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implemented continuation handling for sdp_handle_service_attribute_request

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matthias.ringwald 2010-06-13 09:58:11 +00:00
parent 22b372ba48
commit e170797053
1 changed files with 22 additions and 13 deletions
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35
src/sdp.c
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@ -153,7 +153,7 @@ uint32_t sdp_register_service_internal(connection_t *connection, uint8_t * recor
de_pop_sequence(newRecord, serviceRecordHandleAttribute);
// add other attributes
sdp_append_attributes_in_attributeIDList(record, (uint8_t *) removeServiceRecordHandleAttributeIDList, newRecord, recordSize);
sdp_append_attributes_in_attributeIDList(record, (uint8_t *) removeServiceRecordHandleAttributeIDList, 0, recordSize, newRecord);
// dump for now
de_dump_data_element(newRecord);
@ -273,8 +273,14 @@ int sdp_handle_service_attribute_request(uint8_t * packet){
uint32_t serviceRecordHandle = READ_NET_32(packet, 5);
uint16_t maximumAttributeByteCount = READ_NET_16(packet, 9);
uint8_t * attributeIDList = &packet[11];
// not used yet - uint16_t attributeIDListLen = de_get_len(attributeIDList);
// not used yet - uint8_t * continuationState = &packet[5+serviceSearchPatternLen+2+attributeIDListLen];
uint16_t attributeIDListLen = de_get_len(attributeIDList);
uint8_t * continuationState = &packet[11+attributeIDListLen];
// continuation state contains index of next attribute to examine
uint16_t continuation_index = 0;
if (continuationState[0] == 2){
continuation_index = READ_NET_16(continuationState, 1);
}
// get service record
service_record_item_t * item = sdp_get_record_for_handle(serviceRecordHandle);
@ -292,18 +298,21 @@ int sdp_handle_service_attribute_request(uint8_t * packet){
uint8_t *attributeList = &sdp_response_buffer[pos];
de_create_sequence(attributeList);
// copy specified attributes
sdp_append_attributes_in_attributeIDList(item->service_record, attributeIDList, attributeList, maximumAttributeByteCount);
continuation_index = sdp_append_attributes_in_attributeIDList(item->service_record, attributeIDList, continuation_index, maximumAttributeByteCount, attributeList);
pos += de_get_len(attributeList);
// AttributeListByteCount - at offset 5
net_store_16(sdp_response_buffer, 5, de_get_len(attributeList));
// Continuation State: none
// @TODO send correct continuation state
sdp_response_buffer[pos++] = 0;
// update len info
// Continuation State
if (continuation_index) {
sdp_response_buffer[pos++] = 2;
net_store_16(sdp_response_buffer, pos, continuation_index);
pos += 2;
} else {
sdp_response_buffer[pos++] = 0;
}
// update header
net_store_16(sdp_response_buffer, 3, pos - 5); // empty list
net_store_16(sdp_response_buffer, 5, de_get_len(attributeList));
return pos;
}
@ -338,7 +347,7 @@ int sdp_handle_service_search_attribute_request(uint8_t * packet){
if (sdp_record_matches_service_search_pattern(item->service_record, serviceSearchPattern)){
// copy specified attributes
uint8_t * attributes = de_push_sequence(attributeLists);
sdp_append_attributes_in_attributeIDList(item->service_record, attributeIDList, attributes, maximumAttributeByteCount);
sdp_append_attributes_in_attributeIDList(item->service_record, attributeIDList, 0, maximumAttributeByteCount, attributes);
de_pop_sequence(attributeLists, attributes);
}
}