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c942fddf | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
e48354ce NB |
2 | /******************************************************************************* |
3 | * This file contains main functions related to iSCSI Parameter negotiation. | |
4 | * | |
4c76251e | 5 | * (c) Copyright 2007-2013 Datera, Inc. |
e48354ce NB |
6 | * |
7 | * Author: Nicholas A. Bellinger <nab@linux-iscsi.org> | |
8 | * | |
e48354ce NB |
9 | ******************************************************************************/ |
10 | ||
11 | #include <linux/slab.h> | |
8dcf07be | 12 | #include <linux/uio.h> /* struct kvec */ |
67f091f2 | 13 | #include <target/iscsi/iscsi_target_core.h> |
e48354ce NB |
14 | #include "iscsi_target_util.h" |
15 | #include "iscsi_target_parameters.h" | |
16 | ||
17 | int iscsi_login_rx_data( | |
be36d683 | 18 | struct iscsit_conn *conn, |
e48354ce NB |
19 | char *buf, |
20 | int length) | |
21 | { | |
22 | int rx_got; | |
23 | struct kvec iov; | |
24 | ||
25 | memset(&iov, 0, sizeof(struct kvec)); | |
26 | iov.iov_len = length; | |
27 | iov.iov_base = buf; | |
28 | ||
e48354ce NB |
29 | rx_got = rx_data(conn, &iov, 1, length); |
30 | if (rx_got != length) { | |
31 | pr_err("rx_data returned %d, expecting %d.\n", | |
32 | rx_got, length); | |
33 | return -1; | |
34 | } | |
35 | ||
36 | return 0 ; | |
37 | } | |
38 | ||
39 | int iscsi_login_tx_data( | |
be36d683 | 40 | struct iscsit_conn *conn, |
e48354ce NB |
41 | char *pdu_buf, |
42 | char *text_buf, | |
43 | int text_length) | |
44 | { | |
baa4d64b | 45 | int length, tx_sent, iov_cnt = 1; |
e48354ce NB |
46 | struct kvec iov[2]; |
47 | ||
48 | length = (ISCSI_HDR_LEN + text_length); | |
49 | ||
50 | memset(&iov[0], 0, 2 * sizeof(struct kvec)); | |
51 | iov[0].iov_len = ISCSI_HDR_LEN; | |
52 | iov[0].iov_base = pdu_buf; | |
baa4d64b NB |
53 | |
54 | if (text_buf && text_length) { | |
55 | iov[1].iov_len = text_length; | |
56 | iov[1].iov_base = text_buf; | |
57 | iov_cnt++; | |
58 | } | |
e48354ce | 59 | |
baa4d64b | 60 | tx_sent = tx_data(conn, &iov[0], iov_cnt, length); |
e48354ce NB |
61 | if (tx_sent != length) { |
62 | pr_err("tx_data returned %d, expecting %d.\n", | |
63 | tx_sent, length); | |
64 | return -1; | |
65 | } | |
66 | ||
67 | return 0; | |
68 | } | |
69 | ||
70 | void iscsi_dump_conn_ops(struct iscsi_conn_ops *conn_ops) | |
71 | { | |
72 | pr_debug("HeaderDigest: %s\n", (conn_ops->HeaderDigest) ? | |
73 | "CRC32C" : "None"); | |
74 | pr_debug("DataDigest: %s\n", (conn_ops->DataDigest) ? | |
75 | "CRC32C" : "None"); | |
76 | pr_debug("MaxRecvDataSegmentLength: %u\n", | |
77 | conn_ops->MaxRecvDataSegmentLength); | |
e48354ce NB |
78 | } |
79 | ||
80 | void iscsi_dump_sess_ops(struct iscsi_sess_ops *sess_ops) | |
81 | { | |
82 | pr_debug("InitiatorName: %s\n", sess_ops->InitiatorName); | |
83 | pr_debug("InitiatorAlias: %s\n", sess_ops->InitiatorAlias); | |
84 | pr_debug("TargetName: %s\n", sess_ops->TargetName); | |
85 | pr_debug("TargetAlias: %s\n", sess_ops->TargetAlias); | |
86 | pr_debug("TargetPortalGroupTag: %hu\n", | |
87 | sess_ops->TargetPortalGroupTag); | |
88 | pr_debug("MaxConnections: %hu\n", sess_ops->MaxConnections); | |
89 | pr_debug("InitialR2T: %s\n", | |
90 | (sess_ops->InitialR2T) ? "Yes" : "No"); | |
91 | pr_debug("ImmediateData: %s\n", (sess_ops->ImmediateData) ? | |
92 | "Yes" : "No"); | |
93 | pr_debug("MaxBurstLength: %u\n", sess_ops->MaxBurstLength); | |
94 | pr_debug("FirstBurstLength: %u\n", sess_ops->FirstBurstLength); | |
95 | pr_debug("DefaultTime2Wait: %hu\n", sess_ops->DefaultTime2Wait); | |
96 | pr_debug("DefaultTime2Retain: %hu\n", | |
97 | sess_ops->DefaultTime2Retain); | |
98 | pr_debug("MaxOutstandingR2T: %hu\n", | |
99 | sess_ops->MaxOutstandingR2T); | |
100 | pr_debug("DataPDUInOrder: %s\n", | |
101 | (sess_ops->DataPDUInOrder) ? "Yes" : "No"); | |
102 | pr_debug("DataSequenceInOrder: %s\n", | |
103 | (sess_ops->DataSequenceInOrder) ? "Yes" : "No"); | |
104 | pr_debug("ErrorRecoveryLevel: %hu\n", | |
105 | sess_ops->ErrorRecoveryLevel); | |
106 | pr_debug("SessionType: %s\n", (sess_ops->SessionType) ? | |
107 | "Discovery" : "Normal"); | |
108 | } | |
109 | ||
110 | void iscsi_print_params(struct iscsi_param_list *param_list) | |
111 | { | |
112 | struct iscsi_param *param; | |
113 | ||
114 | list_for_each_entry(param, ¶m_list->param_list, p_list) | |
115 | pr_debug("%s: %s\n", param->name, param->value); | |
116 | } | |
117 | ||
118 | static struct iscsi_param *iscsi_set_default_param(struct iscsi_param_list *param_list, | |
119 | char *name, char *value, u8 phase, u8 scope, u8 sender, | |
120 | u16 type_range, u8 use) | |
121 | { | |
122 | struct iscsi_param *param = NULL; | |
123 | ||
124 | param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL); | |
125 | if (!param) { | |
126 | pr_err("Unable to allocate memory for parameter.\n"); | |
127 | goto out; | |
128 | } | |
129 | INIT_LIST_HEAD(¶m->p_list); | |
130 | ||
ed72a4d5 | 131 | param->name = kstrdup(name, GFP_KERNEL); |
e48354ce NB |
132 | if (!param->name) { |
133 | pr_err("Unable to allocate memory for parameter name.\n"); | |
134 | goto out; | |
135 | } | |
136 | ||
ed72a4d5 | 137 | param->value = kstrdup(value, GFP_KERNEL); |
e48354ce NB |
138 | if (!param->value) { |
139 | pr_err("Unable to allocate memory for parameter value.\n"); | |
140 | goto out; | |
141 | } | |
142 | ||
e48354ce NB |
143 | param->phase = phase; |
144 | param->scope = scope; | |
145 | param->sender = sender; | |
146 | param->use = use; | |
147 | param->type_range = type_range; | |
148 | ||
149 | switch (param->type_range) { | |
150 | case TYPERANGE_BOOL_AND: | |
151 | param->type = TYPE_BOOL_AND; | |
152 | break; | |
153 | case TYPERANGE_BOOL_OR: | |
154 | param->type = TYPE_BOOL_OR; | |
155 | break; | |
156 | case TYPERANGE_0_TO_2: | |
157 | case TYPERANGE_0_TO_3600: | |
158 | case TYPERANGE_0_TO_32767: | |
159 | case TYPERANGE_0_TO_65535: | |
160 | case TYPERANGE_1_TO_65535: | |
161 | case TYPERANGE_2_TO_3600: | |
162 | case TYPERANGE_512_TO_16777215: | |
163 | param->type = TYPE_NUMBER; | |
164 | break; | |
165 | case TYPERANGE_AUTH: | |
166 | case TYPERANGE_DIGEST: | |
167 | param->type = TYPE_VALUE_LIST | TYPE_STRING; | |
168 | break; | |
e48354ce NB |
169 | case TYPERANGE_ISCSINAME: |
170 | case TYPERANGE_SESSIONTYPE: | |
171 | case TYPERANGE_TARGETADDRESS: | |
172 | case TYPERANGE_UTF8: | |
173 | param->type = TYPE_STRING; | |
174 | break; | |
175 | default: | |
176 | pr_err("Unknown type_range 0x%02x\n", | |
177 | param->type_range); | |
178 | goto out; | |
179 | } | |
180 | list_add_tail(¶m->p_list, ¶m_list->param_list); | |
181 | ||
182 | return param; | |
183 | out: | |
184 | if (param) { | |
185 | kfree(param->value); | |
186 | kfree(param->name); | |
187 | kfree(param); | |
188 | } | |
189 | ||
190 | return NULL; | |
191 | } | |
192 | ||
193 | /* #warning Add extension keys */ | |
194 | int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr) | |
195 | { | |
196 | struct iscsi_param *param = NULL; | |
197 | struct iscsi_param_list *pl; | |
198 | ||
199 | pl = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL); | |
200 | if (!pl) { | |
201 | pr_err("Unable to allocate memory for" | |
202 | " struct iscsi_param_list.\n"); | |
82a819e8 | 203 | return -ENOMEM; |
e48354ce NB |
204 | } |
205 | INIT_LIST_HEAD(&pl->param_list); | |
206 | INIT_LIST_HEAD(&pl->extra_response_list); | |
207 | ||
208 | /* | |
209 | * The format for setting the initial parameter definitions are: | |
210 | * | |
211 | * Parameter name: | |
212 | * Initial value: | |
213 | * Allowable phase: | |
214 | * Scope: | |
215 | * Allowable senders: | |
216 | * Typerange: | |
217 | * Use: | |
218 | */ | |
219 | param = iscsi_set_default_param(pl, AUTHMETHOD, INITIAL_AUTHMETHOD, | |
220 | PHASE_SECURITY, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
221 | TYPERANGE_AUTH, USE_INITIAL_ONLY); | |
222 | if (!param) | |
223 | goto out; | |
224 | ||
225 | param = iscsi_set_default_param(pl, HEADERDIGEST, INITIAL_HEADERDIGEST, | |
226 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
227 | TYPERANGE_DIGEST, USE_INITIAL_ONLY); | |
228 | if (!param) | |
229 | goto out; | |
230 | ||
231 | param = iscsi_set_default_param(pl, DATADIGEST, INITIAL_DATADIGEST, | |
232 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
233 | TYPERANGE_DIGEST, USE_INITIAL_ONLY); | |
234 | if (!param) | |
235 | goto out; | |
236 | ||
237 | param = iscsi_set_default_param(pl, MAXCONNECTIONS, | |
238 | INITIAL_MAXCONNECTIONS, PHASE_OPERATIONAL, | |
239 | SCOPE_SESSION_WIDE, SENDER_BOTH, | |
240 | TYPERANGE_1_TO_65535, USE_LEADING_ONLY); | |
241 | if (!param) | |
242 | goto out; | |
243 | ||
244 | param = iscsi_set_default_param(pl, SENDTARGETS, INITIAL_SENDTARGETS, | |
245 | PHASE_FFP0, SCOPE_SESSION_WIDE, SENDER_INITIATOR, | |
246 | TYPERANGE_UTF8, 0); | |
247 | if (!param) | |
248 | goto out; | |
249 | ||
250 | param = iscsi_set_default_param(pl, TARGETNAME, INITIAL_TARGETNAME, | |
251 | PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
252 | TYPERANGE_ISCSINAME, USE_ALL); | |
253 | if (!param) | |
254 | goto out; | |
255 | ||
256 | param = iscsi_set_default_param(pl, INITIATORNAME, | |
257 | INITIAL_INITIATORNAME, PHASE_DECLARATIVE, | |
258 | SCOPE_SESSION_WIDE, SENDER_INITIATOR, | |
259 | TYPERANGE_ISCSINAME, USE_INITIAL_ONLY); | |
260 | if (!param) | |
261 | goto out; | |
262 | ||
263 | param = iscsi_set_default_param(pl, TARGETALIAS, INITIAL_TARGETALIAS, | |
264 | PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET, | |
265 | TYPERANGE_UTF8, USE_ALL); | |
266 | if (!param) | |
267 | goto out; | |
268 | ||
269 | param = iscsi_set_default_param(pl, INITIATORALIAS, | |
270 | INITIAL_INITIATORALIAS, PHASE_DECLARATIVE, | |
271 | SCOPE_SESSION_WIDE, SENDER_INITIATOR, TYPERANGE_UTF8, | |
272 | USE_ALL); | |
273 | if (!param) | |
274 | goto out; | |
275 | ||
276 | param = iscsi_set_default_param(pl, TARGETADDRESS, | |
277 | INITIAL_TARGETADDRESS, PHASE_DECLARATIVE, | |
278 | SCOPE_SESSION_WIDE, SENDER_TARGET, | |
279 | TYPERANGE_TARGETADDRESS, USE_ALL); | |
280 | if (!param) | |
281 | goto out; | |
282 | ||
283 | param = iscsi_set_default_param(pl, TARGETPORTALGROUPTAG, | |
284 | INITIAL_TARGETPORTALGROUPTAG, | |
285 | PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET, | |
286 | TYPERANGE_0_TO_65535, USE_INITIAL_ONLY); | |
287 | if (!param) | |
288 | goto out; | |
289 | ||
290 | param = iscsi_set_default_param(pl, INITIALR2T, INITIAL_INITIALR2T, | |
291 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
292 | TYPERANGE_BOOL_OR, USE_LEADING_ONLY); | |
293 | if (!param) | |
294 | goto out; | |
295 | ||
296 | param = iscsi_set_default_param(pl, IMMEDIATEDATA, | |
297 | INITIAL_IMMEDIATEDATA, PHASE_OPERATIONAL, | |
298 | SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_AND, | |
299 | USE_LEADING_ONLY); | |
300 | if (!param) | |
301 | goto out; | |
302 | ||
e004cb25 NB |
303 | param = iscsi_set_default_param(pl, MAXXMITDATASEGMENTLENGTH, |
304 | INITIAL_MAXXMITDATASEGMENTLENGTH, | |
305 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
306 | TYPERANGE_512_TO_16777215, USE_ALL); | |
307 | if (!param) | |
308 | goto out; | |
309 | ||
e48354ce NB |
310 | param = iscsi_set_default_param(pl, MAXRECVDATASEGMENTLENGTH, |
311 | INITIAL_MAXRECVDATASEGMENTLENGTH, | |
312 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
313 | TYPERANGE_512_TO_16777215, USE_ALL); | |
314 | if (!param) | |
315 | goto out; | |
316 | ||
317 | param = iscsi_set_default_param(pl, MAXBURSTLENGTH, | |
318 | INITIAL_MAXBURSTLENGTH, PHASE_OPERATIONAL, | |
319 | SCOPE_SESSION_WIDE, SENDER_BOTH, | |
320 | TYPERANGE_512_TO_16777215, USE_LEADING_ONLY); | |
321 | if (!param) | |
322 | goto out; | |
323 | ||
324 | param = iscsi_set_default_param(pl, FIRSTBURSTLENGTH, | |
325 | INITIAL_FIRSTBURSTLENGTH, | |
326 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
327 | TYPERANGE_512_TO_16777215, USE_LEADING_ONLY); | |
328 | if (!param) | |
329 | goto out; | |
330 | ||
331 | param = iscsi_set_default_param(pl, DEFAULTTIME2WAIT, | |
332 | INITIAL_DEFAULTTIME2WAIT, | |
333 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
334 | TYPERANGE_0_TO_3600, USE_LEADING_ONLY); | |
335 | if (!param) | |
336 | goto out; | |
337 | ||
338 | param = iscsi_set_default_param(pl, DEFAULTTIME2RETAIN, | |
339 | INITIAL_DEFAULTTIME2RETAIN, | |
340 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
341 | TYPERANGE_0_TO_3600, USE_LEADING_ONLY); | |
342 | if (!param) | |
343 | goto out; | |
344 | ||
345 | param = iscsi_set_default_param(pl, MAXOUTSTANDINGR2T, | |
346 | INITIAL_MAXOUTSTANDINGR2T, | |
347 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
348 | TYPERANGE_1_TO_65535, USE_LEADING_ONLY); | |
349 | if (!param) | |
350 | goto out; | |
351 | ||
352 | param = iscsi_set_default_param(pl, DATAPDUINORDER, | |
353 | INITIAL_DATAPDUINORDER, PHASE_OPERATIONAL, | |
354 | SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_OR, | |
355 | USE_LEADING_ONLY); | |
356 | if (!param) | |
357 | goto out; | |
358 | ||
359 | param = iscsi_set_default_param(pl, DATASEQUENCEINORDER, | |
360 | INITIAL_DATASEQUENCEINORDER, | |
361 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
362 | TYPERANGE_BOOL_OR, USE_LEADING_ONLY); | |
363 | if (!param) | |
364 | goto out; | |
365 | ||
366 | param = iscsi_set_default_param(pl, ERRORRECOVERYLEVEL, | |
367 | INITIAL_ERRORRECOVERYLEVEL, | |
368 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, | |
369 | TYPERANGE_0_TO_2, USE_LEADING_ONLY); | |
370 | if (!param) | |
371 | goto out; | |
372 | ||
373 | param = iscsi_set_default_param(pl, SESSIONTYPE, INITIAL_SESSIONTYPE, | |
374 | PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_INITIATOR, | |
375 | TYPERANGE_SESSIONTYPE, USE_LEADING_ONLY); | |
376 | if (!param) | |
377 | goto out; | |
378 | ||
379 | param = iscsi_set_default_param(pl, IFMARKER, INITIAL_IFMARKER, | |
380 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
381 | TYPERANGE_BOOL_AND, USE_INITIAL_ONLY); | |
382 | if (!param) | |
383 | goto out; | |
384 | ||
385 | param = iscsi_set_default_param(pl, OFMARKER, INITIAL_OFMARKER, | |
386 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
387 | TYPERANGE_BOOL_AND, USE_INITIAL_ONLY); | |
388 | if (!param) | |
389 | goto out; | |
390 | ||
391 | param = iscsi_set_default_param(pl, IFMARKINT, INITIAL_IFMARKINT, | |
392 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
c04a6091 | 393 | TYPERANGE_UTF8, USE_INITIAL_ONLY); |
e48354ce NB |
394 | if (!param) |
395 | goto out; | |
396 | ||
397 | param = iscsi_set_default_param(pl, OFMARKINT, INITIAL_OFMARKINT, | |
398 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
c04a6091 | 399 | TYPERANGE_UTF8, USE_INITIAL_ONLY); |
e48354ce NB |
400 | if (!param) |
401 | goto out; | |
673681ca | 402 | |
03aa2070 NB |
403 | /* |
404 | * Extra parameters for ISER from RFC-5046 | |
405 | */ | |
af40bb0b | 406 | param = iscsi_set_default_param(pl, RDMAEXTENSIONS, INITIAL_RDMAEXTENSIONS, |
03aa2070 NB |
407 | PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH, |
408 | TYPERANGE_BOOL_AND, USE_LEADING_ONLY); | |
409 | if (!param) | |
410 | goto out; | |
411 | ||
412 | param = iscsi_set_default_param(pl, INITIATORRECVDATASEGMENTLENGTH, | |
413 | INITIAL_INITIATORRECVDATASEGMENTLENGTH, | |
414 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
415 | TYPERANGE_512_TO_16777215, USE_ALL); | |
416 | if (!param) | |
417 | goto out; | |
418 | ||
419 | param = iscsi_set_default_param(pl, TARGETRECVDATASEGMENTLENGTH, | |
420 | INITIAL_TARGETRECVDATASEGMENTLENGTH, | |
421 | PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH, | |
422 | TYPERANGE_512_TO_16777215, USE_ALL); | |
423 | if (!param) | |
424 | goto out; | |
e48354ce NB |
425 | |
426 | *param_list_ptr = pl; | |
427 | return 0; | |
428 | out: | |
429 | iscsi_release_param_list(pl); | |
430 | return -1; | |
431 | } | |
432 | ||
433 | int iscsi_set_keys_to_negotiate( | |
03aa2070 NB |
434 | struct iscsi_param_list *param_list, |
435 | bool iser) | |
e48354ce NB |
436 | { |
437 | struct iscsi_param *param; | |
438 | ||
03aa2070 NB |
439 | param_list->iser = iser; |
440 | ||
e48354ce NB |
441 | list_for_each_entry(param, ¶m_list->param_list, p_list) { |
442 | param->state = 0; | |
443 | if (!strcmp(param->name, AUTHMETHOD)) { | |
444 | SET_PSTATE_NEGOTIATE(param); | |
445 | } else if (!strcmp(param->name, HEADERDIGEST)) { | |
0bcc297e | 446 | if (!iser) |
03aa2070 | 447 | SET_PSTATE_NEGOTIATE(param); |
e48354ce | 448 | } else if (!strcmp(param->name, DATADIGEST)) { |
0bcc297e | 449 | if (!iser) |
03aa2070 | 450 | SET_PSTATE_NEGOTIATE(param); |
e48354ce NB |
451 | } else if (!strcmp(param->name, MAXCONNECTIONS)) { |
452 | SET_PSTATE_NEGOTIATE(param); | |
453 | } else if (!strcmp(param->name, TARGETNAME)) { | |
454 | continue; | |
455 | } else if (!strcmp(param->name, INITIATORNAME)) { | |
456 | continue; | |
457 | } else if (!strcmp(param->name, TARGETALIAS)) { | |
458 | if (param->value) | |
459 | SET_PSTATE_NEGOTIATE(param); | |
460 | } else if (!strcmp(param->name, INITIATORALIAS)) { | |
461 | continue; | |
462 | } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) { | |
463 | SET_PSTATE_NEGOTIATE(param); | |
464 | } else if (!strcmp(param->name, INITIALR2T)) { | |
465 | SET_PSTATE_NEGOTIATE(param); | |
466 | } else if (!strcmp(param->name, IMMEDIATEDATA)) { | |
467 | SET_PSTATE_NEGOTIATE(param); | |
468 | } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) { | |
0bcc297e | 469 | if (!iser) |
03aa2070 | 470 | SET_PSTATE_NEGOTIATE(param); |
e004cb25 NB |
471 | } else if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) { |
472 | continue; | |
e48354ce NB |
473 | } else if (!strcmp(param->name, MAXBURSTLENGTH)) { |
474 | SET_PSTATE_NEGOTIATE(param); | |
475 | } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) { | |
476 | SET_PSTATE_NEGOTIATE(param); | |
477 | } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) { | |
478 | SET_PSTATE_NEGOTIATE(param); | |
479 | } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) { | |
480 | SET_PSTATE_NEGOTIATE(param); | |
481 | } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) { | |
482 | SET_PSTATE_NEGOTIATE(param); | |
483 | } else if (!strcmp(param->name, DATAPDUINORDER)) { | |
484 | SET_PSTATE_NEGOTIATE(param); | |
485 | } else if (!strcmp(param->name, DATASEQUENCEINORDER)) { | |
486 | SET_PSTATE_NEGOTIATE(param); | |
487 | } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) { | |
488 | SET_PSTATE_NEGOTIATE(param); | |
489 | } else if (!strcmp(param->name, SESSIONTYPE)) { | |
490 | SET_PSTATE_NEGOTIATE(param); | |
491 | } else if (!strcmp(param->name, IFMARKER)) { | |
673681ca | 492 | SET_PSTATE_REJECT(param); |
e48354ce | 493 | } else if (!strcmp(param->name, OFMARKER)) { |
673681ca | 494 | SET_PSTATE_REJECT(param); |
e48354ce | 495 | } else if (!strcmp(param->name, IFMARKINT)) { |
c04a6091 | 496 | SET_PSTATE_REJECT(param); |
e48354ce | 497 | } else if (!strcmp(param->name, OFMARKINT)) { |
c04a6091 | 498 | SET_PSTATE_REJECT(param); |
af40bb0b | 499 | } else if (!strcmp(param->name, RDMAEXTENSIONS)) { |
0bcc297e | 500 | if (iser) |
03aa2070 NB |
501 | SET_PSTATE_NEGOTIATE(param); |
502 | } else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) { | |
0bcc297e | 503 | if (iser) |
03aa2070 NB |
504 | SET_PSTATE_NEGOTIATE(param); |
505 | } else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) { | |
0bcc297e | 506 | if (iser) |
03aa2070 | 507 | SET_PSTATE_NEGOTIATE(param); |
e48354ce NB |
508 | } |
509 | } | |
510 | ||
511 | return 0; | |
512 | } | |
513 | ||
514 | int iscsi_set_keys_irrelevant_for_discovery( | |
515 | struct iscsi_param_list *param_list) | |
516 | { | |
517 | struct iscsi_param *param; | |
518 | ||
519 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
520 | if (!strcmp(param->name, MAXCONNECTIONS)) | |
521 | param->state &= ~PSTATE_NEGOTIATE; | |
522 | else if (!strcmp(param->name, INITIALR2T)) | |
523 | param->state &= ~PSTATE_NEGOTIATE; | |
524 | else if (!strcmp(param->name, IMMEDIATEDATA)) | |
525 | param->state &= ~PSTATE_NEGOTIATE; | |
526 | else if (!strcmp(param->name, MAXBURSTLENGTH)) | |
527 | param->state &= ~PSTATE_NEGOTIATE; | |
528 | else if (!strcmp(param->name, FIRSTBURSTLENGTH)) | |
529 | param->state &= ~PSTATE_NEGOTIATE; | |
530 | else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) | |
531 | param->state &= ~PSTATE_NEGOTIATE; | |
532 | else if (!strcmp(param->name, DATAPDUINORDER)) | |
533 | param->state &= ~PSTATE_NEGOTIATE; | |
534 | else if (!strcmp(param->name, DATASEQUENCEINORDER)) | |
535 | param->state &= ~PSTATE_NEGOTIATE; | |
536 | else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) | |
537 | param->state &= ~PSTATE_NEGOTIATE; | |
538 | else if (!strcmp(param->name, DEFAULTTIME2WAIT)) | |
539 | param->state &= ~PSTATE_NEGOTIATE; | |
540 | else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) | |
541 | param->state &= ~PSTATE_NEGOTIATE; | |
542 | else if (!strcmp(param->name, IFMARKER)) | |
543 | param->state &= ~PSTATE_NEGOTIATE; | |
544 | else if (!strcmp(param->name, OFMARKER)) | |
545 | param->state &= ~PSTATE_NEGOTIATE; | |
546 | else if (!strcmp(param->name, IFMARKINT)) | |
547 | param->state &= ~PSTATE_NEGOTIATE; | |
548 | else if (!strcmp(param->name, OFMARKINT)) | |
549 | param->state &= ~PSTATE_NEGOTIATE; | |
af40bb0b | 550 | else if (!strcmp(param->name, RDMAEXTENSIONS)) |
03aa2070 NB |
551 | param->state &= ~PSTATE_NEGOTIATE; |
552 | else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) | |
553 | param->state &= ~PSTATE_NEGOTIATE; | |
554 | else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) | |
555 | param->state &= ~PSTATE_NEGOTIATE; | |
e48354ce NB |
556 | } |
557 | ||
558 | return 0; | |
559 | } | |
560 | ||
561 | int iscsi_copy_param_list( | |
562 | struct iscsi_param_list **dst_param_list, | |
563 | struct iscsi_param_list *src_param_list, | |
564 | int leading) | |
565 | { | |
9be08c58 JJ |
566 | struct iscsi_param *param = NULL; |
567 | struct iscsi_param *new_param = NULL; | |
e48354ce NB |
568 | struct iscsi_param_list *param_list = NULL; |
569 | ||
570 | param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL); | |
571 | if (!param_list) { | |
9be08c58 | 572 | pr_err("Unable to allocate memory for struct iscsi_param_list.\n"); |
82a819e8 | 573 | return -ENOMEM; |
e48354ce NB |
574 | } |
575 | INIT_LIST_HEAD(¶m_list->param_list); | |
576 | INIT_LIST_HEAD(¶m_list->extra_response_list); | |
577 | ||
578 | list_for_each_entry(param, &src_param_list->param_list, p_list) { | |
579 | if (!leading && (param->scope & SCOPE_SESSION_WIDE)) { | |
580 | if ((strcmp(param->name, "TargetName") != 0) && | |
581 | (strcmp(param->name, "InitiatorName") != 0) && | |
582 | (strcmp(param->name, "TargetPortalGroupTag") != 0)) | |
583 | continue; | |
584 | } | |
585 | ||
586 | new_param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL); | |
587 | if (!new_param) { | |
9be08c58 JJ |
588 | pr_err("Unable to allocate memory for struct iscsi_param.\n"); |
589 | goto err_out; | |
590 | } | |
591 | ||
592 | new_param->name = kstrdup(param->name, GFP_KERNEL); | |
593 | new_param->value = kstrdup(param->value, GFP_KERNEL); | |
594 | if (!new_param->value || !new_param->name) { | |
595 | kfree(new_param->value); | |
596 | kfree(new_param->name); | |
597 | kfree(new_param); | |
598 | pr_err("Unable to allocate memory for parameter name/value.\n"); | |
e48354ce NB |
599 | goto err_out; |
600 | } | |
601 | ||
602 | new_param->set_param = param->set_param; | |
603 | new_param->phase = param->phase; | |
604 | new_param->scope = param->scope; | |
605 | new_param->sender = param->sender; | |
606 | new_param->type = param->type; | |
607 | new_param->use = param->use; | |
608 | new_param->type_range = param->type_range; | |
609 | ||
e48354ce NB |
610 | list_add_tail(&new_param->p_list, ¶m_list->param_list); |
611 | } | |
612 | ||
9be08c58 | 613 | if (!list_empty(¶m_list->param_list)) { |
e48354ce | 614 | *dst_param_list = param_list; |
9be08c58 | 615 | } else { |
e48354ce NB |
616 | pr_err("No parameters allocated.\n"); |
617 | goto err_out; | |
618 | } | |
619 | ||
620 | return 0; | |
621 | ||
622 | err_out: | |
623 | iscsi_release_param_list(param_list); | |
82a819e8 | 624 | return -ENOMEM; |
e48354ce NB |
625 | } |
626 | ||
627 | static void iscsi_release_extra_responses(struct iscsi_param_list *param_list) | |
628 | { | |
629 | struct iscsi_extra_response *er, *er_tmp; | |
630 | ||
631 | list_for_each_entry_safe(er, er_tmp, ¶m_list->extra_response_list, | |
632 | er_list) { | |
633 | list_del(&er->er_list); | |
634 | kfree(er); | |
635 | } | |
636 | } | |
637 | ||
638 | void iscsi_release_param_list(struct iscsi_param_list *param_list) | |
639 | { | |
640 | struct iscsi_param *param, *param_tmp; | |
641 | ||
642 | list_for_each_entry_safe(param, param_tmp, ¶m_list->param_list, | |
643 | p_list) { | |
644 | list_del(¶m->p_list); | |
645 | ||
646 | kfree(param->name); | |
e48354ce | 647 | kfree(param->value); |
e48354ce | 648 | kfree(param); |
e48354ce NB |
649 | } |
650 | ||
651 | iscsi_release_extra_responses(param_list); | |
652 | ||
653 | kfree(param_list); | |
654 | } | |
655 | ||
656 | struct iscsi_param *iscsi_find_param_from_key( | |
657 | char *key, | |
658 | struct iscsi_param_list *param_list) | |
659 | { | |
660 | struct iscsi_param *param; | |
661 | ||
662 | if (!key || !param_list) { | |
663 | pr_err("Key or parameter list pointer is NULL.\n"); | |
664 | return NULL; | |
665 | } | |
666 | ||
667 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
668 | if (!strcmp(key, param->name)) | |
669 | return param; | |
670 | } | |
671 | ||
672 | pr_err("Unable to locate key \"%s\".\n", key); | |
673 | return NULL; | |
674 | } | |
d2faaefb | 675 | EXPORT_SYMBOL(iscsi_find_param_from_key); |
e48354ce NB |
676 | |
677 | int iscsi_extract_key_value(char *textbuf, char **key, char **value) | |
678 | { | |
679 | *value = strchr(textbuf, '='); | |
680 | if (!*value) { | |
59e13d48 | 681 | pr_err("Unable to locate \"=\" separator for key," |
e48354ce NB |
682 | " ignoring request.\n"); |
683 | return -1; | |
684 | } | |
685 | ||
686 | *key = textbuf; | |
687 | **value = '\0'; | |
688 | *value = *value + 1; | |
689 | ||
690 | return 0; | |
691 | } | |
692 | ||
693 | int iscsi_update_param_value(struct iscsi_param *param, char *value) | |
694 | { | |
695 | kfree(param->value); | |
696 | ||
ed72a4d5 | 697 | param->value = kstrdup(value, GFP_KERNEL); |
e48354ce NB |
698 | if (!param->value) { |
699 | pr_err("Unable to allocate memory for value.\n"); | |
617a0c2e | 700 | return -ENOMEM; |
e48354ce NB |
701 | } |
702 | ||
e48354ce NB |
703 | pr_debug("iSCSI Parameter updated to %s=%s\n", |
704 | param->name, param->value); | |
705 | return 0; | |
706 | } | |
707 | ||
708 | static int iscsi_add_notunderstood_response( | |
709 | char *key, | |
710 | char *value, | |
711 | struct iscsi_param_list *param_list) | |
712 | { | |
713 | struct iscsi_extra_response *extra_response; | |
714 | ||
715 | if (strlen(value) > VALUE_MAXLEN) { | |
716 | pr_err("Value for notunderstood key \"%s\" exceeds %d," | |
717 | " protocol error.\n", key, VALUE_MAXLEN); | |
718 | return -1; | |
719 | } | |
720 | ||
721 | extra_response = kzalloc(sizeof(struct iscsi_extra_response), GFP_KERNEL); | |
722 | if (!extra_response) { | |
723 | pr_err("Unable to allocate memory for" | |
724 | " struct iscsi_extra_response.\n"); | |
82a819e8 | 725 | return -ENOMEM; |
e48354ce NB |
726 | } |
727 | INIT_LIST_HEAD(&extra_response->er_list); | |
728 | ||
cea4dcfd KC |
729 | strlcpy(extra_response->key, key, sizeof(extra_response->key)); |
730 | strlcpy(extra_response->value, NOTUNDERSTOOD, | |
731 | sizeof(extra_response->value)); | |
e48354ce NB |
732 | |
733 | list_add_tail(&extra_response->er_list, | |
734 | ¶m_list->extra_response_list); | |
735 | return 0; | |
736 | } | |
737 | ||
738 | static int iscsi_check_for_auth_key(char *key) | |
739 | { | |
740 | /* | |
741 | * RFC 1994 | |
742 | */ | |
743 | if (!strcmp(key, "CHAP_A") || !strcmp(key, "CHAP_I") || | |
744 | !strcmp(key, "CHAP_C") || !strcmp(key, "CHAP_N") || | |
745 | !strcmp(key, "CHAP_R")) | |
746 | return 1; | |
747 | ||
748 | /* | |
749 | * RFC 2945 | |
750 | */ | |
751 | if (!strcmp(key, "SRP_U") || !strcmp(key, "SRP_N") || | |
752 | !strcmp(key, "SRP_g") || !strcmp(key, "SRP_s") || | |
753 | !strcmp(key, "SRP_A") || !strcmp(key, "SRP_B") || | |
754 | !strcmp(key, "SRP_M") || !strcmp(key, "SRP_HM")) | |
755 | return 1; | |
756 | ||
757 | return 0; | |
758 | } | |
759 | ||
138d351e NB |
760 | static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param, |
761 | bool keys_workaround) | |
e48354ce NB |
762 | { |
763 | if (IS_TYPE_BOOL_AND(param)) { | |
764 | if (!strcmp(param->value, NO)) | |
765 | SET_PSTATE_REPLY_OPTIONAL(param); | |
766 | } else if (IS_TYPE_BOOL_OR(param)) { | |
767 | if (!strcmp(param->value, YES)) | |
768 | SET_PSTATE_REPLY_OPTIONAL(param); | |
138d351e NB |
769 | |
770 | if (keys_workaround) { | |
771 | /* | |
772 | * Required for gPXE iSCSI boot client | |
773 | */ | |
774 | if (!strcmp(param->name, IMMEDIATEDATA)) | |
775 | SET_PSTATE_REPLY_OPTIONAL(param); | |
776 | } | |
e48354ce NB |
777 | } else if (IS_TYPE_NUMBER(param)) { |
778 | if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) | |
779 | SET_PSTATE_REPLY_OPTIONAL(param); | |
138d351e NB |
780 | |
781 | if (keys_workaround) { | |
782 | /* | |
783 | * Required for Mellanox Flexboot PXE boot ROM | |
784 | */ | |
785 | if (!strcmp(param->name, FIRSTBURSTLENGTH)) | |
786 | SET_PSTATE_REPLY_OPTIONAL(param); | |
787 | ||
788 | /* | |
789 | * Required for gPXE iSCSI boot client | |
790 | */ | |
791 | if (!strcmp(param->name, MAXCONNECTIONS)) | |
792 | SET_PSTATE_REPLY_OPTIONAL(param); | |
793 | } | |
e48354ce NB |
794 | } else if (IS_PHASE_DECLARATIVE(param)) |
795 | SET_PSTATE_REPLY_OPTIONAL(param); | |
796 | } | |
797 | ||
798 | static int iscsi_check_boolean_value(struct iscsi_param *param, char *value) | |
799 | { | |
800 | if (strcmp(value, YES) && strcmp(value, NO)) { | |
801 | pr_err("Illegal value for \"%s\", must be either" | |
802 | " \"%s\" or \"%s\".\n", param->name, YES, NO); | |
803 | return -1; | |
804 | } | |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
809 | static int iscsi_check_numerical_value(struct iscsi_param *param, char *value_ptr) | |
810 | { | |
811 | char *tmpptr; | |
812 | int value = 0; | |
813 | ||
814 | value = simple_strtoul(value_ptr, &tmpptr, 0); | |
815 | ||
e48354ce NB |
816 | if (IS_TYPERANGE_0_TO_2(param)) { |
817 | if ((value < 0) || (value > 2)) { | |
818 | pr_err("Illegal value for \"%s\", must be" | |
819 | " between 0 and 2.\n", param->name); | |
820 | return -1; | |
821 | } | |
822 | return 0; | |
823 | } | |
824 | if (IS_TYPERANGE_0_TO_3600(param)) { | |
825 | if ((value < 0) || (value > 3600)) { | |
826 | pr_err("Illegal value for \"%s\", must be" | |
827 | " between 0 and 3600.\n", param->name); | |
828 | return -1; | |
829 | } | |
830 | return 0; | |
831 | } | |
832 | if (IS_TYPERANGE_0_TO_32767(param)) { | |
833 | if ((value < 0) || (value > 32767)) { | |
834 | pr_err("Illegal value for \"%s\", must be" | |
835 | " between 0 and 32767.\n", param->name); | |
836 | return -1; | |
837 | } | |
838 | return 0; | |
839 | } | |
840 | if (IS_TYPERANGE_0_TO_65535(param)) { | |
841 | if ((value < 0) || (value > 65535)) { | |
842 | pr_err("Illegal value for \"%s\", must be" | |
843 | " between 0 and 65535.\n", param->name); | |
844 | return -1; | |
845 | } | |
846 | return 0; | |
847 | } | |
848 | if (IS_TYPERANGE_1_TO_65535(param)) { | |
849 | if ((value < 1) || (value > 65535)) { | |
850 | pr_err("Illegal value for \"%s\", must be" | |
851 | " between 1 and 65535.\n", param->name); | |
852 | return -1; | |
853 | } | |
854 | return 0; | |
855 | } | |
856 | if (IS_TYPERANGE_2_TO_3600(param)) { | |
857 | if ((value < 2) || (value > 3600)) { | |
858 | pr_err("Illegal value for \"%s\", must be" | |
859 | " between 2 and 3600.\n", param->name); | |
860 | return -1; | |
861 | } | |
862 | return 0; | |
863 | } | |
864 | if (IS_TYPERANGE_512_TO_16777215(param)) { | |
865 | if ((value < 512) || (value > 16777215)) { | |
866 | pr_err("Illegal value for \"%s\", must be" | |
867 | " between 512 and 16777215.\n", param->name); | |
868 | return -1; | |
869 | } | |
870 | return 0; | |
871 | } | |
872 | ||
873 | return 0; | |
874 | } | |
875 | ||
e48354ce NB |
876 | static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value) |
877 | { | |
878 | if (IS_PSTATE_PROPOSER(param)) | |
879 | return 0; | |
880 | ||
881 | if (IS_TYPERANGE_AUTH_PARAM(param)) { | |
882 | if (strcmp(value, KRB5) && strcmp(value, SPKM1) && | |
883 | strcmp(value, SPKM2) && strcmp(value, SRP) && | |
884 | strcmp(value, CHAP) && strcmp(value, NONE)) { | |
885 | pr_err("Illegal value for \"%s\", must be" | |
886 | " \"%s\", \"%s\", \"%s\", \"%s\", \"%s\"" | |
887 | " or \"%s\".\n", param->name, KRB5, | |
888 | SPKM1, SPKM2, SRP, CHAP, NONE); | |
889 | return -1; | |
890 | } | |
891 | } | |
892 | if (IS_TYPERANGE_DIGEST_PARAM(param)) { | |
893 | if (strcmp(value, CRC32C) && strcmp(value, NONE)) { | |
894 | pr_err("Illegal value for \"%s\", must be" | |
895 | " \"%s\" or \"%s\".\n", param->name, | |
896 | CRC32C, NONE); | |
897 | return -1; | |
898 | } | |
899 | } | |
900 | if (IS_TYPERANGE_SESSIONTYPE(param)) { | |
901 | if (strcmp(value, DISCOVERY) && strcmp(value, NORMAL)) { | |
902 | pr_err("Illegal value for \"%s\", must be" | |
903 | " \"%s\" or \"%s\".\n", param->name, | |
904 | DISCOVERY, NORMAL); | |
905 | return -1; | |
906 | } | |
907 | } | |
908 | ||
909 | return 0; | |
910 | } | |
911 | ||
e48354ce NB |
912 | static char *iscsi_check_valuelist_for_support( |
913 | struct iscsi_param *param, | |
914 | char *value) | |
915 | { | |
916 | char *tmp1 = NULL, *tmp2 = NULL; | |
917 | char *acceptor_values = NULL, *proposer_values = NULL; | |
918 | ||
919 | acceptor_values = param->value; | |
920 | proposer_values = value; | |
921 | ||
922 | do { | |
923 | if (!proposer_values) | |
924 | return NULL; | |
925 | tmp1 = strchr(proposer_values, ','); | |
926 | if (tmp1) | |
927 | *tmp1 = '\0'; | |
928 | acceptor_values = param->value; | |
929 | do { | |
930 | if (!acceptor_values) { | |
931 | if (tmp1) | |
932 | *tmp1 = ','; | |
933 | return NULL; | |
934 | } | |
935 | tmp2 = strchr(acceptor_values, ','); | |
936 | if (tmp2) | |
937 | *tmp2 = '\0'; | |
e48354ce NB |
938 | if (!strcmp(acceptor_values, proposer_values)) { |
939 | if (tmp2) | |
940 | *tmp2 = ','; | |
941 | goto out; | |
942 | } | |
943 | if (tmp2) | |
944 | *tmp2++ = ','; | |
945 | ||
946 | acceptor_values = tmp2; | |
e48354ce NB |
947 | } while (acceptor_values); |
948 | if (tmp1) | |
949 | *tmp1++ = ','; | |
950 | proposer_values = tmp1; | |
951 | } while (proposer_values); | |
952 | ||
953 | out: | |
954 | return proposer_values; | |
955 | } | |
956 | ||
9977bb18 | 957 | static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value, |
be36d683 | 958 | struct iscsit_conn *conn) |
e48354ce NB |
959 | { |
960 | u8 acceptor_boolean_value = 0, proposer_boolean_value = 0; | |
d2c27f0d | 961 | char *negotiated_value = NULL; |
e48354ce NB |
962 | |
963 | if (IS_PSTATE_ACCEPTOR(param)) { | |
964 | pr_err("Received key \"%s\" twice, protocol error.\n", | |
965 | param->name); | |
966 | return -1; | |
967 | } | |
968 | ||
969 | if (IS_PSTATE_REJECT(param)) | |
970 | return 0; | |
971 | ||
972 | if (IS_TYPE_BOOL_AND(param)) { | |
973 | if (!strcmp(value, YES)) | |
974 | proposer_boolean_value = 1; | |
975 | if (!strcmp(param->value, YES)) | |
976 | acceptor_boolean_value = 1; | |
977 | if (acceptor_boolean_value && proposer_boolean_value) | |
978 | do {} while (0); | |
979 | else { | |
980 | if (iscsi_update_param_value(param, NO) < 0) | |
981 | return -1; | |
982 | if (!proposer_boolean_value) | |
983 | SET_PSTATE_REPLY_OPTIONAL(param); | |
984 | } | |
985 | } else if (IS_TYPE_BOOL_OR(param)) { | |
986 | if (!strcmp(value, YES)) | |
987 | proposer_boolean_value = 1; | |
988 | if (!strcmp(param->value, YES)) | |
989 | acceptor_boolean_value = 1; | |
990 | if (acceptor_boolean_value || proposer_boolean_value) { | |
991 | if (iscsi_update_param_value(param, YES) < 0) | |
992 | return -1; | |
993 | if (proposer_boolean_value) | |
994 | SET_PSTATE_REPLY_OPTIONAL(param); | |
995 | } | |
996 | } else if (IS_TYPE_NUMBER(param)) { | |
1be2956d | 997 | char *tmpptr, buf[11]; |
e48354ce NB |
998 | u32 acceptor_value = simple_strtoul(param->value, &tmpptr, 0); |
999 | u32 proposer_value = simple_strtoul(value, &tmpptr, 0); | |
1000 | ||
1be2956d | 1001 | memset(buf, 0, sizeof(buf)); |
e48354ce NB |
1002 | |
1003 | if (!strcmp(param->name, MAXCONNECTIONS) || | |
1004 | !strcmp(param->name, MAXBURSTLENGTH) || | |
1005 | !strcmp(param->name, FIRSTBURSTLENGTH) || | |
1006 | !strcmp(param->name, MAXOUTSTANDINGR2T) || | |
1007 | !strcmp(param->name, DEFAULTTIME2RETAIN) || | |
1008 | !strcmp(param->name, ERRORRECOVERYLEVEL)) { | |
1009 | if (proposer_value > acceptor_value) { | |
1010 | sprintf(buf, "%u", acceptor_value); | |
1011 | if (iscsi_update_param_value(param, | |
1012 | &buf[0]) < 0) | |
1013 | return -1; | |
1014 | } else { | |
1015 | if (iscsi_update_param_value(param, value) < 0) | |
1016 | return -1; | |
1017 | } | |
1018 | } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) { | |
1019 | if (acceptor_value > proposer_value) { | |
1020 | sprintf(buf, "%u", acceptor_value); | |
1021 | if (iscsi_update_param_value(param, | |
1022 | &buf[0]) < 0) | |
1023 | return -1; | |
1024 | } else { | |
1025 | if (iscsi_update_param_value(param, value) < 0) | |
1026 | return -1; | |
1027 | } | |
1028 | } else { | |
1029 | if (iscsi_update_param_value(param, value) < 0) | |
1030 | return -1; | |
1031 | } | |
1032 | ||
9977bb18 NB |
1033 | if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) { |
1034 | struct iscsi_param *param_mxdsl; | |
1035 | unsigned long long tmp; | |
1036 | int rc; | |
1037 | ||
57103d7f | 1038 | rc = kstrtoull(param->value, 0, &tmp); |
9977bb18 NB |
1039 | if (rc < 0) |
1040 | return -1; | |
1041 | ||
1042 | conn->conn_ops->MaxRecvDataSegmentLength = tmp; | |
1043 | pr_debug("Saving op->MaxRecvDataSegmentLength from" | |
1044 | " original initiator received value: %u\n", | |
1045 | conn->conn_ops->MaxRecvDataSegmentLength); | |
1046 | ||
1047 | param_mxdsl = iscsi_find_param_from_key( | |
1048 | MAXXMITDATASEGMENTLENGTH, | |
1049 | conn->param_list); | |
1050 | if (!param_mxdsl) | |
1051 | return -1; | |
1052 | ||
1053 | rc = iscsi_update_param_value(param, | |
1054 | param_mxdsl->value); | |
1055 | if (rc < 0) | |
1056 | return -1; | |
1057 | ||
1058 | pr_debug("Updated %s to target MXDSL value: %s\n", | |
1059 | param->name, param->value); | |
1060 | } | |
e48354ce | 1061 | } else if (IS_TYPE_VALUE_LIST(param)) { |
d2c27f0d | 1062 | negotiated_value = iscsi_check_valuelist_for_support( |
e48354ce | 1063 | param, value); |
d2c27f0d | 1064 | if (!negotiated_value) { |
e48354ce NB |
1065 | pr_err("Proposer's value list \"%s\" contains" |
1066 | " no valid values from Acceptor's value list" | |
1067 | " \"%s\".\n", value, param->value); | |
1068 | return -1; | |
1069 | } | |
d2c27f0d | 1070 | if (iscsi_update_param_value(param, negotiated_value) < 0) |
e48354ce NB |
1071 | return -1; |
1072 | } else if (IS_PHASE_DECLARATIVE(param)) { | |
1073 | if (iscsi_update_param_value(param, value) < 0) | |
1074 | return -1; | |
1075 | SET_PSTATE_REPLY_OPTIONAL(param); | |
1076 | } | |
1077 | ||
1078 | return 0; | |
1079 | } | |
1080 | ||
1081 | static int iscsi_check_proposer_state(struct iscsi_param *param, char *value) | |
1082 | { | |
1083 | if (IS_PSTATE_RESPONSE_GOT(param)) { | |
1084 | pr_err("Received key \"%s\" twice, protocol error.\n", | |
1085 | param->name); | |
1086 | return -1; | |
1087 | } | |
1088 | ||
c04a6091 | 1089 | if (IS_TYPE_VALUE_LIST(param)) { |
e48354ce NB |
1090 | char *comma_ptr = NULL, *tmp_ptr = NULL; |
1091 | ||
1092 | comma_ptr = strchr(value, ','); | |
1093 | if (comma_ptr) { | |
1094 | pr_err("Illegal \",\" in response for \"%s\".\n", | |
1095 | param->name); | |
1096 | return -1; | |
1097 | } | |
1098 | ||
1099 | tmp_ptr = iscsi_check_valuelist_for_support(param, value); | |
1100 | if (!tmp_ptr) | |
1101 | return -1; | |
1102 | } | |
1103 | ||
1104 | if (iscsi_update_param_value(param, value) < 0) | |
1105 | return -1; | |
1106 | ||
1107 | return 0; | |
1108 | } | |
1109 | ||
1110 | static int iscsi_check_value(struct iscsi_param *param, char *value) | |
1111 | { | |
1112 | char *comma_ptr = NULL; | |
1113 | ||
1114 | if (!strcmp(value, REJECT)) { | |
1115 | if (!strcmp(param->name, IFMARKINT) || | |
1116 | !strcmp(param->name, OFMARKINT)) { | |
1117 | /* | |
1118 | * Reject is not fatal for [I,O]FMarkInt, and causes | |
1119 | * [I,O]FMarker to be reset to No. (See iSCSI v20 A.3.2) | |
1120 | */ | |
1121 | SET_PSTATE_REJECT(param); | |
1122 | return 0; | |
1123 | } | |
1124 | pr_err("Received %s=%s\n", param->name, value); | |
1125 | return -1; | |
1126 | } | |
1127 | if (!strcmp(value, IRRELEVANT)) { | |
1128 | pr_debug("Received %s=%s\n", param->name, value); | |
1129 | SET_PSTATE_IRRELEVANT(param); | |
1130 | return 0; | |
1131 | } | |
1132 | if (!strcmp(value, NOTUNDERSTOOD)) { | |
1133 | if (!IS_PSTATE_PROPOSER(param)) { | |
1134 | pr_err("Received illegal offer %s=%s\n", | |
1135 | param->name, value); | |
1136 | return -1; | |
1137 | } | |
1138 | ||
1139 | /* #warning FIXME: Add check for X-ExtensionKey here */ | |
1140 | pr_err("Standard iSCSI key \"%s\" cannot be answered" | |
1141 | " with \"%s\", protocol error.\n", param->name, value); | |
1142 | return -1; | |
1143 | } | |
1144 | ||
1145 | do { | |
1146 | comma_ptr = NULL; | |
1147 | comma_ptr = strchr(value, ','); | |
1148 | ||
1149 | if (comma_ptr && !IS_TYPE_VALUE_LIST(param)) { | |
59e13d48 | 1150 | pr_err("Detected value separator \",\", but" |
e48354ce NB |
1151 | " key \"%s\" does not allow a value list," |
1152 | " protocol error.\n", param->name); | |
1153 | return -1; | |
1154 | } | |
1155 | if (comma_ptr) | |
1156 | *comma_ptr = '\0'; | |
1157 | ||
1158 | if (strlen(value) > VALUE_MAXLEN) { | |
1159 | pr_err("Value for key \"%s\" exceeds %d," | |
1160 | " protocol error.\n", param->name, | |
1161 | VALUE_MAXLEN); | |
1162 | return -1; | |
1163 | } | |
1164 | ||
1165 | if (IS_TYPE_BOOL_AND(param) || IS_TYPE_BOOL_OR(param)) { | |
1166 | if (iscsi_check_boolean_value(param, value) < 0) | |
1167 | return -1; | |
1168 | } else if (IS_TYPE_NUMBER(param)) { | |
1169 | if (iscsi_check_numerical_value(param, value) < 0) | |
1170 | return -1; | |
e48354ce NB |
1171 | } else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) { |
1172 | if (iscsi_check_string_or_list_value(param, value) < 0) | |
1173 | return -1; | |
1174 | } else { | |
1175 | pr_err("Huh? 0x%02x\n", param->type); | |
1176 | return -1; | |
1177 | } | |
1178 | ||
1179 | if (comma_ptr) | |
1180 | *comma_ptr++ = ','; | |
1181 | ||
1182 | value = comma_ptr; | |
1183 | } while (value); | |
1184 | ||
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | static struct iscsi_param *__iscsi_check_key( | |
1189 | char *key, | |
1190 | int sender, | |
1191 | struct iscsi_param_list *param_list) | |
1192 | { | |
1193 | struct iscsi_param *param; | |
1194 | ||
1195 | if (strlen(key) > KEY_MAXLEN) { | |
1196 | pr_err("Length of key name \"%s\" exceeds %d.\n", | |
1197 | key, KEY_MAXLEN); | |
1198 | return NULL; | |
1199 | } | |
1200 | ||
1201 | param = iscsi_find_param_from_key(key, param_list); | |
1202 | if (!param) | |
1203 | return NULL; | |
1204 | ||
1205 | if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) { | |
1206 | pr_err("Key \"%s\" may not be sent to %s," | |
1207 | " protocol error.\n", param->name, | |
1208 | (sender & SENDER_RECEIVER) ? "target" : "initiator"); | |
1209 | return NULL; | |
1210 | } | |
1211 | ||
1212 | if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) { | |
1213 | pr_err("Key \"%s\" may not be sent to %s," | |
1214 | " protocol error.\n", param->name, | |
1215 | (sender & SENDER_RECEIVER) ? "initiator" : "target"); | |
1216 | return NULL; | |
1217 | } | |
1218 | ||
1219 | return param; | |
1220 | } | |
1221 | ||
1222 | static struct iscsi_param *iscsi_check_key( | |
1223 | char *key, | |
1224 | int phase, | |
1225 | int sender, | |
1226 | struct iscsi_param_list *param_list) | |
1227 | { | |
1228 | struct iscsi_param *param; | |
1229 | /* | |
1230 | * Key name length must not exceed 63 bytes. (See iSCSI v20 5.1) | |
1231 | */ | |
1232 | if (strlen(key) > KEY_MAXLEN) { | |
1233 | pr_err("Length of key name \"%s\" exceeds %d.\n", | |
1234 | key, KEY_MAXLEN); | |
1235 | return NULL; | |
1236 | } | |
1237 | ||
1238 | param = iscsi_find_param_from_key(key, param_list); | |
1239 | if (!param) | |
1240 | return NULL; | |
1241 | ||
1242 | if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) { | |
1243 | pr_err("Key \"%s\" may not be sent to %s," | |
1244 | " protocol error.\n", param->name, | |
1245 | (sender & SENDER_RECEIVER) ? "target" : "initiator"); | |
1246 | return NULL; | |
1247 | } | |
1248 | if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) { | |
1249 | pr_err("Key \"%s\" may not be sent to %s," | |
1250 | " protocol error.\n", param->name, | |
1251 | (sender & SENDER_RECEIVER) ? "initiator" : "target"); | |
1252 | return NULL; | |
1253 | } | |
1254 | ||
1255 | if (IS_PSTATE_ACCEPTOR(param)) { | |
1256 | pr_err("Key \"%s\" received twice, protocol error.\n", | |
1257 | key); | |
1258 | return NULL; | |
1259 | } | |
1260 | ||
1261 | if (!phase) | |
1262 | return param; | |
1263 | ||
1264 | if (!(param->phase & phase)) { | |
6cc55c96 ML |
1265 | char *phase_name; |
1266 | ||
e48354ce NB |
1267 | switch (phase) { |
1268 | case PHASE_SECURITY: | |
6cc55c96 | 1269 | phase_name = "Security"; |
e48354ce NB |
1270 | break; |
1271 | case PHASE_OPERATIONAL: | |
6cc55c96 | 1272 | phase_name = "Operational"; |
db831018 | 1273 | break; |
e48354ce | 1274 | default: |
6cc55c96 | 1275 | phase_name = "Unknown"; |
e48354ce | 1276 | } |
6cc55c96 ML |
1277 | pr_err("Key \"%s\" may not be negotiated during %s phase.\n", |
1278 | param->name, phase_name); | |
e48354ce NB |
1279 | return NULL; |
1280 | } | |
1281 | ||
1282 | return param; | |
1283 | } | |
1284 | ||
1285 | static int iscsi_enforce_integrity_rules( | |
1286 | u8 phase, | |
1287 | struct iscsi_param_list *param_list) | |
1288 | { | |
1289 | char *tmpptr; | |
1290 | u8 DataSequenceInOrder = 0; | |
1291 | u8 ErrorRecoveryLevel = 0, SessionType = 0; | |
e48354ce NB |
1292 | u32 FirstBurstLength = 0, MaxBurstLength = 0; |
1293 | struct iscsi_param *param = NULL; | |
1294 | ||
1295 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
1296 | if (!(param->phase & phase)) | |
1297 | continue; | |
1298 | if (!strcmp(param->name, SESSIONTYPE)) | |
1299 | if (!strcmp(param->value, NORMAL)) | |
1300 | SessionType = 1; | |
1301 | if (!strcmp(param->name, ERRORRECOVERYLEVEL)) | |
1302 | ErrorRecoveryLevel = simple_strtoul(param->value, | |
1303 | &tmpptr, 0); | |
1304 | if (!strcmp(param->name, DATASEQUENCEINORDER)) | |
1305 | if (!strcmp(param->value, YES)) | |
1306 | DataSequenceInOrder = 1; | |
1307 | if (!strcmp(param->name, MAXBURSTLENGTH)) | |
1308 | MaxBurstLength = simple_strtoul(param->value, | |
1309 | &tmpptr, 0); | |
e48354ce NB |
1310 | } |
1311 | ||
1312 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
1313 | if (!(param->phase & phase)) | |
1314 | continue; | |
c04a6091 | 1315 | if (!SessionType && !IS_PSTATE_ACCEPTOR(param)) |
e48354ce NB |
1316 | continue; |
1317 | if (!strcmp(param->name, MAXOUTSTANDINGR2T) && | |
1318 | DataSequenceInOrder && (ErrorRecoveryLevel > 0)) { | |
1319 | if (strcmp(param->value, "1")) { | |
1320 | if (iscsi_update_param_value(param, "1") < 0) | |
1321 | return -1; | |
1322 | pr_debug("Reset \"%s\" to \"%s\".\n", | |
1323 | param->name, param->value); | |
1324 | } | |
1325 | } | |
1326 | if (!strcmp(param->name, MAXCONNECTIONS) && !SessionType) { | |
1327 | if (strcmp(param->value, "1")) { | |
1328 | if (iscsi_update_param_value(param, "1") < 0) | |
1329 | return -1; | |
1330 | pr_debug("Reset \"%s\" to \"%s\".\n", | |
1331 | param->name, param->value); | |
1332 | } | |
1333 | } | |
1334 | if (!strcmp(param->name, FIRSTBURSTLENGTH)) { | |
1335 | FirstBurstLength = simple_strtoul(param->value, | |
1336 | &tmpptr, 0); | |
1337 | if (FirstBurstLength > MaxBurstLength) { | |
1be2956d DC |
1338 | char tmpbuf[11]; |
1339 | memset(tmpbuf, 0, sizeof(tmpbuf)); | |
e48354ce NB |
1340 | sprintf(tmpbuf, "%u", MaxBurstLength); |
1341 | if (iscsi_update_param_value(param, tmpbuf)) | |
1342 | return -1; | |
1343 | pr_debug("Reset \"%s\" to \"%s\".\n", | |
1344 | param->name, param->value); | |
1345 | } | |
1346 | } | |
e48354ce NB |
1347 | } |
1348 | ||
1349 | return 0; | |
1350 | } | |
1351 | ||
1352 | int iscsi_decode_text_input( | |
1353 | u8 phase, | |
1354 | u8 sender, | |
1355 | char *textbuf, | |
1356 | u32 length, | |
be36d683 | 1357 | struct iscsit_conn *conn) |
e48354ce | 1358 | { |
9977bb18 | 1359 | struct iscsi_param_list *param_list = conn->param_list; |
e48354ce NB |
1360 | char *tmpbuf, *start = NULL, *end = NULL; |
1361 | ||
6235bef6 | 1362 | tmpbuf = kmemdup_nul(textbuf, length, GFP_KERNEL); |
e48354ce | 1363 | if (!tmpbuf) { |
cee6029e | 1364 | pr_err("Unable to allocate %u + 1 bytes for tmpbuf.\n", length); |
82a819e8 | 1365 | return -ENOMEM; |
e48354ce NB |
1366 | } |
1367 | ||
e48354ce NB |
1368 | start = tmpbuf; |
1369 | end = (start + length); | |
1370 | ||
1371 | while (start < end) { | |
1372 | char *key, *value; | |
1373 | struct iscsi_param *param; | |
1374 | ||
17c45b90 ME |
1375 | if (iscsi_extract_key_value(start, &key, &value) < 0) |
1376 | goto free_buffer; | |
e48354ce NB |
1377 | |
1378 | pr_debug("Got key: %s=%s\n", key, value); | |
1379 | ||
1380 | if (phase & PHASE_SECURITY) { | |
1381 | if (iscsi_check_for_auth_key(key) > 0) { | |
e48354ce NB |
1382 | kfree(tmpbuf); |
1383 | return 1; | |
1384 | } | |
1385 | } | |
1386 | ||
1387 | param = iscsi_check_key(key, phase, sender, param_list); | |
1388 | if (!param) { | |
17c45b90 ME |
1389 | if (iscsi_add_notunderstood_response(key, value, |
1390 | param_list) < 0) | |
1391 | goto free_buffer; | |
1392 | ||
e48354ce NB |
1393 | start += strlen(key) + strlen(value) + 2; |
1394 | continue; | |
1395 | } | |
17c45b90 ME |
1396 | if (iscsi_check_value(param, value) < 0) |
1397 | goto free_buffer; | |
e48354ce NB |
1398 | |
1399 | start += strlen(key) + strlen(value) + 2; | |
1400 | ||
1401 | if (IS_PSTATE_PROPOSER(param)) { | |
17c45b90 ME |
1402 | if (iscsi_check_proposer_state(param, value) < 0) |
1403 | goto free_buffer; | |
1404 | ||
e48354ce NB |
1405 | SET_PSTATE_RESPONSE_GOT(param); |
1406 | } else { | |
17c45b90 ME |
1407 | if (iscsi_check_acceptor_state(param, value, conn) < 0) |
1408 | goto free_buffer; | |
1409 | ||
e48354ce NB |
1410 | SET_PSTATE_ACCEPTOR(param); |
1411 | } | |
1412 | } | |
1413 | ||
1414 | kfree(tmpbuf); | |
1415 | return 0; | |
17c45b90 ME |
1416 | |
1417 | free_buffer: | |
1418 | kfree(tmpbuf); | |
1419 | return -1; | |
e48354ce NB |
1420 | } |
1421 | ||
1422 | int iscsi_encode_text_output( | |
1423 | u8 phase, | |
1424 | u8 sender, | |
1425 | char *textbuf, | |
1426 | u32 *length, | |
138d351e NB |
1427 | struct iscsi_param_list *param_list, |
1428 | bool keys_workaround) | |
e48354ce NB |
1429 | { |
1430 | char *output_buf = NULL; | |
1431 | struct iscsi_extra_response *er; | |
1432 | struct iscsi_param *param; | |
1433 | ||
1434 | output_buf = textbuf + *length; | |
1435 | ||
1436 | if (iscsi_enforce_integrity_rules(phase, param_list) < 0) | |
1437 | return -1; | |
1438 | ||
1439 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
1440 | if (!(param->sender & sender)) | |
1441 | continue; | |
1442 | if (IS_PSTATE_ACCEPTOR(param) && | |
1443 | !IS_PSTATE_RESPONSE_SENT(param) && | |
1444 | !IS_PSTATE_REPLY_OPTIONAL(param) && | |
1445 | (param->phase & phase)) { | |
1446 | *length += sprintf(output_buf, "%s=%s", | |
1447 | param->name, param->value); | |
1448 | *length += 1; | |
1449 | output_buf = textbuf + *length; | |
1450 | SET_PSTATE_RESPONSE_SENT(param); | |
1451 | pr_debug("Sending key: %s=%s\n", | |
1452 | param->name, param->value); | |
1453 | continue; | |
1454 | } | |
1455 | if (IS_PSTATE_NEGOTIATE(param) && | |
1456 | !IS_PSTATE_ACCEPTOR(param) && | |
1457 | !IS_PSTATE_PROPOSER(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_PROPOSER(param); | |
138d351e NB |
1464 | iscsi_check_proposer_for_optional_reply(param, |
1465 | keys_workaround); | |
e48354ce NB |
1466 | pr_debug("Sending key: %s=%s\n", |
1467 | param->name, param->value); | |
1468 | } | |
1469 | } | |
1470 | ||
1471 | list_for_each_entry(er, ¶m_list->extra_response_list, er_list) { | |
1472 | *length += sprintf(output_buf, "%s=%s", er->key, er->value); | |
1473 | *length += 1; | |
1474 | output_buf = textbuf + *length; | |
1475 | pr_debug("Sending key: %s=%s\n", er->key, er->value); | |
1476 | } | |
1477 | iscsi_release_extra_responses(param_list); | |
1478 | ||
1479 | return 0; | |
1480 | } | |
1481 | ||
1482 | int iscsi_check_negotiated_keys(struct iscsi_param_list *param_list) | |
1483 | { | |
1484 | int ret = 0; | |
1485 | struct iscsi_param *param; | |
1486 | ||
1487 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
1488 | if (IS_PSTATE_NEGOTIATE(param) && | |
1489 | IS_PSTATE_PROPOSER(param) && | |
1490 | !IS_PSTATE_RESPONSE_GOT(param) && | |
1491 | !IS_PSTATE_REPLY_OPTIONAL(param) && | |
1492 | !IS_PHASE_DECLARATIVE(param)) { | |
1493 | pr_err("No response for proposed key \"%s\".\n", | |
1494 | param->name); | |
1495 | ret = -1; | |
1496 | } | |
1497 | } | |
1498 | ||
1499 | return ret; | |
1500 | } | |
1501 | ||
1502 | int iscsi_change_param_value( | |
1503 | char *keyvalue, | |
1504 | struct iscsi_param_list *param_list, | |
1505 | int check_key) | |
1506 | { | |
1507 | char *key = NULL, *value = NULL; | |
1508 | struct iscsi_param *param; | |
1509 | int sender = 0; | |
1510 | ||
1511 | if (iscsi_extract_key_value(keyvalue, &key, &value) < 0) | |
1512 | return -1; | |
1513 | ||
1514 | if (!check_key) { | |
1515 | param = __iscsi_check_key(keyvalue, sender, param_list); | |
1516 | if (!param) | |
1517 | return -1; | |
1518 | } else { | |
1519 | param = iscsi_check_key(keyvalue, 0, sender, param_list); | |
1520 | if (!param) | |
1521 | return -1; | |
1522 | ||
1523 | param->set_param = 1; | |
1524 | if (iscsi_check_value(param, value) < 0) { | |
1525 | param->set_param = 0; | |
1526 | return -1; | |
1527 | } | |
1528 | param->set_param = 0; | |
1529 | } | |
1530 | ||
1531 | if (iscsi_update_param_value(param, value) < 0) | |
1532 | return -1; | |
1533 | ||
1534 | return 0; | |
1535 | } | |
1536 | ||
1537 | void iscsi_set_connection_parameters( | |
1538 | struct iscsi_conn_ops *ops, | |
1539 | struct iscsi_param_list *param_list) | |
1540 | { | |
1541 | char *tmpptr; | |
1542 | struct iscsi_param *param; | |
1543 | ||
1544 | pr_debug("---------------------------------------------------" | |
1545 | "---------------\n"); | |
1546 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
e004cb25 NB |
1547 | /* |
1548 | * Special case to set MAXXMITDATASEGMENTLENGTH from the | |
1549 | * target requested MaxRecvDataSegmentLength, even though | |
1550 | * this key is not sent over the wire. | |
1551 | */ | |
1552 | if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) { | |
1553 | ops->MaxXmitDataSegmentLength = | |
1554 | simple_strtoul(param->value, &tmpptr, 0); | |
1555 | pr_debug("MaxXmitDataSegmentLength: %s\n", | |
1556 | param->value); | |
1557 | } | |
1558 | ||
e48354ce NB |
1559 | if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param)) |
1560 | continue; | |
1561 | if (!strcmp(param->name, AUTHMETHOD)) { | |
1562 | pr_debug("AuthMethod: %s\n", | |
1563 | param->value); | |
1564 | } else if (!strcmp(param->name, HEADERDIGEST)) { | |
1565 | ops->HeaderDigest = !strcmp(param->value, CRC32C); | |
1566 | pr_debug("HeaderDigest: %s\n", | |
1567 | param->value); | |
1568 | } else if (!strcmp(param->name, DATADIGEST)) { | |
1569 | ops->DataDigest = !strcmp(param->value, CRC32C); | |
1570 | pr_debug("DataDigest: %s\n", | |
1571 | param->value); | |
1572 | } else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) { | |
9977bb18 NB |
1573 | /* |
1574 | * At this point iscsi_check_acceptor_state() will have | |
1575 | * set ops->MaxRecvDataSegmentLength from the original | |
1576 | * initiator provided value. | |
1577 | */ | |
1578 | pr_debug("MaxRecvDataSegmentLength: %u\n", | |
1579 | ops->MaxRecvDataSegmentLength); | |
03aa2070 NB |
1580 | } else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) { |
1581 | ops->InitiatorRecvDataSegmentLength = | |
1582 | simple_strtoul(param->value, &tmpptr, 0); | |
1583 | pr_debug("InitiatorRecvDataSegmentLength: %s\n", | |
1584 | param->value); | |
1585 | ops->MaxRecvDataSegmentLength = | |
1586 | ops->InitiatorRecvDataSegmentLength; | |
1587 | pr_debug("Set MRDSL from InitiatorRecvDataSegmentLength\n"); | |
1588 | } else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) { | |
1589 | ops->TargetRecvDataSegmentLength = | |
1590 | simple_strtoul(param->value, &tmpptr, 0); | |
1591 | pr_debug("TargetRecvDataSegmentLength: %s\n", | |
1592 | param->value); | |
1593 | ops->MaxXmitDataSegmentLength = | |
1594 | ops->TargetRecvDataSegmentLength; | |
1595 | pr_debug("Set MXDSL from TargetRecvDataSegmentLength\n"); | |
e48354ce NB |
1596 | } |
1597 | } | |
1598 | pr_debug("----------------------------------------------------" | |
1599 | "--------------\n"); | |
1600 | } | |
1601 | ||
1602 | void iscsi_set_session_parameters( | |
1603 | struct iscsi_sess_ops *ops, | |
1604 | struct iscsi_param_list *param_list, | |
1605 | int leading) | |
1606 | { | |
1607 | char *tmpptr; | |
1608 | struct iscsi_param *param; | |
1609 | ||
1610 | pr_debug("----------------------------------------------------" | |
1611 | "--------------\n"); | |
1612 | list_for_each_entry(param, ¶m_list->param_list, p_list) { | |
1613 | if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param)) | |
1614 | continue; | |
1615 | if (!strcmp(param->name, INITIATORNAME)) { | |
1616 | if (!param->value) | |
1617 | continue; | |
1618 | if (leading) | |
1619 | snprintf(ops->InitiatorName, | |
1620 | sizeof(ops->InitiatorName), | |
1621 | "%s", param->value); | |
1622 | pr_debug("InitiatorName: %s\n", | |
1623 | param->value); | |
1624 | } else if (!strcmp(param->name, INITIATORALIAS)) { | |
1625 | if (!param->value) | |
1626 | continue; | |
1627 | snprintf(ops->InitiatorAlias, | |
1628 | sizeof(ops->InitiatorAlias), | |
1629 | "%s", param->value); | |
1630 | pr_debug("InitiatorAlias: %s\n", | |
1631 | param->value); | |
1632 | } else if (!strcmp(param->name, TARGETNAME)) { | |
1633 | if (!param->value) | |
1634 | continue; | |
1635 | if (leading) | |
1636 | snprintf(ops->TargetName, | |
1637 | sizeof(ops->TargetName), | |
1638 | "%s", param->value); | |
1639 | pr_debug("TargetName: %s\n", | |
1640 | param->value); | |
1641 | } else if (!strcmp(param->name, TARGETALIAS)) { | |
1642 | if (!param->value) | |
1643 | continue; | |
1644 | snprintf(ops->TargetAlias, sizeof(ops->TargetAlias), | |
1645 | "%s", param->value); | |
1646 | pr_debug("TargetAlias: %s\n", | |
1647 | param->value); | |
1648 | } else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) { | |
1649 | ops->TargetPortalGroupTag = | |
1650 | simple_strtoul(param->value, &tmpptr, 0); | |
1651 | pr_debug("TargetPortalGroupTag: %s\n", | |
1652 | param->value); | |
1653 | } else if (!strcmp(param->name, MAXCONNECTIONS)) { | |
1654 | ops->MaxConnections = | |
1655 | simple_strtoul(param->value, &tmpptr, 0); | |
1656 | pr_debug("MaxConnections: %s\n", | |
1657 | param->value); | |
1658 | } else if (!strcmp(param->name, INITIALR2T)) { | |
1659 | ops->InitialR2T = !strcmp(param->value, YES); | |
5a342521 | 1660 | pr_debug("InitialR2T: %s\n", |
e48354ce NB |
1661 | param->value); |
1662 | } else if (!strcmp(param->name, IMMEDIATEDATA)) { | |
1663 | ops->ImmediateData = !strcmp(param->value, YES); | |
1664 | pr_debug("ImmediateData: %s\n", | |
1665 | param->value); | |
1666 | } else if (!strcmp(param->name, MAXBURSTLENGTH)) { | |
1667 | ops->MaxBurstLength = | |
1668 | simple_strtoul(param->value, &tmpptr, 0); | |
1669 | pr_debug("MaxBurstLength: %s\n", | |
1670 | param->value); | |
1671 | } else if (!strcmp(param->name, FIRSTBURSTLENGTH)) { | |
1672 | ops->FirstBurstLength = | |
1673 | simple_strtoul(param->value, &tmpptr, 0); | |
1674 | pr_debug("FirstBurstLength: %s\n", | |
1675 | param->value); | |
1676 | } else if (!strcmp(param->name, DEFAULTTIME2WAIT)) { | |
1677 | ops->DefaultTime2Wait = | |
1678 | simple_strtoul(param->value, &tmpptr, 0); | |
1679 | pr_debug("DefaultTime2Wait: %s\n", | |
1680 | param->value); | |
1681 | } else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) { | |
1682 | ops->DefaultTime2Retain = | |
1683 | simple_strtoul(param->value, &tmpptr, 0); | |
1684 | pr_debug("DefaultTime2Retain: %s\n", | |
1685 | param->value); | |
1686 | } else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) { | |
1687 | ops->MaxOutstandingR2T = | |
1688 | simple_strtoul(param->value, &tmpptr, 0); | |
1689 | pr_debug("MaxOutstandingR2T: %s\n", | |
1690 | param->value); | |
1691 | } else if (!strcmp(param->name, DATAPDUINORDER)) { | |
1692 | ops->DataPDUInOrder = !strcmp(param->value, YES); | |
1693 | pr_debug("DataPDUInOrder: %s\n", | |
1694 | param->value); | |
1695 | } else if (!strcmp(param->name, DATASEQUENCEINORDER)) { | |
1696 | ops->DataSequenceInOrder = !strcmp(param->value, YES); | |
1697 | pr_debug("DataSequenceInOrder: %s\n", | |
1698 | param->value); | |
1699 | } else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) { | |
1700 | ops->ErrorRecoveryLevel = | |
1701 | simple_strtoul(param->value, &tmpptr, 0); | |
1702 | pr_debug("ErrorRecoveryLevel: %s\n", | |
1703 | param->value); | |
1704 | } else if (!strcmp(param->name, SESSIONTYPE)) { | |
1705 | ops->SessionType = !strcmp(param->value, DISCOVERY); | |
1706 | pr_debug("SessionType: %s\n", | |
1707 | param->value); | |
af40bb0b | 1708 | } else if (!strcmp(param->name, RDMAEXTENSIONS)) { |
03aa2070 NB |
1709 | ops->RDMAExtensions = !strcmp(param->value, YES); |
1710 | pr_debug("RDMAExtensions: %s\n", | |
1711 | param->value); | |
e48354ce NB |
1712 | } |
1713 | } | |
1714 | pr_debug("----------------------------------------------------" | |
1715 | "--------------\n"); | |
1716 | ||
1717 | } |