diff options
Diffstat (limited to 'src/security/tpm/tss')
| -rw-r--r-- | src/security/tpm/tss/tcg-1.2/tss.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/security/tpm/tss/tcg-1.2/tss.c b/src/security/tpm/tss/tcg-1.2/tss.c index 9bc72d2733..ea3f94d5f8 100644 --- a/src/security/tpm/tss/tcg-1.2/tss.c +++ b/src/security/tpm/tss/tcg-1.2/tss.c @@ -359,3 +359,22 @@ uint32_t tlcl_extend(int pcr_num, const uint8_t *in_digest, kPcrDigestLength); return result; } + +uint32_t tlcl_get_permissions(uint32_t index, uint32_t *permissions) +{ + struct s_tpm_getpermissions_cmd cmd; + uint8_t response[TPM_LARGE_ENOUGH_COMMAND_SIZE]; + uint8_t *nvdata; + uint32_t result; + uint32_t size; + + memcpy(&cmd, &tpm_getpermissions_cmd, sizeof(cmd)); + to_tpm_uint32(cmd.buffer + tpm_getpermissions_cmd.index, index); + result = tlcl_send_receive(cmd.buffer, response, sizeof(response)); + if (result != TPM_SUCCESS) + return result; + + nvdata = response + kTpmResponseHeaderLength + sizeof(size); + from_tpm_uint32(nvdata + kNvDataPublicPermissionsOffset, permissions); + return result; +} |