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Service Attribute SDP requests should have only one Data Element Sequence container around the single service's retrieved attributes, not two.

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This commit is contained in:
Dean Camera 2010-06-01 12:34:48 +00:00
parent 0902ff9651
commit 255d4ef858
1 changed files with 17 additions and 23 deletions
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40
Demos/Host/Incomplete/BluetoothHost/Lib/ServiceDiscoveryProtocol.c
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@ -199,8 +199,7 @@ static void SDP_ProcessServiceAttribute(const SDP_PDUHeader_t* const SDPHeader,
if (MaxAttributeSize > sizeof(ResponsePacket.ResponseData))
MaxAttributeSize = sizeof(ResponsePacket.ResponseData);
/* Add the outer Data Element Sequence header for all of the retrieved Attributes */
uint16_t* TotalResponseSize = SDP_AddDataElementHeader16(&CurrResponsePos, SDP_DATATYPE_Sequence);
uint16_t TotalResponseSize = 0;
/* Search through the global UUID list an item at a time */
for (uint8_t CurrTableItem = 0; CurrTableItem < (sizeof(SDP_Services_Table) / sizeof(ServiceTable_t)); CurrTableItem++)
@ -222,8 +221,8 @@ static void SDP_ProcessServiceAttribute(const SDP_PDUHeader_t* const SDPHeader,
if (ServiceHandle == CurrServiceHandle)
{
/* Add the listed attributes for the found UUID to the response */
*TotalResponseSize += SDP_AddListedAttributesToResponse(CurrAttributeTable, AttributeList, TotalAttributes,
&CurrResponsePos);
TotalResponseSize = SDP_AddListedAttributesToResponse(CurrAttributeTable, AttributeList, TotalAttributes,
&CurrResponsePos);
/* Requested service found, abort the search through the service table */
break;
@ -234,22 +233,17 @@ static void SDP_ProcessServiceAttribute(const SDP_PDUHeader_t* const SDPHeader,
SDP_WriteData8(&CurrResponsePos, 0);
/* Set the total response list size to the size of the outer container plus its header size and continuation state */
ResponsePacket.AttributeListByteCount = SwapEndian_16(3 + *TotalResponseSize);
ResponsePacket.AttributeListByteCount = SwapEndian_16(TotalResponseSize);
/* Calculate the total parameter length that is to be sent, including the fixed return parameters, the created attribute
value list and the SDP continuation state */
uint16_t ParamLength = (sizeof(ResponsePacket.AttributeListByteCount) +
(3 + *TotalResponseSize) +
sizeof(uint8_t));
uint16_t ParamLength = (sizeof(ResponsePacket.AttributeListByteCount) + TotalResponseSize + sizeof(uint8_t));
/* Fill in the response packet's header */
ResponsePacket.SDPHeader.PDU = SDP_PDU_SERVICEATTRIBUTERESPONSE;
ResponsePacket.SDPHeader.TransactionID = SDPHeader->TransactionID;
ResponsePacket.SDPHeader.ParameterLength = SwapEndian_16(ParamLength);
/* Flip the endianness of the container's size */
*TotalResponseSize = SwapEndian_16(*TotalResponseSize);
BT_SDP_DEBUG(1, ">> Service Attribute Response");
BT_SDP_DEBUG(2, "-- Param Len 0x%04X", ParamLength);
@ -327,14 +321,14 @@ static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHe
(3 + *TotalResponseSize) +
sizeof(uint8_t));
/* Flip the endianness of the container's size */
*TotalResponseSize = SwapEndian_16(*TotalResponseSize);
/* Fill in the response packet's header */
ResponsePacket.SDPHeader.PDU = SDP_PDU_SERVICESEARCHATTRIBUTERESPONSE;
ResponsePacket.SDPHeader.TransactionID = SDPHeader->TransactionID;
ResponsePacket.SDPHeader.ParameterLength = SwapEndian_16(ParamLength);
/* Flip the endianness of the container's size */
*TotalResponseSize = SwapEndian_16(*TotalResponseSize);
BT_SDP_DEBUG(1, ">> Service Search Attribute Response");
BT_SDP_DEBUG(2, "-- Param Len 0x%04X", ParamLength);
@ -354,7 +348,7 @@ static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHe
static uint16_t SDP_AddListedAttributesToResponse(const ServiceAttributeTable_t* AttributeTable, uint16_t AttributeList[][2],
const uint8_t TotalAttributes, void** const BufferPos)
{
uint16_t TotalResponseSize = 0;
uint16_t TotalResponseSize;
/* Add an inner Data Element Sequence header for the current services's found Attributes */
uint16_t* AttributeListSize = SDP_AddDataElementHeader16(BufferPos, SDP_DATATYPE_Sequence);
@ -374,19 +368,17 @@ static uint16_t SDP_AddListedAttributesToResponse(const ServiceAttributeTable_t*
/* Check if the current Attribute's ID is within the current Attribute range */
if ((CurrAttributeID >= AttributeIDRange[0]) && (CurrAttributeID <= AttributeIDRange[1]))
{
BT_SDP_DEBUG(2, " -- Add Attribute 0x%04X", CurrAttributeID);
/* Increment the current UUID's returned Attribute container size by the number of added bytes */
*AttributeListSize += SDP_AddAttributeToResponse(CurrAttributeID, AttributeValue, BufferPos);
}
AttributeTable++;
}
/* Increment the outer container size by the number of added bytes */
TotalResponseSize += 3 + *AttributeListSize;
}
/* Record the total number of added bytes to the buffer */
TotalResponseSize = 3 + *AttributeListSize;
/* Fix endianness of the added attribute data element sequence */
*AttributeListSize = SwapEndian_16(*AttributeListSize);
@ -405,8 +397,10 @@ static uint16_t SDP_AddAttributeToResponse(const uint16_t AttributeID, const voi
{
/* Retrieve the size of the attribute value from its container header */
uint8_t AttributeHeaderLength;
uint32_t AttributeValueLength = SDP_GetLocalAttributeContainerSize(AttributeValue, &AttributeHeaderLength);
uint16_t AttributeValueLength = SDP_GetLocalAttributeContainerSize(AttributeValue, &AttributeHeaderLength);
BT_SDP_DEBUG(2, " -- Add Attribute (0x%04X) 0x%04X", (AttributeHeaderLength + AttributeValueLength), AttributeID);
/* Add a Data Element header to the response for the Attribute ID */
SDP_WriteData8(ResponseBuffer, (SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_16Bit));
@ -471,7 +465,7 @@ static ServiceAttributeTable_t* SDP_GetAttributeTable(const uint8_t* const UUID)
/* Retrieve the size of the Class UUID list and skip past the header to the first Class UUID in the list */
uint8_t ClassUUIDListHeaderSize;
uint32_t ClassUUIDListSize = SDP_GetLocalAttributeContainerSize(ClassUUIDs, &ClassUUIDListHeaderSize);
uint16_t ClassUUIDListSize = SDP_GetLocalAttributeContainerSize(ClassUUIDs, &ClassUUIDListHeaderSize);
ClassUUIDs += ClassUUIDListHeaderSize;
/* Check each class UUID in turn for a match */