1 // This file is Copyright its original authors, visible in version control
4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
7 // You may not use this file except in accordance with one or both of these
10 //! Tests of the onion error messages/codes which are returned when routing a payment fails.
11 //! These tests work by standing up full nodes and route payments across the network, checking the
12 //! returned errors decode to the correct thing.
14 use ln::channelmanager::{HTLCForwardInfo, PaymentPreimage, PaymentHash};
15 use ln::channelmonitor::{CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS};
17 use routing::router::{Route, get_route};
18 use ln::features::InitFeatures;
20 use ln::msgs::{ChannelMessageHandler, HTLCFailChannelUpdate, OptionalField};
22 use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
23 use util::ser::{Writeable, Writer};
25 use bitcoin::blockdata::block::BlockHeader;
26 use bitcoin::hash_types::BlockHash;
28 use bitcoin::hashes::sha256::Hash as Sha256;
29 use bitcoin::hashes::Hash;
31 use bitcoin::secp256k1::Secp256k1;
32 use bitcoin::secp256k1::key::SecretKey;
34 use std::default::Default;
35 use std::sync::atomic::Ordering;
38 use ln::functional_test_utils::*;
40 fn run_onion_failure_test<F1,F2>(_name: &str, test_case: u8, nodes: &Vec<Node>, route: &Route, payment_hash: &PaymentHash, callback_msg: F1, callback_node: F2, expected_retryable: bool, expected_error_code: Option<u16>, expected_channel_update: Option<HTLCFailChannelUpdate>)
41 where F1: for <'a> FnMut(&'a mut msgs::UpdateAddHTLC),
44 run_onion_failure_test_with_fail_intercept(_name, test_case, nodes, route, payment_hash, callback_msg, |_|{}, callback_node, expected_retryable, expected_error_code, expected_channel_update);
48 // 0: node1 fails backward
49 // 1: final node fails backward
50 // 2: payment completed but the user rejects the payment
51 // 3: final node fails backward (but tamper onion payloads from node0)
52 // 100: trigger error in the intermediate node and tamper returning fail_htlc
53 // 200: trigger error in the final node and tamper returning fail_htlc
54 fn run_onion_failure_test_with_fail_intercept<F1,F2,F3>(_name: &str, test_case: u8, nodes: &Vec<Node>, route: &Route, payment_hash: &PaymentHash, mut callback_msg: F1, mut callback_fail: F2, mut callback_node: F3, expected_retryable: bool, expected_error_code: Option<u16>, expected_channel_update: Option<HTLCFailChannelUpdate>)
55 where F1: for <'a> FnMut(&'a mut msgs::UpdateAddHTLC),
56 F2: for <'a> FnMut(&'a mut msgs::UpdateFailHTLC),
61 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
62 for ix in 0..nodes.len() {
63 nodes[ix].block_notifier.block_connected_checked(&header, 1, &[], &[]);
66 macro_rules! expect_event {
67 ($node: expr, $event_type: path) => {{
68 let events = $node.node.get_and_clear_pending_events();
69 assert_eq!(events.len(), 1);
71 $event_type { .. } => {},
72 _ => panic!("Unexpected event"),
77 macro_rules! expect_htlc_forward {
79 expect_event!($node, Event::PendingHTLCsForwardable);
80 $node.node.process_pending_htlc_forwards();
84 // 0 ~~> 2 send payment
85 nodes[0].node.send_payment(&route, payment_hash.clone(), &None).unwrap();
86 check_added_monitors!(nodes[0], 1);
87 let update_0 = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
88 // temper update_add (0 => 1)
89 let mut update_add_0 = update_0.update_add_htlcs[0].clone();
90 if test_case == 0 || test_case == 3 || test_case == 100 {
91 callback_msg(&mut update_add_0);
94 // 0 => 1 update_add & CS
95 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &update_add_0);
96 commitment_signed_dance!(nodes[1], nodes[0], &update_0.commitment_signed, false, true);
98 let update_1_0 = match test_case {
99 0|100 => { // intermediate node failure; fail backward to 0
100 let update_1_0 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
101 assert!(update_1_0.update_fail_htlcs.len()+update_1_0.update_fail_malformed_htlcs.len()==1 && (update_1_0.update_fail_htlcs.len()==1 || update_1_0.update_fail_malformed_htlcs.len()==1));
104 1|2|3|200 => { // final node failure; forwarding to 2
105 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
107 if test_case != 200 {
110 expect_htlc_forward!(&nodes[1]);
112 let update_1 = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id());
113 check_added_monitors!(&nodes[1], 1);
114 assert_eq!(update_1.update_add_htlcs.len(), 1);
115 // tamper update_add (1 => 2)
116 let mut update_add_1 = update_1.update_add_htlcs[0].clone();
117 if test_case != 3 && test_case != 200 {
118 callback_msg(&mut update_add_1);
122 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &update_add_1);
123 commitment_signed_dance!(nodes[2], nodes[1], update_1.commitment_signed, false, true);
125 if test_case == 2 || test_case == 200 {
126 expect_htlc_forward!(&nodes[2]);
127 expect_event!(&nodes[2], Event::PaymentReceived);
129 expect_pending_htlcs_forwardable!(nodes[2]);
132 let update_2_1 = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
133 if test_case == 2 || test_case == 200 {
134 check_added_monitors!(&nodes[2], 1);
136 assert!(update_2_1.update_fail_htlcs.len() == 1);
138 let mut fail_msg = update_2_1.update_fail_htlcs[0].clone();
139 if test_case == 200 {
140 callback_fail(&mut fail_msg);
144 nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &fail_msg);
145 commitment_signed_dance!(nodes[1], nodes[2], update_2_1.commitment_signed, true);
147 // backward fail on 1
148 let update_1_0 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
149 assert!(update_1_0.update_fail_htlcs.len() == 1);
155 // 1 => 0 commitment_signed_dance
156 if update_1_0.update_fail_htlcs.len() > 0 {
157 let mut fail_msg = update_1_0.update_fail_htlcs[0].clone();
158 if test_case == 100 {
159 callback_fail(&mut fail_msg);
161 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &fail_msg);
163 nodes[0].node.handle_update_fail_malformed_htlc(&nodes[1].node.get_our_node_id(), &update_1_0.update_fail_malformed_htlcs[0]);
166 commitment_signed_dance!(nodes[0], nodes[1], update_1_0.commitment_signed, false, true);
168 let events = nodes[0].node.get_and_clear_pending_events();
169 assert_eq!(events.len(), 1);
170 if let &Event::PaymentFailed { payment_hash:_, ref rejected_by_dest, ref error_code, error_data: _ } = &events[0] {
171 assert_eq!(*rejected_by_dest, !expected_retryable);
172 assert_eq!(*error_code, expected_error_code);
174 panic!("Uexpected event");
177 let events = nodes[0].node.get_and_clear_pending_msg_events();
178 if expected_channel_update.is_some() {
179 assert_eq!(events.len(), 1);
181 MessageSendEvent::PaymentFailureNetworkUpdate { ref update } => {
183 &HTLCFailChannelUpdate::ChannelUpdateMessage { .. } => {
184 if let HTLCFailChannelUpdate::ChannelUpdateMessage { .. } = expected_channel_update.unwrap() {} else {
185 panic!("channel_update not found!");
188 &HTLCFailChannelUpdate::ChannelClosed { ref short_channel_id, ref is_permanent } => {
189 if let HTLCFailChannelUpdate::ChannelClosed { short_channel_id: ref expected_short_channel_id, is_permanent: ref expected_is_permanent } = expected_channel_update.unwrap() {
190 assert!(*short_channel_id == *expected_short_channel_id);
191 assert!(*is_permanent == *expected_is_permanent);
193 panic!("Unexpected message event");
196 &HTLCFailChannelUpdate::NodeFailure { ref node_id, ref is_permanent } => {
197 if let HTLCFailChannelUpdate::NodeFailure { node_id: ref expected_node_id, is_permanent: ref expected_is_permanent } = expected_channel_update.unwrap() {
198 assert!(*node_id == *expected_node_id);
199 assert!(*is_permanent == *expected_is_permanent);
201 panic!("Unexpected message event");
206 _ => panic!("Unexpected message event"),
209 assert_eq!(events.len(), 0);
213 impl msgs::ChannelUpdate {
214 fn dummy() -> msgs::ChannelUpdate {
215 use bitcoin::secp256k1::ffi::Signature as FFISignature;
216 use bitcoin::secp256k1::Signature;
217 msgs::ChannelUpdate {
218 signature: Signature::from(FFISignature::new()),
219 contents: msgs::UnsignedChannelUpdate {
220 chain_hash: BlockHash::hash(&vec![0u8][..]),
224 cltv_expiry_delta: 0,
225 htlc_minimum_msat: 0,
226 htlc_maximum_msat: OptionalField::Absent,
228 fee_proportional_millionths: 0,
235 struct BogusOnionHopData {
238 impl BogusOnionHopData {
239 fn new(orig: msgs::OnionHopData) -> Self {
240 Self { data: orig.encode() }
243 impl Writeable for BogusOnionHopData {
244 fn write<W: Writer>(&self, writer: &mut W) -> Result<(), io::Error> {
245 writer.write_all(&self.data[..])
250 fn test_onion_failure() {
251 use ln::msgs::ChannelUpdate;
252 use ln::channelmanager::CLTV_FAR_FAR_AWAY;
253 use bitcoin::secp256k1;
255 const BADONION: u16 = 0x8000;
256 const PERM: u16 = 0x4000;
257 const NODE: u16 = 0x2000;
258 const UPDATE: u16 = 0x1000;
260 let chanmon_cfgs = create_chanmon_cfgs(3);
261 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
262 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
263 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
264 for node in nodes.iter() {
265 *node.keys_manager.override_session_priv.lock().unwrap() = Some([3; 32]);
267 let channels = [create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()), create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known())];
268 let (_, payment_hash) = get_payment_preimage_hash!(nodes[0]);
269 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
270 let logger = test_utils::TestLogger::new();
271 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 40000, TEST_FINAL_CLTV, &logger).unwrap();
273 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 40000, 40_000);
275 // intermediate node failure
276 run_onion_failure_test("invalid_realm", 0, &nodes, &route, &payment_hash, |msg| {
277 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
278 let cur_height = nodes[0].node.latest_block_height.load(Ordering::Acquire) as u32 + 1;
279 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
280 let (mut onion_payloads, _htlc_msat, _htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 40000, &None, cur_height).unwrap();
281 let mut new_payloads = Vec::new();
282 for payload in onion_payloads.drain(..) {
283 new_payloads.push(BogusOnionHopData::new(payload));
285 // break the first (non-final) hop payload by swapping the realm (0) byte for a byte
286 // describing a length-1 TLV payload, which is obviously bogus.
287 new_payloads[0].data[0] = 1;
288 msg.onion_routing_packet = onion_utils::construct_onion_packet_bogus_hopdata(new_payloads, onion_keys, [0; 32], &payment_hash);
289 }, ||{}, true, Some(PERM|22), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));//XXX incremented channels idx here
291 // final node failure
292 run_onion_failure_test("invalid_realm", 3, &nodes, &route, &payment_hash, |msg| {
293 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
294 let cur_height = nodes[0].node.latest_block_height.load(Ordering::Acquire) as u32 + 1;
295 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
296 let (mut onion_payloads, _htlc_msat, _htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 40000, &None, cur_height).unwrap();
297 let mut new_payloads = Vec::new();
298 for payload in onion_payloads.drain(..) {
299 new_payloads.push(BogusOnionHopData::new(payload));
301 // break the last-hop payload by swapping the realm (0) byte for a byte describing a
302 // length-1 TLV payload, which is obviously bogus.
303 new_payloads[1].data[0] = 1;
304 msg.onion_routing_packet = onion_utils::construct_onion_packet_bogus_hopdata(new_payloads, onion_keys, [0; 32], &payment_hash);
305 }, ||{}, false, Some(PERM|22), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));
307 // the following three with run_onion_failure_test_with_fail_intercept() test only the origin node
308 // receiving simulated fail messages
309 // intermediate node failure
310 run_onion_failure_test_with_fail_intercept("temporary_node_failure", 100, &nodes, &route, &payment_hash, |msg| {
312 msg.amount_msat -= 1;
314 // and tamper returning error message
315 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
316 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
317 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], NODE|2, &[0;0]);
318 }, ||{}, true, Some(NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][0].pubkey, is_permanent: false}));
320 // final node failure
321 run_onion_failure_test_with_fail_intercept("temporary_node_failure", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| {
322 // and tamper returning error message
323 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
324 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
325 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], NODE|2, &[0;0]);
327 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
328 }, true, Some(NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][1].pubkey, is_permanent: false}));
330 // intermediate node failure
331 run_onion_failure_test_with_fail_intercept("permanent_node_failure", 100, &nodes, &route, &payment_hash, |msg| {
332 msg.amount_msat -= 1;
334 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
335 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
336 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|NODE|2, &[0;0]);
337 }, ||{}, true, Some(PERM|NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][0].pubkey, is_permanent: true}));
339 // final node failure
340 run_onion_failure_test_with_fail_intercept("permanent_node_failure", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| {
341 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
342 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
343 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], PERM|NODE|2, &[0;0]);
345 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
346 }, false, Some(PERM|NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][1].pubkey, is_permanent: true}));
348 // intermediate node failure
349 run_onion_failure_test_with_fail_intercept("required_node_feature_missing", 100, &nodes, &route, &payment_hash, |msg| {
350 msg.amount_msat -= 1;
352 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
353 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
354 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|NODE|3, &[0;0]);
356 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
357 }, true, Some(PERM|NODE|3), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][0].pubkey, is_permanent: true}));
359 // final node failure
360 run_onion_failure_test_with_fail_intercept("required_node_feature_missing", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| {
361 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
362 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
363 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], PERM|NODE|3, &[0;0]);
365 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
366 }, false, Some(PERM|NODE|3), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][1].pubkey, is_permanent: true}));
368 run_onion_failure_test("invalid_onion_version", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.version = 1; }, ||{}, true,
369 Some(BADONION|PERM|4), None);
371 run_onion_failure_test("invalid_onion_hmac", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.hmac = [3; 32]; }, ||{}, true,
372 Some(BADONION|PERM|5), None);
374 run_onion_failure_test("invalid_onion_key", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.public_key = Err(secp256k1::Error::InvalidPublicKey);}, ||{}, true,
375 Some(BADONION|PERM|6), None);
377 run_onion_failure_test_with_fail_intercept("temporary_channel_failure", 100, &nodes, &route, &payment_hash, |msg| {
378 msg.amount_msat -= 1;
380 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
381 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
382 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], UPDATE|7, &ChannelUpdate::dummy().encode_with_len()[..]);
383 }, ||{}, true, Some(UPDATE|7), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
385 run_onion_failure_test_with_fail_intercept("permanent_channel_failure", 100, &nodes, &route, &payment_hash, |msg| {
386 msg.amount_msat -= 1;
388 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
389 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
390 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|8, &[0;0]);
391 // short_channel_id from the processing node
392 }, ||{}, true, Some(PERM|8), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));
394 run_onion_failure_test_with_fail_intercept("required_channel_feature_missing", 100, &nodes, &route, &payment_hash, |msg| {
395 msg.amount_msat -= 1;
397 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
398 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
399 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|9, &[0;0]);
400 // short_channel_id from the processing node
401 }, ||{}, true, Some(PERM|9), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));
403 let mut bogus_route = route.clone();
404 bogus_route.paths[0][1].short_channel_id -= 1;
405 run_onion_failure_test("unknown_next_peer", 0, &nodes, &bogus_route, &payment_hash, |_| {}, ||{}, true, Some(PERM|10),
406 Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: bogus_route.paths[0][1].short_channel_id, is_permanent:true}));
408 let amt_to_forward = nodes[1].node.channel_state.lock().unwrap().by_id.get(&channels[1].2).unwrap().get_counterparty_htlc_minimum_msat() - 1;
409 let mut bogus_route = route.clone();
410 let route_len = bogus_route.paths[0].len();
411 bogus_route.paths[0][route_len-1].fee_msat = amt_to_forward;
412 run_onion_failure_test("amount_below_minimum", 0, &nodes, &bogus_route, &payment_hash, |_| {}, ||{}, true, Some(UPDATE|11), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
414 //TODO: with new config API, we will be able to generate both valid and
415 //invalid channel_update cases.
416 run_onion_failure_test("fee_insufficient", 0, &nodes, &route, &payment_hash, |msg| {
417 msg.amount_msat -= 1;
418 }, || {}, true, Some(UPDATE|12), Some(msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id: channels[0].0.contents.short_channel_id, is_permanent: true}));
420 run_onion_failure_test("incorrect_cltv_expiry", 0, &nodes, &route, &payment_hash, |msg| {
421 // need to violate: cltv_expiry - cltv_expiry_delta >= outgoing_cltv_value
422 msg.cltv_expiry -= 1;
423 }, || {}, true, Some(UPDATE|13), Some(msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id: channels[0].0.contents.short_channel_id, is_permanent: true}));
425 run_onion_failure_test("expiry_too_soon", 0, &nodes, &route, &payment_hash, |msg| {
426 let height = msg.cltv_expiry - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS + 1;
427 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
429 nodes[1].block_notifier.block_connected_checked(&header, height, &[], &[]);
430 }, ||{}, true, Some(UPDATE|14), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
432 run_onion_failure_test("unknown_payment_hash", 2, &nodes, &route, &payment_hash, |_| {}, || {
433 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
434 }, false, Some(PERM|15), None);
436 run_onion_failure_test("final_expiry_too_soon", 1, &nodes, &route, &payment_hash, |msg| {
437 let height = msg.cltv_expiry - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS + 1;
438 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
440 nodes[2].block_notifier.block_connected_checked(&header, height, &[], &[]);
441 }, || {}, true, Some(17), None);
443 run_onion_failure_test("final_incorrect_cltv_expiry", 1, &nodes, &route, &payment_hash, |_| {}, || {
444 for (_, pending_forwards) in nodes[1].node.channel_state.lock().unwrap().forward_htlcs.iter_mut() {
445 for f in pending_forwards.iter_mut() {
447 &mut HTLCForwardInfo::AddHTLC { ref mut forward_info, .. } =>
448 forward_info.outgoing_cltv_value += 1,
453 }, true, Some(18), None);
455 run_onion_failure_test("final_incorrect_htlc_amount", 1, &nodes, &route, &payment_hash, |_| {}, || {
456 // violate amt_to_forward > msg.amount_msat
457 for (_, pending_forwards) in nodes[1].node.channel_state.lock().unwrap().forward_htlcs.iter_mut() {
458 for f in pending_forwards.iter_mut() {
460 &mut HTLCForwardInfo::AddHTLC { ref mut forward_info, .. } =>
461 forward_info.amt_to_forward -= 1,
466 }, true, Some(19), None);
468 run_onion_failure_test("channel_disabled", 0, &nodes, &route, &payment_hash, |_| {}, || {
469 // disconnect event to the channel between nodes[1] ~ nodes[2]
470 nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id(), false);
471 nodes[2].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
472 }, true, Some(UPDATE|20), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
473 reconnect_nodes(&nodes[1], &nodes[2], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
475 run_onion_failure_test("expiry_too_far", 0, &nodes, &route, &payment_hash, |msg| {
476 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
477 let mut route = route.clone();
479 route.paths[0][1].cltv_expiry_delta += CLTV_FAR_FAR_AWAY + route.paths[0][0].cltv_expiry_delta + 1;
480 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
481 let (onion_payloads, _, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 40000, &None, height).unwrap();
482 let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
483 msg.cltv_expiry = htlc_cltv;
484 msg.onion_routing_packet = onion_packet;
485 }, ||{}, true, Some(21), None);