diff options
| author | Ivan Solovev <ivan.solovev@qt.io> | 2025-09-22 11:47:14 +0200 |
|---|---|---|
| committer | Ivan Solovev <ivan.solovev@qt.io> | 2025-10-09 16:43:12 +0200 |
| commit | 83fc4ff9c20eb922113e08ba8566e077ce44dea3 (patch) | |
| tree | 61a399b1f23e06cba5d5fcb3e8eedbd30d3f1074 /src/network/socket/qabstractsocket.cpp | |
| parent | e9778dfe6ead0c4d704570816a56aead084a0263 (diff) | |
Allow binding a socket to a specific QNetworkInterface
For now, via a private API.
Provide a new socket engine option - BindInterfaceIndex, and use it if
a valid interface is passed to QAbstractSocketPrivate::bind().
Note that this feature is not fully functional on macOS:
both SO_BINDTODEVICE and IP{V6}_BOUND_IF only work for limiting
outgoing datagrams. The patch uses IP{V6}_BOUND_IF, because it allows
to avoid number -> string -> number conversion.
As of now, extra filtering of incoming data should be done on the user
side.
Task-number: QTBUG-80704
Task-number: QTBUG-139697
Pick-to: 6.10 6.8
Change-Id: Ic207908313d9d25f96c23ecc363181ff0ae8232a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Diffstat (limited to 'src/network/socket/qabstractsocket.cpp')
| -rw-r--r-- | src/network/socket/qabstractsocket.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/network/socket/qabstractsocket.cpp b/src/network/socket/qabstractsocket.cpp index ce3626304c8..f2474ad7e97 100644 --- a/src/network/socket/qabstractsocket.cpp +++ b/src/network/socket/qabstractsocket.cpp @@ -432,6 +432,7 @@ #include "qabstractsocket.h" #include "qabstractsocket_p.h" +#include "qnetworkinterface.h" #include "private/qhostinfo_p.h" @@ -1505,8 +1506,6 @@ bool QAbstractSocketPrivate::bind(const QHostAddress &address, quint16 port, QAb { Q_Q(QAbstractSocket); - Q_UNUSED(iface); // will be used in a follow-up patch - // now check if the socket engine is initialized and to the right type if (!socketEngine || !socketEngine->isValid()) { QHostAddress nullAddress; @@ -1538,6 +1537,10 @@ bool QAbstractSocketPrivate::bind(const QHostAddress &address, quint16 port, QAb socketEngine->setOption(QAbstractSocketEngine::BindExclusively, 0); #endif } +#if QT_CONFIG(networkinterface) + if (iface && iface->isValid()) + socketEngine->setOption(QAbstractSocketEngine::BindInterfaceIndex, iface->index()); +#endif bool result = socketEngine->bind(address, port); cachedSocketDescriptor = socketEngine->socketDescriptor(); |