#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 */ __le32 status; /* * Maximum number of data queue */ __le32 max_dataqueues; /* * Specifies the services mask which the device support, * see VIRTIO_CRYPTO_SERVICE_* above */ __le32 crypto_services; /* Detailed algorithms mask */ __le32 cipher_algo_l; __le32 cipher_algo_h; __le32 hash_algo; __le32 mac_algo_l; __le32 mac_algo_h; __le32 aead_algo; /* Maximum length of cipher key */ __le32 max_cipher_key_len; /* Maximum length of authenticated key */ __le32 max_auth_key_len; __le32 reserve; /* Maximum size of each crypto request's content */ __le64 max_size; }; struct virtio_crypto_inhdr { /* See VIRTIO_CRYPTO_* above */ __u8 status; }; #endif