Add integration test for lib injection

Cargo.lock

@@ -217,8 +217,9 @@ dependencies = [
 
 [[package]]
 name = "frida"
-version = "0.4.0"
-source = "git+https://github.com/frida/frida-rust#6be323811b87d204595ded8e4f18e090a954ca81"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f986d678a4b186594a29130c6fce7db3bce32a7506041e4e1fa1a8b4695fb956"
 dependencies = [
  "frida-sys",
  "thiserror",
@@ -227,7 +228,8 @@ dependencies = [
 [[package]]
 name = "frida-build"
 version = "0.2.1"
-source = "git+https://github.com/frida/frida-rust#6be323811b87d204595ded8e4f18e090a954ca81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2b1525c98a66f38f333d17e56c24562425263a9e07a53e5f59d0857bc360257"
 dependencies = [
  "reqwest",
  "tar",
@@ -253,8 +255,9 @@ dependencies = [
 
 [[package]]
 name = "frida-sys"
-version = "0.4.0"
-source = "git+https://github.com/frida/frida-rust#6be323811b87d204595ded8e4f18e090a954ca81"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "31cefdb1bb978815a5c1a9d94b0aa691bdaf22779ae5478849b7af13107f496c"
 dependencies = [
  "bindgen",
  "frida-build",

Cargo.toml

@@ -18,8 +18,7 @@ managed_lib = ["dep:windows-sys"]
 frida = ["dep:frida", "dep:lazy_static", "dep:serde", "dep:serde_json"]
 
 [dependencies]
-# frida = { version = "0.4.0", features = ["auto-download"] }
-frida = { git = "https://github.com/frida/frida-rust", features = ["auto-download"], optional = true }
+frida = { version = "0.4.1", features = ["auto-download"], optional = true }
 lazy_static = { version = "1.4.0", optional = true }
 serde = { version = "1.0", features = ["derive"], optional = true }
 serde_json = { version = "1.0", optional = true }
@@ -39,3 +38,4 @@ cc = "1.0.67"
 [dev-dependencies]
 pretty_assertions = "1.1.0"
 mylib = { path = "tests/mylib" }
+# escargot = "0.5.7"

build.rs

@@ -35,15 +35,4 @@ fn main() {
 		println!("cargo:warning=Expected library name: {}-orig.dll", lib_name);
 		println!("cargo:rustc-env=LIB_NAME={}-orig.dll", lib_name);
 	}
-
-	// if env::var("PROFILE").unwrap() == "test" {
-		// cc::Build::new()
-		// 	.shared_flag(true)
-		// 	.static_flag(false)
-		// 	.cargo_metadata(false)
-		// 	.file("tests/mylib.c")
-		// 	.compile("mylib");
-		// println!("cargo:rustc-link-search=native={}/tests", env::var("OUT_DIR").unwrap());
-		// println!("cargo:rustc-link-lib=dylib=mylib");
-	// }
 }

src/injector.rs

@@ -16,7 +16,10 @@ pub extern "C" fn attach(pid: u32) {
 	#[cfg(feature = "frida")]
 	{
 		let frida_code = env!("FRIDA_CODE").to_string();
+		#[cfg(windows)]
 		std::thread::spawn(move || frida_attach_pid(frida_code, pid));
+		#[cfg(not(windows))]
+		frida_attach_pid(frida_code, pid);
 	}
 }
 

src/lib.rs

@@ -16,12 +16,12 @@ fn _start() {
 
 // For some reason ctor doesn't work on Windows - it hangs the process
 // during DeviceManager::obtain. DllMain works fine though.
-#[cfg(windows)]
+#[cfg(all(windows, not(test)))]
 use std::ffi::c_void;
-#[cfg(windows)]
+#[cfg(all(windows, not(test)))]
 use winapi::um::winnt::DLL_PROCESS_ATTACH;
 
-#[cfg(all(windows, feature = "dll_proxy"))]
+#[cfg(all(windows, feature = "dll_proxy", not(test)))]
 use winapi::um::libloaderapi::LoadLibraryA;
 
 #[cfg(all(windows, not(test)))]
@@ -46,3 +46,58 @@ extern "system" fn DllMain(dll_module: *mut c_void, call_reason: u32, _: *mut ()
 
 	true
 }
+
+#[cfg(test)]
+mod tests {
+	use pretty_assertions::assert_eq;
+	use std::process::Command;
+	use std::fs;
+
+	#[test]
+	#[cfg(feature = "frida")]
+	fn test_frida_on_load() {
+		let lib_status = Command::new("cargo")
+			.arg("build")
+			.arg("--lib")
+			.arg("--target-dir")
+			.arg("target/test_frida_on_load")
+			.env("FRIDA_CODE", r#"
+				const foo = Module.getExportByName(null, "mylib_foo");
+				Interceptor.replace(foo, new NativeCallback(function () {
+					console.log("replaced foo() called");
+					return 40;
+				}, "uint8", []));
+			"#)
+			.status()
+			.expect("Failed to build dynamic library");
+
+		assert!(lib_status.success(), "Failed to build dynamic library");
+
+		let bin_status = Command::new("cargo")
+			.arg("run")
+			.arg("--manifest-path")
+			.arg("tests/mybin/Cargo.toml")
+			.arg("--target-dir")
+			.arg("target/test_frida_on_load")
+			.env("RUSTFLAGS", "-C link-arg=-Wl,--no-as-needed -C link-arg=-lfrida_deepfreeze_rs")
+			.status()
+			.expect("Failed to build mybin");
+
+		assert_eq!(bin_status.code().unwrap(), 40, "Failed to replace foo()");
+		// assert_eq!(40, unsafe { mylib_foo() });
+
+// 		escargot::CargoBuild::new()
+// 			.current_release()
+// 			.current_target()
+// 			.env("FRIDA_CODE", r#"
+// 				const foo = Module.getExportByName(null, "mylib_foo");
+// 				Interceptor.replace(foo, new NativeCallback(function () {
+// 					console.log("replaced foo() called");
+// 					return 20;
+// 				}, "uint8", []));
+// 			"#)
+// 			.manifest_path("../../Cargo.toml")
+// 			.run()
+// 			.unwrap();
+	}
+}

tests/mybin/Cargo.lock

@@ -0,0 +1,14 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "mybin"
+version = "0.1.0"
+dependencies = [
+ "mylib",
+]
+
+[[package]]
+name = "mylib"
+version = "0.1.0"

tests/mybin/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "mybin"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+mylib = { path = "../mylib" }

tests/mybin/src/main.rs

@@ -0,0 +1,12 @@
+#[link(name = "mylib", kind = "dylib")]
+extern {
+	fn mylib_foo() -> u8;
+	fn mylib_bar() -> u8;
+}
+
+fn main() {
+	println!("Hello, world!");
+
+	assert_eq!(unsafe { mylib_bar() }, 100);
+	std::process::exit(unsafe { mylib_foo() } as i32);
+}

tests/mylib/src/lib.rs

@@ -2,3 +2,8 @@
 pub extern "C" fn mylib_foo() -> u8 {
 	10
 }
+
+#[no_mangle]
+pub extern "C" fn mylib_bar() -> u8 {
+	100
+}