diff options
Diffstat (limited to 'include/crypto/akcipher.h')
| -rw-r--r-- | include/crypto/akcipher.h | 78 |
1 files changed, 74 insertions, 4 deletions
diff --git a/include/crypto/akcipher.h b/include/crypto/akcipher.h index 18a10cad07aaaf..31c111bebb6888 100644 --- a/include/crypto/akcipher.h +++ b/include/crypto/akcipher.h @@ -54,6 +54,26 @@ struct crypto_akcipher { struct crypto_tfm base; }; +/* + * struct crypto_istat_akcipher - statistics for akcipher algorithm + * @encrypt_cnt: number of encrypt requests + * @encrypt_tlen: total data size handled by encrypt requests + * @decrypt_cnt: number of decrypt requests + * @decrypt_tlen: total data size handled by decrypt requests + * @verify_cnt: number of verify operation + * @sign_cnt: number of sign requests + * @err_cnt: number of error for akcipher requests + */ +struct crypto_istat_akcipher { + atomic64_t encrypt_cnt; + atomic64_t encrypt_tlen; + atomic64_t decrypt_cnt; + atomic64_t decrypt_tlen; + atomic64_t verify_cnt; + atomic64_t sign_cnt; + atomic64_t err_cnt; +}; + /** * struct akcipher_alg - generic public key algorithm * @@ -90,6 +110,7 @@ struct crypto_akcipher { * @exit: Deinitialize the cryptographic transformation object. This is a * counterpart to @init, used to remove various changes set in * @init. + * @stat: Statistics for akcipher algorithm * * @base: Common crypto API algorithm data structure */ @@ -106,6 +127,10 @@ struct akcipher_alg { int (*init)(struct crypto_akcipher *tfm); void (*exit)(struct crypto_akcipher *tfm); +#ifdef CONFIG_CRYPTO_STATS + struct crypto_istat_akcipher stat; +#endif + struct crypto_alg base; }; @@ -277,6 +302,27 @@ static inline unsigned int crypto_akcipher_maxsize(struct crypto_akcipher *tfm) return alg->max_size(tfm); } +static inline struct crypto_istat_akcipher *akcipher_get_stat( + struct akcipher_alg *alg) +{ +#ifdef CONFIG_CRYPTO_STATS + return &alg->stat; +#else + return NULL; +#endif +} + +static inline int crypto_akcipher_errstat(struct akcipher_alg *alg, int err) +{ + if (!IS_ENABLED(CONFIG_CRYPTO_STATS)) + return err; + + if (err && err != -EINPROGRESS && err != -EBUSY) + atomic64_inc(&akcipher_get_stat(alg)->err_cnt); + + return err; +} + /** * crypto_akcipher_encrypt() - Invoke public key encrypt operation * @@ -290,8 +336,16 @@ static inline unsigned int crypto_akcipher_maxsize(struct crypto_akcipher *tfm) static inline int crypto_akcipher_encrypt(struct akcipher_request *req) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); + struct akcipher_alg *alg = crypto_akcipher_alg(tfm); - return crypto_akcipher_alg(tfm)->encrypt(req); + if (IS_ENABLED(CONFIG_CRYPTO_STATS)) { + struct crypto_istat_akcipher *istat = akcipher_get_stat(alg); + + atomic64_inc(&istat->encrypt_cnt); + atomic64_add(req->src_len, &istat->encrypt_tlen); + } + + return crypto_akcipher_errstat(alg, alg->encrypt(req)); } /** @@ -307,8 +361,16 @@ static inline int crypto_akcipher_encrypt(struct akcipher_request *req) static inline int crypto_akcipher_decrypt(struct akcipher_request *req) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); + struct akcipher_alg *alg = crypto_akcipher_alg(tfm); - return crypto_akcipher_alg(tfm)->decrypt(req); + if (IS_ENABLED(CONFIG_CRYPTO_STATS)) { + struct crypto_istat_akcipher *istat = akcipher_get_stat(alg); + + atomic64_inc(&istat->decrypt_cnt); + atomic64_add(req->src_len, &istat->decrypt_tlen); + } + + return crypto_akcipher_errstat(alg, alg->decrypt(req)); } /** @@ -360,8 +422,12 @@ int crypto_akcipher_sync_decrypt(struct crypto_akcipher *tfm, static inline int crypto_akcipher_sign(struct akcipher_request *req) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); + struct akcipher_alg *alg = crypto_akcipher_alg(tfm); - return crypto_akcipher_alg(tfm)->sign(req); + if (IS_ENABLED(CONFIG_CRYPTO_STATS)) + atomic64_inc(&akcipher_get_stat(alg)->sign_cnt); + + return crypto_akcipher_errstat(alg, alg->sign(req)); } /** @@ -381,8 +447,12 @@ static inline int crypto_akcipher_sign(struct akcipher_request *req) static inline int crypto_akcipher_verify(struct akcipher_request *req) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); + struct akcipher_alg *alg = crypto_akcipher_alg(tfm); + + if (IS_ENABLED(CONFIG_CRYPTO_STATS)) + atomic64_inc(&akcipher_get_stat(alg)->verify_cnt); - return crypto_akcipher_alg(tfm)->verify(req); + return crypto_akcipher_errstat(alg, alg->verify(req)); } /** |