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Add symbols for non-windows dll proxying

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Signed-off-by: Dimitris Zervas <dzervas@dzervas.gr>
This commit is contained in:
Dimitris Zervas 2024-04-13 03:24:16 +03:00
parent ed6f77e71c
commit a4bf277c47
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3 changed files with 66 additions and 46 deletions
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1
.gitignore vendored
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@ -8,3 +8,4 @@ __handlers__
/examples/cs/bin
/examples/cs/obj
/dotnet
src/symbols.rs

23
build.rs
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@ -1,4 +1,7 @@
use std::env;
use std::io::Write;
use std::fs::File;
use std::path::Path;
#[cfg(feature = "dotnet")]
use csbindgen;
@ -6,9 +9,12 @@ fn main() {
println!("cargo:rerun-if-env-changed=FRIDA_CODE");
println!("cargo:rerun-if-env-changed=DLL_PROXY");
if let Ok(lib_path) = env::var("DLL_PROXY") {
println!("cargo:rerun-if-changed={}", &lib_path);
let Ok(lib_path) = env::var("DLL_PROXY") else {
return;
};
use goblin::Object;
println!("cargo:rerun-if-changed={}", &lib_path);
let path = std::path::Path::new(&lib_path);
let lib_filename = path.file_name().unwrap().to_str().unwrap();
@ -56,13 +62,24 @@ fn main() {
}
#[cfg(not(target_os = "windows"))]
{
let symbols_path = Path::new(env!("CARGO_MANIFEST_DIR")).join("src").join("symbols.rs");
let mut symbols = File::create(&symbols_path).unwrap();
println!("cargo:rerun-if-changed={:?}", symbols_path);
writeln!(symbols, "#[allow(dead_code)]").unwrap();
writeln!(symbols, "#[link(name = \"{}\")]", lib_name.replace("lib", "")).unwrap();
writeln!(symbols, "extern {{").unwrap();
for e in exports.iter() {
println!("cargo:warning=Exported function: {}", e);
// writeln!(symbols, "\t#[no_mangle]").unwrap();
writeln!(symbols, "\tpub fn {}();", e).unwrap();
}
writeln!(symbols, "}}").unwrap();
}
println!("cargo:warning=Expected library name: {}-orig.dll", lib_name);
println!("cargo:rustc-env=LIB_NAME={}-orig.dll", lib_name);
}
#[cfg(feature = "dotnet")]
{

2
src/lib.rs
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@ -3,6 +3,8 @@ pub mod injector;
pub mod frida_handler;
// #[cfg(feature = "dotnet")]
// pub mod cs;
#[cfg(not(windows))]
pub mod symbols;
pub use injector::attach_self;