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
65 struct tls_crypto_info {
66 __u16 version;
67 __u16 cipher_type;
68 };
69
70 struct 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 */