Merge branch 'linus' into x86/threadinfotip-x86-threadinfo-2008-06-23_09.53_Mon

18 files changed, 235 insertions, 236 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e591e09e5e4e..147588f4c7c0 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -731,8 +731,13 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
 						onlink = -1;
 
 					spin_lock(&ifa->lock);
-					lifetime = min_t(unsigned long,
-							 ifa->valid_lft, 0x7fffffffUL/HZ);
+
+					lifetime = addrconf_timeout_fixup(ifa->valid_lft, HZ);
+					/*
+					 * Note: Because this address is
+					 * not permanent, lifetime <
+					 * LONG_MAX / HZ here.
+					 */
 					if (time_before(expires,
 							ifa->tstamp + lifetime * HZ))
 						expires = ifa->tstamp + lifetime * HZ;
@@ -1722,7 +1727,6 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
 	__u32 valid_lft;
 	__u32 prefered_lft;
 	int addr_type;
-	unsigned long rt_expires;
 	struct inet6_dev *in6_dev;
 
 	pinfo = (struct prefix_info *) opt;
@@ -1764,41 +1768,49 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
 	 *	2) Configure prefixes with the auto flag set
 	 */
 
-	/* Avoid arithmetic overflow. Really, we could
-	   save rt_expires in seconds, likely valid_lft,
-	   but it would require division in fib gc, that it
-	   not good.
-	 */
-	if (valid_lft >= 0x7FFFFFFF/HZ)
-		rt_expires = 0x7FFFFFFF - (0x7FFFFFFF % HZ);
-	else
-		rt_expires = valid_lft * HZ;
-
-	/*
-	 * We convert this (in jiffies) to clock_t later.
-	 * Avoid arithmetic overflow there as well.
-	 * Overflow can happen only if HZ < USER_HZ.
-	 */
-	if (HZ < USER_HZ && rt_expires > 0x7FFFFFFF / USER_HZ)
-		rt_expires = 0x7FFFFFFF / USER_HZ;
-
 	if (pinfo->onlink) {
 		struct rt6_info *rt;
+		unsigned long rt_expires;
+
+		/* Avoid arithmetic overflow. Really, we could
+		 * save rt_expires in seconds, likely valid_lft,
+		 * but it would require division in fib gc, that it
+		 * not good.
+		 */
+		if (HZ > USER_HZ)
+			rt_expires = addrconf_timeout_fixup(valid_lft, HZ);
+		else
+			rt_expires = addrconf_timeout_fixup(valid_lft, USER_HZ);
+
+		if (addrconf_finite_timeout(rt_expires))
+			rt_expires *= HZ;
+
 		rt = rt6_lookup(dev_net(dev), &pinfo->prefix, NULL,
 				dev->ifindex, 1);
 
 		if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
-			if (rt->rt6i_flags&RTF_EXPIRES) {
-				if (valid_lft == 0) {
-					ip6_del_rt(rt);
-					rt = NULL;
-				} else {
-					rt->rt6i_expires = jiffies + rt_expires;
-				}
+			/* Autoconf prefix route */
+			if (valid_lft == 0) {
+				ip6_del_rt(rt);
+				rt = NULL;
+			} else if (addrconf_finite_timeout(rt_expires)) {
+				/* not infinity */
+				rt->rt6i_expires = jiffies + rt_expires;
+				rt->rt6i_flags |= RTF_EXPIRES;
+			} else {
+				rt->rt6i_flags &= ~RTF_EXPIRES;
+				rt->rt6i_expires = 0;
 			}
 		} else if (valid_lft) {
+			clock_t expires = 0;
+			int flags = RTF_ADDRCONF | RTF_PREFIX_RT;
+			if (addrconf_finite_timeout(rt_expires)) {
+				/* not infinity */
+				flags |= RTF_EXPIRES;
+				expires = jiffies_to_clock_t(rt_expires);
+			}
 			addrconf_prefix_route(&pinfo->prefix, pinfo->prefix_len,
-					      dev, jiffies_to_clock_t(rt_expires), RTF_ADDRCONF|RTF_EXPIRES|RTF_PREFIX_RT);
+					      dev, expires, flags);
 		}
 		if (rt)
 			dst_release(&rt->u.dst);
@@ -2014,17 +2026,22 @@ err_exit:
  *	Manual configuration of address on an interface
  */
 static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
-			  int plen, __u8 ifa_flags, __u32 prefered_lft,
+			  unsigned int plen, __u8 ifa_flags, __u32 prefered_lft,
 			  __u32 valid_lft)
 {
 	struct inet6_ifaddr *ifp;
 	struct inet6_dev *idev;
 	struct net_device *dev;
 	int scope;
-	u32 flags = RTF_EXPIRES;
+	u32 flags;
+	clock_t expires;
+	unsigned long timeout;
 
 	ASSERT_RTNL();
 
+	if (plen > 128)
+		return -EINVAL;
+
 	/* check the lifetime */
 	if (!valid_lft || prefered_lft > valid_lft)
 		return -EINVAL;
@@ -2038,17 +2055,23 @@ static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
 
 	scope = ipv6_addr_scope(pfx);
 
-	if (valid_lft == INFINITY_LIFE_TIME) {
-		ifa_flags |= IFA_F_PERMANENT;
+	timeout = addrconf_timeout_fixup(valid_lft, HZ);
+	if (addrconf_finite_timeout(timeout)) {
+		expires = jiffies_to_clock_t(timeout * HZ);
+		valid_lft = timeout;
+		flags = RTF_EXPIRES;
+	} else {
+		expires = 0;
 		flags = 0;
-	} else if (valid_lft >= 0x7FFFFFFF/HZ)
-		valid_lft = 0x7FFFFFFF/HZ;
+		ifa_flags |= IFA_F_PERMANENT;
+	}
 
-	if (prefered_lft == 0)
-		ifa_flags |= IFA_F_DEPRECATED;
-	else if ((prefered_lft >= 0x7FFFFFFF/HZ) &&
-		 (prefered_lft != INFINITY_LIFE_TIME))
-		prefered_lft = 0x7FFFFFFF/HZ;
+	timeout = addrconf_timeout_fixup(prefered_lft, HZ);
+	if (addrconf_finite_timeout(timeout)) {
+		if (timeout == 0)
+			ifa_flags |= IFA_F_DEPRECATED;
+		prefered_lft = timeout;
+	}
 
 	ifp = ipv6_add_addr(idev, pfx, plen, scope, ifa_flags);
 
@@ -2060,7 +2083,7 @@ static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
 		spin_unlock_bh(&ifp->lock);
 
 		addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev,
-				      jiffies_to_clock_t(valid_lft * HZ), flags);
+				      expires, flags);
 		/*
 		 * Note that section 3.1 of RFC 4429 indicates
 		 * that the Optimistic flag should not be set for
@@ -2076,12 +2099,15 @@ static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
 }
 
 static int inet6_addr_del(struct net *net, int ifindex, struct in6_addr *pfx,
-			  int plen)
+			  unsigned int plen)
 {
 	struct inet6_ifaddr *ifp;
 	struct inet6_dev *idev;
 	struct net_device *dev;
 
+	if (plen > 128)
+		return -EINVAL;
+
 	dev = __dev_get_by_index(net, ifindex);
 	if (!dev)
 		return -ENODEV;
@@ -3148,22 +3174,30 @@ inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags,
 			     u32 prefered_lft, u32 valid_lft)
 {
-	u32 flags = RTF_EXPIRES;
+	u32 flags;
+	clock_t expires;
+	unsigned long timeout;
 
 	if (!valid_lft || (prefered_lft > valid_lft))
 		return -EINVAL;
 
-	if (valid_lft == INFINITY_LIFE_TIME) {
-		ifa_flags |= IFA_F_PERMANENT;
+	timeout = addrconf_timeout_fixup(valid_lft, HZ);
+	if (addrconf_finite_timeout(timeout)) {
+		expires = jiffies_to_clock_t(timeout * HZ);
+		valid_lft = timeout;
+		flags = RTF_EXPIRES;
+	} else {
+		expires = 0;
 		flags = 0;
-	} else if (valid_lft >= 0x7FFFFFFF/HZ)
-		valid_lft = 0x7FFFFFFF/HZ;
+		ifa_flags |= IFA_F_PERMANENT;
+	}
 
-	if (prefered_lft == 0)
-		ifa_flags |= IFA_F_DEPRECATED;
-	else if ((prefered_lft >= 0x7FFFFFFF/HZ) &&
-		 (prefered_lft != INFINITY_LIFE_TIME))
-		prefered_lft = 0x7FFFFFFF/HZ;
+	timeout = addrconf_timeout_fixup(prefered_lft, HZ);
+	if (addrconf_finite_timeout(timeout)) {
+		if (timeout == 0)
+			ifa_flags |= IFA_F_DEPRECATED;
+		prefered_lft = timeout;
+	}
 
 	spin_lock_bh(&ifp->lock);
 	ifp->flags = (ifp->flags & ~(IFA_F_DEPRECATED | IFA_F_PERMANENT | IFA_F_NODAD | IFA_F_HOMEADDRESS)) | ifa_flags;
@@ -3176,7 +3210,7 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags,
 		ipv6_ifa_notify(0, ifp);
 
 	addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->idev->dev,
-			      jiffies_to_clock_t(valid_lft * HZ), flags);
+			      expires, flags);
 	addrconf_verify(0);
 
 	return 0;
@@ -4242,7 +4276,7 @@ static void addrconf_sysctl_register(struct inet6_dev *idev)
 	neigh_sysctl_register(idev->dev, idev->nd_parms, NET_IPV6,
 			      NET_IPV6_NEIGH, "ipv6",
 			      &ndisc_ifinfo_sysctl_change,
-			      NULL);
+			      ndisc_ifinfo_sysctl_strategy);
 	__addrconf_sysctl_register(dev_net(idev->dev), idev->dev->name,
 			idev->dev->ifindex, idev, &idev->cnf);
 }
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 3c6aafb02183..e84b3fd17fb4 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -191,7 +191,7 @@ lookup_protocol:
 	np->mcast_hops	= -1;
 	np->mc_loop	= 1;
 	np->pmtudisc	= IPV6_PMTUDISC_WANT;
-	np->ipv6only	= init_net.ipv6.sysctl.bindv6only;
+	np->ipv6only	= net->ipv6.sysctl.bindv6only;
 
 	/* Init the ipv4 part of the socket since we can have sockets
 	 * using v6 API for ipv4.
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 94fa6ae77cfe..0f0f94a40335 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -496,7 +496,8 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
 	return 0;
 }
 
-int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
+int datagram_send_ctl(struct net *net,
+		      struct msghdr *msg, struct flowi *fl,
 		      struct ipv6_txoptions *opt,
 		      int *hlimit, int *tclass)
 {
@@ -509,7 +510,6 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
 
 	for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
 		int addr_type;
-		struct net_device *dev = NULL;
 
 		if (!CMSG_OK(msg, cmsg)) {
 			err = -EINVAL;
@@ -522,6 +522,9 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
 		switch (cmsg->cmsg_type) {
 		case IPV6_PKTINFO:
 		case IPV6_2292PKTINFO:
+		    {
+			struct net_device *dev = NULL;
+
 			if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct in6_pktinfo))) {
 				err = -EINVAL;
 				goto exit_f;
@@ -535,32 +538,32 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
 				fl->oif = src_info->ipi6_ifindex;
 			}
 
-			addr_type = ipv6_addr_type(&src_info->ipi6_addr);
+			addr_type = __ipv6_addr_type(&src_info->ipi6_addr);
 
-			if (addr_type == IPV6_ADDR_ANY)
-				break;
+			if (fl->oif) {
+				dev = dev_get_by_index(net, fl->oif);
+				if (!dev)
+					return -ENODEV;
+			} else if (addr_type & IPV6_ADDR_LINKLOCAL)
+				return -EINVAL;
 
-			if (addr_type & IPV6_ADDR_LINKLOCAL) {
-				if (!src_info->ipi6_ifindex)
-					return -EINVAL;
-				else {
-					dev = dev_get_by_index(&init_net, src_info->ipi6_ifindex);
-					if (!dev)
-						return -ENODEV;
-				}
-			}
-			if (!ipv6_chk_addr(&init_net, &src_info->ipi6_addr,
-					   dev, 0)) {
-				if (dev)
-					dev_put(dev);
-				err = -EINVAL;
-				goto exit_f;
+			if (addr_type != IPV6_ADDR_ANY) {
+				int strict = __ipv6_addr_src_scope(addr_type) <= IPV6_ADDR_SCOPE_LINKLOCAL;
+				if (!ipv6_chk_addr(net, &src_info->ipi6_addr,
+						   strict ? dev : NULL, 0))
+					err = -EINVAL;
+				else
+					ipv6_addr_copy(&fl->fl6_src, &src_info->ipi6_addr);
 			}
+
 			if (dev)
 				dev_put(dev);
 
-			ipv6_addr_copy(&fl->fl6_src, &src_info->ipi6_addr);
+			if (err)
+				goto exit_f;
+
 			break;
+		    }
 
 		case IPV6_FLOWINFO:
 			if (cmsg->cmsg_len < CMSG_LEN(4)) {
@@ -702,6 +705,11 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
 			}
 
 			*hlimit = *(int *)CMSG_DATA(cmsg);
+			if (*hlimit < -1 || *hlimit > 0xff) {
+				err = -EINVAL;
+				goto exit_f;
+			}
+
 			break;
 
 		case IPV6_TCLASS:
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index eb7a940310f4..37a4e777e347 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -354,7 +354,7 @@ fl_create(struct net *net, struct in6_flowlabel_req *freq, char __user *optval,
 		msg.msg_control = (void*)(fl->opt+1);
 		flowi.oif = 0;
 
-		err = datagram_send_ctl(&msg, &flowi, fl->opt, &junk, &junk);
+		err = datagram_send_ctl(net, &msg, &flowi, fl->opt, &junk, &junk);
 		if (err)
 			goto done;
 		err = -EINVAL;
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 4e5c8615832c..17eb48b8e329 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -102,6 +102,15 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 	if (hdr->version != 6)
 		goto err;
 
+	/*
+	 * RFC4291 2.5.3
+	 * A packet received on an interface with a destination address
+	 * of loopback must be dropped.
+	 */
+	if (!(dev->flags & IFF_LOOPBACK) &&
+	    ipv6_addr_loopback(&hdr->daddr))
+		goto err;
+
 	skb->transport_header = skb->network_header + sizeof(*hdr);
 	IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
 
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 0af2e055f883..48cdce9c696c 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -780,7 +780,7 @@ slow_path:
 		 *	Allocate buffer.
 		 */
 
-		if ((frag = alloc_skb(len+hlen+sizeof(struct frag_hdr)+LL_RESERVED_SPACE(rt->u.dst.dev), GFP_ATOMIC)) == NULL) {
+		if ((frag = alloc_skb(len+hlen+sizeof(struct frag_hdr)+LL_ALLOCATED_SPACE(rt->u.dst.dev), GFP_ATOMIC)) == NULL) {
 			NETDEBUG(KERN_INFO "IPv6: frag: no memory for new fragment!\n");
 			IP6_INC_STATS(ip6_dst_idev(skb->dst),
 				      IPSTATS_MIB_FRAGFAILS);
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 2de3c464fe75..14796181e8b5 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -197,7 +197,7 @@ static int ip6mr_vif_seq_show(struct seq_file *seq, void *v)
 		const char *name = vif->dev ? vif->dev->name : "none";
 
 		seq_printf(seq,
-			   "%2Zd %-10s %8ld %7ld  %8ld %7ld %05X\n",
+			   "%2td %-10s %8ld %7ld  %8ld %7ld %05X\n",
 			   vif - vif6_table,
 			   name, vif->bytes_in, vif->pkt_in,
 			   vif->bytes_out, vif->pkt_out,
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 56d55fecf8ec..86e28a75267f 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -67,7 +67,7 @@ int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
 
 	/* RA packet may be delivered ONLY to IPPROTO_RAW socket */
 	if (sk->sk_type != SOCK_RAW || inet_sk(sk)->num != IPPROTO_RAW)
-		return -EINVAL;
+		return -ENOPROTOOPT;
 
 	new_ra = (sel>=0) ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
 
@@ -161,9 +161,17 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 			struct ipv6_txoptions *opt;
 			struct sk_buff *pktopt;
 
-			if (sk->sk_protocol != IPPROTO_UDP &&
-			    sk->sk_protocol != IPPROTO_UDPLITE &&
-			    sk->sk_protocol != IPPROTO_TCP)
+			if (sk->sk_type == SOCK_RAW)
+				break;
+
+			if (sk->sk_protocol == IPPROTO_UDP ||
+			    sk->sk_protocol == IPPROTO_UDPLITE) {
+				struct udp_sock *up = udp_sk(sk);
+				if (up->pending == AF_INET6) {
+					retv = -EBUSY;
+					break;
+				}
+			} else if (sk->sk_protocol != IPPROTO_TCP)
 				break;
 
 			if (sk->sk_state != TCP_ESTABLISHED) {
@@ -337,18 +345,21 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 	case IPV6_DSTOPTS:
 	{
 		struct ipv6_txoptions *opt;
+
+		/* remove any sticky options header with a zero option
+		 * length, per RFC3542.
+		 */
 		if (optlen == 0)
 			optval = NULL;
+		else if (optlen < sizeof(struct ipv6_opt_hdr) ||
+			 optlen & 0x7 || optlen > 8 * 255)
+			goto e_inval;
 
 		/* hop-by-hop / destination options are privileged option */
 		retv = -EPERM;
 		if (optname != IPV6_RTHDR && !capable(CAP_NET_RAW))
 			break;
 
-		if (optlen < sizeof(struct ipv6_opt_hdr) ||
-		    optlen & 0x7 || optlen > 8 * 255)
-			goto e_inval;
-
 		opt = ipv6_renew_options(sk, np->opt, optname,
 					 (struct ipv6_opt_hdr __user *)optval,
 					 optlen);
@@ -416,7 +427,7 @@ sticky_done:
 		msg.msg_controllen = optlen;
 		msg.msg_control = (void*)(opt+1);
 
-		retv = datagram_send_ctl(&msg, &fl, opt, &junk, &junk);
+		retv = datagram_send_ctl(net, &msg, &fl, opt, &junk, &junk);
 		if (retv)
 			goto done;
 update:
@@ -438,7 +449,7 @@ done:
 
 	case IPV6_MULTICAST_HOPS:
 		if (sk->sk_type == SOCK_STREAM)
-			goto e_inval;
+			break;
 		if (optlen < sizeof(int))
 			goto e_inval;
 		if (val > 255 || val < -1)
@@ -450,13 +461,15 @@ done:
 	case IPV6_MULTICAST_LOOP:
 		if (optlen < sizeof(int))
 			goto e_inval;
+		if (val != valbool)
+			goto e_inval;
 		np->mc_loop = valbool;
 		retv = 0;
 		break;
 
 	case IPV6_MULTICAST_IF:
 		if (sk->sk_type == SOCK_STREAM)
-			goto e_inval;
+			break;
 		if (optlen < sizeof(int))
 			goto e_inval;
 
@@ -832,7 +845,7 @@ static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,
 	len = min_t(unsigned int, len, ipv6_optlen(hdr));
 	if (copy_to_user(optval, hdr, len))
 		return -EFAULT;
-	return ipv6_optlen(hdr);
+	return len;
 }
 
 static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
@@ -852,7 +865,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
 		if (sk->sk_protocol != IPPROTO_UDP &&
 		    sk->sk_protocol != IPPROTO_UDPLITE &&
 		    sk->sk_protocol != IPPROTO_TCP)
-			return -EINVAL;
+			return -ENOPROTOOPT;
 		if (sk->sk_state != TCP_ESTABLISHED)
 			return -ENOTCONN;
 		val = sk->sk_family;
@@ -866,6 +879,8 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
 			return -EINVAL;
 		if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0)))
 			return -EFAULT;
+		if (gsf.gf_group.ss_family != AF_INET6)
+			return -EADDRNOTAVAIL;
 		lock_sock(sk);
 		err = ip6_mc_msfget(sk, &gsf,
 			(struct group_filter __user *)optval, optlen);
@@ -975,6 +990,9 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
 		len = ipv6_getsockopt_sticky(sk, np->opt,
 					     optname, optval, len);
 		release_sock(sk);
+		/* check if ipv6_getsockopt_sticky() returns err code */
+		if (len < 0)
+			return len;
 		return put_user(len, optlen);
 	}
 
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 54f91efdae58..fd632dd7f98d 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1411,7 +1411,7 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
 		     IPV6_TLV_PADN, 0 };
 
 	/* we assume size > sizeof(ra) here */
-	skb = sock_alloc_send_skb(sk, size + LL_RESERVED_SPACE(dev), 1, &err);
+	skb = sock_alloc_send_skb(sk, size + LL_ALLOCATED_SPACE(dev), 1, &err);
 
 	if (!skb)
 		return NULL;
@@ -1790,7 +1790,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
 	payload_len = len + sizeof(ra);
 	full_len = sizeof(struct ipv6hdr) + payload_len;
 
-	skb = sock_alloc_send_skb(sk, LL_RESERVED_SPACE(dev) + full_len, 1, &err);
+	skb = sock_alloc_send_skb(sk, LL_ALLOCATED_SPACE(dev) + full_len, 1, &err);
 
 	if (skb == NULL) {
 		rcu_read_lock();
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 2c74885f8355..282fdb31f8ed 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -479,7 +479,7 @@ static void __ndisc_send(struct net_device *dev,
 
 	skb = sock_alloc_send_skb(sk,
 				  (MAX_HEADER + sizeof(struct ipv6hdr) +
-				   len + LL_RESERVED_SPACE(dev)),
+				   len + LL_ALLOCATED_SPACE(dev)),
 				  1, &err);
 	if (!skb) {
 		ND_PRINTK0(KERN_ERR
@@ -1521,7 +1521,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
 
 	buff = sock_alloc_send_skb(sk,
 				   (MAX_HEADER + sizeof(struct ipv6hdr) +
-				    len + LL_RESERVED_SPACE(dev)),
+				    len + LL_ALLOCATED_SPACE(dev)),
 				   1, &err);
 	if (buff == NULL) {
 		ND_PRINTK0(KERN_ERR
@@ -1727,10 +1727,10 @@ int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, int write, struct file * f
 	return ret;
 }
 
-static int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl, int __user *name,
-					int nlen, void __user *oldval,
-					size_t __user *oldlenp,
-					void __user *newval, size_t newlen)
+int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl, int __user *name,
+				 int nlen, void __user *oldval,
+				 size_t __user *oldlenp,
+				 void __user *newval, size_t newlen)
 {
 	struct net_device *dev = ctl->extra1;
 	struct inet6_dev *idev;
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 2dccad48058c..e65e26e210ee 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -209,7 +209,9 @@ fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst)
 	arg.dst = dst;
 	hash = ip6qhashfn(id, src, dst);
 
+	local_bh_disable();
 	q = inet_frag_find(&nf_init_frags, &nf_frags, &arg, hash);
+	local_bh_enable();
 	if (q == NULL)
 		goto oom;
 
@@ -638,10 +640,10 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
 		goto ret_orig;
 	}
 
-	spin_lock(&fq->q.lock);
+	spin_lock_bh(&fq->q.lock);
 
 	if (nf_ct_frag6_queue(fq, clone, fhdr, nhoff) < 0) {
-		spin_unlock(&fq->q.lock);
+		spin_unlock_bh(&fq->q.lock);
 		pr_debug("Can't insert skb to queue\n");
 		fq_put(fq);
 		goto ret_orig;
@@ -653,7 +655,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
 		if (ret_skb == NULL)
 			pr_debug("Can't reassemble fragmented packets\n");
 	}
-	spin_unlock(&fq->q.lock);
+	spin_unlock_bh(&fq->q.lock);
 
 	fq_put(fq);
 	return ret_skb;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 396f0ea11090..3aee12310d94 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -609,7 +609,6 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct ipv6hdr *iph;
 	struct sk_buff *skb;
-	unsigned int hh_len;
 	int err;
 
 	if (length > rt->u.dst.dev->mtu) {
@@ -619,13 +618,12 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
 	if (flags&MSG_PROBE)
 		goto out;
 
-	hh_len = LL_RESERVED_SPACE(rt->u.dst.dev);
-
-	skb = sock_alloc_send_skb(sk, length+hh_len+15,
-				  flags&MSG_DONTWAIT, &err);
+	skb = sock_alloc_send_skb(sk,
+				  length + LL_ALLOCATED_SPACE(rt->u.dst.dev) + 15,
+				  flags & MSG_DONTWAIT, &err);
 	if (skb == NULL)
 		goto error;
-	skb_reserve(skb, hh_len);
+	skb_reserve(skb, LL_RESERVED_SPACE(rt->u.dst.dev));
 
 	skb->priority = sk->sk_priority;
 	skb->mark = sk->sk_mark;
@@ -815,7 +813,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
 		memset(opt, 0, sizeof(struct ipv6_txoptions));
 		opt->tot_len = sizeof(struct ipv6_txoptions);
 
-		err = datagram_send_ctl(msg, &fl, opt, &hlimit, &tclass);
+		err = datagram_send_ctl(sock_net(sk), msg, &fl, opt, &hlimit, &tclass);
 		if (err < 0) {
 			fl6_sock_release(flowlabel);
 			return err;
@@ -1166,6 +1164,15 @@ static void rawv6_close(struct sock *sk, long timeout)
 	sk_common_release(sk);
 }
 
+static int raw6_destroy(struct sock *sk)
+{
+	lock_sock(sk);
+	ip6_flush_pending_frames(sk);
+	release_sock(sk);
+
+	return inet6_destroy_sock(sk);
+}
+
 static int rawv6_init_sk(struct sock *sk)
 {
 	struct raw6_sock *rp = raw6_sk(sk);
@@ -1189,11 +1196,11 @@ struct proto rawv6_prot = {
 	.name		   = "RAWv6",
 	.owner		   = THIS_MODULE,
 	.close		   = rawv6_close,
+	.destroy	   = raw6_destroy,
 	.connect	   = ip6_datagram_connect,
 	.disconnect	   = udp_disconnect,
 	.ioctl		   = rawv6_ioctl,
 	.init		   = rawv6_init_sk,
-	.destroy	   = inet6_destroy_sock,
 	.setsockopt	   = rawv6_setsockopt,
 	.getsockopt	   = rawv6_getsockopt,
 	.sendmsg	   = rawv6_sendmsg,
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 12bba0880345..d1f3e19b06c7 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -109,7 +109,7 @@ static struct dst_ops ip6_dst_ops_template = {
 	.negative_advice	=	ip6_negative_advice,
 	.link_failure		=	ip6_link_failure,
 	.update_pmtu		=	ip6_rt_update_pmtu,
-	.local_out		=	ip6_local_out,
+	.local_out		=	__ip6_local_out,
 	.entry_size		=	sizeof(struct rt6_info),
 	.entries		=	ATOMIC_INIT(0),
 };
@@ -446,7 +446,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
 	struct route_info *rinfo = (struct route_info *) opt;
 	struct in6_addr prefix_buf, *prefix;
 	unsigned int pref;
-	u32 lifetime;
+	unsigned long lifetime;
 	struct rt6_info *rt;
 
 	if (len < sizeof(struct route_info)) {
@@ -472,13 +472,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
 	if (pref == ICMPV6_ROUTER_PREF_INVALID)
 		pref = ICMPV6_ROUTER_PREF_MEDIUM;
 
-	lifetime = ntohl(rinfo->lifetime);
-	if (lifetime == 0xffffffff) {
-		/* infinity */
-	} else if (lifetime > 0x7fffffff/HZ) {
-		/* Avoid arithmetic overflow */
-		lifetime = 0x7fffffff/HZ - 1;
-	}
+	lifetime = addrconf_timeout_fixup(ntohl(rinfo->lifetime), HZ);
 
 	if (rinfo->length == 3)
 		prefix = (struct in6_addr *)rinfo->prefix;
@@ -506,7 +500,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
 				 (rt->rt6i_flags & ~RTF_PREF_MASK) | RTF_PREF(pref);
 
 	if (rt) {
-		if (lifetime == 0xffffffff) {
+		if (!addrconf_finite_timeout(lifetime)) {
 			rt->rt6i_flags &= ~RTF_EXPIRES;
 		} else {
 			rt->rt6i_expires = jiffies + HZ * lifetime;
@@ -1106,7 +1100,9 @@ int ip6_route_add(struct fib6_config *cfg)
 	}
 
 	rt->u.dst.obsolete = -1;
-	rt->rt6i_expires = jiffies + clock_t_to_jiffies(cfg->fc_expires);
+	rt->rt6i_expires = (cfg->fc_flags & RTF_EXPIRES) ?
+				jiffies + clock_t_to_jiffies(cfg->fc_expires) :
+				0;
 
 	if (cfg->fc_protocol == RTPROT_UNSPEC)
 		cfg->fc_protocol = RTPROT_BOOT;
@@ -2200,7 +2196,13 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
 
 	NLA_PUT_U32(skb, RTA_PRIORITY, rt->rt6i_metric);
 
-	expires = rt->rt6i_expires ? rt->rt6i_expires - jiffies : 0;
+	if (!(rt->rt6i_flags & RTF_EXPIRES))
+		expires = 0;
+	else if (rt->rt6i_expires - jiffies < INT_MAX)
+		expires = rt->rt6i_expires - jiffies;
+	else
+		expires = INT_MAX;
+
 	if (rtnl_put_cacheinfo(skb, &rt->u.dst, 0, 0, 0,
 			       expires, rt->u.dst.error) < 0)
 		goto nla_put_failure;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 5a6fab95569f..32e871a6c25a 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -222,15 +222,18 @@ __ipip6_tunnel_locate_prl(struct ip_tunnel *t, __be32 addr)
 
 }
 
-static int ipip6_tunnel_get_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
+static int ipip6_tunnel_get_prl(struct ip_tunnel *t,
+				struct ip_tunnel_prl __user *a)
 {
-	struct ip_tunnel_prl *kp;
+	struct ip_tunnel_prl kprl, *kp;
 	struct ip_tunnel_prl_entry *prl;
 	unsigned int cmax, c = 0, ca, len;
 	int ret = 0;
 
-	cmax = a->datalen / sizeof(*a);
-	if (cmax > 1 && a->addr != htonl(INADDR_ANY))
+	if (copy_from_user(&kprl, a, sizeof(kprl)))
+		return -EFAULT;
+	cmax = kprl.datalen / sizeof(kprl);
+	if (cmax > 1 && kprl.addr != htonl(INADDR_ANY))
 		cmax = 1;
 
 	/* For simple GET or for root users,
@@ -261,26 +264,25 @@ static int ipip6_tunnel_get_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
 	for (prl = t->prl; prl; prl = prl->next) {
 		if (c > cmax)
 			break;
-		if (a->addr != htonl(INADDR_ANY) && prl->addr != a->addr)
+		if (kprl.addr != htonl(INADDR_ANY) && prl->addr != kprl.addr)
 			continue;
 		kp[c].addr = prl->addr;
 		kp[c].flags = prl->flags;
 		c++;
-		if (a->addr != htonl(INADDR_ANY))
+		if (kprl.addr != htonl(INADDR_ANY))
 			break;
 	}
 out:
 	read_unlock(&ipip6_lock);
 
 	len = sizeof(*kp) * c;
-	ret = len ? copy_to_user(a->data, kp, len) : 0;
+	ret = 0;
+	if ((len && copy_to_user(a + 1, kp, len)) || put_user(len, &a->datalen))
+		ret = -EFAULT;
 
 	kfree(kp);
-	if (ret)
-		return -EFAULT;
 
-	a->datalen = len;
-	return 0;
+	return ret;
 }
 
 static int
@@ -403,9 +405,8 @@ static void ipip6_tunnel_uninit(struct net_device *dev)
 
 static int ipip6_err(struct sk_buff *skb, u32 info)
 {
-#ifndef I_WISH_WORLD_WERE_PERFECT
 
-/* It is not :-( All the routers (except for Linux) return only
+/* All the routers (except for Linux) return only
    8 bytes of packet payload. It means, that precise relaying of
    ICMP in the real Internet is absolutely infeasible.
  */
@@ -462,92 +463,6 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
 out:
 	read_unlock(&ipip6_lock);
 	return err;
-#else
-	struct iphdr *iph = (struct iphdr*)dp;
-	int hlen = iph->ihl<<2;
-	struct ipv6hdr *iph6;
-	const int type = icmp_hdr(skb)->type;
-	const int code = icmp_hdr(skb)->code;
-	int rel_type = 0;
-	int rel_code = 0;
-	int rel_info = 0;
-	struct sk_buff *skb2;
-	struct rt6_info *rt6i;
-
-	if (len < hlen + sizeof(struct ipv6hdr))
-		return;
-	iph6 = (struct ipv6hdr*)(dp + hlen);
-
-	switch (type) {
-	default:
-		return;
-	case ICMP_PARAMETERPROB:
-		if (icmp_hdr(skb)->un.gateway < hlen)
-			return;
-
-		/* So... This guy found something strange INSIDE encapsulated
-		   packet. Well, he is fool, but what can we do ?
-		 */
-		rel_type = ICMPV6_PARAMPROB;
-		rel_info = icmp_hdr(skb)->un.gateway - hlen;
-		break;
-
-	case ICMP_DEST_UNREACH:
-		switch (code) {
-		case ICMP_SR_FAILED:
-		case ICMP_PORT_UNREACH:
-			/* Impossible event. */
-			return;
-		case ICMP_FRAG_NEEDED:
-			/* Too complicated case ... */
-			return;
-		default:
-			/* All others are translated to HOST_UNREACH.
-			   rfc2003 contains "deep thoughts" about NET_UNREACH,
-			   I believe, it is just ether pollution. --ANK
-			 */
-			rel_type = ICMPV6_DEST_UNREACH;
-			rel_code = ICMPV6_ADDR_UNREACH;
-			break;
-		}
-		break;
-	case ICMP_TIME_EXCEEDED:
-		if (code != ICMP_EXC_TTL)
-			return;
-		rel_type = ICMPV6_TIME_EXCEED;
-		rel_code = ICMPV6_EXC_HOPLIMIT;
-		break;
-	}
-
-	/* Prepare fake skb to feed it to icmpv6_send */
-	skb2 = skb_clone(skb, GFP_ATOMIC);
-	if (skb2 == NULL)
-		return 0;
-	dst_release(skb2->dst);
-	skb2->dst = NULL;
-	skb_pull(skb2, skb->data - (u8*)iph6);
-	skb_reset_network_header(skb2);
-
-	/* Try to guess incoming interface */
-	rt6i = rt6_lookup(dev_net(skb->dev), &iph6->saddr, NULL, NULL, 0);
-	if (rt6i && rt6i->rt6i_dev) {
-		skb2->dev = rt6i->rt6i_dev;
-
-		rt6i = rt6_lookup(dev_net(skb->dev),
-				&iph6->daddr, &iph6->saddr, NULL, 0);
-
-		if (rt6i && rt6i->rt6i_dev && rt6i->rt6i_dev->type == ARPHRD_SIT) {
-			struct ip_tunnel *t = netdev_priv(rt6i->rt6i_dev);
-			if (rel_type == ICMPV6_TIME_EXCEED && t->parms.iph.ttl) {
-				rel_type = ICMPV6_DEST_UNREACH;
-				rel_code = ICMPV6_ADDR_UNREACH;
-			}
-			icmpv6_send(skb2, rel_type, rel_code, rel_info, skb2->dev);
-		}
-	}
-	kfree_skb(skb2);
-	return 0;
-#endif
 }
 
 static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb)
@@ -960,11 +875,20 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 		break;
 
 	case SIOCGETPRL:
+		err = -EINVAL;
+		if (dev == sitn->fb_tunnel_dev)
+			goto done;
+		err = -ENOENT;
+		if (!(t = netdev_priv(dev)))
+			goto done;
+		err = ipip6_tunnel_get_prl(t, ifr->ifr_ifru.ifru_data);
+		break;
+
 	case SIOCADDPRL:
 	case SIOCDELPRL:
 	case SIOCCHGPRL:
 		err = -EPERM;
-		if (cmd != SIOCGETPRL && !capable(CAP_NET_ADMIN))
+		if (!capable(CAP_NET_ADMIN))
 			goto done;
 		err = -EINVAL;
 		if (dev == sitn->fb_tunnel_dev)
@@ -977,12 +901,6 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 			goto done;
 
 		switch (cmd) {
-		case SIOCGETPRL:
-			err = ipip6_tunnel_get_prl(t, &prl);
-			if (!err && copy_to_user(ifr->ifr_ifru.ifru_data,
-						 &prl, sizeof(prl)))
-				err = -EFAULT;
-			break;
 		case SIOCDELPRL:
 			err = ipip6_tunnel_del_prl(t, &prl);
 			break;
@@ -991,8 +909,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 			err = ipip6_tunnel_add_prl(t, &prl, cmd == SIOCCHGPRL);
 			break;
 		}
-		if (cmd != SIOCGETPRL)
-			netdev_state_change(dev);
+		netdev_state_change(dev);
 		break;
 
 	default:
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 938ce4ecde55..3ecc1157994e 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -198,7 +198,6 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 	ireq = inet_rsk(req);
 	ireq6 = inet6_rsk(req);
 	treq = tcp_rsk(req);
-	ireq6->pktopts = NULL;
 
 	if (security_inet_conn_request(sk, skb, req)) {
 		reqsk_free(req);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 715965f0fac0..cb46749d4c32 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1299,7 +1299,6 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	treq = inet6_rsk(req);
 	ipv6_addr_copy(&treq->rmt_addr, &ipv6_hdr(skb)->saddr);
 	ipv6_addr_copy(&treq->loc_addr, &ipv6_hdr(skb)->daddr);
-	treq->pktopts = NULL;
 	if (!want_cookie)
 		TCP_ECN_create_request(req, tcp_hdr(skb));
 
diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c
index 6323921b40be..669f280989c3 100644
--- a/net/ipv6/tunnel6.c
+++ b/net/ipv6/tunnel6.c
@@ -109,7 +109,7 @@ static int tunnel46_rcv(struct sk_buff *skb)
 {
 	struct xfrm6_tunnel *handler;
 
-	if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
+	if (!pskb_may_pull(skb, sizeof(struct iphdr)))
 		goto drop;
 
 	for (handler = tunnel46_handlers; handler; handler = handler->next)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 1fd784f3e2ec..dd309626ae9a 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -534,7 +534,9 @@ static void udp_v6_flush_pending_frames(struct sock *sk)
 {
 	struct udp_sock *up = udp_sk(sk);
 
-	if (up->pending) {
+	if (up->pending == AF_INET)
+		udp_flush_pending_frames(sk);
+	else if (up->pending) {
 		up->len = 0;
 		up->pending = 0;
 		ip6_flush_pending_frames(sk);
@@ -731,7 +733,7 @@ do_udp_sendmsg:
 		memset(opt, 0, sizeof(struct ipv6_txoptions));
 		opt->tot_len = sizeof(*opt);
 
-		err = datagram_send_ctl(msg, &fl, opt, &hlimit, &tclass);
+		err = datagram_send_ctl(sock_net(sk), msg, &fl, opt, &hlimit, &tclass);
 		if (err < 0) {
 			fl6_sock_release(flowlabel);
 			return err;
@@ -848,12 +850,14 @@ do_append_data:
 		} else {
 			dst_release(dst);
 		}
+		dst = NULL;
 	}
 
 	if (err > 0)
 		err = np->recverr ? net_xmit_errno(err) : 0;
 	release_sock(sk);
 out:
+	dst_release(dst);
 	fl6_sock_release(flowlabel);
 	if (!err)
 		return len;