1 files changed, 14 insertions, 0 deletions
diff --git a/src/filters/log.rs b/src/filters/log.rs
index b9843e9..79513d5 100644
--- a/src/filters/log.rs
+++ b/src/filters/log.rs
@@ -186,6 +186,20 @@ pub fn log_before(when: DateTime<Utc>) -> Box<dyn LogFilter> {
     log_time(None, Some(when))
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+struct CmFilter;
+
+impl Filter<EarlyLogResult, LogResult> for CmFilter {
+    fn filter(&self, log: &LogResult) -> bool {
+        log.is_cm
+    }
+}
+
+/// A filter that only includes logs that had the Challenge Mote turned on.
+pub fn challenge_mote() -> Box<dyn LogFilter> {
+    Box::new(CmFilter)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;