forked from cerc-io/plugeth
tests/fuzzers/abi: better test generation (#22158)
* tests/fuzzers/abi: better test generation * tests/fuzzers/abi: fixed packing issue * oss-fuzz: enable abi fuzzer
This commit is contained in:
Marius van der Wijden
GitHub
parent
034ecc3210
commit
398182284c
@ -100,6 +100,7 @@ compile_fuzzer tests/fuzzers/rlp Fuzz fuzzRlp
|
||||
compile_fuzzer tests/fuzzers/trie Fuzz fuzzTrie
|
||||
compile_fuzzer tests/fuzzers/stacktrie Fuzz fuzzStackTrie
|
||||
compile_fuzzer tests/fuzzers/difficulty Fuzz fuzzDifficulty
|
||||
compile_fuzzertests/fuzzers/abi Fuzz fuzzAbi
|
||||
|
||||
compile_fuzzer tests/fuzzers/bls12381 FuzzG1Add fuzz_g1_add
|
||||
compile_fuzzer tests/fuzzers/bls12381 FuzzG1Mul fuzz_g1_mul
|
||||
@ -113,8 +114,3 @@ compile_fuzzer tests/fuzzers/bls12381 FuzzMapG2 fuzz_map_g2
|
||||
|
||||
#TODO: move this to tests/fuzzers, if possible
|
||||
compile_fuzzer crypto/blake2b Fuzz fuzzBlake2b
|
||||
|
||||
|
||||
# This doesn't work very well @TODO
|
||||
#compile_fuzzertests/fuzzers/abi Fuzz fuzzAbi
|
||||
|
||||
|
||||
@ -17,38 +17,53 @@
|
||||
package abi
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"math/rand"
|
||||
"reflect"
|
||||
"strings"
|
||||
|
||||
"github.com/ethereum/go-ethereum/accounts/abi"
|
||||
"github.com/ethereum/go-ethereum/crypto"
|
||||
fuzz "github.com/google/gofuzz"
|
||||
)
|
||||
|
||||
func unpackPack(abi abi.ABI, method string, inputType []interface{}, input []byte) bool {
|
||||
outptr := reflect.New(reflect.TypeOf(inputType))
|
||||
if err := abi.UnpackIntoInterface(outptr.Interface(), method, input); err == nil {
|
||||
output, err := abi.Pack(method, input)
|
||||
var (
|
||||
names = []string{"_name", "name", "NAME", "name_", "__", "_name_", "n"}
|
||||
stateMut = []string{"", "pure", "view", "payable"}
|
||||
stateMutabilites = []*string{&stateMut[0], &stateMut[1], &stateMut[2], &stateMut[3]}
|
||||
pays = []string{"", "true", "false"}
|
||||
payables = []*string{&pays[0], &pays[1]}
|
||||
vNames = []string{"a", "b", "c", "d", "e", "f", "g"}
|
||||
varNames = append(vNames, names...)
|
||||
varTypes = []string{"bool", "address", "bytes", "string",
|
||||
"uint8", "int8", "uint8", "int8", "uint16", "int16",
|
||||
"uint24", "int24", "uint32", "int32", "uint40", "int40", "uint48", "int48", "uint56", "int56",
|
||||
"uint64", "int64", "uint72", "int72", "uint80", "int80", "uint88", "int88", "uint96", "int96",
|
||||
"uint104", "int104", "uint112", "int112", "uint120", "int120", "uint128", "int128", "uint136", "int136",
|
||||
"uint144", "int144", "uint152", "int152", "uint160", "int160", "uint168", "int168", "uint176", "int176",
|
||||
"uint184", "int184", "uint192", "int192", "uint200", "int200", "uint208", "int208", "uint216", "int216",
|
||||
"uint224", "int224", "uint232", "int232", "uint240", "int240", "uint248", "int248", "uint256", "int256",
|
||||
"bytes1", "bytes2", "bytes3", "bytes4", "bytes5", "bytes6", "bytes7", "bytes8", "bytes9", "bytes10", "bytes11",
|
||||
"bytes12", "bytes13", "bytes14", "bytes15", "bytes16", "bytes17", "bytes18", "bytes19", "bytes20", "bytes21",
|
||||
"bytes22", "bytes23", "bytes24", "bytes25", "bytes26", "bytes27", "bytes28", "bytes29", "bytes30", "bytes31",
|
||||
"bytes32", "bytes"}
|
||||
)
|
||||
|
||||
func unpackPack(abi abi.ABI, method string, input []byte) ([]interface{}, bool) {
|
||||
if out, err := abi.Unpack(method, input); err == nil {
|
||||
_, err := abi.Pack(method, out...)
|
||||
if err != nil {
|
||||
// We have some false positives as we can unpack these type successfully, but not pack them
|
||||
if err.Error() == "abi: cannot use []uint8 as type [0]int8 as argument" ||
|
||||
err.Error() == "abi: cannot use uint8 as type int8 as argument" {
|
||||
return false
|
||||
return out, false
|
||||
}
|
||||
panic(err)
|
||||
}
|
||||
if !bytes.Equal(input, output[4:]) {
|
||||
panic(fmt.Sprintf("unpackPack is not equal, \ninput : %x\noutput: %x", input, output[4:]))
|
||||
}
|
||||
return true
|
||||
return out, true
|
||||
}
|
||||
return false
|
||||
return nil, false
|
||||
}
|
||||
|
||||
func packUnpack(abi abi.ABI, method string, input []interface{}) bool {
|
||||
func packUnpack(abi abi.ABI, method string, input *[]interface{}) bool {
|
||||
if packed, err := abi.Pack(method, input); err == nil {
|
||||
outptr := reflect.New(reflect.TypeOf(input))
|
||||
err := abi.UnpackIntoInterface(outptr.Interface(), method, packed)
|
||||
@ -100,64 +115,23 @@ func createABI(name string, stateMutability, payable *string, inputs []args) (ab
|
||||
return abi.JSON(strings.NewReader(sig))
|
||||
}
|
||||
|
||||
func fillStruct(structs []interface{}, data []byte) {
|
||||
if structs != nil && len(data) != 0 {
|
||||
fuzz.NewFromGoFuzz(data).Fuzz(&structs)
|
||||
}
|
||||
}
|
||||
|
||||
func createStructs(args []args) []interface{} {
|
||||
structs := make([]interface{}, len(args))
|
||||
for i, arg := range args {
|
||||
t, err := abi.NewType(arg.typ, "", nil)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
structs[i] = reflect.New(t.GetType()).Elem()
|
||||
}
|
||||
return structs
|
||||
}
|
||||
|
||||
func runFuzzer(input []byte) int {
|
||||
good := false
|
||||
fuzzer := fuzz.NewFromGoFuzz(input)
|
||||
|
||||
names := []string{"_name", "name", "NAME", "name_", "__", "_name_", "n"}
|
||||
stateMut := []string{"", "pure", "view", "payable"}
|
||||
stateMutabilites := []*string{nil, &stateMut[0], &stateMut[1], &stateMut[2], &stateMut[3]}
|
||||
pays := []string{"true", "false"}
|
||||
payables := []*string{nil, &pays[0], &pays[1]}
|
||||
varNames := []string{"a", "b", "c", "d", "e", "f", "g"}
|
||||
varNames = append(varNames, names...)
|
||||
varTypes := []string{"bool", "address", "bytes", "string",
|
||||
"uint8", "int8", "uint8", "int8", "uint16", "int16",
|
||||
"uint24", "int24", "uint32", "int32", "uint40", "int40", "uint48", "int48", "uint56", "int56",
|
||||
"uint64", "int64", "uint72", "int72", "uint80", "int80", "uint88", "int88", "uint96", "int96",
|
||||
"uint104", "int104", "uint112", "int112", "uint120", "int120", "uint128", "int128", "uint136", "int136",
|
||||
"uint144", "int144", "uint152", "int152", "uint160", "int160", "uint168", "int168", "uint176", "int176",
|
||||
"uint184", "int184", "uint192", "int192", "uint200", "int200", "uint208", "int208", "uint216", "int216",
|
||||
"uint224", "int224", "uint232", "int232", "uint240", "int240", "uint248", "int248", "uint256", "int256",
|
||||
"bytes1", "bytes2", "bytes3", "bytes4", "bytes5", "bytes6", "bytes7", "bytes8", "bytes9", "bytes10", "bytes11",
|
||||
"bytes12", "bytes13", "bytes14", "bytes15", "bytes16", "bytes17", "bytes18", "bytes19", "bytes20", "bytes21",
|
||||
"bytes22", "bytes23", "bytes24", "bytes25", "bytes26", "bytes27", "bytes28", "bytes29", "bytes30", "bytes31",
|
||||
"bytes32", "bytes"}
|
||||
rnd := rand.New(rand.NewSource(123456))
|
||||
if len(input) > 0 {
|
||||
kec := crypto.Keccak256(input)
|
||||
rnd = rand.New(rand.NewSource(int64(kec[0])))
|
||||
}
|
||||
name := names[rnd.Intn(len(names))]
|
||||
stateM := stateMutabilites[rnd.Intn(len(stateMutabilites))]
|
||||
payable := payables[rnd.Intn(len(payables))]
|
||||
name := names[getUInt(fuzzer)%len(names)]
|
||||
stateM := stateMutabilites[getUInt(fuzzer)%len(stateMutabilites)]
|
||||
payable := payables[getUInt(fuzzer)%len(payables)]
|
||||
maxLen := 5
|
||||
for k := 1; k < maxLen; k++ {
|
||||
var arg []args
|
||||
for i := k; i > 0; i-- {
|
||||
argName := varNames[i]
|
||||
argTyp := varTypes[rnd.Int31n(int32(len(varTypes)))]
|
||||
if rnd.Int31n(10) == 0 {
|
||||
argTyp := varTypes[getUInt(fuzzer)%len(varTypes)]
|
||||
if getUInt(fuzzer)%10 == 0 {
|
||||
argTyp += "[]"
|
||||
} else if rnd.Int31n(10) == 0 {
|
||||
arrayArgs := rnd.Int31n(30) + 1
|
||||
} else if getUInt(fuzzer)%10 == 0 {
|
||||
arrayArgs := getUInt(fuzzer)%30 + 1
|
||||
argTyp += fmt.Sprintf("[%d]", arrayArgs)
|
||||
}
|
||||
arg = append(arg, args{
|
||||
@ -169,10 +143,8 @@ func runFuzzer(input []byte) int {
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
structs := createStructs(arg)
|
||||
b := unpackPack(abi, name, structs, input)
|
||||
fillStruct(structs, input)
|
||||
c := packUnpack(abi, name, structs)
|
||||
structs, b := unpackPack(abi, name, input)
|
||||
c := packUnpack(abi, name, &structs)
|
||||
good = good || b || c
|
||||
}
|
||||
if good {
|
||||
@ -184,3 +156,12 @@ func runFuzzer(input []byte) int {
|
||||
func Fuzz(input []byte) int {
|
||||
return runFuzzer(input)
|
||||
}
|
||||
|
||||
func getUInt(fuzzer *fuzz.Fuzzer) int {
|
||||
var i int
|
||||
fuzzer.Fuzz(&i)
|
||||
if i < 0 {
|
||||
i *= -1
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
@ -23,13 +23,8 @@ import (
|
||||
// TestReplicate can be used to replicate crashers from the fuzzing tests.
|
||||
// Just replace testString with the data in .quoted
|
||||
func TestReplicate(t *testing.T) {
|
||||
testString := "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
|
||||
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00 \x00\x00\x00\x00\x00\x00\x00\x00" +
|
||||
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" +
|
||||
"\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00000000000" +
|
||||
"00000000000000000000" +
|
||||
"00000000000000000000" +
|
||||
"00000001"
|
||||
testString := "N\xef\xbf0\xef\xbf99000000000000" +
|
||||
"000000000000"
|
||||
|
||||
data := []byte(testString)
|
||||
runFuzzer(data)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user