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htlcswitch: change errors to warnings

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for issues caused by bogus incoming HTLC data
This commit is contained in:
Carsten Otto 2021-05-17 11:13:59 +01:00
parent 2ae82df2fa
commit 4b4d34fcce
2 changed files with 7 additions and 9 deletions
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14
htlcswitch/link.go
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@ -2217,7 +2217,7 @@ func (l *channelLink) CheckHtlcForward(payHash [32]byte,
// any case, we'll cancel this HTLC.
actualFee := incomingHtlcAmt - amtToForward
if incomingHtlcAmt < amtToForward || actualFee < expectedFee {
l.log.Errorf("outgoing htlc(%x) has insufficient fee: "+
l.log.Warnf("outgoing htlc(%x) has insufficient fee: "+
"expected %v, got %v",
payHash[:], int64(expectedFee), int64(actualFee))
@ -2239,7 +2239,7 @@ func (l *channelLink) CheckHtlcForward(payHash [32]byte,
// sender messed up, or an intermediate node tampered with the HTLC.
timeDelta := policy.TimeLockDelta
if incomingTimeout < outgoingTimeout+timeDelta {
l.log.Errorf("incoming htlc(%x) has incorrect time-lock value: "+
l.log.Warnf("incoming htlc(%x) has incorrect time-lock value: "+
"expected at least %v block delta, got %v block delta",
payHash[:], timeDelta, incomingTimeout-outgoingTimeout)
@ -2286,7 +2286,7 @@ func (l *channelLink) canSendHtlc(policy ForwardingPolicy,
// too small for the next hop. If so, then we'll cancel the HTLC
// directly.
if amt < policy.MinHTLCOut {
l.log.Errorf("outgoing htlc(%x) is too small: min_htlc=%v, "+
l.log.Warnf("outgoing htlc(%x) is too small: min_htlc=%v, "+
"htlc_value=%v", payHash[:], policy.MinHTLCOut,
amt)
@ -2305,7 +2305,7 @@ func (l *channelLink) canSendHtlc(policy ForwardingPolicy,
// Next, ensure that the passed HTLC isn't too large. If so, we'll
// cancel the HTLC directly.
if policy.MaxHTLC != 0 && amt > policy.MaxHTLC {
l.log.Errorf("outgoing htlc(%x) is too large: max_htlc=%v, "+
l.log.Warnf("outgoing htlc(%x) is too large: max_htlc=%v, "+
"htlc_value=%v", payHash[:], policy.MaxHTLC, amt)
// As part of the returned error, we'll send our latest routing
@ -2322,7 +2322,7 @@ func (l *channelLink) canSendHtlc(policy ForwardingPolicy,
// future, so we'll reject an HTLC if the outgoing expiration time is
// too close to the current height.
if timeout <= heightNow+l.cfg.OutgoingCltvRejectDelta {
l.log.Errorf("htlc(%x) has an expiry that's too soon: "+
l.log.Warnf("htlc(%x) has an expiry that's too soon: "+
"outgoing_expiry=%v, best_height=%v", payHash[:],
timeout, heightNow)
failure := l.createFailureWithUpdate(
@ -2335,7 +2335,7 @@ func (l *channelLink) canSendHtlc(policy ForwardingPolicy,
// Check absolute max delta.
if timeout > l.cfg.MaxOutgoingCltvExpiry+heightNow {
l.log.Errorf("outgoing htlc(%x) has a time lock too far in "+
l.log.Warnf("outgoing htlc(%x) has a time lock too far in "+
"the future: got %v, but maximum is %v", payHash[:],
timeout-heightNow, l.cfg.MaxOutgoingCltvExpiry)
@ -2344,7 +2344,7 @@ func (l *channelLink) canSendHtlc(policy ForwardingPolicy,
// Check to see if there is enough balance in this channel.
if amt > l.Bandwidth() {
l.log.Errorf("insufficient bandwidth to route htlc: %v is "+
l.log.Warnf("insufficient bandwidth to route htlc: %v is "+
"larger than %v", amt, l.Bandwidth())
failure := l.createFailureWithUpdate(
func(upd *lnwire.ChannelUpdate) lnwire.FailureMessage {

2
lntest/itest/log_error_whitelist.txt
View File

@ -109,8 +109,6 @@
<time> [ERR] HSWC: ChannelLink(<chan>): failing link: unable to synchronize channel states: unable to send chan sync message for ChannelPoint(<chan_point>): write tcp <ip>-><ip>: write: connection reset by peer with error: unable to resume channel, recovery required
<time> [ERR] HSWC: ChannelLink(<chan>): failing link: unable to update commitment: link shutting down with error: internal error
<time> [ERR] HSWC: ChannelLink(<chan>): link failed, exiting htlcManager
<time> [ERR] HSWC: ChannelLink(<chan>): outgoing htlc(<hex>) has insufficient fee: expected 575000, got 1075
<time> [ERR] HSWC: ChannelLink(<chan>): outgoing htlc(<hex>) is too small: min_htlc=<amt>, htlc_value=<amt>
<time> [ERR] HSWC: ChannelLink(<chan>): unable to cancel incoming HTLC for circuit-key=(Chan ID=<chan>, HTLC ID=0): HTLC with ID 0 has already been failed
<time> [ERR] HSWC: ChannelLink(<chan>): unable to decode onion hop iterator: TemporaryChannelFailure
<time> [ERR] HSWC: ChannelLink(<chan>): unable to update signals