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Simon Redman 2023-06-27 11:44:54 +00:00 committed by Albert Vaca Cintora
parent 7ee85192c4
commit 1759a3f4f3
1 changed files with 1 additions and 1 deletions
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core/backends/lan/lanlinkprovider.cpp
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@ -213,7 +213,7 @@ void LanLinkProvider::sendUdpIdentityPacket(QUdpSocket &socket, const QList<QHos
for (auto &address : addresses) {
qint64 bytes = socket.writeDatagram(payload, address, m_udpBroadcastPort);
if (bytes == -1 && socket.error() == QAbstractSocket::DatagramTooLargeError) {
// On macOS and FreeBSD, UDP broadcasts larger than MTU get droped. See:
// On macOS and FreeBSD, UDP broadcasts larger than MTU get dropped. See:
// https://opensource.apple.com/source/xnu/xnu-3789.1.32/bsd/netinet/ip_output.c.auto.html#:~:text=/*%20don%27t%20allow%20broadcast%20messages%20to%20be%20fragmented%20*/
// We remove the capabilities to reduce the size of the packet.
// This should only happen for broadcasts, so UDP packets sent from MDNS discoveries should still work.