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Add UUID Class matching to the Service Discovery Protocol code - SDP is now correctly matched against the generic Service Discovery Class UUID.

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pull/1469/head
Dean Camera 15 years ago
parent 776485a6c5
commit 8f3d4e69c3
4 changed files with 76 additions and 60 deletions
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1
Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothACLPackets.c
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@ -489,7 +489,6 @@ static inline void Bluetooth_Signal_ConfigurationReq(const BT_Signal_Header_t* c
BT_ACL_DEBUG(1, "<< L2CAP Configuration Request");
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", ConfigurationRequest.DestinationChannel);
BT_ACL_DEBUG(2, "-- Remote MTU: 0x%04X", ChannelData->RemoteMTU);
BT_ACL_DEBUG(2, "-- Options Len: 0x%04X", OptionsLen);
/* Only look at the channel configuration options if a valid channel entry for the local channel number was found */

116
Demos/Host/Incomplete/BluetoothHost/Lib/ServiceDiscoveryProtocol.c
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@ -31,41 +31,6 @@
#define INCLUDE_FROM_SERVICEDISCOVERYPROTOCOL_C
#include "ServiceDiscoveryProtocol.h"
const struct
{
uint8_t Header;
uint32_t Data;
} PROGMEM ServiceDiscoveryServer_Attribute_ServiceHandle = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_32Bit), 0x00000000};
const struct
{
uint8_t Header;
uint16_t Size;
ClassUUID_t UUIDList[];
} PROGMEM ServiceDiscoveryServer_Attribute_ServiceClassIDs =
{
(SDP_DATATYPE_Sequence | SDP_DATASIZE_Variable16Bit), (sizeof(ClassUUID_t) * 1),
{
{.Header = (SDP_DATATYPE_UUID | SDP_DATASIZE_128Bit), .UUID = {BASE_96BIT_UUID, 0x01, 0x00, 0x00, 0x00}}
}
};
const struct
{
uint8_t Header;
uint16_t Data;
} PROGMEM ServiceDiscoveryServer_Attribute_Version = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_16Bit), 0x0100};
/** Service Discovery Protocol attribute table, listing all supported attributes of the service. */
const ServiceAttributeTable_t ServiceDiscoveryServer_Attribute_Table[] PROGMEM =
{
{.AttributeID = SDP_ATTRIBUTE_ID_SERVICERECORDHANDLE, .Data = &ServiceDiscoveryServer_Attribute_ServiceHandle },
{.AttributeID = SDP_ATTRIBUTE_ID_SERVICECLASSIDS, .Data = &ServiceDiscoveryServer_Attribute_ServiceClassIDs },
{.AttributeID = SDP_ATTRIBUTE_ID_VERSION, .Data = &ServiceDiscoveryServer_Attribute_Version },
SERVICE_ATTRIBUTE_TABLE_TERMINATOR
};
/** Service Discovery Protocol attribute, indicationg the service's name. */
const struct
{
@ -101,6 +66,21 @@ const struct
uint32_t Data;
} PROGMEM SDP_Attribute_ServiceHandle = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_32Bit), 0x00000001};
const struct
{
uint8_t Header;
uint8_t Size;
Version_t VersionList[];
} PROGMEM SDP_Attribute_Version =
{
.Header = (SDP_DATATYPE_Sequence | SDP_DATASIZE_Variable8Bit),
.Size = (sizeof(Version_t) * 1),
.VersionList =
{
{.Header = (SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_16Bit), .Version = 0x0100}
}
};
const struct
{
uint8_t Header;
@ -108,10 +88,12 @@ const struct
ClassUUID_t UUIDList[];
} PROGMEM SDP_Attribute_ServiceClassIDs =
{
(SDP_DATATYPE_Sequence | SDP_DATASIZE_Variable16Bit), (sizeof(ClassUUID_t) * 1),
{
{.Header = (SDP_DATATYPE_UUID | SDP_DATASIZE_128Bit), .UUID = {BASE_96BIT_UUID, 0x00, 0x00, 0x00, 0x01}}
}
.Header = (SDP_DATATYPE_Sequence | SDP_DATASIZE_Variable16Bit),
.Size = (sizeof(ClassUUID_t) * 1),
.UUIDList =
{
{.Header = (SDP_DATATYPE_UUID | SDP_DATASIZE_128Bit), .UUID = {BASE_96BIT_UUID, 0x01, 0x00, 0x00, 0x00}}
}
};
/** Service Discovery Protocol attribute table, listing all supported attributes of the service. */
@ -119,6 +101,7 @@ const ServiceAttributeTable_t SDP_Attribute_Table[] PROGMEM =
{
{.AttributeID = SDP_ATTRIBUTE_ID_SERVICERECORDHANDLE, .Data = &SDP_Attribute_ServiceHandle },
{.AttributeID = SDP_ATTRIBUTE_ID_SERVICECLASSIDS, .Data = &SDP_Attribute_ServiceClassIDs },
{.AttributeID = SDP_ATTRIBUTE_ID_VERSION, .Data = &SDP_Attribute_Version },
{.AttributeID = SDP_ATTRIBUTE_ID_LANGIDOFFSET, .Data = &SDP_Attribute_LanguageOffset },
{.AttributeID = SDP_ATTRIBUTE_ID_NAME, .Data = &SDP_Attribute_Name },
{.AttributeID = SDP_ATTRIBUTE_ID_DESCRIPTION, .Data = &SDP_Attribute_Description },
@ -131,10 +114,6 @@ const ServiceAttributeTable_t SDP_Attribute_Table[] PROGMEM =
*/
const ServiceTable_t SDP_Services_Table[] PROGMEM =
{
{ // 128-bit UUID for the Service Discovery Server Service
.UUID = {BASE_96BIT_UUID, 0x01, 0x00, 0x00, 0x00},
.AttributeTable = ServiceDiscoveryServer_Attribute_Table,
},
{ // 128-bit UUID for the SDP service
.UUID = {BASE_96BIT_UUID, 0x00, 0x00, 0x00, 0x01},
.AttributeTable = SDP_Attribute_Table,
@ -312,7 +291,8 @@ static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHe
static uint16_t SDP_AddAttributeToResponse(const uint16_t AttributeID, const void* AttributeValue, void** ResponseBuffer)
{
/* Retrieve the size of the attribute value from its container header */
uint32_t AttributeValueLength = SDP_GetLocalAttributeContainerSize(AttributeValue);
uint8_t AttributeHeaderLength;
uint32_t AttributeValueLength = SDP_GetLocalAttributeContainerSize(AttributeValue, &AttributeHeaderLength);
/* Add a Data Element header to the response for the Attribute ID */
*((uint8_t*)*ResponseBuffer) = (SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_16Bit);
@ -323,10 +303,10 @@ static uint16_t SDP_AddAttributeToResponse(const uint16_t AttributeID, const voi
*ResponseBuffer += sizeof(uint16_t);
/* Copy over the Attribute value Data Element container to the response */
memcpy_P(*ResponseBuffer, AttributeValue, AttributeValueLength);
*ResponseBuffer += AttributeValueLength;
memcpy_P(*ResponseBuffer, AttributeValue, AttributeHeaderLength + AttributeValueLength);
*ResponseBuffer += AttributeHeaderLength + AttributeValueLength;
return (sizeof(uint8_t) + sizeof(uint16_t) + AttributeValueLength);
return (sizeof(uint8_t) + sizeof(uint16_t) + AttributeHeaderLength + AttributeValueLength);
}
/** Retrieves a pointer to the value of the given Attribute ID from the given Attribute table.
@ -364,9 +344,35 @@ static ServiceAttributeTable_t* SDP_GetAttributeTable(const uint8_t* const UUID)
/* 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++)
{
/* Read in a pointer to the current UUID table entry's Attribute table */
ServiceAttributeTable_t* CurrAttributeTable = (ServiceAttributeTable_t*)pgm_read_word(&SDP_Services_Table[CurrTableItem].AttributeTable);
/* If the current table item's UUID matches the search UUID, return a pointer the table item's Attribute table */
if (!(memcmp_P(UUID, SDP_Services_Table[CurrTableItem].UUID, UUID_SIZE_BYTES)))
return (ServiceAttributeTable_t*)pgm_read_word(&SDP_Services_Table[CurrTableItem].AttributeTable);
return CurrAttributeTable;
/* Retrieve the list of the service's Class UUIDs from its Attribute table */
void* ClassUUIDs = SDP_GetAttributeValue(CurrAttributeTable, SDP_ATTRIBUTE_ID_SERVICECLASSIDS);
/* Go to the next UUID in the table if the current item does not have a list of Class UUIDs */
if (ClassUUIDs == NULL)
continue;
/* 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);
ClassUUIDs += ClassUUIDListHeaderSize;
/* Check each class UUID in turn for a match */
while (ClassUUIDListSize)
{
/* Current Service UUID's Class UUID list has a matching entry, return the Attribute table */
if (!(memcmp_P(UUID, (ClassUUIDs + 1), UUID_SIZE_BYTES)))
return CurrAttributeTable;
ClassUUIDs += sizeof(uint8_t) + UUID_SIZE_BYTES;
ClassUUIDListSize -= sizeof(uint8_t) + UUID_SIZE_BYTES;
}
}
return NULL;
@ -459,7 +465,7 @@ static uint8_t SDP_GetUUIDList(uint8_t UUIDList[][UUID_SIZE_BYTES], const void**
*
* \return Size in bytes of the entire attribute container, including the header
*/
static uint32_t SDP_GetLocalAttributeContainerSize(const void* const AttributeData)
static uint32_t SDP_GetLocalAttributeContainerSize(const void* const AttributeData, uint8_t* const HeaderSize)
{
/* Fetch the size of the Data Element structure from the header */
uint8_t SizeIndex = (pgm_read_byte(AttributeData) & 0x07);
@ -468,13 +474,17 @@ static uint32_t SDP_GetLocalAttributeContainerSize(const void* const AttributeDa
switch (SizeIndex)
{
case SDP_DATASIZE_Variable8Bit:
return (1 + sizeof(uint8_t)) + pgm_read_byte(AttributeData + 1);
*HeaderSize = (1 + sizeof(uint8_t));
return pgm_read_byte(AttributeData + 1);
case SDP_DATASIZE_Variable16Bit:
return (1 + sizeof(uint16_t)) + pgm_read_word(AttributeData + 1);
*HeaderSize = (1 + sizeof(uint16_t));
return pgm_read_word(AttributeData + 1);
case SDP_DATASIZE_Variable32Bit:
return (1 + sizeof(uint32_t)) + pgm_read_dword(AttributeData + 1);
*HeaderSize = (1 + sizeof(uint32_t));
return pgm_read_dword(AttributeData + 1);
default:
return (1 + (1 << SizeIndex));
*HeaderSize = 1;
return (1 << SizeIndex);
}
return 0;

13
Demos/Host/Incomplete/BluetoothHost/Lib/ServiceDiscoveryProtocol.h
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@ -138,10 +138,17 @@
/** Structure for a list of Data Elements containing UUIDs, for service attributes requiring UUID lists. */
typedef struct
{
uint8_t Header; /**< Data Element header, should be (SDP_DATATYPE_Sequence | SDP_DATASIZE_Variable16Bit) */
uint16_t UUID[UUID_SIZE_BYTES]; /**< UUID to store in the list Data Element */
uint8_t Header; /**< Data Element header, should be (SDP_DATATYPE_UUID | SDP_DATASIZE_128Bit) */
uint8_t UUID[UUID_SIZE_BYTES]; /**< UUID to store in the list Data Element */
} ClassUUID_t;
/** Structure for a list of Data Elements containing Version Numbers, for service attributes requiring Version lists. */
typedef struct
{
uint8_t Header; /**< Data Element header, should be (SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_16Bit) */
uint16_t Version; /**< Version number to store in the list Data Element */
} Version_t;
/* Inline Functions: */
/** Adds a new Data Element container of the given type with a 16-bit size header to the buffer. The
* buffer pointer's position is advanced past the added header once the element has been added. The
@ -180,7 +187,7 @@
static ServiceAttributeTable_t* SDP_GetAttributeTable(const uint8_t* const UUID);
static uint8_t SDP_GetAttributeList(uint16_t AttributeList[][2], const void** const CurrentParameter);
static uint8_t SDP_GetUUIDList(uint8_t UUIDList[][UUID_SIZE_BYTES], const void** const CurrentParameter);
static uint32_t SDP_GetLocalAttributeContainerSize(const void* const AttributeData);
static uint32_t SDP_GetLocalAttributeContainerSize(const void* const AttributeData, uint8_t* const HeaderSize);
static uint32_t SDP_GetDataElementSize(const void** const AttributeHeader, uint8_t* const ElementHeaderSize);
#endif

6
LUFA/Common/Common.h
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@ -108,9 +108,9 @@
* \ingroup Group_Debugging
*/
#define SERIAL_STREAM_ASSERT(x) MACROS{ if (!(x)) { printf_P(PSTR("%s: Function \"%s\", Line %d: " \
"Assertion \"%s\" failed.\r\n"), \
__FILE__, __func__, __LINE__, #x); \
} }MACROE
"Assertion \"%s\" failed.\r\n"), \
__FILE__, __func__, __LINE__, #x); } \
}MACROE
/* Inline Functions: */
/** Function to reverse the individual bits in a byte - i.e. bit 7 is moved to bit 0, bit 6 to bit 1,

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