Merge branch 'cal/vote-extensions-1' into cal/vote-extensions-2

evidence/reactor.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/cosmos/gogoproto/proto"
 	clist "github.com/tendermint/tendermint/libs/clist"
 	"github.com/tendermint/tendermint/libs/log"
 	"github.com/tendermint/tendermint/p2p"
@@ -55,6 +56,7 @@ func (evR *Reactor) GetChannels() []*p2p.ChannelDescriptor {
 			ID:                  EvidenceChannel,
 			Priority:            6,
 			RecvMessageCapacity: maxMsgSize,
+			MessageType:         &tmproto.EvidenceList{},
 		},
 	}
 }
@@ -66,11 +68,11 @@ func (evR *Reactor) AddPeer(peer p2p.Peer) {
 
 // Receive implements Reactor.
 // It adds any received evidence to the evpool.
-func (evR *Reactor) Receive(chID byte, src p2p.Peer, msgBytes []byte) {
-	evis, err := decodeMsg(msgBytes)
+func (evR *Reactor) Receive(e p2p.Envelope) {
+	evis, err := evidenceListFromProto(e.Message)
 	if err != nil {
-		evR.Logger.Error("Error decoding message", "src", src, "chId", chID, "err", err)
-		evR.Switch.StopPeerForError(src, err)
+		evR.Logger.Error("Error decoding message", "src", e.Src, "chId", e.ChannelID, "err", err)
+		evR.Switch.StopPeerForError(e.Src, err)
 		return
 	}
 
@@ -80,7 +82,7 @@ func (evR *Reactor) Receive(chID byte, src p2p.Peer, msgBytes []byte) {
 		case *types.ErrInvalidEvidence:
 			evR.Logger.Error(err.Error())
 			// punish peer
-			evR.Switch.StopPeerForError(src, err)
+			evR.Switch.StopPeerForError(e.Src, err)
 			return
 		case nil:
 		default:
@@ -126,11 +128,15 @@ func (evR *Reactor) broadcastEvidenceRoutine(peer p2p.Peer) {
 		evis := evR.prepareEvidenceMessage(peer, ev)
 		if len(evis) > 0 {
 			evR.Logger.Debug("Gossiping evidence to peer", "ev", ev, "peer", peer)
-			msgBytes, err := encodeMsg(evis)
+			evp, err := evidenceListToProto(evis)
 			if err != nil {
 				panic(err)
 			}
-			success := peer.Send(EvidenceChannel, msgBytes)
+
+			success := peer.Send(p2p.Envelope{
+				ChannelID: EvidenceChannel,
+				Message:   evp,
+			})
 			if !success {
 				time.Sleep(peerRetryMessageIntervalMS * time.Millisecond)
 				continue
@@ -210,7 +216,7 @@ type PeerState interface {
 
 // encodemsg takes a array of evidence
 // returns the byte encoding of the List Message
-func encodeMsg(evis []types.Evidence) ([]byte, error) {
+func evidenceListToProto(evis []types.Evidence) (*tmproto.EvidenceList, error) {
 	evi := make([]tmproto.Evidence, len(evis))
 	for i := 0; i < len(evis); i++ {
 		ev, err := types.EvidenceToProto(evis[i])
@@ -222,19 +228,13 @@ func encodeMsg(evis []types.Evidence) ([]byte, error) {
 	epl := tmproto.EvidenceList{
 		Evidence: evi,
 	}
-
-	return epl.Marshal()
+	return &epl, nil
 }
 
-// decodemsg takes an array of bytes
-// returns an array of evidence
-func decodeMsg(bz []byte) (evis []types.Evidence, err error) {
-	lm := tmproto.EvidenceList{}
-	if err := lm.Unmarshal(bz); err != nil {
-		return nil, err
-	}
+func evidenceListFromProto(m proto.Message) ([]types.Evidence, error) {
+	lm := m.(*tmproto.EvidenceList)
 
-	evis = make([]types.Evidence, len(lm.Evidence))
+	evis := make([]types.Evidence, len(lm.Evidence))
 	for i := 0; i < len(lm.Evidence); i++ {
 		ev, err := types.EvidenceFromProto(&lm.Evidence[i])
 		if err != nil {

evidence/reactor_test.go

@@ -208,7 +208,10 @@ func TestReactorBroadcastEvidenceMemoryLeak(t *testing.T) {
 	// i.e. broadcastEvidenceRoutine finishes when peer is stopped
 	defer leaktest.CheckTimeout(t, 10*time.Second)()
 
-	p.On("Send", evidence.EvidenceChannel, mock.AnythingOfType("[]uint8")).Return(false)
+	p.On("Send", mock.MatchedBy(func(i interface{}) bool {
+		e, ok := i.(p2p.Envelope)
+		return ok && e.ChannelID == evidence.EvidenceChannel
+	})).Return(false)
 	quitChan := make(<-chan struct{})
 	p.On("Quit").Return(quitChan)
 	ps := peerState{2}

evidence/verify.go

@@ -21,7 +21,6 @@ func (evpool *Pool) verify(evidence types.Evidence) error {
 		state          = evpool.State()
 		height         = state.LastBlockHeight
 		evidenceParams = state.ConsensusParams.Evidence
-		ageNumBlocks   = height - evidence.Height()
 	)
 
 	// verify the time of the evidence
@@ -34,10 +33,9 @@ func (evpool *Pool) verify(evidence types.Evidence) error {
 		return fmt.Errorf("evidence has a different time to the block it is associated with (%v != %v)",
 			evidence.Time(), evTime)
 	}
-	ageDuration := state.LastBlockTime.Sub(evTime)
 
-	// check that the evidence hasn't expired
-	if ageDuration > evidenceParams.MaxAgeDuration && ageNumBlocks > evidenceParams.MaxAgeNumBlocks {
+	// checking if evidence is expired calculated using the block evidence time and height
+	if IsEvidenceExpired(height, state.LastBlockTime, evidence.Height(), evTime, evidenceParams) {
 		return fmt.Errorf(
 			"evidence from height %d (created at: %v) is too old; min height is %d and evidence can not be older than %v",
 			evidence.Height(),
@@ -284,3 +282,14 @@ func getSignedHeader(blockStore BlockStore, height int64) (*types.SignedHeader,
 		Commit: commit,
 	}, nil
 }
+
+// check that the evidence hasn't expired
+func IsEvidenceExpired(heightNow int64, timeNow time.Time, heightEv int64, timeEv time.Time, evidenceParams types.EvidenceParams) bool {
+	ageDuration := timeNow.Sub(timeEv)
+	ageNumBlocks := heightNow - heightEv
+
+	if ageDuration > evidenceParams.MaxAgeDuration && ageNumBlocks > evidenceParams.MaxAgeNumBlocks {
+		return true
+	}
+	return false
+}