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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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38
firmware/lib/include/rollback_index.h
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@@ -55,11 +55,11 @@ __pragma(pack(pop)) /* Support packing for MSVC. */
/* All functions return TPM_SUCCESS (zero) if successful, non-zero if error */
/* These functions are called from S3Resume(). They cannot use
* global variables. */
/* These functions are called from VbInit(). They cannot use global
* variables. */
uint32_t RollbackS3Resume(void);
/* These functions are callable from LoadFirmware(). They cannot use
/* These functions are callable from VbSelectFirmware(). They cannot use
* global variables. */
/* Setup must be called. Pass recovery_mode=nonzero if in recovery
@@ -74,8 +74,8 @@ uint32_t RollbackFirmwareWrite(uint32_t version);
/* Lock must be called */
uint32_t RollbackFirmwareLock(void);
/* These functions are callable from LoadKernel(). They may use global
* variables. */
/* These functions are callable from VbSelectAndLoadKernel(). They
* may use global variables. */
/* Read and write may be called to read and write the kernel version. */
uint32_t RollbackKernelRead(uint32_t* version);
@@ -84,9 +84,35 @@ uint32_t RollbackKernelWrite(uint32_t version);
/* Lock must be called. Internally, it's ignored in recovery mode. */
uint32_t RollbackKernelLock(void);
/* The following functions are here for testing only. */
/****************************************************************************/
/* The following functions are internal apis, listed here for use by
* unit tests only. */
/* Issue a TPM_Clear and reenable/reactivate the TPM. */
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. */
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. */
uint32_t SafeDefineSpace(uint32_t index, uint32_t perm, uint32_t size);
/* 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.
*/
uint32_t OneTimeInitializeTPM(RollbackSpaceFirmware* rsf,
RollbackSpaceKernel* rsk);
/* SetupTPM starts the TPM and establishes the root of trust for the
* anti-rollback mechanism. */
uint32_t SetupTPM(int recovery_mode, int developer_mode,
RollbackSpaceFirmware* rsf);
#endif /* VBOOT_REFERENCE_ROLLBACK_INDEX_H_ */