[LoRaWAN] Expose downlink framecounters

keywords.txt

@@ -298,6 +298,9 @@ uplink	KEYWORD2
 downlink	KEYWORD2
 sendReceive	KEYWORD2
 setDeviceStatus	KEYWORD2
+getFcntUp	KEYWORD2
+getNFcntDown	KEYWORD2
+getAFcntDown	KEYWORD2
 setDatarate	KEYWORD2
 setADR	KEYWORD2
 setTxPower	KEYWORD2

src/protocols/LoRaWAN/LoRaWAN.cpp

@@ -1335,6 +1335,14 @@ uint32_t LoRaWANNode::getFcntUp() {
   return(this->fcntUp);
 }
 
+uint32_t LoRaWANNode::getNFcntDown() {
+  return(this->nFcntDown);
+}
+
+uint32_t LoRaWANNode::getAFcntDown() {
+  return(this->aFcntDown);
+}
+
 uint32_t LoRaWANNode::generateMIC(uint8_t* msg, size_t len, uint8_t* key) {
   if((msg == NULL) || (len == 0)) {
     return(0);

src/protocols/LoRaWAN/LoRaWAN.h

@@ -527,6 +527,12 @@ class LoRaWANNode {
     /*! \brief Returns the last uplink's frame counter */
     uint32_t getFcntUp();
 
+    /*! \brief Returns the last network downlink's frame counter */
+    uint32_t getNFcntDown();
+
+    /*! \brief Returns the last application downlink's frame counter */
+    uint32_t getAFcntDown();
+
     /*!
       \brief Set uplink datarate. This should not be used when ADR is enabled.
       \param dr Datarate to use for uplinks.