highperfocused/lnd
1
0
Fork 0
mirror of https://github.com/lightningnetwork/lnd.git synced 2025-12-04 18:01:57 +01:00
Code Issues Packages Projects Releases Wiki Activity

routing: check pubkey when applying channel update

Browse Source
This commit is contained in:
eugene
2022-09-12 16:15:52 -04:00
committed by yyforyongyu
parent 14f45d0722
commit 64b608bce0
3 changed files with 51 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
routing/router.go
View File

@@ -2393,16 +2393,32 @@ func (r *ChannelRouter) extractChannelUpdate(
// applyChannelUpdate validates a channel update and if valid, applies it to the
// database. It returns a bool indicating whether the updates were successful.
func (r *ChannelRouter) applyChannelUpdate(msg *lnwire.ChannelUpdate,
pubKey *btcec.PublicKey) bool {
func (r *ChannelRouter) applyChannelUpdate(msg *lnwire.ChannelUpdate) bool {
ch, _, _, err := r.GetChannelByID(msg.ShortChannelID)
if err != nil {
log.Errorf("Unable to retrieve channel by id: %v", err)
return false
}
if err := ValidateChannelUpdateAnn(pubKey, ch.Capacity, msg); err != nil {
var pubKey *btcec.PublicKey
switch msg.ChannelFlags & lnwire.ChanUpdateDirection {
case 0:
pubKey, _ = ch.NodeKey1()
case 1:
pubKey, _ = ch.NodeKey2()
}
// Exit early if the pubkey cannot be decided.
if pubKey == nil {
log.Errorf("Unable to decide pubkey with ChannelFlags=%v",
msg.ChannelFlags)
return false
}
err = ValidateChannelUpdateAnn(pubKey, ch.Capacity, msg)
if err != nil {
log.Errorf("Unable to validate channel update: %v", err)
return false
}