backlight: include ID_PATH in file names for backlight settings
Much like for rfkill devices we should provide some stability regarding
enumeration order, hence include the stable bits of the device path in
the file name we store settings under.
rfkill: use ID_PATH as identifier for rfkill state files
Let's include the stable device path for the rfkill devices in the name
of the file we store the rfkill state in, so that we have some stability
regarding enumeration order.
Bastien Nocera [Mon, 14 Oct 2013 06:15:51 +0000 (08:15 +0200)]
shared/util: Fix glob_extend() argument
glob_extend() would completely fail to work, or return incorrect
data if it wasn't being passed the current getopt "optarg" variable
as it used the global variable, instead of the passed parameters.
util: allow trailing semicolons on define_trivial_cleanup_func lines
Emacs C indenting really gets confused by these lines if they carry no
trailing semicolon, hence let's make this nicer for good old emacs. The
other macros which define functions already do this too, so let's copy
the scheme here.
Also, let's use an uppercase name for the macro. So far our rough rule
was that macros that are totally not function-like (like this ones,
which define a function) are uppercase. (Well, admittedly it is a rough
rule only, for example function and variable decorators are all
lower-case SINCE THE CONSTANT YELLING IN THE SOURCES WOULD SUCK, and
also they at least got underscore prefixes.) Also, the macros that
define functions that we already have are all uppercase, so let's do the
same here...
The code was actually safe, because b should
never be null, because if rvalue is empty, a different
branch is taken. But we *do* check for NULL in the
loop above, so it's better to also check here for symmetry.
Since the invention of read-only memory, write-only memory has been
considered deprecated. Where appropriate, either make use of the
value, or avoid writing it, to make it clear that it is not used.
If the function failed, nothing serious would happen
because unlink would probably return EFAULT, but this
would obscure the real error and is a bit sloppy.
This extends 62678ded 'efi: never call qsort on potentially
NULL arrays' to all other places where qsort is used and it
is not obvious that the count is non-zero.
bus: don't rely on gccisms/c11 in public header files.
One day sd-bus.h should become a public header file. We generally try to
be conservative in language features we use in public headers (much
unlike in private code), hence don't make use of anonymous unions in
structs for the vtable definitions.
Quit handlers are executed when an event loop is terminated via
sd_event_request_quit(). They are in a way atexit() handlers that are
executed in a well-defined environment, time and thread: from the event
loop thread when the event loop finishes.
In order to improve energy consumption we should minimize our wake-ups
when handling timers. Hence, for each timer take an accuracy value and
schedule the actual wake-up time somewhere between the specified time
and the specified timer plus the accuracy.
The specified time of timer event sources hence becomes the time the
handler is called the *earliest*, and the specified time plus the accuracy
the time by which it is called the *latest*, leaving the library the
freedom to schedule the wake-up somewhere inbetween.
If the accuracy is specified as 0 the default of 250ms will be used.
When scheduling timeouts we will now try to elapse them at the same
point within each second, across the entire system. We do this by using
a fixed perturbation value keyed off the boot id. If this point within a
second is not in the acceptable range, we try again with a fixed time
within each 250ms time step. If that doesn't work either, we wake up at
the last possible time.
So far we tried to use epoll directly wherever we needed an event loop.
However, that has various shortcomings, such as the inability to handle
larger amounts of timers (since each timerfd costs one fd, which is a
very limited resource, usually bounded to 1024), and inability to do
priorisation between multiple queued events.
Let's add a minimal event loop API around epoll that is suitable for
implementation of our own daemons and maybe one day can become public
API for those who desire it.
This loop is part of libsystemd-bus, but may be used independently of
it.
journald: remove rotated file from hashmap when rotation fails
Before, when the user journal file was rotated, journal_file_rotate
could close the old file and fail to open the new file. In that
case, we would leave the old (deallocated) file in the hashmap.
On subsequent accesses, we could retrieve this stale entry, leading
to a segfault.
When journal_file_rotate fails with the file pointer set to 0,
old file is certainly gone, and cannot be used anymore.
Auke Kok [Wed, 9 Oct 2013 17:52:15 +0000 (10:52 -0700)]
Smack: Test if smack is enabled before mounting
Since on most systems with xattr systemd will compile with Smack
support enabled, we still attempt to mount various fs's with
Smack-only options.
Before mounting any of these Smack-related filesystems with
Smack specific mount options, check if Smack is functionally
active on the running kernel.
If Smack is really enabled in the kernel, all these Smack mounts
are now *fatal*, as they should be.
We no longer mount smackfs if systemd was compiled without
Smack support. This makes it easier to make smackfs mount
failures a critical error when Smack is enabled.
We no longer mount these filesystems with their Smack specific
options inside containers. There these filesystems will be
mounted with there non-mount smack options for now.
Martin Pitt [Wed, 9 Oct 2013 14:05:15 +0000 (16:05 +0200)]
keymap: Fix Samsung 900X[34]C
It appears that it's not really the 900 vs. 940 or the X3 vs X4, but the
A/B/C/D suffix after that which makes the difference between the keymaps. On a
NP900X3C-A04RU you get
libsystemd-bus: add lightweight object vtable implementation for exposing objects on the bus
This adds a lightweight scheme how to define interfaces in static fixed
arrays which then can be easily registered on a bus connection. This
makes it much easier to write bus services.
This automatically handles implementation of the Properties,
ObjectManager, and Introspection bus interfaces.
Sylvia Else [Mon, 7 Oct 2013 03:06:35 +0000 (23:06 -0400)]
systemd: serialize/deserialize forbid_restart value
The Service type's forbid_restart field was not preserved by
serialization/deserialization, so the fact that the service should not
be restarted after stopping was lost.
If a systemctl stop foo command has been given, but the foo service
has not yet stopped, and then the systemctl --system daemon-reload was
given, then when the foo service eventually stopped, systemd would
restart it.
We already shew lines in full when using a pager or not on a
tty. The commit disables ellipsization in the sole remaining case,
namely when --follow is used.
This has been a popular request for a long time, and indeed, full
output seems much more useful. Old behaviour can still be requested by
using --no-full. Old options retain their behaviour for compatiblity,
but aren't advertised as much. This change applies only to jornalctl,
not to systemctl, when ellipsization is useful to keep the layout.
Allows the systemd --system process to change its current
SMACK label to a predefined custom label (usually "system")
at boot time.
This is needed to have a few system-generated folders and
sockets automatically be created with the right SMACK
label. Without that, processes either cannot communicate with
systemd or systemd fails to perform some actions.
Mount /run, /dev/shm usable to tasks when using SMACK.
Once systemd itself is running in a security domain for SMACK,
it will fail to start countless tasks due to missing privileges
for mounted and created directory structures. For /run and shm
specifically, we grant all tasks access.
These 2 mounts are allowed to fail, which will happen if the
system is not running a SMACK enabled kernel or security=none is
passed to the kernel.
systemd: order remote mounts from mountinfo before remote-fs.target
Usually the network is stopped before filesystems are umounted.
Ordering network filesystems before remote-fs.target means that their
unmounting will be performed earlier, and can terminate sucessfully.