diff --git a/fuzz/src/bech32_parse.rs b/fuzz/src/bech32_parse.rs new file mode 100644 index 000000000..f3dd5ac9d --- /dev/null +++ b/fuzz/src/bech32_parse.rs @@ -0,0 +1,57 @@ +// This file is Copyright its original authors, visible in version control +// history. +// +// This file is licensed under the Apache License, Version 2.0 or the MIT license +// , at your option. +// You may not use this file except in accordance with one or both of these +// licenses. + +use crate::utils::test_logger; +use core::convert::TryFrom; +use lightning::offers::parse::{Bech32Encode, ParseError}; + +#[inline] +pub fn do_test(data: &[u8], _out: Out) { + if let Ok(bech32_encoded) = std::str::from_utf8(data) { + if let Ok(bytes) = Bytes::from_bech32_str(bech32_encoded) { + let bech32_encoded = bytes.to_string(); + assert_eq!(bytes, Bytes::from_bech32_str(&bech32_encoded).unwrap()); + } + } +} + +#[derive(Debug, PartialEq)] +struct Bytes(Vec); + +impl Bech32Encode for Bytes { + const BECH32_HRP: &'static str = "lno"; +} + +impl AsRef<[u8]> for Bytes { + fn as_ref(&self) -> &[u8] { + &self.0 + } +} + +impl TryFrom> for Bytes { + type Error = ParseError; + fn try_from(data: Vec) -> Result { + Ok(Bytes(data)) + } +} + +impl core::fmt::Display for Bytes { + fn fmt(&self, f: &mut core::fmt::Formatter) -> Result<(), core::fmt::Error> { + self.fmt_bech32_str(f) + } +} + +pub fn bech32_parse_test(data: &[u8], out: Out) { + do_test(data, out); +} + +#[no_mangle] +pub extern "C" fn bech32_parse_run(data: *const u8, datalen: usize) { + do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {}); +} diff --git a/fuzz/src/bin/bech32_parse_target.rs b/fuzz/src/bin/bech32_parse_target.rs new file mode 100644 index 000000000..629112f9f --- /dev/null +++ b/fuzz/src/bin/bech32_parse_target.rs @@ -0,0 +1,113 @@ +// This file is Copyright its original authors, visible in version control +// history. +// +// This file is licensed under the Apache License, Version 2.0 or the MIT license +// , at your option. +// You may not use this file except in accordance with one or both of these +// licenses. + +// This file is auto-generated by gen_target.sh based on target_template.txt +// To modify it, modify target_template.txt and run gen_target.sh instead. + +#![cfg_attr(feature = "libfuzzer_fuzz", no_main)] + +#[cfg(not(fuzzing))] +compile_error!("Fuzz targets need cfg=fuzzing"); + +extern crate lightning_fuzz; +use lightning_fuzz::bech32_parse::*; + +#[cfg(feature = "afl")] +#[macro_use] extern crate afl; +#[cfg(feature = "afl")] +fn main() { + fuzz!(|data| { + bech32_parse_run(data.as_ptr(), data.len()); + }); +} + +#[cfg(feature = "honggfuzz")] +#[macro_use] extern crate honggfuzz; +#[cfg(feature = "honggfuzz")] +fn main() { + loop { + fuzz!(|data| { + bech32_parse_run(data.as_ptr(), data.len()); + }); + } +} + +#[cfg(feature = "libfuzzer_fuzz")] +#[macro_use] extern crate libfuzzer_sys; +#[cfg(feature = "libfuzzer_fuzz")] +fuzz_target!(|data: &[u8]| { + bech32_parse_run(data.as_ptr(), data.len()); +}); + +#[cfg(feature = "stdin_fuzz")] +fn main() { + use std::io::Read; + + let mut data = Vec::with_capacity(8192); + std::io::stdin().read_to_end(&mut data).unwrap(); + bech32_parse_run(data.as_ptr(), data.len()); +} + +#[test] +fn run_test_cases() { + use std::fs; + use std::io::Read; + use lightning_fuzz::utils::test_logger::StringBuffer; + + use std::sync::{atomic, Arc}; + { + let data: Vec = vec![0]; + bech32_parse_run(data.as_ptr(), data.len()); + } + let mut threads = Vec::new(); + let threads_running = Arc::new(atomic::AtomicUsize::new(0)); + if let Ok(tests) = fs::read_dir("test_cases/bech32_parse") { + for test in tests { + let mut data: Vec = Vec::new(); + let path = test.unwrap().path(); + fs::File::open(&path).unwrap().read_to_end(&mut data).unwrap(); + threads_running.fetch_add(1, atomic::Ordering::AcqRel); + + let thread_count_ref = Arc::clone(&threads_running); + let main_thread_ref = std::thread::current(); + threads.push((path.file_name().unwrap().to_str().unwrap().to_string(), + std::thread::spawn(move || { + let string_logger = StringBuffer::new(); + + let panic_logger = string_logger.clone(); + let res = if ::std::panic::catch_unwind(move || { + bech32_parse_test(&data, panic_logger); + }).is_err() { + Some(string_logger.into_string()) + } else { None }; + thread_count_ref.fetch_sub(1, atomic::Ordering::AcqRel); + main_thread_ref.unpark(); + res + }) + )); + while threads_running.load(atomic::Ordering::Acquire) > 32 { + std::thread::park(); + } + } + } + let mut failed_outputs = Vec::new(); + for (test, thread) in threads.drain(..) { + if let Some(output) = thread.join().unwrap() { + println!("\nOutput of {}:\n{}\n", test, output); + failed_outputs.push(test); + } + } + if !failed_outputs.is_empty() { + println!("Test cases which failed: "); + for case in failed_outputs { + println!("{}", case); + } + panic!(); + } +} diff --git a/fuzz/src/bin/gen_target.sh b/fuzz/src/bin/gen_target.sh index fe10e6647..d7928188d 100755 --- a/fuzz/src/bin/gen_target.sh +++ b/fuzz/src/bin/gen_target.sh @@ -6,6 +6,7 @@ GEN_TEST() { echo "void $1_run(const unsigned char* data, size_t data_len);" >> ../../targets.h } +GEN_TEST bech32_parse GEN_TEST chanmon_deser GEN_TEST chanmon_consistency GEN_TEST full_stack diff --git a/fuzz/src/lib.rs b/fuzz/src/lib.rs index 396408637..92142e564 100644 --- a/fuzz/src/lib.rs +++ b/fuzz/src/lib.rs @@ -14,6 +14,7 @@ extern crate hex; pub mod utils; +pub mod bech32_parse; pub mod chanmon_deser; pub mod chanmon_consistency; pub mod full_stack; diff --git a/fuzz/targets.h b/fuzz/targets.h index 53831866e..8f846c5e0 100644 --- a/fuzz/targets.h +++ b/fuzz/targets.h @@ -1,4 +1,5 @@ #include +void bech32_parse_run(const unsigned char* data, size_t data_len); void chanmon_deser_run(const unsigned char* data, size_t data_len); void chanmon_consistency_run(const unsigned char* data, size_t data_len); void full_stack_run(const unsigned char* data, size_t data_len);