include/uapi/linux/tls.h

   1 /*
   2  * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #ifndef _UAPI_LINUX_TLS_H
  34 #define _UAPI_LINUX_TLS_H
  35
  36 #include <linux/types.h>
  37 #include <asm/byteorder.h>
  38 #include <linux/socket.h>
  39 #include <linux/tcp.h>
  40 #include <net/tcp.h>
  41
  42 /* TLS socket options */
  43 #define TLS_TX                  1       /* Set transmit parameters */
  44
  45 /* Supported versions */
  46 #define TLS_VERSION_MINOR(ver)  ((ver) & 0xFF)
  47 #define TLS_VERSION_MAJOR(ver)  (((ver) >> 8) & 0xFF)
  48
  49 #define TLS_VERSION_NUMBER(id)  ((((id##_VERSION_MAJOR) & 0xFF) << 8) | \
  50                                  ((id##_VERSION_MINOR) & 0xFF))
  51
  52 #define TLS_1_2_VERSION_MAJOR   0x3
  53 #define TLS_1_2_VERSION_MINOR   0x3
  54 #define TLS_1_2_VERSION         TLS_VERSION_NUMBER(TLS_1_2)
  55
  56 /* Supported ciphers */
  57 #define TLS_CIPHER_AES_GCM_128                          51
  58 #define TLS_CIPHER_AES_GCM_128_IV_SIZE                  8
  59 #define TLS_CIPHER_AES_GCM_128_KEY_SIZE         16
  60 #define TLS_CIPHER_AES_GCM_128_SALT_SIZE                4
  61 #define TLS_CIPHER_AES_GCM_128_TAG_SIZE         16
  62 #define TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE             8
  63
  64 #define TLS_SET_RECORD_TYPE     1
  65
  66 struct tls_crypto_info {
  67         __u16 version;
  68         __u16 cipher_type;
  69 };
  70
  71 struct tls12_crypto_info_aes_gcm_128 {
  72         struct tls_crypto_info info;
  73         unsigned char iv[TLS_CIPHER_AES_GCM_128_IV_SIZE];
  74         unsigned char key[TLS_CIPHER_AES_GCM_128_KEY_SIZE];
  75         unsigned char salt[TLS_CIPHER_AES_GCM_128_SALT_SIZE];
  76         unsigned char rec_seq[TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE];
  77 };
  78
  79 #endif /* _UAPI_LINUX_TLS_H */