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* 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).
* TINC: avoid processing SYN packets (#1676)Ivan Nardi2022-07-28
| | | | | | | | | | | Since e6b332aa, we have proper support for detecting client/server direction. So Tinc dissector is now able to properly initialize the cache entry only when needed and not anymore at the SYN time; initializing that entry for **every** SYN packets was a complete waste of resources. Since 4896dabb, the various `struct ndpi_call_function_struct` structures are not more separate objects and therefore comparing them using only their pointers is bogus: this bug was triggered by this change because `ndpi_str->callback_buffer_size_tcp_no_payload` is now 0.
* 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.
* 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>
* TLS: improve reassembler (#1669)Ivan Nardi2022-07-22
| | | | | | | | * TLS: cosmetic changes * TLS: improve reassembler We might need to contemporary re-order messages from both directions: use one buffer per direction.
* DTLS: fix exclusion of DTLS protocolNardi Ivan2022-07-20
| | | | Add an helper to exclude a generic protocol
* 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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* SMB: add (partial) support for messages split into multiple TCP segments (#1644)Ivan Nardi2022-07-07
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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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* Add two new confidence values: confidence by partial DPI (#1632)Ivan Nardi2022-07-04
| | | | Used for all classifications based on partial/incomplete DPI information, i.e. all classifications done in `ndpi_detection_giveup()`.
* Added unidirectional traffic flow riskLuca Deri2022-06-20
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* Updated DNS alert triggered only with TTL == 0Luca Deri2022-06-14
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* Improved DNS traffic analysisLuca Deri2022-06-13
| | | | Added ability to identify application and network protocols
* Fixed dispay bug for risk_infoLuca Deri2022-05-30
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* Updated tests resultsLuca Deri2022-05-30
| | | | Code cleanup
* Sync unit test results (#1554)Ivan Nardi2022-05-26
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* 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>
* SilencedLuca Deri2022-02-14
| | | | | | | | | NDPI_SUSPICIOUS_DGA_DOMAIN, NDPI_BINARY_APPLICATION_TRANSFER, NDPI_HTTP_NUMERIC_IP_HOST, NDPI_MALICIOUS_JA3, for predefined connectivity check and cybersec categories
* Updated test resultsLuca Deri2022-02-03
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* Sync unit tests results (#1423)Ivan Nardi2022-01-28
| | | Fix: 7a3aa41a
* STUN: fix "confidence" value for some classifications (#1407)Ivan Nardi2022-01-15
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* Improved MicrosoftAzure detectionLuca Deri2022-01-12
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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.
* Added Microsoft Azure supportLuca Deri2021-12-19
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* ndpiReader: slight simplificaton of the output (#1378)Ivan Nardi2021-11-27
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* Fix writes to `flow->protos` union fields (#1354)Ivan Nardi2021-11-15
| | | | | | | | | | | | | | | | | | | | | | | | | We can write to `flow->protos` only after a proper classification. This issue has been found in Kerberos, DHCP, HTTP, STUN, IMO, FTP, SMTP, IMAP and POP code. There are two kinds of fixes: * write to `flow->protos` only if a final protocol has been detected * move protocol state out of `flow->protos` The hard part is to find, for each protocol, the right tradeoff between memory usage and code complexity. Handle Kerberos like DNS: if we find a request, we set the protocol and an extra callback to further parsing the reply. For all the other protocols, move the state out of `flow->protos`. This is an issue only for the FTP/MAIL stuff. Add DHCP Class Identification value to the output of ndpiReader and to the Jason serialization. Extend code coverage of fuzz tests. Close #1343 Close #1342
* Fixed cleartext protocol assignment (#1357)Ivan Nardi2021-10-25
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* Refreshed results listLuca Deri2021-10-16
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* Updated test results after latest commitLuca 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.
* Updated category labelsLuca Deri2021-07-08
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* Addesses partial application matching (#1207)Luca Deri2021-06-21
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* Fixed expected outputLuca Deri2021-06-03
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* Improved TLS browser detection heuristicsLuca Deri2021-05-19
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* Added flow risk scoreLuca Deri2021-05-18
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* Reworked human readeable string search in flowsLuca Deri2021-05-17
| | | | Removed fragment manager code
* Added browser TLS heuristicLuca Deri2021-05-13
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* Better DGA detection (slightly decreased accuracy)Luca Deri2021-03-20
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* Improved DGA detectionLuca Deri2021-03-03
| | | | | | | | Before Accuracy 66%, Precision 86%, Recall 38% After Accuracy 71%, Precision 89%, Recall 49%
* Improved nDPI string matching algorithmLuca Deri2021-02-18
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* STUN improvementsLuca Deri2021-02-10
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* (Temporarely) Disabled fragment manager (#1129)Luca Deri2021-02-05
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* Updated results due to the new fragment manager handlerLuca Deri2021-02-03
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