Blame view
crypto/shash.c
14.8 KB
7b5a080b3 crypto: hash - Ad... |
1 2 3 4 5 6 7 8 9 10 11 |
/* * Synchronous Cryptographic Hash operations. * * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. * */ |
3b2f6df08 crypto: hash - Ex... |
12 |
#include <crypto/scatterwalk.h> |
7b5a080b3 crypto: hash - Ad... |
13 14 15 16 17 18 |
#include <crypto/internal/hash.h> #include <linux/err.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/seq_file.h> |
f4d663ce6 crypto: Add users... |
19 20 |
#include <linux/cryptouser.h> #include <net/netlink.h> |
d8c34b949 crypto: Replaced ... |
21 |
#include <linux/compiler.h> |
7b5a080b3 crypto: hash - Ad... |
22 |
|
3b2f6df08 crypto: hash - Ex... |
23 |
#include "internal.h" |
3f683d617 crypto: api - Fix... |
24 |
static const struct crypto_type crypto_shash_type; |
af3ff8045 crypto: hmac - re... |
25 26 |
int shash_no_setkey(struct crypto_shash *tfm, const u8 *key, unsigned int keylen) |
57cfe44bc crypto: shash - M... |
27 28 29 |
{ return -ENOSYS; } |
af3ff8045 crypto: hmac - re... |
30 |
EXPORT_SYMBOL_GPL(shash_no_setkey); |
57cfe44bc crypto: shash - M... |
31 |
|
7b5a080b3 crypto: hash - Ad... |
32 33 34 35 36 37 38 39 |
static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key, unsigned int keylen) { struct shash_alg *shash = crypto_shash_alg(tfm); unsigned long alignmask = crypto_shash_alignmask(tfm); unsigned long absize; u8 *buffer, *alignbuffer; int err; |
18eb8ea6e crypto: shash - R... |
40 |
absize = keylen + (alignmask & ~(crypto_tfm_ctx_alignment() - 1)); |
9039f3ef4 crypto: shash - F... |
41 |
buffer = kmalloc(absize, GFP_ATOMIC); |
7b5a080b3 crypto: hash - Ad... |
42 43 44 45 46 47 |
if (!buffer) return -ENOMEM; alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1); memcpy(alignbuffer, key, keylen); err = shash->setkey(tfm, alignbuffer, keylen); |
8c32c516e crypto: hash - Za... |
48 |
kzfree(buffer); |
7b5a080b3 crypto: hash - Ad... |
49 50 |
return err; } |
dc410d2d8 crypto: hash - se... |
51 52 53 54 55 56 |
static void shash_set_needkey(struct crypto_shash *tfm, struct shash_alg *alg) { if (crypto_shash_alg_has_setkey(alg) && !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY)) crypto_shash_set_flags(tfm, CRYPTO_TFM_NEED_KEY); } |
7b5a080b3 crypto: hash - Ad... |
57 58 59 60 61 |
int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key, unsigned int keylen) { struct shash_alg *shash = crypto_shash_alg(tfm); unsigned long alignmask = crypto_shash_alignmask(tfm); |
9fa68f620 crypto: hash - pr... |
62 |
int err; |
7b5a080b3 crypto: hash - Ad... |
63 64 |
if ((unsigned long)key & alignmask) |
9fa68f620 crypto: hash - pr... |
65 66 67 |
err = shash_setkey_unaligned(tfm, key, keylen); else err = shash->setkey(tfm, key, keylen); |
dc410d2d8 crypto: hash - se... |
68 69 |
if (unlikely(err)) { shash_set_needkey(tfm, shash); |
9fa68f620 crypto: hash - pr... |
70 |
return err; |
dc410d2d8 crypto: hash - se... |
71 |
} |
7b5a080b3 crypto: hash - Ad... |
72 |
|
9fa68f620 crypto: hash - pr... |
73 74 |
crypto_shash_clear_flags(tfm, CRYPTO_TFM_NEED_KEY); return 0; |
7b5a080b3 crypto: hash - Ad... |
75 76 77 78 79 80 |
} EXPORT_SYMBOL_GPL(crypto_shash_setkey); static inline unsigned int shash_align_buffer_size(unsigned len, unsigned long mask) { |
d8c34b949 crypto: Replaced ... |
81 |
typedef u8 __aligned_largest u8_aligned; |
66d8ea572 crypto: LLVMLinux... |
82 |
return len + (mask & ~(__alignof__(u8_aligned) - 1)); |
7b5a080b3 crypto: hash - Ad... |
83 84 85 86 87 88 89 90 91 92 |
} static int shash_update_unaligned(struct shash_desc *desc, const u8 *data, unsigned int len) { struct crypto_shash *tfm = desc->tfm; struct shash_alg *shash = crypto_shash_alg(tfm); unsigned long alignmask = crypto_shash_alignmask(tfm); unsigned int unaligned_len = alignmask + 1 - ((unsigned long)data & alignmask); |
0e2d3a126 crypto: shash - F... |
93 |
u8 ubuf[shash_align_buffer_size(unaligned_len, alignmask)] |
d8c34b949 crypto: Replaced ... |
94 |
__aligned_largest; |
0e2d3a126 crypto: shash - F... |
95 |
u8 *buf = PTR_ALIGN(&ubuf[0], alignmask + 1); |
8c32c516e crypto: hash - Za... |
96 |
int err; |
7b5a080b3 crypto: hash - Ad... |
97 |
|
f4f689933 crypto: shash - F... |
98 99 |
if (unaligned_len > len) unaligned_len = len; |
7b5a080b3 crypto: hash - Ad... |
100 |
memcpy(buf, data, unaligned_len); |
8c32c516e crypto: hash - Za... |
101 102 |
err = shash->update(desc, buf, unaligned_len); memset(buf, 0, unaligned_len); |
7b5a080b3 crypto: hash - Ad... |
103 |
|
8c32c516e crypto: hash - Za... |
104 |
return err ?: |
7b5a080b3 crypto: hash - Ad... |
105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 |
shash->update(desc, data + unaligned_len, len - unaligned_len); } int crypto_shash_update(struct shash_desc *desc, const u8 *data, unsigned int len) { struct crypto_shash *tfm = desc->tfm; struct shash_alg *shash = crypto_shash_alg(tfm); unsigned long alignmask = crypto_shash_alignmask(tfm); if ((unsigned long)data & alignmask) return shash_update_unaligned(desc, data, len); return shash->update(desc, data, len); } EXPORT_SYMBOL_GPL(crypto_shash_update); static int shash_final_unaligned(struct shash_desc *desc, u8 *out) { struct crypto_shash *tfm = desc->tfm; unsigned long alignmask = crypto_shash_alignmask(tfm); struct shash_alg *shash = crypto_shash_alg(tfm); unsigned int ds = crypto_shash_digestsize(tfm); |
0e2d3a126 crypto: shash - F... |
128 |
u8 ubuf[shash_align_buffer_size(ds, alignmask)] |
d8c34b949 crypto: Replaced ... |
129 |
__aligned_largest; |
0e2d3a126 crypto: shash - F... |
130 |
u8 *buf = PTR_ALIGN(&ubuf[0], alignmask + 1); |
7b5a080b3 crypto: hash - Ad... |
131 132 133 |
int err; err = shash->final(desc, buf); |
8c32c516e crypto: hash - Za... |
134 135 |
if (err) goto out; |
7b5a080b3 crypto: hash - Ad... |
136 |
memcpy(out, buf, ds); |
8c32c516e crypto: hash - Za... |
137 138 139 |
out: memset(buf, 0, ds); |
7b5a080b3 crypto: hash - Ad... |
140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 |
return err; } int crypto_shash_final(struct shash_desc *desc, u8 *out) { struct crypto_shash *tfm = desc->tfm; struct shash_alg *shash = crypto_shash_alg(tfm); unsigned long alignmask = crypto_shash_alignmask(tfm); if ((unsigned long)out & alignmask) return shash_final_unaligned(desc, out); return shash->final(desc, out); } EXPORT_SYMBOL_GPL(crypto_shash_final); static int shash_finup_unaligned(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *out) { return crypto_shash_update(desc, data, len) ?: crypto_shash_final(desc, out); } int crypto_shash_finup(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *out) { struct crypto_shash *tfm = desc->tfm; struct shash_alg *shash = crypto_shash_alg(tfm); unsigned long alignmask = crypto_shash_alignmask(tfm); |
8267adab9 crypto: shash - M... |
169 |
if (((unsigned long)data | (unsigned long)out) & alignmask) |
7b5a080b3 crypto: hash - Ad... |
170 171 172 173 174 175 176 177 178 179 |
return shash_finup_unaligned(desc, data, len, out); return shash->finup(desc, data, len, out); } EXPORT_SYMBOL_GPL(crypto_shash_finup); static int shash_digest_unaligned(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *out) { return crypto_shash_init(desc) ?: |
f88ad8de2 crypto: shash - U... |
180 |
crypto_shash_finup(desc, data, len, out); |
7b5a080b3 crypto: hash - Ad... |
181 182 183 184 185 186 187 188 |
} int crypto_shash_digest(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *out) { struct crypto_shash *tfm = desc->tfm; struct shash_alg *shash = crypto_shash_alg(tfm); unsigned long alignmask = crypto_shash_alignmask(tfm); |
9fa68f620 crypto: hash - pr... |
189 190 |
if (crypto_shash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY) return -ENOKEY; |
8267adab9 crypto: shash - M... |
191 |
if (((unsigned long)data | (unsigned long)out) & alignmask) |
7b5a080b3 crypto: hash - Ad... |
192 193 194 195 196 |
return shash_digest_unaligned(desc, data, len, out); return shash->digest(desc, data, len, out); } EXPORT_SYMBOL_GPL(crypto_shash_digest); |
f592682f9 crypto: shash - R... |
197 |
static int shash_default_export(struct shash_desc *desc, void *out) |
dec8b7860 crypto: hash - Ad... |
198 |
{ |
f592682f9 crypto: shash - R... |
199 200 |
memcpy(out, shash_desc_ctx(desc), crypto_shash_descsize(desc->tfm)); return 0; |
99d27e1c5 crypto: shash - E... |
201 |
} |
dec8b7860 crypto: hash - Ad... |
202 |
|
f592682f9 crypto: shash - R... |
203 |
static int shash_default_import(struct shash_desc *desc, const void *in) |
99d27e1c5 crypto: shash - E... |
204 |
{ |
f592682f9 crypto: shash - R... |
205 206 |
memcpy(shash_desc_ctx(desc), in, crypto_shash_descsize(desc->tfm)); return 0; |
dec8b7860 crypto: hash - Ad... |
207 |
} |
dec8b7860 crypto: hash - Ad... |
208 |
|
3b2f6df08 crypto: hash - Ex... |
209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 |
static int shash_async_setkey(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen) { struct crypto_shash **ctx = crypto_ahash_ctx(tfm); return crypto_shash_setkey(*ctx, key, keylen); } static int shash_async_init(struct ahash_request *req) { struct crypto_shash **ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req)); struct shash_desc *desc = ahash_request_ctx(req); desc->tfm = *ctx; desc->flags = req->base.flags; return crypto_shash_init(desc); } |
7eddf95ec crypto: shash - E... |
227 |
int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc) |
3b2f6df08 crypto: hash - Ex... |
228 |
{ |
3b2f6df08 crypto: hash - Ex... |
229 230 231 232 233 234 235 236 237 |
struct crypto_hash_walk walk; int nbytes; for (nbytes = crypto_hash_walk_first(req, &walk); nbytes > 0; nbytes = crypto_hash_walk_done(&walk, nbytes)) nbytes = crypto_shash_update(desc, walk.data, nbytes); return nbytes; } |
7eddf95ec crypto: shash - E... |
238 239 240 241 242 243 |
EXPORT_SYMBOL_GPL(shash_ahash_update); static int shash_async_update(struct ahash_request *req) { return shash_ahash_update(req, ahash_request_ctx(req)); } |
3b2f6df08 crypto: hash - Ex... |
244 245 246 247 248 |
static int shash_async_final(struct ahash_request *req) { return crypto_shash_final(ahash_request_ctx(req), req->result); } |
66f6ce5e5 crypto: ahash - A... |
249 250 251 252 |
int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc) { struct crypto_hash_walk walk; int nbytes; |
cbc86b916 crypto: shash - F... |
253 254 255 256 257 |
nbytes = crypto_hash_walk_first(req, &walk); if (!nbytes) return crypto_shash_final(desc, req->result); do { |
66f6ce5e5 crypto: ahash - A... |
258 259 260 261 |
nbytes = crypto_hash_walk_last(&walk) ? crypto_shash_finup(desc, walk.data, nbytes, req->result) : crypto_shash_update(desc, walk.data, nbytes); |
cbc86b916 crypto: shash - F... |
262 263 |
nbytes = crypto_hash_walk_done(&walk, nbytes); } while (nbytes > 0); |
66f6ce5e5 crypto: ahash - A... |
264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 |
return nbytes; } EXPORT_SYMBOL_GPL(shash_ahash_finup); static int shash_async_finup(struct ahash_request *req) { struct crypto_shash **ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req)); struct shash_desc *desc = ahash_request_ctx(req); desc->tfm = *ctx; desc->flags = req->base.flags; return shash_ahash_finup(req, desc); } |
7eddf95ec crypto: shash - E... |
279 |
int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc) |
3b2f6df08 crypto: hash - Ex... |
280 |
{ |
3b2f6df08 crypto: hash - Ex... |
281 |
unsigned int nbytes = req->nbytes; |
b61907bb4 crypto: shash - F... |
282 283 |
struct scatterlist *sg; unsigned int offset; |
3b2f6df08 crypto: hash - Ex... |
284 |
int err; |
b61907bb4 crypto: shash - F... |
285 286 287 |
if (nbytes && (sg = req->src, offset = sg->offset, nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset))) { |
3b2f6df08 crypto: hash - Ex... |
288 |
void *data; |
f0dfc0b0b crypto: remove th... |
289 |
data = kmap_atomic(sg_page(sg)); |
3b2f6df08 crypto: hash - Ex... |
290 291 |
err = crypto_shash_digest(desc, data + offset, nbytes, req->result); |
f0dfc0b0b crypto: remove th... |
292 |
kunmap_atomic(data); |
3b2f6df08 crypto: hash - Ex... |
293 |
crypto_yield(desc->flags); |
7eddf95ec crypto: shash - E... |
294 295 |
} else err = crypto_shash_init(desc) ?: |
66f6ce5e5 crypto: ahash - A... |
296 |
shash_ahash_finup(req, desc); |
3b2f6df08 crypto: hash - Ex... |
297 |
|
7eddf95ec crypto: shash - E... |
298 299 300 |
return err; } EXPORT_SYMBOL_GPL(shash_ahash_digest); |
3b2f6df08 crypto: hash - Ex... |
301 |
|
7eddf95ec crypto: shash - E... |
302 303 304 305 |
static int shash_async_digest(struct ahash_request *req) { struct crypto_shash **ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req)); struct shash_desc *desc = ahash_request_ctx(req); |
3b2f6df08 crypto: hash - Ex... |
306 |
|
7eddf95ec crypto: shash - E... |
307 308 |
desc->tfm = *ctx; desc->flags = req->base.flags; |
3b2f6df08 crypto: hash - Ex... |
309 |
|
7eddf95ec crypto: shash - E... |
310 |
return shash_ahash_digest(req, desc); |
3b2f6df08 crypto: hash - Ex... |
311 |
} |
66f6ce5e5 crypto: ahash - A... |
312 313 314 315 316 317 318 |
static int shash_async_export(struct ahash_request *req, void *out) { return crypto_shash_export(ahash_request_ctx(req), out); } static int shash_async_import(struct ahash_request *req, const void *in) { |
90246e79a crypto: hash - Fi... |
319 320 321 322 323 324 325 |
struct crypto_shash **ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req)); struct shash_desc *desc = ahash_request_ctx(req); desc->tfm = *ctx; desc->flags = req->base.flags; return crypto_shash_import(desc, in); |
66f6ce5e5 crypto: ahash - A... |
326 |
} |
3b2f6df08 crypto: hash - Ex... |
327 328 329 330 331 332 |
static void crypto_exit_shash_ops_async(struct crypto_tfm *tfm) { struct crypto_shash **ctx = crypto_tfm_ctx(tfm); crypto_free_shash(*ctx); } |
88056ec34 crypto: ahash - C... |
333 |
int crypto_init_shash_ops_async(struct crypto_tfm *tfm) |
3b2f6df08 crypto: hash - Ex... |
334 335 |
{ struct crypto_alg *calg = tfm->__crt_alg; |
66f6ce5e5 crypto: ahash - A... |
336 |
struct shash_alg *alg = __crypto_shash_alg(calg); |
88056ec34 crypto: ahash - C... |
337 |
struct crypto_ahash *crt = __crypto_ahash_cast(tfm); |
3b2f6df08 crypto: hash - Ex... |
338 339 340 341 342 |
struct crypto_shash **ctx = crypto_tfm_ctx(tfm); struct crypto_shash *shash; if (!crypto_mod_get(calg)) return -EAGAIN; |
3f683d617 crypto: api - Fix... |
343 |
shash = crypto_create_tfm(calg, &crypto_shash_type); |
3b2f6df08 crypto: hash - Ex... |
344 345 346 347 348 349 350 351 352 353 |
if (IS_ERR(shash)) { crypto_mod_put(calg); return PTR_ERR(shash); } *ctx = shash; tfm->exit = crypto_exit_shash_ops_async; crt->init = shash_async_init; crt->update = shash_async_update; |
66f6ce5e5 crypto: ahash - A... |
354 355 |
crt->final = shash_async_final; crt->finup = shash_async_finup; |
3b2f6df08 crypto: hash - Ex... |
356 |
crt->digest = shash_async_digest; |
dc410d2d8 crypto: hash - se... |
357 358 |
if (crypto_shash_alg_has_setkey(alg)) crt->setkey = shash_async_setkey; |
00420a65f crypto: shash - F... |
359 |
|
9fa68f620 crypto: hash - pr... |
360 361 |
crypto_ahash_set_flags(crt, crypto_shash_get_flags(shash) & CRYPTO_TFM_NEED_KEY); |
66f6ce5e5 crypto: ahash - A... |
362 |
|
66f6ce5e5 crypto: ahash - A... |
363 364 |
if (alg->export) crt->export = shash_async_export; |
0044f3eda crypto: shash - T... |
365 |
if (alg->import) |
66f6ce5e5 crypto: ahash - A... |
366 |
crt->import = shash_async_import; |
3b2f6df08 crypto: hash - Ex... |
367 |
|
3b2f6df08 crypto: hash - Ex... |
368 369 370 371 |
crt->reqsize = sizeof(struct shash_desc) + crypto_shash_descsize(shash); return 0; } |
2ca33da1d crypto: api - Rem... |
372 |
static int crypto_shash_init_tfm(struct crypto_tfm *tfm) |
7b5a080b3 crypto: hash - Ad... |
373 |
{ |
113adefc7 crypto: shash - M... |
374 |
struct crypto_shash *hash = __crypto_shash_cast(tfm); |
9fa68f620 crypto: hash - pr... |
375 376 377 |
struct shash_alg *alg = crypto_shash_alg(hash); hash->descsize = alg->descsize; |
dc410d2d8 crypto: hash - se... |
378 |
shash_set_needkey(hash, alg); |
113adefc7 crypto: shash - M... |
379 |
|
7b5a080b3 crypto: hash - Ad... |
380 381 |
return 0; } |
3acc84739 crypto: algapi - ... |
382 |
#ifdef CONFIG_NET |
f4d663ce6 crypto: Add users... |
383 384 385 386 |
static int crypto_shash_report(struct sk_buff *skb, struct crypto_alg *alg) { struct crypto_report_hash rhash; struct shash_alg *salg = __crypto_shash_alg(alg); |
9a5467bf7 crypto: user - fi... |
387 |
strncpy(rhash.type, "shash", sizeof(rhash.type)); |
f4d663ce6 crypto: Add users... |
388 389 |
rhash.blocksize = alg->cra_blocksize; rhash.digestsize = salg->digestsize; |
6662df33f crypto: Stop usin... |
390 391 392 |
if (nla_put(skb, CRYPTOCFGA_REPORT_HASH, sizeof(struct crypto_report_hash), &rhash)) goto nla_put_failure; |
f4d663ce6 crypto: Add users... |
393 394 395 396 397 |
return 0; nla_put_failure: return -EMSGSIZE; } |
3acc84739 crypto: algapi - ... |
398 399 400 401 402 403 |
#else static int crypto_shash_report(struct sk_buff *skb, struct crypto_alg *alg) { return -ENOSYS; } #endif |
f4d663ce6 crypto: Add users... |
404 |
|
7b5a080b3 crypto: hash - Ad... |
405 |
static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg) |
d8c34b949 crypto: Replaced ... |
406 |
__maybe_unused; |
7b5a080b3 crypto: hash - Ad... |
407 408 409 410 411 412 413 414 415 416 |
static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg) { struct shash_alg *salg = __crypto_shash_alg(alg); seq_printf(m, "type : shash "); seq_printf(m, "blocksize : %u ", alg->cra_blocksize); seq_printf(m, "digestsize : %u ", salg->digestsize); |
7b5a080b3 crypto: hash - Ad... |
417 418 419 |
} static const struct crypto_type crypto_shash_type = { |
ac611680c crypto: shash - U... |
420 |
.extsize = crypto_alg_extsize, |
7b5a080b3 crypto: hash - Ad... |
421 422 423 424 |
.init_tfm = crypto_shash_init_tfm, #ifdef CONFIG_PROC_FS .show = crypto_shash_show, #endif |
f4d663ce6 crypto: Add users... |
425 |
.report = crypto_shash_report, |
7b5a080b3 crypto: hash - Ad... |
426 427 428 429 430 431 432 433 434 |
.maskclear = ~CRYPTO_ALG_TYPE_MASK, .maskset = CRYPTO_ALG_TYPE_MASK, .type = CRYPTO_ALG_TYPE_SHASH, .tfmsize = offsetof(struct crypto_shash, base), }; struct crypto_shash *crypto_alloc_shash(const char *alg_name, u32 type, u32 mask) { |
3f683d617 crypto: api - Fix... |
435 |
return crypto_alloc_tfm(alg_name, &crypto_shash_type, type, mask); |
7b5a080b3 crypto: hash - Ad... |
436 437 |
} EXPORT_SYMBOL_GPL(crypto_alloc_shash); |
619a6ebd2 crypto: shash - A... |
438 |
static int shash_prepare_alg(struct shash_alg *alg) |
7b5a080b3 crypto: hash - Ad... |
439 440 441 442 |
{ struct crypto_alg *base = &alg->base; if (alg->digestsize > PAGE_SIZE / 8 || |
99d27e1c5 crypto: shash - E... |
443 444 |
alg->descsize > PAGE_SIZE / 8 || alg->statesize > PAGE_SIZE / 8) |
7b5a080b3 crypto: hash - Ad... |
445 446 447 448 449 |
return -EINVAL; base->cra_type = &crypto_shash_type; base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK; base->cra_flags |= CRYPTO_ALG_TYPE_SHASH; |
99d27e1c5 crypto: shash - E... |
450 |
|
8267adab9 crypto: shash - M... |
451 452 453 454 |
if (!alg->finup) alg->finup = shash_finup_unaligned; if (!alg->digest) alg->digest = shash_digest_unaligned; |
f592682f9 crypto: shash - R... |
455 456 457 458 459 |
if (!alg->export) { alg->export = shash_default_export; alg->import = shash_default_import; alg->statesize = alg->descsize; } |
57cfe44bc crypto: shash - M... |
460 461 |
if (!alg->setkey) alg->setkey = shash_no_setkey; |
99d27e1c5 crypto: shash - E... |
462 |
|
619a6ebd2 crypto: shash - A... |
463 464 465 466 467 468 469 470 471 472 473 |
return 0; } int crypto_register_shash(struct shash_alg *alg) { struct crypto_alg *base = &alg->base; int err; err = shash_prepare_alg(alg); if (err) return err; |
7b5a080b3 crypto: hash - Ad... |
474 475 476 477 478 479 480 481 482 483 |
return crypto_register_alg(base); } EXPORT_SYMBOL_GPL(crypto_register_shash); int crypto_unregister_shash(struct shash_alg *alg) { return crypto_unregister_alg(&alg->base); } EXPORT_SYMBOL_GPL(crypto_unregister_shash); |
50fc3e8d2 crypto: add crypt... |
484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 |
int crypto_register_shashes(struct shash_alg *algs, int count) { int i, ret; for (i = 0; i < count; i++) { ret = crypto_register_shash(&algs[i]); if (ret) goto err; } return 0; err: for (--i; i >= 0; --i) crypto_unregister_shash(&algs[i]); return ret; } EXPORT_SYMBOL_GPL(crypto_register_shashes); int crypto_unregister_shashes(struct shash_alg *algs, int count) { int i, ret; for (i = count - 1; i >= 0; --i) { ret = crypto_unregister_shash(&algs[i]); if (ret) pr_err("Failed to unregister %s %s: %d ", algs[i].base.cra_driver_name, algs[i].base.cra_name, ret); } return 0; } EXPORT_SYMBOL_GPL(crypto_unregister_shashes); |
619a6ebd2 crypto: shash - A... |
520 521 522 523 524 525 526 527 528 529 530 531 |
int shash_register_instance(struct crypto_template *tmpl, struct shash_instance *inst) { int err; err = shash_prepare_alg(&inst->alg); if (err) return err; return crypto_register_instance(tmpl, shash_crypto_instance(inst)); } EXPORT_SYMBOL_GPL(shash_register_instance); |
2e4fddd8e crypto: shash - A... |
532 533 534 535 536 537 |
void shash_free_instance(struct crypto_instance *inst) { crypto_drop_spawn(crypto_instance_ctx(inst)); kfree(shash_instance(inst)); } EXPORT_SYMBOL_GPL(shash_free_instance); |
942969992 crypto: shash - A... |
538 539 540 541 542 543 544 545 |
int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn, struct shash_alg *alg, struct crypto_instance *inst) { return crypto_init_spawn2(&spawn->base, &alg->base, inst, &crypto_shash_type); } EXPORT_SYMBOL_GPL(crypto_init_shash_spawn); |
7d6f56400 crypto: shash - A... |
546 547 548 549 550 551 552 553 554 |
struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask) { struct crypto_alg *alg; alg = crypto_attr_alg2(rta, &crypto_shash_type, type, mask); return IS_ERR(alg) ? ERR_CAST(alg) : container_of(alg, struct shash_alg, base); } EXPORT_SYMBOL_GPL(shash_attr_alg); |
7b5a080b3 crypto: hash - Ad... |
555 556 |
MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Synchronous cryptographic hash type"); |