From: Eric Dumazet <edumazet@xxxxxxxxxx>
This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 1d0ab253872cdd3d8e7913f59c266c7fd01771d0 ]
We have many places where we want to check if a socket is
not a timewait or request socket. Use a helper to avoid
hard coding this.
Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
include/net/sock.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/net/sock.h b/include/net/sock.h
index c8146ed..4406dbe 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -67,6 +67,7 @@
#include <linux/atomic.h>
#include <net/dst.h>
#include <net/checksum.h>
+#include <net/tcp_states.h>
#include <linux/net_tstamp.h>
struct cgroup;
@@ -2267,6 +2268,14 @@ static inline struct sock *skb_steal_sock(struct sk_buff *skb)
return NULL;
}
+/* This helper checks if a socket is a full socket,
+ * ie _not_ a timewait or request socket.
+ */
+static inline bool sk_fullsock(const struct sock *sk)
+{
+ return (1 << sk->sk_state) & ~(TCPF_TIME_WAIT | TCPF_NEW_SYN_RECV);
+}
+
void sock_enable_timestamp(struct sock *sk, int flag);
int sock_get_timestamp(struct sock *, struct timeval __user *);
int sock_get_timestampns(struct sock *, struct timespec __user *);
--
2.1.0
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