connman: Use useradd to add the xuser for DBus

Connmand needs to start as the xuser as defined in the dbus
configuration and needs to share this with rootless X. Since
it's possible for connmand to run on a sytem without rootless
X we still need to create the user here.

Useradd will fail gracefully if the user already exists.

Fixes: [YOCTO #1699]

(From OE-Core rev: 8139ac9284031e00d6b268210b04b57670d9268a)

Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-connectivity/connman/connman.inc

@@ -18,7 +18,12 @@ DEPENDS  = "libgdbus dbus glib-2.0 iptables"
 INITSCRIPT_NAME = "connman"
 INITSCRIPT_PARAMS = "start 05 5 2 3 . stop 22 0 1 6 ."
 
-inherit autotools pkgconfig update-rc.d
+USERADD_PACKAGES = "${PN}"
+USERADD_PARAM_${PN} = "--system --no-create-home \
+                       --shell /bin/false --groups video,tty,audio \
+                       --user-group xuser"
+
+inherit autotools pkgconfig update-rc.d useradd
 
 do_install_append() {
     install -d ${D}${sysconfdir}/init.d/

meta/recipes-connectivity/connman/connman_0.75.bb

@@ -1,5 +1,5 @@
 require connman.inc
-PR = "r2"
+PR = "r3"
 
 EXTRA_OECONF += "\
   ac_cv_path_WPASUPPLICANT=/usr/sbin/wpa_supplicant \