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* LINE_CALL: add detection of LINE voip calls (#1761)Ivan Nardi2022-10-06
| | | | | | | | These flows are classifed as `LINE_CALL`; another option was `RTP/LINE_CALL`. No sure about the best solution... Extend LINE domains list. Remove RTP dead code.
* Sizes of LRU caches are now configurableNardi Ivan2022-09-23
| | | | | | | | 0 as size value disable the cache. The diffs in unit tests are due to the fact that some lookups are performed before the first insert: before this change these lookups weren't counted because the cache was not yet initialized, now they are.
* Remove classification "by-ip" from protocol stack (#1743)Ivan Nardi2022-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Basically: * "classification by-ip" (i.e. `flow->guessed_protocol_id_by_ip` is NEVER returned in the protocol stack (i.e. `flow->detected_protocol_stack[]`); * if the application is interested into such information, it can access `ndpi_protocol->protocol_by_ip` itself. There are mainly 4 points in the code that set the "classification by-ip" in the protocol stack: the generic `ndpi_set_detected_protocol()`/ `ndpi_detection_giveup()` functions and the HTTP/STUN dissectors. In the unit tests output, a print about `ndpi_protocol->protocol_by_ip` has been added for each flow: the huge diff of this commit is mainly due to that. Strictly speaking, this change is NOT an API/ABI breakage, but there are important differences in the classification results. For examples: * TLS flows without the initial handshake (or without a matching SNI/certificate) are simply classified as `TLS`; * similar for HTTP or QUIC flows; * DNS flows without a matching request domain are simply classified as `DNS`; we don't have `DNS/Google` anymore just because the server is 8.8.8.8 (that was an outrageous behaviour...); * flows previusoly classified only "by-ip" are now classified as `NDPI_PROTOCOL_UNKNOWN`. See #1425 for other examples of why adding the "classification by-ip" in the protocol stack is a bad idea. Please, note that IPV6 is not supported :( (long standing issue in nDPI) i.e. `ndpi_protocol->protocol_by_ip` wil be always `NDPI_PROTOCOL_UNKNOWN` for IPv6 flows. Define `NDPI_CONFIDENCE_MATCH_BY_IP` has been removed. Close #1687
* Add CryNetwork dissector.Toni Uhlig2022-09-16
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Add Syncthing dissector.Toni Uhlig2022-09-16
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Add NATPMP dissector. (#1738)Toni2022-09-16
| | | | | | | Signed-off-by: lns <matzeton@googlemail.com> Signed-off-by: Toni Uhlig <matzeton@googlemail.com> Signed-off-by: lns <matzeton@googlemail.com> Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* STUN: several improvementsNardi Ivan2022-09-11
| | | | | | | | | Add detection over TCP and fix detection over IPv6. Rename some variables since Stun dissector is no more "udp-centric". Stun dissector should always classified the flow as `STUN` or `STUN/Something`. Don't touch `flow->guessed_host_protocol_id` field, which should be always be related to "ip-classification" only.
* Add TiVoConnect dissector. Fixes #1697. (#1699)Toni2022-08-08
| | | | | * added static assert if supported, to complain if the flow struct changes Signed-off-by: lns <matzeton@googlemail.com>
* Add Discord dissector. (#1694)Toni2022-08-03
| | | | | * fixed RiotGames false positive Signed-off-by: lns <matzeton@googlemail.com>
* Add Activision dissector. (#1693)Toni2022-08-02
| | | Signed-off-by: lns <matzeton@googlemail.com>
* TLS: avoid useless extra dissection (#1690)Ivan Nardi2022-07-31
| | | | | | | If we have seen Application Data blocks in both directions, it means we are after the handshake. At that point, extra dissection is useless. Useful feature with TLS mid-sessions, i.e. sessions without initial packets.
* Add Softether dissector. (#1679)Toni2022-07-29
| | | Signed-off-by: lns <matzeton@googlemail.com>
* Patricia tree, Ahocarasick automa, LRU cache: add statistics (#1683)Ivan Nardi2022-07-29
| | | | | | | | | | Add (basic) internal stats to the main data structures used by the library; they might be usefull to check how effective these structures are. Add an option to `ndpiReader` to dump them; enabled by default in the unit tests. This new option enables/disables dumping of "num dissectors calls" values, too (see b4cb14ec).
* Update the protocol bitmask for some protocols (#1675)Ivan Nardi2022-07-27
| | | | | | | Tcp retransmissions should be ignored. Remove some unused protocol bitmasks. Update script to download Whatsapp IP list.
* DTLS: fix exclusion of DTLS protocolNardi Ivan2022-07-20
| | | | Add an helper to exclude a generic protocol
* Improved Jabber/XMPP detection. (#1661)Toni2022-07-13
| | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Keep track of how many dissectors calls we made for each flow (#1657)Ivan Nardi2022-07-11
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* Avoid spurious calls to extra dissection (#1648)Ivan Nardi2022-07-07
| | | | If the extra callabck is not set, calling the extra dissection is only a waste of resources...
* Fix handling of NDPI_UNIDIRECTIONAL_TRAFFIC risk (#1636)Ivan Nardi2022-07-05
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* Added unidirectional traffic flow riskLuca Deri2022-06-20
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* Updated tests resultsLuca Deri2022-05-30
| | | | Code cleanup
* Sync unit tests results (#1533)Ivan Nardi2022-04-27
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* Improved TLS application data detection. (#1532)Toni2022-04-27
| | | Signed-off-by: lns <matzeton@googlemail.com>
* Add a "confidence" field about the reliability of the classification. (#1395)Ivan Nardi2022-01-11
| | | | | | | | | | | | | As a general rule, the higher the confidence value, the higher the "reliability/precision" of the classification. In other words, this new field provides an hint about "how" the flow classification has been obtained. For example, the application may want to ignore classification "by-port" (they are not real DPI classifications, after all) or give a second glance at flows classified via LRU caches (because of false positives). Setting only one value for the confidence field is a bit tricky: more work is probably needed in the next future to tweak/fix/improve the logic.
* ndpiReader: slight simplificaton of the output (#1378)Ivan Nardi2021-11-27
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* Fixed cleartext protocol assignment (#1357)Ivan Nardi2021-10-25
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* Refreshed results listLuca Deri2021-10-16
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* Updated outputLuca Deri2021-08-07
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* ndpiReader: add statistics about nDPI performance (#1240)Ivan Nardi2021-07-13
| | | | | | | The goal is to have a (roughly) idea about how many packets nDPI needs to properly classify a flow. Log this information (and guessed flows number too) during unit tests, to keep track of improvements/regressions across commits.
* Added flow risk scoreLuca Deri2021-05-18
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* Added browser TLS heuristicLuca Deri2021-05-13
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* QUIC: improve handling of SNI (#1105)Ivan Nardi2021-01-07
| | | | | | | | | | | | | * QUIC: SNI should be always saved in flow->protos.stun_ssl.ssl.client_requested_server_name Close #1077 * QUIC: fix matching of custom categories * QUIC: add NDPI_TLS_MISSING_SNI support for older GQUIC versions * QUIC: fix serialization * QUIC: add DGA check for older GQUIC versions
* QUIC: extract User Agent informationNardi Ivan2020-09-08
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* Major rework of QUIC dissectorNardi Ivan2020-08-21
| | | | | Improve support for GQUIC (up to Q046) and add support for Q050 and (IETF-)QUIC Still no sub-classification for Q050 and QUIC
* Fixed partial TLS dissectionLuca Deri2020-07-30
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* Changed due to bin size extensionLuca Deri2020-07-30
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* Updated test results due to bin changesLuca Deri2020-07-09
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* Fixes #906Luca Deri2020-06-22
| | | | Packet bins are not printed wehn empty
* Added ndpi_bin_XXX APILuca Deri2020-06-22
| | | | Added packet lenght distribution bins
* Added NDPI_TLS_CERTIFICATE_EXPIRED, NDPI_TLS_CERTIFICATE_MISMATCH, to ndpi_riskLuca Deri2020-05-15
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* Added TLS issuerDN and subjectDNLuca Deri2020-05-07
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* Results updateLuca Deri2020-04-17
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* Remove decimals in test results for IAT, packet lengths and goodput ratioemanuele-f2020-02-14
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* Added export of TLS supported version in TLS headerLuca Deri2020-02-07
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* Added TLS ALPN supportLuca Deri2020-02-07
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* Reworked TLS dissectionLuca2020-01-01
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* Updated resultsLuca Deri2019-11-21
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* Manual merge of pull #769Luca Deri2019-10-02
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* Improves IAT calculationLuca2019-09-24
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* As TLS certificate fingerprint is computed, TLS without certificate protocol ↵Luca Deri2019-09-15
| | | | | | has been removed Various improvemenets in detection quality
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