138 lines
4.1 KiB
Nim
138 lines
4.1 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2023 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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# Mocking deposits and genesis deposits
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# ---------------------------------------------------------------
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import
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# Standard library
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math,
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# Specs
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../../beacon_chain/spec/[eth2_merkleization, keystore, forks, signatures],
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../../beacon_chain/spec/datatypes/base,
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# Internals
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../../beacon_chain/extras,
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../../beacon_chain/eth1/merkle_minimal,
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# Test utilities
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../testblockutil
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func mockDepositData(
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pubkey: ValidatorPubKey,
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amount: uint64,
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): DepositData =
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# Insecurely use pubkey as withdrawal key
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DepositData(
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pubkey: pubkey,
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withdrawal_credentials: makeWithdrawalCredentials(pubkey),
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amount: amount,
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)
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func mockDepositData(
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pubkey: ValidatorPubKey,
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privkey: ValidatorPrivKey,
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amount: uint64,
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# withdrawal_credentials: Eth2Digest,
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flags: UpdateFlags = {}
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): DepositData =
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var ret = mockDepositData(pubkey, amount)
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if skipBlsValidation notin flags:
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ret.signature = defaultRuntimeConfig.get_deposit_signature(ret, privkey).toValidatorSig()
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ret
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template mockGenesisDepositsImpl(
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result: seq[DepositData],
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validatorCount: uint64,
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amount: untyped,
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flags: UpdateFlags = {},
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updateAmount: untyped,
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) =
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# Genesis deposits with varying amounts
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# NOTE: prefer to er on the side of caution and generate a valid Deposit
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# (it can still be skipped later).
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if skipBlsValidation in flags:
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# 1st loop - build deposit data
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for valIdx in 0 ..< validatorCount:
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# Directly build the Deposit in-place for speed
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result.setLen(valIdx + 1)
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updateAmount
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# DepositData
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result[valIdx] =
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mockDepositData(MockPubKeys[valIdx.ValidatorIndex], amount)
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else: # With signing
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var depositsDataHash: seq[Eth2Digest]
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var depositsData: seq[DepositData]
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# 1st loop - build deposit data
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for valIdx in 0 ..< validatorCount:
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# Directly build the Deposit in-place for speed
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result.setLen(valIdx + 1)
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updateAmount
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# DepositData
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result[valIdx] =
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mockDepositData(
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MockPubKeys[valIdx.ValidatorIndex],
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MockPrivKeys[valIdx.ValidatorIndex],
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amount, flags)
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depositsData.add result[valIdx]
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depositsDataHash.add hash_tree_root(result[valIdx])
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proc mockGenesisBalancedDeposits*(
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validatorCount: uint64,
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amountInEth: Positive,
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flags: UpdateFlags = {}
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): seq[DepositData] =
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## The amount should be strictly positive
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## - 1 is the minimum deposit amount (MIN_DEPOSIT_AMOUNT)
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## - 16 is the ejection balance (EJECTION_BALANCE)
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## - 32 is the max effective balance (MAX_EFFECTIVE_BALANCE)
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## ETH beyond do not contribute more for staking.
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##
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## Only validators with 32 ETH will be active at genesis
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let amount = amountInEth.uint64 * 10'u64^9
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mockGenesisDepositsImpl(result, validatorCount,amount,flags):
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discard
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proc mockUpdateStateForNewDeposit*(
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state: var ForkyBeaconState,
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validator_index: uint64,
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amount: uint64,
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# withdrawal_credentials: Eth2Digest
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flags: UpdateFlags
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): Deposit =
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# TODO withdrawal credentials
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result.data = mockDepositData(
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MockPubKeys[validator_index.ValidatorIndex],
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MockPrivKeys[validator_index.ValidatorIndex],
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amount,
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# withdrawal_credentials: Eth2Digest
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flags
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)
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var result_seq = @[result]
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attachMerkleProofs(result_seq)
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result.proof = result_seq[0].proof
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# TODO: this logic from the consensus-specs test suite seems strange
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# but confirmed by running it
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state.eth1_deposit_index = 0
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state.eth1_data.deposit_root =
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hash_tree_root(List[DepositData, 2'i64^DEPOSIT_CONTRACT_TREE_DEPTH](@[result.data]))
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state.eth1_data.deposit_count = 1
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