AaronFiore/electrum
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implement data_loss_protect

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so that we can spend their_ctx_to_remote even when we lost our state
but have an old backup
This commit is contained in:
SomberNight
2019-08-02 18:04:13 +02:00
committed by ThomasV
parent fdf8d8609b
commit 944e4f0ba0
3 changed files with 45 additions and 9 deletions
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5
electrum/lnsweep.py
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@@ -245,7 +245,7 @@ def create_sweeptxs_for_our_ctx(chan: 'Channel', ctx: Transaction, ctn: int,
create_txns_for_htlc(htlc, is_received_htlc=True)
return txs
def analyze_ctx(chan, ctx):
def analyze_ctx(chan: 'Channel', ctx: Transaction):
# note: the remote sometimes has two valid non-revoked commitment transactions,
# either of which could be broadcast (their_conf.ctn, their_conf.ctn+1)
our_conf, their_conf = get_ordered_channel_configs(chan=chan, for_us=True)
@@ -265,6 +265,9 @@ def analyze_ctx(chan, ctx):
their_pcp = ecc.ECPrivkey(per_commitment_secret).get_public_key_bytes(compressed=True)
is_revocation = True
#_logger.info(f'tx for revoked: {list(txs.keys())}')
elif ctn in chan.data_loss_protect_remote_pcp:
their_pcp = chan.data_loss_protect_remote_pcp[ctn]
is_revocation = False
else:
return
return ctn, their_pcp, is_revocation, per_commitment_secret