1 //! Wire messages, traits representing wire message handlers, and a few error types live here.
3 //! For a normal node you probably don't need to use anything here, however, if you wish to split a
4 //! node into an internet-facing route/message socket handling daemon and a separate daemon (or
5 //! server entirely) which handles only channel-related messages you may wish to implement
6 //! ChannelMessageHandler yourself and use it to re-serialize messages and pass them across
9 //! Note that if you go with such an architecture (instead of passing raw socket events to a
10 //! non-internet-facing system) you trust the frontend internet-facing system to not lie about the
11 //! source node_id of the message, however this does allow you to significantly reduce bandwidth
12 //! between the systems as routing messages can represent a significant chunk of bandwidth usage
13 //! (especially for non-channel-publicly-announcing nodes). As an alternate design which avoids
14 //! this issue, if you have sufficient bidirectional bandwidth between your systems, you may send
15 //! raw socket events into your non-internet-facing system and then send routing events back to
16 //! track the network on the less-secure system.
18 use secp256k1::key::PublicKey;
19 use secp256k1::Signature;
21 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
22 use bitcoin::blockdata::script::Script;
24 use ln::features::{ChannelFeatures, InitFeatures, NodeFeatures};
26 use std::error::Error;
29 use std::result::Result;
32 use util::ser::{Readable, Writeable, Writer, FixedLengthReader, HighZeroBytesDroppedVarInt};
34 use ln::channelmanager::{PaymentPreimage, PaymentHash, PaymentSecret};
36 /// 21 million * 10^8 * 1000
37 pub(crate) const MAX_VALUE_MSAT: u64 = 21_000_000_0000_0000_000;
39 /// An error in decoding a message or struct.
41 pub enum DecodeError {
42 /// A version byte specified something we don't know how to handle.
43 /// Includes unknown realm byte in an OnionHopData packet
45 /// Unknown feature mandating we fail to parse message (eg TLV with an even, unknown type)
46 UnknownRequiredFeature,
47 /// Value was invalid, eg a byte which was supposed to be a bool was something other than a 0
48 /// or 1, a public key/private key/signature was invalid, text wasn't UTF-8, TLV was
49 /// syntactically incorrect, etc
53 /// A length descriptor in the packet didn't describe the later data correctly
55 /// Error from std::io
59 /// An init message to be sent or received from a peer
61 #[cfg(not(feature = "fuzztarget"))]
62 pub(crate) features: InitFeatures,
63 #[cfg(feature = "fuzztarget")]
64 pub features: InitFeatures,
67 /// An error message to be sent or received from a peer
69 pub struct ErrorMessage {
70 pub(crate) channel_id: [u8; 32],
71 pub(crate) data: String,
74 /// A ping message to be sent or received from a peer
76 pub(crate) ponglen: u16,
77 pub(crate) byteslen: u16,
80 /// A pong message to be sent or received from a peer
82 pub(crate) byteslen: u16,
85 /// An open_channel message to be sent or received from a peer
87 pub struct OpenChannel {
88 pub(crate) chain_hash: Sha256dHash,
89 pub(crate) temporary_channel_id: [u8; 32],
90 pub(crate) funding_satoshis: u64,
91 pub(crate) push_msat: u64,
92 pub(crate) dust_limit_satoshis: u64,
93 pub(crate) max_htlc_value_in_flight_msat: u64,
94 pub(crate) channel_reserve_satoshis: u64,
95 pub(crate) htlc_minimum_msat: u64,
96 pub(crate) feerate_per_kw: u32,
97 pub(crate) to_self_delay: u16,
98 pub(crate) max_accepted_htlcs: u16,
99 pub(crate) funding_pubkey: PublicKey,
100 pub(crate) revocation_basepoint: PublicKey,
101 pub(crate) payment_basepoint: PublicKey,
102 pub(crate) delayed_payment_basepoint: PublicKey,
103 pub(crate) htlc_basepoint: PublicKey,
104 pub(crate) first_per_commitment_point: PublicKey,
105 pub(crate) channel_flags: u8,
106 pub(crate) shutdown_scriptpubkey: OptionalField<Script>,
109 /// An accept_channel message to be sent or received from a peer
111 pub struct AcceptChannel {
112 pub(crate) temporary_channel_id: [u8; 32],
113 pub(crate) dust_limit_satoshis: u64,
114 pub(crate) max_htlc_value_in_flight_msat: u64,
115 pub(crate) channel_reserve_satoshis: u64,
116 pub(crate) htlc_minimum_msat: u64,
117 pub(crate) minimum_depth: u32,
118 pub(crate) to_self_delay: u16,
119 pub(crate) max_accepted_htlcs: u16,
120 pub(crate) funding_pubkey: PublicKey,
121 pub(crate) revocation_basepoint: PublicKey,
122 pub(crate) payment_basepoint: PublicKey,
123 pub(crate) delayed_payment_basepoint: PublicKey,
124 pub(crate) htlc_basepoint: PublicKey,
125 pub(crate) first_per_commitment_point: PublicKey,
126 pub(crate) shutdown_scriptpubkey: OptionalField<Script>
129 /// A funding_created message to be sent or received from a peer
131 pub struct FundingCreated {
132 pub(crate) temporary_channel_id: [u8; 32],
133 pub(crate) funding_txid: Sha256dHash,
134 pub(crate) funding_output_index: u16,
135 pub(crate) signature: Signature,
138 /// A funding_signed message to be sent or received from a peer
140 pub struct FundingSigned {
141 pub(crate) channel_id: [u8; 32],
142 pub(crate) signature: Signature,
145 /// A funding_locked message to be sent or received from a peer
146 #[derive(Clone, PartialEq)]
147 #[allow(missing_docs)]
148 pub struct FundingLocked {
149 pub channel_id: [u8; 32],
150 pub next_per_commitment_point: PublicKey,
153 /// A shutdown message to be sent or received from a peer
154 #[derive(Clone, PartialEq)]
155 pub struct Shutdown {
156 pub(crate) channel_id: [u8; 32],
157 pub(crate) scriptpubkey: Script,
160 /// A closing_signed message to be sent or received from a peer
161 #[derive(Clone, PartialEq)]
162 pub struct ClosingSigned {
163 pub(crate) channel_id: [u8; 32],
164 pub(crate) fee_satoshis: u64,
165 pub(crate) signature: Signature,
168 /// An update_add_htlc message to be sent or received from a peer
169 #[derive(Clone, PartialEq)]
170 pub struct UpdateAddHTLC {
171 pub(crate) channel_id: [u8; 32],
172 pub(crate) htlc_id: u64,
173 pub(crate) amount_msat: u64,
174 pub(crate) payment_hash: PaymentHash,
175 pub(crate) cltv_expiry: u32,
176 pub(crate) onion_routing_packet: OnionPacket,
179 /// An update_fulfill_htlc message to be sent or received from a peer
180 #[derive(Clone, PartialEq)]
181 pub struct UpdateFulfillHTLC {
182 pub(crate) channel_id: [u8; 32],
183 pub(crate) htlc_id: u64,
184 pub(crate) payment_preimage: PaymentPreimage,
187 /// An update_fail_htlc message to be sent or received from a peer
188 #[derive(Clone, PartialEq)]
189 pub struct UpdateFailHTLC {
190 pub(crate) channel_id: [u8; 32],
191 pub(crate) htlc_id: u64,
192 pub(crate) reason: OnionErrorPacket,
195 /// An update_fail_malformed_htlc message to be sent or received from a peer
196 #[derive(Clone, PartialEq)]
197 pub struct UpdateFailMalformedHTLC {
198 pub(crate) channel_id: [u8; 32],
199 pub(crate) htlc_id: u64,
200 pub(crate) sha256_of_onion: [u8; 32],
201 pub(crate) failure_code: u16,
204 /// A commitment_signed message to be sent or received from a peer
205 #[derive(Clone, PartialEq)]
206 pub struct CommitmentSigned {
207 pub(crate) channel_id: [u8; 32],
208 pub(crate) signature: Signature,
209 pub(crate) htlc_signatures: Vec<Signature>,
212 /// A revoke_and_ack message to be sent or received from a peer
213 #[derive(Clone, PartialEq)]
214 pub struct RevokeAndACK {
215 pub(crate) channel_id: [u8; 32],
216 pub(crate) per_commitment_secret: [u8; 32],
217 pub(crate) next_per_commitment_point: PublicKey,
220 /// An update_fee message to be sent or received from a peer
221 #[derive(PartialEq, Clone)]
222 pub struct UpdateFee {
223 pub(crate) channel_id: [u8; 32],
224 pub(crate) feerate_per_kw: u32,
227 #[derive(PartialEq, Clone)]
228 pub(crate) struct DataLossProtect {
229 pub(crate) your_last_per_commitment_secret: [u8; 32],
230 pub(crate) my_current_per_commitment_point: PublicKey,
233 /// A channel_reestablish message to be sent or received from a peer
234 #[derive(PartialEq, Clone)]
235 pub struct ChannelReestablish {
236 pub(crate) channel_id: [u8; 32],
237 pub(crate) next_local_commitment_number: u64,
238 pub(crate) next_remote_commitment_number: u64,
239 pub(crate) data_loss_protect: OptionalField<DataLossProtect>,
242 /// An announcement_signatures message to be sent or received from a peer
243 #[derive(PartialEq, Clone, Debug)]
244 pub struct AnnouncementSignatures {
245 pub(crate) channel_id: [u8; 32],
246 pub(crate) short_channel_id: u64,
247 pub(crate) node_signature: Signature,
248 pub(crate) bitcoin_signature: Signature,
251 /// An address which can be used to connect to a remote peer
252 #[derive(Clone, PartialEq, Debug)]
253 pub enum NetAddress {
254 /// An IPv4 address/port on which the peer is listening.
256 /// The 4-byte IPv4 address
258 /// The port on which the node is listening
261 /// An IPv6 address/port on which the peer is listening.
263 /// The 16-byte IPv6 address
265 /// The port on which the node is listening
268 /// An old-style Tor onion address/port on which the peer is listening.
270 /// The bytes (usually encoded in base32 with ".onion" appended)
272 /// The port on which the node is listening
275 /// A new-style Tor onion address/port on which the peer is listening.
276 /// To create the human-readable "hostname", concatenate ed25519_pubkey, checksum, and version,
277 /// wrap as base32 and append ".onion".
279 /// The ed25519 long-term public key of the peer
280 ed25519_pubkey: [u8; 32],
281 /// The checksum of the pubkey and version, as included in the onion address
283 /// The version byte, as defined by the Tor Onion v3 spec.
285 /// The port on which the node is listening
290 fn get_id(&self) -> u8 {
292 &NetAddress::IPv4 {..} => { 1 },
293 &NetAddress::IPv6 {..} => { 2 },
294 &NetAddress::OnionV2 {..} => { 3 },
295 &NetAddress::OnionV3 {..} => { 4 },
299 /// Strict byte-length of address descriptor, 1-byte type not recorded
300 fn len(&self) -> u16 {
302 &NetAddress::IPv4 { .. } => { 6 },
303 &NetAddress::IPv6 { .. } => { 18 },
304 &NetAddress::OnionV2 { .. } => { 12 },
305 &NetAddress::OnionV3 { .. } => { 37 },
309 /// The maximum length of any address descriptor, not including the 1-byte type
310 pub(crate) const MAX_LEN: u16 = 37;
313 impl Writeable for NetAddress {
314 fn write<W: Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error> {
316 &NetAddress::IPv4 { ref addr, ref port } => {
321 &NetAddress::IPv6 { ref addr, ref port } => {
326 &NetAddress::OnionV2 { ref addr, ref port } => {
331 &NetAddress::OnionV3 { ref ed25519_pubkey, ref checksum, ref version, ref port } => {
333 ed25519_pubkey.write(writer)?;
334 checksum.write(writer)?;
335 version.write(writer)?;
343 impl Readable for Result<NetAddress, u8> {
344 fn read<R: Read>(reader: &mut R) -> Result<Result<NetAddress, u8>, DecodeError> {
345 let byte = <u8 as Readable>::read(reader)?;
348 Ok(Ok(NetAddress::IPv4 {
349 addr: Readable::read(reader)?,
350 port: Readable::read(reader)?,
354 Ok(Ok(NetAddress::IPv6 {
355 addr: Readable::read(reader)?,
356 port: Readable::read(reader)?,
360 Ok(Ok(NetAddress::OnionV2 {
361 addr: Readable::read(reader)?,
362 port: Readable::read(reader)?,
366 Ok(Ok(NetAddress::OnionV3 {
367 ed25519_pubkey: Readable::read(reader)?,
368 checksum: Readable::read(reader)?,
369 version: Readable::read(reader)?,
370 port: Readable::read(reader)?,
373 _ => return Ok(Err(byte)),
378 // Only exposed as broadcast of node_announcement should be filtered by node_id
379 /// The unsigned part of a node_announcement
380 #[derive(PartialEq, Clone, Debug)]
381 pub struct UnsignedNodeAnnouncement {
382 pub(crate) features: NodeFeatures,
383 pub(crate) timestamp: u32,
384 /// The node_id this announcement originated from (don't rebroadcast the node_announcement back
386 pub node_id: PublicKey,
387 pub(crate) rgb: [u8; 3],
388 pub(crate) alias: [u8; 32],
389 /// List of addresses on which this node is reachable. Note that you may only have up to one
390 /// address of each type, if you have more, they may be silently discarded or we may panic!
391 pub(crate) addresses: Vec<NetAddress>,
392 pub(crate) excess_address_data: Vec<u8>,
393 pub(crate) excess_data: Vec<u8>,
395 #[derive(PartialEq, Clone)]
396 /// A node_announcement message to be sent or received from a peer
397 pub struct NodeAnnouncement {
398 pub(crate) signature: Signature,
399 pub(crate) contents: UnsignedNodeAnnouncement,
402 // Only exposed as broadcast of channel_announcement should be filtered by node_id
403 /// The unsigned part of a channel_announcement
404 #[derive(PartialEq, Clone, Debug)]
405 pub struct UnsignedChannelAnnouncement {
406 pub(crate) features: ChannelFeatures,
407 pub(crate) chain_hash: Sha256dHash,
408 pub(crate) short_channel_id: u64,
409 /// One of the two node_ids which are endpoints of this channel
410 pub node_id_1: PublicKey,
411 /// The other of the two node_ids which are endpoints of this channel
412 pub node_id_2: PublicKey,
413 pub(crate) bitcoin_key_1: PublicKey,
414 pub(crate) bitcoin_key_2: PublicKey,
415 pub(crate) excess_data: Vec<u8>,
417 /// A channel_announcement message to be sent or received from a peer
418 #[derive(PartialEq, Clone, Debug)]
419 pub struct ChannelAnnouncement {
420 pub(crate) node_signature_1: Signature,
421 pub(crate) node_signature_2: Signature,
422 pub(crate) bitcoin_signature_1: Signature,
423 pub(crate) bitcoin_signature_2: Signature,
424 pub(crate) contents: UnsignedChannelAnnouncement,
427 #[derive(PartialEq, Clone, Debug)]
428 pub(crate) struct UnsignedChannelUpdate {
429 pub(crate) chain_hash: Sha256dHash,
430 pub(crate) short_channel_id: u64,
431 pub(crate) timestamp: u32,
432 pub(crate) flags: u16,
433 pub(crate) cltv_expiry_delta: u16,
434 pub(crate) htlc_minimum_msat: u64,
435 pub(crate) fee_base_msat: u32,
436 pub(crate) fee_proportional_millionths: u32,
437 pub(crate) excess_data: Vec<u8>,
439 /// A channel_update message to be sent or received from a peer
440 #[derive(PartialEq, Clone, Debug)]
441 pub struct ChannelUpdate {
442 pub(crate) signature: Signature,
443 pub(crate) contents: UnsignedChannelUpdate,
446 /// Used to put an error message in a LightningError
448 pub enum ErrorAction {
449 /// The peer took some action which made us think they were useless. Disconnect them.
451 /// An error message which we should make an effort to send before we disconnect.
452 msg: Option<ErrorMessage>
454 /// The peer did something harmless that we weren't able to process, just log and ignore
456 /// The peer did something incorrect. Tell them.
458 /// The message to send.
463 /// An Err type for failure to process messages.
464 pub struct LightningError {
465 /// A human-readable message describing the error
466 pub err: &'static str,
467 /// The action which should be taken against the offending peer.
468 pub action: ErrorAction,
471 /// Struct used to return values from revoke_and_ack messages, containing a bunch of commitment
472 /// transaction updates if they were pending.
473 #[derive(PartialEq, Clone)]
474 pub struct CommitmentUpdate {
475 /// update_add_htlc messages which should be sent
476 pub update_add_htlcs: Vec<UpdateAddHTLC>,
477 /// update_fulfill_htlc messages which should be sent
478 pub update_fulfill_htlcs: Vec<UpdateFulfillHTLC>,
479 /// update_fail_htlc messages which should be sent
480 pub update_fail_htlcs: Vec<UpdateFailHTLC>,
481 /// update_fail_malformed_htlc messages which should be sent
482 pub update_fail_malformed_htlcs: Vec<UpdateFailMalformedHTLC>,
483 /// An update_fee message which should be sent
484 pub update_fee: Option<UpdateFee>,
485 /// Finally, the commitment_signed message which should be sent
486 pub commitment_signed: CommitmentSigned,
489 /// The information we received from a peer along the route of a payment we originated. This is
490 /// returned by ChannelMessageHandler::handle_update_fail_htlc to be passed into
491 /// RoutingMessageHandler::handle_htlc_fail_channel_update to update our network map.
493 pub enum HTLCFailChannelUpdate {
494 /// We received an error which included a full ChannelUpdate message.
495 ChannelUpdateMessage {
496 /// The unwrapped message we received
499 /// We received an error which indicated only that a channel has been closed
501 /// The short_channel_id which has now closed.
502 short_channel_id: u64,
503 /// when this true, this channel should be permanently removed from the
504 /// consideration. Otherwise, this channel can be restored as new channel_update is received
507 /// We received an error which indicated only that a node has failed
509 /// The node_id that has failed.
511 /// when this true, node should be permanently removed from the
512 /// consideration. Otherwise, the channels connected to this node can be
513 /// restored as new channel_update is received
518 /// Messages could have optional fields to use with extended features
519 /// As we wish to serialize these differently from Option<T>s (Options get a tag byte, but
520 /// OptionalFeild simply gets Present if there are enough bytes to read into it), we have a
521 /// separate enum type for them.
522 #[derive(Clone, PartialEq)]
523 pub enum OptionalField<T> {
524 /// Optional field is included in message
526 /// Optional field is absent in message
530 /// A trait to describe an object which can receive channel messages.
532 /// Messages MAY be called in parallel when they originate from different their_node_ids, however
533 /// they MUST NOT be called in parallel when the two calls have the same their_node_id.
534 pub trait ChannelMessageHandler : events::MessageSendEventsProvider + Send + Sync {
536 /// Handle an incoming open_channel message from the given peer.
537 fn handle_open_channel(&self, their_node_id: &PublicKey, their_features: InitFeatures, msg: &OpenChannel);
538 /// Handle an incoming accept_channel message from the given peer.
539 fn handle_accept_channel(&self, their_node_id: &PublicKey, their_features: InitFeatures, msg: &AcceptChannel);
540 /// Handle an incoming funding_created message from the given peer.
541 fn handle_funding_created(&self, their_node_id: &PublicKey, msg: &FundingCreated);
542 /// Handle an incoming funding_signed message from the given peer.
543 fn handle_funding_signed(&self, their_node_id: &PublicKey, msg: &FundingSigned);
544 /// Handle an incoming funding_locked message from the given peer.
545 fn handle_funding_locked(&self, their_node_id: &PublicKey, msg: &FundingLocked);
548 /// Handle an incoming shutdown message from the given peer.
549 fn handle_shutdown(&self, their_node_id: &PublicKey, msg: &Shutdown);
550 /// Handle an incoming closing_signed message from the given peer.
551 fn handle_closing_signed(&self, their_node_id: &PublicKey, msg: &ClosingSigned);
554 /// Handle an incoming update_add_htlc message from the given peer.
555 fn handle_update_add_htlc(&self, their_node_id: &PublicKey, msg: &UpdateAddHTLC);
556 /// Handle an incoming update_fulfill_htlc message from the given peer.
557 fn handle_update_fulfill_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFulfillHTLC);
558 /// Handle an incoming update_fail_htlc message from the given peer.
559 fn handle_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFailHTLC);
560 /// Handle an incoming update_fail_malformed_htlc message from the given peer.
561 fn handle_update_fail_malformed_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFailMalformedHTLC);
562 /// Handle an incoming commitment_signed message from the given peer.
563 fn handle_commitment_signed(&self, their_node_id: &PublicKey, msg: &CommitmentSigned);
564 /// Handle an incoming revoke_and_ack message from the given peer.
565 fn handle_revoke_and_ack(&self, their_node_id: &PublicKey, msg: &RevokeAndACK);
567 /// Handle an incoming update_fee message from the given peer.
568 fn handle_update_fee(&self, their_node_id: &PublicKey, msg: &UpdateFee);
570 // Channel-to-announce:
571 /// Handle an incoming announcement_signatures message from the given peer.
572 fn handle_announcement_signatures(&self, their_node_id: &PublicKey, msg: &AnnouncementSignatures);
574 // Connection loss/reestablish:
575 /// Indicates a connection to the peer failed/an existing connection was lost. If no connection
576 /// is believed to be possible in the future (eg they're sending us messages we don't
577 /// understand or indicate they require unknown feature bits), no_connection_possible is set
578 /// and any outstanding channels should be failed.
579 fn peer_disconnected(&self, their_node_id: &PublicKey, no_connection_possible: bool);
581 /// Handle a peer reconnecting, possibly generating channel_reestablish message(s).
582 fn peer_connected(&self, their_node_id: &PublicKey, msg: &Init);
583 /// Handle an incoming channel_reestablish message from the given peer.
584 fn handle_channel_reestablish(&self, their_node_id: &PublicKey, msg: &ChannelReestablish);
587 /// Handle an incoming error message from the given peer.
588 fn handle_error(&self, their_node_id: &PublicKey, msg: &ErrorMessage);
591 /// A trait to describe an object which can receive routing messages.
592 pub trait RoutingMessageHandler : Send + Sync {
593 /// Handle an incoming node_announcement message, returning true if it should be forwarded on,
594 /// false or returning an Err otherwise.
595 fn handle_node_announcement(&self, msg: &NodeAnnouncement) -> Result<bool, LightningError>;
596 /// Handle a channel_announcement message, returning true if it should be forwarded on, false
597 /// or returning an Err otherwise.
598 fn handle_channel_announcement(&self, msg: &ChannelAnnouncement) -> Result<bool, LightningError>;
599 /// Handle an incoming channel_update message, returning true if it should be forwarded on,
600 /// false or returning an Err otherwise.
601 fn handle_channel_update(&self, msg: &ChannelUpdate) -> Result<bool, LightningError>;
602 /// Handle some updates to the route graph that we learned due to an outbound failed payment.
603 fn handle_htlc_fail_channel_update(&self, update: &HTLCFailChannelUpdate);
604 /// Gets a subset of the channel announcements and updates required to dump our routing table
605 /// to a remote node, starting at the short_channel_id indicated by starting_point and
606 /// including the batch_amount entries immediately higher in numerical value than starting_point.
607 fn get_next_channel_announcements(&self, starting_point: u64, batch_amount: u8) -> Vec<(ChannelAnnouncement, Option<ChannelUpdate>, Option<ChannelUpdate>)>;
608 /// Gets a subset of the node announcements required to dump our routing table to a remote node,
609 /// starting at the node *after* the provided publickey and including batch_amount entries
610 /// immediately higher (as defined by <PublicKey as Ord>::cmp) than starting_point.
611 /// If None is provided for starting_point, we start at the first node.
612 fn get_next_node_announcements(&self, starting_point: Option<&PublicKey>, batch_amount: u8) -> Vec<NodeAnnouncement>;
613 /// Returns whether a full sync should be requested from a peer.
614 fn should_request_full_sync(&self, node_id: &PublicKey) -> bool;
617 mod fuzzy_internal_msgs {
618 use ln::channelmanager::PaymentSecret;
620 // These types aren't intended to be pub, but are exposed for direct fuzzing (as we deserialize
621 // them from untrusted input):
623 pub(crate) struct FinalOnionHopData {
624 pub(crate) payment_secret: PaymentSecret,
625 pub(crate) total_msat: u64,
628 pub(crate) enum OnionHopDataFormat {
629 Legacy { // aka Realm-0
630 short_channel_id: u64,
633 short_channel_id: u64,
636 payment_data: Option<FinalOnionHopData>,
640 pub struct OnionHopData {
641 pub(crate) format: OnionHopDataFormat,
642 pub(crate) amt_to_forward: u64,
643 pub(crate) outgoing_cltv_value: u32,
644 // 12 bytes of 0-padding for Legacy format
647 pub struct DecodedOnionErrorPacket {
648 pub(crate) hmac: [u8; 32],
649 pub(crate) failuremsg: Vec<u8>,
650 pub(crate) pad: Vec<u8>,
653 #[cfg(feature = "fuzztarget")]
654 pub use self::fuzzy_internal_msgs::*;
655 #[cfg(not(feature = "fuzztarget"))]
656 pub(crate) use self::fuzzy_internal_msgs::*;
659 pub(crate) struct OnionPacket {
660 pub(crate) version: u8,
661 /// In order to ensure we always return an error on Onion decode in compliance with BOLT 4, we
662 /// have to deserialize OnionPackets contained in UpdateAddHTLCs even if the ephemeral public
663 /// key (here) is bogus, so we hold a Result instead of a PublicKey as we'd like.
664 pub(crate) public_key: Result<PublicKey, secp256k1::Error>,
665 pub(crate) hop_data: [u8; 20*65],
666 pub(crate) hmac: [u8; 32],
669 impl PartialEq for OnionPacket {
670 fn eq(&self, other: &OnionPacket) -> bool {
671 for (i, j) in self.hop_data.iter().zip(other.hop_data.iter()) {
672 if i != j { return false; }
674 self.version == other.version &&
675 self.public_key == other.public_key &&
676 self.hmac == other.hmac
680 #[derive(Clone, PartialEq)]
681 pub(crate) struct OnionErrorPacket {
682 // This really should be a constant size slice, but the spec lets these things be up to 128KB?
683 // (TODO) We limit it in decode to much lower...
684 pub(crate) data: Vec<u8>,
687 impl Error for DecodeError {
688 fn description(&self) -> &str {
690 DecodeError::UnknownVersion => "Unknown realm byte in Onion packet",
691 DecodeError::UnknownRequiredFeature => "Unknown required feature preventing decode",
692 DecodeError::InvalidValue => "Nonsense bytes didn't map to the type they were interpreted as",
693 DecodeError::ShortRead => "Packet extended beyond the provided bytes",
694 DecodeError::BadLengthDescriptor => "A length descriptor in the packet didn't describe the later data correctly",
695 DecodeError::Io(ref e) => e.description(),
699 impl fmt::Display for DecodeError {
700 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
701 f.write_str(self.description())
705 impl fmt::Debug for LightningError {
706 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
707 f.write_str(self.err)
711 impl From<::std::io::Error> for DecodeError {
712 fn from(e: ::std::io::Error) -> Self {
713 if e.kind() == ::std::io::ErrorKind::UnexpectedEof {
714 DecodeError::ShortRead
721 impl Writeable for OptionalField<Script> {
722 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
724 OptionalField::Present(ref script) => {
725 // Note that Writeable for script includes the 16-bit length tag for us
728 OptionalField::Absent => {}
734 impl Readable for OptionalField<Script> {
735 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
736 match <u16 as Readable>::read(r) {
738 let mut buf = vec![0; len as usize];
739 r.read_exact(&mut buf)?;
740 Ok(OptionalField::Present(Script::from(buf)))
742 Err(DecodeError::ShortRead) => Ok(OptionalField::Absent),
748 impl_writeable_len_match!(AcceptChannel, {
749 {AcceptChannel{ shutdown_scriptpubkey: OptionalField::Present(ref script), .. }, 270 + 2 + script.len()},
752 temporary_channel_id,
754 max_htlc_value_in_flight_msat,
755 channel_reserve_satoshis,
761 revocation_basepoint,
763 delayed_payment_basepoint,
765 first_per_commitment_point,
766 shutdown_scriptpubkey
769 impl_writeable!(AnnouncementSignatures, 32+8+64*2, {
776 impl Writeable for ChannelReestablish {
777 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
778 w.size_hint(if let OptionalField::Present(..) = self.data_loss_protect { 32+2*8+33+32 } else { 32+2*8 });
779 self.channel_id.write(w)?;
780 self.next_local_commitment_number.write(w)?;
781 self.next_remote_commitment_number.write(w)?;
782 match self.data_loss_protect {
783 OptionalField::Present(ref data_loss_protect) => {
784 (*data_loss_protect).your_last_per_commitment_secret.write(w)?;
785 (*data_loss_protect).my_current_per_commitment_point.write(w)?;
787 OptionalField::Absent => {}
793 impl Readable for ChannelReestablish{
794 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
796 channel_id: Readable::read(r)?,
797 next_local_commitment_number: Readable::read(r)?,
798 next_remote_commitment_number: Readable::read(r)?,
800 match <[u8; 32] as Readable>::read(r) {
801 Ok(your_last_per_commitment_secret) =>
802 OptionalField::Present(DataLossProtect {
803 your_last_per_commitment_secret,
804 my_current_per_commitment_point: Readable::read(r)?,
806 Err(DecodeError::ShortRead) => OptionalField::Absent,
807 Err(e) => return Err(e)
814 impl_writeable!(ClosingSigned, 32+8+64, {
820 impl_writeable_len_match!(CommitmentSigned, {
821 { CommitmentSigned { ref htlc_signatures, .. }, 32+64+2+htlc_signatures.len()*64 }
828 impl_writeable_len_match!(DecodedOnionErrorPacket, {
829 { DecodedOnionErrorPacket { ref failuremsg, ref pad, .. }, 32 + 4 + failuremsg.len() + pad.len() }
836 impl_writeable!(FundingCreated, 32+32+2+64, {
837 temporary_channel_id,
839 funding_output_index,
843 impl_writeable!(FundingSigned, 32+64, {
848 impl_writeable!(FundingLocked, 32+33, {
850 next_per_commitment_point
853 impl Writeable for Init {
854 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
855 // global_features gets the bottom 13 bits of our features, and local_features gets all of
856 // our relevant feature bits. This keeps us compatible with old nodes.
857 self.features.write_up_to_13(w)?;
858 self.features.write(w)
862 impl Readable for Init {
863 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
864 let global_features: InitFeatures = Readable::read(r)?;
865 let features: InitFeatures = Readable::read(r)?;
867 features: features.or(global_features),
872 impl_writeable_len_match!(OpenChannel, {
873 { OpenChannel { shutdown_scriptpubkey: OptionalField::Present(ref script), .. }, 319 + 2 + script.len() },
877 temporary_channel_id,
881 max_htlc_value_in_flight_msat,
882 channel_reserve_satoshis,
888 revocation_basepoint,
890 delayed_payment_basepoint,
892 first_per_commitment_point,
894 shutdown_scriptpubkey
897 impl_writeable!(RevokeAndACK, 32+32+33, {
899 per_commitment_secret,
900 next_per_commitment_point
903 impl_writeable_len_match!(Shutdown, {
904 { Shutdown { ref scriptpubkey, .. }, 32 + 2 + scriptpubkey.len() }
910 impl_writeable_len_match!(UpdateFailHTLC, {
911 { UpdateFailHTLC { ref reason, .. }, 32 + 10 + reason.data.len() }
918 impl_writeable!(UpdateFailMalformedHTLC, 32+8+32+2, {
925 impl_writeable!(UpdateFee, 32+4, {
930 impl_writeable!(UpdateFulfillHTLC, 32+8+32, {
936 impl_writeable_len_match!(OnionErrorPacket, {
937 { OnionErrorPacket { ref data, .. }, 2 + data.len() }
942 impl Writeable for OnionPacket {
943 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
944 w.size_hint(1 + 33 + 20*65 + 32);
945 self.version.write(w)?;
946 match self.public_key {
947 Ok(pubkey) => pubkey.write(w)?,
948 Err(_) => [0u8;33].write(w)?,
950 w.write_all(&self.hop_data)?;
956 impl Readable for OnionPacket {
957 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
959 version: Readable::read(r)?,
961 let mut buf = [0u8;33];
962 r.read_exact(&mut buf)?;
963 PublicKey::from_slice(&buf)
965 hop_data: Readable::read(r)?,
966 hmac: Readable::read(r)?,
971 impl_writeable!(UpdateAddHTLC, 32+8+8+32+4+1366, {
980 impl Writeable for FinalOnionHopData {
981 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
982 w.size_hint(32 + 8 - (self.total_msat.leading_zeros()/8) as usize);
983 self.payment_secret.0.write(w)?;
984 HighZeroBytesDroppedVarInt(self.total_msat).write(w)
988 impl Readable for FinalOnionHopData {
989 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
990 let secret: [u8; 32] = Readable::read(r)?;
991 let amt: HighZeroBytesDroppedVarInt<u64> = Readable::read(r)?;
992 Ok(Self { payment_secret: PaymentSecret(secret), total_msat: amt.0 })
996 impl Writeable for OnionHopData {
997 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1000 OnionHopDataFormat::Legacy { short_channel_id } => {
1002 short_channel_id.write(w)?;
1003 self.amt_to_forward.write(w)?;
1004 self.outgoing_cltv_value.write(w)?;
1005 w.write_all(&[0;12])?;
1007 OnionHopDataFormat::NonFinalNode { short_channel_id } => {
1008 encode_varint_length_prefixed_tlv!(w, {
1009 (2, HighZeroBytesDroppedVarInt(self.amt_to_forward)),
1010 (4, HighZeroBytesDroppedVarInt(self.outgoing_cltv_value)),
1011 (6, short_channel_id)
1014 OnionHopDataFormat::FinalNode { payment_data: Some(ref final_data) } => {
1015 encode_varint_length_prefixed_tlv!(w, {
1016 (2, HighZeroBytesDroppedVarInt(self.amt_to_forward)),
1017 (4, HighZeroBytesDroppedVarInt(self.outgoing_cltv_value)),
1021 OnionHopDataFormat::FinalNode { payment_data: None } => {
1022 encode_varint_length_prefixed_tlv!(w, {
1023 (2, HighZeroBytesDroppedVarInt(self.amt_to_forward)),
1024 (4, HighZeroBytesDroppedVarInt(self.outgoing_cltv_value))
1032 impl Readable for OnionHopData {
1033 fn read<R: Read>(mut r: &mut R) -> Result<Self, DecodeError> {
1034 use bitcoin::consensus::encode::{Decodable, Error, VarInt};
1035 let v: VarInt = Decodable::consensus_decode(&mut r)
1036 .map_err(|e| match e {
1037 Error::Io(ioe) => DecodeError::from(ioe),
1038 _ => DecodeError::InvalidValue
1040 const LEGACY_ONION_HOP_FLAG: u64 = 0;
1041 let (format, amt, cltv_value) = if v.0 != LEGACY_ONION_HOP_FLAG {
1042 let mut rd = FixedLengthReader::new(r, v.0);
1043 let mut amt = HighZeroBytesDroppedVarInt(0u64);
1044 let mut cltv_value = HighZeroBytesDroppedVarInt(0u32);
1045 let mut short_id: Option<u64> = None;
1046 let mut payment_data: Option<FinalOnionHopData> = None;
1047 decode_tlv!(&mut rd, {
1054 rd.eat_remaining().map_err(|_| DecodeError::ShortRead)?;
1055 let format = if let Some(short_channel_id) = short_id {
1056 if payment_data.is_some() { return Err(DecodeError::InvalidValue); }
1057 OnionHopDataFormat::NonFinalNode {
1061 if let &Some(ref data) = &payment_data {
1062 if data.total_msat > MAX_VALUE_MSAT {
1063 return Err(DecodeError::InvalidValue);
1066 OnionHopDataFormat::FinalNode {
1070 (format, amt.0, cltv_value.0)
1072 let format = OnionHopDataFormat::Legacy {
1073 short_channel_id: Readable::read(r)?,
1075 let amt: u64 = Readable::read(r)?;
1076 let cltv_value: u32 = Readable::read(r)?;
1077 r.read_exact(&mut [0; 12])?;
1078 (format, amt, cltv_value)
1081 if amt > MAX_VALUE_MSAT {
1082 return Err(DecodeError::InvalidValue);
1086 amt_to_forward: amt,
1087 outgoing_cltv_value: cltv_value,
1092 impl Writeable for Ping {
1093 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1094 w.size_hint(self.byteslen as usize + 4);
1095 self.ponglen.write(w)?;
1096 vec![0u8; self.byteslen as usize].write(w)?; // size-unchecked write
1101 impl Readable for Ping {
1102 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
1104 ponglen: Readable::read(r)?,
1106 let byteslen = Readable::read(r)?;
1107 r.read_exact(&mut vec![0u8; byteslen as usize][..])?;
1114 impl Writeable for Pong {
1115 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1116 w.size_hint(self.byteslen as usize + 2);
1117 vec![0u8; self.byteslen as usize].write(w)?; // size-unchecked write
1122 impl Readable for Pong {
1123 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
1126 let byteslen = Readable::read(r)?;
1127 r.read_exact(&mut vec![0u8; byteslen as usize][..])?;
1134 impl Writeable for UnsignedChannelAnnouncement {
1135 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1136 w.size_hint(2 + 2*32 + 4*33 + self.features.byte_count() + self.excess_data.len());
1137 self.features.write(w)?;
1138 self.chain_hash.write(w)?;
1139 self.short_channel_id.write(w)?;
1140 self.node_id_1.write(w)?;
1141 self.node_id_2.write(w)?;
1142 self.bitcoin_key_1.write(w)?;
1143 self.bitcoin_key_2.write(w)?;
1144 w.write_all(&self.excess_data[..])?;
1149 impl Readable for UnsignedChannelAnnouncement {
1150 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
1152 features: Readable::read(r)?,
1153 chain_hash: Readable::read(r)?,
1154 short_channel_id: Readable::read(r)?,
1155 node_id_1: Readable::read(r)?,
1156 node_id_2: Readable::read(r)?,
1157 bitcoin_key_1: Readable::read(r)?,
1158 bitcoin_key_2: Readable::read(r)?,
1160 let mut excess_data = vec![];
1161 r.read_to_end(&mut excess_data)?;
1168 impl_writeable_len_match!(ChannelAnnouncement, {
1169 { ChannelAnnouncement { contents: UnsignedChannelAnnouncement {ref features, ref excess_data, ..}, .. },
1170 2 + 2*32 + 4*33 + features.byte_count() + excess_data.len() + 4*64 }
1174 bitcoin_signature_1,
1175 bitcoin_signature_2,
1179 impl Writeable for UnsignedChannelUpdate {
1180 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1181 w.size_hint(64 + self.excess_data.len());
1182 self.chain_hash.write(w)?;
1183 self.short_channel_id.write(w)?;
1184 self.timestamp.write(w)?;
1185 self.flags.write(w)?;
1186 self.cltv_expiry_delta.write(w)?;
1187 self.htlc_minimum_msat.write(w)?;
1188 self.fee_base_msat.write(w)?;
1189 self.fee_proportional_millionths.write(w)?;
1190 w.write_all(&self.excess_data[..])?;
1195 impl Readable for UnsignedChannelUpdate {
1196 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
1198 chain_hash: Readable::read(r)?,
1199 short_channel_id: Readable::read(r)?,
1200 timestamp: Readable::read(r)?,
1201 flags: Readable::read(r)?,
1202 cltv_expiry_delta: Readable::read(r)?,
1203 htlc_minimum_msat: Readable::read(r)?,
1204 fee_base_msat: Readable::read(r)?,
1205 fee_proportional_millionths: Readable::read(r)?,
1207 let mut excess_data = vec![];
1208 r.read_to_end(&mut excess_data)?;
1215 impl_writeable_len_match!(ChannelUpdate, {
1216 { ChannelUpdate { contents: UnsignedChannelUpdate {ref excess_data, ..}, .. },
1217 64 + excess_data.len() + 64 }
1223 impl Writeable for ErrorMessage {
1224 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1225 w.size_hint(32 + 2 + self.data.len());
1226 self.channel_id.write(w)?;
1227 (self.data.len() as u16).write(w)?;
1228 w.write_all(self.data.as_bytes())?;
1233 impl Readable for ErrorMessage {
1234 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
1236 channel_id: Readable::read(r)?,
1238 let mut sz: usize = <u16 as Readable>::read(r)? as usize;
1239 let mut data = vec![];
1240 let data_len = r.read_to_end(&mut data)?;
1241 sz = cmp::min(data_len, sz);
1242 match String::from_utf8(data[..sz as usize].to_vec()) {
1244 Err(_) => return Err(DecodeError::InvalidValue),
1251 impl Writeable for UnsignedNodeAnnouncement {
1252 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
1253 w.size_hint(64 + 76 + self.features.byte_count() + self.addresses.len()*38 + self.excess_address_data.len() + self.excess_data.len());
1254 self.features.write(w)?;
1255 self.timestamp.write(w)?;
1256 self.node_id.write(w)?;
1257 w.write_all(&self.rgb)?;
1258 self.alias.write(w)?;
1260 let mut addrs_to_encode = self.addresses.clone();
1261 addrs_to_encode.sort_by(|a, b| { a.get_id().cmp(&b.get_id()) });
1262 let mut addr_len = 0;
1263 for addr in &addrs_to_encode {
1264 addr_len += 1 + addr.len();
1266 (addr_len + self.excess_address_data.len() as u16).write(w)?;
1267 for addr in addrs_to_encode {
1270 w.write_all(&self.excess_address_data[..])?;
1271 w.write_all(&self.excess_data[..])?;
1276 impl Readable for UnsignedNodeAnnouncement {
1277 fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
1278 let features: NodeFeatures = Readable::read(r)?;
1279 let timestamp: u32 = Readable::read(r)?;
1280 let node_id: PublicKey = Readable::read(r)?;
1281 let mut rgb = [0; 3];
1282 r.read_exact(&mut rgb)?;
1283 let alias: [u8; 32] = Readable::read(r)?;
1285 let addr_len: u16 = Readable::read(r)?;
1286 let mut addresses: Vec<NetAddress> = Vec::new();
1287 let mut highest_addr_type = 0;
1288 let mut addr_readpos = 0;
1289 let mut excess = false;
1290 let mut excess_byte = 0;
1292 if addr_len <= addr_readpos { break; }
1293 match Readable::read(r) {
1295 if addr.get_id() < highest_addr_type {
1296 // Addresses must be sorted in increasing order
1297 return Err(DecodeError::InvalidValue);
1299 highest_addr_type = addr.get_id();
1300 if addr_len < addr_readpos + 1 + addr.len() {
1301 return Err(DecodeError::BadLengthDescriptor);
1303 addr_readpos += (1 + addr.len()) as u16;
1304 addresses.push(addr);
1306 Ok(Err(unknown_descriptor)) => {
1308 excess_byte = unknown_descriptor;
1311 Err(DecodeError::ShortRead) => return Err(DecodeError::BadLengthDescriptor),
1312 Err(e) => return Err(e),
1316 let mut excess_data = vec![];
1317 let excess_address_data = if addr_readpos < addr_len {
1318 let mut excess_address_data = vec![0; (addr_len - addr_readpos) as usize];
1319 r.read_exact(&mut excess_address_data[if excess { 1 } else { 0 }..])?;
1321 excess_address_data[0] = excess_byte;
1326 excess_data.push(excess_byte);
1330 r.read_to_end(&mut excess_data)?;
1331 Ok(UnsignedNodeAnnouncement {
1338 excess_address_data,
1344 impl_writeable_len_match!(NodeAnnouncement, {
1345 { NodeAnnouncement { contents: UnsignedNodeAnnouncement { ref features, ref addresses, ref excess_address_data, ref excess_data, ..}, .. },
1346 64 + 76 + features.byte_count() + addresses.len()*(NetAddress::MAX_LEN as usize + 1) + excess_address_data.len() + excess_data.len() }
1356 use ln::msgs::{ChannelFeatures, FinalOnionHopData, InitFeatures, NodeFeatures, OptionalField, OnionErrorPacket, OnionHopDataFormat};
1357 use ln::channelmanager::{PaymentPreimage, PaymentHash, PaymentSecret};
1358 use util::ser::{Writeable, Readable};
1360 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
1361 use bitcoin_hashes::hex::FromHex;
1362 use bitcoin::util::address::Address;
1363 use bitcoin::network::constants::Network;
1364 use bitcoin::blockdata::script::Builder;
1365 use bitcoin::blockdata::opcodes;
1367 use secp256k1::key::{PublicKey,SecretKey};
1368 use secp256k1::{Secp256k1, Message};
1370 use std::io::Cursor;
1373 fn encoding_channel_reestablish_no_secret() {
1374 let cr = msgs::ChannelReestablish {
1375 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],
1376 next_local_commitment_number: 3,
1377 next_remote_commitment_number: 4,
1378 data_loss_protect: OptionalField::Absent,
1381 let encoded_value = cr.encode();
1384 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]
1389 fn encoding_channel_reestablish_with_secret() {
1391 let secp_ctx = Secp256k1::new();
1392 PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&hex::decode("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap())
1395 let cr = msgs::ChannelReestablish {
1396 channel_id: [4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0],
1397 next_local_commitment_number: 3,
1398 next_remote_commitment_number: 4,
1399 data_loss_protect: OptionalField::Present(msgs::DataLossProtect { your_last_per_commitment_secret: [9;32], my_current_per_commitment_point: public_key}),
1402 let encoded_value = cr.encode();
1405 vec![4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 4, 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]
1409 macro_rules! get_keys_from {
1410 ($slice: expr, $secp_ctx: expr) => {
1412 let privkey = SecretKey::from_slice(&hex::decode($slice).unwrap()[..]).unwrap();
1413 let pubkey = PublicKey::from_secret_key(&$secp_ctx, &privkey);
1419 macro_rules! get_sig_on {
1420 ($privkey: expr, $ctx: expr, $string: expr) => {
1422 let sighash = Message::from_slice(&$string.into_bytes()[..]).unwrap();
1423 $ctx.sign(&sighash, &$privkey)
1429 fn encoding_announcement_signatures() {
1430 let secp_ctx = Secp256k1::new();
1431 let (privkey, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1432 let sig_1 = get_sig_on!(privkey, secp_ctx, String::from("01010101010101010101010101010101"));
1433 let sig_2 = get_sig_on!(privkey, secp_ctx, String::from("02020202020202020202020202020202"));
1434 let announcement_signatures = msgs::AnnouncementSignatures {
1435 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],
1436 short_channel_id: 2316138423780173,
1437 node_signature: sig_1,
1438 bitcoin_signature: sig_2,
1441 let encoded_value = announcement_signatures.encode();
1442 assert_eq!(encoded_value, hex::decode("040000000000000005000000000000000600000000000000070000000000000000083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073acf9953cef4700860f5967838eba2bae89288ad188ebf8b20bf995c3ea53a26df1876d0a3a0e13172ba286a673140190c02ba9da60a2e43a745188c8a83c7f3ef").unwrap());
1445 fn do_encoding_channel_announcement(unknown_features_bits: bool, non_bitcoin_chain_hash: bool, excess_data: bool) {
1446 let secp_ctx = Secp256k1::new();
1447 let (privkey_1, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1448 let (privkey_2, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1449 let (privkey_3, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1450 let (privkey_4, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1451 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1452 let sig_2 = get_sig_on!(privkey_2, secp_ctx, String::from("01010101010101010101010101010101"));
1453 let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
1454 let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
1455 let mut features = ChannelFeatures::supported();
1456 if unknown_features_bits {
1457 features = ChannelFeatures::from_le_bytes(vec![0xFF, 0xFF]);
1459 let unsigned_channel_announcement = msgs::UnsignedChannelAnnouncement {
1461 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1462 short_channel_id: 2316138423780173,
1463 node_id_1: pubkey_1,
1464 node_id_2: pubkey_2,
1465 bitcoin_key_1: pubkey_3,
1466 bitcoin_key_2: pubkey_4,
1467 excess_data: if excess_data { vec![10, 0, 0, 20, 0, 0, 30, 0, 0, 40] } else { Vec::new() },
1469 let channel_announcement = msgs::ChannelAnnouncement {
1470 node_signature_1: sig_1,
1471 node_signature_2: sig_2,
1472 bitcoin_signature_1: sig_3,
1473 bitcoin_signature_2: sig_4,
1474 contents: unsigned_channel_announcement,
1476 let encoded_value = channel_announcement.encode();
1477 let mut target_value = hex::decode("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").unwrap();
1478 if unknown_features_bits {
1479 target_value.append(&mut hex::decode("0002ffff").unwrap());
1481 target_value.append(&mut hex::decode("0000").unwrap());
1483 if non_bitcoin_chain_hash {
1484 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1486 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1488 target_value.append(&mut hex::decode("00083a840000034d031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f024d4b6cd1361032ca9bd2aeb9d900aa4d45d9ead80ac9423374c451a7254d076602531fe6068134503d2723133227c867ac8fa6c83c537e9a44c3c5bdbdcb1fe33703462779ad4aad39514614751a71085f2f10e1c7a593e4e030efb5b8721ce55b0b").unwrap());
1490 target_value.append(&mut hex::decode("0a00001400001e000028").unwrap());
1492 assert_eq!(encoded_value, target_value);
1496 fn encoding_channel_announcement() {
1497 do_encoding_channel_announcement(false, false, false);
1498 do_encoding_channel_announcement(true, false, false);
1499 do_encoding_channel_announcement(true, true, false);
1500 do_encoding_channel_announcement(true, true, true);
1501 do_encoding_channel_announcement(false, true, true);
1502 do_encoding_channel_announcement(false, false, true);
1503 do_encoding_channel_announcement(false, true, false);
1504 do_encoding_channel_announcement(true, false, true);
1507 fn do_encoding_node_announcement(unknown_features_bits: bool, ipv4: bool, ipv6: bool, onionv2: bool, onionv3: bool, excess_address_data: bool, excess_data: bool) {
1508 let secp_ctx = Secp256k1::new();
1509 let (privkey_1, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1510 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1511 let features = if unknown_features_bits {
1512 NodeFeatures::from_le_bytes(vec![0xFF, 0xFF])
1514 // Set to some features we may support
1515 NodeFeatures::from_le_bytes(vec![2 | 1 << 5])
1517 let mut addresses = Vec::new();
1519 addresses.push(msgs::NetAddress::IPv4 {
1520 addr: [255, 254, 253, 252],
1525 addresses.push(msgs::NetAddress::IPv6 {
1526 addr: [255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 245, 244, 243, 242, 241, 240],
1531 addresses.push(msgs::NetAddress::OnionV2 {
1532 addr: [255, 254, 253, 252, 251, 250, 249, 248, 247, 246],
1537 addresses.push(msgs::NetAddress::OnionV3 {
1538 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],
1544 let mut addr_len = 0;
1545 for addr in &addresses {
1546 addr_len += addr.len() + 1;
1548 let unsigned_node_announcement = msgs::UnsignedNodeAnnouncement {
1550 timestamp: 20190119,
1555 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() },
1556 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() },
1558 addr_len += unsigned_node_announcement.excess_address_data.len() as u16;
1559 let node_announcement = msgs::NodeAnnouncement {
1561 contents: unsigned_node_announcement,
1563 let encoded_value = node_announcement.encode();
1564 let mut target_value = hex::decode("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1565 if unknown_features_bits {
1566 target_value.append(&mut hex::decode("0002ffff").unwrap());
1568 target_value.append(&mut hex::decode("000122").unwrap());
1570 target_value.append(&mut hex::decode("013413a7031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f2020201010101010101010101010101010101010101010101010101010101010101010").unwrap());
1571 target_value.append(&mut vec![(addr_len >> 8) as u8, addr_len as u8]);
1573 target_value.append(&mut hex::decode("01fffefdfc2607").unwrap());
1576 target_value.append(&mut hex::decode("02fffefdfcfbfaf9f8f7f6f5f4f3f2f1f02607").unwrap());
1579 target_value.append(&mut hex::decode("03fffefdfcfbfaf9f8f7f62607").unwrap());
1582 target_value.append(&mut hex::decode("04fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0efeeedecebeae9e8e7e6e5e4e3e2e1e00020102607").unwrap());
1584 if excess_address_data {
1585 target_value.append(&mut hex::decode("216c280b5395a2546e7e4b2663e04f811622f15a4f92e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d269").unwrap());
1588 target_value.append(&mut hex::decode("3b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
1590 assert_eq!(encoded_value, target_value);
1594 fn encoding_node_announcement() {
1595 do_encoding_node_announcement(true, true, true, true, true, true, true);
1596 do_encoding_node_announcement(false, false, false, false, false, false, false);
1597 do_encoding_node_announcement(false, true, false, false, false, false, false);
1598 do_encoding_node_announcement(false, false, true, false, false, false, false);
1599 do_encoding_node_announcement(false, false, false, true, false, false, false);
1600 do_encoding_node_announcement(false, false, false, false, true, false, false);
1601 do_encoding_node_announcement(false, false, false, false, false, true, false);
1602 do_encoding_node_announcement(false, true, false, true, false, true, false);
1603 do_encoding_node_announcement(false, false, true, false, true, false, false);
1606 fn do_encoding_channel_update(non_bitcoin_chain_hash: bool, direction: bool, disable: bool, htlc_maximum_msat: bool) {
1607 let secp_ctx = Secp256k1::new();
1608 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1609 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1610 let unsigned_channel_update = msgs::UnsignedChannelUpdate {
1611 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1612 short_channel_id: 2316138423780173,
1613 timestamp: 20190119,
1614 flags: if direction { 1 } else { 0 } | if disable { 1 << 1 } else { 0 } | if htlc_maximum_msat { 1 << 8 } else { 0 },
1615 cltv_expiry_delta: 144,
1616 htlc_minimum_msat: 1000000,
1617 fee_base_msat: 10000,
1618 fee_proportional_millionths: 20,
1619 excess_data: if htlc_maximum_msat { vec![0, 0, 0, 0, 59, 154, 202, 0] } else { Vec::new() }
1621 let channel_update = msgs::ChannelUpdate {
1623 contents: unsigned_channel_update
1625 let encoded_value = channel_update.encode();
1626 let mut target_value = hex::decode("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1627 if non_bitcoin_chain_hash {
1628 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1630 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1632 target_value.append(&mut hex::decode("00083a840000034d013413a7").unwrap());
1633 if htlc_maximum_msat {
1634 target_value.append(&mut hex::decode("01").unwrap());
1636 target_value.append(&mut hex::decode("00").unwrap());
1638 target_value.append(&mut hex::decode("00").unwrap());
1640 let flag = target_value.last_mut().unwrap();
1644 let flag = target_value.last_mut().unwrap();
1645 *flag = *flag | 1 << 1;
1647 target_value.append(&mut hex::decode("009000000000000f42400000271000000014").unwrap());
1648 if htlc_maximum_msat {
1649 target_value.append(&mut hex::decode("000000003b9aca00").unwrap());
1651 assert_eq!(encoded_value, target_value);
1655 fn encoding_channel_update() {
1656 do_encoding_channel_update(false, false, false, false);
1657 do_encoding_channel_update(true, false, false, false);
1658 do_encoding_channel_update(false, true, false, false);
1659 do_encoding_channel_update(false, false, true, false);
1660 do_encoding_channel_update(false, false, false, true);
1661 do_encoding_channel_update(true, true, true, true);
1664 fn do_encoding_open_channel(non_bitcoin_chain_hash: bool, random_bit: bool, shutdown: bool) {
1665 let secp_ctx = Secp256k1::new();
1666 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1667 let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1668 let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1669 let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1670 let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
1671 let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
1672 let open_channel = msgs::OpenChannel {
1673 chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1674 temporary_channel_id: [2; 32],
1675 funding_satoshis: 1311768467284833366,
1676 push_msat: 2536655962884945560,
1677 dust_limit_satoshis: 3608586615801332854,
1678 max_htlc_value_in_flight_msat: 8517154655701053848,
1679 channel_reserve_satoshis: 8665828695742877976,
1680 htlc_minimum_msat: 2316138423780173,
1681 feerate_per_kw: 821716,
1682 to_self_delay: 49340,
1683 max_accepted_htlcs: 49340,
1684 funding_pubkey: pubkey_1,
1685 revocation_basepoint: pubkey_2,
1686 payment_basepoint: pubkey_3,
1687 delayed_payment_basepoint: pubkey_4,
1688 htlc_basepoint: pubkey_5,
1689 first_per_commitment_point: pubkey_6,
1690 channel_flags: if random_bit { 1 << 5 } else { 0 },
1691 shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: pubkey_1}, Network::Testnet).script_pubkey()) } else { OptionalField::Absent }
1693 let encoded_value = open_channel.encode();
1694 let mut target_value = Vec::new();
1695 if non_bitcoin_chain_hash {
1696 target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1698 target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1700 target_value.append(&mut hex::decode("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").unwrap());
1702 target_value.append(&mut hex::decode("20").unwrap());
1704 target_value.append(&mut hex::decode("00").unwrap());
1707 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1709 assert_eq!(encoded_value, target_value);
1713 fn encoding_open_channel() {
1714 do_encoding_open_channel(false, false, false);
1715 do_encoding_open_channel(true, false, false);
1716 do_encoding_open_channel(false, true, false);
1717 do_encoding_open_channel(false, false, true);
1718 do_encoding_open_channel(true, true, true);
1721 fn do_encoding_accept_channel(shutdown: bool) {
1722 let secp_ctx = Secp256k1::new();
1723 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1724 let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1725 let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1726 let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1727 let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
1728 let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
1729 let accept_channel = msgs::AcceptChannel {
1730 temporary_channel_id: [2; 32],
1731 dust_limit_satoshis: 1311768467284833366,
1732 max_htlc_value_in_flight_msat: 2536655962884945560,
1733 channel_reserve_satoshis: 3608586615801332854,
1734 htlc_minimum_msat: 2316138423780173,
1735 minimum_depth: 821716,
1736 to_self_delay: 49340,
1737 max_accepted_htlcs: 49340,
1738 funding_pubkey: pubkey_1,
1739 revocation_basepoint: pubkey_2,
1740 payment_basepoint: pubkey_3,
1741 delayed_payment_basepoint: pubkey_4,
1742 htlc_basepoint: pubkey_5,
1743 first_per_commitment_point: pubkey_6,
1744 shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: pubkey_1}, Network::Testnet).script_pubkey()) } else { OptionalField::Absent }
1746 let encoded_value = accept_channel.encode();
1747 let mut target_value = hex::decode("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").unwrap();
1749 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1751 assert_eq!(encoded_value, target_value);
1755 fn encoding_accept_channel() {
1756 do_encoding_accept_channel(false);
1757 do_encoding_accept_channel(true);
1761 fn encoding_funding_created() {
1762 let secp_ctx = Secp256k1::new();
1763 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1764 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1765 let funding_created = msgs::FundingCreated {
1766 temporary_channel_id: [2; 32],
1767 funding_txid: Sha256dHash::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(),
1768 funding_output_index: 255,
1771 let encoded_value = funding_created.encode();
1772 let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202026e96fe9f8b0ddcd729ba03cfafa5a27b050b39d354dd980814268dfa9a44d4c200ffd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1773 assert_eq!(encoded_value, target_value);
1777 fn encoding_funding_signed() {
1778 let secp_ctx = Secp256k1::new();
1779 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1780 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1781 let funding_signed = msgs::FundingSigned {
1782 channel_id: [2; 32],
1785 let encoded_value = funding_signed.encode();
1786 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1787 assert_eq!(encoded_value, target_value);
1791 fn encoding_funding_locked() {
1792 let secp_ctx = Secp256k1::new();
1793 let (_, pubkey_1,) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1794 let funding_locked = msgs::FundingLocked {
1795 channel_id: [2; 32],
1796 next_per_commitment_point: pubkey_1,
1798 let encoded_value = funding_locked.encode();
1799 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
1800 assert_eq!(encoded_value, target_value);
1803 fn do_encoding_shutdown(script_type: u8) {
1804 let secp_ctx = Secp256k1::new();
1805 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1806 let script = Builder::new().push_opcode(opcodes::OP_TRUE).into_script();
1807 let shutdown = msgs::Shutdown {
1808 channel_id: [2; 32],
1809 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() },
1811 let encoded_value = shutdown.encode();
1812 let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202").unwrap();
1813 if script_type == 1 {
1814 target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1815 } else if script_type == 2 {
1816 target_value.append(&mut hex::decode("0017a914da1745e9b549bd0bfa1a569971c77eba30cd5a4b87").unwrap());
1817 } else if script_type == 3 {
1818 target_value.append(&mut hex::decode("0016001479b000887626b294a914501a4cd226b58b235983").unwrap());
1819 } else if script_type == 4 {
1820 target_value.append(&mut hex::decode("002200204ae81572f06e1b88fd5ced7a1a000945432e83e1551e6f721ee9c00b8cc33260").unwrap());
1822 assert_eq!(encoded_value, target_value);
1826 fn encoding_shutdown() {
1827 do_encoding_shutdown(1);
1828 do_encoding_shutdown(2);
1829 do_encoding_shutdown(3);
1830 do_encoding_shutdown(4);
1834 fn encoding_closing_signed() {
1835 let secp_ctx = Secp256k1::new();
1836 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1837 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1838 let closing_signed = msgs::ClosingSigned {
1839 channel_id: [2; 32],
1840 fee_satoshis: 2316138423780173,
1843 let encoded_value = closing_signed.encode();
1844 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1845 assert_eq!(encoded_value, target_value);
1849 fn encoding_update_add_htlc() {
1850 let secp_ctx = Secp256k1::new();
1851 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1852 let onion_routing_packet = msgs::OnionPacket {
1854 public_key: Ok(pubkey_1),
1855 hop_data: [1; 20*65],
1858 let update_add_htlc = msgs::UpdateAddHTLC {
1859 channel_id: [2; 32],
1860 htlc_id: 2316138423780173,
1861 amount_msat: 3608586615801332854,
1862 payment_hash: PaymentHash([1; 32]),
1863 cltv_expiry: 821716,
1864 onion_routing_packet
1866 let encoded_value = update_add_htlc.encode();
1867 let target_value = hex::decode("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").unwrap();
1868 assert_eq!(encoded_value, target_value);
1872 fn encoding_update_fulfill_htlc() {
1873 let update_fulfill_htlc = msgs::UpdateFulfillHTLC {
1874 channel_id: [2; 32],
1875 htlc_id: 2316138423780173,
1876 payment_preimage: PaymentPreimage([1; 32]),
1878 let encoded_value = update_fulfill_htlc.encode();
1879 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d0101010101010101010101010101010101010101010101010101010101010101").unwrap();
1880 assert_eq!(encoded_value, target_value);
1884 fn encoding_update_fail_htlc() {
1885 let reason = OnionErrorPacket {
1886 data: [1; 32].to_vec(),
1888 let update_fail_htlc = msgs::UpdateFailHTLC {
1889 channel_id: [2; 32],
1890 htlc_id: 2316138423780173,
1893 let encoded_value = update_fail_htlc.encode();
1894 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d00200101010101010101010101010101010101010101010101010101010101010101").unwrap();
1895 assert_eq!(encoded_value, target_value);
1899 fn encoding_update_fail_malformed_htlc() {
1900 let update_fail_malformed_htlc = msgs::UpdateFailMalformedHTLC {
1901 channel_id: [2; 32],
1902 htlc_id: 2316138423780173,
1903 sha256_of_onion: [1; 32],
1906 let encoded_value = update_fail_malformed_htlc.encode();
1907 let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d010101010101010101010101010101010101010101010101010101010101010100ff").unwrap();
1908 assert_eq!(encoded_value, target_value);
1911 fn do_encoding_commitment_signed(htlcs: bool) {
1912 let secp_ctx = Secp256k1::new();
1913 let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1914 let (privkey_2, _) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1915 let (privkey_3, _) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1916 let (privkey_4, _) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1917 let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1918 let sig_2 = get_sig_on!(privkey_2, secp_ctx, String::from("01010101010101010101010101010101"));
1919 let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
1920 let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
1921 let commitment_signed = msgs::CommitmentSigned {
1922 channel_id: [2; 32],
1924 htlc_signatures: if htlcs { vec![sig_2, sig_3, sig_4] } else { Vec::new() },
1926 let encoded_value = commitment_signed.encode();
1927 let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1929 target_value.append(&mut hex::decode("00031735b6a427e80d5fe7cd90a2f4ee08dc9c27cda7c35a4172e5d85b12c49d4232537e98f9b1f3c5e6989a8b9644e90e8918127680dbd0d4043510840fc0f1e11a216c280b5395a2546e7e4b2663e04f811622f15a4f91e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d2692b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
1931 target_value.append(&mut hex::decode("0000").unwrap());
1933 assert_eq!(encoded_value, target_value);
1937 fn encoding_commitment_signed() {
1938 do_encoding_commitment_signed(true);
1939 do_encoding_commitment_signed(false);
1943 fn encoding_revoke_and_ack() {
1944 let secp_ctx = Secp256k1::new();
1945 let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1946 let raa = msgs::RevokeAndACK {
1947 channel_id: [2; 32],
1948 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],
1949 next_per_commitment_point: pubkey_1,
1951 let encoded_value = raa.encode();
1952 let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202020101010101010101010101010101010101010101010101010101010101010101031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
1953 assert_eq!(encoded_value, target_value);
1957 fn encoding_update_fee() {
1958 let update_fee = msgs::UpdateFee {
1959 channel_id: [2; 32],
1960 feerate_per_kw: 20190119,
1962 let encoded_value = update_fee.encode();
1963 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202013413a7").unwrap();
1964 assert_eq!(encoded_value, target_value);
1968 fn encoding_init() {
1969 assert_eq!(msgs::Init {
1970 features: InitFeatures::from_le_bytes(vec![0xFF, 0xFF, 0xFF]),
1971 }.encode(), hex::decode("00023fff0003ffffff").unwrap());
1972 assert_eq!(msgs::Init {
1973 features: InitFeatures::from_le_bytes(vec![0xFF]),
1974 }.encode(), hex::decode("0001ff0001ff").unwrap());
1975 assert_eq!(msgs::Init {
1976 features: InitFeatures::from_le_bytes(vec![]),
1977 }.encode(), hex::decode("00000000").unwrap());
1981 fn encoding_error() {
1982 let error = msgs::ErrorMessage {
1983 channel_id: [2; 32],
1984 data: String::from("rust-lightning"),
1986 let encoded_value = error.encode();
1987 let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202000e727573742d6c696768746e696e67").unwrap();
1988 assert_eq!(encoded_value, target_value);
1992 fn encoding_ping() {
1993 let ping = msgs::Ping {
1997 let encoded_value = ping.encode();
1998 let target_value = hex::decode("0040004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
1999 assert_eq!(encoded_value, target_value);
2003 fn encoding_pong() {
2004 let pong = msgs::Pong {
2007 let encoded_value = pong.encode();
2008 let target_value = hex::decode("004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
2009 assert_eq!(encoded_value, target_value);
2013 fn encoding_legacy_onion_hop_data() {
2014 let msg = msgs::OnionHopData {
2015 format: OnionHopDataFormat::Legacy {
2016 short_channel_id: 0xdeadbeef1bad1dea,
2018 amt_to_forward: 0x0badf00d01020304,
2019 outgoing_cltv_value: 0xffffffff,
2021 let encoded_value = msg.encode();
2022 let target_value = hex::decode("00deadbeef1bad1dea0badf00d01020304ffffffff000000000000000000000000").unwrap();
2023 assert_eq!(encoded_value, target_value);
2027 fn encoding_nonfinal_onion_hop_data() {
2028 let mut msg = msgs::OnionHopData {
2029 format: OnionHopDataFormat::NonFinalNode {
2030 short_channel_id: 0xdeadbeef1bad1dea,
2032 amt_to_forward: 0x0badf00d01020304,
2033 outgoing_cltv_value: 0xffffffff,
2035 let encoded_value = msg.encode();
2036 let target_value = hex::decode("1a02080badf00d010203040404ffffffff0608deadbeef1bad1dea").unwrap();
2037 assert_eq!(encoded_value, target_value);
2038 msg = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
2039 if let OnionHopDataFormat::NonFinalNode { short_channel_id } = msg.format {
2040 assert_eq!(short_channel_id, 0xdeadbeef1bad1dea);
2041 } else { panic!(); }
2042 assert_eq!(msg.amt_to_forward, 0x0badf00d01020304);
2043 assert_eq!(msg.outgoing_cltv_value, 0xffffffff);
2047 fn encoding_final_onion_hop_data() {
2048 let mut msg = msgs::OnionHopData {
2049 format: OnionHopDataFormat::FinalNode {
2052 amt_to_forward: 0x0badf00d01020304,
2053 outgoing_cltv_value: 0xffffffff,
2055 let encoded_value = msg.encode();
2056 let target_value = hex::decode("1002080badf00d010203040404ffffffff").unwrap();
2057 assert_eq!(encoded_value, target_value);
2058 msg = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
2059 if let OnionHopDataFormat::FinalNode { payment_data: None } = msg.format { } else { panic!(); }
2060 assert_eq!(msg.amt_to_forward, 0x0badf00d01020304);
2061 assert_eq!(msg.outgoing_cltv_value, 0xffffffff);
2065 fn encoding_final_onion_hop_data_with_secret() {
2066 let expected_payment_secret = PaymentSecret([0x42u8; 32]);
2067 let mut msg = msgs::OnionHopData {
2068 format: OnionHopDataFormat::FinalNode {
2069 payment_data: Some(FinalOnionHopData {
2070 payment_secret: expected_payment_secret,
2071 total_msat: 0x1badca1f
2074 amt_to_forward: 0x0badf00d01020304,
2075 outgoing_cltv_value: 0xffffffff,
2077 let encoded_value = msg.encode();
2078 let target_value = hex::decode("3602080badf00d010203040404ffffffff082442424242424242424242424242424242424242424242424242424242424242421badca1f").unwrap();
2079 assert_eq!(encoded_value, target_value);
2080 msg = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
2081 if let OnionHopDataFormat::FinalNode {
2082 payment_data: Some(FinalOnionHopData {
2084 total_msat: 0x1badca1f
2087 assert_eq!(payment_secret, expected_payment_secret);
2088 } else { panic!(); }
2089 assert_eq!(msg.amt_to_forward, 0x0badf00d01020304);
2090 assert_eq!(msg.outgoing_cltv_value, 0xffffffff);