Implement wpa_supplicant backend

internal/wifi/wpasupplicant/interface.go

@@ -0,0 +1,146 @@
+package wpasupplicant
+
+import (
+	"fmt"
+
+	"github.com/godbus/dbus/v5"
+)
+
+// WPAInterface represents a wpa_supplicant Interface object
+type WPAInterface struct {
+	path dbus.ObjectPath
+	conn *dbus.Conn
+	obj  dbus.BusObject
+}
+
+// NewWPAInterface creates a new WPAInterface instance
+func NewWPAInterface(conn *dbus.Conn, path dbus.ObjectPath) *WPAInterface {
+	return &WPAInterface{
+		path: path,
+		conn: conn,
+		obj:  conn.Object(Service, path),
+	}
+}
+
+// Scan triggers a network scan
+func (i *WPAInterface) Scan(scanType string) error {
+	args := map[string]interface{}{
+		"Type": scanType, // "active" or "passive"
+	}
+
+	err := i.obj.Call(InterfaceInterface+".Scan", 0, args).Err
+	if err != nil {
+		return fmt.Errorf("scan failed: %v", err)
+	}
+	return nil
+}
+
+// GetBSSs returns a list of BSS (Basic Service Set) object paths
+func (i *WPAInterface) GetBSSs() ([]dbus.ObjectPath, error) {
+	prop, err := i.obj.GetProperty(InterfaceInterface + ".BSSs")
+	if err != nil {
+		return nil, fmt.Errorf("failed to get BSSs property: %v", err)
+	}
+
+	bsss, ok := prop.Value().([]dbus.ObjectPath)
+	if !ok {
+		return nil, fmt.Errorf("BSSs property is not an array of ObjectPath")
+	}
+
+	return bsss, nil
+}
+
+// GetState returns the current connection state
+func (i *WPAInterface) GetState() (WPAState, error) {
+	prop, err := i.obj.GetProperty(InterfaceInterface + ".State")
+	if err != nil {
+		return "", fmt.Errorf("failed to get State property: %v", err)
+	}
+
+	state, ok := prop.Value().(string)
+	if !ok {
+		return "", fmt.Errorf("State property is not a string")
+	}
+
+	return WPAState(state), nil
+}
+
+// GetCurrentBSS returns the currently connected BSS object path
+func (i *WPAInterface) GetCurrentBSS() (dbus.ObjectPath, error) {
+	prop, err := i.obj.GetProperty(InterfaceInterface + ".CurrentBSS")
+	if err != nil {
+		return "", fmt.Errorf("failed to get CurrentBSS property: %v", err)
+	}
+
+	bss, ok := prop.Value().(dbus.ObjectPath)
+	if !ok {
+		return "", fmt.Errorf("CurrentBSS property is not an ObjectPath")
+	}
+
+	return bss, nil
+}
+
+// AddNetwork creates a new network configuration
+func (i *WPAInterface) AddNetwork(config map[string]interface{}) (dbus.ObjectPath, error) {
+	var networkPath dbus.ObjectPath
+
+	// Convert config to proper DBus variant format
+	dbusConfig := make(map[string]dbus.Variant)
+	for key, value := range config {
+		dbusConfig[key] = dbus.MakeVariant(value)
+	}
+
+	err := i.obj.Call(InterfaceInterface+".AddNetwork", 0, dbusConfig).Store(&networkPath)
+	if err != nil {
+		return "", fmt.Errorf("failed to add network: %v", err)
+	}
+
+	return networkPath, nil
+}
+
+// SelectNetwork connects to a network
+func (i *WPAInterface) SelectNetwork(networkPath dbus.ObjectPath) error {
+	err := i.obj.Call(InterfaceInterface+".SelectNetwork", 0, networkPath).Err
+	if err != nil {
+		return fmt.Errorf("failed to select network: %v", err)
+	}
+	return nil
+}
+
+// RemoveNetwork removes a network configuration
+func (i *WPAInterface) RemoveNetwork(networkPath dbus.ObjectPath) error {
+	err := i.obj.Call(InterfaceInterface+".RemoveNetwork", 0, networkPath).Err
+	if err != nil {
+		return fmt.Errorf("failed to remove network: %v", err)
+	}
+	return nil
+}
+
+// Disconnect disconnects from the current network
+func (i *WPAInterface) Disconnect() error {
+	err := i.obj.Call(InterfaceInterface+".Disconnect", 0).Err
+	if err != nil {
+		return fmt.Errorf("disconnect failed: %v", err)
+	}
+	return nil
+}
+
+// GetPath returns the D-Bus object path for this interface
+func (i *WPAInterface) GetPath() dbus.ObjectPath {
+	return i.path
+}
+
+// GetScanning returns whether a scan is currently in progress
+func (i *WPAInterface) GetScanning() (bool, error) {
+	prop, err := i.obj.GetProperty(InterfaceInterface + ".Scanning")
+	if err != nil {
+		return false, fmt.Errorf("failed to get Scanning property: %v", err)
+	}
+
+	scanning, ok := prop.Value().(bool)
+	if !ok {
+		return false, fmt.Errorf("Scanning property is not a boolean")
+	}
+
+	return scanning, nil
+}