#
# Copyright (C) 2019 Lucian Cristian <lucian.cristian@gmail.com>
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

include $(TOPDIR)/rules.mk
PKG_NAME:=frr
PKG_VERSION:=7.2
PKG_RELEASE:=1

PKG_SOURCE_URL:=https://github.com/FRRouting/frr/releases/download/$(PKG_NAME)-$(PKG_VERSION)/
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
PKG_HASH:=6cd5bfb6975133ccf23cc3f3a1c1c9a3f6d6a6c792c763b3ea010db75b3de5b3
PKG_MAINTAINER:=Lucian Cristian <lucian.cristian@gmail.com>

PKG_DAEMON_AVAILABLE:= \
	babeld \
	bfdd \
	bgpd \
	eigrpd \
	fabricd \
	isisd \
	ldpd \
	nhrpd \
	ospfd \
	ospf6d \
	pbrd \
	pimd \
	ripd \
	ripngd \
	staticd \
	vrrpd


PKG_CONFIG_DEPENDS:= \
	CONFIG_IPV6 \
	CONFIG_FRR_OPENSSL \
	CONFIG_FRR_INTERNAL \
	CONFIG_PACKAGE_frr-libfrr \
	CONFIG_PACKAGE_frr-vtysh \
	CONFIG_PACKAGE_frr-watchfrr \
	CONFIG_PACKAGE_frr-zebra \
	$(patsubst %,CONFIG_PACKAGE_frr-%,$(PKG_DAEMON_AVAILABLE)) \

PKG_BUILD_PARALLEL:=1
PKG_BUILD_DEPENDS:=python3/host
PKG_FIXUP:=autoreconf
PKG_LICENSE:=GPL-2.0

include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/host-build.mk

define Package/frr-libfrr/config
  source "$(SOURCE)/Config.in"
endef

define Package/frr/Default
  SECTION:=net
  CATEGORY:=Network
  SUBMENU:=Routing and Redirection
  URL:=https://www.frrouting.org/
  DEPENDS:=frr
endef

define Package/frr
  $(call Package/frr/Default)
  DEPENDS:=+librt
  TITLE:=The FRRouting (FRR) Software Routing Suite
  MENU:=1
endef

define Package/frr/description
  FRRouting is free software that implements and manages various IPv4 and IPv6
  routing protocols.

  Currently FRRouting supports BGP4, BGP4+, OSPFv2, OSPFv3, RIPv1, RIPv2, RIPng,
  IS-IS, PIM-SM/MSDP, LDP, VRRP and Babel as well as very early support for EIGRP and
  NHRP.
endef

define Package/frr-libfrr
  $(call Package/frr/Default)
  TITLE:=zebra library
  DEPENDS+=+librt +libjson-c +libyang +FRR_OPENSSL:libopenssl
  CONFLICTS:=quagga-libzebra
endef

define Package/frr-vtysh
  $(call Package/frr/Default)
  DEPENDS+=+frr-libfrr +libreadline +libncurses +more
  TITLE:=integrated shell for frr routing software
  CONFLICTS:=quagga-vtysh
endef

define Package/frr-watchfrr
  $(call Package/frr/Default)
  TITLE:=frr watchdog
  DEPENDS+=+frr-libfrr
  DEFAULT:=y if PACKAGE_frr
endef

define Package/frr-zebra
  $(call Package/frr/Default)
  TITLE:=Zebra daemon
  DEPENDS+=+frr-libfrr
  DEFAULT:=y if PACKAGE_frr
  CONFLICTS:=quagga-zebra
endef

##Migrate from quagga
##should test file exists and link in frr folder
#define Package/frr/postinst
##!/bin/sh
#if [ -f /etc/quagga/ospfd.conf ]; then
#    ls to /etc/frr
#    sed enable ospfd daemon
#fi
#exit 0
#endef

define BuildDaemon
    define Package/frr-$(1)
	$$(call Package/frr/Default)
	TITLE:= $(1) routing engine
	DEPENDS+=frr-libfrr $(2)
    endef

    define Package/frr-$(1)/install
	$(INSTALL_DIR) $$(1)/usr/sbin
	if [ "$(1)" != "fabricd" ]; then \
	$(INSTALL_BIN) $(PKG_BUILD_DIR)/build/$(1)/.libs/$(1) $$(1)/usr/sbin/; \
	else \
	$(INSTALL_BIN) $(PKG_BUILD_DIR)/build/isisd/.libs/$(1) $$(1)/usr/sbin/; fi
	if [ "$(1)" == "nhrpd" ]; then \
	$(INSTALL_DIR) $$(1)/usr/lib; \
	$(CP) $(PKG_BUILD_DIR)/build/lib/.libs/libfrrcares.so* $$(1)/usr/lib/; fi
    endef

    $$(eval $$(call BuildPackage,frr-$(1)))
endef

define Package/frr-libfrr/conffiles
/etc/frr/
endef

define Build/Prepare
	$(Build/Prepare/Default)
	mkdir -p $(PKG_BUILD_DIR)/build
endef

define Build/Configure
    ( cd $(PKG_BUILD_DIR)/build/ ; \
    ../configure \
	--host="$(GNU_TARGET_NAME)" \
	--build="$(GNU_HOST_NAME)" \
	CFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS)" \
	CXXFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS)" \
	LDFLAGS="$(TARGET_LDFLAGS) $(EXTRA_LDFLAGS)" \
	HOST_CFLAGS="$(HOST_CFLAGS)" \
	HOST_LDFLAGS="$(HOST_LDFLAGS)" \
	BUILD_CPPFLAGS="$(TARGET_CPPLAGS)" \
	BUILD_CFLAGS="$(TARGET_CFLAGS)" \
	BUILD_LDFLAGS="$(TARGET_LDFLAGS)" \
	--prefix=/usr \
	--enable-shared \
	--disable-static \
	--enable-user=network \
	--enable-group=network \
	--enable-multipath=16 \
	--disable-capabilities \
	--disable-ospfclient \
	--disable-doc \
	--disable-backtrace \
	--localstatedir=/var/run/frr \
	--sysconfdir=/etc/frr/ \
	$(if $(CONFIG_FRR_OPENSSL),--with-crypto=openssl,) \
	$(foreach m,$(PKG_DAEMON_AVAILABLE), \
	$(if $(CONFIG_PACKAGE_frr-$(m)),--enable-$(m),--disable-$(m)) ) \
)
endef

#	just speed it up
NUM_CORES ?= $(shell grep -c "vendor_id" /proc/cpuinfo)

define Build/Compile
	$(MAKE) -C $(PKG_BUILD_DIR)/build -j$(NUM_CORES)
endef

define Package/frr/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(INSTALL_BIN) ./files/frrcommon.sh $(1)/usr/sbin/
	$(INSTALL_DIR) $(1)/etc/init.d
	$(INSTALL_BIN) ./files/frr $(1)/etc/init.d/
endef

define Package/frr-watchfrr/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(INSTALL_BIN) ./files/watchfrr.sh $(1)/usr/sbin/
	$(INSTALL_BIN) $(PKG_BUILD_DIR)/build/watchfrr/.libs/watchfrr $(1)/usr/sbin/
endef

define Package/frr-zebra/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(INSTALL_BIN) $(PKG_BUILD_DIR)/build/zebra/.libs/zebra $(1)/usr/sbin/
endef

define Package/frr-libfrr/install
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_BUILD_DIR)/build/lib/.libs/libfrr.so* $(1)/usr/lib/
	$(INSTALL_DIR) $(1)/etc/frr
	chmod 0750 $(1)/etc/frr
	$(INSTALL_CONF) ./files/{frr.conf,daemons} $(1)/etc/frr/
endef

$(eval $(call HostBuild))
$(eval $(call BuildPackage,frr))
$(eval $(call BuildPackage,frr-libfrr))
$(eval $(call BuildPackage,frr-watchfrr))
$(eval $(call BuildPackage,frr-zebra))
$(eval $(call BuildPackage,frr-vtysh))
$(eval $(call BuildDaemon,babeld,))
$(eval $(call BuildDaemon,bfdd,))
$(eval $(call BuildDaemon,bgpd,))
$(eval $(call BuildDaemon,eigrpd,))
$(eval $(call BuildDaemon,fabricd,))
$(eval $(call BuildDaemon,isisd,))
$(eval $(call BuildDaemon,ldpd,))
$(eval $(call BuildDaemon,nhrpd,+libcares))
$(eval $(call BuildDaemon,ospfd,))
$(eval $(call BuildDaemon,ospf6d,@IPV6))
$(eval $(call BuildDaemon,pbrd,))
$(eval $(call BuildDaemon,pimd,))
$(eval $(call BuildDaemon,ripd,))
$(eval $(call BuildDaemon,ripngd,@IPV6))
$(eval $(call BuildDaemon,staticd,))
$(eval $(call BuildDaemon,vrrpd,))