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authorPavel Emelyanov <xemul@parallels.com>2012-04-19 03:39:36 +0000
committerDavid S. Miller <davem@davemloft.net>2012-04-21 15:52:25 -0400
commit4a17fd5229c1b6066aa478f6b690f8293ce811a1 (patch)
treef6acd00935d2d7a990befb4c77f57fdf39f46689 /include/net
parent59c55bdde856c4000bbeb33ba212c3df6f1997a4 (diff)
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sock: Introduce named constants for sk_reuse
Name them in a "backward compatible" manner, i.e. reuse or not are still 1 and 0 respectively. The reuse value of 2 means that the socket with it will forcibly reuse everyone else's port. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/sock.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index a6ba1f8871fd..4cdb9b3050f4 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -376,6 +376,17 @@ struct sock {
void (*sk_destruct)(struct sock *sk);
};
+/*
+ * SK_CAN_REUSE and SK_NO_REUSE on a socket mean that the socket is OK
+ * or not whether his port will be reused by someone else. SK_FORCE_REUSE
+ * on a socket means that the socket will reuse everybody else's port
+ * without looking at the other's sk_reuse value.
+ */
+
+#define SK_NO_REUSE 0
+#define SK_CAN_REUSE 1
+#define SK_FORCE_REUSE 2
+
static inline int sk_peek_offset(struct sock *sk, int flags)
{
if ((flags & MSG_PEEK) && (sk->sk_peek_off >= 0))