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verify_state.go
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verify_state.go
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package activation
import (
"context"
"fmt"
"time"
"go.uber.org/zap"
awire "github.com/spacemeshos/go-spacemesh/activation/wire"
"github.com/spacemeshos/go-spacemesh/codec"
"github.com/spacemeshos/go-spacemesh/log"
"github.com/spacemeshos/go-spacemesh/malfeasance/wire"
"github.com/spacemeshos/go-spacemesh/sql"
"github.com/spacemeshos/go-spacemesh/sql/atxs"
"github.com/spacemeshos/go-spacemesh/sql/identities"
)
func CheckPrevATXs(ctx context.Context, logger *zap.Logger, db sql.Executor) error {
collisions, err := atxs.PrevATXCollisions(db)
if err != nil {
return fmt.Errorf("get prev ATX collisions: %w", err)
}
logger.Info("found ATX collisions", zap.Int("count", len(collisions)))
count := 0
for _, collision := range collisions {
select {
case <-ctx.Done():
// stop on context cancellation
return ctx.Err()
default:
}
if collision.NodeID1 != collision.NodeID2 {
logger.Panic(
"unexpected collision",
log.ZShortStringer("NodeID1", collision.NodeID1),
log.ZShortStringer("NodeID2", collision.NodeID2),
log.ZShortStringer("ATX1", collision.ATX1),
log.ZShortStringer("ATX2", collision.ATX2),
)
}
malicious, err := identities.IsMalicious(db, collision.NodeID1)
if err != nil {
return fmt.Errorf("get malicious status: %w", err)
}
if malicious {
// already malicious no need to generate proof
continue
}
var blob sql.Blob
var atx1 awire.ActivationTxV1
if err := atxs.LoadBlob(ctx, db, collision.ATX1.Bytes(), &blob); err != nil {
return fmt.Errorf("get blob %s: %w", collision.ATX1.ShortString(), err)
}
codec.MustDecode(blob.Bytes, &atx1)
var atx2 awire.ActivationTxV1
if err := atxs.LoadBlob(ctx, db, collision.ATX2.Bytes(), &blob); err != nil {
return fmt.Errorf("get blob %s: %w", collision.ATX2.ShortString(), err)
}
codec.MustDecode(blob.Bytes, &atx2)
proof := &wire.MalfeasanceProof{
Layer: atx1.Publish.FirstLayer(),
Proof: wire.Proof{
Type: wire.InvalidPrevATX,
Data: &wire.InvalidPrevATXProof{
Atx1: atx1,
Atx2: atx2,
},
},
}
encodedProof := codec.MustEncode(proof)
if err := identities.SetMalicious(db, collision.NodeID1, encodedProof, time.Now()); err != nil {
return fmt.Errorf("add malfeasance proof: %w", err)
}
count++
}
logger.Info("created malfeasance proofs", zap.Int("count", count))
return nil
}