- Rename log_meta() → log_internal(), to follow naming scheme of most
other log functions that are usually invoked through macros, but never
directly.
- Rename log_info_object() to log_object_info(), simply because the
object should be before any other parameters, to follow OO-style
programming style.
log: add an "error" parameter to all low-level logging calls and intrdouce log_error_errno() as log calls that take error numbers
This change has two benefits:
- The format string %m will now resolve to the specified error (or to
errno if the specified error is 0. This allows getting rid of a ton of
strerror() invocations, a function that is not thread-safe.
- The specified error can be passed to the journal in the ERRNO= field.
Now of course, we just need somebody to convert all cases of this:
We got the following error when running systemd on a device with many ports:
"rtnl: kernel receive buffer overrun
Event source 'rtnl-receive-message' returned error, disabling: No buffer space
available"
I think the kernel socket receive buffer queue should be increased. The default
value is taken from:
"/proc/sys/net/core/rmem_default", but we can overwrite it using SO_RCVBUF
socket option.
This is already done in networkd for other sockets.
For example, the bus socket (sd-bus/bus-socket.c) has a receive queue of 8MB.
In our case, the default is 208KB.
Increasing the buffer receive queue for manager socket to 512KB should be enough
to get rid of the above error.
Loops in RR compression were only detected for the first entry.
Multiple redirections should be allowed, each one checking for an
infinite loop on its own starting point.
Also update the pointer on each redirection to avoid longer loops of
labels and redirections, in names like:
(start) [len=1] "A", [ptr to start]
(David: rename variable to "jump_barrier" and add reference to RFC)
Michal Schmidt [Thu, 27 Nov 2014 14:23:58 +0000 (15:23 +0100)]
core: fix transaction destructiveness check once more
The previous fix e0312f4db "core: fix check for transaction
destructiveness" broke test-engine (noticed by Zbyszek).
Apparently I had a wrong idea of the intended semantics of --fail.
The manpage says the operation should fail if it "conflicts with a
pending job (more specifically: causes an already pending start job to
be reversed into a stop job or vice versa)".
So let's check job_type_is_conflicting, instead of !is_superset.
This makes both test-engine and TEST-03-JOBS pass again.
David Herrmann [Thu, 27 Nov 2014 15:08:46 +0000 (16:08 +0100)]
resolve: fix NULL deref on strv comparison
A strv might be NULL if it is empty. The txt.strings comparison doesn't
take that into account. Introduce strv_equal() to provide a proper helper
for this and fix resolve to use it.
Thanks to Stanisław Pitucha <viraptor@gmail.com> for reporting this!
David Herrmann [Thu, 27 Nov 2014 12:49:41 +0000 (13:49 +0100)]
bus: prefix custom endpoints with "$UID-"
The kdbus module will later get a policy that endpoint-names are
restricted to "<uid>-<name>" just like bus-names. Make sure that systemd
is already compatible to that.
Peter Hutterer [Tue, 25 Nov 2014 11:35:16 +0000 (21:35 +1000)]
hwdb: add a new db for the DPI/frequency settings of mice
Pointer acceleration for relative input devices (mice, trackballs, etc.)
applies to the deltas of the device. Alas, those deltas have no physical
reference point - a delta of 10 may be caused by a large movement of a
low-dpi mouse or by a minute movement of a high-dpi mouse.
Which makes pointer acceleration a bit useless and high-dpi devices
essentially unusable.
In an ideal world, we could read the DPI from the device directly and work
with that. In the world we actually live in, we need to compile this list
manually. This patch introduces the database, with the usual match formats
and a single property to be set on a device: MOUSE_DPI
That is either a single value for most mice, or a list of values for mice
that can change resolution at runtime. The exact format is detailed in the
hwdb file.
Note that we're explicitly overshooting the requirements we have for
libinput atm. Frequency could be detected in software and we don't
actually use the list of multiple resolutions (because we can't detect
when they change anyway). However, we might as well collect those values
from the get-go, adding/modifying what will eventually amount to hundreds
of entries is a bit cumbersome.
Note: we rely on the input_id builtin to tag us as mouse first, ordering
of the rules is important.
(David: fixed up typos and moved hwdb file into ./hwdb/)
Andrej Manduch [Tue, 25 Nov 2014 19:47:49 +0000 (20:47 +0100)]
journalctl: print all possible lines immediately with --follow + --since
When I tryed to run journalctl with --follow and --since arguments it
behaved very strangely.
First It prints logs from what I specified in --since argument, then
printed 10 lines (as is default in --follow) and when app put something
new in to log journalctl printed everithing from the last printed line.
How to reproduce:
1. run: journalctl -m --since 14:00 --follow
Then you'll see 10 lines of logs since 14:00. After that wait until some
app add something in the journal or just run `systemd-cat echo test`
2. After that journalctl will print every single line since 14:00 and will
follow as expected.
As long as --since and --follow will eventually print all relevant
lines, I seen no reason why not to print them right away and not after
first new message in journal.
Gavin Li [Mon, 24 Nov 2014 23:51:31 +0000 (15:51 -0800)]
networkd: route - allow routes without a gateway
For IPv6, the kernel returns EINVAL if a route is added with the
RTA_GATEWAY attribute set to in6addr_any (::). A route without a
gateway is useful in some situations, such as layer 3 tunneling
(sit, gre, etc.).
This patch prevents the RTA_GATEWAY attribute from being added
when route.in_addr is ip6addr_any (::).
Josh Triplett [Wed, 29 Oct 2014 12:02:56 +0000 (05:02 -0700)]
Introduce CONF_DIRS_NULSTR helper to define standard conf dirs
Several different systemd tools define a nulstr containing a standard
series of configuration file directories, in /etc, /run, /usr/local/lib,
/usr/lib, and (#ifdef HAVE_SPLIT_USR) /lib. Factor that logic out into
a new helper macro, CONF_DIRS_NULSTR.
journald: proceed even if some sockets are unknown
systemd-journald would refuse to start if it received an unknown
socket from systemd. This is annoying, because the failure more for
systemd-journald is unpleasant: systemd will keep restarting journald,
but most likely the same error will occur every time. It is better
to continue. journald will try to open missing sockets on its own,
so things should mostly work.
One question is whether to close the sockets which cannot be parsed or
to keep them open. Either way we might lose some messages. This
failure is most likely for the audit socket (selinux issues), which
can be opened multiple times so this not a problem, so I decided to
keep them open because it makes it easier to debug the issue after the
system is fully started.
systemd stops adding automatic dependencies on swap.target to swap
units. If a dependency is required, it has to be added by unit
configuration. fstab-generator did that already, except that now it is
modified to create a Requires or Wants type dependency, depending on
whether nofail is specified in /etc/fstab. This makes .swap units
obey the nofail/noauto options more or less the same as .mount units.
Documentation is extended to clarify that, and to make
systemd.mount(5) and system.swap(5) more similar. The gist is not
changed, because current behaviour actually matches existing
documentation.
This adds a new log_emergency() function, which is equivalent to
log_error() for non-PID-1, and logs at the highest priority for PID 1.
Some messages which occur before freezing are converted to use it.
Michal Schmidt [Wed, 26 Nov 2014 15:33:46 +0000 (16:33 +0100)]
core: fix check for transaction destructiveness
When checking if the transaction is destructive, we need to check if the
previously installed job is a superset of the new job (and hence the new
job will fold into the installed one without changing it), not the other
way around.
Michal Schmidt [Wed, 26 Nov 2014 15:33:43 +0000 (16:33 +0100)]
core: fix assertion failure in checking a transaction with a JOB_NOP
Several functions called from transaction_activate() need to correctly
handle the case where a JOB_NOP job is being checked against a unit's
pending job. The assumption that JOB_NOP never merges with other job
types was correct, but since the job_type_is_*() functions are
implemented using the merge lookup, they need to special-case JOB_NOP
to avoid hitting assertion failures.
This makes udevadm trigger mirror udevadm info, except that multiple
device names can be specified. Instructions in 60-keyboard.hwdb should
now actually work.
udevadm(8) is updated, but it could use a bit more polishing.
sd-bus: set per-bus attach flag requirement mask to ANY
On the system and user busses we create it's the receiver that chooses
which metadata is attched, not the sender, hence set the requirement
mask to ANY, to allow any current of future credential bit to be
attached.
sd-bus: update to current kernel version, by splitting off the extended KDBUS_ITEM_PIDS structure from KDBUS_ITEM_CREDS
Also:
- adds support for euid, suid, fsuid, egid, sgid, fsgid fields.
- makes augmentation of creds with data from /proc explicitly
controllable to give apps better control over this, given that this is
racy.
- enables augmentation for kdbus connections (previously we only did it
for dbus1). This is useful since with recent kdbus versions it is
possible for clients to control the metadata they want to send.
- changes sd_bus_query_sender_privilege() to take the euid of the client
into consideration, if known
- when we don't have permissions to read augmentation data from /proc,
don't fail, just don't add the data in