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Let's pick up the boot ID early if unspecified, in
journal_file_append_entry(). This is symmetric to the fact that we
already pick up the monotonic timestamp in journal_file_append_entry()
if unspecified, and given that the monotonic clock is not too useful
without its boot ID it makes a lot of sense to pick them up at the same
time.
There are two relevant callers of journal_file_append_entry() right now:
journald (which leaves the boot ID unspecified) and journal-remote
(there are also some tests, but those don't matter too much). The former
calls it to store new entries in the journal file, the latter for
converting/processing/merging existing ones (where it passes along the
original boot ID). This new code hence only is relevant on the former,
and using the boot ID of the current system is the right choice for live
generated entries.
Note that this effectively changes little, since the lower-level
function journal_file_append_entry_internal() will copy boot ID stored
in the file header into all records if unspecified, and typically that's
the one of the local system. But strictly speaking this is not the right
thing to do, since we actually might end up appending to journal files
from previous boots. (The lower level function is indirectly used by
various tests, where the copying-from-header logic kinda makes sense
since they are detached from any live messages streaming in from the
host after all).
This is a follow-up for 1d8d483f59 and
makes the strict ordering by realtime clock within each journal file
optional, not mandatory. It then enables it for all journal files
written by journald, but leaves it off on others (for example those
written by journald-remote).
This relaxes the logic behind writing journal files to the status quo
ante for all cases where the journal files are not generated, but are
merged/processed/propagated. Typically when processing journal records
from many files ordering by realtime clock and monotonic clock are
contradictory, and cannot be universally guaranteed as the records are
interleaved. By enforcing strict rules we would thus end up generating
myriads of separate journal files, each with just a few records in them.
Hence, let's losen restrictions again, but continue to enforce them in
journald, i.e. when we original create the journal files locally.
Note that generally there's nothing really wring with having journal
files with non-monotonically ordered entries by realtime clock. Looking
for records will not be deterministic anymore, but that's inherent to a
realtime clock that jumps up and down. So you won't get the "only"
answer, but still *a* answer that is correct if you seek for a realtime
clock.
This also adds similar logic on the monotonic clock, which is also only
enabled when generating journal files locally. This should be harder to
trigger (as journald will generate the messages, and should run with a
stable boot id and monotonic clock), but let's better be safe than
sorry, and refuse on the lower layer what makes no sense, even if it's
unlikely the higher layer will ever generate records that aren't ordered
by their monotonic clock.
linux/btrfs.h needs to be included after sys/mount.h, as since [0]
linux/btrfs.h includes linux/fs.h causing build errors:
```
In file included from /usr/include/linux/fs.h:19,
from ../src/basic/linux/btrfs.h:29,
from ../src/partition/growfs.c:6:
/usr/include/sys/mount.h:35:3: error: expected identifier before numeric constant
35 | MS_RDONLY = 1, /* Mount read-only. */
| ^~~~~~~~~
[1222/2169] Compiling C object systemd-creds.p/src_creds_creds.c.o
ninja: build stopped: subcommand failed.
```
See: https://github.com/systemd/systemd/issues/8507
[0] a28135303a
IPPROTO_L2TP was moved from linux/l2tp.h to linux/in.h [0], so let's
reflect that change to fix build with newer kernels:
```
In file included from ../src/libsystemd/sd-netlink/netlink-types-genl.c:10:
../src/basic/linux/l2tp.h:16: error: "IPPROTO_L2TP" redefined [-Werror]
16 | #define IPPROTO_L2TP 115
|
In file included from ../src/libsystemd/sd-netlink/netlink-types-genl.c:3:
/usr/include/netinet/in.h:85: note: this is the location of the previous definition
85 | #define IPPROTO_L2TP IPPROTO_L2TP
|
cc1: all warnings being treated as errors
```
When at it, update the rest of the headers we ship as well.
[0] 65b32f801b
Follow-ups for 8702496bfb.
- add missing error cause in logging,
- add several missing assertions,
- drop an unnecessary initialization,
- make boot_config_find_in() return negative errno if nothing found,
- and several coding style fixlets.
Follow-ups for #26124 and #26158.
- use os_release_pretty_name(),
- constify the buffer passed to inspect_osrel(),
- propagate errors in inspect_osrele(), and ignore them in the caller
side,
- and several coding style fixlets.
Since the empty_to_null() function was "macrofied", we need to use a bit
of black magic to make Coccinelle avoid running the transformation on
the macro itself.
Follow-up to ef2409cbde.
When compiled without ENABLE_EFI, efi_stub_measured() was not defined, so
compilation would fail. But it's not enough to add a stub that returns
-EOPNOTSUPP. We call this function in various places and usually print the error
at warning or error level, so we'd print a confusing message. We also can't add
a stub that always returns 0, because then we'd print a message like "Kernel
stub did not measure", which would be confusing too. Adding special handling for
-EOPNOTSUPP in every caller is also unattractive. So instead efi_stub_measured()
is reworked to log the warning or error internally, and such logging is removed
from the callers, and a stub is added that logs a custom message.
Let's port one more over.
Note that this changes behaviour of file_in_same_dir() in some regards.
Specifically, a trailing slash of the input path will be treated
differently: previously we'd operate below that dir then, instead of the
parent. I think that makes little sense however, and I think the code
using this function doesn't expect that either.
Moroever, addresses some corner cases if the path is specified as "/" or
".", i.e. where e cannot extract a parent. These will now be treated as
error, which I think is much cleaner.
