1 // This file is Copyright its original authors, visible in version control
4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
7 // You may not use this file except in accordance with one or both of these
10 //! Implementations of various parts of the Lightning protocol are in this module.
12 #[cfg(any(test, feature = "_test_utils"))]
14 pub mod functional_test_utils;
17 pub mod channelmanager;
18 pub mod inbound_payment;
26 pub mod peer_channel_encryptor;
28 pub(crate) mod peer_channel_encryptor;
33 pub(crate) mod channel;
35 // Re-export ChannelId
36 pub use self::channel_id::ChannelId;
38 pub(crate) mod onion_utils;
42 // Older rustc (which we support) refuses to let us call the get_payment_preimage_hash!() macro
43 // without the node parameter being mut. This is incorrect, and thus newer rustcs will complain
44 // about an unnecessary mut. Thus, we silence the unused_mut warning in two test modules below.
54 mod priv_short_conf_tests;
57 mod chanmon_update_fail_tests;
66 mod onion_route_tests;
74 pub use self::peer_channel_encryptor::LN_MAX_MSG_LEN;
76 /// payment_hash type, use to cross-lock hop
78 /// This is not exported to bindings users as we just use [u8; 32] directly
79 #[derive(Hash, Copy, Clone, PartialEq, Eq, Debug, Ord, PartialOrd)]
80 pub struct PaymentHash(pub [u8; 32]);
82 impl core::fmt::Display for PaymentHash {
83 fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
84 crate::util::logger::DebugBytes(&self.0).fmt(f)
88 /// payment_preimage type, use to route payment between hop
90 /// This is not exported to bindings users as we just use [u8; 32] directly
91 #[derive(Hash, Copy, Clone, PartialEq, Eq, Debug, Ord, PartialOrd)]
92 pub struct PaymentPreimage(pub [u8; 32]);
94 impl core::fmt::Display for PaymentPreimage {
95 fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
96 crate::util::logger::DebugBytes(&self.0).fmt(f)
100 /// payment_secret type, use to authenticate sender to the receiver and tie MPP HTLCs together
102 /// This is not exported to bindings users as we just use [u8; 32] directly
103 #[derive(Hash, Copy, Clone, PartialEq, Eq, Debug, Ord, PartialOrd)]
104 pub struct PaymentSecret(pub [u8; 32]);
106 use crate::prelude::*;
108 use bitcoin::bech32::{Base32Len, FromBase32, ToBase32, WriteBase32, u5};
110 impl FromBase32 for PaymentSecret {
111 type Err = bech32::Error;
113 fn from_base32(field_data: &[u5]) -> Result<PaymentSecret, bech32::Error> {
114 if field_data.len() != 52 {
115 return Err(bech32::Error::InvalidLength)
117 let data_bytes = Vec::<u8>::from_base32(field_data)?;
118 let mut payment_secret = [0; 32];
119 payment_secret.copy_from_slice(&data_bytes);
120 Ok(PaymentSecret(payment_secret))
125 impl ToBase32 for PaymentSecret {
126 fn write_base32<W: WriteBase32>(&self, writer: &mut W) -> Result<(), <W as WriteBase32>::Err> {
127 (&self.0[..]).write_base32(writer)
131 impl Base32Len for PaymentSecret {
132 fn base32_len(&self) -> usize {