diff options
Diffstat (limited to 'include/crypto/internal/acompress.h')
| -rw-r--r-- | include/crypto/internal/acompress.h | 43 |
1 files changed, 38 insertions, 5 deletions
diff --git a/include/crypto/internal/acompress.h b/include/crypto/internal/acompress.h index 978b57a3f4f0..4ac46bafba9d 100644 --- a/include/crypto/internal/acompress.h +++ b/include/crypto/internal/acompress.h @@ -12,6 +12,44 @@ #include <crypto/acompress.h> #include <crypto/algapi.h> +/** + * struct acomp_alg - asynchronous compression algorithm + * + * @compress: Function performs a compress operation + * @decompress: Function performs a de-compress operation + * @dst_free: Frees destination buffer if allocated inside the algorithm + * @init: Initialize the cryptographic transformation object. + * This function is used to initialize the cryptographic + * transformation object. This function is called only once at + * the instantiation time, right after the transformation context + * was allocated. In case the cryptographic hardware has some + * special requirements which need to be handled by software, this + * function shall check for the precise requirement of the + * transformation and put any software fallbacks in place. + * @exit: Deinitialize the cryptographic transformation object. This is a + * counterpart to @init, used to remove various changes set in + * @init. + * + * @reqsize: Context size for (de)compression requests + * @stat: Statistics for compress algorithm + * @base: Common crypto API algorithm data structure + * @calg: Cmonn algorithm data structure shared with scomp + */ +struct acomp_alg { + int (*compress)(struct acomp_req *req); + int (*decompress)(struct acomp_req *req); + void (*dst_free)(struct scatterlist *dst); + int (*init)(struct crypto_acomp *tfm); + void (*exit)(struct crypto_acomp *tfm); + + unsigned int reqsize; + + union { + struct COMP_ALG_COMMON; + struct comp_alg_common calg; + }; +}; + /* * Transform internal helpers. */ @@ -31,11 +69,6 @@ static inline void acomp_request_complete(struct acomp_req *req, crypto_request_complete(&req->base, err); } -static inline const char *acomp_alg_name(struct crypto_acomp *tfm) -{ - return crypto_acomp_tfm(tfm)->__crt_alg->cra_name; -} - static inline struct acomp_req *__acomp_request_alloc(struct crypto_acomp *tfm) { struct acomp_req *req; |