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net: add sk_fullsock() helper

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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@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

[backported from net-next 1d0ab25387]
[lorenzo@google.com: removed TCPF_NEW_SYN_RECV, and added a comment to add it back.]

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>

Bug: 24163529
Change-Id: Ibf09017e1ab00af5e6925273117c335d7f515d73
(cherry picked from commit cdab04e3612c55f0906c84c3c05996a0507eab7d)
This commit is contained in:
Eric Dumazet
2015-03-15 21:12:12 -07:00
committed by Huang, Tao
parent 4937dd7952
commit d1d2a95cc6
1 changed files with 10 additions and 0 deletions
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10
include/net/sock.h
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@@ -67,6 +67,7 @@
#include <linux/atomic.h>
#include <net/dst.h>
#include <net/checksum.h>
#include <net/tcp_states.h>
struct cgroup;
struct cgroup_subsys;
@@ -2251,6 +2252,15 @@ 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.
* TODO: Check for TCPF_NEW_SYN_RECV when that starts to exist.
*/
static inline bool sk_fullsock(const struct sock *sk)
{
return (1 << sk->sk_state) & ~(TCPF_TIME_WAIT);
}
extern void sock_enable_timestamp(struct sock *sk, int flag);
extern int sock_get_timestamp(struct sock *, struct timeval __user *);
extern int sock_get_timestampns(struct sock *, struct timespec __user *);