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Merge pull request #2614 from fjl/bad-block-report

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eth: enable bad block reports
This commit is contained in:
Jeffrey Wilcke 2016-05-25 22:40:28 +02:00
commit a7434fd008
7 changed files with 104 additions and 87 deletions
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6
cmd/geth/main.go
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@ -244,6 +244,12 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Conso
// Start system runtime metrics collection
go metrics.CollectProcessMetrics(3 * time.Second)
// This should be the only place where reporting is enabled
// because it is not intended to run while testing.
// In addition to this check, bad block reports are sent only
// for chains with the main network genesis block and network id 1.
eth.EnableBadBlockReporting = true
utils.SetupNetwork(ctx)
// Deprecation warning.

72
core/bad_block.go
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@ -1,72 +0,0 @@
// Copyright 2015 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 <http://www.gnu.org/licenses/>.
package core
import (
"bytes"
"encoding/json"
"io/ioutil"
"net/http"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/rlp"
)
// DisabledBadBlockReporting can be set to prevent blocks being reported.
var DisableBadBlockReporting = true
// ReportBlock reports the block to the block reporting tool found at
// badblocks.ethdev.com
func ReportBlock(block *types.Block, err error) {
if DisableBadBlockReporting {
return
}
const url = "https://badblocks.ethdev.com"
blockRlp, _ := rlp.EncodeToBytes(block)
data := map[string]interface{}{
"block": common.Bytes2Hex(blockRlp),
"errortype": err.Error(),
"hints": map[string]interface{}{
"receipts": "NYI",
"vmtrace": "NYI",
},
}
jsonStr, _ := json.Marshal(map[string]interface{}{"method": "eth_badBlock", "params": []interface{}{data}, "id": "1", "jsonrpc": "2.0"})
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
glog.V(logger.Error).Infoln("POST err:", err)
return
}
defer resp.Body.Close()
if glog.V(logger.Debug) {
glog.Infoln("response Status:", resp.Status)
glog.Infoln("response Headers:", resp.Header)
body, _ := ioutil.ReadAll(resp.Body)
glog.Infoln("response Body:", string(body))
}
}

5
core/blockchain.go
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@ -1117,15 +1117,12 @@ func (self *BlockChain) update() {
}
}
// reportBlock reports the given block and error using the canonical block
// reporting tool. Reporting the block to the service is handled in a separate
// goroutine.
// reportBlock logs a bad block error.
func reportBlock(block *types.Block, err error) {
if glog.V(logger.Error) {
glog.Errorf("Bad block #%v (%s)\n", block.Number(), block.Hash().Hex())
glog.Errorf(" %v", err)
}
go ReportBlock(block, err)
}
// InsertHeaderChain attempts to insert the given header chain in to the local

6
core/types/block.go
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@ -141,8 +141,10 @@ type Block struct {
// of the chain up to and including the block.
td *big.Int
// ReceivedAt is used by package eth to track block propagation time.
ReceivedAt time.Time
// These fields are used by package eth to track
// inter-peer block relay.
ReceivedAt time.Time
ReceivedFrom interface{}
}
// DeprecatedTd is an old relic for extracting the TD of a block. It is in the

74
eth/bad_block.go Normal file
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@ -0,0 +1,74 @@
// Copyright 2015 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 <http://www.gnu.org/licenses/>.
package eth
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/rlp"
)
const (
// The Ethereum main network genesis block.
defaultGenesisHash = "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3"
badBlocksURL = "https://badblocks.ethdev.com"
)
var EnableBadBlockReporting = false
func sendBadBlockReport(block *types.Block, err error) {
if !EnableBadBlockReporting {
return
}
var (
blockRLP, _ = rlp.EncodeToBytes(block)
params = map[string]interface{}{
"block": common.Bytes2Hex(blockRLP),
"blockHash": block.Hash().Hex(),
"errortype": err.Error(),
"client": "go",
}
)
if !block.ReceivedAt.IsZero() {
params["receivedAt"] = block.ReceivedAt.UTC().String()
}
if p, ok := block.ReceivedFrom.(*peer); ok {
params["receivedFrom"] = map[string]interface{}{
"enode": fmt.Sprintf("enode://%x@%v", p.ID(), p.RemoteAddr()),
"name": p.Name(),
"protocolVersion": p.version,
}
}
jsonStr, _ := json.Marshal(map[string]interface{}{"method": "eth_badBlock", "id": "1", "jsonrpc": "2.0", "params": []interface{}{params}})
client := http.Client{Timeout: 8 * time.Second}
resp, err := client.Post(badBlocksURL, "application/json", bytes.NewReader(jsonStr))
if err != nil {
glog.V(logger.Debug).Infoln(err)
return
}
glog.V(logger.Debug).Infof("Bad Block Report posted (%d)", resp.StatusCode)
resp.Body.Close()
}

21
eth/handler.go
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@ -83,6 +83,8 @@ type ProtocolManager struct {
// wait group is used for graceful shutdowns during downloading
// and processing
wg sync.WaitGroup
badBlockReportingEnabled bool
}
// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
@ -150,7 +152,7 @@ func NewProtocolManager(config *core.ChainConfig, fastSync bool, networkId int,
// Construct the different synchronisation mechanisms
manager.downloader = downloader.New(chaindb, manager.eventMux, blockchain.HasHeader, blockchain.HasBlockAndState, blockchain.GetHeader,
blockchain.GetBlock, blockchain.CurrentHeader, blockchain.CurrentBlock, blockchain.CurrentFastBlock, blockchain.FastSyncCommitHead,
blockchain.GetTd, blockchain.InsertHeaderChain, blockchain.InsertChain, blockchain.InsertReceiptChain, blockchain.Rollback,
blockchain.GetTd, blockchain.InsertHeaderChain, manager.insertChain, blockchain.InsertReceiptChain, blockchain.Rollback,
manager.removePeer)
validator := func(block *types.Block, parent *types.Block) error {
@ -159,11 +161,24 @@ func NewProtocolManager(config *core.ChainConfig, fastSync bool, networkId int,
heighter := func() uint64 {
return blockchain.CurrentBlock().NumberU64()
}
manager.fetcher = fetcher.New(blockchain.GetBlock, validator, manager.BroadcastBlock, heighter, blockchain.InsertChain, manager.removePeer)
manager.fetcher = fetcher.New(blockchain.GetBlock, validator, manager.BroadcastBlock, heighter, manager.insertChain, manager.removePeer)
if blockchain.Genesis().Hash().Hex() == defaultGenesisHash && networkId == 1 {
glog.V(logger.Debug).Infoln("Bad Block Reporting is enabled")
manager.badBlockReportingEnabled = true
}
return manager, nil
}
func (pm *ProtocolManager) insertChain(blocks types.Blocks) (i int, err error) {
i, err = pm.blockchain.InsertChain(blocks)
if pm.badBlockReportingEnabled && core.IsValidationErr(err) && i < len(blocks) {
go sendBadBlockReport(blocks[i], err)
}
return i, err
}
func (pm *ProtocolManager) removePeer(id string) {
// Short circuit if the peer was already removed
peer := pm.peers.Peer(id)
@ -378,6 +393,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
// Update the receive timestamp of each block
for _, block := range blocks {
block.ReceivedAt = msg.ReceivedAt
block.ReceivedFrom = p
}
// Filter out any explicitly requested blocks, deliver the rest to the downloader
if blocks := pm.fetcher.FilterBlocks(blocks); len(blocks) > 0 {
@ -664,6 +680,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
return errResp(ErrDecode, "block validation %v: %v", msg, err)
}
request.Block.ReceivedAt = msg.ReceivedAt
request.Block.ReceivedFrom = p
// Mark the peer as owning the block and schedule it for import
p.MarkBlock(request.Block.Hash())

7
tests/init.go
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@ -25,8 +25,6 @@ import (
"net/http"
"os"
"path/filepath"
"github.com/ethereum/go-ethereum/core"
)
var (
@ -59,11 +57,6 @@ var (
VmSkipTests = []string{}
)
// Disable reporting bad blocks for the tests
func init() {
core.DisableBadBlockReporting = true
}
func readJson(reader io.Reader, value interface{}) error {
data, err := ioutil.ReadAll(reader)
if err != nil {