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authorYousong Zhou <yszhou4tech@gmail.com>2019-11-13 17:03:12 +0000
committerYousong Zhou <yszhou4tech@gmail.com>2019-11-23 10:51:00 +0000
commit436dbf12aa7381bd6db1b03b36be5a73df386eb4 (patch)
treeacf596a10de10e68af50aaeac91f1fe78d7649e6
parentb177b180bbdb30978aca75d59337246aed2ac268 (diff)
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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 <yszhou4tech@gmail.com> Acked-by: Hauke Mehrtens <hauke@hauke-m.de> (cherry picked from commit b7c58a1eeba5be2e1f77ec05b417be9d87e26916)
-rw-r--r--target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch14
1 files changed, 13 insertions, 1 deletions
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 <fw@strlen.de>
# 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 <fw@strlen.de>
+ .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 <fw@strlen.de>
+}
+
+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 <fw@strlen.de>
+ 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 <fw@strlen.de>
+ }
+
+ rtnl_unlock();
++
+ synchronize_net();
+ nf_ct_extend_unregister(&rtcache_extend);
+}