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iscsi-target: Remove unused variables in iscsi_target_parameters.c
[deliverable/linux.git] / drivers / target / iscsi / iscsi_target_parameters.c
CommitLineData
e48354ce
NB		 1/*******************************************************************************
2 * This file contains main functions related to iSCSI Parameter negotiation.
3 *
4 * \u00a9 Copyright 2007-2011 RisingTide Systems LLC.
5 *
6 * Licensed to the Linux Foundation under the General Public License (GPL) version 2.
7 *
8 * Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 ******************************************************************************/
20
21#include <linux/slab.h>
22
23#include "iscsi_target_core.h"
24#include "iscsi_target_util.h"
25#include "iscsi_target_parameters.h"
26
27int iscsi_login_rx_data(
28 struct iscsi_conn *conn,
29 char *buf,
30 int length)
31{
32 int rx_got;
33 struct kvec iov;
34
35 memset(&iov, 0, sizeof(struct kvec));
36 iov.iov_len = length;
37 iov.iov_base = buf;
38
39 /*
40 * Initial Marker-less Interval.
41 * Add the values regardless of IFMarker/OFMarker, considering
42 * it may not be negoitated yet.
43 */
44 conn->of_marker += length;
45
46 rx_got = rx_data(conn, &iov, 1, length);
47 if (rx_got != length) {
48 pr_err("rx_data returned %d, expecting %d.\n",
49 rx_got, length);
50 return -1;
51 }
52
53 return 0 ;
54}
55
56int iscsi_login_tx_data(
57 struct iscsi_conn *conn,
58 char *pdu_buf,
59 char *text_buf,
60 int text_length)
61{
62 int length, tx_sent;
63 struct kvec iov[2];
64
65 length = (ISCSI_HDR_LEN + text_length);
66
67 memset(&iov[0], 0, 2 * sizeof(struct kvec));
68 iov[0].iov_len = ISCSI_HDR_LEN;
69 iov[0].iov_base = pdu_buf;
70 iov[1].iov_len = text_length;
71 iov[1].iov_base = text_buf;
72
73 /*
74 * Initial Marker-less Interval.
75 * Add the values regardless of IFMarker/OFMarker, considering
76 * it may not be negoitated yet.
77 */
78 conn->if_marker += length;
79
80 tx_sent = tx_data(conn, &iov[0], 2, length);
81 if (tx_sent != length) {
82 pr_err("tx_data returned %d, expecting %d.\n",
83 tx_sent, length);
84 return -1;
85 }
86
87 return 0;
88}
89
90void iscsi_dump_conn_ops(struct iscsi_conn_ops *conn_ops)
91{
92 pr_debug("HeaderDigest: %s\n", (conn_ops->HeaderDigest) ?
93 "CRC32C" : "None");
94 pr_debug("DataDigest: %s\n", (conn_ops->DataDigest) ?
95 "CRC32C" : "None");
96 pr_debug("MaxRecvDataSegmentLength: %u\n",
97 conn_ops->MaxRecvDataSegmentLength);
98 pr_debug("OFMarker: %s\n", (conn_ops->OFMarker) ? "Yes" : "No");
99 pr_debug("IFMarker: %s\n", (conn_ops->IFMarker) ? "Yes" : "No");
100 if (conn_ops->OFMarker)
101 pr_debug("OFMarkInt: %u\n", conn_ops->OFMarkInt);
102 if (conn_ops->IFMarker)
103 pr_debug("IFMarkInt: %u\n", conn_ops->IFMarkInt);
104}
105
106void iscsi_dump_sess_ops(struct iscsi_sess_ops *sess_ops)
107{
108 pr_debug("InitiatorName: %s\n", sess_ops->InitiatorName);
109 pr_debug("InitiatorAlias: %s\n", sess_ops->InitiatorAlias);
110 pr_debug("TargetName: %s\n", sess_ops->TargetName);
111 pr_debug("TargetAlias: %s\n", sess_ops->TargetAlias);
112 pr_debug("TargetPortalGroupTag: %hu\n",
113 sess_ops->TargetPortalGroupTag);
114 pr_debug("MaxConnections: %hu\n", sess_ops->MaxConnections);
115 pr_debug("InitialR2T: %s\n",
116 (sess_ops->InitialR2T) ? "Yes" : "No");
117 pr_debug("ImmediateData: %s\n", (sess_ops->ImmediateData) ?
118 "Yes" : "No");
119 pr_debug("MaxBurstLength: %u\n", sess_ops->MaxBurstLength);
120 pr_debug("FirstBurstLength: %u\n", sess_ops->FirstBurstLength);
121 pr_debug("DefaultTime2Wait: %hu\n", sess_ops->DefaultTime2Wait);
122 pr_debug("DefaultTime2Retain: %hu\n",
123 sess_ops->DefaultTime2Retain);
124 pr_debug("MaxOutstandingR2T: %hu\n",
125 sess_ops->MaxOutstandingR2T);
126 pr_debug("DataPDUInOrder: %s\n",
127 (sess_ops->DataPDUInOrder) ? "Yes" : "No");
128 pr_debug("DataSequenceInOrder: %s\n",
129 (sess_ops->DataSequenceInOrder) ? "Yes" : "No");
130 pr_debug("ErrorRecoveryLevel: %hu\n",
131 sess_ops->ErrorRecoveryLevel);
132 pr_debug("SessionType: %s\n", (sess_ops->SessionType) ?
133 "Discovery" : "Normal");
134}
135
136void iscsi_print_params(struct iscsi_param_list *param_list)
137{
138 struct iscsi_param *param;
139
140 list_for_each_entry(param, &param_list->param_list, p_list)
141 pr_debug("%s: %s\n", param->name, param->value);
142}
143
144static struct iscsi_param *iscsi_set_default_param(struct iscsi_param_list *param_list,
145 char *name, char *value, u8 phase, u8 scope, u8 sender,
146 u16 type_range, u8 use)
147{
148 struct iscsi_param *param = NULL;
149
150 param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL);
151 if (!param) {
152 pr_err("Unable to allocate memory for parameter.\n");
153 goto out;
154 }
155 INIT_LIST_HEAD(&param->p_list);
156
157 param->name = kzalloc(strlen(name) + 1, GFP_KERNEL);
158 if (!param->name) {
159 pr_err("Unable to allocate memory for parameter name.\n");
160 goto out;
161 }
162
163 param->value = kzalloc(strlen(value) + 1, GFP_KERNEL);
164 if (!param->value) {
165 pr_err("Unable to allocate memory for parameter value.\n");
166 goto out;
167 }
168
169 memcpy(param->name, name, strlen(name));
170 param->name[strlen(name)] = '\0';
171 memcpy(param->value, value, strlen(value));
172 param->value[strlen(value)] = '\0';
173 param->phase = phase;
174 param->scope = scope;
175 param->sender = sender;
176 param->use = use;
177 param->type_range = type_range;
178
179 switch (param->type_range) {
180 case TYPERANGE_BOOL_AND:
181 param->type = TYPE_BOOL_AND;
182 break;
183 case TYPERANGE_BOOL_OR:
184 param->type = TYPE_BOOL_OR;
185 break;
186 case TYPERANGE_0_TO_2:
187 case TYPERANGE_0_TO_3600:
188 case TYPERANGE_0_TO_32767:
189 case TYPERANGE_0_TO_65535:
190 case TYPERANGE_1_TO_65535:
191 case TYPERANGE_2_TO_3600:
192 case TYPERANGE_512_TO_16777215:
193 param->type = TYPE_NUMBER;
194 break;
195 case TYPERANGE_AUTH:
196 case TYPERANGE_DIGEST:
197 param->type = TYPE_VALUE_LIST | TYPE_STRING;
198 break;
199 case TYPERANGE_MARKINT:
200 param->type = TYPE_NUMBER_RANGE;
201 param->type_range |= TYPERANGE_1_TO_65535;
202 break;
203 case TYPERANGE_ISCSINAME:
204 case TYPERANGE_SESSIONTYPE:
205 case TYPERANGE_TARGETADDRESS:
206 case TYPERANGE_UTF8:
207 param->type = TYPE_STRING;
208 break;
209 default:
210 pr_err("Unknown type_range 0x%02x\n",
211 param->type_range);
212 goto out;
213 }
214 list_add_tail(&param->p_list, &param_list->param_list);
215
216 return param;
217out:
218 if (param) {
219 kfree(param->value);
220 kfree(param->name);
221 kfree(param);
222 }
223
224 return NULL;
225}
226
227/* #warning Add extension keys */
228int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr)
229{
230 struct iscsi_param *param = NULL;
231 struct iscsi_param_list *pl;
232
233 pl = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
234 if (!pl) {
235 pr_err("Unable to allocate memory for"
236 " struct iscsi_param_list.\n");
237 return -1 ;
238 }
239 INIT_LIST_HEAD(&pl->param_list);
240 INIT_LIST_HEAD(&pl->extra_response_list);
241
242 /*
243 * The format for setting the initial parameter definitions are:
244 *
245 * Parameter name:
246 * Initial value:
247 * Allowable phase:
248 * Scope:
249 * Allowable senders:
250 * Typerange:
251 * Use:
252 */
253 param = iscsi_set_default_param(pl, AUTHMETHOD, INITIAL_AUTHMETHOD,
254 PHASE_SECURITY, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
255 TYPERANGE_AUTH, USE_INITIAL_ONLY);
256 if (!param)
257 goto out;
258
259 param = iscsi_set_default_param(pl, HEADERDIGEST, INITIAL_HEADERDIGEST,
260 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
261 TYPERANGE_DIGEST, USE_INITIAL_ONLY);
262 if (!param)
263 goto out;
264
265 param = iscsi_set_default_param(pl, DATADIGEST, INITIAL_DATADIGEST,
266 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
267 TYPERANGE_DIGEST, USE_INITIAL_ONLY);
268 if (!param)
269 goto out;
270
271 param = iscsi_set_default_param(pl, MAXCONNECTIONS,
272 INITIAL_MAXCONNECTIONS, PHASE_OPERATIONAL,
273 SCOPE_SESSION_WIDE, SENDER_BOTH,
274 TYPERANGE_1_TO_65535, USE_LEADING_ONLY);
275 if (!param)
276 goto out;
277
278 param = iscsi_set_default_param(pl, SENDTARGETS, INITIAL_SENDTARGETS,
279 PHASE_FFP0, SCOPE_SESSION_WIDE, SENDER_INITIATOR,
280 TYPERANGE_UTF8, 0);
281 if (!param)
282 goto out;
283
284 param = iscsi_set_default_param(pl, TARGETNAME, INITIAL_TARGETNAME,
285 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_BOTH,
286 TYPERANGE_ISCSINAME, USE_ALL);
287 if (!param)
288 goto out;
289
290 param = iscsi_set_default_param(pl, INITIATORNAME,
291 INITIAL_INITIATORNAME, PHASE_DECLARATIVE,
292 SCOPE_SESSION_WIDE, SENDER_INITIATOR,
293 TYPERANGE_ISCSINAME, USE_INITIAL_ONLY);
294 if (!param)
295 goto out;
296
297 param = iscsi_set_default_param(pl, TARGETALIAS, INITIAL_TARGETALIAS,
298 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET,
299 TYPERANGE_UTF8, USE_ALL);
300 if (!param)
301 goto out;
302
303 param = iscsi_set_default_param(pl, INITIATORALIAS,
304 INITIAL_INITIATORALIAS, PHASE_DECLARATIVE,
305 SCOPE_SESSION_WIDE, SENDER_INITIATOR, TYPERANGE_UTF8,
306 USE_ALL);
307 if (!param)
308 goto out;
309
310 param = iscsi_set_default_param(pl, TARGETADDRESS,
311 INITIAL_TARGETADDRESS, PHASE_DECLARATIVE,
312 SCOPE_SESSION_WIDE, SENDER_TARGET,
313 TYPERANGE_TARGETADDRESS, USE_ALL);
314 if (!param)
315 goto out;
316
317 param = iscsi_set_default_param(pl, TARGETPORTALGROUPTAG,
318 INITIAL_TARGETPORTALGROUPTAG,
319 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET,
320 TYPERANGE_0_TO_65535, USE_INITIAL_ONLY);
321 if (!param)
322 goto out;
323
324 param = iscsi_set_default_param(pl, INITIALR2T, INITIAL_INITIALR2T,
325 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
326 TYPERANGE_BOOL_OR, USE_LEADING_ONLY);
327 if (!param)
328 goto out;
329
330 param = iscsi_set_default_param(pl, IMMEDIATEDATA,
331 INITIAL_IMMEDIATEDATA, PHASE_OPERATIONAL,
332 SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_AND,
333 USE_LEADING_ONLY);
334 if (!param)
335 goto out;
336
337 param = iscsi_set_default_param(pl, MAXRECVDATASEGMENTLENGTH,
338 INITIAL_MAXRECVDATASEGMENTLENGTH,
339 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
340 TYPERANGE_512_TO_16777215, USE_ALL);
341 if (!param)
342 goto out;
343
344 param = iscsi_set_default_param(pl, MAXBURSTLENGTH,
345 INITIAL_MAXBURSTLENGTH, PHASE_OPERATIONAL,
346 SCOPE_SESSION_WIDE, SENDER_BOTH,
347 TYPERANGE_512_TO_16777215, USE_LEADING_ONLY);
348 if (!param)
349 goto out;
350
351 param = iscsi_set_default_param(pl, FIRSTBURSTLENGTH,
352 INITIAL_FIRSTBURSTLENGTH,
353 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
354 TYPERANGE_512_TO_16777215, USE_LEADING_ONLY);
355 if (!param)
356 goto out;
357
358 param = iscsi_set_default_param(pl, DEFAULTTIME2WAIT,
359 INITIAL_DEFAULTTIME2WAIT,
360 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
361 TYPERANGE_0_TO_3600, USE_LEADING_ONLY);
362 if (!param)
363 goto out;
364
365 param = iscsi_set_default_param(pl, DEFAULTTIME2RETAIN,
366 INITIAL_DEFAULTTIME2RETAIN,
367 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
368 TYPERANGE_0_TO_3600, USE_LEADING_ONLY);
369 if (!param)
370 goto out;
371
372 param = iscsi_set_default_param(pl, MAXOUTSTANDINGR2T,
373 INITIAL_MAXOUTSTANDINGR2T,
374 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
375 TYPERANGE_1_TO_65535, USE_LEADING_ONLY);
376 if (!param)
377 goto out;
378
379 param = iscsi_set_default_param(pl, DATAPDUINORDER,
380 INITIAL_DATAPDUINORDER, PHASE_OPERATIONAL,
381 SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_OR,
382 USE_LEADING_ONLY);
383 if (!param)
384 goto out;
385
386 param = iscsi_set_default_param(pl, DATASEQUENCEINORDER,
387 INITIAL_DATASEQUENCEINORDER,
388 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
389 TYPERANGE_BOOL_OR, USE_LEADING_ONLY);
390 if (!param)
391 goto out;
392
393 param = iscsi_set_default_param(pl, ERRORRECOVERYLEVEL,
394 INITIAL_ERRORRECOVERYLEVEL,
395 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
396 TYPERANGE_0_TO_2, USE_LEADING_ONLY);
397 if (!param)
398 goto out;
399
400 param = iscsi_set_default_param(pl, SESSIONTYPE, INITIAL_SESSIONTYPE,
401 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_INITIATOR,
402 TYPERANGE_SESSIONTYPE, USE_LEADING_ONLY);
403 if (!param)
404 goto out;
405
406 param = iscsi_set_default_param(pl, IFMARKER, INITIAL_IFMARKER,
407 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
408 TYPERANGE_BOOL_AND, USE_INITIAL_ONLY);
409 if (!param)
410 goto out;
411
412 param = iscsi_set_default_param(pl, OFMARKER, INITIAL_OFMARKER,
413 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
414 TYPERANGE_BOOL_AND, USE_INITIAL_ONLY);
415 if (!param)
416 goto out;
417
418 param = iscsi_set_default_param(pl, IFMARKINT, INITIAL_IFMARKINT,
419 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
420 TYPERANGE_MARKINT, USE_INITIAL_ONLY);
421 if (!param)
422 goto out;
423
424 param = iscsi_set_default_param(pl, OFMARKINT, INITIAL_OFMARKINT,
425 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
426 TYPERANGE_MARKINT, USE_INITIAL_ONLY);
427 if (!param)
428 goto out;
429
430 *param_list_ptr = pl;
431 return 0;
432out:
433 iscsi_release_param_list(pl);
434 return -1;
435}
436
437int iscsi_set_keys_to_negotiate(
438 int sessiontype,
439 struct iscsi_param_list *param_list)
440{
441 struct iscsi_param *param;
442
443 list_for_each_entry(param, &param_list->param_list, p_list) {
444 param->state = 0;
445 if (!strcmp(param->name, AUTHMETHOD)) {
446 SET_PSTATE_NEGOTIATE(param);
447 } else if (!strcmp(param->name, HEADERDIGEST)) {
448 SET_PSTATE_NEGOTIATE(param);
449 } else if (!strcmp(param->name, DATADIGEST)) {
450 SET_PSTATE_NEGOTIATE(param);
451 } else if (!strcmp(param->name, MAXCONNECTIONS)) {
452 SET_PSTATE_NEGOTIATE(param);
453 } else if (!strcmp(param->name, TARGETNAME)) {
454 continue;
455 } else if (!strcmp(param->name, INITIATORNAME)) {
456 continue;
457 } else if (!strcmp(param->name, TARGETALIAS)) {
458 if (param->value)
459 SET_PSTATE_NEGOTIATE(param);
460 } else if (!strcmp(param->name, INITIATORALIAS)) {
461 continue;
462 } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
463 SET_PSTATE_NEGOTIATE(param);
464 } else if (!strcmp(param->name, INITIALR2T)) {
465 SET_PSTATE_NEGOTIATE(param);
466 } else if (!strcmp(param->name, IMMEDIATEDATA)) {
467 SET_PSTATE_NEGOTIATE(param);
468 } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
469 SET_PSTATE_NEGOTIATE(param);
470 } else if (!strcmp(param->name, MAXBURSTLENGTH)) {
471 SET_PSTATE_NEGOTIATE(param);
472 } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
473 SET_PSTATE_NEGOTIATE(param);
474 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
475 SET_PSTATE_NEGOTIATE(param);
476 } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
477 SET_PSTATE_NEGOTIATE(param);
478 } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
479 SET_PSTATE_NEGOTIATE(param);
480 } else if (!strcmp(param->name, DATAPDUINORDER)) {
481 SET_PSTATE_NEGOTIATE(param);
482 } else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
483 SET_PSTATE_NEGOTIATE(param);
484 } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
485 SET_PSTATE_NEGOTIATE(param);
486 } else if (!strcmp(param->name, SESSIONTYPE)) {
487 SET_PSTATE_NEGOTIATE(param);
488 } else if (!strcmp(param->name, IFMARKER)) {
489 SET_PSTATE_NEGOTIATE(param);
490 } else if (!strcmp(param->name, OFMARKER)) {
491 SET_PSTATE_NEGOTIATE(param);
492 } else if (!strcmp(param->name, IFMARKINT)) {
493 SET_PSTATE_NEGOTIATE(param);
494 } else if (!strcmp(param->name, OFMARKINT)) {
495 SET_PSTATE_NEGOTIATE(param);
496 }
497 }
498
499 return 0;
500}
501
502int iscsi_set_keys_irrelevant_for_discovery(
503 struct iscsi_param_list *param_list)
504{
505 struct iscsi_param *param;
506
507 list_for_each_entry(param, &param_list->param_list, p_list) {
508 if (!strcmp(param->name, MAXCONNECTIONS))
509 param->state &= ~PSTATE_NEGOTIATE;
510 else if (!strcmp(param->name, INITIALR2T))
511 param->state &= ~PSTATE_NEGOTIATE;
512 else if (!strcmp(param->name, IMMEDIATEDATA))
513 param->state &= ~PSTATE_NEGOTIATE;
514 else if (!strcmp(param->name, MAXBURSTLENGTH))
515 param->state &= ~PSTATE_NEGOTIATE;
516 else if (!strcmp(param->name, FIRSTBURSTLENGTH))
517 param->state &= ~PSTATE_NEGOTIATE;
518 else if (!strcmp(param->name, MAXOUTSTANDINGR2T))
519 param->state &= ~PSTATE_NEGOTIATE;
520 else if (!strcmp(param->name, DATAPDUINORDER))
521 param->state &= ~PSTATE_NEGOTIATE;
522 else if (!strcmp(param->name, DATASEQUENCEINORDER))
523 param->state &= ~PSTATE_NEGOTIATE;
524 else if (!strcmp(param->name, ERRORRECOVERYLEVEL))
525 param->state &= ~PSTATE_NEGOTIATE;
526 else if (!strcmp(param->name, DEFAULTTIME2WAIT))
527 param->state &= ~PSTATE_NEGOTIATE;
528 else if (!strcmp(param->name, DEFAULTTIME2RETAIN))
529 param->state &= ~PSTATE_NEGOTIATE;
530 else if (!strcmp(param->name, IFMARKER))
531 param->state &= ~PSTATE_NEGOTIATE;
532 else if (!strcmp(param->name, OFMARKER))
533 param->state &= ~PSTATE_NEGOTIATE;
534 else if (!strcmp(param->name, IFMARKINT))
535 param->state &= ~PSTATE_NEGOTIATE;
536 else if (!strcmp(param->name, OFMARKINT))
537 param->state &= ~PSTATE_NEGOTIATE;
538 }
539
540 return 0;
541}
542
543int iscsi_copy_param_list(
544 struct iscsi_param_list **dst_param_list,
545 struct iscsi_param_list *src_param_list,
546 int leading)
547{
9be08c58
JJ		 548 struct iscsi_param *param = NULL;
549 struct iscsi_param *new_param = NULL;
e48354ce
NB		 550 struct iscsi_param_list *param_list = NULL;
551
552 param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
553 if (!param_list) {
9be08c58 554 pr_err("Unable to allocate memory for struct iscsi_param_list.\n");
e48354ce
NB		 555 goto err_out;
556 }
557 INIT_LIST_HEAD(&param_list->param_list);
558 INIT_LIST_HEAD(&param_list->extra_response_list);
559
560 list_for_each_entry(param, &src_param_list->param_list, p_list) {
561 if (!leading && (param->scope & SCOPE_SESSION_WIDE)) {
562 if ((strcmp(param->name, "TargetName") != 0) &&
563 (strcmp(param->name, "InitiatorName") != 0) &&
564 (strcmp(param->name, "TargetPortalGroupTag") != 0))
565 continue;
566 }
567
568 new_param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL);
569 if (!new_param) {
9be08c58
JJ		 570 pr_err("Unable to allocate memory for struct iscsi_param.\n");
571 goto err_out;
572 }
573
574 new_param->name = kstrdup(param->name, GFP_KERNEL);
575 new_param->value = kstrdup(param->value, GFP_KERNEL);
576 if (!new_param->value || !new_param->name) {
577 kfree(new_param->value);
578 kfree(new_param->name);
579 kfree(new_param);
580 pr_err("Unable to allocate memory for parameter name/value.\n");
e48354ce
NB		 581 goto err_out;
582 }
583
584 new_param->set_param = param->set_param;
585 new_param->phase = param->phase;
586 new_param->scope = param->scope;
587 new_param->sender = param->sender;
588 new_param->type = param->type;
589 new_param->use = param->use;
590 new_param->type_range = param->type_range;
591
e48354ce
NB		 592 list_add_tail(&new_param->p_list, &param_list->param_list);
593 }
594
9be08c58 595 if (!list_empty(&param_list->param_list)) {
e48354ce 596 *dst_param_list = param_list;
9be08c58 597 } else {
e48354ce
NB		 598 pr_err("No parameters allocated.\n");
599 goto err_out;
600 }
601
602 return 0;
603
604err_out:
605 iscsi_release_param_list(param_list);
606 return -1;
607}
608
609static void iscsi_release_extra_responses(struct iscsi_param_list *param_list)
610{
611 struct iscsi_extra_response *er, *er_tmp;
612
613 list_for_each_entry_safe(er, er_tmp, &param_list->extra_response_list,
614 er_list) {
615 list_del(&er->er_list);
616 kfree(er);
617 }
618}
619
620void iscsi_release_param_list(struct iscsi_param_list *param_list)
621{
622 struct iscsi_param *param, *param_tmp;
623
624 list_for_each_entry_safe(param, param_tmp, &param_list->param_list,
625 p_list) {
626 list_del(&param->p_list);
627
628 kfree(param->name);
629 param->name = NULL;
630 kfree(param->value);
631 param->value = NULL;
632 kfree(param);
633 param = NULL;
634 }
635
636 iscsi_release_extra_responses(param_list);
637
638 kfree(param_list);
639}
640
641struct iscsi_param *iscsi_find_param_from_key(
642 char *key,
643 struct iscsi_param_list *param_list)
644{
645 struct iscsi_param *param;
646
647 if (!key || !param_list) {
648 pr_err("Key or parameter list pointer is NULL.\n");
649 return NULL;
650 }
651
652 list_for_each_entry(param, &param_list->param_list, p_list) {
653 if (!strcmp(key, param->name))
654 return param;
655 }
656
657 pr_err("Unable to locate key \"%s\".\n", key);
658 return NULL;
659}
660
661int iscsi_extract_key_value(char *textbuf, char **key, char **value)
662{
663 *value = strchr(textbuf, '=');
664 if (!*value) {
665 pr_err("Unable to locate \"=\" seperator for key,"
666 " ignoring request.\n");
667 return -1;
668 }
669
670 *key = textbuf;
671 **value = '\0';
672 *value = *value + 1;
673
674 return 0;
675}
676
677int iscsi_update_param_value(struct iscsi_param *param, char *value)
678{
679 kfree(param->value);
680
681 param->value = kzalloc(strlen(value) + 1, GFP_KERNEL);
682 if (!param->value) {
683 pr_err("Unable to allocate memory for value.\n");
684 return -1;
685 }
686
687 memcpy(param->value, value, strlen(value));
688 param->value[strlen(value)] = '\0';
689
690 pr_debug("iSCSI Parameter updated to %s=%s\n",
691 param->name, param->value);
692 return 0;
693}
694
695static int iscsi_add_notunderstood_response(
696 char *key,
697 char *value,
698 struct iscsi_param_list *param_list)
699{
700 struct iscsi_extra_response *extra_response;
701
702 if (strlen(value) > VALUE_MAXLEN) {
703 pr_err("Value for notunderstood key \"%s\" exceeds %d,"
704 " protocol error.\n", key, VALUE_MAXLEN);
705 return -1;
706 }
707
708 extra_response = kzalloc(sizeof(struct iscsi_extra_response), GFP_KERNEL);
709 if (!extra_response) {
710 pr_err("Unable to allocate memory for"
711 " struct iscsi_extra_response.\n");
712 return -1;
713 }
714 INIT_LIST_HEAD(&extra_response->er_list);
715
716 strncpy(extra_response->key, key, strlen(key) + 1);
717 strncpy(extra_response->value, NOTUNDERSTOOD,
718 strlen(NOTUNDERSTOOD) + 1);
719
720 list_add_tail(&extra_response->er_list,
721 &param_list->extra_response_list);
722 return 0;
723}
724
725static int iscsi_check_for_auth_key(char *key)
726{
727 /*
728 * RFC 1994
729 */
730 if (!strcmp(key, "CHAP_A") || !strcmp(key, "CHAP_I") ||
731 !strcmp(key, "CHAP_C") || !strcmp(key, "CHAP_N") ||
732 !strcmp(key, "CHAP_R"))
733 return 1;
734
735 /*
736 * RFC 2945
737 */
738 if (!strcmp(key, "SRP_U") || !strcmp(key, "SRP_N") ||
739 !strcmp(key, "SRP_g") || !strcmp(key, "SRP_s") ||
740 !strcmp(key, "SRP_A") || !strcmp(key, "SRP_B") ||
741 !strcmp(key, "SRP_M") || !strcmp(key, "SRP_HM"))
742 return 1;
743
744 return 0;
745}
746
747static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
748{
749 if (IS_TYPE_BOOL_AND(param)) {
750 if (!strcmp(param->value, NO))
751 SET_PSTATE_REPLY_OPTIONAL(param);
752 } else if (IS_TYPE_BOOL_OR(param)) {
753 if (!strcmp(param->value, YES))
754 SET_PSTATE_REPLY_OPTIONAL(param);
755 /*
756 * Required for gPXE iSCSI boot client
757 */
758 if (!strcmp(param->name, IMMEDIATEDATA))
759 SET_PSTATE_REPLY_OPTIONAL(param);
760 } else if (IS_TYPE_NUMBER(param)) {
761 if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
762 SET_PSTATE_REPLY_OPTIONAL(param);
763 /*
764 * The GlobalSAN iSCSI Initiator for MacOSX does
765 * not respond to MaxBurstLength, FirstBurstLength,
766 * DefaultTime2Wait or DefaultTime2Retain parameter keys.
767 * So, we set them to 'reply optional' here, and assume the
768 * the defaults from iscsi_parameters.h if the initiator
769 * is not RFC compliant and the keys are not negotiated.
770 */
771 if (!strcmp(param->name, MAXBURSTLENGTH))
772 SET_PSTATE_REPLY_OPTIONAL(param);
773 if (!strcmp(param->name, FIRSTBURSTLENGTH))
774 SET_PSTATE_REPLY_OPTIONAL(param);
775 if (!strcmp(param->name, DEFAULTTIME2WAIT))
776 SET_PSTATE_REPLY_OPTIONAL(param);
777 if (!strcmp(param->name, DEFAULTTIME2RETAIN))
778 SET_PSTATE_REPLY_OPTIONAL(param);
779 /*
780 * Required for gPXE iSCSI boot client
781 */
782 if (!strcmp(param->name, MAXCONNECTIONS))
783 SET_PSTATE_REPLY_OPTIONAL(param);
784 } else if (IS_PHASE_DECLARATIVE(param))
785 SET_PSTATE_REPLY_OPTIONAL(param);
786}
787
788static int iscsi_check_boolean_value(struct iscsi_param *param, char *value)
789{
790 if (strcmp(value, YES) && strcmp(value, NO)) {
791 pr_err("Illegal value for \"%s\", must be either"
792 " \"%s\" or \"%s\".\n", param->name, YES, NO);
793 return -1;
794 }
795
796 return 0;
797}
798
799static int iscsi_check_numerical_value(struct iscsi_param *param, char *value_ptr)
800{
801 char *tmpptr;
802 int value = 0;
803
804 value = simple_strtoul(value_ptr, &tmpptr, 0);
805
806/* #warning FIXME: Fix this */
807#if 0
808 if (strspn(endptr, WHITE_SPACE) != strlen(endptr)) {
809 pr_err("Illegal value \"%s\" for \"%s\".\n",
810 value, param->name);
811 return -1;
812 }
813#endif
814 if (IS_TYPERANGE_0_TO_2(param)) {
815 if ((value < 0) || (value > 2)) {
816 pr_err("Illegal value for \"%s\", must be"
817 " between 0 and 2.\n", param->name);
818 return -1;
819 }
820 return 0;
821 }
822 if (IS_TYPERANGE_0_TO_3600(param)) {
823 if ((value < 0) || (value > 3600)) {
824 pr_err("Illegal value for \"%s\", must be"
825 " between 0 and 3600.\n", param->name);
826 return -1;
827 }
828 return 0;
829 }
830 if (IS_TYPERANGE_0_TO_32767(param)) {
831 if ((value < 0) || (value > 32767)) {
832 pr_err("Illegal value for \"%s\", must be"
833 " between 0 and 32767.\n", param->name);
834 return -1;
835 }
836 return 0;
837 }
838 if (IS_TYPERANGE_0_TO_65535(param)) {
839 if ((value < 0) || (value > 65535)) {
840 pr_err("Illegal value for \"%s\", must be"
841 " between 0 and 65535.\n", param->name);
842 return -1;
843 }
844 return 0;
845 }
846 if (IS_TYPERANGE_1_TO_65535(param)) {
847 if ((value < 1) || (value > 65535)) {
848 pr_err("Illegal value for \"%s\", must be"
849 " between 1 and 65535.\n", param->name);
850 return -1;
851 }
852 return 0;
853 }
854 if (IS_TYPERANGE_2_TO_3600(param)) {
855 if ((value < 2) || (value > 3600)) {
856 pr_err("Illegal value for \"%s\", must be"
857 " between 2 and 3600.\n", param->name);
858 return -1;
859 }
860 return 0;
861 }
862 if (IS_TYPERANGE_512_TO_16777215(param)) {
863 if ((value < 512) || (value > 16777215)) {
864 pr_err("Illegal value for \"%s\", must be"
865 " between 512 and 16777215.\n", param->name);
866 return -1;
867 }
868 return 0;
869 }
870
871 return 0;
872}
873
874static int iscsi_check_numerical_range_value(struct iscsi_param *param, char *value)
875{
876 char *left_val_ptr = NULL, *right_val_ptr = NULL;
a227fb3a
JE		 877 char *tilde_ptr = NULL;
878 u32 left_val, right_val, local_left_val;
e48354ce
NB		 879
880 if (strcmp(param->name, IFMARKINT) &&
881 strcmp(param->name, OFMARKINT)) {
882 pr_err("Only parameters \"%s\" or \"%s\" may contain a"
883 " numerical range value.\n", IFMARKINT, OFMARKINT);
884 return -1;
885 }
886
887 if (IS_PSTATE_PROPOSER(param))
888 return 0;
889
890 tilde_ptr = strchr(value, '~');
891 if (!tilde_ptr) {
892 pr_err("Unable to locate numerical range indicator"
893 " \"~\" for \"%s\".\n", param->name);
894 return -1;
895 }
896 *tilde_ptr = '\0';
897
898 left_val_ptr = value;
899 right_val_ptr = value + strlen(left_val_ptr) + 1;
900
901 if (iscsi_check_numerical_value(param, left_val_ptr) < 0)
902 return -1;
903 if (iscsi_check_numerical_value(param, right_val_ptr) < 0)
904 return -1;
905
a227fb3a
JE		 906 left_val = simple_strtoul(left_val_ptr, NULL, 0);
907 right_val = simple_strtoul(right_val_ptr, NULL, 0);
e48354ce
NB		 908 *tilde_ptr = '~';
909
910 if (right_val < left_val) {
911 pr_err("Numerical range for parameter \"%s\" contains"
912 " a right value which is less than the left.\n",
913 param->name);
914 return -1;
915 }
916
917 /*
918 * For now, enforce reasonable defaults for [I,O]FMarkInt.
919 */
920 tilde_ptr = strchr(param->value, '~');
921 if (!tilde_ptr) {
922 pr_err("Unable to locate numerical range indicator"
923 " \"~\" for \"%s\".\n", param->name);
924 return -1;
925 }
926 *tilde_ptr = '\0';
927
928 left_val_ptr = param->value;
929 right_val_ptr = param->value + strlen(left_val_ptr) + 1;
930
a227fb3a 931 local_left_val = simple_strtoul(left_val_ptr, NULL, 0);
e48354ce
NB		 932 *tilde_ptr = '~';
933
934 if (param->set_param) {
935 if ((left_val < local_left_val) ||
936 (right_val < local_left_val)) {
937 pr_err("Passed value range \"%u~%u\" is below"
938 " minimum left value \"%u\" for key \"%s\","
939 " rejecting.\n", left_val, right_val,
940 local_left_val, param->name);
941 return -1;
942 }
943 } else {
944 if ((left_val < local_left_val) &&
945 (right_val < local_left_val)) {
946 pr_err("Received value range \"%u~%u\" is"
947 " below minimum left value \"%u\" for key"
948 " \"%s\", rejecting.\n", left_val, right_val,
949 local_left_val, param->name);
950 SET_PSTATE_REJECT(param);
951 if (iscsi_update_param_value(param, REJECT) < 0)
952 return -1;
953 }
954 }
955
956 return 0;
957}
958
959static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value)
960{
961 if (IS_PSTATE_PROPOSER(param))
962 return 0;
963
964 if (IS_TYPERANGE_AUTH_PARAM(param)) {
965 if (strcmp(value, KRB5) && strcmp(value, SPKM1) &&
966 strcmp(value, SPKM2) && strcmp(value, SRP) &&
967 strcmp(value, CHAP) && strcmp(value, NONE)) {
968 pr_err("Illegal value for \"%s\", must be"
969 " \"%s\", \"%s\", \"%s\", \"%s\", \"%s\""
970 " or \"%s\".\n", param->name, KRB5,
971 SPKM1, SPKM2, SRP, CHAP, NONE);
972 return -1;
973 }
974 }
975 if (IS_TYPERANGE_DIGEST_PARAM(param)) {
976 if (strcmp(value, CRC32C) && strcmp(value, NONE)) {
977 pr_err("Illegal value for \"%s\", must be"
978 " \"%s\" or \"%s\".\n", param->name,
979 CRC32C, NONE);
980 return -1;
981 }
982 }
983 if (IS_TYPERANGE_SESSIONTYPE(param)) {
984 if (strcmp(value, DISCOVERY) && strcmp(value, NORMAL)) {
985 pr_err("Illegal value for \"%s\", must be"
986 " \"%s\" or \"%s\".\n", param->name,
987 DISCOVERY, NORMAL);
988 return -1;
989 }
990 }
991
992 return 0;
993}
994
995/*
996 * This function is used to pick a value range number, currently just
997 * returns the lesser of both right values.
998 */
999static char *iscsi_get_value_from_number_range(
1000 struct iscsi_param *param,
1001 char *value)
1002{
1003 char *end_ptr, *tilde_ptr1 = NULL, *tilde_ptr2 = NULL;
1004 u32 acceptor_right_value, proposer_right_value;
1005
1006 tilde_ptr1 = strchr(value, '~');
1007 if (!tilde_ptr1)
1008 return NULL;
1009 *tilde_ptr1++ = '\0';
1010 proposer_right_value = simple_strtoul(tilde_ptr1, &end_ptr, 0);
1011
1012 tilde_ptr2 = strchr(param->value, '~');
1013 if (!tilde_ptr2)
1014 return NULL;
1015 *tilde_ptr2++ = '\0';
1016 acceptor_right_value = simple_strtoul(tilde_ptr2, &end_ptr, 0);
1017
1018 return (acceptor_right_value >= proposer_right_value) ?
1019 tilde_ptr1 : tilde_ptr2;
1020}
1021
1022static char *iscsi_check_valuelist_for_support(
1023 struct iscsi_param *param,
1024 char *value)
1025{
1026 char *tmp1 = NULL, *tmp2 = NULL;
1027 char *acceptor_values = NULL, *proposer_values = NULL;
1028
1029 acceptor_values = param->value;
1030 proposer_values = value;
1031
1032 do {
1033 if (!proposer_values)
1034 return NULL;
1035 tmp1 = strchr(proposer_values, ',');
1036 if (tmp1)
1037 *tmp1 = '\0';
1038 acceptor_values = param->value;
1039 do {
1040 if (!acceptor_values) {
1041 if (tmp1)
1042 *tmp1 = ',';
1043 return NULL;
1044 }
1045 tmp2 = strchr(acceptor_values, ',');
1046 if (tmp2)
1047 *tmp2 = '\0';
1048 if (!acceptor_values || !proposer_values) {
1049 if (tmp1)
1050 *tmp1 = ',';
1051 if (tmp2)
1052 *tmp2 = ',';
1053 return NULL;
1054 }
1055 if (!strcmp(acceptor_values, proposer_values)) {
1056 if (tmp2)
1057 *tmp2 = ',';
1058 goto out;
1059 }
1060 if (tmp2)
1061 *tmp2++ = ',';
1062
1063 acceptor_values = tmp2;
1064 if (!acceptor_values)
1065 break;
1066 } while (acceptor_values);
1067 if (tmp1)
1068 *tmp1++ = ',';
1069 proposer_values = tmp1;
1070 } while (proposer_values);
1071
1072out:
1073 return proposer_values;
1074}
1075
1076static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value)
1077{
1078 u8 acceptor_boolean_value = 0, proposer_boolean_value = 0;
1079 char *negoitated_value = NULL;
1080
1081 if (IS_PSTATE_ACCEPTOR(param)) {
1082 pr_err("Received key \"%s\" twice, protocol error.\n",
1083 param->name);
1084 return -1;
1085 }
1086
1087 if (IS_PSTATE_REJECT(param))
1088 return 0;
1089
1090 if (IS_TYPE_BOOL_AND(param)) {
1091 if (!strcmp(value, YES))
1092 proposer_boolean_value = 1;
1093 if (!strcmp(param->value, YES))
1094 acceptor_boolean_value = 1;
1095 if (acceptor_boolean_value && proposer_boolean_value)
1096 do {} while (0);
1097 else {
1098 if (iscsi_update_param_value(param, NO) < 0)
1099 return -1;
1100 if (!proposer_boolean_value)
1101 SET_PSTATE_REPLY_OPTIONAL(param);
1102 }
1103 } else if (IS_TYPE_BOOL_OR(param)) {
1104 if (!strcmp(value, YES))
1105 proposer_boolean_value = 1;
1106 if (!strcmp(param->value, YES))
1107 acceptor_boolean_value = 1;
1108 if (acceptor_boolean_value || proposer_boolean_value) {
1109 if (iscsi_update_param_value(param, YES) < 0)
1110 return -1;
1111 if (proposer_boolean_value)
1112 SET_PSTATE_REPLY_OPTIONAL(param);
1113 }
1114 } else if (IS_TYPE_NUMBER(param)) {
1115 char *tmpptr, buf[10];
1116 u32 acceptor_value = simple_strtoul(param->value, &tmpptr, 0);
1117 u32 proposer_value = simple_strtoul(value, &tmpptr, 0);
1118
1119 memset(buf, 0, 10);
1120
1121 if (!strcmp(param->name, MAXCONNECTIONS) ||
1122 !strcmp(param->name, MAXBURSTLENGTH) ||
1123 !strcmp(param->name, FIRSTBURSTLENGTH) ||
1124 !strcmp(param->name, MAXOUTSTANDINGR2T) ||
1125 !strcmp(param->name, DEFAULTTIME2RETAIN) ||
1126 !strcmp(param->name, ERRORRECOVERYLEVEL)) {
1127 if (proposer_value > acceptor_value) {
1128 sprintf(buf, "%u", acceptor_value);
1129 if (iscsi_update_param_value(param,
1130 &buf[0]) < 0)
1131 return -1;
1132 } else {
1133 if (iscsi_update_param_value(param, value) < 0)
1134 return -1;
1135 }
1136 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
1137 if (acceptor_value > proposer_value) {
1138 sprintf(buf, "%u", acceptor_value);
1139 if (iscsi_update_param_value(param,
1140 &buf[0]) < 0)
1141 return -1;
1142 } else {
1143 if (iscsi_update_param_value(param, value) < 0)
1144 return -1;
1145 }
1146 } else {
1147 if (iscsi_update_param_value(param, value) < 0)
1148 return -1;
1149 }
1150
1151 if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
1152 SET_PSTATE_REPLY_OPTIONAL(param);
1153 } else if (IS_TYPE_NUMBER_RANGE(param)) {
1154 negoitated_value = iscsi_get_value_from_number_range(
1155 param, value);
1156 if (!negoitated_value)
1157 return -1;
1158 if (iscsi_update_param_value(param, negoitated_value) < 0)
1159 return -1;
1160 } else if (IS_TYPE_VALUE_LIST(param)) {
1161 negoitated_value = iscsi_check_valuelist_for_support(
1162 param, value);
1163 if (!negoitated_value) {
1164 pr_err("Proposer's value list \"%s\" contains"
1165 " no valid values from Acceptor's value list"
1166 " \"%s\".\n", value, param->value);
1167 return -1;
1168 }
1169 if (iscsi_update_param_value(param, negoitated_value) < 0)
1170 return -1;
1171 } else if (IS_PHASE_DECLARATIVE(param)) {
1172 if (iscsi_update_param_value(param, value) < 0)
1173 return -1;
1174 SET_PSTATE_REPLY_OPTIONAL(param);
1175 }
1176
1177 return 0;
1178}
1179
1180static int iscsi_check_proposer_state(struct iscsi_param *param, char *value)
1181{
1182 if (IS_PSTATE_RESPONSE_GOT(param)) {
1183 pr_err("Received key \"%s\" twice, protocol error.\n",
1184 param->name);
1185 return -1;
1186 }
1187
1188 if (IS_TYPE_NUMBER_RANGE(param)) {
1189 u32 left_val = 0, right_val = 0, recieved_value = 0;
1190 char *left_val_ptr = NULL, *right_val_ptr = NULL;
a227fb3a 1191 char *tilde_ptr = NULL;
e48354ce
NB		 1192
1193 if (!strcmp(value, IRRELEVANT) || !strcmp(value, REJECT)) {
1194 if (iscsi_update_param_value(param, value) < 0)
1195 return -1;
1196 return 0;
1197 }
1198
1199 tilde_ptr = strchr(value, '~');
1200 if (tilde_ptr) {
1201 pr_err("Illegal \"~\" in response for \"%s\".\n",
1202 param->name);
1203 return -1;
1204 }
1205 tilde_ptr = strchr(param->value, '~');
1206 if (!tilde_ptr) {
1207 pr_err("Unable to locate numerical range"
1208 " indicator \"~\" for \"%s\".\n", param->name);
1209 return -1;
1210 }
1211 *tilde_ptr = '\0';
1212
1213 left_val_ptr = param->value;
1214 right_val_ptr = param->value + strlen(left_val_ptr) + 1;
a227fb3a
JE		 1215 left_val = simple_strtoul(left_val_ptr, NULL, 0);
1216 right_val = simple_strtoul(right_val_ptr, NULL, 0);
1217 recieved_value = simple_strtoul(value, NULL, 0);
e48354ce
NB		 1218
1219 *tilde_ptr = '~';
1220
1221 if ((recieved_value < left_val) ||
1222 (recieved_value > right_val)) {
1223 pr_err("Illegal response \"%s=%u\", value must"
1224 " be between %u and %u.\n", param->name,
1225 recieved_value, left_val, right_val);
1226 return -1;
1227 }
1228 } else if (IS_TYPE_VALUE_LIST(param)) {
1229 char *comma_ptr = NULL, *tmp_ptr = NULL;
1230
1231 comma_ptr = strchr(value, ',');
1232 if (comma_ptr) {
1233 pr_err("Illegal \",\" in response for \"%s\".\n",
1234 param->name);
1235 return -1;
1236 }
1237
1238 tmp_ptr = iscsi_check_valuelist_for_support(param, value);
1239 if (!tmp_ptr)
1240 return -1;
1241 }
1242
1243 if (iscsi_update_param_value(param, value) < 0)
1244 return -1;
1245
1246 return 0;
1247}
1248
1249static int iscsi_check_value(struct iscsi_param *param, char *value)
1250{
1251 char *comma_ptr = NULL;
1252
1253 if (!strcmp(value, REJECT)) {
1254 if (!strcmp(param->name, IFMARKINT) ||
1255 !strcmp(param->name, OFMARKINT)) {
1256 /*
1257 * Reject is not fatal for [I,O]FMarkInt, and causes
1258 * [I,O]FMarker to be reset to No. (See iSCSI v20 A.3.2)
1259 */
1260 SET_PSTATE_REJECT(param);
1261 return 0;
1262 }
1263 pr_err("Received %s=%s\n", param->name, value);
1264 return -1;
1265 }
1266 if (!strcmp(value, IRRELEVANT)) {
1267 pr_debug("Received %s=%s\n", param->name, value);
1268 SET_PSTATE_IRRELEVANT(param);
1269 return 0;
1270 }
1271 if (!strcmp(value, NOTUNDERSTOOD)) {
1272 if (!IS_PSTATE_PROPOSER(param)) {
1273 pr_err("Received illegal offer %s=%s\n",
1274 param->name, value);
1275 return -1;
1276 }
1277
1278/* #warning FIXME: Add check for X-ExtensionKey here */
1279 pr_err("Standard iSCSI key \"%s\" cannot be answered"
1280 " with \"%s\", protocol error.\n", param->name, value);
1281 return -1;
1282 }
1283
1284 do {
1285 comma_ptr = NULL;
1286 comma_ptr = strchr(value, ',');
1287
1288 if (comma_ptr && !IS_TYPE_VALUE_LIST(param)) {
1289 pr_err("Detected value seperator \",\", but"
1290 " key \"%s\" does not allow a value list,"
1291 " protocol error.\n", param->name);
1292 return -1;
1293 }
1294 if (comma_ptr)
1295 *comma_ptr = '\0';
1296
1297 if (strlen(value) > VALUE_MAXLEN) {
1298 pr_err("Value for key \"%s\" exceeds %d,"
1299 " protocol error.\n", param->name,
1300 VALUE_MAXLEN);
1301 return -1;
1302 }
1303
1304 if (IS_TYPE_BOOL_AND(param) || IS_TYPE_BOOL_OR(param)) {
1305 if (iscsi_check_boolean_value(param, value) < 0)
1306 return -1;
1307 } else if (IS_TYPE_NUMBER(param)) {
1308 if (iscsi_check_numerical_value(param, value) < 0)
1309 return -1;
1310 } else if (IS_TYPE_NUMBER_RANGE(param)) {
1311 if (iscsi_check_numerical_range_value(param, value) < 0)
1312 return -1;
1313 } else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) {
1314 if (iscsi_check_string_or_list_value(param, value) < 0)
1315 return -1;
1316 } else {
1317 pr_err("Huh? 0x%02x\n", param->type);
1318 return -1;
1319 }
1320
1321 if (comma_ptr)
1322 *comma_ptr++ = ',';
1323
1324 value = comma_ptr;
1325 } while (value);
1326
1327 return 0;
1328}
1329
1330static struct iscsi_param *__iscsi_check_key(
1331 char *key,
1332 int sender,
1333 struct iscsi_param_list *param_list)
1334{
1335 struct iscsi_param *param;
1336
1337 if (strlen(key) > KEY_MAXLEN) {
1338 pr_err("Length of key name \"%s\" exceeds %d.\n",
1339 key, KEY_MAXLEN);
1340 return NULL;
1341 }
1342
1343 param = iscsi_find_param_from_key(key, param_list);
1344 if (!param)
1345 return NULL;
1346
1347 if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
1348 pr_err("Key \"%s\" may not be sent to %s,"
1349 " protocol error.\n", param->name,
1350 (sender & SENDER_RECEIVER) ? "target" : "initiator");
1351 return NULL;
1352 }
1353
1354 if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
1355 pr_err("Key \"%s\" may not be sent to %s,"
1356 " protocol error.\n", param->name,
1357 (sender & SENDER_RECEIVER) ? "initiator" : "target");
1358 return NULL;
1359 }
1360
1361 return param;
1362}
1363
1364static struct iscsi_param *iscsi_check_key(
1365 char *key,
1366 int phase,
1367 int sender,
1368 struct iscsi_param_list *param_list)
1369{
1370 struct iscsi_param *param;
1371 /*
1372 * Key name length must not exceed 63 bytes. (See iSCSI v20 5.1)
1373 */
1374 if (strlen(key) > KEY_MAXLEN) {
1375 pr_err("Length of key name \"%s\" exceeds %d.\n",
1376 key, KEY_MAXLEN);
1377 return NULL;
1378 }
1379
1380 param = iscsi_find_param_from_key(key, param_list);
1381 if (!param)
1382 return NULL;
1383
1384 if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
1385 pr_err("Key \"%s\" may not be sent to %s,"
1386 " protocol error.\n", param->name,
1387 (sender & SENDER_RECEIVER) ? "target" : "initiator");
1388 return NULL;
1389 }
1390 if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
1391 pr_err("Key \"%s\" may not be sent to %s,"
1392 " protocol error.\n", param->name,
1393 (sender & SENDER_RECEIVER) ? "initiator" : "target");
1394 return NULL;
1395 }
1396
1397 if (IS_PSTATE_ACCEPTOR(param)) {
1398 pr_err("Key \"%s\" received twice, protocol error.\n",
1399 key);
1400 return NULL;
1401 }
1402
1403 if (!phase)
1404 return param;
1405
1406 if (!(param->phase & phase)) {
1407 pr_err("Key \"%s\" may not be negotiated during ",
1408 param->name);
1409 switch (phase) {
1410 case PHASE_SECURITY:
1411 pr_debug("Security phase.\n");
1412 break;
1413 case PHASE_OPERATIONAL:
1414 pr_debug("Operational phase.\n");
1415 default:
1416 pr_debug("Unknown phase.\n");
1417 }
1418 return NULL;
1419 }
1420
1421 return param;
1422}
1423
1424static int iscsi_enforce_integrity_rules(
1425 u8 phase,
1426 struct iscsi_param_list *param_list)
1427{
1428 char *tmpptr;
1429 u8 DataSequenceInOrder = 0;
1430 u8 ErrorRecoveryLevel = 0, SessionType = 0;
1431 u8 IFMarker = 0, OFMarker = 0;
2ff017f5 1432 u8 IFMarkInt_Reject = 1, OFMarkInt_Reject = 1;
e48354ce
NB		 1433 u32 FirstBurstLength = 0, MaxBurstLength = 0;
1434 struct iscsi_param *param = NULL;
1435
1436 list_for_each_entry(param, &param_list->param_list, p_list) {
1437 if (!(param->phase & phase))
1438 continue;
1439 if (!strcmp(param->name, SESSIONTYPE))
1440 if (!strcmp(param->value, NORMAL))
1441 SessionType = 1;
1442 if (!strcmp(param->name, ERRORRECOVERYLEVEL))
1443 ErrorRecoveryLevel = simple_strtoul(param->value,
1444 &tmpptr, 0);
1445 if (!strcmp(param->name, DATASEQUENCEINORDER))
1446 if (!strcmp(param->value, YES))
1447 DataSequenceInOrder = 1;
1448 if (!strcmp(param->name, MAXBURSTLENGTH))
1449 MaxBurstLength = simple_strtoul(param->value,
1450 &tmpptr, 0);
1451 if (!strcmp(param->name, IFMARKER))
1452 if (!strcmp(param->value, YES))
1453 IFMarker = 1;
1454 if (!strcmp(param->name, OFMARKER))
1455 if (!strcmp(param->value, YES))
1456 OFMarker = 1;
1457 if (!strcmp(param->name, IFMARKINT))
1458 if (!strcmp(param->value, REJECT))
1459 IFMarkInt_Reject = 1;
1460 if (!strcmp(param->name, OFMARKINT))
1461 if (!strcmp(param->value, REJECT))
1462 OFMarkInt_Reject = 1;
1463 }
1464
1465 list_for_each_entry(param, &param_list->param_list, p_list) {
1466 if (!(param->phase & phase))
1467 continue;
1468 if (!SessionType && (!IS_PSTATE_ACCEPTOR(param) &&
1469 (strcmp(param->name, IFMARKER) &&
1470 strcmp(param->name, OFMARKER) &&
1471 strcmp(param->name, IFMARKINT) &&
1472 strcmp(param->name, OFMARKINT))))
1473 continue;
1474 if (!strcmp(param->name, MAXOUTSTANDINGR2T) &&
1475 DataSequenceInOrder && (ErrorRecoveryLevel > 0)) {
1476 if (strcmp(param->value, "1")) {
1477 if (iscsi_update_param_value(param, "1") < 0)
1478 return -1;
1479 pr_debug("Reset \"%s\" to \"%s\".\n",
1480 param->name, param->value);
1481 }
1482 }
1483 if (!strcmp(param->name, MAXCONNECTIONS) && !SessionType) {
1484 if (strcmp(param->value, "1")) {
1485 if (iscsi_update_param_value(param, "1") < 0)
1486 return -1;
1487 pr_debug("Reset \"%s\" to \"%s\".\n",
1488 param->name, param->value);
1489 }
1490 }
1491 if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
1492 FirstBurstLength = simple_strtoul(param->value,
1493 &tmpptr, 0);
1494 if (FirstBurstLength > MaxBurstLength) {
1495 char tmpbuf[10];
1496 memset(tmpbuf, 0, 10);
1497 sprintf(tmpbuf, "%u", MaxBurstLength);
1498 if (iscsi_update_param_value(param, tmpbuf))
1499 return -1;
1500 pr_debug("Reset \"%s\" to \"%s\".\n",
1501 param->name, param->value);
1502 }
1503 }
1504 if (!strcmp(param->name, IFMARKER) && IFMarkInt_Reject) {
1505 if (iscsi_update_param_value(param, NO) < 0)
1506 return -1;
1507 IFMarker = 0;
1508 pr_debug("Reset \"%s\" to \"%s\".\n",
1509 param->name, param->value);
1510 }
1511 if (!strcmp(param->name, OFMARKER) && OFMarkInt_Reject) {
1512 if (iscsi_update_param_value(param, NO) < 0)
1513 return -1;
1514 OFMarker = 0;
1515 pr_debug("Reset \"%s\" to \"%s\".\n",
1516 param->name, param->value);
1517 }
1518 if (!strcmp(param->name, IFMARKINT) && !IFMarker) {
1519 if (!strcmp(param->value, REJECT))
1520 continue;
1521 param->state &= ~PSTATE_NEGOTIATE;
1522 if (iscsi_update_param_value(param, IRRELEVANT) < 0)
1523 return -1;
1524 pr_debug("Reset \"%s\" to \"%s\".\n",
1525 param->name, param->value);
1526 }
1527 if (!strcmp(param->name, OFMARKINT) && !OFMarker) {
1528 if (!strcmp(param->value, REJECT))
1529 continue;
1530 param->state &= ~PSTATE_NEGOTIATE;
1531 if (iscsi_update_param_value(param, IRRELEVANT) < 0)
1532 return -1;
1533 pr_debug("Reset \"%s\" to \"%s\".\n",
1534 param->name, param->value);
1535 }
1536 }
1537
1538 return 0;
1539}
1540
1541int iscsi_decode_text_input(
1542 u8 phase,
1543 u8 sender,
1544 char *textbuf,
1545 u32 length,
1546 struct iscsi_param_list *param_list)
1547{
1548 char *tmpbuf, *start = NULL, *end = NULL;
1549
1550 tmpbuf = kzalloc(length + 1, GFP_KERNEL);
1551 if (!tmpbuf) {
1552 pr_err("Unable to allocate memory for tmpbuf.\n");
1553 return -1;
1554 }
1555
1556 memcpy(tmpbuf, textbuf, length);
1557 tmpbuf[length] = '\0';
1558 start = tmpbuf;
1559 end = (start + length);
1560
1561 while (start < end) {
1562 char *key, *value;
1563 struct iscsi_param *param;
1564
1565 if (iscsi_extract_key_value(start, &key, &value) < 0) {
1566 kfree(tmpbuf);
1567 return -1;
1568 }
1569
1570 pr_debug("Got key: %s=%s\n", key, value);
1571
1572 if (phase & PHASE_SECURITY) {
1573 if (iscsi_check_for_auth_key(key) > 0) {
1574 char *tmpptr = key + strlen(key);
1575 *tmpptr = '=';
1576 kfree(tmpbuf);
1577 return 1;
1578 }
1579 }
1580
1581 param = iscsi_check_key(key, phase, sender, param_list);
1582 if (!param) {
1583 if (iscsi_add_notunderstood_response(key,
1584 value, param_list) < 0) {
1585 kfree(tmpbuf);
1586 return -1;
1587 }
1588 start += strlen(key) + strlen(value) + 2;
1589 continue;
1590 }
1591 if (iscsi_check_value(param, value) < 0) {
1592 kfree(tmpbuf);
1593 return -1;
1594 }
1595
1596 start += strlen(key) + strlen(value) + 2;
1597
1598 if (IS_PSTATE_PROPOSER(param)) {
1599 if (iscsi_check_proposer_state(param, value) < 0) {
1600 kfree(tmpbuf);
1601 return -1;
1602 }
1603 SET_PSTATE_RESPONSE_GOT(param);
1604 } else {
1605 if (iscsi_check_acceptor_state(param, value) < 0) {
1606 kfree(tmpbuf);
1607 return -1;
1608 }
1609 SET_PSTATE_ACCEPTOR(param);
1610 }
1611 }
1612
1613 kfree(tmpbuf);
1614 return 0;
1615}
1616
1617int iscsi_encode_text_output(
1618 u8 phase,
1619 u8 sender,
1620 char *textbuf,
1621 u32 *length,
1622 struct iscsi_param_list *param_list)
1623{
1624 char *output_buf = NULL;
1625 struct iscsi_extra_response *er;
1626 struct iscsi_param *param;
1627
1628 output_buf = textbuf + *length;
1629
1630 if (iscsi_enforce_integrity_rules(phase, param_list) < 0)
1631 return -1;
1632
1633 list_for_each_entry(param, &param_list->param_list, p_list) {
1634 if (!(param->sender & sender))
1635 continue;
1636 if (IS_PSTATE_ACCEPTOR(param) &&
1637 !IS_PSTATE_RESPONSE_SENT(param) &&
1638 !IS_PSTATE_REPLY_OPTIONAL(param) &&
1639 (param->phase & phase)) {
1640 *length += sprintf(output_buf, "%s=%s",
1641 param->name, param->value);
1642 *length += 1;
1643 output_buf = textbuf + *length;
1644 SET_PSTATE_RESPONSE_SENT(param);
1645 pr_debug("Sending key: %s=%s\n",
1646 param->name, param->value);
1647 continue;
1648 }
1649 if (IS_PSTATE_NEGOTIATE(param) &&
1650 !IS_PSTATE_ACCEPTOR(param) &&
1651 !IS_PSTATE_PROPOSER(param) &&
1652 (param->phase & phase)) {
1653 *length += sprintf(output_buf, "%s=%s",
1654 param->name, param->value);
1655 *length += 1;
1656 output_buf = textbuf + *length;
1657 SET_PSTATE_PROPOSER(param);
1658 iscsi_check_proposer_for_optional_reply(param);
1659 pr_debug("Sending key: %s=%s\n",
1660 param->name, param->value);
1661 }
1662 }
1663
1664 list_for_each_entry(er, &param_list->extra_response_list, er_list) {
1665 *length += sprintf(output_buf, "%s=%s", er->key, er->value);
1666 *length += 1;
1667 output_buf = textbuf + *length;
1668 pr_debug("Sending key: %s=%s\n", er->key, er->value);
1669 }
1670 iscsi_release_extra_responses(param_list);
1671
1672 return 0;
1673}
1674
1675int iscsi_check_negotiated_keys(struct iscsi_param_list *param_list)
1676{
1677 int ret = 0;
1678 struct iscsi_param *param;
1679
1680 list_for_each_entry(param, &param_list->param_list, p_list) {
1681 if (IS_PSTATE_NEGOTIATE(param) &&
1682 IS_PSTATE_PROPOSER(param) &&
1683 !IS_PSTATE_RESPONSE_GOT(param) &&
1684 !IS_PSTATE_REPLY_OPTIONAL(param) &&
1685 !IS_PHASE_DECLARATIVE(param)) {
1686 pr_err("No response for proposed key \"%s\".\n",
1687 param->name);
1688 ret = -1;
1689 }
1690 }
1691
1692 return ret;
1693}
1694
1695int iscsi_change_param_value(
1696 char *keyvalue,
1697 struct iscsi_param_list *param_list,
1698 int check_key)
1699{
1700 char *key = NULL, *value = NULL;
1701 struct iscsi_param *param;
1702 int sender = 0;
1703
1704 if (iscsi_extract_key_value(keyvalue, &key, &value) < 0)
1705 return -1;
1706
1707 if (!check_key) {
1708 param = __iscsi_check_key(keyvalue, sender, param_list);
1709 if (!param)
1710 return -1;
1711 } else {
1712 param = iscsi_check_key(keyvalue, 0, sender, param_list);
1713 if (!param)
1714 return -1;
1715
1716 param->set_param = 1;
1717 if (iscsi_check_value(param, value) < 0) {
1718 param->set_param = 0;
1719 return -1;
1720 }
1721 param->set_param = 0;
1722 }
1723
1724 if (iscsi_update_param_value(param, value) < 0)
1725 return -1;
1726
1727 return 0;
1728}
1729
1730void iscsi_set_connection_parameters(
1731 struct iscsi_conn_ops *ops,
1732 struct iscsi_param_list *param_list)
1733{
1734 char *tmpptr;
1735 struct iscsi_param *param;
1736
1737 pr_debug("---------------------------------------------------"
1738 "---------------\n");
1739 list_for_each_entry(param, &param_list->param_list, p_list) {
1740 if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
1741 continue;
1742 if (!strcmp(param->name, AUTHMETHOD)) {
1743 pr_debug("AuthMethod: %s\n",
1744 param->value);
1745 } else if (!strcmp(param->name, HEADERDIGEST)) {
1746 ops->HeaderDigest = !strcmp(param->value, CRC32C);
1747 pr_debug("HeaderDigest: %s\n",
1748 param->value);
1749 } else if (!strcmp(param->name, DATADIGEST)) {
1750 ops->DataDigest = !strcmp(param->value, CRC32C);
1751 pr_debug("DataDigest: %s\n",
1752 param->value);
1753 } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
1754 ops->MaxRecvDataSegmentLength =
1755 simple_strtoul(param->value, &tmpptr, 0);
1756 pr_debug("MaxRecvDataSegmentLength: %s\n",
1757 param->value);
1758 } else if (!strcmp(param->name, OFMARKER)) {
1759 ops->OFMarker = !strcmp(param->value, YES);
1760 pr_debug("OFMarker: %s\n",
1761 param->value);
1762 } else if (!strcmp(param->name, IFMARKER)) {
1763 ops->IFMarker = !strcmp(param->value, YES);
1764 pr_debug("IFMarker: %s\n",
1765 param->value);
1766 } else if (!strcmp(param->name, OFMARKINT)) {
1767 ops->OFMarkInt =
1768 simple_strtoul(param->value, &tmpptr, 0);
1769 pr_debug("OFMarkInt: %s\n",
1770 param->value);
1771 } else if (!strcmp(param->name, IFMARKINT)) {
1772 ops->IFMarkInt =
1773 simple_strtoul(param->value, &tmpptr, 0);
1774 pr_debug("IFMarkInt: %s\n",
1775 param->value);
1776 }
1777 }
1778 pr_debug("----------------------------------------------------"
1779 "--------------\n");
1780}
1781
1782void iscsi_set_session_parameters(
1783 struct iscsi_sess_ops *ops,
1784 struct iscsi_param_list *param_list,
1785 int leading)
1786{
1787 char *tmpptr;
1788 struct iscsi_param *param;
1789
1790 pr_debug("----------------------------------------------------"
1791 "--------------\n");
1792 list_for_each_entry(param, &param_list->param_list, p_list) {
1793 if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
1794 continue;
1795 if (!strcmp(param->name, INITIATORNAME)) {
1796 if (!param->value)
1797 continue;
1798 if (leading)
1799 snprintf(ops->InitiatorName,
1800 sizeof(ops->InitiatorName),
1801 "%s", param->value);
1802 pr_debug("InitiatorName: %s\n",
1803 param->value);
1804 } else if (!strcmp(param->name, INITIATORALIAS)) {
1805 if (!param->value)
1806 continue;
1807 snprintf(ops->InitiatorAlias,
1808 sizeof(ops->InitiatorAlias),
1809 "%s", param->value);
1810 pr_debug("InitiatorAlias: %s\n",
1811 param->value);
1812 } else if (!strcmp(param->name, TARGETNAME)) {
1813 if (!param->value)
1814 continue;
1815 if (leading)
1816 snprintf(ops->TargetName,
1817 sizeof(ops->TargetName),
1818 "%s", param->value);
1819 pr_debug("TargetName: %s\n",
1820 param->value);
1821 } else if (!strcmp(param->name, TARGETALIAS)) {
1822 if (!param->value)
1823 continue;
1824 snprintf(ops->TargetAlias, sizeof(ops->TargetAlias),
1825 "%s", param->value);
1826 pr_debug("TargetAlias: %s\n",
1827 param->value);
1828 } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
1829 ops->TargetPortalGroupTag =
1830 simple_strtoul(param->value, &tmpptr, 0);
1831 pr_debug("TargetPortalGroupTag: %s\n",
1832 param->value);
1833 } else if (!strcmp(param->name, MAXCONNECTIONS)) {
1834 ops->MaxConnections =
1835 simple_strtoul(param->value, &tmpptr, 0);
1836 pr_debug("MaxConnections: %s\n",
1837 param->value);
1838 } else if (!strcmp(param->name, INITIALR2T)) {
1839 ops->InitialR2T = !strcmp(param->value, YES);
1840 pr_debug("InitialR2T: %s\n",
1841 param->value);
1842 } else if (!strcmp(param->name, IMMEDIATEDATA)) {
1843 ops->ImmediateData = !strcmp(param->value, YES);
1844 pr_debug("ImmediateData: %s\n",
1845 param->value);
1846 } else if (!strcmp(param->name, MAXBURSTLENGTH)) {
1847 ops->MaxBurstLength =
1848 simple_strtoul(param->value, &tmpptr, 0);
1849 pr_debug("MaxBurstLength: %s\n",
1850 param->value);
1851 } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
1852 ops->FirstBurstLength =
1853 simple_strtoul(param->value, &tmpptr, 0);
1854 pr_debug("FirstBurstLength: %s\n",
1855 param->value);
1856 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
1857 ops->DefaultTime2Wait =
1858 simple_strtoul(param->value, &tmpptr, 0);
1859 pr_debug("DefaultTime2Wait: %s\n",
1860 param->value);
1861 } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
1862 ops->DefaultTime2Retain =
1863 simple_strtoul(param->value, &tmpptr, 0);
1864 pr_debug("DefaultTime2Retain: %s\n",
1865 param->value);
1866 } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
1867 ops->MaxOutstandingR2T =
1868 simple_strtoul(param->value, &tmpptr, 0);
1869 pr_debug("MaxOutstandingR2T: %s\n",
1870 param->value);
1871 } else if (!strcmp(param->name, DATAPDUINORDER)) {
1872 ops->DataPDUInOrder = !strcmp(param->value, YES);
1873 pr_debug("DataPDUInOrder: %s\n",
1874 param->value);
1875 } else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
1876 ops->DataSequenceInOrder = !strcmp(param->value, YES);
1877 pr_debug("DataSequenceInOrder: %s\n",
1878 param->value);
1879 } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
1880 ops->ErrorRecoveryLevel =
1881 simple_strtoul(param->value, &tmpptr, 0);
1882 pr_debug("ErrorRecoveryLevel: %s\n",
1883 param->value);
1884 } else if (!strcmp(param->name, SESSIONTYPE)) {
1885 ops->SessionType = !strcmp(param->value, DISCOVERY);
1886 pr_debug("SessionType: %s\n",
1887 param->value);
1888 }
1889 }
1890 pr_debug("----------------------------------------------------"
1891 "--------------\n");
1892
1893}
Linux kernel - Deliverables
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