--- /dev/null
+# This bbclass is mainly used for image level user/group configuration.
+# Inherit this class if you want to make EXTRA_USERS_PARAMS effective.
+
+# Below is an example showing how to use this functionality.
+# INHERIT += "extrausers"
+# EXTRA_USERS_PARAMS = "\
+# useradd -p '' tester; \
+# groupadd developers; \
+# userdel nobody; \
+# groupdel -g video; \
+# groupmod -g 1020 developers; \
+# usermod -s /bin/sh tester; \
+# "
+
+
+inherit useradd_base
+
+IMAGE_INSTALL_append = " ${@['', 'base-passwd shadow'][bool(d.getVar('EXTRA_USERS_PARAMS', True))]}"
+
+# Image level user / group settings
+ROOTFS_POSTPROCESS_COMMAND_append = " set_user_group;"
+
+# Image level user / group settings
+set_user_group () {
+ user_group_settings="${EXTRA_USERS_PARAMS}"
+ export PSEUDO="${FAKEROOTENV} ${STAGING_DIR_NATIVE}${bindir}/pseudo"
+ setting=`echo $user_group_settings | cut -d ';' -f1`
+ remaining=`echo $user_group_settings | cut -d ';' -f2-`
+ while test "x$setting" != "x"; do
+ cmd=`echo $setting | cut -d ' ' -f1`
+ opts=`echo $setting | cut -d ' ' -f2-`
+ # Different from useradd.bbclass, there's no file locking issue here, as
+ # this setting is actually a serial process. So we only retry once.
+ case $cmd in
+ useradd)
+ perform_useradd "${IMAGE_ROOTFS}" "-R ${IMAGE_ROOTFS} $opts" 1
+ ;;
+ groupadd)
+ perform_groupadd "${IMAGE_ROOTFS}" "-R ${IMAGE_ROOTFS} $opts" 1
+ ;;
+ userdel)
+ perform_userdel "${IMAGE_ROOTFS}" "-R ${IMAGE_ROOTFS} $opts" 1
+ ;;
+ groupdel)
+ perform_groupdel "${IMAGE_ROOTFS}" "-R ${IMAGE_ROOTFS} $opts" 1
+ ;;
+ usermod)
+ perform_usermod "${IMAGE_ROOTFS}" "-R ${IMAGE_ROOTFS} $opts" 1
+ ;;
+ groupmod)
+ perform_groupmod "${IMAGE_ROOTFS}" "-R ${IMAGE_ROOTFS} $opts" 1
+ ;;
+ *)
+ bbfatal "Invalid command in EXTRA_USERS_PARAMS: $cmd"
+ ;;
+ esac
+ # iterate to the next setting
+ setting=`echo $remaining | cut -d ';' -f1`
+ remaining=`echo $remaining | cut -d ';' -f2-`
+ done
+}