content/test/fuzzer/idb_factory_mojolpm_fuzzer.proto

// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Message format for the MojoLPM fuzzer for the IDBFactory interface.

syntax = "proto2";

package content.fuzzing.idb_factory.proto;

import "third_party/blink/public/mojom/indexeddb/indexeddb.mojom.mojolpm.proto";

// Bind a new IDBFactory remote.
message NewIDBFactoryAction {
  required uint32 id = 1;
}

// Post a task on the specified thread's task runner, continuing when complete.
// This is not intended to create a specific ordering but to allow the fuzzer to
// delay a later task until previous tasks have completed.
message RunThreadAction {
  enum ThreadId {
    UI = 0;
    IO = 1;
    Bucket = 2;
  }
  required ThreadId id = 1;
}

// Actions that can be performed by the fuzzer.
message Action {
  oneof action {
    NewIDBFactoryAction new_idb_factory = 1;
    RunThreadAction run_thread = 2;
    mojolpm.blink.mojom.IDBFactory.RemoteAction idb_factory_remote_action = 3;
    mojolpm.blink.mojom.IDBDatabase.AssociatedRemoteAction
        idb_database_associated_remote_action = 4;
    mojolpm.blink.mojom.IDBTransaction.AssociatedRemoteAction
        idb_transaction_associated_remote_action = 5;
  }
}

// Sequence provides a level of indirection which allows Testcase to compactly
// express repeated sequences of actions.
message Sequence {
  repeated uint32 action_indexes = 1 [packed = true];
}

// Testcase is the top-level message type interpreted by the fuzzer.
message Testcase {
  repeated Action actions = 1;
  repeated Sequence sequences = 2;
  repeated uint32 sequence_indexes = 3 [packed = true];
  required bool in_memory = 4;
  required bool use_sqlite = 5;
}