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};
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 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>;
609 mod fuzzy_internal_msgs {
610 // These types aren't intended to be pub, but are exposed for direct fuzzing (as we deserialize
611 // them from untrusted input):
613 pub(crate) enum OnionHopDataFormat {
614 Legacy { // aka Realm-0
615 short_channel_id: u64,
618 short_channel_id: u64,
623 pub struct OnionHopData {
624 pub(crate) format: OnionHopDataFormat,
625 pub(crate) amt_to_forward: u64,
626 pub(crate) outgoing_cltv_value: u32,
627 // 12 bytes of 0-padding for Legacy format
630 pub struct DecodedOnionErrorPacket {
631 pub(crate) hmac: [u8; 32],
632 pub(crate) failuremsg: Vec<u8>,
633 pub(crate) pad: Vec<u8>,
636 #[cfg(feature = "fuzztarget")]
637 pub use self::fuzzy_internal_msgs::*;
638 #[cfg(not(feature = "fuzztarget"))]
639 pub(crate) use self::fuzzy_internal_msgs::*;
642 pub(crate) struct OnionPacket {
643 pub(crate) version: u8,
644 /// In order to ensure we always return an error on Onion decode in compliance with BOLT 4, we
645 /// have to deserialize OnionPackets contained in UpdateAddHTLCs even if the ephemeral public
646 /// key (here) is bogus, so we hold a Result instead of a PublicKey as we'd like.
647 pub(crate) public_key: Result<PublicKey, secp256k1::Error>,
648 pub(crate) hop_data: [u8; 20*65],
649 pub(crate) hmac: [u8; 32],
652 impl PartialEq for OnionPacket {
653 fn eq(&self, other: &OnionPacket) -> bool {
654 for (i, j) in self.hop_data.iter().zip(other.hop_data.iter()) {
655 if i != j { return false; }
657 self.version == other.version &&
658 self.public_key == other.public_key &&
659 self.hmac == other.hmac
663 #[derive(Clone, PartialEq)]
664 pub(crate) struct OnionErrorPacket {
665 // This really should be a constant size slice, but the spec lets these things be up to 128KB?
666 // (TODO) We limit it in decode to much lower...
667 pub(crate) data: Vec<u8>,
670 impl Error for DecodeError {
671 fn description(&self) -> &str {
673 DecodeError::UnknownVersion => "Unknown realm byte in Onion packet",
674 DecodeError::UnknownRequiredFeature => "Unknown required feature preventing decode",
675 DecodeError::InvalidValue => "Nonsense bytes didn't map to the type they were interpreted as",
676 DecodeError::ShortRead => "Packet extended beyond the provided bytes",
677 DecodeError::ExtraAddressesPerType => "More than one address of a single type",
678 DecodeError::BadLengthDescriptor => "A length descriptor in the packet didn't describe the later data correctly",
679 DecodeError::Io(ref e) => e.description(),
683 impl fmt::Display for DecodeError {
684 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
685 f.write_str(self.description())
689 impl fmt::Debug for LightningError {
690 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
691 f.write_str(self.err)
695 impl From<::std::io::Error> for DecodeError {
696 fn from(e: ::std::io::Error) -> Self {
697 if e.kind() == ::std::io::ErrorKind::UnexpectedEof {
698 DecodeError::ShortRead
705 impl Writeable for OptionalField<Script> {
706 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
708 OptionalField::Present(ref script) => {
709 // Note that Writeable for script includes the 16-bit length tag for us
712 OptionalField::Absent => {}
718 impl<R: Read> Readable<R> for OptionalField<Script> {
719 fn read(r: &mut R) -> Result<Self, DecodeError> {
720 match <u16 as Readable<R>>::read(r) {
722 let mut buf = vec![0; len as usize];
723 r.read_exact(&mut buf)?;
724 Ok(OptionalField::Present(Script::from(buf)))
726 Err(DecodeError::ShortRead) => Ok(OptionalField::Absent),
732 impl_writeable_len_match!(AcceptChannel, {
733 {AcceptChannel{ shutdown_scriptpubkey: OptionalField::Present(ref script), .. }, 270 + 2 + script.len()},
736 temporary_channel_id,
738 max_htlc_value_in_flight_msat,
739 channel_reserve_satoshis,
745 revocation_basepoint,
747 delayed_payment_basepoint,
749 first_per_commitment_point,
750 shutdown_scriptpubkey
753 impl_writeable!(AnnouncementSignatures, 32+8+64*2, {
760 impl Writeable for ChannelReestablish {
761 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
762 w.size_hint(if let OptionalField::Present(..) = self.data_loss_protect { 32+2*8+33+32 } else { 32+2*8 });
763 self.channel_id.write(w)?;
764 self.next_local_commitment_number.write(w)?;
765 self.next_remote_commitment_number.write(w)?;
766 match self.data_loss_protect {
767 OptionalField::Present(ref data_loss_protect) => {
768 (*data_loss_protect).your_last_per_commitment_secret.write(w)?;
769 (*data_loss_protect).my_current_per_commitment_point.write(w)?;
771 OptionalField::Absent => {}
777 impl<R: Read> Readable<R> for ChannelReestablish{
778 fn read(r: &mut R) -> Result<Self, DecodeError> {
780 channel_id: Readable::read(r)?,
781 next_local_commitment_number: Readable::read(r)?,
782 next_remote_commitment_number: Readable::read(r)?,
784 match <[u8; 32] as Readable<R>>::read(r) {
785 Ok(your_last_per_commitment_secret) =>
786 OptionalField::Present(DataLossProtect {
787 your_last_per_commitment_secret,
788 my_current_per_commitment_point: Readable::read(r)?,
790 Err(DecodeError::ShortRead) => OptionalField::Absent,
791 Err(e) => return Err(e)
798 impl_writeable!(ClosingSigned, 32+8+64, {
804 impl_writeable_len_match!(CommitmentSigned, {
805 { CommitmentSigned { ref htlc_signatures, .. }, 32+64+2+htlc_signatures.len()*64 }
812 impl_writeable_len_match!(DecodedOnionErrorPacket, {
813 { DecodedOnionErrorPacket { ref failuremsg, ref pad, .. }, 32 + 4 + failuremsg.len() + pad.len() }
820 impl_writeable!(FundingCreated, 32+32+2+64, {
821 temporary_channel_id,
823 funding_output_index,
827 impl_writeable!(FundingSigned, 32+64, {
832 impl_writeable!(FundingLocked, 32+33, {
834 next_per_commitment_point
837 impl Writeable for Init {
838 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
839 // global_features gets the bottom 13 bits of our features, and local_features gets all of
840 // our relevant feature bits. This keeps us compatible with old nodes.
841 self.features.write_up_to_13(w)?;
842 self.features.write(w)
846 impl<R: Read> Readable<R> for Init {
847 fn read(r: &mut R) -> Result<Self, DecodeError> {
848 let global_features: InitFeatures = Readable::read(r)?;
849 let features: InitFeatures = Readable::read(r)?;
851 features: features.or(global_features),
856 impl_writeable_len_match!(OpenChannel, {
857 { OpenChannel { shutdown_scriptpubkey: OptionalField::Present(ref script), .. }, 319 + 2 + script.len() },
861 temporary_channel_id,
865 max_htlc_value_in_flight_msat,
866 channel_reserve_satoshis,
872 revocation_basepoint,
874 delayed_payment_basepoint,
876 first_per_commitment_point,
878 shutdown_scriptpubkey
881 impl_writeable!(RevokeAndACK, 32+32+33, {
883 per_commitment_secret,
884 next_per_commitment_point
887 impl_writeable_len_match!(Shutdown, {
888 { Shutdown { ref scriptpubkey, .. }, 32 + 2 + scriptpubkey.len() }
894 impl_writeable_len_match!(UpdateFailHTLC, {
895 { UpdateFailHTLC { ref reason, .. }, 32 + 10 + reason.data.len() }
902 impl_writeable!(UpdateFailMalformedHTLC, 32+8+32+2, {
909 impl_writeable!(UpdateFee, 32+4, {
914 impl_writeable!(UpdateFulfillHTLC, 32+8+32, {
920 impl_writeable_len_match!(OnionErrorPacket, {
921 { OnionErrorPacket { ref data, .. }, 2 + data.len() }
926 impl Writeable for OnionPacket {
927 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
928 w.size_hint(1 + 33 + 20*65 + 32);
929 self.version.write(w)?;
930 match self.public_key {
931 Ok(pubkey) => pubkey.write(w)?,
932 Err(_) => [0u8;33].write(w)?,
934 w.write_all(&self.hop_data)?;
940 impl<R: Read> Readable<R> for OnionPacket {
941 fn read(r: &mut R) -> Result<Self, DecodeError> {
943 version: Readable::read(r)?,
945 let mut buf = [0u8;33];
946 r.read_exact(&mut buf)?;
947 PublicKey::from_slice(&buf)
949 hop_data: Readable::read(r)?,
950 hmac: Readable::read(r)?,
955 impl_writeable!(UpdateAddHTLC, 32+8+8+32+4+1366, {
964 impl Writeable for OnionHopData {
965 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
968 OnionHopDataFormat::Legacy { short_channel_id } => {
970 short_channel_id.write(w)?;
971 self.amt_to_forward.write(w)?;
972 self.outgoing_cltv_value.write(w)?;
974 OnionHopDataFormat::NonFinalNode { short_channel_id } => {
975 encode_varint_length_prefixed_tlv!(w, {
976 (2, self.amt_to_forward),
977 (4, self.outgoing_cltv_value),
978 (6, short_channel_id)
981 OnionHopDataFormat::FinalNode => {
982 encode_varint_length_prefixed_tlv!(w, {
983 (2, self.amt_to_forward),
984 (4, self.outgoing_cltv_value)
989 OnionHopDataFormat::Legacy { .. } => {
990 w.write_all(&[0;12])?;
998 impl<R: Read> Readable<R> for OnionHopData {
999 fn read(mut r: &mut R) -> Result<Self, DecodeError> {
1000 use bitcoin::consensus::encode::{Decodable, Error, VarInt};
1001 let v: VarInt = Decodable::consensus_decode(&mut r)
1002 .map_err(|e| match e {
1003 Error::Io(ioe) => DecodeError::from(ioe),
1004 _ => DecodeError::InvalidValue
1006 let (format, amt, cltv_value) = if v.0 != 0 {
1007 let mut rd = FixedLengthReader { read: r, read_len: 0, max_len: v.0 };
1008 let mut amt: u64 = 0;
1009 let mut cltv_value: u32 = 0;
1010 let mut short_id: Option<u64> = None;
1011 decode_tlv!(&mut rd, {
1017 rd.eat_remaining().map_err(|_| DecodeError::ShortRead)?;
1018 let format = if let Some(short_channel_id) = short_id {
1019 OnionHopDataFormat::NonFinalNode {
1023 OnionHopDataFormat::FinalNode
1025 (format, amt, cltv_value)
1027 let format = OnionHopDataFormat::Legacy {
1028 short_channel_id: Readable::read(r)?,
1030 let amt: u64 = Readable::read(r)?;
1031 let cltv_value: u32 = Readable::read(r)?;
1032 r.read_exact(&mut [0; 12])?;
1033 (format, amt, cltv_value)
1038 amt_to_forward: amt,
1039 outgoing_cltv_value: cltv_value,
1044 impl Writeable for Ping {
1045 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1046 w.size_hint(self.byteslen as usize + 4);
1047 self.ponglen.write(w)?;
1048 vec![0u8; self.byteslen as usize].write(w)?; // size-unchecked write
1053 impl<R: Read> Readable<R> for Ping {
1054 fn read(r: &mut R) -> Result<Self, DecodeError> {
1056 ponglen: Readable::read(r)?,
1058 let byteslen = Readable::read(r)?;
1059 r.read_exact(&mut vec![0u8; byteslen as usize][..])?;
1066 impl Writeable for Pong {
1067 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1068 w.size_hint(self.byteslen as usize + 2);
1069 vec![0u8; self.byteslen as usize].write(w)?; // size-unchecked write
1074 impl<R: Read> Readable<R> for Pong {
1075 fn read(r: &mut R) -> Result<Self, DecodeError> {
1078 let byteslen = Readable::read(r)?;
1079 r.read_exact(&mut vec![0u8; byteslen as usize][..])?;
1086 impl Writeable for UnsignedChannelAnnouncement {
1087 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1088 w.size_hint(2 + 2*32 + 4*33 + self.features.byte_count() + self.excess_data.len());
1089 self.features.write(w)?;
1090 self.chain_hash.write(w)?;
1091 self.short_channel_id.write(w)?;
1092 self.node_id_1.write(w)?;
1093 self.node_id_2.write(w)?;
1094 self.bitcoin_key_1.write(w)?;
1095 self.bitcoin_key_2.write(w)?;
1096 w.write_all(&self.excess_data[..])?;
1101 impl<R: Read> Readable<R> for UnsignedChannelAnnouncement {
1102 fn read(r: &mut R) -> Result<Self, DecodeError> {
1104 features: Readable::read(r)?,
1105 chain_hash: Readable::read(r)?,
1106 short_channel_id: Readable::read(r)?,
1107 node_id_1: Readable::read(r)?,
1108 node_id_2: Readable::read(r)?,
1109 bitcoin_key_1: Readable::read(r)?,
1110 bitcoin_key_2: Readable::read(r)?,
1112 let mut excess_data = vec![];
1113 r.read_to_end(&mut excess_data)?;
1120 impl_writeable_len_match!(ChannelAnnouncement, {
1121 { ChannelAnnouncement { contents: UnsignedChannelAnnouncement {ref features, ref excess_data, ..}, .. },
1122 2 + 2*32 + 4*33 + features.byte_count() + excess_data.len() + 4*64 }
1126 bitcoin_signature_1,
1127 bitcoin_signature_2,
1131 impl Writeable for UnsignedChannelUpdate {
1132 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1133 w.size_hint(64 + self.excess_data.len());
1134 self.chain_hash.write(w)?;
1135 self.short_channel_id.write(w)?;
1136 self.timestamp.write(w)?;
1137 self.flags.write(w)?;
1138 self.cltv_expiry_delta.write(w)?;
1139 self.htlc_minimum_msat.write(w)?;
1140 self.fee_base_msat.write(w)?;
1141 self.fee_proportional_millionths.write(w)?;
1142 w.write_all(&self.excess_data[..])?;
1147 impl<R: Read> Readable<R> for UnsignedChannelUpdate {
1148 fn read(r: &mut R) -> Result<Self, DecodeError> {
1150 chain_hash: Readable::read(r)?,
1151 short_channel_id: Readable::read(r)?,
1152 timestamp: Readable::read(r)?,
1153 flags: Readable::read(r)?,
1154 cltv_expiry_delta: Readable::read(r)?,
1155 htlc_minimum_msat: Readable::read(r)?,
1156 fee_base_msat: Readable::read(r)?,
1157 fee_proportional_millionths: Readable::read(r)?,
1159 let mut excess_data = vec![];
1160 r.read_to_end(&mut excess_data)?;
1167 impl_writeable_len_match!(ChannelUpdate, {
1168 { ChannelUpdate { contents: UnsignedChannelUpdate {ref excess_data, ..}, .. },
1169 64 + excess_data.len() + 64 }
1175 impl Writeable for ErrorMessage {
1176 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1177 w.size_hint(32 + 2 + self.data.len());
1178 self.channel_id.write(w)?;
1179 (self.data.len() as u16).write(w)?;
1180 w.write_all(self.data.as_bytes())?;
1185 impl<R: Read> Readable<R> for ErrorMessage {
1186 fn read(r: &mut R) -> Result<Self, DecodeError> {
1188 channel_id: Readable::read(r)?,
1190 let mut sz: usize = <u16 as Readable<R>>::read(r)? as usize;
1191 let mut data = vec![];
1192 let data_len = r.read_to_end(&mut data)?;
1193 sz = cmp::min(data_len, sz);
1194 match String::from_utf8(data[..sz as usize].to_vec()) {
1196 Err(_) => return Err(DecodeError::InvalidValue),
1203 impl Writeable for UnsignedNodeAnnouncement {
1204 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1205 w.size_hint(64 + 76 + self.features.byte_count() + self.addresses.len()*38 + self.excess_address_data.len() + self.excess_data.len());
1206 self.features.write(w)?;
1207 self.timestamp.write(w)?;
1208 self.node_id.write(w)?;
1209 w.write_all(&self.rgb)?;
1210 self.alias.write(w)?;
1212 let mut addrs_to_encode = self.addresses.clone();
1213 addrs_to_encode.sort_unstable_by(|a, b| { a.get_id().cmp(&b.get_id()) });
1214 addrs_to_encode.dedup_by(|a, b| { a.get_id() == b.get_id() });
1215 let mut addr_len = 0;
1216 for addr in &addrs_to_encode {
1217 addr_len += 1 + addr.len();
1219 (addr_len + self.excess_address_data.len() as u16).write(w)?;
1220 for addr in addrs_to_encode {
1223 w.write_all(&self.excess_address_data[..])?;
1224 w.write_all(&self.excess_data[..])?;
1229 impl<R: Read> Readable<R> for UnsignedNodeAnnouncement {
1230 fn read(r: &mut R) -> Result<Self, DecodeError> {
1231 let features: NodeFeatures = Readable::read(r)?;
1232 let timestamp: u32 = Readable::read(r)?;
1233 let node_id: PublicKey = Readable::read(r)?;
1234 let mut rgb = [0; 3];
1235 r.read_exact(&mut rgb)?;
1236 let alias: [u8; 32] = Readable::read(r)?;
1238 let addr_len: u16 = Readable::read(r)?;
1239 let mut addresses: Vec<NetAddress> = Vec::with_capacity(4);
1240 let mut addr_readpos = 0;
1241 let mut excess = false;
1242 let mut excess_byte = 0;
1244 if addr_len <= addr_readpos { break; }
1245 match Readable::read(r) {
1248 NetAddress::IPv4 { .. } => {
1249 if addresses.len() > 0 {
1250 return Err(DecodeError::ExtraAddressesPerType);
1253 NetAddress::IPv6 { .. } => {
1254 if addresses.len() > 1 || (addresses.len() == 1 && addresses[0].get_id() != 1) {
1255 return Err(DecodeError::ExtraAddressesPerType);
1258 NetAddress::OnionV2 { .. } => {
1259 if addresses.len() > 2 || (addresses.len() > 0 && addresses.last().unwrap().get_id() > 2) {
1260 return Err(DecodeError::ExtraAddressesPerType);
1263 NetAddress::OnionV3 { .. } => {
1264 if addresses.len() > 3 || (addresses.len() > 0 && addresses.last().unwrap().get_id() > 3) {
1265 return Err(DecodeError::ExtraAddressesPerType);
1269 if addr_len < addr_readpos + 1 + addr.len() {
1270 return Err(DecodeError::BadLengthDescriptor);
1272 addr_readpos += (1 + addr.len()) as u16;
1273 addresses.push(addr);
1275 Ok(Err(unknown_descriptor)) => {
1277 excess_byte = unknown_descriptor;
1280 Err(DecodeError::ShortRead) => return Err(DecodeError::BadLengthDescriptor),
1281 Err(e) => return Err(e),
1285 let mut excess_data = vec![];
1286 let excess_address_data = if addr_readpos < addr_len {
1287 let mut excess_address_data = vec![0; (addr_len - addr_readpos) as usize];
1288 r.read_exact(&mut excess_address_data[if excess { 1 } else { 0 }..])?;
1290 excess_address_data[0] = excess_byte;
1295 excess_data.push(excess_byte);
1299 r.read_to_end(&mut excess_data)?;
1300 Ok(UnsignedNodeAnnouncement {
1307 excess_address_data,
1313 impl_writeable_len_match!(NodeAnnouncement, {
1314 { NodeAnnouncement { contents: UnsignedNodeAnnouncement { ref features, ref addresses, ref excess_address_data, ref excess_data, ..}, .. },
1315 64 + 76 + features.byte_count() + addresses.len()*38 + excess_address_data.len() + excess_data.len() }
1325 use ln::msgs::{ChannelFeatures, InitFeatures, NodeFeatures, OptionalField, OnionErrorPacket, OnionHopDataFormat};
1326 use ln::channelmanager::{PaymentPreimage, PaymentHash};
1327 use util::ser::{Writeable, Readable};
1329 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
1330 use bitcoin_hashes::hex::FromHex;
1331 use bitcoin::util::address::Address;
1332 use bitcoin::network::constants::Network;
1333 use bitcoin::blockdata::script::Builder;
1334 use bitcoin::blockdata::opcodes;
1336 use secp256k1::key::{PublicKey,SecretKey};
1337 use secp256k1::{Secp256k1, Message};
1339 use std::io::Cursor;
1342 fn encoding_channel_reestablish_no_secret() {
1343 let cr = msgs::ChannelReestablish {
1344 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],
1345 next_local_commitment_number: 3,
1346 next_remote_commitment_number: 4,
1347 data_loss_protect: OptionalField::Absent,
1350 let encoded_value = cr.encode();
1353 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]
1358 fn encoding_channel_reestablish_with_secret() {
1360 let secp_ctx = Secp256k1::new();
1361 PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&hex::decode("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap())
1364 let cr = msgs::ChannelReestablish {
1365 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],
1366 next_local_commitment_number: 3,
1367 next_remote_commitment_number: 4,
1368 data_loss_protect: OptionalField::Present(msgs::DataLossProtect { your_last_per_commitment_secret: [9;32], my_current_per_commitment_point: public_key}),
1371 let encoded_value = cr.encode();
1374 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]
1378 macro_rules! get_keys_from {
1379 ($slice: expr, $secp_ctx: expr) => {
1381 let privkey = SecretKey::from_slice(&hex::decode($slice).unwrap()[..]).unwrap();
1382 let pubkey = PublicKey::from_secret_key(&$secp_ctx, &privkey);
1388 macro_rules! get_sig_on {
1389 ($privkey: expr, $ctx: expr, $string: expr) => {
1391 let sighash = Message::from_slice(&$string.into_bytes()[..]).unwrap();
1392 $ctx.sign(&sighash, &$privkey)
1398 fn encoding_announcement_signatures() {
1399 let secp_ctx = Secp256k1::new();
1400 let (privkey, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1401 let sig_1 = get_sig_on!(privkey, secp_ctx, String::from("01010101010101010101010101010101"));
1402 let sig_2 = get_sig_on!(privkey, secp_ctx, String::from("02020202020202020202020202020202"));
1403 let announcement_signatures = msgs::AnnouncementSignatures {
1404 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],
1405 short_channel_id: 2316138423780173,
1406 node_signature: sig_1,
1407 bitcoin_signature: sig_2,
1410 let encoded_value = announcement_signatures.encode();
1411 assert_eq!(encoded_value, hex::decode("040000000000000005000000000000000600000000000000070000000000000000083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073acf9953cef4700860f5967838eba2bae89288ad188ebf8b20bf995c3ea53a26df1876d0a3a0e13172ba286a673140190c02ba9da60a2e43a745188c8a83c7f3ef").unwrap());
1414 fn do_encoding_channel_announcement(unknown_features_bits: bool, non_bitcoin_chain_hash: bool, excess_data: bool) {
1415 let secp_ctx = Secp256k1::new();
1416 let (privkey_1, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1417 let (privkey_2, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1418 let (privkey_3, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1419 let (privkey_4, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1420 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1421 let sig_2 = get_sig_on!(privkey_2, secp_ctx, String::from("01010101010101010101010101010101"));
1422 let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
1423 let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
1424 let mut features = ChannelFeatures::supported();
1425 if unknown_features_bits {
1426 features = ChannelFeatures::from_le_bytes(vec![0xFF, 0xFF]);
1428 let unsigned_channel_announcement = msgs::UnsignedChannelAnnouncement {
1430 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1431 short_channel_id: 2316138423780173,
1432 node_id_1: pubkey_1,
1433 node_id_2: pubkey_2,
1434 bitcoin_key_1: pubkey_3,
1435 bitcoin_key_2: pubkey_4,
1436 excess_data: if excess_data { vec![10, 0, 0, 20, 0, 0, 30, 0, 0, 40] } else { Vec::new() },
1438 let channel_announcement = msgs::ChannelAnnouncement {
1439 node_signature_1: sig_1,
1440 node_signature_2: sig_2,
1441 bitcoin_signature_1: sig_3,
1442 bitcoin_signature_2: sig_4,
1443 contents: unsigned_channel_announcement,
1445 let encoded_value = channel_announcement.encode();
1446 let mut target_value = hex::decode("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").unwrap();
1447 if unknown_features_bits {
1448 target_value.append(&mut hex::decode("0002ffff").unwrap());
1450 target_value.append(&mut hex::decode("0000").unwrap());
1452 if non_bitcoin_chain_hash {
1453 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1455 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1457 target_value.append(&mut hex::decode("00083a840000034d031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f024d4b6cd1361032ca9bd2aeb9d900aa4d45d9ead80ac9423374c451a7254d076602531fe6068134503d2723133227c867ac8fa6c83c537e9a44c3c5bdbdcb1fe33703462779ad4aad39514614751a71085f2f10e1c7a593e4e030efb5b8721ce55b0b").unwrap());
1459 target_value.append(&mut hex::decode("0a00001400001e000028").unwrap());
1461 assert_eq!(encoded_value, target_value);
1465 fn encoding_channel_announcement() {
1466 do_encoding_channel_announcement(false, false, false);
1467 do_encoding_channel_announcement(true, false, false);
1468 do_encoding_channel_announcement(true, true, false);
1469 do_encoding_channel_announcement(true, true, true);
1470 do_encoding_channel_announcement(false, true, true);
1471 do_encoding_channel_announcement(false, false, true);
1472 do_encoding_channel_announcement(false, true, false);
1473 do_encoding_channel_announcement(true, false, true);
1476 fn do_encoding_node_announcement(unknown_features_bits: bool, ipv4: bool, ipv6: bool, onionv2: bool, onionv3: bool, excess_address_data: bool, excess_data: bool) {
1477 let secp_ctx = Secp256k1::new();
1478 let (privkey_1, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1479 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1480 let features = if unknown_features_bits {
1481 NodeFeatures::from_le_bytes(vec![0xFF, 0xFF])
1483 // Set to some features we may support
1484 NodeFeatures::from_le_bytes(vec![2 | 1 << 5])
1486 let mut addresses = Vec::new();
1488 addresses.push(msgs::NetAddress::IPv4 {
1489 addr: [255, 254, 253, 252],
1494 addresses.push(msgs::NetAddress::IPv6 {
1495 addr: [255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 245, 244, 243, 242, 241, 240],
1500 addresses.push(msgs::NetAddress::OnionV2 {
1501 addr: [255, 254, 253, 252, 251, 250, 249, 248, 247, 246],
1506 addresses.push(msgs::NetAddress::OnionV3 {
1507 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],
1513 let mut addr_len = 0;
1514 for addr in &addresses {
1515 addr_len += addr.len() + 1;
1517 let unsigned_node_announcement = msgs::UnsignedNodeAnnouncement {
1519 timestamp: 20190119,
1524 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() },
1525 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() },
1527 addr_len += unsigned_node_announcement.excess_address_data.len() as u16;
1528 let node_announcement = msgs::NodeAnnouncement {
1530 contents: unsigned_node_announcement,
1532 let encoded_value = node_announcement.encode();
1533 let mut target_value = hex::decode("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1534 if unknown_features_bits {
1535 target_value.append(&mut hex::decode("0002ffff").unwrap());
1537 target_value.append(&mut hex::decode("000122").unwrap());
1539 target_value.append(&mut hex::decode("013413a7031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f2020201010101010101010101010101010101010101010101010101010101010101010").unwrap());
1540 target_value.append(&mut vec![(addr_len >> 8) as u8, addr_len as u8]);
1542 target_value.append(&mut hex::decode("01fffefdfc2607").unwrap());
1545 target_value.append(&mut hex::decode("02fffefdfcfbfaf9f8f7f6f5f4f3f2f1f02607").unwrap());
1548 target_value.append(&mut hex::decode("03fffefdfcfbfaf9f8f7f62607").unwrap());
1551 target_value.append(&mut hex::decode("04fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0efeeedecebeae9e8e7e6e5e4e3e2e1e00020102607").unwrap());
1553 if excess_address_data {
1554 target_value.append(&mut hex::decode("216c280b5395a2546e7e4b2663e04f811622f15a4f92e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d269").unwrap());
1557 target_value.append(&mut hex::decode("3b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
1559 assert_eq!(encoded_value, target_value);
1563 fn encoding_node_announcement() {
1564 do_encoding_node_announcement(true, true, true, true, true, true, true);
1565 do_encoding_node_announcement(false, false, false, false, false, false, false);
1566 do_encoding_node_announcement(false, true, false, false, false, false, false);
1567 do_encoding_node_announcement(false, false, true, false, false, false, false);
1568 do_encoding_node_announcement(false, false, false, true, false, false, false);
1569 do_encoding_node_announcement(false, false, false, false, true, false, false);
1570 do_encoding_node_announcement(false, false, false, false, false, true, false);
1571 do_encoding_node_announcement(false, true, false, true, false, true, false);
1572 do_encoding_node_announcement(false, false, true, false, true, false, false);
1575 fn do_encoding_channel_update(non_bitcoin_chain_hash: bool, direction: bool, disable: bool, htlc_maximum_msat: bool) {
1576 let secp_ctx = Secp256k1::new();
1577 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1578 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1579 let unsigned_channel_update = msgs::UnsignedChannelUpdate {
1580 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1581 short_channel_id: 2316138423780173,
1582 timestamp: 20190119,
1583 flags: if direction { 1 } else { 0 } | if disable { 1 << 1 } else { 0 } | if htlc_maximum_msat { 1 << 8 } else { 0 },
1584 cltv_expiry_delta: 144,
1585 htlc_minimum_msat: 1000000,
1586 fee_base_msat: 10000,
1587 fee_proportional_millionths: 20,
1588 excess_data: if htlc_maximum_msat { vec![0, 0, 0, 0, 59, 154, 202, 0] } else { Vec::new() }
1590 let channel_update = msgs::ChannelUpdate {
1592 contents: unsigned_channel_update
1594 let encoded_value = channel_update.encode();
1595 let mut target_value = hex::decode("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1596 if non_bitcoin_chain_hash {
1597 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1599 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1601 target_value.append(&mut hex::decode("00083a840000034d013413a7").unwrap());
1602 if htlc_maximum_msat {
1603 target_value.append(&mut hex::decode("01").unwrap());
1605 target_value.append(&mut hex::decode("00").unwrap());
1607 target_value.append(&mut hex::decode("00").unwrap());
1609 let flag = target_value.last_mut().unwrap();
1613 let flag = target_value.last_mut().unwrap();
1614 *flag = *flag | 1 << 1;
1616 target_value.append(&mut hex::decode("009000000000000f42400000271000000014").unwrap());
1617 if htlc_maximum_msat {
1618 target_value.append(&mut hex::decode("000000003b9aca00").unwrap());
1620 assert_eq!(encoded_value, target_value);
1624 fn encoding_channel_update() {
1625 do_encoding_channel_update(false, false, false, false);
1626 do_encoding_channel_update(true, false, false, false);
1627 do_encoding_channel_update(false, true, false, false);
1628 do_encoding_channel_update(false, false, true, false);
1629 do_encoding_channel_update(false, false, false, true);
1630 do_encoding_channel_update(true, true, true, true);
1633 fn do_encoding_open_channel(non_bitcoin_chain_hash: bool, random_bit: bool, shutdown: bool) {
1634 let secp_ctx = Secp256k1::new();
1635 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1636 let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1637 let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1638 let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1639 let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
1640 let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
1641 let open_channel = msgs::OpenChannel {
1642 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1643 temporary_channel_id: [2; 32],
1644 funding_satoshis: 1311768467284833366,
1645 push_msat: 2536655962884945560,
1646 dust_limit_satoshis: 3608586615801332854,
1647 max_htlc_value_in_flight_msat: 8517154655701053848,
1648 channel_reserve_satoshis: 8665828695742877976,
1649 htlc_minimum_msat: 2316138423780173,
1650 feerate_per_kw: 821716,
1651 to_self_delay: 49340,
1652 max_accepted_htlcs: 49340,
1653 funding_pubkey: pubkey_1,
1654 revocation_basepoint: pubkey_2,
1655 payment_basepoint: pubkey_3,
1656 delayed_payment_basepoint: pubkey_4,
1657 htlc_basepoint: pubkey_5,
1658 first_per_commitment_point: pubkey_6,
1659 channel_flags: if random_bit { 1 << 5 } else { 0 },
1660 shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: pubkey_1}, Network::Testnet).script_pubkey()) } else { OptionalField::Absent }
1662 let encoded_value = open_channel.encode();
1663 let mut target_value = Vec::new();
1664 if non_bitcoin_chain_hash {
1665 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1667 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1669 target_value.append(&mut hex::decode("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").unwrap());
1671 target_value.append(&mut hex::decode("20").unwrap());
1673 target_value.append(&mut hex::decode("00").unwrap());
1676 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1678 assert_eq!(encoded_value, target_value);
1682 fn encoding_open_channel() {
1683 do_encoding_open_channel(false, false, false);
1684 do_encoding_open_channel(true, false, false);
1685 do_encoding_open_channel(false, true, false);
1686 do_encoding_open_channel(false, false, true);
1687 do_encoding_open_channel(true, true, true);
1690 fn do_encoding_accept_channel(shutdown: bool) {
1691 let secp_ctx = Secp256k1::new();
1692 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1693 let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1694 let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1695 let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1696 let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
1697 let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
1698 let accept_channel = msgs::AcceptChannel {
1699 temporary_channel_id: [2; 32],
1700 dust_limit_satoshis: 1311768467284833366,
1701 max_htlc_value_in_flight_msat: 2536655962884945560,
1702 channel_reserve_satoshis: 3608586615801332854,
1703 htlc_minimum_msat: 2316138423780173,
1704 minimum_depth: 821716,
1705 to_self_delay: 49340,
1706 max_accepted_htlcs: 49340,
1707 funding_pubkey: pubkey_1,
1708 revocation_basepoint: pubkey_2,
1709 payment_basepoint: pubkey_3,
1710 delayed_payment_basepoint: pubkey_4,
1711 htlc_basepoint: pubkey_5,
1712 first_per_commitment_point: pubkey_6,
1713 shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: pubkey_1}, Network::Testnet).script_pubkey()) } else { OptionalField::Absent }
1715 let encoded_value = accept_channel.encode();
1716 let mut target_value = hex::decode("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").unwrap();
1718 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1720 assert_eq!(encoded_value, target_value);
1724 fn encoding_accept_channel() {
1725 do_encoding_accept_channel(false);
1726 do_encoding_accept_channel(true);
1730 fn encoding_funding_created() {
1731 let secp_ctx = Secp256k1::new();
1732 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1733 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1734 let funding_created = msgs::FundingCreated {
1735 temporary_channel_id: [2; 32],
1736 funding_txid: Sha256dHash::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(),
1737 funding_output_index: 255,
1740 let encoded_value = funding_created.encode();
1741 let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202026e96fe9f8b0ddcd729ba03cfafa5a27b050b39d354dd980814268dfa9a44d4c200ffd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1742 assert_eq!(encoded_value, target_value);
1746 fn encoding_funding_signed() {
1747 let secp_ctx = Secp256k1::new();
1748 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1749 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1750 let funding_signed = msgs::FundingSigned {
1751 channel_id: [2; 32],
1754 let encoded_value = funding_signed.encode();
1755 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1756 assert_eq!(encoded_value, target_value);
1760 fn encoding_funding_locked() {
1761 let secp_ctx = Secp256k1::new();
1762 let (_, pubkey_1,) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1763 let funding_locked = msgs::FundingLocked {
1764 channel_id: [2; 32],
1765 next_per_commitment_point: pubkey_1,
1767 let encoded_value = funding_locked.encode();
1768 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
1769 assert_eq!(encoded_value, target_value);
1772 fn do_encoding_shutdown(script_type: u8) {
1773 let secp_ctx = Secp256k1::new();
1774 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1775 let script = Builder::new().push_opcode(opcodes::OP_TRUE).into_script();
1776 let shutdown = msgs::Shutdown {
1777 channel_id: [2; 32],
1778 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() },
1780 let encoded_value = shutdown.encode();
1781 let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202").unwrap();
1782 if script_type == 1 {
1783 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1784 } else if script_type == 2 {
1785 target_value.append(&mut hex::decode("0017a914da1745e9b549bd0bfa1a569971c77eba30cd5a4b87").unwrap());
1786 } else if script_type == 3 {
1787 target_value.append(&mut hex::decode("0016001479b000887626b294a914501a4cd226b58b235983").unwrap());
1788 } else if script_type == 4 {
1789 target_value.append(&mut hex::decode("002200204ae81572f06e1b88fd5ced7a1a000945432e83e1551e6f721ee9c00b8cc33260").unwrap());
1791 assert_eq!(encoded_value, target_value);
1795 fn encoding_shutdown() {
1796 do_encoding_shutdown(1);
1797 do_encoding_shutdown(2);
1798 do_encoding_shutdown(3);
1799 do_encoding_shutdown(4);
1803 fn encoding_closing_signed() {
1804 let secp_ctx = Secp256k1::new();
1805 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1806 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1807 let closing_signed = msgs::ClosingSigned {
1808 channel_id: [2; 32],
1809 fee_satoshis: 2316138423780173,
1812 let encoded_value = closing_signed.encode();
1813 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1814 assert_eq!(encoded_value, target_value);
1818 fn encoding_update_add_htlc() {
1819 let secp_ctx = Secp256k1::new();
1820 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1821 let onion_routing_packet = msgs::OnionPacket {
1823 public_key: Ok(pubkey_1),
1824 hop_data: [1; 20*65],
1827 let update_add_htlc = msgs::UpdateAddHTLC {
1828 channel_id: [2; 32],
1829 htlc_id: 2316138423780173,
1830 amount_msat: 3608586615801332854,
1831 payment_hash: PaymentHash([1; 32]),
1832 cltv_expiry: 821716,
1833 onion_routing_packet
1835 let encoded_value = update_add_htlc.encode();
1836 let target_value = hex::decode("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").unwrap();
1837 assert_eq!(encoded_value, target_value);
1841 fn encoding_update_fulfill_htlc() {
1842 let update_fulfill_htlc = msgs::UpdateFulfillHTLC {
1843 channel_id: [2; 32],
1844 htlc_id: 2316138423780173,
1845 payment_preimage: PaymentPreimage([1; 32]),
1847 let encoded_value = update_fulfill_htlc.encode();
1848 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d0101010101010101010101010101010101010101010101010101010101010101").unwrap();
1849 assert_eq!(encoded_value, target_value);
1853 fn encoding_update_fail_htlc() {
1854 let reason = OnionErrorPacket {
1855 data: [1; 32].to_vec(),
1857 let update_fail_htlc = msgs::UpdateFailHTLC {
1858 channel_id: [2; 32],
1859 htlc_id: 2316138423780173,
1862 let encoded_value = update_fail_htlc.encode();
1863 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d00200101010101010101010101010101010101010101010101010101010101010101").unwrap();
1864 assert_eq!(encoded_value, target_value);
1868 fn encoding_update_fail_malformed_htlc() {
1869 let update_fail_malformed_htlc = msgs::UpdateFailMalformedHTLC {
1870 channel_id: [2; 32],
1871 htlc_id: 2316138423780173,
1872 sha256_of_onion: [1; 32],
1875 let encoded_value = update_fail_malformed_htlc.encode();
1876 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d010101010101010101010101010101010101010101010101010101010101010100ff").unwrap();
1877 assert_eq!(encoded_value, target_value);
1880 fn do_encoding_commitment_signed(htlcs: bool) {
1881 let secp_ctx = Secp256k1::new();
1882 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1883 let (privkey_2, _) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1884 let (privkey_3, _) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1885 let (privkey_4, _) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1886 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1887 let sig_2 = get_sig_on!(privkey_2, secp_ctx, String::from("01010101010101010101010101010101"));
1888 let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
1889 let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
1890 let commitment_signed = msgs::CommitmentSigned {
1891 channel_id: [2; 32],
1893 htlc_signatures: if htlcs { vec![sig_2, sig_3, sig_4] } else { Vec::new() },
1895 let encoded_value = commitment_signed.encode();
1896 let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1898 target_value.append(&mut hex::decode("00031735b6a427e80d5fe7cd90a2f4ee08dc9c27cda7c35a4172e5d85b12c49d4232537e98f9b1f3c5e6989a8b9644e90e8918127680dbd0d4043510840fc0f1e11a216c280b5395a2546e7e4b2663e04f811622f15a4f91e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d2692b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
1900 target_value.append(&mut hex::decode("0000").unwrap());
1902 assert_eq!(encoded_value, target_value);
1906 fn encoding_commitment_signed() {
1907 do_encoding_commitment_signed(true);
1908 do_encoding_commitment_signed(false);
1912 fn encoding_revoke_and_ack() {
1913 let secp_ctx = Secp256k1::new();
1914 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1915 let raa = msgs::RevokeAndACK {
1916 channel_id: [2; 32],
1917 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],
1918 next_per_commitment_point: pubkey_1,
1920 let encoded_value = raa.encode();
1921 let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202020101010101010101010101010101010101010101010101010101010101010101031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
1922 assert_eq!(encoded_value, target_value);
1926 fn encoding_update_fee() {
1927 let update_fee = msgs::UpdateFee {
1928 channel_id: [2; 32],
1929 feerate_per_kw: 20190119,
1931 let encoded_value = update_fee.encode();
1932 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202013413a7").unwrap();
1933 assert_eq!(encoded_value, target_value);
1937 fn encoding_init() {
1938 assert_eq!(msgs::Init {
1939 features: InitFeatures::from_le_bytes(vec![0xFF, 0xFF, 0xFF]),
1940 }.encode(), hex::decode("00023fff0003ffffff").unwrap());
1941 assert_eq!(msgs::Init {
1942 features: InitFeatures::from_le_bytes(vec![0xFF]),
1943 }.encode(), hex::decode("0001ff0001ff").unwrap());
1944 assert_eq!(msgs::Init {
1945 features: InitFeatures::from_le_bytes(vec![]),
1946 }.encode(), hex::decode("00000000").unwrap());
1950 fn encoding_error() {
1951 let error = msgs::ErrorMessage {
1952 channel_id: [2; 32],
1953 data: String::from("rust-lightning"),
1955 let encoded_value = error.encode();
1956 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202000e727573742d6c696768746e696e67").unwrap();
1957 assert_eq!(encoded_value, target_value);
1961 fn encoding_ping() {
1962 let ping = msgs::Ping {
1966 let encoded_value = ping.encode();
1967 let target_value = hex::decode("0040004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
1968 assert_eq!(encoded_value, target_value);
1972 fn encoding_pong() {
1973 let pong = msgs::Pong {
1976 let encoded_value = pong.encode();
1977 let target_value = hex::decode("004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
1978 assert_eq!(encoded_value, target_value);
1982 fn encoding_legacy_onion_hop_data() {
1983 let msg = msgs::OnionHopData {
1984 format: OnionHopDataFormat::Legacy {
1985 short_channel_id: 0xdeadbeef1bad1dea,
1987 amt_to_forward: 0x0badf00d01020304,
1988 outgoing_cltv_value: 0xffffffff,
1990 let encoded_value = msg.encode();
1991 let target_value = hex::decode("00deadbeef1bad1dea0badf00d01020304ffffffff000000000000000000000000").unwrap();
1992 assert_eq!(encoded_value, target_value);
1996 fn encoding_nonfinal_onion_hop_data() {
1997 let mut msg = msgs::OnionHopData {
1998 format: OnionHopDataFormat::NonFinalNode {
1999 short_channel_id: 0xdeadbeef1bad1dea,
2001 amt_to_forward: 0x0badf00d01020304,
2002 outgoing_cltv_value: 0xffffffff,
2004 let encoded_value = msg.encode();
2005 let target_value = hex::decode("1a02080badf00d010203040404ffffffff0608deadbeef1bad1dea").unwrap();
2006 assert_eq!(encoded_value, target_value);
2007 msg = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
2008 if let OnionHopDataFormat::NonFinalNode { short_channel_id } = msg.format {
2009 assert_eq!(short_channel_id, 0xdeadbeef1bad1dea);
2010 } else { panic!(); }
2011 assert_eq!(msg.amt_to_forward, 0x0badf00d01020304);
2012 assert_eq!(msg.outgoing_cltv_value, 0xffffffff);
2016 fn encoding_final_onion_hop_data() {
2017 let mut msg = msgs::OnionHopData {
2018 format: OnionHopDataFormat::FinalNode,
2019 amt_to_forward: 0x0badf00d01020304,
2020 outgoing_cltv_value: 0xffffffff,
2022 let encoded_value = msg.encode();
2023 let target_value = hex::decode("1002080badf00d010203040404ffffffff").unwrap();
2024 assert_eq!(encoded_value, target_value);
2025 msg = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
2026 if let OnionHopDataFormat::FinalNode = msg.format { } else { panic!(); }
2027 assert_eq!(msg.amt_to_forward, 0x0badf00d01020304);
2028 assert_eq!(msg.outgoing_cltv_value, 0xffffffff);