90 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
			
		
		
	
	
			90 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
# Copyright 1999-2012 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: $
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EAPI="8"
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inherit linux-info
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DESCRIPTION="GNU Virtual Private Ethernet"
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HOMEPAGE="https://savannah.gnu.org/projects/gvpe"
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SRC_URI="https://ftp.gnu.org/gnu/${PN}/${P}.tar.gz"
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LICENSE="GPL-2"
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SLOT="0"
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KEYWORDS="~amd64 ~x86"
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IUSE="nls tcp +compression dns icmp http-proxy
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	cipher-aes-128 cipher-aes-192 +cipher-aes-256 cipher-blowfish
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	+digset-sha512 digset-sha256 digset-sha1 digset-ripemd160 digset-md5 digset-md4-insecure"
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DEPEND="dev-libs/libev
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	>=dev-libs/openssl-0.9.7c
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	nls? ( sys-devel/gettext )
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	virtual/linux-sources"
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RDEPEND=">=dev-libs/openssl-0.9.7c"
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src_compile() {
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	#Since gvpe does not support more than 1 cipher and more then 1 digset
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	#here we do some not so clever checks to ensure that only one is selected
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	local myEnc
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	local encCnt=0
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	use cipher-aes-256 && myEnc="aes-256" && encCnt=$((encCnt+1))
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	use cipher-aes-192 && myEnc="aes-192" && encCnt=$((encCnt+1))
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	use cipher-aes-128 && myEnc="aes-128" && encCnt=$((encCnt+1))
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	use cipher-blowfish && myEnc="bf" && encCnt=$((encCnt+1))
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	if [[ $encCnt<1 ]]; then
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	    eerror "An encryption alogotithm have to be selected.\nAdd one of cipher-aes-256, cipher-aes-192, cipher-aes-128 or cipher-blowfish to your USE variable."
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	    die;
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	elif [[ $encCnt>1 ]]; then
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	    eerror "More then one ecryption alogorithm selected.\nRemove all but one of cipher-aes-256, cipher-aes-192, cipher-aes-128 or cipher-blowfish flags from your USE variable."
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	    die;
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	fi
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	encCnt=0
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	local myDigset
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	use digset-sha512 && myDigset="sha512" && encCnt=$((encCnt+1))
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	use digset-sha256 && myDigset="sha256" && encCnt=$((encCnt+1))
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	use digset-sha1 && myDigset="sha1" && encCnt=$((encCnt+1))
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	use digset-ripemd160 && myDigset="ripemd160" && encCnt=$((encCnt+1))
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	use digset-md5 && myDigset="md5" && encCnt=$((encCnt+1))
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	use digset-md4-insecure && myDigset="md4" && encCnt=$((encCnt+1))
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	if [[ $encCnt<1 ]]; then
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	    eerror "A digset algorithm have to be selected.\nAdd one of digset-sha512, digset-sha256, digset-sha1, digset-ripemd160, digset-md5 or digset-md4-insecure to your USE variable."
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	    die;
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	elif [[ $encCnt>1 ]]; then
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	    eerror "More then one digset alogorithm selected.\nRemove all but one of digset-sha512, digset-sha256, digset-sha1, digset-ripemd160, digset-md5 or digset-md4-insecure flags from your USE variable."
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	    die;
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	fi
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	#the hmac and rand flags are hardcoded this is not so good because
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	#it leaves the system more predictable. But I don't think that adding
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	#24 more use flags is a good idea too.
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	econf $(use_enable nls) \
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		$(use_enable compression) \
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		$(use_enable dns) \
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		$(use_enable icmp) \
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		$(use_enable http-proxy) \
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		$(use_enable tcp) \
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	    --enable-hmac-length=16 --enable-rsa-length=4096 --enable-cipher=$myEnc \
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	    --enable-hmac-digest=$myDigset --enable-auth-digest=$myDigset
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	emake || die
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}
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src_install() {
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	emake DESTDIR="${D}" install || die
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	dodoc AUTHORS NEWS README TODO || die
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	newinitd "${FILESDIR}/gvpe.rc" gvpe || die
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	newconfd "${FILESDIR}/gvpe.confd" gvpe || die
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	insinto /etc/gvpe
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	doins "${FILESDIR}/gvpe.conf.example" || die
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	exeinto /etc/gvpe
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	doexe "${FILESDIR}/if-up" || die
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}
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pkg_postinst() {
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	linux_chkconfig_present TUN || ewarn "This package requires the tun/tap kernel device."
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	einfo "Edit /etc/conf.d/gvpe and /etc/gvpe/gvpe.conf"
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	ewarn "All nodes in your VPN have to use the same combination of digset and cipher!"
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}
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