1 | /* |
2 | * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved. |
3 | * Copyright (c) 2016-2017, Dave Watson <davejwatson@fb.com>. 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 | #include <linux/kref.h> |
35 | #include <linux/list.h> |
36 | |
37 | struct sock; |
38 | |
39 | #define TLS_TOE_DEVICE_NAME_MAX 32 |
40 | |
41 | /* |
42 | * This structure defines the routines for Inline TLS driver. |
43 | * The following routines are optional and filled with a |
44 | * null pointer if not defined. |
45 | * |
46 | * @name: Its the name of registered Inline tls device |
47 | * @dev_list: Inline tls device list |
48 | * int (*feature)(struct tls_toe_device *device); |
49 | * Called to return Inline TLS driver capability |
50 | * |
51 | * int (*hash)(struct tls_toe_device *device, struct sock *sk); |
52 | * This function sets Inline driver for listen and program |
53 | * device specific functioanlity as required |
54 | * |
55 | * void (*unhash)(struct tls_toe_device *device, struct sock *sk); |
56 | * This function cleans listen state set by Inline TLS driver |
57 | * |
58 | * void (*release)(struct kref *kref); |
59 | * Release the registered device and allocated resources |
60 | * @kref: Number of reference to tls_toe_device |
61 | */ |
62 | struct tls_toe_device { |
63 | char name[TLS_TOE_DEVICE_NAME_MAX]; |
64 | struct list_head dev_list; |
65 | int (*feature)(struct tls_toe_device *device); |
66 | int (*hash)(struct tls_toe_device *device, struct sock *sk); |
67 | void (*unhash)(struct tls_toe_device *device, struct sock *sk); |
68 | void (*release)(struct kref *kref); |
69 | struct kref kref; |
70 | }; |
71 | |
72 | int tls_toe_bypass(struct sock *sk); |
73 | int tls_toe_hash(struct sock *sk); |
74 | void tls_toe_unhash(struct sock *sk); |
75 | |
76 | void tls_toe_register_device(struct tls_toe_device *device); |
77 | void tls_toe_unregister_device(struct tls_toe_device *device); |
78 | |