Static builds that can install themselves

.cargo/config

@@ -3,12 +3,27 @@ linker = "arm-linux-gnueabihf-gcc"
 objcopy = { path = "arm-linux-gnueabihf-objcopy" }
 strip = { path = "arm-linux-gnueabihf-strip" }
 
+[target.armv7-unknown-linux-musleabihf]
+linker = "arm-linux-gnueabihf-gcc"
+objcopy = { path = "arm-linux-gnueabihf-objcopy" }
+strip = { path = "arm-linux-gnueabihf-strip" }
+
 [target.arm-unknown-linux-gnueabihf]
 linker = "arm-linux-gnueabihf-gcc"
 objcopy = { path = "arm-linux-gnueabihf-objcopy" }
 strip = { path = "arm-linux-gnueabihf-strip" }
 
+[target.arm-unknown-linux-musleabihf]
+linker = "arm-linux-gnueabihf-gcc"
+objcopy = { path = "arm-linux-gnueabihf-objcopy" }
+strip = { path = "arm-linux-gnueabihf-strip" }
+
 [target.aarch64-unknown-linux-gnu]
 linker = "aarch64-linux-gnu-gcc"
 objcopy = { path = "aarch64-linux-gnu-objcopy" }
 strip = { path = "aarch64-linux-gnu-strip" }
+
+[target.aarch64-unknown-linux-musl]
+linker = "aarch64-linux-gnu-gcc"
+objcopy = { path = "aarch64-linux-gnu-objcopy" }
+strip = { path = "aarch64-linux-gnu-strip" }

.github/workflows/package.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Run builder
         uses: ./.github/actions/build-deb
         with:
-          rust: '1.49.0'
+          rust: '1.50.0'
       - name: Archive artifacts
         uses: actions/upload-artifact@v1
         with:
@@ -31,7 +31,7 @@ jobs:
       - name: Run builder
         uses: ./.github/actions/build-rpm
         with:
-          rust: '1.49.0'
+          rust: '1.50.0'
       - name: Archive artifacts
         uses: actions/upload-artifact@v1
         with:

Cargo.toml

@@ -43,6 +43,7 @@ default = ["nat", "websocket", "wizard"]
 nat = ["igd"]
 websocket = ["tungstenite", "url"]
 wizard = ["dialoguer"]
+installer = []
 
 [[bench]]
 name = "criterion"

builder/Dockerfile-deb

@@ -11,6 +11,7 @@ RUN apt-get update \
     libc6-dev-i386 \
     gcc-5-multilib \
     asciidoctor \
+    musl musl-dev musl-tools \
  && rm -rf /var/cache/dpkg
 
 RUN ln -s asm-generic/ /usr/include/asm
@@ -19,7 +20,7 @@ RUN useradd -ms /bin/bash user
 USER user
 WORKDIR /home/user
 
-ENV RUST=1.49.0
+ENV RUST=1.50.0
 
 RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain ${RUST}
 
@@ -27,12 +28,18 @@ ENV PATH=/home/user/.cargo/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
 
 RUN rustup target add i686-unknown-linux-gnu \
  && rustup target add armv7-unknown-linux-gnueabihf \
- && rustup target add aarch64-unknown-linux-gnu
+ && rustup target add aarch64-unknown-linux-gnu \
+ && rustup target add x86_64-unknown-linux-musl \
+ && rustup target add i686-unknown-linux-musl \
+ && rustup target add armv7-unknown-linux-musleabihf \
+ && rustup target add aarch64-unknown-linux-musl
 
 RUN cargo install cargo-deb \
  && rm -rf /home/user/.cargo/{git,tmp,registry}
 
+ENV UPX_VER=3.96
+RUN curl https://github.com/upx/upx/releases/download/v${UPX_VER}/upx-${UPX_VER}-amd64_linux.tar.xz -Lf | tar -xJ --strip-components=1 -C /home/user/.cargo/bin
+
 VOLUME /home/user/.cargo/tmp
 VOLUME /home/user/.cargo/git
 VOLUME /home/user/.cargo/registry
-

builder/Dockerfile-rpm

@@ -7,7 +7,7 @@ RUN useradd -ms /bin/bash user
 USER user
 WORKDIR /home/user
 
-ENV RUST=1.49.0
+ENV RUST=1.50.0
 
 RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain ${RUST}
 

builder/build.sh

@@ -32,24 +32,44 @@ mkdir -p ../dist
 docker build --rm -f=Dockerfile-deb -t vpncloud-builder-deb .
 
 # x86_64 deb
+if ! [ -f ../dist/vpncloud_${DEB_VERSION}_amd64.deb ]; then
   docker_cmd deb 'cd code && cargo deb'
   cp $CACHE/deb/target/debian/vpncloud_${DEB_VERSION}_amd64.deb ../dist/vpncloud_${DEB_VERSION}_amd64.deb
+fi
 
-# i386 deb
-docker_cmd deb 'cd code && cargo deb --target i686-unknown-linux-gnu'
-cp $CACHE/deb/target/i686-unknown-linux-gnu/debian/vpncloud_${DEB_VERSION}_i386.deb ../dist/vpncloud_${DEB_VERSION}_i386.deb
+build_deb() {
+  ARCH=$1
+  TARGET=$2
+  if ! [ -f ../dist/vpncloud_${DEB_VERSION}_${ARCH}.deb ]; then
+    docker_cmd deb "cd code && cargo deb --target ${TARGET}"
+    cp $CACHE/deb/target/${TARGET}/debian/vpncloud_${DEB_VERSION}_${ARCH}.deb ../dist/vpncloud_${DEB_VERSION}_${ARCH}.deb
+  fi
+}
 
-# arm7hf deb
-docker_cmd deb 'cd code && cargo deb --target armv7-unknown-linux-gnueabihf'
-cp $CACHE/deb/target/armv7-unknown-linux-gnueabihf/debian/vpncloud_${DEB_VERSION}_armhf.deb ../dist/vpncloud_${DEB_VERSION}_armhf.deb
+build_deb i386 i686-unknown-linux-gnu
+build_deb armhf armv7-unknown-linux-gnueabihf
+build_deb arm64 aarch64-unknown-linux-gnu
 
-# aarch64 deb
-docker_cmd deb 'cd code && cargo deb --target aarch64-unknown-linux-gnu'
-cp $CACHE/deb/target/aarch64-unknown-linux-gnu/debian/vpncloud_${DEB_VERSION}_arm64.deb ../dist/vpncloud_${DEB_VERSION}_arm64.deb
+
+build_static() {
+  ARCH=$1
+  TARGET=$2
+  if ! [ -f ../dist/vpncloud_${VERSION}_static_${ARCH} ]; then
+    docker_cmd deb "cd code && cargo build --release --features installer --target ${TARGET} && upx --lzma target/${TARGET}/release/vpncloud"
+    cp $CACHE/deb/target/${TARGET}/release/vpncloud ../dist/vpncloud_${VERSION}_static_${ARCH}
+  fi
+}
+
+build_static amd64 x86_64-unknown-linux-musl
+build_static i386 i686-unknown-linux-gnu
+build_static armhf armv7-unknown-linux-musleabihf
+#build_static arm64 aarch64-unknown-linux-musl # fails for unknown reason
 
 
 docker build --rm -f=Dockerfile-rpm -t vpncloud-builder-rpm .
 
+if ! [ -f ../dist/vpncloud_${RPM_VERSION}.x86_64.rpm ]; then
   # x86_64 rpm
   docker_cmd rpm 'cd code && cargo rpm build'
   cp $CACHE/rpm/target/release/rpmbuild/RPMS/x86_64/vpncloud-${RPM_VERSION}.x86_64.rpm ../dist/vpncloud_${RPM_VERSION}.x86_64.rpm
+fi

src/config.rs

@@ -573,6 +573,14 @@ pub enum Command {
         /// Name of the network
         #[structopt(short, long)]
         name: Option<String>
+    },
+
+    /// Install required utility files
+    #[cfg(feature = "installer")]
+    Install {
+        /// Remove installed files again
+        #[structopt(long)]
+        uninstall: bool
     }
 }
 

src/installer.rs

@@ -0,0 +1,49 @@
+use crate::error::Error;
+use std::{
+    env,
+    fs::{self, File},
+    io::Write,
+    os::unix::fs::PermissionsExt
+};
+
+const MANPAGE: &[u8] = include_bytes!("../target/vpncloud.1.gz");
+const SERVICE_FILE: &[u8] = include_bytes!("../assets/vpncloud@.service");
+const WS_PROXY_SERVICE_FILE: &[u8] = include_bytes!("../assets/vpncloud-wsproxy.service");
+const EXAMPLE_CONFIG: &[u8] = include_bytes!("../assets/example.net.disabled");
+
+pub fn install() -> Result<(), Error> {
+    env::current_exe()
+        .and_then(|p| fs::copy(p, "/usr/bin/vpncloud"))
+        .map_err(|e| Error::FileIo("Failed to copy binary", e))?;
+    fs::set_permissions("/usr/bin/vpncloud", fs::Permissions::from_mode(755))
+        .map_err(|e| Error::FileIo("Failed to set permissions for binary", e))?;
+    fs::create_dir_all("/etc/vpncloud").map_err(|e| Error::FileIo("Failed to create config folder", e))?;
+    fs::set_permissions("/etc/vpncloud", fs::Permissions::from_mode(600))
+        .map_err(|e| Error::FileIo("Failed to set permissions for config folder", e))?;
+    File::create("/etc/vpncloud/example.net.disabled")
+        .and_then(|mut f| f.write_all(EXAMPLE_CONFIG))
+        .map_err(|e| Error::FileIo("Failed to create example config", e))?;
+    File::create("/usr/share/man/man1/vpncloud.1.gz")
+        .and_then(|mut f| f.write_all(MANPAGE))
+        .map_err(|e| Error::FileIo("Failed to create manpage", e))?;
+    File::create("/lib/systemd/system/vpncloud@.service")
+        .and_then(|mut f| f.write_all(SERVICE_FILE))
+        .map_err(|e| Error::FileIo("Failed to create service file", e))?;
+    File::create("/lib/systemd/system/vpncloud-wsproxy.service")
+        .and_then(|mut f| f.write_all(WS_PROXY_SERVICE_FILE))
+        .map_err(|e| Error::FileIo("Failed to create wsporxy service file", e))?;
+    info!("Install successful");
+    Ok(())
+}
+
+pub fn uninstall() -> Result<(), Error> {
+    fs::remove_file("/etc/vpncloud/example.net.disabled").map_err(|e| Error::FileIo("Failed to remove binary", e))?;
+    fs::remove_file("/usr/share/man/man1/vpncloud.1.gz").map_err(|e| Error::FileIo("Failed to remove manpage", e))?;
+    fs::remove_file("/lib/systemd/system/vpncloud@.service")
+        .map_err(|e| Error::FileIo("Failed to remove service file", e))?;
+    fs::remove_file("/lib/systemd/system/vpncloud-wsproxy.service")
+        .map_err(|e| Error::FileIo("Failed to remove wsproxy service file", e))?;
+    fs::remove_file("/usr/bin/vpncloud").map_err(|e| Error::FileIo("Failed to remove binary", e))?;
+    info!("Uninstall successful");
+    Ok(())
+}

src/main.rs

@@ -29,6 +29,7 @@ pub mod traffic;
 pub mod types;
 #[cfg(feature = "wizard")] pub mod wizard;
 #[cfg(feature = "websocket")] pub mod wsproxy;
+#[cfg(feature = "installer")] pub mod installer;
 
 use structopt::StructOpt;
 
@@ -282,6 +283,14 @@ fn main() {
             Command::Config { name } => {
                 try_fail!(wizard::configure(name), "Wizard failed: {}");
             }
+            #[cfg(feature = "installer")]
+            Command::Install { uninstall } => {
+                if uninstall {
+                    try_fail!(installer::uninstall(), "Uninstall failed: {}");
+                } else {
+                    try_fail!(installer::install(), "Install failed: {}");
+                }
+            }
         }
         return
     }