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 chain::channelmonitor::{CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS};
15 use ln::channelmanager::{HTLCForwardInfo, PaymentPreimage, PaymentHash};
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};
24 use util::config::UserConfig;
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;
37 use ln::functional_test_utils::*;
39 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>)
40 where F1: for <'a> FnMut(&'a mut msgs::UpdateAddHTLC),
43 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);
47 // 0: node1 fails backward
48 // 1: final node fails backward
49 // 2: payment completed but the user rejects the payment
50 // 3: final node fails backward (but tamper onion payloads from node0)
51 // 100: trigger error in the intermediate node and tamper returning fail_htlc
52 // 200: trigger error in the final node and tamper returning fail_htlc
53 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>)
54 where F1: for <'a> FnMut(&'a mut msgs::UpdateAddHTLC),
55 F2: for <'a> FnMut(&'a mut msgs::UpdateFailHTLC),
58 macro_rules! expect_event {
59 ($node: expr, $event_type: path) => {{
60 let events = $node.node.get_and_clear_pending_events();
61 assert_eq!(events.len(), 1);
63 $event_type { .. } => {},
64 _ => panic!("Unexpected event"),
69 macro_rules! expect_htlc_forward {
71 expect_event!($node, Event::PendingHTLCsForwardable);
72 $node.node.process_pending_htlc_forwards();
76 // 0 ~~> 2 send payment
77 nodes[0].node.send_payment(&route, payment_hash.clone(), &None).unwrap();
78 check_added_monitors!(nodes[0], 1);
79 let update_0 = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
80 // temper update_add (0 => 1)
81 let mut update_add_0 = update_0.update_add_htlcs[0].clone();
82 if test_case == 0 || test_case == 3 || test_case == 100 {
83 callback_msg(&mut update_add_0);
86 // 0 => 1 update_add & CS
87 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &update_add_0);
88 commitment_signed_dance!(nodes[1], nodes[0], &update_0.commitment_signed, false, true);
90 let update_1_0 = match test_case {
91 0|100 => { // intermediate node failure; fail backward to 0
92 let update_1_0 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
93 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));
96 1|2|3|200 => { // final node failure; forwarding to 2
97 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
102 expect_htlc_forward!(&nodes[1]);
104 let update_1 = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id());
105 check_added_monitors!(&nodes[1], 1);
106 assert_eq!(update_1.update_add_htlcs.len(), 1);
107 // tamper update_add (1 => 2)
108 let mut update_add_1 = update_1.update_add_htlcs[0].clone();
109 if test_case != 3 && test_case != 200 {
110 callback_msg(&mut update_add_1);
114 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &update_add_1);
115 commitment_signed_dance!(nodes[2], nodes[1], update_1.commitment_signed, false, true);
117 if test_case == 2 || test_case == 200 {
118 expect_htlc_forward!(&nodes[2]);
119 expect_event!(&nodes[2], Event::PaymentReceived);
121 expect_pending_htlcs_forwardable!(nodes[2]);
124 let update_2_1 = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
125 if test_case == 2 || test_case == 200 {
126 check_added_monitors!(&nodes[2], 1);
128 assert!(update_2_1.update_fail_htlcs.len() == 1);
130 let mut fail_msg = update_2_1.update_fail_htlcs[0].clone();
131 if test_case == 200 {
132 callback_fail(&mut fail_msg);
136 nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &fail_msg);
137 commitment_signed_dance!(nodes[1], nodes[2], update_2_1.commitment_signed, true);
139 // backward fail on 1
140 let update_1_0 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
141 assert!(update_1_0.update_fail_htlcs.len() == 1);
147 // 1 => 0 commitment_signed_dance
148 if update_1_0.update_fail_htlcs.len() > 0 {
149 let mut fail_msg = update_1_0.update_fail_htlcs[0].clone();
150 if test_case == 100 {
151 callback_fail(&mut fail_msg);
153 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &fail_msg);
155 nodes[0].node.handle_update_fail_malformed_htlc(&nodes[1].node.get_our_node_id(), &update_1_0.update_fail_malformed_htlcs[0]);
158 commitment_signed_dance!(nodes[0], nodes[1], update_1_0.commitment_signed, false, true);
160 let events = nodes[0].node.get_and_clear_pending_events();
161 assert_eq!(events.len(), 1);
162 if let &Event::PaymentFailed { payment_hash:_, ref rejected_by_dest, ref error_code, error_data: _ } = &events[0] {
163 assert_eq!(*rejected_by_dest, !expected_retryable);
164 assert_eq!(*error_code, expected_error_code);
166 panic!("Uexpected event");
169 let events = nodes[0].node.get_and_clear_pending_msg_events();
170 if expected_channel_update.is_some() {
171 assert_eq!(events.len(), 1);
173 MessageSendEvent::PaymentFailureNetworkUpdate { ref update } => {
175 &HTLCFailChannelUpdate::ChannelUpdateMessage { .. } => {
176 if let HTLCFailChannelUpdate::ChannelUpdateMessage { .. } = expected_channel_update.unwrap() {} else {
177 panic!("channel_update not found!");
180 &HTLCFailChannelUpdate::ChannelClosed { ref short_channel_id, ref is_permanent } => {
181 if let HTLCFailChannelUpdate::ChannelClosed { short_channel_id: ref expected_short_channel_id, is_permanent: ref expected_is_permanent } = expected_channel_update.unwrap() {
182 assert!(*short_channel_id == *expected_short_channel_id);
183 assert!(*is_permanent == *expected_is_permanent);
185 panic!("Unexpected message event");
188 &HTLCFailChannelUpdate::NodeFailure { ref node_id, ref is_permanent } => {
189 if let HTLCFailChannelUpdate::NodeFailure { node_id: ref expected_node_id, is_permanent: ref expected_is_permanent } = expected_channel_update.unwrap() {
190 assert!(*node_id == *expected_node_id);
191 assert!(*is_permanent == *expected_is_permanent);
193 panic!("Unexpected message event");
198 _ => panic!("Unexpected message event"),
201 assert_eq!(events.len(), 0);
205 impl msgs::ChannelUpdate {
206 fn dummy() -> msgs::ChannelUpdate {
207 use bitcoin::secp256k1::ffi::Signature as FFISignature;
208 use bitcoin::secp256k1::Signature;
209 msgs::ChannelUpdate {
210 signature: Signature::from(unsafe { FFISignature::new() }),
211 contents: msgs::UnsignedChannelUpdate {
212 chain_hash: BlockHash::hash(&vec![0u8][..]),
216 cltv_expiry_delta: 0,
217 htlc_minimum_msat: 0,
218 htlc_maximum_msat: OptionalField::Absent,
220 fee_proportional_millionths: 0,
227 struct BogusOnionHopData {
230 impl BogusOnionHopData {
231 fn new(orig: msgs::OnionHopData) -> Self {
232 Self { data: orig.encode() }
235 impl Writeable for BogusOnionHopData {
236 fn write<W: Writer>(&self, writer: &mut W) -> Result<(), io::Error> {
237 writer.write_all(&self.data[..])
242 fn test_onion_failure() {
243 use ln::msgs::ChannelUpdate;
244 use ln::channelmanager::CLTV_FAR_FAR_AWAY;
245 use bitcoin::secp256k1;
247 const BADONION: u16 = 0x8000;
248 const PERM: u16 = 0x4000;
249 const NODE: u16 = 0x2000;
250 const UPDATE: u16 = 0x1000;
252 // When we check for amount_below_minimum below, we want to test that we're using the *right*
253 // amount, thus we need different htlc_minimum_msat values. We set node[2]'s htlc_minimum_msat
254 // to 2000, which is above the default value of 1000 set in create_node_chanmgrs.
255 // This exposed a previous bug because we were using the wrong value all the way down in
256 // Channel::get_counterparty_htlc_minimum_msat().
257 let mut node_2_cfg: UserConfig = Default::default();
258 node_2_cfg.own_channel_config.our_htlc_minimum_msat = 2000;
259 node_2_cfg.channel_options.announced_channel = true;
260 node_2_cfg.peer_channel_config_limits.force_announced_channel_preference = false;
262 let chanmon_cfgs = create_chanmon_cfgs(3);
263 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
264 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, Some(node_2_cfg)]);
265 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
266 for node in nodes.iter() {
267 *node.keys_manager.override_session_priv.lock().unwrap() = Some([3; 32]);
269 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())];
270 let (_, payment_hash) = get_payment_preimage_hash!(nodes[0]);
271 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
272 let logger = test_utils::TestLogger::new();
273 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, None, &Vec::new(), 40000, TEST_FINAL_CLTV, &logger).unwrap();
275 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 40000, 40_000);
277 // intermediate node failure
278 run_onion_failure_test("invalid_realm", 0, &nodes, &route, &payment_hash, |msg| {
279 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
280 let cur_height = nodes[0].best_block_info().1 + 1;
281 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
282 let (mut onion_payloads, _htlc_msat, _htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 40000, &None, cur_height).unwrap();
283 let mut new_payloads = Vec::new();
284 for payload in onion_payloads.drain(..) {
285 new_payloads.push(BogusOnionHopData::new(payload));
287 // break the first (non-final) hop payload by swapping the realm (0) byte for a byte
288 // describing a length-1 TLV payload, which is obviously bogus.
289 new_payloads[0].data[0] = 1;
290 msg.onion_routing_packet = onion_utils::construct_onion_packet_bogus_hopdata(new_payloads, onion_keys, [0; 32], &payment_hash);
291 }, ||{}, 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
293 // final node failure
294 run_onion_failure_test("invalid_realm", 3, &nodes, &route, &payment_hash, |msg| {
295 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
296 let cur_height = nodes[0].best_block_info().1 + 1;
297 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
298 let (mut onion_payloads, _htlc_msat, _htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 40000, &None, cur_height).unwrap();
299 let mut new_payloads = Vec::new();
300 for payload in onion_payloads.drain(..) {
301 new_payloads.push(BogusOnionHopData::new(payload));
303 // break the last-hop payload by swapping the realm (0) byte for a byte describing a
304 // length-1 TLV payload, which is obviously bogus.
305 new_payloads[1].data[0] = 1;
306 msg.onion_routing_packet = onion_utils::construct_onion_packet_bogus_hopdata(new_payloads, onion_keys, [0; 32], &payment_hash);
307 }, ||{}, false, Some(PERM|22), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));
309 // the following three with run_onion_failure_test_with_fail_intercept() test only the origin node
310 // receiving simulated fail messages
311 // intermediate node failure
312 run_onion_failure_test_with_fail_intercept("temporary_node_failure", 100, &nodes, &route, &payment_hash, |msg| {
314 msg.amount_msat -= 1;
316 // and tamper returning error message
317 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
318 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
319 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], NODE|2, &[0;0]);
320 }, ||{}, true, Some(NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][0].pubkey, is_permanent: false}));
322 // final node failure
323 run_onion_failure_test_with_fail_intercept("temporary_node_failure", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| {
324 // and tamper returning error message
325 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
326 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
327 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], NODE|2, &[0;0]);
329 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
330 }, true, Some(NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][1].pubkey, is_permanent: false}));
332 // intermediate node failure
333 run_onion_failure_test_with_fail_intercept("permanent_node_failure", 100, &nodes, &route, &payment_hash, |msg| {
334 msg.amount_msat -= 1;
336 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
337 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
338 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|NODE|2, &[0;0]);
339 }, ||{}, true, Some(PERM|NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][0].pubkey, is_permanent: true}));
341 // final node failure
342 run_onion_failure_test_with_fail_intercept("permanent_node_failure", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| {
343 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
344 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
345 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], PERM|NODE|2, &[0;0]);
347 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
348 }, false, Some(PERM|NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][1].pubkey, is_permanent: true}));
350 // intermediate node failure
351 run_onion_failure_test_with_fail_intercept("required_node_feature_missing", 100, &nodes, &route, &payment_hash, |msg| {
352 msg.amount_msat -= 1;
354 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
355 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
356 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|NODE|3, &[0;0]);
358 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
359 }, true, Some(PERM|NODE|3), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][0].pubkey, is_permanent: true}));
361 // final node failure
362 run_onion_failure_test_with_fail_intercept("required_node_feature_missing", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| {
363 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
364 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
365 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], PERM|NODE|3, &[0;0]);
367 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
368 }, false, Some(PERM|NODE|3), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][1].pubkey, is_permanent: true}));
370 run_onion_failure_test("invalid_onion_version", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.version = 1; }, ||{}, true,
371 Some(BADONION|PERM|4), None);
373 run_onion_failure_test("invalid_onion_hmac", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.hmac = [3; 32]; }, ||{}, true,
374 Some(BADONION|PERM|5), None);
376 run_onion_failure_test("invalid_onion_key", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.public_key = Err(secp256k1::Error::InvalidPublicKey);}, ||{}, true,
377 Some(BADONION|PERM|6), None);
379 run_onion_failure_test_with_fail_intercept("temporary_channel_failure", 100, &nodes, &route, &payment_hash, |msg| {
380 msg.amount_msat -= 1;
382 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
383 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
384 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], UPDATE|7, &ChannelUpdate::dummy().encode_with_len()[..]);
385 }, ||{}, true, Some(UPDATE|7), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
387 run_onion_failure_test_with_fail_intercept("permanent_channel_failure", 100, &nodes, &route, &payment_hash, |msg| {
388 msg.amount_msat -= 1;
390 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
391 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
392 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|8, &[0;0]);
393 // short_channel_id from the processing node
394 }, ||{}, true, Some(PERM|8), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));
396 run_onion_failure_test_with_fail_intercept("required_channel_feature_missing", 100, &nodes, &route, &payment_hash, |msg| {
397 msg.amount_msat -= 1;
399 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
400 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
401 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|9, &[0;0]);
402 // short_channel_id from the processing node
403 }, ||{}, true, Some(PERM|9), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));
405 let mut bogus_route = route.clone();
406 bogus_route.paths[0][1].short_channel_id -= 1;
407 run_onion_failure_test("unknown_next_peer", 0, &nodes, &bogus_route, &payment_hash, |_| {}, ||{}, true, Some(PERM|10),
408 Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: bogus_route.paths[0][1].short_channel_id, is_permanent:true}));
410 let amt_to_forward = nodes[1].node.channel_state.lock().unwrap().by_id.get(&channels[1].2).unwrap().get_counterparty_htlc_minimum_msat() - 1;
411 let mut bogus_route = route.clone();
412 let route_len = bogus_route.paths[0].len();
413 bogus_route.paths[0][route_len-1].fee_msat = amt_to_forward;
414 run_onion_failure_test("amount_below_minimum", 0, &nodes, &bogus_route, &payment_hash, |_| {}, ||{}, true, Some(UPDATE|11), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
416 // Test a positive test-case with one extra msat, meeting the minimum.
417 bogus_route.paths[0][route_len-1].fee_msat = amt_to_forward + 1;
418 let (preimage, _) = send_along_route(&nodes[0], bogus_route, &[&nodes[1], &nodes[2]], amt_to_forward+1);
419 claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], preimage, amt_to_forward+1);
421 //TODO: with new config API, we will be able to generate both valid and
422 //invalid channel_update cases.
423 run_onion_failure_test("fee_insufficient", 0, &nodes, &route, &payment_hash, |msg| {
424 msg.amount_msat -= 1;
425 }, || {}, true, Some(UPDATE|12), Some(msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id: channels[0].0.contents.short_channel_id, is_permanent: true}));
427 run_onion_failure_test("incorrect_cltv_expiry", 0, &nodes, &route, &payment_hash, |msg| {
428 // need to violate: cltv_expiry - cltv_expiry_delta >= outgoing_cltv_value
429 msg.cltv_expiry -= 1;
430 }, || {}, true, Some(UPDATE|13), Some(msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id: channels[0].0.contents.short_channel_id, is_permanent: true}));
432 run_onion_failure_test("expiry_too_soon", 0, &nodes, &route, &payment_hash, |msg| {
433 let height = msg.cltv_expiry - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS + 1;
434 connect_blocks(&nodes[0], height - nodes[0].best_block_info().1);
435 connect_blocks(&nodes[1], height - nodes[1].best_block_info().1);
436 connect_blocks(&nodes[2], height - nodes[2].best_block_info().1);
437 }, ||{}, true, Some(UPDATE|14), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
439 run_onion_failure_test("unknown_payment_hash", 2, &nodes, &route, &payment_hash, |_| {}, || {
440 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
441 }, false, Some(PERM|15), None);
443 run_onion_failure_test("final_expiry_too_soon", 1, &nodes, &route, &payment_hash, |msg| {
444 let height = msg.cltv_expiry - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS + 1;
445 connect_blocks(&nodes[0], height - nodes[0].best_block_info().1);
446 connect_blocks(&nodes[1], height - nodes[1].best_block_info().1);
447 connect_blocks(&nodes[2], height - nodes[2].best_block_info().1);
448 }, || {}, true, Some(17), None);
450 run_onion_failure_test("final_incorrect_cltv_expiry", 1, &nodes, &route, &payment_hash, |_| {}, || {
451 for (_, pending_forwards) in nodes[1].node.channel_state.lock().unwrap().forward_htlcs.iter_mut() {
452 for f in pending_forwards.iter_mut() {
454 &mut HTLCForwardInfo::AddHTLC { ref mut forward_info, .. } =>
455 forward_info.outgoing_cltv_value += 1,
460 }, true, Some(18), None);
462 run_onion_failure_test("final_incorrect_htlc_amount", 1, &nodes, &route, &payment_hash, |_| {}, || {
463 // violate amt_to_forward > msg.amount_msat
464 for (_, pending_forwards) in nodes[1].node.channel_state.lock().unwrap().forward_htlcs.iter_mut() {
465 for f in pending_forwards.iter_mut() {
467 &mut HTLCForwardInfo::AddHTLC { ref mut forward_info, .. } =>
468 forward_info.amt_to_forward -= 1,
473 }, true, Some(19), None);
475 run_onion_failure_test("channel_disabled", 0, &nodes, &route, &payment_hash, |_| {}, || {
476 // disconnect event to the channel between nodes[1] ~ nodes[2]
477 nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id(), false);
478 nodes[2].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
479 }, true, Some(UPDATE|20), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
480 reconnect_nodes(&nodes[1], &nodes[2], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
482 run_onion_failure_test("expiry_too_far", 0, &nodes, &route, &payment_hash, |msg| {
483 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
484 let mut route = route.clone();
485 let height = nodes[2].best_block_info().1;
486 route.paths[0][1].cltv_expiry_delta += CLTV_FAR_FAR_AWAY + route.paths[0][0].cltv_expiry_delta + 1;
487 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
488 let (onion_payloads, _, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 40000, &None, height).unwrap();
489 let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
490 msg.cltv_expiry = htlc_cltv;
491 msg.onion_routing_packet = onion_packet;
492 }, ||{}, true, Some(21), None);