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lnpeer: failed htlc error handling ignored length of channel_update

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SomberNight 2019-08-14 21:43:37 +02:00 • committed by ThomasV
parent d2d4d19fcb
commit 2e38bcf416
1 changed files with 8 additions and 7 deletions
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15
electrum/lnpeer.py
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@ -1059,16 +1059,17 @@ class Peer(Logger):
self.logger.info(f"error reported by {bh2u(route[sender_idx].node_id)}")
# handle some specific error codes
failure_codes = {
OnionFailureCode.TEMPORARY_CHANNEL_FAILURE: 2,
OnionFailureCode.AMOUNT_BELOW_MINIMUM: 10,
OnionFailureCode.FEE_INSUFFICIENT: 10,
OnionFailureCode.INCORRECT_CLTV_EXPIRY: 6,
OnionFailureCode.EXPIRY_TOO_SOON: 2,
OnionFailureCode.CHANNEL_DISABLED: 4,
OnionFailureCode.TEMPORARY_CHANNEL_FAILURE: 0,
OnionFailureCode.AMOUNT_BELOW_MINIMUM: 8,
OnionFailureCode.FEE_INSUFFICIENT: 8,
OnionFailureCode.INCORRECT_CLTV_EXPIRY: 4,
OnionFailureCode.EXPIRY_TOO_SOON: 0,
OnionFailureCode.CHANNEL_DISABLED: 2,
}
if code in failure_codes:
offset = failure_codes[code]
channel_update = (258).to_bytes(length=2, byteorder="big") + data[offset:]
channel_update_len = int.from_bytes(data[offset:offset+2], byteorder="big")
channel_update = (258).to_bytes(length=2, byteorder="big") + data[offset+2: offset+2+channel_update_len]
message_type, payload = decode_msg(channel_update)
payload['raw'] = channel_update
orphaned, expired, deprecated, good, to_delete = self.channel_db.add_channel_updates([payload])