diff options
Diffstat (limited to 'net/nfc/rawsock.c')
| -rw-r--r-- | net/nfc/rawsock.c | 39 |
1 files changed, 14 insertions, 25 deletions
diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c index e2188deb08dc..b049022399ae 100644 --- a/net/nfc/rawsock.c +++ b/net/nfc/rawsock.c @@ -1,22 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2011 Instituto Nokia de Tecnologia * * Authors: * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> * Lauro Ramos Venancio <lauro.venancio@openbossa.org> - * - * 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) KBUILD_MODNAME ": %s: " fmt, __func__ @@ -24,6 +12,7 @@ #include <net/tcp_states.h> #include <linux/nfc.h> #include <linux/export.h> +#include <linux/kcov.h> #include "nfc.h" @@ -61,7 +50,7 @@ static void rawsock_report_error(struct sock *sk, int err) sk->sk_shutdown = SHUTDOWN_MASK; sk->sk_err = -err; - sk->sk_error_report(sk); + sk_error_report(sk); rawsock_write_queue_purge(sk); } @@ -84,7 +73,7 @@ static int rawsock_release(struct socket *sock) return 0; } -static int rawsock_connect(struct socket *sock, struct sockaddr *_addr, +static int rawsock_connect(struct socket *sock, struct sockaddr_unsized *_addr, int len, int flags) { struct sock *sk = sock->sk; @@ -117,7 +106,7 @@ static int rawsock_connect(struct socket *sock, struct sockaddr *_addr, if (addr->target_idx > dev->target_next_idx - 1 || addr->target_idx < dev->target_next_idx - dev->n_targets) { rc = -EINVAL; - goto error; + goto put_dev; } rc = nfc_activate_target(dev, addr->target_idx, addr->nfc_protocol); @@ -152,7 +141,7 @@ static void rawsock_data_exchange_complete(void *context, struct sk_buff *skb, { struct sock *sk = (struct sock *) context; - BUG_ON(in_irq()); + BUG_ON(in_hardirq()); pr_debug("sk=%p err=%d\n", sk, err); @@ -201,6 +190,7 @@ static void rawsock_tx_work(struct work_struct *work) } skb = skb_dequeue(&sk->sk_write_queue); + kcov_remote_start_common(skb_get_kcov_handle(skb)); sock_hold(sk); rc = nfc_data_exchange(dev, target_idx, skb, @@ -209,6 +199,7 @@ static void rawsock_tx_work(struct work_struct *work) rawsock_report_error(sk, rc); sock_put(sk); } + kcov_remote_stop(); } static int rawsock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) @@ -250,7 +241,6 @@ static int rawsock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) static int rawsock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, int flags) { - int noblock = flags & MSG_DONTWAIT; struct sock *sk = sock->sk; struct sk_buff *skb; int copied; @@ -258,7 +248,7 @@ static int rawsock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, pr_debug("sock=%p sk=%p len=%zu flags=%d\n", sock, sk, len, flags); - skb = skb_recv_datagram(sk, flags, noblock, &rc); + skb = skb_recv_datagram(sk, flags, &rc); if (!skb) return rc; @@ -288,8 +278,6 @@ static const struct proto_ops rawsock_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = rawsock_sendmsg, .recvmsg = rawsock_recvmsg, .mmap = sock_no_mmap, @@ -308,8 +296,6 @@ static const struct proto_ops rawsock_raw_ops = { .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 = rawsock_recvmsg, .mmap = sock_no_mmap, @@ -344,10 +330,13 @@ static int rawsock_create(struct net *net, struct socket *sock, if ((sock->type != SOCK_SEQPACKET) && (sock->type != SOCK_RAW)) return -ESOCKTNOSUPPORT; - if (sock->type == SOCK_RAW) + if (sock->type == SOCK_RAW) { + if (!ns_capable(net->user_ns, CAP_NET_RAW)) + return -EPERM; sock->ops = &rawsock_raw_ops; - else + } else { sock->ops = &rawsock_ops; + } sk = sk_alloc(net, PF_NFC, GFP_ATOMIC, nfc_proto->proto, kern); if (!sk) |