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* Shrinked symbolic flow risks labelsLuca Deri2023-01-19
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* POP3: improve detection (#1856)Ivan Nardi2023-01-18
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* Improve support for Snapchat voip calls (#1858)Ivan Nardi2023-01-17
| | | | Latest Snapchat versions use QUICv1 for their audio/video real time sessions. See c50a8d480
* Add detection of Tailscale (#1857)Ivan Nardi2023-01-17
| | | Extend the example of wireguard traffic
* 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.
* Improved DGA detectionLuca Deri2023-01-12
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* Reduce the size of some traces used as unit test (#1845)Ivan Nardi2023-01-05
| | | | | | | | | | | | | | | | | | | No traces and no flows has been removed; only long sessions has been reduced, keeping only their first packets. This is quite important in fuzzing systems, since these pcaps are used as initial seed. There is no value in fuzzing long sessions, because only the very first packets are really used/processed by nDPI. Before: ``` du -h tests/pcap/ 200M tests/pcap/ ``` After: ``` du -h tests/pcap/ 98M tests/pcap/ ```
* Fix missing bracket at ppstream (#1843)Ege Çetin2023-01-03
| | | | | | | * add missing bracket * Sync unit test results Co-authored-by: Nardi Ivan <nardi.ivan@gmail.com>
* Added NDPI_MINOR_ISSUES risk used for storing generic/relevant information ↵Luca Deri2022-12-31
| | | | about issues found on traffic.
* Implemented EDNS(0) support in DNS dissectorLuca Deri2022-12-29
| | | | Improved DNS dissection
* 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...
* postgres: improve detection (#1831)Ivan Nardi2022-12-22
| | | Remove some dead code (found via coverage report)
* Fix infinite loop when a custom rule has port 65535 (#1833)Ivan Nardi2022-12-21
| | | Close #1829
* 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>
* Sync unit tests results (#1840)Ivan Nardi2022-12-19
| | | | Update the documentation, hinting how to test/update *all* the unit tests.
* Added TUYA LAN Protocol dissector. (#1838)Darryl Sokoloski2022-12-19
| | | | | | | | Tuya IoTOS Embedded Wi-Fi and BLE SDK for bk7231n. Used by many "smart" devices such as LED light strips, bulbs, etc. Signed-off-by: Darryl Sokoloski <darryl@sokoloski.ca> Signed-off-by: Darryl Sokoloski <darryl@sokoloski.ca>
* Add protocol disabling feature (#1808)Ivan Nardi2022-12-18
| | | | | | | | | | | | | | | | | | | | | | The application may enable only some protocols. Disabling a protocol means: *) don't register/use the protocol dissector code (if any) *) disable classification by-port for such a protocol *) disable string matchings for domains/certificates involving this protocol *) disable subprotocol registration (if any) This feature can be tested with `ndpiReader -B list_of_protocols_to_disable`. Custom protocols are always enabled. Technically speaking, this commit doesn't introduce any API/ABI incompatibility. However, calling `ndpi_set_protocol_detection_bitmask2()` is now mandatory, just after having called `ndpi_init_detection_module()`. Most of the diffs (and all the diffs in `/src/lib/protocols/`) are due to the removing of some function parameters. Fix the low level macro `NDPI_LOG`. This issue hasn't been detected sooner simply because almost all the code uses only the helpers `NDPI_LOG_*`
* 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
* fuzz: some enhancements (#1827)Ivan Nardi2022-12-10
| | | | | | | | | | Load some custom configuration (like in the unit tests) and factorize some (fuzzing) common code. There is no way to pass file paths to the fuzzers as parameters. The safe solution seems to be to load them from the process working dir. Anyway, missing file is not a blocking error. Remove some dead code (found looking at the coverage report)
* DTLS: handle (certificate) fragments (#1811)Ivan Nardi2022-12-10
| | | | | Keep using the existing function to handle reassembling buffer: rename it from `ndpi_search_tls_tcp_memory` to `ndpi_search_tls_memory` and make it "transport" agnostic
* Added Zoom screen share detectionLuca Deri2022-12-09
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* Added RTP stream type in flow metadataLuca Deri2022-12-09
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* Improved Zoom protocol detectionLuca Deri2022-12-08
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* Fix compilation (#1819)Ivan Nardi2022-12-05
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* Updated test resultsLuca Deri2022-12-05
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* Exported HTTP server in metadataLuca Deri2022-12-05
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* Add support for LTO and Gold linker (#1812)Ivan Nardi2022-12-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit add (optional) support for Link-Time-Optimization and Gold linker. This is the first, mandatory step needed to make nDPI compliant with "introspector" sanitizer requirements in OSS-Fuzz: see https://github.com/google/oss-fuzz/issues/8939 Gold linker is not supported by Windows and by macOS, so this feature is disabled by default. It has been enable in CI in two linux targets ("latest" gcc and clang). Fix some warnings triggered by LTO. The changes in `src/lib/ndpi_serializer.c` seams reasonable. However, the change in `tests/unit/unit.c` is due to the following warning, which seems to be a false positive. ``` unit.c: In function ‘serializerUnitTest’: ndpi_serializer.c:2258:13: error: ‘MEM[(struct ndpi_private_serializer *)&deserializer].buffer.size’ may be used uninitialized in this function [-Werror=maybe-uninitialized] unit.c:67:31: note: ‘MEM[(struct ndpi_private_serializer *)&deserializer].buffer.size’ was declared here 67 | ndpi_serializer serializer, deserializer; | ^ ndpi_serializer.c:2605:10: error: ‘MEM[(struct ndpi_private_serializer *)&deserializer].status.buffer.size_used’ may be used uninitialized in this function [-Werror=maybe-uninitialized] unit.c:67:31: note: ‘MEM[(struct ndpi_private_serializer *)&deserializer].status.buffer.size_used’ was declared here 67 | ndpi_serializer serializer, deserializer; ``` Since this warning is triggered only with an old version of gcc and `tests/unit/unit.c` is used only during the tests, the easiest fix has been applied. Some (unknown to me) combinations of OS and compiler trigger the following warnings at linker time (with sanitizer and gold linker) ``` /usr/bin/ld.gold: warning: Cannot export local symbol '__asan_report_load1_asm' /usr/bin/ld.gold: warning: Cannot export local symbol '__asan_report_load2_asm' /usr/bin/ld.gold: warning: Cannot export local symbol '__asan_report_load4_asm' /usr/bin/ld.gold: warning: Cannot export local symbol '__asan_report_load8_asm' /usr/bin/ld.gold: warning: Cannot export local symbol '__asan_report_load16_asm' /usr/bin/ld.gold: warning: Cannot export local symbol '__asan_report_store1_asm' /usr/bin/ld.gold: warning: Cannot export local symbol '__asan_report_store2_asm' /usr/bin/ld.gold: warning: Cannot export local symbol '__asan_report_store4_asm' [..] ``` I have not found any references to this kind of message, with the only exception of https://sourceware.org/bugzilla/show_bug.cgi?id=25975 which seems to suggest that these messages can be safely ignored. In any case, the compilation results are sound. Fix `clean` target in the Makefile in the `example` directory. In OSS-Fuzz enviroments, `fuzz_ndpi_reader` reports a strange link error (as always, when the gold linker is involved...). It's come out that the culprit was the `tempnam` function: the code has been changed to use `tmpfile` instead. No sure why... :( Fuzzing target `fuzz_ndpi_reader.c` doesn't use `libndpiReader.a` anymore: this way we can use `--with-only-libndpi` flag on Oss-Fuzz builds as workaround for the "missing dependencies errors" described in https://github.com/google/oss-fuzz/issues/8939
* CI: GitHub is updating Ubuntu runners (#1817)Ivan Nardi2022-12-03
| | | | | | | | | | | GitHub is moving `ubuntu-latest` to `ubuntu-22.04`: update our dependencies. See: https://github.blog/changelog/2022-11-09-github-actions-ubuntu-latest-workflows-will-use-ubuntu-22-04/ This is the reason of the recent random failures in CI. Update "newest" tested gcc to gcc-12. Fix a memory error introduced in 557bbcfc5a5165c9eb43bbdd78435796239cd3c9
* Make LRU caches ipv6 aware (#1810)Ivan Nardi2022-12-03
| | | | | | | | | | | | | Simplest solution, keeping the existing cache data structure TLS certificate cache is used for DTLS traffic, too. Note that Ookla cache already works with ipv6 flows. TODO: * make the key/hashing more robust (extending the key size?) * update bittorrent cache too. That task is quite difficult because ntopng uses a public function (`ndpi_guess_undetected_protocol()`) intrinsically ipv4 only...
* Updated tests resultsLuca Deri2022-12-03
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* Fix classification "by-port" of QUIC flows (#1785)Ivan Nardi2022-11-22
| | | | | | | | | nDPI is able to properly classify QUIC flows only if it elaborates the very first packets of the flow. The protocol list in `is_udp_guessable_protocol()` is basically a list of protocols which can be detected from *any* packets in the flow. Rename such function to `is_udp_not_guessable_protocol()`: the name is still quite cryptic, but at least not plainly wrong
* TLS: be sure to always set `ssl_version` field (#1806)Ivan Nardi2022-11-22
| | | Useful with asymmetric traffic with (D)TLS <= 1.2
* Improved Teamspeak3 License/Weblist detection. (#1802)Toni2022-11-15
| | | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com> Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Improve export/print of L4 protocol information (#1799)Ivan Nardi2022-11-13
| | | Close #1797
* 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.
* TLS: improve handling of ALPN(s) (#1784)Ivan Nardi2022-10-25
| | | | | | | | Tell "Advertised" ALPN list from "Negotiated" ALPN; the former is extracted from the CH, the latter from the SH. Add some entries to the known ALPN list. Fix printing of "TLS Supported Versions" field.
* Sync unit tests results (#1783)Ivan Nardi2022-10-22
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* Enhanced HTTP numeric IP checkLuca Deri2022-10-22
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* 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>
* TLS: allow sub-classification via ALPNNardi Ivan2022-10-20
| | | | | | | | In some rare cases, it is possible to sub-classify the flow via ALPN matching. This is particularly usefull for asymmetric traffic where the Client Hello doens't have the SNI. For the time being there is only one rule, about ANYDESK.
* Sync unit tests resultsNardi Ivan2022-10-19
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* Reworked severities adding critical and emergency, thus shifting values downLuca Deri2022-10-19
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* TLS: explicit ignore client certificate (#1776)Ivan Nardi2022-10-18
| | | | | | | | | | | | | TLS classification usually stops after processing *server* certificates (if any). That means, that *client* certificate, if present, is usually ignored. However in some corner cases (i.e. unidirectional traffic) we might end up processing client certificate and exposing its metadata: the issue is that the application will think that this metadata are about the server and not about the client. So, for the time being, always ignore client certificate processing. As a future work, we might find an efficient way to process and export both certificates.
* Add some popular streaming applicationsNardi Ivan2022-10-17
| | | | | | | A simply back-porting from https://github.com/vel21ripn/nDPI/pull/142; full credits to @ChrisNelson-CyberReef. Close #1716
* Updated protocol dissector serialisation code. (#1767)Toni2022-10-15
| | | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com> Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Sync utests results (#1774)Ivan Nardi2022-10-14
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* Added DNS error code mapping number -> stringLuca Deri2022-10-14
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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.
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