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package main
import (
"bytes"
"fmt"
"math/big"
"os"
"strconv"
"github.com/ethereum-optimism/optimism/cannon/mipsevm"
"github.com/ethereum-optimism/optimism/op-bindings/predeploys"
"github.com/ethereum-optimism/optimism/op-chain-ops/crossdomain"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/trie"
)
// ABI types
var (
// Plain dynamic dynBytes type
dynBytes, _ = abi.NewType("bytes", "", nil)
bytesArgs = abi.Arguments{
{Type: dynBytes},
}
// Plain fixed bytes32 type
fixedBytes, _ = abi.NewType("bytes32", "", nil)
fixedBytesArgs = abi.Arguments{
{Type: fixedBytes},
}
// Decoded nonce tuple (nonce, version)
decodedNonce, _ = abi.NewType("tuple", "DecodedNonce", []abi.ArgumentMarshaling{
{Name: "nonce", Type: "uint256"},
{Name: "version", Type: "uint256"},
})
decodedNonceArgs = abi.Arguments{
{Name: "encodedNonce", Type: decodedNonce},
}
// WithdrawalHash slot tuple (bytes32, bytes32)
withdrawalSlot, _ = abi.NewType("tuple", "SlotHash", []abi.ArgumentMarshaling{
{Name: "withdrawalHash", Type: "bytes32"},
{Name: "zeroPadding", Type: "bytes32"},
})
withdrawalSlotArgs = abi.Arguments{
{Name: "slotHash", Type: withdrawalSlot},
}
// Prove withdrawal inputs tuple (bytes32, bytes32, bytes32, bytes32, bytes[])
proveWithdrawalInputs, _ = abi.NewType("tuple", "ProveWithdrawalInputs", []abi.ArgumentMarshaling{
{Name: "worldRoot", Type: "bytes32"},
{Name: "stateRoot", Type: "bytes32"},
{Name: "outputRoot", Type: "bytes32"},
{Name: "withdrawalHash", Type: "bytes32"},
{Name: "proof", Type: "bytes[]"},
})
proveWithdrawalInputsArgs = abi.Arguments{
{Name: "inputs", Type: proveWithdrawalInputs},
}
// cannonMemoryProof inputs tuple (bytes32, bytes)
cannonMemoryProof, _ = abi.NewType("tuple", "CannonMemoryProof", []abi.ArgumentMarshaling{
{Name: "memRoot", Type: "bytes32"},
{Name: "proof", Type: "bytes"},
})
cannonMemoryProofArgs = abi.Arguments{
{Name: "encodedCannonMemoryProof", Type: cannonMemoryProof},
}
)
func main() {
args := os.Args[1:]
// This command requires arguments
if len(args) == 0 {
panic("Error: No arguments provided")
}
switch args[0] {
case "decodeVersionedNonce":
// Parse input arguments
input, ok := new(big.Int).SetString(args[1], 10)
checkOk(ok)
// Decode versioned nonce
nonce, version := crossdomain.DecodeVersionedNonce(input)
// ABI encode output
packArgs := struct {
Nonce *big.Int
Version *big.Int
}{
nonce,
version,
}
packed, err := decodedNonceArgs.Pack(&packArgs)
checkErr(err, "Error encoding output")
fmt.Print(hexutil.Encode(packed))
case "encodeCrossDomainMessage":
// Parse input arguments
nonce, ok := new(big.Int).SetString(args[1], 10)
checkOk(ok)
sender := common.HexToAddress(args[2])
target := common.HexToAddress(args[3])
value, ok := new(big.Int).SetString(args[4], 10)
checkOk(ok)
gasLimit, ok := new(big.Int).SetString(args[5], 10)
checkOk(ok)
data := common.FromHex(args[6])
// Encode cross domain message
encoded, err := encodeCrossDomainMessage(nonce, sender, target, value, gasLimit, data)
checkErr(err, "Error encoding cross domain message")
// Pack encoded cross domain message
packed, err := bytesArgs.Pack(&encoded)
checkErr(err, "Error encoding output")
fmt.Print(hexutil.Encode(packed))
case "hashCrossDomainMessage":
// Parse input arguments
nonce, ok := new(big.Int).SetString(args[1], 10)
checkOk(ok)
sender := common.HexToAddress(args[2])
target := common.HexToAddress(args[3])
value, ok := new(big.Int).SetString(args[4], 10)
checkOk(ok)
gasLimit, ok := new(big.Int).SetString(args[5], 10)
checkOk(ok)
data := common.FromHex(args[6])
// Encode cross domain message
encoded, err := encodeCrossDomainMessage(nonce, sender, target, value, gasLimit, data)
checkErr(err, "Error encoding cross domain message")
// Hash encoded cross domain message
hash := crypto.Keccak256Hash(encoded)
// Pack hash
packed, err := fixedBytesArgs.Pack(&hash)
checkErr(err, "Error encoding output")
fmt.Print(hexutil.Encode(packed))
case "hashDepositTransaction":
// Parse input arguments
l1BlockHash := common.HexToHash(args[1])
logIndex, ok := new(big.Int).SetString(args[2], 10)
checkOk(ok)
from := common.HexToAddress(args[3])
to := common.HexToAddress(args[4])
mint, ok := new(big.Int).SetString(args[5], 10)
checkOk(ok)
value, ok := new(big.Int).SetString(args[6], 10)
checkOk(ok)
gasLimit, ok := new(big.Int).SetString(args[7], 10)
checkOk(ok)
data := common.FromHex(args[8])
// Create deposit transaction
depositTx := makeDepositTx(from, to, value, mint, gasLimit, false, data, l1BlockHash, logIndex)
// RLP encode deposit transaction
encoded, err := types.NewTx(&depositTx).MarshalBinary()
checkErr(err, "Error encoding deposit transaction")
// Hash encoded deposit transaction
hash := crypto.Keccak256Hash(encoded)
// Pack hash
packed, err := fixedBytesArgs.Pack(&hash)
checkErr(err, "Error encoding output")
fmt.Print(hexutil.Encode(packed))
case "encodeDepositTransaction":
// Parse input arguments
from := common.HexToAddress(args[1])
to := common.HexToAddress(args[2])
value, ok := new(big.Int).SetString(args[3], 10)
checkOk(ok)
mint, ok := new(big.Int).SetString(args[4], 10)
checkOk(ok)
gasLimit, ok := new(big.Int).SetString(args[5], 10)
checkOk(ok)
isCreate := args[6] == "true"
data := common.FromHex(args[7])
l1BlockHash := common.HexToHash(args[8])
logIndex, ok := new(big.Int).SetString(args[9], 10)
checkOk(ok)
depositTx := makeDepositTx(from, to, value, mint, gasLimit, isCreate, data, l1BlockHash, logIndex)
// RLP encode deposit transaction
encoded, err := types.NewTx(&depositTx).MarshalBinary()
checkErr(err, "Failed to RLP encode deposit transaction")
// Pack rlp encoded deposit transaction
packed, err := bytesArgs.Pack(&encoded)
checkErr(err, "Error encoding output")
fmt.Print(hexutil.Encode(packed))
case "hashWithdrawal":
// Parse input arguments
nonce, ok := new(big.Int).SetString(args[1], 10)
checkOk(ok)
sender := common.HexToAddress(args[2])
target := common.HexToAddress(args[3])
value, ok := new(big.Int).SetString(args[4], 10)
checkOk(ok)
gasLimit, ok := new(big.Int).SetString(args[5], 10)
checkOk(ok)
data := common.FromHex(args[6])
// Hash withdrawal
hash, err := hashWithdrawal(nonce, sender, target, value, gasLimit, data)
checkErr(err, "Error hashing withdrawal")
// Pack hash
packed, err := fixedBytesArgs.Pack(&hash)
checkErr(err, "Error encoding output")
fmt.Print(hexutil.Encode(packed))
case "hashOutputRootProof":
// Parse input arguments
version := common.HexToHash(args[1])
stateRoot := common.HexToHash(args[2])
messagePasserStorageRoot := common.HexToHash(args[3])
latestBlockHash := common.HexToHash(args[4])
// Hash the output root proof
hash, err := hashOutputRootProof(version, stateRoot, messagePasserStorageRoot, latestBlockHash)
checkErr(err, "Error hashing output root proof")
// Pack hash
packed, err := fixedBytesArgs.Pack(&hash)
checkErr(err, "Error encoding output")
fmt.Print(hexutil.Encode(packed))
case "getProveWithdrawalTransactionInputs":
// Parse input arguments
nonce, ok := new(big.Int).SetString(args[1], 10)
checkOk(ok)
sender := common.HexToAddress(args[2])
target := common.HexToAddress(args[3])
value, ok := new(big.Int).SetString(args[4], 10)
checkOk(ok)
gasLimit, ok := new(big.Int).SetString(args[5], 10)
checkOk(ok)
data := common.FromHex(args[6])
wdHash, err := hashWithdrawal(nonce, sender, target, value, gasLimit, data)
checkErr(err, "Error hashing withdrawal")
// Compute the storage slot the withdrawalHash will be stored in
slot := struct {
WithdrawalHash common.Hash
ZeroPadding common.Hash
}{
WithdrawalHash: wdHash,
ZeroPadding: common.Hash{},
}
packed, err := withdrawalSlotArgs.Pack(&slot)
checkErr(err, "Error packing withdrawal slot")
// Compute the storage slot the withdrawalHash will be stored in
hash := crypto.Keccak256Hash(packed)
// Create a secure trie for state
state, err := trie.NewStateTrie(
trie.TrieID(types.EmptyRootHash),
trie.NewDatabase(rawdb.NewMemoryDatabase()),
)
checkErr(err, "Error creating secure trie")
// Put a "true" bool in the storage slot
err = state.UpdateStorage(common.Address{}, hash.Bytes(), []byte{0x01})
checkErr(err, "Error updating storage")
// Create a secure trie for the world state
world, err := trie.NewStateTrie(
trie.TrieID(types.EmptyRootHash),
trie.NewDatabase(rawdb.NewMemoryDatabase()),
)
checkErr(err, "Error creating secure trie")
// Put the put the rlp encoded account in the world trie
account := types.StateAccount{
Nonce: 0,
Balance: big.NewInt(0),
Root: state.Hash(),
}
writer := new(bytes.Buffer)
checkErr(account.EncodeRLP(writer), "Error encoding account")
err = world.UpdateStorage(common.Address{}, predeploys.L2ToL1MessagePasserAddr.Bytes(), writer.Bytes())
checkErr(err, "Error updating storage")
// Get the proof
var proof proofList
checkErr(state.Prove(predeploys.L2ToL1MessagePasserAddr.Bytes(), 0, &proof), "Error getting proof")
// Get the output root
outputRoot, err := hashOutputRootProof(common.Hash{}, world.Hash(), state.Hash(), common.Hash{})
checkErr(err, "Error hashing output root proof")
// Pack the output
output := struct {
WorldRoot common.Hash
StateRoot common.Hash
OutputRoot common.Hash
WithdrawalHash common.Hash
Proof proofList
}{
WorldRoot: world.Hash(),
StateRoot: state.Hash(),
OutputRoot: outputRoot,
WithdrawalHash: wdHash,
Proof: proof,
}
packed, err = proveWithdrawalInputsArgs.Pack(&output)
checkErr(err, "Error encoding output")
// Print the output
fmt.Print(hexutil.Encode(packed[32:]))
case "cannonMemoryProof":
// <pc, insn, [memAddr, memValue]>
mem := mipsevm.NewMemory()
if len(args) != 3 && len(args) != 5 {
panic("Error: cannonMemoryProofWithProof requires 2 or 4 arguments")
}
pc, err := strconv.ParseUint(args[1], 10, 32)
checkErr(err, "Error decocding addr")
insn, err := strconv.ParseUint(args[2], 10, 32)
checkErr(err, "Error decocding insn")
mem.SetMemory(uint32(pc), uint32(insn))
var insnProof, memProof [896]byte
if len(args) == 5 {
memAddr, err := strconv.ParseUint(args[3], 10, 32)
checkErr(err, "Error decocding memAddr")
memValue, err := strconv.ParseUint(args[4], 10, 32)
checkErr(err, "Error decocding memValue")
mem.SetMemory(uint32(memAddr), uint32(memValue))
memProof = mem.MerkleProof(uint32(memAddr))
}
insnProof = mem.MerkleProof(uint32(pc))
output := struct {
MemRoot common.Hash
Proof []byte
}{
MemRoot: mem.MerkleRoot(),
Proof: append(insnProof[:], memProof[:]...),
}
packed, err := cannonMemoryProofArgs.Pack(&output)
checkErr(err, "Error encoding output")
fmt.Print(hexutil.Encode(packed[32:]))
default:
panic(fmt.Errorf("Unknown command: %s", args[0]))
}
}