77 lines
2.6 KiB
Nim
77 lines
2.6 KiB
Nim
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# fluffy
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# Copyright (c) 2021-2024 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.push raises: [].}
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import std/math, nimcrypto/hash, ssz_serialization
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from beacon_chain/spec/datatypes/capella import Withdrawal
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from beacon_chain/spec/presets/mainnet import MAX_WITHDRAWALS_PER_PAYLOAD
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export ssz_serialization, hash
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## History network content values:
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## https://github.com/ethereum/portal-network-specs/blob/master/history-network.md#content-keys-and-values
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const
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MAX_TRANSACTION_LENGTH = 2 ^ 24 # ~= 16 million
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MAX_TRANSACTION_COUNT = 2 ^ 14 # ~= 16k
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MAX_RECEIPT_LENGTH = 2 ^ 27 # ~= 134 million
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MAX_HEADER_LENGTH = 2 ^ 13 # = 8192
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MAX_ENCODED_UNCLES_LENGTH = MAX_HEADER_LENGTH * 2 ^ 4 # = 2 ^ 17 ~= 131k
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MAX_WITHDRAWAL_LENGTH = 64
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MAX_WITHDRAWALS_COUNT = MAX_WITHDRAWALS_PER_PAYLOAD
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type
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## BlockHeader types
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AccumulatorProof* = array[15, Digest]
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BlockHeaderProofType* = enum
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none = 0x00 # An SSZ Union None
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accumulatorProof = 0x01
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BlockHeaderProof* = object
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case proofType*: BlockHeaderProofType
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of none:
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discard
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of accumulatorProof:
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accumulatorProof*: AccumulatorProof
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BlockHeaderWithProof* = object
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header*: List[byte, 2048] # RLP data
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proof*: BlockHeaderProof
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## BlockBody types
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TransactionByteList* = List[byte, MAX_TRANSACTION_LENGTH] # RLP data
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Transactions* = List[TransactionByteList, MAX_TRANSACTION_COUNT]
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Uncles* = List[byte, MAX_ENCODED_UNCLES_LENGTH] # RLP data
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WithdrawalByteList* = List[byte, MAX_WITHDRAWAL_LENGTH] # RLP data
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Withdrawals* = List[WithdrawalByteList, MAX_WITHDRAWALS_COUNT]
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# Pre-shanghai block body
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PortalBlockBodyLegacy* = object
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transactions*: Transactions
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uncles*: Uncles # Post Paris/TheMerge, this list is required to be empty
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# Post-shanghai block body
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PortalBlockBodyShanghai* = object
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transactions*: Transactions
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uncles*: Uncles # Must be empty list
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withdrawals*: Withdrawals # new field
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## Receipts types
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ReceiptByteList* = List[byte, MAX_RECEIPT_LENGTH] # RLP data
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PortalReceipts* = List[ReceiptByteList, MAX_TRANSACTION_COUNT]
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func init*(T: type BlockHeaderProof, proof: AccumulatorProof): T =
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BlockHeaderProof(proofType: accumulatorProof, accumulatorProof: proof)
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func init*(T: type BlockHeaderProof): T =
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BlockHeaderProof(proofType: none)
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