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Improve VPN detection on Windows

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This commit is contained in:
Cameron Gutman 2019-12-07 16:00:03 -08:00
parent be33b5b387
commit 7205242f38
1 changed files with 18 additions and 2 deletions
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20
app/backend/nvcomputer.cpp
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@ -259,7 +259,7 @@ bool NvComputer::isReachableOverVpn()
for (const QNetworkAddressEntry& addr : nic.addressEntries()) {
if (addr.ip() == s.localAddress()) {
qInfo() << "Found matching interface:" << nic.humanReadableName() << nic.flags();
qInfo() << "Found matching interface:" << nic.humanReadableName() << nic.hardwareAddress() << nic.flags();
#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
qInfo() << "Interface Type:" << nic.type();
@ -278,7 +278,23 @@ bool NvComputer::isReachableOverVpn()
#endif
if (nic.flags() & QNetworkInterface::IsPointToPoint) {
// Treat point-to-point links as likely VPNs
// Treat point-to-point links as likely VPNs.
// This check detects OpenVPN on Unix-like OSes.
return true;
}
if (nic.hardwareAddress().startsWith("00:FF", Qt::CaseInsensitive)) {
// OpenVPN TAP interfaces have a MAC address starting with 00:FF on Windows
return true;
}
if (nic.humanReadableName().startsWith("ZeroTier")) {
// ZeroTier interfaces always start with "ZeroTier"
return true;
}
if (nic.humanReadableName().contains("VPN")) {
// This one is just a final heuristic if all else fails
return true;
}