/** @file\r
Support for PxeBc dhcp functions.\r
\r
-Copyright (c) 2007 - 2008, Intel Corporation.<BR> \r
+Copyright (c) 2007 - 2009, Intel Corporation.<BR> \r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
ASSERT (Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_BINL);\r
\r
Offer = &Private->Dhcp4Offers[Index].Packet.Offer;\r
- if (Offer->Dhcp4.Header.ServerAddr.Addr[0] == 0) {\r
- //\r
- // next server ip address is zero, use server id option instead.\r
- //\r
+\r
+ //\r
+ // use option 54, if zero, use siaddr in header\r
+ //\r
+ ZeroMem (&ServerIp, sizeof(EFI_IP_ADDRESS));\r
+ if (Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_SERVER_ID] != NULL) {\r
CopyMem (\r
&ServerIp.Addr[0],\r
Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_SERVER_ID]->Data,\r
sizeof (EFI_IPv4_ADDRESS)\r
);\r
} else {\r
- //\r
- // use next server ip address.\r
- //\r
- CopyMem (&ServerIp.Addr[0], &Offer->Dhcp4.Header.ServerAddr, sizeof (EFI_IPv4_ADDRESS));\r
+ CopyMem (\r
+ &ServerIp.Addr[0], \r
+ &Offer->Dhcp4.Header.ServerAddr, \r
+ sizeof (EFI_IPv4_ADDRESS)\r
+ );\r
+ }\r
+ if (ServerIp.Addr[0] == 0) {\r
+ return FALSE;\r
}\r
\r
CachedPacket = &Private->ProxyOffer;\r
\r
**/\r
EFI_STATUS\r
+EFIAPI\r
PxeBcDhcpCallBack (\r
IN EFI_DHCP4_PROTOCOL * This,\r
IN VOID *Context,\r
OptList[Index]->OpCode = PXEBC_PXE_DHCP4_TAG_UNDI;\r
OptList[Index]->Length = sizeof (PXEBC_DHCP4_OPTION_UNDI);\r
OptEnt.Undi = (PXEBC_DHCP4_OPTION_UNDI *) OptList[Index]->Data;\r
- OptEnt.Undi->Type = Private->Nii->Type;\r
- OptEnt.Undi->MajorVer = Private->Nii->MajorVer;\r
- OptEnt.Undi->MinorVer = Private->Nii->MinorVer;\r
+ if (Private->Nii != NULL) {\r
+ OptEnt.Undi->Type = Private->Nii->Type;\r
+ OptEnt.Undi->MajorVer = Private->Nii->MajorVer;\r
+ OptEnt.Undi->MinorVer = Private->Nii->MinorVer;\r
+ } else {\r
+ OptEnt.Undi->Type = DEFAULT_UNDI_TYPE;\r
+ OptEnt.Undi->MajorVer = DEFAULT_UNDI_MAJOR;\r
+ OptEnt.Undi->MinorVer = DEFAULT_UNDI_MINOR;\r
+ }\r
\r
Index++;\r
OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
OptEnt.Clid = (PXEBC_DHCP4_OPTION_CLID *) OptList[Index]->Data;\r
CopyMem (OptEnt.Clid, DEFAULT_CLASS_ID_DATA, sizeof (PXEBC_DHCP4_OPTION_CLID));\r
CvtNum (SYS_ARCH, OptEnt.Clid->ArchitectureType, sizeof (OptEnt.Clid->ArchitectureType));\r
- CopyMem (OptEnt.Clid->InterfaceName, Private->Nii->StringId, sizeof (OptEnt.Clid->InterfaceName));\r
- CvtNum (Private->Nii->MajorVer, OptEnt.Clid->UndiMajor, sizeof (OptEnt.Clid->UndiMajor));\r
- CvtNum (Private->Nii->MinorVer, OptEnt.Clid->UndiMinor, sizeof (OptEnt.Clid->UndiMinor));\r
+\r
+ if (Private->Nii != NULL) {\r
+ // \r
+ // If NII protocol exists, update DHCP option data\r
+ //\r
+ CopyMem (OptEnt.Clid->InterfaceName, Private->Nii->StringId, sizeof (OptEnt.Clid->InterfaceName));\r
+ CvtNum (Private->Nii->MajorVer, OptEnt.Clid->UndiMajor, sizeof (OptEnt.Clid->UndiMajor));\r
+ CvtNum (Private->Nii->MinorVer, OptEnt.Clid->UndiMinor, sizeof (OptEnt.Clid->UndiMinor));\r
+ }\r
+\r
Index++;\r
\r
return Index;\r