private void Discover()
{
DiscoveredDevices.Clear();
txbDiscoveryOutput.Text = "";
string[] ipStartParts = txbDiscoveryStart.Text.Split('.');
string[] ipEndParts = txbDiscoveryEnd.Text.Split('.');
int deviceCount = 0;
int progressCounter = 0;
int rangeSize = Convert.ToInt32(ipEndParts[3]) - Convert.ToInt32(ipStartParts[3]);
bgwDiscovery.ReportProgress(-rangeSize);
bgwDiscovery.ReportProgress(0);
if (chbPingCheck.Checked)
{
rangeSize *= 2;
bgwDiscovery.ReportProgress(-rangeSize);
bgwDiscovery.ReportProgress(0);
bgwDiscovery.ReportProgress(2000000);
for (int i = Convert.ToInt32(ipStartParts[3]); i <= Convert.ToInt32(ipEndParts[3]); i++)
{
string currentIP = ipStartParts[0] + "." + ipStartParts[1] + "." + ipStartParts[2] + "." + i.ToString();
if (bgwDiscovery.CancellationPending)
{
return;
}
try
{
Ping ping = new Ping();
ping.Send(currentIP, 500);
FoundIPAtPercentage.Add(progressCounter, new Tuple <string, string>(currentIP, ""));
bgwDiscovery.ReportProgress(5000000 + progressCounter);
}
catch (Exception)
{ }
bgwDiscovery.ReportProgress(progressCounter++);
}
}
bgwDiscovery.ReportProgress(3000000);
// Start the discovery
for (int i = Convert.ToInt32(ipStartParts[3]); i <= Convert.ToInt32(ipEndParts[3]); i++)
{
if (bgwDiscovery.CancellationPending)
{
return;
}
string currentIP = ipStartParts[0] + "." + ipStartParts[1] + "." + ipStartParts[2] + "." + i.ToString();
string currentMAC = NetExplore.GetMacAddress(currentIP);
if (!string.IsNullOrEmpty(currentMAC))
{
string currentHostname = NetExplore.GetMachineNameFromIPAddress(currentIP);
NetDevice ntd = new NetDevice
{
IPv4 = currentIP,
MAC = currentMAC,
Hostname = currentHostname,
Name = "Device-" + currentMAC
};
FoundIPAtPercentage.Add(progressCounter, new Tuple <string, string>(currentIP, currentHostname));
bgwDiscovery.ReportProgress(4000000 + progressCounter);
DiscoveredDevices.Add(ntd);
deviceCount++;
}
bgwDiscovery.ReportProgress(progressCounter++);
}
MessageBox.Show("Discovery finished!" + Environment.NewLine + $"Found a total of {DiscoveredDevices.Count} devices.", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
private void bgwUpdateEntries_DoWork(object sender, DoWorkEventArgs e)
{
Dictionary <string, bool> DevicePowerState = new Dictionary <string, bool>();
// Get all devices, set powerstate to false
DevicePowerState.Clear();
sql.Open();
using (SQLiteDataReader reader = sql.ExecuteQuery("SELECT * FROM Devices"))
while (reader.Read())
{
DevicePowerState.Add(Convert.ToString(reader["MACAddress"]), false);
}
sql.Close();
Ping ping = new Ping();
StringBuilder sqlSB = new StringBuilder();
if (ipStartParts[0] == ipEndParts[0] && ipStartParts[1] == ipEndParts[1] && ipStartParts[2] == ipEndParts[2])
{
for (int i = Convert.ToInt32(ipStartParts[3]); i <= Convert.ToInt32(ipEndParts[3]); i++)
{
if (bgwUpdateEntries.CancellationPending)
{
return;
}
bgwUpdateEntries.ReportProgress(i);
string currentIP = ipStartParts[0] + "." + ipStartParts[1] + "." + ipStartParts[2] + "." + i.ToString();
PingReply reply = ping.Send(currentIP, 100);
if (reply.Status == IPStatus.Success)
{
string currentMAC = NetExplore.GetMacAddress(currentIP);
if (!string.IsNullOrEmpty(currentMAC))
{
// Update the power-state of the device
if (DevicePowerState.ContainsKey(currentMAC))
{
// Known device, only update values
DevicePowerState[currentMAC] = true;
sqlSB.Append($"UPDATE Devices SET IP4Address = '{currentIP}', LastSeen = '{DateTime.Now:yyyy-MM-dd H:mm:ss}' WHERE MACAddress = '{currentMAC}';");
}
else
{
// New, unknown device, add to DB
DevicePowerState.Add(currentMAC, true);
sqlSB.Append($"INSERT INTO Devices (MACAddress, DeviceType, Name, IP4Address, LastSeen) VALUES ('{currentMAC}','{DeviceType.UnknownDevice}','Device-{currentMAC}','{currentIP}','{DateTime.Now:yyyy-MM-dd H:mm:ss}')");
}
}
}
else
{
continue;
}
}
if (bgwUpdateEntries.CancellationPending)
{
return;
}
// Update IP and LastSeen, add new entries
sql.ExecuteNonQueryACon(sqlSB.ToString());
// Update last power-state
StringBuilder sb = new StringBuilder();
foreach (KeyValuePair <string, bool> entry in DevicePowerState)
{
int state = 0;
if (entry.Value)
{
state = 1;
}
sb.Append($"UPDATE Devices SET LastPowerState = '{state}' WHERE MACAddress = '{entry.Key}';");
}
sql.ExecuteNonQueryACon(sb.ToString());
}
}
public static void PowerStateCheck(string pIPRangeStart, string pIPRangeEnd, BackgroundWorker pProgressReplyBGW = null)
{
using (WrapSQLite tsql = new WrapSQLite(SurgitManager.SurgitDatabaseLocation, true))
{
Dictionary <string, bool> DevicePowerState = new Dictionary <string, bool>();
// Get all devices, set powerstate to false
DevicePowerState.Clear();
tsql.Open();
using (SQLiteDataReader reader = tsql.ExecuteQuery("SELECT * FROM Devices"))
while (reader.Read())
{
DevicePowerState.Add(Convert.ToString(reader["MACAddress"]), false);
}
tsql.Close();
// Ping all devices in Network Range
Ping ping = new Ping();
StringBuilder sqlSB = new StringBuilder();
if (CheckIPClassCValidity(pIPRangeStart, pIPRangeEnd))
{
string[] ipStartParts = pIPRangeStart.Split('.');
string[] ipEndParts = pIPRangeEnd.Split('.');
for (int i = Convert.ToInt32(ipStartParts[3]); i <= Convert.ToInt32(ipEndParts[3]); i++)
{
if (pProgressReplyBGW.CancellationPending)
{
return;
}
if (pProgressReplyBGW != null)
{
pProgressReplyBGW.ReportProgress(i);
}
string currentIP = ipStartParts[0] + "." + ipStartParts[1] + "." + ipStartParts[2] + "." + i.ToString();
PingReply reply = ping.Send(currentIP, 100);
if (reply.Status == IPStatus.Success)
{
string currentMAC = NetExplore.GetMacAddress(currentIP);
if (!string.IsNullOrEmpty(currentMAC))
{
// Update the power-state of the device
if (DevicePowerState.ContainsKey(currentMAC))
{
// Known device, only update values
DevicePowerState[currentMAC] = true;
sqlSB.Append($"UPDATE Devices SET IP4Address = '{currentIP}', LastSeen = '{DateTime.Now:yyyy-MM-dd H:mm:ss}' WHERE MACAddress = '{currentMAC}';");
}
else
{
// New, unknown device, add to DB
DevicePowerState.Add(currentMAC, true);
sqlSB.Append($"INSERT INTO Devices (MACAddress, DeviceType, Name, IP4Address, LastSeen) VALUES ('{currentMAC}','{DeviceType.UnknownDevice}','Device-{currentMAC}','{currentIP}','{DateTime.Now:yyyy-MM-dd H:mm:ss}')");
}
}
}
else
{
continue;
}
}
// Update IP and LastSeen, add new entries
tsql.ExecuteNonQueryACon(sqlSB.ToString());
// Update last power-state
StringBuilder sb = new StringBuilder();
foreach (KeyValuePair <string, bool> entry in DevicePowerState)
{
sb.Append($"UPDATE Devices SET LastPowerState = '{(entry.Value ? 1 : 0)}' WHERE MACAddress = '{entry.Key}';");
}
tsql.ExecuteNonQueryACon(sb.ToString());
}
else
{
if (pProgressReplyBGW.CancellationPending)
{
return;
}
MessageBox.Show("The given range is not valid. Make sure the IPs are in the same subnet. Note: Only C-Class IP-Adresses are currently supported", "Invalid Range", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
}