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eof_validation_test.cpp
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// evmone: Fast Ethereum Virtual Machine implementation
// Copyright 2021 The evmone Authors.
// SPDX-License-Identifier: Apache-2.0
#include "eof_validation.hpp"
#include <evmone/constants.hpp>
#include <evmone/eof.hpp>
#include <evmone/instructions_traits.hpp>
#include <gtest/gtest.h>
#include <test/utils/bytecode.hpp>
#include <test/utils/utils.hpp>
using namespace evmone;
using namespace evmone::test;
TEST_F(eof_validation, before_activation)
{
ASSERT_EQ(
evmone::validate_eof(EVMC_CANCUN, ContainerKind::runtime, bytes(eof_bytecode(OP_STOP))),
EOFValidationError::eof_version_unknown);
}
TEST_F(eof_validation, validate_empty_code)
{
add_test_case("", EOFValidationError::invalid_prefix);
}
TEST_F(eof_validation, validate_EOF_prefix)
{
add_test_case("00", EOFValidationError::invalid_prefix);
add_test_case("FE", EOFValidationError::invalid_prefix);
add_test_case("EF", EOFValidationError::invalid_prefix);
add_test_case("EF0101", EOFValidationError::invalid_prefix);
add_test_case("EFEF01", EOFValidationError::invalid_prefix);
add_test_case("EFFF01", EOFValidationError::invalid_prefix);
add_test_case("EF00", EOFValidationError::eof_version_unknown);
add_test_case("EF0001", EOFValidationError::section_headers_not_terminated);
add_test_case("EFFF 01 010004 0200010003 040004 00 00800000 600000 AABBCCDD",
EOFValidationError::invalid_prefix, "valid_except_magic");
}
TEST_F(eof_validation, validate_EOF_version)
{
add_test_case("EF0002", EOFValidationError::eof_version_unknown);
add_test_case("EF00FF", EOFValidationError::eof_version_unknown);
add_test_case("EF0000 010004 0200010003 040004 00 00800000 600000 AABBCCDD",
EOFValidationError::eof_version_unknown, "valid_except_version_00");
add_test_case("EF0002 010004 0200010003 040004 00 00800000 600000 AABBCCDD",
EOFValidationError::eof_version_unknown, "valid_except_version_02");
add_test_case("EF00FF 010004 0200010003 040004 00 00800000 600000 AABBCCDD",
EOFValidationError::eof_version_unknown, "valid_except_version_FF");
}
TEST_F(eof_validation, minimal_valid_EOF1_code)
{
add_test_case(eof_bytecode(OP_INVALID), EOFValidationError::success);
}
TEST_F(eof_validation, minimal_valid_EOF1_code_with_data)
{
add_test_case(eof_bytecode(OP_INVALID).data("DA"), EOFValidationError::success);
}
TEST_F(eof_validation, minimal_valid_EOF1_multiple_code_sections)
{
add_test_case("EF0001 010008 02000200010001 00 00800000 00800000 FE FE",
EOFValidationError::data_section_missing, "no_data_section");
add_test_case(eof_bytecode(jumpf(1)).code(OP_INVALID, 0, 0x80, 0).data("DA"),
EOFValidationError::success, "with_data_section");
add_test_case(eof_bytecode(OP_PUSH0 + callf(1) + OP_STOP, 1)
.code(OP_POP + callf(2) + OP_POP + OP_RETF, 1, 0, 1)
.code(dup1(OP_ADDRESS) + callf(3) + OP_POP + OP_POP + OP_RETF, 0, 1, 3)
.code(bytecode{OP_DUP1} + OP_RETF, 2, 3, 3),
EOFValidationError::success, "non_void_input_output");
}
TEST_F(eof_validation, minimal_valid_EOF1_multiple_container_sections)
{
add_test_case("EF0001 010004 0200010001 0300010001 0300010001 040000 00 00800000 00 00 00",
EOFValidationError::data_section_missing, "no_data_section");
}
TEST_F(eof_validation, EOF1_types_section_missing)
{
add_test_case("EF0001 00", EOFValidationError::type_section_missing);
add_test_case("EF0001 0200010001 00 FE", EOFValidationError::type_section_missing);
add_test_case("EF0001 0200010001 030001 00 FE DA", EOFValidationError::type_section_missing);
add_test_case("EF0001 0200010001 040001 00 FE DA", EOFValidationError::type_section_missing);
add_test_case("EF0001 02000200010001 00 FE FE", EOFValidationError::type_section_missing);
}
TEST_F(eof_validation, EOF1_types_section_0_size)
{
add_test_case("EF0001 010000 0200010001 040000 00 FE", EOFValidationError::zero_section_size);
add_test_case(
"EF0001 010000 0200010001 040001 00 FE DA", EOFValidationError::zero_section_size);
}
TEST_F(eof_validation, EOF1_code_section_missing)
{
add_test_case("EF0001 010004 00", EOFValidationError::code_section_missing);
add_test_case("EF0001 010004 040001 00 00800000 DA", EOFValidationError::code_section_missing);
}
TEST_F(eof_validation, EOF1_code_section_0_size)
{
add_test_case("EF0001 010004 020000 00", EOFValidationError::zero_section_size);
add_test_case("EF0001 010004 020000 040001 00 DA", EOFValidationError::zero_section_size);
}
TEST_F(eof_validation, EOF1_data_section_before_code_section)
{
add_test_case("EF0001 010004 040001 0200010001 00 00800000 AA FE",
EOFValidationError::code_section_missing);
}
TEST_F(eof_validation, EOF1_data_section_before_types_section)
{
add_test_case("EF0001 040001 010004 0200010001 00 AA 00800000 FE",
EOFValidationError::type_section_missing);
}
TEST_F(eof_validation, EOF1_multiple_data_sections)
{
add_test_case("EF0001 010004 0200010001 040001 040001 00 00800000 FE DA DA",
EOFValidationError::header_terminator_missing);
}
TEST_F(eof_validation, EOF1_unknown_section)
{
add_test_case("EF0001 050001 00 FE", EOFValidationError::type_section_missing);
add_test_case("EF0001 FF0001 00 FE", EOFValidationError::type_section_missing);
add_test_case("EF0001 010004 0200010001 050001 00 00800000 FE 00",
EOFValidationError::data_section_missing);
add_test_case("EF0001 010004 0200010001 FF0001 00 00800000 FE 00",
EOFValidationError::data_section_missing);
add_test_case("EF0001 010004 0200010001 040001 050001 00 00800000 FE AA 00",
EOFValidationError::header_terminator_missing);
add_test_case("EF0001 010004 0200010001 040001 FF0001 00 00800000 FE AA 00",
EOFValidationError::header_terminator_missing);
}
TEST_F(eof_validation, EOF1_incomplete_section_size)
{
// TODO: section_headers_not_terminated should rather be incomplete_section_size
// in these examples.
add_test_case("EF0001 0100", EOFValidationError::incomplete_section_size);
add_test_case("EF0001 010004 0200", EOFValidationError::incomplete_section_number);
add_test_case("EF0001 010004 02000100", EOFValidationError::incomplete_section_size);
add_test_case("EF0001 010004 0200010001", EOFValidationError::section_headers_not_terminated);
add_test_case(
"EF0001 010004 0200010001 04", EOFValidationError::section_headers_not_terminated);
add_test_case("EF0001 010004 0200010001 0400", EOFValidationError::incomplete_section_size);
}
TEST_F(eof_validation, EOF1_header_not_terminated)
{
add_test_case("EF0001 01", EOFValidationError::section_headers_not_terminated);
add_test_case("EF0001 010004", EOFValidationError::section_headers_not_terminated);
add_test_case("EF0001 010004 FE", EOFValidationError::code_section_missing);
add_test_case("EF0001 010004 02", EOFValidationError::incomplete_section_number);
add_test_case("EF0001 010004 020001", EOFValidationError::section_headers_not_terminated);
add_test_case(
"EF0001 010004 0200010001 040001", EOFValidationError::section_headers_not_terminated);
add_test_case(
"EF0001 010004 0200010001 040001 FE AA", EOFValidationError::header_terminator_missing);
}
TEST_F(eof_validation, EOF1_truncated_section)
{
add_test_case(
"EF0001 010004 0200010002 040000 00", EOFValidationError::invalid_section_bodies_size);
add_test_case("EF0001 010004 0200010002 040000 00 008000",
EOFValidationError::invalid_section_bodies_size);
add_test_case("EF0001 010004 0200010002 040000 00 00800000 FE",
EOFValidationError::invalid_section_bodies_size);
// Data section may not be truncated in toplevel container
add_test_case(
eof_bytecode(OP_INVALID).data("", 2), EOFValidationError::toplevel_container_truncated);
add_test_case(
eof_bytecode(OP_INVALID).data("aa", 2), EOFValidationError::toplevel_container_truncated);
}
TEST_F(eof_validation, EOF1_code_section_offset)
{
const auto eof = eof_bytecode(jumpf(1)).code(OP_INVALID, 0, 0x80, 0).data("00000000");
add_test_case(eof, EOFValidationError::success);
const auto header = read_valid_eof1_header(bytecode(eof));
ASSERT_EQ(header.code_sizes.size(), 2);
EXPECT_EQ(header.code_sizes[0], 3);
EXPECT_EQ(header.code_sizes[1], 1);
ASSERT_EQ(header.code_offsets.size(), 2);
EXPECT_EQ(header.code_offsets[0], 25);
EXPECT_EQ(header.code_offsets[1], 28);
}
TEST_F(eof_validation, EOF1_trailing_bytes_in_subcontainer)
{
add_test_case(
eof_bytecode(eofcreate() + OP_STOP, 4).container(eof_bytecode(OP_INVALID) + "DEADBEEF"),
EOFValidationError::invalid_section_bodies_size);
add_test_case(eof_bytecode(eofcreate() + OP_STOP, 4)
.container(eof_bytecode(OP_INVALID).data("aabb") + "DEADBEEF"),
EOFValidationError::invalid_section_bodies_size);
}
TEST_F(eof_validation, EOF1_trailing_bytes_top_level)
{
add_test_case("EF0001 010004 0200010001 040000 00 00800000 FE DEADBEEF",
EOFValidationError::invalid_section_bodies_size);
add_test_case("EF0001 010004 0200010001 040002 00 00800000 FE AABB DEADBEEF",
EOFValidationError::invalid_section_bodies_size);
}
TEST_F(eof_validation, EOF1_multiple_type_sections)
{
add_test_case("EF0001 010004 010004 02000200010001 00 00800000 00800000 FE FE",
EOFValidationError::code_section_missing);
// Section order is must be (Types, Code+, Data)
add_test_case("EF0001 030002 010001 010001 040002 00 0000 FE FE 0000",
EOFValidationError::type_section_missing);
}
TEST_F(eof_validation, EOF1_type_section_not_first)
{
add_test_case(
"EF0001 0200010001 010004 00 FE 00800000", EOFValidationError::type_section_missing);
add_test_case(
"EF0001 02000200010001 010004 00 FE FE 00800000", EOFValidationError::type_section_missing);
add_test_case("EF0001 0200010001 010004 040003 00 FE 00800000 AABBCC",
EOFValidationError::type_section_missing);
add_test_case("EF0001 0200010001 040003 010004 00 FE AABBCC 00800000",
EOFValidationError::type_section_missing);
}
TEST_F(eof_validation, EOF1_invalid_type_section_size)
{
add_test_case(
"EF0001 010001 0200010001 040000 00 00 FE", EOFValidationError::invalid_type_section_size);
add_test_case("EF0001 010002 0200010001 040000 00 0080 FE",
EOFValidationError::invalid_type_section_size);
add_test_case("EF0001 010008 0200010001 040000 00 0080000000000000 FE",
EOFValidationError::invalid_type_section_size);
add_test_case("EF0001 010008 020003000100010001 040000 00 0080000000800000 FE FE FE",
EOFValidationError::invalid_type_section_size);
add_test_case(
"EF0001 010010 020003000100010001 040000 00 00800000008000000080000000800000 FE FE FE",
EOFValidationError::invalid_type_section_size);
}
TEST_F(eof_validation, EOF1_invalid_section_0_type)
{
add_test_case("EF0001 010004 0200010002 040000 00 00000000 5FE4",
EOFValidationError::invalid_first_section_type);
add_test_case("EF0001 010004 0200010003 040000 00 00010000 60005C",
EOFValidationError::invalid_first_section_type);
add_test_case("EF0001 010004 0200010002 040000 00 007F0000 5FE4",
EOFValidationError::invalid_first_section_type);
add_test_case("EF0001 010004 0200010002 040000 00 00810000 5FE4",
EOFValidationError::invalid_first_section_type);
add_test_case("EF0001 010004 0200010002 040000 00 00FF0000 5FE4",
EOFValidationError::invalid_first_section_type);
add_test_case("EF0001 010004 0200010002 040000 00 01800000 50E4",
EOFValidationError::invalid_first_section_type);
add_test_case("EF0001 010004 0200010003 040000 00 02030000 60005C",
EOFValidationError::invalid_first_section_type);
add_test_case("EF0001 010004 0200010002 040000 00 80800000 50E4",
EOFValidationError::invalid_first_section_type);
add_test_case("EF0001 010004 0200010002 040000 00 FF800000 50E4",
EOFValidationError::invalid_first_section_type);
}
TEST_F(eof_validation, EOF1_too_many_code_sections)
{
auto eof_code_sections_1023 = eof_bytecode(jumpf(1));
for (int i = 1; i < 1022; ++i)
eof_code_sections_1023 =
eof_code_sections_1023.code(jumpf(static_cast<uint16_t>(i + 1)), 0, 0x80, 0);
auto eof_code_sections_1024 = eof_code_sections_1023;
eof_code_sections_1023 = eof_code_sections_1023.code(OP_STOP, 0, 0x80, 0);
eof_code_sections_1024 = eof_code_sections_1024.code(jumpf(1023), 0, 0x80, 0);
auto eof_code_sections_1025 = eof_code_sections_1024;
eof_code_sections_1024 = eof_code_sections_1024.code(OP_STOP, 0, 0x80, 0);
eof_code_sections_1025 =
eof_code_sections_1025.code(jumpf(1024), 0, 0x80, 0).code(OP_STOP, 0, 0x80, 0);
add_test_case(eof_code_sections_1023, EOFValidationError::success, "valid_1023");
add_test_case(eof_code_sections_1024, EOFValidationError::success, "valid_1024");
add_test_case(
eof_code_sections_1025, EOFValidationError::too_many_code_sections, "invalid_1025");
}
TEST_F(eof_validation, EOF1_undefined_opcodes)
{
const auto& gas_table = evmone::instr::gas_costs[EVMC_OSAKA];
for (uint16_t opcode = 0; opcode <= 0xff; ++opcode)
{
// PUSH*, DUPN, SWAPN, RJUMP*, CALLF, JUMPF, EOFCREATE, RETRUNCONTRACT require immediate
// argument to be valid, checked in a separate test.
if ((opcode >= OP_PUSH1 && opcode <= OP_PUSH32) || opcode == OP_DUPN ||
opcode == OP_SWAPN || opcode == OP_EXCHANGE || opcode == OP_RJUMP ||
opcode == OP_RJUMPI || opcode == OP_CALLF || opcode == OP_RJUMPV ||
opcode == OP_DATALOADN || opcode == OP_JUMPF || opcode == OP_EOFCREATE ||
opcode == OP_RETURNCONTRACT)
continue;
// These opcodes are deprecated since Osaka.
// gas_cost table current implementation does not allow to undef instructions.
if (opcode == OP_JUMP || opcode == OP_JUMPI || opcode == OP_PC || opcode == OP_CALLCODE ||
opcode == OP_SELFDESTRUCT || opcode == OP_CALL || opcode == OP_STATICCALL ||
opcode == OP_DELEGATECALL || opcode == OP_CREATE || opcode == OP_CREATE2 ||
opcode == OP_CODESIZE || opcode == OP_CODECOPY || opcode == OP_EXTCODESIZE ||
opcode == OP_EXTCODECOPY || opcode == OP_EXTCODEHASH || opcode == OP_GAS)
continue;
const auto expected = (gas_table[opcode] == evmone::instr::undefined ?
EOFValidationError::undefined_instruction :
EOFValidationError::success);
if (opcode == OP_RETF)
{
// RETF can be tested in 2nd code section.
add_test_case(eof_bytecode(callf(1) + OP_STOP).code(OP_RETF, 0, 0, 0), expected);
}
else
{
auto op_stack_change = instr::traits[opcode].stack_height_change;
auto code = push(1) + 16 * OP_DUP1 + Opcode{static_cast<uint8_t>(opcode)};
if (!instr::traits[opcode].is_terminating)
code += bytecode{OP_STOP};
add_test_case(
eof_bytecode(code, static_cast<uint16_t>(std::max(17, 17 + op_stack_change))),
expected);
}
}
add_test_case(eof_bytecode(OP_INVALID), EOFValidationError::success);
}
TEST_F(eof_validation, EOF1_truncated_push)
{
for (uint8_t opcode = OP_PUSH1; opcode <= OP_PUSH32; ++opcode)
{
const auto required_bytes = static_cast<size_t>(opcode) - OP_PUSH1 + 1;
for (size_t i = 0; i < required_bytes; ++i)
{
auto eof_header = "EF0001 010004 0200010001 040000 00 00800000"_hex;
auto& code_size_byte = eof_header[10];
const bytes code{opcode + bytes(i, 0)};
code_size_byte = static_cast<uint8_t>(code.size());
const auto container = eof_header + code;
add_test_case(container, EOFValidationError::truncated_instruction);
}
const auto container = eof_bytecode(opcode + bytes(required_bytes, 0) + OP_STOP,
static_cast<uint8_t>(instr::traits[opcode].stack_height_change));
add_test_case(container, EOFValidationError::success);
}
}
TEST_F(eof_validation, EOF1_valid_rjump)
{
// offset = 0
add_test_case(eof_bytecode(rjump(0) + OP_STOP), EOFValidationError::success, "offset_zero");
// offset = 3
add_test_case(
eof_bytecode(
rjumpi(5, OP_PUSH0) + OP_PUSH0 + OP_PUSH0 + rjump(3) + OP_PUSH0 + push(1) + OP_STOP, 2),
EOFValidationError::success, "offset_positive");
// offset = -4
add_test_case(
eof_bytecode(OP_JUMPDEST + rjump(-4)), EOFValidationError::success, "offset_negative");
}
TEST_F(eof_validation, EOF1_valid_rjumpi)
{
// offset = 0
add_test_case(
eof_bytecode(rjumpi(0, 0) + OP_STOP, 1), EOFValidationError::success, "offset_zero");
// offset = 3
add_test_case(eof_bytecode(rjumpi(3, 0) + OP_JUMPDEST + OP_JUMPDEST + OP_JUMPDEST + OP_STOP, 1),
EOFValidationError::success, "offset_positive");
// offset = -5
add_test_case(
eof_bytecode(rjumpi(-5, 0) + OP_STOP, 1), EOFValidationError::success, "offset_negative");
}
TEST_F(eof_validation, EOF1_valid_rjumpv)
{
// table = [0] case = 0
add_test_case(eof_bytecode(rjumpv({0}, 0) + push(1) + OP_STOP, 1), EOFValidationError::success,
"single_entry_case_0");
// table = [0,3] case = 0
add_test_case(eof_bytecode(rjumpv({0, 3}, 0) + push(1) + OP_STOP + push(2) + OP_STOP, 1),
EOFValidationError::success, "two_entries_case_0");
// table = [0,3] case = 2
add_test_case(eof_bytecode(rjumpv({0, 3}, 2) + push(1) + OP_STOP + push(2) + OP_STOP, 1),
EOFValidationError::success, "two_entries_case_2");
// table = [0,3,-10] case = 2
add_test_case(eof_bytecode(rjumpv({0, 3, -10}, 2) + push(1) + OP_STOP + push(2) + OP_STOP, 1),
EOFValidationError::success, "three_entries_case_2");
}
TEST_F(eof_validation, EOF1_rjump_truncated)
{
add_test_case("EF0001 010004 0200010001 040000 00 00800000 E0",
EOFValidationError::truncated_instruction);
add_test_case("EF0001 010004 0200010002 040000 00 00800000 E000",
EOFValidationError::truncated_instruction);
}
TEST_F(eof_validation, EOF1_rjumpi_truncated)
{
add_test_case("EF0001 010004 0200010003 040000 00 00800000 6000E1",
EOFValidationError::truncated_instruction);
add_test_case("EF0001 010004 0200010004 040000 00 00800000 6000E100",
EOFValidationError::truncated_instruction);
}
TEST_F(eof_validation, EOF1_rjumpv_truncated)
{
// table = [0] case = 0
add_test_case("EF0001 010004 0200010005 040000 00 00800000 6000E20000",
EOFValidationError::truncated_instruction);
// table = [0,3] case = 0
add_test_case("EF0001 010004 0200010007 040000 00 00800000 6000E201000000",
EOFValidationError::truncated_instruction);
// table = [0,3] case = 2
add_test_case("EF0001 010004 0200010006 040000 00 00800000 6002E2010000",
EOFValidationError::truncated_instruction);
// table = [0,3,-10] case = 2
add_test_case("EF0001 010004 0200010009 040000 00 00800000 6002E20200000003FF",
EOFValidationError::truncated_instruction);
}
TEST_F(eof_validation, EOF1_rjump_invalid_destination)
{
// Into header (offset = -5)
add_test_case(eof_bytecode(rjump(-5) + OP_STOP), EOFValidationError::invalid_rjump_destination);
// To before code begin (offset = -13)
add_test_case(
eof_bytecode(rjump(-23) + OP_STOP), EOFValidationError::invalid_rjump_destination);
// To after code end (offset = 2)
add_test_case(eof_bytecode(rjump(2) + OP_STOP), EOFValidationError::invalid_rjump_destination);
// To code end (offset = 1)
add_test_case(eof_bytecode(rjump(1) + OP_STOP), EOFValidationError::invalid_rjump_destination);
// To the same RJUMP immediate (offset = -1)
add_test_case(eof_bytecode(rjump(-1) + OP_STOP), EOFValidationError::invalid_rjump_destination);
// To PUSH immediate (offset = -4)
add_test_case(
eof_bytecode(push(0) + rjump(-4) + OP_STOP), EOFValidationError::invalid_rjump_destination);
// To EOFCREATE immediate
const auto embedded = eof_bytecode(bytecode{OP_INVALID});
add_test_case(
eof_bytecode(rjump(9) + 0 + 0xff + 0 + 0 + OP_EOFCREATE + Opcode{0} + OP_POP + OP_STOP, 4)
.container(embedded),
EOFValidationError::invalid_rjump_destination);
// To RETURNCONTRACT immediate
add_test_case(
eof_bytecode(rjump(5) + 0 + 0 + OP_RETURNCONTRACT + Opcode{0}, 2).container(embedded),
ContainerKind::initcode, EOFValidationError::invalid_rjump_destination);
}
TEST_F(eof_validation, EOF1_rjumpi_invalid_destination)
{
// Into header (offset = -7)
add_test_case(
eof_bytecode(rjumpi(-7, 0) + OP_STOP, 1), EOFValidationError::invalid_rjump_destination);
// To before code begin (offset = -15)
add_test_case(
eof_bytecode(rjumpi(-25, 0) + OP_STOP, 1), EOFValidationError::invalid_rjump_destination);
// To after code end (offset = 2)
add_test_case(
eof_bytecode(rjumpi(2, 0) + OP_STOP, 1), EOFValidationError::invalid_rjump_destination);
// To code end (offset = 1)
add_test_case(
eof_bytecode(rjumpi(1, 0) + OP_STOP, 1), EOFValidationError::invalid_rjump_destination);
// To the same RJUMPI immediate (offset = -1)
add_test_case(
eof_bytecode(rjumpi(-1, 0) + OP_STOP, 1), EOFValidationError::invalid_rjump_destination);
// To PUSH immediate (offset = -4)
add_test_case(
eof_bytecode(rjumpi(-4, 0) + OP_STOP, 1), EOFValidationError::invalid_rjump_destination);
// To EOFCREATE immediate
const auto embedded = eof_bytecode(bytecode{OP_INVALID});
add_test_case(
eof_bytecode(
rjumpi(9, 0) + 0 + 0xff + 0 + 0 + OP_EOFCREATE + Opcode{0} + OP_POP + OP_STOP, 4)
.container(embedded),
EOFValidationError::invalid_rjump_destination);
// To RETURNCONTRACT immediate
add_test_case(
eof_bytecode(rjumpi(5, 0) + 0 + 0 + OP_RETURNCONTRACT + Opcode{0}, 2).container(embedded),
ContainerKind::initcode, EOFValidationError::invalid_rjump_destination);
}
TEST_F(eof_validation, EOF1_rjumpv_invalid_destination)
{
// table = [-25] case = 0
add_test_case(eof_bytecode(rjumpv({-25}, 0) + push(1) + OP_STOP, 1),
EOFValidationError::invalid_rjump_destination);
// table = [-8] case = 0
add_test_case(eof_bytecode(rjumpv({-8}, 0) + push(1) + OP_STOP, 1),
EOFValidationError::invalid_rjump_destination);
// table = [-1] case = 0
add_test_case(eof_bytecode(rjumpv({-1}, 0) + push(1) + OP_STOP, 1),
EOFValidationError::invalid_rjump_destination);
// table = [3] case = 0
add_test_case(eof_bytecode(rjumpv({3}, 0) + push(1) + OP_STOP, 1),
EOFValidationError::invalid_rjump_destination);
// table = [4] case = 0
add_test_case(eof_bytecode(rjumpv({4}, 0) + push(1) + OP_STOP, 1),
EOFValidationError::invalid_rjump_destination);
// table = [0,3,-30] case = 2
add_test_case(eof_bytecode(rjumpv({0, 3, -30}, 2) + push(1) + OP_STOP + push(2) + OP_STOP, 1),
EOFValidationError::invalid_rjump_destination);
// table = [0,3,-12] case = 2
add_test_case(eof_bytecode(rjumpv({0, 3, -12}, 2) + push(1) + OP_STOP + push(2) + OP_STOP, 1),
EOFValidationError::invalid_rjump_destination);
// table = [0,3,-1] case = 2
add_test_case(eof_bytecode(rjumpv({0, 3, -1}, 2) + push(1) + OP_STOP + push(2) + OP_STOP, 1),
EOFValidationError::invalid_rjump_destination);
// table = [0,3,6] case = 2
add_test_case(eof_bytecode(rjumpv({0, 3, 6}, 2) + push(1) + OP_STOP + push(2) + OP_STOP, 1),
EOFValidationError::invalid_rjump_destination);
// table = [0,3,7] case = 2
add_test_case(eof_bytecode(rjumpv({0, 3, 7}, 2) + push(1) + OP_STOP + push(2) + OP_STOP, 1),
EOFValidationError::invalid_rjump_destination);
// To EOFCREATE immediate
const auto embedded = eof_bytecode(bytecode{OP_INVALID});
add_test_case(
eof_bytecode(
rjumpv({9}, 0) + 0 + 0xff + 0 + 0 + OP_EOFCREATE + Opcode{0} + OP_POP + OP_STOP, 4)
.container(embedded),
EOFValidationError::invalid_rjump_destination);
// To RETURNCONTRACT immediate
add_test_case(
eof_bytecode(rjumpv({5}, 0) + 0 + 0 + OP_RETURNCONTRACT + Opcode{0}, 2).container(embedded),
ContainerKind::initcode, EOFValidationError::invalid_rjump_destination);
}
TEST_F(eof_validation, EOF1_section_order)
{
// 01 02 04
add_test_case("EF0001 010004 0200010006 040002 00 00800001 6000E0000000 AABB",
EOFValidationError::success);
// 01 04 02
add_test_case("EF0001 010004 040002 0200010006 00 00800000 AABB 6000E0000000",
EOFValidationError::code_section_missing);
// 02 01 04
add_test_case("EF0001 0200010006 010004 040002 00 6000E0000000 00800000 AABB",
EOFValidationError::type_section_missing);
// 02 04 01
add_test_case("EF0001 0200010006 040002 010004 00 6000E0000000 AABB 00800000",
EOFValidationError::type_section_missing);
// 04 01 02
add_test_case("EF0001 040002 010004 0200010006 00 AABB 00800000 6000E0000000",
EOFValidationError::type_section_missing);
// 04 02 01
add_test_case("EF0001 040002 0200010006 010004 00 AABB 6000E0000000 00800000",
EOFValidationError::type_section_missing);
// 01 02 03 04
add_test_case(
"EF0001 010004 0200010007 0300010014 040002 00 00800004 5F5F5F5FEC0000 "
"EF000101000402000100010400000000800000FE AABB",
EOFValidationError::success);
// 03 01 02 04
add_test_case(
"EF0001 0300010014 010004 0200010007 040002 00 EF000101000402000100010400000000800000FE "
"00800004 5F5F5F5FEC0000 AABB",
EOFValidationError::type_section_missing);
// 01 03 02 04
add_test_case(
"EF0001 010004 0300010014 0200010007 040002 00 00800004 "
"EF000101000402000100010400000000800000FE 5F5F5F5FEC0000 AABB",
EOFValidationError::code_section_missing);
// 01 02 04 03
add_test_case(
"EF0001 010004 0200010007 040002 0300010014 00 00800004 5F5F5F5FEC0000 AABB "
"EF000101000402000100010400000000800000FE",
EOFValidationError::header_terminator_missing);
}
TEST_F(eof_validation, deprecated_instructions)
{
for (auto op : {OP_CALLCODE, OP_SELFDESTRUCT, OP_JUMP, OP_JUMPI, OP_PC, OP_CALL, OP_STATICCALL,
OP_DELEGATECALL, OP_CREATE, OP_CREATE2, OP_CODESIZE, OP_CODECOPY, OP_EXTCODESIZE,
OP_EXTCODECOPY, OP_EXTCODEHASH, OP_GAS})
add_test_case(eof_bytecode(op), EOFValidationError::undefined_instruction);
}
TEST_F(eof_validation, max_arguments_count)
{
add_test_case(
eof_bytecode(127 * push0() + callf(1) + OP_STOP, 127).code(OP_RETF, 127, 127, 127),
EOFValidationError::success);
add_test_case(eof_bytecode(callf(1) + OP_STOP, 0).code(OP_RETF, 128, 128, 128),
EOFValidationError::inputs_outputs_num_above_limit);
add_test_case(eof_bytecode(callf(1) + OP_STOP, 127).code(127 * push(1) + OP_RETF, 0, 127, 127),
EOFValidationError::success);
add_test_case(eof_bytecode(callf(1) + OP_STOP, 129).code(129 * push(1) + OP_RETF, 0, 129, 129),
EOFValidationError::inputs_outputs_num_above_limit);
add_test_case(eof_bytecode(127 * push0() + callf(1) + OP_STOP, 127)
.code(127 * OP_POP + OP_RETF, 127, 0, 127),
EOFValidationError::success);
add_test_case(eof_bytecode(128 * push(1) + callf(1) + OP_STOP, 128)
.code(128 * OP_POP + OP_RETF, 128, 0, 128),
EOFValidationError::inputs_outputs_num_above_limit);
}
TEST_F(eof_validation, max_stack_height)
{
add_test_case(eof_bytecode(callf(1) + OP_STOP, 0)
.code(0x3FF * push(1) + 0x3FF * OP_POP + OP_RETF, 0, 0, 1023),
EOFValidationError::success);
add_test_case(eof_bytecode(1023 * push(1) + 1023 * OP_POP + callf(1) + OP_STOP, 1023)
.code(OP_RETF, 0, 0, 0),
EOFValidationError::success);
add_test_case(eof_bytecode(1024 * push(1) + OP_STOP, 1024),
EOFValidationError::max_stack_height_above_limit);
add_test_case(eof_bytecode(0x400 * push(1) + callf(1) + 0x400 * OP_POP + OP_STOP, 1024)
.code(OP_RETF, 0, 0, 0),
EOFValidationError::max_stack_height_above_limit);
add_test_case(eof_bytecode(callf(1) + OP_STOP, 0)
.code(0x400 * push(1) + 0x400 * OP_POP + OP_RETF, 0, 0, 1023),
EOFValidationError::invalid_max_stack_height);
add_test_case(eof_bytecode(1024 * push(1) + callf(1) + 1024 * OP_POP + OP_STOP, 1023)
.code(OP_RETF, 0, 0, 0),
EOFValidationError::invalid_max_stack_height);
add_test_case(eof_bytecode(rjumpi(2, 0) + 1 + OP_STOP, 1), EOFValidationError::success);
add_test_case(
eof_bytecode(rjumpi(-3, 0) + OP_STOP, 1), EOFValidationError::stack_height_mismatch);
add_test_case(
eof_bytecode(rjumpv({-4}, 0) + OP_STOP, 1), EOFValidationError::stack_height_mismatch);
}
TEST_F(eof_validation, EOF1_callf_truncated)
{
add_test_case("EF0001 010004 0200010001 040000 00 00800000 E3",
EOFValidationError::truncated_instruction);
add_test_case("EF0001 010004 0200010002 040000 00 00800000 E300",
EOFValidationError::truncated_instruction);
}
TEST_F(eof_validation, callf_invalid_code_section_index)
{
add_test_case(eof_bytecode(callf(1) + OP_STOP), EOFValidationError::invalid_code_section_index);
}
TEST_F(eof_validation, incomplete_section_size)
{
add_test_case("ef0001 010100 02003f 0100", EOFValidationError::incomplete_section_size);
}
TEST_F(eof_validation, data_section_missing)
{
add_test_case(
"ef0001 010004 0200010001 00 00800000 fe", EOFValidationError::data_section_missing);
}
TEST_F(eof_validation, multiple_code_sections_headers)
{
add_test_case(
"0xef0001 010008 020001 0004 020001 0005 040000 00 00800000 045c0000 00405c00 00002e0005",
EOFValidationError::data_section_missing);
}
TEST_F(eof_validation, dataloadn_valid)
{
// DATALOADN{0}
add_test_case(eof_bytecode(dataloadn(0) + OP_POP + OP_STOP, 1)
.data("0000000000000000111111111111111122222222222222223333333333333333"),
EOFValidationError::success);
// DATALOADN{1}
add_test_case(eof_bytecode(dataloadn(1) + OP_POP + OP_STOP, 1)
.data("000000000000000011111111111111112222222222222222333333333333333344"),
EOFValidationError::success);
// DATALOADN{32}
add_test_case(eof_bytecode(dataloadn(32) + OP_POP + OP_STOP, 1)
.data("0000000000000000111111111111111122222222222222223333333333333333"
"0000000000000000111111111111111122222222222222223333333333333333"),
EOFValidationError::success);
}
TEST_F(eof_validation, dataloadn_invalid)
{
// Truncated DATALOADN
add_test_case("EF0001 010004 0200010001 040000 00 00800000 D1",
EOFValidationError::truncated_instruction);
add_test_case("EF0001 010004 0200010002 040000 00 00800000 D100",
EOFValidationError::truncated_instruction);
// DATALOADN{0} - no data section
add_test_case(eof_bytecode(dataloadn(0) + OP_POP + OP_STOP, 1),
EOFValidationError::invalid_dataloadn_index);
// DATALOADN{1} - out of data section bounds
add_test_case(eof_bytecode(dataloadn(1) + OP_POP + OP_STOP, 1).data("00"),
EOFValidationError::invalid_dataloadn_index);
// DATALOADN{32} - out of data section bounds
add_test_case(eof_bytecode(dataloadn(32) + OP_POP + OP_STOP, 1)
.data("0000000000000000111111111111111122222222222222223333333333333333"),
EOFValidationError::invalid_dataloadn_index);
// DATALOADN{uint16_max} - out of data section bounds
add_test_case(eof_bytecode(dataloadn(0xffff) + OP_POP + OP_STOP, 1)
.data("0000000000000000111111111111111122222222222222223333333333333333"),
EOFValidationError::invalid_dataloadn_index);
// DATALOADN{32} - truncated word
add_test_case(eof_bytecode(dataloadn(32) + OP_POP + OP_STOP, 1)
.data("0000000000000000111111111111111122222222222222223333333333333333 "
"00000000000000001111111111111111222222222222222233333333333333"),
EOFValidationError::invalid_dataloadn_index);
}
TEST_F(eof_validation, non_returning_status)
{
// Non-returning with no JUMPF and no RETF
add_test_case(eof_bytecode(OP_STOP), EOFValidationError::success);
// Non-returning with JUMPF
add_test_case(eof_bytecode(jumpf(1)).code(OP_STOP, 0, 0x80, 0), EOFValidationError::success);
// Returning with RETF
add_test_case(
eof_bytecode(callf(1) + OP_STOP).code(OP_RETF, 0, 0, 0), EOFValidationError::success);
// Returning with JUMPF
add_test_case(eof_bytecode(callf(1) + OP_STOP).code(jumpf(2), 0, 0, 0).code(OP_RETF, 0, 0, 0),
EOFValidationError::success);
// Returning with JUMPF to returning and RETF
add_test_case(eof_bytecode(OP_PUSH0 + callf(1) + OP_STOP, 1)
.code(bytecode{OP_RJUMPI} + "0001" + OP_RETF + jumpf(2), 1, 0, 1)
.code(OP_RETF, 0, 0, 0),
EOFValidationError::success);
// Returning with JUMPF to non-returning and RETF
add_test_case(eof_bytecode(OP_PUSH0 + callf(1) + OP_STOP, 1)
.code(bytecode{OP_RJUMPI} + "0001" + OP_RETF + jumpf(0), 1, 0, 1),
EOFValidationError::success);
// Invalid with RETF
add_test_case(eof_bytecode(jumpf(1)).code(OP_RETF, 0, 0x80, 0),
EOFValidationError::invalid_non_returning_flag);
add_test_case(eof_bytecode(OP_RETF), EOFValidationError::invalid_non_returning_flag);
// Invalid with JUMPF to returning
add_test_case(eof_bytecode(jumpf(1)).code(jumpf(2), 0, 0x80, 0).code(OP_RETF, 0, 0, 0),
EOFValidationError::invalid_non_returning_flag);
// Invalid with JUMPF to non-returning
add_test_case(eof_bytecode(jumpf(1)).code(jumpf(0), 0, 0, 0),
EOFValidationError::invalid_non_returning_flag);
// Invalid with JUMPF to returning and RETF
add_test_case(eof_bytecode(OP_PUSH0 + jumpf(1), 1)
.code(bytecode{OP_RJUMPI} + "0001" + OP_RETF + jumpf(2), 1, 0x80, 1)
.code(OP_RETF, 0, 0, 0),
EOFValidationError::invalid_non_returning_flag);
// Invalid with JUMPF to non-returning and RETF
add_test_case(eof_bytecode(OP_PUSH0 + jumpf(1), 1)
.code(bytecode{OP_RJUMPI} + "0001" + OP_RETF + jumpf(0), 1, 0x80, 1),
EOFValidationError::invalid_non_returning_flag);
// Circular JUMPF: can be both returning and non-returning
add_test_case(eof_bytecode(jumpf(1)).code(jumpf(2), 0, 0x80, 0).code(jumpf(1), 0, 0x80, 0),
EOFValidationError::success);
add_test_case(eof_bytecode(callf(1) + OP_STOP).code(jumpf(2), 0, 0, 0).code(jumpf(1), 0, 0, 0),
EOFValidationError::success);
}
TEST_F(eof_validation, callf_into_nonreturning)
{
// function 0: (0, non-returning) : CALLF{1} STOP
// function 2: (1, non-returning) : STOP
add_test_case(eof_bytecode(callf(1) + OP_STOP).code(OP_STOP, 0, 0x80, 0),
EOFValidationError::callf_to_non_returning_function);
}
TEST_F(eof_validation, jumpf_equal_outputs)
{
add_test_case(eof_bytecode(callf(1) + OP_STOP, 3)
.code(jumpf(2), 0, 3, 0)
.code(3 * OP_PUSH0 + OP_RETF, 0, 3, 3),
EOFValidationError::success);
}
TEST_F(eof_validation, jumpf_compatible_outputs)
{
add_test_case(eof_bytecode(callf(1) + OP_STOP, 5)
.code(2 * OP_PUSH0 + jumpf(2), 0, 5, 2)
.code(3 * OP_PUSH0 + OP_RETF, 0, 3, 3),
EOFValidationError::success);
}
TEST_F(eof_validation, jumpf_incompatible_outputs)
{
const auto code = eof_bytecode(callf(1) + OP_STOP, 3)
.code(jumpf(2), 0, 3, 0)
.code(5 * OP_PUSH0 + OP_RETF, 0, 5, 3);
add_test_case(code, EOFValidationError::jumpf_destination_incompatible_outputs);
}
TEST_F(eof_validation, unreachable_code_sections)
{
add_test_case(eof_bytecode(OP_INVALID).code(OP_INVALID, 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID).code(jumpf(1), 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID).code(callf(1) + OP_STOP, 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID).code(jumpf(0), 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID).code(callf(0) + OP_STOP, 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID).code(callf(1) + jumpf(0), 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID)
.code(OP_STOP, 0, 0x80, 0)
.code(jumpf(1), 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID)
.code(OP_STOP, 0, 0x80, 0)
.code(callf(1) + OP_STOP, 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID)
.code(jumpf(2), 0, 0x80, 0)
.code(jumpf(1), 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID)
.code(callf(2) + OP_STOP, 0, 0x80, 0)
.code(callf(1) + OP_STOP, 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID)
.code(callf(2) + OP_RETF, 0, 0, 0)
.code(callf(1) + OP_RETF, 0, 0, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(OP_INVALID)
.code(callf(2) + OP_STOP, 0, 0x80, 0)
.code(callf(1) + OP_RETF, 0, 0, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(callf(1) + OP_STOP)
.code(OP_RETF, 0, 0, 0)
.code(OP_INVALID, 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(callf(2) + OP_STOP)
.code(OP_INVALID, 0, 0x80, 0)
.code(OP_RETF, 0, 0, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(callf(3) + OP_STOP)
.code(OP_INVALID, 0, 0x80, 0)
.code(OP_RETF, 0, 0, 0)
.code(callf(2) + OP_RETF, 0, 0, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(jumpf(1))
.code(OP_STOP, 0, 0x80, 0)
.code(OP_RETF, 0, 0, 0),
EOFValidationError::unreachable_code_sections);
{
auto unreachable2_255 = eof_bytecode(jumpf(1)).code(jumpf(1), 0, 0x80, 0);
for (int i = 3; i < 255; ++i)
{
unreachable2_255.code(jumpf(static_cast<uint16_t>(i)), 0, 0x80, 0);
}
unreachable2_255.code(OP_STOP, 0, 0x80, 0);
auto unreachable255 = eof_bytecode(jumpf(1));
for (int i = 2; i < 255; ++i)
{
unreachable255.code(jumpf(static_cast<uint16_t>(i)), 0, 0x80, 0);
}
unreachable255.code(jumpf(254), 0, 0x80, 0).code(OP_STOP, 0, 0x80, 0);
add_test_case(unreachable2_255, EOFValidationError::unreachable_code_sections);
add_test_case(unreachable255, EOFValidationError::unreachable_code_sections);
}
add_test_case(eof_bytecode(callf(1) + OP_STOP, 0)
.code(bytecode{"5B"} + OP_RETF, 0, 0, 0)
.code(bytecode{"FE"}, 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(callf(2) + OP_STOP, 0)
.code(bytecode{"FE"}, 0, 0x80, 0)
.code(bytecode{"5B"} + OP_RETF, 0, 0, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(callf(3) + OP_STOP, 0)
.code(bytecode{"FE"}, 0, 0x80, 0)
.code(bytecode{"5B"} + OP_RETF, 0, 0, 0)
.code(callf(2) + OP_RETF, 0, 0, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(jumpf(0)).code(jumpf(1), 0, 0x80, 0),
EOFValidationError::unreachable_code_sections);
add_test_case(eof_bytecode(jumpf(1))
.code(bytecode{OP_STOP}, 0, 0x80, 0)
.code(bytecode{"5B"} + OP_RETF, 0, 0, 0),
EOFValidationError::unreachable_code_sections);
{
auto code_sections_256_err_001 = eof_bytecode(jumpf(1)).code(jumpf(1), 0, 0x80, 0);
auto code_sections_256_err_254 = eof_bytecode(jumpf(1)).code(jumpf(2), 0, 0x80, 0);
for (int i = 2; i < 254; ++i)