AaronFiore/electrum
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ln feature bits: flatten namespaces, and impl feature deps and ctxs

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This implements:
- flat feature bits https://github.com/lightningnetwork/lightning-rfc/pull/666
- feature bit dependencies https://github.com/lightningnetwork/lightning-rfc/pull/719
This commit is contained in:
SomberNight
2020-03-16 22:07:00 +01:00
parent c69937395e
commit 6ba08cc8d4
7 changed files with 224 additions and 50 deletions
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22
electrum/lnworker.py
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@@ -52,10 +52,10 @@ from .lnutil import (Outpoint, LNPeerAddr,
generate_keypair, LnKeyFamily, LOCAL, REMOTE,
UnknownPaymentHash, MIN_FINAL_CLTV_EXPIRY_FOR_INVOICE,
NUM_MAX_EDGES_IN_PAYMENT_PATH, SENT, RECEIVED, HTLCOwner,
UpdateAddHtlc, Direction, LnLocalFeatures,
UpdateAddHtlc, Direction, LnFeatures,
ShortChannelID, PaymentAttemptLog, PaymentAttemptFailureDetails,
BarePaymentAttemptLog)
from .lnutil import ln_dummy_address, ln_compare_features
from .lnutil import ln_dummy_address, ln_compare_features, IncompatibleLightningFeatures
from .transaction import PartialTxOutput, PartialTransaction, PartialTxInput
from .lnonion import OnionFailureCode, process_onion_packet, OnionPacket
from .lnmsg import decode_msg
@@ -147,9 +147,9 @@ class LNWorker(Logger):
self.taskgroup = SilentTaskGroup()
# set some feature flags as baseline for both LNWallet and LNGossip
# note that e.g. DATA_LOSS_PROTECT is needed for LNGossip as many peers require it
self.localfeatures = LnLocalFeatures(0)
self.localfeatures |= LnLocalFeatures.OPTION_DATA_LOSS_PROTECT_OPT
self.localfeatures |= LnLocalFeatures.OPTION_STATIC_REMOTEKEY_OPT
self.features = LnFeatures(0)
self.features |= LnFeatures.OPTION_DATA_LOSS_PROTECT_OPT
self.features |= LnFeatures.OPTION_STATIC_REMOTEKEY_OPT
def channels_for_peer(self, node_id):
return {}
@@ -248,8 +248,8 @@ class LNWorker(Logger):
if not node:
return False
try:
ln_compare_features(self.localfeatures, node.features)
except ValueError:
ln_compare_features(self.features, node.features)
except IncompatibleLightningFeatures:
return False
#self.logger.info(f'is_good {peer.host}')
return True
@@ -366,8 +366,8 @@ class LNGossip(LNWorker):
node = BIP32Node.from_rootseed(seed, xtype='standard')
xprv = node.to_xprv()
super().__init__(xprv)
self.localfeatures |= LnLocalFeatures.GOSSIP_QUERIES_OPT
self.localfeatures |= LnLocalFeatures.GOSSIP_QUERIES_REQ
self.features |= LnFeatures.GOSSIP_QUERIES_OPT
self.features |= LnFeatures.GOSSIP_QUERIES_REQ
self.unknown_ids = set()
def start_network(self, network: 'Network'):
@@ -419,8 +419,8 @@ class LNWallet(LNWorker):
self.db = wallet.db
self.config = wallet.config
LNWorker.__init__(self, xprv)
self.localfeatures |= LnLocalFeatures.OPTION_DATA_LOSS_PROTECT_REQ
self.localfeatures |= LnLocalFeatures.OPTION_STATIC_REMOTEKEY_REQ
self.features |= LnFeatures.OPTION_DATA_LOSS_PROTECT_REQ
self.features |= LnFeatures.OPTION_STATIC_REMOTEKEY_REQ
self.payments = self.db.get_dict('lightning_payments') # RHASH -> amount, direction, is_paid
self.preimages = self.db.get_dict('lightning_preimages') # RHASH -> preimage
self.sweep_address = wallet.get_receiving_address()