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Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target...
[mirror_ubuntu-artful-kernel.git] / drivers / target / iscsi / iscsi_target_parameters.c
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 = 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;
217 out:
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 */
228 int 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, MAXXMITDATASEGMENTLENGTH,
338 INITIAL_MAXXMITDATASEGMENTLENGTH,
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, MAXRECVDATASEGMENTLENGTH,
345 INITIAL_MAXRECVDATASEGMENTLENGTH,
346 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
347 TYPERANGE_512_TO_16777215, USE_ALL);
348 if (!param)
349 goto out;
350
351 param = iscsi_set_default_param(pl, MAXBURSTLENGTH,
352 INITIAL_MAXBURSTLENGTH, PHASE_OPERATIONAL,
353 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, FIRSTBURSTLENGTH,
359 INITIAL_FIRSTBURSTLENGTH,
360 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
361 TYPERANGE_512_TO_16777215, USE_LEADING_ONLY);
362 if (!param)
363 goto out;
364
365 param = iscsi_set_default_param(pl, DEFAULTTIME2WAIT,
366 INITIAL_DEFAULTTIME2WAIT,
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, DEFAULTTIME2RETAIN,
373 INITIAL_DEFAULTTIME2RETAIN,
374 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
375 TYPERANGE_0_TO_3600, USE_LEADING_ONLY);
376 if (!param)
377 goto out;
378
379 param = iscsi_set_default_param(pl, MAXOUTSTANDINGR2T,
380 INITIAL_MAXOUTSTANDINGR2T,
381 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
382 TYPERANGE_1_TO_65535, USE_LEADING_ONLY);
383 if (!param)
384 goto out;
385
386 param = iscsi_set_default_param(pl, DATAPDUINORDER,
387 INITIAL_DATAPDUINORDER, PHASE_OPERATIONAL,
388 SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_OR,
389 USE_LEADING_ONLY);
390 if (!param)
391 goto out;
392
393 param = iscsi_set_default_param(pl, DATASEQUENCEINORDER,
394 INITIAL_DATASEQUENCEINORDER,
395 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
396 TYPERANGE_BOOL_OR, USE_LEADING_ONLY);
397 if (!param)
398 goto out;
399
400 param = iscsi_set_default_param(pl, ERRORRECOVERYLEVEL,
401 INITIAL_ERRORRECOVERYLEVEL,
402 PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
403 TYPERANGE_0_TO_2, USE_LEADING_ONLY);
404 if (!param)
405 goto out;
406
407 param = iscsi_set_default_param(pl, SESSIONTYPE, INITIAL_SESSIONTYPE,
408 PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_INITIATOR,
409 TYPERANGE_SESSIONTYPE, USE_LEADING_ONLY);
410 if (!param)
411 goto out;
412
413 param = iscsi_set_default_param(pl, IFMARKER, INITIAL_IFMARKER,
414 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
415 TYPERANGE_BOOL_AND, USE_INITIAL_ONLY);
416 if (!param)
417 goto out;
418
419 param = iscsi_set_default_param(pl, OFMARKER, INITIAL_OFMARKER,
420 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
421 TYPERANGE_BOOL_AND, USE_INITIAL_ONLY);
422 if (!param)
423 goto out;
424
425 param = iscsi_set_default_param(pl, IFMARKINT, INITIAL_IFMARKINT,
426 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
427 TYPERANGE_MARKINT, USE_INITIAL_ONLY);
428 if (!param)
429 goto out;
430
431 param = iscsi_set_default_param(pl, OFMARKINT, INITIAL_OFMARKINT,
432 PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
433 TYPERANGE_MARKINT, USE_INITIAL_ONLY);
434 if (!param)
435 goto out;
436
437 *param_list_ptr = pl;
438 return 0;
439 out:
440 iscsi_release_param_list(pl);
441 return -1;
442 }
443
444 int iscsi_set_keys_to_negotiate(
445 int sessiontype,
446 struct iscsi_param_list *param_list)
447 {
448 struct iscsi_param *param;
449
450 list_for_each_entry(param, &param_list->param_list, p_list) {
451 param->state = 0;
452 if (!strcmp(param->name, AUTHMETHOD)) {
453 SET_PSTATE_NEGOTIATE(param);
454 } else if (!strcmp(param->name, HEADERDIGEST)) {
455 SET_PSTATE_NEGOTIATE(param);
456 } else if (!strcmp(param->name, DATADIGEST)) {
457 SET_PSTATE_NEGOTIATE(param);
458 } else if (!strcmp(param->name, MAXCONNECTIONS)) {
459 SET_PSTATE_NEGOTIATE(param);
460 } else if (!strcmp(param->name, TARGETNAME)) {
461 continue;
462 } else if (!strcmp(param->name, INITIATORNAME)) {
463 continue;
464 } else if (!strcmp(param->name, TARGETALIAS)) {
465 if (param->value)
466 SET_PSTATE_NEGOTIATE(param);
467 } else if (!strcmp(param->name, INITIATORALIAS)) {
468 continue;
469 } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
470 SET_PSTATE_NEGOTIATE(param);
471 } else if (!strcmp(param->name, INITIALR2T)) {
472 SET_PSTATE_NEGOTIATE(param);
473 } else if (!strcmp(param->name, IMMEDIATEDATA)) {
474 SET_PSTATE_NEGOTIATE(param);
475 } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
476 SET_PSTATE_NEGOTIATE(param);
477 } else if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
478 continue;
479 } else if (!strcmp(param->name, MAXBURSTLENGTH)) {
480 SET_PSTATE_NEGOTIATE(param);
481 } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
482 SET_PSTATE_NEGOTIATE(param);
483 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
484 SET_PSTATE_NEGOTIATE(param);
485 } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
486 SET_PSTATE_NEGOTIATE(param);
487 } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
488 SET_PSTATE_NEGOTIATE(param);
489 } else if (!strcmp(param->name, DATAPDUINORDER)) {
490 SET_PSTATE_NEGOTIATE(param);
491 } else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
492 SET_PSTATE_NEGOTIATE(param);
493 } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
494 SET_PSTATE_NEGOTIATE(param);
495 } else if (!strcmp(param->name, SESSIONTYPE)) {
496 SET_PSTATE_NEGOTIATE(param);
497 } else if (!strcmp(param->name, IFMARKER)) {
498 SET_PSTATE_NEGOTIATE(param);
499 } else if (!strcmp(param->name, OFMARKER)) {
500 SET_PSTATE_NEGOTIATE(param);
501 } else if (!strcmp(param->name, IFMARKINT)) {
502 SET_PSTATE_NEGOTIATE(param);
503 } else if (!strcmp(param->name, OFMARKINT)) {
504 SET_PSTATE_NEGOTIATE(param);
505 }
506 }
507
508 return 0;
509 }
510
511 int iscsi_set_keys_irrelevant_for_discovery(
512 struct iscsi_param_list *param_list)
513 {
514 struct iscsi_param *param;
515
516 list_for_each_entry(param, &param_list->param_list, p_list) {
517 if (!strcmp(param->name, MAXCONNECTIONS))
518 param->state &= ~PSTATE_NEGOTIATE;
519 else if (!strcmp(param->name, INITIALR2T))
520 param->state &= ~PSTATE_NEGOTIATE;
521 else if (!strcmp(param->name, IMMEDIATEDATA))
522 param->state &= ~PSTATE_NEGOTIATE;
523 else if (!strcmp(param->name, MAXBURSTLENGTH))
524 param->state &= ~PSTATE_NEGOTIATE;
525 else if (!strcmp(param->name, FIRSTBURSTLENGTH))
526 param->state &= ~PSTATE_NEGOTIATE;
527 else if (!strcmp(param->name, MAXOUTSTANDINGR2T))
528 param->state &= ~PSTATE_NEGOTIATE;
529 else if (!strcmp(param->name, DATAPDUINORDER))
530 param->state &= ~PSTATE_NEGOTIATE;
531 else if (!strcmp(param->name, DATASEQUENCEINORDER))
532 param->state &= ~PSTATE_NEGOTIATE;
533 else if (!strcmp(param->name, ERRORRECOVERYLEVEL))
534 param->state &= ~PSTATE_NEGOTIATE;
535 else if (!strcmp(param->name, DEFAULTTIME2WAIT))
536 param->state &= ~PSTATE_NEGOTIATE;
537 else if (!strcmp(param->name, DEFAULTTIME2RETAIN))
538 param->state &= ~PSTATE_NEGOTIATE;
539 else if (!strcmp(param->name, IFMARKER))
540 param->state &= ~PSTATE_NEGOTIATE;
541 else if (!strcmp(param->name, OFMARKER))
542 param->state &= ~PSTATE_NEGOTIATE;
543 else if (!strcmp(param->name, IFMARKINT))
544 param->state &= ~PSTATE_NEGOTIATE;
545 else if (!strcmp(param->name, OFMARKINT))
546 param->state &= ~PSTATE_NEGOTIATE;
547 }
548
549 return 0;
550 }
551
552 int iscsi_copy_param_list(
553 struct iscsi_param_list **dst_param_list,
554 struct iscsi_param_list *src_param_list,
555 int leading)
556 {
557 struct iscsi_param *param = NULL;
558 struct iscsi_param *new_param = NULL;
559 struct iscsi_param_list *param_list = NULL;
560
561 param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
562 if (!param_list) {
563 pr_err("Unable to allocate memory for struct iscsi_param_list.\n");
564 goto err_out;
565 }
566 INIT_LIST_HEAD(&param_list->param_list);
567 INIT_LIST_HEAD(&param_list->extra_response_list);
568
569 list_for_each_entry(param, &src_param_list->param_list, p_list) {
570 if (!leading && (param->scope & SCOPE_SESSION_WIDE)) {
571 if ((strcmp(param->name, "TargetName") != 0) &&
572 (strcmp(param->name, "InitiatorName") != 0) &&
573 (strcmp(param->name, "TargetPortalGroupTag") != 0))
574 continue;
575 }
576
577 new_param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL);
578 if (!new_param) {
579 pr_err("Unable to allocate memory for struct iscsi_param.\n");
580 goto err_out;
581 }
582
583 new_param->name = kstrdup(param->name, GFP_KERNEL);
584 new_param->value = kstrdup(param->value, GFP_KERNEL);
585 if (!new_param->value || !new_param->name) {
586 kfree(new_param->value);
587 kfree(new_param->name);
588 kfree(new_param);
589 pr_err("Unable to allocate memory for parameter name/value.\n");
590 goto err_out;
591 }
592
593 new_param->set_param = param->set_param;
594 new_param->phase = param->phase;
595 new_param->scope = param->scope;
596 new_param->sender = param->sender;
597 new_param->type = param->type;
598 new_param->use = param->use;
599 new_param->type_range = param->type_range;
600
601 list_add_tail(&new_param->p_list, &param_list->param_list);
602 }
603
604 if (!list_empty(&param_list->param_list)) {
605 *dst_param_list = param_list;
606 } else {
607 pr_err("No parameters allocated.\n");
608 goto err_out;
609 }
610
611 return 0;
612
613 err_out:
614 iscsi_release_param_list(param_list);
615 return -1;
616 }
617
618 static void iscsi_release_extra_responses(struct iscsi_param_list *param_list)
619 {
620 struct iscsi_extra_response *er, *er_tmp;
621
622 list_for_each_entry_safe(er, er_tmp, &param_list->extra_response_list,
623 er_list) {
624 list_del(&er->er_list);
625 kfree(er);
626 }
627 }
628
629 void iscsi_release_param_list(struct iscsi_param_list *param_list)
630 {
631 struct iscsi_param *param, *param_tmp;
632
633 list_for_each_entry_safe(param, param_tmp, &param_list->param_list,
634 p_list) {
635 list_del(&param->p_list);
636
637 kfree(param->name);
638 param->name = NULL;
639 kfree(param->value);
640 param->value = NULL;
641 kfree(param);
642 param = NULL;
643 }
644
645 iscsi_release_extra_responses(param_list);
646
647 kfree(param_list);
648 }
649
650 struct iscsi_param *iscsi_find_param_from_key(
651 char *key,
652 struct iscsi_param_list *param_list)
653 {
654 struct iscsi_param *param;
655
656 if (!key || !param_list) {
657 pr_err("Key or parameter list pointer is NULL.\n");
658 return NULL;
659 }
660
661 list_for_each_entry(param, &param_list->param_list, p_list) {
662 if (!strcmp(key, param->name))
663 return param;
664 }
665
666 pr_err("Unable to locate key \"%s\".\n", key);
667 return NULL;
668 }
669
670 int iscsi_extract_key_value(char *textbuf, char **key, char **value)
671 {
672 *value = strchr(textbuf, '=');
673 if (!*value) {
674 pr_err("Unable to locate \"=\" separator for key,"
675 " ignoring request.\n");
676 return -1;
677 }
678
679 *key = textbuf;
680 **value = '\0';
681 *value = *value + 1;
682
683 return 0;
684 }
685
686 int iscsi_update_param_value(struct iscsi_param *param, char *value)
687 {
688 kfree(param->value);
689
690 param->value = kzalloc(strlen(value) + 1, GFP_KERNEL);
691 if (!param->value) {
692 pr_err("Unable to allocate memory for value.\n");
693 return -ENOMEM;
694 }
695
696 memcpy(param->value, value, strlen(value));
697 param->value[strlen(value)] = '\0';
698
699 pr_debug("iSCSI Parameter updated to %s=%s\n",
700 param->name, param->value);
701 return 0;
702 }
703
704 static int iscsi_add_notunderstood_response(
705 char *key,
706 char *value,
707 struct iscsi_param_list *param_list)
708 {
709 struct iscsi_extra_response *extra_response;
710
711 if (strlen(value) > VALUE_MAXLEN) {
712 pr_err("Value for notunderstood key \"%s\" exceeds %d,"
713 " protocol error.\n", key, VALUE_MAXLEN);
714 return -1;
715 }
716
717 extra_response = kzalloc(sizeof(struct iscsi_extra_response), GFP_KERNEL);
718 if (!extra_response) {
719 pr_err("Unable to allocate memory for"
720 " struct iscsi_extra_response.\n");
721 return -1;
722 }
723 INIT_LIST_HEAD(&extra_response->er_list);
724
725 strncpy(extra_response->key, key, strlen(key) + 1);
726 strncpy(extra_response->value, NOTUNDERSTOOD,
727 strlen(NOTUNDERSTOOD) + 1);
728
729 list_add_tail(&extra_response->er_list,
730 &param_list->extra_response_list);
731 return 0;
732 }
733
734 static int iscsi_check_for_auth_key(char *key)
735 {
736 /*
737 * RFC 1994
738 */
739 if (!strcmp(key, "CHAP_A") || !strcmp(key, "CHAP_I") ||
740 !strcmp(key, "CHAP_C") || !strcmp(key, "CHAP_N") ||
741 !strcmp(key, "CHAP_R"))
742 return 1;
743
744 /*
745 * RFC 2945
746 */
747 if (!strcmp(key, "SRP_U") || !strcmp(key, "SRP_N") ||
748 !strcmp(key, "SRP_g") || !strcmp(key, "SRP_s") ||
749 !strcmp(key, "SRP_A") || !strcmp(key, "SRP_B") ||
750 !strcmp(key, "SRP_M") || !strcmp(key, "SRP_HM"))
751 return 1;
752
753 return 0;
754 }
755
756 static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
757 {
758 if (IS_TYPE_BOOL_AND(param)) {
759 if (!strcmp(param->value, NO))
760 SET_PSTATE_REPLY_OPTIONAL(param);
761 } else if (IS_TYPE_BOOL_OR(param)) {
762 if (!strcmp(param->value, YES))
763 SET_PSTATE_REPLY_OPTIONAL(param);
764 /*
765 * Required for gPXE iSCSI boot client
766 */
767 if (!strcmp(param->name, IMMEDIATEDATA))
768 SET_PSTATE_REPLY_OPTIONAL(param);
769 } else if (IS_TYPE_NUMBER(param)) {
770 if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
771 SET_PSTATE_REPLY_OPTIONAL(param);
772 /*
773 * The GlobalSAN iSCSI Initiator for MacOSX does
774 * not respond to MaxBurstLength, FirstBurstLength,
775 * DefaultTime2Wait or DefaultTime2Retain parameter keys.
776 * So, we set them to 'reply optional' here, and assume the
777 * the defaults from iscsi_parameters.h if the initiator
778 * is not RFC compliant and the keys are not negotiated.
779 */
780 if (!strcmp(param->name, MAXBURSTLENGTH))
781 SET_PSTATE_REPLY_OPTIONAL(param);
782 if (!strcmp(param->name, FIRSTBURSTLENGTH))
783 SET_PSTATE_REPLY_OPTIONAL(param);
784 if (!strcmp(param->name, DEFAULTTIME2WAIT))
785 SET_PSTATE_REPLY_OPTIONAL(param);
786 if (!strcmp(param->name, DEFAULTTIME2RETAIN))
787 SET_PSTATE_REPLY_OPTIONAL(param);
788 /*
789 * Required for gPXE iSCSI boot client
790 */
791 if (!strcmp(param->name, MAXCONNECTIONS))
792 SET_PSTATE_REPLY_OPTIONAL(param);
793 } else if (IS_PHASE_DECLARATIVE(param))
794 SET_PSTATE_REPLY_OPTIONAL(param);
795 }
796
797 static int iscsi_check_boolean_value(struct iscsi_param *param, char *value)
798 {
799 if (strcmp(value, YES) && strcmp(value, NO)) {
800 pr_err("Illegal value for \"%s\", must be either"
801 " \"%s\" or \"%s\".\n", param->name, YES, NO);
802 return -1;
803 }
804
805 return 0;
806 }
807
808 static int iscsi_check_numerical_value(struct iscsi_param *param, char *value_ptr)
809 {
810 char *tmpptr;
811 int value = 0;
812
813 value = simple_strtoul(value_ptr, &tmpptr, 0);
814
815 if (IS_TYPERANGE_0_TO_2(param)) {
816 if ((value < 0) || (value > 2)) {
817 pr_err("Illegal value for \"%s\", must be"
818 " between 0 and 2.\n", param->name);
819 return -1;
820 }
821 return 0;
822 }
823 if (IS_TYPERANGE_0_TO_3600(param)) {
824 if ((value < 0) || (value > 3600)) {
825 pr_err("Illegal value for \"%s\", must be"
826 " between 0 and 3600.\n", param->name);
827 return -1;
828 }
829 return 0;
830 }
831 if (IS_TYPERANGE_0_TO_32767(param)) {
832 if ((value < 0) || (value > 32767)) {
833 pr_err("Illegal value for \"%s\", must be"
834 " between 0 and 32767.\n", param->name);
835 return -1;
836 }
837 return 0;
838 }
839 if (IS_TYPERANGE_0_TO_65535(param)) {
840 if ((value < 0) || (value > 65535)) {
841 pr_err("Illegal value for \"%s\", must be"
842 " between 0 and 65535.\n", param->name);
843 return -1;
844 }
845 return 0;
846 }
847 if (IS_TYPERANGE_1_TO_65535(param)) {
848 if ((value < 1) || (value > 65535)) {
849 pr_err("Illegal value for \"%s\", must be"
850 " between 1 and 65535.\n", param->name);
851 return -1;
852 }
853 return 0;
854 }
855 if (IS_TYPERANGE_2_TO_3600(param)) {
856 if ((value < 2) || (value > 3600)) {
857 pr_err("Illegal value for \"%s\", must be"
858 " between 2 and 3600.\n", param->name);
859 return -1;
860 }
861 return 0;
862 }
863 if (IS_TYPERANGE_512_TO_16777215(param)) {
864 if ((value < 512) || (value > 16777215)) {
865 pr_err("Illegal value for \"%s\", must be"
866 " between 512 and 16777215.\n", param->name);
867 return -1;
868 }
869 return 0;
870 }
871
872 return 0;
873 }
874
875 static int iscsi_check_numerical_range_value(struct iscsi_param *param, char *value)
876 {
877 char *left_val_ptr = NULL, *right_val_ptr = NULL;
878 char *tilde_ptr = NULL;
879 u32 left_val, right_val, local_left_val;
880
881 if (strcmp(param->name, IFMARKINT) &&
882 strcmp(param->name, OFMARKINT)) {
883 pr_err("Only parameters \"%s\" or \"%s\" may contain a"
884 " numerical range value.\n", IFMARKINT, OFMARKINT);
885 return -1;
886 }
887
888 if (IS_PSTATE_PROPOSER(param))
889 return 0;
890
891 tilde_ptr = strchr(value, '~');
892 if (!tilde_ptr) {
893 pr_err("Unable to locate numerical range indicator"
894 " \"~\" for \"%s\".\n", param->name);
895 return -1;
896 }
897 *tilde_ptr = '\0';
898
899 left_val_ptr = value;
900 right_val_ptr = value + strlen(left_val_ptr) + 1;
901
902 if (iscsi_check_numerical_value(param, left_val_ptr) < 0)
903 return -1;
904 if (iscsi_check_numerical_value(param, right_val_ptr) < 0)
905 return -1;
906
907 left_val = simple_strtoul(left_val_ptr, NULL, 0);
908 right_val = simple_strtoul(right_val_ptr, NULL, 0);
909 *tilde_ptr = '~';
910
911 if (right_val < left_val) {
912 pr_err("Numerical range for parameter \"%s\" contains"
913 " a right value which is less than the left.\n",
914 param->name);
915 return -1;
916 }
917
918 /*
919 * For now, enforce reasonable defaults for [I,O]FMarkInt.
920 */
921 tilde_ptr = strchr(param->value, '~');
922 if (!tilde_ptr) {
923 pr_err("Unable to locate numerical range indicator"
924 " \"~\" for \"%s\".\n", param->name);
925 return -1;
926 }
927 *tilde_ptr = '\0';
928
929 left_val_ptr = param->value;
930 right_val_ptr = param->value + strlen(left_val_ptr) + 1;
931
932 local_left_val = simple_strtoul(left_val_ptr, NULL, 0);
933 *tilde_ptr = '~';
934
935 if (param->set_param) {
936 if ((left_val < local_left_val) ||
937 (right_val < local_left_val)) {
938 pr_err("Passed value range \"%u~%u\" is below"
939 " minimum left value \"%u\" for key \"%s\","
940 " rejecting.\n", left_val, right_val,
941 local_left_val, param->name);
942 return -1;
943 }
944 } else {
945 if ((left_val < local_left_val) &&
946 (right_val < local_left_val)) {
947 pr_err("Received value range \"%u~%u\" is"
948 " below minimum left value \"%u\" for key"
949 " \"%s\", rejecting.\n", left_val, right_val,
950 local_left_val, param->name);
951 SET_PSTATE_REJECT(param);
952 if (iscsi_update_param_value(param, REJECT) < 0)
953 return -1;
954 }
955 }
956
957 return 0;
958 }
959
960 static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value)
961 {
962 if (IS_PSTATE_PROPOSER(param))
963 return 0;
964
965 if (IS_TYPERANGE_AUTH_PARAM(param)) {
966 if (strcmp(value, KRB5) && strcmp(value, SPKM1) &&
967 strcmp(value, SPKM2) && strcmp(value, SRP) &&
968 strcmp(value, CHAP) && strcmp(value, NONE)) {
969 pr_err("Illegal value for \"%s\", must be"
970 " \"%s\", \"%s\", \"%s\", \"%s\", \"%s\""
971 " or \"%s\".\n", param->name, KRB5,
972 SPKM1, SPKM2, SRP, CHAP, NONE);
973 return -1;
974 }
975 }
976 if (IS_TYPERANGE_DIGEST_PARAM(param)) {
977 if (strcmp(value, CRC32C) && strcmp(value, NONE)) {
978 pr_err("Illegal value for \"%s\", must be"
979 " \"%s\" or \"%s\".\n", param->name,
980 CRC32C, NONE);
981 return -1;
982 }
983 }
984 if (IS_TYPERANGE_SESSIONTYPE(param)) {
985 if (strcmp(value, DISCOVERY) && strcmp(value, NORMAL)) {
986 pr_err("Illegal value for \"%s\", must be"
987 " \"%s\" or \"%s\".\n", param->name,
988 DISCOVERY, NORMAL);
989 return -1;
990 }
991 }
992
993 return 0;
994 }
995
996 /*
997 * This function is used to pick a value range number, currently just
998 * returns the lesser of both right values.
999 */
1000 static char *iscsi_get_value_from_number_range(
1001 struct iscsi_param *param,
1002 char *value)
1003 {
1004 char *end_ptr, *tilde_ptr1 = NULL, *tilde_ptr2 = NULL;
1005 u32 acceptor_right_value, proposer_right_value;
1006
1007 tilde_ptr1 = strchr(value, '~');
1008 if (!tilde_ptr1)
1009 return NULL;
1010 *tilde_ptr1++ = '\0';
1011 proposer_right_value = simple_strtoul(tilde_ptr1, &end_ptr, 0);
1012
1013 tilde_ptr2 = strchr(param->value, '~');
1014 if (!tilde_ptr2)
1015 return NULL;
1016 *tilde_ptr2++ = '\0';
1017 acceptor_right_value = simple_strtoul(tilde_ptr2, &end_ptr, 0);
1018
1019 return (acceptor_right_value >= proposer_right_value) ?
1020 tilde_ptr1 : tilde_ptr2;
1021 }
1022
1023 static char *iscsi_check_valuelist_for_support(
1024 struct iscsi_param *param,
1025 char *value)
1026 {
1027 char *tmp1 = NULL, *tmp2 = NULL;
1028 char *acceptor_values = NULL, *proposer_values = NULL;
1029
1030 acceptor_values = param->value;
1031 proposer_values = value;
1032
1033 do {
1034 if (!proposer_values)
1035 return NULL;
1036 tmp1 = strchr(proposer_values, ',');
1037 if (tmp1)
1038 *tmp1 = '\0';
1039 acceptor_values = param->value;
1040 do {
1041 if (!acceptor_values) {
1042 if (tmp1)
1043 *tmp1 = ',';
1044 return NULL;
1045 }
1046 tmp2 = strchr(acceptor_values, ',');
1047 if (tmp2)
1048 *tmp2 = '\0';
1049 if (!strcmp(acceptor_values, proposer_values)) {
1050 if (tmp2)
1051 *tmp2 = ',';
1052 goto out;
1053 }
1054 if (tmp2)
1055 *tmp2++ = ',';
1056
1057 acceptor_values = tmp2;
1058 } while (acceptor_values);
1059 if (tmp1)
1060 *tmp1++ = ',';
1061 proposer_values = tmp1;
1062 } while (proposer_values);
1063
1064 out:
1065 return proposer_values;
1066 }
1067
1068 static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value,
1069 struct iscsi_conn *conn)
1070 {
1071 u8 acceptor_boolean_value = 0, proposer_boolean_value = 0;
1072 char *negoitated_value = NULL;
1073
1074 if (IS_PSTATE_ACCEPTOR(param)) {
1075 pr_err("Received key \"%s\" twice, protocol error.\n",
1076 param->name);
1077 return -1;
1078 }
1079
1080 if (IS_PSTATE_REJECT(param))
1081 return 0;
1082
1083 if (IS_TYPE_BOOL_AND(param)) {
1084 if (!strcmp(value, YES))
1085 proposer_boolean_value = 1;
1086 if (!strcmp(param->value, YES))
1087 acceptor_boolean_value = 1;
1088 if (acceptor_boolean_value && proposer_boolean_value)
1089 do {} while (0);
1090 else {
1091 if (iscsi_update_param_value(param, NO) < 0)
1092 return -1;
1093 if (!proposer_boolean_value)
1094 SET_PSTATE_REPLY_OPTIONAL(param);
1095 }
1096 } else if (IS_TYPE_BOOL_OR(param)) {
1097 if (!strcmp(value, YES))
1098 proposer_boolean_value = 1;
1099 if (!strcmp(param->value, YES))
1100 acceptor_boolean_value = 1;
1101 if (acceptor_boolean_value || proposer_boolean_value) {
1102 if (iscsi_update_param_value(param, YES) < 0)
1103 return -1;
1104 if (proposer_boolean_value)
1105 SET_PSTATE_REPLY_OPTIONAL(param);
1106 }
1107 } else if (IS_TYPE_NUMBER(param)) {
1108 char *tmpptr, buf[10];
1109 u32 acceptor_value = simple_strtoul(param->value, &tmpptr, 0);
1110 u32 proposer_value = simple_strtoul(value, &tmpptr, 0);
1111
1112 memset(buf, 0, 10);
1113
1114 if (!strcmp(param->name, MAXCONNECTIONS) ||
1115 !strcmp(param->name, MAXBURSTLENGTH) ||
1116 !strcmp(param->name, FIRSTBURSTLENGTH) ||
1117 !strcmp(param->name, MAXOUTSTANDINGR2T) ||
1118 !strcmp(param->name, DEFAULTTIME2RETAIN) ||
1119 !strcmp(param->name, ERRORRECOVERYLEVEL)) {
1120 if (proposer_value > acceptor_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 if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
1130 if (acceptor_value > proposer_value) {
1131 sprintf(buf, "%u", acceptor_value);
1132 if (iscsi_update_param_value(param,
1133 &buf[0]) < 0)
1134 return -1;
1135 } else {
1136 if (iscsi_update_param_value(param, value) < 0)
1137 return -1;
1138 }
1139 } else {
1140 if (iscsi_update_param_value(param, value) < 0)
1141 return -1;
1142 }
1143
1144 if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
1145 struct iscsi_param *param_mxdsl;
1146 unsigned long long tmp;
1147 int rc;
1148
1149 rc = strict_strtoull(param->value, 0, &tmp);
1150 if (rc < 0)
1151 return -1;
1152
1153 conn->conn_ops->MaxRecvDataSegmentLength = tmp;
1154 pr_debug("Saving op->MaxRecvDataSegmentLength from"
1155 " original initiator received value: %u\n",
1156 conn->conn_ops->MaxRecvDataSegmentLength);
1157
1158 param_mxdsl = iscsi_find_param_from_key(
1159 MAXXMITDATASEGMENTLENGTH,
1160 conn->param_list);
1161 if (!param_mxdsl)
1162 return -1;
1163
1164 rc = iscsi_update_param_value(param,
1165 param_mxdsl->value);
1166 if (rc < 0)
1167 return -1;
1168
1169 pr_debug("Updated %s to target MXDSL value: %s\n",
1170 param->name, param->value);
1171 }
1172
1173 } else if (IS_TYPE_NUMBER_RANGE(param)) {
1174 negoitated_value = iscsi_get_value_from_number_range(
1175 param, value);
1176 if (!negoitated_value)
1177 return -1;
1178 if (iscsi_update_param_value(param, negoitated_value) < 0)
1179 return -1;
1180 } else if (IS_TYPE_VALUE_LIST(param)) {
1181 negoitated_value = iscsi_check_valuelist_for_support(
1182 param, value);
1183 if (!negoitated_value) {
1184 pr_err("Proposer's value list \"%s\" contains"
1185 " no valid values from Acceptor's value list"
1186 " \"%s\".\n", value, param->value);
1187 return -1;
1188 }
1189 if (iscsi_update_param_value(param, negoitated_value) < 0)
1190 return -1;
1191 } else if (IS_PHASE_DECLARATIVE(param)) {
1192 if (iscsi_update_param_value(param, value) < 0)
1193 return -1;
1194 SET_PSTATE_REPLY_OPTIONAL(param);
1195 }
1196
1197 return 0;
1198 }
1199
1200 static int iscsi_check_proposer_state(struct iscsi_param *param, char *value)
1201 {
1202 if (IS_PSTATE_RESPONSE_GOT(param)) {
1203 pr_err("Received key \"%s\" twice, protocol error.\n",
1204 param->name);
1205 return -1;
1206 }
1207
1208 if (IS_TYPE_NUMBER_RANGE(param)) {
1209 u32 left_val = 0, right_val = 0, recieved_value = 0;
1210 char *left_val_ptr = NULL, *right_val_ptr = NULL;
1211 char *tilde_ptr = NULL;
1212
1213 if (!strcmp(value, IRRELEVANT) || !strcmp(value, REJECT)) {
1214 if (iscsi_update_param_value(param, value) < 0)
1215 return -1;
1216 return 0;
1217 }
1218
1219 tilde_ptr = strchr(value, '~');
1220 if (tilde_ptr) {
1221 pr_err("Illegal \"~\" in response for \"%s\".\n",
1222 param->name);
1223 return -1;
1224 }
1225 tilde_ptr = strchr(param->value, '~');
1226 if (!tilde_ptr) {
1227 pr_err("Unable to locate numerical range"
1228 " indicator \"~\" for \"%s\".\n", param->name);
1229 return -1;
1230 }
1231 *tilde_ptr = '\0';
1232
1233 left_val_ptr = param->value;
1234 right_val_ptr = param->value + strlen(left_val_ptr) + 1;
1235 left_val = simple_strtoul(left_val_ptr, NULL, 0);
1236 right_val = simple_strtoul(right_val_ptr, NULL, 0);
1237 recieved_value = simple_strtoul(value, NULL, 0);
1238
1239 *tilde_ptr = '~';
1240
1241 if ((recieved_value < left_val) ||
1242 (recieved_value > right_val)) {
1243 pr_err("Illegal response \"%s=%u\", value must"
1244 " be between %u and %u.\n", param->name,
1245 recieved_value, left_val, right_val);
1246 return -1;
1247 }
1248 } else if (IS_TYPE_VALUE_LIST(param)) {
1249 char *comma_ptr = NULL, *tmp_ptr = NULL;
1250
1251 comma_ptr = strchr(value, ',');
1252 if (comma_ptr) {
1253 pr_err("Illegal \",\" in response for \"%s\".\n",
1254 param->name);
1255 return -1;
1256 }
1257
1258 tmp_ptr = iscsi_check_valuelist_for_support(param, value);
1259 if (!tmp_ptr)
1260 return -1;
1261 }
1262
1263 if (iscsi_update_param_value(param, value) < 0)
1264 return -1;
1265
1266 return 0;
1267 }
1268
1269 static int iscsi_check_value(struct iscsi_param *param, char *value)
1270 {
1271 char *comma_ptr = NULL;
1272
1273 if (!strcmp(value, REJECT)) {
1274 if (!strcmp(param->name, IFMARKINT) ||
1275 !strcmp(param->name, OFMARKINT)) {
1276 /*
1277 * Reject is not fatal for [I,O]FMarkInt, and causes
1278 * [I,O]FMarker to be reset to No. (See iSCSI v20 A.3.2)
1279 */
1280 SET_PSTATE_REJECT(param);
1281 return 0;
1282 }
1283 pr_err("Received %s=%s\n", param->name, value);
1284 return -1;
1285 }
1286 if (!strcmp(value, IRRELEVANT)) {
1287 pr_debug("Received %s=%s\n", param->name, value);
1288 SET_PSTATE_IRRELEVANT(param);
1289 return 0;
1290 }
1291 if (!strcmp(value, NOTUNDERSTOOD)) {
1292 if (!IS_PSTATE_PROPOSER(param)) {
1293 pr_err("Received illegal offer %s=%s\n",
1294 param->name, value);
1295 return -1;
1296 }
1297
1298 /* #warning FIXME: Add check for X-ExtensionKey here */
1299 pr_err("Standard iSCSI key \"%s\" cannot be answered"
1300 " with \"%s\", protocol error.\n", param->name, value);
1301 return -1;
1302 }
1303
1304 do {
1305 comma_ptr = NULL;
1306 comma_ptr = strchr(value, ',');
1307
1308 if (comma_ptr && !IS_TYPE_VALUE_LIST(param)) {
1309 pr_err("Detected value separator \",\", but"
1310 " key \"%s\" does not allow a value list,"
1311 " protocol error.\n", param->name);
1312 return -1;
1313 }
1314 if (comma_ptr)
1315 *comma_ptr = '\0';
1316
1317 if (strlen(value) > VALUE_MAXLEN) {
1318 pr_err("Value for key \"%s\" exceeds %d,"
1319 " protocol error.\n", param->name,
1320 VALUE_MAXLEN);
1321 return -1;
1322 }
1323
1324 if (IS_TYPE_BOOL_AND(param) || IS_TYPE_BOOL_OR(param)) {
1325 if (iscsi_check_boolean_value(param, value) < 0)
1326 return -1;
1327 } else if (IS_TYPE_NUMBER(param)) {
1328 if (iscsi_check_numerical_value(param, value) < 0)
1329 return -1;
1330 } else if (IS_TYPE_NUMBER_RANGE(param)) {
1331 if (iscsi_check_numerical_range_value(param, value) < 0)
1332 return -1;
1333 } else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) {
1334 if (iscsi_check_string_or_list_value(param, value) < 0)
1335 return -1;
1336 } else {
1337 pr_err("Huh? 0x%02x\n", param->type);
1338 return -1;
1339 }
1340
1341 if (comma_ptr)
1342 *comma_ptr++ = ',';
1343
1344 value = comma_ptr;
1345 } while (value);
1346
1347 return 0;
1348 }
1349
1350 static struct iscsi_param *__iscsi_check_key(
1351 char *key,
1352 int sender,
1353 struct iscsi_param_list *param_list)
1354 {
1355 struct iscsi_param *param;
1356
1357 if (strlen(key) > KEY_MAXLEN) {
1358 pr_err("Length of key name \"%s\" exceeds %d.\n",
1359 key, KEY_MAXLEN);
1360 return NULL;
1361 }
1362
1363 param = iscsi_find_param_from_key(key, param_list);
1364 if (!param)
1365 return NULL;
1366
1367 if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
1368 pr_err("Key \"%s\" may not be sent to %s,"
1369 " protocol error.\n", param->name,
1370 (sender & SENDER_RECEIVER) ? "target" : "initiator");
1371 return NULL;
1372 }
1373
1374 if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
1375 pr_err("Key \"%s\" may not be sent to %s,"
1376 " protocol error.\n", param->name,
1377 (sender & SENDER_RECEIVER) ? "initiator" : "target");
1378 return NULL;
1379 }
1380
1381 return param;
1382 }
1383
1384 static struct iscsi_param *iscsi_check_key(
1385 char *key,
1386 int phase,
1387 int sender,
1388 struct iscsi_param_list *param_list)
1389 {
1390 struct iscsi_param *param;
1391 /*
1392 * Key name length must not exceed 63 bytes. (See iSCSI v20 5.1)
1393 */
1394 if (strlen(key) > KEY_MAXLEN) {
1395 pr_err("Length of key name \"%s\" exceeds %d.\n",
1396 key, KEY_MAXLEN);
1397 return NULL;
1398 }
1399
1400 param = iscsi_find_param_from_key(key, param_list);
1401 if (!param)
1402 return NULL;
1403
1404 if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
1405 pr_err("Key \"%s\" may not be sent to %s,"
1406 " protocol error.\n", param->name,
1407 (sender & SENDER_RECEIVER) ? "target" : "initiator");
1408 return NULL;
1409 }
1410 if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
1411 pr_err("Key \"%s\" may not be sent to %s,"
1412 " protocol error.\n", param->name,
1413 (sender & SENDER_RECEIVER) ? "initiator" : "target");
1414 return NULL;
1415 }
1416
1417 if (IS_PSTATE_ACCEPTOR(param)) {
1418 pr_err("Key \"%s\" received twice, protocol error.\n",
1419 key);
1420 return NULL;
1421 }
1422
1423 if (!phase)
1424 return param;
1425
1426 if (!(param->phase & phase)) {
1427 pr_err("Key \"%s\" may not be negotiated during ",
1428 param->name);
1429 switch (phase) {
1430 case PHASE_SECURITY:
1431 pr_debug("Security phase.\n");
1432 break;
1433 case PHASE_OPERATIONAL:
1434 pr_debug("Operational phase.\n");
1435 default:
1436 pr_debug("Unknown phase.\n");
1437 }
1438 return NULL;
1439 }
1440
1441 return param;
1442 }
1443
1444 static int iscsi_enforce_integrity_rules(
1445 u8 phase,
1446 struct iscsi_param_list *param_list)
1447 {
1448 char *tmpptr;
1449 u8 DataSequenceInOrder = 0;
1450 u8 ErrorRecoveryLevel = 0, SessionType = 0;
1451 u8 IFMarker = 0, OFMarker = 0;
1452 u8 IFMarkInt_Reject = 1, OFMarkInt_Reject = 1;
1453 u32 FirstBurstLength = 0, MaxBurstLength = 0;
1454 struct iscsi_param *param = NULL;
1455
1456 list_for_each_entry(param, &param_list->param_list, p_list) {
1457 if (!(param->phase & phase))
1458 continue;
1459 if (!strcmp(param->name, SESSIONTYPE))
1460 if (!strcmp(param->value, NORMAL))
1461 SessionType = 1;
1462 if (!strcmp(param->name, ERRORRECOVERYLEVEL))
1463 ErrorRecoveryLevel = simple_strtoul(param->value,
1464 &tmpptr, 0);
1465 if (!strcmp(param->name, DATASEQUENCEINORDER))
1466 if (!strcmp(param->value, YES))
1467 DataSequenceInOrder = 1;
1468 if (!strcmp(param->name, MAXBURSTLENGTH))
1469 MaxBurstLength = simple_strtoul(param->value,
1470 &tmpptr, 0);
1471 if (!strcmp(param->name, IFMARKER))
1472 if (!strcmp(param->value, YES))
1473 IFMarker = 1;
1474 if (!strcmp(param->name, OFMARKER))
1475 if (!strcmp(param->value, YES))
1476 OFMarker = 1;
1477 if (!strcmp(param->name, IFMARKINT))
1478 if (!strcmp(param->value, REJECT))
1479 IFMarkInt_Reject = 1;
1480 if (!strcmp(param->name, OFMARKINT))
1481 if (!strcmp(param->value, REJECT))
1482 OFMarkInt_Reject = 1;
1483 }
1484
1485 list_for_each_entry(param, &param_list->param_list, p_list) {
1486 if (!(param->phase & phase))
1487 continue;
1488 if (!SessionType && (!IS_PSTATE_ACCEPTOR(param) &&
1489 (strcmp(param->name, IFMARKER) &&
1490 strcmp(param->name, OFMARKER) &&
1491 strcmp(param->name, IFMARKINT) &&
1492 strcmp(param->name, OFMARKINT))))
1493 continue;
1494 if (!strcmp(param->name, MAXOUTSTANDINGR2T) &&
1495 DataSequenceInOrder && (ErrorRecoveryLevel > 0)) {
1496 if (strcmp(param->value, "1")) {
1497 if (iscsi_update_param_value(param, "1") < 0)
1498 return -1;
1499 pr_debug("Reset \"%s\" to \"%s\".\n",
1500 param->name, param->value);
1501 }
1502 }
1503 if (!strcmp(param->name, MAXCONNECTIONS) && !SessionType) {
1504 if (strcmp(param->value, "1")) {
1505 if (iscsi_update_param_value(param, "1") < 0)
1506 return -1;
1507 pr_debug("Reset \"%s\" to \"%s\".\n",
1508 param->name, param->value);
1509 }
1510 }
1511 if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
1512 FirstBurstLength = simple_strtoul(param->value,
1513 &tmpptr, 0);
1514 if (FirstBurstLength > MaxBurstLength) {
1515 char tmpbuf[10];
1516 memset(tmpbuf, 0, 10);
1517 sprintf(tmpbuf, "%u", MaxBurstLength);
1518 if (iscsi_update_param_value(param, tmpbuf))
1519 return -1;
1520 pr_debug("Reset \"%s\" to \"%s\".\n",
1521 param->name, param->value);
1522 }
1523 }
1524 if (!strcmp(param->name, IFMARKER) && IFMarkInt_Reject) {
1525 if (iscsi_update_param_value(param, NO) < 0)
1526 return -1;
1527 IFMarker = 0;
1528 pr_debug("Reset \"%s\" to \"%s\".\n",
1529 param->name, param->value);
1530 }
1531 if (!strcmp(param->name, OFMARKER) && OFMarkInt_Reject) {
1532 if (iscsi_update_param_value(param, NO) < 0)
1533 return -1;
1534 OFMarker = 0;
1535 pr_debug("Reset \"%s\" to \"%s\".\n",
1536 param->name, param->value);
1537 }
1538 if (!strcmp(param->name, IFMARKINT) && !IFMarker) {
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 if (!strcmp(param->name, OFMARKINT) && !OFMarker) {
1548 if (!strcmp(param->value, REJECT))
1549 continue;
1550 param->state &= ~PSTATE_NEGOTIATE;
1551 if (iscsi_update_param_value(param, IRRELEVANT) < 0)
1552 return -1;
1553 pr_debug("Reset \"%s\" to \"%s\".\n",
1554 param->name, param->value);
1555 }
1556 }
1557
1558 return 0;
1559 }
1560
1561 int iscsi_decode_text_input(
1562 u8 phase,
1563 u8 sender,
1564 char *textbuf,
1565 u32 length,
1566 struct iscsi_conn *conn)
1567 {
1568 struct iscsi_param_list *param_list = conn->param_list;
1569 char *tmpbuf, *start = NULL, *end = NULL;
1570
1571 tmpbuf = kzalloc(length + 1, GFP_KERNEL);
1572 if (!tmpbuf) {
1573 pr_err("Unable to allocate memory for tmpbuf.\n");
1574 return -1;
1575 }
1576
1577 memcpy(tmpbuf, textbuf, length);
1578 tmpbuf[length] = '\0';
1579 start = tmpbuf;
1580 end = (start + length);
1581
1582 while (start < end) {
1583 char *key, *value;
1584 struct iscsi_param *param;
1585
1586 if (iscsi_extract_key_value(start, &key, &value) < 0) {
1587 kfree(tmpbuf);
1588 return -1;
1589 }
1590
1591 pr_debug("Got key: %s=%s\n", key, value);
1592
1593 if (phase & PHASE_SECURITY) {
1594 if (iscsi_check_for_auth_key(key) > 0) {
1595 char *tmpptr = key + strlen(key);
1596 *tmpptr = '=';
1597 kfree(tmpbuf);
1598 return 1;
1599 }
1600 }
1601
1602 param = iscsi_check_key(key, phase, sender, param_list);
1603 if (!param) {
1604 if (iscsi_add_notunderstood_response(key,
1605 value, param_list) < 0) {
1606 kfree(tmpbuf);
1607 return -1;
1608 }
1609 start += strlen(key) + strlen(value) + 2;
1610 continue;
1611 }
1612 if (iscsi_check_value(param, value) < 0) {
1613 kfree(tmpbuf);
1614 return -1;
1615 }
1616
1617 start += strlen(key) + strlen(value) + 2;
1618
1619 if (IS_PSTATE_PROPOSER(param)) {
1620 if (iscsi_check_proposer_state(param, value) < 0) {
1621 kfree(tmpbuf);
1622 return -1;
1623 }
1624 SET_PSTATE_RESPONSE_GOT(param);
1625 } else {
1626 if (iscsi_check_acceptor_state(param, value, conn) < 0) {
1627 kfree(tmpbuf);
1628 return -1;
1629 }
1630 SET_PSTATE_ACCEPTOR(param);
1631 }
1632 }
1633
1634 kfree(tmpbuf);
1635 return 0;
1636 }
1637
1638 int iscsi_encode_text_output(
1639 u8 phase,
1640 u8 sender,
1641 char *textbuf,
1642 u32 *length,
1643 struct iscsi_param_list *param_list)
1644 {
1645 char *output_buf = NULL;
1646 struct iscsi_extra_response *er;
1647 struct iscsi_param *param;
1648
1649 output_buf = textbuf + *length;
1650
1651 if (iscsi_enforce_integrity_rules(phase, param_list) < 0)
1652 return -1;
1653
1654 list_for_each_entry(param, &param_list->param_list, p_list) {
1655 if (!(param->sender & sender))
1656 continue;
1657 if (IS_PSTATE_ACCEPTOR(param) &&
1658 !IS_PSTATE_RESPONSE_SENT(param) &&
1659 !IS_PSTATE_REPLY_OPTIONAL(param) &&
1660 (param->phase & phase)) {
1661 *length += sprintf(output_buf, "%s=%s",
1662 param->name, param->value);
1663 *length += 1;
1664 output_buf = textbuf + *length;
1665 SET_PSTATE_RESPONSE_SENT(param);
1666 pr_debug("Sending key: %s=%s\n",
1667 param->name, param->value);
1668 continue;
1669 }
1670 if (IS_PSTATE_NEGOTIATE(param) &&
1671 !IS_PSTATE_ACCEPTOR(param) &&
1672 !IS_PSTATE_PROPOSER(param) &&
1673 (param->phase & phase)) {
1674 *length += sprintf(output_buf, "%s=%s",
1675 param->name, param->value);
1676 *length += 1;
1677 output_buf = textbuf + *length;
1678 SET_PSTATE_PROPOSER(param);
1679 iscsi_check_proposer_for_optional_reply(param);
1680 pr_debug("Sending key: %s=%s\n",
1681 param->name, param->value);
1682 }
1683 }
1684
1685 list_for_each_entry(er, &param_list->extra_response_list, er_list) {
1686 *length += sprintf(output_buf, "%s=%s", er->key, er->value);
1687 *length += 1;
1688 output_buf = textbuf + *length;
1689 pr_debug("Sending key: %s=%s\n", er->key, er->value);
1690 }
1691 iscsi_release_extra_responses(param_list);
1692
1693 return 0;
1694 }
1695
1696 int iscsi_check_negotiated_keys(struct iscsi_param_list *param_list)
1697 {
1698 int ret = 0;
1699 struct iscsi_param *param;
1700
1701 list_for_each_entry(param, &param_list->param_list, p_list) {
1702 if (IS_PSTATE_NEGOTIATE(param) &&
1703 IS_PSTATE_PROPOSER(param) &&
1704 !IS_PSTATE_RESPONSE_GOT(param) &&
1705 !IS_PSTATE_REPLY_OPTIONAL(param) &&
1706 !IS_PHASE_DECLARATIVE(param)) {
1707 pr_err("No response for proposed key \"%s\".\n",
1708 param->name);
1709 ret = -1;
1710 }
1711 }
1712
1713 return ret;
1714 }
1715
1716 int iscsi_change_param_value(
1717 char *keyvalue,
1718 struct iscsi_param_list *param_list,
1719 int check_key)
1720 {
1721 char *key = NULL, *value = NULL;
1722 struct iscsi_param *param;
1723 int sender = 0;
1724
1725 if (iscsi_extract_key_value(keyvalue, &key, &value) < 0)
1726 return -1;
1727
1728 if (!check_key) {
1729 param = __iscsi_check_key(keyvalue, sender, param_list);
1730 if (!param)
1731 return -1;
1732 } else {
1733 param = iscsi_check_key(keyvalue, 0, sender, param_list);
1734 if (!param)
1735 return -1;
1736
1737 param->set_param = 1;
1738 if (iscsi_check_value(param, value) < 0) {
1739 param->set_param = 0;
1740 return -1;
1741 }
1742 param->set_param = 0;
1743 }
1744
1745 if (iscsi_update_param_value(param, value) < 0)
1746 return -1;
1747
1748 return 0;
1749 }
1750
1751 void iscsi_set_connection_parameters(
1752 struct iscsi_conn_ops *ops,
1753 struct iscsi_param_list *param_list)
1754 {
1755 char *tmpptr;
1756 struct iscsi_param *param;
1757
1758 pr_debug("---------------------------------------------------"
1759 "---------------\n");
1760 list_for_each_entry(param, &param_list->param_list, p_list) {
1761 /*
1762 * Special case to set MAXXMITDATASEGMENTLENGTH from the
1763 * target requested MaxRecvDataSegmentLength, even though
1764 * this key is not sent over the wire.
1765 */
1766 if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
1767 ops->MaxXmitDataSegmentLength =
1768 simple_strtoul(param->value, &tmpptr, 0);
1769 pr_debug("MaxXmitDataSegmentLength: %s\n",
1770 param->value);
1771 }
1772
1773 if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
1774 continue;
1775 if (!strcmp(param->name, AUTHMETHOD)) {
1776 pr_debug("AuthMethod: %s\n",
1777 param->value);
1778 } else if (!strcmp(param->name, HEADERDIGEST)) {
1779 ops->HeaderDigest = !strcmp(param->value, CRC32C);
1780 pr_debug("HeaderDigest: %s\n",
1781 param->value);
1782 } else if (!strcmp(param->name, DATADIGEST)) {
1783 ops->DataDigest = !strcmp(param->value, CRC32C);
1784 pr_debug("DataDigest: %s\n",
1785 param->value);
1786 } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
1787 /*
1788 * At this point iscsi_check_acceptor_state() will have
1789 * set ops->MaxRecvDataSegmentLength from the original
1790 * initiator provided value.
1791 */
1792 pr_debug("MaxRecvDataSegmentLength: %u\n",
1793 ops->MaxRecvDataSegmentLength);
1794 } else if (!strcmp(param->name, OFMARKER)) {
1795 ops->OFMarker = !strcmp(param->value, YES);
1796 pr_debug("OFMarker: %s\n",
1797 param->value);
1798 } else if (!strcmp(param->name, IFMARKER)) {
1799 ops->IFMarker = !strcmp(param->value, YES);
1800 pr_debug("IFMarker: %s\n",
1801 param->value);
1802 } else if (!strcmp(param->name, OFMARKINT)) {
1803 ops->OFMarkInt =
1804 simple_strtoul(param->value, &tmpptr, 0);
1805 pr_debug("OFMarkInt: %s\n",
1806 param->value);
1807 } else if (!strcmp(param->name, IFMARKINT)) {
1808 ops->IFMarkInt =
1809 simple_strtoul(param->value, &tmpptr, 0);
1810 pr_debug("IFMarkInt: %s\n",
1811 param->value);
1812 }
1813 }
1814 pr_debug("----------------------------------------------------"
1815 "--------------\n");
1816 }
1817
1818 void iscsi_set_session_parameters(
1819 struct iscsi_sess_ops *ops,
1820 struct iscsi_param_list *param_list,
1821 int leading)
1822 {
1823 char *tmpptr;
1824 struct iscsi_param *param;
1825
1826 pr_debug("----------------------------------------------------"
1827 "--------------\n");
1828 list_for_each_entry(param, &param_list->param_list, p_list) {
1829 if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
1830 continue;
1831 if (!strcmp(param->name, INITIATORNAME)) {
1832 if (!param->value)
1833 continue;
1834 if (leading)
1835 snprintf(ops->InitiatorName,
1836 sizeof(ops->InitiatorName),
1837 "%s", param->value);
1838 pr_debug("InitiatorName: %s\n",
1839 param->value);
1840 } else if (!strcmp(param->name, INITIATORALIAS)) {
1841 if (!param->value)
1842 continue;
1843 snprintf(ops->InitiatorAlias,
1844 sizeof(ops->InitiatorAlias),
1845 "%s", param->value);
1846 pr_debug("InitiatorAlias: %s\n",
1847 param->value);
1848 } else if (!strcmp(param->name, TARGETNAME)) {
1849 if (!param->value)
1850 continue;
1851 if (leading)
1852 snprintf(ops->TargetName,
1853 sizeof(ops->TargetName),
1854 "%s", param->value);
1855 pr_debug("TargetName: %s\n",
1856 param->value);
1857 } else if (!strcmp(param->name, TARGETALIAS)) {
1858 if (!param->value)
1859 continue;
1860 snprintf(ops->TargetAlias, sizeof(ops->TargetAlias),
1861 "%s", param->value);
1862 pr_debug("TargetAlias: %s\n",
1863 param->value);
1864 } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
1865 ops->TargetPortalGroupTag =
1866 simple_strtoul(param->value, &tmpptr, 0);
1867 pr_debug("TargetPortalGroupTag: %s\n",
1868 param->value);
1869 } else if (!strcmp(param->name, MAXCONNECTIONS)) {
1870 ops->MaxConnections =
1871 simple_strtoul(param->value, &tmpptr, 0);
1872 pr_debug("MaxConnections: %s\n",
1873 param->value);
1874 } else if (!strcmp(param->name, INITIALR2T)) {
1875 ops->InitialR2T = !strcmp(param->value, YES);
1876 pr_debug("InitialR2T: %s\n",
1877 param->value);
1878 } else if (!strcmp(param->name, IMMEDIATEDATA)) {
1879 ops->ImmediateData = !strcmp(param->value, YES);
1880 pr_debug("ImmediateData: %s\n",
1881 param->value);
1882 } else if (!strcmp(param->name, MAXBURSTLENGTH)) {
1883 ops->MaxBurstLength =
1884 simple_strtoul(param->value, &tmpptr, 0);
1885 pr_debug("MaxBurstLength: %s\n",
1886 param->value);
1887 } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
1888 ops->FirstBurstLength =
1889 simple_strtoul(param->value, &tmpptr, 0);
1890 pr_debug("FirstBurstLength: %s\n",
1891 param->value);
1892 } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
1893 ops->DefaultTime2Wait =
1894 simple_strtoul(param->value, &tmpptr, 0);
1895 pr_debug("DefaultTime2Wait: %s\n",
1896 param->value);
1897 } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
1898 ops->DefaultTime2Retain =
1899 simple_strtoul(param->value, &tmpptr, 0);
1900 pr_debug("DefaultTime2Retain: %s\n",
1901 param->value);
1902 } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
1903 ops->MaxOutstandingR2T =
1904 simple_strtoul(param->value, &tmpptr, 0);
1905 pr_debug("MaxOutstandingR2T: %s\n",
1906 param->value);
1907 } else if (!strcmp(param->name, DATAPDUINORDER)) {
1908 ops->DataPDUInOrder = !strcmp(param->value, YES);
1909 pr_debug("DataPDUInOrder: %s\n",
1910 param->value);
1911 } else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
1912 ops->DataSequenceInOrder = !strcmp(param->value, YES);
1913 pr_debug("DataSequenceInOrder: %s\n",
1914 param->value);
1915 } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
1916 ops->ErrorRecoveryLevel =
1917 simple_strtoul(param->value, &tmpptr, 0);
1918 pr_debug("ErrorRecoveryLevel: %s\n",
1919 param->value);
1920 } else if (!strcmp(param->name, SESSIONTYPE)) {
1921 ops->SessionType = !strcmp(param->value, DISCOVERY);
1922 pr_debug("SessionType: %s\n",
1923 param->value);
1924 }
1925 }
1926 pr_debug("----------------------------------------------------"
1927 "--------------\n");
1928
1929 }
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