use bitcoin::secp256k1::ecdh::SharedSecret;
use crate::blinded_path::BlindedPath;
-use crate::blinded_path::message::{ForwardTlvs, ReceiveTlvs};
+use crate::blinded_path::message::{ForwardTlvs, NextHop, ReceiveTlvs};
use crate::blinded_path::utils::Padding;
use crate::ln::msgs::DecodeError;
use crate::ln::onion_utils;
use super::messenger::CustomOnionMessageHandler;
use super::offers::OffersMessage;
-use crate::util::chacha20poly1305rfc::{ChaChaPolyReadAdapter, ChaChaPolyWriteAdapter};
+use crate::crypto::streams::{ChaChaPolyReadAdapter, ChaChaPolyWriteAdapter};
use crate::util::logger::Logger;
use crate::util::ser::{BigSize, FixedLengthReader, LengthRead, LengthReadable, LengthReadableArgs, Readable, ReadableArgs, Writeable, Writer};
pub(super) const BIG_PACKET_HOP_DATA_LEN: usize = 32768;
/// Packet of hop data for next peer
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
pub struct Packet {
/// Bolt 04 version number
pub version: u8,
/// Onion message payloads contain "control" TLVs and "data" TLVs. Control TLVs are used to route
/// the onion message from hop to hop and for path verification, whereas data TLVs contain the onion
/// message content itself, such as an invoice request.
-pub(super) enum Payload<T: CustomOnionMessageContents> {
+pub(super) enum Payload<T: OnionMessageContents> {
/// This payload is for an intermediate hop.
Forward(ForwardControlTlvs),
/// This payload is for the final hop.
Receive {
control_tlvs: ReceiveControlTlvs,
reply_path: Option<BlindedPath>,
- message: OnionMessageContents<T>,
+ message: T,
}
}
+/// The contents of an [`OnionMessage`] as read from the wire.
+///
+/// [`OnionMessage`]: crate::ln::msgs::OnionMessage
#[derive(Debug)]
-/// The contents of an onion message. In the context of offers, this would be the invoice, invoice
-/// request, or invoice error.
-pub enum OnionMessageContents<T: CustomOnionMessageContents> {
+pub enum ParsedOnionMessageContents<T: OnionMessageContents> {
/// A message related to BOLT 12 Offers.
Offers(OffersMessage),
/// A custom onion message specified by the user.
Custom(T),
}
-impl<T: CustomOnionMessageContents> OnionMessageContents<T> {
+impl<T: OnionMessageContents> OnionMessageContents for ParsedOnionMessageContents<T> {
/// Returns the type that was used to decode the message payload.
///
/// This is not exported to bindings users as methods on non-cloneable enums are not currently exportable
- pub fn tlv_type(&self) -> u64 {
+ fn tlv_type(&self) -> u64 {
match self {
- &OnionMessageContents::Offers(ref msg) => msg.tlv_type(),
- &OnionMessageContents::Custom(ref msg) => msg.tlv_type(),
+ &ParsedOnionMessageContents::Offers(ref msg) => msg.tlv_type(),
+ &ParsedOnionMessageContents::Custom(ref msg) => msg.tlv_type(),
}
}
}
-/// This is not exported to bindings users as methods on non-cloneable enums are not currently exportable
-impl<T: CustomOnionMessageContents> Writeable for OnionMessageContents<T> {
+impl<T: OnionMessageContents> Writeable for ParsedOnionMessageContents<T> {
fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
match self {
- OnionMessageContents::Offers(msg) => Ok(msg.write(w)?),
- OnionMessageContents::Custom(msg) => Ok(msg.write(w)?),
+ ParsedOnionMessageContents::Offers(msg) => Ok(msg.write(w)?),
+ ParsedOnionMessageContents::Custom(msg) => Ok(msg.write(w)?),
}
}
}
-/// The contents of a custom onion message.
-pub trait CustomOnionMessageContents: Writeable {
+/// The contents of an onion message.
+pub trait OnionMessageContents: Writeable + core::fmt::Debug {
/// Returns the TLV type identifying the message contents. MUST be >= 64.
fn tlv_type(&self) -> u64;
}
}
// Uses the provided secret to simultaneously encode and encrypt the unblinded control TLVs.
-impl<T: CustomOnionMessageContents> Writeable for (Payload<T>, [u8; 32]) {
+impl<T: OnionMessageContents> Writeable for (Payload<T>, [u8; 32]) {
fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
match &self.0 {
Payload::Forward(ForwardControlTlvs::Blinded(encrypted_bytes)) => {
}
// Uses the provided secret to simultaneously decode and decrypt the control TLVs and data TLV.
-impl<H: CustomOnionMessageHandler + ?Sized, L: Logger + ?Sized>
-ReadableArgs<(SharedSecret, &H, &L)> for Payload<<H as CustomOnionMessageHandler>::CustomMessage> {
+impl<H: CustomOnionMessageHandler + ?Sized, L: Logger + ?Sized> ReadableArgs<(SharedSecret, &H, &L)>
+for Payload<ParsedOnionMessageContents<<H as CustomOnionMessageHandler>::CustomMessage>> {
fn read<R: Read>(r: &mut R, args: (SharedSecret, &H, &L)) -> Result<Self, DecodeError> {
let (encrypted_tlvs_ss, handler, logger) = args;
match msg_type {
tlv_type if OffersMessage::is_known_type(tlv_type) => {
let msg = OffersMessage::read(msg_reader, (tlv_type, logger))?;
- message = Some(OnionMessageContents::Offers(msg));
+ message = Some(ParsedOnionMessageContents::Offers(msg));
Ok(true)
},
_ => match handler.read_custom_message(msg_type, msg_reader)? {
Some(msg) => {
- message = Some(OnionMessageContents::Custom(msg));
+ message = Some(ParsedOnionMessageContents::Custom(msg));
Ok(true)
},
None => Ok(false),
fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
_init_and_read_tlv_stream!(r, {
(1, _padding, option),
- (2, _short_channel_id, option),
+ (2, short_channel_id, option),
(4, next_node_id, option),
(6, path_id, option),
(8, next_blinding_override, option),
});
let _padding: Option<Padding> = _padding;
- let _short_channel_id: Option<u64> = _short_channel_id;
- let valid_fwd_fmt = next_node_id.is_some() && path_id.is_none();
- let valid_recv_fmt = next_node_id.is_none() && next_blinding_override.is_none();
+ let next_hop = match (short_channel_id, next_node_id) {
+ (Some(_), Some(_)) => return Err(DecodeError::InvalidValue),
+ (Some(scid), None) => Some(NextHop::ShortChannelId(scid)),
+ (None, Some(pubkey)) => Some(NextHop::NodeId(pubkey)),
+ (None, None) => None,
+ };
+
+ let valid_fwd_fmt = next_hop.is_some() && path_id.is_none();
+ let valid_recv_fmt = next_hop.is_none() && next_blinding_override.is_none();
let payload_fmt = if valid_fwd_fmt {
ControlTlvs::Forward(ForwardTlvs {
- next_node_id: next_node_id.unwrap(),
+ next_hop: next_hop.unwrap(),
next_blinding_override,
})
} else if valid_recv_fmt {
projects / rust-lightning / blobdiff