| Commit message (Collapse) | Author | Age |
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* support for using a new flow callback invoked before the flow memory is free'd
* minor fixes
* Win32 gmtime fix
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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traffic/traces (#2209)
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Increment the counter only if the flow has been guessed
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Keep looking for RTP packets but remove the monitoring concept.
We will re-introduce a more general concept of "flow in monitoring
state" later.
The function was disabled by default.
Some configuration knobs will be provided when/if #2190 is merged.
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* Fix typo in ndpiSimpleIntegration.c
* Fix misspelling in a comment
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See: #2191
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Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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* added handling of parsing errors
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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Fix the script to download crawler addressess
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* logging is instead redirected to `ndpi_debug_printf`
Signed-off-by: lns <matzeton@googlemail.com>
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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probabilistic
approach for handling Internet domain names.
For switching back to Aho-Corasick it is necessary to edit
ndpi-typedefs.h and uncomment the line
// #define USE_LEGACY_AHO_CORASICK
[1] With Aho-Corasick
$ ./example/ndpiReader -G ./lists/ -i tests/pcap/ookla.pcap | grep Memory
nDPI Memory statistics:
nDPI Memory (once): 37.34 KB
Flow Memory (per flow): 960 B
Actual Memory: 33.09 MB
Peak Memory: 33.09 MB
[2] With the new algorithm
$ ./example/ndpiReader -G ./lists/ -i tests/pcap/ookla.pcap | grep Memory
nDPI Memory statistics:
nDPI Memory (once): 37.31 KB
Flow Memory (per flow): 960 B
Actual Memory: 7.42 MB
Peak Memory: 7.42 MB
In essence from ~33 MB to ~7 MB
This new algorithm will enable larger lists to be loaded (e.g. top 1M domans
https://s3-us-west-1.amazonaws.com/umbrella-static/index.html)
In ./lists there are file names that are named as <category>_<string>.list
With -G ndpiReader can load all of them at startup
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ndpi_filter* ndpi_filter_alloc(uint32_t elements_number);
bool ndpi_filter_add(ndpi_filter *f, uint64_t value);
bool ndpi_filter_contains(ndpi_filter *f, uint64_t value);
void ndpi_filter_free(ndpi_filter *f);
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Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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The option NSID (RFC5001) is used by Google DNS to report the
airport code of the metro where the DNS query is handled.
This option is quite rare, but the added overhead in DNS code is pretty
much zero for "normal" DNS traffic
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Use two separate lists:
* one for the ingress nodes, which triggers a ProtonVPN classification
* one for the egress nodes, which triggers the
`NDPI_ANONYMOUS_SUBSCRIBER` risk
Add a command line option (to `ndpiReader`) to easily test IP/port
matching.
Add another example of custom rule.
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- ndpi_cm_sketch_init()
- ndpi_cm_sketch_add()
- ndpi_cm_sketch_count()
- ndpi_cm_sketch_destroy()
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* added feature to extract filename from http attachment
* fixed some issues
* added check for filename format
* added check for filename format
* remove an unnecessary print
* changed the size from 952 to 960
* modified some test result files
* small changes string size
* comment removed and mallocs checked
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The two fields `flow->flow_type` and `flow->protos.rtp.stream_type` are
pretty much identical: rename the former in `flow->flow_multimedia_type`
and remove the latter.
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Look for RTP packets in the STUN sessions.
TODO: tell RTP from RTCP
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Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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* make user data available for any build config
Signed-off-by: lns <matzeton@googlemail.com>
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Some low hanging fruits found using nallocfuzz.
See: https://github.com/catenacyber/nallocfuzz
See: https://github.com/google/oss-fuzz/pull/9902
Most of these errors are quite trivial to fix; the only exception is the
stuff in the uthash.
If the insertion fails (because of an allocation failure), we need to
avoid some memory leaks. But the only way to check if the `HASH_ADD_*`
failed, is to perform a new lookup: a bit costly, but we don't use that
code in any critical data-path.
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Add a basic unit test
Fix an endianess issue
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There is no BitTorrent hash in the DNS flows
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