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Thanks to Cristian Ciupitu for a reproducer.
https://bugzilla.redhat.com/show_bug.cgi?id=924359
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There's now a generic _cleanup_ macro with an argument. The macros for
specific types are now defined using this macro, and in the header files
where they belong.
All cleanup handlers are now inline functions.
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containers there
Containers will now carry a label (normally derived from the root
directory name, but configurable by the user), and the container's root
cgroup is /machine/<label>. This label is called "machine name", and can
cover both containers and VMs (as soon as libvirt also makes use of
/machine/).
libsystemd-login can be used to query the machine name from a process.
This patch also includes numerous clean-ups for the cgroup code.
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<fcntl.h> is POSIX. On Linux, <sys/fcntl.h> simply includes
<fcntl.h>, so there should be on difference. On Android
likewise, except that there is some more stuff. QNX has
only <fcntl.h>.
https://bugs.freedesktop.org/show_bug.cgi?id=63423
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https://bugs.freedesktop.org/show_bug.cgi?id=63477
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Avoid the dynamic allocation for the _UID, _GID, and _PID strings.
The maximum size of the string can be determined at compile time.
The code has only been compile tested.
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When systemd was compiled without audit support, do not collect the
audit session and loginuid in the journal. This is saving a couple of
syscalls and memory allocations per log message.
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This would break backwards skipping.
https://bugs.freedesktop.org/show_bug.cgi?id=63250
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Before, we would initialize many fields twice: first
by filling the structure with zeros, and then a second
time with the real values. We can let the compiler do
the job for us, avoiding one copy.
A downside of this patch is that text gets slightly
bigger. This is because all zero() calls are effectively
inlined:
$ size build/.libs/systemd
text data bss dec hex filename
before 897737 107300 2560 1007597 f5fed build/.libs/systemd
after 897873 107300 2560 1007733 f6075 build/.libs/systemd
… actually less than 1‰.
A few asserts that the parameter is not null had to be removed. I
don't think this changes much, because first, it is quite unlikely
for the assert to fail, and second, an immediate SEGV is almost as
good as an assert.
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calls/signals in one call
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Let's do the wake-up logic on NFS internally, making things simpler for
users.
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This function should be used when filling in "struct pollfd"'s .events
field for watching the journal. It will always return POLLIN for now,
but we should keep our options open to change this later on.
This mimics libsystemd-bus' sd_bus_get_events() call with the same
purpose.
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Instead of outputting "5h 55s 50ms 3us" we'll now output "5h
55.050003s". Also, while outputting the accuracy is configurable.
Basically we now try use "dot notation" for all time values > 1min. For
>= 1s we use 's' as unit, otherwise for >= 1ms we use 'ms' as unit, and
finally 'us'.
This should give reasonably values in most cases.
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Internally we store all time values in usec_t, however parse_usec()
actually was used mostly to parse values in seconds (unless explicit
units were specified to define a different unit). Hence, be clear about
this and name the function about what we pass into it, not what we get
out of it.
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code in src/shared/macro.h only defined MAX/MIN in case
they were not defined previously. however the MAX/MIN
macros implemented in glibc are not of the "safe" kind but defined
as:
define MIN(a,b) (((a)<(b))?(a):(b))
define MAX(a,b) (((a)>(b))?(a):(b))
Avoid nasty side effects by using our own versions instead.
Also fix the warnings derived from this change.
[zj: - modify MAX3 macro to fix warning about _a shadowing _a,
- do bootchart/svg.c too,
- remove unused MIN3.]
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Sentence seemed to suggest that all three conditions must be true.
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Since journal-gatewayd is now running unprivileged, and detecting
virtalization requires privileges, query PID1 via D-Bus for the used
virtualization.
This is also the first time we use libsystemd-bus for more than just
testing.
https://bugs.freedesktop.org/show_bug.cgi?id=62173
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grawity> `journalctl --update-catalog` from latest git prints:
"Recursive mkdir .: Invalid argument" and
"Failed to write : Invalid argument"
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In order to write tests for the catalog functions, they
are made non-static and start taking a 'database' parameter,
which is the name of a file with the preprocessed catalog
entries.
This makes it possible to make test-catalog part of the
normal test suite, since it now only operates on files
in /tmp.
Some more tests are added.
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Coverity complains: systemd-199/src/journal/catalog.c:126:
buffer_size_warning: Calling strncpy with a maximum size argument of
32 bytes on destination array "i->language" of size 32 bytes might
leave the destination string unterminated.
...and unfortunately it was right. The string was defined as a
fixed-size string in some parts of the code, and used a
null-terminated string in others (e.g. in log statements). There's no
point in conserving one byte, so just define the max language tag
length to 31 bytes, and use null terminated strings everywhere.
Also, wrap some lines, zero-fill less bytes, use '\0' instead of just
0 to be more explicit that this is one byte.
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Previously r was set to zero and so if(r<0) was never true.
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It does not make sense to print error code from previous loop.
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Add option to force journal sync with fsync. Default timeout is 5min.
Interval configured via SyncIntervalSec option at journal.conf. Synced
journal files will be marked as OFFLINE.
Manual sync can be performed via sending SIGUSR1.
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Setting MaxRetentionSec= caused the kernel log to overflow and the
journal daemon to enter an endless loop.
Logging from the journald main loop gets directed to /dev/kmsg,
which wakes up journald again. We skip the import of this message
by checking for our own PID, but this still causes the main loop
to never go to sleep again because we never stopped logging from
there.
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https://bugs.freedesktop.org/show_bug.cgi?id=62605
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- Reword messages a bit
- Correct check whether EACCES is in the set of errors
- Don't complain if no journal files are found
- allocate Set object for errors lazily since in the best case we don't
need it at all.
- don't consider it an error if /run/log/journal doesn't exist (because
that's the usual case actually, if storage is enabled)
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There are many ways in which we can get those checks wrong, so it is
better to warn and then error out on a real access failure.
The error messages are wrapped to <80 lines, because their primary
use is to be displayed in the terminal, and it is easier to read them
this way. Reading them in the journal can be a bit trickier, but
this is a bug in logs-show.c.
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This loop over acls is a bit too much to keep inside
of another loop.
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/var/log/journal
If we notice that we unprivileged and not in any of the groups which
have access to /var/log/journal, print a nice message about which groups
do.
This checks and prints all groups that are in the default ACL for
/var/log/journal, which is not necessarily correct for all journal
files, but pretty close.
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The vacuum code used to stop vacuuming after one deletion, even
when max_use was still exceeded.
Also make usage a uint64_t, as the code already pretends it is one.
Signed-off-by: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
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library
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The ability to dump catalog entries in full and by id is added.
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Seems natural to be able to specify relative directory,
e.g. with journalctl -D. And even if, this should be checked
in front-end code, not in the library.
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One log_debug() moved to match order in other functions.
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