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authorsilby <silby@FreeBSD.org>2003-11-02 07:47:03 +0000
committersilby <silby@FreeBSD.org>2003-11-02 07:47:03 +0000
commit1bddc356b1744573a6128cf8f8c0fbebfc173571 (patch)
tree078870ac899a25193239c6660b6dea9f4e1405ef /sys/netinet/tcp_var.h
parent841bb23cd98221fbaf9ae257e5be732de6675fb3 (diff)
downloadFreeBSD-src-1bddc356b1744573a6128cf8f8c0fbebfc173571.zip
FreeBSD-src-1bddc356b1744573a6128cf8f8c0fbebfc173571.tar.gz
Add an additional check to the tcp_twrecycleable function; I had
previously only considered the send sequence space. Unfortunately, some OSes (windows) still use a random positive increments scheme for their syn-ack ISNs, so I must consider receive sequence space as well. The value of 250000 bytes / second for Microsoft's ISN rate of increase was determined by testing with an XP machine.
Diffstat (limited to 'sys/netinet/tcp_var.h')
-rw-r--r--sys/netinet/tcp_var.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/netinet/tcp_var.h b/sys/netinet/tcp_var.h
index ceb292f..2e5b3fa 100644
--- a/sys/netinet/tcp_var.h
+++ b/sys/netinet/tcp_var.h
@@ -247,6 +247,7 @@ struct tcptw {
tcp_seq snd_nxt;
tcp_seq rcv_nxt;
tcp_seq iss;
+ tcp_seq irs;
tcp_cc cc_recv;
tcp_cc cc_send;
u_short last_win; /* cached window value */
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