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>
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);
411 * Extra parameters for ISER from RFC-5046
413 param = iscsi_set_default_param(pl, RDMAEXTENSIONS, INITIAL_RDMAEXTENSIONS,
414 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
415 TYPERANGE_BOOL_AND, USE_LEADING_ONLY);
419 param = iscsi_set_default_param(pl, INITIATORRECVDATASEGMENTLENGTH,
420 INITIAL_INITIATORRECVDATASEGMENTLENGTH,
421 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
422 TYPERANGE_512_TO_16777215, USE_ALL);
426 param = iscsi_set_default_param(pl, TARGETRECVDATASEGMENTLENGTH,
427 INITIAL_TARGETRECVDATASEGMENTLENGTH,
428 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
429 TYPERANGE_512_TO_16777215, USE_ALL);
433 *param_list_ptr = pl;
436 iscsi_release_param_list(pl);
440 int iscsi_set_keys_to_negotiate(
441 struct iscsi_param_list *param_list,
444 struct iscsi_param *param;
446 param_list->iser = iser;
448 list_for_each_entry(param, ¶m_list->param_list, p_list) {
450 if (!strcmp(param->name, AUTHMETHOD)) {
451 SET_PSTATE_NEGOTIATE(param);
452 } else if (!strcmp(param->name, HEADERDIGEST)) {
454 SET_PSTATE_NEGOTIATE(param);
455 } else if (!strcmp(param->name, DATADIGEST)) {
457 SET_PSTATE_NEGOTIATE(param);
458 } else if (!strcmp(param->name, MAXCONNECTIONS)) {
459 SET_PSTATE_NEGOTIATE(param);
460 } else if (!strcmp(param->name, TARGETNAME)) {
462 } else if (!strcmp(param->name, INITIATORNAME)) {
464 } else if (!strcmp(param->name, TARGETALIAS)) {
466 SET_PSTATE_NEGOTIATE(param);
467 } else if (!strcmp(param->name, INITIATORALIAS)) {
469 } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
470 SET_PSTATE_NEGOTIATE(param);
471 } else if (!strcmp(param->name, INITIALR2T)) {
472 SET_PSTATE_NEGOTIATE(param);
473 } else if (!strcmp(param->name, IMMEDIATEDATA)) {
474 SET_PSTATE_NEGOTIATE(param);
475 } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
477 SET_PSTATE_NEGOTIATE(param);
478 } else if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
480 } else if (!strcmp(param->name, MAXBURSTLENGTH)) {
481 SET_PSTATE_NEGOTIATE(param);
482 } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
483 SET_PSTATE_NEGOTIATE(param);
484 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
485 SET_PSTATE_NEGOTIATE(param);
486 } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
487 SET_PSTATE_NEGOTIATE(param);
488 } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
489 SET_PSTATE_NEGOTIATE(param);
490 } else if (!strcmp(param->name, DATAPDUINORDER)) {
491 SET_PSTATE_NEGOTIATE(param);
492 } else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
493 SET_PSTATE_NEGOTIATE(param);
494 } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
495 SET_PSTATE_NEGOTIATE(param);
496 } else if (!strcmp(param->name, SESSIONTYPE)) {
497 SET_PSTATE_NEGOTIATE(param);
498 } else if (!strcmp(param->name, IFMARKER)) {
499 SET_PSTATE_NEGOTIATE(param);
500 } else if (!strcmp(param->name, OFMARKER)) {
501 SET_PSTATE_NEGOTIATE(param);
502 } else if (!strcmp(param->name, IFMARKINT)) {
503 SET_PSTATE_REJECT(param);
504 } else if (!strcmp(param->name, OFMARKINT)) {
505 SET_PSTATE_REJECT(param);
506 } else if (!strcmp(param->name, RDMAEXTENSIONS)) {
508 SET_PSTATE_NEGOTIATE(param);
509 } else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) {
511 SET_PSTATE_NEGOTIATE(param);
512 } else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) {
514 SET_PSTATE_NEGOTIATE(param);
521 int iscsi_set_keys_irrelevant_for_discovery(
522 struct iscsi_param_list *param_list)
524 struct iscsi_param *param;
526 list_for_each_entry(param, ¶m_list->param_list, p_list) {
527 if (!strcmp(param->name, MAXCONNECTIONS))
528 param->state &= ~PSTATE_NEGOTIATE;
529 else if (!strcmp(param->name, INITIALR2T))
530 param->state &= ~PSTATE_NEGOTIATE;
531 else if (!strcmp(param->name, IMMEDIATEDATA))
532 param->state &= ~PSTATE_NEGOTIATE;
533 else if (!strcmp(param->name, MAXBURSTLENGTH))
534 param->state &= ~PSTATE_NEGOTIATE;
535 else if (!strcmp(param->name, FIRSTBURSTLENGTH))
536 param->state &= ~PSTATE_NEGOTIATE;
537 else if (!strcmp(param->name, MAXOUTSTANDINGR2T))
538 param->state &= ~PSTATE_NEGOTIATE;
539 else if (!strcmp(param->name, DATAPDUINORDER))
540 param->state &= ~PSTATE_NEGOTIATE;
541 else if (!strcmp(param->name, DATASEQUENCEINORDER))
542 param->state &= ~PSTATE_NEGOTIATE;
543 else if (!strcmp(param->name, ERRORRECOVERYLEVEL))
544 param->state &= ~PSTATE_NEGOTIATE;
545 else if (!strcmp(param->name, DEFAULTTIME2WAIT))
546 param->state &= ~PSTATE_NEGOTIATE;
547 else if (!strcmp(param->name, DEFAULTTIME2RETAIN))
548 param->state &= ~PSTATE_NEGOTIATE;
549 else if (!strcmp(param->name, IFMARKER))
550 param->state &= ~PSTATE_NEGOTIATE;
551 else if (!strcmp(param->name, OFMARKER))
552 param->state &= ~PSTATE_NEGOTIATE;
553 else if (!strcmp(param->name, IFMARKINT))
554 param->state &= ~PSTATE_NEGOTIATE;
555 else if (!strcmp(param->name, OFMARKINT))
556 param->state &= ~PSTATE_NEGOTIATE;
557 else if (!strcmp(param->name, RDMAEXTENSIONS))
558 param->state &= ~PSTATE_NEGOTIATE;
559 else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH))
560 param->state &= ~PSTATE_NEGOTIATE;
561 else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH))
562 param->state &= ~PSTATE_NEGOTIATE;
568 int iscsi_copy_param_list(
569 struct iscsi_param_list **dst_param_list,
570 struct iscsi_param_list *src_param_list,
573 struct iscsi_param *param = NULL;
574 struct iscsi_param *new_param = NULL;
575 struct iscsi_param_list *param_list = NULL;
577 param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
579 pr_err("Unable to allocate memory for struct iscsi_param_list.\n");
582 INIT_LIST_HEAD(¶m_list->param_list);
583 INIT_LIST_HEAD(¶m_list->extra_response_list);
585 list_for_each_entry(param, &src_param_list->param_list, p_list) {
586 if (!leading && (param->scope & SCOPE_SESSION_WIDE)) {
587 if ((strcmp(param->name, "TargetName") != 0) &&
588 (strcmp(param->name, "InitiatorName") != 0) &&
589 (strcmp(param->name, "TargetPortalGroupTag") != 0))
593 new_param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL);
595 pr_err("Unable to allocate memory for struct iscsi_param.\n");
599 new_param->name = kstrdup(param->name, GFP_KERNEL);
600 new_param->value = kstrdup(param->value, GFP_KERNEL);
601 if (!new_param->value || !new_param->name) {
602 kfree(new_param->value);
603 kfree(new_param->name);
605 pr_err("Unable to allocate memory for parameter name/value.\n");
609 new_param->set_param = param->set_param;
610 new_param->phase = param->phase;
611 new_param->scope = param->scope;
612 new_param->sender = param->sender;
613 new_param->type = param->type;
614 new_param->use = param->use;
615 new_param->type_range = param->type_range;
617 list_add_tail(&new_param->p_list, ¶m_list->param_list);
620 if (!list_empty(¶m_list->param_list)) {
621 *dst_param_list = param_list;
623 pr_err("No parameters allocated.\n");
630 iscsi_release_param_list(param_list);
634 static void iscsi_release_extra_responses(struct iscsi_param_list *param_list)
636 struct iscsi_extra_response *er, *er_tmp;
638 list_for_each_entry_safe(er, er_tmp, ¶m_list->extra_response_list,
640 list_del(&er->er_list);
645 void iscsi_release_param_list(struct iscsi_param_list *param_list)
647 struct iscsi_param *param, *param_tmp;
649 list_for_each_entry_safe(param, param_tmp, ¶m_list->param_list,
651 list_del(¶m->p_list);
658 iscsi_release_extra_responses(param_list);
663 struct iscsi_param *iscsi_find_param_from_key(
665 struct iscsi_param_list *param_list)
667 struct iscsi_param *param;
669 if (!key || !param_list) {
670 pr_err("Key or parameter list pointer is NULL.\n");
674 list_for_each_entry(param, ¶m_list->param_list, p_list) {
675 if (!strcmp(key, param->name))
679 pr_err("Unable to locate key \"%s\".\n", key);
683 int iscsi_extract_key_value(char *textbuf, char **key, char **value)
685 *value = strchr(textbuf, '=');
687 pr_err("Unable to locate \"=\" separator for key,"
688 " ignoring request.\n");
699 int iscsi_update_param_value(struct iscsi_param *param, char *value)
703 param->value = kstrdup(value, GFP_KERNEL);
705 pr_err("Unable to allocate memory for value.\n");
709 pr_debug("iSCSI Parameter updated to %s=%s\n",
710 param->name, param->value);
714 static int iscsi_add_notunderstood_response(
717 struct iscsi_param_list *param_list)
719 struct iscsi_extra_response *extra_response;
721 if (strlen(value) > VALUE_MAXLEN) {
722 pr_err("Value for notunderstood key \"%s\" exceeds %d,"
723 " protocol error.\n", key, VALUE_MAXLEN);
727 extra_response = kzalloc(sizeof(struct iscsi_extra_response), GFP_KERNEL);
728 if (!extra_response) {
729 pr_err("Unable to allocate memory for"
730 " struct iscsi_extra_response.\n");
733 INIT_LIST_HEAD(&extra_response->er_list);
735 strlcpy(extra_response->key, key, sizeof(extra_response->key));
736 strlcpy(extra_response->value, NOTUNDERSTOOD,
737 sizeof(extra_response->value));
739 list_add_tail(&extra_response->er_list,
740 ¶m_list->extra_response_list);
744 static int iscsi_check_for_auth_key(char *key)
749 if (!strcmp(key, "CHAP_A") || !strcmp(key, "CHAP_I") ||
750 !strcmp(key, "CHAP_C") || !strcmp(key, "CHAP_N") ||
751 !strcmp(key, "CHAP_R"))
757 if (!strcmp(key, "SRP_U") || !strcmp(key, "SRP_N") ||
758 !strcmp(key, "SRP_g") || !strcmp(key, "SRP_s") ||
759 !strcmp(key, "SRP_A") || !strcmp(key, "SRP_B") ||
760 !strcmp(key, "SRP_M") || !strcmp(key, "SRP_HM"))
766 static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
768 if (IS_TYPE_BOOL_AND(param)) {
769 if (!strcmp(param->value, NO))
770 SET_PSTATE_REPLY_OPTIONAL(param);
771 } else if (IS_TYPE_BOOL_OR(param)) {
772 if (!strcmp(param->value, YES))
773 SET_PSTATE_REPLY_OPTIONAL(param);
775 * Required for gPXE iSCSI boot client
777 if (!strcmp(param->name, IMMEDIATEDATA))
778 SET_PSTATE_REPLY_OPTIONAL(param);
779 } else if (IS_TYPE_NUMBER(param)) {
780 if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
781 SET_PSTATE_REPLY_OPTIONAL(param);
783 * The GlobalSAN iSCSI Initiator for MacOSX does
784 * not respond to MaxBurstLength, FirstBurstLength,
785 * DefaultTime2Wait or DefaultTime2Retain parameter keys.
786 * So, we set them to 'reply optional' here, and assume the
787 * the defaults from iscsi_parameters.h if the initiator
788 * is not RFC compliant and the keys are not negotiated.
790 if (!strcmp(param->name, MAXBURSTLENGTH))
791 SET_PSTATE_REPLY_OPTIONAL(param);
792 if (!strcmp(param->name, FIRSTBURSTLENGTH))
793 SET_PSTATE_REPLY_OPTIONAL(param);
794 if (!strcmp(param->name, DEFAULTTIME2WAIT))
795 SET_PSTATE_REPLY_OPTIONAL(param);
796 if (!strcmp(param->name, DEFAULTTIME2RETAIN))
797 SET_PSTATE_REPLY_OPTIONAL(param);
799 * Required for gPXE iSCSI boot client
801 if (!strcmp(param->name, MAXCONNECTIONS))
802 SET_PSTATE_REPLY_OPTIONAL(param);
803 } else if (IS_PHASE_DECLARATIVE(param))
804 SET_PSTATE_REPLY_OPTIONAL(param);
807 static int iscsi_check_boolean_value(struct iscsi_param *param, char *value)
809 if (strcmp(value, YES) && strcmp(value, NO)) {
810 pr_err("Illegal value for \"%s\", must be either"
811 " \"%s\" or \"%s\".\n", param->name, YES, NO);
818 static int iscsi_check_numerical_value(struct iscsi_param *param, char *value_ptr)
823 value = simple_strtoul(value_ptr, &tmpptr, 0);
825 if (IS_TYPERANGE_0_TO_2(param)) {
826 if ((value < 0) || (value > 2)) {
827 pr_err("Illegal value for \"%s\", must be"
828 " between 0 and 2.\n", param->name);
833 if (IS_TYPERANGE_0_TO_3600(param)) {
834 if ((value < 0) || (value > 3600)) {
835 pr_err("Illegal value for \"%s\", must be"
836 " between 0 and 3600.\n", param->name);
841 if (IS_TYPERANGE_0_TO_32767(param)) {
842 if ((value < 0) || (value > 32767)) {
843 pr_err("Illegal value for \"%s\", must be"
844 " between 0 and 32767.\n", param->name);
849 if (IS_TYPERANGE_0_TO_65535(param)) {
850 if ((value < 0) || (value > 65535)) {
851 pr_err("Illegal value for \"%s\", must be"
852 " between 0 and 65535.\n", param->name);
857 if (IS_TYPERANGE_1_TO_65535(param)) {
858 if ((value < 1) || (value > 65535)) {
859 pr_err("Illegal value for \"%s\", must be"
860 " between 1 and 65535.\n", param->name);
865 if (IS_TYPERANGE_2_TO_3600(param)) {
866 if ((value < 2) || (value > 3600)) {
867 pr_err("Illegal value for \"%s\", must be"
868 " between 2 and 3600.\n", param->name);
873 if (IS_TYPERANGE_512_TO_16777215(param)) {
874 if ((value < 512) || (value > 16777215)) {
875 pr_err("Illegal value for \"%s\", must be"
876 " between 512 and 16777215.\n", param->name);
885 static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value)
887 if (IS_PSTATE_PROPOSER(param))
890 if (IS_TYPERANGE_AUTH_PARAM(param)) {
891 if (strcmp(value, KRB5) && strcmp(value, SPKM1) &&
892 strcmp(value, SPKM2) && strcmp(value, SRP) &&
893 strcmp(value, CHAP) && strcmp(value, NONE)) {
894 pr_err("Illegal value for \"%s\", must be"
895 " \"%s\", \"%s\", \"%s\", \"%s\", \"%s\""
896 " or \"%s\".\n", param->name, KRB5,
897 SPKM1, SPKM2, SRP, CHAP, NONE);
901 if (IS_TYPERANGE_DIGEST_PARAM(param)) {
902 if (strcmp(value, CRC32C) && strcmp(value, NONE)) {
903 pr_err("Illegal value for \"%s\", must be"
904 " \"%s\" or \"%s\".\n", param->name,
909 if (IS_TYPERANGE_SESSIONTYPE(param)) {
910 if (strcmp(value, DISCOVERY) && strcmp(value, NORMAL)) {
911 pr_err("Illegal value for \"%s\", must be"
912 " \"%s\" or \"%s\".\n", param->name,
921 static char *iscsi_check_valuelist_for_support(
922 struct iscsi_param *param,
925 char *tmp1 = NULL, *tmp2 = NULL;
926 char *acceptor_values = NULL, *proposer_values = NULL;
928 acceptor_values = param->value;
929 proposer_values = value;
932 if (!proposer_values)
934 tmp1 = strchr(proposer_values, ',');
937 acceptor_values = param->value;
939 if (!acceptor_values) {
944 tmp2 = strchr(acceptor_values, ',');
947 if (!strcmp(acceptor_values, proposer_values)) {
955 acceptor_values = tmp2;
956 } while (acceptor_values);
959 proposer_values = tmp1;
960 } while (proposer_values);
963 return proposer_values;
966 static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value,
967 struct iscsi_conn *conn)
969 u8 acceptor_boolean_value = 0, proposer_boolean_value = 0;
970 char *negotiated_value = NULL;
972 if (IS_PSTATE_ACCEPTOR(param)) {
973 pr_err("Received key \"%s\" twice, protocol error.\n",
978 if (IS_PSTATE_REJECT(param))
981 if (IS_TYPE_BOOL_AND(param)) {
982 if (!strcmp(value, YES))
983 proposer_boolean_value = 1;
984 if (!strcmp(param->value, YES))
985 acceptor_boolean_value = 1;
986 if (acceptor_boolean_value && proposer_boolean_value)
989 if (iscsi_update_param_value(param, NO) < 0)
991 if (!proposer_boolean_value)
992 SET_PSTATE_REPLY_OPTIONAL(param);
994 } else if (IS_TYPE_BOOL_OR(param)) {
995 if (!strcmp(value, YES))
996 proposer_boolean_value = 1;
997 if (!strcmp(param->value, YES))
998 acceptor_boolean_value = 1;
999 if (acceptor_boolean_value || proposer_boolean_value) {
1000 if (iscsi_update_param_value(param, YES) < 0)
1002 if (proposer_boolean_value)
1003 SET_PSTATE_REPLY_OPTIONAL(param);
1005 } else if (IS_TYPE_NUMBER(param)) {
1006 char *tmpptr, buf[11];
1007 u32 acceptor_value = simple_strtoul(param->value, &tmpptr, 0);
1008 u32 proposer_value = simple_strtoul(value, &tmpptr, 0);
1010 memset(buf, 0, sizeof(buf));
1012 if (!strcmp(param->name, MAXCONNECTIONS) ||
1013 !strcmp(param->name, MAXBURSTLENGTH) ||
1014 !strcmp(param->name, FIRSTBURSTLENGTH) ||
1015 !strcmp(param->name, MAXOUTSTANDINGR2T) ||
1016 !strcmp(param->name, DEFAULTTIME2RETAIN) ||
1017 !strcmp(param->name, ERRORRECOVERYLEVEL)) {
1018 if (proposer_value > acceptor_value) {
1019 sprintf(buf, "%u", acceptor_value);
1020 if (iscsi_update_param_value(param,
1024 if (iscsi_update_param_value(param, value) < 0)
1027 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
1028 if (acceptor_value > proposer_value) {
1029 sprintf(buf, "%u", acceptor_value);
1030 if (iscsi_update_param_value(param,
1034 if (iscsi_update_param_value(param, value) < 0)
1038 if (iscsi_update_param_value(param, value) < 0)
1042 if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
1043 struct iscsi_param *param_mxdsl;
1044 unsigned long long tmp;
1047 rc = kstrtoull(param->value, 0, &tmp);
1051 conn->conn_ops->MaxRecvDataSegmentLength = tmp;
1052 pr_debug("Saving op->MaxRecvDataSegmentLength from"
1053 " original initiator received value: %u\n",
1054 conn->conn_ops->MaxRecvDataSegmentLength);
1056 param_mxdsl = iscsi_find_param_from_key(
1057 MAXXMITDATASEGMENTLENGTH,
1062 rc = iscsi_update_param_value(param,
1063 param_mxdsl->value);
1067 pr_debug("Updated %s to target MXDSL value: %s\n",
1068 param->name, param->value);
1070 } else if (IS_TYPE_VALUE_LIST(param)) {
1071 negotiated_value = iscsi_check_valuelist_for_support(
1073 if (!negotiated_value) {
1074 pr_err("Proposer's value list \"%s\" contains"
1075 " no valid values from Acceptor's value list"
1076 " \"%s\".\n", value, param->value);
1079 if (iscsi_update_param_value(param, negotiated_value) < 0)
1081 } else if (IS_PHASE_DECLARATIVE(param)) {
1082 if (iscsi_update_param_value(param, value) < 0)
1084 SET_PSTATE_REPLY_OPTIONAL(param);
1090 static int iscsi_check_proposer_state(struct iscsi_param *param, char *value)
1092 if (IS_PSTATE_RESPONSE_GOT(param)) {
1093 pr_err("Received key \"%s\" twice, protocol error.\n",
1098 if (IS_TYPE_VALUE_LIST(param)) {
1099 char *comma_ptr = NULL, *tmp_ptr = NULL;
1101 comma_ptr = strchr(value, ',');
1103 pr_err("Illegal \",\" in response for \"%s\".\n",
1108 tmp_ptr = iscsi_check_valuelist_for_support(param, value);
1113 if (iscsi_update_param_value(param, value) < 0)
1119 static int iscsi_check_value(struct iscsi_param *param, char *value)
1121 char *comma_ptr = NULL;
1123 if (!strcmp(value, REJECT)) {
1124 if (!strcmp(param->name, IFMARKINT) ||
1125 !strcmp(param->name, OFMARKINT)) {
1127 * Reject is not fatal for [I,O]FMarkInt, and causes
1128 * [I,O]FMarker to be reset to No. (See iSCSI v20 A.3.2)
1130 SET_PSTATE_REJECT(param);
1133 pr_err("Received %s=%s\n", param->name, value);
1136 if (!strcmp(value, IRRELEVANT)) {
1137 pr_debug("Received %s=%s\n", param->name, value);
1138 SET_PSTATE_IRRELEVANT(param);
1141 if (!strcmp(value, NOTUNDERSTOOD)) {
1142 if (!IS_PSTATE_PROPOSER(param)) {
1143 pr_err("Received illegal offer %s=%s\n",
1144 param->name, value);
1148 /* #warning FIXME: Add check for X-ExtensionKey here */
1149 pr_err("Standard iSCSI key \"%s\" cannot be answered"
1150 " with \"%s\", protocol error.\n", param->name, value);
1156 comma_ptr = strchr(value, ',');
1158 if (comma_ptr && !IS_TYPE_VALUE_LIST(param)) {
1159 pr_err("Detected value separator \",\", but"
1160 " key \"%s\" does not allow a value list,"
1161 " protocol error.\n", param->name);
1167 if (strlen(value) > VALUE_MAXLEN) {
1168 pr_err("Value for key \"%s\" exceeds %d,"
1169 " protocol error.\n", param->name,
1174 if (IS_TYPE_BOOL_AND(param) || IS_TYPE_BOOL_OR(param)) {
1175 if (iscsi_check_boolean_value(param, value) < 0)
1177 } else if (IS_TYPE_NUMBER(param)) {
1178 if (iscsi_check_numerical_value(param, value) < 0)
1180 } else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) {
1181 if (iscsi_check_string_or_list_value(param, value) < 0)
1184 pr_err("Huh? 0x%02x\n", param->type);
1197 static struct iscsi_param *__iscsi_check_key(
1200 struct iscsi_param_list *param_list)
1202 struct iscsi_param *param;
1204 if (strlen(key) > KEY_MAXLEN) {
1205 pr_err("Length of key name \"%s\" exceeds %d.\n",
1210 param = iscsi_find_param_from_key(key, param_list);
1214 if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
1215 pr_err("Key \"%s\" may not be sent to %s,"
1216 " protocol error.\n", param->name,
1217 (sender & SENDER_RECEIVER) ? "target" : "initiator");
1221 if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
1222 pr_err("Key \"%s\" may not be sent to %s,"
1223 " protocol error.\n", param->name,
1224 (sender & SENDER_RECEIVER) ? "initiator" : "target");
1231 static struct iscsi_param *iscsi_check_key(
1235 struct iscsi_param_list *param_list)
1237 struct iscsi_param *param;
1239 * Key name length must not exceed 63 bytes. (See iSCSI v20 5.1)
1241 if (strlen(key) > KEY_MAXLEN) {
1242 pr_err("Length of key name \"%s\" exceeds %d.\n",
1247 param = iscsi_find_param_from_key(key, param_list);
1251 if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
1252 pr_err("Key \"%s\" may not be sent to %s,"
1253 " protocol error.\n", param->name,
1254 (sender & SENDER_RECEIVER) ? "target" : "initiator");
1257 if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
1258 pr_err("Key \"%s\" may not be sent to %s,"
1259 " protocol error.\n", param->name,
1260 (sender & SENDER_RECEIVER) ? "initiator" : "target");
1264 if (IS_PSTATE_ACCEPTOR(param)) {
1265 pr_err("Key \"%s\" received twice, protocol error.\n",
1273 if (!(param->phase & phase)) {
1274 pr_err("Key \"%s\" may not be negotiated during ",
1277 case PHASE_SECURITY:
1278 pr_debug("Security phase.\n");
1280 case PHASE_OPERATIONAL:
1281 pr_debug("Operational phase.\n");
1284 pr_debug("Unknown phase.\n");
1292 static int iscsi_enforce_integrity_rules(
1294 struct iscsi_param_list *param_list)
1297 u8 DataSequenceInOrder = 0;
1298 u8 ErrorRecoveryLevel = 0, SessionType = 0;
1299 u32 FirstBurstLength = 0, MaxBurstLength = 0;
1300 struct iscsi_param *param = NULL;
1302 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1303 if (!(param->phase & phase))
1305 if (!strcmp(param->name, SESSIONTYPE))
1306 if (!strcmp(param->value, NORMAL))
1308 if (!strcmp(param->name, ERRORRECOVERYLEVEL))
1309 ErrorRecoveryLevel = simple_strtoul(param->value,
1311 if (!strcmp(param->name, DATASEQUENCEINORDER))
1312 if (!strcmp(param->value, YES))
1313 DataSequenceInOrder = 1;
1314 if (!strcmp(param->name, MAXBURSTLENGTH))
1315 MaxBurstLength = simple_strtoul(param->value,
1319 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1320 if (!(param->phase & phase))
1322 if (!SessionType && !IS_PSTATE_ACCEPTOR(param))
1324 if (!strcmp(param->name, MAXOUTSTANDINGR2T) &&
1325 DataSequenceInOrder && (ErrorRecoveryLevel > 0)) {
1326 if (strcmp(param->value, "1")) {
1327 if (iscsi_update_param_value(param, "1") < 0)
1329 pr_debug("Reset \"%s\" to \"%s\".\n",
1330 param->name, param->value);
1333 if (!strcmp(param->name, MAXCONNECTIONS) && !SessionType) {
1334 if (strcmp(param->value, "1")) {
1335 if (iscsi_update_param_value(param, "1") < 0)
1337 pr_debug("Reset \"%s\" to \"%s\".\n",
1338 param->name, param->value);
1341 if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
1342 FirstBurstLength = simple_strtoul(param->value,
1344 if (FirstBurstLength > MaxBurstLength) {
1346 memset(tmpbuf, 0, sizeof(tmpbuf));
1347 sprintf(tmpbuf, "%u", MaxBurstLength);
1348 if (iscsi_update_param_value(param, tmpbuf))
1350 pr_debug("Reset \"%s\" to \"%s\".\n",
1351 param->name, param->value);
1359 int iscsi_decode_text_input(
1364 struct iscsi_conn *conn)
1366 struct iscsi_param_list *param_list = conn->param_list;
1367 char *tmpbuf, *start = NULL, *end = NULL;
1369 tmpbuf = kzalloc(length + 1, GFP_KERNEL);
1371 pr_err("Unable to allocate %u + 1 bytes for tmpbuf.\n", length);
1375 memcpy(tmpbuf, textbuf, length);
1376 tmpbuf[length] = '\0';
1378 end = (start + length);
1380 while (start < end) {
1382 struct iscsi_param *param;
1384 if (iscsi_extract_key_value(start, &key, &value) < 0) {
1389 pr_debug("Got key: %s=%s\n", key, value);
1391 if (phase & PHASE_SECURITY) {
1392 if (iscsi_check_for_auth_key(key) > 0) {
1398 param = iscsi_check_key(key, phase, sender, param_list);
1400 if (iscsi_add_notunderstood_response(key,
1401 value, param_list) < 0) {
1405 start += strlen(key) + strlen(value) + 2;
1408 if (iscsi_check_value(param, value) < 0) {
1413 start += strlen(key) + strlen(value) + 2;
1415 if (IS_PSTATE_PROPOSER(param)) {
1416 if (iscsi_check_proposer_state(param, value) < 0) {
1420 SET_PSTATE_RESPONSE_GOT(param);
1422 if (iscsi_check_acceptor_state(param, value, conn) < 0) {
1426 SET_PSTATE_ACCEPTOR(param);
1434 int iscsi_encode_text_output(
1439 struct iscsi_param_list *param_list)
1441 char *output_buf = NULL;
1442 struct iscsi_extra_response *er;
1443 struct iscsi_param *param;
1445 output_buf = textbuf + *length;
1447 if (iscsi_enforce_integrity_rules(phase, param_list) < 0)
1450 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1451 if (!(param->sender & sender))
1453 if (IS_PSTATE_ACCEPTOR(param) &&
1454 !IS_PSTATE_RESPONSE_SENT(param) &&
1455 !IS_PSTATE_REPLY_OPTIONAL(param) &&
1456 (param->phase & phase)) {
1457 *length += sprintf(output_buf, "%s=%s",
1458 param->name, param->value);
1460 output_buf = textbuf + *length;
1461 SET_PSTATE_RESPONSE_SENT(param);
1462 pr_debug("Sending key: %s=%s\n",
1463 param->name, param->value);
1466 if (IS_PSTATE_NEGOTIATE(param) &&
1467 !IS_PSTATE_ACCEPTOR(param) &&
1468 !IS_PSTATE_PROPOSER(param) &&
1469 (param->phase & phase)) {
1470 *length += sprintf(output_buf, "%s=%s",
1471 param->name, param->value);
1473 output_buf = textbuf + *length;
1474 SET_PSTATE_PROPOSER(param);
1475 iscsi_check_proposer_for_optional_reply(param);
1476 pr_debug("Sending key: %s=%s\n",
1477 param->name, param->value);
1481 list_for_each_entry(er, ¶m_list->extra_response_list, er_list) {
1482 *length += sprintf(output_buf, "%s=%s", er->key, er->value);
1484 output_buf = textbuf + *length;
1485 pr_debug("Sending key: %s=%s\n", er->key, er->value);
1487 iscsi_release_extra_responses(param_list);
1492 int iscsi_check_negotiated_keys(struct iscsi_param_list *param_list)
1495 struct iscsi_param *param;
1497 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1498 if (IS_PSTATE_NEGOTIATE(param) &&
1499 IS_PSTATE_PROPOSER(param) &&
1500 !IS_PSTATE_RESPONSE_GOT(param) &&
1501 !IS_PSTATE_REPLY_OPTIONAL(param) &&
1502 !IS_PHASE_DECLARATIVE(param)) {
1503 pr_err("No response for proposed key \"%s\".\n",
1512 int iscsi_change_param_value(
1514 struct iscsi_param_list *param_list,
1517 char *key = NULL, *value = NULL;
1518 struct iscsi_param *param;
1521 if (iscsi_extract_key_value(keyvalue, &key, &value) < 0)
1525 param = __iscsi_check_key(keyvalue, sender, param_list);
1529 param = iscsi_check_key(keyvalue, 0, sender, param_list);
1533 param->set_param = 1;
1534 if (iscsi_check_value(param, value) < 0) {
1535 param->set_param = 0;
1538 param->set_param = 0;
1541 if (iscsi_update_param_value(param, value) < 0)
1547 void iscsi_set_connection_parameters(
1548 struct iscsi_conn_ops *ops,
1549 struct iscsi_param_list *param_list)
1552 struct iscsi_param *param;
1554 pr_debug("---------------------------------------------------"
1555 "---------------\n");
1556 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1558 * Special case to set MAXXMITDATASEGMENTLENGTH from the
1559 * target requested MaxRecvDataSegmentLength, even though
1560 * this key is not sent over the wire.
1562 if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
1563 ops->MaxXmitDataSegmentLength =
1564 simple_strtoul(param->value, &tmpptr, 0);
1565 pr_debug("MaxXmitDataSegmentLength: %s\n",
1569 if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
1571 if (!strcmp(param->name, AUTHMETHOD)) {
1572 pr_debug("AuthMethod: %s\n",
1574 } else if (!strcmp(param->name, HEADERDIGEST)) {
1575 ops->HeaderDigest = !strcmp(param->value, CRC32C);
1576 pr_debug("HeaderDigest: %s\n",
1578 } else if (!strcmp(param->name, DATADIGEST)) {
1579 ops->DataDigest = !strcmp(param->value, CRC32C);
1580 pr_debug("DataDigest: %s\n",
1582 } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
1584 * At this point iscsi_check_acceptor_state() will have
1585 * set ops->MaxRecvDataSegmentLength from the original
1586 * initiator provided value.
1588 pr_debug("MaxRecvDataSegmentLength: %u\n",
1589 ops->MaxRecvDataSegmentLength);
1590 } else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) {
1591 ops->InitiatorRecvDataSegmentLength =
1592 simple_strtoul(param->value, &tmpptr, 0);
1593 pr_debug("InitiatorRecvDataSegmentLength: %s\n",
1595 ops->MaxRecvDataSegmentLength =
1596 ops->InitiatorRecvDataSegmentLength;
1597 pr_debug("Set MRDSL from InitiatorRecvDataSegmentLength\n");
1598 } else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) {
1599 ops->TargetRecvDataSegmentLength =
1600 simple_strtoul(param->value, &tmpptr, 0);
1601 pr_debug("TargetRecvDataSegmentLength: %s\n",
1603 ops->MaxXmitDataSegmentLength =
1604 ops->TargetRecvDataSegmentLength;
1605 pr_debug("Set MXDSL from TargetRecvDataSegmentLength\n");
1608 pr_debug("----------------------------------------------------"
1609 "--------------\n");
1612 void iscsi_set_session_parameters(
1613 struct iscsi_sess_ops *ops,
1614 struct iscsi_param_list *param_list,
1618 struct iscsi_param *param;
1620 pr_debug("----------------------------------------------------"
1621 "--------------\n");
1622 list_for_each_entry(param, ¶m_list->param_list, p_list) {
1623 if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
1625 if (!strcmp(param->name, INITIATORNAME)) {
1629 snprintf(ops->InitiatorName,
1630 sizeof(ops->InitiatorName),
1631 "%s", param->value);
1632 pr_debug("InitiatorName: %s\n",
1634 } else if (!strcmp(param->name, INITIATORALIAS)) {
1637 snprintf(ops->InitiatorAlias,
1638 sizeof(ops->InitiatorAlias),
1639 "%s", param->value);
1640 pr_debug("InitiatorAlias: %s\n",
1642 } else if (!strcmp(param->name, TARGETNAME)) {
1646 snprintf(ops->TargetName,
1647 sizeof(ops->TargetName),
1648 "%s", param->value);
1649 pr_debug("TargetName: %s\n",
1651 } else if (!strcmp(param->name, TARGETALIAS)) {
1654 snprintf(ops->TargetAlias, sizeof(ops->TargetAlias),
1655 "%s", param->value);
1656 pr_debug("TargetAlias: %s\n",
1658 } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
1659 ops->TargetPortalGroupTag =
1660 simple_strtoul(param->value, &tmpptr, 0);
1661 pr_debug("TargetPortalGroupTag: %s\n",
1663 } else if (!strcmp(param->name, MAXCONNECTIONS)) {
1664 ops->MaxConnections =
1665 simple_strtoul(param->value, &tmpptr, 0);
1666 pr_debug("MaxConnections: %s\n",
1668 } else if (!strcmp(param->name, INITIALR2T)) {
1669 ops->InitialR2T = !strcmp(param->value, YES);
1670 pr_debug("InitialR2T: %s\n",
1672 } else if (!strcmp(param->name, IMMEDIATEDATA)) {
1673 ops->ImmediateData = !strcmp(param->value, YES);
1674 pr_debug("ImmediateData: %s\n",
1676 } else if (!strcmp(param->name, MAXBURSTLENGTH)) {
1677 ops->MaxBurstLength =
1678 simple_strtoul(param->value, &tmpptr, 0);
1679 pr_debug("MaxBurstLength: %s\n",
1681 } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
1682 ops->FirstBurstLength =
1683 simple_strtoul(param->value, &tmpptr, 0);
1684 pr_debug("FirstBurstLength: %s\n",
1686 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
1687 ops->DefaultTime2Wait =
1688 simple_strtoul(param->value, &tmpptr, 0);
1689 pr_debug("DefaultTime2Wait: %s\n",
1691 } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
1692 ops->DefaultTime2Retain =
1693 simple_strtoul(param->value, &tmpptr, 0);
1694 pr_debug("DefaultTime2Retain: %s\n",
1696 } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
1697 ops->MaxOutstandingR2T =
1698 simple_strtoul(param->value, &tmpptr, 0);
1699 pr_debug("MaxOutstandingR2T: %s\n",
1701 } else if (!strcmp(param->name, DATAPDUINORDER)) {
1702 ops->DataPDUInOrder = !strcmp(param->value, YES);
1703 pr_debug("DataPDUInOrder: %s\n",
1705 } else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
1706 ops->DataSequenceInOrder = !strcmp(param->value, YES);
1707 pr_debug("DataSequenceInOrder: %s\n",
1709 } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
1710 ops->ErrorRecoveryLevel =
1711 simple_strtoul(param->value, &tmpptr, 0);
1712 pr_debug("ErrorRecoveryLevel: %s\n",
1714 } else if (!strcmp(param->name, SESSIONTYPE)) {
1715 ops->SessionType = !strcmp(param->value, DISCOVERY);
1716 pr_debug("SessionType: %s\n",
1718 } else if (!strcmp(param->name, RDMAEXTENSIONS)) {
1719 ops->RDMAExtensions = !strcmp(param->value, YES);
1720 pr_debug("RDMAExtensions: %s\n",
1724 pr_debug("----------------------------------------------------"
1725 "--------------\n");