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mopt: seed from state rand instead of current_nanos (#902)

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Mrmaxmeier 2022-11-20 09:21:16 +01:00 committed by GitHub
parent 948c94d695
commit ff2971068f
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1 changed files with 5 additions and 7 deletions
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12
libafl/src/mutators/mopt_mutator.rs
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@ -8,10 +8,7 @@ use core::{
use serde::{Deserialize, Serialize}; use serde::{Deserialize, Serialize};
use crate::{ use crate::{
bolts::{ bolts::rands::{Rand, StdRand},
current_nanos,
rands::{Rand, StdRand},
},
corpus::Corpus, corpus::Corpus,
mutators::{ComposedByMutations, MutationResult, Mutator, MutatorsTuple, ScheduledMutator}, mutators::{ComposedByMutations, MutationResult, Mutator, MutatorsTuple, ScheduledMutator},
state::{HasCorpus, HasMetadata, HasRand, HasSolutions}, state::{HasCorpus, HasMetadata, HasRand, HasSolutions},
@ -141,9 +138,9 @@ const PERIOD_PILOT_COEF: f64 = 5000.0;
impl MOpt { impl MOpt {
/// Creates a new [`struct@MOpt`] instance. /// Creates a new [`struct@MOpt`] instance.
pub fn new(operator_num: usize, swarm_num: usize) -> Result<Self, Error> { pub fn new(operator_num: usize, swarm_num: usize, rand_seed: u64) -> Result<Self, Error> {
let mut mopt = Self { let mut mopt = Self {
rand: StdRand::with_seed(current_nanos()), rand: StdRand::with_seed(rand_seed),
total_finds: 0, total_finds: 0,
finds_until_last_swarm: 0, finds_until_last_swarm: 0,
w_init: 0.9, w_init: 0.9,
@ -537,7 +534,8 @@ where
swarm_num: usize, swarm_num: usize,
) -> Result<Self, Error> { ) -> Result<Self, Error> {
if !state.has_metadata::<MOpt>() { if !state.has_metadata::<MOpt>() {
state.add_metadata::<MOpt>(MOpt::new(mutations.len(), swarm_num)?); let rand_seed = state.rand_mut().next();
state.add_metadata::<MOpt>(MOpt::new(mutations.len(), swarm_num, rand_seed)?);
} }
Ok(Self { Ok(Self {
mode: MOptMode::Pilotfuzzing, mode: MOptMode::Pilotfuzzing,