From e4813f4fe9fbed95752c5f2655a63cb419aaa04c Mon Sep 17 00:00:00 2001
From: Vincent Coubard <vincent.coubard@arm.com>
Date: Tue, 1 May 2018 11:33:36 +0100
Subject: [PATCH] Cordio PAL Security Manager: Copy locally own IRK.

The IRK needs to be stored somewhere as it is not copied inside the stack, the stack just keeps a reference to it.
---
 .../targets/TARGET_CORDIO/CordioPalSecurityManager.h           | 1 +
 .../targets/TARGET_CORDIO/source/CordioPalSecurityManager.cpp  | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/features/FEATURE_BLE/targets/TARGET_CORDIO/CordioPalSecurityManager.h b/features/FEATURE_BLE/targets/TARGET_CORDIO/CordioPalSecurityManager.h
index d7a0a21cd9..850e50f3d0 100644
--- a/features/FEATURE_BLE/targets/TARGET_CORDIO/CordioPalSecurityManager.h
+++ b/features/FEATURE_BLE/targets/TARGET_CORDIO/CordioPalSecurityManager.h
@@ -326,6 +326,7 @@ private:
     passkey_num_t _default_passkey;
     bool _lesc_keys_generated;
     uint8_t _public_key_x[SEC_ECC_KEY_LEN];
+    irk_t _irk;
 };
 
 } // cordio
diff --git a/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioPalSecurityManager.cpp b/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioPalSecurityManager.cpp
index e121906101..538d39e23f 100644
--- a/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioPalSecurityManager.cpp
+++ b/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioPalSecurityManager.cpp
@@ -264,7 +264,8 @@ ble_error_t CordioSecurityManager::set_ltk_not_found(
 
 ble_error_t CordioSecurityManager::set_irk(const irk_t& irk)
 {
-    DmSecSetLocalIrk(const_cast<uint8_t*>(irk.data()));
+    _irk = irk;
+    DmSecSetLocalIrk(_irk.data());
     return BLE_ERROR_NONE;
 }