netns xfrm: state lookup in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/ah4.c

diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 992ecd8..750426b 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -209,7 +209,7 @@
 	    icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
 		return;
 
-	x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, ah->spi, IPPROTO_AH, AF_INET);
+	x = xfrm_state_lookup(&init_net, (xfrm_address_t *)&iph->daddr, ah->spi, IPPROTO_AH, AF_INET);
 	if (!x)
 		return;
 	printk(KERN_DEBUG "pmtu discovery on SA AH/%08x/%08x\n",

net/ipv4/esp4.c

diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 95a9c65..3595012 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -421,7 +421,7 @@
 	    icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
 		return;
 
-	x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, esph->spi, IPPROTO_ESP, AF_INET);
+	x = xfrm_state_lookup(&init_net, (xfrm_address_t *)&iph->daddr, esph->spi, IPPROTO_ESP, AF_INET);
 	if (!x)
 		return;
 	NETDEBUG(KERN_DEBUG "pmtu discovery on SA ESP/%08x/%08x\n",

net/ipv4/ipcomp.c

diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index 0a35f1b..3262ce0 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -35,7 +35,7 @@
 		return;
 
 	spi = htonl(ntohs(ipch->cpi));
-	x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr,
+	x = xfrm_state_lookup(&init_net, (xfrm_address_t *)&iph->daddr,
 			      spi, IPPROTO_COMP, AF_INET);
 	if (!x)
 		return;
@@ -85,7 +85,7 @@
 	int err = 0;
 	struct xfrm_state *t;
 
-	t = xfrm_state_lookup((xfrm_address_t *)&x->id.daddr.a4,
+	t = xfrm_state_lookup(&init_net, (xfrm_address_t *)&x->id.daddr.a4,
 			      x->props.saddr.a4, IPPROTO_IPIP, AF_INET);
 	if (!t) {
 		t = ipcomp_tunnel_create(x);