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# Created by: Matthias Andree <mandree@FreeBSD.org>
# $FreeBSD$

PORTNAME=       openvpn
DISTVERSION=        2.4.7
PORTREVISION?=      0
CATEGORIES=     security net net-vpn
MASTER_SITES=       https://swupdate.openvpn.org/community/releases/ \
            https://build.openvpn.net/downloads/releases/

MAINTAINER=     mandree@FreeBSD.org
COMMENT?=       Secure IP/Ethernet tunnel daemon

LICENSE=        GPLv2
LICENSE_FILE=       ${WRKSRC}/COPYRIGHT.GPL

USES=           cpe libtool pkgconfig shebangfix tar:xz

CONFLICTS_INSTALL?= openvpn-2.[!4].* openvpn-[!2].* openvpn-beta-[0-9]* openvpn-devel-[0-9]* openvpn-mbedtls-[0-9]*

GNU_CONFIGURE=      yes
SHEBANG_FILES=      sample/sample-scripts/verify-cn \
            sample/sample-scripts/auth-pam.pl \
            sample/sample-scripts/ucn.pl
CONFIGURE_ARGS+=    --enable-strict
# avoid picking up CMAKE, we don't have cmocka in the tarballs.
CONFIGURE_ENV+=     ac_cv_prog_CMAKE= CMAKE=

# let OpenVPN's configure script pick up the requisite libraries,
# but do not break the plugin build if an older version is installed
CPPFLAGS+=      -I${WRKSRC}/include -I${LOCALBASE}/include
LDFLAGS+=       -L${LOCALBASE}/lib

# set PLUGIN_LIBDIR so that unqualified plugin paths are found:
CPPFLAGS+=      -DPLUGIN_LIBDIR=\\\"${PREFIX}/lib/openvpn/plugins\\\"

OPTIONS_DEFINE=     PKCS11 EASYRSA DOCS EXAMPLES X509ALTUSERNAME \
            TEST LZ4 SMALL TUNNELBLICK
OPTIONS_DEFAULT=    EASYRSA OPENSSL TEST LZ4
OPTIONS_SINGLE=     SSL
OPTIONS_SINGLE_SSL= OPENSSL MBEDTLS
PKCS11_DESC=        Use security/pkcs11-helper
EASYRSA_DESC=       Install security/easy-rsa RSA helper package
MBEDTLS_DESC=       SSL/TLS via mbedTLS (lacks TLS v1.3)
TUNNELBLICK_DESC=   Tunnelblick XOR scramble patch (READ HELP!)
X509ALTUSERNAME_DESC=   Enable --x509-username-field (OpenSSL only)
SMALL_DESC=     Build a smaller executable with fewer features

EASYRSA_RUN_DEPENDS=    easy-rsa>=0:security/easy-rsa

PKCS11_LIB_DEPENDS= libpkcs11-helper.so:security/pkcs11-helper
PKCS11_CONFIGURE_ENABLE=    pkcs11
PKCS11_PREVENTS=    MBEDTLS
PKCS11_PREVENTS_MSG=    OpenVPN cannot use pkcs11-helper with mbedTLS. Disable PKCS11, or use OpenSSL instead

TUNNELBLICK_EXTRA_PATCHES=  ${FILESDIR}/extra-tunnelblick-openvpn_xorpatch

X509ALTUSERNAME_CONFIGURE_ENABLE=   x509-alt-username

X509ALTUSERNAME_PREVENTS=   MBEDTLS
X509ALTUSERNAME_PREVENTS_MSG=   OpenVPN ${DISTVERSION} cannot use --x509-username-field with mbedTLS. Disable X509ALTUSERNAME, or use OpenSSL instead

OPENSSL_USES=       ssl
OPENSSL_CONFIGURE_ON=   --with-crypto-library=openssl

LZ4_CONFIGURE_OFF=  --disable-lz4

SMALL_CONFIGURE_ON= --enable-small

MBEDTLS_LIB_DEPENDS=    libmbedtls.so:security/mbedtls
MBEDTLS_CONFIGURE_ON=   --with-crypto-library=mbedtls

USE_RC_SUBR=        openvpn

SUB_FILES=      pkg-message openvpn-client

.ifdef (LOG_OPENVPN)
CFLAGS+=        -DLOG_OPENVPN=${LOG_OPENVPN}
.endif

LIB_DEPENDS+=       liblzo2.so:archivers/lzo2

LZ4_LIB_DEPENDS+=   liblz4.so:archivers/liblz4

PORTDOCS=       *
PORTEXAMPLES=       *

TEST_ALL_TARGET=    check
TEST_TEST_TARGET_OFF=   check

pre-configure:
.ifdef (LOG_OPENVPN)
    @${ECHO} "Building with LOG_OPENVPN=${LOG_OPENVPN}"
.else
    @${ECHO} ""
    @${ECHO} "You may use the following build options:"
    @${ECHO} ""
    @${ECHO} "      LOG_OPENVPN={Valid syslog facility, default LOG_DAEMON}"
    @${ECHO} "      EXAMPLE:  make LOG_OPENVPN=LOG_LOCAL6"
    @${ECHO} ""
.endif

post-configure:
    ${REINPLACE_CMD} '/^CFLAGS =/s/$$/ -fPIC/' \
        ${WRKSRC}/src/plugins/auth-pam/Makefile \
        ${WRKSRC}/src/plugins/down-root/Makefile

.include <bsd.port.options.mk>

.if ${PORT_OPTIONS:MMBEDTLS}
_tlslibs=libmbedtls libmbedx509 libmbedcrypto
.else
# OpenSSL
_tlslibs=libssl libcrypto
.endif

# sanity check that we don't inherit incompatible SSL libs through,
# for instance, pkcs11-helper:
post-build:
    @a=$$(LC_ALL=C ldd -f '%o\n' ${WRKSRC}/src/openvpn/openvpn \
    |   ${SORT} -u) ; set -- $$(for i in ${_tlslibs} ; do ${PRINTF} '%s\n' "$$a" | ${GREP} $${i}.so | wc -l ; done | ${SORT} -u) ;\
    if test "$$*" != "1" ; then ${ECHO_CMD} >&2 "${.CURDIR} FAILED: either of ${_tlslibs} libraries linked multiple times" ; ${PRINTF} '%s\n' "$$a"; ${RM} ${BUILD_COOKIE} ; exit 1 ; fi

post-install:
    ${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/openvpn/plugins/openvpn-plugin-auth-pam.so
    ${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/openvpn/plugins/openvpn-plugin-down-root.so
    ${INSTALL_SCRIPT} ${WRKSRC}/contrib/pull-resolv-conf/client.up ${STAGEDIR}${PREFIX}/libexec/openvpn-client.up
    ${INSTALL_SCRIPT} ${WRKSRC}/contrib/pull-resolv-conf/client.down ${STAGEDIR}${PREFIX}/libexec/openvpn-client.down
    @${REINPLACE_CMD} 's|resolvconf -p -a|resolvconf -a|' ${STAGEDIR}${PREFIX}/libexec/openvpn-client.up
    ${INSTALL_SCRIPT} ${WRKDIR}/openvpn-client ${STAGEDIR}${PREFIX}/sbin/openvpn-client
    ${MKDIR} ${STAGEDIR}${PREFIX}/include

post-install-DOCS-on:
    ${MKDIR} ${STAGEDIR}${DOCSDIR}/
.for i in AUTHORS ChangeLog PORTS
    ${INSTALL_DATA} ${WRKSRC}/${i} ${STAGEDIR}${DOCSDIR}/
.endfor

post-install-EXAMPLES-on:
    (cd ${WRKSRC}/sample && ${COPYTREE_SHARE} \* ${STAGEDIR}${EXAMPLESDIR}/)
    ${CHMOD} ${BINMODE} ${STAGEDIR}${EXAMPLESDIR}/sample-scripts/*

.include <bsd.port.mk>