root/include/linux/bpf_crypto.h
/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
#ifndef _BPF_CRYPTO_H
#define _BPF_CRYPTO_H

struct bpf_crypto_type {
        void *(*alloc_tfm)(const char *algo);
        void (*free_tfm)(void *tfm);
        int (*has_algo)(const char *algo);
        int (*setkey)(void *tfm, const u8 *key, unsigned int keylen);
        int (*setauthsize)(void *tfm, unsigned int authsize);
        int (*encrypt)(void *tfm, const u8 *src, u8 *dst, unsigned int len, u8 *iv);
        int (*decrypt)(void *tfm, const u8 *src, u8 *dst, unsigned int len, u8 *iv);
        unsigned int (*ivsize)(void *tfm);
        unsigned int (*statesize)(void *tfm);
        u32 (*get_flags)(void *tfm);
        struct module *owner;
        char name[14];
};

int bpf_crypto_register_type(const struct bpf_crypto_type *type);
int bpf_crypto_unregister_type(const struct bpf_crypto_type *type);

#endif /* _BPF_CRYPTO_H */