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After fe841414ef, broadcast address is
also compared with existing one to determine whether the address is
foregin or not. So, the address object should not contain unnecessary
information.
Fixes#17803.
Either suppress the entry entirely, or not at all. But do not suppress
the "localhost" names we recognize, leaving the ones we do not in place.
On Fedora, where "localhost4.localdomain4" is among those listed in
/etc/hosts for 127.0.0.1 we'd thus otherwise drop the "localhost" but
keep the "localhost4.localdomain4" and then on reverse lookups only
return that, which is highly confusing.
Make them rather fail than go to the network.
Previously we'd filter them on LLMNR (explicitly) and MDNS (implicitly,
because it doesn't have .local suffix), but not on DNS.
In order to make _gateway truly reliable, let's not allow it to go to
DNS either, and keep it local.
This is particular relevant, as clients can now request lookups without
local RR synthesis, where we'd rather have NXDOMAIN returned for
_gateway than have it hit the network.
Apparently 30s is a bit too long for some cases, see #5552. But not
caching SERVFAIL at all also breaks stuff, see explanation in
201d99584e.
Let's try to find some middle ground, by lowering the cache timeout to
10s. This should be ample for the problem
201d99584e attackes, but not as long as
half a miute, as #5552 complains.
Fixes: #5552
Fixes#17533
The memory pressure values of the units in TEST-56-OOMD seemed to be a
lot lower after updating to linux 5.9. This is likely due to a fix from
e22c6ed90a.
To account for this, I lowered memory.high on testbloat.service to
throttle it even more. This was enough to generate the 50%+ value to trigger
oomd for the test, but as an extra precaution I also lowered the oomd
threshold to 1% so it's certain to try and kill testbloat.service.
DNSSEC validation takes the system clock into account to validate
signatures. This means if we had incorrect time and the time is then
changed to the correct one we should flush out everything and
re-validate taking the new time into account.
(This logic will also trigger after system suspend, which is not bad
either, given that quite possibly we are connected to a different
network, and thus would get different DNS data, without us noticing
otherwise via link beat).
UML runs as a user-process so it can quite easily be ran inside of
another hypervisor, for instance inside a KVM instance. UML passes
through the CPUID from the host machine so in this case detect_vm
incorrectly identifies as running under KVM. So check we are running
a UML kernel first, before we check any other hypervisors.
Resolves: #17754
Signed-off-by: Christopher Obbard <chris.obbard@collabora.com>
Apparently, IF_UNICAST_IF does not influence the routing decisions done
during connect(). But SO_BINDTODEVICE/SO_BINDTOINDEX does, which however
brings a lot of other semantics with it, we are not so interested in
(i.e. it doesn't not allow packets from any other iface to us, even if
routing otherwise allows it).
Hence, let's bind to the ifindex immediately before the connect() and
unbind right after again, so that we get the semantics we want, but not
the ones we don't.
Fixes: #11935
Replaces: #12004
This makes commands like 'ninja -C build fuzz-journal-remote' or
'ninja -C build fuzzers' work, even if we have -Dfuzz-tests=false.
Two advantages: correctness of the meson declarations is verified even
if fuzzers are not built, and it easier to do a one-off build to check for
regressions or such.
Follow-up for 1763ef1d49.
This fixes the following race in reconfiguring link:
1. an interface requests UUID.
2. the interface is reconfigured and link_configure() is called.
3. sd-lldp client is started on the interface (it is enabled by default).
4. networkd acquires UUID, and get_product_uuid_handler() calls
link_configure() for the link again.
5. link_lldp_rx_configure() fails to set ifindex for already running
sd-lldp client.
6. the link enters failed state.
if the source and destination file match in contents and basic file
attributes, don#t rename, but just remove source.
This is a simple way to suppress inotify events + mtime changes when
atomically updating files.
Less 568 properly shows urlified strings.
Putative NEWS entry:
* Urlification is now enabled by default even when a pager is used.
Previously it was disabled, because less would not show such markup
properly. This has been fixed in less 568.
Please either upgrade less, or use SYSTEMD_URLIFY=0 to disable the
feature.
Let's a concept of "rate limiting" to event sources: if specific event
sources fire too often in some time interval temporarily take them
offline, and take them back online once the interval passed.
This is a simple scheme of avoiding starvation of event sources if some
event source fires too often.
This introduces the new conceptual states of "offline" and "online" for
event sources: an event source is "online" only when enabled *and* not
ratelimited, and offline in all other cases. An event source that is
online hence has its fds registered in the epoll, its signals in the
signalfd and so on.
So far we used these fields to organize the earliest/latest timer event
priority queue. In a follow-up commit we want to introduce ratelimiting
to event sources, at which point we want any kind of event source to be
able to trigger time wakeups, and hence they all need to be included in
the earliest/latest prioqs. Thus, in preparation let's make this
generic.
No change in behaviour, just some shifting around of struct members from
the type-specific to the generic part.
sd_event_prepare() invokes callbacks that might drop the last user ref
on our event loop. Let's make sure we keep an explicit ref around it, so
that we won't end up with an invalid pointer. Similar in sd_event_run().
Basically, any function that is publically callable that might end up
invoking callbacks should ref the relevant objects to be protected
against callbacks destroying these objects while we still want to access
them. We did this correctly in sd_event_dispatch() and sd_event_loop(),
but these are not the only ones which are callable from the outside.
