/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR MIT) */
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/*
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* Copyright (C) 2021 Rockchip Electronics Co., Ltd.
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*/
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#ifndef _UAPI_RK_CRYPTODEV_H
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#define _UAPI_RK_CRYPTODEV_H
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#include <linux/types.h>
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#include <linux/version.h>
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#ifndef __KERNEL__
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#define __user
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#endif
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/* input of RIOCCRYPT_FD */
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struct crypt_fd_op {
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__u32 ses; /* session identifier */
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__u16 op; /* COP_ENCRYPT or COP_DECRYPT */
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__u16 flags; /* see COP_FLAG_* */
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__u32 len; /* length of source data */
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int src_fd; /* source data */
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int dst_fd; /* pointer to output data */
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/* pointer to output data for hash/MAC operations */
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__u8 __user *mac;
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/* initialization vector for encryption operations */
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__u8 __user *iv;
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};
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/* input of RIOCAUTHCRYPT_FD */
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struct crypt_auth_fd_op {
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__u32 ses; /* session identifier */
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__u16 op; /* COP_ENCRYPT or COP_DECRYPT */
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__u16 flags; /* see COP_FLAG_AEAD_* */
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__u32 len; /* length of source data */
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__u32 auth_len; /* length of auth data */
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int auth_fd; /* authenticated-only data */
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int src_fd; /* source data */
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int dst_fd; /* pointer to output data */
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__u64 tag;
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__u32 tag_len; /* the length of the tag. Use zero for digest size or max
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* tag.
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*/
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__u64 iv; /* initialization vector for encryption operations */
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__u32 iv_len;
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};
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/* input of RIOCCRYPT_FD_MAP/RIOCCRYPT_FD_UNMAP */
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struct crypt_fd_map_op {
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int dma_fd; /* session identifier */
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__u32 phys_addr; /* physics addr */
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};
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#define AOP_ENCRYPT 0
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#define AOP_DECRYPT 1
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#define COP_FLAG_RSA_PUB (0 << 8) /* decode as rsa pub key */
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#define COP_FLAG_RSA_PRIV (1 << 8) /* decode as rsa priv key */
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#define RK_RSA_BER_KEY_MAX 8192 /* The key encoded by ber does not exceed 8K Byte */
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#define RK_RSA_KEY_MAX_BITS 4096
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#define RK_RSA_KEY_MAX_BYTES (RK_RSA_KEY_MAX_BITS / 8)
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/* input of RIOCCRYPT_RSA_CRYPT */
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struct crypt_rsa_op {
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__u16 op; /* AOP_ENCRYPT/AOP_DECRYPT */
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__u16 flags; /* see COP_FLAG_* */
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__u8 reserve[4];
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__u64 key; /* BER coding RSA key */
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__u64 in; /* pointer to input data */
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__u64 out; /* pointer to output data */
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__u32 key_len; /* length of key data */
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__u32 in_len; /* length of input data */
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__u32 out_len; /* length of output data */
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};
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#define RIOCCRYPT_FD _IOWR('r', 104, struct crypt_fd_op)
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#define RIOCCRYPT_FD_MAP _IOWR('r', 105, struct crypt_fd_map_op)
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#define RIOCCRYPT_FD_UNMAP _IOW('r', 106, struct crypt_fd_map_op)
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#define RIOCCRYPT_CPU_ACCESS _IOW('r', 107, struct crypt_fd_map_op)
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#define RIOCCRYPT_DEV_ACCESS _IOW('r', 108, struct crypt_fd_map_op)
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#define RIOCCRYPT_RSA_CRYPT _IOWR('r', 109, struct crypt_rsa_op)
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#define RIOCAUTHCRYPT_FD _IOWR('r', 110, struct crypt_auth_fd_op)
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#endif
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