diff options
| author | Ivan Nardi <12729895+IvanNardi@users.noreply.github.com> | 2023-02-09 20:02:12 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-02-09 20:02:12 +0100 |
| commit | b51a2ac72a3cbd1b470890d0151a46da28e6754e (patch) | |
| tree | 694a86ec7690962b21fb2c1bcf12df9f842d5957 /src/lib/protocols/csgo.c | |
| parent | 4bb851384efb2a321def0bdb5e93786fac1cc02b (diff) | |
fuzz: some improvements and add two new fuzzers (#1881)
Remove `FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION` define from
`fuzz/Makefile.am`; it is already included by the main configure script
(when fuzzing).
Add a knob to force disabling of AESNI optimizations: this way we can
fuzz also no-aesni crypto code.
Move CRC32 algorithm into the library.
Add some fake traces to extend fuzzing coverage. Note that these traces
are hand-made (via scapy/curl) and must not be used as "proof" that the
dissectors are really able to identify this kind of traffic.
Some small updates to some dissectors:
CSGO: remove a wrong rule (never triggered, BTW). Any UDP packet starting
with "VS01" will be classified as STEAM (see steam.c around line 111).
Googling it, it seems right so.
XBOX: XBOX only analyses UDP flows while HTTP only TCP ones; therefore
that condition is false.
RTP, STUN: removed useless "break"s
Zattoo: `flow->zattoo_stage` is never set to any values greater or equal
to 5, so these checks are never true.
PPStream: `flow->l4.udp.ppstream_stage` is never read. Delete it.
TeamSpeak: we check for `flow->packet_counter == 3` just above, so the
following check `flow->packet_counter >= 3` is always false.
Diffstat (limited to 'src/lib/protocols/csgo.c')
| -rw-r--r-- | src/lib/protocols/csgo.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/src/lib/protocols/csgo.c b/src/lib/protocols/csgo.c index a7d0cd130..fc298e781 100644 --- a/src/lib/protocols/csgo.c +++ b/src/lib/protocols/csgo.c @@ -62,12 +62,6 @@ static void ndpi_search_csgo(struct ndpi_detection_module_struct* ndpi_struct, s return; } - if(packet->payload_packet_len >= 36 && w == 0x56533031ul) { - NDPI_LOG_INFO( ndpi_struct, "found csgo udp\n"); - ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_CSGO, NDPI_PROTOCOL_UNKNOWN, NDPI_CONFIDENCE_DPI); - return; - } - if(packet->payload_packet_len >= 36 && w == 0x01007364) { uint32_t w2 = htonl(get_u_int32_t(packet->payload, 4)); if(w2 == 0x70696e67) { |