private DhcpServerScopeReservation(DhcpServerScope scope, DhcpServerIpAddress address, DhcpServerHardwareAddress hardwareAddress, DhcpServerClientTypes allowedClientTypes)
{
Scope = scope;
Address = address;
HardwareAddress = hardwareAddress;
AllowedClientTypes = allowedClientTypes;
Options = new DhcpServerScopeReservationOptionValueCollection(this);
}
private static void GetVersion(DhcpServerIpAddress address, out int versionMajor, out int versionMinor)
{
var result = Api.DhcpGetVersion(ServerIpAddress: address,
MajorVersion: out versionMajor,
MinorVersion: out versionMinor);
if (result != DhcpErrors.SUCCESS)
{
throw new DhcpServerException(nameof(Api.DhcpGetVersion), result);
}
}
private DhcpServerBindingElement(DhcpServer server, bool cantModify, bool isBound, DhcpServerIpAddress adapterPrimaryIpAddress, DhcpServerIpMask adapterSubnetAddress, string interfaceDescription, Guid interfaceGuidId, byte[] interfaceId)
{
Server = server;
CantModify = cantModify;
IsBound = isBound;
AdapterPrimaryIpAddress = adapterPrimaryIpAddress;
AdapterSubnetAddress = adapterSubnetAddress;
InterfaceDescription = interfaceDescription;
this.interfaceId = interfaceId;
InterfaceGuidId = interfaceGuidId;
}
private DhcpServerIpRange(DhcpServerIpAddress startAddress, DhcpServerIpAddress endAddress, DhcpServerIpRangeType type, int bootpClientsAllocated, int maxBootpAllowed)
{
if (startAddress > endAddress)
{
throw new ArgumentOutOfRangeException(nameof(endAddress), "The ip range start address cannot be greater than the end address");
}
this.startAddress = startAddress;
this.endAddress = endAddress;
this.type = type;
this.bootpClientsAllocated = bootpClientsAllocated;
this.maxBootpAllowed = maxBootpAllowed;
}
private DhcpServer(DhcpServerIpAddress address, string name)
{
Address = address;
Name = name;
Classes = new DhcpServerClassCollection(this);
Options = new DhcpServerOptionCollection(this);
Scopes = new DhcpServerScopeCollection(this);
Clients = new DhcpServerClientCollection(this);
BindingElements = new DhcpServerBindingElementCollection(this);
FailoverRelationships = new DhcpServerFailoverRelationshipCollection(this);
GetVersion(address, out var versionMajor, out var versionMinor);
VersionMajor = versionMajor;
VersionMinor = versionMinor;
}
private DhcpServerFailoverRelationship(
DhcpServer server,
string name,
DhcpServerFailoverMode mode,
byte modePercentage,
DhcpServerFailoverState state,
DhcpServerFailoverState previousState,
DhcpServerIpAddress primaryServerAddress,
string primaryServerName,
DhcpServerIpAddress secondaryServerAddress,
string secondaryServerName,
DhcpServerFailoverServerType serverType,
string sharedSecret,
TimeSpan maximumClientLeadTime,
TimeSpan?stateSwitchInterval,
List <DhcpServerIpAddress> scopeAddresses
)
{
Server = server;
Name = name;
Mode = mode;
State = state;
PreviousState = previousState;
PrimaryServerAddress = primaryServerAddress;
PrimaryServerName = primaryServerName;
SecondaryServerAddress = secondaryServerAddress;
SecondaryServerName = secondaryServerName;
ServerType = serverType;
SharedSecret = sharedSecret;
MaximumClientLeadTime = maximumClientLeadTime;
StateSwitchoverInterval = stateSwitchInterval;
this.scopeAddresses = scopeAddresses;
switch (mode)
{
case DhcpServerFailoverMode.LoadBalance:
LoadBalancePercentage = modePercentage;
break;
case DhcpServerFailoverMode.HotStandby:
HotStandbyAddressesReservedPercentage = modePercentage;
break;
}
}
private static DhcpServerIpRange FromCidr(string cidrSubnet, DhcpServerIpRangeType type, int bootpClientsAllocated, int maxBootpAllowed)
{
if (string.IsNullOrEmpty(cidrSubnet))
{
throw new ArgumentNullException(nameof(cidrSubnet));
}
var slashIndex = cidrSubnet.IndexOf('/');
if (slashIndex < 7 || !BitHelper.TryParseByteFromSubstring(cidrSubnet, ++slashIndex, cidrSubnet.Length - slashIndex, out var significantBits))
{
throw new ArgumentException("Invalid CIDR subnet notation format");
}
var address = DhcpServerIpAddress.FromNative(BitHelper.StringToIpAddress(cidrSubnet, 0, --slashIndex));
var mask = DhcpServerIpMask.FromSignificantBits(significantBits);
return(FromMask(address, mask, type, bootpClientsAllocated, maxBootpAllowed));
}
internal static DhcpServerDnsSettings GetScopeDnsSettings(DhcpServer server, DhcpServerIpAddress address)
{
// Flag is Option 81
try
{
var option = DhcpServerOptionValue.GetScopeDefaultOptionValue(server, address, 81);
if (option.Values.FirstOrDefault() is DhcpServerOptionElementDWord value)
{
return(new DhcpServerDnsSettings((uint)value.RawValue));
}
else
{
return(GetGlobalDnsSettings(server));
}
}
catch (DhcpServerException e) when(e.ApiErrorId == (uint)DhcpErrors.ERROR_FILE_NOT_FOUND)
{
return(GetGlobalDnsSettings(server));
}
}
private static DhcpServerIpRange FromMask(DhcpServerIpAddress address, DhcpServerIpMask mask, DhcpServerIpRangeType type, int bootpClientsAllocated, int maxBootpAllowed)
{
var startAddressNative = address.Native & mask.Native;
var endAddressNative = (address.Native & mask.Native) | ~mask.Native;
if (type == DhcpServerIpRangeType.ScopeDhcpOnly ||
type == DhcpServerIpRangeType.ScopeDhcpAndBootp ||
type == DhcpServerIpRangeType.ScopeBootpOnly)
{
// remove subnet id and broadcast address from range
startAddressNative++;
endAddressNative--;
}
return(new DhcpServerIpRange(startAddress: DhcpServerIpAddress.FromNative(startAddressNative),
endAddress: DhcpServerIpAddress.FromNative(endAddressNative),
type: type,
bootpClientsAllocated: bootpClientsAllocated,
maxBootpAllowed: maxBootpAllowed));
}
/// <summary> /// Gets the DHCP scope with the associated scope address /// </summary> /// <param name="scopeAddress"></param> /// <returns></returns> public IDhcpServerScope GetScope(DhcpServerIpAddress scopeAddress) => DhcpServerScope.GetScope(Server, scopeAddress);
public IDhcpServerClient AddClient(DhcpServerIpAddress address, DhcpServerHardwareAddress hardwareAddress, string name, string comment, DateTime leaseExpires, IDhcpServerHost ownerHost, DhcpServerClientTypes clientType, DhcpServerClientAddressStates addressState, DhcpServerClientQuarantineStatuses quarantineStatus, DateTime probationEnds, bool quarantineCapable) => DhcpServerClient.CreateClient(Scope, address, hardwareAddress, name, comment, leaseExpires, (DhcpServerHost)ownerHost, clientType, addressState, quarantineStatus, probationEnds, quarantineCapable);
public IDhcpServerClient AddClient(DhcpServerIpAddress address, DhcpServerHardwareAddress hardwareAddress, string name, string comment, DateTime leaseExpires, IDhcpServerHost ownerHost) => DhcpServerClient.CreateClient(Scope, address, hardwareAddress, name, comment, leaseExpires, (DhcpServerHost)ownerHost);
private DhcpServerHost(DhcpServerIpAddress address, string netBiosName, string serverName)
{
Address = address;
NetBiosName = netBiosName;
ServerName = serverName;
}
public IDhcpServerOptionValue CreateOptionIpAddressValue(DhcpServerIpAddress value)
{
ValidateCreateOptionArguments(DhcpServerOptionElementType.IpAddress);
return(CreateOptionValue(DhcpServerOptionElement.CreateElement(value)));
}
internal DhcpServerOptionElementIpAddress(DhcpServerIpAddress value)
{
address = value;
}
internal static DhcpServerFailoverRelationship GetFailoverRelationship(DhcpServer server, DhcpServerIpAddress subnetAddress)
{
var result = Api.DhcpV4FailoverGetScopeRelationship(ServerIpAddress: server.Address,
ScopeId: subnetAddress.ToNativeAsNetwork(),
Relationship: out var relationshipPtr);
if (result == DhcpErrors.FO_SCOPE_NOT_IN_RELATIONSHIP)
{
return(null);
}
if (result != DhcpErrors.SUCCESS)
{
throw new DhcpServerException(nameof(Api.DhcpV4FailoverGetScopeRelationship), result);
}
try
{
using (var relationship = relationshipPtr.MarshalToStructure <DHCP_FAILOVER_RELATIONSHIP>())
{
return(FromNative(server, in relationship));
}
}
finally
{
Api.FreePointer(relationshipPtr);
}
}
internal static DhcpServerScopeReservation CreateReservation(DhcpServerScope scope, DhcpServerIpAddress address, DhcpServerHardwareAddress hardwareAddress, DhcpServerClientTypes allowedClientTypes)
{
if (!scope.IpRange.Contains(address))
{
throw new ArgumentOutOfRangeException(nameof(address), "The DHCP scope does not include the provided address");
}
DhcpServerScope.AddSubnetReservationElement(scope.Server, scope.Address, address, hardwareAddress, allowedClientTypes);
return(new DhcpServerScopeReservation(scope, address, hardwareAddress, allowedClientTypes));
}
internal static DhcpServerScopeReservation CreateReservation(DhcpServerScope scope, DhcpServerIpAddress address, DhcpServerHardwareAddress hardwareAddress) => CreateReservation(scope, address, hardwareAddress, DhcpServerClientTypes.DhcpAndBootp);
internal static DhcpServerIpRange FromMask(DhcpServerIpAddress address, DhcpServerIpMask mask, DhcpServerIpRangeType type) => FromMask(address, mask, type, DefaultBootpClientsAllocated, DefaultMaxBootpAllowed);
public DhcpServerIpAddress DataAsIpAddress() => DhcpServerIpAddress.FromNative(DataAsInt32());
public DhcpServerIpAddress DataAsIpAddress(int index) => DhcpServerIpAddress.FromNative(DataAsInt32(index));
public static DhcpServerIpRange AsExcluded(DhcpServerIpAddress startAddress, DhcpServerIpAddress endAddress) => new DhcpServerIpRange(startAddress, endAddress, DhcpServerIpRangeType.Excluded);
public static DhcpServerIpRange AsDhcpScope(DhcpServerIpAddress address, DhcpServerIpMask mask) => FromMask(address, mask, DhcpServerIpRangeType.ScopeDhcpOnly);
public static DhcpServerIpRange AsExcluded(DhcpServerIpAddress address, DhcpServerIpMask mask) => FromMask(address, mask, DhcpServerIpRangeType.Excluded);
public static DhcpServerIpRange AsDhcpScope(DhcpServerIpAddress startAddress, DhcpServerIpAddress endAddress) => new DhcpServerIpRange(startAddress, endAddress, DhcpServerIpRangeType.ScopeDhcpOnly);
/// <summary> /// Creates a DHCP scope reservation /// </summary> /// <param name="address">IP Address to reserve</param> /// <param name="hardwareAddress">Hardware address (MAC address) of client associated with this reservation</param> /// <param name="allowedClientTypes">Protocols this reservation supports</param> /// <returns>The scope reservation</returns> public IDhcpServerScopeReservation AddReservation(DhcpServerIpAddress address, DhcpServerHardwareAddress hardwareAddress, DhcpServerClientTypes allowedClientTypes) => DhcpServerScopeReservation.CreateReservation(Scope, address, hardwareAddress, allowedClientTypes);
internal static List <DhcpServerOptionElement> CreateElement(DhcpServerIpAddress value)
=> new List <DhcpServerOptionElement>(1)
{
new DhcpServerOptionElementIpAddress(value)
};
public IDhcpServerClient AddClient(DhcpServerIpAddress address, DhcpServerHardwareAddress hardwareAddress) => DhcpServerClient.CreateClient(Scope, address, hardwareAddress);
/// <summary> /// Creates a DHCP scope reservation /// </summary> /// <param name="address">IP Address to reserve</param> /// <param name="hardwareAddress">Hardware address (MAC address) of client associated with this reservation</param> /// <returns>The scope reservation</returns> public IDhcpServerScopeReservation AddReservation(DhcpServerIpAddress address, DhcpServerHardwareAddress hardwareAddress) => DhcpServerScopeReservation.CreateReservation(Scope, address, hardwareAddress);
public IDhcpServerClient AddClient(DhcpServerIpAddress address, DhcpServerHardwareAddress hardwareAddress, string name, string comment) => DhcpServerClient.CreateClient(Scope, address, hardwareAddress, name, comment);
