1 files changed, 241 insertions, 114 deletions

diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index cf93cd1d857b..63ae94771b8e 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -36,11 +36,13 @@
 #include <net/sock.h>
 #include <net/checksum.h>
 #include <net/ip.h>
+#include <net/ipv6.h>
 #include <net/tcp_states.h>
 #include <asm/uaccess.h>
 #include <asm/ioctls.h>
 
 #include <linux/sunrpc/types.h>
+#include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/xdr.h>
 #include <linux/sunrpc/svcsock.h>
 #include <linux/sunrpc/stats.h>
@@ -58,7 +60,7 @@
  *	providing that certain rules are followed:
  *
  *	SK_CONN, SK_DATA, can be set or cleared at any time.
- *		after a set, svc_sock_enqueue must be called.	
+ *		after a set, svc_sock_enqueue must be called.
  *		after a clear, the socket must be read/accepted
  *		 if this succeeds, it must be set again.
  *	SK_CLOSE can set at any time. It is never cleared.
@@ -75,7 +77,7 @@
 
 
 static struct svc_sock *svc_setup_socket(struct svc_serv *, struct socket *,
-					 int *errp, int pmap_reg);
+					 int *errp, int flags);
 static void		svc_delete_socket(struct svc_sock *svsk);
 static void		svc_udp_data_ready(struct sock *, int);
 static int		svc_udp_recvfrom(struct svc_rqst *);
@@ -121,6 +123,41 @@ static inline void svc_reclassify_socket(struct socket *sock)
 }
 #endif
 
+static char *__svc_print_addr(struct sockaddr *addr, char *buf, size_t len)
+{
+	switch (addr->sa_family) {
+	case AF_INET:
+		snprintf(buf, len, "%u.%u.%u.%u, port=%u",
+			NIPQUAD(((struct sockaddr_in *) addr)->sin_addr),
+			htons(((struct sockaddr_in *) addr)->sin_port));
+		break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	case AF_INET6:
+		snprintf(buf, len, "%x:%x:%x:%x:%x:%x:%x:%x, port=%u",
+			NIP6(((struct sockaddr_in6 *) addr)->sin6_addr),
+			htons(((struct sockaddr_in6 *) addr)->sin6_port));
+		break;
+#endif
+	default:
+		snprintf(buf, len, "unknown address type: %d", addr->sa_family);
+		break;
+	}
+	return buf;
+}
+
+/**
+ * svc_print_addr - Format rq_addr field for printing
+ * @rqstp: svc_rqst struct containing address to print
+ * @buf: target buffer for formatted address
+ * @len: length of target buffer
+ *
+ */
+char *svc_print_addr(struct svc_rqst *rqstp, char *buf, size_t len)
+{
+	return __svc_print_addr(svc_addr(rqstp), buf, len);
+}
+EXPORT_SYMBOL_GPL(svc_print_addr);
+
 /*
  * Queue up an idle server thread.  Must have pool->sp_lock held.
  * Note: this is really a stack rather than a queue, so that we only
@@ -252,7 +289,7 @@ svc_sock_enqueue(struct svc_sock *svsk)
 			svsk->sk_sk, rqstp);
 		svc_thread_dequeue(pool, rqstp);
 		if (rqstp->rq_sock)
-			printk(KERN_ERR 
+			printk(KERN_ERR
 				"svc_sock_enqueue: server %p, rq_sock=%p!\n",
 				rqstp, rqstp->rq_sock);
 		rqstp->rq_sock = svsk;
@@ -410,6 +447,43 @@ svc_wake_up(struct svc_serv *serv)
 	}
 }
 
+union svc_pktinfo_u {
+	struct in_pktinfo pkti;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	struct in6_pktinfo pkti6;
+#endif
+};
+
+static void svc_set_cmsg_data(struct svc_rqst *rqstp, struct cmsghdr *cmh)
+{
+	switch (rqstp->rq_sock->sk_sk->sk_family) {
+	case AF_INET: {
+			struct in_pktinfo *pki = CMSG_DATA(cmh);
+
+			cmh->cmsg_level = SOL_IP;
+			cmh->cmsg_type = IP_PKTINFO;
+			pki->ipi_ifindex = 0;
+			pki->ipi_spec_dst.s_addr = rqstp->rq_daddr.addr.s_addr;
+			cmh->cmsg_len = CMSG_LEN(sizeof(*pki));
+		}
+		break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	case AF_INET6: {
+			struct in6_pktinfo *pki = CMSG_DATA(cmh);
+
+			cmh->cmsg_level = SOL_IPV6;
+			cmh->cmsg_type = IPV6_PKTINFO;
+			pki->ipi6_ifindex = 0;
+			ipv6_addr_copy(&pki->ipi6_addr,
+					&rqstp->rq_daddr.addr6);
+			cmh->cmsg_len = CMSG_LEN(sizeof(*pki));
+		}
+		break;
+#endif
+	}
+	return;
+}
+
 /*
  * Generic sendto routine
  */
@@ -419,9 +493,8 @@ svc_sendto(struct svc_rqst *rqstp, struct xdr_buf *xdr)
 	struct svc_sock	*svsk = rqstp->rq_sock;
 	struct socket	*sock = svsk->sk_sock;
 	int		slen;
-	char 		buffer[CMSG_SPACE(sizeof(struct in_pktinfo))];
+	char 		buffer[CMSG_SPACE(sizeof(union svc_pktinfo_u))];
 	struct cmsghdr *cmh = (struct cmsghdr *)buffer;
-	struct in_pktinfo *pki = (struct in_pktinfo *)CMSG_DATA(cmh);
 	int		len = 0;
 	int		result;
 	int		size;
@@ -429,25 +502,20 @@ svc_sendto(struct svc_rqst *rqstp, struct xdr_buf *xdr)
 	size_t		base = xdr->page_base;
 	unsigned int	pglen = xdr->page_len;
 	unsigned int	flags = MSG_MORE;
+	char		buf[RPC_MAX_ADDRBUFLEN];
 
 	slen = xdr->len;
 
 	if (rqstp->rq_prot == IPPROTO_UDP) {
-		/* set the source and destination */
-		struct msghdr	msg;
-		msg.msg_name    = &rqstp->rq_addr;
-		msg.msg_namelen = sizeof(rqstp->rq_addr);
-		msg.msg_iov     = NULL;
-		msg.msg_iovlen  = 0;
-		msg.msg_flags	= MSG_MORE;
-
-		msg.msg_control = cmh;
-		msg.msg_controllen = sizeof(buffer);
-		cmh->cmsg_len = CMSG_LEN(sizeof(*pki));
-		cmh->cmsg_level = SOL_IP;
-		cmh->cmsg_type = IP_PKTINFO;
-		pki->ipi_ifindex = 0;
-		pki->ipi_spec_dst.s_addr = rqstp->rq_daddr;
+		struct msghdr msg = {
+			.msg_name	= &rqstp->rq_addr,
+			.msg_namelen	= rqstp->rq_addrlen,
+			.msg_control	= cmh,
+			.msg_controllen	= sizeof(buffer),
+			.msg_flags	= MSG_MORE,
+		};
+
+		svc_set_cmsg_data(rqstp, cmh);
 
 		if (sock_sendmsg(sock, &msg, 0) < 0)
 			goto out;
@@ -484,16 +552,16 @@ svc_sendto(struct svc_rqst *rqstp, struct xdr_buf *xdr)
 	if (xdr->tail[0].iov_len) {
 		result = kernel_sendpage(sock, rqstp->rq_respages[0],
 					     ((unsigned long)xdr->tail[0].iov_base)
-					        & (PAGE_SIZE-1),
+						& (PAGE_SIZE-1),
 					     xdr->tail[0].iov_len, 0);
 
 		if (result > 0)
 			len += result;
 	}
 out:
-	dprintk("svc: socket %p sendto([%p %Zu... ], %d) = %d (addr %x)\n",
-			rqstp->rq_sock, xdr->head[0].iov_base, xdr->head[0].iov_len, xdr->len, len,
-		rqstp->rq_addr.sin_addr.s_addr);
+	dprintk("svc: socket %p sendto([%p %Zu... ], %d) = %d (addr %s)\n",
+		rqstp->rq_sock, xdr->head[0].iov_base, xdr->head[0].iov_len,
+		xdr->len, len, svc_print_addr(rqstp, buf, sizeof(buf)));
 
 	return len;
 }
@@ -568,31 +636,22 @@ svc_recv_available(struct svc_sock *svsk)
 static int
 svc_recvfrom(struct svc_rqst *rqstp, struct kvec *iov, int nr, int buflen)
 {
-	struct msghdr	msg;
-	struct socket	*sock;
-	int		len, alen;
-
-	rqstp->rq_addrlen = sizeof(rqstp->rq_addr);
-	sock = rqstp->rq_sock->sk_sock;
-
-	msg.msg_name    = &rqstp->rq_addr;
-	msg.msg_namelen = sizeof(rqstp->rq_addr);
-	msg.msg_control = NULL;
-	msg.msg_controllen = 0;
-
-	msg.msg_flags	= MSG_DONTWAIT;
+	struct svc_sock *svsk = rqstp->rq_sock;
+	struct msghdr msg = {
+		.msg_flags	= MSG_DONTWAIT,
+	};
+	int len;
 
-	len = kernel_recvmsg(sock, &msg, iov, nr, buflen, MSG_DONTWAIT);
+	len = kernel_recvmsg(svsk->sk_sock, &msg, iov, nr, buflen,
+				msg.msg_flags);
 
 	/* sock_recvmsg doesn't fill in the name/namelen, so we must..
-	 * possibly we should cache this in the svc_sock structure
-	 * at accept time. FIXME
 	 */
-	alen = sizeof(rqstp->rq_addr);
-	kernel_getpeername(sock, (struct sockaddr *)&rqstp->rq_addr, &alen);
+	memcpy(&rqstp->rq_addr, &svsk->sk_remote, svsk->sk_remotelen);
+	rqstp->rq_addrlen = svsk->sk_remotelen;
 
 	dprintk("svc: socket %p recvfrom(%p, %Zu) = %d\n",
-		rqstp->rq_sock, iov[0].iov_base, iov[0].iov_len, len);
+		svsk, iov[0].iov_base, iov[0].iov_len, len);
 
 	return len;
 }
@@ -662,6 +721,47 @@ svc_write_space(struct sock *sk)
 	}
 }
 
+static void svc_udp_get_sender_address(struct svc_rqst *rqstp,
+					struct sk_buff *skb)
+{
+	switch (rqstp->rq_sock->sk_sk->sk_family) {
+	case AF_INET: {
+		/* this seems to come from net/ipv4/udp.c:udp_recvmsg */
+			struct sockaddr_in *sin = svc_addr_in(rqstp);
+
+			sin->sin_family = AF_INET;
+			sin->sin_port = skb->h.uh->source;
+			sin->sin_addr.s_addr = skb->nh.iph->saddr;
+			rqstp->rq_addrlen = sizeof(struct sockaddr_in);
+			/* Remember which interface received this request */
+			rqstp->rq_daddr.addr.s_addr = skb->nh.iph->daddr;
+		}
+		break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	case AF_INET6: {
+		/* this is derived from net/ipv6/udp.c:udpv6_recvmesg */
+			struct sockaddr_in6 *sin6 = svc_addr_in6(rqstp);
+
+			sin6->sin6_family = AF_INET6;
+			sin6->sin6_port = skb->h.uh->source;
+			sin6->sin6_flowinfo = 0;
+			sin6->sin6_scope_id = 0;
+			if (ipv6_addr_type(&sin6->sin6_addr) &
+							IPV6_ADDR_LINKLOCAL)
+				sin6->sin6_scope_id = IP6CB(skb)->iif;
+			ipv6_addr_copy(&sin6->sin6_addr,
+							&skb->nh.ipv6h->saddr);
+			rqstp->rq_addrlen = sizeof(struct sockaddr_in);
+			/* Remember which interface received this request */
+			ipv6_addr_copy(&rqstp->rq_daddr.addr6,
+							&skb->nh.ipv6h->saddr);
+		}
+		break;
+#endif
+	}
+	return;
+}
+
 /*
  * Receive a datagram from a UDP socket.
  */
@@ -711,7 +811,7 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
 		tv.tv_sec = xtime.tv_sec;
 		tv.tv_usec = xtime.tv_nsec / NSEC_PER_USEC;
 		skb_set_timestamp(skb, &tv);
-		/* Don't enable netstamp, sunrpc doesn't 
+		/* Don't enable netstamp, sunrpc doesn't
 		   need that much accuracy */
 	}
 	skb_get_timestamp(skb, &svsk->sk_sk->sk_stamp);
@@ -725,13 +825,9 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
 	len  = skb->len - sizeof(struct udphdr);
 	rqstp->rq_arg.len = len;
 
-	rqstp->rq_prot        = IPPROTO_UDP;
+	rqstp->rq_prot = IPPROTO_UDP;
 
-	/* Get sender address */
-	rqstp->rq_addr.sin_family = AF_INET;
-	rqstp->rq_addr.sin_port = skb->h.uh->source;
-	rqstp->rq_addr.sin_addr.s_addr = skb->nh.iph->saddr;
-	rqstp->rq_daddr = skb->nh.iph->daddr;
+	svc_udp_get_sender_address(rqstp, skb);
 
 	if (skb_is_nonlinear(skb)) {
 		/* we have to copy */
@@ -743,7 +839,7 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
 			return 0;
 		}
 		local_bh_enable();
-		skb_free_datagram(svsk->sk_sk, skb); 
+		skb_free_datagram(svsk->sk_sk, skb);
 	} else {
 		/* we can use it in-place */
 		rqstp->rq_arg.head[0].iov_base = skb->data + sizeof(struct udphdr);
@@ -794,7 +890,7 @@ svc_udp_init(struct svc_sock *svsk)
 	svsk->sk_sendto = svc_udp_sendto;
 
 	/* initialise setting must have enough space to
-	 * receive and respond to one request.  
+	 * receive and respond to one request.
 	 * svc_udp_recvfrom will re-adjust if necessary
 	 */
 	svc_sock_setbufsize(svsk->sk_sock,
@@ -875,18 +971,36 @@ svc_tcp_data_ready(struct sock *sk, int count)
 		wake_up_interruptible(sk->sk_sleep);
 }
 
+static inline int svc_port_is_privileged(struct sockaddr *sin)
+{
+	switch (sin->sa_family) {
+	case AF_INET:
+		return ntohs(((struct sockaddr_in *)sin)->sin_port)
+			< PROT_SOCK;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+	case AF_INET6:
+		return ntohs(((struct sockaddr_in6 *)sin)->sin6_port)
+			< PROT_SOCK;
+#endif
+	default:
+		return 0;
+	}
+}
+
 /*
  * Accept a TCP connection
  */
 static void
 svc_tcp_accept(struct svc_sock *svsk)
 {
-	struct sockaddr_in sin;
+	struct sockaddr_storage addr;
+	struct sockaddr	*sin = (struct sockaddr *) &addr;
 	struct svc_serv	*serv = svsk->sk_server;
 	struct socket	*sock = svsk->sk_sock;
 	struct socket	*newsock;
 	struct svc_sock	*newsvsk;
 	int		err, slen;
+	char		buf[RPC_MAX_ADDRBUFLEN];
 
 	dprintk("svc: tcp_accept %p sock %p\n", svsk, sock);
 	if (!sock)
@@ -907,8 +1021,7 @@ svc_tcp_accept(struct svc_sock *svsk)
 	set_bit(SK_CONN, &svsk->sk_flags);
 	svc_sock_enqueue(svsk);
 
-	slen = sizeof(sin);
-	err = kernel_getpeername(newsock, (struct sockaddr *) &sin, &slen);
+	err = kernel_getpeername(newsock, sin, &slen);
 	if (err < 0) {
 		if (net_ratelimit())
 			printk(KERN_WARNING "%s: peername failed (err %d)!\n",
@@ -917,27 +1030,30 @@ svc_tcp_accept(struct svc_sock *svsk)
 	}
 
 	/* Ideally, we would want to reject connections from unauthorized
-	 * hosts here, but when we get encription, the IP of the host won't
-	 * tell us anything. For now just warn about unpriv connections.
+	 * hosts here, but when we get encryption, the IP of the host won't
+	 * tell us anything.  For now just warn about unpriv connections.
 	 */
-	if (ntohs(sin.sin_port) >= 1024) {
+	if (!svc_port_is_privileged(sin)) {
 		dprintk(KERN_WARNING
-			"%s: connect from unprivileged port: %u.%u.%u.%u:%d\n",
-			serv->sv_name, 
-			NIPQUAD(sin.sin_addr.s_addr), ntohs(sin.sin_port));
+			"%s: connect from unprivileged port: %s\n",
+			serv->sv_name,
+			__svc_print_addr(sin, buf, sizeof(buf)));
 	}
-
-	dprintk("%s: connect from %u.%u.%u.%u:%04x\n", serv->sv_name,
-			NIPQUAD(sin.sin_addr.s_addr), ntohs(sin.sin_port));
+	dprintk("%s: connect from %s\n", serv->sv_name,
+		__svc_print_addr(sin, buf, sizeof(buf)));
 
 	/* make sure that a write doesn't block forever when
 	 * low on memory
 	 */
 	newsock->sk->sk_sndtimeo = HZ*30;
 
-	if (!(newsvsk = svc_setup_socket(serv, newsock, &err, 0)))
+	if (!(newsvsk = svc_setup_socket(serv, newsock, &err,
+				 (SVC_SOCK_ANONYMOUS | SVC_SOCK_TEMPORARY))))
 		goto failed;
+	memcpy(&newsvsk->sk_remote, sin, slen);
+	newsvsk->sk_remotelen = slen;
 
+	svc_sock_received(newsvsk);
 
 	/* make sure that we don't have too many active connections.
 	 * If we have, something must be dropped.
@@ -960,11 +1076,9 @@ svc_tcp_accept(struct svc_sock *svsk)
 					"sockets, consider increasing the "
 					"number of nfsd threads\n",
 						   serv->sv_name);
-				printk(KERN_NOTICE "%s: last TCP connect from "
-					"%u.%u.%u.%u:%d\n",
-					serv->sv_name,
-					NIPQUAD(sin.sin_addr.s_addr),
-					ntohs(sin.sin_port));
+				printk(KERN_NOTICE
+				       "%s: last TCP connect from %s\n",
+				       serv->sv_name, buf);
 			}
 			/*
 			 * Always select the oldest socket. It's not fair,
@@ -1038,7 +1152,7 @@ svc_tcp_recvfrom(struct svc_rqst *rqstp)
 		 * on the number of threads which will access the socket.
 		 *
 		 * rcvbuf just needs to be able to hold a few requests.
-		 * Normally they will be removed from the queue 
+		 * Normally they will be removed from the queue
 		 * as soon a a complete request arrives.
 		 */
 		svc_sock_setbufsize(svsk->sk_sock,
@@ -1063,7 +1177,7 @@ svc_tcp_recvfrom(struct svc_rqst *rqstp)
 
 		if (len < want) {
 			dprintk("svc: short recvfrom while reading record length (%d of %lu)\n",
-			        len, want);
+				len, want);
 			svc_sock_received(svsk);
 			return -EAGAIN; /* record header not complete */
 		}
@@ -1221,7 +1335,7 @@ svc_tcp_init(struct svc_sock *svsk)
 		tp->nonagle = 1;        /* disable Nagle's algorithm */
 
 		/* initialise setting must have enough space to
-		 * receive and respond to one request.  
+		 * receive and respond to one request.
 		 * svc_tcp_recvfrom will re-adjust if necessary
 		 */
 		svc_sock_setbufsize(svsk->sk_sock,
@@ -1230,7 +1344,7 @@ svc_tcp_init(struct svc_sock *svsk)
 
 		set_bit(SK_CHNGBUF, &svsk->sk_flags);
 		set_bit(SK_DATA, &svsk->sk_flags);
-		if (sk->sk_state != TCP_ESTABLISHED) 
+		if (sk->sk_state != TCP_ESTABLISHED)
 			set_bit(SK_CLOSE, &svsk->sk_flags);
 	}
 }
@@ -1246,7 +1360,7 @@ svc_sock_update_bufs(struct svc_serv *serv)
 
 	spin_lock_bh(&serv->sv_lock);
 	list_for_each(le, &serv->sv_permsocks) {
-		struct svc_sock *svsk = 
+		struct svc_sock *svsk =
 			list_entry(le, struct svc_sock, sk_list);
 		set_bit(SK_CHNGBUF, &svsk->sk_flags);
 	}
@@ -1266,7 +1380,7 @@ svc_sock_update_bufs(struct svc_serv *serv)
 int
 svc_recv(struct svc_rqst *rqstp, long timeout)
 {
-	struct svc_sock		*svsk =NULL;
+	struct svc_sock		*svsk = NULL;
 	struct svc_serv		*serv = rqstp->rq_server;
 	struct svc_pool		*pool = rqstp->rq_pool;
 	int			len, i;
@@ -1278,11 +1392,11 @@ svc_recv(struct svc_rqst *rqstp, long timeout)
 		rqstp, timeout);
 
 	if (rqstp->rq_sock)
-		printk(KERN_ERR 
+		printk(KERN_ERR
 			"svc_recv: service %p, socket not NULL!\n",
 			 rqstp);
 	if (waitqueue_active(&rqstp->rq_wait))
-		printk(KERN_ERR 
+		printk(KERN_ERR
 			"svc_recv: service %p, wait queue active!\n",
 			 rqstp);
 
@@ -1363,7 +1477,7 @@ svc_recv(struct svc_rqst *rqstp, long timeout)
 	svsk->sk_lastrecv = get_seconds();
 	clear_bit(SK_OLD, &svsk->sk_flags);
 
-	rqstp->rq_secure  = ntohs(rqstp->rq_addr.sin_port) < 1024;
+	rqstp->rq_secure = svc_port_is_privileged(svc_addr(rqstp));
 	rqstp->rq_chandle.defer = svc_defer;
 
 	if (serv->sv_stats)
@@ -1371,7 +1485,7 @@ svc_recv(struct svc_rqst *rqstp, long timeout)
 	return len;
 }
 
-/* 
+/*
  * Drop request
  */
 void
@@ -1476,12 +1590,14 @@ svc_age_temp_sockets(unsigned long closure)
  * Initialize socket for RPC use and create svc_sock struct
  * XXX: May want to setsockopt SO_SNDBUF and SO_RCVBUF.
  */
-static struct svc_sock *
-svc_setup_socket(struct svc_serv *serv, struct socket *sock,
-					int *errp, int pmap_register)
+static struct svc_sock *svc_setup_socket(struct svc_serv *serv,
+						struct socket *sock,
+						int *errp, int flags)
 {
 	struct svc_sock	*svsk;
 	struct sock	*inet;
+	int		pmap_register = !(flags & SVC_SOCK_ANONYMOUS);
+	int		is_temporary = flags & SVC_SOCK_TEMPORARY;
 
 	dprintk("svc: svc_setup_socket %p\n", sock);
 	if (!(svsk = kzalloc(sizeof(*svsk), GFP_KERNEL))) {
@@ -1523,7 +1639,7 @@ svc_setup_socket(struct svc_serv *serv, struct socket *sock,
 		svc_tcp_init(svsk);
 
 	spin_lock_bh(&serv->sv_lock);
-	if (!pmap_register) {
+	if (is_temporary) {
 		set_bit(SK_TEMP, &svsk->sk_flags);
 		list_add(&svsk->sk_list, &serv->sv_tempsocks);
 		serv->sv_tmpcnt++;
@@ -1543,8 +1659,6 @@ svc_setup_socket(struct svc_serv *serv, struct socket *sock,
 	dprintk("svc: svc_setup_socket created %p (inet %p)\n",
 				svsk, svsk->sk_sk);
 
-	clear_bit(SK_BUSY, &svsk->sk_flags);
-	svc_sock_enqueue(svsk);
 	return svsk;
 }
 
@@ -1567,9 +1681,11 @@ int svc_addsock(struct svc_serv *serv,
 	else if (so->state > SS_UNCONNECTED)
 		err = -EISCONN;
 	else {
-		svsk = svc_setup_socket(serv, so, &err, 1);
-		if (svsk)
+		svsk = svc_setup_socket(serv, so, &err, SVC_SOCK_DEFAULTS);
+		if (svsk) {
+			svc_sock_received(svsk);
 			err = 0;
+		}
 	}
 	if (err) {
 		sockfd_put(so);
@@ -1583,18 +1699,18 @@ EXPORT_SYMBOL_GPL(svc_addsock);
 /*
  * Create socket for RPC service.
  */
-static int
-svc_create_socket(struct svc_serv *serv, int protocol, struct sockaddr_in *sin)
+static int svc_create_socket(struct svc_serv *serv, int protocol,
+				struct sockaddr *sin, int len, int flags)
 {
 	struct svc_sock	*svsk;
 	struct socket	*sock;
 	int		error;
 	int		type;
+	char		buf[RPC_MAX_ADDRBUFLEN];
 
-	dprintk("svc: svc_create_socket(%s, %d, %u.%u.%u.%u:%d)\n",
-				serv->sv_program->pg_name, protocol,
-				NIPQUAD(sin->sin_addr.s_addr),
-				ntohs(sin->sin_port));
+	dprintk("svc: svc_create_socket(%s, %d, %s)\n",
+			serv->sv_program->pg_name, protocol,
+			__svc_print_addr(sin, buf, sizeof(buf)));
 
 	if (protocol != IPPROTO_UDP && protocol != IPPROTO_TCP) {
 		printk(KERN_WARNING "svc: only UDP and TCP "
@@ -1603,15 +1719,15 @@ svc_create_socket(struct svc_serv *serv, int protocol, struct sockaddr_in *sin)
 	}
 	type = (protocol == IPPROTO_UDP)? SOCK_DGRAM : SOCK_STREAM;
 
-	if ((error = sock_create_kern(PF_INET, type, protocol, &sock)) < 0)
+	error = sock_create_kern(sin->sa_family, type, protocol, &sock);
+	if (error < 0)
 		return error;
 
 	svc_reclassify_socket(sock);
 
 	if (type == SOCK_STREAM)
-		sock->sk->sk_reuse = 1; /* allow address reuse */
-	error = kernel_bind(sock, (struct sockaddr *) sin,
-					sizeof(*sin));
+		sock->sk->sk_reuse = 1;		/* allow address reuse */
+	error = kernel_bind(sock, sin, len);
 	if (error < 0)
 		goto bummer;
 
@@ -1620,8 +1736,10 @@ svc_create_socket(struct svc_serv *serv, int protocol, struct sockaddr_in *sin)
 			goto bummer;
 	}
 
-	if ((svsk = svc_setup_socket(serv, sock, &error, 1)) != NULL)
-		return 0;
+	if ((svsk = svc_setup_socket(serv, sock, &error, flags)) != NULL) {
+		svc_sock_received(svsk);
+		return ntohs(inet_sk(svsk->sk_sk)->sport);
+	}
 
 bummer:
 	dprintk("svc: svc_create_socket error = %d\n", -error);
@@ -1651,7 +1769,7 @@ svc_delete_socket(struct svc_sock *svsk)
 
 	if (!test_and_set_bit(SK_DETACHED, &svsk->sk_flags))
 		list_del_init(&svsk->sk_list);
-    	/*
+	/*
 	 * We used to delete the svc_sock from whichever list
 	 * it's sk_ready node was on, but we don't actually
 	 * need to.  This is because the only time we're called
@@ -1681,23 +1799,30 @@ void svc_close_socket(struct svc_sock *svsk)
 	svc_sock_put(svsk);
 }
 
-/*
- * Make a socket for nfsd and lockd
+/**
+ * svc_makesock - Make a socket for nfsd and lockd
+ * @serv: RPC server structure
+ * @protocol: transport protocol to use
+ * @port: port to use
+ * @flags: requested socket characteristics
+ *
  */
-int
-svc_makesock(struct svc_serv *serv, int protocol, unsigned short port)
+int svc_makesock(struct svc_serv *serv, int protocol, unsigned short port,
+			int flags)
 {
-	struct sockaddr_in	sin;
+	struct sockaddr_in sin = {
+		.sin_family		= AF_INET,
+		.sin_addr.s_addr	= INADDR_ANY,
+		.sin_port		= htons(port),
+	};
 
 	dprintk("svc: creating socket proto = %d\n", protocol);
-	sin.sin_family      = AF_INET;
-	sin.sin_addr.s_addr = INADDR_ANY;
-	sin.sin_port        = htons(port);
-	return svc_create_socket(serv, protocol, &sin);
+	return svc_create_socket(serv, protocol, (struct sockaddr *) &sin,
+							sizeof(sin), flags);
 }
 
 /*
- * Handle defer and revisit of requests 
+ * Handle defer and revisit of requests
  */
 
 static void svc_revisit(struct cache_deferred_req *dreq, int too_many)
@@ -1742,7 +1867,8 @@ svc_defer(struct cache_req *req)
 
 		dr->handle.owner = rqstp->rq_server;
 		dr->prot = rqstp->rq_prot;
-		dr->addr = rqstp->rq_addr;
+		memcpy(&dr->addr, &rqstp->rq_addr, rqstp->rq_addrlen);
+		dr->addrlen = rqstp->rq_addrlen;
 		dr->daddr = rqstp->rq_daddr;
 		dr->argslen = rqstp->rq_arg.len >> 2;
 		memcpy(dr->args, rqstp->rq_arg.head[0].iov_base-skip, dr->argslen<<2);
@@ -1766,7 +1892,8 @@ static int svc_deferred_recv(struct svc_rqst *rqstp)
 	rqstp->rq_arg.page_len = 0;
 	rqstp->rq_arg.len = dr->argslen<<2;
 	rqstp->rq_prot        = dr->prot;
-	rqstp->rq_addr        = dr->addr;
+	memcpy(&rqstp->rq_addr, &dr->addr, dr->addrlen);
+	rqstp->rq_addrlen     = dr->addrlen;
 	rqstp->rq_daddr       = dr->daddr;
 	rqstp->rq_respages    = rqstp->rq_pages;
 	return dr->argslen<<2;
@@ -1776,7 +1903,7 @@ static int svc_deferred_recv(struct svc_rqst *rqstp)
 static struct svc_deferred_req *svc_deferred_dequeue(struct svc_sock *svsk)
 {
 	struct svc_deferred_req *dr = NULL;
-	
+
 	if (!test_bit(SK_DEFERRED, &svsk->sk_flags))
 		return NULL;
 	spin_lock_bh(&svsk->sk_defer_lock);