2020-05-10 19:44:08 +02:00
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/* SPDX-License-Identifier: BSD-3-Clause */
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2017-02-10 03:06:16 +01:00
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/*
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2015-04-09 17:18:22 +02:00
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* Functions for querying, manipulating and locking rollback indices
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* stored in the TPM NVRAM.
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*/
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2018-02-27 19:40:52 +01:00
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#include <security/tpm/tspi.h>
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2015-04-09 17:18:22 +02:00
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#include <vb2_api.h>
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2018-02-27 19:40:52 +01:00
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#include "antirollback.h"
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2019-07-31 08:19:00 +02:00
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vb2_error_t vb2ex_tpm_clear_owner(struct vb2_context *ctx)
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2015-04-09 17:18:22 +02:00
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{
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2018-02-27 19:40:52 +01:00
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return VB2_SUCCESS;
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2015-04-09 17:18:22 +02:00
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}
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2019-07-31 08:19:00 +02:00
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vb2_error_t antirollback_read_space_firmware(struct vb2_context *ctx)
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2015-04-09 17:18:22 +02:00
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{
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2019-12-16 19:13:34 +01:00
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vb2api_secdata_firmware_create(ctx);
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2018-02-27 19:40:52 +01:00
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return VB2_SUCCESS;
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2015-04-09 17:18:22 +02:00
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}
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2019-07-31 08:19:00 +02:00
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vb2_error_t antirollback_write_space_firmware(struct vb2_context *ctx)
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2015-04-09 17:18:22 +02:00
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{
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2018-02-27 19:40:52 +01:00
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return VB2_SUCCESS;
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2015-04-09 17:18:22 +02:00
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}
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2020-04-03 19:56:43 +02:00
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vb2_error_t antirollback_read_space_kernel(struct vb2_context *ctx)
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{
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vb2api_secdata_kernel_create(ctx);
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return VB2_SUCCESS;
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}
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vb2_error_t antirollback_write_space_kernel(struct vb2_context *ctx)
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{
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return VB2_SUCCESS;
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}
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2019-07-31 08:19:00 +02:00
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vb2_error_t antirollback_lock_space_firmware(void)
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2015-04-09 17:18:22 +02:00
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{
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2018-02-27 19:40:52 +01:00
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return VB2_SUCCESS;
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2015-04-09 17:18:22 +02:00
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}
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2016-11-08 08:47:11 +01:00
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2020-10-16 22:15:59 +02:00
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vb2_error_t antirollback_lock_space_mrc_hash(uint32_t index)
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2016-11-08 08:47:11 +01:00
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{
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2018-02-27 19:40:52 +01:00
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return VB2_SUCCESS;
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2016-11-08 08:47:11 +01:00
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}
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2017-01-27 00:33:01 +01:00
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2020-10-16 22:15:59 +02:00
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vb2_error_t antirollback_read_space_mrc_hash(uint32_t index, uint8_t *data, uint32_t size)
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2017-01-27 00:33:01 +01:00
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{
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2018-02-27 19:40:52 +01:00
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return VB2_SUCCESS;
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2017-01-27 00:33:01 +01:00
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}
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2020-10-16 22:15:59 +02:00
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vb2_error_t antirollback_write_space_mrc_hash(uint32_t index, const uint8_t *data,
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2019-07-31 08:19:00 +02:00
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uint32_t size)
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2017-04-26 07:32:34 +02:00
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{
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return VB2_SUCCESS;
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}
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