Bail if macOS version is 12 or lower

talpid-core/Cargo.toml

@@ -20,6 +20,7 @@ log = { workspace = true }
 once_cell = { workspace = true }
 parking_lot = "0.12.0"
 rand = "0.8.5"
+talpid-platform-metadata = { path = "../talpid-platform-metadata" }
 talpid-routing = { path = "../talpid-routing" }
 talpid-tunnel = { path = "../talpid-tunnel" }
 talpid-tunnel-config-client = { path = "../talpid-tunnel-config-client" }

talpid-core/src/split_tunnel/macos/process.rs

@@ -19,13 +19,20 @@ use std::{
     sync::{Arc, Mutex},
     time::Duration,
 };
+use talpid_platform_metadata::MacosVersion;
 use tokio::io::{AsyncBufReadExt, BufReader};
 
 const SHUTDOWN_TIMEOUT: Duration = Duration::from_secs(3);
 const EARLY_FAIL_TIMEOUT: Duration = Duration::from_millis(500);
 
 #[derive(thiserror::Error, Debug)]
 pub enum Error {
+    /// Failed to detect macOS version
+    #[error("Failed to detect macOS version")]
+    DetectMacosVersion(#[source] io::Error),
+    /// Only macOS 13 and later is supported
+    #[error("Unsupported macOS version")]
+    UnsupportedMacosVersion,
     /// Failed to start eslogger listener
     #[error("Failed to start eslogger")]
     StartMonitor(#[source] io::Error),
@@ -57,6 +64,7 @@ pub struct ProcessMonitorHandle {
 
 impl ProcessMonitor {
     pub async fn spawn() -> Result<ProcessMonitorHandle, Error> {
+        check_os_version_support()?;
         let states = ProcessStates::new()?;
 
         let mut cmd = tokio::process::Command::new("/usr/bin/eslogger");
@@ -456,3 +464,18 @@ fn parse_eslogger_error(stderr_str: &str) -> Option<Error> {
         None
     }
 }
+
+/// Check whether the current macOS version is supported, and return an error otherwise
+fn check_os_version_support() -> Result<(), Error> {
+    match MacosVersion::new().map_err(Error::DetectMacosVersion) {
+        Ok(version) => {
+            if version.major_version() <= 12 {
+                return Err(Error::UnsupportedMacosVersion);
+            }
+        }
+        Err(error) => {
+            log::error!("Failed to detect macOS version: {error}");
+        }
+    }
+    Ok(())
+}