/// <summary>
/// Generate LLDP packet for adapter
/// </summary>
/// <param name="adapter"></param>
private Packet CreateLLDPPacket(NetworkInterface adapter, PacketInfo pinfo)
{
Debug.IndentLevel = 2;
PhysicalAddress MACAddress = adapter.GetPhysicalAddress();
IPInterfaceProperties ipProperties = adapter.GetIPProperties();
IPv4InterfaceProperties ipv4Properties = null; // Ipv4
IPv6InterfaceProperties ipv6Properties = null;// Ipv6
// IPv6
if (adapter.Supports(NetworkInterfaceComponent.IPv6))
{
try
{
ipv6Properties = ipProperties.GetIPv6Properties();
}
catch (NetworkInformationException e)
{
// Adapter doesn't probably have IPv6 enabled
Debug.WriteLine(e.Message, EventLogEntryType.Warning);
}
}
// IPv4
if (adapter.Supports(NetworkInterfaceComponent.IPv4))
{
try
{
ipv4Properties = ipProperties.GetIPv4Properties();
}
catch (NetworkInformationException e)
{
// Adapter doesn't probably have IPv4 enabled
Debug.WriteLine(e.Message, EventLogEntryType.Warning);
}
}
// System description
Dictionary<string, string> systemDescription = new Dictionary<string, string>();
systemDescription.Add("OS", pinfo.OperatingSystem);
systemDescription.Add("Ver", pinfo.OperatingSystemVersion);
systemDescription.Add("User", pinfo.Username);
systemDescription.Add("Uptime", pinfo.Uptime);
// Port description
Dictionary<string, string> portDescription = new Dictionary<string, string>();
// adapter.Description is for example "Intel(R) 82579V Gigabit Network Connection"
// Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkCards\<number>\Description value
portDescription.Add("Vendor", adapter.Description);
/*
adapter.Id is GUID and can be found in several places:
In this example it is "{87423023-7191-4C03-A049-B8E7DBB36DA4}"
Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
- \NetworkCards\<number>\ServiceName value (in same tree as adapter.Description!)
- \NetworkList\Nla\Cache\Intranet\<adapter.Id> key
- \NetworkList\Nla\Cache\Intranet\<domain>\<adapter.Id> key
Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion
- \NetworkCards\<number>\ServiceName value
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}\0007
{4D36E972-E325-11CE-BFC1-08002BE10318} == Network and Sharing Center -> viewing adapter's "Properties" and selecting "Device class GUID" from dropdown menu
{4D36E972-E325-11CE-BFC1-08002BE10318}\0007 == Network and Sharing Center -> viewing adapter's "Properties" and selecting "Driver key" from dropdown menu
- \NetCfgInstanceId value
- \Linkage\Export value (part of)
- \Linkage\FilterList value (part of)
- \Linkage\RootDevice value
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceClasses\{ad498944-762f-11d0-8dcb-00c04fc3358c}\##?#PCI#VEN_8086&DEV_1503&SUBSYS_849C1043&REV_06#3&11583659&0&C8#{ad498944-762f-11d0-8dcb-00c04fc3358c}\#{87423023-7191-4C03-A049-B8E7DBB36DA4}\SymbolicLink value (part of)
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\{ 4D36E972 - E325 - 11CE - BFC1 - 08002BE10318}\{ 87423023 - 7191 - 4C03 - A049 - B8E7DBB36DA4}
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}\{ACB3F7A0-2E45-4435-854A-A4E120477E1D}\Connection\Name value (part of)
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\{ 87423023 - 7191 - 4C03 - A049 - B8E7DBB36DA4}
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iphlpsvc\Parameters\Isatap\{ ACB3F7A0 - 2E45 - 4435 - 854A - A4E120477E1D}\InterfaceName value (part of)
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\<various names>\Linkage
- \Bind value (part of)
- \Export value (part of)
- \Route value (part of)
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\NetBT\Parameters\Interfaces\Tcpip_{87423023-7191-4C03-A049-B8E7DBB36DA4}
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Psched\Parameters\NdisAdapters\{87423023-7191-4C03-A049-B8E7DBB36DA4}
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\RemoteAccess\Interfaces\<number>\InterfaceName value
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters\Adapters\{87423023-7191-4C03-A049-B8E7DBB36DA4}\IpConfig value (part of)
IPv4 information:
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters\Interfaces\{87423023-7191-4C03-A049-B8E7DBB36DA4}
IPv6 information:
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\TCPIP6\Parameters\Interfaces\{87423023-7191-4c03-a049-b8e7dbb36da4}
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WfpLwf\Parameters\NdisAdapters\{87423023-7191-4C03-A049-B8E7DBB36DA4}
*/
portDescription.Add("ID", adapter.Id);
// Gateway
if (ipProperties.GatewayAddresses.Count > 0)
{
portDescription.Add("GW", String.Join(", ", ipProperties.GatewayAddresses.Select(i => i.Address.ToString()).ToArray()));
}
else
{
portDescription.Add("GW", "-");
}
// CIDR
if (ipProperties.UnicastAddresses.Count > 0)
{
int[] mask = ipProperties.UnicastAddresses
.Where(
w => w.IPv4Mask.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork
)
.Select(x => getCIDRFromIPMaskAddress(x.IPv4Mask))
.ToArray()
;
portDescription.Add("CIDR", String.Join(", ", mask));
}
else
{
portDescription.Add("CIDR", "-");
}
// DNS server(s)
if (ipProperties.DnsAddresses.Count > 0)
{
portDescription.Add("DNS", String.Join(", ", ipProperties.DnsAddresses.Select(i => i.ToString()).ToArray()));
}
else
{
portDescription.Add("DNS", "-");
}
// DHCP server
if (ipProperties.DhcpServerAddresses.Count > 0)
{
portDescription.Add("DHCP", String.Join(", ", ipProperties.DhcpServerAddresses.Select(i => i.ToString()).ToArray()));
}
else
{
portDescription.Add("DHCP", "-");
}
// WINS server(s)
if (ipProperties.WinsServersAddresses.Count > 0)
{
portDescription.Add("WINS", String.Join(", ", ipProperties.WinsServersAddresses.Select(i => i.ToString()).ToArray()));
}
// Link speed
portDescription.Add("Speed", ReadableSize(adapter.Speed) + "ps");
// Capabilities enabled
List<CapabilityOptions> capabilitiesEnabled = new List<CapabilityOptions>();
capabilitiesEnabled.Add(CapabilityOptions.StationOnly);
if (ipv4Properties.IsForwardingEnabled)
{
capabilitiesEnabled.Add(CapabilityOptions.Router);
}
ushort expectedSystemCapabilitiesCapability = GetCapabilityOptionsBits(GetCapabilityOptions());
ushort expectedSystemCapabilitiesEnabled = GetCapabilityOptionsBits(capabilitiesEnabled);
// Constuct LLDP packet
LLDPPacket lldpPacket = new LLDPPacket();
lldpPacket.TlvCollection.Add(new ChassisID(ChassisSubTypes.MACAddress, MACAddress));
lldpPacket.TlvCollection.Add(new PortID(PortSubTypes.LocallyAssigned, System.Text.Encoding.UTF8.GetBytes(adapter.Name)));
lldpPacket.TlvCollection.Add(new TimeToLive(120));
lldpPacket.TlvCollection.Add(new PortDescription(CreateTlvString(portDescription)));
lldpPacket.TlvCollection.Add(new SystemName(Environment.MachineName));
lldpPacket.TlvCollection.Add(new SystemDescription(CreateTlvString(systemDescription)));
lldpPacket.TlvCollection.Add(new SystemCapabilities(expectedSystemCapabilitiesCapability, expectedSystemCapabilitiesEnabled));
// Management
var managementAddressObjectIdentifier = "Management";
// Add management IPv4 address(es)
if (null != ipv4Properties)
{
foreach (UnicastIPAddressInformation ip in ipProperties.UnicastAddresses)
{
if (ip.Address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
lldpPacket.TlvCollection.Add(new ManagementAddress(new NetworkAddress(ip.Address), InterfaceNumbering.SystemPortNumber, Convert.ToUInt32(ipv4Properties.Index), managementAddressObjectIdentifier));
}
}
}
// Add management IPv6 address(es)
if (null != ipv6Properties)
{
foreach (UnicastIPAddressInformation ip in ipProperties.UnicastAddresses)
{
if (ip.Address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6)
{
lldpPacket.TlvCollection.Add(new ManagementAddress(new NetworkAddress(ip.Address), InterfaceNumbering.SystemPortNumber, Convert.ToUInt32(ipv6Properties.Index), managementAddressObjectIdentifier));
}
}
}
// == Organization specific TLVs
// Ethernet
lldpPacket.TlvCollection.Add(new OrganizationSpecific(new byte[] { 0x0, 0x12, 0x0f }, 5, new byte[] { 0x5 }));
var expectedOrganizationUniqueIdentifier = new byte[3] { 0, 0, 0 };
var expectedOrganizationSpecificBytes = new byte[] { 0, 0, 0, 0 };
//int orgSubType = 0;
// IPv4 Information:
//if (null != ipv4Properties)
//{
// lldpPacket.TlvCollection.Add((new StringTLV(TLVTypes.OrganizationSpecific, String.Format("IPv4 DHCP: {0}", ipv4Properties.IsDhcpEnabled.ToString()))));
//lldpPacket.TlvCollection.Add(new OrganizationSpecific(expectedOrganizationSpecificBytes, new StringTLV(), System.Text.Encoding.UTF8.GetBytes(String.Format("IPv4 DHCP: {0}", ipv4Properties.IsDhcpEnabled.ToString()))));
//}
// End of LLDP packet
lldpPacket.TlvCollection.Add(new EndOfLLDPDU());
if (0 == lldpPacket.TlvCollection.Count)
{
throw new Exception("Couldn't construct LLDP TLVs.");
}
if (lldpPacket.TlvCollection.Last().GetType() != typeof(EndOfLLDPDU))
{
throw new Exception("Last TLV must be type of 'EndOfLLDPDU'!");
}
foreach (TLV tlv in lldpPacket.TlvCollection)
{
Debug.WriteLine(tlv.ToString(), EventLogEntryType.Information);
}
// Generate packet
Packet packet = new EthernetPacket(MACAddress, destinationHW, EthernetPacketType.LLDP);
packet.PayloadData = lldpPacket.Bytes;
return packet;
}
public bool Run()
{
Debug.IndentLevel = 1;
List<NetworkInterface> adapters = new List<NetworkInterface>();
// Get list of connected adapters
Debug.WriteLine("Getting connected adapter list", EventLogEntryType.Information);
adapters = NetworkInterface.GetAllNetworkInterfaces()
.Where(
x =>
x.NetworkInterfaceType != NetworkInterfaceType.Loopback
&&
x.OperationalStatus == OperationalStatus.Up
)
.ToList();
if (0 == adapters.Count)
{
Debug.WriteLine("No adapters found.", EventLogEntryType.Information);
// No available adapters
return true;
}
// Open network devices for sending raw packets
OpenDevices();
// Get list of users
List<string> users = GetUsers();
if (users.Count == 0)
{
Debug.WriteLine("NoUsers", EventLogEntryType.Error);
}
// Wait to open devices
System.Threading.Thread.Sleep(Convert.ToInt32(TimeSpan.FromSeconds(1).TotalMilliseconds));
// Get information which doesn't change often or doesn't need to be 100% accurate in realtime when iterating through adapters
PacketInfo pinfo = new PacketInfo();
pinfo.OperatingSystem = FriendlyName().Trim();
pinfo.OperatingSystemVersion = "";
pinfo.Username = String.Join(",", users).Trim().TrimEnd(',');
pinfo.Uptime = GetUptime();
foreach (NetworkInterface adapter in adapters)
{
Debug.WriteLine(String.Format("Adapter {0}:", adapter.Name), EventLogEntryType.Information);
try
{
Debug.WriteLine("Generating packet", EventLogEntryType.Information);
Packet packet = CreateLLDPPacket(adapter, pinfo);
Debug.IndentLevel = 1;
Debug.WriteLine("Sending packet", EventLogEntryType.Information);
sendRawPacket(adapter, packet);
Debug.IndentLevel = 1;
}
catch (Exception e)
{
Debug.WriteLine(String.Format("Error sending packet:{0}{1}", Environment.NewLine, e.ToString()), EventLogEntryType.Error);
}
Debug.WriteLine("", EventLogEntryType.Information);
Debug.WriteLine(new String('-', 40), EventLogEntryType.Information);
Debug.IndentLevel = 1;
}
return true;
}
/// <summary>
/// Generate LLDP packet for adapter
/// </summary>
/// <param name="adapter"></param>
private Packet CreateLLDPPacket(NetworkInterface adapter, PacketInfo pinfo)
{
Debug.IndentLevel = 2;
PhysicalAddress MACAddress = adapter.GetPhysicalAddress();
IPInterfaceProperties ipProperties = adapter.GetIPProperties();
IPv4InterfaceProperties ipv4Properties = null; // Ipv4
IPv6InterfaceProperties ipv6Properties = null;// Ipv6
// IPv6
if (adapter.Supports(NetworkInterfaceComponent.IPv6))
{
try
{
ipv6Properties = ipProperties.GetIPv6Properties();
}
catch (NetworkInformationException e)
{
// Adapter doesn't probably have IPv6 enabled
Debug.WriteLine(e.Message, EventLogEntryType.Warning);
}
}
// IPv4
if (adapter.Supports(NetworkInterfaceComponent.IPv4))
{
try
{
ipv4Properties = ipProperties.GetIPv4Properties();
}
catch (NetworkInformationException e)
{
// Adapter doesn't probably have IPv4 enabled
Debug.WriteLine(e.Message, EventLogEntryType.Warning);
}
}
// System description
Dictionary<string, string> systemDescription = new Dictionary<string, string>();
systemDescription.Add("OS", pinfo.OperatingSystem);
//systemDescription.Add("Ver", pinfo.OperatingSystemVersion);
systemDescription.Add("Usr", pinfo.Username);
systemDescription.Add("Up", pinfo.Uptime);
// Port description
Dictionary<string, string> portDescription = new Dictionary<string, string>();
// adapter.Description is for example "Intel(R) 82579V Gigabit Network Connection"
// Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkCards\<number>\Description value
//jt
//portDescription.Add("Vendor", adapter.Description);
//portDescription.Add("Vendor", "");
/*
adapter.Id is GUID and can be found in several places:
In this example it is "{87423023-7191-4C03-A049-B8E7DBB36DA4}"
Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
- \NetworkCards\<number>\ServiceName value (in same tree as adapter.Description!)
- \NetworkList\Nla\Cache\Intranet\<adapter.Id> key
- \NetworkList\Nla\Cache\Intranet\<domain>\<adapter.Id> key
Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion
- \NetworkCards\<number>\ServiceName value
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}\0007
{4D36E972-E325-11CE-BFC1-08002BE10318} == Network and Sharing Center -> viewing adapter's "Properties" and selecting "Device class GUID" from dropdown menu
{4D36E972-E325-11CE-BFC1-08002BE10318}\0007 == Network and Sharing Center -> viewing adapter's "Properties" and selecting "Driver key" from dropdown menu
- \NetCfgInstanceId value
- \Linkage\Export value (part of)
- \Linkage\FilterList value (part of)
- \Linkage\RootDevice value
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceClasses\{ad498944-762f-11d0-8dcb-00c04fc3358c}\##?#PCI#VEN_8086&DEV_1503&SUBSYS_849C1043&REV_06#3&11583659&0&C8#{ad498944-762f-11d0-8dcb-00c04fc3358c}\#{87423023-7191-4C03-A049-B8E7DBB36DA4}\SymbolicLink value (part of)
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\{ 4D36E972 - E325 - 11CE - BFC1 - 08002BE10318}\{ 87423023 - 7191 - 4C03 - A049 - B8E7DBB36DA4}
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}\{ACB3F7A0-2E45-4435-854A-A4E120477E1D}\Connection\Name value (part of)
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\{ 87423023 - 7191 - 4C03 - A049 - B8E7DBB36DA4}
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iphlpsvc\Parameters\Isatap\{ ACB3F7A0 - 2E45 - 4435 - 854A - A4E120477E1D}\InterfaceName value (part of)
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\<various names>\Linkage
- \Bind value (part of)
- \Export value (part of)
- \Route value (part of)
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\NetBT\Parameters\Interfaces\Tcpip_{87423023-7191-4C03-A049-B8E7DBB36DA4}
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Psched\Parameters\NdisAdapters\{87423023-7191-4C03-A049-B8E7DBB36DA4}
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\RemoteAccess\Interfaces\<number>\InterfaceName value
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters\Adapters\{87423023-7191-4C03-A049-B8E7DBB36DA4}\IpConfig value (part of)
IPv4 information:
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters\Interfaces\{87423023-7191-4C03-A049-B8E7DBB36DA4}
IPv6 information:
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\TCPIP6\Parameters\Interfaces\{87423023-7191-4c03-a049-b8e7dbb36da4}
Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WfpLwf\Parameters\NdisAdapters\{87423023-7191-4C03-A049-B8E7DBB36DA4}
*/
// jt
//portDescription.Add("ID", adapter.Id);
//portDescription.Add("ID", "");
// Gateway
if (ipProperties.GatewayAddresses.Count > 0)
{
portDescription.Add("GW", String.Join(", ", ipProperties.GatewayAddresses.Select(i => i.Address.ToString()).ToArray()));
}
else
{
portDescription.Add("GW", "-");
}
// CIDR
if (ipProperties.UnicastAddresses.Count > 0)
{
int[] mask = ipProperties.UnicastAddresses
.Where(
w => w.IPv4Mask.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork
)
.Select(x => getCIDRFromIPMaskAddress(x.IPv4Mask))
.Where( m => m!= 0)
.ToArray()
;
portDescription.Add("NM", String.Join(", ", mask));
}
else
{
portDescription.Add("NM", "-");
}
/*
// DNS server(s)
if (ipProperties.DnsAddresses.Count > 0)
{
portDescription.Add("DNS", String.Join(", ", ipProperties.DnsAddresses.Select(i => i.ToString()).ToArray()));
}
else
{
portDescription.Add("DNS", "-");
}
*/
// DHCP server
if (ipProperties.DhcpServerAddresses.Count > 0)
{
portDescription.Add("DHCP", String.Join(", ", ipProperties.DhcpServerAddresses.Select(i => i.ToString()).ToArray()));
}
else
{
portDescription.Add("DHCP", "-");
}
/*
// WINS server(s)
if (ipProperties.WinsServersAddresses.Count > 0)
{
portDescription.Add("WINS", String.Join(", ", ipProperties.WinsServersAddresses.Select(i => i.ToString()).ToArray()));
}
*/
// Link speed
portDescription.Add("Spd", ReadableSize(adapter.Speed) + "ps");
// Capabilities enabled
List<CapabilityOptions> capabilitiesEnabled = new List<CapabilityOptions>();
capabilitiesEnabled.Add(CapabilityOptions.StationOnly);
if (ipv4Properties.IsForwardingEnabled)
{
capabilitiesEnabled.Add(CapabilityOptions.Router);
}
ushort expectedSystemCapabilitiesCapability = GetCapabilityOptionsBits(GetCapabilityOptions());
ushort expectedSystemCapabilitiesEnabled = GetCapabilityOptionsBits(capabilitiesEnabled);
string sysname = "";
sysname = String.Format("{0}:{1}", Environment.MachineName, GetServiceTag());
// Constuct LLDP packet
LLDPPacket lldpPacket = new LLDPPacket();
lldpPacket.TlvCollection.Add(new ChassisID(ChassisSubTypes.MACAddress, MACAddress));
lldpPacket.TlvCollection.Add(new PortID(PortSubTypes.LocallyAssigned, System.Text.Encoding.UTF8.GetBytes(adapter.Name)));
lldpPacket.TlvCollection.Add(new TimeToLive(120));
lldpPacket.TlvCollection.Add(new PortDescription(CreateTlvString(portDescription)));
lldpPacket.TlvCollection.Add(new SystemName( sysname ));
lldpPacket.TlvCollection.Add(new SystemDescription(CreateTlvString(systemDescription)));
lldpPacket.TlvCollection.Add(new SystemCapabilities(expectedSystemCapabilitiesCapability, expectedSystemCapabilitiesEnabled));
// Management
var managementAddressObjectIdentifier = "Management";
// Add management IPv4 address(es)
if (null != ipv4Properties)
{
foreach (UnicastIPAddressInformation ip in ipProperties.UnicastAddresses)
{
if (ip.Address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
lldpPacket.TlvCollection.Add(new ManagementAddress(new NetworkAddress(ip.Address), InterfaceNumbering.SystemPortNumber, Convert.ToUInt32(ipv4Properties.Index), managementAddressObjectIdentifier));
}
}
}
// Add management IPv6 address(es)
if (null != ipv6Properties)
{
foreach (UnicastIPAddressInformation ip in ipProperties.UnicastAddresses)
{
if (ip.Address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6)
{
lldpPacket.TlvCollection.Add(new ManagementAddress(new NetworkAddress(ip.Address), InterfaceNumbering.SystemPortNumber, Convert.ToUInt32(ipv6Properties.Index), managementAddressObjectIdentifier));
}
}
}
// == Organization specific TLVs
// Ethernet
lldpPacket.TlvCollection.Add(new OrganizationSpecific(new byte[] { 0x0, 0x12, 0x0f }, 5, new byte[] { 0x5 }));
var expectedOrganizationUniqueIdentifier = new byte[3] { 0, 0, 0 };
var expectedOrganizationSpecificBytes = new byte[] { 0, 0, 0, 0 };
//int orgSubType = 0;
// IPv4 Information:
//if (null != ipv4Properties)
//{
// lldpPacket.TlvCollection.Add((new StringTLV(TLVTypes.OrganizationSpecific, String.Format("IPv4 DHCP: {0}", ipv4Properties.IsDhcpEnabled.ToString()))));
//lldpPacket.TlvCollection.Add(new OrganizationSpecific(expectedOrganizationSpecificBytes, new StringTLV(), System.Text.Encoding.UTF8.GetBytes(String.Format("IPv4 DHCP: {0}", ipv4Properties.IsDhcpEnabled.ToString()))));
//}
// End of LLDP packet
lldpPacket.TlvCollection.Add(new EndOfLLDPDU());
if (0 == lldpPacket.TlvCollection.Count)
{
throw new Exception("Couldn't construct LLDP TLVs.");
}
if (lldpPacket.TlvCollection.Last().GetType() != typeof(EndOfLLDPDU))
{
throw new Exception("Last TLV must be type of 'EndOfLLDPDU'!");
}
foreach (TLV tlv in lldpPacket.TlvCollection)
{
Debug.WriteLine(tlv.ToString(), EventLogEntryType.Information);
}
// Generate packet
Packet packet = new EthernetPacket(MACAddress, destinationHW, EthernetPacketType.LLDP);
packet.PayloadData = lldpPacket.Bytes;
return packet;
}
public bool Run()
{
Debug.IndentLevel = 0;
List <NetworkInterface> adapters = new List <NetworkInterface>();
// Get list of connected adapters
Debug.WriteLine("Getting connected adapter list", EventLogEntryType.Information);
adapters = NetworkInterface.GetAllNetworkInterfaces()
.Where(
x =>
x.NetworkInterfaceType != NetworkInterfaceType.Loopback
&&
x.OperationalStatus == OperationalStatus.Up
)
.ToList();
if (0 == adapters.Count)
{
Debug.WriteLine("No adapters found.", EventLogEntryType.Information);
// No available adapters
return(true);
}
// Open network devices for sending raw packets
OpenDevices(adapters);
// Get list of users
List <UserInfo> users = OsInfo.GetUsers();
if (users.Count == 0)
{
Debug.WriteLine("No users found.", EventLogEntryType.Error);
}
users.Sort();
// Get information which doesn't change often or doesn't need to be 100% accurate in realtime when iterating through adapters
PacketInfo pinfo = new PacketInfo()
{
OperatingSystem = StaticInformation.OperatingSystemFriendlyName,
OperatingSystemVersion = StaticInformation.OperatingSystemVersion,
Tag = StaticInformation.ServiceTag,
Uptime = OsInfo.GetUptime(),
MachineName = StaticInformation.MachineName,
};
bool first = true;
string olddomain = "";
string userlist = "";
foreach (UserInfo ui in users)
{
string domain = ui.Domain;
if (domain != olddomain)
{
first = true;
}
if (first)
{
userlist += domain + ": ";
olddomain = domain;
first = false;
}
userlist += ui.Username + ", ";
}
pinfo.Username = userlist.Trim().TrimEnd(',');
foreach (NetworkInterface adapter in adapters)
{
Debug.WriteLine(String.Format("Adapter {0}:", adapter.Name), EventLogEntryType.Information);
try
{
Debug.WriteLine("Generating packet", EventLogEntryType.Information);
Packet packet = CreateLLDPPacket(adapter, pinfo);
Debug.IndentLevel = 0;
Debug.WriteLine("Sending packet", EventLogEntryType.Information);
SendRawPacket(adapter, packet);
Debug.IndentLevel = 0;
}
catch (Exception e)
{
Debug.WriteLine(String.Format("Error sending packet:{0}{1}", Environment.NewLine, e.ToString()), EventLogEntryType.Error);
}
Debug.WriteLine("", EventLogEntryType.Information);
Debug.WriteLine(new String('-', 40), EventLogEntryType.Information);
Debug.IndentLevel = 0;
}
return(true);
}
public bool Run()
{
Debug.IndentLevel = 1;
List<NetworkInterface> adapters = new List<NetworkInterface>();
// Get list of connected adapters
Debug.WriteLine("Getting connected adapter list", EventLogEntryType.Information);
adapters = NetworkInterface.GetAllNetworkInterfaces()
.Where(
x =>
x.NetworkInterfaceType != NetworkInterfaceType.Loopback
&&
x.OperationalStatus == OperationalStatus.Up
)
.ToList();
if (0 == adapters.Count)
{
Debug.WriteLine("No adapters found.", EventLogEntryType.Information);
// No available adapters
return true;
}
// Open network devices for sending raw packets
OpenDevices();
// Get list of users
List<string> users = GetUsers();
if (users.Count == 0)
{
Debug.WriteLine("No users found.", EventLogEntryType.Error);
}
// Wait to open devices
System.Threading.Thread.Sleep(Convert.ToInt32(TimeSpan.FromSeconds(1).TotalMilliseconds));
// Get information which doesn't change often or doesn't need to be 100% accurate in realtime when iterating through adapters
PacketInfo pinfo = new PacketInfo();
pinfo.OperatingSystem = FriendlyName().Trim();
pinfo.OperatingSystemVersion = Environment.OSVersion.ToString().Trim();
pinfo.Username = String.Join(", ", users).Trim().TrimEnd(',');
pinfo.Uptime = GetTickCount64().ToString();
foreach (NetworkInterface adapter in adapters)
{
Debug.WriteLine(String.Format("Adapter {0}:", adapter.Name), EventLogEntryType.Information);
try
{
Debug.WriteLine("Generating packet", EventLogEntryType.Information);
Packet packet = CreateLLDPPacket(adapter, pinfo);
Debug.IndentLevel = 1;
Debug.WriteLine("Sending packet", EventLogEntryType.Information);
sendRawPacket(adapter, packet);
Debug.IndentLevel = 1;
}
catch (Exception e)
{
Debug.WriteLine(String.Format("Error sending packet:{0}{1}", Environment.NewLine, e.ToString()), EventLogEntryType.Error);
}
Debug.WriteLine("", EventLogEntryType.Information);
Debug.WriteLine(new String('-', 40), EventLogEntryType.Information);
Debug.IndentLevel = 1;
}
return true;
}
