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