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* Fixed integer overflow for tcp timeout (>INT_MAX).lns2023-05-26
| | | | Signed-off-by: lns <matzeton@googlemail.com>
* Moved `datalink` json key/value from error to packet events and renamed it ↵Toni Uhlig2023-04-21
| | | | | | to `pkt_datalink`. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* nDPid: Fixed base64encode bug which lead to invalid base64 strings.Toni Uhlig2023-01-09
| | | | | | | | * py-semantic-validation: Decode base64 raw packet data as well * nDPIsrvd.py: Added PACKETS_PLEN_MAX * nDPIsrvd.py: Improved JSON parse error/exception handling Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Limit the size of base64 serialized raw packet data (8192 bytes per packet).Toni Uhlig2022-12-06
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* nDPId-test: Reworked I/O handling to prevent some endless loop scenarios. ↵Toni Uhlig2022-12-02
| | | | | | | | Fixed a race condition in the memory wrapper as well. * nDPId: Instead of sending too long JSON strings, log an error and some parts. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Unified nDPId/nDPIsrvd command line argument storage.Toni Uhlig2022-11-21
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Improved the point of time when to append the raw packet base64 data to the ↵Toni Uhlig2022-11-15
| | | | | | | | | serializer. * nDPId-test: Increased the max-packets-per-flow-to-send from 3 to 5. This is quite useful for TCP as the first 3 packets are usually part of the three-way-handshake. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* nDPIsrvd: Provide workaround for change user/group.Toni Uhlig2022-11-13
| | | | | | | | * nDPId/nDPIsrvd/c-examples: Parameter parsing needs to be improved if `strdup()` in combination with static strings is used. * Other non-critical fixes. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* nDPId: Fixed base64 encoding issue.Toni Uhlig2022-11-13
| | | | | | | | | | | | * The issue can result in an error message like: `Base64 encoding failed with: Buffer too small.` and also in too big JSON strings generated by nDPId which nDPIsrvd does not like as it's length is greater than `NETWORK_BUFFER_MAX_SIZE`. * nDPId will now obey `NETWORK_BUFFER_MAX_SIZE` while trying to base64 encode raw packet data. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Experimental systemd support.Toni Uhlig2022-11-06
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* nDPId: Added error event threshold to prevent event spamming which may be ↵Toni Uhlig2022-10-17
| | | | | | abused. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Improved py-machine-learning example.Toni Uhlig2022-10-09
| | | | | | | | | * c-analysed: fixed quoting bug * nDPId: fixed invalid iat storing/serialisation * nDPId: free data analysis after event was sent Signed-off-by: Toni Uhlig <matzeton@googlemail.com> Signed-off-by: lns <matzeton@googlemail.com>
* Added nDPIsrvd-analysed to generate CSV files from analyse events.Toni Uhlig2022-09-30
| | | | | | | * nDPIsrvd.h: iterate over JSON arrays * nDPId: calculate l3 payload packet entropies for analysis Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Refactored client distributor C API.Toni Uhlig2022-09-25
| | | | | | | | | | | * Still not perfect, but the code before was not even able to deal with JSON arrays. Use common "speaking" function names for all functions in nDPIsrvd.h * Provide a more or less generic and easy extendable JSON walk function. * Modified C examples to align with the changed C API. * c-collectd: Reduced lot's of code duplication by providing mapping tables. * nDPId: IAT array requires one slot less (first packet has always an IAT of 0). Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Improved flown analyse event:Toni Uhlig2022-09-22
| | | | | | | | * store packet directions * merged direction based IATs * merged direction based PKTLENs Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* nDPId: Reduced flow-updates for TCP flows to 1/4 of the timeout value.Toni Uhlig2022-09-19
| | | | | | | | | | | | * nDPId: Fixed broken validation tests. * nDPId: Removed TICK_RESOLUTION, not required anymore. * c-collectd: Improved total layer4 payload calculation/update handling. * c-collectd: Updated RRD Graph script according to total layer4 payload changes. * py-flow-info.py: Fixed several bugs and syntax errors. * Python scripts: Added dirname(argv[0]) as search path for nDPIsrvd.py. * nDPIsrvd&nDPId-test: Fixed missing EPOLLERR check. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Added layer4 payload length bins.Toni Uhlig2022-09-19
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Provide thread sync via locking on architectures that do not support ↵Toni Uhlig2022-09-17
| | | | | | Compare&Swap. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Fixed last pkt time.lns2022-09-14
| | | | Signed-off-by: lns <matzeton@googlemail.com>
* New flow event: 'analysis'.Toni Uhlig2022-09-13
| | | | | | | | | * The goal was to provide a separate event for extracted feature that are not required and only useful for a few (e.g. someone who wants do ML). * Increased network buffer size to 32kB (8192 * 4). * Switched timestamp precision from ms to us for *ALL* timestamps. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* nDPId: Removed thread_id nonsense as it does not provide any useful ↵Toni Uhlig2022-09-10
| | | | | | | | information and is not portable at all, not even on Linux systems .. * nDPId: Removed blocking I/O warning, which causes logspams.. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* include fixToni Uhlig2022-09-10
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Fixed compilation warnings on linux32 platforms.Toni Uhlig2022-09-10
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Do not use pthread_t as numeric value. Some systems define pthread_t as struct *Toni Uhlig2022-09-10
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Bump libnDPI to 37f918322c0a489b5143a987c8f1a44a6f78a6f3 and updated flow ↵Toni Uhlig2022-09-06
| | | | | | | | | json schema file. * export env vars AR / CMAKE_C_COMPILER_AR and RANLIB / CMAKE_C_COMPILER_RANLIB while building libnDPI * nDPId check API version during startup (macro vs. function call) and print a warning if they are different Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* nDPId: Fixed fcntl() issue; invalid fcntl() set after a blocking-write.lns2022-08-29
| | | | | | | * nDPId: imrpvoed collector socket error messages on connect/write/etc failures * reverted `netcat` parts of the README Signed-off-by: lns <matzeton@googlemail.com>
* nDPId: improved error messages if UNIX/UDP endpoint refuses ↵lns2022-08-27
| | | | | | connections/datagrams Signed-off-by: lns <matzeton@googlemail.com>
* nDPId: support for custom UDP endpointsToni Uhlig2022-08-27
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* nDPId: improved error messages if UNIX/UDP endpoint refuses ↵lns2022-08-27
| | | | | | connections/datagrams Signed-off-by: lns <matzeton@googlemail.com>
* nDPId: support for custom UDP endpointsToni Uhlig2022-08-27
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Split `*_l4_payload_len' into `*_src_l4_payload_len' and `*_dst_l4_payload_len'.Toni Uhlig2022-08-15
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Split `flow_packets_processed' into `flow_src_packets_processed' and ↵lns2022-08-15
| | | | | | | | | `flow_dst_packets_processed'. * no use for `flow_avg_l4_payload_len' -> removed * test/run_tests.sh does not fail if git-worktree's are used Signed-off-by: lns <matzeton@googlemail.com>
* Do not SIGSEGV if a subopt has no value.lns2022-08-08
| | | | Signed-off-by: lns <matzeton@googlemail.com>
* Replaced outdated nDPI version info with the correct one.Toni Uhlig2022-07-14
| | | | | | * add CI job to verify the lowest known-to-work-libnDPI-version Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* bump libnDPI to 8f6a006e36eef0ae386f7e663d3ebecfad6a2dc9Toni Uhlig2022-07-01
| | | | | | | * try to use same wording wherever possible e.g. renamed workflow->total_l4_data_len to workflow->total_l4_payload_len Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* bump libnDPI to 0b3f8ed849cdf9971224c49a3958f0904a2bbbb5lns2022-06-06
| | | | | | * README/nDPId: fixed typ0 Signed-off-by: lns <matzeton@googlemail.com>
* Small fixes.lns2022-04-26
| | | | Signed-off-by: lns <matzeton@googlemail.com>
* nDPId: Merged nDPId_flow_(info|finished) into nDPId_flowlns2022-04-24
| | | | | | | * nDPIsrvd: Fixed buffer allocation error due to missing memset() on disconnect * nDPIsrvd: Removed unused struct members Signed-off-by: lns <matzeton@googlemail.com>
* Added proper DLT_RAW dissection for IPv4 and IPv6.lns2022-04-24
| | | | | | | | | | * nDPId: Improved TCP timeout handling if FIN/RST seen which caused Midstream TCP flows when there shouldn't be any. * nDPIsrvd: Unified remote descriptor resource cleanup on disconnects/shutdown. * nDPIsrvd: Added additional error messages for remote descriptors. * py-flow-info: Better daemon status message printing. Signed-off-by: lns <matzeton@googlemail.com>
* bump libnDPI to bb12837ca75efc2691ecb18fd5f56e2d097ef26bToni Uhlig2022-03-24
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Executing ./tests/run_tests.sh w/o zLib should not result in diff's anymore.Toni Uhlig2022-03-24
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Reworked nDPIsrvd.h C-API.Toni Uhlig2022-03-21
| | | | | | | | | | | | * nDPIsrvd.h: Provide nDPId thread storage. * nDPIsrvd.py: Fixed instance cleanup bug. * nDPIsrvd.h: Support for instance/thread user data and cleanup callback. * nDPIsrvd.h: Most recent flow time stored in thread ht instead of instance ht. * nDPId: Moved flow logger out the memory profilier into SIGUSR1 signal handling. * nDPId: Added signal fd to be usable within epoll's event handling (live-capture only!) * nDPId: Added information about ZLib compressions to daemon status/shutdown events. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Renamed basic event to error event for the sake of the logic.Toni Uhlig2022-03-13
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Disconnect nDPIsrvd clients immediately instead waiting for a failed write().Toni Uhlig2022-03-13
| | | | | | | | | * nDPIsrvd: Collector/Distributor logging improved * nDPIsrvd: Command line option for max remote descriptors * nDPId: Stop spamming nDPIsrvd Collector with the same events over and over again * nDPId: Refactored some variable names and events Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Fixed build error regarding missing LINKTYPE_* define's.Toni Uhlig2022-03-06
| | | | Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Added daemon event: DAEMON_EVENT_STATUS (periodically send's daemon statistics.)Toni Uhlig2022-03-06
| | | | | | | | | | * Improved distributor timeout handling (per-thread). * flow-info.py / flow-dash.py: Distinguish between flow risk severities. * nDPId: Skip tag switch datalink packet dissection / processing. * nDPId: Fixed incorrect value for current active flows. * Improved JSON schema's. Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Serialize flow risk score / confidence.Toni Uhlig2022-02-27
| | | | | | | * bump libnDPI to 8b062295cc76a60e3905c054ce37bd17669464d1 * removed ndpi_id_struct's Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Improved py-flow-info to provide more optional information about received ↵Toni Uhlig2022-02-05
| | | | | | | | | | timestamps. * py-flow-dashboard: Added color mapping for PieCharts/Graph that make more sense * nDPId: Renamed `flow_type' to a more precisely `flow_state' * nDPId: Changed the default setting to process only as much packets as libnDPI does Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Added additional (minimalistic) detection information to flow updates.Toni Uhlig2022-02-04
| | | | | | | | | | | | | This will only affect flows with the state `FT_FINISHED' (detection done). * nDPIsrvd.py: force use of JSON schema Draft 7 validator * flow-dash.py: gather/use total processed layer4 payload size * flow-info.py: added additional event filter * flow-info.py: prettified flow events printing whose detection is in progress * py-semantic-validation.py: added validation checks for FT_FINISHED * updated flow event JSON schema Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* Added logging interface used by nDPId, nDPIsrvd and nDPId-test.Toni Uhlig2022-02-03
| | | | | | | | | * fixed GitLab pipeline * nDPId: added static assert (just for a test) * nDPId: memory profiling for total bytes compressed * nDPId-test: enable zLib compression if configured with ENABLE_ZLIB Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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