From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp
---
kernel/net/nfc/llcp_sock.c | 35 +++++++++++++----------------------
1 files changed, 13 insertions(+), 22 deletions(-)
diff --git a/kernel/net/nfc/llcp_sock.c b/kernel/net/nfc/llcp_sock.c
index 605d744..0b93a17 100644
--- a/kernel/net/nfc/llcp_sock.c
+++ b/kernel/net/nfc/llcp_sock.c
@@ -1,18 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#define pr_fmt(fmt) "llcp: %s: " fmt, __func__
@@ -236,7 +224,7 @@
}
static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname,
- char __user *optval, unsigned int optlen)
+ sockptr_t optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
struct nfc_llcp_sock *llcp_sock = nfc_llcp_sock(sk);
@@ -259,7 +247,7 @@
break;
}
- if (get_user(opt, (u32 __user *) optval)) {
+ if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
err = -EFAULT;
break;
}
@@ -281,7 +269,7 @@
break;
}
- if (get_user(opt, (u32 __user *) optval)) {
+ if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
err = -EFAULT;
break;
}
@@ -743,6 +731,10 @@
llcp_sock->service_name = kmemdup(addr->service_name,
llcp_sock->service_name_len,
GFP_KERNEL);
+ if (!llcp_sock->service_name) {
+ ret = -ENOMEM;
+ goto sock_llcp_release;
+ }
nfc_llcp_sock_link(&local->connecting_sockets, sk);
@@ -762,13 +754,14 @@
return ret;
sock_unlink:
- nfc_llcp_put_ssap(local, llcp_sock->ssap);
- nfc_llcp_local_put(llcp_sock->local);
- llcp_sock->local = NULL;
-
nfc_llcp_sock_unlink(&local->connecting_sockets, sk);
kfree(llcp_sock->service_name);
llcp_sock->service_name = NULL;
+
+sock_llcp_release:
+ nfc_llcp_put_ssap(local, llcp_sock->ssap);
+ nfc_llcp_local_put(llcp_sock->local);
+ llcp_sock->local = NULL;
put_dev:
nfc_put_device(dev);
@@ -949,8 +942,6 @@
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
- .setsockopt = sock_no_setsockopt,
- .getsockopt = sock_no_getsockopt,
.sendmsg = sock_no_sendmsg,
.recvmsg = llcp_sock_recvmsg,
.mmap = sock_no_mmap,
--
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