Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Scatterlist Cryptographic API. |
| 3 | * |
| 4 | * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> |
| 5 | * Copyright (c) 2002 David S. Miller (davem@redhat.com) |
Herbert Xu | 5cb1454 | 2005-11-05 16:58:14 +1100 | [diff] [blame] | 6 | * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * |
| 8 | * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no> |
| 9 | * and Nettle, by Niels Möller. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU General Public License as published by the Free |
| 13 | * Software Foundation; either version 2 of the License, or (at your option) |
| 14 | * any later version. |
| 15 | * |
| 16 | */ |
| 17 | #ifndef _LINUX_CRYPTO_H |
| 18 | #define _LINUX_CRYPTO_H |
| 19 | |
Herbert Xu | 6521f30 | 2006-08-06 20:28:44 +1000 | [diff] [blame] | 20 | #include <asm/atomic.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include <linux/module.h> |
| 22 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include <linux/list.h> |
Herbert Xu | 7991110 | 2006-08-21 21:03:52 +1000 | [diff] [blame] | 24 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include <linux/string.h> |
Herbert Xu | 7991110 | 2006-08-21 21:03:52 +1000 | [diff] [blame] | 26 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | |
| 28 | /* |
| 29 | * Algorithm masks and types. |
| 30 | */ |
Herbert Xu | 2825982 | 2006-08-06 21:23:26 +1000 | [diff] [blame] | 31 | #define CRYPTO_ALG_TYPE_MASK 0x0000000f |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #define CRYPTO_ALG_TYPE_CIPHER 0x00000001 |
| 33 | #define CRYPTO_ALG_TYPE_DIGEST 0x00000002 |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 34 | #define CRYPTO_ALG_TYPE_HASH 0x00000003 |
| 35 | #define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000004 |
| 36 | #define CRYPTO_ALG_TYPE_COMPRESS 0x00000005 |
| 37 | |
| 38 | #define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
Herbert Xu | 2825982 | 2006-08-06 21:23:26 +1000 | [diff] [blame] | 40 | #define CRYPTO_ALG_LARVAL 0x00000010 |
Herbert Xu | 6bfd480 | 2006-09-21 11:39:29 +1000 | [diff] [blame] | 41 | #define CRYPTO_ALG_DEAD 0x00000020 |
| 42 | #define CRYPTO_ALG_DYING 0x00000040 |
Herbert Xu | f3f632d | 2006-08-06 23:12:59 +1000 | [diff] [blame] | 43 | #define CRYPTO_ALG_ASYNC 0x00000080 |
Herbert Xu | 2825982 | 2006-08-06 21:23:26 +1000 | [diff] [blame] | 44 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | /* |
| 46 | * Transform masks and values (for crt_flags). |
| 47 | */ |
| 48 | #define CRYPTO_TFM_MODE_MASK 0x000000ff |
| 49 | #define CRYPTO_TFM_REQ_MASK 0x000fff00 |
| 50 | #define CRYPTO_TFM_RES_MASK 0xfff00000 |
| 51 | |
| 52 | #define CRYPTO_TFM_MODE_ECB 0x00000001 |
| 53 | #define CRYPTO_TFM_MODE_CBC 0x00000002 |
| 54 | #define CRYPTO_TFM_MODE_CFB 0x00000004 |
| 55 | #define CRYPTO_TFM_MODE_CTR 0x00000008 |
| 56 | |
| 57 | #define CRYPTO_TFM_REQ_WEAK_KEY 0x00000100 |
Herbert Xu | 64baf3c | 2005-09-01 17:43:05 -0700 | [diff] [blame] | 58 | #define CRYPTO_TFM_REQ_MAY_SLEEP 0x00000200 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | #define CRYPTO_TFM_RES_WEAK_KEY 0x00100000 |
| 60 | #define CRYPTO_TFM_RES_BAD_KEY_LEN 0x00200000 |
| 61 | #define CRYPTO_TFM_RES_BAD_KEY_SCHED 0x00400000 |
| 62 | #define CRYPTO_TFM_RES_BAD_BLOCK_LEN 0x00800000 |
| 63 | #define CRYPTO_TFM_RES_BAD_FLAGS 0x01000000 |
| 64 | |
| 65 | /* |
| 66 | * Miscellaneous stuff. |
| 67 | */ |
| 68 | #define CRYPTO_UNSPEC 0 |
| 69 | #define CRYPTO_MAX_ALG_NAME 64 |
| 70 | |
| 71 | #define CRYPTO_DIR_ENCRYPT 1 |
| 72 | #define CRYPTO_DIR_DECRYPT 0 |
| 73 | |
Herbert Xu | 7991110 | 2006-08-21 21:03:52 +1000 | [diff] [blame] | 74 | /* |
| 75 | * The macro CRYPTO_MINALIGN_ATTR (along with the void * type in the actual |
| 76 | * declaration) is used to ensure that the crypto_tfm context structure is |
| 77 | * aligned correctly for the given architecture so that there are no alignment |
| 78 | * faults for C data types. In particular, this is required on platforms such |
| 79 | * as arm where pointers are 32-bit aligned but there are data types such as |
| 80 | * u64 which require 64-bit alignment. |
| 81 | */ |
| 82 | #if defined(ARCH_KMALLOC_MINALIGN) |
| 83 | #define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN |
| 84 | #elif defined(ARCH_SLAB_MINALIGN) |
| 85 | #define CRYPTO_MINALIGN ARCH_SLAB_MINALIGN |
| 86 | #endif |
| 87 | |
| 88 | #ifdef CRYPTO_MINALIGN |
| 89 | #define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN))) |
| 90 | #else |
| 91 | #define CRYPTO_MINALIGN_ATTR |
| 92 | #endif |
| 93 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | struct scatterlist; |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 95 | struct crypto_blkcipher; |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 96 | struct crypto_hash; |
Herbert Xu | 4072518 | 2005-07-06 13:51:52 -0700 | [diff] [blame] | 97 | struct crypto_tfm; |
Herbert Xu | e853c3c | 2006-08-22 00:06:54 +1000 | [diff] [blame] | 98 | struct crypto_type; |
Herbert Xu | 4072518 | 2005-07-06 13:51:52 -0700 | [diff] [blame] | 99 | |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 100 | struct blkcipher_desc { |
| 101 | struct crypto_blkcipher *tfm; |
| 102 | void *info; |
| 103 | u32 flags; |
| 104 | }; |
| 105 | |
Herbert Xu | 4072518 | 2005-07-06 13:51:52 -0700 | [diff] [blame] | 106 | struct cipher_desc { |
| 107 | struct crypto_tfm *tfm; |
Herbert Xu | 6c2bb98 | 2006-05-16 22:09:29 +1000 | [diff] [blame] | 108 | void (*crfn)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); |
Herbert Xu | 4072518 | 2005-07-06 13:51:52 -0700 | [diff] [blame] | 109 | unsigned int (*prfn)(const struct cipher_desc *desc, u8 *dst, |
| 110 | const u8 *src, unsigned int nbytes); |
| 111 | void *info; |
| 112 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 114 | struct hash_desc { |
| 115 | struct crypto_hash *tfm; |
| 116 | u32 flags; |
| 117 | }; |
| 118 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | /* |
| 120 | * Algorithms: modular crypto algorithm implementations, managed |
| 121 | * via crypto_register_alg() and crypto_unregister_alg(). |
| 122 | */ |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 123 | struct blkcipher_alg { |
| 124 | int (*setkey)(struct crypto_tfm *tfm, const u8 *key, |
| 125 | unsigned int keylen); |
| 126 | int (*encrypt)(struct blkcipher_desc *desc, |
| 127 | struct scatterlist *dst, struct scatterlist *src, |
| 128 | unsigned int nbytes); |
| 129 | int (*decrypt)(struct blkcipher_desc *desc, |
| 130 | struct scatterlist *dst, struct scatterlist *src, |
| 131 | unsigned int nbytes); |
| 132 | |
| 133 | unsigned int min_keysize; |
| 134 | unsigned int max_keysize; |
| 135 | unsigned int ivsize; |
| 136 | }; |
| 137 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | struct cipher_alg { |
| 139 | unsigned int cia_min_keysize; |
| 140 | unsigned int cia_max_keysize; |
Herbert Xu | 6c2bb98 | 2006-05-16 22:09:29 +1000 | [diff] [blame] | 141 | int (*cia_setkey)(struct crypto_tfm *tfm, const u8 *key, |
Herbert Xu | 560c06a | 2006-08-13 14:16:39 +1000 | [diff] [blame] | 142 | unsigned int keylen); |
Herbert Xu | 6c2bb98 | 2006-05-16 22:09:29 +1000 | [diff] [blame] | 143 | void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); |
| 144 | void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); |
Herbert Xu | 4072518 | 2005-07-06 13:51:52 -0700 | [diff] [blame] | 145 | |
| 146 | unsigned int (*cia_encrypt_ecb)(const struct cipher_desc *desc, |
| 147 | u8 *dst, const u8 *src, |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 148 | unsigned int nbytes) __deprecated; |
Herbert Xu | 4072518 | 2005-07-06 13:51:52 -0700 | [diff] [blame] | 149 | unsigned int (*cia_decrypt_ecb)(const struct cipher_desc *desc, |
| 150 | u8 *dst, const u8 *src, |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 151 | unsigned int nbytes) __deprecated; |
Herbert Xu | 4072518 | 2005-07-06 13:51:52 -0700 | [diff] [blame] | 152 | unsigned int (*cia_encrypt_cbc)(const struct cipher_desc *desc, |
| 153 | u8 *dst, const u8 *src, |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 154 | unsigned int nbytes) __deprecated; |
Herbert Xu | 4072518 | 2005-07-06 13:51:52 -0700 | [diff] [blame] | 155 | unsigned int (*cia_decrypt_cbc)(const struct cipher_desc *desc, |
| 156 | u8 *dst, const u8 *src, |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 157 | unsigned int nbytes) __deprecated; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | }; |
| 159 | |
| 160 | struct digest_alg { |
| 161 | unsigned int dia_digestsize; |
Herbert Xu | 6c2bb98 | 2006-05-16 22:09:29 +1000 | [diff] [blame] | 162 | void (*dia_init)(struct crypto_tfm *tfm); |
| 163 | void (*dia_update)(struct crypto_tfm *tfm, const u8 *data, |
| 164 | unsigned int len); |
| 165 | void (*dia_final)(struct crypto_tfm *tfm, u8 *out); |
| 166 | int (*dia_setkey)(struct crypto_tfm *tfm, const u8 *key, |
Herbert Xu | 560c06a | 2006-08-13 14:16:39 +1000 | [diff] [blame] | 167 | unsigned int keylen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | }; |
| 169 | |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 170 | struct hash_alg { |
| 171 | int (*init)(struct hash_desc *desc); |
| 172 | int (*update)(struct hash_desc *desc, struct scatterlist *sg, |
| 173 | unsigned int nbytes); |
| 174 | int (*final)(struct hash_desc *desc, u8 *out); |
| 175 | int (*digest)(struct hash_desc *desc, struct scatterlist *sg, |
| 176 | unsigned int nbytes, u8 *out); |
| 177 | int (*setkey)(struct crypto_hash *tfm, const u8 *key, |
| 178 | unsigned int keylen); |
| 179 | |
| 180 | unsigned int digestsize; |
| 181 | }; |
| 182 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | struct compress_alg { |
Herbert Xu | 6c2bb98 | 2006-05-16 22:09:29 +1000 | [diff] [blame] | 184 | int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src, |
| 185 | unsigned int slen, u8 *dst, unsigned int *dlen); |
| 186 | int (*coa_decompress)(struct crypto_tfm *tfm, const u8 *src, |
| 187 | unsigned int slen, u8 *dst, unsigned int *dlen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | }; |
| 189 | |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 190 | #define cra_blkcipher cra_u.blkcipher |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | #define cra_cipher cra_u.cipher |
| 192 | #define cra_digest cra_u.digest |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 193 | #define cra_hash cra_u.hash |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | #define cra_compress cra_u.compress |
| 195 | |
| 196 | struct crypto_alg { |
| 197 | struct list_head cra_list; |
Herbert Xu | 6bfd480 | 2006-09-21 11:39:29 +1000 | [diff] [blame] | 198 | struct list_head cra_users; |
| 199 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | u32 cra_flags; |
| 201 | unsigned int cra_blocksize; |
| 202 | unsigned int cra_ctxsize; |
Herbert Xu | 9547737 | 2005-07-06 13:52:09 -0700 | [diff] [blame] | 203 | unsigned int cra_alignmask; |
Herbert Xu | 5cb1454 | 2005-11-05 16:58:14 +1100 | [diff] [blame] | 204 | |
| 205 | int cra_priority; |
Herbert Xu | 6521f30 | 2006-08-06 20:28:44 +1000 | [diff] [blame] | 206 | atomic_t cra_refcnt; |
Herbert Xu | 5cb1454 | 2005-11-05 16:58:14 +1100 | [diff] [blame] | 207 | |
Herbert Xu | d913ea0 | 2006-05-21 08:45:26 +1000 | [diff] [blame] | 208 | char cra_name[CRYPTO_MAX_ALG_NAME]; |
| 209 | char cra_driver_name[CRYPTO_MAX_ALG_NAME]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | |
Herbert Xu | e853c3c | 2006-08-22 00:06:54 +1000 | [diff] [blame] | 211 | const struct crypto_type *cra_type; |
| 212 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | union { |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 214 | struct blkcipher_alg blkcipher; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | struct cipher_alg cipher; |
| 216 | struct digest_alg digest; |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 217 | struct hash_alg hash; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | struct compress_alg compress; |
| 219 | } cra_u; |
Herbert Xu | c7fc059 | 2006-05-24 13:02:26 +1000 | [diff] [blame] | 220 | |
| 221 | int (*cra_init)(struct crypto_tfm *tfm); |
| 222 | void (*cra_exit)(struct crypto_tfm *tfm); |
Herbert Xu | 6521f30 | 2006-08-06 20:28:44 +1000 | [diff] [blame] | 223 | void (*cra_destroy)(struct crypto_alg *alg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | |
| 225 | struct module *cra_module; |
| 226 | }; |
| 227 | |
| 228 | /* |
| 229 | * Algorithm registration interface. |
| 230 | */ |
| 231 | int crypto_register_alg(struct crypto_alg *alg); |
| 232 | int crypto_unregister_alg(struct crypto_alg *alg); |
| 233 | |
| 234 | /* |
| 235 | * Algorithm query interface. |
| 236 | */ |
| 237 | #ifdef CONFIG_CRYPTO |
| 238 | int crypto_alg_available(const char *name, u32 flags); |
Herbert Xu | fce32d7 | 2006-08-26 17:35:45 +1000 | [diff] [blame^] | 239 | int crypto_has_alg(const char *name, u32 type, u32 mask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | #else |
| 241 | static inline int crypto_alg_available(const char *name, u32 flags) |
| 242 | { |
| 243 | return 0; |
| 244 | } |
Herbert Xu | fce32d7 | 2006-08-26 17:35:45 +1000 | [diff] [blame^] | 245 | |
| 246 | static inline int crypto_has_alg(const char *name, u32 type, u32 mask) |
| 247 | { |
| 248 | return 0; |
| 249 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | #endif |
| 251 | |
| 252 | /* |
| 253 | * Transforms: user-instantiated objects which encapsulate algorithms |
Herbert Xu | 6d7d684 | 2006-07-30 11:53:01 +1000 | [diff] [blame] | 254 | * and core processing logic. Managed via crypto_alloc_*() and |
| 255 | * crypto_free_*(), as well as the various helpers below. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 258 | struct blkcipher_tfm { |
| 259 | void *iv; |
| 260 | int (*setkey)(struct crypto_tfm *tfm, const u8 *key, |
| 261 | unsigned int keylen); |
| 262 | int (*encrypt)(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 263 | struct scatterlist *src, unsigned int nbytes); |
| 264 | int (*decrypt)(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 265 | struct scatterlist *src, unsigned int nbytes); |
| 266 | }; |
| 267 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | struct cipher_tfm { |
| 269 | void *cit_iv; |
| 270 | unsigned int cit_ivsize; |
| 271 | u32 cit_mode; |
| 272 | int (*cit_setkey)(struct crypto_tfm *tfm, |
| 273 | const u8 *key, unsigned int keylen); |
| 274 | int (*cit_encrypt)(struct crypto_tfm *tfm, |
| 275 | struct scatterlist *dst, |
| 276 | struct scatterlist *src, |
| 277 | unsigned int nbytes); |
| 278 | int (*cit_encrypt_iv)(struct crypto_tfm *tfm, |
| 279 | struct scatterlist *dst, |
| 280 | struct scatterlist *src, |
| 281 | unsigned int nbytes, u8 *iv); |
| 282 | int (*cit_decrypt)(struct crypto_tfm *tfm, |
| 283 | struct scatterlist *dst, |
| 284 | struct scatterlist *src, |
| 285 | unsigned int nbytes); |
| 286 | int (*cit_decrypt_iv)(struct crypto_tfm *tfm, |
| 287 | struct scatterlist *dst, |
| 288 | struct scatterlist *src, |
| 289 | unsigned int nbytes, u8 *iv); |
| 290 | void (*cit_xor_block)(u8 *dst, const u8 *src); |
Herbert Xu | f28776a | 2006-08-13 20:58:18 +1000 | [diff] [blame] | 291 | void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); |
| 292 | void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | }; |
| 294 | |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 295 | struct hash_tfm { |
| 296 | int (*init)(struct hash_desc *desc); |
| 297 | int (*update)(struct hash_desc *desc, |
| 298 | struct scatterlist *sg, unsigned int nsg); |
| 299 | int (*final)(struct hash_desc *desc, u8 *out); |
| 300 | int (*digest)(struct hash_desc *desc, struct scatterlist *sg, |
| 301 | unsigned int nsg, u8 *out); |
| 302 | int (*setkey)(struct crypto_hash *tfm, const u8 *key, |
| 303 | unsigned int keylen); |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 304 | unsigned int digestsize; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | }; |
| 306 | |
| 307 | struct compress_tfm { |
| 308 | int (*cot_compress)(struct crypto_tfm *tfm, |
| 309 | const u8 *src, unsigned int slen, |
| 310 | u8 *dst, unsigned int *dlen); |
| 311 | int (*cot_decompress)(struct crypto_tfm *tfm, |
| 312 | const u8 *src, unsigned int slen, |
| 313 | u8 *dst, unsigned int *dlen); |
| 314 | }; |
| 315 | |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 316 | #define crt_blkcipher crt_u.blkcipher |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | #define crt_cipher crt_u.cipher |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 318 | #define crt_hash crt_u.hash |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | #define crt_compress crt_u.compress |
| 320 | |
| 321 | struct crypto_tfm { |
| 322 | |
| 323 | u32 crt_flags; |
| 324 | |
| 325 | union { |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 326 | struct blkcipher_tfm blkcipher; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | struct cipher_tfm cipher; |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 328 | struct hash_tfm hash; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | struct compress_tfm compress; |
| 330 | } crt_u; |
| 331 | |
| 332 | struct crypto_alg *__crt_alg; |
Herbert Xu | f10b789 | 2006-01-25 22:34:01 +1100 | [diff] [blame] | 333 | |
Herbert Xu | 7991110 | 2006-08-21 21:03:52 +1000 | [diff] [blame] | 334 | void *__crt_ctx[] CRYPTO_MINALIGN_ATTR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | }; |
| 336 | |
Herbert Xu | f28776a | 2006-08-13 20:58:18 +1000 | [diff] [blame] | 337 | #define crypto_cipher crypto_tfm |
Herbert Xu | fce32d7 | 2006-08-26 17:35:45 +1000 | [diff] [blame^] | 338 | #define crypto_comp crypto_tfm |
Herbert Xu | f28776a | 2006-08-13 20:58:18 +1000 | [diff] [blame] | 339 | |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 340 | struct crypto_blkcipher { |
| 341 | struct crypto_tfm base; |
| 342 | }; |
| 343 | |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 344 | struct crypto_hash { |
| 345 | struct crypto_tfm base; |
| 346 | }; |
| 347 | |
Herbert Xu | 2b8c19d | 2006-09-21 11:31:44 +1000 | [diff] [blame] | 348 | enum { |
| 349 | CRYPTOA_UNSPEC, |
| 350 | CRYPTOA_ALG, |
| 351 | }; |
| 352 | |
| 353 | struct crypto_attr_alg { |
| 354 | char name[CRYPTO_MAX_ALG_NAME]; |
| 355 | }; |
| 356 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | /* |
| 358 | * Transform user interface. |
| 359 | */ |
| 360 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | struct crypto_tfm *crypto_alloc_tfm(const char *alg_name, u32 tfm_flags); |
Herbert Xu | 6d7d684 | 2006-07-30 11:53:01 +1000 | [diff] [blame] | 362 | struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | void crypto_free_tfm(struct crypto_tfm *tfm); |
| 364 | |
| 365 | /* |
| 366 | * Transform helpers which query the underlying algorithm. |
| 367 | */ |
| 368 | static inline const char *crypto_tfm_alg_name(struct crypto_tfm *tfm) |
| 369 | { |
| 370 | return tfm->__crt_alg->cra_name; |
| 371 | } |
| 372 | |
Michal Ludvig | b14cdd6 | 2006-07-09 09:02:24 +1000 | [diff] [blame] | 373 | static inline const char *crypto_tfm_alg_driver_name(struct crypto_tfm *tfm) |
| 374 | { |
| 375 | return tfm->__crt_alg->cra_driver_name; |
| 376 | } |
| 377 | |
| 378 | static inline int crypto_tfm_alg_priority(struct crypto_tfm *tfm) |
| 379 | { |
| 380 | return tfm->__crt_alg->cra_priority; |
| 381 | } |
| 382 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | static inline const char *crypto_tfm_alg_modname(struct crypto_tfm *tfm) |
| 384 | { |
| 385 | return module_name(tfm->__crt_alg->cra_module); |
| 386 | } |
| 387 | |
| 388 | static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm) |
| 389 | { |
| 390 | return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK; |
| 391 | } |
| 392 | |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 393 | static unsigned int crypto_tfm_alg_min_keysize(struct crypto_tfm *tfm) |
| 394 | __deprecated; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | static inline unsigned int crypto_tfm_alg_min_keysize(struct crypto_tfm *tfm) |
| 396 | { |
| 397 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); |
| 398 | return tfm->__crt_alg->cra_cipher.cia_min_keysize; |
| 399 | } |
| 400 | |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 401 | static unsigned int crypto_tfm_alg_max_keysize(struct crypto_tfm *tfm) |
| 402 | __deprecated; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | static inline unsigned int crypto_tfm_alg_max_keysize(struct crypto_tfm *tfm) |
| 404 | { |
| 405 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); |
| 406 | return tfm->__crt_alg->cra_cipher.cia_max_keysize; |
| 407 | } |
| 408 | |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 409 | static unsigned int crypto_tfm_alg_ivsize(struct crypto_tfm *tfm) __deprecated; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | static inline unsigned int crypto_tfm_alg_ivsize(struct crypto_tfm *tfm) |
| 411 | { |
| 412 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); |
| 413 | return tfm->crt_cipher.cit_ivsize; |
| 414 | } |
| 415 | |
| 416 | static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm *tfm) |
| 417 | { |
| 418 | return tfm->__crt_alg->cra_blocksize; |
| 419 | } |
| 420 | |
| 421 | static inline unsigned int crypto_tfm_alg_digestsize(struct crypto_tfm *tfm) |
| 422 | { |
| 423 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); |
| 424 | return tfm->__crt_alg->cra_digest.dia_digestsize; |
| 425 | } |
| 426 | |
Herbert Xu | fbdae9f | 2005-07-06 13:53:29 -0700 | [diff] [blame] | 427 | static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm) |
| 428 | { |
| 429 | return tfm->__crt_alg->cra_alignmask; |
| 430 | } |
| 431 | |
Herbert Xu | f28776a | 2006-08-13 20:58:18 +1000 | [diff] [blame] | 432 | static inline u32 crypto_tfm_get_flags(struct crypto_tfm *tfm) |
| 433 | { |
| 434 | return tfm->crt_flags; |
| 435 | } |
| 436 | |
| 437 | static inline void crypto_tfm_set_flags(struct crypto_tfm *tfm, u32 flags) |
| 438 | { |
| 439 | tfm->crt_flags |= flags; |
| 440 | } |
| 441 | |
| 442 | static inline void crypto_tfm_clear_flags(struct crypto_tfm *tfm, u32 flags) |
| 443 | { |
| 444 | tfm->crt_flags &= ~flags; |
| 445 | } |
| 446 | |
Herbert Xu | 4072518 | 2005-07-06 13:51:52 -0700 | [diff] [blame] | 447 | static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm) |
| 448 | { |
Herbert Xu | f10b789 | 2006-01-25 22:34:01 +1100 | [diff] [blame] | 449 | return tfm->__crt_ctx; |
| 450 | } |
| 451 | |
| 452 | static inline unsigned int crypto_tfm_ctx_alignment(void) |
| 453 | { |
| 454 | struct crypto_tfm *tfm; |
| 455 | return __alignof__(tfm->__crt_ctx); |
Herbert Xu | 4072518 | 2005-07-06 13:51:52 -0700 | [diff] [blame] | 456 | } |
| 457 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | /* |
| 459 | * API wrappers. |
| 460 | */ |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 461 | static inline struct crypto_blkcipher *__crypto_blkcipher_cast( |
| 462 | struct crypto_tfm *tfm) |
| 463 | { |
| 464 | return (struct crypto_blkcipher *)tfm; |
| 465 | } |
| 466 | |
| 467 | static inline struct crypto_blkcipher *crypto_blkcipher_cast( |
| 468 | struct crypto_tfm *tfm) |
| 469 | { |
| 470 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_BLKCIPHER); |
| 471 | return __crypto_blkcipher_cast(tfm); |
| 472 | } |
| 473 | |
| 474 | static inline struct crypto_blkcipher *crypto_alloc_blkcipher( |
| 475 | const char *alg_name, u32 type, u32 mask) |
| 476 | { |
| 477 | type &= ~CRYPTO_ALG_TYPE_MASK; |
| 478 | type |= CRYPTO_ALG_TYPE_BLKCIPHER; |
| 479 | mask |= CRYPTO_ALG_TYPE_MASK; |
| 480 | |
| 481 | return __crypto_blkcipher_cast(crypto_alloc_base(alg_name, type, mask)); |
| 482 | } |
| 483 | |
| 484 | static inline struct crypto_tfm *crypto_blkcipher_tfm( |
| 485 | struct crypto_blkcipher *tfm) |
| 486 | { |
| 487 | return &tfm->base; |
| 488 | } |
| 489 | |
| 490 | static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm) |
| 491 | { |
| 492 | crypto_free_tfm(crypto_blkcipher_tfm(tfm)); |
| 493 | } |
| 494 | |
Herbert Xu | fce32d7 | 2006-08-26 17:35:45 +1000 | [diff] [blame^] | 495 | static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask) |
| 496 | { |
| 497 | type &= ~CRYPTO_ALG_TYPE_MASK; |
| 498 | type |= CRYPTO_ALG_TYPE_BLKCIPHER; |
| 499 | mask |= CRYPTO_ALG_TYPE_MASK; |
| 500 | |
| 501 | return crypto_has_alg(alg_name, type, mask); |
| 502 | } |
| 503 | |
Herbert Xu | 5cde0af | 2006-08-22 00:07:53 +1000 | [diff] [blame] | 504 | static inline const char *crypto_blkcipher_name(struct crypto_blkcipher *tfm) |
| 505 | { |
| 506 | return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm)); |
| 507 | } |
| 508 | |
| 509 | static inline struct blkcipher_tfm *crypto_blkcipher_crt( |
| 510 | struct crypto_blkcipher *tfm) |
| 511 | { |
| 512 | return &crypto_blkcipher_tfm(tfm)->crt_blkcipher; |
| 513 | } |
| 514 | |
| 515 | static inline struct blkcipher_alg *crypto_blkcipher_alg( |
| 516 | struct crypto_blkcipher *tfm) |
| 517 | { |
| 518 | return &crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher; |
| 519 | } |
| 520 | |
| 521 | static inline unsigned int crypto_blkcipher_ivsize(struct crypto_blkcipher *tfm) |
| 522 | { |
| 523 | return crypto_blkcipher_alg(tfm)->ivsize; |
| 524 | } |
| 525 | |
| 526 | static inline unsigned int crypto_blkcipher_blocksize( |
| 527 | struct crypto_blkcipher *tfm) |
| 528 | { |
| 529 | return crypto_tfm_alg_blocksize(crypto_blkcipher_tfm(tfm)); |
| 530 | } |
| 531 | |
| 532 | static inline unsigned int crypto_blkcipher_alignmask( |
| 533 | struct crypto_blkcipher *tfm) |
| 534 | { |
| 535 | return crypto_tfm_alg_alignmask(crypto_blkcipher_tfm(tfm)); |
| 536 | } |
| 537 | |
| 538 | static inline u32 crypto_blkcipher_get_flags(struct crypto_blkcipher *tfm) |
| 539 | { |
| 540 | return crypto_tfm_get_flags(crypto_blkcipher_tfm(tfm)); |
| 541 | } |
| 542 | |
| 543 | static inline void crypto_blkcipher_set_flags(struct crypto_blkcipher *tfm, |
| 544 | u32 flags) |
| 545 | { |
| 546 | crypto_tfm_set_flags(crypto_blkcipher_tfm(tfm), flags); |
| 547 | } |
| 548 | |
| 549 | static inline void crypto_blkcipher_clear_flags(struct crypto_blkcipher *tfm, |
| 550 | u32 flags) |
| 551 | { |
| 552 | crypto_tfm_clear_flags(crypto_blkcipher_tfm(tfm), flags); |
| 553 | } |
| 554 | |
| 555 | static inline int crypto_blkcipher_setkey(struct crypto_blkcipher *tfm, |
| 556 | const u8 *key, unsigned int keylen) |
| 557 | { |
| 558 | return crypto_blkcipher_crt(tfm)->setkey(crypto_blkcipher_tfm(tfm), |
| 559 | key, keylen); |
| 560 | } |
| 561 | |
| 562 | static inline int crypto_blkcipher_encrypt(struct blkcipher_desc *desc, |
| 563 | struct scatterlist *dst, |
| 564 | struct scatterlist *src, |
| 565 | unsigned int nbytes) |
| 566 | { |
| 567 | desc->info = crypto_blkcipher_crt(desc->tfm)->iv; |
| 568 | return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes); |
| 569 | } |
| 570 | |
| 571 | static inline int crypto_blkcipher_encrypt_iv(struct blkcipher_desc *desc, |
| 572 | struct scatterlist *dst, |
| 573 | struct scatterlist *src, |
| 574 | unsigned int nbytes) |
| 575 | { |
| 576 | return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes); |
| 577 | } |
| 578 | |
| 579 | static inline int crypto_blkcipher_decrypt(struct blkcipher_desc *desc, |
| 580 | struct scatterlist *dst, |
| 581 | struct scatterlist *src, |
| 582 | unsigned int nbytes) |
| 583 | { |
| 584 | desc->info = crypto_blkcipher_crt(desc->tfm)->iv; |
| 585 | return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes); |
| 586 | } |
| 587 | |
| 588 | static inline int crypto_blkcipher_decrypt_iv(struct blkcipher_desc *desc, |
| 589 | struct scatterlist *dst, |
| 590 | struct scatterlist *src, |
| 591 | unsigned int nbytes) |
| 592 | { |
| 593 | return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes); |
| 594 | } |
| 595 | |
| 596 | static inline void crypto_blkcipher_set_iv(struct crypto_blkcipher *tfm, |
| 597 | const u8 *src, unsigned int len) |
| 598 | { |
| 599 | memcpy(crypto_blkcipher_crt(tfm)->iv, src, len); |
| 600 | } |
| 601 | |
| 602 | static inline void crypto_blkcipher_get_iv(struct crypto_blkcipher *tfm, |
| 603 | u8 *dst, unsigned int len) |
| 604 | { |
| 605 | memcpy(dst, crypto_blkcipher_crt(tfm)->iv, len); |
| 606 | } |
| 607 | |
Herbert Xu | f28776a | 2006-08-13 20:58:18 +1000 | [diff] [blame] | 608 | static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm) |
| 609 | { |
| 610 | return (struct crypto_cipher *)tfm; |
| 611 | } |
| 612 | |
| 613 | static inline struct crypto_cipher *crypto_cipher_cast(struct crypto_tfm *tfm) |
| 614 | { |
| 615 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); |
| 616 | return __crypto_cipher_cast(tfm); |
| 617 | } |
| 618 | |
| 619 | static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name, |
| 620 | u32 type, u32 mask) |
| 621 | { |
| 622 | type &= ~CRYPTO_ALG_TYPE_MASK; |
| 623 | type |= CRYPTO_ALG_TYPE_CIPHER; |
| 624 | mask |= CRYPTO_ALG_TYPE_MASK; |
| 625 | |
| 626 | return __crypto_cipher_cast(crypto_alloc_base(alg_name, type, mask)); |
| 627 | } |
| 628 | |
| 629 | static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm) |
| 630 | { |
| 631 | return tfm; |
| 632 | } |
| 633 | |
| 634 | static inline void crypto_free_cipher(struct crypto_cipher *tfm) |
| 635 | { |
| 636 | crypto_free_tfm(crypto_cipher_tfm(tfm)); |
| 637 | } |
| 638 | |
Herbert Xu | fce32d7 | 2006-08-26 17:35:45 +1000 | [diff] [blame^] | 639 | static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask) |
| 640 | { |
| 641 | type &= ~CRYPTO_ALG_TYPE_MASK; |
| 642 | type |= CRYPTO_ALG_TYPE_CIPHER; |
| 643 | mask |= CRYPTO_ALG_TYPE_MASK; |
| 644 | |
| 645 | return crypto_has_alg(alg_name, type, mask); |
| 646 | } |
| 647 | |
Herbert Xu | f28776a | 2006-08-13 20:58:18 +1000 | [diff] [blame] | 648 | static inline struct cipher_tfm *crypto_cipher_crt(struct crypto_cipher *tfm) |
| 649 | { |
| 650 | return &crypto_cipher_tfm(tfm)->crt_cipher; |
| 651 | } |
| 652 | |
| 653 | static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm) |
| 654 | { |
| 655 | return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm)); |
| 656 | } |
| 657 | |
| 658 | static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher *tfm) |
| 659 | { |
| 660 | return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm)); |
| 661 | } |
| 662 | |
| 663 | static inline u32 crypto_cipher_get_flags(struct crypto_cipher *tfm) |
| 664 | { |
| 665 | return crypto_tfm_get_flags(crypto_cipher_tfm(tfm)); |
| 666 | } |
| 667 | |
| 668 | static inline void crypto_cipher_set_flags(struct crypto_cipher *tfm, |
| 669 | u32 flags) |
| 670 | { |
| 671 | crypto_tfm_set_flags(crypto_cipher_tfm(tfm), flags); |
| 672 | } |
| 673 | |
| 674 | static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm, |
| 675 | u32 flags) |
| 676 | { |
| 677 | crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags); |
| 678 | } |
| 679 | |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 680 | static inline int crypto_cipher_setkey(struct crypto_cipher *tfm, |
| 681 | const u8 *key, unsigned int keylen) |
| 682 | { |
| 683 | return crypto_cipher_crt(tfm)->cit_setkey(crypto_cipher_tfm(tfm), |
| 684 | key, keylen); |
| 685 | } |
| 686 | |
Herbert Xu | f28776a | 2006-08-13 20:58:18 +1000 | [diff] [blame] | 687 | static inline void crypto_cipher_encrypt_one(struct crypto_cipher *tfm, |
| 688 | u8 *dst, const u8 *src) |
| 689 | { |
| 690 | crypto_cipher_crt(tfm)->cit_encrypt_one(crypto_cipher_tfm(tfm), |
| 691 | dst, src); |
| 692 | } |
| 693 | |
| 694 | static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm, |
| 695 | u8 *dst, const u8 *src) |
| 696 | { |
| 697 | crypto_cipher_crt(tfm)->cit_decrypt_one(crypto_cipher_tfm(tfm), |
| 698 | dst, src); |
| 699 | } |
| 700 | |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 701 | void crypto_digest_init(struct crypto_tfm *tfm); |
| 702 | void crypto_digest_update(struct crypto_tfm *tfm, |
| 703 | struct scatterlist *sg, unsigned int nsg); |
| 704 | void crypto_digest_final(struct crypto_tfm *tfm, u8 *out); |
| 705 | void crypto_digest_digest(struct crypto_tfm *tfm, |
| 706 | struct scatterlist *sg, unsigned int nsg, u8 *out); |
| 707 | |
| 708 | static inline struct crypto_hash *__crypto_hash_cast(struct crypto_tfm *tfm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | { |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 710 | return (struct crypto_hash *)tfm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | } |
| 712 | |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 713 | static inline struct crypto_hash *crypto_hash_cast(struct crypto_tfm *tfm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | { |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 715 | BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_HASH) & |
| 716 | CRYPTO_ALG_TYPE_HASH_MASK); |
| 717 | return __crypto_hash_cast(tfm); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | } |
| 719 | |
| 720 | static inline int crypto_digest_setkey(struct crypto_tfm *tfm, |
| 721 | const u8 *key, unsigned int keylen) |
| 722 | { |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 723 | return tfm->crt_hash.setkey(crypto_hash_cast(tfm), key, keylen); |
| 724 | } |
| 725 | |
| 726 | static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name, |
| 727 | u32 type, u32 mask) |
| 728 | { |
| 729 | type &= ~CRYPTO_ALG_TYPE_MASK; |
| 730 | type |= CRYPTO_ALG_TYPE_HASH; |
| 731 | mask |= CRYPTO_ALG_TYPE_HASH_MASK; |
| 732 | |
| 733 | return __crypto_hash_cast(crypto_alloc_base(alg_name, type, mask)); |
| 734 | } |
| 735 | |
| 736 | static inline struct crypto_tfm *crypto_hash_tfm(struct crypto_hash *tfm) |
| 737 | { |
| 738 | return &tfm->base; |
| 739 | } |
| 740 | |
| 741 | static inline void crypto_free_hash(struct crypto_hash *tfm) |
| 742 | { |
| 743 | crypto_free_tfm(crypto_hash_tfm(tfm)); |
| 744 | } |
| 745 | |
Herbert Xu | fce32d7 | 2006-08-26 17:35:45 +1000 | [diff] [blame^] | 746 | static inline int crypto_has_hash(const char *alg_name, u32 type, u32 mask) |
| 747 | { |
| 748 | type &= ~CRYPTO_ALG_TYPE_MASK; |
| 749 | type |= CRYPTO_ALG_TYPE_HASH; |
| 750 | mask |= CRYPTO_ALG_TYPE_HASH_MASK; |
| 751 | |
| 752 | return crypto_has_alg(alg_name, type, mask); |
| 753 | } |
| 754 | |
Herbert Xu | 055bcee | 2006-08-19 22:24:23 +1000 | [diff] [blame] | 755 | static inline struct hash_tfm *crypto_hash_crt(struct crypto_hash *tfm) |
| 756 | { |
| 757 | return &crypto_hash_tfm(tfm)->crt_hash; |
| 758 | } |
| 759 | |
| 760 | static inline unsigned int crypto_hash_blocksize(struct crypto_hash *tfm) |
| 761 | { |
| 762 | return crypto_tfm_alg_blocksize(crypto_hash_tfm(tfm)); |
| 763 | } |
| 764 | |
| 765 | static inline unsigned int crypto_hash_alignmask(struct crypto_hash *tfm) |
| 766 | { |
| 767 | return crypto_tfm_alg_alignmask(crypto_hash_tfm(tfm)); |
| 768 | } |
| 769 | |
| 770 | static inline unsigned int crypto_hash_digestsize(struct crypto_hash *tfm) |
| 771 | { |
| 772 | return crypto_hash_crt(tfm)->digestsize; |
| 773 | } |
| 774 | |
| 775 | static inline u32 crypto_hash_get_flags(struct crypto_hash *tfm) |
| 776 | { |
| 777 | return crypto_tfm_get_flags(crypto_hash_tfm(tfm)); |
| 778 | } |
| 779 | |
| 780 | static inline void crypto_hash_set_flags(struct crypto_hash *tfm, u32 flags) |
| 781 | { |
| 782 | crypto_tfm_set_flags(crypto_hash_tfm(tfm), flags); |
| 783 | } |
| 784 | |
| 785 | static inline void crypto_hash_clear_flags(struct crypto_hash *tfm, u32 flags) |
| 786 | { |
| 787 | crypto_tfm_clear_flags(crypto_hash_tfm(tfm), flags); |
| 788 | } |
| 789 | |
| 790 | static inline int crypto_hash_init(struct hash_desc *desc) |
| 791 | { |
| 792 | return crypto_hash_crt(desc->tfm)->init(desc); |
| 793 | } |
| 794 | |
| 795 | static inline int crypto_hash_update(struct hash_desc *desc, |
| 796 | struct scatterlist *sg, |
| 797 | unsigned int nbytes) |
| 798 | { |
| 799 | return crypto_hash_crt(desc->tfm)->update(desc, sg, nbytes); |
| 800 | } |
| 801 | |
| 802 | static inline int crypto_hash_final(struct hash_desc *desc, u8 *out) |
| 803 | { |
| 804 | return crypto_hash_crt(desc->tfm)->final(desc, out); |
| 805 | } |
| 806 | |
| 807 | static inline int crypto_hash_digest(struct hash_desc *desc, |
| 808 | struct scatterlist *sg, |
| 809 | unsigned int nbytes, u8 *out) |
| 810 | { |
| 811 | return crypto_hash_crt(desc->tfm)->digest(desc, sg, nbytes, out); |
| 812 | } |
| 813 | |
| 814 | static inline int crypto_hash_setkey(struct crypto_hash *hash, |
| 815 | const u8 *key, unsigned int keylen) |
| 816 | { |
| 817 | return crypto_hash_crt(hash)->setkey(hash, key, keylen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | } |
| 819 | |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 820 | static int crypto_cipher_encrypt(struct crypto_tfm *tfm, |
| 821 | struct scatterlist *dst, |
| 822 | struct scatterlist *src, |
| 823 | unsigned int nbytes) __deprecated; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 824 | static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm, |
| 825 | struct scatterlist *dst, |
| 826 | struct scatterlist *src, |
| 827 | unsigned int nbytes) |
| 828 | { |
| 829 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); |
| 830 | return tfm->crt_cipher.cit_encrypt(tfm, dst, src, nbytes); |
| 831 | } |
| 832 | |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 833 | static int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm, |
| 834 | struct scatterlist *dst, |
| 835 | struct scatterlist *src, |
| 836 | unsigned int nbytes, u8 *iv) __deprecated; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | static inline int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm, |
| 838 | struct scatterlist *dst, |
| 839 | struct scatterlist *src, |
| 840 | unsigned int nbytes, u8 *iv) |
| 841 | { |
| 842 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | return tfm->crt_cipher.cit_encrypt_iv(tfm, dst, src, nbytes, iv); |
| 844 | } |
| 845 | |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 846 | static int crypto_cipher_decrypt(struct crypto_tfm *tfm, |
| 847 | struct scatterlist *dst, |
| 848 | struct scatterlist *src, |
| 849 | unsigned int nbytes) __deprecated; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm, |
| 851 | struct scatterlist *dst, |
| 852 | struct scatterlist *src, |
| 853 | unsigned int nbytes) |
| 854 | { |
| 855 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); |
| 856 | return tfm->crt_cipher.cit_decrypt(tfm, dst, src, nbytes); |
| 857 | } |
| 858 | |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 859 | static int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm, |
| 860 | struct scatterlist *dst, |
| 861 | struct scatterlist *src, |
| 862 | unsigned int nbytes, u8 *iv) __deprecated; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | static inline int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm, |
| 864 | struct scatterlist *dst, |
| 865 | struct scatterlist *src, |
| 866 | unsigned int nbytes, u8 *iv) |
| 867 | { |
| 868 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | return tfm->crt_cipher.cit_decrypt_iv(tfm, dst, src, nbytes, iv); |
| 870 | } |
| 871 | |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 872 | static void crypto_cipher_set_iv(struct crypto_tfm *tfm, |
| 873 | const u8 *src, unsigned int len) __deprecated; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | static inline void crypto_cipher_set_iv(struct crypto_tfm *tfm, |
| 875 | const u8 *src, unsigned int len) |
| 876 | { |
| 877 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); |
| 878 | memcpy(tfm->crt_cipher.cit_iv, src, len); |
| 879 | } |
| 880 | |
Herbert Xu | 7226bc87 | 2006-08-21 21:40:49 +1000 | [diff] [blame] | 881 | static void crypto_cipher_get_iv(struct crypto_tfm *tfm, |
| 882 | u8 *dst, unsigned int len) __deprecated; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | static inline void crypto_cipher_get_iv(struct crypto_tfm *tfm, |
| 884 | u8 *dst, unsigned int len) |
| 885 | { |
| 886 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); |
| 887 | memcpy(dst, tfm->crt_cipher.cit_iv, len); |
| 888 | } |
| 889 | |
Herbert Xu | fce32d7 | 2006-08-26 17:35:45 +1000 | [diff] [blame^] | 890 | static inline struct crypto_comp *__crypto_comp_cast(struct crypto_tfm *tfm) |
| 891 | { |
| 892 | return (struct crypto_comp *)tfm; |
| 893 | } |
| 894 | |
| 895 | static inline struct crypto_comp *crypto_comp_cast(struct crypto_tfm *tfm) |
| 896 | { |
| 897 | BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_COMPRESS) & |
| 898 | CRYPTO_ALG_TYPE_MASK); |
| 899 | return __crypto_comp_cast(tfm); |
| 900 | } |
| 901 | |
| 902 | static inline struct crypto_comp *crypto_alloc_comp(const char *alg_name, |
| 903 | u32 type, u32 mask) |
| 904 | { |
| 905 | type &= ~CRYPTO_ALG_TYPE_MASK; |
| 906 | type |= CRYPTO_ALG_TYPE_COMPRESS; |
| 907 | mask |= CRYPTO_ALG_TYPE_MASK; |
| 908 | |
| 909 | return __crypto_comp_cast(crypto_alloc_base(alg_name, type, mask)); |
| 910 | } |
| 911 | |
| 912 | static inline struct crypto_tfm *crypto_comp_tfm(struct crypto_comp *tfm) |
| 913 | { |
| 914 | return tfm; |
| 915 | } |
| 916 | |
| 917 | static inline void crypto_free_comp(struct crypto_comp *tfm) |
| 918 | { |
| 919 | crypto_free_tfm(crypto_comp_tfm(tfm)); |
| 920 | } |
| 921 | |
| 922 | static inline int crypto_has_comp(const char *alg_name, u32 type, u32 mask) |
| 923 | { |
| 924 | type &= ~CRYPTO_ALG_TYPE_MASK; |
| 925 | type |= CRYPTO_ALG_TYPE_COMPRESS; |
| 926 | mask |= CRYPTO_ALG_TYPE_MASK; |
| 927 | |
| 928 | return crypto_has_alg(alg_name, type, mask); |
| 929 | } |
| 930 | |
| 931 | static inline struct compress_tfm *crypto_comp_crt(struct crypto_comp *tfm) |
| 932 | { |
| 933 | return &crypto_comp_tfm(tfm)->crt_compress; |
| 934 | } |
| 935 | |
| 936 | static inline int crypto_comp_compress(struct crypto_comp *tfm, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | const u8 *src, unsigned int slen, |
| 938 | u8 *dst, unsigned int *dlen) |
| 939 | { |
Herbert Xu | fce32d7 | 2006-08-26 17:35:45 +1000 | [diff] [blame^] | 940 | return crypto_comp_crt(tfm)->cot_compress(tfm, src, slen, dst, dlen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | } |
| 942 | |
Herbert Xu | fce32d7 | 2006-08-26 17:35:45 +1000 | [diff] [blame^] | 943 | static inline int crypto_comp_decompress(struct crypto_comp *tfm, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | const u8 *src, unsigned int slen, |
| 945 | u8 *dst, unsigned int *dlen) |
| 946 | { |
Herbert Xu | fce32d7 | 2006-08-26 17:35:45 +1000 | [diff] [blame^] | 947 | return crypto_comp_crt(tfm)->cot_decompress(tfm, src, slen, dst, dlen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | } |
| 949 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 950 | #endif /* _LINUX_CRYPTO_H */ |
| 951 | |