static void SendSelectedNetBoot(DHCPRequest dhcpRequest)
{
//This Reply is the client selecting which image they want to boot from
Trace.WriteLine("Request Is An Apple NetBoot Selection");
var vendorSpecificInformation = dhcpRequest.GetVendorSpecificInformation();
var strVendorSpecificInformation = Utility.ByteArrayToString(vendorSpecificInformation, true);
var imageIdHex = strVendorSpecificInformation.Substring(strVendorSpecificInformation.Length - 4);
var targetNbi = Settings.RootPath.Replace("[nbi_id]", imageIdHex);
var targetAppleBootFile = Settings.AppleBootFile.Replace("[nbi_id]", imageIdHex);
var clientHardwareAddress = new PhysicalAddress(dhcpRequest.GetChaddr());
var replyOptions = new DHCPReplyOptions();
replyOptions.NextServer = IPAddress.Parse(Settings.NextServer);
replyOptions.OtherOptions.Add(DHCPOption.Vendorclassidentifier, Settings.AAPLBSDPC);
replyOptions.OtherOptions.Add(DHCPOption.VendorSpecificInformation, Utility.StringToByteArray(Settings.VendorInfo));
replyOptions.OtherOptions.Add(DHCPOption.RootPath, Encoding.UTF8.GetBytes(targetNbi));
//Modification to allow both a clonedeploy linux and osx imaging environment to work simultaneously without two proxy dhcp servers running
if (imageIdHex == "0F49" || imageIdHex == "98DB") //image ids of 3913 or 39131
{
replyOptions.BootFileName = Settings.AppleEFIBootFile;
}
else
{
replyOptions.BootFileName = targetAppleBootFile;
}
if (DHCPServer.Reservations.ContainsKey(clientHardwareAddress))
{
replyOptions.NextServer =
IPAddress.Parse(DHCPServer.Reservations[clientHardwareAddress].ReserveNextServer);
replyOptions.BootFileName = DHCPServer.Reservations[clientHardwareAddress].ReserveBootFile;
}
var reply = new DHCPReply(dhcpRequest);
reply.Send(DHCPMsgType.DHCPACK, replyOptions, 68);
}
public void Process(DHCPRequest dhcpRequest)
{
var requestType = dhcpRequest.GetMsgType();
if (requestType != DHCPMsgType.DHCPDISCOVER && requestType != DHCPMsgType.DHCPINFORM)
{
return;
}
var clientHardwareAddress = new PhysicalAddress(dhcpRequest.GetChaddr());
if (DHCPServer.AclList.ContainsKey(clientHardwareAddress) && !DHCPServer.AclList[clientHardwareAddress] ||
!DHCPServer.AclList.ContainsKey(clientHardwareAddress) && !Settings.AllowAll)
{
Trace.WriteLine("Request Denied By ACL - Ignoring");
return;
}
var vendorId = dhcpRequest.GetVendorOptionData();
if (vendorId != null)
{
Trace.WriteLine(requestType + " Request From " +
Utility.ByteArrayToString(dhcpRequest.GetChaddr(), true));
var strVendorId = Utility.ByteArrayToString(vendorId, true);
//Expected Format: 505845436C69656E743A417263683A30303030303A554E44493A303032303031 (PXEClient:Arch:00000:UNDI:002001)
if (strVendorId.StartsWith("505845436C69656E74"))
{
ProcessPXERequest(dhcpRequest);
}
if (!Settings.ListenBSDP)
{
return;
}
Trace.WriteLine("Vendor Class Id " + strVendorId);
//Expected Format: 4141504C42534450432F693338362F694D616331342C33 (AAPLBSDPC/i386/iMac14,3)
if (strVendorId.StartsWith("4141504C4253445043"))
{
var vendorSpecificInformation = dhcpRequest.GetVendorSpecificInformation();
if (vendorSpecificInformation != null)
{
var strVendorInformation = Utility.ByteArrayToString(vendorSpecificInformation, true);
if (strVendorInformation.Length >= 6)
{
switch (strVendorInformation.Substring(0, 6))
{
case "010101":
SendAppleBootList(dhcpRequest);
break;
case "010102":
var interfaceHex =
Utility.ByteArrayToString(
string.IsNullOrEmpty(Settings.ServerIdentifierOverride)
? IPAddress.Parse(Settings.Nic).GetAddressBytes()
: IPAddress.Parse(Settings.ServerIdentifierOverride)
.GetAddressBytes(),
true);
if (strVendorInformation.Contains(interfaceHex))
{
SendSelectedNetBoot(dhcpRequest);
}
else
{
Trace.WriteLine("Different BSDP Server Targeted - Ignoring");
}
break;
default:
Trace.WriteLine(
"Not An Apple BSDP Request, Vendor Specific Information Mismatch - Ignoring");
break;
}
}
}
}
}
Trace.WriteLine("");
}