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* Added new API calls for serializing/restoring the DNS cacheLuca Deri2024-10-10
| | | | | - bool ndpi_address_cache_dump(struct ndpi_address_cache *cache, char *path, u_int32_t epoch_now); - u_int32_t ndpi_address_cache_restore(struct ndpi_address_cache *cache, char *path, u_int32_t epoch_now);
* Added STUN fingerprint codeLuca Deri2024-10-09
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* Added readmeLuca Deri2024-10-08
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* TTL Cache Fix (#2582)Luca Deri2024-10-08
| | | | | * Added missing free * Win fix
* Test unit fixLuca Deri2024-10-08
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* Removed unused variableLuca Deri2024-10-08
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* Offset fixLuca Deri2024-10-08
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* Added missing #defineLuca Deri2024-10-08
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* Implemented (disabled by default) DNS host cache. You can set the cache size ↵Luca Deri2024-10-07
| | | | | | | | | | as follows: ndpiReader --cfg=dpi.address_cache_size,1000 -i <pcap>.pcap In the above example the cache has up to 1000 entries. In jcase ndpiReader exports data in JSON, the cache hostname (if found) is exported in the field server_hostname
* Indent fixLuca Deri2024-10-07
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* Add DingTalk protocol support (#2581)Vladimir Gavrilov2024-10-07
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* Moved ndpi_lru in a separate fileLuca Deri2024-10-04
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* Exports DNS A/AAAA responses (up to 4 addresses)Luca2024-10-02
| | | | Changed the default to IPv4 (used to be IPv6) in case of DNS error response
* Enhanced DHCP fingerprintLuca Deri2024-10-01
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* TLS: detect abnormal padding usage (#2579)Ivan Nardi2024-10-01
| | | | Padding is usually some hundreds byte long. Longer padding might be used as obfuscation technique to force unusual CH fragmentation
* Fix builds on Windows (#2580)Ivan Nardi2024-10-01
| | | | | | | | | | | | | | | | | Quick fix with latest Windows image on GitHub CI, where we got: ``` ndpiReader.c:2860:38: error: '%s' directive output may be truncated writing up to 64 bytes into a region of size 63 [-Werror=format-truncation=] 2860 | snprintf(srcip, sizeof(srcip), "[%s]", flow->src_name); | ^~ ndpiReader.c:2860:5: note: 'snprintf' output between 3 and 67 bytes into a destination of size 64 2860 | snprintf(srcip, sizeof(srcip), "[%s]", flow->src_name); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ndpiReader.c:2861:38: error: '%s' directive output may be truncated writing up to 64 bytes into a region of size 63 [-Werror=format-truncation=] 2861 | snprintf(dstip, sizeof(dstip), "[%s]", flow->dst_name); | ^~ ndpiReader.c:2861:5: note: 'snprintf' output between 3 and 67 bytes into a destination of size 64 2861 | snprintf(dstip, sizeof(dstip), "[%s]", flow->dst_name); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ```
* Added pki.goog domain nameLuca Deri2024-09-30
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* wireshark: extcap: allow configuration of OpenVPN/TLS heuristics via GUI (#2576)Ivan Nardi2024-09-30
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* TLS: heuristics: fix memory allocations (#2577)Ivan Nardi2024-09-30
| | | | Allocate heuristics state only if really needed. Fix memory leak (it happened with WebSocket traffic on port 443)
* fuzz: try to be a little bit faster (#2578)Ivan Nardi2024-09-30
| | | See: 9d07cf281
* Added check for avoiding heap buffer overflowsLuca Deri2024-09-28
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* Let the library returning the packet direction calculated internally (#2572)Ivan Nardi2024-09-27
| | | wireshark, lua: add basic analysis of possible obfuscated flows
* CI: add tests on macos-15 (#2571)Ivan Nardi2024-09-27
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* Add enable/disable guessing using client IP/port (#2569)Liam Wilson2024-09-27
| | | | | | | | Add configurable options for whether to include client port or client IP in the flow's protocol guesses. This defaults to include both client port/IP if the protocol is not guessed with the server IP/port. This is intended for when flow direction detection is enabled, so we know that sport = client port, dport = server port.
* Improved telegram detectionLuca Deri2024-09-26
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* Slightly better ndpi_strrstr implementation (#2570)Vladimir Gavrilov2024-09-25
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* Changed too restrictive checkLuca Deri2024-09-25
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* Add some heuristics to detect encrypted/obfuscated/proxied TLS flows (#2553)Ivan Nardi2024-09-24
| | | | | | | | | | | | Based on the paper: "Fingerprinting Obfuscated Proxy Traffic with Encapsulated TLS Handshakes". See: https://www.usenix.org/conference/usenixsecurity24/presentation/xue-fingerprinting Basic idea: * the packets/bytes distribution of a TLS handshake is quite unique * this fingerprint is still detectable if the handshake is encrypted/proxied/obfuscated All heuristics are disabled by default.
* Fix Sonos traceNardi Ivan2024-09-24
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* buffer lenghtt is now returned by ndpi_quick_encrypt() and ndpi_quick_deecrypt()Luca Deri2024-09-24
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* Added new API callsLuca Deri2024-09-24
| | | | | u_int ndpi_hex2bin(u_char *out, u_int out_len, u_char* in, u_int in_len); u_int ndpi_bin2hex(u_char *out, u_int out_len, u_char* in, u_int in_len);
* Added Sonos protocol detectionLuca Deri2024-09-24
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* Added ndpi_quick_encrypt() ndpi_quick_decrypt() APi calls (#2568)Luca Deri2024-09-24
| | | | | * Added ndpi_quick_encrypt() ndpi_quick_decrypt(0 APi calls based on AES * Added aes.c
* TLS: improve handling of Change Cipher message (#2564)Ivan Nardi2024-09-23
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* Fix `ndpi_strrstr()` (#2565)Ivan Nardi2024-09-23
| | | | | | | | | | | | | ``` ==6591==ERROR: AddressSanitizer: SEGV on unknown address 0x502000230000 (pc 0x55fbd836a5a0 bp 0x7ffdf4503670 sp 0x7ffdf4502e28 T0) ==6591==The signal is caused by a READ memory access. #0 0x55fbd836a5a0 in __sanitizer::internal_strlen(char const*) /src/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_libc.cpp:176:10 #1 0x55fbd82cfc28 in StrstrCheck(void*, char*, char const*, char const*) /src/llvm-project/compiler-rt/lib/asan/../sanitizer_common/sanitizer_common_interceptors.inc:579:17 #2 0x55fbd82cfbc2 in strstr /src/llvm-project/compiler-rt/lib/asan/../sanitizer_common/sanitizer_common_interceptors.inc:598:5 #3 0x55fbd840a04a in ndpi_strrstr /src/ndpi/src/lib/ndpi_utils.c:3471:15 #4 0x55fbd840ba95 in ndpi_get_host_domain /src/ndpi/src/lib/ndpi_domains.c:149:9 #5 0x55fbd83ef751 in ndpi_check_dga_name /src/ndpi/src/lib/ndpi_main.c:10748:17 ``` Found by oss-fuzz
* wireshark: lua: add script for QUIC fingerprints [WIP] (#2566)Ivan Nardi2024-09-23
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* Replaced traces with debug messagesLuca Deri2024-09-20
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* Allow IP guess before port in ndpi_detection_giveup (#2562)Liam Wilson2024-09-20
| | | | Add dpi.guess_ip_before_port which when enabled uses classification by-ip before classification by-port.
* Implemented ndpi_strrstr()Luca Deri2024-09-19
| | | | Fixed bug in ndpi_get_host_domain
* Tls out of order (#2561)Ivan Nardi2024-09-18
| | | | | | | | | | | | * Revert "Added fix for handling Server Hello before CLient Hello" This reverts commit eb15b22e7757cb70894fdcde440e62bc40f22df1. * TLS: add some tests with unidirectional traffic * TLS: another attempt to process CH received after the SH Obviously, we will process unidirectional traffic longer, because we are now waiting for messages in both directions
* fuzz: fix compilationNardi Ivan2024-09-17
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* Added fix for handling Server Hello before CLient HelloLuca2024-09-17
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* Fixed handling of spurious TCP retransmissionsLuca2024-09-17
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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
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