Bugfix: Dont read non-existing attributes for lock/unlock commands

src/app/clusters/door-lock-server/door-lock-server.cpp

@@ -3143,13 +3143,19 @@ bool DoorLockServer::HandleRemoteLockOperation(chip::app::CommandHandler * comma
     }
     else
     {
-        // appclusters.pdf 5.3.4.1:
-        // If the RequirePINforRemoteOperation attribute is True then PINCode field SHALL be provided and the door lock SHALL NOT
-        // grant access if it is not provided.
         bool requirePin = false;
-        VerifyOrExit(GetAttribute(endpoint, Attributes::RequirePINforRemoteOperation::Id,
-                                  Attributes::RequirePINforRemoteOperation::Get, requirePin),
-                     /* credentialsOk is false here */);
+
+        // appclusters.pdf 5.3.4.1:
+        // If the RequirePINForRemoteOperation attribute is True then PINCode field SHALL be provided and the door lock SHALL NOT
+        // grant access if it is not provided. This attribute exists when COTA and PIN features are both enabled. Otherwise we
+        // assume PIN to be OK.
+        if (SupportsCredentialsOTA(endpoint) && SupportsPIN(endpoint))
+        {
+            auto status = Attributes::RequirePINforRemoteOperation::Get(endpoint, &requirePin);
+            VerifyOrExit(
+                EMBER_ZCL_STATUS_UNSUPPORTED_ATTRIBUTE == status || EMBER_ZCL_STATUS_SUCCESS == status,
+                ChipLogError(Zcl, "Failed to read Require PIN For Remote Operation attribute, status=0x%x", to_underlying(status)));
+        }
         credentialsOk = !requirePin;
     }
 

src/app/clusters/door-lock-server/door-lock-server.h

@@ -168,6 +168,11 @@ class DoorLockServer
 
     inline bool SupportsSchedules(chip::EndpointId endpointId) { return HasFeature(endpointId, DoorLockFeature::kAccessSchedules); }
 
+    inline bool SupportsCredentialsOTA(chip::EndpointId endpointId)
+    {
+        return HasFeature(endpointId, DoorLockFeature::kCredentialsOTA);
+    }
+
     inline bool SupportsUSR(chip::EndpointId endpointId)
     {
         // appclusters, 5.2.2: USR feature has conformance [PIN | RID | FGP | FACE]

src/app/tests/suites/DL_LockUnlock.yaml

@@ -28,6 +28,26 @@ tests:
               - name: "nodeId"
                 value: nodeId
 
+    - label: "Try to unlock the door without PIN"
+      command: "UnlockDoor"
+      timedInteractionTimeoutMs: 10000
+
+    - label: "Verify that lock state attribute value is set to Unlocked"
+      command: "readAttribute"
+      attribute: "LockState"
+      response:
+          value: 2
+
+    - label: "Try to unlock the door without a PIN"
+      command: "LockDoor"
+      timedInteractionTimeoutMs: 10000
+
+    - label: "Verify that lock state attribute value is set to Locked"
+      command: "readAttribute"
+      attribute: "LockState"
+      response:
+          value: 1
+
     - label: "Create new PIN credential and lock/unlock user"
       command: "SetCredential"
       timedInteractionTimeoutMs: 10000