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Commit 6ee0b693 authored by Changli Gao's avatar Changli Gao Committed by Pablo Neira Ayuso
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netfilter: nf_ct_tcp: don't scale the size of the window up twice 



For a picked up connection, the window win is scaled twice: one is by the
initialization code, and the other is by the sender updating code.

I use the temporary variable swin instead of modifying the variable win.

Signed-off-by: default avatarChangli Gao <xiaosuo@gmail.com>
Acked-by: default avatarJozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent 110c4330

net/netfilter/nf_conntrack_proto_tcp.c

+2 −2
Original line number Diff line number Diff line
@@ -584,8 +584,8 @@ static bool tcp_in_window(const struct nf_conn *ct, 
			 * Let's try to use the data from the packet.

			 */

			sender->td_end = end;

			win <<= sender->td_scale;

			sender->td_maxwin = (win == 0 ? 1 : win);

			swin = win << sender->td_scale;

			sender->td_maxwin = (swin == 0 ? 1 : swin);

			sender->td_maxend = end + sender->td_maxwin;

			/*

			 * We haven't seen traffic in the other direction yet