/** @file\r
Functions implementation related with DHCPv4 for UefiPxeBc Driver.\r
\r
- Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r
\r
- 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
- http://opensource.org/licenses/bsd-license.php.\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
//\r
// This is a map from the interested DHCP4 option tags' index to the tag value.\r
//\r
-UINT8 mInterestedDhcp4Tags[PXEBC_DHCP4_TAG_INDEX_MAX] = {\r
- PXEBC_DHCP4_TAG_BOOTFILE_LEN,\r
- PXEBC_DHCP4_TAG_VENDOR,\r
- PXEBC_DHCP4_TAG_OVERLOAD,\r
- PXEBC_DHCP4_TAG_MSG_TYPE,\r
- PXEBC_DHCP4_TAG_SERVER_ID,\r
- PXEBC_DHCP4_TAG_CLASS_ID,\r
- PXEBC_DHCP4_TAG_BOOTFILE\r
+UINT8 mInterestedDhcp4Tags[PXEBC_DHCP4_TAG_INDEX_MAX] = {\r
+ DHCP4_TAG_BOOTFILE_LEN,\r
+ DHCP4_TAG_VENDOR,\r
+ DHCP4_TAG_OVERLOAD,\r
+ DHCP4_TAG_MSG_TYPE,\r
+ DHCP4_TAG_SERVER_ID,\r
+ DHCP4_TAG_VENDOR_CLASS_ID,\r
+ DHCP4_TAG_BOOTFILE\r
};\r
\r
//\r
// There are 4 times retries with the value of 4, 8, 16 and 32, refers to PXE2.1 spec.\r
//\r
-UINT32 mPxeDhcpTimeout[4] = {4, 8, 16, 32};\r
-\r
+UINT32 mPxeDhcpTimeout[4] = { 4, 8, 16, 32 };\r
\r
/**\r
Parse a certain dhcp4 option by OptTag in Buffer, and return with start pointer.\r
**/\r
EFI_DHCP4_PACKET_OPTION *\r
PxeBcParseDhcp4Options (\r
- IN UINT8 *Buffer,\r
- IN UINT32 Length,\r
- IN UINT8 OptTag\r
+ IN UINT8 *Buffer,\r
+ IN UINT32 Length,\r
+ IN UINT8 OptTag\r
)\r
{\r
- EFI_DHCP4_PACKET_OPTION *Option;\r
- UINT32 Offset;\r
+ EFI_DHCP4_PACKET_OPTION *Option;\r
+ UINT32 Offset;\r
\r
- Option = (EFI_DHCP4_PACKET_OPTION *) Buffer;\r
- Offset = 0;\r
-\r
- while (Offset < Length && Option->OpCode != PXEBC_DHCP4_TAG_EOP) {\r
+ Option = (EFI_DHCP4_PACKET_OPTION *)Buffer;\r
+ Offset = 0;\r
\r
+ while (Offset < Length && Option->OpCode != DHCP4_TAG_EOP) {\r
if (Option->OpCode == OptTag) {\r
//\r
// Found the required option.\r
//\r
// Skip the current option to the next.\r
//\r
- if (Option->OpCode == PXEBC_DHCP4_TAG_PAD) {\r
+ if (Option->OpCode == DHCP4_TAG_PAD) {\r
Offset++;\r
} else {\r
Offset += Option->Length + 2;\r
}\r
\r
- Option = (EFI_DHCP4_PACKET_OPTION *) (Buffer + Offset);\r
+ Option = (EFI_DHCP4_PACKET_OPTION *)(Buffer + Offset);\r
}\r
\r
return NULL;\r
}\r
\r
-\r
/**\r
- Parse the PXE vender options and extract the information from them.\r
+ Parse the PXE vendor options and extract the information from them.\r
\r
@param[in] Dhcp4Option Pointer to vendor options in buffer.\r
@param[in] VendorOption Pointer to structure to store information in vendor options.\r
**/\r
VOID\r
PxeBcParseVendorOptions (\r
- IN EFI_DHCP4_PACKET_OPTION *Dhcp4Option,\r
- IN PXEBC_VENDOR_OPTION *VendorOption\r
+ IN EFI_DHCP4_PACKET_OPTION *Dhcp4Option,\r
+ IN PXEBC_VENDOR_OPTION *VendorOption\r
)\r
{\r
- UINT32 *BitMap;\r
- UINT8 VendorOptionLen;\r
- EFI_DHCP4_PACKET_OPTION *PxeOption;\r
- UINT8 Offset;\r
+ UINT32 *BitMap;\r
+ UINT8 VendorOptionLen;\r
+ EFI_DHCP4_PACKET_OPTION *PxeOption;\r
+ UINT8 Offset;\r
\r
BitMap = VendorOption->BitMap;\r
VendorOptionLen = Dhcp4Option->Length;\r
- PxeOption = (EFI_DHCP4_PACKET_OPTION *) &Dhcp4Option->Data[0];\r
+ PxeOption = (EFI_DHCP4_PACKET_OPTION *)&Dhcp4Option->Data[0];\r
Offset = 0;\r
\r
ASSERT (PxeOption != NULL);\r
\r
- while ((Offset < VendorOptionLen) && (PxeOption->OpCode != PXEBC_DHCP4_TAG_EOP)) {\r
+ while ((Offset < VendorOptionLen) && (PxeOption->OpCode != DHCP4_TAG_EOP)) {\r
//\r
// Parse all the interesting PXE vendor options one by one.\r
//\r
switch (PxeOption->OpCode) {\r
+ case PXEBC_VENDOR_TAG_MTFTP_IP:\r
\r
- case PXEBC_VENDOR_TAG_MTFTP_IP:\r
-\r
- CopyMem (&VendorOption->MtftpIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r
- break;\r
+ CopyMem (&VendorOption->MtftpIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_MTFTP_CPORT:\r
+ case PXEBC_VENDOR_TAG_MTFTP_CPORT:\r
\r
- CopyMem (&VendorOption->MtftpCPort, PxeOption->Data, sizeof (VendorOption->MtftpCPort));\r
- break;\r
+ CopyMem (&VendorOption->MtftpCPort, PxeOption->Data, sizeof (VendorOption->MtftpCPort));\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_MTFTP_SPORT:\r
+ case PXEBC_VENDOR_TAG_MTFTP_SPORT:\r
\r
- CopyMem (&VendorOption->MtftpSPort, PxeOption->Data, sizeof (VendorOption->MtftpSPort));\r
- break;\r
+ CopyMem (&VendorOption->MtftpSPort, PxeOption->Data, sizeof (VendorOption->MtftpSPort));\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_MTFTP_TIMEOUT:\r
+ case PXEBC_VENDOR_TAG_MTFTP_TIMEOUT:\r
\r
- VendorOption->MtftpTimeout = *PxeOption->Data;\r
- break;\r
+ VendorOption->MtftpTimeout = *PxeOption->Data;\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_MTFTP_DELAY:\r
+ case PXEBC_VENDOR_TAG_MTFTP_DELAY:\r
\r
- VendorOption->MtftpDelay = *PxeOption->Data;\r
- break;\r
+ VendorOption->MtftpDelay = *PxeOption->Data;\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_DISCOVER_CTRL:\r
+ case PXEBC_VENDOR_TAG_DISCOVER_CTRL:\r
\r
- VendorOption->DiscoverCtrl = *PxeOption->Data;\r
- break;\r
+ VendorOption->DiscoverCtrl = *PxeOption->Data;\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_DISCOVER_MCAST:\r
+ case PXEBC_VENDOR_TAG_DISCOVER_MCAST:\r
\r
- CopyMem (&VendorOption->DiscoverMcastIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r
- break;\r
+ CopyMem (&VendorOption->DiscoverMcastIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_BOOT_SERVERS:\r
+ case PXEBC_VENDOR_TAG_BOOT_SERVERS:\r
\r
- VendorOption->BootSvrLen = PxeOption->Length;\r
- VendorOption->BootSvr = (PXEBC_BOOT_SVR_ENTRY *) PxeOption->Data;\r
- break;\r
+ VendorOption->BootSvrLen = PxeOption->Length;\r
+ VendorOption->BootSvr = (PXEBC_BOOT_SVR_ENTRY *)PxeOption->Data;\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_BOOT_MENU:\r
+ case PXEBC_VENDOR_TAG_BOOT_MENU:\r
\r
- VendorOption->BootMenuLen = PxeOption->Length;\r
- VendorOption->BootMenu = (PXEBC_BOOT_MENU_ENTRY *) PxeOption->Data;\r
- break;\r
+ VendorOption->BootMenuLen = PxeOption->Length;\r
+ VendorOption->BootMenu = (PXEBC_BOOT_MENU_ENTRY *)PxeOption->Data;\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_MENU_PROMPT:\r
+ case PXEBC_VENDOR_TAG_MENU_PROMPT:\r
\r
- VendorOption->MenuPromptLen = PxeOption->Length;\r
- VendorOption->MenuPrompt = (PXEBC_MENU_PROMPT *) PxeOption->Data;\r
- break;\r
+ VendorOption->MenuPromptLen = PxeOption->Length;\r
+ VendorOption->MenuPrompt = (PXEBC_MENU_PROMPT *)PxeOption->Data;\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_MCAST_ALLOC:\r
+ case PXEBC_VENDOR_TAG_MCAST_ALLOC:\r
\r
- CopyMem (&VendorOption->McastIpBase, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r
- CopyMem (&VendorOption->McastIpBlock, PxeOption->Data + 4, sizeof (VendorOption->McastIpBlock));\r
- CopyMem (&VendorOption->McastIpRange, PxeOption->Data + 6, sizeof (VendorOption->McastIpRange));\r
- break;\r
+ CopyMem (&VendorOption->McastIpBase, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));\r
+ CopyMem (&VendorOption->McastIpBlock, PxeOption->Data + 4, sizeof (VendorOption->McastIpBlock));\r
+ CopyMem (&VendorOption->McastIpRange, PxeOption->Data + 6, sizeof (VendorOption->McastIpRange));\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_CREDENTIAL_TYPES:\r
+ case PXEBC_VENDOR_TAG_CREDENTIAL_TYPES:\r
\r
- VendorOption->CredTypeLen = PxeOption->Length;\r
- VendorOption->CredType = (UINT32 *) PxeOption->Data;\r
- break;\r
+ VendorOption->CredTypeLen = PxeOption->Length;\r
+ VendorOption->CredType = (UINT32 *)PxeOption->Data;\r
+ break;\r
\r
- case PXEBC_VENDOR_TAG_BOOT_ITEM:\r
+ case PXEBC_VENDOR_TAG_BOOT_ITEM:\r
\r
- CopyMem (&VendorOption->BootSrvType, PxeOption->Data, sizeof (VendorOption->BootSrvType));\r
- CopyMem (&VendorOption->BootSrvLayer, PxeOption->Data + 2, sizeof (VendorOption->BootSrvLayer));\r
- break;\r
+ CopyMem (&VendorOption->BootSrvType, PxeOption->Data, sizeof (VendorOption->BootSrvType));\r
+ CopyMem (&VendorOption->BootSrvLayer, PxeOption->Data + 2, sizeof (VendorOption->BootSrvLayer));\r
+ break;\r
\r
- default:\r
- //\r
- // Not interesting PXE vendor options.\r
- //\r
- break;\r
+ default:\r
+ //\r
+ // Not interesting PXE vendor options.\r
+ //\r
+ break;\r
}\r
\r
//\r
//\r
// Continue to the next option.\r
//\r
- if (PxeOption->OpCode == PXEBC_DHCP4_TAG_PAD) {\r
+ if (PxeOption->OpCode == DHCP4_TAG_PAD) {\r
Offset++;\r
} else {\r
- Offset = (UINT8) (Offset + PxeOption->Length + 2);\r
+ Offset = (UINT8)(Offset + PxeOption->Length + 2);\r
}\r
\r
- PxeOption = (EFI_DHCP4_PACKET_OPTION *) (Dhcp4Option->Data + Offset);\r
+ PxeOption = (EFI_DHCP4_PACKET_OPTION *)(Dhcp4Option->Data + Offset);\r
}\r
}\r
\r
-\r
/**\r
Build the options buffer for the DHCPv4 request packet.\r
\r
IN BOOLEAN NeedMsgType\r
)\r
{\r
- UINT32 Index;\r
- PXEBC_DHCP4_OPTION_ENTRY OptEnt;\r
- UINT16 Value;\r
+ UINT32 Index;\r
+ PXEBC_DHCP4_OPTION_ENTRY OptEnt;\r
+ UINT16 Value;\r
\r
Index = 0;\r
- OptList[0] = (EFI_DHCP4_PACKET_OPTION *) Buffer;\r
+ OptList[0] = (EFI_DHCP4_PACKET_OPTION *)Buffer;\r
\r
if (NeedMsgType) {\r
//\r
// Append message type.\r
//\r
- OptList[Index]->OpCode = PXEBC_DHCP4_TAG_MSG_TYPE;\r
- OptList[Index]->Length = 1;\r
- OptEnt.Mesg = (PXEBC_DHCP4_OPTION_MESG *) OptList[Index]->Data;\r
- OptEnt.Mesg->Type = PXEBC_DHCP4_MSG_TYPE_REQUEST;\r
+ OptList[Index]->OpCode = DHCP4_TAG_MSG_TYPE;\r
+ OptList[Index]->Length = 1;\r
+ OptEnt.Mesg = (PXEBC_DHCP4_OPTION_MESG *)OptList[Index]->Data;\r
+ OptEnt.Mesg->Type = PXEBC_DHCP4_MSG_TYPE_REQUEST;\r
Index++;\r
- OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
+ OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
\r
//\r
// Append max message size.\r
//\r
- OptList[Index]->OpCode = PXEBC_DHCP4_TAG_MAXMSG;\r
- OptList[Index]->Length = (UINT8) sizeof (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE);\r
- OptEnt.MaxMesgSize = (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE *) OptList[Index]->Data;\r
- Value = NTOHS (PXEBC_DHCP4_PACKET_MAX_SIZE - 8);\r
+ OptList[Index]->OpCode = DHCP4_TAG_MAXMSG;\r
+ OptList[Index]->Length = (UINT8)sizeof (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE);\r
+ OptEnt.MaxMesgSize = (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE *)OptList[Index]->Data;\r
+ Value = NTOHS (PXEBC_DHCP4_PACKET_MAX_SIZE);\r
CopyMem (&OptEnt.MaxMesgSize->Size, &Value, sizeof (UINT16));\r
Index++;\r
- OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
+ OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
}\r
\r
//\r
// Append parameter request list option.\r
//\r
- OptList[Index]->OpCode = PXEBC_DHCP4_TAG_PARA_LIST;\r
+ OptList[Index]->OpCode = DHCP4_TAG_PARA_LIST;\r
OptList[Index]->Length = 35;\r
- OptEnt.Para = (PXEBC_DHCP4_OPTION_PARA *) OptList[Index]->Data;\r
- OptEnt.Para->ParaList[0] = PXEBC_DHCP4_TAG_NETMASK;\r
- OptEnt.Para->ParaList[1] = PXEBC_DHCP4_TAG_TIME_OFFSET;\r
- OptEnt.Para->ParaList[2] = PXEBC_DHCP4_TAG_ROUTER;\r
- OptEnt.Para->ParaList[3] = PXEBC_DHCP4_TAG_TIME_SERVER;\r
- OptEnt.Para->ParaList[4] = PXEBC_DHCP4_TAG_NAME_SERVER;\r
- OptEnt.Para->ParaList[5] = PXEBC_DHCP4_TAG_DNS_SERVER;\r
- OptEnt.Para->ParaList[6] = PXEBC_DHCP4_TAG_HOSTNAME;\r
- OptEnt.Para->ParaList[7] = PXEBC_DHCP4_TAG_BOOTFILE_LEN;\r
- OptEnt.Para->ParaList[8] = PXEBC_DHCP4_TAG_DOMAINNAME;\r
- OptEnt.Para->ParaList[9] = PXEBC_DHCP4_TAG_ROOTPATH;\r
- OptEnt.Para->ParaList[10] = PXEBC_DHCP4_TAG_EXTEND_PATH;\r
- OptEnt.Para->ParaList[11] = PXEBC_DHCP4_TAG_EMTU;\r
- OptEnt.Para->ParaList[12] = PXEBC_DHCP4_TAG_TTL;\r
- OptEnt.Para->ParaList[13] = PXEBC_DHCP4_TAG_BROADCAST;\r
- OptEnt.Para->ParaList[14] = PXEBC_DHCP4_TAG_NIS_DOMAIN;\r
- OptEnt.Para->ParaList[15] = PXEBC_DHCP4_TAG_NIS_SERVER;\r
- OptEnt.Para->ParaList[16] = PXEBC_DHCP4_TAG_NTP_SERVER;\r
- OptEnt.Para->ParaList[17] = PXEBC_DHCP4_TAG_VENDOR;\r
- OptEnt.Para->ParaList[18] = PXEBC_DHCP4_TAG_REQUEST_IP;\r
- OptEnt.Para->ParaList[19] = PXEBC_DHCP4_TAG_LEASE;\r
- OptEnt.Para->ParaList[20] = PXEBC_DHCP4_TAG_SERVER_ID;\r
- OptEnt.Para->ParaList[21] = PXEBC_DHCP4_TAG_T1;\r
- OptEnt.Para->ParaList[22] = PXEBC_DHCP4_TAG_T2;\r
- OptEnt.Para->ParaList[23] = PXEBC_DHCP4_TAG_CLASS_ID;\r
- OptEnt.Para->ParaList[24] = PXEBC_DHCP4_TAG_TFTP;\r
- OptEnt.Para->ParaList[25] = PXEBC_DHCP4_TAG_BOOTFILE;\r
- OptEnt.Para->ParaList[26] = PXEBC_PXE_DHCP4_TAG_UUID;\r
+ OptEnt.Para = (PXEBC_DHCP4_OPTION_PARA *)OptList[Index]->Data;\r
+ OptEnt.Para->ParaList[0] = DHCP4_TAG_NETMASK;\r
+ OptEnt.Para->ParaList[1] = DHCP4_TAG_TIME_OFFSET;\r
+ OptEnt.Para->ParaList[2] = DHCP4_TAG_ROUTER;\r
+ OptEnt.Para->ParaList[3] = DHCP4_TAG_TIME_SERVER;\r
+ OptEnt.Para->ParaList[4] = DHCP4_TAG_NAME_SERVER;\r
+ OptEnt.Para->ParaList[5] = DHCP4_TAG_DNS_SERVER;\r
+ OptEnt.Para->ParaList[6] = DHCP4_TAG_HOSTNAME;\r
+ OptEnt.Para->ParaList[7] = DHCP4_TAG_BOOTFILE_LEN;\r
+ OptEnt.Para->ParaList[8] = DHCP4_TAG_DOMAINNAME;\r
+ OptEnt.Para->ParaList[9] = DHCP4_TAG_ROOTPATH;\r
+ OptEnt.Para->ParaList[10] = DHCP4_TAG_EXTEND_PATH;\r
+ OptEnt.Para->ParaList[11] = DHCP4_TAG_EMTU;\r
+ OptEnt.Para->ParaList[12] = DHCP4_TAG_TTL;\r
+ OptEnt.Para->ParaList[13] = DHCP4_TAG_BROADCAST;\r
+ OptEnt.Para->ParaList[14] = DHCP4_TAG_NIS_DOMAIN;\r
+ OptEnt.Para->ParaList[15] = DHCP4_TAG_NIS_SERVER;\r
+ OptEnt.Para->ParaList[16] = DHCP4_TAG_NTP_SERVER;\r
+ OptEnt.Para->ParaList[17] = DHCP4_TAG_VENDOR;\r
+ OptEnt.Para->ParaList[18] = DHCP4_TAG_REQUEST_IP;\r
+ OptEnt.Para->ParaList[19] = DHCP4_TAG_LEASE;\r
+ OptEnt.Para->ParaList[20] = DHCP4_TAG_SERVER_ID;\r
+ OptEnt.Para->ParaList[21] = DHCP4_TAG_T1;\r
+ OptEnt.Para->ParaList[22] = DHCP4_TAG_T2;\r
+ OptEnt.Para->ParaList[23] = DHCP4_TAG_VENDOR_CLASS_ID;\r
+ OptEnt.Para->ParaList[24] = DHCP4_TAG_TFTP;\r
+ OptEnt.Para->ParaList[25] = DHCP4_TAG_BOOTFILE;\r
+ OptEnt.Para->ParaList[26] = DHCP4_TAG_UUID;\r
OptEnt.Para->ParaList[27] = 0x80;\r
OptEnt.Para->ParaList[28] = 0x81;\r
OptEnt.Para->ParaList[29] = 0x82;\r
OptEnt.Para->ParaList[33] = 0x86;\r
OptEnt.Para->ParaList[34] = 0x87;\r
Index++;\r
- OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
+ OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
\r
//\r
// Append UUID/Guid-based client identifier option\r
//\r
- OptList[Index]->OpCode = PXEBC_PXE_DHCP4_TAG_UUID;\r
- OptList[Index]->Length = (UINT8) sizeof (PXEBC_DHCP4_OPTION_UUID);\r
- OptEnt.Uuid = (PXEBC_DHCP4_OPTION_UUID *) OptList[Index]->Data;\r
- OptEnt.Uuid->Type = 0;\r
+ OptList[Index]->OpCode = DHCP4_TAG_UUID;\r
+ OptList[Index]->Length = (UINT8)sizeof (PXEBC_DHCP4_OPTION_UUID);\r
+ OptEnt.Uuid = (PXEBC_DHCP4_OPTION_UUID *)OptList[Index]->Data;\r
+ OptEnt.Uuid->Type = 0;\r
Index++;\r
- OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
+ OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
\r
- if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *) OptEnt.Uuid->Guid))) {\r
+ if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *)OptEnt.Uuid->Guid))) {\r
//\r
- // Zero the Guid to indicate NOT programable if failed to get system Guid.\r
+ // Zero the Guid to indicate NOT programmable if failed to get system Guid.\r
//\r
+ DEBUG ((DEBUG_WARN, "PXE: Failed to read system GUID from the smbios table!\n"));\r
ZeroMem (OptEnt.Uuid->Guid, sizeof (EFI_GUID));\r
}\r
\r
//\r
// Append client network device interface option\r
//\r
- OptList[Index]->OpCode = PXEBC_PXE_DHCP4_TAG_UNDI;\r
- OptList[Index]->Length = (UINT8) sizeof (PXEBC_DHCP4_OPTION_UNDI);\r
- OptEnt.Undi = (PXEBC_DHCP4_OPTION_UNDI *) OptList[Index]->Data;\r
+ OptList[Index]->OpCode = DHCP4_TAG_UNDI;\r
+ OptList[Index]->Length = (UINT8)sizeof (PXEBC_DHCP4_OPTION_UNDI);\r
+ OptEnt.Undi = (PXEBC_DHCP4_OPTION_UNDI *)OptList[Index]->Data;\r
\r
if (Private->Nii != NULL) {\r
OptEnt.Undi->Type = Private->Nii->Type;\r
//\r
// Append client system architecture option\r
//\r
- OptList[Index]->OpCode = PXEBC_PXE_DHCP4_TAG_ARCH;\r
- OptList[Index]->Length = (UINT8) sizeof (PXEBC_DHCP4_OPTION_ARCH);\r
- OptEnt.Arch = (PXEBC_DHCP4_OPTION_ARCH *) OptList[Index]->Data;\r
- Value = HTONS (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE);\r
+ OptList[Index]->OpCode = DHCP4_TAG_ARCH;\r
+ OptList[Index]->Length = (UINT8)sizeof (PXEBC_DHCP4_OPTION_ARCH);\r
+ OptEnt.Arch = (PXEBC_DHCP4_OPTION_ARCH *)OptList[Index]->Data;\r
+ Value = HTONS (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE);\r
CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));\r
Index++;\r
- OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
+ OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);\r
\r
//\r
// Append vendor class identify option\r
//\r
- OptList[Index]->OpCode = PXEBC_DHCP4_TAG_CLASS_ID;\r
- OptList[Index]->Length = (UINT8) sizeof (PXEBC_DHCP4_OPTION_CLID);\r
- OptEnt.Clid = (PXEBC_DHCP4_OPTION_CLID *) OptList[Index]->Data;\r
+ OptList[Index]->OpCode = DHCP4_TAG_VENDOR_CLASS_ID;\r
+ OptList[Index]->Length = (UINT8)sizeof (PXEBC_DHCP4_OPTION_CLID);\r
+ OptEnt.Clid = (PXEBC_DHCP4_OPTION_CLID *)OptList[Index]->Data;\r
CopyMem (\r
OptEnt.Clid,\r
DEFAULT_CLASS_ID_DATA,\r
return Index;\r
}\r
\r
-\r
/**\r
Create a template DHCPv4 packet as a seed.\r
\r
**/\r
VOID\r
PxeBcSeedDhcp4Packet (\r
- OUT EFI_DHCP4_PACKET *Seed,\r
- IN EFI_UDP4_PROTOCOL *Udp4\r
+ OUT EFI_DHCP4_PACKET *Seed,\r
+ IN EFI_UDP4_PROTOCOL *Udp4\r
)\r
{\r
- EFI_SIMPLE_NETWORK_MODE Mode;\r
- EFI_DHCP4_HEADER *Header;\r
+ EFI_SIMPLE_NETWORK_MODE Mode;\r
+ EFI_DHCP4_HEADER *Header;\r
\r
//\r
// Get IfType and HwAddressSize from SNP mode data.\r
//\r
Udp4->GetModeData (Udp4, NULL, NULL, NULL, &Mode);\r
\r
- Seed->Size = sizeof (EFI_DHCP4_PACKET);\r
- Seed->Length = sizeof (Seed->Dhcp4);\r
- Header = &Seed->Dhcp4.Header;\r
+ Seed->Size = sizeof (EFI_DHCP4_PACKET);\r
+ Seed->Length = sizeof (Seed->Dhcp4);\r
+ Header = &Seed->Dhcp4.Header;\r
ZeroMem (Header, sizeof (EFI_DHCP4_HEADER));\r
- Header->OpCode = PXEBC_DHCP4_OPCODE_REQUEST;\r
- Header->HwType = Mode.IfType;\r
- Header->HwAddrLen = (UINT8) Mode.HwAddressSize;\r
+ Header->OpCode = PXEBC_DHCP4_OPCODE_REQUEST;\r
+ Header->HwType = Mode.IfType;\r
+ Header->HwAddrLen = (UINT8)Mode.HwAddressSize;\r
CopyMem (Header->ClientHwAddr, &Mode.CurrentAddress, Header->HwAddrLen);\r
\r
Seed->Dhcp4.Magik = PXEBC_DHCP4_MAGIC;\r
- Seed->Dhcp4.Option[0] = PXEBC_DHCP4_TAG_EOP;\r
+ Seed->Dhcp4.Option[0] = DHCP4_TAG_EOP;\r
}\r
\r
-\r
/**\r
Cache the DHCPv4 packet.\r
\r
@param[in] Dst Pointer to the cache buffer for DHCPv4 packet.\r
@param[in] Src Pointer to the DHCPv4 packet to be cached.\r
\r
+ @retval EFI_SUCCESS Packet is copied.\r
+ @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r
+\r
**/\r
-VOID\r
+EFI_STATUS\r
PxeBcCacheDhcp4Packet (\r
- IN EFI_DHCP4_PACKET *Dst,\r
- IN EFI_DHCP4_PACKET *Src\r
+ IN EFI_DHCP4_PACKET *Dst,\r
+ IN EFI_DHCP4_PACKET *Src\r
)\r
{\r
- ASSERT (Dst->Size >= Src->Length);\r
+ if (Dst->Size < Src->Length) {\r
+ return EFI_BUFFER_TOO_SMALL;\r
+ }\r
\r
CopyMem (&Dst->Dhcp4, &Src->Dhcp4, Src->Length);\r
Dst->Length = Src->Length;\r
-}\r
\r
+ return EFI_SUCCESS;\r
+}\r
\r
/**\r
Parse the cached DHCPv4 packet, including all the options.\r
**/\r
EFI_STATUS\r
PxeBcParseDhcp4Packet (\r
- IN PXEBC_DHCP4_PACKET_CACHE *Cache4\r
+ IN PXEBC_DHCP4_PACKET_CACHE *Cache4\r
)\r
{\r
- EFI_DHCP4_PACKET *Offer;\r
- EFI_DHCP4_PACKET_OPTION **Options;\r
- EFI_DHCP4_PACKET_OPTION *Option;\r
- PXEBC_OFFER_TYPE OfferType;\r
- UINTN Index;\r
- BOOLEAN IsProxyOffer;\r
- BOOLEAN IsPxeOffer;\r
- UINT8 *Ptr8;\r
-\r
- IsProxyOffer = FALSE;\r
- IsPxeOffer = FALSE;\r
+ EFI_DHCP4_PACKET *Offer;\r
+ EFI_DHCP4_PACKET_OPTION **Options;\r
+ EFI_DHCP4_PACKET_OPTION *Option;\r
+ PXEBC_OFFER_TYPE OfferType;\r
+ UINTN Index;\r
+ BOOLEAN IsProxyOffer;\r
+ BOOLEAN IsPxeOffer;\r
+ UINT8 *Ptr8;\r
+ BOOLEAN FileFieldOverloaded;\r
+\r
+ IsProxyOffer = FALSE;\r
+ IsPxeOffer = FALSE;\r
+ FileFieldOverloaded = FALSE;\r
\r
ZeroMem (Cache4->OptList, sizeof (Cache4->OptList));\r
ZeroMem (&Cache4->VendorOpt, sizeof (Cache4->VendorOpt));\r
mInterestedDhcp4Tags[Index]\r
);\r
}\r
+\r
//\r
- // Second, Check if bootfilename and serverhostname is overloaded to carry DHCP options refers to rfc-2132. \r
+ // Second, Check if bootfilename and serverhostname is overloaded to carry DHCP options refers to rfc-2132.\r
// If yes, try to parse options from the BootFileName field, then ServerName field.\r
//\r
Option = Options[PXEBC_DHCP4_TAG_INDEX_OVERLOAD];\r
if (Option != NULL) {\r
if ((Option->Data[0] & PXEBC_DHCP4_OVERLOAD_FILE) != 0) {\r
+ FileFieldOverloaded = TRUE;\r
for (Index = 0; Index < PXEBC_DHCP4_TAG_INDEX_MAX; Index++) {\r
if (Options[Index] == NULL) {\r
Options[Index] = PxeBcParseDhcp4Options (\r
- (UINT8 *) Offer->Dhcp4.Header.BootFileName,\r
+ (UINT8 *)Offer->Dhcp4.Header.BootFileName,\r
sizeof (Offer->Dhcp4.Header.BootFileName),\r
mInterestedDhcp4Tags[Index]\r
);\r
}\r
}\r
}\r
+\r
if ((Option->Data[0] & PXEBC_DHCP4_OVERLOAD_SERVER_NAME) != 0) {\r
for (Index = 0; Index < PXEBC_DHCP4_TAG_INDEX_MAX; Index++) {\r
if (Options[Index] == NULL) {\r
Options[Index] = PxeBcParseDhcp4Options (\r
- (UINT8 *) Offer->Dhcp4.Header.ServerName,\r
+ (UINT8 *)Offer->Dhcp4.Header.ServerName,\r
sizeof (Offer->Dhcp4.Header.ServerName),\r
mInterestedDhcp4Tags[Index]\r
);\r
//\r
Option = Options[PXEBC_DHCP4_TAG_INDEX_CLASS_ID];\r
if ((Option != NULL) && (Option->Length >= 9) &&\r
- (CompareMem (Option->Data, DEFAULT_CLASS_ID_DATA, 9) == 0)) {\r
+ (CompareMem (Option->Data, DEFAULT_CLASS_ID_DATA, 9) == 0))\r
+ {\r
IsPxeOffer = TRUE;\r
}\r
\r
// Parse PXE vendor options in this offer, and store the contents/pointers.\r
//\r
Option = Options[PXEBC_DHCP4_TAG_INDEX_VENDOR];\r
- if (IsPxeOffer && Option != NULL) {\r
+ if (IsPxeOffer && (Option != NULL)) {\r
PxeBcParseVendorOptions (Option, &Cache4->VendorOpt);\r
}\r
\r
// RFC 2132, Section 9.5 does not strictly state Bootfile name (option 67) is null\r
// terminated string. So force to append null terminated character at the end of string.\r
//\r
- Ptr8 = (UINT8*)&Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE]->Data[0];\r
+ Ptr8 = (UINT8 *)&Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE]->Data[0];\r
Ptr8 += Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE]->Length;\r
if (*(Ptr8 - 1) != '\0') {\r
*Ptr8 = '\0';\r
}\r
- } else if (Offer->Dhcp4.Header.BootFileName[0] != 0) {\r
+ } else if (!FileFieldOverloaded && (Offer->Dhcp4.Header.BootFileName[0] != 0)) {\r
//\r
// If the bootfile is not present and bootfilename is present in DHCPv4 packet, just parse it.\r
// Do not count dhcp option header here, or else will destroy the serverhostname.\r
//\r
Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] = (EFI_DHCP4_PACKET_OPTION *)\r
- (&Offer->Dhcp4.Header.BootFileName[0] -\r
- OFFSET_OF (EFI_DHCP4_PACKET_OPTION, Data[0]));\r
-\r
+ (&Offer->Dhcp4.Header.BootFileName[0] -\r
+ OFFSET_OF (EFI_DHCP4_PACKET_OPTION, Data[0]));\r
}\r
\r
//\r
// Determine offer type of the DHCPv4 packet.\r
//\r
Option = Options[PXEBC_DHCP4_TAG_INDEX_MSG_TYPE];\r
- if (Option == NULL || Option->Data[0] == 0) {\r
+ if ((Option == NULL) || (Option->Data[0] == 0)) {\r
//\r
// It's a Bootp offer.\r
//\r
OfferType = PxeOfferTypeBootp;\r
\r
- Option = Cache4->OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE];\r
+ Option = Cache4->OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE];\r
if (Option == NULL) {\r
//\r
// If the Bootp offer without bootfilename, discard it.\r
return EFI_DEVICE_ERROR;\r
}\r
} else {\r
-\r
if (IS_VALID_DISCOVER_VENDOR_OPTION (Cache4->VendorOpt.BitMap)) {\r
//\r
// It's a PXE10 offer with PXEClient and discover vendor option.\r
return EFI_SUCCESS;\r
}\r
\r
-\r
/**\r
Cache the DHCPv4 ack packet, and parse it on demand.\r
\r
@param[in] Ack Pointer to the DHCPv4 ack packet.\r
@param[in] Verified If TRUE, parse the ACK packet and store info into mode data.\r
\r
+ @retval EFI_SUCCESS Cache and parse the packet successfully.\r
+ @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r
+\r
**/\r
-VOID\r
+EFI_STATUS\r
PxeBcCopyDhcp4Ack (\r
- IN PXEBC_PRIVATE_DATA *Private,\r
- IN EFI_DHCP4_PACKET *Ack,\r
- IN BOOLEAN Verified\r
+ IN PXEBC_PRIVATE_DATA *Private,\r
+ IN EFI_DHCP4_PACKET *Ack,\r
+ IN BOOLEAN Verified\r
)\r
{\r
EFI_PXE_BASE_CODE_MODE *Mode;\r
+ EFI_STATUS Status;\r
\r
Mode = Private->PxeBc.Mode;\r
\r
- PxeBcCacheDhcp4Packet (&Private->DhcpAck.Dhcp4.Packet.Ack, Ack);\r
+ Status = PxeBcCacheDhcp4Packet (&Private->DhcpAck.Dhcp4.Packet.Ack, Ack);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
\r
if (Verified) {\r
//\r
CopyMem (&Mode->DhcpAck.Dhcpv4, &Ack->Dhcp4, Ack->Length);\r
Mode->DhcpAckReceived = TRUE;\r
}\r
-}\r
\r
+ return EFI_SUCCESS;\r
+}\r
\r
/**\r
Cache the DHCPv4 proxy offer packet according to the received order.\r
@param[in] Private Pointer to PxeBc private data.\r
@param[in] OfferIndex The received order of offer packets.\r
\r
+ @retval EFI_SUCCESS Cache and parse the packet successfully.\r
+ @retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.\r
+\r
**/\r
-VOID\r
+EFI_STATUS\r
PxeBcCopyProxyOffer (\r
- IN PXEBC_PRIVATE_DATA *Private,\r
- IN UINT32 OfferIndex\r
+ IN PXEBC_PRIVATE_DATA *Private,\r
+ IN UINT32 OfferIndex\r
)\r
{\r
EFI_PXE_BASE_CODE_MODE *Mode;\r
EFI_DHCP4_PACKET *Offer;\r
+ EFI_STATUS Status;\r
\r
ASSERT (OfferIndex < Private->OfferNum);\r
ASSERT (OfferIndex < PXEBC_OFFER_MAX_NUM);\r
//\r
// Cache the proxy offer packet and parse it.\r
//\r
- PxeBcCacheDhcp4Packet (&Private->ProxyOffer.Dhcp4.Packet.Offer, Offer);\r
+ Status = PxeBcCacheDhcp4Packet (&Private->ProxyOffer.Dhcp4.Packet.Offer, Offer);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
PxeBcParseDhcp4Packet (&Private->ProxyOffer.Dhcp4);\r
\r
//\r
//\r
CopyMem (&Mode->ProxyOffer.Dhcpv4, &Offer->Dhcp4, Offer->Length);\r
Mode->ProxyOfferReceived = TRUE;\r
-}\r
\r
+ return EFI_SUCCESS;\r
+}\r
\r
/**\r
Retry to request bootfile name by the BINL offer.\r
**/\r
EFI_STATUS\r
PxeBcRetryBinlOffer (\r
- IN PXEBC_PRIVATE_DATA *Private,\r
- IN UINT32 Index\r
+ IN PXEBC_PRIVATE_DATA *Private,\r
+ IN UINT32 Index\r
)\r
{\r
EFI_DHCP4_PACKET *Offer;\r
EFI_DHCP4_PACKET *Reply;\r
\r
ASSERT (Index < PXEBC_OFFER_MAX_NUM);\r
- ASSERT (Private->OfferBuffer[Index].Dhcp4.OfferType == PxeOfferTypeDhcpBinl ||\r
- Private->OfferBuffer[Index].Dhcp4.OfferType == PxeOfferTypeProxyBinl);\r
+ ASSERT (\r
+ Private->OfferBuffer[Index].Dhcp4.OfferType == PxeOfferTypeDhcpBinl ||\r
+ Private->OfferBuffer[Index].Dhcp4.OfferType == PxeOfferTypeProxyBinl\r
+ );\r
\r
Offer = &Private->OfferBuffer[Index].Dhcp4.Packet.Offer;\r
\r
return Status;\r
}\r
\r
- if (Cache4->OfferType != PxeOfferTypeProxyPxe10 &&\r
- Cache4->OfferType != PxeOfferTypeProxyWfm11a &&\r
- Cache4->OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL) {\r
+ if ((Cache4->OfferType != PxeOfferTypeProxyPxe10) &&\r
+ (Cache4->OfferType != PxeOfferTypeProxyWfm11a) &&\r
+ (Cache4->OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL))\r
+ {\r
//\r
// This BINL ack doesn't have discovery option set or multicast option set\r
// or bootfile name specified.\r
return EFI_SUCCESS;\r
}\r
\r
-\r
/**\r
Cache all the received DHCPv4 offers, and set OfferIndex and OfferCount.\r
\r
@param[in] Private Pointer to PxeBc private data.\r
@param[in] RcvdOffer Pointer to the received offer packet.\r
\r
+ @retval EFI_SUCCESS Cache and parse the packet successfully.\r
+ @retval Others Operation failed.\r
+\r
**/\r
-VOID\r
+EFI_STATUS\r
PxeBcCacheDhcp4Offer (\r
- IN PXEBC_PRIVATE_DATA *Private,\r
- IN EFI_DHCP4_PACKET *RcvdOffer\r
+ IN PXEBC_PRIVATE_DATA *Private,\r
+ IN EFI_DHCP4_PACKET *RcvdOffer\r
)\r
{\r
PXEBC_DHCP4_PACKET_CACHE *Cache4;\r
EFI_DHCP4_PACKET *Offer;\r
PXEBC_OFFER_TYPE OfferType;\r
+ EFI_STATUS Status;\r
\r
ASSERT (Private->OfferNum < PXEBC_OFFER_MAX_NUM);\r
Cache4 = &Private->OfferBuffer[Private->OfferNum].Dhcp4;\r
//\r
// Cache the content of DHCPv4 packet firstly.\r
//\r
- PxeBcCacheDhcp4Packet (Offer, RcvdOffer);\r
+ Status = PxeBcCacheDhcp4Packet (Offer, RcvdOffer);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
\r
//\r
// Validate the DHCPv4 packet, and parse the options and offer type.\r
//\r
if (EFI_ERROR (PxeBcParseDhcp4Packet (Cache4))) {\r
- return;\r
+ return EFI_ABORTED;\r
}\r
\r
//\r
Private->OfferIndex[OfferType][0] = Private->OfferNum;\r
Private->OfferCount[OfferType] = 1;\r
} else {\r
- return;\r
+ return EFI_ABORTED;\r
}\r
} else {\r
ASSERT (Private->OfferCount[OfferType] < PXEBC_OFFER_MAX_NUM);\r
//\r
Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;\r
Private->OfferCount[OfferType]++;\r
- } else if (Private->OfferCount[OfferType] > 0) {\r
+ } else if (((OfferType == PxeOfferTypeProxyPxe10) || (OfferType == PxeOfferTypeProxyWfm11a)) &&\r
+ (Private->OfferCount[OfferType] < 1))\r
+ {\r
//\r
// Only cache the first PXE10/WFM11a offer, and discard the others.\r
//\r
Private->OfferIndex[OfferType][0] = Private->OfferNum;\r
Private->OfferCount[OfferType] = 1;\r
} else {\r
- return ;\r
+ return EFI_ABORTED;\r
}\r
} else {\r
//\r
}\r
\r
Private->OfferNum++;\r
-}\r
\r
+ return EFI_SUCCESS;\r
+}\r
\r
/**\r
Select an DHCPv4 offer, and record SelectIndex and SelectProxyType.\r
**/\r
VOID\r
PxeBcSelectDhcp4Offer (\r
- IN PXEBC_PRIVATE_DATA *Private\r
+ IN PXEBC_PRIVATE_DATA *Private\r
)\r
{\r
- UINT32 Index;\r
- UINT32 OfferIndex;\r
- EFI_DHCP4_PACKET *Offer;\r
+ UINT32 Index;\r
+ UINT32 OfferIndex;\r
+ EFI_DHCP4_PACKET *Offer;\r
\r
Private->SelectIndex = 0;\r
\r
// 1. DhcpPxe10 offer\r
//\r
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpPxe10][0] + 1;\r
-\r
} else if (Private->OfferCount[PxeOfferTypeDhcpWfm11a] > 0) {\r
//\r
// 2. DhcpWfm11a offer\r
//\r
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpWfm11a][0] + 1;\r
-\r
- } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r
- Private->OfferCount[PxeOfferTypeProxyPxe10] > 0) {\r
+ } else if ((Private->OfferCount[PxeOfferTypeDhcpOnly] > 0) &&\r
+ (Private->OfferCount[PxeOfferTypeProxyPxe10] > 0))\r
+ {\r
//\r
// 3. DhcpOnly offer and ProxyPxe10 offer.\r
//\r
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r
Private->SelectProxyType = PxeOfferTypeProxyPxe10;\r
-\r
- } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r
- Private->OfferCount[PxeOfferTypeProxyWfm11a] > 0) {\r
+ } else if ((Private->OfferCount[PxeOfferTypeDhcpOnly] > 0) &&\r
+ (Private->OfferCount[PxeOfferTypeProxyWfm11a] > 0))\r
+ {\r
//\r
// 4. DhcpOnly offer and ProxyWfm11a offer.\r
//\r
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r
Private->SelectProxyType = PxeOfferTypeProxyWfm11a;\r
-\r
} else if (Private->OfferCount[PxeOfferTypeDhcpBinl] > 0) {\r
//\r
// 5. DhcpBinl offer.\r
//\r
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpBinl][0] + 1;\r
-\r
- } else if (Private->OfferCount[PxeOfferTypeDhcpOnly] > 0 &&\r
- Private->OfferCount[PxeOfferTypeProxyBinl] > 0) {\r
+ } else if ((Private->OfferCount[PxeOfferTypeDhcpOnly] > 0) &&\r
+ (Private->OfferCount[PxeOfferTypeProxyBinl] > 0))\r
+ {\r
//\r
// 6. DhcpOnly offer and ProxyBinl offer.\r
//\r
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;\r
Private->SelectProxyType = PxeOfferTypeProxyBinl;\r
-\r
} else {\r
//\r
// 7. DhcpOnly offer with bootfilename.\r
break;\r
}\r
}\r
+\r
//\r
// 8. Bootp offer with bootfilename.\r
//\r
OfferIndex = Private->OfferIndex[PxeOfferTypeBootp][0];\r
- if (Private->SelectIndex == 0 &&\r
- Private->OfferCount[PxeOfferTypeBootp] > 0 &&\r
- Private->OfferBuffer[OfferIndex].Dhcp4.OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL) {\r
+ if ((Private->SelectIndex == 0) &&\r
+ (Private->OfferCount[PxeOfferTypeBootp] > 0) &&\r
+ (Private->OfferBuffer[OfferIndex].Dhcp4.OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL))\r
+ {\r
Private->SelectIndex = OfferIndex + 1;\r
}\r
}\r
// Select offer by received order.\r
//\r
for (Index = 0; Index < Private->OfferNum; Index++) {\r
-\r
Offer = &Private->OfferBuffer[Index].Dhcp4.Packet.Offer;\r
\r
if (IS_PROXY_DHCP_OFFER (Offer)) {\r
}\r
\r
if (!Private->IsProxyRecved &&\r
- Private->OfferBuffer[Index].Dhcp4.OfferType == PxeOfferTypeDhcpOnly &&\r
- Private->OfferBuffer[Index].Dhcp4.OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL) {\r
+ (Private->OfferBuffer[Index].Dhcp4.OfferType == PxeOfferTypeDhcpOnly) &&\r
+ (Private->OfferBuffer[Index].Dhcp4.OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL))\r
+ {\r
//\r
// Skip if DhcpOnly offer without any other proxy offers or bootfilename.\r
//\r
}\r
}\r
\r
-\r
/**\r
Handle the DHCPv4 offer packet.\r
\r
- @param[in] Private Pointer to PxeBc private data.\r
+ @param[in] Private Pointer to PxeBc private data.\r
\r
- @retval EFI_SUCCESS Handled the DHCPv4 offer packet successfully.\r
- @retval EFI_NO_RESPONSE No response to the following request packet.\r
- @retval EFI_NOT_FOUND No boot filename received.\r
+ @retval EFI_SUCCESS Handled the DHCPv4 offer packet successfully.\r
+ @retval EFI_NO_RESPONSE No response to the following request packet.\r
+ @retval EFI_NOT_FOUND No boot filename received.\r
+ @retval EFI_BUFFER_TOO_SMALL Can't cache the offer pacet.\r
\r
**/\r
EFI_STATUS\r
PxeBcHandleDhcp4Offer (\r
- IN PXEBC_PRIVATE_DATA *Private\r
+ IN PXEBC_PRIVATE_DATA *Private\r
)\r
{\r
PXEBC_DHCP4_PACKET_CACHE *Cache4;\r
EFI_DHCP4_PACKET *Ack;\r
\r
ASSERT (Private->SelectIndex > 0);\r
- SelectIndex = (UINT32) (Private->SelectIndex - 1);\r
+ SelectIndex = (UINT32)(Private->SelectIndex - 1);\r
ASSERT (SelectIndex < PXEBC_OFFER_MAX_NUM);\r
- Cache4 = &Private->OfferBuffer[SelectIndex].Dhcp4;\r
- Options = Cache4->OptList;\r
- Status = EFI_SUCCESS;\r
+ Cache4 = &Private->OfferBuffer[SelectIndex].Dhcp4;\r
+ Options = Cache4->OptList;\r
+ Status = EFI_SUCCESS;\r
\r
if (Cache4->OfferType == PxeOfferTypeDhcpBinl) {\r
//\r
Status = EFI_NO_RESPONSE;\r
}\r
} else if (Cache4->OfferType == PxeOfferTypeDhcpOnly) {\r
-\r
if (Private->IsProxyRecved) {\r
//\r
// DhcpOnly offer is selected, so need try to request bootfile name.\r
break;\r
}\r
}\r
+\r
if (Index == Private->OfferCount[Private->SelectProxyType]) {\r
Status = EFI_NO_RESPONSE;\r
}\r
}\r
}\r
\r
- if (!EFI_ERROR (Status) && Private->SelectProxyType != PxeOfferTypeProxyBinl) {\r
+ if (!EFI_ERROR (Status) && (Private->SelectProxyType != PxeOfferTypeProxyBinl)) {\r
//\r
// Success to try to request by a ProxyPxe10 or ProxyWfm11a offer, copy and parse it.\r
//\r
- PxeBcCopyProxyOffer (Private, ProxyIndex);\r
+ Status = PxeBcCopyProxyOffer (Private, ProxyIndex);\r
}\r
} else {\r
//\r
- // Othewise, the bootfile name must be included in DhcpOnly offer.\r
+ // Otherwise, the bootfile name must be included in DhcpOnly offer.\r
//\r
if (Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL) {\r
Status = EFI_NOT_FOUND;\r
Ack = Offer;\r
}\r
\r
- PxeBcCopyDhcp4Ack (Private, Ack, TRUE);\r
+ Status = PxeBcCopyDhcp4Ack (Private, Ack, TRUE);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
Mode->DhcpDiscoverValid = TRUE;\r
}\r
\r
return Status;\r
}\r
\r
-\r
/**\r
EFI_DHCP4_CALLBACK is provided by the consumer of the EFI DHCPv4 Protocol driver\r
to intercept events that occurred in the configuration process.\r
EFI_STATUS\r
EFIAPI\r
PxeBcDhcp4CallBack (\r
- IN EFI_DHCP4_PROTOCOL *This,\r
- IN VOID *Context,\r
- IN EFI_DHCP4_STATE CurrentState,\r
- IN EFI_DHCP4_EVENT Dhcp4Event,\r
- IN EFI_DHCP4_PACKET *Packet OPTIONAL,\r
- OUT EFI_DHCP4_PACKET **NewPacket OPTIONAL\r
+ IN EFI_DHCP4_PROTOCOL *This,\r
+ IN VOID *Context,\r
+ IN EFI_DHCP4_STATE CurrentState,\r
+ IN EFI_DHCP4_EVENT Dhcp4Event,\r
+ IN EFI_DHCP4_PACKET *Packet OPTIONAL,\r
+ OUT EFI_DHCP4_PACKET **NewPacket OPTIONAL\r
)\r
{\r
PXEBC_PRIVATE_DATA *Private;\r
if ((Dhcp4Event != Dhcp4RcvdOffer) &&\r
(Dhcp4Event != Dhcp4SelectOffer) &&\r
(Dhcp4Event != Dhcp4SendDiscover) &&\r
- (Dhcp4Event != Dhcp4RcvdAck)) {\r
+ (Dhcp4Event != Dhcp4RcvdAck))\r
+ {\r
return EFI_SUCCESS;\r
}\r
\r
- Private = (PXEBC_PRIVATE_DATA *) Context;\r
- Mode = Private->PxeBc.Mode;\r
- Callback = Private->PxeBcCallback;\r
+ ASSERT (Packet != NULL);\r
+\r
+ Private = (PXEBC_PRIVATE_DATA *)Context;\r
+ Mode = Private->PxeBc.Mode;\r
+ Callback = Private->PxeBcCallback;\r
\r
//\r
// Override the Maximum DHCP Message Size.\r
MaxMsgSize = PxeBcParseDhcp4Options (\r
Packet->Dhcp4.Option,\r
GET_OPTION_BUFFER_LEN (Packet),\r
- PXEBC_DHCP4_TAG_MAXMSG\r
+ DHCP4_TAG_MAXMSG\r
);\r
if (MaxMsgSize != NULL) {\r
- Value = HTONS (PXEBC_DHCP4_PACKET_MAX_SIZE - 8);\r
+ Value = HTONS (PXEBC_DHCP4_PACKET_MAX_SIZE);\r
CopyMem (MaxMsgSize->Data, &Value, sizeof (Value));\r
}\r
\r
//\r
// Callback to user if any packets sent or received.\r
//\r
- if (Dhcp4Event != Dhcp4SelectOffer && Callback != NULL) {\r
- Received = (BOOLEAN) (Dhcp4Event == Dhcp4RcvdOffer || Dhcp4Event == Dhcp4RcvdAck);\r
- Status = Callback->Callback (\r
- Callback,\r
- Private->Function,\r
- Received,\r
- Packet->Length,\r
- (EFI_PXE_BASE_CODE_PACKET *) &Packet->Dhcp4\r
- );\r
+ if ((Dhcp4Event != Dhcp4SelectOffer) && (Callback != NULL)) {\r
+ Received = (BOOLEAN)(Dhcp4Event == Dhcp4RcvdOffer || Dhcp4Event == Dhcp4RcvdAck);\r
+ Status = Callback->Callback (\r
+ Callback,\r
+ Private->Function,\r
+ Received,\r
+ Packet->Length,\r
+ (EFI_PXE_BASE_CODE_PACKET *)&Packet->Dhcp4\r
+ );\r
if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {\r
return EFI_ABORTED;\r
}\r
Status = EFI_SUCCESS;\r
\r
switch (Dhcp4Event) {\r
+ case Dhcp4SendDiscover:\r
+ if (Packet->Length > PXEBC_DHCP4_PACKET_MAX_SIZE) {\r
+ //\r
+ // If the to be sent packet exceeds the maximum length, abort the DHCP process.\r
+ //\r
+ Status = EFI_ABORTED;\r
+ break;\r
+ }\r
\r
- case Dhcp4SendDiscover:\r
- //\r
- // Cache the DHCPv4 discover packet to mode data directly.\r
- // It need to check SendGuid as well as Dhcp4SendRequest.\r
- //\r
- CopyMem (&Mode->DhcpDiscover.Dhcpv4, &Packet->Dhcp4, Packet->Length);\r
-\r
- case Dhcp4SendRequest:\r
- if (Mode->SendGUID) {\r
//\r
- // Send the system Guid instead of the MAC address as the hardware address if required.\r
+ // Cache the DHCPv4 discover packet to mode data directly.\r
+ // It need to check SendGuid as well as Dhcp4SendRequest.\r
//\r
- if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *) Packet->Dhcp4.Header.ClientHwAddr))) {\r
+ CopyMem (&Mode->DhcpDiscover.Dhcpv4, &Packet->Dhcp4, Packet->Length);\r
+\r
+ case Dhcp4SendRequest:\r
+ if (Packet->Length > PXEBC_DHCP4_PACKET_MAX_SIZE) {\r
//\r
- // Zero the Guid to indicate NOT programable if failed to get system Guid.\r
+ // If the to be sent packet exceeds the maximum length, abort the DHCP process.\r
//\r
- ZeroMem (Packet->Dhcp4.Header.ClientHwAddr, sizeof (EFI_GUID));\r
+ Status = EFI_ABORTED;\r
+ break;\r
}\r
- Packet->Dhcp4.Header.HwAddrLen = (UINT8) sizeof (EFI_GUID);\r
- }\r
- break;\r
\r
- case Dhcp4RcvdOffer:\r
- Status = EFI_NOT_READY;\r
- if (Private->OfferNum < PXEBC_OFFER_MAX_NUM) {\r
+ if (Mode->SendGUID) {\r
+ //\r
+ // Send the system Guid instead of the MAC address as the hardware address if required.\r
+ //\r
+ if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *)Packet->Dhcp4.Header.ClientHwAddr))) {\r
+ //\r
+ // Zero the Guid to indicate NOT programmable if failed to get system Guid.\r
+ //\r
+ DEBUG ((DEBUG_WARN, "PXE: Failed to read system GUID from the smbios table!\n"));\r
+ ZeroMem (Packet->Dhcp4.Header.ClientHwAddr, sizeof (EFI_GUID));\r
+ }\r
+\r
+ Packet->Dhcp4.Header.HwAddrLen = (UINT8)sizeof (EFI_GUID);\r
+ }\r
+\r
+ break;\r
+\r
+ case Dhcp4RcvdOffer:\r
+ Status = EFI_NOT_READY;\r
+ if (Packet->Length > PXEBC_DHCP4_PACKET_MAX_SIZE) {\r
+ //\r
+ // Ignore the incoming packets which exceed the maximum length.\r
+ //\r
+ break;\r
+ }\r
+\r
+ if (Private->OfferNum < PXEBC_OFFER_MAX_NUM) {\r
+ //\r
+ // Cache the DHCPv4 offers to OfferBuffer[] for select later, and record\r
+ // the OfferIndex and OfferCount.\r
+ // If error happens, just ignore this packet and continue to wait more offer.\r
+ //\r
+ PxeBcCacheDhcp4Offer (Private, Packet);\r
+ }\r
+\r
+ break;\r
+\r
+ case Dhcp4SelectOffer:\r
+ ASSERT (NewPacket != NULL);\r
+\r
//\r
- // Cache the DHCPv4 offers to OfferBuffer[] for select later, and record\r
- // the OfferIndex and OfferCount.\r
+ // Select offer by the default policy or by order, and record the SelectIndex\r
+ // and SelectProxyType.\r
//\r
- PxeBcCacheDhcp4Offer (Private, Packet);\r
- }\r
- break;\r
+ PxeBcSelectDhcp4Offer (Private);\r
\r
- case Dhcp4SelectOffer:\r
- //\r
- // Select offer by the default policy or by order, and record the SelectIndex\r
- // and SelectProxyType.\r
- //\r
- PxeBcSelectDhcp4Offer (Private);\r
+ if (Private->SelectIndex == 0) {\r
+ Status = EFI_ABORTED;\r
+ } else {\r
+ *NewPacket = &Private->OfferBuffer[Private->SelectIndex - 1].Dhcp4.Packet.Offer;\r
+ }\r
\r
- if (Private->SelectIndex == 0) {\r
- Status = EFI_ABORTED;\r
- } else {\r
- *NewPacket = &Private->OfferBuffer[Private->SelectIndex - 1].Dhcp4.Packet.Offer;\r
- }\r
- break;\r
+ break;\r
\r
- case Dhcp4RcvdAck:\r
- //\r
- // Cache the DHCPv4 ack to Private->Dhcp4Ack, but it's not the final ack in mode data\r
- // without verification.\r
- //\r
- ASSERT (Private->SelectIndex != 0);\r
+ case Dhcp4RcvdAck:\r
+ //\r
+ // Cache the DHCPv4 ack to Private->Dhcp4Ack, but it's not the final ack in mode data\r
+ // without verification.\r
+ //\r
+ ASSERT (Private->SelectIndex != 0);\r
\r
- PxeBcCopyDhcp4Ack (Private, Packet, FALSE);\r
- break;\r
+ Status = PxeBcCopyDhcp4Ack (Private, Packet, FALSE);\r
+ if (EFI_ERROR (Status)) {\r
+ Status = EFI_ABORTED;\r
+ }\r
\r
- default:\r
- break;\r
+ break;\r
+\r
+ default:\r
+ break;\r
}\r
\r
return Status;\r
}\r
\r
-\r
/**\r
Build and send out the request packet for the bootfile, and parse the reply.\r
\r
**/\r
EFI_STATUS\r
PxeBcDhcp4Discover (\r
- IN PXEBC_PRIVATE_DATA *Private,\r
- IN UINT16 Type,\r
- IN UINT16 *Layer,\r
- IN BOOLEAN UseBis,\r
- IN EFI_IP_ADDRESS *DestIp,\r
- IN UINT16 IpCount,\r
- IN EFI_PXE_BASE_CODE_SRVLIST *SrvList\r
+ IN PXEBC_PRIVATE_DATA *Private,\r
+ IN UINT16 Type,\r
+ IN UINT16 *Layer,\r
+ IN BOOLEAN UseBis,\r
+ IN EFI_IP_ADDRESS *DestIp,\r
+ IN UINT16 IpCount,\r
+ IN EFI_PXE_BASE_CODE_SRVLIST *SrvList\r
)\r
{\r
- EFI_PXE_BASE_CODE_UDP_PORT Sport;\r
- EFI_PXE_BASE_CODE_MODE *Mode;\r
- EFI_DHCP4_PROTOCOL *Dhcp4;\r
- EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN Token;\r
- BOOLEAN IsBCast;\r
- EFI_STATUS Status;\r
- UINT16 RepIndex;\r
- UINT16 SrvIndex;\r
- UINT16 TryIndex;\r
- EFI_DHCP4_LISTEN_POINT ListenPoint;\r
- EFI_DHCP4_PACKET *Response;\r
- UINT8 Buffer[PXEBC_DHCP4_OPTION_MAX_SIZE];\r
- EFI_DHCP4_PACKET_OPTION *OptList[PXEBC_DHCP4_OPTION_MAX_NUM];\r
- UINT32 OptCount;\r
- EFI_DHCP4_PACKET_OPTION *PxeOpt;\r
- PXEBC_OPTION_BOOT_ITEM *PxeBootItem;\r
- UINT8 VendorOptLen;\r
- UINT32 Xid;\r
-\r
- Mode = Private->PxeBc.Mode;\r
- Dhcp4 = Private->Dhcp4;\r
- Status = EFI_SUCCESS;\r
+ EFI_PXE_BASE_CODE_UDP_PORT Sport;\r
+ EFI_PXE_BASE_CODE_MODE *Mode;\r
+ EFI_DHCP4_PROTOCOL *Dhcp4;\r
+ EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN Token;\r
+ BOOLEAN IsBCast;\r
+ EFI_STATUS Status;\r
+ UINT16 RepIndex;\r
+ UINT16 SrvIndex;\r
+ UINT16 TryIndex;\r
+ EFI_DHCP4_LISTEN_POINT ListenPoint;\r
+ EFI_DHCP4_PACKET *Response;\r
+ UINT8 Buffer[PXEBC_DHCP4_OPTION_MAX_SIZE];\r
+ EFI_DHCP4_PACKET_OPTION *OptList[PXEBC_DHCP4_OPTION_MAX_NUM];\r
+ UINT32 OptCount;\r
+ EFI_DHCP4_PACKET_OPTION *PxeOpt;\r
+ PXEBC_OPTION_BOOT_ITEM *PxeBootItem;\r
+ UINT8 VendorOptLen;\r
+ UINT32 Xid;\r
+\r
+ Mode = Private->PxeBc.Mode;\r
+ Dhcp4 = Private->Dhcp4;\r
+ Status = EFI_SUCCESS;\r
\r
ZeroMem (&Token, sizeof (EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN));\r
\r
IsBCast = FALSE;\r
}\r
\r
- if (!UseBis && Layer != NULL) {\r
+ if (!UseBis && (Layer != NULL)) {\r
*Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;\r
}\r
\r
//\r
// Add vendor option of PXE_BOOT_ITEM\r
//\r
- VendorOptLen = (UINT8) ((sizeof (EFI_DHCP4_PACKET_OPTION) - 1) * 2 + sizeof (PXEBC_OPTION_BOOT_ITEM) + 1);\r
+ VendorOptLen = (UINT8)((sizeof (EFI_DHCP4_PACKET_OPTION) - 1) * 2 + sizeof (PXEBC_OPTION_BOOT_ITEM) + 1);\r
OptList[OptCount] = AllocateZeroPool (VendorOptLen);\r
if (OptList[OptCount] == NULL) {\r
return EFI_OUT_OF_RESOURCES;\r
}\r
\r
- OptList[OptCount]->OpCode = PXEBC_DHCP4_TAG_VENDOR;\r
- OptList[OptCount]->Length = (UINT8) (VendorOptLen - 2);\r
- PxeOpt = (EFI_DHCP4_PACKET_OPTION *) OptList[OptCount]->Data;\r
- PxeOpt->OpCode = PXEBC_VENDOR_TAG_BOOT_ITEM;\r
- PxeOpt->Length = (UINT8) sizeof (PXEBC_OPTION_BOOT_ITEM);\r
- PxeBootItem = (PXEBC_OPTION_BOOT_ITEM *) PxeOpt->Data;\r
- PxeBootItem->Type = HTONS (Type);\r
- PxeOpt->Data[PxeOpt->Length] = PXEBC_DHCP4_TAG_EOP;\r
+ OptList[OptCount]->OpCode = DHCP4_TAG_VENDOR;\r
+ OptList[OptCount]->Length = (UINT8)(VendorOptLen - 2);\r
+ PxeOpt = (EFI_DHCP4_PACKET_OPTION *)OptList[OptCount]->Data;\r
+ PxeOpt->OpCode = PXEBC_VENDOR_TAG_BOOT_ITEM;\r
+ PxeOpt->Length = (UINT8)sizeof (PXEBC_OPTION_BOOT_ITEM);\r
+ PxeBootItem = (PXEBC_OPTION_BOOT_ITEM *)PxeOpt->Data;\r
+ PxeBootItem->Type = HTONS (Type);\r
+ PxeOpt->Data[PxeOpt->Length] = DHCP4_TAG_EOP;\r
\r
if (Layer != NULL) {\r
- PxeBootItem->Layer = HTONS (*Layer);\r
+ PxeBootItem->Layer = HTONS (*Layer);\r
}\r
\r
OptCount++;\r
}\r
\r
if (Mode->SendGUID) {\r
- if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *) Token.Packet->Dhcp4.Header.ClientHwAddr))) {\r
+ if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *)Token.Packet->Dhcp4.Header.ClientHwAddr))) {\r
//\r
- // Zero the Guid to indicate NOT programable if failed to get system Guid.\r
+ // Zero the Guid to indicate NOT programmable if failed to get system Guid.\r
//\r
+ DEBUG ((DEBUG_WARN, "PXE: Failed to read system GUID from the smbios table!\n"));\r
ZeroMem (Token.Packet->Dhcp4.Header.ClientHwAddr, sizeof (EFI_GUID));\r
}\r
- Token.Packet->Dhcp4.Header.HwAddrLen = (UINT8) sizeof (EFI_GUID);\r
+\r
+ Token.Packet->Dhcp4.Header.HwAddrLen = (UINT8)sizeof (EFI_GUID);\r
}\r
\r
//\r
//\r
Xid = NET_RANDOM (NetRandomInitSeed ());\r
Token.Packet->Dhcp4.Header.Xid = HTONL (Xid);\r
- Token.Packet->Dhcp4.Header.Reserved = HTONS ((UINT16) ((IsBCast) ? 0x8000 : 0x0));\r
+ Token.Packet->Dhcp4.Header.Reserved = HTONS ((UINT16)((IsBCast) ? 0x8000 : 0x0));\r
CopyMem (&Token.Packet->Dhcp4.Header.ClientAddr, &Private->StationIp, sizeof (EFI_IPv4_ADDRESS));\r
\r
Token.RemotePort = Sport;\r
CopyMem (&Token.GatewayAddress, &Private->GatewayIp, sizeof (EFI_IPv4_ADDRESS));\r
\r
if (!IsBCast) {\r
- Token.ListenPointCount = 1;\r
- Token.ListenPoints = &ListenPoint;\r
- Token.ListenPoints[0].ListenPort = PXEBC_BS_DISCOVER_PORT;\r
- CopyMem (&Token.ListenPoints[0].ListenAddress, &Private->StationIp, sizeof(EFI_IPv4_ADDRESS));\r
- CopyMem (&Token.ListenPoints[0].SubnetMask, &Private->SubnetMask, sizeof(EFI_IPv4_ADDRESS));\r
+ Token.ListenPointCount = 1;\r
+ Token.ListenPoints = &ListenPoint;\r
+ Token.ListenPoints[0].ListenPort = PXEBC_BS_DISCOVER_PORT;\r
+ CopyMem (&Token.ListenPoints[0].ListenAddress, &Private->StationIp, sizeof (EFI_IPv4_ADDRESS));\r
+ CopyMem (&Token.ListenPoints[0].SubnetMask, &Private->SubnetMask, sizeof (EFI_IPv4_ADDRESS));\r
}\r
\r
//\r
// Send out the request packet to discover the bootfile.\r
//\r
for (TryIndex = 1; TryIndex <= PXEBC_BOOT_REQUEST_RETRIES; TryIndex++) {\r
-\r
- Token.TimeoutValue = (UINT16) (PXEBC_BOOT_REQUEST_TIMEOUT * TryIndex);\r
- Token.Packet->Dhcp4.Header.Seconds = (UINT16) (PXEBC_BOOT_REQUEST_TIMEOUT * (TryIndex - 1));\r
+ Token.TimeoutValue = (UINT16)(PXEBC_BOOT_REQUEST_TIMEOUT * TryIndex);\r
+ Token.Packet->Dhcp4.Header.Seconds = (UINT16)(PXEBC_BOOT_REQUEST_TIMEOUT * (TryIndex - 1));\r
\r
Status = Dhcp4->TransmitReceive (Dhcp4, &Token);\r
if (Token.Status != EFI_TIMEOUT) {\r
}\r
\r
if (!EFI_ERROR (Status)) {\r
-\r
- RepIndex = 0;\r
- SrvIndex = 0;\r
- Response = Token.ResponseList;\r
+ RepIndex = 0;\r
+ SrvIndex = 0;\r
+ Response = Token.ResponseList;\r
//\r
// Find the right PXE Reply according to server address.\r
//\r
while (RepIndex < Token.ResponseCount) {\r
+ if (Response->Length > PXEBC_DHCP4_PACKET_MAX_SIZE) {\r
+ SrvIndex = 0;\r
+ RepIndex++;\r
+ Response = (EFI_DHCP4_PACKET *)((UINT8 *)Response + Response->Size);\r
+ continue;\r
+ }\r
\r
while (SrvIndex < IpCount) {\r
if (SrvList[SrvIndex].AcceptAnyResponse) {\r
break;\r
}\r
+\r
if ((SrvList[SrvIndex].Type == Type) &&\r
- EFI_IP4_EQUAL (&Response->Dhcp4.Header.ServerAddr, &SrvList[SrvIndex].IpAddr)) {\r
+ EFI_IP4_EQUAL (&Response->Dhcp4.Header.ServerAddr, &SrvList[SrvIndex].IpAddr))\r
+ {\r
break;\r
}\r
+\r
SrvIndex++;\r
}\r
\r
\r
SrvIndex = 0;\r
RepIndex++;\r
-\r
- Response = (EFI_DHCP4_PACKET *) ((UINT8 *) Response + Response->Size);\r
+ Response = (EFI_DHCP4_PACKET *)((UINT8 *)Response + Response->Size);\r
}\r
\r
if (RepIndex < Token.ResponseCount) {\r
// Especially for PXE discover packet, store it into mode data here.\r
//\r
if (Private->IsDoDiscover) {\r
- PxeBcCacheDhcp4Packet (&Private->PxeReply.Dhcp4.Packet.Ack, Response);\r
+ Status = PxeBcCacheDhcp4Packet (&Private->PxeReply.Dhcp4.Packet.Ack, Response);\r
+ if (EFI_ERROR (Status)) {\r
+ goto ON_EXIT;\r
+ }\r
+\r
CopyMem (&Mode->PxeDiscover, &Token.Packet->Dhcp4, Token.Packet->Length);\r
} else {\r
- PxeBcCacheDhcp4Packet (&Private->ProxyOffer.Dhcp4.Packet.Offer, Response);\r
+ Status = PxeBcCacheDhcp4Packet (&Private->ProxyOffer.Dhcp4.Packet.Offer, Response);\r
+ if (EFI_ERROR (Status)) {\r
+ goto ON_EXIT;\r
+ }\r
}\r
} else {\r
//\r
//\r
Status = EFI_NOT_FOUND;\r
}\r
- if (Token.ResponseList != NULL) {\r
- FreePool (Token.ResponseList);\r
- }\r
}\r
\r
- FreePool (Token.Packet);\r
+ON_EXIT:\r
+\r
+ if (Token.ResponseList != NULL) {\r
+ FreePool (Token.ResponseList);\r
+ }\r
+\r
+ if (Token.Packet != NULL) {\r
+ FreePool (Token.Packet);\r
+ }\r
+\r
return Status;\r
}\r
\r
+/**\r
+ Switch the Ip4 policy to static.\r
+\r
+ @param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r
+\r
+ @retval EFI_SUCCESS The policy is already configured to static.\r
+ @retval Others Other error as indicated..\r
+\r
+**/\r
+EFI_STATUS\r
+PxeBcSetIp4Policy (\r
+ IN PXEBC_PRIVATE_DATA *Private\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_IP4_CONFIG2_PROTOCOL *Ip4Config2;\r
+ EFI_IP4_CONFIG2_POLICY Policy;\r
+ UINTN DataSize;\r
+\r
+ Ip4Config2 = Private->Ip4Config2;\r
+ DataSize = sizeof (EFI_IP4_CONFIG2_POLICY);\r
+ Status = Ip4Config2->GetData (\r
+ Ip4Config2,\r
+ Ip4Config2DataTypePolicy,\r
+ &DataSize,\r
+ &Policy\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ if (Policy != Ip4Config2PolicyStatic) {\r
+ Policy = Ip4Config2PolicyStatic;\r
+ Status = Ip4Config2->SetData (\r
+ Ip4Config2,\r
+ Ip4Config2DataTypePolicy,\r
+ sizeof (EFI_IP4_CONFIG2_POLICY),\r
+ &Policy\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
\r
/**\r
Start the D.O.R.A DHCPv4 process to acquire the IPv4 address and other PXE boot information.\r
**/\r
EFI_STATUS\r
PxeBcDhcp4Dora (\r
- IN PXEBC_PRIVATE_DATA *Private,\r
- IN EFI_DHCP4_PROTOCOL *Dhcp4\r
+ IN PXEBC_PRIVATE_DATA *Private,\r
+ IN EFI_DHCP4_PROTOCOL *Dhcp4\r
)\r
{\r
- EFI_PXE_BASE_CODE_MODE *PxeMode;\r
- EFI_DHCP4_CONFIG_DATA Config;\r
- EFI_DHCP4_MODE_DATA Mode;\r
- EFI_DHCP4_PACKET_OPTION *OptList[PXEBC_DHCP4_OPTION_MAX_NUM];\r
- UINT8 Buffer[PXEBC_DHCP4_OPTION_MAX_SIZE];\r
- UINT32 OptCount;\r
- EFI_STATUS Status;\r
+ EFI_PXE_BASE_CODE_MODE *PxeMode;\r
+ EFI_DHCP4_CONFIG_DATA Config;\r
+ EFI_DHCP4_MODE_DATA Mode;\r
+ EFI_DHCP4_PACKET_OPTION *OptList[PXEBC_DHCP4_OPTION_MAX_NUM];\r
+ UINT8 Buffer[PXEBC_DHCP4_OPTION_MAX_SIZE];\r
+ UINT32 OptCount;\r
+ EFI_STATUS Status;\r
\r
ASSERT (Dhcp4 != NULL);\r
\r
- Status = EFI_SUCCESS;\r
- PxeMode = Private->PxeBc.Mode;\r
+ Status = EFI_SUCCESS;\r
+ PxeMode = Private->PxeBc.Mode;\r
\r
//\r
// Build option list for the request packet.\r
//\r
OptCount = PxeBcBuildDhcp4Options (Private, OptList, Buffer, FALSE);\r
- ASSERT (OptCount> 0);\r
+ ASSERT (OptCount > 0);\r
\r
ZeroMem (&Mode, sizeof (EFI_DHCP4_MODE_DATA));\r
ZeroMem (&Config, sizeof (EFI_DHCP4_CONFIG_DATA));\r
ZeroMem (Private->OfferCount, sizeof (Private->OfferCount));\r
ZeroMem (Private->OfferIndex, sizeof (Private->OfferIndex));\r
\r
- //\r
- // Start DHCPv4 D.O.R.A. process to acquire IPv4 address. This may \r
- // have already been done, thus do not leave in error if the return\r
- // code is EFI_ALREADY_STARTED.\r
- //\r
Status = Dhcp4->Start (Dhcp4, NULL);\r
- if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {\r
+ if (EFI_ERROR (Status)) {\r
if (Status == EFI_ICMP_ERROR) {\r
PxeMode->IcmpErrorReceived = TRUE;\r
}\r
+\r
+ if ((Status == EFI_TIMEOUT) && (Private->OfferNum > 0)) {\r
+ Status = EFI_NO_RESPONSE;\r
+ }\r
+\r
goto ON_EXIT;\r
}\r
\r