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Fix overflow for RNDIS class driver responses when returning the adapter query list (thanks to Peter Mc Shane).

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This commit is contained in:
Dean Camera 2014-08-31 20:14:48 +10:00
parent 2db71bc8a4
commit 0e68abcd4f
10 changed files with 60 additions and 38 deletions
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46
LUFA/Drivers/USB/Class/Device/RNDISClassDevice.c
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@ -82,7 +82,7 @@ void RNDIS_Device_ProcessControlRequest(USB_ClassInfo_RNDIS_Device_t* const RNDI
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
{
Endpoint_ClearSETUP();
Endpoint_Read_Control_Stream_LE(RNDISInterfaceInfo->State.RNDISMessageBuffer, USB_ControlRequest.wLength);
Endpoint_Read_Control_Stream_LE(RNDISInterfaceInfo->Config.MessageBuffer, USB_ControlRequest.wLength);
Endpoint_ClearIN();
RNDIS_Device_ProcessRNDISControlMessage(RNDISInterfaceInfo);
@ -92,16 +92,16 @@ void RNDIS_Device_ProcessControlRequest(USB_ClassInfo_RNDIS_Device_t* const RNDI
case RNDIS_REQ_GetEncapsulatedResponse:
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
{
RNDIS_Message_Header_t* MessageHeader = (RNDIS_Message_Header_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
RNDIS_Message_Header_t* MessageHeader = (RNDIS_Message_Header_t*)RNDISInterfaceInfo->Config.MessageBuffer;
if (!(MessageHeader->MessageLength))
{
RNDISInterfaceInfo->State.RNDISMessageBuffer[0] = 0;
MessageHeader->MessageLength = CPU_TO_LE32(1);
RNDISInterfaceInfo->Config.MessageBuffer[0] = 0;
MessageHeader->MessageLength = CPU_TO_LE32(1);
}
Endpoint_ClearSETUP();
Endpoint_Write_Control_Stream_LE(RNDISInterfaceInfo->State.RNDISMessageBuffer, le32_to_cpu(MessageHeader->MessageLength));
Endpoint_Write_Control_Stream_LE(RNDISInterfaceInfo->Config.MessageBuffer, le32_to_cpu(MessageHeader->MessageLength));
Endpoint_ClearOUT();
MessageHeader->MessageLength = CPU_TO_LE32(0);
@ -119,6 +119,12 @@ bool RNDIS_Device_ConfigureEndpoints(USB_ClassInfo_RNDIS_Device_t* const RNDISIn
RNDISInterfaceInfo->Config.DataOUTEndpoint.Type = EP_TYPE_BULK;
RNDISInterfaceInfo->Config.NotificationEndpoint.Type = EP_TYPE_INTERRUPT;
if (RNDISInterfaceInfo->Config.MessageBuffer == NULL)
return false;
if (RNDISInterfaceInfo->Config.MessageBufferLength < RNDIS_DEVICE_MIN_MESSAGE_BUFFER_LENGTH)
return false;
if (!(Endpoint_ConfigureEndpointTable(&RNDISInterfaceInfo->Config.DataINEndpoint, 1)))
return false;
@ -162,7 +168,7 @@ void RNDIS_Device_ProcessRNDISControlMessage(USB_ClassInfo_RNDIS_Device_t* const
/* Note: Only a single buffer is used for both the received message and its response to save SRAM. Because of
this, response bytes should be filled in order so that they do not clobber unread data in the buffer. */
RNDIS_Message_Header_t* MessageHeader = (RNDIS_Message_Header_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
RNDIS_Message_Header_t* MessageHeader = (RNDIS_Message_Header_t*)RNDISInterfaceInfo->Config.MessageBuffer;
switch (le32_to_cpu(MessageHeader->MessageType))
{
@ -170,9 +176,9 @@ void RNDIS_Device_ProcessRNDISControlMessage(USB_ClassInfo_RNDIS_Device_t* const
RNDISInterfaceInfo->State.ResponseReady = true;
RNDIS_Initialize_Message_t* INITIALIZE_Message =
(RNDIS_Initialize_Message_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
(RNDIS_Initialize_Message_t*)RNDISInterfaceInfo->Config.MessageBuffer;
RNDIS_Initialize_Complete_t* INITIALIZE_Response =
(RNDIS_Initialize_Complete_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
(RNDIS_Initialize_Complete_t*)RNDISInterfaceInfo->Config.MessageBuffer;
INITIALIZE_Response->MessageType = CPU_TO_LE32(REMOTE_NDIS_INITIALIZE_CMPLT);
INITIALIZE_Response->MessageLength = CPU_TO_LE32(sizeof(RNDIS_Initialize_Complete_t));
@ -201,13 +207,13 @@ void RNDIS_Device_ProcessRNDISControlMessage(USB_ClassInfo_RNDIS_Device_t* const
case REMOTE_NDIS_QUERY_MSG:
RNDISInterfaceInfo->State.ResponseReady = true;
RNDIS_Query_Message_t* QUERY_Message = (RNDIS_Query_Message_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
RNDIS_Query_Complete_t* QUERY_Response = (RNDIS_Query_Complete_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
RNDIS_Query_Message_t* QUERY_Message = (RNDIS_Query_Message_t*)RNDISInterfaceInfo->Config.MessageBuffer;
RNDIS_Query_Complete_t* QUERY_Response = (RNDIS_Query_Complete_t*)RNDISInterfaceInfo->Config.MessageBuffer;
uint32_t Query_Oid = CPU_TO_LE32(QUERY_Message->Oid);
void* QueryData = &RNDISInterfaceInfo->State.RNDISMessageBuffer[sizeof(RNDIS_Message_Header_t) +
le32_to_cpu(QUERY_Message->InformationBufferOffset)];
void* ResponseData = &RNDISInterfaceInfo->State.RNDISMessageBuffer[sizeof(RNDIS_Query_Complete_t)];
void* QueryData = &RNDISInterfaceInfo->Config.MessageBuffer[sizeof(RNDIS_Message_Header_t) +
le32_to_cpu(QUERY_Message->InformationBufferOffset)];
void* ResponseData = &RNDISInterfaceInfo->Config.MessageBuffer[sizeof(RNDIS_Query_Complete_t)];
uint16_t ResponseSize;
QUERY_Response->MessageType = CPU_TO_LE32(REMOTE_NDIS_QUERY_CMPLT);
@ -234,15 +240,15 @@ void RNDIS_Device_ProcessRNDISControlMessage(USB_ClassInfo_RNDIS_Device_t* const
case REMOTE_NDIS_SET_MSG:
RNDISInterfaceInfo->State.ResponseReady = true;
RNDIS_Set_Message_t* SET_Message = (RNDIS_Set_Message_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
RNDIS_Set_Complete_t* SET_Response = (RNDIS_Set_Complete_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
RNDIS_Set_Message_t* SET_Message = (RNDIS_Set_Message_t*)RNDISInterfaceInfo->Config.MessageBuffer;
RNDIS_Set_Complete_t* SET_Response = (RNDIS_Set_Complete_t*)RNDISInterfaceInfo->Config.MessageBuffer;
uint32_t SET_Oid = le32_to_cpu(SET_Message->Oid);
SET_Response->MessageType = CPU_TO_LE32(REMOTE_NDIS_SET_CMPLT);
SET_Response->MessageLength = CPU_TO_LE32(sizeof(RNDIS_Set_Complete_t));
SET_Response->RequestId = SET_Message->RequestId;
void* SetData = &RNDISInterfaceInfo->State.RNDISMessageBuffer[sizeof(RNDIS_Message_Header_t) +
void* SetData = &RNDISInterfaceInfo->Config.MessageBuffer[sizeof(RNDIS_Message_Header_t) +
le32_to_cpu(SET_Message->InformationBufferOffset)];
SET_Response->Status = RNDIS_Device_ProcessNDISSet(RNDISInterfaceInfo, SET_Oid, SetData,
@ -252,7 +258,7 @@ void RNDIS_Device_ProcessRNDISControlMessage(USB_ClassInfo_RNDIS_Device_t* const
case REMOTE_NDIS_RESET_MSG:
RNDISInterfaceInfo->State.ResponseReady = true;
RNDIS_Reset_Complete_t* RESET_Response = (RNDIS_Reset_Complete_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
RNDIS_Reset_Complete_t* RESET_Response = (RNDIS_Reset_Complete_t*)RNDISInterfaceInfo->Config.MessageBuffer;
RESET_Response->MessageType = CPU_TO_LE32(REMOTE_NDIS_RESET_CMPLT);
RESET_Response->MessageLength = CPU_TO_LE32(sizeof(RNDIS_Reset_Complete_t));
@ -264,9 +270,9 @@ void RNDIS_Device_ProcessRNDISControlMessage(USB_ClassInfo_RNDIS_Device_t* const
RNDISInterfaceInfo->State.ResponseReady = true;
RNDIS_KeepAlive_Message_t* KEEPALIVE_Message =
(RNDIS_KeepAlive_Message_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
(RNDIS_KeepAlive_Message_t*)RNDISInterfaceInfo->Config.MessageBuffer;
RNDIS_KeepAlive_Complete_t* KEEPALIVE_Response =
(RNDIS_KeepAlive_Complete_t*)&RNDISInterfaceInfo->State.RNDISMessageBuffer;
(RNDIS_KeepAlive_Complete_t*)RNDISInterfaceInfo->Config.MessageBuffer;
KEEPALIVE_Response->MessageType = CPU_TO_LE32(REMOTE_NDIS_KEEPALIVE_CMPLT);
KEEPALIVE_Response->MessageLength = CPU_TO_LE32(sizeof(RNDIS_KeepAlive_Complete_t));
@ -387,7 +393,7 @@ static bool RNDIS_Device_ProcessNDISQuery(USB_ClassInfo_RNDIS_Device_t* const RN
*ResponseSize = sizeof(uint32_t);
/* Indicate maximum overall buffer (Ethernet frame and RNDIS header) the adapter can handle */
*((uint32_t*)ResponseData) = CPU_TO_LE32(RNDIS_MESSAGE_BUFFER_SIZE + ETHERNET_FRAME_SIZE_MAX);
*((uint32_t*)ResponseData) = CPU_TO_LE32(RNDISInterfaceInfo->Config.MessageBufferLength + ETHERNET_FRAME_SIZE_MAX);
return true;
default: