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discard channel updates too far in the future, or too close apart (see #6124)

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ThomasV
2020-05-10 12:16:16 +02:00
parent 1322fa6a08
commit ac67f7ae30
1 changed files with 3 additions and 1 deletions
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4
electrum/channel_db.py
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@@ -404,6 +404,8 @@ class ChannelDB(SqlDB):
timestamp = payload['timestamp'] timestamp = payload['timestamp']
if max_age and now - timestamp > max_age: if max_age and now - timestamp > max_age:
return UpdateStatus.EXPIRED return UpdateStatus.EXPIRED
if timestamp - now > 60:
return UpdateStatus.DEPRECATED
channel_info = self._channels.get(short_channel_id) channel_info = self._channels.get(short_channel_id)
if not channel_info: if not channel_info:
return UpdateStatus.ORPHANED return UpdateStatus.ORPHANED
@@ -417,7 +419,7 @@ class ChannelDB(SqlDB):
short_channel_id = ShortChannelID(payload['short_channel_id']) short_channel_id = ShortChannelID(payload['short_channel_id'])
key = (start_node, short_channel_id) key = (start_node, short_channel_id)
old_policy = self._policies.get(key) old_policy = self._policies.get(key)
if old_policy and timestamp <= old_policy.timestamp: if old_policy and timestamp <= old_policy.timestamp + 60:
return UpdateStatus.DEPRECATED return UpdateStatus.DEPRECATED
if verify: if verify:
self.verify_channel_update(payload) self.verify_channel_update(payload)