add adaptive, interval, and frag timeouts to pf.conf and BNF

ok henning@ dhartmei@

src/etc/pf.conf

@@ -1,4 +1,4 @@
-#	$OpenBSD: pf.conf,v 1.19 2003/03/24 01:47:28 ian Exp $
+#	$OpenBSD: pf.conf,v 1.20 2003/06/17 21:48:10 david Exp $
 #
 # See pf.conf(5) and /usr/share/pf for syntax and examples.
 # Required order: options, normalization, queueing, translation, filtering.
@@ -15,12 +15,13 @@
 #table <foo> { 10.0.0.0/8, !10.1.0.0/16, 192.168.0.0/24, 192.168.1.18 }
 
 # Options: tune the behavior of pf, default values are given.
-#set timeout { interval 30, frag 10 }
+#set timeout { interval 10, frag 30 }
 #set timeout { tcp.first 120, tcp.opening 30, tcp.established 86400 }
 #set timeout { tcp.closing 900, tcp.finwait 45, tcp.closed 90 }
 #set timeout { udp.first 60, udp.single 30, udp.multiple 60 }
 #set timeout { icmp.first 20, icmp.error 10 }
 #set timeout { other.first 60, other.single 30, other.multiple 60 }
+#set timeout { adaptive.start 0, adaptive.end 0 }
 #set limit { states 10000, frags 5000 }
 #set loginterface none
 #set optimization normal