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Add some fuzzers to test other data structures. (#1870)

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Start using a dictionary for fuzzing (see:
https://llvm.org/docs/LibFuzzer.html#dictionaries).
Remove some dead code.
Fuzzing with debug enabled is not usually a great idea (from performance
POV). Keep the code since it might be useful while debugging.
This commit is contained in:
Ivan Nardi 2023-01-25 11:44:59 +01:00 • committed by GitHub
parent 29c5cc39fb
commit 9fc724de5a
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184 changed files with 436 additions and 60 deletions
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17
fuzz/fuzz_common_code.c
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@ -34,22 +34,23 @@ void fuzz_set_alloc_callbacks_and_seed(int seed)
fuzz_set_alloc_seed(seed);
}
void fuzz_init_detection_module(struct ndpi_detection_module_struct **ndpi_info_mod,
int enable_log)
void fuzz_init_detection_module(struct ndpi_detection_module_struct **ndpi_info_mod)
{
ndpi_init_prefs prefs = ndpi_enable_ja3_plus;
NDPI_PROTOCOL_BITMASK all, debug_bitmask;
NDPI_PROTOCOL_BITMASK all;
if(*ndpi_info_mod == NULL) {
*ndpi_info_mod = ndpi_init_detection_module(prefs);
NDPI_BITMASK_SET_ALL(all);
ndpi_set_protocol_detection_bitmask2(*ndpi_info_mod, &all);
if(enable_log) {
NDPI_BITMASK_SET_ALL(debug_bitmask);
ndpi_set_log_level(*ndpi_info_mod, 4);
ndpi_set_debug_bitmask(*ndpi_info_mod, debug_bitmask);
}
#if 0
NDPI_PROTOCOL_BITMASK debug_bitmask;
NDPI_BITMASK_SET_ALL(debug_bitmask);
ndpi_set_log_level(*ndpi_info_mod, 4);
ndpi_set_debug_bitmask(*ndpi_info_mod, debug_bitmask);
#endif
ndpi_load_protocols_file(*ndpi_info_mod, "protos.txt");
ndpi_load_categories_file(*ndpi_info_mod, "categories.txt", NULL);