From 436dbf12aa7381bd6db1b03b36be5a73df386eb4 Mon Sep 17 00:00:00 2001 From: Yousong Zhou Date: Wed, 13 Nov 2019 17:03:12 +0000 Subject: [PATCH] kernel: nf_conntrack_rtcache: fix cleanup on netns delete and rmmod Fixes FS#1472, FS#2353, FS#2426 Fixes: b3f95490 ("kernel: generic: Add kernel 4.14 support") Signed-off-by: Yousong Zhou Acked-by: Hauke Mehrtens (cherry picked from commit b7c58a1eeba5be2e1f77ec05b417be9d87e26916) --- .../020-backport_netfilter_rtcache.patch | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch b/target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch index 8a6fba4307..d745a97026 100644 --- a/target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch +++ b/target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch @@ -127,7 +127,7 @@ Signed-off-by: Florian Westphal # netlink interface for nf_conntrack --- /dev/null +++ b/net/netfilter/nf_conntrack_rtcache.c -@@ -0,0 +1,428 @@ +@@ -0,0 +1,440 @@ +/* route cache for netfilter. + * + * (C) 2014 Red Hat GmbH @@ -444,6 +444,11 @@ Signed-off-by: Florian Westphal + .destroy = nf_conn_rtcache_destroy, +}; + ++static int __net_init rtcache_net_init(struct net *net) ++{ ++ return nf_register_net_hooks(net, rtcache_ops, ARRAY_SIZE(rtcache_ops)); ++} ++ +static void __net_exit rtcache_net_exit(struct net *net) +{ + /* remove hooks so no new connections get rtcache extension */ @@ -451,6 +456,7 @@ Signed-off-by: Florian Westphal +} + +static struct pernet_operations rtcache_ops_net_ops = { ++ .init = rtcache_net_init, + .exit = rtcache_net_exit, +}; + @@ -531,6 +537,11 @@ Signed-off-by: Florian Westphal + synchronize_net(); + + unregister_netdevice_notifier(&nf_rtcache_notifier); ++ unregister_pernet_subsys(&rtcache_ops_net_ops); ++ for_each_net(net) ++ nf_unregister_net_hooks(net, rtcache_ops, ARRAY_SIZE(rtcache_ops)); ++ ++ synchronize_net(); + + rtnl_lock(); + @@ -547,6 +558,7 @@ Signed-off-by: Florian Westphal + } + + rtnl_unlock(); ++ + synchronize_net(); + nf_ct_extend_unregister(&rtcache_extend); +} -- 2.30.2