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lnworker: check chain_hash when decoding channel update.

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ThomasV 2020-04-09 15:16:07 +02:00
parent 756c7db888
commit 5efaaa523a
1 changed files with 8 additions and 2 deletions
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10
electrum/lnworker.py
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@ -902,18 +902,24 @@ class LNWallet(LNWorker):
# we try decoding both ways here. # we try decoding both ways here.
try: try:
message_type, payload = decode_msg(channel_update_typed) message_type, payload = decode_msg(channel_update_typed)
assert payload['chain_hash'] == constants.net.rev_genesis_bytes()
payload['raw'] = channel_update_typed payload['raw'] = channel_update_typed
except: # FIXME: too broad except: # FIXME: too broad
message_type, payload = decode_msg(channel_update_as_received) message_type, payload = decode_msg(channel_update_as_received)
payload['raw'] = channel_update_as_received payload['raw'] = channel_update_as_received
# sanity check
if payload['chain_hash'] != constants.net.rev_genesis_bytes():
self.logger.info(f'could not decode channel_update for failed htlc: {channel_update_as_received.hex()}')
return True
categorized_chan_upds = self.channel_db.add_channel_updates([payload]) categorized_chan_upds = self.channel_db.add_channel_updates([payload])
blacklist = False blacklist = False
short_channel_id = ShortChannelID(payload['short_channel_id'])
if categorized_chan_upds.good: if categorized_chan_upds.good:
self.logger.info("applied channel update on our db") self.logger.info(f"applied channel update to {short_channel_id}")
peer.maybe_save_remote_update(payload) peer.maybe_save_remote_update(payload)
elif categorized_chan_upds.orphaned: elif categorized_chan_upds.orphaned:
# maybe it is a private channel (and data in invoice was outdated) # maybe it is a private channel (and data in invoice was outdated)
self.logger.info("maybe channel update is for private channel?") self.logger.info(f"Could not find {short_channel_id}. maybe update is for private channel?")
start_node_id = route[sender_idx].node_id start_node_id = route[sender_idx].node_id
self.channel_db.add_channel_update_for_private_channel(payload, start_node_id) self.channel_db.add_channel_update_for_private_channel(payload, start_node_id)
elif categorized_chan_upds.expired: elif categorized_chan_upds.expired: