177 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
			
		
		
	
	
			177 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
# Copyright 1999-2022 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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inherit systemd toolchain-funcs autotools flag-o-matic usr-ldscript git-r3
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DESCRIPTION="Linux kernel (2.4+) firewall, NAT and packet mangling tools"
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HOMEPAGE="https://www.netfilter.org/projects/iptables/"
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EGIT_REPO_URI="git://git.netfilter.org/iptables.git"
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LICENSE="GPL-2"
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# Subslot reflects PV when libxtables and/or libip*tc was changed
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# the last time.
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SLOT="0/1.8.3"
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KEYWORDS=""
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IUSE="conntrack netlink nftables pcap static-libs"
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COMMON_DEPEND="
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	conntrack? ( >=net-libs/libnetfilter_conntrack-1.0.6 )
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	netlink? ( net-libs/libnfnetlink )
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	nftables? (
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		>=net-libs/libmnl-1.0:=
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		>=net-libs/libnftnl-1.1.6:=
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	)
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	pcap? ( net-libs/libpcap )
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"
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DEPEND="
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	${COMMON_DEPEND}
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	virtual/os-headers
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	>=sys-kernel/linux-headers-4.4:0
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"
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BDEPEND="
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	virtual/pkgconfig
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	nftables? (
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		sys-devel/flex
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		virtual/yacc
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	)
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"
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RDEPEND="
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	${COMMON_DEPEND}
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	nftables? ( net-misc/ethertypes )
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	!<net-firewall/ebtables-2.0.11-r1
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	!<net-firewall/arptables-0.0.5-r1
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"
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IDEPEND=">=app-eselect/eselect-iptables-20220320"
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PATCHES=(
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	"${FILESDIR}/iptables-1.8.4-no-symlinks.patch"
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	"${FILESDIR}/iptables-1.8.2-link.patch"
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)
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src_prepare() {
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	# Use the saner headers from the kernel
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	rm include/linux/{kernel,types}.h || die
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	default
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	eautoreconf
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}
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src_configure() {
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	# Some libs use $(AR) rather than libtool to build, bug #444282
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	tc-export AR
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	# Hack around struct mismatches between userland & kernel for some ABIs
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	# bug #472388
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	use amd64 && [[ ${ABI} == "x32" ]] && append-flags -fpack-struct
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	sed -i \
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		-e "/nfnetlink=[01]/s:=[01]:=$(usex netlink 1 0):" \
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		-e "/nfconntrack=[01]/s:=[01]:=$(usex conntrack 1 0):" \
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		configure || die
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	local myeconfargs=(
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		--sbindir="${EPREFIX}/sbin"
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		--libexecdir="${EPREFIX}/$(get_libdir)"
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		--enable-devel
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		--enable-ipv6
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		--enable-shared
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		$(use_enable nftables)
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		$(use_enable pcap bpf-compiler)
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		$(use_enable pcap nfsynproxy)
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		$(use_enable static-libs static)
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	)
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	econf "${myeconfargs[@]}"
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}
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src_compile() {
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	emake V=1
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}
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src_install() {
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	default
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	dodoc INCOMPATIBILITIES iptables/iptables.xslt
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	# All the iptables binaries are in /sbin, so might as well
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	# put these small files in with them
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	into /
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	dosbin iptables/iptables-apply
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	dosym iptables-apply /sbin/ip6tables-apply
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	doman iptables/iptables-apply.8
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	insinto /usr/include
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	doins include/ip{,6}tables.h
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	insinto /usr/include/iptables
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	doins include/iptables/internal.h
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	keepdir /var/lib/ip{,6}tables
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	newinitd "${FILESDIR}"/${PN}-r3.init iptables
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	newconfd "${FILESDIR}"/${PN}-r1.confd iptables
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	dosym iptables /etc/init.d/ip6tables
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	newconfd "${FILESDIR}"/ip6tables-r1.confd ip6tables
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	if use nftables; then
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		# Bug #647458
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		rm "${ED}"/etc/ethertypes || die
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		# Bugs #660886 and #669894
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		rm "${ED}"/sbin/{arptables,ebtables}{,-{save,restore}} || die
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	fi
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	systemd_dounit "${FILESDIR}"/systemd/ip{,6}tables-{re,}store.service
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	# Move important libs to /lib, bug #332175
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	gen_usr_ldscript -a ip{4,6}tc xtables
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	find "${ED}" -type f -name "*.la" -delete || die
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}
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pkg_postinst() {
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	local default_iptables="xtables-legacy-multi"
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	if ! eselect iptables show &>/dev/null; then
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		elog "Current iptables implementation is unset, setting to ${default_iptables}"
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		eselect iptables set "${default_iptables}"
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	fi
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	if use nftables; then
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		local tables
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		for tables in {arp,eb}tables; do
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			if ! eselect ${tables} show &>/dev/null; then
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				elog "Current ${tables} implementation is unset, setting to ${default_iptables}"
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				eselect ${tables} set xtables-nft-multi
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			fi
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		done
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	fi
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	eselect iptables show
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}
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pkg_prerm() {
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	if [[ -z ${REPLACED_BY_VERSION} ]]; then
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		elog "Unsetting iptables symlinks before removal"
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		eselect iptables unset
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	fi
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	if ! has_version 'net-firewall/ebtables'; then
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		elog "Unsetting ebtables symlinks before removal"
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		eselect ebtables unset
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	elif [[ -z ${REPLACED_BY_VERSION} ]]; then
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		elog "Resetting ebtables symlinks to ebtables-legacy"
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		eselect ebtables set ebtables-legacy
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	fi
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	if ! has_version 'net-firewall/arptables'; then
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		elog "Unsetting arptables symlinks before removal"
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		eselect arptables unset
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	elif [[ -z ${REPLACED_BY_VERSION} ]]; then
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		elog "Resetting arptables symlinks to arptables-legacy"
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		eselect arptables set arptables-legacy
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	fi
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	# The eselect module failing should not be fatal
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	return 0
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}
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