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Trampoline onion construction vectors #2906

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Merged
merged 3 commits into from
Mar 27, 2024
Merged

Trampoline onion construction vectors #2906

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4baa8a7
Rename TrampolineOnionPacket enum comment.
arik-so Mar 22, 2024
e7e1afa
Trampoline onion construction.
arik-so Mar 27, 2024
52039a2
Test Trampoline payload serialization.
arik-so Mar 27, 2024
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24 changes: 22 additions & 2 deletions lightning/src/ln/onion_route_tests.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ use crate::routing::gossip::{NetworkUpdate, RoutingFees};
use crate::routing::router::{get_route, PaymentParameters, Route, RouteParameters, RouteHint, RouteHintHop};
use crate::ln::features::{InitFeatures, Bolt11InvoiceFeatures};
use crate::ln::msgs;
use crate::ln::msgs::{ChannelMessageHandler, ChannelUpdate};
use crate::ln::msgs::{ChannelMessageHandler, ChannelUpdate, OutboundTrampolinePayload};
use crate::ln::wire::Encode;
use crate::util::ser::{Writeable, Writer, BigSize};
use crate::util::test_utils;
Expand All @@ -35,11 +35,12 @@ use bitcoin::hashes::hmac::{Hmac, HmacEngine};
use bitcoin::hashes::sha256::Hash as Sha256;

use bitcoin::secp256k1;
use bitcoin::secp256k1::{Secp256k1, SecretKey};
use bitcoin::secp256k1::{PublicKey, Secp256k1, SecretKey};

use crate::io;
use crate::prelude::*;
use core::default::Default;
use bitcoin::hashes::hex::FromHex;
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nit: import out of order


use crate::ln::functional_test_utils::*;

Expand Down Expand Up @@ -966,6 +967,25 @@ fn test_always_create_tlv_format_onion_payloads() {
}
}

#[test]
fn test_trampoline_onion_payload_serialization() {
// As per https://github.com/lightning/bolts/blob/c01d2e6267d4a8d1095f0f1188970055a9a22d29/bolt04/trampoline-payment-onion-test.json#L3
let trampoline_payload = OutboundTrampolinePayload::Forward {
amt_to_forward: 100000000,
outgoing_cltv_value: 800000,
outgoing_node_id: PublicKey::from_slice(&<Vec<u8>>::from_hex("02edabbd16b41c8371b92ef2f04c1185b4f03b6dcd52ba9b78d9d7c89c8f221145").unwrap()).unwrap(),
};

let slice_to_hex = |slice: &[u8]| {
slice.iter()
.map(|b| format!("{:02x}", b).to_string())
.collect::<String>()
};

let carol_payload_hex = slice_to_hex(&trampoline_payload.encode());
assert_eq!(carol_payload_hex, "2e020405f5e10004030c35000e2102edabbd16b41c8371b92ef2f04c1185b4f03b6dcd52ba9b78d9d7c89c8f221145");
}

fn do_test_fail_htlc_backwards_with_reason(failure_code: FailureCode) {

let chanmon_cfgs = create_chanmon_cfgs(2);
Expand Down