Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\keys\trusted-keys\trusted_tpm1.c Create Date:2022-07-28 18:30:22
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:For key specific tpm requests, we will generate and send our* own TPM command packets using the drivers send function.

Proto:int trusted_tpm_send(unsigned char *cmd, size_t buflen)

Type:int

Parameter:

TypeParameterName
unsigned char *cmd
size_tbuflen
368  If Not chip Then Return -ENODEV
371  dump_tpm_buf(cmd)
372  rc = tpm_send(chip, cmd, buflen)
373  dump_tpm_buf(cmd)
374  If rc > 0 Then rc = -EPERM
377  Return rc
Caller
NameDescribe
osapCreate an object specific authorisation protocol (OSAP) session
oiapCreate an object independent authorisation protocol (oiap) session
tpm_sealHave the TPM seal(encrypt) the trusted key, possibly based on* Platform Configuration Registers (PCRs). AUTH1 for sealing key.
tpm_unsealse the AUTH2_COMMAND form of unseal, to authorize both key and blob