зеркало из https://github.com/mozilla/gecko-dev.git
165 строки
4.7 KiB
C++
165 строки
4.7 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <mach-o/dyld.h>
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#include <dlfcn.h>
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#include <unistd.h>
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#include "osx_wifi.h"
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#include "nsAutoPtr.h"
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#include "nsCOMArray.h"
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#include "nsWifiMonitor.h"
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#include "nsWifiAccessPoint.h"
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#include "nsServiceManagerUtils.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIMutableArray.h"
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using namespace mozilla;
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// defined in osx_corewlan.mm
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// basically relaces accesspoints in the passed reference
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// it lives in a separate file so that we can use objective c.
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extern nsresult GetAccessPointsFromWLAN(nsCOMArray<nsWifiAccessPoint> &accessPoints);
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nsresult
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nsWifiMonitor::DoScanWithCoreWLAN()
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{
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// Regularly get the access point data.
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nsCOMArray<nsWifiAccessPoint> lastAccessPoints;
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nsCOMArray<nsWifiAccessPoint> accessPoints;
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do {
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nsresult rv = GetAccessPointsFromWLAN(accessPoints);
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if (NS_FAILED(rv))
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return rv;
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bool accessPointsChanged = !AccessPointsEqual(accessPoints, lastAccessPoints);
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ReplaceArray(lastAccessPoints, accessPoints);
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rv = CallWifiListeners(lastAccessPoints, accessPointsChanged);
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NS_ENSURE_SUCCESS(rv, rv);
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// wait for some reasonable amount of time. pref?
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LOG(("waiting on monitor\n"));
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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mon.Wait(PR_SecondsToInterval(60));
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}
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while (mKeepGoing);
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return NS_OK;
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}
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nsresult
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nsWifiMonitor::DoScanOld()
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{
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void *apple_80211_library = dlopen(
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"/System/Library/PrivateFrameworks/Apple80211.framework/Apple80211",
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RTLD_LAZY);
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if (!apple_80211_library)
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return NS_ERROR_NOT_AVAILABLE;
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WirelessContextPtr wifi_context_;
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WirelessAttachFunction WirelessAttach_function_ = reinterpret_cast<WirelessAttachFunction>(dlsym(apple_80211_library, "WirelessAttach"));
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WirelessScanSplitFunction WirelessScanSplit_function_ = reinterpret_cast<WirelessScanSplitFunction>(dlsym(apple_80211_library, "WirelessScanSplit"));
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WirelessDetachFunction WirelessDetach_function_ = reinterpret_cast<WirelessDetachFunction>(dlsym(apple_80211_library, "WirelessDetach"));
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if (!WirelessAttach_function_ || !WirelessScanSplit_function_ || !WirelessDetach_function_) {
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dlclose(apple_80211_library);
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return NS_ERROR_NOT_AVAILABLE;
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}
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WIErr err = 0;
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err = (*WirelessAttach_function_)(&wifi_context_, 0);
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if (err != noErr) {
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printf("Error: WirelessAttach: %d\n", (int) err);
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dlclose(apple_80211_library);
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return NS_ERROR_FAILURE;
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}
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// Regularly get the access point data.
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nsCOMArray<nsWifiAccessPoint> lastAccessPoints;
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nsCOMArray<nsWifiAccessPoint> accessPoints;
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do {
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accessPoints.Clear();
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CFArrayRef managed_access_points = NULL;
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CFArrayRef adhoc_access_points = NULL;
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if ((*WirelessScanSplit_function_)(wifi_context_,
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&managed_access_points,
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&adhoc_access_points,
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0) != noErr) {
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return NS_ERROR_FAILURE;
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}
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if (managed_access_points == NULL) {
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return NS_ERROR_FAILURE;
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}
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int accessPointsCount = CFArrayGetCount(managed_access_points);
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for (int i = 0; i < accessPointsCount; ++i) {
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nsWifiAccessPoint* ap = new nsWifiAccessPoint();
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if (!ap)
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continue;
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const WirelessNetworkInfo *access_point_info =
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reinterpret_cast<const WirelessNetworkInfo*>(CFDataGetBytePtr(reinterpret_cast<const CFDataRef>(CFArrayGetValueAtIndex(managed_access_points, i))));
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ap->setMac(access_point_info->macAddress);
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// WirelessNetworkInfo::signal appears to be signal strength in dBm.
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ap->setSignal(access_point_info->signal);
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ap->setSSID(reinterpret_cast<const char*>(access_point_info->name),
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access_point_info->nameLen);
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accessPoints.AppendObject(ap);
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}
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bool accessPointsChanged = !AccessPointsEqual(accessPoints, lastAccessPoints);
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ReplaceArray(lastAccessPoints, accessPoints);
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nsresult rv = CallWifiListeners(lastAccessPoints, accessPointsChanged);
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if (NS_FAILED(rv)) {
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dlclose(apple_80211_library);
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return rv;
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}
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// wait for some reasonable amount of time. pref?
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LOG(("waiting on monitor\n"));
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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mon.Wait(PR_SecondsToInterval(60));
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}
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while (mKeepGoing);
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(*WirelessDetach_function_)(wifi_context_);
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dlclose(apple_80211_library);
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return NS_OK;
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}
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nsresult
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nsWifiMonitor::DoScan()
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{
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nsresult rv = DoScanWithCoreWLAN();
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// we can remove this once we stop caring about 10.5.
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if (NS_FAILED(rv))
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rv = DoScanOld();
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return rv;
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}
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