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lnworker: blacklist channel if policy is unchanged but has a new timestamp.

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This commit is contained in:
ThomasV 2020-04-24 12:16:21 +02:00
parent 2d0ef78a11
commit f4dc93cb7d
2 changed files with 39 additions and 13 deletions
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50
electrum/channel_db.py
View file

@ -201,12 +201,14 @@ class UpdateStatus(IntEnum):
ORPHANED = 0
EXPIRED = 1
DEPRECATED = 2
GOOD = 3
UNCHANGED = 3
GOOD = 4
class CategorizedChannelUpdates(NamedTuple):
orphaned: List # no channel announcement for channel update
expired: List # update older than two weeks
deprecated: List # update older than database entry
unchanged: List # unchanged policies
good: List # good updates
@ -362,22 +364,39 @@ class ChannelDB(SqlDB):
if 'raw' in msg:
self._db_save_channel(channel_info.short_channel_id, msg['raw'])
def print_change(self, old_policy: Policy, new_policy: Policy):
# print what changed between policies
def policy_changed(self, old_policy: Policy, new_policy: Policy, verbose: bool) -> bool:
changed = False
if old_policy.cltv_expiry_delta != new_policy.cltv_expiry_delta:
self.logger.info(f'cltv_expiry_delta: {old_policy.cltv_expiry_delta} -> {new_policy.cltv_expiry_delta}')
changed |= True
if verbose:
self.logger.info(f'cltv_expiry_delta: {old_policy.cltv_expiry_delta} -> {new_policy.cltv_expiry_delta}')
if old_policy.htlc_minimum_msat != new_policy.htlc_minimum_msat:
self.logger.info(f'htlc_minimum_msat: {old_policy.htlc_minimum_msat} -> {new_policy.htlc_minimum_msat}')
changed |= True
if verbose:
self.logger.info(f'htlc_minimum_msat: {old_policy.htlc_minimum_msat} -> {new_policy.htlc_minimum_msat}')
if old_policy.htlc_maximum_msat != new_policy.htlc_maximum_msat:
self.logger.info(f'htlc_maximum_msat: {old_policy.htlc_maximum_msat} -> {new_policy.htlc_maximum_msat}')
changed |= True
if verbose:
self.logger.info(f'htlc_maximum_msat: {old_policy.htlc_maximum_msat} -> {new_policy.htlc_maximum_msat}')
if old_policy.fee_base_msat != new_policy.fee_base_msat:
self.logger.info(f'fee_base_msat: {old_policy.fee_base_msat} -> {new_policy.fee_base_msat}')
changed |= True
if verbose:
self.logger.info(f'fee_base_msat: {old_policy.fee_base_msat} -> {new_policy.fee_base_msat}')
if old_policy.fee_proportional_millionths != new_policy.fee_proportional_millionths:
self.logger.info(f'fee_proportional_millionths: {old_policy.fee_proportional_millionths} -> {new_policy.fee_proportional_millionths}')
changed |= True
if verbose:
self.logger.info(f'fee_proportional_millionths: {old_policy.fee_proportional_millionths} -> {new_policy.fee_proportional_millionths}')
if old_policy.channel_flags != new_policy.channel_flags:
self.logger.info(f'channel_flags: {old_policy.channel_flags} -> {new_policy.channel_flags}')
changed |= True
if verbose:
self.logger.info(f'channel_flags: {old_policy.channel_flags} -> {new_policy.channel_flags}')
if old_policy.message_flags != new_policy.message_flags:
self.logger.info(f'message_flags: {old_policy.message_flags} -> {new_policy.message_flags}')
changed |= True
if verbose:
self.logger.info(f'message_flags: {old_policy.message_flags} -> {new_policy.message_flags}')
if not changed and verbose:
self.logger.info(f'policy unchanged: {old_policy.timestamp} -> {new_policy.timestamp}')
return changed
def add_channel_update(self, payload, max_age=None, verify=False, verbose=True):
now = int(time.time())
@ -408,14 +427,16 @@ class ChannelDB(SqlDB):
self._update_num_policies_for_chan(short_channel_id)
if 'raw' in payload:
self._db_save_policy(policy.key, payload['raw'])
if old_policy and verbose:
self.print_change(old_policy, policy)
return UpdateStatus.GOOD
if old_policy and not self.policy_changed(old_policy, policy, verbose):
return UpdateStatus.UNCHANGED
else:
return UpdateStatus.GOOD
def add_channel_updates(self, payloads, max_age=None) -> CategorizedChannelUpdates:
orphaned = []
expired = []
deprecated = []
unchanged = []
good = []
for payload in payloads:
r = self.add_channel_update(payload, max_age=max_age, verbose=False)
@ -425,6 +446,8 @@ class ChannelDB(SqlDB):
expired.append(payload)
elif r == UpdateStatus.DEPRECATED:
deprecated.append(payload)
elif r == UpdateStatus.UNCHANGED:
unchanged.append(payload)
elif r == UpdateStatus.GOOD:
good.append(payload)
self.update_counts()
@ -432,6 +455,7 @@ class ChannelDB(SqlDB):
orphaned=orphaned,
expired=expired,
deprecated=deprecated,
unchanged=unchanged,
good=good)

2
electrum/lnworker.py
View file

@ -947,6 +947,8 @@ class LNWallet(LNWorker):
elif r == UpdateStatus.DEPRECATED:
self.logger.info(f'channel update is not more recent.')
blacklist = True
elif r == UpdateStatus.UNCHANGED:
blacklist = True
else:
blacklist = True
return blacklist