tpm_get_random

函数名称：tpm_get_random

函数原型：static inline int tpm_get_random(struct tpm_chip *chip, u8 *data, size_t max)

返回类型：int

参数：

**调用者**
名称	描述
osap	Create an object specific authorisation protocol (OSAP) session
tpm_seal	Have the TPM seal(encrypt) the trusted key, possibly based on* Platform Configuration Registers (PCRs). AUTH1 for sealing key.
tpm_unseal	se the AUTH2_COMMAND form of unseal, to authorize both key and blob
trusted_instantiate	rusted_instantiate - create a new trusted key* Unseal an existing trusted blob or, for a new key, get a* random key, then seal and create a trusted key-type key,* adding it to the specified keyring.* On success, return 0. Otherwise return errno.

函数逻辑报告