+++ /dev/null
-use secp256k1::key::PublicKey;
-use secp256k1::{Secp256k1, Signature};
-use secp256k1;
-use bitcoin::util::hash::Sha256dHash;
-use bitcoin::network::serialize::{deserialize,serialize};
-use bitcoin::blockdata::script::Script;
-
-use std::error::Error;
-use std::{cmp, fmt};
-use std::result::Result;
-
-use util::{byte_utils, internal_traits, events};
-use util::ser::{Readable, Reader, Writeable, Writer};
-
-pub trait MsgEncodable {
- fn encode(&self) -> Vec<u8>;
- #[inline]
- fn encoded_len(&self) -> usize { self.encode().len() }
- #[inline]
- fn encode_with_len(&self) -> Vec<u8> {
- let enc = self.encode();
- let mut res = Vec::with_capacity(enc.len() + 2);
- res.extend_from_slice(&byte_utils::be16_to_array(enc.len() as u16));
- res.extend_from_slice(&enc);
- res
- }
-}
-#[derive(Debug)]
-pub enum DecodeError {
- /// Unknown realm byte in an OnionHopData packet
- UnknownRealmByte,
- /// Unknown feature mandating we fail to parse message
- UnknownRequiredFeature,
- /// Failed to decode a public key (ie it's invalid)
- BadPublicKey,
- /// Failed to decode a signature (ie it's invalid)
- BadSignature,
- /// Value expected to be text wasn't decodable as text
- BadText,
- /// Buffer too short
- ShortRead,
- /// node_announcement included more than one address of a given type!
- ExtraAddressesPerType,
- /// A length descriptor in the packet didn't describe the later data correctly
- /// (currently only generated in node_announcement)
- BadLengthDescriptor,
- /// Error from std::io
- Io(::std::io::Error),
- /// 1 or 0 is not found for boolean value
- InvalidValue,
-}
-pub trait MsgDecodable: Sized {
- fn decode(v: &[u8]) -> Result<Self, DecodeError>;
-}
-
-/// Tracks localfeatures which are only in init messages
-#[derive(Clone, PartialEq)]
-pub struct LocalFeatures {
- flags: Vec<u8>,
-}
-
-impl LocalFeatures {
- pub fn new() -> LocalFeatures {
- LocalFeatures {
- flags: Vec::new(),
- }
- }
-
- pub fn supports_data_loss_protect(&self) -> bool {
- self.flags.len() > 0 && (self.flags[0] & 3) != 0
- }
- pub fn requires_data_loss_protect(&self) -> bool {
- self.flags.len() > 0 && (self.flags[0] & 1) != 0
- }
-
- pub fn initial_routing_sync(&self) -> bool {
- self.flags.len() > 0 && (self.flags[0] & (1 << 3)) != 0
- }
- pub fn set_initial_routing_sync(&mut self) {
- if self.flags.len() == 0 {
- self.flags.resize(1, 1 << 3);
- } else {
- self.flags[0] |= 1 << 3;
- }
- }
-
- pub fn supports_upfront_shutdown_script(&self) -> bool {
- self.flags.len() > 0 && (self.flags[0] & (3 << 4)) != 0
- }
- pub fn requires_upfront_shutdown_script(&self) -> bool {
- self.flags.len() > 0 && (self.flags[0] & (1 << 4)) != 0
- }
-
- pub fn requires_unknown_bits(&self) -> bool {
- for (idx, &byte) in self.flags.iter().enumerate() {
- if idx != 0 && (byte & 0x55) != 0 {
- return true;
- } else if idx == 0 && (byte & 0x14) != 0 {
- return true;
- }
- }
- return false;
- }
-
- pub fn supports_unknown_bits(&self) -> bool {
- for (idx, &byte) in self.flags.iter().enumerate() {
- if idx != 0 && byte != 0 {
- return true;
- } else if idx == 0 && (byte & 0xc4) != 0 {
- return true;
- }
- }
- return false;
- }
-}
-
-/// Tracks globalfeatures which are in init messages and routing announcements
-#[derive(Clone, PartialEq)]
-pub struct GlobalFeatures {
- flags: Vec<u8>,
-}
-
-impl GlobalFeatures {
- pub fn new() -> GlobalFeatures {
- GlobalFeatures {
- flags: Vec::new(),
- }
- }
-
- pub fn requires_unknown_bits(&self) -> bool {
- for &byte in self.flags.iter() {
- if (byte & 0x55) != 0 {
- return true;
- }
- }
- return false;
- }
-
- pub fn supports_unknown_bits(&self) -> bool {
- for &byte in self.flags.iter() {
- if byte != 0 {
- return true;
- }
- }
- return false;
- }
-}
-
-pub struct Init {
- pub global_features: GlobalFeatures,
- pub local_features: LocalFeatures,
-}
-
-pub struct ErrorMessage {
- pub channel_id: [u8; 32],
- pub data: String,
-}
-
-pub struct Ping {
- pub ponglen: u16,
- pub byteslen: u16,
-}
-
-pub struct Pong {
- pub byteslen: u16,
-}
-
-pub struct OpenChannel {
- pub chain_hash: Sha256dHash,
- pub temporary_channel_id: [u8; 32],
- pub funding_satoshis: u64,
- pub push_msat: u64,
- pub dust_limit_satoshis: u64,
- pub max_htlc_value_in_flight_msat: u64,
- pub channel_reserve_satoshis: u64,
- pub htlc_minimum_msat: u64,
- pub feerate_per_kw: u32,
- pub to_self_delay: u16,
- pub max_accepted_htlcs: u16,
- pub funding_pubkey: PublicKey,
- pub revocation_basepoint: PublicKey,
- pub payment_basepoint: PublicKey,
- pub delayed_payment_basepoint: PublicKey,
- pub htlc_basepoint: PublicKey,
- pub first_per_commitment_point: PublicKey,
- pub channel_flags: u8,
- pub shutdown_scriptpubkey: Option<Script>,
-}
-
-pub struct AcceptChannel {
- pub temporary_channel_id: [u8; 32],
- pub dust_limit_satoshis: u64,
- pub max_htlc_value_in_flight_msat: u64,
- pub channel_reserve_satoshis: u64,
- pub htlc_minimum_msat: u64,
- pub minimum_depth: u32,
- pub to_self_delay: u16,
- pub max_accepted_htlcs: u16,
- pub funding_pubkey: PublicKey,
- pub revocation_basepoint: PublicKey,
- pub payment_basepoint: PublicKey,
- pub delayed_payment_basepoint: PublicKey,
- pub htlc_basepoint: PublicKey,
- pub first_per_commitment_point: PublicKey,
- pub shutdown_scriptpubkey: Option<Script>,
-}
-
-pub struct FundingCreated {
- pub temporary_channel_id: [u8; 32],
- pub funding_txid: Sha256dHash,
- pub funding_output_index: u16,
- pub signature: Signature,
-}
-
-pub struct FundingSigned {
- pub channel_id: [u8; 32],
- pub signature: Signature,
-}
-
-pub struct FundingLocked {
- pub channel_id: [u8; 32],
- pub next_per_commitment_point: PublicKey,
-}
-
-pub struct Shutdown {
- pub channel_id: [u8; 32],
- pub scriptpubkey: Script,
-}
-
-pub struct ClosingSigned {
- pub channel_id: [u8; 32],
- pub fee_satoshis: u64,
- pub signature: Signature,
-}
-
-#[derive(Clone)]
-pub struct UpdateAddHTLC {
- pub channel_id: [u8; 32],
- pub htlc_id: u64,
- pub amount_msat: u64,
- pub payment_hash: [u8; 32],
- pub cltv_expiry: u32,
- pub onion_routing_packet: OnionPacket,
-}
-
-#[derive(Clone)]
-pub struct UpdateFulfillHTLC {
- pub channel_id: [u8; 32],
- pub htlc_id: u64,
- pub payment_preimage: [u8; 32],
-}
-
-#[derive(Clone)]
-pub struct UpdateFailHTLC {
- pub channel_id: [u8; 32],
- pub htlc_id: u64,
- pub reason: OnionErrorPacket,
-}
-
-#[derive(Clone)]
-pub struct UpdateFailMalformedHTLC {
- pub channel_id: [u8; 32],
- pub htlc_id: u64,
- pub sha256_of_onion: [u8; 32],
- pub failure_code: u16,
-}
-
-#[derive(Clone)]
-pub struct CommitmentSigned {
- pub channel_id: [u8; 32],
- pub signature: Signature,
- pub htlc_signatures: Vec<Signature>,
-}
-
-pub struct RevokeAndACK {
- pub channel_id: [u8; 32],
- pub per_commitment_secret: [u8; 32],
- pub next_per_commitment_point: PublicKey,
-}
-
-pub struct UpdateFee {
- pub channel_id: [u8; 32],
- pub feerate_per_kw: u32,
-}
-
-pub struct DataLossProtect {
- pub your_last_per_commitment_secret: [u8; 32],
- pub my_current_per_commitment_point: PublicKey,
-}
-
-pub struct ChannelReestablish {
- pub channel_id: [u8; 32],
- pub next_local_commitment_number: u64,
- pub next_remote_commitment_number: u64,
- pub data_loss_protect: Option<DataLossProtect>,
-}
-
-#[derive(Clone)]
-pub struct AnnouncementSignatures {
- pub channel_id: [u8; 32],
- pub short_channel_id: u64,
- pub node_signature: Signature,
- pub bitcoin_signature: Signature,
-}
-
-#[derive(Clone)]
-pub enum NetAddress {
- IPv4 {
- addr: [u8; 4],
- port: u16,
- },
- IPv6 {
- addr: [u8; 16],
- port: u16,
- },
- OnionV2 {
- addr: [u8; 10],
- port: u16,
- },
- OnionV3 {
- ed25519_pubkey: [u8; 32],
- checksum: u16,
- version: u8,
- port: u16,
- },
-}
-impl NetAddress {
- fn get_id(&self) -> u8 {
- match self {
- &NetAddress::IPv4 {..} => { 1 },
- &NetAddress::IPv6 {..} => { 2 },
- &NetAddress::OnionV2 {..} => { 3 },
- &NetAddress::OnionV3 {..} => { 4 },
- }
- }
-}
-
-pub struct UnsignedNodeAnnouncement {
- pub features: GlobalFeatures,
- pub timestamp: u32,
- pub node_id: PublicKey,
- pub rgb: [u8; 3],
- pub alias: [u8; 32],
- /// List of addresses on which this node is reachable. Note that you may only have up to one
- /// address of each type, if you have more, they may be silently discarded or we may panic!
- pub addresses: Vec<NetAddress>,
- pub excess_address_data: Vec<u8>,
- pub excess_data: Vec<u8>,
-}
-pub struct NodeAnnouncement {
- pub signature: Signature,
- pub contents: UnsignedNodeAnnouncement,
-}
-
-#[derive(PartialEq, Clone)]
-pub struct UnsignedChannelAnnouncement {
- pub features: GlobalFeatures,
- pub chain_hash: Sha256dHash,
- pub short_channel_id: u64,
- pub node_id_1: PublicKey,
- pub node_id_2: PublicKey,
- pub bitcoin_key_1: PublicKey,
- pub bitcoin_key_2: PublicKey,
- pub excess_data: Vec<u8>,
-}
-#[derive(PartialEq, Clone)]
-pub struct ChannelAnnouncement {
- pub node_signature_1: Signature,
- pub node_signature_2: Signature,
- pub bitcoin_signature_1: Signature,
- pub bitcoin_signature_2: Signature,
- pub contents: UnsignedChannelAnnouncement,
-}
-
-#[derive(PartialEq, Clone)]
-pub struct UnsignedChannelUpdate {
- pub chain_hash: Sha256dHash,
- pub short_channel_id: u64,
- pub timestamp: u32,
- pub flags: u16,
- pub cltv_expiry_delta: u16,
- pub htlc_minimum_msat: u64,
- pub fee_base_msat: u32,
- pub fee_proportional_millionths: u32,
- pub excess_data: Vec<u8>,
-}
-#[derive(PartialEq, Clone)]
-pub struct ChannelUpdate {
- pub signature: Signature,
- pub contents: UnsignedChannelUpdate,
-}
-
-/// Used to put an error message in a HandleError
-pub enum ErrorAction {
- /// The peer took some action which made us think they were useless. Disconnect them.
- DisconnectPeer {
- msg: Option<ErrorMessage>
- },
- /// The peer did something harmless that we weren't able to process, just log and ignore
- IgnoreError,
- /// The peer did something incorrect. Tell them.
- SendErrorMessage {
- msg: ErrorMessage
- },
-}
-
-pub struct HandleError { //TODO: rename me
- pub err: &'static str,
- pub action: Option<ErrorAction>, //TODO: Make this required
-}
-
-/// Struct used to return values from revoke_and_ack messages, containing a bunch of commitment
-/// transaction updates if they were pending.
-pub struct CommitmentUpdate {
- pub update_add_htlcs: Vec<UpdateAddHTLC>,
- pub update_fulfill_htlcs: Vec<UpdateFulfillHTLC>,
- pub update_fail_htlcs: Vec<UpdateFailHTLC>,
- pub update_fail_malformed_htlcs: Vec<UpdateFailMalformedHTLC>,
- pub commitment_signed: CommitmentSigned,
-}
-
-pub enum HTLCFailChannelUpdate {
- ChannelUpdateMessage {
- msg: ChannelUpdate,
- },
- ChannelClosed {
- short_channel_id: u64,
- },
-}
-
-/// A trait to describe an object which can receive channel messages. Messages MAY be called in
-/// paralell when they originate from different their_node_ids, however they MUST NOT be called in
-/// paralell when the two calls have the same their_node_id.
-pub trait ChannelMessageHandler : events::EventsProvider + Send + Sync {
- //Channel init:
- fn handle_open_channel(&self, their_node_id: &PublicKey, msg: &OpenChannel) -> Result<AcceptChannel, HandleError>;
- fn handle_accept_channel(&self, their_node_id: &PublicKey, msg: &AcceptChannel) -> Result<(), HandleError>;
- fn handle_funding_created(&self, their_node_id: &PublicKey, msg: &FundingCreated) -> Result<FundingSigned, HandleError>;
- fn handle_funding_signed(&self, their_node_id: &PublicKey, msg: &FundingSigned) -> Result<(), HandleError>;
- fn handle_funding_locked(&self, their_node_id: &PublicKey, msg: &FundingLocked) -> Result<Option<AnnouncementSignatures>, HandleError>;
-
- // Channl close:
- fn handle_shutdown(&self, their_node_id: &PublicKey, msg: &Shutdown) -> Result<(Option<Shutdown>, Option<ClosingSigned>), HandleError>;
- fn handle_closing_signed(&self, their_node_id: &PublicKey, msg: &ClosingSigned) -> Result<Option<ClosingSigned>, HandleError>;
-
- // HTLC handling:
- fn handle_update_add_htlc(&self, their_node_id: &PublicKey, msg: &UpdateAddHTLC) -> Result<(), HandleError>;
- fn handle_update_fulfill_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFulfillHTLC) -> Result<(), HandleError>;
- fn handle_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFailHTLC) -> Result<Option<HTLCFailChannelUpdate>, HandleError>;
- fn handle_update_fail_malformed_htlc(&self, their_node_id: &PublicKey, msg: &UpdateFailMalformedHTLC) -> Result<(), HandleError>;
- fn handle_commitment_signed(&self, their_node_id: &PublicKey, msg: &CommitmentSigned) -> Result<(RevokeAndACK, Option<CommitmentSigned>), HandleError>;
- fn handle_revoke_and_ack(&self, their_node_id: &PublicKey, msg: &RevokeAndACK) -> Result<Option<CommitmentUpdate>, HandleError>;
-
- fn handle_update_fee(&self, their_node_id: &PublicKey, msg: &UpdateFee) -> Result<(), HandleError>;
-
- // Channel-to-announce:
- fn handle_announcement_signatures(&self, their_node_id: &PublicKey, msg: &AnnouncementSignatures) -> Result<(), HandleError>;
-
- // Connection loss/reestablish:
- /// Indicates a connection to the peer failed/an existing connection was lost. If no connection
- /// is believed to be possible in the future (eg they're sending us messages we don't
- /// understand or indicate they require unknown feature bits), no_connection_possible is set
- /// and any outstanding channels should be failed.
- fn peer_disconnected(&self, their_node_id: &PublicKey, no_connection_possible: bool);
-
- fn peer_connected(&self, their_node_id: &PublicKey) -> Vec<ChannelReestablish>;
- fn handle_channel_reestablish(&self, their_node_id: &PublicKey, msg: &ChannelReestablish) -> Result<(Option<FundingLocked>, Option<RevokeAndACK>, Option<CommitmentUpdate>), HandleError>;
-
- // Error:
- fn handle_error(&self, their_node_id: &PublicKey, msg: &ErrorMessage);
-}
-
-pub trait RoutingMessageHandler : Send + Sync {
- fn handle_node_announcement(&self, msg: &NodeAnnouncement) -> Result<bool, HandleError>;
- /// Handle a channel_announcement message, returning true if it should be forwarded on, false
- /// or returning an Err otherwise.
- fn handle_channel_announcement(&self, msg: &ChannelAnnouncement) -> Result<bool, HandleError>;
- fn handle_channel_update(&self, msg: &ChannelUpdate) -> Result<bool, HandleError>;
- fn handle_htlc_fail_channel_update(&self, update: &HTLCFailChannelUpdate);
-}
-
-pub struct OnionRealm0HopData {
- pub short_channel_id: u64,
- pub amt_to_forward: u64,
- pub outgoing_cltv_value: u32,
- // 12 bytes of 0-padding
-}
-
-pub struct OnionHopData {
- pub realm: u8,
- pub data: OnionRealm0HopData,
- pub hmac: [u8; 32],
-}
-unsafe impl internal_traits::NoDealloc for OnionHopData{}
-
-#[derive(Clone)]
-pub struct OnionPacket {
- pub version: u8,
- /// In order to ensure we always return an error on Onion decode in compliance with BOLT 4, we
- /// have to deserialize OnionPackets contained in UpdateAddHTLCs even if the ephemeral public
- /// key (here) is bogus, so we hold a Result instead of a PublicKey as we'd like.
- pub public_key: Result<PublicKey, secp256k1::Error>,
- pub hop_data: [u8; 20*65],
- pub hmac: [u8; 32],
-}
-
-pub struct DecodedOnionErrorPacket {
- pub hmac: [u8; 32],
- pub failuremsg: Vec<u8>,
- pub pad: Vec<u8>,
-}
-
-#[derive(Clone)]
-pub struct OnionErrorPacket {
- // This really should be a constant size slice, but the spec lets these things be up to 128KB?
- // (TODO) We limit it in decode to much lower...
- pub data: Vec<u8>,
-}
-
-impl Error for DecodeError {
- fn description(&self) -> &str {
- match *self {
- DecodeError::UnknownRealmByte => "Unknown realm byte in Onion packet",
- DecodeError::UnknownRequiredFeature => "Unknown required feature preventing decode",
- DecodeError::BadPublicKey => "Invalid public key in packet",
- DecodeError::BadSignature => "Invalid signature in packet",
- DecodeError::BadText => "Invalid text in packet",
- DecodeError::ShortRead => "Packet extended beyond the provided bytes",
- DecodeError::ExtraAddressesPerType => "More than one address of a single type",
- DecodeError::BadLengthDescriptor => "A length descriptor in the packet didn't describe the later data correctly",
- DecodeError::Io(ref e) => e.description(),
- DecodeError::InvalidValue => "0 or 1 is not found for boolean",
- }
- }
-}
-impl fmt::Display for DecodeError {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- f.write_str(self.description())
- }
-}
-
-impl fmt::Debug for HandleError {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- f.write_str(self.err)
- }
-}
-
-impl From<::std::io::Error> for DecodeError {
- fn from(e: ::std::io::Error) -> Self {
- if e.kind() == ::std::io::ErrorKind::UnexpectedEof {
- DecodeError::ShortRead
- } else {
- DecodeError::Io(e)
- }
- }
-}
-
-macro_rules! secp_pubkey {
- ( $ctx: expr, $slice: expr ) => {
- match PublicKey::from_slice($ctx, $slice) {
- Ok(key) => key,
- Err(_) => return Err(DecodeError::BadPublicKey)
- }
- };
-}
-
-macro_rules! secp_signature {
- ( $ctx: expr, $slice: expr ) => {
- match Signature::from_compact($ctx, $slice) {
- Ok(sig) => sig,
- Err(_) => return Err(DecodeError::BadSignature)
- }
- };
-}
-
-impl MsgDecodable for LocalFeatures {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 2 { return Err(DecodeError::ShortRead); }
- let len = byte_utils::slice_to_be16(&v[0..2]) as usize;
- if v.len() < len + 2 { return Err(DecodeError::ShortRead); }
- let mut flags = Vec::with_capacity(len);
- flags.extend_from_slice(&v[2..2 + len]);
- Ok(Self {
- flags: flags
- })
- }
-}
-impl MsgEncodable for LocalFeatures {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(self.flags.len() + 2);
- res.extend_from_slice(&byte_utils::be16_to_array(self.flags.len() as u16));
- res.extend_from_slice(&self.flags[..]);
- res
- }
- fn encoded_len(&self) -> usize { self.flags.len() + 2 }
-}
-
-impl MsgDecodable for GlobalFeatures {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 2 { return Err(DecodeError::ShortRead); }
- let len = byte_utils::slice_to_be16(&v[0..2]) as usize;
- if v.len() < len + 2 { return Err(DecodeError::ShortRead); }
- let mut flags = Vec::with_capacity(len);
- flags.extend_from_slice(&v[2..2 + len]);
- Ok(Self {
- flags: flags
- })
- }
-}
-impl MsgEncodable for GlobalFeatures {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(self.flags.len() + 2);
- res.extend_from_slice(&byte_utils::be16_to_array(self.flags.len() as u16));
- res.extend_from_slice(&self.flags[..]);
- res
- }
- fn encoded_len(&self) -> usize { self.flags.len() + 2 }
-}
-
-impl MsgDecodable for Init {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- let global_features = GlobalFeatures::decode(v)?;
- if v.len() < global_features.flags.len() + 4 {
- return Err(DecodeError::ShortRead);
- }
- let local_features = LocalFeatures::decode(&v[global_features.flags.len() + 2..])?;
- Ok(Self {
- global_features: global_features,
- local_features: local_features,
- })
- }
-}
-impl MsgEncodable for Init {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(self.global_features.flags.len() + self.local_features.flags.len());
- res.extend_from_slice(&self.global_features.encode()[..]);
- res.extend_from_slice(&self.local_features.encode()[..]);
- res
- }
-}
-
-impl MsgDecodable for Ping {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 4 {
- return Err(DecodeError::ShortRead);
- }
- let ponglen = byte_utils::slice_to_be16(&v[0..2]);
- let byteslen = byte_utils::slice_to_be16(&v[2..4]);
- if v.len() < 4 + byteslen as usize {
- return Err(DecodeError::ShortRead);
- }
- Ok(Self {
- ponglen,
- byteslen,
- })
- }
-}
-impl MsgEncodable for Ping {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(self.byteslen as usize + 2);
- res.extend_from_slice(&byte_utils::be16_to_array(self.byteslen));
- res.resize(2 + self.byteslen as usize, 0);
- res
- }
-}
-
-impl MsgDecodable for Pong {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 2 {
- return Err(DecodeError::ShortRead);
- }
- let byteslen = byte_utils::slice_to_be16(&v[0..2]);
- if v.len() < 2 + byteslen as usize {
- return Err(DecodeError::ShortRead);
- }
- Ok(Self {
- byteslen
- })
- }
-}
-impl MsgEncodable for Pong {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(self.byteslen as usize + 2);
- res.extend_from_slice(&byte_utils::be16_to_array(self.byteslen));
- res.resize(2 + self.byteslen as usize, 0);
- res
- }
-}
-
-impl MsgDecodable for OpenChannel {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 2*32+6*8+4+2*2+6*33+1 {
- return Err(DecodeError::ShortRead);
- }
- let ctx = Secp256k1::without_caps();
-
- let mut shutdown_scriptpubkey = None;
- if v.len() >= 321 {
- let len = byte_utils::slice_to_be16(&v[319..321]) as usize;
- if v.len() < 321+len {
- return Err(DecodeError::ShortRead);
- }
- shutdown_scriptpubkey = Some(Script::from(v[321..321+len].to_vec()));
- }
- let mut temp_channel_id = [0; 32];
- temp_channel_id[..].copy_from_slice(&v[32..64]);
- Ok(OpenChannel {
- chain_hash: deserialize(&v[0..32]).unwrap(),
- temporary_channel_id: temp_channel_id,
- funding_satoshis: byte_utils::slice_to_be64(&v[64..72]),
- push_msat: byte_utils::slice_to_be64(&v[72..80]),
- dust_limit_satoshis: byte_utils::slice_to_be64(&v[80..88]),
- max_htlc_value_in_flight_msat: byte_utils::slice_to_be64(&v[88..96]),
- channel_reserve_satoshis: byte_utils::slice_to_be64(&v[96..104]),
- htlc_minimum_msat: byte_utils::slice_to_be64(&v[104..112]),
- feerate_per_kw: byte_utils::slice_to_be32(&v[112..116]),
- to_self_delay: byte_utils::slice_to_be16(&v[116..118]),
- max_accepted_htlcs: byte_utils::slice_to_be16(&v[118..120]),
- funding_pubkey: secp_pubkey!(&ctx, &v[120..153]),
- revocation_basepoint: secp_pubkey!(&ctx, &v[153..186]),
- payment_basepoint: secp_pubkey!(&ctx, &v[186..219]),
- delayed_payment_basepoint: secp_pubkey!(&ctx, &v[219..252]),
- htlc_basepoint: secp_pubkey!(&ctx, &v[252..285]),
- first_per_commitment_point: secp_pubkey!(&ctx, &v[285..318]),
- channel_flags: v[318],
- shutdown_scriptpubkey: shutdown_scriptpubkey
- })
- }
-}
-impl MsgEncodable for OpenChannel {
- fn encode(&self) -> Vec<u8> {
- let mut res = match &self.shutdown_scriptpubkey {
- &Some(ref script) => Vec::with_capacity(319 + 2 + script.len()),
- &None => Vec::with_capacity(319),
- };
- res.extend_from_slice(&serialize(&self.chain_hash).unwrap());
- res.extend_from_slice(&serialize(&self.temporary_channel_id).unwrap());
- res.extend_from_slice(&byte_utils::be64_to_array(self.funding_satoshis));
- res.extend_from_slice(&byte_utils::be64_to_array(self.push_msat));
- res.extend_from_slice(&byte_utils::be64_to_array(self.dust_limit_satoshis));
- res.extend_from_slice(&byte_utils::be64_to_array(self.max_htlc_value_in_flight_msat));
- res.extend_from_slice(&byte_utils::be64_to_array(self.channel_reserve_satoshis));
- res.extend_from_slice(&byte_utils::be64_to_array(self.htlc_minimum_msat));
- res.extend_from_slice(&byte_utils::be32_to_array(self.feerate_per_kw));
- res.extend_from_slice(&byte_utils::be16_to_array(self.to_self_delay));
- res.extend_from_slice(&byte_utils::be16_to_array(self.max_accepted_htlcs));
- res.extend_from_slice(&self.funding_pubkey.serialize());
- res.extend_from_slice(&self.revocation_basepoint.serialize());
- res.extend_from_slice(&self.payment_basepoint.serialize());
- res.extend_from_slice(&self.delayed_payment_basepoint.serialize());
- res.extend_from_slice(&self.htlc_basepoint.serialize());
- res.extend_from_slice(&self.first_per_commitment_point.serialize());
- res.push(self.channel_flags);
- if let &Some(ref script) = &self.shutdown_scriptpubkey {
- res.extend_from_slice(&byte_utils::be16_to_array(script.len() as u16));
- res.extend_from_slice(&script[..]);
- }
- res
- }
-}
-
-impl MsgDecodable for AcceptChannel {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+4*8+4+2*2+6*33 {
- return Err(DecodeError::ShortRead);
- }
- let ctx = Secp256k1::without_caps();
-
- let mut shutdown_scriptpubkey = None;
- if v.len() >= 272 {
- let len = byte_utils::slice_to_be16(&v[270..272]) as usize;
- if v.len() < 272+len {
- return Err(DecodeError::ShortRead);
- }
- shutdown_scriptpubkey = Some(Script::from(v[272..272+len].to_vec()));
- }
-
- let mut temporary_channel_id = [0; 32];
- temporary_channel_id[..].copy_from_slice(&v[0..32]);
- Ok(Self {
- temporary_channel_id,
- dust_limit_satoshis: byte_utils::slice_to_be64(&v[32..40]),
- max_htlc_value_in_flight_msat: byte_utils::slice_to_be64(&v[40..48]),
- channel_reserve_satoshis: byte_utils::slice_to_be64(&v[48..56]),
- htlc_minimum_msat: byte_utils::slice_to_be64(&v[56..64]),
- minimum_depth: byte_utils::slice_to_be32(&v[64..68]),
- to_self_delay: byte_utils::slice_to_be16(&v[68..70]),
- max_accepted_htlcs: byte_utils::slice_to_be16(&v[70..72]),
- funding_pubkey: secp_pubkey!(&ctx, &v[72..105]),
- revocation_basepoint: secp_pubkey!(&ctx, &v[105..138]),
- payment_basepoint: secp_pubkey!(&ctx, &v[138..171]),
- delayed_payment_basepoint: secp_pubkey!(&ctx, &v[171..204]),
- htlc_basepoint: secp_pubkey!(&ctx, &v[204..237]),
- first_per_commitment_point: secp_pubkey!(&ctx, &v[237..270]),
- shutdown_scriptpubkey: shutdown_scriptpubkey
- })
- }
-}
-impl MsgEncodable for AcceptChannel {
- fn encode(&self) -> Vec<u8> {
- let mut res = match &self.shutdown_scriptpubkey {
- &Some(ref script) => Vec::with_capacity(270 + 2 + script.len()),
- &None => Vec::with_capacity(270),
- };
- res.extend_from_slice(&self.temporary_channel_id);
- res.extend_from_slice(&byte_utils::be64_to_array(self.dust_limit_satoshis));
- res.extend_from_slice(&byte_utils::be64_to_array(self.max_htlc_value_in_flight_msat));
- res.extend_from_slice(&byte_utils::be64_to_array(self.channel_reserve_satoshis));
- res.extend_from_slice(&byte_utils::be64_to_array(self.htlc_minimum_msat));
- res.extend_from_slice(&byte_utils::be32_to_array(self.minimum_depth));
- res.extend_from_slice(&byte_utils::be16_to_array(self.to_self_delay));
- res.extend_from_slice(&byte_utils::be16_to_array(self.max_accepted_htlcs));
- res.extend_from_slice(&self.funding_pubkey.serialize());
- res.extend_from_slice(&self.revocation_basepoint.serialize());
- res.extend_from_slice(&self.payment_basepoint.serialize());
- res.extend_from_slice(&self.delayed_payment_basepoint.serialize());
- res.extend_from_slice(&self.htlc_basepoint.serialize());
- res.extend_from_slice(&self.first_per_commitment_point.serialize());
- if let &Some(ref script) = &self.shutdown_scriptpubkey {
- res.extend_from_slice(&byte_utils::be16_to_array(script.len() as u16));
- res.extend_from_slice(&script[..]);
- }
- res
- }
-}
-
-impl MsgDecodable for FundingCreated {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+32+2+64 {
- return Err(DecodeError::ShortRead);
- }
- let ctx = Secp256k1::without_caps();
- let mut temporary_channel_id = [0; 32];
- temporary_channel_id[..].copy_from_slice(&v[0..32]);
- Ok(Self {
- temporary_channel_id,
- funding_txid: deserialize(&v[32..64]).unwrap(),
- funding_output_index: byte_utils::slice_to_be16(&v[64..66]),
- signature: secp_signature!(&ctx, &v[66..130]),
- })
- }
-}
-impl MsgEncodable for FundingCreated {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+32+2+64);
- res.extend_from_slice(&self.temporary_channel_id);
- res.extend_from_slice(&serialize(&self.funding_txid).unwrap()[..]);
- res.extend_from_slice(&byte_utils::be16_to_array(self.funding_output_index));
- let secp_ctx = Secp256k1::without_caps();
- res.extend_from_slice(&self.signature.serialize_compact(&secp_ctx));
- res
- }
-}
-
-impl MsgDecodable for FundingSigned {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+64 {
- return Err(DecodeError::ShortRead);
- }
- let ctx = Secp256k1::without_caps();
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- Ok(Self {
- channel_id,
- signature: secp_signature!(&ctx, &v[32..96]),
- })
- }
-}
-impl MsgEncodable for FundingSigned {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+64);
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&self.signature.serialize_compact(&Secp256k1::without_caps()));
- res
- }
-}
-
-impl MsgDecodable for FundingLocked {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+33 {
- return Err(DecodeError::ShortRead);
- }
- let ctx = Secp256k1::without_caps();
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- Ok(Self {
- channel_id,
- next_per_commitment_point: secp_pubkey!(&ctx, &v[32..65]),
- })
- }
-}
-impl MsgEncodable for FundingLocked {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+33);
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&self.next_per_commitment_point.serialize());
- res
- }
-}
-
-impl MsgDecodable for Shutdown {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32 + 2 {
- return Err(DecodeError::ShortRead);
- }
- let scriptlen = byte_utils::slice_to_be16(&v[32..34]) as usize;
- if v.len() < 32 + 2 + scriptlen {
- return Err(DecodeError::ShortRead);
- }
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- Ok(Self {
- channel_id,
- scriptpubkey: Script::from(v[34..34 + scriptlen].to_vec()),
- })
- }
-}
-impl MsgEncodable for Shutdown {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32 + 2 + self.scriptpubkey.len());
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&byte_utils::be16_to_array(self.scriptpubkey.len() as u16));
- res.extend_from_slice(&self.scriptpubkey[..]);
- res
- }
-}
-
-impl MsgDecodable for ClosingSigned {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32 + 8 + 64 {
- return Err(DecodeError::ShortRead);
- }
- let secp_ctx = Secp256k1::without_caps();
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- Ok(Self {
- channel_id,
- fee_satoshis: byte_utils::slice_to_be64(&v[32..40]),
- signature: secp_signature!(&secp_ctx, &v[40..104]),
- })
- }
-}
-impl MsgEncodable for ClosingSigned {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+8+64);
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&byte_utils::be64_to_array(self.fee_satoshis));
- let secp_ctx = Secp256k1::without_caps();
- res.extend_from_slice(&self.signature.serialize_compact(&secp_ctx));
- res
- }
-}
-
-impl MsgDecodable for UpdateAddHTLC {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+8+8+32+4+1+33+20*65+32 {
- return Err(DecodeError::ShortRead);
- }
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- let mut payment_hash = [0; 32];
- payment_hash.copy_from_slice(&v[48..80]);
- Ok(Self{
- channel_id,
- htlc_id: byte_utils::slice_to_be64(&v[32..40]),
- amount_msat: byte_utils::slice_to_be64(&v[40..48]),
- payment_hash,
- cltv_expiry: byte_utils::slice_to_be32(&v[80..84]),
- onion_routing_packet: OnionPacket::decode(&v[84..84+1366])?,
- })
- }
-}
-impl MsgEncodable for UpdateAddHTLC {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+8+8+32+4+1366);
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&byte_utils::be64_to_array(self.htlc_id));
- res.extend_from_slice(&byte_utils::be64_to_array(self.amount_msat));
- res.extend_from_slice(&self.payment_hash);
- res.extend_from_slice(&byte_utils::be32_to_array(self.cltv_expiry));
- res.extend_from_slice(&self.onion_routing_packet.encode()[..]);
- res
- }
-}
-
-impl MsgDecodable for UpdateFulfillHTLC {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+8+32 {
- return Err(DecodeError::ShortRead);
- }
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- let mut payment_preimage = [0; 32];
- payment_preimage.copy_from_slice(&v[40..72]);
- Ok(Self{
- channel_id,
- htlc_id: byte_utils::slice_to_be64(&v[32..40]),
- payment_preimage,
- })
- }
-}
-impl MsgEncodable for UpdateFulfillHTLC {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+8+32);
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&byte_utils::be64_to_array(self.htlc_id));
- res.extend_from_slice(&self.payment_preimage);
- res
- }
-}
-
-impl MsgDecodable for UpdateFailHTLC {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+8 {
- return Err(DecodeError::ShortRead);
- }
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- Ok(Self{
- channel_id,
- htlc_id: byte_utils::slice_to_be64(&v[32..40]),
- reason: OnionErrorPacket::decode(&v[40..])?,
- })
- }
-}
-impl MsgEncodable for UpdateFailHTLC {
- fn encode(&self) -> Vec<u8> {
- let reason = self.reason.encode();
- let mut res = Vec::with_capacity(32+8+reason.len());
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&byte_utils::be64_to_array(self.htlc_id));
- res.extend_from_slice(&reason[..]);
- res
- }
-}
-
-impl MsgDecodable for UpdateFailMalformedHTLC {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+8+32+2 {
- return Err(DecodeError::ShortRead);
- }
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- let mut sha256_of_onion = [0; 32];
- sha256_of_onion.copy_from_slice(&v[40..72]);
- Ok(Self{
- channel_id,
- htlc_id: byte_utils::slice_to_be64(&v[32..40]),
- sha256_of_onion,
- failure_code: byte_utils::slice_to_be16(&v[72..74]),
- })
- }
-}
-impl MsgEncodable for UpdateFailMalformedHTLC {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+8+32+2);
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&byte_utils::be64_to_array(self.htlc_id));
- res.extend_from_slice(&self.sha256_of_onion);
- res.extend_from_slice(&byte_utils::be16_to_array(self.failure_code));
- res
- }
-}
-
-impl MsgDecodable for CommitmentSigned {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+64+2 {
- return Err(DecodeError::ShortRead);
- }
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
-
- let htlcs = byte_utils::slice_to_be16(&v[96..98]) as usize;
- if v.len() < 32+64+2+htlcs*64 {
- return Err(DecodeError::ShortRead);
- }
- let mut htlc_signatures = Vec::with_capacity(htlcs);
- let secp_ctx = Secp256k1::without_caps();
- for i in 0..htlcs {
- htlc_signatures.push(secp_signature!(&secp_ctx, &v[98+i*64..98+(i+1)*64]));
- }
- Ok(Self {
- channel_id,
- signature: secp_signature!(&secp_ctx, &v[32..96]),
- htlc_signatures,
- })
- }
-}
-impl MsgEncodable for CommitmentSigned {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+64+2+self.htlc_signatures.len()*64);
- res.extend_from_slice(&self.channel_id);
- let secp_ctx = Secp256k1::without_caps();
- res.extend_from_slice(&self.signature.serialize_compact(&secp_ctx));
- res.extend_from_slice(&byte_utils::be16_to_array(self.htlc_signatures.len() as u16));
- for i in 0..self.htlc_signatures.len() {
- res.extend_from_slice(&self.htlc_signatures[i].serialize_compact(&secp_ctx));
- }
- res
- }
-}
-
-impl MsgDecodable for RevokeAndACK {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+32+33 {
- return Err(DecodeError::ShortRead);
- }
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- let mut per_commitment_secret = [0; 32];
- per_commitment_secret.copy_from_slice(&v[32..64]);
- let secp_ctx = Secp256k1::without_caps();
- Ok(Self {
- channel_id,
- per_commitment_secret,
- next_per_commitment_point: secp_pubkey!(&secp_ctx, &v[64..97]),
- })
- }
-}
-impl MsgEncodable for RevokeAndACK {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+32+33);
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&self.per_commitment_secret);
- res.extend_from_slice(&self.next_per_commitment_point.serialize());
- res
- }
-}
-
-impl MsgDecodable for UpdateFee {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+4 {
- return Err(DecodeError::ShortRead);
- }
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- Ok(Self {
- channel_id,
- feerate_per_kw: byte_utils::slice_to_be32(&v[32..36]),
- })
- }
-}
-impl MsgEncodable for UpdateFee {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+4);
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&byte_utils::be32_to_array(self.feerate_per_kw));
- res
- }
-}
-
-impl MsgDecodable for ChannelReestablish {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+2*8 {
- return Err(DecodeError::ShortRead);
- }
-
- let data_loss_protect = if v.len() > 32+2*8 {
- if v.len() < 32+2*8 + 33+32 {
- return Err(DecodeError::ShortRead);
- }
- let mut inner_array = [0; 32];
- inner_array.copy_from_slice(&v[48..48+32]);
- Some(DataLossProtect {
- your_last_per_commitment_secret: inner_array,
- my_current_per_commitment_point: secp_pubkey!(&Secp256k1::without_caps(), &v[48+32..48+32+33]),
- })
- } else { None };
-
- Ok(Self {
- channel_id: deserialize(&v[0..32]).unwrap(),
- next_local_commitment_number: byte_utils::slice_to_be64(&v[32..40]),
- next_remote_commitment_number: byte_utils::slice_to_be64(&v[40..48]),
- data_loss_protect: data_loss_protect,
- })
- }
-}
-impl MsgEncodable for ChannelReestablish {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(if self.data_loss_protect.is_some() { 32+2*8+33+32 } else { 32+2*8 });
-
- res.extend_from_slice(&serialize(&self.channel_id).unwrap()[..]);
- res.extend_from_slice(&byte_utils::be64_to_array(self.next_local_commitment_number));
- res.extend_from_slice(&byte_utils::be64_to_array(self.next_remote_commitment_number));
-
- if let &Some(ref data_loss_protect) = &self.data_loss_protect {
- res.extend_from_slice(&data_loss_protect.your_last_per_commitment_secret[..]);
- res.extend_from_slice(&data_loss_protect.my_current_per_commitment_point.serialize());
- }
- res
- }
-}
-
-impl MsgDecodable for AnnouncementSignatures {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+8+64*2 {
- return Err(DecodeError::ShortRead);
- }
- let secp_ctx = Secp256k1::without_caps();
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- Ok(Self {
- channel_id,
- short_channel_id: byte_utils::slice_to_be64(&v[32..40]),
- node_signature: secp_signature!(&secp_ctx, &v[40..104]),
- bitcoin_signature: secp_signature!(&secp_ctx, &v[104..168]),
- })
- }
-}
-impl MsgEncodable for AnnouncementSignatures {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32+8+64*2);
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&byte_utils::be64_to_array(self.short_channel_id));
- let secp_ctx = Secp256k1::without_caps();
- res.extend_from_slice(&self.node_signature.serialize_compact(&secp_ctx));
- res.extend_from_slice(&self.bitcoin_signature.serialize_compact(&secp_ctx));
- res
- }
-}
-
-impl MsgDecodable for UnsignedNodeAnnouncement {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- let features = GlobalFeatures::decode(&v[..])?;
- if features.requires_unknown_bits() {
- return Err(DecodeError::UnknownRequiredFeature);
- }
-
- if v.len() < features.encoded_len() + 4 + 33 + 3 + 32 + 2 {
- return Err(DecodeError::ShortRead);
- }
- let start = features.encoded_len();
-
- let mut rgb = [0; 3];
- rgb.copy_from_slice(&v[start + 37..start + 40]);
-
- let mut alias = [0; 32];
- alias.copy_from_slice(&v[start + 40..start + 72]);
-
- let addrlen = byte_utils::slice_to_be16(&v[start + 72..start + 74]) as usize;
- if v.len() < start + 74 + addrlen {
- return Err(DecodeError::ShortRead);
- }
- let addr_read_limit = start + 74 + addrlen;
-
- let mut addresses = Vec::with_capacity(4);
- let mut read_pos = start + 74;
- loop {
- if addr_read_limit <= read_pos { break; }
- match v[read_pos] {
- 1 => {
- if addresses.len() > 0 {
- return Err(DecodeError::ExtraAddressesPerType);
- }
- if addr_read_limit < read_pos + 1 + 6 {
- return Err(DecodeError::BadLengthDescriptor);
- }
- let mut addr = [0; 4];
- addr.copy_from_slice(&v[read_pos + 1..read_pos + 5]);
- addresses.push(NetAddress::IPv4 {
- addr,
- port: byte_utils::slice_to_be16(&v[read_pos + 5..read_pos + 7]),
- });
- read_pos += 1 + 6;
- },
- 2 => {
- if addresses.len() > 1 || (addresses.len() == 1 && addresses[0].get_id() != 1) {
- return Err(DecodeError::ExtraAddressesPerType);
- }
- if addr_read_limit < read_pos + 1 + 18 {
- return Err(DecodeError::BadLengthDescriptor);
- }
- let mut addr = [0; 16];
- addr.copy_from_slice(&v[read_pos + 1..read_pos + 17]);
- addresses.push(NetAddress::IPv6 {
- addr,
- port: byte_utils::slice_to_be16(&v[read_pos + 17..read_pos + 19]),
- });
- read_pos += 1 + 18;
- },
- 3 => {
- if addresses.len() > 2 || (addresses.len() > 0 && addresses.last().unwrap().get_id() > 2) {
- return Err(DecodeError::ExtraAddressesPerType);
- }
- if addr_read_limit < read_pos + 1 + 12 {
- return Err(DecodeError::BadLengthDescriptor);
- }
- let mut addr = [0; 10];
- addr.copy_from_slice(&v[read_pos + 1..read_pos + 11]);
- addresses.push(NetAddress::OnionV2 {
- addr,
- port: byte_utils::slice_to_be16(&v[read_pos + 11..read_pos + 13]),
- });
- read_pos += 1 + 12;
- },
- 4 => {
- if addresses.len() > 3 || (addresses.len() > 0 && addresses.last().unwrap().get_id() > 3) {
- return Err(DecodeError::ExtraAddressesPerType);
- }
- if addr_read_limit < read_pos + 1 + 37 {
- return Err(DecodeError::BadLengthDescriptor);
- }
- let mut ed25519_pubkey = [0; 32];
- ed25519_pubkey.copy_from_slice(&v[read_pos + 1..read_pos + 33]);
- addresses.push(NetAddress::OnionV3 {
- ed25519_pubkey,
- checksum: byte_utils::slice_to_be16(&v[read_pos + 33..read_pos + 35]),
- version: v[read_pos + 35],
- port: byte_utils::slice_to_be16(&v[read_pos + 36..read_pos + 38]),
- });
- read_pos += 1 + 37;
- },
- _ => { break; } // We've read all we can, we dont understand anything higher (and they're sorted)
- }
- }
-
- let excess_address_data = if read_pos < addr_read_limit {
- let mut excess_address_data = Vec::with_capacity(addr_read_limit - read_pos);
- excess_address_data.extend_from_slice(&v[read_pos..addr_read_limit]);
- excess_address_data
- } else { Vec::new() };
-
- let mut excess_data = Vec::with_capacity(v.len() - addr_read_limit);
- excess_data.extend_from_slice(&v[addr_read_limit..]);
-
- let secp_ctx = Secp256k1::without_caps();
- Ok(Self {
- features,
- timestamp: byte_utils::slice_to_be32(&v[start..start + 4]),
- node_id: secp_pubkey!(&secp_ctx, &v[start + 4..start + 37]),
- rgb,
- alias,
- addresses,
- excess_address_data,
- excess_data,
- })
- }
-}
-impl MsgEncodable for UnsignedNodeAnnouncement {
- fn encode(&self) -> Vec<u8> {
- let features = self.features.encode();
- let mut res = Vec::with_capacity(74 + features.len() + self.addresses.len()*7 + self.excess_address_data.len() + self.excess_data.len());
- res.extend_from_slice(&features[..]);
- res.extend_from_slice(&byte_utils::be32_to_array(self.timestamp));
- res.extend_from_slice(&self.node_id.serialize());
- res.extend_from_slice(&self.rgb);
- res.extend_from_slice(&self.alias);
- let mut addr_slice = Vec::with_capacity(self.addresses.len() * 18);
- let mut addrs_to_encode = self.addresses.clone();
- addrs_to_encode.sort_unstable_by(|a, b| { a.get_id().cmp(&b.get_id()) });
- addrs_to_encode.dedup_by(|a, b| { a.get_id() == b.get_id() });
- for addr in addrs_to_encode.iter() {
- match addr {
- &NetAddress::IPv4{addr, port} => {
- addr_slice.push(1);
- addr_slice.extend_from_slice(&addr);
- addr_slice.extend_from_slice(&byte_utils::be16_to_array(port));
- },
- &NetAddress::IPv6{addr, port} => {
- addr_slice.push(2);
- addr_slice.extend_from_slice(&addr);
- addr_slice.extend_from_slice(&byte_utils::be16_to_array(port));
- },
- &NetAddress::OnionV2{addr, port} => {
- addr_slice.push(3);
- addr_slice.extend_from_slice(&addr);
- addr_slice.extend_from_slice(&byte_utils::be16_to_array(port));
- },
- &NetAddress::OnionV3{ed25519_pubkey, checksum, version, port} => {
- addr_slice.push(4);
- addr_slice.extend_from_slice(&ed25519_pubkey);
- addr_slice.extend_from_slice(&byte_utils::be16_to_array(checksum));
- addr_slice.push(version);
- addr_slice.extend_from_slice(&byte_utils::be16_to_array(port));
- },
- }
- }
- res.extend_from_slice(&byte_utils::be16_to_array((addr_slice.len() + self.excess_address_data.len()) as u16));
- res.extend_from_slice(&addr_slice[..]);
- res.extend_from_slice(&self.excess_address_data[..]);
- res.extend_from_slice(&self.excess_data[..]);
- res
- }
-}
-
-impl MsgDecodable for NodeAnnouncement {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 64 {
- return Err(DecodeError::ShortRead);
- }
- let secp_ctx = Secp256k1::without_caps();
- Ok(Self {
- signature: secp_signature!(&secp_ctx, &v[0..64]),
- contents: UnsignedNodeAnnouncement::decode(&v[64..])?,
- })
- }
-}
-impl MsgEncodable for NodeAnnouncement {
- fn encode(&self) -> Vec<u8> {
- let contents = self.contents.encode();
- let mut res = Vec::with_capacity(64 + contents.len());
- let secp_ctx = Secp256k1::without_caps();
- res.extend_from_slice(&self.signature.serialize_compact(&secp_ctx));
- res.extend_from_slice(&contents);
- res
- }
-}
-
-impl MsgDecodable for UnsignedChannelAnnouncement {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- let features = GlobalFeatures::decode(&v[..])?;
- if features.requires_unknown_bits() {
- return Err(DecodeError::UnknownRequiredFeature);
- }
- if v.len() < features.encoded_len() + 32 + 8 + 33*4 {
- return Err(DecodeError::ShortRead);
- }
- let start = features.encoded_len();
- let secp_ctx = Secp256k1::without_caps();
- let mut excess_data = Vec::with_capacity(v.len() - start - 172);
- excess_data.extend_from_slice(&v[start + 172..]);
- Ok(Self {
- features,
- chain_hash: deserialize(&v[start..start + 32]).unwrap(),
- short_channel_id: byte_utils::slice_to_be64(&v[start + 32..start + 40]),
- node_id_1: secp_pubkey!(&secp_ctx, &v[start + 40..start + 73]),
- node_id_2: secp_pubkey!(&secp_ctx, &v[start + 73..start + 106]),
- bitcoin_key_1: secp_pubkey!(&secp_ctx, &v[start + 106..start + 139]),
- bitcoin_key_2: secp_pubkey!(&secp_ctx, &v[start + 139..start + 172]),
- excess_data,
- })
- }
-}
-impl MsgEncodable for UnsignedChannelAnnouncement {
- fn encode(&self) -> Vec<u8> {
- let features = self.features.encode();
- let mut res = Vec::with_capacity(172 + features.len() + self.excess_data.len());
- res.extend_from_slice(&features[..]);
- res.extend_from_slice(&self.chain_hash[..]);
- res.extend_from_slice(&byte_utils::be64_to_array(self.short_channel_id));
- res.extend_from_slice(&self.node_id_1.serialize());
- res.extend_from_slice(&self.node_id_2.serialize());
- res.extend_from_slice(&self.bitcoin_key_1.serialize());
- res.extend_from_slice(&self.bitcoin_key_2.serialize());
- res.extend_from_slice(&self.excess_data[..]);
- res
- }
-}
-
-impl MsgDecodable for ChannelAnnouncement {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 64*4 {
- return Err(DecodeError::ShortRead);
- }
- let secp_ctx = Secp256k1::without_caps();
- Ok(Self {
- node_signature_1: secp_signature!(&secp_ctx, &v[0..64]),
- node_signature_2: secp_signature!(&secp_ctx, &v[64..128]),
- bitcoin_signature_1: secp_signature!(&secp_ctx, &v[128..192]),
- bitcoin_signature_2: secp_signature!(&secp_ctx, &v[192..256]),
- contents: UnsignedChannelAnnouncement::decode(&v[256..])?,
- })
- }
-}
-impl MsgEncodable for ChannelAnnouncement {
- fn encode(&self) -> Vec<u8> {
- let secp_ctx = Secp256k1::without_caps();
- let contents = self.contents.encode();
- let mut res = Vec::with_capacity(64 + contents.len());
- res.extend_from_slice(&self.node_signature_1.serialize_compact(&secp_ctx));
- res.extend_from_slice(&self.node_signature_2.serialize_compact(&secp_ctx));
- res.extend_from_slice(&self.bitcoin_signature_1.serialize_compact(&secp_ctx));
- res.extend_from_slice(&self.bitcoin_signature_2.serialize_compact(&secp_ctx));
- res.extend_from_slice(&contents);
- res
- }
-}
-
-impl MsgDecodable for UnsignedChannelUpdate {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32+8+4+2+2+8+4+4 {
- return Err(DecodeError::ShortRead);
- }
- let mut excess_data = Vec::with_capacity(v.len() - 64);
- excess_data.extend_from_slice(&v[64..]);
- Ok(Self {
- chain_hash: deserialize(&v[0..32]).unwrap(),
- short_channel_id: byte_utils::slice_to_be64(&v[32..40]),
- timestamp: byte_utils::slice_to_be32(&v[40..44]),
- flags: byte_utils::slice_to_be16(&v[44..46]),
- cltv_expiry_delta: byte_utils::slice_to_be16(&v[46..48]),
- htlc_minimum_msat: byte_utils::slice_to_be64(&v[48..56]),
- fee_base_msat: byte_utils::slice_to_be32(&v[56..60]),
- fee_proportional_millionths: byte_utils::slice_to_be32(&v[60..64]),
- excess_data
- })
- }
-}
-impl MsgEncodable for UnsignedChannelUpdate {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(64 + self.excess_data.len());
- res.extend_from_slice(&self.chain_hash[..]);
- res.extend_from_slice(&byte_utils::be64_to_array(self.short_channel_id));
- res.extend_from_slice(&byte_utils::be32_to_array(self.timestamp));
- res.extend_from_slice(&byte_utils::be16_to_array(self.flags));
- res.extend_from_slice(&byte_utils::be16_to_array(self.cltv_expiry_delta));
- res.extend_from_slice(&byte_utils::be64_to_array(self.htlc_minimum_msat));
- res.extend_from_slice(&byte_utils::be32_to_array(self.fee_base_msat));
- res.extend_from_slice(&byte_utils::be32_to_array(self.fee_proportional_millionths));
- res.extend_from_slice(&self.excess_data[..]);
- res
- }
-}
-
-impl MsgDecodable for ChannelUpdate {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 128 {
- return Err(DecodeError::ShortRead);
- }
- let secp_ctx = Secp256k1::without_caps();
- Ok(Self {
- signature: secp_signature!(&secp_ctx, &v[0..64]),
- contents: UnsignedChannelUpdate::decode(&v[64..])?,
- })
- }
-}
-impl MsgEncodable for ChannelUpdate {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(128);
- res.extend_from_slice(&self.signature.serialize_compact(&Secp256k1::without_caps())[..]);
- res.extend_from_slice(&self.contents.encode()[..]);
- res
- }
-}
-
-impl MsgDecodable for OnionRealm0HopData {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32 {
- return Err(DecodeError::ShortRead);
- }
- Ok(OnionRealm0HopData {
- short_channel_id: byte_utils::slice_to_be64(&v[0..8]),
- amt_to_forward: byte_utils::slice_to_be64(&v[8..16]),
- outgoing_cltv_value: byte_utils::slice_to_be32(&v[16..20]),
- })
- }
-}
-impl MsgEncodable for OnionRealm0HopData {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32);
- res.extend_from_slice(&byte_utils::be64_to_array(self.short_channel_id));
- res.extend_from_slice(&byte_utils::be64_to_array(self.amt_to_forward));
- res.extend_from_slice(&byte_utils::be32_to_array(self.outgoing_cltv_value));
- res.resize(32, 0);
- res
- }
-}
-
-impl MsgDecodable for OnionHopData {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 65 {
- return Err(DecodeError::ShortRead);
- }
- let realm = v[0];
- if realm != 0 {
- return Err(DecodeError::UnknownRealmByte);
- }
- let mut hmac = [0; 32];
- hmac[..].copy_from_slice(&v[33..65]);
- Ok(OnionHopData {
- realm: realm,
- data: OnionRealm0HopData::decode(&v[1..33])?,
- hmac: hmac,
- })
- }
-}
-impl MsgEncodable for OnionHopData {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(65);
- res.push(self.realm);
- res.extend_from_slice(&self.data.encode()[..]);
- res.extend_from_slice(&self.hmac);
- res
- }
-}
-
-impl MsgDecodable for OnionPacket {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 1+33+20*65+32 {
- return Err(DecodeError::ShortRead);
- }
- let mut hop_data = [0; 20*65];
- hop_data.copy_from_slice(&v[34..1334]);
- let mut hmac = [0; 32];
- hmac.copy_from_slice(&v[1334..1366]);
- let secp_ctx = Secp256k1::without_caps();
- Ok(Self {
- version: v[0],
- public_key: PublicKey::from_slice(&secp_ctx, &v[1..34]),
- hop_data,
- hmac,
- })
- }
-}
-impl MsgEncodable for OnionPacket {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(1 + 33 + 20*65 + 32);
- res.push(self.version);
- match self.public_key {
- Ok(pubkey) => res.extend_from_slice(&pubkey.serialize()),
- Err(_) => res.extend_from_slice(&[0; 33]),
- }
- res.extend_from_slice(&self.hop_data);
- res.extend_from_slice(&self.hmac);
- res
- }
-}
-
-impl MsgDecodable for DecodedOnionErrorPacket {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 32 + 4 {
- return Err(DecodeError::ShortRead);
- }
- let failuremsg_len = byte_utils::slice_to_be16(&v[32..34]) as usize;
- if v.len() < 32 + 4 + failuremsg_len {
- return Err(DecodeError::ShortRead);
- }
- let padding_len = byte_utils::slice_to_be16(&v[34 + failuremsg_len..]) as usize;
- if v.len() < 32 + 4 + failuremsg_len + padding_len {
- return Err(DecodeError::ShortRead);
- }
-
- let mut hmac = [0; 32];
- hmac.copy_from_slice(&v[0..32]);
- Ok(Self {
- hmac,
- failuremsg: v[34..34 + failuremsg_len].to_vec(),
- pad: v[36 + failuremsg_len..36 + failuremsg_len + padding_len].to_vec(),
- })
- }
-}
-impl MsgEncodable for DecodedOnionErrorPacket {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(32 + 4 + self.failuremsg.len() + self.pad.len());
- res.extend_from_slice(&self.hmac);
- res.extend_from_slice(&[((self.failuremsg.len() >> 8) & 0xff) as u8, (self.failuremsg.len() & 0xff) as u8]);
- res.extend_from_slice(&self.failuremsg);
- res.extend_from_slice(&[((self.pad.len() >> 8) & 0xff) as u8, (self.pad.len() & 0xff) as u8]);
- res.extend_from_slice(&self.pad);
- res
- }
-}
-
-impl MsgDecodable for OnionErrorPacket {
- fn decode(v: &[u8]) -> Result<Self, DecodeError> {
- if v.len() < 2 {
- return Err(DecodeError::ShortRead);
- }
- let len = byte_utils::slice_to_be16(&v[0..2]) as usize;
- if v.len() < 2 + len {
- return Err(DecodeError::ShortRead);
- }
- Ok(Self {
- data: v[2..len+2].to_vec(),
- })
- }
-}
-impl MsgEncodable for OnionErrorPacket {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(2 + self.data.len());
- res.extend_from_slice(&byte_utils::be16_to_array(self.data.len() as u16));
- res.extend_from_slice(&self.data);
- res
- }
-}
-
-impl MsgEncodable for ErrorMessage {
- fn encode(&self) -> Vec<u8> {
- let mut res = Vec::with_capacity(34 + self.data.len());
- res.extend_from_slice(&self.channel_id);
- res.extend_from_slice(&byte_utils::be16_to_array(self.data.len() as u16));
- res.extend_from_slice(&self.data.as_bytes());
- res
- }
-}
-impl MsgDecodable for ErrorMessage {
- fn decode(v: &[u8]) -> Result<Self,DecodeError> {
- if v.len() < 34 {
- return Err(DecodeError::ShortRead);
- }
- // Unlike most messages, BOLT 1 requires we truncate our read if the value is out of range
- let len = cmp::min(byte_utils::slice_to_be16(&v[32..34]) as usize, v.len() - 34);
- let data = match String::from_utf8(v[34..34 + len].to_vec()) {
- Ok(s) => s,
- Err(_) => return Err(DecodeError::BadText),
- };
- let mut channel_id = [0; 32];
- channel_id[..].copy_from_slice(&v[0..32]);
- Ok(Self {
- channel_id,
- data,
- })
- }
-}
-
-impl_writeable!(AcceptChannel, {
- temporary_channel_id,
- dust_limit_satoshis,
- max_htlc_value_in_flight_msat,
- channel_reserve_satoshis,
- htlc_minimum_msat,
- minimum_depth,
- to_self_delay,
- max_accepted_htlcs,
- funding_pubkey,
- revocation_basepoint,
- payment_basepoint,
- delayed_payment_basepoint,
- htlc_basepoint,
- first_per_commitment_point,
- shutdown_scriptpubkey
-});
-
-impl_writeable!(AnnouncementSignatures, {
- channel_id,
- short_channel_id,
- node_signature,
- bitcoin_signature
-});
-
-impl<W: ::std::io::Write> Writeable<W> for ChannelReestablish {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
- self.channel_id.write(w)?;
- self.next_local_commitment_number.write(w)?;
- self.next_remote_commitment_number.write(w)?;
- if let Some(ref data_loss_protect) = self.data_loss_protect {
- data_loss_protect.your_last_per_commitment_secret.write(w)?;
- data_loss_protect.my_current_per_commitment_point.write(w)?;
- }
- Ok(())
- }
-}
-
-impl<R: ::std::io::Read> Readable<R> for ChannelReestablish{
- fn read(r: &mut Reader<R>) -> Result<Self, DecodeError> {
- Ok(Self {
- channel_id: Readable::read(r)?,
- next_local_commitment_number: Readable::read(r)?,
- next_remote_commitment_number: Readable::read(r)?,
- data_loss_protect: {
- match <[u8; 32] as Readable<R>>::read(r) {
- Ok(your_last_per_commitment_secret) =>
- Some(DataLossProtect {
- your_last_per_commitment_secret,
- my_current_per_commitment_point: Readable::read(r)?,
- }),
- Err(DecodeError::ShortRead) => None,
- Err(e) => return Err(e)
- }
- }
- })
- }
-}
-
-impl_writeable!(ClosingSigned, {
- channel_id,
- fee_satoshis,
- signature
-});
-
-impl_writeable!(CommitmentSigned, {
- channel_id,
- signature,
- htlc_signatures
-});
-
-impl_writeable!(DecodedOnionErrorPacket, {
- hmac,
- failuremsg,
- pad
-});
-
-impl_writeable!(FundingCreated, {
- temporary_channel_id,
- funding_txid,
- funding_output_index,
- signature
-});
-
-impl_writeable!(FundingSigned, {
- channel_id,
- signature
-});
-
-impl_writeable!(FundingLocked, {
- channel_id,
- next_per_commitment_point
-});
-
-impl_writeable!(GlobalFeatures, {
- flags
-});
-
-impl_writeable!(LocalFeatures, {
- flags
-});
-
-impl_writeable!(Init, {
- global_features,
- local_features
-});
-
-impl_writeable!(OpenChannel, {
- chain_hash,
- temporary_channel_id,
- funding_satoshis,
- push_msat,
- dust_limit_satoshis,
- max_htlc_value_in_flight_msat,
- channel_reserve_satoshis,
- htlc_minimum_msat,
- feerate_per_kw,
- to_self_delay,
- max_accepted_htlcs,
- funding_pubkey,
- revocation_basepoint,
- payment_basepoint,
- delayed_payment_basepoint,
- htlc_basepoint,
- first_per_commitment_point,
- channel_flags,
- shutdown_scriptpubkey
-});
-
-impl_writeable!(RevokeAndACK, {
- channel_id,
- per_commitment_secret,
- next_per_commitment_point
-});
-
-impl_writeable!(Shutdown, {
- channel_id,
- scriptpubkey
-});
-
-impl_writeable!(UpdateFailHTLC, {
- channel_id,
- htlc_id,
- reason
-});
-
-impl_writeable!(UpdateFailMalformedHTLC, {
- channel_id,
- htlc_id,
- sha256_of_onion,
- failure_code
-});
-
-impl_writeable!(UpdateFee, {
- channel_id,
- feerate_per_kw
-});
-
-impl_writeable!(UpdateFulfillHTLC, {
- channel_id,
- htlc_id,
- payment_preimage
-});
-
-impl_writeable!(OnionErrorPacket, {
- data
-});
-
-impl<W: ::std::io::Write> Writeable<W> for OnionPacket {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
- self.version.write(w)?;
- match self.public_key {
- Ok(pubkey) => pubkey.write(w)?,
- Err(_) => [0u8;33].write(w)?,
- }
- w.write_all(&self.hop_data)?;
- self.hmac.write(w)?;
- Ok(())
- }
-}
-
-impl<R: ::std::io::Read> Readable<R> for OnionPacket {
- fn read(r: &mut Reader<R>) -> Result<Self, DecodeError> {
- Ok(OnionPacket {
- version: Readable::read(r)?,
- public_key: {
- let mut buf = [0u8;33];
- r.read_exact(&mut buf)?;
- PublicKey::from_slice(&Secp256k1::without_caps(), &buf)
- },
- hop_data: Readable::read(r)?,
- hmac: Readable::read(r)?,
- })
- }
-}
-
-impl_writeable!(UpdateAddHTLC, {
- channel_id,
- htlc_id,
- amount_msat,
- payment_hash,
- cltv_expiry,
- onion_routing_packet
-});
-
-impl<W: ::std::io::Write> Writeable<W> for OnionRealm0HopData {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
- self.short_channel_id.write(w)?;
- self.amt_to_forward.write(w)?;
- self.outgoing_cltv_value.write(w)?;
- w.write_all(&[0;12])?;
- Ok(())
- }
-}
-
-impl<R: ::std::io::Read> Readable<R> for OnionRealm0HopData {
- fn read(r: &mut Reader<R>) -> Result<Self, DecodeError> {
- Ok(OnionRealm0HopData {
- short_channel_id: Readable::read(r)?,
- amt_to_forward: Readable::read(r)?,
- outgoing_cltv_value: {
- let v: u32 = Readable::read(r)?;
- r.read_exact(&mut [0; 12])?;
- v
- }
- })
- }
-}
-
-impl<W: ::std::io::Write> Writeable<W> for OnionHopData {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
- self.realm.write(w)?;
- self.data.write(w)?;
- self.hmac.write(w)?;
- Ok(())
- }
-}
-
-impl<R: ::std::io::Read> Readable<R> for OnionHopData {
- fn read(r: &mut Reader<R>) -> Result<Self, DecodeError> {
- Ok(OnionHopData {
- realm: {
- let r: u8 = Readable::read(r)?;
- if r != 0 {
- return Err(DecodeError::UnknownRealmByte);
- }
- r
- },
- data: Readable::read(r)?,
- hmac: Readable::read(r)?,
- })
- }
-}
-
-impl<W: ::std::io::Write> Writeable<W> for Ping {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
- self.ponglen.write(w)?;
- vec![0u8; self.byteslen as usize].write(w)?; // size-unchecked write
- Ok(())
- }
-}
-
-impl<R: ::std::io::Read> Readable<R> for Ping {
- fn read(r: &mut Reader<R>) -> Result<Self, DecodeError> {
- Ok(Ping {
- ponglen: Readable::read(r)?,
- byteslen: {
- let byteslen = Readable::read(r)?;
- r.read_exact(&mut vec![0u8; byteslen as usize][..])?;
- byteslen
- }
- })
- }
-}
-
-impl<W: ::std::io::Write> Writeable<W> for Pong {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
- vec![0u8; self.byteslen as usize].write(w)?; // size-unchecked write
- Ok(())
- }
-}
-
-impl<R: ::std::io::Read> Readable<R> for Pong {
- fn read(r: &mut Reader<R>) -> Result<Self, DecodeError> {
- Ok(Pong {
- byteslen: {
- let byteslen = Readable::read(r)?;
- r.read_exact(&mut vec![0u8; byteslen as usize][..])?;
- byteslen
- }
- })
- }
-}
-
-impl<W: ::std::io::Write> Writeable<W> for UnsignedChannelAnnouncement {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
- self.features.write(w)?;
- self.chain_hash.write(w)?;
- self.short_channel_id.write(w)?;
- self.node_id_1.write(w)?;
- self.node_id_2.write(w)?;
- self.bitcoin_key_1.write(w)?;
- self.bitcoin_key_2.write(w)?;
- w.write_all(&self.excess_data[..])?;
- Ok(())
- }
-}
-
-impl<R: ::std::io::Read> Readable<R> for UnsignedChannelAnnouncement {
- fn read(r: &mut Reader<R>) -> Result<Self, DecodeError> {
- Ok(Self {
- features: {
- let f: GlobalFeatures = Readable::read(r)?;
- if f.requires_unknown_bits() {
- return Err(DecodeError::UnknownRequiredFeature);
- }
- f
- },
- chain_hash: Readable::read(r)?,
- short_channel_id: Readable::read(r)?,
- node_id_1: Readable::read(r)?,
- node_id_2: Readable::read(r)?,
- bitcoin_key_1: Readable::read(r)?,
- bitcoin_key_2: Readable::read(r)?,
- excess_data: {
- let mut excess_data = vec![];
- r.read_to_end(&mut excess_data)?;
- excess_data
- },
- })
- }
-}
-
-impl_writeable!(ChannelAnnouncement,{
- node_signature_1,
- node_signature_2,
- bitcoin_signature_1,
- bitcoin_signature_2,
- contents
-});
-
-impl<W: ::std::io::Write> Writeable<W> for UnsignedChannelUpdate {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
- self.chain_hash.write(w)?;
- self.short_channel_id.write(w)?;
- self.timestamp.write(w)?;
- self.flags.write(w)?;
- self.cltv_expiry_delta.write(w)?;
- self.htlc_minimum_msat.write(w)?;
- self.fee_base_msat.write(w)?;
- self.fee_proportional_millionths.write(w)?;
- w.write_all(&self.excess_data[..])?;
- Ok(())
- }
-}
-
-impl<R: ::std::io::Read> Readable<R> for UnsignedChannelUpdate {
- fn read(r: &mut Reader<R>) -> Result<Self, DecodeError> {
- Ok(Self {
- chain_hash: Readable::read(r)?,
- short_channel_id: Readable::read(r)?,
- timestamp: Readable::read(r)?,
- flags: Readable::read(r)?,
- cltv_expiry_delta: Readable::read(r)?,
- htlc_minimum_msat: Readable::read(r)?,
- fee_base_msat: Readable::read(r)?,
- fee_proportional_millionths: Readable::read(r)?,
- excess_data: {
- let mut excess_data = vec![];
- r.read_to_end(&mut excess_data)?;
- excess_data
- },
- })
- }
-}
-
-impl_writeable!(ChannelUpdate, {
- signature,
- contents
-});
-
-impl<W: ::std::io::Write> Writeable<W> for ErrorMessage {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
- self.channel_id.write(w)?;
- self.data.as_bytes().to_vec().write(w)?; // write with size prefix
- Ok(())
- }
-}
-
-impl<R: ::std::io::Read> Readable<R> for ErrorMessage {
- fn read(r: &mut Reader<R>) -> Result<Self, DecodeError> {
- Ok(Self {
- channel_id: Readable::read(r)?,
- data: {
- let mut sz: usize = <u16 as Readable<R>>::read(r)? as usize;
- let mut data = vec![];
- let data_len = r.read_to_end(&mut data)?;
- sz = cmp::min(data_len, sz);
- match String::from_utf8(data[..sz as usize].to_vec()) {
- Ok(s) => s,
- Err(_) => return Err(DecodeError::BadText),
- }
- }
- })
- }
-}
-
-impl<W: ::std::io::Write> Writeable<W> for UnsignedNodeAnnouncement {
- fn write(&self, w: &mut Writer<W>) -> Result<(), DecodeError> {
- self.features.write(w)?;
- self.timestamp.write(w)?;
- self.node_id.write(w)?;
- w.write_all(&self.rgb)?;
- self.alias.write(w)?;
-
- let mut addr_slice = Vec::with_capacity(self.addresses.len() * 18);
- let mut addrs_to_encode = self.addresses.clone();
- addrs_to_encode.sort_unstable_by(|a, b| { a.get_id().cmp(&b.get_id()) });
- addrs_to_encode.dedup_by(|a, b| { a.get_id() == b.get_id() });
- for addr in addrs_to_encode.iter() {
- match addr {
- &NetAddress::IPv4{addr, port} => {
- addr_slice.push(1);
- addr_slice.extend_from_slice(&addr);
- addr_slice.extend_from_slice(&byte_utils::be16_to_array(port));
- },
- &NetAddress::IPv6{addr, port} => {
- addr_slice.push(2);
- addr_slice.extend_from_slice(&addr);
- addr_slice.extend_from_slice(&byte_utils::be16_to_array(port));
- },
- &NetAddress::OnionV2{addr, port} => {
- addr_slice.push(3);
- addr_slice.extend_from_slice(&addr);
- addr_slice.extend_from_slice(&byte_utils::be16_to_array(port));
- },
- &NetAddress::OnionV3{ed25519_pubkey, checksum, version, port} => {
- addr_slice.push(4);
- addr_slice.extend_from_slice(&ed25519_pubkey);
- addr_slice.extend_from_slice(&byte_utils::be16_to_array(checksum));
- addr_slice.push(version);
- addr_slice.extend_from_slice(&byte_utils::be16_to_array(port));
- },
- }
- }
- ((addr_slice.len() + self.excess_address_data.len()) as u16).write(w)?;
- w.write_all(&addr_slice[..])?;
- w.write_all(&self.excess_address_data[..])?;
- w.write_all(&self.excess_data[..])?;
- Ok(())
- }
-}
-
-impl<R: ::std::io::Read> Readable<R> for UnsignedNodeAnnouncement {
- fn read(r: &mut Reader<R>) -> Result<Self, DecodeError> {
- let features: GlobalFeatures = Readable::read(r)?;
- if features.requires_unknown_bits() {
- return Err(DecodeError::UnknownRequiredFeature);
- }
- let timestamp: u32 = Readable::read(r)?;
- let node_id: PublicKey = Readable::read(r)?;
- let mut rgb = [0; 3];
- r.read_exact(&mut rgb)?;
- let alias: [u8; 32] = Readable::read(r)?;
-
- let addrlen: u16 = Readable::read(r)?;
- let mut addr_readpos = 0;
- let mut addresses = Vec::with_capacity(4);
- let mut f: u8 = 0;
- let mut excess = 0;
- loop {
- if addrlen <= addr_readpos { break; }
- f = Readable::read(r)?;
- match f {
- 1 => {
- if addresses.len() > 0 {
- return Err(DecodeError::ExtraAddressesPerType);
- }
- if addrlen < addr_readpos + 1 + 6 {
- return Err(DecodeError::BadLengthDescriptor);
- }
- addresses.push(NetAddress::IPv4 {
- addr: {
- let mut addr = [0; 4];
- r.read_exact(&mut addr)?;
- addr
- },
- port: Readable::read(r)?,
- });
- addr_readpos += 1 + 6
- },
- 2 => {
- if addresses.len() > 1 || (addresses.len() == 1 && addresses[0].get_id() != 1) {
- return Err(DecodeError::ExtraAddressesPerType);
- }
- if addrlen < addr_readpos + 1 + 18 {
- return Err(DecodeError::BadLengthDescriptor);
- }
- addresses.push(NetAddress::IPv6 {
- addr: {
- let mut addr = [0; 16];
- r.read_exact(&mut addr)?;
- addr
- },
- port: Readable::read(r)?,
- });
- addr_readpos += 1 + 18
- },
- 3 => {
- if addresses.len() > 2 || (addresses.len() > 0 && addresses.last().unwrap().get_id() > 2) {
- return Err(DecodeError::ExtraAddressesPerType);
- }
- if addrlen < addr_readpos + 1 + 12 {
- return Err(DecodeError::BadLengthDescriptor);
- }
- addresses.push(NetAddress::OnionV2 {
- addr: {
- let mut addr = [0; 10];
- r.read_exact(&mut addr)?;
- addr
- },
- port: Readable::read(r)?,
- });
- addr_readpos += 1 + 12
- },
- 4 => {
- if addresses.len() > 3 || (addresses.len() > 0 && addresses.last().unwrap().get_id() > 3) {
- return Err(DecodeError::ExtraAddressesPerType);
- }
- if addrlen < addr_readpos + 1 + 37 {
- return Err(DecodeError::BadLengthDescriptor);
- }
- addresses.push(NetAddress::OnionV3 {
- ed25519_pubkey: Readable::read(r)?,
- checksum: Readable::read(r)?,
- version: Readable::read(r)?,
- port: Readable::read(r)?,
- });
- addr_readpos += 1 + 37
- },
- _ => { excess = 1; break; }
- }
- }
-
- let mut excess_data = vec![];
- let excess_address_data = if addr_readpos < addrlen {
- let mut excess_address_data = vec![0; (addrlen - addr_readpos) as usize];
- r.read_exact(&mut excess_address_data[excess..])?;
- if excess == 1 {
- excess_address_data[0] = f;
- }
- excess_address_data
- } else {
- if excess == 1 {
- excess_data.push(f);
- }
- Vec::new()
- };
-
- Ok(UnsignedNodeAnnouncement {
- features: features,
- timestamp: timestamp,
- node_id: node_id,
- rgb: rgb,
- alias: alias,
- addresses: addresses,
- excess_address_data: excess_address_data,
- excess_data: {
- r.read_to_end(&mut excess_data)?;
- excess_data
- },
- })
- }
-}
-
-impl_writeable!(NodeAnnouncement, {
- signature,
- contents
-});
-
-#[cfg(test)]
-mod tests {
- use hex;
- use ln::msgs::MsgEncodable;
- use ln::msgs;
- use secp256k1::key::{PublicKey,SecretKey};
- use secp256k1::Secp256k1;
-
- #[test]
- fn encoding_channel_reestablish_no_secret() {
- let cr = msgs::ChannelReestablish {
- 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],
- next_local_commitment_number: 3,
- next_remote_commitment_number: 4,
- data_loss_protect: None,
- };
-
- let encoded_value = cr.encode();
- assert_eq!(
- encoded_value,
- 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]
- );
- }
-
- #[test]
- fn encoding_channel_reestablish_with_secret() {
- let public_key = {
- let secp_ctx = Secp256k1::new();
- PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&secp_ctx, &hex::decode("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap())
- };
-
- let cr = msgs::ChannelReestablish {
- 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],
- next_local_commitment_number: 3,
- next_remote_commitment_number: 4,
- data_loss_protect: Some(msgs::DataLossProtect { your_last_per_commitment_secret: [9;32], my_current_per_commitment_point: public_key}),
- };
-
- let encoded_value = cr.encode();
- assert_eq!(
- encoded_value,
- 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]
- );
- }
-}
projects / rust-lightning / blobdiff