/
verify_election_topology.go
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/
verify_election_topology.go
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// Copyright (c) 2018 The MATRIX Authors
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php
package reelection
import (
"github.com/MatrixAINetwork/go-matrix/baseinterface"
"github.com/MatrixAINetwork/go-matrix/common"
"github.com/MatrixAINetwork/go-matrix/core/state"
"github.com/MatrixAINetwork/go-matrix/core/types"
"github.com/MatrixAINetwork/go-matrix/log"
"github.com/MatrixAINetwork/go-matrix/mc"
"github.com/MatrixAINetwork/go-matrix/params/manparams"
"github.com/pkg/errors"
)
var (
errGetElection = errors.New("get election info err")
errElectionSize = errors.New("election count not match")
errElectionInfo = errors.New("election info not match")
errTopoSize = errors.New("topology count not match")
errTopoInfo = errors.New("topology info not match")
errTopNodeState = errors.New("cur top node consensus state not match")
errPrimaryNodeState = errors.New("primary node consensus state not match")
)
func (p *ReElection) VerifyElection(header *types.Header, state *state.StateDBManage) error {
info, err := p.GetElection(state, header.ParentHash)
if err != nil {
return errGetElection
}
electInfo := p.TransferToElectionStu(info)
if len(electInfo) != len(header.Elect) {
return errElectionSize
}
if len(electInfo) == 0 {
return nil
}
targetRlp := types.RlpHash(header.Elect)
selfRlp := types.RlpHash(electInfo)
if targetRlp != selfRlp {
return errElectionInfo
}
return nil
}
func (p *ReElection) VerifyNetTopology(version string, header *types.Header, onlineConsensusResults []*mc.HD_OnlineConsensusVoteResultMsg) error {
if header.NetTopology.Type == common.NetTopoTypeAll {
return p.verifyAllNetTopology(header)
}
return p.verifyChgNetTopology(version, header, onlineConsensusResults)
}
func (p *ReElection) VerifyVrf(header *types.Header) error {
preBlock := p.bc.GetBlockByHash(header.ParentHash)
if preBlock == nil {
return errors.New("获取父区块失败")
}
if preBlock.Header() == nil {
return errors.New("区块头为空")
}
vrfSignAccount, err := baseinterface.NewVrf().DecodeVrf(header, preBlock.Header())
if err != nil {
log.Error(Module, "DecodeVrf err", err)
return err
}
accountA0, _, err := p.bc.GetA0AccountFromAnyAccount(vrfSignAccount, header.ParentHash)
if err != nil {
log.Error(Module, "vrf 获取A0账户失败", err, "signAccount", vrfSignAccount.Hex())
return err
}
if accountA0 != header.Leader {
log.Error(Module, "vrf验证", "与leader不匹配", "accountA0", accountA0.Hex(), "leader", header.Leader.Hex())
return errors.New("公钥与leader账户不匹配")
}
return nil
}
func (p *ReElection) verifyAllNetTopology(header *types.Header) error {
info, err := p.GetNetTopologyAll(header.ParentHash)
if err != nil {
return err
}
netTopology := p.TransferToNetTopologyAllStu(info)
if len(netTopology.NetTopologyData) != len(header.NetTopology.NetTopologyData) {
return errTopoSize
}
targetRlp := types.RlpHash(&header.NetTopology)
selfRlp := types.RlpHash(netTopology)
if targetRlp != selfRlp {
return errTopoInfo
}
return nil
}
func (p *ReElection) verifyChgNetTopology(version string, header *types.Header, onlineConsensusResults []*mc.HD_OnlineConsensusVoteResultMsg) error {
if len(header.NetTopology.NetTopologyData) == 0 {
return nil
}
if manparams.VersionCmp(version, manparams.VersionGamma) >= 0 {
for _, item := range onlineConsensusResults {
if item.Req.Node == header.Leader {
log.Warn(Module, "verifyChgNetTopology", "leader出块共识中存在自己的下线共识", "leader", header.Leader.Hex())
return errors.New("节点下线共识中出现出块leader自己")
}
}
}
// get online and offline info from header and prev topology
offlineNodes, onlineNods := p.parseOnlineState(header)
//log.INFO(Module, "header.NetTop", header.NetTopology, "高度", header.Number.Uint64())
//log.INFO(Module, "offlineNodes", offlineNodes)
//log.INFO(Module, "onlineNods", onlineNods)
for _, node := range offlineNodes {
if err := p.checkConsensusResult(node, mc.OffLine, header, onlineConsensusResults); err != nil {
return err
}
}
for _, node := range onlineNods {
if err := p.checkConsensusResult(node, mc.OnLine, header, onlineConsensusResults); err != nil {
return err
}
}
// generate topology alter info
//log.INFO(Module, "p.number", header.Number.Uint64(), "offlineNodes", offlineNodes, "onlineNods", onlineNods)
alterInfo, err := p.GetTopoChange(header.ParentHash, offlineNodes, onlineNods)
//log.INFO(Module, "alterInfo", alterInfo, "err", err)
if err != nil {
return err
}
for _, value := range alterInfo {
log.Trace(Module, "alter-A", value.A, "position", value.Position)
}
// generate self net topology
netTopology := p.TransferToNetTopologyChgStu(alterInfo)
if len(netTopology.NetTopologyData) != len(header.NetTopology.NetTopologyData) {
return errTopoSize
}
targetRlp := types.RlpHash(&header.NetTopology)
selfRlp := types.RlpHash(netTopology)
if targetRlp != selfRlp {
return errTopoInfo
}
return nil
}
func (p *ReElection) checkConsensusResult(node common.Address, state mc.OnlineState, header *types.Header, resultList []*mc.HD_OnlineConsensusVoteResultMsg) error {
conResult := findResultInList(node, resultList)
if conResult == nil {
log.Error(Module, "检查拓扑变化消息", "online共识结果未找到", "node", node.Hex())
return errors.New("online共识结果未找到")
}
if conResult.Req.OnlineState != state {
log.Error(Module, "检查拓扑变化消息", "共识结果的状态不匹配", "node", node.Hex(), "结果状态", conResult.Req.OnlineState.String(), "头中状态", state.String())
return errors.New("online共识结果未找到")
}
if conResult.IsValidity(header.Number.Uint64(), manparams.OnlineConsensusValidityTime) == false {
log.Error(Module, "检查拓扑变化消息", "online共识结果过期", "result.Number", conResult.Req.Number, "curNumber", header.Number.Uint64(), "node", node.Hex())
return errors.New("online共识结果过期")
}
reqHash := types.RlpHash(conResult.Req)
blockHash, err := p.bc.GetAncestorHash(header.ParentHash, conResult.Req.Number-1)
if err != nil {
log.Error(Module, "检查拓扑变化消息", "online共识结果验证区块hash获取失败", "err", err, "node", node.Hex())
return errors.New("online共识结果验证区块hash获取失败")
}
_, err = p.bc.DPOSEngine(header.Version).VerifyHashWithBlock(p.bc, reqHash, conResult.SignList, blockHash)
if err != nil {
log.Error(Module, "检查拓扑变化消息", "online共识结果POS失败", "node", node.Hex(), "err", err)
return err
}
return nil
}
func (p *ReElection) parseOnlineState(header *types.Header) ([]common.Address, []common.Address) {
if header.NetTopology.Type != common.NetTopoTypeChange {
return nil, nil
}
online := make([]common.Address, 0)
offline := make([]common.Address, 0)
for _, v := range header.NetTopology.NetTopologyData {
if v.Position == common.PosOffline {
offline = append(offline, v.Account)
continue
}
if v.Position == common.PosOnline {
online = append(online, v.Account)
continue
}
}
return offline, online
}
func findResultInList(node common.Address, resultList []*mc.HD_OnlineConsensusVoteResultMsg) *mc.HD_OnlineConsensusVoteResultMsg {
if len(resultList) == 0 {
return nil
}
for i := 0; i < len(resultList); i++ {
result := resultList[i]
if nil == result || nil == result.Req {
continue
}
if result.Req.Node == node {
return result
}
}
return nil
}