MachO/Section.hpp

/* Copyright 2017 - 2023 R. Thomas
 * Copyright 2017 - 2023 Quarkslab
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef LIEF_MACHO_SECTION_H
#define LIEF_MACHO_SECTION_H
#include <string>
#include <vector>
#include <ostream>
#include <set>
#include <memory>
 
#include "LIEF/types.hpp"
#include "LIEF/visibility.h"
 
#include "LIEF/Abstract/Section.hpp"
 
#include "LIEF/MachO/LoadCommand.hpp"
#include "LIEF/iterators.hpp"
 
namespace LIEF {
namespace MachO {
 
class BinaryParser;
class SegmentCommand;
class Binary;
class Relocation;
 
namespace details {
struct section_32;
struct section_64;
}
 
class LIEF_API Section : public LIEF::Section {
 
  friend class BinaryParser;
  friend class Binary;
  friend class SegmentCommand;
 
  public:
 
  using content_t   = std::vector<uint8_t>;
  using flag_list_t = std::set<MACHO_SECTION_FLAGS>;
 
  using relocations_t = std::vector<std::unique_ptr<Relocation>>;
 
  using it_relocations = ref_iterator<relocations_t&, Relocation*>;
 
  using it_const_relocations = const_ref_iterator<const relocations_t&, const Relocation*>;
 
  public:
  Section();
  Section(const details::section_32& section_cmd);
  Section(const details::section_64& section_cmd);
 
  Section(std::string name);
  Section(std::string name, content_t content);
 
  Section& operator=(Section copy);
  Section(const Section& copy);
 
  void swap(Section& other);
 
  ~Section() override;
 
  span<const uint8_t> content() const override;
 
  void content(const content_t& data) override;
 
  const std::string& segment_name() const;
 
  uint64_t address() const;
 
  uint32_t alignment() const;
 
  uint32_t relocation_offset() const;
 
  uint32_t numberof_relocations() const;
 
  uint32_t flags() const;
 
  MACHO_SECTION_TYPES type() const;
 
  uint32_t reserved1() const;
 
  uint32_t reserved2() const;
 
  uint32_t reserved3() const;
 
  flag_list_t flags_list() const;
 
  uint32_t raw_flags() const;
 
  bool has_segment() const;
 
  SegmentCommand* segment();
  const SegmentCommand* segment() const;
 
  void clear(uint8_t v);
 
  it_relocations relocations();
  it_const_relocations relocations() const;
 
  void segment_name(const std::string& name);
  void address(uint64_t address);
  void alignment(uint32_t align);
  void relocation_offset(uint32_t relocOffset);
  void numberof_relocations(uint32_t nbReloc);
  void flags(uint32_t flags);
  void flags(flag_list_t flags);
  void type(MACHO_SECTION_TYPES type);
  void reserved1(uint32_t reserved1);
  void reserved2(uint32_t reserved2);
  void reserved3(uint32_t reserved3);
 
  bool has(MACHO_SECTION_FLAGS flag) const;
 
  void add(MACHO_SECTION_FLAGS flag);
 
  void remove(MACHO_SECTION_FLAGS flag);
 
  Section& operator+=(MACHO_SECTION_FLAGS flag);
  Section& operator-=(MACHO_SECTION_FLAGS flag);
 
  void accept(Visitor& visitor) const override;
 
 
  LIEF_API friend std::ostream& operator<<(std::ostream& os, const Section& section);
 
  private:
  std::string segment_name_;
  uint64_t original_size_ = 0;
  uint32_t align_ = 0;
  uint32_t relocations_offset_ = 0;
  uint32_t nbof_relocations_ = 0;
  uint32_t flags_ = 0;
  uint32_t reserved1_ = 0;
  uint32_t reserved2_ = 0;
  uint32_t reserved3_ = 0;
  content_t content_;
  SegmentCommand *segment_ = nullptr;
  relocations_t relocations_;
};
 
}
}
#endif