Commit graph

28 commits

Author SHA1 Message Date
Luca Deri
14b076a58b Improved TCP fingerprint 2024-10-20 22:25:55 +02:00
Luca Deri
0cc84e4fdd Improved TCP fingepring calculation
Adde basidc OS detection based on TCP fingerprint
2024-10-18 23:47:34 +02:00
Luca Deri
0ef0752c80
Increased struct ndpi_flow_struct size (#2596)
Build fix
2024-10-18 07:17:03 +02:00
Ivan Nardi
2d7085a23e
STUN: if the same metadata is found multiple times, keep the first value (#2591) 2024-10-15 15:12:37 +02:00
Ivan Nardi
456bc2a52c
Tls out of order (#2561)
* Revert "Added fix for handling Server Hello before CLient Hello"

This reverts commit eb15b22e77.

* TLS: add some tests with unidirectional traffic

* TLS: another attempt to process CH received after the SH

Obviously, we will process unidirectional traffic longer, because we are
now waiting for messages in both directions
2024-09-18 21:04:03 +02:00
Luca
eb15b22e77 Added fix for handling Server Hello before CLient Hello 2024-09-17 19:04:01 +02:00
Nardi Ivan
91531ed040 Bittorrent: fix extra dissection
On extra-dissection data-path we only need to look for the hash (the
flow is already classified as Bittorrent).
As a nice side-effect, the confidence is now always with the right
value.
2024-09-03 12:39:07 +02:00
Vladimir Gavrilov
64a5dc3cb3
Add TRDP protocol support (#2528)
The Train Real Time Data Protocol (TRDP) is a UDP/TCP-based communication protocol designed for IP networks in trains, enabling data exchange between devices such as door controls and air conditioning systems. It is standardized by the IEC under IEC 61375-2-3 and is not related to the Remote Desktop Protocol (RDP).
2024-08-25 13:31:39 +02:00
Vladimir Gavrilov
a10c48c80a
Add CNP/IP protocol support (#2521)
ISO/IEC 14908-4 defines how to tunnel Control Network Protocol (CNP) over IP networks. It encapsulates protocols like EIA-709, EIA-600, and CNP, making it a versatile solution for building automation and control systems.
2024-08-22 15:26:32 +02:00
Luca Deri
fc4fb4d409 Fixed probing attempt risk that was creating false positives 2024-08-07 11:38:41 +02:00
Ivan Nardi
85501c9aaa
FPC: add DPI information (#2514)
If the flow is classified (via DPI) after the first packet, we should
use this information as FPC
2024-07-23 08:50:27 +02:00
Ivan Nardi
65e31b0ea3
FPC: small improvements (#2512)
Add printing of fpc_dns statistics and add a general cconfiguration option.
Rework the code to be more generic and ready to handle other logics.
2024-07-22 17:42:23 +02:00
Ivan Nardi
456f0fd427
Improve detection of Cloudflare WARP traffic (#2491)
See: #2484
2024-07-04 08:59:04 +02:00
Ivan Nardi
843e487270
Add infrastructure for explicit support of Fist Packet Classification (#2488)
Let's start with some basic helpers and with FPC based on flow addresses.

See: #2322
2024-07-03 18:02:07 +02:00
Toni
8fd649ab1e
Add Ripe Atlas probe protocol. (#2473)
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
2024-06-17 11:00:38 +02:00
Nardi Ivan
526cf6f291 Zoom: remove "stun_zoom" LRU cache
Since 070a0908b we are able to detect P2P calls directly from the packet
content, without any correlation among flows
2024-06-17 10:19:55 +02:00
Ivan Nardi
b90d39c4ac
RTP/STUN: look for STUN packets after RTP/RTCP classification (#2465)
After a flow has been classified as RTP or RTCP, nDPI might analyse more
packets to look for STUN/DTLS packets, i.e. to try to tell if this flow
is a "pure" RTP/RTCP flow or if the RTP/RTCP packets are multiplexed with
STUN/DTLS.
Useful for proper (sub)classification when the beginning of the flows
are not captured or if there are lost packets in the the captured traffic.

Disabled by default
2024-06-07 13:12:04 +02:00
Ivan Nardi
b6beeef623
TLS: add support for DTLS (over STUN) over TCP (#2463)
TODO: TCP reassembler on top of UDP reassembler

See: #2414
2024-06-05 13:49:34 +02:00
Ivan Nardi
81e42b748e
RTP: fix detection over TCP (#2462)
RFC4571 is not the only way to wrap RTP messages in TCP streams.
For example, when RTP is encapsulated over TURN flows (i.e. via DATA
attribute) there is no additional framing.
See also 6127e0490
2024-05-29 18:31:10 +02:00
Ivan Nardi
fd02baa13a
DTLS: fix JA4 fingerprint (#2446) 2024-05-21 18:13:25 +02:00
Ivan Nardi
95fe21015d
Remove "zoom" cache (#2420)
This cache was added in b6b4967aa, when there was no real Zoom support.
With 63f349319, a proper identification of multimedia stream has been
added, making this cache quite useless: any improvements on Zoom
classification should be properly done in Zoom dissector.

Tested for some months with a few 10Gbits links of residential traffic: the
cache pretty much never returned a valid hit.
2024-05-06 12:51:45 +02:00
Ivan Nardi
06f4814085
STUN: try to stop extra dissection earlier, if possible (#2390) 2024-04-13 14:45:17 +02:00
Ivan Nardi
0535e54484
STUN: fix boundary checks on attribute list parsing (#2387)
Restore all unit tests.
Add some configuration knobs.
Fix the endianess.
2024-04-12 22:55:51 +02:00
Luca Deri
b83eb7c7a2 Implemented STUN peer_address, relayed_address, response_origin, other_address parsing
Added code to ignore invalid STUN realm
Extended JSON output with STUN information
2024-04-12 19:50:04 +02:00
Ivan Nardi
1b3ef7d7b2
STUN: improve extraction of Mapped-Address metadata (#2370)
Enable parsing of Mapped-Address attribute for all STUN flows: that
means that STUN classification might require more packets.

Add a configuration knob to enable/disable this feature.

Note that we can have (any) STUN metadata also for flows *not*
classified as STUN (because of DTLS).

Add support for ipv6.

Restore the correct extra dissection logic for Telegram flows.
2024-04-08 10:24:51 +02:00
Ivan Nardi
c0d3f8a92e
STUN: rework sub-classification (#2361)
The main goal is to have the "real" application (if any; i.e.
Signal/Whatsapp/Telegram/...) always as "application" protocol and not
as "master" one
2024-04-04 18:16:40 +02:00
Ivan Nardi
97fae6e00a
STUN: fix parsing of DATA attribute (#2345) 2024-03-14 14:20:51 +01:00
Ivan Nardi
6152d595e8
STUN: add a parameter to configure how long the extra dissection lasts (#2336)
Tradeoff: performance (i.e. number of packets) vs sub-classification
2024-03-07 14:39:32 +01:00