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fuzz: extend fuzzing coverage

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Nardi Ivan 2023-09-15 20:30:30 +02:00 • committed by Ivan Nardi
parent 0828dff3ac
commit 70814002a9
9 changed files with 107 additions and 18 deletions
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63
fuzz/fuzz_binaryfusefilter.cpp Normal file
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#include "fuzz_common_code.h"
#include "../src/lib/third_party/include/binaryfusefilter.h"
#include "fuzzer/FuzzedDataProvider.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
FuzzedDataProvider fuzzed_data(data, size);
u_int16_t i, num_iteration;
bool rc;
u_int64_t *values, value;
binary_fuse8_t filter8;
binary_fuse16_t filter16;
/* To allow memory allocation failures */
fuzz_set_alloc_callbacks_and_seed(size);
size = fuzzed_data.ConsumeIntegral<u_int16_t>();
values = (u_int64_t *)ndpi_calloc(size, sizeof(u_int64_t));
if (!values)
return 0;
for (i = 0; i < size; i++) {
values[i] = fuzzed_data.ConsumeIntegral<u_int64_t>();
}
rc = binary_fuse8_allocate(size, &filter8);
if (rc) {
rc = binary_fuse8_populate(values, size, &filter8);
if (rc) {
/* "Random" search */
num_iteration = fuzzed_data.ConsumeIntegral<u_int8_t>();
for (i = 0; i < num_iteration; i++) {
value = fuzzed_data.ConsumeIntegral<u_int64_t>();
binary_fuse8_contain(value, &filter8);
}
/* Search of an added entry */
if (size > 0)
binary_fuse8_contain(values[0], &filter8);
}
binary_fuse8_free(&filter8);
}
rc = binary_fuse16_allocate(size, &filter16);
if (rc) {
rc = binary_fuse16_populate(values, size, &filter16);
if (rc) {
/* "Random" search */
num_iteration = fuzzed_data.ConsumeIntegral<u_int8_t>();
for (i = 0; i < num_iteration; i++) {
value = fuzzed_data.ConsumeIntegral<u_int64_t>();
binary_fuse16_contain(value, &filter16);
}
/* Search of an added entry */
if (size > 0)
binary_fuse16_contain(values[0], &filter16);
}
binary_fuse16_free(&filter16);
}
ndpi_free(values);
return 0;
}