odhcp6c: work around RIOs matching PIOs as sent by some apple routers

Thanks to Mikael Abrahamsson for reporting.

Signed-off-by: Steven Barth <steven@midlink.org>

SVN-Revision: 45941

package/network/ipv6/odhcp6c/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=odhcp6c
-PKG_VERSION:=2015-06-09
+PKG_VERSION:=2015-06-10
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2

package/network/ipv6/odhcp6c/files/dhcpv6.script

@@ -88,6 +88,10 @@ setup_interface () {
 
 		if [ -z "$gw" ]; then
 			proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid"
+
+			# work around if there is a PIO matching a RIO
+			# Linux seems to prefer source-dest over dest-only even if metric is higher
+			proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid" "$addr/$mask"
 		else
 			for prefix in $PREFIXES $ADDRESSES; do
 				local paddr="${prefix%%,*}"