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* Updated ndpi_serialize_flow_fingerprint API signatureLuca2024-09-17
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* domain lists are not loaded when -E is usedLuca2024-09-17
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* Improved fingerprint serializationLuca2024-09-17
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* Added DHCP class idnetifierLuca2024-09-17
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* OpenVPN: heuristic: add a simple check to avoid false positives (#2560)Ivan Nardi2024-09-17
| | | We should have too big packets during the initial handshake
* fuzz: try to be a little bit faster (#2559)Ivan Nardi2024-09-17
| | | | | | | Some fuzzers don't really need a real and complete local context. Try to avoid setting it up, creating a simpler fake version with only the features really needed. That is a kind of experiment: if it works, we can extend the same logic to other fuzzers
* dns: add a check before setting `NDPI_MALFORMED_PACKET` risk (#2558)Ivan Nardi2024-09-16
| | | | | | "Invalid DNS Header"-risk should be set only if the flow has been already classified as DNS. Otherwise, almost any non-DNS flows on port 53 will end up having the `NDPI_MALFORMED_PACKET` risk set, which is a little bit confusing for non DNS traffic
* wireshark: extcap: rework trailer header (#2557)Ivan Nardi2024-09-16
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* Add an heuristic to detect encrypted/obfuscated OpenVPN flows (#2547)Ivan Nardi2024-09-16
| | | | | | | | | | | | Based on the paper: "OpenVPN is Open to VPN Fingerprinting" See: https://www.usenix.org/conference/usenixsecurity22/presentation/xue-diwen Basic idea: * the distribution of the first byte of the messages (i.e. the distribution of the op-codes) is quite unique * this fingerprint might be still detectable even if the OpenVPN packets are somehow fully encrypted/obfuscated The heuristic is disabled by default.
* TLS: fix stack-buffer-overflowNardi Ivan2024-09-16
| | | | | | | | | | | | | | | | | | | | | ``` SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior protocols/tls.c:1812:22 ================================================================= ==97754==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ba835bde8e5 at pc 0x557ebb644241 bp 0x7ffec04b0ea0 sp 0x7ffec04b0648 WRITE of size 7 at 0x7ba835bde8e5 thread T0 #0 0x557ebb644240 in vsnprintf (/home/ivan/svnrepos/nDPI/fuzz/fuzz_quic_get_crypto_data+0x6bf240) (BuildId: ce17f7c48055e1f051360bed543c1e18c05f684f) #1 0x557ebb645b1d in snprintf (/home/ivan/svnrepos/nDPI/fuzz/fuzz_quic_get_crypto_data+0x6c0b1d) (BuildId: ce17f7c48055e1f051360bed543c1e18c05f684f) #2 0x557ebb749dbc in ndpi_compute_ja4 /home/ivan/svnrepos/nDPI/src/lib/protocols/tls.c:1812:12 #3 0x557ebb7445a7 in processClientServerHello /home/ivan/svnrepos/nDPI/src/lib/protocols/tls.c:2946:10 #4 0x557ebb7073c9 in process_tls /home/ivan/svnrepos/nDPI/src/lib/protocols/quic.c:1397:3 #5 0x557ebb6ff815 in LLVMFuzzerTestOneInput /home/ivan/svnrepos/nDPI/fuzz/fuzz_quic_get_crypto_data.c:46:7 #6 0x557ebb602dcb in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) (/home/ivan/svnrepos/nDPI/fuzz/fuzz_quic_get_crypto_data+0x67ddcb) (BuildId: ce17f7c48055e1f051360bed543c1e18c05f684f) #7 0x557ebb5ecea8 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) (/home/ivan/svnrepos/nDPI/fuzz/fuzz_quic_get_crypto_data+0x667ea8) (BuildId: ce17f7c48055e1f051360bed543c1e18c05f684f) #8 0x557ebb5f299a in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) (/home/ivan/svnrepos/nDPI/fuzz/fuzz_quic_get_crypto_data+0x66d99a) (BuildId: ce17f7c48055e1f051360bed543c1e18c05f684f) #9 0x557ebb61c482 in main (/home/ivan/svnrepos/nDPI/fuzz/fuzz_quic_get_crypto_data+0x697482) (BuildId: ce17f7c48055e1f051360bed543c1e18c05f684f) #10 0x7fa837e27082 in __libc_start_main /build/glibc-LcI20x/glibc-2.31/csu/../csu/libc-start.c:308:16 #11 0x557ebb5e7b5d in _start (/home/ivan/svnrepos/nDPI/fuzz/fuzz_quic_get_crypto_data+0x662b5d) (BuildId: ce17f7c48055e1f051360bed543c1e18c05f684f) ```
* dhcp: fix out of bounds accesNardi Ivan2024-09-16
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* fuzz: fix compilationNardi Ivan2024-09-16
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* Reworked fingerprint export now in JSONLuca2024-09-16
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* Enhanced DHCP fingerprintLuca Deri2024-09-15
| | | | Exported it with -E
* Added -E option for dumping flow fingerprintLuca Deri2024-09-15
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* QUIC: add a basic heuristic to detect mid-flowsNardi Ivan2024-09-10
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* RTP: fix identification over TCPNardi Ivan2024-09-10
| | | | We can access `flow->l4.udp` structure only with UDP flows...
* RTMP: improve detection (#2549)Ivan Nardi2024-09-10
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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);
* Fix for name clash on some compilersLuca Deri2024-09-09
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* Added ability to save JA4_r as decimal valueLuca Deri2024-09-08
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* oracle: fix dissector (#2548)Ivan Nardi2024-09-07
| | | | We can do definitely better, but this change is a big improvements respect the current broken code
* Fix compilation (#2546)Ivan Nardi2024-09-05
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* Implemented JA4 raw (ja4_r) fingerprintLuca Deri2024-09-05
| | | | | Example: ./example/ndpiReader -i tests/pcap/safari.pcap --cfg=tls,metadata.ja4r_fingerprint,1
* Add detection of Windscribe VPNNardi Ivan2024-09-05
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* Add detection of CactusVPNNardi Ivan2024-09-05
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* Add detection of SurfShark VPNNardi Ivan2024-09-05
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* OpenVPN, Wireguard: improve sub-classificationNardi Ivan2024-09-05
| | | | | | | | Allow sub-classification of OpenVPN/Wireguard flows using their server IP. That is useful to detect the specific VPN application/app used. At the moment, the supported protocols are: Mullvad, NordVPN, ProtonVPN. This feature is configurable.
* Add detection of NordVPNNardi Ivan2024-09-05
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* OpenVPN: improve detectionNardi Ivan2024-09-05
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* 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
* Add Lustre protocol detection support (#2544)Vladimir Gavrilov2024-09-04
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* Align serialized risk names to all others (first letter; uppercase letter) ↵Toni2024-09-03
| | | | | (#2541) Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* TLS: better state about handshake (#2534)Ivan Nardi2024-09-03
| | | | Keep track if we received CH or/and SH messsages: usefull with unidirectional flows
* bins: fix `ndpi_set_bin`, `ndpi_inc_bin` and `ndpi_get_bin_value` (#2536)Ivan Nardi2024-09-03
| | | | When the required slot is too big, use the latest/bigger available bin, not in the first one.
* fuzz: improve fuzzing coverage (#2535)Ivan Nardi2024-09-03
| | | | Updtae pl7m code (fix a Use-of-uninitialized-value error and add GTP support)
* Bittorrent: improve detection of UTPv1 and avoid false positivesNardi Ivan2024-09-03
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* Bittorrent: fix extra dissectionNardi Ivan2024-09-03
| | | | | | | On extra-dissection data-path we only need to look for the hash (the flow is already classified as Bittorrent). As a nice side-effect, the confidence is now always with the right value.
* HTTP, QUIC, TLS: allow to disable sub-classification (#2533)Ivan Nardi2024-09-03
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* Update docAlfredo Cardigliano2024-09-02
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* Improved Yahoo matching for Japanese traffic (#2539)Liam Wilson2024-09-02
| | | | Japanese Yahoo domains are missed. Add yahoo.co.jp, yimg.jp, and the domain for ads seen when accessing yahoo.co.jp.
* Fix CNP-IP false positives (#2531)Vladimir Gavrilov2024-08-30
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* Print risk code in ndpi_dump_risks_scoreAlfredo Cardigliano2024-08-28
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* Add missing risks in ndpi_risk2code and ndpi_risk2codeAlfredo Cardigliano2024-08-28
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* Added print_ndpi_address_port in nDPi APILuca Deri2024-08-27
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* Added ndpi_risk2code and ndpi_code2riskLuca Deri2024-08-27
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* fuzz: fix compilation (#2532)Ivan Nardi2024-08-26
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* ndpi_get_protocol_by_name now return UNKNoWN when one protocol (either ↵Luca Deri2024-08-26
| | | | master or app) is not recognized
* CommentsLuca Deri2024-08-26
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