Module Name:	syssrc
Committed By:	itojun
Date:		Sat Dec  9 01:29:53 UTC 2000

Modified Files:
	syssrc/sys/net: route.c route.h
	syssrc/sys/netinet: icmp6.h tcp_subr.c
	syssrc/sys/netinet6: ah_input.c esp_input.c icmp6.c udp6_usrreq.c

Log Message:
update icmp6 too big validation.  the change is necessary since pmtud is
mandatory for IPv6 (so we can't just validate by using connected pcb - we need
to allow traffic from unconnected pcb to do pmtud).
- if the traffic is validated by xx_ctlinput, allow up to "hiwat" pmtud
  route entries.
- if the traffic was not validated by xx_ctlinput, allow up to "lowat" pmtud
  route entries (there's upper limit, so bad guys cannot blow up our routing
  table).
sync with kame

XXX need to think again about default hiwat/lowat value.
XXX victim selection to help starvation case


To generate a diff of this commit:
cvs rdiff -r1.36 -r1.37 syssrc/sys/net/route.c
cvs rdiff -r1.22 -r1.23 syssrc/sys/net/route.h
cvs rdiff -r1.15 -r1.16 syssrc/sys/netinet/icmp6.h
cvs rdiff -r1.103 -r1.104 syssrc/sys/netinet/tcp_subr.c
cvs rdiff -r1.22 -r1.23 syssrc/sys/netinet6/ah_input.c
cvs rdiff -r1.12 -r1.13 syssrc/sys/netinet6/esp_input.c
cvs rdiff -r1.47 -r1.48 syssrc/sys/netinet6/icmp6.c
cvs rdiff -r1.35 -r1.36 syssrc/sys/netinet6/udp6_usrreq.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.