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lnworker: use MIN_FUNDING_SAT as lower bound for channel open

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This commit is contained in:
Sander van Grieken
2025-04-07 13:09:09 +02:00
parent 746c13b32d
commit f751a77a65
1 changed files with 4 additions and 4 deletions
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8
electrum/lnworker.py
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@@ -62,7 +62,7 @@ from .lnutil import (
LnKeyFamily, LOCAL, REMOTE, MIN_FINAL_CLTV_DELTA_FOR_INVOICE, SENT, RECEIVED, HTLCOwner, UpdateAddHtlc, LnFeatures,
ShortChannelID, HtlcLog, NoPathFound, InvalidGossipMsg, FeeBudgetExceeded, ImportedChannelBackupStorage,
OnchainChannelBackupStorage, ln_compare_features, IncompatibleLightningFeatures, PaymentFeeBudget,
NBLOCK_CLTV_DELTA_TOO_FAR_INTO_FUTURE, GossipForwardingMessage
NBLOCK_CLTV_DELTA_TOO_FAR_INTO_FUTURE, GossipForwardingMessage, MIN_FUNDING_SAT
)
from .lnonion import decode_onion_error, OnionFailureCode, OnionRoutingFailure, OnionPacket
from .lnmsg import decode_msg
@@ -1433,13 +1433,13 @@ class LNWallet(LNWorker):
tx.locktime = get_locktime_for_new_transaction(self.network, include_random_component=False)
return tx
def suggest_funding_amount(self, amount_to_pay, coins):
def suggest_funding_amount(self, amount_to_pay, coins) -> Tuple[int, int] | None:
""" whether we can pay amount_sat after opening a new channel"""
num_sats_can_send = int(self.num_sats_can_send())
lightning_needed = amount_to_pay - num_sats_can_send
assert lightning_needed > 0
min_funding_sat = lightning_needed + (lightning_needed // 20) + 1000 # safety margin
min_funding_sat = max(min_funding_sat, 100_000) # at least 1mBTC
min_funding_sat = lightning_needed + (lightning_needed // 20) + 1000 # safety margin
min_funding_sat = max(min_funding_sat, MIN_FUNDING_SAT) # at least MIN_FUNDING_SAT
if min_funding_sat > self.config.LIGHTNING_MAX_FUNDING_SAT:
return
fee_policy = FeePolicy(f'feerate:{FEERATE_FALLBACK_STATIC_FEE}')