1 /*******************************************************************************
2 * This file contains main functions related to iSCSI Parameter negotiation.
4 * (c) Copyright 2007-2013 Datera, Inc.
6 * Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 ******************************************************************************/
19 #include <linux/slab.h>
20 #include <linux/uio.h> /* struct kvec */
21 #include <target/iscsi/iscsi_target_core.h>
22 #include "iscsi_target_util.h"
23 #include "iscsi_target_parameters.h"
25 int iscsi_login_rx_data(
26 struct iscsi_conn *conn,
33 memset(&iov, 0, sizeof(struct kvec));
37 rx_got = rx_data(conn, &iov, 1, length);
38 if (rx_got != length) {
39 pr_err("rx_data returned %d, expecting %d.\n",
47 int iscsi_login_tx_data(
48 struct iscsi_conn *conn,
53 int length, tx_sent, iov_cnt = 1;
56 length = (ISCSI_HDR_LEN + text_length);
58 memset(&iov[0], 0, 2 * sizeof(struct kvec));
59 iov[0].iov_len = ISCSI_HDR_LEN;
60 iov[0].iov_base = pdu_buf;
62 if (text_buf && text_length) {
63 iov[1].iov_len = text_length;
64 iov[1].iov_base = text_buf;
68 tx_sent = tx_data(conn, &iov[0], iov_cnt, length);
69 if (tx_sent != length) {
70 pr_err("tx_data returned %d, expecting %d.\n",
78 void iscsi_dump_conn_ops(struct iscsi_conn_ops *conn_ops)
80 pr_debug("HeaderDigest: %s\n", (conn_ops->HeaderDigest) ?
82 pr_debug("DataDigest: %s\n", (conn_ops->DataDigest) ?
84 pr_debug("MaxRecvDataSegmentLength: %u\n",
85 conn_ops->MaxRecvDataSegmentLength);
88 void iscsi_dump_sess_ops(struct iscsi_sess_ops *sess_ops)
90 pr_debug("InitiatorName: %s\n", sess_ops->InitiatorName);
91 pr_debug("InitiatorAlias: %s\n", sess_ops->InitiatorAlias);
92 pr_debug("TargetName: %s\n", sess_ops->TargetName);
93 pr_debug("TargetAlias: %s\n", sess_ops->TargetAlias);
94 pr_debug("TargetPortalGroupTag: %hu\n",
95 sess_ops->TargetPortalGroupTag);
96 pr_debug("MaxConnections: %hu\n", sess_ops->MaxConnections);
97 pr_debug("InitialR2T: %s\n",
98 (sess_ops->InitialR2T) ? "Yes" : "No");
99 pr_debug("ImmediateData: %s\n", (sess_ops->ImmediateData) ?
101 pr_debug("MaxBurstLength: %u\n", sess_ops->MaxBurstLength);
102 pr_debug("FirstBurstLength: %u\n", sess_ops->FirstBurstLength);
103 pr_debug("DefaultTime2Wait: %hu\n", sess_ops->DefaultTime2Wait);
104 pr_debug("DefaultTime2Retain: %hu\n",
105 sess_ops->DefaultTime2Retain);
106 pr_debug("MaxOutstandingR2T: %hu\n",
107 sess_ops->MaxOutstandingR2T);
108 pr_debug("DataPDUInOrder: %s\n",
109 (sess_ops->DataPDUInOrder) ? "Yes" : "No");
110 pr_debug("DataSequenceInOrder: %s\n",
111 (sess_ops->DataSequenceInOrder) ? "Yes" : "No");
112 pr_debug("ErrorRecoveryLevel: %hu\n",
113 sess_ops->ErrorRecoveryLevel);
114 pr_debug("SessionType: %s\n", (sess_ops->SessionType) ?
115 "Discovery" : "Normal");
118 void iscsi_print_params(struct iscsi_param_list *param_list)
120 struct iscsi_param *param;
122 list_for_each_entry(param, ¶m_list->param_list, p_list)
123 pr_debug("%s: %s\n", param->name, param->value);
126 static struct iscsi_param *iscsi_set_default_param(struct iscsi_param_list *param_list,
127 char *name, char *value, u8 phase, u8 scope, u8 sender,
128 u16 type_range, u8 use)
130 struct iscsi_param *param = NULL;
132 param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL);
134 pr_err("Unable to allocate memory for parameter.\n");
137 INIT_LIST_HEAD(¶m->p_list);
139 param->name = kstrdup(name, GFP_KERNEL);
141 pr_err("Unable to allocate memory for parameter name.\n");
145 param->value = kstrdup(value, GFP_KERNEL);
147 pr_err("Unable to allocate memory for parameter value.\n");
151 param->phase = phase;
152 param->scope = scope;
153 param->sender = sender;
155 param->type_range = type_range;
157 switch (param->type_range) {
158 case TYPERANGE_BOOL_AND:
159 param->type = TYPE_BOOL_AND;
161 case TYPERANGE_BOOL_OR:
162 param->type = TYPE_BOOL_OR;
164 case TYPERANGE_0_TO_2:
165 case TYPERANGE_0_TO_3600:
166 case TYPERANGE_0_TO_32767:
167 case TYPERANGE_0_TO_65535:
168 case TYPERANGE_1_TO_65535:
169 case TYPERANGE_2_TO_3600:
170 case TYPERANGE_512_TO_16777215:
171 param->type = TYPE_NUMBER;
174 case TYPERANGE_DIGEST:
175 param->type = TYPE_VALUE_LIST | TYPE_STRING;
177 case TYPERANGE_ISCSINAME:
178 case TYPERANGE_SESSIONTYPE:
179 case TYPERANGE_TARGETADDRESS:
181 param->type = TYPE_STRING;
184 pr_err("Unknown type_range 0x%02x\n",
188 list_add_tail(¶m->p_list, ¶m_list->param_list);
201 /* #warning Add extension keys */
202 int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr)
204 struct iscsi_param *param = NULL;
205 struct iscsi_param_list *pl;
207 pl = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
209 pr_err("Unable to allocate memory for"
210 " struct iscsi_param_list.\n");
213 INIT_LIST_HEAD(&pl->param_list);
214 INIT_LIST_HEAD(&pl->extra_response_list);
217 * The format for setting the initial parameter definitions are:
227 param = iscsi_set_default_param(pl, AUTHMETHOD, INITIAL_AUTHMETHOD,
228 PHASE_SECURITY, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
229 TYPERANGE_AUTH, USE_INITIAL_ONLY);
233 param = iscsi_set_default_param(pl, HEADERDIGEST, INITIAL_HEADERDIGEST,
234 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
235 TYPERANGE_DIGEST, USE_INITIAL_ONLY);
239 param = iscsi_set_default_param(pl, DATADIGEST, INITIAL_DATADIGEST,
240 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
241 TYPERANGE_DIGEST, USE_INITIAL_ONLY);
245 param = iscsi_set_default_param(pl, MAXCONNECTIONS,
246 INITIAL_MAXCONNECTIONS, PHASE_OPERATIONAL,
247 SCOPE_SESSION_WIDE, SENDER_BOTH,
248 TYPERANGE_1_TO_65535, USE_LEADING_ONLY);
252 param = iscsi_set_default_param(pl, SENDTARGETS, INITIAL_SENDTARGETS,
253 PHASE_FFP0, SCOPE_SESSION_WIDE, SENDER_INITIATOR,
258 param = iscsi_set_default_param(pl, TARGETNAME, INITIAL_TARGETNAME,
259 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_BOTH,
260 TYPERANGE_ISCSINAME, USE_ALL);
264 param = iscsi_set_default_param(pl, INITIATORNAME,
265 INITIAL_INITIATORNAME, PHASE_DECLARATIVE,
266 SCOPE_SESSION_WIDE, SENDER_INITIATOR,
267 TYPERANGE_ISCSINAME, USE_INITIAL_ONLY);
271 param = iscsi_set_default_param(pl, TARGETALIAS, INITIAL_TARGETALIAS,
272 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET,
273 TYPERANGE_UTF8, USE_ALL);
277 param = iscsi_set_default_param(pl, INITIATORALIAS,
278 INITIAL_INITIATORALIAS, PHASE_DECLARATIVE,
279 SCOPE_SESSION_WIDE, SENDER_INITIATOR, TYPERANGE_UTF8,
284 param = iscsi_set_default_param(pl, TARGETADDRESS,
285 INITIAL_TARGETADDRESS, PHASE_DECLARATIVE,
286 SCOPE_SESSION_WIDE, SENDER_TARGET,
287 TYPERANGE_TARGETADDRESS, USE_ALL);
291 param = iscsi_set_default_param(pl, TARGETPORTALGROUPTAG,
292 INITIAL_TARGETPORTALGROUPTAG,
293 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET,
294 TYPERANGE_0_TO_65535, USE_INITIAL_ONLY);
298 param = iscsi_set_default_param(pl, INITIALR2T, INITIAL_INITIALR2T,
299 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
300 TYPERANGE_BOOL_OR, USE_LEADING_ONLY);
304 param = iscsi_set_default_param(pl, IMMEDIATEDATA,
305 INITIAL_IMMEDIATEDATA, PHASE_OPERATIONAL,
306 SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_AND,
311 param = iscsi_set_default_param(pl, MAXXMITDATASEGMENTLENGTH,
312 INITIAL_MAXXMITDATASEGMENTLENGTH,
313 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
314 TYPERANGE_512_TO_16777215, USE_ALL);
318 param = iscsi_set_default_param(pl, MAXRECVDATASEGMENTLENGTH,
319 INITIAL_MAXRECVDATASEGMENTLENGTH,
320 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
321 TYPERANGE_512_TO_16777215, USE_ALL);
325 param = iscsi_set_default_param(pl, MAXBURSTLENGTH,
326 INITIAL_MAXBURSTLENGTH, PHASE_OPERATIONAL,
327 SCOPE_SESSION_WIDE, SENDER_BOTH,
328 TYPERANGE_512_TO_16777215, USE_LEADING_ONLY);
332 param = iscsi_set_default_param(pl, FIRSTBURSTLENGTH,
333 INITIAL_FIRSTBURSTLENGTH,
334 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
335 TYPERANGE_512_TO_16777215, USE_LEADING_ONLY);
339 param = iscsi_set_default_param(pl, DEFAULTTIME2WAIT,
340 INITIAL_DEFAULTTIME2WAIT,
341 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
342 TYPERANGE_0_TO_3600, USE_LEADING_ONLY);
346 param = iscsi_set_default_param(pl, DEFAULTTIME2RETAIN,
347 INITIAL_DEFAULTTIME2RETAIN,
348 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
349 TYPERANGE_0_TO_3600, USE_LEADING_ONLY);
353 param = iscsi_set_default_param(pl, MAXOUTSTANDINGR2T,
354 INITIAL_MAXOUTSTANDINGR2T,
355 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
356 TYPERANGE_1_TO_65535, USE_LEADING_ONLY);
360 param = iscsi_set_default_param(pl, DATAPDUINORDER,
361 INITIAL_DATAPDUINORDER, PHASE_OPERATIONAL,
362 SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_OR,
367 param = iscsi_set_default_param(pl, DATASEQUENCEINORDER,
368 INITIAL_DATASEQUENCEINORDER,
369 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
370 TYPERANGE_BOOL_OR, USE_LEADING_ONLY);
374 param = iscsi_set_default_param(pl, ERRORRECOVERYLEVEL,
375 INITIAL_ERRORRECOVERYLEVEL,
376 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
377 TYPERANGE_0_TO_2, USE_LEADING_ONLY);
381 param = iscsi_set_default_param(pl, SESSIONTYPE, INITIAL_SESSIONTYPE,
382 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_INITIATOR,
383 TYPERANGE_SESSIONTYPE, USE_LEADING_ONLY);
387 param = iscsi_set_default_param(pl, IFMARKER, INITIAL_IFMARKER,
388 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
389 TYPERANGE_BOOL_AND, USE_INITIAL_ONLY);
393 param = iscsi_set_default_param(pl, OFMARKER, INITIAL_OFMARKER,
394 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
395 TYPERANGE_BOOL_AND, USE_INITIAL_ONLY);
399 param = iscsi_set_default_param(pl, IFMARKINT, INITIAL_IFMARKINT,
400 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
401 TYPERANGE_UTF8, USE_INITIAL_ONLY);
405 param = iscsi_set_default_param(pl, OFMARKINT, INITIAL_OFMARKINT,
406 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
407 TYPERANGE_UTF8, USE_INITIAL_ONLY);
412 * Extra parameters for ISER from RFC-5046
414 param = iscsi_set_default_param(pl, RDMAEXTENSIONS, INITIAL_RDMAEXTENSIONS,
415 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
416 TYPERANGE_BOOL_AND, USE_LEADING_ONLY);
420 param = iscsi_set_default_param(pl, INITIATORRECVDATASEGMENTLENGTH,
421 INITIAL_INITIATORRECVDATASEGMENTLENGTH,
422 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
423 TYPERANGE_512_TO_16777215, USE_ALL);
427 param = iscsi_set_default_param(pl, TARGETRECVDATASEGMENTLENGTH,
428 INITIAL_TARGETRECVDATASEGMENTLENGTH,
429 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
430 TYPERANGE_512_TO_16777215, USE_ALL);
434 *param_list_ptr = pl;
437 iscsi_release_param_list(pl);
441 int iscsi_set_keys_to_negotiate(
442 struct iscsi_param_list *param_list,
445 struct iscsi_param *param;
447 param_list->iser = iser;
449 list_for_each_entry(param, ¶m_list->param_list, p_list) {
451 if (!strcmp(param->name, AUTHMETHOD)) {
452 SET_PSTATE_NEGOTIATE(param);
453 } else if (!strcmp(param->name, HEADERDIGEST)) {
455 SET_PSTATE_NEGOTIATE(param);
456 } else if (!strcmp(param->name, DATADIGEST)) {
458 SET_PSTATE_NEGOTIATE(param);
459 } else if (!strcmp(param->name, MAXCONNECTIONS)) {
460 SET_PSTATE_NEGOTIATE(param);
461 } else if (!strcmp(param->name, TARGETNAME)) {
463 } else if (!strcmp(param->name, INITIATORNAME)) {
465 } else if (!strcmp(param->name, TARGETALIAS)) {
467 SET_PSTATE_NEGOTIATE(param);
468 } else if (!strcmp(param->name, INITIATORALIAS)) {
470 } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
471 SET_PSTATE_NEGOTIATE(param);
472 } else if (!strcmp(param->name, INITIALR2T)) {
473 SET_PSTATE_NEGOTIATE(param);
474 } else if (!strcmp(param->name, IMMEDIATEDATA)) {
475 SET_PSTATE_NEGOTIATE(param);
476 } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
478 SET_PSTATE_NEGOTIATE(param);
479 } else if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
481 } else if (!strcmp(param->name, MAXBURSTLENGTH)) {
482 SET_PSTATE_NEGOTIATE(param);
483 } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
484 SET_PSTATE_NEGOTIATE(param);
485 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
486 SET_PSTATE_NEGOTIATE(param);
487 } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
488 SET_PSTATE_NEGOTIATE(param);
489 } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
490 SET_PSTATE_NEGOTIATE(param);
491 } else if (!strcmp(param->name, DATAPDUINORDER)) {
492 SET_PSTATE_NEGOTIATE(param);
493 } else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
494 SET_PSTATE_NEGOTIATE(param);
495 } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
496 SET_PSTATE_NEGOTIATE(param);
497 } else if (!strcmp(param->name, SESSIONTYPE)) {
498 SET_PSTATE_NEGOTIATE(param);
499 } else if (!strcmp(param->name, IFMARKER)) {
500 SET_PSTATE_REJECT(param);
501 } else if (!strcmp(param->name, OFMARKER)) {
502 SET_PSTATE_REJECT(param);
503 } else if (!strcmp(param->name, IFMARKINT)) {
504 SET_PSTATE_REJECT(param);
505 } else if (!strcmp(param->name, OFMARKINT)) {
506 SET_PSTATE_REJECT(param);
507 } else if (!strcmp(param->name, RDMAEXTENSIONS)) {
509 SET_PSTATE_NEGOTIATE(param);
510 } else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) {
512 SET_PSTATE_NEGOTIATE(param);
513 } else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) {
515 SET_PSTATE_NEGOTIATE(param);
522 int iscsi_set_keys_irrelevant_for_discovery(
523 struct iscsi_param_list *param_list)
525 struct iscsi_param *param;
527 list_for_each_entry(param, ¶m_list->param_list, p_list) {
528 if (!strcmp(param->name, MAXCONNECTIONS))
529 param->state &= ~PSTATE_NEGOTIATE;
530 else if (!strcmp(param->name, INITIALR2T))
531 param->state &= ~PSTATE_NEGOTIATE;
532 else if (!strcmp(param->name, IMMEDIATEDATA))
533 param->state &= ~PSTATE_NEGOTIATE;
534 else if (!strcmp(param->name, MAXBURSTLENGTH))
535 param->state &= ~PSTATE_NEGOTIATE;
536 else if (!strcmp(param->name, FIRSTBURSTLENGTH))
537 param->state &= ~PSTATE_NEGOTIATE;
538 else if (!strcmp(param->name, MAXOUTSTANDINGR2T))
539 param->state &= ~PSTATE_NEGOTIATE;
540 else if (!strcmp(param->name, DATAPDUINORDER))
541 param->state &= ~PSTATE_NEGOTIATE;
542 else if (!strcmp(param->name, DATASEQUENCEINORDER))
543 param->state &= ~PSTATE_NEGOTIATE;
544 else if (!strcmp(param->name, ERRORRECOVERYLEVEL))
545 param->state &= ~PSTATE_NEGOTIATE;
546 else if (!strcmp(param->name, DEFAULTTIME2WAIT))
547 param->state &= ~PSTATE_NEGOTIATE;
548 else if (!strcmp(param->name, DEFAULTTIME2RETAIN))
549 param->state &= ~PSTATE_NEGOTIATE;
550 else if (!strcmp(param->name, IFMARKER))
551 param->state &= ~PSTATE_NEGOTIATE;
552 else if (!strcmp(param->name, OFMARKER))
553 param->state &= ~PSTATE_NEGOTIATE;
554 else if (!strcmp(param->name, IFMARKINT))
555 param->state &= ~PSTATE_NEGOTIATE;
556 else if (!strcmp(param->name, OFMARKINT))
557 param->state &= ~PSTATE_NEGOTIATE;
558 else if (!strcmp(param->name, RDMAEXTENSIONS))
559 param->state &= ~PSTATE_NEGOTIATE;
560 else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH))
561 param->state &= ~PSTATE_NEGOTIATE;
562 else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH))
563 param->state &= ~PSTATE_NEGOTIATE;
569 int iscsi_copy_param_list(
570 struct iscsi_param_list **dst_param_list,
571 struct iscsi_param_list *src_param_list,
574 struct iscsi_param *param = NULL;
575 struct iscsi_param *new_param = NULL;
576 struct iscsi_param_list *param_list = NULL;
578 param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
580 pr_err("Unable to allocate memory for struct iscsi_param_list.\n");
583 INIT_LIST_HEAD(¶m_list->param_list);
584 INIT_LIST_HEAD(¶m_list->extra_response_list);
586 list_for_each_entry(param, &src_param_list->param_list, p_list) {
587 if (!leading && (param->scope & SCOPE_SESSION_WIDE)) {
588 if ((strcmp(param->name, "TargetName") != 0) &&
589 (strcmp(param->name, "InitiatorName") != 0) &&
590 (strcmp(param->name, "TargetPortalGroupTag") != 0))
594 new_param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL);
596 pr_err("Unable to allocate memory for struct iscsi_param.\n");
600 new_param->name = kstrdup(param->name, GFP_KERNEL);
601 new_param->value = kstrdup(param->value, GFP_KERNEL);
602 if (!new_param->value || !new_param->name) {
603 kfree(new_param->value);
604 kfree(new_param->name);
606 pr_err("Unable to allocate memory for parameter name/value.\n");
610 new_param->set_param = param->set_param;
611 new_param->phase = param->phase;
612 new_param->scope = param->scope;
613 new_param->sender = param->sender;
614 new_param->type = param->type;
615 new_param->use = param->use;
616 new_param->type_range = param->type_range;
618 list_add_tail(&new_param->p_list, ¶m_list->param_list);
621 if (!list_empty(¶m_list->param_list)) {
622 *dst_param_list = param_list;
624 pr_err("No parameters allocated.\n");
631 iscsi_release_param_list(param_list);
635 static void iscsi_release_extra_responses(struct iscsi_param_list *param_list)
637 struct iscsi_extra_response *er, *er_tmp;
639 list_for_each_entry_safe(er, er_tmp, ¶m_list->extra_response_list,
641 list_del(&er->er_list);
646 void iscsi_release_param_list(struct iscsi_param_list *param_list)
648 struct iscsi_param *param, *param_tmp;
650 list_for_each_entry_safe(param, param_tmp, ¶m_list->param_list,
652 list_del(¶m->p_list);
659 iscsi_release_extra_responses(param_list);
664 struct iscsi_param *iscsi_find_param_from_key(
666 struct iscsi_param_list *param_list)
668 struct iscsi_param *param;
670 if (!key || !param_list) {
671 pr_err("Key or parameter list pointer is NULL.\n");
675 list_for_each_entry(param, ¶m_list->param_list, p_list) {
676 if (!strcmp(key, param->name))
680 pr_err("Unable to locate key \"%s\".\n", key);
683 EXPORT_SYMBOL(iscsi_find_param_from_key);
685 int iscsi_extract_key_value(char *textbuf, char **key, char **value)
687 *value = strchr(textbuf, '=');
689 pr_err("Unable to locate \"=\" separator for key,"
690 " ignoring request.\n");
701 int iscsi_update_param_value(struct iscsi_param *param, char *value)
705 param->value = kstrdup(value, GFP_KERNEL);
707 pr_err("Unable to allocate memory for value.\n");
711 pr_debug("iSCSI Parameter updated to %s=%s\n",
712 param->name, param->value);
716 static int iscsi_add_notunderstood_response(
719 struct iscsi_param_list *param_list)
721 struct iscsi_extra_response *extra_response;
723 if (strlen(value) > VALUE_MAXLEN) {
724 pr_err("Value for notunderstood key \"%s\" exceeds %d,"
725 " protocol error.\n", key, VALUE_MAXLEN);
729 extra_response = kzalloc(sizeof(struct iscsi_extra_response), GFP_KERNEL);
730 if (!extra_response) {
731 pr_err("Unable to allocate memory for"
732 " struct iscsi_extra_response.\n");
735 INIT_LIST_HEAD(&extra_response->er_list);
737 strlcpy(extra_response->key, key, sizeof(extra_response->key));
738 strlcpy(extra_response->value, NOTUNDERSTOOD,
739 sizeof(extra_response->value));
741 list_add_tail(&extra_response->er_list,
742 ¶m_list->extra_response_list);
746 static int iscsi_check_for_auth_key(char *key)
751 if (!strcmp(key, "CHAP_A") || !strcmp(key, "CHAP_I") ||
752 !strcmp(key, "CHAP_C") || !strcmp(key, "CHAP_N") ||
753 !strcmp(key, "CHAP_R"))
759 if (!strcmp(key, "SRP_U") || !strcmp(key, "SRP_N") ||
760 !strcmp(key, "SRP_g") || !strcmp(key, "SRP_s") ||
761 !strcmp(key, "SRP_A") || !strcmp(key, "SRP_B") ||
762 !strcmp(key, "SRP_M") || !strcmp(key, "SRP_HM"))
768 static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param,
769 bool keys_workaround)
771 if (IS_TYPE_BOOL_AND(param)) {
772 if (!strcmp(param->value, NO))
773 SET_PSTATE_REPLY_OPTIONAL(param);
774 } else if (IS_TYPE_BOOL_OR(param)) {
775 if (!strcmp(param->value, YES))
776 SET_PSTATE_REPLY_OPTIONAL(param);
778 if (keys_workaround) {
780 * Required for gPXE iSCSI boot client
782 if (!strcmp(param->name, IMMEDIATEDATA))
783 SET_PSTATE_REPLY_OPTIONAL(param);
785 } else if (IS_TYPE_NUMBER(param)) {
786 if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
787 SET_PSTATE_REPLY_OPTIONAL(param);
789 if (keys_workaround) {
791 * Required for Mellanox Flexboot PXE boot ROM
793 if (!strcmp(param->name, FIRSTBURSTLENGTH))
794 SET_PSTATE_REPLY_OPTIONAL(param);
797 * Required for gPXE iSCSI boot client
799 if (!strcmp(param->name, MAXCONNECTIONS))
800 SET_PSTATE_REPLY_OPTIONAL(param);
802 } else if (IS_PHASE_DECLARATIVE(param))
803 SET_PSTATE_REPLY_OPTIONAL(param);
806 static int iscsi_check_boolean_value(struct iscsi_param *param, char *value)
808 if (strcmp(value, YES) && strcmp(value, NO)) {
809 pr_err("Illegal value for \"%s\", must be either"
810 " \"%s\" or \"%s\".\n", param->name, YES, NO);
817 static int iscsi_check_numerical_value(struct iscsi_param *param, char *value_ptr)
822 value = simple_strtoul(value_ptr, &tmpptr, 0);
824 if (IS_TYPERANGE_0_TO_2(param)) {
825 if ((value < 0) || (value > 2)) {
826 pr_err("Illegal value for \"%s\", must be"
827 " between 0 and 2.\n", param->name);
832 if (IS_TYPERANGE_0_TO_3600(param)) {
833 if ((value < 0) || (value > 3600)) {
834 pr_err("Illegal value for \"%s\", must be"
835 " between 0 and 3600.\n", param->name);
840 if (IS_TYPERANGE_0_TO_32767(param)) {
841 if ((value < 0) || (value > 32767)) {
842 pr_err("Illegal value for \"%s\", must be"
843 " between 0 and 32767.\n", param->name);
848 if (IS_TYPERANGE_0_TO_65535(param)) {
849 if ((value < 0) || (value > 65535)) {
850 pr_err("Illegal value for \"%s\", must be"
851 " between 0 and 65535.\n", param->name);
856 if (IS_TYPERANGE_1_TO_65535(param)) {
857 if ((value < 1) || (value > 65535)) {
858 pr_err("Illegal value for \"%s\", must be"
859 " between 1 and 65535.\n", param->name);
864 if (IS_TYPERANGE_2_TO_3600(param)) {
865 if ((value < 2) || (value > 3600)) {
866 pr_err("Illegal value for \"%s\", must be"
867 " between 2 and 3600.\n", param->name);
872 if (IS_TYPERANGE_512_TO_16777215(param)) {
873 if ((value < 512) || (value > 16777215)) {
874 pr_err("Illegal value for \"%s\", must be"
875 " between 512 and 16777215.\n", param->name);
884 static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value)
886 if (IS_PSTATE_PROPOSER(param))
889 if (IS_TYPERANGE_AUTH_PARAM(param)) {
890 if (strcmp(value, KRB5) && strcmp(value, SPKM1) &&
891 strcmp(value, SPKM2) && strcmp(value, SRP) &&
892 strcmp(value, CHAP) && strcmp(value, NONE)) {
893 pr_err("Illegal value for \"%s\", must be"
894 " \"%s\", \"%s\", \"%s\", \"%s\", \"%s\""
895 " or \"%s\".\n", param->name, KRB5,
896 SPKM1, SPKM2, SRP, CHAP, NONE);
900 if (IS_TYPERANGE_DIGEST_PARAM(param)) {
901 if (strcmp(value, CRC32C) && strcmp(value, NONE)) {
902 pr_err("Illegal value for \"%s\", must be"
903 " \"%s\" or \"%s\".\n", param->name,
908 if (IS_TYPERANGE_SESSIONTYPE(param)) {
909 if (strcmp(value, DISCOVERY) && strcmp(value, NORMAL)) {
910 pr_err("Illegal value for \"%s\", must be"
911 " \"%s\" or \"%s\".\n", param->name,
920 static char *iscsi_check_valuelist_for_support(
921 struct iscsi_param *param,
924 char *tmp1 = NULL, *tmp2 = NULL;
925 char *acceptor_values = NULL, *proposer_values = NULL;
927 acceptor_values = param->value;
928 proposer_values = value;
931 if (!proposer_values)
933 tmp1 = strchr(proposer_values, ',');
936 acceptor_values = param->value;
938 if (!acceptor_values) {
943 tmp2 = strchr(acceptor_values, ',');
946 if (!strcmp(acceptor_values, proposer_values)) {
954 acceptor_values = tmp2;
955 } while (acceptor_values);
958 proposer_values = tmp1;
959 } while (proposer_values);
962 return proposer_values;
965 static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value,
966 struct iscsi_conn *conn)
968 u8 acceptor_boolean_value = 0, proposer_boolean_value = 0;
969 char *negotiated_value = NULL;
971 if (IS_PSTATE_ACCEPTOR(param)) {
972 pr_err("Received key \"%s\" twice, protocol error.\n",
977 if (IS_PSTATE_REJECT(param))
980 if (IS_TYPE_BOOL_AND(param)) {
981 if (!strcmp(value, YES))
982 proposer_boolean_value = 1;
983 if (!strcmp(param->value, YES))
984 acceptor_boolean_value = 1;
985 if (acceptor_boolean_value && proposer_boolean_value)
988 if (iscsi_update_param_value(param, NO) < 0)
990 if (!proposer_boolean_value)
991 SET_PSTATE_REPLY_OPTIONAL(param);
993 } else if (IS_TYPE_BOOL_OR(param)) {
994 if (!strcmp(value, YES))
995 proposer_boolean_value = 1;
996 if (!strcmp(param->value, YES))
997 acceptor_boolean_value = 1;
998 if (acceptor_boolean_value || proposer_boolean_value) {
999 if (iscsi_update_param_value(param, YES) < 0)
1001 if (proposer_boolean_value)
1002 SET_PSTATE_REPLY_OPTIONAL(param);
1004 } else if (IS_TYPE_NUMBER(param)) {
1005 char *tmpptr, buf[11];
1006 u32 acceptor_value = simple_strtoul(param->value, &tmpptr, 0);
1007 u32 proposer_value = simple_strtoul(value, &tmpptr, 0);
1009 memset(buf, 0, sizeof(buf));
1011 if (!strcmp(param->name, MAXCONNECTIONS) ||
1012 !strcmp(param->name, MAXBURSTLENGTH) ||
1013 !strcmp(param->name, FIRSTBURSTLENGTH) ||
1014 !strcmp(param->name, MAXOUTSTANDINGR2T) ||
1015 !strcmp(param->name, DEFAULTTIME2RETAIN) ||
1016 !strcmp(param->name, ERRORRECOVERYLEVEL)) {
1017 if (proposer_value > acceptor_value) {
1018 sprintf(buf, "%u", acceptor_value);
1019 if (iscsi_update_param_value(param,
1023 if (iscsi_update_param_value(param, value) < 0)
1026 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
1027 if (acceptor_value > proposer_value) {
1028 sprintf(buf, "%u", acceptor_value);
1029 if (iscsi_update_param_value(param,
1033 if (iscsi_update_param_value(param, value) < 0)
1037 if (iscsi_update_param_value(param, value) < 0)
1041 if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
1042 struct iscsi_param *param_mxdsl;
1043 unsigned long long tmp;
1046 rc = kstrtoull(param->value, 0, &tmp);
1050 conn->conn_ops->MaxRecvDataSegmentLength = tmp;
1051 pr_debug("Saving op->MaxRecvDataSegmentLength from"
1052 " original initiator received value: %u\n",
1053 conn->conn_ops->MaxRecvDataSegmentLength);
1055 param_mxdsl = iscsi_find_param_from_key(
1056 MAXXMITDATASEGMENTLENGTH,
1061 rc = iscsi_update_param_value(param,
1062 param_mxdsl->value);
1066 pr_debug("Updated %s to target MXDSL value: %s\n",
1067 param->name, param->value);
1069 } else if (IS_TYPE_VALUE_LIST(param)) {
1070 negotiated_value = iscsi_check_valuelist_for_support(
1072 if (!negotiated_value) {
1073 pr_err("Proposer's value list \"%s\" contains"
1074 " no valid values from Acceptor's value list"
1075 " \"%s\".\n", value, param->value);
1078 if (iscsi_update_param_value(param, negotiated_value) < 0)
1080 } else if (IS_PHASE_DECLARATIVE(param)) {
1081 if (iscsi_update_param_value(param, value) < 0)
1083 SET_PSTATE_REPLY_OPTIONAL(param);
1089 static int iscsi_check_proposer_state(struct iscsi_param *param, char *value)
1091 if (IS_PSTATE_RESPONSE_GOT(param)) {
1092 pr_err("Received key \"%s\" twice, protocol error.\n",
1097 if (IS_TYPE_VALUE_LIST(param)) {
1098 char *comma_ptr = NULL, *tmp_ptr = NULL;
1100 comma_ptr = strchr(value, ',');
1102 pr_err("Illegal \",\" in response for \"%s\".\n",
1107 tmp_ptr = iscsi_check_valuelist_for_support(param, value);
1112 if (iscsi_update_param_value(param, value) < 0)
1118 static int iscsi_check_value(struct iscsi_param *param, char *value)
1120 char *comma_ptr = NULL;
1122 if (!strcmp(value, REJECT)) {
1123 if (!strcmp(param->name, IFMARKINT) ||
1124 !strcmp(param->name, OFMARKINT)) {
1126 * Reject is not fatal for [I,O]FMarkInt, and causes
1127 * [I,O]FMarker to be reset to No. (See iSCSI v20 A.3.2)
1129 SET_PSTATE_REJECT(param);
1132 pr_err("Received %s=%s\n", param->name, value);
1135 if (!strcmp(value, IRRELEVANT)) {
1136 pr_debug("Received %s=%s\n", param->name, value);
1137 SET_PSTATE_IRRELEVANT(param);
1140 if (!strcmp(value, NOTUNDERSTOOD)) {
1141 if (!IS_PSTATE_PROPOSER(param)) {
1142 pr_err("Received illegal offer %s=%s\n",
1143 param->name, value);
1147 /* #warning FIXME: Add check for X-ExtensionKey here */
1148 pr_err("Standard iSCSI key \"%s\" cannot be answered"
1149 " with \"%s\", protocol error.\n", param->name, value);
1155 comma_ptr = strchr(value, ',');
1157 if (comma_ptr && !IS_TYPE_VALUE_LIST(param)) {
1158 pr_err("Detected value separator \",\", but"
1159 " key \"%s\" does not allow a value list,"
1160 " protocol error.\n", param->name);
1166 if (strlen(value) > VALUE_MAXLEN) {
1167 pr_err("Value for key \"%s\" exceeds %d,"
1168 " protocol error.\n", param->name,
1173 if (IS_TYPE_BOOL_AND(param) || IS_TYPE_BOOL_OR(param)) {
1174 if (iscsi_check_boolean_value(param, value) < 0)
1176 } else if (IS_TYPE_NUMBER(param)) {
1177 if (iscsi_check_numerical_value(param, value) < 0)
1179 } else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) {
1180 if (iscsi_check_string_or_list_value(param, value) < 0)
1183 pr_err("Huh? 0x%02x\n", param->type);
1196 static struct iscsi_param *__iscsi_check_key(
1199 struct iscsi_param_list *param_list)
1201 struct iscsi_param *param;
1203 if (strlen(key) > KEY_MAXLEN) {
1204 pr_err("Length of key name \"%s\" exceeds %d.\n",
1209 param = iscsi_find_param_from_key(key, param_list);
1213 if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
1214 pr_err("Key \"%s\" may not be sent to %s,"
1215 " protocol error.\n", param->name,
1216 (sender & SENDER_RECEIVER) ? "target" : "initiator");
1220 if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
1221 pr_err("Key \"%s\" may not be sent to %s,"
1222 " protocol error.\n", param->name,
1223 (sender & SENDER_RECEIVER) ? "initiator" : "target");
1230 static struct iscsi_param *iscsi_check_key(
1234 struct iscsi_param_list *param_list)
1236 struct iscsi_param *param;
1238 * Key name length must not exceed 63 bytes. (See iSCSI v20 5.1)
1240 if (strlen(key) > KEY_MAXLEN) {
1241 pr_err("Length of key name \"%s\" exceeds %d.\n",
1246 param = iscsi_find_param_from_key(key, param_list);
1250 if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
1251 pr_err("Key \"%s\" may not be sent to %s,"
1252 " protocol error.\n", param->name,
1253 (sender & SENDER_RECEIVER) ? "target" : "initiator");
1256 if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
1257 pr_err("Key \"%s\" may not be sent to %s,"
1258 " protocol error.\n", param->name,
1259 (sender & SENDER_RECEIVER) ? "initiator" : "target");
1263 if (IS_PSTATE_ACCEPTOR(param)) {
1264 pr_err("Key \"%s\" received twice, protocol error.\n",
1272 if (!(param->phase & phase)) {
1276 case PHASE_SECURITY:
1277 phase_name = "Security";
1279 case PHASE_OPERATIONAL:
1280 phase_name = "Operational";
1283 phase_name = "Unknown";
1285 pr_err("Key \"%s\" may not be negotiated during %s phase.\n",
1286 param->name, phase_name);
1293 static int iscsi_enforce_integrity_rules(
1295 struct iscsi_param_list *param_list)
1298 u8 DataSequenceInOrder = 0;
1299 u8 ErrorRecoveryLevel = 0, SessionType = 0;
1300 u32 FirstBurstLength = 0, MaxBurstLength = 0;
1301 struct iscsi_param *param = NULL;
1303 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1304 if (!(param->phase & phase))
1306 if (!strcmp(param->name, SESSIONTYPE))
1307 if (!strcmp(param->value, NORMAL))
1309 if (!strcmp(param->name, ERRORRECOVERYLEVEL))
1310 ErrorRecoveryLevel = simple_strtoul(param->value,
1312 if (!strcmp(param->name, DATASEQUENCEINORDER))
1313 if (!strcmp(param->value, YES))
1314 DataSequenceInOrder = 1;
1315 if (!strcmp(param->name, MAXBURSTLENGTH))
1316 MaxBurstLength = simple_strtoul(param->value,
1320 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1321 if (!(param->phase & phase))
1323 if (!SessionType && !IS_PSTATE_ACCEPTOR(param))
1325 if (!strcmp(param->name, MAXOUTSTANDINGR2T) &&
1326 DataSequenceInOrder && (ErrorRecoveryLevel > 0)) {
1327 if (strcmp(param->value, "1")) {
1328 if (iscsi_update_param_value(param, "1") < 0)
1330 pr_debug("Reset \"%s\" to \"%s\".\n",
1331 param->name, param->value);
1334 if (!strcmp(param->name, MAXCONNECTIONS) && !SessionType) {
1335 if (strcmp(param->value, "1")) {
1336 if (iscsi_update_param_value(param, "1") < 0)
1338 pr_debug("Reset \"%s\" to \"%s\".\n",
1339 param->name, param->value);
1342 if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
1343 FirstBurstLength = simple_strtoul(param->value,
1345 if (FirstBurstLength > MaxBurstLength) {
1347 memset(tmpbuf, 0, sizeof(tmpbuf));
1348 sprintf(tmpbuf, "%u", MaxBurstLength);
1349 if (iscsi_update_param_value(param, tmpbuf))
1351 pr_debug("Reset \"%s\" to \"%s\".\n",
1352 param->name, param->value);
1360 int iscsi_decode_text_input(
1365 struct iscsi_conn *conn)
1367 struct iscsi_param_list *param_list = conn->param_list;
1368 char *tmpbuf, *start = NULL, *end = NULL;
1370 tmpbuf = kzalloc(length + 1, GFP_KERNEL);
1372 pr_err("Unable to allocate %u + 1 bytes for tmpbuf.\n", length);
1376 memcpy(tmpbuf, textbuf, length);
1377 tmpbuf[length] = '\0';
1379 end = (start + length);
1381 while (start < end) {
1383 struct iscsi_param *param;
1385 if (iscsi_extract_key_value(start, &key, &value) < 0) {
1390 pr_debug("Got key: %s=%s\n", key, value);
1392 if (phase & PHASE_SECURITY) {
1393 if (iscsi_check_for_auth_key(key) > 0) {
1399 param = iscsi_check_key(key, phase, sender, param_list);
1401 if (iscsi_add_notunderstood_response(key,
1402 value, param_list) < 0) {
1406 start += strlen(key) + strlen(value) + 2;
1409 if (iscsi_check_value(param, value) < 0) {
1414 start += strlen(key) + strlen(value) + 2;
1416 if (IS_PSTATE_PROPOSER(param)) {
1417 if (iscsi_check_proposer_state(param, value) < 0) {
1421 SET_PSTATE_RESPONSE_GOT(param);
1423 if (iscsi_check_acceptor_state(param, value, conn) < 0) {
1427 SET_PSTATE_ACCEPTOR(param);
1435 int iscsi_encode_text_output(
1440 struct iscsi_param_list *param_list,
1441 bool keys_workaround)
1443 char *output_buf = NULL;
1444 struct iscsi_extra_response *er;
1445 struct iscsi_param *param;
1447 output_buf = textbuf + *length;
1449 if (iscsi_enforce_integrity_rules(phase, param_list) < 0)
1452 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1453 if (!(param->sender & sender))
1455 if (IS_PSTATE_ACCEPTOR(param) &&
1456 !IS_PSTATE_RESPONSE_SENT(param) &&
1457 !IS_PSTATE_REPLY_OPTIONAL(param) &&
1458 (param->phase & phase)) {
1459 *length += sprintf(output_buf, "%s=%s",
1460 param->name, param->value);
1462 output_buf = textbuf + *length;
1463 SET_PSTATE_RESPONSE_SENT(param);
1464 pr_debug("Sending key: %s=%s\n",
1465 param->name, param->value);
1468 if (IS_PSTATE_NEGOTIATE(param) &&
1469 !IS_PSTATE_ACCEPTOR(param) &&
1470 !IS_PSTATE_PROPOSER(param) &&
1471 (param->phase & phase)) {
1472 *length += sprintf(output_buf, "%s=%s",
1473 param->name, param->value);
1475 output_buf = textbuf + *length;
1476 SET_PSTATE_PROPOSER(param);
1477 iscsi_check_proposer_for_optional_reply(param,
1479 pr_debug("Sending key: %s=%s\n",
1480 param->name, param->value);
1484 list_for_each_entry(er, ¶m_list->extra_response_list, er_list) {
1485 *length += sprintf(output_buf, "%s=%s", er->key, er->value);
1487 output_buf = textbuf + *length;
1488 pr_debug("Sending key: %s=%s\n", er->key, er->value);
1490 iscsi_release_extra_responses(param_list);
1495 int iscsi_check_negotiated_keys(struct iscsi_param_list *param_list)
1498 struct iscsi_param *param;
1500 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1501 if (IS_PSTATE_NEGOTIATE(param) &&
1502 IS_PSTATE_PROPOSER(param) &&
1503 !IS_PSTATE_RESPONSE_GOT(param) &&
1504 !IS_PSTATE_REPLY_OPTIONAL(param) &&
1505 !IS_PHASE_DECLARATIVE(param)) {
1506 pr_err("No response for proposed key \"%s\".\n",
1515 int iscsi_change_param_value(
1517 struct iscsi_param_list *param_list,
1520 char *key = NULL, *value = NULL;
1521 struct iscsi_param *param;
1524 if (iscsi_extract_key_value(keyvalue, &key, &value) < 0)
1528 param = __iscsi_check_key(keyvalue, sender, param_list);
1532 param = iscsi_check_key(keyvalue, 0, sender, param_list);
1536 param->set_param = 1;
1537 if (iscsi_check_value(param, value) < 0) {
1538 param->set_param = 0;
1541 param->set_param = 0;
1544 if (iscsi_update_param_value(param, value) < 0)
1550 void iscsi_set_connection_parameters(
1551 struct iscsi_conn_ops *ops,
1552 struct iscsi_param_list *param_list)
1555 struct iscsi_param *param;
1557 pr_debug("---------------------------------------------------"
1558 "---------------\n");
1559 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1561 * Special case to set MAXXMITDATASEGMENTLENGTH from the
1562 * target requested MaxRecvDataSegmentLength, even though
1563 * this key is not sent over the wire.
1565 if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
1566 ops->MaxXmitDataSegmentLength =
1567 simple_strtoul(param->value, &tmpptr, 0);
1568 pr_debug("MaxXmitDataSegmentLength: %s\n",
1572 if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
1574 if (!strcmp(param->name, AUTHMETHOD)) {
1575 pr_debug("AuthMethod: %s\n",
1577 } else if (!strcmp(param->name, HEADERDIGEST)) {
1578 ops->HeaderDigest = !strcmp(param->value, CRC32C);
1579 pr_debug("HeaderDigest: %s\n",
1581 } else if (!strcmp(param->name, DATADIGEST)) {
1582 ops->DataDigest = !strcmp(param->value, CRC32C);
1583 pr_debug("DataDigest: %s\n",
1585 } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
1587 * At this point iscsi_check_acceptor_state() will have
1588 * set ops->MaxRecvDataSegmentLength from the original
1589 * initiator provided value.
1591 pr_debug("MaxRecvDataSegmentLength: %u\n",
1592 ops->MaxRecvDataSegmentLength);
1593 } else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) {
1594 ops->InitiatorRecvDataSegmentLength =
1595 simple_strtoul(param->value, &tmpptr, 0);
1596 pr_debug("InitiatorRecvDataSegmentLength: %s\n",
1598 ops->MaxRecvDataSegmentLength =
1599 ops->InitiatorRecvDataSegmentLength;
1600 pr_debug("Set MRDSL from InitiatorRecvDataSegmentLength\n");
1601 } else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) {
1602 ops->TargetRecvDataSegmentLength =
1603 simple_strtoul(param->value, &tmpptr, 0);
1604 pr_debug("TargetRecvDataSegmentLength: %s\n",
1606 ops->MaxXmitDataSegmentLength =
1607 ops->TargetRecvDataSegmentLength;
1608 pr_debug("Set MXDSL from TargetRecvDataSegmentLength\n");
1611 pr_debug("----------------------------------------------------"
1612 "--------------\n");
1615 void iscsi_set_session_parameters(
1616 struct iscsi_sess_ops *ops,
1617 struct iscsi_param_list *param_list,
1621 struct iscsi_param *param;
1623 pr_debug("----------------------------------------------------"
1624 "--------------\n");
1625 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1626 if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
1628 if (!strcmp(param->name, INITIATORNAME)) {
1632 snprintf(ops->InitiatorName,
1633 sizeof(ops->InitiatorName),
1634 "%s", param->value);
1635 pr_debug("InitiatorName: %s\n",
1637 } else if (!strcmp(param->name, INITIATORALIAS)) {
1640 snprintf(ops->InitiatorAlias,
1641 sizeof(ops->InitiatorAlias),
1642 "%s", param->value);
1643 pr_debug("InitiatorAlias: %s\n",
1645 } else if (!strcmp(param->name, TARGETNAME)) {
1649 snprintf(ops->TargetName,
1650 sizeof(ops->TargetName),
1651 "%s", param->value);
1652 pr_debug("TargetName: %s\n",
1654 } else if (!strcmp(param->name, TARGETALIAS)) {
1657 snprintf(ops->TargetAlias, sizeof(ops->TargetAlias),
1658 "%s", param->value);
1659 pr_debug("TargetAlias: %s\n",
1661 } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
1662 ops->TargetPortalGroupTag =
1663 simple_strtoul(param->value, &tmpptr, 0);
1664 pr_debug("TargetPortalGroupTag: %s\n",
1666 } else if (!strcmp(param->name, MAXCONNECTIONS)) {
1667 ops->MaxConnections =
1668 simple_strtoul(param->value, &tmpptr, 0);
1669 pr_debug("MaxConnections: %s\n",
1671 } else if (!strcmp(param->name, INITIALR2T)) {
1672 ops->InitialR2T = !strcmp(param->value, YES);
1673 pr_debug("InitialR2T: %s\n",
1675 } else if (!strcmp(param->name, IMMEDIATEDATA)) {
1676 ops->ImmediateData = !strcmp(param->value, YES);
1677 pr_debug("ImmediateData: %s\n",
1679 } else if (!strcmp(param->name, MAXBURSTLENGTH)) {
1680 ops->MaxBurstLength =
1681 simple_strtoul(param->value, &tmpptr, 0);
1682 pr_debug("MaxBurstLength: %s\n",
1684 } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
1685 ops->FirstBurstLength =
1686 simple_strtoul(param->value, &tmpptr, 0);
1687 pr_debug("FirstBurstLength: %s\n",
1689 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
1690 ops->DefaultTime2Wait =
1691 simple_strtoul(param->value, &tmpptr, 0);
1692 pr_debug("DefaultTime2Wait: %s\n",
1694 } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
1695 ops->DefaultTime2Retain =
1696 simple_strtoul(param->value, &tmpptr, 0);
1697 pr_debug("DefaultTime2Retain: %s\n",
1699 } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
1700 ops->MaxOutstandingR2T =
1701 simple_strtoul(param->value, &tmpptr, 0);
1702 pr_debug("MaxOutstandingR2T: %s\n",
1704 } else if (!strcmp(param->name, DATAPDUINORDER)) {
1705 ops->DataPDUInOrder = !strcmp(param->value, YES);
1706 pr_debug("DataPDUInOrder: %s\n",
1708 } else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
1709 ops->DataSequenceInOrder = !strcmp(param->value, YES);
1710 pr_debug("DataSequenceInOrder: %s\n",
1712 } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
1713 ops->ErrorRecoveryLevel =
1714 simple_strtoul(param->value, &tmpptr, 0);
1715 pr_debug("ErrorRecoveryLevel: %s\n",
1717 } else if (!strcmp(param->name, SESSIONTYPE)) {
1718 ops->SessionType = !strcmp(param->value, DISCOVERY);
1719 pr_debug("SessionType: %s\n",
1721 } else if (!strcmp(param->name, RDMAEXTENSIONS)) {
1722 ops->RDMAExtensions = !strcmp(param->value, YES);
1723 pr_debug("RDMAExtensions: %s\n",
1727 pr_debug("----------------------------------------------------"
1728 "--------------\n");