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e48354ce NB |
1 | /******************************************************************************* |
2 | * This file contains main functions related to iSCSI Parameter negotiation. | |
3 | * | |
4c76251e | 4 | * (c) Copyright 2007-2013 Datera, Inc. |
e48354ce NB |
5 | * |
6 | * Author: Nicholas A. Bellinger <nab@linux-iscsi.org> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | ******************************************************************************/ | |
18 | ||
19 | #include <linux/slab.h> | |
8dcf07be | 20 | #include <linux/uio.h> /* struct kvec */ |
67f091f2 | 21 | #include <target/iscsi/iscsi_target_core.h> |
e48354ce NB |
22 | #include "iscsi_target_util.h" |
23 | #include "iscsi_target_parameters.h" | |
24 | ||
25 | int iscsi_login_rx_data( | |
26 | struct iscsi_conn *conn, | |
27 | char *buf, | |
28 | int length) | |
29 | { | |
30 | int rx_got; | |
31 | struct kvec iov; | |
32 | ||
33 | memset(&iov, 0, sizeof(struct kvec)); | |
34 | iov.iov_len = length; | |
35 | iov.iov_base = buf; | |
36 | ||
e48354ce NB |
37 | rx_got = rx_data(conn, &iov, 1, length); |
38 | if (rx_got != length) { | |
39 | pr_err("rx_data returned %d, expecting %d.\n", | |
40 | rx_got, length); | |
41 | return -1; | |
42 | } | |
43 | ||
44 | return 0 ; | |
45 | } | |
46 | ||
47 | int iscsi_login_tx_data( | |
48 | struct iscsi_conn *conn, | |
49 | char *pdu_buf, | |
50 | char *text_buf, | |
51 | int text_length) | |
52 | { | |
baa4d64b | 53 | int length, tx_sent, iov_cnt = 1; |
e48354ce NB |
54 | struct kvec iov[2]; |
55 | ||
56 | length = (ISCSI_HDR_LEN + text_length); | |
57 | ||
58 | memset(&iov[0], 0, 2 * sizeof(struct kvec)); | |
59 | iov[0].iov_len = ISCSI_HDR_LEN; | |
60 | iov[0].iov_base = pdu_buf; | |
baa4d64b NB |
61 | |
62 | if (text_buf && text_length) { | |
63 | iov[1].iov_len = text_length; | |
64 | iov[1].iov_base = text_buf; | |
65 | iov_cnt++; | |
66 | } | |
e48354ce | 67 | |
baa4d64b | 68 | tx_sent = tx_data(conn, &iov[0], iov_cnt, length); |
e48354ce NB |
69 | if (tx_sent != length) { |
70 | pr_err("tx_data returned %d, expecting %d.\n", | |
71 | tx_sent, length); | |
72 | return -1; | |
73 | } | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
78 | void iscsi_dump_conn_ops(struct iscsi_conn_ops *conn_ops) | |
79 | { | |
80 | pr_debug("HeaderDigest: %s\n", (conn_ops->HeaderDigest) ? | |
81 | "CRC32C" : "None"); | |
82 | pr_debug("DataDigest: %s\n", (conn_ops->DataDigest) ? | |
83 | "CRC32C" : "None"); | |
84 | pr_debug("MaxRecvDataSegmentLength: %u\n", | |
85 | conn_ops->MaxRecvDataSegmentLength); | |
e48354ce NB |
86 | } |
87 | ||
88 | void iscsi_dump_sess_ops(struct iscsi_sess_ops *sess_ops) | |
89 | { | |
90 | pr_debug("InitiatorName: %s\n", sess_ops->InitiatorName); | |
91 | pr_debug("InitiatorAlias: %s\n", sess_ops->InitiatorAlias); | |
92 | pr_debug("TargetName: %s\n", sess_ops->TargetName); | |
93 | pr_debug("TargetAlias: %s\n", sess_ops->TargetAlias); | |
94 | pr_debug("TargetPortalGroupTag: %hu\n", | |
95 | sess_ops->TargetPortalGroupTag); | |
96 | pr_debug("MaxConnections: %hu\n", sess_ops->MaxConnections); | |
97 | pr_debug("InitialR2T: %s\n", | |
98 | (sess_ops->InitialR2T) ? "Yes" : "No"); | |
99 | pr_debug("ImmediateData: %s\n", (sess_ops->ImmediateData) ? | |
100 | "Yes" : "No"); | |
101 | pr_debug("MaxBurstLength: %u\n", sess_ops->MaxBurstLength); | |
102 | pr_debug("FirstBurstLength: %u\n", sess_ops->FirstBurstLength); | |
103 | pr_debug("DefaultTime2Wait: %hu\n", sess_ops->DefaultTime2Wait); | |
104 | pr_debug("DefaultTime2Retain: %hu\n", | |
105 | sess_ops->DefaultTime2Retain); | |
106 | pr_debug("MaxOutstandingR2T: %hu\n", | |
107 | sess_ops->MaxOutstandingR2T); | |
108 | pr_debug("DataPDUInOrder: %s\n", | |
109 | (sess_ops->DataPDUInOrder) ? "Yes" : "No"); | |
110 | pr_debug("DataSequenceInOrder: %s\n", | |
111 | (sess_ops->DataSequenceInOrder) ? "Yes" : "No"); | |
112 | pr_debug("ErrorRecoveryLevel: %hu\n", | |
113 | sess_ops->ErrorRecoveryLevel); | |
114 | pr_debug("SessionType: %s\n", (sess_ops->SessionType) ? | |
115 | "Discovery" : "Normal"); | |
116 | } | |
117 | ||
118 | void iscsi_print_params(struct iscsi_param_list *param_list) | |
119 | { | |
120 | struct iscsi_param *param; | |
121 | ||
122 | list_for_each_entry(param, ¶m_list->param_list, p_list) | |
123 | pr_debug("%s: %s\n", param->name, param->value); | |
124 | } | |
125 | ||
126 | static struct iscsi_param *iscsi_set_default_param(struct iscsi_param_list *param_list, | |
127 | char *name, char *value, u8 phase, u8 scope, u8 sender, | |
128 | u16 type_range, u8 use) | |
129 | { | |
130 | struct iscsi_param *param = NULL; | |
131 | ||
132 | param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL); | |
133 | if (!param) { | |
134 | pr_err("Unable to allocate memory for parameter.\n"); | |
135 | goto out; | |
136 | } | |
137 | INIT_LIST_HEAD(¶m->p_list); | |
138 | ||
ed72a4d5 | 139 | param->name = kstrdup(name, GFP_KERNEL); |
e48354ce NB |
140 | if (!param->name) { |
141 | pr_err("Unable to allocate memory for parameter name.\n"); | |
142 | goto out; | |
143 | } | |
144 | ||
ed72a4d5 | 145 | param->value = kstrdup(value, GFP_KERNEL); |
e48354ce NB |
146 | if (!param->value) { |
147 | pr_err("Unable to allocate memory for parameter value.\n"); | |
148 | goto out; | |
149 | } | |
150 | ||
e48354ce NB |
151 | param->phase = phase; |
152 | param->scope = scope; | |
153 | param->sender = sender; | |
154 | param->use = use; | |
155 | param->type_range = type_range; | |
156 | ||
157 | switch (param->type_range) { | |
158 | case TYPERANGE_BOOL_AND: | |
159 | param->type = TYPE_BOOL_AND; | |
160 | break; | |
161 | case TYPERANGE_BOOL_OR: | |
162 | param->type = TYPE_BOOL_OR; | |
163 | break; | |
164 | case TYPERANGE_0_TO_2: | |
165 | case TYPERANGE_0_TO_3600: | |
166 | case TYPERANGE_0_TO_32767: | |
167 | case TYPERANGE_0_TO_65535: | |
168 | case TYPERANGE_1_TO_65535: | |
169 | case TYPERANGE_2_TO_3600: | |
170 | case TYPERANGE_512_TO_16777215: | |
171 | param->type = TYPE_NUMBER; | |
172 | break; | |
173 | case TYPERANGE_AUTH: | |
174 | case TYPERANGE_DIGEST: | |
175 | param->type = TYPE_VALUE_LIST | TYPE_STRING; | |
176 | break; | |
e48354ce NB |
177 | case TYPERANGE_ISCSINAME: |
178 | case TYPERANGE_SESSIONTYPE: | |
179 | case TYPERANGE_TARGETADDRESS: | |
180 | case TYPERANGE_UTF8: | |
181 | param->type = TYPE_STRING; | |
182 | break; | |
183 | default: | |
184 | pr_err("Unknown type_range 0x%02x\n", | |
185 | param->type_range); | |
186 | goto out; | |
187 | } | |
188 | list_add_tail(¶m->p_list, ¶m_list->param_list); | |
189 | ||
190 | return param; | |
191 | out: | |
192 | if (param) { | |
193 | kfree(param->value); | |
194 | kfree(param->name); | |
195 | kfree(param); | |
196 | } | |
197 | ||
198 | return NULL; | |
199 | } | |
200 | ||
201 | /* #warning Add extension keys */ | |
202 | int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr) | |
203 | { | |
204 | struct iscsi_param *param = NULL; | |
205 | struct iscsi_param_list *pl; | |
206 | ||
207 | pl = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL); | |
208 | if (!pl) { | |
209 | pr_err("Unable to allocate memory for" | |
210 | " struct iscsi_param_list.\n"); | |
82a819e8 | 211 | return -ENOMEM; |
e48354ce NB |
212 | } |
213 | INIT_LIST_HEAD(&pl->param_list); | |
214 | INIT_LIST_HEAD(&pl->extra_response_list); | |
215 | ||
216 | /* | |
217 | * The format for setting the initial parameter definitions are: | |
218 | * | |
219 | * Parameter name: | |
220 | * Initial value: | |
221 | * Allowable phase: | |
222 | * Scope: | |
223 | * Allowable senders: | |
224 | * Typerange: | |
225 | * Use: | |
226 | */ | |
227 | param = iscsi_set_default_param(pl, AUTHMETHOD, INITIAL_AUTHMETHOD, | |
228 | PHASE_SECURITY, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
229 | TYPERANGE_AUTH, USE_INITIAL_ONLY); | |
230 | if (!param) | |
231 | goto out; | |
232 | ||
233 | param = iscsi_set_default_param(pl, HEADERDIGEST, INITIAL_HEADERDIGEST, | |
234 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
235 | TYPERANGE_DIGEST, USE_INITIAL_ONLY); | |
236 | if (!param) | |
237 | goto out; | |
238 | ||
239 | param = iscsi_set_default_param(pl, DATADIGEST, INITIAL_DATADIGEST, | |
240 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
241 | TYPERANGE_DIGEST, USE_INITIAL_ONLY); | |
242 | if (!param) | |
243 | goto out; | |
244 | ||
245 | param = iscsi_set_default_param(pl, MAXCONNECTIONS, | |
246 | INITIAL_MAXCONNECTIONS, PHASE_OPERATIONAL, | |
247 | SCOPE_SESSION_WIDE, SENDER_BOTH, | |
248 | TYPERANGE_1_TO_65535, USE_LEADING_ONLY); | |
249 | if (!param) | |
250 | goto out; | |
251 | ||
252 | param = iscsi_set_default_param(pl, SENDTARGETS, INITIAL_SENDTARGETS, | |
253 | PHASE_FFP0, SCOPE_SESSION_WIDE, SENDER_INITIATOR, | |
254 | TYPERANGE_UTF8, 0); | |
255 | if (!param) | |
256 | goto out; | |
257 | ||
258 | param = iscsi_set_default_param(pl, TARGETNAME, INITIAL_TARGETNAME, | |
259 | PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
260 | TYPERANGE_ISCSINAME, USE_ALL); | |
261 | if (!param) | |
262 | goto out; | |
263 | ||
264 | param = iscsi_set_default_param(pl, INITIATORNAME, | |
265 | INITIAL_INITIATORNAME, PHASE_DECLARATIVE, | |
266 | SCOPE_SESSION_WIDE, SENDER_INITIATOR, | |
267 | TYPERANGE_ISCSINAME, USE_INITIAL_ONLY); | |
268 | if (!param) | |
269 | goto out; | |
270 | ||
271 | param = iscsi_set_default_param(pl, TARGETALIAS, INITIAL_TARGETALIAS, | |
272 | PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET, | |
273 | TYPERANGE_UTF8, USE_ALL); | |
274 | if (!param) | |
275 | goto out; | |
276 | ||
277 | param = iscsi_set_default_param(pl, INITIATORALIAS, | |
278 | INITIAL_INITIATORALIAS, PHASE_DECLARATIVE, | |
279 | SCOPE_SESSION_WIDE, SENDER_INITIATOR, TYPERANGE_UTF8, | |
280 | USE_ALL); | |
281 | if (!param) | |
282 | goto out; | |
283 | ||
284 | param = iscsi_set_default_param(pl, TARGETADDRESS, | |
285 | INITIAL_TARGETADDRESS, PHASE_DECLARATIVE, | |
286 | SCOPE_SESSION_WIDE, SENDER_TARGET, | |
287 | TYPERANGE_TARGETADDRESS, USE_ALL); | |
288 | if (!param) | |
289 | goto out; | |
290 | ||
291 | param = iscsi_set_default_param(pl, TARGETPORTALGROUPTAG, | |
292 | INITIAL_TARGETPORTALGROUPTAG, | |
293 | PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET, | |
294 | TYPERANGE_0_TO_65535, USE_INITIAL_ONLY); | |
295 | if (!param) | |
296 | goto out; | |
297 | ||
298 | param = iscsi_set_default_param(pl, INITIALR2T, INITIAL_INITIALR2T, | |
299 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
300 | TYPERANGE_BOOL_OR, USE_LEADING_ONLY); | |
301 | if (!param) | |
302 | goto out; | |
303 | ||
304 | param = iscsi_set_default_param(pl, IMMEDIATEDATA, | |
305 | INITIAL_IMMEDIATEDATA, PHASE_OPERATIONAL, | |
306 | SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_AND, | |
307 | USE_LEADING_ONLY); | |
308 | if (!param) | |
309 | goto out; | |
310 | ||
e004cb25 NB |
311 | param = iscsi_set_default_param(pl, MAXXMITDATASEGMENTLENGTH, |
312 | INITIAL_MAXXMITDATASEGMENTLENGTH, | |
313 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
314 | TYPERANGE_512_TO_16777215, USE_ALL); | |
315 | if (!param) | |
316 | goto out; | |
317 | ||
e48354ce NB |
318 | param = iscsi_set_default_param(pl, MAXRECVDATASEGMENTLENGTH, |
319 | INITIAL_MAXRECVDATASEGMENTLENGTH, | |
320 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
321 | TYPERANGE_512_TO_16777215, USE_ALL); | |
322 | if (!param) | |
323 | goto out; | |
324 | ||
325 | param = iscsi_set_default_param(pl, MAXBURSTLENGTH, | |
326 | INITIAL_MAXBURSTLENGTH, PHASE_OPERATIONAL, | |
327 | SCOPE_SESSION_WIDE, SENDER_BOTH, | |
328 | TYPERANGE_512_TO_16777215, USE_LEADING_ONLY); | |
329 | if (!param) | |
330 | goto out; | |
331 | ||
332 | param = iscsi_set_default_param(pl, FIRSTBURSTLENGTH, | |
333 | INITIAL_FIRSTBURSTLENGTH, | |
334 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
335 | TYPERANGE_512_TO_16777215, USE_LEADING_ONLY); | |
336 | if (!param) | |
337 | goto out; | |
338 | ||
339 | param = iscsi_set_default_param(pl, DEFAULTTIME2WAIT, | |
340 | INITIAL_DEFAULTTIME2WAIT, | |
341 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
342 | TYPERANGE_0_TO_3600, USE_LEADING_ONLY); | |
343 | if (!param) | |
344 | goto out; | |
345 | ||
346 | param = iscsi_set_default_param(pl, DEFAULTTIME2RETAIN, | |
347 | INITIAL_DEFAULTTIME2RETAIN, | |
348 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
349 | TYPERANGE_0_TO_3600, USE_LEADING_ONLY); | |
350 | if (!param) | |
351 | goto out; | |
352 | ||
353 | param = iscsi_set_default_param(pl, MAXOUTSTANDINGR2T, | |
354 | INITIAL_MAXOUTSTANDINGR2T, | |
355 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
356 | TYPERANGE_1_TO_65535, USE_LEADING_ONLY); | |
357 | if (!param) | |
358 | goto out; | |
359 | ||
360 | param = iscsi_set_default_param(pl, DATAPDUINORDER, | |
361 | INITIAL_DATAPDUINORDER, PHASE_OPERATIONAL, | |
362 | SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_OR, | |
363 | USE_LEADING_ONLY); | |
364 | if (!param) | |
365 | goto out; | |
366 | ||
367 | param = iscsi_set_default_param(pl, DATASEQUENCEINORDER, | |
368 | INITIAL_DATASEQUENCEINORDER, | |
369 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
370 | TYPERANGE_BOOL_OR, USE_LEADING_ONLY); | |
371 | if (!param) | |
372 | goto out; | |
373 | ||
374 | param = iscsi_set_default_param(pl, ERRORRECOVERYLEVEL, | |
375 | INITIAL_ERRORRECOVERYLEVEL, | |
376 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
377 | TYPERANGE_0_TO_2, USE_LEADING_ONLY); | |
378 | if (!param) | |
379 | goto out; | |
380 | ||
381 | param = iscsi_set_default_param(pl, SESSIONTYPE, INITIAL_SESSIONTYPE, | |
382 | PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_INITIATOR, | |
383 | TYPERANGE_SESSIONTYPE, USE_LEADING_ONLY); | |
384 | if (!param) | |
385 | goto out; | |
386 | ||
387 | param = iscsi_set_default_param(pl, IFMARKER, INITIAL_IFMARKER, | |
388 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
389 | TYPERANGE_BOOL_AND, USE_INITIAL_ONLY); | |
390 | if (!param) | |
391 | goto out; | |
392 | ||
393 | param = iscsi_set_default_param(pl, OFMARKER, INITIAL_OFMARKER, | |
394 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
395 | TYPERANGE_BOOL_AND, USE_INITIAL_ONLY); | |
396 | if (!param) | |
397 | goto out; | |
398 | ||
399 | param = iscsi_set_default_param(pl, IFMARKINT, INITIAL_IFMARKINT, | |
400 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
c04a6091 | 401 | TYPERANGE_UTF8, USE_INITIAL_ONLY); |
e48354ce NB |
402 | if (!param) |
403 | goto out; | |
404 | ||
405 | param = iscsi_set_default_param(pl, OFMARKINT, INITIAL_OFMARKINT, | |
406 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
c04a6091 | 407 | TYPERANGE_UTF8, USE_INITIAL_ONLY); |
e48354ce NB |
408 | if (!param) |
409 | goto out; | |
673681ca | 410 | |
03aa2070 NB |
411 | /* |
412 | * Extra parameters for ISER from RFC-5046 | |
413 | */ | |
af40bb0b | 414 | param = iscsi_set_default_param(pl, RDMAEXTENSIONS, INITIAL_RDMAEXTENSIONS, |
03aa2070 NB |
415 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, |
416 | TYPERANGE_BOOL_AND, USE_LEADING_ONLY); | |
417 | if (!param) | |
418 | goto out; | |
419 | ||
420 | param = iscsi_set_default_param(pl, INITIATORRECVDATASEGMENTLENGTH, | |
421 | INITIAL_INITIATORRECVDATASEGMENTLENGTH, | |
422 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
423 | TYPERANGE_512_TO_16777215, USE_ALL); | |
424 | if (!param) | |
425 | goto out; | |
426 | ||
427 | param = iscsi_set_default_param(pl, TARGETRECVDATASEGMENTLENGTH, | |
428 | INITIAL_TARGETRECVDATASEGMENTLENGTH, | |
429 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
430 | TYPERANGE_512_TO_16777215, USE_ALL); | |
431 | if (!param) | |
432 | goto out; | |
e48354ce NB |
433 | |
434 | *param_list_ptr = pl; | |
435 | return 0; | |
436 | out: | |
437 | iscsi_release_param_list(pl); | |
438 | return -1; | |
439 | } | |
440 | ||
441 | int iscsi_set_keys_to_negotiate( | |
03aa2070 NB |
442 | struct iscsi_param_list *param_list, |
443 | bool iser) | |
e48354ce NB |
444 | { |
445 | struct iscsi_param *param; | |
446 | ||
03aa2070 NB |
447 | param_list->iser = iser; |
448 | ||
e48354ce NB |
449 | list_for_each_entry(param, ¶m_list->param_list, p_list) { |
450 | param->state = 0; | |
451 | if (!strcmp(param->name, AUTHMETHOD)) { | |
452 | SET_PSTATE_NEGOTIATE(param); | |
453 | } else if (!strcmp(param->name, HEADERDIGEST)) { | |
0bcc297e | 454 | if (!iser) |
03aa2070 | 455 | SET_PSTATE_NEGOTIATE(param); |
e48354ce | 456 | } else if (!strcmp(param->name, DATADIGEST)) { |
0bcc297e | 457 | if (!iser) |
03aa2070 | 458 | SET_PSTATE_NEGOTIATE(param); |
e48354ce NB |
459 | } else if (!strcmp(param->name, MAXCONNECTIONS)) { |
460 | SET_PSTATE_NEGOTIATE(param); | |
461 | } else if (!strcmp(param->name, TARGETNAME)) { | |
462 | continue; | |
463 | } else if (!strcmp(param->name, INITIATORNAME)) { | |
464 | continue; | |
465 | } else if (!strcmp(param->name, TARGETALIAS)) { | |
466 | if (param->value) | |
467 | SET_PSTATE_NEGOTIATE(param); | |
468 | } else if (!strcmp(param->name, INITIATORALIAS)) { | |
469 | continue; | |
470 | } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) { | |
471 | SET_PSTATE_NEGOTIATE(param); | |
472 | } else if (!strcmp(param->name, INITIALR2T)) { | |
473 | SET_PSTATE_NEGOTIATE(param); | |
474 | } else if (!strcmp(param->name, IMMEDIATEDATA)) { | |
475 | SET_PSTATE_NEGOTIATE(param); | |
476 | } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) { | |
0bcc297e | 477 | if (!iser) |
03aa2070 | 478 | SET_PSTATE_NEGOTIATE(param); |
e004cb25 NB |
479 | } else if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) { |
480 | continue; | |
e48354ce NB |
481 | } else if (!strcmp(param->name, MAXBURSTLENGTH)) { |
482 | SET_PSTATE_NEGOTIATE(param); | |
483 | } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) { | |
484 | SET_PSTATE_NEGOTIATE(param); | |
485 | } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) { | |
486 | SET_PSTATE_NEGOTIATE(param); | |
487 | } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) { | |
488 | SET_PSTATE_NEGOTIATE(param); | |
489 | } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) { | |
490 | SET_PSTATE_NEGOTIATE(param); | |
491 | } else if (!strcmp(param->name, DATAPDUINORDER)) { | |
492 | SET_PSTATE_NEGOTIATE(param); | |
493 | } else if (!strcmp(param->name, DATASEQUENCEINORDER)) { | |
494 | SET_PSTATE_NEGOTIATE(param); | |
495 | } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) { | |
496 | SET_PSTATE_NEGOTIATE(param); | |
497 | } else if (!strcmp(param->name, SESSIONTYPE)) { | |
498 | SET_PSTATE_NEGOTIATE(param); | |
499 | } else if (!strcmp(param->name, IFMARKER)) { | |
673681ca | 500 | SET_PSTATE_REJECT(param); |
e48354ce | 501 | } else if (!strcmp(param->name, OFMARKER)) { |
673681ca | 502 | SET_PSTATE_REJECT(param); |
e48354ce | 503 | } else if (!strcmp(param->name, IFMARKINT)) { |
c04a6091 | 504 | SET_PSTATE_REJECT(param); |
e48354ce | 505 | } else if (!strcmp(param->name, OFMARKINT)) { |
c04a6091 | 506 | SET_PSTATE_REJECT(param); |
af40bb0b | 507 | } else if (!strcmp(param->name, RDMAEXTENSIONS)) { |
0bcc297e | 508 | if (iser) |
03aa2070 NB |
509 | SET_PSTATE_NEGOTIATE(param); |
510 | } else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) { | |
0bcc297e | 511 | if (iser) |
03aa2070 NB |
512 | SET_PSTATE_NEGOTIATE(param); |
513 | } else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) { | |
0bcc297e | 514 | if (iser) |
03aa2070 | 515 | SET_PSTATE_NEGOTIATE(param); |
e48354ce NB |
516 | } |
517 | } | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
522 | int iscsi_set_keys_irrelevant_for_discovery( | |
523 | struct iscsi_param_list *param_list) | |
524 | { | |
525 | struct iscsi_param *param; | |
526 | ||
527 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
528 | if (!strcmp(param->name, MAXCONNECTIONS)) | |
529 | param->state &= ~PSTATE_NEGOTIATE; | |
530 | else if (!strcmp(param->name, INITIALR2T)) | |
531 | param->state &= ~PSTATE_NEGOTIATE; | |
532 | else if (!strcmp(param->name, IMMEDIATEDATA)) | |
533 | param->state &= ~PSTATE_NEGOTIATE; | |
534 | else if (!strcmp(param->name, MAXBURSTLENGTH)) | |
535 | param->state &= ~PSTATE_NEGOTIATE; | |
536 | else if (!strcmp(param->name, FIRSTBURSTLENGTH)) | |
537 | param->state &= ~PSTATE_NEGOTIATE; | |
538 | else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) | |
539 | param->state &= ~PSTATE_NEGOTIATE; | |
540 | else if (!strcmp(param->name, DATAPDUINORDER)) | |
541 | param->state &= ~PSTATE_NEGOTIATE; | |
542 | else if (!strcmp(param->name, DATASEQUENCEINORDER)) | |
543 | param->state &= ~PSTATE_NEGOTIATE; | |
544 | else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) | |
545 | param->state &= ~PSTATE_NEGOTIATE; | |
546 | else if (!strcmp(param->name, DEFAULTTIME2WAIT)) | |
547 | param->state &= ~PSTATE_NEGOTIATE; | |
548 | else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) | |
549 | param->state &= ~PSTATE_NEGOTIATE; | |
550 | else if (!strcmp(param->name, IFMARKER)) | |
551 | param->state &= ~PSTATE_NEGOTIATE; | |
552 | else if (!strcmp(param->name, OFMARKER)) | |
553 | param->state &= ~PSTATE_NEGOTIATE; | |
554 | else if (!strcmp(param->name, IFMARKINT)) | |
555 | param->state &= ~PSTATE_NEGOTIATE; | |
556 | else if (!strcmp(param->name, OFMARKINT)) | |
557 | param->state &= ~PSTATE_NEGOTIATE; | |
af40bb0b | 558 | else if (!strcmp(param->name, RDMAEXTENSIONS)) |
03aa2070 NB |
559 | param->state &= ~PSTATE_NEGOTIATE; |
560 | else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) | |
561 | param->state &= ~PSTATE_NEGOTIATE; | |
562 | else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) | |
563 | param->state &= ~PSTATE_NEGOTIATE; | |
e48354ce NB |
564 | } |
565 | ||
566 | return 0; | |
567 | } | |
568 | ||
569 | int iscsi_copy_param_list( | |
570 | struct iscsi_param_list **dst_param_list, | |
571 | struct iscsi_param_list *src_param_list, | |
572 | int leading) | |
573 | { | |
9be08c58 JJ |
574 | struct iscsi_param *param = NULL; |
575 | struct iscsi_param *new_param = NULL; | |
e48354ce NB |
576 | struct iscsi_param_list *param_list = NULL; |
577 | ||
578 | param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL); | |
579 | if (!param_list) { | |
9be08c58 | 580 | pr_err("Unable to allocate memory for struct iscsi_param_list.\n"); |
82a819e8 | 581 | return -ENOMEM; |
e48354ce NB |
582 | } |
583 | INIT_LIST_HEAD(¶m_list->param_list); | |
584 | INIT_LIST_HEAD(¶m_list->extra_response_list); | |
585 | ||
586 | list_for_each_entry(param, &src_param_list->param_list, p_list) { | |
587 | if (!leading && (param->scope & SCOPE_SESSION_WIDE)) { | |
588 | if ((strcmp(param->name, "TargetName") != 0) && | |
589 | (strcmp(param->name, "InitiatorName") != 0) && | |
590 | (strcmp(param->name, "TargetPortalGroupTag") != 0)) | |
591 | continue; | |
592 | } | |
593 | ||
594 | new_param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL); | |
595 | if (!new_param) { | |
9be08c58 JJ |
596 | pr_err("Unable to allocate memory for struct iscsi_param.\n"); |
597 | goto err_out; | |
598 | } | |
599 | ||
600 | new_param->name = kstrdup(param->name, GFP_KERNEL); | |
601 | new_param->value = kstrdup(param->value, GFP_KERNEL); | |
602 | if (!new_param->value || !new_param->name) { | |
603 | kfree(new_param->value); | |
604 | kfree(new_param->name); | |
605 | kfree(new_param); | |
606 | pr_err("Unable to allocate memory for parameter name/value.\n"); | |
e48354ce NB |
607 | goto err_out; |
608 | } | |
609 | ||
610 | new_param->set_param = param->set_param; | |
611 | new_param->phase = param->phase; | |
612 | new_param->scope = param->scope; | |
613 | new_param->sender = param->sender; | |
614 | new_param->type = param->type; | |
615 | new_param->use = param->use; | |
616 | new_param->type_range = param->type_range; | |
617 | ||
e48354ce NB |
618 | list_add_tail(&new_param->p_list, ¶m_list->param_list); |
619 | } | |
620 | ||
9be08c58 | 621 | if (!list_empty(¶m_list->param_list)) { |
e48354ce | 622 | *dst_param_list = param_list; |
9be08c58 | 623 | } else { |
e48354ce NB |
624 | pr_err("No parameters allocated.\n"); |
625 | goto err_out; | |
626 | } | |
627 | ||
628 | return 0; | |
629 | ||
630 | err_out: | |
631 | iscsi_release_param_list(param_list); | |
82a819e8 | 632 | return -ENOMEM; |
e48354ce NB |
633 | } |
634 | ||
635 | static void iscsi_release_extra_responses(struct iscsi_param_list *param_list) | |
636 | { | |
637 | struct iscsi_extra_response *er, *er_tmp; | |
638 | ||
639 | list_for_each_entry_safe(er, er_tmp, ¶m_list->extra_response_list, | |
640 | er_list) { | |
641 | list_del(&er->er_list); | |
642 | kfree(er); | |
643 | } | |
644 | } | |
645 | ||
646 | void iscsi_release_param_list(struct iscsi_param_list *param_list) | |
647 | { | |
648 | struct iscsi_param *param, *param_tmp; | |
649 | ||
650 | list_for_each_entry_safe(param, param_tmp, ¶m_list->param_list, | |
651 | p_list) { | |
652 | list_del(¶m->p_list); | |
653 | ||
654 | kfree(param->name); | |
e48354ce | 655 | kfree(param->value); |
e48354ce | 656 | kfree(param); |
e48354ce NB |
657 | } |
658 | ||
659 | iscsi_release_extra_responses(param_list); | |
660 | ||
661 | kfree(param_list); | |
662 | } | |
663 | ||
664 | struct iscsi_param *iscsi_find_param_from_key( | |
665 | char *key, | |
666 | struct iscsi_param_list *param_list) | |
667 | { | |
668 | struct iscsi_param *param; | |
669 | ||
670 | if (!key || !param_list) { | |
671 | pr_err("Key or parameter list pointer is NULL.\n"); | |
672 | return NULL; | |
673 | } | |
674 | ||
675 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
676 | if (!strcmp(key, param->name)) | |
677 | return param; | |
678 | } | |
679 | ||
680 | pr_err("Unable to locate key \"%s\".\n", key); | |
681 | return NULL; | |
682 | } | |
d2faaefb | 683 | EXPORT_SYMBOL(iscsi_find_param_from_key); |
e48354ce NB |
684 | |
685 | int iscsi_extract_key_value(char *textbuf, char **key, char **value) | |
686 | { | |
687 | *value = strchr(textbuf, '='); | |
688 | if (!*value) { | |
59e13d48 | 689 | pr_err("Unable to locate \"=\" separator for key," |
e48354ce NB |
690 | " ignoring request.\n"); |
691 | return -1; | |
692 | } | |
693 | ||
694 | *key = textbuf; | |
695 | **value = '\0'; | |
696 | *value = *value + 1; | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
701 | int iscsi_update_param_value(struct iscsi_param *param, char *value) | |
702 | { | |
703 | kfree(param->value); | |
704 | ||
ed72a4d5 | 705 | param->value = kstrdup(value, GFP_KERNEL); |
e48354ce NB |
706 | if (!param->value) { |
707 | pr_err("Unable to allocate memory for value.\n"); | |
617a0c2e | 708 | return -ENOMEM; |
e48354ce NB |
709 | } |
710 | ||
e48354ce NB |
711 | pr_debug("iSCSI Parameter updated to %s=%s\n", |
712 | param->name, param->value); | |
713 | return 0; | |
714 | } | |
715 | ||
716 | static int iscsi_add_notunderstood_response( | |
717 | char *key, | |
718 | char *value, | |
719 | struct iscsi_param_list *param_list) | |
720 | { | |
721 | struct iscsi_extra_response *extra_response; | |
722 | ||
723 | if (strlen(value) > VALUE_MAXLEN) { | |
724 | pr_err("Value for notunderstood key \"%s\" exceeds %d," | |
725 | " protocol error.\n", key, VALUE_MAXLEN); | |
726 | return -1; | |
727 | } | |
728 | ||
729 | extra_response = kzalloc(sizeof(struct iscsi_extra_response), GFP_KERNEL); | |
730 | if (!extra_response) { | |
731 | pr_err("Unable to allocate memory for" | |
732 | " struct iscsi_extra_response.\n"); | |
82a819e8 | 733 | return -ENOMEM; |
e48354ce NB |
734 | } |
735 | INIT_LIST_HEAD(&extra_response->er_list); | |
736 | ||
cea4dcfd KC |
737 | strlcpy(extra_response->key, key, sizeof(extra_response->key)); |
738 | strlcpy(extra_response->value, NOTUNDERSTOOD, | |
739 | sizeof(extra_response->value)); | |
e48354ce NB |
740 | |
741 | list_add_tail(&extra_response->er_list, | |
742 | ¶m_list->extra_response_list); | |
743 | return 0; | |
744 | } | |
745 | ||
746 | static int iscsi_check_for_auth_key(char *key) | |
747 | { | |
748 | /* | |
749 | * RFC 1994 | |
750 | */ | |
751 | if (!strcmp(key, "CHAP_A") || !strcmp(key, "CHAP_I") || | |
752 | !strcmp(key, "CHAP_C") || !strcmp(key, "CHAP_N") || | |
753 | !strcmp(key, "CHAP_R")) | |
754 | return 1; | |
755 | ||
756 | /* | |
757 | * RFC 2945 | |
758 | */ | |
759 | if (!strcmp(key, "SRP_U") || !strcmp(key, "SRP_N") || | |
760 | !strcmp(key, "SRP_g") || !strcmp(key, "SRP_s") || | |
761 | !strcmp(key, "SRP_A") || !strcmp(key, "SRP_B") || | |
762 | !strcmp(key, "SRP_M") || !strcmp(key, "SRP_HM")) | |
763 | return 1; | |
764 | ||
765 | return 0; | |
766 | } | |
767 | ||
768 | static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param) | |
769 | { | |
770 | if (IS_TYPE_BOOL_AND(param)) { | |
771 | if (!strcmp(param->value, NO)) | |
772 | SET_PSTATE_REPLY_OPTIONAL(param); | |
773 | } else if (IS_TYPE_BOOL_OR(param)) { | |
774 | if (!strcmp(param->value, YES)) | |
775 | SET_PSTATE_REPLY_OPTIONAL(param); | |
776 | /* | |
777 | * Required for gPXE iSCSI boot client | |
778 | */ | |
779 | if (!strcmp(param->name, IMMEDIATEDATA)) | |
780 | SET_PSTATE_REPLY_OPTIONAL(param); | |
781 | } else if (IS_TYPE_NUMBER(param)) { | |
782 | if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) | |
783 | SET_PSTATE_REPLY_OPTIONAL(param); | |
784 | /* | |
785 | * The GlobalSAN iSCSI Initiator for MacOSX does | |
786 | * not respond to MaxBurstLength, FirstBurstLength, | |
787 | * DefaultTime2Wait or DefaultTime2Retain parameter keys. | |
788 | * So, we set them to 'reply optional' here, and assume the | |
789 | * the defaults from iscsi_parameters.h if the initiator | |
790 | * is not RFC compliant and the keys are not negotiated. | |
791 | */ | |
792 | if (!strcmp(param->name, MAXBURSTLENGTH)) | |
793 | SET_PSTATE_REPLY_OPTIONAL(param); | |
794 | if (!strcmp(param->name, FIRSTBURSTLENGTH)) | |
795 | SET_PSTATE_REPLY_OPTIONAL(param); | |
796 | if (!strcmp(param->name, DEFAULTTIME2WAIT)) | |
797 | SET_PSTATE_REPLY_OPTIONAL(param); | |
798 | if (!strcmp(param->name, DEFAULTTIME2RETAIN)) | |
799 | SET_PSTATE_REPLY_OPTIONAL(param); | |
800 | /* | |
801 | * Required for gPXE iSCSI boot client | |
802 | */ | |
803 | if (!strcmp(param->name, MAXCONNECTIONS)) | |
804 | SET_PSTATE_REPLY_OPTIONAL(param); | |
805 | } else if (IS_PHASE_DECLARATIVE(param)) | |
806 | SET_PSTATE_REPLY_OPTIONAL(param); | |
807 | } | |
808 | ||
809 | static int iscsi_check_boolean_value(struct iscsi_param *param, char *value) | |
810 | { | |
811 | if (strcmp(value, YES) && strcmp(value, NO)) { | |
812 | pr_err("Illegal value for \"%s\", must be either" | |
813 | " \"%s\" or \"%s\".\n", param->name, YES, NO); | |
814 | return -1; | |
815 | } | |
816 | ||
817 | return 0; | |
818 | } | |
819 | ||
820 | static int iscsi_check_numerical_value(struct iscsi_param *param, char *value_ptr) | |
821 | { | |
822 | char *tmpptr; | |
823 | int value = 0; | |
824 | ||
825 | value = simple_strtoul(value_ptr, &tmpptr, 0); | |
826 | ||
e48354ce NB |
827 | if (IS_TYPERANGE_0_TO_2(param)) { |
828 | if ((value < 0) || (value > 2)) { | |
829 | pr_err("Illegal value for \"%s\", must be" | |
830 | " between 0 and 2.\n", param->name); | |
831 | return -1; | |
832 | } | |
833 | return 0; | |
834 | } | |
835 | if (IS_TYPERANGE_0_TO_3600(param)) { | |
836 | if ((value < 0) || (value > 3600)) { | |
837 | pr_err("Illegal value for \"%s\", must be" | |
838 | " between 0 and 3600.\n", param->name); | |
839 | return -1; | |
840 | } | |
841 | return 0; | |
842 | } | |
843 | if (IS_TYPERANGE_0_TO_32767(param)) { | |
844 | if ((value < 0) || (value > 32767)) { | |
845 | pr_err("Illegal value for \"%s\", must be" | |
846 | " between 0 and 32767.\n", param->name); | |
847 | return -1; | |
848 | } | |
849 | return 0; | |
850 | } | |
851 | if (IS_TYPERANGE_0_TO_65535(param)) { | |
852 | if ((value < 0) || (value > 65535)) { | |
853 | pr_err("Illegal value for \"%s\", must be" | |
854 | " between 0 and 65535.\n", param->name); | |
855 | return -1; | |
856 | } | |
857 | return 0; | |
858 | } | |
859 | if (IS_TYPERANGE_1_TO_65535(param)) { | |
860 | if ((value < 1) || (value > 65535)) { | |
861 | pr_err("Illegal value for \"%s\", must be" | |
862 | " between 1 and 65535.\n", param->name); | |
863 | return -1; | |
864 | } | |
865 | return 0; | |
866 | } | |
867 | if (IS_TYPERANGE_2_TO_3600(param)) { | |
868 | if ((value < 2) || (value > 3600)) { | |
869 | pr_err("Illegal value for \"%s\", must be" | |
870 | " between 2 and 3600.\n", param->name); | |
871 | return -1; | |
872 | } | |
873 | return 0; | |
874 | } | |
875 | if (IS_TYPERANGE_512_TO_16777215(param)) { | |
876 | if ((value < 512) || (value > 16777215)) { | |
877 | pr_err("Illegal value for \"%s\", must be" | |
878 | " between 512 and 16777215.\n", param->name); | |
879 | return -1; | |
880 | } | |
881 | return 0; | |
882 | } | |
883 | ||
884 | return 0; | |
885 | } | |
886 | ||
e48354ce NB |
887 | static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value) |
888 | { | |
889 | if (IS_PSTATE_PROPOSER(param)) | |
890 | return 0; | |
891 | ||
892 | if (IS_TYPERANGE_AUTH_PARAM(param)) { | |
893 | if (strcmp(value, KRB5) && strcmp(value, SPKM1) && | |
894 | strcmp(value, SPKM2) && strcmp(value, SRP) && | |
895 | strcmp(value, CHAP) && strcmp(value, NONE)) { | |
896 | pr_err("Illegal value for \"%s\", must be" | |
897 | " \"%s\", \"%s\", \"%s\", \"%s\", \"%s\"" | |
898 | " or \"%s\".\n", param->name, KRB5, | |
899 | SPKM1, SPKM2, SRP, CHAP, NONE); | |
900 | return -1; | |
901 | } | |
902 | } | |
903 | if (IS_TYPERANGE_DIGEST_PARAM(param)) { | |
904 | if (strcmp(value, CRC32C) && strcmp(value, NONE)) { | |
905 | pr_err("Illegal value for \"%s\", must be" | |
906 | " \"%s\" or \"%s\".\n", param->name, | |
907 | CRC32C, NONE); | |
908 | return -1; | |
909 | } | |
910 | } | |
911 | if (IS_TYPERANGE_SESSIONTYPE(param)) { | |
912 | if (strcmp(value, DISCOVERY) && strcmp(value, NORMAL)) { | |
913 | pr_err("Illegal value for \"%s\", must be" | |
914 | " \"%s\" or \"%s\".\n", param->name, | |
915 | DISCOVERY, NORMAL); | |
916 | return -1; | |
917 | } | |
918 | } | |
919 | ||
920 | return 0; | |
921 | } | |
922 | ||
e48354ce NB |
923 | static char *iscsi_check_valuelist_for_support( |
924 | struct iscsi_param *param, | |
925 | char *value) | |
926 | { | |
927 | char *tmp1 = NULL, *tmp2 = NULL; | |
928 | char *acceptor_values = NULL, *proposer_values = NULL; | |
929 | ||
930 | acceptor_values = param->value; | |
931 | proposer_values = value; | |
932 | ||
933 | do { | |
934 | if (!proposer_values) | |
935 | return NULL; | |
936 | tmp1 = strchr(proposer_values, ','); | |
937 | if (tmp1) | |
938 | *tmp1 = '\0'; | |
939 | acceptor_values = param->value; | |
940 | do { | |
941 | if (!acceptor_values) { | |
942 | if (tmp1) | |
943 | *tmp1 = ','; | |
944 | return NULL; | |
945 | } | |
946 | tmp2 = strchr(acceptor_values, ','); | |
947 | if (tmp2) | |
948 | *tmp2 = '\0'; | |
e48354ce NB |
949 | if (!strcmp(acceptor_values, proposer_values)) { |
950 | if (tmp2) | |
951 | *tmp2 = ','; | |
952 | goto out; | |
953 | } | |
954 | if (tmp2) | |
955 | *tmp2++ = ','; | |
956 | ||
957 | acceptor_values = tmp2; | |
e48354ce NB |
958 | } while (acceptor_values); |
959 | if (tmp1) | |
960 | *tmp1++ = ','; | |
961 | proposer_values = tmp1; | |
962 | } while (proposer_values); | |
963 | ||
964 | out: | |
965 | return proposer_values; | |
966 | } | |
967 | ||
9977bb18 NB |
968 | static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value, |
969 | struct iscsi_conn *conn) | |
e48354ce NB |
970 | { |
971 | u8 acceptor_boolean_value = 0, proposer_boolean_value = 0; | |
d2c27f0d | 972 | char *negotiated_value = NULL; |
e48354ce NB |
973 | |
974 | if (IS_PSTATE_ACCEPTOR(param)) { | |
975 | pr_err("Received key \"%s\" twice, protocol error.\n", | |
976 | param->name); | |
977 | return -1; | |
978 | } | |
979 | ||
980 | if (IS_PSTATE_REJECT(param)) | |
981 | return 0; | |
982 | ||
983 | if (IS_TYPE_BOOL_AND(param)) { | |
984 | if (!strcmp(value, YES)) | |
985 | proposer_boolean_value = 1; | |
986 | if (!strcmp(param->value, YES)) | |
987 | acceptor_boolean_value = 1; | |
988 | if (acceptor_boolean_value && proposer_boolean_value) | |
989 | do {} while (0); | |
990 | else { | |
991 | if (iscsi_update_param_value(param, NO) < 0) | |
992 | return -1; | |
993 | if (!proposer_boolean_value) | |
994 | SET_PSTATE_REPLY_OPTIONAL(param); | |
995 | } | |
996 | } else if (IS_TYPE_BOOL_OR(param)) { | |
997 | if (!strcmp(value, YES)) | |
998 | proposer_boolean_value = 1; | |
999 | if (!strcmp(param->value, YES)) | |
1000 | acceptor_boolean_value = 1; | |
1001 | if (acceptor_boolean_value || proposer_boolean_value) { | |
1002 | if (iscsi_update_param_value(param, YES) < 0) | |
1003 | return -1; | |
1004 | if (proposer_boolean_value) | |
1005 | SET_PSTATE_REPLY_OPTIONAL(param); | |
1006 | } | |
1007 | } else if (IS_TYPE_NUMBER(param)) { | |
1be2956d | 1008 | char *tmpptr, buf[11]; |
e48354ce NB |
1009 | u32 acceptor_value = simple_strtoul(param->value, &tmpptr, 0); |
1010 | u32 proposer_value = simple_strtoul(value, &tmpptr, 0); | |
1011 | ||
1be2956d | 1012 | memset(buf, 0, sizeof(buf)); |
e48354ce NB |
1013 | |
1014 | if (!strcmp(param->name, MAXCONNECTIONS) || | |
1015 | !strcmp(param->name, MAXBURSTLENGTH) || | |
1016 | !strcmp(param->name, FIRSTBURSTLENGTH) || | |
1017 | !strcmp(param->name, MAXOUTSTANDINGR2T) || | |
1018 | !strcmp(param->name, DEFAULTTIME2RETAIN) || | |
1019 | !strcmp(param->name, ERRORRECOVERYLEVEL)) { | |
1020 | if (proposer_value > acceptor_value) { | |
1021 | sprintf(buf, "%u", acceptor_value); | |
1022 | if (iscsi_update_param_value(param, | |
1023 | &buf[0]) < 0) | |
1024 | return -1; | |
1025 | } else { | |
1026 | if (iscsi_update_param_value(param, value) < 0) | |
1027 | return -1; | |
1028 | } | |
1029 | } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) { | |
1030 | if (acceptor_value > proposer_value) { | |
1031 | sprintf(buf, "%u", acceptor_value); | |
1032 | if (iscsi_update_param_value(param, | |
1033 | &buf[0]) < 0) | |
1034 | return -1; | |
1035 | } else { | |
1036 | if (iscsi_update_param_value(param, value) < 0) | |
1037 | return -1; | |
1038 | } | |
1039 | } else { | |
1040 | if (iscsi_update_param_value(param, value) < 0) | |
1041 | return -1; | |
1042 | } | |
1043 | ||
9977bb18 NB |
1044 | if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) { |
1045 | struct iscsi_param *param_mxdsl; | |
1046 | unsigned long long tmp; | |
1047 | int rc; | |
1048 | ||
57103d7f | 1049 | rc = kstrtoull(param->value, 0, &tmp); |
9977bb18 NB |
1050 | if (rc < 0) |
1051 | return -1; | |
1052 | ||
1053 | conn->conn_ops->MaxRecvDataSegmentLength = tmp; | |
1054 | pr_debug("Saving op->MaxRecvDataSegmentLength from" | |
1055 | " original initiator received value: %u\n", | |
1056 | conn->conn_ops->MaxRecvDataSegmentLength); | |
1057 | ||
1058 | param_mxdsl = iscsi_find_param_from_key( | |
1059 | MAXXMITDATASEGMENTLENGTH, | |
1060 | conn->param_list); | |
1061 | if (!param_mxdsl) | |
1062 | return -1; | |
1063 | ||
1064 | rc = iscsi_update_param_value(param, | |
1065 | param_mxdsl->value); | |
1066 | if (rc < 0) | |
1067 | return -1; | |
1068 | ||
1069 | pr_debug("Updated %s to target MXDSL value: %s\n", | |
1070 | param->name, param->value); | |
1071 | } | |
e48354ce | 1072 | } else if (IS_TYPE_VALUE_LIST(param)) { |
d2c27f0d | 1073 | negotiated_value = iscsi_check_valuelist_for_support( |
e48354ce | 1074 | param, value); |
d2c27f0d | 1075 | if (!negotiated_value) { |
e48354ce NB |
1076 | pr_err("Proposer's value list \"%s\" contains" |
1077 | " no valid values from Acceptor's value list" | |
1078 | " \"%s\".\n", value, param->value); | |
1079 | return -1; | |
1080 | } | |
d2c27f0d | 1081 | if (iscsi_update_param_value(param, negotiated_value) < 0) |
e48354ce NB |
1082 | return -1; |
1083 | } else if (IS_PHASE_DECLARATIVE(param)) { | |
1084 | if (iscsi_update_param_value(param, value) < 0) | |
1085 | return -1; | |
1086 | SET_PSTATE_REPLY_OPTIONAL(param); | |
1087 | } | |
1088 | ||
1089 | return 0; | |
1090 | } | |
1091 | ||
1092 | static int iscsi_check_proposer_state(struct iscsi_param *param, char *value) | |
1093 | { | |
1094 | if (IS_PSTATE_RESPONSE_GOT(param)) { | |
1095 | pr_err("Received key \"%s\" twice, protocol error.\n", | |
1096 | param->name); | |
1097 | return -1; | |
1098 | } | |
1099 | ||
c04a6091 | 1100 | if (IS_TYPE_VALUE_LIST(param)) { |
e48354ce NB |
1101 | char *comma_ptr = NULL, *tmp_ptr = NULL; |
1102 | ||
1103 | comma_ptr = strchr(value, ','); | |
1104 | if (comma_ptr) { | |
1105 | pr_err("Illegal \",\" in response for \"%s\".\n", | |
1106 | param->name); | |
1107 | return -1; | |
1108 | } | |
1109 | ||
1110 | tmp_ptr = iscsi_check_valuelist_for_support(param, value); | |
1111 | if (!tmp_ptr) | |
1112 | return -1; | |
1113 | } | |
1114 | ||
1115 | if (iscsi_update_param_value(param, value) < 0) | |
1116 | return -1; | |
1117 | ||
1118 | return 0; | |
1119 | } | |
1120 | ||
1121 | static int iscsi_check_value(struct iscsi_param *param, char *value) | |
1122 | { | |
1123 | char *comma_ptr = NULL; | |
1124 | ||
1125 | if (!strcmp(value, REJECT)) { | |
1126 | if (!strcmp(param->name, IFMARKINT) || | |
1127 | !strcmp(param->name, OFMARKINT)) { | |
1128 | /* | |
1129 | * Reject is not fatal for [I,O]FMarkInt, and causes | |
1130 | * [I,O]FMarker to be reset to No. (See iSCSI v20 A.3.2) | |
1131 | */ | |
1132 | SET_PSTATE_REJECT(param); | |
1133 | return 0; | |
1134 | } | |
1135 | pr_err("Received %s=%s\n", param->name, value); | |
1136 | return -1; | |
1137 | } | |
1138 | if (!strcmp(value, IRRELEVANT)) { | |
1139 | pr_debug("Received %s=%s\n", param->name, value); | |
1140 | SET_PSTATE_IRRELEVANT(param); | |
1141 | return 0; | |
1142 | } | |
1143 | if (!strcmp(value, NOTUNDERSTOOD)) { | |
1144 | if (!IS_PSTATE_PROPOSER(param)) { | |
1145 | pr_err("Received illegal offer %s=%s\n", | |
1146 | param->name, value); | |
1147 | return -1; | |
1148 | } | |
1149 | ||
1150 | /* #warning FIXME: Add check for X-ExtensionKey here */ | |
1151 | pr_err("Standard iSCSI key \"%s\" cannot be answered" | |
1152 | " with \"%s\", protocol error.\n", param->name, value); | |
1153 | return -1; | |
1154 | } | |
1155 | ||
1156 | do { | |
1157 | comma_ptr = NULL; | |
1158 | comma_ptr = strchr(value, ','); | |
1159 | ||
1160 | if (comma_ptr && !IS_TYPE_VALUE_LIST(param)) { | |
59e13d48 | 1161 | pr_err("Detected value separator \",\", but" |
e48354ce NB |
1162 | " key \"%s\" does not allow a value list," |
1163 | " protocol error.\n", param->name); | |
1164 | return -1; | |
1165 | } | |
1166 | if (comma_ptr) | |
1167 | *comma_ptr = '\0'; | |
1168 | ||
1169 | if (strlen(value) > VALUE_MAXLEN) { | |
1170 | pr_err("Value for key \"%s\" exceeds %d," | |
1171 | " protocol error.\n", param->name, | |
1172 | VALUE_MAXLEN); | |
1173 | return -1; | |
1174 | } | |
1175 | ||
1176 | if (IS_TYPE_BOOL_AND(param) || IS_TYPE_BOOL_OR(param)) { | |
1177 | if (iscsi_check_boolean_value(param, value) < 0) | |
1178 | return -1; | |
1179 | } else if (IS_TYPE_NUMBER(param)) { | |
1180 | if (iscsi_check_numerical_value(param, value) < 0) | |
1181 | return -1; | |
e48354ce NB |
1182 | } else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) { |
1183 | if (iscsi_check_string_or_list_value(param, value) < 0) | |
1184 | return -1; | |
1185 | } else { | |
1186 | pr_err("Huh? 0x%02x\n", param->type); | |
1187 | return -1; | |
1188 | } | |
1189 | ||
1190 | if (comma_ptr) | |
1191 | *comma_ptr++ = ','; | |
1192 | ||
1193 | value = comma_ptr; | |
1194 | } while (value); | |
1195 | ||
1196 | return 0; | |
1197 | } | |
1198 | ||
1199 | static struct iscsi_param *__iscsi_check_key( | |
1200 | char *key, | |
1201 | int sender, | |
1202 | struct iscsi_param_list *param_list) | |
1203 | { | |
1204 | struct iscsi_param *param; | |
1205 | ||
1206 | if (strlen(key) > KEY_MAXLEN) { | |
1207 | pr_err("Length of key name \"%s\" exceeds %d.\n", | |
1208 | key, KEY_MAXLEN); | |
1209 | return NULL; | |
1210 | } | |
1211 | ||
1212 | param = iscsi_find_param_from_key(key, param_list); | |
1213 | if (!param) | |
1214 | return NULL; | |
1215 | ||
1216 | if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) { | |
1217 | pr_err("Key \"%s\" may not be sent to %s," | |
1218 | " protocol error.\n", param->name, | |
1219 | (sender & SENDER_RECEIVER) ? "target" : "initiator"); | |
1220 | return NULL; | |
1221 | } | |
1222 | ||
1223 | if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) { | |
1224 | pr_err("Key \"%s\" may not be sent to %s," | |
1225 | " protocol error.\n", param->name, | |
1226 | (sender & SENDER_RECEIVER) ? "initiator" : "target"); | |
1227 | return NULL; | |
1228 | } | |
1229 | ||
1230 | return param; | |
1231 | } | |
1232 | ||
1233 | static struct iscsi_param *iscsi_check_key( | |
1234 | char *key, | |
1235 | int phase, | |
1236 | int sender, | |
1237 | struct iscsi_param_list *param_list) | |
1238 | { | |
1239 | struct iscsi_param *param; | |
1240 | /* | |
1241 | * Key name length must not exceed 63 bytes. (See iSCSI v20 5.1) | |
1242 | */ | |
1243 | if (strlen(key) > KEY_MAXLEN) { | |
1244 | pr_err("Length of key name \"%s\" exceeds %d.\n", | |
1245 | key, KEY_MAXLEN); | |
1246 | return NULL; | |
1247 | } | |
1248 | ||
1249 | param = iscsi_find_param_from_key(key, param_list); | |
1250 | if (!param) | |
1251 | return NULL; | |
1252 | ||
1253 | if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) { | |
1254 | pr_err("Key \"%s\" may not be sent to %s," | |
1255 | " protocol error.\n", param->name, | |
1256 | (sender & SENDER_RECEIVER) ? "target" : "initiator"); | |
1257 | return NULL; | |
1258 | } | |
1259 | if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) { | |
1260 | pr_err("Key \"%s\" may not be sent to %s," | |
1261 | " protocol error.\n", param->name, | |
1262 | (sender & SENDER_RECEIVER) ? "initiator" : "target"); | |
1263 | return NULL; | |
1264 | } | |
1265 | ||
1266 | if (IS_PSTATE_ACCEPTOR(param)) { | |
1267 | pr_err("Key \"%s\" received twice, protocol error.\n", | |
1268 | key); | |
1269 | return NULL; | |
1270 | } | |
1271 | ||
1272 | if (!phase) | |
1273 | return param; | |
1274 | ||
1275 | if (!(param->phase & phase)) { | |
1276 | pr_err("Key \"%s\" may not be negotiated during ", | |
1277 | param->name); | |
1278 | switch (phase) { | |
1279 | case PHASE_SECURITY: | |
1280 | pr_debug("Security phase.\n"); | |
1281 | break; | |
1282 | case PHASE_OPERATIONAL: | |
1283 | pr_debug("Operational phase.\n"); | |
db831018 | 1284 | break; |
e48354ce NB |
1285 | default: |
1286 | pr_debug("Unknown phase.\n"); | |
1287 | } | |
1288 | return NULL; | |
1289 | } | |
1290 | ||
1291 | return param; | |
1292 | } | |
1293 | ||
1294 | static int iscsi_enforce_integrity_rules( | |
1295 | u8 phase, | |
1296 | struct iscsi_param_list *param_list) | |
1297 | { | |
1298 | char *tmpptr; | |
1299 | u8 DataSequenceInOrder = 0; | |
1300 | u8 ErrorRecoveryLevel = 0, SessionType = 0; | |
e48354ce NB |
1301 | u32 FirstBurstLength = 0, MaxBurstLength = 0; |
1302 | struct iscsi_param *param = NULL; | |
1303 | ||
1304 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
1305 | if (!(param->phase & phase)) | |
1306 | continue; | |
1307 | if (!strcmp(param->name, SESSIONTYPE)) | |
1308 | if (!strcmp(param->value, NORMAL)) | |
1309 | SessionType = 1; | |
1310 | if (!strcmp(param->name, ERRORRECOVERYLEVEL)) | |
1311 | ErrorRecoveryLevel = simple_strtoul(param->value, | |
1312 | &tmpptr, 0); | |
1313 | if (!strcmp(param->name, DATASEQUENCEINORDER)) | |
1314 | if (!strcmp(param->value, YES)) | |
1315 | DataSequenceInOrder = 1; | |
1316 | if (!strcmp(param->name, MAXBURSTLENGTH)) | |
1317 | MaxBurstLength = simple_strtoul(param->value, | |
1318 | &tmpptr, 0); | |
e48354ce NB |
1319 | } |
1320 | ||
1321 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
1322 | if (!(param->phase & phase)) | |
1323 | continue; | |
c04a6091 | 1324 | if (!SessionType && !IS_PSTATE_ACCEPTOR(param)) |
e48354ce NB |
1325 | continue; |
1326 | if (!strcmp(param->name, MAXOUTSTANDINGR2T) && | |
1327 | DataSequenceInOrder && (ErrorRecoveryLevel > 0)) { | |
1328 | if (strcmp(param->value, "1")) { | |
1329 | if (iscsi_update_param_value(param, "1") < 0) | |
1330 | return -1; | |
1331 | pr_debug("Reset \"%s\" to \"%s\".\n", | |
1332 | param->name, param->value); | |
1333 | } | |
1334 | } | |
1335 | if (!strcmp(param->name, MAXCONNECTIONS) && !SessionType) { | |
1336 | if (strcmp(param->value, "1")) { | |
1337 | if (iscsi_update_param_value(param, "1") < 0) | |
1338 | return -1; | |
1339 | pr_debug("Reset \"%s\" to \"%s\".\n", | |
1340 | param->name, param->value); | |
1341 | } | |
1342 | } | |
1343 | if (!strcmp(param->name, FIRSTBURSTLENGTH)) { | |
1344 | FirstBurstLength = simple_strtoul(param->value, | |
1345 | &tmpptr, 0); | |
1346 | if (FirstBurstLength > MaxBurstLength) { | |
1be2956d DC |
1347 | char tmpbuf[11]; |
1348 | memset(tmpbuf, 0, sizeof(tmpbuf)); | |
e48354ce NB |
1349 | sprintf(tmpbuf, "%u", MaxBurstLength); |
1350 | if (iscsi_update_param_value(param, tmpbuf)) | |
1351 | return -1; | |
1352 | pr_debug("Reset \"%s\" to \"%s\".\n", | |
1353 | param->name, param->value); | |
1354 | } | |
1355 | } | |
e48354ce NB |
1356 | } |
1357 | ||
1358 | return 0; | |
1359 | } | |
1360 | ||
1361 | int iscsi_decode_text_input( | |
1362 | u8 phase, | |
1363 | u8 sender, | |
1364 | char *textbuf, | |
1365 | u32 length, | |
9977bb18 | 1366 | struct iscsi_conn *conn) |
e48354ce | 1367 | { |
9977bb18 | 1368 | struct iscsi_param_list *param_list = conn->param_list; |
e48354ce NB |
1369 | char *tmpbuf, *start = NULL, *end = NULL; |
1370 | ||
1371 | tmpbuf = kzalloc(length + 1, GFP_KERNEL); | |
1372 | if (!tmpbuf) { | |
cee6029e | 1373 | pr_err("Unable to allocate %u + 1 bytes for tmpbuf.\n", length); |
82a819e8 | 1374 | return -ENOMEM; |
e48354ce NB |
1375 | } |
1376 | ||
1377 | memcpy(tmpbuf, textbuf, length); | |
1378 | tmpbuf[length] = '\0'; | |
1379 | start = tmpbuf; | |
1380 | end = (start + length); | |
1381 | ||
1382 | while (start < end) { | |
1383 | char *key, *value; | |
1384 | struct iscsi_param *param; | |
1385 | ||
1386 | if (iscsi_extract_key_value(start, &key, &value) < 0) { | |
1387 | kfree(tmpbuf); | |
1388 | return -1; | |
1389 | } | |
1390 | ||
1391 | pr_debug("Got key: %s=%s\n", key, value); | |
1392 | ||
1393 | if (phase & PHASE_SECURITY) { | |
1394 | if (iscsi_check_for_auth_key(key) > 0) { | |
e48354ce NB |
1395 | kfree(tmpbuf); |
1396 | return 1; | |
1397 | } | |
1398 | } | |
1399 | ||
1400 | param = iscsi_check_key(key, phase, sender, param_list); | |
1401 | if (!param) { | |
1402 | if (iscsi_add_notunderstood_response(key, | |
1403 | value, param_list) < 0) { | |
1404 | kfree(tmpbuf); | |
1405 | return -1; | |
1406 | } | |
1407 | start += strlen(key) + strlen(value) + 2; | |
1408 | continue; | |
1409 | } | |
1410 | if (iscsi_check_value(param, value) < 0) { | |
1411 | kfree(tmpbuf); | |
1412 | return -1; | |
1413 | } | |
1414 | ||
1415 | start += strlen(key) + strlen(value) + 2; | |
1416 | ||
1417 | if (IS_PSTATE_PROPOSER(param)) { | |
1418 | if (iscsi_check_proposer_state(param, value) < 0) { | |
1419 | kfree(tmpbuf); | |
1420 | return -1; | |
1421 | } | |
1422 | SET_PSTATE_RESPONSE_GOT(param); | |
1423 | } else { | |
9977bb18 | 1424 | if (iscsi_check_acceptor_state(param, value, conn) < 0) { |
e48354ce NB |
1425 | kfree(tmpbuf); |
1426 | return -1; | |
1427 | } | |
1428 | SET_PSTATE_ACCEPTOR(param); | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | kfree(tmpbuf); | |
1433 | return 0; | |
1434 | } | |
1435 | ||
1436 | int iscsi_encode_text_output( | |
1437 | u8 phase, | |
1438 | u8 sender, | |
1439 | char *textbuf, | |
1440 | u32 *length, | |
1441 | struct iscsi_param_list *param_list) | |
1442 | { | |
1443 | char *output_buf = NULL; | |
1444 | struct iscsi_extra_response *er; | |
1445 | struct iscsi_param *param; | |
1446 | ||
1447 | output_buf = textbuf + *length; | |
1448 | ||
1449 | if (iscsi_enforce_integrity_rules(phase, param_list) < 0) | |
1450 | return -1; | |
1451 | ||
1452 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
1453 | if (!(param->sender & sender)) | |
1454 | continue; | |
1455 | if (IS_PSTATE_ACCEPTOR(param) && | |
1456 | !IS_PSTATE_RESPONSE_SENT(param) && | |
1457 | !IS_PSTATE_REPLY_OPTIONAL(param) && | |
1458 | (param->phase & phase)) { | |
1459 | *length += sprintf(output_buf, "%s=%s", | |
1460 | param->name, param->value); | |
1461 | *length += 1; | |
1462 | output_buf = textbuf + *length; | |
1463 | SET_PSTATE_RESPONSE_SENT(param); | |
1464 | pr_debug("Sending key: %s=%s\n", | |
1465 | param->name, param->value); | |
1466 | continue; | |
1467 | } | |
1468 | if (IS_PSTATE_NEGOTIATE(param) && | |
1469 | !IS_PSTATE_ACCEPTOR(param) && | |
1470 | !IS_PSTATE_PROPOSER(param) && | |
1471 | (param->phase & phase)) { | |
1472 | *length += sprintf(output_buf, "%s=%s", | |
1473 | param->name, param->value); | |
1474 | *length += 1; | |
1475 | output_buf = textbuf + *length; | |
1476 | SET_PSTATE_PROPOSER(param); | |
1477 | iscsi_check_proposer_for_optional_reply(param); | |
1478 | pr_debug("Sending key: %s=%s\n", | |
1479 | param->name, param->value); | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | list_for_each_entry(er, ¶m_list->extra_response_list, er_list) { | |
1484 | *length += sprintf(output_buf, "%s=%s", er->key, er->value); | |
1485 | *length += 1; | |
1486 | output_buf = textbuf + *length; | |
1487 | pr_debug("Sending key: %s=%s\n", er->key, er->value); | |
1488 | } | |
1489 | iscsi_release_extra_responses(param_list); | |
1490 | ||
1491 | return 0; | |
1492 | } | |
1493 | ||
1494 | int iscsi_check_negotiated_keys(struct iscsi_param_list *param_list) | |
1495 | { | |
1496 | int ret = 0; | |
1497 | struct iscsi_param *param; | |
1498 | ||
1499 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
1500 | if (IS_PSTATE_NEGOTIATE(param) && | |
1501 | IS_PSTATE_PROPOSER(param) && | |
1502 | !IS_PSTATE_RESPONSE_GOT(param) && | |
1503 | !IS_PSTATE_REPLY_OPTIONAL(param) && | |
1504 | !IS_PHASE_DECLARATIVE(param)) { | |
1505 | pr_err("No response for proposed key \"%s\".\n", | |
1506 | param->name); | |
1507 | ret = -1; | |
1508 | } | |
1509 | } | |
1510 | ||
1511 | return ret; | |
1512 | } | |
1513 | ||
1514 | int iscsi_change_param_value( | |
1515 | char *keyvalue, | |
1516 | struct iscsi_param_list *param_list, | |
1517 | int check_key) | |
1518 | { | |
1519 | char *key = NULL, *value = NULL; | |
1520 | struct iscsi_param *param; | |
1521 | int sender = 0; | |
1522 | ||
1523 | if (iscsi_extract_key_value(keyvalue, &key, &value) < 0) | |
1524 | return -1; | |
1525 | ||
1526 | if (!check_key) { | |
1527 | param = __iscsi_check_key(keyvalue, sender, param_list); | |
1528 | if (!param) | |
1529 | return -1; | |
1530 | } else { | |
1531 | param = iscsi_check_key(keyvalue, 0, sender, param_list); | |
1532 | if (!param) | |
1533 | return -1; | |
1534 | ||
1535 | param->set_param = 1; | |
1536 | if (iscsi_check_value(param, value) < 0) { | |
1537 | param->set_param = 0; | |
1538 | return -1; | |
1539 | } | |
1540 | param->set_param = 0; | |
1541 | } | |
1542 | ||
1543 | if (iscsi_update_param_value(param, value) < 0) | |
1544 | return -1; | |
1545 | ||
1546 | return 0; | |
1547 | } | |
1548 | ||
1549 | void iscsi_set_connection_parameters( | |
1550 | struct iscsi_conn_ops *ops, | |
1551 | struct iscsi_param_list *param_list) | |
1552 | { | |
1553 | char *tmpptr; | |
1554 | struct iscsi_param *param; | |
1555 | ||
1556 | pr_debug("---------------------------------------------------" | |
1557 | "---------------\n"); | |
1558 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
e004cb25 NB |
1559 | /* |
1560 | * Special case to set MAXXMITDATASEGMENTLENGTH from the | |
1561 | * target requested MaxRecvDataSegmentLength, even though | |
1562 | * this key is not sent over the wire. | |
1563 | */ | |
1564 | if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) { | |
1565 | ops->MaxXmitDataSegmentLength = | |
1566 | simple_strtoul(param->value, &tmpptr, 0); | |
1567 | pr_debug("MaxXmitDataSegmentLength: %s\n", | |
1568 | param->value); | |
1569 | } | |
1570 | ||
e48354ce NB |
1571 | if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param)) |
1572 | continue; | |
1573 | if (!strcmp(param->name, AUTHMETHOD)) { | |
1574 | pr_debug("AuthMethod: %s\n", | |
1575 | param->value); | |
1576 | } else if (!strcmp(param->name, HEADERDIGEST)) { | |
1577 | ops->HeaderDigest = !strcmp(param->value, CRC32C); | |
1578 | pr_debug("HeaderDigest: %s\n", | |
1579 | param->value); | |
1580 | } else if (!strcmp(param->name, DATADIGEST)) { | |
1581 | ops->DataDigest = !strcmp(param->value, CRC32C); | |
1582 | pr_debug("DataDigest: %s\n", | |
1583 | param->value); | |
1584 | } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) { | |
9977bb18 NB |
1585 | /* |
1586 | * At this point iscsi_check_acceptor_state() will have | |
1587 | * set ops->MaxRecvDataSegmentLength from the original | |
1588 | * initiator provided value. | |
1589 | */ | |
1590 | pr_debug("MaxRecvDataSegmentLength: %u\n", | |
1591 | ops->MaxRecvDataSegmentLength); | |
03aa2070 NB |
1592 | } else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) { |
1593 | ops->InitiatorRecvDataSegmentLength = | |
1594 | simple_strtoul(param->value, &tmpptr, 0); | |
1595 | pr_debug("InitiatorRecvDataSegmentLength: %s\n", | |
1596 | param->value); | |
1597 | ops->MaxRecvDataSegmentLength = | |
1598 | ops->InitiatorRecvDataSegmentLength; | |
1599 | pr_debug("Set MRDSL from InitiatorRecvDataSegmentLength\n"); | |
1600 | } else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) { | |
1601 | ops->TargetRecvDataSegmentLength = | |
1602 | simple_strtoul(param->value, &tmpptr, 0); | |
1603 | pr_debug("TargetRecvDataSegmentLength: %s\n", | |
1604 | param->value); | |
1605 | ops->MaxXmitDataSegmentLength = | |
1606 | ops->TargetRecvDataSegmentLength; | |
1607 | pr_debug("Set MXDSL from TargetRecvDataSegmentLength\n"); | |
e48354ce NB |
1608 | } |
1609 | } | |
1610 | pr_debug("----------------------------------------------------" | |
1611 | "--------------\n"); | |
1612 | } | |
1613 | ||
1614 | void iscsi_set_session_parameters( | |
1615 | struct iscsi_sess_ops *ops, | |
1616 | struct iscsi_param_list *param_list, | |
1617 | int leading) | |
1618 | { | |
1619 | char *tmpptr; | |
1620 | struct iscsi_param *param; | |
1621 | ||
1622 | pr_debug("----------------------------------------------------" | |
1623 | "--------------\n"); | |
1624 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
1625 | if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param)) | |
1626 | continue; | |
1627 | if (!strcmp(param->name, INITIATORNAME)) { | |
1628 | if (!param->value) | |
1629 | continue; | |
1630 | if (leading) | |
1631 | snprintf(ops->InitiatorName, | |
1632 | sizeof(ops->InitiatorName), | |
1633 | "%s", param->value); | |
1634 | pr_debug("InitiatorName: %s\n", | |
1635 | param->value); | |
1636 | } else if (!strcmp(param->name, INITIATORALIAS)) { | |
1637 | if (!param->value) | |
1638 | continue; | |
1639 | snprintf(ops->InitiatorAlias, | |
1640 | sizeof(ops->InitiatorAlias), | |
1641 | "%s", param->value); | |
1642 | pr_debug("InitiatorAlias: %s\n", | |
1643 | param->value); | |
1644 | } else if (!strcmp(param->name, TARGETNAME)) { | |
1645 | if (!param->value) | |
1646 | continue; | |
1647 | if (leading) | |
1648 | snprintf(ops->TargetName, | |
1649 | sizeof(ops->TargetName), | |
1650 | "%s", param->value); | |
1651 | pr_debug("TargetName: %s\n", | |
1652 | param->value); | |
1653 | } else if (!strcmp(param->name, TARGETALIAS)) { | |
1654 | if (!param->value) | |
1655 | continue; | |
1656 | snprintf(ops->TargetAlias, sizeof(ops->TargetAlias), | |
1657 | "%s", param->value); | |
1658 | pr_debug("TargetAlias: %s\n", | |
1659 | param->value); | |
1660 | } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) { | |
1661 | ops->TargetPortalGroupTag = | |
1662 | simple_strtoul(param->value, &tmpptr, 0); | |
1663 | pr_debug("TargetPortalGroupTag: %s\n", | |
1664 | param->value); | |
1665 | } else if (!strcmp(param->name, MAXCONNECTIONS)) { | |
1666 | ops->MaxConnections = | |
1667 | simple_strtoul(param->value, &tmpptr, 0); | |
1668 | pr_debug("MaxConnections: %s\n", | |
1669 | param->value); | |
1670 | } else if (!strcmp(param->name, INITIALR2T)) { | |
1671 | ops->InitialR2T = !strcmp(param->value, YES); | |
5a342521 | 1672 | pr_debug("InitialR2T: %s\n", |
e48354ce NB |
1673 | param->value); |
1674 | } else if (!strcmp(param->name, IMMEDIATEDATA)) { | |
1675 | ops->ImmediateData = !strcmp(param->value, YES); | |
1676 | pr_debug("ImmediateData: %s\n", | |
1677 | param->value); | |
1678 | } else if (!strcmp(param->name, MAXBURSTLENGTH)) { | |
1679 | ops->MaxBurstLength = | |
1680 | simple_strtoul(param->value, &tmpptr, 0); | |
1681 | pr_debug("MaxBurstLength: %s\n", | |
1682 | param->value); | |
1683 | } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) { | |
1684 | ops->FirstBurstLength = | |
1685 | simple_strtoul(param->value, &tmpptr, 0); | |
1686 | pr_debug("FirstBurstLength: %s\n", | |
1687 | param->value); | |
1688 | } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) { | |
1689 | ops->DefaultTime2Wait = | |
1690 | simple_strtoul(param->value, &tmpptr, 0); | |
1691 | pr_debug("DefaultTime2Wait: %s\n", | |
1692 | param->value); | |
1693 | } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) { | |
1694 | ops->DefaultTime2Retain = | |
1695 | simple_strtoul(param->value, &tmpptr, 0); | |
1696 | pr_debug("DefaultTime2Retain: %s\n", | |
1697 | param->value); | |
1698 | } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) { | |
1699 | ops->MaxOutstandingR2T = | |
1700 | simple_strtoul(param->value, &tmpptr, 0); | |
1701 | pr_debug("MaxOutstandingR2T: %s\n", | |
1702 | param->value); | |
1703 | } else if (!strcmp(param->name, DATAPDUINORDER)) { | |
1704 | ops->DataPDUInOrder = !strcmp(param->value, YES); | |
1705 | pr_debug("DataPDUInOrder: %s\n", | |
1706 | param->value); | |
1707 | } else if (!strcmp(param->name, DATASEQUENCEINORDER)) { | |
1708 | ops->DataSequenceInOrder = !strcmp(param->value, YES); | |
1709 | pr_debug("DataSequenceInOrder: %s\n", | |
1710 | param->value); | |
1711 | } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) { | |
1712 | ops->ErrorRecoveryLevel = | |
1713 | simple_strtoul(param->value, &tmpptr, 0); | |
1714 | pr_debug("ErrorRecoveryLevel: %s\n", | |
1715 | param->value); | |
1716 | } else if (!strcmp(param->name, SESSIONTYPE)) { | |
1717 | ops->SessionType = !strcmp(param->value, DISCOVERY); | |
1718 | pr_debug("SessionType: %s\n", | |
1719 | param->value); | |
af40bb0b | 1720 | } else if (!strcmp(param->name, RDMAEXTENSIONS)) { |
03aa2070 NB |
1721 | ops->RDMAExtensions = !strcmp(param->value, YES); |
1722 | pr_debug("RDMAExtensions: %s\n", | |
1723 | param->value); | |
e48354ce NB |
1724 | } |
1725 | } | |
1726 | pr_debug("----------------------------------------------------" | |
1727 | "--------------\n"); | |
1728 | ||
1729 | } |