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fuzz: extend fuzzing coverage (#2626)

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Ivan Nardi 2024-11-20 13:36:41 +01:00 • committed by GitHub
parent c5bd9d8bff
commit 43f7dc9ba0
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5 changed files with 26 additions and 8 deletions
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7
fuzz/fuzz_config.cpp
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@ -36,6 +36,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
char cfg_param[32];
u_int64_t cat_userdata = 0;
u_int16_t unused1, unused2;
ndpi_master_app_protocol proto1, proto2;
/* To allow memory allocation failures */
fuzz_set_alloc_callbacks_and_seed(size);
@ -645,6 +646,12 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
ndpi_fpc_confidence_get_name(static_cast<ndpi_fpc_confidence_t>(fuzzed_data.ConsumeIntegral<u_int8_t>()));
ndpi_get_proto_breed_name(static_cast<ndpi_protocol_breed_t>(fuzzed_data.ConsumeIntegral<u_int8_t>()));
ndpi_get_l4_proto_name(static_cast<ndpi_l4_proto_info>(fuzzed_data.ConsumeIntegral<u_int8_t>()));
proto1.app_protocol = fuzzed_data.ConsumeIntegral<u_int16_t>();
proto1.master_protocol = fuzzed_data.ConsumeIntegral<u_int16_t>();
ndpi_is_proto_unknown(proto1);
proto2.app_protocol = fuzzed_data.ConsumeIntegral<u_int16_t>();
proto2.master_protocol = fuzzed_data.ConsumeIntegral<u_int16_t>();
ndpi_is_proto_equals(proto1, proto2, fuzzed_data.ConsumeBool());
char buf2[16];
ndpi_entropy2str(fuzzed_data.ConsumeFloatingPoint<float>(), fuzzed_data.ConsumeBool() ? buf2 : NULL, sizeof(buf2));