143 lines
4.3 KiB
Nim
143 lines
4.3 KiB
Nim
# Nimbus
|
|
# Copyright (c) 2018-2024 Status Research & Development GmbH
|
|
# Licensed under either of
|
|
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
|
|
# http://www.apache.org/licenses/LICENSE-2.0)
|
|
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
|
|
# http://opensource.org/licenses/MIT)
|
|
# at your option. This file may not be copied, modified, or distributed except
|
|
# according to those terms.
|
|
|
|
{.push raises: [].}
|
|
|
|
import
|
|
std/[math, times, strutils],
|
|
eth/[rlp, common/eth_types_rlp],
|
|
stew/byteutils,
|
|
nimcrypto,
|
|
results,
|
|
../db/aristo,
|
|
../constants
|
|
|
|
export eth_types_rlp
|
|
|
|
proc calcRootHash[T](items: openArray[T]): Hash256 {.gcsafe.} =
|
|
let sig = merkleSignBegin()
|
|
for i, t in items:
|
|
sig.merkleSignAdd(rlp.encode(i.uint), rlp.encode(t))
|
|
sig.merkleSignCommit.value
|
|
|
|
template calcTxRoot*(transactions: openArray[Transaction]): Hash256 =
|
|
calcRootHash(transactions)
|
|
|
|
template calcWithdrawalsRoot*(withdrawals: openArray[Withdrawal]): Hash256 =
|
|
calcRootHash(withdrawals)
|
|
|
|
template calcReceiptsRoot*(receipts: openArray[Receipt]): Hash256 =
|
|
calcRootHash(receipts)
|
|
|
|
func sumHash*(hashes: varargs[Hash256]): Hash256 =
|
|
var ctx: sha256
|
|
ctx.init()
|
|
for hash in hashes:
|
|
ctx.update hash.data
|
|
ctx.finish result.data
|
|
ctx.clear()
|
|
|
|
proc sumHash*(body: BlockBody): Hash256 {.gcsafe, raises: [].} =
|
|
let txRoot = calcTxRoot(body.transactions)
|
|
let ommersHash = keccakHash(rlp.encode(body.uncles))
|
|
let wdRoot =
|
|
if body.withdrawals.isSome:
|
|
calcWithdrawalsRoot(body.withdrawals.get)
|
|
else:
|
|
EMPTY_ROOT_HASH
|
|
sumHash(txRoot, ommersHash, wdRoot)
|
|
|
|
proc sumHash*(header: BlockHeader): Hash256 =
|
|
let wdRoot =
|
|
if header.withdrawalsRoot.isSome: header.withdrawalsRoot.get else: EMPTY_ROOT_HASH
|
|
sumHash(header.txRoot, header.ommersHash, wdRoot)
|
|
|
|
func hasBody*(h: BlockHeader): bool =
|
|
h.txRoot != EMPTY_ROOT_HASH or h.ommersHash != EMPTY_UNCLE_HASH or
|
|
h.withdrawalsRoot.get(EMPTY_ROOT_HASH) != EMPTY_ROOT_HASH
|
|
|
|
func generateAddress*(address: EthAddress, nonce: AccountNonce): EthAddress =
|
|
result[0 .. 19] = keccakHash(rlp.encodeList(address, nonce)).data.toOpenArray(12, 31)
|
|
|
|
type ContractSalt* = object
|
|
bytes*: array[32, byte]
|
|
|
|
const ZERO_CONTRACTSALT* = default(ContractSalt)
|
|
|
|
func generateSafeAddress*(
|
|
address: EthAddress, salt: ContractSalt, data: openArray[byte]
|
|
): EthAddress =
|
|
const prefix = [0xff.byte]
|
|
let
|
|
dataHash = keccakHash(data)
|
|
hashResult = withKeccakHash:
|
|
h.update(prefix)
|
|
h.update(address)
|
|
h.update(salt.bytes)
|
|
h.update(dataHash.data)
|
|
|
|
result[0 .. 19] = hashResult.data.toOpenArray(12, 31)
|
|
|
|
proc crc32*(crc: uint32, buf: openArray[byte]): uint32 =
|
|
const kcrc32 = [
|
|
0'u32, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 0x76dc4190, 0x6b6b51f4, 0x4db26158,
|
|
0x5005713c, 0xedb88320'u32, 0xf00f9344'u32, 0xd6d6a3e8'u32, 0xcb61b38c'u32,
|
|
0x9b64c2b0'u32, 0x86d3d2d4'u32, 0xa00ae278'u32, 0xbdbdf21c'u32,
|
|
]
|
|
|
|
var crcu32 = not crc
|
|
for b in buf:
|
|
crcu32 =
|
|
(crcu32 shr 4) xor kcrc32[int((crcu32 and 0xF) xor (uint32(b) and 0xF'u32))]
|
|
crcu32 = (crcu32 shr 4) xor kcrc32[int((crcu32 and 0xF) xor (uint32(b) shr 4'u32))]
|
|
|
|
result = not crcu32
|
|
|
|
proc short*(h: Hash256): string =
|
|
var bytes: array[6, byte]
|
|
bytes[0 .. 2] = h.data[0 .. 2]
|
|
bytes[^3 ..^ 1] = h.data[^3 ..^ 1]
|
|
bytes.toHex
|
|
|
|
func short*(x: Duration): string =
|
|
let parts = x.toParts
|
|
if parts[Hours] > 0:
|
|
result.add $parts[Hours]
|
|
result.add ':'
|
|
|
|
result.add intToStr(parts[Minutes].int, 2)
|
|
result.add ':'
|
|
result.add intToStr(parts[Seconds].int, 2)
|
|
|
|
proc decompose*(
|
|
rlp: var Rlp, header: var BlockHeader, body: var BlockBody
|
|
) {.gcsafe, raises: [RlpError].} =
|
|
var blk = rlp.read(EthBlock)
|
|
header = system.move(blk.header)
|
|
body.transactions = system.move(blk.txs)
|
|
body.uncles = system.move(blk.uncles)
|
|
body.withdrawals = system.move(blk.withdrawals)
|
|
|
|
proc decompose*(
|
|
rlpBytes: openArray[byte], header: var BlockHeader, body: var BlockBody
|
|
) {.gcsafe, raises: [RlpError].} =
|
|
var rlp = rlpFromBytes(rlpBytes)
|
|
rlp.decompose(header, body)
|
|
|
|
func gwei*(n: uint64): GasInt =
|
|
GasInt(n * (10'u64 ^ 9'u64))
|
|
|
|
# Helper types to convert gwei into wei more easily
|
|
func weiAmount*(w: Withdrawal): UInt256 =
|
|
w.amount.u256 * (10'u64 ^ 9'u64).u256
|
|
|
|
func isGenesis*(header: BlockHeader): bool =
|
|
header.number == 0'u64 and header.parentHash == GENESIS_PARENT_HASH
|