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on_commitment_signed: distinguish between exceptions

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This commit is contained in:
ThomasV 2019-06-07 12:24:46 +02:00
parent 0913194a53
commit 9eddb9844c
1 changed files with 6 additions and 4 deletions
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10
electrum/lnpeer.py
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@ -1097,12 +1097,14 @@ class Peer(Logger):
self.logger.info("on_commitment_signed")
channel_id = payload['channel_id']
chan = self.channels[channel_id]
ctn_to_recv = chan.get_current_ctn(LOCAL) + 1
# make sure there were changes to the ctx, otherwise the remote peer is misbehaving
if (chan.hm.pending_htlcs(LOCAL) == chan.hm.current_htlcs(LOCAL)
and chan.pending_feerate(LOCAL) == chan.constraints.feerate) \
or ctn_to_recv == self.recv_commitment_for_ctn_last[chan]:
raise RemoteMisbehaving('received commitment_signed without any change')
and chan.pending_feerate(LOCAL) == chan.constraints.feerate):
raise RemoteMisbehaving('received commitment_signed without pending changes')
# make sure ctn is new
ctn_to_recv = chan.get_current_ctn(LOCAL) + 1
if ctn_to_recv == self.recv_commitment_for_ctn_last[chan]:
raise RemoteMisbehaving('received commitment_signed with same ctn')
self.recv_commitment_for_ctn_last[chan] = ctn_to_recv
data = payload["htlc_signature"]