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use prepared packets in att_server.c

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matthias.ringwald@gmail.com 2014-04-03 20:39:43 +00:00
parent 68a0fcf7e2
commit 3d0fc0bc8b
1 changed files with 18 additions and 8 deletions
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26
ble/att_server.c
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@ -255,8 +255,9 @@ static void att_run(void){
case ATT_SERVER_REQUEST_RECEIVED_AND_VALIDATED:
if (!l2cap_can_send_connectionless_packet_now()) return;
uint8_t att_response_buffer[28];
uint16_t att_response_size = att_handle_request(&att_connection, att_request_buffer, att_request_size, att_response_buffer);
l2cap_reserve_packet_buffer();
uint8_t * att_response_buffer = l2cap_get_outgoing_buffer();
uint16_t att_response_size = att_handle_request(&att_connection, att_request_buffer, att_request_size, att_response_buffer);
// intercept "insufficient authorization" for authenticated connections to allow for user authorization
if (att_response_buffer[0] == ATT_ERROR_RESPONSE
@ -264,9 +265,11 @@ static void att_run(void){
&& att_connection.authenticated){
switch (sm_authorization_state(att_client_addr_type, att_client_address)){
case AUTHORIZATION_UNKNOWN:
l2cap_release_packet_buffer();
sm_request_authorization(att_client_addr_type, att_client_address);
return;
case AUTHORIZATION_PENDING:
l2cap_release_packet_buffer();
return;
default:
break;
@ -274,9 +277,12 @@ static void att_run(void){
}
att_server_state = ATT_SERVER_IDLE;
if (att_response_size == 0) return;
if (att_response_size == 0) {
l2cap_release_packet_buffer();
return;
}
l2cap_send_connectionless(att_request_handle, L2CAP_CID_ATTRIBUTE_PROTOCOL, att_response_buffer, att_response_size);
l2cap_send_prepared_connectionless(att_request_handle, L2CAP_CID_ATTRIBUTE_PROTOCOL, att_response_size);
break;
}
}
@ -330,9 +336,12 @@ int att_server_can_send(){
}
int att_server_notify(uint16_t handle, uint8_t *value, uint16_t value_len){
uint8_t packet_buffer[att_connection.mtu];
if (!l2cap_can_send_connectionless_packet_now()) return BTSTACK_ACL_BUFFERS_FULL;
l2cap_reserve_packet_buffer();
uint8_t * packet_buffer = l2cap_get_outgoing_buffer();
uint16_t size = att_prepare_handle_value_notification(&att_connection, handle, value, value_len, packet_buffer);
return l2cap_send_connectionless(att_request_handle, L2CAP_CID_ATTRIBUTE_PROTOCOL, packet_buffer, size);
return l2cap_send_prepared_connectionless(att_request_handle, L2CAP_CID_ATTRIBUTE_PROTOCOL, size);
}
int att_server_indicate(uint16_t handle, uint8_t *value, uint16_t value_len){
@ -345,8 +354,9 @@ int att_server_indicate(uint16_t handle, uint8_t *value, uint16_t value_len){
run_loop_set_timer(&att_handle_value_indication_timer, ATT_TRANSACTION_TIMEOUT_MS);
run_loop_add_timer(&att_handle_value_indication_timer);
uint8_t packet_buffer[att_connection.mtu];
l2cap_reserve_packet_buffer();
uint8_t * packet_buffer = l2cap_get_outgoing_buffer();
uint16_t size = att_prepare_handle_value_indication(&att_connection, handle, value, value_len, packet_buffer);
l2cap_send_connectionless(att_request_handle, L2CAP_CID_ATTRIBUTE_PROTOCOL, packet_buffer, size);
l2cap_send_prepared_connectionless(att_request_handle, L2CAP_CID_ATTRIBUTE_PROTOCOL, size);
return 0;
}