forked from forks/go-ethereum
48ec86abbb
I added the history mode configuration in eth/ethconfig initially, since it seemed like the logical place. But it turns out we need access to the intended pruning setting at a deeper level, and it actually needs to be integrated with the blockchain startup procedure. With this change applied, if a node previously had its history pruned, and is subsequently restarted **without** the `--history.chain postmerge` flag, the `BlockChain` initialization code will now verify the freezer tail against the known pruning point of the predefined network and will restore pruning status. Note that this logic is quite restrictive, we allow non-zero tail only for known networks, and only for the specific pruning point that is defined.
273 lines
9.1 KiB
Go
273 lines
9.1 KiB
Go
// Copyright 2015 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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"math/big"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus"
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"github.com/ethereum/go-ethereum/consensus/beacon"
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"github.com/ethereum/go-ethereum/consensus/clique"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/core/rawdb"
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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/crypto"
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"github.com/ethereum/go-ethereum/params"
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)
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// Tests that simple header verification works, for both good and bad blocks.
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func TestHeaderVerification(t *testing.T) {
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testHeaderVerification(t, rawdb.HashScheme)
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testHeaderVerification(t, rawdb.PathScheme)
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}
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func testHeaderVerification(t *testing.T, scheme string) {
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// Create a simple chain to verify
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var (
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gspec = &Genesis{Config: params.TestChainConfig}
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_, blocks, _ = GenerateChainWithGenesis(gspec, ethash.NewFaker(), 8, nil)
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)
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headers := make([]*types.Header, len(blocks))
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for i, block := range blocks {
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headers[i] = block.Header()
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}
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// Run the header checker for blocks one-by-one, checking for both valid and invalid nonces
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chain, err := NewBlockChain(rawdb.NewMemoryDatabase(), DefaultCacheConfigWithScheme(scheme), gspec, nil, ethash.NewFaker(), vm.Config{}, nil)
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defer chain.Stop()
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if err != nil {
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t.Fatal(err)
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}
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for i := 0; i < len(blocks); i++ {
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for j, valid := range []bool{true, false} {
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var results <-chan error
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if valid {
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engine := ethash.NewFaker()
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_, results = engine.VerifyHeaders(chain, []*types.Header{headers[i]})
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} else {
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engine := ethash.NewFakeFailer(headers[i].Number.Uint64())
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_, results = engine.VerifyHeaders(chain, []*types.Header{headers[i]})
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}
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// Wait for the verification result
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select {
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case result := <-results:
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if (result == nil) != valid {
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t.Errorf("test %d.%d: validity mismatch: have %v, want %v", i, j, result, valid)
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}
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case <-time.After(time.Second):
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t.Fatalf("test %d.%d: verification timeout", i, j)
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}
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// Make sure no more data is returned
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select {
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case result := <-results:
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t.Fatalf("test %d.%d: unexpected result returned: %v", i, j, result)
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case <-time.After(25 * time.Millisecond):
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}
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}
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chain.InsertChain(blocks[i : i+1])
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}
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}
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func TestHeaderVerificationForMergingClique(t *testing.T) { testHeaderVerificationForMerging(t, true) }
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func TestHeaderVerificationForMergingEthash(t *testing.T) { testHeaderVerificationForMerging(t, false) }
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// Tests the verification for eth1/2 merging, including pre-merge and post-merge
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func testHeaderVerificationForMerging(t *testing.T, isClique bool) {
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var (
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gspec *Genesis
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preBlocks []*types.Block
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postBlocks []*types.Block
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engine consensus.Engine
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)
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if isClique {
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var (
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key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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addr = crypto.PubkeyToAddress(key.PublicKey)
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config = *params.AllCliqueProtocolChanges
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)
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engine = beacon.New(clique.New(params.AllCliqueProtocolChanges.Clique, rawdb.NewMemoryDatabase()))
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gspec = &Genesis{
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Config: &config,
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ExtraData: make([]byte, 32+common.AddressLength+crypto.SignatureLength),
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Alloc: map[common.Address]types.Account{
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addr: {Balance: big.NewInt(1)},
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},
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BaseFee: big.NewInt(params.InitialBaseFee),
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Difficulty: new(big.Int),
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}
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copy(gspec.ExtraData[32:], addr[:])
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// chain_maker has no blockchain to retrieve the TTD from, setting to nil
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// is a hack to signal it to generate pre-merge blocks
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gspec.Config.TerminalTotalDifficulty = nil
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td := 0
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genDb, blocks, _ := GenerateChainWithGenesis(gspec, engine, 8, nil)
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for i, block := range blocks {
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header := block.Header()
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if i > 0 {
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header.ParentHash = blocks[i-1].Hash()
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}
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header.Extra = make([]byte, 32+crypto.SignatureLength)
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header.Difficulty = big.NewInt(2)
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sig, _ := crypto.Sign(engine.SealHash(header).Bytes(), key)
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copy(header.Extra[len(header.Extra)-crypto.SignatureLength:], sig)
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blocks[i] = block.WithSeal(header)
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// calculate td
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td += int(block.Difficulty().Uint64())
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}
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preBlocks = blocks
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gspec.Config.TerminalTotalDifficulty = big.NewInt(int64(td))
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postBlocks, _ = GenerateChain(gspec.Config, preBlocks[len(preBlocks)-1], engine, genDb, 8, nil)
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} else {
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config := *params.TestChainConfig
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gspec = &Genesis{Config: &config}
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engine = beacon.New(ethash.NewFaker())
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td := int(params.GenesisDifficulty.Uint64())
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genDb, blocks, _ := GenerateChainWithGenesis(gspec, engine, 8, nil)
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for _, block := range blocks {
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// calculate td
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td += int(block.Difficulty().Uint64())
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}
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preBlocks = blocks
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gspec.Config.TerminalTotalDifficulty = big.NewInt(int64(td))
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postBlocks, _ = GenerateChain(gspec.Config, preBlocks[len(preBlocks)-1], engine, genDb, 8, func(i int, gen *BlockGen) {
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gen.SetPoS()
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})
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}
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// Assemble header batch
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preHeaders := make([]*types.Header, len(preBlocks))
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for i, block := range preBlocks {
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preHeaders[i] = block.Header()
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}
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postHeaders := make([]*types.Header, len(postBlocks))
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for i, block := range postBlocks {
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postHeaders[i] = block.Header()
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}
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// Run the header checker for blocks one-by-one, checking for both valid and invalid nonces
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chain, err := NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, engine, vm.Config{}, nil)
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defer chain.Stop()
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if err != nil {
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t.Fatal(err)
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}
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// Verify the blocks before the merging
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for i := 0; i < len(preBlocks); i++ {
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_, results := engine.VerifyHeaders(chain, []*types.Header{preHeaders[i]})
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// Wait for the verification result
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select {
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case result := <-results:
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if result != nil {
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t.Errorf("pre-block %d: verification failed %v", i, result)
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}
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case <-time.After(time.Second):
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t.Fatalf("pre-block %d: verification timeout", i)
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}
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// Make sure no more data is returned
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select {
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case result := <-results:
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t.Fatalf("pre-block %d: unexpected result returned: %v", i, result)
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case <-time.After(25 * time.Millisecond):
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}
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chain.InsertChain(preBlocks[i : i+1])
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}
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// Verify the blocks after the merging
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for i := 0; i < len(postBlocks); i++ {
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_, results := engine.VerifyHeaders(chain, []*types.Header{postHeaders[i]})
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// Wait for the verification result
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select {
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case result := <-results:
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if result != nil {
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t.Errorf("post-block %d: verification failed %v", i, result)
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}
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case <-time.After(time.Second):
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t.Fatalf("test %d: verification timeout", i)
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}
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// Make sure no more data is returned
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select {
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case result := <-results:
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t.Fatalf("post-block %d: unexpected result returned: %v", i, result)
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case <-time.After(25 * time.Millisecond):
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}
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chain.InsertBlockWithoutSetHead(postBlocks[i], false)
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}
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// Verify the blocks with pre-merge blocks and post-merge blocks
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var headers []*types.Header
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for _, block := range preBlocks {
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headers = append(headers, block.Header())
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}
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for _, block := range postBlocks {
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headers = append(headers, block.Header())
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}
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_, results := engine.VerifyHeaders(chain, headers)
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for i := 0; i < len(headers); i++ {
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select {
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case result := <-results:
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if result != nil {
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t.Errorf("test %d: verification failed %v", i, result)
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}
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case <-time.After(time.Second):
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t.Fatalf("test %d: verification timeout", i)
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}
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}
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// Make sure no more data is returned
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select {
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case result := <-results:
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t.Fatalf("unexpected result returned: %v", result)
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case <-time.After(25 * time.Millisecond):
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}
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}
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func TestCalcGasLimit(t *testing.T) {
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for i, tc := range []struct {
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pGasLimit uint64
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max uint64
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min uint64
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}{
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{20000000, 20019530, 19980470},
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{40000000, 40039061, 39960939},
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} {
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// Increase
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if have, want := CalcGasLimit(tc.pGasLimit, 2*tc.pGasLimit), tc.max; have != want {
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t.Errorf("test %d: have %d want <%d", i, have, want)
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}
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// Decrease
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if have, want := CalcGasLimit(tc.pGasLimit, 0), tc.min; have != want {
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t.Errorf("test %d: have %d want >%d", i, have, want)
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}
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// Small decrease
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if have, want := CalcGasLimit(tc.pGasLimit, tc.pGasLimit-1), tc.pGasLimit-1; have != want {
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t.Errorf("test %d: have %d want %d", i, have, want)
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}
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// Small increase
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if have, want := CalcGasLimit(tc.pGasLimit, tc.pGasLimit+1), tc.pGasLimit+1; have != want {
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t.Errorf("test %d: have %d want %d", i, have, want)
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}
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// No change
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if have, want := CalcGasLimit(tc.pGasLimit, tc.pGasLimit), tc.pGasLimit; have != want {
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t.Errorf("test %d: have %d want %d", i, have, want)
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}
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}
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}
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