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packages/net/ddns-scripts/Makefile
Mathias Kresin 1416770e3b ddns-scripts: add support for glue records 
Assuming the following dns zone configuration for kresin.me:

.                   1800  IN  NS  ns.inwx.de.
home.kresin.me.     1800  IN  NS  gw.home.kresin.me.
gw.home.kresin.me.  60    IN  A   198.51.100.1

Using the example, gw.home.kresin.me is a glue record and used as DDNS
record as well. gw.home.kresin.me points to the OpenWrt installation
where the ddns-scripts are running.

Since ns.inwx.de isn't the authoritative server for home.kresin.me,
a query for the the A record of gw.home.kresin.me will be "forwarded"
to and replied by the authoritative server 198.51.100.1. If the
authoritative server can't be reached, the query times out without any
address returned.

The only way to get the A record of the glue record is to use bind
host in verbose output mode, query ns.inwx.de for gw.home.kresin.me and
evaluate the additional section of the response.

To my knowledge, only bind host in verbose output mode shows the
additional section of the response. Therefore, this features depends on
bind host.

It is not possible to use the bind host verbose mode for all queries.
In verbose mode the "has address" line isn't returned. Grepping for the
hostname might fail if the hostname is CNAME. Grepping for the first
occurrence of an ip-address is way to error prone, since it could
return the ip address of a different record type.

Signed-off-by: Mathias Kresin <dev@kresin.me>
2016-06-01 20:59:47 +02:00

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Makefile
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#
# Copyright (C) 2008-2016 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
#
include $(TOPDIR)/rules.mk
PKG_NAME:=ddns-scripts
# Version == major.minor.patch
# increase on new functionality (minor) or patches (patch)
PKG_VERSION:=2.7.1
# Release == build
# increase on changes of services files or tld_names.dat
PKG_RELEASE:=2
PKG_LICENSE:=GPL-2.0
PKG_MAINTAINER:=Christian Schoenebeck <christian.schoenebeck@gmail.com>
include $(INCLUDE_DIR)/package.mk
# no default dependencies
PKG_DEFAULT_DEPENDS=
define Package/$(PKG_NAME)/Default
SECTION:=net
CATEGORY:=Network
SUBMENU:=IP Addresses and Names
PKGARCH:=all
endef
##### **********************************
define Package/$(PKG_NAME)
$(call Package/$(PKG_NAME)/Default)
TITLE:=Dynamic DNS Client scripts (with IPv6 support)
endef
# shown in LuCI package description
define Package/$(PKG_NAME)/description
Dynamic DNS Client scripts (with IPv6 support) - Info: http://wiki.openwrt.org/doc/howto/ddns.client
endef
# shown in menuconfig <Help>
define Package/$(PKG_NAME)/config
help
A highly configurable set of scripts for doing dynamic dns updates.
- IPv6 support
- force communication to IPv4 or IPv6 only
- DNS server support
- using BIND host if installed
- DNS requests via TCP
- Proxy server support
- log file support
- support to run once
Version: $(PKG_VERSION)-$(PKG_RELEASE)
Info : http://wiki.openwrt.org/doc/howto/ddns.client
$(PKG_MAINTAINER)
endef
##### **********************************
define Package/$(PKG_NAME)_cloudflare
$(call Package/$(PKG_NAME)/Default)
TITLE:=DDNS extension for CloudFlare.com
DEPENDS:=$(PKG_NAME)
endef
define Package/$(PKG_NAME)_cloudflare/description
Dynamic DNS Client scripts extension for CloudFlare.com
endef
##### **********************************
define Package/$(PKG_NAME)_no-ip_com
$(call Package/$(PKG_NAME)/Default)
TITLE:=DDNS extension for No-IP.com
DEPENDS:=$(PKG_NAME)
endef
define Package/$(PKG_NAME)_no-ip_com/description
Dynamic DNS Client scripts extension for No-IP.com
endef
##### **********************************
define Package/$(PKG_NAME)_nsupdate
$(call Package/$(PKG_NAME)/Default)
TITLE:=DDNS extension using Bind nsupdate
DEPENDS:=$(PKG_NAME) +bind-client
endef
define Package/$(PKG_NAME)_nsupdate/description
Dynamic DNS Client scripts extension for direct updates using Bind nsupdate
endef
define Package/$(PKG_NAME)_nsupdate/config
help
The script directly updates a PowerDNS (or maybe bind server) via nsupdate
from bind-client package. It requires
"option dns_server" to be set to the server to be used by nsupdate.
"option username" should be set to the key name and
"option password" to the base64 encoded shared secret.
endef
##### **********************************
define Build/Configure
endef
define Build/Compile
$(CP) ./files $(PKG_BUILD_DIR)
for FILE in `find $(PKG_BUILD_DIR)/files -type f`; do \
$(SED) 's/^\s*#/#/' \
-e '/^#\s\|^#$$$$/d' \
-e 's/\s#\s.*$$$$//' \
-e 's/\s*$$$$//' \
-e '/^\/\/\s/d' \
-e '/^\s*$$$$/d' $$$$FILE; \
done
gzip -f9 $(PKG_BUILD_DIR)/files/tld_names.dat
endef
define Package/$(PKG_NAME)/conffiles
/etc/config/ddns
endef
##### **********************************
define Package/$(PKG_NAME)/install
$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
$(INSTALL_BIN) $(PKG_BUILD_DIR)/files/ddns.hotplug $(1)/etc/hotplug.d/iface/95-ddns
$(INSTALL_DIR) $(1)/etc/init.d
$(INSTALL_BIN) $(PKG_BUILD_DIR)/files/ddns.init $(1)/etc/init.d/ddns
$(INSTALL_DIR) $(1)/etc/config
$(INSTALL_CONF) $(PKG_BUILD_DIR)/files/ddns.config $(1)/etc/config/ddns
$(INSTALL_DIR) $(1)/usr/lib/ddns
$(INSTALL_DATA) $(PKG_BUILD_DIR)/files/services* $(1)/usr/lib/ddns
$(INSTALL_BIN) $(PKG_BUILD_DIR)/files/dynamic_*.sh $(1)/usr/lib/ddns
endef
define Package/$(PKG_NAME)/postinst
#!/bin/sh
# if run within buildroot exit
[ -n "$${IPKG_INSTROOT}" ] && exit 0
# add new section "ddns" "global" if not exists
uci -q get ddns.global > /dev/null || uci -q set ddns.global='ddns'
uci -q get ddns.global.date_format > /dev/null || uci -q set ddns.global.date_format='%F %R'
uci -q get ddns.global.log_lines > /dev/null || uci -q set ddns.global.log_lines='250'
uci -q get ddns.global.allow_local_ip > /dev/null || uci -q set ddns.global.allow_local_ip='0'
uci -q commit ddns
# clear LuCI indexcache
rm -f /tmp/luci-indexcache >/dev/null 2>&1
exit 0
endef
define Package/$(PKG_NAME)/prerm
#!/bin/sh
# if run within buildroot exit
[ -n "$${IPKG_INSTROOT}" ] && exit 0
# stop running scripts
/etc/init.d/ddns disable
/etc/init.d/ddns stop
# clear LuCI indexcache
rm -f /tmp/luci-indexcache >/dev/null 2>&1
exit 0
endef
##### **********************************
define Package/$(PKG_NAME)_cloudflare/install
$(INSTALL_DIR) $(1)/usr/lib/ddns
$(INSTALL_BIN) $(PKG_BUILD_DIR)/files/update_cloudflare_com.sh $(1)/usr/lib/ddns
$(INSTALL_DATA) $(PKG_BUILD_DIR)/files/tld_names.dat.gz $(1)/usr/lib/ddns
endef
define Package/$(PKG_NAME)_cloudflare/postinst
#!/bin/sh
echo -e '"cloudflare.com"\t"update_cloudflare_com.sh"' >> $${IPKG_INSTROOT}/usr/lib/ddns/services
echo -e '"cloudflare.com"\t"update_cloudflare_com.sh"' >> $${IPKG_INSTROOT}/usr/lib/ddns/services_ipv6
/bin/sed -i '/service_name/s/CloudFlare/cloudflare\.com/g' $${IPKG_INSTROOT}/etc/config/ddns
endef
define Package/$(PKG_NAME)_cloudflare/prerm
#!/bin/sh
/bin/sed -i '/update_cloudflare_com\.sh/ d' $${IPKG_INSTROOT}/usr/lib/ddns/services
/bin/sed -i '/update_cloudflare_com\.sh/ d' $${IPKG_INSTROOT}/usr/lib/ddns/services_ipv6
endef
##### **********************************
define Package/$(PKG_NAME)_no-ip_com/install
$(INSTALL_DIR) $(1)/usr/lib/ddns
$(INSTALL_BIN) $(PKG_BUILD_DIR)/files/update_no-ip_com.sh $(1)/usr/lib/ddns
endef
define Package/$(PKG_NAME)_no-ip_com/postinst
#!/bin/sh
echo -e '"no-ip.com"\t"update_no-ip_com.sh"' >> $${IPKG_INSTROOT}/usr/lib/ddns/services
/bin/sed -i '/service_name/s/NoIP\.com/no-ip\.com/g' $${IPKG_INSTROOT}/etc/config/ddns
/bin/sed -i '/service_name/s/No-IP\.com/no-ip\.com/g' $${IPKG_INSTROOT}/etc/config/ddns
endef
define Package/$(PKG_NAME)_no-ip_com/prerm
#!/bin/sh
/bin/sed -i '/update_no-ip_com\.sh/ d' $${IPKG_INSTROOT}/usr/lib/ddns/services
endef
##### **********************************
define Package/$(PKG_NAME)_nsupdate/install
$(INSTALL_DIR) $(1)/usr/lib/ddns
$(INSTALL_BIN) $(PKG_BUILD_DIR)/files/update_nsupdate.sh $(1)/usr/lib/ddns
endef
define Package/$(PKG_NAME)_nsupdate/postinst
#!/bin/sh
echo -e '"bind-nsupdate"\t"update_nsupdate.sh"' >> $${IPKG_INSTROOT}/usr/lib/ddns/services
echo -e '"bind-nsupdate"\t"update_nsupdate.sh"' >> $${IPKG_INSTROOT}/usr/lib/ddns/services_ipv6
/bin/sed -i '/service_name/s/Bind-nsupdate/bind-nsupdate/g' $${IPKG_INSTROOT}/etc/config/ddns
endef
define Package/$(PKG_NAME)_nsupdate/prerm
#!/bin/sh
/bin/sed -i '/update_nsupdate\.sh/ d' $${IPKG_INSTROOT}/usr/lib/ddns/services
/bin/sed -i '/update_nsupdate\.sh/ d' $${IPKG_INSTROOT}/usr/lib/ddns/services_ipv6
endef
##### **********************************
$(eval $(call BuildPackage,$(PKG_NAME)))
$(eval $(call BuildPackage,$(PKG_NAME)_cloudflare))
$(eval $(call BuildPackage,$(PKG_NAME)_no-ip_com))
$(eval $(call BuildPackage,$(PKG_NAME)_nsupdate))
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