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audk/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.c

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/** @file
Copyright (c) 2007 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
PxeBcImpl.c
Abstract:
Interface routines for PxeBc
**/
#include "PxeBcImpl.h"
/**
Get and record the arp cache
@param This Pointer to EFI_PXE_BC_PROTOCOL
@retval EFI_SUCCESS Arp cache updated successfully
@retval others If error occurs when updating arp cache
**/
STATIC
EFI_STATUS
UpdateArpCache (
IN EFI_PXE_BASE_CODE_PROTOCOL * This
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_STATUS Status;
UINT32 EntryLength;
UINT32 EntryCount;
EFI_ARP_FIND_DATA *Entries;
UINT32 Index;
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
Status = Private->Arp->Find (Private->Arp, TRUE, NULL, &EntryLength, &EntryCount, &Entries, TRUE);
if (EFI_ERROR (Status)) {
return Status;
}
Mode->ArpCacheEntries = MIN (EntryCount, EFI_PXE_BASE_CODE_MAX_ARP_ENTRIES);
for (Index = 0; Index < Mode->ArpCacheEntries; Index ++) {
CopyMem (&Mode->ArpCache[Index].IpAddr, Entries + 1, Entries->SwAddressLength);
CopyMem (&Mode->ArpCache[Index].MacAddr, (UINT8 *)(Entries + 1) + Entries->SwAddressLength, Entries->HwAddressLength);
//
// Slip to the next FindData.
//
Entries = (EFI_ARP_FIND_DATA *)((UINT8 *)Entries + EntryLength);
}
return EFI_SUCCESS;
}
/**
Timeout routine to catch arp cache.
@param Event Pointer to EFI_PXE_BC_PROTOCOL
@param Context Context of the timer event
**/
STATIC
VOID
EFIAPI
ArpCacheUpdateTimeout (
IN EFI_EVENT Event,
IN VOID *Context
)
{
UpdateArpCache ((EFI_PXE_BASE_CODE_PROTOCOL *) Context);
}
/**
Timeout routine to catch arp cache.
@param Event Pointer to EFI_PXE_BC_PROTOCOL
@param Context
**/
STATIC
BOOLEAN
FindInArpCache (
EFI_PXE_BASE_CODE_MODE *PxeBcMode,
EFI_IPv4_ADDRESS *Ip4Addr,
EFI_MAC_ADDRESS *MacAddress
)
{
UINT32 Index;
for (Index = 0; Index < PxeBcMode->ArpCacheEntries; Index ++) {
if (EFI_IP4_EQUAL (&PxeBcMode->ArpCache[Index].IpAddr.v4, Ip4Addr)) {
CopyMem (MacAddress, &PxeBcMode->ArpCache[Index].MacAddr, sizeof (EFI_MAC_ADDRESS));
return TRUE;
}
}
return FALSE;
}
/**
Notify function for the ICMP receive token, used to process
the received ICMP packets.
@param Context The context passed in by the event notifier.
@return None.
**/
STATIC
VOID
EFIAPI
IcmpErrorListenHandlerDpc (
IN VOID *Context
)
{
EFI_STATUS Status;
EFI_IP4_RECEIVE_DATA *RxData;
EFI_IP4_PROTOCOL *Ip4;
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
UINTN Index;
UINT32 CopiedLen;
UINT8 *CopiedPointer;
Private = (PXEBC_PRIVATE_DATA *) Context;
Mode = &Private->Mode;
Status = Private->IcmpErrorRcvToken.Status;
RxData = Private->IcmpErrorRcvToken.Packet.RxData;
Ip4 = Private->Ip4;
if (EFI_ABORTED == Status) {
//
// The reception is actively aborted by the consumer, directly return.
//
return;
}
if ((EFI_SUCCESS != Status) || (NULL == RxData)) {
//
// Only process the normal packets and the icmp error packets, if RxData is NULL
// with Status == EFI_SUCCESS or EFI_ICMP_ERROR, just resume the receive although
// this should be a bug of the low layer (IP).
//
goto Resume;
}
if ((EFI_IP4 (RxData->Header->SourceAddress) != 0) &&
!Ip4IsUnicast (EFI_NTOHL (RxData->Header->SourceAddress), 0)) {
//
// The source address is not zero and it's not a unicast IP address, discard it.
//
goto CleanUp;
}
if (!EFI_IP4_EQUAL (&RxData->Header->DestinationAddress, &Mode->StationIp.v4)) {
//
// The dest address is not equal to Station Ip address, discard it.
//
goto CleanUp;
}
//
// Constructor ICMP error packet
//
CopiedLen = 0;
CopiedPointer = (UINT8 *) &Mode->IcmpError;
for (Index = 0; Index < RxData->FragmentCount; Index ++) {
CopiedLen += RxData->FragmentTable[Index].FragmentLength;
if (CopiedLen <= sizeof (EFI_PXE_BASE_CODE_ICMP_ERROR)) {
CopyMem (CopiedPointer, RxData->FragmentTable[Index].FragmentBuffer, RxData->FragmentTable[Index].FragmentLength);
} else {
CopyMem (CopiedPointer, RxData->FragmentTable[Index].FragmentBuffer, CopiedLen - sizeof (EFI_PXE_BASE_CODE_ICMP_ERROR));
}
CopiedPointer += CopiedLen;
}
goto Resume;
CleanUp:
gBS->SignalEvent (RxData->RecycleSignal);
Resume:
Ip4->Receive (Ip4, &(Private->IcmpErrorRcvToken));
}
/**
Request IcmpErrorListenHandlerDpc as a DPC at TPL_CALLBACK
@param Event The event signaled.
@param Context The context passed in by the event notifier.
@return None.
**/
STATIC
VOID
EFIAPI
IcmpErrorListenHandler (
IN EFI_EVENT Event,
IN VOID *Context
)
{
//
// Request IpIoListenHandlerDpc as a DPC at TPL_CALLBACK
//
NetLibQueueDpc (TPL_CALLBACK, IcmpErrorListenHandlerDpc, Context);
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param UseIpv6 GC_NOTO: add argument
description
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_ALREADY_STARTED GC_NOTO: Add description for
return value
@retval EFI_UNSUPPORTED GC_NOTO: Add description for
return value
@retval EFI_SUCCESS GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcStart (
IN EFI_PXE_BASE_CODE_PROTOCOL *This,
IN BOOLEAN UseIpv6
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_STATUS Status;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
if (Mode->Started) {
return EFI_ALREADY_STARTED;
}
if (UseIpv6) {
//
// IPv6 is not supported now.
//
return EFI_UNSUPPORTED;
}
//
// Configure the udp4 instance to let it receive data
//
Status = Private->Udp4Read->Configure (Private->Udp4Read, &Private->Udp4CfgData);
if (EFI_ERROR (Status)) {
return Status;
}
Private->AddressIsOk = FALSE;
ZeroMem (Mode, sizeof (EFI_PXE_BASE_CODE_MODE));
Mode->Started = TRUE;
Mode->TTL = DEFAULT_TTL;
Mode->ToS = DEFAULT_ToS;
Mode->AutoArp = TRUE;
//
// Create the event for Arp Cache checking.
//
Status = gBS->CreateEvent (
EVT_TIMER | EVT_NOTIFY_SIGNAL,
TPL_CALLBACK,
ArpCacheUpdateTimeout,
This,
&Private->GetArpCacheEvent
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Start the timeout timer event.
//
Status = gBS->SetTimer (
Private->GetArpCacheEvent,
TimerPeriodic,
TICKS_PER_SECOND
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Create ICMP error receiving event
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
IcmpErrorListenHandler,
Private,
&(Private->IcmpErrorRcvToken.Event)
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
Status = Private->Ip4->Configure (Private->Ip4, &Private->Ip4ConfigData);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// start to listen incoming packet
//
Status = Private->Ip4->Receive (Private->Ip4, &Private->IcmpErrorRcvToken);
if (!EFI_ERROR (Status)) {
return Status;
}
ON_EXIT:
Private->Ip4->Configure (Private->Ip4, NULL);
if (Private->IcmpErrorRcvToken.Event != NULL) {
gBS->CloseEvent (Private->IcmpErrorRcvToken.Event);
}
if (Private->GetArpCacheEvent != NULL) {
gBS->SetTimer (Private->GetArpCacheEvent, TimerCancel, 0);
gBS->CloseEvent (Private->GetArpCacheEvent);
}
Mode->Started = FALSE;
Mode->TTL = 0;
Mode->ToS = 0;
Mode->AutoArp = FALSE;
return Status;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_NOT_STARTED GC_NOTO: Add description for
return value
@retval EFI_SUCCESS GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcStop (
IN EFI_PXE_BASE_CODE_PROTOCOL *This
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
if (!Mode->Started) {
return EFI_NOT_STARTED;
}
Private->Ip4->Cancel (Private->Ip4, NULL);
//
// Dispatch the DPCs queued by the NotifyFunction of the canceled rx token's
// events.
//
NetLibDispatchDpc ();
Private->Ip4->Configure (Private->Ip4, NULL);
//
// Close the ICMP error receiving event.
//
gBS->CloseEvent (Private->IcmpErrorRcvToken.Event);
//
// Cancel the TimeoutEvent timer.
//
gBS->SetTimer (Private->GetArpCacheEvent, TimerCancel, 0);
//
// Close the TimeoutEvent event.
//
gBS->CloseEvent (Private->GetArpCacheEvent);
Mode->Started = FALSE;
Private->CurrentUdpSrcPort = 0;
Private->Udp4Write->Configure (Private->Udp4Write, NULL);
Private->Udp4Read->Configure (Private->Udp4Read, NULL);
Private->Dhcp4->Stop (Private->Dhcp4);
Private->Dhcp4->Configure (Private->Dhcp4, NULL);
Private->FileSize = 0;
return EFI_SUCCESS;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param SortOffers GC_NOTO: add argument
description
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_NOT_STARTED GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcDhcp (
IN EFI_PXE_BASE_CODE_PROTOCOL *This,
IN BOOLEAN SortOffers
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_DHCP4_PROTOCOL *Dhcp4;
EFI_DHCP4_CONFIG_DATA Dhcp4CfgData;
EFI_DHCP4_MODE_DATA Dhcp4Mode;
EFI_DHCP4_PACKET_OPTION *OptList[PXEBC_DHCP4_MAX_OPTION_NUM];
UINT32 OptCount;
UINT32 DiscoverTimeout;
UINTN Index;
EFI_STATUS Status;
EFI_ARP_CONFIG_DATA ArpConfigData;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Status = EFI_SUCCESS;
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
Dhcp4 = Private->Dhcp4;
Private->Function = EFI_PXE_BASE_CODE_FUNCTION_DHCP;
Private->SortOffers = SortOffers;
if (!Mode->Started) {
return EFI_NOT_STARTED;
}
Mode->IcmpErrorReceived = FALSE;
//
// Initialize the DHCP options and build the option list
//
OptCount = PxeBcBuildDhcpOptions (Private, OptList, TRUE);
//
// Set the DHCP4 config data.
//
ZeroMem (&Dhcp4CfgData, sizeof (EFI_DHCP4_CONFIG_DATA));
Dhcp4CfgData.OptionCount = OptCount;
Dhcp4CfgData.OptionList = OptList;
Dhcp4CfgData.Dhcp4Callback = PxeBcDhcpCallBack;
Dhcp4CfgData.CallbackContext = Private;
Dhcp4CfgData.DiscoverTryCount = 1;
Dhcp4CfgData.DiscoverTimeout = &DiscoverTimeout;
for (Index = 0; Index < PXEBC_DHCP4_DISCOVER_RETRIES; Index++) {
//
// The four discovery timeouts are 4, 8, 16, 32 seconds respectively.
//
DiscoverTimeout = (PXEBC_DHCP4_DISCOVER_INIT_TIMEOUT << Index);
Status = Dhcp4->Configure (Dhcp4, &Dhcp4CfgData);
if (EFI_ERROR (Status)) {
break;
}
//
// Zero those arrays to record the varies numbers of DHCP OFFERS.
//
Private->NumOffers = 0;
Private->BootpIndex = 0;
ZeroMem (Private->ServerCount, sizeof (Private->ServerCount));
ZeroMem (Private->ProxyIndex, sizeof (Private->ProxyIndex));
Status = Dhcp4->Start (Dhcp4, NULL);
if (EFI_ERROR (Status)) {
if (Status == EFI_TIMEOUT) {
//
// If no response is received or all received offers don't match
// the PXE boot requirements, EFI_TIMEOUT will be returned.
//
continue;
}
if (Status == EFI_ICMP_ERROR) {
Mode->IcmpErrorReceived = TRUE;
}
//
// Other error status means the DHCP really fails.
//
break;
}
Status = Dhcp4->GetModeData (Dhcp4, &Dhcp4Mode);
if (EFI_ERROR (Status)) {
break;
}
ASSERT (Dhcp4Mode.State == Dhcp4Bound);
CopyMem (&Private->StationIp, &Dhcp4Mode.ClientAddress, sizeof (EFI_IPv4_ADDRESS));
CopyMem (&Private->SubnetMask, &Dhcp4Mode.SubnetMask, sizeof (EFI_IPv4_ADDRESS));
CopyMem (&Private->GatewayIp, &Dhcp4Mode.RouterAddress, sizeof (EFI_IPv4_ADDRESS));
//
// Check the selected offer to see whether BINL is required, if no or BINL is
// finished, set the various Mode members.
//
Status = PxeBcCheckSelectedOffer (Private);
if (!EFI_ERROR (Status)) {
break;
}
}
if (EFI_ERROR (Status)) {
Dhcp4->Stop (Dhcp4);
Dhcp4->Configure (Dhcp4, NULL);
} else {
//
// Remove the previously configured option list and callback function
//
ZeroMem (&Dhcp4CfgData, sizeof (EFI_DHCP4_CONFIG_DATA));
Dhcp4->Configure (Dhcp4, &Dhcp4CfgData);
Private->AddressIsOk = TRUE;
if (!Mode->UsingIpv6) {
//
// If in IPv4 mode, configure the corresponding ARP with this new
// station IP address.
//
ZeroMem (&ArpConfigData, sizeof (EFI_ARP_CONFIG_DATA));
ArpConfigData.SwAddressType = 0x0800;
ArpConfigData.SwAddressLength = sizeof (EFI_IPv4_ADDRESS);
ArpConfigData.StationAddress = &Private->StationIp.v4;
Private->Arp->Configure (Private->Arp, NULL);
Private->Arp->Configure (Private->Arp, &ArpConfigData);
//
// Updated the route table. Fill the first entry.
//
Mode->RouteTableEntries = 1;
Mode->RouteTable[0].IpAddr.Addr[0] = Private->StationIp.Addr[0] & Private->SubnetMask.Addr[0];
Mode->RouteTable[0].SubnetMask.Addr[0] = Private->SubnetMask.Addr[0];
Mode->RouteTable[0].GwAddr.Addr[0] = 0;
//
// Create the default route entry if there is a default router.
//
if (Private->GatewayIp.Addr[0] != 0) {
Mode->RouteTableEntries = 2;
Mode->RouteTable[1].IpAddr.Addr[0] = 0;
Mode->RouteTable[1].SubnetMask.Addr[0] = 0;
Mode->RouteTable[1].GwAddr.Addr[0] = Private->GatewayIp.Addr[0];
}
}
}
return Status;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param Type GC_NOTO: add argument
description
@param Layer GC_NOTO: add argument
description
@param UseBis GC_NOTO: add argument
description
@param Info GC_NOTO: add argument
description
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_NOT_STARTED GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcDiscover (
IN EFI_PXE_BASE_CODE_PROTOCOL *This,
IN UINT16 Type,
IN UINT16 *Layer,
IN BOOLEAN UseBis,
IN EFI_PXE_BASE_CODE_DISCOVER_INFO *Info OPTIONAL
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_PXE_BASE_CODE_DISCOVER_INFO DefaultInfo;
EFI_PXE_BASE_CODE_SRVLIST *SrvList;
EFI_PXE_BASE_CODE_SRVLIST DefaultSrvList;
PXEBC_CACHED_DHCP4_PACKET *Packet;
PXEBC_VENDOR_OPTION *VendorOpt;
UINT16 Index;
EFI_STATUS Status;
PXEBC_BOOT_SVR_ENTRY *BootSvrEntry;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
BootSvrEntry = NULL;
SrvList = NULL;
Status = EFI_DEVICE_ERROR;
Private->Function = EFI_PXE_BASE_CODE_FUNCTION_DISCOVER;
if (!Private->AddressIsOk) {
return EFI_INVALID_PARAMETER;
}
if (!Mode->Started) {
return EFI_NOT_STARTED;
}
Mode->IcmpErrorReceived = FALSE;
//
// If layer isn't EFI_PXE_BASE_CODE_BOOT_LAYER_INITIAL,
// use the previous setting;
// If info isn't offered,
// use the cached DhcpAck and ProxyOffer packets.
//
if (*Layer != EFI_PXE_BASE_CODE_BOOT_LAYER_INITIAL) {
if (!Mode->PxeDiscoverValid || !Mode->PxeReplyReceived || (!Mode->PxeBisReplyReceived && UseBis)) {
return EFI_INVALID_PARAMETER;
}
DefaultInfo.IpCnt = 1;
DefaultInfo.UseUCast = TRUE;
DefaultSrvList.Type = Type;
DefaultSrvList.AcceptAnyResponse = FALSE;
DefaultSrvList.IpAddr.Addr[0] = Private->ServerIp.Addr[0];
SrvList = &DefaultSrvList;
Info = &DefaultInfo;
} else if (Info == NULL) {
//
// Create info by the cached packet before
//
Packet = (Mode->ProxyOfferReceived) ? &Private->ProxyOffer : &Private->Dhcp4Ack;
VendorOpt = &Packet->PxeVendorOption;
if (!Mode->DhcpAckReceived || !IS_VALID_DISCOVER_VENDOR_OPTION (VendorOpt->BitMap)) {
//
// Address is not acquired or no discovery options.
//
return EFI_INVALID_PARAMETER;
}
DefaultInfo.UseMCast = (BOOLEAN)!IS_DISABLE_MCAST_DISCOVER (VendorOpt->DiscoverCtrl);
DefaultInfo.UseBCast = (BOOLEAN)!IS_DISABLE_BCAST_DISCOVER (VendorOpt->DiscoverCtrl);
DefaultInfo.MustUseList = (BOOLEAN) IS_ENABLE_USE_SERVER_LIST (VendorOpt->DiscoverCtrl);
DefaultInfo.UseUCast = DefaultInfo.MustUseList;
if (DefaultInfo.UseMCast) {
//
// Get the multicast discover ip address from vendor option.
//
CopyMem (&DefaultInfo.ServerMCastIp.Addr, &VendorOpt->DiscoverMcastIp, sizeof (EFI_IPv4_ADDRESS));
}
DefaultInfo.IpCnt = 0;
if (DefaultInfo.MustUseList) {
BootSvrEntry = VendorOpt->BootSvr;
Status = EFI_INVALID_PARAMETER;
while (((UINT8) (BootSvrEntry - VendorOpt->BootSvr)) < VendorOpt->BootSvrLen) {
if (BootSvrEntry->Type == HTONS (Type)) {
Status = EFI_SUCCESS;
break;
}
BootSvrEntry = GET_NEXT_BOOT_SVR_ENTRY (BootSvrEntry);
}
if (EFI_ERROR (Status)) {
return Status;
}
DefaultInfo.IpCnt = BootSvrEntry->IpCnt;
}
Info = &DefaultInfo;
} else {
SrvList = Info->SrvList;
if (!SrvList[0].AcceptAnyResponse) {
for (Index = 1; Index < Info->IpCnt; Index++) {
if (SrvList[Index].AcceptAnyResponse) {
break;
}
}
if (Index != Info->IpCnt) {
return EFI_INVALID_PARAMETER;
}
}
}
if ((!Info->UseUCast && !Info->UseBCast && !Info->UseMCast) || (Info->MustUseList && Info->IpCnt == 0)) {
return EFI_INVALID_PARAMETER;
}
//
// Execute discover by UniCast/BroadCast/MultiCast
//
if (Info->UseUCast) {
for (Index = 0; Index < Info->IpCnt; Index++) {
if (BootSvrEntry == NULL) {
Private->ServerIp.Addr[0] = SrvList[Index].IpAddr.Addr[0];
} else {
CopyMem (&Private->ServerIp, &BootSvrEntry->IpAddr[Index], sizeof (EFI_IPv4_ADDRESS));
}
Status = PxeBcDiscvBootService (
Private,
Type,
Layer,
UseBis,
&SrvList[Index].IpAddr,
0,
NULL,
TRUE,
&Private->PxeReply.Packet.Ack
);
}
} else if (Info->UseMCast) {
Status = PxeBcDiscvBootService (
Private,
Type,
Layer,
UseBis,
&Info->ServerMCastIp,
0,
NULL,
TRUE,
&Private->PxeReply.Packet.Ack
);
} else if (Info->UseBCast) {
Status = PxeBcDiscvBootService (
Private,
Type,
Layer,
UseBis,
NULL,
Info->IpCnt,
SrvList,
TRUE,
&Private->PxeReply.Packet.Ack
);
}
if (EFI_ERROR (Status) || !Mode->PxeReplyReceived || (!Mode->PxeBisReplyReceived && UseBis)) {
if (Status == EFI_ICMP_ERROR) {
Mode->IcmpErrorReceived = TRUE;
} else {
Status = EFI_DEVICE_ERROR;
}
} else {
PxeBcParseCachedDhcpPacket (&Private->PxeReply);
}
if (Mode->PxeBisReplyReceived) {
CopyMem (&Private->ServerIp, &Mode->PxeReply.Dhcpv4.BootpSiAddr, sizeof (EFI_IPv4_ADDRESS));
}
return Status;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param Operation GC_NOTO: add argument
description
@param BufferPtr GC_NOTO: add argument
description
@param Overwrite GC_NOTO: add argument
description
@param BufferSize GC_NOTO: add argument
description
@param BlockSize GC_NOTO: add argument
description
@param ServerIp GC_NOTO: add argument
description
@param Filename GC_NOTO: add argument
description
@param Info GC_NOTO: add argument
description
@param DontUseBuffer GC_NOTO: add argument
description
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcMtftp (
IN EFI_PXE_BASE_CODE_PROTOCOL *This,
IN EFI_PXE_BASE_CODE_TFTP_OPCODE Operation,
IN OUT VOID *BufferPtr,
IN BOOLEAN Overwrite,
IN OUT UINT64 *BufferSize,
IN UINTN *BlockSize OPTIONAL,
IN EFI_IP_ADDRESS *ServerIp,
IN UINT8 *Filename,
IN EFI_PXE_BASE_CODE_MTFTP_INFO *Info OPTIONAL,
IN BOOLEAN DontUseBuffer
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_MTFTP4_CONFIG_DATA Mtftp4Config;
EFI_STATUS Status;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_MAC_ADDRESS TempMacAddr;
if ((This == NULL) ||
(Filename == NULL) ||
(BufferSize == NULL) ||
((ServerIp == NULL) || !Ip4IsUnicast (NTOHL (ServerIp->Addr[0]), 0)) ||
((BufferPtr == NULL) && DontUseBuffer) ||
((BlockSize != NULL) && (*BlockSize < 512))) {
return EFI_INVALID_PARAMETER;
}
Status = EFI_DEVICE_ERROR;
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = &Private->Mode;
if (!Mode->AutoArp) {
//
// If AutoArp is set false, check arp cache
//
UpdateArpCache (This);
if (!FindInArpCache (Mode, &ServerIp->v4, &TempMacAddr)) {
return EFI_DEVICE_ERROR;
}
}
Mode->TftpErrorReceived = FALSE;
Mode->IcmpErrorReceived = FALSE;
Mtftp4Config.UseDefaultSetting = FALSE;
Mtftp4Config.TimeoutValue = PXEBC_MTFTP_TIMEOUT;
Mtftp4Config.TryCount = PXEBC_MTFTP_RETRIES;
CopyMem (&Mtftp4Config.StationIp, &Private->StationIp, sizeof (EFI_IPv4_ADDRESS));
CopyMem (&Mtftp4Config.SubnetMask, &Private->SubnetMask, sizeof (EFI_IPv4_ADDRESS));
CopyMem (&Mtftp4Config.GatewayIp, &Private->GatewayIp, sizeof (EFI_IPv4_ADDRESS));
CopyMem (&Mtftp4Config.ServerIp, ServerIp, sizeof (EFI_IPv4_ADDRESS));
switch (Operation) {
case EFI_PXE_BASE_CODE_TFTP_GET_FILE_SIZE:
Status = PxeBcTftpGetFileSize (
Private,
&Mtftp4Config,
Filename,
BlockSize,
BufferSize
);
if (!EFI_ERROR (Status)) {
Status = EFI_BUFFER_TOO_SMALL;
}
break;
case EFI_PXE_BASE_CODE_TFTP_READ_FILE:
Status = PxeBcTftpReadFile (
Private,
&Mtftp4Config,
Filename,
BlockSize,
BufferPtr,
BufferSize,
DontUseBuffer
);
break;
case EFI_PXE_BASE_CODE_TFTP_WRITE_FILE:
Status = PxeBcTftpWriteFile (
Private,
&Mtftp4Config,
Filename,
Overwrite,
BlockSize,
BufferPtr,
BufferSize
);
break;
case EFI_PXE_BASE_CODE_TFTP_READ_DIRECTORY:
Status = PxeBcTftpReadDirectory (
Private,
&Mtftp4Config,
Filename,
BlockSize,
BufferPtr,
BufferSize,
DontUseBuffer
);
break;
case EFI_PXE_BASE_CODE_MTFTP_GET_FILE_SIZE:
case EFI_PXE_BASE_CODE_MTFTP_READ_FILE:
case EFI_PXE_BASE_CODE_MTFTP_READ_DIRECTORY:
Status = EFI_UNSUPPORTED;
break;
default:
Status = EFI_INVALID_PARAMETER;
break;
}
if (Status == EFI_ICMP_ERROR) {
Mode->IcmpErrorReceived = TRUE;
}
return Status;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param OpFlags GC_NOTO: add argument
description
@param DestIp GC_NOTO: add argument
description
@param DestPort GC_NOTO: add argument
description
@param GatewayIp GC_NOTO: add argument
description
@param SrcIp GC_NOTO: add argument
description
@param SrcPort GC_NOTO: add argument
description
@param HeaderSize GC_NOTO: add argument
description
@param HeaderPtr GC_NOTO: add argument
description
@param BufferSize GC_NOTO: add argument
description
@param BufferPtr GC_NOTO: add argument
description
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_OUT_OF_RESOURCES GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcUdpWrite (
IN EFI_PXE_BASE_CODE_PROTOCOL *This,
IN UINT16 OpFlags,
IN EFI_IP_ADDRESS *DestIp,
IN EFI_PXE_BASE_CODE_UDP_PORT *DestPort,
IN EFI_IP_ADDRESS *GatewayIp OPTIONAL,
IN EFI_IP_ADDRESS *SrcIp OPTIONAL,
IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPort OPTIONAL,
IN UINTN *HeaderSize OPTIONAL,
IN VOID *HeaderPtr OPTIONAL,
IN UINTN *BufferSize,
IN VOID *BufferPtr
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_UDP4_PROTOCOL *Udp4;
EFI_UDP4_COMPLETION_TOKEN Token;
EFI_UDP4_TRANSMIT_DATA *Udp4TxData;
UINT32 FragCount;
UINT32 DataLength;
EFI_UDP4_SESSION_DATA Udp4Session;
EFI_STATUS Status;
BOOLEAN IsDone;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_MAC_ADDRESS TempMacAddr;
IsDone = FALSE;
if ((This == NULL) || (DestIp == NULL) || (DestPort == NULL)) {
return EFI_INVALID_PARAMETER;
}
if ((GatewayIp != NULL) && !Ip4IsUnicast (NTOHL (GatewayIp->Addr[0]), 0)) {
//
// Gateway is provided but it's not a unicast IP address.
//
return EFI_INVALID_PARAMETER;
}
if ((HeaderSize != NULL) && ((*HeaderSize == 0) || (HeaderPtr == NULL))) {
//
// The HeaderSize ptr isn't NULL and: 1. the value is zero; or 2. the HeaderPtr
// is NULL.
//
return EFI_INVALID_PARAMETER;
}
if ((BufferSize == NULL) || ((*BufferSize != 0) && (BufferPtr == NULL))) {
return EFI_INVALID_PARAMETER;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Udp4 = Private->Udp4Write;
Mode = &Private->Mode;
if (!Mode->Started) {
return EFI_NOT_STARTED;
}
if (!Private->AddressIsOk && (SrcIp == NULL)) {
return EFI_INVALID_PARAMETER;
}
if (!Mode->AutoArp) {
//
// If AutoArp is set false, check arp cache
//
UpdateArpCache (This);
if (!FindInArpCache (Mode, &DestIp->v4, &TempMacAddr)) {
return EFI_DEVICE_ERROR;
}
}
Mode->IcmpErrorReceived = FALSE;
if ((Private->CurrentUdpSrcPort == 0) ||
((SrcPort != NULL) && (*SrcPort != Private->CurrentUdpSrcPort))) {
//
// Port is changed, (re)configure the Udp4Write instance
//
if (SrcPort != NULL) {
Private->CurrentUdpSrcPort = *SrcPort;
}
Status = PxeBcConfigureUdpWriteInstance (
Udp4,
&Private->StationIp.v4,
&Private->SubnetMask.v4,
&Private->GatewayIp.v4,
&Private->CurrentUdpSrcPort
);
if (EFI_ERROR (Status)) {
Private->CurrentUdpSrcPort = 0;
return EFI_INVALID_PARAMETER;
}
}
ZeroMem (&Token, sizeof (EFI_UDP4_COMPLETION_TOKEN));
ZeroMem (&Udp4Session, sizeof (EFI_UDP4_SESSION_DATA));
CopyMem (&Udp4Session.DestinationAddress, DestIp, sizeof (EFI_IPv4_ADDRESS));
Udp4Session.DestinationPort = *DestPort;
if (SrcIp != NULL) {
CopyMem (&Udp4Session.SourceAddress, SrcIp, sizeof (EFI_IPv4_ADDRESS));
}
if (SrcPort != NULL) {
Udp4Session.SourcePort = *SrcPort;
}
FragCount = (HeaderSize != NULL) ? 2 : 1;
Udp4TxData = (EFI_UDP4_TRANSMIT_DATA *) AllocatePool (sizeof (EFI_UDP4_TRANSMIT_DATA) + (FragCount - 1) * sizeof (EFI_UDP4_FRAGMENT_DATA));
if (Udp4TxData == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Udp4TxData->FragmentCount = FragCount;
Udp4TxData->FragmentTable[FragCount - 1].FragmentLength = (UINT32) *BufferSize;
Udp4TxData->FragmentTable[FragCount - 1].FragmentBuffer = BufferPtr;
DataLength = (UINT32) *BufferSize;
if (FragCount == 2) {
Udp4TxData->FragmentTable[0].FragmentLength = (UINT32) *HeaderSize;
Udp4TxData->FragmentTable[0].FragmentBuffer = HeaderPtr;
DataLength += (UINT32) *HeaderSize;
}
if (GatewayIp != NULL) {
Udp4TxData->GatewayAddress = (EFI_IPv4_ADDRESS *) GatewayIp;
}
Udp4TxData->UdpSessionData = &Udp4Session;
Udp4TxData->DataLength = DataLength;
Token.Packet.TxData = Udp4TxData;
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
PxeBcCommonNotify,
&IsDone,
&Token.Event
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
Status = Udp4->Transmit (Udp4, &Token);
if (EFI_ERROR (Status)) {
if (Status == EFI_ICMP_ERROR) {
Mode->IcmpErrorReceived = TRUE;
}
goto ON_EXIT;
}
while (!IsDone) {
Udp4->Poll (Udp4);
}
Status = Token.Status;
ON_EXIT:
if (Token.Event != NULL) {
gBS->CloseEvent (Token.Event);
}
gBS->FreePool (Udp4TxData);
return Status;
}
/**
Validate IP packages by IP filter settings
@param PxeBcMode Pointer to EFI_PXEBC_MODE
@param Session Received UDP session
@retval TRUE The UDP package matches IP filters
@retval FLASE The UDP package doesn't matches IP filters
**/
STATIC
BOOLEAN
CheckIpByFilter (
EFI_PXE_BASE_CODE_MODE *PxeBcMode,
EFI_UDP4_SESSION_DATA *Session
)
{
UINTN Index;
EFI_IPv4_ADDRESS Ip4Address;
EFI_IPv4_ADDRESS DestIp4Address;
if (PxeBcMode->IpFilter.Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS) {
return TRUE;
}
CopyMem (&DestIp4Address, &Session->DestinationAddress, sizeof (DestIp4Address));
if ((PxeBcMode->IpFilter.Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS_MULTICAST) &&
IP4_IS_MULTICAST (EFI_NTOHL (DestIp4Address))
) {
return TRUE;
}
if ((PxeBcMode->IpFilter.Filters & EFI_PXE_BASE_CODE_IP_FILTER_BROADCAST) &&
IP4_IS_LOCAL_BROADCAST (EFI_NTOHL (DestIp4Address))
) {
return TRUE;
}
CopyMem (&Ip4Address, &PxeBcMode->StationIp.v4, sizeof (Ip4Address));
if ((PxeBcMode->IpFilter.Filters & EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP) &&
EFI_IP4_EQUAL (&Ip4Address, &DestIp4Address)
) {
return TRUE;
}
for (Index = 0; Index < PxeBcMode->IpFilter.IpCnt; ++Index) {
CopyMem (&Ip4Address, &PxeBcMode->IpFilter.IpList[Index].v4, sizeof (Ip4Address));
if (EFI_IP4_EQUAL (&Ip4Address, &DestIp4Address)) {
return TRUE;
}
}
return FALSE;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param OpFlags GC_NOTO: add argument
description
@param DestIp GC_NOTO: add argument
description
@param DestPort GC_NOTO: add argument
description
@param SrcIp GC_NOTO: add argument
description
@param SrcPort GC_NOTO: add argument
description
@param HeaderSize GC_NOTO: add argument
description
@param HeaderPtr GC_NOTO: add argument
description
@param BufferSize GC_NOTO: add argument
description
@param BufferPtr GC_NOTO: add argument
description
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_NOT_STARTED GC_NOTO: Add description for
return value
@retval EFI_OUT_OF_RESOURCES GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcUdpRead (
IN EFI_PXE_BASE_CODE_PROTOCOL *This,
IN UINT16 OpFlags,
IN OUT EFI_IP_ADDRESS *DestIp, OPTIONAL
IN OUT EFI_PXE_BASE_CODE_UDP_PORT *DestPort, OPTIONAL
IN OUT EFI_IP_ADDRESS *SrcIp, OPTIONAL
IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPort, OPTIONAL
IN UINTN *HeaderSize, OPTIONAL
IN VOID *HeaderPtr, OPTIONAL
IN OUT UINTN *BufferSize,
IN VOID *BufferPtr
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_UDP4_PROTOCOL *Udp4;
EFI_UDP4_COMPLETION_TOKEN Token;
EFI_UDP4_RECEIVE_DATA *RxData;
EFI_UDP4_SESSION_DATA *Session;
EFI_STATUS Status;
BOOLEAN IsDone;
BOOLEAN Matched;
UINTN CopyLen;
if (This == NULL || DestIp == NULL || DestPort == NULL) {
return EFI_INVALID_PARAMETER;
}
if ((!(OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_PORT) && (DestPort == NULL)) ||
(!(OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_PORT) && (SrcIp == NULL)) ||
(!(OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_PORT) && (SrcPort == NULL))) {
return EFI_INVALID_PARAMETER;
}
if (((HeaderSize != NULL) && (*HeaderSize == 0)) || ((HeaderSize != NULL) && (HeaderPtr == NULL))) {
return EFI_INVALID_PARAMETER;
}
if ((BufferSize == NULL) || ((BufferPtr == NULL) && (*BufferSize != 0))) {
return EFI_INVALID_PARAMETER;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
Udp4 = Private->Udp4Read;
if (!Mode->Started) {
return EFI_NOT_STARTED;
}
Mode->IcmpErrorReceived = FALSE;
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
PxeBcCommonNotify,
&IsDone,
&Token.Event
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
TRY_AGAIN:
IsDone = FALSE;
Status = Udp4->Receive (Udp4, &Token);
if (EFI_ERROR (Status)) {
if (Status == EFI_ICMP_ERROR) {
Mode->IcmpErrorReceived = TRUE;
}
goto ON_EXIT;
}
Udp4->Poll (Udp4);
if (!IsDone) {
Status = EFI_TIMEOUT;
} else {
//
// check whether this packet matches the filters
//
if (EFI_ERROR (Token.Status)){
goto ON_EXIT;
}
RxData = Token.Packet.RxData;
Session = &RxData->UdpSession;
Matched = FALSE;
if (OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_USE_FILTER) {
//
// Check UDP package by IP filter settings
//
if (CheckIpByFilter (Mode, Session)) {
Matched = TRUE;
}
}
if (Matched) {
Matched = FALSE;
//
// Match the destination ip of the received udp dgram
//
if (OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP) {
Matched = TRUE;
if (DestIp != NULL) {
CopyMem (DestIp, &Session->DestinationAddress, sizeof (EFI_IPv4_ADDRESS));
}
} else {
if (DestIp != NULL) {
if (EFI_IP4_EQUAL (DestIp, &Session->DestinationAddress)) {
Matched = TRUE;
}
} else {
if (EFI_IP4_EQUAL (&Private->StationIp, &Session->DestinationAddress)) {
Matched = TRUE;
}
}
}
}
if (Matched) {
//
// Match the destination port of the received udp dgram
//
if (OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_PORT) {
if (DestPort != NULL) {
*DestPort = Session->DestinationPort;
}
} else {
if (*DestPort != Session->DestinationPort) {
Matched = FALSE;
}
}
}
if (Matched) {
//
// Match the source ip of the received udp dgram
//
if (OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP) {
if (SrcIp != NULL) {
CopyMem (SrcIp, &Session->SourceAddress, sizeof (EFI_IPv4_ADDRESS));
}
} else {
if (!EFI_IP4_EQUAL (SrcIp, &Session->SourceAddress)) {
Matched = FALSE;
}
}
}
if (Matched) {
//
// Match the source port of the received udp dgram
//
if (OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_PORT) {
if (SrcPort != NULL) {
*SrcPort = Session->SourcePort;
}
} else {
if (*SrcPort != Session->SourcePort) {
Matched = FALSE;
}
}
}
if (Matched) {
CopyLen = 0;
if (HeaderSize != NULL) {
CopyLen = MIN (*HeaderSize, RxData->DataLength);
CopyMem (HeaderPtr, RxData->FragmentTable[0].FragmentBuffer, CopyLen);
*HeaderSize = CopyLen;
}
if (RxData->DataLength - CopyLen > *BufferSize) {
Status = EFI_BUFFER_TOO_SMALL;
} else {
*BufferSize = RxData->DataLength - CopyLen;
CopyMem (BufferPtr, (UINT8 *) RxData->FragmentTable[0].FragmentBuffer + CopyLen, *BufferSize);
}
} else {
Status = EFI_TIMEOUT;
}
//
// Recycle the RxData
//
gBS->SignalEvent (RxData->RecycleSignal);
if (!Matched) {
goto TRY_AGAIN;
}
}
ON_EXIT:
Udp4->Cancel (Udp4, &Token);
gBS->CloseEvent (Token.Event);
return Status;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param NewFilter GC_NOTO: add argument
description
@retval EFI_UNSUPPORTED GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcSetIpFilter (
IN EFI_PXE_BASE_CODE_PROTOCOL *This,
IN EFI_PXE_BASE_CODE_IP_FILTER *NewFilter
)
{
EFI_STATUS Status;
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
UINTN Index;
BOOLEAN PromiscuousNeed;
if (This == NULL) {
DEBUG ((EFI_D_ERROR, "BC *This pointer == NULL.\n"));
return EFI_INVALID_PARAMETER;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
if (Private == NULL) {
DEBUG ((EFI_D_ERROR, "PXEBC_PRIVATE_DATA poiner == NULL.\n"));
return EFI_INVALID_PARAMETER;
}
if (NewFilter == NULL) {
DEBUG ((EFI_D_ERROR, "IP Filter *NewFilter == NULL.\n"));
return EFI_INVALID_PARAMETER;
}
if (!Mode->Started) {
DEBUG ((EFI_D_ERROR, "BC was not started.\n"));
return EFI_NOT_STARTED;
}
PromiscuousNeed = FALSE;
for (Index = 0; Index < NewFilter->IpCnt; ++Index) {
if (IP4_IS_LOCAL_BROADCAST (EFI_IP4 (NewFilter->IpList[Index].v4))) {
//
// The IP is a broadcast address.
//
DEBUG ((EFI_D_ERROR, "There is broadcast address in NewFilter.\n"));
return EFI_INVALID_PARAMETER;
}
if (Ip4IsUnicast (EFI_IP4 (NewFilter->IpList[Index].v4), 0) &&
(NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP)
) {
//
// If EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP is set and IP4 address is in IpList,
// promiscuous mode is needed.
//
PromiscuousNeed = TRUE;
}
}
//
// Clear the UDP instance configuration, all joined groups will be left
// during the operation.
//
Private->Udp4Read->Configure (Private->Udp4Read, NULL);
Private->Udp4CfgData.AcceptPromiscuous = FALSE;
Private->Udp4CfgData.AcceptBroadcast = FALSE;
if (PromiscuousNeed ||
NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS ||
NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS_MULTICAST
) {
//
// Configure the udp4 filter to receive all packages
//
Private->Udp4CfgData.AcceptPromiscuous = TRUE;
//
// Configure the UDP instance with the new configuration.
//
Status = Private->Udp4Read->Configure (Private->Udp4Read, &Private->Udp4CfgData);
if (EFI_ERROR (Status)) {
return Status;
}
} else {
if (NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_BROADCAST) {
//
// Configure the udp4 filter to receive all broadcast packages
//
Private->Udp4CfgData.AcceptBroadcast = TRUE;
}
//
// Configure the UDP instance with the new configuration.
//
Status = Private->Udp4Read->Configure (Private->Udp4Read, &Private->Udp4CfgData);
if (EFI_ERROR (Status)) {
return Status;
}
if (NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP) {
for (Index = 0; Index < NewFilter->IpCnt; ++Index) {
if (IP4_IS_MULTICAST (EFI_NTOHL (NewFilter->IpList[Index].v4))) {
//
// Join the mutilcast group
//
Status = Private->Udp4Read->Groups (Private->Udp4Read, TRUE, &NewFilter->IpList[Index].v4);
if (EFI_ERROR (Status)) {
return Status;
}
}
}
}
}
//
// Save the new filter.
//
CopyMem (&Mode->IpFilter, NewFilter, sizeof (Mode->IpFilter));
return EFI_SUCCESS;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param IpAddr GC_NOTO: add argument
description
@param MacAddr GC_NOTO: add argument
description
@retval EFI_UNSUPPORTED GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcArp (
IN EFI_PXE_BASE_CODE_PROTOCOL * This,
IN EFI_IP_ADDRESS * IpAddr,
IN EFI_MAC_ADDRESS * MacAddr OPTIONAL
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_STATUS Status;
EFI_MAC_ADDRESS TempMacAddr;
if (This == NULL || IpAddr == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
if (!Mode->Started) {
return EFI_NOT_STARTED;
}
if (!Private->AddressIsOk || Mode->UsingIpv6) {
//
// We can't resolve the IP address if we don't have a local address now.
// Don't have ARP for IPv6.
//
return EFI_INVALID_PARAMETER;
}
Mode->IcmpErrorReceived = FALSE;
if (!Mode->AutoArp) {
//
// If AutoArp is set false, check arp cache
//
UpdateArpCache (This);
if (!FindInArpCache (Mode, &IpAddr->v4, &TempMacAddr)) {
return EFI_DEVICE_ERROR;
}
} else {
Status = Private->Arp->Request (Private->Arp, &IpAddr->v4, NULL, &TempMacAddr);
if (EFI_ERROR (Status)) {
if (Status == EFI_ICMP_ERROR) {
Mode->IcmpErrorReceived = TRUE;
}
return Status;
}
}
if (MacAddr != NULL) {
CopyMem (MacAddr, &TempMacAddr, sizeof (EFI_MAC_ADDRESS));
}
return EFI_SUCCESS;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param NewAutoArp GC_NOTO: add argument
description
@param NewSendGUID GC_NOTO: add argument
description
@param NewTTL GC_NOTO: add argument
description
@param NewToS GC_NOTO: add argument
description
@param NewMakeCallback GC_NOTO: add argument
description
@return GC_NOTO: add return values
**/
EFI_STATUS
EFIAPI
EfiPxeBcSetParameters (
IN EFI_PXE_BASE_CODE_PROTOCOL *This,
IN BOOLEAN *NewAutoArp, OPTIONAL
IN BOOLEAN *NewSendGUID, OPTIONAL
IN UINT8 *NewTTL, OPTIONAL
IN UINT8 *NewToS, OPTIONAL
IN BOOLEAN *NewMakeCallback // OPTIONAL
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_STATUS Status;
Status = EFI_SUCCESS;
if (This == NULL) {
Status = EFI_INVALID_PARAMETER;
goto ON_EXIT;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
if (NewSendGUID != NULL && *NewSendGUID == TRUE) {
//
// FixMe, cann't locate SendGuid
//
}
if (NewMakeCallback != NULL && *NewMakeCallback == TRUE) {
Status = gBS->HandleProtocol (
Private->Controller,
&gEfiPxeBaseCodeCallbackProtocolGuid,
(VOID **) &Private->PxeBcCallback
);
if (EFI_ERROR (Status) || (Private->PxeBcCallback->Callback == NULL)) {
Status = EFI_INVALID_PARAMETER;
goto ON_EXIT;
}
}
if (!Mode->Started) {
Status = EFI_NOT_STARTED;
goto ON_EXIT;
}
if (NewMakeCallback != NULL) {
if (*NewMakeCallback) {
//
// Update the Callback protocol.
//
Status = gBS->HandleProtocol (
Private->Controller,
&gEfiPxeBaseCodeCallbackProtocolGuid,
(VOID **) &Private->PxeBcCallback
);
if (EFI_ERROR (Status) || (Private->PxeBcCallback->Callback == NULL)) {
Status = EFI_INVALID_PARAMETER;
goto ON_EXIT;
}
} else {
Private->PxeBcCallback = NULL;
}
Mode->MakeCallbacks = *NewMakeCallback;
}
if (NewAutoArp != NULL) {
Mode->AutoArp = *NewAutoArp;
}
if (NewSendGUID != NULL) {
Mode->SendGUID = *NewSendGUID;
}
if (NewTTL != NULL) {
Mode->TTL = *NewTTL;
}
if (NewToS != NULL) {
Mode->ToS = *NewToS;
}
ON_EXIT:
return Status;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param NewStationIp GC_NOTO: add argument
description
@param NewSubnetMask GC_NOTO: add argument
description
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_NOT_STARTED GC_NOTO: Add description for
return value
@retval EFI_SUCCESS GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcSetStationIP (
IN EFI_PXE_BASE_CODE_PROTOCOL * This,
IN EFI_IP_ADDRESS * NewStationIp, OPTIONAL
IN EFI_IP_ADDRESS * NewSubnetMask OPTIONAL
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_ARP_CONFIG_DATA ArpConfigData;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
if (NewStationIp != NULL && !Ip4IsUnicast (NTOHL (NewStationIp->Addr[0]), 0)) {
return EFI_INVALID_PARAMETER;
}
if (NewSubnetMask != NULL && !IP4_IS_VALID_NETMASK (NTOHL (NewSubnetMask->Addr[0]))) {
return EFI_INVALID_PARAMETER;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
if (!Mode->Started) {
return EFI_NOT_STARTED;
}
if (NewStationIp != NULL) {
Mode->StationIp = *NewStationIp;
Private->StationIp = *NewStationIp;
}
if (NewSubnetMask != NULL) {
Mode->SubnetMask = *NewSubnetMask;
Private->SubnetMask = *NewSubnetMask;
}
Private->AddressIsOk = TRUE;
if (!Mode->UsingIpv6) {
//
// If in IPv4 mode, configure the corresponding ARP with this new
// station IP address.
//
ZeroMem (&ArpConfigData, sizeof (EFI_ARP_CONFIG_DATA));
ArpConfigData.SwAddressType = 0x0800;
ArpConfigData.SwAddressLength = sizeof (EFI_IPv4_ADDRESS);
ArpConfigData.StationAddress = &Private->StationIp.v4;
Private->Arp->Configure (Private->Arp, NULL);
Private->Arp->Configure (Private->Arp, &ArpConfigData);
//
// Update the route table.
//
Mode->RouteTableEntries = 1;
Mode->RouteTable[0].IpAddr.Addr[0] = Private->StationIp.Addr[0] & Private->SubnetMask.Addr[0];
Mode->RouteTable[0].SubnetMask.Addr[0] = Private->SubnetMask.Addr[0];
Mode->RouteTable[0].GwAddr.Addr[0] = 0;
}
return EFI_SUCCESS;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param NewDhcpDiscoverValid GC_NOTO: add argument
description
@param NewDhcpAckReceived GC_NOTO: add argument
description
@param NewProxyOfferReceived GC_NOTO: add argument
description
@param NewPxeDiscoverValid GC_NOTO: add argument
description
@param NewPxeReplyReceived GC_NOTO: add argument
description
@param NewPxeBisReplyReceived GC_NOTO: add argument
description
@param NewDhcpDiscover GC_NOTO: add argument
description
@param NewDhcpAck GC_NOTO: add argument
description
@param NewProxyOffer GC_NOTO: add argument
description
@param NewPxeDiscover GC_NOTO: add argument
description
@param NewPxeReply GC_NOTO: add argument
description
@param NewPxeBisReply GC_NOTO: add argument
description
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_NOT_STARTED GC_NOTO: Add description for
return value
@retval EFI_SUCCESS GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeBcSetPackets (
IN EFI_PXE_BASE_CODE_PROTOCOL * This,
IN BOOLEAN * NewDhcpDiscoverValid, OPTIONAL
IN BOOLEAN * NewDhcpAckReceived, OPTIONAL
IN BOOLEAN * NewProxyOfferReceived, OPTIONAL
IN BOOLEAN * NewPxeDiscoverValid, OPTIONAL
IN BOOLEAN * NewPxeReplyReceived, OPTIONAL
IN BOOLEAN * NewPxeBisReplyReceived, OPTIONAL
IN EFI_PXE_BASE_CODE_PACKET * NewDhcpDiscover, OPTIONAL
IN EFI_PXE_BASE_CODE_PACKET * NewDhcpAck, OPTIONAL
IN EFI_PXE_BASE_CODE_PACKET * NewProxyOffer, OPTIONAL
IN EFI_PXE_BASE_CODE_PACKET * NewPxeDiscover, OPTIONAL
IN EFI_PXE_BASE_CODE_PACKET * NewPxeReply, OPTIONAL
IN EFI_PXE_BASE_CODE_PACKET * NewPxeBisReply OPTIONAL
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_MODE *Mode;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
if (!Mode->Started) {
return EFI_NOT_STARTED;
}
Private->FileSize = 0;
if (NewDhcpDiscoverValid != NULL) {
Mode->DhcpDiscoverValid = *NewDhcpDiscoverValid;
}
if (NewDhcpAckReceived != NULL) {
Mode->DhcpAckReceived = *NewDhcpAckReceived;
}
if (NewProxyOfferReceived != NULL) {
Mode->ProxyOfferReceived = *NewProxyOfferReceived;
}
if (NewPxeDiscoverValid != NULL) {
Mode->PxeDiscoverValid = *NewPxeDiscoverValid;
}
if (NewPxeReplyReceived != NULL) {
Mode->PxeReplyReceived = *NewPxeReplyReceived;
}
if (NewPxeBisReplyReceived != NULL) {
Mode->PxeBisReplyReceived = *NewPxeBisReplyReceived;
}
if (NewDhcpDiscover != NULL) {
CopyMem (&Mode->DhcpDiscover, NewDhcpDiscover, sizeof (EFI_PXE_BASE_CODE_PACKET));
}
if (NewDhcpAck != NULL) {
CopyMem (&Mode->DhcpAck, NewDhcpAck, sizeof (EFI_PXE_BASE_CODE_PACKET));
}
if (NewProxyOffer != NULL) {
CopyMem (&Mode->ProxyOffer, NewProxyOffer, sizeof (EFI_PXE_BASE_CODE_PACKET));
}
if (NewPxeDiscover != NULL) {
CopyMem (&Mode->PxeDiscover, NewPxeDiscover, sizeof (EFI_PXE_BASE_CODE_PACKET));
}
if (NewPxeReply != NULL) {
CopyMem (&Mode->PxeReply, NewPxeReply, sizeof (EFI_PXE_BASE_CODE_PACKET));
}
if (NewPxeBisReply != NULL) {
CopyMem (&Mode->PxeBisReply, NewPxeBisReply, sizeof (EFI_PXE_BASE_CODE_PACKET));
}
return EFI_SUCCESS;
}
EFI_PXE_BASE_CODE_PROTOCOL mPxeBcProtocolTemplate = {
EFI_PXE_BASE_CODE_PROTOCOL_REVISION,
EfiPxeBcStart,
EfiPxeBcStop,
EfiPxeBcDhcp,
EfiPxeBcDiscover,
EfiPxeBcMtftp,
EfiPxeBcUdpWrite,
EfiPxeBcUdpRead,
EfiPxeBcSetIpFilter,
EfiPxeBcArp,
EfiPxeBcSetParameters,
EfiPxeBcSetStationIP,
EfiPxeBcSetPackets,
NULL
};
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param Function GC_NOTO: add argument
description
@param Received GC_NOTO: add argument
description
@param PacketLength GC_NOTO: add argument
description
@param PacketPtr GC_NOTO: add argument
description
@retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_ABORT GC_NOTO: Add description for
return value
@retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE GC_NOTO: Add description for
return value
@retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE GC_NOTO: Add description for
return value
@retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE GC_NOTO: Add description for
return value
@retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE GC_NOTO: Add description for
return value
**/
EFI_PXE_BASE_CODE_CALLBACK_STATUS
EFIAPI
EfiPxeLoadFileCallback (
IN EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL * This,
IN EFI_PXE_BASE_CODE_FUNCTION Function,
IN BOOLEAN Received,
IN UINT32 PacketLength,
IN EFI_PXE_BASE_CODE_PACKET * PacketPtr OPTIONAL
)
{
EFI_INPUT_KEY Key;
EFI_STATUS Status;
//
// Catch Ctrl-C or ESC to abort.
//
Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
if (!EFI_ERROR (Status)) {
if (Key.ScanCode == SCAN_ESC || Key.UnicodeChar == (0x1F & 'c')) {
return EFI_PXE_BASE_CODE_CALLBACK_STATUS_ABORT;
}
}
//
// No print if receive packet
//
if (Received) {
return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;
}
//
// Print only for three functions
//
switch (Function) {
case EFI_PXE_BASE_CODE_FUNCTION_MTFTP:
//
// Print only for open MTFTP packets, not every MTFTP packets
//
if (PacketLength != 0 && PacketPtr != NULL) {
if (PacketPtr->Raw[0x1C] != 0x00 || PacketPtr->Raw[0x1D] != 0x01) {
return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;
}
}
break;
case EFI_PXE_BASE_CODE_FUNCTION_DHCP:
case EFI_PXE_BASE_CODE_FUNCTION_DISCOVER:
break;
default:
return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;
}
if (PacketLength != 0 && PacketPtr != NULL) {
//
// Print '.' when transmit a packet
//
AsciiPrint (".");
}
return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;
}
EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL mPxeBcCallBackTemplate = {
EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL_REVISION,
EfiPxeLoadFileCallback
};
/**
GC_NOTO: Add function description
@param Private GC_NOTO: add argument
description
@param BufferSize GC_NOTO: add argument
description
@param Buffer GC_NOTO: add argument
description
@return GC_NOTO: add return values
**/
EFI_STATUS
DiscoverBootFile (
IN PXEBC_PRIVATE_DATA *Private,
IN OUT UINT64 *BufferSize,
IN VOID *Buffer
)
{
EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;
EFI_PXE_BASE_CODE_MODE *Mode;
EFI_STATUS Status;
UINT16 Type;
UINT16 Layer;
BOOLEAN UseBis;
UINTN BlockSize;
PXEBC_CACHED_DHCP4_PACKET *Packet;
UINT16 Value;
PxeBc = &Private->PxeBc;
Mode = PxeBc->Mode;
Type = EFI_PXE_BASE_CODE_BOOT_TYPE_BOOTSTRAP;
Layer = EFI_PXE_BASE_CODE_BOOT_LAYER_INITIAL;
//
// do DHCP.
//
Status = PxeBc->Dhcp (PxeBc, TRUE);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Select a boot server
//
Status = PxeBcSelectBootPrompt (Private);
if (Status == EFI_SUCCESS) {
Status = PxeBcSelectBootMenu (Private, &Type, TRUE);
} else if (Status == EFI_TIMEOUT) {
Status = PxeBcSelectBootMenu (Private, &Type, FALSE);
}
if (!EFI_ERROR (Status)) {
if (Type == EFI_PXE_BASE_CODE_BOOT_TYPE_BOOTSTRAP) {
//
// Local boot(PXE bootstrap server) need abort
//
return EFI_ABORTED;
}
UseBis = (BOOLEAN) (Mode->BisSupported && Mode->BisDetected);
Status = PxeBc->Discover (PxeBc, Type, &Layer, UseBis, NULL);
if (EFI_ERROR (Status)) {
return Status;
}
}
*BufferSize = 0;
BlockSize = 0x8000;
//
// Get bootfile name and (m)tftp server ip addresss
//
if (Mode->PxeReplyReceived) {
Packet = &Private->PxeReply;
} else if (Mode->ProxyOfferReceived) {
Packet = &Private->ProxyOffer;
} else {
Packet = &Private->Dhcp4Ack;
}
CopyMem (&Private->ServerIp, &Packet->Packet.Offer.Dhcp4.Header.ServerAddr, sizeof (EFI_IPv4_ADDRESS));
if (Private->ServerIp.Addr[0] == 0) {
//
// next server ip address is zero, use option 54 instead
//
CopyMem (
&Private->ServerIp,
Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_SERVER_ID]->Data,
sizeof (EFI_IPv4_ADDRESS)
);
}
ASSERT (Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL);
//
// bootlfile name
//
Private->BootFileName = (CHAR8 *) (Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE]->Data);
if (Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE_LEN] != NULL) {
//
// Already have the bootfile length option, compute the file size
//
CopyMem (&Value, Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE_LEN]->Data, sizeof (Value));
Value = NTOHS (Value);
*BufferSize = 512 * Value;
Status = EFI_BUFFER_TOO_SMALL;
} else {
//
// Get the bootfile size from tftp
//
Status = PxeBc->Mtftp (
PxeBc,
EFI_PXE_BASE_CODE_TFTP_GET_FILE_SIZE,
Buffer,
FALSE,
BufferSize,
&BlockSize,
&Private->ServerIp,
(UINT8 *) Private->BootFileName,
NULL,
FALSE
);
}
Private->FileSize = (UINTN) *BufferSize;
return Status;
}
/**
GC_NOTO: Add function description
@param This GC_NOTO: add argument
description
@param FilePath GC_NOTO: add argument
description
@param BootPolicy GC_NOTO: add argument
description
@param BufferSize GC_NOTO: add argument
description
@param Buffer GC_NOTO: add argument
description
@retval EFI_INVALID_PARAMETER GC_NOTO: Add description for
return value
@retval EFI_UNSUPPORTED GC_NOTO: Add description for
return value
**/
EFI_STATUS
EFIAPI
EfiPxeLoadFile (
IN EFI_LOAD_FILE_PROTOCOL * This,
IN EFI_DEVICE_PATH_PROTOCOL * FilePath,
IN BOOLEAN BootPolicy,
IN OUT UINTN *BufferSize,
IN VOID *Buffer OPTIONAL
)
{
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;
BOOLEAN NewMakeCallback;
UINTN BlockSize;
EFI_STATUS Status;
UINT64 TmpBufSize;
Private = PXEBC_PRIVATE_DATA_FROM_LOADFILE (This);
PxeBc = &Private->PxeBc;
NewMakeCallback = FALSE;
BlockSize = 0x8000;
Status = EFI_DEVICE_ERROR;
if (This == NULL || BufferSize == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// Only support BootPolicy
//
if (!BootPolicy) {
return EFI_UNSUPPORTED;
}
Status = PxeBc->Start (PxeBc, FALSE);
if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {
return Status;
}
Status = gBS->HandleProtocol (
Private->Controller,
&gEfiPxeBaseCodeCallbackProtocolGuid,
(VOID **) &Private->PxeBcCallback
);
if (Status == EFI_UNSUPPORTED) {
CopyMem (&Private->LoadFileCallback, &mPxeBcCallBackTemplate, sizeof (Private->LoadFileCallback));
Status = gBS->InstallProtocolInterface (
&Private->Controller,
&gEfiPxeBaseCodeCallbackProtocolGuid,
EFI_NATIVE_INTERFACE,
&Private->LoadFileCallback
);
NewMakeCallback = (BOOLEAN) (Status == EFI_SUCCESS);
Status = PxeBc->SetParameters (PxeBc, NULL, NULL, NULL, NULL, &NewMakeCallback);
if (EFI_ERROR (Status)) {
PxeBc->Stop (PxeBc);
return Status;
}
}
if (Private->FileSize == 0) {
TmpBufSize = 0;
Status = DiscoverBootFile (Private, &TmpBufSize, Buffer);
if (sizeof (UINTN) < sizeof (UINT64) && (TmpBufSize > 0xFFFFFFFF)) {
Status = EFI_DEVICE_ERROR;
} else {
*BufferSize = (UINTN) TmpBufSize;
}
} else if (Buffer == NULL) {
*BufferSize = Private->FileSize;
Status = EFI_BUFFER_TOO_SMALL;
} else {
//
// Download the file.
//
TmpBufSize = (UINT64) (*BufferSize);
Status = PxeBc->Mtftp (
PxeBc,
EFI_PXE_BASE_CODE_TFTP_READ_FILE,
Buffer,
FALSE,
&TmpBufSize,
&BlockSize,
&Private->ServerIp,
(UINT8 *) Private->BootFileName,
NULL,
FALSE
);
}
//
// If we added a callback protocol, now is the time to remove it.
//
if (NewMakeCallback) {
NewMakeCallback = FALSE;
PxeBc->SetParameters (PxeBc, NULL, NULL, NULL, NULL, &NewMakeCallback);
gBS->UninstallProtocolInterface (
Private->Controller,
&gEfiPxeBaseCodeCallbackProtocolGuid,
&Private->LoadFileCallback
);
}
//
// Check download status
//
switch (Status) {
case EFI_SUCCESS:
return EFI_SUCCESS;
case EFI_BUFFER_TOO_SMALL:
if (Buffer != NULL) {
AsciiPrint ("PXE-E05: Download buffer is smaller than requested file.\n");
} else {
return Status;
}
break;
case EFI_DEVICE_ERROR:
AsciiPrint ("PXE-E07: Network device error.\n");
break;
case EFI_OUT_OF_RESOURCES:
AsciiPrint ("PXE-E09: Could not allocate I/O buffers.\n");
break;
case EFI_NO_MEDIA:
AsciiPrint ("PXE-E12: Could not detect network connection.\n");
break;
case EFI_NO_RESPONSE:
AsciiPrint ("PXE-E16: No offer received.\n");
break;
case EFI_TIMEOUT:
AsciiPrint ("PXE-E18: Server response timeout.\n");
break;
case EFI_ABORTED:
AsciiPrint ("PXE-E21: Remote boot cancelled.\n");
break;
case EFI_ICMP_ERROR:
AsciiPrint ("PXE-E22: Client received ICMP error from server.\n");
break;
case EFI_TFTP_ERROR:
AsciiPrint ("PXE-E23: Client received TFTP error from server.\n");
break;
default:
AsciiPrint ("PXE-E99: Unexpected network error.\n");
break;
}
PxeBc->Stop (PxeBc);
return Status;
}
EFI_LOAD_FILE_PROTOCOL mLoadFileProtocolTemplate = { EfiPxeLoadFile };
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