openvpn: add PACKAGECONFIG for systemd

The systemd support had been integrated to openvpn for a long time. Add
PACKAGECONFIG for it and use its own service files and volatile file.

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-support/openvpn/openvpn/openvpn-volatile.conf

@@ -1 +0,0 @@
-d @LOCALSTATEDIR@/run/openvpn 0755 root root -

meta-networking/recipes-support/openvpn/openvpn/openvpn@.service

@@ -1,12 +0,0 @@
-[Unit]
-Description=OpenVPN Robust And Highly Flexible Tunneling Application On %I
-After=syslog.target network.target
-
-[Service]
-PrivateTmp=true
-Type=forking
-PIDFile=/var/run/openvpn/%i.pid
-ExecStart=/usr/sbin/openvpn --daemon --writepid /var/run/openvpn/%i.pid --cd /etc/openvpn/ --cipher AES-256-GCM --data-ciphers AES-256-GCM:AES-128-GCM:AES-256-CBC:AES-128-CBC:BF-CBC --config %i.conf
-
-[Install]
-WantedBy=multi-user.target

meta-networking/recipes-support/openvpn/openvpn_2.5.7.bb

@@ -5,13 +5,12 @@ LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b76abd82c14ee01cc34c4ff5e3627b89"
 DEPENDS = "lzo openssl iproute2 ${@bb.utils.contains('DISTRO_FEATURES', 'pam', 'libpam', '', d)}"
 
-inherit autotools systemd update-rc.d
+inherit autotools systemd update-rc.d pkgconfig
 
 SRC_URI = "http://swupdate.openvpn.org/community/releases/${BP}.tar.gz \
            file://0001-configure.ac-eliminate-build-path-from-openvpn-versi.patch \
            file://openvpn \
-           file://openvpn@.service \
+          "
-           file://openvpn-volatile.conf"
 
 UPSTREAM_CHECK_URI = "https://openvpn.net/community-downloads"
 
@@ -20,9 +19,6 @@ SRC_URI[sha256sum] = "08340a389905c84196b6cd750add1bc0fa2d46a1afebfd589c24120946
 # CVE-2020-7224 and CVE-2020-27569 are for Aviatrix OpenVPN client, not for openvpn.
 CVE_CHECK_IGNORE += "CVE-2020-7224 CVE-2020-27569"
 
-SYSTEMD_SERVICE:${PN} += "openvpn@loopback-server.service openvpn@loopback-client.service"
-SYSTEMD_AUTO_ENABLE = "disable"
-
 INITSCRIPT_PACKAGES = "${PN}"
 INITSCRIPT_NAME:${PN} = "openvpn"
 INITSCRIPT_PARAMS:${PN} = "start 10 2 3 4 5 . stop 70 0 1 6 ."
@@ -36,31 +32,30 @@ EXTRA_OECONF += "${@bb.utils.contains('DISTRO_FEATURES', 'pam', '', '--disable-p
 # Explicitly specify IPROUTE to bypass the configure-time check for /sbin/ip on the host.
 EXTRA_OECONF += "IPROUTE=${base_sbindir}/ip"
 
+EXTRA_OECONF += "SYSTEMD_UNIT_DIR=${systemd_system_unitdir} \
+                 TMPFILES_DIR=${nonarch_libdir}/tmpfiles.d \
+                "
+
+PACKAGECONFIG ??= "${@bb.utils.filter('DISTRO_FEATURES', 'systemd', d)} \
+                  "
+
+PACKAGECONFIG[systemd] = "--enable-systemd,--disable-systemd,systemd"
+
 do_install:append() {
     install -d ${D}/${sysconfdir}/init.d
     install -m 755 ${WORKDIR}/openvpn ${D}/${sysconfdir}/init.d
 
     install -d ${D}/${sysconfdir}/openvpn
+    install -d ${D}/${sysconfdir}/openvpn/server
+    install -d ${D}/${sysconfdir}/openvpn/client
+
     install -d ${D}/${sysconfdir}/openvpn/sample
-    install -m 755 ${S}/sample/sample-config-files/loopback-server  ${D}${sysconfdir}/openvpn/sample/loopback-server.conf
+    install -m 644 ${S}/sample/sample-config-files/loopback-server  ${D}${sysconfdir}/openvpn/sample/loopback-server.conf
-    install -m 755 ${S}/sample/sample-config-files/loopback-client  ${D}${sysconfdir}/openvpn/sample/loopback-client.conf
+    install -m 644 ${S}/sample/sample-config-files/loopback-client  ${D}${sysconfdir}/openvpn/sample/loopback-client.conf
     install -dm 755 ${D}${sysconfdir}/openvpn/sample/sample-keys
     install -m 644 ${S}/sample/sample-keys/* ${D}${sysconfdir}/openvpn/sample/sample-keys
 
-    if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
+    install -d -m 710 ${D}/${localstatedir}/lib/openvpn
-        install -d ${D}/${systemd_unitdir}/system
-        install -m 644 ${WORKDIR}/openvpn@.service ${D}/${systemd_unitdir}/system
-        install -m 644 ${WORKDIR}/openvpn@.service ${D}/${systemd_unitdir}/system/openvpn@loopback-server.service
-        install -m 644 ${WORKDIR}/openvpn@.service ${D}/${systemd_unitdir}/system/openvpn@loopback-client.service
-
-        install -d ${D}/${localstatedir}
-        install -d ${D}/${localstatedir}/lib
-        install -d -m 710 ${D}/${localstatedir}/lib/openvpn
-
-        install -d ${D}${sysconfdir}/tmpfiles.d
-        install -m 0644 ${WORKDIR}/openvpn-volatile.conf ${D}${sysconfdir}/tmpfiles.d/openvpn.conf
-        sed -i -e 's#@LOCALSTATEDIR@#${localstatedir}#g' ${D}${sysconfdir}/tmpfiles.d/openvpn.conf
-    fi
 }
 
 PACKAGES =+ " ${PN}-sample "
@@ -68,9 +63,9 @@ PACKAGES =+ " ${PN}-sample "
 RRECOMMENDS:${PN} = "kernel-module-tun"
 
 FILES:${PN}-dbg += "${libdir}/openvpn/plugins/.debug"
-FILES:${PN} += "${systemd_unitdir}/system/openvpn@.service \
+FILES:${PN} += "${systemd_system_unitdir}/openvpn-server@.service \
-                ${sysconfdir}/tmpfiles.d \
+                ${systemd_system_unitdir}/openvpn-client@.service \
+                ${nonarch_libdir}/tmpfiles.d \
                "
-FILES:${PN}-sample += "${systemd_unitdir}/system/openvpn@loopback-server.service \
+FILES:${PN}-sample = "${sysconfdir}/openvpn/sample/ \
-                       ${systemd_unitdir}/system/openvpn@loopback-client.service \
+                     "
-                       ${sysconfdir}/openvpn/sample/"