XCFramework build for apple (#93)

README.md

@@ -25,6 +25,12 @@ Clone the repository and `cd` into the project folder. Then run the following:
 cargo build --release
 ```
 
+### Building Framework for Apple Devices
+To build an XCFramework for macOS and iOS, run the following: 
+```
+./build-apple.sh
+```
+
 ## Installation
 
 ### Install from binary

apple/tun2proxy/Tun2proxyWrapper.m

@@ -19,11 +19,11 @@
                 verbose:(bool)verbose {
   ArgDns dns_strategy = dns_over_tcp ? OverTcp : Direct;
   ArgVerbosity v = verbose ? Trace : Info;
-  tun2proxy_run_with_fd(proxy_url.UTF8String, tun_fd, tun_mtu, dns_strategy, v);
+  tun2proxy_with_fd_run(proxy_url.UTF8String, tun_fd, tun_mtu, dns_strategy, v);
 }
 
 + (void)shutdown {
-  tun2proxy_stop();
+  tun2proxy_with_fd_stop();
 }
 
 @end

build-apple.sh

@@ -0,0 +1,44 @@
+#! /bin/sh
+
+echo "Setting up the rust environment..."
+rustup target add aarch64-apple-ios aarch64-apple-ios-sim x86_64-apple-ios x86_64-apple-darwin aarch64-apple-darwin
+cargo install cbindgen
+
+echo "Building..."
+cargo build --release --target x86_64-apple-darwin
+cargo build --release --target aarch64-apple-darwin
+cargo build --release --target aarch64-apple-ios
+cargo build --release --target x86_64-apple-ios
+cargo build --release --target aarch64-apple-ios-sim
+
+echo "Generating includes..."
+mkdir -p target/include/
+cbindgen --config cbindgen.toml -l C -o target/include/tun2proxy.h
+cat > target/include/module.modulemap <<EOF
+framework module Tun2Proxy {
+    umbrella header "tun2proxy.h"
+
+    export *
+    module * { export * }
+}
+EOF
+
+echo "lipo..."
+echo "Simulator"
+lipo -create \
+target/aarch64-apple-ios-sim/release/libtun2proxy.a \
+target/x86_64-apple-ios/release/libtun2proxy.a \
+-output ./target/libtun2proxy-ios-sim.a
+echo "MacOS"
+lipo -create \
+target/aarch64-apple-darwin/release/libtun2proxy.a \
+target/x86_64-apple-darwin/release/libtun2proxy.a \
+-output ./target/libtun2proxy-macos.a
+
+echo "Creating XCFramework"
+rm -rf ./target/Tun2Proxy.xcframework
+xcodebuild -create-xcframework \
+-library ./target/aarch64-apple-ios/release/libtun2proxy.a -headers ./target/include/ \
+-library ./target/libtun2proxy-ios-sim.a -headers ./target/include/ \
+-library ./target/libtun2proxy-macos.a -headers ./target/include/ \
+-output ./target/Tun2Proxy.xcframework

cbindgen.toml

@@ -1,8 +1,9 @@
 [export]
 include = [
-    "tun2proxy_run_with_fd",
-    "tun2proxy_run_with_name",
-    "tun2proxy_stop",
+    "tun2proxy_with_fd_run",
+    "tun2proxy_with_name_run",
+    "tun2proxy_with_name_stop",
+    "tun2proxy_with_fd_stop",
     "tun2proxy_set_log_callback",
 ]
 exclude = [

src/apple.rs

@@ -1,4 +1,4 @@
-#![cfg(target_os = "ios")]
+#![cfg(any(target_os = "ios", target_os = "macos"))]
 
 use crate::{
     args::{ArgDns, ArgProxy},
@@ -9,8 +9,14 @@ use std::os::raw::{c_char, c_int, c_ushort};
 /// # Safety
 ///
 /// Run the tun2proxy component with some arguments.
+/// Parameters:
+/// - proxy_url: the proxy url, e.g. "socks5://127.0.0.1:1080"
+/// - tun_fd: the tun file descriptor
+/// - tun_mtu: the tun mtu
+/// - dns_strategy: the dns strategy, see ArgDns enum
+/// - verbosity: the verbosity level, see ArgVerbosity enum
 #[no_mangle]
-pub unsafe extern "C" fn tun2proxy_run_with_fd(
+pub unsafe extern "C" fn tun2proxy_with_fd_run(
     proxy_url: *const c_char,
     tun_fd: c_int,
     tun_mtu: c_ushort,
@@ -33,6 +39,6 @@ pub unsafe extern "C" fn tun2proxy_run_with_fd(
 ///
 /// Shutdown the tun2proxy component.
 #[no_mangle]
-pub unsafe extern "C" fn tun2proxy_stop() -> c_int {
+pub unsafe extern "C" fn tun2proxy_with_fd_stop() -> c_int {
     crate::mobile_api::mobile_stop()
 }

src/desktop_api.rs

@@ -13,8 +13,15 @@ static TUN_QUIT: std::sync::Mutex<Option<tokio_util::sync::CancellationToken>> =
 /// # Safety
 ///
 /// Run the tun2proxy component with some arguments.
+/// Parameters:
+/// - proxy_url: the proxy url, e.g. "socks5://127.0.0.1:1080"
+/// - tun: the tun device name, e.g. "utun5"
+/// - bypass: the bypass ip, e.g. "123.45.67.89"
+/// - dns_strategy: the dns strategy, see ArgDns enum
+/// - root_privilege: whether to run with root privilege
+/// - verbosity: the verbosity level, see ArgVerbosity enum
 #[no_mangle]
-pub unsafe extern "C" fn tun2proxy_run_with_name(
+pub unsafe extern "C" fn tun2proxy_with_name_run(
     proxy_url: *const c_char,
     tun: *const c_char,
     bypass: *const c_char,
@@ -142,7 +149,7 @@ pub async fn desktop_run_async(args: Args, shutdown_token: tokio_util::sync::Can
 ///
 /// Shutdown the tun2proxy component.
 #[no_mangle]
-pub unsafe extern "C" fn tun2proxy_stop() -> c_int {
+pub unsafe extern "C" fn tun2proxy_with_name_stop() -> c_int {
     if let Ok(lock) = TUN_QUIT.lock() {
         if let Some(shutdown_token) = lock.as_ref() {
             shutdown_token.cancel();

src/lib.rs

@@ -29,7 +29,11 @@ pub use desktop_api::desktop_run_async;
 #[cfg(any(target_os = "ios", target_os = "android"))]
 pub use mobile_api::{desktop_run_async, mobile_run, mobile_stop};
 
+#[cfg(target_os = "macos")]
+pub use mobile_api::{mobile_run, mobile_stop};
+
 mod android;
+mod apple;
 mod args;
 mod desktop_api;
 mod directions;
@@ -37,7 +41,6 @@ mod dns;
 mod dump_logger;
 mod error;
 mod http;
-mod ios;
 mod mobile_api;
 mod proxy_handler;
 mod session_info;

src/mobile_api.rs

@@ -1,4 +1,4 @@
-#![cfg(any(target_os = "ios", target_os = "android"))]
+#![cfg(any(target_os = "ios", target_os = "android", target_os = "macos"))]
 
 use crate::Args;
 use std::os::raw::c_int;
@@ -7,6 +7,7 @@ static TUN_QUIT: std::sync::Mutex<Option<tokio_util::sync::CancellationToken>> =
 
 /// Dummy function to make the build pass.
 #[doc(hidden)]
+#[cfg(not(target_os = "macos"))]
 pub async fn desktop_run_async(_: Args, _: tokio_util::sync::CancellationToken) -> std::io::Result<()> {
     Ok(())
 }
@@ -28,11 +29,13 @@ pub fn mobile_run(args: Args, tun_mtu: u16) -> c_int {
         #[cfg(unix)]
         if let Some(fd) = args.tun_fd {
             config.raw_fd(fd);
-        } else {
-            config.name(&args.tun);
+        } else if let Some(ref tun) = args.tun {
+            config.tun_name(tun);
         }
         #[cfg(windows)]
-        config.name(&args.tun);
+        if let Some(ref tun) = args.tun {
+            config.tun_name(tun);
+        }
 
         let device = tun2::create_as_async(&config).map_err(std::io::Error::from)?;
         let join_handle = tokio::spawn(crate::run(device, tun_mtu, args, shutdown_token));