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Rebuilding the whole world!

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modified:   Cargo.toml
	new file:   LICENSE.md
	renamed:    Cargo.lock -> frida_core/Cargo.lock
	new file:   frida_core/Cargo.toml
	renamed:    build.rs -> frida_core/build.rs
	renamed:    icons/off.ico -> frida_core/icons/off.ico
	renamed:    icons/on.ico -> frida_core/icons/on.ico
	renamed:    src/android.rs -> frida_core/src/android.rs
	renamed:    src/client.rs -> frida_core/src/client.rs
	renamed:    src/config/mod.rs -> frida_core/src/config/mod.rs
	renamed:    src/gui/mod.rs -> frida_core/src/gui/mod.rs
	renamed:    src/gui/tab/mod.rs -> frida_core/src/gui/tab/mod.rs
	renamed:    src/gui/tab_button.rs -> frida_core/src/gui/tab_button.rs
	renamed:    src/gui/tab_panel.rs -> frida_core/src/gui/tab_panel.rs
	renamed:    src/main.rs -> frida_core/src/main.rs
	renamed:    src/obfs.rs -> frida_core/src/obfs.rs
	renamed:    src/server.rs -> frida_core/src/server.rs
	renamed:    src/udp.rs -> frida_core/src/udp.rs
	renamed:    tray.rc -> frida_core/tray.rc
This commit is contained in:
Michael Wain 2024-12-08 01:44:13 +03:00
parent a6209753cd
commit 52b7373fe3
19 changed files with 1529 additions and 858 deletions
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Cargo.toml
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[workspace]
members = ["frida_core","frida_client","frida_server","frida_cli","frida_gui","frida_lib"]
[package]
name = "frida_vpn"
version = "0.1.7"
version = "0.2.0"
edition = "2021"
license = "Apache-2.0"
authors = ["alterdekim"]
license-file = "LICENSE.md"
authors = ["alterwain"]
keywords = ["tun", "network", "tunnel", "vpn"]
categories = ["network-programming", "asynchronous"]
readme = "README.md"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[lib]
crate-type = ["cdylib"]
path = "src/android.rs"
[[bin]]
name = "frida-cli"
path = "src/main.rs"
[[bin]]
name = "frida-gui"
path = "src/gui/mod.rs"
[dependencies]
clap = "2.33"
aes-gcm = "0.10.3"
tokio = { version = "1", features = ["full", "signal", "tracing"] }
tokio-util = "0.7.12"
serde = "1.0"
serde_derive = "1.0.190"
rand = { version = "0.8.5", features = ["small_rng", "getrandom", "std_rng"] }
block-modes = "0.8"
block-padding = "0.2"
generic-array = "0.14"
env_logger = "0.9"
log = "0.4.20"
futures = "0.3.30"
packet = "0.1.4"
async-channel = "2.3.1"
hex = "0.4"
serde_yaml = "0.9.34"
x25519-dalek = { version = "2.0.1", features = ["getrandom", "static_secrets"] }
base64 = "0.22.1"
chrono = "0.4.38"
console-subscriber = "0.4.0"
network-interface = "2.0.0"
tun = { version = "0.7.5", features = ["async"] }
[target.'cfg(target_os="windows")'.dependencies]
iced = { version = "0.13.1", features = ["tokio"] }
dirs = "5.0.1"
tray-item = "0.10.0"
[target.'cfg(target_os="windows")'.build-dependencies]
embed-resource = "2.3"
[target.'cfg(target_os="android")'.dependencies]
jni = "^0.20"
robusta_jni = "0.2.2"
nonblock = "0.2.0"
log4rs = "1.3.0"
readme = "README.md"

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LICENSE.md Normal file
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public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<https://www.gnu.org/licenses/>.

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frida_core/Cargo.toml Normal file
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[package]
name = "frida_core"
version.workspace = true
edition.workspace = true
license-file.workspace = true
authors.workspace = true
keywords.workspace = true
categories.workspace = true
readme.workspace = true
[lib]
crate-type = ["cdylib"]
path = "src/android.rs"
[[bin]]
name = "frida-cli"
path = "src/main.rs"
[[bin]]
name = "frida-gui"
path = "src/gui/mod.rs"
[dependencies]
clap = "2.33"
aes-gcm = "0.10.3"
tokio = { version = "1", features = ["full", "signal", "tracing"] }
tokio-util = "0.7.12"
serde = "1.0"
serde_derive = "1.0.190"
rand = { version = "0.8.5", features = ["small_rng", "getrandom", "std_rng"] }
block-modes = "0.8"
block-padding = "0.2"
generic-array = "0.14"
env_logger = "0.9"
log = "0.4.20"
futures = "0.3.30"
packet = "0.1.4"
async-channel = "2.3.1"
hex = "0.4"
serde_yaml = "0.9.34"
x25519-dalek = { version = "2.0.1", features = ["getrandom", "static_secrets"] }
base64 = "0.22.1"
chrono = "0.4.38"
console-subscriber = "0.4.0"
network-interface = "2.0.0"
tun = { version = "0.7.5", features = ["async"] }
[target.'cfg(target_os="windows")'.dependencies]
iced = { version = "0.13.1", features = ["tokio"] }
dirs = "5.0.1"
tray-item = "0.10.0"
[target.'cfg(target_os="windows")'.build-dependencies]
embed-resource = "2.3"
[target.'cfg(target_os="android")'.dependencies]
jni = "^0.20"
robusta_jni = "0.2.2"
nonblock = "0.2.0"
log4rs = "1.3.0"

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@ -1,382 +1,382 @@
pub mod general {
use crate::config::ClientConfiguration;
use async_channel::{Receiver, Sender};
use futures::{stream::{SplitSink, SplitStream}, SinkExt, StreamExt};
use tokio_util::{codec::Framed, sync::CancellationToken};
use tokio::{net::UdpSocket, sync::{Mutex, mpsc}, io::{AsyncWriteExt, AsyncReadExt}, fs::File};
use log::{error, info, warn};
use aes_gcm::{
aead::{Aead, AeadCore, KeyInit, OsRng},
Aes256Gcm, Nonce};
use base64::prelude::*;
use std::{io::{Read, Write}, sync::Arc};
use std::net::Ipv4Addr;
use x25519_dalek::{PublicKey, StaticSecret};
use crate::udp::{UDPVpnPacket, UDPVpnHandshake, UDPSerializable};
use tun::{ AsyncDevice, DeviceReader, DeviceWriter, TunPacketCodec };
pub trait ReadWrapper {
async fn read(&mut self, buf: &mut Vec<u8>) -> Result<usize, ()>;
}
pub struct DevReader {
pub dr: SplitStream<Framed<AsyncDevice, TunPacketCodec>>
}
// TODO: implement custom Error
impl ReadWrapper for DevReader {
async fn read(&mut self, buf: &mut Vec<u8>) -> Result<usize, ()> {
if let Some(Ok(tb)) = self.dr.next().await {
*buf = tb;
return Ok(buf.len());
}
Err(())
}
}
pub struct FdReader {
pub br: File
}
impl ReadWrapper for FdReader {
async fn read(&mut self, buf: &mut Vec<u8>) -> Result<usize, ()> {
let r = self.br.read(buf).await;
if let Ok(a) = r {
return Ok(a);
}
Err(())
}
}
pub trait WriteWrapper {
async fn write(&mut self, msg: WriterMessage) -> Result<usize, String>;
}
pub enum WriterMessage {
Plain(Vec<u8>),
Gateway(Ipv4Addr)
}
pub struct DevWriter {
pub dr: SplitSink<Framed<AsyncDevice, TunPacketCodec>, Vec<u8>>
}
// TODO: implement custom Error
impl WriteWrapper for DevWriter {
async fn write(&mut self, msg: WriterMessage) -> Result<usize, String> {
match msg {
WriterMessage::Plain(buf) => {
let l = buf.len();
return match self.dr.send(buf).await {
Ok(()) => Ok(l),
Err(e) => Err(e.to_string())
};
},
// this thing should be abolished later
WriterMessage::Gateway(_addr) => {
Ok(0)
}
}
}
}
pub struct FdWriter {
pub br: File
}
impl WriteWrapper for FdWriter {
async fn write(&mut self, msg: WriterMessage) -> Result<usize, String> {
match msg {
WriterMessage::Plain(buf) => {
if let Ok(a) = self.br.write(&buf).await {
return Ok(a);
}
Err(String::new())
},
WriterMessage::Gateway(_addr) => {Ok(0)}
}
}
}
pub trait VpnClient {
async fn start(&self);
}
pub struct CoreVpnClient<T, R> where T: ReadWrapper, R: WriteWrapper {
pub client_config: ClientConfiguration,
pub dev_reader: T,
pub dev_writer: R,
pub close_token: CancellationToken
}
impl<T: ReadWrapper + std::marker::Sync, R: WriteWrapper + std::marker::Sync> CoreVpnClient<T, R> {
pub async fn start(&mut self, sock: UdpSocket) {
info!("Starting client...");
let dr_cancel: CancellationToken = CancellationToken::new();
let sr_cancel: CancellationToken = CancellationToken::new();
let sock_rec = Arc::new(sock);
let sock_snd = sock_rec.clone();
let (tx, mut rx) = mpsc::unbounded_channel::<Vec<u8>>();
let (dx, mut mx) = mpsc::unbounded_channel::<Vec<u8>>();
let cipher_shared: Arc<Mutex<Option<x25519_dalek::SharedSecret>>> = Arc::new(Mutex::new(None));
let priv_key = BASE64_STANDARD.decode(&self.client_config.client.private_key).unwrap();
let cipher_shared_clone = cipher_shared.clone();
let pkey = BASE64_STANDARD.decode(&self.client_config.client.public_key).unwrap();
let handshake = UDPVpnHandshake{ public_key: pkey, request_ip: self.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 _ = self.dev_writer.write(WriterMessage::Plain(handshake.serialize())).await;
let mut buf = vec![0; 1400]; // mtu
let mut buf1 = vec![0; 4096]; // should be changed to less bytes
loop {
tokio::select! {
_ = self.close_token.cancelled() => {
info!("Cancellation token has been thrown");
sr_cancel.cancel();
dr_cancel.cancel();
return;
}
rr = rx.recv() => {
if let Some(bytes) = rr {
info!("Write to tun. len={:?}", bytes.len());
if let Err(e) = self.dev_writer.write(WriterMessage::Plain(bytes)).await {
error!("Writing error: {:?}", e);
}
/* if let Err(e) = self.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() {
let aes = Aes256Gcm::new(s_c.as_ref().unwrap().as_bytes().into());
let nonce = Aes256Gcm::generate_nonce(&mut OsRng);
let ciphered_data = aes.encrypt(&nonce, &bytes[..]);
if let Ok(ciphered_d) = ciphered_data {
let vpn_packet = UDPVpnPacket{ data: ciphered_d, nonce: nonce.to_vec()};
let serialized_data = vpn_packet.serialize();
info!("Write to socket");
sock_snd.send(&serialized_data).await.unwrap();
} else {
error!("Socket encryption failed.");
}
} else {
error!("There is no shared_secret in main loop");
}
}
}
rr = self.dev_reader.read(&mut buf) => {
if let Ok(n) = rr {
info!("Read from tun."); // hex::encode(&buf[..n])
dx.send(buf[..n].to_vec()).unwrap();
}
}
rr = sock_rec.recv(&mut buf1) => {
if let Ok(l) = rr {
info!("Read from socket");
let mut s_cipher = cipher_shared_clone.lock().await;
match buf1.first() {
Some(h) => {
match h {
0 => {
let handshake = UDPVpnHandshake::deserialize(&(buf1[..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(&(buf1[..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."); }
}
},
None => { error!("There is no header."); }
}
drop(s_cipher);
}
}
};
}
}
}
}
pub mod android {
#![cfg(target_os = "android")]
use crate::client::general::{VpnClient, CoreVpnClient, FdReader, FdWriter};
use crate::config::ClientConfiguration;
use tokio_util::sync::CancellationToken;
use std::os::fd::FromRawFd;
use tokio::{net::UdpSocket, sync::{Mutex, mpsc}, io::{BufReader, BufWriter, AsyncWriteExt, AsyncReadExt}, fs::File};
use log::{error, info, warn};
pub struct AndroidClient {
pub client_config: ClientConfiguration,
pub fd: i32,
pub close_token: CancellationToken
}
impl VpnClient for AndroidClient {
async fn start(&self) {
info!("FD: {:?}", &self.fd);
let mut dev = unsafe { File::from_raw_fd(self.fd) };
let mut dev1 = unsafe { File::from_raw_fd(self.fd) };
let mut client = CoreVpnClient{client_config: self.client_config.clone(), dev_reader: FdReader{br: dev}, dev_writer: FdWriter{br: dev1}, close_token: self.close_token.clone()};
info!("SSS: {:?}", &self.client_config.server.endpoint);
let sock = UdpSocket::bind("0.0.0.0:0").await.unwrap();
sock.connect(&self.client_config.server.endpoint).await.unwrap();
client.start(sock).await;
}
}
}
pub mod desktop {
use crate::client::general::{CoreVpnClient, DevReader, DevWriter, VpnClient};
use crate::config::ClientConfiguration;
use futures::{SinkExt, StreamExt};
use log::info;
use tokio::net::UdpSocket;
use tokio::sync::Mutex;
#[cfg(target_os = "linux")]
use network_interface::{NetworkInterface, NetworkInterfaceConfig};
use tun::{ Configuration, create_as_async };
#[cfg(target_os = "linux")]
fn configure_routes(endpoint_ip: &str, s_interface: Option<String>) {
let interfaces = NetworkInterface::show().unwrap();
let net_inter = interfaces.iter()
.filter(|i| !i.addr.iter().any(|b| b.ip().to_string() == "127.0.0.1" || b.ip().to_string() == "::1") )
.min_by(|x, y| x.index.cmp(&y.index))
.unwrap();
let inter_name = if s_interface.is_some() { s_interface.unwrap() } else { net_inter.name.clone() };
info!("Main network interface: {:?}", inter_name);
/*let mut ip_output = std::process::Command::new("sudo")
.arg("ip")
.arg("route")
.arg("del")
.arg("default")
.output()
.expect("Failed to delete default gateway.");
if !ip_output.status.success() {
error!("Failed to delete default gateway: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}*/
let mut ip_output = std::process::Command::new("sudo")
.arg("ip")
.arg("-4")
.arg("route")
.arg("add")
.arg("0.0.0.0/0")
.arg("dev")
.arg("tun0")
.output()
.expect("Failed to execute ip route command.");
if !ip_output.status.success() {
log::error!("Failed to route all traffic: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}
// TODO: replace 192.168.0.1 with relative variable
ip_output = std::process::Command::new("sudo")
.arg("ip")
.arg("route")
.arg("add")
.arg(endpoint_ip.to_owned()+"/32")
.arg("via")
.arg("192.168.0.1")
.arg("dev")
.arg(inter_name)
.output()
.expect("Failed to make exception for vpns endpoint.");
if !ip_output.status.success() {
log::error!("Failed to forward packets: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}
}
pub struct DesktopClient {
pub client_config: ClientConfiguration,
pub s_interface: Option<String>
}
impl VpnClient for DesktopClient {
async fn start(&self) {
info!("s_interface: {:?}", &self.s_interface);
info!("client_address: {:?}", &self.client_config.client.address);
let mut config = Configuration::default();
config.address(&self.client_config.client.address)
.netmask("255.255.255.255")
.destination("10.66.66.1")
.mtu(1400)
.tun_name("tun0")
.up();
info!("SSS: {:?}", &self.client_config.server.endpoint);
let sock = UdpSocket::bind(("0.0.0.0", 0)).await.unwrap();
sock.connect(&self.client_config.server.endpoint).await.unwrap();
let dev = create_as_async(&config).unwrap();
let (mut dev_writer , mut dev_reader) = dev.into_framed().split();
let mut client = CoreVpnClient{ client_config: self.client_config.clone(), dev_reader: DevReader{ dr: dev_reader }, dev_writer: DevWriter{dr: dev_writer }, close_token: tokio_util::sync::CancellationToken::new()};
info!("Platform specific code");
/* #[cfg(target_os = "linux")]
{
let s_a: std::net::SocketAddr = self.client_config.server.endpoint.parse().unwrap();
configure_routes(&s_a.ip().to_string(), self.s_interface.clone());
}*/
client.start(sock).await;
}
}
pub mod general {
use crate::config::ClientConfiguration;
use async_channel::{Receiver, Sender};
use futures::{stream::{SplitSink, SplitStream}, SinkExt, StreamExt};
use tokio_util::{codec::Framed, sync::CancellationToken};
use tokio::{net::UdpSocket, sync::{Mutex, mpsc}, io::{AsyncWriteExt, AsyncReadExt}, fs::File};
use log::{error, info, warn};
use aes_gcm::{
aead::{Aead, AeadCore, KeyInit, OsRng},
Aes256Gcm, Nonce};
use base64::prelude::*;
use std::{io::{Read, Write}, sync::Arc};
use std::net::Ipv4Addr;
use x25519_dalek::{PublicKey, StaticSecret};
use crate::udp::{UDPVpnPacket, UDPVpnHandshake, UDPSerializable};
use tun::{ AsyncDevice, DeviceReader, DeviceWriter, TunPacketCodec };
pub trait ReadWrapper {
async fn read(&mut self, buf: &mut Vec<u8>) -> Result<usize, ()>;
}
pub struct DevReader {
pub dr: SplitStream<Framed<AsyncDevice, TunPacketCodec>>
}
// TODO: implement custom Error
impl ReadWrapper for DevReader {
async fn read(&mut self, buf: &mut Vec<u8>) -> Result<usize, ()> {
if let Some(Ok(tb)) = self.dr.next().await {
*buf = tb;
return Ok(buf.len());
}
Err(())
}
}
pub struct FdReader {
pub br: File
}
impl ReadWrapper for FdReader {
async fn read(&mut self, buf: &mut Vec<u8>) -> Result<usize, ()> {
let r = self.br.read(buf).await;
if let Ok(a) = r {
return Ok(a);
}
Err(())
}
}
pub trait WriteWrapper {
async fn write(&mut self, msg: WriterMessage) -> Result<usize, String>;
}
pub enum WriterMessage {
Plain(Vec<u8>),
Gateway(Ipv4Addr)
}
pub struct DevWriter {
pub dr: SplitSink<Framed<AsyncDevice, TunPacketCodec>, Vec<u8>>
}
// TODO: implement custom Error
impl WriteWrapper for DevWriter {
async fn write(&mut self, msg: WriterMessage) -> Result<usize, String> {
match msg {
WriterMessage::Plain(buf) => {
let l = buf.len();
return match self.dr.send(buf).await {
Ok(()) => Ok(l),
Err(e) => Err(e.to_string())
};
},
// this thing should be abolished later
WriterMessage::Gateway(_addr) => {
Ok(0)
}
}
}
}
pub struct FdWriter {
pub br: File
}
impl WriteWrapper for FdWriter {
async fn write(&mut self, msg: WriterMessage) -> Result<usize, String> {
match msg {
WriterMessage::Plain(buf) => {
if let Ok(a) = self.br.write(&buf).await {
return Ok(a);
}
Err(String::new())
},
WriterMessage::Gateway(_addr) => {Ok(0)}
}
}
}
pub trait VpnClient {
async fn start(&self);
}
pub struct CoreVpnClient<T, R> where T: ReadWrapper, R: WriteWrapper {
pub client_config: ClientConfiguration,
pub dev_reader: T,
pub dev_writer: R,
pub close_token: CancellationToken
}
impl<T: ReadWrapper + std::marker::Sync, R: WriteWrapper + std::marker::Sync> CoreVpnClient<T, R> {
pub async fn start(&mut self, sock: UdpSocket) {
info!("Starting client...");
let dr_cancel: CancellationToken = CancellationToken::new();
let sr_cancel: CancellationToken = CancellationToken::new();
let sock_rec = Arc::new(sock);
let sock_snd = sock_rec.clone();
let (tx, mut rx) = mpsc::unbounded_channel::<Vec<u8>>();
let (dx, mut mx) = mpsc::unbounded_channel::<Vec<u8>>();
let cipher_shared: Arc<Mutex<Option<x25519_dalek::SharedSecret>>> = Arc::new(Mutex::new(None));
let priv_key = BASE64_STANDARD.decode(&self.client_config.client.private_key).unwrap();
let cipher_shared_clone = cipher_shared.clone();
let pkey = BASE64_STANDARD.decode(&self.client_config.client.public_key).unwrap();
let handshake = UDPVpnHandshake{ public_key: pkey, request_ip: self.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 _ = self.dev_writer.write(WriterMessage::Plain(handshake.serialize())).await;
let mut buf = vec![0; 1400]; // mtu
let mut buf1 = vec![0; 4096]; // should be changed to less bytes
loop {
tokio::select! {
_ = self.close_token.cancelled() => {
info!("Cancellation token has been thrown");
sr_cancel.cancel();
dr_cancel.cancel();
return;
}
rr = rx.recv() => {
if let Some(bytes) = rr {
info!("Write to tun. len={:?}", bytes.len());
if let Err(e) = self.dev_writer.write(WriterMessage::Plain(bytes)).await {
error!("Writing error: {:?}", e);
}
/* if let Err(e) = self.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() {
let aes = Aes256Gcm::new(s_c.as_ref().unwrap().as_bytes().into());
let nonce = Aes256Gcm::generate_nonce(&mut OsRng);
let ciphered_data = aes.encrypt(&nonce, &bytes[..]);
if let Ok(ciphered_d) = ciphered_data {
let vpn_packet = UDPVpnPacket{ data: ciphered_d, nonce: nonce.to_vec()};
let serialized_data = vpn_packet.serialize();
info!("Write to socket");
sock_snd.send(&serialized_data).await.unwrap();
} else {
error!("Socket encryption failed.");
}
} else {
error!("There is no shared_secret in main loop");
}
}
}
rr = self.dev_reader.read(&mut buf) => {
if let Ok(n) = rr {
info!("Read from tun."); // hex::encode(&buf[..n])
dx.send(buf[..n].to_vec()).unwrap();
}
}
rr = sock_rec.recv(&mut buf1) => {
if let Ok(l) = rr {
info!("Read from socket");
let mut s_cipher = cipher_shared_clone.lock().await;
match buf1.first() {
Some(h) => {
match h {
0 => {
let handshake = UDPVpnHandshake::deserialize(&(buf1[..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(&(buf1[..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."); }
}
},
None => { error!("There is no header."); }
}
drop(s_cipher);
}
}
};
}
}
}
}
pub mod android {
#![cfg(target_os = "android")]
use crate::client::general::{VpnClient, CoreVpnClient, FdReader, FdWriter};
use crate::config::ClientConfiguration;
use tokio_util::sync::CancellationToken;
use std::os::fd::FromRawFd;
use tokio::{net::UdpSocket, sync::{Mutex, mpsc}, io::{BufReader, BufWriter, AsyncWriteExt, AsyncReadExt}, fs::File};
use log::{error, info, warn};
pub struct AndroidClient {
pub client_config: ClientConfiguration,
pub fd: i32,
pub close_token: CancellationToken
}
impl VpnClient for AndroidClient {
async fn start(&self) {
info!("FD: {:?}", &self.fd);
let mut dev = unsafe { File::from_raw_fd(self.fd) };
let mut dev1 = unsafe { File::from_raw_fd(self.fd) };
let mut client = CoreVpnClient{client_config: self.client_config.clone(), dev_reader: FdReader{br: dev}, dev_writer: FdWriter{br: dev1}, close_token: self.close_token.clone()};
info!("SSS: {:?}", &self.client_config.server.endpoint);
let sock = UdpSocket::bind("0.0.0.0:0").await.unwrap();
sock.connect(&self.client_config.server.endpoint).await.unwrap();
client.start(sock).await;
}
}
}
pub mod desktop {
use crate::client::general::{CoreVpnClient, DevReader, DevWriter, VpnClient};
use crate::config::ClientConfiguration;
use futures::{SinkExt, StreamExt};
use log::info;
use tokio::net::UdpSocket;
use tokio::sync::Mutex;
#[cfg(target_os = "linux")]
use network_interface::{NetworkInterface, NetworkInterfaceConfig};
use tun::{ Configuration, create_as_async };
#[cfg(target_os = "linux")]
fn configure_routes(endpoint_ip: &str, s_interface: Option<String>) {
let interfaces = NetworkInterface::show().unwrap();
let net_inter = interfaces.iter()
.filter(|i| !i.addr.iter().any(|b| b.ip().to_string() == "127.0.0.1" || b.ip().to_string() == "::1") )
.min_by(|x, y| x.index.cmp(&y.index))
.unwrap();
let inter_name = if s_interface.is_some() { s_interface.unwrap() } else { net_inter.name.clone() };
info!("Main network interface: {:?}", inter_name);
/*let mut ip_output = std::process::Command::new("sudo")
.arg("ip")
.arg("route")
.arg("del")
.arg("default")
.output()
.expect("Failed to delete default gateway.");
if !ip_output.status.success() {
error!("Failed to delete default gateway: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}*/
let mut ip_output = std::process::Command::new("sudo")
.arg("ip")
.arg("-4")
.arg("route")
.arg("add")
.arg("0.0.0.0/0")
.arg("dev")
.arg("tun0")
.output()
.expect("Failed to execute ip route command.");
if !ip_output.status.success() {
log::error!("Failed to route all traffic: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}
// TODO: replace 192.168.0.1 with relative variable
ip_output = std::process::Command::new("sudo")
.arg("ip")
.arg("route")
.arg("add")
.arg(endpoint_ip.to_owned()+"/32")
.arg("via")
.arg("192.168.0.1")
.arg("dev")
.arg(inter_name)
.output()
.expect("Failed to make exception for vpns endpoint.");
if !ip_output.status.success() {
log::error!("Failed to forward packets: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}
}
pub struct DesktopClient {
pub client_config: ClientConfiguration,
pub s_interface: Option<String>
}
impl VpnClient for DesktopClient {
async fn start(&self) {
info!("s_interface: {:?}", &self.s_interface);
info!("client_address: {:?}", &self.client_config.client.address);
let mut config = Configuration::default();
config.address(&self.client_config.client.address)
.netmask("255.255.255.255")
.destination("10.66.66.1")
.mtu(1400)
.tun_name("tun0")
.up();
info!("SSS: {:?}", &self.client_config.server.endpoint);
let sock = UdpSocket::bind(("0.0.0.0", 0)).await.unwrap();
sock.connect(&self.client_config.server.endpoint).await.unwrap();
let dev = create_as_async(&config).unwrap();
let (mut dev_writer , mut dev_reader) = dev.into_framed().split();
let mut client = CoreVpnClient{ client_config: self.client_config.clone(), dev_reader: DevReader{ dr: dev_reader }, dev_writer: DevWriter{dr: dev_writer }, close_token: tokio_util::sync::CancellationToken::new()};
info!("Platform specific code");
/* #[cfg(target_os = "linux")]
{
let s_a: std::net::SocketAddr = self.client_config.server.endpoint.parse().unwrap();
configure_routes(&s_a.ip().to_string(), self.s_interface.clone());
}*/
client.start(sock).await;
}
}
}

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src/gui/mod.rs → frida_core/src/gui/mod.rs
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src/main.rs → frida_core/src/main.rs
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@ -1,171 +1,171 @@
use std::{fs, net::{Ipv4Addr}, str};
use clap::{App, Arg, ArgMatches};
use env_logger::Builder;
use log::{error, LevelFilter};
use crate::config::{ ServerConfiguration, ClientConfiguration, ObfsProtocol, ServerPeer };
use crate::client::{desktop::DesktopClient, general::VpnClient};
mod obfs;
mod server;
mod client;
mod udp;
mod config;
fn generate_server_config(matches: &ArgMatches, config_path: &str) {
let bind_address = matches.value_of("bind-address").expect("No bind address specified");
let internal_address = matches.value_of("internal-address").expect("No internal address specified");
let broadcast_mode = matches.value_of("broadcast-mode").is_some();
let keepalive: u8 = matches.value_of("keepalive").unwrap().parse().expect("Keepalive argument should be a number");
let obfs_type = match matches.value_of("obfs-type").expect("Obfs type should be specified") {
"dns" => ObfsProtocol::FakeDNS,
"veil" => ObfsProtocol::VEIL,
"xor" => ObfsProtocol::XOR,
_ => ObfsProtocol::NONE
};
let _ = fs::write(config_path, serde_yaml::to_string(&ServerConfiguration::default(bind_address, internal_address, broadcast_mode, keepalive, obfs_type)).unwrap());
}
fn generate_peer_config(matches: &ArgMatches, config_path: &str, cfg_raw: &String) {
let keepalive: u8 = matches.value_of("keepalive").unwrap().parse().expect("Keepalive argument should be a number");
let grab_endpoint = matches.value_of("grab-endpoint").is_some();
let endpoint = matches.value_of("endpoint").or(Some("0.0.0.0:0")).unwrap();
let peer_cfg = matches.value_of("peer-cfg").expect("No peer cfg path specified");
let mut config: ServerConfiguration = serde_yaml::from_str(cfg_raw).expect("Bad server config file structure");
let prs = &mut config.peers[..];
prs.sort_by(|a, b| a.ip.octets()[3].cmp(&b.ip.octets()[3]));
let mut internal_address = prs.iter()
.map(|p| p.ip)
.collect::<Vec<Ipv4Addr>>()
.first()
.or(Some(&config.interface.internal_address.parse::<Ipv4Addr>().unwrap()))
.unwrap()
.clone();
internal_address = Ipv4Addr::new(internal_address.octets()[0], internal_address.octets()[1], internal_address.octets()[2], internal_address.octets()[3]+1);
let cl_cfg = &ClientConfiguration::default(if grab_endpoint { &config.interface.bind_address } else { endpoint },
keepalive,
&config.interface.public_key,
&internal_address.to_string());
config.peers.push(ServerPeer { public_key: cl_cfg.client.public_key.clone(), ip: internal_address.clone() });
let _ = fs::write(peer_cfg, serde_yaml::to_string(cl_cfg).unwrap());
let _ = fs::write(config_path, serde_yaml::to_string(&config).unwrap());
}
async fn init_server(cfg_raw: &str, s_interface: Option<&str>) {
let config: ServerConfiguration = serde_yaml::from_str(cfg_raw).expect("Bad server config file structure");
server::server_mode(config, s_interface).await;
}
async fn init_client(cfg_raw: &str, s_interface: Option<String>) {
let config: ClientConfiguration = serde_yaml::from_str(cfg_raw).expect("Bad client config file structure");
//client::client_mode(config, s_interface).await;
let client = DesktopClient{client_config: config, s_interface};
client.start().await;
}
#[tokio::main]
async fn main() {
//console_subscriber::init();
// Initialize the logger with 'info' as the default level
Builder::new()
.filter(None, LevelFilter::Info)
.init();
let matches = App::new("Frida")
.version("0.1.2")
.author("alterwain")
.about("VPN software")
.arg(Arg::with_name("mode")
.required(true)
.index(1)
.possible_values(&["server", "client", "gen_cfg", "new_peer"])
.help("Runs the program in certain mode"))
.arg(Arg::with_name("config")
.long("config")
.required(true)
.value_name("FILE")
.help("The path to VPN configuration file")
.takes_value(true))
.arg(Arg::with_name("peer-cfg")
.long("peer-cfg")
.value_name("FILE")
.help("The path to VPN peer configuration file")
.takes_value(true))
.arg(Arg::with_name("bind-address")
.long("bind-address")
.value_name("IP:PORT")
.help("The ip:port that would be used to bind server (config)")
.takes_value(true))
.arg(Arg::with_name("endpoint")
.long("endpoint")
.value_name("IP:PORT")
.help("The ip:port that would be used by client to connect (config)")
.takes_value(true))
.arg(Arg::with_name("internal-address")
.long("internal-address")
.value_name("IP")
.help("The address of VPN server in it's subnet (config)")
.takes_value(true))
.arg(Arg::with_name("broadcast-mode")
.long("broadcast-mode")
.help("If set to true, then all incoming traffic with an unknown destination address will be forwarded to all peers (config)")
.takes_value(false))
.arg(Arg::with_name("grab-endpoint")
.long("grab-endpoint")
.help("If set to true, the endpoint address for peers will be grabbed from server config (config)")
.takes_value(false))
.arg(Arg::with_name("keepalive")
.long("keepalive")
.required(false)
.value_name("SECONDS")
.default_value("0")
.help("Keepalive packets interval (config)")
.takes_value(true))
.arg(Arg::with_name("obfs-type")
.long("obfs-type")
.possible_values(&["dns", "veil", "xor"])
.takes_value(true)
.value_name("OBFS")
.help("Obfuscation protocol (config)"))
.arg(Arg::with_name("interface")
.long("interface")
.required(false)
.takes_value(true)
.value_name("NAME")
.help("Explicitly set network interface name for routing"))
.get_matches();
let mode = matches.value_of("mode").unwrap();
if let Some(config_path) = matches.value_of("config") {
let data = fs::read(config_path);
if data.is_err() {
match mode {
"gen_cfg" => generate_server_config(&matches, config_path),
_ => error!("There is no config file.")
}
return;
}
let cfg_raw = &String::from_utf8(data.unwrap()).unwrap();
match mode {
"server" => init_server(cfg_raw, matches.value_of("interface")).await,
"client" => init_client(cfg_raw, matches.value_of("interface").map_or(None, |x| Some(String::from(x)))).await,
"new_peer" => generate_peer_config(&matches, config_path, cfg_raw),
_ => error!("There is config file already")
}
}
use std::{fs, net::{Ipv4Addr}, str};
use clap::{App, Arg, ArgMatches};
use env_logger::Builder;
use log::{error, LevelFilter};
use crate::config::{ ServerConfiguration, ClientConfiguration, ObfsProtocol, ServerPeer };
use crate::client::{desktop::DesktopClient, general::VpnClient};
mod obfs;
mod server;
mod client;
mod udp;
mod config;
fn generate_server_config(matches: &ArgMatches, config_path: &str) {
let bind_address = matches.value_of("bind-address").expect("No bind address specified");
let internal_address = matches.value_of("internal-address").expect("No internal address specified");
let broadcast_mode = matches.value_of("broadcast-mode").is_some();
let keepalive: u8 = matches.value_of("keepalive").unwrap().parse().expect("Keepalive argument should be a number");
let obfs_type = match matches.value_of("obfs-type").expect("Obfs type should be specified") {
"dns" => ObfsProtocol::FakeDNS,
"veil" => ObfsProtocol::VEIL,
"xor" => ObfsProtocol::XOR,
_ => ObfsProtocol::NONE
};
let _ = fs::write(config_path, serde_yaml::to_string(&ServerConfiguration::default(bind_address, internal_address, broadcast_mode, keepalive, obfs_type)).unwrap());
}
fn generate_peer_config(matches: &ArgMatches, config_path: &str, cfg_raw: &String) {
let keepalive: u8 = matches.value_of("keepalive").unwrap().parse().expect("Keepalive argument should be a number");
let grab_endpoint = matches.value_of("grab-endpoint").is_some();
let endpoint = matches.value_of("endpoint").or(Some("0.0.0.0:0")).unwrap();
let peer_cfg = matches.value_of("peer-cfg").expect("No peer cfg path specified");
let mut config: ServerConfiguration = serde_yaml::from_str(cfg_raw).expect("Bad server config file structure");
let prs = &mut config.peers[..];
prs.sort_by(|a, b| a.ip.octets()[3].cmp(&b.ip.octets()[3]));
let mut internal_address = prs.iter()
.map(|p| p.ip)
.collect::<Vec<Ipv4Addr>>()
.first()
.or(Some(&config.interface.internal_address.parse::<Ipv4Addr>().unwrap()))
.unwrap()
.clone();
internal_address = Ipv4Addr::new(internal_address.octets()[0], internal_address.octets()[1], internal_address.octets()[2], internal_address.octets()[3]+1);
let cl_cfg = &ClientConfiguration::default(if grab_endpoint { &config.interface.bind_address } else { endpoint },
keepalive,
&config.interface.public_key,
&internal_address.to_string());
config.peers.push(ServerPeer { public_key: cl_cfg.client.public_key.clone(), ip: internal_address.clone() });
let _ = fs::write(peer_cfg, serde_yaml::to_string(cl_cfg).unwrap());
let _ = fs::write(config_path, serde_yaml::to_string(&config).unwrap());
}
async fn init_server(cfg_raw: &str, s_interface: Option<&str>) {
let config: ServerConfiguration = serde_yaml::from_str(cfg_raw).expect("Bad server config file structure");
server::server_mode(config, s_interface).await;
}
async fn init_client(cfg_raw: &str, s_interface: Option<String>) {
let config: ClientConfiguration = serde_yaml::from_str(cfg_raw).expect("Bad client config file structure");
//client::client_mode(config, s_interface).await;
let client = DesktopClient{client_config: config, s_interface};
client.start().await;
}
#[tokio::main]
async fn main() {
//console_subscriber::init();
// Initialize the logger with 'info' as the default level
Builder::new()
.filter(None, LevelFilter::Info)
.init();
let matches = App::new("Frida")
.version("0.1.2")
.author("alterwain")
.about("VPN software")
.arg(Arg::with_name("mode")
.required(true)
.index(1)
.possible_values(&["server", "client", "gen_cfg", "new_peer"])
.help("Runs the program in certain mode"))
.arg(Arg::with_name("config")
.long("config")
.required(true)
.value_name("FILE")
.help("The path to VPN configuration file")
.takes_value(true))
.arg(Arg::with_name("peer-cfg")
.long("peer-cfg")
.value_name("FILE")
.help("The path to VPN peer configuration file")
.takes_value(true))
.arg(Arg::with_name("bind-address")
.long("bind-address")
.value_name("IP:PORT")
.help("The ip:port that would be used to bind server (config)")
.takes_value(true))
.arg(Arg::with_name("endpoint")
.long("endpoint")
.value_name("IP:PORT")
.help("The ip:port that would be used by client to connect (config)")
.takes_value(true))
.arg(Arg::with_name("internal-address")
.long("internal-address")
.value_name("IP")
.help("The address of VPN server in it's subnet (config)")
.takes_value(true))
.arg(Arg::with_name("broadcast-mode")
.long("broadcast-mode")
.help("If set to true, then all incoming traffic with an unknown destination address will be forwarded to all peers (config)")
.takes_value(false))
.arg(Arg::with_name("grab-endpoint")
.long("grab-endpoint")
.help("If set to true, the endpoint address for peers will be grabbed from server config (config)")
.takes_value(false))
.arg(Arg::with_name("keepalive")
.long("keepalive")
.required(false)
.value_name("SECONDS")
.default_value("0")
.help("Keepalive packets interval (config)")
.takes_value(true))
.arg(Arg::with_name("obfs-type")
.long("obfs-type")
.possible_values(&["dns", "veil", "xor"])
.takes_value(true)
.value_name("OBFS")
.help("Obfuscation protocol (config)"))
.arg(Arg::with_name("interface")
.long("interface")
.required(false)
.takes_value(true)
.value_name("NAME")
.help("Explicitly set network interface name for routing"))
.get_matches();
let mode = matches.value_of("mode").unwrap();
if let Some(config_path) = matches.value_of("config") {
let data = fs::read(config_path);
if data.is_err() {
match mode {
"gen_cfg" => generate_server_config(&matches, config_path),
_ => error!("There is no config file.")
}
return;
}
let cfg_raw = &String::from_utf8(data.unwrap()).unwrap();
match mode {
"server" => init_server(cfg_raw, matches.value_of("interface")).await,
"client" => init_client(cfg_raw, matches.value_of("interface").map_or(None, |x| Some(String::from(x)))).await,
"new_peer" => generate_peer_config(&matches, config_path, cfg_raw),
_ => error!("There is config file already")
}
}
}

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500
src/server.rs → frida_core/src/server.rs
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@ -1,251 +1,251 @@
use futures::{SinkExt, StreamExt};
use tokio::sync::mpsc;
use tokio::{net::UdpSocket, sync::Mutex, time};
use x25519_dalek::{PublicKey, StaticSecret};
use base64::prelude::*;
use log::{error, info};
use std::sync::Arc;
use std::net::{ SocketAddr, Ipv4Addr, IpAddr };
use std::collections::HashMap;
use aes_gcm::{ aead::{Aead, AeadCore, KeyInit, OsRng},
Aes256Gcm, Nonce };
use tun::{Configuration, create_as_async};
#[cfg(target_os = "linux")]
use network_interface::{NetworkInterface, NetworkInterfaceConfig};
use crate::config::{ ServerConfiguration, ServerPeer};
use crate::udp::{UDPKeepAlive, UDPSerializable, UDPVpnHandshake, UDPVpnPacket};
#[cfg(target_os = "linux")]
fn configure_routes(s_interface: Option<&str>) {
let interfaces = NetworkInterface::show().unwrap();
let net_inter = interfaces.iter()
.filter(|i| !i.addr.iter().any(|b| b.ip().to_string() == "127.0.0.1" || b.ip().to_string() == "::1") )
.min_by(|x, y| x.index.cmp(&y.index))
.unwrap();
info!("Main network interface: {:?}", net_inter.name);
let inter_name = if s_interface.is_some() { s_interface.unwrap() } else { &net_inter.name };
let mut ip_output = std::process::Command::new("iptables")
.arg("-A")
.arg("FORWARD")
.arg("-i")
.arg("tun0")
.arg("-o")
.arg(inter_name)
.arg("-j")
.arg("ACCEPT")
.output()
.expect("Failed to execute iptables command.");
if !ip_output.status.success() {
error!("Failed to forward packets: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}
ip_output = std::process::Command::new("iptables")
.arg("-A")
.arg("FORWARD")
.arg("-i")
.arg(inter_name)
.arg("-o")
.arg("tun0")
.arg("-m")
.arg("state")
.arg("--state")
.arg("ESTABLISHED,RELATED")
.arg("-j")
.arg("ACCEPT")
.output()
.expect("Failed to execute iptables command.");
if !ip_output.status.success() {
error!("Failed to forward packets: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}
ip_output = std::process::Command::new("iptables")
.arg("-t")
.arg("nat")
.arg("-A")
.arg("POSTROUTING")
.arg("-o")
.arg(inter_name)
.arg("-j")
.arg("MASQUERADE")
.output()
.expect("Failed to execute iptables command.");
if !ip_output.status.success() {
error!("Failed to forward packets: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}
}
pub async fn server_mode(server_config: ServerConfiguration, s_interface: Option<&str>) {
info!("Starting server...");
let mut config = Configuration::default();
config.address(&server_config.interface.internal_address)
.netmask("255.255.255.0")
.tun_name("tun0")
.up();
let dev = create_as_async(&config).unwrap();
let (mut dev_writer, mut dev_reader) = dev.into_framed().split();
let sock = UdpSocket::bind(&server_config.interface.bind_address).await.unwrap();
let sock_rec = Arc::new(sock);
let sock_hnd = sock_rec.clone();
let addresses = Arc::new(Mutex::new(HashMap::<IpAddr, UDPeer>::new()));
let peers = Arc::new(Mutex::new(Vec::<ServerPeer>::new()));
let (send2tun, mut recv2tun) = mpsc::unbounded_channel::<Vec<u8>>(); // unbounded::<Vec<u8>>();
let (send2hnd, mut recv2hnd) = mpsc::unbounded_channel::<(Vec<u8>, SocketAddr)>(); // unbounded::<(Vec<u8>, SocketAddr)>();
#[cfg(target_os = "linux")]
configure_routes(s_interface);
let tun_writer_task = tokio::spawn(async move {
loop {
if let Some(bytes) = recv2tun.recv().await {
info!("Sent to tun!");
let _ = dev_writer.send(bytes).await;
}
}
});
let keepalive_sec = server_config.interface.keepalive.clone();
let send2hnd_cl = send2hnd.clone();
let addrs_lcl = addresses.clone();
let alive_task = tokio::spawn(async move {
let kp_sc = keepalive_sec.clone();
if kp_sc <= 0 { return; }
loop {
time::sleep(time::Duration::from_secs(kp_sc.into())).await;
let mmp = addrs_lcl.lock().await;
mmp.values().for_each(|p| {
let _ = send2hnd_cl.send((UDPKeepAlive{}.serialize(), p.addr));
});
drop(mmp);
}
});
let sock_writer_task = tokio::spawn(async move {
loop {
if let Some((handshake, addr)) = recv2hnd.recv().await {
info!("I SENT THAT STUFF");
let _ = sock_hnd.send_to(&handshake, addr).await;
}
}
});
let addrs_cl = addresses.clone();
let send2hnd_sr = send2hnd.clone();
let tun_reader_task = tokio::spawn(async move {
while let Some(Ok(buf)) = dev_reader.next().await {
if buf.len() <= 19 { continue; }
let ip = IpAddr::V4(Ipv4Addr::new(buf[16], buf[17], buf[18], buf[19]));
let mp = addrs_cl.lock().await;
if let Some(peer) = mp.get(&ip) {
let aes = Aes256Gcm::new(&peer.shared_secret.into());
let nonce = Aes256Gcm::generate_nonce(&mut OsRng);
let ciphered_data = aes.encrypt(&nonce, &buf[..]);
if let Ok(ciphered_d) = ciphered_data {
let vpn_packet = UDPVpnPacket{ data: ciphered_d, nonce: nonce.to_vec()};
let _ = send2hnd_sr.send((vpn_packet.serialize(), peer.addr));
} else {
error!("Traffic encryption failed.");
}
} else {
// TODO: check in config is broadcast mode enabled (if not, do not send this to everyone)
//mp.values().for_each(| peer | { sock_snd.send_to(&buf[..n], peer.addr); });
}
drop(mp);
}
});
let addrs_lp = addresses.clone();
let peers_lp = peers.clone();
let mut f_plp = peers_lp.lock().await;
server_config.peers.iter().for_each(|c| f_plp.push(c.clone()));
drop(f_plp);
let send2hnd_ssr = send2hnd.clone();
let sock_reader_task = tokio::spawn(async move {
let mut buf = vec![0; 2048];
loop {
if let Ok((len, addr)) = sock_rec.recv_from(&mut buf).await {
info!("There is packet!");
let mut mp = addrs_lp.lock().await;
let plp = peers_lp.lock().await;
match buf.first() {
Some(h) => {
match h {
0 => {
let handshake = UDPVpnHandshake::deserialize(&buf);
info!("Got handshake from {:?}", handshake.request_ip);
let skey = BASE64_STANDARD.encode(&handshake.public_key);
if plp.iter().any(|c| c.ip == handshake.request_ip && c.public_key == skey) {
let internal_ip = IpAddr::V4(handshake.request_ip);
info!("Accepted client");
let mut k = [0u8; 32];
for (&x, p) in handshake.public_key.iter().zip(k.iter_mut()) {
*p = x;
}
let static_secret = BASE64_STANDARD.decode(&server_config.interface.private_key).unwrap();
let mut k1 = [0u8; 32];
for (&x, p) in static_secret.iter().zip(k1.iter_mut()) {
*p = x;
}
let shared_secret = StaticSecret::from(k1)
.diffie_hellman(&PublicKey::from(k));
mp.insert(internal_ip, UDPeer { addr, shared_secret: *shared_secret.as_bytes() });
let handshake_response = UDPVpnHandshake{ public_key: BASE64_STANDARD.decode(&server_config.interface.public_key).unwrap(), request_ip: handshake.request_ip };
let _ = send2hnd_ssr.send((handshake_response.serialize(), addr));
} else {
info!("Bad handshake");
//plp.iter().for_each(|c| info!("ip: {:?}; pkey: {:?}", c.ip, c.public_key));
}
}, // handshake
1 => {
let packet = UDPVpnPacket::deserialize(&(buf[..len].to_vec()));
mp.values().filter(| p | p.addr == addr).for_each(|p| {
let aes = Aes256Gcm::new(&p.shared_secret.into());
let nonce = Nonce::clone_from_slice(&packet.nonce[..]);
match aes.decrypt(&nonce, &packet.data[..]) {
Ok(decrypted) => { let _ = send2tun.send(decrypted); },
Err(error) => error!("Decryption error! {:?}", error)
}
});
}, // payload
2 => { }, // got keepalive packet
_ => error!("Unexpected header value.")
}
},
None => error!("There is no header")
}
drop(plp);
drop(mp);
}
}
});
// should be refactored
let _ = tokio::join!(tun_reader_task, sock_reader_task, sock_writer_task, tun_writer_task, alive_task);
}
struct UDPeer {
addr: SocketAddr,
shared_secret: [u8; 32]
use futures::{SinkExt, StreamExt};
use tokio::sync::mpsc;
use tokio::{net::UdpSocket, sync::Mutex, time};
use x25519_dalek::{PublicKey, StaticSecret};
use base64::prelude::*;
use log::{error, info};
use std::sync::Arc;
use std::net::{ SocketAddr, Ipv4Addr, IpAddr };
use std::collections::HashMap;
use aes_gcm::{ aead::{Aead, AeadCore, KeyInit, OsRng},
Aes256Gcm, Nonce };
use tun::{Configuration, create_as_async};
#[cfg(target_os = "linux")]
use network_interface::{NetworkInterface, NetworkInterfaceConfig};
use crate::config::{ ServerConfiguration, ServerPeer};
use crate::udp::{UDPKeepAlive, UDPSerializable, UDPVpnHandshake, UDPVpnPacket};
#[cfg(target_os = "linux")]
fn configure_routes(s_interface: Option<&str>) {
let interfaces = NetworkInterface::show().unwrap();
let net_inter = interfaces.iter()
.filter(|i| !i.addr.iter().any(|b| b.ip().to_string() == "127.0.0.1" || b.ip().to_string() == "::1") )
.min_by(|x, y| x.index.cmp(&y.index))
.unwrap();
info!("Main network interface: {:?}", net_inter.name);
let inter_name = if s_interface.is_some() { s_interface.unwrap() } else { &net_inter.name };
let mut ip_output = std::process::Command::new("iptables")
.arg("-A")
.arg("FORWARD")
.arg("-i")
.arg("tun0")
.arg("-o")
.arg(inter_name)
.arg("-j")
.arg("ACCEPT")
.output()
.expect("Failed to execute iptables command.");
if !ip_output.status.success() {
error!("Failed to forward packets: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}
ip_output = std::process::Command::new("iptables")
.arg("-A")
.arg("FORWARD")
.arg("-i")
.arg(inter_name)
.arg("-o")
.arg("tun0")
.arg("-m")
.arg("state")
.arg("--state")
.arg("ESTABLISHED,RELATED")
.arg("-j")
.arg("ACCEPT")
.output()
.expect("Failed to execute iptables command.");
if !ip_output.status.success() {
error!("Failed to forward packets: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}
ip_output = std::process::Command::new("iptables")
.arg("-t")
.arg("nat")
.arg("-A")
.arg("POSTROUTING")
.arg("-o")
.arg(inter_name)
.arg("-j")
.arg("MASQUERADE")
.output()
.expect("Failed to execute iptables command.");
if !ip_output.status.success() {
error!("Failed to forward packets: {:?}", String::from_utf8_lossy(&ip_output.stderr));
}
}
pub async fn server_mode(server_config: ServerConfiguration, s_interface: Option<&str>) {
info!("Starting server...");
let mut config = Configuration::default();
config.address(&server_config.interface.internal_address)
.netmask("255.255.255.0")
.tun_name("tun0")
.up();
let dev = create_as_async(&config).unwrap();
let (mut dev_writer, mut dev_reader) = dev.into_framed().split();
let sock = UdpSocket::bind(&server_config.interface.bind_address).await.unwrap();
let sock_rec = Arc::new(sock);
let sock_hnd = sock_rec.clone();
let addresses = Arc::new(Mutex::new(HashMap::<IpAddr, UDPeer>::new()));
let peers = Arc::new(Mutex::new(Vec::<ServerPeer>::new()));
let (send2tun, mut recv2tun) = mpsc::unbounded_channel::<Vec<u8>>(); // unbounded::<Vec<u8>>();
let (send2hnd, mut recv2hnd) = mpsc::unbounded_channel::<(Vec<u8>, SocketAddr)>(); // unbounded::<(Vec<u8>, SocketAddr)>();
#[cfg(target_os = "linux")]
configure_routes(s_interface);
let tun_writer_task = tokio::spawn(async move {
loop {
if let Some(bytes) = recv2tun.recv().await {
info!("Sent to tun!");
let _ = dev_writer.send(bytes).await;
}
}
});
let keepalive_sec = server_config.interface.keepalive.clone();
let send2hnd_cl = send2hnd.clone();
let addrs_lcl = addresses.clone();
let alive_task = tokio::spawn(async move {
let kp_sc = keepalive_sec.clone();
if kp_sc <= 0 { return; }
loop {
time::sleep(time::Duration::from_secs(kp_sc.into())).await;
let mmp = addrs_lcl.lock().await;
mmp.values().for_each(|p| {
let _ = send2hnd_cl.send((UDPKeepAlive{}.serialize(), p.addr));
});
drop(mmp);
}
});
let sock_writer_task = tokio::spawn(async move {
loop {
if let Some((handshake, addr)) = recv2hnd.recv().await {
info!("I SENT THAT STUFF");
let _ = sock_hnd.send_to(&handshake, addr).await;
}
}
});
let addrs_cl = addresses.clone();
let send2hnd_sr = send2hnd.clone();
let tun_reader_task = tokio::spawn(async move {
while let Some(Ok(buf)) = dev_reader.next().await {
if buf.len() <= 19 { continue; }
let ip = IpAddr::V4(Ipv4Addr::new(buf[16], buf[17], buf[18], buf[19]));
let mp = addrs_cl.lock().await;
if let Some(peer) = mp.get(&ip) {
let aes = Aes256Gcm::new(&peer.shared_secret.into());
let nonce = Aes256Gcm::generate_nonce(&mut OsRng);
let ciphered_data = aes.encrypt(&nonce, &buf[..]);
if let Ok(ciphered_d) = ciphered_data {
let vpn_packet = UDPVpnPacket{ data: ciphered_d, nonce: nonce.to_vec()};
let _ = send2hnd_sr.send((vpn_packet.serialize(), peer.addr));
} else {
error!("Traffic encryption failed.");
}
} else {
// TODO: check in config is broadcast mode enabled (if not, do not send this to everyone)
//mp.values().for_each(| peer | { sock_snd.send_to(&buf[..n], peer.addr); });
}
drop(mp);
}
});
let addrs_lp = addresses.clone();
let peers_lp = peers.clone();
let mut f_plp = peers_lp.lock().await;
server_config.peers.iter().for_each(|c| f_plp.push(c.clone()));
drop(f_plp);
let send2hnd_ssr = send2hnd.clone();
let sock_reader_task = tokio::spawn(async move {
let mut buf = vec![0; 2048];
loop {
if let Ok((len, addr)) = sock_rec.recv_from(&mut buf).await {
info!("There is packet!");
let mut mp = addrs_lp.lock().await;
let plp = peers_lp.lock().await;
match buf.first() {
Some(h) => {
match h {
0 => {
let handshake = UDPVpnHandshake::deserialize(&buf);
info!("Got handshake from {:?}", handshake.request_ip);
let skey = BASE64_STANDARD.encode(&handshake.public_key);
if plp.iter().any(|c| c.ip == handshake.request_ip && c.public_key == skey) {
let internal_ip = IpAddr::V4(handshake.request_ip);
info!("Accepted client");
let mut k = [0u8; 32];
for (&x, p) in handshake.public_key.iter().zip(k.iter_mut()) {
*p = x;
}
let static_secret = BASE64_STANDARD.decode(&server_config.interface.private_key).unwrap();
let mut k1 = [0u8; 32];
for (&x, p) in static_secret.iter().zip(k1.iter_mut()) {
*p = x;
}
let shared_secret = StaticSecret::from(k1)
.diffie_hellman(&PublicKey::from(k));
mp.insert(internal_ip, UDPeer { addr, shared_secret: *shared_secret.as_bytes() });
let handshake_response = UDPVpnHandshake{ public_key: BASE64_STANDARD.decode(&server_config.interface.public_key).unwrap(), request_ip: handshake.request_ip };
let _ = send2hnd_ssr.send((handshake_response.serialize(), addr));
} else {
info!("Bad handshake");
//plp.iter().for_each(|c| info!("ip: {:?}; pkey: {:?}", c.ip, c.public_key));
}
}, // handshake
1 => {
let packet = UDPVpnPacket::deserialize(&(buf[..len].to_vec()));
mp.values().filter(| p | p.addr == addr).for_each(|p| {
let aes = Aes256Gcm::new(&p.shared_secret.into());
let nonce = Nonce::clone_from_slice(&packet.nonce[..]);
match aes.decrypt(&nonce, &packet.data[..]) {
Ok(decrypted) => { let _ = send2tun.send(decrypted); },
Err(error) => error!("Decryption error! {:?}", error)
}
});
}, // payload
2 => { }, // got keepalive packet
_ => error!("Unexpected header value.")
}
},
None => error!("There is no header")
}
drop(plp);
drop(mp);
}
}
});
// should be refactored
let _ = tokio::join!(tun_reader_task, sock_reader_task, sock_writer_task, tun_writer_task, alive_task);
}
struct UDPeer {
addr: SocketAddr,
shared_secret: [u8; 32]
}

0
src/udp.rs → frida_core/src/udp.rs
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0
tray.rc → frida_core/tray.rc
View File