fix: Cleanup temporary file after feeding auth data

Related: #366

.github/workflows/build.yaml

@@ -25,7 +25,7 @@ jobs:
         id: set-matrix
         run: |
           if [[ "${{ github.ref }}" == "refs/tags/"* ]]; then
-            echo 'matrix=[{"runner": "ubuntu-latest", "arch": "amd64"}, {"runner": "arm64", "arch": "arm64"]' >> $GITHUB_OUTPUT
+            echo 'matrix=[{"runner": "ubuntu-latest", "arch": "amd64"}, {"runner": "arm64", "arch": "arm64"}]' >> $GITHUB_OUTPUT
           else
             echo 'matrix=[{"runner": "ubuntu-latest", "arch": "amd64"}]' >> $GITHUB_OUTPUT
           fi
@@ -68,7 +68,8 @@ jobs:
     - tarball
     strategy:
       matrix:
-        os: ${{fromJson(needs.setup-matrix.outputs.matrix)}}
+        # Only build gp on amd64, as the arm64 package will be built in release.yaml
+        os: [{runner: ubuntu-latest, arch: amd64}]
         package: [deb, rpm, pkg, binary]
     runs-on: ${{ matrix.os.runner }}
     name: build-gp (${{ matrix.package }}, ${{ matrix.os.arch }})
@@ -182,7 +183,7 @@ jobs:
         gh -R "$REPO" release create $RELEASE_TAG \
           --title "$RELEASE_TAG" \
           --notes "$NOTES" \
-          --target ${{ github.ref }} \
+          ${{ github.ref == 'refs/heads/dev' && '--target dev' || '' }} \
           ${{ github.ref == 'refs/heads/dev' && '--prerelease' || '' }} \
           gh-release/artifact-source/* \
           gh-release/artifact-gpgui-*/*

.vscode/settings.json

@@ -1,6 +1,7 @@
 {
     "cSpell.words": [
         "authcookie",
+        "badssl",
         "bincode",
         "chacha",
         "clientos",
@@ -25,7 +26,9 @@
         "LOGNAME",
         "oneshot",
         "openconnect",
+        "pkcs",
         "pkexec",
+        "pkey",
         "Prelogin",
         "prelogon",
         "prelogonuserauthcookie",
@@ -35,6 +38,7 @@
         "rspc",
         "servercert",
         "specta",
+        "sslkey",
         "sysinfo",
         "tanstack",
         "tauri",

Cargo.lock

@@ -252,6 +252,12 @@ version = "0.21.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "35636a1494ede3b646cc98f74f8e62c773a38a659ebc777a2cf26b9b74171df9"
 
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -564,7 +570,7 @@ dependencies = [
 
 [[package]]
 name = "common"
-version = "2.1.2"
+version = "2.3.1"
 dependencies = [
  "is_executable",
 ]
@@ -1430,7 +1436,7 @@ dependencies = [
 
 [[package]]
 name = "gpapi"
-version = "2.1.2"
+version = "2.3.1"
 dependencies = [
  "anyhow",
  "base64 0.21.5",
@@ -1440,6 +1446,8 @@ dependencies = [
  "log",
  "md5",
  "open",
+ "openssl",
+ "pem",
  "redact-engine",
  "regex",
  "reqwest",
@@ -1462,7 +1470,7 @@ dependencies = [
 
 [[package]]
 name = "gpauth"
-version = "2.1.2"
+version = "2.3.1"
 dependencies = [
  "anyhow",
  "clap",
@@ -1483,7 +1491,7 @@ dependencies = [
 
 [[package]]
 name = "gpclient"
-version = "2.1.2"
+version = "2.3.1"
 dependencies = [
  "anyhow",
  "clap",
@@ -1505,7 +1513,7 @@ dependencies = [
 
 [[package]]
 name = "gpgui-helper"
-version = "2.1.2"
+version = "2.3.1"
 dependencies = [
  "anyhow",
  "clap",
@@ -1523,7 +1531,7 @@ dependencies = [
 
 [[package]]
 name = "gpservice"
-version = "2.1.2"
+version = "2.3.1"
 dependencies = [
  "anyhow",
  "axum",
@@ -1599,9 +1607,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.24"
+version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb2c4422095b67ee78da96fbb51a4cc413b3b25883c7717ff7ca1ab31022c9c9"
+checksum = "81fe527a889e1532da5c525686d96d4c2e74cdd345badf8dfef9f6b39dd5f5e8"
 dependencies = [
  "bytes",
  "fnv",
@@ -1618,9 +1626,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.4.2"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31d030e59af851932b72ceebadf4a2b5986dba4c3b99dd2493f8273a0f151943"
+checksum = "816ec7294445779408f36fe57bc5b7fc1cf59664059096c65f905c1c61f58069"
 dependencies = [
  "bytes",
  "fnv",
@@ -1787,7 +1795,7 @@ dependencies = [
  "futures-channel",
  "futures-core",
  "futures-util",
- "h2 0.3.24",
+ "h2 0.3.26",
  "http 0.2.11",
  "http-body 0.4.6",
  "httparse",
@@ -1810,7 +1818,7 @@ dependencies = [
  "bytes",
  "futures-channel",
  "futures-util",
- "h2 0.4.2",
+ "h2 0.4.4",
  "http 1.0.0",
  "http-body 1.0.0",
  "httparse",
@@ -2537,7 +2545,7 @@ dependencies = [
 
 [[package]]
 name = "openconnect"
-version = "2.1.2"
+version = "2.3.1"
 dependencies = [
  "cc",
  "common",
@@ -2670,6 +2678,16 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8835116a5c179084a830efb3adc117ab007512b535bc1a21c991d3b32a6b44dd"
 
+[[package]]
+name = "pem"
+version = "3.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e459365e590736a54c3fa561947c84837534b8e9af6fc5bf781307e82658fae"
+dependencies = [
+ "base64 0.22.1",
+ "serde",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.1"
@@ -3167,7 +3185,7 @@ dependencies = [
  "encoding_rs",
  "futures-core",
  "futures-util",
- "h2 0.3.24",
+ "h2 0.3.26",
  "http 0.2.11",
  "http-body 0.4.6",
  "hyper 0.14.28",
@@ -4606,6 +4624,12 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasite"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8dad83b4f25e74f184f64c43b150b91efe7647395b42289f38e50566d82855b"
+
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.89"
@@ -4782,11 +4806,12 @@ dependencies = [
 
 [[package]]
 name = "whoami"
-version = "1.4.1"
+version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22fc3756b8a9133049b26c7f61ab35416c130e8c09b660f5b3958b446f52cc50"
+checksum = "a44ab49fad634e88f55bf8f9bb3abd2f27d7204172a112c7c9987e01c1c94ea9"
 dependencies = [
- "wasm-bindgen",
+ "redox_syscall",
+ "wasite",
  "web-sys",
 ]
 

Cargo.toml

@@ -5,7 +5,7 @@ members = ["crates/*", "apps/gpclient", "apps/gpservice", "apps/gpauth", "apps/g
 
 [workspace.package]
 rust-version = "1.70"
-version = "2.1.2"
+version = "2.3.1"
 authors = ["Kevin Yue <k3vinyue@gmail.com>"]
 homepage = "https://github.com/yuezk/GlobalProtect-openconnect"
 edition = "2021"
@@ -22,6 +22,8 @@ is_executable = "1.0"
 log = "0.4"
 regex = "1"
 reqwest = { version = "0.11", features = ["native-tls-vendored", "json"] }
+openssl = "0.10"
+pem = "3"
 roxmltree = "0.18"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"

README.md

@@ -13,6 +13,7 @@ A GUI for GlobalProtect VPN, based on OpenConnect, supports the SSO authenticati
 - [x] Support both SSO and non-SSO authentication
 - [x] Support the FIDO2 authentication (e.g., YubiKey)
 - [x] Support authentication using default browser
+- [x] Support client certificate authentication
 - [x] Support multiple portals
 - [x] Support gateway selection
 - [x] Support connect gateway directly
@@ -43,6 +44,12 @@ Options:
 See 'gpclient help <command>' for more information on a specific command.
 ```
 
+To use the default browser for authentication with the CLI version, you need to use the following command:
+
+```bash
+sudo -E gpclient connect --default-browser <portal>
+```
+
 ### GUI
 
 The GUI version is also available after you installed it. You can launch it from the application menu or run `gpclient launch-gui` in the terminal.
@@ -55,7 +62,7 @@ The GUI version is also available after you installed it. You can launch it from
 
 ### Debian/Ubuntu based distributions
 
-#### Install from PPA
+#### Install from PPA (Ubuntu 18.04 and later, except 24.04)
 
 ```
 sudo apt-get install gir1.2-gtk-3.0 gir1.2-webkit2-4.0
@@ -68,12 +75,29 @@ sudo apt-get install globalprotect-openconnect
 >
 > For Linux Mint, you might need to import the GPG key with: `sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 7937C393082992E5D6E4A60453FC26B43838D761` if you encountered an error `gpg: keyserver receive failed: General error`.
 
-#### Install from deb package
+#### **Ubuntu 24.04 and later**
 
-Download the latest deb package from [releases](https://github.com/yuezk/GlobalProtect-openconnect/releases) page. Then install it with `dpkg`:
+The `libwebkit2gtk-4.0-37` package was [removed](https://bugs.launchpad.net/ubuntu/+source/webkit2gtk/+bug/2061914) from its repo, before [the issue](https://github.com/yuezk/GlobalProtect-openconnect/issues/351) gets resolved, you need to install them manually:
 
 ```bash
-sudo dpkg -i globalprotect-openconnect_*.deb
+wget http://launchpadlibrarian.net/704701349/libwebkit2gtk-4.0-37_2.43.3-1_amd64.deb
+wget http://launchpadlibrarian.net/704701345/libjavascriptcoregtk-4.0-18_2.43.3-1_amd64.deb
+
+sudo dpkg --install *.deb
+```
+
+And the latest package is not available in the PPA, you can follow the [Install from deb package](#install-from-deb-package) section to install the latest package.
+
+#### **Ubuntu 18.04**
+
+The latest package is not available in the PPA either, but you still needs to add the `ppa:yuezk/globalprotect-openconnect` repo beforehand to use the required `openconnect` package. Then you can follow the [Install from deb package](#install-from-deb-package) section to install the latest package.
+
+#### Install from deb package
+
+Download the latest deb package from [releases](https://github.com/yuezk/GlobalProtect-openconnect/releases) page. Then install it with `apt`:
+
+```bash
+sudo apt install --fix-broken globalprotect-openconnect_*.deb
 ```
 
 ### Arch Linux / Manjaro
@@ -120,6 +144,30 @@ Download the latest RPM package from [releases](https://github.com/yuezk/GlobalP
 ```bash
 sudo rpm -i globalprotect-openconnect-*.rpm
 ```
+### Gentoo
+
+Install from the ```rios``` or ```slonko``` overlays.  Example using rios:
+
+#### 1. Enable the overlay
+```
+sudo eselect repository enable rios
+```
+
+#### 2. Sync with the repository
+
+  - If you have eix installed, use it:
+```
+sudo eix-sync
+```
+  - Otherwise, use:
+```
+sudo emerge --sync
+```
+
+#### 3. Install
+
+```sudo emerge globalprotect-openconnect```
+
 
 ### Other distributions
 
@@ -151,6 +199,8 @@ You can also build the client from source, steps are as follows:
 
 1. How to deal with error `Secure Storage not ready`
 
+   Try upgrade the client to `2.2.0` or later, which will use a file-based storage as a fallback.
+
    You need to install the `gnome-keyring` package, and restart the system (See [#321](https://github.com/yuezk/GlobalProtect-openconnect/issues/321), [#316](https://github.com/yuezk/GlobalProtect-openconnect/issues/316)).
 
 2. How to deal with error `(gpauth:18869): Gtk-WARNING **: 10:33:37.566: cannot open display:`

apps/gpauth/Cargo.toml

@@ -8,7 +8,11 @@ license.workspace = true
 tauri-build = { version = "1.5", features = [] }
 
 [dependencies]
-gpapi = { path = "../../crates/gpapi", features = ["tauri", "clap"] }
+gpapi = { path = "../../crates/gpapi", features = [
+  "tauri",
+  "clap",
+  "browser-auth",
+] }
 anyhow.workspace = true
 clap.workspace = true
 env_logger.workspace = true

apps/gpauth/src/auth_window.rs

@@ -366,17 +366,14 @@ fn read_auth_data_from_html(html: &str) -> Result<SamlAuthData, AuthDataParseErr
     return Err(AuthDataParseError::Invalid);
   }
 
-  match SamlAuthData::from_html(html) {
+  SamlAuthData::from_html(html).or_else(|err| {
-    Ok(auth_data) => Ok(auth_data),
+    if let Some(gpcallback) = extract_gpcallback(html) {
-    Err(err) => {
+      info!("Found gpcallback from html...");
-      if let Some(gpcallback) = extract_gpcallback(html) {
+      SamlAuthData::from_gpcallback(&gpcallback)
-        info!("Found gpcallback from html...");
+    } else {
-        SamlAuthData::from_gpcallback(&gpcallback)
+      Err(err)
-      } else {
-        Err(err)
-      }
     }
-  }
+  })
 }
 
 fn extract_gpcallback(html: &str) -> Option<String> {

apps/gpauth/src/cli.rs

@@ -3,6 +3,7 @@ use gpapi::{
   auth::{SamlAuthData, SamlAuthResult},
   clap::args::Os,
   gp_params::{ClientOs, GpParams},
+  process::browser_authenticator::BrowserAuthenticator,
   utils::{normalize_server, openssl},
   GP_USER_AGENT,
 };
@@ -37,6 +38,8 @@ struct Cli {
   ignore_tls_errors: bool,
   #[arg(long)]
   clean: bool,
+  #[arg(long)]
+  default_browser: bool,
 }
 
 impl Cli {
@@ -56,6 +59,15 @@ impl Cli {
       None => portal_prelogin(&self.server, &gp_params).await?,
     };
 
+    if self.default_browser {
+      let browser_auth = BrowserAuthenticator::new(&saml_request);
+      browser_auth.authenticate()?;
+
+      info!("Please continue the authentication process in the default browser");
+
+      return Ok(());
+    }
+
     self.saml_request.replace(saml_request);
 
     let app = create_app(self.clone())?;

apps/gpclient/src/connect.rs

@@ -1,4 +1,4 @@
-use std::{fs, sync::Arc};
+use std::{cell::RefCell, fs, sync::Arc};
 
 use clap::Args;
 use common::vpn_utils::find_csd_wrapper;
@@ -6,21 +6,22 @@ use gpapi::{
   clap::args::Os,
   credential::{Credential, PasswordCredential},
   error::PortalError,
-  gateway::gateway_login,
+  gateway::{gateway_login, GatewayLogin},
   gp_params::{ClientOs, GpParams},
   portal::{prelogin, retrieve_config, Prelogin},
   process::{
     auth_launcher::SamlAuthLauncher,
     users::{get_non_root_user, get_user_by_name},
   },
-  utils::shutdown_signal,
+  utils::{request::RequestIdentityError, shutdown_signal},
   GP_USER_AGENT,
 };
 use inquire::{Password, PasswordDisplayMode, Select, Text};
 use log::info;
 use openconnect::Vpn;
+use tokio::{io::AsyncReadExt, net::TcpListener};
 
-use crate::{cli::SharedArgs, GP_CLIENT_LOCK_FILE};
+use crate::{cli::SharedArgs, GP_CLIENT_LOCK_FILE, GP_CLIENT_PORT_FILE};
 
 #[derive(Args)]
 pub(crate) struct ConnectArgs {
@@ -32,6 +33,8 @@ pub(crate) struct ConnectArgs {
   user: Option<String>,
   #[arg(long, short, help = "The VPNC script to use")]
   script: Option<String>,
+  #[arg(long, help = "Connect the server as a gateway, instead of a portal")]
+  as_gateway: bool,
 
   #[arg(
     long,
@@ -39,14 +42,29 @@ pub(crate) struct ConnectArgs {
   )]
   hip: bool,
 
+  #[arg(
+    short,
+    long,
+    help = "Use SSL client certificate file in pkcs#8 (.pem) or pkcs#12 (.p12, .pfx) format"
+  )]
+  certificate: Option<String>,
+  #[arg(short = 'k', long, help = "Use SSL private key file in pkcs#8 (.pem) format")]
+  sslkey: Option<String>,
+  #[arg(short = 'p', long, help = "The key passphrase of the private key")]
+  key_password: Option<String>,
+
   #[arg(long, help = "Same as the '--csd-user' option in the openconnect command")]
   csd_user: Option<String>,
 
   #[arg(long, help = "Same as the '--csd-wrapper' option in the openconnect command")]
   csd_wrapper: Option<String>,
 
+  #[arg(long, default_value = "300", help = "Reconnection retry timeout in seconds")]
+  reconnect_timeout: u32,
   #[arg(short, long, help = "Request MTU from server (legacy servers only)")]
   mtu: Option<u32>,
+  #[arg(long, help = "Do not ask for IPv6 connectivity")]
+  disable_ipv6: bool,
 
   #[arg(long, default_value = GP_USER_AGENT, help = "The user agent to use")]
   user_agent: String,
@@ -58,6 +76,8 @@ pub(crate) struct ConnectArgs {
   hidpi: bool,
   #[arg(long, help = "Do not reuse the remembered authentication cookie")]
   clean: bool,
+  #[arg(long, help = "Use the default browser to authenticate")]
+  default_browser: bool,
 }
 
 impl ConnectArgs {
@@ -77,11 +97,16 @@ impl ConnectArgs {
 pub(crate) struct ConnectHandler<'a> {
   args: &'a ConnectArgs,
   shared_args: &'a SharedArgs,
+  latest_key_password: RefCell<Option<String>>,
 }
 
 impl<'a> ConnectHandler<'a> {
   pub(crate) fn new(args: &'a ConnectArgs, shared_args: &'a SharedArgs) -> Self {
-    Self { args, shared_args }
+    Self {
+      args,
+      shared_args,
+      latest_key_password: Default::default(),
+    }
   }
 
   fn build_gp_params(&self) -> GpParams {
@@ -90,11 +115,52 @@ impl<'a> ConnectHandler<'a> {
       .client_os(ClientOs::from(&self.args.os))
       .os_version(self.args.os_version())
       .ignore_tls_errors(self.shared_args.ignore_tls_errors)
+      .certificate(self.args.certificate.clone())
+      .sslkey(self.args.sslkey.clone())
+      .key_password(self.latest_key_password.borrow().clone())
       .build()
   }
 
   pub(crate) async fn handle(&self) -> anyhow::Result<()> {
+    self.latest_key_password.replace(self.args.key_password.clone());
+
+    loop {
+      let Err(err) = self.handle_impl().await else {
+        return Ok(());
+      };
+
+      let Some(root_cause) = err.root_cause().downcast_ref::<RequestIdentityError>() else {
+        return Err(err);
+      };
+
+      match root_cause {
+        RequestIdentityError::NoKey => {
+          eprintln!("ERROR: No private key found in the certificate file");
+          eprintln!("ERROR: Please provide the private key file using the `-k` option");
+          return Ok(());
+        }
+        RequestIdentityError::NoPassphrase(cert_type) | RequestIdentityError::DecryptError(cert_type) => {
+          // Decrypt the private key error, ask for the key password
+          let message = format!("Enter the {} passphrase:", cert_type);
+          let password = Password::new(&message)
+            .without_confirmation()
+            .with_display_mode(PasswordDisplayMode::Masked)
+            .prompt()?;
+
+          self.latest_key_password.replace(Some(password));
+        }
+      }
+    }
+  }
+
+  pub(crate) async fn handle_impl(&self) -> anyhow::Result<()> {
     let server = self.args.server.as_str();
+    let as_gateway = self.args.as_gateway;
+
+    if as_gateway {
+      info!("Treating the server as a gateway");
+      return self.connect_gateway_with_prelogin(server).await;
+    }
 
     let Err(err) = self.connect_portal_with_prelogin(server).await else {
       return Ok(());
@@ -103,10 +169,15 @@ impl<'a> ConnectHandler<'a> {
     info!("Failed to connect portal with prelogin: {}", err);
     if err.root_cause().downcast_ref::<PortalError>().is_some() {
       info!("Trying the gateway authentication workflow...");
-      return self.connect_gateway_with_prelogin(server).await;
+      self.connect_gateway_with_prelogin(server).await?;
-    }
 
-    Err(err)
+      eprintln!("\nNOTE: the server may be a gateway, not a portal.");
+      eprintln!("NOTE: try to use the `--as-gateway` option if you were authenticated twice.");
+
+      Ok(())
+    } else {
+      Err(err)
+    }
   }
 
   async fn connect_portal_with_prelogin(&self, portal: &str) -> anyhow::Result<()> {
@@ -141,7 +212,7 @@ impl<'a> ConnectHandler<'a> {
     let gateway = selected_gateway.server();
     let cred = portal_config.auth_cookie().into();
 
-    let cookie = match gateway_login(gateway, &cred, &gp_params).await {
+    let cookie = match self.login_gateway(gateway, &cred, &gp_params).await {
       Ok(cookie) => cookie,
       Err(err) => {
         info!("Gateway login failed: {}", err);
@@ -161,11 +232,28 @@ impl<'a> ConnectHandler<'a> {
     let prelogin = prelogin(gateway, &gp_params).await?;
     let cred = self.obtain_credential(&prelogin, gateway).await?;
 
-    let cookie = gateway_login(gateway, &cred, &gp_params).await?;
+    let cookie = self.login_gateway(gateway, &cred, &gp_params).await?;
 
     self.connect_gateway(gateway, &cookie).await
   }
 
+  async fn login_gateway(&self, gateway: &str, cred: &Credential, gp_params: &GpParams) -> anyhow::Result<String> {
+    let mut gp_params = gp_params.clone();
+
+    loop {
+      match gateway_login(gateway, cred, &gp_params).await? {
+        GatewayLogin::Cookie(cookie) => return Ok(cookie),
+        GatewayLogin::Mfa(message, input_str) => {
+          let otp = Text::new(&message).prompt()?;
+          gp_params.set_input_str(&input_str);
+          gp_params.set_otp(&otp);
+
+          info!("Retrying gateway login with MFA...");
+        }
+      }
+    }
+  }
+
   async fn connect_gateway(&self, gateway: &str, cookie: &str) -> anyhow::Result<()> {
     let mtu = self.args.mtu.unwrap_or(0);
     let csd_uid = get_csd_uid(&self.args.csd_user)?;
@@ -180,9 +268,14 @@ impl<'a> ConnectHandler<'a> {
     let vpn = Vpn::builder(gateway, cookie)
       .script(self.args.script.clone())
       .user_agent(self.args.user_agent.clone())
+      .certificate(self.args.certificate.clone())
+      .sslkey(self.args.sslkey.clone())
+      .key_password(self.latest_key_password.borrow().clone())
       .csd_uid(csd_uid)
       .csd_wrapper(csd_wrapper)
+      .reconnect_timeout(self.args.reconnect_timeout)
       .mtu(mtu)
+      .disable_ipv6(self.args.disable_ipv6)
       .build()?;
 
     let vpn = Arc::new(vpn);
@@ -210,7 +303,9 @@ impl<'a> ConnectHandler<'a> {
 
     match prelogin {
       Prelogin::Saml(prelogin) => {
-        SamlAuthLauncher::new(&self.args.server)
+        let use_default_browser = prelogin.support_default_browser() && self.args.default_browser;
+
+        let cred = SamlAuthLauncher::new(&self.args.server)
           .gateway(is_gateway)
           .saml_request(prelogin.saml_request())
           .user_agent(&self.args.user_agent)
@@ -220,8 +315,21 @@ impl<'a> ConnectHandler<'a> {
           .fix_openssl(self.shared_args.fix_openssl)
           .ignore_tls_errors(self.shared_args.ignore_tls_errors)
           .clean(self.args.clean)
+          .default_browser(use_default_browser)
           .launch()
-          .await
+          .await?;
+
+        if let Some(cred) = cred {
+          return Ok(cred);
+        }
+
+        if !use_default_browser {
+          // This should never happen
+          unreachable!("SAML authentication failed without using the default browser");
+        }
+
+        info!("Waiting for the browser authentication to complete...");
+        wait_credentials().await
       }
       Prelogin::Standard(prelogin) => {
         let prefix = if is_gateway { "Gateway" } else { "Portal" };
@@ -244,6 +352,27 @@ impl<'a> ConnectHandler<'a> {
   }
 }
 
+async fn wait_credentials() -> anyhow::Result<Credential> {
+  // Start a local server to receive the browser authentication data
+  let listener = TcpListener::bind("127.0.0.1:0").await?;
+  let port = listener.local_addr()?.port();
+
+  // Write the port to a file
+  fs::write(GP_CLIENT_PORT_FILE, port.to_string())?;
+
+  info!("Listening authentication data on port {}", port);
+  let (mut socket, _) = listener.accept().await?;
+
+  info!("Received the browser authentication data from the socket");
+  let mut data = String::new();
+  socket.read_to_string(&mut data).await?;
+
+  // Remove the port file
+  fs::remove_file(GP_CLIENT_PORT_FILE)?;
+
+  Credential::from_gpcallback(&data)
+}
+
 fn write_pid_file() {
   let pid = std::process::id();
 

apps/gpclient/src/launch_gui.rs

@@ -1,4 +1,4 @@
-use std::{collections::HashMap, fs, path::PathBuf};
+use std::{collections::HashMap, env::temp_dir, fs, path::PathBuf};
 
 use clap::Args;
 use directories::ProjectDirs;
@@ -7,6 +7,9 @@ use gpapi::{
   utils::{endpoint::http_endpoint, env_file, shutdown_signal},
 };
 use log::info;
+use tokio::io::AsyncWriteExt;
+
+use crate::GP_CLIENT_PORT_FILE;
 
 #[derive(Args)]
 pub(crate) struct LaunchGuiArgs {
@@ -78,6 +81,16 @@ impl<'a> LaunchGuiHandler<'a> {
 }
 
 async fn feed_auth_data(auth_data: &str) -> anyhow::Result<()> {
+  let _ = tokio::join!(feed_auth_data_gui(auth_data), feed_auth_data_cli(auth_data));
+
+  // Cleanup the temporary file
+  let html_file = temp_dir().join("gpauth.html");
+  let _ = std::fs::remove_file(html_file);
+
+  Ok(())
+}
+
+async fn feed_auth_data_gui(auth_data: &str) -> anyhow::Result<()> {
   let service_endpoint = http_endpoint().await?;
 
   reqwest::Client::default()
@@ -90,6 +103,15 @@ async fn feed_auth_data(auth_data: &str) -> anyhow::Result<()> {
   Ok(())
 }
 
+async fn feed_auth_data_cli(auth_data: &str) -> anyhow::Result<()> {
+  let port = tokio::fs::read_to_string(GP_CLIENT_PORT_FILE).await?;
+  let mut stream = tokio::net::TcpStream::connect(format!("127.0.0.1:{}", port.trim())).await?;
+
+  stream.write_all(auth_data.as_bytes()).await?;
+
+  Ok(())
+}
+
 async fn try_active_gui() -> anyhow::Result<()> {
   let service_endpoint = http_endpoint().await?;
 

apps/gpclient/src/main.rs

@@ -4,6 +4,7 @@ mod disconnect;
 mod launch_gui;
 
 pub(crate) const GP_CLIENT_LOCK_FILE: &str = "/var/run/gpclient.lock";
+pub(crate) const GP_CLIENT_PORT_FILE: &str = "/var/run/gpclient.port";
 
 #[tokio::main]
 async fn main() {

apps/gpservice/src/vpn_task.rs

@@ -38,10 +38,15 @@ impl VpnTaskContext {
     let vpn = match Vpn::builder(req.gateway().server(), args.cookie())
       .script(args.vpnc_script())
       .user_agent(args.user_agent())
+      .os(args.openconnect_os())
+      .certificate(args.certificate())
+      .sslkey(args.sslkey())
+      .key_password(args.key_password())
       .csd_uid(args.csd_uid())
       .csd_wrapper(args.csd_wrapper())
+      .reconnect_timeout(args.reconnect_timeout())
       .mtu(args.mtu())
-      .os(args.openconnect_os())
+      .disable_ipv6(args.disable_ipv6())
       .build()
     {
       Ok(vpn) => vpn,

apps/gpservice/src/ws_server.rs

@@ -118,28 +118,41 @@ impl WsServer {
   }
 
   pub async fn start(&self, shutdown_tx: mpsc::Sender<()>) {
-    if let Ok(listener) = TcpListener::bind("127.0.0.1:0").await {
+    let listener = match self.start_tcp_server().await {
-      let local_addr = listener.local_addr().unwrap();
+      Ok(listener) => listener,
+      Err(err) => {
+        warn!("Failed to start WS server: {}", err);
+        let _ = shutdown_tx.send(()).await;
+        return;
+      },
+    };
 
-      self.lock_file.lock(local_addr.port().to_string()).unwrap();
+    tokio::select! {
-
+      _ = watch_vpn_state(self.ctx.vpn_state_rx(), Arc::clone(&self.ctx)) => {
-      info!("WS server listening on port: {}", local_addr.port());
+        info!("VPN state watch task completed");
-
+      }
-      tokio::select! {
+      _ = start_server(listener, self.ctx.clone()) => {
-        _ = watch_vpn_state(self.ctx.vpn_state_rx(), Arc::clone(&self.ctx)) => {
+          info!("WS server stopped");
-          info!("VPN state watch task completed");
+      }
-        }
+      _ = self.cancel_token.cancelled() => {
-        _ = start_server(listener, self.ctx.clone()) => {
+        info!("WS server cancelled");
-            info!("WS server stopped");
-        }
-        _ = self.cancel_token.cancelled() => {
-          info!("WS server cancelled");
-        }
       }
     }
 
     let _ = shutdown_tx.send(()).await;
   }
+
+  async fn start_tcp_server(&self) -> anyhow::Result<TcpListener> {
+    let listener = TcpListener::bind("127.0.0.1:0").await?;
+    let local_addr = listener.local_addr()?;
+    let port = local_addr.port();
+
+    info!("WS server listening on port: {}", port);
+
+    self.lock_file.lock(port.to_string())?;
+
+    Ok(listener)
+  }
 }
 
 async fn watch_vpn_state(mut vpn_state_rx: watch::Receiver<VpnState>, ctx: Arc<WsServerContext>) {

changelog.md

@@ -1,5 +1,36 @@
 # Changelog
 
+## 2.3.1 - 2024-05-21
+
+- Fix the `--sslkey` option not working
+
+## 2.3.0 - 2024-05-20
+
+- Support client certificate authentication (fix [#363](https://github.com/yuezk/GlobalProtect-openconnect/issues/363))
+- Support `--disable-ipv6`, `--reconnect-timeout` parameters (related: [#364](https://github.com/yuezk/GlobalProtect-openconnect/issues/364))
+- Use default labels if label fields are missing in prelogin response (fix [#357](https://github.com/yuezk/GlobalProtect-openconnect/issues/357))
+
+## 2.2.1 - 2024-05-07
+
+- GUI: Restore the default browser auth implementation (fix [#360](https://github.com/yuezk/GlobalProtect-openconnect/issues/360))
+
+## 2.2.0 - 2024-04-30
+
+- CLI: support authentication with external browser (fix [#298](https://github.com/yuezk/GlobalProtect-openconnect/issues/298))
+- GUI: support using file-based storage when the system keyring is not available.
+
+## 2.1.4 - 2024-04-10
+
+- Support MFA authentication (fix [#343](https://github.com/yuezk/GlobalProtect-openconnect/issues/343))
+- Improve the Gateway switcher UI
+
+## 2.1.3 - 2024-04-07
+
+- Support CAS authentication (fix [#339](https://github.com/yuezk/GlobalProtect-openconnect/issues/339))
+- CLI: Add `--as-gateway` option to connect as gateway directly (fix [#318](https://github.com/yuezk/GlobalProtect-openconnect/issues/318))
+- GUI: Support connect the gateway directly (fix [#318](https://github.com/yuezk/GlobalProtect-openconnect/issues/318))
+- GUI: Add an option to use symbolic tray icon (fix [#341](https://github.com/yuezk/GlobalProtect-openconnect/issues/341))
+
 ## 2.1.2 - 2024-03-29
 
 - Treat portal as gateway when the gateway login is failed (fix #338)

crates/common/src/vpn_utils.rs

@@ -1,7 +1,6 @@
-use is_executable::IsExecutable;
+use std::{io, path::Path};
-use std::path::Path;
 
-pub use is_executable::is_executable;
+use is_executable::IsExecutable;
 
 const VPNC_SCRIPT_LOCATIONS: [&str; 6] = [
   "/usr/local/share/vpnc-scripts/vpnc-script",
@@ -39,3 +38,17 @@ pub fn find_vpnc_script() -> Option<String> {
 pub fn find_csd_wrapper() -> Option<String> {
   find_executable(&CSD_WRAPPER_LOCATIONS)
 }
+
+/// If file exists, check if it is executable
+pub fn check_executable(file: &str) -> Result<(), io::Error> {
+  let path = Path::new(file);
+
+  if path.exists() && !path.is_executable() {
+    return Err(io::Error::new(
+      io::ErrorKind::PermissionDenied,
+      format!("{} is not executable", file),
+    ));
+  }
+
+  Ok(())
+}

crates/gpapi/Cargo.toml

@@ -9,6 +9,8 @@ anyhow.workspace = true
 base64.workspace = true
 log.workspace = true
 reqwest.workspace = true
+openssl.workspace = true
+pem.workspace = true
 roxmltree.workspace = true
 serde.workspace = true
 specta.workspace = true

crates/gpapi/src/auth.rs

@@ -70,6 +70,7 @@ impl SamlAuthData {
 
       let auth_data: SamlAuthData = serde_urlencoded::from_str(auth_data).map_err(|e| {
         warn!("Failed to parse token auth data: {}", e);
+        warn!("Auth data: {}", auth_data);
         AuthDataParseError::Invalid
       })?;
 

crates/gpapi/src/credential.rs

@@ -37,13 +37,13 @@ impl From<&CachedCredential> for PasswordCredential {
 
 #[derive(Debug, Serialize, Deserialize, Type, Clone)]
 #[serde(rename_all = "camelCase")]
-pub struct PreloginCookieCredential {
+pub struct PreloginCredential {
   username: String,
   prelogin_cookie: Option<String>,
   token: Option<String>,
 }
 
-impl PreloginCookieCredential {
+impl PreloginCredential {
   pub fn new(username: &str, prelogin_cookie: Option<&str>, token: Option<&str>) -> Self {
     Self {
       username: username.to_string(),
@@ -65,7 +65,7 @@ impl PreloginCookieCredential {
   }
 }
 
-impl From<SamlAuthData> for PreloginCookieCredential {
+impl From<SamlAuthData> for PreloginCredential {
   fn from(value: SamlAuthData) -> Self {
     let username = value.username().to_string();
     let prelogin_cookie = value.prelogin_cookie();
@@ -160,9 +160,9 @@ impl From<PasswordCredential> for CachedCredential {
 #[serde(tag = "type", rename_all = "camelCase")]
 pub enum Credential {
   Password(PasswordCredential),
-  PreloginCookie(PreloginCookieCredential),
+  Prelogin(PreloginCredential),
   AuthCookie(AuthCookieCredential),
-  CachedCredential(CachedCredential),
+  Cached(CachedCredential),
 }
 
 impl Credential {
@@ -177,9 +177,9 @@ impl Credential {
   pub fn username(&self) -> &str {
     match self {
       Credential::Password(cred) => cred.username(),
-      Credential::PreloginCookie(cred) => cred.username(),
+      Credential::Prelogin(cred) => cred.username(),
       Credential::AuthCookie(cred) => cred.username(),
-      Credential::CachedCredential(cred) => cred.username(),
+      Credential::Cached(cred) => cred.username(),
     }
   }
 
@@ -189,7 +189,7 @@ impl Credential {
 
     let (passwd, prelogin_cookie, portal_userauthcookie, portal_prelogonuserauthcookie, token) = match self {
       Credential::Password(cred) => (Some(cred.password()), None, None, None, None),
-      Credential::PreloginCookie(cred) => (None, cred.prelogin_cookie(), None, None, cred.token()),
+      Credential::Prelogin(cred) => (None, cred.prelogin_cookie(), None, None, cred.token()),
       Credential::AuthCookie(cred) => (
         None,
         None,
@@ -197,7 +197,7 @@ impl Credential {
         Some(cred.prelogon_user_auth_cookie()),
         None,
       ),
-      Credential::CachedCredential(cred) => (
+      Credential::Cached(cred) => (
         cred.password(),
         None,
         Some(cred.auth_cookie.user_auth_cookie()),
@@ -224,9 +224,9 @@ impl Credential {
 
 impl From<SamlAuthData> for Credential {
   fn from(value: SamlAuthData) -> Self {
-    let cred = PreloginCookieCredential::from(value);
+    let cred = PreloginCredential::from(value);
 
-    Self::PreloginCookie(cred)
+    Self::Prelogin(cred)
   }
 }
 
@@ -244,6 +244,6 @@ impl From<&AuthCookieCredential> for Credential {
 
 impl From<&CachedCredential> for Credential {
   fn from(value: &CachedCredential) -> Self {
-    Self::CachedCredential(value.clone())
+    Self::Cached(value.clone())
   }
 }

crates/gpapi/src/error.rs

@@ -2,7 +2,7 @@ use thiserror::Error;
 
 #[derive(Error, Debug)]
 pub enum PortalError {
-  #[error("Portal prelogin error: {0}")]
+  #[error("Prelogin error: {0}")]
   PreloginError(String),
   #[error("Portal config error: {0}")]
   ConfigError(String),

crates/gpapi/src/gateway/hip.rs

@@ -156,11 +156,7 @@ fn build_csd_token(cookie: &str) -> anyhow::Result<String> {
 }
 
 pub async fn hip_report(gateway: &str, cookie: &str, csd_wrapper: &str, gp_params: &GpParams) -> anyhow::Result<()> {
-  let client = Client::builder()
+  let client = Client::try_from(gp_params)?;
-    .danger_accept_invalid_certs(gp_params.ignore_tls_errors())
-    .user_agent(gp_params.user_agent())
-    .build()?;
-
   let md5 = build_csd_token(cookie)?;
 
   info!("Submit HIP report md5: {}", md5);

crates/gpapi/src/gateway/login.rs

@@ -8,18 +8,20 @@ use crate::{
   credential::Credential,
   error::PortalError,
   gp_params::GpParams,
-  utils::{normalize_server, parse_gp_error, remove_url_scheme},
+  utils::{normalize_server, parse_gp_response, remove_url_scheme},
 };
 
-pub async fn gateway_login(gateway: &str, cred: &Credential, gp_params: &GpParams) -> anyhow::Result<String> {
+pub enum GatewayLogin {
+  Cookie(String),
+  Mfa(String, String),
+}
+
+pub async fn gateway_login(gateway: &str, cred: &Credential, gp_params: &GpParams) -> anyhow::Result<GatewayLogin> {
   let url = normalize_server(gateway)?;
   let gateway = remove_url_scheme(&url);
 
   let login_url = format!("{}/ssl-vpn/login.esp", url);
-  let client = Client::builder()
+  let client = Client::try_from(gp_params)?;
-    .danger_accept_invalid_certs(gp_params.ignore_tls_errors())
-    .user_agent(gp_params.user_agent())
-    .build()?;
 
   let mut params = cred.to_params();
   let extra_params = gp_params.to_params();
@@ -36,23 +38,25 @@ pub async fn gateway_login(gateway: &str, cred: &Credential, gp_params: &GpParam
     .await
     .map_err(|e| anyhow::anyhow!(PortalError::NetworkError(e.to_string())))?;
 
-  let status = res.status();
+  let res = parse_gp_response(res).await.map_err(|err| {
+    warn!("{err}");
+    anyhow::anyhow!("Gateway login error: {}", err.reason)
+  })?;
 
-  if status.is_client_error() || status.is_server_error() {
+  // MFA detected
-    let (reason, res) = parse_gp_error(res).await;
+  if res.contains("Challenge") {
+    let Some((message, input_str)) = parse_mfa(&res) else {
+      bail!("Failed to parse MFA challenge: {res}");
+    };
 
-    warn!(
+    return Ok(GatewayLogin::Mfa(message, input_str));
-      "Gateway login error: reason={}, status={}, response={}",
-      reason, status, res
-    );
-
-    bail!("Gateway login error, reason: {}", reason);
   }
 
-  let res_xml = res.text().await?;
+  let doc = Document::parse(&res)?;
-  let doc = Document::parse(&res_xml)?;
 
-  build_gateway_token(&doc, gp_params.computer())
+  let cookie = build_gateway_token(&doc, gp_params.computer())?;
+
+  Ok(GatewayLogin::Cookie(cookie))
 }
 
 fn build_gateway_token(doc: &Document, computer: &str) -> anyhow::Result<String> {
@@ -86,3 +90,33 @@ fn read_args<'a>(args: &'a [String], index: usize, key: &'a str) -> anyhow::Resu
     .ok_or_else(|| anyhow::anyhow!("Failed to read {key} from args"))
     .map(|s| (key, s.as_ref()))
 }
+
+fn parse_mfa(res: &str) -> Option<(String, String)> {
+  let message = res
+    .lines()
+    .find(|l| l.contains("respMsg"))
+    .and_then(|l| l.split('"').nth(1).map(|s| s.to_string()))?;
+
+  let input_str = res
+    .lines()
+    .find(|l| l.contains("inputStr"))
+    .and_then(|l| l.split('"').nth(1).map(|s| s.to_string()))?;
+
+  Some((message, input_str))
+}
+
+#[cfg(test)]
+mod tests {
+  use super::*;
+
+  #[test]
+  fn mfa() {
+    let res = r#"var respStatus = "Challenge";
+var respMsg = "MFA message";
+thisForm.inputStr.value = "5ef64e83000119ed";"#;
+
+    let (message, input_str) = parse_mfa(res).unwrap();
+    assert_eq!(message, "MFA message");
+    assert_eq!(input_str, "5ef64e83000119ed");
+  }
+}

crates/gpapi/src/gp_params.rs

@@ -1,9 +1,11 @@
 use std::collections::HashMap;
 
+use log::info;
+use reqwest::Client;
 use serde::{Deserialize, Serialize};
 use specta::Type;
 
-use crate::GP_USER_AGENT;
+use crate::{utils::request::create_identity, GP_USER_AGENT};
 
 #[derive(Debug, Serialize, Deserialize, Clone, Type, Default)]
 pub enum ClientOs {
@@ -42,7 +44,7 @@ impl ClientOs {
   }
 }
 
-#[derive(Debug, Serialize, Deserialize, Type, Default)]
+#[derive(Debug, Serialize, Deserialize, Type, Default, Clone)]
 pub struct GpParams {
   is_gateway: bool,
   user_agent: String,
@@ -51,6 +53,12 @@ pub struct GpParams {
   client_version: Option<String>,
   computer: String,
   ignore_tls_errors: bool,
+  certificate: Option<String>,
+  sslkey: Option<String>,
+  key_password: Option<String>,
+  // Used for MFA
+  input_str: Option<String>,
+  otp: Option<String>,
 }
 
 impl GpParams {
@@ -90,6 +98,14 @@ impl GpParams {
     self.client_version.as_deref()
   }
 
+  pub fn set_input_str(&mut self, input_str: &str) {
+    self.input_str = Some(input_str.to_string());
+  }
+
+  pub fn set_otp(&mut self, otp: &str) {
+    self.otp = Some(otp.to_string());
+  }
+
   pub(crate) fn to_params(&self) -> HashMap<&str, &str> {
     let mut params: HashMap<&str, &str> = HashMap::new();
     let client_os = self.client_os.as_str();
@@ -100,11 +116,16 @@ impl GpParams {
     params.insert("ok", "Login");
     params.insert("direct", "yes");
     params.insert("ipv6-support", "yes");
-    params.insert("inputStr", "");
     params.insert("clientVer", "4100");
     params.insert("clientos", client_os);
     params.insert("computer", &self.computer);
 
+    // MFA
+    params.insert("inputStr", self.input_str.as_deref().unwrap_or_default());
+    if let Some(otp) = &self.otp {
+      params.insert("passwd", otp);
+    }
+
     if let Some(os_version) = &self.os_version {
       params.insert("os-version", os_version);
     }
@@ -126,18 +147,26 @@ pub struct GpParamsBuilder {
   client_version: Option<String>,
   computer: String,
   ignore_tls_errors: bool,
+  certificate: Option<String>,
+  sslkey: Option<String>,
+  key_password: Option<String>,
 }
 
 impl GpParamsBuilder {
   pub fn new() -> Self {
+    let computer = whoami::fallible::hostname().unwrap_or_else(|_| String::from("localhost"));
+
     Self {
       is_gateway: false,
       user_agent: GP_USER_AGENT.to_string(),
       client_os: ClientOs::Linux,
       os_version: Default::default(),
       client_version: Default::default(),
-      computer: whoami::hostname(),
+      computer,
       ignore_tls_errors: false,
+      certificate: Default::default(),
+      sslkey: Default::default(),
+      key_password: Default::default(),
     }
   }
 
@@ -176,6 +205,21 @@ impl GpParamsBuilder {
     self
   }
 
+  pub fn certificate<T: Into<Option<String>>>(&mut self, certificate: T) -> &mut Self {
+    self.certificate = certificate.into();
+    self
+  }
+
+  pub fn sslkey<T: Into<Option<String>>>(&mut self, sslkey: T) -> &mut Self {
+    self.sslkey = sslkey.into();
+    self
+  }
+
+  pub fn key_password<T: Into<Option<String>>>(&mut self, password: T) -> &mut Self {
+    self.key_password = password.into();
+    self
+  }
+
   pub fn build(&self) -> GpParams {
     GpParams {
       is_gateway: self.is_gateway,
@@ -185,6 +229,11 @@ impl GpParamsBuilder {
       client_version: self.client_version.clone(),
       computer: self.computer.clone(),
       ignore_tls_errors: self.ignore_tls_errors,
+      certificate: self.certificate.clone(),
+      sslkey: self.sslkey.clone(),
+      key_password: self.key_password.clone(),
+      input_str: Default::default(),
+      otp: Default::default(),
     }
   }
 }
@@ -194,3 +243,22 @@ impl Default for GpParamsBuilder {
     Self::new()
   }
 }
+
+impl TryFrom<&GpParams> for Client {
+  type Error = anyhow::Error;
+
+  fn try_from(value: &GpParams) -> Result<Self, Self::Error> {
+    let mut builder = Client::builder()
+      .danger_accept_invalid_certs(value.ignore_tls_errors)
+      .user_agent(&value.user_agent);
+
+    if let Some(cert) = value.certificate.as_deref() {
+      info!("Using client certificate authentication...");
+      let identity = create_identity(cert, value.sslkey.as_deref(), value.key_password.as_deref())?;
+      builder = builder.identity(identity);
+    }
+
+    let client = builder.build()?;
+    Ok(client)
+  }
+}

crates/gpapi/src/portal/config.rs

@@ -10,7 +10,7 @@ use crate::{
   error::PortalError,
   gateway::{parse_gateways, Gateway},
   gp_params::GpParams,
-  utils::{normalize_server, parse_gp_error, remove_url_scheme, xml},
+  utils::{normalize_server, parse_gp_response, remove_url_scheme, xml},
 };
 
 #[derive(Debug, Serialize, Type)]
@@ -88,10 +88,7 @@ pub async fn retrieve_config(portal: &str, cred: &Credential, gp_params: &GpPara
   let server = remove_url_scheme(&portal);
 
   let url = format!("{}/global-protect/getconfig.esp", portal);
-  let client = Client::builder()
+  let client = Client::try_from(gp_params)?;
-    .danger_accept_invalid_certs(gp_params.ignore_tls_errors())
-    .user_agent(gp_params.user_agent())
-    .build()?;
 
   let mut params = cred.to_params();
   let extra_params = gp_params.to_params();
@@ -108,24 +105,19 @@ pub async fn retrieve_config(portal: &str, cred: &Credential, gp_params: &GpPara
     .send()
     .await
     .map_err(|e| anyhow::anyhow!(PortalError::NetworkError(e.to_string())))?;
-  let status = res.status();
 
-  if status == StatusCode::NOT_FOUND {
+  let res_xml = parse_gp_response(res).await.or_else(|err| {
-    bail!(PortalError::ConfigError("Config endpoint not found".to_string()))
+    if err.status == StatusCode::NOT_FOUND {
-  }
+      bail!(PortalError::ConfigError("Config endpoint not found".to_string()));
+    }
 
-  if status.is_client_error() || status.is_server_error() {
+    if err.is_status_error() {
-    let (reason, res) = parse_gp_error(res).await;
+      warn!("{err}");
+      bail!("Portal config error: {}", err.reason);
+    }
 
-    warn!(
+    Err(anyhow::anyhow!(PortalError::ConfigError(err.reason)))
-      "Portal config error: reason={}, status={}, response={}",
+  })?;
-      reason, status, res
-    );
-
-    bail!("Portal config error, reason: {}", reason);
-  }
-
-  let res_xml = res.text().await.map_err(|e| PortalError::ConfigError(e.to_string()))?;
 
   if res_xml.is_empty() {
     bail!(PortalError::ConfigError("Empty portal config response".to_string()))

crates/gpapi/src/portal/prelogin.rs

@@ -8,7 +8,7 @@ use specta::Type;
 use crate::{
   error::PortalError,
   gp_params::GpParams,
-  utils::{base64, normalize_server, parse_gp_error, xml},
+  utils::{base64, normalize_server, parse_gp_response, xml},
 };
 
 const REQUIRED_PARAMS: [&str; 8] = [
@@ -98,10 +98,12 @@ impl Prelogin {
 
 pub async fn prelogin(portal: &str, gp_params: &GpParams) -> anyhow::Result<Prelogin> {
   let user_agent = gp_params.user_agent();
-  info!("Prelogin with user_agent: {}", user_agent);
+  let is_gateway = gp_params.is_gateway();
+  let prelogin_type = if is_gateway { "Gateway" } else { "Portal" };
+
+  info!("{} prelogin with user_agent: {}", prelogin_type, user_agent);
 
   let portal = normalize_server(portal)?;
-  let is_gateway = gp_params.is_gateway();
   let path = if is_gateway { "ssl-vpn" } else { "global-protect" };
   let prelogin_url = format!("{portal}/{}/prelogin.esp", path);
   let mut params = gp_params.to_params();
@@ -112,12 +114,7 @@ pub async fn prelogin(portal: &str, gp_params: &GpParams) -> anyhow::Result<Prel
 
   params.retain(|k, _| REQUIRED_PARAMS.iter().any(|required_param| required_param == k));
 
-  info!("Prelogin with params: {:?}", params);
+  let client = Client::try_from(gp_params)?;
-
-  let client = Client::builder()
-    .danger_accept_invalid_certs(gp_params.ignore_tls_errors())
-    .user_agent(user_agent)
-    .build()?;
 
   let res = client
     .post(&prelogin_url)
@@ -126,38 +123,36 @@ pub async fn prelogin(portal: &str, gp_params: &GpParams) -> anyhow::Result<Prel
     .await
     .map_err(|e| anyhow::anyhow!(PortalError::NetworkError(e.to_string())))?;
 
-  let status = res.status();
+  let res_xml = parse_gp_response(res).await.or_else(|err| {
-  if status == StatusCode::NOT_FOUND {
+    if err.status == StatusCode::NOT_FOUND {
-    bail!(PortalError::PreloginError("Prelogin endpoint not found".to_string()))
+      bail!(PortalError::PreloginError("Prelogin endpoint not found".to_string()))
-  }
+    }
 
-  if status.is_client_error() || status.is_server_error() {
+    if err.is_status_error() {
-    let (reason, res) = parse_gp_error(res).await;
+      warn!("{err}");
+      bail!("Prelogin error: {}", err.reason)
+    }
 
-    warn!("Prelogin error: reason={}, status={}, response={}", reason, status, res);
+    Err(anyhow!(PortalError::PreloginError(err.reason)))
+  })?;
 
-    bail!("Prelogin error: {}", status)
+  let prelogin = parse_res_xml(&res_xml, is_gateway).map_err(|err| {
-  }
+    warn!("Parse response error, response: {}", res_xml);
-
+    PortalError::PreloginError(err.to_string())
-  let res_xml = res
+  })?;
-    .text()
-    .await
-    .map_err(|e| PortalError::PreloginError(e.to_string()))?;
-
-  let prelogin = parse_res_xml(res_xml, is_gateway).map_err(|e| PortalError::PreloginError(e.to_string()))?;
 
   Ok(prelogin)
 }
 
-fn parse_res_xml(res_xml: String, is_gateway: bool) -> anyhow::Result<Prelogin> {
+fn parse_res_xml(res_xml: &str, is_gateway: bool) -> anyhow::Result<Prelogin> {
-  let doc = Document::parse(&res_xml)?;
+  let doc = Document::parse(res_xml)?;
 
   let status = xml::get_child_text(&doc, "status")
     .ok_or_else(|| anyhow::anyhow!("Prelogin response does not contain status element"))?;
   // Check the status of the prelogin response
   if status.to_uppercase() != "SUCCESS" {
     let msg = xml::get_child_text(&doc, "msg").unwrap_or(String::from("Unknown error"));
-    bail!("Prelogin failed: {}", msg)
+    bail!("{}", msg)
   }
 
   let region = xml::get_child_text(&doc, "region").unwrap_or_else(|| {
@@ -183,22 +178,24 @@ fn parse_res_xml(res_xml: String, is_gateway: bool) -> anyhow::Result<Prelogin>
     return Ok(Prelogin::Saml(saml_prelogin));
   }
 
-  let label_username = xml::get_child_text(&doc, "username-label");
+  let label_username = xml::get_child_text(&doc, "username-label").unwrap_or_else(|| {
-  let label_password = xml::get_child_text(&doc, "password-label");
+    info!("Username label has no value, using default");
-  // Check if the prelogin response is standard login
+    String::from("Username")
-  if label_username.is_some() && label_password.is_some() {
+  });
-    let auth_message =
+  let label_password = xml::get_child_text(&doc, "password-label").unwrap_or_else(|| {
-      xml::get_child_text(&doc, "authentication-message").unwrap_or(String::from("Please enter the login credentials"));
+    info!("Password label has no value, using default");
-    let standard_prelogin = StandardPrelogin {
+    String::from("Password")
-      region,
+  });
-      is_gateway,
-      auth_message,
-      label_username: label_username.unwrap(),
-      label_password: label_password.unwrap(),
-    };
 
-    Ok(Prelogin::Standard(standard_prelogin))
+  let auth_message =
-  } else {
+    xml::get_child_text(&doc, "authentication-message").unwrap_or(String::from("Please enter the login credentials"));
-    Err(anyhow!("Invalid prelogin response"))
+  let standard_prelogin = StandardPrelogin {
-  }
+    region,
+    is_gateway,
+    auth_message,
+    label_username,
+    label_password,
+  };
+
+  Ok(Prelogin::Standard(standard_prelogin))
 }

crates/gpapi/src/process/auth_launcher.rs

@@ -18,6 +18,7 @@ pub struct SamlAuthLauncher<'a> {
   fix_openssl: bool,
   ignore_tls_errors: bool,
   clean: bool,
+  default_browser: bool,
 }
 
 impl<'a> SamlAuthLauncher<'a> {
@@ -33,6 +34,7 @@ impl<'a> SamlAuthLauncher<'a> {
       fix_openssl: false,
       ignore_tls_errors: false,
       clean: false,
+      default_browser: false,
     }
   }
 
@@ -81,8 +83,13 @@ impl<'a> SamlAuthLauncher<'a> {
     self
   }
 
+  pub fn default_browser(mut self, default_browser: bool) -> Self {
+    self.default_browser = default_browser;
+    self
+  }
+
   /// Launch the authenticator binary as the current user or SUDO_USER if available.
-  pub async fn launch(self) -> anyhow::Result<Credential> {
+  pub async fn launch(self) -> anyhow::Result<Option<Credential>> {
     let mut auth_cmd = Command::new(GP_AUTH_BINARY);
     auth_cmd.arg(self.server);
 
@@ -122,6 +129,10 @@ impl<'a> SamlAuthLauncher<'a> {
       auth_cmd.arg("--clean");
     }
 
+    if self.default_browser {
+      auth_cmd.arg("--default-browser");
+    }
+
     let mut non_root_cmd = auth_cmd.into_non_root()?;
     let output = non_root_cmd
       .kill_on_drop(true)
@@ -130,12 +141,16 @@ impl<'a> SamlAuthLauncher<'a> {
       .wait_with_output()
       .await?;
 
+    if self.default_browser {
+      return Ok(None);
+    }
+
     let Ok(auth_result) = serde_json::from_slice::<SamlAuthResult>(&output.stdout) else {
       bail!("Failed to parse auth data")
     };
 
     match auth_result {
-      SamlAuthResult::Success(auth_data) => Ok(Credential::from(auth_data)),
+      SamlAuthResult::Success(auth_data) => Ok(Some(Credential::from(auth_data))),
       SamlAuthResult::Failure(msg) => bail!(msg),
     }
   }

crates/gpapi/src/process/browser_authenticator.rs

@@ -1,4 +1,7 @@
-use std::{env::temp_dir, io::Write};
+use std::{env::temp_dir, fs, io::Write, os::unix::fs::PermissionsExt};
+
+use anyhow::bail;
+use log::warn;
 
 pub struct BrowserAuthenticator<'a> {
   auth_request: &'a str,
@@ -14,8 +17,18 @@ impl BrowserAuthenticator<'_> {
       open::that_detached(self.auth_request)?;
     } else {
       let html_file = temp_dir().join("gpauth.html");
-      let mut file = std::fs::File::create(&html_file)?;
 
+      // Remove the file and error if permission denied
+      if let Err(err) = fs::remove_file(&html_file) {
+        if err.kind() != std::io::ErrorKind::NotFound {
+          warn!("Failed to remove the temporary file: {}", err);
+          bail!("Please remove the file manually: {:?}", html_file);
+        }
+      }
+
+      let mut file = fs::File::create(&html_file)?;
+
+      file.set_permissions(fs::Permissions::from_mode(0o600))?;
       file.write_all(self.auth_request.as_bytes())?;
 
       open::that_detached(html_file)?;
@@ -24,11 +37,3 @@ impl BrowserAuthenticator<'_> {
     Ok(())
   }
 }
-
-impl Drop for BrowserAuthenticator<'_> {
-  fn drop(&mut self) {
-    // Cleanup the temporary file
-    let html_file = temp_dir().join("gpauth.html");
-    let _ = std::fs::remove_file(html_file);
-  }
-}

crates/gpapi/src/service/request.rs

@@ -32,10 +32,15 @@ pub struct ConnectArgs {
   cookie: String,
   vpnc_script: Option<String>,
   user_agent: Option<String>,
+  os: Option<ClientOs>,
+  certificate: Option<String>,
+  sslkey: Option<String>,
+  key_password: Option<String>,
   csd_uid: u32,
   csd_wrapper: Option<String>,
+  reconnect_timeout: u32,
   mtu: u32,
-  os: Option<ClientOs>,
+  disable_ipv6: bool,
 }
 
 impl ConnectArgs {
@@ -45,9 +50,14 @@ impl ConnectArgs {
       vpnc_script: None,
       user_agent: None,
       os: None,
+      certificate: None,
+      sslkey: None,
+      key_password: None,
       csd_uid: 0,
       csd_wrapper: None,
+      reconnect_timeout: 300,
       mtu: 0,
+      disable_ipv6: false,
     }
   }
 
@@ -67,6 +77,18 @@ impl ConnectArgs {
     self.os.as_ref().map(|os| os.to_openconnect_os().to_string())
   }
 
+  pub fn certificate(&self) -> Option<String> {
+    self.certificate.clone()
+  }
+
+  pub fn sslkey(&self) -> Option<String> {
+    self.sslkey.clone()
+  }
+
+  pub fn key_password(&self) -> Option<String> {
+    self.key_password.clone()
+  }
+
   pub fn csd_uid(&self) -> u32 {
     self.csd_uid
   }
@@ -75,9 +97,17 @@ impl ConnectArgs {
     self.csd_wrapper.clone()
   }
 
+  pub fn reconnect_timeout(&self) -> u32 {
+    self.reconnect_timeout
+  }
+
   pub fn mtu(&self) -> u32 {
     self.mtu
   }
+
+  pub fn disable_ipv6(&self) -> bool {
+    self.disable_ipv6
+  }
 }
 
 #[derive(Debug, Deserialize, Serialize, Type)]
@@ -109,11 +139,6 @@ impl ConnectRequest {
     self
   }
 
-  pub fn with_mtu(mut self, mtu: u32) -> Self {
-    self.args.mtu = mtu;
-    self
-  }
-
   pub fn with_user_agent<T: Into<Option<String>>>(mut self, user_agent: T) -> Self {
     self.args.user_agent = user_agent.into();
     self
@@ -124,6 +149,36 @@ impl ConnectRequest {
     self
   }
 
+  pub fn with_certificate<T: Into<Option<String>>>(mut self, certificate: T) -> Self {
+    self.args.certificate = certificate.into();
+    self
+  }
+
+  pub fn with_sslkey<T: Into<Option<String>>>(mut self, sslkey: T) -> Self {
+    self.args.sslkey = sslkey.into();
+    self
+  }
+
+  pub fn with_key_password<T: Into<Option<String>>>(mut self, key_password: T) -> Self {
+    self.args.key_password = key_password.into();
+    self
+  }
+
+  pub fn with_reconnect_timeout(mut self, reconnect_timeout: u32) -> Self {
+    self.args.reconnect_timeout = reconnect_timeout;
+    self
+  }
+
+  pub fn with_mtu(mut self, mtu: u32) -> Self {
+    self.args.mtu = mtu;
+    self
+  }
+
+  pub fn with_disable_ipv6(mut self, disable_ipv6: bool) -> Self {
+    self.args.disable_ipv6 = disable_ipv6;
+    self
+  }
+
   pub fn gateway(&self) -> &Gateway {
     self.info.gateway()
   }

crates/gpapi/src/utils/mod.rs

@@ -1,5 +1,3 @@
-use reqwest::{Response, Url};
-
 pub(crate) mod xml;
 
 pub mod base64;
@@ -10,13 +8,18 @@ pub mod env_file;
 pub mod lock_file;
 pub mod openssl;
 pub mod redact;
+pub mod request;
 #[cfg(feature = "tauri")]
 pub mod window;
 
 mod shutdown_signal;
 
+use log::warn;
 pub use shutdown_signal::shutdown_signal;
 
+use reqwest::{Response, StatusCode, Url};
+use thiserror::Error;
+
 /// Normalize the server URL to the format `https://<host>:<port>`
 pub fn normalize_server(server: &str) -> anyhow::Result<String> {
   let server = if server.starts_with("https://") || server.starts_with("http://") {
@@ -42,7 +45,41 @@ pub fn remove_url_scheme(s: &str) -> String {
   s.replace("http://", "").replace("https://", "")
 }
 
-pub(crate) async fn parse_gp_error(res: Response) -> (String, String) {
+#[derive(Error, Debug)]
+#[error("GP response error: reason={reason}, status={status}, body={body}")]
+pub(crate) struct GpError {
+  pub status: StatusCode,
+  pub reason: String,
+  body: String,
+}
+
+impl GpError {
+  pub fn is_status_error(&self) -> bool {
+    self.status.is_client_error() || self.status.is_server_error()
+  }
+}
+
+pub(crate) async fn parse_gp_response(res: Response) -> anyhow::Result<String, GpError> {
+  let status = res.status();
+
+  if status.is_client_error() || status.is_server_error() {
+    let (reason, body) = parse_gp_error(res).await;
+
+    return Err(GpError { status, reason, body });
+  }
+
+  res.text().await.map_err(|err| {
+    warn!("Failed to read response: {}", err);
+
+    GpError {
+      status,
+      reason: "failed to read response".to_string(),
+      body: "<failed to read response>".to_string(),
+    }
+  })
+}
+
+async fn parse_gp_error(res: Response) -> (String, String) {
   let reason = res
     .headers()
     .get("x-private-pan-globalprotect")

crates/gpapi/src/utils/request.rs

@@ -0,0 +1,140 @@
+use std::{borrow::Cow, fs};
+
+use anyhow::bail;
+use log::warn;
+use openssl::pkey::PKey;
+use pem::parse_many;
+use reqwest::Identity;
+
+#[derive(Debug, thiserror::Error)]
+pub enum RequestIdentityError {
+  #[error("Failed to find the private key")]
+  NoKey,
+  #[error("No passphrase provided")]
+  NoPassphrase(&'static str),
+  #[error("Failed to decrypt private key")]
+  DecryptError(&'static str),
+}
+
+/// Create an identity object from a certificate and key
+/// The file is expected to be the PKCS#8 PEM or PKCS#12 format
+/// When using a PKCS#12 file, the key is NOT required, but a passphrase is required
+pub fn create_identity(cert: &str, key: Option<&str>, passphrase: Option<&str>) -> anyhow::Result<Identity> {
+  if cert.ends_with(".p12") || cert.ends_with(".pfx") {
+    create_identity_from_pkcs12(cert, passphrase)
+  } else {
+    create_identity_from_pem(cert, key, passphrase)
+  }
+}
+
+fn create_identity_from_pem(cert: &str, key: Option<&str>, passphrase: Option<&str>) -> anyhow::Result<Identity> {
+  let cert_pem = fs::read(cert).map_err(|err| anyhow::anyhow!("Failed to read certificate file: {}", err))?;
+
+  // Use the certificate as the key if no key is provided
+  let key_pem_file = match key {
+    Some(key) => Cow::Owned(fs::read(key).map_err(|err| anyhow::anyhow!("Failed to read key file: {}", err))?),
+    None => Cow::Borrowed(&cert_pem),
+  };
+
+  // Find the private key in the pem file
+  let key_pem = parse_many(key_pem_file.as_ref())?
+    .into_iter()
+    .find(|pem| pem.tag().ends_with("PRIVATE KEY"))
+    .ok_or(RequestIdentityError::NoKey)?;
+
+  // The key pem could be encrypted, so we need to decrypt it
+  let decrypted_key_pem = if key_pem.tag().ends_with("ENCRYPTED PRIVATE KEY") {
+    let passphrase = passphrase.ok_or_else(|| {
+      warn!("Key is encrypted but no passphrase provided");
+      RequestIdentityError::NoPassphrase("PEM")
+    })?;
+    let pem_content = pem::encode(&key_pem);
+    let key = PKey::private_key_from_pem_passphrase(pem_content.as_bytes(), passphrase.as_bytes()).map_err(|err| {
+      warn!("Failed to decrypt key: {}", err);
+      RequestIdentityError::DecryptError("PEM")
+    })?;
+
+    key.private_key_to_pem_pkcs8()?
+  } else {
+    pem::encode(&key_pem).into()
+  };
+
+  let identity = Identity::from_pkcs8_pem(&cert_pem, &decrypted_key_pem)?;
+  Ok(identity)
+}
+
+fn create_identity_from_pkcs12(pkcs12: &str, passphrase: Option<&str>) -> anyhow::Result<Identity> {
+  let pkcs12 = fs::read(pkcs12)?;
+
+  let Some(passphrase) = passphrase else {
+    bail!(RequestIdentityError::NoPassphrase("PKCS#12"));
+  };
+
+  let identity = Identity::from_pkcs12_der(&pkcs12, passphrase)?;
+  Ok(identity)
+}
+
+#[cfg(test)]
+mod tests {
+  use super::*;
+
+  #[test]
+  fn create_identity_from_pem_requires_passphrase() {
+    let cert = "tests/files/badssl.com-client.pem";
+    let identity = create_identity_from_pem(cert, None, None);
+
+    assert!(identity.is_err());
+    assert!(identity.unwrap_err().to_string().contains("No passphrase provided"));
+  }
+
+  #[test]
+  fn create_identity_from_pem_with_passphrase() {
+    let cert = "tests/files/badssl.com-client.pem";
+    let passphrase = "badssl.com";
+
+    let identity = create_identity_from_pem(cert, None, Some(passphrase));
+
+    assert!(identity.is_ok());
+  }
+
+  #[test]
+  fn create_identity_from_pem_unencrypted_key() {
+    let cert = "tests/files/badssl.com-client-unencrypted.pem";
+    let identity = create_identity_from_pem(cert, None, None);
+    println!("{:?}", identity);
+
+    assert!(identity.is_ok());
+  }
+
+  #[test]
+  fn create_identity_from_pem_cert_and_encrypted_key() {
+    let cert = "tests/files/badssl.com-client.pem";
+    let key = "tests/files/badssl.com-client.pem";
+    let passphrase = "badssl.com";
+
+    let identity = create_identity_from_pem(cert, Some(key), Some(passphrase));
+
+    assert!(identity.is_ok());
+  }
+
+  #[test]
+  fn create_identity_from_pem_cert_and_encrypted_key_no_passphrase() {
+    let cert = "tests/files/badssl.com-client.pem";
+    let key = "tests/files/badssl.com-client.pem";
+
+    let identity = create_identity_from_pem(cert, Some(key), None);
+
+    assert!(identity.is_err());
+    assert!(identity.unwrap_err().to_string().contains("No passphrase provided"));
+  }
+
+  #[test]
+  fn create_identity_from_pem_cert_and_unencrypted_key() {
+    let cert = "tests/files/badssl.com-client.pem";
+    let key = "tests/files/badssl.com-client-unencrypted.pem";
+
+    let identity = create_identity_from_pem(cert, Some(key), None);
+
+    assert!(identity.is_ok());
+  }
+}

crates/gpapi/tests/files/badssl.com-client-unencrypted.pem

@@ -0,0 +1,62 @@
+Bag Attributes
+    localKeyID: AE DC 75 2E 97 28 71 D8 1E 9A 7F 1E 5A AA F4 2E D3 6D 2C 8B
+subject=/C=US/ST=California/L=San Francisco/O=BadSSL/CN=BadSSL Client Certificate
+issuer=/C=US/ST=California/L=San Francisco/O=BadSSL/CN=BadSSL Client Root Certificate Authority
+-----BEGIN CERTIFICATE-----
+MIIEnTCCAoWgAwIBAgIJAPfJjkenM2ooMA0GCSqGSIb3DQEBCwUAMH4xCzAJBgNV
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+/syiAWDsYzFuq2Ntv2ljTYPEPwXEIQcpsagDRL6WzoLR
+-----END CERTIFICATE-----
+Bag Attributes
+    localKeyID: AE DC 75 2E 97 28 71 D8 1E 9A 7F 1E 5A AA F4 2E D3 6D 2C 8B
+Key Attributes: <No Attributes>
+-----BEGIN PRIVATE KEY-----
+MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDHN18R6x5Oz+u6
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+GTH3fhaM/pZZGdIC75x/69Y=
+-----END PRIVATE KEY-----

crates/gpapi/tests/files/badssl.com-client.pem

@@ -0,0 +1,64 @@
+Bag Attributes
+    localKeyID: AE DC 75 2E 97 28 71 D8 1E 9A 7F 1E 5A AA F4 2E D3 6D 2C 8B 
+subject=/C=US/ST=California/L=San Francisco/O=BadSSL/CN=BadSSL Client Certificate
+issuer=/C=US/ST=California/L=San Francisco/O=BadSSL/CN=BadSSL Client Root Certificate Authority
+-----BEGIN CERTIFICATE-----
+MIIEnTCCAoWgAwIBAgIJAPfJjkenM2ooMA0GCSqGSIb3DQEBCwUAMH4xCzAJBgNV
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+/syiAWDsYzFuq2Ntv2ljTYPEPwXEIQcpsagDRL6WzoLR
+-----END CERTIFICATE-----
+Bag Attributes
+    localKeyID: AE DC 75 2E 97 28 71 D8 1E 9A 7F 1E 5A AA F4 2E D3 6D 2C 8B 
+Key Attributes: <No Attributes>
+-----BEGIN ENCRYPTED PRIVATE KEY-----
+MIIFDjBABgkqhkiG9w0BBQ0wMzAbBgkqhkiG9w0BBQwwDgQIET6L0Ht/lYgCAggA
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+cB2pKv3tVrdQwo3moYDwSsDgkd7BNKKHDVdY2O6NgX4/Fyd6pZt7ZAphyC1giEqg
+pPo=
+-----END ENCRYPTED PRIVATE KEY-----

crates/openconnect/src/ffi/mod.rs

@@ -14,12 +14,16 @@ pub(crate) struct ConnectOptions {
   pub script: *const c_char,
   pub os: *const c_char,
   pub certificate: *const c_char,
+  pub sslkey: *const c_char,
+  pub key_password: *const c_char,
   pub servercert: *const c_char,
 
   pub csd_uid: u32,
   pub csd_wrapper: *const c_char,
 
+  pub reconnect_timeout: u32,
   pub mtu: u32,
+  pub disable_ipv6: u32,
 }
 
 #[link(name = "vpn")]

crates/openconnect/src/ffi/vpn.c

@@ -16,7 +16,7 @@ static vpn_connected_callback on_vpn_connected;
 /* Validate the peer certificate */
 static int validate_peer_cert(__attribute__((unused)) void *_vpninfo, const char *reason)
 {
-    INFO("Validating peer cert: %s", reason);
+    INFO("Accepting the server certificate though %s", reason);
     return 0;
 }
 
@@ -28,12 +28,9 @@ static void print_progress(__attribute__((unused)) void *_vpninfo, int level, co
     char *message = format_message(format, args);
     va_end(args);
 
-    if (message == NULL)
+    if (message == NULL) {
-    {
         ERROR("Failed to format log message");
-    }
+    } else {
-    else
-    {
         LOG(level, message);
         free(message);
     }
@@ -63,12 +60,13 @@ int vpn_connect(const vpn_options *options, vpn_connected_callback callback)
     INFO("OS: %s", options->os);
     INFO("CSD_USER: %d", options->csd_uid);
     INFO("CSD_WRAPPER: %s", options->csd_wrapper);
+    INFO("RECONNECT_TIMEOUT: %d", options->reconnect_timeout);
     INFO("MTU: %d", options->mtu);
+    INFO("DISABLE_IPV6: %d", options->disable_ipv6);
 
     vpninfo = openconnect_vpninfo_new(options->user_agent, validate_peer_cert, NULL, NULL, print_progress, NULL);
 
-    if (!vpninfo)
+    if (!vpninfo) {
-    {
         ERROR("openconnect_vpninfo_new failed");
         return 1;
     }
@@ -83,15 +81,13 @@ int vpn_connect(const vpn_options *options, vpn_connected_callback callback)
         openconnect_set_reported_os(vpninfo, options->os);
     }
 
-    if (options->certificate)
+    if (options->certificate) {
-    {
         INFO("Setting client certificate: %s", options->certificate);
-        openconnect_set_client_cert(vpninfo, options->certificate, NULL);
+        openconnect_set_client_cert(vpninfo, options->certificate, options->sslkey);
     }
 
-    if (options->servercert) {
+    if (options->key_password) {
-        INFO("Setting server certificate: %s", options->servercert);
+        openconnect_set_key_password(vpninfo, options->key_password);
-        openconnect_set_system_trust(vpninfo, 0);
     }
 
     if (options->csd_wrapper) {
@@ -103,39 +99,37 @@ int vpn_connect(const vpn_options *options, vpn_connected_callback callback)
         openconnect_set_reqmtu(vpninfo, mtu);
     }
 
+    if (options->disable_ipv6) {
+        openconnect_disable_ipv6(vpninfo);
+    }
+
     g_cmd_pipe_fd = openconnect_setup_cmd_pipe(vpninfo);
-    if (g_cmd_pipe_fd < 0)
+    if (g_cmd_pipe_fd < 0) {
-    {
         ERROR("openconnect_setup_cmd_pipe failed");
         return 1;
     }
 
-    if (!uname(&utsbuf))
+    if (!uname(&utsbuf)) {
-    {
         openconnect_set_localname(vpninfo, utsbuf.nodename);
     }
 
     // Essential step
-    if (openconnect_make_cstp_connection(vpninfo) != 0)
+    if (openconnect_make_cstp_connection(vpninfo) != 0) {
-    {
         ERROR("openconnect_make_cstp_connection failed");
         return 1;
     }
 
-    if (openconnect_setup_dtls(vpninfo, 60) != 0)
+    if (openconnect_setup_dtls(vpninfo, 60) != 0) {
-    {
         openconnect_disable_dtls(vpninfo);
     }
 
     // Essential step
     openconnect_set_setup_tun_handler(vpninfo, setup_tun_handler);
 
-    while (1)
+    while (1) {
-    {
+        int ret = openconnect_mainloop(vpninfo, options->reconnect_timeout, 10);
-        int ret = openconnect_mainloop(vpninfo, 300, 10);
 
-        if (ret)
+        if (ret) {
-        {
             INFO("openconnect_mainloop returned %d, exiting", ret);
             openconnect_vpninfo_free(vpninfo);
             return ret;
@@ -152,8 +146,7 @@ void vpn_disconnect()
 
     INFO("Stopping VPN connection: %d", g_cmd_pipe_fd);
 
-    if (write(g_cmd_pipe_fd, &cmd, 1) < 0)
+    if (write(g_cmd_pipe_fd, &cmd, 1) < 0) {
-    {
         ERROR("Failed to write to command pipe, VPN connection may not be stopped");
     }
 }

crates/openconnect/src/ffi/vpn.h

@@ -15,12 +15,16 @@ typedef struct vpn_options
     const char *script;
     const char *os;
     const char *certificate;
+    const char *sslkey;
+    const char *key_password;
     const char *servercert;
 
     const uid_t csd_uid;
     const char *csd_wrapper;
 
+    const int reconnect_timeout;
     const int mtu;
+    const int disable_ipv6;
 } vpn_options;
 
 int vpn_connect(const vpn_options *options, vpn_connected_callback callback);
@@ -35,7 +39,7 @@ static char *format_message(const char *format, va_list args)
     int len = vsnprintf(NULL, 0, format, args_copy);
     va_end(args_copy);
 
-    char *buffer = malloc(len + 1);
+    char *buffer = (char*)malloc(len + 1);
     if (buffer == NULL)
     {
         return NULL;

crates/openconnect/src/vpn.rs

@@ -4,7 +4,7 @@ use std::{
   sync::{Arc, RwLock},
 };
 
-use common::vpn_utils::{find_vpnc_script, is_executable};
+use common::vpn_utils::{check_executable, find_vpnc_script};
 use log::info;
 
 use crate::ffi;
@@ -18,12 +18,16 @@ pub struct Vpn {
   script: CString,
   os: CString,
   certificate: Option<CString>,
+  sslkey: Option<CString>,
+  key_password: Option<CString>,
   servercert: Option<CString>,
 
   csd_uid: u32,
   csd_wrapper: Option<CString>,
 
+  reconnect_timeout: u32,
   mtu: u32,
+  disable_ipv6: bool,
 
   callback: OnConnectedCallback,
 }
@@ -61,13 +65,18 @@ impl Vpn {
       user_agent: self.user_agent.as_ptr(),
       script: self.script.as_ptr(),
       os: self.os.as_ptr(),
+
       certificate: Self::option_to_ptr(&self.certificate),
+      sslkey: Self::option_to_ptr(&self.sslkey),
+      key_password: Self::option_to_ptr(&self.key_password),
       servercert: Self::option_to_ptr(&self.servercert),
 
       csd_uid: self.csd_uid,
       csd_wrapper: Self::option_to_ptr(&self.csd_wrapper),
 
+      reconnect_timeout: self.reconnect_timeout,
       mtu: self.mtu,
+      disable_ipv6: self.disable_ipv6 as u32,
     }
   }
 
@@ -80,23 +89,23 @@ impl Vpn {
 }
 
 #[derive(Debug)]
-pub struct VpnError<'a> {
+pub struct VpnError {
-  message: &'a str,
+  message: String,
 }
 
-impl<'a> VpnError<'a> {
+impl VpnError {
-  fn new(message: &'a str) -> Self {
+  fn new(message: String) -> Self {
     Self { message }
   }
 }
 
-impl fmt::Display for VpnError<'_> {
+impl fmt::Display for VpnError {
-  fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
     write!(f, "{}", self.message)
   }
 }
 
-impl std::error::Error for VpnError<'_> {}
+impl std::error::Error for VpnError {}
 
 pub struct VpnBuilder {
   server: String,
@@ -106,10 +115,16 @@ pub struct VpnBuilder {
   user_agent: Option<String>,
   os: Option<String>,
 
+  certificate: Option<String>,
+  sslkey: Option<String>,
+  key_password: Option<String>,
+
   csd_uid: u32,
   csd_wrapper: Option<String>,
 
+  reconnect_timeout: u32,
   mtu: u32,
+  disable_ipv6: bool,
 }
 
 impl VpnBuilder {
@@ -122,10 +137,16 @@ impl VpnBuilder {
       user_agent: None,
       os: None,
 
+      certificate: None,
+      sslkey: None,
+      key_password: None,
+
       csd_uid: 0,
       csd_wrapper: None,
 
+      reconnect_timeout: 300,
       mtu: 0,
+      disable_ipv6: false,
     }
   }
 
@@ -144,6 +165,21 @@ impl VpnBuilder {
     self
   }
 
+  pub fn certificate<T: Into<Option<String>>>(mut self, certificate: T) -> Self {
+    self.certificate = certificate.into();
+    self
+  }
+
+  pub fn sslkey<T: Into<Option<String>>>(mut self, sslkey: T) -> Self {
+    self.sslkey = sslkey.into();
+    self
+  }
+
+  pub fn key_password<T: Into<Option<String>>>(mut self, key_password: T) -> Self {
+    self.key_password = key_password.into();
+    self
+  }
+
   pub fn csd_uid(mut self, csd_uid: u32) -> Self {
     self.csd_uid = csd_uid;
     self
@@ -154,26 +190,32 @@ impl VpnBuilder {
     self
   }
 
+  pub fn reconnect_timeout(mut self, reconnect_timeout: u32) -> Self {
+    self.reconnect_timeout = reconnect_timeout;
+    self
+  }
+
   pub fn mtu(mut self, mtu: u32) -> Self {
     self.mtu = mtu;
     self
   }
 
-  pub fn build(self) -> Result<Vpn, VpnError<'static>> {
+  pub fn disable_ipv6(mut self, disable_ipv6: bool) -> Self {
+    self.disable_ipv6 = disable_ipv6;
+    self
+  }
+
+  pub fn build(self) -> Result<Vpn, VpnError> {
     let script = match self.script {
       Some(script) => {
-        if !is_executable(&script) {
+        check_executable(&script).map_err(|e| VpnError::new(e.to_string()))?;
-          return Err(VpnError::new("vpnc script is not executable"));
-        }
         script
       }
-      None => find_vpnc_script().ok_or_else(|| VpnError::new("Failed to find vpnc-script"))?,
+      None => find_vpnc_script().ok_or_else(|| VpnError::new(String::from("Failed to find vpnc-script")))?,
     };
 
     if let Some(csd_wrapper) = &self.csd_wrapper {
-      if !is_executable(csd_wrapper) {
+      check_executable(csd_wrapper).map_err(|e| VpnError::new(e.to_string()))?;
-        return Err(VpnError::new("CSD wrapper is not executable"));
-      }
     }
 
     let user_agent = self.user_agent.unwrap_or_default();
@@ -185,13 +227,18 @@ impl VpnBuilder {
       user_agent: Self::to_cstring(&user_agent),
       script: Self::to_cstring(&script),
       os: Self::to_cstring(&os),
-      certificate: None,
+
+      certificate: self.certificate.as_deref().map(Self::to_cstring),
+      sslkey: self.sslkey.as_deref().map(Self::to_cstring),
+      key_password: self.key_password.as_deref().map(Self::to_cstring),
       servercert: None,
 
       csd_uid: self.csd_uid,
       csd_wrapper: self.csd_wrapper.as_deref().map(Self::to_cstring),
 
+      reconnect_timeout: self.reconnect_timeout,
       mtu: self.mtu,
+      disable_ipv6: self.disable_ipv6,
 
       callback: Default::default(),
     })