@@ -33,6 +33,7 @@ void raw_icmp_error(struct sk_buff *, int, u32);
int raw_local_deliver(struct sk_buff *, int);
int raw_rcv(struct sock *, struct sk_buff *);
+int rawv4_sendmsg(struct sock *sk, struct msghdr *msg, size_t len);
#define RAW_HTABLE_SIZE MAX_INET_PROTOS
@@ -499,7 +499,7 @@ static int raw_getfrag(void *from, char *to, int offset, int len, int odd,
return ip_generic_getfrag(rfv->msg, to, offset, len, odd, skb);
}
-static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
+int rawv4_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
{
struct inet_sock *inet = inet_sk(sk);
struct net *net = sock_net(sk);
@@ -692,6 +692,7 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
err = 0;
goto done;
}
+EXPORT_SYMBOL_GPL(rawv4_sendmsg);
static void raw_close(struct sock *sk, long timeout)
{
@@ -969,7 +970,7 @@ struct proto raw_prot = {
.init = raw_init,
.setsockopt = raw_setsockopt,
.getsockopt = raw_getsockopt,
- .sendmsg = raw_sendmsg,
+ .sendmsg = rawv4_sendmsg,
.recvmsg = raw_recvmsg,
.bind = raw_bind,
.backlog_rcv = raw_rcv_skb,
@@ -844,6 +844,20 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
fl6.flowlabel = np->flow_label;
}
+ if (daddr && ipv6_addr_v4mapped(daddr)) {
+ struct sockaddr_in sin;
+
+ sin.sin_family = AF_INET;
+ sin.sin_port = sin6 ? sin6->sin6_port : inet->inet_dport;
+ sin.sin_addr.s_addr = daddr->s6_addr32[3];
+ msg->msg_name = &sin;
+ msg->msg_namelen = sizeof(sin);
+
+ if (__ipv6_only_sock(sk))
+ return -ENETUNREACH;
+ return rawv4_sendmsg(sk, msg, len);
+ }
+
if (fl6.flowi6_oif == 0)
fl6.flowi6_oif = sk->sk_bound_dev_if;