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@ -31,13 +31,48 @@
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#define INCLUDE_FROM_SERVICEDISCOVERYPROTOCOL_C
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#include "ServiceDiscoveryProtocol.h"
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const struct
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{
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uint8_t Header;
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uint32_t Data;
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} PROGMEM ServiceDiscoveryServer_Attribute_ServiceHandle = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_32Bit), 0x00000000};
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const struct
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{
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uint8_t Header;
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uint16_t Size;
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ClassUUID_t UUIDList[];
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} PROGMEM ServiceDiscoveryServer_Attribute_ServiceClassIDs =
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{
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(SDP_DATATYPE_Sequence | SDP_DATASIZE_Variable16Bit), (sizeof(ClassUUID_t) * 1),
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{
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{.Header = (SDP_DATATYPE_UUID | SDP_DATASIZE_128Bit), .UUID = {BASE_96BIT_UUID, 0x01, 0x00, 0x00, 0x00}}
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}
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};
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const struct
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{
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uint8_t Header;
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uint16_t Data;
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} PROGMEM ServiceDiscoveryServer_Attribute_Version = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_16Bit), 0x0100};
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/** Service Discovery Protocol attribute table, listing all supported attributes of the service. */
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const ServiceAttributeTable_t ServiceDiscoveryServer_Attribute_Table[] PROGMEM =
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{
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{.AttributeID = SDP_ATTRIBUTE_ID_SERVICERECORDHANDLE, .Data = &ServiceDiscoveryServer_Attribute_ServiceHandle },
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{.AttributeID = SDP_ATTRIBUTE_ID_SERVICECLASSIDS, .Data = &ServiceDiscoveryServer_Attribute_ServiceClassIDs },
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{.AttributeID = SDP_ATTRIBUTE_ID_VERSION, .Data = &ServiceDiscoveryServer_Attribute_Version },
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SERVICE_ATTRIBUTE_TABLE_TERMINATOR
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};
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/** Service Discovery Protocol attribute, indicationg the service's name. */
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const struct
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{
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uint8_t Header;
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uint8_t Length;
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uint8_t Data[];
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} PROGMEM SDP_Attribute_Name = {(SDP_DATATYPE_String | 5), sizeof("SDP"), "SDP"};
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} PROGMEM SDP_Attribute_Name = {(SDP_DATATYPE_String | SDP_DATASIZE_Variable8Bit), sizeof("SDP"), "SDP"};
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/** Service Discovery Protocol attribute, indicationg the service's description. */
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const struct
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@ -45,37 +80,37 @@ const struct
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uint8_t Header;
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uint8_t Length;
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uint8_t Data[];
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} PROGMEM SDP_Attribute_Description = {(SDP_DATATYPE_String | 5), sizeof("BT Service Discovery"), "BT Service Discovery"};
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} PROGMEM SDP_Attribute_Description = {(SDP_DATATYPE_String | SDP_DATASIZE_Variable8Bit), sizeof("BT Service Discovery"), "BT Service Discovery"};
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/** Service Discovery Protocol attribute, indicationg the service's availability. */
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const struct
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{
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uint8_t Header;
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uint8_t Data;
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} PROGMEM SDP_Attribute_Availability = {(SDP_DATATYPE_UnsignedInt | 0), 0xFF};
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} PROGMEM SDP_Attribute_Availability = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_8Bit), 0xFF};
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const struct
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{
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uint8_t Header;
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uint16_t Data;
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} PROGMEM SDP_Attribute_LanguageOffset = {(SDP_DATATYPE_UnsignedInt | 1), SDP_ATTRIBUTE_LANGOFFSET};
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} PROGMEM SDP_Attribute_LanguageOffset = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_16Bit), SDP_ATTRIBUTE_LANGOFFSET};
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const struct
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{
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uint8_t Header;
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uint16_t Data;
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} PROGMEM SDP_Attribute_ServiceHandle = {(SDP_DATATYPE_UnsignedInt | 1), 0x0001};
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uint32_t Data;
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} PROGMEM SDP_Attribute_ServiceHandle = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_32Bit), 0x00000001};
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const struct
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{
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uint8_t Header;
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uint8_t Size;
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uint16_t Size;
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ClassUUID_t UUIDList[];
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} PROGMEM SDP_Attribute_ServiceClassIDs =
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{
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(SDP_DATATYPE_Sequence | 5), (sizeof(ClassUUID_t) * 1),
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(SDP_DATATYPE_Sequence | SDP_DATASIZE_Variable16Bit), (sizeof(ClassUUID_t) * 1),
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{
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{.Header = (SDP_DATATYPE_UUID | 5), .Size = UUID_SIZE_BYTES, .UUID = {BASE_96BIT_UUID, 0x01, 0x00, 0x00, 0x00}}
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{.Header = (SDP_DATATYPE_UUID | SDP_DATASIZE_128Bit), .UUID = {BASE_96BIT_UUID, 0x00, 0x00, 0x00, 0x01}}
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}
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};
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@ -96,8 +131,12 @@ const ServiceAttributeTable_t SDP_Attribute_Table[] PROGMEM =
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*/
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const ServiceTable_t SDP_Services_Table[] PROGMEM =
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{
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{ // 128-bit UUID for the SDP service
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{ // 128-bit UUID for the Service Discovery Server Service
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.UUID = {BASE_96BIT_UUID, 0x01, 0x00, 0x00, 0x00},
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.AttributeTable = ServiceDiscoveryServer_Attribute_Table,
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},
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{ // 128-bit UUID for the SDP service
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.UUID = {BASE_96BIT_UUID, 0x00, 0x00, 0x00, 0x01},
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.AttributeTable = SDP_Attribute_Table,
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},
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#if 0
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@ -196,7 +235,7 @@ static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHe
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} ResponsePacket;
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/* Create a pointer to the buffer to indicate the current location for response data to be added */
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uint8_t* CurrResponsePos = ResponsePacket.ResponseData;
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void* CurrResponsePos = ResponsePacket.ResponseData;
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/* Clamp the maximum attribute size to the size of the allocated buffer */
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if (MaxAttributeSize > sizeof(ResponsePacket.ResponseData))
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@ -215,6 +254,8 @@ static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHe
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if (AttributeTable == NULL)
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continue;
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BT_SDP_DEBUG(2, " -- Found UUID %d in table", CurrUUIDItem);
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/* Add an inner Data Element Sequence header for the current UUID's found Attributes */
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uint16_t* CurrentUUIDResponseSize = SDP_AddDataElementHeader16(&CurrResponsePos, SDP_DATATYPE_Sequence);
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@ -232,25 +273,11 @@ static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHe
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/* If the Attribute does not exist in the current UUID's Attribute table, continue to the next Attribute ID */
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if (AttributeValue == NULL)
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continue;
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/* Retrieve the size of the attribute value from its container header */
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uint32_t AttributeValueLength = SDP_GetLocalAttributeContainerSize(AttributeValue);
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BT_SDP_DEBUG(2, " -- Add Attribute 0x%04X", CurrAttributeID);
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/* Add a Data Element header to the response for the Attribute ID */
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*((uint8_t*)CurrResponsePos) = (1 | SDP_DATATYPE_UnsignedInt);
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CurrResponsePos += sizeof(uint8_t);
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/* Add the Attribute ID to the created Data Element */
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*((uint16_t*)CurrResponsePos) = CurrAttributeID;
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CurrResponsePos += sizeof(uint16_t);
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/* Copy over the Attribute value Data Element container to the response */
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memcpy_P(CurrResponsePos, AttributeValue, AttributeValueLength);
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CurrResponsePos += AttributeValueLength;
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/* Increment the current UUID's returned Attribute container size by the number of added bytes */
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*CurrentUUIDResponseSize += sizeof(uint8_t) + sizeof(uint16_t) + AttributeValueLength;
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*CurrentUUIDResponseSize += SDP_AddAttributeToResponse(CurrAttributeID, AttributeValue, &CurrResponsePos);
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}
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/* Increment the outer container size by the number of added bytes */
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@ -274,6 +301,34 @@ static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHe
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Channel);
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}
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/** Adds the given attribute ID and value to the reponse buffer, and advances the response buffer pointer past the added data.
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*
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* \param[in] AttributeID Attribute ID to add to the response buffer
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* \param[in] AttributeValue Pointer to the start of the Attribute's value, located in PROGMEM
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* \param[in, out] ResponseBuffer Pointer to a buffer where the Attribute and Attribute Value is to be added
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*
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* \return Number of bytes added to the response buffer
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*/
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static uint16_t SDP_AddAttributeToResponse(const uint16_t AttributeID, const void* AttributeValue, void** ResponseBuffer)
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{
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/* Retrieve the size of the attribute value from its container header */
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uint32_t AttributeValueLength = SDP_GetLocalAttributeContainerSize(AttributeValue);
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/* Add a Data Element header to the response for the Attribute ID */
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*((uint8_t*)*ResponseBuffer) = (SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_16Bit);
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*ResponseBuffer += sizeof(uint8_t);
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/* Add the Attribute ID to the created Data Element */
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*((uint16_t*)*ResponseBuffer) = AttributeID;
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*ResponseBuffer += sizeof(uint16_t);
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/* Copy over the Attribute value Data Element container to the response */
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memcpy_P(*ResponseBuffer, AttributeValue, AttributeValueLength);
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*ResponseBuffer += AttributeValueLength;
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return (sizeof(uint8_t) + sizeof(uint16_t) + AttributeValueLength);
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}
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/** Retrieves a pointer to the value of the given Attribute ID from the given Attribute table.
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*
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* \param[in] AttributeTable Pointer to the Attribute table to search in
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@ -412,11 +467,11 @@ static uint32_t SDP_GetLocalAttributeContainerSize(const void* const AttributeDa
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/* Convert the Data Element size index into a size in bytes */
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switch (SizeIndex)
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{
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case 5:
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return (1 + sizeof(uint8_t)) + pgm_read_byte(AttributeData + 1);
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case 6:
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case SDP_DATASIZE_Variable8Bit:
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return (1 + sizeof(uint8_t)) + pgm_read_byte(AttributeData + 1);
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case SDP_DATASIZE_Variable16Bit:
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return (1 + sizeof(uint16_t)) + pgm_read_word(AttributeData + 1);
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case 7:
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case SDP_DATASIZE_Variable32Bit:
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return (1 + sizeof(uint32_t)) + pgm_read_dword(AttributeData + 1);
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default:
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return (1 + (1 << SizeIndex));
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@ -444,17 +499,17 @@ static uint32_t SDP_GetDataElementSize(const void** const DataElementHeader, uin
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/* Convert the Data Element size index into a size in bytes */
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switch (SizeIndex)
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{
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case 5:
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case SDP_DATASIZE_Variable8Bit:
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ElementValue = *((uint8_t*)*DataElementHeader);
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*DataElementHeader += sizeof(uint8_t);
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*ElementHeaderSize = (1 + sizeof(uint8_t));
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break;
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case 6:
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case SDP_DATASIZE_Variable16Bit:
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ElementValue = *((uint16_t*)*DataElementHeader);
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*DataElementHeader += sizeof(uint16_t);
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*ElementHeaderSize = (1 + sizeof(uint16_t));
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break;
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case 7:
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case SDP_DATASIZE_Variable32Bit:
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ElementValue = *((uint32_t*)*DataElementHeader);
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*DataElementHeader += sizeof(uint32_t);
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*ElementHeaderSize = (1 + sizeof(uint32_t));
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