* unfortunately, JSON schema definitions could not be used to make this easier to read and maintain
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* added new CMake option `ENABLE_MEMORY_STATUS` to restore the old behavior
(and increase performance)
* splitted `ENABLE_MEMORY_PROFILING` into `ENABLE_MEMORY_STATUS` and `ENABLE_MEMORY_PROFILING`
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* 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>
- link to already-existing JSON-schemas have been added
- a graphical schema detailing flow-events timeline have
been added in both PNG and source-Drawio formats.
Link to PNG have been included in the README
* 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>
* 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>
* 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>
* 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>
* 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>
* 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>
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>
* bump libnDPI to c53c82d4823b5a8f856d1375155ac5112b68e8af
* run_tests.sh: improved execution from non-git directories e.g. via `make dist`
* updated JSON schema to be more restrictive
* nDPId: splitted generic get_ip_from_sockaddr into IPv4/IPv6 to prevent compiler warnings on some platforms
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
- nDPId: fixed invalid IP4/IP6 tuple compare
- nDPIsrvd: fixed caching issue (finally)
- added tiny c example (can be used to check flow manager sanity)
- c-captured: use flow_last_seen timestamp from `struct nDPIsrvd_flow`
- README.md update: added example JSON sequence
- nDPId: added new flow event `update` necessary for correct
timeout handling (and other future use-cases)
- nDPIsrvd.h and nDPIsrvd.py: switched to an instance
(consists of an alias/source tuple) based flow manager
- every flow related event **must** now serialize `alias`, `source`,
`flow_id`, `flow_last_seen` and `flow_idle_time` to make the timeout
handling and verification process work correctly
- nDPIsrvd.h: ability to profile any dynamic memory (de-)allocation
- nDPIsrvd.py: removed PcapPacket class (unused)
- py-flow-dashboard and py-flow-multiprocess: fixed race condition
- py-flow-info: print statusbar with probably useful information
- nDPId/nDPIsrvd.h: switched from packet-flow only timestamps (`pkt_*sec`)
to a generic flow event timestamp `ts_msec`
- nDPId-test: added additional checks
- nDPId: increased ICMP flow timeout
- nDPId: using event based i/o if capturing packets from a device
- nDPIsrvd: fixed memory leak on shutdown if remote descriptors
were still connected
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* After the first packet was processed, "flow_last_seen" was still 0.
This behaviour is invalid as the first packet may contain l4 payload data e.g. for UDP
and it also breaks nDPId json consistency "flow_first_seen" > 0, but "flow_last_seen" == 0.
* JSON schema: set minimum timestamp value for Epoch timestamps to 24710 for flow_*_seen and
1 for pcap packet ts. Those values are dependant on some manipulated pcap's in libnDPI/tests/pcap.
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* nDPIsrvd services usually do not care about layer4 data length,
payload length is quite more essential for further processing
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
* fixed invalid flow event schema type
* added run_tests.sh to generate/diff JSON dumps
* renamed lot's of vars/fns in nDPId.c/nDPIsrvd.c, so nDPId-test.c can include "*.c"
* improved CMake dependency checks
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
