├── keys ├── client_privatekey ├── client_publickey ├── server_privatekey ├── server_publickey_client ├── README.md └── emp.conf ├── .github ├── CODEOWNERS └── workflows │ └── build.yml ├── module.modulemap ├── .gitignore ├── src ├── run.rs └── lib.rs ├── Cargo.toml ├── README.md ├── cbindgen.toml ├── Makefile └── LICENSE /keys/client_privatekey: -------------------------------------------------------------------------------- 1 | AIIeeUDvk3NeAFJ9BWCQvPJize/9WZibMnGJ/0rt5k4= 2 | -------------------------------------------------------------------------------- /keys/client_publickey: -------------------------------------------------------------------------------- 1 | ow01dGyrgRSrjln9bGb6fx0FwY5XKSVMTaoKQ2GDSkM= 2 | -------------------------------------------------------------------------------- /keys/server_privatekey: -------------------------------------------------------------------------------- 1 | UI+sCDEketXDq6vOAidLe0mYiHogMh1TA2zg3CqlxEA= 2 | -------------------------------------------------------------------------------- /keys/server_publickey_client: -------------------------------------------------------------------------------- 1 | kHDoekeYhBvfW9a9UQ+UCmpbG423eejTjcjW+DT+JF0= 2 | -------------------------------------------------------------------------------- /.github/CODEOWNERS: -------------------------------------------------------------------------------- 1 | * @JoeMatt @lonkelle @nythepegasus @Spidy123222 @SternXD 2 | -------------------------------------------------------------------------------- /module.modulemap: -------------------------------------------------------------------------------- 1 | module em_proxy { 2 | header "em_proxy.h" 3 | 4 | export * 5 | } 6 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | /target 2 | /Cargo.lock 3 | em_proxy.h 4 | /em_proxy.xcframework 5 | /em_proxy.xcframework.zip 6 | /include 7 | *.a -------------------------------------------------------------------------------- /keys/README.md: -------------------------------------------------------------------------------- 1 | Yes, I am aware that there are private keys in this directory. 2 | You can't do anything with them, so go ahead and steal them or whatever. -------------------------------------------------------------------------------- /keys/emp.conf: -------------------------------------------------------------------------------- 1 | [Interface] 2 | PrivateKey = AIIeeUDvk3NeAFJ9BWCQvPJize/9WZibMnGJ/0rt5k4= 3 | Address = 10.7.0.10/24 4 | DNS = 1.1.1.1 5 | 6 | [Peer] 7 | PublicKey = kHDoekeYhBvfW9a9UQ+UCmpbG423eejTjcjW+DT+JF0= 8 | AllowedIPs = 10.7.0.0/24 9 | Endpoint = 127.0.0.1:51820 10 | PersistentKeepalive = 25 11 | -------------------------------------------------------------------------------- /src/run.rs: -------------------------------------------------------------------------------- 1 | // Jackson Coxson 2 | // Stand-alone binary to run EMP 3 | 4 | mod lib; 5 | 6 | use std::{net::SocketAddrV4, str::FromStr}; 7 | 8 | use lib::start_loopback; 9 | 10 | fn main() { 11 | let bind_addr = SocketAddrV4::from_str("127.0.0.1:51820").unwrap(); 12 | let _handle = start_loopback(bind_addr); 13 | 14 | loop { 15 | std::thread::sleep(std::time::Duration::from_secs(69)); 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /Cargo.toml: -------------------------------------------------------------------------------- 1 | [package] 2 | name = "em_proxy" 3 | version = "0.1.0" 4 | edition = "2021" 5 | 6 | # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html 7 | 8 | [[bin]] 9 | name = "run" 10 | path = "src/run.rs" 11 | 12 | [dependencies] 13 | boringtun = { version = "0.4.0" } 14 | libc = { version = "0.2.126" } 15 | once_cell = { version = "1.15.0" } 16 | 17 | simple_logger = { version = "2.3.0" } 18 | log = { version = "0.4.17" } 19 | 20 | [dev-dependencies] 21 | rand = { version = "*" } 22 | 23 | [build-dependencies] 24 | cbindgen = "0.20.0" 25 | 26 | [lib] 27 | crate-type = ["staticlib"] 28 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Emotional Mangling Proxy 2 | 3 | _What Apple and I both share after this is done_ 4 | 5 | [![Build em_proxy](https://github.com/SideStore/em_proxy/actions/workflows/build.yml/badge.svg)](https://github.com/SideStore/em_proxy/actions/workflows/build.yml) 6 | 7 | ## What is EMP 8 | 9 | A transparent interface level proxy for TCP packets. This project is designed to work around the loopback limitations on iOS. 10 | 11 | ## How does it work 12 | 13 | By modifying packets and retransmitting them back through a WireGuard tunnel 14 | 15 | ## How to build 16 | 17 | ```sh 18 | cargo build --target aarch64-apple-ios 19 | ``` 20 | 21 | ## Publishing new release 22 | 23 | We use a github action to generate a `.xcframework` for use in Swift PM or XCode. 24 | 25 | This overwrites the last build on the tag `Build`. 26 | 27 | Either push a commit with `[build]` as the prefix for the commit message or push an empty commit with: 28 | 29 | ```sh 30 | git commit --allow-empty -m "[build]" 31 | ``` 32 | 33 | ## Progress 34 | 35 | ![Alt](https://repobeats.axiom.co/api/embed/bb97132e96fd2c4caac60aa1441ae55b6382afec.svg "Repobeats analytics image") 36 | -------------------------------------------------------------------------------- /.github/workflows/build.yml: -------------------------------------------------------------------------------- 1 | name: Build em_proxy 2 | 3 | on: [push] 4 | 5 | jobs: 6 | build: 7 | name: Build em_proxy 8 | if: startsWith(github.event.head_commit.message, '[build]') 9 | concurrency: 10 | group: ${{ github.ref }} 11 | cancel-in-progress: true 12 | runs-on: macos-14 13 | 14 | steps: 15 | - name: Checkout 16 | uses: actions/checkout@v4 17 | 18 | - name: Install rust 19 | uses: actions-rs/toolchain@v1 20 | with: 21 | toolchain: stable 22 | profile: minimal 23 | 24 | - name: Install rust targets for iOS 25 | run: rustup target add aarch64-apple-ios aarch64-apple-ios-sim x86_64-apple-ios 26 | 27 | - name: Cache rust 28 | uses: Swatinem/rust-cache@v2 29 | 30 | - name: Setup Xcode 31 | uses: maxim-lobanov/setup-xcode@v1.6.0 32 | with: 33 | xcode-version: 15.4 34 | 35 | - name: Build 36 | run: make zip 37 | 38 | - name: Upload to release 39 | uses: IsaacShelton/update-existing-release@v1.3.1 40 | with: 41 | token: ${{ secrets.GITHUB_TOKEN }} 42 | release: "Build" 43 | tag: "build" 44 | files: | 45 | em_proxy.xcframework.zip 46 | em_proxy.h 47 | target/debug/libem_proxy-ios.a 48 | target/debug/libem_proxy-sim.a 49 | body: | 50 | Commit: https://github.com/${{ github.repository }}/commit/${{ github.sha }} 51 | -------------------------------------------------------------------------------- /cbindgen.toml: -------------------------------------------------------------------------------- 1 | language = "C" 2 | 3 | 4 | 5 | ############## Options for Wrapping the Contents of the Header ################# 6 | 7 | header = "// Jackson Coxson" 8 | # trailer = "/* Text to put at the end of the generated file */" 9 | # include_guard = "my_bindings_h" 10 | # pragma_once = true 11 | # autogen_warning = "/* Warning, this file is autogenerated by cbindgen. Don't modify this manually. */" 12 | include_version = false 13 | # namespace = "my_namespace" 14 | namespaces = [] 15 | using_namespaces = [] 16 | sys_includes = [] 17 | includes = [] 18 | no_includes = false 19 | after_includes = "" 20 | 21 | 22 | 23 | 24 | ############################ Code Style Options ################################ 25 | 26 | braces = "SameLine" 27 | line_length = 500 28 | tab_width = 2 29 | documentation = true 30 | documentation_style = "auto" 31 | #documentation_length = "full" 32 | line_endings = "LF" # also "CR", "CRLF", "Native" 33 | 34 | 35 | 36 | 37 | ############################# Codegen Options ################################## 38 | 39 | style = "both" 40 | sort_by = "Name" # default for `fn.sort_by` and `const.sort_by` 41 | usize_is_size_t = true 42 | 43 | 44 | 45 | [defines] 46 | # "target_os = freebsd" = "DEFINE_FREEBSD" 47 | # "feature = serde" = "DEFINE_SERDE" 48 | 49 | 50 | 51 | [export] 52 | include = [] 53 | exclude = [] 54 | # prefix = "CAPI_" 55 | item_types = [] 56 | renaming_overrides_prefixing = false 57 | 58 | 59 | 60 | [export.rename] 61 | 62 | 63 | 64 | [export.body] 65 | 66 | 67 | [export.mangle] 68 | 69 | 70 | [fn] 71 | rename_args = "None" 72 | # must_use = "MUST_USE_FUNC" 73 | # no_return = "NO_RETURN" 74 | # prefix = "START_FUNC" 75 | # postfix = "END_FUNC" 76 | args = "auto" 77 | sort_by = "Name" 78 | 79 | 80 | 81 | 82 | [struct] 83 | rename_fields = "None" 84 | # must_use = "MUST_USE_STRUCT" 85 | derive_constructor = false 86 | derive_eq = false 87 | derive_neq = false 88 | derive_lt = false 89 | derive_lte = false 90 | derive_gt = false 91 | derive_gte = false 92 | 93 | 94 | 95 | 96 | [enum] 97 | rename_variants = "None" 98 | # must_use = "MUST_USE_ENUM" 99 | add_sentinel = false 100 | prefix_with_name = false 101 | derive_helper_methods = false 102 | derive_const_casts = false 103 | derive_mut_casts = false 104 | # cast_assert_name = "ASSERT" 105 | derive_tagged_enum_destructor = false 106 | derive_tagged_enum_copy_constructor = false 107 | enum_class = true 108 | private_default_tagged_enum_constructor = false 109 | 110 | 111 | 112 | 113 | [const] 114 | allow_static_const = true 115 | allow_constexpr = false 116 | sort_by = "Name" 117 | 118 | 119 | 120 | 121 | [macro_expansion] 122 | bitflags = false 123 | 124 | 125 | 126 | 127 | 128 | 129 | ############## Options for How Your Rust library Should Be Parsed ############## 130 | 131 | [parse] 132 | parse_deps = false 133 | # include = [] 134 | exclude = [] 135 | clean = false 136 | extra_bindings = [] 137 | 138 | 139 | 140 | [parse.expand] 141 | crates = [] 142 | all_features = false 143 | default_features = true 144 | features = [] -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | .DEFAULT_GOAL := build 2 | 3 | TARGET := em_proxy 4 | 5 | ARCH_IOS_NATIVE := aarch64-apple-ios 6 | ARCH_IOS_SIM := aarch64-apple-ios-sim 7 | ARCH_IOS_SIMX86 := x86_64-apple-ios 8 | 9 | ALL_ARCH := ARCH_IOS_NATIVE ARCH_IOS_SIM ARCH_IOS_SIMX86 10 | 11 | add_rust_targets: 12 | @echo "Adding rustup targets" 13 | rustup target add $(ALL_ARCH) 14 | 15 | DEBUG_FLAGS := 16 | RELEASE_FLAGS := --release 17 | 18 | IOS_NATIVE_DEBUG := target/$(ARCH_IOS_NATIVE)/debug/lib$(TARGET).a 19 | IOS_NATIVE_RELEASE := target/$(ARCH_IOS_NATIVE)/release/lib$(TARGET).a 20 | IOS_NATIVE_LIPO := target/lib$(TARGET)-ios.a 21 | LIPO_NATIVE_DEBUG := target/debug/lib$(TARGET)-ios.a 22 | LIPO_NATIVE_RELEASE := target/release/lib$(TARGET)-ios.a 23 | 24 | IOS_SIM_DEBUG := target/$(ARCH_IOS_SIM)/debug/lib$(TARGET).a 25 | IOS_SIMX86_DEBUG := target/$(ARCH_IOS_SIMX86)/debug/lib$(TARGET).a 26 | IOS_SIM_RELEASE := target/$(ARCH_IOS_SIM)/release/lib$(TARGET).a 27 | IOS_SIMX86_RELEASE := target/$(ARCH_IOS_SIMX86)/release/lib$(TARGET).a 28 | LIPO_SIM_DEBUG := target/debug/lib$(TARGET)-sim.a 29 | LIPO_SIM_RELEASE := target/release/lib$(TARGET)-sim.a 30 | 31 | define compile 32 | $(1): 33 | @echo Building $(TARGET) for $(3) 34 | cargo build $(2) --target $(3) 35 | endef 36 | 37 | define lipo 38 | $(1): $(2) 39 | @echo Performing lipo on $(2) 40 | lipo -create -output $(1) $(2) 41 | endef 42 | 43 | $(eval $(call compile,$(IOS_NATIVE_DEBUG),$(DEBUG_FLAGS),$(ARCH_IOS_NATIVE))) 44 | $(eval $(call compile,$(IOS_NATIVE_RELEASE),$(RELEASE_FLAGS),$(ARCH_IOS_NATIVE))) 45 | $(eval $(call compile,$(IOS_SIM_DEBUG),$(DEBUG_FLAGS),$(ARCH_IOS_SIM))) 46 | $(eval $(call compile,$(IOS_SIMX86_DEBUG),$(DEBUG_FLAGS),$(ARCH_IOS_SIMX86))) 47 | $(eval $(call compile,$(IOS_SIM_RELEASE),$(RELEASE_FLAGS),$(ARCH_IOS_SIM))) 48 | $(eval $(call compile,$(IOS_SIMX86_RELEASE),$(RELEASE_FLAGS),$(ARCH_IOS_SIMX86))) 49 | $(eval $(call lipo,$(LIPO_NATIVE_DEBUG),$(IOS_NATIVE_DEBUG))) 50 | $(eval $(call lipo,$(LIPO_NATIVE_RELEASE),$(IOS_NATIVE_RELEASE))) 51 | $(eval $(call lipo,$(LIPO_SIM_DEBUG),$(IOS_SIM_DEBUG) $(IOS_SIMX86_DEBUG))) 52 | $(eval $(call lipo,$(LIPO_SIM_RELEASE),$(IOS_SIM_RELEASE) $(IOS_SIMX86_RELEASE))) 53 | 54 | copy-debug: $(LIPO_NATIVE_DEBUG) $(LIPO_SIM_DEBUG) 55 | $(info Copying $^ -> ./) 56 | @cp $^ ./ 57 | 58 | copy-release: $(LIPO_NATIVE_RELEASE) $(LIPO_SIM_RELEASE) 59 | $(info Copying $^ -> ./) 60 | @cp $^ ./ 61 | 62 | build: copy-debug # You could use release if you want 63 | build-release: copy-release 64 | 65 | 66 | define remove-r 67 | @if [ -d $(1) ]; then echo Cleaning $(1); rm -r $(1); fi 68 | endef 69 | 70 | define remove 71 | @if [ -f $(1) ]; then echo Cleaning $(1); rm $(1); fi 72 | endef 73 | 74 | define make-xcframework 75 | $(1): $(2) 76 | @echo Building $(1) 77 | $(call remove-r,include) 78 | @mkdir -p include/$(TARGET) 79 | @cp $(TARGET).h module.modulemap include/$(TARGET)/ 80 | $(call remove-r,$(1)) 81 | @xcodebuild -create-xcframework \ 82 | -library $(3) \ 83 | -headers include/ \ 84 | -library $(4) \ 85 | -headers include/ \ 86 | -output $(1) 87 | endef 88 | 89 | $(eval $(call make-xcframework,$(TARGET).xcframework,build,$(IOS_NATIVE_DEBUG),$(IOS_SIM_DEBUG))) 90 | $(eval $(call make-xcframework,$(TARGET)-release.xcframework,build-release,$(IOS_NATIVE_RELEASE),$(IOS_SIM_RELEASE))) 91 | 92 | 93 | define make-xcframework-full # Idek if this ever worked lol 94 | $(1): $(2) 95 | @echo Building $(1) 96 | $(call remove-r,include) 97 | @mkdir -p include/$(TARGET) 98 | @cp $(TARGET).h module.modulemap include/$(TARGET)/ 99 | 100 | $(call remove-r,target/ios) 101 | @mkdir -p target/ios/$(TARGET).framework/Headers 102 | $(call remove-r,target/sim) 103 | @mkdir -p target/sim/$(TARGET).framework/Headers 104 | 105 | @cp -r include/$(TARGET)/*.* target/ios/$(TARGET).framework/Headers 106 | @libtool -static \ 107 | -o target/ios/$(TARGET).framework/$(TARGET) \ 108 | $(3) 109 | 110 | @cp -r include/$(TARGET)/*.* target/sim/$(TARGET).framework/Headers 111 | @xcrun -sdk iphonesimulator libtool -static \ 112 | -o target/sim/$(TARGET).framework/$(TARGET) \ 113 | $(4) 114 | 115 | $(call remove-r,$(TARGET).xcframework) 116 | @xcodebuild -create-xcframework \ 117 | -library target/sim/$(TARGET).framework \ 118 | -headers include/ \ 119 | -library target/ios/$(TARGET).framework \ 120 | -headers include/ \ 121 | -output $(1) 122 | 123 | endef 124 | 125 | $(eval $(call make-xcframework-full,$(TARGET)-full.xcframework,build,$(IOS_NATIVE_DEBUG),$(IOS_SIM_DEBUG))) 126 | $(eval $(call make-xcframework-full,$(TARGET)-full-release.xcframework,build-release,$(IOS_NATIVE_RELEASE),$(IOS_SIM_RELEASE))) 127 | 128 | 129 | zip: $(TARGET).xcframework 130 | $(call remove,$(TARGET).xcframework.zip) 131 | zip -r $(TARGET).xcframework.zip $< 132 | 133 | 134 | clean: 135 | $(call remove-r,include) 136 | $(call remove-r,target) 137 | $(call remove-r,$(TARGET).xcframework) 138 | $(call remove,$(TARGET).xcframework.zip) 139 | @rm -f ./*.a 140 | 141 | .PHONY := copy-debug copy-release build build-release clean zip 142 | -------------------------------------------------------------------------------- /src/lib.rs: -------------------------------------------------------------------------------- 1 | // Jackson Coxson 2 | 3 | use std::{ 4 | ffi::CStr, 5 | net::SocketAddrV4, 6 | str::FromStr, 7 | sync::{ 8 | mpsc::{channel, Sender}, 9 | Arc, Mutex, 10 | }, 11 | }; 12 | 13 | use boringtun::crypto::{X25519PublicKey, X25519SecretKey}; 14 | use libc::{c_char, c_int}; 15 | use log::error; 16 | use once_cell::sync::Lazy; 17 | 18 | static GLOBAL_HANDLE: Lazy>>> = Lazy::new(|| Mutex::new(None)); 19 | 20 | pub fn start_loopback(bind_addr: SocketAddrV4) -> Sender<()> { 21 | // Create the handle 22 | let (tx, rx) = channel(); 23 | 24 | // Read the keys to memory 25 | let server_private = include_str!("../keys/server_privatekey")[..44].to_string(); 26 | let client_public = include_str!("../keys/client_publickey")[..44].to_string(); 27 | 28 | let server_private = X25519SecretKey::from_str(&server_private).unwrap(); 29 | let client_public = X25519PublicKey::from_str(&client_public).unwrap(); 30 | 31 | let tun = boringtun::noise::Tunn::new( 32 | Arc::new(server_private), 33 | Arc::new(client_public), 34 | None, 35 | None, 36 | 0, 37 | None, 38 | ) 39 | .unwrap(); 40 | 41 | std::thread::spawn(move || { 42 | // Try and wait for the socket to become available 43 | let mut socket; 44 | loop { 45 | match std::net::UdpSocket::bind(bind_addr) { 46 | Ok(s) => socket = s, 47 | Err(e) => match e.kind() { 48 | std::io::ErrorKind::AddrInUse => { 49 | println!("EMP address in use, retrying..."); 50 | std::thread::sleep(std::time::Duration::from_millis(50)); 51 | continue; 52 | } 53 | _ => panic!(), 54 | }, 55 | }; 56 | break; 57 | } 58 | 59 | let mut ready = false; 60 | loop { 61 | // Attempt to read from the UDP socket 62 | match socket.set_read_timeout(Some(std::time::Duration::from_millis(5))) { 63 | Ok(_) => {} 64 | Err(e) => { 65 | println!("Unable to set UDP timeout: {:?}\nRebinding to socket", e); 66 | std::mem::drop(socket); 67 | 68 | // Wait until we can rebind to the socket 69 | loop { 70 | std::thread::sleep(std::time::Duration::from_secs(1)); 71 | socket = match std::net::UdpSocket::bind(bind_addr) { 72 | Ok(s) => s, 73 | Err(e) => { 74 | println!("Socket not dropped: {:?}", e); 75 | continue; 76 | } 77 | }; 78 | println!("Rebound to socket!"); 79 | break; 80 | } 81 | continue; 82 | } 83 | } 84 | let mut buf = [0_u8; 2048]; // we can use a small buffer because it will tell us if more is needed 85 | match socket.recv_from(&mut buf) { 86 | Ok((size, endpoint)) => { 87 | // Parse it with boringtun 88 | let mut unencrypted_buf = [0; 2176]; 89 | let p = 90 | tun.decapsulate(Some(endpoint.ip()), &buf[..size], &mut unencrypted_buf); 91 | 92 | match p { 93 | boringtun::noise::TunnResult::Done => { 94 | // literally nobody knows what to do with this 95 | if !ready { 96 | ready = true; 97 | println!("Ready!!"); 98 | } 99 | } 100 | boringtun::noise::TunnResult::Err(_) => { 101 | // don't care 102 | } 103 | boringtun::noise::TunnResult::WriteToNetwork(b) => { 104 | socket.send_to(b, endpoint).unwrap(); 105 | loop { 106 | let p = 107 | tun.decapsulate(Some(endpoint.ip()), &[], &mut unencrypted_buf); 108 | match p { 109 | boringtun::noise::TunnResult::WriteToNetwork(b) => { 110 | socket.send_to(b, endpoint).unwrap(); 111 | } 112 | _ => break, 113 | } 114 | } 115 | } 116 | boringtun::noise::TunnResult::WriteToTunnelV4(b, _addr) => { 117 | // Swap bytes 12-15 with 16-19 118 | b.swap(12, 16); 119 | b.swap(13, 17); 120 | b.swap(14, 18); 121 | b.swap(15, 19); 122 | 123 | let mut buf = [0_u8; 2048]; 124 | match tun.encapsulate(b, &mut buf) { 125 | boringtun::noise::TunnResult::WriteToNetwork(b) => { 126 | socket.send_to(b, endpoint).unwrap(); 127 | } 128 | _ => { 129 | println!("Unexpected result"); 130 | } 131 | } 132 | } 133 | boringtun::noise::TunnResult::WriteToTunnelV6(_b, _addr) => { 134 | panic!("IPv6 not supported"); 135 | } 136 | } 137 | } 138 | Err(e) => match e.kind() { 139 | std::io::ErrorKind::WouldBlock => {} 140 | std::io::ErrorKind::TimedOut => {} 141 | _ => { 142 | error!("Error receiving: {}", e); 143 | return; 144 | } 145 | }, 146 | } 147 | // Die if instructed or if the handle was destroyed 148 | match rx.try_recv() { 149 | Ok(_) => { 150 | println!("EMP instructed to die"); 151 | return; 152 | } 153 | Err(e) => match e { 154 | std::sync::mpsc::TryRecvError::Empty => continue, 155 | std::sync::mpsc::TryRecvError::Disconnected => { 156 | println!("Handle has been destroyed"); 157 | return; 158 | } 159 | }, 160 | } 161 | } 162 | }); 163 | 164 | tx 165 | } 166 | 167 | #[no_mangle] 168 | /// Starts your emotional damage 169 | /// # Arguments 170 | /// * `bind_addr` - The UDP socket to listen to 171 | /// # Returns 172 | /// A handle to stop further emotional damage. 173 | /// Null on failure 174 | /// # Safety 175 | /// Don't be stupid 176 | pub unsafe extern "C" fn start_emotional_damage(bind_addr: *const c_char) -> c_int { 177 | // Check if the proxy exists 178 | if GLOBAL_HANDLE.lock().unwrap().is_some() { 179 | println!("Proxy already exists, skipping"); 180 | return 0; 181 | } 182 | // Check the address 183 | if bind_addr.is_null() { 184 | return -1; 185 | } 186 | let address = CStr::from_ptr(bind_addr as *mut _); 187 | let address = match address.to_str() { 188 | Ok(address) => address, 189 | Err(_) => return -2, 190 | }; 191 | let address = match address.parse::() { 192 | Ok(address) => address, 193 | Err(_) => return -3, 194 | }; 195 | let handle = start_loopback(address); 196 | 197 | *GLOBAL_HANDLE.lock().unwrap() = Some(handle); 198 | 199 | 0 200 | } 201 | 202 | #[no_mangle] 203 | /// Stops further emotional damage 204 | /// # Arguments 205 | /// * `handle` - The coping mechanism generated by start_emotional_damage 206 | /// # Returns 207 | /// The knowledge of knowing that you couldn't handle failure 208 | /// # Safety 209 | /// Don't be stupid 210 | pub unsafe extern "C" fn stop_emotional_damage() { 211 | let sender = GLOBAL_HANDLE.lock().unwrap().clone(); 212 | if let Some(sender) = sender { 213 | if sender.send(()).is_ok() { 214 | // 215 | } 216 | } 217 | *GLOBAL_HANDLE.lock().unwrap() = None; 218 | } 219 | 220 | #[no_mangle] 221 | /// Blocks until Wireguard is ready 222 | /// # Arguments 223 | /// * `timeout` - The timeout in miliseconds to wait for Wireguard 224 | /// # Returns 225 | /// 0 on success, -1 on failure 226 | pub extern "C" fn test_emotional_damage(timeout: c_int) -> c_int { 227 | // Bind to the testing socket ASAP 228 | let mut testing_port = 3000_u16; 229 | let listener; 230 | loop { 231 | listener = match std::net::UdpSocket::bind(( 232 | std::net::Ipv4Addr::new(127, 0, 0, 1), 233 | testing_port, 234 | )) { 235 | Ok(l) => l, 236 | Err(e) => match e.kind() { 237 | std::io::ErrorKind::AddrInUse => { 238 | testing_port += 1; 239 | continue; 240 | } 241 | _ => { 242 | println!("Unable to bind to UDP socket"); 243 | return -1; 244 | } 245 | }, 246 | }; 247 | break; 248 | } 249 | listener 250 | .set_read_timeout(Some(std::time::Duration::from_millis(timeout as u64))) 251 | .unwrap(); 252 | 253 | std::thread::spawn(move || { 254 | let sender = 255 | std::net::UdpSocket::bind((std::net::Ipv4Addr::new(127, 0, 0, 1), testing_port + 1)) 256 | .unwrap(); 257 | for _ in 0..10 { 258 | if sender 259 | .send_to(&[69], (std::net::Ipv4Addr::new(127, 0, 0, 1), testing_port)) 260 | .is_ok() 261 | { 262 | // pass 263 | } 264 | std::thread::sleep(std::time::Duration::from_millis(1)); 265 | } 266 | }); 267 | 268 | let mut buf = [0_u8; 1]; 269 | match listener.recv(&mut buf) { 270 | Ok(_) => 0, 271 | Err(e) => { 272 | println!("Never received test data: {:?}", e); 273 | -1 274 | } 275 | } 276 | } 277 | 278 | #[cfg(test)] 279 | mod tests { 280 | use std::{ 281 | io::{Read, Write}, 282 | net::Ipv4Addr, 283 | str::FromStr, 284 | }; 285 | 286 | use super::*; 287 | 288 | #[test] 289 | fn pls_yeet() { 290 | let bind_addr = SocketAddrV4::from_str("127.0.0.1:51820").unwrap(); 291 | let _handle = start_loopback(bind_addr); 292 | 293 | let num = 100; 294 | let size = 100_000; 295 | 296 | // Create TCP listener 297 | let listener = std::net::TcpListener::bind("0.0.0.0:3000").unwrap(); 298 | let (send_ready, ready) = channel(); 299 | 300 | // A place to store the test data 301 | let tests = std::sync::Arc::new(std::sync::Mutex::new(Vec::new())); 302 | let spawn_tests = tests.clone(); 303 | 304 | std::thread::spawn(move || { 305 | let (mut stream, _) = listener.accept().unwrap(); 306 | 307 | // Create test data 308 | let mut local_tests = Vec::new(); 309 | for _ in 0..num { 310 | let mut test = Vec::new(); 311 | for _ in 0..size { 312 | test.push(rand::random::()); 313 | } 314 | tests.lock().unwrap().extend(test.clone()); 315 | local_tests.push(test); 316 | } 317 | 318 | // Wait until we're ready to send the test 319 | ready.recv().unwrap(); 320 | 321 | // Send the test data 322 | for test in local_tests { 323 | stream.write_all(&test).unwrap(); 324 | std::thread::sleep(std::time::Duration::from_nanos(1)); 325 | } 326 | }); 327 | 328 | let mut connector = 329 | std::net::TcpStream::connect(SocketAddrV4::new(Ipv4Addr::new(10, 7, 0, 1), 3000)) 330 | .unwrap(); 331 | send_ready.send(()).unwrap(); 332 | 333 | // Collect the test data 334 | let mut collected_tests: Vec = Vec::new(); 335 | 336 | let current_time = std::time::Instant::now(); 337 | 338 | loop { 339 | let mut buf = [0_u8; 2048]; 340 | match connector.read(&mut buf) { 341 | Ok(size) => { 342 | if size == 0 { 343 | break; 344 | } 345 | let buf = &buf[0..size]; 346 | collected_tests.extend(buf); 347 | } 348 | Err(_e) => { 349 | break; 350 | } 351 | } 352 | } 353 | 354 | println!("Elapsed time: {:?}", current_time.elapsed()); 355 | println!( 356 | "MB/s: {:?}", 357 | collected_tests.len() as f64 / current_time.elapsed().as_secs_f64() 358 | ); 359 | 360 | // Compare the two 361 | println!("Testing length"); 362 | assert_eq!(collected_tests.len(), spawn_tests.lock().unwrap().len()); 363 | println!("Testing contents"); 364 | assert_eq!(collected_tests, spawn_tests.lock().unwrap()[..]); 365 | 366 | println!("All tests passed"); 367 | } 368 | } 369 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU AFFERO GENERAL PUBLIC LICENSE 2 | Version 3, 19 November 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU Affero General Public License is a free, copyleft license for 11 | software and other kinds of works, specifically designed to ensure 12 | cooperation with the community in the case of network server software. 13 | 14 | The licenses for most software and other practical works are designed 15 | to take away your freedom to share and change the works. By contrast, 16 | our General Public Licenses are intended to guarantee your freedom to 17 | share and change all versions of a program--to make sure it remains free 18 | software for all its users. 19 | 20 | When we speak of free software, we are referring to freedom, not 21 | price. 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Remote Network Interaction; Use with the GNU General Public License. 541 | 542 | Notwithstanding any other provision of this License, if you modify the 543 | Program, your modified version must prominently offer all users 544 | interacting with it remotely through a computer network (if your version 545 | supports such interaction) an opportunity to receive the Corresponding 546 | Source of your version by providing access to the Corresponding Source 547 | from a network server at no charge, through some standard or customary 548 | means of facilitating copying of software. This Corresponding Source 549 | shall include the Corresponding Source for any work covered by version 3 550 | of the GNU General Public License that is incorporated pursuant to the 551 | following paragraph. 552 | 553 | Notwithstanding any other provision of this License, you have 554 | permission to link or combine any covered work with a work licensed 555 | under version 3 of the GNU General Public License into a single 556 | combined work, and to convey the resulting work. The terms of this 557 | License will continue to apply to the part which is the covered work, 558 | but the work with which it is combined will remain governed by version 559 | 3 of the GNU General Public License. 560 | 561 | 14. Revised Versions of this License. 562 | 563 | The Free Software Foundation may publish revised and/or new versions of 564 | the GNU Affero General Public License from time to time. Such new versions 565 | will be similar in spirit to the present version, but may differ in detail to 566 | address new problems or concerns. 567 | 568 | Each version is given a distinguishing version number. If the 569 | Program specifies that a certain numbered version of the GNU Affero General 570 | Public License "or any later version" applies to it, you have the 571 | option of following the terms and conditions either of that numbered 572 | version or of any later version published by the Free Software 573 | Foundation. If the Program does not specify a version number of the 574 | GNU Affero General Public License, you may choose any version ever published 575 | by the Free Software Foundation. 576 | 577 | If the Program specifies that a proxy can decide which future 578 | versions of the GNU Affero General Public License can be used, that proxy's 579 | public statement of acceptance of a version permanently authorizes you 580 | to choose that version for the Program. 581 | 582 | Later license versions may give you additional or different 583 | permissions. However, no additional obligations are imposed on any 584 | author or copyright holder as a result of your choosing to follow a 585 | later version. 586 | 587 | 15. Disclaimer of Warranty. 588 | 589 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 590 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 591 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 592 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 593 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 594 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 595 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 596 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 597 | 598 | 16. Limitation of Liability. 599 | 600 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 601 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 602 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 603 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 604 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 605 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 606 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 607 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 608 | SUCH DAMAGES. 609 | 610 | 17. Interpretation of Sections 15 and 16. 611 | 612 | If the disclaimer of warranty and limitation of liability provided 613 | above cannot be given local legal effect according to their terms, 614 | reviewing courts shall apply local law that most closely approximates 615 | an absolute waiver of all civil liability in connection with the 616 | Program, unless a warranty or assumption of liability accompanies a 617 | copy of the Program in return for a fee. 618 | 619 | END OF TERMS AND CONDITIONS 620 | 621 | How to Apply These Terms to Your New Programs 622 | 623 | If you develop a new program, and you want it to be of the greatest 624 | possible use to the public, the best way to achieve this is to make it 625 | free software which everyone can redistribute and change under these terms. 626 | 627 | To do so, attach the following notices to the program. It is safest 628 | to attach them to the start of each source file to most effectively 629 | state the exclusion of warranty; and each file should have at least 630 | the "copyright" line and a pointer to where the full notice is found. 631 | 632 | 633 | Copyright (C) 634 | 635 | This program is free software: you can redistribute it and/or modify 636 | it under the terms of the GNU Affero General Public License as published 637 | by the Free Software Foundation, either version 3 of the License, or 638 | (at your option) any later version. 639 | 640 | This program is distributed in the hope that it will be useful, 641 | but WITHOUT ANY WARRANTY; without even the implied warranty of 642 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 643 | GNU Affero General Public License for more details. 644 | 645 | You should have received a copy of the GNU Affero General Public License 646 | along with this program. If not, see . 647 | 648 | Also add information on how to contact you by electronic and paper mail. 649 | 650 | If your software can interact with users remotely through a computer 651 | network, you should also make sure that it provides a way for users to 652 | get its source. For example, if your program is a web application, its 653 | interface could display a "Source" link that leads users to an archive 654 | of the code. There are many ways you could offer source, and different 655 | solutions will be better for different programs; see section 13 for the 656 | specific requirements. 657 | 658 | You should also get your employer (if you work as a programmer) or school, 659 | if any, to sign a "copyright disclaimer" for the program, if necessary. 660 | For more information on this, and how to apply and follow the GNU AGPL, see 661 | . 662 | --------------------------------------------------------------------------------