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146 lines
4.5 KiB
146 lines
4.5 KiB
3 years ago
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#include "qvminspector.h"
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qvminspector_t::qvminspector_t( qwidget_t *parent ) : qmain_window_t( parent ), file_header( nullptr ), vmctx( nullptr )
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{
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ui.setupUi( this );
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ui.virt_instrs->setColumnWidth( 0, 100 );
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ui.virt_instrs->setColumnWidth( 1, 125 );
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ui.virt_instrs->setColumnWidth( 2, 250 );
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ui.virt_instrs->setColumnWidth( 3, 200 );
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connect( ui.action_open, &QAction::triggered, this, &qvminspector_t::on_open );
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connect( ui.action_close, &QAction::triggered, this, &qvminspector_t::on_close );
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}
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void qvminspector_t::on_close()
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{
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exit( 0 );
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}
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void qvminspector_t::on_open()
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{
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if ( file_header && vmctx )
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{
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free( file_header );
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delete vmctx;
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}
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file_header = nullptr;
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image_base = 0u, vm_entry_rva = 0u, module_base = 0u;
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file_path = QFileDialog::getOpenFileName(
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this, tr( "open vmp2 file" ), std::filesystem::current_path().string().c_str(), tr( "vmp2 file (*.vmp2)" ) );
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const auto &_file_path = file_path.toStdString();
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if ( file_path.isEmpty() )
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{
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dbg_msg( "invalid vmp2 file... no file selected..." );
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return;
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}
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if ( !std::filesystem::exists( _file_path ) )
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{
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dbg_msg( "vmp2 file does not exist..." );
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return;
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}
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const auto file_size = std::filesystem::file_size( _file_path );
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if ( !file_size )
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{
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dbg_msg( "invalid vmp2 file size..." );
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return;
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}
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qfile_t open_file( file_path );
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file_header = reinterpret_cast< vmp2::v3::file_header * >( malloc( file_size ) );
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dbg_msg( QString( "loading vmp2 file %1..." ).arg( file_path ) );
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if ( !open_file.open( QIODevice::ReadOnly ) )
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{
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dbg_msg( "failed to open vmp2 file..." );
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return;
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}
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memcpy( file_header, open_file.readAll().data(), file_size );
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if ( !init_data() )
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{
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dbg_msg( "failed to init vmp2 file data..." );
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return;
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}
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update_ui();
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}
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void qvminspector_t::dbg_print( qstring_t dbg_output )
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{
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ui.dbg_output_window->appendPlainText( dbg_output );
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}
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void qvminspector_t::dbg_msg( qstring_t dbg_output )
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{
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QMessageBox MsgBox;
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MsgBox.setText( dbg_output );
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MsgBox.exec();
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dbg_print( dbg_output );
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}
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bool qvminspector_t::init_data()
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{
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if ( file_header->magic != VMP_MAGIC )
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{
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dbg_msg( "invalid magic bytes for vmp2 file...\n" );
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return false;
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}
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dbg_print( "valid magic bytes for vmp2 file...\n" );
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if ( file_header->version != vmp2::version_t::v3 )
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{
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dbg_msg( "invalid vmp2 file version... "
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"this vminspector is compiled for version 3...\n" );
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return false;
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}
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vm_entry_rva = file_header->vm_entry_rva;
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image_base = file_header->image_base;
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module_base = reinterpret_cast< std::uintptr_t >( file_header ) + file_header->module_offset;
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vmctx = new vm::ctx_t( module_base, image_base, image_base, vm_entry_rva );
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first_block = reinterpret_cast< vmp2::v3::code_block_t * >( reinterpret_cast< std::uintptr_t >( file_header ) +
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file_header->code_block_offset );
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dbg_print( "> vm entry displayed below...\n" );
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vm::util::print( vmctx->vm_entry );
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return true;
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}
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void qvminspector_t::update_ui()
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{
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const auto end_code_blocks = reinterpret_cast< std::uintptr_t >( first_block ) +
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( file_header->code_block_count * sizeof vmp2::v3::code_block_t ) +
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file_header->module_size + sizeof vmp2::v3::file_header;
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// for each code block insert their virtual instructions
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// into the virtual instruction tree... also put meta data about the code
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// block above the virtual instructions... if the code block has a JCC (with two branches)
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// then make a child repeating this for loop...
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for ( auto [ code_block, idx ] = std::tuple{ first_block, 0u }; idx < file_header->code_block_count;
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code_block = reinterpret_cast< vmp2::v3::code_block_t * >( reinterpret_cast< std::uintptr_t >( code_block ) +
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code_block->next_block_offset ), ++idx)
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{
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auto blank_entry1 = new qtree_widget_item_t(), blank_entry2 = new qtree_widget_item_t(),
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meta_data_entry = new qtree_widget_item_t();
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dbg_msg( QString( "> number of vinstrs = %1...\n" ).arg( code_block->vinstr_count ) );
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// ui.virt_instrs->addTopLevelItem( blank_entry1 );
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// meta_data_entry->setText()
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}
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}
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