mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-22 10:34:55 +08:00
5879031423
include/net/tls.h is getting a little long, and is probably hard for driver authors to navigate. Split out the internals into a header which will live under net/tls/. While at it move some static inlines with a single user into the source files, add a few tls_ prefixes and fix spelling of 'proccess'. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
|
|
* Copyright (c) 2016-2017, Dave Watson <davejwatson@fb.com>. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/rcupdate.h>
|
|
#include <linux/spinlock.h>
|
|
#include <net/inet_connection_sock.h>
|
|
#include <net/tls.h>
|
|
#include <net/tls_toe.h>
|
|
|
|
#include "tls.h"
|
|
|
|
static LIST_HEAD(device_list);
|
|
static DEFINE_SPINLOCK(device_spinlock);
|
|
|
|
static void tls_toe_sk_destruct(struct sock *sk)
|
|
{
|
|
struct inet_connection_sock *icsk = inet_csk(sk);
|
|
struct tls_context *ctx = tls_get_ctx(sk);
|
|
|
|
ctx->sk_destruct(sk);
|
|
/* Free ctx */
|
|
rcu_assign_pointer(icsk->icsk_ulp_data, NULL);
|
|
tls_ctx_free(sk, ctx);
|
|
}
|
|
|
|
int tls_toe_bypass(struct sock *sk)
|
|
{
|
|
struct tls_toe_device *dev;
|
|
struct tls_context *ctx;
|
|
int rc = 0;
|
|
|
|
spin_lock_bh(&device_spinlock);
|
|
list_for_each_entry(dev, &device_list, dev_list) {
|
|
if (dev->feature && dev->feature(dev)) {
|
|
ctx = tls_ctx_create(sk);
|
|
if (!ctx)
|
|
goto out;
|
|
|
|
ctx->sk_destruct = sk->sk_destruct;
|
|
sk->sk_destruct = tls_toe_sk_destruct;
|
|
ctx->rx_conf = TLS_HW_RECORD;
|
|
ctx->tx_conf = TLS_HW_RECORD;
|
|
update_sk_prot(sk, ctx);
|
|
rc = 1;
|
|
break;
|
|
}
|
|
}
|
|
out:
|
|
spin_unlock_bh(&device_spinlock);
|
|
return rc;
|
|
}
|
|
|
|
void tls_toe_unhash(struct sock *sk)
|
|
{
|
|
struct tls_context *ctx = tls_get_ctx(sk);
|
|
struct tls_toe_device *dev;
|
|
|
|
spin_lock_bh(&device_spinlock);
|
|
list_for_each_entry(dev, &device_list, dev_list) {
|
|
if (dev->unhash) {
|
|
kref_get(&dev->kref);
|
|
spin_unlock_bh(&device_spinlock);
|
|
dev->unhash(dev, sk);
|
|
kref_put(&dev->kref, dev->release);
|
|
spin_lock_bh(&device_spinlock);
|
|
}
|
|
}
|
|
spin_unlock_bh(&device_spinlock);
|
|
ctx->sk_proto->unhash(sk);
|
|
}
|
|
|
|
int tls_toe_hash(struct sock *sk)
|
|
{
|
|
struct tls_context *ctx = tls_get_ctx(sk);
|
|
struct tls_toe_device *dev;
|
|
int err;
|
|
|
|
err = ctx->sk_proto->hash(sk);
|
|
spin_lock_bh(&device_spinlock);
|
|
list_for_each_entry(dev, &device_list, dev_list) {
|
|
if (dev->hash) {
|
|
kref_get(&dev->kref);
|
|
spin_unlock_bh(&device_spinlock);
|
|
err |= dev->hash(dev, sk);
|
|
kref_put(&dev->kref, dev->release);
|
|
spin_lock_bh(&device_spinlock);
|
|
}
|
|
}
|
|
spin_unlock_bh(&device_spinlock);
|
|
|
|
if (err)
|
|
tls_toe_unhash(sk);
|
|
return err;
|
|
}
|
|
|
|
void tls_toe_register_device(struct tls_toe_device *device)
|
|
{
|
|
spin_lock_bh(&device_spinlock);
|
|
list_add_tail(&device->dev_list, &device_list);
|
|
spin_unlock_bh(&device_spinlock);
|
|
}
|
|
EXPORT_SYMBOL(tls_toe_register_device);
|
|
|
|
void tls_toe_unregister_device(struct tls_toe_device *device)
|
|
{
|
|
spin_lock_bh(&device_spinlock);
|
|
list_del(&device->dev_list);
|
|
spin_unlock_bh(&device_spinlock);
|
|
}
|
|
EXPORT_SYMBOL(tls_toe_unregister_device);
|