From patchwork Fri Jul 17 06:23:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11669121 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 67B04161F for ; Fri, 17 Jul 2020 06:27:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 456D6208E4 for ; Fri, 17 Jul 2020 06:27:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="lXo2xnKU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727867AbgGQG0z (ORCPT ); Fri, 17 Jul 2020 02:26:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726665AbgGQGYM (ORCPT ); Fri, 17 Jul 2020 02:24:12 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3AA5C08C5DD; Thu, 16 Jul 2020 23:24:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=n2ODUYKF6/KbpzWzYvYsX0GmzUVJvLLKJNQfebeWuwA=; b=lXo2xnKUT2Zz9SodyFhrLMjmwS VsBB6iza3jroWdP5Sn+p2coUEpc32Tto0/NdonV2GZjjjUJnZLETAW3WTnagM/jxob5TZcgU+hzbC HBISjz1Y5i4/wF0ozC7HeooMkN7FAMd0Y4jhnbjoPpt4Ogg8KV+nfXWVILf8I4xn/BdcvhbNjRsu1 cPnwWdGNBM1POBS/rtQa/muCTLCz27XU1JsRtKuKYcIuY5l4x10POJ5OPwtPvqn58fQvtcxG+pzZJ As7pZmVBUqITScc1cuBvkoDpFDT3bNTUTeT2PRKmG/D9lFTHcT++szLQhUxkig3T6vQrGWEmS+ybo /sfdf1DA==; Received: from [2001:4bb8:105:4a81:3772:912d:640:e6c6] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jwJmq-00052J-2X; Fri, 17 Jul 2020 06:24:01 +0000 From: Christoph Hellwig To: "David S. Miller" Cc: Alexei Starovoitov , Daniel Borkmann , Chas Williams <3chas3@gmail.com>, Pablo Neira Ayuso , Jozsef Kadlecsik , Florian Westphal , Alexey Kuznetsov , Hideaki YOSHIFUJI , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, netfilter-devel@vger.kernel.org, linux-sctp@vger.kernel.org, linux-arch@vger.kernel.org, linux-bluetooth@vger.kernel.org, bridge@lists.linux-foundation.org, linux-can@vger.kernel.org, dccp@vger.kernel.org, linux-wpan@vger.kernel.org, mptcp@lists.01.org Subject: [PATCH 05/22] net: remove compat_sock_common_{get,set}sockopt Date: Fri, 17 Jul 2020 08:23:14 +0200 Message-Id: <20200717062331.691152-6-hch@lst.de> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200717062331.691152-1-hch@lst.de> References: <20200717062331.691152-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-wpan-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org Add the compat handling to sock_common_{get,set}sockopt instead, keyed of in_compat_syscall(). This allow to remove the now unused ->compat_{get,set}sockopt methods from struct proto_ops. Signed-off-by: Christoph Hellwig Acked-by: Matthieu Baerts Acked-by: Stefan Schmidt --- include/linux/net.h | 6 ------ include/net/sock.h | 4 ---- net/core/sock.c | 30 ++++++------------------------ net/dccp/ipv4.c | 4 ---- net/dccp/ipv6.c | 2 -- net/ieee802154/socket.c | 8 -------- net/ipv4/af_inet.c | 6 ------ net/ipv6/af_inet6.c | 4 ---- net/ipv6/ipv6_sockglue.c | 12 ++---------- net/ipv6/raw.c | 2 -- net/l2tp/l2tp_ip.c | 4 ---- net/l2tp/l2tp_ip6.c | 2 -- net/mptcp/protocol.c | 6 ------ net/phonet/socket.c | 8 -------- net/sctp/ipv6.c | 2 -- net/sctp/protocol.c | 4 ---- 16 files changed, 8 insertions(+), 96 deletions(-) diff --git a/include/linux/net.h b/include/linux/net.h index 016a9c5faa3479..858ff1d981540d 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -165,12 +165,6 @@ struct proto_ops { int optname, char __user *optval, unsigned int optlen); int (*getsockopt)(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen); -#ifdef CONFIG_COMPAT - int (*compat_setsockopt)(struct socket *sock, int level, - int optname, char __user *optval, unsigned int optlen); - int (*compat_getsockopt)(struct socket *sock, int level, - int optname, char __user *optval, int __user *optlen); -#endif void (*show_fdinfo)(struct seq_file *m, struct socket *sock); int (*sendmsg) (struct socket *sock, struct msghdr *m, size_t total_len); diff --git a/include/net/sock.h b/include/net/sock.h index 4bf8841651486d..1fd7cf5fc7516c 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1744,10 +1744,6 @@ int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags); int sock_common_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen); -int compat_sock_common_getsockopt(struct socket *sock, int level, - int optname, char __user *optval, int __user *optlen); -int compat_sock_common_setsockopt(struct socket *sock, int level, - int optname, char __user *optval, unsigned int optlen); void sk_common_release(struct sock *sk); diff --git a/net/core/sock.c b/net/core/sock.c index e085df79482520..018404d1762682 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -3199,23 +3199,14 @@ int sock_common_getsockopt(struct socket *sock, int level, int optname, { struct sock *sk = sock->sk; - return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen); -} -EXPORT_SYMBOL(sock_common_getsockopt); - #ifdef CONFIG_COMPAT -int compat_sock_common_getsockopt(struct socket *sock, int level, int optname, - char __user *optval, int __user *optlen) -{ - struct sock *sk = sock->sk; - - if (sk->sk_prot->compat_getsockopt != NULL) + if (in_compat_syscal() && sk->sk_prot->compat_getsockopt) return sk->sk_prot->compat_getsockopt(sk, level, optname, optval, optlen); +#endif return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen); } -EXPORT_SYMBOL(compat_sock_common_getsockopt); -#endif +EXPORT_SYMBOL(sock_common_getsockopt); int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags) @@ -3240,23 +3231,14 @@ int sock_common_setsockopt(struct socket *sock, int level, int optname, { struct sock *sk = sock->sk; - return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen); -} -EXPORT_SYMBOL(sock_common_setsockopt); - #ifdef CONFIG_COMPAT -int compat_sock_common_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) -{ - struct sock *sk = sock->sk; - - if (sk->sk_prot->compat_setsockopt != NULL) + if (in_compat_syscall() && sk->sk_prot->compat_setsockopt) return sk->sk_prot->compat_setsockopt(sk, level, optname, optval, optlen); +#endif return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen); } -EXPORT_SYMBOL(compat_sock_common_setsockopt); -#endif +EXPORT_SYMBOL(sock_common_setsockopt); void sk_common_release(struct sock *sk) { diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index a7e989919c5307..316cc5ac0da72b 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -999,10 +999,6 @@ static const struct proto_ops inet_dccp_ops = { .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; static struct inet_protosw dccp_v4_protosw = { diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 650187d688519c..b50f85a72cd5fc 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1083,8 +1083,6 @@ static const struct proto_ops inet6_dccp_ops = { .sendpage = sock_no_sendpage, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c index d93d4531aa9bc5..94ae9662133e30 100644 --- a/net/ieee802154/socket.c +++ b/net/ieee802154/socket.c @@ -423,10 +423,6 @@ static const struct proto_ops ieee802154_raw_ops = { .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; /* DGRAM Sockets (802.15.4 dataframes) */ @@ -986,10 +982,6 @@ static const struct proto_ops ieee802154_dgram_ops = { .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; /* Create a socket. Initialise the socket, blank the addresses diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index ff141d630bdf09..4307503a6f0b41 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1043,8 +1043,6 @@ const struct proto_ops inet_stream_ops = { .sendpage_locked = tcp_sendpage_locked, .peek_len = tcp_peek_len, #ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, .compat_ioctl = inet_compat_ioctl, #endif .set_rcvlowat = tcp_set_rcvlowat, @@ -1073,8 +1071,6 @@ const struct proto_ops inet_dgram_ops = { .sendpage = inet_sendpage, .set_peek_off = sk_set_peek_off, #ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, .compat_ioctl = inet_compat_ioctl, #endif }; @@ -1105,8 +1101,6 @@ static const struct proto_ops inet_sockraw_ops = { .mmap = sock_no_mmap, .sendpage = inet_sendpage, #ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, .compat_ioctl = inet_compat_ioctl, #endif }; diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index b304b882e0312f..0306509ab06374 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -688,8 +688,6 @@ const struct proto_ops inet6_stream_ops = { .peek_len = tcp_peek_len, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif .set_rcvlowat = tcp_set_rcvlowat, }; @@ -717,8 +715,6 @@ const struct proto_ops inet6_dgram_ops = { .set_peek_off = sk_set_peek_off, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 20576e87a5f7e8..6ab44ec2c369da 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -914,12 +914,8 @@ int compat_ipv6_setsockopt(struct sock *sk, int level, int optname, { int err; - if (level == SOL_IP && sk->sk_type != SOCK_RAW) { - if (udp_prot.compat_setsockopt != NULL) - return udp_prot.compat_setsockopt(sk, level, optname, - optval, optlen); + if (level == SOL_IP && sk->sk_type != SOCK_RAW) return udp_prot.setsockopt(sk, level, optname, optval, optlen); - } if (level != SOL_IPV6) return -ENOPROTOOPT; @@ -1480,12 +1476,8 @@ int compat_ipv6_getsockopt(struct sock *sk, int level, int optname, { int err; - if (level == SOL_IP && sk->sk_type != SOCK_RAW) { - if (udp_prot.compat_getsockopt != NULL) - return udp_prot.compat_getsockopt(sk, level, optname, - optval, optlen); + if (level == SOL_IP && sk->sk_type != SOCK_RAW) return udp_prot.getsockopt(sk, level, optname, optval, optlen); - } if (level != SOL_IPV6) return -ENOPROTOOPT; diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 8ef5a7b30524fd..e23c6b46175870 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -1378,8 +1378,6 @@ const struct proto_ops inet6_sockraw_ops = { .sendpage = sock_no_sendpage, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 955662a6dee754..f8d7412cfb3d37 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -638,10 +638,6 @@ static const struct proto_ops l2tp_ip_ops = { .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; static struct inet_protosw l2tp_ip_protosw = { diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index 526ed2c24dd5e0..2cdc0b7a7a43c3 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -773,8 +773,6 @@ static const struct proto_ops l2tp_ip6_ops = { .sendpage = sock_no_sendpage, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index dbe43e0cd734e4..f0b0b503c2628d 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -2166,10 +2166,6 @@ static const struct proto_ops mptcp_stream_ops = { .recvmsg = inet_recvmsg, .mmap = sock_no_mmap, .sendpage = inet_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; static struct inet_protosw mptcp_protosw = { @@ -2222,8 +2218,6 @@ static const struct proto_ops mptcp_v6_stream_ops = { .sendpage = inet_sendpage, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/phonet/socket.c b/net/phonet/socket.c index 76d499f6af9ab3..87c60f83c18061 100644 --- a/net/phonet/socket.c +++ b/net/phonet/socket.c @@ -441,10 +441,6 @@ const struct proto_ops phonet_dgram_ops = { .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, .getsockopt = sock_no_getsockopt, -#ifdef CONFIG_COMPAT - .compat_setsockopt = sock_no_setsockopt, - .compat_getsockopt = sock_no_getsockopt, -#endif .sendmsg = pn_socket_sendmsg, .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, @@ -466,10 +462,6 @@ const struct proto_ops phonet_stream_ops = { .shutdown = sock_no_shutdown, .setsockopt = sock_common_setsockopt, .getsockopt = sock_common_getsockopt, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif .sendmsg = pn_socket_sendmsg, .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index ccfa0ab3e7f481..ebda31b7747d08 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -1033,8 +1033,6 @@ static const struct proto_ops inet6_seqpacket_ops = { .mmap = sock_no_mmap, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index cde29f3c7fb3c4..8d25cc464efdf3 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -1036,10 +1036,6 @@ static const struct proto_ops inet_seqpacket_ops = { .recvmsg = inet_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; /* Registration with AF_INET family. */