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authorRick Jones <rick.jones2@hp.com>2006-03-20 22:40:29 -0800
committerDavid S. Miller <davem@davemloft.net>2006-03-20 22:40:29 -0800
commit15d99e02babae8bc20b836917ace07d93e318149 (patch)
tree6a8941a3ef45f831161730aeee4a2fcc18cca78a /net/ipv4/sysctl_net_ipv4.c
parentc1b1bce8527c2c3cac7e2520ca54b7c04281033e (diff)
[TCP]: sysctl to allow TCP window > 32767 sans wscale
Back in the dark ages, we had to be conservative and only allow 15-bit window fields if the window scale option was not negotiated. Some ancient stacks used a signed 16-bit quantity for the window field of the TCP header and would get confused. Those days are long gone, so we can use the full 16-bits by default now. There is a sysctl added so that we can still interact with such old stacks Signed-off-by: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/sysctl_net_ipv4.c')
-rw-r--r--net/ipv4/sysctl_net_ipv4.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index ebf2e0b363c..6b6c3adfcf0 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -680,7 +680,14 @@ ctl_table ipv4_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec,
},
-
+ {
+ .ctl_name = NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS,
+ .procname = "tcp_workaround_signed_windows",
+ .data = &sysctl_tcp_workaround_signed_windows,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
{ .ctl_name = 0 }
};