diff options
| author | Ivan Solovev <ivan.solovev@qt.io> | 2025-09-24 16:30:24 +0200 |
|---|---|---|
| committer | Ivan Solovev <ivan.solovev@qt.io> | 2025-10-09 16:43:12 +0200 |
| commit | e0c0b7cab2bbbec4ae6f5c9e55c949fd05ee4c64 (patch) | |
| tree | 7800322eeee75a3347cdfcc3ffcbfec8d04f8c67 /src/network/socket/qnativesocketengine_unix.cpp | |
| parent | 4ce110c50c7c2511626e79ad2d2270537c5ac279 (diff) | |
QNativeSocketEngine: enable dual-stack as early as possible
Try to disable the IPV6_V6ONLY socket option right after creating the
socket.
This is important, because it can affect how setting other options works.
For example, on Windows we could not properly set the
ReceivePacketInformation option before calling bind()/connectToHost().
If we're actually binding/connecting to an IPv6 address, then the
pre-existing code in nativeBind()/nativeConnect() would take care of
adjusting the option again.
Task-number: QTBUG-80704
Task-number: QTBUG-139697
Pick-to: 6.10 6.8
Change-Id: I6d504d354f63f441c90df21f933fd800fafa655f
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/network/socket/qnativesocketengine_unix.cpp')
| -rw-r--r-- | src/network/socket/qnativesocketengine_unix.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/network/socket/qnativesocketengine_unix.cpp b/src/network/socket/qnativesocketengine_unix.cpp index 0671854ccee..a9bc2d92b44 100644 --- a/src/network/socket/qnativesocketengine_unix.cpp +++ b/src/network/socket/qnativesocketengine_unix.cpp @@ -236,6 +236,20 @@ bool QNativeSocketEnginePrivate::createNewSocket(QAbstractSocket::SocketType soc return false; } + // Attempt to enable dual-stack + if (domain == AF_INET6) { + const int ipv6only = 0; + [[maybe_unused]] const int ret = ::setsockopt(socket, IPPROTO_IPV6, IPV6_V6ONLY, + &ipv6only, sizeof(ipv6only)); +#if defined (QNATIVESOCKETENGINE_DEBUG) + if (ret != 0) { + qDebug("QNativeSocketEnginePrivate::createNewSocket(%d, %d): " + "failed to set IPV6_V6ONLY to %d.", + socketType, socketProtocol, ipv6only); + } +#endif + } + #if defined (QNATIVESOCKETENGINE_DEBUG) qDebug("QNativeSocketEnginePrivate::createNewSocket(%d, %d) == true", socketType, socketProtocol); |