Pass channel updates to ChannelManager and Channel.

[rust-lightning] / lightning / src / ln / channel.rs

diff --git a/lightning/src/ln/channel.rs b/lightning/src/ln/channel.rs
index 426083dd832e243fcf24ce15082c79be800725a3..ce048f0eeb96df1b429b066a852e42c93dea84dc 100644 (file)
--- a/lightning/src/ln/channel.rs
+++ b/lightning/src/ln/channel.rs
@@ -4132,6 +4132,20 @@ impl<Signer: Sign> Channel<Signer> {
                }
        }
 
+       pub fn channel_update(&mut self, msg: &msgs::ChannelUpdate) -> Result<(), ChannelError> {
+               let usable_channel_value_msat = (self.channel_value_satoshis - self.counterparty_selected_channel_reserve_satoshis) * 1000;
+               if msg.contents.htlc_minimum_msat >= usable_channel_value_msat {
+                       return Err(ChannelError::Close("Minimum htlc value is greater than channel value".to_string()));
+               }
+               self.counterparty_forwarding_info = Some(CounterpartyForwardingInfo {
+                       fee_base_msat: msg.contents.fee_base_msat,
+                       fee_proportional_millionths: msg.contents.fee_proportional_millionths,
+                       cltv_expiry_delta: msg.contents.cltv_expiry_delta
+               });
+
+               Ok(())
+       }
+
        /// Begins the shutdown process, getting a message for the remote peer and returning all
        /// holding cell HTLCs for payment failure.
        pub fn get_shutdown(&mut self) -> Result<(msgs::Shutdown, Vec<(HTLCSource, PaymentHash)>), APIError> {