Add accept_mpp_keysend to UserConfig

Author: alecchendev

lightning/src/util/config.rs

@@ -552,6 +552,17 @@ pub struct UserConfig {
 	/// [`ChannelManager::get_intercept_scid`]: crate::ln::channelmanager::ChannelManager::get_intercept_scid
 	/// [`Event::HTLCIntercepted`]: crate::events::Event::HTLCIntercepted
 	pub accept_intercept_htlcs: bool,
+	/// If this is set to false, when going to claim a payment we'll fail a keysend payment if
+	/// it has multiple parts. If this is set to true, we'll claim the payment.
+	///
+	/// For LDK versions prior to 0.0.116 we act as if this were set to false, so on downgrades
+	/// [`ChannelManager::claim_funds`] will fail any previously received multi-part keysend
+	/// payments.
+	///
+	/// Default value: false.
+	///
+	/// [`ChannelManager::claim_funds`]: crate::ln::channelmanager::ChannelManager::claim_funds
+	pub accept_mpp_keysend: bool,
 }
 
 impl Default for UserConfig {
@@ -564,6 +575,7 @@ impl Default for UserConfig {
 			accept_inbound_channels: true,
 			manually_accept_inbound_channels: false,
 			accept_intercept_htlcs: false,
+			accept_mpp_keysend: false,
 		}
 	}
 }