From ae375044d31075a31de5a839e07ded7f67b660aa Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 31 Jul 2008 00:38:01 -0700 Subject: netfilter: nf_conntrack_tcp: decrease timeouts while data in unacknowledged In order to time out dead connections quicker, keep track of outstanding data and cap the timeout. Suggested by Herbert Xu. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/netfilter/nf_conntrack_tcp.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/netfilter/nf_conntrack_tcp.h') diff --git a/include/linux/netfilter/nf_conntrack_tcp.h b/include/linux/netfilter/nf_conntrack_tcp.h index 22ce29995f13..a049df4f2236 100644 --- a/include/linux/netfilter/nf_conntrack_tcp.h +++ b/include/linux/netfilter/nf_conntrack_tcp.h @@ -30,6 +30,9 @@ enum tcp_conntrack { /* Be liberal in window checking */ #define IP_CT_TCP_FLAG_BE_LIBERAL 0x08 +/* Has unacknowledged data */ +#define IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED 0x10 + struct nf_ct_tcp_flags { u_int8_t flags; u_int8_t mask; -- cgit