Merge branch 'net-2.6.26-misc-20080412b' of git://git.linux-ipv6.org/gitroot/yoshfuji/linux-2.6-dev

5 files changed, 44 insertions, 92 deletions

diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index bdcc863a60a..0a2f0372df3 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -76,12 +76,12 @@ extern int			ipv6_chk_prefix(struct in6_addr *addr,
 						struct net_device *dev);
 
 extern struct inet6_ifaddr      *ipv6_get_ifaddr(struct net *net,
-						 struct in6_addr *addr,
+						 const struct in6_addr *addr,
 						 struct net_device *dev,
 						 int strict);
 
 extern int			ipv6_dev_get_saddr(struct net_device *dev, 
-					       struct in6_addr *daddr,
+					       const struct in6_addr *daddr,
 					       unsigned int srcprefs,
 					       struct in6_addr *saddr);
 extern int			ipv6_get_lladdr(struct net_device *dev,
@@ -105,25 +105,27 @@ extern u32			ipv6_addr_label(const struct in6_addr *addr,
 /*
  *	multicast prototypes (mcast.c)
  */
-extern int ipv6_sock_mc_join(struct sock *sk, int ifindex, 
-		  struct in6_addr *addr);
-extern int ipv6_sock_mc_drop(struct sock *sk, int ifindex, 
-		  struct in6_addr *addr);
+extern int ipv6_sock_mc_join(struct sock *sk, int ifindex,
+			     const struct in6_addr *addr);
+extern int ipv6_sock_mc_drop(struct sock *sk, int ifindex,
+			     const struct in6_addr *addr);
 extern void ipv6_sock_mc_close(struct sock *sk);
-extern int inet6_mc_check(struct sock *sk, struct in6_addr *mc_addr,
-		struct in6_addr *src_addr);
+extern int inet6_mc_check(struct sock *sk,
+			  const struct in6_addr *mc_addr,
+			  const struct in6_addr *src_addr);
 
-extern int ipv6_dev_mc_inc(struct net_device *dev, struct in6_addr *addr);
-extern int __ipv6_dev_mc_dec(struct inet6_dev *idev, struct in6_addr *addr);
-extern int ipv6_dev_mc_dec(struct net_device *dev, struct in6_addr *addr);
+extern int ipv6_dev_mc_inc(struct net_device *dev, const struct in6_addr *addr);
+extern int __ipv6_dev_mc_dec(struct inet6_dev *idev, const struct in6_addr *addr);
+extern int ipv6_dev_mc_dec(struct net_device *dev, const struct in6_addr *addr);
 extern void ipv6_mc_up(struct inet6_dev *idev);
 extern void ipv6_mc_down(struct inet6_dev *idev);
 extern void ipv6_mc_init_dev(struct inet6_dev *idev);
 extern void ipv6_mc_destroy_dev(struct inet6_dev *idev);
 extern void addrconf_dad_failure(struct inet6_ifaddr *ifp);
 
-extern int ipv6_chk_mcast_addr(struct net_device *dev, struct in6_addr *group,
-		struct in6_addr *src_addr);
+extern int ipv6_chk_mcast_addr(struct net_device *dev,
+			       const struct in6_addr *group,
+			       const struct in6_addr *src_addr);
 extern int ipv6_is_mld(struct sk_buff *skb, int nexthdr);
 
 extern void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len);
@@ -189,25 +191,6 @@ static inline void in6_ifa_put(struct inet6_ifaddr *ifp)
 #define in6_ifa_hold(ifp)	atomic_inc(&(ifp)->refcnt)
 
 
-/*
- *	Hash function taken from net_alias.c
- */
-
-static __inline__ u8 ipv6_addr_hash(const struct in6_addr *addr)
-{	
-	__u32 word;
-
-	/* 
-	 * We perform the hash function over the last 64 bits of the address
-	 * This will include the IEEE address token on links that support it.
-	 */
-
-	word = (__force u32)(addr->s6_addr32[2] ^ addr->s6_addr32[3]);
-	word ^= (word >> 16);
-	word ^= (word >> 8);
-
-	return ((word ^ (word >> 4)) & 0x0f);
-}
 
 /*
  *	compute link-local solicited-node multicast address
@@ -222,17 +205,6 @@ static inline void addrconf_addr_solict_mult(const struct in6_addr *addr,
 		      htonl(0xFF000000) | addr->s6_addr32[3]);
 }
 
-
-static inline void ipv6_addr_all_nodes(struct in6_addr *addr)
-{
-	ipv6_addr_set(addr, htonl(0xFF020000), 0, 0, htonl(0x1));
-}
-
-static inline void ipv6_addr_all_routers(struct in6_addr *addr)
-{
-	ipv6_addr_set(addr, htonl(0xFF020000), 0, 0, htonl(0x2));
-}
-
 static inline int ipv6_addr_is_multicast(const struct in6_addr *addr)
 {
 	return (addr->s6_addr32[0] & htonl(0xFF000000)) == htonl(0xFF000000);
@@ -240,34 +212,19 @@ static inline int ipv6_addr_is_multicast(const struct in6_addr *addr)
 
 static inline int ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr)
 {
-	return (addr->s6_addr32[0] == htonl(0xff020000) &&
-		addr->s6_addr32[1] == 0 &&
-		addr->s6_addr32[2] == 0 &&
-		addr->s6_addr32[3] == htonl(0x00000001));
+	return (((addr->s6_addr32[0] ^ htonl(0xff020000)) |
+		addr->s6_addr32[1] | addr->s6_addr32[2] |
+		(addr->s6_addr32[3] ^ htonl(0x00000001))) == 0);
 }
 
 static inline int ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
 {
-	return (addr->s6_addr32[0] == htonl(0xff020000) &&
-		addr->s6_addr32[1] == 0 &&
-		addr->s6_addr32[2] == 0 &&
-		addr->s6_addr32[3] == htonl(0x00000002));
+	return (((addr->s6_addr32[0] ^ htonl(0xff020000)) |
+		addr->s6_addr32[1] | addr->s6_addr32[2] |
+		(addr->s6_addr32[3] ^ htonl(0x00000002))) == 0);
 }
 
-static inline int ipv6_isatap_eui64(u8 *eui, __be32 addr)
-{
-	eui[0] = (ipv4_is_zeronet(addr) || ipv4_is_private_10(addr) ||
-		  ipv4_is_loopback(addr) || ipv4_is_linklocal_169(addr) ||
-		  ipv4_is_private_172(addr) || ipv4_is_test_192(addr) ||
-		  ipv4_is_anycast_6to4(addr) || ipv4_is_private_192(addr) ||
-		  ipv4_is_test_198(addr) || ipv4_is_multicast(addr) ||
-		  ipv4_is_lbcast(addr)) ? 0x00 : 0x02;
-	eui[1] = 0;
-	eui[2] = 0x5E;
-	eui[3] = 0xFE;
-	memcpy (eui+4, &addr, 4);
-	return 0;
-}
+extern int __ipv6_isatap_ifid(u8 *eui, __be32 addr);
 
 static inline int ipv6_addr_is_isatap(const struct in6_addr *addr)
 {
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 9080076ce0e..9313491e3da 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -61,13 +61,13 @@ extern int			ip6_ins_rt(struct rt6_info *);
 extern int			ip6_del_rt(struct rt6_info *);
 
 extern struct rt6_info		*rt6_lookup(struct net *net,
-					    struct in6_addr *daddr,
-					    struct in6_addr *saddr,
+					    const struct in6_addr *daddr,
+					    const struct in6_addr *saddr,
 					    int oif, int flags);
 
 extern struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
 					 struct neighbour *neigh,
-					 struct in6_addr *addr);
+					 const struct in6_addr *addr);
 extern int icmp6_dst_gc(int *more);
 
 extern void fib6_force_start_gc(struct net *net);
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 5738c1c73ac..49c48983019 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -280,12 +280,10 @@ static inline int
 ipv6_masked_addr_cmp(const struct in6_addr *a1, const struct in6_addr *m,
 		     const struct in6_addr *a2)
 {
-	unsigned int i;
-
-	for (i = 0; i < 4; i++)
-		if ((a1->s6_addr32[i] ^ a2->s6_addr32[i]) & m->s6_addr32[i])
-			return 1;
-	return 0;
+	return (!!(((a1->s6_addr32[0] ^ a2->s6_addr32[0]) & m->s6_addr32[0]) |
+		   ((a1->s6_addr32[1] ^ a2->s6_addr32[1]) & m->s6_addr32[1]) |
+		   ((a1->s6_addr32[2] ^ a2->s6_addr32[2]) & m->s6_addr32[2]) |
+		   ((a1->s6_addr32[3] ^ a2->s6_addr32[3]) & m->s6_addr32[3])));
 }
 
 static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2)
@@ -320,10 +318,10 @@ static inline void ipv6_addr_set(struct in6_addr *addr,
 static inline int ipv6_addr_equal(const struct in6_addr *a1,
 				  const struct in6_addr *a2)
 {
-	return (a1->s6_addr32[0] == a2->s6_addr32[0] &&
-		a1->s6_addr32[1] == a2->s6_addr32[1] &&
-		a1->s6_addr32[2] == a2->s6_addr32[2] &&
-		a1->s6_addr32[3] == a2->s6_addr32[3]);
+	return (((a1->s6_addr32[0] ^ a2->s6_addr32[0]) |
+		 (a1->s6_addr32[1] ^ a2->s6_addr32[1]) |
+		 (a1->s6_addr32[2] ^ a2->s6_addr32[2]) |
+		 (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0);
 }
 
 static inline int __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2,
@@ -371,8 +369,8 @@ static inline int ipv6_addr_any(const struct in6_addr *a)
 
 static inline int ipv6_addr_v4mapped(const struct in6_addr *a)
 {
-	return ((a->s6_addr32[0] | a->s6_addr32[1]) == 0 &&
-		 a->s6_addr32[2] == htonl(0x0000ffff));
+	return ((a->s6_addr32[0] | a->s6_addr32[1] |
+		 (a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0);
 }
 
 /*
@@ -453,8 +451,8 @@ extern int			ip6_xmit(struct sock *sk,
 extern int			ip6_nd_hdr(struct sock *sk,
 					   struct sk_buff *skb,
 					   struct net_device *dev,
-					   struct in6_addr *saddr,
-					   struct in6_addr *daddr,
+					   const struct in6_addr *saddr,
+					   const struct in6_addr *daddr,
 					   int proto, int len);
 
 extern int			ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
diff --git a/include/net/mip6.h b/include/net/mip6.h
index 63272610a24..a83ad1982a9 100644
--- a/include/net/mip6.h
+++ b/include/net/mip6.h
@@ -28,9 +28,6 @@
 #include <linux/skbuff.h>
 #include <net/sock.h>
 
-#define MIP6_OPT_PAD_1	0
-#define MIP6_OPT_PAD_N	1
-
 /*
  * Mobility Header
  */
diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 16424236fe2..9c451ff2f4f 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -94,17 +94,17 @@ extern int			ndisc_rcv(struct sk_buff *skb);
 
 extern void			ndisc_send_ns(struct net_device *dev,
 					      struct neighbour *neigh,
-					      struct in6_addr *solicit,
-					      struct in6_addr *daddr,
-					      struct in6_addr *saddr);
+					      const struct in6_addr *solicit,
+					      const struct in6_addr *daddr,
+					      const struct in6_addr *saddr);
 
 extern void			ndisc_send_rs(struct net_device *dev,
-					      struct in6_addr *saddr,
-					      struct in6_addr *daddr);
+					      const struct in6_addr *saddr,
+					      const struct in6_addr *daddr);
 
 extern void			ndisc_send_redirect(struct sk_buff *skb,
 						    struct neighbour *neigh,
-						    struct in6_addr *target);
+						    const struct in6_addr *target);
 
 extern int			ndisc_mc_map(struct in6_addr *addr, char *buf, struct net_device *dev, int dir);
 
@@ -134,7 +134,7 @@ extern int 			ndisc_ifinfo_sysctl_change(struct ctl_table *ctl,
 extern void 			inet6_ifinfo_notify(int event,
 						    struct inet6_dev *idev);
 
-static inline struct neighbour * ndisc_get_neigh(struct net_device *dev, struct in6_addr *addr)
+static inline struct neighbour * ndisc_get_neigh(struct net_device *dev, const struct in6_addr *addr)
 {
 
 	if (dev)