public boolean isEnabled() throws KuraException {
try {
// Check if named is running
int pid = LinuxProcessUtil.getPid(s_procString);
return (pid > -1);
} catch (Exception e) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
}
}
public boolean disable() throws KuraException {
try {
int result = -1;
// If so, stop it.
if (OS_VERSION.equals(
KuraConstants.Mini_Gateway.getImageName()
+ "_"
+ KuraConstants.Mini_Gateway.getImageVersion())) {
result = LinuxProcessUtil.start("/etc/init.d/bind stop");
} else if (OS_VERSION.equals(KuraConstants.Raspberry_Pi.getImageName())
|| OS_VERSION.equals(KuraConstants.BeagleBone.getImageName())) {
result = LinuxProcessUtil.start("/etc/init.d/bind9 stop");
} else if (OS_VERSION.equals(
KuraConstants.Intel_Edison.getImageName()
+ "_"
+ KuraConstants.Intel_Edison.getImageVersion()
+ "_"
+ KuraConstants.Intel_Edison.getTargetName())) {
result = LinuxProcessUtil.start("/etc/init.d/bind stop");
} else if (OS_VERSION.equals(
KuraConstants.ReliaGATE_50_21_Ubuntu.getImageName()
+ "_"
+ KuraConstants.ReliaGATE_50_21_Ubuntu.getImageVersion())) {
result = LinuxProcessUtil.start("/etc/init.d/bind9 stop");
} else {
result = LinuxProcessUtil.start("/etc/init.d/named stop");
}
if (result == 0) {
s_logger.debug("DNS server stopped.");
s_logger.trace(m_dnsServerConfigIP4.toString());
return true;
} else {
s_logger.debug("tried to kill DNS server for interface but it is not running");
}
} catch (Exception e) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
}
return true;
}
public boolean restart() throws KuraException {
try {
if (LinuxProcessUtil.start("/etc/init.d/named restart") == 0) {
s_logger.debug("DNS server restarted.");
} else {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, "error restarting");
}
} catch (Exception e) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
}
return true;
}
public boolean enable() throws KuraException {
// write config happened during 'set config' step
try {
// Check if named is running
int pid = LinuxProcessUtil.getPid(s_procString);
if (pid > -1) {
// If so, disable it
s_logger.error("DNS server is already running, bringing it down...");
disable();
}
// Start named
int result = -1;
if (OS_VERSION.equals(
KuraConstants.Mini_Gateway.getImageName()
+ "_"
+ KuraConstants.Mini_Gateway.getImageVersion())) {
result = LinuxProcessUtil.start("/etc/init.d/bind start");
} else if (OS_VERSION.equals(
KuraConstants.ReliaGATE_10_05.getImageName()
+ "_"
+ KuraConstants.ReliaGATE_10_05.getImageVersion())) {
result = LinuxProcessUtil.start("/etc/init.d/bind start");
} else if (OS_VERSION.equals(KuraConstants.Raspberry_Pi.getImageName())
|| OS_VERSION.equals(KuraConstants.BeagleBone.getImageName())) {
result = LinuxProcessUtil.start("/etc/init.d/bind9 start");
} else if (OS_VERSION.equals(
KuraConstants.Intel_Edison.getImageName()
+ "_"
+ KuraConstants.Intel_Edison.getImageVersion()
+ "_"
+ KuraConstants.Intel_Edison.getTargetName())) {
result = LinuxProcessUtil.start("/etc/init.d/bind start");
} else if (OS_VERSION.equals(
KuraConstants.ReliaGATE_50_21_Ubuntu.getImageName()
+ "_"
+ KuraConstants.ReliaGATE_50_21_Ubuntu.getImageVersion())) {
result = LinuxProcessUtil.start("/etc/init.d/bind9 start");
} else {
s_logger.info("Linux named enable fallback");
result = LinuxProcessUtil.start("/etc/init.d/named start");
}
if (result == 0) {
s_logger.debug("DNS server started.");
s_logger.trace(m_dnsServerConfigIP4.toString());
return true;
}
} catch (Exception e) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
}
return false;
}
public void scan() throws KuraException {
String line = null;
ProcessStats processStats = null;
BufferedReader br = null;
String sScanCommand = formSupplicantScanCommand(m_iface);
// scan for wireless networks
try {
processStats = LinuxProcessUtil.startWithStats(sScanCommand);
} catch (Exception e) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
}
try {
br = new BufferedReader(new InputStreamReader(processStats.getInputStream()));
line = br.readLine();
if ((line == null) || !line.equals("OK")) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, sScanCommand + " command failed");
}
} catch (Exception e) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
} finally {
try {
br.close();
} catch (Exception e) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
}
}
// get scan results
String sScanResultsCommand = formSupplicantScanResultsCommand(m_iface);
try {
processStats = LinuxProcessUtil.startWithStats(sScanResultsCommand);
} catch (Exception e) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
}
try {
br = new BufferedReader(new InputStreamReader(processStats.getInputStream()));
String[] aScanInfo = null;
while ((line = br.readLine()) != null) {
aScanInfo = line.split("\\s+");
if (aScanInfo.length > 0) {
String macAddress = aScanInfo[0];
int frequency = Integer.parseInt(aScanInfo[1]);
int signalLevel = Integer.parseInt(aScanInfo[2]);
int securityCode = 0;
String sSecurity =
aScanInfo[3].substring(aScanInfo[3].indexOf("[") + 1, aScanInfo[3].lastIndexOf(']'));
StringTokenizer st = new StringTokenizer(sSecurity, "][");
while (st.hasMoreTokens()) {
String token = st.nextToken();
if (token.startsWith("WEP")) {
securityCode |= 1;
} else if (token.startsWith("WPA2")) {
securityCode |= 4;
} else if (token.startsWith("WPA")) {
securityCode |= 2;
}
}
WifiSecurity wifiSecurity = null;
switch (securityCode) {
case 1:
wifiSecurity = WifiSecurity.SECURITY_WEP;
break;
case 2:
wifiSecurity = WifiSecurity.SECURITY_WPA;
break;
case 4:
wifiSecurity = WifiSecurity.SECURITY_WPA2;
break;
case 6:
wifiSecurity = WifiSecurity.SECURITY_WPA_WPA2;
break;
default:
wifiSecurity = WifiSecurity.NONE;
}
String ssid = aScanInfo[4];
WifiHotspotInfo wifiHotspotInfo =
new WifiHotspotInfo(
ssid,
macAddress,
signalLevel,
frequencyMhz2Channel(frequency),
frequency,
wifiSecurity);
m_listWifiHotspotInfo.add(wifiHotspotInfo);
}
}
} catch (Exception e) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
} finally {
try {
br.close();
} catch (Exception e) {
throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
}
}
}