1 files changed, 26 insertions, 28 deletions

diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index e48ca5d45658..3b11e41a2929 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -14,6 +14,7 @@
 
 #include <linux/module.h>
 #include <linux/random.h>
+#include <linux/slab.h>
 #include <linux/xfrm.h>
 
 #include <net/addrconf.h>
@@ -46,7 +47,7 @@ static void dccp_v6_hash(struct sock *sk)
                         return;
                 }
                 local_bh_disable();
-                __inet6_hash(sk);
+                __inet6_hash(sk, NULL);
                 local_bh_enable();
         }
 }
@@ -158,8 +159,8 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
                         ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
                         ipv6_addr_copy(&fl.fl6_src, &np->saddr);
                         fl.oif = sk->sk_bound_dev_if;
-                        fl.fl_ip_dport = inet->dport;
-                        fl.fl_ip_sport = inet->sport;
+                        fl.fl_ip_dport = inet->inet_dport;
+                        fl.fl_ip_sport = inet->inet_sport;
                         security_sk_classify_flow(sk, &fl);
 
                         err = ip6_dst_lookup(sk, &dst, &fl);
@@ -241,7 +242,8 @@ out:
 }
 
 
-static int dccp_v6_send_response(struct sock *sk, struct request_sock *req)
+static int dccp_v6_send_response(struct sock *sk, struct request_sock *req,
+                                 struct request_values *rv_unused)
 {
         struct inet6_request_sock *ireq6 = inet6_rsk(req);
         struct ipv6_pinfo *np = inet6_sk(sk);
@@ -468,7 +470,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
         dreq->dreq_iss     = dccp_v6_init_sequence(skb);
         dreq->dreq_service = service;
 
-        if (dccp_v6_send_response(sk, req))
+        if (dccp_v6_send_response(sk, req, NULL))
                 goto drop_and_free;
 
         inet6_csk_reqsk_queue_hash_add(sk, req, DCCP_TIMEOUT_INIT);
@@ -510,11 +512,9 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 
                 memcpy(newnp, np, sizeof(struct ipv6_pinfo));
 
-                ipv6_addr_set(&newnp->daddr, 0, 0, htonl(0x0000FFFF),
-                              newinet->daddr);
+                ipv6_addr_set_v4mapped(newinet->inet_daddr, &newnp->daddr);
 
-                ipv6_addr_set(&newnp->saddr, 0, 0, htonl(0x0000FFFF),
-                              newinet->saddr);
+                ipv6_addr_set_v4mapped(newinet->inet_saddr, &newnp->saddr);
 
                 ipv6_addr_copy(&newnp->rcv_saddr, &newnp->saddr);
 
@@ -642,9 +642,10 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 
         dccp_sync_mss(newsk, dst_mtu(dst));
 
-        newinet->daddr = newinet->saddr = newinet->rcv_saddr = LOOPBACK4_IPV6;
+        newinet->inet_daddr = newinet->inet_saddr = LOOPBACK4_IPV6;
+        newinet->inet_rcv_saddr = LOOPBACK4_IPV6;
 
-        __inet6_hash(newsk);
+        __inet6_hash(newsk, NULL);
         __inet_inherit_port(sk, newsk);
 
         return newsk;
@@ -970,12 +971,9 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
                         icsk->icsk_af_ops = &dccp_ipv6_af_ops;
                         sk->sk_backlog_rcv = dccp_v6_do_rcv;
                         goto failure;
-                } else {
-                        ipv6_addr_set(&np->saddr, 0, 0, htonl(0x0000FFFF),
-                                      inet->saddr);
-                        ipv6_addr_set(&np->rcv_saddr, 0, 0, htonl(0x0000FFFF),
-                                      inet->rcv_saddr);
                 }
+                ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr);
+                ipv6_addr_set_v4mapped(inet->inet_rcv_saddr, &np->rcv_saddr);
 
                 return err;
         }
@@ -988,7 +986,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
         ipv6_addr_copy(&fl.fl6_src, saddr ? saddr : &np->saddr);
         fl.oif = sk->sk_bound_dev_if;
         fl.fl_ip_dport = usin->sin6_port;
-        fl.fl_ip_sport = inet->sport;
+        fl.fl_ip_sport = inet->inet_sport;
         security_sk_classify_flow(sk, &fl);
 
         if (np->opt != NULL && np->opt->srcrt != NULL) {
@@ -1021,7 +1019,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 
         /* set the source address */
         ipv6_addr_copy(&np->saddr, saddr);
-        inet->rcv_saddr = LOOPBACK4_IPV6;
+        inet->inet_rcv_saddr = LOOPBACK4_IPV6;
 
         __ip6_dst_store(sk, dst, NULL, NULL);
 
@@ -1030,7 +1028,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
                 icsk->icsk_ext_hdr_len = (np->opt->opt_flen +
                                           np->opt->opt_nflen);
 
-        inet->dport = usin->sin6_port;
+        inet->inet_dport = usin->sin6_port;
 
         dccp_set_state(sk, DCCP_REQUESTING);
         err = inet6_hash_connect(&dccp_death_row, sk);
@@ -1039,7 +1037,8 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 
         dp->dccps_iss = secure_dccpv6_sequence_number(np->saddr.s6_addr32,
                                                       np->daddr.s6_addr32,
-                                                      inet->sport, inet->dport);
+                                                      inet->inet_sport,
+                                                      inet->inet_dport);
         err = dccp_connect(sk);
         if (err)
                 goto late_failure;
@@ -1050,7 +1049,7 @@ late_failure:
         dccp_set_state(sk, DCCP_CLOSED);
         __sk_dst_reset(sk);
 failure:
-        inet->dport = 0;
+        inet->inet_dport = 0;
         sk->sk_route_caps = 0;
         return err;
 }
@@ -1188,20 +1187,19 @@ static struct inet_protosw dccp_v6_protosw = {
         .protocol       = IPPROTO_DCCP,
         .prot           = &dccp_v6_prot,
         .ops            = &inet6_dccp_ops,
-        .capability     = -1,
         .flags          = INET_PROTOSW_ICSK,
 };
 
-static int dccp_v6_init_net(struct net *net)
+static int __net_init dccp_v6_init_net(struct net *net)
 {
-        int err;
+        if (dccp_hashinfo.bhash == NULL)
+                return -ESOCKTNOSUPPORT;
 
-        err = inet_ctl_sock_create(&net->dccp.v6_ctl_sk, PF_INET6,
-                                   SOCK_DCCP, IPPROTO_DCCP, net);
-        return err;
+        return inet_ctl_sock_create(&net->dccp.v6_ctl_sk, PF_INET6,
+                                    SOCK_DCCP, IPPROTO_DCCP, net);
 }
 
-static void dccp_v6_exit_net(struct net *net)
+static void __net_exit dccp_v6_exit_net(struct net *net)
 {
         inet_ctl_sock_destroy(net->dccp.v6_ctl_sk);
 }