From b47cf8fe1de4f97ce38417d8136a58812734a7a9 Mon Sep 17 00:00:00 2001 From: Sina Mahmoodi <1591639+s1na@users.noreply.github.com> Date: Wed, 21 Feb 2024 12:46:32 +0100 Subject: [PATCH] internal/ethapi: fix defaults for blob fields (#29037) Co-authored-by: Martin HS --- internal/ethapi/transaction_args.go | 36 +++++++++++----------- internal/ethapi/transaction_args_test.go | 38 +++++++++++------------- 2 files changed, 35 insertions(+), 39 deletions(-) diff --git a/internal/ethapi/transaction_args.go b/internal/ethapi/transaction_args.go index 03ffb7524..d221c14db 100644 --- a/internal/ethapi/transaction_args.go +++ b/internal/ethapi/transaction_args.go @@ -177,6 +177,14 @@ func (args *TransactionArgs) setDefaults(ctx context.Context, b Backend) error { // setFeeDefaults fills in default fee values for unspecified tx fields. func (args *TransactionArgs) setFeeDefaults(ctx context.Context, b Backend) error { + head := b.CurrentHeader() + // Sanity check the EIP-4844 fee parameters. + if args.BlobFeeCap != nil && args.BlobFeeCap.ToInt().Sign() == 0 { + return errors.New("maxFeePerBlobGas, if specified, must be non-zero") + } + if err := args.setCancunFeeDefaults(ctx, head, b); err != nil { + return err + } // If both gasPrice and at least one of the EIP-1559 fee parameters are specified, error. if args.GasPrice != nil && (args.MaxFeePerGas != nil || args.MaxPriorityFeePerGas != nil) { return errors.New("both gasPrice and (maxFeePerGas or maxPriorityFeePerGas) specified") @@ -186,7 +194,6 @@ func (args *TransactionArgs) setFeeDefaults(ctx context.Context, b Backend) erro // other tx values. See https://github.com/ethereum/go-ethereum/pull/23274 // for more information. eip1559ParamsSet := args.MaxFeePerGas != nil && args.MaxPriorityFeePerGas != nil - // Sanity check the EIP-1559 fee parameters if present. if args.GasPrice == nil && eip1559ParamsSet { if args.MaxFeePerGas.ToInt().Sign() == 0 { @@ -198,13 +205,7 @@ func (args *TransactionArgs) setFeeDefaults(ctx context.Context, b Backend) erro return nil // No need to set anything, user already set MaxFeePerGas and MaxPriorityFeePerGas } - // Sanity check the EIP-4844 fee parameters. - if args.BlobFeeCap != nil && args.BlobFeeCap.ToInt().Sign() == 0 { - return errors.New("maxFeePerBlobGas must be non-zero") - } - // Sanity check the non-EIP-1559 fee parameters. - head := b.CurrentHeader() isLondon := b.ChainConfig().IsLondon(head.Number) if args.GasPrice != nil && !eip1559ParamsSet { // Zero gas-price is not allowed after London fork @@ -215,21 +216,14 @@ func (args *TransactionArgs) setFeeDefaults(ctx context.Context, b Backend) erro } // Now attempt to fill in default value depending on whether London is active or not. - if b.ChainConfig().IsCancun(head.Number, head.Time) { - if err := args.setCancunFeeDefaults(ctx, head, b); err != nil { - return err - } - } else if isLondon { - if args.BlobFeeCap != nil { - return errors.New("maxFeePerBlobGas is not valid before Cancun is active") - } + if isLondon { // London is active, set maxPriorityFeePerGas and maxFeePerGas. if err := args.setLondonFeeDefaults(ctx, head, b); err != nil { return err } } else { - if args.MaxFeePerGas != nil || args.MaxPriorityFeePerGas != nil || args.BlobFeeCap != nil { - return errors.New("maxFeePerGas and maxPriorityFeePerGas and maxFeePerBlobGas are not valid before London is active") + if args.MaxFeePerGas != nil || args.MaxPriorityFeePerGas != nil { + return errors.New("maxFeePerGas and maxPriorityFeePerGas are not valid before London is active") } // London not active, set gas price. price, err := b.SuggestGasTipCap(ctx) @@ -245,15 +239,19 @@ func (args *TransactionArgs) setFeeDefaults(ctx context.Context, b Backend) erro func (args *TransactionArgs) setCancunFeeDefaults(ctx context.Context, head *types.Header, b Backend) error { // Set maxFeePerBlobGas if it is missing. if args.BlobHashes != nil && args.BlobFeeCap == nil { + var excessBlobGas uint64 + if head.ExcessBlobGas != nil { + excessBlobGas = *head.ExcessBlobGas + } // ExcessBlobGas must be set for a Cancun block. - blobBaseFee := eip4844.CalcBlobFee(*head.ExcessBlobGas) + blobBaseFee := eip4844.CalcBlobFee(excessBlobGas) // Set the max fee to be 2 times larger than the previous block's blob base fee. // The additional slack allows the tx to not become invalidated if the base // fee is rising. val := new(big.Int).Mul(blobBaseFee, big.NewInt(2)) args.BlobFeeCap = (*hexutil.Big)(val) } - return args.setLondonFeeDefaults(ctx, head, b) + return nil } // setLondonFeeDefaults fills in reasonable default fee values for unspecified fields. diff --git a/internal/ethapi/transaction_args_test.go b/internal/ethapi/transaction_args_test.go index f0fdb6d8e..1b1634b25 100644 --- a/internal/ethapi/transaction_args_test.go +++ b/internal/ethapi/transaction_args_test.go @@ -153,14 +153,14 @@ func TestSetFeeDefaults(t *testing.T) { "legacy", &TransactionArgs{MaxFeePerGas: maxFee}, nil, - errors.New("maxFeePerGas and maxPriorityFeePerGas and maxFeePerBlobGas are not valid before London is active"), + errors.New("maxFeePerGas and maxPriorityFeePerGas are not valid before London is active"), }, { "dynamic fee tx pre-London, priorityFee set", "legacy", &TransactionArgs{MaxPriorityFeePerGas: fortytwo}, nil, - errors.New("maxFeePerGas and maxPriorityFeePerGas and maxFeePerBlobGas are not valid before London is active"), + errors.New("maxFeePerGas and maxPriorityFeePerGas are not valid before London is active"), }, { "dynamic fee tx, maxFee < priorityFee", @@ -207,20 +207,6 @@ func TestSetFeeDefaults(t *testing.T) { errors.New("both gasPrice and (maxFeePerGas or maxPriorityFeePerGas) specified"), }, // EIP-4844 - { - "set maxFeePerBlobGas pre cancun", - "london", - &TransactionArgs{BlobFeeCap: fortytwo}, - nil, - errors.New("maxFeePerBlobGas is not valid before Cancun is active"), - }, - { - "set maxFeePerBlobGas pre london", - "legacy", - &TransactionArgs{BlobFeeCap: fortytwo}, - nil, - errors.New("maxFeePerGas and maxPriorityFeePerGas and maxFeePerBlobGas are not valid before London is active"), - }, { "set gas price and maxFee for blob transaction", "cancun", @@ -235,6 +221,13 @@ func TestSetFeeDefaults(t *testing.T) { &TransactionArgs{BlobHashes: []common.Hash{}, BlobFeeCap: (*hexutil.Big)(big.NewInt(4)), MaxFeePerGas: maxFee, MaxPriorityFeePerGas: fortytwo}, nil, }, + { + "fill maxFeePerBlobGas when dynamic fees are set", + "cancun", + &TransactionArgs{BlobHashes: []common.Hash{}, MaxFeePerGas: maxFee, MaxPriorityFeePerGas: fortytwo}, + &TransactionArgs{BlobHashes: []common.Hash{}, BlobFeeCap: (*hexutil.Big)(big.NewInt(4)), MaxFeePerGas: maxFee, MaxPriorityFeePerGas: fortytwo}, + nil, + }, } ctx := context.Background() @@ -244,11 +237,16 @@ func TestSetFeeDefaults(t *testing.T) { } got := test.in err := got.setFeeDefaults(ctx, b) - if err != nil && err.Error() == test.err.Error() { - // Test threw expected error. + if err != nil { + if test.err == nil { + t.Fatalf("test %d (%s): unexpected error: %s", i, test.name, err) + } else if err.Error() != test.err.Error() { + t.Fatalf("test %d (%s): unexpected error: (got: %s, want: %s)", i, test.name, err, test.err) + } + // Matching error. continue - } else if err != nil { - t.Fatalf("test %d (%s): unexpected error: %s", i, test.name, err) + } else if test.err != nil { + t.Fatalf("test %d (%s): expected error: %s", i, test.name, test.err) } if !reflect.DeepEqual(got, test.want) { t.Fatalf("test %d (%s): did not fill defaults as expected: (got: %v, want: %v)", i, test.name, got, test.want)