According to RFC 6762 Section 8.2 "Simultaneous Probe Tiebreaking"
probing queries' Authority Section is populated with proposed
resource records in order to resolve possible race conditions.
From RFC 6762, Section 10.2
"They (the rules about when to set the cache-flush bit) apply to
startup announcements as described in Section 8.3, "Announcing",
and to responses generated as a result of receiving query messages."
So, set the cache-flush bit for mDNS answers except for DNS-SD
service enumerattion PTRs described in RFC 6763, Section 4.1.
According to p5.3 of RFC6762 (Multicast DNS) one mDNS query message
can contain more than one question sections.
Generate answers for all found questions and put them to a reply
message.
Update detect_vm_xen_dom0 to propagate errors in case reading
/proc/xen/capabilites fails. This does not fix any bugs, it just makes
it consistent with other functions called by detect_vm.
If the user modifies configuration, e.g. /etc/fstab, they might forget to tell
systemd about the changes. Let's do a reload for them.
Note that doing a reload should be safe, because emergency and rescue modes are
"single threaded" and nothing should be doing changes at the point where we are
exiting from the sushell. Also, daemon-reload can be implicitly called at
various moments, so we can ignore the case where the user did some incompatible
changes on disk and is counting on systemd never reloading and picking them up.
C.f. #7565.
This is actually slightly safer because it allows gcc to make sure that all code
paths either call return or are noreturn. But the real motivation is just to
follow the usual style and make it a bit shorter.
The tainting logic existed for a long time, but was hidden inside the
bus interfaces. Let's give it a small bit more coverage, by logging its
value early at boot during initialization.
Now that we can configure which controllers to delegate precisely, let's
limit wht we delegate to the user session: only "cpu" and "pids" as a
minimal baseline.
Fixes: #1715
When no entries matches with entry_oneshot, entry_default and
default_pattern, then log message shows a wrong entry.
Moreover, if none of entry_oneshot, entry_default and default_pattern
are set, then the index `i` is uninitialized.
This fixes such problem.
This moves the invocation a bit later, but that shoudln't matter. By
moving it we gain two things: first of all, its closer to other code
where it belongs, secondly its naturally conditioned properly, as we no
longer will rewrite the container ID file on every reexecution again,
and not in test mode either.
No real functional changes, just some rearranging to shorten the overly
long main() function a bit.
This gets rid of the arm_reboot_watchdog variable, as it can be directly
derived from shutdown_verb, and we need it only one time. By dropping it
we can reduce the number of arguments we need to pass around.
