wifi: Move more logic out of the manager

src/manager.rs

@@ -21,8 +21,8 @@ use crate::power::{
 use crate::process::{run_script, script_output};
 use crate::systemd::SystemdUnit;
 use crate::wifi::{
-    get_wifi_backend, set_wifi_backend, set_wifi_debug_mode, WifiBackend, WifiDebugMode,
-    WifiPowerManagement,
+    get_wifi_backend, get_wifi_power_management_state, set_wifi_backend, set_wifi_debug_mode,
+    set_wifi_power_management_state, WifiBackend, WifiDebugMode, WifiPowerManagement,
 };
 use crate::{anyhow_to_zbus, anyhow_to_zbus_fdo};
 
@@ -95,19 +95,10 @@ impl SteamOSManager {
 
     #[zbus(property(emits_changed_signal = "false"))]
     async fn wifi_power_management_state(&self) -> zbus::fdo::Result<u32> {
-        let output = script_output("/usr/bin/iwconfig", &["wlan0"])
-            .await
-            .map_err(anyhow_to_zbus_fdo)?;
-        for line in output.lines() {
-            return Ok(match line.trim() {
-                "Power Management:on" => WifiPowerManagement::Enabled as u32,
-                "Power Management:off" => WifiPowerManagement::Disabled as u32,
-                _ => continue,
-            });
+        match get_wifi_power_management_state().await {
+            Ok(state) => Ok(state as u32),
+            Err(e) => Err(anyhow_to_zbus_fdo(e)),
         }
-        Err(zbus::fdo::Error::Failed(String::from(
-            "Failed to query power management state",
-        )))
     }
 
     #[zbus(property)]
@@ -116,14 +107,8 @@ impl SteamOSManager {
             Ok(state) => state,
             Err(err) => return Err(zbus::fdo::Error::InvalidArgs(err.to_string()).into()),
         };
-        let state = match state {
-            WifiPowerManagement::Disabled => "off",
-            WifiPowerManagement::Enabled => "on",
-        };
-
-        run_script("/usr/bin/iwconfig", &["wlan0", "power", state])
+        set_wifi_power_management_state(state)
             .await
-            .inspect_err(|message| error!("Error setting wifi power management state: {message}"))
             .map_err(anyhow_to_zbus)
     }
 
@@ -329,16 +314,6 @@ impl SteamOSManager {
         // Set the wifi debug mode to mode, using an int for flexibility going forward but only
         // doing things on 0 or 1 for now
         // Return false on error
-        match get_wifi_backend().await {
-            Ok(WifiBackend::Iwd) => (),
-            Ok(backend) => {
-                return Err(zbus::fdo::Error::Failed(format!(
-                    "Setting wifi debug mode not supported when backend is {backend}",
-                )));
-            }
-            Err(e) => return Err(anyhow_to_zbus_fdo(e)),
-        }
-
         let wanted_mode = match WifiDebugMode::try_from(mode) {
             Ok(mode) => mode,
             Err(e) => return Err(zbus::fdo::Error::InvalidArgs(e.to_string())),

src/wifi.rs

@@ -13,7 +13,7 @@ use tracing::error;
 use zbus::Connection;
 
 use crate::path;
-use crate::process::run_script;
+use crate::process::{run_script, script_output};
 use crate::systemd::{daemon_reload, SystemdUnit};
 
 const OVERRIDE_CONTENTS: &str = "[Service]
@@ -180,9 +180,11 @@ pub async fn set_wifi_debug_mode(
     should_trace: bool,
     connection: Connection,
 ) -> Result<()> {
-    // Set the wifi debug mode to mode, using an int for flexibility going forward but only
-    // doing things on 0 or 1 for now
-    // Return false on error
+    match get_wifi_backend().await {
+        Ok(WifiBackend::Iwd) => (),
+        Ok(backend) => bail!("Setting wifi debug mode not supported when backend is {backend}"),
+        Err(e) => return Err(e),
+    }
 
     match mode {
         WifiDebugMode::Off => {
@@ -242,6 +244,29 @@ pub async fn set_wifi_backend(backend: WifiBackend) -> Result<()> {
     run_script("/usr/bin/steamos-wifi-set-backend", &[backend.to_string()]).await
 }
 
+pub async fn get_wifi_power_management_state() -> Result<WifiPowerManagement> {
+    let output = script_output("/usr/bin/iwconfig", &["wlan0"]).await?;
+    for line in output.lines() {
+        return Ok(match line.trim() {
+            "Power Management:on" => WifiPowerManagement::Enabled,
+            "Power Management:off" => WifiPowerManagement::Disabled,
+            _ => continue,
+        });
+    }
+    bail!("Failed to query power management state")
+}
+
+pub async fn set_wifi_power_management_state(state: WifiPowerManagement) -> Result<()> {
+    let state = match state {
+        WifiPowerManagement::Disabled => "off",
+        WifiPowerManagement::Enabled => "on",
+    };
+
+    run_script("/usr/bin/iwconfig", &["wlan0", "power", state])
+        .await
+        .inspect_err(|message| error!("Error setting wifi power management state: {message}"))
+}
+
 #[cfg(test)]
 mod test {
     use super::*;