gecko/netwerk/wifi/nsWifiScannerSolaris.cpp

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Geolocation.
*
* The Initial Developer of the Original Code is Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2008
* the Initial Developer. All Rights Reserved.
*
* This is a derivative of work done by Google under a BSD style License.
* See: http://gears.googlecode.com/svn/trunk/gears/geolocation/
*
* Contributor(s):
* Doug Turner <dougt@meer.net> (Original Author)
* Ginn Chen <ginn.chen@sun.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsAutoPtr.h"
#include "nsWifiMonitor.h"
#include "nsWifiAccessPoint.h"
#include "nsIProxyObjectManager.h"
#include "nsServiceManagerUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsIMutableArray.h"
#include "plstr.h"
#include <glib.h>
#define DLADM_STRSIZE 256
#define DLADM_SECTIONS 3
struct val_strength_t {
const char *strength_name;
int signal_value;
};
static val_strength_t strength_vals[] = {
{ "very weak", -112 },
{ "weak", -88 },
{ "good", -68 },
{ "very good", -40 },
{ "excellent", -16 }
};
static nsWifiAccessPoint *
do_parse_str(char *bssid_str, char *essid_str, char *strength)
{
unsigned char mac_as_int[6] = { 0 };
sscanf(bssid_str, "%x:%x:%x:%x:%x:%x", &mac_as_int[0], &mac_as_int[1],
&mac_as_int[2], &mac_as_int[3], &mac_as_int[4], &mac_as_int[5]);
int signal = 0;
PRUint32 strength_vals_count = sizeof(strength_vals) / sizeof (val_strength_t);
for (PRUint32 i = 0; i < strength_vals_count; i++) {
if (!strncasecmp(strength, strength_vals[i].strength_name, DLADM_STRSIZE)) {
signal = strength_vals[i].signal_value;
break;
}
}
nsWifiAccessPoint *ap = new nsWifiAccessPoint();
if (ap) {
ap->setMac(mac_as_int);
ap->setSignal(signal);
ap->setSSID(essid_str, PL_strnlen(essid_str, DLADM_STRSIZE));
}
return ap;
}
static void
do_dladm(nsCOMArray<nsWifiAccessPoint> &accessPoints)
{
GError *err = NULL;
char *sout = NULL;
char *serr = NULL;
int exit_status = 0;
char * dladm_args[] = { "/usr/bin/pfexec", "/usr/sbin/dladm",
"scan-wifi", "-p", "-o", "BSSID,ESSID,STRENGTH" };
gboolean rv = g_spawn_sync("/", dladm_args, NULL, (GSpawnFlags)0, NULL, NULL,
&sout, &serr, &exit_status, &err);
if (rv && !exit_status) {
char wlan[DLADM_SECTIONS][DLADM_STRSIZE+1];
PRUint32 section = 0;
PRUint32 sout_scan = 0;
PRUint32 wlan_put = 0;
PRBool escape = PR_FALSE;
nsWifiAccessPoint* ap;
char sout_char;
do {
sout_char = sout[sout_scan++];
if (escape) {
escape = PR_FALSE;
if (sout_char != '\0') {
wlan[section][wlan_put++] = sout_char;
continue;
}
}
if (sout_char =='\\') {
escape = PR_TRUE;
continue;
}
if (sout_char == ':') {
wlan[section][wlan_put] = '\0';
section++;
wlan_put = 0;
continue;
}
if ((sout_char == '\0') || (sout_char == '\n')) {
wlan[section][wlan_put] = '\0';
if (section == DLADM_SECTIONS - 1) {
ap = do_parse_str(wlan[0], wlan[1], wlan[2]);
if (ap) {
accessPoints.AppendObject(ap);
}
}
section = 0;
wlan_put = 0;
continue;
}
wlan[section][wlan_put++] = sout_char;
} while ((wlan_put <= DLADM_STRSIZE) && (section < DLADM_SECTIONS) &&
(sout_char != '\0'));
}
g_free(sout);
g_free(serr);
}
nsresult
nsWifiMonitor::DoScan()
{
// Regularly get the access point data.
nsCOMArray<nsWifiAccessPoint> lastAccessPoints;
nsCOMArray<nsWifiAccessPoint> accessPoints;
while (mKeepGoing) {
accessPoints.Clear();
do_dladm(accessPoints);
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);
}
LOG(("waiting on monitor\n"));
nsAutoMonitor mon(mMonitor);
mon.Wait(PR_SecondsToInterval(60));
}
return NS_OK;
}