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use crate::cache::{cached_function, cached_type_references};
use crate::matcher::invalidate_function_matcher_cache;
use binaryninja::binaryview::{BinaryView, BinaryViewExt};
use binaryninja::command::Command;
use binaryninja::function::Function;
use binaryninja::rc::Guard;
use rayon::prelude::*;
use std::io::Write;
use std::sync::atomic::AtomicUsize;
use std::sync::atomic::Ordering::Relaxed;
use std::thread;
use std::time::Instant;
pub struct CreateSignatureFile;
// TODO: Prompt the user to add the newly created signature file to the signature blacklist (so that it doesn't keep getting applied)
impl Command for CreateSignatureFile {
fn action(&self, view: &BinaryView) {
let is_function_named = |f: &Guard<Function>| {
!f.symbol().short_name().as_str().contains("sub_") || f.has_user_annotations()
};
let mut signature_dir = binaryninja::user_directory().unwrap().join("signatures/");
if let Some(default_plat) = view.default_platform() {
// If there is a default platform, put the signature in there.
signature_dir.push(default_plat.name().to_string());
}
let view = view.to_owned();
thread::spawn(move || {
let total_functions = view.functions().len();
let done_functions = AtomicUsize::default();
let background_task = binaryninja::backgroundtask::BackgroundTask::new(
format!("Generating signatures... ({}/{})", 0, total_functions),
true,
)
.unwrap();
let start = Instant::now();
let mut data = warp::signature::Data::default();
data.functions.par_extend(
view.functions()
.par_iter()
.inspect(|_| {
done_functions.fetch_add(1, Relaxed);
background_task.set_progress_text(format!("Generating signatures... ({}/{})", done_functions.load(Relaxed), total_functions))
})
.filter(is_function_named)
.filter(|f| !f.analysis_skipped())
.filter_map(|func| {
let llil = func.low_level_il().ok()?;
Some(cached_function(&func, &llil))
}),
);
if let Some(ref_ty_cache) = cached_type_references(&view) {
let referenced_types = ref_ty_cache
.cache
.iter()
.filter_map(|t| t.to_owned())
.collect::<Vec<_>>();
data.types.extend(referenced_types);
}
log::info!("Signature generation took {:?}", start.elapsed());
if let Some(sig_file_name) = binaryninja::interaction::get_text_line_input(
"Signature File",
"Create Signature File",
) {
let save_file = signature_dir.join(sig_file_name + ".sbin");
log::info!("Saving to signatures to {:?}...", &save_file);
// TODO: Should we overwrite? Prompt user.
if let Ok(mut file) = std::fs::File::create(&save_file) {
match file.write_all(&data.to_bytes()) {
Ok(_) => {
log::info!("Signature file saved successfully.");
// Force rebuild platform matcher.
invalidate_function_matcher_cache();
}
Err(e) => log::error!("Failed to write data to signature file: {:?}", e),
}
} else {
log::error!("Could not create signature file: {:?}", save_file);
}
}
background_task.finish();
});
}
fn valid(&self, _view: &BinaryView) -> bool {
true
}
}
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