mirror of
https://chromium.googlesource.com/crosvm/crosvm
synced 2024-11-25 05:03:05 +00:00
bae88f4f65
The current crate still require some work to be really reusable as a regular FUSE, i.e. with a new reader/writer against /dev/fuse. This change intends to focus on creating the crate, without trying to find the optimal interface, and still keep virtio/fs working. BUG=b:168305155 TEST=./build_test TEST=USE='asan fuzzer' emerge-hatch crosvm Change-Id: I8b623c9262221113b720c10125a6770763f14dc8 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2466484 Tested-by: Victor Hsieh <victorhsieh@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Chirantan Ekbote <chirantan@chromium.org> Commit-Queue: Victor Hsieh <victorhsieh@chromium.org>
48 lines
1.4 KiB
Rust
48 lines
1.4 KiB
Rust
// Copyright 2019 The Chromium OS Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#![no_main]
|
|
|
|
use std::convert::TryInto;
|
|
|
|
use cros_fuzz::fuzz_target;
|
|
use devices::virtio::{create_descriptor_chain, DescriptorType, Reader, Writer};
|
|
use fuse::fuzzing::fuzz_server;
|
|
use vm_memory::{GuestAddress, 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);
|
|
});
|
|
});
|