| Commit message (Collapse) | Author | Age |
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Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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Co-authored-by: Anshul Thakur <athakur@cdot.in>
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Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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Since 070a0908b we are able to detect P2P calls directly from the packet
content, without any correlation among flows
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After a flow has been classified as RTP or RTCP, nDPI might analyse more
packets to look for STUN/DTLS packets, i.e. to try to tell if this flow
is a "pure" RTP/RTCP flow or if the RTP/RTCP packets are multiplexed with
STUN/DTLS.
Useful for proper (sub)classification when the beginning of the flows
are not captured or if there are lost packets in the the captured traffic.
Disabled by default
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RFC4571 is not the only way to wrap RTP messages in TCP streams.
For example, when RTP is encapsulated over TURN flows (i.e. via DATA
attribute) there is no additional framing.
See also 6127e0490
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Support rtp/rtcp over tcp as per rfc4571.
Signed-off-by: mmaatuq <mahmoudmatook.mm@gmail.com>
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Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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* detect more Kafka request packet's
* requires less flow memory
* same detection behavior as before e.g. no asym detection implemented
(can be done by dissecting responses, requires more effort)
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
Co-authored-by: Nardi Ivan <nardi.ivan@gmail.com>
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* some `#ifdef`ed code dates back to 2019, 2020 and 2021
* some function signatures were still present in `ndpi_main.h`
which may cause linker errors for libnDPI dependee's
* return an error while trying to serialize a double instead
of `fprintf(stderr, ...)`
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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Removed
- int ndpi_load_ipv4_ptree_file(ndpi_ptree_t *tree, const char *path, u_int16_t protocol_id);
- int ndpi_load_ipv6_ptree_file(ndpi_ptree_t *tree, const char *path, u_int16_t protocol_id);
Added (it supports both IPv4 and v6)
+ int ndpi_load_ptree_file(ndpi_ptree_t *tree, const char *path, u_int16_t protocol_id);
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IRC has its best times well behind, but there are still some servers
using it.
We should try to simplify the detection logic, still based on OpenDPI
logic.
Let's start with some easy changes:
* try to detect TLS connection via standard hostname/SNI matching,
removing an old heuristic (we have never had any trace matching it);
* add some basic server names;
* once we detect that the flow is IRC, we don't have to perform
anything else;
* remove HTTP stuff; real HTTP flows never trigger that data path
* use `ndpi_memmem()` when possible
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Co-authored-by: Ivan Nardi <12729895+IvanNardi@users.noreply.github.com>
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There is some overlap between RTP and Raknet detection: give precedence
to RTP logic.
Consequences:
* Raknet might require a little bit more packets for some flows (not a
big issue)
* some very small (1-2 pkts) Raknet flows are not classified (not sure
what do do about that..)
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Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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* credits goes to Vladimir Gavrilov
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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- int ndpi_load_ipv4_ptree_file(ndpi_ptree_t *tree, const char *path, u_int16_t protocol_id);
- int ndpi_load_ipv6_ptree_file(ndpi_ptree_t *tree, const char *path, u_int16_t protocol_id);
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This cache was added in b6b4967aa, when there was no real Zoom support.
With 63f349319, a proper identification of multimedia stream has been
added, making this cache quite useless: any improvements on Zoom
classification should be properly done in Zoom dissector.
Tested for some months with a few 10Gbits links of residential traffic: the
cache pretty much never returned a valid hit.
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See RFC8122: it is quite likely that STUN/DTLS/SRTP flows use
self-signed certificates
Follow-up of b287d6ec8
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Avoid code duplication between these two protocols.
We remove support for RTCP over TCP; it is quite rare to find this kind
of traffic and, more important, we have never had support for RTP
over TCP: we should try to add both detecion as follow-up.
Fix a message log in the LINE code
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eDonkey is definitely not as used as >10 years ago, but it seems it is
still active.
While having a basic TCP support seems easy, identification over UDP doesn't
work and it is hard to do it rightly (packets might be only 2 bytes long):
remove it.
Credits to V.G <v.gavrilov@securitycode.ru>
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P2P video player PPStream was discontinued shortly after the purchase of PPS.tv by Baidu (iQIYI) on 2013 (see https://www.techinasia.com/report-baidu-acquires-video-rival-pps)
So we remove the old `NDPI_PROTOCOL_PPSTREAM` logic and add `NDPI_PROTOCOL_IQIYI` id to handle all the iQIYI traffic, which is basically video streaming traffic.
A video hosting service, called PPS.tv, is still offered by the same company: for the time being we classified both services with the same protocol id.
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```
nDPI/PcDebug64/src/include/ndpi_api.h:1970:3: error: function declaration isn’t a prototype [-Werror=strict-prototypes]
```
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* Add KNXnet/IP protocol support
* Improve KNXnet/IP over TCP detection
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* Added
size_t ndpi_compress_str(const char * in, size_t len, char * out, size_t bufsize);
size_t ndpi_decompress_str(const char * in, size_t len, char * out, size_t bufsize);
used to compress short strings such as domain names. This code is based on
https://github.com/Ed-von-Schleck/shoco
* Major code rewrite for ndpi_hash and ndpi_domain_classify
* Improvements to make sure custom categories are loaded and enabled
* Fixed string encoding
* Extended SalesForce/Cloudflare domains list
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Add other 2 configuration options
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Restore all unit tests.
Add some configuration knobs.
Fix the endianess.
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other_address parsing
Added code to ignore invalid STUN realm
Extended JSON output with STUN information
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* Add Label Distribution Protocol support
* Fix typo
* Update unit test results
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* Add The Elder Scrolls Online support
* Use ndpi_memmem instead of memmem from libc
* Add protocol description
* Change selection bitmask to V4_V6
* Update protocols.rst
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* Add memmem() implementation
* Fix build
* Add fix to avoid too many memcmp calls
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Modified NDPI_BINARY_TRANSFER_ATTEMPT in NDPI_BINARY_DATA_TRANSFER
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