###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2007-2025  IPFire Team  <info@ipfire.org>                     #
#                                                                             #
# This program is free software: you can redistribute it and/or modify        #
# it under the terms of the GNU General Public License as published by        #
# the Free Software Foundation, either version 3 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# This program is distributed in the hope that it will be useful,             #
# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
# GNU General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License           #
# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################

###############################################################################
# Definitions
###############################################################################

include Config

VER        = 6.0.4

THISAPP    = strongswan-$(VER)
DL_FILE    = $(THISAPP).tar.bz2
DL_FROM    = $(URL_IPFIRE)
DIR_APP    = $(DIR_SRC)/strongswan-$(VER)
TARGET     = $(DIR_INFO)/$(THISAPP)

# Fix build with GCC 15
CFLAGS += -std=gnu17

###############################################################################
# Top-level Rules
###############################################################################

objects = $(DL_FILE)

$(DL_FILE) = $(DL_FROM)/$(DL_FILE)

$(DL_FILE)_BLAKE2 = 2291900bda3e679cb68f35e44fe20011d82b44e7a9ed3fd0ae7c40ed57154c5ecded1ab5bffc9ab30c93de667ef9b103a7da1a2b31d8e2eae97b268f0be11f01

install : $(TARGET)

check : $(patsubst %,$(DIR_CHK)/%,$(objects))

download :$(patsubst %,$(DIR_DL)/%,$(objects))

b2 : $(subst %,%_BLAKE2,$(objects))

###############################################################################
# Downloading, checking, b2sum
###############################################################################

$(patsubst %,$(DIR_CHK)/%,$(objects)) :
	@$(CHECK)

$(patsubst %,$(DIR_DL)/%,$(objects)) :
	@$(LOAD)

$(subst %,%_BLAKE2,$(objects)) :
	@$(B2SUM)

###############################################################################
# Installation Details
###############################################################################

$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
	@$(PREBUILD)
	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar axf $(DIR_DL)/$(DL_FILE)
	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/strongswan-disable-ipv6.patch
	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/strongswan-ipfire.patch
	$(UPDATE_AUTOMAKE)
	cd $(DIR_APP) && ./configure \
				--prefix="/usr" \
				--sysconfdir="/etc" \
				--enable-curl \
				--enable-dhcp \
				--enable-farp \
				--enable-openssl \
				--enable-gcrypt \
				--enable-ccm \
				--enable-ctr \
				--enable-gcm \
				--enable-xauth-eap \
				--enable-xauth-noauth \
				--enable-eap-radius \
				--enable-eap-tls \
				--enable-eap-ttls \
				--enable-eap-peap \
				--enable-eap-mschapv2 \
				--enable-eap-identity \
				--enable-chapoly \
				--enable-sha3 \
				--enable-stroke \
				--enable-fips-prf \
				--enable-mgf1 \
				--enable-hmac \
				--enable-ml \
				$(CONFIGURE_OPTIONS)
	cd $(DIR_APP) && make $(MAKETUNING)
	cd $(DIR_APP) && make install

	# Remove all library files we don't want or need.
	rm -vf /usr/lib/ipsec/plugins/*.{,l}a

	rm -f /etc/ipsec.conf /etc/ipsec.secrets
	ln -sf $(CONFIG_ROOT)/vpn/ipsec.conf /etc/ipsec.conf
	ln -sf $(CONFIG_ROOT)/vpn/ipsec.secrets /etc/ipsec.secrets

	rm -rf /etc/ipsec.d/{cacerts,certs,crls}
	ln -sf $(CONFIG_ROOT)/ca    /etc/ipsec.d/cacerts
	ln -sf $(CONFIG_ROOT)/certs /etc/ipsec.d/certs
	ln -sf $(CONFIG_ROOT)/crls  /etc/ipsec.d/crls

	install -v -m 644 $(DIR_SRC)/config/strongswan/charon.conf \
		/etc/strongswan.d/charon.conf

	@rm -rf $(DIR_APP)
	@$(POSTBUILD)