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audk/NetworkPkg/HttpDxe/HttpsSupport.c

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/** @file
Miscellaneous routines specific to Https for HttpDxe driver.
Copyright (c) 2016 - 2017, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
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.
**/
#include "HttpDriver.h"
/**
Returns the first occurrence of a Null-terminated ASCII sub-string in a Null-terminated
ASCII string and ignore case during the search process.
This function scans the contents of the ASCII string specified by String
and returns the first occurrence of SearchString and ignore case during the search process.
If SearchString is not found in String, then NULL is returned. If the length of SearchString
is zero, then String is returned.
If String is NULL, then ASSERT().
If SearchString is NULL, then ASSERT().
@param[in] String A pointer to a Null-terminated ASCII string.
@param[in] SearchString A pointer to a Null-terminated ASCII string to search for.
@retval NULL If the SearchString does not appear in String.
@retval others If there is a match return the first occurrence of SearchingString.
If the length of SearchString is zero,return String.
**/
CHAR8 *
AsciiStrCaseStr (
IN CONST CHAR8 *String,
IN CONST CHAR8 *SearchString
)
{
CONST CHAR8 *FirstMatch;
CONST CHAR8 *SearchStringTmp;
CHAR8 Src;
CHAR8 Dst;
//
// ASSERT both strings are less long than PcdMaximumAsciiStringLength
//
ASSERT (AsciiStrSize (String) != 0);
ASSERT (AsciiStrSize (SearchString) != 0);
if (*SearchString == '\0') {
return (CHAR8 *) String;
}
while (*String != '\0') {
SearchStringTmp = SearchString;
FirstMatch = String;
while ((*SearchStringTmp != '\0')
&& (*String != '\0')) {
Src = *String;
Dst = *SearchStringTmp;
if ((Src >= 'A') && (Src <= 'Z')) {
Src -= ('A' - 'a');
}
if ((Dst >= 'A') && (Dst <= 'Z')) {
Dst -= ('A' - 'a');
}
if (Src != Dst) {
break;
}
String++;
SearchStringTmp++;
}
if (*SearchStringTmp == '\0') {
return (CHAR8 *) FirstMatch;
}
String = FirstMatch + 1;
}
return NULL;
}
/**
The callback function to free the net buffer list.
@param[in] Arg The opaque parameter.
**/
VOID
EFIAPI
FreeNbufList (
IN VOID *Arg
)
{
ASSERT (Arg != NULL);
NetbufFreeList ((LIST_ENTRY *) Arg);
FreePool (Arg);
}
/**
Check whether the Url is from Https.
@param[in] Url The pointer to a HTTP or HTTPS URL string.
@retval TRUE The Url is from HTTPS.
@retval FALSE The Url is from HTTP.
**/
BOOLEAN
IsHttpsUrl (
IN CHAR8 *Url
)
{
CHAR8 *Tmp;
Tmp = NULL;
Tmp = AsciiStrCaseStr (Url, HTTPS_FLAG);
if (Tmp != NULL && Tmp == Url) {
return TRUE;
}
return FALSE;
}
/**
Creates a Tls child handle, open EFI_TLS_PROTOCOL and EFI_TLS_CONFIGURATION_PROTOCOL.
@param[in] ImageHandle The firmware allocated handle for the UEFI image.
@param[out] TlsProto Pointer to the EFI_TLS_PROTOCOL instance.
@param[out] TlsConfiguration Pointer to the EFI_TLS_CONFIGURATION_PROTOCOL instance.
@return The child handle with opened EFI_TLS_PROTOCOL and EFI_TLS_CONFIGURATION_PROTOCOL.
**/
EFI_HANDLE
EFIAPI
TlsCreateChild (
IN EFI_HANDLE ImageHandle,
OUT EFI_TLS_PROTOCOL **TlsProto,
OUT EFI_TLS_CONFIGURATION_PROTOCOL **TlsConfiguration
)
{
EFI_STATUS Status;
EFI_SERVICE_BINDING_PROTOCOL *TlsSb;
EFI_HANDLE TlsChildHandle;
TlsSb = NULL;
TlsChildHandle = 0;
//
// Locate TlsServiceBinding protocol.
//
gBS->LocateProtocol (
&gEfiTlsServiceBindingProtocolGuid,
NULL,
(VOID **) &TlsSb
);
if (TlsSb == NULL) {
return NULL;
}
Status = TlsSb->CreateChild (TlsSb, &TlsChildHandle);
if (EFI_ERROR (Status)) {
return NULL;
}
Status = gBS->OpenProtocol (
TlsChildHandle,
&gEfiTlsProtocolGuid,
(VOID **) TlsProto,
ImageHandle,
TlsChildHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
TlsSb->DestroyChild (TlsSb, TlsChildHandle);
return NULL;
}
Status = gBS->OpenProtocol (
TlsChildHandle,
&gEfiTlsConfigurationProtocolGuid,
(VOID **) TlsConfiguration,
ImageHandle,
TlsChildHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
TlsSb->DestroyChild (TlsSb, TlsChildHandle);
return NULL;
}
return TlsChildHandle;
}
/**
Create event for the TLS receive and transmit tokens which are used to receive and
transmit TLS related messages.
@param[in, out] HttpInstance Pointer to HTTP_PROTOCOL structure.
@retval EFI_SUCCESS The events are created successfully.
@retval others Other error as indicated.
**/
EFI_STATUS
EFIAPI
TlsCreateTxRxEvent (
IN OUT HTTP_PROTOCOL *HttpInstance
)
{
EFI_STATUS Status;
if (!HttpInstance->LocalAddressIsIPv6) {
//
// For Tcp4TlsTxToken.
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
HttpCommonNotify,
&HttpInstance->TlsIsTxDone,
&HttpInstance->Tcp4TlsTxToken.CompletionToken.Event
);
if (EFI_ERROR (Status)) {
goto ERROR;
}
HttpInstance->Tcp4TlsTxData.Push = TRUE;
HttpInstance->Tcp4TlsTxData.Urgent = FALSE;
HttpInstance->Tcp4TlsTxData.DataLength = 0;
HttpInstance->Tcp4TlsTxData.FragmentCount = 1;
HttpInstance->Tcp4TlsTxData.FragmentTable[0].FragmentLength = HttpInstance->Tcp4TlsTxData.DataLength;
HttpInstance->Tcp4TlsTxData.FragmentTable[0].FragmentBuffer = NULL;
HttpInstance->Tcp4TlsTxToken.Packet.TxData = &HttpInstance->Tcp4TlsTxData;
HttpInstance->Tcp4TlsTxToken.CompletionToken.Status = EFI_NOT_READY;
//
// For Tcp4TlsRxToken.
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
HttpCommonNotify,
&HttpInstance->TlsIsRxDone,
&HttpInstance->Tcp4TlsRxToken.CompletionToken.Event
);
if (EFI_ERROR (Status)) {
goto ERROR;
}
HttpInstance->Tcp4TlsRxData.DataLength = 0;
HttpInstance->Tcp4TlsRxData.FragmentCount = 1;
HttpInstance->Tcp4TlsRxData.FragmentTable[0].FragmentLength = HttpInstance->Tcp4TlsRxData.DataLength ;
HttpInstance->Tcp4TlsRxData.FragmentTable[0].FragmentBuffer = NULL;
HttpInstance->Tcp4TlsRxToken.Packet.RxData = &HttpInstance->Tcp4TlsRxData;
HttpInstance->Tcp4TlsRxToken.CompletionToken.Status = EFI_NOT_READY;
} else {
//
// For Tcp6TlsTxToken.
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
HttpCommonNotify,
&HttpInstance->TlsIsTxDone,
&HttpInstance->Tcp6TlsTxToken.CompletionToken.Event
);
if (EFI_ERROR (Status)) {
goto ERROR;
}
HttpInstance->Tcp6TlsTxData.Push = TRUE;
HttpInstance->Tcp6TlsTxData.Urgent = FALSE;
HttpInstance->Tcp6TlsTxData.DataLength = 0;
HttpInstance->Tcp6TlsTxData.FragmentCount = 1;
HttpInstance->Tcp6TlsTxData.FragmentTable[0].FragmentLength = HttpInstance->Tcp6TlsTxData.DataLength;
HttpInstance->Tcp6TlsTxData.FragmentTable[0].FragmentBuffer = NULL;
HttpInstance->Tcp6TlsTxToken.Packet.TxData = &HttpInstance->Tcp6TlsTxData;
HttpInstance->Tcp6TlsTxToken.CompletionToken.Status = EFI_NOT_READY;
//
// For Tcp6TlsRxToken.
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
HttpCommonNotify,
&HttpInstance->TlsIsRxDone,
&HttpInstance->Tcp6TlsRxToken.CompletionToken.Event
);
if (EFI_ERROR (Status)) {
goto ERROR;
}
HttpInstance->Tcp6TlsRxData.DataLength = 0;
HttpInstance->Tcp6TlsRxData.FragmentCount = 1;
HttpInstance->Tcp6TlsRxData.FragmentTable[0].FragmentLength = HttpInstance->Tcp6TlsRxData.DataLength ;
HttpInstance->Tcp6TlsRxData.FragmentTable[0].FragmentBuffer = NULL;
HttpInstance->Tcp6TlsRxToken.Packet.RxData = &HttpInstance->Tcp6TlsRxData;
HttpInstance->Tcp6TlsRxToken.CompletionToken.Status = EFI_NOT_READY;
}
return Status;
ERROR:
//
// Error handling
//
TlsCloseTxRxEvent (HttpInstance);
return Status;
}
/**
Close events in the TlsTxToken and TlsRxToken.
@param[in] HttpInstance Pointer to HTTP_PROTOCOL structure.
**/
VOID
EFIAPI
TlsCloseTxRxEvent (
IN HTTP_PROTOCOL *HttpInstance
)
{
ASSERT (HttpInstance != NULL);
if (!HttpInstance->LocalAddressIsIPv6) {
if (NULL != HttpInstance->Tcp4TlsTxToken.CompletionToken.Event) {
gBS->CloseEvent(HttpInstance->Tcp4TlsTxToken.CompletionToken.Event);
HttpInstance->Tcp4TlsTxToken.CompletionToken.Event = NULL;
}
if (NULL != HttpInstance->Tcp4TlsRxToken.CompletionToken.Event) {
gBS->CloseEvent (HttpInstance->Tcp4TlsRxToken.CompletionToken.Event);
HttpInstance->Tcp4TlsRxToken.CompletionToken.Event = NULL;
}
} else {
if (NULL != HttpInstance->Tcp6TlsTxToken.CompletionToken.Event) {
gBS->CloseEvent(HttpInstance->Tcp6TlsTxToken.CompletionToken.Event);
HttpInstance->Tcp6TlsTxToken.CompletionToken.Event = NULL;
}
if (NULL != HttpInstance->Tcp6TlsRxToken.CompletionToken.Event) {
gBS->CloseEvent (HttpInstance->Tcp6TlsRxToken.CompletionToken.Event);
HttpInstance->Tcp6TlsRxToken.CompletionToken.Event = NULL;
}
}
}
/**
Read the TlsCaCertificate variable and configure it.
@param[in, out] HttpInstance The HTTP instance private data.
@retval EFI_SUCCESS TlsCaCertificate is configured.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval EFI_NOT_FOUND Fail to get 'TlsCaCertificate' variable.
@retval Others Other error as indicated.
**/
EFI_STATUS
TlsConfigCertificate (
IN OUT HTTP_PROTOCOL *HttpInstance
)
{
EFI_STATUS Status;
UINT8 *CACert;
UINTN CACertSize;
UINT32 Index;
EFI_SIGNATURE_LIST *CertList;
EFI_SIGNATURE_DATA *Cert;
UINTN CertCount;
UINT32 ItemDataSize;
CACert = NULL;
CACertSize = 0;
//
// Try to read the TlsCaCertificate variable.
//
Status = gRT->GetVariable (
EFI_TLS_CA_CERTIFICATE_VARIABLE,
&gEfiTlsCaCertificateGuid,
NULL,
&CACertSize,
NULL
);
if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {
return Status;
}
//
// Allocate buffer and read the config variable.
//
CACert = AllocatePool (CACertSize);
if (CACert == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = gRT->GetVariable (
EFI_TLS_CA_CERTIFICATE_VARIABLE,
&gEfiTlsCaCertificateGuid,
NULL,
&CACertSize,
CACert
);
if (EFI_ERROR (Status)) {
//
// GetVariable still error or the variable is corrupted.
// Fall back to the default value.
//
FreePool (CACert);
return EFI_NOT_FOUND;
}
ASSERT (CACert != NULL);
//
// Enumerate all data and erasing the target item.
//
ItemDataSize = (UINT32) CACertSize;
CertList = (EFI_SIGNATURE_LIST *) CACert;
while ((ItemDataSize > 0) && (ItemDataSize >= CertList->SignatureListSize)) {
Cert = (EFI_SIGNATURE_DATA *) ((UINT8 *) CertList + sizeof (EFI_SIGNATURE_LIST) + CertList->SignatureHeaderSize);
CertCount = (CertList->SignatureListSize - sizeof (EFI_SIGNATURE_LIST) - CertList->SignatureHeaderSize) / CertList->SignatureSize;
for (Index = 0; Index < CertCount; Index++) {
//
// EfiTlsConfigDataTypeCACertificate
//
Status = HttpInstance->TlsConfiguration->SetData (
HttpInstance->TlsConfiguration,
EfiTlsConfigDataTypeCACertificate,
Cert->SignatureData,
CertList->SignatureSize - sizeof (Cert->SignatureOwner)
);
if (EFI_ERROR (Status)) {
FreePool (CACert);
return Status;
}
Cert = (EFI_SIGNATURE_DATA *) ((UINT8 *) Cert + CertList->SignatureSize);
}
ItemDataSize -= CertList->SignatureListSize;
CertList = (EFI_SIGNATURE_LIST *) ((UINT8 *) CertList + CertList->SignatureListSize);
}
FreePool (CACert);
return Status;
}
/**
Configure TLS session data.
@param[in, out] HttpInstance The HTTP instance private data.
@retval EFI_SUCCESS TLS session data is configured.
@retval Others Other error as indicated.
**/
EFI_STATUS
EFIAPI
TlsConfigureSession (
IN OUT HTTP_PROTOCOL *HttpInstance
)
{
EFI_STATUS Status;
//
// TlsConfigData initialization
//
HttpInstance->TlsConfigData.ConnectionEnd = EfiTlsClient;
HttpInstance->TlsConfigData.VerifyMethod = EFI_TLS_VERIFY_PEER;
HttpInstance->TlsConfigData.SessionState = EfiTlsSessionNotStarted;
//
// EfiTlsConnectionEnd,
// EfiTlsVerifyMethod
// EfiTlsSessionState
//
Status = HttpInstance->Tls->SetSessionData (
HttpInstance->Tls,
EfiTlsConnectionEnd,
&(HttpInstance->TlsConfigData.ConnectionEnd),
sizeof (EFI_TLS_CONNECTION_END)
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = HttpInstance->Tls->SetSessionData (
HttpInstance->Tls,
EfiTlsVerifyMethod,
&HttpInstance->TlsConfigData.VerifyMethod,
sizeof (EFI_TLS_VERIFY)
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = HttpInstance->Tls->SetSessionData (
HttpInstance->Tls,
EfiTlsSessionState,
&(HttpInstance->TlsConfigData.SessionState),
sizeof (EFI_TLS_SESSION_STATE)
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Tls Config Certificate
//
Status = TlsConfigCertificate (HttpInstance);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "TLS Certificate Config Error!\n"));
return Status;
}
//
// TlsCreateTxRxEvent
//
Status = TlsCreateTxRxEvent (HttpInstance);
if (EFI_ERROR (Status)) {
goto ERROR;
}
return Status;
ERROR:
TlsCloseTxRxEvent (HttpInstance);
return Status;
}
/**
Transmit the Packet by processing the associated HTTPS token.
@param[in, out] HttpInstance Pointer to HTTP_PROTOCOL structure.
@param[in] Packet The packet to transmit.
@retval EFI_SUCCESS The packet is transmitted.
@retval EFI_INVALID_PARAMETER HttpInstance is NULL or Packet is NULL.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
@retval Others Other errors as indicated.
**/
EFI_STATUS
EFIAPI
TlsCommonTransmit (
IN OUT HTTP_PROTOCOL *HttpInstance,
IN NET_BUF *Packet
)
{
EFI_STATUS Status;
VOID *Data;
UINTN Size;
if ((HttpInstance == NULL) || (Packet == NULL)) {
return EFI_INVALID_PARAMETER;
}
if (!HttpInstance->LocalAddressIsIPv6) {
Size = sizeof (EFI_TCP4_TRANSMIT_DATA) +
(Packet->BlockOpNum - 1) * sizeof (EFI_TCP4_FRAGMENT_DATA);
} else {
Size = sizeof (EFI_TCP6_TRANSMIT_DATA) +
(Packet->BlockOpNum - 1) * sizeof (EFI_TCP6_FRAGMENT_DATA);
}
Data = AllocatePool (Size);
if (Data == NULL) {
return EFI_OUT_OF_RESOURCES;
}
if (!HttpInstance->LocalAddressIsIPv6) {
((EFI_TCP4_TRANSMIT_DATA *) Data)->Push = TRUE;
((EFI_TCP4_TRANSMIT_DATA *) Data)->Urgent = FALSE;
((EFI_TCP4_TRANSMIT_DATA *) Data)->DataLength = Packet->TotalSize;
//
// Build the fragment table.
//
((EFI_TCP4_TRANSMIT_DATA *) Data)->FragmentCount = Packet->BlockOpNum;
NetbufBuildExt (
Packet,
(NET_FRAGMENT *) &((EFI_TCP4_TRANSMIT_DATA *) Data)->FragmentTable[0],
&((EFI_TCP4_TRANSMIT_DATA *) Data)->FragmentCount
);
HttpInstance->Tcp4TlsTxToken.Packet.TxData = (EFI_TCP4_TRANSMIT_DATA *) Data;
Status = EFI_DEVICE_ERROR;
//
// Transmit the packet.
//
Status = HttpInstance->Tcp4->Transmit (HttpInstance->Tcp4, &HttpInstance->Tcp4TlsTxToken);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
while (!HttpInstance->TlsIsTxDone) {
HttpInstance->Tcp4->Poll (HttpInstance->Tcp4);
}
HttpInstance->TlsIsTxDone = FALSE;
Status = HttpInstance->Tcp4TlsTxToken.CompletionToken.Status;
} else {
((EFI_TCP6_TRANSMIT_DATA *) Data)->Push = TRUE;
((EFI_TCP6_TRANSMIT_DATA *) Data)->Urgent = FALSE;
((EFI_TCP6_TRANSMIT_DATA *) Data)->DataLength = Packet->TotalSize;
//
// Build the fragment table.
//
((EFI_TCP6_TRANSMIT_DATA *) Data)->FragmentCount = Packet->BlockOpNum;
NetbufBuildExt (
Packet,
(NET_FRAGMENT *) &((EFI_TCP6_TRANSMIT_DATA *) Data)->FragmentTable[0],
&((EFI_TCP6_TRANSMIT_DATA *) Data)->FragmentCount
);
HttpInstance->Tcp6TlsTxToken.Packet.TxData = (EFI_TCP6_TRANSMIT_DATA *) Data;
Status = EFI_DEVICE_ERROR;
//
// Transmit the packet.
//
Status = HttpInstance->Tcp6->Transmit (HttpInstance->Tcp6, &HttpInstance->Tcp6TlsTxToken);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
while (!HttpInstance->TlsIsTxDone) {
HttpInstance->Tcp6->Poll (HttpInstance->Tcp6);
}
HttpInstance->TlsIsTxDone = FALSE;
Status = HttpInstance->Tcp6TlsTxToken.CompletionToken.Status;
}
ON_EXIT:
FreePool (Data);
return Status;
}
/**
Receive the Packet by processing the associated HTTPS token.
@param[in, out] HttpInstance Pointer to HTTP_PROTOCOL structure.
@param[in] Packet The packet to transmit.
@param[in] Timeout The time to wait for connection done.
@retval EFI_SUCCESS The Packet is received.
@retval EFI_INVALID_PARAMETER HttpInstance is NULL or Packet is NULL.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval EFI_TIMEOUT The operation is time out.
@retval Others Other error as indicated.
**/
EFI_STATUS
EFIAPI
TlsCommonReceive (
IN OUT HTTP_PROTOCOL *HttpInstance,
IN NET_BUF *Packet,
IN EFI_EVENT Timeout
)
{
EFI_TCP4_RECEIVE_DATA *Tcp4RxData;
EFI_TCP6_RECEIVE_DATA *Tcp6RxData;
EFI_STATUS Status;
NET_FRAGMENT *Fragment;
UINT32 FragmentCount;
UINT32 CurrentFragment;
Tcp4RxData = NULL;
Tcp6RxData = NULL;
if ((HttpInstance == NULL) || (Packet == NULL)) {
return EFI_INVALID_PARAMETER;
}
FragmentCount = Packet->BlockOpNum;
Fragment = AllocatePool (FragmentCount * sizeof (NET_FRAGMENT));
if (Fragment == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
//
// Build the fragment table.
//
NetbufBuildExt (Packet, Fragment, &FragmentCount);
if (!HttpInstance->LocalAddressIsIPv6) {
Tcp4RxData = HttpInstance->Tcp4TlsRxToken.Packet.RxData;
if (Tcp4RxData == NULL) {
return EFI_INVALID_PARAMETER;
}
Tcp4RxData->FragmentCount = 1;
} else {
Tcp6RxData = HttpInstance->Tcp6TlsRxToken.Packet.RxData;
if (Tcp6RxData == NULL) {
return EFI_INVALID_PARAMETER;
}
Tcp6RxData->FragmentCount = 1;
}
CurrentFragment = 0;
Status = EFI_SUCCESS;
while (CurrentFragment < FragmentCount) {
if (!HttpInstance->LocalAddressIsIPv6) {
Tcp4RxData->DataLength = Fragment[CurrentFragment].Len;
Tcp4RxData->FragmentTable[0].FragmentLength = Fragment[CurrentFragment].Len;
Tcp4RxData->FragmentTable[0].FragmentBuffer = Fragment[CurrentFragment].Bulk;
Status = HttpInstance->Tcp4->Receive (HttpInstance->Tcp4, &HttpInstance->Tcp4TlsRxToken);
} else {
Tcp6RxData->DataLength = Fragment[CurrentFragment].Len;
Tcp6RxData->FragmentTable[0].FragmentLength = Fragment[CurrentFragment].Len;
Tcp6RxData->FragmentTable[0].FragmentBuffer = Fragment[CurrentFragment].Bulk;
Status = HttpInstance->Tcp6->Receive (HttpInstance->Tcp6, &HttpInstance->Tcp6TlsRxToken);
}
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
while (!HttpInstance->TlsIsRxDone && ((Timeout == NULL) || EFI_ERROR (gBS->CheckEvent (Timeout)))) {
//
// Poll until some data is received or an error occurs.
//
if (!HttpInstance->LocalAddressIsIPv6) {
HttpInstance->Tcp4->Poll (HttpInstance->Tcp4);
} else {
HttpInstance->Tcp6->Poll (HttpInstance->Tcp6);
}
}
if (!HttpInstance->TlsIsRxDone) {
//
// Timeout occurs, cancel the receive request.
//
if (!HttpInstance->LocalAddressIsIPv6) {
HttpInstance->Tcp4->Cancel (HttpInstance->Tcp4, &HttpInstance->Tcp4TlsRxToken.CompletionToken);
} else {
HttpInstance->Tcp6->Cancel (HttpInstance->Tcp6, &HttpInstance->Tcp6TlsRxToken.CompletionToken);
}
Status = EFI_TIMEOUT;
goto ON_EXIT;
} else {
HttpInstance->TlsIsRxDone = FALSE;
}
if (!HttpInstance->LocalAddressIsIPv6) {
Status = HttpInstance->Tcp4TlsRxToken.CompletionToken.Status;
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
Fragment[CurrentFragment].Len -= Tcp4RxData->FragmentTable[0].FragmentLength;
if (Fragment[CurrentFragment].Len == 0) {
CurrentFragment++;
} else {
Fragment[CurrentFragment].Bulk += Tcp4RxData->FragmentTable[0].FragmentLength;
}
} else {
Status = HttpInstance->Tcp6TlsRxToken.CompletionToken.Status;
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
Fragment[CurrentFragment].Len -= Tcp6RxData->FragmentTable[0].FragmentLength;
if (Fragment[CurrentFragment].Len == 0) {
CurrentFragment++;
} else {
Fragment[CurrentFragment].Bulk += Tcp6RxData->FragmentTable[0].FragmentLength;
}
}
}
ON_EXIT:
if (Fragment != NULL) {
FreePool (Fragment);
}
return Status;
}
/**
Receive one TLS PDU. An TLS PDU contains an TLS record header and it's
corresponding record data. These two parts will be put into two blocks of buffers in the
net buffer.
@param[in, out] HttpInstance Pointer to HTTP_PROTOCOL structure.
@param[out] Pdu The received TLS PDU.
@param[in] Timeout The time to wait for connection done.
@retval EFI_SUCCESS An TLS PDU is received.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval EFI_PROTOCOL_ERROR An unexpected TLS packet was received.
@retval Others Other errors as indicated.
**/
EFI_STATUS
EFIAPI
TlsReceiveOnePdu (
IN OUT HTTP_PROTOCOL *HttpInstance,
OUT NET_BUF **Pdu,
IN EFI_EVENT Timeout
)
{
EFI_STATUS Status;
LIST_ENTRY *NbufList;
UINT32 Len;
NET_BUF *PduHdr;
UINT8 *Header;
TLS_RECORD_HEADER RecordHeader;
NET_BUF *DataSeg;
NbufList = NULL;
PduHdr = NULL;
Header = NULL;
DataSeg = NULL;
NbufList = AllocatePool (sizeof (LIST_ENTRY));
if (NbufList == NULL) {
return EFI_OUT_OF_RESOURCES;
}
InitializeListHead (NbufList);
//
// Allocate buffer to receive one TLS header.
//
Len = sizeof (TLS_RECORD_HEADER);
PduHdr = NetbufAlloc (Len);
if (PduHdr == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
Header = NetbufAllocSpace (PduHdr, Len, NET_BUF_TAIL);
if (Header == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
//
// First step, receive one TLS header.
//
Status = TlsCommonReceive (HttpInstance, PduHdr, Timeout);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
RecordHeader = *(TLS_RECORD_HEADER *) Header;
if ((RecordHeader.ContentType == TlsContentTypeHandshake ||
RecordHeader.ContentType == TlsContentTypeAlert ||
RecordHeader.ContentType == TlsContentTypeChangeCipherSpec ||
RecordHeader.ContentType == TlsContentTypeApplicationData) &&
(RecordHeader.Version.Major == 0x03) && /// Major versions are same.
(RecordHeader.Version.Minor == TLS10_PROTOCOL_VERSION_MINOR ||
RecordHeader.Version.Minor ==TLS11_PROTOCOL_VERSION_MINOR ||
RecordHeader.Version.Minor == TLS12_PROTOCOL_VERSION_MINOR)
) {
InsertTailList (NbufList, &PduHdr->List);
} else {
Status = EFI_PROTOCOL_ERROR;
goto ON_EXIT;
}
Len = SwapBytes16(RecordHeader.Length);
if (Len == 0) {
//
// No TLS payload.
//
goto FORM_PDU;
}
//
// Allocate buffer to receive one TLS payload.
//
DataSeg = NetbufAlloc (Len);
if (DataSeg == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
NetbufAllocSpace (DataSeg, Len, NET_BUF_TAIL);
//
// Second step, receive one TLS payload.
//
Status = TlsCommonReceive (HttpInstance, DataSeg, Timeout);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
InsertTailList (NbufList, &DataSeg->List);
FORM_PDU:
//
// Form the PDU from a list of PDU.
//
*Pdu = NetbufFromBufList (NbufList, 0, 0, FreeNbufList, NbufList);
if (*Pdu == NULL) {
Status = EFI_OUT_OF_RESOURCES;
}
ON_EXIT:
if (EFI_ERROR (Status)) {
//
// Free the Nbufs in this NbufList and the NbufList itself.
//
FreeNbufList (NbufList);
}
return Status;
}
/**
Connect one TLS session by finishing the TLS handshake process.
@param[in] HttpInstance The HTTP instance private data.
@param[in] Timeout The time to wait for connection done.
@retval EFI_SUCCESS The TLS session is established.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval EFI_ABORTED TLS session state is incorrect.
@retval Others Other error as indicated.
**/
EFI_STATUS
EFIAPI
TlsConnectSession (
IN HTTP_PROTOCOL *HttpInstance,
IN EFI_EVENT Timeout
)
{
EFI_STATUS Status;
UINT8 *BufferOut;
UINTN BufferOutSize;
NET_BUF *PacketOut;
UINT8 *DataOut;
NET_BUF *Pdu;
UINT8 *BufferIn;
UINTN BufferInSize;
UINT8 *GetSessionDataBuffer;
UINTN GetSessionDataBufferSize;
BufferOut = NULL;
PacketOut = NULL;
DataOut = NULL;
Pdu = NULL;
BufferIn = NULL;
//
// Initialize TLS state.
//
HttpInstance->TlsSessionState = EfiTlsSessionNotStarted;
Status = HttpInstance->Tls->SetSessionData (
HttpInstance->Tls,
EfiTlsSessionState,
&(HttpInstance->TlsSessionState),
sizeof (EFI_TLS_SESSION_STATE)
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Create ClientHello
//
BufferOutSize = DEF_BUF_LEN;
BufferOut = AllocateZeroPool (BufferOutSize);
if (BufferOut == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->BuildResponsePacket (
HttpInstance->Tls,
NULL,
0,
BufferOut,
&BufferOutSize
);
if (Status == EFI_BUFFER_TOO_SMALL) {
FreePool (BufferOut);
BufferOut = AllocateZeroPool (BufferOutSize);
if (BufferOut == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->BuildResponsePacket (
HttpInstance->Tls,
NULL,
0,
BufferOut,
&BufferOutSize
);
}
if (EFI_ERROR (Status)) {
FreePool (BufferOut);
return Status;
}
//
// Transmit ClientHello
//
PacketOut = NetbufAlloc ((UINT32) BufferOutSize);
DataOut = NetbufAllocSpace (PacketOut, (UINT32) BufferOutSize, NET_BUF_TAIL);
if (DataOut == NULL) {
FreePool (BufferOut);
return EFI_OUT_OF_RESOURCES;
}
CopyMem (DataOut, BufferOut, BufferOutSize);
Status = TlsCommonTransmit (HttpInstance, PacketOut);
FreePool (BufferOut);
NetbufFree (PacketOut);
if (EFI_ERROR (Status)) {
return Status;
}
while(HttpInstance->TlsSessionState != EfiTlsSessionDataTransferring && \
((Timeout == NULL) || EFI_ERROR (gBS->CheckEvent (Timeout)))) {
//
// Receive one TLS record.
//
Status = TlsReceiveOnePdu (HttpInstance, &Pdu, Timeout);
if (EFI_ERROR (Status)) {
return Status;
}
BufferInSize = Pdu->TotalSize;
BufferIn = AllocateZeroPool (BufferInSize);
if (BufferIn == NULL) {
NetbufFree (Pdu);
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
NetbufCopy (Pdu, 0, (UINT32)BufferInSize, BufferIn);
NetbufFree (Pdu);
//
// Handle Receive data.
//
BufferOutSize = DEF_BUF_LEN;
BufferOut = AllocateZeroPool (BufferOutSize);
if (BufferOut == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->BuildResponsePacket (
HttpInstance->Tls,
BufferIn,
BufferInSize,
BufferOut,
&BufferOutSize
);
if (Status == EFI_BUFFER_TOO_SMALL) {
FreePool (BufferOut);
BufferOut = AllocateZeroPool (BufferOutSize);
if (BufferOut == NULL) {
FreePool (BufferIn);
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->BuildResponsePacket (
HttpInstance->Tls,
BufferIn,
BufferInSize,
BufferOut,
&BufferOutSize
);
}
FreePool (BufferIn);
if (EFI_ERROR (Status)) {
FreePool (BufferOut);
return Status;
}
if (BufferOutSize != 0) {
//
// Transmit the response packet.
//
PacketOut = NetbufAlloc ((UINT32) BufferOutSize);
DataOut = NetbufAllocSpace (PacketOut, (UINT32) BufferOutSize, NET_BUF_TAIL);
if (DataOut == NULL) {
FreePool (BufferOut);
return EFI_OUT_OF_RESOURCES;
}
CopyMem (DataOut, BufferOut, BufferOutSize);
Status = TlsCommonTransmit (HttpInstance, PacketOut);
NetbufFree (PacketOut);
if (EFI_ERROR (Status)) {
FreePool (BufferOut);
return Status;
}
}
FreePool (BufferOut);
//
// Get the session state, then decide whether need to continue handle received packet.
//
GetSessionDataBufferSize = DEF_BUF_LEN;
GetSessionDataBuffer = AllocateZeroPool (GetSessionDataBufferSize);
if (GetSessionDataBuffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->GetSessionData (
HttpInstance->Tls,
EfiTlsSessionState,
GetSessionDataBuffer,
&GetSessionDataBufferSize
);
if (Status == EFI_BUFFER_TOO_SMALL) {
FreePool (GetSessionDataBuffer);
GetSessionDataBuffer = AllocateZeroPool (GetSessionDataBufferSize);
if (GetSessionDataBuffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->GetSessionData (
HttpInstance->Tls,
EfiTlsSessionState,
GetSessionDataBuffer,
&GetSessionDataBufferSize
);
}
if (EFI_ERROR (Status)) {
FreePool(GetSessionDataBuffer);
return Status;
}
ASSERT(GetSessionDataBufferSize == sizeof (EFI_TLS_SESSION_STATE));
HttpInstance->TlsSessionState = *(EFI_TLS_SESSION_STATE *) GetSessionDataBuffer;
FreePool (GetSessionDataBuffer);
if(HttpInstance->TlsSessionState == EfiTlsSessionError) {
return EFI_ABORTED;
}
}
if (HttpInstance->TlsSessionState != EfiTlsSessionDataTransferring) {
Status = EFI_ABORTED;
}
return Status;
}
/**
Close the TLS session and send out the close notification message.
@param[in] HttpInstance The HTTP instance private data.
@retval EFI_SUCCESS The TLS session is closed.
@retval EFI_INVALID_PARAMETER HttpInstance is NULL.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval Others Other error as indicated.
**/
EFI_STATUS
EFIAPI
TlsCloseSession (
IN HTTP_PROTOCOL *HttpInstance
)
{
EFI_STATUS Status;
UINT8 *BufferOut;
UINTN BufferOutSize;
NET_BUF *PacketOut;
UINT8 *DataOut;
Status = EFI_SUCCESS;
BufferOut = NULL;
PacketOut = NULL;
DataOut = NULL;
if (HttpInstance == NULL) {
return EFI_INVALID_PARAMETER;
}
HttpInstance->TlsSessionState = EfiTlsSessionClosing;
Status = HttpInstance->Tls->SetSessionData (
HttpInstance->Tls,
EfiTlsSessionState,
&(HttpInstance->TlsSessionState),
sizeof (EFI_TLS_SESSION_STATE)
);
if (EFI_ERROR (Status)) {
return Status;
}
BufferOutSize = DEF_BUF_LEN;
BufferOut = AllocateZeroPool (BufferOutSize);
if (BufferOut == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->BuildResponsePacket (
HttpInstance->Tls,
NULL,
0,
BufferOut,
&BufferOutSize
);
if (Status == EFI_BUFFER_TOO_SMALL) {
FreePool (BufferOut);
BufferOut = AllocateZeroPool (BufferOutSize);
if (BufferOut == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->BuildResponsePacket (
HttpInstance->Tls,
NULL,
0,
BufferOut,
&BufferOutSize
);
}
if (EFI_ERROR (Status)) {
FreePool (BufferOut);
return Status;
}
PacketOut = NetbufAlloc ((UINT32) BufferOutSize);
DataOut = NetbufAllocSpace (PacketOut, (UINT32) BufferOutSize, NET_BUF_TAIL);
if (DataOut == NULL) {
FreePool (BufferOut);
return EFI_OUT_OF_RESOURCES;
}
CopyMem (DataOut, BufferOut, BufferOutSize);
Status = TlsCommonTransmit (HttpInstance, PacketOut);
FreePool (BufferOut);
NetbufFree (PacketOut);
return Status;
}
/**
Process one message according to the CryptMode.
@param[in] HttpInstance Pointer to HTTP_PROTOCOL structure.
@param[in] Message Pointer to the message buffer needed to processed.
@param[in] MessageSize Pointer to the message buffer size.
@param[in] ProcessMode Process mode.
@param[in, out] Fragment Only one Fragment returned after the Message is
processed successfully.
@retval EFI_SUCCESS Message is processed successfully.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval Others Other errors as indicated.
**/
EFI_STATUS
EFIAPI
TlsProcessMessage (
IN HTTP_PROTOCOL *HttpInstance,
IN UINT8 *Message,
IN UINTN MessageSize,
IN EFI_TLS_CRYPT_MODE ProcessMode,
IN OUT NET_FRAGMENT *Fragment
)
{
EFI_STATUS Status;
UINT8 *Buffer;
UINT32 BufferSize;
UINT32 BytesCopied;
EFI_TLS_FRAGMENT_DATA *FragmentTable;
UINT32 FragmentCount;
EFI_TLS_FRAGMENT_DATA *OriginalFragmentTable;
UINTN Index;
Status = EFI_SUCCESS;
Buffer = NULL;
BufferSize = 0;
BytesCopied = 0;
FragmentTable = NULL;
OriginalFragmentTable = NULL;
//
// Rebuild fragment table from BufferIn.
//
FragmentCount = 1;
FragmentTable = AllocateZeroPool (FragmentCount * sizeof (EFI_TLS_FRAGMENT_DATA));
if (FragmentTable == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
FragmentTable->FragmentLength = (UINT32) MessageSize;
FragmentTable->FragmentBuffer = Message;
//
// Record the original FragmentTable.
//
OriginalFragmentTable = FragmentTable;
//
// Process the Message.
//
Status = HttpInstance->Tls->ProcessPacket (
HttpInstance->Tls,
&FragmentTable,
&FragmentCount,
ProcessMode
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Calculate the size according to FragmentTable.
//
for (Index = 0; Index < FragmentCount; Index++) {
BufferSize += FragmentTable[Index].FragmentLength;
}
//
// Allocate buffer for processed data.
//
Buffer = AllocateZeroPool (BufferSize);
if (Buffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
//
// Copy the new FragmentTable buffer into Buffer.
//
for (Index = 0; Index < FragmentCount; Index++) {
CopyMem (
(Buffer + BytesCopied),
FragmentTable[Index].FragmentBuffer,
FragmentTable[Index].FragmentLength
);
BytesCopied += FragmentTable[Index].FragmentLength;
//
// Free the FragmentBuffer since it has been copied.
//
FreePool (FragmentTable[Index].FragmentBuffer);
}
Fragment->Len = BufferSize;
Fragment->Bulk = Buffer;
ON_EXIT:
if (OriginalFragmentTable != NULL) {
FreePool (OriginalFragmentTable);
OriginalFragmentTable = NULL;
}
//
// Caller has the responsibility to free the FragmentTable.
//
if (FragmentTable != NULL) {
FreePool (FragmentTable);
FragmentTable = NULL;
}
return Status;
}
/**
Receive one fragment decrypted from one TLS record.
@param[in] HttpInstance Pointer to HTTP_PROTOCOL structure.
@param[in, out] Fragment The received Fragment.
@param[in] Timeout The time to wait for connection done.
@retval EFI_SUCCESS One fragment is received.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval EFI_ABORTED Something wrong decryption the message.
@retval Others Other errors as indicated.
**/
EFI_STATUS
EFIAPI
HttpsReceive (
IN HTTP_PROTOCOL *HttpInstance,
IN OUT NET_FRAGMENT *Fragment,
IN EFI_EVENT Timeout
)
{
EFI_STATUS Status;
NET_BUF *Pdu;
TLS_RECORD_HEADER RecordHeader;
UINT8 *BufferIn;
UINTN BufferInSize;
NET_FRAGMENT TempFragment;
UINT8 *BufferOut;
UINTN BufferOutSize;
NET_BUF *PacketOut;
UINT8 *DataOut;
UINT8 *GetSessionDataBuffer;
UINTN GetSessionDataBufferSize;
Status = EFI_SUCCESS;
Pdu = NULL;
BufferIn = NULL;
BufferInSize = 0;
BufferOut = NULL;
BufferOutSize = 0;
PacketOut = NULL;
DataOut = NULL;
GetSessionDataBuffer = NULL;
GetSessionDataBufferSize = 0;
//
// Receive only one TLS record
//
Status = TlsReceiveOnePdu (HttpInstance, &Pdu, Timeout);
if (EFI_ERROR (Status)) {
return Status;
}
BufferInSize = Pdu->TotalSize;
BufferIn = AllocateZeroPool (BufferInSize);
if (BufferIn == NULL) {
Status = EFI_OUT_OF_RESOURCES;
NetbufFree (Pdu);
return Status;
}
NetbufCopy (Pdu, 0, (UINT32) BufferInSize, BufferIn);
NetbufFree (Pdu);
//
// Handle Receive data.
//
RecordHeader = *(TLS_RECORD_HEADER *) BufferIn;
if ((RecordHeader.ContentType == TlsContentTypeApplicationData) &&
(RecordHeader.Version.Major == 0x03) &&
(RecordHeader.Version.Minor == TLS10_PROTOCOL_VERSION_MINOR ||
RecordHeader.Version.Minor == TLS11_PROTOCOL_VERSION_MINOR ||
RecordHeader.Version.Minor == TLS12_PROTOCOL_VERSION_MINOR)
) {
//
// Decrypt Packet.
//
Status = TlsProcessMessage (
HttpInstance,
BufferIn,
BufferInSize,
EfiTlsDecrypt,
&TempFragment
);
FreePool (BufferIn);
if (EFI_ERROR (Status)) {
if (Status == EFI_ABORTED) {
//
// Something wrong decryption the message.
// BuildResponsePacket() will be called to generate Error Alert message and send it out.
//
BufferOutSize = DEF_BUF_LEN;
BufferOut = AllocateZeroPool (BufferOutSize);
if (BufferOut == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->BuildResponsePacket (
HttpInstance->Tls,
NULL,
0,
BufferOut,
&BufferOutSize
);
if (Status == EFI_BUFFER_TOO_SMALL) {
FreePool (BufferOut);
BufferOut = AllocateZeroPool (BufferOutSize);
if (BufferOut == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->BuildResponsePacket (
HttpInstance->Tls,
NULL,
0,
BufferOut,
&BufferOutSize
);
}
if (EFI_ERROR (Status)) {
FreePool(BufferOut);
return Status;
}
if (BufferOutSize != 0) {
PacketOut = NetbufAlloc ((UINT32)BufferOutSize);
DataOut = NetbufAllocSpace (PacketOut, (UINT32) BufferOutSize, NET_BUF_TAIL);
if (DataOut == NULL) {
FreePool (BufferOut);
return EFI_OUT_OF_RESOURCES;
}
CopyMem (DataOut, BufferOut, BufferOutSize);
Status = TlsCommonTransmit (HttpInstance, PacketOut);
NetbufFree (PacketOut);
}
FreePool(BufferOut);
if (EFI_ERROR (Status)) {
return Status;
}
return EFI_ABORTED;
}
return Status;
}
//
// Parsing buffer.
//
ASSERT (((TLS_RECORD_HEADER *) (TempFragment.Bulk))->ContentType == TlsContentTypeApplicationData);
BufferInSize = ((TLS_RECORD_HEADER *) (TempFragment.Bulk))->Length;
BufferIn = AllocateZeroPool (BufferInSize);
if (BufferIn == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
CopyMem (BufferIn, TempFragment.Bulk + sizeof (TLS_RECORD_HEADER), BufferInSize);
//
// Free the buffer in TempFragment.
//
FreePool (TempFragment.Bulk);
} else if ((RecordHeader.ContentType == TlsContentTypeAlert) &&
(RecordHeader.Version.Major == 0x03) &&
(RecordHeader.Version.Minor == TLS10_PROTOCOL_VERSION_MINOR ||
RecordHeader.Version.Minor == TLS11_PROTOCOL_VERSION_MINOR ||
RecordHeader.Version.Minor == TLS12_PROTOCOL_VERSION_MINOR)
) {
BufferOutSize = DEF_BUF_LEN;
BufferOut = AllocateZeroPool (BufferOutSize);
if (BufferOut == NULL) {
FreePool (BufferIn);
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->BuildResponsePacket (
HttpInstance->Tls,
BufferIn,
BufferInSize,
BufferOut,
&BufferOutSize
);
if (Status == EFI_BUFFER_TOO_SMALL) {
FreePool (BufferOut);
BufferOut = AllocateZeroPool (BufferOutSize);
if (BufferOut == NULL) {
FreePool (BufferIn);
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->BuildResponsePacket (
HttpInstance->Tls,
BufferIn,
BufferInSize,
BufferOut,
&BufferOutSize
);
}
FreePool (BufferIn);
if (EFI_ERROR (Status)) {
FreePool (BufferOut);
return Status;
}
if (BufferOutSize != 0) {
PacketOut = NetbufAlloc ((UINT32) BufferOutSize);
DataOut = NetbufAllocSpace (PacketOut, (UINT32) BufferOutSize, NET_BUF_TAIL);
if (DataOut == NULL) {
FreePool (BufferOut);
return EFI_OUT_OF_RESOURCES;
}
CopyMem (DataOut, BufferOut, BufferOutSize);
Status = TlsCommonTransmit (HttpInstance, PacketOut);
NetbufFree (PacketOut);
}
FreePool (BufferOut);
//
// Get the session state.
//
GetSessionDataBufferSize = DEF_BUF_LEN;
GetSessionDataBuffer = AllocateZeroPool (GetSessionDataBufferSize);
if (GetSessionDataBuffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->GetSessionData (
HttpInstance->Tls,
EfiTlsSessionState,
GetSessionDataBuffer,
&GetSessionDataBufferSize
);
if (Status == EFI_BUFFER_TOO_SMALL) {
FreePool (GetSessionDataBuffer);
GetSessionDataBuffer = AllocateZeroPool (GetSessionDataBufferSize);
if (GetSessionDataBuffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Status = HttpInstance->Tls->GetSessionData (
HttpInstance->Tls,
EfiTlsSessionState,
GetSessionDataBuffer,
&GetSessionDataBufferSize
);
}
if (EFI_ERROR (Status)) {
FreePool (GetSessionDataBuffer);
return Status;
}
ASSERT(GetSessionDataBufferSize == sizeof (EFI_TLS_SESSION_STATE));
HttpInstance->TlsSessionState = *(EFI_TLS_SESSION_STATE *) GetSessionDataBuffer;
FreePool (GetSessionDataBuffer);
if(HttpInstance->TlsSessionState == EfiTlsSessionError) {
DEBUG ((EFI_D_ERROR, "TLS Session State Error!\n"));
return EFI_ABORTED;
}
BufferIn = NULL;
BufferInSize = 0;
}
Fragment->Bulk = BufferIn;
Fragment->Len = (UINT32) BufferInSize;
return Status;
}
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