51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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/* Copyright 2013-2019 IBM Corp. */
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#ifndef _SECVAR_H_
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#define _SECVAR_H_
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#include <ccan/list/list.h>
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#include <stdint.h>
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#include <secvar.h>
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#define SECVAR_MAX_KEY_LEN 1024
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enum {
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SECVAR_VARIABLE_BANK,
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SECVAR_UPDATE_BANK,
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};
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#define SECVAR_FLAG_VOLATILE 0x1 /* Instructs storage driver to ignore variable on writes */
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#define SECVAR_FLAG_PROTECTED 0x2 /* Instructs storage driver to store in lockable flash */
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struct secvar {
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struct list_node link;
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uint64_t key_len;
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uint64_t data_size;
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uint64_t flags;
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char *key;
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char *data;
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};
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extern struct list_head variable_bank;
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extern struct list_head update_bank;
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extern int secvar_enabled;
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extern int secvar_ready;
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extern struct secvar_storage_driver secvar_storage;
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extern struct secvar_backend_driver secvar_backend;
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// Helper functions
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void clear_bank_list(struct list_head *bank);
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int copy_bank_list(struct list_head *dst, struct list_head *src);
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struct secvar *alloc_secvar(uint64_t key_len, uint64_t data_size);
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struct secvar *new_secvar(const char *key, uint64_t key_len,
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const char *data, uint64_t data_size,
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uint64_t flags);
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int realloc_secvar(struct secvar *node, uint64_t size);
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void dealloc_secvar(struct secvar *node);
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struct secvar *find_secvar(const char *key, uint64_t key_len, struct list_head *bank);
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int is_key_empty(const char *key, uint64_t key_len);
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int list_length(struct list_head *bank);
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#endif
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