--------------------------
Until entering PARTOPEN the client does not need the adjustments, since it 
constrains the Ack window to the packet it sent.

 * sending first Request: dccp_v{4,6}_connect() choose ISS, 
                          dccp_connect() then sets GAR := ISS (as per 8.5),
			  dccp_transmit_skb() (with the previous bug fix) sets
			         GSS := ISS, AWL := ISS, AWH := GSS
 * n-th retransmitted Request (with previous patch):
	                  dccp_retransmit_skb() via timer calls
			  dccp_transmit_skb(), which sets GSS := ISS+n
                          and then AWL := ISS, AWH := ISS+n
	                  
 * receiving any Response: dccp_rcv_request_sent_state_process() 
	                   -- accepts packet if AWL <= P.ackno <= AWH;
			   -- sets GSR = ISR = P.seqno

 * sending the Ack completing the handshake: dccp_send_ack() calls 
                           dccp_transmit_skb(), which sets GSS += 1
			   and AWL := ISS, AWH := GSS
			   

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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