write queue statistics
MODIFY
docs/Changelog.md
docs/Changelog.md
send fuzz data to the target as you need, e.g. via IPC.
- cmplog mode now has -l R option for random colorization, thanks
to guyf2010 for the PR!
+ - queue statistics are written every 30 minutes to
+ out/NAME/queue_data - likely this will be moved to a debug flag
+ in the future.
- afl-showmap/afl-cmin
- -t none now translates to -t 120000 (120 seconds)
- unicorn_mode updated

MODIFY
include/afl-fuzz.h
include/afl-fuzz.h
@@ -169,12 +169,18 @@ struct queue_entry {
u32 bitmap_size, /* Number of bits set in bitmap */
fuzz_level, /* Number of fuzzing iterations */
- n_fuzz_entry; /* offset in n_fuzz */
+ n_fuzz_entry, /* offset in n_fuzz */
+ stats_selected, /* stats: how often selected */
+ stats_skipped, /* stats: how often skipped */
+ stats_finds, /* stats: # of saved finds */
+ stats_crashes, /* stats: # of saved crashes */
+ stats_tmouts; /* stats: # of saved timeouts */
u64 exec_us, /* Execution time (us) */
handicap, /* Number of queue cycles behind */
depth, /* Path depth */
- exec_cksum; /* Checksum of the execution trace */
+ exec_cksum, /* Checksum of the execution trace */
+ stats_mutated; /* stats: # of mutations performed */
u8 *trace_mini; /* Trace bytes, if kept */
u32 tc_ref; /* Trace bytes ref count */
@@ -686,7 +692,8 @@ typedef struct afl_state {
u32 plot_prev_qp, plot_prev_pf, plot_prev_pnf, plot_prev_ce, plot_prev_md;
u64 plot_prev_qc, plot_prev_uc, plot_prev_uh, plot_prev_ed;
- u64 stats_last_stats_ms, stats_last_plot_ms, stats_last_ms, stats_last_execs;
+ u64 stats_last_stats_ms, stats_last_plot_ms, stats_last_queue_ms,
+ stats_last_ms, stats_last_execs;
/* StatsD */
u64 statsd_last_send_ms;
@@ -1101,6 +1108,7 @@ void load_stats_file(afl_state_t *);
void write_setup_file(afl_state_t *, u32, char **);
void write_stats_file(afl_state_t *, u32, double, double, double);
void maybe_update_plot_file(afl_state_t *, u32, double, double);
+void write_queue_stats(afl_state_t *);
void show_stats(afl_state_t *);
void show_stats_normal(afl_state_t *);
void show_stats_pizza(afl_state_t *);

MODIFY
include/config.h
include/config.h
#define UI_TARGET_HZ 5
-/* Fuzzer stats file and plot update intervals (sec): */
+/* Fuzzer stats file, queue stats and plot update intervals (sec): */
#define STATS_UPDATE_SEC 60
#define PLOT_UPDATE_SEC 5
+#define QUEUE_UPDATE_SEC 1800
/* Smoothing divisor for CPU load and exec speed stats (1 - no smoothing). */

MODIFY
src/afl-fuzz-init.c
src/afl-fuzz-init.c
@@ -1848,6 +1848,10 @@ static void handle_existing_out_dir(afl_state_t *afl) {
}
+ fn = alloc_printf("%s/queue_data", afl->out_dir);
+ if (unlink(fn) && errno != ENOENT) { goto dir_cleanup_failed; }
+ ck_free(fn);
+
fn = alloc_printf("%s/cmdline", afl->out_dir);
if (unlink(fn) && errno != ENOENT) { goto dir_cleanup_failed; }
ck_free(fn);

MODIFY
src/afl-fuzz-one.c
src/afl-fuzz-one.c
@@ -743,6 +743,7 @@ u8 fuzz_one_original(afl_state_t *afl) {
afl->stage_finds[STAGE_FLIP1] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP1] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Two walking bits. */
@@ -775,6 +776,7 @@ u8 fuzz_one_original(afl_state_t *afl) {
afl->stage_finds[STAGE_FLIP2] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP2] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Four walking bits. */
@@ -811,6 +813,7 @@ u8 fuzz_one_original(afl_state_t *afl) {
afl->stage_finds[STAGE_FLIP4] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP4] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Effector map setup. These macros calculate:
@@ -919,6 +922,7 @@ u8 fuzz_one_original(afl_state_t *afl) {
afl->stage_finds[STAGE_FLIP8] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP8] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Two walking bytes. */
@@ -962,6 +966,7 @@ u8 fuzz_one_original(afl_state_t *afl) {
afl->stage_finds[STAGE_FLIP16] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP16] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
if (len < 4) { goto skip_bitflip; }
@@ -1005,6 +1010,7 @@ u8 fuzz_one_original(afl_state_t *afl) {
afl->stage_finds[STAGE_FLIP32] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP32] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
skip_bitflip:
@@ -1097,6 +1103,7 @@ skip_bitflip:
afl->stage_finds[STAGE_ARITH8] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_ARITH8] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* 16-bit arithmetics, both endians. */
@@ -1227,6 +1234,7 @@ skip_bitflip:
afl->stage_finds[STAGE_ARITH16] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_ARITH16] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* 32-bit arithmetics, both endians. */
@@ -1356,6 +1364,7 @@ skip_bitflip:
afl->stage_finds[STAGE_ARITH32] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_ARITH32] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
skip_arith:
@@ -1422,6 +1431,7 @@ skip_arith:
afl->stage_finds[STAGE_INTEREST8] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_INTEREST8] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Setting 16-bit integers, both endians. */
@@ -1510,6 +1520,7 @@ skip_arith:
afl->stage_finds[STAGE_INTEREST16] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_INTEREST16] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
if (len < 4) { goto skip_interest; }
@@ -1599,6 +1610,7 @@ skip_arith:
afl->stage_finds[STAGE_INTEREST32] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_INTEREST32] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
skip_interest:
@@ -1672,6 +1684,7 @@ skip_interest:
afl->stage_finds[STAGE_EXTRAS_UO] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_EXTRAS_UO] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Insertion of user-supplied extras. */
@@ -1728,6 +1741,7 @@ skip_interest:
afl->stage_finds[STAGE_EXTRAS_UI] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_EXTRAS_UI] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
skip_user_extras:
@@ -1786,6 +1800,7 @@ skip_user_extras:
afl->stage_finds[STAGE_EXTRAS_AO] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_EXTRAS_AO] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Insertion of auto extras. */
@@ -1842,6 +1857,7 @@ skip_user_extras:
afl->stage_finds[STAGE_EXTRAS_AI] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_EXTRAS_AI] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
skip_extras:
@@ -1988,6 +2004,7 @@ custom_mutator_stage:
afl->stage_finds[STAGE_CUSTOM_MUTATOR] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_CUSTOM_MUTATOR] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
if (likely(afl->custom_only)) {
@@ -2925,11 +2942,13 @@ havoc_stage:
afl->stage_finds[STAGE_HAVOC] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_HAVOC] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
} else {
afl->stage_finds[STAGE_SPLICE] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_SPLICE] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
}
@@ -3411,6 +3430,7 @@ static u8 mopt_common_fuzzing(afl_state_t *afl, MOpt_globals_t MOpt_globals) {
afl->stage_finds[STAGE_FLIP1] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP1] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Two walking bits. */
@@ -3442,6 +3462,7 @@ static u8 mopt_common_fuzzing(afl_state_t *afl, MOpt_globals_t MOpt_globals) {
afl->stage_finds[STAGE_FLIP2] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP2] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Four walking bits. */
@@ -3477,6 +3498,7 @@ static u8 mopt_common_fuzzing(afl_state_t *afl, MOpt_globals_t MOpt_globals) {
afl->stage_finds[STAGE_FLIP4] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP4] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Effector map setup. These macros calculate:
@@ -3584,6 +3606,7 @@ static u8 mopt_common_fuzzing(afl_state_t *afl, MOpt_globals_t MOpt_globals) {
afl->stage_finds[STAGE_FLIP8] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP8] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Two walking bytes. */
@@ -3626,6 +3649,7 @@ static u8 mopt_common_fuzzing(afl_state_t *afl, MOpt_globals_t MOpt_globals) {
afl->stage_finds[STAGE_FLIP16] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP16] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
if (len < 4) { goto skip_bitflip; }
@@ -3668,6 +3692,7 @@ static u8 mopt_common_fuzzing(afl_state_t *afl, MOpt_globals_t MOpt_globals) {
afl->stage_finds[STAGE_FLIP32] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_FLIP32] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
skip_bitflip:
@@ -3758,6 +3783,7 @@ skip_bitflip:
afl->stage_finds[STAGE_ARITH8] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_ARITH8] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* 16-bit arithmetics, both endians. */
@@ -3884,6 +3910,7 @@ skip_bitflip:
afl->stage_finds[STAGE_ARITH16] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_ARITH16] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* 32-bit arithmetics, both endians. */
@@ -4009,6 +4036,7 @@ skip_bitflip:
afl->stage_finds[STAGE_ARITH32] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_ARITH32] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
skip_arith:
@@ -4074,6 +4102,7 @@ skip_arith:
afl->stage_finds[STAGE_INTEREST8] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_INTEREST8] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Setting 16-bit integers, both endians. */
@@ -4160,6 +4189,7 @@ skip_arith:
afl->stage_finds[STAGE_INTEREST16] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_INTEREST16] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
if (len < 4) { goto skip_interest; }
@@ -4247,6 +4277,7 @@ skip_arith:
afl->stage_finds[STAGE_INTEREST32] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_INTEREST32] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
skip_interest:
@@ -4320,6 +4351,7 @@ skip_interest:
afl->stage_finds[STAGE_EXTRAS_UO] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_EXTRAS_UO] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Insertion of user-supplied extras. */
@@ -4376,6 +4408,7 @@ skip_interest:
afl->stage_finds[STAGE_EXTRAS_UI] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_EXTRAS_UI] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
skip_user_extras:
@@ -4435,6 +4468,7 @@ skip_user_extras:
afl->stage_finds[STAGE_EXTRAS_AO] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_EXTRAS_AO] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
/* Insertion of auto extras. */
@@ -4491,6 +4525,7 @@ skip_user_extras:
afl->stage_finds[STAGE_EXTRAS_AI] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_EXTRAS_AI] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
skip_extras:
@@ -5316,11 +5351,13 @@ pacemaker_fuzzing:
afl->stage_finds[STAGE_HAVOC] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_HAVOC] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
} else {
afl->stage_finds[STAGE_SPLICE] += new_hit_cnt - orig_hit_cnt;
afl->stage_cycles[STAGE_SPLICE] += afl->stage_max;
+ afl->queue_cur->stats_mutated += afl->stage_max;
}

MODIFY
src/afl-fuzz-stats.c
src/afl-fuzz-stats.c
@@ -365,6 +365,36 @@ void write_stats_file(afl_state_t *afl, u32 t_bytes, double bitmap_cvg,
}
+void write_queue_stats(afl_state_t *afl) {
+
+ FILE *f;
+ u8 *fn = alloc_printf("%s/queue_data", afl->out_dir);
+ if ((f = fopen(fn, "w")) != NULL) {
+
+ u32 id;
+ fprintf(f,
+ "# filename, length, exec_us, selected, skipped, mutations, finds, "
+ "crashes, timeouts, bitmap_size, perf_score, weight, colorized, "
+ "favored, disabled\n");
+ for (id = 0; id < afl->queued_items; ++id) {
+
+ struct queue_entry *q = afl->queue_buf[id];
+ fprintf(f, "\"%s\",%u,%llu,%u,%u,%llu,%u,%u,%u,%u,%.3f,%.3f,%u,%u,%u\n",
+ q->fname, q->len, q->exec_us, q->stats_selected, q->stats_skipped,
+ q->stats_mutated, q->stats_finds, q->stats_crashes,
+ q->stats_tmouts, q->bitmap_size, q->perf_score, q->weight,
+ q->colorized, q->favored, q->disabled);
+
+ }
+
+ fclose(f);
+
+ }
+
+ ck_free(fn);
+
+}
+
/* Update the plot file if there is a reason to. */
void maybe_update_plot_file(afl_state_t *afl, u32 t_bytes, double bitmap_cvg,
@@ -613,6 +643,16 @@ void show_stats_normal(afl_state_t *afl) {
}
+ /* Every now and then, write queue data. */
+
+ if (unlikely(afl->force_ui_update ||
+ cur_ms - afl->stats_last_queue_ms > QUEUE_UPDATE_SEC * 1000)) {
+
+ afl->stats_last_queue_ms = cur_ms;
+ write_queue_stats(afl);
+
+ }
+
/* Honor AFL_EXIT_WHEN_DONE and AFL_BENCH_UNTIL_CRASH. */
if (unlikely(!afl->non_instrumented_mode && afl->cycles_wo_finds > 100 &&
@@ -1399,6 +1439,16 @@ void show_stats_pizza(afl_state_t *afl) {
}
+ /* Every now and then, write queue data. */
+
+ if (unlikely(afl->force_ui_update ||
+ cur_ms - afl->stats_last_queue_ms > QUEUE_UPDATE_SEC * 1000)) {
+
+ afl->stats_last_queue_ms = cur_ms;
+ write_queue_stats(afl);
+
+ }
+
/* Honor AFL_EXIT_WHEN_DONE and AFL_BENCH_UNTIL_CRASH. */
if (unlikely(!afl->non_instrumented_mode && afl->cycles_wo_finds > 100 &&

MODIFY
src/afl-fuzz.c
src/afl-fuzz.c
@@ -2278,7 +2278,7 @@ int main(int argc, char **argv_orig, char **envp) {
afl->start_time = get_cur_time();
u32 runs_in_current_cycle = (u32)-1;
- u32 prev_queued_items = 0;
+ u32 prev_queued_items = 0, prev_saved_crashes = 0, prev_saved_tmouts = 0;
u8 skipped_fuzz;
#ifdef INTROSPECTION
@@ -2529,23 +2529,57 @@ int main(int argc, char **argv_orig, char **envp) {
}
skipped_fuzz = fuzz_one(afl);
+ ++afl->queue_cur->stats_selected;
+ if (unlikely(skipped_fuzz)) {
+
+ ++afl->queue_cur->stats_skipped;
+
+ } else {
+
+ if (unlikely(afl->queued_items > prev_queued_items)) {
+
+ afl->queue_cur->stats_finds += afl->queued_items - prev_queued_items;
+ prev_queued_items = afl->queued_items;
+
+ }
+
+ if (unlikely(afl->saved_crashes > prev_saved_crashes)) {
+
+ afl->queue_cur->stats_crashes +=
+ afl->saved_crashes - prev_saved_crashes;
+ prev_saved_crashes = afl->saved_crashes;
+
+ }
+
+ if (unlikely(afl->saved_tmouts > prev_saved_tmouts)) {
+
+ afl->queue_cur->stats_tmouts += afl->saved_tmouts - prev_saved_tmouts;
+ prev_saved_tmouts = afl->saved_tmouts;
+
+ }
+
+ }
if (unlikely(!afl->stop_soon && exit_1)) { afl->stop_soon = 2; }
if (unlikely(afl->old_seed_selection)) {
while (++afl->current_entry < afl->queued_items &&
- afl->queue_buf[afl->current_entry]->disabled)
- ;
+ afl->queue_buf[afl->current_entry]->disabled) {};
if (unlikely(afl->current_entry >= afl->queued_items ||
afl->queue_buf[afl->current_entry] == NULL ||
- afl->queue_buf[afl->current_entry]->disabled))
+ afl->queue_buf[afl->current_entry]->disabled)) {
+
afl->queue_cur = NULL;
- else
+
+ } else {
+
afl->queue_cur = afl->queue_buf[afl->current_entry];
}
+ }
+
} while (skipped_fuzz && afl->queue_cur && !afl->stop_soon);
if (likely(!afl->stop_soon && afl->sync_id)) {

write queue statistics