diff options
Diffstat (limited to 'firmware/lib/tpm2_lite/tlcl.c')
| -rw-r--r-- | firmware/lib/tpm2_lite/tlcl.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/firmware/lib/tpm2_lite/tlcl.c b/firmware/lib/tpm2_lite/tlcl.c index a05ef77f..8e5fbeac 100644 --- a/firmware/lib/tpm2_lite/tlcl.c +++ b/firmware/lib/tpm2_lite/tlcl.c @@ -193,6 +193,37 @@ uint32_t TlclDefineSpace(uint32_t index, uint32_t perm, uint32_t size) return TlclDefineSpaceEx(NULL, 0, index, perm, size, NULL, 0); } +#ifdef CHROMEOS_ENVIRONMENT + +uint32_t TlclUndefineSpace(uint32_t index) +{ + return TlclUndefineSpaceEx(NULL, 0, index); +} + +uint32_t TlclUndefineSpaceEx(const uint8_t* owner_auth, + uint32_t owner_auth_size, + uint32_t index) +{ + struct tpm2_nv_undefine_space_cmd undefine_space; + uint32_t permissions; + uint32_t rv; + + /* Authentication support is not implemented. */ + VbAssert(owner_auth == NULL && owner_auth_size == 0); + + /* get the publicInfo of index */ + rv = TlclGetPermissions(index, &permissions); + if (rv != TPM_SUCCESS) { + return rv; + } + undefine_space.nvIndex = HR_NV_INDEX + index; + undefine_space.use_platform_auth = + (permissions & TPMA_NV_PLATFORMCREATE) > 0; + return tpm_get_response_code(TPM2_NV_UndefineSpace, &undefine_space); +} + +#endif /* CHROMEOS_ENVIRONMENT */ + uint32_t TlclDefineSpaceEx(const uint8_t* owner_auth, uint32_t owner_auth_size, uint32_t index, uint32_t perm, uint32_t size, const void* auth_policy, uint32_t auth_policy_size) |