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* Improved Steam detection (Steam Datagram Relay - SDR).improved/dnscrypt_and_steamToni Uhlig2021-07-13
| | | | | | * improved DNSCrypt midstream detection again (sufficient for all tested use-cases) Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Improved dnscrypt midstream detection. (#1241)Toni2021-07-13
| | | | | * fixed skype false-positive detection of dnscrypt traffic Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* 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.
* Minor changeLuca Deri2021-07-12
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* ahoсorasick. Code review. Part 2. (#1236)Vitaly Lavrov2021-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplified the process of adding lines to AC_AUTOMATA_t. Use the ndpi_string_to_automa() function to add patterns with domain names. For other cases can use ndpi_add_string_value_to_automa(). ac_automata_feature(ac_automa, AC_FEATURE_LC) allows adding and compare data in a case insensitive manner. For mandatory pattern comparison from the end of the line, the "ac_pattern.rep.at_end=1" flag is used. This eliminated unnecessary conversions to lowercase and adding "$" for end-of-line matching in domain name patterns. ac_match_handler() has been renamed ac_domain_match_handler() and has been greatly simplified. ac_domain_match_handler() looks for the template with the highest domain level. For special cases it is possible to manually specify the domain level. Added test for checking ambiguous domain names like: - short.weixin.qq.com is QQ, not Wechat - instagram.faae1-1.fna.fbcdn.net is Instagram, not Facebook If you specify a NULL handler when creating the AC_AUTOMATA_t structure, then a pattern with the maximum length that satisfies the search conditions will be found (exact match, from the beginning of the string, from the end of the string, or a substring). Added debugging for ac_automata_search. To do this, you need to enable debugging globally using ac_automata_enable_debug(1) and enable debugging in the AC_AUTOMATA_t structure using ac_automata_name("name", AC_FEATURE_DEBUG). The search will display "name" and a list of matching patterns. Running "AHO_DEBUG=1 ndpiReader ..." will show the lines that were searched for templates and which templates were found. The ac_automata_dump() prototype has been changed. Now it outputs data to a file. If it is specified as NULL, then the output will be directed to stdout. If you need to get data as a string, then use open_memstream(). Added the ability to run individual tests via the do.sh script
* Fixed false positives in Z39.50Luca Deri2021-07-09
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* Updated category labelsLuca Deri2021-07-08
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* Fix for #1230 (#1235)Vitaly Lavrov2021-07-07
| | | | | | | | | | | | | | | * Revert "Fix return value of ndpi_match_string_subprotocol() (#1230)" This reverts commit 58665e93a98d014b53d131b2481ccab074efc9ff. * Checking the return code after calling ndpi_match_string_subprotocol() ndpi_api.h: Description of the returned error codes for the ndpi_match_string_subprotocol() function. If the ndpi_match_string_subprotocol() function returned an error, then return NDPI_PROTOCOL_UNKNOWN. http: The "Content-type" header is only checked if it is not empty.
* Improved RTSP detection the second. (#1232) (#1233)Toni2021-07-07
| | | | | | | * RTSP is no subprotocol of HTTP (most of the time) * detection patterns should stay in rtsp.c * set detected HTTP protocol only if at least a valid HTTP method detected Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Added test pcapLuca Deri2021-07-06
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* Improved RTSP via HTTP detection. (#1232)Toni2021-07-06
| | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Fix return value of ndpi_match_string_subprotocol() (#1230)Ivan Nardi2021-07-06
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* Updated prototypeLuca Deri2021-07-05
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* Minor fixLuca Deri2021-07-05
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* Code cleanupLuca Deri2021-07-05
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* Fix possible segfault/leakAlfredo Cardigliano2021-07-05
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* Added protocols to HTTP as subprotocols. (#1228)Toni2021-07-05
| | | | | | * if HTTP was detected, all of those defined subprotocol detection routines should called Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* TLS: fix a memory error in JA3 code (#1227)Ivan Nardi2021-07-05
| | | | protocols/tls.c:1856:5: runtime error: index 256 out of bounds for type 'char [256]' SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior protocols/tls.c:1856:5
* Improve content match lists (#1226)Ivan Nardi2021-07-05
| | | | | | Add support for Likee app (https://likee.video/) and GitLab Improve detection of Google domains ("gtv1.com" added in 6dd42d19f was likely a typo) Improve Snapchat and Tiktok detection
* Improved Z39.50 detection. (#1225)Toni2021-07-05
| | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Fixed off-by-one memory error for TLS-JA3. (#1222)Toni2021-06-29
| | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Removed ht_hash as it is not used anymore. (#1220)Toni2021-06-29
| | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Added Z39.50 protocol. (#1219)Toni2021-06-29
| | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* reconcile PPSTREAM protocol category with content_match declarations (#1218)vpiserchia2021-06-28
| | | | | | | * reconcile PPSTREAM protocol category with content_match declarations * remove duplicate declaration for PPSTREAM protocol Co-authored-by: vpiserchia <vito.piserchia@dreamlab.net>
* QUIC: add basic support for fragmented Client Hello (#1216)Ivan Nardi2021-06-24
| | | | Only in-order and non overlapping fragments are handled See #1195
* Added missing check to prevent crashesLuca Deri2021-06-23
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* ndpiReader: memory leak (#1215)Vitaly Lavrov2021-06-23
| | | | | | Non-critical bugs. If a file list is used, then all files except the last are not closed. Opening the next file loses the memory allocated via pcap_open_offline() for the previous file. If a bpf filter is used, then no memory is freed after pcap_compile.
* Speed and memory size optimisation (#1214)Vitaly Lavrov2021-06-23
| | | | | | | Removed bigram_automata, impossible_bigram_automata, trigram_automata. The ahocorasick structure is replaced with a bitmap. The bitmap size for ndpi_en_bigram is 176 bytes. The bitmap size for ndpi_en_trigram is 2201 bytes. On the test machine, the test execution time was reduced from 27.3 seconds to 24.7 (9%).
* Addesses partial application matching (#1207)Luca Deri2021-06-21
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* Restored 32 bit value in ndpi_match_string_value()Luca Deri2021-06-21
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* Upgraded exponential smoothing to 64 bit valuesLuca Deri2021-06-18
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* Added nDPI Score reportLuca Deri2021-06-17
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* fixed lua errors in non-iec104 packets (#1209)martinscheu2021-06-17
| | | | | | | | | * Update iec.lua fixed lua errors in non iec 104 packets * Update iec.lua Co-authored-by: tinu <martin.scheu@switch.ch>
* Added bitmap boundary checksLuca Deri2021-06-17
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* Extende nDPI API with ndpi_netbios_name_interpret()Luca Deri2021-06-17
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* NetBIOS decoding changesLuca Deri2021-06-16
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* Code review. (#1205)Vitaly Lavrov2021-06-15
| | | | | | | | | | | | | | | The common actions required to call the ac_automata_search() function have been moved to the ndpi_match_string_common function. This made it possible to simplify the ndpi_match_string, ndpi_match_string_protocol_id, ndpi_match_string_value, ndpi_match_custom_category, ndpi_match_string_subprotocol, ndpi_match_bigram, ndpi_match_trigram functions. Using u_int16_t type for protocol identifiers when working with the ahocorasick library (changes src/include/ndpi_api.h.in and src/include/ndpi_typedefs.h). Reworked "finalization" of all AC_AUTOMATA_t structures. Changing the order of fields in the ndpi_call_function_struct structure reduces the size of the ndpi_detection_module_struct structure by 10 kB (for x86_64).
* Win fixLuca Deri2021-06-15
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* IEC analysis wireshark pluginLuca Deri2021-06-14
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* Call ac_automata_release with free_pattern = 1 (malloc'ed patterns expected ↵Alfredo Cardigliano2021-06-14
| | | | in ndpi_add_string_to_automa)
* Fixes https://github.com/ntop/ntopng/issues/5482Luca Deri2021-06-11
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* Reimplememnted SNMP dissectorLuca Deri2021-06-11
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* Syntax error fixesLuca Deri2021-06-11
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* Fixed flow score labelLuca Deri2021-06-11
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* Changed output for the sharkfest lua scriptsMatteo Biscosi2021-06-11
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* Bug in ndpi_lru_find_cache (#1204)Vitaly Lavrov2021-06-10
| | | Key value check is missing.
* Minor code cleanupLuca2021-06-09
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* autoconf: Do not check for json-c if --with-only-libndpi is set. (#1202)Toni2021-06-09
| | | | | | * json-c is used by a unit test * required to fix some libnDPI cross compilation issues Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* OpenWRT document fixLuca Deri2021-06-08
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* Win changesLuca Deri2021-06-08
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