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Fix fuzzing

master
Travis Burtrum 2 months ago
parent
2a6dea344f
commit
7c50b1bd18
6 changed files with 431 additions and 645 deletions
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  1. 414
      Cargo.lock
  2. 6
      Cargo.toml
  3. 588
      fuzz/Cargo.lock
  4. 13
      fuzz/Cargo.toml
  5. 53
      fuzz/src/main.rs
  6. 2
      src/common/mod.rs

414
Cargo.lock generated
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
[[package]]
name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
[[package]]
name = "xdg"
version = "2.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d089681aa106a86fade1b0128fb5daf07d5867a509ab036d99988dec80429a57"
[[package]]
name = "xmpp-proxy"
version = "1.0.0"
dependencies = [
"anyhow",
"die",
"futures",
"serde",
"serde_derive",
"tokio",
"toml",
]

13
fuzz/Cargo.toml
Unescape View File

@ -7,11 +7,8 @@ edition = "2018" @@ -7,11 +7,8 @@ edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
afl = "*"
xmpp-proxy = { version = "*", default-features = false, features = [] }
tokio = { version = "1.4", features = ["net", "rt", "rt-multi-thread", "macros", "io-util"] }
sha256 = "1.0.2"
rxml = "0.1.0"
[patch.crates-io]
xmpp-proxy = { path = "../" }
afl = "0.12.12"
xmpp-proxy = { path = "..", default-features = false, features = [] }
tokio = { version = "1.9", features = ["net", "rt", "rt-multi-thread", "macros", "io-util"] }
sha256 = "1.1.1"
rxml = "0.9.1"

53
fuzz/src/main.rs
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@ -1,37 +1,34 @@ @@ -1,37 +1,34 @@
#[macro_use]
extern crate afl;
extern crate xmpp_proxy;
use std::io;
use std::io::Cursor;
use std::io::{Cursor, Write};
use tokio::runtime::Runtime;
use xmpp_proxy::stanzafilter::{StanzaFilter, StanzaReader};
use xmpp_proxy::{StanzaFilter, StanzaReader};
fn main_gen_test_cases() {
fuzz!(|data: &[u8]| {
fn main() {
std::fs::create_dir_all("/tmp/afl_test_gen/").unwrap();
afl::fuzz!(|data: &[u8]| {
let rt = Runtime::new().unwrap();
rt.block_on(async {
let mut filter = StanzaFilter::new(262_144);
let mut stanza_reader = StanzaReader(Cursor::new(data));
while let Ok(Some(stanza)) = stanza_reader.next(&mut filter).await {
use rxml::EventRead;
let mut fp = rxml::FeedParser::new();
let stanza_vec = &stanza.to_vec();
fp.feed(stanza_vec);
fp.feed_eof();
let result = fp.read_all_eof(|_ev| {
let mut fp = rxml::FeedParser::default();
let result = rxml::as_eof_flag(fp.parse_all(&mut &stanza[..], true, |_ev| {
//println!("got event: {:?}", ev);
});
}));
// true indicates eof
if let Ok(result) = result {
if result {
// wow, afl generated us valid XML, lets output it as a test case
let fname = sha256::digest_bytes(&stanza);
std::fs::create_dir_all("/tmp/afl_test_gen/").unwrap();
std::fs::write("/tmp/afl_test_gen/".to_owned() + &fname, &stanza).unwrap();
let fname = sha256::digest(stanza);
if let Ok(mut file) = std::fs::OpenOptions::new()
.read(true)
.write(true)
.create_new(true)
.open("/tmp/afl_test_gen/".to_owned() + fname.as_str())
{
file.write_all(stanza).unwrap();
file.sync_all().unwrap();
}
} else {
// more data is required, stanzafilter should never let this happen, let's panic
panic!("more data required?");
@ -41,17 +38,3 @@ fn main_gen_test_cases() { @@ -41,17 +38,3 @@ fn main_gen_test_cases() {
})
});
}
fn main() {
fuzz!(|data: &[u8]| {
let rt = Runtime::new().unwrap();
rt.block_on(async {
let mut filter = StanzaFilter::new(262_144);
let mut stanza_reader = StanzaReader(Cursor::new(data));
while let Ok(Some(_stanza)) = stanza_reader.next(&mut filter).await {
//ret.push(to_str(stanza).to_string());
}
})
});
}

2
src/common/mod.rs
Unescape View File

@ -6,6 +6,7 @@ use crate::{ @@ -6,6 +6,7 @@ use crate::{
};
use anyhow::{bail, Result};
use log::{info, trace};
#[cfg(feature = "rustls")]
use rustls::{
sign::{RsaSigningKey, SigningKey},
Certificate, PrivateKey,
@ -21,6 +22,7 @@ pub mod outgoing; @@ -21,6 +22,7 @@ pub mod outgoing;
#[cfg(any(feature = "rustls-native-certs", feature = "webpki-roots"))]
pub mod ca_roots;
#[cfg(feature = "rustls")]
pub mod certs_key;
pub const IN_BUFFER_SIZE: usize = 8192;

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