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Session objects will now get the .session suffix, user objects the .user
suffix, nspawn containers the .nspawn suffix.
This also changes the user cgroups to be named after the numeric UID
rather than the username, since this allows us the parse these paths
standalone without requiring access to the cgroup file system.
This also changes the mapping of instanced units to cgroups. Instead of
mapping foo@bar.service to the cgroup path /user/foo@.service/bar we
will now map it to /user/foo@.service/foo@bar.service, in order to
ensure that all our objects are properly suffixed in the tree.
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This reverts commit 4826f0b7b5c0aefa08b8cc7ef64d69027f84da2c.
Because statfs.t_type can be int on some architecures, we have to cast
the const magic to the type, otherwise the compiler warns about
signed/unsigned comparison, because the magic can be 32 bit unsigned.
statfs(2) man page is also wrong on some systems, because
f_type is not __SWORD_TYPE on some architecures.
The following program:
int main(int argc, char**argv)
{
struct statfs s;
statfs(argv[1], &s);
printf("sizeof(f_type) = %d\n", sizeof(s.f_type));
printf("sizeof(__SWORD_TYPE) = %d\n", sizeof(__SWORD_TYPE));
printf("sizeof(long) = %d\n", sizeof(long));
printf("sizeof(int) = %d\n", sizeof(int));
if (sizeof(s.f_type) == sizeof(int)) {
printf("f_type = 0x%x\n", s.f_type);
} else {
printf("f_type = 0x%lx\n", s.f_type);
}
return 0;
}
executed on s390x gives for a btrfs:
sizeof(f_type) = 4
sizeof(__SWORD_TYPE) = 8
sizeof(long) = 8
sizeof(int) = 4
f_type = 0x9123683e
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direction.
https://bugs.freedesktop.org/show_bug.cgi?id=63672
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This reverts commit a858b64dddf79177e12ed30f5e8c47a1471c8bfe.
This reverts commit aea275c43194b6ac519ef907b62c5c995050fde0.
This reverts commit fc6e6d245ee3989c222a2a8cc82a33475f9922f3.
This reverts commit c4073a27c555aeceac87a3b02a83141cde641a1e.
This reverts commit cddf148028f525be8176e7f1cbbf4f862bd287f6.
This reverts commit 8c68a70170b31f93c287f29fd06c6c17edaf19ad.
The constants are now casted to __SWORD_TYPE, which should resolve the
compiler warnings about signed vs unsigned.
After talking to Kay, we concluded:
This should be fixed in the kernel, not worked around in userspace tools.
Architectures cannot use int and expect magic constants lager than INT_MAX
to work correctly. The kernel header needs to be fixed.
Even coreutils cannot handle it:
#define RAMFS_MAGIC 0x858458f6
# stat -f -c%t /
ffffffff858458f6
#define BTRFS_SUPER_MAGIC 0x9123683E
# stat -f -c%t /mnt
ffffffff9123683e
Although I found the perfect working macro to fix the thing :)
__extension__ ({ \
bool _ret = false; \
switch(f) { case c: _ret=true; }; \
( _ret ); \
})
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http://lists.freedesktop.org/archives/systemd-devel/2013-April/010510.html
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On some architectures (like s390x) the kernel has the type int for
f_type, but long in userspace.
Assigning the 32 bit magic constants from linux/magic.h to the 31 bit
signed f_type in the kernel, causes f_type to be negative for some
constants.
glibc extends the int to long for those architecures in 64 bit mode, so
the negative int becomes a negative long, which cannot be simply
compared to the original magic constant, because the compiler would
automatically cast the constant to long.
To workaround this issue, we also compare to the (int)MAGIC value in a
macro. Of course, we could do #ifdef with the architecure, but it has to
be maintained, and the magic constants are 32 bit anyway.
Someday, when the int is unsigned or long for all architectures, we can
remove this macro again. Until then, keep it as simple as it can be.
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Instead of making a type up, just use __SWORD_TYPE, after reading
statfs(2).
Too bad, this does not fix s390x because __SWORD_TYPE is (long int) and
the kernel uses (int) to fill in the field!!!!!!
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statfs.f_type is signed but the filesystem magics are unsigned.
Casting the magics to signed will not make the signed.
Problem seen on big-endian 64bit s390x with __fsword_t 8 bytes.
Casting statfs.f_type to unsigned on the other hand will get us what we
need.
https://bugzilla.redhat.com/show_bug.cgi?id=953217
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Previously only one "--unit=" or "--user-unit" could be specified.
With this patch, journalcrtl can show multiple units.
$ journalctl -u systemd-udevd.service -u sshd.service -u crond.service -b
-- Logs begin at Sa 2013-03-23 11:08:45 CET, end at Fr 2013-04-12
09:10:22 CEST. --
Apr 12 08:41:37 lenovo systemd[1]: Started udev Kernel Device Manager.
Apr 12 08:41:37 lenovo systemd[1]: Stopped udev Kernel Device Manager.
Apr 12 08:41:38 lenovo systemd[1]: Started udev Kernel Device Manager.
Apr 12 08:41:38 lenovo crond[291]: (CRON) INFO (Syslog will be used
instead of sendmail.)
Apr 12 08:41:38 lenovo crond[291]: (CRON) INFO (running with inotify
support)
Apr 12 08:41:39 lenovo systemd[1]: Starting OpenSSH server daemon...
Apr 12 08:41:39 lenovo systemd[1]: Started OpenSSH server daemon.
Apr 12 08:41:39 lenovo sshd[355]: Server listening on 0.0.0.0 port 22.
Apr 12 08:41:39 lenovo sshd[355]: Server listening on :: port 22.
Apr 12 08:41:39 lenovo mtp-probe[373]: checking bus 1, device 8:
"/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5.6/1-1.5.6.2/1-1.5.6.2.1"
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When using "-p" and "-b" in combination with "-u", the output is not
what you would expect. The reason is the sd_journal_add_disjunction()
call in add_matches_for_unit() and add_matches_for_user_unit(), which
adds two ORs without taking the other conditions to every OR.
Adding another level on top with AND and sd_journal_add_conjunction()
solves the problem.
Output before:
$ journalctl -o short-monotonic -ab -p 0 -u sshd.service
-- Reboot --
[ 3.216305] lenovo systemd[1]: Starting OpenSSH server daemon...
-- Reboot --
[ 3.168666] lenovo systemd[1]: Starting OpenSSH server daemon...
[ 3.169639] lenovo systemd[1]: Started OpenSSH server daemon.
[36285.635389] lenovo systemd[1]: Stopped OpenSSH server daemon.
-- Reboot --
[ 10.838657] lenovo systemd[1]: Starting OpenSSH server daemon...
[ 10.913698] lenovo systemd[1]: Started OpenSSH server daemon.
[ 6881.035183] lenovo systemd[1]: Stopped OpenSSH server daemon.
-- Reboot --
[ 6.636228] lenovo systemd[1]: Starting OpenSSH server daemon...
[ 6.662573] lenovo systemd[1]: Started OpenSSH server daemon.
[ 6.681148] lenovo sshd[397]: Server listening on 0.0.0.0 port 22.
[ 6.681379] lenovo sshd[397]: Server listening on :: port 22.
As we see, the output is from _every_ boot and priority 0 is not taken
into account.
Output after patch:
$ journalctl -o short-monotonic -ab -p 0 -u sshd.service
-- Logs begin at Sun 2013-02-24 20:54:44 CET, end at Tue 2013-03-19 14:58:21 CET. --
Increasing the priority:
$ journalctl -o short-monotonic -ab -p 6 -u sshd.service
-- Logs begin at Sun 2013-02-24 20:54:44 CET, end at Tue 2013-03-19 14:59:12 CET. --
[ 6.636228] lenovo systemd[1]: Starting OpenSSH server daemon...
[ 6.662573] lenovo systemd[1]: Started OpenSSH server daemon.
[ 6.681148] lenovo sshd[397]: Server listening on 0.0.0.0 port 22.
[ 6.681379] lenovo sshd[397]: Server listening on :: port 22.
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I see little point in silently truncating fields when
they are explictly requested. With this change e.g.
journalctl -b MESSAGE_ID=9f26aa562cf440c2b16c773d0479b518 --field=BOOTCHART
works as expected.
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The information about the unit for which files are being parsed
is passed all the way down. This way messages land in the journal
with proper UNIT=... or USER_UNIT=... attribution.
'systemctl status' and 'journalctl -u' not displaying those messages
has been a source of confusion for users, since the journal entry for
a misspelt setting was often logged quite a bit earlier than the
failure to start a unit.
Based-on-a-patch-by: Oleksii Shevchuk <alxchk@gmail.com>
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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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