EFI_STATUS
NtfsAcquireLockOrFail (
VOID
)
/*++
Routine Description:
Lock the volume.
If the lock is already in the acquired state, then EFI_ACCESS_DENIED is returned.
Otherwise, EFI_SUCCESS is returned.
Arguments:
None.
Returns:
EFI_SUCCESS - The volume is locked.
EFI_ACCESS_DENIED - The volume could not be locked because it is already locked.
--*/
{
return EfiAcquireLockOrFail (&NtfsFsLock);
}
EFI_STATUS
fsw_efi_AcquireLockOrFail (
VOID
)
{
return EfiAcquireLockOrFail (&fsw_efi_Lock);
}
VOID
EfiAcquireLock (
IN EFI_LOCK *Lock
)
/*++
Routine Description:
Acquires ownership of the lock.
Arguments:
Lock - The lock to acquire
Returns:
Lock owned
--*/
{
EFI_STATUS Status;
Status = EfiAcquireLockOrFail (Lock);
//
// Lock was already locked.
//
ASSERT_EFI_ERROR (Status);
}
VOID
EfiAcquireLock (
IN EFI_LOCK *Lock
)
/*++
Routine Description:
Raising to the task priority level of the mutual exclusion
lock, and then acquires ownership of the lock.
Arguments:
Lock - The lock to acquire
Returns:
Lock owned
--*/
{
EFI_STATUS Status;
Status = EfiAcquireLockOrFail (Lock);
//
// Lock was already locked.
//
ASSERT_EFI_ERROR (Status);
}
/**
Remove an SMBIOS record.
@param This The EFI_SMBIOS_PROTOCOL instance.
@param SmbiosHandle The handle of the SMBIOS record to remove.
@retval EFI_SUCCESS SMBIOS record was removed.
@retval EFI_INVALID_PARAMETER SmbiosHandle does not specify a valid SMBIOS record.
**/
EFI_STATUS
EFIAPI
SmbiosRemove (
IN CONST EFI_SMBIOS_PROTOCOL *This,
IN EFI_SMBIOS_HANDLE SmbiosHandle
)
{
LIST_ENTRY *Link;
LIST_ENTRY *Head;
EFI_STATUS Status;
EFI_SMBIOS_HANDLE MaxSmbiosHandle;
SMBIOS_INSTANCE *Private;
EFI_SMBIOS_ENTRY *SmbiosEntry;
SMBIOS_HANDLE_ENTRY *HandleEntry;
EFI_SMBIOS_TABLE_HEADER *Record;
//
// Check args validity
//
GetMaxSmbiosHandle(This, &MaxSmbiosHandle);
if (SmbiosHandle > MaxSmbiosHandle) {
return EFI_INVALID_PARAMETER;
}
Private = SMBIOS_INSTANCE_FROM_THIS (This);
//
// Enter into critical section
//
Status = EfiAcquireLockOrFail (&Private->DataLock);
if (EFI_ERROR (Status)) {
return Status;
}
Head = &Private->DataListHead;
for (Link = Head->ForwardLink; Link != Head; Link = Link->ForwardLink) {
SmbiosEntry = SMBIOS_ENTRY_FROM_LINK(Link);
Record = (EFI_SMBIOS_TABLE_HEADER*)(SmbiosEntry->RecordHeader + 1);
if (Record->Handle == SmbiosHandle) {
//
// Remove specified smobios record from DataList
//
RemoveEntryList(Link);
FreePool(SmbiosEntry);
//
// Remove this handle from AllocatedHandleList
//
Head = &Private->AllocatedHandleListHead;
for (Link = Head->ForwardLink; Link != Head; Link = Link->ForwardLink) {
HandleEntry = SMBIOS_HANDLE_ENTRY_FROM_LINK(Link);
if (HandleEntry->SmbiosHandle == SmbiosHandle) {
RemoveEntryList(Link);
FreePool(HandleEntry);
break;
}
}
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
}
//
// Leave critical section
//
EfiReleaseLock (&Private->DataLock);
return EFI_INVALID_PARAMETER;
}
/**
Update the string associated with an existing SMBIOS record.
@param This The EFI_SMBIOS_PROTOCOL instance.
@param SmbiosHandle SMBIOS Handle of structure that will have its string updated.
@param StringNumber The non-zero string number of the string to update
@param String Update the StringNumber string with String.
@retval EFI_SUCCESS SmbiosHandle had its StringNumber String updated.
@retval EFI_INVALID_PARAMETER SmbiosHandle does not exist.
@retval EFI_UNSUPPORTED String was not added since it's longer than 64 significant characters.
@retval EFI_NOT_FOUND The StringNumber.is not valid for this SMBIOS record.
**/
EFI_STATUS
EFIAPI
SmbiosUpdateString (
IN CONST EFI_SMBIOS_PROTOCOL *This,
IN EFI_SMBIOS_HANDLE *SmbiosHandle,
IN UINTN *StringNumber,
IN CHAR8 *String
)
{
UINTN InputStrLen;
UINTN TargetStrLen;
UINTN StrIndex;
UINTN TargetStrOffset;
UINTN NewEntrySize;
CHAR8 *StrStart;
VOID *Raw;
LIST_ENTRY *Link;
LIST_ENTRY *Head;
EFI_STATUS Status;
SMBIOS_INSTANCE *Private;
EFI_SMBIOS_ENTRY *SmbiosEntry;
EFI_SMBIOS_ENTRY *ResizedSmbiosEntry;
EFI_SMBIOS_HANDLE MaxSmbiosHandle;
EFI_SMBIOS_TABLE_HEADER *Record;
EFI_SMBIOS_RECORD_HEADER *InternalRecord;
//
// Check args validity
//
GetMaxSmbiosHandle(This, &MaxSmbiosHandle);
if (*SmbiosHandle > MaxSmbiosHandle) {
return EFI_INVALID_PARAMETER;
}
if (String == NULL) {
return EFI_ABORTED;
}
if (*StringNumber == 0) { //Slice - there should be a way to add a string if not exists
return EFI_NOT_FOUND;
}
InputStrLen = AsciiStrLen(String);
//
// Reference SMBIOS 2.7, chapter 6.1.3, it will have no limit on the length of each individual text string
//
if (This->MajorVersion < 2 || (This->MajorVersion == 2 && This->MinorVersion < 7)) {
if (InputStrLen > SMBIOS_STRING_MAX_LENGTH) {
return EFI_UNSUPPORTED;
}
}
Private = SMBIOS_INSTANCE_FROM_THIS (This);
//
// Enter into critical section
//
Status = EfiAcquireLockOrFail (&Private->DataLock);
if (EFI_ERROR (Status)) {
return Status;
}
Head = &Private->DataListHead;
for (Link = Head->ForwardLink; Link != Head; Link = Link->ForwardLink) {
SmbiosEntry = SMBIOS_ENTRY_FROM_LINK(Link);
Record = (EFI_SMBIOS_TABLE_HEADER*)(SmbiosEntry->RecordHeader + 1);
if (Record->Handle == *SmbiosHandle) {
//
// Find out the specified Smbios record
//
if (*StringNumber > SmbiosEntry->RecordHeader->NumberOfStrings) {
EfiReleaseLock (&Private->DataLock);
return EFI_NOT_FOUND;
}
//
// Point to unformed string section
//
StrStart = (CHAR8 *) Record + Record->Length;
for (StrIndex = 1, TargetStrOffset = 0; StrIndex < *StringNumber; StrStart++, TargetStrOffset++) {
//
// A string ends in 00h
//
if (*StrStart == 0) {
StrIndex++;
}
//
// String section ends in double-null (0000h)
//
if (*StrStart == 0 && *(StrStart + 1) == 0) {
EfiReleaseLock (&Private->DataLock);
return EFI_NOT_FOUND;
}
}
if (*StrStart == 0) {
StrStart++;
TargetStrOffset++;
}
//
// Now we get the string target
//
TargetStrLen = AsciiStrLen(StrStart);
if (InputStrLen == TargetStrLen) {
AsciiStrCpy(StrStart, String);
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
//
// Original string buffer size is not exactly match input string length.
// Re-allocate buffer is needed.
//
NewEntrySize = SmbiosEntry->RecordSize + InputStrLen - TargetStrLen;
ResizedSmbiosEntry = AllocateZeroPool (NewEntrySize);
if (ResizedSmbiosEntry == NULL) {
EfiReleaseLock (&Private->DataLock);
return EFI_OUT_OF_RESOURCES;
}
InternalRecord = (EFI_SMBIOS_RECORD_HEADER *) (ResizedSmbiosEntry + 1);
Raw = (VOID *) (InternalRecord + 1);
//
// Build internal record Header
//
InternalRecord->Version = EFI_SMBIOS_RECORD_HEADER_VERSION;
InternalRecord->HeaderSize = (UINT16) sizeof (EFI_SMBIOS_RECORD_HEADER);
InternalRecord->RecordSize = SmbiosEntry->RecordHeader->RecordSize + InputStrLen - TargetStrLen;
InternalRecord->ProducerHandle = SmbiosEntry->RecordHeader->ProducerHandle;
InternalRecord->NumberOfStrings = SmbiosEntry->RecordHeader->NumberOfStrings;
//
// Copy smbios structure and optional strings.
//
CopyMem (Raw, SmbiosEntry->RecordHeader + 1, Record->Length + TargetStrOffset);
CopyMem ((VOID*)((UINTN)Raw + Record->Length + TargetStrOffset), String, InputStrLen + 1);
CopyMem ((CHAR8*)((UINTN)Raw + Record->Length + TargetStrOffset + InputStrLen + 1),
(CHAR8*)Record + Record->Length + TargetStrOffset + TargetStrLen + 1,
SmbiosEntry->RecordHeader->RecordSize - sizeof (EFI_SMBIOS_RECORD_HEADER) - Record->Length - TargetStrOffset - TargetStrLen - 1);
//
// Insert new record
//
ResizedSmbiosEntry->Signature = EFI_SMBIOS_ENTRY_SIGNATURE;
ResizedSmbiosEntry->RecordHeader = InternalRecord;
ResizedSmbiosEntry->RecordSize = NewEntrySize;
InsertTailList (Link->ForwardLink, &ResizedSmbiosEntry->Link);
//
// Remove old record
//
RemoveEntryList(Link);
FreePool(SmbiosEntry);
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
}
EfiReleaseLock (&Private->DataLock);
return EFI_INVALID_PARAMETER;
}
/**
Add an SMBIOS record.
@param This The EFI_SMBIOS_PROTOCOL instance.
@param ProducerHandle The handle of the controller or driver associated with the SMBIOS information. NULL
means no handle.
@param SmbiosHandle On entry, if non-zero, the handle of the SMBIOS record. If zero, then a unique handle
will be assigned to the SMBIOS record. If the SMBIOS handle is already in use
EFI_ALREADY_STARTED is returned and the SMBIOS record is not updated.
@param Record The data for the fixed portion of the SMBIOS record. The format of the record is
determined by EFI_SMBIOS_TABLE_HEADER.Type. The size of the formatted area is defined
by EFI_SMBIOS_TABLE_HEADER.Length and either followed by a double-null (0x0000) or
a set of null terminated strings and a null.
@retval EFI_SUCCESS Record was added.
@retval EFI_OUT_OF_RESOURCES Record was not added due to lack of system resources.
@retval EFI_ALREADY_STARTED The SmbiosHandle passed in was already in use.
**/
EFI_STATUS
EFIAPI
SmbiosAdd (
IN CONST EFI_SMBIOS_PROTOCOL *This,
IN EFI_HANDLE ProducerHandle, OPTIONAL
IN OUT EFI_SMBIOS_HANDLE *SmbiosHandle,
IN EFI_SMBIOS_TABLE_HEADER *Record
)
{
VOID *Raw;
UINTN TotalSize;
UINTN RecordSize;
UINTN StructureSize;
UINTN NumberOfStrings;
EFI_STATUS Status;
LIST_ENTRY *Head;
SMBIOS_INSTANCE *Private;
EFI_SMBIOS_ENTRY *SmbiosEntry;
EFI_SMBIOS_HANDLE MaxSmbiosHandle;
SMBIOS_HANDLE_ENTRY *HandleEntry;
EFI_SMBIOS_RECORD_HEADER *InternalRecord;
if (SmbiosHandle == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = SMBIOS_INSTANCE_FROM_THIS (This);
//
// Check whether SmbiosHandle is already in use
//
Head = &Private->AllocatedHandleListHead;
if (*SmbiosHandle != 0 && CheckSmbiosHandleExistance(Head, *SmbiosHandle)) {
return EFI_ALREADY_STARTED;
}
//
// when SmbiosHandle is zero, an available handle will be assigned
//
if (*SmbiosHandle == 0) {
Status = GetAvailableSmbiosHandle(This, SmbiosHandle);
if (EFI_ERROR(Status)) {
return Status;
}
} else {
//
// Check this handle validity
//
GetMaxSmbiosHandle(This, &MaxSmbiosHandle);
if (*SmbiosHandle > MaxSmbiosHandle) {
return EFI_INVALID_PARAMETER;
}
}
//
// Calculate record size and string number
//
Status = GetSmbiosStructureSize(This, Record, &StructureSize, &NumberOfStrings);
if (EFI_ERROR(Status)) {
return Status;
}
//
// Enter into critical section
//
Status = EfiAcquireLockOrFail (&Private->DataLock);
if (EFI_ERROR (Status)) {
return Status;
}
RecordSize = sizeof (EFI_SMBIOS_RECORD_HEADER) + StructureSize;
TotalSize = sizeof (EFI_SMBIOS_ENTRY) + RecordSize;
//
// Allocate internal buffer
//
SmbiosEntry = AllocateZeroPool (TotalSize);
if (SmbiosEntry == NULL) {
EfiReleaseLock (&Private->DataLock);
return EFI_OUT_OF_RESOURCES;
}
HandleEntry = AllocateZeroPool (sizeof(SMBIOS_HANDLE_ENTRY));
if (HandleEntry == NULL) {
EfiReleaseLock (&Private->DataLock);
return EFI_OUT_OF_RESOURCES;
}
//
// Build Handle Entry and insert into linked list
//
HandleEntry->Signature = SMBIOS_HANDLE_ENTRY_SIGNATURE;
HandleEntry->SmbiosHandle = *SmbiosHandle;
InsertTailList(&Private->AllocatedHandleListHead, &HandleEntry->Link);
InternalRecord = (EFI_SMBIOS_RECORD_HEADER *) (SmbiosEntry + 1);
Raw = (VOID *) (InternalRecord + 1);
//
// Build internal record Header
//
InternalRecord->Version = EFI_SMBIOS_RECORD_HEADER_VERSION;
InternalRecord->HeaderSize = (UINT16) sizeof (EFI_SMBIOS_RECORD_HEADER);
InternalRecord->RecordSize = RecordSize;
InternalRecord->ProducerHandle = ProducerHandle;
InternalRecord->NumberOfStrings = NumberOfStrings;
//
// Insert record into the internal linked list
//
SmbiosEntry->Signature = EFI_SMBIOS_ENTRY_SIGNATURE;
SmbiosEntry->RecordHeader = InternalRecord;
SmbiosEntry->RecordSize = TotalSize;
InsertTailList (&Private->DataListHead, &SmbiosEntry->Link);
CopyMem (Raw, Record, StructureSize);
((EFI_SMBIOS_TABLE_HEADER*)Raw)->Handle = *SmbiosHandle;
//
// Leave critical section
//
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
/**
Log data record into the data logging hub
@param This Protocol instance structure
@param DataRecordGuid GUID that defines record contents
@param ProducerName GUID that defines the name of the producer of the data
@param DataRecordClass Class that defines generic record type
@param RawData Data Log record as defined by DataRecordGuid
@param RawDataSize Size of Data Log data in bytes
@retval EFI_SUCCESS If data was logged
@retval EFI_OUT_OF_RESOURCES If data was not logged due to lack of system
resources.
**/
EFI_STATUS
EFIAPI
DataHubLogData (
IN EFI_DATA_HUB_PROTOCOL *This,
IN EFI_GUID *DataRecordGuid,
IN EFI_GUID *ProducerName,
IN UINT64 DataRecordClass,
IN VOID *RawData,
IN UINT32 RawDataSize
)
{
EFI_STATUS Status;
DATA_HUB_INSTANCE *Private;
EFI_DATA_ENTRY *LogEntry;
UINT32 TotalSize;
UINT32 RecordSize;
EFI_DATA_RECORD_HEADER *Record;
VOID *Raw;
DATA_HUB_FILTER_DRIVER *FilterEntry;
LIST_ENTRY *Link;
LIST_ENTRY *Head;
EFI_TIME LogTime;
Private = DATA_HUB_INSTANCE_FROM_THIS (This);
//
// Combine the storage for the internal structs and a copy of the log record.
// Record follows PrivateLogEntry. The consumer will be returned a pointer
// to Record so we don't what it to be the thing that was allocated from
// pool, so the consumer can't free an data record by mistake.
//
RecordSize = sizeof (EFI_DATA_RECORD_HEADER) + RawDataSize;
TotalSize = sizeof (EFI_DATA_ENTRY) + RecordSize;
//
// First try to get log time at TPL level <= TPL_CALLBACK.
//
ZeroMem (&LogTime, sizeof (LogTime));
if (EfiGetCurrentTpl() <= TPL_CALLBACK) {
gRT->GetTime (&LogTime, NULL);
}
//
// The Logging action is the critical section, so it is locked.
// The MTC asignment & update and logging must be an
// atomic operation, so use the lock.
//
Status = EfiAcquireLockOrFail (&Private->DataLock);
if (EFI_ERROR (Status)) {
//
// Reentrancy detected so exit!
//
return Status;
}
LogEntry = AllocatePool (TotalSize);
if (LogEntry == NULL) {
EfiReleaseLock (&Private->DataLock);
return EFI_OUT_OF_RESOURCES;
}
ZeroMem (LogEntry, TotalSize);
Record = (EFI_DATA_RECORD_HEADER *) (LogEntry + 1);
Raw = (VOID *) (Record + 1);
//
// Build Standard Log Header
//
Record->Version = EFI_DATA_RECORD_HEADER_VERSION;
Record->HeaderSize = (UINT16) sizeof (EFI_DATA_RECORD_HEADER);
Record->RecordSize = RecordSize;
CopyMem (&Record->DataRecordGuid, DataRecordGuid, sizeof (EFI_GUID));
CopyMem (&Record->ProducerName, ProducerName, sizeof (EFI_GUID));
Record->DataRecordClass = DataRecordClass;
//
// Ensure LogMonotonicCount is not zero
//
Record->LogMonotonicCount = ++Private->GlobalMonotonicCount;
CopyMem (&Record->LogTime, &LogTime, sizeof (LogTime));
//
// Insert log into the internal linked list.
//
LogEntry->Signature = EFI_DATA_ENTRY_SIGNATURE;
LogEntry->Record = Record;
LogEntry->RecordSize = sizeof (EFI_DATA_ENTRY) + RawDataSize;
InsertTailList (&Private->DataListHead, &LogEntry->Link);
CopyMem (Raw, RawData, RawDataSize);
EfiReleaseLock (&Private->DataLock);
//
// Send Signal to all the filter drivers which are interested
// in the record's class and guid.
//
Head = &Private->FilterDriverListHead;
for (Link = GetFirstNode(Head); Link != Head; Link = GetNextNode(Head, Link)) {
FilterEntry = FILTER_ENTRY_FROM_LINK (Link);
if (((FilterEntry->ClassFilter & DataRecordClass) != 0) &&
(CompareGuid (&FilterEntry->FilterDataRecordGuid, &gZeroGuid) ||
CompareGuid (&FilterEntry->FilterDataRecordGuid, DataRecordGuid))) {
gBS->SignalEvent (FilterEntry->Event);
}
}
return EFI_SUCCESS;
}
/**
Remove an SMBIOS record.
@param This The EFI_SMBIOS_PROTOCOL instance.
@param SmbiosHandle The handle of the SMBIOS record to remove.
@retval EFI_SUCCESS SMBIOS record was removed.
@retval EFI_INVALID_PARAMETER SmbiosHandle does not specify a valid SMBIOS record.
**/
EFI_STATUS
EFIAPI
SmbiosRemove (
IN CONST EFI_SMBIOS_PROTOCOL *This,
IN EFI_SMBIOS_HANDLE SmbiosHandle
)
{
LIST_ENTRY *Link;
LIST_ENTRY *Head;
EFI_STATUS Status;
EFI_SMBIOS_HANDLE MaxSmbiosHandle;
SMBIOS_INSTANCE *Private;
EFI_SMBIOS_ENTRY *SmbiosEntry;
SMBIOS_HANDLE_ENTRY *HandleEntry;
EFI_SMBIOS_TABLE_HEADER *Record;
//
// Check args validity
//
GetMaxSmbiosHandle(This, &MaxSmbiosHandle);
if (SmbiosHandle > MaxSmbiosHandle) {
return EFI_INVALID_PARAMETER;
}
Private = SMBIOS_INSTANCE_FROM_THIS (This);
//
// Enter into critical section
//
Status = EfiAcquireLockOrFail (&Private->DataLock);
if (EFI_ERROR (Status)) {
return Status;
}
Head = &Private->DataListHead;
for (Link = Head->ForwardLink; Link != Head; Link = Link->ForwardLink) {
SmbiosEntry = SMBIOS_ENTRY_FROM_LINK(Link);
Record = (EFI_SMBIOS_TABLE_HEADER*)(SmbiosEntry->RecordHeader + 1);
if (Record->Handle == SmbiosHandle) {
//
// Remove specified smobios record from DataList
//
RemoveEntryList(Link);
//
// Remove this handle from AllocatedHandleList
//
Head = &Private->AllocatedHandleListHead;
for (Link = Head->ForwardLink; Link != Head; Link = Link->ForwardLink) {
HandleEntry = SMBIOS_HANDLE_ENTRY_FROM_LINK(Link);
if (HandleEntry->SmbiosHandle == SmbiosHandle) {
RemoveEntryList(Link);
FreePool(HandleEntry);
break;
}
}
//
// Some UEFI drivers (such as network) need some information in SMBIOS table.
// Here we create SMBIOS table and publish it in
// configuration table, so other UEFI drivers can get SMBIOS table from
// configuration table without depending on PI SMBIOS protocol.
//
if (SmbiosEntry->Smbios32BitTable) {
DEBUG ((EFI_D_INFO, "SmbiosRemove: remove from 32-bit table\n"));
}
if (SmbiosEntry->Smbios64BitTable) {
DEBUG ((EFI_D_INFO, "SmbiosRemove: remove from 64-bit table\n"));
}
//
// Update the whole SMBIOS table again based on which table the removed SMBIOS record is in.
//
SmbiosTableConstruction (SmbiosEntry->Smbios32BitTable, SmbiosEntry->Smbios64BitTable);
FreePool(SmbiosEntry);
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
}
//
// Leave critical section
//
EfiReleaseLock (&Private->DataLock);
return EFI_INVALID_PARAMETER;
}
/**
Update the string associated with an existing SMBIOS record.
@param This The EFI_SMBIOS_PROTOCOL instance.
@param SmbiosHandle SMBIOS Handle of structure that will have its string updated.
@param StringNumber The non-zero string number of the string to update
@param String Update the StringNumber string with String.
@retval EFI_SUCCESS SmbiosHandle had its StringNumber String updated.
@retval EFI_INVALID_PARAMETER SmbiosHandle does not exist.
@retval EFI_UNSUPPORTED String was not added because it is longer than the SMBIOS Table supports.
@retval EFI_NOT_FOUND The StringNumber.is not valid for this SMBIOS record.
**/
EFI_STATUS
EFIAPI
SmbiosUpdateString (
IN CONST EFI_SMBIOS_PROTOCOL *This,
IN EFI_SMBIOS_HANDLE *SmbiosHandle,
IN UINTN *StringNumber,
IN CHAR8 *String
)
{
UINTN InputStrLen;
UINTN TargetStrLen;
UINTN StrIndex;
UINTN TargetStrOffset;
UINTN NewEntrySize;
CHAR8 *StrStart;
VOID *Raw;
LIST_ENTRY *Link;
LIST_ENTRY *Head;
EFI_STATUS Status;
SMBIOS_INSTANCE *Private;
EFI_SMBIOS_ENTRY *SmbiosEntry;
EFI_SMBIOS_ENTRY *ResizedSmbiosEntry;
EFI_SMBIOS_HANDLE MaxSmbiosHandle;
EFI_SMBIOS_TABLE_HEADER *Record;
EFI_SMBIOS_RECORD_HEADER *InternalRecord;
//
// Check args validity
//
GetMaxSmbiosHandle(This, &MaxSmbiosHandle);
if (*SmbiosHandle > MaxSmbiosHandle) {
return EFI_INVALID_PARAMETER;
}
if (String == NULL) {
return EFI_ABORTED;
}
if (*StringNumber == 0) {
return EFI_NOT_FOUND;
}
InputStrLen = AsciiStrLen(String);
if (This->MajorVersion < 2 || (This->MajorVersion == 2 && This->MinorVersion < 7)) {
if (InputStrLen > SMBIOS_STRING_MAX_LENGTH) {
return EFI_UNSUPPORTED;
}
} else if (This->MajorVersion < 3) {
//
// Reference SMBIOS 2.7, chapter 6.1.3, it will have no limit on the length of each individual text string.
// However, the length of the entire structure table (including all strings) must be reported
// in the Structure Table Length field of the SMBIOS Structure Table Entry Point,
// which is a WORD field limited to 65,535 bytes.
//
if (InputStrLen > SMBIOS_TABLE_MAX_LENGTH) {
return EFI_UNSUPPORTED;
}
} else {
if (InputStrLen > SMBIOS_3_0_TABLE_MAX_LENGTH) {
//
// SMBIOS 3.0 defines the Structure table maximum size as DWORD field limited to 0xFFFFFFFF bytes.
// The input string length should not exceed 0xFFFFFFFF bytes.
//
return EFI_UNSUPPORTED;
}
}
Private = SMBIOS_INSTANCE_FROM_THIS (This);
//
// Enter into critical section
//
Status = EfiAcquireLockOrFail (&Private->DataLock);
if (EFI_ERROR (Status)) {
return Status;
}
Head = &Private->DataListHead;
for (Link = Head->ForwardLink; Link != Head; Link = Link->ForwardLink) {
SmbiosEntry = SMBIOS_ENTRY_FROM_LINK(Link);
Record = (EFI_SMBIOS_TABLE_HEADER*)(SmbiosEntry->RecordHeader + 1);
if (Record->Handle == *SmbiosHandle) {
//
// Find out the specified SMBIOS record
//
if (*StringNumber > SmbiosEntry->RecordHeader->NumberOfStrings) {
EfiReleaseLock (&Private->DataLock);
return EFI_NOT_FOUND;
}
//
// Point to unformed string section
//
StrStart = (CHAR8 *) Record + Record->Length;
for (StrIndex = 1, TargetStrOffset = 0; StrIndex < *StringNumber; StrStart++, TargetStrOffset++) {
//
// A string ends in 00h
//
if (*StrStart == 0) {
StrIndex++;
}
//
// String section ends in double-null (0000h)
//
if (*StrStart == 0 && *(StrStart + 1) == 0) {
EfiReleaseLock (&Private->DataLock);
return EFI_NOT_FOUND;
}
}
if (*StrStart == 0) {
StrStart++;
TargetStrOffset++;
}
//
// Now we get the string target
//
TargetStrLen = AsciiStrLen(StrStart);
if (InputStrLen == TargetStrLen) {
AsciiStrCpyS(StrStart, TargetStrLen + 1, String);
//
// Some UEFI drivers (such as network) need some information in SMBIOS table.
// Here we create SMBIOS table and publish it in
// configuration table, so other UEFI drivers can get SMBIOS table from
// configuration table without depending on PI SMBIOS protocol.
//
SmbiosTableConstruction (SmbiosEntry->Smbios32BitTable, SmbiosEntry->Smbios64BitTable);
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
SmbiosEntry->Smbios32BitTable = FALSE;
SmbiosEntry->Smbios64BitTable = FALSE;
if ((This->MajorVersion < 0x3) ||
((This->MajorVersion >= 0x3) && ((PcdGet32 (PcdSmbiosEntryPointProvideMethod) & BIT0) == BIT0))) {
//
// 32-bit table is produced, check the valid length.
//
if ((EntryPointStructure != NULL) &&
(EntryPointStructure->TableLength + InputStrLen - TargetStrLen > SMBIOS_TABLE_MAX_LENGTH)) {
//
// The length of the entire structure table (including all strings) must be reported
// in the Structure Table Length field of the SMBIOS Structure Table Entry Point,
// which is a WORD field limited to 65,535 bytes.
//
DEBUG ((EFI_D_INFO, "SmbiosUpdateString: Total length exceeds max 32-bit table length\n"));
} else {
DEBUG ((EFI_D_INFO, "SmbiosUpdateString: New smbios record add to 32-bit table\n"));
SmbiosEntry->Smbios32BitTable = TRUE;
}
}
if ((This->MajorVersion >= 0x3) && ((PcdGet32 (PcdSmbiosEntryPointProvideMethod) & BIT1) == BIT1)) {
//
// 64-bit table is produced, check the valid length.
//
if ((Smbios30EntryPointStructure != NULL) &&
(Smbios30EntryPointStructure->TableMaximumSize + InputStrLen - TargetStrLen > SMBIOS_3_0_TABLE_MAX_LENGTH)) {
DEBUG ((EFI_D_INFO, "SmbiosUpdateString: Total length exceeds max 64-bit table length\n"));
} else {
DEBUG ((EFI_D_INFO, "SmbiosUpdateString: New smbios record add to 64-bit table\n"));
SmbiosEntry->Smbios64BitTable = TRUE;
}
}
if ((!SmbiosEntry->Smbios32BitTable) && (!SmbiosEntry->Smbios64BitTable)) {
EfiReleaseLock (&Private->DataLock);
return EFI_UNSUPPORTED;
}
//
// Original string buffer size is not exactly match input string length.
// Re-allocate buffer is needed.
//
NewEntrySize = SmbiosEntry->RecordSize + InputStrLen - TargetStrLen;
ResizedSmbiosEntry = AllocateZeroPool (NewEntrySize);
if (ResizedSmbiosEntry == NULL) {
EfiReleaseLock (&Private->DataLock);
return EFI_OUT_OF_RESOURCES;
}
InternalRecord = (EFI_SMBIOS_RECORD_HEADER *) (ResizedSmbiosEntry + 1);
Raw = (VOID *) (InternalRecord + 1);
//
// Build internal record Header
//
InternalRecord->Version = EFI_SMBIOS_RECORD_HEADER_VERSION;
InternalRecord->HeaderSize = (UINT16) sizeof (EFI_SMBIOS_RECORD_HEADER);
InternalRecord->RecordSize = SmbiosEntry->RecordHeader->RecordSize + InputStrLen - TargetStrLen;
InternalRecord->ProducerHandle = SmbiosEntry->RecordHeader->ProducerHandle;
InternalRecord->NumberOfStrings = SmbiosEntry->RecordHeader->NumberOfStrings;
//
// Copy SMBIOS structure and optional strings.
//
CopyMem (Raw, SmbiosEntry->RecordHeader + 1, Record->Length + TargetStrOffset);
CopyMem ((VOID*)((UINTN)Raw + Record->Length + TargetStrOffset), String, InputStrLen + 1);
CopyMem ((CHAR8*)((UINTN)Raw + Record->Length + TargetStrOffset + InputStrLen + 1),
(CHAR8*)Record + Record->Length + TargetStrOffset + TargetStrLen + 1,
SmbiosEntry->RecordHeader->RecordSize - sizeof (EFI_SMBIOS_RECORD_HEADER) - Record->Length - TargetStrOffset - TargetStrLen - 1);
//
// Insert new record
//
ResizedSmbiosEntry->Signature = EFI_SMBIOS_ENTRY_SIGNATURE;
ResizedSmbiosEntry->RecordHeader = InternalRecord;
ResizedSmbiosEntry->RecordSize = NewEntrySize;
ResizedSmbiosEntry->Smbios32BitTable = SmbiosEntry->Smbios32BitTable;
ResizedSmbiosEntry->Smbios64BitTable = SmbiosEntry->Smbios64BitTable;
InsertTailList (Link->ForwardLink, &ResizedSmbiosEntry->Link);
//
// Remove old record
//
RemoveEntryList(Link);
FreePool(SmbiosEntry);
//
// Some UEFI drivers (such as network) need some information in SMBIOS table.
// Here we create SMBIOS table and publish it in
// configuration table, so other UEFI drivers can get SMBIOS table from
// configuration table without depending on PI SMBIOS protocol.
//
SmbiosTableConstruction (ResizedSmbiosEntry->Smbios32BitTable, ResizedSmbiosEntry->Smbios64BitTable);
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
}
EfiReleaseLock (&Private->DataLock);
return EFI_INVALID_PARAMETER;
}
/**
Add an SMBIOS record.
@param This The EFI_SMBIOS_PROTOCOL instance.
@param ProducerHandle The handle of the controller or driver associated with the SMBIOS information. NULL
means no handle.
@param SmbiosHandle On entry, the handle of the SMBIOS record to add. If FFFEh, then a unique handle
will be assigned to the SMBIOS record. If the SMBIOS handle is already in use,
EFI_ALREADY_STARTED is returned and the SMBIOS record is not updated.
@param Record The data for the fixed portion of the SMBIOS record. The format of the record is
determined by EFI_SMBIOS_TABLE_HEADER.Type. The size of the formatted area is defined
by EFI_SMBIOS_TABLE_HEADER.Length and either followed by a double-null (0x0000) or
a set of null terminated strings and a null.
@retval EFI_SUCCESS Record was added.
@retval EFI_OUT_OF_RESOURCES Record was not added due to lack of system resources.
@retval EFI_ALREADY_STARTED The SmbiosHandle passed in was already in use.
**/
EFI_STATUS
EFIAPI
SmbiosAdd (
IN CONST EFI_SMBIOS_PROTOCOL *This,
IN EFI_HANDLE ProducerHandle, OPTIONAL
IN OUT EFI_SMBIOS_HANDLE *SmbiosHandle,
IN EFI_SMBIOS_TABLE_HEADER *Record
)
{
VOID *Raw;
UINTN TotalSize;
UINTN RecordSize;
UINTN StructureSize;
UINTN NumberOfStrings;
EFI_STATUS Status;
LIST_ENTRY *Head;
SMBIOS_INSTANCE *Private;
EFI_SMBIOS_ENTRY *SmbiosEntry;
EFI_SMBIOS_HANDLE MaxSmbiosHandle;
SMBIOS_HANDLE_ENTRY *HandleEntry;
EFI_SMBIOS_RECORD_HEADER *InternalRecord;
BOOLEAN Smbios32BitTable;
BOOLEAN Smbios64BitTable;
if (SmbiosHandle == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = SMBIOS_INSTANCE_FROM_THIS (This);
//
// Check whether SmbiosHandle is already in use
//
Head = &Private->AllocatedHandleListHead;
if (*SmbiosHandle != SMBIOS_HANDLE_PI_RESERVED && CheckSmbiosHandleExistance(Head, *SmbiosHandle)) {
return EFI_ALREADY_STARTED;
}
//
// when SmbiosHandle is 0xFFFE, an available handle will be assigned
//
if (*SmbiosHandle == SMBIOS_HANDLE_PI_RESERVED) {
Status = GetAvailableSmbiosHandle(This, SmbiosHandle);
if (EFI_ERROR(Status)) {
return Status;
}
} else {
//
// Check this handle validity
//
GetMaxSmbiosHandle(This, &MaxSmbiosHandle);
if (*SmbiosHandle > MaxSmbiosHandle) {
return EFI_INVALID_PARAMETER;
}
}
//
// Calculate record size and string number
//
Status = GetSmbiosStructureSize(This, Record, &StructureSize, &NumberOfStrings);
if (EFI_ERROR(Status)) {
return Status;
}
Smbios32BitTable = FALSE;
Smbios64BitTable = FALSE;
if ((This->MajorVersion < 0x3) ||
((This->MajorVersion >= 0x3) && ((PcdGet32 (PcdSmbiosEntryPointProvideMethod) & BIT0) == BIT0))) {
//
// For SMBIOS 32-bit table, the length of the entire structure table (including all strings) must be reported
// in the Structure Table Length field of the SMBIOS Structure Table Entry Point,
// which is a WORD field limited to 65,535 bytes. So the max size of 32-bit table should not exceed 65,535 bytes.
//
if ((EntryPointStructure != NULL) &&
(EntryPointStructure->TableLength + StructureSize > SMBIOS_TABLE_MAX_LENGTH)) {
DEBUG ((EFI_D_INFO, "SmbiosAdd: Total length exceeds max 32-bit table length with type = %d size = 0x%x\n", Record->Type, StructureSize));
} else {
Smbios32BitTable = TRUE;
DEBUG ((EFI_D_INFO, "SmbiosAdd: Smbios type %d with size 0x%x is added to 32-bit table\n", Record->Type, StructureSize));
}
}
//
// For SMBIOS 3.0, Structure table maximum size in Entry Point structure is DWORD field limited to 0xFFFFFFFF bytes.
//
if ((This->MajorVersion >= 0x3) && ((PcdGet32 (PcdSmbiosEntryPointProvideMethod) & BIT1) == BIT1)) {
//
// For SMBIOS 64-bit table, Structure table maximum size in SMBIOS 3.0 (64-bit) Entry Point
// is a DWORD field limited to 0xFFFFFFFF bytes. So the max size of 64-bit table should not exceed 0xFFFFFFFF bytes.
//
if ((Smbios30EntryPointStructure != NULL) &&
(Smbios30EntryPointStructure->TableMaximumSize + StructureSize > SMBIOS_3_0_TABLE_MAX_LENGTH)) {
DEBUG ((EFI_D_INFO, "SmbiosAdd: Total length exceeds max 64-bit table length with type = %d size = 0x%x\n", Record->Type, StructureSize));
} else {
DEBUG ((EFI_D_INFO, "SmbiosAdd: Smbios type %d with size 0x%x is added to 64-bit table\n", Record->Type, StructureSize));
Smbios64BitTable = TRUE;
}
}
if ((!Smbios32BitTable) && (!Smbios64BitTable)) {
//
// If both 32-bit and 64-bit table are not updated, quit
//
return EFI_OUT_OF_RESOURCES;
}
//
// Enter into critical section
//
Status = EfiAcquireLockOrFail (&Private->DataLock);
if (EFI_ERROR (Status)) {
return Status;
}
RecordSize = sizeof (EFI_SMBIOS_RECORD_HEADER) + StructureSize;
TotalSize = sizeof (EFI_SMBIOS_ENTRY) + RecordSize;
//
// Allocate internal buffer
//
SmbiosEntry = AllocateZeroPool (TotalSize);
if (SmbiosEntry == NULL) {
EfiReleaseLock (&Private->DataLock);
return EFI_OUT_OF_RESOURCES;
}
HandleEntry = AllocateZeroPool (sizeof(SMBIOS_HANDLE_ENTRY));
if (HandleEntry == NULL) {
EfiReleaseLock (&Private->DataLock);
return EFI_OUT_OF_RESOURCES;
}
//
// Build Handle Entry and insert into linked list
//
HandleEntry->Signature = SMBIOS_HANDLE_ENTRY_SIGNATURE;
HandleEntry->SmbiosHandle = *SmbiosHandle;
InsertTailList(&Private->AllocatedHandleListHead, &HandleEntry->Link);
InternalRecord = (EFI_SMBIOS_RECORD_HEADER *) (SmbiosEntry + 1);
Raw = (VOID *) (InternalRecord + 1);
//
// Build internal record Header
//
InternalRecord->Version = EFI_SMBIOS_RECORD_HEADER_VERSION;
InternalRecord->HeaderSize = (UINT16) sizeof (EFI_SMBIOS_RECORD_HEADER);
InternalRecord->RecordSize = RecordSize;
InternalRecord->ProducerHandle = ProducerHandle;
InternalRecord->NumberOfStrings = NumberOfStrings;
//
// Insert record into the internal linked list
//
SmbiosEntry->Signature = EFI_SMBIOS_ENTRY_SIGNATURE;
SmbiosEntry->RecordHeader = InternalRecord;
SmbiosEntry->RecordSize = TotalSize;
SmbiosEntry->Smbios32BitTable = Smbios32BitTable;
SmbiosEntry->Smbios64BitTable = Smbios64BitTable;
InsertTailList (&Private->DataListHead, &SmbiosEntry->Link);
CopyMem (Raw, Record, StructureSize);
((EFI_SMBIOS_TABLE_HEADER*)Raw)->Handle = *SmbiosHandle;
//
// Some UEFI drivers (such as network) need some information in SMBIOS table.
// Here we create SMBIOS table and publish it in
// configuration table, so other UEFI drivers can get SMBIOS table from
// configuration table without depending on PI SMBIOS protocol.
//
SmbiosTableConstruction (Smbios32BitTable, Smbios64BitTable);
//
// Leave critical section
//
EfiReleaseLock (&Private->DataLock);
return EFI_SUCCESS;
}
Arguments:
(See Tiano Runtime Specification)
Returns:
None
--*/
{
EFI_STATUS Status;
//
// Acquire the lock required to update mStatusCodeFlag
//
Status = EfiAcquireLockOrFail (&mStatusCodeLock);
if (EFI_ERROR (Status)) {
//
// Check for reentrancy of the lock
//
return EFI_DEVICE_ERROR;
}
//
// Check to see if we are already in the middle of a ReportStatusCode()
//
if (mStatusCodeFlag) {
EfiReleaseLock (&mStatusCodeLock);
return EFI_DEVICE_ERROR;
}
//
// Set the flag to show we are in the middle of a ReportStatusCode()