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Antoine Riard
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Add bolt2 msgs serialization tests
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‎src/ln/msgs.rs

Lines changed: 309 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1392,10 +1392,15 @@ impl_writeable_len_match!(NodeAnnouncement, {
13921392
mod tests {
13931393
use hex;
13941394
use ln::msgs;
1395-
use ln::msgs::{GlobalFeatures, OptionalField};
1395+
use ln::msgs::{GlobalFeatures, OptionalField, OnionErrorPacket};
1396+
use ln::channelmanager::{PaymentPreimage, PaymentHash};
13961397
use util::ser::Writeable;
13971398

13981399
use bitcoin::util::hash::Sha256dHash;
1400+
use bitcoin::util::address::Address;
1401+
use bitcoin::network::constants::Network;
1402+
use bitcoin::blockdata::script::Builder;
1403+
use bitcoin::blockdata::opcodes;
13991404

14001405
use secp256k1::key::{PublicKey,SecretKey};
14011406
use secp256k1::{Secp256k1, Message};
@@ -1689,4 +1694,307 @@ mod tests {
16891694
do_encoding_channel_update(false, false, false, true);
16901695
do_encoding_channel_update(true, true, true, true);
16911696
}
1697+
1698+
fn do_encoding_open_channel(non_bitcoin_chain_hash: bool, random_bit: bool, shutdown: bool) {
1699+
let secp_ctx = Secp256k1::new();
1700+
let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1701+
let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1702+
let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1703+
let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1704+
let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
1705+
let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
1706+
let open_channel = msgs::OpenChannel {
1707+
chain_hash: if !non_bitcoin_chain_hash { Sha256dHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap() } else { Sha256dHash::from_hex("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943").unwrap() },
1708+
temporary_channel_id: [2; 32],
1709+
funding_satoshis: 1311768467284833366,
1710+
push_msat: 2536655962884945560,
1711+
dust_limit_satoshis: 3608586615801332854,
1712+
max_htlc_value_in_flight_msat: 8517154655701053848,
1713+
channel_reserve_satoshis: 8665828695742877976,
1714+
htlc_minimum_msat: 2316138423780173,
1715+
feerate_per_kw: 821716,
1716+
to_self_delay: 49340,
1717+
max_accepted_htlcs: 49340,
1718+
funding_pubkey: pubkey_1,
1719+
revocation_basepoint: pubkey_2,
1720+
payment_basepoint: pubkey_3,
1721+
delayed_payment_basepoint: pubkey_4,
1722+
htlc_basepoint: pubkey_5,
1723+
first_per_commitment_point: pubkey_6,
1724+
channel_flags: if random_bit { 1 << 5 } else { 0 },
1725+
shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&pubkey_1, Network::Testnet).script_pubkey()) } else { OptionalField::Absent }
1726+
};
1727+
let encoded_value = open_channel.encode();
1728+
let mut target_value = Vec::new();
1729+
if non_bitcoin_chain_hash {
1730+
target_value.append(&mut hex::decode("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000").unwrap());
1731+
} else {
1732+
target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
1733+
}
1734+
target_value.append(&mut hex::decode("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").unwrap());
1735+
if random_bit {
1736+
target_value.append(&mut hex::decode("20").unwrap());
1737+
} else {
1738+
target_value.append(&mut hex::decode("00").unwrap());
1739+
}
1740+
if shutdown {
1741+
target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1742+
}
1743+
assert_eq!(encoded_value, target_value);
1744+
}
1745+
1746+
#[test]
1747+
fn encoding_open_channel() {
1748+
do_encoding_open_channel(false, false, false);
1749+
do_encoding_open_channel(true, false, false);
1750+
do_encoding_open_channel(false, true, false);
1751+
do_encoding_open_channel(false, false, true);
1752+
do_encoding_open_channel(true, true, true);
1753+
}
1754+
1755+
fn do_encoding_accept_channel(shutdown: bool) {
1756+
let secp_ctx = Secp256k1::new();
1757+
let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1758+
let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1759+
let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1760+
let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1761+
let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
1762+
let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
1763+
let accept_channel = msgs::AcceptChannel {
1764+
temporary_channel_id: [2; 32],
1765+
dust_limit_satoshis: 1311768467284833366,
1766+
max_htlc_value_in_flight_msat: 2536655962884945560,
1767+
channel_reserve_satoshis: 3608586615801332854,
1768+
htlc_minimum_msat: 2316138423780173,
1769+
minimum_depth: 821716,
1770+
to_self_delay: 49340,
1771+
max_accepted_htlcs: 49340,
1772+
funding_pubkey: pubkey_1,
1773+
revocation_basepoint: pubkey_2,
1774+
payment_basepoint: pubkey_3,
1775+
delayed_payment_basepoint: pubkey_4,
1776+
htlc_basepoint: pubkey_5,
1777+
first_per_commitment_point: pubkey_6,
1778+
shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&pubkey_1, Network::Testnet).script_pubkey()) } else { OptionalField::Absent }
1779+
};
1780+
let encoded_value = accept_channel.encode();
1781+
let mut target_value = hex::decode("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").unwrap();
1782+
if shutdown {
1783+
target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1784+
}
1785+
assert_eq!(encoded_value, target_value);
1786+
}
1787+
1788+
#[test]
1789+
fn encoding_accept_channel() {
1790+
do_encoding_accept_channel(false);
1791+
do_encoding_accept_channel(true);
1792+
}
1793+
1794+
#[test]
1795+
fn encoding_funding_created() {
1796+
let secp_ctx = Secp256k1::new();
1797+
let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1798+
let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1799+
let funding_created = msgs::FundingCreated {
1800+
temporary_channel_id: [2; 32],
1801+
funding_txid: Sha256dHash::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(),
1802+
funding_output_index: 255,
1803+
signature: sig_1,
1804+
};
1805+
let encoded_value = funding_created.encode();
1806+
let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202026e96fe9f8b0ddcd729ba03cfafa5a27b050b39d354dd980814268dfa9a44d4c200ffd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1807+
assert_eq!(encoded_value, target_value);
1808+
}
1809+
1810+
#[test]
1811+
fn encoding_funding_signed() {
1812+
let secp_ctx = Secp256k1::new();
1813+
let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1814+
let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1815+
let funding_signed = msgs::FundingSigned {
1816+
channel_id: [2; 32],
1817+
signature: sig_1,
1818+
};
1819+
let encoded_value = funding_signed.encode();
1820+
let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1821+
assert_eq!(encoded_value, target_value);
1822+
}
1823+
1824+
#[test]
1825+
fn encoding_funding_locked() {
1826+
let secp_ctx = Secp256k1::new();
1827+
let (_, pubkey_1,) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1828+
let funding_locked = msgs::FundingLocked {
1829+
channel_id: [2; 32],
1830+
next_per_commitment_point: pubkey_1,
1831+
};
1832+
let encoded_value = funding_locked.encode();
1833+
let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
1834+
assert_eq!(encoded_value, target_value);
1835+
}
1836+
1837+
fn do_encoding_shutdown(script_type: u8) {
1838+
let secp_ctx = Secp256k1::new();
1839+
let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1840+
let script = Builder::new().push_opcode(opcodes::OP_TRUE).into_script();
1841+
let shutdown = msgs::Shutdown {
1842+
channel_id: [2; 32],
1843+
scriptpubkey: if script_type == 1 { Address::p2pkh(&pubkey_1, Network::Testnet).script_pubkey() } else if script_type == 2 { Address::p2sh(&script, Network::Testnet).script_pubkey() } else if script_type == 3 { Address::p2wpkh(&pubkey_1, Network::Testnet).script_pubkey() } else { Address::p2wsh(&script, Network::Testnet).script_pubkey() },
1844+
};
1845+
let encoded_value = shutdown.encode();
1846+
let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202").unwrap();
1847+
if script_type == 1 {
1848+
target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
1849+
} else if script_type == 2 {
1850+
target_value.append(&mut hex::decode("0017a914da1745e9b549bd0bfa1a569971c77eba30cd5a4b87").unwrap());
1851+
} else if script_type == 3 {
1852+
target_value.append(&mut hex::decode("0016001479b000887626b294a914501a4cd226b58b235983").unwrap());
1853+
} else if script_type == 4 {
1854+
target_value.append(&mut hex::decode("002200204ae81572f06e1b88fd5ced7a1a000945432e83e1551e6f721ee9c00b8cc33260").unwrap());
1855+
}
1856+
assert_eq!(encoded_value, target_value);
1857+
}
1858+
1859+
#[test]
1860+
fn encoding_shutdown() {
1861+
do_encoding_shutdown(1);
1862+
do_encoding_shutdown(2);
1863+
do_encoding_shutdown(3);
1864+
do_encoding_shutdown(4);
1865+
}
1866+
1867+
#[test]
1868+
fn encoding_closing_signed() {
1869+
let secp_ctx = Secp256k1::new();
1870+
let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1871+
let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1872+
let closing_signed = msgs::ClosingSigned {
1873+
channel_id: [2; 32],
1874+
fee_satoshis: 2316138423780173,
1875+
signature: sig_1,
1876+
};
1877+
let encoded_value = closing_signed.encode();
1878+
let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1879+
assert_eq!(encoded_value, target_value);
1880+
}
1881+
1882+
#[test]
1883+
fn encoding_update_add_htlc() {
1884+
let secp_ctx = Secp256k1::new();
1885+
let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1886+
let onion_routing_packet = msgs::OnionPacket {
1887+
version: 255,
1888+
public_key: Ok(pubkey_1),
1889+
hop_data: [1; 20*65],
1890+
hmac: [2; 32]
1891+
};
1892+
let update_add_htlc = msgs::UpdateAddHTLC {
1893+
channel_id: [2; 32],
1894+
htlc_id: 2316138423780173,
1895+
amount_msat: 3608586615801332854,
1896+
payment_hash: PaymentHash([1; 32]),
1897+
cltv_expiry: 821716,
1898+
onion_routing_packet
1899+
};
1900+
let encoded_value = update_add_htlc.encode();
1901+
let target_value = hex::decode("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").unwrap();
1902+
assert_eq!(encoded_value, target_value);
1903+
}
1904+
1905+
#[test]
1906+
fn encoding_update_fulfill_htlc() {
1907+
let update_fulfill_htlc = msgs::UpdateFulfillHTLC {
1908+
channel_id: [2; 32],
1909+
htlc_id: 2316138423780173,
1910+
payment_preimage: PaymentPreimage([1; 32]),
1911+
};
1912+
let encoded_value = update_fulfill_htlc.encode();
1913+
let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d0101010101010101010101010101010101010101010101010101010101010101").unwrap();
1914+
assert_eq!(encoded_value, target_value);
1915+
}
1916+
1917+
#[test]
1918+
fn encoding_update_fail_htlc() {
1919+
let reason = OnionErrorPacket {
1920+
data: [1; 32].to_vec(),
1921+
};
1922+
let update_fail_htlc = msgs::UpdateFailHTLC {
1923+
channel_id: [2; 32],
1924+
htlc_id: 2316138423780173,
1925+
reason
1926+
};
1927+
let encoded_value = update_fail_htlc.encode();
1928+
let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d00200101010101010101010101010101010101010101010101010101010101010101").unwrap();
1929+
assert_eq!(encoded_value, target_value);
1930+
}
1931+
1932+
#[test]
1933+
fn encoding_update_fail_malformed_htlc() {
1934+
let update_fail_malformed_htlc = msgs::UpdateFailMalformedHTLC {
1935+
channel_id: [2; 32],
1936+
htlc_id: 2316138423780173,
1937+
sha256_of_onion: [1; 32],
1938+
failure_code: 255
1939+
};
1940+
let encoded_value = update_fail_malformed_htlc.encode();
1941+
let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d010101010101010101010101010101010101010101010101010101010101010100ff").unwrap();
1942+
assert_eq!(encoded_value, target_value);
1943+
}
1944+
1945+
fn do_encoding_commitment_signed(htlcs: bool) {
1946+
let secp_ctx = Secp256k1::new();
1947+
let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1948+
let (privkey_2, _) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
1949+
let (privkey_3, _) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
1950+
let (privkey_4, _) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
1951+
let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
1952+
let sig_2 = get_sig_on!(privkey_2, secp_ctx, String::from("01010101010101010101010101010101"));
1953+
let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
1954+
let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
1955+
let commitment_signed = msgs::CommitmentSigned {
1956+
channel_id: [2; 32],
1957+
signature: sig_1,
1958+
htlc_signatures: if htlcs { vec![sig_2, sig_3, sig_4] } else { Vec::new() },
1959+
};
1960+
let encoded_value = commitment_signed.encode();
1961+
let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
1962+
if htlcs {
1963+
target_value.append(&mut hex::decode("00031735b6a427e80d5fe7cd90a2f4ee08dc9c27cda7c35a4172e5d85b12c49d4232537e98f9b1f3c5e6989a8b9644e90e8918127680dbd0d4043510840fc0f1e11a216c280b5395a2546e7e4b2663e04f811622f15a4f91e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d2692b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
1964+
} else {
1965+
target_value.append(&mut hex::decode("0000").unwrap());
1966+
}
1967+
assert_eq!(encoded_value, target_value);
1968+
}
1969+
1970+
#[test]
1971+
fn encoding_commitment_signed() {
1972+
do_encoding_commitment_signed(true);
1973+
do_encoding_commitment_signed(false);
1974+
}
1975+
1976+
#[test]
1977+
fn encoding_revoke_and_ack() {
1978+
let secp_ctx = Secp256k1::new();
1979+
let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
1980+
let raa = msgs::RevokeAndACK {
1981+
channel_id: [2; 32],
1982+
per_commitment_secret: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
1983+
next_per_commitment_point: pubkey_1,
1984+
};
1985+
let encoded_value = raa.encode();
1986+
let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202020101010101010101010101010101010101010101010101010101010101010101031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
1987+
assert_eq!(encoded_value, target_value);
1988+
}
1989+
1990+
#[test]
1991+
fn encoding_update_fee() {
1992+
let update_fee = msgs::UpdateFee {
1993+
channel_id: [2; 32],
1994+
feerate_per_kw: 20190119,
1995+
};
1996+
let encoded_value = update_fee.encode();
1997+
let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202013413a7").unwrap();
1998+
assert_eq!(encoded_value, target_value);
1999+
}
16922000
}

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