From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9E62DC2D0FE for ; Wed, 13 May 2020 06:29:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7D10F206A5 for ; Wed, 13 May 2020 06:29:58 +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="pxhQaa1U" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732172AbgEMG3E (ORCPT ); Wed, 13 May 2020 02:29:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732108AbgEMG3D (ORCPT ); Wed, 13 May 2020 02:29:03 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D1DBC061A0E; Tue, 12 May 2020 23:29:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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=qKkhwwH9olQLFLmlxkgq6ArpL5LZdN1qvB6lNx/Jjh4=; b=pxhQaa1U3KdOYtasAWRKCqw1OY h9pkNE8ZzmKVddyFpFJPgmglClzT+hi+8ZoptLUGpUcB4Hrq5tRvsDhx7+fgOE6dEDeo6YnDV1Vp2 UOfi6F+biZdnG6q9Ovti2wad8/1htWsC0Bd55R2/v3BkHAxCsP1BUyO2stG7UlAXQtesrpqXCl/A6 KnVqnWKYly8p7osClxbUay1UAGC6MiZx4eWsGZB8dF7G1JhMbRFOgxXKMI2kto3djEyr16ajaBxRd pmAj+oMJI7ZKFntig/ZE+zERUM7tHZrD8dYQxcWddYZhMxaoHUlULvr7C7Id1uGdjLvSBsLgk+ktF zXqdP1ZQ==; Received: from [2001:4bb8:180:9d3f:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYks6-0004pR-63; Wed, 13 May 2020 06:28:02 +0000 From: Christoph Hellwig To: "David S. Miller" , Jakub Kicinski Cc: Eric Dumazet , Alexey Kuznetsov , Hideaki YOSHIFUJI , Vlad Yasevich , Neil Horman , Marcelo Ricardo Leitner , Jon Maloy , Ying Xue , drbd-dev@lists.linbit.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-nvme@lists.infradead.org, target-devel@vger.kernel.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, cluster-devel@redhat.com, ocfs2-devel@oss.oracle.com, netdev@vger.kernel.org, linux-sctp@vger.kernel.org, ceph-devel@vger.kernel.org, rds-devel@oss.oracle.com, linux-nfs@vger.kernel.org Subject: [PATCH 23/33] ipv6: add ip6_sock_set_recverr Date: Wed, 13 May 2020 08:26:38 +0200 Message-Id: <20200513062649.2100053-24-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200513062649.2100053-1-hch@lst.de> References: <20200513062649.2100053-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Add a helper to directly set the IPV6_RECVERR sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig --- include/net/ipv6.h | 1 + net/ipv6/ipv6_sockglue.c | 10 ++++++++++ net/rxrpc/local_object.c | 10 ++-------- 3 files changed, 13 insertions(+), 8 deletions(-) diff --git a/include/net/ipv6.h b/include/net/ipv6.h index e24b59201a00d..69bc1651aaef8 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -1176,5 +1176,6 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr); int ip6_sock_set_v6only(struct sock *sk, bool val); +void ip6_sock_set_recverr(struct sock *sk, bool val); #endif /* _NET_IPV6_H */ diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index f26224bb3e098..3c67626b6f5a9 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -147,6 +147,16 @@ int ip6_sock_set_v6only(struct sock *sk, bool val) } EXPORT_SYMBOL(ip6_sock_set_v6only); +void ip6_sock_set_recverr(struct sock *sk, bool val) +{ + lock_sock(sk); + inet6_sk(sk)->recverr = val; + if (!val) + skb_queue_purge(&sk->sk_error_queue); + release_sock(sk); +} +EXPORT_SYMBOL(ip6_sock_set_recverr); + static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) { diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 20236ddecd2ef..5e356a63aa791 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -107,7 +107,7 @@ static struct rxrpc_local *rxrpc_alloc_local(struct rxrpc_net *rxnet, static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) { struct sock *usk; - int ret, opt; + int ret; _enter("%p{%d,%d}", local, local->srx.transport_type, local->srx.transport.family); @@ -157,13 +157,7 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) switch (local->srx.transport.family) { case AF_INET6: /* we want to receive ICMPv6 errors */ - opt = 1; - ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_RECVERR, - (char *) &opt, sizeof(opt)); - if (ret < 0) { - _debug("setsockopt failed"); - goto error; - } + ip6_sock_set_recverr(local->socket->sk, true); /* Fall through and set IPv4 options too otherwise we don't get * errors from IPv4 packets sent through the IPv6 socket. -- 2.26.2 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Date: Wed, 13 May 2020 06:26:38 +0000 Subject: [PATCH 23/33] ipv6: add ip6_sock_set_recverr Message-Id: <20200513062649.2100053-24-hch@lst.de> List-Id: References: <20200513062649.2100053-1-hch@lst.de> In-Reply-To: <20200513062649.2100053-1-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "David S. Miller" , Jakub Kicinski Cc: Eric Dumazet , Alexey Kuznetsov , Hideaki YOSHIFUJI , Vlad Yasevich , Neil Horman , Marcelo Ricardo Leitner , Jon Maloy , Ying Xue , drbd-dev@lists.linbit.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-nvme@lists.infradead.org, target-devel@vger.kernel.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, cluster-devel@redhat.com, ocfs2-devel@oss.oracle.com, netdev@vger.kernel.org, linux-sctp@vger.kernel.org, ceph-devel@vger.kernel.org, rds-devel@oss.oracle.com, linux-nfs@vger.kernel.org Add a helper to directly set the IPV6_RECVERR sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig --- include/net/ipv6.h | 1 + net/ipv6/ipv6_sockglue.c | 10 ++++++++++ net/rxrpc/local_object.c | 10 ++-------- 3 files changed, 13 insertions(+), 8 deletions(-) diff --git a/include/net/ipv6.h b/include/net/ipv6.h index e24b59201a00d..69bc1651aaef8 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -1176,5 +1176,6 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr); int ip6_sock_set_v6only(struct sock *sk, bool val); +void ip6_sock_set_recverr(struct sock *sk, bool val); #endif /* _NET_IPV6_H */ diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index f26224bb3e098..3c67626b6f5a9 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -147,6 +147,16 @@ int ip6_sock_set_v6only(struct sock *sk, bool val) } EXPORT_SYMBOL(ip6_sock_set_v6only); +void ip6_sock_set_recverr(struct sock *sk, bool val) +{ + lock_sock(sk); + inet6_sk(sk)->recverr = val; + if (!val) + skb_queue_purge(&sk->sk_error_queue); + release_sock(sk); +} +EXPORT_SYMBOL(ip6_sock_set_recverr); + static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) { diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 20236ddecd2ef..5e356a63aa791 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -107,7 +107,7 @@ static struct rxrpc_local *rxrpc_alloc_local(struct rxrpc_net *rxnet, static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) { struct sock *usk; - int ret, opt; + int ret; _enter("%p{%d,%d}", local, local->srx.transport_type, local->srx.transport.family); @@ -157,13 +157,7 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) switch (local->srx.transport.family) { case AF_INET6: /* we want to receive ICMPv6 errors */ - opt = 1; - ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_RECVERR, - (char *) &opt, sizeof(opt)); - if (ret < 0) { - _debug("setsockopt failed"); - goto error; - } + ip6_sock_set_recverr(local->socket->sk, true); /* Fall through and set IPv4 options too otherwise we don't get * errors from IPv4 packets sent through the IPv6 socket. -- 2.26.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BD605C2D0F8 for ; Wed, 13 May 2020 06:32:05 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5651D20718 for ; Wed, 13 May 2020 06:32:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="fk5clIIp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5651D20718 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=MySfmbXJ9lEuBuHpG34te3OUEd5NN6sPUNKsCxOjap8=; b=fk5clIIpd/GgpH Zj7Mcbxdb3V2ZnWbAlyZW2W1f2Fz14g6nBN9MnL3Pxk+Ad6RJ87XcQwsujRMlCw+gmR+AV9C45fli lhqp843OfFaNUQhlvUnec0PRGvec/rbMcVczkkTd44xs91gvngBLx/G8uqOhk2Hl911wnq0hutve/ m2f0krpPZ2Y1WnjKx0Hacg2d2mF5DuvRKDORVvH/6h387yuprlrt8NpYoUQTgczT6VJpwe7XXLX2f s5DW28szXiimqz1kFrI7wQGCpQRcE3I/s/tcc6kKNm+b93pvRY7sj+fcMZlHgWtPWZG9rZz5fx5IP XVgnuLYxNpveSJGd3yzA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYkvy-0002Gq-St; Wed, 13 May 2020 06:32:02 +0000 Received: from [2001:4bb8:180:9d3f:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYks6-0004pR-63; Wed, 13 May 2020 06:28:02 +0000 From: Christoph Hellwig To: "David S. Miller" , Jakub Kicinski Subject: [PATCH 23/33] ipv6: add ip6_sock_set_recverr Date: Wed, 13 May 2020 08:26:38 +0200 Message-Id: <20200513062649.2100053-24-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200513062649.2100053-1-hch@lst.de> References: <20200513062649.2100053-1-hch@lst.de> MIME-Version: 1.0 X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marcelo Ricardo Leitner , Eric Dumazet , linux-nvme@lists.infradead.org, linux-sctp@vger.kernel.org, target-devel@vger.kernel.org, linux-afs@lists.infradead.org, drbd-dev@lists.linbit.com, linux-cifs@vger.kernel.org, rds-devel@oss.oracle.com, linux-rdma@vger.kernel.org, cluster-devel@redhat.com, Alexey Kuznetsov , linux-block@vger.kernel.org, ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org, Neil Horman , Hideaki YOSHIFUJI , netdev@vger.kernel.org, Vlad Yasevich , linux-kernel@vger.kernel.org, Jon Maloy , Ying Xue , ocfs2-devel@oss.oracle.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Add a helper to directly set the IPV6_RECVERR sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig --- include/net/ipv6.h | 1 + net/ipv6/ipv6_sockglue.c | 10 ++++++++++ net/rxrpc/local_object.c | 10 ++-------- 3 files changed, 13 insertions(+), 8 deletions(-) diff --git a/include/net/ipv6.h b/include/net/ipv6.h index e24b59201a00d..69bc1651aaef8 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -1176,5 +1176,6 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr); int ip6_sock_set_v6only(struct sock *sk, bool val); +void ip6_sock_set_recverr(struct sock *sk, bool val); #endif /* _NET_IPV6_H */ diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index f26224bb3e098..3c67626b6f5a9 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -147,6 +147,16 @@ int ip6_sock_set_v6only(struct sock *sk, bool val) } EXPORT_SYMBOL(ip6_sock_set_v6only); +void ip6_sock_set_recverr(struct sock *sk, bool val) +{ + lock_sock(sk); + inet6_sk(sk)->recverr = val; + if (!val) + skb_queue_purge(&sk->sk_error_queue); + release_sock(sk); +} +EXPORT_SYMBOL(ip6_sock_set_recverr); + static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) { diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 20236ddecd2ef..5e356a63aa791 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -107,7 +107,7 @@ static struct rxrpc_local *rxrpc_alloc_local(struct rxrpc_net *rxnet, static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) { struct sock *usk; - int ret, opt; + int ret; _enter("%p{%d,%d}", local, local->srx.transport_type, local->srx.transport.family); @@ -157,13 +157,7 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) switch (local->srx.transport.family) { case AF_INET6: /* we want to receive ICMPv6 errors */ - opt = 1; - ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_RECVERR, - (char *) &opt, sizeof(opt)); - if (ret < 0) { - _debug("setsockopt failed"); - goto error; - } + ip6_sock_set_recverr(local->socket->sk, true); /* Fall through and set IPv4 options too otherwise we don't get * errors from IPv4 packets sent through the IPv6 socket. -- 2.26.2 _______________________________________________ linux-nvme mailing list linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Date: Wed, 13 May 2020 08:26:38 +0200 Subject: [Ocfs2-devel] [PATCH 23/33] ipv6: add ip6_sock_set_recverr In-Reply-To: <20200513062649.2100053-1-hch@lst.de> References: <20200513062649.2100053-1-hch@lst.de> Message-ID: <20200513062649.2100053-24-hch@lst.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "David S. Miller" , Jakub Kicinski Cc: Eric Dumazet , Alexey Kuznetsov , Hideaki YOSHIFUJI , Vlad Yasevich , Neil Horman , Marcelo Ricardo Leitner , Jon Maloy , Ying Xue , drbd-dev@lists.linbit.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-nvme@lists.infradead.org, target-devel@vger.kernel.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, cluster-devel@redhat.com, ocfs2-devel@oss.oracle.com, netdev@vger.kernel.org, linux-sctp@vger.kernel.org, ceph-devel@vger.kernel.org, rds-devel@oss.oracle.com, linux-nfs@vger.kernel.org Add a helper to directly set the IPV6_RECVERR sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig --- include/net/ipv6.h | 1 + net/ipv6/ipv6_sockglue.c | 10 ++++++++++ net/rxrpc/local_object.c | 10 ++-------- 3 files changed, 13 insertions(+), 8 deletions(-) diff --git a/include/net/ipv6.h b/include/net/ipv6.h index e24b59201a00d..69bc1651aaef8 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -1176,5 +1176,6 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr); int ip6_sock_set_v6only(struct sock *sk, bool val); +void ip6_sock_set_recverr(struct sock *sk, bool val); #endif /* _NET_IPV6_H */ diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index f26224bb3e098..3c67626b6f5a9 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -147,6 +147,16 @@ int ip6_sock_set_v6only(struct sock *sk, bool val) } EXPORT_SYMBOL(ip6_sock_set_v6only); +void ip6_sock_set_recverr(struct sock *sk, bool val) +{ + lock_sock(sk); + inet6_sk(sk)->recverr = val; + if (!val) + skb_queue_purge(&sk->sk_error_queue); + release_sock(sk); +} +EXPORT_SYMBOL(ip6_sock_set_recverr); + static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) { diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 20236ddecd2ef..5e356a63aa791 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -107,7 +107,7 @@ static struct rxrpc_local *rxrpc_alloc_local(struct rxrpc_net *rxnet, static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) { struct sock *usk; - int ret, opt; + int ret; _enter("%p{%d,%d}", local, local->srx.transport_type, local->srx.transport.family); @@ -157,13 +157,7 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) switch (local->srx.transport.family) { case AF_INET6: /* we want to receive ICMPv6 errors */ - opt = 1; - ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_RECVERR, - (char *) &opt, sizeof(opt)); - if (ret < 0) { - _debug("setsockopt failed"); - goto error; - } + ip6_sock_set_recverr(local->socket->sk, true); /* Fall through and set IPv4 options too otherwise we don't get * errors from IPv4 packets sent through the IPv6 socket. -- 2.26.2 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Date: Wed, 13 May 2020 08:26:38 +0200 Subject: [Cluster-devel] [PATCH 23/33] ipv6: add ip6_sock_set_recverr In-Reply-To: <20200513062649.2100053-1-hch@lst.de> References: <20200513062649.2100053-1-hch@lst.de> Message-ID: <20200513062649.2100053-24-hch@lst.de> List-Id: To: cluster-devel.redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Add a helper to directly set the IPV6_RECVERR sockopt from kernel space without going through a fake uaccess. Signed-off-by: Christoph Hellwig --- include/net/ipv6.h | 1 + net/ipv6/ipv6_sockglue.c | 10 ++++++++++ net/rxrpc/local_object.c | 10 ++-------- 3 files changed, 13 insertions(+), 8 deletions(-) diff --git a/include/net/ipv6.h b/include/net/ipv6.h index e24b59201a00d..69bc1651aaef8 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -1176,5 +1176,6 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr); int ip6_sock_set_v6only(struct sock *sk, bool val); +void ip6_sock_set_recverr(struct sock *sk, bool val); #endif /* _NET_IPV6_H */ diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index f26224bb3e098..3c67626b6f5a9 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -147,6 +147,16 @@ int ip6_sock_set_v6only(struct sock *sk, bool val) } EXPORT_SYMBOL(ip6_sock_set_v6only); +void ip6_sock_set_recverr(struct sock *sk, bool val) +{ + lock_sock(sk); + inet6_sk(sk)->recverr = val; + if (!val) + skb_queue_purge(&sk->sk_error_queue); + release_sock(sk); +} +EXPORT_SYMBOL(ip6_sock_set_recverr); + static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) { diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c index 20236ddecd2ef..5e356a63aa791 100644 --- a/net/rxrpc/local_object.c +++ b/net/rxrpc/local_object.c @@ -107,7 +107,7 @@ static struct rxrpc_local *rxrpc_alloc_local(struct rxrpc_net *rxnet, static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) { struct sock *usk; - int ret, opt; + int ret; _enter("%p{%d,%d}", local, local->srx.transport_type, local->srx.transport.family); @@ -157,13 +157,7 @@ static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) switch (local->srx.transport.family) { case AF_INET6: /* we want to receive ICMPv6 errors */ - opt = 1; - ret = kernel_setsockopt(local->socket, SOL_IPV6, IPV6_RECVERR, - (char *) &opt, sizeof(opt)); - if (ret < 0) { - _debug("setsockopt failed"); - goto error; - } + ip6_sock_set_recverr(local->socket->sk, true); /* Fall through and set IPv4 options too otherwise we don't get * errors from IPv4 packets sent through the IPv6 socket. -- 2.26.2