Victor Julien [Fri, 24 Jul 2020 08:49:20 +0000 (10:49 +0200)]
eve/ssh: change hassh logging format
Elastic search didn't accept the 'hassh' and 'hassh.string'. It would
see the first 'hassh' as a string and split the second key into a
object 'hassh' with a string member 'string'. So two different types
for 'hassh', so it rejected it.
This patch mimics the ja3(s) logging by creating a 'hassh' object
with 2 members: 'hash', which holds the md5 representation, and
'string' which holds the string representation.
Victor Julien [Mon, 20 Jul 2020 12:49:59 +0000 (14:49 +0200)]
nfs: fix 'dangling' files in lossy sessions
In case of lossy connections the NFS state would properly clean up
transactions, including file transactions. However for files the
state was never set to 'truncated', leading to files to stay 'active'.
This would lead these files staying in the NFS's state. In long running
sessions with lots of files this would lead to performance and memory
use issues.
This patch cleans truncates the file that was being transmitted when
a file transaction is being closed.
DCERPC parser so far provided support for single transactions only.
Extend that to support multiple transactions.
In order for multiple transactions to work, there is always a
transaction identifier for any protocol in its header that lets a
response match the request. In DCERPC, for TCP, that param is call_id in
the header which is a 32 bit field. For UDP, however since it uses
different version of RPC (4.x), this is defined by serial number field
defined in the header. This field however is not contiguous and needs to
be assembled by the provided serial_low and serial_hi fields.
Roland Fischer [Thu, 28 May 2020 05:58:00 +0000 (01:58 -0400)]
pcap: 32bit counters can wrap-around
Fixes issue 2845.
pcap_stats is based on 32bit counters and given a big enough throughput
will overflow them. This was reported by people using Myricom cards which
should only be a happenstance. The problem exists for all pcap-based
interfaces.
Let's use internal 64bit counters that drag along the pcap_stats and
handle pcap_stats wrap-around as we update the 64bit stats "often enough"
before the pcap_stats can wrap around twice.
Jason Ish [Mon, 6 Jul 2020 19:17:26 +0000 (13:17 -0600)]
rust: add doc target to build rust docs
Uses "cargo doc --no-deps" to build the documentation just for
our Suricata package. Without --no-deps, documentation will be
build for all our dependencies as well.
The generated documentation will end up in target/doc as HTML.
Victor Julien [Sun, 7 Jun 2020 11:42:09 +0000 (13:42 +0200)]
app-layer: add ApplyTxConfig API
Optional callback a parser can register for applying configuration
to the 'transaction'. Most parsers have a bidirectional tx. For those
parsers that have different types of transaction handling, this new
callback can be used to properly apply the config.
Victor Julien [Wed, 18 Mar 2020 13:08:37 +0000 (14:08 +0100)]
app-layer: define AppLayerTxData and AppLayerTxConfig
AppLayerTxData is a structure each tx should include that will contain
the common fields the engine needs for tracking logging, detection and
possibly other things.
AppLayerTxConfig will be used by the detection engine to configure
the transaction.
Victor Julien [Sun, 7 Jun 2020 20:22:05 +0000 (22:22 +0200)]
htp: alloc user data at tx start
This way the AppLayerTxData is set up from the start. Any type of
processing (logging, detection) will lead to setting up the user
data later on anyway.
Jason Ish [Fri, 10 Jul 2020 19:19:35 +0000 (13:19 -0600)]
script/dnp3-gen: update generator to reflect in tree changes
Some changes were made to the generated files instead of the
generator script. Update the script to generate what is
in the current state of the in-tree generated files.