mirror of
https://github.com/QuasarApp/LIEF.git
synced 2025-04-27 04:44:31 +00:00
b94900ca7f
Major changes (features):
* Enable adding multiple sections/segments - Executable (PIE or not), Library
* Enable adding multiple dynamic entries (DT_NEEDED, DT_INIT etc)
* Enable adding multiple relocations
* Enable adding multiple dynamic symbols
* Enable segment replacement
Major changes (API):
* Getters Binary::get_*name*() has been renamed to "name()"
* Binary::add(const DynamicEntry& entry) - To add an entry in the dynamic table
* Section& Binary::add(const Section& section, bool loaded = true) - To add a section(s)
* Segment& Binary::add(const Segment& segment, uint64_t base = 0) - To add segments
* Segment& replace(const Segment& new_segment, const Segment& original_segment, uint64_t base = 0)
* Binary's last_offset_section(), last_offset_segment(), next_virtual_address()
to have information about offset
* Binary's add_library(), get_library(), has_library() to handle
DT_NEEDED entries
Other changes:
* Binary::insert_content() - Use add(const Section&) or add(const Segment&) instead
* ELF's DataHandler has been cleaned
* Through LIEF::Section one can look for integers, strings, data
within the section (see LIEF::Section::search,
LIEF::Section::search_all)
* Through LIEF::Binary one can get *xref* of a number (or address)
see LIEF::Binary::xref function
* To access to the Abstract binary in Python, one can now use
the 'abstract' attribute. (e.g. binary.abstract.header.is_32)
Resolve: #83
Resolve: #66
Resolve: #48
121 lines
3.4 KiB
C++
121 lines
3.4 KiB
C++
/* Copyright 2017 R. Thomas
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* Copyright 2017 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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#define CATCH_CONFIG_MAIN
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#include <catch.hpp>
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#include <yaml-cpp/yaml.h>
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#include <LIEF/ELF.hpp>
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#include "utils.hpp"
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extern const YAML::Node config = YAML::LoadFile(std::string(PATH_TO_CONFIG) + "/config.yaml");
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using namespace LIEF::ELF;
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TEST_CASE("Test remove dynamic symbol", "[elf][modifier][symbol][dynamic]")
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{
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using namespace Catch::Generators;
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std::vector<std::string> elf_files = Test::get_elf_files();
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// Get one
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std::vector<std::string>::iterator elf_file = between(
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std::begin(elf_files),
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std::prev(std::end(elf_files)));
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const std::string& elf_file_str = *elf_file;
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//if (elf_file_str.find("systemd-resolve.bin") == std::string::npos) {
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if (elf_file_str.find("binary_tiny") != std::string::npos) {
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INFO("Skip " << elf_file_str);
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return;
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}
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if (elf_file_str.find("ELF64_x86-64_binary_rvs.bin") != std::string::npos) {
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INFO("Skip " << elf_file_str);
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return;
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}
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INFO("Binary used: " << elf_file_str);
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std::unique_ptr<Binary> binary = std::unique_ptr<Binary>{Parser::parse(elf_file_str)};
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it_symbols dynamic_symbols = binary->dynamic_symbols();
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auto&& it_symbol = std::find_if(
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std::begin(dynamic_symbols),
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std::end(dynamic_symbols),
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[] (const Symbol& symbol) {
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return symbol.name().length() > 2;
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});
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if (it_symbol == std::end(dynamic_symbols)) {
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return;
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}
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auto&& it_symbol_bis = std::find_if(
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std::begin(dynamic_symbols),
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std::end(dynamic_symbols),
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[&it_symbol] (const Symbol& symbol) {
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return symbol.name().length() > 2 and *it_symbol != symbol;
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});
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if (it_symbol_bis == std::end(dynamic_symbols)) {
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return;
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}
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const std::string symbol_removed_name = it_symbol->name();
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const std::string symbol_bis_removed_name = it_symbol_bis->name();
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INFO("Symbol that will be removed: " << symbol_removed_name << " and " << symbol_bis_removed_name);
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Symbol* symbol = &(*it_symbol);
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binary->remove_dynamic_symbol(symbol);
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binary->remove_dynamic_symbol(symbol_bis_removed_name);
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std::string output_name = binary->name() + "_test_remove_symbol";
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binary->write(output_name);
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std::unique_ptr<Binary> binary_updated = std::unique_ptr<Binary>{Parser::parse(output_name)};
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dynamic_symbols = binary_updated->dynamic_symbols();
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it_symbol = std::find_if(
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std::begin(dynamic_symbols),
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std::end(dynamic_symbols),
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[&symbol_removed_name] (const Symbol& symbol) {
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return symbol.name() == symbol_removed_name;
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});
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it_symbol_bis = std::find_if(
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std::begin(dynamic_symbols),
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std::end(dynamic_symbols),
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[&symbol_bis_removed_name] (const Symbol& symbol) {
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return symbol.name() == symbol_bis_removed_name;
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});
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REQUIRE(it_symbol == std::end(dynamic_symbols));
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REQUIRE(it_symbol_bis == std::end(dynamic_symbols));
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}
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