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54 lines
2.6 KiB
54 lines
2.6 KiB
3 years ago
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#include <devirt_utils.hpp>
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namespace devirt
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{
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namespace util
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{
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bool serialize_vmp2(
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std::vector< std::pair< std::uint32_t, std::vector< vm::instrs::code_block_t > > > &virt_rtns,
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std::vector< std::uint8_t > &vmp2file )
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{
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const auto file_header = reinterpret_cast< vmp2::v4::file_header * >( vmp2file.data() );
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if ( file_header->version != vmp2::version_t::v4 )
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{
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std::printf( "[!] invalid vmp2 file version... this build uses v3...\n" );
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return false;
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}
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auto first_rtn = reinterpret_cast< vmp2::v4::rtn_t * >( reinterpret_cast< std::uintptr_t >( file_header ) +
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file_header->rtn_offset );
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for ( auto [ rtn_block, rtn_idx ] = std::pair{ first_rtn, 0ull }; rtn_idx < file_header->rtn_count;
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++rtn_idx, rtn_block = reinterpret_cast< vmp2::v4::rtn_t * >(
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reinterpret_cast< std::uintptr_t >( rtn_block ) + rtn_block->size ) )
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{
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virt_rtns.push_back( { rtn_block->vm_enter_offset, {} } );
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for ( auto [ code_block, block_idx ] = std::pair{ &rtn_block->code_blocks[ 0 ], 0ull };
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block_idx < rtn_block->code_block_count;
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++block_idx, code_block = reinterpret_cast< vmp2::v4::code_block_t * >(
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reinterpret_cast< std::uintptr_t >( code_block ) +
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code_block->next_block_offset ) )
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{
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auto block_vinstrs = reinterpret_cast< vm::instrs::virt_instr_t * >(
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reinterpret_cast< std::uintptr_t >( code_block ) + sizeof vmp2::v4::code_block_t +
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( code_block->num_block_addrs * 8 ) );
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vm::instrs::code_block_t _code_block{ code_block->vip_begin };
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_code_block.jcc.has_jcc = code_block->has_jcc;
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_code_block.jcc.type = code_block->jcc_type;
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for ( auto idx = 0u; idx < code_block->num_block_addrs; ++idx )
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_code_block.jcc.block_addr.push_back( code_block->branch_addr[ idx ] );
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for ( auto idx = 0u; idx < code_block->vinstr_count; ++idx )
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_code_block.vinstrs.push_back( block_vinstrs[ idx ] );
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virt_rtns.back().second.push_back( _code_block );
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}
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}
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return true;
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}
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} // namespace util
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} // namespace devirt
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