request

函数名称：quest_key - Request a key and wait for construction*@type: Type of key.*@description: The searchable description of the key.*@callout_info: The data to pass to the instantiation upcall (or NULL).

函数原型：static inline struct key *request_key(struct key_type *type, const char *description, const char *callout_info)

返回类型：struct key

参数：

类型	参数	名称
struct key_type *	type
const char *	description
const char *	callout_info

**调用者**
名称	描述
digsig_verify	digsig_verify() - digital signature verification with public key@keyring: keyring to search key in@sig: digital signature@siglen: length of the signature@data: data@datalen: length of the data Returns 0 on success, -EINVAL otherwise
request_user_key	quest_user_key - request the user key* Use a user provided key to encrypt/decrypt an encrypted-key.
request_trusted_key	quest_trusted_key - request the trusted key* Trusted keys are sealed to PCRs and other metadata. Although userspace* manages both trusted/encrypted key-types, like the encrypted key type* data, trusted key type data is not visible decrypted from userspace.
integrity_keyring_from_id
request_asymmetric_key	Request an asymmetric key.
evm_init_key	Get the key from the TPM for the SHA1-HMAC
find_and_lock_process_key	Search the current task's subscribed keyrings for a "logon" key with* description prefix:descriptor, and if found acquire a read lock on it and* return a pointer to its validated payload in *payload_ret.

函数逻辑报告