mirror of
https://chromium.googlesource.com/crosvm/crosvm
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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.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#![no_main]
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use std::convert::TryInto;
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use cros_fuzz::fuzz_target;
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use devices::virtio::{create_descriptor_chain, DescriptorType, Reader, Writer};
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use fuse::fuzzing::fuzz_server;
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use vm_memory::{GuestAddress, GuestMemory};
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const MEM_SIZE: u64 = 256 * 1024 * 1024;
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const BUFFER_ADDR: GuestAddress = GuestAddress(0x100);
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thread_local! {
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static GUEST_MEM: GuestMemory = GuestMemory::new(&[(GuestAddress(0), MEM_SIZE)]).unwrap();
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}
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fuzz_target!(|data| {
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use DescriptorType::*;
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GUEST_MEM.with(|mem| {
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mem.write_all_at_addr(data, BUFFER_ADDR).unwrap();
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let chain = create_descriptor_chain(
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mem,
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GuestAddress(0),
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BUFFER_ADDR,
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vec![
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(Readable, data.len().try_into().unwrap()),
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(
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Writable,
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(MEM_SIZE as u32)
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.saturating_sub(data.len().try_into().unwrap())
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.saturating_sub(0x100),
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),
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],
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0,
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)
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.unwrap();
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let r = Reader::new(mem.clone(), chain.clone()).unwrap();
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let w = Writer::new(mem.clone(), chain).unwrap();
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fuzz_server(r, w);
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});
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});
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