fix(netlink): try loading Wireguard module if not found (#1741)

internal/mod/probe.go

@@ -0,0 +1,37 @@
+package mod
+
+import (
+	"fmt"
+)
+
+// Probe loads the given kernel module and its dependencies.
+func Probe(moduleName string) error {
+	modulesInfo, err := getModulesInfo()
+	if err != nil {
+		return fmt.Errorf("getting modules information: %w", err)
+	}
+
+	modulePath, err := findModulePath(moduleName, modulesInfo)
+	if err != nil {
+		return fmt.Errorf("finding module path: %w", err)
+	}
+
+	info := modulesInfo[modulePath]
+	if info.state == builtin || info.state == loaded {
+		return nil
+	}
+
+	info.state = loading
+	for _, dependencyModulePath := range info.dependencyPaths {
+		err = initDependencies(dependencyModulePath, modulesInfo)
+		if err != nil {
+			return fmt.Errorf("init dependencies: %w", err)
+		}
+	}
+
+	err = initModule(modulePath)
+	if err != nil {
+		return fmt.Errorf("init module: %w", err)
+	}
+	return nil
+}