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* Added (optional) notifier for LRU addLuca Deri2020-08-31
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* Added new risk for NDPI_UNSAFE_PROTOCOL that identifies protocols that are ↵Luca Deri2020-08-30
| | | | not condidered safe/secure
* Fixed false positive in suspicous user agentLuca Deri2020-08-30
| | | | Optimized stddev calculation
* Passes method_len param to ndpi_http_str2methodSimone Mainardi2020-08-27
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* Added ndpi_http_method ndpi_http_str2method(const char* method) API callLuca Deri2020-08-26
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* Added ndpi_http_method2str() API callLuca Deri2020-08-26
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* Creared IoT-Scada categoryLuca Deri2020-08-23
| | | | Minor dnp3 changes
* Add (optional) dependency on external libraries: libgcrypt and libgpg-errorNardi Ivan2020-08-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To support QUIC payload and header decryption, it is necessary to choose an external crypto library to handle the low-level crypto stuff. Since we will use some Wireshark code, it is quite natural to choose the same library used by Wireshark itself: libgcrypt. More precisely, we will use libgcrypt and libgpg-error. Both libraries have LGPL license, so there should be no issue from this point of view. These libraries are not required to build nDPI, and their usage is optional: nDPI will keep working (and compiling) even if they are not available. However, without them, QUIC sub-classification is next to impossible. The configure flag "--disable-gcrypt" forces the build system to ignore these libraries. libgpg-error is only used for debug to have meaningful error messages and its usage is trivial. The same cannot be said for libgcrypt because its initialization is a significant issue. The rest of this commit message try explaining how libgcrypt is initialized. According to the documentation https://gnupg.org/documentation/manuals/gcrypt/Initializing-the-library.html https://gnupg.org/documentation/manuals/gcrypt/Multi_002dThreading.html#Multi_002dThreading libgcrypt must be initialized before using it, but such initialization should be performed by the actual application and not by any library. Forcing the users to proper initialize libgcrypt in their own code seems unreasonable: most people using nDPI might be complete unaware of any crypto stuff and update each and every one application linking to nDPI with specific libgcrypt code should be out of question, anyway. Fortunately, it seems a workaround exists to initialize libgcrypt in a library https://lists.gnupg.org/pipermail/gcrypt-devel/2003-August/000458.html Therefore, we could provide a wrapper to this initialization stuff in a nDPI function. Unfortunately nDPI API lacks a global init function that must be called only once, before any other functions. We could add it, but that would be a major API break. AFAIK, ndpi_init_detection_module() might be called multiple times, for example to create multiple independent dpi engines in the same program. The proposed solution is to (optionally) initialize libgcrypt in ndpi_init_detection_module() anyway: * if the actual application doesn't directly use libgcrypt and only calls ndpi_init_detection_module() once, everything is formally correct and it should work out of the box [by far the most common user case]; * if the actual application already uses libgcrypt directly, it already performs the required initialization. In this case the ndpi_prefs.ndpi_dont_init_libgcrypt flag should be passed to ndpi_init_detection_module() to avoid further initializations. The only scenario not supported by this solution is when the application is unaware of libgcrypt and calls ndpi_init_detection_module() multiple times concurrently. But this scenario should be uncommon. A completely different option should be to switch to another crypto library, with a huge impact on the QUIC dissector code. Bottom line: crypto is hard, using libgcrypt is complex and the proposed initialization, even if not perfect, should cover the most frequent user cases and should work, for the time being. If anyone has some suggestions...
* Major rework of QUIC dissectorNardi Ivan2020-08-21
| | | | | Improve support for GQUIC (up to Q046) and add support for Q050 and (IETF-)QUIC Still no sub-classification for Q050 and QUIC
* Added new check for detecting suspicious (too long) namesLuca Deri2020-08-21
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* Compilation fixLuca Deri2020-08-19
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* Merge pull request #985 from lnslbrty/add/SOAPLuca Deri2020-08-19
|\ | | | | Added support for SOAP.
| * Added support for SOAP.Toni Uhlig2020-08-18
| | | | | | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* | Merge pull request #977 from adek05/devLuca Deri2020-08-19
|\ \ | | | | | | Enable building on OpenBSD 6.7
| * | OpenBSD: Do not redefine __LITTLE_ENDIAN__Adrian Zgorzałek2020-08-09
| | | | | | | | | | | | Will silence omnipresent compiler warnings when building ntopng.
| * | OpenBSD: Introduce pkt_timeval to deal with (bpf_)_timevalAdrian Zgorzałek2020-08-09
| | | | | | | | | | | | | | | | | | Some BSD APIs called in example/ return `struct bpf_timeval`, where nDPI APIs expect `struct timeval`. These two structs, besides having a different name, share the exact same set of fields.
* | | Added support for discordLuca Deri2020-08-16
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* | Fix typo.aouinizied2020-08-10
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* | Added case-insensitive substring matchingLuca Deri2020-08-10
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* Merge pull request #973 from IvanNardi/esni3Luca Deri2020-08-06
|\ | | | | Add risk flag about suspicious ESNI usage
| * Add risk flag about suspicious ESNI usageNardi Ivan2020-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In a Client Hello, the presence of both SNI and ESNI may obfuscate the real domain of an HTTPS connection, fooling DPI engines and firewalls, similarly to Domain Fronting. Such technique is reported in a presentation at DEF CON 28: "Domain Fronting is Dead, Long Live Domain Fronting: Using TLS 1.3 to evade censors, bypass network defenses, and blend in with the noise" Full credit for the idea must go the original author At the moment, the only way to get the pdf presention and related video is via https://forum.defcon.org/node/234492 Hopefully a direct link (and an example pcap) will be available soon
* | Added note on memory managementLuca Deri2020-08-06
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* | Added new ndpi_string_sha1_hash API callLuca Deri2020-08-05
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* Win #define fixLuca Deri2020-08-05
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* Added new traffic category for connectivity check detectionLuca Deri2020-08-04
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* Tiny changes for TLS block lenght dissectionLuca Deri2020-07-29
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* TLS dissection improvementsLuca Deri2020-07-28
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* Added NDPI_SMB_INSECURE_VERSION for detecting insecure SMB versions (e.g. v1)Luca Deri2020-07-27
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* Added parentheses to avoid issues with macro expansionLuca Deri2020-07-25
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* Added changes for handlign SSSH cipher detectionLuca Deri2020-07-22
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* Introduced SSH rick checksLuca Deri2020-07-22
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* Added ndpi_reset_data_analysis() API callLuca Deri2020-07-17
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* Added ndpi_data_last() API callLuca Deri2020-07-16
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* Added ndpi_data_window_variance() and ndpi_data_window_stddev() API callsLuca Deri2020-07-15
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* Add ndpi_hll_reset() API callLuca Deri2020-07-15
| | | | Fixes bug in ndpi_data_window_average() with zero points
* Add note for sync with cffi bindings.aouinizied2020-07-13
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* Fixed race condition in ndpi_ssl_version2str() caused by static qualifier in ↵Toni Uhlig2020-07-11
| | | | | | | | | the version string buffer. * added also GREASE supported tls versions as specified in https://tools.ietf.org/html/draft-davidben-tls-grease-01#page-4 Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Various fixes in bins implementationLuca Deri2020-07-09
| | | | Added -b flag in ndpiReader to test bins
* Update note.aouinizied2020-07-09
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* Added -b to ndpiReader to evaluate binsLuca Deri2020-07-09
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* Added ndpi_cluster_bins() for clustering bins and ancillary functions for ↵Luca Deri2020-07-07
| | | | bins manipulation
* Merge pull request #932 from IvanNardi/logLuca Deri2020-07-07
|\ | | | | Log
| * Fix compilation with --enable-debug-messages flagNardi Ivan2020-06-26
| | | | | | | | | | | | | | | | | | | | | | | | NDPI_LOG* macros dereference ndpi_detection_module_struct object which is private to ndpi library (via NDPI_LIB_COMPILATION define). So we can't use them outside the library itself, i.e. in ndpiReader code Therefore, in files in example/, convert all (rare) uses of NDPI_LOG* macros to a new very simple macro, private to ndpiReader program. If necessary, such macro may be improved. According to a comment in ndpi_define.h, each dissector must define its own NDPI_CURRENT_PROTO macro before including ndpi_api.h file
* | Added ndpi_print_bin() API callLuca Deri2020-06-29
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* | Added ndpi_bin_similarity() for computing bin similarityLuca Deri2020-06-29
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* | Fix undefined behaviour in internal testsNardi Ivan2020-06-28
| | | | | | | | | | | | | | | | Error messages: ndpiReader.c:3211:2: runtime error: left shift of 1 by 31 places cannot be represented in type 'int' ndpiReader.c:3207:5: runtime error: left shift of 1 by 31 places cannot be represented in type 'int' The errors started popping up since 3d9285f1
* | Added notes whenever a new flow risk is addedLuca Deri2020-06-26
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* | Added malformed packet risk supportLuca Deri2020-06-26
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* | Values stored in patricia tree are now 32 bit (they used to be 16 bit) longLuca Deri2020-06-26
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* Added ndpi_bin_XXX APILuca Deri2020-06-22
| | | | Added packet lenght distribution bins
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