X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fonion_message%2Fblinded_route.rs;h=e47c77de35459ba0b1082117c06d7e291d052d5d;hb=71f4749e1c0d48a916c1ba3b0631d7796f61c074;hp=d18372e3b009bb09d82a5d7b6eb62ebcdda7d4ca;hpb=736c0b9e7f3dfe022e9bcd73717d17c21fe68355;p=rust-lightning diff --git a/lightning/src/onion_message/blinded_route.rs b/lightning/src/onion_message/blinded_route.rs index d18372e3..e47c77de 100644 --- a/lightning/src/onion_message/blinded_route.rs +++ b/lightning/src/onion_message/blinded_route.rs @@ -11,12 +11,12 @@ use bitcoin::secp256k1::{self, PublicKey, Secp256k1, SecretKey}; -use chain::keysinterface::{KeysInterface, Sign}; +use chain::keysinterface::KeysInterface; use super::utils; +use ln::msgs::DecodeError; use util::chacha20poly1305rfc::ChaChaPolyWriteAdapter; -use util::ser::{VecWriter, Writeable, Writer}; +use util::ser::{Readable, VecWriter, Writeable, Writer}; -use core::iter::FromIterator; use io; use prelude::*; @@ -55,7 +55,7 @@ impl BlindedRoute { /// /// Errors if less than two hops are provided or if `node_pk`(s) are invalid. // TODO: make all payloads the same size with padding + add dummy hops - pub fn new + pub fn new (node_pks: &[PublicKey], keys_manager: &K, secp_ctx: &Secp256k1) -> Result { if node_pks.len() < 2 { return Err(()) } @@ -113,6 +113,41 @@ fn encrypt_payload(payload: P, encrypted_tlvs_ss: [u8; 32]) -> Vec writer.0 } +impl Writeable for BlindedRoute { + fn write(&self, w: &mut W) -> Result<(), io::Error> { + self.introduction_node_id.write(w)?; + self.blinding_point.write(w)?; + (self.blinded_hops.len() as u8).write(w)?; + for hop in &self.blinded_hops { + hop.write(w)?; + } + Ok(()) + } +} + +impl Readable for BlindedRoute { + fn read(r: &mut R) -> Result { + let introduction_node_id = Readable::read(r)?; + let blinding_point = Readable::read(r)?; + let num_hops: u8 = Readable::read(r)?; + if num_hops == 0 { return Err(DecodeError::InvalidValue) } + let mut blinded_hops: Vec = Vec::with_capacity(num_hops.into()); + for _ in 0..num_hops { + blinded_hops.push(Readable::read(r)?); + } + Ok(BlindedRoute { + introduction_node_id, + blinding_point, + blinded_hops, + }) + } +} + +impl_writeable!(BlindedHop, { + blinded_node_id, + encrypted_payload +}); + /// TLVs to encode in an intermediate onion message packet's hop data. When provided in a blinded /// route, they are encoded into [`BlindedHop::encrypted_payload`]. pub(crate) struct ForwardTlvs {