diff options
Diffstat (limited to 'src/crypto/digest/internal.h')
| -rw-r--r-- | src/crypto/digest/internal.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/crypto/digest/internal.h b/src/crypto/digest/internal.h index e3d812a..1572fa8 100644 --- a/src/crypto/digest/internal.h +++ b/src/crypto/digest/internal.h @@ -92,7 +92,7 @@ struct env_md_st { }; /* evp_md_pctx_ops contains function pointers to allow the |pctx| member of - * |EVP_MD_CTX| to be manipulated without breaking layering by calling EVP + * |EVP_MD_CTX| to be manipulated without breaking laying by calling EVP * functions. */ struct evp_md_pctx_ops { /* free is called when an |EVP_MD_CTX| is being freed and the |pctx| also @@ -102,8 +102,23 @@ struct evp_md_pctx_ops { /* dup is called when an |EVP_MD_CTX| is copied and so the |pctx| also needs * to be copied. */ EVP_PKEY_CTX* (*dup) (EVP_PKEY_CTX *pctx); + + /* begin_digest is called when a new digest operation is started. It returns + * one on success and zero otherwise. */ + int (*begin_digest) (EVP_MD_CTX *ctx); }; +/* EVP_MD_CTX_set_flags ORs |flags| into the flags member of |ctx|. */ +OPENSSL_EXPORT void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, uint32_t flags); + +/* EVP_MD_CTX_FLAG_NO_INIT causes the |EVP_MD|'s |init| function not to be + * called, the |update| member not to be copied from the |EVP_MD| in + * |EVP_DigestInit_ex| and for |md_data| not to be initialised. + * + * TODO(davidben): This is an implementation detail of |EVP_PKEY_HMAC| and can + * be removed when it is gone. */ +#define EVP_MD_CTX_FLAG_NO_INIT 1 + #if defined(__cplusplus) } /* extern C */ |