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};
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
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 impl Writeable for NetAddress {
309 fn write<W: Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error> {
311 &NetAddress::IPv4 { ref addr, ref port } => {
316 &NetAddress::IPv6 { ref addr, ref port } => {
321 &NetAddress::OnionV2 { ref addr, ref port } => {
326 &NetAddress::OnionV3 { ref ed25519_pubkey, ref checksum, ref version, ref port } => {
328 ed25519_pubkey.write(writer)?;
329 checksum.write(writer)?;
330 version.write(writer)?;
338 impl<R: ::std::io::Read> Readable<R> for Result<NetAddress, u8> {
339 fn read(reader: &mut R) -> Result<Result<NetAddress, u8>, DecodeError> {
340 let byte = <u8 as Readable<R>>::read(reader)?;
343 Ok(Ok(NetAddress::IPv4 {
344 addr: Readable::read(reader)?,
345 port: Readable::read(reader)?,
349 Ok(Ok(NetAddress::IPv6 {
350 addr: Readable::read(reader)?,
351 port: Readable::read(reader)?,
355 Ok(Ok(NetAddress::OnionV2 {
356 addr: Readable::read(reader)?,
357 port: Readable::read(reader)?,
361 Ok(Ok(NetAddress::OnionV3 {
362 ed25519_pubkey: Readable::read(reader)?,
363 checksum: Readable::read(reader)?,
364 version: Readable::read(reader)?,
365 port: Readable::read(reader)?,
368 _ => return Ok(Err(byte)),
373 // Only exposed as broadcast of node_announcement should be filtered by node_id
374 /// The unsigned part of a node_announcement
375 #[derive(PartialEq, Clone, Debug)]
376 pub struct UnsignedNodeAnnouncement {
377 pub(crate) features: NodeFeatures,
378 pub(crate) timestamp: u32,
379 /// The node_id this announcement originated from (don't rebroadcast the node_announcement back
381 pub node_id: PublicKey,
382 pub(crate) rgb: [u8; 3],
383 pub(crate) alias: [u8; 32],
384 /// List of addresses on which this node is reachable. Note that you may only have up to one
385 /// address of each type, if you have more, they may be silently discarded or we may panic!
386 pub(crate) addresses: Vec<NetAddress>,
387 pub(crate) excess_address_data: Vec<u8>,
388 pub(crate) excess_data: Vec<u8>,
390 #[derive(PartialEq, Clone)]
391 /// A node_announcement message to be sent or received from a peer
392 pub struct NodeAnnouncement {
393 pub(crate) signature: Signature,
394 pub(crate) contents: UnsignedNodeAnnouncement,
397 // Only exposed as broadcast of channel_announcement should be filtered by node_id
398 /// The unsigned part of a channel_announcement
399 #[derive(PartialEq, Clone, Debug)]
400 pub struct UnsignedChannelAnnouncement {
401 pub(crate) features: ChannelFeatures,
402 pub(crate) chain_hash: Sha256dHash,
403 pub(crate) short_channel_id: u64,
404 /// One of the two node_ids which are endpoints of this channel
405 pub node_id_1: PublicKey,
406 /// The other of the two node_ids which are endpoints of this channel
407 pub node_id_2: PublicKey,
408 pub(crate) bitcoin_key_1: PublicKey,
409 pub(crate) bitcoin_key_2: PublicKey,
410 pub(crate) excess_data: Vec<u8>,
412 /// A channel_announcement message to be sent or received from a peer
413 #[derive(PartialEq, Clone, Debug)]
414 pub struct ChannelAnnouncement {
415 pub(crate) node_signature_1: Signature,
416 pub(crate) node_signature_2: Signature,
417 pub(crate) bitcoin_signature_1: Signature,
418 pub(crate) bitcoin_signature_2: Signature,
419 pub(crate) contents: UnsignedChannelAnnouncement,
422 #[derive(PartialEq, Clone, Debug)]
423 pub(crate) struct UnsignedChannelUpdate {
424 pub(crate) chain_hash: Sha256dHash,
425 pub(crate) short_channel_id: u64,
426 pub(crate) timestamp: u32,
427 pub(crate) flags: u16,
428 pub(crate) cltv_expiry_delta: u16,
429 pub(crate) htlc_minimum_msat: u64,
430 pub(crate) fee_base_msat: u32,
431 pub(crate) fee_proportional_millionths: u32,
432 pub(crate) excess_data: Vec<u8>,
434 /// A channel_update message to be sent or received from a peer
435 #[derive(PartialEq, Clone, Debug)]
436 pub struct ChannelUpdate {
437 pub(crate) signature: Signature,
438 pub(crate) contents: UnsignedChannelUpdate,
441 /// Used to put an error message in a LightningError
443 pub enum ErrorAction {
444 /// The peer took some action which made us think they were useless. Disconnect them.
446 /// An error message which we should make an effort to send before we disconnect.
447 msg: Option<ErrorMessage>
449 /// The peer did something harmless that we weren't able to process, just log and ignore
451 /// The peer did something incorrect. Tell them.
453 /// The message to send.
458 /// An Err type for failure to process messages.
459 pub struct LightningError {
460 /// A human-readable message describing the error
461 pub err: &'static str,
462 /// The action which should be taken against the offending peer.
463 pub action: ErrorAction,
466 /// Struct used to return values from revoke_and_ack messages, containing a bunch of commitment
467 /// transaction updates if they were pending.
468 #[derive(PartialEq, Clone)]
469 pub struct CommitmentUpdate {
470 /// update_add_htlc messages which should be sent
471 pub update_add_htlcs: Vec<UpdateAddHTLC>,
472 /// update_fulfill_htlc messages which should be sent
473 pub update_fulfill_htlcs: Vec<UpdateFulfillHTLC>,
474 /// update_fail_htlc messages which should be sent
475 pub update_fail_htlcs: Vec<UpdateFailHTLC>,
476 /// update_fail_malformed_htlc messages which should be sent
477 pub update_fail_malformed_htlcs: Vec<UpdateFailMalformedHTLC>,
478 /// An update_fee message which should be sent
479 pub update_fee: Option<UpdateFee>,
480 /// Finally, the commitment_signed message which should be sent
481 pub commitment_signed: CommitmentSigned,
484 /// The information we received from a peer along the route of a payment we originated. This is
485 /// returned by ChannelMessageHandler::handle_update_fail_htlc to be passed into
486 /// RoutingMessageHandler::handle_htlc_fail_channel_update to update our network map.
488 pub enum HTLCFailChannelUpdate {
489 /// We received an error which included a full ChannelUpdate message.
490 ChannelUpdateMessage {
491 /// The unwrapped message we received
494 /// We received an error which indicated only that a channel has been closed
496 /// The short_channel_id which has now closed.
497 short_channel_id: u64,
498 /// when this true, this channel should be permanently removed from the
499 /// consideration. Otherwise, this channel can be restored as new channel_update is received
502 /// We received an error which indicated only that a node has failed
504 /// The node_id that has failed.
506 /// when this true, node should be permanently removed from the
507 /// consideration. Otherwise, the channels connected to this node can be
508 /// restored as new channel_update is received
513 /// Messages could have optional fields to use with extended features
514 /// As we wish to serialize these differently from Option<T>s (Options get a tag byte, but
515 /// OptionalFeild simply gets Present if there are enough bytes to read into it), we have a
516 /// separate enum type for them.
517 #[derive(Clone, PartialEq)]
518 pub enum OptionalField<T> {
519 /// Optional field is included in message
521 /// Optional field is absent in message
525 /// A trait to describe an object which can receive channel messages.
527 /// Messages MAY be called in parallel when they originate from different their_node_ids, however
528 /// they MUST NOT be called in parallel when the two calls have the same their_node_id.
529 pub trait ChannelMessageHandler : events::MessageSendEventsProvider + Send + Sync {
531 /// Handle an incoming open_channel message from the given peer.
532 fn handle_open_channel(&self, their_node_id: &PublicKey, their_features: InitFeatures, msg: &OpenChannel);
533 /// Handle an incoming accept_channel message from the given peer.
534 fn handle_accept_channel(&self, their_node_id: &PublicKey, their_features: InitFeatures, msg: &AcceptChannel);
535 /// Handle an incoming funding_created message from the given peer.
536 fn handle_funding_created(&self, their_node_id: &PublicKey, msg: &FundingCreated);
537 /// Handle an incoming funding_signed message from the given peer.
538 fn handle_funding_signed(&self, their_node_id: &PublicKey, msg: &FundingSigned);
539 /// Handle an incoming funding_locked message from the given peer.
540 fn handle_funding_locked(&self, their_node_id: &PublicKey, msg: &FundingLocked);
543 /// Handle an incoming shutdown message from the given peer.
544 fn handle_shutdown(&self, their_node_id: &PublicKey, msg: &Shutdown);
545 /// Handle an incoming closing_signed message from the given peer.
546 fn handle_closing_signed(&self, their_node_id: &PublicKey, msg: &ClosingSigned);
549 /// Handle an incoming update_add_htlc message from the given peer.
550 fn handle_update_add_htlc(&self, their_node_id: &PublicKey, msg: &UpdateAddHTLC);
551 /// Handle an incoming update_fulfill_htlc message from the given peer.
552 fn handle_update_fulfill_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFulfillHTLC);
553 /// Handle an incoming update_fail_htlc message from the given peer.
554 fn handle_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFailHTLC);
555 /// Handle an incoming update_fail_malformed_htlc message from the given peer.
556 fn handle_update_fail_malformed_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFailMalformedHTLC);
557 /// Handle an incoming commitment_signed message from the given peer.
558 fn handle_commitment_signed(&self, their_node_id: &PublicKey, msg: &CommitmentSigned);
559 /// Handle an incoming revoke_and_ack message from the given peer.
560 fn handle_revoke_and_ack(&self, their_node_id: &PublicKey, msg: &RevokeAndACK);
562 /// Handle an incoming update_fee message from the given peer.
563 fn handle_update_fee(&self, their_node_id: &PublicKey, msg: &UpdateFee);
565 // Channel-to-announce:
566 /// Handle an incoming announcement_signatures message from the given peer.
567 fn handle_announcement_signatures(&self, their_node_id: &PublicKey, msg: &AnnouncementSignatures);
569 // Connection loss/reestablish:
570 /// Indicates a connection to the peer failed/an existing connection was lost. If no connection
571 /// is believed to be possible in the future (eg they're sending us messages we don't
572 /// understand or indicate they require unknown feature bits), no_connection_possible is set
573 /// and any outstanding channels should be failed.
574 fn peer_disconnected(&self, their_node_id: &PublicKey, no_connection_possible: bool);
576 /// Handle a peer reconnecting, possibly generating channel_reestablish message(s).
577 fn peer_connected(&self, their_node_id: &PublicKey, msg: &Init);
578 /// Handle an incoming channel_reestablish message from the given peer.
579 fn handle_channel_reestablish(&self, their_node_id: &PublicKey, msg: &ChannelReestablish);
582 /// Handle an incoming error message from the given peer.
583 fn handle_error(&self, their_node_id: &PublicKey, msg: &ErrorMessage);
586 /// A trait to describe an object which can receive routing messages.
587 pub trait RoutingMessageHandler : Send + Sync {
588 /// Handle an incoming node_announcement message, returning true if it should be forwarded on,
589 /// false or returning an Err otherwise.
590 fn handle_node_announcement(&self, msg: &NodeAnnouncement) -> Result<bool, LightningError>;
591 /// Handle a channel_announcement message, returning true if it should be forwarded on, false
592 /// or returning an Err otherwise.
593 fn handle_channel_announcement(&self, msg: &ChannelAnnouncement) -> Result<bool, LightningError>;
594 /// Handle an incoming channel_update message, returning true if it should be forwarded on,
595 /// false or returning an Err otherwise.
596 fn handle_channel_update(&self, msg: &ChannelUpdate) -> Result<bool, LightningError>;
597 /// Handle some updates to the route graph that we learned due to an outbound failed payment.
598 fn handle_htlc_fail_channel_update(&self, update: &HTLCFailChannelUpdate);
599 /// Gets a subset of the channel announcements and updates required to dump our routing table
600 /// to a remote node, starting at the short_channel_id indicated by starting_point and
601 /// including batch_amount entries.
602 fn get_next_channel_announcements(&self, starting_point: u64, batch_amount: u8) -> Vec<(ChannelAnnouncement, ChannelUpdate, ChannelUpdate)>;
603 /// Gets a subset of the node announcements required to dump our routing table to a remote node,
604 /// starting at the node *after* the provided publickey and including batch_amount entries.
605 /// If None is provided for starting_point, we start at the first node.
606 fn get_next_node_announcements(&self, starting_point: Option<&PublicKey>, batch_amount: u8) -> Vec<NodeAnnouncement>;
607 /// Returns whether a full sync should be requested from a peer.
608 fn should_request_full_sync(&self, node_id: &PublicKey) -> bool;
611 mod fuzzy_internal_msgs {
612 // These types aren't intended to be pub, but are exposed for direct fuzzing (as we deserialize
613 // them from untrusted input):
615 pub(crate) enum OnionHopDataFormat {
616 Legacy, // aka Realm-0
617 // Some tests expect to be able to generate bogus non-deserializable OnionHopDatas. In the
618 // future we can use bogus TLV attributes, but for now we have to expose a "bogus realm"
624 pub struct OnionHopData {
625 pub(crate) format: OnionHopDataFormat,
626 pub(crate) short_channel_id: u64,
627 pub(crate) amt_to_forward: u64,
628 pub(crate) outgoing_cltv_value: u32,
629 // 12 bytes of 0-padding
630 pub(crate) hmac: [u8; 32],
633 pub struct DecodedOnionErrorPacket {
634 pub(crate) hmac: [u8; 32],
635 pub(crate) failuremsg: Vec<u8>,
636 pub(crate) pad: Vec<u8>,
639 #[cfg(feature = "fuzztarget")]
640 pub use self::fuzzy_internal_msgs::*;
641 #[cfg(not(feature = "fuzztarget"))]
642 pub(crate) use self::fuzzy_internal_msgs::*;
645 pub(crate) struct OnionPacket {
646 pub(crate) version: u8,
647 /// In order to ensure we always return an error on Onion decode in compliance with BOLT 4, we
648 /// have to deserialize OnionPackets contained in UpdateAddHTLCs even if the ephemeral public
649 /// key (here) is bogus, so we hold a Result instead of a PublicKey as we'd like.
650 pub(crate) public_key: Result<PublicKey, secp256k1::Error>,
651 pub(crate) hop_data: [u8; 20*65],
652 pub(crate) hmac: [u8; 32],
655 impl PartialEq for OnionPacket {
656 fn eq(&self, other: &OnionPacket) -> bool {
657 for (i, j) in self.hop_data.iter().zip(other.hop_data.iter()) {
658 if i != j { return false; }
660 self.version == other.version &&
661 self.public_key == other.public_key &&
662 self.hmac == other.hmac
666 #[derive(Clone, PartialEq)]
667 pub(crate) struct OnionErrorPacket {
668 // This really should be a constant size slice, but the spec lets these things be up to 128KB?
669 // (TODO) We limit it in decode to much lower...
670 pub(crate) data: Vec<u8>,
673 impl Error for DecodeError {
674 fn description(&self) -> &str {
676 DecodeError::UnknownVersion => "Unknown realm byte in Onion packet",
677 DecodeError::UnknownRequiredFeature => "Unknown required feature preventing decode",
678 DecodeError::InvalidValue => "Nonsense bytes didn't map to the type they were interpreted as",
679 DecodeError::ShortRead => "Packet extended beyond the provided bytes",
680 DecodeError::ExtraAddressesPerType => "More than one address of a single type",
681 DecodeError::BadLengthDescriptor => "A length descriptor in the packet didn't describe the later data correctly",
682 DecodeError::Io(ref e) => e.description(),
686 impl fmt::Display for DecodeError {
687 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
688 f.write_str(self.description())
692 impl fmt::Debug for LightningError {
693 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
694 f.write_str(self.err)
698 impl From<::std::io::Error> for DecodeError {
699 fn from(e: ::std::io::Error) -> Self {
700 if e.kind() == ::std::io::ErrorKind::UnexpectedEof {
701 DecodeError::ShortRead
708 impl Writeable for OptionalField<Script> {
709 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
711 OptionalField::Present(ref script) => {
712 // Note that Writeable for script includes the 16-bit length tag for us
715 OptionalField::Absent => {}
721 impl<R: Read> Readable<R> for OptionalField<Script> {
722 fn read(r: &mut R) -> Result<Self, DecodeError> {
723 match <u16 as Readable<R>>::read(r) {
725 let mut buf = vec![0; len as usize];
726 r.read_exact(&mut buf)?;
727 Ok(OptionalField::Present(Script::from(buf)))
729 Err(DecodeError::ShortRead) => Ok(OptionalField::Absent),
735 impl_writeable_len_match!(AcceptChannel, {
736 {AcceptChannel{ shutdown_scriptpubkey: OptionalField::Present(ref script), .. }, 270 + 2 + script.len()},
739 temporary_channel_id,
741 max_htlc_value_in_flight_msat,
742 channel_reserve_satoshis,
748 revocation_basepoint,
750 delayed_payment_basepoint,
752 first_per_commitment_point,
753 shutdown_scriptpubkey
756 impl_writeable!(AnnouncementSignatures, 32+8+64*2, {
763 impl Writeable for ChannelReestablish {
764 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
765 w.size_hint(if let OptionalField::Present(..) = self.data_loss_protect { 32+2*8+33+32 } else { 32+2*8 });
766 self.channel_id.write(w)?;
767 self.next_local_commitment_number.write(w)?;
768 self.next_remote_commitment_number.write(w)?;
769 match self.data_loss_protect {
770 OptionalField::Present(ref data_loss_protect) => {
771 (*data_loss_protect).your_last_per_commitment_secret.write(w)?;
772 (*data_loss_protect).my_current_per_commitment_point.write(w)?;
774 OptionalField::Absent => {}
780 impl<R: Read> Readable<R> for ChannelReestablish{
781 fn read(r: &mut R) -> Result<Self, DecodeError> {
783 channel_id: Readable::read(r)?,
784 next_local_commitment_number: Readable::read(r)?,
785 next_remote_commitment_number: Readable::read(r)?,
787 match <[u8; 32] as Readable<R>>::read(r) {
788 Ok(your_last_per_commitment_secret) =>
789 OptionalField::Present(DataLossProtect {
790 your_last_per_commitment_secret,
791 my_current_per_commitment_point: Readable::read(r)?,
793 Err(DecodeError::ShortRead) => OptionalField::Absent,
794 Err(e) => return Err(e)
801 impl_writeable!(ClosingSigned, 32+8+64, {
807 impl_writeable_len_match!(CommitmentSigned, {
808 { CommitmentSigned { ref htlc_signatures, .. }, 32+64+2+htlc_signatures.len()*64 }
815 impl_writeable_len_match!(DecodedOnionErrorPacket, {
816 { DecodedOnionErrorPacket { ref failuremsg, ref pad, .. }, 32 + 4 + failuremsg.len() + pad.len() }
823 impl_writeable!(FundingCreated, 32+32+2+64, {
824 temporary_channel_id,
826 funding_output_index,
830 impl_writeable!(FundingSigned, 32+64, {
835 impl_writeable!(FundingLocked, 32+33, {
837 next_per_commitment_point
840 impl Writeable for Init {
841 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
842 // global_features gets the bottom 13 bits of our features, and local_features gets all of
843 // our relevant feature bits. This keeps us compatible with old nodes.
844 self.features.write_up_to_13(w)?;
845 self.features.write(w)
849 impl<R: Read> Readable<R> for Init {
850 fn read(r: &mut R) -> Result<Self, DecodeError> {
851 let global_features: InitFeatures = Readable::read(r)?;
852 let features: InitFeatures = Readable::read(r)?;
854 features: features.or(global_features),
859 impl_writeable_len_match!(OpenChannel, {
860 { OpenChannel { shutdown_scriptpubkey: OptionalField::Present(ref script), .. }, 319 + 2 + script.len() },
864 temporary_channel_id,
868 max_htlc_value_in_flight_msat,
869 channel_reserve_satoshis,
875 revocation_basepoint,
877 delayed_payment_basepoint,
879 first_per_commitment_point,
881 shutdown_scriptpubkey
884 impl_writeable!(RevokeAndACK, 32+32+33, {
886 per_commitment_secret,
887 next_per_commitment_point
890 impl_writeable_len_match!(Shutdown, {
891 { Shutdown { ref scriptpubkey, .. }, 32 + 2 + scriptpubkey.len() }
897 impl_writeable_len_match!(UpdateFailHTLC, {
898 { UpdateFailHTLC { ref reason, .. }, 32 + 10 + reason.data.len() }
905 impl_writeable!(UpdateFailMalformedHTLC, 32+8+32+2, {
912 impl_writeable!(UpdateFee, 32+4, {
917 impl_writeable!(UpdateFulfillHTLC, 32+8+32, {
923 impl_writeable_len_match!(OnionErrorPacket, {
924 { OnionErrorPacket { ref data, .. }, 2 + data.len() }
929 impl Writeable for OnionPacket {
930 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
931 w.size_hint(1 + 33 + 20*65 + 32);
932 self.version.write(w)?;
933 match self.public_key {
934 Ok(pubkey) => pubkey.write(w)?,
935 Err(_) => [0u8;33].write(w)?,
937 w.write_all(&self.hop_data)?;
943 impl<R: Read> Readable<R> for OnionPacket {
944 fn read(r: &mut R) -> Result<Self, DecodeError> {
946 version: Readable::read(r)?,
948 let mut buf = [0u8;33];
949 r.read_exact(&mut buf)?;
950 PublicKey::from_slice(&buf)
952 hop_data: Readable::read(r)?,
953 hmac: Readable::read(r)?,
958 impl_writeable!(UpdateAddHTLC, 32+8+8+32+4+1366, {
967 impl Writeable for OnionHopData {
968 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
971 OnionHopDataFormat::Legacy => 0u8.write(w)?,
973 OnionHopDataFormat::BogusRealm(v) => v.write(w)?,
975 self.short_channel_id.write(w)?;
976 self.amt_to_forward.write(w)?;
977 self.outgoing_cltv_value.write(w)?;
978 w.write_all(&[0;12])?;
984 impl<R: Read> Readable<R> for OnionHopData {
985 fn read(r: &mut R) -> Result<Self, DecodeError> {
988 let r: u8 = Readable::read(r)?;
990 return Err(DecodeError::UnknownVersion);
992 OnionHopDataFormat::Legacy
994 short_channel_id: Readable::read(r)?,
995 amt_to_forward: Readable::read(r)?,
996 outgoing_cltv_value: {
997 let v: u32 = Readable::read(r)?;
998 r.read_exact(&mut [0; 12])?;
1001 hmac: Readable::read(r)?,
1006 impl Writeable for Ping {
1007 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1008 w.size_hint(self.byteslen as usize + 4);
1009 self.ponglen.write(w)?;
1010 vec![0u8; self.byteslen as usize].write(w)?; // size-unchecked write
1015 impl<R: Read> Readable<R> for Ping {
1016 fn read(r: &mut R) -> Result<Self, DecodeError> {
1018 ponglen: Readable::read(r)?,
1020 let byteslen = Readable::read(r)?;
1021 r.read_exact(&mut vec![0u8; byteslen as usize][..])?;
1028 impl Writeable for Pong {
1029 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1030 w.size_hint(self.byteslen as usize + 2);
1031 vec![0u8; self.byteslen as usize].write(w)?; // size-unchecked write
1036 impl<R: Read> Readable<R> for Pong {
1037 fn read(r: &mut R) -> Result<Self, DecodeError> {
1040 let byteslen = Readable::read(r)?;
1041 r.read_exact(&mut vec![0u8; byteslen as usize][..])?;
1048 impl Writeable for UnsignedChannelAnnouncement {
1049 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1050 w.size_hint(2 + 2*32 + 4*33 + self.features.byte_count() + self.excess_data.len());
1051 self.features.write(w)?;
1052 self.chain_hash.write(w)?;
1053 self.short_channel_id.write(w)?;
1054 self.node_id_1.write(w)?;
1055 self.node_id_2.write(w)?;
1056 self.bitcoin_key_1.write(w)?;
1057 self.bitcoin_key_2.write(w)?;
1058 w.write_all(&self.excess_data[..])?;
1063 impl<R: Read> Readable<R> for UnsignedChannelAnnouncement {
1064 fn read(r: &mut R) -> Result<Self, DecodeError> {
1066 features: Readable::read(r)?,
1067 chain_hash: Readable::read(r)?,
1068 short_channel_id: Readable::read(r)?,
1069 node_id_1: Readable::read(r)?,
1070 node_id_2: Readable::read(r)?,
1071 bitcoin_key_1: Readable::read(r)?,
1072 bitcoin_key_2: Readable::read(r)?,
1074 let mut excess_data = vec![];
1075 r.read_to_end(&mut excess_data)?;
1082 impl_writeable_len_match!(ChannelAnnouncement, {
1083 { ChannelAnnouncement { contents: UnsignedChannelAnnouncement {ref features, ref excess_data, ..}, .. },
1084 2 + 2*32 + 4*33 + features.byte_count() + excess_data.len() + 4*64 }
1088 bitcoin_signature_1,
1089 bitcoin_signature_2,
1093 impl Writeable for UnsignedChannelUpdate {
1094 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1095 w.size_hint(64 + self.excess_data.len());
1096 self.chain_hash.write(w)?;
1097 self.short_channel_id.write(w)?;
1098 self.timestamp.write(w)?;
1099 self.flags.write(w)?;
1100 self.cltv_expiry_delta.write(w)?;
1101 self.htlc_minimum_msat.write(w)?;
1102 self.fee_base_msat.write(w)?;
1103 self.fee_proportional_millionths.write(w)?;
1104 w.write_all(&self.excess_data[..])?;
1109 impl<R: Read> Readable<R> for UnsignedChannelUpdate {
1110 fn read(r: &mut R) -> Result<Self, DecodeError> {
1112 chain_hash: Readable::read(r)?,
1113 short_channel_id: Readable::read(r)?,
1114 timestamp: Readable::read(r)?,
1115 flags: Readable::read(r)?,
1116 cltv_expiry_delta: Readable::read(r)?,
1117 htlc_minimum_msat: Readable::read(r)?,
1118 fee_base_msat: Readable::read(r)?,
1119 fee_proportional_millionths: Readable::read(r)?,
1121 let mut excess_data = vec![];
1122 r.read_to_end(&mut excess_data)?;
1129 impl_writeable_len_match!(ChannelUpdate, {
1130 { ChannelUpdate { contents: UnsignedChannelUpdate {ref excess_data, ..}, .. },
1131 64 + excess_data.len() + 64 }
1137 impl Writeable for ErrorMessage {
1138 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1139 w.size_hint(32 + 2 + self.data.len());
1140 self.channel_id.write(w)?;
1141 (self.data.len() as u16).write(w)?;
1142 w.write_all(self.data.as_bytes())?;
1147 impl<R: Read> Readable<R> for ErrorMessage {
1148 fn read(r: &mut R) -> Result<Self, DecodeError> {
1150 channel_id: Readable::read(r)?,
1152 let mut sz: usize = <u16 as Readable<R>>::read(r)? as usize;
1153 let mut data = vec![];
1154 let data_len = r.read_to_end(&mut data)?;
1155 sz = cmp::min(data_len, sz);
1156 match String::from_utf8(data[..sz as usize].to_vec()) {
1158 Err(_) => return Err(DecodeError::InvalidValue),
1165 impl Writeable for UnsignedNodeAnnouncement {
1166 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1167 w.size_hint(64 + 76 + self.features.byte_count() + self.addresses.len()*38 + self.excess_address_data.len() + self.excess_data.len());
1168 self.features.write(w)?;
1169 self.timestamp.write(w)?;
1170 self.node_id.write(w)?;
1171 w.write_all(&self.rgb)?;
1172 self.alias.write(w)?;
1174 let mut addrs_to_encode = self.addresses.clone();
1175 addrs_to_encode.sort_unstable_by(|a, b| { a.get_id().cmp(&b.get_id()) });
1176 addrs_to_encode.dedup_by(|a, b| { a.get_id() == b.get_id() });
1177 let mut addr_len = 0;
1178 for addr in &addrs_to_encode {
1179 addr_len += 1 + addr.len();
1181 (addr_len + self.excess_address_data.len() as u16).write(w)?;
1182 for addr in addrs_to_encode {
1185 w.write_all(&self.excess_address_data[..])?;
1186 w.write_all(&self.excess_data[..])?;
1191 impl<R: Read> Readable<R> for UnsignedNodeAnnouncement {
1192 fn read(r: &mut R) -> Result<Self, DecodeError> {
1193 let features: NodeFeatures = Readable::read(r)?;
1194 let timestamp: u32 = Readable::read(r)?;
1195 let node_id: PublicKey = Readable::read(r)?;
1196 let mut rgb = [0; 3];
1197 r.read_exact(&mut rgb)?;
1198 let alias: [u8; 32] = Readable::read(r)?;
1200 let addr_len: u16 = Readable::read(r)?;
1201 let mut addresses: Vec<NetAddress> = Vec::with_capacity(4);
1202 let mut addr_readpos = 0;
1203 let mut excess = false;
1204 let mut excess_byte = 0;
1206 if addr_len <= addr_readpos { break; }
1207 match Readable::read(r) {
1210 NetAddress::IPv4 { .. } => {
1211 if addresses.len() > 0 {
1212 return Err(DecodeError::ExtraAddressesPerType);
1215 NetAddress::IPv6 { .. } => {
1216 if addresses.len() > 1 || (addresses.len() == 1 && addresses[0].get_id() != 1) {
1217 return Err(DecodeError::ExtraAddressesPerType);
1220 NetAddress::OnionV2 { .. } => {
1221 if addresses.len() > 2 || (addresses.len() > 0 && addresses.last().unwrap().get_id() > 2) {
1222 return Err(DecodeError::ExtraAddressesPerType);
1225 NetAddress::OnionV3 { .. } => {
1226 if addresses.len() > 3 || (addresses.len() > 0 && addresses.last().unwrap().get_id() > 3) {
1227 return Err(DecodeError::ExtraAddressesPerType);
1231 if addr_len < addr_readpos + 1 + addr.len() {
1232 return Err(DecodeError::BadLengthDescriptor);
1234 addr_readpos += (1 + addr.len()) as u16;
1235 addresses.push(addr);
1237 Ok(Err(unknown_descriptor)) => {
1239 excess_byte = unknown_descriptor;
1242 Err(DecodeError::ShortRead) => return Err(DecodeError::BadLengthDescriptor),
1243 Err(e) => return Err(e),
1247 let mut excess_data = vec![];
1248 let excess_address_data = if addr_readpos < addr_len {
1249 let mut excess_address_data = vec![0; (addr_len - addr_readpos) as usize];
1250 r.read_exact(&mut excess_address_data[if excess { 1 } else { 0 }..])?;
1252 excess_address_data[0] = excess_byte;
1257 excess_data.push(excess_byte);
1261 r.read_to_end(&mut excess_data)?;
1262 Ok(UnsignedNodeAnnouncement {
1269 excess_address_data,
1275 impl_writeable_len_match!(NodeAnnouncement, {
1276 { NodeAnnouncement { contents: UnsignedNodeAnnouncement { ref features, ref addresses, ref excess_address_data, ref excess_data, ..}, .. },
1277 64 + 76 + features.byte_count() + addresses.len()*38 + excess_address_data.len() + excess_data.len() }
1287 use ln::msgs::{ChannelFeatures, InitFeatures, NodeFeatures, OptionalField, OnionErrorPacket};
1288 use ln::channelmanager::{PaymentPreimage, PaymentHash};
1289 use util::ser::Writeable;
1291 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
1292 use bitcoin_hashes::hex::FromHex;
1293 use bitcoin::util::address::Address;
1294 use bitcoin::network::constants::Network;
1295 use bitcoin::blockdata::script::Builder;
1296 use bitcoin::blockdata::opcodes;
1298 use secp256k1::key::{PublicKey,SecretKey};
1299 use secp256k1::{Secp256k1, Message};
1302 fn encoding_channel_reestablish_no_secret() {
1303 let cr = msgs::ChannelReestablish {
1304 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],
1305 next_local_commitment_number: 3,
1306 next_remote_commitment_number: 4,
1307 data_loss_protect: OptionalField::Absent,
1310 let encoded_value = cr.encode();
1313 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]
1318 fn encoding_channel_reestablish_with_secret() {
1320 let secp_ctx = Secp256k1::new();
1321 PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&hex::decode("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap())
1324 let cr = msgs::ChannelReestablish {
1325 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],
1326 next_local_commitment_number: 3,
1327 next_remote_commitment_number: 4,
1328 data_loss_protect: OptionalField::Present(msgs::DataLossProtect { your_last_per_commitment_secret: [9;32], my_current_per_commitment_point: public_key}),
1331 let encoded_value = cr.encode();
1334 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]
1338 macro_rules! get_keys_from {
1339 ($slice: expr, $secp_ctx: expr) => {
1341 let privkey = SecretKey::from_slice(&hex::decode($slice).unwrap()[..]).unwrap();
1342 let pubkey = PublicKey::from_secret_key(&$secp_ctx, &privkey);
1348 macro_rules! get_sig_on {
1349 ($privkey: expr, $ctx: expr, $string: expr) => {
1351 let sighash = Message::from_slice(&$string.into_bytes()[..]).unwrap();
1352 $ctx.sign(&sighash, &$privkey)
1358 fn encoding_announcement_signatures() {
1359 let secp_ctx = Secp256k1::new();
1360 let (privkey, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1361 let sig_1 = get_sig_on!(privkey, secp_ctx, String::from("01010101010101010101010101010101"));
1362 let sig_2 = get_sig_on!(privkey, secp_ctx, String::from("02020202020202020202020202020202"));
1363 let announcement_signatures = msgs::AnnouncementSignatures {
1364 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],
1365 short_channel_id: 2316138423780173,
1366 node_signature: sig_1,
1367 bitcoin_signature: sig_2,
1370 let encoded_value = announcement_signatures.encode();
1371 assert_eq!(encoded_value, hex::decode("040000000000000005000000000000000600000000000000070000000000000000083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073acf9953cef4700860f5967838eba2bae89288ad188ebf8b20bf995c3ea53a26df1876d0a3a0e13172ba286a673140190c02ba9da60a2e43a745188c8a83c7f3ef").unwrap());
1374 fn do_encoding_channel_announcement(unknown_features_bits: bool, non_bitcoin_chain_hash: bool, excess_data: bool) {
1375 let secp_ctx = Secp256k1::new();
1376 let (privkey_1, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1377 let (privkey_2, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1378 let (privkey_3, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1379 let (privkey_4, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1380 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1381 let sig_2 = get_sig_on!(privkey_2, secp_ctx, String::from("01010101010101010101010101010101"));
1382 let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
1383 let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
1384 let mut features = ChannelFeatures::supported();
1385 if unknown_features_bits {
1386 features = ChannelFeatures::from_le_bytes(vec![0xFF, 0xFF]);
1388 let unsigned_channel_announcement = msgs::UnsignedChannelAnnouncement {
1390 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1391 short_channel_id: 2316138423780173,
1392 node_id_1: pubkey_1,
1393 node_id_2: pubkey_2,
1394 bitcoin_key_1: pubkey_3,
1395 bitcoin_key_2: pubkey_4,
1396 excess_data: if excess_data { vec![10, 0, 0, 20, 0, 0, 30, 0, 0, 40] } else { Vec::new() },
1398 let channel_announcement = msgs::ChannelAnnouncement {
1399 node_signature_1: sig_1,
1400 node_signature_2: sig_2,
1401 bitcoin_signature_1: sig_3,
1402 bitcoin_signature_2: sig_4,
1403 contents: unsigned_channel_announcement,
1405 let encoded_value = channel_announcement.encode();
1406 let mut target_value = hex::decode("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").unwrap();
1407 if unknown_features_bits {
1408 target_value.append(&mut hex::decode("0002ffff").unwrap());
1410 target_value.append(&mut hex::decode("0000").unwrap());
1412 if non_bitcoin_chain_hash {
1413 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1415 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1417 target_value.append(&mut hex::decode("00083a840000034d031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f024d4b6cd1361032ca9bd2aeb9d900aa4d45d9ead80ac9423374c451a7254d076602531fe6068134503d2723133227c867ac8fa6c83c537e9a44c3c5bdbdcb1fe33703462779ad4aad39514614751a71085f2f10e1c7a593e4e030efb5b8721ce55b0b").unwrap());
1419 target_value.append(&mut hex::decode("0a00001400001e000028").unwrap());
1421 assert_eq!(encoded_value, target_value);
1425 fn encoding_channel_announcement() {
1426 do_encoding_channel_announcement(false, false, false);
1427 do_encoding_channel_announcement(true, false, false);
1428 do_encoding_channel_announcement(true, true, false);
1429 do_encoding_channel_announcement(true, true, true);
1430 do_encoding_channel_announcement(false, true, true);
1431 do_encoding_channel_announcement(false, false, true);
1432 do_encoding_channel_announcement(false, true, false);
1433 do_encoding_channel_announcement(true, false, true);
1436 fn do_encoding_node_announcement(unknown_features_bits: bool, ipv4: bool, ipv6: bool, onionv2: bool, onionv3: bool, excess_address_data: bool, excess_data: bool) {
1437 let secp_ctx = Secp256k1::new();
1438 let (privkey_1, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1439 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1440 let features = if unknown_features_bits {
1441 NodeFeatures::from_le_bytes(vec![0xFF, 0xFF])
1443 // Set to some features we may support
1444 NodeFeatures::from_le_bytes(vec![2 | 1 << 5])
1446 let mut addresses = Vec::new();
1448 addresses.push(msgs::NetAddress::IPv4 {
1449 addr: [255, 254, 253, 252],
1454 addresses.push(msgs::NetAddress::IPv6 {
1455 addr: [255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 245, 244, 243, 242, 241, 240],
1460 addresses.push(msgs::NetAddress::OnionV2 {
1461 addr: [255, 254, 253, 252, 251, 250, 249, 248, 247, 246],
1466 addresses.push(msgs::NetAddress::OnionV3 {
1467 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],
1473 let mut addr_len = 0;
1474 for addr in &addresses {
1475 addr_len += addr.len() + 1;
1477 let unsigned_node_announcement = msgs::UnsignedNodeAnnouncement {
1479 timestamp: 20190119,
1484 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() },
1485 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() },
1487 addr_len += unsigned_node_announcement.excess_address_data.len() as u16;
1488 let node_announcement = msgs::NodeAnnouncement {
1490 contents: unsigned_node_announcement,
1492 let encoded_value = node_announcement.encode();
1493 let mut target_value = hex::decode("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1494 if unknown_features_bits {
1495 target_value.append(&mut hex::decode("0002ffff").unwrap());
1497 target_value.append(&mut hex::decode("000122").unwrap());
1499 target_value.append(&mut hex::decode("013413a7031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f2020201010101010101010101010101010101010101010101010101010101010101010").unwrap());
1500 target_value.append(&mut vec![(addr_len >> 8) as u8, addr_len as u8]);
1502 target_value.append(&mut hex::decode("01fffefdfc2607").unwrap());
1505 target_value.append(&mut hex::decode("02fffefdfcfbfaf9f8f7f6f5f4f3f2f1f02607").unwrap());
1508 target_value.append(&mut hex::decode("03fffefdfcfbfaf9f8f7f62607").unwrap());
1511 target_value.append(&mut hex::decode("04fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0efeeedecebeae9e8e7e6e5e4e3e2e1e00020102607").unwrap());
1513 if excess_address_data {
1514 target_value.append(&mut hex::decode("216c280b5395a2546e7e4b2663e04f811622f15a4f92e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d269").unwrap());
1517 target_value.append(&mut hex::decode("3b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
1519 assert_eq!(encoded_value, target_value);
1523 fn encoding_node_announcement() {
1524 do_encoding_node_announcement(true, true, true, true, true, true, true);
1525 do_encoding_node_announcement(false, false, false, false, false, false, false);
1526 do_encoding_node_announcement(false, true, false, false, false, false, false);
1527 do_encoding_node_announcement(false, false, true, false, false, false, false);
1528 do_encoding_node_announcement(false, false, false, true, false, false, false);
1529 do_encoding_node_announcement(false, false, false, false, true, false, false);
1530 do_encoding_node_announcement(false, false, false, false, false, true, false);
1531 do_encoding_node_announcement(false, true, false, true, false, true, false);
1532 do_encoding_node_announcement(false, false, true, false, true, false, false);
1535 fn do_encoding_channel_update(non_bitcoin_chain_hash: bool, direction: bool, disable: bool, htlc_maximum_msat: bool) {
1536 let secp_ctx = Secp256k1::new();
1537 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1538 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1539 let unsigned_channel_update = msgs::UnsignedChannelUpdate {
1540 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1541 short_channel_id: 2316138423780173,
1542 timestamp: 20190119,
1543 flags: if direction { 1 } else { 0 } | if disable { 1 << 1 } else { 0 } | if htlc_maximum_msat { 1 << 8 } else { 0 },
1544 cltv_expiry_delta: 144,
1545 htlc_minimum_msat: 1000000,
1546 fee_base_msat: 10000,
1547 fee_proportional_millionths: 20,
1548 excess_data: if htlc_maximum_msat { vec![0, 0, 0, 0, 59, 154, 202, 0] } else { Vec::new() }
1550 let channel_update = msgs::ChannelUpdate {
1552 contents: unsigned_channel_update
1554 let encoded_value = channel_update.encode();
1555 let mut target_value = hex::decode("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1556 if non_bitcoin_chain_hash {
1557 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1559 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1561 target_value.append(&mut hex::decode("00083a840000034d013413a7").unwrap());
1562 if htlc_maximum_msat {
1563 target_value.append(&mut hex::decode("01").unwrap());
1565 target_value.append(&mut hex::decode("00").unwrap());
1567 target_value.append(&mut hex::decode("00").unwrap());
1569 let flag = target_value.last_mut().unwrap();
1573 let flag = target_value.last_mut().unwrap();
1574 *flag = *flag | 1 << 1;
1576 target_value.append(&mut hex::decode("009000000000000f42400000271000000014").unwrap());
1577 if htlc_maximum_msat {
1578 target_value.append(&mut hex::decode("000000003b9aca00").unwrap());
1580 assert_eq!(encoded_value, target_value);
1584 fn encoding_channel_update() {
1585 do_encoding_channel_update(false, false, false, false);
1586 do_encoding_channel_update(true, false, false, false);
1587 do_encoding_channel_update(false, true, false, false);
1588 do_encoding_channel_update(false, false, true, false);
1589 do_encoding_channel_update(false, false, false, true);
1590 do_encoding_channel_update(true, true, true, true);
1593 fn do_encoding_open_channel(non_bitcoin_chain_hash: bool, random_bit: bool, shutdown: bool) {
1594 let secp_ctx = Secp256k1::new();
1595 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1596 let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1597 let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1598 let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1599 let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
1600 let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
1601 let open_channel = msgs::OpenChannel {
1602 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1603 temporary_channel_id: [2; 32],
1604 funding_satoshis: 1311768467284833366,
1605 push_msat: 2536655962884945560,
1606 dust_limit_satoshis: 3608586615801332854,
1607 max_htlc_value_in_flight_msat: 8517154655701053848,
1608 channel_reserve_satoshis: 8665828695742877976,
1609 htlc_minimum_msat: 2316138423780173,
1610 feerate_per_kw: 821716,
1611 to_self_delay: 49340,
1612 max_accepted_htlcs: 49340,
1613 funding_pubkey: pubkey_1,
1614 revocation_basepoint: pubkey_2,
1615 payment_basepoint: pubkey_3,
1616 delayed_payment_basepoint: pubkey_4,
1617 htlc_basepoint: pubkey_5,
1618 first_per_commitment_point: pubkey_6,
1619 channel_flags: if random_bit { 1 << 5 } else { 0 },
1620 shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: pubkey_1}, Network::Testnet).script_pubkey()) } else { OptionalField::Absent }
1622 let encoded_value = open_channel.encode();
1623 let mut target_value = Vec::new();
1624 if non_bitcoin_chain_hash {
1625 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1627 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1629 target_value.append(&mut hex::decode("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").unwrap());
1631 target_value.append(&mut hex::decode("20").unwrap());
1633 target_value.append(&mut hex::decode("00").unwrap());
1636 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1638 assert_eq!(encoded_value, target_value);
1642 fn encoding_open_channel() {
1643 do_encoding_open_channel(false, false, false);
1644 do_encoding_open_channel(true, false, false);
1645 do_encoding_open_channel(false, true, false);
1646 do_encoding_open_channel(false, false, true);
1647 do_encoding_open_channel(true, true, true);
1650 fn do_encoding_accept_channel(shutdown: bool) {
1651 let secp_ctx = Secp256k1::new();
1652 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1653 let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1654 let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1655 let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1656 let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
1657 let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
1658 let accept_channel = msgs::AcceptChannel {
1659 temporary_channel_id: [2; 32],
1660 dust_limit_satoshis: 1311768467284833366,
1661 max_htlc_value_in_flight_msat: 2536655962884945560,
1662 channel_reserve_satoshis: 3608586615801332854,
1663 htlc_minimum_msat: 2316138423780173,
1664 minimum_depth: 821716,
1665 to_self_delay: 49340,
1666 max_accepted_htlcs: 49340,
1667 funding_pubkey: pubkey_1,
1668 revocation_basepoint: pubkey_2,
1669 payment_basepoint: pubkey_3,
1670 delayed_payment_basepoint: pubkey_4,
1671 htlc_basepoint: pubkey_5,
1672 first_per_commitment_point: pubkey_6,
1673 shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: pubkey_1}, Network::Testnet).script_pubkey()) } else { OptionalField::Absent }
1675 let encoded_value = accept_channel.encode();
1676 let mut target_value = hex::decode("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").unwrap();
1678 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1680 assert_eq!(encoded_value, target_value);
1684 fn encoding_accept_channel() {
1685 do_encoding_accept_channel(false);
1686 do_encoding_accept_channel(true);
1690 fn encoding_funding_created() {
1691 let secp_ctx = Secp256k1::new();
1692 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1693 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1694 let funding_created = msgs::FundingCreated {
1695 temporary_channel_id: [2; 32],
1696 funding_txid: Sha256dHash::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(),
1697 funding_output_index: 255,
1700 let encoded_value = funding_created.encode();
1701 let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202026e96fe9f8b0ddcd729ba03cfafa5a27b050b39d354dd980814268dfa9a44d4c200ffd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1702 assert_eq!(encoded_value, target_value);
1706 fn encoding_funding_signed() {
1707 let secp_ctx = Secp256k1::new();
1708 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1709 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1710 let funding_signed = msgs::FundingSigned {
1711 channel_id: [2; 32],
1714 let encoded_value = funding_signed.encode();
1715 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1716 assert_eq!(encoded_value, target_value);
1720 fn encoding_funding_locked() {
1721 let secp_ctx = Secp256k1::new();
1722 let (_, pubkey_1,) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1723 let funding_locked = msgs::FundingLocked {
1724 channel_id: [2; 32],
1725 next_per_commitment_point: pubkey_1,
1727 let encoded_value = funding_locked.encode();
1728 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
1729 assert_eq!(encoded_value, target_value);
1732 fn do_encoding_shutdown(script_type: u8) {
1733 let secp_ctx = Secp256k1::new();
1734 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1735 let script = Builder::new().push_opcode(opcodes::OP_TRUE).into_script();
1736 let shutdown = msgs::Shutdown {
1737 channel_id: [2; 32],
1738 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() },
1740 let encoded_value = shutdown.encode();
1741 let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202").unwrap();
1742 if script_type == 1 {
1743 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1744 } else if script_type == 2 {
1745 target_value.append(&mut hex::decode("0017a914da1745e9b549bd0bfa1a569971c77eba30cd5a4b87").unwrap());
1746 } else if script_type == 3 {
1747 target_value.append(&mut hex::decode("0016001479b000887626b294a914501a4cd226b58b235983").unwrap());
1748 } else if script_type == 4 {
1749 target_value.append(&mut hex::decode("002200204ae81572f06e1b88fd5ced7a1a000945432e83e1551e6f721ee9c00b8cc33260").unwrap());
1751 assert_eq!(encoded_value, target_value);
1755 fn encoding_shutdown() {
1756 do_encoding_shutdown(1);
1757 do_encoding_shutdown(2);
1758 do_encoding_shutdown(3);
1759 do_encoding_shutdown(4);
1763 fn encoding_closing_signed() {
1764 let secp_ctx = Secp256k1::new();
1765 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1766 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1767 let closing_signed = msgs::ClosingSigned {
1768 channel_id: [2; 32],
1769 fee_satoshis: 2316138423780173,
1772 let encoded_value = closing_signed.encode();
1773 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1774 assert_eq!(encoded_value, target_value);
1778 fn encoding_update_add_htlc() {
1779 let secp_ctx = Secp256k1::new();
1780 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1781 let onion_routing_packet = msgs::OnionPacket {
1783 public_key: Ok(pubkey_1),
1784 hop_data: [1; 20*65],
1787 let update_add_htlc = msgs::UpdateAddHTLC {
1788 channel_id: [2; 32],
1789 htlc_id: 2316138423780173,
1790 amount_msat: 3608586615801332854,
1791 payment_hash: PaymentHash([1; 32]),
1792 cltv_expiry: 821716,
1793 onion_routing_packet
1795 let encoded_value = update_add_htlc.encode();
1796 let target_value = hex::decode("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").unwrap();
1797 assert_eq!(encoded_value, target_value);
1801 fn encoding_update_fulfill_htlc() {
1802 let update_fulfill_htlc = msgs::UpdateFulfillHTLC {
1803 channel_id: [2; 32],
1804 htlc_id: 2316138423780173,
1805 payment_preimage: PaymentPreimage([1; 32]),
1807 let encoded_value = update_fulfill_htlc.encode();
1808 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d0101010101010101010101010101010101010101010101010101010101010101").unwrap();
1809 assert_eq!(encoded_value, target_value);
1813 fn encoding_update_fail_htlc() {
1814 let reason = OnionErrorPacket {
1815 data: [1; 32].to_vec(),
1817 let update_fail_htlc = msgs::UpdateFailHTLC {
1818 channel_id: [2; 32],
1819 htlc_id: 2316138423780173,
1822 let encoded_value = update_fail_htlc.encode();
1823 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d00200101010101010101010101010101010101010101010101010101010101010101").unwrap();
1824 assert_eq!(encoded_value, target_value);
1828 fn encoding_update_fail_malformed_htlc() {
1829 let update_fail_malformed_htlc = msgs::UpdateFailMalformedHTLC {
1830 channel_id: [2; 32],
1831 htlc_id: 2316138423780173,
1832 sha256_of_onion: [1; 32],
1835 let encoded_value = update_fail_malformed_htlc.encode();
1836 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d010101010101010101010101010101010101010101010101010101010101010100ff").unwrap();
1837 assert_eq!(encoded_value, target_value);
1840 fn do_encoding_commitment_signed(htlcs: bool) {
1841 let secp_ctx = Secp256k1::new();
1842 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1843 let (privkey_2, _) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1844 let (privkey_3, _) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1845 let (privkey_4, _) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1846 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1847 let sig_2 = get_sig_on!(privkey_2, secp_ctx, String::from("01010101010101010101010101010101"));
1848 let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
1849 let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
1850 let commitment_signed = msgs::CommitmentSigned {
1851 channel_id: [2; 32],
1853 htlc_signatures: if htlcs { vec![sig_2, sig_3, sig_4] } else { Vec::new() },
1855 let encoded_value = commitment_signed.encode();
1856 let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1858 target_value.append(&mut hex::decode("00031735b6a427e80d5fe7cd90a2f4ee08dc9c27cda7c35a4172e5d85b12c49d4232537e98f9b1f3c5e6989a8b9644e90e8918127680dbd0d4043510840fc0f1e11a216c280b5395a2546e7e4b2663e04f811622f15a4f91e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d2692b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
1860 target_value.append(&mut hex::decode("0000").unwrap());
1862 assert_eq!(encoded_value, target_value);
1866 fn encoding_commitment_signed() {
1867 do_encoding_commitment_signed(true);
1868 do_encoding_commitment_signed(false);
1872 fn encoding_revoke_and_ack() {
1873 let secp_ctx = Secp256k1::new();
1874 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1875 let raa = msgs::RevokeAndACK {
1876 channel_id: [2; 32],
1877 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],
1878 next_per_commitment_point: pubkey_1,
1880 let encoded_value = raa.encode();
1881 let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202020101010101010101010101010101010101010101010101010101010101010101031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
1882 assert_eq!(encoded_value, target_value);
1886 fn encoding_update_fee() {
1887 let update_fee = msgs::UpdateFee {
1888 channel_id: [2; 32],
1889 feerate_per_kw: 20190119,
1891 let encoded_value = update_fee.encode();
1892 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202013413a7").unwrap();
1893 assert_eq!(encoded_value, target_value);
1897 fn encoding_init() {
1898 assert_eq!(msgs::Init {
1899 features: InitFeatures::from_le_bytes(vec![0xFF, 0xFF, 0xFF]),
1900 }.encode(), hex::decode("00023fff0003ffffff").unwrap());
1901 assert_eq!(msgs::Init {
1902 features: InitFeatures::from_le_bytes(vec![0xFF]),
1903 }.encode(), hex::decode("0001ff0001ff").unwrap());
1904 assert_eq!(msgs::Init {
1905 features: InitFeatures::from_le_bytes(vec![]),
1906 }.encode(), hex::decode("00000000").unwrap());
1910 fn encoding_error() {
1911 let error = msgs::ErrorMessage {
1912 channel_id: [2; 32],
1913 data: String::from("rust-lightning"),
1915 let encoded_value = error.encode();
1916 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202000e727573742d6c696768746e696e67").unwrap();
1917 assert_eq!(encoded_value, target_value);
1921 fn encoding_ping() {
1922 let ping = msgs::Ping {
1926 let encoded_value = ping.encode();
1927 let target_value = hex::decode("0040004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
1928 assert_eq!(encoded_value, target_value);
1932 fn encoding_pong() {
1933 let pong = msgs::Pong {
1936 let encoded_value = pong.encode();
1937 let target_value = hex::decode("004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
1938 assert_eq!(encoded_value, target_value);