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routing: add rejected spent outputs to the reject cache

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This commit is contained in:
Olaoluwa Osuntokun 2018-03-23 15:50:21 -07:00
parent e7d66e1dfd
commit 635780858e
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GPG Key ID: 964EA263DD637C21
1 changed files with 20 additions and 2 deletions
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22
routing/router.go
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@ -957,6 +957,10 @@ func (r *ChannelRouter) processUpdate(msg interface{}) error {
channelID := lnwire.NewShortChanIDFromInt(msg.ChannelID)
fundingPoint, err := r.fetchChanPoint(&channelID)
if err != nil {
r.rejectMtx.Lock()
r.rejectCache[msg.ChannelID] = struct{}{}
r.rejectMtx.Unlock()
return errors.Errorf("unable to fetch chan point for "+
"chan_id=%v: %v", msg.ChannelID, err)
}
@ -964,9 +968,14 @@ func (r *ChannelRouter) processUpdate(msg interface{}) error {
// Now that we have the funding outpoint of the channel, ensure
// that it hasn't yet been spent. If so, then this channel has
// been closed so we'll ignore it.
chanUtxo, err := r.cfg.Chain.GetUtxo(fundingPoint,
channelID.BlockHeight)
chanUtxo, err := r.cfg.Chain.GetUtxo(
fundingPoint, channelID.BlockHeight,
)
if err != nil {
r.rejectMtx.Lock()
r.rejectCache[msg.ChannelID] = struct{}{}
r.rejectMtx.Unlock()
return errors.Errorf("unable to fetch utxo for "+
"chan_id=%v, chan_point=%v: %v", msg.ChannelID,
fundingPoint, err)
@ -1061,6 +1070,7 @@ func (r *ChannelRouter) processUpdate(msg interface{}) error {
case msg.Flags&lnwire.ChanUpdateDirection == 0:
if edge1Timestamp.After(msg.LastUpdate) ||
edge1Timestamp.Equal(msg.LastUpdate) {
return newErrf(ErrIgnored, "Ignoring update "+
"(flags=%v) for known chan_id=%v", msg.Flags,
msg.ChannelID)
@ -1085,6 +1095,10 @@ func (r *ChannelRouter) processUpdate(msg interface{}) error {
// querying the utxo-set for its existence.
chanPoint, err := r.fetchChanPoint(&channelID)
if err != nil {
r.rejectMtx.Lock()
r.rejectCache[msg.ChannelID] = struct{}{}
r.rejectMtx.Unlock()
return errors.Errorf("unable to fetch chan "+
"point for chan_id=%v: %v",
msg.ChannelID, err)
@ -1093,6 +1107,10 @@ func (r *ChannelRouter) processUpdate(msg interface{}) error {
chanPoint, channelID.BlockHeight,
)
if err != nil {
r.rejectMtx.Lock()
r.rejectCache[msg.ChannelID] = struct{}{}
r.rejectMtx.Unlock()
return errors.Errorf("unable to fetch utxo for "+
"chan_id=%v: %v", msg.ChannelID, err)
}