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 36 class ContextsSerialized : public Contexts { 37 public: ~ContextsSerialized()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; GetSerialPropArea()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