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* Added -E option for dumping flow fingerprintLuca Deri2024-09-15
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* Implemented algorithms for K-Nearest Neighbor Search (KNN) (#2554)Luca Deri2024-09-10
| | | | | | | | | | | | | | | | * Extended API with functions for vector similarity based on KD-trees https://en.wikipedia.org/wiki/K-d_tree ndpi_kd_tree* ndpi_kd_create(u_int num_dimensions); void ndpi_kd_free(ndpi_kd_tree *tree); void ndpi_kd_clear(ndpi_kd_tree *tree); bool ndpi_kd_insert(ndpi_kd_tree *tree, const double *data_vector, void *user_data); ndpi_kd_tree_result *ndpi_kd_nearest(ndpi_kd_tree *tree, const double *data_vector); u_int32_t ndpi_kd_num_results(ndpi_kd_tree_result *res); bool ndpi_kd_result_end(ndpi_kd_tree_result *res); double* ndpi_kd_result_get_item(ndpi_kd_tree_result *res, double **user_data); bool ndpi_kd_result_next(ndpi_kd_tree_result *res); void ndpi_kd_result_free(ndpi_kd_tree_result *res); double ndpi_kd_distance(double *a1, double *b2, u_int num_dimensions);
* wireshark: extcap: export flow risk infoNardi Ivan2024-09-05
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* wireshark: extcap: fix output data link typeNardi Ivan2024-09-05
| | | | | | | Avoid forcing `DLT_EN10MB` but use the same data link type of the input pcap. This way, we can use extcap functionality with input traces having Linux "cooked" capture encapsulation, i.e. traces captured on "any" interface
* TLS: better state about handshake (#2534)Ivan Nardi2024-09-03
| | | | Keep track if we received CH or/and SH messsages: usefull with unidirectional flows
* Added print_ndpi_address_port in nDPi APILuca Deri2024-08-27
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* Endian-independent implementation of IEEE 802.3 CRC32 (#2529)Vladimir Gavrilov2024-08-25
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* Compilation fixesLuca Deri2024-08-24
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* Introduced ndpi_master_app_protocol typedefLuca Deri2024-08-24
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* Initialization fixLuca Deri2024-08-22
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* Fixed initializationLuca Deri2024-08-22
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* Update all IP lists (#2515)Ivan Nardi2024-08-02
| | | | | The `suffix_id` is simply an incremental index (see `ndpi_load_domain_suffixes`), so its value might changes every time we update the public suffix list.
* FPC: small improvements (#2512)Ivan Nardi2024-07-22
| | | | Add printing of fpc_dns statistics and add a general cconfiguration option. Rework the code to be more generic and ready to handle other logics.
* Performed some grammar and typo fixes (#2511)Petr2024-07-19
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* ipaddr2list.py, ndpi2timeline.py: reformatted (#2509)Petr2024-07-18
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* ndpi_strncasestr: optimization, fixes, tests (#2507)Petr2024-07-18
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* ndpi_memmem: optimized, fixed bug, added tests (#2499)Petr2024-07-15
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* Optimize performance of ndpi_strnstr() and possible bugfix (#2494)Petr2024-07-15
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* Add infrastructure for explicit support of Fist Packet Classification (#2488)Ivan Nardi2024-07-03
| | | | | Let's start with some basic helpers and with FPC based on flow addresses. See: #2322
* Modified separator from , (comma) to | (pipe) as some fields such as the ↵Luca Deri2024-07-01
| | | | HTTP user agent as sometimes they contain commas and create parsing problems
* wireshark: lua: export some metadataNardi Ivan2024-06-25
| | | | | | | | | | | | | | | Export some metadata (for the moment, SNI and TLS fingerprints) to Wireshark/tshark via extcap. Note that: * metadata are exported only once per flow * metadata are exported (all together) when nDPI stopped processing the flow Still room for a lot of improvements! In particular: * we need to add some boundary checks (if we are going to export other attributes) * we should try to have a variable length trailer
* wireshark: extcap: restore filtering mechanismNardi Ivan2024-06-25
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* Added default port mappings to ndpiReader help -H (#2477)Mark Jeffery2024-06-19
| | | Close #2125
* fuzz: improve fuzzing coverage (#2474)Ivan Nardi2024-06-17
| | | | | | Remove some code never triggered AFP: the removed check is included in the following one MQTT: fix flags extraction
* Zoom: remove "stun_zoom" LRU cacheNardi Ivan2024-06-17
| | | | | Since 070a0908b we are able to detect P2P calls directly from the packet content, without any correlation among flows
* Added NDPI_PROTOCOL_NTOP assert and removed percentage comparison (#2460)Mark Jeffery2024-06-10
| | | Close #2413
* More NDPI_PROBING_ATTEMPT changesLuca2024-05-22
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* Follow-up of 2093ac5bf (#2451)Ivan Nardi2024-05-21
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* Minor dissector optimizationsLuca Deri2024-05-20
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* Added dpi.compute_entropy configuration parameterLuca Deri2024-05-18
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* Revert `ndpi_strnstr()` optimization introduced in a813121e0 (#2439)Ivan Nardi2024-05-11
| | | | | New implementation fails tests 11b, 12 and 13. Revert to the original (BSD) implementation (with also some basic parameters check)
* `ndpi_strnstr()` optimization (#2433)Vladimir Gavrilov2024-05-10
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* Added optimized memmem/strlcpy version (#2424)Toni2024-05-08
| | | | | * credits goes to Vladimir Gavrilov Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Remove "zoom" cache (#2420)Ivan Nardi2024-05-06
| | | | | | | | | This cache was added in b6b4967aa, when there was no real Zoom support. With 63f349319, a proper identification of multimedia stream has been added, making this cache quite useless: any improvements on Zoom classification should be properly done in Zoom dissector. Tested for some months with a few 10Gbits links of residential traffic: the cache pretty much never returned a valid hit.
* Add strlcpy implementation (#2395)0x41CEA552024-04-19
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* Domain Classification Improvements (#2396)Luca Deri2024-04-18
| | | | | | | | | | | | | | | | | | | * Added size_t ndpi_compress_str(const char * in, size_t len, char * out, size_t bufsize); size_t ndpi_decompress_str(const char * in, size_t len, char * out, size_t bufsize); used to compress short strings such as domain names. This code is based on https://github.com/Ed-von-Schleck/shoco * Major code rewrite for ndpi_hash and ndpi_domain_classify * Improvements to make sure custom categories are loaded and enabled * Fixed string encoding * Extended SalesForce/Cloudflare domains list
* Fixed minor glitchesLuca Deri2024-04-15
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* STUN: add support for ipv6 in some metadata (#2389)Ivan Nardi2024-04-13
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* Implemented STUN peer_address, relayed_address, response_origin, ↵Luca Deri2024-04-12
| | | | | | | other_address parsing Added code to ignore invalid STUN realm Extended JSON output with STUN information
* STUN: improve extraction of Mapped-Address metadata (#2370)Ivan Nardi2024-04-08
| | | | | | | | | | | | | Enable parsing of Mapped-Address attribute for all STUN flows: that means that STUN classification might require more packets. Add a configuration knob to enable/disable this feature. Note that we can have (any) STUN metadata also for flows *not* classified as STUN (because of DTLS). Add support for ipv6. Restore the correct extra dissection logic for Telegram flows.
* Added support for STUN Mapped IP addressLuca Deri2024-04-03
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* Disable `-Wno-unused-parameter -Wno-unused-function`. (#2358)Toni2024-04-03
| | | | | * unused parameters and functions pollute the code and decrease readability Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Added support for roaring bitmap v3 (#2355)Luca Deri2024-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Integrated RoaringBitmap v3 * Renamed ndpi_bitmap64 ro ndpi_bitmap64_fuse * Fixes to ndpi_bitmap for new roaring library * Fixes for bitmap serialization * Fixed format * Warning fix * Conversion fix * Warning fix * Added check for roaring v3 support * Updated file name * Updated path * Uses clang-9 (instead of clang-7) for builds * Fixed fuzz_ds_bitmap64_fuse * Fixes nDPI printf handling * Disabled printf * Yet another printf fix * Cleaup * Fx for compiling on older platforms * Fixes for old compilers * Initialization changes * Added compiler check * Fixes for old compilers * Inline function is not static inline * Added missing include
* ahocorasick: improve matching with subdomains (#2331)Ivan Nardi2024-03-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The basic idea is to have the following logic: * pattern "DOMAIN" matches the domain itself (i.e exact match) *and* any subdomains (i.e. "ANYTHING.DOMAIN") * pattern "DOMAIN." matches *also* any strings for which is a prefix [please, note that this kind of match is handy but it is quite dangerous...] * pattern "-DOMAIN" matches *also* any strings for which is a postfix Examples: * pattern "wikipedia.it": * "wikipiedia.it" -> OK * "foo.wikipedia.it -> OK * "foowikipedia.it -> NO MATCH * "wikipedia.it.com -> NO MATCH * pattern "wikipedia.": * "wikipedia.it" -> OK * "foo.wikipedia.it -> OK * "foowikipedia.it -> NO MATCH * "wikipedia.it.com -> OK * pattern "-wikipedia.it": * "wikipedia.it" -> NO MATCH * "foo.wikipedia.it -> NO MATCH * "0001-wikipedia.it -> OK * "foo.0001-wikipedia.it -> OK Bottom line: * exact match * prefix with "." (always, implicit) * prefix with "-" (only if esplicitly set) * postfix with "." (only if esplicitly set) That means that the patterns cannot start with '.' anymore. Close #2330
* ndpiReader: restore `ndpiReader -x $DOMAIN_NAME` functionality (#2329)Ivan Nardi2024-02-26
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* Remove spurious call to `exit()`Nardi Ivan2024-02-12
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* Added stress testLuca Deri2024-02-11
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* reader_util: fix GRE detunneling (#2314)Ivan Nardi2024-02-10
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* Improve `ndpi_set_config` error printing. (#2300)Toni2024-02-02
| | | | | * exit `ndpiReader` if a invalid configuration setting detected Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Allow multiple `struct ndpi_detection_module_struct` to share some state (#2271)Ivan Nardi2024-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the concept of "global context". Right now every instance of `struct ndpi_detection_module_struct` (we will call it "local context" in this description) is completely independent from each other. This provide optimal performances in multithreaded environment, where we pin each local context to a thread, and each thread to a specific CPU core: we don't have any data shared across the cores. Each local context has, internally, also some information correlating **different** flows; something like: ``` if flow1 (PeerA <-> Peer B) is PROTOCOL_X; then flow2 (PeerC <-> PeerD) will be PROTOCOL_Y ``` To get optimal classification results, both flow1 and flow2 must be processed by the same local context. This is not an issue at all in the far most common scenario where there is only one local context, but it might be impractical in some more complex scenarios. Create the concept of "global context": multiple local contexts can use the same global context and share some data (structures) using it. This way the data correlating multiple flows can be read/write from different local contexts. This is an optional feature, disabled by default. Obviously data structures shared in a global context must be thread safe. This PR updates the code of the LRU implementation to be, optionally, thread safe. Right now, only the LRU caches can be shared; the other main structures (trees and automas) are basically read-only: there is little sense in sharing them. Furthermore, these structures don't have any information correlating multiple flows. Every LRU cache can be shared, independently from the others, via `ndpi_set_config(ndpi_struct, NULL, "lru.$CACHE_NAME.scope", "1")`. It's up to the user to find the right trade-off between performances (i.e. without shared data) and classification results (i.e. with some shared data among the local contexts), depending on the specific traffic patterns and on the algorithms used to balance the flows across the threads/cores/local contexts. Add some basic examples of library initialization in `doc/library_initialization.md`. This code needs libpthread as external dependency. It shouldn't be a big issue; however a configure flag has been added to disable global context support. A new CI job has been added to test it. TODO: we should need to find a proper way to add some tests on multithreaded enviroment... not an easy task... *** API changes *** If you are not interested in this feature, simply add a NULL parameter to any `ndpi_init_detection_module()` calls.
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