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Fixed RNDISEthernet demos crashing when calculating checksums for Ethernet/TCP packets of more than ~500 bytes due to an overflow in the checksum calculation loop (thanks to Kevin Malec).

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Removed string Attributes from the Service Discovery Protocol code to minimise the potential points of failure while the base code is being debugged.
This commit is contained in:
Dean Camera 2010-05-25 06:14:37 +00:00
parent 8f3d4e69c3
commit 4a13a5484a
8 changed files with 18 additions and 50 deletions
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50
Demos/Host/Incomplete/BluetoothHost/Lib/ServiceDiscoveryProtocol.c
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@ -31,40 +31,18 @@
#define INCLUDE_FROM_SERVICEDISCOVERYPROTOCOL_C
#include "ServiceDiscoveryProtocol.h"
/** Service Discovery Protocol attribute, indicationg the service's name. */
const struct
{
uint8_t Header;
uint8_t Length;
uint8_t Data[];
} PROGMEM SDP_Attribute_Name = {(SDP_DATATYPE_String | SDP_DATASIZE_Variable8Bit), sizeof("SDP"), "SDP"};
/** Service Discovery Protocol attribute, indicationg the service's description. */
const struct
{
uint8_t Header;
uint8_t Length;
uint8_t Data[];
} PROGMEM SDP_Attribute_Description = {(SDP_DATATYPE_String | SDP_DATASIZE_Variable8Bit), sizeof("BT Service Discovery"), "BT Service Discovery"};
/** Service Discovery Protocol attribute, indicationg the service's availability. */
/** Service Discovery Protocol attribute, indicating the service's availability. */
const struct
{
uint8_t Header;
uint8_t Data;
} PROGMEM SDP_Attribute_Availability = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_8Bit), 0xFF};
const struct
{
uint8_t Header;
uint16_t Data;
} PROGMEM SDP_Attribute_LanguageOffset = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_16Bit), SDP_ATTRIBUTE_LANGOFFSET};
const struct
{
uint8_t Header;
uint32_t Data;
} PROGMEM SDP_Attribute_ServiceHandle = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_32Bit), 0x00000001};
} PROGMEM SDP_Attribute_ServiceHandle = {(SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_32Bit), 0x00010000};
const struct
{
@ -102,9 +80,6 @@ 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 },
SERVICE_ATTRIBUTE_TABLE_TERMINATOR
};
@ -118,12 +93,6 @@ const ServiceTable_t SDP_Services_Table[] PROGMEM =
.UUID = {BASE_96BIT_UUID, 0x00, 0x00, 0x00, 0x01},
.AttributeTable = SDP_Attribute_Table,
},
#if 0
{ // 128-bit UUID for the RFCOMM service
.UUID = {BASE_96BIT_UUID, 0x03, 0x00, 0x00, 0x00},
.AttributeTable = RFCOMM_Attribute_Table,
},
#endif
};
/** Base UUID value common to all standardized Bluetooth services */
@ -220,7 +189,7 @@ static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHe
if (MaxAttributeSize > sizeof(ResponsePacket.ResponseData))
MaxAttributeSize = sizeof(ResponsePacket.ResponseData);
/* Add the outer Data Element Sequence header for the retrieved Attributes */
/* Add the outer Data Element Sequence header for all of the retrieved Attributes */
uint16_t* TotalResponseSize = SDP_AddDataElementHeader16(&CurrResponsePos, SDP_DATATYPE_Sequence);
/* Search through the list of UUIDs one at a time looking for matching search Attributes */
@ -263,9 +232,12 @@ static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHe
*TotalResponseSize += 3 + *CurrentUUIDResponseSize;
}
}
/* Continuation state - always zero */
*((uint8_t*)CurrResponsePos) = 0;
/* Set the total response list size to the size of the outer container plus its header size */
ResponsePacket.AttributeListByteCount = 3 + *TotalResponseSize;
/* Set the total response list size to the size of the outer container plus its header size and continuation state */
ResponsePacket.AttributeListByteCount = 4 + *TotalResponseSize;
/* Fill in the response packet's header */
ResponsePacket.SDPHeader.PDU = SDP_PDU_SERVICESEARCHATTRIBUTERESPONSE;
@ -367,11 +339,11 @@ static ServiceAttributeTable_t* SDP_GetAttributeTable(const uint8_t* const UUID)
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)))
if (!(memcmp_P(UUID, &((ClassUUID_t*)ClassUUIDs)->UUID, UUID_SIZE_BYTES)))
return CurrAttributeTable;
ClassUUIDs += sizeof(uint8_t) + UUID_SIZE_BYTES;
ClassUUIDListSize -= sizeof(uint8_t) + UUID_SIZE_BYTES;
ClassUUIDListSize -= sizeof(ClassUUID_t);
ClassUUIDs += sizeof(ClassUUID_t);
}
}