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https://github.com/bluekitchen/btstack.git
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cleanup acceptor error handling
This commit is contained in:
Milanka Ringwald
parent
ebdfa28131
commit
7e4156fc6b
@ -584,31 +584,12 @@ static int handle_l2cap_data_packet_for_stream_endpoint(avdtp_connection_t * con
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return 0;
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}
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static void handle_l2cap_data_packet_for_signaling_connection(avdtp_connection_t * connection, uint8_t *packet, uint16_t size){
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avdtp_stream_endpoint_t * stream_endpoint = NULL;
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int offset = avdtp_read_signaling_header(&connection->signaling_packet, packet, size);
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int request_to_send_now_self = 0;
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int call_acceptor_state_machine = 0;
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switch (connection->signaling_packet.message_type){
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static int a2dp_sink_msg_bad_length(avdtp_message_type_t message_type, avdtp_signal_identifier_t signal_identifier, uint16_t msg_size){
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int minimal_msg_lenght = 2;
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switch (message_type){
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case AVDTP_CMD_MSG:
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if (size < 2) {
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connection->error_code = BAD_LENGTH;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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request_to_send_now_self = 1;
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break;
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// avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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// return 1;
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}
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connection->acceptor_transaction_label = connection->signaling_packet.transaction_label;
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switch (connection->signaling_packet.signal_identifier){
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case AVDTP_SI_DISCOVER:
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if (connection->state != AVDTP_SIGNALING_CONNECTION_OPENED) return;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_ANSWER_DISCOVER_SEPS;
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request_to_send_now_self = 1;
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break;
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// check bad length
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switch (signal_identifier){
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case AVDTP_SI_GET_CAPABILITIES:
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case AVDTP_SI_GET_ALL_CAPABILITIES:
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case AVDTP_SI_SET_CONFIGURATION:
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@ -616,75 +597,71 @@ static void handle_l2cap_data_packet_for_signaling_connection(avdtp_connection_t
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case AVDTP_SI_START:
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case AVDTP_SI_CLOSE:
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case AVDTP_SI_ABORT:
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if (size < 3) {
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connection->error_code = BAD_LENGTH;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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request_to_send_now_self = 1;
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break;
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}
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connection->query_seid = packet[offset++] >> 2;
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stream_endpoint = get_avdtp_stream_endpoint_for_active_seid(connection->query_seid);
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if (!stream_endpoint){
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printf(" ACP: cmd %d - RESPONSE REJECT BAD_ACP_SEID\n", connection->signaling_packet.signal_identifier);
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connection->error_code = BAD_ACP_SEID;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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request_to_send_now_self = 1;
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break;
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}
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call_acceptor_state_machine = 1;
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break;
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case AVDTP_SI_RECONFIGURE:
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if (size < 3) {
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connection->error_code = BAD_LENGTH;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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// avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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// return 1;
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request_to_send_now_self = 1;
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break;
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}
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connection->query_seid = packet[offset++] >> 2;
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stream_endpoint = get_avdtp_stream_endpoint_for_active_seid(connection->query_seid);
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if (!stream_endpoint){
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printf(" ACP: AVDTP_SI_RECONFIGURE - CATEGORY RESPONSE REJECT BAD_ACP_SEID\n");
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connection->error_code = BAD_ACP_SEID;
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connection->reject_service_category = 0;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_CATEGORY_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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// avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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// return 1;
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request_to_send_now_self = 1;
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break;
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}
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call_acceptor_state_machine = 1;
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break;
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case AVDTP_SI_OPEN:
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if (size < 3) {
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connection->error_code = BAD_LENGTH;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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// avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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// return 1;
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request_to_send_now_self = 1;
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break;
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}
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minimal_msg_lenght = 3;
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break;
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default:
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break;
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}
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default:
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break;
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}
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return msg_size < minimal_msg_lenght;
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}
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static void handle_l2cap_data_packet_for_signaling_connection(avdtp_connection_t * connection, uint8_t *packet, uint16_t size){
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avdtp_stream_endpoint_t * stream_endpoint = NULL;
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int offset = avdtp_read_signaling_header(&connection->signaling_packet, packet, size);
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connection->acceptor_transaction_label = connection->signaling_packet.transaction_label;
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if (a2dp_sink_msg_bad_length(connection->signaling_packet.message_type, connection->signaling_packet.signal_identifier, size)) {
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connection->error_code = BAD_LENGTH;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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return;
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}
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switch (connection->signaling_packet.message_type){
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case AVDTP_CMD_MSG:
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// deal with AVDTP_SI_DISCOVER;
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// if not AVDTP_SI_DISCOVER, check if stream point exists;
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// if stream point exists call acceptor state machine
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switch (connection->signaling_packet.signal_identifier){
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case AVDTP_SI_DISCOVER:
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if (connection->state != AVDTP_SIGNALING_CONNECTION_OPENED) return;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_ANSWER_DISCOVER_SEPS;
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avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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return;
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case AVDTP_SI_GET_CAPABILITIES:
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case AVDTP_SI_GET_ALL_CAPABILITIES:
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case AVDTP_SI_SET_CONFIGURATION:
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case AVDTP_SI_GET_CONFIGURATION:
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case AVDTP_SI_START:
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case AVDTP_SI_CLOSE:
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case AVDTP_SI_ABORT:
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case AVDTP_SI_OPEN:
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case AVDTP_SI_RECONFIGURE:
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connection->query_seid = packet[offset++] >> 2;
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stream_endpoint = get_avdtp_stream_endpoint_for_active_seid(connection->query_seid);
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if (!stream_endpoint){
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printf(" ACP: AVDTP_SI_OPEN - RESPONSE REJECT BAD_STATE\n");
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connection->error_code = BAD_STATE;
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printf(" ACP: cmd %d - RESPONSE REJECT\n", connection->signaling_packet.signal_identifier);
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connection->error_code = BAD_ACP_SEID;
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if (connection->signaling_packet.signal_identifier == AVDTP_SI_OPEN){
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connection->error_code = BAD_STATE;
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}
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_WITH_ERROR_CODE;
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if (connection->signaling_packet.signal_identifier == AVDTP_SI_RECONFIGURE){
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connection->reject_service_category = connection->query_seid;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_CATEGORY_WITH_ERROR_CODE;
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}
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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request_to_send_now_self = 1;
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break;
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avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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return;
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}
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call_acceptor_state_machine = 1;
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break;
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case AVDTP_SI_SUSPEND:{
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int i;
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@ -704,36 +681,37 @@ static void handle_l2cap_data_packet_for_signaling_connection(avdtp_connection_t
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connection->reject_service_category = connection->query_seid;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_CATEGORY_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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request_to_send_now_self = 1;
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break;
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avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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return;
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}
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// deal with first suspended seid
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for (i = 0; i < connection->num_suspended_seids; i++){
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connection->query_seid = connection->suspended_seids[i];
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stream_endpoint = get_avdtp_stream_endpoint_for_active_seid(connection->query_seid);
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if (!stream_endpoint){
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printf(" ACP: stream_endpoint not found, CATEGORY RESPONSE REJECT BAD_ACP_SEID\n");
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connection->error_code = BAD_ACP_SEID;
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connection->reject_service_category = connection->query_seid;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_CATEGORY_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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connection->num_suspended_seids = 0;
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request_to_send_now_self = 1;
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break;
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}
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call_acceptor_state_machine = 1;
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break;
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// deal with first susspended seid
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connection->query_seid = connection->suspended_seids[0];
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stream_endpoint = get_avdtp_stream_endpoint_for_active_seid(connection->query_seid);
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if (!stream_endpoint){
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printf(" ACP: stream_endpoint not found, CATEGORY RESPONSE REJECT BAD_ACP_SEID\n");
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connection->error_code = BAD_ACP_SEID;
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connection->reject_service_category = connection->query_seid;
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_REJECT_CATEGORY_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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connection->num_suspended_seids = 0;
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avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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return;
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}
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break;
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}
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default:
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connection->acceptor_connection_state = AVDTP_SIGNALING_CONNECTION_ACCEPTOR_W2_GENERAL_REJECT_WITH_ERROR_CODE;
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connection->reject_signal_identifier = connection->signaling_packet.signal_identifier;
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printf("AVDTP_CMD_MSG signal %d not implemented, general reject\n", connection->signaling_packet.signal_identifier);
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request_to_send_now_self = 1;
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break;
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avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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return;
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}
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if (avdtp_acceptor_stream_config_subsm(connection, stream_endpoint, packet, size, offset)){
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avdtp_sink_request_can_send_now_acceptor(connection, connection->l2cap_signaling_cid);
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return;
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}
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break;
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case AVDTP_RESPONSE_ACCEPT_MSG:
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printf(" AVDTP_RESPONSE_ACCEPT_MSG: ");
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@ -802,7 +780,25 @@ static void handle_l2cap_data_packet_for_signaling_connection(avdtp_connection_t
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sep.in_use = 1;
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printf(" INT .. seid %d, configured services 0%02x\n", sep.seid, sep.configured_service_categories);
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// find or add sep
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// int i = 0;
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// int remote_sep_index = 0xFF;
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// for (i=0; i < stream_endpoint->remote_seps_num; i++){
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// if (stream_endpoint->remote_seps[i].seid == sep.seid){
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// remote_sep_index = i;
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// }
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// }
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// if (remote_sep_index != 0xFF){
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// stream_endpoint->remote_seps[remote_sep_index] = sep;
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// printf(" ACP: update seid %d \n", stream_endpoint->remote_seps[remote_sep_index].seid);
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// } else {
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// // add new
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// stream_endpoint->remote_seps_num++;
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// stream_endpoint->remote_seps[stream_endpoint->remote_seps_num] = sep;
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// printf(" ACP: add seid %d\n", stream_endpoint->remote_seps[stream_endpoint->remote_seps_num].seid);
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// }
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if (get_bit16(sep.configured_service_categories, AVDTP_MEDIA_CODEC)){
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printf(" AVDTP_SI_GET_CONFIGURATION 1 %d\n", sep.capabilities.media_codec.media_codec_type);
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switch (sep.capabilities.media_codec.media_codec_type){
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@ -974,16 +970,7 @@ static void handle_l2cap_data_packet_for_signaling_connection(avdtp_connection_t
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avdtp_signaling_emit_done(avdtp_sink_callback, connection->con_handle, 1);
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return;
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}
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if (request_to_send_now_self){
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avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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return;
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}
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if (call_acceptor_state_machine){
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if (avdtp_acceptor_stream_config_subsm(connection, stream_endpoint, packet, size, offset)){
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avdtp_sink_request_can_send_now_acceptor(connection, connection->l2cap_signaling_cid);
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}
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}
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printf(" handle_l2cap_data_packet_for_signaling_connection, signal %d not handled\n", connection->signaling_packet.signal_identifier);
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return;
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}
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@ -1486,4 +1473,3 @@ void avdtp_sink_reconfigure(uint16_t con_handle, uint8_t seid){
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avdtp_sink_request_can_send_now_self(connection, connection->l2cap_signaling_cid);
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}
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@ -147,7 +147,8 @@ int avdtp_pack_service_capabilities(uint8_t * buffer, int size, avdtp_capabiliti
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static int avdtp_unpack_service_capabilities_has_errors(avdtp_connection_t * connection, avdtp_service_category_t category, uint8_t cap_len){
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connection->error_code = 0;
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if (category == AVDTP_SERVICE_CATEGORY_INVALID_0 ){//|| category == AVDTP_SERVICE_CATEGORY_INVALID_FF){
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if (category == AVDTP_SERVICE_CATEGORY_INVALID_0 ||
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(category == AVDTP_SERVICE_CATEGORY_INVALID_FF && connection->signaling_packet.signal_identifier == AVDTP_SI_RECONFIGURE)){
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printf(" ERROR: BAD SERVICE CATEGORY %d\n", category);
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connection->reject_service_category = category;
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connection->error_code = BAD_SERV_CATEGORY;
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