[IPV6] ROUTE: Unify RT6_F_xxx and RT6_SELECT_F_xxx flags

Unify RT6_F_xxx and RT6_SELECT_F_xxx flags into
RT6_LOOKUP_F_xxx flags, and put them into ip6_route.h

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Ville Nuorvala <vnuorval@tcs.hut.fi
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 12 insertions, 20 deletions

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index fd6f2ec4fa09..20691285aee5 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -76,9 +76,6 @@
 
 #define CLONE_OFFLINK_ROUTE 0
 
-#define RT6_SELECT_F_IFACE      0x1
-#define RT6_SELECT_F_REACHABLE  0x2
-
 static int ip6_rt_max_size = 4096;
 static int ip6_rt_gc_min_interval = HZ / 2;
 static int ip6_rt_gc_timeout = 60*HZ;
@@ -340,7 +337,7 @@ static int rt6_score_route(struct rt6_info *rt, int oif,
         int m, n;
                 
         m = rt6_check_dev(rt, oif);
-        if (!m && (strict & RT6_SELECT_F_IFACE))
+        if (!m && (strict & RT6_LOOKUP_F_IFACE))
                 return -1;
 #ifdef CONFIG_IPV6_ROUTER_PREF
         m |= IPV6_DECODE_PREF(IPV6_EXTRACT_PREF(rt->rt6i_flags)) << 2;
@@ -348,7 +345,7 @@ static int rt6_score_route(struct rt6_info *rt, int oif,
         n = rt6_check_neigh(rt);
         if (n > 1)
                 m |= 16;
-        else if (!n && strict & RT6_SELECT_F_REACHABLE)
+        else if (!n && strict & RT6_LOOKUP_F_REACHABLE)
                 return -1;
         return m;
 }
@@ -388,7 +385,7 @@ static struct rt6_info *rt6_select(struct rt6_info **head, int oif,
         }
 
         if (!match &&
-            (strict & RT6_SELECT_F_REACHABLE) &&
+            (strict & RT6_LOOKUP_F_REACHABLE) &&
             last && last != rt0) {
                 /* no entries matched; do round-robin */
                 static DEFINE_SPINLOCK(lock);
@@ -511,7 +508,7 @@ static struct rt6_info *ip6_pol_route_lookup(struct fib6_table *table,
         fn = fib6_lookup(&table->tb6_root, &fl->fl6_dst, &fl->fl6_src);
 restart:
         rt = fn->leaf;
-        rt = rt6_device_match(rt, fl->oif, flags & RT6_F_STRICT);
+        rt = rt6_device_match(rt, fl->oif, flags);
         BACKTRACK(&fl->fl6_src);
         dst_hold(&rt->u.dst);
 out:
@@ -537,7 +534,7 @@ struct rt6_info *rt6_lookup(struct in6_addr *daddr, struct in6_addr *saddr,
                 },
         };
         struct dst_entry *dst;
-        int flags = strict ? RT6_F_STRICT : 0;
+        int flags = strict ? RT6_LOOKUP_F_IFACE : 0;
 
         dst = fib6_rule_lookup(&fl, flags, ip6_pol_route_lookup);
         if (dst->error == 0)
@@ -633,10 +630,9 @@ static struct rt6_info *ip6_pol_route_input(struct fib6_table *table,
         int strict = 0;
         int attempts = 3;
         int err;
-        int reachable = RT6_SELECT_F_REACHABLE;
+        int reachable = RT6_LOOKUP_F_REACHABLE;
 
-        if (flags & RT6_F_STRICT)
-                strict = RT6_SELECT_F_IFACE;
+        strict |= flags & RT6_LOOKUP_F_IFACE;
 
 relookup:
         read_lock_bh(&table->tb6_lock);
@@ -712,10 +708,7 @@ void ip6_route_input(struct sk_buff *skb)
                 },
                 .proto = iph->nexthdr,
         };
-        int flags = 0;
-
-        if (rt6_need_strict(&iph->daddr))
-                flags |= RT6_F_STRICT;
+        int flags = rt6_need_strict(&iph->daddr) ? RT6_LOOKUP_F_IFACE : 0;
 
         skb->dst = fib6_rule_lookup(&fl, flags, ip6_pol_route_input);
 }
@@ -728,10 +721,9 @@ static struct rt6_info *ip6_pol_route_output(struct fib6_table *table,
         int strict = 0;
         int attempts = 3;
         int err;
-        int reachable = RT6_SELECT_F_REACHABLE;
+        int reachable = RT6_LOOKUP_F_REACHABLE;
 
-        if (flags & RT6_F_STRICT)
-                strict = RT6_SELECT_F_IFACE;
+        strict |= flags & RT6_LOOKUP_F_IFACE;
 
 relookup:
         read_lock_bh(&table->tb6_lock);
@@ -797,7 +789,7 @@ struct dst_entry * ip6_route_output(struct sock *sk, struct flowi *fl)
         int flags = 0;
 
         if (rt6_need_strict(&fl->fl6_dst))
-                flags |= RT6_F_STRICT;
+                flags |= RT6_LOOKUP_F_IFACE;
 
         return fib6_rule_lookup(fl, flags, ip6_pol_route_output);
 }
@@ -1362,7 +1354,7 @@ static struct rt6_info *ip6_route_redirect(struct in6_addr *dest,
                 },
                 .gateway = *gateway,
         };
-        int flags = rt6_need_strict(dest) ? RT6_F_STRICT : 0;
+        int flags = rt6_need_strict(dest) ? RT6_LOOKUP_F_IFACE : 0;
 
         return (struct rt6_info *)fib6_rule_lookup((struct flowi *)&rdfl, flags, __ip6_route_redirect);
 }