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* Add an implementation of the BSD function `strtonum` (#2238)Ivan Nardi2024-01-04
| | | | | The main difference with the original function is that we allow to specify the base. Credit for the original idea and the first implementation to @0xA50C1A1
* Add IEC62056 (DLMS/COSEM) protocol dissector (#2229)Vladimir Gavrilov2024-01-02
| | | | | | | | | | | | | | | | | | | * Add IEC62056 (DLMS/COSEM) protocol dissector * Fix detection on big endian architectures * Update protocols.rst * Add ndpi_crc16_x25 to fuzz/fuzz_alg_crc32_md5.c * Update pcap sample * Remove empty .out file * iec62056: add some documentation --------- Co-authored-by: Nardi Ivan <nardi.ivan@gmail.com>
* fuzz: improve fuzzing coverage (#2239)Ivan Nardi2024-01-02
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* Implemented ndpi_is_outlier() for detecting outliers using z-scoreLuca2023-12-28
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* Implements ndpi_pearson_correlation for measuring how correlated are two seriesLuca Deri2023-12-27
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* New ndpi_sha256() nDPI API call (#2230)Luca Deri2023-12-23
| | | | | * Added ndpi_sha256.c to the Windows project * Added ndpi_sha256() nDPI API call
* fuzz: extend fuzzing coverage (#2208)Ivan Nardi2023-12-11
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* STUN: rework extra dissection (#2202)Ivan Nardi2023-12-11
| | | | | | | Keep looking for RTP packets but remove the monitoring concept. We will re-introduce a more general concept of "flow in monitoring state" later. The function was disabled by default. Some configuration knobs will be provided when/if #2190 is merged.
* Add some fast CRC16 algorithms implementation (#2195)Vladimir Gavrilov2023-12-05
| | | | | | | | | * Add some fast CRC16 algorithms implementation * Update ndpi_crc.c * Move crc16 stuff to ndpi_analyze.c * IEEE C37.118: use new fast CRC-16/CCITT-FALSE implementation
* Keep separating public and private API (#2157)Ivan Nardi2023-11-29
| | | See: b08c787fe
* Fixed implicit u32 cast in `ndpi_data_min()` / `ndpi_data_max()`. (#2139)Toni2023-11-09
| | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Rename some functions with more useful/clear names (#2127)Ivan Nardi2023-10-29
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* IPv6: add support for custom categories (#2126)Ivan Nardi2023-10-29
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* ipv6: add support for ipv6 addresses lists (#2113)Ivan Nardi2023-10-26
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* Added NDPI_MALWARE_HOST_CONTACTED flow riskLuca Deri2023-10-13
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* QUIC: export QUIC version as metadataNardi Ivan2023-10-11
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* Added printf/fprintf replacement for some internal modules. (#1974)Toni2023-09-26
| | | | | | * logging is instead redirected to `ndpi_debug_printf` Signed-off-by: lns <matzeton@googlemail.com> Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Fix some prototypes (#2085)Ivan Nardi2023-09-18
| | | | | ``` error: function declaration isn’t a prototype [-Werror=strict-prototypes] ```
* Add `ndpi_domain_classify_finalize()` function (#2084)Ivan Nardi2023-09-12
| | | | | | | | | The "domain classify" data structure is immutable, since it uses "bitmap64". Allow to finalize it before starting to process packets (i.e. before calling `ndpi_domain_classify_contains()`) to avoid, in the data-path, all the memory allocations due to compression. Calling `ndpi_domain_classify_finalize()` is optional.
* fuzz: add fuzzers to test bitmap64 and domain_classify data structures (#2082)Ivan Nardi2023-09-10
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* CleanupLuca2023-09-07
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* Improved classification further reducing memory usedLuca Deri2023-09-05
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* Added ndpi_bitmap64 supportLuca Deri2023-09-05
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* Added ndpi_murmur_hash to the nDPI APILuca Deri2023-09-04
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* Reworked domain classification based on binary filtersLuca Deri2023-09-02
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* Code cleanupLuca Deri2023-09-01
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* Added ndpi_binary_bitmap datastrutureLuca Deri2023-08-31
| | | | | It is similar to ndpi_filter but based on binary search and with the ability to store a category per value (as ndpi_domain_classify)
* Code cleanupLuca Deri2023-08-31
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* Added commentLuca Deri2023-08-31
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* Swap from Aho-Corasick to an experimental/home-grown algorithm that uses a ↵Luca Deri2023-08-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | probabilistic approach for handling Internet domain names. For switching back to Aho-Corasick it is necessary to edit ndpi-typedefs.h and uncomment the line // #define USE_LEGACY_AHO_CORASICK [1] With Aho-Corasick $ ./example/ndpiReader -G ./lists/ -i tests/pcap/ookla.pcap | grep Memory nDPI Memory statistics: nDPI Memory (once): 37.34 KB Flow Memory (per flow): 960 B Actual Memory: 33.09 MB Peak Memory: 33.09 MB [2] With the new algorithm $ ./example/ndpiReader -G ./lists/ -i tests/pcap/ookla.pcap | grep Memory nDPI Memory statistics: nDPI Memory (once): 37.31 KB Flow Memory (per flow): 960 B Actual Memory: 7.42 MB Peak Memory: 7.42 MB In essence from ~33 MB to ~7 MB This new algorithm will enable larger lists to be loaded (e.g. top 1M domans https://s3-us-west-1.amazonaws.com/umbrella-static/index.html) In ./lists there are file names that are named as <category>_<string>.list With -G ndpiReader can load all of them at startup
* Added ndpi_domain_classify_XXX(0 APILuca Deri2023-08-26
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* added bimap and/or with allocationLuca Deri2023-08-24
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* Minor improvementsLuca Deri2023-08-23
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* Added ndpi_bitmap_is_empty() and ndpi_bitmap_optimize() API callsLuca2023-08-23
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* Added ndpi_bitmap_andnot API callLuca2023-08-21
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* fuzz: extend coverage (#2073)Ivan Nardi2023-08-20
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* Reworked ndpi_filter_xxx implementation using compressed bitmapsLuca Deri2023-08-14
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* Added ndpi_filter_add_multi() API callLuca Deri2023-08-11
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* Added new API calls for implementing Bloom-filter like data structuresLuca Deri2023-08-11
| | | | | | | ndpi_filter* ndpi_filter_alloc(uint32_t elements_number); bool ndpi_filter_add(ndpi_filter *f, uint64_t value); bool ndpi_filter_contains(ndpi_filter *f, uint64_t value); void ndpi_filter_free(ndpi_filter *f);
* Added ndpi_bitmap_copy() API callLuca2023-08-06
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* Add an heuristic to detect fully encrypted flows (#2058)Ivan Nardi2023-07-26
| | | | | | | | A fully encrypted session is a flow where every bytes of the payload is encrypted in an attempt to “look like nothing”. The heuristic needs only the very first packet of the flow. See: https://www.usenix.org/system/files/sec23fall-prepub-234-wu-mingshi.pdf A basic, but generic, inplementation of the popcpunt alg has been added
* Allow init of app protocols w/o any hostnames set. (#2057)Toni2023-07-22
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* Fixes risk mask exception handling while improving the overall performanceLuca Deri2023-07-14
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* Implemented Count-Min Sketch [count how many times a value has been observed]Luca Deri2023-07-13
| | | | | | | - ndpi_cm_sketch_init() - ndpi_cm_sketch_add() - ndpi_cm_sketch_count() - ndpi_cm_sketch_destroy()
* STUN: keep monitoring/processing STUN flows (#2012)Ivan Nardi2023-06-21
| | | | Look for RTP packets in the STUN sessions. TODO: tell RTP from RTCP
* Added vlan_id in ndpi_flow2json() prototypeLuca Deri2023-06-09
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* Numeric truncation at `ndpi_analyze.c` at lines 101, 104, 107, 110 (#1999)headshog2023-05-30
| | | | | | | | | | | * fixed numeric truncation error in ndpi_analyze.c * fixed numeric truncation error in ndpi_analyze.c x2 * fixed numeric truncation error in ndpi_analyze.c x3 * fixed numeric truncation error in ndpi_analyze.c and printf format * fixed tests
* Changed logging callback function sig. (#2000)Toni2023-05-30
| | | | | * make user data available for any build config Signed-off-by: lns <matzeton@googlemail.com>
* fixed numeric truncation errorheadshog2023-05-20
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* Implemented ndpi_predict_linear() for predicting a timeseries value overtimeLuca Deri2023-05-19
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