Include `height` to `incorrect_or_unknown_payment_details` failure

`incorrect_or_unknown_payment_details` failure message,
`0x4000 (PERM) | 15`, should include the following data:
- [u64:htlc_msat]
- [u32:height]
This patches ensure that the height is included in all
the occurrences of this failure message.

diff --git a/lightning/src/ln/channelmanager.rs b/lightning/src/ln/channelmanager.rs
index f9ccc18a0c707b66773a7421e9115a3b329f57b9..c59560944d8bc6bb02be2565dee22a89e22d040b 100644 (file)
--- a/lightning/src/ln/channelmanager.rs
+++ b/lightning/src/ln/channelmanager.rs
@@ -1733,12 +1733,19 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref> ChannelMan
                                                                        }
                                                                        if total_value >= msgs::MAX_VALUE_MSAT || total_value > data.total_msat  {
                                                                                for htlc in htlcs.iter() {
+                                                                                       let mut htlc_msat_height_data = byte_utils::be64_to_array(htlc.value).to_vec();
+                                                                                       htlc_msat_height_data.extend_from_slice(
+                                                                                               &byte_utils::be32_to_array(
+                                                                                                       self.latest_block_height.load(Ordering::Acquire)
+                                                                                                               as u32,
+                                                                                               ),
+                                                                                       );
                                                                                        failed_forwards.push((HTLCSource::PreviousHopData(HTLCPreviousHopData {
                                                                                                        short_channel_id: htlc.prev_hop.short_channel_id,
                                                                                                        htlc_id: htlc.prev_hop.htlc_id,
                                                                                                        incoming_packet_shared_secret: htlc.prev_hop.incoming_packet_shared_secret,
                                                                                                }), payment_hash,
-                                                                                               HTLCFailReason::Reason { failure_code: 0x4000 | 15, data: byte_utils::be64_to_array(htlc.value).to_vec() }
+                                                                                               HTLCFailReason::Reason { failure_code: 0x4000 | 15, data: htlc_msat_height_data }
                                                                                        ));
                                                                                }
                                                                        } else if total_value == data.total_msat {
@@ -1819,9 +1826,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref> ChannelMan
                if let Some(mut sources) = removed_source {
                        for htlc in sources.drain(..) {
                                if channel_state.is_none() { channel_state = Some(self.channel_state.lock().unwrap()); }
+                               let mut htlc_msat_height_data = byte_utils::be64_to_array(htlc.value).to_vec();
+                               htlc_msat_height_data.extend_from_slice(&byte_utils::be32_to_array(
+                                       self.latest_block_height.load(Ordering::Acquire) as u32,
+                               ));
                                self.fail_htlc_backwards_internal(channel_state.take().unwrap(),
                                                HTLCSource::PreviousHopData(htlc.prev_hop), payment_hash,
-                                               HTLCFailReason::Reason { failure_code: 0x4000 | 15, data: byte_utils::be64_to_array(htlc.value).to_vec() });
+                                               HTLCFailReason::Reason { failure_code: 0x4000 | 15, data: htlc_msat_height_data });
                        }
                        true
                } else { false }
@@ -1982,12 +1993,13 @@ impl<ChanSigner: ChannelKeys, M: Deref, T: Deref, K: Deref, F: Deref> ChannelMan
                        for htlc in sources.drain(..) {
                                if channel_state.is_none() { channel_state = Some(self.channel_state.lock().unwrap()); }
                                if (is_mpp && !valid_mpp) || (!is_mpp && (htlc.value < expected_amount || htlc.value > expected_amount * 2)) {
-                                       let mut htlc_msat_data = byte_utils::be64_to_array(htlc.value).to_vec();
-                                       let mut height_data = byte_utils::be32_to_array(self.latest_block_height.load(Ordering::Acquire) as u32).to_vec();
-                                       htlc_msat_data.append(&mut height_data);
+                                       let mut htlc_msat_height_data = byte_utils::be64_to_array(htlc.value).to_vec();
+                                       htlc_msat_height_data.extend_from_slice(&byte_utils::be32_to_array(
+                                               self.latest_block_height.load(Ordering::Acquire) as u32,
+                                       ));
                                        self.fail_htlc_backwards_internal(channel_state.take().unwrap(),
                                                                         HTLCSource::PreviousHopData(htlc.prev_hop), &payment_hash,
-                                                                        HTLCFailReason::Reason { failure_code: 0x4000|15, data: htlc_msat_data });
+                                                                        HTLCFailReason::Reason { failure_code: 0x4000|15, data: htlc_msat_height_data });
                                } else {
                                        match self.claim_funds_from_hop(channel_state.as_mut().unwrap(), htlc.prev_hop, payment_preimage) {
                                                Err(Some(e)) => {