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80 lines
3 KiB
Go
80 lines
3 KiB
Go
// Copyright 2024 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package core
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import (
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"context"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/lru"
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"github.com/ethereum/go-ethereum/consensus/beacon"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/stateless"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/triedb"
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)
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// ExecuteStateless runs a stateless execution based on a witness, fully
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// validating the block including header, body, state root and receipt root.
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//
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// This method is a bit of a sore thumb here, but:
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// - It cannot be placed in core/stateless, because state.New prodces a circular dep
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// - It cannot be placed outside of core, because it needs to construct a dud headerchain
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//
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// TODO(karalabe): Would be nice to resolve both issues above somehow and move it.
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func ExecuteStateless(ctx context.Context, config *params.ChainConfig, vmconfig vm.Config, block *types.Block, witness *stateless.Witness) error {
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// Create and populate the state database to serve as the stateless backend
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memdb := witness.MakeHashDB()
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db, err := state.New(witness.Root(), state.NewDatabase(triedb.NewDatabase(memdb, triedb.HashDefaults), nil))
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if err != nil {
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return err
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}
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// Create a blockchain that is idle, but can be used to access headers through
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engine := beacon.New(ethash.NewFaker())
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chain := &HeaderChain{
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config: config,
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chainDb: memdb,
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headerCache: lru.NewCache[common.Hash, *types.Header](256),
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engine: engine,
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}
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processor := NewStateProcessor(chain)
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validator := NewBlockValidator(config)
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// Pre-execution: Verify the block header against the parent header
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if err := engine.VerifyHeader(chain, block.Header()); err != nil {
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return err
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}
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// Pre-execution: Verify the block body against the header
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if err := validator.ValidateBody(block); err != nil {
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return err
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}
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// Process the block by executing all transactions
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res, err := processor.Process(ctx, block, db, vmconfig)
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if err != nil {
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return err
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}
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// Post-execution: Validate gas, bloom, receipts, state root and
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// other post execution artifacts
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return validator.ValidateState(block, db, res)
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}
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