diff --git a/Makefile.crtools b/Makefile.crtools
index 7f21d25ff..9156fe55d 100644
--- a/Makefile.crtools
+++ b/Makefile.crtools
@@ -69,6 +69,7 @@ endif
 obj-y	+= cr-service.o
 obj-y	+= sd-daemon.o
 obj-y	+= plugin.o
+obj-y	+= cr-errno.o
 
 ifneq ($(MAKECMDGOALS),clean)
 incdeps := y
diff --git a/cr-errno.c b/cr-errno.c
new file mode 100644
index 000000000..b62bb545a
--- /dev/null
+++ b/cr-errno.c
@@ -0,0 +1,12 @@
+static int cr_errno;
+
+int get_cr_errno(void)
+{
+	return cr_errno;
+}
+
+void set_cr_errno(int new_err)
+{
+	if (!cr_errno)
+		cr_errno = new_err;
+}
diff --git a/include/cr-errno.h b/include/cr-errno.h
new file mode 100644
index 000000000..ccea5cd15
--- /dev/null
+++ b/include/cr-errno.h
@@ -0,0 +1,7 @@
+#ifndef __CR_ERRNO_H__
+#define __CR_ERRNO_H__
+
+void set_cr_errno(int err);
+int get_cr_errno(void);
+
+#endif /* __CR_ERRNO_H__ */