diff options
Diffstat (limited to 'drivers/md/dm-verity.h')
| -rw-r--r-- | drivers/md/dm-verity.h | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/md/dm-verity.h b/drivers/md/dm-verity.h index fb419f422d73..a59e0ada6fd3 100644 --- a/drivers/md/dm-verity.h +++ b/drivers/md/dm-verity.h @@ -37,7 +37,7 @@ struct dm_verity { struct dm_target *ti; struct dm_bufio_client *bufio; char *alg_name; - struct crypto_shash *tfm; + struct crypto_ahash *tfm; u8 *root_digest; /* digest of the root block */ u8 *salt; /* salt: its size is salt_size */ u8 *zero_digest; /* digest for a zero block */ @@ -52,7 +52,7 @@ struct dm_verity { unsigned char levels; /* the number of tree levels */ unsigned char version; unsigned digest_size; /* digest size for the current hash algorithm */ - unsigned shash_descsize;/* the size of temporary space for crypto */ + unsigned int ahash_reqsize;/* the size of temporary space for crypto */ int hash_failed; /* set to 1 if hash of any block failed */ enum verity_mode mode; /* mode for handling verification errors */ unsigned corrupted_errs;/* Number of errors for corrupted blocks */ @@ -81,31 +81,36 @@ struct dm_verity_io { /* * Three variably-size fields follow this struct: * - * u8 hash_desc[v->shash_descsize]; + * u8 hash_req[v->ahash_reqsize]; * u8 real_digest[v->digest_size]; * u8 want_digest[v->digest_size]; * - * To access them use: verity_io_hash_desc(), verity_io_real_digest() + * To access them use: verity_io_hash_req(), verity_io_real_digest() * and verity_io_want_digest(). */ }; -static inline struct shash_desc *verity_io_hash_desc(struct dm_verity *v, +struct verity_result { + struct completion completion; + int err; +}; + +static inline struct ahash_request *verity_io_hash_req(struct dm_verity *v, struct dm_verity_io *io) { - return (struct shash_desc *)(io + 1); + return (struct ahash_request *)(io + 1); } static inline u8 *verity_io_real_digest(struct dm_verity *v, struct dm_verity_io *io) { - return (u8 *)(io + 1) + v->shash_descsize; + return (u8 *)(io + 1) + v->ahash_reqsize; } static inline u8 *verity_io_want_digest(struct dm_verity *v, struct dm_verity_io *io) { - return (u8 *)(io + 1) + v->shash_descsize + v->digest_size; + return (u8 *)(io + 1) + v->ahash_reqsize + v->digest_size; } static inline u8 *verity_io_digest_end(struct dm_verity *v, @@ -120,7 +125,7 @@ extern int verity_for_bv_block(struct dm_verity *v, struct dm_verity_io *io, struct dm_verity_io *io, u8 *data, size_t len)); -extern int verity_hash(struct dm_verity *v, struct shash_desc *desc, +extern int verity_hash(struct dm_verity *v, struct ahash_request *req, const u8 *data, size_t len, u8 *digest); extern int verity_hash_for_block(struct dm_verity *v, struct dm_verity_io *io, |