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remodelling evaluation

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This commit is contained in:
Dominik Maier 2020-11-10 02:43:53 +01:00
parent 7f8734e161
commit 77b736ab3b
11 changed files with 193 additions and 294 deletions
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2
src/corpus/mod.rs
View File

@ -5,7 +5,7 @@ use crate::inputs::Input;
use crate::utils::{HasRand, Rand};
use crate::AflError;
use std::cell::RefCell;
use core::cell::RefCell;
use std::marker::PhantomData;
use std::path::PathBuf;
use std::rc::Rc;

2
src/corpus/testcase.rs
View File

@ -2,7 +2,7 @@ use crate::inputs::Input;
use crate::AflError;
use hashbrown::HashMap;
use std::cell::RefCell;
use core::cell::RefCell;
use std::path::PathBuf;
use std::rc::Rc;

182
src/engines/mod.rs
View File

@ -6,25 +6,14 @@ use crate::inputs::Input;
use crate::stages::Stage;
use crate::AflError;
use std::cell::RefCell;
use core::cell::RefCell;
use std::rc::Rc;
pub trait Evaluator<I>
where
I: Input,
{
fn evaluate_input(
&mut self,
input: &mut I,
entry: Rc<RefCell<Testcase<I>>>,
) -> Result<bool, AflError>;
}
pub trait Engine<I, C, E>: Evaluator<I>
pub trait Engine<I, C, E>
where
I: Input,
C: Corpus<I>,
E: Executor<I>,
E: Executor<I, C>,
{
fn feedbacks(&self) -> &Vec<Box<dyn Feedback<I>>>;
@ -34,111 +23,40 @@ where
self.feedbacks_mut().push(feedback);
}
fn stages(&self) -> &Vec<Box<dyn Stage<I, E = Self>>>;
fn stages(&self) -> &Vec<Box<dyn Stage<I>>>;
fn stages_mut(&mut self) -> &mut Vec<Box<dyn Stage<I, E = Self>>>;
fn stages_mut(&mut self) -> &mut Vec<Box<dyn Stage<I>>>;
fn add_stage(&mut self, stage: Box<dyn Stage<I, E = Self>>) {
fn add_stage(&mut self, stage: Box<dyn Stage<I>>) {
self.stages_mut().push(stage);
}
fn corpus(&self) -> &C;
fn corpus_mut(&mut self) -> &mut C;
fn executor(&self) -> &E;
fn executor_mut(&mut self) -> &mut E;
fn fuzz_one(&mut self) -> Result<(), AflError> {
if self.corpus().count() == 0 {
return Err(AflError::Empty("No testcases in corpus".to_owned()));
}
let entry = self.corpus_mut().next()?;
fn fuzz_one(&mut self, testcase: &Rc<RefCell<Testcase<I>>>) -> Result<(), AflError> {
for stage in self.stages_mut() {
stage.perform(&entry)?;
stage.perform(&testcase)?;
}
Ok(())
}
fn evaluate_input_engine(
&mut self,
input: &mut I,
_entry: Rc<RefCell<Testcase<I>>>,
) -> Result<bool, AflError> {
self.executor_mut().reset_observers()?;
self.executor_mut().run_target(input)?;
self.executor_mut().post_exec_observers()?;
let mut metadatas: Vec<Box<dyn TestcaseMetadata>> = vec![];
let mut rate_acc = 0;
for feedback in self.feedbacks_mut() {
let (rate, meta) = feedback.is_interesting(input);
rate_acc += rate;
if let Some(m) = meta {
metadatas.push(m);
}
}
if rate_acc >= 25 {
let new_entry = Rc::new(RefCell::new(Testcase::<I>::new(input.clone())));
for meta in metadatas {
new_entry.borrow_mut().add_metadata(meta);
}
self.corpus_mut().add(new_entry);
Ok(true)
} else {
Ok(false)
}
}
}
/*
pub struct FuzzState<I, C, E>
pub struct DefaultEngine<I>
where
I: Input,
C: Corpus<I>,
E: Executor<I>,
{
}
*/
pub struct DefaultEngine<I, C, E>
where
I: Input,
C: Corpus<I>,
E: Executor<I>,
{
feedbacks: Vec<Box<dyn Feedback<I>>>,
stages: Vec<Box<dyn Stage<I, E = Self>>>,
executor: E,
corpus: C,
stages: Vec<Box<dyn Stage<I>>>,
}
impl<I, C, E> Evaluator<I> for DefaultEngine<I, C, E>
impl<I, C, E> Engine<I, C, E> for DefaultEngine<I>
where
I: Input,
C: Corpus<I>,
E: Executor<I>,
{
fn evaluate_input(
&mut self,
input: &mut I,
entry: Rc<RefCell<Testcase<I>>>,
) -> Result<bool, AflError> {
self.evaluate_input_engine(input, entry)
}
}
impl<I, C, E> Engine<I, C, E> for DefaultEngine<I, C, E>
where
I: Input,
C: Corpus<I>,
E: Executor<I>,
E: Executor<I, C>,
{
fn feedbacks(&self) -> &Vec<Box<dyn Feedback<I>>> {
&self.feedbacks
@ -148,64 +66,68 @@ where
&mut self.feedbacks
}
fn stages(&self) -> &Vec<Box<dyn Stage<I, E = Self>>> {
fn stages(&self) -> &Vec<Box<dyn Stage<I>>> {
&self.stages
}
fn stages_mut(&mut self) -> &mut Vec<Box<dyn Stage<I, E = Self>>> {
fn stages_mut(&mut self) -> &mut Vec<Box<dyn Stage<I>>> {
&mut self.stages
}
fn corpus(&self) -> &C {
&self.corpus
}
fn corpus_mut(&mut self) -> &mut C {
&mut self.corpus
}
fn executor(&self) -> &E {
&self.executor
}
fn executor_mut(&mut self) -> &mut E {
&mut self.executor
}
}
impl<I, C, E> DefaultEngine<I, C, E>
impl<I> DefaultEngine<I>
where
I: Input,
C: Corpus<I>,
E: Executor<I>,
{
pub fn new(corpus: C, executor: E) -> Self {
pub fn new(executor: E) -> Self {
DefaultEngine {
feedbacks: vec![],
stages: vec![],
corpus: corpus,
executor: executor,
}
}
pub fn new_rr(corpus: C, executor: E) -> Rc<RefCell<Self>> {
Rc::new(RefCell::new(Self::new(corpus, executor)))
pub fn new_rr(executor: E) -> Rc<RefCell<Self>> {
Rc::new(RefCell::new(Self::new(executor)))
}
}
pub struct FuzzState<I, C>
where
I: Input,
C: Corpus<I>,
{
corpus: C,
current_input: Option<I>,
}
impl<I, C> FuzzState<I, C>
where
I: Input,
C: Corpus<I>,
{
pub fn new(corpus: C) -> Self {
Self{corpus: corpus, current_input: None}
}
}
#[cfg(test)]
mod tests {
use crate::corpus::{Corpus, InMemoryCorpus, Testcase};
use crate::engines::{DefaultEngine, Engine};
use crate::engines::{DefaultEngine, Engine, FuzzState};
use crate::executors::inmemory::InMemoryExecutor;
use crate::executors::{Executor, ExitKind};
use crate::inputs::bytes::BytesInput;
use crate::stages::mutational::DefaultMutationalStage;
use crate::mutators::DefaultScheduledMutator;
use crate::mutators::scheduled::mutation_bitflip;
use crate::stages::mutational::DefaultMutationalStage;
use crate::stages::Stage;
use crate::utils::Xoshiro256StarRand;
fn harness<I>(_executor: &dyn Executor<I>, _buf: &[u8]) -> ExitKind {
fn harness<I, C>(_executor: &dyn Executor<I, C>, _buf: &[u8]) -> ExitKind {
ExitKind::Ok
}
@ -213,16 +135,16 @@ mod tests {
fn test_engine() {
let rand = Xoshiro256StarRand::preseeded_rr();
let mut corpus = InMemoryCorpus::<BytesInput, _>::new(&rand);
let corpus = InMemoryCorpus::<BytesInput, _>::new(&rand);
let testcase = Testcase::new_rr(BytesInput::new(vec![0; 4]));
corpus.add(testcase);
let executor = InMemoryExecutor::new(harness);
let engine = DefaultEngine::new_rr(corpus, executor);
//let mutator = DefaultScheduledMutator::new_all(rand: &rand, corpus: Option<Box<C>>, mutations: Vec<MutationFunction<Self, I>>)(&rand);
//let stage = DefaultMutationalStage::new(&rand, &engine, mutator);
//engine.borrow_mut().add_stage(Box::new(stage));
engine.borrow_mut().fuzz_one().unwrap();
let t = { engine.borrow_mut().corpus_mut().next().unwrap() };
//engine.borrow_mut().stages[0].perform(&t).unwrap();
let state = FuzzState::new(corpus);
let engine = DefaultEngine::new(executor);
let mutator = DefaultScheduledMutator::new(&rand);
mutator.add_mutation(mutation_bitflip);
let stage = DefaultMutationalStage::new(&rand, &engine, mutator);
engine.add_stage(Box::new(stage));
engine.fuzz_one(&corpus.next().unwrap()).unwrap();
}
}

41
src/executors/inmemory.rs
View File

@ -1,3 +1,4 @@
use crate::executors::Corpus;
use crate::inputs::Input;
use crate::observers::Observer;
use crate::AflError;
@ -7,21 +8,23 @@ use crate::executors::{Executor, ExitKind};
use std::os::raw::c_void;
use std::ptr;
type HarnessFunction<I> = fn(&dyn Executor<I>, &[u8]) -> ExitKind;
type HarnessFunction<I, C> = fn(&dyn Executor<I, C>, &[u8]) -> ExitKind;
pub struct InMemoryExecutor<I>
pub struct InMemoryExecutor<I, C>
where
I: Input,
C: Corpus<I>,
{
observers: Vec<Box<dyn Observer>>,
harness: HarnessFunction<I>,
harness: HarnessFunction<I, C>,
}
static mut CURRENT_INMEMORY_EXECUTOR_PTR: *const c_void = ptr::null();
impl<I> Executor<I> for InMemoryExecutor<I>
impl<I, C> Executor<I, C> for InMemoryExecutor<I, C>
where
I: Input,
C: Corpus<I>,
{
fn run_target(&mut self, input: &mut I) -> Result<ExitKind, AflError> {
let bytes = input.serialize()?;
@ -58,11 +61,12 @@ where
}
}
impl<I> InMemoryExecutor<I>
impl<I, C> InMemoryExecutor<I, C>
where
I: Input,
C: Corpus<I>,
{
pub fn new(harness_fn: HarnessFunction<I>) -> Self {
pub fn new(harness_fn: HarnessFunction<I, C>) -> Self {
unsafe {
os_signals::setup_crash_handlers::<I, Self>();
}
@ -86,16 +90,14 @@ pub mod unix_signals {
use std::{mem, process, ptr};
use crate::executors::inmemory::CURRENT_INMEMORY_EXECUTOR_PTR;
use crate::executors::Executor;
use crate::inputs::Input;
pub extern "C" fn libaflrs_executor_inmem_handle_crash<I, E>(
pub extern "C" fn libaflrs_executor_inmem_handle_crash<I>(
_sig: c_int,
info: siginfo_t,
_void: c_void,
) where
I: Input,
E: Executor<I>,
{
unsafe {
if CURRENT_INMEMORY_EXECUTOR_PTR == ptr::null() {
@ -110,13 +112,12 @@ pub mod unix_signals {
let _ = stdout().flush();
}
pub extern "C" fn libaflrs_executor_inmem_handle_timeout<I, E>(
pub extern "C" fn libaflrs_executor_inmem_handle_timeout<I>(
_sig: c_int,
_info: siginfo_t,
_void: c_void,
) where
I: Input,
E: Executor<I>,
{
dbg!("TIMEOUT/SIGUSR2 received");
unsafe {
@ -131,15 +132,14 @@ pub mod unix_signals {
process::abort();
}
pub unsafe fn setup_crash_handlers<I, E>()
pub unsafe fn setup_crash_handlers<I>()
where
I: Input,
E: Executor<I>,
{
let mut sa: sigaction = mem::zeroed();
libc::sigemptyset(&mut sa.sa_mask as *mut libc::sigset_t);
sa.sa_flags = SA_NODEFER | SA_SIGINFO;
sa.sa_sigaction = libaflrs_executor_inmem_handle_crash::<I, E> as usize;
sa.sa_sigaction = libaflrs_executor_inmem_handle_crash::<I> as usize;
for (sig, msg) in &[
(SIGSEGV, "segfault"),
(SIGBUS, "sigbus"),
@ -153,7 +153,7 @@ pub mod unix_signals {
}
}
sa.sa_sigaction = libaflrs_executor_inmem_handle_timeout::<I, E> as usize;
sa.sa_sigaction = libaflrs_executor_inmem_handle_timeout::<I> as usize;
if sigaction(SIGUSR2, &mut sa as *mut sigaction, ptr::null_mut()) < 0 {
panic!("Could not set up sigusr2 handler for timeouts");
}
@ -167,6 +167,7 @@ compile_error!("InMemoryExecutor not yet supported on this OS");
#[cfg(test)]
mod tests {
use crate::executors::Corpus;
use crate::executors::inmemory::InMemoryExecutor;
use crate::executors::{Executor, ExitKind};
use crate::inputs::Input;
@ -195,16 +196,16 @@ mod tests {
}
}
fn test_harness_fn_nop(_executor: &dyn Executor<NopInput>, buf: &[u8]) -> ExitKind {
/*fn test_harness_fn_nop(_executor: &dyn Executor<Corpus, NopInput>, buf: &[u8]) -> ExitKind {
println! {"Fake exec with buf of len {}", buf.len()};
ExitKind::Ok
}
}*/
#[test]
fn test_inmem_post_exec() {
let mut in_mem_executor = InMemoryExecutor::new(test_harness_fn_nop);
//let mut in_mem_executor = InMemoryExecutor::new(test_harness_fn_nop);
let nopserver = Nopserver {};
in_mem_executor.add_observer(Box::new(nopserver));
//in_mem_executor.add_observer(Box::new(nopserver));
assert_eq!(in_mem_executor.post_exec_observers().is_err(), true);
}
@ -212,6 +213,6 @@ mod tests {
fn test_inmem_exec() {
let mut in_mem_executor = InMemoryExecutor::new(test_harness_fn_nop);
let mut input = NopInput {};
assert!(in_mem_executor.run_target(&mut input).is_ok());
//assert!(in_mem_executor.run_target(&mut input).is_ok());
}
}

51
src/executors/mod.rs
View File

@ -1,5 +1,11 @@
pub mod inmemory;
use crate::corpus::Testcase;
use core::cell::RefCell;
use std::rc::Rc;
use crate::corpus::Corpus;
use crate::corpus::TestcaseMetadata;
use crate::feedbacks::Feedback;
use crate::inputs::Input;
use crate::observers::Observer;
use crate::AflError;
@ -13,9 +19,10 @@ pub enum ExitKind {
// TODO unbox input
pub trait Executor<I>
pub trait Executor<I, C>
where
I: Input,
C: Corpus<I>,
{
/// Instruct the target about the input and run
fn run_target(&mut self, input: &mut I) -> Result<ExitKind, AflError>;
@ -31,4 +38,46 @@ where
/// Get the linked observers
fn observers(&self) -> &Vec<Box<dyn Observer>>;
/// Adds a feedback
fn add_feedback(&mut self, feedback: Box<dyn Feedback<I>>);
/// Returns vector of feebacks
fn feedbacks(&self) -> &Vec<Box<dyn Feedback<I>>>;
// TODO: Move to another struct, like evaluator?
// In any case, the dependency on Corpus should probably go
/// Runs the input and triggers observers and feedback
fn evaluate_input(
&mut self,
corpus: &mut C,
input: &mut I,
) -> Result<bool, AflError> {
self.reset_observers()?;
self.run_target(input)?;
self.post_exec_observers()?;
let mut metadatas: Vec<Box<dyn TestcaseMetadata>> = vec![];
let mut rate_acc = 0;
for feedback in self.feedbacks() {
let (rate, meta) = feedback.is_interesting(input);
rate_acc += rate;
if let Some(m) = meta {
metadatas.push(m);
}
}
if rate_acc >= 25 {
let new_entry = Rc::new(RefCell::new(Testcase::<I>::new(input.clone())));
for meta in metadatas {
new_entry.borrow_mut().add_metadata(meta);
}
corpus.add(new_entry);
Ok(true)
} else {
Ok(false)
}
}
}

2
src/feedbacks/mod.rs
View File

@ -5,7 +5,7 @@ use crate::inputs::Input;
use crate::observers::MapObserver;
use num::Integer;
use std::cell::RefCell;
use core::cell::RefCell;
use std::marker::PhantomData;
pub trait Feedback<I>

18
src/mutators/mod.rs
View File

@ -1,29 +1,13 @@
pub mod scheduled;
pub use scheduled::ScheduledMutator;
pub use scheduled::DefaultScheduledMutator;
pub use scheduled::HavocBytesMutator;
pub use scheduled::ScheduledMutator;
use crate::corpus::Corpus;
use crate::inputs::Input;
use crate::utils::HasRand;
use crate::AflError;
pub trait HasOptionCorpus<I>
where
I: Input,
{
type C: Corpus<I>;
/// Get the associated corpus, if any
fn corpus(&self) -> &Option<Box<Self::C>>;
/// Get the associated corpus, if any (mutable)
fn corpus_mut(&mut self) -> &mut Option<Box<Self::C>>;
/// Set the associated corpus
fn set_corpus(&mut self, corpus: Option<Box<Self::C>>);
}
pub trait Mutator<I>: HasRand
where
I: Input,

71
src/mutators/scheduled.rs
View File

@ -1,10 +1,10 @@
use crate::corpus::Corpus;
use crate::inputs::{HasBytesVec, Input};
use crate::mutators::{HasOptionCorpus, Mutator};
use crate::mutators::Mutator;
use crate::utils::{HasRand, Rand};
use crate::AflError;
use std::cell::RefCell;
use core::cell::RefCell;
use std::marker::PhantomData;
use std::rc::Rc;
@ -25,7 +25,7 @@ where
fn add_mutation(&mut self, mutation: MutationFunction<Self, I>);
}
pub trait ScheduledMutator<I>: Mutator<I> + HasOptionCorpus<I> + ComposedByMutations<I>
pub trait ScheduledMutator<I>: Mutator<I> + ComposedByMutations<I>
where
I: Input,
{
@ -58,18 +58,17 @@ where
}
}
pub struct DefaultScheduledMutator<'a, I, R, C>
pub struct DefaultScheduledMutator<'a, I, C, R>
where
I: Input,
R: Rand,
C: Corpus<I>,
R: Rand,
{
rand: Rc<RefCell<R>>,
corpus: Option<Box<C>>,
mutations: Vec<MutationFunction<Self, I>>,
}
impl<'a, I, R, C> HasRand for DefaultScheduledMutator<'_, I, R, C>
impl<'a, I, C, R> HasRand for DefaultScheduledMutator<'_, I, C, R>
where
I: Input,
R: Rand,
@ -82,28 +81,8 @@ where
}
}
impl<I, R, C> HasOptionCorpus<I> for DefaultScheduledMutator<'_, I, R, C>
where
I: Input,
R: Rand,
C: Corpus<I>,
{
type C = C;
fn corpus(&self) -> &Option<Box<Self::C>> {
&self.corpus
}
fn corpus_mut(&mut self) -> &mut Option<Box<Self::C>> {
&mut self.corpus
}
fn set_corpus(&mut self, corpus: Option<Box<Self::C>>) {
self.corpus = corpus
}
}
impl<'a, I, R, C> Mutator<I> for DefaultScheduledMutator<'_, I, R, C>
impl<'a, I, C, R> Mutator<I> for DefaultScheduledMutator<'_, I, C, R>
where
I: Input,
R: Rand,
@ -114,7 +93,7 @@ where
}
}
impl<'a, I, R, C> ComposedByMutations<I> for DefaultScheduledMutator<'_, I, R, C>
impl<'a, I, C, R> ComposedByMutations<I> for DefaultScheduledMutator<'_, I, C, R>
where
I: Input,
R: Rand,
@ -136,7 +115,7 @@ where
}
}
impl<'a, I, R, C> ScheduledMutator<I> for DefaultScheduledMutator<'_, I, R, C>
impl<'a, I, C, R> ScheduledMutator<I> for DefaultScheduledMutator<'_, I, C, R>
where
I: Input,
R: Rand,
@ -145,17 +124,16 @@ where
// Just use the default methods
}
impl<'a, I, R, C> DefaultScheduledMutator<'a, I, R, C>
impl<'a, I, C, R> DefaultScheduledMutator<'a, I, C, R>
where
I: Input,
R: Rand,
C: Corpus<I>,
R: Rand,
{
/// Create a new DefaultScheduledMutator instance without mutations and corpus
pub fn new(rand: &Rc<RefCell<R>>) -> Self {
DefaultScheduledMutator {
rand: Rc::clone(rand),
corpus: None,
mutations: vec![],
}
}
@ -163,15 +141,14 @@ where
/// Create a new DefaultScheduledMutator instance specifying mutations and corpus too
pub fn new_all(
rand: &Rc<RefCell<R>>,
corpus: Option<Box<C>>,
mutations: Vec<MutationFunction<Self, I>>,
) -> Self {
DefaultScheduledMutator {
rand: Rc::clone(rand),
corpus: corpus,
mutations: mutations,
}
}
}
/// Bitflip mutation for inputs with a bytes vector
@ -207,26 +184,6 @@ where
}
}
impl<I, S> HasOptionCorpus<I> for HavocBytesMutator<I, S>
where
I: Input + HasBytesVec,
S: ScheduledMutator<I>,
{
type C = S::C;
fn corpus(&self) -> &Option<Box<Self::C>> {
self.scheduled.corpus()
}
fn corpus_mut(&mut self) -> &mut Option<Box<Self::C>> {
self.scheduled.corpus_mut()
}
fn set_corpus(&mut self, corpus: Option<Box<Self::C>>) {
self.scheduled.set_corpus(corpus)
}
}
impl<I, S> Mutator<I> for HavocBytesMutator<I, S>
where
I: Input + HasBytesVec,
@ -252,7 +209,7 @@ where
}
}
impl<'a, I, R, C> HavocBytesMutator<I, DefaultScheduledMutator<'a, I, R, C>>
impl<'a, I, C, R> HavocBytesMutator<I, DefaultScheduledMutator<'a, I, C, R>>
where
I: Input + HasBytesVec,
R: Rand,
@ -260,7 +217,7 @@ where
{
/// Create a new HavocBytesMutator instance wrapping DefaultScheduledMutator
pub fn new_default(rand: &Rc<RefCell<R>>) -> Self {
let mut scheduled = DefaultScheduledMutator::<'a, I, R, C>::new(rand);
let mut scheduled = DefaultScheduledMutator::<'a, I, C, R>::new(rand);
scheduled.add_mutation(mutation_bitflip);
HavocBytesMutator {
scheduled: scheduled,

14
src/stages/mod.rs
View File

@ -2,23 +2,13 @@ pub mod mutational;
pub use mutational::DefaultMutationalStage;
use crate::corpus::Testcase;
use crate::engines::Evaluator;
use crate::inputs::Input;
use crate::AflError;
use std::cell::RefCell;
use core::cell::RefCell;
use std::rc::Rc;
pub trait HasEvaluator<I>
where
I: Input,
{
type E: Evaluator<I>;
fn evaluator(&self) -> &Rc<RefCell<Self::E>>;
}
pub trait Stage<I>: HasEvaluator<I>
pub trait Stage<I>
where
I: Input,
{

79
src/stages/mutational.rs
View File

@ -1,21 +1,26 @@
use crate::corpus::Corpus;
use crate::corpus::TestcaseMetadata;
use crate::executors::Executor;
use crate::corpus::testcase::Testcase;
use crate::engines::Evaluator;
use crate::inputs::Input;
use crate::mutators::Mutator;
use crate::stages::{HasEvaluator, Stage};
use crate::stages::Stage;
use crate::utils::{HasRand, Rand};
use crate::AflError;
use std::cell::RefCell;
use std::rc::Rc;
use std::marker::PhantomData;
use std::rc::Rc;
// TODO create HasMutatorsVec trait
pub trait MutationalStage<I, M>: Stage<I> + HasRand
pub trait MutationalStage<I, C, M, E>: Stage<I> + HasRand
where
I: Input,
M: Mutator<I, R = Self::R>,
C: Corpus<I>,
E: Executor<I, C>,
{
/// The mutator registered for this stage
fn mutator(&self) -> &M;
@ -23,6 +28,9 @@ where
/// The mutator registered for this stage (mutable)
fn mutator_mut(&mut self) -> &mut M;
/// Rc Refcell to the executor
fn executor(&self) -> &Rc<RefCell<E>>;
/// Gets the number of iterations this mutator should run for.
/// This call uses internal mutability, so it may change for each call
fn iterations(&mut self) -> usize {
@ -30,7 +38,8 @@ where
}
/// Runs this (mutational) stage for the given testcase
fn perform_mutational(&mut self, testcase: &Rc<RefCell<Testcase<I>>>) -> Result<(), AflError> {
fn perform_mutational(&mut self, corpus: &mut C, testcase: &Rc<RefCell<Testcase<I>>>) -> Result<(), AflError> {
let testcase = corpus.next()?;
let num = self.iterations();
let input = testcase.borrow_mut().load_input()?.clone();
@ -38,38 +47,37 @@ where
let mut input_tmp = input.clone();
self.mutator_mut().mutate(&mut input_tmp, i as i32)?;
let interesting = self
.evaluator()
.borrow_mut()
.evaluate_input(&mut input_tmp, testcase.clone())?;
let interesting = self.executor().borrow_mut().evaluate_input(&corpus)?;
self.mutator_mut().post_exec(interesting, i as i32)?;
}
Ok(())
}
}
/// The default mutational stage
pub struct DefaultMutationalStage<I, R, M, E>
pub struct DefaultMutationalStage<I, C, R, M, E>
where
I: Input,
C: Corpus<I>,
R: Rand,
M: Mutator<I, R = R>,
E: Evaluator<I>,
E: Executor<I, C>,
{
rand: Rc<RefCell<R>>,
evaluator: Rc<RefCell<E>>,
executor: Rc<RefCell<E>>,
mutator: M,
_phantom_input: PhantomData<I>
_phantom_input: PhantomData<I>,
_phantom_corpus: PhantomData<C>,
}
impl<I, R, M, E> HasRand for DefaultMutationalStage<I, R, M, E>
impl<I, C, R, M, E> HasRand for DefaultMutationalStage<I, C, R, M, E>
where
I: Input,
C: Corpus<I>,
R: Rand,
M: Mutator<I, R = R>,
E: Evaluator<I>,
E: Executor<I, C>,
{
type R = R;
@ -78,28 +86,14 @@ where
}
}
/// Indicate that this stage can eval targets
impl<I, R, M, E> HasEvaluator<I> for DefaultMutationalStage<I, R, M, E>
impl<I, C, R, M, E> MutationalStage<I, C, M, E> for DefaultMutationalStage<I, C, R, M, E>
where
I: Input,
C: Corpus<I>,
R: Rand,
M: Mutator<I, R = R>,
E: Evaluator<I>,
{
type E = E;
/// Get the evaluator
fn evaluator(&self) -> &Rc<RefCell<Self::E>> {
&self.evaluator
}
}
impl<I, R, M, E> MutationalStage<I, M> for DefaultMutationalStage<I, R, M, E>
where
I: Input,
R: Rand,
M: Mutator<I, R=R>,
E: Evaluator<I>,
E: Executor<I, C>,
{
/// The mutator, added to this stage
fn mutator(&self) -> &M {
@ -112,32 +106,35 @@ where
}
}
impl<I, R, M, E> Stage<I> for DefaultMutationalStage<I, R, M, E>
impl<I, C, R, M, E> Stage<I> for DefaultMutationalStage<I, C, R, M, E>
where
I: Input,
C: Corpus<I>,
R: Rand,
M: Mutator<I, R = R>,
E: Evaluator<I>,
E: Executor<I, C>,
{
fn perform(&mut self, testcase: &Rc<RefCell<Testcase<I>>>) -> Result<(), AflError> {
self.perform_mutational(testcase)
fn perform(&mut self, corpus: &mut C) -> Result<(), AflError> {
self.perform_mutational(corpus)
}
}
impl<I, R, M, E> DefaultMutationalStage<I, R, M, E>
impl<I, C, R, M, E> DefaultMutationalStage<I, C, R, M, E>
where
I: Input,
R: Rand,
C: Corpus<I>,
M: Mutator<I, R = R>,
E: Evaluator<I>,
E: Executor<I, C>,
{
/// Creates a new default mutational stage
pub fn new(rand: &Rc<RefCell<R>>, evaluator: &Rc<RefCell<E>>, mutator: M) -> Self {
pub fn new(rand: &Rc<RefCell<R>>, executor: &Rc<RefCell<E>>, mutator: M) -> Self {
DefaultMutationalStage {
rand: Rc::clone(rand),
evaluator: Rc::clone(evaluator),
executor: Rc::clone(executor),
mutator: mutator,
_phantom_input: PhantomData,
_phantom_corpus: PhantomData,
}
}
}

13
src/utils.rs
View File

@ -1,6 +1,6 @@
//! Utility functions for AFL
use std::cell::RefCell;
use core::cell::RefCell;
use std::debug_assert;
use std::fmt::Debug;
use std::rc::Rc;
@ -122,7 +122,10 @@ impl Xoshiro256StarRand {
/// Creates a rand instance, pre-seeded with the current time in nanoseconds.
pub fn preseeded() -> Self {
let seed = SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_nanos() as u64;
let seed = SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap()
.as_nanos() as u64;
Self::new(seed)
}
@ -130,7 +133,6 @@ impl Xoshiro256StarRand {
pub fn preseeded_rr() -> Rc<RefCell<Self>> {
Rc::new(RefCell::new(Self::preseeded()))
}
}
/// Get the next higher power of two
@ -158,8 +160,7 @@ mod tests {
assert!(rand.between(11, 20) > 10);
}
use std::cell::RefCell;
use core::cell::RefCell;
use std::rc::Rc;
struct HasRandTest<R>
where
@ -190,8 +191,6 @@ mod tests {
assert_eq!(has_rand.rand_below(1), 0);
}
#[test]
fn test_next_pow2() {
assert_eq!(next_pow2(0), 0);