From b27f788e91fd4a6d9b2ba5d209e748375781925d Mon Sep 17 00:00:00 2001 From: Matt Corallo Date: Mon, 29 Jul 2019 13:44:47 -0400 Subject: [PATCH] Allow a counterparty to resend their funding_locked before ours --- src/ln/channel.rs | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/src/ln/channel.rs b/src/ln/channel.rs index 1a09b187f..6dd7e8c82 100644 --- a/src/ln/channel.rs +++ b/src/ln/channel.rs @@ -1583,10 +1583,13 @@ impl Channel { } else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::OurFundingLocked as u32) { self.channel_state = ChannelState::ChannelFunded as u32 | (self.channel_state & MULTI_STATE_FLAGS); self.channel_update_count += 1; - } else if self.channel_state & (ChannelState::ChannelFunded as u32) != 0 && - // Note that funding_signed/funding_created will have decremented both by 1! - self.cur_local_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1 && - self.cur_remote_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1 { + } else if (self.channel_state & (ChannelState::ChannelFunded as u32) != 0 && + // Note that funding_signed/funding_created will have decremented both by 1! + self.cur_local_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1 && + self.cur_remote_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1) || + // If we reconnected before sending our funding locked they may still resend theirs: + (self.channel_state & (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32) == + (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32)) { if self.their_cur_commitment_point != Some(msg.next_per_commitment_point) { return Err(ChannelError::Close("Peer sent a reconnect funding_locked with a different point")); } -- 2.39.2