wpa_supplicant: Add systemd support

wpa_supplicant/dbus/fi.epitest.hostap.WPASupplicant.service

@@ -2,3 +2,4 @@
 Name=fi.epitest.hostap.WPASupplicant
 Exec=/sbin/wpa_supplicant -u
 User=root
+SystemdService=wpa_supplicant.service

wpa_supplicant/dbus/fi.w1.wpa_supplicant1.service

@@ -2,3 +2,4 @@
 Name=fi.w1.wpa_supplicant1
 Exec=/sbin/wpa_supplicant -u
 User=root
+SystemdService=wpa_supplicant.service

wpa_supplicant/systemd/wpa_supplicant-nl80211@.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=WPA supplicant daemon (interface- and nl80211 driver-specific version)
+Requires=sys-subsystem-net-devices-%i.device
+After=sys-subsystem-net-devices-%i.device
+
+# NetworkManager users will probably want the dbus version instead.
+
+[Service]
+Type=simple
+ExecStart=/sbin/wpa_supplicant -c/etc/wpa_supplicant/wpa_supplicant-nl80211-%I.conf -Dnl80211 -i%I
+
+[Install]
+Alias=network.target.wants/wpa_supplicant-nl80211@wlan0.service

wpa_supplicant/systemd/wpa_supplicant-wired@.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=WPA supplicant daemon (interface- and wired driver-specific version)
+Requires=sys-subsystem-net-devices-%i.device
+After=sys-subsystem-net-devices-%i.device
+
+# NetworkManager users will probably want the dbus version instead.
+
+[Service]
+Type=simple
+ExecStart=/sbin/wpa_supplicant -c/etc/wpa_supplicant/wpa_supplicant-wired-%I.conf -Dwired -i%I
+
+[Install]
+Alias=network.target.wants/wpa_supplicant-wired@wlan0.service

wpa_supplicant/systemd/wpa_supplicant.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=WPA supplicant
+
+[Service]
+Type=dbus
+BusName=fi.epitest.hostap.WPASupplicant
+ExecStart=/sbin/wpa_supplicant -u
+
+[Install]
+WantedBy=network.target
+Alias=dbus-fi.epitest.hostap.WPASupplicant.service

wpa_supplicant/systemd/wpa_supplicant@.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=WPA supplicant daemon (interface-specific version)
+Requires=sys-subsystem-net-devices-%i.device
+After=sys-subsystem-net-devices-%i.device
+
+# NetworkManager users will probably want the dbus version instead.
+
+[Service]
+Type=simple
+ExecStart=/sbin/wpa_supplicant -c/etc/wpa_supplicant/wpa_supplicant-%I.conf -i%I
+
+[Install]
+Alias=network.target.wants/wpa_supplicant@wlan0.service