1 /* $FreeBSD$ */ 2 /* $OpenBSD: cryptodev.h,v 1.31 2002/06/11 11:14:29 beck Exp $ */ 3 4 /*- 5 * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu) 6 * Copyright (c) 2002-2006 Sam Leffler, Errno Consulting 7 * 8 * This code was written by Angelos D. Keromytis in Athens, Greece, in 9 * February 2000. Network Security Technologies Inc. (NSTI) kindly 10 * supported the development of this code. 11 * 12 * Copyright (c) 2000 Angelos D. Keromytis 13 * 14 * Permission to use, copy, and modify this software with or without fee 15 * is hereby granted, provided that this entire notice is included in 16 * all source code copies of any software which is or includes a copy or 17 * modification of this software. 18 * 19 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR 20 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY 21 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE 22 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR 23 * PURPOSE. 24 * 25 * Copyright (c) 2001 Theo de Raadt 26 * Copyright (c) 2014 The FreeBSD Foundation 27 * All rights reserved. 28 * 29 * Portions of this software were developed by John-Mark Gurney 30 * under sponsorship of the FreeBSD Foundation and 31 * Rubicon Communications, LLC (Netgate). 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. The name of the author may not be used to endorse or promote products 43 * derived from this software without specific prior written permission. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55 * 56 * Effort sponsored in part by the Defense Advanced Research Projects 57 * Agency (DARPA) and Air Force Research Laboratory, Air Force 58 * Materiel Command, USAF, under agreement number F30602-01-2-0537. 59 * 60 */ 61 62 #ifndef _CRYPTO_CRYPTO_H_ 63 #define _CRYPTO_CRYPTO_H_ 64 65 #include <sys/ioccom.h> 66 #include <sys/_task.h> 67 68 /* Some initial values */ 69 #define CRYPTO_DRIVERS_INITIAL 4 70 #define CRYPTO_SW_SESSIONS 32 71 72 /* Hash values */ 73 #define NULL_HASH_LEN 16 74 #define MD5_HASH_LEN 16 75 #define SHA1_HASH_LEN 20 76 #define RIPEMD160_HASH_LEN 20 77 #define SHA2_224_HASH_LEN 28 78 #define SHA2_256_HASH_LEN 32 79 #define SHA2_384_HASH_LEN 48 80 #define SHA2_512_HASH_LEN 64 81 #define MD5_KPDK_HASH_LEN 16 82 #define SHA1_KPDK_HASH_LEN 20 83 #define AES_GMAC_HASH_LEN 16 84 /* Maximum hash algorithm result length */ 85 #define HASH_MAX_LEN SHA2_512_HASH_LEN /* Keep this updated */ 86 87 #define MD5_BLOCK_LEN 64 88 #define SHA1_BLOCK_LEN 64 89 #define RIPEMD160_BLOCK_LEN 64 90 #define SHA2_224_BLOCK_LEN 64 91 #define SHA2_256_BLOCK_LEN 64 92 #define SHA2_384_BLOCK_LEN 128 93 #define SHA2_512_BLOCK_LEN 128 94 95 /* HMAC values */ 96 #define NULL_HMAC_BLOCK_LEN 64 97 /* Maximum HMAC block length */ 98 #define HMAC_MAX_BLOCK_LEN SHA2_512_BLOCK_LEN /* Keep this updated */ 99 #define HMAC_IPAD_VAL 0x36 100 #define HMAC_OPAD_VAL 0x5C 101 /* HMAC Key Length */ 102 #define AES_128_GMAC_KEY_LEN 16 103 #define AES_192_GMAC_KEY_LEN 24 104 #define AES_256_GMAC_KEY_LEN 32 105 106 /* Encryption algorithm block sizes */ 107 #define NULL_BLOCK_LEN 4 /* IPsec to maintain alignment */ 108 #define DES_BLOCK_LEN 8 109 #define DES3_BLOCK_LEN 8 110 #define BLOWFISH_BLOCK_LEN 8 111 #define SKIPJACK_BLOCK_LEN 8 112 #define CAST128_BLOCK_LEN 8 113 #define RIJNDAEL128_BLOCK_LEN 16 114 #define AES_BLOCK_LEN 16 115 #define AES_ICM_BLOCK_LEN 1 116 #define ARC4_BLOCK_LEN 1 117 #define CAMELLIA_BLOCK_LEN 16 118 #define CHACHA20_NATIVE_BLOCK_LEN 64 119 #define EALG_MAX_BLOCK_LEN CHACHA20_NATIVE_BLOCK_LEN /* Keep this updated */ 120 121 /* IV Lengths */ 122 123 #define ARC4_IV_LEN 1 124 #define AES_GCM_IV_LEN 12 125 #define AES_XTS_IV_LEN 8 126 #define AES_XTS_ALPHA 0x87 /* GF(2^128) generator polynomial */ 127 128 /* Min and Max Encryption Key Sizes */ 129 #define NULL_MIN_KEY 0 130 #define NULL_MAX_KEY 256 /* 2048 bits, max key */ 131 #define DES_MIN_KEY 8 132 #define DES_MAX_KEY DES_MIN_KEY 133 #define TRIPLE_DES_MIN_KEY 24 134 #define TRIPLE_DES_MAX_KEY TRIPLE_DES_MIN_KEY 135 #define BLOWFISH_MIN_KEY 5 136 #define BLOWFISH_MAX_KEY 56 /* 448 bits, max key */ 137 #define CAST_MIN_KEY 5 138 #define CAST_MAX_KEY 16 139 #define SKIPJACK_MIN_KEY 10 140 #define SKIPJACK_MAX_KEY SKIPJACK_MIN_KEY 141 #define RIJNDAEL_MIN_KEY 16 142 #define RIJNDAEL_MAX_KEY 32 143 #define AES_MIN_KEY RIJNDAEL_MIN_KEY 144 #define AES_MAX_KEY RIJNDAEL_MAX_KEY 145 #define AES_XTS_MIN_KEY (2 * AES_MIN_KEY) 146 #define AES_XTS_MAX_KEY (2 * AES_MAX_KEY) 147 #define ARC4_MIN_KEY 1 148 #define ARC4_MAX_KEY 32 149 #define CAMELLIA_MIN_KEY 8 150 #define CAMELLIA_MAX_KEY 32 151 152 /* Maximum hash algorithm result length */ 153 #define AALG_MAX_RESULT_LEN 64 /* Keep this updated */ 154 155 #define CRYPTO_ALGORITHM_MIN 1 156 #define CRYPTO_DES_CBC 1 157 #define CRYPTO_3DES_CBC 2 158 #define CRYPTO_BLF_CBC 3 159 #define CRYPTO_CAST_CBC 4 160 #define CRYPTO_SKIPJACK_CBC 5 161 #define CRYPTO_MD5_HMAC 6 162 #define CRYPTO_SHA1_HMAC 7 163 #define CRYPTO_RIPEMD160_HMAC 8 164 #define CRYPTO_MD5_KPDK 9 165 #define CRYPTO_SHA1_KPDK 10 166 #define CRYPTO_RIJNDAEL128_CBC 11 /* 128 bit blocksize */ 167 #define CRYPTO_AES_CBC 11 /* 128 bit blocksize -- the same as above */ 168 #define CRYPTO_ARC4 12 169 #define CRYPTO_MD5 13 170 #define CRYPTO_SHA1 14 171 #define CRYPTO_NULL_HMAC 15 172 #define CRYPTO_NULL_CBC 16 173 #define CRYPTO_DEFLATE_COMP 17 /* Deflate compression algorithm */ 174 #define CRYPTO_SHA2_256_HMAC 18 175 #define CRYPTO_SHA2_384_HMAC 19 176 #define CRYPTO_SHA2_512_HMAC 20 177 #define CRYPTO_CAMELLIA_CBC 21 178 #define CRYPTO_AES_XTS 22 179 #define CRYPTO_AES_ICM 23 /* commonly known as CTR mode */ 180 #define CRYPTO_AES_NIST_GMAC 24 /* cipher side */ 181 #define CRYPTO_AES_NIST_GCM_16 25 /* 16 byte ICV */ 182 #define CRYPTO_AES_128_NIST_GMAC 26 /* auth side */ 183 #define CRYPTO_AES_192_NIST_GMAC 27 /* auth side */ 184 #define CRYPTO_AES_256_NIST_GMAC 28 /* auth side */ 185 #define CRYPTO_BLAKE2B 29 /* Blake2b hash */ 186 #define CRYPTO_BLAKE2S 30 /* Blake2s hash */ 187 #define CRYPTO_CHACHA20 31 /* Chacha20 stream cipher */ 188 #define CRYPTO_SHA2_224_HMAC 32 189 #define CRYPTO_RIPEMD160 33 190 #define CRYPTO_SHA2_224 34 191 #define CRYPTO_SHA2_256 35 192 #define CRYPTO_SHA2_384 36 193 #define CRYPTO_SHA2_512 37 194 #define CRYPTO_ALGORITHM_MAX 37 /* Keep updated - see below */ 195 196 #define CRYPTO_ALGO_VALID(x) ((x) >= CRYPTO_ALGORITHM_MIN && \ 197 (x) <= CRYPTO_ALGORITHM_MAX) 198 199 /* Algorithm flags */ 200 #define CRYPTO_ALG_FLAG_SUPPORTED 0x01 /* Algorithm is supported */ 201 #define CRYPTO_ALG_FLAG_RNG_ENABLE 0x02 /* Has HW RNG for DH/DSA */ 202 #define CRYPTO_ALG_FLAG_DSA_SHA 0x04 /* Can do SHA on msg */ 203 204 /* 205 * Crypto driver/device flags. They can set in the crid 206 * parameter when creating a session or submitting a key 207 * op to affect the device/driver assigned. If neither 208 * of these are specified then the crid is assumed to hold 209 * the driver id of an existing (and suitable) device that 210 * must be used to satisfy the request. 211 */ 212 #define CRYPTO_FLAG_HARDWARE 0x01000000 /* hardware accelerated */ 213 #define CRYPTO_FLAG_SOFTWARE 0x02000000 /* software implementation */ 214 215 /* NB: deprecated */ 216 struct session_op { 217 u_int32_t cipher; /* ie. CRYPTO_DES_CBC */ 218 u_int32_t mac; /* ie. CRYPTO_MD5_HMAC */ 219 220 u_int32_t keylen; /* cipher key */ 221 c_caddr_t key; 222 int mackeylen; /* mac key */ 223 c_caddr_t mackey; 224 225 u_int32_t ses; /* returns: session # */ 226 }; 227 228 struct session2_op { 229 u_int32_t cipher; /* ie. CRYPTO_DES_CBC */ 230 u_int32_t mac; /* ie. CRYPTO_MD5_HMAC */ 231 232 u_int32_t keylen; /* cipher key */ 233 c_caddr_t key; 234 int mackeylen; /* mac key */ 235 c_caddr_t mackey; 236 237 u_int32_t ses; /* returns: session # */ 238 int crid; /* driver id + flags (rw) */ 239 int pad[4]; /* for future expansion */ 240 }; 241 242 struct crypt_op { 243 u_int32_t ses; 244 u_int16_t op; /* i.e. COP_ENCRYPT */ 245 #define COP_ENCRYPT 1 246 #define COP_DECRYPT 2 247 u_int16_t flags; 248 #define COP_F_CIPHER_FIRST 0x0001 /* Cipher before MAC. */ 249 #define COP_F_BATCH 0x0008 /* Batch op if possible */ 250 u_int len; 251 c_caddr_t src; /* become iov[] inside kernel */ 252 caddr_t dst; 253 caddr_t mac; /* must be big enough for chosen MAC */ 254 c_caddr_t iv; 255 }; 256 257 /* op and flags the same as crypt_op */ 258 struct crypt_aead { 259 u_int32_t ses; 260 u_int16_t op; /* i.e. COP_ENCRYPT */ 261 u_int16_t flags; 262 u_int len; 263 u_int aadlen; 264 u_int ivlen; 265 c_caddr_t src; /* become iov[] inside kernel */ 266 caddr_t dst; 267 c_caddr_t aad; /* additional authenticated data */ 268 caddr_t tag; /* must fit for chosen TAG length */ 269 c_caddr_t iv; 270 }; 271 272 /* 273 * Parameters for looking up a crypto driver/device by 274 * device name or by id. The latter are returned for 275 * created sessions (crid) and completed key operations. 276 */ 277 struct crypt_find_op { 278 int crid; /* driver id + flags */ 279 char name[32]; /* device/driver name */ 280 }; 281 282 /* bignum parameter, in packed bytes, ... */ 283 struct crparam { 284 caddr_t crp_p; 285 u_int crp_nbits; 286 }; 287 288 #define CRK_MAXPARAM 8 289 290 struct crypt_kop { 291 u_int crk_op; /* ie. CRK_MOD_EXP or other */ 292 u_int crk_status; /* return status */ 293 u_short crk_iparams; /* # of input parameters */ 294 u_short crk_oparams; /* # of output parameters */ 295 u_int crk_crid; /* NB: only used by CIOCKEY2 (rw) */ 296 struct crparam crk_param[CRK_MAXPARAM]; 297 }; 298 #define CRK_ALGORITM_MIN 0 299 #define CRK_MOD_EXP 0 300 #define CRK_MOD_EXP_CRT 1 301 #define CRK_DSA_SIGN 2 302 #define CRK_DSA_VERIFY 3 303 #define CRK_DH_COMPUTE_KEY 4 304 #define CRK_ALGORITHM_MAX 4 /* Keep updated - see below */ 305 306 #define CRF_MOD_EXP (1 << CRK_MOD_EXP) 307 #define CRF_MOD_EXP_CRT (1 << CRK_MOD_EXP_CRT) 308 #define CRF_DSA_SIGN (1 << CRK_DSA_SIGN) 309 #define CRF_DSA_VERIFY (1 << CRK_DSA_VERIFY) 310 #define CRF_DH_COMPUTE_KEY (1 << CRK_DH_COMPUTE_KEY) 311 312 /* 313 * done against open of /dev/crypto, to get a cloned descriptor. 314 * Please use F_SETFD against the cloned descriptor. 315 */ 316 #define CRIOGET _IOWR('c', 100, u_int32_t) 317 #define CRIOASYMFEAT CIOCASYMFEAT 318 #define CRIOFINDDEV CIOCFINDDEV 319 320 /* the following are done against the cloned descriptor */ 321 #define CIOCGSESSION _IOWR('c', 101, struct session_op) 322 #define CIOCFSESSION _IOW('c', 102, u_int32_t) 323 #define CIOCCRYPT _IOWR('c', 103, struct crypt_op) 324 #define CIOCKEY _IOWR('c', 104, struct crypt_kop) 325 #define CIOCASYMFEAT _IOR('c', 105, u_int32_t) 326 #define CIOCGSESSION2 _IOWR('c', 106, struct session2_op) 327 #define CIOCKEY2 _IOWR('c', 107, struct crypt_kop) 328 #define CIOCFINDDEV _IOWR('c', 108, struct crypt_find_op) 329 #define CIOCCRYPTAEAD _IOWR('c', 109, struct crypt_aead) 330 331 struct cryptotstat { 332 struct timespec acc; /* total accumulated time */ 333 struct timespec min; /* min time */ 334 struct timespec max; /* max time */ 335 u_int32_t count; /* number of observations */ 336 }; 337 338 struct cryptostats { 339 u_int32_t cs_ops; /* symmetric crypto ops submitted */ 340 u_int32_t cs_errs; /* symmetric crypto ops that failed */ 341 u_int32_t cs_kops; /* asymetric/key ops submitted */ 342 u_int32_t cs_kerrs; /* asymetric/key ops that failed */ 343 u_int32_t cs_intrs; /* crypto swi thread activations */ 344 u_int32_t cs_rets; /* crypto return thread activations */ 345 u_int32_t cs_blocks; /* symmetric op driver block */ 346 u_int32_t cs_kblocks; /* symmetric op driver block */ 347 /* 348 * When CRYPTO_TIMING is defined at compile time and the 349 * sysctl debug.crypto is set to 1, the crypto system will 350 * accumulate statistics about how long it takes to process 351 * crypto requests at various points during processing. 352 */ 353 struct cryptotstat cs_invoke; /* crypto_dipsatch -> crypto_invoke */ 354 struct cryptotstat cs_done; /* crypto_invoke -> crypto_done */ 355 struct cryptotstat cs_cb; /* crypto_done -> callback */ 356 struct cryptotstat cs_finis; /* callback -> callback return */ 357 }; 358 359 #ifdef _KERNEL 360 361 #if 0 362 #define CRYPTDEB(s, ...) do { \ 363 printf("%s:%d: " s "\n", __FILE__, __LINE__, ## __VA_ARGS__); \ 364 } while (0) 365 #else 366 #define CRYPTDEB(...) do { } while (0) 367 #endif 368 369 /* Standard initialization structure beginning */ 370 struct cryptoini { 371 int cri_alg; /* Algorithm to use */ 372 int cri_klen; /* Key length, in bits */ 373 int cri_mlen; /* Number of bytes we want from the 374 entire hash. 0 means all. */ 375 caddr_t cri_key; /* key to use */ 376 u_int8_t cri_iv[EALG_MAX_BLOCK_LEN]; /* IV to use */ 377 struct cryptoini *cri_next; 378 }; 379 380 /* Describe boundaries of a single crypto operation */ 381 struct cryptodesc { 382 int crd_skip; /* How many bytes to ignore from start */ 383 int crd_len; /* How many bytes to process */ 384 int crd_inject; /* Where to inject results, if applicable */ 385 int crd_flags; 386 387 #define CRD_F_ENCRYPT 0x01 /* Set when doing encryption */ 388 #define CRD_F_IV_PRESENT 0x02 /* When encrypting, IV is already in 389 place, so don't copy. */ 390 #define CRD_F_IV_EXPLICIT 0x04 /* IV explicitly provided */ 391 #define CRD_F_DSA_SHA_NEEDED 0x08 /* Compute SHA-1 of buffer for DSA */ 392 #define CRD_F_COMP 0x0f /* Set when doing compression */ 393 #define CRD_F_KEY_EXPLICIT 0x10 /* Key explicitly provided */ 394 395 struct cryptoini CRD_INI; /* Initialization/context data */ 396 #define crd_esn CRD_INI.cri_esn 397 #define crd_iv CRD_INI.cri_iv 398 #define crd_key CRD_INI.cri_key 399 #define crd_alg CRD_INI.cri_alg 400 #define crd_klen CRD_INI.cri_klen 401 402 struct cryptodesc *crd_next; 403 }; 404 405 /* Structure describing complete operation */ 406 struct cryptop { 407 TAILQ_ENTRY(cryptop) crp_next; 408 409 struct task crp_task; 410 411 u_int64_t crp_sid; /* Session ID */ 412 int crp_ilen; /* Input data total length */ 413 int crp_olen; /* Result total length */ 414 415 int crp_etype; /* 416 * Error type (zero means no error). 417 * All error codes except EAGAIN 418 * indicate possible data corruption (as in, 419 * the data have been touched). On all 420 * errors, the crp_sid may have changed 421 * (reset to a new one), so the caller 422 * should always check and use the new 423 * value on future requests. 424 */ 425 int crp_flags; 426 427 #define CRYPTO_F_IMBUF 0x0001 /* Input/output are mbuf chains */ 428 #define CRYPTO_F_IOV 0x0002 /* Input/output are uio */ 429 #define CRYPTO_F_BATCH 0x0008 /* Batch op if possible */ 430 #define CRYPTO_F_CBIMM 0x0010 /* Do callback immediately */ 431 #define CRYPTO_F_DONE 0x0020 /* Operation completed */ 432 #define CRYPTO_F_CBIFSYNC 0x0040 /* Do CBIMM if op is synchronous */ 433 #define CRYPTO_F_ASYNC 0x0080 /* Dispatch crypto jobs on several threads 434 * if op is synchronous 435 */ 436 #define CRYPTO_F_ASYNC_KEEPORDER 0x0100 /* 437 * Dispatch the crypto jobs in the same 438 * order there are submitted. Applied only 439 * if CRYPTO_F_ASYNC flags is set 440 */ 441 442 union { 443 caddr_t crp_buf; /* Data to be processed */ 444 struct mbuf *crp_mbuf; 445 struct uio *crp_uio; 446 }; 447 void * crp_opaque; /* Opaque pointer, passed along */ 448 struct cryptodesc *crp_desc; /* Linked list of processing descriptors */ 449 450 int (*crp_callback)(struct cryptop *); /* Callback function */ 451 452 struct bintime crp_tstamp; /* performance time stamp */ 453 uint32_t crp_seq; /* used for ordered dispatch */ 454 uint32_t crp_retw_id; /* 455 * the return worker to be used, 456 * used for ordered dispatch 457 */ 458 }; 459 460 #define CRYPTOP_ASYNC(crp) \ 461 (((crp)->crp_flags & CRYPTO_F_ASYNC) && \ 462 CRYPTO_SESID2CAPS((crp)->crp_sid) & CRYPTOCAP_F_SYNC) 463 #define CRYPTOP_ASYNC_KEEPORDER(crp) \ 464 (CRYPTOP_ASYNC(crp) && \ 465 (crp)->crp_flags & CRYPTO_F_ASYNC_KEEPORDER) 466 467 #define CRYPTO_BUF_CONTIG 0x0 468 #define CRYPTO_BUF_IOV 0x1 469 #define CRYPTO_BUF_MBUF 0x2 470 471 #define CRYPTO_OP_DECRYPT 0x0 472 #define CRYPTO_OP_ENCRYPT 0x1 473 474 /* 475 * Hints passed to process methods. 476 */ 477 #define CRYPTO_HINT_MORE 0x1 /* more ops coming shortly */ 478 479 struct cryptkop { 480 TAILQ_ENTRY(cryptkop) krp_next; 481 482 u_int krp_op; /* ie. CRK_MOD_EXP or other */ 483 u_int krp_status; /* return status */ 484 u_short krp_iparams; /* # of input parameters */ 485 u_short krp_oparams; /* # of output parameters */ 486 u_int krp_crid; /* desired device, etc. */ 487 u_int32_t krp_hid; 488 struct crparam krp_param[CRK_MAXPARAM]; /* kvm */ 489 int (*krp_callback)(struct cryptkop *); 490 }; 491 492 /* 493 * Session ids are 64 bits. The lower 32 bits contain a "local id" which 494 * is a driver-private session identifier. The upper 32 bits contain a 495 * "hardware id" used by the core crypto code to identify the driver and 496 * a copy of the driver's capabilities that can be used by client code to 497 * optimize operation. 498 */ 499 #define CRYPTO_SESID2HID(_sid) (((_sid) >> 32) & 0x00ffffff) 500 #define CRYPTO_SESID2CAPS(_sid) (((_sid) >> 32) & 0xff000000) 501 #define CRYPTO_SESID2LID(_sid) (((u_int32_t) (_sid)) & 0xffffffff) 502 503 MALLOC_DECLARE(M_CRYPTO_DATA); 504 505 extern int crypto_newsession(u_int64_t *sid, struct cryptoini *cri, int hard); 506 extern int crypto_freesession(u_int64_t sid); 507 #define CRYPTOCAP_F_HARDWARE CRYPTO_FLAG_HARDWARE 508 #define CRYPTOCAP_F_SOFTWARE CRYPTO_FLAG_SOFTWARE 509 #define CRYPTOCAP_F_SYNC 0x04000000 /* operates synchronously */ 510 extern int32_t crypto_get_driverid(device_t dev, int flags); 511 extern int crypto_find_driver(const char *); 512 extern device_t crypto_find_device_byhid(int hid); 513 extern int crypto_getcaps(int hid); 514 extern int crypto_register(u_int32_t driverid, int alg, u_int16_t maxoplen, 515 u_int32_t flags); 516 extern int crypto_kregister(u_int32_t, int, u_int32_t); 517 extern int crypto_unregister(u_int32_t driverid, int alg); 518 extern int crypto_unregister_all(u_int32_t driverid); 519 extern int crypto_dispatch(struct cryptop *crp); 520 extern int crypto_kdispatch(struct cryptkop *); 521 #define CRYPTO_SYMQ 0x1 522 #define CRYPTO_ASYMQ 0x2 523 extern int crypto_unblock(u_int32_t, int); 524 extern void crypto_done(struct cryptop *crp); 525 extern void crypto_kdone(struct cryptkop *); 526 extern int crypto_getfeat(int *); 527 528 extern void crypto_freereq(struct cryptop *crp); 529 extern struct cryptop *crypto_getreq(int num); 530 531 extern int crypto_usercrypto; /* userland may do crypto requests */ 532 extern int crypto_userasymcrypto; /* userland may do asym crypto reqs */ 533 extern int crypto_devallowsoft; /* only use hardware crypto */ 534 535 /* 536 * Crypto-related utility routines used mainly by drivers. 537 * 538 * XXX these don't really belong here; but for now they're 539 * kept apart from the rest of the system. 540 */ 541 struct uio; 542 extern void cuio_copydata(struct uio* uio, int off, int len, caddr_t cp); 543 extern void cuio_copyback(struct uio* uio, int off, int len, c_caddr_t cp); 544 extern int cuio_getptr(struct uio *uio, int loc, int *off); 545 extern int cuio_apply(struct uio *uio, int off, int len, 546 int (*f)(void *, void *, u_int), void *arg); 547 548 struct mbuf; 549 struct iovec; 550 extern int crypto_mbuftoiov(struct mbuf *mbuf, struct iovec **iovptr, 551 int *cnt, int *allocated); 552 553 extern void crypto_copyback(int flags, caddr_t buf, int off, int size, 554 c_caddr_t in); 555 extern void crypto_copydata(int flags, caddr_t buf, int off, int size, 556 caddr_t out); 557 extern int crypto_apply(int flags, caddr_t buf, int off, int len, 558 int (*f)(void *, void *, u_int), void *arg); 559 560 #endif /* _KERNEL */ 561 #endif /* _CRYPTO_CRYPTO_H_ */ 562