mirror of
https://github.com/vel21ripn/nDPI.git
synced 2026-04-28 15:09:47 +00:00
b51a2ac72a
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.
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
#include "ndpi_api.h"
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#include "fuzz_common_code.h"
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#include <stdint.h>
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#include <stdio.h>
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#include "fuzzer/FuzzedDataProvider.h"
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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FuzzedDataProvider fuzzed_data(data, size);
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u_int16_t i, num_iteration;
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struct ndpi_hll *hll;
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int rc;
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/* Just to have some data */
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if(fuzzed_data.remaining_bytes() < 2048)
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return -1;
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/* To allow memory allocation failures */
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fuzz_set_alloc_callbacks_and_seed(size);
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hll = (struct ndpi_hll *)ndpi_malloc(sizeof(*hll));
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rc = ndpi_hll_init(hll, fuzzed_data.ConsumeIntegral<u_int8_t>());
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if (rc == 0) {
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num_iteration = fuzzed_data.ConsumeIntegral<u_int8_t>();
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for (i = 0; i < num_iteration; i++)
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ndpi_hll_add_number(hll, fuzzed_data.ConsumeIntegral<u_int32_t>());
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ndpi_hll_count(hll);
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ndpi_hll_reset(hll);
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num_iteration = fuzzed_data.ConsumeIntegral<u_int8_t>();
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for (i = 0; i < num_iteration; i++) {
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std::vector<int8_t>data = fuzzed_data.ConsumeBytes<int8_t>(fuzzed_data.ConsumeIntegral<u_int8_t>());
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ndpi_hll_add(hll, (char *)data.data(), data.size());
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}
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ndpi_hll_count(hll);
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ndpi_hll_destroy(hll);
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}
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ndpi_free(hll);
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return 0;
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}
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