feature/mozilla upstream (#1237)

* cherry-pick 4dfcad96506fb5b88c5bb27342b6d9413fc361c9 from mozilla upstream

* cherry-pick a95fa8c088b9edaff2de18751336942c2d145a9a from mozilla

* cherry-pick commit 4fc1ebbad86a9abcafdc761725a7afd811c8d2d3 from mozilla

* cherry-pick 4dfcad96506fb5b88c5bb27342b6d9413fc361c9 from mozilla upstream

* cherry-pick 22de4fcbd454c64ff496c3380eeaeeb6afff4d64 from mozilla upstream

* cherry-pick 649673be561b66c96367adf379da1545f8838763 from mozilla upstream

* cherry-pick 41bdad34517d0ddaef32139482e5505d92e4b533 from mozilla upstream

* cherry-pick f6e49a85538eaa230d3a8634fa7600966132ccab from mozilla upstream

* cherry-pick 86c585387efa0a09c7937dfe799a90a666404fcd from mozilla upstream

* cherry-pick a18c1fac740469ca3566751b74a16227518630c4 from mozilla upstream

* fixed missing ;

* added excludeLocalNetworks() for linux

* build fixes on windows after cherry-picks

* Add rules for excluded sites splittunell mode

* Fix app splittunell when ipv6 is not setup

* Fix Linux build

---------

Co-authored-by: Mykola Baibuz <mykola.baibuz@gmail.com>

client/platforms/macos/daemon/macosroutemonitor.cpp

@@ -358,8 +358,8 @@ void MacosRouteMonitor::rtmAppendAddr(struct rt_msghdr* rtm, size_t maxlen,
 }
 
 bool MacosRouteMonitor::rtmSendRoute(int action, const IPAddress& prefix,
-                                     unsigned int ifindex,
-                                     const void* gateway) {
+                                     unsigned int ifindex, const void* gateway,
+                                     int flags) {
   constexpr size_t rtm_max_size = sizeof(struct rt_msghdr) +
                                   sizeof(struct sockaddr_in6) * 2 +
                                   sizeof(struct sockaddr_storage);
@@ -370,7 +370,7 @@ bool MacosRouteMonitor::rtmSendRoute(int action, const IPAddress& prefix,
   rtm->rtm_version = RTM_VERSION;
   rtm->rtm_type = action;
   rtm->rtm_index = ifindex;
-  rtm->rtm_flags = RTF_STATIC | RTF_UP;
+  rtm->rtm_flags = flags | RTF_STATIC | RTF_UP;
   rtm->rtm_addrs = 0;
   rtm->rtm_pid = 0;
   rtm->rtm_seq = m_rtseq++;
@@ -490,7 +490,7 @@ bool MacosRouteMonitor::rtmFetchRoutes(int family) {
   return false;
 }
 
-bool MacosRouteMonitor::insertRoute(const IPAddress& prefix) {
+bool MacosRouteMonitor::insertRoute(const IPAddress& prefix, int flags) {
   struct sockaddr_dl datalink;
   memset(&datalink, 0, sizeof(datalink));
   datalink.sdl_family = AF_LINK;
@@ -502,11 +502,11 @@ bool MacosRouteMonitor::insertRoute(const IPAddress& prefix) {
   datalink.sdl_slen = 0;
   memcpy(&datalink.sdl_data, qPrintable(m_ifname), datalink.sdl_nlen);
 
-  return rtmSendRoute(RTM_ADD, prefix, m_ifindex, &datalink);
+  return rtmSendRoute(RTM_ADD, prefix, m_ifindex, &datalink, flags);
 }
 
-bool MacosRouteMonitor::deleteRoute(const IPAddress& prefix) {
-  return rtmSendRoute(RTM_DELETE, prefix, m_ifindex, nullptr);
+bool MacosRouteMonitor::deleteRoute(const IPAddress& prefix, int flags) {
+  return rtmSendRoute(RTM_DELETE, prefix, m_ifindex, nullptr, flags);
 }
 
 bool MacosRouteMonitor::addExclusionRoute(const IPAddress& prefix) {

client/platforms/macos/daemon/macosroutemonitor.h

@@ -24,8 +24,8 @@ class MacosRouteMonitor final : public QObject {
   MacosRouteMonitor(const QString& ifname, QObject* parent = nullptr);
   ~MacosRouteMonitor();
 
-  bool insertRoute(const IPAddress& prefix);
-  bool deleteRoute(const IPAddress& prefix);
+  bool insertRoute(const IPAddress& prefix, int flags = 0);
+  bool deleteRoute(const IPAddress& prefix, int flags = 0);
   int interfaceFlags() { return m_ifflags; }
 
   bool addExclusionRoute(const IPAddress& prefix);
@@ -37,7 +37,7 @@ class MacosRouteMonitor final : public QObject {
   void handleRtmUpdate(const struct rt_msghdr* msg, const QByteArray& payload);
   void handleIfaceInfo(const struct if_msghdr* msg, const QByteArray& payload);
   bool rtmSendRoute(int action, const IPAddress& prefix, unsigned int ifindex,
-                    const void* gateway);
+                    const void* gateway, int flags = 0);
   bool rtmFetchRoutes(int family);
   static void rtmAppendAddr(struct rt_msghdr* rtm, size_t maxlen, int rtaddr,
                             const void* sa);

client/platforms/macos/daemon/wireguardutilsmacos.cpp

@@ -5,6 +5,7 @@
 #include "wireguardutilsmacos.h"
 
 #include <errno.h>
+#include <net/route.h>
 
 #include <QByteArray>
 #include <QDir>
@@ -130,7 +131,6 @@ bool WireguardUtilsMacos::addInterface(const InterfaceConfig& config) {
   }
 
   int err = uapiErrno(uapiCommand(message));
-
   if (err != 0) {
     logger.error() << "Interface configuration failed:" << strerror(err);
   } else {
@@ -211,7 +211,6 @@ bool WireguardUtilsMacos::updatePeer(const InterfaceConfig& config) {
     logger.warning() << "Failed to create peer with no endpoints";
     return false;
   }
-
   out << config.m_serverPort << "\n";
 
   out << "replace_allowed_ips=true\n";
@@ -323,10 +322,10 @@ bool WireguardUtilsMacos::deleteRoutePrefix(const IPAddress& prefix) {
   if (!m_rtmonitor) {
     return false;
   }
-  if (prefix.prefixLength() > 0) {
-    return m_rtmonitor->insertRoute(prefix);
-  }
 
+  if (prefix.prefixLength() > 0) {
+    return m_rtmonitor->deleteRoute(prefix);
+  }
   // Ensure that we do not replace the default route.
   if (prefix.type() == QAbstractSocket::IPv4Protocol) {
     return m_rtmonitor->deleteRoute(IPAddress("0.0.0.0/1")) &&
@@ -346,31 +345,6 @@ bool WireguardUtilsMacos::addExclusionRoute(const IPAddress& prefix) {
   return m_rtmonitor->addExclusionRoute(prefix);
 }
 
-void WireguardUtilsMacos::applyFirewallRules(FirewallParams& params)
-{
-  // double-check + ensure our firewall is installed and enabled. This is necessary as
-  // other software may disable pfctl before re-enabling with their own rules (e.g other VPNs)
-  if (!MacOSFirewall::isInstalled()) MacOSFirewall::install();
-
-  MacOSFirewall::ensureRootAnchorPriority();
-  MacOSFirewall::setAnchorEnabled(QStringLiteral("000.allowLoopback"), true);
-  MacOSFirewall::setAnchorEnabled(QStringLiteral("100.blockAll"), params.blockAll);
-  MacOSFirewall::setAnchorEnabled(QStringLiteral("110.allowNets"), params.allowNets);
-  MacOSFirewall::setAnchorTable(QStringLiteral("110.allowNets"), params.allowNets,
-                                QStringLiteral("allownets"), params.allowAddrs);
-
-  MacOSFirewall::setAnchorEnabled(QStringLiteral("120.blockNets"), params.blockNets);
-  MacOSFirewall::setAnchorTable(QStringLiteral("120.blockNets"), params.blockNets,
-                                QStringLiteral("blocknets"), params.blockAddrs);
-
-  MacOSFirewall::setAnchorEnabled(QStringLiteral("200.allowVPN"), true);
-  MacOSFirewall::setAnchorEnabled(QStringLiteral("250.blockIPv6"), true);
-  MacOSFirewall::setAnchorEnabled(QStringLiteral("290.allowDHCP"), true);
-  MacOSFirewall::setAnchorEnabled(QStringLiteral("300.allowLAN"), true);
-  MacOSFirewall::setAnchorEnabled(QStringLiteral("310.blockDNS"), true);
-  MacOSFirewall::setAnchorTable(QStringLiteral("310.blockDNS"), true, QStringLiteral("dnsaddr"), params.dnsServers);
-}
-
 bool WireguardUtilsMacos::deleteExclusionRoute(const IPAddress& prefix) {
   if (!m_rtmonitor) {
     return false;
@@ -378,6 +352,26 @@ bool WireguardUtilsMacos::deleteExclusionRoute(const IPAddress& prefix) {
   return m_rtmonitor->deleteExclusionRoute(prefix);
 }
 
+bool WireguardUtilsMacos::excludeLocalNetworks(const QList<IPAddress>& routes) {
+  if (!m_rtmonitor) {
+    return false;
+  }
+
+  // Explicitly discard LAN traffic that makes its way into the tunnel. This
+  // doesn't really exclude the LAN traffic, we just don't take any action to
+  // overrule the routes of other interfaces.
+  bool result = true;
+  for (const auto& prefix : routes) {
+    logger.error() << "Attempting to exclude:" << prefix.toString();
+    if (!m_rtmonitor->insertRoute(prefix, RTF_IFSCOPE | RTF_REJECT)) {
+      result = false;
+    }
+  }
+
+  // TODO: A kill switch would be nice though :)
+  return result;
+}
+
 QString WireguardUtilsMacos::uapiCommand(const QString& command) {
   QLocalSocket socket;
   QTimer uapiTimeout;
@@ -454,3 +448,28 @@ QString WireguardUtilsMacos::waitForTunnelName(const QString& filename) {
 
   return QString();
 }
+
+void WireguardUtilsMacos::applyFirewallRules(FirewallParams& params)
+{
+  // double-check + ensure our firewall is installed and enabled. This is necessary as
+  // other software may disable pfctl before re-enabling with their own rules (e.g other VPNs)
+  if (!MacOSFirewall::isInstalled()) MacOSFirewall::install();
+
+  MacOSFirewall::ensureRootAnchorPriority();
+  MacOSFirewall::setAnchorEnabled(QStringLiteral("000.allowLoopback"), true);
+  MacOSFirewall::setAnchorEnabled(QStringLiteral("100.blockAll"), params.blockAll);
+  MacOSFirewall::setAnchorEnabled(QStringLiteral("110.allowNets"), params.allowNets);
+  MacOSFirewall::setAnchorTable(QStringLiteral("110.allowNets"), params.allowNets,
+                                QStringLiteral("allownets"), params.allowAddrs);
+
+  MacOSFirewall::setAnchorEnabled(QStringLiteral("120.blockNets"), params.blockNets);
+  MacOSFirewall::setAnchorTable(QStringLiteral("120.blockNets"), params.blockNets,
+                                QStringLiteral("blocknets"), params.blockAddrs);
+
+  MacOSFirewall::setAnchorEnabled(QStringLiteral("200.allowVPN"), true);
+  MacOSFirewall::setAnchorEnabled(QStringLiteral("250.blockIPv6"), true);
+  MacOSFirewall::setAnchorEnabled(QStringLiteral("290.allowDHCP"), true);
+  MacOSFirewall::setAnchorEnabled(QStringLiteral("300.allowLAN"), true);
+  MacOSFirewall::setAnchorEnabled(QStringLiteral("310.blockDNS"), true);
+  MacOSFirewall::setAnchorTable(QStringLiteral("310.blockDNS"), true, QStringLiteral("dnsaddr"), params.dnsServers);
+}

client/platforms/macos/daemon/wireguardutilsmacos.h

@@ -35,6 +35,9 @@ class WireguardUtilsMacos final : public WireguardUtils {
 
   bool addExclusionRoute(const IPAddress& prefix) override;
   bool deleteExclusionRoute(const IPAddress& prefix) override;
+
+  bool excludeLocalNetworks(const QList<IPAddress>& lanAddressRanges) override;
+
   void applyFirewallRules(FirewallParams& params);
 
  signals: