[IPV6]: Introduce inet6_rsk()
And inet6_rsk_offset in inet_request_sock, for the same reasons as
inet_sock's pinfo6 member.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/ip.h b/include/linux/ip.h
index 33e8a19..5a560da 100644
--- a/include/linux/ip.h
+++ b/include/linux/ip.h
@@ -110,6 +110,10 @@
struct inet_request_sock {
struct request_sock req;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ u16 inet6_rsk_offset;
+ /* 2 bytes hole, try to pack */
+#endif
u32 loc_addr;
u32 rmt_addr;
u16 rmt_port;
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index e0b9227..7d3e86d 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -199,18 +199,17 @@
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 @@
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 @@
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;