Module Name: src
Committed By: rmind
Date: Mon Dec 26 23:10:46 UTC 2016
Modified Files:
src/sys/net/npf: npf_state_tcp.c
Log Message:
npf_tcp_fsm: fix for the NPF_TCPS_SYN_RECEIVED state.
SYN re-transmission after SYN-ACK was seen by NPF should not terminate
the connection. Thanks to: Alexander Kiselev <kiselev99 at gmail com>
To generate a diff of this commit:
cvs rdiff -u -r1.17 -r1.18 src/sys/net/npf/npf_state_tcp.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/net/npf/npf_state_tcp.c
diff -u src/sys/net/npf/npf_state_tcp.c:1.17 src/sys/net/npf/npf_state_tcp.c:1.18
--- src/sys/net/npf/npf_state_tcp.c:1.17 Mon Dec 26 23:05:06 2016
+++ src/sys/net/npf/npf_state_tcp.c Mon Dec 26 23:10:46 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: npf_state_tcp.c,v 1.17 2016/12/26 23:05:06 christos Exp $ */
+/* $NetBSD: npf_state_tcp.c,v 1.18 2016/12/26 23:10:46 rmind Exp $ */
/*-
* Copyright (c) 2010-2012 The NetBSD Foundation, Inc.
@@ -35,7 +35,7 @@
#ifdef _KERNEL
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: npf_state_tcp.c,v 1.17 2016/12/26 23:05:06 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: npf_state_tcp.c,v 1.18 2016/12/26 23:10:46 rmind Exp $");
#include <sys/param.h>
#include <sys/types.h>
@@ -192,6 +192,8 @@ static const uint8_t npf_tcp_fsm[NPF_TCP
[TCPFC_ACK] = NPF_TCPS_ESTABLISHED,
/* FIN may be sent early. */
[TCPFC_FIN] = NPF_TCPS_FIN_SENT,
+ /* Late SYN re-transmission. */
+ [TCPFC_SYN] = NPF_TCPS_OK,
},
[NPF_FLOW_BACK] = {
/* SYN-ACK may be retransmitted. */
