sm: fix CTKD over BR/EDR

CHANGELOG.md

@@ -13,7 +13,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Fixed
 - RFCOMM: shut down multiplexer after closing last channel instead of multiplexer idle timer
 - HID Host: return complete HID report
-
+- SM: fix CTDK key distribution over BR/EDR
+ 
 ### Changed
 - GAP: return command disallowed if disconnect already requested
 

src/ble/sm.c

@@ -3319,10 +3319,16 @@ static void sm_run(void){
                 sm_send_connectionless(connection, (uint8_t *) &setup->sm_s_pres, sizeof(sm_pairing_packet_t));
                 break;
             case SM_BR_EDR_DISTRIBUTE_KEYS:
+                // send next key
                 if (setup->sm_key_distribution_send_set != 0) {
                     sm_run_distribute_keys(connection);
+                }
+
+                // more to send?
+                if (setup->sm_key_distribution_send_set != 0){
                     return;
                 }
+
                 // keys are sent
                 if (IS_RESPONDER(connection->sm_role)) {
                     // responder -> receive master keys if there are any