Hack around missing .ethernet on Catalyst

Enum seems to be mapped correctly. Make sure matching works on
real device though.

Also noticed that @available on iOS implies availability on
Catalyst as well, making it ineffective e.g. in this case, where
mobile and ethernet network matching should be only available on
iOS and macOS respectively.

PassepartoutCore/Sources/PassepartoutCore/Extensions/OnDemand+Rules.swift

@@ -26,6 +26,20 @@
 import Foundation
 import NetworkExtension
 
+extension NEOnDemandRuleInterfaceType {
+    static var compatibleEthernet: NEOnDemandRuleInterfaceType? {
+        #if targetEnvironment(macCatalyst)
+        // FIXME: Catalyst, missing enum case, try hardcoding
+        // https://developer.apple.com/documentation/networkextension/neondemandruleinterfacetype/ethernet
+        NEOnDemandRuleInterfaceType(rawValue: 1)
+        #elseif os(macOS)
+        .ethernet
+        #else
+        nil
+        #endif
+    }
+}
+
 extension Profile.OnDemand {
     func rules(withCustomRules: Bool) -> [NEOnDemandRule] {
 
@@ -36,19 +50,20 @@ extension Profile.OnDemand {
 
         var rules: [NEOnDemandRule] = []
         if withCustomRules {
-            #if os(iOS)
             if withMobileNetwork {
                 let rule = policyRule
                 rule.interfaceTypeMatch = .cellular
                 rules.append(rule)
             }
-            #else
             if withEthernetNetwork {
-                let rule = policyRule
-                rule.interfaceTypeMatch = .ethernet
-                rules.append(rule)
+                if let compatibleEthernet = NEOnDemandRuleInterfaceType.compatibleEthernet {
+                    let rule = policyRule
+                    rule.interfaceTypeMatch = compatibleEthernet
+                    rules.append(rule)
+                } else {
+                    pp_log.warning("Unable to add rule for NEOnDemandRuleInterfaceType.ethernet (not compatible)")
+                }
             }
-            #endif
             let SSIDs = Array(withSSIDs.filter { $1 }.keys)
             if !SSIDs.isEmpty {
                 let rule = policyRule

PassepartoutCore/Sources/PassepartoutProfiles/DataModels/Profile+OnDemand.swift

@@ -36,11 +36,8 @@ extension Profile {
         }
         
         public enum OtherNetwork: String, Codable {
-
-            @available(iOS 14, *)
             case mobile
 
-            @available(macOS 11, *)
             case ethernet
         }
         

PassepartoutCore/Sources/PassepartoutProfiles/Extensions/OnDemand+Extensions.swift

@@ -24,12 +24,9 @@
 //
 
 import Foundation
-import NetworkExtension
 import PassepartoutUtils
 
 extension Profile.OnDemand {
-
-    @available(iOS 14, *)
     public var withMobileNetwork: Bool {
         get {
             withOtherNetworks.contains(.mobile)
@@ -43,7 +40,6 @@ extension Profile.OnDemand {
         }
     }
 
-    @available(macOS 11, *)
     public var withEthernetNetwork: Bool {
         get {
             withOtherNetworks.contains(.ethernet)