From patchwork Wed Jan 23 19:26:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory Rose X-Patchwork-Id: 1030124 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=openvswitch.org (client-ip=140.211.169.12; helo=mail.linuxfoundation.org; envelope-from=ovs-dev-bounces@openvswitch.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="ZkNmHrHb"; dkim-atps=neutral Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 43lFkL65Fmz9sCs for ; Thu, 24 Jan 2019 06:30:34 +1100 (AEDT) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 174055FB8; Wed, 23 Jan 2019 19:30:32 +0000 (UTC) X-Original-To: dev@openvswitch.org Delivered-To: ovs-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 603F35E28 for ; Wed, 23 Jan 2019 19:26:40 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-pl1-f193.google.com (mail-pl1-f193.google.com [209.85.214.193]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id D5D6A85F for ; Wed, 23 Jan 2019 19:26:39 +0000 (UTC) Received: by mail-pl1-f193.google.com with SMTP id w4so1669627plz.1 for ; Wed, 23 Jan 2019 11:26:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=xYqG46sB+3OZY0DbIyZMf59rIwO33Y9UvoqpRBj7w5Y=; b=ZkNmHrHbXyHn6DtLkrJRbUVYLlxCM7ARsGIKrDhoxHOOH5901jYIodOETpc1ILOKR9 bEeWCxosn/tXw7UHmCCJ7xNMg3/IIN59Xx4VZkNMAlcaSEYHSnnAhVUNWFGej5yVgr7j 81tn0eIekMn4n8WitPcxOzkTV9pWigifoKDZ9pwGxsBsd3yonmAtkd76ocDYTlDecea5 DD8zQqFhC1lH93IsPh12LU9emuTa74sma1lW9KTL7+scPqC8FwWE7tK8KCIanoLxfJbf +OrOJf8Tvs9E8bEp9L/pEHwD+K0MpzBAgOWSOSjqteyd/sDek8WpW7fSTtL9bDw1k5iN k0Mw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=xYqG46sB+3OZY0DbIyZMf59rIwO33Y9UvoqpRBj7w5Y=; b=dKOpoMwNmhFUhQEslUUdjREJPu4xUiWTdmvZKpMSV/sFcsj8iZThYZb9QwvHwRXri2 Pcx7FmPQNbEHeLfxfZBjJ96fYnfHRD29qwvA5HZ5Bqwdgjfewq5QAUZWoi8gSInRpjfy LIoxMZu6dsfSQM+xURsjYUiKmiaphaBPXLCSz/jPgcqHUjfvFFVEUFno5Ye7sTS+TPWD 5yEaJOUMwoak3HV0xzZnJW1lhC0wDDskBtZjw60Ujgst9iro8lI9rLTKNhifFgpALk0C IkPfYA9zQYb8Qg1VBD5gd8v0JSlWYM8RghDUkVkmuuWmtEMBoSR4mOtH40c1/zVS7gsp 6pWg== X-Gm-Message-State: AJcUukeIaE0HJotOPUEL0ebMIQGMvtTIkjJHxxxL3CYXAlyrijCOORVU +q+fWyd98rxV4ZsAdMCThkX5khSx X-Google-Smtp-Source: ALg8bN6cC9ziz39MTCbTwo7or314C6XR76XzaKsERPHe+HbAo43tKcJroIh7K0G/+eeA5ZmvhANnZA== X-Received: by 2002:a17:902:d68c:: with SMTP id v12mr3497926ply.4.1548271599065; Wed, 23 Jan 2019 11:26:39 -0800 (PST) Received: from gizo.domain ([97.115.149.207]) by smtp.gmail.com with ESMTPSA id b7sm32384066pga.39.2019.01.23.11.26.37 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 23 Jan 2019 11:26:38 -0800 (PST) From: Greg Rose To: dev@openvswitch.org Date: Wed, 23 Jan 2019 11:26:35 -0800 Message-Id: <1548271595-4316-1-git-send-email-gvrose8192@gmail.com> X-Mailer: git-send-email 1.8.3.1 X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Subject: [ovs-dev] [Branch 2.9 Patch] compat: Fixup ipv6 fragmentation on 4.9.135+ kernels X-BeenThere: ovs-dev@openvswitch.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ovs-dev-bounces@openvswitch.org Errors-To: ovs-dev-bounces@openvswitch.org Upstream commit 648700f76b03 ("inet: frags: use rhashtables...") changed how ipv6 fragmentation is implemented. This patch was backported to the upstream stable 4.9.x kernel starting at 4.9.135. This patch creates the compatibility layer changes required to both compile and also operate correctly with ipv6 fragmentation on these kernels. Check if the inet_frags 'rnd' field is present to key on whether the upstream patch is present. Also update Travis to the latest 4.9 kernel release so that this patch is compile tested. Passes Travis: https://travis-ci.org/gvrose8192/ovs-experimental/builds/478033409 Cc: William Tu Cc: Yi-Hung Wei Cc: Yifeng Sun Acked-by: Yi-Hung Wei Signed-off-by: Greg Rose Signed-off-by: Ben Pfaff --- .travis.yml | 2 +- acinclude.m4 | 3 ++ datapath/linux/compat/nf_conntrack_reasm.c | 54 ++++++++++++++++++++++++++++-- 3 files changed, 56 insertions(+), 3 deletions(-) diff --git a/.travis.yml b/.travis.yml index ef907ca..ab3817d 100644 --- a/.travis.yml +++ b/.travis.yml @@ -34,7 +34,7 @@ env: - KERNEL=3.16.54 DPDK=1 OPTS="--enable-shared" - KERNEL=4.15.3 - KERNEL=4.14.19 - - KERNEL=4.9.81 + - KERNEL=4.9.149 - KERNEL=4.4.115 - KERNEL=4.1.49 - KERNEL=3.10.108 diff --git a/acinclude.m4 b/acinclude.m4 index bf790fe..5b7f36c 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -812,6 +812,9 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [ OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], frag_percpu_counter_batch[], [OVS_DEFINE([HAVE_FRAG_PERCPU_COUNTER_BATCH])]) + OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], + [rnd], + [OVS_DEFINE([HAVE_INET_FRAGS_RND])]) if cmp -s datapath/linux/kcompat.h.new \ datapath/linux/kcompat.h >/dev/null 2>&1; then diff --git a/datapath/linux/compat/nf_conntrack_reasm.c b/datapath/linux/compat/nf_conntrack_reasm.c index ce13112..9d77d98 100644 --- a/datapath/linux/compat/nf_conntrack_reasm.c +++ b/datapath/linux/compat/nf_conntrack_reasm.c @@ -99,6 +99,7 @@ static inline u8 ip6_frag_ecn(const struct ipv6hdr *ipv6h) return 1 << (ipv6_get_dsfield(ipv6h) & INET_ECN_MASK); } +#ifdef HAVE_INET_FRAGS_RND static unsigned int nf_hash_frag(__be32 id, const struct in6_addr *saddr, const struct in6_addr *daddr) { @@ -125,6 +126,7 @@ static unsigned int nf_hashfn(struct inet_frag_queue *q) return nf_hash_frag(nq->id, &nq->saddr, &nq->daddr); } +#endif /* HAVE_INET_FRAGS_RND */ static void nf_ct_frag6_expire(unsigned long data) { struct frag_queue *fq; @@ -133,9 +135,14 @@ static void nf_ct_frag6_expire(unsigned long data) fq = container_of((struct inet_frag_queue *)data, struct frag_queue, q); net = get_net_from_netns_frags6(fq->q.net); +#ifdef HAVE_INET_FRAGS_RND ip6_expire_frag_queue(net, fq, &nf_frags); +#else + ip6_expire_frag_queue(net, fq); +#endif } +#ifdef HAVE_INET_FRAGS_RND /* Creation primitives. */ static inline struct frag_queue *fq_find(struct net *net, __be32 id, u32 user, struct in6_addr *src, @@ -168,7 +175,27 @@ static inline struct frag_queue *fq_find(struct net *net, __be32 id, } return container_of(q, struct frag_queue, q); } +#else +static struct frag_queue *fq_find(struct net *net, __be32 id, u32 user, + const struct ipv6hdr *hdr, int iif) +{ + struct frag_v6_compare_key key = { + .id = id, + .saddr = hdr->saddr, + .daddr = hdr->daddr, + .user = user, + .iif = iif, + }; + struct inet_frag_queue *q; + + q = inet_frag_find(&net->nf_frag.frags, &key); + if (!q) + return NULL; + + return container_of(q, struct frag_queue, q); +} +#endif /* HAVE_INET_FRAGS_RND */ static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb, const struct frag_hdr *fhdr, int nhoff) @@ -317,7 +344,11 @@ found: return 0; discard_fq: +#ifdef HAVE_INET_FRAGS_RND inet_frag_kill(&fq->q, &nf_frags); +#else + inet_frag_kill(&fq->q); +#endif err: return -1; } @@ -339,7 +370,11 @@ nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *prev, struct net_devic int payload_len; u8 ecn; +#ifdef HAVE_INET_FRAGS_RND inet_frag_kill(&fq->q, &nf_frags); +#else + inet_frag_kill(&fq->q); +#endif WARN_ON(head == NULL); WARN_ON(NFCT_FRAG6_CB(head)->offset != 0); @@ -561,8 +596,13 @@ int rpl_nf_ct_frag6_gather(struct net *net, struct sk_buff *skb, u32 user) #endif skb_orphan(skb); +#ifdef HAVE_INET_FRAGS_RND fq = fq_find(net, fhdr->identification, user, &hdr->saddr, &hdr->daddr, ip6_frag_ecn(hdr)); +#else + fq = fq_find(net, fhdr->identification, user, hdr, + skb->dev ? skb->dev->ifindex : 0); +#endif if (fq == NULL) return -ENOMEM; @@ -584,7 +624,11 @@ int rpl_nf_ct_frag6_gather(struct net *net, struct sk_buff *skb, u32 user) out_unlock: spin_unlock_bh(&fq->q.lock); +#ifdef HAVE_INET_FRAGS_RND inet_frag_put(&fq->q, &nf_frags); +#else + inet_frag_put(&fq->q); +#endif return ret; } @@ -614,10 +658,12 @@ void ovs_netns_frags6_init(struct net *net) void ovs_netns_frags6_exit(struct net *net) { +#ifdef HAVE_INET_FRAGS_RND struct netns_frags *frags; frags = get_netns_frags6_from_net(net); inet_frags_exit_net(frags, &nf_frags); +#endif } static struct pernet_operations nf_ct_net_ops = { @@ -634,13 +680,17 @@ int rpl_nf_ct_frag6_init(void) #ifndef HAVE_DEFRAG_ENABLE_TAKES_NET nf_defrag_ipv6_enable(); #endif +#ifdef HAVE_INET_FRAGS_RND nf_frags.hashfn = nf_hashfn; + nf_frags.match = ip6_frag_match; +#else + nf_frags.rhash_params = ip6_rhash_params; +#endif nf_frags.constructor = ip6_frag_init; nf_frags.destructor = NULL; nf_frags.qsize = sizeof(struct frag_queue); - nf_frags.match = ip6_frag_match; nf_frags.frag_expire = nf_ct_frag6_expire; -#ifdef HAVE_INET_FRAGS_WITH_FRAGS_WORK +#if defined(HAVE_INET_FRAGS_WITH_FRAGS_WORK) || !defined(HAVE_INET_FRAGS_RND) nf_frags.frags_cache_name = nf_frags_cache_name; #endif #if RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(8,0)