#!/bin/rc
# addroutes [netdir] - add local (mainly ipv6) routes to network
rfork e

if (~ $#* 0)
	cd /net
if not
	cd $1
#if(! test -e iproute)	# 9vx potentially doesn't have /net/iproute
#	exit ''

# pfx=2603:3024:90c:9e		# old comcast
# subnet=8
pfx=2001:470:8277:00		# new he.net
subnet=0
v6prefix=$pfx$subnet^2::	# 2 is our public house network

echo -n 'boot.env...'
progress=yes awaitfile 10 /srv/boot.env

test -e /srv/boot.env && mount /srv/boot.env /n/env &&
    test -e /n/env/v6prefix && {	# from ipv6on
	v6prefix=`{cat /n/env/v6prefix}			# a /64
	pfx=`{echo $"v6prefix | sed 's/..::$//'}	# a /56
	subnet=`{echo $"v6prefix | sed 's/^.*(.).::/\1/'} # sla digit
	echo -n v6 sla: $subnet...
}

if(grep -s '^10\.0\.' ipselftab) {	# on private network 10 only
	echo -n 'private net: '

	# default v6 route towards internet via nat.
	echo -n 'v6 default route...'
	echo add :: /0 $pfx^$subnet^1::6 >iproute
}
if not {				# on public network
	echo -n 'public net: '
	# ipv4 default is fw, and should be ipv6 default from RA (from RS)

	# route to private network from public via nat in fw.
	# NB: subnet masks are v6, even for v4 addresses
	echo -n 'v4 default route...'
	echo add 10.0.0.0 /104 96.78.174.36 >iproute

	# default v6 route to comcast-gw via fw & net 10
	echo -n 'v6 default route...'
	echo add :: /0 $pfx^$subnet^2::2 >iproute

	# route to private network from public.
	echo add $pfx^$subnet^1:: /64 $pfx^$subnet^2::2 >iproute

	# remove bogus private v6 address until we find out where it comes from
	echo remove $pfx^$subnet^1:: /64 >iproute
}
echo