44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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/* Copyright 2019 IBM Corp. */
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#ifndef _SECVAR_DRIVER_
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#define _SECVAR_DRIVER_
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#include <stdint.h>
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struct secvar;
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struct secvar_storage_driver {
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int (*load_bank)(struct list_head *bank, int section);
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int (*write_bank)(struct list_head *bank, int section);
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int (*store_init)(void);
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void (*lockdown)(void);
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uint64_t max_var_size;
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};
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struct secvar_backend_driver {
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/* Perform any pre-processing stuff (e.g. determine secure boot state) */
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int (*pre_process)(struct list_head *variable_bank,
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struct list_head *update_bank);
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/* Process all updates */
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int (*process)(struct list_head *variable_bank,
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struct list_head *update_bank);
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/* Perform any post-processing stuff (e.g. derive/update variables)*/
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int (*post_process)(struct list_head *variable_bank,
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struct list_head *update_bank);
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/* Validate a single variable, return boolean */
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int (*validate)(struct secvar *var);
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/* String to use for compatible in secvar node */
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const char *compatible;
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};
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extern struct secvar_storage_driver secboot_tpm_driver;
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extern struct secvar_backend_driver edk2_compatible_v1;
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int secvar_main(struct secvar_storage_driver, struct secvar_backend_driver);
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#endif
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