2 * Routines for Fibre Channel Decoding (FC Header, Link Ctl & Basic Link Svc)
3 * Copyright 2001, Dinesh G Dutt <ddutt@cisco.com>
5 * $Id: packet-fc.c,v 1.3 2003/01/28 23:56:38 guy Exp $
7 * Ethereal - Network traffic analyzer
8 * By Gerald Combs <gerald@ethereal.com>
9 * Copyright 1998 Gerald Combs
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
34 #ifdef HAVE_SYS_TYPES_H
35 # include <sys/types.h>
38 #ifdef HAVE_NETINET_IN_H
39 # include <netinet/in.h>
44 #ifdef NEED_SNPRINTF_H
45 # include "snprintf.h"
48 #include <epan/packet.h>
50 #include "reassemble.h"
52 #include "packet-fc.h"
53 #include "packet-fclctl.h"
54 #include "packet-fcbls.h"
56 #define FC_HEADER_SIZE 24
57 #define FC_RCTL_EISL 0x50
59 /* Size of various fields in FC header in bytes */
60 #define FC_RCTL_SIZE 1
62 #define FC_CSCTL_SIZE 1
64 #define FC_TYPE_SIZE 1
65 #define FC_FCTL_SIZE 3
66 #define FC_SEQID_SIZE 1
67 #define FC_DFCTL_SIZE 1
68 #define FC_SEQCNT_SIZE 2
69 #define FC_OXID_SIZE 2
70 #define FC_RXID_SIZE 2
71 #define FC_PARAM_SIZE 4
73 /* Initialize the protocol and registered fields */
74 static int proto_fc = -1;
75 static int hf_fc_rctl = -1;
76 static int hf_fc_did = -1;
77 static int hf_fc_csctl = -1;
78 static int hf_fc_sid = -1;
79 static int hf_fc_type = -1;
80 static int hf_fc_fctl = -1;
81 static int hf_fc_seqid = -1;
82 static int hf_fc_dfctl = -1;
83 static int hf_fc_seqcnt = -1;
84 static int hf_fc_oxid = -1;
85 static int hf_fc_rxid = -1;
86 static int hf_fc_param = -1;
87 static int hf_fc_ftype = -1; /* Derived field, non-existent in FC hdr */
88 static int hf_fc_exchg_orig = -1;
89 static int hf_fc_exchg_resp = -1;
90 static int hf_fc_reassembled = -1;
92 /* Network_Header fields */
93 static int hf_fc_nh_da = -1;
94 static int hf_fc_nh_sa = -1;
96 /* For Basic Link Svc */
97 static int hf_fc_bls_seqid_vld = -1;
98 static int hf_fc_bls_lastvld_seqid = -1;
99 static int hf_fc_bls_oxid = -1;
100 static int hf_fc_bls_rxid = -1;
101 static int hf_fc_bls_lowseqcnt = -1;
102 static int hf_fc_bls_hiseqcnt = -1;
103 static int hf_fc_bls_rjtcode = -1;
104 static int hf_fc_bls_rjtdetail = -1;
105 static int hf_fc_bls_vendor = -1;
108 /* Initialize the subtree pointers */
109 static gint ett_fc = -1;
110 static gint ett_fcbls = -1;
112 static dissector_table_t fcftype_dissector_table;
113 static dissector_handle_t data_handle;
115 /* Reassembly stuff */
116 static gboolean fc_reassemble = TRUE;
117 static guint32 fc_max_frame_size = 1024;
118 static GHashTable *fc_fragment_table = NULL;
120 const value_string fc_fc4_val[] = {
121 {FC_TYPE_ELS , "Ext Link Svc"},
122 {FC_TYPE_LLCSNAP , "LLC_SNAP"},
123 {FC_TYPE_IP , "IP/FC"},
124 {FC_TYPE_SCSI , "FCP"},
125 {FC_TYPE_FCCT , "FC_CT"},
126 {FC_TYPE_SWILS , "SW_ILS"},
128 {FC_TYPE_SNMP , "SNMP"},
132 static const value_string fc_ftype_vals [] = {
133 {FC_FTYPE_UNDEF , "Unknown frame"},
134 {FC_FTYPE_SWILS, "SW_ILS"},
135 {FC_FTYPE_IP , "IP/FC"},
136 {FC_FTYPE_SCSI , "FCP"},
137 {FC_FTYPE_BLS , "Basic Link Svc"},
138 {FC_FTYPE_ELS , "ELS"},
139 {FC_FTYPE_FCCT , "FC_CT"},
140 {FC_FTYPE_LINKDATA, "Link Data"},
141 {FC_FTYPE_VDO, "Video Data"},
142 {FC_FTYPE_LINKCTL, "Link Ctl"},
146 static const value_string fc_wka_vals[] = {
147 {FC_WKA_MULTICAST, "Multicast Server"},
148 {FC_WKA_CLKSYNC, "Clock Sync Server"},
149 {FC_WKA_KEYDIST, "Key Distribution Server"},
150 {FC_WKA_ALIAS, "Alias Server"},
151 {FC_WKA_QOSF, "QoS Facilitator"},
152 {FC_WKA_MGMT, "Management Server"},
153 {FC_WKA_TIME, "Time Server"},
154 {FC_WKA_DNS, "Directory Server"},
155 {FC_WKA_FABRIC_CTRLR, "Fabric Ctlr"},
156 {FC_WKA_FPORT, "F_Port Server"},
157 {FC_WKA_BCAST, "Broadcast ID"},
161 static const value_string fc_iu_val[] = {
162 {FC_IU_UNCATEGORIZED , "Uncategorized Data"},
163 {FC_IU_SOLICITED_DATA , "Solicited Data"},
164 {FC_IU_UNSOLICITED_CTL , "Unsolicited Control"},
165 {FC_IU_SOLICITED_CTL , "Solicited Control"},
166 {FC_IU_UNSOLICITED_DATA, "Solicited Data"},
167 {FC_IU_DATA_DESCRIPTOR , "Data Descriptor"},
168 {FC_IU_UNSOLICITED_CMD , "Unsolicited Command"},
169 {FC_IU_CMD_STATUS , "Command Status"},
173 static void fc_defragment_init(void)
175 fragment_table_init(&fc_fragment_table);
180 fctl_to_str (const guint8 *fctl, gchar *str, gboolean is_ack)
188 if (fctl[0] & 0x80) {
189 strcpy (str, "Exchange Responder, ");
193 strcpy (str, "Exchange Originator, ");
197 if (fctl[0] & 0x40) {
198 strcpy (&str[stroff], "Seq Recipient, ");
202 strcpy (&str[stroff], "Seq Initiator, ");
206 if (fctl[0] & 0x20) {
207 strcpy (&str[stroff], "Exchg First, ");
211 if (fctl[0] & 0x10) {
212 strcpy (&str[stroff], "Exchg Last, ");
217 strcpy (&str[stroff], "Seq Last, ");
222 strcpy (&str[stroff], "Priority, ");
226 strcpy (&str[stroff], "CS_CTL, ");
231 strcpy (&str[stroff], "Transfer Seq Initiative, ");
235 if (fctl[1] & 0x30) {
236 strcpy (&str[stroff], "ACK_0 Reqd, ");
239 else if (fctl[1] & 0x10) {
240 strcpy (&str[stroff], "ACK_1 Reqd, ");
245 strcpy (&str[stroff], "Rexmitted Seq, ");
249 tmp = fctl[2] & 0xC0;
252 strcpy (&str[stroff], "Last Data Frame - No Info, ");
256 strcpy (&str[stroff], "Last Data Frame - Seq Imm, ");
260 strcpy (&str[stroff], "Last Data Frame - Seq Soon, ");
264 strcpy (&str[stroff], "Last Data Frame - Seq Delyd, ");
269 tmp = fctl[2] & 0x30;
273 strcpy (&str[stroff], "ABTS - Cont, ");
277 strcpy (&str[stroff], "ABTS - Abort/MS, ");
283 strcpy (&str[stroff], "ABTS - Abort, ");
287 strcpy (&str[stroff], "ABTS - Abort/SS, ");
293 strcpy (&str[stroff], "ABTS - Stop, ");
297 strcpy (&str[stroff], "ABTS - Process/IB, ");
303 strcpy (&str[stroff], "ABTS - Imm Seq Retx, ");
307 strcpy (&str[stroff], "ABTS - Discard/MS/Imm Retx, ");
314 strcpy (&str[stroff], "Rel Offset = 1");
321 /* BA_ACC & BA_RJT are decoded in this file itself instead of a traditional
322 * dedicated file and dissector format because the dissector would require some
323 * fields of the FC_HDR such as param in some cases, type in some others, the
324 * lower 4 bits of r_ctl in some other cases etc. So, we decode BLS & Link Ctl
325 * in this file itself.
328 dissect_fc_ba_acc (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
330 /* Set up structures needed to add the protocol subtree and manage it */
332 proto_tree *acc_tree;
335 /* Make entries in Protocol column and Info column on summary display */
336 if (check_col(pinfo->cinfo, COL_PROTOCOL))
337 col_set_str(pinfo->cinfo, COL_PROTOCOL, "BLS");
339 if (check_col(pinfo->cinfo, COL_INFO))
340 col_set_str(pinfo->cinfo, COL_INFO, "BA_ACC");
343 ti = proto_tree_add_text (tree, tvb, 0, tvb_length (tvb), "Basic Link Svc");
344 acc_tree = proto_item_add_subtree (ti, ett_fcbls);
346 proto_tree_add_item (acc_tree, hf_fc_bls_seqid_vld, tvb, offset++, 1, FALSE);
347 proto_tree_add_item (acc_tree, hf_fc_bls_lastvld_seqid, tvb, offset++, 1, FALSE);
348 offset += 2; /* Skip reserved field */
349 proto_tree_add_item (acc_tree, hf_fc_bls_oxid, tvb, offset, 2, FALSE);
351 proto_tree_add_item (acc_tree, hf_fc_bls_rxid, tvb, offset, 2, FALSE);
353 proto_tree_add_item (acc_tree, hf_fc_bls_lowseqcnt, tvb, offset, 2, FALSE);
355 proto_tree_add_item (acc_tree, hf_fc_bls_hiseqcnt, tvb, offset, 2, FALSE);
360 dissect_fc_ba_rjt (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
362 /* Set up structures needed to add the protocol subtree and manage it */
364 proto_tree *rjt_tree;
367 /* Make entries in Protocol column and Info column on summary display */
368 if (check_col(pinfo->cinfo, COL_PROTOCOL))
369 col_set_str(pinfo->cinfo, COL_PROTOCOL, "BLS");
371 if (check_col(pinfo->cinfo, COL_INFO))
372 col_set_str(pinfo->cinfo, COL_INFO, "BA_RJT");
375 ti = proto_tree_add_text (tree, tvb, 0, tvb_length (tvb), "Basic Link Svc");
376 rjt_tree = proto_item_add_subtree (ti, ett_fcbls);
378 proto_tree_add_item (rjt_tree, hf_fc_bls_rjtcode, tvb, offset+1, 1, FALSE);
379 proto_tree_add_item (rjt_tree, hf_fc_bls_rjtdetail, tvb, offset+2, 1, FALSE);
380 proto_tree_add_item (rjt_tree, hf_fc_bls_vendor, tvb, offset+3, 1, FALSE);
385 fc_get_ftype (guint8 r_ctl, guint8 type)
387 /* A simple attempt to determine the upper level protocol based on the
388 * r_ctl & type fields.
390 switch (r_ctl & 0xF0) {
391 case FC_RCTL_DEV_DATA:
394 if ((r_ctl == 0x2) || (r_ctl == 0x3))
395 return FC_FTYPE_SWILS;
397 return FC_FTYPE_UNDEF;
401 return FC_FTYPE_SCSI;
403 return FC_FTYPE_FCCT;
405 return FC_FTYPE_UNDEF;
409 if (((r_ctl & 0x0F) == 0x2) || ((r_ctl & 0x0F) == 0x3))
412 return FC_FTYPE_UNDEF;
414 case FC_RCTL_LINK_DATA:
415 return FC_FTYPE_LINKDATA;
424 return FC_FTYPE_UNDEF;
426 case FC_RCTL_LINK_CTL:
427 return FC_FTYPE_LINKCTL;
430 return FC_FTYPE_UNDEF;
434 /* Code to actually dissect the packets */
436 dissect_fc (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
438 /* Set up structures needed to add the protocol subtree and manage it */
440 proto_tree *fc_tree = NULL;
442 int offset = 0, next_offset;
443 gboolean is_lastframe_inseq;
444 gboolean is_exchg_resp = 0;
445 fragment_data *fcfrag_head;
448 guint8 r_ctl, type, df_ctl;
456 /* Make entries in Protocol column and Info column on summary display */
457 if (check_col(pinfo->cinfo, COL_PROTOCOL))
458 col_set_str(pinfo->cinfo, COL_PROTOCOL, "FC");
460 r_ctl = tvb_get_guint8 (tvb, offset);
462 /* If the R_CTL is the EISL field, skip the first 8 bytes to retrieve the
463 * real FC header. EISL is Cisco-proprietary and is not decoded.
465 if (r_ctl == FC_RCTL_EISL) {
467 r_ctl = tvb_get_guint8 (tvb, offset);
470 type = tvb_get_guint8 (tvb, offset+8);
471 seqcnt = tvb_get_ntohs (tvb, offset+14);
472 param = tvb_get_ntohl (tvb, offset+20);
474 SET_ADDRESS (&pinfo->dst, AT_FC, 3, tvb_get_ptr (tvb, 1, 3));
475 SET_ADDRESS (&pinfo->src, AT_FC, 3, tvb_get_ptr (tvb, 5, 3));
476 pinfo->oxid = tvb_get_ntohs (tvb, offset+16);
477 pinfo->rxid = tvb_get_ntohs (tvb, offset+18);
478 pinfo->ptype = PT_EXCHG;
479 pinfo->r_ctl = r_ctl;
481 is_ack = ((r_ctl == 0xC0) || (r_ctl == 0xC1));
483 ftype = fc_get_ftype (r_ctl, type);
485 if (check_col (pinfo->cinfo, COL_INFO)) {
486 col_add_str (pinfo->cinfo, COL_INFO, match_strval (ftype, fc_ftype_vals));
488 if (ftype == FC_FTYPE_LINKCTL)
489 col_append_fstr (pinfo->cinfo, COL_INFO, ", %s",
490 match_strval ((r_ctl & 0x0F),
494 /* In the interest of speed, if "tree" is NULL, don't do any work not
495 necessary to generate protocol tree items. */
497 ti = proto_tree_add_protocol_format (tree, proto_fc, tvb, offset,
498 FC_HEADER_SIZE, "Fibre Channel");
499 fc_tree = proto_item_add_subtree (ti, ett_fc);
501 if (ftype == FC_FTYPE_LINKCTL) {
502 /* the lower 4 bits of R_CTL indicate the type of link ctl frame */
503 proto_tree_add_uint_format (fc_tree, hf_fc_rctl, tvb, offset,
507 val_to_str ((r_ctl & 0x0F),
508 fc_lctl_proto_val, "0x%x"));
510 else if (ftype == FC_FTYPE_BLS) {
511 /* the lower 4 bits of R_CTL indicate the type of BLS frame */
512 proto_tree_add_uint_format (fc_tree, hf_fc_rctl, tvb, offset,
516 val_to_str ((r_ctl & 0x0F),
517 fc_bls_proto_val, "0x%x"));
520 proto_tree_add_item (fc_tree, hf_fc_rctl, tvb, offset, 1, FALSE);
523 proto_tree_add_uint_hidden (fc_tree, hf_fc_ftype, tvb, offset, 1,
525 proto_tree_add_string (fc_tree, hf_fc_did, tvb, offset+1, 3,
526 fc_to_str ((guint8 *)tvb_get_ptr (tvb,
528 proto_tree_add_item (fc_tree, hf_fc_csctl, tvb, offset+4, 1, FALSE);
530 proto_tree_add_string (fc_tree, hf_fc_sid, tvb, offset+5, 3,
531 fc_to_str ((guint8 *)tvb_get_ptr (tvb,
534 if (ftype == FC_FTYPE_LINKCTL) {
535 if (((r_ctl & 0x0F) == FC_LCTL_FBSYB) ||
536 ((r_ctl & 0x0F) == FC_LCTL_FBSYL)) {
537 /* for F_BSY frames, the upper 4 bits of the type field specify the
538 * reason for the BSY.
540 proto_tree_add_uint_format (fc_tree, hf_fc_type, tvb,
541 offset+8, FC_TYPE_SIZE,
542 type, "Type: 0x%x(%s)", type,
543 fclctl_get_typestr (r_ctl & 0x0F,
547 proto_tree_add_item (fc_tree, hf_fc_type, tvb, offset+8, 1, FALSE);
551 proto_tree_add_item (fc_tree, hf_fc_type, tvb, offset+8, 1, FALSE);
554 proto_tree_add_uint_format (fc_tree, hf_fc_fctl, tvb, offset+9,
555 3, tvb_get_ntoh24 (tvb, offset+9),
557 tvb_get_ntoh24 (tvb, offset+9),
558 fctl_to_str (tvb_get_ptr (tvb, offset+9, 3),
561 /* Bit 23 if set => this frame is from the exchange originator */
562 if (tvb_get_guint8 (tvb, offset+9) & 0x80) {
563 proto_tree_add_boolean_hidden (fc_tree, hf_fc_exchg_orig, tvb,
565 proto_tree_add_boolean_hidden (fc_tree, hf_fc_exchg_resp, tvb,
569 proto_tree_add_boolean_hidden (fc_tree, hf_fc_exchg_orig, tvb,
571 proto_tree_add_boolean_hidden (fc_tree, hf_fc_exchg_resp, tvb,
575 proto_tree_add_item (fc_tree, hf_fc_seqid, tvb, offset+12, 1, FALSE);
577 df_ctl = tvb_get_guint8(tvb, offset+13);
579 proto_tree_add_uint (fc_tree, hf_fc_dfctl, tvb, offset+13, 1, df_ctl);
580 proto_tree_add_item (fc_tree, hf_fc_seqcnt, tvb, offset+14, 2, FALSE);
581 proto_tree_add_item (fc_tree, hf_fc_oxid, tvb, offset+16, 2, FALSE);
582 proto_tree_add_item (fc_tree, hf_fc_rxid, tvb, offset+18, 2, FALSE);
584 if (ftype == FC_FTYPE_LINKCTL) {
585 if (((r_ctl & 0x0F) == FC_LCTL_FRJT) ||
586 ((r_ctl & 0x0F) == FC_LCTL_PRJT) ||
587 ((r_ctl & 0x0F) == FC_LCTL_PBSY)) {
588 /* In all these cases of Link Ctl frame, the parameter field
589 * encodes the detailed error message
591 proto_tree_add_uint_format (fc_tree, hf_fc_param, tvb,
593 "Parameter: 0x%x(%s)", param,
594 fclctl_get_paramstr ((r_ctl & 0x0F),
598 proto_tree_add_item (fc_tree, hf_fc_param, tvb, offset+20, 4, FALSE);
601 else if (ftype == FC_FTYPE_BLS) {
602 if ((r_ctl & 0x0F) == FC_BLS_ABTS) {
603 proto_tree_add_uint_format (fc_tree, hf_fc_param, tvb,
605 "Parameter: 0x%x(%s)", param,
606 ((param & 0x0F) == 1 ? "Abort Sequence" :
610 proto_tree_add_item (fc_tree, hf_fc_param, tvb, offset+20,
615 proto_tree_add_item (fc_tree, hf_fc_param, tvb, offset+20, 4, FALSE);
619 /* Skip the Frame_Header */
620 next_offset = offset + FC_HEADER_SIZE;
622 /* Network_Header present? */
623 if (df_ctl & FC_DFCTL_NH) {
624 /* Yes - dissect it. */
626 proto_tree_add_string (fc_tree, hf_fc_nh_da, tvb, next_offset, 8,
627 fcwwn_to_str (tvb_get_ptr (tvb, offset, 8)));
628 proto_tree_add_string (fc_tree, hf_fc_nh_sa, tvb, offset+8, 8,
629 fcwwn_to_str (tvb_get_ptr (tvb, offset+8, 8)));
634 /* XXX - handle Association_Header and Device_Header here */
636 if (ftype == FC_FTYPE_LINKCTL) {
637 /* ACK_1 frames and other LINK_CTL frames echo the last seq bit if the
638 * packet they're ack'ing did not have it set. So, we'll incorrectly
639 * flag them as being fragmented when they're not. This fixes the
642 is_lastframe_inseq = TRUE;
645 is_lastframe_inseq = tvb_get_guint8 (tvb, offset+9) & 0x08;
646 is_exchg_resp = ((tvb_get_guint8 (tvb, offset+20) & 0x80) == 0x80);
649 frag_size = tvb_reported_length (tvb)-FC_HEADER_SIZE;
651 if (!is_lastframe_inseq) {
652 /* Show this only as a fragmented FC frame */
653 if (check_col (pinfo->cinfo, COL_INFO)) {
654 col_append_str (pinfo->cinfo, COL_INFO, " (Fragmented)");
658 /* If this is a fragment, attempt to check if fully reassembled frame is
659 * present, if we're configured to reassemble.
661 if ((ftype != FC_FTYPE_LINKCTL) && (ftype != FC_FTYPE_BLS) &&
662 seqcnt && fc_reassemble) {
663 /* Add this to the list of fragments */
664 frag_id = (pinfo->oxid << 16) | is_exchg_resp;
666 /* We assume that all frames are of the same max size */
667 fcfrag_head = fragment_add (tvb, FC_HEADER_SIZE, pinfo, frag_id,
669 seqcnt * fc_max_frame_size,
674 next_tvb = tvb_new_real_data (fcfrag_head->data,
675 fcfrag_head->datalen,
676 fcfrag_head->datalen);
677 tvb_set_child_real_data_tvbuff(tvb, next_tvb);
679 /* Add the defragmented data to the data source list. */
680 add_new_data_source(pinfo, next_tvb, "Reassembled FC");
683 proto_tree_add_boolean_hidden (fc_tree, hf_fc_reassembled,
684 tvb, offset+9, 1, 1);
689 proto_tree_add_boolean_hidden (fc_tree, hf_fc_reassembled,
690 tvb, offset+9, 1, 0);
692 next_tvb = tvb_new_subset (tvb, next_offset, -1, -1);
693 call_dissector (data_handle, next_tvb, pinfo, tree);
699 proto_tree_add_boolean_hidden (fc_tree, hf_fc_reassembled,
700 tvb, offset+9, 1, 0);
702 next_tvb = tvb_new_subset (tvb, next_offset, -1, -1);
705 if ((ftype != FC_FTYPE_LINKCTL) && (ftype != FC_FTYPE_BLS)) {
706 if (!dissector_try_port (fcftype_dissector_table, ftype, next_tvb,
708 call_dissector (data_handle, next_tvb, pinfo, tree);
711 else if (ftype == FC_FTYPE_BLS) {
712 if ((r_ctl & 0x0F) == FC_BLS_BAACC) {
713 dissect_fc_ba_acc (next_tvb, pinfo, tree);
715 else if ((r_ctl & 0x0F) == FC_BLS_BARJT) {
716 dissect_fc_ba_rjt (next_tvb, pinfo, tree);
722 /* Register the protocol with Ethereal */
724 /* this format is require because a script is used to build the C function
725 that calls all the protocol registration.
729 proto_register_fc(void)
732 /* Setup list of header fields See Section 1.6.1 for details*/
733 static hf_register_info hf[] = {
735 { "R_CTL", "fc.r_ctl", FT_UINT8, BASE_HEX, NULL, 0x0,
738 {"Frame type", "fc.ftype", FT_UINT8, BASE_HEX, VALS(fc_ftype_vals),
739 0x0, "Derived Type", HFILL}},
741 { "Dest Addr", "fc.d_id", FT_STRING, BASE_HEX, NULL, 0x0,
742 "Destination Address", HFILL}},
744 {"CS_CTL", "fc.cs_ctl", FT_UINT8, BASE_HEX, NULL, 0x0,
747 {"Src Addr", "fc.s_id", FT_STRING, BASE_HEX, NULL, 0x0,
748 "Source Address", HFILL}},
750 {"Type", "fc.type", FT_UINT8, BASE_HEX, VALS (fc_fc4_val), 0x0,
753 {"F_CTL", "fc.f_ctl", FT_UINT24, BASE_HEX, NULL, 0x0, "", HFILL}},
755 {"SEQ_ID", "fc.seq_id", FT_UINT8, BASE_HEX, NULL, 0x0,
756 "Sequence ID", HFILL}},
758 {"DF_CTL", "fc.df_ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL}},
760 {"SEQ_CNT", "fc.seq_cnt", FT_UINT16, BASE_DEC, NULL, 0x0,
761 "Sequence Count", HFILL}},
763 {"OX_ID", "fc.ox_id", FT_UINT16, BASE_HEX, NULL, 0x0, "Originator ID",
766 {"RX_ID", "fc.rx_id", FT_UINT16, BASE_HEX, NULL, 0x0, "Receiver ID",
769 {"Parameter", "fc.parameter", FT_UINT32, BASE_HEX, NULL, 0x0, "Parameter",
773 {"Exchange Originator", "fc.xchg_orig", FT_BOOLEAN, BASE_HEX, NULL,
776 {"Exchange Responder", "fc.xchg_resp", FT_BOOLEAN, BASE_HEX, NULL,
778 { &hf_fc_reassembled,
779 {"Reassembled Frame", "fc.reassembled", FT_BOOLEAN, BASE_HEX, NULL,
782 {"Network DA", "fc.nethdr.da", FT_STRING, BASE_HEX, NULL,
785 {"Network SA", "fc.nethdr.sa", FT_STRING, BASE_HEX, NULL,
788 /* Basic Link Svc field definitions */
789 { &hf_fc_bls_seqid_vld,
790 {"SEQID Valid", "fc.bls_seqidvld", FT_UINT8, BASE_HEX,
791 VALS (fc_bls_seqid_val), 0x0, "", HFILL}},
792 { &hf_fc_bls_lastvld_seqid,
793 {"Last Valid SEQID", "fc.bls_lastseqid", FT_UINT8, BASE_HEX, NULL,
796 {"OXID", "fc.bls_oxid", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}},
798 {"RXID", "fc.bls_rxid", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}},
799 { &hf_fc_bls_lowseqcnt,
800 {"Low SEQCNT", "fc.bls_lseqcnt", FT_UINT16, BASE_HEX, NULL, 0x0, "",
802 { &hf_fc_bls_hiseqcnt,
803 {"High SEQCNT", "fc.bls_hseqcnt", FT_UINT16, BASE_HEX, NULL, 0x0, "",
805 { &hf_fc_bls_rjtcode,
806 {"Reason", "fc.bls_reason", FT_UINT8, BASE_HEX, VALS(fc_bls_barjt_val),
808 { &hf_fc_bls_rjtdetail,
809 {"Reason Explanantion", "fc.bls_rjtdetail", FT_UINT8, BASE_HEX,
810 VALS (fc_bls_barjt_det_val), 0x0, "", HFILL}},
812 {"Vendor Unique Reason", "fc.bls_vnduniq", FT_UINT8, BASE_HEX, NULL,
816 /* Setup protocol subtree array */
817 static gint *ett[] = {
824 /* Register the protocol name and description */
825 proto_fc = proto_register_protocol ("Fibre Channel", "FC", "fc");
826 register_dissector ("fc", dissect_fc, proto_fc);
828 /* Required function calls to register the header fields and subtrees used */
829 proto_register_field_array(proto_fc, hf, array_length(hf));
830 proto_register_subtree_array(ett, array_length(ett));
832 fcftype_dissector_table = register_dissector_table ("fc.ftype",
836 /* Register preferences */
837 fc_module = prefs_register_protocol (proto_fc, NULL);
838 prefs_register_bool_preference (fc_module,
840 "Reassemble multi-frame sequences",
841 "If enabled, reassembly of multi-frame "
844 prefs_register_uint_preference (fc_module,
845 "max_frame_size", "Max FC Frame Size",
846 "This is the size of non-last frames in a "
847 "multi-frame sequence", 10,
850 register_init_routine(fc_defragment_init);
854 /* If this dissector uses sub-dissector registration add a registration routine.
855 This format is required because a script is used to find these routines and
856 create the code that calls these routines.
859 proto_reg_handoff_fc (void)
861 dissector_handle_t fc_handle;
863 fc_handle = create_dissector_handle (dissect_fc, proto_fc);
865 data_handle = find_dissector("data");