use bitcoin::hashes::sha256::Hash as Sha256;
use bitcoin::secp256k1::{self, PublicKey, Scalar, Secp256k1, SecretKey};
use bitcoin::hashes::sha256::Hash as Sha256;
use bitcoin::secp256k1::{self, PublicKey, Scalar, Secp256k1, SecretKey};
-use crate::chain::keysinterface::{KeysInterface, KeysManager, Recipient};
+use crate::chain::keysinterface::{EntropySource, KeysManager, NodeSigner, Recipient};
+use crate::events::OnionMessageProvider;
use crate::ln::features::{InitFeatures, NodeFeatures};
use crate::ln::msgs::{self, OnionMessageHandler};
use crate::ln::onion_utils;
use crate::ln::peer_handler::IgnoringMessageHandler;
use crate::ln::features::{InitFeatures, NodeFeatures};
use crate::ln::msgs::{self, OnionMessageHandler};
use crate::ln::onion_utils;
use crate::ln::peer_handler::IgnoringMessageHandler;
pub use super::packet::{CustomOnionMessageContents, OnionMessageContents};
use super::packet::{BIG_PACKET_HOP_DATA_LEN, ForwardControlTlvs, Packet, Payload, ReceiveControlTlvs, SMALL_PACKET_HOP_DATA_LEN};
use super::utils;
pub use super::packet::{CustomOnionMessageContents, OnionMessageContents};
use super::packet::{BIG_PACKET_HOP_DATA_LEN, ForwardControlTlvs, Packet, Payload, ReceiveControlTlvs, SMALL_PACKET_HOP_DATA_LEN};
use super::utils;
/// # extern crate bitcoin;
/// # use bitcoin::hashes::_export::_core::time::Duration;
/// # use bitcoin::secp256k1::{PublicKey, Secp256k1, SecretKey};
/// # extern crate bitcoin;
/// # use bitcoin::hashes::_export::_core::time::Duration;
/// # use bitcoin::secp256k1::{PublicKey, Secp256k1, SecretKey};
/// # use lightning::ln::peer_handler::IgnoringMessageHandler;
/// # use lightning::onion_message::{BlindedPath, CustomOnionMessageContents, Destination, OnionMessageContents, OnionMessenger};
/// # use lightning::util::logger::{Logger, Record};
/// # use lightning::util::ser::{Writeable, Writer};
/// # use lightning::io;
/// # use std::sync::Arc;
/// # use lightning::ln::peer_handler::IgnoringMessageHandler;
/// # use lightning::onion_message::{BlindedPath, CustomOnionMessageContents, Destination, OnionMessageContents, OnionMessenger};
/// # use lightning::util::logger::{Logger, Record};
/// # use lightning::util::ser::{Writeable, Writer};
/// # use lightning::io;
/// # use std::sync::Arc;
/// # impl Logger for FakeLogger {
/// # fn log(&self, record: &Record) { unimplemented!() }
/// # }
/// # impl Logger for FakeLogger {
/// # fn log(&self, record: &Record) { unimplemented!() }
/// # }
/// # let your_custom_message_handler = IgnoringMessageHandler {};
/// // Create the onion messenger. This must use the same `keys_manager` as is passed to your
/// // ChannelManager.
/// # let your_custom_message_handler = IgnoringMessageHandler {};
/// // Create the onion messenger. This must use the same `keys_manager` as is passed to your
/// // ChannelManager.
-/// let onion_messenger = OnionMessenger::new(&keys_manager, logger, your_custom_message_handler);
+/// let onion_messenger = OnionMessenger::new(&keys_manager, &keys_manager, logger, &your_custom_message_handler);
/// let message = OnionMessageContents::Custom(your_custom_message);
/// onion_messenger.send_onion_message(&intermediate_hops, Destination::Node(destination_node_id), message, reply_path);
///
/// let message = OnionMessageContents::Custom(your_custom_message);
/// onion_messenger.send_onion_message(&intermediate_hops, Destination::Node(destination_node_id), message, reply_path);
///
/// # let your_node_id = hop_node_id1;
/// let hops = [hop_node_id3, hop_node_id4, your_node_id];
/// # let your_node_id = hop_node_id1;
/// let hops = [hop_node_id3, hop_node_id4, your_node_id];
/// # let intermediate_hops = [hop_node_id1, hop_node_id2];
/// let reply_path = None;
/// # let your_custom_message = YourCustomMessage {};
/// let message = OnionMessageContents::Custom(your_custom_message);
/// # let intermediate_hops = [hop_node_id1, hop_node_id2];
/// let reply_path = None;
/// # let your_custom_message = YourCustomMessage {};
/// let message = OnionMessageContents::Custom(your_custom_message);
-/// onion_messenger.send_onion_message(&intermediate_hops, Destination::BlindedPath(blinded_route), message, reply_path);
+/// onion_messenger.send_onion_message(&intermediate_hops, Destination::BlindedPath(blinded_path), message, reply_path);
/// ```
///
/// [offers]: <https://github.com/lightning/bolts/pull/798>
/// [`OnionMessenger`]: crate::onion_message::OnionMessenger
/// ```
///
/// [offers]: <https://github.com/lightning/bolts/pull/798>
/// [`OnionMessenger`]: crate::onion_message::OnionMessenger
-pub struct OnionMessenger<K: Deref, L: Deref, CMH: Deref>
- where K::Target: KeysInterface,
- L::Target: Logger,
- CMH:: Target: CustomOnionMessageHandler,
+pub struct OnionMessenger<ES: Deref, NS: Deref, L: Deref, CMH: Deref>
+ where ES::Target: EntropySource,
+ NS::Target: NodeSigner,
+ L::Target: Logger,
+ CMH:: Target: CustomOnionMessageHandler,
logger: L,
pending_messages: Mutex<HashMap<PublicKey, VecDeque<msgs::OnionMessage>>>,
secp_ctx: Secp256k1<secp256k1::All>,
logger: L,
pending_messages: Mutex<HashMap<PublicKey, VecDeque<msgs::OnionMessage>>>,
secp_ctx: Secp256k1<secp256k1::All>,
- /// We attempted to send to a blinded route where we are the introduction node, and failed to
- /// advance the blinded route to make the second hop the new introduction node. Either
- /// [`KeysInterface::ecdh`] failed, we failed to tweak the current blinding point to get the
+ /// We attempted to send to a blinded path where we are the introduction node, and failed to
+ /// advance the blinded path to make the second hop the new introduction node. Either
+ /// [`NodeSigner::ecdh`] failed, we failed to tweak the current blinding point to get the
/// new blinding point, or we were attempting to send to ourselves.
BlindedPathAdvanceFailed,
}
/// new blinding point, or we were attempting to send to ourselves.
BlindedPathAdvanceFailed,
}
fn read_custom_message<R: io::Read>(&self, message_type: u64, buffer: &mut R) -> Result<Option<Self::CustomMessage>, msgs::DecodeError>;
}
fn read_custom_message<R: io::Read>(&self, message_type: u64, buffer: &mut R) -> Result<Option<Self::CustomMessage>, msgs::DecodeError>;
}
-impl<K: Deref, L: Deref, CMH: Deref> OnionMessenger<K, L, CMH>
- where K::Target: KeysInterface,
- L::Target: Logger,
- CMH::Target: CustomOnionMessageHandler,
+impl<ES: Deref, NS: Deref, L: Deref, CMH: Deref> OnionMessenger<ES, NS, L, CMH>
+ where ES::Target: EntropySource,
+ NS::Target: NodeSigner,
+ L::Target: Logger,
+ CMH::Target: CustomOnionMessageHandler,
{
/// Constructs a new `OnionMessenger` to send, forward, and delegate received onion messages to
/// their respective handlers.
{
/// Constructs a new `OnionMessenger` to send, forward, and delegate received onion messages to
/// their respective handlers.
- pub fn new(keys_manager: K, logger: L, custom_handler: CMH) -> Self {
+ pub fn new(entropy_source: ES, node_signer: NS, logger: L, custom_handler: CMH) -> Self {
let OnionMessageContents::Custom(ref msg) = message;
if msg.tlv_type() < 64 { return Err(SendError::InvalidMessage) }
let OnionMessageContents::Custom(ref msg) = message;
if msg.tlv_type() < 64 { return Err(SendError::InvalidMessage) }
- // If we are sending straight to a blinded route and we are the introduction node, we need to
- // advance the blinded route by 1 hop so the second hop is the new introduction node.
+ // If we are sending straight to a blinded path and we are the introduction node, we need to
+ // advance the blinded path by 1 hop so the second hop is the new introduction node.
- if let Destination::BlindedPath(ref mut blinded_route) = destination {
- let our_node_id = self.keys_manager.get_node_id(Recipient::Node)
+ if let Destination::BlindedPath(ref mut blinded_path) = destination {
+ let our_node_id = self.node_signer.get_node_id(Recipient::Node)
- if blinded_route.introduction_node_id == our_node_id {
- blinded_route.advance_by_one(&self.keys_manager, &self.secp_ctx)
+ if blinded_path.introduction_node_id == our_node_id {
+ blinded_path.advance_by_one(&self.node_signer, &self.secp_ctx)
let blinding_secret = SecretKey::from_slice(&blinding_secret_bytes[..]).expect("RNG is busted");
let (introduction_node_id, blinding_point) = if intermediate_nodes.len() != 0 {
(intermediate_nodes[0], PublicKey::from_secret_key(&self.secp_ctx, &blinding_secret))
let blinding_secret = SecretKey::from_slice(&blinding_secret_bytes[..]).expect("RNG is busted");
let (introduction_node_id, blinding_point) = if intermediate_nodes.len() != 0 {
(intermediate_nodes[0], PublicKey::from_secret_key(&self.secp_ctx, &blinding_secret))
&self.secp_ctx, intermediate_nodes, destination, message, reply_path, &blinding_secret)
.map_err(|e| SendError::Secp256k1(e))?;
&self.secp_ctx, intermediate_nodes, destination, message, reply_path, &blinding_secret)
.map_err(|e| SendError::Secp256k1(e))?;
let onion_routing_packet = construct_onion_message_packet(
packet_payloads, packet_keys, prng_seed).map_err(|()| SendError::TooBigPacket)?;
let onion_routing_packet = construct_onion_message_packet(
packet_payloads, packet_keys, prng_seed).map_err(|()| SendError::TooBigPacket)?;
-impl<K: Deref, L: Deref, CMH: Deref> OnionMessageHandler for OnionMessenger<K, L, CMH>
- where K::Target: KeysInterface,
- L::Target: Logger,
- CMH::Target: CustomOnionMessageHandler + Sized,
+impl<ES: Deref, NS: Deref, L: Deref, CMH: Deref> OnionMessageHandler for OnionMessenger<ES, NS, L, CMH>
+ where ES::Target: EntropySource,
+ NS::Target: NodeSigner,
+ L::Target: Logger,
+ CMH::Target: CustomOnionMessageHandler + Sized,
{
/// Handle an incoming onion message. Currently, if a message was destined for us we will log, but
/// soon we'll delegate the onion message to a handler that can generate invoices or send
/// payments.
fn handle_onion_message(&self, _peer_node_id: &PublicKey, msg: &msgs::OnionMessage) {
{
/// Handle an incoming onion message. Currently, if a message was destined for us we will log, but
/// soon we'll delegate the onion message to a handler that can generate invoices or send
/// payments.
fn handle_onion_message(&self, _peer_node_id: &PublicKey, msg: &msgs::OnionMessage) {
Some(&Scalar::from_be_bytes(blinding_factor).unwrap()))
{
Ok(ss) => ss.secret_bytes(),
Some(&Scalar::from_be_bytes(blinding_factor).unwrap()))
{
Ok(ss) => ss.secret_bytes(),
// TODO: we need to check whether `next_node_id` is our node, in which case this is a dummy
// blinded hop and this onion message is destined for us. In this situation, we should keep
// unwrapping the onion layers to get to the final payload. Since we don't have the option
// TODO: we need to check whether `next_node_id` is our node, in which case this is a dummy
// blinded hop and this onion message is destined for us. In this situation, we should keep
// unwrapping the onion layers to get to the final payload. Since we don't have the option
// for now.
let new_pubkey = match onion_utils::next_hop_packet_pubkey(&self.secp_ctx, msg.onion_routing_packet.public_key, &onion_decode_ss) {
Ok(pk) => pk,
// for now.
let new_pubkey = match onion_utils::next_hop_packet_pubkey(&self.secp_ctx, msg.onion_routing_packet.public_key, &onion_decode_ss) {
Ok(pk) => pk,
- fn peer_connected(&self, their_node_id: &PublicKey, init: &msgs::Init) -> Result<(), ()> {
+ fn peer_connected(&self, their_node_id: &PublicKey, init: &msgs::Init, _inbound: bool) -> Result<(), ()> {
if init.features.supports_onion_messages() {
let mut peers = self.pending_messages.lock().unwrap();
peers.insert(their_node_id.clone(), VecDeque::new());
if init.features.supports_onion_messages() {
let mut peers = self.pending_messages.lock().unwrap();
peers.insert(their_node_id.clone(), VecDeque::new());
-impl<K: Deref, L: Deref, CMH: Deref> OnionMessageProvider for OnionMessenger<K, L, CMH>
- where K::Target: KeysInterface,
- L::Target: Logger,
- CMH::Target: CustomOnionMessageHandler,
+impl<ES: Deref, NS: Deref, L: Deref, CMH: Deref> OnionMessageProvider for OnionMessenger<ES, NS, L, CMH>
+ where ES::Target: EntropySource,
+ NS::Target: NodeSigner,
+ L::Target: Logger,
+ CMH::Target: CustomOnionMessageHandler,
{
fn next_onion_message_for_peer(&self, peer_node_id: PublicKey) -> Option<msgs::OnionMessage> {
let mut pending_msgs = self.pending_messages.lock().unwrap();
{
fn next_onion_message_for_peer(&self, peer_node_id: PublicKey) -> Option<msgs::OnionMessage> {
let mut pending_msgs = self.pending_messages.lock().unwrap();
/// Useful for simplifying the parameters of [`SimpleArcChannelManager`] and
/// [`SimpleArcPeerManager`]. See their docs for more details.
///
/// Useful for simplifying the parameters of [`SimpleArcChannelManager`] and
/// [`SimpleArcPeerManager`]. See their docs for more details.
///
///
/// [`SimpleArcChannelManager`]: crate::ln::channelmanager::SimpleArcChannelManager
/// [`SimpleArcPeerManager`]: crate::ln::peer_handler::SimpleArcPeerManager
///
/// [`SimpleArcChannelManager`]: crate::ln::channelmanager::SimpleArcChannelManager
/// [`SimpleArcPeerManager`]: crate::ln::peer_handler::SimpleArcPeerManager
-pub type SimpleArcOnionMessenger<L> = OnionMessenger<Arc<KeysManager>, Arc<L>, IgnoringMessageHandler>;
+pub type SimpleArcOnionMessenger<L> = OnionMessenger<Arc<KeysManager>, Arc<KeysManager>, Arc<L>, IgnoringMessageHandler>;
/// Useful for simplifying the parameters of [`SimpleRefChannelManager`] and
/// [`SimpleRefPeerManager`]. See their docs for more details.
///
/// Useful for simplifying the parameters of [`SimpleRefChannelManager`] and
/// [`SimpleRefPeerManager`]. See their docs for more details.
///
///
/// [`SimpleRefChannelManager`]: crate::ln::channelmanager::SimpleRefChannelManager
/// [`SimpleRefPeerManager`]: crate::ln::peer_handler::SimpleRefPeerManager
///
/// [`SimpleRefChannelManager`]: crate::ln::channelmanager::SimpleRefChannelManager
/// [`SimpleRefPeerManager`]: crate::ln::peer_handler::SimpleRefPeerManager
-pub type SimpleRefOnionMessenger<'a, 'b, L> = OnionMessenger<&'a KeysManager, &'b L, IgnoringMessageHandler>;
+pub type SimpleRefOnionMessenger<'a, 'b, L> = OnionMessenger<&'a KeysManager, &'a KeysManager, &'b L, IgnoringMessageHandler>;
/// Construct onion packet payloads and keys for sending an onion message along the given
/// `unblinded_path` to the given `destination`.
/// Construct onion packet payloads and keys for sending an onion message along the given
/// `unblinded_path` to the given `destination`.