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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
PYTHON_COMPAT=( python3_{7,8,9} )
inherit autotools linux-info python-r1 systemd
DESCRIPTION="Linux kernel (3.13+) firewall, NAT and packet mangling tools"
HOMEPAGE="https://netfilter.org/projects/nftables/"
SRC_URI="https://netfilter.org/projects/nftables/files/${P}.tar.bz2"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~arm ~arm64 ~ia64 ~ppc64 sparc ~x86"
IUSE="debug doc +gmp json +modern-kernel python +readline static-libs xtables"
RDEPEND="
>=net-libs/libmnl-1.0.4:0=
gmp? ( dev-libs/gmp:0= )
json? ( dev-libs/jansson )
python? ( ${PYTHON_DEPS} )
readline? ( sys-libs/readline:0= )
>=net-libs/libnftnl-1.1.7:0=
xtables? ( >=net-firewall/iptables-1.6.1 )
"
DEPEND="${RDEPEND}"
BDEPEND="
doc? (
app-text/asciidoc
>=app-text/docbook2X-0.8.8-r4
)
virtual/pkgconfig
"
REQUIRED_USE="
python? ( ${PYTHON_REQUIRED_USE} )
"
python_make() {
emake \
-C py \
abs_builddir="${S}" \
DESTDIR="${D}" \
PYTHON_BIN="${PYTHON}" \
"${@}"
}
pkg_setup() {
if kernel_is ge 3 13; then
if use modern-kernel && kernel_is lt 3 18; then
eerror "The modern-kernel USE flag requires kernel version 3.18 or newer to work properly."
fi
CONFIG_CHECK="~NF_TABLES"
linux-info_pkg_setup
else
eerror "This package requires kernel version 3.13 or newer to work properly."
fi
}
src_prepare() {
default
# fix installation path for doc stuff
sed '/^pkgsysconfdir/s@${sysconfdir}.*$@${docdir}/skels@' \
-i files/nftables/Makefile.am || die
sed '/^pkgsysconfdir/s@${sysconfdir}.*$@${docdir}/skels/osf@' \
-i files/osf/Makefile.am || die
eautoreconf
}
src_configure() {
local myeconfargs=(
# We handle python separately
--disable-python
--sbindir="${EPREFIX}"/sbin
$(use_enable debug)
$(use_enable doc man-doc)
$(use_with !gmp mini_gmp)
$(use_with json)
$(use_with readline cli readline)
$(use_enable static-libs static)
$(use_with xtables)
)
econf "${myeconfargs[@]}"
}
src_compile() {
default
if use python; then
python_foreach_impl python_make
fi
}
src_install() {
default
if ! use doc; then
pushd doc >/dev/null || die
doman *.?
popd >/dev/null || die
fi
local mksuffix="$(usex modern-kernel '-mk' '')"
exeinto /usr/libexec/${PN}
newexe "${FILESDIR}"/libexec/${PN}${mksuffix}.sh ${PN}.sh
newconfd "${FILESDIR}"/${PN}${mksuffix}.confd ${PN}
newinitd "${FILESDIR}"/${PN}${mksuffix}.init-r1 ${PN}
keepdir /var/lib/nftables
systemd_dounit "${FILESDIR}"/systemd/${PN}-restore.service
if use python ; then
python_foreach_impl python_make install
python_foreach_impl python_optimize
fi
find "${ED}" -type f -name "*.la" -delete || die
}
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
if has_version 'sys-apps/systemd'; then
elog "If you wish to enable the firewall rules on boot (on systemd) you"
elog "will need to enable the nftables-restore service."
elog " 'systemctl enable ${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."
fi
if has_version 'sys-apps/openrc'; then
elog "If you wish to enable the firewall rules on boot (on openrc) you"
elog "will need to enable the nftables service."
elog " 'rc-update add ${PN} default'"
elog
elog "If you are creating or updating the firewall rules and wish to save"
elog "them to be loaded on the next restart, use the \"save\" functionality"
elog "in the init script."
elog " 'rc-service ${PN} save'"
fi
}
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