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# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=6
inherit autotools linux-info systemd
DESCRIPTION="Linux kernel (3.13+) firewall, NAT and packet mangling tools"
HOMEPAGE="https://netfilter.org/projects/nftables/"
SRC_URI="https://git.netfilter.org/nftables/snapshot/v${PV}.tar.gz -> ${P}.tar.gz"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="amd64 arm ~arm64 ia64 x86"
IUSE="debug doc +gmp json +modern-kernel +readline"
RDEPEND=">=net-libs/libmnl-1.0.3:0=
gmp? ( dev-libs/gmp:0= )
json? ( dev-libs/jansson )
readline? ( sys-libs/readline:0= )
>=net-libs/libnftnl-1.1.1:0="
DEPEND="${RDEPEND}
>=app-text/docbook2X-0.8.8-r4
doc? ( >=app-text/dblatex-0.3.7 )
sys-devel/bison
sys-devel/flex
virtual/pkgconfig"
S="${WORKDIR}/v${PV}"
pkg_setup() {
if kernel_is ge 3 13; then
if use modern-kernel && kernel_is lt 3 18; then
eerror "The modern-kernel USE flag requires kernel version 3.18 or newer to work properly."
fi
CONFIG_CHECK="~NF_TABLES"
linux-info_pkg_setup
else
eerror "This package requires kernel version 3.13 or newer to work properly."
fi
}
src_prepare() {
default
eautoreconf
}
src_configure() {
local myeconfargs=(
--sbindir="${EPREFIX}"/sbin
$(use_enable debug)
$(use_enable doc pdf-doc)
$(use_with !gmp mini_gmp)
$(use_with json)
$(use_with readline cli)
)
econf "${myeconfargs[@]}"
}
src_install() {
default
local mksuffix=""
use modern-kernel && mksuffix="-mk"
exeinto /usr/libexec/${PN}
newexe "${FILESDIR}"/libexec/${PN}${mksuffix}.sh ${PN}.sh
newconfd "${FILESDIR}"/${PN}${mksuffix}.confd ${PN}
newinitd "${FILESDIR}"/${PN}${mksuffix}.init ${PN}
keepdir /var/lib/nftables
systemd_dounit "${FILESDIR}"/systemd/${PN}-restore.service
docinto /usr/share/doc/${PF}/skels
dodoc "${D}"/etc/nftables/*
rm -R "${D}"/etc/nftables
}
pkg_postinst() {
local save_file
save_file="${EROOT%/}/var/lib/nftables/rules-save"
# In order for the nftables-restore systemd service to start
# the save_file must exist.
if [[ ! -f "${save_file}" ]]; then
( umask 177; touch "${save_file}" )
elif [[ $(( "$( stat --printf '%05a' "${save_file}" )" & 07177 )) -ne 0 ]]; then
ewarn "Your system has dangerous permissions for ${save_file}"
ewarn "It is probably affected by bug #691326."
ewarn "You may need to fix the permissions of the file. To do so,"
ewarn "you can run the command in the line below as root."
ewarn " 'chmod 600 \"${save_file}\"'"
fi
elog "If you wish to enable the firewall rules on boot (on systemd) you"
elog "will need to enable the nftables-restore service."
elog " 'systemd_enable_service basic.target ${PN}-restore.service'"
elog
elog "If you are creating firewall rules before the next system restart "
elog "the nftables-restore service must be manually started in order to "
elog "save those rules on shutdown."
}
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