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implemented sdp_handle_service_attribute_request

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matthias.ringwald 2010-06-12 18:29:11 +00:00
parent 1ea34cf48f
commit cbb14c3ddc
1 changed files with 41 additions and 21 deletions
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62
src/sdp.c
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@ -214,6 +214,46 @@ int sdp_handle_service_search_request(uint8_t * packet){
return pos;
}
int sdp_handle_service_attribute_request(uint8_t * packet){
// get request details
uint16_t transaction_id = READ_NET_16(packet, 1);
// not used yet - uint16_t param_len = READ_NET_16(packet, 3);
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];
// header
sdp_response_buffer[0] = SDP_ServiceAttributeResponse;
net_store_16(sdp_response_buffer, 1, transaction_id);
// AttributeList - starts at offset 7
uint16_t pos = 7;
uint8_t *attributeList = &sdp_response_buffer[pos];
de_create_sequence(attributeList);
service_record_item_t * item = sdp_get_record_for_handle(serviceRecordHandle);
if (item){
// copy specified attributes
sdp_append_attributes_in_attributeIDList(item->service_record, attributeIDList, attributeList, maximumAttributeByteCount);
}
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
net_store_16(sdp_response_buffer, 3, pos - 5); // empty list
return pos;
}
int sdp_handle_service_search_attribute_request(uint8_t * packet){
// get request details
@ -235,10 +275,6 @@ int sdp_handle_service_search_attribute_request(uint8_t * packet){
uint8_t *attributeLists = &sdp_response_buffer[pos];
de_create_sequence(attributeLists);
// dump
// printf("ServiceSearchPattern:\n");
// de_dump_data_element(serviceSearchPattern);
// for all service records that match
linked_item_t *it;
for (it = (linked_item_t *) sdp_service_records; it ; it = it->next){
@ -288,26 +324,10 @@ static void sdp_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *p
break;
case SDP_ServiceAttributeRequest:
// header
sdp_response_buffer[0] = SDP_ServiceAttributeResponse;
net_store_16(sdp_response_buffer, 1, transaction_id);
// AttributeListByteCount::
net_store_16(sdp_response_buffer, pos, 2); // 2 bytes in DES with 1 byte len
pos += 2;
// AttributeLists
sdp_response_buffer[pos++] = 0x35;
sdp_response_buffer[pos++] = 0;
// Continuation State: none
sdp_response_buffer[pos++] = 0;
// update len info
net_store_16(sdp_response_buffer, 3, pos - 5); // empty list
pos = sdp_handle_service_attribute_request(packet);
l2cap_send_internal(channel, sdp_response_buffer, pos);
break;
case SDP_ServiceSearchAttributeRequest:
pos = sdp_handle_service_search_attribute_request(packet);
l2cap_send_internal(channel, sdp_response_buffer, pos);