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TBR: reviewed in person with semenzato

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This commit is contained in:
Randall Spangler
2010-09-02 11:37:51 -07:00
parent 8adcb43774
commit 1fe1607679
10 changed files with 59 additions and 10 deletions
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29
firmware/lib/rollback_index.c
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@@ -256,6 +256,17 @@ __pragma(warning (disable: 4100))
/* Dummy implementations which don't support TPM rollback protection */
uint32_t RollbackS3Resume(void) {
#ifndef CHROMEOS_ENVIRONMENT
/* Initialize the TPM, but ignore return codes. In ChromeOS
* environment, don't even talk to the TPM. */
TlclLibInit();
TlclResume();
TlclSelfTestFull();
#endif
return TPM_SUCCESS;
}
uint32_t RollbackFirmwareSetup(int developer_mode, uint32_t* version) {
#ifndef CHROMEOS_ENVIRONMENT
/* Initializes the TPM, but ignores return codes. In ChromeOS
@@ -302,6 +313,22 @@ uint32_t RollbackKernelLock(void) {
}
#else
uint32_t RollbackS3Resume(void) {
TlclLibInit();
RETURN_ON_FAILURE(TlclResume());
#ifdef USE_CONTINUE_SELF_TEST
/* TODO: ContinueSelfTest() should be faster than SelfTestFull, but
* may also not work properly in older TPM firmware. For now, do
* the full self test. */
RETURN_ON_FAILURE(TlclContinueSelfTest());
#else
RETURN_ON_FAILURE(TlclSelfTestFull());
#endif
return TPM_SUCCESS;
}
uint32_t RollbackFirmwareSetup(int developer_mode, uint32_t* version) {
RollbackSpaceFirmware rsf;
uint8_t out_digest[20]; /* For PCR extend output */
@@ -316,7 +343,7 @@ uint32_t RollbackFirmwareSetup(int developer_mode, uint32_t* version) {
RETURN_ON_FAILURE(TlclExtend(DEV_MODE_PCR, DEV_MODE_OFF_SHA1_DIGEST,
out_digest));
VBDEBUG(("TPM: RollbackFirmwareSetup dev mode PCR out_digest %02x %02x %02x "
"%02x", out_digest, out_digest+1, out_digest+2, out_digest+3));
"%02x\n", out_digest, out_digest+1, out_digest+2, out_digest+3));
return TPM_SUCCESS;
}