- Check all pointers
- Declaratons always at top of func/scope
- Use established variable nomenclature
- Skip useless if() stmt
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
- Comments preferably at beginning of func/sect
- Reorder code slightly, add whitespace for readability
- Drop useless comment
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit implements a test for the signal feature of initctl. The
existing service used in tests (`common/service.sh`) has been extended
with a signal trap handler. When SIGUSR1 is received, it will write the
string `'USR1'` to `/tmp/usr1.log`. The test will run `initctl signal
service.sh SIGUSR1` and assert that the contents of the file
`/tmp/usr1.log` really is `USR1`.
The implementation looks up the named service by using
`svc_parse_jobstr`. The callbacks for `svc_parse_jobstr` has been
augmented to accept a user data parameter. For this use case,
a carrier for the actual signal was needed. The address of the
signal parameter is taken and passed on as a `void *`. The
callback then simply deferences it as an int - the signal number.
In the test framework for finit, a set of shell scripts are used to
setup a test harness, run tests, and finalize tests. In the setup, a
file system is created for the virtualized/containerized environment in
which all tests are run, located at `$FINIT_SRC/test/tenv-root`. In the
tear down phase of each test, the file `/var/lock` is made readable
using `chmod +r`. It is not clear _why_ the teardown code does this, as
there are no references in the test framework to this path anywhere
else. It is conceivable that the teardown phase attempted to "reset the
state" for next test.
The code that that this commit removes does not always work. When
`/var/lock` is a symlink, and resolves to an absolute path, the test
framework does not function properly. The teardown code is run in the
context of the host computer, and touching files outside of the
virtualized environment is not ok.
The removal of the offending code does not seem to affect tests: all
tests pass without it, so its existence is questionable.
Signed-off-by: Jörgen Sigvardsson <jorgen.sigvardsson@gmail.com>
Blocking SIGTERM means Finit will wait another two seconds before it
sends SIGKILL, which casues a delayed [WARN] Killing ... before we can
proceed to shutdown/reboot -- not OK. Don't know what I was smoking
back in 2017, but it must've been good.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
When running in a container we might not have the necessary privileges
to mount cgroups. Don't cause error in this case, just log it.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This patch allows disabling (enabled by default) the modprobe and tty
plugins. They are not particularly useful in container use-cases.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
We extend the service.sh to emulate a well behaving service that creates
and removes its own PID file.
The new test emulates a crash by sending SIGKILL to service.sh. We then
verify that Finit restarts it, and eventually registers the new PID when
the services recreates the PID file.
Issue #226
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
- We need a working /var and /run for some features, e.g. PID
monitoring and status files for urandom.so
- Add empty fstab to silence mount errors from finit
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
A regression was introduced by commit f0f358a1:
[ service.c: set/clear condition 'done' for run tasks ]
svc->type is a integer but mistakenly being used as string, which will
cause crash.
Signed-off-by: Ming Liu <liu.ming50@gmail.com>
Instead of unconditionally waiting 2 seconds for processes to die,
check continuously for remaining processes, and break the loop when
none remain.
Turn PID 1 to a RT process with highest priority 99 during shutdown,
this ensures it would not be preempted by other RT processes.
Signed-off-by: Robert Andersson <robert.m.andersson@atlascopco.com>
Signed-off-by: Mathias Thore <mathias.thore@atlascopco.com>
Signed-off-by: Ming Liu <liu.ming50@gmail.com>
We like to know when a runtask (run/task/sysv)is done, so as to start
the services that depending on it, set a oneshot condition 'done' for
that case and clear it when runtask services enter HALTED state.
Signed-off-by: Ming Liu <liu.ming50@gmail.com>
It should not use relaxed comparison in some places, otherwise it mess
up with scenarios like:
```
$ initctl status ntpdpre
$ initctl status ntpd
```
the output might be same for both of the above commands without this
fix.
Signed-off-by: Ming Liu <liu.ming50@gmail.com>
This patch adds the -v,--version option to initctl, which acts as an
alias to the 'version' command. For now they end up in the same old
function, printing the program version. However, in time this will be
changed so that the 'version' command asks a running Finit for its
version instead of assuming the daemon is of the same version.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
A 'module foo args ...' line in finit.conf can be looooooong. This
patch drops the module args from the progress output for brevity.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
With the introduction of GLIBC v2.34, all 32-bit devices running Linux
get the option of having a 64-bit time_t to survice the UNIX 2038
apocalypse.
Support for 64-bit time_t was added to libuev in v2.4.0. The build
flags for linking against libuev are defined in the library's .pc
files, which basically gives you -D_TIME_BITS=64 for your CPPFLAGS.
However, it turns out the $(uev_CFLAGS) from pkg-config were only used
when building the main finit binary -- not for the plugins, causing
some really wacky behavior as a result. All plugins and Finit itself
had some very different opinions on what `struct plugin` looked like,
including offsets and size. This led to all I/O plugins initializing
their sockets at the wrong offset -- little-endian 32-bit targets set
the HOOK_SHUTDOWN callback hook to address 0x1 -- which the reboot
code then tried to execute, of course leading to a segfault.
This is quite possibly the root cause of issue #216
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Previous patches only checked if cgroups v2 support was available in
the kernel. If mounting failed cgroups support was disabled.
However, much of the core logic to cgroups in Finit revolve around the
CPU controller. This patch adds checks to ensure that the kernel has
basic controller support as well.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This patch prevents bogus error messages from Finit for when
directories or symlinks already exist.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Joachim Wiberg