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att_server: use provided eatt buffer

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This commit is contained in:
Matthias Ringwald 2023-05-16 18:50:14 +02:00
parent 8d3bb68f49
commit 9988bc8aa6
1 changed files with 24 additions and 8 deletions
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32
src/ble/att_server.c
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@ -584,11 +584,19 @@ static void att_signed_write_handle_cmac_result(uint8_t hash[8]){
// pre: att_server->state == ATT_SERVER_REQUEST_RECEIVED_AND_VALIDATED
// pre: can send now
// uses l2cap outgoing buffer if no eatt_buffer provided
// returns: 1 if packet was sent
static int att_server_process_validated_request(att_server_t * att_server, att_connection_t * att_connection){
static int
att_server_process_validated_request(att_server_t *att_server, att_connection_t *att_connection, uint8_t *eatt_buffer) {
uint8_t * att_response_buffer;
if (eatt_buffer != NULL){
att_response_buffer = eatt_buffer;
} else {
l2cap_reserve_packet_buffer();
att_response_buffer = l2cap_get_outgoing_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_server->request_buffer, att_server->request_size, att_response_buffer);
#ifdef ENABLE_ATT_DELAYED_RESPONSE
@ -602,7 +610,9 @@ static int att_server_process_validated_request(att_server_t * att_server, att_c
}
// free reserved buffer
l2cap_release_packet_buffer();
if (eatt_buffer == NULL){
l2cap_release_packet_buffer();
}
return 0;
}
#endif
@ -615,11 +625,15 @@ static int att_server_process_validated_request(att_server_t * att_server, att_c
switch (gap_authorization_state(att_connection->con_handle)){
case AUTHORIZATION_UNKNOWN:
l2cap_release_packet_buffer();
if (eatt_buffer == NULL){
l2cap_release_packet_buffer();
}
sm_request_pairing(att_connection->con_handle);
return 0;
case AUTHORIZATION_PENDING:
l2cap_release_packet_buffer();
if (eatt_buffer == NULL){
l2cap_release_packet_buffer();
}
return 0;
default:
break;
@ -628,11 +642,13 @@ static int att_server_process_validated_request(att_server_t * att_server, att_c
att_server->state = ATT_SERVER_IDLE;
if (att_response_size == 0u) {
l2cap_release_packet_buffer();
if (eatt_buffer == NULL){
l2cap_release_packet_buffer();
}
return 0;
}
(void) att_server_send_prepared(att_server, att_connection, NULL, att_response_size);
(void) att_server_send_prepared(att_server, att_connection, eatt_buffer, att_response_size);
// notify client about MTU exchange result
if (att_response_buffer[0] == ATT_EXCHANGE_MTU_RESPONSE){