1 //! Wire messages, traits representing wire message handlers, and a few error types live here.
3 //! For a normal node you probably don't need to use anything here, however, if you wish to split a
4 //! node into an internet-facing route/message socket handling daemon and a separate daemon (or
5 //! server entirely) which handles only channel-related messages you may wish to implement
6 //! ChannelMessageHandler yourself and use it to re-serialize messages and pass them across
9 //! Note that if you go with such an architecture (instead of passing raw socket events to a
10 //! non-internet-facing system) you trust the frontend internet-facing system to not lie about the
11 //! source node_id of the message, however this does allow you to significantly reduce bandwidth
12 //! between the systems as routing messages can represent a significant chunk of bandwidth usage
13 //! (especially for non-channel-publicly-announcing nodes). As an alternate design which avoids
14 //! this issue, if you have sufficient bidirectional bandwidth between your systems, you may send
15 //! raw socket events into your non-internet-facing system and then send routing events back to
16 //! track the network on the less-secure system.
18 use secp256k1::key::PublicKey;
19 use secp256k1::Signature;
21 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
22 use bitcoin::blockdata::script::Script;
24 use ln::features::{ChannelFeatures, InitFeatures, NodeFeatures};
26 use std::error::Error;
29 use std::result::Result;
32 use util::ser::{Readable, Writeable, Writer, FixedLengthReader, HighZeroBytesDroppedVarInt};
34 use ln::channelmanager::{PaymentPreimage, PaymentHash};
36 /// An error in decoding a message or struct.
38 pub enum DecodeError {
39 /// A version byte specified something we don't know how to handle.
40 /// Includes unknown realm byte in an OnionHopData packet
42 /// Unknown feature mandating we fail to parse message (eg TLV with an even, unknown type)
43 UnknownRequiredFeature,
44 /// Value was invalid, eg a byte which was supposed to be a bool was something other than a 0
45 /// or 1, a public key/private key/signature was invalid, text wasn't UTF-8, etc
49 /// node_announcement included more than one address of a given type!
50 ExtraAddressesPerType,
51 /// A length descriptor in the packet didn't describe the later data correctly
53 /// Error from std::io
57 /// An init message to be sent or received from a peer
59 #[cfg(not(feature = "fuzztarget"))]
60 pub(crate) features: InitFeatures,
61 #[cfg(feature = "fuzztarget")]
62 pub features: InitFeatures,
65 /// An error message to be sent or received from a peer
67 pub struct ErrorMessage {
68 pub(crate) channel_id: [u8; 32],
69 pub(crate) data: String,
72 /// A ping message to be sent or received from a peer
74 pub(crate) ponglen: u16,
75 pub(crate) byteslen: u16,
78 /// A pong message to be sent or received from a peer
80 pub(crate) byteslen: u16,
83 /// An open_channel message to be sent or received from a peer
85 pub struct OpenChannel {
86 pub(crate) chain_hash: Sha256dHash,
87 pub(crate) temporary_channel_id: [u8; 32],
88 pub(crate) funding_satoshis: u64,
89 pub(crate) push_msat: u64,
90 pub(crate) dust_limit_satoshis: u64,
91 pub(crate) max_htlc_value_in_flight_msat: u64,
92 pub(crate) channel_reserve_satoshis: u64,
93 pub(crate) htlc_minimum_msat: u64,
94 pub(crate) feerate_per_kw: u32,
95 pub(crate) to_self_delay: u16,
96 pub(crate) max_accepted_htlcs: u16,
97 pub(crate) funding_pubkey: PublicKey,
98 pub(crate) revocation_basepoint: PublicKey,
99 pub(crate) payment_basepoint: PublicKey,
100 pub(crate) delayed_payment_basepoint: PublicKey,
101 pub(crate) htlc_basepoint: PublicKey,
102 pub(crate) first_per_commitment_point: PublicKey,
103 pub(crate) channel_flags: u8,
104 pub(crate) shutdown_scriptpubkey: OptionalField<Script>,
107 /// An accept_channel message to be sent or received from a peer
109 pub struct AcceptChannel {
110 pub(crate) temporary_channel_id: [u8; 32],
111 pub(crate) dust_limit_satoshis: u64,
112 pub(crate) max_htlc_value_in_flight_msat: u64,
113 pub(crate) channel_reserve_satoshis: u64,
114 pub(crate) htlc_minimum_msat: u64,
115 pub(crate) minimum_depth: u32,
116 pub(crate) to_self_delay: u16,
117 pub(crate) max_accepted_htlcs: u16,
118 pub(crate) funding_pubkey: PublicKey,
119 pub(crate) revocation_basepoint: PublicKey,
120 pub(crate) payment_basepoint: PublicKey,
121 pub(crate) delayed_payment_basepoint: PublicKey,
122 pub(crate) htlc_basepoint: PublicKey,
123 pub(crate) first_per_commitment_point: PublicKey,
124 pub(crate) shutdown_scriptpubkey: OptionalField<Script>
127 /// A funding_created message to be sent or received from a peer
129 pub struct FundingCreated {
130 pub(crate) temporary_channel_id: [u8; 32],
131 pub(crate) funding_txid: Sha256dHash,
132 pub(crate) funding_output_index: u16,
133 pub(crate) signature: Signature,
136 /// A funding_signed message to be sent or received from a peer
138 pub struct FundingSigned {
139 pub(crate) channel_id: [u8; 32],
140 pub(crate) signature: Signature,
143 /// A funding_locked message to be sent or received from a peer
144 #[derive(Clone, PartialEq)]
145 #[allow(missing_docs)]
146 pub struct FundingLocked {
147 pub channel_id: [u8; 32],
148 pub next_per_commitment_point: PublicKey,
151 /// A shutdown message to be sent or received from a peer
152 #[derive(Clone, PartialEq)]
153 pub struct Shutdown {
154 pub(crate) channel_id: [u8; 32],
155 pub(crate) scriptpubkey: Script,
158 /// A closing_signed message to be sent or received from a peer
159 #[derive(Clone, PartialEq)]
160 pub struct ClosingSigned {
161 pub(crate) channel_id: [u8; 32],
162 pub(crate) fee_satoshis: u64,
163 pub(crate) signature: Signature,
166 /// An update_add_htlc message to be sent or received from a peer
167 #[derive(Clone, PartialEq)]
168 pub struct UpdateAddHTLC {
169 pub(crate) channel_id: [u8; 32],
170 pub(crate) htlc_id: u64,
171 pub(crate) amount_msat: u64,
172 pub(crate) payment_hash: PaymentHash,
173 pub(crate) cltv_expiry: u32,
174 pub(crate) onion_routing_packet: OnionPacket,
177 /// An update_fulfill_htlc message to be sent or received from a peer
178 #[derive(Clone, PartialEq)]
179 pub struct UpdateFulfillHTLC {
180 pub(crate) channel_id: [u8; 32],
181 pub(crate) htlc_id: u64,
182 pub(crate) payment_preimage: PaymentPreimage,
185 /// An update_fail_htlc message to be sent or received from a peer
186 #[derive(Clone, PartialEq)]
187 pub struct UpdateFailHTLC {
188 pub(crate) channel_id: [u8; 32],
189 pub(crate) htlc_id: u64,
190 pub(crate) reason: OnionErrorPacket,
193 /// An update_fail_malformed_htlc message to be sent or received from a peer
194 #[derive(Clone, PartialEq)]
195 pub struct UpdateFailMalformedHTLC {
196 pub(crate) channel_id: [u8; 32],
197 pub(crate) htlc_id: u64,
198 pub(crate) sha256_of_onion: [u8; 32],
199 pub(crate) failure_code: u16,
202 /// A commitment_signed message to be sent or received from a peer
203 #[derive(Clone, PartialEq)]
204 pub struct CommitmentSigned {
205 pub(crate) channel_id: [u8; 32],
206 pub(crate) signature: Signature,
207 pub(crate) htlc_signatures: Vec<Signature>,
210 /// A revoke_and_ack message to be sent or received from a peer
211 #[derive(Clone, PartialEq)]
212 pub struct RevokeAndACK {
213 pub(crate) channel_id: [u8; 32],
214 pub(crate) per_commitment_secret: [u8; 32],
215 pub(crate) next_per_commitment_point: PublicKey,
218 /// An update_fee message to be sent or received from a peer
219 #[derive(PartialEq, Clone)]
220 pub struct UpdateFee {
221 pub(crate) channel_id: [u8; 32],
222 pub(crate) feerate_per_kw: u32,
225 #[derive(PartialEq, Clone)]
226 pub(crate) struct DataLossProtect {
227 pub(crate) your_last_per_commitment_secret: [u8; 32],
228 pub(crate) my_current_per_commitment_point: PublicKey,
231 /// A channel_reestablish message to be sent or received from a peer
232 #[derive(PartialEq, Clone)]
233 pub struct ChannelReestablish {
234 pub(crate) channel_id: [u8; 32],
235 pub(crate) next_local_commitment_number: u64,
236 pub(crate) next_remote_commitment_number: u64,
237 pub(crate) data_loss_protect: OptionalField<DataLossProtect>,
240 /// An announcement_signatures message to be sent or received from a peer
241 #[derive(PartialEq, Clone, Debug)]
242 pub struct AnnouncementSignatures {
243 pub(crate) channel_id: [u8; 32],
244 pub(crate) short_channel_id: u64,
245 pub(crate) node_signature: Signature,
246 pub(crate) bitcoin_signature: Signature,
249 /// An address which can be used to connect to a remote peer
250 #[derive(Clone, PartialEq, Debug)]
251 pub enum NetAddress {
252 /// An IPv4 address/port on which the peer is listening.
254 /// The 4-byte IPv4 address
256 /// The port on which the node is listening
259 /// An IPv6 address/port on which the peer is listening.
261 /// The 16-byte IPv6 address
263 /// The port on which the node is listening
266 /// An old-style Tor onion address/port on which the peer is listening.
268 /// The bytes (usually encoded in base32 with ".onion" appended)
270 /// The port on which the node is listening
273 /// A new-style Tor onion address/port on which the peer is listening.
274 /// To create the human-readable "hostname", concatenate ed25519_pubkey, checksum, and version,
275 /// wrap as base32 and append ".onion".
277 /// The ed25519 long-term public key of the peer
278 ed25519_pubkey: [u8; 32],
279 /// The checksum of the pubkey and version, as included in the onion address
281 /// The version byte, as defined by the Tor Onion v3 spec.
283 /// The port on which the node is listening
288 fn get_id(&self) -> u8 {
290 &NetAddress::IPv4 {..} => { 1 },
291 &NetAddress::IPv6 {..} => { 2 },
292 &NetAddress::OnionV2 {..} => { 3 },
293 &NetAddress::OnionV3 {..} => { 4 },
297 /// Strict byte-length of address descriptor, 1-byte type not recorded
298 fn len(&self) -> u16 {
300 &NetAddress::IPv4 { .. } => { 6 },
301 &NetAddress::IPv6 { .. } => { 18 },
302 &NetAddress::OnionV2 { .. } => { 12 },
303 &NetAddress::OnionV3 { .. } => { 37 },
308 /// A "set" of addresses which enforces that there can be only up to one of each net address type.
309 pub struct NetAddressSet {
310 v4: Option<NetAddress>,
311 v6: Option<NetAddress>,
312 onion2: Option<NetAddress>,
313 onion3: Option<NetAddress>,
316 /// Creates a new, empty, NetAddressSet
317 pub fn new() -> Self {
318 NetAddressSet { v4: None, v6: None, onion2: None, onion3: None }
321 /// Sets the IPv4 socket address in this set, overwriting any previous IPv4 socket addresses
323 pub fn set_v4(&mut self, addr: [u8; 4], port: u16) {
324 self.v4 = Some(NetAddress::IPv4 { addr, port });
326 /// Sets the IPv6 socket address in this set, overwriting any previous IPv4 socket addresses
328 pub fn set_v6(&mut self, addr: [u8; 16], port: u16) {
329 self.v6 = Some(NetAddress::IPv6 { addr, port });
331 /// Sets the Tor Onion v2 socket address in this set, overwriting any previous IPv4 socket
332 /// address (if any).
333 pub fn set_onion_v2(&mut self, addr: [u8; 10], port: u16) {
334 self.onion2 = Some(NetAddress::OnionV2 { addr, port });
336 /// Sets the Tor Onion v3 socket address in this set, overwriting any previous IPv4 socket
337 /// address (if any).
338 pub fn set_onion_v3(&mut self, ed25519_pubkey: [u8; 32], checksum: u16, version: u8, port: u16) {
339 self.onion3 = Some(NetAddress::OnionV3 { ed25519_pubkey, checksum, version, port });
342 pub(crate) fn to_vec(mut self) -> Vec<NetAddress> {
343 let mut res = Vec::new();
344 if let Some(addr) = self.v4.take() {
347 if let Some(addr) = self.v6.take() {
350 if let Some(addr) = self.onion2.take() {
353 if let Some(addr) = self.onion3.take() {
360 impl Writeable for NetAddress {
361 fn write<W: Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error> {
363 &NetAddress::IPv4 { ref addr, ref port } => {
368 &NetAddress::IPv6 { ref addr, ref port } => {
373 &NetAddress::OnionV2 { ref addr, ref port } => {
378 &NetAddress::OnionV3 { ref ed25519_pubkey, ref checksum, ref version, ref port } => {
380 ed25519_pubkey.write(writer)?;
381 checksum.write(writer)?;
382 version.write(writer)?;
390 impl<R: ::std::io::Read> Readable<R> for Result<NetAddress, u8> {
391 fn read(reader: &mut R) -> Result<Result<NetAddress, u8>, DecodeError> {
392 let byte = <u8 as Readable<R>>::read(reader)?;
395 Ok(Ok(NetAddress::IPv4 {
396 addr: Readable::read(reader)?,
397 port: Readable::read(reader)?,
401 Ok(Ok(NetAddress::IPv6 {
402 addr: Readable::read(reader)?,
403 port: Readable::read(reader)?,
407 Ok(Ok(NetAddress::OnionV2 {
408 addr: Readable::read(reader)?,
409 port: Readable::read(reader)?,
413 Ok(Ok(NetAddress::OnionV3 {
414 ed25519_pubkey: Readable::read(reader)?,
415 checksum: Readable::read(reader)?,
416 version: Readable::read(reader)?,
417 port: Readable::read(reader)?,
420 _ => return Ok(Err(byte)),
425 // Only exposed as broadcast of node_announcement should be filtered by node_id
426 /// The unsigned part of a node_announcement
427 #[derive(PartialEq, Clone, Debug)]
428 pub struct UnsignedNodeAnnouncement {
429 pub(crate) features: NodeFeatures,
430 pub(crate) timestamp: u32,
431 /// The node_id this announcement originated from (don't rebroadcast the node_announcement back
433 pub node_id: PublicKey,
434 pub(crate) rgb: [u8; 3],
435 pub(crate) alias: [u8; 32],
436 /// List of addresses on which this node is reachable. Note that you may only have up to one
437 /// address of each type, if you have more, they may be silently discarded or we may panic!
438 pub(crate) addresses: Vec<NetAddress>,
439 pub(crate) excess_address_data: Vec<u8>,
440 pub(crate) excess_data: Vec<u8>,
442 #[derive(PartialEq, Clone)]
443 /// A node_announcement message to be sent or received from a peer
444 pub struct NodeAnnouncement {
445 pub(crate) signature: Signature,
446 pub(crate) contents: UnsignedNodeAnnouncement,
449 // Only exposed as broadcast of channel_announcement should be filtered by node_id
450 /// The unsigned part of a channel_announcement
451 #[derive(PartialEq, Clone, Debug)]
452 pub struct UnsignedChannelAnnouncement {
453 pub(crate) features: ChannelFeatures,
454 pub(crate) chain_hash: Sha256dHash,
455 pub(crate) short_channel_id: u64,
456 /// One of the two node_ids which are endpoints of this channel
457 pub node_id_1: PublicKey,
458 /// The other of the two node_ids which are endpoints of this channel
459 pub node_id_2: PublicKey,
460 pub(crate) bitcoin_key_1: PublicKey,
461 pub(crate) bitcoin_key_2: PublicKey,
462 pub(crate) excess_data: Vec<u8>,
464 /// A channel_announcement message to be sent or received from a peer
465 #[derive(PartialEq, Clone, Debug)]
466 pub struct ChannelAnnouncement {
467 pub(crate) node_signature_1: Signature,
468 pub(crate) node_signature_2: Signature,
469 pub(crate) bitcoin_signature_1: Signature,
470 pub(crate) bitcoin_signature_2: Signature,
471 pub(crate) contents: UnsignedChannelAnnouncement,
474 #[derive(PartialEq, Clone, Debug)]
475 pub(crate) struct UnsignedChannelUpdate {
476 pub(crate) chain_hash: Sha256dHash,
477 pub(crate) short_channel_id: u64,
478 pub(crate) timestamp: u32,
479 pub(crate) flags: u16,
480 pub(crate) cltv_expiry_delta: u16,
481 pub(crate) htlc_minimum_msat: u64,
482 pub(crate) fee_base_msat: u32,
483 pub(crate) fee_proportional_millionths: u32,
484 pub(crate) excess_data: Vec<u8>,
486 /// A channel_update message to be sent or received from a peer
487 #[derive(PartialEq, Clone, Debug)]
488 pub struct ChannelUpdate {
489 pub(crate) signature: Signature,
490 pub(crate) contents: UnsignedChannelUpdate,
493 /// Used to put an error message in a LightningError
495 pub enum ErrorAction {
496 /// The peer took some action which made us think they were useless. Disconnect them.
498 /// An error message which we should make an effort to send before we disconnect.
499 msg: Option<ErrorMessage>
501 /// The peer did something harmless that we weren't able to process, just log and ignore
503 /// The peer did something incorrect. Tell them.
505 /// The message to send.
510 /// An Err type for failure to process messages.
511 pub struct LightningError {
512 /// A human-readable message describing the error
513 pub err: &'static str,
514 /// The action which should be taken against the offending peer.
515 pub action: ErrorAction,
518 /// Struct used to return values from revoke_and_ack messages, containing a bunch of commitment
519 /// transaction updates if they were pending.
520 #[derive(PartialEq, Clone)]
521 pub struct CommitmentUpdate {
522 /// update_add_htlc messages which should be sent
523 pub update_add_htlcs: Vec<UpdateAddHTLC>,
524 /// update_fulfill_htlc messages which should be sent
525 pub update_fulfill_htlcs: Vec<UpdateFulfillHTLC>,
526 /// update_fail_htlc messages which should be sent
527 pub update_fail_htlcs: Vec<UpdateFailHTLC>,
528 /// update_fail_malformed_htlc messages which should be sent
529 pub update_fail_malformed_htlcs: Vec<UpdateFailMalformedHTLC>,
530 /// An update_fee message which should be sent
531 pub update_fee: Option<UpdateFee>,
532 /// Finally, the commitment_signed message which should be sent
533 pub commitment_signed: CommitmentSigned,
536 /// The information we received from a peer along the route of a payment we originated. This is
537 /// returned by ChannelMessageHandler::handle_update_fail_htlc to be passed into
538 /// RoutingMessageHandler::handle_htlc_fail_channel_update to update our network map.
540 pub enum HTLCFailChannelUpdate {
541 /// We received an error which included a full ChannelUpdate message.
542 ChannelUpdateMessage {
543 /// The unwrapped message we received
546 /// We received an error which indicated only that a channel has been closed
548 /// The short_channel_id which has now closed.
549 short_channel_id: u64,
550 /// when this true, this channel should be permanently removed from the
551 /// consideration. Otherwise, this channel can be restored as new channel_update is received
554 /// We received an error which indicated only that a node has failed
556 /// The node_id that has failed.
558 /// when this true, node should be permanently removed from the
559 /// consideration. Otherwise, the channels connected to this node can be
560 /// restored as new channel_update is received
565 /// Messages could have optional fields to use with extended features
566 /// As we wish to serialize these differently from Option<T>s (Options get a tag byte, but
567 /// OptionalFeild simply gets Present if there are enough bytes to read into it), we have a
568 /// separate enum type for them.
569 #[derive(Clone, PartialEq)]
570 pub enum OptionalField<T> {
571 /// Optional field is included in message
573 /// Optional field is absent in message
577 /// A trait to describe an object which can receive channel messages.
579 /// Messages MAY be called in parallel when they originate from different their_node_ids, however
580 /// they MUST NOT be called in parallel when the two calls have the same their_node_id.
581 pub trait ChannelMessageHandler : events::MessageSendEventsProvider + Send + Sync {
583 /// Handle an incoming open_channel message from the given peer.
584 fn handle_open_channel(&self, their_node_id: &PublicKey, their_features: InitFeatures, msg: &OpenChannel);
585 /// Handle an incoming accept_channel message from the given peer.
586 fn handle_accept_channel(&self, their_node_id: &PublicKey, their_features: InitFeatures, msg: &AcceptChannel);
587 /// Handle an incoming funding_created message from the given peer.
588 fn handle_funding_created(&self, their_node_id: &PublicKey, msg: &FundingCreated);
589 /// Handle an incoming funding_signed message from the given peer.
590 fn handle_funding_signed(&self, their_node_id: &PublicKey, msg: &FundingSigned);
591 /// Handle an incoming funding_locked message from the given peer.
592 fn handle_funding_locked(&self, their_node_id: &PublicKey, msg: &FundingLocked);
595 /// Handle an incoming shutdown message from the given peer.
596 fn handle_shutdown(&self, their_node_id: &PublicKey, msg: &Shutdown);
597 /// Handle an incoming closing_signed message from the given peer.
598 fn handle_closing_signed(&self, their_node_id: &PublicKey, msg: &ClosingSigned);
601 /// Handle an incoming update_add_htlc message from the given peer.
602 fn handle_update_add_htlc(&self, their_node_id: &PublicKey, msg: &UpdateAddHTLC);
603 /// Handle an incoming update_fulfill_htlc message from the given peer.
604 fn handle_update_fulfill_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFulfillHTLC);
605 /// Handle an incoming update_fail_htlc message from the given peer.
606 fn handle_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFailHTLC);
607 /// Handle an incoming update_fail_malformed_htlc message from the given peer.
608 fn handle_update_fail_malformed_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFailMalformedHTLC);
609 /// Handle an incoming commitment_signed message from the given peer.
610 fn handle_commitment_signed(&self, their_node_id: &PublicKey, msg: &CommitmentSigned);
611 /// Handle an incoming revoke_and_ack message from the given peer.
612 fn handle_revoke_and_ack(&self, their_node_id: &PublicKey, msg: &RevokeAndACK);
614 /// Handle an incoming update_fee message from the given peer.
615 fn handle_update_fee(&self, their_node_id: &PublicKey, msg: &UpdateFee);
617 // Channel-to-announce:
618 /// Handle an incoming announcement_signatures message from the given peer.
619 fn handle_announcement_signatures(&self, their_node_id: &PublicKey, msg: &AnnouncementSignatures);
621 // Connection loss/reestablish:
622 /// Indicates a connection to the peer failed/an existing connection was lost. If no connection
623 /// is believed to be possible in the future (eg they're sending us messages we don't
624 /// understand or indicate they require unknown feature bits), no_connection_possible is set
625 /// and any outstanding channels should be failed.
626 fn peer_disconnected(&self, their_node_id: &PublicKey, no_connection_possible: bool);
628 /// Handle a peer reconnecting, possibly generating channel_reestablish message(s).
629 fn peer_connected(&self, their_node_id: &PublicKey, msg: &Init);
630 /// Handle an incoming channel_reestablish message from the given peer.
631 fn handle_channel_reestablish(&self, their_node_id: &PublicKey, msg: &ChannelReestablish);
634 /// Handle an incoming error message from the given peer.
635 fn handle_error(&self, their_node_id: &PublicKey, msg: &ErrorMessage);
638 /// A trait to describe an object which can receive routing messages.
639 pub trait RoutingMessageHandler : Send + Sync {
640 /// Handle an incoming node_announcement message, returning true if it should be forwarded on,
641 /// false or returning an Err otherwise.
642 fn handle_node_announcement(&self, msg: &NodeAnnouncement) -> Result<bool, LightningError>;
643 /// Handle a channel_announcement message, returning true if it should be forwarded on, false
644 /// or returning an Err otherwise.
645 fn handle_channel_announcement(&self, msg: &ChannelAnnouncement) -> Result<bool, LightningError>;
646 /// Handle an incoming channel_update message, returning true if it should be forwarded on,
647 /// false or returning an Err otherwise.
648 fn handle_channel_update(&self, msg: &ChannelUpdate) -> Result<bool, LightningError>;
649 /// Handle some updates to the route graph that we learned due to an outbound failed payment.
650 fn handle_htlc_fail_channel_update(&self, update: &HTLCFailChannelUpdate);
651 /// Gets a subset of the channel announcements and updates required to dump our routing table
652 /// to a remote node, starting at the short_channel_id indicated by starting_point and
653 /// including batch_amount entries.
654 fn get_next_channel_announcements(&self, starting_point: u64, batch_amount: u8) -> Vec<(ChannelAnnouncement, ChannelUpdate, ChannelUpdate)>;
655 /// Gets a subset of the node announcements required to dump our routing table to a remote node,
656 /// starting at the node *after* the provided publickey and including batch_amount entries.
657 /// If None is provided for starting_point, we start at the first node.
658 fn get_next_node_announcements(&self, starting_point: Option<&PublicKey>, batch_amount: u8) -> Vec<NodeAnnouncement>;
661 mod fuzzy_internal_msgs {
662 // These types aren't intended to be pub, but are exposed for direct fuzzing (as we deserialize
663 // them from untrusted input):
665 pub(crate) enum OnionHopDataFormat {
666 Legacy { // aka Realm-0
667 short_channel_id: u64,
670 short_channel_id: u64,
675 pub struct OnionHopData {
676 pub(crate) format: OnionHopDataFormat,
677 pub(crate) amt_to_forward: u64,
678 pub(crate) outgoing_cltv_value: u32,
679 // 12 bytes of 0-padding for Legacy format
682 pub struct DecodedOnionErrorPacket {
683 pub(crate) hmac: [u8; 32],
684 pub(crate) failuremsg: Vec<u8>,
685 pub(crate) pad: Vec<u8>,
688 #[cfg(feature = "fuzztarget")]
689 pub use self::fuzzy_internal_msgs::*;
690 #[cfg(not(feature = "fuzztarget"))]
691 pub(crate) use self::fuzzy_internal_msgs::*;
694 pub(crate) struct OnionPacket {
695 pub(crate) version: u8,
696 /// In order to ensure we always return an error on Onion decode in compliance with BOLT 4, we
697 /// have to deserialize OnionPackets contained in UpdateAddHTLCs even if the ephemeral public
698 /// key (here) is bogus, so we hold a Result instead of a PublicKey as we'd like.
699 pub(crate) public_key: Result<PublicKey, secp256k1::Error>,
700 pub(crate) hop_data: [u8; 20*65],
701 pub(crate) hmac: [u8; 32],
704 impl PartialEq for OnionPacket {
705 fn eq(&self, other: &OnionPacket) -> bool {
706 for (i, j) in self.hop_data.iter().zip(other.hop_data.iter()) {
707 if i != j { return false; }
709 self.version == other.version &&
710 self.public_key == other.public_key &&
711 self.hmac == other.hmac
715 #[derive(Clone, PartialEq)]
716 pub(crate) struct OnionErrorPacket {
717 // This really should be a constant size slice, but the spec lets these things be up to 128KB?
718 // (TODO) We limit it in decode to much lower...
719 pub(crate) data: Vec<u8>,
722 impl Error for DecodeError {
723 fn description(&self) -> &str {
725 DecodeError::UnknownVersion => "Unknown realm byte in Onion packet",
726 DecodeError::UnknownRequiredFeature => "Unknown required feature preventing decode",
727 DecodeError::InvalidValue => "Nonsense bytes didn't map to the type they were interpreted as",
728 DecodeError::ShortRead => "Packet extended beyond the provided bytes",
729 DecodeError::ExtraAddressesPerType => "More than one address of a single type",
730 DecodeError::BadLengthDescriptor => "A length descriptor in the packet didn't describe the later data correctly",
731 DecodeError::Io(ref e) => e.description(),
735 impl fmt::Display for DecodeError {
736 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
737 f.write_str(self.description())
741 impl fmt::Debug for LightningError {
742 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
743 f.write_str(self.err)
747 impl From<::std::io::Error> for DecodeError {
748 fn from(e: ::std::io::Error) -> Self {
749 if e.kind() == ::std::io::ErrorKind::UnexpectedEof {
750 DecodeError::ShortRead
757 impl Writeable for OptionalField<Script> {
758 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
760 OptionalField::Present(ref script) => {
761 // Note that Writeable for script includes the 16-bit length tag for us
764 OptionalField::Absent => {}
770 impl<R: Read> Readable<R> for OptionalField<Script> {
771 fn read(r: &mut R) -> Result<Self, DecodeError> {
772 match <u16 as Readable<R>>::read(r) {
774 let mut buf = vec![0; len as usize];
775 r.read_exact(&mut buf)?;
776 Ok(OptionalField::Present(Script::from(buf)))
778 Err(DecodeError::ShortRead) => Ok(OptionalField::Absent),
784 impl_writeable_len_match!(AcceptChannel, {
785 {AcceptChannel{ shutdown_scriptpubkey: OptionalField::Present(ref script), .. }, 270 + 2 + script.len()},
788 temporary_channel_id,
790 max_htlc_value_in_flight_msat,
791 channel_reserve_satoshis,
797 revocation_basepoint,
799 delayed_payment_basepoint,
801 first_per_commitment_point,
802 shutdown_scriptpubkey
805 impl_writeable!(AnnouncementSignatures, 32+8+64*2, {
812 impl Writeable for ChannelReestablish {
813 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
814 w.size_hint(if let OptionalField::Present(..) = self.data_loss_protect { 32+2*8+33+32 } else { 32+2*8 });
815 self.channel_id.write(w)?;
816 self.next_local_commitment_number.write(w)?;
817 self.next_remote_commitment_number.write(w)?;
818 match self.data_loss_protect {
819 OptionalField::Present(ref data_loss_protect) => {
820 (*data_loss_protect).your_last_per_commitment_secret.write(w)?;
821 (*data_loss_protect).my_current_per_commitment_point.write(w)?;
823 OptionalField::Absent => {}
829 impl<R: Read> Readable<R> for ChannelReestablish{
830 fn read(r: &mut R) -> Result<Self, DecodeError> {
832 channel_id: Readable::read(r)?,
833 next_local_commitment_number: Readable::read(r)?,
834 next_remote_commitment_number: Readable::read(r)?,
836 match <[u8; 32] as Readable<R>>::read(r) {
837 Ok(your_last_per_commitment_secret) =>
838 OptionalField::Present(DataLossProtect {
839 your_last_per_commitment_secret,
840 my_current_per_commitment_point: Readable::read(r)?,
842 Err(DecodeError::ShortRead) => OptionalField::Absent,
843 Err(e) => return Err(e)
850 impl_writeable!(ClosingSigned, 32+8+64, {
856 impl_writeable_len_match!(CommitmentSigned, {
857 { CommitmentSigned { ref htlc_signatures, .. }, 32+64+2+htlc_signatures.len()*64 }
864 impl_writeable_len_match!(DecodedOnionErrorPacket, {
865 { DecodedOnionErrorPacket { ref failuremsg, ref pad, .. }, 32 + 4 + failuremsg.len() + pad.len() }
872 impl_writeable!(FundingCreated, 32+32+2+64, {
873 temporary_channel_id,
875 funding_output_index,
879 impl_writeable!(FundingSigned, 32+64, {
884 impl_writeable!(FundingLocked, 32+33, {
886 next_per_commitment_point
889 impl Writeable for Init {
890 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
891 // global_features gets the bottom 13 bits of our features, and local_features gets all of
892 // our relevant feature bits. This keeps us compatible with old nodes.
893 self.features.write_up_to_13(w)?;
894 self.features.write(w)
898 impl<R: Read> Readable<R> for Init {
899 fn read(r: &mut R) -> Result<Self, DecodeError> {
900 let global_features: InitFeatures = Readable::read(r)?;
901 let features: InitFeatures = Readable::read(r)?;
903 features: features.or(global_features),
908 impl_writeable_len_match!(OpenChannel, {
909 { OpenChannel { shutdown_scriptpubkey: OptionalField::Present(ref script), .. }, 319 + 2 + script.len() },
913 temporary_channel_id,
917 max_htlc_value_in_flight_msat,
918 channel_reserve_satoshis,
924 revocation_basepoint,
926 delayed_payment_basepoint,
928 first_per_commitment_point,
930 shutdown_scriptpubkey
933 impl_writeable!(RevokeAndACK, 32+32+33, {
935 per_commitment_secret,
936 next_per_commitment_point
939 impl_writeable_len_match!(Shutdown, {
940 { Shutdown { ref scriptpubkey, .. }, 32 + 2 + scriptpubkey.len() }
946 impl_writeable_len_match!(UpdateFailHTLC, {
947 { UpdateFailHTLC { ref reason, .. }, 32 + 10 + reason.data.len() }
954 impl_writeable!(UpdateFailMalformedHTLC, 32+8+32+2, {
961 impl_writeable!(UpdateFee, 32+4, {
966 impl_writeable!(UpdateFulfillHTLC, 32+8+32, {
972 impl_writeable_len_match!(OnionErrorPacket, {
973 { OnionErrorPacket { ref data, .. }, 2 + data.len() }
978 impl Writeable for OnionPacket {
979 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
980 w.size_hint(1 + 33 + 20*65 + 32);
981 self.version.write(w)?;
982 match self.public_key {
983 Ok(pubkey) => pubkey.write(w)?,
984 Err(_) => [0u8;33].write(w)?,
986 w.write_all(&self.hop_data)?;
992 impl<R: Read> Readable<R> for OnionPacket {
993 fn read(r: &mut R) -> Result<Self, DecodeError> {
995 version: Readable::read(r)?,
997 let mut buf = [0u8;33];
998 r.read_exact(&mut buf)?;
999 PublicKey::from_slice(&buf)
1001 hop_data: Readable::read(r)?,
1002 hmac: Readable::read(r)?,
1007 impl_writeable!(UpdateAddHTLC, 32+8+8+32+4+1366, {
1013 onion_routing_packet
1016 impl Writeable for OnionHopData {
1017 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1020 OnionHopDataFormat::Legacy { short_channel_id } => {
1022 short_channel_id.write(w)?;
1023 self.amt_to_forward.write(w)?;
1024 self.outgoing_cltv_value.write(w)?;
1026 OnionHopDataFormat::NonFinalNode { short_channel_id } => {
1027 encode_varint_length_prefixed_tlv!(w, {
1028 (2, HighZeroBytesDroppedVarInt(self.amt_to_forward)),
1029 (4, HighZeroBytesDroppedVarInt(self.outgoing_cltv_value)),
1030 (6, short_channel_id)
1033 OnionHopDataFormat::FinalNode => {
1034 encode_varint_length_prefixed_tlv!(w, {
1035 (2, HighZeroBytesDroppedVarInt(self.amt_to_forward)),
1036 (4, HighZeroBytesDroppedVarInt(self.outgoing_cltv_value))
1041 OnionHopDataFormat::Legacy { .. } => {
1042 w.write_all(&[0;12])?;
1050 impl<R: Read> Readable<R> for OnionHopData {
1051 fn read(mut r: &mut R) -> Result<Self, DecodeError> {
1052 use bitcoin::consensus::encode::{Decodable, Error, VarInt};
1053 let v: VarInt = Decodable::consensus_decode(&mut r)
1054 .map_err(|e| match e {
1055 Error::Io(ioe) => DecodeError::from(ioe),
1056 _ => DecodeError::InvalidValue
1058 let (format, amt, cltv_value) = if v.0 != 0 {
1059 let mut rd = FixedLengthReader::new(r, v.0);
1060 let mut amt = HighZeroBytesDroppedVarInt(0u64);
1061 let mut cltv_value = HighZeroBytesDroppedVarInt(0u32);
1062 let mut short_id: Option<u64> = None;
1063 decode_tlv!(&mut rd, {
1069 rd.eat_remaining().map_err(|_| DecodeError::ShortRead)?;
1070 let format = if let Some(short_channel_id) = short_id {
1071 OnionHopDataFormat::NonFinalNode {
1075 OnionHopDataFormat::FinalNode
1077 (format, amt.0, cltv_value.0)
1079 let format = OnionHopDataFormat::Legacy {
1080 short_channel_id: Readable::read(r)?,
1082 let amt: u64 = Readable::read(r)?;
1083 let cltv_value: u32 = Readable::read(r)?;
1084 r.read_exact(&mut [0; 12])?;
1085 (format, amt, cltv_value)
1090 amt_to_forward: amt,
1091 outgoing_cltv_value: cltv_value,
1096 impl Writeable for Ping {
1097 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1098 w.size_hint(self.byteslen as usize + 4);
1099 self.ponglen.write(w)?;
1100 vec![0u8; self.byteslen as usize].write(w)?; // size-unchecked write
1105 impl<R: Read> Readable<R> for Ping {
1106 fn read(r: &mut R) -> Result<Self, DecodeError> {
1108 ponglen: Readable::read(r)?,
1110 let byteslen = Readable::read(r)?;
1111 r.read_exact(&mut vec![0u8; byteslen as usize][..])?;
1118 impl Writeable for Pong {
1119 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1120 w.size_hint(self.byteslen as usize + 2);
1121 vec![0u8; self.byteslen as usize].write(w)?; // size-unchecked write
1126 impl<R: Read> Readable<R> for Pong {
1127 fn read(r: &mut R) -> Result<Self, DecodeError> {
1130 let byteslen = Readable::read(r)?;
1131 r.read_exact(&mut vec![0u8; byteslen as usize][..])?;
1138 impl Writeable for UnsignedChannelAnnouncement {
1139 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1140 w.size_hint(2 + 2*32 + 4*33 + self.features.byte_count() + self.excess_data.len());
1141 self.features.write(w)?;
1142 self.chain_hash.write(w)?;
1143 self.short_channel_id.write(w)?;
1144 self.node_id_1.write(w)?;
1145 self.node_id_2.write(w)?;
1146 self.bitcoin_key_1.write(w)?;
1147 self.bitcoin_key_2.write(w)?;
1148 w.write_all(&self.excess_data[..])?;
1153 impl<R: Read> Readable<R> for UnsignedChannelAnnouncement {
1154 fn read(r: &mut R) -> Result<Self, DecodeError> {
1156 features: Readable::read(r)?,
1157 chain_hash: Readable::read(r)?,
1158 short_channel_id: Readable::read(r)?,
1159 node_id_1: Readable::read(r)?,
1160 node_id_2: Readable::read(r)?,
1161 bitcoin_key_1: Readable::read(r)?,
1162 bitcoin_key_2: Readable::read(r)?,
1164 let mut excess_data = vec![];
1165 r.read_to_end(&mut excess_data)?;
1172 impl_writeable_len_match!(ChannelAnnouncement, {
1173 { ChannelAnnouncement { contents: UnsignedChannelAnnouncement {ref features, ref excess_data, ..}, .. },
1174 2 + 2*32 + 4*33 + features.byte_count() + excess_data.len() + 4*64 }
1178 bitcoin_signature_1,
1179 bitcoin_signature_2,
1183 impl Writeable for UnsignedChannelUpdate {
1184 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1185 w.size_hint(64 + self.excess_data.len());
1186 self.chain_hash.write(w)?;
1187 self.short_channel_id.write(w)?;
1188 self.timestamp.write(w)?;
1189 self.flags.write(w)?;
1190 self.cltv_expiry_delta.write(w)?;
1191 self.htlc_minimum_msat.write(w)?;
1192 self.fee_base_msat.write(w)?;
1193 self.fee_proportional_millionths.write(w)?;
1194 w.write_all(&self.excess_data[..])?;
1199 impl<R: Read> Readable<R> for UnsignedChannelUpdate {
1200 fn read(r: &mut R) -> Result<Self, DecodeError> {
1202 chain_hash: Readable::read(r)?,
1203 short_channel_id: Readable::read(r)?,
1204 timestamp: Readable::read(r)?,
1205 flags: Readable::read(r)?,
1206 cltv_expiry_delta: Readable::read(r)?,
1207 htlc_minimum_msat: Readable::read(r)?,
1208 fee_base_msat: Readable::read(r)?,
1209 fee_proportional_millionths: Readable::read(r)?,
1211 let mut excess_data = vec![];
1212 r.read_to_end(&mut excess_data)?;
1219 impl_writeable_len_match!(ChannelUpdate, {
1220 { ChannelUpdate { contents: UnsignedChannelUpdate {ref excess_data, ..}, .. },
1221 64 + excess_data.len() + 64 }
1227 impl Writeable for ErrorMessage {
1228 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1229 w.size_hint(32 + 2 + self.data.len());
1230 self.channel_id.write(w)?;
1231 (self.data.len() as u16).write(w)?;
1232 w.write_all(self.data.as_bytes())?;
1237 impl<R: Read> Readable<R> for ErrorMessage {
1238 fn read(r: &mut R) -> Result<Self, DecodeError> {
1240 channel_id: Readable::read(r)?,
1242 let mut sz: usize = <u16 as Readable<R>>::read(r)? as usize;
1243 let mut data = vec![];
1244 let data_len = r.read_to_end(&mut data)?;
1245 sz = cmp::min(data_len, sz);
1246 match String::from_utf8(data[..sz as usize].to_vec()) {
1248 Err(_) => return Err(DecodeError::InvalidValue),
1255 impl Writeable for UnsignedNodeAnnouncement {
1256 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1257 w.size_hint(64 + 76 + self.features.byte_count() + self.addresses.len()*38 + self.excess_address_data.len() + self.excess_data.len());
1258 self.features.write(w)?;
1259 self.timestamp.write(w)?;
1260 self.node_id.write(w)?;
1261 w.write_all(&self.rgb)?;
1262 self.alias.write(w)?;
1264 let mut addrs_to_encode = self.addresses.clone();
1265 addrs_to_encode.sort_unstable_by(|a, b| { a.get_id().cmp(&b.get_id()) });
1266 addrs_to_encode.dedup_by(|a, b| { a.get_id() == b.get_id() });
1267 let mut addr_len = 0;
1268 for addr in &addrs_to_encode {
1269 addr_len += 1 + addr.len();
1271 (addr_len + self.excess_address_data.len() as u16).write(w)?;
1272 for addr in addrs_to_encode {
1275 w.write_all(&self.excess_address_data[..])?;
1276 w.write_all(&self.excess_data[..])?;
1281 impl<R: Read> Readable<R> for UnsignedNodeAnnouncement {
1282 fn read(r: &mut R) -> Result<Self, DecodeError> {
1283 let features: NodeFeatures = Readable::read(r)?;
1284 let timestamp: u32 = Readable::read(r)?;
1285 let node_id: PublicKey = Readable::read(r)?;
1286 let mut rgb = [0; 3];
1287 r.read_exact(&mut rgb)?;
1288 let alias: [u8; 32] = Readable::read(r)?;
1290 let addr_len: u16 = Readable::read(r)?;
1291 let mut addresses: Vec<NetAddress> = Vec::with_capacity(4);
1292 let mut addr_readpos = 0;
1293 let mut excess = false;
1294 let mut excess_byte = 0;
1296 if addr_len <= addr_readpos { break; }
1297 match Readable::read(r) {
1300 NetAddress::IPv4 { .. } => {
1301 if addresses.len() > 0 {
1302 return Err(DecodeError::ExtraAddressesPerType);
1305 NetAddress::IPv6 { .. } => {
1306 if addresses.len() > 1 || (addresses.len() == 1 && addresses[0].get_id() != 1) {
1307 return Err(DecodeError::ExtraAddressesPerType);
1310 NetAddress::OnionV2 { .. } => {
1311 if addresses.len() > 2 || (addresses.len() > 0 && addresses.last().unwrap().get_id() > 2) {
1312 return Err(DecodeError::ExtraAddressesPerType);
1315 NetAddress::OnionV3 { .. } => {
1316 if addresses.len() > 3 || (addresses.len() > 0 && addresses.last().unwrap().get_id() > 3) {
1317 return Err(DecodeError::ExtraAddressesPerType);
1321 if addr_len < addr_readpos + 1 + addr.len() {
1322 return Err(DecodeError::BadLengthDescriptor);
1324 addr_readpos += (1 + addr.len()) as u16;
1325 addresses.push(addr);
1327 Ok(Err(unknown_descriptor)) => {
1329 excess_byte = unknown_descriptor;
1332 Err(DecodeError::ShortRead) => return Err(DecodeError::BadLengthDescriptor),
1333 Err(e) => return Err(e),
1337 let mut excess_data = vec![];
1338 let excess_address_data = if addr_readpos < addr_len {
1339 let mut excess_address_data = vec![0; (addr_len - addr_readpos) as usize];
1340 r.read_exact(&mut excess_address_data[if excess { 1 } else { 0 }..])?;
1342 excess_address_data[0] = excess_byte;
1347 excess_data.push(excess_byte);
1351 r.read_to_end(&mut excess_data)?;
1352 Ok(UnsignedNodeAnnouncement {
1359 excess_address_data,
1365 impl_writeable_len_match!(NodeAnnouncement, {
1366 { NodeAnnouncement { contents: UnsignedNodeAnnouncement { ref features, ref addresses, ref excess_address_data, ref excess_data, ..}, .. },
1367 64 + 76 + features.byte_count() + addresses.len()*38 + excess_address_data.len() + excess_data.len() }
1377 use ln::msgs::{ChannelFeatures, InitFeatures, NodeFeatures, OptionalField, OnionErrorPacket, OnionHopDataFormat};
1378 use ln::channelmanager::{PaymentPreimage, PaymentHash};
1379 use util::ser::{Writeable, Readable};
1381 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
1382 use bitcoin_hashes::hex::FromHex;
1383 use bitcoin::util::address::Address;
1384 use bitcoin::network::constants::Network;
1385 use bitcoin::blockdata::script::Builder;
1386 use bitcoin::blockdata::opcodes;
1388 use secp256k1::key::{PublicKey,SecretKey};
1389 use secp256k1::{Secp256k1, Message};
1391 use std::io::Cursor;
1394 fn encoding_channel_reestablish_no_secret() {
1395 let cr = msgs::ChannelReestablish {
1396 channel_id: [4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0],
1397 next_local_commitment_number: 3,
1398 next_remote_commitment_number: 4,
1399 data_loss_protect: OptionalField::Absent,
1402 let encoded_value = cr.encode();
1405 vec![4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 4]
1410 fn encoding_channel_reestablish_with_secret() {
1412 let secp_ctx = Secp256k1::new();
1413 PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&hex::decode("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap())
1416 let cr = msgs::ChannelReestablish {
1417 channel_id: [4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0],
1418 next_local_commitment_number: 3,
1419 next_remote_commitment_number: 4,
1420 data_loss_protect: OptionalField::Present(msgs::DataLossProtect { your_last_per_commitment_secret: [9;32], my_current_per_commitment_point: public_key}),
1423 let encoded_value = cr.encode();
1426 vec![4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 4, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 27, 132, 197, 86, 123, 18, 100, 64, 153, 93, 62, 213, 170, 186, 5, 101, 215, 30, 24, 52, 96, 72, 25, 255, 156, 23, 245, 233, 213, 221, 7, 143]
1430 macro_rules! get_keys_from {
1431 ($slice: expr, $secp_ctx: expr) => {
1433 let privkey = SecretKey::from_slice(&hex::decode($slice).unwrap()[..]).unwrap();
1434 let pubkey = PublicKey::from_secret_key(&$secp_ctx, &privkey);
1440 macro_rules! get_sig_on {
1441 ($privkey: expr, $ctx: expr, $string: expr) => {
1443 let sighash = Message::from_slice(&$string.into_bytes()[..]).unwrap();
1444 $ctx.sign(&sighash, &$privkey)
1450 fn encoding_announcement_signatures() {
1451 let secp_ctx = Secp256k1::new();
1452 let (privkey, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1453 let sig_1 = get_sig_on!(privkey, secp_ctx, String::from("01010101010101010101010101010101"));
1454 let sig_2 = get_sig_on!(privkey, secp_ctx, String::from("02020202020202020202020202020202"));
1455 let announcement_signatures = msgs::AnnouncementSignatures {
1456 channel_id: [4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0],
1457 short_channel_id: 2316138423780173,
1458 node_signature: sig_1,
1459 bitcoin_signature: sig_2,
1462 let encoded_value = announcement_signatures.encode();
1463 assert_eq!(encoded_value, hex::decode("040000000000000005000000000000000600000000000000070000000000000000083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073acf9953cef4700860f5967838eba2bae89288ad188ebf8b20bf995c3ea53a26df1876d0a3a0e13172ba286a673140190c02ba9da60a2e43a745188c8a83c7f3ef").unwrap());
1466 fn do_encoding_channel_announcement(unknown_features_bits: bool, non_bitcoin_chain_hash: bool, excess_data: bool) {
1467 let secp_ctx = Secp256k1::new();
1468 let (privkey_1, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1469 let (privkey_2, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1470 let (privkey_3, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1471 let (privkey_4, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1472 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1473 let sig_2 = get_sig_on!(privkey_2, secp_ctx, String::from("01010101010101010101010101010101"));
1474 let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
1475 let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
1476 let mut features = ChannelFeatures::supported();
1477 if unknown_features_bits {
1478 features = ChannelFeatures::from_le_bytes(vec![0xFF, 0xFF]);
1480 let unsigned_channel_announcement = msgs::UnsignedChannelAnnouncement {
1482 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1483 short_channel_id: 2316138423780173,
1484 node_id_1: pubkey_1,
1485 node_id_2: pubkey_2,
1486 bitcoin_key_1: pubkey_3,
1487 bitcoin_key_2: pubkey_4,
1488 excess_data: if excess_data { vec![10, 0, 0, 20, 0, 0, 30, 0, 0, 40] } else { Vec::new() },
1490 let channel_announcement = msgs::ChannelAnnouncement {
1491 node_signature_1: sig_1,
1492 node_signature_2: sig_2,
1493 bitcoin_signature_1: sig_3,
1494 bitcoin_signature_2: sig_4,
1495 contents: unsigned_channel_announcement,
1497 let encoded_value = channel_announcement.encode();
1498 let mut target_value = hex::decode("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").unwrap();
1499 if unknown_features_bits {
1500 target_value.append(&mut hex::decode("0002ffff").unwrap());
1502 target_value.append(&mut hex::decode("0000").unwrap());
1504 if non_bitcoin_chain_hash {
1505 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1507 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1509 target_value.append(&mut hex::decode("00083a840000034d031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f024d4b6cd1361032ca9bd2aeb9d900aa4d45d9ead80ac9423374c451a7254d076602531fe6068134503d2723133227c867ac8fa6c83c537e9a44c3c5bdbdcb1fe33703462779ad4aad39514614751a71085f2f10e1c7a593e4e030efb5b8721ce55b0b").unwrap());
1511 target_value.append(&mut hex::decode("0a00001400001e000028").unwrap());
1513 assert_eq!(encoded_value, target_value);
1517 fn encoding_channel_announcement() {
1518 do_encoding_channel_announcement(false, false, false);
1519 do_encoding_channel_announcement(true, false, false);
1520 do_encoding_channel_announcement(true, true, false);
1521 do_encoding_channel_announcement(true, true, true);
1522 do_encoding_channel_announcement(false, true, true);
1523 do_encoding_channel_announcement(false, false, true);
1524 do_encoding_channel_announcement(false, true, false);
1525 do_encoding_channel_announcement(true, false, true);
1528 fn do_encoding_node_announcement(unknown_features_bits: bool, ipv4: bool, ipv6: bool, onionv2: bool, onionv3: bool, excess_address_data: bool, excess_data: bool) {
1529 let secp_ctx = Secp256k1::new();
1530 let (privkey_1, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1531 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1532 let features = if unknown_features_bits {
1533 NodeFeatures::from_le_bytes(vec![0xFF, 0xFF])
1535 // Set to some features we may support
1536 NodeFeatures::from_le_bytes(vec![2 | 1 << 5])
1538 let mut addresses = Vec::new();
1540 addresses.push(msgs::NetAddress::IPv4 {
1541 addr: [255, 254, 253, 252],
1546 addresses.push(msgs::NetAddress::IPv6 {
1547 addr: [255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 245, 244, 243, 242, 241, 240],
1552 addresses.push(msgs::NetAddress::OnionV2 {
1553 addr: [255, 254, 253, 252, 251, 250, 249, 248, 247, 246],
1558 addresses.push(msgs::NetAddress::OnionV3 {
1559 ed25519_pubkey: [255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 245, 244, 243, 242, 241, 240, 239, 238, 237, 236, 235, 234, 233, 232, 231, 230, 229, 228, 227, 226, 225, 224],
1565 let mut addr_len = 0;
1566 for addr in &addresses {
1567 addr_len += addr.len() + 1;
1569 let unsigned_node_announcement = msgs::UnsignedNodeAnnouncement {
1571 timestamp: 20190119,
1576 excess_address_data: if excess_address_data { vec![33, 108, 40, 11, 83, 149, 162, 84, 110, 126, 75, 38, 99, 224, 79, 129, 22, 34, 241, 90, 79, 146, 232, 58, 162, 233, 43, 162, 165, 115, 193, 57, 20, 44, 84, 174, 99, 7, 42, 30, 193, 238, 125, 192, 192, 75, 222, 92, 132, 120, 6, 23, 42, 160, 92, 146, 194, 42, 232, 227, 8, 209, 210, 105] } else { Vec::new() },
1577 excess_data: if excess_data { vec![59, 18, 204, 25, 92, 224, 162, 209, 189, 166, 168, 139, 239, 161, 159, 160, 127, 81, 202, 167, 92, 232, 56, 55, 242, 137, 101, 96, 11, 138, 172, 171, 8, 85, 255, 176, 231, 65, 236, 95, 124, 65, 66, 30, 152, 41, 169, 212, 134, 17, 200, 200, 49, 247, 27, 229, 234, 115, 230, 101, 148, 151, 127, 253] } else { Vec::new() },
1579 addr_len += unsigned_node_announcement.excess_address_data.len() as u16;
1580 let node_announcement = msgs::NodeAnnouncement {
1582 contents: unsigned_node_announcement,
1584 let encoded_value = node_announcement.encode();
1585 let mut target_value = hex::decode("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1586 if unknown_features_bits {
1587 target_value.append(&mut hex::decode("0002ffff").unwrap());
1589 target_value.append(&mut hex::decode("000122").unwrap());
1591 target_value.append(&mut hex::decode("013413a7031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f2020201010101010101010101010101010101010101010101010101010101010101010").unwrap());
1592 target_value.append(&mut vec![(addr_len >> 8) as u8, addr_len as u8]);
1594 target_value.append(&mut hex::decode("01fffefdfc2607").unwrap());
1597 target_value.append(&mut hex::decode("02fffefdfcfbfaf9f8f7f6f5f4f3f2f1f02607").unwrap());
1600 target_value.append(&mut hex::decode("03fffefdfcfbfaf9f8f7f62607").unwrap());
1603 target_value.append(&mut hex::decode("04fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0efeeedecebeae9e8e7e6e5e4e3e2e1e00020102607").unwrap());
1605 if excess_address_data {
1606 target_value.append(&mut hex::decode("216c280b5395a2546e7e4b2663e04f811622f15a4f92e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d269").unwrap());
1609 target_value.append(&mut hex::decode("3b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
1611 assert_eq!(encoded_value, target_value);
1615 fn encoding_node_announcement() {
1616 do_encoding_node_announcement(true, true, true, true, true, true, true);
1617 do_encoding_node_announcement(false, false, false, false, false, false, false);
1618 do_encoding_node_announcement(false, true, false, false, false, false, false);
1619 do_encoding_node_announcement(false, false, true, false, false, false, false);
1620 do_encoding_node_announcement(false, false, false, true, false, false, false);
1621 do_encoding_node_announcement(false, false, false, false, true, false, false);
1622 do_encoding_node_announcement(false, false, false, false, false, true, false);
1623 do_encoding_node_announcement(false, true, false, true, false, true, false);
1624 do_encoding_node_announcement(false, false, true, false, true, false, false);
1627 fn do_encoding_channel_update(non_bitcoin_chain_hash: bool, direction: bool, disable: bool, htlc_maximum_msat: bool) {
1628 let secp_ctx = Secp256k1::new();
1629 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1630 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1631 let unsigned_channel_update = msgs::UnsignedChannelUpdate {
1632 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1633 short_channel_id: 2316138423780173,
1634 timestamp: 20190119,
1635 flags: if direction { 1 } else { 0 } | if disable { 1 << 1 } else { 0 } | if htlc_maximum_msat { 1 << 8 } else { 0 },
1636 cltv_expiry_delta: 144,
1637 htlc_minimum_msat: 1000000,
1638 fee_base_msat: 10000,
1639 fee_proportional_millionths: 20,
1640 excess_data: if htlc_maximum_msat { vec![0, 0, 0, 0, 59, 154, 202, 0] } else { Vec::new() }
1642 let channel_update = msgs::ChannelUpdate {
1644 contents: unsigned_channel_update
1646 let encoded_value = channel_update.encode();
1647 let mut target_value = hex::decode("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1648 if non_bitcoin_chain_hash {
1649 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1651 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1653 target_value.append(&mut hex::decode("00083a840000034d013413a7").unwrap());
1654 if htlc_maximum_msat {
1655 target_value.append(&mut hex::decode("01").unwrap());
1657 target_value.append(&mut hex::decode("00").unwrap());
1659 target_value.append(&mut hex::decode("00").unwrap());
1661 let flag = target_value.last_mut().unwrap();
1665 let flag = target_value.last_mut().unwrap();
1666 *flag = *flag | 1 << 1;
1668 target_value.append(&mut hex::decode("009000000000000f42400000271000000014").unwrap());
1669 if htlc_maximum_msat {
1670 target_value.append(&mut hex::decode("000000003b9aca00").unwrap());
1672 assert_eq!(encoded_value, target_value);
1676 fn encoding_channel_update() {
1677 do_encoding_channel_update(false, false, false, false);
1678 do_encoding_channel_update(true, false, false, false);
1679 do_encoding_channel_update(false, true, false, false);
1680 do_encoding_channel_update(false, false, true, false);
1681 do_encoding_channel_update(false, false, false, true);
1682 do_encoding_channel_update(true, true, true, true);
1685 fn do_encoding_open_channel(non_bitcoin_chain_hash: bool, random_bit: bool, shutdown: bool) {
1686 let secp_ctx = Secp256k1::new();
1687 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1688 let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1689 let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1690 let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1691 let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
1692 let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
1693 let open_channel = msgs::OpenChannel {
1694 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1695 temporary_channel_id: [2; 32],
1696 funding_satoshis: 1311768467284833366,
1697 push_msat: 2536655962884945560,
1698 dust_limit_satoshis: 3608586615801332854,
1699 max_htlc_value_in_flight_msat: 8517154655701053848,
1700 channel_reserve_satoshis: 8665828695742877976,
1701 htlc_minimum_msat: 2316138423780173,
1702 feerate_per_kw: 821716,
1703 to_self_delay: 49340,
1704 max_accepted_htlcs: 49340,
1705 funding_pubkey: pubkey_1,
1706 revocation_basepoint: pubkey_2,
1707 payment_basepoint: pubkey_3,
1708 delayed_payment_basepoint: pubkey_4,
1709 htlc_basepoint: pubkey_5,
1710 first_per_commitment_point: pubkey_6,
1711 channel_flags: if random_bit { 1 << 5 } else { 0 },
1712 shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: pubkey_1}, Network::Testnet).script_pubkey()) } else { OptionalField::Absent }
1714 let encoded_value = open_channel.encode();
1715 let mut target_value = Vec::new();
1716 if non_bitcoin_chain_hash {
1717 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1719 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1721 target_value.append(&mut hex::decode("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").unwrap());
1723 target_value.append(&mut hex::decode("20").unwrap());
1725 target_value.append(&mut hex::decode("00").unwrap());
1728 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1730 assert_eq!(encoded_value, target_value);
1734 fn encoding_open_channel() {
1735 do_encoding_open_channel(false, false, false);
1736 do_encoding_open_channel(true, false, false);
1737 do_encoding_open_channel(false, true, false);
1738 do_encoding_open_channel(false, false, true);
1739 do_encoding_open_channel(true, true, true);
1742 fn do_encoding_accept_channel(shutdown: bool) {
1743 let secp_ctx = Secp256k1::new();
1744 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1745 let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1746 let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1747 let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1748 let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
1749 let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
1750 let accept_channel = msgs::AcceptChannel {
1751 temporary_channel_id: [2; 32],
1752 dust_limit_satoshis: 1311768467284833366,
1753 max_htlc_value_in_flight_msat: 2536655962884945560,
1754 channel_reserve_satoshis: 3608586615801332854,
1755 htlc_minimum_msat: 2316138423780173,
1756 minimum_depth: 821716,
1757 to_self_delay: 49340,
1758 max_accepted_htlcs: 49340,
1759 funding_pubkey: pubkey_1,
1760 revocation_basepoint: pubkey_2,
1761 payment_basepoint: pubkey_3,
1762 delayed_payment_basepoint: pubkey_4,
1763 htlc_basepoint: pubkey_5,
1764 first_per_commitment_point: pubkey_6,
1765 shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: pubkey_1}, Network::Testnet).script_pubkey()) } else { OptionalField::Absent }
1767 let encoded_value = accept_channel.encode();
1768 let mut target_value = hex::decode("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").unwrap();
1770 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1772 assert_eq!(encoded_value, target_value);
1776 fn encoding_accept_channel() {
1777 do_encoding_accept_channel(false);
1778 do_encoding_accept_channel(true);
1782 fn encoding_funding_created() {
1783 let secp_ctx = Secp256k1::new();
1784 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1785 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1786 let funding_created = msgs::FundingCreated {
1787 temporary_channel_id: [2; 32],
1788 funding_txid: Sha256dHash::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(),
1789 funding_output_index: 255,
1792 let encoded_value = funding_created.encode();
1793 let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202026e96fe9f8b0ddcd729ba03cfafa5a27b050b39d354dd980814268dfa9a44d4c200ffd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1794 assert_eq!(encoded_value, target_value);
1798 fn encoding_funding_signed() {
1799 let secp_ctx = Secp256k1::new();
1800 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1801 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1802 let funding_signed = msgs::FundingSigned {
1803 channel_id: [2; 32],
1806 let encoded_value = funding_signed.encode();
1807 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1808 assert_eq!(encoded_value, target_value);
1812 fn encoding_funding_locked() {
1813 let secp_ctx = Secp256k1::new();
1814 let (_, pubkey_1,) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1815 let funding_locked = msgs::FundingLocked {
1816 channel_id: [2; 32],
1817 next_per_commitment_point: pubkey_1,
1819 let encoded_value = funding_locked.encode();
1820 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
1821 assert_eq!(encoded_value, target_value);
1824 fn do_encoding_shutdown(script_type: u8) {
1825 let secp_ctx = Secp256k1::new();
1826 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1827 let script = Builder::new().push_opcode(opcodes::OP_TRUE).into_script();
1828 let shutdown = msgs::Shutdown {
1829 channel_id: [2; 32],
1830 scriptpubkey: if script_type == 1 { Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: pubkey_1}, Network::Testnet).script_pubkey() } else if script_type == 2 { Address::p2sh(&script, Network::Testnet).script_pubkey() } else if script_type == 3 { Address::p2wpkh(&::bitcoin::PublicKey{compressed: true, key: pubkey_1}, Network::Testnet).script_pubkey() } else { Address::p2wsh(&script, Network::Testnet).script_pubkey() },
1832 let encoded_value = shutdown.encode();
1833 let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202").unwrap();
1834 if script_type == 1 {
1835 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1836 } else if script_type == 2 {
1837 target_value.append(&mut hex::decode("0017a914da1745e9b549bd0bfa1a569971c77eba30cd5a4b87").unwrap());
1838 } else if script_type == 3 {
1839 target_value.append(&mut hex::decode("0016001479b000887626b294a914501a4cd226b58b235983").unwrap());
1840 } else if script_type == 4 {
1841 target_value.append(&mut hex::decode("002200204ae81572f06e1b88fd5ced7a1a000945432e83e1551e6f721ee9c00b8cc33260").unwrap());
1843 assert_eq!(encoded_value, target_value);
1847 fn encoding_shutdown() {
1848 do_encoding_shutdown(1);
1849 do_encoding_shutdown(2);
1850 do_encoding_shutdown(3);
1851 do_encoding_shutdown(4);
1855 fn encoding_closing_signed() {
1856 let secp_ctx = Secp256k1::new();
1857 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1858 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1859 let closing_signed = msgs::ClosingSigned {
1860 channel_id: [2; 32],
1861 fee_satoshis: 2316138423780173,
1864 let encoded_value = closing_signed.encode();
1865 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1866 assert_eq!(encoded_value, target_value);
1870 fn encoding_update_add_htlc() {
1871 let secp_ctx = Secp256k1::new();
1872 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1873 let onion_routing_packet = msgs::OnionPacket {
1875 public_key: Ok(pubkey_1),
1876 hop_data: [1; 20*65],
1879 let update_add_htlc = msgs::UpdateAddHTLC {
1880 channel_id: [2; 32],
1881 htlc_id: 2316138423780173,
1882 amount_msat: 3608586615801332854,
1883 payment_hash: PaymentHash([1; 32]),
1884 cltv_expiry: 821716,
1885 onion_routing_packet
1887 let encoded_value = update_add_htlc.encode();
1888 let target_value = hex::decode("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").unwrap();
1889 assert_eq!(encoded_value, target_value);
1893 fn encoding_update_fulfill_htlc() {
1894 let update_fulfill_htlc = msgs::UpdateFulfillHTLC {
1895 channel_id: [2; 32],
1896 htlc_id: 2316138423780173,
1897 payment_preimage: PaymentPreimage([1; 32]),
1899 let encoded_value = update_fulfill_htlc.encode();
1900 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d0101010101010101010101010101010101010101010101010101010101010101").unwrap();
1901 assert_eq!(encoded_value, target_value);
1905 fn encoding_update_fail_htlc() {
1906 let reason = OnionErrorPacket {
1907 data: [1; 32].to_vec(),
1909 let update_fail_htlc = msgs::UpdateFailHTLC {
1910 channel_id: [2; 32],
1911 htlc_id: 2316138423780173,
1914 let encoded_value = update_fail_htlc.encode();
1915 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d00200101010101010101010101010101010101010101010101010101010101010101").unwrap();
1916 assert_eq!(encoded_value, target_value);
1920 fn encoding_update_fail_malformed_htlc() {
1921 let update_fail_malformed_htlc = msgs::UpdateFailMalformedHTLC {
1922 channel_id: [2; 32],
1923 htlc_id: 2316138423780173,
1924 sha256_of_onion: [1; 32],
1927 let encoded_value = update_fail_malformed_htlc.encode();
1928 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d010101010101010101010101010101010101010101010101010101010101010100ff").unwrap();
1929 assert_eq!(encoded_value, target_value);
1932 fn do_encoding_commitment_signed(htlcs: bool) {
1933 let secp_ctx = Secp256k1::new();
1934 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1935 let (privkey_2, _) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1936 let (privkey_3, _) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1937 let (privkey_4, _) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1938 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1939 let sig_2 = get_sig_on!(privkey_2, secp_ctx, String::from("01010101010101010101010101010101"));
1940 let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
1941 let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
1942 let commitment_signed = msgs::CommitmentSigned {
1943 channel_id: [2; 32],
1945 htlc_signatures: if htlcs { vec![sig_2, sig_3, sig_4] } else { Vec::new() },
1947 let encoded_value = commitment_signed.encode();
1948 let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1950 target_value.append(&mut hex::decode("00031735b6a427e80d5fe7cd90a2f4ee08dc9c27cda7c35a4172e5d85b12c49d4232537e98f9b1f3c5e6989a8b9644e90e8918127680dbd0d4043510840fc0f1e11a216c280b5395a2546e7e4b2663e04f811622f15a4f91e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d2692b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
1952 target_value.append(&mut hex::decode("0000").unwrap());
1954 assert_eq!(encoded_value, target_value);
1958 fn encoding_commitment_signed() {
1959 do_encoding_commitment_signed(true);
1960 do_encoding_commitment_signed(false);
1964 fn encoding_revoke_and_ack() {
1965 let secp_ctx = Secp256k1::new();
1966 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1967 let raa = msgs::RevokeAndACK {
1968 channel_id: [2; 32],
1969 per_commitment_secret: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
1970 next_per_commitment_point: pubkey_1,
1972 let encoded_value = raa.encode();
1973 let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202020101010101010101010101010101010101010101010101010101010101010101031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
1974 assert_eq!(encoded_value, target_value);
1978 fn encoding_update_fee() {
1979 let update_fee = msgs::UpdateFee {
1980 channel_id: [2; 32],
1981 feerate_per_kw: 20190119,
1983 let encoded_value = update_fee.encode();
1984 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202013413a7").unwrap();
1985 assert_eq!(encoded_value, target_value);
1989 fn encoding_init() {
1990 assert_eq!(msgs::Init {
1991 features: InitFeatures::from_le_bytes(vec![0xFF, 0xFF, 0xFF]),
1992 }.encode(), hex::decode("00023fff0003ffffff").unwrap());
1993 assert_eq!(msgs::Init {
1994 features: InitFeatures::from_le_bytes(vec![0xFF]),
1995 }.encode(), hex::decode("0001ff0001ff").unwrap());
1996 assert_eq!(msgs::Init {
1997 features: InitFeatures::from_le_bytes(vec![]),
1998 }.encode(), hex::decode("00000000").unwrap());
2002 fn encoding_error() {
2003 let error = msgs::ErrorMessage {
2004 channel_id: [2; 32],
2005 data: String::from("rust-lightning"),
2007 let encoded_value = error.encode();
2008 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202000e727573742d6c696768746e696e67").unwrap();
2009 assert_eq!(encoded_value, target_value);
2013 fn encoding_ping() {
2014 let ping = msgs::Ping {
2018 let encoded_value = ping.encode();
2019 let target_value = hex::decode("0040004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
2020 assert_eq!(encoded_value, target_value);
2024 fn encoding_pong() {
2025 let pong = msgs::Pong {
2028 let encoded_value = pong.encode();
2029 let target_value = hex::decode("004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
2030 assert_eq!(encoded_value, target_value);
2034 fn encoding_legacy_onion_hop_data() {
2035 let msg = msgs::OnionHopData {
2036 format: OnionHopDataFormat::Legacy {
2037 short_channel_id: 0xdeadbeef1bad1dea,
2039 amt_to_forward: 0x0badf00d01020304,
2040 outgoing_cltv_value: 0xffffffff,
2042 let encoded_value = msg.encode();
2043 let target_value = hex::decode("00deadbeef1bad1dea0badf00d01020304ffffffff000000000000000000000000").unwrap();
2044 assert_eq!(encoded_value, target_value);
2048 fn encoding_nonfinal_onion_hop_data() {
2049 let mut msg = msgs::OnionHopData {
2050 format: OnionHopDataFormat::NonFinalNode {
2051 short_channel_id: 0xdeadbeef1bad1dea,
2053 amt_to_forward: 0x0badf00d01020304,
2054 outgoing_cltv_value: 0xffffffff,
2056 let encoded_value = msg.encode();
2057 let target_value = hex::decode("1a02080badf00d010203040404ffffffff0608deadbeef1bad1dea").unwrap();
2058 assert_eq!(encoded_value, target_value);
2059 msg = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
2060 if let OnionHopDataFormat::NonFinalNode { short_channel_id } = msg.format {
2061 assert_eq!(short_channel_id, 0xdeadbeef1bad1dea);
2062 } else { panic!(); }
2063 assert_eq!(msg.amt_to_forward, 0x0badf00d01020304);
2064 assert_eq!(msg.outgoing_cltv_value, 0xffffffff);
2068 fn encoding_final_onion_hop_data() {
2069 let mut msg = msgs::OnionHopData {
2070 format: OnionHopDataFormat::FinalNode,
2071 amt_to_forward: 0x0badf00d01020304,
2072 outgoing_cltv_value: 0xffffffff,
2074 let encoded_value = msg.encode();
2075 let target_value = hex::decode("1002080badf00d010203040404ffffffff").unwrap();
2076 assert_eq!(encoded_value, target_value);
2077 msg = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
2078 if let OnionHopDataFormat::FinalNode = msg.format { } else { panic!(); }
2079 assert_eq!(msg.amt_to_forward, 0x0badf00d01020304);
2080 assert_eq!(msg.outgoing_cltv_value, 0xffffffff);