2 * Routines for Fibre Channel Protocol for SCSI (FCP)
3 * Copyright 2001, Dinesh G Dutt <ddutt@cisco.com>
7 * Wireshark - Network traffic analyzer
8 * By Gerald Combs <gerald@wireshark.org>
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 #include <epan/emem.h>
45 #include <epan/packet.h>
46 #include <epan/conversation.h>
47 #include <epan/etypes.h>
48 #include "packet-scsi.h"
49 #include "packet-fc.h"
50 #include "packet-fcp.h"
51 #include "packet-fcels.h"
53 /* Initialize the protocol and registered fields */
54 static int proto_fcp = -1;
55 static int hf_fcp_multilun = -1;
56 static int hf_fcp_singlelun = -1;
57 static int hf_fcp_crn = -1;
58 static int hf_fcp_taskattr = -1;
59 static int hf_fcp_taskmgmt = -1;
60 static int hf_fcp_addlcdblen = -1;
61 static int hf_fcp_rddata = -1;
62 static int hf_fcp_wrdata = -1;
63 static int hf_fcp_dl = -1;
64 static int hf_fcp_bidir_dl = -1;
65 static int hf_fcp_data_ro = -1;
66 static int hf_fcp_burstlen = -1;
67 static int hf_fcp_rspflags = -1;
68 static int hf_fcp_retry_delay_timer = -1;
69 static int hf_fcp_resid = -1;
70 static int hf_fcp_bidir_resid = -1;
71 static int hf_fcp_snslen = -1;
72 static int hf_fcp_rsplen = -1;
73 static int hf_fcp_rspcode = -1;
74 static int hf_fcp_scsistatus = -1;
75 static int hf_fcp_type = -1;
76 static int hf_fcp_mgmt_flags_obsolete = -1;
77 static int hf_fcp_mgmt_flags_clear_aca = -1;
78 static int hf_fcp_mgmt_flags_target_reset = -1;
79 static int hf_fcp_mgmt_flags_lu_reset = -1;
80 static int hf_fcp_mgmt_flags_rsvd = -1;
81 static int hf_fcp_mgmt_flags_clear_task_set = -1;
82 static int hf_fcp_mgmt_flags_abort_task_set = -1;
83 static int hf_fcp_rsp_flags_bidi = -1;
84 static int hf_fcp_rsp_flags_bidi_rru = -1;
85 static int hf_fcp_rsp_flags_bidi_rro = -1;
86 static int hf_fcp_rsp_flags_conf_req = -1;
87 static int hf_fcp_rsp_flags_resid_under = -1;
88 static int hf_fcp_rsp_flags_resid_over = -1;
89 static int hf_fcp_rsp_flags_sns_vld = -1;
90 static int hf_fcp_rsp_flags_res_vld = -1;
91 static int hf_fcp_request_in = -1;
92 static int hf_fcp_response_in = -1;
93 static int hf_fcp_time = -1;
94 static int hf_fcp_srr_op = -1;
95 static int hf_fcp_srr_ox_id = -1;
96 static int hf_fcp_srr_rx_id = -1;
97 static int hf_fcp_srr_r_ctl = -1;
99 /* Initialize the subtree pointers */
100 static gint ett_fcp = -1;
101 static gint ett_fcp_taskmgmt = -1;
102 static gint ett_fcp_rsp_flags = -1;
104 typedef struct _fcp_conv_data_t {
108 static dissector_table_t fcp_dissector;
109 static dissector_handle_t data_handle;
111 /* Information Categories based on lower 4 bits of R_CTL */
112 #define FCP_IU_DATA 0x1
113 #define FCP_IU_UNSOL_CTL 0x2
114 #define FCP_IU_SOL_CTL 0x3
115 #define FCP_IU_CONFIRM 0x3
116 #define FCP_IU_XFER_RDY 0x5
117 #define FCP_IU_CMD 0x6
118 #define FCP_IU_RSP 0x7
120 static const value_string fcp_iu_val[] = {
121 {FCP_IU_DATA , "FCP_DATA"},
122 {FCP_IU_UNSOL_CTL , "Control"},
123 {FCP_IU_CONFIRM , "Confirm"},
124 {FCP_IU_XFER_RDY , "XFER_RDY"},
125 {FCP_IU_CMD , "FCP_CMND"},
126 {FCP_IU_RSP , "FCP_RSP"},
131 /* Task Attribute Values */
132 static const value_string fcp_task_attr_val[] = {
134 {1, "Head of Queue"},
141 /* RSP Code Definitions (from FCP_RSP_INFO) */
142 static const value_string fcp_rsp_code_val[] = {
143 {0, "Task Management Function Complete"},
144 {1, "FCP_DATA length Different from FCP_BURST_LEN"},
145 {2, "FCP_CMND Fields Invalid"},
146 {3, "FCP_DATA Parameter Mismatch With FCP_DATA_RO"},
147 {4, "Task Management Function Rejected"},
148 {5, "Task Management Function Failed"},
149 {9, "Task Management Function Incorrect LUN"},
155 static const true_false_string fcp_mgmt_flags_obsolete_tfs = {
156 "OBSOLETE BIT is SET",
157 "OBSOLETE BIT is NOT set",
159 static const true_false_string fcp_mgmt_flags_clear_aca_tfs = {
161 "Clear aca is NOT set",
163 static const true_false_string fcp_mgmt_flags_target_reset_tfs = {
164 "TARGET RESET is SET",
165 "Target reset is NOT set",
167 static const true_false_string fcp_mgmt_flags_lu_reset_tfs = {
169 "Lu reset is NOT set",
171 static const true_false_string fcp_mgmt_flags_rsvd_tfs = {
175 static const true_false_string fcp_mgmt_flags_clear_task_set_tfs = {
176 "CLEAR TASK SET is SET",
177 "Clear task set is NOT set",
179 static const true_false_string fcp_mgmt_flags_abort_task_set_tfs = {
180 "ABORT TASK SET is SET",
181 "Abort task set is NOT set",
185 dissect_task_mgmt_flags (packet_info *pinfo, proto_tree *parent_tree, tvbuff_t *tvb, int offset)
187 proto_item *item = NULL;
188 proto_tree *tree = NULL;
193 item = proto_tree_add_item(parent_tree, hf_fcp_taskmgmt, tvb, offset, 1, TRUE);
194 tree = proto_item_add_subtree(item, ett_fcp_taskmgmt);
197 flags = tvb_get_guint8 (tvb, offset);
200 proto_item_append_text(item, " (No values set)");
202 proto_tree_add_boolean(tree, hf_fcp_mgmt_flags_obsolete, tvb, offset, 1, flags);
204 proto_item_append_text(item, " OBSOLETE");
205 if(check_col(pinfo->cinfo, COL_INFO)){
206 col_prepend_fence_fstr(pinfo->cinfo, COL_INFO, "[FCP OBSOLETE] ");
211 proto_tree_add_boolean(tree, hf_fcp_mgmt_flags_clear_aca, tvb, offset, 1, flags);
213 proto_item_append_text(item, " CLEAR ACA");
214 if(check_col(pinfo->cinfo, COL_INFO)){
215 col_prepend_fence_fstr(pinfo->cinfo, COL_INFO, "[FCP CLEAR_ACA] ");
220 proto_tree_add_boolean(tree, hf_fcp_mgmt_flags_target_reset, tvb, offset, 1, flags);
222 proto_item_append_text(item, " TARGET RESET");
223 if(check_col(pinfo->cinfo, COL_INFO)){
224 col_prepend_fence_fstr(pinfo->cinfo, COL_INFO, "[FCP TARGET_RESET] ");
229 proto_tree_add_boolean(tree, hf_fcp_mgmt_flags_lu_reset, tvb, offset, 1, flags);
231 proto_item_append_text(item, " LU RESET");
232 if(check_col(pinfo->cinfo, COL_INFO)){
233 col_prepend_fence_fstr(pinfo->cinfo, COL_INFO, "[FCP LU_RESET] ");
238 proto_tree_add_boolean(tree, hf_fcp_mgmt_flags_rsvd, tvb, offset, 1, flags);
240 proto_item_append_text(item, " RSVD");
241 if(check_col(pinfo->cinfo, COL_INFO)){
242 col_prepend_fence_fstr(pinfo->cinfo, COL_INFO, "[FCP RSVD] ");
247 proto_tree_add_boolean(tree, hf_fcp_mgmt_flags_clear_task_set, tvb, offset, 1, flags);
249 proto_item_append_text(item, " CLEAR TASK SET");
250 if(check_col(pinfo->cinfo, COL_INFO)){
251 col_prepend_fence_fstr(pinfo->cinfo, COL_INFO, "[FCP CLEAR_TASK_SET] ");
256 proto_tree_add_boolean(tree, hf_fcp_mgmt_flags_abort_task_set, tvb, offset, 1, flags);
258 proto_item_append_text(item, " ABORT TASK SET");
259 if(check_col(pinfo->cinfo, COL_INFO)){
260 col_prepend_fence_fstr(pinfo->cinfo, COL_INFO, "[FCP ABORT_TASK_SET] ");
266 proto_item_append_text(item, " Unknown bitmap value 0x%x", flags);
270 static const true_false_string fcp_rsp_flags_bidi_tfs = {
271 "Bidirectional residual fields are PRESENT",
272 "Bidirectional residual fields are NOT present",
274 static const true_false_string fcp_rsp_flags_bidi_rru_tfs = {
275 "Bidirectional residual underflow is PRESENT",
276 "Bidirectional residual underflow is NOT present",
278 static const true_false_string fcp_rsp_flags_bidi_rro_tfs = {
279 "Bidirectional residual overflow is PRESENT",
280 "Bidirectional residual overflow is NOT present",
282 static const true_false_string fcp_rsp_flags_conf_req_tfs = {
284 "Conf req set is NOT set",
286 static const true_false_string fcp_rsp_flags_resid_under_tfs = {
287 "RESID UNDER is SET",
288 "Resid under is NOT set",
290 static const true_false_string fcp_rsp_flags_resid_over_tfs = {
292 "Resid over is NOT set",
294 static const true_false_string fcp_rsp_flags_sns_vld_tfs = {
296 "Sns vld is NOT set",
298 static const true_false_string fcp_rsp_flags_res_vld_tfs = {
300 "Res vld is NOT set",
304 dissect_rsp_flags(proto_tree *parent_tree, tvbuff_t *tvb, int offset)
306 proto_item *item = NULL;
307 proto_tree *tree = NULL;
308 gboolean bidi_resid_present=FALSE;
312 item = proto_tree_add_item(parent_tree, hf_fcp_rspflags, tvb, offset, 1, TRUE);
313 tree = proto_item_add_subtree(item, ett_fcp_rsp_flags);
316 flags = tvb_get_guint8 (tvb, offset);
319 proto_item_append_text(item, " (No values set)");
322 proto_tree_add_boolean(tree, hf_fcp_rsp_flags_bidi, tvb, offset, 1, flags);
324 bidi_resid_present=TRUE;
325 proto_item_append_text(item, " BIDI_RSP");
326 if (flags & (~( 0x80 )))
327 proto_item_append_text(item, ",");
331 /* these two bits are only defined if the bidi bit is set */
332 if(bidi_resid_present){
333 /* BIDI READ RESID UNDER */
334 proto_tree_add_boolean(tree, hf_fcp_rsp_flags_bidi_rru, tvb, offset, 1, flags);
336 proto_item_append_text(item, " BIDI_RRU");
337 if (flags & (~( 0x40 )))
338 proto_item_append_text(item, ",");
342 /* BIDI READ RESID OVER */
343 proto_tree_add_boolean(tree, hf_fcp_rsp_flags_bidi_rro, tvb, offset, 1, flags);
345 proto_item_append_text(item, " BIDI_RRO");
346 if (flags & (~( 0x20 )))
347 proto_item_append_text(item, ",");
353 proto_tree_add_boolean(tree, hf_fcp_rsp_flags_conf_req, tvb, offset, 1, flags);
355 proto_item_append_text(item, " CONF REQ");
356 if (flags & (~( 0x10 )))
357 proto_item_append_text(item, ",");
362 proto_tree_add_boolean(tree, hf_fcp_rsp_flags_resid_under, tvb, offset, 1, flags);
364 proto_item_append_text(item, " RESID UNDER");
365 if (flags & (~( 0x08 )))
366 proto_item_append_text(item, ",");
371 proto_tree_add_boolean(tree, hf_fcp_rsp_flags_resid_over, tvb, offset, 1, flags);
373 proto_item_append_text(item, " RESID OVER");
374 if (flags & (~( 0x04 )))
375 proto_item_append_text(item, ",");
380 proto_tree_add_boolean(tree, hf_fcp_rsp_flags_sns_vld, tvb, offset, 1, flags);
382 proto_item_append_text(item, " SNS VLD");
383 if (flags & (~( 0x02 )))
384 proto_item_append_text(item, ",");
389 proto_tree_add_boolean(tree, hf_fcp_rsp_flags_res_vld, tvb, offset, 1, flags);
391 proto_item_append_text(item, " RES VLD");
392 if (flags & (~( 0x01 )))
393 proto_item_append_text(item, ",");
398 proto_item_append_text(item, " Unknown bitmap value 0x%x", flags);
403 dissect_fcp_cmnd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, proto_tree *tree, conversation_t *conversation, fc_hdr *fchdr, fcp_conv_data_t *fcp_conv_data)
408 guint8 flags, rwflags, lun0;
411 int tvb_len, tvb_rlen;
412 itl_nexus_t *itl=NULL;
413 proto_item *hidden_item;
415 /* Determine the length of the FCP part of the packet */
416 flags = tvb_get_guint8 (tvb, offset+10);
418 add_len = tvb_get_guint8 (tvb, offset+11) & 0x7C;
419 add_len = add_len >> 2;
421 len = FCP_DEF_CMND_LEN + add_len;
424 len = FCP_DEF_CMND_LEN;
427 hidden_item = proto_tree_add_uint(tree, hf_fcp_type, tvb, offset, 0, 0);
428 PROTO_ITEM_SET_HIDDEN(hidden_item);
430 lun0 = tvb_get_guint8 (tvb, offset);
432 /* Display single-level LUNs in decimal for clarity */
433 /* I'm taking a shortcut here by assuming that if the first byte of the
434 * LUN field is 0, it is a single-level LUN. This is not true. For a
435 * real single-level LUN, all 8 bytes except byte 1 must be 0.
438 proto_tree_add_item(tree, hf_fcp_multilun, tvb, offset, 8, 0);
439 lun=tvb_get_guint8(tvb, offset)&0x3f;
441 lun|=tvb_get_guint8(tvb, offset+1);
443 proto_tree_add_item(tree, hf_fcp_singlelun, tvb, offset+1,
445 lun=tvb_get_guint8(tvb, offset+1);
449 fchdr->itlq->lun=lun;
451 itl=(itl_nexus_t *)se_tree_lookup32(fcp_conv_data->luns, lun);
453 itl=se_alloc(sizeof(itl_nexus_t));
455 itl->conversation=conversation;
456 se_tree_insert32(fcp_conv_data->luns, lun, itl);
459 proto_tree_add_item(tree, hf_fcp_crn, tvb, offset+8, 1, 0);
460 proto_tree_add_item(tree, hf_fcp_taskattr, tvb, offset+9, 1, 0);
461 dissect_task_mgmt_flags(pinfo, tree, tvb, offset+10);
462 proto_tree_add_item(tree, hf_fcp_addlcdblen, tvb, offset+11, 1, 0);
463 rwflags=tvb_get_guint8(tvb, offset+11);
466 fchdr->itlq->task_flags|=SCSI_DATA_READ;
469 fchdr->itlq->task_flags|=SCSI_DATA_WRITE;
472 proto_tree_add_item(tree, hf_fcp_rddata, tvb, offset+11, 1, 0);
473 proto_tree_add_item(tree, hf_fcp_wrdata, tvb, offset+11, 1, 0);
475 tvb_len=tvb_length_remaining(tvb, offset+12);
476 if(tvb_len>(16+add_len))
478 tvb_rlen=tvb_reported_length_remaining(tvb, offset+12);
479 if(tvb_rlen>(16+add_len))
481 cdb_tvb=tvb_new_subset(tvb, offset+12, tvb_len, tvb_rlen);
482 dissect_scsi_cdb(cdb_tvb, pinfo, parent_tree, SCSI_DEV_UNKNOWN, fchdr->itlq, itl);
484 proto_tree_add_item(tree, hf_fcp_dl, tvb, offset+12+16+add_len,
487 fchdr->itlq->data_length=tvb_get_ntohl(tvb, offset+12+16+add_len);
490 if( ((rwflags&0x03)==0x03)
491 && tvb_length_remaining(tvb, offset+12+16+add_len+4)>=4){
492 proto_tree_add_item(tree, hf_fcp_bidir_dl, tvb, offset+12+16+add_len+4,
495 fchdr->itlq->bidir_data_length=tvb_get_ntohl(tvb, offset+12+16+add_len+4);
503 dissect_fcp_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, conversation_t *conversation _U_, fc_hdr *fchdr, itl_nexus_t *itl)
505 dissect_scsi_payload(tvb, pinfo, parent_tree, FALSE, fchdr->itlq, itl, fchdr->relative_offset);
508 /* fcp-3 9.5 table 24 */
510 dissect_fcp_rspinfo(tvbuff_t *tvb, proto_tree *tree, int offset)
512 /* 3 reserved bytes */
516 proto_tree_add_item(tree, hf_fcp_rspcode, tvb, offset, 1, 0);
519 /* 4 reserved bytes */
524 dissect_fcp_rsp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, proto_tree *tree, conversation_t *conversation _U_, fc_hdr *fchdr, itl_nexus_t *itl)
531 proto_item *hidden_item;
533 status = tvb_get_guint8 (tvb, offset+11);
535 if (check_col (pinfo->cinfo, COL_INFO)) {
536 col_append_fstr (pinfo->cinfo, COL_INFO, ":%s",
537 val_to_str (status, scsi_status_val, "0x%x"));
540 hidden_item = proto_tree_add_uint(tree, hf_fcp_type, tvb, offset, 0, 0);
541 PROTO_ITEM_SET_HIDDEN(hidden_item);
543 /* 8 reserved bytes */
546 /* retry delay timer */
547 proto_tree_add_item(tree, hf_fcp_retry_delay_timer, tvb, offset, 2, 0);
551 flags = tvb_get_guint8 (tvb, offset);
552 dissect_rsp_flags(tree, tvb, offset);
555 /* scsi status code */
556 proto_tree_add_item(tree, hf_fcp_scsistatus, tvb, offset, 1, 0);
557 dissect_scsi_rsp(tvb, pinfo, parent_tree, fchdr->itlq, itl, tvb_get_guint8(tvb, offset));
562 proto_tree_add_item(tree, hf_fcp_resid, tvb, offset, 4, 0);
568 snslen=tvb_get_ntohl(tvb, offset);
569 proto_tree_add_uint(tree, hf_fcp_snslen, tvb, offset, 4,
574 /* response length */
576 rsplen=tvb_get_ntohl(tvb, offset);
577 proto_tree_add_uint(tree, hf_fcp_rsplen, tvb, offset, 4,
584 tvbuff_t *rspinfo_tvb;
586 rspinfo_tvb=tvb_new_subset(tvb, offset, MIN(rsplen, tvb_length_remaining(tvb, offset)), rsplen);
587 dissect_fcp_rspinfo(rspinfo_tvb, tree, 0);
596 sns_tvb=tvb_new_subset(tvb, offset, MIN(snslen, tvb_length_remaining(tvb, offset)), snslen);
597 dissect_scsi_snsinfo (sns_tvb, pinfo, parent_tree, 0,
604 /* bidir read resid (only present for bidirectional responses) */
607 proto_tree_add_item(tree, hf_fcp_bidir_resid, tvb, offset, 4, 0);
614 dissect_fcp_xfer_rdy(tvbuff_t *tvb, proto_tree *tree)
617 proto_item *hidden_item;
619 hidden_item = proto_tree_add_uint(tree, hf_fcp_type, tvb, offset, 0, 0);
620 PROTO_ITEM_SET_HIDDEN(hidden_item);
622 proto_tree_add_item(tree, hf_fcp_data_ro, tvb, offset, 4, 0);
623 proto_tree_add_item(tree, hf_fcp_burstlen, tvb, offset+4, 4, 0);
627 dissect_fcp_srr(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
631 r_ctl = pinfo->r_ctl & 0xf;
632 if (r_ctl == FCP_IU_UNSOL_CTL) { /* request */
633 proto_tree_add_item(tree, hf_fcp_srr_ox_id, tvb, 4, 2, FALSE);
634 proto_tree_add_item(tree, hf_fcp_srr_rx_id, tvb, 6, 2, FALSE);
635 proto_tree_add_item(tree, hf_fcp_data_ro, tvb, 8, 4, FALSE);
636 r_ctl = tvb_get_guint8(tvb, 12);
637 proto_tree_add_text(tree, tvb, 12, 1, "R_CTL: %s",
638 val_to_str(r_ctl, fcp_iu_val, "0x%02x"));
642 static const value_string fcp_els_iu_val[] = {
643 {FCP_IU_UNSOL_CTL , "FCP ELS Request"},
644 {FCP_IU_SOL_CTL , "FCP ELS Response"},
649 * Dissect FC-4 ELS for FCP.
652 dissect_fcp_els(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
656 op = tvb_get_guint8(tvb, 0);
657 col_add_str(pinfo->cinfo, COL_INFO, val_to_str(op, fc_els_proto_val, "0x%x"));
658 proto_tree_add_text(tree, tvb, 0, 1, "Opcode: %s",
659 val_to_str(op, fc_els_proto_val,
662 switch (op) { /* XXX should switch based on conv for LS_ACC */
664 dissect_fcp_srr(tvb, pinfo, tree);
667 call_dissector(data_handle, tvb, pinfo, tree);
673 dissect_fcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
676 proto_tree *fcp_tree = NULL;
679 fcp_conv_data_t *fcp_conv_data=NULL;
680 itl_nexus_t *itl=NULL;
683 fchdr=(fc_hdr *)pinfo->private_data;
685 /* Make entries in Protocol column and Info column on summary display */
686 col_set_str(pinfo->cinfo, COL_PROTOCOL, "FCP");
688 r_ctl = pinfo->r_ctl;
689 els = (r_ctl & 0xf0) == FC_RCTL_LINK_DATA;
692 if (check_col (pinfo->cinfo, COL_INFO)) {
693 col_add_str (pinfo->cinfo, COL_INFO,
694 val_to_str (r_ctl, els ? fcp_els_iu_val : fcp_iu_val,
699 ti = proto_tree_add_protocol_format(tree, proto_fcp, tvb, 0, -1,
702 els ? fcp_els_iu_val :
703 fcp_iu_val, "Unknown 0x%02x"));
704 fcp_tree = proto_item_add_subtree(ti, ett_fcp);
708 fcp_conv_data=conversation_get_proto_data(fchdr->conversation, proto_fcp);
710 fcp_conv_data=se_alloc(sizeof(fcp_conv_data_t));
711 fcp_conv_data->luns=se_tree_create_non_persistent(EMEM_TREE_TYPE_RED_BLACK, "FCP Luns");
712 conversation_add_proto_data(fchdr->conversation, proto_fcp, fcp_conv_data);
715 if((r_ctl!=FCP_IU_CMD) && (r_ctl!=FCP_IU_UNSOL_CTL)){
716 itl=(itl_nexus_t *)se_tree_lookup32(fcp_conv_data->luns, fchdr->itlq->lun);
719 /* put a request_in in all frames except the command frame */
720 if((r_ctl!=FCP_IU_CMD) && (r_ctl!=FCP_IU_UNSOL_CTL) &&
721 (fchdr->itlq->first_exchange_frame)){
723 it=proto_tree_add_uint(fcp_tree, hf_fcp_singlelun, tvb, 0, 0, fchdr->itlq->lun);
724 PROTO_ITEM_SET_GENERATED(it);
725 it=proto_tree_add_uint(fcp_tree, hf_fcp_request_in, tvb, 0, 0, fchdr->itlq->first_exchange_frame);
726 PROTO_ITEM_SET_GENERATED(it);
727 /* only put the response time in the actual response frame */
728 if(r_ctl==FCP_IU_RSP){
730 nstime_delta(&delta_ts, &pinfo->fd->abs_ts, &fchdr->itlq->fc_time);
731 it=proto_tree_add_time(ti, hf_fcp_time, tvb, 0, 0, &delta_ts);
732 PROTO_ITEM_SET_GENERATED(it);
735 /* put a response_in in all frames except the response frame */
736 if((r_ctl!=FCP_IU_RSP) && (r_ctl!=FCP_IU_SOL_CTL) &&
737 (fchdr->itlq->last_exchange_frame)){
739 it=proto_tree_add_uint(fcp_tree, hf_fcp_response_in, tvb, 0, 0, fchdr->itlq->last_exchange_frame);
740 PROTO_ITEM_SET_GENERATED(it);
744 dissect_fcp_els(tvb, pinfo, fcp_tree);
750 dissect_fcp_data(tvb, pinfo, tree, fchdr->conversation, fchdr, itl);
753 /* Nothing to be done here */
755 case FCP_IU_XFER_RDY:
756 dissect_fcp_xfer_rdy(tvb, fcp_tree);
759 dissect_fcp_cmnd(tvb, pinfo, tree, fcp_tree, fchdr->conversation, fchdr, fcp_conv_data);
762 dissect_fcp_rsp(tvb, pinfo, tree, fcp_tree, fchdr->conversation, fchdr, itl);
765 call_dissector(data_handle, tvb, pinfo, tree);
768 /*xxx once the subdissectors return bytes consumed: proto_item_set_end(ti, tvb, offset);*/
772 /* Register the protocol with Wireshark */
774 /* this format is require because a script is used to build the C function
775 that calls all the protocol registration.
779 proto_register_fcp (void)
782 /* Setup list of header fields See Section 1.6.1 for details*/
783 static hf_register_info hf[] = {
785 {"Field to branch off to SCSI", "fcp.type", FT_UINT8, BASE_HEX, NULL,
788 {"Multi-Level LUN", "fcp.multilun", FT_BYTES, BASE_NONE, NULL, 0x0,
791 {"LUN", "fcp.lun", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}},
793 {"Command Ref Num", "fcp.crn", FT_UINT8, BASE_DEC, NULL, 0x0, NULL,
796 {"Task Attribute", "fcp.taskattr", FT_UINT8, BASE_HEX,
797 VALS (fcp_task_attr_val), 0x7, NULL, HFILL}},
799 {"Task Management Flags", "fcp.taskmgmt", FT_UINT8, BASE_HEX, NULL,
801 { &hf_fcp_addlcdblen,
802 {"Additional CDB Length", "fcp.addlcdblen", FT_UINT8, BASE_DEC, NULL,
805 {"RDDATA", "fcp.rddata", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL}},
807 {"WRDATA", "fcp.wrdata", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL}},
809 {"FCP_DL", "fcp.dl", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
811 {"FCP_BIDIRECTIONAL_READ_DL", "fcp.bidir_dl", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
813 {"FCP_DATA_RO", "fcp.data_ro", FT_UINT32, BASE_DEC, NULL, 0x0, NULL,
816 {"Burst Length", "fcp.burstlen", FT_UINT32, BASE_DEC, NULL, 0x0, NULL,
818 { &hf_fcp_retry_delay_timer,
819 {"Retry Delay Timer", "fcp.rsp.retry_delay_timer", FT_UINT16, BASE_DEC, NULL, 0x0, NULL,
822 {"FCP_RSP Flags", "fcp.rspflags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL,
825 {"FCP_RESID", "fcp.resid", FT_UINT32, BASE_DEC, NULL, 0x0, NULL,
827 { &hf_fcp_bidir_resid,
828 {"Bidirectional Read Resid", "fcp.bidir_resid", FT_UINT32, BASE_DEC, NULL, 0x0, NULL,
831 {"FCP_SNS_LEN", "fcp.snslen", FT_UINT32, BASE_DEC, NULL, 0x0, NULL,
834 {"FCP_RSP_LEN", "fcp.rsplen", FT_UINT32, BASE_DEC, NULL, 0x0, NULL,
837 {"RSP_CODE", "fcp.rspcode", FT_UINT8, BASE_HEX,
838 VALS (fcp_rsp_code_val), 0x0, NULL, HFILL}},
839 { &hf_fcp_scsistatus,
840 {"SCSI Status", "fcp.status", FT_UINT8, BASE_HEX,
841 VALS (scsi_status_val), 0x0, NULL, HFILL}},
842 { &hf_fcp_mgmt_flags_obsolete,
843 { "Obsolete", "fcp.mgmt.flags.obsolete", FT_BOOLEAN, 8, TFS(&fcp_mgmt_flags_obsolete_tfs), 0x80, NULL, HFILL }},
844 { &hf_fcp_mgmt_flags_clear_aca,
845 { "Clear ACA", "fcp.mgmt.flags.clear_aca", FT_BOOLEAN, 8, TFS(&fcp_mgmt_flags_clear_aca_tfs), 0x40, NULL, HFILL }},
846 { &hf_fcp_mgmt_flags_target_reset,
847 { "Target Reset", "fcp.mgmt.flags.target_reset", FT_BOOLEAN, 8, TFS(&fcp_mgmt_flags_target_reset_tfs), 0x20, NULL, HFILL }},
848 { &hf_fcp_mgmt_flags_lu_reset,
849 { "LU Reset", "fcp.mgmt.flags.lu_reset", FT_BOOLEAN, 8, TFS(&fcp_mgmt_flags_lu_reset_tfs), 0x10, NULL, HFILL }},
850 { &hf_fcp_mgmt_flags_rsvd,
851 { "Rsvd", "fcp.mgmt.flags.rsvd", FT_BOOLEAN, 8, TFS(&fcp_mgmt_flags_rsvd_tfs), 0x08, NULL, HFILL }},
852 { &hf_fcp_mgmt_flags_clear_task_set,
853 { "Clear Task Set", "fcp.mgmt.flags.clear_task_set", FT_BOOLEAN, 8, TFS(&fcp_mgmt_flags_clear_task_set_tfs), 0x04, NULL, HFILL }},
854 { &hf_fcp_mgmt_flags_abort_task_set,
855 { "Abort Task Set", "fcp.mgmt.flags.abort_task_set", FT_BOOLEAN, 8, TFS(&fcp_mgmt_flags_abort_task_set_tfs), 0x02, NULL, HFILL }},
856 { &hf_fcp_rsp_flags_bidi,
857 { "Bidi Rsp", "fcp.rsp.flags.bidi", FT_BOOLEAN, 8, TFS(&fcp_rsp_flags_bidi_tfs), 0x80, NULL, HFILL }},
858 { &hf_fcp_rsp_flags_bidi_rru,
859 { "Bidi Read Resid Under", "fcp.rsp.flags.bidi_rru", FT_BOOLEAN, 8, TFS(&fcp_rsp_flags_bidi_rru_tfs), 0x40, NULL, HFILL }},
860 { &hf_fcp_rsp_flags_bidi_rro,
861 { "Bidi Read Resid Over", "fcp.rsp.flags.bidi_rro", FT_BOOLEAN, 8, TFS(&fcp_rsp_flags_bidi_rro_tfs), 0x20, NULL, HFILL }},
862 { &hf_fcp_rsp_flags_conf_req,
863 { "Conf Req", "fcp.rsp.flags.conf_req", FT_BOOLEAN, 8, TFS(&fcp_rsp_flags_conf_req_tfs), 0x10, NULL, HFILL }},
864 { &hf_fcp_rsp_flags_resid_under,
865 { "Resid Under", "fcp.rsp.flags.resid_under", FT_BOOLEAN, 8, TFS(&fcp_rsp_flags_resid_under_tfs), 0x08, NULL, HFILL }},
866 { &hf_fcp_rsp_flags_resid_over,
867 { "Resid Over", "fcp.rsp.flags.resid_over", FT_BOOLEAN, 8, TFS(&fcp_rsp_flags_resid_over_tfs), 0x04, NULL, HFILL }},
868 { &hf_fcp_rsp_flags_sns_vld,
869 { "SNS Vld", "fcp.rsp.flags.sns_vld", FT_BOOLEAN, 8, TFS(&fcp_rsp_flags_sns_vld_tfs), 0x02, NULL, HFILL }},
870 { &hf_fcp_rsp_flags_res_vld,
871 { "RES Vld", "fcp.rsp.flags.res_vld", FT_BOOLEAN, 8, TFS(&fcp_rsp_flags_res_vld_tfs), 0x01, NULL, HFILL }},
872 { &hf_fcp_request_in,
873 { "Request In", "fcp.request_in", FT_FRAMENUM, BASE_NONE, NULL,
874 0, "The frame number for the request", HFILL }},
875 { &hf_fcp_response_in,
876 { "Response In", "fcp.response_in", FT_FRAMENUM, BASE_NONE, NULL,
877 0, "The frame number of the response", HFILL }},
879 { "Time from FCP_CMND", "fcp.time", FT_RELATIVE_TIME, BASE_NONE, NULL,
880 0, "Time since the FCP_CMND frame", HFILL }},
882 {"Opcode", "fcp.els.op", FT_UINT8, BASE_HEX, NULL, 0x0, NULL,
885 {"OX_ID", "fcp.els.srr.ox_id", FT_UINT16, BASE_HEX, NULL, 0x0, NULL,
888 {"RX_ID", "fcp.els.srr.rx_id", FT_UINT16, BASE_HEX, NULL, 0x0, NULL,
891 {"R_CTL", "fcp.els.srr.r_ctl", FT_UINT8, BASE_HEX, NULL, 0x0, NULL,
895 /* Setup protocol subtree array */
896 static gint *ett[] = {
902 /* Register the protocol name and description */
903 proto_fcp = proto_register_protocol("Fibre Channel Protocol for SCSI",
906 /* Required function calls to register the header fields and subtrees used */
907 proto_register_field_array(proto_fcp, hf, array_length(hf));
908 proto_register_subtree_array(ett, array_length(ett));
909 fcp_dissector = register_dissector_table ("fcp.type", "FCP Type", FT_UINT8,
913 /* If this dissector uses sub-dissector registration add a registration routine.
914 This format is required because a script is used to find these routines and
915 create the code that calls these routines.
918 proto_reg_handoff_fcp (void)
920 dissector_handle_t fcp_handle;
922 fcp_handle = create_dissector_handle (dissect_fcp, proto_fcp);
923 dissector_add("fc.ftype", FC_FTYPE_SCSI, fcp_handle);
925 data_handle = find_dissector ("data");