use core::marker::Sized;
use core::time::Duration;
use crate::ln::msgs::DecodeError;
+#[cfg(taproot)]
+use crate::ln::msgs::PartialSignatureWithNonce;
use crate::ln::{PaymentPreimage, PaymentHash, PaymentSecret};
use crate::util::byte_utils::{be48_to_array, slice_to_be48};
/// A simplified version of [`std::io::Write`] that exists largely for backwards compatibility.
/// An impl is provided for any type that also impls [`std::io::Write`].
///
-/// (C-not exported) as we only export serialization to/from byte arrays instead
+/// This is not exported to bindings users as we only export serialization to/from byte arrays instead
pub trait Writer {
/// Writes the given buf out. See std::io::Write::write_all for more
fn write_all(&mut self, buf: &[u8]) -> Result<(), io::Error>;
/// Writer that only tracks the amount of data written - useful if you need to calculate the length
/// of some data when serialized but don't yet need the full data.
+///
+/// This is not exported to bindings users as manual TLV building is not currently supported in bindings
pub struct LengthCalculatingWriter(pub usize);
impl Writer for LengthCalculatingWriter {
#[inline]
/// Essentially [`std::io::Take`] but a bit simpler and with a method to walk the underlying stream
/// forward to ensure we always consume exactly the fixed length specified.
+///
+/// This is not exported to bindings users as manual TLV building is not currently supported in bindings
pub struct FixedLengthReader<R: Read> {
read: R,
bytes_read: u64,
/// A [`Read`] implementation which tracks whether any bytes have been read at all. This allows us to distinguish
/// between "EOF reached before we started" and "EOF reached mid-read".
+///
+/// This is not exported to bindings users as manual TLV building is not currently supported in bindings
pub struct ReadTrackingReader<R: Read> {
read: R,
/// Returns whether we have read from this reader or not yet.
/// A trait that various LDK types implement allowing them to be written out to a [`Writer`].
///
-/// (C-not exported) as we only export serialization to/from byte arrays instead
+/// This is not exported to bindings users as we only export serialization to/from byte arrays instead
pub trait Writeable {
/// Writes `self` out to the given [`Writer`].
fn write<W: Writer>(&self, writer: &mut W) -> Result<(), io::Error>;
/// A trait that various LDK types implement allowing them to be read in from a [`Read`].
///
-/// (C-not exported) as we only export serialization to/from byte arrays instead
+/// This is not exported to bindings users as we only export serialization to/from byte arrays instead
pub trait Readable
where Self: Sized
{
/// A trait that various higher-level LDK types implement allowing them to be read in
/// from a [`Read`] given some additional set of arguments which is required to deserialize.
///
-/// (C-not exported) as we only export serialization to/from byte arrays instead
+/// This is not exported to bindings users as we only export serialization to/from byte arrays instead
pub trait ReadableArgs<P>
where Self: Sized
{
/// A trait that various LDK types implement allowing them to (maybe) be read in from a [`Read`].
///
-/// (C-not exported) as we only export serialization to/from byte arrays instead
+/// This is not exported to bindings users as we only export serialization to/from byte arrays instead
pub trait MaybeReadable
where Self: Sized
{
}
/// Wrapper to read a required (non-optional) TLV record.
-pub struct OptionDeserWrapper<T: Readable>(pub Option<T>);
-impl<T: Readable> Readable for OptionDeserWrapper<T> {
+///
+/// This is not exported to bindings users as manual TLV building is not currently supported in bindings
+pub struct RequiredWrapper<T>(pub Option<T>);
+impl<T: Readable> Readable for RequiredWrapper<T> {
#[inline]
fn read<R: Read>(reader: &mut R) -> Result<Self, DecodeError> {
Ok(Self(Some(Readable::read(reader)?)))
}
}
+impl<A, T: ReadableArgs<A>> ReadableArgs<A> for RequiredWrapper<T> {
+ #[inline]
+ fn read<R: Read>(reader: &mut R, args: A) -> Result<Self, DecodeError> {
+ Ok(Self(Some(ReadableArgs::read(reader, args)?)))
+ }
+}
/// When handling `default_values`, we want to map the default-value T directly
-/// to a `OptionDeserWrapper<T>` in a way that works for `field: T = t;` as
+/// to a `RequiredWrapper<T>` in a way that works for `field: T = t;` as
/// well. Thus, we assume `Into<T> for T` does nothing and use that.
-impl<T: Readable> From<T> for OptionDeserWrapper<T> {
- fn from(t: T) -> OptionDeserWrapper<T> { OptionDeserWrapper(Some(t)) }
+impl<T> From<T> for RequiredWrapper<T> {
+ fn from(t: T) -> RequiredWrapper<T> { RequiredWrapper(Some(t)) }
+}
+
+/// Wrapper to read a required (non-optional) TLV record that may have been upgraded without
+/// backwards compat.
+///
+/// This is not exported to bindings users as manual TLV building is not currently supported in bindings
+pub struct UpgradableRequired<T: MaybeReadable>(pub Option<T>);
+impl<T: MaybeReadable> MaybeReadable for UpgradableRequired<T> {
+ #[inline]
+ fn read<R: Read>(reader: &mut R) -> Result<Option<Self>, DecodeError> {
+ let tlv = MaybeReadable::read(reader)?;
+ if let Some(tlv) = tlv { return Ok(Some(Self(Some(tlv)))) }
+ Ok(None)
+ }
}
pub(crate) struct U48(pub u64);
impl_array!(32); // for channel id & hmac
impl_array!(PUBLIC_KEY_SIZE); // for PublicKey
impl_array!(64); // for ecdsa::Signature and schnorr::Signature
+impl_array!(66); // for MuSig2 nonces
impl_array!(1300); // for OnionPacket.hop_data
impl Writeable for [u16; 8] {
/// A type for variable-length values within TLV record where the length is encoded as part of the record.
/// Used to prevent encoding the length twice.
+///
+/// This is not exported to bindings users as manual TLV building is not currently supported in bindings
pub struct WithoutLength<T>(pub T);
impl Writeable for WithoutLength<&String> {
}
}
+#[cfg(taproot)]
+impl Writeable for musig2::types::PublicNonce {
+ fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
+ self.serialize().write(w)
+ }
+}
+
+#[cfg(taproot)]
+impl Readable for musig2::types::PublicNonce {
+ fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
+ let buf: [u8; PUBLIC_KEY_SIZE * 2] = Readable::read(r)?;
+ musig2::types::PublicNonce::from_slice(&buf).map_err(|_| DecodeError::InvalidValue)
+ }
+}
+
+#[cfg(taproot)]
+impl Writeable for PartialSignatureWithNonce {
+ fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
+ self.0.serialize().write(w)?;
+ self.1.write(w)
+ }
+}
+
+#[cfg(taproot)]
+impl Readable for PartialSignatureWithNonce {
+ fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
+ let partial_signature_buf: [u8; SECRET_KEY_SIZE] = Readable::read(r)?;
+ let partial_signature = musig2::types::PartialSignature::from_slice(&partial_signature_buf).map_err(|_| DecodeError::InvalidValue)?;
+ let public_nonce: musig2::types::PublicNonce = Readable::read(r)?;
+ Ok(PartialSignatureWithNonce(partial_signature, public_nonce))
+ }
+}
+
impl Writeable for Sha256dHash {
fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
w.write_all(&self[..])
#[cfg(test)]
mod tests {
use core::convert::TryFrom;
+ use bitcoin::secp256k1::ecdsa;
use crate::util::ser::{Readable, Hostname, Writeable};
#[test]
hostname.write(&mut buf).unwrap();
assert_eq!(Hostname::read(&mut buf.as_slice()).unwrap().as_str(), "test");
}
+
+ #[test]
+ /// Taproot will likely fill legacy signature fields with all 0s.
+ /// This test ensures that doing so won't break serialization.
+ fn null_signature_codec() {
+ let buffer = vec![0u8; 64];
+ let mut cursor = crate::io::Cursor::new(buffer.clone());
+ let signature = ecdsa::Signature::read(&mut cursor).unwrap();
+ let serialization = signature.serialize_compact();
+ assert_eq!(buffer, serialization.to_vec())
+ }
+
+ #[test]
+ fn bigsize_encoding_decoding() {
+ let values = vec![0, 252, 253, 65535, 65536, 4294967295, 4294967296, 18446744073709551615];
+ let bytes = vec![
+ "00",
+ "fc",
+ "fd00fd",
+ "fdffff",
+ "fe00010000",
+ "feffffffff",
+ "ff0000000100000000",
+ "ffffffffffffffffff"
+ ];
+ for i in 0..=7 {
+ let mut stream = crate::io::Cursor::new(::hex::decode(bytes[i]).unwrap());
+ assert_eq!(super::BigSize::read(&mut stream).unwrap().0, values[i]);
+ let mut stream = super::VecWriter(Vec::new());
+ super::BigSize(values[i]).write(&mut stream).unwrap();
+ assert_eq!(stream.0, ::hex::decode(bytes[i]).unwrap());
+ }
+ let err_bytes = vec![
+ "fd00fc",
+ "fe0000ffff",
+ "ff00000000ffffffff",
+ "fd00",
+ "feffff",
+ "ffffffffff",
+ "fd",
+ "fe",
+ "ff",
+ ""
+ ];
+ for i in 0..=9 {
+ let mut stream = crate::io::Cursor::new(::hex::decode(err_bytes[i]).unwrap());
+ if i < 3 {
+ assert_eq!(super::BigSize::read(&mut stream).err(), Some(crate::ln::msgs::DecodeError::InvalidValue));
+ } else {
+ assert_eq!(super::BigSize::read(&mut stream).err(), Some(crate::ln::msgs::DecodeError::ShortRead));
+ }
+ }
+ }
}
projects / rust-lightning / blobdiff