inet: constify ip headers and in6_addr

[deliverable/linux.git] / include / net / route.h

diff --git a/include/net/route.h b/include/net/route.h
index 30d6cae3841af7ef73ffe09f3c6895c1b4cdb6db..b3962e249e14eddce71f4015a3723397b39fb272 100644 (file)
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -64,6 +64,7 @@ struct rtable {
 
        __be32                  rt_dst; /* Path destination     */
        __be32                  rt_src; /* Path source          */
+       int                     rt_route_iif;
        int                     rt_iif;
        int                     rt_oif;
        __u32                   rt_mark;
@@ -80,12 +81,12 @@ struct rtable {
 
 static inline bool rt_is_input_route(struct rtable *rt)
 {
-       return rt->rt_iif != 0;
+       return rt->rt_route_iif != 0;
 }
 
 static inline bool rt_is_output_route(struct rtable *rt)
 {
-       return rt->rt_iif == 0;
+       return rt->rt_route_iif == 0;
 }
 
 struct ip_rt_acct {
@@ -149,17 +150,12 @@ static inline struct rtable *ip_route_output_ports(struct net *net, struct sock
                                                   __be16 dport, __be16 sport,
                                                   __u8 proto, __u8 tos, int oif)
 {
-       struct flowi4 fl4 = {
-               .flowi4_oif = oif,
-               .flowi4_flags = sk ? inet_sk_flowi_flags(sk) : 0,
-               .flowi4_mark = sk ? sk->sk_mark : 0,
-               .daddr = daddr,
-               .saddr = saddr,
-               .flowi4_tos = tos,
-               .flowi4_proto = proto,
-               .fl4_dport = dport,
-               .fl4_sport = sport,
-       };
+       struct flowi4 fl4;
+
+       flowi4_init_output(&fl4, oif, sk ? sk->sk_mark : 0, tos,
+                          RT_SCOPE_UNIVERSE, proto,
+                          sk ? inet_sk_flowi_flags(sk) : 0,
+                          daddr, saddr, dport, sport);
        if (sk)
                security_sk_classify_flow(sk, flowi4_to_flowi(&fl4));
        return ip_route_output_flow(net, &fl4, sk);
@@ -195,7 +191,8 @@ static inline int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 s
        return ip_route_input_common(skb, dst, src, tos, devin, true);
 }
 
-extern unsigned short  ip_rt_frag_needed(struct net *net, struct iphdr *iph, unsigned short new_mtu, struct net_device *dev);
+extern unsigned short  ip_rt_frag_needed(struct net *net, const struct iphdr *iph,
+                                         unsigned short new_mtu, struct net_device *dev);
 extern void            ip_rt_send_redirect(struct sk_buff *skb);
 
 extern unsigned                inet_addr_type(struct net *net, __be32 addr);
@@ -207,6 +204,7 @@ extern int          ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb);
 
 struct in_ifaddr;
 extern void fib_add_ifaddr(struct in_ifaddr *);
+extern void fib_del_ifaddr(struct in_ifaddr *, struct in_ifaddr *);
 
 static inline void ip_rt_put(struct rtable * rt)
 {
@@ -228,25 +226,21 @@ static inline struct rtable *ip_route_connect(__be32 dst, __be32 src, u32 tos,
                                              __be16 sport, __be16 dport,
                                              struct sock *sk, bool can_sleep)
 {
-       struct flowi4 fl4 = {
-               .flowi4_oif = oif,
-               .flowi4_mark = sk->sk_mark,
-               .daddr = dst,
-               .saddr = src,
-               .flowi4_tos = tos,
-               .flowi4_proto = protocol,
-               .fl4_sport = sport,
-               .fl4_dport = dport,
-       };
        struct net *net = sock_net(sk);
        struct rtable *rt;
+       struct flowi4 fl4;
+       __u8 flow_flags;
 
+       flow_flags = 0;
        if (inet_sk(sk)->transparent)
-               fl4.flowi4_flags |= FLOWI_FLAG_ANYSRC;
+               flow_flags |= FLOWI_FLAG_ANYSRC;
        if (protocol == IPPROTO_TCP)
-               fl4.flowi4_flags |= FLOWI_FLAG_PRECOW_METRICS;
+               flow_flags |= FLOWI_FLAG_PRECOW_METRICS;
        if (can_sleep)
-               fl4.flowi4_flags |= FLOWI_FLAG_CAN_SLEEP;
+               flow_flags |= FLOWI_FLAG_CAN_SLEEP;
+
+       flowi4_init_output(&fl4, oif, sk->sk_mark, tos, RT_SCOPE_UNIVERSE,
+                          protocol, flow_flags, dst, src, dport, sport);
 
        if (!dst || !src) {
                rt = __ip_route_output_key(net, &fl4);
@@ -266,20 +260,17 @@ static inline struct rtable *ip_route_newports(struct rtable *rt,
                                               __be16 dport, struct sock *sk)
 {
        if (sport != orig_sport || dport != orig_dport) {
-               struct flowi4 fl4 = {
-                       .flowi4_oif = rt->rt_oif,
-                       .flowi4_mark = rt->rt_mark,
-                       .daddr = rt->rt_key_dst,
-                       .saddr = rt->rt_key_src,
-                       .flowi4_tos = rt->rt_tos,
-                       .flowi4_proto = protocol,
-                       .fl4_sport = sport,
-                       .fl4_dport = dport
-               };
+               struct flowi4 fl4;
+               __u8 flow_flags;
+
+               flow_flags = 0;
                if (inet_sk(sk)->transparent)
-                       fl4.flowi4_flags |= FLOWI_FLAG_ANYSRC;
+                       flow_flags |= FLOWI_FLAG_ANYSRC;
                if (protocol == IPPROTO_TCP)
-                       fl4.flowi4_flags |= FLOWI_FLAG_PRECOW_METRICS;
+                       flow_flags |= FLOWI_FLAG_PRECOW_METRICS;
+               flowi4_init_output(&fl4, rt->rt_oif, rt->rt_mark, rt->rt_tos,
+                                  RT_SCOPE_UNIVERSE, protocol, flow_flags,
+                                  rt->rt_dst, rt->rt_src, dport, sport);
                ip_rt_put(rt);
                security_sk_classify_flow(sk, flowi4_to_flowi(&fl4));
                return ip_route_output_flow(sock_net(sk), &fl4, sk);