mirror of
https://github.com/lief-project/LIEF
synced 2026-06-08 15:30:44 +00:00
Romain Thomas
194 lines
6.2 KiB
C++
194 lines
6.2 KiB
C++
/* Copyright 2017 - 2022 R. Thomas
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* Copyright 2017 - 2022 Quarkslab
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "pyELF.hpp"
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#include "pyIterators.hpp"
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#include "LIEF/ELF/hash.hpp"
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#include "LIEF/Abstract/Section.hpp"
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#include "LIEF/ELF/Section.hpp"
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#include "LIEF/ELF/Segment.hpp"
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#include <string>
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#include <sstream>
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namespace LIEF {
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namespace ELF {
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template<class T>
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using getter_t = T (Section::*)(void) const;
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template<class T>
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using setter_t = void (Section::*)(T);
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template<class T>
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using no_const_getter = T (Section::*)(void);
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template<>
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void create<Section>(py::module& m) {
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// Section object
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py::class_<Section, LIEF::Section> sec(m, "Section",
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R"delim(
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Class which represents an ELF section.
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)delim");
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init_ref_iterator<Section::it_segments>(sec, "it_segments");
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sec
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.def(py::init<>(),
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"Default constructor")
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.def("as_frame",
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&Section::as_frame,
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py::return_value_policy::reference_internal)
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.def_property_readonly("is_frame",
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&Section::is_frame)
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.def(py::init<const std::string&, ELF_SECTION_TYPES>(),
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"Constructor from a name and a section type",
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"name"_a, "type"_a = ELF_SECTION_TYPES::SHT_PROGBITS)
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.def(py::init([] (Section& section, std::vector<uint8_t>& content, ELF_CLASS type) {
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return new Section(content.data(), type);
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}))
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.def_property("type",
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static_cast<getter_t<ELF_SECTION_TYPES>>(&Section::type),
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static_cast<setter_t<ELF_SECTION_TYPES>>(&Section::type),
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"Return the " RST_CLASS_REF(lief.ELF.SECTION_TYPES) "")
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.def_property("flags",
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static_cast<getter_t<uint64_t>>(&Section::flags),
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static_cast<setter_t<uint64_t>>(&Section::flags),
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"Return the section's flags as an integer")
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.def_property_readonly("flags_list",
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&Section::flags_list,
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"Return section's flags as a list of " RST_CLASS_REF(lief.ELF.SECTION_FLAGS) "")
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.def_property("file_offset",
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static_cast<getter_t<uint64_t>>(&Section::file_offset),
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static_cast<setter_t<uint64_t>>(&Section::file_offset),
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"Offset of the section's content")
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.def_property_readonly("original_size",
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static_cast<getter_t<uint64_t>>(&Section::original_size),
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R"delim(
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Original size of the section's data.
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This value is used by the :class:`~lief.ELF.Builder` to determine if it needs
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to be relocated to avoid an override of the data
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)delim")
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.def_property("alignment",
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static_cast<getter_t<uint64_t>>(&Section::alignment),
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static_cast<setter_t<uint64_t>>(&Section::alignment),
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"Section alignment")
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.def_property("information",
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static_cast<getter_t<uint64_t>>(&Section::information),
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static_cast<setter_t<uint32_t>>(&Section::information),
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"Section information (this value depends on the section)")
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.def_property("entry_size",
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static_cast<getter_t<uint64_t>>(&Section::entry_size),
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static_cast<setter_t<uint64_t>>(&Section::entry_size),
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R"delim(
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This property returns the size of an element in the case of a section that
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contains an array.
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:Example:
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The `.dynamic` section contains an array of :class:`~lief.ELF.DynamicEntry`. As the
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size of the raw C structure of this entry is 0x10 (``sizeof(Elf64_Dyn)``)
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in a ELF64, the :attr:`~lief.ELF.Section.entry_size`,
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is set to this value.
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)delim")
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.def_property("link",
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static_cast<getter_t<uint32_t>>(&Section::link),
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static_cast<setter_t<uint32_t>>(&Section::link),
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"Index to another section")
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.def_property_readonly("segments",
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static_cast<no_const_getter<Section::it_segments>>(&Section::segments),
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"Return segment(s) associated with the given section",
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py::return_value_policy::reference_internal)
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.def("clear",
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&Section::clear,
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"Clear the content of the section with the given ``value``",
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"value"_a = 0,
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py::return_value_policy::reference)
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.def("add",
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&Section::add,
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"Add the given " RST_CLASS_REF(lief.ELF.SECTION_FLAGS) " to the list of "
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":attr:`~lief.ELF.Section.flags`",
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"flag"_a)
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.def("remove",
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&Section::remove,
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"Remove the given " RST_CLASS_REF(lief.ELF.SECTION_FLAGS) " from the list of "
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":attr:`~lief.ELF.Section.flags`",
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"flag"_a)
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.def("has",
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static_cast<bool (Section::*)(ELF_SECTION_FLAGS) const>(&Section::has),
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"Check if the given " RST_CLASS_REF(lief.ELF.SECTION_FLAGS) " is present",
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"flag"_a)
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.def("has",
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static_cast<bool (Section::*)(const Segment&) const>(&Section::has),
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"Check if the given " RST_CLASS_REF(lief.ELF.Segment) " is present "
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"in :attr:`~lief.ELF.Section.segments`",
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"segment"_a)
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.def("__eq__", &Section::operator==)
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.def("__ne__", &Section::operator!=)
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.def("__hash__",
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[] (const Section& section) {
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return Hash::hash(section);
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})
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.def(py::self += ELF_SECTION_FLAGS())
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.def(py::self -= ELF_SECTION_FLAGS())
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.def("__contains__",
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static_cast<bool (Section::*)(ELF_SECTION_FLAGS) const>(&Section::has),
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"Check if the given " RST_CLASS_REF(lief.ELF.SECTION_FLAGS) " is present")
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.def("__contains__",
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static_cast<bool (Section::*)(const Segment&) const>(&Section::has),
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"Check if the given " RST_CLASS_REF(lief.ELF.Segment) " is present "
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"in :attr:`~lief.ELF.Section.segments`")
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.def("__str__",
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[] (const Section& section)
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{
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std::ostringstream stream;
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stream << section;
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return stream.str();
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});
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}
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}
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}
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