diff --git a/Cargo.toml b/Cargo.toml index af0eaeef..5acc3c85 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -15,14 +15,10 @@ exclude = ["benches/", "tests/"] [workspace.dependencies] alloy-rlp = { version = "0.3", default-features = false } alloy-primitives = { version = "0.7.0", default-features = false } -alloy-consensus = { git = "https://github.com/alloy-rs/alloy", branch = "main", default-features = false } -alloy-eips = { git = "https://github.com/alloy-rs/alloy", branch = "main", default-features = false } -alloy-signer = { git = "https://github.com/alloy-rs/alloy", branch = "main", default-features = false } -alloy-serde = { git = "https://github.com/alloy-rs/alloy", branch = "main", default-features = false } - -## crypto -c-kzg = { version = "1.0", default-features = false } -k256 = { version = "0.13", default-features = false, features = ["ecdsa"] } +alloy-consensus = { git = "https://github.com/clabby/alloy", branch = "cl/consensus-expose-encoding", default-features = false } +alloy-eips = { git = "https://github.com/clabby/alloy", branch = "cl/consensus-expose-encoding", default-features = false } +alloy-signer = { git = "https://github.com/clabby/alloy", branch = "cl/consensus-expose-encoding", default-features = false } +alloy-serde = { git = "https://github.com/clabby/alloy", branch = "cl/consensus-expose-encoding", default-features = false } ## serde serde = { version = "1.0", default-features = false, features = ["derive", "alloc"] } @@ -31,7 +27,6 @@ serde_json = { version = "1.0", default-features = false, features = ["alloc"] } ## misc tokio = "1" arbitrary = "1.3" -thiserror = "1.0" [workspace.metadata.docs.rs] all-features = true diff --git a/crates/op-consensus/Cargo.toml b/crates/op-consensus/Cargo.toml index 6a21a124..e8b36b73 100644 --- a/crates/op-consensus/Cargo.toml +++ b/crates/op-consensus/Cargo.toml @@ -18,12 +18,6 @@ alloy-rlp.workspace = true alloy-eips.workspace = true alloy-serde = { workspace = true, optional = true } -sha2 = { version = "0.10", default-features = false } - -# kzg -thiserror = { workspace = true, optional = true } -c-kzg = { workspace = true, features = ["serde"], optional = true } - # arbitrary arbitrary = { workspace = true, features = ["derive"], optional = true } @@ -33,14 +27,13 @@ serde = { workspace = true, features = ["derive"], optional = true } [dev-dependencies] alloy-signer.workspace = true arbitrary = { workspace = true, features = ["derive"] } -k256.workspace = true tokio = { workspace = true, features = ["macros"] } serde_json.workspace = true [features] default = ["std"] -std = ["alloy-eips/std", "alloy-consensus/std", "sha2/std", "c-kzg?/std"] +std = ["alloy-eips/std", "alloy-consensus/std"] k256 = ["alloy-primitives/k256", "alloy-consensus/k256"] -kzg = ["dep:c-kzg", "dep:thiserror", "alloy-eips/kzg", "alloy-consensus/kzg", "std"] +kzg = ["alloy-eips/kzg", "alloy-consensus/kzg", "std"] arbitrary = ["std", "dep:arbitrary", "alloy-consensus/arbitrary", "alloy-eips/arbitrary", "alloy-primitives/rand"] -serde = ["dep:serde", "alloy-primitives/serde", "alloy-consensus/serde", "dep:alloy-serde", "alloy-eips/serde"] +serde = ["dep:serde", "dep:alloy-serde", "alloy-primitives/serde", "alloy-consensus/serde", "alloy-eips/serde"] diff --git a/crates/op-consensus/README.md b/crates/op-consensus/README.md index f20dff09..0f8e4079 100644 --- a/crates/op-consensus/README.md +++ b/crates/op-consensus/README.md @@ -3,15 +3,12 @@ OP Stack consensus interface. This crate contains constants, types, and functions for implementing Optimism EL consensus and communication. This -includes transactions, [EIP-2718] envelopes, [EIP-2930], [EIP-4844], [deposit transactions][deposit], and receipts. +includes an extended `OpTxEnvelope` type with [deposit transactions][deposit], and receipts containing OP Stack +specific fields (`deposit_nonce` + `deposit_receipt_version`). In general a type belongs in this crate if it exists in the `alloy-consensus` crate, but was modified from the base Ethereum protocol in the OP Stack. For consensus types that are not modified by the OP Stack, the `alloy-consensus` types should be used instead. -[alloy-network]: ../network -[EIP-2718]: https://eips.ethereum.org/EIPS/eip-2718 -[EIP-2930]: https://eips.ethereum.org/EIPS/eip-2930 -[EIP-4844]: https://eips.ethereum.org/EIPS/eip-4844 [deposit]: https://specs.optimism.io/protocol/deposits.html ## Provenance diff --git a/crates/op-consensus/src/lib.rs b/crates/op-consensus/src/lib.rs index 3ade3a04..636330d9 100644 --- a/crates/op-consensus/src/lib.rs +++ b/crates/op-consensus/src/lib.rs @@ -23,14 +23,4 @@ mod receipt; pub use receipt::{OpReceipt, OpReceiptEnvelope, OpReceiptWithBloom, OpTxReceipt}; mod transaction; -pub use transaction::{ - eip4844_utils, Blob, BlobTransactionSidecar, Bytes48, OpTxEnvelope, OpTxType, - OpTypedTransaction, SidecarBuilder, SidecarCoder, SimpleCoder, TxDeposit, TxEip1559, TxEip2930, - TxEip4844, TxEip4844Variant, TxEip4844WithSidecar, TxLegacy, -}; - -#[cfg(feature = "kzg")] -pub use transaction::BlobTransactionValidationError; - -#[cfg(feature = "kzg")] -pub use alloy_eips::eip4844::env_settings::EnvKzgSettings; +pub use transaction::{OpTxEnvelope, OpTxType, OpTypedTransaction, TxDeposit}; diff --git a/crates/op-consensus/src/transaction/eip1559.rs b/crates/op-consensus/src/transaction/eip1559.rs deleted file mode 100644 index 66e9008a..00000000 --- a/crates/op-consensus/src/transaction/eip1559.rs +++ /dev/null @@ -1,410 +0,0 @@ -use crate::OpTxType; -use alloy_consensus::{SignableTransaction, Signed, Transaction}; -use alloy_eips::eip2930::AccessList; -use alloy_primitives::{keccak256, Bytes, ChainId, Signature, TxKind, U256}; -use alloy_rlp::{BufMut, Decodable, Encodable, Header}; -use core::mem; - -#[cfg(not(feature = "std"))] -use alloc::vec::Vec; - -/// A transaction with a priority fee ([EIP-1559](https://eips.ethereum.org/EIPS/eip-1559)). -#[derive(Debug, Clone, PartialEq, Eq, Hash, Default)] -#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))] -#[cfg_attr(feature = "serde", serde(rename_all = "camelCase"))] -pub struct TxEip1559 { - /// EIP-155: Simple replay attack protection - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u64_hex_or_decimal"))] - pub chain_id: ChainId, - /// A scalar value equal to the number of transactions sent by the sender; formally Tn. - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u64_hex_or_decimal"))] - pub nonce: u64, - /// A scalar value equal to the maximum - /// amount of gas that should be used in executing - /// this transaction. This is paid up-front, before any - /// computation is done and may not be increased - /// later; formally Tg. - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub gas_limit: u128, - /// A scalar value equal to the maximum - /// amount of gas that should be used in executing - /// this transaction. This is paid up-front, before any - /// computation is done and may not be increased - /// later; formally Tg. - /// - /// As ethereum circulation is around 120mil eth as of 2022 that is around - /// 120000000000000000000000000 wei we are safe to use u128 as its max number is: - /// 340282366920938463463374607431768211455 - /// - /// This is also known as `GasFeeCap` - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub max_fee_per_gas: u128, - /// Max Priority fee that transaction is paying - /// - /// As ethereum circulation is around 120mil eth as of 2022 that is around - /// 120000000000000000000000000 wei we are safe to use u128 as its max number is: - /// 340282366920938463463374607431768211455 - /// - /// This is also known as `GasTipCap` - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub max_priority_fee_per_gas: u128, - /// The 160-bit address of the message call’s recipient or, for a contract creation - /// transaction, ∅, used here to denote the only member of B0 ; formally Tt. - #[cfg_attr(feature = "serde", serde(default, skip_serializing_if = "TxKind::is_create"))] - pub to: TxKind, - /// A scalar value equal to the number of Wei to - /// be transferred to the message call’s recipient or, - /// in the case of contract creation, as an endowment - /// to the newly created account; formally Tv. - pub value: U256, - /// The accessList specifies a list of addresses and storage keys; - /// these addresses and storage keys are added into the `accessed_addresses` - /// and `accessed_storage_keys` global sets (introduced in EIP-2929). - /// A gas cost is charged, though at a discount relative to the cost of - /// accessing outside the list. - pub access_list: AccessList, - /// Input has two uses depending if transaction is Create or Call (if `to` field is None or - /// Some). pub init: An unlimited size byte array specifying the - /// EVM-code for the account initialisation procedure CREATE, - /// data: An unlimited size byte array specifying the - /// input data of the message call, formally Td. - pub input: Bytes, -} - -impl TxEip1559 { - /// Returns the effective gas price for the given `base_fee`. - pub const fn effective_gas_price(&self, base_fee: Option) -> u128 { - match base_fee { - None => self.max_fee_per_gas, - Some(base_fee) => { - // if the tip is greater than the max priority fee per gas, set it to the max - // priority fee per gas + base fee - let tip = self.max_fee_per_gas.saturating_sub(base_fee as u128); - if tip > self.max_priority_fee_per_gas { - self.max_priority_fee_per_gas + base_fee as u128 - } else { - // otherwise return the max fee per gas - self.max_fee_per_gas - } - } - } - } - - /// Decodes the inner [TxEip1559] fields from RLP bytes. - /// - /// NOTE: This assumes a RLP header has already been decoded, and _just_ decodes the following - /// RLP fields in the following order: - /// - /// - `chain_id` - /// - `nonce` - /// - `max_priority_fee_per_gas` - /// - `max_fee_per_gas` - /// - `gas_limit` - /// - `to` - /// - `value` - /// - `data` (`input`) - /// - `access_list` - pub(crate) fn decode_fields(buf: &mut &[u8]) -> alloy_rlp::Result { - Ok(Self { - chain_id: Decodable::decode(buf)?, - nonce: Decodable::decode(buf)?, - max_priority_fee_per_gas: Decodable::decode(buf)?, - max_fee_per_gas: Decodable::decode(buf)?, - gas_limit: Decodable::decode(buf)?, - to: Decodable::decode(buf)?, - value: Decodable::decode(buf)?, - input: Decodable::decode(buf)?, - access_list: Decodable::decode(buf)?, - }) - } - - /// Encodes only the transaction's fields into the desired buffer, without a RLP header. - pub(crate) fn fields_len(&self) -> usize { - let mut len = 0; - len += self.chain_id.length(); - len += self.nonce.length(); - len += self.max_priority_fee_per_gas.length(); - len += self.max_fee_per_gas.length(); - len += self.gas_limit.length(); - len += self.to.length(); - len += self.value.length(); - len += self.input.0.length(); - len += self.access_list.length(); - len - } - - /// Encodes only the transaction's fields into the desired buffer, without a RLP header. - pub(crate) fn encode_fields(&self, out: &mut dyn alloy_rlp::BufMut) { - self.chain_id.encode(out); - self.nonce.encode(out); - self.max_priority_fee_per_gas.encode(out); - self.max_fee_per_gas.encode(out); - self.gas_limit.encode(out); - self.to.encode(out); - self.value.encode(out); - self.input.0.encode(out); - self.access_list.encode(out); - } - - /// Returns what the encoded length should be, if the transaction were RLP encoded with the - /// given signature, depending on the value of `with_header`. - /// - /// If `with_header` is `true`, the payload length will include the RLP header length. - /// If `with_header` is `false`, the payload length will not include the RLP header length. - pub(crate) fn encoded_len_with_signature( - &self, - signature: &Signature, - with_header: bool, - ) -> usize { - // this counts the tx fields and signature fields - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - - // this counts: - // * tx type byte - // * inner header length - // * inner payload length - let inner_payload_length = - 1 + Header { list: true, payload_length }.length() + payload_length; - - if with_header { - // header length plus length of the above, wrapped with a string header - Header { list: false, payload_length: inner_payload_length }.length() - + inner_payload_length - } else { - inner_payload_length - } - } - - /// Inner encoding function that is used for both rlp [`Encodable`] trait and for calculating - /// hash that for eip2718 does not require a rlp header - pub(crate) fn encode_with_signature( - &self, - signature: &Signature, - out: &mut dyn BufMut, - with_header: bool, - ) { - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - if with_header { - Header { - list: false, - payload_length: 1 + Header { list: true, payload_length }.length() + payload_length, - } - .encode(out); - } - out.put_u8(self.tx_type() as u8); - self.encode_with_signature_fields(signature, out); - } - - /// Decodes the transaction from RLP bytes, including the signature. - /// - /// This __does not__ expect the bytes to start with a transaction type byte or string - /// header. - /// - /// This __does__ expect the bytes to start with a list header and include a signature. - pub(crate) fn decode_signed_fields(buf: &mut &[u8]) -> alloy_rlp::Result> { - let header = Header::decode(buf)?; - if !header.list { - return Err(alloy_rlp::Error::UnexpectedString); - } - - // record original length so we can check encoding - let original_len = buf.len(); - - let tx = Self::decode_fields(buf)?; - let signature = Signature::decode_rlp_vrs(buf)?; - - let signed = tx.into_signed(signature); - if buf.len() + header.payload_length != original_len { - return Err(alloy_rlp::Error::ListLengthMismatch { - expected: header.payload_length, - got: original_len - buf.len(), - }); - } - - Ok(signed) - } - - /// Encodes the transaction from RLP bytes, including the signature. This __does not__ encode a - /// tx type byte or string header. - /// - /// This __does__ encode a list header and include a signature. - pub(crate) fn encode_with_signature_fields(&self, signature: &Signature, out: &mut dyn BufMut) { - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - let header = Header { list: true, payload_length }; - header.encode(out); - self.encode_fields(out); - signature.write_rlp_vrs(out); - } - - /// Get transaction type - pub(crate) const fn tx_type(&self) -> OpTxType { - OpTxType::Eip1559 - } - - /// Calculates a heuristic for the in-memory size of the [TxEip1559] transaction. - #[inline] - pub fn size(&self) -> usize { - mem::size_of::() + // chain_id - mem::size_of::() + // nonce - mem::size_of::() + // gas_limit - mem::size_of::() + // max_fee_per_gas - mem::size_of::() + // max_priority_fee_per_gas - self.to.size() + // to - mem::size_of::() + // value - self.access_list.size() + // access_list - self.input.len() // input - } -} - -impl Transaction for TxEip1559 { - fn input(&self) -> &[u8] { - &self.input - } - - fn to(&self) -> TxKind { - self.to - } - - fn value(&self) -> U256 { - self.value - } - - fn chain_id(&self) -> Option { - Some(self.chain_id) - } - - fn nonce(&self) -> u64 { - self.nonce - } - - fn gas_limit(&self) -> u128 { - self.gas_limit - } - - fn gas_price(&self) -> Option { - None - } -} - -impl SignableTransaction for TxEip1559 { - fn set_chain_id(&mut self, chain_id: ChainId) { - self.chain_id = chain_id; - } - - fn encode_for_signing(&self, out: &mut dyn alloy_rlp::BufMut) { - out.put_u8(self.tx_type() as u8); - self.encode(out) - } - - fn payload_len_for_signature(&self) -> usize { - self.length() + 1 - } - - fn into_signed(self, signature: Signature) -> Signed { - let mut buf = Vec::with_capacity(self.encoded_len_with_signature(&signature, false)); - self.encode_with_signature(&signature, &mut buf, false); - let hash = keccak256(&buf); - - // Drop any v chain id value to ensure the signature format is correct at the time of - // combination for an EIP-1559 transaction. V should indicate the y-parity of the - // signature. - Signed::new_unchecked(self, signature.with_parity_bool(), hash) - } -} - -impl Encodable for TxEip1559 { - fn encode(&self, out: &mut dyn BufMut) { - Header { list: true, payload_length: self.fields_len() }.encode(out); - self.encode_fields(out); - } - - fn length(&self) -> usize { - let payload_length = self.fields_len(); - Header { list: true, payload_length }.length() + payload_length - } -} - -impl Decodable for TxEip1559 { - fn decode(data: &mut &[u8]) -> alloy_rlp::Result { - let header = Header::decode(data)?; - let remaining_len = data.len(); - - if header.payload_length > remaining_len { - return Err(alloy_rlp::Error::InputTooShort); - } - - Self::decode_fields(data) - } -} - -#[cfg(all(test, feature = "k256"))] -mod tests { - use super::TxEip1559; - use crate::SignableTransaction; - use alloy_eips::eip2930::AccessList; - use alloy_primitives::{address, b256, hex, Address, Signature, TxKind, B256, U256}; - - #[test] - fn recover_signer_eip1559() { - let signer: Address = address!("dd6b8b3dc6b7ad97db52f08a275ff4483e024cea"); - let hash: B256 = b256!("0ec0b6a2df4d87424e5f6ad2a654e27aaeb7dac20ae9e8385cc09087ad532ee0"); - - let tx = TxEip1559 { - chain_id: 1, - nonce: 0x42, - gas_limit: 44386, - to: TxKind::Call( address!("6069a6c32cf691f5982febae4faf8a6f3ab2f0f6")), - value: U256::from(0_u64), - input: hex!("a22cb4650000000000000000000000005eee75727d804a2b13038928d36f8b188945a57a0000000000000000000000000000000000000000000000000000000000000000").into(), - max_fee_per_gas: 0x4a817c800, - max_priority_fee_per_gas: 0x3b9aca00, - access_list: AccessList::default(), - }; - - let sig = Signature::from_scalars_and_parity( - b256!("840cfc572845f5786e702984c2a582528cad4b49b2a10b9db1be7fca90058565"), - b256!("25e7109ceb98168d95b09b18bbf6b685130e0562f233877d492b94eee0c5b6d1"), - false, - ) - .unwrap(); - - assert_eq!( - tx.signature_hash(), - hex!("0d5688ac3897124635b6cf1bc0e29d6dfebceebdc10a54d74f2ef8b56535b682") - ); - - let signed_tx = tx.into_signed(sig); - assert_eq!(*signed_tx.hash(), hash, "Expected same hash"); - assert_eq!(signed_tx.recover_signer().unwrap(), signer, "Recovering signer should pass."); - } - - #[test] - fn encode_decode_eip1559() { - let hash: B256 = b256!("0ec0b6a2df4d87424e5f6ad2a654e27aaeb7dac20ae9e8385cc09087ad532ee0"); - - let tx = TxEip1559 { - chain_id: 1, - nonce: 0x42, - gas_limit: 44386, - to: TxKind::Call( address!("6069a6c32cf691f5982febae4faf8a6f3ab2f0f6")), - value: U256::from(0_u64), - input: hex!("a22cb4650000000000000000000000005eee75727d804a2b13038928d36f8b188945a57a0000000000000000000000000000000000000000000000000000000000000000").into(), - max_fee_per_gas: 0x4a817c800, - max_priority_fee_per_gas: 0x3b9aca00, - access_list: AccessList::default(), - }; - - let sig = Signature::from_scalars_and_parity( - b256!("840cfc572845f5786e702984c2a582528cad4b49b2a10b9db1be7fca90058565"), - b256!("25e7109ceb98168d95b09b18bbf6b685130e0562f233877d492b94eee0c5b6d1"), - false, - ) - .unwrap(); - - let mut buf = vec![]; - tx.encode_with_signature_fields(&sig, &mut buf); - let decoded = TxEip1559::decode_signed_fields(&mut &buf[..]).unwrap(); - assert_eq!(decoded, tx.into_signed(sig)); - assert_eq!(*decoded.hash(), hash); - } -} diff --git a/crates/op-consensus/src/transaction/eip2930.rs b/crates/op-consensus/src/transaction/eip2930.rs deleted file mode 100644 index d9cfd576..00000000 --- a/crates/op-consensus/src/transaction/eip2930.rs +++ /dev/null @@ -1,368 +0,0 @@ -use crate::OpTxType; -use alloy_consensus::{SignableTransaction, Signed, Transaction}; -use alloy_eips::eip2930::AccessList; -use alloy_primitives::{keccak256, Bytes, ChainId, Signature, TxKind, U256}; -use alloy_rlp::{length_of_length, BufMut, Decodable, Encodable, Header}; -use core::mem; - -#[cfg(not(feature = "std"))] -use alloc::vec::Vec; - -/// Transaction with an [`AccessList`] ([EIP-2930](https://eips.ethereum.org/EIPS/eip-2930)). -#[derive(Debug, Clone, PartialEq, Eq, Hash, Default)] -#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))] -#[cfg_attr(feature = "serde", serde(rename_all = "camelCase"))] -pub struct TxEip2930 { - /// Added as EIP-pub 155: Simple replay attack protection - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u64_hex_or_decimal"))] - pub chain_id: ChainId, - /// A scalar value equal to the number of transactions sent by the sender; formally Tn. - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u64_hex_or_decimal"))] - pub nonce: u64, - /// A scalar value equal to the number of - /// Wei to be paid per unit of gas for all computation - /// costs incurred as a result of the execution of this transaction; formally Tp. - /// - /// As ethereum circulation is around 120mil eth as of 2022 that is around - /// 120000000000000000000000000 wei we are safe to use u128 as its max number is: - /// 340282366920938463463374607431768211455 - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub gas_price: u128, - /// A scalar value equal to the maximum - /// amount of gas that should be used in executing - /// this transaction. This is paid up-front, before any - /// computation is done and may not be increased - /// later; formally Tg. - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub gas_limit: u128, - /// The 160-bit address of the message call’s recipient or, for a contract creation - /// transaction, ∅, used here to denote the only member of B0 ; formally Tt. - #[cfg_attr(feature = "serde", serde(default, skip_serializing_if = "TxKind::is_create"))] - pub to: TxKind, - /// A scalar value equal to the number of Wei to - /// be transferred to the message call’s recipient or, - /// in the case of contract creation, as an endowment - /// to the newly created account; formally Tv. - pub value: U256, - /// The accessList specifies a list of addresses and storage keys; - /// these addresses and storage keys are added into the `accessed_addresses` - /// and `accessed_storage_keys` global sets (introduced in EIP-2929). - /// A gas cost is charged, though at a discount relative to the cost of - /// accessing outside the list. - pub access_list: AccessList, - /// Input has two uses depending if transaction is Create or Call (if `to` field is None or - /// Some). pub init: An unlimited size byte array specifying the - /// EVM-code for the account initialisation procedure CREATE, - /// data: An unlimited size byte array specifying the - /// input data of the message call, formally Td. - pub input: Bytes, -} - -impl TxEip2930 { - /// Calculates a heuristic for the in-memory size of the [TxEip2930] transaction. - #[inline] - pub fn size(&self) -> usize { - mem::size_of::() + // chain_id - mem::size_of::() + // nonce - mem::size_of::() + // gas_price - mem::size_of::() + // gas_limit - self.to.size() + // to - mem::size_of::() + // value - self.access_list.size() + // access_list - self.input.len() // input - } - - /// Decodes the inner [TxEip2930] fields from RLP bytes. - /// - /// NOTE: This assumes a RLP header has already been decoded, and _just_ decodes the following - /// RLP fields in the following order: - /// - /// - `chain_id` - /// - `nonce` - /// - `gas_price` - /// - `gas_limit` - /// - `to` - /// - `value` - /// - `data` (`input`) - /// - `access_list` - pub(crate) fn decode_fields(buf: &mut &[u8]) -> alloy_rlp::Result { - Ok(Self { - chain_id: Decodable::decode(buf)?, - nonce: Decodable::decode(buf)?, - gas_price: Decodable::decode(buf)?, - gas_limit: Decodable::decode(buf)?, - to: Decodable::decode(buf)?, - value: Decodable::decode(buf)?, - input: Decodable::decode(buf)?, - access_list: Decodable::decode(buf)?, - }) - } - - /// Outputs the length of the transaction's fields, without a RLP header. - pub(crate) fn fields_len(&self) -> usize { - let mut len = 0; - len += self.chain_id.length(); - len += self.nonce.length(); - len += self.gas_price.length(); - len += self.gas_limit.length(); - len += self.to.length(); - len += self.value.length(); - len += self.input.0.length(); - len += self.access_list.length(); - len - } - - /// Encodes only the transaction's fields into the desired buffer, without a RLP header. - pub(crate) fn encode_fields(&self, out: &mut dyn BufMut) { - self.chain_id.encode(out); - self.nonce.encode(out); - self.gas_price.encode(out); - self.gas_limit.encode(out); - self.to.encode(out); - self.value.encode(out); - self.input.0.encode(out); - self.access_list.encode(out); - } - - /// Returns what the encoded length should be, if the transaction were RLP encoded with the - /// given signature, depending on the value of `with_header`. - /// - /// If `with_header` is `true`, the payload length will include the RLP header length. - /// If `with_header` is `false`, the payload length will not include the RLP header length. - pub(crate) fn encoded_len_with_signature( - &self, - signature: &Signature, - with_header: bool, - ) -> usize { - // this counts the tx fields and signature fields - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - - // this counts: - // * tx type byte - // * inner header length - // * inner payload length - let inner_payload_length = - 1 + Header { list: true, payload_length }.length() + payload_length; - - if with_header { - // header length plus length of the above, wrapped with a string header - Header { list: false, payload_length: inner_payload_length }.length() - + inner_payload_length - } else { - inner_payload_length - } - } - - /// Inner encoding function that is used for both rlp [`Encodable`] trait and for calculating - /// hash that for eip2718 does not require a rlp header - pub(crate) fn encode_with_signature( - &self, - signature: &Signature, - out: &mut dyn BufMut, - with_header: bool, - ) { - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - if with_header { - Header { - list: false, - payload_length: 1 + Header { list: true, payload_length }.length() + payload_length, - } - .encode(out); - } - out.put_u8(self.tx_type() as u8); - self.encode_with_signature_fields(signature, out); - } - - /// Encodes the transaction from RLP bytes, including the signature. This __does not__ encode a - /// tx type byte or string header. - /// - /// This __does__ encode a list header and include a signature. - pub(crate) fn encode_with_signature_fields(&self, signature: &Signature, out: &mut dyn BufMut) { - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - let header = Header { list: true, payload_length }; - header.encode(out); - self.encode_fields(out); - signature.write_rlp_vrs(out); - } - - /// Decodes the transaction from RLP bytes, including the signature. - /// - /// This __does not__ expect the bytes to start with a transaction type byte or string - /// header. - /// - /// This __does__ expect the bytes to start with a list header and include a signature. - pub(crate) fn decode_signed_fields(buf: &mut &[u8]) -> alloy_rlp::Result> { - let header = Header::decode(buf)?; - if !header.list { - return Err(alloy_rlp::Error::UnexpectedString); - } - - // record original length so we can check encoding - let original_len = buf.len(); - - let tx = Self::decode_fields(buf)?; - let signature = Signature::decode_rlp_vrs(buf)?; - - let signed = tx.into_signed(signature); - if buf.len() + header.payload_length != original_len { - return Err(alloy_rlp::Error::ListLengthMismatch { - expected: header.payload_length, - got: original_len - buf.len(), - }); - } - - Ok(signed) - } - - /// Get transaction type. - pub const fn tx_type(&self) -> OpTxType { - OpTxType::Eip2930 - } -} - -impl Transaction for TxEip2930 { - fn input(&self) -> &[u8] { - &self.input - } - - fn to(&self) -> TxKind { - self.to - } - - fn value(&self) -> U256 { - self.value - } - - fn chain_id(&self) -> Option { - Some(self.chain_id) - } - - fn nonce(&self) -> u64 { - self.nonce - } - - fn gas_limit(&self) -> u128 { - self.gas_limit - } - - fn gas_price(&self) -> Option { - Some(self.gas_price) - } -} - -impl SignableTransaction for TxEip2930 { - fn set_chain_id(&mut self, chain_id: ChainId) { - self.chain_id = chain_id; - } - - fn encode_for_signing(&self, out: &mut dyn BufMut) { - out.put_u8(self.tx_type() as u8); - Header { list: true, payload_length: self.fields_len() }.encode(out); - self.encode_fields(out); - } - - fn payload_len_for_signature(&self) -> usize { - let payload_length = self.fields_len(); - // 'transaction type byte length' + 'header length' + 'payload length' - 1 + Header { list: true, payload_length }.length() + payload_length - } - - fn into_signed(self, signature: Signature) -> Signed { - let mut buf = Vec::with_capacity(self.encoded_len_with_signature(&signature, false)); - self.encode_with_signature(&signature, &mut buf, false); - let hash = keccak256(&buf); - - // Drop any v chain id value to ensure the signature format is correct at the time of - // combination for an EIP-2930 transaction. V should indicate the y-parity of the - // signature. - Signed::new_unchecked(self, signature.with_parity_bool(), hash) - } -} - -impl Encodable for TxEip2930 { - fn encode(&self, out: &mut dyn BufMut) { - Header { list: true, payload_length: self.fields_len() }.encode(out); - self.encode_fields(out); - } - - fn length(&self) -> usize { - let payload_length = self.fields_len(); - length_of_length(payload_length) + payload_length - } -} - -impl Decodable for TxEip2930 { - fn decode(data: &mut &[u8]) -> alloy_rlp::Result { - let header = Header::decode(data)?; - let remaining_len = data.len(); - - if header.payload_length > remaining_len { - return Err(alloy_rlp::Error::InputTooShort); - } - - Self::decode_fields(data) - } -} - -#[cfg(test)] -mod tests { - use super::TxEip2930; - use crate::OpTxEnvelope; - use alloy_consensus::SignableTransaction; - use alloy_primitives::{Address, Bytes, Signature, TxKind, U256}; - use alloy_rlp::{Decodable, Encodable}; - - #[test] - fn test_decode_create() { - // tests that a contract creation tx encodes and decodes properly - let tx = TxEip2930 { - chain_id: 1u64, - nonce: 0, - gas_price: 1, - gas_limit: 2, - to: TxKind::Create, - value: U256::from(3_u64), - input: Bytes::from(vec![1, 2]), - access_list: Default::default(), - }; - let signature = Signature::test_signature(); - - let mut encoded = Vec::new(); - tx.encode_with_signature_fields(&signature, &mut encoded); - - let decoded = TxEip2930::decode_signed_fields(&mut &*encoded).unwrap(); - assert_eq!(decoded, tx.into_signed(signature)); - } - - #[test] - fn test_decode_call() { - let request = TxEip2930 { - chain_id: 1u64, - nonce: 0, - gas_price: 1, - gas_limit: 2, - to: TxKind::Call(Address::default()), - value: U256::from(3_u64), - input: Bytes::from(vec![1, 2]), - access_list: Default::default(), - }; - - let signature = Signature::test_signature(); - - let tx = request.into_signed(signature); - - let envelope = OpTxEnvelope::Eip2930(tx); - - let mut encoded = Vec::new(); - envelope.encode(&mut encoded); - assert_eq!(encoded.len(), envelope.length()); - - assert_eq!( - alloy_primitives::hex::encode(&encoded), - "b86401f8610180010294000000000000000000000000000000000000000003820102c080a0840cfc572845f5786e702984c2a582528cad4b49b2a10b9db1be7fca90058565a025e7109ceb98168d95b09b18bbf6b685130e0562f233877d492b94eee0c5b6d1" - ); - - let decoded = OpTxEnvelope::decode(&mut encoded.as_ref()).unwrap(); - assert_eq!(decoded, envelope); - } -} diff --git a/crates/op-consensus/src/transaction/eip4844.rs b/crates/op-consensus/src/transaction/eip4844.rs deleted file mode 100644 index 7808ccdc..00000000 --- a/crates/op-consensus/src/transaction/eip4844.rs +++ /dev/null @@ -1,1169 +0,0 @@ -mod builder; -pub use builder::{SidecarBuilder, SidecarCoder, SimpleCoder}; - -pub mod utils; - -use crate::OpTxType; -use alloy_consensus::{SignableTransaction, Signed, Transaction}; -use alloy_eips::{ - eip2930::AccessList, - eip4844::{BYTES_PER_BLOB, BYTES_PER_COMMITMENT, BYTES_PER_PROOF, DATA_GAS_PER_BLOB}, -}; -use alloy_primitives::{ - keccak256, Address, Bytes, ChainId, FixedBytes, Signature, TxKind, B256, U256, -}; -use alloy_rlp::{length_of_length, BufMut, Decodable, Encodable, Header}; -use core::mem; -use sha2::{Digest, Sha256}; - -#[cfg(not(feature = "std"))] -use alloc::vec::Vec; - -#[cfg(not(feature = "kzg"))] -pub use alloy_eips::eip4844::{Blob, Bytes48}; - -#[cfg(feature = "kzg")] -use c_kzg::{KzgCommitment, KzgProof, KzgSettings}; -#[cfg(feature = "kzg")] -use std::ops::Deref; - -#[cfg(feature = "kzg")] -pub use c_kzg::{Blob, Bytes48}; - -/// An error that can occur when validating a [TxEip4844Variant]. -#[derive(Debug, thiserror::Error)] -#[cfg(feature = "kzg")] -pub enum BlobTransactionValidationError { - /// Proof validation failed. - #[error("invalid KZG proof")] - InvalidProof, - /// An error returned by [`c_kzg`]. - #[error("KZG error: {0:?}")] - KZGError(#[from] c_kzg::Error), - /// The inner transaction is not a blob transaction. - #[error("unable to verify proof for non blob transaction: {0}")] - NotBlobTransaction(u8), - /// Using a standalone [TxEip4844] instead of the [TxEip4844WithSidecar] variant, which - /// includes the sidecar for validation. - #[error("eip4844 tx variant without sidecar being used for verification. Please use the TxEip4844WithSidecar variant, which includes the sidecar")] - MissingSidecar, - /// The versioned hash is incorrect. - #[error("wrong versioned hash: have {have}, expected {expected}")] - WrongVersionedHash { - /// The versioned hash we got - have: B256, - /// The versioned hash we expected - expected: B256, - }, -} - -/// [EIP-4844 Blob Transaction](https://eips.ethereum.org/EIPS/eip-4844#blob-transaction) -/// -/// A transaction with blob hashes and max blob fee. -/// It can either be a standalone transaction, mainly seen when retrieving historical transactions, -/// or a transaction with a sidecar, which is used when submitting a transaction to the network and -/// when receiving and sending transactions during the gossip stage. -#[derive(Debug, Clone, PartialEq, Eq, Hash)] -#[cfg_attr(feature = "serde", derive(serde::Serialize))] -#[cfg_attr(feature = "serde", serde(untagged))] -pub enum TxEip4844Variant { - /// A standalone transaction with blob hashes and max blob fee. - TxEip4844(TxEip4844), - /// A transaction with a sidecar, which contains the blob data, commitments, and proofs. - TxEip4844WithSidecar(TxEip4844WithSidecar), -} - -#[cfg(feature = "serde")] -impl<'de> serde::Deserialize<'de> for TxEip4844Variant { - fn deserialize(deserializer: D) -> Result - where - D: serde::Deserializer<'de>, - { - #[derive(serde::Deserialize)] - struct TxEip4844SerdeHelper { - #[serde(flatten)] - tx: TxEip4844, - #[serde(flatten)] - sidecar: Option, - } - - let tx = TxEip4844SerdeHelper::deserialize(deserializer)?; - - if let Some(sidecar) = tx.sidecar { - Ok(TxEip4844Variant::TxEip4844WithSidecar(TxEip4844WithSidecar::from_tx_and_sidecar( - tx.tx, sidecar, - ))) - } else { - Ok(TxEip4844Variant::TxEip4844(tx.tx)) - } - } -} - -impl From for TxEip4844Variant { - fn from(tx: TxEip4844WithSidecar) -> Self { - TxEip4844Variant::TxEip4844WithSidecar(tx) - } -} - -impl From for TxEip4844Variant { - fn from(tx: TxEip4844) -> Self { - TxEip4844Variant::TxEip4844(tx) - } -} - -impl From<(TxEip4844, BlobTransactionSidecar)> for TxEip4844Variant { - fn from((tx, sidecar): (TxEip4844, BlobTransactionSidecar)) -> Self { - TxEip4844Variant::TxEip4844WithSidecar(TxEip4844WithSidecar::from_tx_and_sidecar( - tx, sidecar, - )) - } -} - -impl TxEip4844Variant { - /// Verifies that the transaction's blob data, commitments, and proofs are all valid. - /// - /// See also [TxEip4844::validate_blob] - #[cfg(feature = "kzg")] - pub fn validate( - &self, - proof_settings: &KzgSettings, - ) -> Result<(), BlobTransactionValidationError> { - match self { - TxEip4844Variant::TxEip4844(_) => Err(BlobTransactionValidationError::MissingSidecar), - TxEip4844Variant::TxEip4844WithSidecar(tx) => tx.validate_blob(proof_settings), - } - } - - /// Get the transaction type. - pub const fn tx_type(&self) -> OpTxType { - OpTxType::Eip4844 - } - - /// Get access to the inner tx [TxEip4844]. - pub const fn tx(&self) -> &TxEip4844 { - match self { - TxEip4844Variant::TxEip4844(tx) => tx, - TxEip4844Variant::TxEip4844WithSidecar(tx) => tx.tx(), - } - } - - pub(crate) fn fields_len(&self) -> usize { - match self { - TxEip4844Variant::TxEip4844(tx) => tx.fields_len(), - TxEip4844Variant::TxEip4844WithSidecar(tx) => tx.tx().fields_len(), - } - } - - /// Encodes the [TxEip4844Variant] fields as RLP, with a tx type. If `with_header` is `false`, - /// the following will be encoded: - /// `tx_type (0x03) || rlp([transaction_payload_body, blobs, commitments, proofs])` - /// - /// If `with_header` is `true`, the following will be encoded: - /// `rlp(tx_type (0x03) || rlp([transaction_payload_body, blobs, commitments, proofs]))` - pub(crate) fn encode_with_signature( - &self, - signature: &Signature, - out: &mut dyn BufMut, - with_header: bool, - ) { - let payload_length = match self { - TxEip4844Variant::TxEip4844(tx) => tx.fields_len() + signature.rlp_vrs_len(), - TxEip4844Variant::TxEip4844WithSidecar(tx) => { - let payload_length = tx.tx().fields_len() + signature.rlp_vrs_len(); - let inner_header = Header { list: true, payload_length }; - inner_header.length() + payload_length + tx.sidecar().fields_len() - } - }; - - if with_header { - Header { - list: false, - payload_length: 1 - + Header { list: false, payload_length }.length() - + payload_length, - } - .encode(out); - } - out.put_u8(self.tx_type() as u8); - - match self { - TxEip4844Variant::TxEip4844(tx) => { - tx.encode_with_signature_fields(signature, out); - } - TxEip4844Variant::TxEip4844WithSidecar(tx) => { - tx.encode_with_signature_fields(signature, out); - } - } - } - - pub(crate) fn decode_signed_fields(buf: &mut &[u8]) -> alloy_rlp::Result> { - let mut current_buf = *buf; - let _header = Header::decode(&mut current_buf)?; - - // There are two possibilities when decoding a signed EIP-4844 transaction: - // If it's a historical transaction, it will only have the transaction fields, and no - // sidecar. If it's a transaction received during the gossip stage or sent through - // eth_sendRawTransaction, it will have the transaction fields and a sidecar. - // - // To disambiguate, we try to decode two list headers. If there is only one list header, we - // assume it's a historical transaction. If there are two, we know the transaction contains - // a sidecar. - let header = Header::decode(&mut current_buf)?; - if header.list { - let tx = TxEip4844WithSidecar::decode_signed_fields(buf)?; - let (tx, signature, hash) = tx.into_parts(); - return Ok(Signed::new_unchecked( - TxEip4844Variant::TxEip4844WithSidecar(tx), - signature, - hash, - )); - } - - // Since there is not a second list header, this is a historical 4844 transaction without a - // sidecar. - let tx = TxEip4844::decode_signed_fields(buf)?; - let (tx, signature, hash) = tx.into_parts(); - Ok(Signed::new_unchecked(TxEip4844Variant::TxEip4844(tx), signature, hash)) - } -} - -impl Transaction for TxEip4844Variant { - fn chain_id(&self) -> Option { - match self { - TxEip4844Variant::TxEip4844(tx) => Some(tx.chain_id), - TxEip4844Variant::TxEip4844WithSidecar(tx) => Some(tx.tx().chain_id), - } - } - - fn gas_limit(&self) -> u128 { - match self { - TxEip4844Variant::TxEip4844(tx) => tx.gas_limit, - TxEip4844Variant::TxEip4844WithSidecar(tx) => tx.tx().gas_limit, - } - } - - fn gas_price(&self) -> Option { - None - } - - fn input(&self) -> &[u8] { - match self { - TxEip4844Variant::TxEip4844(tx) => tx.input.as_ref(), - TxEip4844Variant::TxEip4844WithSidecar(tx) => tx.tx().input.as_ref(), - } - } - - fn nonce(&self) -> u64 { - match self { - TxEip4844Variant::TxEip4844(tx) => tx.nonce, - TxEip4844Variant::TxEip4844WithSidecar(tx) => tx.tx().nonce, - } - } - - fn to(&self) -> TxKind { - let address = match self { - TxEip4844Variant::TxEip4844(tx) => tx.to, - TxEip4844Variant::TxEip4844WithSidecar(tx) => tx.tx.to, - }; - TxKind::Call(address) - } - - fn value(&self) -> U256 { - match self { - TxEip4844Variant::TxEip4844(tx) => tx.value, - TxEip4844Variant::TxEip4844WithSidecar(tx) => tx.tx.value, - } - } -} - -impl SignableTransaction for TxEip4844Variant { - fn set_chain_id(&mut self, chain_id: ChainId) { - match self { - TxEip4844Variant::TxEip4844(ref mut inner) => { - inner.chain_id = chain_id; - } - TxEip4844Variant::TxEip4844WithSidecar(ref mut inner) => { - inner.tx.chain_id = chain_id; - } - } - } - - fn payload_len_for_signature(&self) -> usize { - let payload_length = self.fields_len(); - // 'transaction type byte length' + 'header length' + 'payload length' - 1 + length_of_length(payload_length) + payload_length - } - - fn into_signed(self, signature: Signature) -> Signed { - let payload_length = 1 + self.fields_len() + signature.rlp_vrs_len(); - let mut buf = Vec::with_capacity(payload_length); - buf.put_u8(OpTxType::Eip4844 as u8); - // we use the inner tx to encode the fields - self.tx().encode_with_signature(&signature, &mut buf, false); - let hash = keccak256(&buf); - - // Drop any v chain id value to ensure the signature format is correct at the time of - // combination for an EIP-4844 transaction. V should indicate the y-parity of the - // signature. - Signed::new_unchecked(self, signature.with_parity_bool(), hash) - } - - fn encode_for_signing(&self, out: &mut dyn alloy_rlp::BufMut) { - // A signature for a [TxEip4844WithSidecar] is a signature over the [TxEip4844Variant] - // EIP-2718 payload fields: - // (BLOB_TX_TYPE || - // rlp([chain_id, nonce, max_priority_fee_per_gas, max_fee_per_gas, gas_limit, to, value, - // data, access_list, max_fee_per_blob_gas, blob_versioned_hashes])) - self.tx().encode_for_signing(out); - } -} - -/// [EIP-4844 Blob Transaction](https://eips.ethereum.org/EIPS/eip-4844#blob-transaction) -/// -/// A transaction with blob hashes and max blob fee. It does not have the Blob sidecar. -#[derive(Debug, Clone, PartialEq, Eq, Hash, Default)] -#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))] -#[cfg_attr(feature = "serde", serde(rename_all = "camelCase"))] -pub struct TxEip4844 { - /// Added as EIP-pub 155: Simple replay attack protection - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u64_hex_or_decimal"))] - pub chain_id: ChainId, - /// A scalar value equal to the number of transactions sent by the sender; formally Tn. - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u64_hex_or_decimal"))] - pub nonce: u64, - /// A scalar value equal to the maximum - /// amount of gas that should be used in executing - /// this transaction. This is paid up-front, before any - /// computation is done and may not be increased - /// later; formally Tg. - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub gas_limit: u128, - /// A scalar value equal to the maximum - /// amount of gas that should be used in executing - /// this transaction. This is paid up-front, before any - /// computation is done and may not be increased - /// later; formally Tg. - /// - /// As ethereum circulation is around 120mil eth as of 2022 that is around - /// 120000000000000000000000000 wei we are safe to use u128 as its max number is: - /// 340282366920938463463374607431768211455 - /// - /// This is also known as `GasFeeCap` - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub max_fee_per_gas: u128, - /// Max Priority fee that transaction is paying - /// - /// As ethereum circulation is around 120mil eth as of 2022 that is around - /// 120000000000000000000000000 wei we are safe to use u128 as its max number is: - /// 340282366920938463463374607431768211455 - /// - /// This is also known as `GasTipCap` - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub max_priority_fee_per_gas: u128, - /// The 160-bit address of the message call’s recipient. - pub to: Address, - /// A scalar value equal to the number of Wei to - /// be transferred to the message call’s recipient or, - /// in the case of contract creation, as an endowment - /// to the newly created account; formally Tv. - pub value: U256, - /// The accessList specifies a list of addresses and storage keys; - /// these addresses and storage keys are added into the `accessed_addresses` - /// and `accessed_storage_keys` global sets (introduced in EIP-2929). - /// A gas cost is charged, though at a discount relative to the cost of - /// accessing outside the list. - pub access_list: AccessList, - - /// It contains a vector of fixed size hash(32 bytes) - pub blob_versioned_hashes: Vec, - - /// Max fee per data gas - /// - /// aka BlobFeeCap or blobGasFeeCap - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub max_fee_per_blob_gas: u128, - - /// Input has two uses depending if transaction is Create or Call (if `to` field is None or - /// Some). pub init: An unlimited size byte array specifying the - /// EVM-code for the account initialisation procedure CREATE, - /// data: An unlimited size byte array specifying the - /// input data of the message call, formally Td. - pub input: Bytes, -} - -impl TxEip4844 { - /// Returns the effective gas price for the given `base_fee`. - pub const fn effective_gas_price(&self, base_fee: Option) -> u128 { - match base_fee { - None => self.max_fee_per_gas, - Some(base_fee) => { - // if the tip is greater than the max priority fee per gas, set it to the max - // priority fee per gas + base fee - let tip = self.max_fee_per_gas.saturating_sub(base_fee as u128); - if tip > self.max_priority_fee_per_gas { - self.max_priority_fee_per_gas + base_fee as u128 - } else { - // otherwise return the max fee per gas - self.max_fee_per_gas - } - } - } - } - - /// Returns the total gas for all blobs in this transaction. - #[inline] - pub fn blob_gas(&self) -> u64 { - // SAFETY: we don't expect u64::MAX / DATA_GAS_PER_BLOB hashes in a single transaction - self.blob_versioned_hashes.len() as u64 * DATA_GAS_PER_BLOB - } - - /// Verifies that the given blob data, commitments, and proofs are all valid for this - /// transaction. - /// - /// Takes as input the [KzgSettings], which should contain the parameters derived from the - /// KZG trusted setup. - /// - /// This ensures that the blob transaction payload has the same number of blob data elements, - /// commitments, and proofs. Each blob data element is verified against its commitment and - /// proof. - /// - /// Returns [BlobTransactionValidationError::InvalidProof] if any blob KZG proof in the response - /// fails to verify, or if the versioned hashes in the transaction do not match the actual - /// commitment versioned hashes. - #[cfg(feature = "kzg")] - pub fn validate_blob( - &self, - sidecar: &BlobTransactionSidecar, - proof_settings: &KzgSettings, - ) -> Result<(), BlobTransactionValidationError> { - // Ensure the versioned hashes and commitments have the same length. - if self.blob_versioned_hashes.len() != sidecar.commitments.len() { - return Err(c_kzg::Error::MismatchLength(format!( - "There are {} versioned commitment hashes and {} commitments", - self.blob_versioned_hashes.len(), - sidecar.commitments.len() - )) - .into()); - } - - // calculate versioned hashes by zipping & iterating - for (versioned_hash, commitment) in - self.blob_versioned_hashes.iter().zip(sidecar.commitments.iter()) - { - let commitment = KzgCommitment::from(*commitment.deref()); - - // calculate & verify versioned hash - let calculated_versioned_hash = kzg_to_versioned_hash(commitment.as_slice()); - if *versioned_hash != calculated_versioned_hash { - return Err(BlobTransactionValidationError::WrongVersionedHash { - have: *versioned_hash, - expected: calculated_versioned_hash, - }); - } - } - - let res = KzgProof::verify_blob_kzg_proof_batch( - sidecar.blobs.as_slice(), - sidecar.commitments.as_slice(), - sidecar.proofs.as_slice(), - proof_settings, - ) - .map_err(BlobTransactionValidationError::KZGError)?; - - if res { - Ok(()) - } else { - Err(BlobTransactionValidationError::InvalidProof) - } - } - - /// Decodes the inner [TxEip4844Variant] fields from RLP bytes. - /// - /// NOTE: This assumes a RLP header has already been decoded, and _just_ decodes the following - /// RLP fields in the following order: - /// - /// - `chain_id` - /// - `nonce` - /// - `max_priority_fee_per_gas` - /// - `max_fee_per_gas` - /// - `gas_limit` - /// - `to` - /// - `value` - /// - `data` (`input`) - /// - `access_list` - /// - `max_fee_per_blob_gas` - /// - `blob_versioned_hashes` - pub fn decode_fields(buf: &mut &[u8]) -> alloy_rlp::Result { - Ok(Self { - chain_id: Decodable::decode(buf)?, - nonce: Decodable::decode(buf)?, - max_priority_fee_per_gas: Decodable::decode(buf)?, - max_fee_per_gas: Decodable::decode(buf)?, - gas_limit: Decodable::decode(buf)?, - to: Decodable::decode(buf)?, - value: Decodable::decode(buf)?, - input: Decodable::decode(buf)?, - access_list: Decodable::decode(buf)?, - max_fee_per_blob_gas: Decodable::decode(buf)?, - blob_versioned_hashes: Decodable::decode(buf)?, - }) - } - - /// Outputs the length of the transaction's fields, without a RLP header. - pub(crate) fn fields_len(&self) -> usize { - let mut len = 0; - len += self.chain_id.length(); - len += self.nonce.length(); - len += self.gas_limit.length(); - len += self.max_fee_per_gas.length(); - len += self.max_priority_fee_per_gas.length(); - len += self.to.length(); - len += self.value.length(); - len += self.access_list.length(); - len += self.blob_versioned_hashes.length(); - len += self.max_fee_per_blob_gas.length(); - len += self.input.0.length(); - len - } - - /// Encodes only the transaction's fields into the desired buffer, without a RLP header. - pub(crate) fn encode_fields(&self, out: &mut dyn BufMut) { - self.chain_id.encode(out); - self.nonce.encode(out); - self.max_priority_fee_per_gas.encode(out); - self.max_fee_per_gas.encode(out); - self.gas_limit.encode(out); - self.to.encode(out); - self.value.encode(out); - self.input.0.encode(out); - self.access_list.encode(out); - self.max_fee_per_blob_gas.encode(out); - self.blob_versioned_hashes.encode(out); - } - - /// Calculates a heuristic for the in-memory size of the [TxEip4844Variant] transaction. - #[inline] - pub fn size(&self) -> usize { - mem::size_of::() + // chain_id - mem::size_of::() + // nonce - mem::size_of::() + // gas_limit - mem::size_of::() + // max_fee_per_gas - mem::size_of::() + // max_priority_fee_per_gas - mem::size_of::
() + // to - mem::size_of::() + // value - self.access_list.size() + // access_list - self.input.len() + // input - self.blob_versioned_hashes.capacity() * mem::size_of::() + // blob hashes size - mem::size_of::() // max_fee_per_data_gas - } - - /// Returns what the encoded length should be, if the transaction were RLP encoded with the - /// given signature, depending on the value of `with_header`. - /// - /// If `with_header` is `true`, the payload length will include the RLP header length. - /// If `with_header` is `false`, the payload length will not include the RLP header length. - pub(crate) fn encoded_len_with_signature( - &self, - signature: &Signature, - with_header: bool, - ) -> usize { - // this counts the tx fields and signature fields - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - - // this counts: - // * tx type byte - // * inner header length - // * inner payload length - let inner_payload_length = - 1 + Header { list: true, payload_length }.length() + payload_length; - - if with_header { - // header length plus length of the above, wrapped with a string header - Header { list: false, payload_length: inner_payload_length }.length() - + inner_payload_length - } else { - inner_payload_length - } - } - - /// Inner encoding function that is used for both rlp [`Encodable`] trait and for calculating - /// hash that for eip2718 does not require a rlp header - pub(crate) fn encode_with_signature( - &self, - signature: &Signature, - out: &mut dyn BufMut, - with_header: bool, - ) { - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - if with_header { - Header { - list: false, - payload_length: 1 + Header { list: true, payload_length }.length() + payload_length, - } - .encode(out); - } - out.put_u8(self.tx_type() as u8); - self.encode_with_signature_fields(signature, out); - } - - /// Encodes the transaction from RLP bytes, including the signature. This __does not__ encode a - /// tx type byte or string header. - /// - /// This __does__ encode a list header and include a signature. - pub(crate) fn encode_with_signature_fields(&self, signature: &Signature, out: &mut dyn BufMut) { - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - let header = Header { list: true, payload_length }; - header.encode(out); - self.encode_fields(out); - signature.write_rlp_vrs(out); - } - - /// Decodes the transaction from RLP bytes, including the signature. - /// - /// This __does not__ expect the bytes to start with a transaction type byte or string - /// header. - /// - /// This __does__ expect the bytes to start with a list header and include a signature. - pub(crate) fn decode_signed_fields(buf: &mut &[u8]) -> alloy_rlp::Result> { - let header = Header::decode(buf)?; - if !header.list { - return Err(alloy_rlp::Error::UnexpectedString); - } - - // record original length so we can check encoding - let original_len = buf.len(); - - let tx = Self::decode_fields(buf)?; - let signature = Signature::decode_rlp_vrs(buf)?; - - let signed = tx.into_signed(signature); - if buf.len() + header.payload_length != original_len { - return Err(alloy_rlp::Error::ListLengthMismatch { - expected: header.payload_length, - got: original_len - buf.len(), - }); - } - - Ok(signed) - } - - /// Get transaction type - pub const fn tx_type(&self) -> OpTxType { - OpTxType::Eip4844 - } - - /// Encodes the EIP-4844 transaction in RLP for signing. - /// - /// This encodes the transaction as: - /// `tx_type || rlp(chain_id, nonce, max_priority_fee_per_gas, max_fee_per_gas, gas_limit, to, - /// value, input, access_list, max_fee_per_blob_gas, blob_versioned_hashes)` - /// - /// Note that there is no rlp header before the transaction type byte. - pub fn encode_for_signing(&self, out: &mut dyn BufMut) { - out.put_u8(self.tx_type() as u8); - Header { list: true, payload_length: self.fields_len() }.encode(out); - self.encode_fields(out); - } - - /// Outputs the length of the signature RLP encoding for the transaction. - pub fn payload_len_for_signature(&self) -> usize { - let payload_length = self.fields_len(); - // 'transaction type byte length' + 'header length' + 'payload length' - 1 + Header { list: true, payload_length }.length() + payload_length - } -} - -impl SignableTransaction for TxEip4844 { - fn set_chain_id(&mut self, chain_id: ChainId) { - self.chain_id = chain_id; - } - - fn payload_len_for_signature(&self) -> usize { - self.payload_len_for_signature() - } - - fn into_signed(self, signature: Signature) -> Signed { - let mut buf = Vec::with_capacity(self.encoded_len_with_signature(&signature, false)); - self.encode_with_signature(&signature, &mut buf, false); - let hash = keccak256(&buf); - - // Drop any v chain id value to ensure the signature format is correct at the time of - // combination for an EIP-4844 transaction. V should indicate the y-parity of the - // signature. - Signed::new_unchecked(self, signature.with_parity_bool(), hash) - } - - fn encode_for_signing(&self, out: &mut dyn alloy_rlp::BufMut) { - self.encode_for_signing(out); - } -} - -impl Transaction for TxEip4844 { - fn input(&self) -> &[u8] { - &self.input - } - - fn to(&self) -> TxKind { - TxKind::Call(self.to) - } - - fn value(&self) -> U256 { - self.value - } - - fn chain_id(&self) -> Option { - Some(self.chain_id) - } - - fn nonce(&self) -> u64 { - self.nonce - } - - fn gas_limit(&self) -> u128 { - self.gas_limit - } - - fn gas_price(&self) -> Option { - None - } -} - -impl Encodable for TxEip4844 { - fn encode(&self, out: &mut dyn BufMut) { - Header { list: true, payload_length: self.fields_len() }.encode(out); - self.encode_fields(out); - } - - fn length(&self) -> usize { - let payload_length = self.fields_len(); - length_of_length(payload_length) + payload_length - } -} - -impl Decodable for TxEip4844 { - fn decode(data: &mut &[u8]) -> alloy_rlp::Result { - let header = Header::decode(data)?; - let remaining_len = data.len(); - - if header.payload_length > remaining_len { - return Err(alloy_rlp::Error::InputTooShort); - } - - Self::decode_fields(data) - } -} - -/// [EIP-4844 Blob Transaction](https://eips.ethereum.org/EIPS/eip-4844#blob-transaction) -/// -/// A transaction with blob hashes and max blob fee, which also includes the -/// [BlobTransactionSidecar]. This is the full type sent over the network as a raw transaction. It -/// wraps a [TxEip4844] to include the sidecar and the ability to decode it properly. -/// -/// This is defined in [EIP-4844](https://eips.ethereum.org/EIPS/eip-4844#networking) as an element -/// of a `PooledTransactions` response, and is also used as the format for sending raw transactions -/// through the network (eth_sendRawTransaction/eth_sendTransaction). -#[derive(Debug, Default, Clone, PartialEq, Eq, Hash)] -#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))] -#[cfg_attr(feature = "serde", serde(rename_all = "camelCase"))] -pub struct TxEip4844WithSidecar { - /// The actual transaction. - #[cfg_attr(feature = "serde", serde(flatten))] - pub tx: TxEip4844, - /// The sidecar. - #[cfg_attr(feature = "serde", serde(flatten))] - pub sidecar: BlobTransactionSidecar, -} - -impl TxEip4844WithSidecar { - /// Constructs a new [TxEip4844WithSidecar] from a [TxEip4844] and a [BlobTransactionSidecar]. - pub const fn from_tx_and_sidecar(tx: TxEip4844, sidecar: BlobTransactionSidecar) -> Self { - Self { tx, sidecar } - } - - /// Verifies that the transaction's blob data, commitments, and proofs are all valid. - /// - /// See also [TxEip4844::validate_blob] - #[cfg(feature = "kzg")] - pub fn validate_blob( - &self, - proof_settings: &KzgSettings, - ) -> Result<(), BlobTransactionValidationError> { - self.tx.validate_blob(&self.sidecar, proof_settings) - } - - /// Get the transaction type. - pub const fn tx_type(&self) -> OpTxType { - self.tx.tx_type() - } - - /// Get access to the inner tx [TxEip4844]. - pub const fn tx(&self) -> &TxEip4844 { - &self.tx - } - - /// Get access to the inner sidecar [BlobTransactionSidecar]. - pub const fn sidecar(&self) -> &BlobTransactionSidecar { - &self.sidecar - } - - /// Consumes the [TxEip4844WithSidecar] and returns the inner [TxEip4844]. - pub fn into_tx(self) -> TxEip4844 { - self.tx - } - - /// Consumes the [TxEip4844WithSidecar] and returns the inner sidecar [BlobTransactionSidecar]. - pub fn into_sidecar(self) -> BlobTransactionSidecar { - self.sidecar - } - - /// Consumes the [TxEip4844WithSidecar] and returns the inner [TxEip4844] and - /// [BlobTransactionSidecar]. - pub fn into_parts(self) -> (TxEip4844, BlobTransactionSidecar) { - (self.tx, self.sidecar) - } - - /// Encodes the transaction from RLP bytes, including the signature. This __does not__ encode a - /// tx type byte or string header. - /// - /// This __does__ encode a list header and include a signature. - /// - /// This encodes the following: - /// `rlp([tx_payload, blobs, commitments, proofs])` - /// - /// where `tx_payload` is the RLP encoding of the [TxEip4844] transaction fields: - /// `rlp([chain_id, nonce, max_priority_fee_per_gas, ..., v, r, s])` - pub(crate) fn encode_with_signature_fields(&self, signature: &Signature, out: &mut dyn BufMut) { - let inner_payload_length = self.tx.fields_len() + signature.rlp_vrs_len(); - let inner_header = Header { list: true, payload_length: inner_payload_length }; - - let outer_payload_length = - inner_header.length() + inner_payload_length + self.sidecar.fields_len(); - let outer_header = Header { list: true, payload_length: outer_payload_length }; - - // write the two headers - outer_header.encode(out); - inner_header.encode(out); - - // now write the fields - self.tx.encode_fields(out); - signature.write_rlp_vrs(out); - self.sidecar.encode_inner(out); - } - - /// Decodes the transaction from RLP bytes, including the signature. - /// - /// This __does not__ expect the bytes to start with a transaction type byte or string - /// header. - /// - /// This __does__ expect the bytes to start with a list header and include a signature. - /// - /// This is the inverse of [TxEip4844WithSidecar::encode_with_signature_fields]. - pub(crate) fn decode_signed_fields(buf: &mut &[u8]) -> alloy_rlp::Result> { - let header = Header::decode(buf)?; - if !header.list { - return Err(alloy_rlp::Error::UnexpectedString); - } - - // record original length so we can check encoding - let original_len = buf.len(); - - // decode the inner tx - let inner_tx = TxEip4844::decode_signed_fields(buf)?; - - // decode the sidecar - let sidecar = BlobTransactionSidecar::decode_inner(buf)?; - - if buf.len() + header.payload_length != original_len { - return Err(alloy_rlp::Error::ListLengthMismatch { - expected: header.payload_length, - got: original_len - buf.len(), - }); - } - - let (tx, signature, hash) = inner_tx.into_parts(); - - // create unchecked signed tx because these checks should have happened during construction - // of `Signed` in `TxEip4844::decode_signed_fields` - Ok(Signed::new_unchecked( - TxEip4844WithSidecar::from_tx_and_sidecar(tx, sidecar), - signature, - hash, - )) - } -} - -impl SignableTransaction for TxEip4844WithSidecar { - fn set_chain_id(&mut self, chain_id: ChainId) { - self.tx.chain_id = chain_id; - } - - fn encode_for_signing(&self, out: &mut dyn alloy_rlp::BufMut) { - // A signature for a [TxEip4844WithSidecar] is a signature over the [TxEip4844] EIP-2718 - // payload fields: - // (BLOB_TX_TYPE || - // rlp([chain_id, nonce, max_priority_fee_per_gas, max_fee_per_gas, gas_limit, to, value, - // data, access_list, max_fee_per_blob_gas, blob_versioned_hashes])) - self.tx.encode_for_signing(out); - } - - fn into_signed(self, signature: Signature) -> Signed { - let mut buf = Vec::with_capacity(self.tx.encoded_len_with_signature(&signature, false)); - // The sidecar is NOT included in the signed payload, only the transaction fields and the - // type byte. Include the type byte. - // - // Include the transaction fields, making sure to __not__ use the sidecar, and __not__ - // encode a header. - self.tx.encode_with_signature(&signature, &mut buf, false); - let hash = keccak256(&buf); - - // Drop any v chain id value to ensure the signature format is correct at the time of - // combination for an EIP-4844 transaction. V should indicate the y-parity of the - // signature. - Signed::new_unchecked(self, signature.with_parity_bool(), hash) - } - - fn payload_len_for_signature(&self) -> usize { - // The payload length is the length of the `transaction_payload_body` list. - // The sidecar is NOT included. - self.tx.payload_len_for_signature() - } -} - -impl Transaction for TxEip4844WithSidecar { - fn chain_id(&self) -> Option { - self.tx.chain_id() - } - - fn gas_limit(&self) -> u128 { - self.tx.gas_limit() - } - - fn gas_price(&self) -> Option { - self.tx.gas_price() - } - - fn nonce(&self) -> u64 { - self.tx.nonce() - } - - fn to(&self) -> TxKind { - self.tx.to() - } - - fn value(&self) -> U256 { - self.tx.value() - } - - fn input(&self) -> &[u8] { - self.tx.input() - } -} - -/// This represents a set of blobs, and its corresponding commitments and proofs. -#[derive(Debug, Default, Clone, PartialEq, Eq, Hash)] -#[repr(C)] -#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))] -pub struct BlobTransactionSidecar { - /// The blob data. - pub blobs: Vec, - /// The blob commitments. - pub commitments: Vec, - /// The blob proofs. - pub proofs: Vec, -} - -impl BlobTransactionSidecar { - /// Constructs a new [BlobTransactionSidecar] from a set of blobs, commitments, and proofs. - pub fn new(blobs: Vec, commitments: Vec, proofs: Vec) -> Self { - Self { blobs, commitments, proofs } - } - - /// Returns an iterator over the versioned hashes of the commitments. - pub fn versioned_hashes(&self) -> impl Iterator + '_ { - self.commitments.iter().map(|c| kzg_to_versioned_hash(c.as_slice())) - } - - /// Returns the versioned hash for the blob at the given index, if it - /// exists. - pub fn versioned_hash_for_blob(&self, blob_index: usize) -> Option { - self.commitments.get(blob_index).map(|c| kzg_to_versioned_hash(c.as_slice())) - } - - /// Encodes the inner [BlobTransactionSidecar] fields as RLP bytes, without a RLP header. - /// - /// This encodes the fields in the following order: - /// - `blobs` - /// - `commitments` - /// - `proofs` - #[inline] - pub(crate) fn encode_inner(&self, out: &mut dyn BufMut) { - BlobTransactionSidecarRlp::wrap_ref(self).encode(out); - } - - /// Decodes the inner [BlobTransactionSidecar] fields from RLP bytes, without a RLP header. - /// - /// This decodes the fields in the following order: - /// - `blobs` - /// - `commitments` - /// - `proofs` - pub(crate) fn decode_inner(buf: &mut &[u8]) -> alloy_rlp::Result { - Ok(BlobTransactionSidecarRlp::decode(buf)?.unwrap()) - } - - /// Outputs the RLP length of the [BlobTransactionSidecar] fields, without a RLP header. - pub fn fields_len(&self) -> usize { - BlobTransactionSidecarRlp::wrap_ref(self).fields_len() - } - - /// Calculates a size heuristic for the in-memory size of the [BlobTransactionSidecar]. - #[inline] - pub fn size(&self) -> usize { - self.blobs.len() * BYTES_PER_BLOB + // blobs - self.commitments.len() * BYTES_PER_COMMITMENT + // commitments - self.proofs.len() * BYTES_PER_PROOF // proofs - } -} - -impl Encodable for BlobTransactionSidecar { - /// Encodes the inner [BlobTransactionSidecar] fields as RLP bytes, without a RLP header. - fn encode(&self, s: &mut dyn BufMut) { - self.encode_inner(s); - } - - fn length(&self) -> usize { - self.fields_len() - } -} - -impl Decodable for BlobTransactionSidecar { - /// Decodes the inner [BlobTransactionSidecar] fields from RLP bytes, without a RLP header. - fn decode(buf: &mut &[u8]) -> alloy_rlp::Result { - Self::decode_inner(buf) - } -} - -// Wrapper for c-kzg rlp -#[repr(C)] -struct BlobTransactionSidecarRlp { - blobs: Vec>, - commitments: Vec>, - proofs: Vec>, -} - -const _: [(); mem::size_of::()] = - [(); mem::size_of::()]; - -impl BlobTransactionSidecarRlp { - const fn wrap_ref(other: &BlobTransactionSidecar) -> &Self { - // SAFETY: Same repr and size - unsafe { &*(other as *const BlobTransactionSidecar).cast::() } - } - - fn unwrap(self) -> BlobTransactionSidecar { - // SAFETY: Same repr and size - unsafe { mem::transmute(self) } - } - - fn encode(&self, out: &mut dyn BufMut) { - // Encode the blobs, commitments, and proofs - self.blobs.encode(out); - self.commitments.encode(out); - self.proofs.encode(out); - } - - fn fields_len(&self) -> usize { - self.blobs.length() + self.commitments.length() + self.proofs.length() - } - - fn decode(buf: &mut &[u8]) -> alloy_rlp::Result { - Ok(Self { - blobs: Decodable::decode(buf)?, - commitments: Decodable::decode(buf)?, - proofs: Decodable::decode(buf)?, - }) - } -} - -/// Calculates the versioned hash for a KzgCommitment -/// -/// Specified in [EIP-4844](https://eips.ethereum.org/EIPS/eip-4844#header-extension) -pub(crate) fn kzg_to_versioned_hash(commitment: &[u8]) -> B256 { - debug_assert_eq!(commitment.len(), 48, "commitment length is not 48"); - let mut res = Sha256::digest(commitment); - res[0] = alloy_eips::eip4844::VERSIONED_HASH_VERSION_KZG; - B256::new(res.into()) -} - -#[cfg(test)] -mod tests { - use super::{BlobTransactionSidecar, TxEip4844, TxEip4844WithSidecar}; - use crate::OpTxEnvelope; - use alloy_consensus::SignableTransaction; - use alloy_primitives::{Signature, U256}; - use alloy_rlp::{Decodable, Encodable}; - - #[cfg(not(feature = "kzg"))] - use alloy_eips::eip4844::{Blob, Bytes48}; - - #[cfg(feature = "kzg")] - use c_kzg::{Blob, Bytes48}; - - #[test] - fn different_sidecar_same_hash() { - // this should make sure that the hash calculated for the `into_signed` conversion does not - // change if the sidecar is different - let tx = TxEip4844 { - chain_id: 1, - nonce: 1, - max_priority_fee_per_gas: 1, - max_fee_per_gas: 1, - gas_limit: 1, - to: Default::default(), - value: U256::from(1), - access_list: Default::default(), - blob_versioned_hashes: vec![Default::default()], - max_fee_per_blob_gas: 1, - input: Default::default(), - }; - let sidecar = BlobTransactionSidecar { - blobs: vec![Blob::from([2; 131072])], - commitments: vec![Bytes48::from([3; 48])], - proofs: vec![Bytes48::from([4; 48])], - }; - let mut tx = TxEip4844WithSidecar { tx, sidecar }; - let signature = Signature::test_signature(); - - // turn this transaction into_signed - let expected_signed = tx.clone().into_signed(signature); - - // change the sidecar, adding a single (blob, commitment, proof) pair - tx.sidecar = BlobTransactionSidecar { - blobs: vec![Blob::from([1; 131072])], - commitments: vec![Bytes48::from([1; 48])], - proofs: vec![Bytes48::from([1; 48])], - }; - - // turn this transaction into_signed - let actual_signed = tx.into_signed(signature); - - // the hashes should be the same - assert_eq!(expected_signed.hash(), actual_signed.hash()); - - // convert to envelopes - let expected_envelope: OpTxEnvelope = expected_signed.into(); - let actual_envelope: OpTxEnvelope = actual_signed.into(); - - // now encode the transaction and check the length - let mut buf = Vec::new(); - expected_envelope.encode(&mut buf); - assert_eq!(buf.len(), expected_envelope.length()); - - // ensure it's also the same size that `actual` claims to be, since we just changed the - // sidecar values. - assert_eq!(buf.len(), actual_envelope.length()); - - // now decode the transaction and check the values - let decoded = OpTxEnvelope::decode(&mut &buf[..]).unwrap(); - assert_eq!(decoded, expected_envelope); - } -} diff --git a/crates/op-consensus/src/transaction/eip4844/builder.rs b/crates/op-consensus/src/transaction/eip4844/builder.rs deleted file mode 100644 index 5b21aedf..00000000 --- a/crates/op-consensus/src/transaction/eip4844/builder.rs +++ /dev/null @@ -1,426 +0,0 @@ -#[cfg(not(feature = "kzg"))] -use alloy_eips::eip4844::Blob; -#[cfg(feature = "kzg")] -use c_kzg::{Blob, KzgCommitment, KzgProof}; - -#[cfg(not(feature = "std"))] -use alloc::vec::Vec; - -use super::utils::WholeFe; -use alloy_eips::eip4844::{BYTES_PER_BLOB, FIELD_ELEMENTS_PER_BLOB}; -use core::cmp; - -/// A builder for creating a [`BlobTransactionSidecar`]. -/// -/// [`BlobTransactionSidecar`]: crate::BlobTransactionSidecar -#[derive(Debug, Clone)] -pub struct PartialSidecar { - /// The blobs in the sidecar. - blobs: Vec, - /// The number of field elements that we have ingested, total. - fe: usize, -} - -impl Default for PartialSidecar { - fn default() -> Self { - Self::new() - } -} - -impl PartialSidecar { - /// Create a new builder, and push an empty blob to it. This is the default - /// constructor, and allocates space for 2 blobs (256 KiB). If you want to - /// preallocate a specific number of blobs, use - /// [`PartialSidecar::with_capacity`]. - pub fn new() -> Self { - Self::with_capacity(2) - } - - /// Create a new builder, preallocating room for `capacity` blobs, and push - /// an empty blob to it. - pub fn with_capacity(capacity: usize) -> Self { - let mut blobs = Vec::with_capacity(capacity); - blobs.push(Blob::new([0u8; BYTES_PER_BLOB])); - Self { blobs, fe: 0 } - } - - /// Get a reference to the blobs currently in the builder. - pub fn blobs(&self) -> &[Blob] { - &self.blobs - } - - /// Get the number of unused field elements that have been allocated - fn free_fe(&self) -> usize { - self.blobs.len() * FIELD_ELEMENTS_PER_BLOB as usize - self.fe - } - - /// Calculate the length of used field elements IN BYTES in the builder. - /// - /// This is always strictly greater than the number of bytes that have been - /// ingested. - pub const fn len(&self) -> usize { - self.fe * 32 - } - - /// Check if the builder is empty. - pub const fn is_empty(&self) -> bool { - self.fe == 0 - } - - /// Push an empty blob to the builder. - fn push_empty_blob(&mut self) { - self.blobs.push(Blob::new([0u8; BYTES_PER_BLOB])); - } - - /// Allocate enough space for the required number of new field elements. - pub fn alloc_fes(&mut self, required_fe: usize) { - while self.free_fe() < required_fe { - self.push_empty_blob() - } - } - - /// Get the number of used field elements in the current blob. - const fn fe_in_current_blob(&self) -> usize { - self.fe % FIELD_ELEMENTS_PER_BLOB as usize - } - - /// Get the index of the first unused field element in the current blob. - const fn first_unused_fe_index_in_current_blob(&self) -> usize { - self.fe_in_current_blob() - } - - /// Get a mutable reference to the current blob. - fn current_blob_mut(&mut self) -> &mut Blob { - self.blobs.last_mut().expect("never empty") - } - - /// Get a mutable reference to the field element at the given index, in - /// the current blob. - fn fe_at_mut(&mut self, index: usize) -> &mut [u8] { - &mut self.current_blob_mut()[index * 32..(index + 1) * 32] - } - - /// Get a mutable reference to the next unused field element. - fn next_unused_fe_mut(&mut self) -> &mut [u8] { - self.fe_at_mut(self.first_unused_fe_index_in_current_blob()) - } - - /// Ingest a field element into the current blobs. - pub fn ingest_valid_fe(&mut self, data: WholeFe<'_>) { - self.alloc_fes(1); - self.next_unused_fe_mut().copy_from_slice(data.as_ref()); - self.fe += 1; - } - - /// Ingest a partial FE into the current blobs. - /// - /// # Panics - /// - /// If the data is >=32 bytes. Or if there are not enough free FEs to - /// encode the data. - pub fn ingest_partial_fe(&mut self, data: &[u8]) { - let fe = self.next_unused_fe_mut(); - fe[1..1 + data.len()].copy_from_slice(data); - self.fe += 1; - } -} - -/// A strategy for coding and decoding data into sidecars. Coder instances are -/// responsible for encoding and decoding data into and from the sidecar. They -/// are called by the [`SidecarBuilder`] during the [`ingest`], -/// [`take`], and (if `c_kzg` feature enabled) `build` methods. -/// -/// This trait allows different downstream users to use different bit-packing -/// strategies. For example, a simple coder might only use the last 31 bytes of -/// each blob, while a more complex coder might use a more sophisticated -/// strategy to pack data into the low 6 bits of the top byte. -/// -/// [`ingest`]: SidecarBuilder::ingest -/// [`take`]: SidecarBuilder::take -pub trait SidecarCoder { - /// Calculate the number of field elements required to store the given - /// data. - fn required_fe(&self, data: &[u8]) -> usize; - - /// Code a slice of data into the builder. - fn code(&mut self, builder: &mut PartialSidecar, data: &[u8]); - - /// Finish the sidecar, and commit to the data. This method should empty - /// any buffer or scratch space in the coder, and is called by - /// [`SidecarBuilder`]'s `take` and `build` methods. - fn finish(self, builder: &mut PartialSidecar); - - /// Decode all slices of data from the blobs. - fn decode_all(&mut self, blobs: &[Blob]) -> Option>>; -} - -/// Simple coder that only uses the last 31 bytes of each blob. This is the -/// default coder for the [`SidecarBuilder`]. -/// -/// # Note -/// -/// Because this coder sacrifices around 3% of total sidecar space, we do not -/// recommend its use in production. It is provided for convenience and -/// non-prod environments. -/// -/// # Behavior -/// -/// This coder encodes data as follows: -/// - The first byte of every 32-byte word is empty. -/// - Data is pre-pended with a 64-bit big-endian length prefix, which is right padded with zeros to -/// form a complete word. -/// - The rest of the data is packed into the remaining 31 bytes of each word. -/// - If the data is not a multiple of 31 bytes, the last word is right-padded with zeros. -/// -/// This means that the following regions cannot be used to store data, and are -/// considered "wasted": -/// -/// - The first byte of every 32-byte word. -/// - The right padding on the header word containing the data length. -/// - Any right padding on the last word for each piece of data. -#[derive(Debug, Copy, Clone, Default)] -#[non_exhaustive] -pub struct SimpleCoder; - -impl SimpleCoder { - /// Decode an some bytes from an iterator of valid FEs. - /// - /// Returns `Ok(Some(data))` if there is some data. - /// Returns `Ok(None)` if there is no data (length prefix is 0). - /// Returns `Err(())` if there is an error. - fn decode_one<'a>(mut fes: impl Iterator>) -> Result>, ()> { - let first = fes.next().ok_or(())?; - let mut num_bytes = u64::from_be_bytes(first.as_ref()[1..9].try_into().unwrap()) as usize; - - // if no more bytes is 0, we're done - if num_bytes == 0 { - return Ok(None); - } - - let mut res = Vec::with_capacity(num_bytes); - while num_bytes > 0 { - let to_copy = cmp::min(31, num_bytes); - let fe = fes.next().ok_or(())?; - res.extend_from_slice(&fe.as_ref()[1..1 + to_copy]); - num_bytes -= to_copy; - } - Ok(Some(res)) - } -} - -impl SidecarCoder for SimpleCoder { - fn required_fe(&self, data: &[u8]) -> usize { - data.len().div_ceil(31) + 1 - } - - fn code(&mut self, builder: &mut PartialSidecar, mut data: &[u8]) { - if data.is_empty() { - return; - } - - // first FE is the number of following bytes - builder.ingest_partial_fe(&(data.len() as u64).to_be_bytes()); - - // ingest the rest of the data - while !data.is_empty() { - let (left, right) = data.split_at(cmp::min(31, data.len())); - builder.ingest_partial_fe(left); - data = right - } - } - - /// No-op - fn finish(self, _builder: &mut PartialSidecar) {} - - fn decode_all(&mut self, blobs: &[Blob]) -> Option>> { - let mut fes = - blobs.iter().flat_map(|blob| blob.chunks(32).map(WholeFe::new)).map(Option::unwrap); - - let mut res = Vec::new(); - loop { - match Self::decode_one(&mut fes) { - Ok(Some(data)) => res.push(data), - Ok(None) => break, - Err(()) => return None, - } - } - Some(res) - } -} - -/// Build a [`BlobTransactionSidecar`] from an arbitrary amount of data. -/// -/// This is useful for creating a sidecar from a large amount of data, -/// which is then split into blobs. It delays KZG commitments and proofs -/// until all data is ready. -/// -/// [`BlobTransactionSidecar`]: crate::BlobTransactionSidecar -#[derive(Debug, Clone)] -pub struct SidecarBuilder { - /// The blob array we will code data into - inner: PartialSidecar, - /// The coder to use for ingesting and decoding data. - coder: T, -} - -impl Default for SidecarBuilder -where - T: Default + SidecarCoder, -{ - fn default() -> Self { - Self::new() - } -} - -impl SidecarBuilder { - /// Instantiate a new builder and new coder instance. - /// - /// By default, this allocates space for 2 blobs (256 KiB). If you want to - /// preallocate a specific number of blobs, use - /// [`SidecarBuilder::with_capacity`]. - pub fn new() -> Self { - Self::from_coder(T::default()) - } - - /// Create a new builder from a slice of data by calling - /// [`SidecarBuilder::from_coder_and_data`] - pub fn from_slice(data: &[u8]) -> SidecarBuilder { - Self::from_coder_and_data(T::default(), data) - } - - /// Create a new builder with a pre-allocated capacity. This capacity is - /// measured in blobs, each of which is 128 KiB. - pub fn with_capacity(capacity: usize) -> Self { - Self::from_coder_and_capacity(T::default(), capacity) - } -} - -impl SidecarBuilder { - /// Instantiate a new builder with the provided coder and capacity. This - /// capacity is measured in blobs, each of which is 128 KiB. - pub fn from_coder_and_capacity(coder: T, capacity: usize) -> Self { - Self { inner: PartialSidecar::with_capacity(capacity), coder } - } - - /// Instantiate a new builder with the provided coder. - /// - /// This is equivalent to calling - /// [`SidecarBuilder::from_coder_and_capacity`] with a capacity of 1. - /// If you want to preallocate a specific number of blobs, use - /// [`SidecarBuilder::from_coder_and_capacity`]. - pub fn from_coder(coder: T) -> Self { - Self::from_coder_and_capacity(coder, 1) - } - - /// Calculate the length of bytes used by field elements in the builder. - /// - /// This is always strictly greater than the number of bytes that have been - /// ingested. - pub const fn len(&self) -> usize { - self.inner.len() - } - - /// Check if the builder is empty. - pub const fn is_empty(&self) -> bool { - self.inner.is_empty() - } - - /// Create a new builder from a slice of data. - pub fn from_coder_and_data(coder: T, data: &[u8]) -> SidecarBuilder { - let required_fe = coder.required_fe(data); - let mut this = Self::from_coder_and_capacity( - coder, - required_fe.div_ceil(FIELD_ELEMENTS_PER_BLOB as usize), - ); - this.ingest(data); - this - } - - /// Ingest a slice of data into the builder. - pub fn ingest(&mut self, data: &[u8]) { - self.inner.alloc_fes(self.coder.required_fe(data)); - self.coder.code(&mut self.inner, data); - } - - /// Build the sidecar from the data with the provided settings. - #[cfg(feature = "kzg")] - pub fn build_with_settings( - self, - settings: &c_kzg::KzgSettings, - ) -> Result { - let mut commitments = Vec::with_capacity(self.inner.blobs.len()); - let mut proofs = Vec::with_capacity(self.inner.blobs.len()); - for blob in self.inner.blobs.iter() { - let commitment = KzgCommitment::blob_to_kzg_commitment(blob, settings)?; - let proof = KzgProof::compute_blob_kzg_proof(blob, &commitment.to_bytes(), settings)?; - commitments.push(commitment.to_bytes()); - proofs.push(proof.to_bytes()); - } - - Ok(crate::BlobTransactionSidecar { blobs: self.inner.blobs, commitments, proofs }) - } - - /// Build the sidecar from the data, with default (Ethereum Mainnet) - /// settings. - #[cfg(feature = "kzg")] - pub fn build(self) -> Result { - self.build_with_settings(crate::EnvKzgSettings::Default.get()) - } - - /// Take the blobs from the builder, without committing them to a KZG proof. - pub fn take(self) -> Vec { - self.inner.blobs - } -} - -impl FromIterator for SidecarBuilder -where - T: SidecarCoder + Default, - R: AsRef<[u8]>, -{ - fn from_iter>(iter: I) -> Self { - let mut this = Self::new(); - for data in iter { - this.ingest(data.as_ref()); - } - this - } -} - -#[cfg(test)] -mod tests { - use super::*; - use alloy_eips::eip4844::USABLE_BYTES_PER_BLOB; - - #[test] - fn ingestion_strategy() { - let mut builder = PartialSidecar::new(); - let data = &[vec![1u8; 32], vec![2u8; 372], vec![3u8; 17], vec![4u8; 5]]; - - data.iter().for_each(|data| SimpleCoder.code(&mut builder, data.as_slice())); - - let decoded = SimpleCoder.decode_all(builder.blobs()).unwrap(); - assert_eq!(decoded, data); - } - - #[test] - fn it_ingests() { - // test ingesting a lot of data. - let data = [ - vec![1u8; 32], - vec![2u8; 372], - vec![3u8; 17], - vec![4u8; 5], - vec![5u8; USABLE_BYTES_PER_BLOB + 2], - ]; - - let mut builder = data.iter().collect::>(); - - let expected_fe = data.iter().map(|d| SimpleCoder.required_fe(d)).sum::(); - assert_eq!(builder.len(), expected_fe * 32); - - // consume 2 more - builder.ingest("hello".as_bytes()); - assert_eq!(builder.len(), expected_fe * 32 + 64); - } -} diff --git a/crates/op-consensus/src/transaction/eip4844/utils.rs b/crates/op-consensus/src/transaction/eip4844/utils.rs deleted file mode 100644 index 602a581e..00000000 --- a/crates/op-consensus/src/transaction/eip4844/utils.rs +++ /dev/null @@ -1,77 +0,0 @@ -//! Utilities for working with EIP-4844 field elements and implementing -//! [`SidecarCoder`]. -//! -//! [`SidecarCoder`]: crate::SidecarCoder -use alloy_eips::eip4844::USABLE_BITS_PER_FIELD_ELEMENT; - -/// Determine whether a slice of bytes can be contained in a field element. -pub const fn fits_in_fe(data: &[u8]) -> bool { - match data.len() { - 33.. => false, - 32 => data[0] & 0b1100_0000 == 0, // first two bits must be zero - _ => true, - } -} - -/// Calculate the number of field elements required to store the given -/// number of bytes. -pub const fn minimum_fe_for_bytes(bytes: usize) -> usize { - (bytes * 8).div_ceil(USABLE_BITS_PER_FIELD_ELEMENT) -} - -/// Calculate the number of field elements required to store the given data. -pub const fn minimum_fe(data: &[u8]) -> usize { - minimum_fe_for_bytes(data.len()) -} - -/// A wrapper for a slice of bytes that is a whole, valid field element. -#[derive(Debug, Copy, Clone)] -pub struct WholeFe<'a>(&'a [u8]); - -impl<'a> WholeFe<'a> { - const fn new_unchecked(data: &'a [u8]) -> Self { - Self(data) - } - - /// Instantiate a new `WholeFe` from a slice of bytes, if it is a valid - /// field element. - pub const fn new(data: &'a [u8]) -> Option { - if data.len() == 32 && fits_in_fe(data) { - Some(Self::new_unchecked(data)) - } else { - None - } - } -} - -impl AsRef<[u8]> for WholeFe<'_> { - fn as_ref(&self) -> &[u8] { - self.0 - } -} - -#[cfg(test)] -mod test { - use alloy_eips::eip4844::{FIELD_ELEMENTS_PER_BLOB, USABLE_BYTES_PER_BLOB}; - - use super::*; - #[test] - fn calc_required_fe() { - assert_eq!(minimum_fe(&[0u8; 32]), 2); - assert_eq!(minimum_fe(&[0u8; 31]), 1); - assert_eq!(minimum_fe(&[0u8; 33]), 2); - assert_eq!(minimum_fe(&[0u8; 64]), 3); - assert_eq!(minimum_fe(&[0u8; 65]), 3); - assert_eq!(minimum_fe_for_bytes(USABLE_BYTES_PER_BLOB), FIELD_ELEMENTS_PER_BLOB as usize); - } - - #[test] - fn calc_is_valid_field_element() { - assert!(fits_in_fe(&[0u8; 32])); - assert!(!fits_in_fe(&[0u8; 33])); - - assert!(WholeFe::new(&[0u8; 32]).is_some()); - assert!(WholeFe::new(&[0u8; 33]).is_none()); - assert!(WholeFe::new(&[0u8; 31]).is_none()); - } -} diff --git a/crates/op-consensus/src/transaction/envelope.rs b/crates/op-consensus/src/transaction/envelope.rs index d9e71f5c..a06f483c 100644 --- a/crates/op-consensus/src/transaction/envelope.rs +++ b/crates/op-consensus/src/transaction/envelope.rs @@ -1,7 +1,7 @@ -use crate::{ - TxDeposit, TxEip1559, TxEip2930, TxEip4844, TxEip4844Variant, TxEip4844WithSidecar, TxLegacy, +use crate::TxDeposit; +use alloy_consensus::{ + Signed, TxEip1559, TxEip2930, TxEip4844, TxEip4844Variant, TxEip4844WithSidecar, TxLegacy, }; -use alloy_consensus::Signed; use alloy_eips::eip2718::{Decodable2718, Eip2718Error, Encodable2718}; use alloy_rlp::{Decodable, Encodable, Header}; use core::mem; @@ -338,7 +338,7 @@ mod tests { // Test vector from https://sepolia.etherscan.io/tx/0x9a22ccb0029bc8b0ddd073be1a1d923b7ae2b2ea52100bae0db4424f9107e9c0 // Blobscan: https://sepolia.blobscan.com/tx/0x9a22ccb0029bc8b0ddd073be1a1d923b7ae2b2ea52100bae0db4424f9107e9c0 fn test_decode_live_4844_tx() { - use crate::OpTransaction; + use alloy_consensus::Transaction; use alloy_primitives::{address, b256}; // https://sepolia.etherscan.io/getRawTx?tx=0x9a22ccb0029bc8b0ddd073be1a1d923b7ae2b2ea52100bae0db4424f9107e9c0 @@ -545,7 +545,7 @@ mod tests { #[test] #[cfg(feature = "serde")] fn test_serde_roundtrip_eip4844() { - use crate::BlobTransactionSidecar; + use alloy_consensus::BlobTransactionSidecar; let tx = TxEip4844Variant::TxEip4844(TxEip4844 { chain_id: 1, diff --git a/crates/op-consensus/src/transaction/legacy.rs b/crates/op-consensus/src/transaction/legacy.rs deleted file mode 100644 index 9377a99e..00000000 --- a/crates/op-consensus/src/transaction/legacy.rs +++ /dev/null @@ -1,345 +0,0 @@ -use alloy_consensus::{SignableTransaction, Signed, Transaction}; -use alloy_primitives::{keccak256, Bytes, ChainId, Signature, TxKind, U256}; -use alloy_rlp::{length_of_length, BufMut, Decodable, Encodable, Header, Result}; -use core::mem; - -#[cfg(not(feature = "std"))] -use alloc::vec::Vec; - -/// Legacy transaction. -#[derive(Debug, Clone, PartialEq, Eq, Hash, Default)] -#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))] -#[cfg_attr(feature = "serde", serde(rename_all = "camelCase"))] -pub struct TxLegacy { - /// Added as EIP-155: Simple replay attack protection - #[cfg_attr( - feature = "serde", - serde( - default, - with = "alloy_serde::u64_hex_or_decimal_opt", - skip_serializing_if = "Option::is_none", - ) - )] - pub chain_id: Option, - /// A scalar value equal to the number of transactions sent by the sender; formally Tn. - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u64_hex_or_decimal"))] - pub nonce: u64, - /// A scalar value equal to the number of - /// Wei to be paid per unit of gas for all computation - /// costs incurred as a result of the execution of this transaction; formally Tp. - /// - /// As ethereum circulation is around 120mil eth as of 2022 that is around - /// 120000000000000000000000000 wei we are safe to use u128 as its max number is: - /// 340282366920938463463374607431768211455 - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub gas_price: u128, - /// A scalar value equal to the maximum - /// amount of gas that should be used in executing - /// this transaction. This is paid up-front, before any - /// computation is done and may not be increased - /// later; formally Tg. - #[cfg_attr(feature = "serde", serde(with = "alloy_serde::u128_hex_or_decimal"))] - pub gas_limit: u128, - /// The 160-bit address of the message call’s recipient or, for a contract creation - /// transaction, ∅, used here to denote the only member of B0 ; formally Tt. - #[cfg_attr(feature = "serde", serde(default, skip_serializing_if = "TxKind::is_create"))] - pub to: TxKind, - /// A scalar value equal to the number of Wei to - /// be transferred to the message call’s recipient or, - /// in the case of contract creation, as an endowment - /// to the newly created account; formally Tv. - pub value: U256, - /// Input has two uses depending if transaction is Create or Call (if `to` field is None or - /// Some). pub init: An unlimited size byte array specifying the - /// EVM-code for the account initialisation procedure CREATE, - /// data: An unlimited size byte array specifying the - /// input data of the message call, formally Td. - pub input: Bytes, -} - -impl TxLegacy { - /// The EIP-2718 transaction type. - pub const TX_TYPE: isize = 0; - - /// Calculates a heuristic for the in-memory size of the [TxLegacy] transaction. - #[inline] - pub fn size(&self) -> usize { - mem::size_of::>() + // chain_id - mem::size_of::() + // nonce - mem::size_of::() + // gas_price - mem::size_of::() + // gas_limit - self.to.size() + // to - mem::size_of::() + // value - self.input.len() // input - } - - /// Outputs the length of the transaction's fields, without a RLP header or length of the - /// eip155 fields. - pub(crate) fn fields_len(&self) -> usize { - let mut len = 0; - len += self.nonce.length(); - len += self.gas_price.length(); - len += self.gas_limit.length(); - len += self.to.length(); - len += self.value.length(); - len += self.input.0.length(); - len - } - - /// Encodes only the transaction's fields into the desired buffer, without a RLP header or - /// eip155 fields. - pub(crate) fn encode_fields(&self, out: &mut dyn BufMut) { - self.nonce.encode(out); - self.gas_price.encode(out); - self.gas_limit.encode(out); - self.to.encode(out); - self.value.encode(out); - self.input.0.encode(out); - } - - /// Encodes the transaction from RLP bytes, including the signature. This __does not__ encode a - /// tx type byte or string header. - /// - /// This __does__ encode a list header and include a signature. - pub fn encode_with_signature_fields( - &self, - signature: &Signature, - out: &mut dyn alloy_rlp::BufMut, - ) { - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - let header = Header { list: true, payload_length }; - header.encode(out); - self.encode_fields(out); - signature.write_rlp_vrs(out); - } - - /// Returns what the encoded length should be, if the transaction were RLP encoded with the - /// given signature. - pub(crate) fn encoded_len_with_signature(&self, signature: &Signature) -> usize { - let payload_length = self.fields_len() + signature.rlp_vrs_len(); - Header { list: true, payload_length }.length() + payload_length - } - - /// Encodes EIP-155 arguments into the desired buffer. Only encodes values - /// for legacy transactions. - pub(crate) fn encode_eip155_signing_fields(&self, out: &mut dyn BufMut) { - // if this is a legacy transaction without a chain ID, it must be pre-EIP-155 - // and does not need to encode the chain ID for the signature hash encoding - if let Some(id) = self.chain_id { - // EIP-155 encodes the chain ID and two zeroes - id.encode(out); - 0x00u8.encode(out); - 0x00u8.encode(out); - } - } - - /// Outputs the length of EIP-155 fields. Only outputs a non-zero value for EIP-155 legacy - /// transactions. - pub(crate) fn eip155_fields_len(&self) -> usize { - if let Some(id) = self.chain_id { - // EIP-155 encodes the chain ID and two zeroes, so we add 2 to the length of the chain - // ID to get the length of all 3 fields - // len(chain_id) + (0x00) + (0x00) - id.length() + 2 - } else { - // this is either a pre-EIP-155 legacy transaction or a typed transaction - 0 - } - } - - /// Decodes the transaction from RLP bytes, including the signature. - /// - /// This __does not__ expect the bytes to start with a transaction type byte or string - /// header. - /// - /// This __does__ expect the bytes to start with a list header and include a signature. - pub(crate) fn decode_signed_fields(buf: &mut &[u8]) -> alloy_rlp::Result> { - let header = Header::decode(buf)?; - if !header.list { - return Err(alloy_rlp::Error::UnexpectedString); - } - - // record original length so we can check encoding - let original_len = buf.len(); - - let mut tx = Self::decode_fields(buf)?; - let signature = Signature::decode_rlp_vrs(buf)?; - - // extract chain id from signature - let v = signature.v(); - tx.chain_id = v.chain_id(); - - let signed = tx.into_signed(signature); - if buf.len() + header.payload_length != original_len { - return Err(alloy_rlp::Error::ListLengthMismatch { - expected: header.payload_length, - got: original_len - buf.len(), - }); - } - - Ok(signed) - } - - /// Decode the RLP fields of the transaction, without decoding an RLP - /// header. - pub(crate) fn decode_fields(data: &mut &[u8]) -> Result { - Ok(TxLegacy { - nonce: Decodable::decode(data)?, - gas_price: Decodable::decode(data)?, - gas_limit: Decodable::decode(data)?, - to: Decodable::decode(data)?, - value: Decodable::decode(data)?, - input: Decodable::decode(data)?, - chain_id: None, - }) - } -} - -impl Transaction for TxLegacy { - fn input(&self) -> &[u8] { - &self.input - } - - fn to(&self) -> TxKind { - self.to - } - - fn value(&self) -> U256 { - self.value - } - - fn chain_id(&self) -> Option { - self.chain_id - } - - fn nonce(&self) -> u64 { - self.nonce - } - - fn gas_limit(&self) -> u128 { - self.gas_limit - } - - fn gas_price(&self) -> Option { - Some(self.gas_price) - } -} - -impl SignableTransaction for TxLegacy { - fn set_chain_id(&mut self, chain_id: ChainId) { - self.chain_id = Some(chain_id); - } - - fn encode_for_signing(&self, out: &mut dyn BufMut) { - Header { list: true, payload_length: self.fields_len() + self.eip155_fields_len() } - .encode(out); - self.encode_fields(out); - self.encode_eip155_signing_fields(out); - } - - fn payload_len_for_signature(&self) -> usize { - let payload_length = self.fields_len() + self.eip155_fields_len(); - // 'header length' + 'payload length' - Header { list: true, payload_length }.length() + payload_length - } - - fn into_signed(self, signature: Signature) -> Signed { - let mut buf = Vec::with_capacity(self.encoded_len_with_signature(&signature)); - self.encode_with_signature_fields(&signature, &mut buf); - let hash = keccak256(&buf); - Signed::new_unchecked(self, signature, hash) - } -} - -impl Encodable for TxLegacy { - fn encode(&self, out: &mut dyn BufMut) { - self.encode_for_signing(out) - } - - fn length(&self) -> usize { - let payload_length = self.fields_len() + self.eip155_fields_len(); - // 'header length' + 'payload length' - length_of_length(payload_length) + payload_length - } -} - -impl Decodable for TxLegacy { - fn decode(data: &mut &[u8]) -> Result { - let header = Header::decode(data)?; - let remaining_len = data.len(); - - let transaction_payload_len = header.payload_length; - - if transaction_payload_len > remaining_len { - return Err(alloy_rlp::Error::InputTooShort); - } - - let mut transaction = Self::decode_fields(data)?; - - // If we still have data, it should be an eip-155 encoded chain_id - if !data.is_empty() { - transaction.chain_id = Some(Decodable::decode(data)?); - let _: U256 = Decodable::decode(data)?; // r - let _: U256 = Decodable::decode(data)?; // s - } - - let decoded = remaining_len - data.len(); - if decoded != transaction_payload_len { - return Err(alloy_rlp::Error::UnexpectedLength); - } - - Ok(transaction) - } -} - -#[cfg(all(test, feature = "k256"))] -mod tests { - use crate::{SignableTransaction, TxLegacy}; - use alloy_primitives::{address, b256, hex, Address, Signature, TxKind, B256, U256}; - - #[test] - fn recover_signer_legacy() { - let signer: Address = hex!("398137383b3d25c92898c656696e41950e47316b").into(); - let hash: B256 = - hex!("bb3a336e3f823ec18197f1e13ee875700f08f03e2cab75f0d0b118dabb44cba0").into(); - - let tx = TxLegacy { - chain_id: Some(1), - nonce: 0x18, - gas_price: 0xfa56ea00, - gas_limit: 119902, - to: TxKind::Call( hex!("06012c8cf97bead5deae237070f9587f8e7a266d").into()), - value: U256::from(0x1c6bf526340000u64), - input: hex!("f7d8c88300000000000000000000000000000000000000000000000000000000000cee6100000000000000000000000000000000000000000000000000000000000ac3e1").into(), - }; - - let sig = Signature::from_scalars_and_parity( - b256!("2a378831cf81d99a3f06a18ae1b6ca366817ab4d88a70053c41d7a8f0368e031"), - b256!("450d831a05b6e418724436c05c155e0a1b7b921015d0fbc2f667aed709ac4fb5"), - 37, - ) - .unwrap(); - - let signed_tx = tx.into_signed(sig); - - assert_eq!(*signed_tx.hash(), hash, "Expected same hash"); - assert_eq!(signed_tx.recover_signer().unwrap(), signer, "Recovering signer should pass."); - } - - #[test] - // Test vector from https://github.com/alloy-rs/alloy/issues/125 - fn decode_legacy_and_recover_signer() { - let raw_tx = "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"; - - let tx = TxLegacy::decode_signed_fields( - &mut alloy_primitives::hex::decode(raw_tx).unwrap().as_slice(), - ) - .unwrap(); - - let recovered = tx.recover_signer().unwrap(); - let expected = address!("a12e1462d0ceD572f396F58B6E2D03894cD7C8a4"); - - assert_eq!(tx.tx().chain_id, Some(1), "Expected same chain id"); - assert_eq!(expected, recovered, "Expected same signer"); - } -} diff --git a/crates/op-consensus/src/transaction/mod.rs b/crates/op-consensus/src/transaction/mod.rs index d2851193..49ecf808 100644 --- a/crates/op-consensus/src/transaction/mod.rs +++ b/crates/op-consensus/src/transaction/mod.rs @@ -1,28 +1,11 @@ #[cfg(not(feature = "std"))] use alloc::vec::Vec; -mod eip1559; -pub use eip1559::TxEip1559; - -mod eip2930; -pub use eip2930::TxEip2930; - -mod eip4844; -#[cfg(feature = "kzg")] -pub use eip4844::BlobTransactionValidationError; -pub use eip4844::{ - utils as eip4844_utils, Blob, BlobTransactionSidecar, Bytes48, SidecarBuilder, SidecarCoder, - SimpleCoder, TxEip4844, TxEip4844Variant, TxEip4844WithSidecar, -}; - mod optimism; pub use optimism::TxDeposit; mod envelope; pub use envelope::{OpTxEnvelope, OpTxType}; -mod legacy; -pub use legacy::TxLegacy; - mod typed; pub use typed::OpTypedTransaction; diff --git a/crates/op-consensus/src/transaction/typed.rs b/crates/op-consensus/src/transaction/typed.rs index 9ce51d25..89307811 100644 --- a/crates/op-consensus/src/transaction/typed.rs +++ b/crates/op-consensus/src/transaction/typed.rs @@ -1,5 +1,5 @@ -use crate::{OpTxEnvelope, OpTxType, TxDeposit, TxEip1559, TxEip2930, TxEip4844Variant, TxLegacy}; -use alloy_consensus::Transaction; +use crate::{OpTxEnvelope, OpTxType, TxDeposit}; +use alloy_consensus::{Transaction, TxEip1559, TxEip2930, TxEip4844Variant, TxLegacy}; use alloy_primitives::TxKind; /// The TypedTransaction enum represents all Ethereum transaction request types, modified for the OP diff --git a/crates/op-consensus/testdata/rpc_blob_transaction.rlp b/crates/op-consensus/testdata/rpc_blob_transaction.rlp deleted file mode 100644 index 36232f1c..00000000 --- a/crates/op-consensus/testdata/rpc_blob_transaction.rlp +++ /dev/null @@ -1 +0,0 @@ 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