forked from mirrors/gecko-dev
144 lines
4 KiB
C++
144 lines
4 KiB
C++
/* 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/. */
|
|
|
|
#include "nsWifiMonitor.h"
|
|
#include "nsWifiAccessPoint.h"
|
|
|
|
#include "nsCRT.h"
|
|
#include "nsServiceManagerUtils.h"
|
|
#include "nsComponentManagerUtils.h"
|
|
|
|
#include <glib.h>
|
|
|
|
#define DLADM_STRSIZE 256
|
|
#define DLADM_SECTIONS 3
|
|
|
|
using namespace mozilla;
|
|
|
|
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;
|
|
uint32_t strength_vals_count = sizeof(strength_vals) / sizeof(val_strength_t);
|
|
for (uint32_t i = 0; i < strength_vals_count; i++) {
|
|
if (!nsCRT::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);
|
|
size_t len = essid_str ? strnlen(essid_str, DLADM_STRSIZE) : 0;
|
|
ap->setSSID(essid_str, len);
|
|
}
|
|
return ap;
|
|
}
|
|
|
|
static void do_dladm(nsCOMArray<nsWifiAccessPoint>& accessPoints) {
|
|
GError* err = nullptr;
|
|
char* sout = nullptr;
|
|
char* serr = nullptr;
|
|
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, nullptr, (GSpawnFlags)0, nullptr,
|
|
nullptr, &sout, &serr, &exit_status, &err);
|
|
if (rv && !exit_status) {
|
|
char wlan[DLADM_SECTIONS][DLADM_STRSIZE + 1];
|
|
uint32_t section = 0;
|
|
uint32_t sout_scan = 0;
|
|
uint32_t wlan_put = 0;
|
|
bool escape = false;
|
|
nsWifiAccessPoint* ap;
|
|
char sout_char;
|
|
do {
|
|
sout_char = sout[sout_scan++];
|
|
if (escape) {
|
|
escape = false;
|
|
if (sout_char != '\0') {
|
|
wlan[section][wlan_put++] = sout_char;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (sout_char == '\\') {
|
|
escape = 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);
|
|
|
|
bool accessPointsChanged =
|
|
!AccessPointsEqual(accessPoints, lastAccessPoints);
|
|
ReplaceArray(lastAccessPoints, accessPoints);
|
|
|
|
nsresult rv = CallWifiListeners(lastAccessPoints, accessPointsChanged);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
LOG(("waiting on monitor\n"));
|
|
|
|
ReentrantMonitorAutoEnter mon(mReentrantMonitor);
|
|
mon.Wait(PR_SecondsToInterval(kDefaultWifiScanInterval));
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|