Provide methods to obtain a clock's parent and time properties data sets.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>

clock.c

@@ -287,6 +287,11 @@ void clock_install_fda(struct clock *c, struct port *p, struct fdarray fda)
 	}
 }
 
+struct parentDS *clock_parent_ds(struct clock *c)
+{
+	return &c->dad;
+}
+
 struct PortIdentity clock_parent_identity(struct clock *c)
 {
 	return c->dad.parentPortIdentity;
@@ -422,6 +427,11 @@ enum servo_state clock_synchronize(struct clock *c,
 	return state;
 }
 
+struct timePropertiesDS *clock_time_properties(struct clock *c)
+{
+	return &c->tds;
+}
+
 static void handle_state_decision_event(struct clock *c)
 {
 	struct foreign_clock *best = NULL, *fc;

clock.h

@@ -102,6 +102,13 @@ struct ClockIdentity clock_identity(struct clock *c);
  */
 void clock_install_fda(struct clock *c, struct port *p, struct fdarray fda);
 
+/**
+ * Obtain a clock's parent data set.
+ * @param c  The clock instance.
+ * @return   A pointer to the parent data set of the clock.
+ */
+struct parentDS *clock_parent_ds(struct clock *c);
+
 /**
  * Obtain the parent port identity from a clock's parent data set.
  * @param c  The clock instance.
@@ -157,4 +164,11 @@ enum servo_state clock_synchronize(struct clock *c,
 				   Integer64 correction1,
 				   Integer64 correction2);
 
+/**
+ * Obtain a clock's time properties data set.
+ * @param c  The clock instance.
+ * @return   A pointer to the time properties data set of the clock.
+ */
+struct timePropertiesDS *clock_time_properties(struct clock *c);
+
 #endif