[Rust/Eth]: Add fuzz tests (#3463)

rust/coverage.stats

@@ -1 +1 @@
-90.0
+92.0

rust/tw_evm/Cargo.toml

@@ -4,7 +4,6 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-ethabi = { version = "18.0.0", features = ["full-serde"] }
 itertools = "0.10.5"
 lazy_static = "1.4.0"
 rlp = "0.5.2"
@@ -16,7 +15,7 @@ tw_hash = { path = "../tw_hash" }
 tw_keypair = { path = "../tw_keypair" }
 tw_memory = { path = "../tw_memory" }
 tw_misc = { path = "../tw_misc" }
-tw_number = { path = "../tw_number", features = ["ethabi"] }
+tw_number = { path = "../tw_number" }
 tw_proto = { path = "../tw_proto" }
 
 [dev-dependencies]

rust/tw_evm/fuzz/.gitignore

@@ -0,0 +1,5 @@
+target
+corpus
+artifacts
+coverage
+Cargo.lock

rust/tw_evm/fuzz/Cargo.toml

@@ -0,0 +1,54 @@
+[package]
+name = "tw_evm-fuzz"
+version = "0.0.0"
+publish = false
+edition = "2021"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = { version = "0.4", features = ["arbitrary-derive"] }
+serde_json = "1.0.95"
+tw_number = { path = "../../tw_number" }
+tw_proto = { path = "../../tw_proto", features = ["fuzz"] }
+
+[dependencies.tw_evm]
+path = ".."
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[profile.release]
+debug = 1
+
+[[bin]]
+name = "abi_encode_function"
+path = "fuzz_targets/abi_encode_function.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "abi_decode_value"
+path = "fuzz_targets/abi_decode_value.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "abi_function_decode_input"
+path = "fuzz_targets/abi_function_decode_input.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "rlp_encode"
+path = "fuzz_targets/rlp_encode.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "sign"
+path = "fuzz_targets/sign.rs"
+test = false
+doc = false

rust/tw_evm/fuzz/fuzz_targets/abi_decode_value.rs

@@ -0,0 +1,16 @@
+// Copyright © 2017-2023 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use tw_evm::evm_context::StandardEvmContext;
+use tw_evm::modules::abi_encoder::AbiEncoder;
+use tw_proto::EthereumAbi::Proto;
+
+fuzz_target!(|input: Proto::ValueDecodingInput<'_>| {
+    let _ = AbiEncoder::<StandardEvmContext>::decode_value(input);
+});

rust/tw_evm/fuzz/fuzz_targets/abi_encode_function.rs

@@ -0,0 +1,16 @@
+// Copyright © 2017-2023 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use tw_evm::evm_context::StandardEvmContext;
+use tw_evm::modules::abi_encoder::AbiEncoder;
+use tw_proto::EthereumAbi::Proto;
+
+fuzz_target!(|input: Proto::FunctionEncodingInput<'_>| {
+    let _ = AbiEncoder::<StandardEvmContext>::encode_contract_call(input);
+});

rust/tw_evm/fuzz/fuzz_targets/abi_function_decode_input.rs

@@ -0,0 +1,16 @@
+// Copyright © 2017-2023 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use tw_evm::evm_context::StandardEvmContext;
+use tw_evm::modules::abi_encoder::AbiEncoder;
+use tw_proto::EthereumAbi::Proto;
+
+fuzz_target!(|input: Proto::ParamsDecodingInput<'_>| {
+    let _ = AbiEncoder::<StandardEvmContext>::decode_params(input);
+});

rust/tw_evm/fuzz/fuzz_targets/rlp_encode.rs

@@ -0,0 +1,16 @@
+// Copyright © 2017-2023 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use tw_evm::evm_context::StandardEvmContext;
+use tw_evm::modules::rlp_encoder::RlpEncoder;
+use tw_proto::EthereumRlp::Proto;
+
+fuzz_target!(|input: Proto::EncodingInput<'_>| {
+    let _ = RlpEncoder::<StandardEvmContext>::encode_with_proto(input);
+});

rust/tw_evm/fuzz/fuzz_targets/sign.rs

@@ -0,0 +1,16 @@
+// Copyright © 2017-2023 Trust Wallet.
+//
+// This file is part of Trust. The full Trust copyright notice, including
+// terms governing use, modification, and redistribution, is contained in the
+// file LICENSE at the root of the source code distribution tree.
+
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use tw_evm::evm_context::StandardEvmContext;
+use tw_evm::modules::signer::Signer;
+use tw_proto::Ethereum::Proto;
+
+fuzz_target!(|input: Proto::SigningInput<'_>| {
+    let _ = Signer::<StandardEvmContext>::sign_proto(input);
+});