crypto_ahash

函数名称：rypto_ahash_reqtfm() - obtain cipher handle from request*@req: asynchronous request handle that contains the reference to the ahash* cipher handle* Return the ahash cipher handle that is registered with the asynchronous* request handle ahash_request

函数原型：static inline struct crypto_ahash *crypto_ahash_reqtfm(struct ahash_request *req)

返回类型：struct crypto_ahash

参数：

类型	参数	名称
struct ahash_request *	req

**调用者**
名称	描述
crypto_ahash_export	rypto_ahash_export() - extract current message digest state@req: reference to the ahash_request handle whose state is exported@out: output buffer of sufficient size that can hold the hash state* This function exports the hash state of the ahash_request
crypto_ahash_import	rypto_ahash_import() - import message digest state@req: reference to ahash_request handle the state is imported into@in: buffer holding the state* This function imports the hash state into the ahash_request handle from the* input buffer
crypto_ahash_init	rypto_ahash_init() - (re)initialize message digest handle@req: ahash_request handle that already is initialized with all necessary data using the ahash_request_* API functions* The call (re-)initializes the message digest referenced by the ahash_request
crypto_ahash_update	rypto_ahash_update() - add data to message digest for processing@req: ahash_request handle that was previously initialized with the crypto_ahash_init call
ahash_request_zero

函数逻辑报告