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consensus: check both vote orderings for dupeout txs

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This commit is contained in:
Ethan Buchman 2015-03-16 17:53:36 -07:00 committed by Jae Kwon
parent 33f8943543
commit f55609a792
1 changed files with 2 additions and 0 deletions
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2
state/state.go
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@ -390,6 +390,8 @@ func (s *State) ExecTx(tx_ blk.Tx) error {
if tx.VoteA.Type == blk.VoteTypeCommit && tx.VoteA.Round < tx.VoteB.Round {
// Check special case (not an error, validator must be slashed!)
// Validators should not sign another vote after committing.
} else if tx.VoteB.Type == blk.VoteTypeCommit && tx.VoteB.Round < tx.VoteA.Round {
// We need to check both orderings of the votes
} else {
if tx.VoteA.Round != tx.VoteB.Round {
return errors.New("DupeoutTx rounds don't match")