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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=6
# Python extension supports only Python 2.
# See https://github.com/mrash/fwknop/issues/167
PYTHON_COMPAT=( python2_7 )
DISTUTILS_OPTIONAL=1
DISTUTILS_SINGLE_IMPL=1
inherit autotools distutils-r1 eutils linux-info ltprune readme.gentoo-r1 systemd
DESCRIPTION="Single Packet Authorization and Port Knocking application"
HOMEPAGE="https://www.cipherdyne.org/fwknop/ https://github.com/mrash/fwknop"
SRC_URI="https://github.com/mrash/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz"
LICENSE="GPL-2+"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="+client extras firewalld gdbm gpg +iptables nfqueue python +server udp-server"
DEPEND="
client? ( net-misc/wget[ssl] )
firewalld? ( net-firewall/firewalld[${PYTHON_SINGLE_USEDEP}] )
gdbm? ( sys-libs/gdbm )
gpg? (
app-crypt/gpgme
dev-libs/libassuan
dev-libs/libgpg-error
)
iptables? ( net-firewall/iptables )
nfqueue? ( net-libs/libnetfilter_queue )
python? ( ${PYTHON_DEPS} )
server? ( !nfqueue? ( !udp-server? ( net-libs/libpcap ) ) )
"
RDEPEND="${DEPEND}"
REQUIRED_USE="
nfqueue? ( server )
python? ( ${PYTHON_REQUIRED_USE} )
server? ( ^^ ( firewalld iptables ) )
udp-server? ( server )
"
DOCS=( AUTHORS ChangeLog README.md )
DISABLE_AUTOFORMATTING=1
DOC_CONTENTS="
Example configuration files were installed to '${EPREFIX}/etc/fwknopd/'.
Please edit them to suit your needs and then remove the .example suffix.
fwknopd supports several backends: firewalld, iptables, ipfw, pf, ipf.
You can set the desired backend via FIREWALL_EXE option in fwknopd.conf
instead of the default one chosen at compile time.
"
pkg_setup() {
linux-info_pkg_setup
python-single-r1_pkg_setup
}
src_prepare() {
default_src_prepare
# Install example configs with .example suffix.
if use server; then
sed -i -e 's|conf;|conf.example;|g' Makefile.am || die
fi
eautoreconf
}
src_configure() {
local myeconfargs=(
--localstatedir="${EPREFIX}/run"
$(use_enable client)
$(use_enable !gdbm file-cache)
$(use_enable nfqueue nfq-capture)
$(use_enable server)
$(use_enable udp-server)
$(use_with gpg gpgme)
)
use firewalld && myeconfargs+=(--with-firewalld="${EPREFIX}/usr/sbin/firewalld")
use iptables && myeconfargs+=(--with-iptables="${EPREFIX}/sbin/iptables")
econf "${myeconfargs[@]}"
}
src_compile() {
default_src_compile
if use python; then
cd python || die
distutils-r1_src_compile
fi
}
src_install() {
default_src_install
prune_libtool_files --modules
if use extras; then
dodoc extras/apparmor/usr.sbin.fwknopd
dodoc extras/console-qr/console-qr.sh
dodoc extras/fwknop-launcher/*
fi
if use server; then
newinitd "${FILESDIR}/fwknopd.init" fwknopd
newconfd "${FILESDIR}/fwknopd.confd" fwknopd
systemd_dounit extras/systemd/fwknopd.service
systemd_newtmpfilesd extras/systemd/fwknopd.tmpfiles.conf fwknopd.conf
readme.gentoo_create_doc
fi
if use python; then
# Redefine DOCS, otherwise distutils-r1 eclass interferes.
local DOCS=()
cd python || die
distutils-r1_src_install
fi
}
pkg_postinst() {
if use server; then
readme.gentoo_print_elog
if ! linux_config_exists || ! linux_chkconfig_present NETFILTER_XT_MATCH_COMMENT; then
echo
ewarn "fwknopd daemon relies on the 'comment' match in order to expire"
ewarn "created firewall rules, which is an important security feature."
ewarn "Please enable NETFILTER_XT_MATCH_COMMENT support in your kernel."
echo
fi
if use nfqueue && \
! linux_config_exists || ! linux_chkconfig_present NETFILTER_XT_TARGET_NFQUEUE; then
echo
ewarn "fwknopd daemon relies on the 'NFQUEUE' target for NFQUEUE mode."
ewarn "Please enable NETFILTER_XT_TARGET_NFQUEUE support in your kernel."
echo
fi
fi
}
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