crosvm/crosvm-fuzz/fs_server_fuzzer.rs
Dennis Kempin acc162000f Add conditional compilation for unix-only crates
Instead of configuring which crates to --exclude in
test_config.py, we can use conditional compilation to
exclude code that is not supported on windows.

This allows more fine-grained control and also allows
us to use plain cargo for building without complicated
configuration and exclusions.

BUG=b:265829867
TEST=cargo test --lib --bins --workspace
	--target=x86_64-pc-windows-gnu
	--features=all-mingw64

Change-Id: I8422c3f08053bc27d9896b220876a56bd25543d6
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4165868
Reviewed-by: Vikram Auradkar <auradkar@google.com>
Commit-Queue: Dennis Kempin <denniskempin@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
2023-01-19 21:21:59 +00:00

63 lines
1.7 KiB
Rust

// Copyright 2019 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#![cfg(not(test))]
#![no_main]
#[cfg(unix)]
mod fuzzer {
use std::convert::TryInto;
use cros_fuzz::fuzz_target;
use devices::virtio::create_descriptor_chain;
use devices::virtio::DescriptorType;
use devices::virtio::Reader;
use devices::virtio::Writer;
use fuse::fuzzing::fuzz_server;
use vm_memory::GuestAddress;
use vm_memory::GuestMemory;
const MEM_SIZE: u64 = 256 * 1024 * 1024;
const BUFFER_ADDR: GuestAddress = GuestAddress(0x100);
thread_local! {
static GUEST_MEM: GuestMemory = GuestMemory::new(&[(GuestAddress(0), MEM_SIZE)]).unwrap();
}
fuzz_target!(|data| {
use DescriptorType::*;
GUEST_MEM.with(|mem| {
mem.write_all_at_addr(data, BUFFER_ADDR).unwrap();
let chain = create_descriptor_chain(
mem,
GuestAddress(0),
BUFFER_ADDR,
vec![
(Readable, data.len().try_into().unwrap()),
(
Writable,
(MEM_SIZE as u32)
.saturating_sub(data.len().try_into().unwrap())
.saturating_sub(0x100),
),
],
0,
)
.unwrap();
let r = Reader::new(mem.clone(), chain.clone()).unwrap();
let w = Writer::new(mem.clone(), chain).unwrap();
fuzz_server(r, w);
});
});
}
#[cfg(not(unix))]
mod fuzzer {
use cros_fuzz::fuzz_target;
fuzz_target!(|_data| {});
}