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Commit 2d87bad

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author
Antoine Riard
committed
Add DummyChainWatcher in route_target
1 parent 56571ae commit 2d87bad

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-4
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+53
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fuzz/fuzz_targets/router_target.rs

Lines changed: 53 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -2,9 +2,11 @@ extern crate bitcoin;
22
extern crate lightning;
33
extern crate secp256k1;
44

5-
use bitcoin::network::constants::Network;
5+
use bitcoin::util::hash::Sha256dHash;
6+
use bitcoin::blockdata::script::{Script, Builder};
7+
use bitcoin::blockdata::opcodes;
68

7-
use lightning::chain::chaininterface;
9+
use lightning::chain::chaininterface::{ChainError,ChainWatchInterface, ChainListener};
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use lightning::ln::channelmanager::ChannelDetails;
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use lightning::ln::msgs;
1012
use lightning::ln::msgs::{MsgDecodable, RoutingMessageHandler};
@@ -19,7 +21,8 @@ mod utils;
1921

2022
use utils::test_logger;
2123

22-
use std::sync::Arc;
24+
use std::sync::{Weak, Arc};
25+
use std::sync::atomic::{AtomicUsize, Ordering};
2326

2427
#[inline]
2528
pub fn slice_to_be16(v: &[u8]) -> u16 {
@@ -47,6 +50,46 @@ pub fn slice_to_be64(v: &[u8]) -> u64 {
4750
((v[7] as u64) << 8*0)
4851
}
4952

53+
54+
struct InputData {
55+
data: Vec<u8>,
56+
read_pos: AtomicUsize,
57+
}
58+
impl InputData {
59+
fn get_slice(&self, len: usize) -> Option<&[u8]> {
60+
let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
61+
if self.data.len() < old_pos + len {
62+
return None;
63+
}
64+
Some(&self.data[old_pos..old_pos + len])
65+
}
66+
}
67+
68+
struct DummyChainWatcher {
69+
input: Arc<InputData>,
70+
}
71+
72+
impl ChainWatchInterface for DummyChainWatcher {
73+
fn install_watch_script(&self, _script_pub_key: &Script) {
74+
}
75+
76+
fn install_watch_outpoint(&self, _outpoint: (Sha256dHash, u32), _out_script: &Script) {
77+
}
78+
79+
fn watch_all_txn(&self) {
80+
}
81+
82+
fn register_listener(&self, _listener: Weak<ChainListener>) {
83+
}
84+
85+
fn get_chain_utxo(&self, _genesis_hash: Sha256dHash, _unspent_tx_output_identifier: u64) -> Result<(Script, u64), ChainError> {
86+
match self.input.get_slice(1) {
87+
Some(slice) => Ok((Builder::new().push_opcode(opcodes::All::OP_PUSHBYTES_0).into_script().to_v0_p2wsh(), 0)),
88+
None => Err(ChainError::UnknownTx),
89+
}
90+
}
91+
}
92+
5093
#[inline]
5194
pub fn do_test(data: &[u8]) {
5295
reset_rng_state();
@@ -110,7 +153,13 @@ pub fn do_test(data: &[u8]) {
110153
}
111154

112155
let logger: Arc<Logger> = Arc::new(test_logger::TestLogger{});
113-
let chain_monitor = Arc::new(chaininterface::ChainWatchInterfaceUtil::new(Network::Bitcoin, Arc::clone(&logger)));
156+
let input = Arc::new(InputData {
157+
data: data.to_vec(),
158+
read_pos: AtomicUsize::new(0),
159+
});
160+
let chain_monitor = Arc::new(DummyChainWatcher {
161+
input: input,
162+
});
114163

115164
let our_pubkey = get_pubkey!();
116165
let router = Router::new(our_pubkey.clone(), chain_monitor, Arc::clone(&logger));

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