This switches the DPD logic to always log analyzers that raised a
protocol confirmation.
The logic is that, once a protocol has been confirmed - and thus there
probably is log output - it does not make sense to later remove it from
the log. It does make sense to somehow flag it as failed - but that
seems like a secondary step.
* origin/topic/johanna/gh-4061:
Update BiF-tracking, add is_event_handled
Address review comments and small updates for DNS warnings
Raise warnings when for DNS events that are not raised due to dns_skip_all_addl
224.0.0.0/24 (and 6to4 conversion 2002:e000::/40) from RFC5771 "Multicast Local Network Control Block" defined as non-routable.
239.0.0.0/8 (and 6to4 conversion 2002:ef00::/24) from RFC2365 "Administratively Scoped IP Multicast"
fec0::/10 from RFC3879 "Deprecated Site Local Addresses"
(cherry picked from commit 821ab2dbed)
By default, dns_skip_all_addl is set to false. This causes several
events to not be raised. This change emits warnings when a user defines
event handlers for events that will not be raised.
Furthermore, it adds notes about this behavior to the documentation. We
also introduce a new BIF, `is_event_handled`, which checks if an event
is handled.
Fixes GH-4061
This fixes instances where `zeek:see` was used incorrectly so it was not
rendered correctly. All these instances have been found by looking for
`zeek:see` in the generated HTML where it should not be visible anymore.
I also removed a doc reference to `paraglob_add` which never existed.
This caused confusion and I don't think it's very intuitive. If called
with a name that does not exist, this returns without a value, not even
an error value. Changing that seems like it could be more deprecation
work.
The nodes-experimental/manager.zeek file ends up calling Broker::publish()
unconditionally, resulting in a warning. Skip running that code when
generating documentation.
* origin/topic/awelzel/move-broker-to-cluster-publish:
netcontrol: Move to Cluster::publish()
openflow: Move to Cluster::publish()
netcontrol/catch-and-release: Move to Cluster::publish()
config: Move to Cluster::publish()
ssl/validate-certs: Move to Cluster::publish()
irc: Move to Cluster::publish()
ftp: Move to Cluster::publish()
dhcp: Move to cluster publish
notice: Move to Cluster::publish()
intel: Move to Cluster::publish()
sumstats: Move to Cluster::publish()
* origin/topic/awelzel/fix-cluster-publish-any:
cluster/Backend: Handle unspecified table/set
cluster: Fix Cluster::publish() of Broker::Data
cluster: Be noisy when attempting to connect to an unknown node
Mostly due to spending too much time wondering why nodes didn't connect
when there was a mismatch between "manager" and "manager-1" in the
cluster layout. Remove manager from test-all-policy-cluster test to
avoid connection attempts in this test.
...at the same time, add some `TEST-REQUIRES: have-zeromq` which
unfortunately means that developers will usually want libzmq
installed on their system.
This is a cluster backend implementation using a central XPUB/XSUB proxy
that by default runs on the manager node. Logging is implemented leveraging
PUSH/PULL sockets between logger and other nodes, rather than going
through XPUB/XSUB.
The test-all-policy-cluster baseline changed: Previously, Broker::peer()
would be called from setup-connections.zeek, causing the IO loop to be
alive. With the ZeroMQ backend, the IO loop is only alive when
Cluster::init() is called, but that doesn't happen anymore.
* topic/christian/disconnect-slow-peers:
Bump cluster testsuite to pull in Broker backpressure tests
Expand documentation of Broker events.
Add sleep() BiF.
Add backpressure disconnect notification to cluster.log and via telemetry
Remove unneeded @loads from base/misc/version.zeek
Add Cluster::nodeid_to_node() helper function
Support re-peering with Broker peers that fall behind
Add Zeek-level configurability of Broker slow-peer disconnects
Bump Broker to pull in disconnect feature and infinite-loop fix
No need to namespace Cluster:: functions in their own namespace
Using network_time to calculate packet lag will produce wrong results
when there is no packet available but network time does not (yet) fall
back to wall clock.
This now picks up additional typical misspellings, but also triggers on
more identifiers we use. I opted for fixing the obvious misspellings and
updated the allowlist for anything else.
This adds a Broker-specific script to the cluster framework, loaded only when
Zeek is running in cluster mode. It adds logging in cluster.log as well as
telemetry via a metrics counter for Broker-observed backpressure disconnects.
The new zeek_broker_backpressure_disconnects counter, labeled by the neighboring
peer that the reporting node has determined to be unresponsive, counts the
number of unpeerings for this reason.
Here the node "worker" has observed node "proxy" falling behind once:
# HELP zeek_broker_backpressure_disconnects_total Number of Broker peering drops due to a neighbor falling too far behind in message I/O
# TYPE zeek_broker_backpressure_disconnects_total counter
zeek_broker_backpressure_disconnects_total{endpoint="worker",peer="proxy"} 1
Includes small btest baseline update to reflect @load of a new script.
This module is loaded by the telemetry framework, which we're now loading via
the cluster framework, i.e. also in bare mode. The resulting additional
thread (for creating reporter.log) trips up a number of btest baselines.
version.zeek doesn't use any of the string helper functions.
This adds re-peering at the Broker level for peers that Broker decided to
unpeer. We keep this at the Broker level since this behavior is specific to
it (as opposed to other cluster backends).
Includes baseline updates for btests that pick up on the new script's @load.
