odhcp6c: add RFC 7278 3gpp IPv6 prefix extension

Use option extendprefix 1 to enable

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

SVN-Revision: 46779

package/network/ipv6/odhcp6c/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=odhcp6c
-PKG_VERSION:=2015-07-29
+PKG_VERSION:=2015-09-03
 PKG_RELEASE=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2

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

@@ -77,6 +77,11 @@ setup_interface () {
 				-z "$RA_DNS" -a "$FAKE_ROUTES" = 1 ]; then
 			RA_ROUTES="::/0,$SERVER,$valid,4096"
 		fi
+
+		# RFC 7278
+		if [ "$mask" -eq 64 -a -z "$PREFIXES" -a -n "$EXTENDPREFIX" ]; then
+			proto_add_ipv6_prefix "$entry"
+		fi
 	done
 
 	for entry in $RA_ROUTES; do

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

@@ -13,6 +13,7 @@ proto_dhcpv6_init_config() {
 	proto_config_add_string 'reqopts:list(uinteger)'
 	proto_config_add_string 'noslaaconly:bool'
 	proto_config_add_string 'forceprefix:bool'
+	proto_config_add_string 'extendprefix:bool'
 	proto_config_add_string 'norelease:bool'
 	proto_config_add_string 'ip6prefix:ip6addr'
 	proto_config_add_string iface_dslite
@@ -35,8 +36,8 @@ proto_dhcpv6_setup() {
 	local config="$1"
 	local iface="$2"
 
-	local reqaddress reqprefix clientid reqopts noslaaconly forceprefix norelease ip6prefix iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass delegate zone_dslite zone_map zone_464xlat zone soltimeout fakeroutes sourcefilter
-	json_get_vars reqaddress reqprefix clientid reqopts noslaaconly forceprefix norelease ip6prefix iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass delegate zone_dslite zone_map zone_464xlat zone soltimeout fakeroutes sourcefilter
+	local reqaddress reqprefix clientid reqopts noslaaconly forceprefix extendprefix norelease ip6prefix iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass delegate zone_dslite zone_map zone_464xlat zone soltimeout fakeroutes sourcefilter
+	json_get_vars reqaddress reqprefix clientid reqopts noslaaconly forceprefix extendprefix norelease ip6prefix iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass delegate zone_dslite zone_map zone_464xlat zone soltimeout fakeroutes sourcefilter
 
 
 	# Configure
@@ -78,6 +79,7 @@ proto_dhcpv6_setup() {
 	[ -n "$zone" ] && proto_export "ZONE=$zone"
 	[ "$fakeroutes" != "0" ] && proto_export "FAKE_ROUTES=1"
 	[ "$sourcefilter" = "0" ] && proto_export "NOSOURCEFILTER=1"
+	[ "$extendprefix" = "1" ] && proto_export "EXTENDPREFIX=1"
 
 	proto_export "INTERFACE=$config"
 	proto_run_command "$config" odhcp6c \