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 2010 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 27 /* 28 * The system call and DDI interface for the kernel SSL module 29 */ 30 31 #include <sys/types.h> 32 #include <sys/modctl.h> 33 #include <sys/conf.h> 34 #include <sys/stat.h> 35 #include <sys/ddi.h> 36 #include <sys/sunddi.h> 37 #include <sys/kmem.h> 38 #include <sys/errno.h> 39 #include <sys/file.h> 40 #include <sys/open.h> 41 #include <sys/cred.h> 42 #include <sys/proc.h> 43 #include <sys/task.h> 44 #include <sys/model.h> 45 #include <sys/sysmacros.h> 46 #include <sys/policy.h> 47 #include <sys/crypto/common.h> 48 #include <sys/crypto/api.h> 49 #include <c2/audit.h> 50 #include <sys/kstat.h> 51 52 #include "kssl.h" 53 #include "ksslimpl.h" 54 55 /* 56 * DDI entry points. 57 */ 58 static int kssl_attach(dev_info_t *, ddi_attach_cmd_t); 59 static int kssl_detach(dev_info_t *, ddi_detach_cmd_t); 60 static int kssl_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); 61 static int kssl_open(dev_t *, int, int, cred_t *); 62 static int kssl_close(dev_t, int, int, cred_t *); 63 static int kssl_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); 64 65 static int kssl_constructor(void *buf, void *arg, int kmflags); 66 static void kssl_destructor(void *buf, void *arg); 67 68 /* 69 * Module linkage. 70 */ 71 static struct cb_ops cbops = { 72 kssl_open, /* cb_open */ 73 kssl_close, /* cb_close */ 74 nodev, /* cb_strategy */ 75 nodev, /* cb_print */ 76 nodev, /* cb_dump */ 77 nodev, /* cb_read */ 78 nodev, /* cb_write */ 79 kssl_ioctl, /* cb_ioctl */ 80 nodev, /* cb_devmap */ 81 nodev, /* cb_mmap */ 82 nodev, /* cb_segmap */ 83 nochpoll, /* cb_chpoll */ 84 ddi_prop_op, /* cb_prop_op */ 85 NULL, /* cb_streamtab */ 86 D_MP, /* cb_flag */ 87 CB_REV, /* cb_rev */ 88 nodev, /* cb_aread */ 89 nodev, /* cb_awrite */ 90 }; 91 92 static struct dev_ops devops = { 93 DEVO_REV, /* devo_rev */ 94 0, /* devo_refcnt */ 95 kssl_getinfo, /* devo_getinfo */ 96 nulldev, /* devo_identify */ 97 nulldev, /* devo_probe */ 98 kssl_attach, /* devo_attach */ 99 kssl_detach, /* devo_detach */ 100 nodev, /* devo_reset */ 101 &cbops, /* devo_cb_ops */ 102 NULL, /* devo_bus_ops */ 103 NULL, /* devo_power */ 104 ddi_quiesce_not_needed, /* devo_quiesce */ 105 }; 106 107 static struct modldrv modldrv = { 108 &mod_driverops, /* drv_modops */ 109 "Kernel SSL Interface", /* drv_linkinfo */ 110 &devops, 111 }; 112 113 static struct modlinkage modlinkage = { 114 MODREV_1, /* ml_rev */ 115 &modldrv, /* ml_linkage */ 116 NULL 117 }; 118 119 static dev_info_t *kssl_dip = NULL; 120 121 crypto_mechanism_t rsa_x509_mech = {CRYPTO_MECH_INVALID, NULL, 0}; 122 crypto_mechanism_t hmac_md5_mech = {CRYPTO_MECH_INVALID, NULL, 0}; 123 crypto_mechanism_t hmac_sha1_mech = {CRYPTO_MECH_INVALID, NULL, 0}; 124 crypto_call_flag_t kssl_call_flag = CRYPTO_ALWAYS_QUEUE; 125 126 KSSLCipherDef cipher_defs[] = { /* indexed by SSL3BulkCipher */ 127 /* type bsize keysz crypto_mech_type_t */ 128 129 {type_stream, 0, 0, CRYPTO_MECH_INVALID}, 130 131 /* mech_type to be initialized with CKM_RC4's */ 132 {type_stream, 0, 16, CRYPTO_MECH_INVALID}, 133 134 /* mech_type to be initialized with CKM_DES_CBC's */ 135 {type_block, 8, 8, CRYPTO_MECH_INVALID}, 136 137 /* mech_type to be initialized with CKM_DES3_CBC's */ 138 {type_block, 8, 24, CRYPTO_MECH_INVALID}, 139 140 /* mech_type to be initialized with CKM_AES_CBC with 128-bit key */ 141 {type_block, 16, 16, CRYPTO_MECH_INVALID}, 142 143 /* mech_type to be initialized with CKM_AES_CBC with 256-bit key */ 144 {type_block, 16, 32, CRYPTO_MECH_INVALID}, 145 }; 146 147 struct kmem_cache *kssl_cache; 148 149 static void kssl_global_init(); 150 static void kssl_init_mechs(); 151 static void kssl_event_callback(uint32_t, void *); 152 153 /* 154 * DDI entry points. 155 */ 156 int 157 _init(void) 158 { 159 return (mod_install(&modlinkage)); 160 } 161 162 int 163 _info(struct modinfo *modinfop) 164 { 165 return (mod_info(&modlinkage, modinfop)); 166 } 167 168 /* ARGSUSED */ 169 static int 170 kssl_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) 171 { 172 switch (cmd) { 173 case DDI_INFO_DEVT2DEVINFO: 174 *result = kssl_dip; 175 return (DDI_SUCCESS); 176 177 case DDI_INFO_DEVT2INSTANCE: 178 *result = (void *)0; 179 return (DDI_SUCCESS); 180 } 181 return (DDI_FAILURE); 182 } 183 184 static int 185 kssl_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 186 { 187 if (cmd != DDI_ATTACH) { 188 return (DDI_FAILURE); 189 } 190 191 if (ddi_get_instance(dip) != 0) { 192 /* we only allow instance 0 to attach */ 193 return (DDI_FAILURE); 194 } 195 196 /* create the minor node */ 197 if (ddi_create_minor_node(dip, "kssl", S_IFCHR, 0, DDI_PSEUDO, 0) != 198 DDI_SUCCESS) { 199 cmn_err(CE_WARN, "kssl_attach: failed creating minor node"); 200 ddi_remove_minor_node(dip, NULL); 201 return (DDI_FAILURE); 202 } 203 204 kssl_dip = dip; 205 206 kssl_global_init(); 207 208 return (DDI_SUCCESS); 209 } 210 211 static kstat_t *kssl_ksp = NULL; 212 213 static int 214 kssl_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 215 { 216 if (cmd != DDI_DETACH) 217 return (DDI_FAILURE); 218 219 if (kssl_entry_tab_nentries != 0 || kssl_cache_count != 0) 220 return (DDI_FAILURE); 221 222 mutex_destroy(&kssl_tab_mutex); 223 kssl_dip = NULL; 224 225 if (kssl_cache != NULL) { 226 kmem_cache_destroy(kssl_cache); 227 kssl_cache = NULL; 228 } 229 230 if (kssl_ksp != NULL) { 231 kstat_delete(kssl_ksp); 232 kssl_ksp = NULL; 233 } 234 235 ddi_remove_minor_node(dip, NULL); 236 237 return (DDI_SUCCESS); 238 } 239 240 static crypto_notify_handle_t prov_update_handle = NULL; 241 242 /* ARGSUSED */ 243 static int 244 kssl_open(dev_t *devp, int flag, int otyp, cred_t *credp) 245 { 246 if (otyp != OTYP_CHR) 247 return (ENXIO); 248 249 if (kssl_dip == NULL) 250 return (ENXIO); 251 252 /* first time here? initialize everything */ 253 if (rsa_x509_mech.cm_type == CRYPTO_MECH_INVALID) { 254 kssl_init_mechs(); 255 prov_update_handle = crypto_notify_events( 256 kssl_event_callback, CRYPTO_EVENT_MECHS_CHANGED); 257 } 258 259 /* exclusive opens are not supported */ 260 if (flag & FEXCL) 261 return (ENOTSUP); 262 263 return (0); 264 } 265 266 /* ARGSUSED */ 267 static int 268 kssl_close(dev_t dev, int flag, int otyp, cred_t *credp) 269 { 270 return (0); 271 } 272 273 #define KSSL_MAX_KEYANDCERTS 80000 /* max 64K plus a little margin */ 274 275 /* ARGSUSED */ 276 static int 277 kssl_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *c, 278 int *rval) 279 { 280 int error = EINVAL; 281 uint32_t auditing = AU_AUDITING(); 282 283 #define ARG ((caddr_t)arg) 284 285 if (secpolicy_net_config(c, B_FALSE) != 0) { 286 return (EPERM); 287 } 288 289 switch (cmd) { 290 case KSSL_ADD_ENTRY: { 291 uint64_t len; 292 uint32_t ck_rv; 293 size_t off; 294 kssl_params_t *kssl_params; 295 296 off = offsetof(kssl_params_t, kssl_params_size); 297 if (copyin(ARG + off, &len, sizeof (len)) != 0) { 298 return (EFAULT); 299 } 300 301 if (len < sizeof (kssl_params_t) || 302 len > KSSL_MAX_KEYANDCERTS) { 303 return (EINVAL); 304 } 305 306 kssl_params = kmem_alloc(len, KM_SLEEP); 307 308 /* Get the whole structure and parameters in one move */ 309 if (copyin(ARG, kssl_params, len) != 0) { 310 kmem_free(kssl_params, len); 311 return (EFAULT); 312 } 313 error = kssl_add_entry(kssl_params); 314 if (auditing) 315 audit_kssl(KSSL_ADD_ENTRY, kssl_params, error); 316 off = offsetof(kssl_params_t, kssl_token) + 317 offsetof(kssl_tokinfo_t, ck_rv); 318 ck_rv = kssl_params->kssl_token.ck_rv; 319 if (copyout(&ck_rv, ARG + off, sizeof (ck_rv)) != 0) { 320 error = EFAULT; 321 } 322 323 bzero(kssl_params, len); 324 kmem_free(kssl_params, len); 325 break; 326 } 327 case KSSL_DELETE_ENTRY: { 328 struct sockaddr_in6 server_addr; 329 330 if (copyin(ARG, &server_addr, sizeof (server_addr)) != 0) { 331 return (EFAULT); 332 } 333 334 error = kssl_delete_entry(&server_addr); 335 if (auditing) 336 audit_kssl(KSSL_DELETE_ENTRY, &server_addr, error); 337 break; 338 } 339 } 340 341 return (error); 342 } 343 344 #define NUM_MECHS 7 345 static mech_to_cipher_t mech_to_cipher_tab[NUM_MECHS] = { 346 {CRYPTO_MECH_INVALID, SUN_CKM_RSA_X_509, 347 {SSL_RSA_WITH_RC4_128_MD5, SSL_RSA_WITH_RC4_128_SHA, 348 SSL_RSA_WITH_DES_CBC_SHA, SSL_RSA_WITH_3DES_EDE_CBC_SHA, 349 TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, 350 SSL_RSA_WITH_NULL_SHA}}, 351 {CRYPTO_MECH_INVALID, SUN_CKM_MD5_HMAC, {SSL_RSA_WITH_RC4_128_MD5}}, 352 {CRYPTO_MECH_INVALID, SUN_CKM_SHA1_HMAC, 353 {SSL_RSA_WITH_RC4_128_SHA, SSL_RSA_WITH_DES_CBC_SHA, 354 SSL_RSA_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_NULL_SHA, 355 TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA}}, 356 {CRYPTO_MECH_INVALID, SUN_CKM_RC4, 357 {SSL_RSA_WITH_RC4_128_MD5, SSL_RSA_WITH_RC4_128_SHA}}, 358 {CRYPTO_MECH_INVALID, SUN_CKM_DES_CBC, {SSL_RSA_WITH_DES_CBC_SHA}}, 359 {CRYPTO_MECH_INVALID, SUN_CKM_DES3_CBC, 360 {SSL_RSA_WITH_3DES_EDE_CBC_SHA}}, 361 {CRYPTO_MECH_INVALID, SUN_CKM_AES_CBC, 362 {TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA}}, 363 }; 364 365 static void 366 kssl_init_mechs() 367 { 368 mech_to_cipher_tab[0].mech = rsa_x509_mech.cm_type = 369 crypto_mech2id(SUN_CKM_RSA_X_509); 370 mech_to_cipher_tab[1].mech = hmac_md5_mech.cm_type = 371 crypto_mech2id(SUN_CKM_MD5_HMAC); 372 mech_to_cipher_tab[2].mech = hmac_sha1_mech.cm_type = 373 crypto_mech2id(SUN_CKM_SHA1_HMAC); 374 375 mech_to_cipher_tab[3].mech = cipher_defs[cipher_rc4].mech_type = 376 crypto_mech2id(SUN_CKM_RC4); 377 mech_to_cipher_tab[4].mech = cipher_defs[cipher_des].mech_type = 378 crypto_mech2id(SUN_CKM_DES_CBC); 379 mech_to_cipher_tab[5].mech = cipher_defs[cipher_3des].mech_type = 380 crypto_mech2id(SUN_CKM_DES3_CBC); 381 mech_to_cipher_tab[6].mech = cipher_defs[cipher_aes128].mech_type = 382 cipher_defs[cipher_aes256].mech_type = 383 crypto_mech2id(SUN_CKM_AES_CBC); 384 } 385 386 static int 387 is_in_suites(uint16_t s, uint16_t *sarray) 388 { 389 int i; 390 391 for (i = 0; i < CIPHER_SUITE_COUNT; i++) { 392 if (s == sarray[i]) 393 return (1); 394 } 395 396 return (0); 397 } 398 399 static int 400 is_in_mechlist(char *name, crypto_mech_name_t *mechs, int count) 401 { 402 int i; 403 404 for (i = 0; i < count; i++) { 405 if (strncmp(name, mechs[i], CRYPTO_MAX_MECH_NAME) == 0) 406 return (1); 407 } 408 409 return (0); 410 } 411 412 /* 413 * Callback function invoked by the crypto framework when a provider's 414 * mechanism is available/unavailable. This callback updates entries in the 415 * kssl_entry_tab[] to make changes to the cipher suites of an entry 416 * which are affected by the mechanism. 417 */ 418 static void 419 kssl_event_callback(uint32_t event, void *event_arg) 420 { 421 int i, j; 422 int cnt, rcnt; 423 uint16_t s; 424 boolean_t changed; 425 crypto_mech_name_t *mechs; 426 uint_t mech_count; 427 mech_to_cipher_t *mc; 428 kssl_entry_t *old; 429 kssl_entry_t *new; 430 uint16_t tmp_suites[CIPHER_SUITE_COUNT]; 431 uint16_t dis_list[CIPHER_SUITE_COUNT]; 432 crypto_notify_event_change_t *prov_change = 433 (crypto_notify_event_change_t *)event_arg; 434 435 /* ignore events for which we didn't register */ 436 if (event != CRYPTO_EVENT_MECHS_CHANGED) { 437 return; 438 } 439 440 for (i = 0; i < NUM_MECHS; i++) { 441 mc = &(mech_to_cipher_tab[i]); 442 if (mc->mech == CRYPTO_MECH_INVALID) 443 continue; 444 445 /* 446 * Check if this crypto framework provider mechanism being 447 * added or removed affects us. 448 */ 449 if (strncmp(mc->name, prov_change->ec_mech_name, 450 CRYPTO_MAX_MECH_NAME) == 0) 451 break; 452 } 453 454 if (i == NUM_MECHS) 455 return; 456 457 mechs = crypto_get_mech_list(&mech_count, KM_SLEEP); 458 if (mechs == NULL) 459 return; 460 461 mutex_enter(&kssl_tab_mutex); 462 463 for (i = 0; i < kssl_entry_tab_size; i++) { 464 if ((old = kssl_entry_tab[i]) == NULL) 465 continue; 466 467 cnt = 0; 468 rcnt = 0; 469 changed = B_FALSE; 470 for (j = 0; j < CIPHER_SUITE_COUNT; j++) { 471 tmp_suites[j] = CIPHER_NOTSET; 472 dis_list[j] = CIPHER_NOTSET; 473 } 474 475 /* 476 * We start with the saved cipher suite list for the new entry. 477 * If a mechanism is disabled, resulting in a cipher suite being 478 * disabled now, we take it out from the list for the new entry. 479 * If a mechanism is enabled, resulting in a cipher suite being 480 * enabled now, we don't need to do any thing. 481 */ 482 if (!is_in_mechlist(mc->name, mechs, mech_count)) { 483 for (j = 0; j < CIPHER_SUITE_COUNT; j++) { 484 s = mc->kssl_suites[j]; 485 if (s == 0) 486 break; 487 if (is_in_suites(s, old->kssl_saved_Suites)) { 488 /* Disable this cipher suite */ 489 if (!is_in_suites(s, dis_list)) 490 dis_list[cnt++] = s; 491 } 492 } 493 } 494 495 for (j = 0; j < CIPHER_SUITE_COUNT; j++) { 496 s = old->kssl_saved_Suites[j]; 497 if (!is_in_suites(s, dis_list)) 498 tmp_suites[rcnt] = s; 499 500 if (!changed && 501 (tmp_suites[rcnt] != old->kssl_cipherSuites[rcnt])) 502 changed = B_TRUE; 503 rcnt++; 504 } 505 506 if (changed) { 507 new = kmem_zalloc(sizeof (kssl_entry_t), KM_NOSLEEP); 508 if (new == NULL) 509 continue; 510 511 *new = *old; /* Structure copy */ 512 old->ke_no_freeall = B_TRUE; 513 new->ke_refcnt = 0; 514 new->kssl_cipherSuites_nentries = rcnt; 515 for (j = 0; j < CIPHER_SUITE_COUNT; j++) 516 new->kssl_cipherSuites[j] = tmp_suites[j]; 517 518 KSSL_ENTRY_REFHOLD(new); 519 kssl_entry_tab[i] = new; 520 KSSL_ENTRY_REFRELE(old); 521 } 522 } 523 524 mutex_exit(&kssl_tab_mutex); 525 crypto_free_mech_list(mechs, mech_count); 526 } 527 528 529 kssl_stats_t *kssl_statp; 530 531 static void 532 kssl_global_init() 533 { 534 mutex_init(&kssl_tab_mutex, NULL, MUTEX_DRIVER, NULL); 535 536 kssl_cache = kmem_cache_create("kssl_cache", sizeof (ssl_t), 537 0, kssl_constructor, kssl_destructor, NULL, NULL, NULL, 0); 538 539 if ((kssl_ksp = kstat_create("kssl", 0, "kssl_stats", "crypto", 540 KSTAT_TYPE_NAMED, sizeof (kssl_stats_t) / sizeof (kstat_named_t), 541 KSTAT_FLAG_PERSISTENT)) != NULL) { 542 kssl_statp = kssl_ksp->ks_data; 543 544 kstat_named_init(&kssl_statp->sid_cache_lookups, 545 "kssl_sid_cache_lookups", KSTAT_DATA_UINT64); 546 kstat_named_init(&kssl_statp->sid_cache_hits, 547 "kssl_sid_cache_hits", KSTAT_DATA_UINT64); 548 kstat_named_init(&kssl_statp->sid_cached, 549 "kssl_sid_cached", KSTAT_DATA_UINT64); 550 kstat_named_init(&kssl_statp->sid_uncached, 551 "kssl_sid_uncached", KSTAT_DATA_UINT64); 552 553 kstat_named_init(&kssl_statp->full_handshakes, 554 "kssl_full_handshakes", KSTAT_DATA_UINT64); 555 kstat_named_init(&kssl_statp->resumed_sessions, 556 "kssl_resumed_sessions", KSTAT_DATA_UINT64); 557 kstat_named_init(&kssl_statp->fallback_connections, 558 "kssl_fallback_connections", KSTAT_DATA_UINT64); 559 kstat_named_init(&kssl_statp->proxy_fallback_failed, 560 "kssl_proxy_fallback_failed", KSTAT_DATA_UINT64); 561 kstat_named_init(&kssl_statp->appdata_record_ins, 562 "kssl_appdata_record_ins", KSTAT_DATA_UINT64); 563 kstat_named_init(&kssl_statp->appdata_record_outs, 564 "kssl_appdata_record_outs", KSTAT_DATA_UINT64); 565 566 kstat_named_init(&kssl_statp->alloc_fails, "kssl_alloc_fails", 567 KSTAT_DATA_UINT64); 568 kstat_named_init(&kssl_statp->fatal_alerts, 569 "kssl_fatal_alerts", KSTAT_DATA_UINT64); 570 kstat_named_init(&kssl_statp->warning_alerts, 571 "kssl_warning_alerts", KSTAT_DATA_UINT64); 572 kstat_named_init(&kssl_statp->no_suite_found, 573 "kssl_no_suite_found", KSTAT_DATA_UINT64); 574 kstat_named_init(&kssl_statp->compute_mac_failure, 575 "kssl_compute_mac_failure", KSTAT_DATA_UINT64); 576 kstat_named_init(&kssl_statp->verify_mac_failure, 577 "kssl_verify_mac_failure", KSTAT_DATA_UINT64); 578 kstat_named_init(&kssl_statp->record_decrypt_failure, 579 "kssl_record_decrypt_failure", KSTAT_DATA_UINT64); 580 kstat_named_init(&kssl_statp->bad_pre_master_secret, 581 "kssl_bad_pre_master_secret", KSTAT_DATA_UINT64); 582 kstat_named_init(&kssl_statp->internal_errors, 583 "kssl_internal_errors", KSTAT_DATA_UINT64); 584 585 kstat_install(kssl_ksp); 586 }; 587 } 588 589 /*ARGSUSED*/ 590 static int 591 kssl_constructor(void *buf, void *arg, int kmflags) 592 { 593 ssl_t *ssl = buf; 594 595 mutex_init(&ssl->kssl_lock, NULL, MUTEX_DEFAULT, NULL); 596 597 return (0); 598 } 599 600 /*ARGSUSED*/ 601 static void 602 kssl_destructor(void *buf, void *arg) 603 { 604 ssl_t *ssl = buf; 605 mutex_destroy(&ssl->kssl_lock); 606 } 607 608 /* 609 * Handler routine called by the crypto framework when a 610 * provider is unregistered or registered. We invalidate the 611 * private key handle if our provider is unregistered. We set 612 * a flag to reauthenticate if our provider came back. 613 */ 614 void 615 kssl_prov_evnt(uint32_t event, void *event_arg) 616 { 617 int i, rv; 618 kssl_entry_t *ep; 619 kssl_session_info_t *s; 620 crypto_provider_t prov; 621 crypto_provider_ext_info_t info; 622 623 if (event != CRYPTO_EVENT_PROVIDER_UNREGISTERED && 624 event != CRYPTO_EVENT_PROVIDER_REGISTERED) 625 return; 626 627 prov = (crypto_provider_t)event_arg; 628 if (event == CRYPTO_EVENT_PROVIDER_REGISTERED) { 629 rv = crypto_get_provinfo(prov, &info); 630 if (rv != CRYPTO_SUCCESS) 631 return; 632 } 633 634 mutex_enter(&kssl_tab_mutex); 635 636 for (i = 0; i < kssl_entry_tab_size; i++) { 637 if ((ep = kssl_entry_tab[i]) == NULL) 638 continue; 639 640 s = ep->ke_sessinfo; 641 DTRACE_PROBE1(kssl_entry_cycle, kssl_entry_t *, ep); 642 switch (event) { 643 case CRYPTO_EVENT_PROVIDER_UNREGISTERED: 644 if (s->is_valid_handle && s->prov == prov) { 645 s->is_valid_handle = B_FALSE; 646 crypto_release_provider(s->prov); 647 } 648 break; 649 650 case CRYPTO_EVENT_PROVIDER_REGISTERED: 651 if (s->is_valid_handle) 652 break; 653 if (bcmp(s->toklabel, info.ei_label, 654 CRYPTO_EXT_SIZE_LABEL) == 0) { 655 s->do_reauth = B_TRUE; 656 } 657 break; 658 } 659 } 660 661 mutex_exit(&kssl_tab_mutex); 662 } 663