- Description:
- A FUSE-based fault injection filesystem.
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readme: fix a typo (master)
test: fix pytest warning
Pytest generates a warning, see [1]. The patch fixes it. 1. https://docs.pytest.org/en/latest/deprecations.html#configuring-hook-specs-impls-using-markers
test: skip test_link on freebsd
The testcase `test_link` passed on FreeBSD 12.2 and becom broken on FreeBSD 14.0. The test failed with an error below: File "/tmp/cirrus-ci-build/unreliablefs/tests/test_unreliablefs.py", line 262, in test_link os.link(name1, name2) OSError: [Errno 5] Input/output error: '/tmp/pytest-of-root/pytest-0/test_link0/mnt/testfile_14' -> '/tmp/pytest-of-root/pytest-0/test_link0/mnt/testfile_15'
unreliablefs: allow arbitrary large duration values
`nanosleep()` fails if `.tv_nsec` is larger than 999999999, so duration must be distributed between `.tv_sec` and `.tv_nsec`. Duration also needs to be stored in `unsigned long long` to be able to store values of more than ~4 seconds.
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README.md
## UnreliableFS [](https://cirrus-ci.com/github/ligurio/unreliablefs) is a FUSE-based fault injection filesystem that allows to change fault-injections in runtime using simple configuration file. Supported fault injections are: - `errinj_errno` - return error value and set random errno. - `errinj_kill_caller` - send SIGKILL to a process that invoked file operation. - `errinj_noop` - replace file operation with no operation (similar to [libeatmydata](https://github.com/stewartsmith/libeatmydata), but applicable to any file operation). - `errinj_slowdown` - slowdown invoked file operation. ### Building Prerequisites: - CentOS: `dnf install -y gcc -y cmake fuse fuse-devel` - Ubuntu: `apt-get install -y gcc cmake fuse libfuse-dev` - FreeBSD: `pkg install gcc cmake fusefs-libs pkgconf` - OpenBSD: `pkg_add cmake` - macOS: `brew install --cask osxfuse` ```sh $ cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug $ cmake --build build --parallel ``` ### Packages [](https://repology.org/project/fusefs:unreliablefs/versions) ### Using ```sh $ mkdir /tmp/fs $ unreliablefs /tmp/fs -basedir=/tmp -seed=1618680646 $ cat << EOF > /tmp/fs/unreliablefs.conf [errinj_noop] op_regexp = .* path_regexp = .* probability = 30 EOF $ ls -la $ umount /tmp/fs ``` ### Documentation See documentation in [unreliablefs.1](https://ligurio.github.io/unreliablefs/unreliablefs.1.html) and [unreliablefs.conf.5](https://ligurio.github.io/unreliablefs/unreliablefs.conf.5.html). ### License MIT License, Copyright (c) 2020-2023, Sergey Bronnikov BSD-3-Clause, Copyright (C) 2009-2020, Ben Hoyt