| # Copyright 1999-2017 Gentoo Foundation |
| # Distributed under the terms of the GNU General Public License v2 |
| |
| EAPI=5 |
| inherit eutils linux-info systemd user flag-o-matic |
| |
| DESCRIPTION="IPsec-based VPN solution focused on security and ease of use, supporting IKEv1/IKEv2 and MOBIKE" |
| HOMEPAGE="http://www.strongswan.org/" |
| SRC_URI="http://download.strongswan.org/${P}.tar.bz2" |
| |
| LICENSE="GPL-2 RSA DES" |
| SLOT="0" |
| KEYWORDS="*" |
| IUSE="+caps curl +constraints debug dhcp eap farp gcrypt +gmp ldap mysql networkmanager +non-root +openssl selinux sqlite pam pkcs11" |
| |
| STRONGSWAN_PLUGINS_STD="led lookip systime-fix unity vici" |
| STRONGSWAN_PLUGINS_OPT="blowfish ccm ctr gcm ha ipseckey ntru padlock rdrand unbound whitelist" |
| for mod in $STRONGSWAN_PLUGINS_STD; do |
| IUSE="${IUSE} +strongswan_plugins_${mod}" |
| done |
| |
| for mod in $STRONGSWAN_PLUGINS_OPT; do |
| IUSE="${IUSE} strongswan_plugins_${mod}" |
| done |
| |
| COMMON_DEPEND="!net-misc/openswan |
| !net-misc/strongswan |
| gmp? ( >=dev-libs/gmp-4.1.5:= ) |
| gcrypt? ( dev-libs/libgcrypt:0 ) |
| caps? ( sys-libs/libcap ) |
| curl? ( net-misc/curl ) |
| ldap? ( net-nds/openldap ) |
| openssl? ( >=dev-libs/openssl-0.9.8:=[-bindist] ) |
| mysql? ( virtual/mysql ) |
| sqlite? ( >=dev-db/sqlite-3.3.1 ) |
| networkmanager? ( net-misc/networkmanager ) |
| pam? ( sys-libs/pam ) |
| strongswan_plugins_unbound? ( net-dns/unbound net-libs/ldns )" |
| DEPEND="${COMMON_DEPEND} |
| virtual/linux-sources |
| sys-kernel/linux-headers" |
| RDEPEND="${COMMON_DEPEND} |
| virtual/logger |
| sys-apps/iproute2 |
| !net-vpn/libreswan |
| selinux? ( sec-policy/selinux-ipsec )" |
| |
| UGID="ipsec" |
| |
| pkg_setup() { |
| linux-info_pkg_setup |
| elog "Linux kernel version: ${KV_FULL}" |
| |
| if ! kernel_is -ge 2 6 16; then |
| eerror |
| eerror "This ebuild currently only supports ${PN} with the" |
| eerror "native Linux 2.6 IPsec stack on kernels >= 2.6.16." |
| eerror |
| fi |
| |
| if kernel_is -lt 2 6 34; then |
| ewarn |
| ewarn "IMPORTANT KERNEL NOTES: Please read carefully..." |
| ewarn |
| |
| if kernel_is -lt 2 6 29; then |
| ewarn "[ < 2.6.29 ] Due to a missing kernel feature, you have to" |
| ewarn "include all required IPv6 modules even if you just intend" |
| ewarn "to run on IPv4 only." |
| ewarn |
| ewarn "This has been fixed with kernels >= 2.6.29." |
| ewarn |
| fi |
| |
| if kernel_is -lt 2 6 33; then |
| ewarn "[ < 2.6.33 ] Kernels prior to 2.6.33 include a non-standards" |
| ewarn "compliant implementation for SHA-2 HMAC support in ESP and" |
| ewarn "miss SHA384 and SHA512 HMAC support altogether." |
| ewarn |
| ewarn "If you need any of those features, please use kernel >= 2.6.33." |
| ewarn |
| fi |
| |
| if kernel_is -lt 2 6 34; then |
| ewarn "[ < 2.6.34 ] Support for the AES-GMAC authentification-only" |
| ewarn "ESP cipher is only included in kernels >= 2.6.34." |
| ewarn |
| ewarn "If you need it, please use kernel >= 2.6.34." |
| ewarn |
| fi |
| fi |
| |
| if use non-root; then |
| enewgroup ${UGID} |
| enewuser ${UGID} -1 -1 -1 ${UGID} |
| fi |
| } |
| |
| src_prepare() { |
| epatch "${FILESDIR}/${P}-fix-cve-2017-11185.patch" |
| epatch "${FILESDIR}/${P}-fix-cve-2018-10811.patch" |
| epatch "${FILESDIR}/${P}-start-non-root.patch" |
| epatch "${FILESDIR}/${P}-stdint.patch" |
| epatch "${FILESDIR}/${P}-stroke-Ensure-a-minimum-message-length.patch" |
| epatch "${FILESDIR}/${P}-gmp-pkcs1-verify.patch" |
| epatch "${FILESDIR}/${P}-gmp-pkcs1-overflow.patch" |
| epatch_user |
| } |
| |
| src_configure() { |
| append-flags "-DSTARTER_ALLOW_NON_ROOT" "-DSKIP_KERNEL_IPSEC_MODPROBES" |
| |
| if use non-root; then |
| myconf="${myconf} --with-user=${UGID} --with-group=${UGID}" |
| myconf="${myconf} --with-piddir=/run/ipsec" |
| fi |
| |
| # If a user has already enabled db support, those plugins will |
| # most likely be desired as well. Besides they don't impose new |
| # dependencies and come at no cost (except for space). |
| if use mysql || use sqlite; then |
| myconf="${myconf} --enable-attr-sql --enable-sql" |
| fi |
| |
| # strongSwan builds and installs static libs by default which are |
| # useless to the user (and to strongSwan for that matter) because no |
| # header files or alike get installed... so disabling them is safe. |
| if use pam && use eap; then |
| myconf="${myconf} --enable-eap-gtc" |
| else |
| myconf="${myconf} --disable-eap-gtc" |
| fi |
| |
| for mod in $STRONGSWAN_PLUGINS_STD; do |
| if use strongswan_plugins_${mod}; then |
| myconf+=" --enable-${mod}" |
| fi |
| done |
| |
| for mod in $STRONGSWAN_PLUGINS_OPT; do |
| if use strongswan_plugins_${mod}; then |
| myconf+=" --enable-${mod}" |
| fi |
| done |
| |
| econf \ |
| --disable-static \ |
| --enable-ikev1 \ |
| --enable-ikev2 \ |
| --enable-swanctl \ |
| --enable-socket-dynamic \ |
| $(use_with caps capabilities libcap) \ |
| $(use_enable curl) \ |
| $(use_enable constraints) \ |
| $(use_enable ldap) \ |
| $(use_enable debug leak-detective) \ |
| $(use_enable dhcp) \ |
| $(use_enable eap eap-sim) \ |
| $(use_enable eap eap-sim-file) \ |
| $(use_enable eap eap-simaka-sql) \ |
| $(use_enable eap eap-simaka-pseudonym) \ |
| $(use_enable eap eap-simaka-reauth) \ |
| $(use_enable eap eap-identity) \ |
| $(use_enable eap eap-md5) \ |
| $(use_enable eap eap-aka) \ |
| $(use_enable eap eap-aka-3gpp2) \ |
| $(use_enable eap md4) \ |
| $(use_enable eap eap-mschapv2) \ |
| $(use_enable eap eap-radius) \ |
| $(use_enable eap eap-tls) \ |
| $(use_enable eap xauth-eap) \ |
| $(use_enable farp) \ |
| $(use_enable gmp) \ |
| $(use_enable gcrypt) \ |
| $(use_enable mysql) \ |
| $(use_enable networkmanager nm) \ |
| $(use_enable openssl) \ |
| $(use_enable pam xauth-pam) \ |
| $(use_enable pkcs11) \ |
| $(use_enable sqlite) \ |
| "$(systemd_with_unitdir)" \ |
| ${myconf} |
| } |
| |
| src_install() { |
| emake DESTDIR="${D}" install |
| |
| doinitd "${FILESDIR}"/ipsec |
| |
| local dir_ugid |
| if use non-root; then |
| fowners ${UGID}:${UGID} \ |
| /etc/ipsec.conf \ |
| /etc/strongswan.conf |
| |
| dir_ugid="${UGID}" |
| else |
| dir_ugid="root" |
| fi |
| |
| diropts -m 0750 -o ${dir_ugid} -g ${dir_ugid} |
| dodir /etc/ipsec.d \ |
| /etc/ipsec.d/aacerts \ |
| /etc/ipsec.d/acerts \ |
| /etc/ipsec.d/cacerts \ |
| /etc/ipsec.d/certs \ |
| /etc/ipsec.d/crls \ |
| /etc/ipsec.d/ocspcerts \ |
| /etc/ipsec.d/private \ |
| /etc/ipsec.d/reqs |
| |
| # Replace various IPsec files with symbolic links to runtime generated |
| # files (by l2tpipsec_vpn) in /run on Chromium OS. |
| local link_path=/run/l2tpipsec_vpn/current |
| for cfg_file in \ |
| /etc/ipsec.conf \ |
| /etc/ipsec.secrets \ |
| /etc/ipsec.d/cacerts/cacert.der \ |
| /etc/strongswan.conf; do |
| rm -f "${D}${cfg_file}" |
| dosym "${link_path}/$(basename $cfg_file)" "${cfg_file}" |
| done |
| |
| dodoc NEWS README TODO || die |
| |
| # shared libs are used only internally and there are no static libs, |
| # so it's safe to get rid of the .la files |
| find "${D}" -name '*.la' -delete || die "Failed to remove .la files." |
| } |
| |
| pkg_preinst() { |
| has_version "<net-vpn/strongswan-4.3.6-r1" |
| upgrade_from_leq_4_3_6=$(( !$? )) |
| |
| has_version "<net-vpn/strongswan-4.3.6-r1[-caps]" |
| previous_4_3_6_with_caps=$(( !$? )) |
| } |
| |
| pkg_postinst() { |
| if ! use openssl && ! use gcrypt; then |
| elog |
| elog "${PN} has been compiled without both OpenSSL and libgcrypt support." |
| elog "Please note that this might effect availability and speed of some" |
| elog "cryptographic features. You are advised to enable the OpenSSL plugin." |
| elif ! use openssl; then |
| elog |
| elog "${PN} has been compiled without the OpenSSL plugin. This might effect" |
| elog "availability and speed of some cryptographic features. There will be" |
| elog "no support for Elliptic Curve Cryptography (Diffie-Hellman groups 19-21," |
| elog "25, 26) and ECDSA." |
| fi |
| |
| if [[ $upgrade_from_leq_4_3_6 == 1 ]]; then |
| chmod 0750 "${ROOT}"/etc/ipsec.d \ |
| "${ROOT}"/etc/ipsec.d/aacerts \ |
| "${ROOT}"/etc/ipsec.d/acerts \ |
| "${ROOT}"/etc/ipsec.d/cacerts \ |
| "${ROOT}"/etc/ipsec.d/certs \ |
| "${ROOT}"/etc/ipsec.d/crls \ |
| "${ROOT}"/etc/ipsec.d/ocspcerts \ |
| "${ROOT}"/etc/ipsec.d/private \ |
| "${ROOT}"/etc/ipsec.d/reqs |
| |
| ewarn |
| ewarn "The default permissions for /etc/ipsec.d/* have been tightened for" |
| ewarn "security reasons. Your system installed directories have been" |
| ewarn "updated accordingly. Please check if necessary." |
| ewarn |
| |
| if [[ $previous_4_3_6_with_caps == 1 ]]; then |
| if ! use non-root; then |
| ewarn |
| ewarn "IMPORTANT: You previously had ${PN} installed without root" |
| ewarn "privileges because it was implied by the 'caps' USE flag." |
| ewarn "This has been changed. If you want ${PN} with user privileges," |
| ewarn "you have to re-emerge it with the 'non-root' USE flag enabled." |
| ewarn |
| fi |
| fi |
| fi |
| if ! use caps && ! use non-root; then |
| ewarn |
| ewarn "You have decided to run ${PN} with root privileges and built it" |
| ewarn "without support for POSIX capability dropping. It is generally" |
| ewarn "strongly suggested that you reconsider- especially if you intend" |
| ewarn "to run ${PN} as server with a public ip address." |
| ewarn |
| ewarn "You should re-emerge ${PN} with at least the 'caps' USE flag enabled." |
| ewarn |
| fi |
| if use non-root; then |
| elog |
| elog "${PN} has been installed without superuser privileges (USE=non-root)." |
| elog "This imposes several limitations mainly to the IKEv1 daemon 'pluto'" |
| elog "but also a few to the IKEv2 daemon 'charon'." |
| elog |
| elog "Please carefully read: http://wiki.strongswan.org/wiki/nonRoot" |
| elog |
| elog "pluto uses a helper script by default to insert/remove routing and" |
| elog "policy rules upon connection start/stop which requires superuser" |
| elog "privileges. charon in contrast does this internally and can do so" |
| elog "even with reduced (user) privileges." |
| elog |
| elog "Thus if you require IKEv1 (pluto) or need to specify a custom updown" |
| elog "script to pluto or charon which requires superuser privileges, you" |
| elog "can work around this limitation by using sudo to grant the" |
| elog "user \"ipsec\" the appropriate rights." |
| elog "For example (the default case):" |
| elog "/etc/sudoers:" |
| elog " ipsec ALL=(ALL) NOPASSWD: SETENV: /usr/sbin/ipsec" |
| elog "Under the specific connection block in /etc/ipsec.conf:" |
| elog " leftupdown=\"sudo -E ipsec _updown iptables\"" |
| elog |
| fi |
| elog |
| elog "Make sure you have _all_ required kernel modules available including" |
| elog "the appropriate cryptographic algorithms. A list is available at:" |
| elog " http://wiki.strongswan.org/projects/strongswan/wiki/KernelModules" |
| elog |
| elog "The up-to-date manual is available online at:" |
| elog " http://wiki.strongswan.org/" |
| elog |
| } |