X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fdccp%2Fipv6.c;h=f7fe2a572d7bb6bafc27de0e16411eb6cc68b5fd;hb=a4056573873dc9fc506ce9293c4d01670101a637;hp=94d749e6d49439e77b4593a770abc9020699ef18;hpb=8eefca4888c986d993b2571eb31f0397a5d0a178;p=linux-2.6

diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 94d749e6d4..f7fe2a572d 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -33,8 +33,7 @@
 #include "ipv6.h"
 #include "feat.h"
 
-/* Socket used for sending RSTs and ACKs */
-static struct sock *dccp_v6_ctl_sk;
+/* The per-net dccp.v6_ctl_sk is used for sending RSTs and ACKs */
 
 static struct inet_connection_sock_af_ops dccp_ipv6_mapped;
 static struct inet_connection_sock_af_ops dccp_ipv6_af_ops;
@@ -95,7 +94,8 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	int err;
 	__u64 seq;
 
-	sk = inet6_lookup(&init_net, &dccp_hashinfo, &hdr->daddr, dh->dccph_dport,
+	sk = inet6_lookup(dev_net(skb->dev), &dccp_hashinfo,
+			&hdr->daddr, dh->dccph_dport,
 			&hdr->saddr, dh->dccph_sport, inet6_iif(skb));
 
 	if (sk == NULL) {
@@ -296,6 +296,8 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
 	struct ipv6hdr *rxip6h;
 	struct sk_buff *skb;
 	struct flowi fl;
+	struct net *net = dev_net(rxskb->dst->dev);
+	struct sock *ctl_sk = net->dccp.v6_ctl_sk;
 
 	if (dccp_hdr(rxskb)->dccph_type == DCCP_PKT_RESET)
 		return;
@@ -303,7 +305,7 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
 	if (!ipv6_unicast_destination(rxskb))
 		return;
 
-	skb = dccp_ctl_make_reset(dccp_v6_ctl_sk, rxskb);
+	skb = dccp_ctl_make_reset(ctl_sk, rxskb);
 	if (skb == NULL)
 		return;
 
@@ -322,9 +324,9 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
 	security_skb_classify_flow(rxskb, &fl);
 
 	/* sk = NULL, but it is safe for now. RST socket required. */
-	if (!ip6_dst_lookup(NULL, &skb->dst, &fl)) {
+	if (!ip6_dst_lookup(ctl_sk, &skb->dst, &fl)) {
 		if (xfrm_lookup(&skb->dst, &fl, NULL, 0) >= 0) {
-			ip6_xmit(dccp_v6_ctl_sk, skb, &fl, NULL, 0);
+			ip6_xmit(ctl_sk, skb, &fl, NULL, 0);
 			DCCP_INC_STATS_BH(DCCP_MIB_OUTSEGS);
 			DCCP_INC_STATS_BH(DCCP_MIB_OUTRSTS);
 			return;
@@ -358,7 +360,7 @@ static struct sock *dccp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
 	if (req != NULL)
 		return dccp_check_req(sk, skb, req, prev);
 
-	nsk = __inet6_lookup_established(&init_net, &dccp_hashinfo,
+	nsk = __inet6_lookup_established(sock_net(sk), &dccp_hashinfo,
 					 &iph->saddr, dh->dccph_sport,
 					 &iph->daddr, ntohs(dh->dccph_dport),
 					 inet6_iif(skb));
@@ -419,7 +421,6 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	ireq6 = inet6_rsk(req);
 	ipv6_addr_copy(&ireq6->rmt_addr, &ipv6_hdr(skb)->saddr);
 	ipv6_addr_copy(&ireq6->loc_addr, &ipv6_hdr(skb)->daddr);
-	ireq6->pktopts	= NULL;
 
 	if (ipv6_opt_accepted(sk, skb) ||
 	    np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
@@ -623,7 +624,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 	newinet->daddr = newinet->saddr = newinet->rcv_saddr = LOOPBACK4_IPV6;
 
 	__inet6_hash(newsk);
-	inet_inherit_port(sk, newsk);
+	__inet_inherit_port(sk, newsk);
 
 	return newsk;
 
@@ -789,8 +790,8 @@ static int dccp_v6_rcv(struct sk_buff *skb)
 
 	/* Step 2:
 	 *	Look up flow ID in table and get corresponding socket */
-	sk = __inet6_lookup(&init_net, &dccp_hashinfo, &ipv6_hdr(skb)->saddr,
-			    dh->dccph_sport,
+	sk = __inet6_lookup(dev_net(skb->dst->dev), &dccp_hashinfo,
+			    &ipv6_hdr(skb)->saddr, dh->dccph_sport,
 			    &ipv6_hdr(skb)->daddr, ntohs(dh->dccph_dport),
 			    inet6_iif(skb));
 	/*
@@ -1171,6 +1172,25 @@ static struct inet_protosw dccp_v6_protosw = {
 	.flags		= INET_PROTOSW_ICSK,
 };
 
+static int dccp_v6_init_net(struct net *net)
+{
+	int err;
+
+	err = inet_ctl_sock_create(&net->dccp.v6_ctl_sk, PF_INET6,
+				   SOCK_DCCP, IPPROTO_DCCP, net);
+	return err;
+}
+
+static void dccp_v6_exit_net(struct net *net)
+{
+	inet_ctl_sock_destroy(net->dccp.v6_ctl_sk);
+}
+
+static struct pernet_operations dccp_v6_ops = {
+	.init   = dccp_v6_init_net,
+	.exit   = dccp_v6_exit_net,
+};
+
 static int __init dccp_v6_init(void)
 {
 	int err = proto_register(&dccp_v6_prot, 1);
@@ -1184,13 +1204,13 @@ static int __init dccp_v6_init(void)
 
 	inet6_register_protosw(&dccp_v6_protosw);
 
-	err = inet_ctl_sock_create(&dccp_v6_ctl_sk, PF_INET6,
-				   SOCK_DCCP, IPPROTO_DCCP, &init_net);
+	err = register_pernet_subsys(&dccp_v6_ops);
 	if (err != 0)
-		goto out_unregister_protosw;
+		goto out_destroy_ctl_sock;
 out:
 	return err;
-out_unregister_protosw:
+
+out_destroy_ctl_sock:
 	inet6_del_protocol(&dccp_v6_protocol, IPPROTO_DCCP);
 	inet6_unregister_protosw(&dccp_v6_protosw);
 out_unregister_proto:
@@ -1200,7 +1220,7 @@ out_unregister_proto:
 
 static void __exit dccp_v6_exit(void)
 {
-	inet_ctl_sock_destroy(dccp_v6_ctl_sk);
+	unregister_pernet_subsys(&dccp_v6_ops);
 	inet6_del_protocol(&dccp_v6_protocol, IPPROTO_DCCP);
 	inet6_unregister_protosw(&dccp_v6_protosw);
 	proto_unregister(&dccp_v6_prot);