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      1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
      2 /*
      3  * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
      4  *
      5  * This software is available to you under a choice of one of two
      6  * licenses.  You may choose to be licensed under the terms of the GNU
      7  * General Public License (GPL) Version 2, available from the file
      8  * COPYING in the main directory of this source tree, or the
      9  * OpenIB.org BSD license below:
     10  *
     11  *     Redistribution and use in source and binary forms, with or
     12  *     without modification, are permitted provided that the following
     13  *     conditions are met:
     14  *
     15  *      - Redistributions of source code must retain the above
     16  *        copyright notice, this list of conditions and the following
     17  *        disclaimer.
     18  *
     19  *      - Redistributions in binary form must reproduce the above
     20  *        copyright notice, this list of conditions and the following
     21  *        disclaimer in the documentation and/or other materials
     22  *        provided with the distribution.
     23  *
     24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     31  * SOFTWARE.
     32  */
     33 
     34 #ifndef _UAPI_LINUX_TLS_H
     35 #define _UAPI_LINUX_TLS_H
     36 
     37 #include <linux/types.h>
     38 
     39 /* TLS socket options */
     40 #define TLS_TX			1	/* Set transmit parameters */
     41 
     42 /* Supported versions */
     43 #define TLS_VERSION_MINOR(ver)	((ver) & 0xFF)
     44 #define TLS_VERSION_MAJOR(ver)	(((ver) >> 8) & 0xFF)
     45 
     46 #define TLS_VERSION_NUMBER(id)	((((id##_VERSION_MAJOR) & 0xFF) << 8) |	\
     47 				 ((id##_VERSION_MINOR) & 0xFF))
     48 
     49 #define TLS_1_2_VERSION_MAJOR	0x3
     50 #define TLS_1_2_VERSION_MINOR	0x3
     51 #define TLS_1_2_VERSION		TLS_VERSION_NUMBER(TLS_1_2)
     52 
     53 /* Supported ciphers */
     54 #define TLS_CIPHER_AES_GCM_128				51
     55 #define TLS_CIPHER_AES_GCM_128_IV_SIZE			8
     56 #define TLS_CIPHER_AES_GCM_128_KEY_SIZE		16
     57 #define TLS_CIPHER_AES_GCM_128_SALT_SIZE		4
     58 #define TLS_CIPHER_AES_GCM_128_TAG_SIZE		16
     59 #define TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE		8
     60 
     61 #define TLS_SET_RECORD_TYPE	1
     62 
     63 struct tls_crypto_info {
     64 	__u16 version;
     65 	__u16 cipher_type;
     66 };
     67 
     68 struct tls12_crypto_info_aes_gcm_128 {
     69 	struct tls_crypto_info info;
     70 	unsigned char iv[TLS_CIPHER_AES_GCM_128_IV_SIZE];
     71 	unsigned char key[TLS_CIPHER_AES_GCM_128_KEY_SIZE];
     72 	unsigned char salt[TLS_CIPHER_AES_GCM_128_SALT_SIZE];
     73 	unsigned char rec_seq[TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE];
     74 };
     75 
     76 #endif /* _UAPI_LINUX_TLS_H */
     77