#
# Copyright (C) 2009-2014 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:=dnscrypt-proxy
PKG_VERSION:=1.4.0
PKG_RELEASE:=1

PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:=http://download.dnscrypt.org/dnscrypt-proxy
PKG_MD5SUM:=c31d14d8de2123e9f2ddf26216577841
PKG_CAT:=zcat

PKG_FIXUP:=autoreconf
PKG_INSTALL:=1

PKG_MAINTAINER:=Damiano Renfer <damiano.renfer@gmail.com>
PKG_LICENSE:=ISC

include $(INCLUDE_DIR)/package.mk

define Package/dnscrypt-proxy/Default
  SECTION:=net
  CATEGORY:=Network
  SUBMENU:=IP Addresses and Names
  DEPENDS:=+libsodium
  URL:=http://dnscrypt.org/
  MAINTAINER:=Damiano Renfer <damiano.renfer@gmail.com>
endef

define Package/dnscrypt-proxy
  $(call Package/dnscrypt-proxy/Default)
  TITLE:=A tool for securing communications between a client and a DNS resolver
endef

define Package/dnscrypt-proxy/description
  dnscrypt-proxy provides local service which can be used directly as your
  local resolver or as a DNS forwarder, encrypting and authenticating requests
  using the DNSCrypt protocol and passing them to an upstream server.
  The DNSCrypt protocol uses high-speed high-security elliptic-curve cryptography
  and is very similar to DNSCurve, but focuses on securing communications between
  a client and its first-level resolver.
endef

define Package/hostip
  $(call Package/dnscrypt-proxy/Default)
  TITLE:=Resolver to IPv4 or IPv6 addresses
endef

define Package/hostip/description
  The DNSCrypt proxy ships with a simple tool named hostip that resolves a name
  to IPv4 or IPv6 addresses.
endef

define Build/Configure
	$(call Build/Configure/Default, \
	--prefix=/usr \
	--disable-ssp \
	)
endef

TARGET_CFLAGS += \
	-fomit-frame-pointer \
	-fdata-sections \
	-ffunction-sections

TARGET_LDFLAGS += \
	-Wl,-gc-sections

MAKE_FLAGS += \
	CFLAGS="$(TARGET_CFLAGS)" \
	LDFLAGS="$(TARGET_LDFLAGS)"

define Package/dnscrypt-proxy/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/dnscrypt-proxy $(1)/usr/sbin/
	$(INSTALL_DIR) $(1)/usr/share/dnscrypt-proxy
	$(CP) $(PKG_INSTALL_DIR)/usr/share/dnscrypt-proxy/dnscrypt-resolvers.csv $(1)/usr/share/dnscrypt-proxy/
	$(INSTALL_DIR) $(1)/etc/init.d
	$(INSTALL_BIN) ./files/dnscrypt-proxy.init $(1)/etc/init.d/dnscrypt-proxy
	$(INSTALL_DIR) $(1)/etc/config
	$(INSTALL_CONF) ./files/dnscrypt-proxy.config $(1)/etc/config/dnscrypt-proxy
endef

define Package/dnscrypt-proxy/postinst
#!/bin/sh
# check if we are on real system
if [ -z "$${IPKG_INSTROOT}" ]; then
        echo "Enabling rc.d symlink for dnscrypt-proxy"
        /etc/init.d/dnscrypt-proxy enable
fi
exit 0
endef

define Package/dnscrypt-proxy/prerm
#!/bin/sh
# check if we are on real system
if [ -z "$${IPKG_INSTROOT}" ]; then
        echo "Removing rc.d symlink for dnscrypt-proxy"
        /etc/init.d/dnscrypt-proxy disable
fi
exit 0
endef

define Package/dnscrypt-proxy/conffiles
  /etc/config/dnscrypt-proxy
endef

define Package/hostip/install
	$(INSTALL_DIR) $(1)/usr/bin
	$(CP) $(PKG_INSTALL_DIR)/usr/bin/hostip $(1)/usr/bin/
endef

$(eval $(call BuildPackage,dnscrypt-proxy))
$(eval $(call BuildPackage,hostip))