wifi_kmu.h

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/*
 * Copyright (c) 2026 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */
 
#ifndef WIFI_KMU_H__
#define WIFI_KMU_H__
 
#include <stdint.h>
#include <stddef.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
int wifi_kmu_write_key(uint32_t slot_id, uint32_t target_addr, const uint8_t *key_buffer,
                       size_t key_size);
 
int wifi_kmu_erase_keys(void);
 
/* Utility functions to prepare keys before passing to KMU */
 
static const uint32_t wifi_kmu_key_addr_invalid = 0xFFFFFFFF;
 
static const uint32_t wifi_kmu_key_length_invalid = 0xFFFFFFFE;
 
typedef enum {
        PEER_UCST_ENC,
        PEER_UCST_MIC,
        PEER_BCST_ENC,
        PEER_BCST_MIC,
        VIF_ENC,
        VIF_MIC
} wifi_kmu_key_type_t;
 
uint32_t wifi_kmu_get_key_start_addr(wifi_kmu_key_type_t type, uint32_t db_id, uint32_t key_index);
 
uint32_t wifi_kmu_get_key_size_in_bytes(wifi_kmu_key_type_t type);
 
uint32_t wifi_kmu_get_key_size_in_bits(wifi_kmu_key_type_t type);
 
int wifi_kmu_key_reverse_byte_order(void *restrict dst, const void *restrict src,
                                    uint32_t key_length_bytes);
 
int wifi_kmu_key_reverse_byte_order_in_place(void *buf, uint32_t key_length_bytes);
 
uint32_t wifi_kmu_get_next_slot(uint32_t key_length_bytes);
 
#ifdef __cplusplus
}
#endif
 
#endif /* WIFI_KMU_H__ */