nsresult
nsWifiMonitor::DoScan()
{
nsCOMArray<nsWifiAccessPoint> accessPoints;
mozilla::nsWifiScannerDBus wifiScanner(&accessPoints);
nsCOMArray<nsWifiAccessPoint> lastAccessPoints;
while (mKeepGoing) {
accessPoints.Clear();
nsresult rv = wifiScanner.Scan();
NS_ENSURE_SUCCESS(rv, rv);
bool accessPointsChanged = !AccessPointsEqual(accessPoints,
lastAccessPoints);
ReplaceArray(lastAccessPoints, accessPoints);
rv = CallWifiListeners(lastAccessPoints, accessPointsChanged);
NS_ENSURE_SUCCESS(rv, rv);
LOG(("waiting on monitor\n"));
mozilla::ReentrantMonitorAutoEnter mon(mReentrantMonitor);
mon.Wait(PR_SecondsToInterval(kDefaultWifiScanInterval));
}
return NS_OK;
}
nsresult
nsWifiMonitor::DoScan()
{
void* iwlib_handle = dlopen("libiw.so", RTLD_NOW);
if (!iwlib_handle) {
iwlib_handle = dlopen("libiw.so.29", RTLD_NOW);
if (!iwlib_handle) {
iwlib_handle = dlopen("libiw.so.30", RTLD_NOW);
if (!iwlib_handle) {
LOG(("Could not load libiw\n"));
return NS_ERROR_NOT_AVAILABLE;
}
}
}
else {
LOG(("Loaded libiw\n"));
}
iw_open_t iw_open = (iw_open_t) dlsym(iwlib_handle, "iw_sockets_open");
iw_enum_t iw_enum = (iw_enum_t) dlsym(iwlib_handle, "iw_enum_devices");
iw_stats_t iw_stats = (iw_stats_t)dlsym(iwlib_handle, "iw_get_stats");
if (!iw_open || !iw_enum || !iw_stats) {
dlclose(iwlib_handle);
LOG(("Could not load a symbol from iwlib.so\n"));
return NS_ERROR_FAILURE;
}
int skfd = (*iw_open)();
if (skfd < 0) {
dlclose(iwlib_handle);
return NS_ERROR_FAILURE;
}
nsCOMArray<nsWifiAccessPoint> lastAccessPoints;
nsCOMArray<nsWifiAccessPoint> accessPoints;
char* args[] = {(char*) &accessPoints, (char*) iw_stats, nsnull };
while (mKeepGoing) {
accessPoints.Clear();
(*iw_enum)(skfd, &scan_wifi, args, 1);
PRBool accessPointsChanged = !AccessPointsEqual(accessPoints, lastAccessPoints);
nsCOMArray<nsIWifiListener> currentListeners;
{
nsAutoMonitor mon(mMonitor);
for (PRUint32 i = 0; i < mListeners.Length(); i++) {
if (!mListeners[i].mHasSentData || accessPointsChanged) {
mListeners[i].mHasSentData = PR_TRUE;
currentListeners.AppendObject(mListeners[i].mListener);
}
}
}
ReplaceArray(lastAccessPoints, accessPoints);
if (currentListeners.Count() > 0)
{
PRUint32 resultCount = lastAccessPoints.Count();
nsIWifiAccessPoint** result = static_cast<nsIWifiAccessPoint**> (nsMemory::Alloc(sizeof(nsIWifiAccessPoint*) * resultCount));
if (!result) {
dlclose(iwlib_handle);
return NS_ERROR_OUT_OF_MEMORY;
}
for (PRUint32 i = 0; i < resultCount; i++)
result[i] = lastAccessPoints[i];
for (PRInt32 i = 0; i < currentListeners.Count(); i++) {
LOG(("About to send data to the wifi listeners\n"));
nsCOMPtr<nsIWifiListener> proxy;
nsCOMPtr<nsIProxyObjectManager> proxyObjMgr = do_GetService("@mozilla.org/xpcomproxy;1");
proxyObjMgr->GetProxyForObject(NS_PROXY_TO_MAIN_THREAD,
NS_GET_IID(nsIWifiListener),
currentListeners[i],
NS_PROXY_SYNC | NS_PROXY_ALWAYS,
getter_AddRefs(proxy));
if (!proxy) {
LOG(("There is no proxy available. this should never happen\n"));
}
else
{
nsresult rv = proxy->OnChange(result, resultCount);
LOG( ("... sent %d\n", rv));
}
}
nsMemory::Free(result);
}
LOG(("waiting on monitor\n"));
nsAutoMonitor mon(mMonitor);
mon.Wait(PR_SecondsToInterval(60));
}
iw_sockets_close(skfd);
return NS_OK;
}
nsresult
nsWifiMonitor::DoScanWithCoreWLAN()
{
// Regularly get the access point data.
nsCOMArray<nsWifiAccessPoint> lastAccessPoints;
nsCOMArray<nsWifiAccessPoint> accessPoints;
do {
nsresult rv = GetAccessPointsFromWLAN(accessPoints);
if (NS_FAILED(rv))
return rv;
PRBool accessPointsChanged = !AccessPointsEqual(accessPoints, lastAccessPoints);
nsCOMArray<nsIWifiListener> currentListeners;
{
nsAutoMonitor mon(mMonitor);
for (PRUint32 i = 0; i < mListeners.Length(); i++) {
if (!mListeners[i].mHasSentData || accessPointsChanged) {
mListeners[i].mHasSentData = PR_TRUE;
currentListeners.AppendObject(mListeners[i].mListener);
}
}
}
ReplaceArray(lastAccessPoints, accessPoints);
if (currentListeners.Count() > 0)
{
PRUint32 resultCount = lastAccessPoints.Count();
nsIWifiAccessPoint** result = static_cast<nsIWifiAccessPoint**> (nsMemory::Alloc(sizeof(nsIWifiAccessPoint*) * resultCount));
if (!result) {
return NS_ERROR_OUT_OF_MEMORY;
}
for (PRUint32 i = 0; i < resultCount; i++)
result[i] = lastAccessPoints[i];
for (PRInt32 i = 0; i < currentListeners.Count(); i++) {
LOG(("About to send data to the wifi listeners\n"));
nsCOMPtr<nsIWifiListener> proxy;
nsCOMPtr<nsIProxyObjectManager> proxyObjMgr = do_GetService("@mozilla.org/xpcomproxy;1");
proxyObjMgr->GetProxyForObject(NS_PROXY_TO_MAIN_THREAD,
NS_GET_IID(nsIWifiListener),
currentListeners[i],
NS_PROXY_SYNC | NS_PROXY_ALWAYS,
getter_AddRefs(proxy));
if (!proxy) {
LOG(("There is no proxy available. this should never happen\n"));
}
else
{
nsresult rv = proxy->OnChange(result, resultCount);
LOG( ("... sent %d\n", rv));
}
}
nsMemory::Free(result);
}
// wait for some reasonable amount of time. pref?
LOG(("waiting on monitor\n"));
nsAutoMonitor mon(mMonitor);
mon.Wait(PR_SecondsToInterval(60));
}
while (mKeepGoing);
return NS_OK;
}
nsresult
nsWifiMonitor::DoScanOld()
{
void *apple_80211_library = dlopen(
"/System/Library/PrivateFrameworks/Apple80211.framework/Apple80211",
RTLD_LAZY);
if (!apple_80211_library)
return NS_ERROR_NOT_AVAILABLE;
WirelessContextPtr wifi_context_;
WirelessAttachFunction WirelessAttach_function_ = reinterpret_cast<WirelessAttachFunction>(dlsym(apple_80211_library, "WirelessAttach"));
WirelessScanSplitFunction WirelessScanSplit_function_ = reinterpret_cast<WirelessScanSplitFunction>(dlsym(apple_80211_library, "WirelessScanSplit"));
WirelessDetachFunction WirelessDetach_function_ = reinterpret_cast<WirelessDetachFunction>(dlsym(apple_80211_library, "WirelessDetach"));
if (!WirelessAttach_function_ || !WirelessScanSplit_function_ || !WirelessDetach_function_) {
dlclose(apple_80211_library);
return NS_ERROR_NOT_AVAILABLE;
}
WIErr err = 0;
err = (*WirelessAttach_function_)(&wifi_context_, 0);
if (err != noErr) {
printf("Error: WirelessAttach: %d\n", (int) err);
dlclose(apple_80211_library);
return NS_ERROR_FAILURE;
}
// Regularly get the access point data.
nsCOMArray<nsWifiAccessPoint> lastAccessPoints;
nsCOMArray<nsWifiAccessPoint> accessPoints;
do {
accessPoints.Clear();
CFArrayRef managed_access_points = NULL;
CFArrayRef adhoc_access_points = NULL;
if ((*WirelessScanSplit_function_)(wifi_context_,
&managed_access_points,
&adhoc_access_points,
0) != noErr) {
return NS_ERROR_FAILURE;
}
if (managed_access_points == NULL) {
return NS_ERROR_FAILURE;
}
int accessPointsCount = CFArrayGetCount(managed_access_points);
for (int i = 0; i < accessPointsCount; ++i) {
nsWifiAccessPoint* ap = new nsWifiAccessPoint();
if (!ap)
continue;
const WirelessNetworkInfo *access_point_info =
reinterpret_cast<const WirelessNetworkInfo*>(CFDataGetBytePtr(reinterpret_cast<const CFDataRef>(CFArrayGetValueAtIndex(managed_access_points, i))));
ap->setMac(access_point_info->macAddress);
// WirelessNetworkInfo::signal appears to be signal strength in dBm.
ap->setSignal(access_point_info->signal);
ap->setSSID(reinterpret_cast<const char*>(access_point_info->name),
access_point_info->nameLen);
accessPoints.AppendObject(ap);
}
PRBool accessPointsChanged = !AccessPointsEqual(accessPoints, lastAccessPoints);
nsCOMArray<nsIWifiListener> currentListeners;
{
nsAutoMonitor mon(mMonitor);
for (PRUint32 i = 0; i < mListeners.Length(); i++) {
if (!mListeners[i].mHasSentData || accessPointsChanged) {
mListeners[i].mHasSentData = PR_TRUE;
currentListeners.AppendObject(mListeners[i].mListener);
}
}
}
ReplaceArray(lastAccessPoints, accessPoints);
if (currentListeners.Count() > 0)
{
PRUint32 resultCount = lastAccessPoints.Count();
nsIWifiAccessPoint** result = static_cast<nsIWifiAccessPoint**> (nsMemory::Alloc(sizeof(nsIWifiAccessPoint*) * resultCount));
if (!result) {
dlclose(apple_80211_library);
return NS_ERROR_OUT_OF_MEMORY;
}
for (PRUint32 i = 0; i < resultCount; i++)
result[i] = lastAccessPoints[i];
for (PRInt32 i = 0; i < currentListeners.Count(); i++) {
LOG(("About to send data to the wifi listeners\n"));
nsCOMPtr<nsIWifiListener> proxy;
nsCOMPtr<nsIProxyObjectManager> proxyObjMgr = do_GetService("@mozilla.org/xpcomproxy;1");
proxyObjMgr->GetProxyForObject(NS_PROXY_TO_MAIN_THREAD,
NS_GET_IID(nsIWifiListener),
currentListeners[i],
NS_PROXY_SYNC | NS_PROXY_ALWAYS,
getter_AddRefs(proxy));
if (!proxy) {
LOG(("There is no proxy available. this should never happen\n"));
}
else
{
nsresult rv = proxy->OnChange(result, resultCount);
LOG( ("... sent %d\n", rv));
}
}
nsMemory::Free(result);
}
// wait for some reasonable amount of time. pref?
LOG(("waiting on monitor\n"));
nsAutoMonitor mon(mMonitor);
mon.Wait(PR_SecondsToInterval(60));
}
while (mKeepGoing);
(*WirelessDetach_function_)(wifi_context_);
dlclose(apple_80211_library);
return NS_OK;
}
