This patch adds a rescue (revovery) mode to Finit. Simply add `rescue`
to the kernel cmdline at boot and the following steps at bootstrap will
be skipped:
- Load of services/run/task/etc in /etc/finit.conf + /etc/finit.d/*.conf
- fsck of filesystems in /etc/fstab
- Remount of / to read-write
- Mount of all filesystems in /etc/fstab
- swapon
- A few plugin hooks:
- HOOK_ROOTFS_UP
- HOOK_MOUNT_ERROR
- HOOK_BASEFS_UP
- `runparts DIR`
- /etc/rc.local
Instead of loading /etc/finit.conf and /etc/finit.d/*.conf Finit loads
the file /lib/finit/rescue.conf, which can be overridden by the operator
if needed. If this file is removed (or lost), Finit falls back to start
a simple root shell, without any login.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch is an optimization. Now that we monitor for any .conf file
changes (as soon as the event loop starts) we can skip automatic reload
of all .conf files and services if no .conf file has changed. Unless
the user issues an `initctl reload`, `init q`, or sends us SIGHUP.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Until now Finit has used mtime to determine if a file has been changed,
or simply touched to request reload, when `initctl reload` is called.
Using mtime for this purpose is a monumentally bad idea since time can
be changed at any point: a user may adjust the time, NTP continously
tunes the clock, and time stamps are stored as the walltime. So if we
compare timestamps against the last time we (booted or) did reload, we
would miss .conf file changes.
This patch replaces the mtime mistake with an inotify watcher for the
following files: /etc/finit.d/*.conf, /etc/finit.d/available/*.conf,
and /etc/finit.conf. All file changes between (bootstraps and) calls
to `initctl reload` are tracked, like the mtime backend it replaces.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The following configuration directives, previously only allowed
in /etc/finit.conf, are now also only allowed in runlevel S, i.e.
at bootstrap:
- host
- mknod
- network
- runparts
- runlevel
This change is in preparation for allowing reload of finit.conf
as well as /etc/finit.d/*.conf, which we already support.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch extends the existing rlimit implementation to support setting
limits per service, run/task, inetd, and tty.
Use rlimit in /etc/finit.conf to change the global setting, which is
then inherited to each /etc/finit.d/*.conf. For each .conf file the
rlimit is reinitialized to the global finit.conf settings.
Also, add `unlimited` keyword, to replace the now deprecated `infinity`
keyword. The latter is however kept, for compatibility with previous
releases, for the foreseeable future.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Most Linux distributions, embedded or otherwise, do not need this
and only confuses the user of an OS with Finit.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
All this code did was trigger prctl() to set process name to "console",
which you could use as a simple means of figuring out if a process was
started from the system console.
There are other ways to do this, which Finit should not be involved in.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
In GCC 7 the -Wall infers the new -Wformat-truncation which finds
problems with string truncation in functions like snprintf().
This patch fixes a possibly problem in path name creation which,
combined with the scandir() function, might cause loss of .conf
files, failure to call run-parts properly, and kill services at
shutdown.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch enables support for bootstrap services in /etc/finit.d/
Please note, however, that this does not mean that all configuration
directives are now allowed in /etc/finit.d/*.conf -- the intention is
only to simplify distribution setups.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
It is strongly recommended to instead use the service stanza to start
XDM/GDM, or use startx after a regular login.
Note: the `user NAME` setting was always reserved for use with startx
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
In commit eec32e2 support for reloading TTY configurations was added.
This patch is a follow-up to that with support for cleaning up and
removing allocated TTYs.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
With the new scheme using /etc/finit.d/available/, and symlinks from
there to the enabled directory, we need to check mtime of .conf files
using stat(), not lstat() which we need to check if .conf is a symlink.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Since at least a44daf2 both run() and run_interactive() can access all
system tools in _PATH_STDPATH. A system that uses non-standard paths,
e.g. /system/bin and /apps/bin, should update _PATH_STDPATH.
For reference, see issue #69 and PRs #70 and #72.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch is a follow-up to 1f1c2e0 which introduced the new semantics
for the very confusing quiet and silent modes.
The initial idea was to loosely follow the kernel cmdline 'quiet' option
and as a working concept this was good. The resulting code, however,
became unnecessarily complex and the configure options impossible to
explain.
With this patch the quiet mode, and thus the --disable-quiet configure
option, is removed. Finit now defaults to a sane behavior: services are
shown only at startup. The --enable-silent option works like it did
before, silencing everything.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Joachim Nilsson