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#ifndef _VIRTIO_CRYPTO_H
#define _VIRTIO_CRYPTO_H
/* This header is BSD licensed so anyone can use the definitions to implement
* compatible drivers/servers.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of IBM nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IBM OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <linux/types.h>
#include <linux/virtio_types.h>
#include <linux/virtio_ids.h>
#include <linux/virtio_config.h>
#define VIRTIO_CRYPTO_SERVICE_CIPHER 0
#define VIRTIO_CRYPTO_SERVICE_HASH 1
#define VIRTIO_CRYPTO_SERVICE_MAC 2
#define VIRTIO_CRYPTO_SERVICE_AEAD 3
#define VIRTIO_CRYPTO_OPCODE(service, op) (((service) << 8) | (op))
struct virtio_crypto_ctrl_header {
#define VIRTIO_CRYPTO_CIPHER_CREATE_SESSION \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_CIPHER, 0x02)
#define VIRTIO_CRYPTO_CIPHER_DESTROY_SESSION \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_CIPHER, 0x03)
#define VIRTIO_CRYPTO_HASH_CREATE_SESSION \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_HASH, 0x02)
#define VIRTIO_CRYPTO_HASH_DESTROY_SESSION \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_HASH, 0x03)
#define VIRTIO_CRYPTO_MAC_CREATE_SESSION \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_MAC, 0x02)
#define VIRTIO_CRYPTO_MAC_DESTROY_SESSION \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_MAC, 0x03)
#define VIRTIO_CRYPTO_AEAD_CREATE_SESSION \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x02)
#define VIRTIO_CRYPTO_AEAD_DESTROY_SESSION \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x03)
__le32 opcode;
__le32 algo;
__le32 flag;
/* data virtqueue id */
__le32 queue_id;
};
struct virtio_crypto_cipher_session_para {
#define VIRTIO_CRYPTO_NO_CIPHER 0
#define VIRTIO_CRYPTO_CIPHER_ARC4 1
#define VIRTIO_CRYPTO_CIPHER_AES_ECB 2
#define VIRTIO_CRYPTO_CIPHER_AES_CBC 3
#define VIRTIO_CRYPTO_CIPHER_AES_CTR 4
#define VIRTIO_CRYPTO_CIPHER_DES_ECB 5
#define VIRTIO_CRYPTO_CIPHER_DES_CBC 6
#define VIRTIO_CRYPTO_CIPHER_3DES_ECB 7
#define VIRTIO_CRYPTO_CIPHER_3DES_CBC 8
#define VIRTIO_CRYPTO_CIPHER_3DES_CTR 9
#define VIRTIO_CRYPTO_CIPHER_KASUMI_F8 10
#define VIRTIO_CRYPTO_CIPHER_SNOW3G_UEA2 11
#define VIRTIO_CRYPTO_CIPHER_AES_F8 12
#define VIRTIO_CRYPTO_CIPHER_AES_XTS 13
#define VIRTIO_CRYPTO_CIPHER_ZUC_EEA3 14
__le32 algo;
/* length of key */
__le32 keylen;
#define VIRTIO_CRYPTO_OP_ENCRYPT 1
#define VIRTIO_CRYPTO_OP_DECRYPT 2
/* encrypt or decrypt */
__le32 op;
__le32 padding;
};
struct virtio_crypto_session_input {
/* Device-writable part */
__le64 session_id;
__le32 status;
__le32 padding;
};
struct virtio_crypto_cipher_session_req {
struct virtio_crypto_cipher_session_para para;
__u8 padding[32];
};
struct virtio_crypto_hash_session_para {
#define VIRTIO_CRYPTO_NO_HASH 0
#define VIRTIO_CRYPTO_HASH_MD5 1
#define VIRTIO_CRYPTO_HASH_SHA1 2
#define VIRTIO_CRYPTO_HASH_SHA_224 3
#define VIRTIO_CRYPTO_HASH_SHA_256 4
#define VIRTIO_CRYPTO_HASH_SHA_384 5
#define VIRTIO_CRYPTO_HASH_SHA_512 6
#define VIRTIO_CRYPTO_HASH_SHA3_224 7
#define VIRTIO_CRYPTO_HASH_SHA3_256 8
#define VIRTIO_CRYPTO_HASH_SHA3_384 9
#define VIRTIO_CRYPTO_HASH_SHA3_512 10
#define VIRTIO_CRYPTO_HASH_SHA3_SHAKE128 11
#define VIRTIO_CRYPTO_HASH_SHA3_SHAKE256 12
__le32 algo;
/* hash result length */
__le32 hash_result_len;
__u8 padding[8];
};
struct virtio_crypto_hash_create_session_req {
struct virtio_crypto_hash_session_para para;
__u8 padding[40];
};
struct virtio_crypto_mac_session_para {
#define VIRTIO_CRYPTO_NO_MAC 0
#define VIRTIO_CRYPTO_MAC_HMAC_MD5 1
#define VIRTIO_CRYPTO_MAC_HMAC_SHA1 2
#define VIRTIO_CRYPTO_MAC_HMAC_SHA_224 3
#define VIRTIO_CRYPTO_MAC_HMAC_SHA_256 4
#define VIRTIO_CRYPTO_MAC_HMAC_SHA_384 5
#define VIRTIO_CRYPTO_MAC_HMAC_SHA_512 6
#define VIRTIO_CRYPTO_MAC_CMAC_3DES 25
#define VIRTIO_CRYPTO_MAC_CMAC_AES 26
#define VIRTIO_CRYPTO_MAC_KASUMI_F9 27
#define VIRTIO_CRYPTO_MAC_SNOW3G_UIA2 28
#define VIRTIO_CRYPTO_MAC_GMAC_AES 41
#define VIRTIO_CRYPTO_MAC_GMAC_TWOFISH 42
#define VIRTIO_CRYPTO_MAC_CBCMAC_AES 49
#define VIRTIO_CRYPTO_MAC_CBCMAC_KASUMI_F9 50
#define VIRTIO_CRYPTO_MAC_XCBC_AES 53
__le32 algo;
/* hash result length */
__le32 hash_result_len;
/* length of authenticated key */
__le32 auth_key_len;
__le32 padding;
};
struct virtio_crypto_mac_create_session_req {
struct virtio_crypto_mac_session_para para;
__u8 padding[40];
};
struct virtio_crypto_aead_session_para {
#define VIRTIO_CRYPTO_NO_AEAD 0
#define VIRTIO_CRYPTO_AEAD_GCM 1
#define VIRTIO_CRYPTO_AEAD_CCM 2
#define VIRTIO_CRYPTO_AEAD_CHACHA20_POLY1305 3
__le32 algo;
/* length of key */
__le32 key_len;
/* hash result length */
__le32 hash_result_len;
/* length of the additional authenticated data (AAD) in bytes */
__le32 aad_len;
/* encrypt or decrypt, See above VIRTIO_CRYPTO_OP_* */
__le32 op;
__le32 padding;
};
struct virtio_crypto_aead_create_session_req {
struct virtio_crypto_aead_session_para para;
__u8 padding[32];
};
struct virtio_crypto_alg_chain_session_para {
#define VIRTIO_CRYPTO_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER 1
#define VIRTIO_CRYPTO_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH 2
__le32 alg_chain_order;
/* Plain hash */
#define VIRTIO_CRYPTO_SYM_HASH_MODE_PLAIN 1
/* Authenticated hash (mac) */
#define VIRTIO_CRYPTO_SYM_HASH_MODE_AUTH 2
/* Nested hash */
#define VIRTIO_CRYPTO_SYM_HASH_MODE_NESTED 3
__le32 hash_mode;
struct virtio_crypto_cipher_session_para cipher_param;
union {
struct virtio_crypto_hash_session_para hash_param;
struct virtio_crypto_mac_session_para mac_param;
__u8 padding[16];
} u;
/* length of the additional authenticated data (AAD) in bytes */
__le32 aad_len;
__le32 padding;
};
struct virtio_crypto_alg_chain_session_req {
struct virtio_crypto_alg_chain_session_para para;
};
struct virtio_crypto_sym_create_session_req {
union {
struct virtio_crypto_cipher_session_req cipher;
struct virtio_crypto_alg_chain_session_req chain;
__u8 padding[48];
} u;
/* Device-readable part */
/* No operation */
#define VIRTIO_CRYPTO_SYM_OP_NONE 0
/* Cipher only operation on the data */
#define VIRTIO_CRYPTO_SYM_OP_CIPHER 1
/*
* Chain any cipher with any hash or mac operation. The order
* depends on the value of alg_chain_order param
*/
#define VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING 2
__le32 op_type;
__le32 padding;
};
struct virtio_crypto_destroy_session_req {
/* Device-readable part */
__le64 session_id;
__u8 padding[48];
};
/* The request of the control virtqueue's packet */
struct virtio_crypto_op_ctrl_req {
struct virtio_crypto_ctrl_header header;
union {
struct virtio_crypto_sym_create_session_req
sym_create_session;
struct virtio_crypto_hash_create_session_req
hash_create_session;
struct virtio_crypto_mac_create_session_req
mac_create_session;
struct virtio_crypto_aead_create_session_req
aead_create_session;
struct virtio_crypto_destroy_session_req
destroy_session;
__u8 padding[56];
} u;
};
struct virtio_crypto_op_header {
#define VIRTIO_CRYPTO_CIPHER_ENCRYPT \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_CIPHER, 0x00)
#define VIRTIO_CRYPTO_CIPHER_DECRYPT \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_CIPHER, 0x01)
#define VIRTIO_CRYPTO_HASH \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_HASH, 0x00)
#define VIRTIO_CRYPTO_MAC \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_MAC, 0x00)
#define VIRTIO_CRYPTO_AEAD_ENCRYPT \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x00)
#define VIRTIO_CRYPTO_AEAD_DECRYPT \
VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x01)
__le32 opcode;
/* algo should be service-specific algorithms */
__le32 algo;
/* session_id should be service-specific algorithms */
__le64 session_id;
/* control flag to control the request */
__le32 flag;
__le32 padding;
};
struct virtio_crypto_cipher_para {
/*
* Byte Length of valid IV/Counter
*
* For block ciphers in CBC or F8 mode, or for Kasumi in F8 mode, or for
* SNOW3G in UEA2 mode, this is the length of the IV (which
* must be the same as the block length of the cipher).
* For block ciphers in CTR mode, this is the length of the counter
* (which must be the same as the block length of the cipher).
* For AES-XTS, this is the 128bit tweak, i, from IEEE Std 1619-2007.
*
* The IV/Counter will be updated after every partial cryptographic
* operation.
*/
__le32 iv_len;
/* length of source data */
__le32 src_data_len;
/* length of dst data */
__le32 dst_data_len;
__le32 padding;
};
struct virtio_crypto_hash_para {
/* length of source data */
__le32 src_data_len;
/* hash result length */
__le32 hash_result_len;
};
struct virtio_crypto_mac_para {
struct virtio_crypto_hash_para hash;
};
struct virtio_crypto_aead_para {
/*
* Byte Length of valid IV data pointed to by the below iv_addr
* parameter.
*
* For GCM mode, this is either 12 (for 96-bit IVs) or 16, in which
* case iv_addr points to J0.
* For CCM mode, this is the length of the nonce, which can be in the
* range 7 to 13 inclusive.
*/
__le32 iv_len;
/* length of additional auth data */
__le32 aad_len;
/* length of source data */
__le32 src_data_len;
/* length of dst data */
__le32 dst_data_len;
};
struct virtio_crypto_cipher_data_req {
/* Device-readable part */
struct virtio_crypto_cipher_para para;
__u8 padding[24];
};
struct virtio_crypto_hash_data_req {
/* Device-readable part */
struct virtio_crypto_hash_para para;
__u8 padding[40];
};
struct virtio_crypto_mac_data_req {
/* Device-readable part */
struct virtio_crypto_mac_para para;
__u8 padding[40];
};
struct virtio_crypto_alg_chain_data_para {
__le32 iv_len;
/* Length of source data */
__le32 src_data_len;
/* Length of destination data */
__le32 dst_data_len;
/* Starting point for cipher processing in source data */
__le32 cipher_start_src_offset;
/* Length of the source data that the cipher will be computed on */
__le32 len_to_cipher;
/* Starting point for hash processing in source data */
__le32 hash_start_src_offset;
/* Length of the source data that the hash will be computed on */
__le32 len_to_hash;
/* Length of the additional auth data */
__le32 aad_len;
/* Length of the hash result */
__le32 hash_result_len;
__le32 reserved;
};
struct virtio_crypto_alg_chain_data_req {
/* Device-readable part */
struct virtio_crypto_alg_chain_data_para para;
};
struct virtio_crypto_sym_data_req {
union {
struct virtio_crypto_cipher_data_req cipher;
struct virtio_crypto_alg_chain_data_req chain;
__u8 padding[40];
} u;
/* See above VIRTIO_CRYPTO_SYM_OP_* */
__le32 op_type;
__le32 padding;
};
struct virtio_crypto_aead_data_req {
/* Device-readable part */
struct virtio_crypto_aead_para para;
__u8 padding[32];
};
/* The request of the data virtqueue's packet */
struct virtio_crypto_op_data_req {
struct virtio_crypto_op_header header;
union {
struct virtio_crypto_sym_data_req sym_req;
struct virtio_crypto_hash_data_req hash_req;
struct virtio_crypto_mac_data_req mac_req;
struct virtio_crypto_aead_data_req aead_req;
__u8 padding[48];
} u;
};
#define VIRTIO_CRYPTO_OK 0
#define VIRTIO_CRYPTO_ERR 1
#define VIRTIO_CRYPTO_BADMSG 2
#define VIRTIO_CRYPTO_NOTSUPP 3
#define VIRTIO_CRYPTO_INVSESS 4 /* Invalid session id */
/* The accelerator hardware is ready */
#define VIRTIO_CRYPTO_S_HW_READY (1 << 0)
struct virtio_crypto_config {
/* See VIRTIO_CRYPTO_OP_* above */
__u32 status;
/*
* Maximum number of data queue
*/
__u32 max_dataqueues;
/*
* Specifies the services mask which the device support,
* see VIRTIO_CRYPTO_SERVICE_* above
*/
__u32 crypto_services;
/* Detailed algorithms mask */
__u32 cipher_algo_l;
__u32 cipher_algo_h;
__u32 hash_algo;
__u32 mac_algo_l;
__u32 mac_algo_h;
__u32 aead_algo;
/* Maximum length of cipher key */
__u32 max_cipher_key_len;
/* Maximum length of authenticated key */
__u32 max_auth_key_len;
__u32 reserve;
/* Maximum size of each crypto request's content */
__u64 max_size;
};
struct virtio_crypto_inhdr {
/* See VIRTIO_CRYPTO_* above */
__u8 status;
};
#endif
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