5799097be5
This code ports antirollback module and tpm library from platform/vboot_reference. names are modified to conform to coreboot's style. The rollback_index module is split in a bottom half and top half. The top half contains generic code which hides the underlying storage implementation. The bottom half implements the storage abstraction. With this change, the bottom half is moved to coreboot, while the top half stays in vboot_reference. TEST=Built with USE=+/-vboot2 for Blaze. Built Samus, Link. BUG=none Branch=none Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Original-Change-Id: I77e3ae1a029e09d3cdefe8fd297a3b432bbb9e9e Original-Reviewed-on: https://chromium-review.googlesource.com/206065 Original-Reviewed-by: Randall Spangler <rspangler@chromium.org> Original-Reviewed-by: Luigi Semenzato <semenzato@chromium.org> (cherry picked from commit 6b66140ac979a991237bf1fe25e0a55244a406d0) Change-Id: Ia3b8f27d6b1c2055e898ce716c4a93782792599c Signed-off-by: Aaron Durbin <adurbin@chromium.org> Signed-off-by: Marc Jones <marc.jones@se-eng.com> Reviewed-on: http://review.coreboot.org/8615 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/*
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* TPM Lightweight Command Library.
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*
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* A low-level library for interfacing to TPM hardware or an emulator.
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*/
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#ifndef TPM_LITE_TLCL_H_
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#define TPM_LITE_TLCL_H_
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#include <stdint.h>
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#include "tss_constants.h"
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/*****************************************************************************/
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/* Functions implemented in tlcl.c */
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/**
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* Call this first. Returns 0 if success, nonzero if error.
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*/
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uint32_t tlcl_lib_init(void);
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/**
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* Perform a raw TPM request/response transaction.
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*/
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uint32_t tlcl_send_receive(const uint8_t *request, uint8_t *response,
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int max_length);
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/* Commands */
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/**
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* Send a TPM_Startup(ST_CLEAR). The TPM error code is returned (0 for
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* success).
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*/
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uint32_t tlcl_startup(void);
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/**
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* Resume by sending a TPM_Startup(ST_STATE). The TPM error code is returned
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* (0 for success).
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*/
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uint32_t tlcl_resume(void);
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/**
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* Run the self test.
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*
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* Note---this is synchronous. To run this in parallel with other firmware,
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* use ContinueSelfTest(). The TPM error code is returned.
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*/
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uint32_t tlcl_self_test_full(void);
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/**
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* Run the self test in the background.
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*/
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uint32_t tlcl_continue_self_test(void);
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/**
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* Define a space with permission [perm]. [index] is the index for the space,
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* [size] the usable data size. The TPM error code is returned.
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*/
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uint32_t tlcl_define_space(uint32_t index, uint32_t perm, uint32_t size);
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/**
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* Write [length] bytes of [data] to space at [index]. The TPM error code is
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* returned.
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*/
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uint32_t tlcl_write(uint32_t index, const void *data, uint32_t length);
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/**
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* Read [length] bytes from space at [index] into [data]. The TPM error code
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* is returned.
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*/
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uint32_t tlcl_read(uint32_t index, void *data, uint32_t length);
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/**
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* Assert physical presence in software. The TPM error code is returned.
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*/
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uint32_t tlcl_assert_physical_presence(void);
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/**
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* Enable the physical presence command. The TPM error code is returned.
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*/
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uint32_t tlcl_physical_presence_cmd_enable(void);
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/**
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* Finalize the physical presence settings: sofware PP is enabled, hardware PP
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* is disabled, and the lifetime lock is set. The TPM error code is returned.
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*/
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uint32_t tlcl_finalize_physical_presence(void);
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/**
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* Set the nvLocked bit. The TPM error code is returned.
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*/
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uint32_t tlcl_set_nv_locked(void);
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/**
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* Issue a ForceClear. The TPM error code is returned.
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*/
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uint32_t tlcl_force_clear(void);
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/**
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* Issue a PhysicalEnable. The TPM error code is returned.
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*/
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uint32_t tlcl_set_enable(void);
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/**
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* Issue a SetDeactivated. Pass 0 to activate. Returns result code.
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*/
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uint32_t tlcl_set_deactivated(uint8_t flag);
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/**
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* Get flags of interest. Pointers for flags you aren't interested in may
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* be NULL. The TPM error code is returned.
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*/
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uint32_t tlcl_get_flags(uint8_t *disable, uint8_t *deactivated,
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uint8_t *nvlocked);
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/**
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* Set the bGlobalLock flag, which only a reboot can clear. The TPM error
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* code is returned.
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*/
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uint32_t tlcl_set_global_lock(void);
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/**
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* Perform a TPM_Extend.
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*/
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uint32_t tlcl_extend(int pcr_num, const uint8_t *in_digest,
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uint8_t *out_digest);
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/**
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* Get the entire set of permanent flags.
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*/
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uint32_t tlcl_get_permanent_flags(TPM_PERMANENT_FLAGS *pflags);
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#endif /* TPM_LITE_TLCL_H_ */
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