diff options
Diffstat (limited to 'crypto/ahash.c')
| -rw-r--r-- | crypto/ahash.c | 39 |
1 files changed, 17 insertions, 22 deletions
diff --git a/crypto/ahash.c b/crypto/ahash.c index bc84a07c924c..a227793d2c5b 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -29,19 +29,6 @@ #define CRYPTO_ALG_TYPE_AHASH_MASK 0x0000000e -struct crypto_hash_walk { - const char *data; - - unsigned int offset; - unsigned int flags; - - struct page *pg; - unsigned int entrylen; - - unsigned int total; - struct scatterlist *sg; -}; - static int ahash_def_finup(struct ahash_request *req); static inline bool crypto_ahash_block_only(struct crypto_ahash *tfm) @@ -112,8 +99,8 @@ static int hash_walk_new_entry(struct crypto_hash_walk *walk) return hash_walk_next(walk); } -static int crypto_hash_walk_first(struct ahash_request *req, - struct crypto_hash_walk *walk) +int crypto_hash_walk_first(struct ahash_request *req, + struct crypto_hash_walk *walk) { walk->total = req->nbytes; walk->entrylen = 0; @@ -133,8 +120,9 @@ static int crypto_hash_walk_first(struct ahash_request *req, return hash_walk_new_entry(walk); } +EXPORT_SYMBOL_GPL(crypto_hash_walk_first); -static int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err) +int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err) { if ((walk->flags & CRYPTO_AHASH_REQ_VIRT)) return err; @@ -160,11 +148,7 @@ static int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err) return hash_walk_new_entry(walk); } - -static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk) -{ - return !(walk->entrylen | walk->total); -} +EXPORT_SYMBOL_GPL(crypto_hash_walk_done); /* * For an ahash tfm that is using an shash algorithm (instead of an ahash @@ -347,6 +331,12 @@ static int ahash_do_req_chain(struct ahash_request *req, if (crypto_ahash_statesize(tfm) > HASH_MAX_STATESIZE) return -ENOSYS; + if (!crypto_ahash_need_fallback(tfm)) + return -ENOSYS; + + if (crypto_hash_no_export_core(tfm)) + return -ENOSYS; + { u8 state[HASH_MAX_STATESIZE]; @@ -954,6 +944,10 @@ static int ahash_prepare_alg(struct ahash_alg *alg) base->cra_reqsize > MAX_SYNC_HASH_REQSIZE) return -EINVAL; + if (base->cra_flags & CRYPTO_ALG_NEED_FALLBACK && + base->cra_flags & CRYPTO_ALG_NO_FALLBACK) + return -EINVAL; + err = hash_prepare_alg(&alg->halg); if (err) return err; @@ -962,7 +956,8 @@ static int ahash_prepare_alg(struct ahash_alg *alg) base->cra_flags |= CRYPTO_ALG_TYPE_AHASH; if ((base->cra_flags ^ CRYPTO_ALG_REQ_VIRT) & - (CRYPTO_ALG_ASYNC | CRYPTO_ALG_REQ_VIRT)) + (CRYPTO_ALG_ASYNC | CRYPTO_ALG_REQ_VIRT) && + !(base->cra_flags & CRYPTO_ALG_NO_FALLBACK)) base->cra_flags |= CRYPTO_ALG_NEED_FALLBACK; if (!alg->setkey) |