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discovery: make sure ChannelUpdates always have incremented timestamp

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This commit ensures that we always increment the timestamp of
ChannelUpdates we send telling the network about changes to
our channel policy. We do this because it could happen
(especially during tests) that we issued an update, but the
ChannelUpdate would have the same timestamp as our last
ChannelUpdate, and would be ignored by the network.
This commit is contained in:
Johan T. Halseth 2017-12-20 14:02:04 +01:00
parent 43d7dd3d99
commit 483abbee5b
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GPG Key ID: 15BAADA29DA20D26
1 changed files with 8 additions and 2 deletions
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10
discovery/gossiper.go
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@ -1986,12 +1986,18 @@ func (d *AuthenticatedGossiper) sendAnnSigReliably(
func (d *AuthenticatedGossiper) updateChannel(info *channeldb.ChannelEdgeInfo,
edge *channeldb.ChannelEdgePolicy) (*lnwire.ChannelAnnouncement, *lnwire.ChannelUpdate, error) {
edge.LastUpdate = time.Now()
// Make sure timestamp is always increased, such that our update
// gets propagated.
timestamp := time.Now().Unix()
if timestamp <= edge.LastUpdate.Unix() {
timestamp = edge.LastUpdate.Unix() + 1
}
edge.LastUpdate = time.Unix(timestamp, 0)
chanUpdate := &lnwire.ChannelUpdate{
Signature: edge.Signature,
ChainHash: info.ChainHash,
ShortChannelID: lnwire.NewShortChanIDFromInt(edge.ChannelID),
Timestamp: uint32(edge.LastUpdate.Unix()),
Timestamp: uint32(timestamp),
Flags: edge.Flags,
TimeLockDelta: edge.TimeLockDelta,
HtlcMinimumMsat: edge.MinHTLC,