netfilter: ip6tables: Add a .pre_exit hook in all ip6table_foo.c.

Using new helpers ip6t_unregister_table_pre_exit() and
ip6t_unregister_table_exit().

Fixes: b9e69e127397 ("netfilter: xtables: don't hook tables by default")
Signed-off-by: David Wilder <dwilder@us.ibm.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/ipv6/netfilter/ip6table_filter.c b/net/ipv6/netfilter/ip6table_filter.c
index 32667f5..88337b5 100644 (file)
--- a/net/ipv6/netfilter/ip6table_filter.c
+++ b/net/ipv6/netfilter/ip6table_filter.c
@@ -73,16 +73,24 @@ static int __net_init ip6table_filter_net_init(struct net *net)
        return 0;
 }
 
+static void __net_exit ip6table_filter_net_pre_exit(struct net *net)
+{
+       if (net->ipv6.ip6table_filter)
+               ip6t_unregister_table_pre_exit(net, net->ipv6.ip6table_filter,
+                                              filter_ops);
+}
+
 static void __net_exit ip6table_filter_net_exit(struct net *net)
 {
        if (!net->ipv6.ip6table_filter)
                return;
-       ip6t_unregister_table(net, net->ipv6.ip6table_filter, filter_ops);
+       ip6t_unregister_table_exit(net, net->ipv6.ip6table_filter);
        net->ipv6.ip6table_filter = NULL;
 }
 
 static struct pernet_operations ip6table_filter_net_ops = {
        .init = ip6table_filter_net_init,
+       .pre_exit = ip6table_filter_net_pre_exit,
        .exit = ip6table_filter_net_exit,
 };
 

diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index 070afb9..1a27486 100644 (file)
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -93,16 +93,24 @@ static int __net_init ip6table_mangle_table_init(struct net *net)
        return ret;
 }
 
+static void __net_exit ip6table_mangle_net_pre_exit(struct net *net)
+{
+       if (net->ipv6.ip6table_mangle)
+               ip6t_unregister_table_pre_exit(net, net->ipv6.ip6table_mangle,
+                                              mangle_ops);
+}
+
 static void __net_exit ip6table_mangle_net_exit(struct net *net)
 {
        if (!net->ipv6.ip6table_mangle)
                return;
 
-       ip6t_unregister_table(net, net->ipv6.ip6table_mangle, mangle_ops);
+       ip6t_unregister_table_exit(net, net->ipv6.ip6table_mangle);
        net->ipv6.ip6table_mangle = NULL;
 }
 
 static struct pernet_operations ip6table_mangle_net_ops = {
+       .pre_exit = ip6table_mangle_net_pre_exit,
        .exit = ip6table_mangle_net_exit,
 };
 

diff --git a/net/ipv6/netfilter/ip6table_nat.c b/net/ipv6/netfilter/ip6table_nat.c
index 0f48759..0a23265 100644 (file)
--- a/net/ipv6/netfilter/ip6table_nat.c
+++ b/net/ipv6/netfilter/ip6table_nat.c
@@ -114,16 +114,22 @@ static int __net_init ip6table_nat_table_init(struct net *net)
        return ret;
 }
 
+static void __net_exit ip6table_nat_net_pre_exit(struct net *net)
+{
+       if (net->ipv6.ip6table_nat)
+               ip6t_nat_unregister_lookups(net);
+}
+
 static void __net_exit ip6table_nat_net_exit(struct net *net)
 {
        if (!net->ipv6.ip6table_nat)
                return;
-       ip6t_nat_unregister_lookups(net);
-       ip6t_unregister_table(net, net->ipv6.ip6table_nat, NULL);
+       ip6t_unregister_table_exit(net, net->ipv6.ip6table_nat);
        net->ipv6.ip6table_nat = NULL;
 }
 
 static struct pernet_operations ip6table_nat_net_ops = {
+       .pre_exit = ip6table_nat_net_pre_exit,
        .exit   = ip6table_nat_net_exit,
 };
 

diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c
index a22100b..8f9e742 100644 (file)
--- a/net/ipv6/netfilter/ip6table_raw.c
+++ b/net/ipv6/netfilter/ip6table_raw.c
@@ -66,15 +66,23 @@ static int __net_init ip6table_raw_table_init(struct net *net)
        return ret;
 }
 
+static void __net_exit ip6table_raw_net_pre_exit(struct net *net)
+{
+       if (net->ipv6.ip6table_raw)
+               ip6t_unregister_table_pre_exit(net, net->ipv6.ip6table_raw,
+                                              rawtable_ops);
+}
+
 static void __net_exit ip6table_raw_net_exit(struct net *net)
 {
        if (!net->ipv6.ip6table_raw)
                return;
-       ip6t_unregister_table(net, net->ipv6.ip6table_raw, rawtable_ops);
+       ip6t_unregister_table_exit(net, net->ipv6.ip6table_raw);
        net->ipv6.ip6table_raw = NULL;
 }
 
 static struct pernet_operations ip6table_raw_net_ops = {
+       .pre_exit = ip6table_raw_net_pre_exit,
        .exit = ip6table_raw_net_exit,
 };
 

diff --git a/net/ipv6/netfilter/ip6table_security.c b/net/ipv6/netfilter/ip6table_security.c
index a74335f..5e8c48f 100644 (file)
--- a/net/ipv6/netfilter/ip6table_security.c
+++ b/net/ipv6/netfilter/ip6table_security.c
@@ -61,15 +61,23 @@ static int __net_init ip6table_security_table_init(struct net *net)
        return ret;
 }
 
+static void __net_exit ip6table_security_net_pre_exit(struct net *net)
+{
+       if (net->ipv6.ip6table_security)
+               ip6t_unregister_table_pre_exit(net, net->ipv6.ip6table_security,
+                                              sectbl_ops);
+}
+
 static void __net_exit ip6table_security_net_exit(struct net *net)
 {
        if (!net->ipv6.ip6table_security)
                return;
-       ip6t_unregister_table(net, net->ipv6.ip6table_security, sectbl_ops);
+       ip6t_unregister_table_exit(net, net->ipv6.ip6table_security);
        net->ipv6.ip6table_security = NULL;
 }
 
 static struct pernet_operations ip6table_security_net_ops = {
+       .pre_exit = ip6table_security_net_pre_exit,
        .exit = ip6table_security_net_exit,
 };