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switch to faster and better hash + random

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This commit is contained in:
van Hauser
2020-06-12 16:08:49 +02:00
parent db2e04361d
commit a632c00b0d
18 changed files with 5850 additions and 62 deletions
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10
src/afl-fuzz-redqueen.c
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@ -89,11 +89,11 @@ static struct range *pop_biggest_range(struct range **ranges) {
}
static u8 get_exec_checksum(afl_state_t *afl, u8 *buf, u32 len, u32 *cksum) {
static u8 get_exec_checksum(afl_state_t *afl, u8 *buf, u32 len, u64 *cksum) {
if (unlikely(common_fuzz_stuff(afl, buf, len))) { return 1; }
*cksum = hash32(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
*cksum = hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
return 0;
}
@ -109,7 +109,7 @@ static void rand_replace(afl_state_t *afl, u8 *buf, u32 len) {
}
static u8 colorization(afl_state_t *afl, u8 *buf, u32 len, u32 exec_cksum) {
static u8 colorization(afl_state_t *afl, u8 *buf, u32 len, u64 exec_cksum) {
struct range *ranges = add_range(NULL, 0, len);
u8 * backup = ck_alloc_nozero(len);
@ -137,7 +137,7 @@ static u8 colorization(afl_state_t *afl, u8 *buf, u32 len, u32 exec_cksum) {
memcpy(backup, buf + rng->start, s);
rand_replace(afl, buf + rng->start, s);
u32 cksum;
u64 cksum;
u64 start_us = get_cur_time_us();
if (unlikely(get_exec_checksum(afl, buf, len, &cksum))) {
@ -695,7 +695,7 @@ static u8 rtn_fuzz(afl_state_t *afl, u32 key, u8 *orig_buf, u8 *buf, u32 len) {
// afl->queue_cur->exec_cksum
u8 input_to_state_stage(afl_state_t *afl, u8 *orig_buf, u8 *buf, u32 len,
u32 exec_cksum) {
u64 exec_cksum) {
u8 r = 1;
if (afl->orig_cmp_map == NULL) {