Failed to Attach on usb device

[chihaamin]

use frida::{Frida, ScriptHandler, ScriptOption, ScriptRuntime, SpawnOptions};
use lazy_static::lazy_static;

lazy_static! {
static ref FRIDA: Frida = unsafe { Frida::obtain() };
}

fn main() {
let device_manager = frida::DeviceManager::obtain(&FRIDA);
let mut usb = device_manager
.get_device_by_type(frida::DeviceType::USB)
.unwrap();

let mut pid: u32 = 0;
// let mut so = SpawnOptions::new();
// let pid = usb.spawn("testApp", &mut so).unwrap(); -> cause inf loop
for proc in usb.enumerate_processes() {
    if proc.get_name() == String::from("testApp") {
        println!("{} {}", proc.get_name(), proc.get_pid());
        pid = proc.get_pid()
    }
}
let session = usb.attach(pid); -> doesn't attach
match session {
    Ok(_s) => {}
    Err(e) => println!("{}", e),
}

}

struct Handler;

impl Handler {
fn new() -> Self {
Self
}
}

impl ScriptHandler for Handler {
fn on_message(&mut self, message: &str) {
println!("{:?}", message);
}
}

// output
testApp 6873
Failed to attach

[s1341]

Not sure it matters, but is it an android or iOS device?

[chihaamin]

android

[s1341]

does regular frida-tools work on this computer/device?

[chihaamin]

Yes on windows everything works fine but when I use it for usb or using tcpip it doesn't work , when I spawn a process it get spawned in the android but the pid doesn't get returned and it get stuck in an infinite loop I tried to spawn the process then grab the pid of it :
for proc in usb.enumerate_processes() {
if proc.get_name() == String::from("testApp") {
println!("{} {}", proc.get_name(), proc.get_pid());
pid = proc.get_pid()
}
}
it doesn't attach to it

[s1341]

can you confirm that adb works on this computer/device combination?