diff --git a/cmd/geth/config_test.go b/cmd/geth/config_test.go index ccbf264b2..9aa1f8ee4 100644 --- a/cmd/geth/config_test.go +++ b/cmd/geth/config_test.go @@ -64,14 +64,6 @@ func TestFlagsConfig(t *testing.T) { utils.UltraLightOnlyAnnounceFlag, utils.LightNoPruneFlag, utils.LightNoSyncServeFlag, - utils.EthashCacheDirFlag, - utils.EthashCachesInMemoryFlag, - utils.EthashCachesOnDiskFlag, - utils.EthashCachesLockMmapFlag, - utils.EthashDatasetDirFlag, - utils.EthashDatasetsInMemoryFlag, - utils.EthashDatasetsOnDiskFlag, - utils.EthashDatasetsLockMmapFlag, utils.TxPoolLocalsFlag, utils.TxPoolNoLocalsFlag, utils.TxPoolJournalFlag, @@ -93,15 +85,12 @@ func TestFlagsConfig(t *testing.T) { utils.CacheNoPrefetchFlag, utils.CachePreimagesFlag, utils.MiningEnabledFlag, - utils.MinerThreadsFlag, - utils.MinerNotifyFlag, utils.MinerGasTargetFlag, utils.MinerGasLimitFlag, utils.MinerGasPriceFlag, utils.MinerEtherbaseFlag, utils.MinerExtraDataFlag, utils.MinerRecommitIntervalFlag, - utils.MinerNoVerfiyFlag, utils.UnlockedAccountFlag, utils.PasswordFileFlag, utils.ExternalSignerFlag, @@ -323,7 +312,6 @@ func TestFlagsConfig(t *testing.T) { assert.Equal(t, uint64(800000000), miner.GasCeil) assert.Equal(t, big.NewInt(1000000000), miner.GasPrice) assert.Equal(t, time.Duration(3000000000), miner.Recommit) - assert.Equal(t, false, miner.Noverify) assert.Equal(t, time.Duration(200000000), miner.NewPayloadTimeout) assert.Equal(t, uint64(0), miner.AllowedFutureBlockTime) @@ -487,7 +475,6 @@ GasFloor = 700000000 GasCeil = 800000000 GasPrice = 0 Recommit = 3000000000 -Noverify = false NewPayloadTimeout = 200000000 AllowedFutureBlockTime = 0 @@ -619,7 +606,6 @@ func testConfig(t *testing.T, cfg *gethConfig) { assert.Equal(t, uint64(800000000), miner.GasCeil) assert.Equal(t, big.NewInt(0), miner.GasPrice) assert.Equal(t, time.Duration(3000000000), miner.Recommit) - assert.Equal(t, false, miner.Noverify) assert.Equal(t, uint64(0), miner.AllowedFutureBlockTime) // [Eth.GPO] diff --git a/cmd/geth/main.go b/cmd/geth/main.go index 572b25303..c69aa54db 100644 --- a/cmd/geth/main.go +++ b/cmd/geth/main.go @@ -70,14 +70,6 @@ var ( utils.USBFlag, utils.SmartCardDaemonPathFlag, utils.OverrideBerlinFlag, - utils.EthashCacheDirFlag, - utils.EthashCachesInMemoryFlag, - utils.EthashCachesOnDiskFlag, - utils.EthashCachesLockMmapFlag, - utils.EthashDatasetDirFlag, - utils.EthashDatasetsInMemoryFlag, - utils.EthashDatasetsOnDiskFlag, - utils.EthashDatasetsLockMmapFlag, utils.TxPoolLocalsFlag, utils.TxPoolNoLocalsFlag, utils.TxPoolJournalFlag, @@ -119,15 +111,12 @@ var ( utils.MaxPeersFlag, utils.MaxPendingPeersFlag, utils.MiningEnabledFlag, - utils.MinerThreadsFlag, - utils.MinerNotifyFlag, utils.MinerGasTargetFlag, utils.MinerGasLimitFlag, utils.MinerGasPriceFlag, utils.MinerEtherbaseFlag, utils.MinerExtraDataFlag, utils.MinerRecommitIntervalFlag, - utils.MinerNoVerfiyFlag, utils.MinerNewPayloadTimeout, utils.NATFlag, utils.NoDiscoverFlag, @@ -146,14 +135,12 @@ var ( utils.VMEnableDebugFlag, utils.NetworkIdFlag, utils.EthStatsURLFlag, - utils.FakePoWFlag, utils.NoCompactionFlag, utils.GpoBlocksFlag, utils.GpoPercentileFlag, utils.GpoMaxGasPriceFlag, utils.EWASMInterpreterFlag, utils.EVMInterpreterFlag, - utils.MinerNotifyFullFlag, configFileFlag, utils.CatalystFlag, // Quorum @@ -287,8 +274,6 @@ func init() { attachCommand, javascriptCommand, // See misccmd.go: - makecacheCommand, - makedagCommand, versionCommand, versionCheckCommand, licenseCommand, @@ -517,9 +502,7 @@ func startNode(ctx *cli.Context, stack *node.Node, backend ethapi.Backend) { // Set the gas price to the limits from the CLI and start mining gasprice := utils.GlobalBig(ctx, utils.MinerGasPriceFlag.Name) ethBackend.TxPool().SetGasPrice(gasprice) - // start mining - threads := ctx.GlobalInt(utils.MinerThreadsFlag.Name) - if err := ethBackend.StartMining(threads); err != nil { + if err := ethBackend.StartMining(); err != nil { utils.Fatalf("Failed to start mining: %v", err) } } diff --git a/cmd/geth/misccmd.go b/cmd/geth/misccmd.go index bc276dac2..1b11260c6 100644 --- a/cmd/geth/misccmd.go +++ b/cmd/geth/misccmd.go @@ -20,11 +20,9 @@ import ( "fmt" "os" "runtime" - "strconv" "strings" "github.com/ethereum/go-ethereum/cmd/utils" - "github.com/ethereum/go-ethereum/consensus/ethash" "github.com/ethereum/go-ethereum/eth/ethconfig" "github.com/ethereum/go-ethereum/params" "gopkg.in/urfave/cli.v1" @@ -43,32 +41,6 @@ var ( params.VersionWithCommit(gitCommit, gitDate), runtime.GOOS, runtime.GOARCH, runtime.Version()), } - makecacheCommand = cli.Command{ - Action: utils.MigrateFlags(makecache), - Name: "makecache", - Usage: "Generate ethash verification cache (for testing)", - ArgsUsage: " ", - Category: "MISCELLANEOUS COMMANDS", - Description: ` -The makecache command generates an ethash cache in . - -This command exists to support the system testing project. -Regular users do not need to execute it. -`, - } - makedagCommand = cli.Command{ - Action: utils.MigrateFlags(makedag), - Name: "makedag", - Usage: "Generate ethash mining DAG (for testing)", - ArgsUsage: " ", - Category: "MISCELLANEOUS COMMANDS", - Description: ` -The makedag command generates an ethash DAG in . - -This command exists to support the system testing project. -Regular users do not need to execute it. -`, - } versionCommand = cli.Command{ Action: utils.MigrateFlags(version), Name: "version", @@ -103,36 +75,6 @@ and displays information about any security vulnerabilities that affect the curr } ) -// makecache generates an ethash verification cache into the provided folder. -func makecache(ctx *cli.Context) error { - args := ctx.Args() - if len(args) != 2 { - utils.Fatalf(`Usage: geth makecache `) - } - block, err := strconv.ParseUint(args[0], 0, 64) - if err != nil { - utils.Fatalf("Invalid block number: %v", err) - } - ethash.MakeCache(block, args[1]) - - return nil -} - -// makedag generates an ethash mining DAG into the provided folder. -func makedag(ctx *cli.Context) error { - args := ctx.Args() - if len(args) != 2 { - utils.Fatalf(`Usage: geth makedag `) - } - block, err := strconv.ParseUint(args[0], 0, 64) - if err != nil { - utils.Fatalf("Invalid block number: %v", err) - } - ethash.MakeDataset(block, args[1]) - - return nil -} - func version(ctx *cli.Context) error { fmt.Println(strings.Title(clientIdentifier)) fmt.Println("Version:", params.VersionWithMeta) diff --git a/cmd/geth/usage.go b/cmd/geth/usage.go index 1b90c8ade..64a674d8a 100644 --- a/cmd/geth/usage.go +++ b/cmd/geth/usage.go @@ -82,19 +82,6 @@ var AppHelpFlagGroups = []flags.FlagGroup{ utils.DeveloperPeriodFlag, }, }, - { - Name: "ETHASH", - Flags: []cli.Flag{ - utils.EthashCacheDirFlag, - utils.EthashCachesInMemoryFlag, - utils.EthashCachesOnDiskFlag, - utils.EthashCachesLockMmapFlag, - utils.EthashDatasetDirFlag, - utils.EthashDatasetsInMemoryFlag, - utils.EthashDatasetsOnDiskFlag, - utils.EthashDatasetsLockMmapFlag, - }, - }, { Name: "TRANSACTION POOL", Flags: []cli.Flag{ @@ -188,17 +175,12 @@ var AppHelpFlagGroups = []flags.FlagGroup{ { Name: "MINER", Flags: []cli.Flag{ - utils.MiningEnabledFlag, - utils.MinerThreadsFlag, - utils.MinerNotifyFlag, - utils.MinerNotifyFullFlag, utils.MinerGasPriceFlag, utils.MinerGasTargetFlag, utils.MinerGasLimitFlag, utils.MinerEtherbaseFlag, utils.MinerExtraDataFlag, utils.MinerRecommitIntervalFlag, - utils.MinerNoVerfiyFlag, }, }, { diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go index fc827232c..e033874ad 100644 --- a/cmd/utils/flags.go +++ b/cmd/utils/flags.go @@ -300,44 +300,6 @@ var ( Name: "light.nosyncserve", Usage: "Enables serving light clients before syncing", } - // Ethash settings - EthashCacheDirFlag = DirectoryFlag{ - Name: "ethash.cachedir", - Usage: "Directory to store the ethash verification caches (default = inside the datadir)", - } - EthashCachesInMemoryFlag = cli.IntFlag{ - Name: "ethash.cachesinmem", - Usage: "Number of recent ethash caches to keep in memory (16MB each)", - Value: ethconfig.Defaults.Ethash.CachesInMem, - } - EthashCachesOnDiskFlag = cli.IntFlag{ - Name: "ethash.cachesondisk", - Usage: "Number of recent ethash caches to keep on disk (16MB each)", - Value: ethconfig.Defaults.Ethash.CachesOnDisk, - } - EthashCachesLockMmapFlag = cli.BoolFlag{ - Name: "ethash.cacheslockmmap", - Usage: "Lock memory maps of recent ethash caches", - } - EthashDatasetDirFlag = DirectoryFlag{ - Name: "ethash.dagdir", - Usage: "Directory to store the ethash mining DAGs", - Value: DirectoryString(ethconfig.Defaults.Ethash.DatasetDir), - } - EthashDatasetsInMemoryFlag = cli.IntFlag{ - Name: "ethash.dagsinmem", - Usage: "Number of recent ethash mining DAGs to keep in memory (1+GB each)", - Value: ethconfig.Defaults.Ethash.DatasetsInMem, - } - EthashDatasetsOnDiskFlag = cli.IntFlag{ - Name: "ethash.dagsondisk", - Usage: "Number of recent ethash mining DAGs to keep on disk (1+GB each)", - Value: ethconfig.Defaults.Ethash.DatasetsOnDisk, - } - EthashDatasetsLockMmapFlag = cli.BoolFlag{ - Name: "ethash.dagslockmmap", - Usage: "Lock memory maps for recent ethash mining DAGs", - } // Transaction pool settings TxPoolLocalsFlag = cli.StringFlag{ Name: "txpool.locals", @@ -441,19 +403,6 @@ var ( Name: "mine", Usage: "Enable mining", } - MinerThreadsFlag = cli.IntFlag{ - Name: "miner.threads", - Usage: "Number of CPU threads to use for mining", - Value: 0, - } - MinerNotifyFlag = cli.StringFlag{ - Name: "miner.notify", - Usage: "Comma separated HTTP URL list to notify of new work packages", - } - MinerNotifyFullFlag = cli.BoolFlag{ - Name: "miner.notify.full", - Usage: "Notify with pending block headers instead of work packages", - } MinerGasTargetFlag = cli.Uint64Flag{ Name: "miner.gastarget", Usage: "Target gas floor for mined blocks", @@ -483,10 +432,6 @@ var ( Usage: "Time interval to recreate the block being mined", Value: ethconfig.Defaults.Miner.Recommit, } - MinerNoVerfiyFlag = cli.BoolFlag{ - Name: "miner.noverify", - Usage: "Disable remote sealing verification", - } MinerNewPayloadTimeout = &cli.DurationFlag{ Name: "miner.newpayload-timeout", Usage: "Specify the maximum time allowance for creating a new payload", @@ -1748,38 +1693,7 @@ func setTxPool(ctx *cli.Context, cfg *core.TxPoolConfig) { } } -func setEthash(ctx *cli.Context, cfg *ethconfig.Config) { - if ctx.GlobalIsSet(EthashCacheDirFlag.Name) { - cfg.Ethash.CacheDir = ctx.GlobalString(EthashCacheDirFlag.Name) - } - if ctx.GlobalIsSet(EthashDatasetDirFlag.Name) { - cfg.Ethash.DatasetDir = ctx.GlobalString(EthashDatasetDirFlag.Name) - } - if ctx.GlobalIsSet(EthashCachesInMemoryFlag.Name) { - cfg.Ethash.CachesInMem = ctx.GlobalInt(EthashCachesInMemoryFlag.Name) - } - if ctx.GlobalIsSet(EthashCachesOnDiskFlag.Name) { - cfg.Ethash.CachesOnDisk = ctx.GlobalInt(EthashCachesOnDiskFlag.Name) - } - if ctx.GlobalIsSet(EthashCachesLockMmapFlag.Name) { - cfg.Ethash.CachesLockMmap = ctx.GlobalBool(EthashCachesLockMmapFlag.Name) - } - if ctx.GlobalIsSet(EthashDatasetsInMemoryFlag.Name) { - cfg.Ethash.DatasetsInMem = ctx.GlobalInt(EthashDatasetsInMemoryFlag.Name) - } - if ctx.GlobalIsSet(EthashDatasetsOnDiskFlag.Name) { - cfg.Ethash.DatasetsOnDisk = ctx.GlobalInt(EthashDatasetsOnDiskFlag.Name) - } - if ctx.GlobalIsSet(EthashDatasetsLockMmapFlag.Name) { - cfg.Ethash.DatasetsLockMmap = ctx.GlobalBool(EthashDatasetsLockMmapFlag.Name) - } -} - func setMiner(ctx *cli.Context, cfg *miner.Config) { - if ctx.GlobalIsSet(MinerNotifyFlag.Name) { - cfg.Notify = strings.Split(ctx.GlobalString(MinerNotifyFlag.Name), ",") - } - cfg.NotifyFull = ctx.GlobalBool(MinerNotifyFullFlag.Name) if ctx.GlobalIsSet(MinerExtraDataFlag.Name) { cfg.ExtraData = []byte(ctx.GlobalString(MinerExtraDataFlag.Name)) } @@ -1795,9 +1709,6 @@ func setMiner(ctx *cli.Context, cfg *miner.Config) { if ctx.GlobalIsSet(MinerRecommitIntervalFlag.Name) { cfg.Recommit = ctx.GlobalDuration(MinerRecommitIntervalFlag.Name) } - if ctx.GlobalIsSet(MinerNoVerfiyFlag.Name) { - cfg.Noverify = ctx.GlobalBool(MinerNoVerfiyFlag.Name) - } if ctx.GlobalIsSet(MinerNewPayloadTimeout.Name) { cfg.NewPayloadTimeout = ctx.Duration(MinerNewPayloadTimeout.Name) } @@ -2022,7 +1933,6 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) { setEtherbase(ctx, ks, cfg) setGPO(ctx, &cfg.GPO, ctx.GlobalString(SyncModeFlag.Name) == "light") setTxPool(ctx, &cfg.TxPool) - setEthash(ctx, cfg) setMiner(ctx, &cfg.Miner) setAuthorizationList(ctx, cfg) setLes(ctx, cfg) @@ -2557,19 +2467,8 @@ func MakeChain(ctx *cli.Context, stack *node.Node, useExist bool) (chain *core.B engine = ethash.NewFullFaker() } else { engine = ethash.NewFaker() - if !ctx.GlobalBool(FakePoWFlag.Name) { - engine = ethash.New(ethash.Config{ - CacheDir: stack.ResolvePath(ethconfig.Defaults.Ethash.CacheDir), - CachesInMem: ethconfig.Defaults.Ethash.CachesInMem, - CachesOnDisk: ethconfig.Defaults.Ethash.CachesOnDisk, - CachesLockMmap: ethconfig.Defaults.Ethash.CachesLockMmap, - DatasetDir: stack.ResolvePath(ethconfig.Defaults.Ethash.DatasetDir), - DatasetsInMem: ethconfig.Defaults.Ethash.DatasetsInMem, - DatasetsOnDisk: ethconfig.Defaults.Ethash.DatasetsOnDisk, - DatasetsLockMmap: ethconfig.Defaults.Ethash.DatasetsLockMmap, - }, nil, false) - } } + if gcmode := ctx.GlobalString(GCModeFlag.Name); gcmode != "full" && gcmode != "archive" { Fatalf("--%s must be either 'full' or 'archive'", GCModeFlag.Name) } diff --git a/consensus/clique/clique.go b/consensus/clique/clique.go index 1c699f9c6..75bb5729e 100644 --- a/consensus/clique/clique.go +++ b/consensus/clique/clique.go @@ -213,14 +213,14 @@ func (c *Clique) Author(header *types.Header) (common.Address, error) { } // VerifyHeader checks whether a header conforms to the consensus rules. -func (c *Clique) VerifyHeader(chain consensus.ChainHeaderReader, header *types.Header, seal bool) error { +func (c *Clique) VerifyHeader(chain consensus.ChainHeaderReader, header *types.Header) error { return c.verifyHeader(chain, header, nil) } // VerifyHeaders is similar to VerifyHeader, but verifies a batch of headers. The // method returns a quit channel to abort the operations and a results channel to // retrieve the async verifications (the order is that of the input slice). -func (c *Clique) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*types.Header, seals []bool) (chan<- struct{}, <-chan error) { +func (c *Clique) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*types.Header) (chan<- struct{}, <-chan error) { abort := make(chan struct{}) results := make(chan error, len(headers)) diff --git a/consensus/consensus.go b/consensus/consensus.go index 0381a9796..9b087b581 100644 --- a/consensus/consensus.go +++ b/consensus/consensus.go @@ -67,13 +67,13 @@ type Engine interface { // VerifyHeader checks whether a header conforms to the consensus rules of a // given engine. Verifying the seal may be done optionally here, or explicitly // via the VerifySeal method. - VerifyHeader(chain ChainHeaderReader, header *types.Header, seal bool) error + VerifyHeader(chain ChainHeaderReader, header *types.Header) error // VerifyHeaders is similar to VerifyHeader, but verifies a batch of headers // concurrently. The method returns a quit channel to abort the operations and // a results channel to retrieve the async verifications (the order is that of // the input slice). - VerifyHeaders(chain ChainHeaderReader, headers []*types.Header, seals []bool) (chan<- struct{}, <-chan error) + VerifyHeaders(chain ChainHeaderReader, headers []*types.Header) (chan<- struct{}, <-chan error) // VerifyUncles verifies that the given block's uncles conform to the consensus // rules of a given engine. diff --git a/consensus/ethash/algorithm.go b/consensus/ethash/algorithm.go deleted file mode 100644 index 065e60b90..000000000 --- a/consensus/ethash/algorithm.go +++ /dev/null @@ -1,1152 +0,0 @@ -// Copyright 2017 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package ethash - -import ( - "encoding/binary" - "hash" - "math/big" - "reflect" - "runtime" - "sync" - "sync/atomic" - "time" - "unsafe" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/bitutil" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/log" - "golang.org/x/crypto/sha3" -) - -const ( - datasetInitBytes = 1 << 30 // Bytes in dataset at genesis - datasetGrowthBytes = 1 << 23 // Dataset growth per epoch - cacheInitBytes = 1 << 24 // Bytes in cache at genesis - cacheGrowthBytes = 1 << 17 // Cache growth per epoch - epochLength = 30000 // Blocks per epoch - mixBytes = 128 // Width of mix - hashBytes = 64 // Hash length in bytes - hashWords = 16 // Number of 32 bit ints in a hash - datasetParents = 256 // Number of parents of each dataset element - cacheRounds = 3 // Number of rounds in cache production - loopAccesses = 64 // Number of accesses in hashimoto loop -) - -// cacheSize returns the size of the ethash verification cache that belongs to a certain -// block number. -func cacheSize(block uint64) uint64 { - epoch := int(block / epochLength) - if epoch < maxEpoch { - return cacheSizes[epoch] - } - return calcCacheSize(epoch) -} - -// calcCacheSize calculates the cache size for epoch. The cache size grows linearly, -// however, we always take the highest prime below the linearly growing threshold in order -// to reduce the risk of accidental regularities leading to cyclic behavior. -func calcCacheSize(epoch int) uint64 { - size := cacheInitBytes + cacheGrowthBytes*uint64(epoch) - hashBytes - for !new(big.Int).SetUint64(size / hashBytes).ProbablyPrime(1) { // Always accurate for n < 2^64 - size -= 2 * hashBytes - } - return size -} - -// datasetSize returns the size of the ethash mining dataset that belongs to a certain -// block number. -func datasetSize(block uint64) uint64 { - epoch := int(block / epochLength) - if epoch < maxEpoch { - return datasetSizes[epoch] - } - return calcDatasetSize(epoch) -} - -// calcDatasetSize calculates the dataset size for epoch. The dataset size grows linearly, -// however, we always take the highest prime below the linearly growing threshold in order -// to reduce the risk of accidental regularities leading to cyclic behavior. -func calcDatasetSize(epoch int) uint64 { - size := datasetInitBytes + datasetGrowthBytes*uint64(epoch) - mixBytes - for !new(big.Int).SetUint64(size / mixBytes).ProbablyPrime(1) { // Always accurate for n < 2^64 - size -= 2 * mixBytes - } - return size -} - -// hasher is a repetitive hasher allowing the same hash data structures to be -// reused between hash runs instead of requiring new ones to be created. -type hasher func(dest []byte, data []byte) - -// makeHasher creates a repetitive hasher, allowing the same hash data structures to -// be reused between hash runs instead of requiring new ones to be created. The returned -// function is not thread safe! -func makeHasher(h hash.Hash) hasher { - // sha3.state supports Read to get the sum, use it to avoid the overhead of Sum. - // Read alters the state but we reset the hash before every operation. - type readerHash interface { - hash.Hash - Read([]byte) (int, error) - } - rh, ok := h.(readerHash) - if !ok { - panic("can't find Read method on hash") - } - outputLen := rh.Size() - return func(dest []byte, data []byte) { - rh.Reset() - rh.Write(data) - rh.Read(dest[:outputLen]) - } -} - -// seedHash is the seed to use for generating a verification cache and the mining -// dataset. -func seedHash(block uint64) []byte { - seed := make([]byte, 32) - if block < epochLength { - return seed - } - keccak256 := makeHasher(sha3.NewLegacyKeccak256()) - for i := 0; i < int(block/epochLength); i++ { - keccak256(seed, seed) - } - return seed -} - -// generateCache creates a verification cache of a given size for an input seed. -// The cache production process involves first sequentially filling up 32 MB of -// memory, then performing two passes of Sergio Demian Lerner's RandMemoHash -// algorithm from Strict Memory Hard Hashing Functions (2014). The output is a -// set of 524288 64-byte values. -// This method places the result into dest in machine byte order. -func generateCache(dest []uint32, epoch uint64, seed []byte) { - // Print some debug logs to allow analysis on low end devices - logger := log.New("epoch", epoch) - - start := time.Now() - defer func() { - elapsed := time.Since(start) - - logFn := logger.Debug - if elapsed > 3*time.Second { - logFn = logger.Info - } - logFn("Generated ethash verification cache", "elapsed", common.PrettyDuration(elapsed)) - }() - // Convert our destination slice to a byte buffer - var cache []byte - cacheHdr := (*reflect.SliceHeader)(unsafe.Pointer(&cache)) - dstHdr := (*reflect.SliceHeader)(unsafe.Pointer(&dest)) - cacheHdr.Data = dstHdr.Data - cacheHdr.Len = dstHdr.Len * 4 - cacheHdr.Cap = dstHdr.Cap * 4 - - // Calculate the number of theoretical rows (we'll store in one buffer nonetheless) - size := uint64(len(cache)) - rows := int(size) / hashBytes - - // Start a monitoring goroutine to report progress on low end devices - var progress uint32 - - done := make(chan struct{}) - defer close(done) - - go func() { - for { - select { - case <-done: - return - case <-time.After(3 * time.Second): - logger.Info("Generating ethash verification cache", "percentage", atomic.LoadUint32(&progress)*100/uint32(rows)/(cacheRounds+1), "elapsed", common.PrettyDuration(time.Since(start))) - } - } - }() - // Create a hasher to reuse between invocations - keccak512 := makeHasher(sha3.NewLegacyKeccak512()) - - // Sequentially produce the initial dataset - keccak512(cache, seed) - for offset := uint64(hashBytes); offset < size; offset += hashBytes { - keccak512(cache[offset:], cache[offset-hashBytes:offset]) - atomic.AddUint32(&progress, 1) - } - // Use a low-round version of randmemohash - temp := make([]byte, hashBytes) - - for i := 0; i < cacheRounds; i++ { - for j := 0; j < rows; j++ { - var ( - srcOff = ((j - 1 + rows) % rows) * hashBytes - dstOff = j * hashBytes - xorOff = (binary.LittleEndian.Uint32(cache[dstOff:]) % uint32(rows)) * hashBytes - ) - bitutil.XORBytes(temp, cache[srcOff:srcOff+hashBytes], cache[xorOff:xorOff+hashBytes]) - keccak512(cache[dstOff:], temp) - - atomic.AddUint32(&progress, 1) - } - } - // Swap the byte order on big endian systems and return - if !isLittleEndian() { - swap(cache) - } -} - -// swap changes the byte order of the buffer assuming a uint32 representation. -func swap(buffer []byte) { - for i := 0; i < len(buffer); i += 4 { - binary.BigEndian.PutUint32(buffer[i:], binary.LittleEndian.Uint32(buffer[i:])) - } -} - -// fnv is an algorithm inspired by the FNV hash, which in some cases is used as -// a non-associative substitute for XOR. Note that we multiply the prime with -// the full 32-bit input, in contrast with the FNV-1 spec which multiplies the -// prime with one byte (octet) in turn. -func fnv(a, b uint32) uint32 { - return a*0x01000193 ^ b -} - -// fnvHash mixes in data into mix using the ethash fnv method. -func fnvHash(mix []uint32, data []uint32) { - for i := 0; i < len(mix); i++ { - mix[i] = mix[i]*0x01000193 ^ data[i] - } -} - -// generateDatasetItem combines data from 256 pseudorandomly selected cache nodes, -// and hashes that to compute a single dataset node. -func generateDatasetItem(cache []uint32, index uint32, keccak512 hasher) []byte { - // Calculate the number of theoretical rows (we use one buffer nonetheless) - rows := uint32(len(cache) / hashWords) - - // Initialize the mix - mix := make([]byte, hashBytes) - - binary.LittleEndian.PutUint32(mix, cache[(index%rows)*hashWords]^index) - for i := 1; i < hashWords; i++ { - binary.LittleEndian.PutUint32(mix[i*4:], cache[(index%rows)*hashWords+uint32(i)]) - } - keccak512(mix, mix) - - // Convert the mix to uint32s to avoid constant bit shifting - intMix := make([]uint32, hashWords) - for i := 0; i < len(intMix); i++ { - intMix[i] = binary.LittleEndian.Uint32(mix[i*4:]) - } - // fnv it with a lot of random cache nodes based on index - for i := uint32(0); i < datasetParents; i++ { - parent := fnv(index^i, intMix[i%16]) % rows - fnvHash(intMix, cache[parent*hashWords:]) - } - // Flatten the uint32 mix into a binary one and return - for i, val := range intMix { - binary.LittleEndian.PutUint32(mix[i*4:], val) - } - keccak512(mix, mix) - return mix -} - -// generateDataset generates the entire ethash dataset for mining. -// This method places the result into dest in machine byte order. -func generateDataset(dest []uint32, epoch uint64, cache []uint32) { - // Print some debug logs to allow analysis on low end devices - logger := log.New("epoch", epoch) - - start := time.Now() - defer func() { - elapsed := time.Since(start) - - logFn := logger.Debug - if elapsed > 3*time.Second { - logFn = logger.Info - } - logFn("Generated ethash verification cache", "elapsed", common.PrettyDuration(elapsed)) - }() - - // Figure out whether the bytes need to be swapped for the machine - swapped := !isLittleEndian() - - // Convert our destination slice to a byte buffer - var dataset []byte - datasetHdr := (*reflect.SliceHeader)(unsafe.Pointer(&dataset)) - destHdr := (*reflect.SliceHeader)(unsafe.Pointer(&dest)) - datasetHdr.Data = destHdr.Data - datasetHdr.Len = destHdr.Len * 4 - datasetHdr.Cap = destHdr.Cap * 4 - - // Generate the dataset on many goroutines since it takes a while - threads := runtime.NumCPU() - size := uint64(len(dataset)) - - var pend sync.WaitGroup - pend.Add(threads) - - var progress uint64 - for i := 0; i < threads; i++ { - go func(id int) { - defer pend.Done() - - // Create a hasher to reuse between invocations - keccak512 := makeHasher(sha3.NewLegacyKeccak512()) - - // Calculate the data segment this thread should generate - batch := (size + hashBytes*uint64(threads) - 1) / (hashBytes * uint64(threads)) - first := uint64(id) * batch - limit := first + batch - if limit > size/hashBytes { - limit = size / hashBytes - } - // Calculate the dataset segment - percent := size / hashBytes / 100 - for index := first; index < limit; index++ { - item := generateDatasetItem(cache, uint32(index), keccak512) - if swapped { - swap(item) - } - copy(dataset[index*hashBytes:], item) - - if status := atomic.AddUint64(&progress, 1); status%percent == 0 { - logger.Info("Generating DAG in progress", "percentage", (status*100)/(size/hashBytes), "elapsed", common.PrettyDuration(time.Since(start))) - } - } - }(i) - } - // Wait for all the generators to finish and return - pend.Wait() -} - -// hashimoto aggregates data from the full dataset in order to produce our final -// value for a particular header hash and nonce. -func hashimoto(hash []byte, nonce uint64, size uint64, lookup func(index uint32) []uint32) ([]byte, []byte) { - // Calculate the number of theoretical rows (we use one buffer nonetheless) - rows := uint32(size / mixBytes) - - // Combine header+nonce into a 64 byte seed - seed := make([]byte, 40) - copy(seed, hash) - binary.LittleEndian.PutUint64(seed[32:], nonce) - - seed = crypto.Keccak512(seed) - seedHead := binary.LittleEndian.Uint32(seed) - - // Start the mix with replicated seed - mix := make([]uint32, mixBytes/4) - for i := 0; i < len(mix); i++ { - mix[i] = binary.LittleEndian.Uint32(seed[i%16*4:]) - } - // Mix in random dataset nodes - temp := make([]uint32, len(mix)) - - for i := 0; i < loopAccesses; i++ { - parent := fnv(uint32(i)^seedHead, mix[i%len(mix)]) % rows - for j := uint32(0); j < mixBytes/hashBytes; j++ { - copy(temp[j*hashWords:], lookup(2*parent+j)) - } - fnvHash(mix, temp) - } - // Compress mix - for i := 0; i < len(mix); i += 4 { - mix[i/4] = fnv(fnv(fnv(mix[i], mix[i+1]), mix[i+2]), mix[i+3]) - } - mix = mix[:len(mix)/4] - - digest := make([]byte, common.HashLength) - for i, val := range mix { - binary.LittleEndian.PutUint32(digest[i*4:], val) - } - return digest, crypto.Keccak256(append(seed, digest...)) -} - -// hashimotoLight aggregates data from the full dataset (using only a small -// in-memory cache) in order to produce our final value for a particular header -// hash and nonce. -func hashimotoLight(size uint64, cache []uint32, hash []byte, nonce uint64) ([]byte, []byte) { - keccak512 := makeHasher(sha3.NewLegacyKeccak512()) - - lookup := func(index uint32) []uint32 { - rawData := generateDatasetItem(cache, index, keccak512) - - data := make([]uint32, len(rawData)/4) - for i := 0; i < len(data); i++ { - data[i] = binary.LittleEndian.Uint32(rawData[i*4:]) - } - return data - } - return hashimoto(hash, nonce, size, lookup) -} - -// hashimotoFull aggregates data from the full dataset (using the full in-memory -// dataset) in order to produce our final value for a particular header hash and -// nonce. -func hashimotoFull(dataset []uint32, hash []byte, nonce uint64) ([]byte, []byte) { - lookup := func(index uint32) []uint32 { - offset := index * hashWords - return dataset[offset : offset+hashWords] - } - return hashimoto(hash, nonce, uint64(len(dataset))*4, lookup) -} - -const maxEpoch = 2048 - -// datasetSizes is a lookup table for the ethash dataset size for the first 2048 -// epochs (i.e. 61440000 blocks). -var datasetSizes = [maxEpoch]uint64{ - 1073739904, 1082130304, 1090514816, 1098906752, 1107293056, - 1115684224, 1124070016, 1132461952, 1140849536, 1149232768, - 1157627776, 1166013824, 1174404736, 1182786944, 1191180416, - 1199568512, 1207958912, 1216345216, 1224732032, 1233124736, - 1241513344, 1249902464, 1258290304, 1266673792, 1275067264, - 1283453312, 1291844992, 1300234112, 1308619904, 1317010048, - 1325397376, 1333787776, 1342176128, 1350561664, 1358954368, - 1367339392, 1375731584, 1384118144, 1392507008, 1400897408, - 1409284736, 1417673344, 1426062464, 1434451072, 1442839168, - 1451229056, 1459615616, 1468006016, 1476394112, 1484782976, - 1493171584, 1501559168, 1509948032, 1518337664, 1526726528, - 1535114624, 1543503488, 1551892096, 1560278656, 1568669056, - 1577056384, 1585446272, 1593831296, 1602219392, 1610610304, - 1619000192, 1627386752, 1635773824, 1644164224, 1652555648, - 1660943488, 1669332608, 1677721216, 1686109312, 1694497664, - 1702886272, 1711274624, 1719661184, 1728047744, 1736434816, - 1744829056, 1753218944, 1761606272, 1769995904, 1778382464, - 1786772864, 1795157888, 1803550592, 1811937664, 1820327552, - 1828711552, 1837102976, 1845488768, 1853879936, 1862269312, - 1870656896, 1879048064, 1887431552, 1895825024, 1904212096, - 1912601216, 1920988544, 1929379456, 1937765504, 1946156672, - 1954543232, 1962932096, 1971321728, 1979707264, 1988093056, - 1996487552, 2004874624, 2013262208, 2021653888, 2030039936, - 2038430848, 2046819968, 2055208576, 2063596672, 2071981952, - 2080373632, 2088762752, 2097149056, 2105539712, 2113928576, - 2122315136, 2130700672, 2139092608, 2147483264, 2155872128, - 2164257664, 2172642176, 2181035392, 2189426048, 2197814912, - 2206203008, 2214587264, 2222979712, 2231367808, 2239758208, - 2248145024, 2256527744, 2264922752, 2273312128, 2281701248, - 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10091495296, 10099878784, 10108272256, 10116660608, 10125049216, - 10133437312, 10141825664, 10150213504, 10158601088, 10166991232, - 10175378816, 10183766144, 10192157312, 10200545408, 10208935552, - 10217322112, 10225712768, 10234099328, 10242489472, 10250876032, - 10259264896, 10267656064, 10276042624, 10284429184, 10292820352, - 10301209472, 10309598848, 10317987712, 10326375296, 10334763392, - 10343153536, 10351541632, 10359930752, 10368318592, 10376707456, - 10385096576, 10393484672, 10401867136, 10410262144, 10418647424, - 10427039104, 10435425664, 10443810176, 10452203648, 10460589952, - 10468982144, 10477369472, 10485759104, 10494147712, 10502533504, - 10510923392, 10519313536, 10527702656, 10536091264, 10544478592, - 10552867712, 10561255808, 10569642368, 10578032768, 10586423168, - 10594805632, 10603200128, 10611588992, 10619976064, 10628361344, - 10636754048, 10645143424, 10653531776, 10661920384, 10670307968, - 10678696832, 10687086464, 10695475072, 10703863168, 10712246144, - 10720639616, 10729026688, 10737414784, 10745806208, 10754190976, - 10762581376, 10770971264, 10779356288, 10787747456, 10796135552, - 10804525184, 10812915584, 10821301888, 10829692288, 10838078336, - 10846469248, 10854858368, 10863247232, 10871631488, 10880023424, - 10888412032, 10896799616, 10905188992, 10913574016, 10921964672, - 10930352768, 10938742912, 10947132544, 10955518592, 10963909504, - 10972298368, 10980687488, 10989074816, 10997462912, 11005851776, - 11014241152, 11022627712, 11031017344, 11039403904, 11047793024, - 11056184704, 11064570752, 11072960896, 11081343872, 11089737856, - 11098128256, 11106514816, 11114904448, 11123293568, 11131680128, - 11140065152, 11148458368, 11156845696, 11165236864, 11173624192, - 11182013824, 11190402688, 11198790784, 11207179136, 11215568768, - 11223957376, 11232345728, 11240734592, 11249122688, 11257511296, - 11265899648, 11274285952, 11282675584, 11291065472, 11299452544, - 11307842432, 11316231296, 11324616832, 11333009024, 11341395584, - 11349782656, 11358172288, 11366560384, 11374950016, 11383339648, - 11391721856, 11400117376, 11408504192, 11416893568, 11425283456, - 11433671552, 11442061184, 11450444672, 11458837888, 11467226752, - 11475611776, 11484003968, 11492392064, 11500780672, 11509169024, - 11517550976, 11525944448, 11534335616, 11542724224, 11551111808, - 11559500672, 11567890304, 11576277376, 11584667008, 11593056128, - 11601443456, 11609830016, 11618221952, 11626607488, 11634995072, - 11643387776, 11651775104, 11660161664, 11668552576, 11676940928, - 11685330304, 11693718656, 11702106496, 11710496128, 11718882688, - 11727273088, 11735660416, 11744050048, 11752437376, 11760824704, - 11769216128, 11777604736, 11785991296, 11794381952, 11802770048, - 11811157888, 11819548544, 11827932544, 11836324736, 11844713344, - 11853100928, 11861486464, 11869879936, 11878268032, 11886656896, - 11895044992, 11903433088, 11911822976, 11920210816, 11928600448, - 11936987264, 11945375872, 11953761152, 11962151296, 11970543488, - 11978928512, 11987320448, 11995708288, 12004095104, 12012486272, - 12020875136, 12029255552, 12037652096, 12046039168, 12054429568, - 12062813824, 12071206528, 12079594624, 12087983744, 12096371072, - 12104759936, 12113147264, 12121534592, 12129924992, 12138314624, - 12146703232, 12155091584, 12163481216, 12171864704, 12180255872, - 12188643968, 12197034112, 12205424512, 12213811328, 12222199424, - 12230590336, 12238977664, 12247365248, 12255755392, 12264143488, - 12272531584, 12280920448, 12289309568, 12297694592, 12306086528, - 12314475392, 12322865024, 12331253632, 12339640448, 12348029312, - 12356418944, 12364805248, 12373196672, 12381580928, 12389969024, - 12398357632, 12406750592, 12415138432, 12423527552, 12431916416, - 12440304512, 12448692352, 12457081216, 12465467776, 12473859968, - 12482245504, 12490636672, 12499025536, 12507411584, 12515801728, - 12524190592, 12532577152, 12540966272, 12549354368, 12557743232, - 12566129536, 12574523264, 12582911872, 12591299456, 12599688064, - 12608074624, 12616463488, 12624845696, 12633239936, 12641631616, - 12650019968, 12658407296, 12666795136, 12675183232, 12683574656, - 12691960192, 12700350592, 12708740224, 12717128576, 12725515904, - 12733906816, 12742295168, 12750680192, 12759071872, 12767460736, - 12775848832, 12784236928, 12792626816, 12801014656, 12809404288, - 12817789312, 12826181504, 12834568832, 12842954624, 12851345792, - 12859732352, 12868122496, 12876512128, 12884901248, 12893289088, - 12901672832, 12910067584, 12918455168, 12926842496, 12935232896, - 12943620736, 12952009856, 12960396928, 12968786816, 12977176192, - 12985563776, 12993951104, 13002341504, 13010730368, 13019115392, - 13027506304, 13035895168, 13044272512, 13052673152, 13061062528, - 13069446272, 13077838976, 13086227072, 13094613632, 13103000192, - 13111393664, 13119782528, 13128157568, 13136559232, 13144945024, - 13153329536, 13161724288, 13170111872, 13178502784, 13186884736, - 13195279744, 13203667072, 13212057472, 13220445824, 13228832128, - 13237221248, 13245610624, 13254000512, 13262388352, 13270777472, - 13279166336, 13287553408, 13295943296, 13304331904, 13312719488, - 13321108096, 13329494656, 13337885824, 13346274944, 13354663808, - 13363051136, 13371439232, 13379825024, 13388210816, 13396605056, - 13404995456, 13413380224, 13421771392, 13430159744, 13438546048, - 13446937216, 13455326848, 13463708288, 13472103808, 13480492672, - 13488875648, 13497269888, 13505657728, 13514045312, 13522435712, - 13530824576, 13539210112, 13547599232, 13555989376, 13564379008, - 13572766336, 13581154432, 13589544832, 13597932928, 13606320512, - 13614710656, 13623097472, 13631477632, 13639874944, 13648264064, - 13656652928, 13665041792, 13673430656, 13681818496, 13690207616, - 13698595712, 13706982272, 13715373184, 13723762048, 13732150144, - 13740536704, 13748926592, 13757316224, 13765700992, 13774090112, - 13782477952, 13790869376, 13799259008, 13807647872, 13816036736, - 13824425344, 13832814208, 13841202304, 13849591424, 13857978752, - 13866368896, 13874754688, 13883145344, 13891533184, 13899919232, - 13908311168, 13916692096, 13925085056, 13933473152, 13941866368, - 13950253696, 13958643584, 13967032192, 13975417216, 13983807616, - 13992197504, 14000582272, 14008973696, 14017363072, 14025752192, - 14034137984, 14042528384, 14050918016, 14059301504, 14067691648, - 14076083584, 14084470144, 14092852352, 14101249664, 14109635968, - 14118024832, 14126407552, 14134804352, 14143188608, 14151577984, - 14159968384, 14168357248, 14176741504, 14185127296, 14193521024, - 14201911424, 14210301824, 14218685056, 14227067264, 14235467392, - 14243855488, 14252243072, 14260630144, 14269021568, 14277409408, - 14285799296, 14294187904, 14302571392, 14310961792, 14319353728, - 14327738752, 14336130944, 14344518784, 14352906368, 14361296512, - 14369685376, 14378071424, 14386462592, 14394848128, 14403230848, - 14411627392, 14420013952, 14428402304, 14436793472, 14445181568, - 14453569664, 14461959808, 14470347904, 14478737024, 14487122816, - 14495511424, 14503901824, 14512291712, 14520677504, 14529064832, - 14537456768, 14545845632, 14554234496, 14562618496, 14571011456, - 14579398784, 14587789184, 14596172672, 14604564608, 14612953984, - 14621341312, 14629724288, 14638120832, 14646503296, 14654897536, - 14663284864, 14671675264, 14680061056, 14688447616, 14696835968, - 14705228416, 14713616768, 14722003328, 14730392192, 14738784128, - 14747172736, 14755561088, 14763947648, 14772336512, 14780725376, - 14789110144, 14797499776, 14805892736, 14814276992, 14822670208, - 14831056256, 14839444352, 14847836032, 14856222848, 14864612992, - 14872997504, 14881388672, 14889775744, 14898165376, 14906553472, - 14914944896, 14923329664, 14931721856, 14940109696, 14948497024, - 14956887424, 14965276544, 14973663616, 14982053248, 14990439808, - 14998830976, 15007216768, 15015605888, 15023995264, 15032385152, - 15040768384, 15049154944, 15057549184, 15065939072, 15074328448, - 15082715008, 15091104128, 15099493504, 15107879296, 15116269184, - 15124659584, 15133042304, 15141431936, 15149824384, 15158214272, - 15166602368, 15174991232, 15183378304, 15191760512, 15200154496, - 15208542592, 15216931712, 15225323392, 15233708416, 15242098048, - 15250489216, 15258875264, 15267265408, 15275654528, 15284043136, - 15292431488, 15300819584, 15309208192, 15317596544, 15325986176, - 15334374784, 15342763648, 15351151744, 15359540608, 15367929728, - 15376318336, 15384706432, 15393092992, 15401481856, 15409869952, - 15418258816, 15426649984, 15435037568, 15443425664, 15451815296, - 15460203392, 15468589184, 15476979328, 15485369216, 15493755776, - 15502146944, 15510534272, 15518924416, 15527311232, 15535699072, - 15544089472, 15552478336, 15560866688, 15569254528, 15577642624, - 15586031488, 15594419072, 15602809472, 15611199104, 15619586432, - 15627975296, 15636364928, 15644753792, 15653141888, 15661529216, - 15669918848, 15678305152, 15686696576, 15695083136, 15703474048, - 15711861632, 15720251264, 15728636288, 15737027456, 15745417088, - 15753804928, 15762194048, 15770582656, 15778971008, 15787358336, - 15795747712, 15804132224, 15812523392, 15820909696, 15829300096, - 15837691264, 15846071936, 15854466944, 15862855808, 15871244672, - 15879634816, 15888020608, 15896409728, 15904799104, 15913185152, - 15921577088, 15929966464, 15938354816, 15946743424, 15955129472, - 15963519872, 15971907968, 15980296064, 15988684928, 15997073024, - 16005460864, 16013851264, 16022241152, 16030629248, 16039012736, - 16047406976, 16055794816, 16064181376, 16072571264, 16080957824, - 16089346688, 16097737856, 16106125184, 16114514816, 16122904192, - 16131292544, 16139678848, 16148066944, 16156453504, 16164839552, - 16173236096, 16181623424, 16190012032, 16198401152, 16206790528, - 16215177344, 16223567744, 16231956352, 16240344704, 16248731008, - 16257117824, 16265504384, 16273898624, 16282281856, 16290668672, - 16299064192, 16307449216, 16315842176, 16324230016, 16332613504, - 16341006464, 16349394304, 16357783168, 16366172288, 16374561664, - 16382951296, 16391337856, 16399726208, 16408116352, 16416505472, - 16424892032, 16433282176, 16441668224, 16450058624, 16458448768, - 16466836864, 16475224448, 16483613056, 16492001408, 16500391808, - 16508779648, 16517166976, 16525555328, 16533944192, 16542330752, - 16550719616, 16559110528, 16567497088, 16575888512, 16584274816, - 16592665472, 16601051008, 16609442944, 16617832064, 16626218624, - 16634607488, 16642996096, 16651385728, 16659773824, 16668163712, - 16676552576, 16684938112, 16693328768, 16701718144, 16710095488, - 16718492288, 16726883968, 16735272832, 16743661184, 16752049792, - 16760436608, 16768827008, 16777214336, 16785599104, 16793992832, - 16802381696, 16810768768, 16819151744, 16827542656, 16835934848, - 16844323712, 16852711552, 16861101952, 16869489536, 16877876864, - 16886265728, 16894653056, 16903044736, 16911431296, 16919821696, - 16928207488, 16936592768, 16944987776, 16953375616, 16961763968, - 16970152832, 16978540928, 16986929536, 16995319168, 17003704448, - 17012096896, 17020481152, 17028870784, 17037262208, 17045649536, - 17054039936, 17062426496, 17070814336, 17079205504, 17087592064, - 17095978112, 17104369024, 17112759424, 17121147776, 17129536384, - 17137926016, 17146314368, 17154700928, 17163089792, 17171480192, - 17179864192, 17188256896, 17196644992, 17205033856, 17213423488, - 17221811072, 17230198912, 17238588032, 17246976896, 17255360384, - 17263754624, 17272143232, 17280530048, 17288918912, 17297309312, - 17305696384, 17314085504, 17322475136, 17330863744, 17339252096, - 17347640192, 17356026496, 17364413824, 17372796544, 17381190016, - 17389583488, 17397972608, 17406360704, 17414748544, 17423135872, - 17431527296, 17439915904, 17448303232, 17456691584, 17465081728, - 17473468288, 17481857408, 17490247552, 17498635904, 17507022464, - 17515409024, 17523801728, 17532189824, 17540577664, 17548966016, - 17557353344, 17565741184, 17574131584, 17582519168, 17590907008, - 17599296128, 17607687808, 17616076672, 17624455808, 17632852352, - 17641238656, 17649630848, 17658018944, 17666403968, 17674794112, - 17683178368, 17691573376, 17699962496, 17708350592, 17716739968, - 17725126528, 17733517184, 17741898112, 17750293888, 17758673024, - 17767070336, 17775458432, 17783848832, 17792236928, 17800625536, - 17809012352, 17817402752, 17825785984, 17834178944, 17842563968, - 17850955648, 17859344512, 17867732864, 17876119424, 17884511872, - 17892900224, 17901287296, 17909677696, 17918058112, 17926451072, - 17934843776, 17943230848, 17951609216, 17960008576, 17968397696, - 17976784256, 17985175424, 17993564032, 18001952128, 18010339712, - 18018728576, 18027116672, 18035503232, 18043894144, 18052283264, - 18060672128, 18069056384, 18077449856, 18085837184, 18094225792, - 18102613376, 18111004544, 18119388544, 18127781248, 18136170368, - 18144558976, 18152947328, 18161336192, 18169724288, 18178108544, - 18186498944, 18194886784, 18203275648, 18211666048, 18220048768, - 18228444544, 18236833408, 18245220736} - -// cacheSizes is a lookup table for the ethash verification cache size for the -// first 2048 epochs (i.e. 61440000 blocks). -var cacheSizes = [maxEpoch]uint64{ - 16776896, 16907456, 17039296, 17170112, 17301056, 17432512, 17563072, - 17693888, 17824192, 17955904, 18087488, 18218176, 18349504, 18481088, - 18611392, 18742336, 18874304, 19004224, 19135936, 19267264, 19398208, - 19529408, 19660096, 19791424, 19922752, 20053952, 20184896, 20315968, - 20446912, 20576576, 20709184, 20840384, 20971072, 21102272, 21233216, - 21364544, 21494848, 21626816, 21757376, 21887552, 22019392, 22151104, - 22281536, 22412224, 22543936, 22675264, 22806464, 22935872, 23068096, - 23198272, 23330752, 23459008, 23592512, 23723968, 23854912, 23986112, - 24116672, 24247616, 24378688, 24509504, 24640832, 24772544, 24903488, - 25034432, 25165376, 25296704, 25427392, 25558592, 25690048, 25820096, - 25951936, 26081728, 26214208, 26345024, 26476096, 26606656, 26737472, - 26869184, 26998208, 27131584, 27262528, 27393728, 27523904, 27655744, - 27786688, 27917888, 28049344, 28179904, 28311488, 28441792, 28573504, - 28700864, 28835648, 28966208, 29096768, 29228608, 29359808, 29490752, - 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247987648, 248116928, 248249536, 248380736, 248512064, 248643008, - 248773312, 248901056, 249036608, 249167552, 249298624, 249429184, - 249560512, 249692096, 249822784, 249954112, 250085312, 250215488, - 250345792, 250478528, 250608704, 250739264, 250870976, 251002816, - 251133632, 251263552, 251395136, 251523904, 251657792, 251789248, - 251919424, 252051392, 252182464, 252313408, 252444224, 252575552, - 252706624, 252836032, 252968512, 253099712, 253227584, 253361728, - 253493056, 253623488, 253754432, 253885504, 254017216, 254148032, - 254279488, 254410432, 254541376, 254672576, 254803264, 254933824, - 255065792, 255196736, 255326528, 255458752, 255589952, 255721408, - 255851072, 255983296, 256114624, 256244416, 256374208, 256507712, - 256636096, 256768832, 256900544, 257031616, 257162176, 257294272, - 257424448, 257555776, 257686976, 257818432, 257949632, 258079552, - 258211136, 258342464, 258473408, 258603712, 258734656, 258867008, - 258996544, 259127744, 259260224, 259391296, 259522112, 259651904, - 259784384, 259915328, 260045888, 260175424, 260308544, 260438336, - 260570944, 260700992, 260832448, 260963776, 261092672, 261226304, - 261356864, 261487936, 261619648, 261750592, 261879872, 262011968, - 262143424, 262274752, 262404416, 262537024, 262667968, 262799296, - 262928704, 263061184, 263191744, 263322944, 263454656, 263585216, - 263716672, 263847872, 263978944, 264108608, 264241088, 264371648, - 264501184, 264632768, 264764096, 264895936, 265024576, 265158464, - 265287488, 265418432, 265550528, 265681216, 265813312, 265943488, - 266075968, 266206144, 266337728, 266468032, 266600384, 266731072, - 266862272, 266993344, 267124288, 267255616, 267386432, 267516992, - 267648704, 267777728, 267910592, 268040512, 268172096, 268302784, - 268435264, 268566208, 268696256, 268828096, 268959296, 269090368, - 269221312, 269352256, 269482688, 269614784, 269745856, 269876416, - 270007616, 270139328, 270270272, 270401216, 270531904, 270663616, - 270791744, 270924736, 271056832, 271186112, 271317184, 271449536, - 271580992, 271711936, 271843136, 271973056, 272105408, 272236352, - 272367296, 272498368, 272629568, 272759488, 272891456, 273022784, - 273153856, 273284672, 273415616, 273547072, 273677632, 273808448, - 273937088, 274071488, 274200896, 274332992, 274463296, 274595392, - 274726208, 274857536, 274988992, 275118656, 275250496, 275382208, - 275513024, 275643968, 275775296, 275906368, 276037184, 276167872, - 276297664, 276429376, 276560576, 276692672, 276822976, 276955072, - 277085632, 277216832, 277347008, 277478848, 277609664, 277740992, - 277868608, 278002624, 278134336, 278265536, 278395328, 278526784, - 278657728, 278789824, 278921152, 279052096, 279182912, 279313088, - 279443776, 279576256, 279706048, 279838528, 279969728, 280099648, - 280230976, 280361408, 280493632, 280622528, 280755392, 280887104, - 281018176, 281147968, 281278912, 281411392, 281542592, 281673152, - 281803712, 281935552, 282066496, 282197312, 282329024, 282458816, - 282590272, 282720832, 282853184, 282983744, 283115072, 283246144, - 283377344, 283508416, 283639744, 283770304, 283901504, 284032576, - 284163136, 284294848, 284426176, 284556992, 284687296, 284819264, - 284950208, 285081536} diff --git a/consensus/ethash/algorithm_test.go b/consensus/ethash/algorithm_test.go deleted file mode 100644 index 1ae25005f..000000000 --- a/consensus/ethash/algorithm_test.go +++ /dev/null @@ -1,817 +0,0 @@ -// Copyright 2017 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package ethash - -import ( - "bytes" - "encoding/binary" - "math/big" - "os" - "reflect" - "sync" - "testing" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/core/types" -) - -// prepare converts an ethash cache or dataset from a byte stream into the internal -// int representation. All ethash methods work with ints to avoid constant byte to -// int conversions as well as to handle both little and big endian systems. -func prepare(dest []uint32, src []byte) { - for i := 0; i < len(dest); i++ { - dest[i] = binary.LittleEndian.Uint32(src[i*4:]) - } -} - -// Tests whether the dataset size calculator works correctly by cross checking the -// hard coded lookup table with the value generated by it. -func TestSizeCalculations(t *testing.T) { - // Verify all the cache and dataset sizes from the lookup table. - for epoch, want := range cacheSizes { - if size := calcCacheSize(epoch); size != want { - t.Errorf("cache %d: cache size mismatch: have %d, want %d", epoch, size, want) - } - } - for epoch, want := range datasetSizes { - if size := calcDatasetSize(epoch); size != want { - t.Errorf("dataset %d: dataset size mismatch: have %d, want %d", epoch, size, want) - } - } -} - -// Tests that verification caches can be correctly generated. -func TestCacheGeneration(t *testing.T) { - tests := []struct { - size uint64 - epoch uint64 - cache []byte - }{ - { - size: 1024, - epoch: 0, - cache: hexutil.MustDecode("0x" + - "7ce2991c951f7bf4c4c1bb119887ee07871eb5339d7b97b8588e85c742de90e5bafd5bbe6ce93a134fb6be9ad3e30db99d9528a2ea7846833f52e9ca119b6b54" + - "8979480c46e19972bd0738779c932c1b43e665a2fd3122fc3ddb2691f353ceb0ed3e38b8f51fd55b6940290743563c9f8fa8822e611924657501a12aafab8a8d" + - "88fb5fbae3a99d14792406672e783a06940a42799b1c38bc28715db6d37cb11f9f6b24e386dc52dd8c286bd8c36fa813dffe4448a9f56ebcbeea866b42f68d22" + - "6c32aae4d695a23cab28fd74af53b0c2efcc180ceaaccc0b2e280103d097a03c1d1b0f0f26ce5f32a90238f9bc49f645db001ef9cd3d13d44743f841fad11a37" + - "fa290c62c16042f703578921f30b9951465aae2af4a5dad43a7341d7b4a62750954965a47a1c3af638dc3495c4d62a9bab843168c9fc0114e79cffd1b2827b01" + - "75d30ba054658f214e946cf24c43b40d3383fbb0493408e5c5392434ca21bbcf43200dfb876c713d201813934fa485f48767c5915745cf0986b1dc0f33e57748" + - "bf483ee2aff4248dfe461ec0504a13628401020fc22638584a8f2f5206a13b2f233898c78359b21c8226024d0a7a93df5eb6c282bdbf005a4aab497e096f2847" + - "76c71cee57932a8fb89f6d6b8743b60a4ea374899a94a2e0f218d5c55818cefb1790c8529a76dba31ebb0f4592d709b49587d2317970d39c086f18dd244291d9" + - "eedb16705e53e3350591bd4ff4566a3595ac0f0ce24b5e112a3d033bc51b6fea0a92296dea7f5e20bf6ee6bc347d868fda193c395b9bb147e55e5a9f67cfe741" + - "7eea7d699b155bd13804204df7ea91fa9249e4474dddf35188f77019c67d201e4c10d7079c5ad492a71afff9a23ca7e900ba7d1bdeaf3270514d8eb35eab8a0a" + - "718bb7273aeb37768fa589ed8ab01fbf4027f4ebdbbae128d21e485f061c20183a9bc2e31edbda0727442e9d58eb0fe198440fe199e02e77c0f7b99973f1f74c" + - "c9089a51ab96c94a84d66e6aa48b2d0a4543adb5a789039a2aa7b335ca85c91026c7d3c894da53ae364188c3fd92f78e01d080399884a47385aa792e38150cda" + - "a8620b2ebeca41fbc773bb837b5e724d6eb2de570d99858df0d7d97067fb8103b21757873b735097b35d3bea8fd1c359a9e8a63c1540c76c9784cf8d975e995c" + - "778401b94a2e66e6993ad67ad3ecdc2acb17779f1ea8606827ec92b11c728f8c3b6d3f04a3e6ed05ff81dd76d5dc5695a50377bc135aaf1671cf68b750315493" + - "6c64510164d53312bf3c41740c7a237b05faf4a191bd8a95dafa068dbcf370255c725900ce5c934f36feadcfe55b687c440574c1f06f39d207a8553d39156a24" + - "845f64fd8324bb85312979dead74f764c9677aab89801ad4f927f1c00f12e28f22422bb44200d1969d9ab377dd6b099dc6dbc3222e9321b2c1e84f8e2f07731c"), - }, - { - size: 1024, - epoch: 1, - cache: hexutil.MustDecode("0x" + - "1f56855d59cc5a085720899b4377a0198f1abe948d85fe5820dc0e346b7c0931b9cde8e541d751de3b2b3275d0aabfae316209d5879297d8bd99f8a033c9d4df" + - "35add1029f4e6404a022d504fb8023e42989aba985a65933b0109c7218854356f9284983c9e7de97de591828ae348b63d1fc78d8db58157344d4e06530ffd422" + - "5c7f6080d451ff94961ec2dd9e28e6d81b49102451676dbdcb6ef1094c1e8b29e7e808d47b2ba5aeb52dabf00d5f0ee08c116289cbf56d8132e5ca557c3d6220" + - "5ba3a48539acabfd4ca3c89e3aaa668e24ffeaeb9eb0136a9fc5a8a676b6d5ad76175eeda0a1fa44b5ff5591079e4b7f581569b6c82416adcb82d7e92980df67" + - "2248c4024013e7be52cf91a82491627d9e6d80eda2770ab82badc5e120cd33a4c84495f718b57396a8f397e797087fad81fa50f0e2f5da71e40816a85de35a96" + - "3cd351364905c45b3116ff25851d43a2ca1d2aa5cdb408440dabef8c57778fc18608bf431d0c7ffd37649a21a7bb9d90def39c821669dbaf165c0262434dfb08" + - "5d057a12de4a7a59fd2dfc931c29c20371abf748b69b618a9bd485b3fb3166cad4d3d27edf0197aabeceb28b96670bdf020f26d1bb9b564aaf82d866bdffd6d4" + - "1aea89e20b15a5d1264ab01d1556bfc2a266081609d60928216bd9646038f07de9fedcc9f2b86ab1b07d7bd88ba1df08b3d89b2ac789001b48a723f217debcb7" + - "090303a3ef50c1d5d99a75c640ec2b401ab149e06511753d8c49cafdde2929ae61e09cc0f0319d262869d21ead9e0cf5ff2de3dbedfb994f32432d2e4aa44c82" + - "7c42781d1477fe03ea0772998e776d63363c6c3edd2d52c89b4d2c9d89cdd90fa33b2b41c8e3f78ef06fe90bcf5cc5756d33a032f16b744141aaa8852bb4cb3a" + - "40792b93489c6d6e56c235ec4aa36c263e9b766a4daaff34b2ea709f9f811aef498a65bfbc1deffd36fcc4d1a123345fac7bf57a1fb50394843cd28976a6c7ff" + - "fe70f7b8d8f384aa06e2c9964c92a8788cef397fffdd35181b42a35d5d98cd7244bbd09e802888d7efc0311ae58e0961e3656205df4bdc553f317df4b6ede4ca" + - "846294a32aec830ab1aa5aac4e78b821c35c70fd752fec353e373bf9be656e775a0111bcbeffdfebd3bd5251d27b9f6971aa561a2bd27a99d61b2ce3965c3726" + - "1e114353e6a31b09340f4078b8a8c6ce6ff4213067a8f21020f78aff4f8b472b701ef730aacb8ce7806ea31b14abe8f8efdd6357ca299d339abc4e43ba324ad1" + - "efe6eb1a5a6e137daa6ec9f6be30931ca368a944cfcf2a0a29f9a9664188f0466e6f078c347f9fe26a9a89d2029462b19245f24ace47aecace6ef85a4e96b31b" + - "5f470eb0165c6375eb8f245d50a25d521d1e569e3b2dccce626752bb26eae624a24511e831a81fab6898a791579f462574ca4851e6588116493dbccc3072e0c5"), - }, - } - for i, tt := range tests { - cache := make([]uint32, tt.size/4) - generateCache(cache, tt.epoch, seedHash(tt.epoch*epochLength+1)) - - want := make([]uint32, tt.size/4) - prepare(want, tt.cache) - - if !reflect.DeepEqual(cache, want) { - t.Errorf("cache %d: content mismatch: have %x, want %x", i, cache, want) - } - } -} - -func TestDatasetGeneration(t *testing.T) { - tests := []struct { - epoch uint64 - cacheSize uint64 - datasetSize uint64 - dataset []byte - }{ - { - epoch: 0, - cacheSize: 1024, - datasetSize: 32 * 1024, - dataset: hexutil.MustDecode("0x" + - "4bc09fbd530a041dd2ec296110a29e8f130f179c59d223f51ecce3126e8b0c74326abc2f32ccd9d7f976bd0944e3ccf8479db39343cbbffa467046ca97e2da63" + - "da5f9d9688c7c33ab7b8aace570e422fa48b24659b72fc534669209d66389ca15b099c5604601e7581488e3bd6925cec0f12d465f8004d4fa84793f8e1e46a1b" + - "31b7298991c6142f4f0b6e6b296728ae5fa63ccb667b61fbb1b078003d18d97b906af157debed5e6c55d5a61cae90c85f9e97d565314a2f9fd9e0c08430547d0" + - "7cfcee3271f921b95c32a11596219abaa30abc62c2c72c6725078c436c677320594df6bcb92134c1b114fffec982a1f68f13a9f812f074b9fb9c78f2cd4c1c90" + - "7ebf1e447f7a422b06303921e3d54f430584d849eaa4b7d652e92a5d659bdfc462adcdd7991e8c66a19da4ddb5390463d073941491859397f135ebbbdbdf5801" + - "cafb873c383893390141ae385515504d74a33608273310c312ba468046d2e20c271a38cc0e3920b39705050e752f34f244fc23ddd17ff18677756a87671d4145" + - "3aebf97e4890da1d645f41eb20da92a8537c787ce419580073c46aa3bb154952993142ec5b4fb6e8f108fd15fc618cd5c27b45a37ee6dcd52a4ce656c0f58604" + - "717ec55f5e592355f1f20e8316f8fd77243734a8b0f50ad93c1d95b5b0482afb22cd0667d935bd6053d7198b54974e10d100df7ca3ec2e0bb5ccce5807b266e0" + - "8429d5fec2ae6ae1cc7c5efc27f19c89d4b4a6c5c0b9397886dac635ba37446ff528b582457a4fe7f803f1a47903574f8982d4a679b627396a4e97aaa12fa179" + - "0d31ba52e9010bc3c26ace81f702f86649fe9eeda9ec03b74a8a5cf540d82e22af33ab893564397dfc4edd8b1677350df5b82ab61d24db95f58fd2d78afb49c7" + - 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"767f2a60ce3d224afcff9cdc19e9b28830d33affda6af99942a8fe39562055f3e884fd6c1ebc1908ac159061f35e9b0da80434ce9673d9c6b87265170077c670" + - "743e37474d7605cd01c44af600f16d9ffaf24acf87fbe5ccf39bac41047a810d210051c87f06147a0bb8f1427a406700483679638f1af23f1dafb7aa0c468669" + - "71c3a82f535c26cf6cb335e8e915fda393799d3dbe0e04b907ed3612d12ac95783a6876cd986d2a13b82192532e02c250eaa42f891d2481655fa4494c723fe00" + - "87d224444245eb5b0eade5f741b025db1992a8ad0dce51b0c1af4a18a9e244f9f755891adf0f19179c7baa6c32bffc91e0b03c4ed3aaee1978b6a1f03b87ac6a" + - "fc3b9e7030bb212b17de198edfccde29d04224798c1204e47ea235f048724fac62d637d1ba0ee3922048fcf79c746b6c0c036d882e3491fd72bad6e009c6403e" + - "55876f4d31330caa02aedd0b0c121c3c41e736853a08071f0dd4ddc7412db0bbe274a9ac2932552bb37c40e72c2ef1d7cca8236942e480d709d3ea9d5ae0a1b7", - ), - }, - } - for i, tt := range tests { - cache := make([]uint32, tt.cacheSize/4) - generateCache(cache, tt.epoch, seedHash(tt.epoch*epochLength+1)) - - dataset := make([]uint32, tt.datasetSize/4) - generateDataset(dataset, tt.epoch, cache) - - want := make([]uint32, tt.datasetSize/4) - prepare(want, tt.dataset) - - if !reflect.DeepEqual(dataset, want) { - t.Errorf("dataset %d: content mismatch: have %x, want %x", i, dataset, want) - } - } -} - -// Tests whether the hashimoto lookup works for both light as well as the full -// datasets. -func TestHashimoto(t *testing.T) { - // Create the verification cache and mining dataset - cache := make([]uint32, 1024/4) - generateCache(cache, 0, make([]byte, 32)) - - dataset := make([]uint32, 32*1024/4) - generateDataset(dataset, 0, cache) - - // Create a block to verify - hash := hexutil.MustDecode("0xc9149cc0386e689d789a1c2f3d5d169a61a6218ed30e74414dc736e442ef3d1f") - nonce := uint64(0) - - wantDigest := hexutil.MustDecode("0xe4073cffaef931d37117cefd9afd27ea0f1cad6a981dd2605c4a1ac97c519800") - wantResult := hexutil.MustDecode("0xd3539235ee2e6f8db665c0a72169f55b7f6c605712330b778ec3944f0eb5a557") - - digest, result := hashimotoLight(32*1024, cache, hash, nonce) - if !bytes.Equal(digest, wantDigest) { - t.Errorf("light hashimoto digest mismatch: have %x, want %x", digest, wantDigest) - } - if !bytes.Equal(result, wantResult) { - t.Errorf("light hashimoto result mismatch: have %x, want %x", result, wantResult) - } - digest, result = hashimotoFull(dataset, hash, nonce) - if !bytes.Equal(digest, wantDigest) { - t.Errorf("full hashimoto digest mismatch: have %x, want %x", digest, wantDigest) - } - if !bytes.Equal(result, wantResult) { - t.Errorf("full hashimoto result mismatch: have %x, want %x", result, wantResult) - } -} - -// Tests that caches generated on disk may be done concurrently. -func TestConcurrentDiskCacheGeneration(t *testing.T) { - // Create a temp folder to generate the caches into - cachedir, err := os.MkdirTemp("", "") - if err != nil { - t.Fatalf("Failed to create temporary cache dir: %v", err) - } - defer os.RemoveAll(cachedir) - - // Define a heavy enough block, one from mainnet should do - block := types.NewBlockWithHeader(&types.Header{ - Number: big.NewInt(3311058), - ParentHash: common.HexToHash("0xd783efa4d392943503f28438ad5830b2d5964696ffc285f338585e9fe0a37a05"), - UncleHash: common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"), - Coinbase: common.HexToAddress("0xc0ea08a2d404d3172d2add29a45be56da40e2949"), - Root: common.HexToHash("0x77d14e10470b5850332524f8cd6f69ad21f070ce92dca33ab2858300242ef2f1"), - TxHash: common.HexToHash("0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"), - ReceiptHash: common.HexToHash("0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"), - Difficulty: big.NewInt(167925187834220), - GasLimit: 4015682, - GasUsed: 0, - Time: 1488928920, - Extra: []byte("www.bw.com"), - MixDigest: common.HexToHash("0x3e140b0784516af5e5ec6730f2fb20cca22f32be399b9e4ad77d32541f798cd0"), - Nonce: types.EncodeNonce(0xf400cd0006070c49), - }) - // Simulate multiple processes sharing the same datadir - var pend sync.WaitGroup - - for i := 0; i < 3; i++ { - pend.Add(1) - go func(idx int) { - defer pend.Done() - - config := Config{ - CacheDir: cachedir, - CachesOnDisk: 1, - } - ethash := New(config, nil, false) - defer ethash.Close() - if err := ethash.verifySeal(nil, block.Header(), false); err != nil { - t.Errorf("proc %d: block verification failed: %v", idx, err) - } - }(i) - } - pend.Wait() -} - -// Benchmarks the cache generation performance. -func BenchmarkCacheGeneration(b *testing.B) { - for i := 0; i < b.N; i++ { - cache := make([]uint32, cacheSize(1)/4) - generateCache(cache, 0, make([]byte, 32)) - } -} - -// Benchmarks the dataset (small) generation performance. -func BenchmarkSmallDatasetGeneration(b *testing.B) { - cache := make([]uint32, 65536/4) - generateCache(cache, 0, make([]byte, 32)) - - b.ResetTimer() - for i := 0; i < b.N; i++ { - dataset := make([]uint32, 32*65536/4) - generateDataset(dataset, 0, cache) - } -} - -// Benchmarks the light verification performance. -func BenchmarkHashimotoLight(b *testing.B) { - cache := make([]uint32, cacheSize(1)/4) - generateCache(cache, 0, make([]byte, 32)) - - hash := hexutil.MustDecode("0xc9149cc0386e689d789a1c2f3d5d169a61a6218ed30e74414dc736e442ef3d1f") - - b.ResetTimer() - for i := 0; i < b.N; i++ { - hashimotoLight(datasetSize(1), cache, hash, 0) - } -} - -// Benchmarks the full (small) verification performance. -func BenchmarkHashimotoFullSmall(b *testing.B) { - cache := make([]uint32, 65536/4) - generateCache(cache, 0, make([]byte, 32)) - - dataset := make([]uint32, 32*65536/4) - generateDataset(dataset, 0, cache) - - hash := hexutil.MustDecode("0xc9149cc0386e689d789a1c2f3d5d169a61a6218ed30e74414dc736e442ef3d1f") - - b.ResetTimer() - for i := 0; i < b.N; i++ { - hashimotoFull(dataset, hash, 0) - } -} - -func benchmarkHashimotoFullMmap(b *testing.B, name string, lock bool) { - b.Run(name, func(b *testing.B) { - tmpdir, err := os.MkdirTemp("", "ethash-test") - if err != nil { - b.Fatal(err) - } - defer os.RemoveAll(tmpdir) - - d := &dataset{epoch: 0} - d.generate(tmpdir, 1, lock, false) - var hash [common.HashLength]byte - b.ResetTimer() - for i := 0; i < b.N; i++ { - binary.PutVarint(hash[:], int64(i)) - hashimotoFull(d.dataset, hash[:], 0) - } - }) -} - -// Benchmarks the full verification performance for mmap -func BenchmarkHashimotoFullMmap(b *testing.B) { - benchmarkHashimotoFullMmap(b, "WithLock", true) - benchmarkHashimotoFullMmap(b, "WithoutLock", false) -} diff --git a/consensus/ethash/api.go b/consensus/ethash/api.go deleted file mode 100644 index da3b0751b..000000000 --- a/consensus/ethash/api.go +++ /dev/null @@ -1,113 +0,0 @@ -// Copyright 2018 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package ethash - -import ( - "errors" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/core/types" -) - -var errEthashStopped = errors.New("ethash stopped") - -// API exposes ethash related methods for the RPC interface. -type API struct { - ethash *Ethash -} - -// GetWork returns a work package for external miner. -// -// The work package consists of 3 strings: -// -// result[0] - 32 bytes hex encoded current block header pow-hash -// result[1] - 32 bytes hex encoded seed hash used for DAG -// result[2] - 32 bytes hex encoded boundary condition ("target"), 2^256/difficulty -// result[3] - hex encoded block number -func (api *API) GetWork() ([4]string, error) { - if api.ethash.remote == nil { - return [4]string{}, errors.New("not supported") - } - - var ( - workCh = make(chan [4]string, 1) - errc = make(chan error, 1) - ) - select { - case api.ethash.remote.fetchWorkCh <- &sealWork{errc: errc, res: workCh}: - case <-api.ethash.remote.exitCh: - return [4]string{}, errEthashStopped - } - select { - case work := <-workCh: - return work, nil - case err := <-errc: - return [4]string{}, err - } -} - -// SubmitWork can be used by external miner to submit their POW solution. -// It returns an indication if the work was accepted. -// Note either an invalid solution, a stale work a non-existent work will return false. -func (api *API) SubmitWork(nonce types.BlockNonce, hash, digest common.Hash) bool { - if api.ethash.remote == nil { - return false - } - - var errc = make(chan error, 1) - select { - case api.ethash.remote.submitWorkCh <- &mineResult{ - nonce: nonce, - mixDigest: digest, - hash: hash, - errc: errc, - }: - case <-api.ethash.remote.exitCh: - return false - } - err := <-errc - return err == nil -} - -// SubmitHashrate can be used for remote miners to submit their hash rate. -// This enables the node to report the combined hash rate of all miners -// which submit work through this node. -// -// It accepts the miner hash rate and an identifier which must be unique -// between nodes. -func (api *API) SubmitHashrate(rate hexutil.Uint64, id common.Hash) bool { - if api.ethash.remote == nil { - return false - } - - var done = make(chan struct{}, 1) - select { - case api.ethash.remote.submitRateCh <- &hashrate{done: done, rate: uint64(rate), id: id}: - case <-api.ethash.remote.exitCh: - return false - } - - // Block until hash rate submitted successfully. - <-done - return true -} - -// GetHashrate returns the current hashrate for local CPU miner and remote miner. -func (api *API) GetHashrate() uint64 { - return uint64(api.ethash.Hashrate()) -} diff --git a/consensus/ethash/consensus.go b/consensus/ethash/consensus.go index 758013b07..5c61fc9ca 100644 --- a/consensus/ethash/consensus.go +++ b/consensus/ethash/consensus.go @@ -17,11 +17,9 @@ package ethash import ( - "bytes" "errors" "fmt" "math/big" - "runtime" "time" mapset "github.com/deckarep/golang-set" @@ -32,9 +30,7 @@ import ( "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/params" - "github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/trie" - "golang.org/x/crypto/sha3" ) // Ethash proof-of-work protocol constants. @@ -69,14 +65,11 @@ var ( // codebase, inherently breaking if the engine is swapped out. Please put common // error types into the consensus package. var ( - errOlderBlockTime = errors.New("timestamp older than parent") - errTooManyUncles = errors.New("too many uncles") - errDuplicateUncle = errors.New("duplicate uncle") - errUncleIsAncestor = errors.New("uncle is ancestor") - errDanglingUncle = errors.New("uncle's parent is not ancestor") - errInvalidDifficulty = errors.New("non-positive difficulty") - errInvalidMixDigest = errors.New("invalid mix digest") - errInvalidPoW = errors.New("invalid proof-of-work") + errOlderBlockTime = errors.New("timestamp older than parent") + errTooManyUncles = errors.New("too many uncles") + errDuplicateUncle = errors.New("duplicate uncle") + errUncleIsAncestor = errors.New("uncle is ancestor") + errDanglingUncle = errors.New("uncle's parent is not ancestor") ) // Author implements consensus.Engine, returning the header's coinbase as the @@ -87,9 +80,9 @@ func (ethash *Ethash) Author(header *types.Header) (common.Address, error) { // VerifyHeader checks whether a header conforms to the consensus rules of the // stock Ethereum ethash engine. -func (ethash *Ethash) VerifyHeader(chain consensus.ChainHeaderReader, header *types.Header, seal bool) error { +func (ethash *Ethash) VerifyHeader(chain consensus.ChainHeaderReader, header *types.Header) error { // If we're running a full engine faking, accept any input as valid - if ethash.config.PowMode == ModeFullFake { + if ethash.fakeFull { return nil } // Short circuit if the header is known, or its parent not @@ -102,93 +95,54 @@ func (ethash *Ethash) VerifyHeader(chain consensus.ChainHeaderReader, header *ty return consensus.ErrUnknownAncestor } // Sanity checks passed, do a proper verification - return ethash.verifyHeader(chain, header, parent, false, seal, time.Now().Unix()) + return ethash.verifyHeader(chain, header, parent, false, time.Now().Unix()) } // VerifyHeaders is similar to VerifyHeader, but verifies a batch of headers // concurrently. The method returns a quit channel to abort the operations and // a results channel to retrieve the async verifications. -func (ethash *Ethash) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*types.Header, seals []bool) (chan<- struct{}, <-chan error) { +func (ethash *Ethash) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*types.Header) (chan<- struct{}, <-chan error) { // If we're running a full engine faking, accept any input as valid - if ethash.config.PowMode == ModeFullFake || len(headers) == 0 { + if ethash.fakeFull || len(headers) == 0 { abort, results := make(chan struct{}), make(chan error, len(headers)) for i := 0; i < len(headers); i++ { results <- nil } return abort, results } + abort := make(chan struct{}) + results := make(chan error, len(headers)) + unixNow := time.Now().Unix() - // Spawn as many workers as allowed threads - workers := runtime.GOMAXPROCS(0) - if len(headers) < workers { - workers = len(headers) - } - - // Create a task channel and spawn the verifiers - var ( - inputs = make(chan int) - done = make(chan int, workers) - errors = make([]error, len(headers)) - abort = make(chan struct{}) - unixNow = time.Now().Unix() - ) - for i := 0; i < workers; i++ { - go func() { - for index := range inputs { - errors[index] = ethash.verifyHeaderWorker(chain, headers, seals, index, unixNow) - done <- index - } - }() - } - - errorsOut := make(chan error, len(headers)) go func() { - defer close(inputs) - var ( - in, out = 0, 0 - checked = make([]bool, len(headers)) - inputs = inputs - ) - for { + for i, header := range headers { + var parent *types.Header + if i == 0 { + parent = chain.GetHeader(headers[0].ParentHash, headers[0].Number.Uint64()-1) + } else if headers[i-1].Hash() == headers[i].ParentHash { + parent = headers[i-1] + } + var err error + if parent == nil { + err = consensus.ErrUnknownAncestor + } else { + err = ethash.verifyHeader(chain, header, parent, false, unixNow) + } select { - case inputs <- in: - if in++; in == len(headers) { - // Reached end of headers. Stop sending to workers. - inputs = nil - } - case index := <-done: - for checked[index] = true; checked[out]; out++ { - errorsOut <- errors[out] - if out == len(headers)-1 { - return - } - } case <-abort: return + case results <- err: } } }() - return abort, errorsOut -} - -func (ethash *Ethash) verifyHeaderWorker(chain consensus.ChainHeaderReader, headers []*types.Header, seals []bool, index int, unixNow int64) error { - var parent *types.Header - if index == 0 { - parent = chain.GetHeader(headers[0].ParentHash, headers[0].Number.Uint64()-1) - } else if headers[index-1].Hash() == headers[index].ParentHash { - parent = headers[index-1] - } - if parent == nil { - return consensus.ErrUnknownAncestor - } - return ethash.verifyHeader(chain, headers[index], parent, false, seals[index], unixNow) + return abort, results } // VerifyUncles verifies that the given block's uncles conform to the consensus // rules of the stock Ethereum ethash engine. func (ethash *Ethash) VerifyUncles(chain consensus.ChainReader, block *types.Block) error { // If we're running a full engine faking, accept any input as valid - if ethash.config.PowMode == ModeFullFake { + if ethash.fakeFull { return nil } // Verify that there are at most 2 uncles included in this block @@ -240,7 +194,7 @@ func (ethash *Ethash) VerifyUncles(chain consensus.ChainReader, block *types.Blo if ancestors[uncle.ParentHash] == nil || uncle.ParentHash == block.ParentHash() { return errDanglingUncle } - if err := ethash.verifyHeader(chain, uncle, ancestors[uncle.ParentHash], true, true, time.Now().Unix()); err != nil { + if err := ethash.verifyHeader(chain, uncle, ancestors[uncle.ParentHash], true, time.Now().Unix()); err != nil { return err } } @@ -250,7 +204,7 @@ func (ethash *Ethash) VerifyUncles(chain consensus.ChainReader, block *types.Blo // verifyHeader checks whether a header conforms to the consensus rules of the // stock Ethereum ethash engine. // See YP section 4.3.4. "Block Header Validity" -func (ethash *Ethash) verifyHeader(chain consensus.ChainHeaderReader, header, parent *types.Header, uncle bool, seal bool, unixNow int64) error { +func (ethash *Ethash) verifyHeader(chain consensus.ChainHeaderReader, header, parent *types.Header, uncle bool, unixNow int64) error { // Quorum: ethash consensus is only used in raft for Quorum, skip verifyHeader if chain != nil && chain.Config().IsQuorum { return nil @@ -298,11 +252,12 @@ func (ethash *Ethash) verifyHeader(chain consensus.ChainHeaderReader, header, pa if diff := new(big.Int).Sub(header.Number, parent.Number); diff.Cmp(big.NewInt(1)) != 0 { return consensus.ErrInvalidNumber } - // Verify the engine specific seal securing the block - if seal { - if err := ethash.verifySeal(chain, header, false); err != nil { - return err - } + // Add some fake checks for tests + if ethash.fakeDelay != nil { + time.Sleep(*ethash.fakeDelay) + } + if ethash.fakeFail != nil && *ethash.fakeFail == header.Number.Uint64() { + return errors.New("invalid tester pow") } // If all checks passed, validate any special fields for hard forks if err := misc.VerifyDAOHeaderExtraData(chain.Config(), header); err != nil { @@ -502,76 +457,6 @@ var FrontierDifficultyCalulator = calcDifficultyFrontier var HomesteadDifficultyCalulator = calcDifficultyHomestead var DynamicDifficultyCalculator = makeDifficultyCalculator -// verifySeal checks whether a block satisfies the PoW difficulty requirements, -// either using the usual ethash cache for it, or alternatively using a full DAG -// to make remote mining fast. -func (ethash *Ethash) verifySeal(chain consensus.ChainHeaderReader, header *types.Header, fulldag bool) error { - // Quorum: ethash consensus is only used in raft for Quorum, skip verifySeal - if chain != nil && chain.Config().IsQuorum { - return nil - } - // If we're running a fake PoW, accept any seal as valid - if ethash.config.PowMode == ModeFake || ethash.config.PowMode == ModeFullFake { - time.Sleep(ethash.fakeDelay) - if ethash.fakeFail == header.Number.Uint64() { - return errInvalidPoW - } - return nil - } - // If we're running a shared PoW, delegate verification to it - if ethash.shared != nil { - return ethash.shared.verifySeal(chain, header, fulldag) - } - // Ensure that we have a valid difficulty for the block - if header.Difficulty.Sign() <= 0 { - return errInvalidDifficulty - } - // Recompute the digest and PoW values - number := header.Number.Uint64() - - var ( - digest []byte - result []byte - ) - // If fast-but-heavy PoW verification was requested, use an ethash dataset - if fulldag { - dataset := ethash.dataset(number, true) - if dataset.generated() { - digest, result = hashimotoFull(dataset.dataset, ethash.SealHash(header).Bytes(), header.Nonce.Uint64()) - - // Datasets are unmapped in a finalizer. Ensure that the dataset stays alive - // until after the call to hashimotoFull so it's not unmapped while being used. - runtime.KeepAlive(dataset) - } else { - // Dataset not yet generated, don't hang, use a cache instead - fulldag = false - } - } - // If slow-but-light PoW verification was requested (or DAG not yet ready), use an ethash cache - if !fulldag { - cache := ethash.cache(number) - - size := datasetSize(number) - if ethash.config.PowMode == ModeTest { - size = 32 * 1024 - } - digest, result = hashimotoLight(size, cache.cache, ethash.SealHash(header).Bytes(), header.Nonce.Uint64()) - - // Caches are unmapped in a finalizer. Ensure that the cache stays alive - // until after the call to hashimotoLight so it's not unmapped while being used. - runtime.KeepAlive(cache) - } - // Verify the calculated values against the ones provided in the header - if !bytes.Equal(header.MixDigest[:], digest) { - return errInvalidMixDigest - } - target := new(big.Int).Div(two256, header.Difficulty) - if new(big.Int).SetBytes(result).Cmp(target) > 0 { - return errInvalidPoW - } - return nil -} - // Prepare implements consensus.Engine, initializing the difficulty field of a // header to conform to the ethash protocol. The changes are done inline. func (ethash *Ethash) Prepare(chain consensus.ChainHeaderReader, header *types.Header) error { @@ -601,29 +486,6 @@ func (ethash *Ethash) FinalizeAndAssemble(chain consensus.ChainHeaderReader, hea return types.NewBlock(header, txs, uncles, receipts, trie.NewStackTrie(nil)), nil } -// SealHash returns the hash of a block prior to it being sealed. -func (ethash *Ethash) SealHash(header *types.Header) (hash common.Hash) { - hasher := sha3.NewLegacyKeccak256() - - rlp.Encode(hasher, []interface{}{ - header.ParentHash, - header.UncleHash, - header.Coinbase, - header.Root, - header.TxHash, - header.ReceiptHash, - header.Bloom, - header.Difficulty, - header.Number, - header.GasLimit, - header.GasUsed, - header.Time, - header.Extra, - }) - hasher.Sum(hash[:0]) - return hash -} - // Some weird constants to avoid constant memory allocs for them. var ( big8 = big.NewInt(8) diff --git a/consensus/ethash/ethash.go b/consensus/ethash/ethash.go index 0922c2586..88004c9b3 100644 --- a/consensus/ethash/ethash.go +++ b/consensus/ethash/ethash.go @@ -18,487 +18,27 @@ package ethash import ( - "errors" - "fmt" - "math" - "math/big" - "math/rand" - "os" - "path/filepath" - "reflect" - "runtime" - "strconv" - "sync" - "sync/atomic" "time" - "unsafe" - "github.com/edsrzf/mmap-go" + "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/consensus" - "github.com/ethereum/go-ethereum/log" - "github.com/ethereum/go-ethereum/metrics" + "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/rpc" - "github.com/hashicorp/golang-lru/simplelru" ) -var ErrInvalidDumpMagic = errors.New("invalid dump magic") - -var ( - // two256 is a big integer representing 2^256 - two256 = new(big.Int).Exp(big.NewInt(2), big.NewInt(256), big.NewInt(0)) - - // sharedEthash is a full instance that can be shared between multiple users. - sharedEthash *Ethash - - // algorithmRevision is the data structure version used for file naming. - algorithmRevision = 23 - - // dumpMagic is a dataset dump header to sanity check a data dump. - dumpMagic = []uint32{0xbaddcafe, 0xfee1dead} -) - -func init() { - sharedConfig := Config{ - PowMode: ModeNormal, - CachesInMem: 3, - DatasetsInMem: 1, - } - sharedEthash = New(sharedConfig, nil, false) -} - -// isLittleEndian returns whether the local system is running in little or big -// endian byte order. -func isLittleEndian() bool { - n := uint32(0x01020304) - return *(*byte)(unsafe.Pointer(&n)) == 0x04 -} - -// memoryMap tries to memory map a file of uint32s for read only access. -func memoryMap(path string, lock bool) (*os.File, mmap.MMap, []uint32, error) { - file, err := os.OpenFile(path, os.O_RDONLY, 0644) - if err != nil { - return nil, nil, nil, err - } - mem, buffer, err := memoryMapFile(file, false) - if err != nil { - file.Close() - return nil, nil, nil, err - } - for i, magic := range dumpMagic { - if buffer[i] != magic { - mem.Unmap() - file.Close() - return nil, nil, nil, ErrInvalidDumpMagic - } - } - if lock { - if err := mem.Lock(); err != nil { - mem.Unmap() - file.Close() - return nil, nil, nil, err - } - } - return file, mem, buffer[len(dumpMagic):], err -} - -// memoryMapFile tries to memory map an already opened file descriptor. -func memoryMapFile(file *os.File, write bool) (mmap.MMap, []uint32, error) { - // Try to memory map the file - flag := mmap.RDONLY - if write { - flag = mmap.RDWR - } - mem, err := mmap.Map(file, flag, 0) - if err != nil { - return nil, nil, err - } - // The file is now memory-mapped. Create a []uint32 view of the file. - var view []uint32 - header := (*reflect.SliceHeader)(unsafe.Pointer(&view)) - header.Data = (*reflect.SliceHeader)(unsafe.Pointer(&mem)).Data - header.Cap = len(mem) / 4 - header.Len = header.Cap - return mem, view, nil -} - -// memoryMapAndGenerate tries to memory map a temporary file of uint32s for write -// access, fill it with the data from a generator and then move it into the final -// path requested. -func memoryMapAndGenerate(path string, size uint64, lock bool, generator func(buffer []uint32)) (*os.File, mmap.MMap, []uint32, error) { - // Ensure the data folder exists - if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil { - return nil, nil, nil, err - } - // Create a huge temporary empty file to fill with data - temp := path + "." + strconv.Itoa(rand.Int()) - - dump, err := os.Create(temp) - if err != nil { - return nil, nil, nil, err - } - if err = dump.Truncate(int64(len(dumpMagic))*4 + int64(size)); err != nil { - return nil, nil, nil, err - } - // Memory map the file for writing and fill it with the generator - mem, buffer, err := memoryMapFile(dump, true) - if err != nil { - dump.Close() - return nil, nil, nil, err - } - copy(buffer, dumpMagic) - - data := buffer[len(dumpMagic):] - generator(data) - - if err := mem.Unmap(); err != nil { - return nil, nil, nil, err - } - if err := dump.Close(); err != nil { - return nil, nil, nil, err - } - if err := os.Rename(temp, path); err != nil { - return nil, nil, nil, err - } - return memoryMap(path, lock) -} - -// lru tracks caches or datasets by their last use time, keeping at most N of them. -type lru struct { - what string - new func(epoch uint64) interface{} - mu sync.Mutex - // Items are kept in a LRU cache, but there is a special case: - // We always keep an item for (highest seen epoch) + 1 as the 'future item'. - cache *simplelru.LRU - future uint64 - futureItem interface{} -} - -// newlru create a new least-recently-used cache for either the verification caches -// or the mining datasets. -func newlru(what string, maxItems int, new func(epoch uint64) interface{}) *lru { - if maxItems <= 0 { - maxItems = 1 - } - cache, _ := simplelru.NewLRU(maxItems, func(key, value interface{}) { - log.Trace("Evicted ethash "+what, "epoch", key) - }) - return &lru{what: what, new: new, cache: cache} -} - -// get retrieves or creates an item for the given epoch. The first return value is always -// non-nil. The second return value is non-nil if lru thinks that an item will be useful in -// the near future. -func (lru *lru) get(epoch uint64) (item, future interface{}) { - lru.mu.Lock() - defer lru.mu.Unlock() - - // Get or create the item for the requested epoch. - item, ok := lru.cache.Get(epoch) - if !ok { - if lru.future > 0 && lru.future == epoch { - item = lru.futureItem - } else { - log.Trace("Requiring new ethash "+lru.what, "epoch", epoch) - item = lru.new(epoch) - } - lru.cache.Add(epoch, item) - } - // Update the 'future item' if epoch is larger than previously seen. - if epoch < maxEpoch-1 && lru.future < epoch+1 { - log.Trace("Requiring new future ethash "+lru.what, "epoch", epoch+1) - future = lru.new(epoch + 1) - lru.future = epoch + 1 - lru.futureItem = future - } - return item, future -} - -// cache wraps an ethash cache with some metadata to allow easier concurrent use. -type cache struct { - epoch uint64 // Epoch for which this cache is relevant - dump *os.File // File descriptor of the memory mapped cache - mmap mmap.MMap // Memory map itself to unmap before releasing - cache []uint32 // The actual cache data content (may be memory mapped) - once sync.Once // Ensures the cache is generated only once -} - -// newCache creates a new ethash verification cache and returns it as a plain Go -// interface to be usable in an LRU cache. -func newCache(epoch uint64) interface{} { - return &cache{epoch: epoch} -} - -// generate ensures that the cache content is generated before use. -func (c *cache) generate(dir string, limit int, lock bool, test bool) { - c.once.Do(func() { - size := cacheSize(c.epoch*epochLength + 1) - seed := seedHash(c.epoch*epochLength + 1) - if test { - size = 1024 - } - // If we don't store anything on disk, generate and return. - if dir == "" { - c.cache = make([]uint32, size/4) - generateCache(c.cache, c.epoch, seed) - return - } - // Disk storage is needed, this will get fancy - var endian string - if !isLittleEndian() { - endian = ".be" - } - path := filepath.Join(dir, fmt.Sprintf("cache-R%d-%x%s", algorithmRevision, seed[:8], endian)) - logger := log.New("epoch", c.epoch) - - // We're about to mmap the file, ensure that the mapping is cleaned up when the - // cache becomes unused. - runtime.SetFinalizer(c, (*cache).finalizer) - - // Try to load the file from disk and memory map it - var err error - c.dump, c.mmap, c.cache, err = memoryMap(path, lock) - if err == nil { - logger.Debug("Loaded old ethash cache from disk") - return - } - logger.Debug("Failed to load old ethash cache", "err", err) - - // No previous cache available, create a new cache file to fill - c.dump, c.mmap, c.cache, err = memoryMapAndGenerate(path, size, lock, func(buffer []uint32) { generateCache(buffer, c.epoch, seed) }) - if err != nil { - logger.Error("Failed to generate mapped ethash cache", "err", err) - - c.cache = make([]uint32, size/4) - generateCache(c.cache, c.epoch, seed) - } - // Iterate over all previous instances and delete old ones - for ep := int(c.epoch) - limit; ep >= 0; ep-- { - seed := seedHash(uint64(ep)*epochLength + 1) - path := filepath.Join(dir, fmt.Sprintf("cache-R%d-%x%s", algorithmRevision, seed[:8], endian)) - os.Remove(path) - } - }) -} - -// finalizer unmaps the memory and closes the file. -func (c *cache) finalizer() { - if c.mmap != nil { - c.mmap.Unmap() - c.dump.Close() - c.mmap, c.dump = nil, nil - } -} - -// dataset wraps an ethash dataset with some metadata to allow easier concurrent use. -type dataset struct { - epoch uint64 // Epoch for which this cache is relevant - dump *os.File // File descriptor of the memory mapped cache - mmap mmap.MMap // Memory map itself to unmap before releasing - dataset []uint32 // The actual cache data content - once sync.Once // Ensures the cache is generated only once - done uint32 // Atomic flag to determine generation status -} - -// newDataset creates a new ethash mining dataset and returns it as a plain Go -// interface to be usable in an LRU cache. -func newDataset(epoch uint64) interface{} { - return &dataset{epoch: epoch} -} - -// generate ensures that the dataset content is generated before use. -func (d *dataset) generate(dir string, limit int, lock bool, test bool) { - d.once.Do(func() { - // Mark the dataset generated after we're done. This is needed for remote - defer atomic.StoreUint32(&d.done, 1) - - csize := cacheSize(d.epoch*epochLength + 1) - dsize := datasetSize(d.epoch*epochLength + 1) - seed := seedHash(d.epoch*epochLength + 1) - if test { - csize = 1024 - dsize = 32 * 1024 - } - // If we don't store anything on disk, generate and return - if dir == "" { - cache := make([]uint32, csize/4) - generateCache(cache, d.epoch, seed) - - d.dataset = make([]uint32, dsize/4) - generateDataset(d.dataset, d.epoch, cache) - - return - } - // Disk storage is needed, this will get fancy - var endian string - if !isLittleEndian() { - endian = ".be" - } - path := filepath.Join(dir, fmt.Sprintf("full-R%d-%x%s", algorithmRevision, seed[:8], endian)) - logger := log.New("epoch", d.epoch) - - // We're about to mmap the file, ensure that the mapping is cleaned up when the - // cache becomes unused. - runtime.SetFinalizer(d, (*dataset).finalizer) - - // Try to load the file from disk and memory map it - var err error - d.dump, d.mmap, d.dataset, err = memoryMap(path, lock) - if err == nil { - logger.Debug("Loaded old ethash dataset from disk") - return - } - logger.Debug("Failed to load old ethash dataset", "err", err) - - // No previous dataset available, create a new dataset file to fill - cache := make([]uint32, csize/4) - generateCache(cache, d.epoch, seed) - - d.dump, d.mmap, d.dataset, err = memoryMapAndGenerate(path, dsize, lock, func(buffer []uint32) { generateDataset(buffer, d.epoch, cache) }) - if err != nil { - logger.Error("Failed to generate mapped ethash dataset", "err", err) - - d.dataset = make([]uint32, dsize/2) - generateDataset(d.dataset, d.epoch, cache) - } - // Iterate over all previous instances and delete old ones - for ep := int(d.epoch) - limit; ep >= 0; ep-- { - seed := seedHash(uint64(ep)*epochLength + 1) - path := filepath.Join(dir, fmt.Sprintf("full-R%d-%x%s", algorithmRevision, seed[:8], endian)) - os.Remove(path) - } - }) -} - -// generated returns whether this particular dataset finished generating already -// or not (it may not have been started at all). This is useful for remote miners -// to default to verification caches instead of blocking on DAG generations. -func (d *dataset) generated() bool { - return atomic.LoadUint32(&d.done) == 1 -} - -// finalizer closes any file handlers and memory maps open. -func (d *dataset) finalizer() { - if d.mmap != nil { - d.mmap.Unmap() - d.dump.Close() - d.mmap, d.dump = nil, nil - } -} - -// MakeCache generates a new ethash cache and optionally stores it to disk. -func MakeCache(block uint64, dir string) { - c := cache{epoch: block / epochLength} - c.generate(dir, math.MaxInt32, false, false) -} - -// MakeDataset generates a new ethash dataset and optionally stores it to disk. -func MakeDataset(block uint64, dir string) { - d := dataset{epoch: block / epochLength} - d.generate(dir, math.MaxInt32, false, false) -} - -// Mode defines the type and amount of PoW verification an ethash engine makes. -type Mode uint - -const ( - ModeNormal Mode = iota - ModeShared - ModeTest - ModeFake - ModeFullFake -) - -// Config are the configuration parameters of the ethash. -type Config struct { - CacheDir string - CachesInMem int - CachesOnDisk int - CachesLockMmap bool - DatasetDir string - DatasetsInMem int - DatasetsOnDisk int - DatasetsLockMmap bool - PowMode Mode - - // When set, notifications sent by the remote sealer will - // be block header JSON objects instead of work package arrays. - NotifyFull bool - - Log log.Logger `toml:"-"` -} - // Ethash is a consensus engine based on proof-of-work implementing the ethash // algorithm. type Ethash struct { - config Config - - caches *lru // In memory caches to avoid regenerating too often - datasets *lru // In memory datasets to avoid regenerating too often - - // Mining related fields - rand *rand.Rand // Properly seeded random source for nonces - threads int // Number of threads to mine on if mining - update chan struct{} // Notification channel to update mining parameters - hashrate metrics.Meter // Meter tracking the average hashrate - remote *remoteSealer - - // The fields below are hooks for testing - shared *Ethash // Shared PoW verifier to avoid cache regeneration - fakeFail uint64 // Block number which fails PoW check even in fake mode - fakeDelay time.Duration // Time delay to sleep for before returning from verify - - lock sync.Mutex // Ensures thread safety for the in-memory caches and mining fields - closeOnce sync.Once // Ensures exit channel will not be closed twice. + fakeFail *uint64 // Block number which fails PoW check even in fake mode + fakeDelay *time.Duration // Time delay to sleep for before returning from verify + fakeFull bool // Accepts everything as valid } -// New creates a full sized ethash PoW scheme and starts a background thread for -// remote mining, also optionally notifying a batch of remote services of new work -// packages. -func New(config Config, notify []string, noverify bool) *Ethash { - if config.Log == nil { - config.Log = log.Root() - } - if config.CachesInMem <= 0 { - config.Log.Warn("One ethash cache must always be in memory", "requested", config.CachesInMem) - config.CachesInMem = 1 - } - if config.CacheDir != "" && config.CachesOnDisk > 0 { - config.Log.Info("Disk storage enabled for ethash caches", "dir", config.CacheDir, "count", config.CachesOnDisk) - } - if config.DatasetDir != "" && config.DatasetsOnDisk > 0 { - config.Log.Info("Disk storage enabled for ethash DAGs", "dir", config.DatasetDir, "count", config.DatasetsOnDisk) - } - ethash := &Ethash{ - config: config, - caches: newlru("cache", config.CachesInMem, newCache), - datasets: newlru("dataset", config.DatasetsInMem, newDataset), - update: make(chan struct{}), - hashrate: metrics.NewMeterForced(), - } - if config.PowMode == ModeShared { - ethash.shared = sharedEthash - } - ethash.remote = startRemoteSealer(ethash, notify, noverify) - return ethash -} - -// NewTester creates a small sized ethash PoW scheme useful only for testing -// purposes. -func NewTester(notify []string, noverify bool) *Ethash { - return New(Config{PowMode: ModeTest}, notify, noverify) -} - -// NewFaker creates a ethash consensus engine with a fake PoW scheme that accepts +// NewFaker creates an ethash consensus engine with a fake PoW scheme that accepts // all blocks' seal as valid, though they still have to conform to the Ethereum // consensus rules. func NewFaker() *Ethash { - return &Ethash{ - config: Config{ - PowMode: ModeFake, - Log: log.Root(), - }, - } + return new(Ethash) } // NewFakeFailer creates a ethash consensus engine with a fake PoW scheme that @@ -506,11 +46,7 @@ func NewFaker() *Ethash { // still have to conform to the Ethereum consensus rules. func NewFakeFailer(fail uint64) *Ethash { return &Ethash{ - config: Config{ - PowMode: ModeFake, - Log: log.Root(), - }, - fakeFail: fail, + fakeFail: &fail, } } @@ -519,11 +55,7 @@ func NewFakeFailer(fail uint64) *Ethash { // they still have to conform to the Ethereum consensus rules. func NewFakeDelayer(delay time.Duration) *Ethash { return &Ethash{ - config: Config{ - PowMode: ModeFake, - Log: log.Root(), - }, - fakeDelay: delay, + fakeDelay: &delay, } } @@ -531,168 +63,34 @@ func NewFakeDelayer(delay time.Duration) *Ethash { // accepts all blocks as valid, without checking any consensus rules whatsoever. func NewFullFaker() *Ethash { return &Ethash{ - config: Config{ - PowMode: ModeFullFake, - Log: log.Root(), - }, + fakeFull: true, } } -// NewShared creates a full sized ethash PoW shared between all requesters running -// in the same process. -func NewShared() *Ethash { - return &Ethash{shared: sharedEthash} -} - // Close closes the exit channel to notify all backend threads exiting. func (ethash *Ethash) Close() error { - ethash.closeOnce.Do(func() { - // Short circuit if the exit channel is not allocated. - if ethash.remote == nil { - return - } - close(ethash.remote.requestExit) - <-ethash.remote.exitCh - }) return nil } -// cache tries to retrieve a verification cache for the specified block number -// by first checking against a list of in-memory caches, then against caches -// stored on disk, and finally generating one if none can be found. -func (ethash *Ethash) cache(block uint64) *cache { - epoch := block / epochLength - currentI, futureI := ethash.caches.get(epoch) - current := currentI.(*cache) - - // Wait for generation finish. - current.generate(ethash.config.CacheDir, ethash.config.CachesOnDisk, ethash.config.CachesLockMmap, ethash.config.PowMode == ModeTest) - - // If we need a new future cache, now's a good time to regenerate it. - if futureI != nil { - future := futureI.(*cache) - go future.generate(ethash.config.CacheDir, ethash.config.CachesOnDisk, ethash.config.CachesLockMmap, ethash.config.PowMode == ModeTest) - } - return current -} - -// dataset tries to retrieve a mining dataset for the specified block number -// by first checking against a list of in-memory datasets, then against DAGs -// stored on disk, and finally generating one if none can be found. -// -// If async is specified, not only the future but the current DAG is also -// generates on a background thread. -func (ethash *Ethash) dataset(block uint64, async bool) *dataset { - // Retrieve the requested ethash dataset - epoch := block / epochLength - currentI, futureI := ethash.datasets.get(epoch) - current := currentI.(*dataset) - - // If async is specified, generate everything in a background thread - if async && !current.generated() { - go func() { - current.generate(ethash.config.DatasetDir, ethash.config.DatasetsOnDisk, ethash.config.DatasetsLockMmap, ethash.config.PowMode == ModeTest) - - if futureI != nil { - future := futureI.(*dataset) - future.generate(ethash.config.DatasetDir, ethash.config.DatasetsOnDisk, ethash.config.DatasetsLockMmap, ethash.config.PowMode == ModeTest) - } - }() - } else { - // Either blocking generation was requested, or already done - current.generate(ethash.config.DatasetDir, ethash.config.DatasetsOnDisk, ethash.config.DatasetsLockMmap, ethash.config.PowMode == ModeTest) - - if futureI != nil { - future := futureI.(*dataset) - go future.generate(ethash.config.DatasetDir, ethash.config.DatasetsOnDisk, ethash.config.DatasetsLockMmap, ethash.config.PowMode == ModeTest) - } - } - return current -} - -// Threads returns the number of mining threads currently enabled. This doesn't -// necessarily mean that mining is running! -func (ethash *Ethash) Threads() int { - ethash.lock.Lock() - defer ethash.lock.Unlock() - - return ethash.threads -} - -// SetThreads updates the number of mining threads currently enabled. Calling -// this method does not start mining, only sets the thread count. If zero is -// specified, the miner will use all cores of the machine. Setting a thread -// count below zero is allowed and will cause the miner to idle, without any -// work being done. -func (ethash *Ethash) SetThreads(threads int) { - ethash.lock.Lock() - defer ethash.lock.Unlock() - - // If we're running a shared PoW, set the thread count on that instead - if ethash.shared != nil { - ethash.shared.SetThreads(threads) - return - } - // Update the threads and ping any running seal to pull in any changes - ethash.threads = threads - select { - case ethash.update <- struct{}{}: - default: - } -} - -// Hashrate implements PoW, returning the measured rate of the search invocations -// per second over the last minute. -// Note the returned hashrate includes local hashrate, but also includes the total -// hashrate of all remote miner. -func (ethash *Ethash) Hashrate() float64 { - if ethash.hashrate == nil { - return 0 - } - // Short circuit if we are run the ethash in normal/test mode. - if ethash.config.PowMode != ModeNormal && ethash.config.PowMode != ModeTest { - return ethash.hashrate.Rate1() - } - var res = make(chan uint64, 1) - - select { - case ethash.remote.fetchRateCh <- res: - case <-ethash.remote.exitCh: - // Return local hashrate only if ethash is stopped. - return ethash.hashrate.Rate1() - } - - // Gather total submitted hash rate of remote sealers. - return ethash.hashrate.Rate1() + float64(<-res) -} - -// APIs implements consensus.Engine, returning the user facing RPC APIs. +// APIs implements consensus.Engine, returning no APIs as ethash is an empty +// shell in the post-merge world. func (ethash *Ethash) APIs(chain consensus.ChainHeaderReader) []rpc.API { - // In order to ensure backward compatibility, we exposes ethash RPC APIs - // to both eth and ethash namespaces. - return []rpc.API{ - { - Namespace: "eth", - Version: "1.0", - Service: &API{ethash}, - Public: true, - }, - { - Namespace: "ethash", - Version: "1.0", - Service: &API{ethash}, - Public: true, - }, - } + return []rpc.API{} } -// SeedHash is the seed to use for generating a verification cache and the mining -// dataset. -func SeedHash(block uint64) []byte { - return seedHash(block) +// Seal generates a new sealing request for the given input block and pushes +// the result into the given channel. For the ethash engine, this method will +// just panic as sealing is not supported anymore. +func (ethash *Ethash) Seal(chain consensus.ChainHeaderReader, block *types.Block, results chan<- *types.Block, stop <-chan struct{}) error { + panic("ethash (pow) sealing not supported any more") } // Protocol implements consensus.Engine.Protocol func (ethash *Ethash) Protocol() consensus.Protocol { return consensus.EthProtocol } + +// SealHash implements consensus.Engine. +func (ethash *Ethash) SealHash(header *types.Header) common.Hash { + panic("unimplemented") +} diff --git a/consensus/ethash/ethash_test.go b/consensus/ethash/ethash_test.go deleted file mode 100644 index d1e193932..000000000 --- a/consensus/ethash/ethash_test.go +++ /dev/null @@ -1,175 +0,0 @@ -// Copyright 2017 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package ethash - -import ( - "math/big" - "math/rand" - "os" - "sync" - "testing" - "time" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/core/types" -) - -// Tests that ethash works correctly in test mode. -func TestTestMode(t *testing.T) { - header := &types.Header{Number: big.NewInt(1), Difficulty: big.NewInt(100)} - - ethash := NewTester(nil, false) - defer ethash.Close() - - results := make(chan *types.Block) - err := ethash.Seal(nil, types.NewBlockWithHeader(header), results, nil) - if err != nil { - t.Fatalf("failed to seal block: %v", err) - } - select { - case block := <-results: - header.Nonce = types.EncodeNonce(block.Nonce()) - header.MixDigest = block.MixDigest() - if err := ethash.verifySeal(nil, header, false); err != nil { - t.Fatalf("unexpected verification error: %v", err) - } - case <-time.NewTimer(4 * time.Second).C: - t.Error("sealing result timeout") - } -} - -// This test checks that cache lru logic doesn't crash under load. -// It reproduces https://github.com/ethereum/go-ethereum/issues/14943 -func TestCacheFileEvict(t *testing.T) { - tmpdir, err := os.MkdirTemp("", "ethash-test") - if err != nil { - t.Fatal(err) - } - defer os.RemoveAll(tmpdir) - - config := Config{ - CachesInMem: 3, - CachesOnDisk: 10, - CacheDir: tmpdir, - PowMode: ModeTest, - } - e := New(config, nil, false) - defer e.Close() - - workers := 8 - epochs := 100 - var wg sync.WaitGroup - wg.Add(workers) - for i := 0; i < workers; i++ { - go verifyTest(&wg, e, i, epochs) - } - wg.Wait() -} - -func verifyTest(wg *sync.WaitGroup, e *Ethash, workerIndex, epochs int) { - defer wg.Done() - - const wiggle = 4 * epochLength - r := rand.New(rand.NewSource(int64(workerIndex))) - for epoch := 0; epoch < epochs; epoch++ { - block := int64(epoch)*epochLength - wiggle/2 + r.Int63n(wiggle) - if block < 0 { - block = 0 - } - header := &types.Header{Number: big.NewInt(block), Difficulty: big.NewInt(100)} - e.verifySeal(nil, header, false) - } -} - -func TestRemoteSealer(t *testing.T) { - ethash := NewTester(nil, false) - defer ethash.Close() - - api := &API{ethash} - if _, err := api.GetWork(); err != errNoMiningWork { - t.Error("expect to return an error indicate there is no mining work") - } - header := &types.Header{Number: big.NewInt(1), Difficulty: big.NewInt(100)} - block := types.NewBlockWithHeader(header) - sealhash := ethash.SealHash(header) - - // Push new work. - results := make(chan *types.Block) - ethash.Seal(nil, block, results, nil) - - var ( - work [4]string - err error - ) - if work, err = api.GetWork(); err != nil || work[0] != sealhash.Hex() { - t.Error("expect to return a mining work has same hash") - } - - if res := api.SubmitWork(types.BlockNonce{}, sealhash, common.Hash{}); res { - t.Error("expect to return false when submit a fake solution") - } - // Push new block with same block number to replace the original one. - header = &types.Header{Number: big.NewInt(1), Difficulty: big.NewInt(1000)} - block = types.NewBlockWithHeader(header) - sealhash = ethash.SealHash(header) - ethash.Seal(nil, block, results, nil) - - if work, err = api.GetWork(); err != nil || work[0] != sealhash.Hex() { - t.Error("expect to return the latest pushed work") - } -} - -func TestHashrate(t *testing.T) { - var ( - hashrate = []hexutil.Uint64{100, 200, 300} - expect uint64 - ids = []common.Hash{common.HexToHash("a"), common.HexToHash("b"), common.HexToHash("c")} - ) - ethash := NewTester(nil, false) - defer ethash.Close() - - if tot := ethash.Hashrate(); tot != 0 { - t.Error("expect the result should be zero") - } - - api := &API{ethash} - for i := 0; i < len(hashrate); i += 1 { - if res := api.SubmitHashrate(hashrate[i], ids[i]); !res { - t.Error("remote miner submit hashrate failed") - } - expect += uint64(hashrate[i]) - } - if tot := ethash.Hashrate(); tot != float64(expect) { - t.Error("expect total hashrate should be same") - } -} - -func TestClosedRemoteSealer(t *testing.T) { - ethash := NewTester(nil, false) - time.Sleep(1 * time.Second) // ensure exit channel is listening - ethash.Close() - - api := &API{ethash} - if _, err := api.GetWork(); err != errEthashStopped { - t.Error("expect to return an error to indicate ethash is stopped") - } - - if res := api.SubmitHashrate(hexutil.Uint64(100), common.HexToHash("a")); res { - t.Error("expect to return false when submit hashrate to a stopped ethash") - } -} diff --git a/consensus/ethash/sealer.go b/consensus/ethash/sealer.go deleted file mode 100644 index 08f5303fa..000000000 --- a/consensus/ethash/sealer.go +++ /dev/null @@ -1,450 +0,0 @@ -// Copyright 2017 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package ethash - -import ( - "bytes" - "context" - crand "crypto/rand" - "encoding/json" - "errors" - "math" - "math/big" - "math/rand" - "net/http" - "runtime" - "sync" - "time" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/consensus" - "github.com/ethereum/go-ethereum/core/types" -) - -const ( - // staleThreshold is the maximum depth of the acceptable stale but valid ethash solution. - staleThreshold = 7 -) - -var ( - errNoMiningWork = errors.New("no mining work available yet") - errInvalidSealResult = errors.New("invalid or stale proof-of-work solution") -) - -// Seal implements consensus.Engine, attempting to find a nonce that satisfies -// the block's difficulty requirements. -func (ethash *Ethash) Seal(chain consensus.ChainHeaderReader, block *types.Block, results chan<- *types.Block, stop <-chan struct{}) error { - // If we're running a fake PoW, simply return a 0 nonce immediately - if ethash.config.PowMode == ModeFake || ethash.config.PowMode == ModeFullFake { - header := block.Header() - header.Nonce, header.MixDigest = types.BlockNonce{}, common.Hash{} - select { - case results <- block.WithSeal(header): - default: - ethash.config.Log.Warn("Sealing result is not read by miner", "mode", "fake", "sealhash", ethash.SealHash(block.Header())) - } - return nil - } - // If we're running a shared PoW, delegate sealing to it - if ethash.shared != nil { - return ethash.shared.Seal(chain, block, results, stop) - } - // Create a runner and the multiple search threads it directs - abort := make(chan struct{}) - - ethash.lock.Lock() - threads := ethash.threads - if ethash.rand == nil { - seed, err := crand.Int(crand.Reader, big.NewInt(math.MaxInt64)) - if err != nil { - ethash.lock.Unlock() - return err - } - ethash.rand = rand.New(rand.NewSource(seed.Int64())) - } - ethash.lock.Unlock() - if threads == 0 { - threads = runtime.NumCPU() - } - if threads < 0 { - threads = 0 // Allows disabling local mining without extra logic around local/remote - } - // Push new work to remote sealer - if ethash.remote != nil { - ethash.remote.workCh <- &sealTask{block: block, results: results} - } - var ( - pend sync.WaitGroup - locals = make(chan *types.Block) - ) - for i := 0; i < threads; i++ { - pend.Add(1) - go func(id int, nonce uint64) { - defer pend.Done() - ethash.mine(block, id, nonce, abort, locals) - }(i, uint64(ethash.rand.Int63())) - } - // Wait until sealing is terminated or a nonce is found - go func() { - var result *types.Block - select { - case <-stop: - // Outside abort, stop all miner threads - close(abort) - case result = <-locals: - // One of the threads found a block, abort all others - select { - case results <- result: - default: - ethash.config.Log.Warn("Sealing result is not read by miner", "mode", "local", "sealhash", ethash.SealHash(block.Header())) - } - close(abort) - case <-ethash.update: - // Thread count was changed on user request, restart - close(abort) - if err := ethash.Seal(chain, block, results, stop); err != nil { - ethash.config.Log.Error("Failed to restart sealing after update", "err", err) - } - } - // Wait for all miners to terminate and return the block - pend.Wait() - }() - return nil -} - -// mine is the actual proof-of-work miner that searches for a nonce starting from -// seed that results in correct final block difficulty. -func (ethash *Ethash) mine(block *types.Block, id int, seed uint64, abort chan struct{}, found chan *types.Block) { - // Extract some data from the header - var ( - header = block.Header() - hash = ethash.SealHash(header).Bytes() - target = new(big.Int).Div(two256, header.Difficulty) - number = header.Number.Uint64() - dataset = ethash.dataset(number, false) - ) - // Start generating random nonces until we abort or find a good one - var ( - attempts = int64(0) - nonce = seed - ) - logger := ethash.config.Log.New("miner", id) - logger.Trace("Started ethash search for new nonces", "seed", seed) -search: - for { - select { - case <-abort: - // Mining terminated, update stats and abort - logger.Trace("Ethash nonce search aborted", "attempts", nonce-seed) - ethash.hashrate.Mark(attempts) - break search - - default: - // We don't have to update hash rate on every nonce, so update after after 2^X nonces - attempts++ - if (attempts % (1 << 15)) == 0 { - ethash.hashrate.Mark(attempts) - attempts = 0 - } - // Compute the PoW value of this nonce - digest, result := hashimotoFull(dataset.dataset, hash, nonce) - if new(big.Int).SetBytes(result).Cmp(target) <= 0 { - // Correct nonce found, create a new header with it - header = types.CopyHeader(header) - header.Nonce = types.EncodeNonce(nonce) - header.MixDigest = common.BytesToHash(digest) - - // Seal and return a block (if still needed) - select { - case found <- block.WithSeal(header): - logger.Trace("Ethash nonce found and reported", "attempts", nonce-seed, "nonce", nonce) - case <-abort: - logger.Trace("Ethash nonce found but discarded", "attempts", nonce-seed, "nonce", nonce) - } - break search - } - nonce++ - } - } - // Datasets are unmapped in a finalizer. Ensure that the dataset stays live - // during sealing so it's not unmapped while being read. - runtime.KeepAlive(dataset) -} - -// This is the timeout for HTTP requests to notify external miners. -const remoteSealerTimeout = 1 * time.Second - -type remoteSealer struct { - works map[common.Hash]*types.Block - rates map[common.Hash]hashrate - currentBlock *types.Block - currentWork [4]string - notifyCtx context.Context - cancelNotify context.CancelFunc // cancels all notification requests - reqWG sync.WaitGroup // tracks notification request goroutines - - ethash *Ethash - noverify bool - notifyURLs []string - results chan<- *types.Block - workCh chan *sealTask // Notification channel to push new work and relative result channel to remote sealer - fetchWorkCh chan *sealWork // Channel used for remote sealer to fetch mining work - submitWorkCh chan *mineResult // Channel used for remote sealer to submit their mining result - fetchRateCh chan chan uint64 // Channel used to gather submitted hash rate for local or remote sealer. - submitRateCh chan *hashrate // Channel used for remote sealer to submit their mining hashrate - requestExit chan struct{} - exitCh chan struct{} -} - -// sealTask wraps a seal block with relative result channel for remote sealer thread. -type sealTask struct { - block *types.Block - results chan<- *types.Block -} - -// mineResult wraps the pow solution parameters for the specified block. -type mineResult struct { - nonce types.BlockNonce - mixDigest common.Hash - hash common.Hash - - errc chan error -} - -// hashrate wraps the hash rate submitted by the remote sealer. -type hashrate struct { - id common.Hash - ping time.Time - rate uint64 - - done chan struct{} -} - -// sealWork wraps a seal work package for remote sealer. -type sealWork struct { - errc chan error - res chan [4]string -} - -func startRemoteSealer(ethash *Ethash, urls []string, noverify bool) *remoteSealer { - ctx, cancel := context.WithCancel(context.Background()) - s := &remoteSealer{ - ethash: ethash, - noverify: noverify, - notifyURLs: urls, - notifyCtx: ctx, - cancelNotify: cancel, - works: make(map[common.Hash]*types.Block), - rates: make(map[common.Hash]hashrate), - workCh: make(chan *sealTask), - fetchWorkCh: make(chan *sealWork), - submitWorkCh: make(chan *mineResult), - fetchRateCh: make(chan chan uint64), - submitRateCh: make(chan *hashrate), - requestExit: make(chan struct{}), - exitCh: make(chan struct{}), - } - go s.loop() - return s -} - -func (s *remoteSealer) loop() { - defer func() { - s.ethash.config.Log.Trace("Ethash remote sealer is exiting") - s.cancelNotify() - s.reqWG.Wait() - close(s.exitCh) - }() - - ticker := time.NewTicker(5 * time.Second) - defer ticker.Stop() - - for { - select { - case work := <-s.workCh: - // Update current work with new received block. - // Note same work can be past twice, happens when changing CPU threads. - s.results = work.results - s.makeWork(work.block) - s.notifyWork() - - case work := <-s.fetchWorkCh: - // Return current mining work to remote miner. - if s.currentBlock == nil { - work.errc <- errNoMiningWork - } else { - work.res <- s.currentWork - } - - case result := <-s.submitWorkCh: - // Verify submitted PoW solution based on maintained mining blocks. - if s.submitWork(result.nonce, result.mixDigest, result.hash) { - result.errc <- nil - } else { - result.errc <- errInvalidSealResult - } - - case result := <-s.submitRateCh: - // Trace remote sealer's hash rate by submitted value. - s.rates[result.id] = hashrate{rate: result.rate, ping: time.Now()} - close(result.done) - - case req := <-s.fetchRateCh: - // Gather all hash rate submitted by remote sealer. - var total uint64 - for _, rate := range s.rates { - // this could overflow - total += rate.rate - } - req <- total - - case <-ticker.C: - // Clear stale submitted hash rate. - for id, rate := range s.rates { - if time.Since(rate.ping) > 10*time.Second { - delete(s.rates, id) - } - } - // Clear stale pending blocks - if s.currentBlock != nil { - for hash, block := range s.works { - if block.NumberU64()+staleThreshold <= s.currentBlock.NumberU64() { - delete(s.works, hash) - } - } - } - - case <-s.requestExit: - return - } - } -} - -// makeWork creates a work package for external miner. -// -// The work package consists of 3 strings: -// -// result[0], 32 bytes hex encoded current block header pow-hash -// result[1], 32 bytes hex encoded seed hash used for DAG -// result[2], 32 bytes hex encoded boundary condition ("target"), 2^256/difficulty -// result[3], hex encoded block number -func (s *remoteSealer) makeWork(block *types.Block) { - hash := s.ethash.SealHash(block.Header()) - s.currentWork[0] = hash.Hex() - s.currentWork[1] = common.BytesToHash(SeedHash(block.NumberU64())).Hex() - s.currentWork[2] = common.BytesToHash(new(big.Int).Div(two256, block.Difficulty()).Bytes()).Hex() - s.currentWork[3] = hexutil.EncodeBig(block.Number()) - - // Trace the seal work fetched by remote sealer. - s.currentBlock = block - s.works[hash] = block -} - -// notifyWork notifies all the specified mining endpoints of the availability of -// new work to be processed. -func (s *remoteSealer) notifyWork() { - work := s.currentWork - - // Encode the JSON payload of the notification. When NotifyFull is set, - // this is the complete block header, otherwise it is a JSON array. - var blob []byte - if s.ethash.config.NotifyFull { - blob, _ = json.Marshal(s.currentBlock.Header()) - } else { - blob, _ = json.Marshal(work) - } - - s.reqWG.Add(len(s.notifyURLs)) - for _, url := range s.notifyURLs { - go s.sendNotification(s.notifyCtx, url, blob, work) - } -} - -func (s *remoteSealer) sendNotification(ctx context.Context, url string, json []byte, work [4]string) { - defer s.reqWG.Done() - - req, err := http.NewRequest("POST", url, bytes.NewReader(json)) - if err != nil { - s.ethash.config.Log.Warn("Can't create remote miner notification", "err", err) - return - } - ctx, cancel := context.WithTimeout(ctx, remoteSealerTimeout) - defer cancel() - req = req.WithContext(ctx) - req.Header.Set("Content-Type", "application/json") - - resp, err := http.DefaultClient.Do(req) - if err != nil { - s.ethash.config.Log.Warn("Failed to notify remote miner", "err", err) - } else { - s.ethash.config.Log.Trace("Notified remote miner", "miner", url, "hash", work[0], "target", work[2]) - resp.Body.Close() - } -} - -// submitWork verifies the submitted pow solution, returning -// whether the solution was accepted or not (not can be both a bad pow as well as -// any other error, like no pending work or stale mining result). -func (s *remoteSealer) submitWork(nonce types.BlockNonce, mixDigest common.Hash, sealhash common.Hash) bool { - if s.currentBlock == nil { - s.ethash.config.Log.Error("Pending work without block", "sealhash", sealhash) - return false - } - // Make sure the work submitted is present - block := s.works[sealhash] - if block == nil { - s.ethash.config.Log.Warn("Work submitted but none pending", "sealhash", sealhash, "curnumber", s.currentBlock.NumberU64()) - return false - } - // Verify the correctness of submitted result. - header := block.Header() - header.Nonce = nonce - header.MixDigest = mixDigest - - start := time.Now() - if !s.noverify { - if err := s.ethash.verifySeal(nil, header, true); err != nil { - s.ethash.config.Log.Warn("Invalid proof-of-work submitted", "sealhash", sealhash, "elapsed", common.PrettyDuration(time.Since(start)), "err", err) - return false - } - } - // Make sure the result channel is assigned. - if s.results == nil { - s.ethash.config.Log.Warn("Ethash result channel is empty, submitted mining result is rejected") - return false - } - s.ethash.config.Log.Trace("Verified correct proof-of-work", "sealhash", sealhash, "elapsed", common.PrettyDuration(time.Since(start))) - - // Solutions seems to be valid, return to the miner and notify acceptance. - solution := block.WithSeal(header) - - // The submitted solution is within the scope of acceptance. - if solution.NumberU64()+staleThreshold > s.currentBlock.NumberU64() { - select { - case s.results <- solution: - s.ethash.config.Log.Debug("Work submitted is acceptable", "number", solution.NumberU64(), "sealhash", sealhash, "hash", solution.Hash()) - return true - default: - s.ethash.config.Log.Warn("Sealing result is not read by miner", "mode", "remote", "sealhash", sealhash) - return false - } - } - // The submitted block is too old to accept, drop it. - s.ethash.config.Log.Warn("Work submitted is too old", "number", solution.NumberU64(), "sealhash", sealhash, "hash", solution.Hash()) - return false -} diff --git a/consensus/ethash/sealer_test.go b/consensus/ethash/sealer_test.go deleted file mode 100644 index e338f7529..000000000 --- a/consensus/ethash/sealer_test.go +++ /dev/null @@ -1,298 +0,0 @@ -// Copyright 2018 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package ethash - -import ( - "encoding/json" - "io" - "math/big" - "net/http" - "net/http/httptest" - "strconv" - "testing" - "time" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/core/types" - "github.com/ethereum/go-ethereum/internal/testlog" - "github.com/ethereum/go-ethereum/log" -) - -// Tests whether remote HTTP servers are correctly notified of new work. -func TestRemoteNotify(t *testing.T) { - // Start a simple web server to capture notifications. - sink := make(chan [3]string) - server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) { - blob, err := io.ReadAll(req.Body) - if err != nil { - t.Errorf("failed to read miner notification: %v", err) - } - var work [3]string - if err := json.Unmarshal(blob, &work); err != nil { - t.Errorf("failed to unmarshal miner notification: %v", err) - } - sink <- work - })) - defer server.Close() - - // Create the custom ethash engine. - ethash := NewTester([]string{server.URL}, false) - defer ethash.Close() - - // Stream a work task and ensure the notification bubbles out. - header := &types.Header{Number: big.NewInt(1), Difficulty: big.NewInt(100)} - block := types.NewBlockWithHeader(header) - - ethash.Seal(nil, block, nil, nil) - select { - case work := <-sink: - if want := ethash.SealHash(header).Hex(); work[0] != want { - t.Errorf("work packet hash mismatch: have %s, want %s", work[0], want) - } - if want := common.BytesToHash(SeedHash(header.Number.Uint64())).Hex(); work[1] != want { - t.Errorf("work packet seed mismatch: have %s, want %s", work[1], want) - } - target := new(big.Int).Div(new(big.Int).Lsh(big.NewInt(1), 256), header.Difficulty) - if want := common.BytesToHash(target.Bytes()).Hex(); work[2] != want { - t.Errorf("work packet target mismatch: have %s, want %s", work[2], want) - } - case <-time.After(3 * time.Second): - t.Fatalf("notification timed out") - } -} - -// Tests whether remote HTTP servers are correctly notified of new work. (Full pending block body / --miner.notify.full) -func TestRemoteNotifyFull(t *testing.T) { - // Start a simple web server to capture notifications. - sink := make(chan map[string]interface{}) - server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) { - blob, err := io.ReadAll(req.Body) - if err != nil { - t.Errorf("failed to read miner notification: %v", err) - } - var work map[string]interface{} - if err := json.Unmarshal(blob, &work); err != nil { - t.Errorf("failed to unmarshal miner notification: %v", err) - } - sink <- work - })) - defer server.Close() - - // Create the custom ethash engine. - config := Config{ - PowMode: ModeTest, - NotifyFull: true, - Log: testlog.Logger(t, log.LvlWarn), - } - ethash := New(config, []string{server.URL}, false) - defer ethash.Close() - - // Stream a work task and ensure the notification bubbles out. - header := &types.Header{Number: big.NewInt(1), Difficulty: big.NewInt(100)} - block := types.NewBlockWithHeader(header) - - ethash.Seal(nil, block, nil, nil) - select { - case work := <-sink: - if want := "0x" + strconv.FormatUint(header.Number.Uint64(), 16); work["number"] != want { - t.Errorf("pending block number mismatch: have %v, want %v", work["number"], want) - } - if want := "0x" + header.Difficulty.Text(16); work["difficulty"] != want { - t.Errorf("pending block difficulty mismatch: have %s, want %s", work["difficulty"], want) - } - case <-time.After(3 * time.Second): - t.Fatalf("notification timed out") - } -} - -// Tests that pushing work packages fast to the miner doesn't cause any data race -// issues in the notifications. -func TestRemoteMultiNotify(t *testing.T) { - // Start a simple web server to capture notifications. - sink := make(chan [3]string, 64) - server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) { - blob, err := io.ReadAll(req.Body) - if err != nil { - t.Errorf("failed to read miner notification: %v", err) - } - var work [3]string - if err := json.Unmarshal(blob, &work); err != nil { - t.Errorf("failed to unmarshal miner notification: %v", err) - } - sink <- work - })) - defer server.Close() - - // Create the custom ethash engine. - ethash := NewTester([]string{server.URL}, false) - ethash.config.Log = testlog.Logger(t, log.LvlWarn) - defer ethash.Close() - - // Provide a results reader. - // Otherwise the unread results will be logged asynchronously - // and this can happen after the test is finished, causing a panic. - results := make(chan *types.Block, cap(sink)) - - // Stream a lot of work task and ensure all the notifications bubble out. - for i := 0; i < cap(sink); i++ { - header := &types.Header{Number: big.NewInt(int64(i)), Difficulty: big.NewInt(100)} - block := types.NewBlockWithHeader(header) - ethash.Seal(nil, block, results, nil) - } - - for i := 0; i < cap(sink); i++ { - select { - case <-sink: - <-results - case <-time.After(10 * time.Second): - t.Fatalf("notification %d timed out", i) - } - } -} - -// Tests that pushing work packages fast to the miner doesn't cause any data race -// issues in the notifications. Full pending block body / --miner.notify.full) -func TestRemoteMultiNotifyFull(t *testing.T) { - // Start a simple web server to capture notifications. - sink := make(chan map[string]interface{}, 64) - server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) { - blob, err := io.ReadAll(req.Body) - if err != nil { - t.Errorf("failed to read miner notification: %v", err) - } - var work map[string]interface{} - if err := json.Unmarshal(blob, &work); err != nil { - t.Errorf("failed to unmarshal miner notification: %v", err) - } - sink <- work - })) - defer server.Close() - - // Create the custom ethash engine. - config := Config{ - PowMode: ModeTest, - NotifyFull: true, - Log: testlog.Logger(t, log.LvlWarn), - } - ethash := New(config, []string{server.URL}, false) - defer ethash.Close() - - // Provide a results reader. - // Otherwise the unread results will be logged asynchronously - // and this can happen after the test is finished, causing a panic. - results := make(chan *types.Block, cap(sink)) - - // Stream a lot of work task and ensure all the notifications bubble out. - for i := 0; i < cap(sink); i++ { - header := &types.Header{Number: big.NewInt(int64(i)), Difficulty: big.NewInt(100)} - block := types.NewBlockWithHeader(header) - ethash.Seal(nil, block, results, nil) - } - - for i := 0; i < cap(sink); i++ { - select { - case <-sink: - <-results - case <-time.After(10 * time.Second): - t.Fatalf("notification %d timed out", i) - } - } -} - -// Tests whether stale solutions are correctly processed. -func TestStaleSubmission(t *testing.T) { - ethash := NewTester(nil, true) - defer ethash.Close() - api := &API{ethash} - - fakeNonce, fakeDigest := types.BlockNonce{0x01, 0x02, 0x03}, common.HexToHash("deadbeef") - - testcases := []struct { - headers []*types.Header - submitIndex int - submitRes bool - }{ - // Case1: submit solution for the latest mining package - { - []*types.Header{ - {ParentHash: common.BytesToHash([]byte{0xa}), Number: big.NewInt(1), Difficulty: big.NewInt(100000000)}, - }, - 0, - true, - }, - // Case2: submit solution for the previous package but have same parent. - { - []*types.Header{ - {ParentHash: common.BytesToHash([]byte{0xb}), Number: big.NewInt(2), Difficulty: big.NewInt(100000000)}, - {ParentHash: common.BytesToHash([]byte{0xb}), Number: big.NewInt(2), Difficulty: big.NewInt(100000001)}, - }, - 0, - true, - }, - // Case3: submit stale but acceptable solution - { - []*types.Header{ - {ParentHash: common.BytesToHash([]byte{0xc}), Number: big.NewInt(3), Difficulty: big.NewInt(100000000)}, - {ParentHash: common.BytesToHash([]byte{0xd}), Number: big.NewInt(9), Difficulty: big.NewInt(100000000)}, - }, - 0, - true, - }, - // Case4: submit very old solution - { - []*types.Header{ - {ParentHash: common.BytesToHash([]byte{0xe}), Number: big.NewInt(10), Difficulty: big.NewInt(100000000)}, - {ParentHash: common.BytesToHash([]byte{0xf}), Number: big.NewInt(17), Difficulty: big.NewInt(100000000)}, - }, - 0, - false, - }, - } - results := make(chan *types.Block, 16) - - for id, c := range testcases { - for _, h := range c.headers { - ethash.Seal(nil, types.NewBlockWithHeader(h), results, nil) - } - if res := api.SubmitWork(fakeNonce, ethash.SealHash(c.headers[c.submitIndex]), fakeDigest); res != c.submitRes { - t.Errorf("case %d submit result mismatch, want %t, get %t", id+1, c.submitRes, res) - } - if !c.submitRes { - continue - } - select { - case res := <-results: - if res.Header().Nonce != fakeNonce { - t.Errorf("case %d block nonce mismatch, want %x, get %x", id+1, fakeNonce, res.Header().Nonce) - } - if res.Header().MixDigest != fakeDigest { - t.Errorf("case %d block digest mismatch, want %x, get %x", id+1, fakeDigest, res.Header().MixDigest) - } - if res.Header().Difficulty.Uint64() != c.headers[c.submitIndex].Difficulty.Uint64() { - t.Errorf("case %d block difficulty mismatch, want %d, get %d", id+1, c.headers[c.submitIndex].Difficulty, res.Header().Difficulty) - } - if res.Header().Number.Uint64() != c.headers[c.submitIndex].Number.Uint64() { - t.Errorf("case %d block number mismatch, want %d, get %d", id+1, c.headers[c.submitIndex].Number.Uint64(), res.Header().Number.Uint64()) - } - if res.Header().ParentHash != c.headers[c.submitIndex].ParentHash { - t.Errorf("case %d block parent hash mismatch, want %s, get %s", id+1, c.headers[c.submitIndex].ParentHash.Hex(), res.Header().ParentHash.Hex()) - } - case <-time.NewTimer(time.Second).C: - t.Errorf("case %d fetch ethash result timeout", id+1) - } - } -} diff --git a/consensus/istanbul/backend/engine.go b/consensus/istanbul/backend/engine.go index f481254e5..67728883a 100644 --- a/consensus/istanbul/backend/engine.go +++ b/consensus/istanbul/backend/engine.go @@ -61,7 +61,7 @@ func (sb *Backend) Signers(header *types.Header) ([]common.Address, error) { // VerifyHeader checks whether a header conforms to the consensus rules of a // given engine. Verifying the seal may be done optionally here, or explicitly // via the VerifySeal method. -func (sb *Backend) VerifyHeader(chain consensus.ChainHeaderReader, header *types.Header, seal bool) error { +func (sb *Backend) VerifyHeader(chain consensus.ChainHeaderReader, header *types.Header) error { return sb.verifyHeader(chain, header, nil) } @@ -79,7 +79,7 @@ func (sb *Backend) verifyHeader(chain consensus.ChainHeaderReader, header *types // concurrently. The method returns a quit channel to abort the operations and // a results channel to retrieve the async verifications (the order is that of // the input slice). -func (sb *Backend) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*types.Header, seals []bool) (chan<- struct{}, <-chan error) { +func (sb *Backend) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*types.Header) (chan<- struct{}, <-chan error) { abort := make(chan struct{}) results := make(chan error, len(headers)) go func() { diff --git a/consensus/istanbul/backend/engine_test.go b/consensus/istanbul/backend/engine_test.go index 994266598..efe404061 100644 --- a/consensus/istanbul/backend/engine_test.go +++ b/consensus/istanbul/backend/engine_test.go @@ -261,7 +261,7 @@ func TestVerifyHeader(t *testing.T) { // istanbulcommon.ErrEmptyCommittedSeals case block := makeBlockWithoutSeal(chain, engine, chain.Genesis()) block = updateQBFTBlock(block, engine.Address()) - err := engine.VerifyHeader(chain, block.Header(), false) + err := engine.VerifyHeader(chain, block.Header()) if err != istanbulcommon.ErrEmptyCommittedSeals { t.Errorf("error mismatch: have %v, want %v", err, istanbulcommon.ErrEmptyCommittedSeals) } @@ -269,13 +269,13 @@ func TestVerifyHeader(t *testing.T) { // short extra data header := block.Header() header.Extra = []byte{} - err = engine.VerifyHeader(chain, header, false) + err = engine.VerifyHeader(chain, header) if err != istanbulcommon.ErrInvalidExtraDataFormat { t.Errorf("error mismatch: have %v, want %v", err, istanbulcommon.ErrInvalidExtraDataFormat) } // incorrect extra format header.Extra = []byte("0000000000000000000000000000000012300000000000000000000000000000000000000000000000000000000000000000") - err = engine.VerifyHeader(chain, header, false) + err = engine.VerifyHeader(chain, header) if err != istanbulcommon.ErrInvalidExtraDataFormat { t.Errorf("error mismatch: have %v, want %v", err, istanbulcommon.ErrInvalidExtraDataFormat) } @@ -284,7 +284,7 @@ func TestVerifyHeader(t *testing.T) { block = makeBlockWithoutSeal(chain, engine, chain.Genesis()) header = block.Header() header.MixDigest = common.StringToHash("123456789") - err = engine.VerifyHeader(chain, header, false) + err = engine.VerifyHeader(chain, header) if err != istanbulcommon.ErrInvalidMixDigest { t.Errorf("error mismatch: have %v, want %v", err, istanbulcommon.ErrInvalidMixDigest) } @@ -293,7 +293,7 @@ func TestVerifyHeader(t *testing.T) { block = makeBlockWithoutSeal(chain, engine, chain.Genesis()) header = block.Header() header.UncleHash = common.StringToHash("123456789") - err = engine.VerifyHeader(chain, header, false) + err = engine.VerifyHeader(chain, header) if err != istanbulcommon.ErrInvalidUncleHash { t.Errorf("error mismatch: have %v, want %v", err, istanbulcommon.ErrInvalidUncleHash) } @@ -302,7 +302,7 @@ func TestVerifyHeader(t *testing.T) { block = makeBlockWithoutSeal(chain, engine, chain.Genesis()) header = block.Header() header.Difficulty = big.NewInt(2) - err = engine.VerifyHeader(chain, header, false) + err = engine.VerifyHeader(chain, header) if err != istanbulcommon.ErrInvalidDifficulty { t.Errorf("error mismatch: have %v, want %v", err, istanbulcommon.ErrInvalidDifficulty) } @@ -311,7 +311,7 @@ func TestVerifyHeader(t *testing.T) { block = makeBlockWithoutSeal(chain, engine, chain.Genesis()) header = block.Header() header.Time = chain.Genesis().Time() + (engine.config.GetConfig(block.Number()).BlockPeriod - 1) - err = engine.VerifyHeader(chain, header, false) + err = engine.VerifyHeader(chain, header) if err != istanbulcommon.ErrInvalidTimestamp { t.Errorf("error mismatch: have %v, want %v", err, istanbulcommon.ErrInvalidTimestamp) } @@ -320,7 +320,7 @@ func TestVerifyHeader(t *testing.T) { block = makeBlockWithoutSeal(chain, engine, chain.Genesis()) header = block.Header() header.Time = uint64(time.Now().Unix() + 10) - err = engine.VerifyHeader(chain, header, false) + err = engine.VerifyHeader(chain, header) if err != consensus.ErrFutureBlock { t.Errorf("error mismatch: have %v, want %v", err, consensus.ErrFutureBlock) } @@ -331,7 +331,7 @@ func TestVerifyHeader(t *testing.T) { header.Time = new(big.Int).Add(big.NewInt(time.Now().Unix()), new(big.Int).SetUint64(10)).Uint64() priorValue := engine.config.AllowedFutureBlockTime engine.config.AllowedFutureBlockTime = 10 - err = engine.VerifyHeader(chain, header, false) + err = engine.VerifyHeader(chain, header) engine.config.AllowedFutureBlockTime = priorValue //restore changed value if err == consensus.ErrFutureBlock { t.Errorf("error mismatch: have %v, want nil", err) @@ -374,7 +374,7 @@ func TestVerifyHeaders(t *testing.T) { // now = func() time.Time { // return time.Unix(int64(headers[size-1].Time), 0) // } - _, results := engine.VerifyHeaders(chain, headers, nil) + _, results := engine.VerifyHeaders(chain, headers) const timeoutDura = 2 * time.Second timeout := time.NewTimer(timeoutDura) index := 0 @@ -396,7 +396,7 @@ OUT1: break OUT1 } } - _, results = engine.VerifyHeaders(chain, headers, nil) + _, results = engine.VerifyHeaders(chain, headers) timeout = time.NewTimer(timeoutDura) OUT2: for { @@ -414,7 +414,7 @@ OUT2: } // error header cases headers[2].Number = big.NewInt(100) - _, results = engine.VerifyHeaders(chain, headers, nil) + _, results = engine.VerifyHeaders(chain, headers) timeout = time.NewTimer(timeoutDura) index = 0 errors := 0 diff --git a/consensus/istanbul/qbft/engine/engine.go b/consensus/istanbul/qbft/engine/engine.go index f5cd5257e..9577d1fc7 100644 --- a/consensus/istanbul/qbft/engine/engine.go +++ b/consensus/istanbul/qbft/engine/engine.go @@ -155,7 +155,7 @@ func (e *Engine) verifyHeader(chain consensus.ChainHeaderReader, header *types.H return e.verifyCascadingFields(chain, header, validators, parents) } -func (e *Engine) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*types.Header, seals []bool, validators istanbul.ValidatorSet) (chan<- struct{}, <-chan error) { +func (e *Engine) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*types.Header, validators istanbul.ValidatorSet) (chan<- struct{}, <-chan error) { abort := make(chan struct{}) results := make(chan error, len(headers)) go func() { diff --git a/console/console_test.go b/console/console_test.go index d7a1983df..ef1f1693e 100644 --- a/console/console_test.go +++ b/console/console_test.go @@ -26,7 +26,6 @@ import ( "time" "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/consensus/ethash" "github.com/ethereum/go-ethereum/console/prompt" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/eth" @@ -102,9 +101,6 @@ func newTester(t *testing.T, confOverride func(*ethconfig.Config)) *tester { Miner: miner.Config{ Etherbase: common.HexToAddress(testAddress), }, - Ethash: ethash.Config{ - PowMode: ethash.ModeTest, - }, } if confOverride != nil { confOverride(ethConf) diff --git a/core/block_validator_test.go b/core/block_validator_test.go index de915aa76..cc133ae7a 100644 --- a/core/block_validator_test.go +++ b/core/block_validator_test.go @@ -51,10 +51,10 @@ func TestHeaderVerification(t *testing.T) { if valid { engine := ethash.NewFaker() - _, results = engine.VerifyHeaders(chain, []*types.Header{headers[i]}, []bool{true}) + _, results = engine.VerifyHeaders(chain, []*types.Header{headers[i]}) } else { engine := ethash.NewFakeFailer(headers[i].Number.Uint64()) - _, results = engine.VerifyHeaders(chain, []*types.Header{headers[i]}, []bool{true}) + _, results = engine.VerifyHeaders(chain, []*types.Header{headers[i]}) } // Wait for the verification result select { @@ -90,11 +90,9 @@ func testHeaderConcurrentVerification(t *testing.T, threads int) { blocks, _ = GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), testdb, 8, nil) ) headers := make([]*types.Header, len(blocks)) - seals := make([]bool, len(blocks)) for i, block := range blocks { headers[i] = block.Header() - seals[i] = true } // Set the number of threads to verify on old := runtime.GOMAXPROCS(threads) @@ -107,11 +105,11 @@ func testHeaderConcurrentVerification(t *testing.T, threads int) { if valid { chain, _ := NewBlockChain(testdb, nil, params.TestChainConfig, ethash.NewFaker(), vm.Config{}, nil, nil, nil) - _, results = chain.engine.VerifyHeaders(chain, headers, seals) + _, results = chain.engine.VerifyHeaders(chain, headers) chain.Stop() } else { chain, _ := NewBlockChain(testdb, nil, params.TestChainConfig, ethash.NewFakeFailer(uint64(len(headers)-1)), vm.Config{}, nil, nil, nil) - _, results = chain.engine.VerifyHeaders(chain, headers, seals) + _, results = chain.engine.VerifyHeaders(chain, headers) chain.Stop() } // Wait for all the verification results @@ -162,11 +160,9 @@ func testHeaderConcurrentAbortion(t *testing.T, threads int) { blocks, _ = GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), testdb, 1024, nil) ) headers := make([]*types.Header, len(blocks)) - seals := make([]bool, len(blocks)) for i, block := range blocks { headers[i] = block.Header() - seals[i] = true } // Set the number of threads to verify on old := runtime.GOMAXPROCS(threads) @@ -176,7 +172,7 @@ func testHeaderConcurrentAbortion(t *testing.T, threads int) { chain, _ := NewBlockChain(testdb, nil, params.TestChainConfig, ethash.NewFakeDelayer(time.Millisecond), vm.Config{}, nil, nil, nil) defer chain.Stop() - abort, results := chain.engine.VerifyHeaders(chain, headers, seals) + abort, results := chain.engine.VerifyHeaders(chain, headers) close(abort) // Deplete the results channel diff --git a/core/blockchain.go b/core/blockchain.go index 3682eab31..71ac0b465 100644 --- a/core/blockchain.go +++ b/core/blockchain.go @@ -373,7 +373,7 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par // The first thing the node will do is reconstruct the verification data for // the head block (ethash cache or clique voting snapshot). Might as well do // it in advance. - bc.engine.VerifyHeader(bc, bc.CurrentHeader(), true) + bc.engine.VerifyHeader(bc, bc.CurrentHeader()) // Check the current state of the block hashes and make sure that we do not have any of the bad blocks in our chain for hash := range BadHashes { @@ -1591,7 +1591,7 @@ func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types. } // QUORUM -// checks if the consensus engine is Rfat +// checks if the consensus engine is Raft func (bc *BlockChain) isRaft() bool { return bc.chainConfig.IsQuorum && bc.chainConfig.Istanbul == nil && bc.chainConfig.IBFT == nil && bc.chainConfig.QBFT == nil && bc.chainConfig.Clique == nil } @@ -1825,7 +1825,7 @@ func (bc *BlockChain) InsertChain(chain types.Blocks) (int, error) { // Pre-checks passed, start the full block imports bc.wg.Add(1) bc.chainmu.Lock() - n, err := bc.insertChain(chain, true) + n, err := bc.insertChain(chain) bc.chainmu.Unlock() bc.wg.Done() @@ -1841,7 +1841,7 @@ func (bc *BlockChain) InsertChainWithoutSealVerification(block *types.Block) (in // Pre-checks passed, start the full block imports bc.wg.Add(1) bc.chainmu.Lock() - n, err := bc.insertChain(types.Blocks([]*types.Block{block}), false) + n, err := bc.insertChain(types.Blocks([]*types.Block{block})) bc.chainmu.Unlock() bc.wg.Done() @@ -1856,7 +1856,7 @@ func (bc *BlockChain) InsertChainWithoutSealVerification(block *types.Block) (in // racey behaviour. If a sidechain import is in progress, and the historic state // is imported, but then new canon-head is added before the actual sidechain // completes, then the historic state could be pruned again -func (bc *BlockChain) insertChain(chain types.Blocks, verifySeals bool) (int, error) { +func (bc *BlockChain) insertChain(chain types.Blocks) (int, error) { // If the chain is terminating, don't even bother starting up if atomic.LoadInt32(&bc.procInterrupt) == 1 { log.Debug("Premature abort during blocks processing") @@ -1882,13 +1882,10 @@ func (bc *BlockChain) insertChain(chain types.Blocks, verifySeals bool) (int, er }() // Start the parallel header verifier headers := make([]*types.Header, len(chain)) - seals := make([]bool, len(chain)) - for i, block := range chain { headers[i] = block.Header() - seals[i] = verifySeals } - abort, results := bc.engine.VerifyHeaders(bc, headers, seals) + abort, results := bc.engine.VerifyHeaders(bc, headers) defer close(abort) // Peek the error for the first block to decide the directing import logic @@ -2297,7 +2294,7 @@ func (bc *BlockChain) insertSideChain(block *types.Block, it *insertIterator) (i // memory here. if len(blocks) >= 2048 || memory > 64*1024*1024 { log.Info("Importing heavy sidechain segment", "blocks", len(blocks), "start", blocks[0].NumberU64(), "end", block.NumberU64()) - if _, err := bc.insertChain(blocks, false); err != nil { + if _, err := bc.insertChain(blocks); err != nil { return 0, err } blocks, memory = blocks[:0], 0 @@ -2311,7 +2308,7 @@ func (bc *BlockChain) insertSideChain(block *types.Block, it *insertIterator) (i } if len(blocks) > 0 { log.Info("Importing sidechain segment", "start", blocks[0].NumberU64(), "end", blocks[len(blocks)-1].NumberU64()) - return bc.insertChain(blocks, false) + return bc.insertChain(blocks) } return 0, nil } @@ -2613,9 +2610,9 @@ Error: %v // should be done or not. The reason behind the optional check is because some // of the header retrieval mechanisms already need to verify nonces, as well as // because nonces can be verified sparsely, not needing to check each. -func (bc *BlockChain) InsertHeaderChain(chain []*types.Header, checkFreq int) (int, error) { +func (bc *BlockChain) InsertHeaderChain(chain []*types.Header) (int, error) { start := time.Now() - if i, err := bc.hc.ValidateHeaderChain(chain, checkFreq); err != nil { + if i, err := bc.hc.ValidateHeaderChain(chain); err != nil { return i, err } diff --git a/core/blockchain_test.go b/core/blockchain_test.go index 3a73e117e..4e44ce7d0 100644 --- a/core/blockchain_test.go +++ b/core/blockchain_test.go @@ -69,7 +69,7 @@ func newCanonical(engine consensus.Engine, n int, full bool) (ethdb.Database, *B } // Header-only chain requested headers := makeHeaderChain(genesis.Header(), n, engine, db, canonicalSeed) - _, err := blockchain.InsertHeaderChain(headers, 1) + _, err := blockchain.InsertHeaderChain(headers) return db, blockchain, err } @@ -106,7 +106,7 @@ func testFork(t *testing.T, blockchain *BlockChain, i, n int, full bool, compara } } else { headerChainB = makeHeaderChain(blockchain2.CurrentHeader(), n, ethash.NewFaker(), db, forkSeed) - if _, err := blockchain2.InsertHeaderChain(headerChainB, 1); err != nil { + if _, err := blockchain2.InsertHeaderChain(headerChainB); err != nil { t.Fatalf("failed to insert forking chain: %v", err) } } @@ -135,7 +135,7 @@ func testFork(t *testing.T, blockchain *BlockChain, i, n int, full bool, compara func testBlockChainImport(chain types.Blocks, blockchain *BlockChain) error { for _, block := range chain { // Try and process the block - err := blockchain.engine.VerifyHeader(blockchain, block.Header(), true) + err := blockchain.engine.VerifyHeader(blockchain, block.Header()) if err == nil { err = blockchain.validator.ValidateBody(block) } @@ -177,7 +177,7 @@ func testBlockChainImport(chain types.Blocks, blockchain *BlockChain) error { func testHeaderChainImport(chain []*types.Header, blockchain *BlockChain) error { for _, header := range chain { // Try and validate the header - if err := blockchain.engine.VerifyHeader(blockchain, header, false); err != nil { + if err := blockchain.engine.VerifyHeader(blockchain, header); err != nil { return err } // Manually insert the header into the database, but don't reorganise (allows subsequent testing) @@ -409,10 +409,10 @@ func testReorg(t *testing.T, first, second []int64, td int64, full bool) { for i, block := range diffBlocks { diffHeaders[i] = block.Header() } - if _, err := blockchain.InsertHeaderChain(easyHeaders, 1); err != nil { + if _, err := blockchain.InsertHeaderChain(easyHeaders); err != nil { t.Fatalf("failed to insert easy chain: %v", err) } - if _, err := blockchain.InsertHeaderChain(diffHeaders, 1); err != nil { + if _, err := blockchain.InsertHeaderChain(diffHeaders); err != nil { t.Fatalf("failed to insert difficult chain: %v", err) } } @@ -471,7 +471,7 @@ func testBadHashes(t *testing.T, full bool) { BadHashes[headers[2].Hash()] = true defer func() { delete(BadHashes, headers[2].Hash()) }() - _, err = blockchain.InsertHeaderChain(headers, 1) + _, err = blockchain.InsertHeaderChain(headers) } if !errors.Is(err, ErrBlacklistedHash) { t.Errorf("error mismatch: have: %v, want: %v", err, ErrBlacklistedHash) @@ -503,7 +503,7 @@ func testReorgBadHashes(t *testing.T, full bool) { BadHashes[blocks[3].Header().Hash()] = true defer func() { delete(BadHashes, blocks[3].Header().Hash()) }() } else { - if _, err = blockchain.InsertHeaderChain(headers, 1); err != nil { + if _, err = blockchain.InsertHeaderChain(headers); err != nil { t.Errorf("failed to import headers: %v", err) } if blockchain.CurrentHeader().Hash() != headers[3].Hash() { @@ -569,7 +569,7 @@ func testInsertNonceError(t *testing.T, full bool) { blockchain.engine = ethash.NewFakeFailer(failNum) blockchain.hc.engine = blockchain.engine - failRes, err = blockchain.InsertHeaderChain(headers, 1) + failRes, err = blockchain.InsertHeaderChain(headers) } // Check that the returned error indicates the failure if failRes != failAt { @@ -643,7 +643,7 @@ func TestFastVsFullChains(t *testing.T) { for i, block := range blocks { headers[i] = block.Header() } - if n, err := fast.InsertHeaderChain(headers, 1); err != nil { + if n, err := fast.InsertHeaderChain(headers); err != nil { t.Fatalf("failed to insert header %d: %v", n, err) } if n, err := fast.InsertReceiptChain(blocks, receipts, 0); err != nil { @@ -663,7 +663,7 @@ func TestFastVsFullChains(t *testing.T) { ancient, _ := NewBlockChain(ancientDb, nil, gspec.Config, ethash.NewFaker(), vm.Config{}, nil, nil, nil) defer ancient.Stop() - if n, err := ancient.InsertHeaderChain(headers, 1); err != nil { + if n, err := ancient.InsertHeaderChain(headers); err != nil { t.Fatalf("failed to insert header %d: %v", n, err) } if n, err := ancient.InsertReceiptChain(blocks, receipts, uint64(len(blocks)/2)); err != nil { @@ -780,7 +780,7 @@ func TestLightVsFastVsFullChainHeads(t *testing.T) { for i, block := range blocks { headers[i] = block.Header() } - if n, err := fast.InsertHeaderChain(headers, 1); err != nil { + if n, err := fast.InsertHeaderChain(headers); err != nil { t.Fatalf("failed to insert header %d: %v", n, err) } if n, err := fast.InsertReceiptChain(blocks, receipts, 0); err != nil { @@ -796,7 +796,7 @@ func TestLightVsFastVsFullChainHeads(t *testing.T) { ancient, _ := NewBlockChain(ancientDb, nil, gspec.Config, ethash.NewFaker(), vm.Config{}, nil, nil, nil) defer ancient.Stop() - if n, err := ancient.InsertHeaderChain(headers, 1); err != nil { + if n, err := ancient.InsertHeaderChain(headers); err != nil { t.Fatalf("failed to insert header %d: %v", n, err) } if n, err := ancient.InsertReceiptChain(blocks, receipts, uint64(3*len(blocks)/4)); err != nil { @@ -813,7 +813,7 @@ func TestLightVsFastVsFullChainHeads(t *testing.T) { lightDb, delfn := makeDb() defer delfn() light, _ := NewBlockChain(lightDb, nil, gspec.Config, ethash.NewFaker(), vm.Config{}, nil, nil, nil) - if n, err := light.InsertHeaderChain(headers, 1); err != nil { + if n, err := light.InsertHeaderChain(headers); err != nil { t.Fatalf("failed to insert header %d: %v", n, err) } defer light.Stop() @@ -1603,7 +1603,7 @@ func TestBlockchainRecovery(t *testing.T) { for i, block := range blocks { headers[i] = block.Header() } - if n, err := ancient.InsertHeaderChain(headers, 1); err != nil { + if n, err := ancient.InsertHeaderChain(headers); err != nil { t.Fatalf("failed to insert header %d: %v", n, err) } if n, err := ancient.InsertReceiptChain(blocks, receipts, uint64(3*len(blocks)/4)); err != nil { @@ -1661,7 +1661,7 @@ func TestIncompleteAncientReceiptChainInsertion(t *testing.T) { for i, block := range blocks { headers[i] = block.Header() } - if n, err := ancient.InsertHeaderChain(headers, 1); err != nil { + if n, err := ancient.InsertHeaderChain(headers); err != nil { t.Fatalf("failed to insert header %d: %v", n, err) } // Abort ancient receipt chain insertion deliberately @@ -1870,7 +1870,7 @@ func testInsertKnownChainData(t *testing.T, typ string) { for _, block := range blocks { headers = append(headers, block.Header()) } - _, err := chain.InsertHeaderChain(headers, 1) + _, err := chain.InsertHeaderChain(headers) return err } asserter = func(t *testing.T, block *types.Block) { @@ -1884,7 +1884,7 @@ func testInsertKnownChainData(t *testing.T, typ string) { for _, block := range blocks { headers = append(headers, block.Header()) } - _, err := chain.InsertHeaderChain(headers, 1) + _, err := chain.InsertHeaderChain(headers) if err != nil { return err } @@ -2045,7 +2045,7 @@ func TestReorgToShorterRemovesCanonMappingHeaderChain(t *testing.T) { for i, block := range canonblocks { canonHeaders[i] = block.Header() } - if n, err := chain.InsertHeaderChain(canonHeaders, 0); err != nil { + if n, err := chain.InsertHeaderChain(canonHeaders); err != nil { t.Fatalf("header %d: failed to insert into chain: %v", n, err) } canonNum := chain.CurrentHeader().Number.Uint64() @@ -2053,7 +2053,7 @@ func TestReorgToShorterRemovesCanonMappingHeaderChain(t *testing.T) { for i, block := range sideblocks { sideHeaders[i] = block.Header() } - if n, err := chain.InsertHeaderChain(sideHeaders, 0); err != nil { + if n, err := chain.InsertHeaderChain(sideHeaders); err != nil { t.Fatalf("header %d: failed to insert into chain: %v", n, err) } head := chain.CurrentHeader() @@ -2144,7 +2144,7 @@ func TestTransactionIndices(t *testing.T) { for i, block := range blocks { headers[i] = block.Header() } - if n, err := chain.InsertHeaderChain(headers, 0); err != nil { + if n, err := chain.InsertHeaderChain(headers); err != nil { t.Fatalf("failed to insert header %d: %v", n, err) } if n, err := chain.InsertReceiptChain(blocks, receipts, 128); err != nil { @@ -2271,7 +2271,7 @@ func TestSkipStaleTxIndicesInFastSync(t *testing.T) { for i, block := range blocks { headers[i] = block.Header() } - if n, err := chain.InsertHeaderChain(headers, 0); err != nil { + if n, err := chain.InsertHeaderChain(headers); err != nil { t.Fatalf("failed to insert header %d: %v", n, err) } // The indices before ancient-N(32) should be ignored. After that all blocks should be indexed. diff --git a/core/headerchain.go b/core/headerchain.go index 1dbf95878..7c37c4ed3 100644 --- a/core/headerchain.go +++ b/core/headerchain.go @@ -296,7 +296,7 @@ func (hc *HeaderChain) writeHeaders(headers []*types.Header) (result *headerWrit }, nil } -func (hc *HeaderChain) ValidateHeaderChain(chain []*types.Header, checkFreq int) (int, error) { +func (hc *HeaderChain) ValidateHeaderChain(chain []*types.Header) (int, error) { // Do a sanity check that the provided chain is actually ordered and linked for i := 1; i < len(chain); i++ { if chain[i].Number.Uint64() != chain[i-1].Number.Uint64()+1 { @@ -319,22 +319,8 @@ func (hc *HeaderChain) ValidateHeaderChain(chain []*types.Header, checkFreq int) } } - // Generate the list of seal verification requests, and start the parallel verifier - seals := make([]bool, len(chain)) - if checkFreq != 0 { - // In case of checkFreq == 0 all seals are left false. - for i := 0; i <= len(seals)/checkFreq; i++ { - index := i*checkFreq + hc.rand.Intn(checkFreq) - if index >= len(seals) { - index = len(seals) - 1 - } - seals[index] = true - } - // Last should always be verified to avoid junk. - seals[len(seals)-1] = true - } - - abort, results := hc.engine.VerifyHeaders(hc, chain, seals) + // Start the parallel verifier + abort, results := hc.engine.VerifyHeaders(hc, chain) defer close(abort) // Iterate over the headers and ensure they all check out diff --git a/eth/api.go b/eth/api.go index fd361a642..5e00f0276 100644 --- a/eth/api.go +++ b/eth/api.go @@ -24,7 +24,6 @@ import ( "io" "math/big" "os" - "runtime" "strings" "time" @@ -98,11 +97,8 @@ func NewPrivateMinerAPI(e *Ethereum) *PrivateMinerAPI { // usable by this process. If mining is already running, this method adjust the // number of threads allowed to use and updates the minimum price required by the // transaction pool. -func (api *PrivateMinerAPI) Start(threads *int) error { - if threads == nil { - return api.e.StartMining(runtime.NumCPU()) - } - return api.e.StartMining(*threads) +func (api *PrivateMinerAPI) Start() error { + return api.e.StartMining() } // Stop terminates the miner, both at the consensus engine level as well as at diff --git a/eth/api_backend.go b/eth/api_backend.go index d7b4cc0c5..7c7cb01d5 100644 --- a/eth/api_backend.go +++ b/eth/api_backend.go @@ -450,8 +450,8 @@ func (b *EthAPIBackend) Miner() *miner.Miner { return b.eth.Miner() } -func (b *EthAPIBackend) StartMining(threads int) error { - return b.eth.StartMining(threads) +func (b *EthAPIBackend) StartMining() error { + return b.eth.StartMining() } func (b *EthAPIBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive bool) (*state.StateDB, mps.PrivateStateRepository, error) { diff --git a/eth/backend.go b/eth/backend.go index 9e0d7cb70..d9b710083 100644 --- a/eth/backend.go +++ b/eth/backend.go @@ -136,10 +136,6 @@ func New(stack *node.Node, config *ethconfig.Config) (*Ethereum, error) { } log.Info("Allocated trie memory caches", "clean", common.StorageSize(config.TrieCleanCache)*1024*1024, "dirty", common.StorageSize(config.TrieDirtyCache)*1024*1024) - // Transfer mining-related config to the ethash config. - ethashConfig := config.Ethash - ethashConfig.NotifyFull = config.Miner.NotifyFull - // Assemble the Ethereum object chainDb, err := stack.OpenDatabaseWithFreezer("chaindata", config.DatabaseCache, config.DatabaseHandles, config.DatabaseFreezer, "eth/db/chaindata/", false) if err != nil { @@ -182,7 +178,7 @@ func New(stack *node.Node, config *ethconfig.Config) (*Ethereum, error) { chainDb: chainDb, eventMux: stack.EventMux(), accountManager: stack.AccountManager(), - engine: ethconfig.CreateConsensusEngine(stack, chainConfig, config, config.Miner.Notify, config.Miner.Noverify, chainDb), + engine: ethconfig.CreateConsensusEngine(stack, chainConfig, config, chainDb), closeBloomHandler: make(chan struct{}), networkID: config.NetworkId, gasPrice: config.Miner.GasPrice, @@ -682,18 +678,7 @@ func (s *Ethereum) SetEtherbase(etherbase common.Address) bool { // StartMining starts the miner with the given number of CPU threads. If mining // is already running, this method adjust the number of threads allowed to use // and updates the minimum price required by the transaction pool. -func (s *Ethereum) StartMining(threads int) error { - // Update the thread count within the consensus engine - type threaded interface { - SetThreads(threads int) - } - if th, ok := s.engine.(threaded); ok { - log.Info("Updated mining threads", "threads", threads) - if threads == 0 { - threads = -1 // Disable the miner from within - } - th.SetThreads(threads) - } +func (s *Ethereum) StartMining() error { // If the miner was not running, initialize it if !s.IsMining() { // Propagate the initial price point to the transaction pool diff --git a/eth/catalyst/api_test.go b/eth/catalyst/api_test.go index b8a6e43fc..56490f98d 100644 --- a/eth/catalyst/api_test.go +++ b/eth/catalyst/api_test.go @@ -19,6 +19,7 @@ package catalyst import ( "math/big" "testing" + "time" "github.com/ethereum/go-ethereum/consensus/ethash" "github.com/ethereum/go-ethereum/core" @@ -26,6 +27,7 @@ import ( "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/eth" + "github.com/ethereum/go-ethereum/eth/downloader" "github.com/ethereum/go-ethereum/eth/ethconfig" "github.com/ethereum/go-ethereum/node" "github.com/ethereum/go-ethereum/params" @@ -223,7 +225,7 @@ func startEthService(t *testing.T, genesis *core.Genesis, blocks []*types.Block) t.Fatal("can't create node:", err) } - ethcfg := ðconfig.Config{Genesis: genesis, Ethash: ethash.Config{PowMode: ethash.ModeFake}} + ethcfg := ðconfig.Config{Genesis: genesis, SyncMode: downloader.FullSync, TrieTimeout: time.Minute, TrieDirtyCache: 256, TrieCleanCache: 256} ethservice, err := eth.New(n, ethcfg) if err != nil { t.Fatal("can't create eth service:", err) diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go index b8c7a0a20..db975586f 100644 --- a/eth/downloader/downloader.go +++ b/eth/downloader/downloader.go @@ -67,11 +67,9 @@ var ( reorgProtThreshold = 48 // Threshold number of recent blocks to disable mini reorg protection reorgProtHeaderDelay = 2 // Number of headers to delay delivering to cover mini reorgs - fsHeaderCheckFrequency = 100 // Verification frequency of the downloaded headers during fast sync - fsHeaderSafetyNet = 2048 // Number of headers to discard in case a chain violation is detected - fsHeaderForceVerify = 24 // Number of headers to verify before and after the pivot to accept it - fsHeaderContCheck = 3 * time.Second // Time interval to check for header continuations during state download - fsMinFullBlocks = 64 // Number of blocks to retrieve fully even in fast sync + fsHeaderSafetyNet = 2048 // Number of headers to discard in case a chain violation is detected + fsHeaderContCheck = 3 * time.Second // Time interval to check for header continuations during state download + fsMinFullBlocks = 64 // Number of blocks to retrieve fully even in fast sync ) var ( @@ -185,7 +183,7 @@ type LightChain interface { GetTd(common.Hash, uint64) *big.Int // InsertHeaderChain inserts a batch of headers into the local chain. - InsertHeaderChain([]*types.Header, int) (int, error) + InsertHeaderChain([]*types.Header) (int, error) // SetHead rewinds the local chain to a new head. SetHead(uint64) error @@ -1651,24 +1649,11 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error { // In case of header only syncing, validate the chunk immediately if mode == FastSync || mode == LightSync { - // If we're importing pure headers, verify based on their recentness - var pivot uint64 - - d.pivotLock.RLock() - if d.pivotHeader != nil { - pivot = d.pivotHeader.Number.Uint64() - } - d.pivotLock.RUnlock() - - frequency := fsHeaderCheckFrequency - if chunk[len(chunk)-1].Number.Uint64()+uint64(fsHeaderForceVerify) > pivot { - frequency = 1 - } - if n, err := d.lightchain.InsertHeaderChain(chunk, frequency); err != nil { + if n, err := d.lightchain.InsertHeaderChain(chunk); err != nil { rollbackErr = err // If some headers were inserted, track them as uncertain - if (mode == FastSync || frequency > 1) && n > 0 && rollback == 0 { + if (mode == FastSync) && n > 0 && rollback == 0 { rollback = chunk[0].Number.Uint64() } log.Warn("Invalid header encountered", "number", chunk[n].Number, "hash", chunk[n].Hash(), "parent", chunk[n].ParentHash, "err", err) diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go index f8adf49b8..e6ea03729 100644 --- a/eth/downloader/downloader_test.go +++ b/eth/downloader/downloader_test.go @@ -258,7 +258,7 @@ func (dl *downloadTester) getTd(hash common.Hash) *big.Int { } // InsertHeaderChain injects a new batch of headers into the simulated chain. -func (dl *downloadTester) InsertHeaderChain(headers []*types.Header, checkFreq int) (i int, err error) { +func (dl *downloadTester) InsertHeaderChain(headers []*types.Header) (i int, err error) { dl.lock.Lock() defer dl.lock.Unlock() // Do a quick check, as the blockchain.InsertHeaderChain doesn't insert anything in case of errors diff --git a/eth/ethconfig/config.go b/eth/ethconfig/config.go index 9f14ccd8d..bb764820e 100644 --- a/eth/ethconfig/config.go +++ b/eth/ethconfig/config.go @@ -19,10 +19,6 @@ package ethconfig import ( "math/big" - "os" - "os/user" - "path/filepath" - "runtime" "strings" "time" @@ -61,15 +57,6 @@ var Defaults = Config{ // Quorum - make full sync the default sync mode in quorum (as opposed to upstream geth) SyncMode: downloader.FullSync, // End Quorum - Ethash: ethash.Config{ - CacheDir: "ethash", - CachesInMem: 2, - CachesOnDisk: 3, - CachesLockMmap: false, - DatasetsInMem: 1, - DatasetsOnDisk: 2, - DatasetsLockMmap: false, - }, NetworkId: 1337, TxLookupLimit: 2350000, LightPeers: 100, @@ -91,27 +78,6 @@ var Defaults = Config{ Istanbul: *istanbul.DefaultConfig, // Quorum } -func init() { - home := os.Getenv("HOME") - if home == "" { - if user, err := user.Current(); err == nil { - home = user.HomeDir - } - } - if runtime.GOOS == "darwin" { - Defaults.Ethash.DatasetDir = filepath.Join(home, "Library", "Ethash") - } else if runtime.GOOS == "windows" { - localappdata := os.Getenv("LOCALAPPDATA") - if localappdata != "" { - Defaults.Ethash.DatasetDir = filepath.Join(localappdata, "Ethash") - } else { - Defaults.Ethash.DatasetDir = filepath.Join(home, "AppData", "Local", "Ethash") - } - } else { - Defaults.Ethash.DatasetDir = filepath.Join(home, ".ethash") - } -} - //go:generate gencodec -type Config -formats toml -out gen_config.go // Config contains configuration options for of the ETH and LES protocols. @@ -168,9 +134,6 @@ type Config struct { // Mining options Miner miner.Config - // Ethash options - Ethash ethash.Config - // Transaction pool options TxPool core.TxPoolConfig @@ -224,7 +187,7 @@ type Config struct { } // CreateConsensusEngine creates a consensus engine for the given chain configuration. -func CreateConsensusEngine(stack *node.Node, chainConfig *params.ChainConfig, config *Config, notify []string, noverify bool, db ethdb.Database) consensus.Engine { +func CreateConsensusEngine(stack *node.Node, chainConfig *params.ChainConfig, config *Config, db ethdb.Database) consensus.Engine { // If proof-of-authority is requested, set it up if chainConfig.Clique != nil { chainConfig.Clique.AllowedFutureBlockTime = config.Miner.AllowedFutureBlockTime //Quorum @@ -307,7 +270,7 @@ func CreateConsensusEngine(stack *node.Node, chainConfig *params.ChainConfig, co // the Ethereum service still needs a consensus engine, // use the consensus with the lightest overhead engine := ethash.NewFullFaker() - engine.SetThreads(-1) // Disable CPU Mining + return engine } diff --git a/eth/ethconfig/gen_config.go b/eth/ethconfig/gen_config.go index fd8bfe707..73b307b83 100644 --- a/eth/ethconfig/gen_config.go +++ b/eth/ethconfig/gen_config.go @@ -7,7 +7,6 @@ import ( "time" "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/consensus/ethash" "github.com/ethereum/go-ethereum/consensus/istanbul" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/eth/downloader" @@ -50,7 +49,6 @@ func (c Config) MarshalTOML() (interface{}, error) { SnapshotCache int Preimages bool Miner miner.Config - Ethash ethash.Config TxPool core.TxPoolConfig GPO gasprice.Config EnablePreimageRecording bool @@ -99,7 +97,6 @@ func (c Config) MarshalTOML() (interface{}, error) { enc.SnapshotCache = c.SnapshotCache enc.Preimages = c.Preimages enc.Miner = c.Miner - enc.Ethash = c.Ethash enc.TxPool = c.TxPool enc.GPO = c.GPO enc.EnablePreimageRecording = c.EnablePreimageRecording @@ -152,7 +149,6 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error { SnapshotCache *int Preimages *bool Miner *miner.Config - Ethash *ethash.Config TxPool *core.TxPoolConfig GPO *gasprice.Config EnablePreimageRecording *bool @@ -266,9 +262,6 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error { if dec.Miner != nil { c.Miner = *dec.Miner } - if dec.Ethash != nil { - c.Ethash = *dec.Ethash - } if dec.TxPool != nil { c.TxPool = *dec.TxPool } diff --git a/eth/handler.go b/eth/handler.go index 96124afb0..df8e08b96 100644 --- a/eth/handler.go +++ b/eth/handler.go @@ -244,7 +244,7 @@ func newHandler(config *handlerConfig) (*handler, error) { // Construct the fetcher (short sync) validator := func(header *types.Header) error { - return h.chain.Engine().VerifyHeader(h.chain, header, true) + return h.chain.Engine().VerifyHeader(h.chain, header) } heighter := func() uint64 { return h.chain.CurrentBlock().NumberU64() diff --git a/eth/handler_qlight_client.go b/eth/handler_qlight_client.go index bfedc3d23..70ef751c6 100644 --- a/eth/handler_qlight_client.go +++ b/eth/handler_qlight_client.go @@ -118,7 +118,7 @@ func newQLightClientHandler(config *handlerConfig) (*handler, error) { // Construct the fetcher (short sync) validator := func(header *types.Header) error { - return h.chain.Engine().VerifyHeader(h.chain, header, true) + return h.chain.Engine().VerifyHeader(h.chain, header) } heighter := func() uint64 { return h.chain.CurrentBlock().NumberU64() diff --git a/ethclient/ethclient_test.go b/ethclient/ethclient_test.go index 87993ccb5..fe157f685 100644 --- a/ethclient/ethclient_test.go +++ b/ethclient/ethclient_test.go @@ -199,7 +199,6 @@ func newTestBackend(t *testing.T) (*node.Node, []*types.Block) { } // Create Ethereum Service config := ðconfig.Config{Genesis: genesis} - config.Ethash.PowMode = ethash.ModeFake ethservice, err := eth.New(n, config) if err != nil { t.Fatalf("can't create new ethereum service: %v", err) diff --git a/graphql/graphql_test.go b/graphql/graphql_test.go index 54b98c254..252b8c298 100644 --- a/graphql/graphql_test.go +++ b/graphql/graphql_test.go @@ -259,9 +259,6 @@ func createGQLService(t *testing.T, stack *node.Node) { GasLimit: 11500000, Difficulty: big.NewInt(1048576), }, - Ethash: ethash.Config{ - PowMode: ethash.ModeFake, - }, NetworkId: 1337, TrieCleanCache: 5, TrieCleanCacheJournal: "triecache", @@ -315,9 +312,6 @@ func createGQLServiceWithTransactions(t *testing.T, stack *node.Node) { }, }, }, - Ethash: ethash.Config{ - PowMode: ethash.ModeFake, - }, NetworkId: 1337, TrieCleanCache: 5, TrieCleanCacheJournal: "triecache", diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go index b50874feb..304462500 100644 --- a/internal/ethapi/api.go +++ b/internal/ethapi/api.go @@ -40,7 +40,6 @@ import ( "github.com/ethereum/go-ethereum/common/hexutil" "github.com/ethereum/go-ethereum/common/math" "github.com/ethereum/go-ethereum/consensus/clique" - "github.com/ethereum/go-ethereum/consensus/ethash" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/mps" "github.com/ethereum/go-ethereum/core/state" @@ -2649,15 +2648,6 @@ func (api *PublicDebugAPI) PrintBlock(ctx context.Context, number uint64) (strin return spew.Sdump(block), nil } -// SeedHash retrieves the seed hash of a block. -func (api *PublicDebugAPI) SeedHash(ctx context.Context, number uint64) (string, error) { - block, _ := api.b.BlockByNumber(ctx, rpc.BlockNumber(number)) - if block == nil { - return "", fmt.Errorf("block #%d not found", number) - } - return fmt.Sprintf("0x%x", ethash.SeedHash(number)), nil -} - // PrivateDebugAPI is the collection of Ethereum APIs exposed over the private // debugging endpoint. type PrivateDebugAPI struct { diff --git a/les/api_test.go b/les/api_test.go index e3a21f00f..88a950afc 100644 --- a/les/api_test.go +++ b/les/api_test.go @@ -30,7 +30,6 @@ import ( "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/consensus/ethash" "github.com/ethereum/go-ethereum/eth" "github.com/ethereum/go-ethereum/eth/downloader" "github.com/ethereum/go-ethereum/eth/ethconfig" @@ -494,7 +493,6 @@ func testSim(t *testing.T, serverCount, clientCount int, serverDir, clientDir [] func newLesClientService(ctx *adapters.ServiceContext, stack *node.Node) (node.Lifecycle, error) { config := ethconfig.Defaults config.SyncMode = downloader.LightSync - config.Ethash.PowMode = ethash.ModeFake return New(stack, &config) } diff --git a/les/client.go b/les/client.go index 9a5b1ebc8..0e4b800bc 100644 --- a/les/client.go +++ b/les/client.go @@ -109,7 +109,7 @@ func New(stack *node.Node, config *ethconfig.Config) (*LightEthereum, error) { eventMux: stack.EventMux(), reqDist: newRequestDistributor(peers, &mclock.System{}), accountManager: stack.AccountManager(), - engine: ethconfig.CreateConsensusEngine(stack, chainConfig, config, nil, false, chainDb), + engine: ethconfig.CreateConsensusEngine(stack, chainConfig, config, chainDb), bloomRequests: make(chan chan *bloombits.Retrieval), bloomIndexer: core.NewBloomIndexer(chainDb, params.BloomBitsBlocksClient, params.HelperTrieConfirmations), p2pServer: stack.Server(), @@ -174,11 +174,6 @@ func New(stack *node.Node, config *ethconfig.Config) (*LightEthereum, error) { leth.ApiBackend.gpo = gasprice.NewOracle(leth.ApiBackend, gpoParams) leth.handler = newClientHandler(config.UltraLightServers, config.UltraLightFraction, checkpoint, leth) - if leth.handler.ulc != nil { - log.Warn("Ultra light client is enabled", "trustedNodes", len(leth.handler.ulc.keys), "minTrustedFraction", leth.handler.ulc.fraction) - leth.blockchain.DisableCheckFreq() - } - leth.netRPCService = ethapi.NewPublicNetAPI(leth.p2pServer, leth.config.NetworkId) // Register the backend on the node diff --git a/les/fetcher.go b/les/fetcher.go index 521798360..181a979d1 100644 --- a/les/fetcher.go +++ b/les/fetcher.go @@ -163,18 +163,11 @@ func newLightFetcher(chain *light.LightChain, engine consensus.Engine, peers *se // Construct the fetcher by offering all necessary APIs validator := func(header *types.Header) error { // Disable seal verification explicitly if we are running in ulc mode. - return engine.VerifyHeader(chain, header, ulc == nil) + return engine.VerifyHeader(chain, header) } heighter := func() uint64 { return chain.CurrentHeader().Number.Uint64() } dropper := func(id string) { peers.unregister(id) } - inserter := func(headers []*types.Header) (int, error) { - // Disable PoW checking explicitly if we are running in ulc mode. - checkFreq := 1 - if ulc != nil { - checkFreq = 0 - } - return chain.InsertHeaderChain(headers, checkFreq) - } + inserter := func(headers []*types.Header) (int, error) { return chain.InsertHeaderChain(headers) } f := &lightFetcher{ ulc: ulc, peerset: peers, diff --git a/light/lightchain.go b/light/lightchain.go index 7f4d968c6..7059f4ef3 100644 --- a/light/lightchain.go +++ b/light/lightchain.go @@ -72,9 +72,8 @@ type LightChain struct { wg sync.WaitGroup // Atomic boolean switches: - running int32 // whether LightChain is running or stopped - procInterrupt int32 // interrupts chain insert - disableCheckFreq int32 // disables header verification + running int32 // whether LightChain is running or stopped + procInterrupt int32 // interrupts chain insert // Quorum isMultitenant bool @@ -395,12 +394,9 @@ func (lc *LightChain) postChainEvents(events []interface{}) { // // In the case of a light chain, InsertHeaderChain also creates and posts light // chain events when necessary. -func (lc *LightChain) InsertHeaderChain(chain []*types.Header, checkFreq int) (int, error) { - if atomic.LoadInt32(&lc.disableCheckFreq) == 1 { - checkFreq = 0 - } +func (lc *LightChain) InsertHeaderChain(chain []*types.Header) (int, error) { start := time.Now() - if i, err := lc.hc.ValidateHeaderChain(chain, checkFreq); err != nil { + if i, err := lc.hc.ValidateHeaderChain(chain); err != nil { return i, err } @@ -588,16 +584,6 @@ func (lc *LightChain) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) return lc.scope.Track(new(event.Feed).Subscribe(ch)) } -// DisableCheckFreq disables header validation. This is used for ultralight mode. -func (lc *LightChain) DisableCheckFreq() { - atomic.StoreInt32(&lc.disableCheckFreq, 1) -} - -// EnableCheckFreq enables header validation. -func (lc *LightChain) EnableCheckFreq() { - atomic.StoreInt32(&lc.disableCheckFreq, 0) -} - func (lc *LightChain) SupportsMultitenancy(context.Context) (*proto.PreAuthenticatedAuthenticationToken, bool) { return nil, lc.isMultitenant } diff --git a/light/lightchain_test.go b/light/lightchain_test.go index 2aed08d74..2d1044825 100644 --- a/light/lightchain_test.go +++ b/light/lightchain_test.go @@ -64,7 +64,7 @@ func newCanonical(n int) (ethdb.Database, *LightChain, error) { } // Header-only chain requested headers := makeHeaderChain(genesis.Header(), n, db, canonicalSeed) - _, err := blockchain.InsertHeaderChain(headers, 1) + _, err := blockchain.InsertHeaderChain(headers) return db, blockchain, err } @@ -99,7 +99,7 @@ func testFork(t *testing.T, LightChain *LightChain, i, n int, comparator func(td } // Extend the newly created chain headerChainB := makeHeaderChain(LightChain2.CurrentHeader(), n, db, forkSeed) - if _, err := LightChain2.InsertHeaderChain(headerChainB, 1); err != nil { + if _, err := LightChain2.InsertHeaderChain(headerChainB); err != nil { t.Fatalf("failed to insert forking chain: %v", err) } // Sanity check that the forked chain can be imported into the original @@ -119,7 +119,7 @@ func testFork(t *testing.T, LightChain *LightChain, i, n int, comparator func(td func testHeaderChainImport(chain []*types.Header, lightchain *LightChain) error { for _, header := range chain { // Try and validate the header - if err := lightchain.engine.VerifyHeader(lightchain.hc, header, true); err != nil { + if err := lightchain.engine.VerifyHeader(lightchain.hc, header); err != nil { return err } // Manually insert the header into the database, but don't reorganize (allows subsequent testing) @@ -298,8 +298,8 @@ func testReorg(t *testing.T, first, second []int, td int64) { bc := newTestLightChain() // Insert an easy and a difficult chain afterwards - bc.InsertHeaderChain(makeHeaderChainWithDiff(bc.genesisBlock, first, 11), 1) - bc.InsertHeaderChain(makeHeaderChainWithDiff(bc.genesisBlock, second, 22), 1) + bc.InsertHeaderChain(makeHeaderChainWithDiff(bc.genesisBlock, first, 11)) + bc.InsertHeaderChain(makeHeaderChainWithDiff(bc.genesisBlock, second, 22)) // Check that the chain is valid number and link wise prev := bc.CurrentHeader() for header := bc.GetHeaderByNumber(bc.CurrentHeader().Number.Uint64() - 1); header.Number.Uint64() != 0; prev, header = header, bc.GetHeaderByNumber(header.Number.Uint64()-1) { @@ -322,7 +322,7 @@ func TestBadHeaderHashes(t *testing.T) { var err error headers := makeHeaderChainWithDiff(bc.genesisBlock, []int{1, 2, 4}, 10) core.BadHashes[headers[2].Hash()] = true - if _, err = bc.InsertHeaderChain(headers, 1); !errors.Is(err, core.ErrBlacklistedHash) { + if _, err = bc.InsertHeaderChain(headers); !errors.Is(err, core.ErrBlacklistedHash) { t.Errorf("error mismatch: have: %v, want %v", err, core.ErrBlacklistedHash) } } @@ -335,7 +335,7 @@ func TestReorgBadHeaderHashes(t *testing.T) { // Create a chain, import and ban afterwards headers := makeHeaderChainWithDiff(bc.genesisBlock, []int{1, 2, 3, 4}, 10) - if _, err := bc.InsertHeaderChain(headers, 1); err != nil { + if _, err := bc.InsertHeaderChain(headers); err != nil { t.Fatalf("failed to import headers: %v", err) } if bc.CurrentHeader().Hash() != headers[3].Hash() { diff --git a/light/odr_test.go b/light/odr_test.go index 5a1674f05..6ec08c9aa 100644 --- a/light/odr_test.go +++ b/light/odr_test.go @@ -273,7 +273,7 @@ func testChainOdr(t *testing.T, protocol int, fn odrTestFn) { for i, block := range gchain { headers[i] = block.Header() } - if _, err := lightchain.InsertHeaderChain(headers, 1); err != nil { + if _, err := lightchain.InsertHeaderChain(headers); err != nil { t.Fatal(err) } diff --git a/light/txpool_test.go b/light/txpool_test.go index f49b8423a..b817fff25 100644 --- a/light/txpool_test.go +++ b/light/txpool_test.go @@ -119,7 +119,7 @@ func TestTxPool(t *testing.T) { } } - if _, err := lightchain.InsertHeaderChain([]*types.Header{block.Header()}, 1); err != nil { + if _, err := lightchain.InsertHeaderChain([]*types.Header{block.Header()}); err != nil { panic(err) } diff --git a/miner/miner.go b/miner/miner.go index 46a60d51b..8710e0ee3 100644 --- a/miner/miner.go +++ b/miner/miner.go @@ -45,14 +45,11 @@ type Backend interface { // Config is the configuration parameters of mining. type Config struct { Etherbase common.Address `toml:",omitempty"` // Public address for block mining rewards (default = first account) - Notify []string `toml:",omitempty"` // HTTP URL list to be notified of new work packages (only useful in ethash). - NotifyFull bool `toml:",omitempty"` // Notify with pending block headers instead of work packages ExtraData hexutil.Bytes `toml:",omitempty"` // Block extra data set by the miner GasFloor uint64 // Target gas floor for mined blocks. GasCeil uint64 // Target gas ceiling for mined blocks. GasPrice *big.Int // Minimum gas price for mining a transaction Recommit time.Duration // The time interval for miner to re-create mining work. - Noverify bool // Disable remote mining solution verification(only useful in ethash). NewPayloadTimeout time.Duration // The maximum time allowance for creating a new payload // Quorum diff --git a/miner/stress_clique.go b/miner/stress_clique.go index 1a604e8e5..e6971ba71 100644 --- a/miner/stress_clique.go +++ b/miner/stress_clique.go @@ -98,7 +98,7 @@ func main() { // Iterate over all the nodes and start signing on them time.Sleep(3 * time.Second) for _, node := range nodes { - if err := node.StartMining(1); err != nil { + if err := node.StartMining(); err != nil { panic(err) } } diff --git a/miner/worker_test.go b/miner/worker_test.go index 1ca293b08..80f7cccb6 100644 --- a/miner/worker_test.go +++ b/miner/worker_test.go @@ -56,7 +56,6 @@ const ( var ( // Test chain configurations testTxPoolConfig core.TxPoolConfig - ethashChainConfig *params.ChainConfig cliqueChainConfig *params.ChainConfig // Test accounts @@ -81,7 +80,6 @@ var ( func init() { testTxPoolConfig = core.DefaultTxPoolConfig testTxPoolConfig.Journal = "" - ethashChainConfig = params.TestChainConfig cliqueChainConfig = params.TestChainConfig cliqueChainConfig.Clique = ¶ms.CliqueConfig{ Period: 10, @@ -207,10 +205,6 @@ func newTestWorker(t *testing.T, chainConfig *params.ChainConfig, engine consens return w, backend } -func TestGenerateBlockAndImportEthash(t *testing.T) { - testGenerateBlockAndImport(t, false) -} - func TestGenerateBlockAndImportClique(t *testing.T) { testGenerateBlockAndImport(t, true) } @@ -269,9 +263,6 @@ func testGenerateBlockAndImport(t *testing.T, isClique bool) { } } -func TestEmptyWorkEthash(t *testing.T) { - testEmptyWork(t, ethashChainConfig, ethash.NewFaker()) -} func TestEmptyWorkClique(t *testing.T) { testEmptyWork(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, rawdb.NewMemoryDatabase())) } @@ -321,61 +312,6 @@ func testEmptyWork(t *testing.T, chainConfig *params.ChainConfig, engine consens } } -func TestStreamUncleBlock(t *testing.T) { - ethash := ethash.NewFaker() - defer ethash.Close() - - w, b := newTestWorker(t, ethashChainConfig, ethash, rawdb.NewMemoryDatabase(), 1) - defer w.close() - - var taskCh = make(chan struct{}) - - taskIndex := 0 - w.newTaskHook = func(task *task) { - if task.block.NumberU64() == 2 { - // The first task is an empty task, the second - // one has 1 pending tx, the third one has 1 tx - // and 1 uncle. - if taskIndex == 2 { - have := task.block.Header().UncleHash - want := types.CalcUncleHash([]*types.Header{b.uncleBlock.Header()}) - if have != want { - t.Errorf("uncle hash mismatch: have %s, want %s", have.Hex(), want.Hex()) - } - } - taskCh <- struct{}{} - taskIndex += 1 - } - } - w.skipSealHook = func(task *task) bool { - return true - } - w.fullTaskHook = func() { - time.Sleep(100 * time.Millisecond) - } - w.start() - - for i := 0; i < 2; i += 1 { - select { - case <-taskCh: - case <-time.NewTimer(time.Second).C: - t.Error("new task timeout") - } - } - - w.postSideBlock(core.ChainSideEvent{Block: b.uncleBlock}) - - select { - case <-taskCh: - case <-time.NewTimer(time.Second).C: - t.Error("new task timeout") - } -} - -func TestRegenerateMiningBlockEthash(t *testing.T) { - testRegenerateMiningBlock(t, ethashChainConfig, ethash.NewFaker()) -} - func TestRegenerateMiningBlockClique(t *testing.T) { testRegenerateMiningBlock(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, rawdb.NewMemoryDatabase())) } @@ -432,10 +368,6 @@ func testRegenerateMiningBlock(t *testing.T, chainConfig *params.ChainConfig, en } } -func TestAdjustIntervalEthash(t *testing.T) { - testAdjustInterval(t, ethashChainConfig, ethash.NewFaker()) -} - func TestAdjustIntervalClique(t *testing.T) { testAdjustInterval(t, cliqueChainConfig, clique.New(cliqueChainConfig.Clique, rawdb.NewMemoryDatabase())) } diff --git a/permission/permission_test.go b/permission/permission_test.go index 6242adec8..ffd0f04a4 100644 --- a/permission/permission_test.go +++ b/permission/permission_test.go @@ -17,7 +17,6 @@ import ( "github.com/ethereum/go-ethereum/accounts/keystore" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/consensus/ethash" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/eth" @@ -127,9 +126,6 @@ func setup() { ethConf := ð.Config{ Genesis: &core.Genesis{Config: params.AllEthashProtocolChanges, GasLimit: 10000000000, Alloc: genesisAlloc}, Miner: miner.Config{Etherbase: guardianAddress}, - Ethash: ethash.Config{ - PowMode: ethash.ModeTest, - }, } _, err = eth.New(stack, ethConf) diff --git a/tests/block_test_util.go b/tests/block_test_util.go index 183f0f47e..27a3c6eae 100644 --- a/tests/block_test_util.go +++ b/tests/block_test_util.go @@ -28,7 +28,6 @@ import ( "github.com/ethereum/go-ethereum/common/hexutil" "github.com/ethereum/go-ethereum/common/math" "github.com/ethereum/go-ethereum/consensus" - "github.com/ethereum/go-ethereum/consensus/ethash" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/rawdb" "github.com/ethereum/go-ethereum/core/state" @@ -113,11 +112,6 @@ func (t *BlockTest) Run(snapshotter bool) error { return fmt.Errorf("genesis block state root does not match test: computed=%x, test=%x", gblock.Root().Bytes()[:6], t.json.Genesis.StateRoot[:6]) } var engine consensus.Engine - if t.json.SealEngine == "NoProof" { - engine = ethash.NewFaker() - } else { - engine = ethash.NewShared() - } cache := &core.CacheConfig{TrieCleanLimit: 0} if snapshotter { cache.SnapshotLimit = 1