aioble/security: Add support for CCCD bonding.

Author: pi-anl

micropython/bluetooth/aioble/aioble/security.py

@@ -35,8 +35,8 @@
 limit_peers = None
 
 SEC_TYPES_SELF = (10, )
-SEC_TYPES_PEER = (1, 2, 3, 4)
-
+SEC_TYPES_PEER = (1, 2, 4)
+SEC_TYPES_CCCD = (3, )
 
 # Must call this before stack startup.
 def load_secrets(path=None):
@@ -124,7 +124,7 @@ def _log_peers(heading=""):
     if core.log_level <= 2:
         return
     log_info("secrets:", heading)
-    for sec_type in SEC_TYPES_PEER:
+    for sec_type in SEC_TYPES_PEER + SEC_TYPES_CCCD:
         log_info("-", sec_type)
 
         if sec_type not in _secrets:
@@ -216,6 +216,9 @@ def _security_irq(event, data):
 
             for k, v in secrets:
                 if k == key:
+                    if index:
+                        index -= 1
+                        continue
                     return v
             return None