1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#pragma once
30
31#include <property_info_parser/property_info_parser.h>
32
33#include "context_node.h"
34#include "contexts.h"
35
36class ContextsSerialized : public Contexts {
37 public:
38  virtual ~ContextsSerialized() override {
39  }
40
41  virtual bool Initialize(bool writable, const char* filename, bool* fsetxattr_failed) override;
42  virtual prop_area* GetPropAreaForName(const char* name) override;
43  virtual prop_area* GetSerialPropArea() override {
44    return serial_prop_area_;
45  }
46  virtual void ForEach(void (*propfn)(const prop_info* pi, void* cookie), void* cookie) override;
47  virtual void ResetAccess() override;
48  virtual void FreeAndUnmap() override;
49
50 private:
51  bool InitializeContextNodes();
52  bool InitializeProperties();
53  bool MapSerialPropertyArea(bool access_rw, bool* fsetxattr_failed);
54
55  const char* filename_;
56  android::properties::PropertyInfoAreaFile property_info_area_file_;
57  ContextNode* context_nodes_ = nullptr;
58  size_t num_context_nodes_ = 0;
59  size_t context_nodes_mmap_size_ = 0;
60  prop_area* serial_prop_area_ = nullptr;
61};
62