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authorNikolay Borisov <kernel@kyup.com>2016-02-15 12:11:30 +0200
committerDavid S. Miller <davem@davemloft.net>2016-02-16 20:42:54 -0500
commite21145a9871aa5ae07e01926105bb8e523d64095 (patch)
tree528353414eb8388a482e7be79a391b1d9d9aba6c
parent287b7f38fd6842e534db1783cead3843f7677b79 (diff)
downloadop-kernel-dev-e21145a9871aa5ae07e01926105bb8e523d64095.zip
op-kernel-dev-e21145a9871aa5ae07e01926105bb8e523d64095.tar.gz
ipv4: namespacify ip_early_demux sysctl knob
Signed-off-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/ip.h3
-rw-r--r--include/net/netns/ipv4.h1
-rw-r--r--net/ipv4/ip_input.c5
-rw-r--r--net/ipv4/sysctl_net_ipv4.c15
-rw-r--r--net/ipv6/ip6_input.c2
5 files changed, 11 insertions, 15 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index e3fb25d..cbb134b 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -245,9 +245,6 @@ extern int inet_peer_threshold;
extern int inet_peer_minttl;
extern int inet_peer_maxttl;
-/* From ip_input.c */
-extern int sysctl_ip_early_demux;
-
void ipfrag_init(void);
void ip_static_sysctl_init(void);
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index b7e3fb2..a69cde3 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -86,6 +86,7 @@ struct netns_ipv4 {
int sysctl_ip_nonlocal_bind;
/* Shall we try to damage output packets if routing dev changes? */
int sysctl_ip_dynaddr;
+ int sysctl_ip_early_demux;
int sysctl_fwmark_reflect;
int sysctl_tcp_fwmark_accept;
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 852002f..e3d7827 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -308,15 +308,12 @@ drop:
return true;
}
-int sysctl_ip_early_demux __read_mostly = 1;
-EXPORT_SYMBOL(sysctl_ip_early_demux);
-
static int ip_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
const struct iphdr *iph = ip_hdr(skb);
struct rtable *rt;
- if (sysctl_ip_early_demux &&
+ if (net->ipv4.sysctl_ip_early_demux &&
!skb_dst(skb) &&
!skb->sk &&
!ip_is_fragment(iph)) {
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 04ac5b7..1e1fe60 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -297,13 +297,6 @@ static struct ctl_table ipv4_table[] = {
.proc_handler = proc_dointvec
},
{
- .procname = "ip_early_demux",
- .data = &sysctl_ip_early_demux,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = proc_dointvec
- },
- {
.procname = "tcp_fastopen",
.data = &sysctl_tcp_fastopen,
.maxlen = sizeof(int),
@@ -744,6 +737,13 @@ static struct ctl_table ipv4_net_table[] = {
.proc_handler = proc_dointvec
},
{
+ .procname = "ip_early_demux",
+ .data = &init_net.ipv4.sysctl_ip_early_demux,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec
+ },
+ {
.procname = "ip_default_ttl",
.data = &init_net.ipv4.sysctl_ip_default_ttl,
.maxlen = sizeof(int),
@@ -990,6 +990,7 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
net->ipv4.sysctl_ip_default_ttl = IPDEFTTL;
net->ipv4.sysctl_ip_dynaddr = 0;
+ net->ipv4.sysctl_ip_early_demux = 1;
return 0;
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 31ac3c5..c05c425 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -49,7 +49,7 @@
int ip6_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
- if (sysctl_ip_early_demux && !skb_dst(skb) && skb->sk == NULL) {
+ if (net->ipv4.sysctl_ip_early_demux && !skb_dst(skb) && skb->sk == NULL) {
const struct inet6_protocol *ipprot;
ipprot = rcu_dereference(inet6_protos[ipv6_hdr(skb)->nexthdr]);
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