stream/midstream: be more liberal with window

Use the wscale setting when updating the window, even if it's very
high.

diff --git a/src/stream-tcp.c b/src/stream-tcp.c
index 140cbfbab4886a89ef50569cb153b6c9940ad53a..ae4379f35553db84c3f9cda1ddbc748ae0d97a46 100644 (file)
--- a/src/stream-tcp.c
+++ b/src/stream-tcp.c
@@ -2170,7 +2170,7 @@ static int HandleEstablishedPacketToClient(ThreadVars *tv, TcpSession *ssn, Pack
     if ((ssn->flags & STREAMTCP_FLAG_MIDSTREAM) &&
             (ssn->flags & STREAMTCP_FLAG_MIDSTREAM_ESTABLISHED))
     {
-        ssn->server.window = TCP_GET_WINDOW(p);
+        ssn->server.window = TCP_GET_WINDOW(p) << ssn->server.wscale;
         ssn->server.next_win = ssn->server.last_ack + ssn->server.window;
         ssn->flags &= ~STREAMTCP_FLAG_MIDSTREAM_ESTABLISHED;
         SCLogDebug("ssn %p: adjusted midstream ssn->server.next_win to "