cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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tls_toe.h (3006B)

      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
     37struct 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 */
     62struct 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
     72int tls_toe_bypass(struct sock *sk);
     73int tls_toe_hash(struct sock *sk);
     74void tls_toe_unhash(struct sock *sk);
     75
     76void tls_toe_register_device(struct tls_toe_device *device);
     77void tls_toe_unregister_device(struct tls_toe_device *device);