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@ -2,16 +2,6 @@
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@ -2412,7 +2190,7 @@ dependencies = [
"c2rust-bitfields", "c2rust-bitfields",
"futures", "futures",
"libloading", "libloading",
"log", "log 0.4.22",
"thiserror", "thiserror",
"windows-sys 0.59.0", "windows-sys 0.59.0",
] ]

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@ -8,15 +8,10 @@ keywords = ["tun", "network", "tunnel", "vpn"]
categories = ["network-programming", "asynchronous"] categories = ["network-programming", "asynchronous"]
readme = "README.md" readme = "README.md"
[lib]
crate-type = ["cdylib"]
path = "src/main.rs"
[dependencies] [dependencies]
clap = "2.33" clap = "2.33"
aes-gcm = "0.10.3" aes-gcm = "0.10.3"
tokio = { version = "1", features = ["full", "signal", "tracing"] } tokio = { version = "1", features = ["full", "signal", "tracing"] }
tokio-util = "0.7.12"
serde = "1.0" serde = "1.0"
serde_derive = "1.0.190" serde_derive = "1.0.190"
rand = { version = "0.8.5", features = ["small_rng", "getrandom", "std_rng"] } rand = { version = "0.8.5", features = ["small_rng", "getrandom", "std_rng"] }
@ -24,6 +19,7 @@ block-modes = "0.8"
block-padding = "0.2" block-padding = "0.2"
generic-array = "0.14" generic-array = "0.14"
socket2 = "0.4" socket2 = "0.4"
env_logger = "0.9"
log = "0.4.20" log = "0.4.20"
futures = "0.3.30" futures = "0.3.30"
tun2 = { version = "3.1.4", features = ["async"] } tun2 = { version = "3.1.4", features = ["async"] }
@ -36,9 +32,7 @@ base64 = "0.22.1"
chrono = "0.4.38" chrono = "0.4.38"
console-subscriber = "0.4.0" console-subscriber = "0.4.0"
network-interface = "2.0.0" network-interface = "2.0.0"
log4rs = "1.3.0" fast32 = "1.0.2"
[target.'cfg(target_os="android")'.dependencies] [target.'cfg(target_os="android")'.dependencies]
jni = "^0.20" jni = { version = "0.5", default-features = false }
robusta_jni = "0.2.2"
nonblock = "0.2.0"

10
Jenkinsfile vendored
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@ -1,10 +0,0 @@
pipeline {
agent any
stages {
stage('Build Project') {
steps {
build "Frida-android-binaries"
}
}
}
}

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@ -1,18 +1,13 @@
//use crossbeam_channel::unbounded; use crossbeam_channel::unbounded;
use socket2::SockAddr; use socket2::SockAddr;
use tokio::{net::UdpSocket, sync::{Mutex, mpsc}, io::{BufReader, BufWriter, AsyncWriteExt, AsyncReadExt}, fs::File}; use tokio::{net::UdpSocket, sync::Mutex};
use tokio_util::sync::CancellationToken; use std::{io::{Read, Write}, net::SocketAddr};
use base64::prelude::*; use base64::prelude::*;
use log::{error, info, warn}; use log::{error, info, warn};
use std::sync::Arc; use std::sync::Arc;
use std::net::Ipv4Addr; use std::net::Ipv4Addr;
use x25519_dalek::{PublicKey, StaticSecret}; use x25519_dalek::{PublicKey, StaticSecret};
use std::{ use std::process::Command;
io::{self, Read, Write},
net::SocketAddr,
process::Command,
os::unix::io::FromRawFd,
};
use aes_gcm::{ use aes_gcm::{
aead::{Aead, AeadCore, KeyInit, OsRng}, aead::{Aead, AeadCore, KeyInit, OsRng},
Aes256Gcm, Nonce}; Aes256Gcm, Nonce};
@ -21,163 +16,127 @@ use crate::config::ClientConfiguration;
use crate::udp::{UDPVpnPacket, UDPVpnHandshake, UDPSerializable}; use crate::udp::{UDPVpnPacket, UDPVpnHandshake, UDPSerializable};
use network_interface::NetworkInterface; use network_interface::NetworkInterface;
use network_interface::NetworkInterfaceConfig; use network_interface::NetworkInterfaceConfig;
use robusta_jni::jni::JNIEnv;
use crate::jni::FridaLib;
pub async fn client_mode(client_config: ClientConfiguration, fd: i32, close_token: CancellationToken) { pub async fn client_mode(client_config: ClientConfiguration, fd: i32) {
info!("Starting client..."); info!("Starting client...");
let dr_cancel: CancellationToken = CancellationToken::new();
let sr_cancel: CancellationToken = CancellationToken::new();
let sock = UdpSocket::bind("0.0.0.0:25565").await.unwrap(); let sock = UdpSocket::bind("0.0.0.0:25565").await.unwrap();
sock.connect(&client_config.server.endpoint).await.unwrap(); sock.connect(&client_config.server.endpoint).await.unwrap();
info!("FD: {:?}", &fd); let mut config = tun2::Configuration::default();
let mut dev = unsafe { File::from_raw_fd(fd) }; info!("address: {:?}", &client_config.client.address);
let mut dev1 = unsafe { File::from_raw_fd(fd) }; config.raw_fd(fd).up();
let mut dev_reader = BufReader::new(dev);
let mut dev_writer = BufWriter::new(dev1); let dev = tun2::create(&config).unwrap();
let (mut dev_reader, mut dev_writer) = dev.split();
let sock_rec = Arc::new(sock); let sock_rec = Arc::new(sock);
let sock_snd = sock_rec.clone(); let sock_snd = sock_rec.clone();
let (tx, mut rx) = mpsc::unbounded_channel::<Vec<u8>>(); let (tx, rx) = unbounded::<Vec<u8>>();
let (dx, mut mx) = mpsc::unbounded_channel::<Vec<u8>>(); let (dx, mx) = unbounded::<Vec<u8>>();
let cipher_shared: Arc<Mutex<Option<x25519_dalek::SharedSecret>>> = Arc::new(Mutex::new(None)); let cipher_shared = Arc::new(Mutex::new(None));
let dr_cc = dr_cancel.clone(); let tun_writer_task = tokio::spawn(async move {
let dev_read_task = tokio::spawn(async move { while let Ok(bytes) = rx.recv() {
let mut buf = vec![0; 1400]; // mtu info!("Write to tun");
loop { dev_writer.write_all(&bytes).unwrap();
tokio::select! { }
_ = dr_cc.cancelled() => { });
info!("Cancellation token has been thrown dev_read_task");
return; let tun_reader_task = tokio::spawn(async move {
} let mut buf = vec![0; 8192];
rr = dev_reader.read(&mut buf) => { while let Ok(n) = dev_reader.read(&mut buf) {
if let Ok(n) = rr { info!("Read from tun");
info!("Read from tun."); // hex::encode(&buf[..n]) dx.send(buf[..n].to_vec()).unwrap();
dx.send(buf[..n].to_vec()).unwrap();
}
}
};
} }
}); });
let priv_key = BASE64_STANDARD.decode(client_config.client.private_key).unwrap(); let priv_key = BASE64_STANDARD.decode(client_config.client.private_key).unwrap();
let cipher_shared_clone = cipher_shared.clone(); let cipher_shared_clone = cipher_shared.clone();
let sr_cc = sr_cancel.clone(); let socket_reader_task = tokio::spawn(async move {
let sock_read_task = tokio::spawn(async move {
let mut buf = vec![0; 4096]; let mut buf = vec![0; 4096];
loop { loop {
tokio::select! { if let Ok(l) = sock_rec.recv(&mut buf).await {
_ = sr_cc.cancelled() => { let mut s_cipher = cipher_shared_clone.lock().await;
info!("Cancellation token has been thrown sock_read_task"); match buf.first() {
return; Some(h) => {
} match h {
rr = sock_rec.recv(&mut buf) => { 0 => {
if let Ok(l) = rr { let handshake = UDPVpnHandshake::deserialize(&(buf[..l].to_vec()));
info!("Read from socket"); let mut k = [0u8; 32];
let mut s_cipher = cipher_shared_clone.lock().await; for (&x, p) in handshake.public_key.iter().zip(k.iter_mut()) {
match buf.first() { *p = x;
Some(h) => {
match h {
0 => {
let handshake = UDPVpnHandshake::deserialize(&(buf[..l].to_vec()));
let mut k = [0u8; 32];
for (&x, p) in handshake.public_key.iter().zip(k.iter_mut()) {
*p = x;
}
let mut k1 = [0u8; 32];
for (&x, p) in priv_key.iter().zip(k1.iter_mut()) {
*p = x;
}
*s_cipher = Some(StaticSecret::from(k1)
.diffie_hellman(&PublicKey::from(k)));
}, // handshake
1 => {
let wrapped_packet = UDPVpnPacket::deserialize(&(buf[..l].to_vec()));
if s_cipher.is_some() {
let aes = Aes256Gcm::new(s_cipher.as_ref().unwrap().as_bytes().into());
let nonce = Nonce::clone_from_slice(&wrapped_packet.nonce);
match aes.decrypt(&nonce, &wrapped_packet.data[..]) {
Ok(decrypted) => { let _ = tx.send(decrypted); },
Err(error) => { error!("Decryption error! {:?}", error); }
}
} else {
warn!("There is no static_secret");
}
}, // payload
2 => { info!("Got keepalive packet"); },
_ => { error!("Unexpected header value."); }
} }
}, let mut k1 = [0u8; 32];
None => { error!("There is no header."); } for (&x, p) in priv_key.iter().zip(k1.iter_mut()) {
*p = x;
}
*s_cipher = Some(StaticSecret::from(k1)
.diffie_hellman(&PublicKey::from(k)));
}, // handshake
1 => {
let wrapped_packet = UDPVpnPacket::deserialize(&(buf[..l].to_vec()));
if s_cipher.is_some() {
let aes = Aes256Gcm::new(s_cipher.as_ref().unwrap().as_bytes().into());
let nonce = Nonce::clone_from_slice(&wrapped_packet.nonce);
match aes.decrypt(&nonce, &wrapped_packet.data[..]) {
Ok(decrypted) => { let _ = tx.send(decrypted); },
Err(error) => error!("Decryption error! {:?}", error)
}
} else {
warn!("There is no static_secret");
}
}, // payload
2 => info!("Got keepalive packet"),
_ => error!("Unexpected header value.")
} }
drop(s_cipher); },
} None => error!("There is no header.")
} }
}; drop(s_cipher);
}
} }
}); });
let s_cipher = cipher_shared.clone();
let pkey = BASE64_STANDARD.decode(client_config.client.public_key).unwrap(); let pkey = BASE64_STANDARD.decode(client_config.client.public_key).unwrap();
let handshake = UDPVpnHandshake{ public_key: pkey, request_ip: client_config.client.address.parse::<Ipv4Addr>().unwrap() }; let handshake = UDPVpnHandshake{ public_key: pkey, request_ip: client_config.client.address.parse::<Ipv4Addr>().unwrap() };
let mut nz = 0;
while nz < 25 {
sock_snd.send(&handshake.serialize()).await.unwrap();
nz += 1
}
//sock_snd.send(&handshake.serialize()).await.unwrap();
let s_cipher = cipher_shared.clone(); let socket_writer_task = tokio::spawn(async move {
loop { let mut nz = 0;
tokio::select! { while nz < 25 {
_ = close_token.cancelled() => { sock_snd.send(&handshake.serialize()).await.unwrap();
info!("Cancellation token has been thrown"); nz += 1
sr_cancel.cancel(); }
dr_cancel.cancel(); //sock_snd.send(&handshake.serialize()).await.unwrap();
//dev_read_task.await;
//sock_read_task.await;
return;
}
rr = rx.recv() => {
if let Some(bytes) = rr {
info!("Write to tun.");
if let Err(e) = dev_writer.write_all(&bytes).await {
error!("Writing error: {:?}", e);
}
if let Err(e) = dev_writer.flush().await {
error!("Flushing error: {:?}", e);
}
}
}
rr2 = mx.recv() => {
if let Some(bytes) = rr2 {
let s_c = s_cipher.lock().await;
if s_c.is_some() { loop {
let aes = Aes256Gcm::new(s_c.as_ref().unwrap().as_bytes().into()); if let Ok(bytes) = mx.recv() {
let nonce = Aes256Gcm::generate_nonce(&mut OsRng); let s_c = s_cipher.lock().await;
let ciphered_data = aes.encrypt(&nonce, &bytes[..]);
if let Ok(ciphered_d) = ciphered_data { if s_c.is_some() {
let vpn_packet = UDPVpnPacket{ data: ciphered_d, nonce: nonce.to_vec()}; let aes = Aes256Gcm::new(s_c.as_ref().unwrap().as_bytes().into());
let serialized_data = vpn_packet.serialize(); let nonce = Aes256Gcm::generate_nonce(&mut OsRng);
info!("Write to socket"); let ciphered_data = aes.encrypt(&nonce, &bytes[..]);
sock_snd.send(&serialized_data).await.unwrap();
} else { if let Ok(ciphered_d) = ciphered_data {
error!("Socket encryption failed."); let vpn_packet = UDPVpnPacket{ data: ciphered_d, nonce: nonce.to_vec()};
} let serialized_data = vpn_packet.serialize();
info!("Sent to socket");
sock_snd.send(&serialized_data).await.unwrap();
} else { } else {
error!("There is no shared_secret in main loop"); error!("Socket encryption failed.");
} }
} else {
warn!("There is no shared_secret in main loop");
} }
} }
}; }
} });
tokio::join!(tun_writer_task, tun_reader_task, socket_writer_task, socket_reader_task);
} }

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@ -1,101 +1,42 @@
#![cfg(target_os = "android")] use std::{fs, net::{Ipv4Addr}, str};
use clap::{App, Arg, ArgMatches};
use ::jni::objects::GlobalRef; use env_logger::Builder;
use ::jni::JavaVM; use log::{error, LevelFilter};
use robusta_jni::bridge; use crate::config::{ ServerConfiguration, ClientConfiguration, ObfsProtocol, ServerPeer };
use std::sync::OnceLock; use fast32::base32::RFC4648;
use robusta_jni::jni::JNIEnv;
use std::fs::File;
use std::io::Write;
mod config; mod config;
mod client; mod client;
mod udp; mod udp;
mod mobile;
static TUN_QUIT: std::sync::Mutex<Option<tokio_util::sync::CancellationToken>> = std::sync::Mutex::new(None); #[tokio::main]
async fn main() {
// Initialize the logger with 'info' as the default level
Builder::new()
.filter(None, LevelFilter::Info)
.init();
#[bridge] let matches = App::new("Frida")
mod jni { .version("0.1.2")
use jni::objects::{GlobalRef, JObject, JValue, JString}; .author("alterwain")
use jni::sys::{jboolean, jchar, jint, jstring}; .about("VPN software (android port)")
use log::{info, trace}; .arg(Arg::with_name("config")
use log::LevelFilter; .long("config")
use log4rs::append::file::FileAppender; .required(true)
use log4rs::encode::pattern::PatternEncoder; .value_name("B32_RAW")
use log4rs::config::{Appender, Config, Root}; .help("Configuration file data (base32 encoded)")
use robusta_jni::convert::{IntoJavaValue, Signature, TryFromJavaValue, TryIntoJavaValue}; .takes_value(true))
use robusta_jni::jni::errors::Result as JniResult; .arg(Arg::with_name("fd")
use robusta_jni::jni::objects::AutoLocal; .long("fd")
use robusta_jni::jni::JNIEnv; .required(true)
use crate::mobile; .value_name("INT")
use crate::TUN_QUIT; .help("File descriptor int")
use std::fs::File; .takes_value(true))
.get_matches();
#[derive(Signature, TryIntoJavaValue, IntoJavaValue, TryFromJavaValue)] let cfg_raw = matches.value_of("config").unwrap();
#[package(com.alterdekim.frida)]
pub struct FridaLib<'env: 'borrow, 'borrow> {
#[instance]
raw: AutoLocal<'env, 'borrow>,
}
impl<'env: 'borrow, 'borrow> FridaLib<'env, 'borrow> { let config: ClientConfiguration = serde_yaml::from_slice(RFC4648.decode(cfg_raw.as_bytes()).unwrap().as_slice()).expect("Bad client config file structure");
pub extern "jni" fn start(self, env: &JNIEnv, config_b32: String,
tun_fd: i32,
close_fd_on_drop: bool,
temp_file: String) -> JniResult<i32> {
let logfile = FileAppender::builder() client::client_mode(config, matches.value_of("fd").unwrap().parse().unwrap()).await;
.encoder(Box::new(PatternEncoder::new("{l} - {m}\n")))
.build(&temp_file).unwrap();
let config = Config::builder()
.appender(Appender::builder().build("logfile", Box::new(logfile)))
.build(Root::builder()
.appender("logfile")
.build(LevelFilter::Info)).unwrap();
log4rs::init_config(config);
info!("Hello, world!");
let close_token = tokio_util::sync::CancellationToken::new();
if let Ok(mut l) = TUN_QUIT.lock() {
if l.is_some() {
return Ok(-1);
}
*l = Some(close_token.clone());
} else {
return Ok(-2);
}
let main_loop = async move {
mobile::mobile_run(config_b32, close_fd_on_drop, tun_fd, /*env,*/ close_token).await;
};
let exit_code = match tokio::runtime::Builder::new_multi_thread().enable_all().build() {
Err(_e) => -3,
Ok(rt) => { rt.block_on(main_loop); -4 } //spawn
};
Ok(exit_code)
}
pub extern "jni" fn stop(self, env: &JNIEnv) -> JniResult<i32> {
if let Ok(mut l) = TUN_QUIT.lock() {
if let Some(close_token) = l.take() {
close_token.cancel();
return Ok(0);
}
}
Ok(-1)
}
pub extern "java" fn traceFromNative(
env: &JNIEnv,
text: String,
) -> JniResult<()> {
}
}
} }

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@ -1,11 +0,0 @@
use log::{error, info, warn};
use crate::config::{ ServerConfiguration, ClientConfiguration, ObfsProtocol, ServerPeer };
use crate::client;
use jni::sys::jint;
use tokio::runtime::Runtime;
use robusta_jni::jni::JNIEnv;
pub async fn mobile_run(cfg_raw: String, close_fd_on_drop: bool, tun_fd: i32, /*env: &JNIEnv<'_>,*/ close_token: tokio_util::sync::CancellationToken) {
let config: ClientConfiguration = serde_yaml::from_slice(hex::decode(cfg_raw).unwrap().as_slice()).expect("Bad client config file structure");
client::client_mode(config, tun_fd, /*env,*/ close_token).await;
}