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319 lines
9.3 KiB
319 lines
9.3 KiB
# Copyright 1999-2024 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 linux-info systemd
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DESCRIPTION="IPsec-based VPN solution, supporting IKEv1/IKEv2 and MOBIKE"
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HOMEPAGE="https://www.strongswan.org/"
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SRC_URI="https://download.strongswan.org/${P}.tar.bz2"
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LICENSE="GPL-2 RSA DES"
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SLOT="0"
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KEYWORDS="amd64 arm ~arm64 ~ppc ~ppc64 ~riscv x86"
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IUSE="+caps curl +constraints debug dhcp eap farp gcrypt +gmp ldap mysql networkmanager +non-root +openssl selinux sqlite systemd pam pkcs11"
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STRONGSWAN_PLUGINS_STD="gcm led lookip systime-fix unity vici"
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STRONGSWAN_PLUGINS_OPT_DISABLE="kdf"
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STRONGSWAN_PLUGINS_OPT="addrblock aesni blowfish bypass-lan ccm chapoly ctr error-notify forecast
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ha ipseckey newhope ntru padlock rdrand save-keys unbound whitelist
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xauth-noauth"
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for mod in $STRONGSWAN_PLUGINS_STD; do
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IUSE="${IUSE} +strongswan_plugins_${mod}"
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done
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for mod in $STRONGSWAN_PLUGINS_OPT_DISABLE; do
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IUSE="${IUSE} strongswan_plugins_${mod}"
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done
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for mod in $STRONGSWAN_PLUGINS_OPT; do
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IUSE="${IUSE} strongswan_plugins_${mod}"
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done
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COMMON_DEPEND="non-root? (
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acct-user/ipsec
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acct-group/ipsec
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)
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dev-libs/glib:2
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gmp? ( >=dev-libs/gmp-4.1.5:= )
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gcrypt? ( dev-libs/libgcrypt:= )
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caps? ( sys-libs/libcap )
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curl? ( net-misc/curl )
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ldap? ( net-nds/openldap:= )
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openssl? ( >=dev-libs/openssl-0.9.8:=[-bindist(-)] )
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mysql? ( dev-db/mysql-connector-c:= )
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sqlite? ( >=dev-db/sqlite-3.3.1:3 )
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systemd? ( sys-apps/systemd )
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networkmanager? ( net-misc/networkmanager )
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pam? ( sys-libs/pam )
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strongswan_plugins_unbound? ( net-dns/unbound:= net-libs/ldns:= )"
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DEPEND="${COMMON_DEPEND}
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virtual/linux-sources
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sys-kernel/linux-headers"
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RDEPEND="${COMMON_DEPEND}
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virtual/logger
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sys-apps/iproute2
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!net-vpn/libreswan
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selinux? ( sec-policy/selinux-ipsec )"
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UGID="ipsec"
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pkg_setup() {
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linux-info_pkg_setup
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elog "Linux kernel version: ${KV_FULL}"
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if ! kernel_is -ge 2 6 16; then
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eerror
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eerror "This ebuild currently only supports ${PN} with the"
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eerror "native Linux 2.6 IPsec stack on kernels >= 2.6.16."
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eerror
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fi
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if kernel_is -lt 2 6 34; then
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ewarn
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ewarn "IMPORTANT KERNEL NOTES: Please read carefully..."
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ewarn
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if kernel_is -lt 2 6 29; then
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ewarn "[ < 2.6.29 ] Due to a missing kernel feature, you have to"
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ewarn "include all required IPv6 modules even if you just intend"
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ewarn "to run on IPv4 only."
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ewarn
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ewarn "This has been fixed with kernels >= 2.6.29."
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ewarn
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fi
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if kernel_is -lt 2 6 33; then
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ewarn "[ < 2.6.33 ] Kernels prior to 2.6.33 include a non-standards"
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ewarn "compliant implementation for SHA-2 HMAC support in ESP and"
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ewarn "miss SHA384 and SHA512 HMAC support altogether."
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ewarn
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ewarn "If you need any of those features, please use kernel >= 2.6.33."
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ewarn
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fi
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if kernel_is -lt 2 6 34; then
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ewarn "[ < 2.6.34 ] Support for the AES-GMAC authentification-only"
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ewarn "ESP cipher is only included in kernels >= 2.6.34."
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ewarn
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ewarn "If you need it, please use kernel >= 2.6.34."
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ewarn
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fi
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fi
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}
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src_configure() {
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local myconf=""
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if use non-root; then
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myconf="${myconf} --with-user=${UGID} --with-group=${UGID}"
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fi
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# If a user has already enabled db support, those plugins will
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# most likely be desired as well. Besides they don't impose new
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# dependencies and come at no cost (except for space).
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if use mysql || use sqlite; then
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myconf="${myconf} --enable-attr-sql --enable-sql"
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fi
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# strongSwan builds and installs static libs by default which are
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# useless to the user (and to strongSwan for that matter) because no
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# header files or alike get installed... so disabling them is safe.
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if use pam && use eap; then
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myconf="${myconf} --enable-eap-gtc"
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else
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myconf="${myconf} --disable-eap-gtc"
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fi
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for mod in $STRONGSWAN_PLUGINS_STD; do
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if use strongswan_plugins_${mod}; then
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myconf+=" --enable-${mod}"
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fi
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done
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for mod in $STRONGSWAN_PLUGINS_OPT_DISABLE; do
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if ! use strongswan_plugins_${mod}; then
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myconf+=" --disable-${mod}"
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fi
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done
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for mod in $STRONGSWAN_PLUGINS_OPT; do
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if use strongswan_plugins_${mod}; then
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myconf+=" --enable-${mod}"
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fi
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done
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econf \
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--disable-static \
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--enable-ikev1 \
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--enable-ikev2 \
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--enable-swanctl \
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--enable-socket-dynamic \
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--enable-cmd \
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$(use_enable curl) \
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$(use_enable constraints) \
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$(use_enable ldap) \
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$(use_enable debug leak-detective) \
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$(use_enable dhcp) \
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$(use_enable eap eap-sim) \
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$(use_enable eap eap-sim-file) \
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$(use_enable eap eap-simaka-sql) \
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$(use_enable eap eap-simaka-pseudonym) \
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$(use_enable eap eap-simaka-reauth) \
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$(use_enable eap eap-identity) \
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$(use_enable eap eap-md5) \
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$(use_enable eap eap-aka) \
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$(use_enable eap eap-aka-3gpp2) \
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$(use_enable eap md4) \
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$(use_enable eap eap-mschapv2) \
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$(use_enable eap eap-radius) \
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$(use_enable eap eap-tls) \
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$(use_enable eap eap-ttls) \
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$(use_enable eap xauth-eap) \
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$(use_enable eap eap-dynamic) \
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$(use_enable farp) \
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$(use_enable gmp) \
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$(use_enable gcrypt) \
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$(use_enable mysql) \
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$(use_enable networkmanager nm) \
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$(use_enable openssl) \
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$(use_enable pam xauth-pam) \
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$(use_enable pkcs11) \
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$(use_enable sqlite) \
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$(use_enable systemd) \
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$(use_with caps capabilities libcap) \
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--with-piddir=/run \
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--with-systemdsystemunitdir="$(systemd_get_systemunitdir)" \
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${myconf}
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}
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src_install() {
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emake DESTDIR="${D}" install
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if ! use systemd; then
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rm -rf "${ED}"/lib/systemd || die "Failed removing systemd lib."
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fi
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doinitd "${FILESDIR}"/ipsec
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local dir_ugid
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if use non-root; then
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fowners ${UGID}:${UGID} \
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/etc/ipsec.conf \
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/etc/strongswan.conf
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dir_ugid="${UGID}"
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else
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dir_ugid="root"
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fi
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diropts -m 0750 -o ${dir_ugid} -g ${dir_ugid}
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dodir /etc/ipsec.d \
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/etc/ipsec.d/aacerts \
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/etc/ipsec.d/acerts \
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/etc/ipsec.d/cacerts \
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/etc/ipsec.d/certs \
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/etc/ipsec.d/crls \
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/etc/ipsec.d/ocspcerts \
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/etc/ipsec.d/private \
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/etc/ipsec.d/reqs
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dodoc NEWS README TODO
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# shared libs are used only internally and there are no static libs,
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# so it's safe to get rid of the .la files
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find "${D}" -name '*.la' -delete || die "Failed to remove .la files."
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}
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pkg_preinst() {
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has_version "<net-vpn/strongswan-4.3.6-r1"
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upgrade_from_leq_4_3_6=$(( !$? ))
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has_version "<net-vpn/strongswan-4.3.6-r1[-caps]"
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previous_4_3_6_with_caps=$(( !$? ))
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}
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pkg_postinst() {
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if ! use openssl && ! use gcrypt; then
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elog
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elog "${PN} has been compiled without both OpenSSL and libgcrypt support."
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elog "Please note that this might effect availability and speed of some"
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elog "cryptographic features. You are advised to enable the OpenSSL plugin."
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elif ! use openssl; then
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elog
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elog "${PN} has been compiled without the OpenSSL plugin. This might effect"
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elog "availability and speed of some cryptographic features. There will be"
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elog "no support for Elliptic Curve Cryptography (Diffie-Hellman groups 19-21,"
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elog "25, 26) and ECDSA."
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fi
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if [[ $upgrade_from_leq_4_3_6 == 1 ]]; then
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chmod 0750 "${ROOT}"/etc/ipsec.d \
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"${ROOT}"/etc/ipsec.d/aacerts \
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"${ROOT}"/etc/ipsec.d/acerts \
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"${ROOT}"/etc/ipsec.d/cacerts \
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"${ROOT}"/etc/ipsec.d/certs \
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"${ROOT}"/etc/ipsec.d/crls \
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"${ROOT}"/etc/ipsec.d/ocspcerts \
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"${ROOT}"/etc/ipsec.d/private \
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"${ROOT}"/etc/ipsec.d/reqs
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ewarn
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ewarn "The default permissions for /etc/ipsec.d/* have been tightened for"
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ewarn "security reasons. Your system installed directories have been"
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ewarn "updated accordingly. Please check if necessary."
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ewarn
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if [[ $previous_4_3_6_with_caps == 1 ]]; then
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if ! use non-root; then
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ewarn
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ewarn "IMPORTANT: You previously had ${PN} installed without root"
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ewarn "privileges because it was implied by the 'caps' USE flag."
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ewarn "This has been changed. If you want ${PN} with user privileges,"
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ewarn "you have to re-emerge it with the 'non-root' USE flag enabled."
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ewarn
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fi
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fi
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fi
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if ! use caps && ! use non-root; then
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ewarn
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ewarn "You have decided to run ${PN} with root privileges and built it"
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ewarn "without support for POSIX capability dropping. It is generally"
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ewarn "strongly suggested that you reconsider- especially if you intend"
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ewarn "to run ${PN} as server with a public ip address."
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ewarn
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ewarn "You should re-emerge ${PN} with at least the 'caps' USE flag enabled."
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ewarn
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fi
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if use non-root; then
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elog
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elog "${PN} has been installed without superuser privileges (USE=non-root)."
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elog "This imposes a few limitations mainly to the daemon 'charon' in"
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elog "regards of the use of iptables."
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elog
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elog "Please carefully read: http://wiki.strongswan.org/projects/strongswan/wiki/ReducedPrivileges"
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elog
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elog "Thus if you require to specify a custom updown"
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elog "script to charon which requires superuser privileges, you"
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elog "can work around this limitation by using sudo to grant the"
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elog "user \"ipsec\" the appropriate rights."
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elog "For example (the default case):"
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elog "/etc/sudoers:"
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elog " ipsec ALL=(ALL) NOPASSWD: SETENV: /usr/sbin/ipsec"
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elog "Under the specific connection block in /etc/ipsec.conf:"
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elog " leftupdown=\"sudo -E ipsec _updown iptables\""
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elog
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fi
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elog
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elog "Make sure you have _all_ required kernel modules available including"
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elog "the appropriate cryptographic algorithms. A list is available at:"
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elog " https://wiki.strongswan.org/projects/strongswan/wiki/KernelModules"
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elog
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elog "The up-to-date manual is available online at:"
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elog " https://wiki.strongswan.org/"
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elog
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}
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