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| author | Dhananjay Phadke <dphadke@linux.microsoft.com> | 2020-06-04 16:43:59 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-07-08 15:38:32 -0400 |
| commit | 06bea4980980c05106944b0192f24700fe479f0b (patch) | |
| tree | 0feb96f70938679a0660d432605521ffbaf36078 /include/tpm-v2.h | |
| parent | 78cc3fcf089b8fcaa4d9f21fcd1728bb32d9f5b7 (diff) | |
| download | u-boot-06bea4980980c05106944b0192f24700fe479f0b.zip u-boot-06bea4980980c05106944b0192f24700fe479f0b.tar.gz u-boot-06bea4980980c05106944b0192f24700fe479f0b.tar.bz2 | |
tpm: add TPM2_GetRandom command support
Add support for TPM2 GetRandom command
Signed-off-by: Dhananjay Phadke <dphadke@linux.microsoft.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/tpm-v2.h')
| -rw-r--r-- | include/tpm-v2.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/tpm-v2.h b/include/tpm-v2.h index d53d2e4..f6c045d 100644 --- a/include/tpm-v2.h +++ b/include/tpm-v2.h @@ -70,6 +70,7 @@ enum tpm2_handles { * @TPM2_CC_DAM_RESET: TPM2_DictionaryAttackLockReset(). * @TPM2_CC_DAM_PARAMETERS: TPM2_DictionaryAttackParameters(). * @TPM2_CC_GET_CAPABILITY: TPM2_GetCapibility(). + * @TPM2_CC_GET_RANDOM: TPM2_GetRandom(). * @TPM2_CC_PCR_READ: TPM2_PCR_Read(). * @TPM2_CC_PCR_EXTEND: TPM2_PCR_Extend(). * @TPM2_CC_PCR_SETAUTHVAL: TPM2_PCR_SetAuthValue(). @@ -85,6 +86,7 @@ enum tpm2_command_codes { TPM2_CC_DAM_PARAMETERS = 0x013A, TPM2_CC_NV_READ = 0x014E, TPM2_CC_GET_CAPABILITY = 0x017A, + TPM2_CC_GET_RANDOM = 0x017B, TPM2_CC_PCR_READ = 0x017E, TPM2_CC_PCR_EXTEND = 0x0182, TPM2_CC_PCR_SETAUTHVAL = 0x0183, @@ -339,4 +341,15 @@ u32 tpm2_pcr_setauthvalue(struct udevice *dev, const char *pw, const ssize_t pw_sz, u32 index, const char *key, const ssize_t key_sz); +/** + * Issue a TPM2_GetRandom command. + * + * @dev TPM device + * @param data output buffer for the random bytes + * @param count size of output buffer + * + * @return return code of the operation + */ +u32 tpm2_get_random(struct udevice *dev, void *data, u32 count); + #endif /* __TPM_V2_H */ |