diff options
Diffstat (limited to 'crypto/api.c')
-rw-r--r-- | crypto/api.c | 52 |
1 files changed, 31 insertions, 21 deletions
diff --git a/crypto/api.c b/crypto/api.c index 9975a7bd246c..314dab96840e 100644 --- a/crypto/api.c +++ b/crypto/api.c | |||
@@ -215,8 +215,19 @@ struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask) | |||
215 | mask &= ~(CRYPTO_ALG_LARVAL | CRYPTO_ALG_DEAD); | 215 | mask &= ~(CRYPTO_ALG_LARVAL | CRYPTO_ALG_DEAD); |
216 | type &= mask; | 216 | type &= mask; |
217 | 217 | ||
218 | alg = try_then_request_module(crypto_alg_lookup(name, type, mask), | 218 | alg = crypto_alg_lookup(name, type, mask); |
219 | name); | 219 | if (!alg) { |
220 | char tmp[CRYPTO_MAX_ALG_NAME]; | ||
221 | |||
222 | request_module(name); | ||
223 | |||
224 | if (!((type ^ CRYPTO_ALG_NEED_FALLBACK) & mask) && | ||
225 | snprintf(tmp, sizeof(tmp), "%s-all", name) < sizeof(tmp)) | ||
226 | request_module(tmp); | ||
227 | |||
228 | alg = crypto_alg_lookup(name, type, mask); | ||
229 | } | ||
230 | |||
220 | if (alg) | 231 | if (alg) |
221 | return crypto_is_larval(alg) ? crypto_larval_wait(alg) : alg; | 232 | return crypto_is_larval(alg) ? crypto_larval_wait(alg) : alg; |
222 | 233 | ||
@@ -244,7 +255,7 @@ struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask) | |||
244 | struct crypto_alg *larval; | 255 | struct crypto_alg *larval; |
245 | int ok; | 256 | int ok; |
246 | 257 | ||
247 | if (!(mask & CRYPTO_ALG_TESTED)) { | 258 | if (!((type | mask) & CRYPTO_ALG_TESTED)) { |
248 | type |= CRYPTO_ALG_TESTED; | 259 | type |= CRYPTO_ALG_TESTED; |
249 | mask |= CRYPTO_ALG_TESTED; | 260 | mask |= CRYPTO_ALG_TESTED; |
250 | } | 261 | } |
@@ -453,8 +464,8 @@ err: | |||
453 | } | 464 | } |
454 | EXPORT_SYMBOL_GPL(crypto_alloc_base); | 465 | EXPORT_SYMBOL_GPL(crypto_alloc_base); |
455 | 466 | ||
456 | struct crypto_tfm *crypto_create_tfm(struct crypto_alg *alg, | 467 | void *crypto_create_tfm(struct crypto_alg *alg, |
457 | const struct crypto_type *frontend) | 468 | const struct crypto_type *frontend) |
458 | { | 469 | { |
459 | char *mem; | 470 | char *mem; |
460 | struct crypto_tfm *tfm = NULL; | 471 | struct crypto_tfm *tfm = NULL; |
@@ -488,9 +499,9 @@ out_free_tfm: | |||
488 | crypto_shoot_alg(alg); | 499 | crypto_shoot_alg(alg); |
489 | kfree(mem); | 500 | kfree(mem); |
490 | out_err: | 501 | out_err: |
491 | tfm = ERR_PTR(err); | 502 | mem = ERR_PTR(err); |
492 | out: | 503 | out: |
493 | return tfm; | 504 | return mem; |
494 | } | 505 | } |
495 | EXPORT_SYMBOL_GPL(crypto_create_tfm); | 506 | EXPORT_SYMBOL_GPL(crypto_create_tfm); |
496 | 507 | ||
@@ -514,12 +525,11 @@ EXPORT_SYMBOL_GPL(crypto_create_tfm); | |||
514 | * | 525 | * |
515 | * In case of error the return value is an error pointer. | 526 | * In case of error the return value is an error pointer. |
516 | */ | 527 | */ |
517 | struct crypto_tfm *crypto_alloc_tfm(const char *alg_name, | 528 | void *crypto_alloc_tfm(const char *alg_name, |
518 | const struct crypto_type *frontend, | 529 | const struct crypto_type *frontend, u32 type, u32 mask) |
519 | u32 type, u32 mask) | ||
520 | { | 530 | { |
521 | struct crypto_alg *(*lookup)(const char *name, u32 type, u32 mask); | 531 | struct crypto_alg *(*lookup)(const char *name, u32 type, u32 mask); |
522 | struct crypto_tfm *tfm; | 532 | void *tfm; |
523 | int err; | 533 | int err; |
524 | 534 | ||
525 | type &= frontend->maskclear; | 535 | type &= frontend->maskclear; |
@@ -557,34 +567,34 @@ err: | |||
557 | return ERR_PTR(err); | 567 | return ERR_PTR(err); |
558 | } | 568 | } |
559 | EXPORT_SYMBOL_GPL(crypto_alloc_tfm); | 569 | EXPORT_SYMBOL_GPL(crypto_alloc_tfm); |
560 | 570 | ||
561 | /* | 571 | /* |
562 | * crypto_free_tfm - Free crypto transform | 572 | * crypto_destroy_tfm - Free crypto transform |
573 | * @mem: Start of tfm slab | ||
563 | * @tfm: Transform to free | 574 | * @tfm: Transform to free |
564 | * | 575 | * |
565 | * crypto_free_tfm() frees up the transform and any associated resources, | 576 | * This function frees up the transform and any associated resources, |
566 | * then drops the refcount on the associated algorithm. | 577 | * then drops the refcount on the associated algorithm. |
567 | */ | 578 | */ |
568 | void crypto_free_tfm(struct crypto_tfm *tfm) | 579 | void crypto_destroy_tfm(void *mem, struct crypto_tfm *tfm) |
569 | { | 580 | { |
570 | struct crypto_alg *alg; | 581 | struct crypto_alg *alg; |
571 | int size; | 582 | int size; |
572 | 583 | ||
573 | if (unlikely(!tfm)) | 584 | if (unlikely(!mem)) |
574 | return; | 585 | return; |
575 | 586 | ||
576 | alg = tfm->__crt_alg; | 587 | alg = tfm->__crt_alg; |
577 | size = sizeof(*tfm) + alg->cra_ctxsize; | 588 | size = ksize(mem); |
578 | 589 | ||
579 | if (!tfm->exit && alg->cra_exit) | 590 | if (!tfm->exit && alg->cra_exit) |
580 | alg->cra_exit(tfm); | 591 | alg->cra_exit(tfm); |
581 | crypto_exit_ops(tfm); | 592 | crypto_exit_ops(tfm); |
582 | crypto_mod_put(alg); | 593 | crypto_mod_put(alg); |
583 | memset(tfm, 0, size); | 594 | memset(mem, 0, size); |
584 | kfree(tfm); | 595 | kfree(mem); |
585 | } | 596 | } |
586 | 597 | EXPORT_SYMBOL_GPL(crypto_destroy_tfm); | |
587 | EXPORT_SYMBOL_GPL(crypto_free_tfm); | ||
588 | 598 | ||
589 | int crypto_has_alg(const char *name, u32 type, u32 mask) | 599 | int crypto_has_alg(const char *name, u32 type, u32 mask) |
590 | { | 600 | { |