From 62276e070bcc4baac09236f2ecd7409eaf51728d Mon Sep 17 00:00:00 2001
From: StevenCellist <steven@boonstoppel.nu>
Date: Sat, 9 Dec 2023 10:28:13 +0100
Subject: [PATCH] [LoRaWAN] Expose downlink framecounters

---
 keywords.txt                      | 3 +++
 src/protocols/LoRaWAN/LoRaWAN.cpp | 8 ++++++++
 src/protocols/LoRaWAN/LoRaWAN.h   | 6 ++++++
 3 files changed, 17 insertions(+)

diff --git a/keywords.txt b/keywords.txt
index 24369e17..6394b32a 100644
--- a/keywords.txt
+++ b/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
diff --git a/src/protocols/LoRaWAN/LoRaWAN.cpp b/src/protocols/LoRaWAN/LoRaWAN.cpp
index 99c93549..a9370da5 100644
--- a/src/protocols/LoRaWAN/LoRaWAN.cpp
+++ b/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);
diff --git a/src/protocols/LoRaWAN/LoRaWAN.h b/src/protocols/LoRaWAN/LoRaWAN.h
index 30ff2512..f8e1365f 100644
--- a/src/protocols/LoRaWAN/LoRaWAN.h
+++ b/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.