290 typedef struct Limbo Limbo;  typedef
291 struct Limbo  struct
293 	Limbo	*next;  argument
295 	uchar	laddr[IPaddrlen];
296 	uchar	raddr[IPaddrlen];
297 	ushort	lport;
298 	ushort	rport;
299 	ulong	irs;		/* initial received sequence */
300 	ulong	iss;		/* initial sent sequence */
301 	ushort	mss;		/* mss from the other end */
302 	ushort	rcvscale;	/* how much to scale rcvd windows */
303 	ushort	sndscale;	/* how much to scale sent windows */
304 	ulong	lastsend;	/* last time we sent a synack */
305 	uchar	version;	/* v4 or v6 */
306 	uchar	rexmits;	/* number of retransmissions */