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ipv6: add 6relayd (RD-, DHCPv6- & NDP-Proxy)

6relayd is an IPv6-tool that relays IPv6-management protocols like router
discovery, neighbor discovery and DHCPv6 so that clients on routed
(non-bridged) interfaces can use the public address prefix, DHCPv6 and
DNS-service of a master interface. This is useful to avoid NAT in chained
IPv6-routers.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34008 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
cyrus 2012-10-30 07:14:07 +00:00
parent 550a8ae8a9
commit d3309f03fc
3 changed files with 140 additions and 0 deletions

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#
# Copyright (C) 2012 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
PKG_NAME:=6relayd
PKG_VERSION:=2012-10-29
PKG_RELEASE=$(PKG_SOURCE_VERSION)
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
PKG_SOURCE_URL:=git://nbd.name/6relayd.git
PKG_SOURCE_PROTO:=git
PKG_SOURCE_VERSION:=1e86a847a9aa2c31e6871b657c4d241a4650e290
PKG_MAINTAINER:=Steven Barth <steven@midlink.org>
include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/cmake.mk
define Package/6relayd
SECTION:=ipv6
CATEGORY:=IPv6
TITLE:=IPv6-Relay (RD-, DHCPv6- & NDP-Proxy)
DEPENDS:=+kmod-ipv6
endef
define Package/6relayd/description
6relayd is an IPv6-tool that relays IPv6-management protocols like router
discovery, neighbor discovery and DHCPv6 so that clients on routed (non-
bridged) interfaces can use the public address prefix, DHCPv6 and DNS-service
of a master interface. This is useful to avoid NAT in chained IPv6-routers.
endef
define Package/6relayd/install
$(INSTALL_DIR) $(1)/usr/sbin/
$(INSTALL_BIN) $(PKG_BUILD_DIR)/6relayd $(1)/usr/sbin/
$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
$(INSTALL_DATA) ./files/6relayd.hotplug $(1)/etc/hotplug.d/iface/30-6relay
$(INSTALL_DIR) $(1)/etc/init.d
$(INSTALL_BIN) ./files/6relayd.init $(1)/etc/init.d/6relayd
endef
$(eval $(call BuildPackage,6relayd))

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#!/bin/sh
/etc/init.d/6relayd enabled && /etc/init.d/6relayd start

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#!/bin/sh /etc/rc.common
# Copyright (c) 2011-2012 OpenWrt.org
START=80
resolve_ifname() {
grep -qs "^ *$1:" /proc/net/dev && {
append ifaces "$1"
}
}
resolve_network() {
local ifn
fixup_interface "$1"
config_get ifn "$1" ifname
[ -z "$ifn" ] && return 1
resolve_ifname "$ifn"
}
start_6relayd() {
local cfg="$1"
local args="-S"
local ifaces=""
config_get proto "$cfg" proto
[[ "$proto" == 6relay ]] || return 0
SERVICE_DAEMONIZE=1
SERVICE_WRITE_PID=1
SERVICE_PID_FILE="/var/run/6relayd-$cfg.pid"
[ -f "$SERVICE_PID_FILE" ] && {
if grep -q 6relayd "/proc/$(cat $SERVICE_PID_FILE)/cmdline"; then
return 0
else
rm -f "$SERVICE_PID_FILE"
fi
}
local net networks
config_get networks "$cfg" network
for net in $networks; do
resolve_network "$net" || {
return 1
}
done
local ifn ifnames
config_get ifnames "$cfg" ifname
for ifn in $ifnames; do
resolve_ifname "$ifn"
done
local forward_rd # = 1
config_get_bool forward_rd "$cfg" forward_rd 1
[ $forward_rd -eq 1 ] && append args "-R"
local forward_dhcpv6 # = 1
local forward_dhcpv6_mode # = relay
config_get_bool forward_dhcpv6 "$cfg" forward_dhcpv6 1
config_get forward_dhcpv6_mode "$cfg" forward_dhcpv6_mode
[ $forward_dhcpv6 -eq 1 ] && append args "-D$forward_dhcpv6_mode"
local forward_ndp # = 1
config_get_bool forward_ndp "$cfg" forward_ndp 1
[ $forward_ndp -eq 1 ] && append args "-N"
local configure_routes # = 1
config_get_bool configure_routes "$cfg" configure_routes 1
[ $configure_routes -eq 1 ] && append args "-r"
local always_rewrite_dns # = 0
config_get_bool always_rewrite_dns "$cfg" always_rewrite_dns 0
[ $always_rewrite_dns -eq 1 ] && append args "-n"
service_start /usr/sbin/6relayd $args $ifaces
}
stop() {
for pid in /var/run/6relayd-*.pid; do
SERVICE_PID_FILE="$pid"
service_stop /usr/sbin/6relayd
rm -f "$SERVICE_PID_FILE"
done
}
start() {
include /lib/network
config_load network
config_foreach start_6relayd interface
}