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avrcp_target: check data of AVRCP_PDU_ID_ADD_TO_NOW_PLAYING packet

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This commit is contained in:
Milanka Ringwald 2025-01-24 10:32:43 +01:00
parent fa94f75dc6
commit 5933f6e8c6
1 changed files with 14 additions and 2 deletions
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16
src/classic/avrcp_target.c
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@ -1075,6 +1075,7 @@ static void avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connec
uint8_t operand;
uint16_t event_mask;
avrcp_operation_id_t operation_id;
uint16_t uid_counter;
switch (opcode){
case AVRCP_CMD_OPCODE_UNIT_INFO:
@ -1139,13 +1140,24 @@ static void avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connec
}
connection->target_scope = packet[pos++];
if (connection->target_scope >= AVRCP_BROWSING_RFU){
avrcp_target_vendor_dependent_response_accept(connection, pdu_id, AVRCP_STATUS_INVALID_PARAMETER);
avrcp_target_response_vendor_dependent_reject(connection, pdu_id, AVRCP_STATUS_INVALID_PARAMETER);
return;
}
// The CT shall not send an AddToNowPlaying command with the scope set to Media Player List
if (connection->target_scope == AVRCP_BROWSING_MEDIA_PLAYER_LIST){
avrcp_target_response_vendor_dependent_reject(connection, pdu_id, AVRCP_STATUS_INVALID_SCOPE);
return;
}
memcpy(connection->target_track_id, &packet[pos], 8);
pos += 8;
connection->target_uid_counter = big_endian_read_16(packet,pos);
uid_counter = big_endian_read_16(packet,pos);
if (connection->target_uid_counter != uid_counter){
avrcp_target_response_vendor_dependent_reject(connection, pdu_id, AVRCP_STATUS_PARAMETER_CONTENT_ERROR);
return;
}
connection->state = AVCTP_W2_CHECK_DATABASE;
avrcp_target_emit_add_to_now_playing_item(avrcp_target_context.avrcp_callback, connection->avrcp_cid, connection->target_uid_counter, connection->target_scope,connection->target_track_id);
break;