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Diffstat (limited to 'docs/custom_mutators.md')
| -rw-r--r-- | docs/custom_mutators.md | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/custom_mutators.md b/docs/custom_mutators.md index a22c809b..a128f587 100644 --- a/docs/custom_mutators.md +++ b/docs/custom_mutators.md @@ -32,6 +32,7 @@ performed with the custom mutator. C/C++: ```c void *afl_custom_init(afl_t *afl, unsigned int seed); +uint32_t afl_custom_fuzz_count(void *data, const u8 *buf, size_t buf_size); size_t afl_custom_fuzz(void *data, uint8_t *buf, size_t buf_size, u8 **out_buf, uint8_t *add_buf, size_t add_buf_size, size_t max_size); size_t afl_custom_post_process(void *data, uint8_t *buf, size_t buf_size, uint8_t **out_buf); int32_t afl_custom_init_trim(void *data, uint8_t *buf, size_t buf_size); @@ -49,6 +50,9 @@ Python: def init(seed): pass +def fuzz_count(buf, add_buf, max_size): + return cnt + def fuzz(buf, add_buf, max_size): return mutated_out @@ -88,6 +92,14 @@ def queue_new_entry(filename_new_queue, filename_orig_queue): This method determines whether the custom fuzzer should fuzz the current queue entry or not +- `fuzz_count` (optional): + + When a queue entry is selected to be fuzzed, afl-fuzz selects the number + of fuzzing attempts with this input based on a few factors. + If however the custom mutator wants to set this number instead on how often + it is called for a specific queue entry, use this function. + This function in mostly useful if **not** `AFL_CUSTOM_MUTATOR_ONLY` is used. + - `fuzz` (optional): This method performs custom mutations on a given input. It also accepts an |