MacOS WG/AWG killswitch

client/platforms/macos/daemon/macosfirewall.h

@@ -0,0 +1,63 @@
+#ifndef MACOSFIREWALL_H
+#define MACOSFIREWALL_H
+
+#include <QString>
+#include <QStringList>
+
+// Descriptor for a set of firewall rules to be appled.
+//
+struct FirewallParams
+{
+    QStringList dnsServers;
+    //    QSharedPointer<NetworkAdapter> adapter;
+    QVector<QString> excludeApps; // Apps to exclude if VPN exemptions are enabled
+
+    QStringList allowAddrs;
+    QStringList blockAddrs;
+
+    // The follow flags indicate which general rulesets are needed. Note that
+    // this is after some sanity filtering, i.e. an allow rule may be listed
+    // as not needed if there were no block rules preceding it. The rulesets
+    // should be thought of as in last-match order.
+
+    bool blockAll;      // Block all traffic by default
+    bool blockNets;
+    bool allowNets;
+    bool allowVPN;      // Exempt traffic through VPN tunnel
+    bool allowDHCP;     // Exempt DHCP traffic
+    bool blockIPv6;     // Block all IPv6 traffic
+    bool allowLAN;      // Exempt LAN traffic, including IPv6 LAN traffic
+    bool blockDNS;      // Block all DNS traffic except specified DNS servers
+    bool allowPIA;      // Exempt PIA executables
+    bool allowLoopback; // Exempt loopback traffic
+    bool allowHnsd;     // Exempt Handshake DNS traffic
+    bool allowVpnExemptions; // Exempt specified traffic from the tunnel (route it over the physical uplink instead)
+};
+
+// TODO: Break out firewall handling to a base class that can be used directly
+// by the base daemon class, for some common functionality.
+
+class MacOSFirewall
+{
+
+private:
+    static int execute(const QString &command, bool ignoreErrors = false);
+    static bool isPFEnabled();
+    static bool isRootAnchorLoaded();
+
+public:
+    static void install();
+    static void uninstall();
+    static bool isInstalled();
+    static void enableAnchor(const QString &anchor);
+    static void disableAnchor(const QString &anchor);
+    static bool isAnchorEnabled(const QString &anchor);
+    static void setAnchorEnabled(const QString &anchor, bool enable);
+    static void setAnchorTable(const QString &anchor, bool enabled, const QString &table, const QStringList &items);
+    static void setAnchorWithRules(const QString &anchor, bool enabled, const QStringList &rules);
+    static void ensureRootAnchorPriority();
+    static void installRootAnchors();
+};
+
+
+#endif // MACOSFIREWALL_H