From 7fd3bc84c142e57395d12c8f4273b1ac193d940d Mon Sep 17 00:00:00 2001
From: alwaysonketo <43084048+cuizelin99@users.noreply.github.com>
Date: Mon, 19 Jun 2023 09:59:05 -0700
Subject: [PATCH] Cancel incomplete BLE connection when
 CloseAllBleConnections() is called (#27304)

When CloseAllBleConnections() is called, any ongoing attempt to establish new BLE connection should be cancelled because it is no longer needed for a new BLE connection to establish. CancelConnection() of the connection delegate should be called to cancel any ongoing new BLE connection so that platform- specific BLEManager can do cleanup. This is needed because we are encountering a problem that BLEManager not doing clean up when establishing PASE session times out, causing problem in the BT layer. Since BLEManager is platform-specific, it doesn't have knowledge of when PASE times out. But BLEManager needs to do clean up whenever CloseAllBleConnections() is called.
---
 src/ble/BleLayer.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/ble/BleLayer.cpp b/src/ble/BleLayer.cpp
index 9109924ccd3754..57a8ca8dc0fdff 100644
--- a/src/ble/BleLayer.cpp
+++ b/src/ble/BleLayer.cpp
@@ -308,6 +308,13 @@ void BleLayer::Shutdown()
 
 void BleLayer::CloseAllBleConnections()
 {
+    // Cancel any ongoing attempt to establish new BLE connection
+    CHIP_ERROR err = CancelBleIncompleteConnection();
+    if (err != CHIP_NO_ERROR)
+    {
+        ChipLogError(Ble, "CancelBleIncompleteConnection() failed, err = %" CHIP_ERROR_FORMAT, err.Format());
+    }
+
     // Close and free all BLE end points.
     for (size_t i = 0; i < BLE_LAYER_NUM_BLE_ENDPOINTS; i++)
     {