LXR linux/tools/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/* Supported ciphers */
  55#define TLS_CIPHER_AES_GCM_128                          51
  56#define TLS_CIPHER_AES_GCM_128_IV_SIZE                  8
  57#define TLS_CIPHER_AES_GCM_128_KEY_SIZE         16
  58#define TLS_CIPHER_AES_GCM_128_SALT_SIZE                4
  59#define TLS_CIPHER_AES_GCM_128_TAG_SIZE         16
  60#define TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE             8
  61
  62#define TLS_SET_RECORD_TYPE     1
  63#define TLS_GET_RECORD_TYPE     2
  64
  65struct tls_crypto_info {
  66        __u16 version;
  67        __u16 cipher_type;
  68};
  69
  70struct tls12_crypto_info_aes_gcm_128 {
  71        struct tls_crypto_info info;
  72        unsigned char iv[TLS_CIPHER_AES_GCM_128_IV_SIZE];
  73        unsigned char key[TLS_CIPHER_AES_GCM_128_KEY_SIZE];
  74        unsigned char salt[TLS_CIPHER_AES_GCM_128_SALT_SIZE];
  75        unsigned char rec_seq[TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE];
  76};
  77
  78#endif /* _UAPI_LINUX_TLS_H */
  79