1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <sys/zfs_context.h> 27 #include <sys/crypto/common.h> 28 #include <sys/crypto/impl.h> 29 #include <sys/crypto/api.h> 30 #include <sys/crypto/spi.h> 31 #include <sys/crypto/sched_impl.h> 32 33 /* 34 * Message authentication codes routines. 35 */ 36 37 /* 38 * The following are the possible returned values common to all the routines 39 * below. The applicability of some of these return values depends on the 40 * presence of the arguments. 41 * 42 * CRYPTO_SUCCESS: The operation completed successfully. 43 * CRYPTO_QUEUED: A request was submitted successfully. The callback 44 * routine will be called when the operation is done. 45 * CRYPTO_INVALID_MECH_NUMBER, CRYPTO_INVALID_MECH_PARAM, or 46 * CRYPTO_INVALID_MECH for problems with the 'mech'. 47 * CRYPTO_INVALID_DATA for bogus 'data' 48 * CRYPTO_HOST_MEMORY for failure to allocate memory to handle this work. 49 * CRYPTO_INVALID_CONTEXT: Not a valid context. 50 * CRYPTO_BUSY: Cannot process the request now. Schedule a 51 * crypto_bufcall(), or try later. 52 * CRYPTO_NOT_SUPPORTED and CRYPTO_MECH_NOT_SUPPORTED: No provider is 53 * capable of a function or a mechanism. 54 * CRYPTO_INVALID_KEY: bogus 'key' argument. 55 * CRYPTO_INVALID_MAC: bogus 'mac' argument. 56 */ 57 58 /* 59 * crypto_mac_prov() 60 * 61 * Arguments: 62 * mech: crypto_mechanism_t pointer. 63 * mech_type is a valid value previously returned by 64 * crypto_mech2id(); 65 * When the mech's parameter is not NULL, its definition depends 66 * on the standard definition of the mechanism. 67 * key: pointer to a crypto_key_t structure. 68 * data: The message to compute the MAC for. 69 * mac: Storage for the MAC. The length needed depends on the mechanism. 70 * tmpl: a crypto_ctx_template_t, opaque template of a context of a 71 * MAC with the 'mech' using 'key'. 'tmpl' is created by 72 * a previous call to crypto_create_ctx_template(). 73 * cr: crypto_call_req_t calling conditions and call back info. 74 * 75 * Description: 76 * Asynchronously submits a request for, or synchronously performs a 77 * single-part message authentication of 'data' with the mechanism 78 * 'mech', using * the key 'key', on the specified provider with 79 * the specified session id. 80 * When complete and successful, 'mac' will contain the message 81 * authentication code. 82 * 83 * Context: 84 * Process or interrupt, according to the semantics dictated by the 'crq'. 85 * 86 * Returns: 87 * See comment in the beginning of the file. 88 */ 89 int 90 crypto_mac_prov(crypto_provider_t provider, crypto_session_id_t sid, 91 crypto_mechanism_t *mech, crypto_data_t *data, crypto_key_t *key, 92 crypto_ctx_template_t tmpl, crypto_data_t *mac, crypto_call_req_t *crq) 93 { 94 kcf_req_params_t params; 95 kcf_provider_desc_t *pd = provider; 96 kcf_provider_desc_t *real_provider = pd; 97 int rv; 98 99 ASSERT(KCF_PROV_REFHELD(pd)); 100 101 if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) { 102 rv = kcf_get_hardware_provider(mech->cm_type, 103 CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd, 104 &real_provider, CRYPTO_FG_MAC_ATOMIC); 105 106 if (rv != CRYPTO_SUCCESS) 107 return (rv); 108 } 109 110 KCF_WRAP_MAC_OPS_PARAMS(¶ms, KCF_OP_ATOMIC, sid, mech, key, 111 data, mac, tmpl); 112 rv = kcf_submit_request(real_provider, NULL, crq, ¶ms, B_FALSE); 113 if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) 114 KCF_PROV_REFRELE(real_provider); 115 116 return (rv); 117 } 118 119 /* 120 * Same as crypto_mac_prov(), but relies on the KCF scheduler to choose 121 * a provider. See crypto_mac() comments for more information. 122 */ 123 int 124 crypto_mac(crypto_mechanism_t *mech, crypto_data_t *data, 125 crypto_key_t *key, crypto_ctx_template_t tmpl, crypto_data_t *mac, 126 crypto_call_req_t *crq) 127 { 128 int error; 129 kcf_mech_entry_t *me; 130 kcf_req_params_t params; 131 kcf_provider_desc_t *pd; 132 kcf_ctx_template_t *ctx_tmpl; 133 crypto_spi_ctx_template_t spi_ctx_tmpl = NULL; 134 kcf_prov_tried_t *list = NULL; 135 136 retry: 137 /* The pd is returned held */ 138 if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error, 139 list, CRYPTO_FG_MAC_ATOMIC, CHECK_RESTRICT(crq), 140 data->cd_length)) == NULL) { 141 if (list != NULL) 142 kcf_free_triedlist(list); 143 return (error); 144 } 145 146 /* 147 * For SW providers, check the validity of the context template 148 * It is very rare that the generation number mis-matches, so 149 * is acceptable to fail here, and let the consumer recover by 150 * freeing this tmpl and create a new one for the key and new SW 151 * provider 152 */ 153 if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) && 154 ((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) { 155 if (ctx_tmpl->ct_generation != me->me_gen_swprov) { 156 if (list != NULL) 157 kcf_free_triedlist(list); 158 KCF_PROV_REFRELE(pd); 159 return (CRYPTO_OLD_CTX_TEMPLATE); 160 } else { 161 spi_ctx_tmpl = ctx_tmpl->ct_prov_tmpl; 162 } 163 } 164 165 /* The fast path for SW providers. */ 166 if (CHECK_FASTPATH(crq, pd)) { 167 crypto_mechanism_t lmech; 168 169 lmech = *mech; 170 KCF_SET_PROVIDER_MECHNUM(mech->cm_type, pd, &lmech); 171 172 error = KCF_PROV_MAC_ATOMIC(pd, pd->pd_sid, &lmech, key, data, 173 mac, spi_ctx_tmpl, KCF_SWFP_RHNDL(crq)); 174 KCF_PROV_INCRSTATS(pd, error); 175 } else { 176 if (pd->pd_prov_type == CRYPTO_HW_PROVIDER && 177 (pd->pd_flags & CRYPTO_HASH_NO_UPDATE) && 178 (data->cd_length > pd->pd_hash_limit)) { 179 /* 180 * XXX - We need a check to see if this is indeed 181 * a HMAC. So far, all kernel clients use 182 * this interface only for HMAC. So, this is fine 183 * for now. 184 */ 185 error = CRYPTO_BUFFER_TOO_BIG; 186 } else { 187 KCF_WRAP_MAC_OPS_PARAMS(¶ms, KCF_OP_ATOMIC, 188 pd->pd_sid, mech, key, data, mac, spi_ctx_tmpl); 189 190 error = kcf_submit_request(pd, NULL, crq, ¶ms, 191 KCF_ISDUALREQ(crq)); 192 } 193 } 194 195 if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED && 196 IS_RECOVERABLE(error)) { 197 /* Add pd to the linked list of providers tried. */ 198 if (kcf_insert_triedlist(&list, pd, KCF_KMFLAG(crq)) != NULL) 199 goto retry; 200 } 201 202 if (list != NULL) 203 kcf_free_triedlist(list); 204 205 KCF_PROV_REFRELE(pd); 206 return (error); 207 } 208 209 /* 210 * Single part operation to compute the MAC corresponding to the specified 211 * 'data' and to verify that it matches the MAC specified by 'mac'. 212 * The other arguments are the same as the function crypto_mac_prov(). 213 */ 214 int 215 crypto_mac_verify_prov(crypto_provider_t provider, crypto_session_id_t sid, 216 crypto_mechanism_t *mech, crypto_data_t *data, crypto_key_t *key, 217 crypto_ctx_template_t tmpl, crypto_data_t *mac, crypto_call_req_t *crq) 218 { 219 kcf_req_params_t params; 220 kcf_provider_desc_t *pd = provider; 221 kcf_provider_desc_t *real_provider = pd; 222 int rv; 223 224 ASSERT(KCF_PROV_REFHELD(pd)); 225 226 if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) { 227 rv = kcf_get_hardware_provider(mech->cm_type, 228 CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd, 229 &real_provider, CRYPTO_FG_MAC_ATOMIC); 230 231 if (rv != CRYPTO_SUCCESS) 232 return (rv); 233 } 234 235 KCF_WRAP_MAC_OPS_PARAMS(¶ms, KCF_OP_MAC_VERIFY_ATOMIC, sid, mech, 236 key, data, mac, tmpl); 237 rv = kcf_submit_request(real_provider, NULL, crq, ¶ms, B_FALSE); 238 if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) 239 KCF_PROV_REFRELE(real_provider); 240 241 return (rv); 242 } 243 244 /* 245 * Same as crypto_mac_verify_prov(), but relies on the KCF scheduler to choose 246 * a provider. See crypto_mac_verify_prov() comments for more information. 247 */ 248 int 249 crypto_mac_verify(crypto_mechanism_t *mech, crypto_data_t *data, 250 crypto_key_t *key, crypto_ctx_template_t tmpl, crypto_data_t *mac, 251 crypto_call_req_t *crq) 252 { 253 int error; 254 kcf_mech_entry_t *me; 255 kcf_req_params_t params; 256 kcf_provider_desc_t *pd; 257 kcf_ctx_template_t *ctx_tmpl; 258 crypto_spi_ctx_template_t spi_ctx_tmpl = NULL; 259 kcf_prov_tried_t *list = NULL; 260 261 retry: 262 /* The pd is returned held */ 263 if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error, 264 list, CRYPTO_FG_MAC_ATOMIC, CHECK_RESTRICT(crq), 265 data->cd_length)) == NULL) { 266 if (list != NULL) 267 kcf_free_triedlist(list); 268 return (error); 269 } 270 271 /* 272 * For SW providers, check the validity of the context template 273 * It is very rare that the generation number mis-matches, so 274 * is acceptable to fail here, and let the consumer recover by 275 * freeing this tmpl and create a new one for the key and new SW 276 * provider 277 */ 278 if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) && 279 ((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) { 280 if (ctx_tmpl->ct_generation != me->me_gen_swprov) { 281 if (list != NULL) 282 kcf_free_triedlist(list); 283 KCF_PROV_REFRELE(pd); 284 return (CRYPTO_OLD_CTX_TEMPLATE); 285 } else { 286 spi_ctx_tmpl = ctx_tmpl->ct_prov_tmpl; 287 } 288 } 289 290 /* The fast path for SW providers. */ 291 if (CHECK_FASTPATH(crq, pd)) { 292 crypto_mechanism_t lmech; 293 294 lmech = *mech; 295 KCF_SET_PROVIDER_MECHNUM(mech->cm_type, pd, &lmech); 296 297 error = KCF_PROV_MAC_VERIFY_ATOMIC(pd, pd->pd_sid, &lmech, key, 298 data, mac, spi_ctx_tmpl, KCF_SWFP_RHNDL(crq)); 299 KCF_PROV_INCRSTATS(pd, error); 300 } else { 301 if (pd->pd_prov_type == CRYPTO_HW_PROVIDER && 302 (pd->pd_flags & CRYPTO_HASH_NO_UPDATE) && 303 (data->cd_length > pd->pd_hash_limit)) { 304 /* see comments in crypto_mac() */ 305 error = CRYPTO_BUFFER_TOO_BIG; 306 } else { 307 KCF_WRAP_MAC_OPS_PARAMS(¶ms, 308 KCF_OP_MAC_VERIFY_ATOMIC, pd->pd_sid, mech, 309 key, data, mac, spi_ctx_tmpl); 310 311 error = kcf_submit_request(pd, NULL, crq, ¶ms, 312 KCF_ISDUALREQ(crq)); 313 } 314 } 315 316 if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED && 317 IS_RECOVERABLE(error)) { 318 /* Add pd to the linked list of providers tried. */ 319 if (kcf_insert_triedlist(&list, pd, KCF_KMFLAG(crq)) != NULL) 320 goto retry; 321 } 322 323 if (list != NULL) 324 kcf_free_triedlist(list); 325 326 KCF_PROV_REFRELE(pd); 327 return (error); 328 } 329 330 /* 331 * crypto_mac_init_prov() 332 * 333 * Arguments: 334 * pd: pointer to the descriptor of the provider to use for this 335 * operation. 336 * sid: provider session id. 337 * mech: crypto_mechanism_t pointer. 338 * mech_type is a valid value previously returned by 339 * crypto_mech2id(); 340 * When the mech's parameter is not NULL, its definition depends 341 * on the standard definition of the mechanism. 342 * key: pointer to a crypto_key_t structure. 343 * tmpl: a crypto_ctx_template_t, opaque template of a context of a 344 * MAC with the 'mech' using 'key'. 'tmpl' is created by 345 * a previous call to crypto_create_ctx_template(). 346 * ctxp: Pointer to a crypto_context_t. 347 * cr: crypto_call_req_t calling conditions and call back info. 348 * 349 * Description: 350 * Asynchronously submits a request for, or synchronously performs the 351 * initialization of a MAC operation on the specified provider with 352 * the specified session. 353 * When possible and applicable, will internally use the pre-computed MAC 354 * context from the context template, tmpl. 355 * When complete and successful, 'ctxp' will contain a crypto_context_t 356 * valid for later calls to mac_update() and mac_final(). 357 * The caller should hold a reference on the specified provider 358 * descriptor before calling this function. 359 * 360 * Context: 361 * Process or interrupt, according to the semantics dictated by the 'cr'. 362 * 363 * Returns: 364 * See comment in the beginning of the file. 365 */ 366 int 367 crypto_mac_init_prov(crypto_provider_t provider, crypto_session_id_t sid, 368 crypto_mechanism_t *mech, crypto_key_t *key, crypto_spi_ctx_template_t tmpl, 369 crypto_context_t *ctxp, crypto_call_req_t *crq) 370 { 371 int rv; 372 crypto_ctx_t *ctx; 373 kcf_req_params_t params; 374 kcf_provider_desc_t *pd = provider; 375 kcf_provider_desc_t *real_provider = pd; 376 377 ASSERT(KCF_PROV_REFHELD(pd)); 378 379 if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) { 380 rv = kcf_get_hardware_provider(mech->cm_type, 381 CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd, 382 &real_provider, CRYPTO_FG_MAC); 383 384 if (rv != CRYPTO_SUCCESS) 385 return (rv); 386 } 387 388 /* Allocate and initialize the canonical context */ 389 if ((ctx = kcf_new_ctx(crq, real_provider, sid)) == NULL) { 390 if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) 391 KCF_PROV_REFRELE(real_provider); 392 return (CRYPTO_HOST_MEMORY); 393 } 394 395 /* The fast path for SW providers. */ 396 if (CHECK_FASTPATH(crq, pd)) { 397 crypto_mechanism_t lmech; 398 399 lmech = *mech; 400 KCF_SET_PROVIDER_MECHNUM(mech->cm_type, real_provider, &lmech); 401 rv = KCF_PROV_MAC_INIT(real_provider, ctx, &lmech, key, tmpl, 402 KCF_SWFP_RHNDL(crq)); 403 KCF_PROV_INCRSTATS(pd, rv); 404 } else { 405 KCF_WRAP_MAC_OPS_PARAMS(¶ms, KCF_OP_INIT, sid, mech, key, 406 NULL, NULL, tmpl); 407 rv = kcf_submit_request(real_provider, ctx, crq, ¶ms, 408 B_FALSE); 409 } 410 411 if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) 412 KCF_PROV_REFRELE(real_provider); 413 414 if ((rv == CRYPTO_SUCCESS) || (rv == CRYPTO_QUEUED)) 415 *ctxp = (crypto_context_t)ctx; 416 else { 417 /* Release the hold done in kcf_new_ctx(). */ 418 KCF_CONTEXT_REFRELE((kcf_context_t *)ctx->cc_framework_private); 419 } 420 421 return (rv); 422 } 423 424 /* 425 * Same as crypto_mac_init_prov(), but relies on the KCF scheduler to 426 * choose a provider. See crypto_mac_init_prov() comments for more 427 * information. 428 */ 429 int 430 crypto_mac_init(crypto_mechanism_t *mech, crypto_key_t *key, 431 crypto_ctx_template_t tmpl, crypto_context_t *ctxp, 432 crypto_call_req_t *crq) 433 { 434 int error; 435 kcf_mech_entry_t *me; 436 kcf_provider_desc_t *pd; 437 kcf_ctx_template_t *ctx_tmpl; 438 crypto_spi_ctx_template_t spi_ctx_tmpl = NULL; 439 kcf_prov_tried_t *list = NULL; 440 441 retry: 442 /* The pd is returned held */ 443 if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error, 444 list, CRYPTO_FG_MAC, CHECK_RESTRICT(crq), 0)) == NULL) { 445 if (list != NULL) 446 kcf_free_triedlist(list); 447 return (error); 448 } 449 450 /* 451 * For SW providers, check the validity of the context template 452 * It is very rare that the generation number mis-matches, so 453 * is acceptable to fail here, and let the consumer recover by 454 * freeing this tmpl and create a new one for the key and new SW 455 * provider 456 */ 457 458 if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) && 459 ((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) { 460 if (ctx_tmpl->ct_generation != me->me_gen_swprov) { 461 if (list != NULL) 462 kcf_free_triedlist(list); 463 KCF_PROV_REFRELE(pd); 464 return (CRYPTO_OLD_CTX_TEMPLATE); 465 } else { 466 spi_ctx_tmpl = ctx_tmpl->ct_prov_tmpl; 467 } 468 } 469 470 if (pd->pd_prov_type == CRYPTO_HW_PROVIDER && 471 (pd->pd_flags & CRYPTO_HASH_NO_UPDATE)) { 472 /* 473 * The hardware provider has limited HMAC support. 474 * So, we fallback early here to using a software provider. 475 * 476 * XXX - need to enhance to do the fallback later in 477 * crypto_mac_update() if the size of accumulated input data 478 * exceeds the maximum size digestable by hardware provider. 479 */ 480 error = CRYPTO_BUFFER_TOO_BIG; 481 } else { 482 error = crypto_mac_init_prov(pd, pd->pd_sid, mech, key, 483 spi_ctx_tmpl, ctxp, crq); 484 } 485 if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED && 486 IS_RECOVERABLE(error)) { 487 /* Add pd to the linked list of providers tried. */ 488 if (kcf_insert_triedlist(&list, pd, KCF_KMFLAG(crq)) != NULL) 489 goto retry; 490 } 491 492 if (list != NULL) 493 kcf_free_triedlist(list); 494 495 KCF_PROV_REFRELE(pd); 496 return (error); 497 } 498 499 /* 500 * crypto_mac_update() 501 * 502 * Arguments: 503 * context: A crypto_context_t initialized by mac_init(). 504 * data: The message part to be MAC'ed 505 * cr: crypto_call_req_t calling conditions and call back info. 506 * 507 * Description: 508 * Asynchronously submits a request for, or synchronously performs a 509 * part of a MAC operation. 510 * 511 * Context: 512 * Process or interrupt, according to the semantics dictated by the 'cr'. 513 * 514 * Returns: 515 * See comment in the beginning of the file. 516 */ 517 int 518 crypto_mac_update(crypto_context_t context, crypto_data_t *data, 519 crypto_call_req_t *cr) 520 { 521 crypto_ctx_t *ctx = (crypto_ctx_t *)context; 522 kcf_context_t *kcf_ctx; 523 kcf_provider_desc_t *pd; 524 kcf_req_params_t params; 525 int rv; 526 527 if ((ctx == NULL) || 528 ((kcf_ctx = (kcf_context_t *)ctx->cc_framework_private) == NULL) || 529 ((pd = kcf_ctx->kc_prov_desc) == NULL)) { 530 return (CRYPTO_INVALID_CONTEXT); 531 } 532 533 ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER); 534 535 /* The fast path for SW providers. */ 536 if (CHECK_FASTPATH(cr, pd)) { 537 rv = KCF_PROV_MAC_UPDATE(pd, ctx, data, NULL); 538 KCF_PROV_INCRSTATS(pd, rv); 539 } else { 540 KCF_WRAP_MAC_OPS_PARAMS(¶ms, KCF_OP_UPDATE, 541 ctx->cc_session, NULL, NULL, data, NULL, NULL); 542 rv = kcf_submit_request(pd, ctx, cr, ¶ms, B_FALSE); 543 } 544 545 return (rv); 546 } 547 548 /* 549 * crypto_mac_final() 550 * 551 * Arguments: 552 * context: A crypto_context_t initialized by mac_init(). 553 * mac: Storage for the message authentication code. 554 * cr: crypto_call_req_t calling conditions and call back info. 555 * 556 * Description: 557 * Asynchronously submits a request for, or synchronously performs a 558 * part of a message authentication operation. 559 * 560 * Context: 561 * Process or interrupt, according to the semantics dictated by the 'cr'. 562 * 563 * Returns: 564 * See comment in the beginning of the file. 565 */ 566 int 567 crypto_mac_final(crypto_context_t context, crypto_data_t *mac, 568 crypto_call_req_t *cr) 569 { 570 crypto_ctx_t *ctx = (crypto_ctx_t *)context; 571 kcf_context_t *kcf_ctx; 572 kcf_provider_desc_t *pd; 573 kcf_req_params_t params; 574 int rv; 575 576 if ((ctx == NULL) || 577 ((kcf_ctx = (kcf_context_t *)ctx->cc_framework_private) == NULL) || 578 ((pd = kcf_ctx->kc_prov_desc) == NULL)) { 579 return (CRYPTO_INVALID_CONTEXT); 580 } 581 582 ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER); 583 584 /* The fast path for SW providers. */ 585 if (CHECK_FASTPATH(cr, pd)) { 586 rv = KCF_PROV_MAC_FINAL(pd, ctx, mac, NULL); 587 KCF_PROV_INCRSTATS(pd, rv); 588 } else { 589 KCF_WRAP_MAC_OPS_PARAMS(¶ms, KCF_OP_FINAL, 590 ctx->cc_session, NULL, NULL, NULL, mac, NULL); 591 rv = kcf_submit_request(pd, ctx, cr, ¶ms, B_FALSE); 592 } 593 594 /* Release the hold done in kcf_new_ctx() during init step. */ 595 KCF_CONTEXT_COND_RELEASE(rv, kcf_ctx); 596 return (rv); 597 } 598 599 /* 600 * See comments for crypto_mac_update() and crypto_mac_final(). 601 */ 602 int 603 crypto_mac_single(crypto_context_t context, crypto_data_t *data, 604 crypto_data_t *mac, crypto_call_req_t *cr) 605 { 606 crypto_ctx_t *ctx = (crypto_ctx_t *)context; 607 kcf_context_t *kcf_ctx; 608 kcf_provider_desc_t *pd; 609 int error; 610 kcf_req_params_t params; 611 612 613 if ((ctx == NULL) || 614 ((kcf_ctx = (kcf_context_t *)ctx->cc_framework_private) == NULL) || 615 ((pd = kcf_ctx->kc_prov_desc) == NULL)) { 616 return (CRYPTO_INVALID_CONTEXT); 617 } 618 619 620 /* The fast path for SW providers. */ 621 if (CHECK_FASTPATH(cr, pd)) { 622 error = KCF_PROV_MAC(pd, ctx, data, mac, NULL); 623 KCF_PROV_INCRSTATS(pd, error); 624 } else { 625 KCF_WRAP_MAC_OPS_PARAMS(¶ms, KCF_OP_SINGLE, pd->pd_sid, 626 NULL, NULL, data, mac, NULL); 627 error = kcf_submit_request(pd, ctx, cr, ¶ms, B_FALSE); 628 } 629 630 /* Release the hold done in kcf_new_ctx() during init step. */ 631 KCF_CONTEXT_COND_RELEASE(error, kcf_ctx); 632 return (error); 633 } 634 635 #if defined(_KERNEL) 636 EXPORT_SYMBOL(crypto_mac_prov); 637 EXPORT_SYMBOL(crypto_mac); 638 EXPORT_SYMBOL(crypto_mac_verify_prov); 639 EXPORT_SYMBOL(crypto_mac_verify); 640 EXPORT_SYMBOL(crypto_mac_init_prov); 641 EXPORT_SYMBOL(crypto_mac_init); 642 EXPORT_SYMBOL(crypto_mac_update); 643 EXPORT_SYMBOL(crypto_mac_final); 644 EXPORT_SYMBOL(crypto_mac_single); 645 #endif 646