include/uapi/linux/tls.h

   1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
   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 #define TLS_RX                  2       /* Set receive parameters */
  42
  43 /* Supported versions */
  44 #define TLS_VERSION_MINOR(ver)  ((ver) & 0xFF)
  45 #define TLS_VERSION_MAJOR(ver)  (((ver) >> 8) & 0xFF)
  46
  47 #define TLS_VERSION_NUMBER(id)  ((((id##_VERSION_MAJOR) & 0xFF) << 8) | \
  48                                  ((id##_VERSION_MINOR) & 0xFF))
  49
  50 #define TLS_1_2_VERSION_MAJOR   0x3
  51 #define TLS_1_2_VERSION_MINOR   0x3
  52 #define TLS_1_2_VERSION         TLS_VERSION_NUMBER(TLS_1_2)
  53
  54 #define TLS_1_3_VERSION_MAJOR   0x3
  55 #define TLS_1_3_VERSION_MINOR   0x4
  56 #define TLS_1_3_VERSION         TLS_VERSION_NUMBER(TLS_1_3)
  57
  58 /* Supported ciphers */
  59 #define TLS_CIPHER_AES_GCM_128                          51
  60 #define TLS_CIPHER_AES_GCM_128_IV_SIZE                  8
  61 #define TLS_CIPHER_AES_GCM_128_KEY_SIZE         16
  62 #define TLS_CIPHER_AES_GCM_128_SALT_SIZE                4
  63 #define TLS_CIPHER_AES_GCM_128_TAG_SIZE         16
  64 #define TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE             8
  65
  66 #define TLS_CIPHER_AES_GCM_256                          52
  67 #define TLS_CIPHER_AES_GCM_256_IV_SIZE                  8
  68 #define TLS_CIPHER_AES_GCM_256_KEY_SIZE         32
  69 #define TLS_CIPHER_AES_GCM_256_SALT_SIZE                4
  70 #define TLS_CIPHER_AES_GCM_256_TAG_SIZE         16
  71 #define TLS_CIPHER_AES_GCM_256_REC_SEQ_SIZE             8
  72
  73 #define TLS_CIPHER_AES_CCM_128                          53
  74 #define TLS_CIPHER_AES_CCM_128_IV_SIZE                  8
  75 #define TLS_CIPHER_AES_CCM_128_KEY_SIZE         16
  76 #define TLS_CIPHER_AES_CCM_128_SALT_SIZE                4
  77 #define TLS_CIPHER_AES_CCM_128_TAG_SIZE         16
  78 #define TLS_CIPHER_AES_CCM_128_REC_SEQ_SIZE             8
  79
  80 #define TLS_CIPHER_CHACHA20_POLY1305                    54
  81 #define TLS_CIPHER_CHACHA20_POLY1305_IV_SIZE            12
  82 #define TLS_CIPHER_CHACHA20_POLY1305_KEY_SIZE   32
  83 #define TLS_CIPHER_CHACHA20_POLY1305_SALT_SIZE          0
  84 #define TLS_CIPHER_CHACHA20_POLY1305_TAG_SIZE   16
  85 #define TLS_CIPHER_CHACHA20_POLY1305_REC_SEQ_SIZE       8
  86
  87 #define TLS_SET_RECORD_TYPE     1
  88 #define TLS_GET_RECORD_TYPE     2
  89
  90 struct tls_crypto_info {
  91         __u16 version;
  92         __u16 cipher_type;
  93 };
  94
  95 struct tls12_crypto_info_aes_gcm_128 {
  96         struct tls_crypto_info info;
  97         unsigned char iv[TLS_CIPHER_AES_GCM_128_IV_SIZE];
  98         unsigned char key[TLS_CIPHER_AES_GCM_128_KEY_SIZE];
  99         unsigned char salt[TLS_CIPHER_AES_GCM_128_SALT_SIZE];
 100         unsigned char rec_seq[TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE];
 101 };
 102
 103 struct tls12_crypto_info_aes_gcm_256 {
 104         struct tls_crypto_info info;
 105         unsigned char iv[TLS_CIPHER_AES_GCM_256_IV_SIZE];
 106         unsigned char key[TLS_CIPHER_AES_GCM_256_KEY_SIZE];
 107         unsigned char salt[TLS_CIPHER_AES_GCM_256_SALT_SIZE];
 108         unsigned char rec_seq[TLS_CIPHER_AES_GCM_256_REC_SEQ_SIZE];
 109 };
 110
 111 struct tls12_crypto_info_aes_ccm_128 {
 112         struct tls_crypto_info info;
 113         unsigned char iv[TLS_CIPHER_AES_CCM_128_IV_SIZE];
 114         unsigned char key[TLS_CIPHER_AES_CCM_128_KEY_SIZE];
 115         unsigned char salt[TLS_CIPHER_AES_CCM_128_SALT_SIZE];
 116         unsigned char rec_seq[TLS_CIPHER_AES_CCM_128_REC_SEQ_SIZE];
 117 };
 118
 119 struct tls12_crypto_info_chacha20_poly1305 {
 120         struct tls_crypto_info info;
 121         unsigned char iv[TLS_CIPHER_CHACHA20_POLY1305_IV_SIZE];
 122         unsigned char key[TLS_CIPHER_CHACHA20_POLY1305_KEY_SIZE];
 123         unsigned char salt[TLS_CIPHER_CHACHA20_POLY1305_SALT_SIZE];
 124         unsigned char rec_seq[TLS_CIPHER_CHACHA20_POLY1305_REC_SEQ_SIZE];
 125 };
 126
 127 enum {
 128         TLS_INFO_UNSPEC,
 129         TLS_INFO_VERSION,
 130         TLS_INFO_CIPHER,
 131         TLS_INFO_TXCONF,
 132         TLS_INFO_RXCONF,
 133         __TLS_INFO_MAX,
 134 };
 135 #define TLS_INFO_MAX (__TLS_INFO_MAX - 1)
 136
 137 #define TLS_CONF_BASE 1
 138 #define TLS_CONF_SW 2
 139 #define TLS_CONF_HW 3
 140 #define TLS_CONF_HW_RECORD 4
 141
 142 #endif /* _UAPI_LINUX_TLS_H */