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Merge tag 'staging-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
[linux/fpc-iii.git] / drivers / target / iscsi / iscsi_target_parameters.c
blobca2be406f1417c93d7d4652b3850630f8954ac0d
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
27 int 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
56 int 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
90 void 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
106 void 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
136 void 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
144 static 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 = kstrdup(name, 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 = kstrdup(value, GFP_KERNEL);
164 if (!param->value) {
165 pr_err("Unable to allocate memory for parameter value.\n");
166 goto out;
167 }
168
169 param->phase = phase;
170 param->scope = scope;
171 param->sender = sender;
172 param->use = use;
173 param->type_range = type_range;
174
175 switch (param->type_range) {
176 case TYPERANGE_BOOL_AND:
177 param->type = TYPE_BOOL_AND;
178 break;
179 case TYPERANGE_BOOL_OR:
180 param->type = TYPE_BOOL_OR;
181 break;
182 case TYPERANGE_0_TO_2:
183 case TYPERANGE_0_TO_3600:
184 case TYPERANGE_0_TO_32767:
185 case TYPERANGE_0_TO_65535:
186 case TYPERANGE_1_TO_65535:
187 case TYPERANGE_2_TO_3600:
188 case TYPERANGE_512_TO_16777215:
189 param->type = TYPE_NUMBER;
190 break;
191 case TYPERANGE_AUTH:
192 case TYPERANGE_DIGEST:
193 param->type = TYPE_VALUE_LIST | TYPE_STRING;
194 break;
195 case TYPERANGE_MARKINT:
196 param->type = TYPE_NUMBER_RANGE;
197 param->type_range |= TYPERANGE_1_TO_65535;
198 break;
199 case TYPERANGE_ISCSINAME:
200 case TYPERANGE_SESSIONTYPE:
201 case TYPERANGE_TARGETADDRESS:
202 case TYPERANGE_UTF8:
203 param->type = TYPE_STRING;
204 break;
205 default:
206 pr_err("Unknown type_range 0x%02x\n",
207 param->type_range);
208 goto out;
209 }
210 list_add_tail(&param->p_list, &param_list->param_list);
211
212 return param;
213 out:
214 if (param) {
215 kfree(param->value);
216 kfree(param->name);
217 kfree(param);
218 }
219
220 return NULL;
221 }
222
223 /* #warning Add extension keys */
224 int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr)
225 {
226 struct iscsi_param *param = NULL;
227 struct iscsi_param_list *pl;
228
229 pl = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
230 if (!pl) {
231 pr_err("Unable to allocate memory for"
232 " struct iscsi_param_list.\n");
233 return -1 ;
234 }
235 INIT_LIST_HEAD(&pl->param_list);
236 INIT_LIST_HEAD(&pl->extra_response_list);
237
238 /*
239 * The format for setting the initial parameter definitions are:
240 *
241 * Parameter name:
242 * Initial value:
243 * Allowable phase:
244 * Scope:
245 * Allowable senders:
246 * Typerange:
247 * Use:
248 */
249 param = iscsi_set_default_param(pl, AUTHMETHOD, INITIAL_AUTHMETHOD,
250 PHASE_SECURITY, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
251 TYPERANGE_AUTH, USE_INITIAL_ONLY);
252 if (!param)
253 goto out;
254
255 param = iscsi_set_default_param(pl, HEADERDIGEST, INITIAL_HEADERDIGEST,
256 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
257 TYPERANGE_DIGEST, USE_INITIAL_ONLY);
258 if (!param)
259 goto out;
260
261 param = iscsi_set_default_param(pl, DATADIGEST, INITIAL_DATADIGEST,
262 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
263 TYPERANGE_DIGEST, USE_INITIAL_ONLY);
264 if (!param)
265 goto out;
266
267 param = iscsi_set_default_param(pl, MAXCONNECTIONS,
268 INITIAL_MAXCONNECTIONS, PHASE_OPERATIONAL,
269 SCOPE_SESSION_WIDE, SENDER_BOTH,
270 TYPERANGE_1_TO_65535, USE_LEADING_ONLY);
271 if (!param)
272 goto out;
273
274 param = iscsi_set_default_param(pl, SENDTARGETS, INITIAL_SENDTARGETS,
275 PHASE_FFP0, SCOPE_SESSION_WIDE, SENDER_INITIATOR,
276 TYPERANGE_UTF8, 0);
277 if (!param)
278 goto out;
279
280 param = iscsi_set_default_param(pl, TARGETNAME, INITIAL_TARGETNAME,
281 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_BOTH,
282 TYPERANGE_ISCSINAME, USE_ALL);
283 if (!param)
284 goto out;
285
286 param = iscsi_set_default_param(pl, INITIATORNAME,
287 INITIAL_INITIATORNAME, PHASE_DECLARATIVE,
288 SCOPE_SESSION_WIDE, SENDER_INITIATOR,
289 TYPERANGE_ISCSINAME, USE_INITIAL_ONLY);
290 if (!param)
291 goto out;
292
293 param = iscsi_set_default_param(pl, TARGETALIAS, INITIAL_TARGETALIAS,
294 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET,
295 TYPERANGE_UTF8, USE_ALL);
296 if (!param)
297 goto out;
298
299 param = iscsi_set_default_param(pl, INITIATORALIAS,
300 INITIAL_INITIATORALIAS, PHASE_DECLARATIVE,
301 SCOPE_SESSION_WIDE, SENDER_INITIATOR, TYPERANGE_UTF8,
302 USE_ALL);
303 if (!param)
304 goto out;
305
306 param = iscsi_set_default_param(pl, TARGETADDRESS,
307 INITIAL_TARGETADDRESS, PHASE_DECLARATIVE,
308 SCOPE_SESSION_WIDE, SENDER_TARGET,
309 TYPERANGE_TARGETADDRESS, USE_ALL);
310 if (!param)
311 goto out;
312
313 param = iscsi_set_default_param(pl, TARGETPORTALGROUPTAG,
314 INITIAL_TARGETPORTALGROUPTAG,
315 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET,
316 TYPERANGE_0_TO_65535, USE_INITIAL_ONLY);
317 if (!param)
318 goto out;
319
320 param = iscsi_set_default_param(pl, INITIALR2T, INITIAL_INITIALR2T,
321 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
322 TYPERANGE_BOOL_OR, USE_LEADING_ONLY);
323 if (!param)
324 goto out;
325
326 param = iscsi_set_default_param(pl, IMMEDIATEDATA,
327 INITIAL_IMMEDIATEDATA, PHASE_OPERATIONAL,
328 SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_AND,
329 USE_LEADING_ONLY);
330 if (!param)
331 goto out;
332
333 param = iscsi_set_default_param(pl, MAXXMITDATASEGMENTLENGTH,
334 INITIAL_MAXXMITDATASEGMENTLENGTH,
335 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
336 TYPERANGE_512_TO_16777215, USE_ALL);
337 if (!param)
338 goto out;
339
340 param = iscsi_set_default_param(pl, MAXRECVDATASEGMENTLENGTH,
341 INITIAL_MAXRECVDATASEGMENTLENGTH,
342 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
343 TYPERANGE_512_TO_16777215, USE_ALL);
344 if (!param)
345 goto out;
346
347 param = iscsi_set_default_param(pl, MAXBURSTLENGTH,
348 INITIAL_MAXBURSTLENGTH, PHASE_OPERATIONAL,
349 SCOPE_SESSION_WIDE, SENDER_BOTH,
350 TYPERANGE_512_TO_16777215, USE_LEADING_ONLY);
351 if (!param)
352 goto out;
353
354 param = iscsi_set_default_param(pl, FIRSTBURSTLENGTH,
355 INITIAL_FIRSTBURSTLENGTH,
356 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
357 TYPERANGE_512_TO_16777215, USE_LEADING_ONLY);
358 if (!param)
359 goto out;
360
361 param = iscsi_set_default_param(pl, DEFAULTTIME2WAIT,
362 INITIAL_DEFAULTTIME2WAIT,
363 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
364 TYPERANGE_0_TO_3600, USE_LEADING_ONLY);
365 if (!param)
366 goto out;
367
368 param = iscsi_set_default_param(pl, DEFAULTTIME2RETAIN,
369 INITIAL_DEFAULTTIME2RETAIN,
370 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
371 TYPERANGE_0_TO_3600, USE_LEADING_ONLY);
372 if (!param)
373 goto out;
374
375 param = iscsi_set_default_param(pl, MAXOUTSTANDINGR2T,
376 INITIAL_MAXOUTSTANDINGR2T,
377 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
378 TYPERANGE_1_TO_65535, USE_LEADING_ONLY);
379 if (!param)
380 goto out;
381
382 param = iscsi_set_default_param(pl, DATAPDUINORDER,
383 INITIAL_DATAPDUINORDER, PHASE_OPERATIONAL,
384 SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_OR,
385 USE_LEADING_ONLY);
386 if (!param)
387 goto out;
388
389 param = iscsi_set_default_param(pl, DATASEQUENCEINORDER,
390 INITIAL_DATASEQUENCEINORDER,
391 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
392 TYPERANGE_BOOL_OR, USE_LEADING_ONLY);
393 if (!param)
394 goto out;
395
396 param = iscsi_set_default_param(pl, ERRORRECOVERYLEVEL,
397 INITIAL_ERRORRECOVERYLEVEL,
398 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
399 TYPERANGE_0_TO_2, USE_LEADING_ONLY);
400 if (!param)
401 goto out;
402
403 param = iscsi_set_default_param(pl, SESSIONTYPE, INITIAL_SESSIONTYPE,
404 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_INITIATOR,
405 TYPERANGE_SESSIONTYPE, USE_LEADING_ONLY);
406 if (!param)
407 goto out;
408
409 param = iscsi_set_default_param(pl, IFMARKER, INITIAL_IFMARKER,
410 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
411 TYPERANGE_BOOL_AND, USE_INITIAL_ONLY);
412 if (!param)
413 goto out;
414
415 param = iscsi_set_default_param(pl, OFMARKER, INITIAL_OFMARKER,
416 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
417 TYPERANGE_BOOL_AND, USE_INITIAL_ONLY);
418 if (!param)
419 goto out;
420
421 param = iscsi_set_default_param(pl, IFMARKINT, INITIAL_IFMARKINT,
422 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
423 TYPERANGE_MARKINT, USE_INITIAL_ONLY);
424 if (!param)
425 goto out;
426
427 param = iscsi_set_default_param(pl, OFMARKINT, INITIAL_OFMARKINT,
428 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
429 TYPERANGE_MARKINT, USE_INITIAL_ONLY);
430 if (!param)
431 goto out;
432
433 *param_list_ptr = pl;
434 return 0;
435 out:
436 iscsi_release_param_list(pl);
437 return -1;
438 }
439
440 int iscsi_set_keys_to_negotiate(
441 int sessiontype,
442 struct iscsi_param_list *param_list)
443 {
444 struct iscsi_param *param;
445
446 list_for_each_entry(param, &param_list->param_list, p_list) {
447 param->state = 0;
448 if (!strcmp(param->name, AUTHMETHOD)) {
449 SET_PSTATE_NEGOTIATE(param);
450 } else if (!strcmp(param->name, HEADERDIGEST)) {
451 SET_PSTATE_NEGOTIATE(param);
452 } else if (!strcmp(param->name, DATADIGEST)) {
453 SET_PSTATE_NEGOTIATE(param);
454 } else if (!strcmp(param->name, MAXCONNECTIONS)) {
455 SET_PSTATE_NEGOTIATE(param);
456 } else if (!strcmp(param->name, TARGETNAME)) {
457 continue;
458 } else if (!strcmp(param->name, INITIATORNAME)) {
459 continue;
460 } else if (!strcmp(param->name, TARGETALIAS)) {
461 if (param->value)
462 SET_PSTATE_NEGOTIATE(param);
463 } else if (!strcmp(param->name, INITIATORALIAS)) {
464 continue;
465 } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
466 SET_PSTATE_NEGOTIATE(param);
467 } else if (!strcmp(param->name, INITIALR2T)) {
468 SET_PSTATE_NEGOTIATE(param);
469 } else if (!strcmp(param->name, IMMEDIATEDATA)) {
470 SET_PSTATE_NEGOTIATE(param);
471 } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
472 SET_PSTATE_NEGOTIATE(param);
473 } else if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
474 continue;
475 } else if (!strcmp(param->name, MAXBURSTLENGTH)) {
476 SET_PSTATE_NEGOTIATE(param);
477 } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
478 SET_PSTATE_NEGOTIATE(param);
479 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
480 SET_PSTATE_NEGOTIATE(param);
481 } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
482 SET_PSTATE_NEGOTIATE(param);
483 } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
484 SET_PSTATE_NEGOTIATE(param);
485 } else if (!strcmp(param->name, DATAPDUINORDER)) {
486 SET_PSTATE_NEGOTIATE(param);
487 } else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
488 SET_PSTATE_NEGOTIATE(param);
489 } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
490 SET_PSTATE_NEGOTIATE(param);
491 } else if (!strcmp(param->name, SESSIONTYPE)) {
492 SET_PSTATE_NEGOTIATE(param);
493 } else if (!strcmp(param->name, IFMARKER)) {
494 SET_PSTATE_NEGOTIATE(param);
495 } else if (!strcmp(param->name, OFMARKER)) {
496 SET_PSTATE_NEGOTIATE(param);
497 } else if (!strcmp(param->name, IFMARKINT)) {
498 SET_PSTATE_NEGOTIATE(param);
499 } else if (!strcmp(param->name, OFMARKINT)) {
500 SET_PSTATE_NEGOTIATE(param);
501 }
502 }
503
504 return 0;
505 }
506
507 int iscsi_set_keys_irrelevant_for_discovery(
508 struct iscsi_param_list *param_list)
509 {
510 struct iscsi_param *param;
511
512 list_for_each_entry(param, &param_list->param_list, p_list) {
513 if (!strcmp(param->name, MAXCONNECTIONS))
514 param->state &= ~PSTATE_NEGOTIATE;
515 else if (!strcmp(param->name, INITIALR2T))
516 param->state &= ~PSTATE_NEGOTIATE;
517 else if (!strcmp(param->name, IMMEDIATEDATA))
518 param->state &= ~PSTATE_NEGOTIATE;
519 else if (!strcmp(param->name, MAXBURSTLENGTH))
520 param->state &= ~PSTATE_NEGOTIATE;
521 else if (!strcmp(param->name, FIRSTBURSTLENGTH))
522 param->state &= ~PSTATE_NEGOTIATE;
523 else if (!strcmp(param->name, MAXOUTSTANDINGR2T))
524 param->state &= ~PSTATE_NEGOTIATE;
525 else if (!strcmp(param->name, DATAPDUINORDER))
526 param->state &= ~PSTATE_NEGOTIATE;
527 else if (!strcmp(param->name, DATASEQUENCEINORDER))
528 param->state &= ~PSTATE_NEGOTIATE;
529 else if (!strcmp(param->name, ERRORRECOVERYLEVEL))
530 param->state &= ~PSTATE_NEGOTIATE;
531 else if (!strcmp(param->name, DEFAULTTIME2WAIT))
532 param->state &= ~PSTATE_NEGOTIATE;
533 else if (!strcmp(param->name, DEFAULTTIME2RETAIN))
534 param->state &= ~PSTATE_NEGOTIATE;
535 else if (!strcmp(param->name, IFMARKER))
536 param->state &= ~PSTATE_NEGOTIATE;
537 else if (!strcmp(param->name, OFMARKER))
538 param->state &= ~PSTATE_NEGOTIATE;
539 else if (!strcmp(param->name, IFMARKINT))
540 param->state &= ~PSTATE_NEGOTIATE;
541 else if (!strcmp(param->name, OFMARKINT))
542 param->state &= ~PSTATE_NEGOTIATE;
543 }
544
545 return 0;
546 }
547
548 int iscsi_copy_param_list(
549 struct iscsi_param_list **dst_param_list,
550 struct iscsi_param_list *src_param_list,
551 int leading)
552 {
553 struct iscsi_param *param = NULL;
554 struct iscsi_param *new_param = NULL;
555 struct iscsi_param_list *param_list = NULL;
556
557 param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
558 if (!param_list) {
559 pr_err("Unable to allocate memory for struct iscsi_param_list.\n");
560 goto err_out;
561 }
562 INIT_LIST_HEAD(&param_list->param_list);
563 INIT_LIST_HEAD(&param_list->extra_response_list);
564
565 list_for_each_entry(param, &src_param_list->param_list, p_list) {
566 if (!leading && (param->scope & SCOPE_SESSION_WIDE)) {
567 if ((strcmp(param->name, "TargetName") != 0) &&
568 (strcmp(param->name, "InitiatorName") != 0) &&
569 (strcmp(param->name, "TargetPortalGroupTag") != 0))
570 continue;
571 }
572
573 new_param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL);
574 if (!new_param) {
575 pr_err("Unable to allocate memory for struct iscsi_param.\n");
576 goto err_out;
577 }
578
579 new_param->name = kstrdup(param->name, GFP_KERNEL);
580 new_param->value = kstrdup(param->value, GFP_KERNEL);
581 if (!new_param->value || !new_param->name) {
582 kfree(new_param->value);
583 kfree(new_param->name);
584 kfree(new_param);
585 pr_err("Unable to allocate memory for parameter name/value.\n");
586 goto err_out;
587 }
588
589 new_param->set_param = param->set_param;
590 new_param->phase = param->phase;
591 new_param->scope = param->scope;
592 new_param->sender = param->sender;
593 new_param->type = param->type;
594 new_param->use = param->use;
595 new_param->type_range = param->type_range;
596
597 list_add_tail(&new_param->p_list, &param_list->param_list);
598 }
599
600 if (!list_empty(&param_list->param_list)) {
601 *dst_param_list = param_list;
602 } else {
603 pr_err("No parameters allocated.\n");
604 goto err_out;
605 }
606
607 return 0;
608
609 err_out:
610 iscsi_release_param_list(param_list);
611 return -1;
612 }
613
614 static void iscsi_release_extra_responses(struct iscsi_param_list *param_list)
615 {
616 struct iscsi_extra_response *er, *er_tmp;
617
618 list_for_each_entry_safe(er, er_tmp, &param_list->extra_response_list,
619 er_list) {
620 list_del(&er->er_list);
621 kfree(er);
622 }
623 }
624
625 void iscsi_release_param_list(struct iscsi_param_list *param_list)
626 {
627 struct iscsi_param *param, *param_tmp;
628
629 list_for_each_entry_safe(param, param_tmp, &param_list->param_list,
630 p_list) {
631 list_del(&param->p_list);
632
633 kfree(param->name);
634 kfree(param->value);
635 kfree(param);
636 }
637
638 iscsi_release_extra_responses(param_list);
639
640 kfree(param_list);
641 }
642
643 struct iscsi_param *iscsi_find_param_from_key(
644 char *key,
645 struct iscsi_param_list *param_list)
646 {
647 struct iscsi_param *param;
648
649 if (!key || !param_list) {
650 pr_err("Key or parameter list pointer is NULL.\n");
651 return NULL;
652 }
653
654 list_for_each_entry(param, &param_list->param_list, p_list) {
655 if (!strcmp(key, param->name))
656 return param;
657 }
658
659 pr_err("Unable to locate key \"%s\".\n", key);
660 return NULL;
661 }
662
663 int iscsi_extract_key_value(char *textbuf, char **key, char **value)
664 {
665 *value = strchr(textbuf, '=');
666 if (!*value) {
667 pr_err("Unable to locate \"=\" separator for key,"
668 " ignoring request.\n");
669 return -1;
670 }
671
672 *key = textbuf;
673 **value = '\0';
674 *value = *value + 1;
675
676 return 0;
677 }
678
679 int iscsi_update_param_value(struct iscsi_param *param, char *value)
680 {
681 kfree(param->value);
682
683 param->value = kstrdup(value, GFP_KERNEL);
684 if (!param->value) {
685 pr_err("Unable to allocate memory for value.\n");
686 return -ENOMEM;
687 }
688
689 pr_debug("iSCSI Parameter updated to %s=%s\n",
690 param->name, param->value);
691 return 0;
692 }
693
694 static int iscsi_add_notunderstood_response(
695 char *key,
696 char *value,
697 struct iscsi_param_list *param_list)
698 {
699 struct iscsi_extra_response *extra_response;
700
701 if (strlen(value) > VALUE_MAXLEN) {
702 pr_err("Value for notunderstood key \"%s\" exceeds %d,"
703 " protocol error.\n", key, VALUE_MAXLEN);
704 return -1;
705 }
706
707 extra_response = kzalloc(sizeof(struct iscsi_extra_response), GFP_KERNEL);
708 if (!extra_response) {
709 pr_err("Unable to allocate memory for"
710 " struct iscsi_extra_response.\n");
711 return -1;
712 }
713 INIT_LIST_HEAD(&extra_response->er_list);
714
715 strncpy(extra_response->key, key, strlen(key) + 1);
716 strncpy(extra_response->value, NOTUNDERSTOOD,
717 strlen(NOTUNDERSTOOD) + 1);
718
719 list_add_tail(&extra_response->er_list,
720 &param_list->extra_response_list);
721 return 0;
722 }
723
724 static int iscsi_check_for_auth_key(char *key)
725 {
726 /*
727 * RFC 1994
728 */
729 if (!strcmp(key, "CHAP_A") || !strcmp(key, "CHAP_I") ||
730 !strcmp(key, "CHAP_C") || !strcmp(key, "CHAP_N") ||
731 !strcmp(key, "CHAP_R"))
732 return 1;
733
734 /*
735 * RFC 2945
736 */
737 if (!strcmp(key, "SRP_U") || !strcmp(key, "SRP_N") ||
738 !strcmp(key, "SRP_g") || !strcmp(key, "SRP_s") ||
739 !strcmp(key, "SRP_A") || !strcmp(key, "SRP_B") ||
740 !strcmp(key, "SRP_M") || !strcmp(key, "SRP_HM"))
741 return 1;
742
743 return 0;
744 }
745
746 static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
747 {
748 if (IS_TYPE_BOOL_AND(param)) {
749 if (!strcmp(param->value, NO))
750 SET_PSTATE_REPLY_OPTIONAL(param);
751 } else if (IS_TYPE_BOOL_OR(param)) {
752 if (!strcmp(param->value, YES))
753 SET_PSTATE_REPLY_OPTIONAL(param);
754 /*
755 * Required for gPXE iSCSI boot client
756 */
757 if (!strcmp(param->name, IMMEDIATEDATA))
758 SET_PSTATE_REPLY_OPTIONAL(param);
759 } else if (IS_TYPE_NUMBER(param)) {
760 if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
761 SET_PSTATE_REPLY_OPTIONAL(param);
762 /*
763 * The GlobalSAN iSCSI Initiator for MacOSX does
764 * not respond to MaxBurstLength, FirstBurstLength,
765 * DefaultTime2Wait or DefaultTime2Retain parameter keys.
766 * So, we set them to 'reply optional' here, and assume the
767 * the defaults from iscsi_parameters.h if the initiator
768 * is not RFC compliant and the keys are not negotiated.
769 */
770 if (!strcmp(param->name, MAXBURSTLENGTH))
771 SET_PSTATE_REPLY_OPTIONAL(param);
772 if (!strcmp(param->name, FIRSTBURSTLENGTH))
773 SET_PSTATE_REPLY_OPTIONAL(param);
774 if (!strcmp(param->name, DEFAULTTIME2WAIT))
775 SET_PSTATE_REPLY_OPTIONAL(param);
776 if (!strcmp(param->name, DEFAULTTIME2RETAIN))
777 SET_PSTATE_REPLY_OPTIONAL(param);
778 /*
779 * Required for gPXE iSCSI boot client
780 */
781 if (!strcmp(param->name, MAXCONNECTIONS))
782 SET_PSTATE_REPLY_OPTIONAL(param);
783 } else if (IS_PHASE_DECLARATIVE(param))
784 SET_PSTATE_REPLY_OPTIONAL(param);
785 }
786
787 static int iscsi_check_boolean_value(struct iscsi_param *param, char *value)
788 {
789 if (strcmp(value, YES) && strcmp(value, NO)) {
790 pr_err("Illegal value for \"%s\", must be either"
791 " \"%s\" or \"%s\".\n", param->name, YES, NO);
792 return -1;
793 }
794
795 return 0;
796 }
797
798 static int iscsi_check_numerical_value(struct iscsi_param *param, char *value_ptr)
799 {
800 char *tmpptr;
801 int value = 0;
802
803 value = simple_strtoul(value_ptr, &tmpptr, 0);
804
805 if (IS_TYPERANGE_0_TO_2(param)) {
806 if ((value < 0) || (value > 2)) {
807 pr_err("Illegal value for \"%s\", must be"
808 " between 0 and 2.\n", param->name);
809 return -1;
810 }
811 return 0;
812 }
813 if (IS_TYPERANGE_0_TO_3600(param)) {
814 if ((value < 0) || (value > 3600)) {
815 pr_err("Illegal value for \"%s\", must be"
816 " between 0 and 3600.\n", param->name);
817 return -1;
818 }
819 return 0;
820 }
821 if (IS_TYPERANGE_0_TO_32767(param)) {
822 if ((value < 0) || (value > 32767)) {
823 pr_err("Illegal value for \"%s\", must be"
824 " between 0 and 32767.\n", param->name);
825 return -1;
826 }
827 return 0;
828 }
829 if (IS_TYPERANGE_0_TO_65535(param)) {
830 if ((value < 0) || (value > 65535)) {
831 pr_err("Illegal value for \"%s\", must be"
832 " between 0 and 65535.\n", param->name);
833 return -1;
834 }
835 return 0;
836 }
837 if (IS_TYPERANGE_1_TO_65535(param)) {
838 if ((value < 1) || (value > 65535)) {
839 pr_err("Illegal value for \"%s\", must be"
840 " between 1 and 65535.\n", param->name);
841 return -1;
842 }
843 return 0;
844 }
845 if (IS_TYPERANGE_2_TO_3600(param)) {
846 if ((value < 2) || (value > 3600)) {
847 pr_err("Illegal value for \"%s\", must be"
848 " between 2 and 3600.\n", param->name);
849 return -1;
850 }
851 return 0;
852 }
853 if (IS_TYPERANGE_512_TO_16777215(param)) {
854 if ((value < 512) || (value > 16777215)) {
855 pr_err("Illegal value for \"%s\", must be"
856 " between 512 and 16777215.\n", param->name);
857 return -1;
858 }
859 return 0;
860 }
861
862 return 0;
863 }
864
865 static int iscsi_check_numerical_range_value(struct iscsi_param *param, char *value)
866 {
867 char *left_val_ptr = NULL, *right_val_ptr = NULL;
868 char *tilde_ptr = NULL;
869 u32 left_val, right_val, local_left_val;
870
871 if (strcmp(param->name, IFMARKINT) &&
872 strcmp(param->name, OFMARKINT)) {
873 pr_err("Only parameters \"%s\" or \"%s\" may contain a"
874 " numerical range value.\n", IFMARKINT, OFMARKINT);
875 return -1;
876 }
877
878 if (IS_PSTATE_PROPOSER(param))
879 return 0;
880
881 tilde_ptr = strchr(value, '~');
882 if (!tilde_ptr) {
883 pr_err("Unable to locate numerical range indicator"
884 " \"~\" for \"%s\".\n", param->name);
885 return -1;
886 }
887 *tilde_ptr = '\0';
888
889 left_val_ptr = value;
890 right_val_ptr = value + strlen(left_val_ptr) + 1;
891
892 if (iscsi_check_numerical_value(param, left_val_ptr) < 0)
893 return -1;
894 if (iscsi_check_numerical_value(param, right_val_ptr) < 0)
895 return -1;
896
897 left_val = simple_strtoul(left_val_ptr, NULL, 0);
898 right_val = simple_strtoul(right_val_ptr, NULL, 0);
899 *tilde_ptr = '~';
900
901 if (right_val < left_val) {
902 pr_err("Numerical range for parameter \"%s\" contains"
903 " a right value which is less than the left.\n",
904 param->name);
905 return -1;
906 }
907
908 /*
909 * For now, enforce reasonable defaults for [I,O]FMarkInt.
910 */
911 tilde_ptr = strchr(param->value, '~');
912 if (!tilde_ptr) {
913 pr_err("Unable to locate numerical range indicator"
914 " \"~\" for \"%s\".\n", param->name);
915 return -1;
916 }
917 *tilde_ptr = '\0';
918
919 left_val_ptr = param->value;
920 right_val_ptr = param->value + strlen(left_val_ptr) + 1;
921
922 local_left_val = simple_strtoul(left_val_ptr, NULL, 0);
923 *tilde_ptr = '~';
924
925 if (param->set_param) {
926 if ((left_val < local_left_val) ||
927 (right_val < local_left_val)) {
928 pr_err("Passed value range \"%u~%u\" is below"
929 " minimum left value \"%u\" for key \"%s\","
930 " rejecting.\n", left_val, right_val,
931 local_left_val, param->name);
932 return -1;
933 }
934 } else {
935 if ((left_val < local_left_val) &&
936 (right_val < local_left_val)) {
937 pr_err("Received value range \"%u~%u\" is"
938 " below minimum left value \"%u\" for key"
939 " \"%s\", rejecting.\n", left_val, right_val,
940 local_left_val, param->name);
941 SET_PSTATE_REJECT(param);
942 if (iscsi_update_param_value(param, REJECT) < 0)
943 return -1;
944 }
945 }
946
947 return 0;
948 }
949
950 static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value)
951 {
952 if (IS_PSTATE_PROPOSER(param))
953 return 0;
954
955 if (IS_TYPERANGE_AUTH_PARAM(param)) {
956 if (strcmp(value, KRB5) && strcmp(value, SPKM1) &&
957 strcmp(value, SPKM2) && strcmp(value, SRP) &&
958 strcmp(value, CHAP) && strcmp(value, NONE)) {
959 pr_err("Illegal value for \"%s\", must be"
960 " \"%s\", \"%s\", \"%s\", \"%s\", \"%s\""
961 " or \"%s\".\n", param->name, KRB5,
962 SPKM1, SPKM2, SRP, CHAP, NONE);
963 return -1;
964 }
965 }
966 if (IS_TYPERANGE_DIGEST_PARAM(param)) {
967 if (strcmp(value, CRC32C) && strcmp(value, NONE)) {
968 pr_err("Illegal value for \"%s\", must be"
969 " \"%s\" or \"%s\".\n", param->name,
970 CRC32C, NONE);
971 return -1;
972 }
973 }
974 if (IS_TYPERANGE_SESSIONTYPE(param)) {
975 if (strcmp(value, DISCOVERY) && strcmp(value, NORMAL)) {
976 pr_err("Illegal value for \"%s\", must be"
977 " \"%s\" or \"%s\".\n", param->name,
978 DISCOVERY, NORMAL);
979 return -1;
980 }
981 }
982
983 return 0;
984 }
985
986 /*
987 * This function is used to pick a value range number, currently just
988 * returns the lesser of both right values.
989 */
990 static char *iscsi_get_value_from_number_range(
991 struct iscsi_param *param,
992 char *value)
993 {
994 char *end_ptr, *tilde_ptr1 = NULL, *tilde_ptr2 = NULL;
995 u32 acceptor_right_value, proposer_right_value;
996
997 tilde_ptr1 = strchr(value, '~');
998 if (!tilde_ptr1)
999 return NULL;
1000 *tilde_ptr1++ = '\0';
1001 proposer_right_value = simple_strtoul(tilde_ptr1, &end_ptr, 0);
1002
1003 tilde_ptr2 = strchr(param->value, '~');
1004 if (!tilde_ptr2)
1005 return NULL;
1006 *tilde_ptr2++ = '\0';
1007 acceptor_right_value = simple_strtoul(tilde_ptr2, &end_ptr, 0);
1008
1009 return (acceptor_right_value >= proposer_right_value) ?
1010 tilde_ptr1 : tilde_ptr2;
1011 }
1012
1013 static char *iscsi_check_valuelist_for_support(
1014 struct iscsi_param *param,
1015 char *value)
1016 {
1017 char *tmp1 = NULL, *tmp2 = NULL;
1018 char *acceptor_values = NULL, *proposer_values = NULL;
1019
1020 acceptor_values = param->value;
1021 proposer_values = value;
1022
1023 do {
1024 if (!proposer_values)
1025 return NULL;
1026 tmp1 = strchr(proposer_values, ',');
1027 if (tmp1)
1028 *tmp1 = '\0';
1029 acceptor_values = param->value;
1030 do {
1031 if (!acceptor_values) {
1032 if (tmp1)
1033 *tmp1 = ',';
1034 return NULL;
1035 }
1036 tmp2 = strchr(acceptor_values, ',');
1037 if (tmp2)
1038 *tmp2 = '\0';
1039 if (!strcmp(acceptor_values, proposer_values)) {
1040 if (tmp2)
1041 *tmp2 = ',';
1042 goto out;
1043 }
1044 if (tmp2)
1045 *tmp2++ = ',';
1046
1047 acceptor_values = tmp2;
1048 } while (acceptor_values);
1049 if (tmp1)
1050 *tmp1++ = ',';
1051 proposer_values = tmp1;
1052 } while (proposer_values);
1053
1054 out:
1055 return proposer_values;
1056 }
1057
1058 static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value,
1059 struct iscsi_conn *conn)
1060 {
1061 u8 acceptor_boolean_value = 0, proposer_boolean_value = 0;
1062 char *negoitated_value = NULL;
1063
1064 if (IS_PSTATE_ACCEPTOR(param)) {
1065 pr_err("Received key \"%s\" twice, protocol error.\n",
1066 param->name);
1067 return -1;
1068 }
1069
1070 if (IS_PSTATE_REJECT(param))
1071 return 0;
1072
1073 if (IS_TYPE_BOOL_AND(param)) {
1074 if (!strcmp(value, YES))
1075 proposer_boolean_value = 1;
1076 if (!strcmp(param->value, YES))
1077 acceptor_boolean_value = 1;
1078 if (acceptor_boolean_value && proposer_boolean_value)
1079 do {} while (0);
1080 else {
1081 if (iscsi_update_param_value(param, NO) < 0)
1082 return -1;
1083 if (!proposer_boolean_value)
1084 SET_PSTATE_REPLY_OPTIONAL(param);
1085 }
1086 } else if (IS_TYPE_BOOL_OR(param)) {
1087 if (!strcmp(value, YES))
1088 proposer_boolean_value = 1;
1089 if (!strcmp(param->value, YES))
1090 acceptor_boolean_value = 1;
1091 if (acceptor_boolean_value || proposer_boolean_value) {
1092 if (iscsi_update_param_value(param, YES) < 0)
1093 return -1;
1094 if (proposer_boolean_value)
1095 SET_PSTATE_REPLY_OPTIONAL(param);
1096 }
1097 } else if (IS_TYPE_NUMBER(param)) {
1098 char *tmpptr, buf[11];
1099 u32 acceptor_value = simple_strtoul(param->value, &tmpptr, 0);
1100 u32 proposer_value = simple_strtoul(value, &tmpptr, 0);
1101
1102 memset(buf, 0, sizeof(buf));
1103
1104 if (!strcmp(param->name, MAXCONNECTIONS) ||
1105 !strcmp(param->name, MAXBURSTLENGTH) ||
1106 !strcmp(param->name, FIRSTBURSTLENGTH) ||
1107 !strcmp(param->name, MAXOUTSTANDINGR2T) ||
1108 !strcmp(param->name, DEFAULTTIME2RETAIN) ||
1109 !strcmp(param->name, ERRORRECOVERYLEVEL)) {
1110 if (proposer_value > acceptor_value) {
1111 sprintf(buf, "%u", acceptor_value);
1112 if (iscsi_update_param_value(param,
1113 &buf[0]) < 0)
1114 return -1;
1115 } else {
1116 if (iscsi_update_param_value(param, value) < 0)
1117 return -1;
1118 }
1119 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
1120 if (acceptor_value > proposer_value) {
1121 sprintf(buf, "%u", acceptor_value);
1122 if (iscsi_update_param_value(param,
1123 &buf[0]) < 0)
1124 return -1;
1125 } else {
1126 if (iscsi_update_param_value(param, value) < 0)
1127 return -1;
1128 }
1129 } else {
1130 if (iscsi_update_param_value(param, value) < 0)
1131 return -1;
1132 }
1133
1134 if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
1135 struct iscsi_param *param_mxdsl;
1136 unsigned long long tmp;
1137 int rc;
1138
1139 rc = strict_strtoull(param->value, 0, &tmp);
1140 if (rc < 0)
1141 return -1;
1142
1143 conn->conn_ops->MaxRecvDataSegmentLength = tmp;
1144 pr_debug("Saving op->MaxRecvDataSegmentLength from"
1145 " original initiator received value: %u\n",
1146 conn->conn_ops->MaxRecvDataSegmentLength);
1147
1148 param_mxdsl = iscsi_find_param_from_key(
1149 MAXXMITDATASEGMENTLENGTH,
1150 conn->param_list);
1151 if (!param_mxdsl)
1152 return -1;
1153
1154 rc = iscsi_update_param_value(param,
1155 param_mxdsl->value);
1156 if (rc < 0)
1157 return -1;
1158
1159 pr_debug("Updated %s to target MXDSL value: %s\n",
1160 param->name, param->value);
1161 }
1162
1163 } else if (IS_TYPE_NUMBER_RANGE(param)) {
1164 negoitated_value = iscsi_get_value_from_number_range(
1165 param, value);
1166 if (!negoitated_value)
1167 return -1;
1168 if (iscsi_update_param_value(param, negoitated_value) < 0)
1169 return -1;
1170 } else if (IS_TYPE_VALUE_LIST(param)) {
1171 negoitated_value = iscsi_check_valuelist_for_support(
1172 param, value);
1173 if (!negoitated_value) {
1174 pr_err("Proposer's value list \"%s\" contains"
1175 " no valid values from Acceptor's value list"
1176 " \"%s\".\n", value, param->value);
1177 return -1;
1178 }
1179 if (iscsi_update_param_value(param, negoitated_value) < 0)
1180 return -1;
1181 } else if (IS_PHASE_DECLARATIVE(param)) {
1182 if (iscsi_update_param_value(param, value) < 0)
1183 return -1;
1184 SET_PSTATE_REPLY_OPTIONAL(param);
1185 }
1186
1187 return 0;
1188 }
1189
1190 static int iscsi_check_proposer_state(struct iscsi_param *param, char *value)
1191 {
1192 if (IS_PSTATE_RESPONSE_GOT(param)) {
1193 pr_err("Received key \"%s\" twice, protocol error.\n",
1194 param->name);
1195 return -1;
1196 }
1197
1198 if (IS_TYPE_NUMBER_RANGE(param)) {
1199 u32 left_val = 0, right_val = 0, recieved_value = 0;
1200 char *left_val_ptr = NULL, *right_val_ptr = NULL;
1201 char *tilde_ptr = NULL;
1202
1203 if (!strcmp(value, IRRELEVANT) || !strcmp(value, REJECT)) {
1204 if (iscsi_update_param_value(param, value) < 0)
1205 return -1;
1206 return 0;
1207 }
1208
1209 tilde_ptr = strchr(value, '~');
1210 if (tilde_ptr) {
1211 pr_err("Illegal \"~\" in response for \"%s\".\n",
1212 param->name);
1213 return -1;
1214 }
1215 tilde_ptr = strchr(param->value, '~');
1216 if (!tilde_ptr) {
1217 pr_err("Unable to locate numerical range"
1218 " indicator \"~\" for \"%s\".\n", param->name);
1219 return -1;
1220 }
1221 *tilde_ptr = '\0';
1222
1223 left_val_ptr = param->value;
1224 right_val_ptr = param->value + strlen(left_val_ptr) + 1;
1225 left_val = simple_strtoul(left_val_ptr, NULL, 0);
1226 right_val = simple_strtoul(right_val_ptr, NULL, 0);
1227 recieved_value = simple_strtoul(value, NULL, 0);
1228
1229 *tilde_ptr = '~';
1230
1231 if ((recieved_value < left_val) ||
1232 (recieved_value > right_val)) {
1233 pr_err("Illegal response \"%s=%u\", value must"
1234 " be between %u and %u.\n", param->name,
1235 recieved_value, left_val, right_val);
1236 return -1;
1237 }
1238 } else if (IS_TYPE_VALUE_LIST(param)) {
1239 char *comma_ptr = NULL, *tmp_ptr = NULL;
1240
1241 comma_ptr = strchr(value, ',');
1242 if (comma_ptr) {
1243 pr_err("Illegal \",\" in response for \"%s\".\n",
1244 param->name);
1245 return -1;
1246 }
1247
1248 tmp_ptr = iscsi_check_valuelist_for_support(param, value);
1249 if (!tmp_ptr)
1250 return -1;
1251 }
1252
1253 if (iscsi_update_param_value(param, value) < 0)
1254 return -1;
1255
1256 return 0;
1257 }
1258
1259 static int iscsi_check_value(struct iscsi_param *param, char *value)
1260 {
1261 char *comma_ptr = NULL;
1262
1263 if (!strcmp(value, REJECT)) {
1264 if (!strcmp(param->name, IFMARKINT) ||
1265 !strcmp(param->name, OFMARKINT)) {
1266 /*
1267 * Reject is not fatal for [I,O]FMarkInt, and causes
1268 * [I,O]FMarker to be reset to No. (See iSCSI v20 A.3.2)
1269 */
1270 SET_PSTATE_REJECT(param);
1271 return 0;
1272 }
1273 pr_err("Received %s=%s\n", param->name, value);
1274 return -1;
1275 }
1276 if (!strcmp(value, IRRELEVANT)) {
1277 pr_debug("Received %s=%s\n", param->name, value);
1278 SET_PSTATE_IRRELEVANT(param);
1279 return 0;
1280 }
1281 if (!strcmp(value, NOTUNDERSTOOD)) {
1282 if (!IS_PSTATE_PROPOSER(param)) {
1283 pr_err("Received illegal offer %s=%s\n",
1284 param->name, value);
1285 return -1;
1286 }
1287
1288 /* #warning FIXME: Add check for X-ExtensionKey here */
1289 pr_err("Standard iSCSI key \"%s\" cannot be answered"
1290 " with \"%s\", protocol error.\n", param->name, value);
1291 return -1;
1292 }
1293
1294 do {
1295 comma_ptr = NULL;
1296 comma_ptr = strchr(value, ',');
1297
1298 if (comma_ptr && !IS_TYPE_VALUE_LIST(param)) {
1299 pr_err("Detected value separator \",\", but"
1300 " key \"%s\" does not allow a value list,"
1301 " protocol error.\n", param->name);
1302 return -1;
1303 }
1304 if (comma_ptr)
1305 *comma_ptr = '\0';
1306
1307 if (strlen(value) > VALUE_MAXLEN) {
1308 pr_err("Value for key \"%s\" exceeds %d,"
1309 " protocol error.\n", param->name,
1310 VALUE_MAXLEN);
1311 return -1;
1312 }
1313
1314 if (IS_TYPE_BOOL_AND(param) || IS_TYPE_BOOL_OR(param)) {
1315 if (iscsi_check_boolean_value(param, value) < 0)
1316 return -1;
1317 } else if (IS_TYPE_NUMBER(param)) {
1318 if (iscsi_check_numerical_value(param, value) < 0)
1319 return -1;
1320 } else if (IS_TYPE_NUMBER_RANGE(param)) {
1321 if (iscsi_check_numerical_range_value(param, value) < 0)
1322 return -1;
1323 } else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) {
1324 if (iscsi_check_string_or_list_value(param, value) < 0)
1325 return -1;
1326 } else {
1327 pr_err("Huh? 0x%02x\n", param->type);
1328 return -1;
1329 }
1330
1331 if (comma_ptr)
1332 *comma_ptr++ = ',';
1333
1334 value = comma_ptr;
1335 } while (value);
1336
1337 return 0;
1338 }
1339
1340 static struct iscsi_param *__iscsi_check_key(
1341 char *key,
1342 int sender,
1343 struct iscsi_param_list *param_list)
1344 {
1345 struct iscsi_param *param;
1346
1347 if (strlen(key) > KEY_MAXLEN) {
1348 pr_err("Length of key name \"%s\" exceeds %d.\n",
1349 key, KEY_MAXLEN);
1350 return NULL;
1351 }
1352
1353 param = iscsi_find_param_from_key(key, param_list);
1354 if (!param)
1355 return NULL;
1356
1357 if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
1358 pr_err("Key \"%s\" may not be sent to %s,"
1359 " protocol error.\n", param->name,
1360 (sender & SENDER_RECEIVER) ? "target" : "initiator");
1361 return NULL;
1362 }
1363
1364 if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
1365 pr_err("Key \"%s\" may not be sent to %s,"
1366 " protocol error.\n", param->name,
1367 (sender & SENDER_RECEIVER) ? "initiator" : "target");
1368 return NULL;
1369 }
1370
1371 return param;
1372 }
1373
1374 static struct iscsi_param *iscsi_check_key(
1375 char *key,
1376 int phase,
1377 int sender,
1378 struct iscsi_param_list *param_list)
1379 {
1380 struct iscsi_param *param;
1381 /*
1382 * Key name length must not exceed 63 bytes. (See iSCSI v20 5.1)
1383 */
1384 if (strlen(key) > KEY_MAXLEN) {
1385 pr_err("Length of key name \"%s\" exceeds %d.\n",
1386 key, KEY_MAXLEN);
1387 return NULL;
1388 }
1389
1390 param = iscsi_find_param_from_key(key, param_list);
1391 if (!param)
1392 return NULL;
1393
1394 if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
1395 pr_err("Key \"%s\" may not be sent to %s,"
1396 " protocol error.\n", param->name,
1397 (sender & SENDER_RECEIVER) ? "target" : "initiator");
1398 return NULL;
1399 }
1400 if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
1401 pr_err("Key \"%s\" may not be sent to %s,"
1402 " protocol error.\n", param->name,
1403 (sender & SENDER_RECEIVER) ? "initiator" : "target");
1404 return NULL;
1405 }
1406
1407 if (IS_PSTATE_ACCEPTOR(param)) {
1408 pr_err("Key \"%s\" received twice, protocol error.\n",
1409 key);
1410 return NULL;
1411 }
1412
1413 if (!phase)
1414 return param;
1415
1416 if (!(param->phase & phase)) {
1417 pr_err("Key \"%s\" may not be negotiated during ",
1418 param->name);
1419 switch (phase) {
1420 case PHASE_SECURITY:
1421 pr_debug("Security phase.\n");
1422 break;
1423 case PHASE_OPERATIONAL:
1424 pr_debug("Operational phase.\n");
1425 break;
1426 default:
1427 pr_debug("Unknown phase.\n");
1428 }
1429 return NULL;
1430 }
1431
1432 return param;
1433 }
1434
1435 static int iscsi_enforce_integrity_rules(
1436 u8 phase,
1437 struct iscsi_param_list *param_list)
1438 {
1439 char *tmpptr;
1440 u8 DataSequenceInOrder = 0;
1441 u8 ErrorRecoveryLevel = 0, SessionType = 0;
1442 u8 IFMarker = 0, OFMarker = 0;
1443 u8 IFMarkInt_Reject = 1, OFMarkInt_Reject = 1;
1444 u32 FirstBurstLength = 0, MaxBurstLength = 0;
1445 struct iscsi_param *param = NULL;
1446
1447 list_for_each_entry(param, &param_list->param_list, p_list) {
1448 if (!(param->phase & phase))
1449 continue;
1450 if (!strcmp(param->name, SESSIONTYPE))
1451 if (!strcmp(param->value, NORMAL))
1452 SessionType = 1;
1453 if (!strcmp(param->name, ERRORRECOVERYLEVEL))
1454 ErrorRecoveryLevel = simple_strtoul(param->value,
1455 &tmpptr, 0);
1456 if (!strcmp(param->name, DATASEQUENCEINORDER))
1457 if (!strcmp(param->value, YES))
1458 DataSequenceInOrder = 1;
1459 if (!strcmp(param->name, MAXBURSTLENGTH))
1460 MaxBurstLength = simple_strtoul(param->value,
1461 &tmpptr, 0);
1462 if (!strcmp(param->name, IFMARKER))
1463 if (!strcmp(param->value, YES))
1464 IFMarker = 1;
1465 if (!strcmp(param->name, OFMARKER))
1466 if (!strcmp(param->value, YES))
1467 OFMarker = 1;
1468 if (!strcmp(param->name, IFMARKINT))
1469 if (!strcmp(param->value, REJECT))
1470 IFMarkInt_Reject = 1;
1471 if (!strcmp(param->name, OFMARKINT))
1472 if (!strcmp(param->value, REJECT))
1473 OFMarkInt_Reject = 1;
1474 }
1475
1476 list_for_each_entry(param, &param_list->param_list, p_list) {
1477 if (!(param->phase & phase))
1478 continue;
1479 if (!SessionType && (!IS_PSTATE_ACCEPTOR(param) &&
1480 (strcmp(param->name, IFMARKER) &&
1481 strcmp(param->name, OFMARKER) &&
1482 strcmp(param->name, IFMARKINT) &&
1483 strcmp(param->name, OFMARKINT))))
1484 continue;
1485 if (!strcmp(param->name, MAXOUTSTANDINGR2T) &&
1486 DataSequenceInOrder && (ErrorRecoveryLevel > 0)) {
1487 if (strcmp(param->value, "1")) {
1488 if (iscsi_update_param_value(param, "1") < 0)
1489 return -1;
1490 pr_debug("Reset \"%s\" to \"%s\".\n",
1491 param->name, param->value);
1492 }
1493 }
1494 if (!strcmp(param->name, MAXCONNECTIONS) && !SessionType) {
1495 if (strcmp(param->value, "1")) {
1496 if (iscsi_update_param_value(param, "1") < 0)
1497 return -1;
1498 pr_debug("Reset \"%s\" to \"%s\".\n",
1499 param->name, param->value);
1500 }
1501 }
1502 if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
1503 FirstBurstLength = simple_strtoul(param->value,
1504 &tmpptr, 0);
1505 if (FirstBurstLength > MaxBurstLength) {
1506 char tmpbuf[11];
1507 memset(tmpbuf, 0, sizeof(tmpbuf));
1508 sprintf(tmpbuf, "%u", MaxBurstLength);
1509 if (iscsi_update_param_value(param, tmpbuf))
1510 return -1;
1511 pr_debug("Reset \"%s\" to \"%s\".\n",
1512 param->name, param->value);
1513 }
1514 }
1515 if (!strcmp(param->name, IFMARKER) && IFMarkInt_Reject) {
1516 if (iscsi_update_param_value(param, NO) < 0)
1517 return -1;
1518 IFMarker = 0;
1519 pr_debug("Reset \"%s\" to \"%s\".\n",
1520 param->name, param->value);
1521 }
1522 if (!strcmp(param->name, OFMARKER) && OFMarkInt_Reject) {
1523 if (iscsi_update_param_value(param, NO) < 0)
1524 return -1;
1525 OFMarker = 0;
1526 pr_debug("Reset \"%s\" to \"%s\".\n",
1527 param->name, param->value);
1528 }
1529 if (!strcmp(param->name, IFMARKINT) && !IFMarker) {
1530 if (!strcmp(param->value, REJECT))
1531 continue;
1532 param->state &= ~PSTATE_NEGOTIATE;
1533 if (iscsi_update_param_value(param, IRRELEVANT) < 0)
1534 return -1;
1535 pr_debug("Reset \"%s\" to \"%s\".\n",
1536 param->name, param->value);
1537 }
1538 if (!strcmp(param->name, OFMARKINT) && !OFMarker) {
1539 if (!strcmp(param->value, REJECT))
1540 continue;
1541 param->state &= ~PSTATE_NEGOTIATE;
1542 if (iscsi_update_param_value(param, IRRELEVANT) < 0)
1543 return -1;
1544 pr_debug("Reset \"%s\" to \"%s\".\n",
1545 param->name, param->value);
1546 }
1547 }
1548
1549 return 0;
1550 }
1551
1552 int iscsi_decode_text_input(
1553 u8 phase,
1554 u8 sender,
1555 char *textbuf,
1556 u32 length,
1557 struct iscsi_conn *conn)
1558 {
1559 struct iscsi_param_list *param_list = conn->param_list;
1560 char *tmpbuf, *start = NULL, *end = NULL;
1561
1562 tmpbuf = kzalloc(length + 1, GFP_KERNEL);
1563 if (!tmpbuf) {
1564 pr_err("Unable to allocate memory for tmpbuf.\n");
1565 return -1;
1566 }
1567
1568 memcpy(tmpbuf, textbuf, length);
1569 tmpbuf[length] = '\0';
1570 start = tmpbuf;
1571 end = (start + length);
1572
1573 while (start < end) {
1574 char *key, *value;
1575 struct iscsi_param *param;
1576
1577 if (iscsi_extract_key_value(start, &key, &value) < 0) {
1578 kfree(tmpbuf);
1579 return -1;
1580 }
1581
1582 pr_debug("Got key: %s=%s\n", key, value);
1583
1584 if (phase & PHASE_SECURITY) {
1585 if (iscsi_check_for_auth_key(key) > 0) {
1586 char *tmpptr = key + strlen(key);
1587 *tmpptr = '=';
1588 kfree(tmpbuf);
1589 return 1;
1590 }
1591 }
1592
1593 param = iscsi_check_key(key, phase, sender, param_list);
1594 if (!param) {
1595 if (iscsi_add_notunderstood_response(key,
1596 value, param_list) < 0) {
1597 kfree(tmpbuf);
1598 return -1;
1599 }
1600 start += strlen(key) + strlen(value) + 2;
1601 continue;
1602 }
1603 if (iscsi_check_value(param, value) < 0) {
1604 kfree(tmpbuf);
1605 return -1;
1606 }
1607
1608 start += strlen(key) + strlen(value) + 2;
1609
1610 if (IS_PSTATE_PROPOSER(param)) {
1611 if (iscsi_check_proposer_state(param, value) < 0) {
1612 kfree(tmpbuf);
1613 return -1;
1614 }
1615 SET_PSTATE_RESPONSE_GOT(param);
1616 } else {
1617 if (iscsi_check_acceptor_state(param, value, conn) < 0) {
1618 kfree(tmpbuf);
1619 return -1;
1620 }
1621 SET_PSTATE_ACCEPTOR(param);
1622 }
1623 }
1624
1625 kfree(tmpbuf);
1626 return 0;
1627 }
1628
1629 int iscsi_encode_text_output(
1630 u8 phase,
1631 u8 sender,
1632 char *textbuf,
1633 u32 *length,
1634 struct iscsi_param_list *param_list)
1635 {
1636 char *output_buf = NULL;
1637 struct iscsi_extra_response *er;
1638 struct iscsi_param *param;
1639
1640 output_buf = textbuf + *length;
1641
1642 if (iscsi_enforce_integrity_rules(phase, param_list) < 0)
1643 return -1;
1644
1645 list_for_each_entry(param, &param_list->param_list, p_list) {
1646 if (!(param->sender & sender))
1647 continue;
1648 if (IS_PSTATE_ACCEPTOR(param) &&
1649 !IS_PSTATE_RESPONSE_SENT(param) &&
1650 !IS_PSTATE_REPLY_OPTIONAL(param) &&
1651 (param->phase & phase)) {
1652 *length += sprintf(output_buf, "%s=%s",
1653 param->name, param->value);
1654 *length += 1;
1655 output_buf = textbuf + *length;
1656 SET_PSTATE_RESPONSE_SENT(param);
1657 pr_debug("Sending key: %s=%s\n",
1658 param->name, param->value);
1659 continue;
1660 }
1661 if (IS_PSTATE_NEGOTIATE(param) &&
1662 !IS_PSTATE_ACCEPTOR(param) &&
1663 !IS_PSTATE_PROPOSER(param) &&
1664 (param->phase & phase)) {
1665 *length += sprintf(output_buf, "%s=%s",
1666 param->name, param->value);
1667 *length += 1;
1668 output_buf = textbuf + *length;
1669 SET_PSTATE_PROPOSER(param);
1670 iscsi_check_proposer_for_optional_reply(param);
1671 pr_debug("Sending key: %s=%s\n",
1672 param->name, param->value);
1673 }
1674 }
1675
1676 list_for_each_entry(er, &param_list->extra_response_list, er_list) {
1677 *length += sprintf(output_buf, "%s=%s", er->key, er->value);
1678 *length += 1;
1679 output_buf = textbuf + *length;
1680 pr_debug("Sending key: %s=%s\n", er->key, er->value);
1681 }
1682 iscsi_release_extra_responses(param_list);
1683
1684 return 0;
1685 }
1686
1687 int iscsi_check_negotiated_keys(struct iscsi_param_list *param_list)
1688 {
1689 int ret = 0;
1690 struct iscsi_param *param;
1691
1692 list_for_each_entry(param, &param_list->param_list, p_list) {
1693 if (IS_PSTATE_NEGOTIATE(param) &&
1694 IS_PSTATE_PROPOSER(param) &&
1695 !IS_PSTATE_RESPONSE_GOT(param) &&
1696 !IS_PSTATE_REPLY_OPTIONAL(param) &&
1697 !IS_PHASE_DECLARATIVE(param)) {
1698 pr_err("No response for proposed key \"%s\".\n",
1699 param->name);
1700 ret = -1;
1701 }
1702 }
1703
1704 return ret;
1705 }
1706
1707 int iscsi_change_param_value(
1708 char *keyvalue,
1709 struct iscsi_param_list *param_list,
1710 int check_key)
1711 {
1712 char *key = NULL, *value = NULL;
1713 struct iscsi_param *param;
1714 int sender = 0;
1715
1716 if (iscsi_extract_key_value(keyvalue, &key, &value) < 0)
1717 return -1;
1718
1719 if (!check_key) {
1720 param = __iscsi_check_key(keyvalue, sender, param_list);
1721 if (!param)
1722 return -1;
1723 } else {
1724 param = iscsi_check_key(keyvalue, 0, sender, param_list);
1725 if (!param)
1726 return -1;
1727
1728 param->set_param = 1;
1729 if (iscsi_check_value(param, value) < 0) {
1730 param->set_param = 0;
1731 return -1;
1732 }
1733 param->set_param = 0;
1734 }
1735
1736 if (iscsi_update_param_value(param, value) < 0)
1737 return -1;
1738
1739 return 0;
1740 }
1741
1742 void iscsi_set_connection_parameters(
1743 struct iscsi_conn_ops *ops,
1744 struct iscsi_param_list *param_list)
1745 {
1746 char *tmpptr;
1747 struct iscsi_param *param;
1748
1749 pr_debug("---------------------------------------------------"
1750 "---------------\n");
1751 list_for_each_entry(param, &param_list->param_list, p_list) {
1752 /*
1753 * Special case to set MAXXMITDATASEGMENTLENGTH from the
1754 * target requested MaxRecvDataSegmentLength, even though
1755 * this key is not sent over the wire.
1756 */
1757 if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
1758 ops->MaxXmitDataSegmentLength =
1759 simple_strtoul(param->value, &tmpptr, 0);
1760 pr_debug("MaxXmitDataSegmentLength: %s\n",
1761 param->value);
1762 }
1763
1764 if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
1765 continue;
1766 if (!strcmp(param->name, AUTHMETHOD)) {
1767 pr_debug("AuthMethod: %s\n",
1768 param->value);
1769 } else if (!strcmp(param->name, HEADERDIGEST)) {
1770 ops->HeaderDigest = !strcmp(param->value, CRC32C);
1771 pr_debug("HeaderDigest: %s\n",
1772 param->value);
1773 } else if (!strcmp(param->name, DATADIGEST)) {
1774 ops->DataDigest = !strcmp(param->value, CRC32C);
1775 pr_debug("DataDigest: %s\n",
1776 param->value);
1777 } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
1778 /*
1779 * At this point iscsi_check_acceptor_state() will have
1780 * set ops->MaxRecvDataSegmentLength from the original
1781 * initiator provided value.
1782 */
1783 pr_debug("MaxRecvDataSegmentLength: %u\n",
1784 ops->MaxRecvDataSegmentLength);
1785 } else if (!strcmp(param->name, OFMARKER)) {
1786 ops->OFMarker = !strcmp(param->value, YES);
1787 pr_debug("OFMarker: %s\n",
1788 param->value);
1789 } else if (!strcmp(param->name, IFMARKER)) {
1790 ops->IFMarker = !strcmp(param->value, YES);
1791 pr_debug("IFMarker: %s\n",
1792 param->value);
1793 } else if (!strcmp(param->name, OFMARKINT)) {
1794 ops->OFMarkInt =
1795 simple_strtoul(param->value, &tmpptr, 0);
1796 pr_debug("OFMarkInt: %s\n",
1797 param->value);
1798 } else if (!strcmp(param->name, IFMARKINT)) {
1799 ops->IFMarkInt =
1800 simple_strtoul(param->value, &tmpptr, 0);
1801 pr_debug("IFMarkInt: %s\n",
1802 param->value);
1803 }
1804 }
1805 pr_debug("----------------------------------------------------"
1806 "--------------\n");
1807 }
1808
1809 void iscsi_set_session_parameters(
1810 struct iscsi_sess_ops *ops,
1811 struct iscsi_param_list *param_list,
1812 int leading)
1813 {
1814 char *tmpptr;
1815 struct iscsi_param *param;
1816
1817 pr_debug("----------------------------------------------------"
1818 "--------------\n");
1819 list_for_each_entry(param, &param_list->param_list, p_list) {
1820 if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
1821 continue;
1822 if (!strcmp(param->name, INITIATORNAME)) {
1823 if (!param->value)
1824 continue;
1825 if (leading)
1826 snprintf(ops->InitiatorName,
1827 sizeof(ops->InitiatorName),
1828 "%s", param->value);
1829 pr_debug("InitiatorName: %s\n",
1830 param->value);
1831 } else if (!strcmp(param->name, INITIATORALIAS)) {
1832 if (!param->value)
1833 continue;
1834 snprintf(ops->InitiatorAlias,
1835 sizeof(ops->InitiatorAlias),
1836 "%s", param->value);
1837 pr_debug("InitiatorAlias: %s\n",
1838 param->value);
1839 } else if (!strcmp(param->name, TARGETNAME)) {
1840 if (!param->value)
1841 continue;
1842 if (leading)
1843 snprintf(ops->TargetName,
1844 sizeof(ops->TargetName),
1845 "%s", param->value);
1846 pr_debug("TargetName: %s\n",
1847 param->value);
1848 } else if (!strcmp(param->name, TARGETALIAS)) {
1849 if (!param->value)
1850 continue;
1851 snprintf(ops->TargetAlias, sizeof(ops->TargetAlias),
1852 "%s", param->value);
1853 pr_debug("TargetAlias: %s\n",
1854 param->value);
1855 } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
1856 ops->TargetPortalGroupTag =
1857 simple_strtoul(param->value, &tmpptr, 0);
1858 pr_debug("TargetPortalGroupTag: %s\n",
1859 param->value);
1860 } else if (!strcmp(param->name, MAXCONNECTIONS)) {
1861 ops->MaxConnections =
1862 simple_strtoul(param->value, &tmpptr, 0);
1863 pr_debug("MaxConnections: %s\n",
1864 param->value);
1865 } else if (!strcmp(param->name, INITIALR2T)) {
1866 ops->InitialR2T = !strcmp(param->value, YES);
1867 pr_debug("InitialR2T: %s\n",
1868 param->value);
1869 } else if (!strcmp(param->name, IMMEDIATEDATA)) {
1870 ops->ImmediateData = !strcmp(param->value, YES);
1871 pr_debug("ImmediateData: %s\n",
1872 param->value);
1873 } else if (!strcmp(param->name, MAXBURSTLENGTH)) {
1874 ops->MaxBurstLength =
1875 simple_strtoul(param->value, &tmpptr, 0);
1876 pr_debug("MaxBurstLength: %s\n",
1877 param->value);
1878 } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
1879 ops->FirstBurstLength =
1880 simple_strtoul(param->value, &tmpptr, 0);
1881 pr_debug("FirstBurstLength: %s\n",
1882 param->value);
1883 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
1884 ops->DefaultTime2Wait =
1885 simple_strtoul(param->value, &tmpptr, 0);
1886 pr_debug("DefaultTime2Wait: %s\n",
1887 param->value);
1888 } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
1889 ops->DefaultTime2Retain =
1890 simple_strtoul(param->value, &tmpptr, 0);
1891 pr_debug("DefaultTime2Retain: %s\n",
1892 param->value);
1893 } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
1894 ops->MaxOutstandingR2T =
1895 simple_strtoul(param->value, &tmpptr, 0);
1896 pr_debug("MaxOutstandingR2T: %s\n",
1897 param->value);
1898 } else if (!strcmp(param->name, DATAPDUINORDER)) {
1899 ops->DataPDUInOrder = !strcmp(param->value, YES);
1900 pr_debug("DataPDUInOrder: %s\n",
1901 param->value);
1902 } else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
1903 ops->DataSequenceInOrder = !strcmp(param->value, YES);
1904 pr_debug("DataSequenceInOrder: %s\n",
1905 param->value);
1906 } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
1907 ops->ErrorRecoveryLevel =
1908 simple_strtoul(param->value, &tmpptr, 0);
1909 pr_debug("ErrorRecoveryLevel: %s\n",
1910 param->value);
1911 } else if (!strcmp(param->name, SESSIONTYPE)) {
1912 ops->SessionType = !strcmp(param->value, DISCOVERY);
1913 pr_debug("SessionType: %s\n",
1914 param->value);
1915 }
1916 }
1917 pr_debug("----------------------------------------------------"
1918 "--------------\n");
1919
1920 }
Linux with added FPC-III support