| 1 | /* $FreeBSD: src/sys/opencrypto/cryptodev.h,v 1.25 2007/05/09 19:37:02 gnn Exp $ */ |
| 2 | /* $OpenBSD: cryptodev.h,v 1.31 2002/06/11 11:14:29 beck Exp $ */ |
| 3 | |
| 4 | /*- |
| 5 | * Linux port done by David McCullough <david_mccullough@securecomputing.com> |
| 6 | * Copyright (C) 2006-2007 David McCullough |
| 7 | * Copyright (C) 2004-2005 Intel Corporation. |
| 8 | * The license and original author are listed below. |
| 9 | * |
| 10 | * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu) |
| 11 | * Copyright (c) 2002-2006 Sam Leffler, Errno Consulting |
| 12 | * |
| 13 | * This code was written by Angelos D. Keromytis in Athens, Greece, in |
| 14 | * February 2000. Network Security Technologies Inc. (NSTI) kindly |
| 15 | * supported the development of this code. |
| 16 | * |
| 17 | * Copyright (c) 2000 Angelos D. Keromytis |
| 18 | * |
| 19 | * Permission to use, copy, and modify this software with or without fee |
| 20 | * is hereby granted, provided that this entire notice is included in |
| 21 | * all source code copies of any software which is or includes a copy or |
| 22 | * modification of this software. |
| 23 | * |
| 24 | * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR |
| 25 | * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY |
| 26 | * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE |
| 27 | * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR |
| 28 | * PURPOSE. |
| 29 | * |
| 30 | * Copyright (c) 2001 Theo de Raadt |
| 31 | * |
| 32 | * Redistribution and use in source and binary forms, with or without |
| 33 | * modification, are permitted provided that the following conditions |
| 34 | * are met: |
| 35 | * |
| 36 | * 1. Redistributions of source code must retain the above copyright |
| 37 | * notice, this list of conditions and the following disclaimer. |
| 38 | * 2. Redistributions in binary form must reproduce the above copyright |
| 39 | * notice, this list of conditions and the following disclaimer in the |
| 40 | * documentation and/or other materials provided with the distribution. |
| 41 | * 3. The name of the author may not be used to endorse or promote products |
| 42 | * derived from this software without specific prior written permission. |
| 43 | * |
| 44 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 45 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 46 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 47 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 48 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 49 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 50 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 51 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 52 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 53 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 54 | * |
| 55 | * Effort sponsored in part by the Defense Advanced Research Projects |
| 56 | * Agency (DARPA) and Air Force Research Laboratory, Air Force |
| 57 | * Materiel Command, USAF, under agreement number F30602-01-2-0537. |
| 58 | * |
| 59 | */ |
| 60 | |
| 61 | #ifndef _CRYPTO_CRYPTO_H_ |
| 62 | #define _CRYPTO_CRYPTO_H_ |
| 63 | |
| 64 | /* Some initial values */ |
| 65 | #define CRYPTO_DRIVERS_INITIAL 4 |
| 66 | #define CRYPTO_SW_SESSIONS 32 |
| 67 | |
| 68 | /* Hash values */ |
| 69 | #define NULL_HASH_LEN 0 |
| 70 | #define MD5_HASH_LEN 16 |
| 71 | #define SHA1_HASH_LEN 20 |
| 72 | #define RIPEMD160_HASH_LEN 20 |
| 73 | #define SHA2_256_HASH_LEN 32 |
| 74 | #define SHA2_384_HASH_LEN 48 |
| 75 | #define SHA2_512_HASH_LEN 64 |
| 76 | #define MD5_KPDK_HASH_LEN 16 |
| 77 | #define SHA1_KPDK_HASH_LEN 20 |
| 78 | /* Maximum hash algorithm result length */ |
| 79 | #define HASH_MAX_LEN SHA2_512_HASH_LEN /* Keep this updated */ |
| 80 | |
| 81 | /* HMAC values */ |
| 82 | #define NULL_HMAC_BLOCK_LEN 1 |
| 83 | #define MD5_HMAC_BLOCK_LEN 64 |
| 84 | #define SHA1_HMAC_BLOCK_LEN 64 |
| 85 | #define RIPEMD160_HMAC_BLOCK_LEN 64 |
| 86 | #define SHA2_256_HMAC_BLOCK_LEN 64 |
| 87 | #define SHA2_384_HMAC_BLOCK_LEN 128 |
| 88 | #define SHA2_512_HMAC_BLOCK_LEN 128 |
| 89 | /* Maximum HMAC block length */ |
| 90 | #define HMAC_MAX_BLOCK_LEN SHA2_512_HMAC_BLOCK_LEN /* Keep this updated */ |
| 91 | #define HMAC_IPAD_VAL 0x36 |
| 92 | #define HMAC_OPAD_VAL 0x5C |
| 93 | |
| 94 | /* Encryption algorithm block sizes */ |
| 95 | #define NULL_BLOCK_LEN 1 |
| 96 | #define DES_BLOCK_LEN 8 |
| 97 | #define DES3_BLOCK_LEN 8 |
| 98 | #define BLOWFISH_BLOCK_LEN 8 |
| 99 | #define SKIPJACK_BLOCK_LEN 8 |
| 100 | #define CAST128_BLOCK_LEN 8 |
| 101 | #define RIJNDAEL128_BLOCK_LEN 16 |
| 102 | #define AES_BLOCK_LEN RIJNDAEL128_BLOCK_LEN |
| 103 | #define CAMELLIA_BLOCK_LEN 16 |
| 104 | #define ARC4_BLOCK_LEN 1 |
| 105 | #define EALG_MAX_BLOCK_LEN AES_BLOCK_LEN /* Keep this updated */ |
| 106 | |
| 107 | /* Encryption algorithm min and max key sizes */ |
| 108 | #define NULL_MIN_KEY_LEN 0 |
| 109 | #define NULL_MAX_KEY_LEN 0 |
| 110 | #define DES_MIN_KEY_LEN 8 |
| 111 | #define DES_MAX_KEY_LEN 8 |
| 112 | #define DES3_MIN_KEY_LEN 24 |
| 113 | #define DES3_MAX_KEY_LEN 24 |
| 114 | #define BLOWFISH_MIN_KEY_LEN 4 |
| 115 | #define BLOWFISH_MAX_KEY_LEN 56 |
| 116 | #define SKIPJACK_MIN_KEY_LEN 10 |
| 117 | #define SKIPJACK_MAX_KEY_LEN 10 |
| 118 | #define CAST128_MIN_KEY_LEN 5 |
| 119 | #define CAST128_MAX_KEY_LEN 16 |
| 120 | #define RIJNDAEL128_MIN_KEY_LEN 16 |
| 121 | #define RIJNDAEL128_MAX_KEY_LEN 32 |
| 122 | #define AES_MIN_KEY_LEN RIJNDAEL128_MIN_KEY_LEN |
| 123 | #define AES_MAX_KEY_LEN RIJNDAEL128_MAX_KEY_LEN |
| 124 | #define CAMELLIA_MIN_KEY_LEN 16 |
| 125 | #define CAMELLIA_MAX_KEY_LEN 32 |
| 126 | #define ARC4_MIN_KEY_LEN 1 |
| 127 | #define ARC4_MAX_KEY_LEN 256 |
| 128 | |
| 129 | /* Max size of data that can be processed */ |
| 130 | #define CRYPTO_MAX_DATA_LEN 64*1024 - 1 |
| 131 | |
| 132 | #define CRYPTO_ALGORITHM_MIN 1 |
| 133 | #define CRYPTO_DES_CBC 1 |
| 134 | #define CRYPTO_3DES_CBC 2 |
| 135 | #define CRYPTO_BLF_CBC 3 |
| 136 | #define CRYPTO_CAST_CBC 4 |
| 137 | #define CRYPTO_SKIPJACK_CBC 5 |
| 138 | #define CRYPTO_MD5_HMAC 6 |
| 139 | #define CRYPTO_SHA1_HMAC 7 |
| 140 | #define CRYPTO_RIPEMD160_HMAC 8 |
| 141 | #define CRYPTO_MD5_KPDK 9 |
| 142 | #define CRYPTO_SHA1_KPDK 10 |
| 143 | #define CRYPTO_RIJNDAEL128_CBC 11 /* 128 bit blocksize */ |
| 144 | #define CRYPTO_AES_CBC 11 /* 128 bit blocksize -- the same as above */ |
| 145 | #define CRYPTO_ARC4 12 |
| 146 | #define CRYPTO_MD5 13 |
| 147 | #define CRYPTO_SHA1 14 |
| 148 | #define CRYPTO_NULL_HMAC 15 |
| 149 | #define CRYPTO_NULL_CBC 16 |
| 150 | #define CRYPTO_DEFLATE_COMP 17 /* Deflate compression algorithm */ |
| 151 | #define CRYPTO_SHA2_256_HMAC 18 |
| 152 | #define CRYPTO_SHA2_384_HMAC 19 |
| 153 | #define CRYPTO_SHA2_512_HMAC 20 |
| 154 | #define CRYPTO_CAMELLIA_CBC 21 |
| 155 | #define CRYPTO_SHA2_256 22 |
| 156 | #define CRYPTO_SHA2_384 23 |
| 157 | #define CRYPTO_SHA2_512 24 |
| 158 | #define CRYPTO_RIPEMD160 25 |
| 159 | #define CRYPTO_ALGORITHM_MAX 25 /* Keep updated - see below */ |
| 160 | |
| 161 | /* Algorithm flags */ |
| 162 | #define CRYPTO_ALG_FLAG_SUPPORTED 0x01 /* Algorithm is supported */ |
| 163 | #define CRYPTO_ALG_FLAG_RNG_ENABLE 0x02 /* Has HW RNG for DH/DSA */ |
| 164 | #define CRYPTO_ALG_FLAG_DSA_SHA 0x04 /* Can do SHA on msg */ |
| 165 | |
| 166 | /* |
| 167 | * Crypto driver/device flags. They can set in the crid |
| 168 | * parameter when creating a session or submitting a key |
| 169 | * op to affect the device/driver assigned. If neither |
| 170 | * of these are specified then the crid is assumed to hold |
| 171 | * the driver id of an existing (and suitable) device that |
| 172 | * must be used to satisfy the request. |
| 173 | */ |
| 174 | #define CRYPTO_FLAG_HARDWARE 0x01000000 /* hardware accelerated */ |
| 175 | #define CRYPTO_FLAG_SOFTWARE 0x02000000 /* software implementation */ |
| 176 | |
| 177 | /* NB: deprecated */ |
| 178 | struct session_op { |
| 179 | u_int32_t cipher; /* ie. CRYPTO_DES_CBC */ |
| 180 | u_int32_t mac; /* ie. CRYPTO_MD5_HMAC */ |
| 181 | |
| 182 | u_int32_t keylen; /* cipher key */ |
| 183 | caddr_t key; |
| 184 | int mackeylen; /* mac key */ |
| 185 | caddr_t mackey; |
| 186 | |
| 187 | u_int32_t ses; /* returns: session # */ |
| 188 | }; |
| 189 | |
| 190 | struct session2_op { |
| 191 | u_int32_t cipher; /* ie. CRYPTO_DES_CBC */ |
| 192 | u_int32_t mac; /* ie. CRYPTO_MD5_HMAC */ |
| 193 | |
| 194 | u_int32_t keylen; /* cipher key */ |
| 195 | caddr_t key; |
| 196 | int mackeylen; /* mac key */ |
| 197 | caddr_t mackey; |
| 198 | |
| 199 | u_int32_t ses; /* returns: session # */ |
| 200 | int crid; /* driver id + flags (rw) */ |
| 201 | int pad[4]; /* for future expansion */ |
| 202 | }; |
| 203 | |
| 204 | struct crypt_op { |
| 205 | u_int32_t ses; |
| 206 | u_int16_t op; /* i.e. COP_ENCRYPT */ |
| 207 | #define COP_NONE 0 |
| 208 | #define COP_ENCRYPT 1 |
| 209 | #define COP_DECRYPT 2 |
| 210 | u_int16_t flags; |
| 211 | #define COP_F_BATCH 0x0008 /* Batch op if possible */ |
| 212 | u_int len; |
| 213 | caddr_t src, dst; /* become iov[] inside kernel */ |
| 214 | caddr_t mac; /* must be big enough for chosen MAC */ |
| 215 | caddr_t iv; |
| 216 | }; |
| 217 | |
| 218 | /* |
| 219 | * Parameters for looking up a crypto driver/device by |
| 220 | * device name or by id. The latter are returned for |
| 221 | * created sessions (crid) and completed key operations. |
| 222 | */ |
| 223 | struct crypt_find_op { |
| 224 | int crid; /* driver id + flags */ |
| 225 | char name[32]; /* device/driver name */ |
| 226 | }; |
| 227 | |
| 228 | /* bignum parameter, in packed bytes, ... */ |
| 229 | struct crparam { |
| 230 | caddr_t crp_p; |
| 231 | u_int crp_nbits; |
| 232 | }; |
| 233 | |
| 234 | #define CRK_MAXPARAM 8 |
| 235 | |
| 236 | struct crypt_kop { |
| 237 | u_int crk_op; /* ie. CRK_MOD_EXP or other */ |
| 238 | u_int crk_status; /* return status */ |
| 239 | u_short crk_iparams; /* # of input parameters */ |
| 240 | u_short crk_oparams; /* # of output parameters */ |
| 241 | u_int crk_crid; /* NB: only used by CIOCKEY2 (rw) */ |
| 242 | struct crparam crk_param[CRK_MAXPARAM]; |
| 243 | }; |
| 244 | #define CRK_ALGORITM_MIN 0 |
| 245 | #define CRK_MOD_EXP 0 |
| 246 | #define CRK_MOD_EXP_CRT 1 |
| 247 | #define CRK_DSA_SIGN 2 |
| 248 | #define CRK_DSA_VERIFY 3 |
| 249 | #define CRK_DH_COMPUTE_KEY 4 |
| 250 | #define CRK_ALGORITHM_MAX 4 /* Keep updated - see below */ |
| 251 | |
| 252 | #define CRF_MOD_EXP (1 << CRK_MOD_EXP) |
| 253 | #define CRF_MOD_EXP_CRT (1 << CRK_MOD_EXP_CRT) |
| 254 | #define CRF_DSA_SIGN (1 << CRK_DSA_SIGN) |
| 255 | #define CRF_DSA_VERIFY (1 << CRK_DSA_VERIFY) |
| 256 | #define CRF_DH_COMPUTE_KEY (1 << CRK_DH_COMPUTE_KEY) |
| 257 | |
| 258 | /* |
| 259 | * done against open of /dev/crypto, to get a cloned descriptor. |
| 260 | * Please use F_SETFD against the cloned descriptor. |
| 261 | */ |
| 262 | #define CRIOGET _IOWR('c', 100, u_int32_t) |
| 263 | #define CRIOASYMFEAT CIOCASYMFEAT |
| 264 | #define CRIOFINDDEV CIOCFINDDEV |
| 265 | |
| 266 | /* the following are done against the cloned descriptor */ |
| 267 | #define CIOCGSESSION _IOWR('c', 101, struct session_op) |
| 268 | #define CIOCFSESSION _IOW('c', 102, u_int32_t) |
| 269 | #define CIOCCRYPT _IOWR('c', 103, struct crypt_op) |
| 270 | #define CIOCKEY _IOWR('c', 104, struct crypt_kop) |
| 271 | #define CIOCASYMFEAT _IOR('c', 105, u_int32_t) |
| 272 | #define CIOCGSESSION2 _IOWR('c', 106, struct session2_op) |
| 273 | #define CIOCKEY2 _IOWR('c', 107, struct crypt_kop) |
| 274 | #define CIOCFINDDEV _IOWR('c', 108, struct crypt_find_op) |
| 275 | |
| 276 | struct cryptotstat { |
| 277 | struct timespec acc; /* total accumulated time */ |
| 278 | struct timespec min; /* min time */ |
| 279 | struct timespec max; /* max time */ |
| 280 | u_int32_t count; /* number of observations */ |
| 281 | }; |
| 282 | |
| 283 | struct cryptostats { |
| 284 | u_int32_t cs_ops; /* symmetric crypto ops submitted */ |
| 285 | u_int32_t cs_errs; /* symmetric crypto ops that failed */ |
| 286 | u_int32_t cs_kops; /* asymetric/key ops submitted */ |
| 287 | u_int32_t cs_kerrs; /* asymetric/key ops that failed */ |
| 288 | u_int32_t cs_intrs; /* crypto swi thread activations */ |
| 289 | u_int32_t cs_rets; /* crypto return thread activations */ |
| 290 | u_int32_t cs_blocks; /* symmetric op driver block */ |
| 291 | u_int32_t cs_kblocks; /* symmetric op driver block */ |
| 292 | /* |
| 293 | * When CRYPTO_TIMING is defined at compile time and the |
| 294 | * sysctl debug.crypto is set to 1, the crypto system will |
| 295 | * accumulate statistics about how long it takes to process |
| 296 | * crypto requests at various points during processing. |
| 297 | */ |
| 298 | struct cryptotstat cs_invoke; /* crypto_dipsatch -> crypto_invoke */ |
| 299 | struct cryptotstat cs_done; /* crypto_invoke -> crypto_done */ |
| 300 | struct cryptotstat cs_cb; /* crypto_done -> callback */ |
| 301 | struct cryptotstat cs_finis; /* callback -> callback return */ |
| 302 | |
| 303 | u_int32_t cs_drops; /* crypto ops dropped due to congestion */ |
| 304 | }; |
| 305 | |
| 306 | #ifdef __KERNEL__ |
| 307 | |
| 308 | /* Standard initialization structure beginning */ |
| 309 | struct cryptoini { |
| 310 | int cri_alg; /* Algorithm to use */ |
| 311 | int cri_klen; /* Key length, in bits */ |
| 312 | int cri_mlen; /* Number of bytes we want from the |
| 313 | entire hash. 0 means all. */ |
| 314 | caddr_t cri_key; /* key to use */ |
| 315 | u_int8_t cri_iv[EALG_MAX_BLOCK_LEN]; /* IV to use */ |
| 316 | struct cryptoini *cri_next; |
| 317 | }; |
| 318 | |
| 319 | /* Describe boundaries of a single crypto operation */ |
| 320 | struct cryptodesc { |
| 321 | int crd_skip; /* How many bytes to ignore from start */ |
| 322 | int crd_len; /* How many bytes to process */ |
| 323 | int crd_inject; /* Where to inject results, if applicable */ |
| 324 | int crd_flags; |
| 325 | |
| 326 | #define CRD_F_ENCRYPT 0x01 /* Set when doing encryption */ |
| 327 | #define CRD_F_IV_PRESENT 0x02 /* When encrypting, IV is already in |
| 328 | place, so don't copy. */ |
| 329 | #define CRD_F_IV_EXPLICIT 0x04 /* IV explicitly provided */ |
| 330 | #define CRD_F_DSA_SHA_NEEDED 0x08 /* Compute SHA-1 of buffer for DSA */ |
| 331 | #define CRD_F_KEY_EXPLICIT 0x10 /* Key explicitly provided */ |
| 332 | #define CRD_F_COMP 0x0f /* Set when doing compression */ |
| 333 | |
| 334 | struct cryptoini CRD_INI; /* Initialization/context data */ |
| 335 | #define crd_iv CRD_INI.cri_iv |
| 336 | #define crd_key CRD_INI.cri_key |
| 337 | #define crd_alg CRD_INI.cri_alg |
| 338 | #define crd_klen CRD_INI.cri_klen |
| 339 | |
| 340 | struct cryptodesc *crd_next; |
| 341 | }; |
| 342 | |
| 343 | /* Structure describing complete operation */ |
| 344 | struct cryptop { |
| 345 | struct list_head crp_next; |
| 346 | wait_queue_head_t crp_waitq; |
| 347 | |
| 348 | u_int64_t crp_sid; /* Session ID */ |
| 349 | int crp_ilen; /* Input data total length */ |
| 350 | int crp_olen; /* Result total length */ |
| 351 | |
| 352 | int crp_etype; /* |
| 353 | * Error type (zero means no error). |
| 354 | * All error codes except EAGAIN |
| 355 | * indicate possible data corruption (as in, |
| 356 | * the data have been touched). On all |
| 357 | * errors, the crp_sid may have changed |
| 358 | * (reset to a new one), so the caller |
| 359 | * should always check and use the new |
| 360 | * value on future requests. |
| 361 | */ |
| 362 | int crp_flags; |
| 363 | |
| 364 | #define CRYPTO_F_SKBUF 0x0001 /* Input/output are skbuf chains */ |
| 365 | #define CRYPTO_F_IOV 0x0002 /* Input/output are uio */ |
| 366 | #define CRYPTO_F_REL 0x0004 /* Must return data in same place */ |
| 367 | #define CRYPTO_F_BATCH 0x0008 /* Batch op if possible */ |
| 368 | #define CRYPTO_F_CBIMM 0x0010 /* Do callback immediately */ |
| 369 | #define CRYPTO_F_DONE 0x0020 /* Operation completed */ |
| 370 | #define CRYPTO_F_CBIFSYNC 0x0040 /* Do CBIMM if op is synchronous */ |
| 371 | |
| 372 | caddr_t crp_buf; /* Data to be processed */ |
| 373 | caddr_t crp_opaque; /* Opaque pointer, passed along */ |
| 374 | struct cryptodesc *crp_desc; /* Linked list of processing descriptors */ |
| 375 | |
| 376 | int (*crp_callback)(struct cryptop *); /* Callback function */ |
| 377 | }; |
| 378 | |
| 379 | #define CRYPTO_BUF_CONTIG 0x0 |
| 380 | #define CRYPTO_BUF_IOV 0x1 |
| 381 | #define CRYPTO_BUF_SKBUF 0x2 |
| 382 | |
| 383 | #define CRYPTO_OP_DECRYPT 0x0 |
| 384 | #define CRYPTO_OP_ENCRYPT 0x1 |
| 385 | |
| 386 | /* |
| 387 | * Hints passed to process methods. |
| 388 | */ |
| 389 | #define CRYPTO_HINT_MORE 0x1 /* more ops coming shortly */ |
| 390 | |
| 391 | struct cryptkop { |
| 392 | struct list_head krp_next; |
| 393 | wait_queue_head_t krp_waitq; |
| 394 | |
| 395 | int krp_flags; |
| 396 | #define CRYPTO_KF_DONE 0x0001 /* Operation completed */ |
| 397 | #define CRYPTO_KF_CBIMM 0x0002 /* Do callback immediately */ |
| 398 | |
| 399 | u_int krp_op; /* ie. CRK_MOD_EXP or other */ |
| 400 | u_int krp_status; /* return status */ |
| 401 | u_short krp_iparams; /* # of input parameters */ |
| 402 | u_short krp_oparams; /* # of output parameters */ |
| 403 | u_int krp_crid; /* desired device, etc. */ |
| 404 | u_int32_t krp_hid; |
| 405 | struct crparam krp_param[CRK_MAXPARAM]; /* kvm */ |
| 406 | int (*krp_callback)(struct cryptkop *); |
| 407 | }; |
| 408 | |
| 409 | #include "ocf-compat.h" |
| 410 | |
| 411 | /* |
| 412 | * Session ids are 64 bits. The lower 32 bits contain a "local id" which |
| 413 | * is a driver-private session identifier. The upper 32 bits contain a |
| 414 | * "hardware id" used by the core crypto code to identify the driver and |
| 415 | * a copy of the driver's capabilities that can be used by client code to |
| 416 | * optimize operation. |
| 417 | */ |
| 418 | #define CRYPTO_SESID2HID(_sid) (((_sid) >> 32) & 0x00ffffff) |
| 419 | #define CRYPTO_SESID2CAPS(_sid) (((_sid) >> 32) & 0xff000000) |
| 420 | #define CRYPTO_SESID2LID(_sid) (((u_int32_t) (_sid)) & 0xffffffff) |
| 421 | |
| 422 | extern int crypto_newsession(u_int64_t *sid, struct cryptoini *cri, int hard); |
| 423 | extern int crypto_freesession(u_int64_t sid); |
| 424 | #define CRYPTOCAP_F_HARDWARE CRYPTO_FLAG_HARDWARE |
| 425 | #define CRYPTOCAP_F_SOFTWARE CRYPTO_FLAG_SOFTWARE |
| 426 | #define CRYPTOCAP_F_SYNC 0x04000000 /* operates synchronously */ |
| 427 | extern int32_t crypto_get_driverid(device_t dev, int flags); |
| 428 | extern int crypto_find_driver(const char *); |
| 429 | extern device_t crypto_find_device_byhid(int hid); |
| 430 | extern int crypto_getcaps(int hid); |
| 431 | extern int crypto_register(u_int32_t driverid, int alg, u_int16_t maxoplen, |
| 432 | u_int32_t flags); |
| 433 | extern int crypto_kregister(u_int32_t, int, u_int32_t); |
| 434 | extern int crypto_unregister(u_int32_t driverid, int alg); |
| 435 | extern int crypto_unregister_all(u_int32_t driverid); |
| 436 | extern int crypto_dispatch(struct cryptop *crp); |
| 437 | extern int crypto_kdispatch(struct cryptkop *); |
| 438 | #define CRYPTO_SYMQ 0x1 |
| 439 | #define CRYPTO_ASYMQ 0x2 |
| 440 | extern int crypto_unblock(u_int32_t, int); |
| 441 | extern void crypto_done(struct cryptop *crp); |
| 442 | extern void crypto_kdone(struct cryptkop *); |
| 443 | extern int crypto_getfeat(int *); |
| 444 | |
| 445 | extern void crypto_freereq(struct cryptop *crp); |
| 446 | extern struct cryptop *crypto_getreq(int num); |
| 447 | |
| 448 | extern int crypto_usercrypto; /* userland may do crypto requests */ |
| 449 | extern int crypto_userasymcrypto; /* userland may do asym crypto reqs */ |
| 450 | extern int crypto_devallowsoft; /* only use hardware crypto */ |
| 451 | |
| 452 | /* |
| 453 | * random number support, crypto_unregister_all will unregister |
| 454 | */ |
| 455 | extern int crypto_rregister(u_int32_t driverid, |
| 456 | int (*read_random)(void *arg, u_int32_t *buf, int len), void *arg); |
| 457 | extern int crypto_runregister_all(u_int32_t driverid); |
| 458 | |
| 459 | /* |
| 460 | * Crypto-related utility routines used mainly by drivers. |
| 461 | * |
| 462 | * XXX these don't really belong here; but for now they're |
| 463 | * kept apart from the rest of the system. |
| 464 | */ |
| 465 | struct uio; |
| 466 | extern void cuio_copydata(struct uio* uio, int off, int len, caddr_t cp); |
| 467 | extern void cuio_copyback(struct uio* uio, int off, int len, caddr_t cp); |
| 468 | extern struct iovec *cuio_getptr(struct uio *uio, int loc, int *off); |
| 469 | |
| 470 | extern void crypto_copyback(int flags, caddr_t buf, int off, int size, |
| 471 | caddr_t in); |
| 472 | extern void crypto_copydata(int flags, caddr_t buf, int off, int size, |
| 473 | caddr_t out); |
| 474 | extern int crypto_apply(int flags, caddr_t buf, int off, int len, |
| 475 | int (*f)(void *, void *, u_int), void *arg); |
| 476 | |
| 477 | #endif /* __KERNEL__ */ |
| 478 | #endif /* _CRYPTO_CRYPTO_H_ */ |
| 479 | |
