Commit graph

3723 commits

Author SHA1 Message Date
Arne Welzel
388cbcee48 Merge remote-tracking branch 'origin/topic/awelzel/4605-conn-id-context'
* origin/topic/awelzel/4605-conn-id-context:
  NEWS: Adapt for conn_id$ctx introduction
  conn_key/fivetuple: Drop support for non conn_id records
  Conn: Move conn_id init and flip to IPBasedConnKey
  IPBasedConnKey: Add GetTransportProto() helper
  input/Manager: Ignore empty record types
  external: Bump commit hashes for external suites
  ip/vlan_fivetuple: Populate nested conn_id_context, not conn_id
  ConnKey: Extend DoPopulateConnIdVal() with ctx
  btest: Update tests and baselines after adding ctx to conn_id
  init-bare: Add conn_id_ctx to conn_id
2025-07-03 18:42:48 +02:00
Arne Welzel
e221042f14 ip/vlan_fivetuple: Populate nested conn_id_context, not conn_id
This also enforces conn_id and conn_id_ctx types instead of being
able to handle any conn_id-like record.
2025-07-03 18:19:46 +02:00
Arne Welzel
25fc4d5d98 init-bare: Add conn_id_ctx to conn_id
This nested record can be used to discriminate orig_h or resp_h being
observed in different "contexts". A context can be based on VLAN tags,
but any custom ConnKey implementation should populate the ctx field,
allowing to write context-aware Zeek scripts without needing to know
what the context really is.
2025-07-03 18:19:46 +02:00
Jan Grashoefer
4831bf80d1 Add conn_generic_packet_threshold_crossed event 2025-07-03 12:09:47 +02:00
Evan Typanski
e7c798e526 Touchup TODOs in the Redis analyzer
Also renames `KnownCommand` to `RedisCommand` to avoid conflicts.
2025-07-01 14:14:15 -04:00
Evan Typanski
64443e5e5a Handle more Redis RESP3 protocol pieces
This passes the "minimum protocol version" along in the reply and adds
support for attributes, which were added relatively recently.
2025-07-01 14:14:15 -04:00
Evan Typanski
a4ce682bc9 Handle Redis protocol message separately
Closes #4504

Messages are not typical responses, so they need special handling. This
is different between RESP2 and 3, so this is the first instance where
the script layer needs to tell the difference.
2025-07-01 14:14:15 -04:00
Benjamin Bannier
b9eabbabba Bump pre-commit hooks 2025-07-01 10:39:47 +02:00
Arne Welzel
1d931b5a2f cluster/WebSocket: Include X-Application-Name in cluster.log
A bit ad-hoc formatting for the log, but that's mostly because cluster.log
only has message field and I don't think having a dedicated application_name
column is worth it. That could also be added by custom scripts if it's really
wanted for a given deployment.
2025-06-30 17:55:24 +02:00
Arne Welzel
26f5166d7a cluster/telemetry: Move topic_normalization redef to zeromq 2025-06-26 15:22:11 +02:00
Arne Welzel
22958f7cdf Merge remote-tracking branch 'origin/topic/awelzel/1474-cluster-telemetry'
* origin/topic/awelzel/1474-cluster-telemetry:
  btest/cluster/telemetry: Add smoke testing for telemetry
  cluster/WebSocket: Fetch X-Application-Name header as app label
  cluster/WebSocket: Pass X-Application-Name to dispatcher
  broker/WebSocketShim: Add calls to Telemetry hooks
  cluster/WebSocket: Configure telemetry for WebSocket backends
  broker: Hook up generic cluster telemetry
  cluster: Introduce telemetry component

One bug fix removing static from a variable that shouldn't be static.
2025-06-26 14:54:01 +02:00
bhaskarbhar
722381366b
Update init-bare.zeek 2025-06-25 22:51:43 +05:30
root
da89e7ee6e Renamed 2025-06-25 21:10:08 +05:30
Arne Welzel
4c34274a6c cluster: Introduce telemetry component 2025-06-25 16:59:49 +02:00
Christian Kreibich
29b0f844c0 Add a VLAN-aware flow tuple implementation.
This is a first "real" implementation of a custom tuple, adding additional
fields over the standard five-tuple.

Includes test cases.
2025-06-25 13:19:26 +02:00
Christian Kreibich
0c64f6a7b9 Establish plugin infrastructure for ConnKey factories.
ConnKey factories are intermediaries that encapsulate the details of how to
instantiate ConnKeys, which codify the hash input for connection lookups.
2025-06-25 13:18:07 +02:00
Arne Welzel
4b472f2771 Merge remote-tracking branch 'origin/topic/awelzel/telemetry-endpoint-to-node-rename'
* origin/topic/awelzel/telemetry-endpoint-to-node-rename:
  telemetry: Rename endpoint label to node label
2025-06-25 09:33:55 +02:00
Arne Welzel
eea194ddd8 telemetry: Rename endpoint label to node label
Using a label named "endpoint" is not intuitive and requires explaining to
users that it's really just the Cluster::node value. Change the label to
"node", so that we don't need to do the explaining.

This probably breaks some existing users of the Prometheus metrics, but after
looking more at metrics recently, "endpoint" really is a thorn in my eye.
2025-06-25 09:33:01 +02:00
bhaskarbhar
04d6fa3cb7 Add get_tags_by_category BIF method 2025-06-24 13:47:49 -07:00
Arne Welzel
fbeb3adfe6 Merge remote-tracking branch 'origin/topic/awelzel/dns-naming-authority-pointer'
* origin/topic/awelzel/dns-naming-authority-pointer:
  DNS: Implement NAPTR RR support
  DNS: Move extract_char_string() helper around
2025-06-24 17:44:17 +02:00
Arne Welzel
4f1fc296b6 DNS: Implement NAPTR RR support
My phone is sending NAPTR queries and we reported an unknown RR type 35
in weird.log for the response, so figured I'd just add it.
2025-06-24 17:43:27 +02:00
Arne Welzel
89c0b0faf3 cluster/zeromq: Hook up and enable IPV6 by default
ZeroMQ's IPv6 support isn't enabled by default, resulting in
"No such device" errors when attempting to listen on an IPv6
address. This change adds a ipv6 option to the ZeroMQ module
and enables it by default. Further, adds a test configuring
everything to listen on IPv6 ::1 as well, and one test to provoke
the original error. This also regularizes some error messages.

The addr_to_uri() calls weren't actually needed, but they apparently do
not hurt and the result is easier on the eyes, so use them :-)
2025-06-24 17:12:45 +02:00
Arne Welzel
cf43cf1809 cluster/zeromq/connect: Make failures fatal
The cluster is borked if the initialization fails, so may as well just
completely abort Zeek at that point with a fatal error. There's no real
point in continuing to run.
2025-06-20 13:03:47 +02:00
Arne Welzel
f5063bfcd4 Merge remote-tracking branch 'origin/topic/awelzel/4522-bdat-last-reply-fix'
* origin/topic/awelzel/4522-bdat-last-reply-fix:
  smtp: Fix last_reply column in smtp.log for BDAT LAST
2025-06-11 17:25:21 +02:00
Tim Wojtulewicz
ed51738668 Move netbios_ssn_session_timeout to a script-level constant 2025-06-10 11:58:20 -07:00
Arne Welzel
d650589ad4 smtp: Fix last_reply column in smtp.log for BDAT LAST
The response to BDAT LAST was never recognized, resulting in the
BDAT LAST commands not being logged in a timely fashion and receiving
the wrong status.

This likely doesn't handle complex pipeline scenarios, but it fixes
the wrong behavior for smtp_reply() not handling simple BDAT commands
responses.

Thanks @cccs-jsjm for the report!

Closes #4522
2025-06-06 10:40:49 +02:00
Christian Kreibich
1dcd13a019 Fix a typo. 2025-06-05 17:51:54 -07:00
Christian Kreibich
fc29aae183 Remove adjustments and custom terminate() for Zeekygen invocation. 2025-06-05 17:44:15 -07:00
Christian Kreibich
c1cec7aec7 Suppress warnings on deprecated DPD scripts during Zeekygen
Also fix corresponding baseline.
2025-06-05 17:44:10 -07:00
Tim Wojtulewicz
be71196fa7 Add busy_timeout script-level option, override any busy_timeout pragma 2025-06-05 10:21:50 -07:00
Johanna Amann
e6755325e1 Merge remote-tracking branch 'origin/topic/johanna/new-style-analyzer-log'
* origin/topic/johanna/new-style-analyzer-log:
  NEWS entries for analyzer log changes
  Move detect-protocol from frameworks/dpd to frameworks/analyzer
  Introduce new c$failed_analyzers field
  Settle on analyzer.log for the dpd.log replacement
  dpd->analyzer.log change - rename files
  Analyzer failure logging: tweaks and test fixes
  Introduce analyzer-failed.log, as a replacement for dpd.log
  Rename analyzer.log to analyzer.debug log; move to policy
  Move dpd.log to policy script
2025-06-05 07:22:35 +01:00
Johanna Amann
f02e817aea Move detect-protocol from frameworks/dpd to frameworks/analyzer
detect-protocol.zeek was the last non-deprecated script left in
policy/frameworks/dpd. It was moved to policy/frameworks/analyzer. A
script that loads the script from the new location with a deprecation
warning was added.
2025-06-04 12:16:09 +01:00
Johanna Amann
58613f0313 Introduce new c$failed_analyzers field
This field is used internally to trace which analyzers already had a
violation. This is mostly used to prevent duplicate logging.

In the past, c$service_violation was used for a similar purpose -
however it has slightly different semantics. Where c$failed_analyzers
tracks analyzers that were removed due to a violation,
c$service_violation tracks violations - and doesn't care if an analyzer
was actually removed due to it.
2025-06-04 12:07:13 +01:00
Tim Wojtulewicz
f2aca331ec Redis: Add support for sending AUTH commands during connection 2025-06-03 11:38:38 -07:00
Johanna Amann
42ba2fcca0 Settle on analyzer.log for the dpd.log replacement
This commit renames analyzer-failed.log to analyzer.log, and updates the
respective news entry.
2025-06-03 17:33:36 +01:00
Johanna Amann
130c89a0a7 dpd->analyzer.log change - rename files
To address review feedback in GH-4362: rename analyzer-failed-log.zeek
to loggig.zeek, analyzer-debug-log.zeek to debug-logging.zeek and
dpd-log.zeek to deprecated-dpd-log.zeek.

Includes respective test, NEWS, etc updates.
2025-06-03 16:32:52 +01:00
Johanna Amann
af77a7a83b Analyzer failure logging: tweaks and test fixes
The main part of this commit are changes in tests. A lot of the tests
that previously relied on analyzer.log or dpd.log now use the new
analyzer-failed.log.

I verified all the changes and, as far as I can tell, everything
behaves as it should. This includes the external test baselines.

This change also enables logging of file and packet analyzer to
analyzer_failed.log and fixes some small behavior issues.

The analyzer_failed event is no longer raised when the removal of an
analyzer is vetoed.

If an analyzer is no longer active when an analyzer violation is raised,
currently the analyzer_failed event is raised. This can, e.g., happen
when an analyzer error happens at the very end of the connection. This
makes the behavior more similar to what happened in the past, and also
intuitively seems to make sense.

A bug introduced in the failed service logging was fixed.
2025-06-03 15:56:42 +01:00
Johanna Amann
8c814fa88c Introduce analyzer-failed.log, as a replacement for dpd.log
Analyzer-failed.log is, essentially, the replacement for dpd.log. The
name should make more sense, as it does now log analyzer failures. For
protocol analyzers specifically, these are failures that lead to the
analyzer being disabled.
2025-06-03 15:17:26 +01:00
Johanna Amann
c55e21da71 Rename analyzer.log to analyzer.debug log; move to policy
The current analyzer.log is more useful for debugging than for
operational purposes. Hence this is disabled by default, moved to a
policy script, and the log is renamed to analyzer-debug.log.

Furthermore, logging of analyzer confirmations and disabling analyzers
are now enabled by default.
2025-06-03 15:17:26 +01:00
Johanna Amann
6183c5086b Move dpd.log to policy script
This is the first phase of moving from the current dpd log to a more
modern logfile, without some of the weirdnesses that the current dpd log
contains.

Tests will not pass in the current state; this is just splitting out
functionality.
2025-06-03 15:17:26 +01:00
Arne Welzel
0a34b39e7a Merge remote-tracking branch 'origin/topic/awelzel/4177-4178-custom-event-metadata-part-2'
* origin/topic/awelzel/4177-4178-custom-event-metadata-part-2:
  Event: Bail on add_missing_remote_network_timestamp without add_network_timestamp
  btest/plugin: Test custom metadata publish
  NEWS: Add note about generic event metadata
  cluster: Remove deprecated Event constructor
  cluster: Remove some explicit timestamp handling
  broker/Manager: Fetch and forward all metadata from events
  Event/init-bare: Add add_missing_remote_network_timestamp logic
  cluster/Backend/DoProcessEvent: Use generic metadata, not just timestamps
  cluster/Event: Support moving args and metadata from event
  cluster/serializer/broker: Support generic metadata
  cluster/Event: Generic metadata support
  Event: Use -1.0 for undefined/unset timestamps
  cluster: Use shorter obj_desc versions
  Desc: Add obj_desc() / obj_desc_short() overloads for IntrusivePtr
2025-06-02 17:33:22 +02:00
Arne Welzel
96f2d5d369 Event/init-bare: Add add_missing_remote_network_timestamp logic
Make defaulting to the local network timestamp for remote events opt-in.
2025-06-02 17:31:36 +02:00
Arne Welzel
0619fe2f4f intel/seen/manage-event-groups: Policy script for toggling intel event groups
Co-authored-by: Mohan Dhawan <mohan@corelight.com>
2025-06-02 09:51:14 +02:00
Arne Welzel
7eb849ddf4 intel: Add indicator_inserted and indicator_removed hooks
This change adds two new hooks to the Intel framework that can be used
to intercept added and removed indicators and their type.

These hooks are fairly low-level. One immediate use-case is to count the
number of indicators loaded per Intel::Type and enable and disable the
corresponding event groups of the intel/seen scripts.

I attempted to gauge the overhead and while it's definitely there, loading
a file with ~500k DOMAIN entries takes somewhere around ~0.5 seconds hooks
when populated via the min_data_store store mechanism. While that
doesn't sound great, it actually takes the manager on my system 2.5
seconds to serialize and Cluster::publish() the min_data_store alone
and its doing that serially for every active worker. Mostly to say that
the bigger overhead in that area on the manager doing redundant work
per worker.

Co-authored-by: Mohan Dhawan <mohan@corelight.com>
2025-06-02 09:50:48 +02:00
Arne Welzel
93813a5079 logging/ascii/json: Make TS_MILLIS signed, add TS_MILLIS_UNSIGNED
It seems TS_MILLIS is specifically for Elasticsearch and starting with
Elasticsearch 8.2 epoch_millis does (again?) support negative epoch_millis,
so make Zeek produce that by default.

If this breaks a given deployment, they can switch Zeek back to TS_MILLIS_UNSIGNED.

https://discuss.elastic.co/t/migration-from-es-6-8-to-7-17-issues-with-negative-date-epoch-timestamp/335259
https://github.com/elastic/elasticsearch/pull/80208

Thanks for @timo-mue for reporting!

Closes #4494
2025-05-30 17:23:29 +02:00
Arne Welzel
544d571089 cluster/websocket: Deprecate $listen_host, introduce $listen_addr
This only changes the script-layer API, but keeps the std::string host
in the C++ layer's ServerOptions. Mostly because the ixwebsocket library
takes host as std::string. Also, maybe at  some point we'd want to
support something scheme-based like unix:///var/run/zeek.sock and placing
that in a string could not be totally wrong.

Add tests for IPV6, too.
2025-05-30 11:02:41 +02:00
Evan Typanski
b4429a995a spicy-redis: Separate error replies from success 2025-05-27 09:31:25 -04:00
Evan Typanski
d5b121db14 spicy-redis: Cleanup scripts and tests
- Recomputes checksums for pcaps to keep clean
- Removes some tests that had big pcaps or weren't necessary
- Cleans up scripting names and minor points
- Comments out Spicy code that causes a build failure now with a TODO to
  uncomment it
2025-05-27 09:29:13 -04:00
Evan Typanski
11777bd6d5 spciy-redis: Bring Redis analyzer into Zeek proper 2025-05-27 09:28:12 -04:00
Evan Typanski
7f28ec8bc5 spicy-redis: Add dpd signature and clean pcaps 2025-05-27 09:28:12 -04:00