bmap", FT_BYTES, BASE_HEX,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_pvtloop_bmap,
+          {"Private Loop Device Bitmap", "fcels.pvtdev_bmap", FT_BYTES,
+           BASE_HEX, NULL, 0x0, "", HFILL}},
+        { &hf_fcels_alpa_map,
+          {"AL_PA Map", "fcels.alpa", FT_BYTES, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+        { &hf_fcels_scrregn,
+          {"Registration Function", "fcels.scr.regn", FT_UINT8, BASE_HEX,
+           VALS (fc_els_scr_reg_val), 0x0, "", HFILL}},
+        { &hf_fcels_farp_matchcodept,
+          {"Match Address Code Points", "fcels.matchcp", FT_UINT8, BASE_BIN,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_farp_respaction,
+          {"Responder Action", "fcels.respaction", FT_UINT8, BASE_HEX, 
+           VALS (fc_els_farp_respaction_val), 0x0, "", HFILL}},
+        { &hf_fcels_resportid,
+          {"Responding Port ID", "fcels.resportid", FT_STRING, BASE_HEX,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_respname,
+          {"Responding Port Name", "fcels.respname", FT_STRING, BASE_HEX,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_respnname,
+          {"Responding Node Name", "fcels.respnname", FT_STRING, BASE_HEX,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_reqipaddr,
+          {"Requesting IP Address", "fcels.reqipaddr", FT_IPv6, BASE_DEC,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_respipaddr,
+          {"Responding IP Address", "fcels.respipaddr", FT_IPv6, BASE_DEC,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_hardaddr,
+          {"Hard Address of Originator", "fcels.hrdaddr", FT_STRING, BASE_HEX,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_rps_flag,
+          {"Flag", "fcels.flag", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL}},
+        { &hf_fcels_rps_portnum,
+          {"Physical Port Number", "fcels.portnum", FT_UINT32, BASE_HEX, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_rps_portstatus,
+          {"Port Status", "fcels.portstatus", FT_UINT16, BASE_HEX,
+           VALS(fc_els_portstatus_val), 0x0, "", HFILL}},
+        { &hf_fcels_rnft_fc4type,
+          {"FC-4 Type", "fcels.rnft.fc4type", FT_UINT8, BASE_HEX,
+           VALS (fc_fc4_val), 0x0, "", HFILL}},
+        { &hf_fcels_rscn_evqual,
+          {"Event Qualifier", "fcels.rscn.evqual", FT_UINT8, BASE_HEX,
+           VALS (fc_els_rscn_evqual_val), 0x3C, "", HFILL}},
+        { &hf_fcels_rscn_addrfmt,
+          {"Address Format", "fcels.rscn.addrfmt", FT_UINT8, BASE_HEX,
+           VALS (fc_els_rscn_addrfmt_val), 0x03, "", HFILL}},
+        { &hf_fcels_rscn_domain,
+          {"Affected Domain", "fcels.rscn.domain", FT_UINT8, BASE_HEX,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_rscn_area,
+          {"Affected Area", "fcels.rscn.area", FT_UINT8, BASE_HEX,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_rscn_port,
+          {"Affected Port", "fcels.rscn.port", FT_UINT8, BASE_HEX,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_nodeidfmt,
+          {"Node Identification Format", "fcels.rnid.nodeidfmt", FT_UINT8,
+           BASE_HEX, VALS (fc_els_nodeid_val), 0x0, "", HFILL}},
+        { &hf_fcels_spidlen,
+          {"Specific Id Length", "fcels.rnid.spidlen", FT_UINT8, BASE_DEC, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_vendoruniq,
+          {"Vendor Unique", "fcels.rnid.vendoruniq", FT_BYTES, BASE_HEX, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_vendorsp,
+          {"Vendor Specific", "fcels.rnid.vendorsp", FT_UINT16, BASE_HEX, NULL,
+           0x0, "", HFILL}},
+        { &hf_fcels_asstype,
+          {"Associated Type", "fcels.rnid.asstype", FT_UINT32, BASE_HEX, 
+           VALS (fc_els_rnid_asstype_val), 0x0, "", HFILL}},
+        { &hf_fcels_physport,
+          {"Physical Port Number", "fcels.rnid.physport", FT_UINT32, BASE_HEX,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_attnodes,
+          {"Number of Attached Nodes", "fcels.rnid.attnodes", FT_UINT32,
+           BASE_HEX, NULL, 0x0, "", HFILL}},
+        { &hf_fcels_nodemgmt,
+          {"Node Management", "fcels.rnid.nodemgmt", FT_UINT8, BASE_HEX,
+           VALS (fc_els_rnid_mgmt_val), 0x0, "", HFILL}},
+        { &hf_fcels_ipvers,
+          {"IP Version", "fcels.rnid.ipvers", FT_UINT8, BASE_HEX,
+           VALS (fc_els_rnid_ipvers_val), 0x0, "", HFILL}},
+        { &hf_fcels_tcpport,
+          {"TCP/UDP Port Number", "fcels.rnid.tcpport", FT_UINT16, BASE_DEC,
+           NULL, 0x0, "", HFILL}},
+        { &hf_fcels_ip,
+          {"IP Address", "fcels.rnid.ip", FT_IPv6, BASE_HEX, NULL, 0x0, "",
+           HFILL}},
+    };
+
+    static gint *ett[] = {
+        &ett_fcels,
+        &ett_fcels,
+        &ett_fcels_lsrjt,
+        &ett_fcels_acc,
+        &ett_fcels_logi,
+        &ett_fcels_logi_cmnsvc,
+        &ett_fcels_logi_clssvc,
+        &ett_fcels_logo,
+        &ett_fcels_abtx,
+        &ett_fcels_rsi,
+        &ett_fcels_rrq,
+        &ett_fcels_prli,
+        &ett_fcels_prli_svcpg,
+        &ett_fcels_adisc,
+        &ett_fcels_farp,
+        &ett_fcels_rps,
+        &ett_fcels_rpl,
+        &ett_fcels_rplpb,
+        &ett_fcels_fan,
+        &ett_fcels_rscn,
+        &ett_fcels_rscn_rec,
+        &ett_fcels_scr,
+        &ett_fcels_rnft,
+        &ett_fcels_rnft_fc4,
+        &ett_fcels_lsts,
+        &ett_fcels_rnid,
+        &ett_fcels_rlir,
+        &ett_fcels_lirr,
+        &ett_fcels_srl,
+        &ett_fcels_rpsc,
+    };
+
+    /* Register the protocol name and description */
+    proto_fcels = proto_register_protocol("FC Extended Link Svc", "FC ELS", "els");
+
+    /* Required function calls to register the header fields and subtrees used */
+    proto_register_field_array(proto_fcels, hf, array_length(hf));
+    proto_register_subtree_array(ett, array_length(ett));
+    register_init_routine (&fcels_init_protocol);
+}
+
+void
+proto_reg_handoff_fcels (void)
+{
+    dissector_handle_t els_handle;
+
+    els_handle = create_dissector_handle (dissect_fcels, proto_fcels);
+    dissector_add("fc.ftype", FC_FTYPE_ELS, els_handle);
+
+    data_handle = find_dissector ("data");
+}