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* Test multiple `ndpiReader` configurations (#1931)Ivan Nardi2023-04-06
| | | | | | | | | Extend internal unit tests to handle multiple configurations. As some examples, add tests about: * disabling some protocols * disabling Ookla aggressiveness Every configurations data is stored in a dedicated directory under `tests\cfgs`
* ndpiReader: print how many packets (per flow) were needed to perform full ↵Ivan Nardi2023-03-01
| | | | | | DPI (#1891) Average values are already printed, but this change should ease to identify regressions/improvements.
* Add Meraki Cloud protocol and improve other protocols (#1854)Ivan Nardi2023-01-17
| | | | | Avoid some LineCall and Jabber false positives. Detect Discord mid flows. Fix Bittorrent detection.
* Fix classification "by-port" (#1851)Ivan Nardi2023-01-17
| | | | | | | | | | | Classification "by-port" should be the last possible effort, *after* having test all the LRU caches. Remove some dead code from `ndpi_detection_giveup()`: `flow->guessed_protocol_id` is never set to any od those voip protocols and at that point in this function we never have both a master *and* a application protocols. Coverage reports (both from unit tests and from fuzzing) confirms that was dead code.
* Remove some old protocols (#1832)Ivan Nardi2022-12-23
| | | | | | | | | | | | | | | | | | | | | These protocols: * have been addeded in the OpenDPI era * have never been updated since then * we don't have any pcap examples [*] If (and it is a big if...) some of these protocols are still somehow used and if someone is still interested in them, we can probably re-add them starting from scratch (because the current detection rules are probably outdated) Protocols removed: DIRECT_DOWNLOAD_LINK, APPLEJUICE, DIRECTCONNECT, OPENFT, FASTTRACK, SHOUTCAST, THUNDER, AYIYA, STEALTHNET, FIESTA, FLORENSIA, AIMINI, SOPCAST PPSTREAM dissector works (...) only on UDP. [*]: with do have an AIMINI test pcap but it was some trivial http traffic detected only by hostname matching, on domains no more available...
* Added TP-LINK Smart Home Protocol dissector. (#1841)Darryl Sokoloski2022-12-20
| | | | | Signed-off-by: Darryl Sokoloski <darryl@sokoloski.ca> Signed-off-by: Darryl Sokoloski <darryl@sokoloski.ca>
* STUN: add detection of ZOOM peer-to-peer flows (#1825)Ivan Nardi2022-12-11
| | | | See: "Enabling Passive Measurement of Zoom Performance in Production Networks" https://dl.acm.org/doi/pdf/10.1145/3517745.3561414
* Hangout: avoid useless lookups in the protocol tree (#1755)Ivan Nardi2022-10-25
| | | | | | | We already performed exactly these lookups in the generic code to populate `flow->guessed_protocol_id_by_ip`: use it! This code probably needs a deeper review, since it is basicaly a simple matching on ip + port.
* Add Elasticsearch protocol dissector. (#1782)Toni2022-10-21
| | | | | | | * all credits goes to @verzulli Signed-off-by: Toni Uhlig <matzeton@googlemail.com> Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Add Munin protocol dissector.Toni Uhlig2022-10-20
| | | | | | * all credits goes to @verzulli Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* 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
* Fix `ndpi_do_guess()` (#1731)Ivan Nardi2022-09-12
| | | | | Avoid a double call of `ndpi_guess_host_protocol_id()`. Some code paths work for ipv4/6 both Remove some never used code.
* 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 FastCGI protocol detection. (#1711)Toni2022-08-24
| | | | | | | | * CQL: fixed byte order conversion (BigEndian not LittleEndian) * CQL: increased required successful dissected packets to prevent false-positives Signed-off-by: Toni Uhlig <matzeton@googlemail.com> Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Add Kismet protocol detection. (#1710)Toni2022-08-24
| | | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com> Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* 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>
* 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).
* Add AVAST dissector. (#1674)Toni2022-07-25
| | | Signed-off-by: lns <matzeton@googlemail.com>
* Added AliCloud server access dissector. (#1672)Toni2022-07-23
| | | | Signed-off-by: lns <matzeton@googlemail.com> Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* SKYPE: remove detection over TCPNardi Ivan2022-07-20
| | | | | | Skype detection over TCP has been completely disable since 659f75138 (3 years ago!). Since that logic was too weak anyway, remove it.
* 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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* Added unidirectional traffic flow riskLuca Deri2022-06-20
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* 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.
* 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.
* Changed due to bin size extensionLuca Deri2020-07-30
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* Added ndpi_bin_XXX APILuca Deri2020-06-22
| | | | Added packet lenght distribution bins
* Remove decimals in test results for IAT, packet lengths and goodput ratioemanuele-f2020-02-14
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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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* Added -C to generate CSV analysis filesLuca2019-09-03
| | | | Improved IAT and byte distribution
* Average calculation fixLuca2019-08-29
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* Compilation fix on systems without JSON-CLuca Deri2019-08-29
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* Uodated resultsLuca2019-08-29
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* Added entropy, average, stddev, variance, bytes ratio calculationLuca2019-08-28
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* Refresh after data leak detectionLuca Deri2019-07-18
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* Added missing categorization when giveup/guess is calledLuca2018-08-30
| | | | | Added optimization for TCP flows that do not start with a SYN packet: early giveup is performed Code cleanup
* Updated results based on the new output formatLuca2018-07-21
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* Updated test resulsLuca Deri2018-05-18
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* Updated test resultsLuca Deri2018-05-14
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* Implemented flow sort based on total bytes so that we can (with -v X) ↵Luca2017-08-02
| | | | immediately spot elephants and mice
* update results after modificationsCampus2017-05-26
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* Updated results are ndpiReader output has been modifiedLuca Deri2017-05-17
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* update flow thanks to commit a9c01ded174ed380a2d135cfb9b903f616b0e175Campus2017-04-20
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* fix and merge mssql and tds in unique dissector mssql_tds due to latest ↵Campus2016-09-16
release + minor fixes
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