From patchwork Thu Jul 23 06:09:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11679975 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 DA19B13A4 for ; Thu, 23 Jul 2020 06:11:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C15B8206C1 for ; Thu, 23 Jul 2020 06:11:06 +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="MjJqnKUL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728046AbgGWGKx (ORCPT ); Thu, 23 Jul 2020 02:10:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56540 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727779AbgGWGJy (ORCPT ); Thu, 23 Jul 2020 02:09:54 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 845FAC0619E2; Wed, 22 Jul 2020 23:09:54 -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=B8ko5pqj9E5RJoiDMAT4LWCptgAPGsTT9yGUOg+zWgY=; b=MjJqnKULSWCVH3PByQuNM/qNXX HtMB9dNpDBTWgJugcO7sE/5ko9tHLFvQQR2XB+seIcDgNTq0BIUT+jAS9YnxntKaMacKvA3QzLDz+ zGlGK28S4DDyYfe4AW2lZ7egTVp764ymWynHmgHFOMbVH5dRl56eBZKRzkiXR6tj4nh5pm3fHpJ0C D7KIViHus2vbs8lwyCCqFoTyuA7CUg8gUDjDutcOgepeoe8H4V4VclrD+KVF5iFtHs5JYWGRp57sI ctRlfcOu0L+2rfrA9FFOOVRguL7CObocmaxk45GM10m0ZW5jysNmi0VmrX1q8LwS7ICnZPKjKkGuJ piwC5ebg==; Received: from [2001:4bb8:18c:2acc:91df:aae8:fa3b:de9c] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jyUQG-0003oW-J1; Thu, 23 Jul 2020 06:09:41 +0000 From: Christoph Hellwig To: "David S. Miller" , Jakub Kicinski , Alexei Starovoitov , Daniel Borkmann , Alexey Kuznetsov , Hideaki YOSHIFUJI , Eric Dumazet Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, netfilter-devel@vger.kernel.org, coreteam@netfilter.org, linux-sctp@vger.kernel.org, linux-hams@vger.kernel.org, linux-bluetooth@vger.kernel.org, bridge@lists.linux-foundation.org, linux-can@vger.kernel.org, dccp@vger.kernel.org, linux-decnet-user@lists.sourceforge.net, linux-wpan@vger.kernel.org, linux-s390@vger.kernel.org, mptcp@lists.01.org, lvs-devel@vger.kernel.org, rds-devel@oss.oracle.com, linux-afs@lists.infradead.org, tipc-discussion@lists.sourceforge.net, linux-x25@vger.kernel.org Subject: [PATCH 22/26] net/udp: switch udp_lib_setsockopt to sockptr_t Date: Thu, 23 Jul 2020 08:09:04 +0200 Message-Id: <20200723060908.50081-23-hch@lst.de> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200723060908.50081-1-hch@lst.de> References: <20200723060908.50081-1-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 Pass a sockptr_t to prepare for set_fs-less handling of the kernel pointer from bpf-cgroup. Signed-off-by: Christoph Hellwig --- include/net/udp.h | 2 +- net/ipv4/udp.c | 7 ++++--- net/ipv6/udp.c | 3 ++- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/include/net/udp.h b/include/net/udp.h index 17a9e86a807638..295d52a7359827 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -306,7 +306,7 @@ struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb, int udp_lib_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); int udp_lib_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen, + sockptr_t optval, unsigned int optlen, int (*push_pending_frames)(struct sock *)); struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport, __be32 daddr, __be16 dport, int dif); diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index bb95cddcb040a6..c6cb2d09dbc75e 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2588,7 +2588,7 @@ void udp_destroy_sock(struct sock *sk) * Socket option code for UDP */ int udp_lib_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen, + sockptr_t optval, unsigned int optlen, int (*push_pending_frames)(struct sock *)) { struct udp_sock *up = udp_sk(sk); @@ -2599,7 +2599,7 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; valbool = val ? 1 : 0; @@ -2707,7 +2707,8 @@ int udp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) { if (level == SOL_UDP || level == SOL_UDPLITE) - return udp_lib_setsockopt(sk, level, optname, optval, optlen, + return udp_lib_setsockopt(sk, level, optname, + USER_SOCKPTR(optval), optlen, udp_push_pending_frames); return ip_setsockopt(sk, level, optname, optval, optlen); } diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 7c1143feb2bf7e..2df1e6c9d7cbf6 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1622,7 +1622,8 @@ int udpv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) { if (level == SOL_UDP || level == SOL_UDPLITE) - return udp_lib_setsockopt(sk, level, optname, optval, optlen, + return udp_lib_setsockopt(sk, level, optname, + USER_SOCKPTR(optval), optlen, udp_v6_push_pending_frames); return ipv6_setsockopt(sk, level, optname, optval, optlen); }