hwmon: ina219: add precision multiplier
[linux-2.6.git] / include / net / ip6_route.h
index 3f170f6..2ad92ca 100644 (file)
@@ -1,11 +1,8 @@
 #ifndef _NET_IP6_ROUTE_H
 #define _NET_IP6_ROUTE_H
 
-#define IP6_RT_PRIO_FW         16
 #define IP6_RT_PRIO_USER       1024
 #define IP6_RT_PRIO_ADDRCONF   256
-#define IP6_RT_PRIO_KERN       512
-#define IP6_RT_FLOW_MASK       0x00ff
 
 struct route_info {
        __u8                    type;
@@ -20,153 +17,179 @@ struct route_info {
                                route_pref:2,
                                reserved_h:3;
 #endif
-       __u32                   lifetime;
+       __be32                  lifetime;
        __u8                    prefix[0];      /* 0,8 or 16 */
 };
 
-#ifdef __KERNEL__
-
 #include <net/flow.h>
 #include <net/ip6_fib.h>
 #include <net/sock.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 
-struct pol_chain {
-       int                     type;
-       int                     priority;
-       struct fib6_node        *rules;
-       struct pol_chain        *next;
-};
+#define RT6_LOOKUP_F_IFACE             0x00000001
+#define RT6_LOOKUP_F_REACHABLE         0x00000002
+#define RT6_LOOKUP_F_HAS_SADDR         0x00000004
+#define RT6_LOOKUP_F_SRCPREF_TMP       0x00000008
+#define RT6_LOOKUP_F_SRCPREF_PUBLIC    0x00000010
+#define RT6_LOOKUP_F_SRCPREF_COA       0x00000020
 
-extern struct rt6_info ip6_null_entry;
+/*
+ * rt6_srcprefs2flags() and rt6_flags2srcprefs() translate
+ * between IPV6_ADDR_PREFERENCES socket option values
+ *     IPV6_PREFER_SRC_TMP    = 0x1
+ *     IPV6_PREFER_SRC_PUBLIC = 0x2
+ *     IPV6_PREFER_SRC_COA    = 0x4
+ * and above RT6_LOOKUP_F_SRCPREF_xxx flags.
+ */
+static inline int rt6_srcprefs2flags(unsigned int srcprefs)
+{
+       /* No need to bitmask because srcprefs have only 3 bits. */
+       return srcprefs << 3;
+}
 
-#ifdef CONFIG_IPV6_MULTIPLE_TABLES
-extern struct rt6_info ip6_prohibit_entry;
-extern struct rt6_info ip6_blk_hole_entry;
-#endif
+static inline unsigned int rt6_flags2srcprefs(int flags)
+{
+       return (flags >> 3) & 7;
+}
 
-extern int ip6_rt_gc_interval;
+extern void                    rt6_bind_peer(struct rt6_info *rt,
+                                             int create);
 
-extern void                    ip6_route_input(struct sk_buff *skb);
+static inline struct inet_peer *rt6_get_peer(struct rt6_info *rt)
+{
+       if (rt->rt6i_peer)
+               return rt->rt6i_peer;
+
+       rt6_bind_peer(rt, 0);
+       return rt->rt6i_peer;
+}
 
-extern struct dst_entry *      ip6_route_output(struct sock *sk,
-                                                struct flowi *fl);
+extern void                    ip6_route_input(struct sk_buff *skb);
 
-extern int                     ip6_route_me_harder(struct sk_buff *skb);
+extern struct dst_entry *      ip6_route_output(struct net *net,
+                                                const struct sock *sk,
+                                                struct flowi6 *fl6);
+extern struct dst_entry *      ip6_route_lookup(struct net *net,
+                                                struct flowi6 *fl6, int flags);
 
-extern void                    ip6_route_init(void);
+extern int                     ip6_route_init(void);
 extern void                    ip6_route_cleanup(void);
 
-extern int                     ipv6_route_ioctl(unsigned int cmd, void __user *arg);
+extern int                     ipv6_route_ioctl(struct net *net,
+                                                unsigned int cmd,
+                                                void __user *arg);
 
 extern int                     ip6_route_add(struct fib6_config *cfg);
 extern int                     ip6_ins_rt(struct rt6_info *);
 extern int                     ip6_del_rt(struct rt6_info *);
 
-extern int                     ip6_rt_addr_add(struct in6_addr *addr,
-                                               struct net_device *dev,
-                                               int anycast);
-
-extern int                     ip6_rt_addr_del(struct in6_addr *addr,
-                                               struct net_device *dev);
+extern int                     ip6_route_get_saddr(struct net *net,
+                                                   struct rt6_info *rt,
+                                                   const struct in6_addr *daddr,
+                                                   unsigned int prefs,
+                                                   struct in6_addr *saddr);
 
-extern void                    rt6_sndmsg(int type, struct in6_addr *dst,
-                                          struct in6_addr *src,
-                                          struct in6_addr *gw,
-                                          struct net_device *dev, 
-                                          int dstlen, int srclen,
-                                          int metric, __u32 flags);
-
-extern struct rt6_info         *rt6_lookup(struct in6_addr *daddr,
-                                           struct in6_addr *saddr,
+extern struct rt6_info         *rt6_lookup(struct net *net,
+                                           const struct in6_addr *daddr,
+                                           const struct in6_addr *saddr,
                                            int oif, int flags);
 
-extern struct dst_entry *ndisc_dst_alloc(struct net_device *dev,
+extern struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
                                         struct neighbour *neigh,
-                                        struct in6_addr *addr,
-                                        int (*output)(struct sk_buff *));
-extern int ndisc_dst_gc(int *more);
-extern void fib6_force_start_gc(void);
+                                        struct flowi6 *fl6);
+extern int icmp6_dst_gc(void);
+
+extern void fib6_force_start_gc(struct net *net);
 
 extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
                                           const struct in6_addr *addr,
-                                          int anycast);
+                                          bool anycast);
+
+extern int                     ip6_dst_hoplimit(struct dst_entry *dst);
 
 /*
  *     support functions for ND
  *
  */
-extern struct rt6_info *       rt6_get_dflt_router(struct in6_addr *addr,
+extern struct rt6_info *       rt6_get_dflt_router(const struct in6_addr *addr,
                                                    struct net_device *dev);
-extern struct rt6_info *       rt6_add_dflt_router(struct in6_addr *gwaddr,
+extern struct rt6_info *       rt6_add_dflt_router(const struct in6_addr *gwaddr,
                                                    struct net_device *dev,
                                                    unsigned int pref);
 
-extern void                    rt6_purge_dflt_routers(void);
+extern void                    rt6_purge_dflt_routers(struct net *net);
 
 extern int                     rt6_route_rcv(struct net_device *dev,
                                              u8 *opt, int len,
-                                             struct in6_addr *gwaddr);
+                                             const struct in6_addr *gwaddr);
 
-extern void                    rt6_redirect(struct in6_addr *dest,
-                                            struct in6_addr *saddr,
+extern void                    rt6_redirect(const struct in6_addr *dest,
+                                            const struct in6_addr *src,
+                                            const struct in6_addr *saddr,
                                             struct neighbour *neigh,
                                             u8 *lladdr,
                                             int on_link);
 
-extern void                    rt6_pmtu_discovery(struct in6_addr *daddr,
-                                                  struct in6_addr *saddr,
+extern void                    rt6_pmtu_discovery(const struct in6_addr *daddr,
+                                                  const struct in6_addr *saddr,
                                                   struct net_device *dev,
                                                   u32 pmtu);
 
-struct nlmsghdr;
 struct netlink_callback;
-extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb);
-extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
-extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
-extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
 
-struct rt6_rtnl_dump_arg
-{
+struct rt6_rtnl_dump_arg {
        struct sk_buff *skb;
        struct netlink_callback *cb;
+       struct net *net;
 };
 
 extern int rt6_dump_route(struct rt6_info *rt, void *p_arg);
-extern void rt6_ifdown(struct net_device *dev);
+extern void rt6_ifdown(struct net *net, struct net_device *dev);
 extern void rt6_mtu_change(struct net_device *dev, unsigned mtu);
+extern void rt6_remove_prefsrc(struct inet6_ifaddr *ifp);
 
-extern rwlock_t rt6_lock;
 
 /*
  *     Store a destination cache entry in a socket
  */
 static inline void __ip6_dst_store(struct sock *sk, struct dst_entry *dst,
-                                  struct in6_addr *daddr)
+                                  struct in6_addr *daddr, struct in6_addr *saddr)
 {
        struct ipv6_pinfo *np = inet6_sk(sk);
        struct rt6_info *rt = (struct rt6_info *) dst;
 
        sk_setup_caps(sk, dst);
        np->daddr_cache = daddr;
+#ifdef CONFIG_IPV6_SUBTREES
+       np->saddr_cache = saddr;
+#endif
        np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
 }
 
 static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst,
-                                struct in6_addr *daddr)
+                                struct in6_addr *daddr, struct in6_addr *saddr)
 {
-       write_lock(&sk->sk_dst_lock);
-       __ip6_dst_store(sk, dst, daddr);
-       write_unlock(&sk->sk_dst_lock);
+       spin_lock(&sk->sk_dst_lock);
+       __ip6_dst_store(sk, dst, daddr, saddr);
+       spin_unlock(&sk->sk_dst_lock);
 }
 
 static inline int ipv6_unicast_destination(struct sk_buff *skb)
 {
-       struct rt6_info *rt = (struct rt6_info *) skb->dst;
+       struct rt6_info *rt = (struct rt6_info *) skb_dst(skb);
 
        return rt->rt6i_flags & RTF_LOCAL;
 }
 
-#endif
+int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
+
+static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
+{
+       struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
+
+       return (np && np->pmtudisc == IPV6_PMTUDISC_PROBE) ?
+              skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
+}
+
 #endif