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Allow a counterparty to resend their funding_locked before ours

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This commit is contained in:
Matt Corallo 2019-07-29 13:44:47 -04:00
parent a1e0ca410e
commit b27f788e91
1 changed files with 7 additions and 4 deletions
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7
src/ln/channel.rs
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@ -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 &&
} 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 {
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"));
}