nsNetworkLinkService.h

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/* 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 NSNETWORKLINKSERVICEMAC_H_

#define NSNETWORKLINKSERVICEMAC_H_

#include "nsINetworkLinkService.h"

#include "nsIObserver.h"

#include "nsITimer.h"

#include "nsString.h"

#include "mozilla/Atomics.h"

#include "mozilla/Mutex.h"

#include "mozilla/SHA1.h"

#include <netinet/in.h>

#include <SystemConfiguration/SCNetworkReachability.h>

#include <SystemConfiguration/SystemConfiguration.h>

using prefix_and_netmask = std::pair<in6_addr, in6_addr>;

class nsNetworkLinkService : public nsINetworkLinkService,

                             public nsIObserver,

                             public nsITimerCallback,

                             public nsINamed {

 public:

  NS_DECL_THREADSAFE_ISUPPORTS

  NS_DECL_NSINETWORKLINKSERVICE

  NS_DECL_NSIOBSERVER

  NS_DECL_NSITIMERCALLBACK

  NS_DECL_NSINAMED

  nsNetworkLinkService();

  nsresult Init();

  nsresult Shutdown();

  static void HashSortedPrefixesAndNetmasks(

      std::vector<prefix_and_netmask> prefixAndNetmaskStore,

      mozilla::SHA1Sum* sha1);

 protected:

  virtual ~nsNetworkLinkService();

 private:

  bool mLinkUp;

  bool mStatusKnown;

  SCNetworkReachabilityRef mReachability;

  CFRunLoopRef mCFRunLoop;

  CFRunLoopSourceRef mRunLoopSource;

  SCDynamicStoreRef mStoreRef;

  bool IPv4NetworkId(mozilla::SHA1Sum* sha1);

  bool IPv6NetworkId(mozilla::SHA1Sum* sha1);

  void UpdateReachability();

  void OnIPConfigChanged();

  void OnNetworkIdChanged();

  void OnReachabilityChanged();

  void NotifyObservers(const char* aTopic, const char* aData);

  static void ReachabilityChanged(SCNetworkReachabilityRef target,

                                  SCNetworkConnectionFlags flags, void* info);

  static void NetworkConfigChanged(SCDynamicStoreRef store,

                                   CFArrayRef changedKeys, void* info);

  void calculateNetworkIdWithDelay(uint32_t aDelay);

  void calculateNetworkIdInternal(void);

  void DNSConfigChanged(uint32_t aDelayMs);

  void GetDnsSuffixListInternal();

  bool RoutingFromKernel(nsTArray<nsCString>& aHash);

  bool RoutingTable(nsTArray<nsCString>& aHash);

  mozilla::Mutex mMutex MOZ_UNANNOTATED;

  nsCString mNetworkId;

  nsTArray<nsCString> mDNSSuffixList;

  // The timer used to delay the calculation of network id since it takes some

  // time to discover the gateway's MAC address.

  nsCOMPtr<nsITimer> mNetworkIdTimer;

  // Scheduled timers used to delay querying of the DNS suffix list when

  // triggered by a network change. Guarded by mMutex.

  nsTArray<nsCOMPtr<nsITimer>> mDNSConfigChangedTimers;

  // IP address used to check the route for public traffic.

  struct in_addr mRouteCheckIPv4;

};

#endif /* NSNETWORKLINKSERVICEMAC_H_ */