[IPV6]: Introduce inet6_rsk()

[deliverable/linux.git] / include / linux / ipv6.h

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index e0b922785d985e5c2a03598303ad011cb0dbc9d4..7d3e86d9576e9f0d216ba153b38989b5529784b6 100644 (file)
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -199,18 +199,17 @@ static inline int inet6_iif(const struct sk_buff *skb)
        return IP6CB(skb)->iif;
 }
 
-struct tcp6_request_sock {
-       struct tcp_request_sock req;
+struct inet6_request_sock {
        struct in6_addr         loc_addr;
        struct in6_addr         rmt_addr;
        struct sk_buff          *pktopts;
        int                     iif;
 };
 
-static inline struct tcp6_request_sock *tcp6_rsk(const struct request_sock *sk)
-{
-       return (struct tcp6_request_sock *)sk;
-}
+struct tcp6_request_sock {
+       struct tcp_request_sock   tcp6rsk_tcp;
+       struct inet6_request_sock tcp6rsk_inet6;
+};
 
 /**
  * struct ipv6_pinfo - ipv6 private area
@@ -304,6 +303,28 @@ static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
        return inet_sk(__sk)->pinet6;
 }
 
+static inline struct inet6_request_sock *
+                       inet6_rsk(const struct request_sock *rsk)
+{
+       return (struct inet6_request_sock *)(((u8 *)rsk) +
+                                            inet_rsk(rsk)->inet6_rsk_offset);
+}
+
+static inline u32 inet6_rsk_offset(struct request_sock *rsk)
+{
+       return rsk->rsk_ops->obj_size - sizeof(struct inet6_request_sock);
+}
+
+static inline struct request_sock *inet6_reqsk_alloc(struct request_sock_ops *ops)
+{
+       struct request_sock *req = reqsk_alloc(ops);
+
+       if (req != NULL)
+               inet_rsk(req)->inet6_rsk_offset = inet6_rsk_offset(req);
+
+       return req;
+}
+
 static inline struct raw6_sock *raw6_sk(const struct sock *sk)
 {
        return (struct raw6_sock *)sk;
@@ -361,6 +382,12 @@ static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
        return NULL;
 }
 
+static inline struct inet6_request_sock *
+                       inet6_rsk(const struct request_sock *rsk)
+{
+       return NULL;
+}
+
 static inline struct raw6_sock *raw6_sk(const struct sock *sk)
 {
        return NULL;