diff options
Diffstat (limited to 'windows')
| -rw-r--r-- | windows/winnet/src/winnet/routing/helpers.cpp | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/windows/winnet/src/winnet/routing/helpers.cpp b/windows/winnet/src/winnet/routing/helpers.cpp index 9e46b203d4..20b1f942c4 100644 --- a/windows/winnet/src/winnet/routing/helpers.cpp +++ b/windows/winnet/src/winnet/routing/helpers.cpp @@ -9,17 +9,43 @@ namespace { +// Interface description substrings found for virtual adapters. +const wchar_t *TUNNEL_INTERFACE_DESCS[] = { + L"WireGuard", + L"TAP Adapter" +}; + bool IsRouteOnPhysicalInterface(const MIB_IPFORWARD_ROW2 &route) { switch (route.InterfaceLuid.Info.IfType) { case IF_TYPE_SOFTWARE_LOOPBACK: case IF_TYPE_TUNNEL: - case IF_TYPE_PROP_VIRTUAL: { return false; } } + + // OpenVPN uses interface type IF_TYPE_PROP_VIRTUAL, + // but tethering etc. may rely on virtual adapters too, + // so we have to filter out the TAP adapter specifically. + + MIB_IF_ROW2 row = { 0 }; + row.InterfaceLuid = route.InterfaceLuid; + + if (NO_ERROR != GetIfEntry2(&row)) + { + THROW_ERROR("Cannot obtain interface information for the given route"); + } + + for (size_t i = 0; i < ARRAYSIZE(TUNNEL_INTERFACE_DESCS); i++) + { + if (nullptr != wcsstr(row.Description, TUNNEL_INTERFACE_DESCS[i])) + { + return false; + } + } + return true; } |