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Partial unit tests for rollback_index

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BUG=chromium-os:17564
TEST=make && make runtests

Change-Id: I8ea6bcc15f277e10c5b8539f2ea19ad90be34889
Reviewed-on: http://gerrit.chromium.org/gerrit/6770
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Tested-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Randall Spangler
2011-08-26 12:53:16 -07:00
parent c0911e27b9
commit cb3313e8cb
6 changed files with 330 additions and 33 deletions
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23
firmware/lib/rollback_index.c
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@@ -36,12 +36,7 @@ uint32_t TPMClearAndReenable(void) {
}
/* Like TlclWrite(), but checks for write errors due to hitting the 64-write
* limit and clears the TPM when that happens. This can only happen when the
* TPM is unowned, so it is OK to clear it (and we really have no choice).
* This is not expected to happen frequently, but it could happen.
*/
static uint32_t SafeWrite(uint32_t index, const void* data, uint32_t length) {
uint32_t SafeWrite(uint32_t index, const void* data, uint32_t length) {
uint32_t result = TlclWrite(index, data, length);
if (result == TPM_E_MAXNVWRITES) {
RETURN_ON_FAILURE(TPMClearAndReenable());
@@ -52,12 +47,7 @@ static uint32_t SafeWrite(uint32_t index, const void* data, uint32_t length) {
}
/* Similarly to SafeWrite(), this ensures we don't fail a DefineSpace because
* we hit the TPM write limit. This is even less likely to happen than with
* writes because we only define spaces once at initialization, but we'd rather
* be paranoid about this.
*/
static uint32_t SafeDefineSpace(uint32_t index, uint32_t perm, uint32_t size) {
uint32_t SafeDefineSpace(uint32_t index, uint32_t perm, uint32_t size) {
uint32_t result = TlclDefineSpace(index, perm, size);
if (result == TPM_E_MAXNVWRITES) {
RETURN_ON_FAILURE(TPMClearAndReenable());
@@ -87,12 +77,9 @@ static uint32_t WriteSpaceKernel(const RollbackSpaceKernel* rsk) {
return SafeWrite(KERNEL_NV_INDEX, rsk, sizeof(RollbackSpaceKernel));
}
/* Performs one-time initializations. Creates the NVRAM spaces, and sets their
* initial values as needed. Sets the nvLocked bit and ensures the physical
* presence command is enabled and locked.
*/
static uint32_t OneTimeInitializeTPM(RollbackSpaceFirmware* rsf,
RollbackSpaceKernel* rsk) {
uint32_t OneTimeInitializeTPM(RollbackSpaceFirmware* rsf,
RollbackSpaceKernel* rsk) {
static const RollbackSpaceFirmware rsf_init = {
ROLLBACK_SPACE_FIRMWARE_VERSION, 0, 0, 0};
static const RollbackSpaceKernel rsk_init = {