1 files changed, 74 insertions, 0 deletions
diff --git a/netwerk/base/NetworkConnectivityService.h b/netwerk/base/NetworkConnectivityService.h
new file mode 100644
index 0000000000..d999309339
--- /dev/null
+++ b/netwerk/base/NetworkConnectivityService.h
@@ -0,0 +1,74 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef NetworkConnectivityService_h_
+#define NetworkConnectivityService_h_
+
+#include "nsINetworkConnectivityService.h"
+#include "nsIObserver.h"
+#include "nsIDNSListener.h"
+#include "nsIStreamListener.h"
+#include "mozilla/net/DNS.h"
+
+namespace mozilla {
+namespace net {
+
+class NetworkConnectivityService : public nsINetworkConnectivityService,
+                                   public nsIObserver,
+                                   public nsIDNSListener,
+                                   public nsIStreamListener {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSINETWORKCONNECTIVITYSERVICE
+  NS_DECL_NSIOBSERVER
+  NS_DECL_NSIDNSLISTENER
+  NS_DECL_NSISTREAMLISTENER
+  NS_DECL_NSIREQUESTOBSERVER
+
+  already_AddRefed<AddrInfo> MapNAT64IPs(AddrInfo* aNewRRSet);
+
+  static already_AddRefed<NetworkConnectivityService> GetSingleton();
+
+ private:
+  NetworkConnectivityService();
+  virtual ~NetworkConnectivityService() = default;
+
+  nsresult Init();
+  // Calls all the check methods
+  void PerformChecks();
+
+  void SaveNAT64Prefixes(nsIDNSRecord* aRecord);
+
+  already_AddRefed<nsIChannel> SetupIPCheckChannel(bool ipv4);
+
+  // Will be set to OK if the DNS request returned in IP of this type,
+  //                NOT_AVAILABLE if that type of resolution is not available
+  //                UNKNOWN if the check wasn't performed
+  Atomic<ConnectivityState, Relaxed> mDNSv4;
+  Atomic<ConnectivityState, Relaxed> mDNSv6;
+
+  Atomic<ConnectivityState, Relaxed> mIPv4;
+  Atomic<ConnectivityState, Relaxed> mIPv6;
+
+  Atomic<ConnectivityState, Relaxed> mNAT64;
+
+  nsTArray<NetAddr> mNAT64Prefixes;
+
+  nsCOMPtr<nsICancelable> mDNSv4Request;
+  nsCOMPtr<nsICancelable> mDNSv6Request;
+  nsCOMPtr<nsICancelable> mNAT64Request;
+
+  nsCOMPtr<nsIChannel> mIPv4Channel;
+  nsCOMPtr<nsIChannel> mIPv6Channel;
+
+  bool mCheckedNetworkId = false;
+  bool mHasNetworkId = false;
+
+  Mutex mLock MOZ_UNANNOTATED;
+};
+
+}  // namespace net
+}  // namespace mozilla
+
+#endif  // NetworkConnectivityService_h_