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GET /api/patches/818815/?format=api
{ "id": 818815, "url": "http://patchwork.ozlabs.org/api/patches/818815/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/accc6eb9b572f7f595deaca91a0c8f95a5144916.1506114055.git.pabeni@redhat.com/", "project": { "id": 7, "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api", "name": "Linux network development", "link_name": "netdev", "list_id": "netdev.vger.kernel.org", "list_email": "netdev@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<accc6eb9b572f7f595deaca91a0c8f95a5144916.1506114055.git.pabeni@redhat.com>", "list_archive_url": null, "date": "2017-09-26T20:18:53", "name": "[RFC,11/11] udp: dst lookup in early demux for unconnected sockets", "commit_ref": null, "pull_url": null, "state": "rfc", "archived": true, "hash": "4edbda705f58b4f83836fe5a34c10b8c207cf2f1", "submitter": { "id": 67312, "url": "http://patchwork.ozlabs.org/api/people/67312/?format=api", "name": "Paolo Abeni", "email": "pabeni@redhat.com" }, "delegate": { "id": 34, "url": "http://patchwork.ozlabs.org/api/users/34/?format=api", "username": "davem", "first_name": "David", "last_name": "Miller", "email": "davem@davemloft.net" }, "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/accc6eb9b572f7f595deaca91a0c8f95a5144916.1506114055.git.pabeni@redhat.com/mbox/", "series": [ { "id": 4709, "url": "http://patchwork.ozlabs.org/api/series/4709/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=4709", "date": "2017-09-22T21:06:24", "name": "udp: full early demux for unconnected sockets", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/4709/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/818815/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/818815/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<netdev-owner@vger.kernel.org>", "X-Original-To": "patchwork-incoming@ozlabs.org", "Delivered-To": "patchwork-incoming@ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "ext-mx03.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com", "ext-mx03.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=pabeni@redhat.com" ], "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3y1sjr4fmrz9t3Z\n\tfor <patchwork-incoming@ozlabs.org>;\n\tWed, 27 Sep 2017 06:19:12 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S937088AbdIZUTJ (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tTue, 26 Sep 2017 16:19:09 -0400", "from mx1.redhat.com ([209.132.183.28]:53394 \"EHLO mx1.redhat.com\"\n\trhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP\n\tid S935846AbdIZUTJ (ORCPT <rfc822;netdev@vger.kernel.org>);\n\tTue, 26 Sep 2017 16:19:09 -0400", "from smtp.corp.redhat.com\n\t(int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id CD5457E42A;\n\tTue, 26 Sep 2017 20:19:08 +0000 (UTC)", "from dhcppc1.redhat.com (ovpn-116-44.ams2.redhat.com\n\t[10.36.116.44])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 1596560841;\n\tTue, 26 Sep 2017 20:19:06 +0000 (UTC)" ], "DMARC-Filter": "OpenDMARC Filter v1.3.2 mx1.redhat.com CD5457E42A", "From": "Paolo Abeni <pabeni@redhat.com>", "To": "netdev@vger.kernel.org", "Cc": "\"David S. Miller\" <davem@davemloft.net>,\n\tPablo Neira Ayuso <pablo@netfilter.org>, Florian Westphal <fw@strlen.de>,\n\tEric Dumazet <edumazet@google.com>,\n\tHannes Frederic Sowa <hannes@stressinduktion.org>", "Subject": "[RFC PATCH 11/11] udp: dst lookup in early demux for unconnected\n\tsockets", "Date": "Tue, 26 Sep 2017 22:18:53 +0200", "Message-Id": "<accc6eb9b572f7f595deaca91a0c8f95a5144916.1506114055.git.pabeni@redhat.com>", "In-Reply-To": "<cover.1506114055.git.pabeni@redhat.com>", "References": "<cover.1506114055.git.pabeni@redhat.com>", "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.13", "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.27]);\n\tTue, 26 Sep 2017 20:19:08 +0000 (UTC)", "Sender": "netdev-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<netdev.vger.kernel.org>", "X-Mailing-List": "netdev@vger.kernel.org" }, "content": "Now that all the helper are in place we can leverage them to\nfetch the appropriate destination for unconnected sockets,\nlooking up the ifaddr cache if not local bind are not allowed.\n\nSigned-off-by: Paolo Abeni <pabeni@redhat.com>\n---\n net/ipv4/udp.c | 10 ++++++++--\n net/ipv6/udp.c | 9 ++++++++-\n 2 files changed, 16 insertions(+), 3 deletions(-)", "diff": "diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c\nindex b7202a15f360..87d48101efe2 100644\n--- a/net/ipv4/udp.c\n+++ b/net/ipv4/udp.c\n@@ -2259,9 +2259,15 @@ int udp_v4_early_demux(struct sk_buff *skb)\n \t\treturn 0;\n \n \tskb_set_noref_sk(skb, sk);\n-\tif (udp_use_rx_dst_cache(sk, skb))\n+\tif (udp_use_rx_dst_cache(sk, skb)) {\n \t\tudp_set_skb_rx_dst(sk, skb, 0);\n-\treturn 0;\n+\t\treturn 0;\n+\t}\n+\n+\tif (net->ipv4.sysctl_ip_nonlocal_bind)\n+\t\treturn 0;\n+\n+\treturn ip_route_try_local_rcu(net, skb, iph);\n }\n \n int udp_rcv(struct sk_buff *skb)\ndiff --git a/net/ipv6/udp.c b/net/ipv6/udp.c\nindex 67d340679c3a..360d54bc2359 100644\n--- a/net/ipv6/udp.c\n+++ b/net/ipv6/udp.c\n@@ -935,8 +935,15 @@ static void udp_v6_early_demux(struct sk_buff *skb)\n \t\treturn;\n \n \tskb_set_noref_sk(skb, sk);\n-\tif (udp6_use_rx_dst_cache(sk))\n+\tif (udp6_use_rx_dst_cache(sk)) {\n \t\tudp_set_skb_rx_dst(sk, skb, inet6_sk(sk)->rx_dst_cookie);\n+\t\treturn;\n+\t}\n+\n+\tif (net->ipv6.sysctl.ip_nonlocal_bind)\n+\t\treturn;\n+\n+\tip6_route_try_local_rcu_bh(net, skb);\n }\n \n static __inline__ int udpv6_rcv(struct sk_buff *skb)\n", "prefixes": [ "RFC", "11/11" ] }