add mismatch genesis peer reporting

ChainSafe · Feb 2, 2022 · 14d02de · 14d02de
1 parent a494c25
commit 14d02de
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Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/dot/network/block_announce.go b/dot/network/block_announce.go
@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"math/big"
 
+	"github.com/ChainSafe/gossamer/dot/peerset"
 	"github.com/ChainSafe/gossamer/dot/types"
 	"github.com/ChainSafe/gossamer/lib/common"
 	"github.com/ChainSafe/gossamer/pkg/scale"
@@ -176,6 +177,10 @@ func (s *Service) validateBlockAnnounceHandshake(from peer.ID, hs Handshake) err
 	}
 
 	if bhs.GenesisHash != s.blockState.GenesisHash() {
+		s.host.cm.peerSetHandler.ReportPeer(peerset.ReputationChange{
+			Value:  peerset.GenesisMismatch,
+			Reason: peerset.GenesisMismatchReason,
+		}, from)
 		return errors.New("genesis hash mismatch")
 	}
 

diff --git a/dot/peerset/constants.go b/dot/peerset/constants.go
@@ -62,4 +62,9 @@ const (
 	BadJustificationValue Reputation = -(1 << 16)
 	// BadJustificationReason is used when peer send invalid justification.
 	BadJustificationReason = "Bad justification"
+
+	// GenesisMismatch is used when peer has a different genesis
+	GenesisMismatch Reputation = math.MinInt32
+	// GenesisMismatchReason used when a peer has a different genesis
+	GenesisMismatchReason = "Genesis mismatch"
 )