Built, tested - works as expected. Probably the first time I ran two VPN
tunnels with OpenVPN-GUI.
The code has an assumption, however, that "windows-driver" power over
"dev-node" -
if --dev-node is "OpenVPNWinTun" (for example) and "windows-driver" is not
specified, we bail out.
I would add something like "if you want to use this device, add
--windows-driver wintun" (and similar for tap)
to the error message - I think it is good to tell user how to proceed in
case of error(s).
Acked-by: Lev Stipakov
pe 20. jouluk. 2019 klo 0.40 Simon Rozman (si...@rozman.si) kirjoitti:
> Signed-off-by: Simon Rozman
> ---
> src/openvpn/tun.c | 38 --
> 1 file changed, 20 insertions(+), 18 deletions(-)
>
> diff --git a/src/openvpn/tun.c b/src/openvpn/tun.c
> index 9dc9b3a2..8508b9c0 100644
> --- a/src/openvpn/tun.c
> +++ b/src/openvpn/tun.c
> @@ -6194,7 +6194,6 @@ static void
> tun_open_device(struct tuntap *tt, const char *dev_node, const char
> **device_guid)
> {
> struct gc_arena gc = gc_new();
> -char tuntap_device_path[256];
> const struct tap_reg* tap_reg = get_tap_reg(&gc);
> const struct panel_reg* panel_reg = get_panel_reg(&gc);
> const struct device_instance_id_interface*
> device_instance_id_interface = get_device_instance_id_interface(&gc);
> @@ -6207,31 +6206,34 @@ tun_open_device(struct tuntap *tt, const char
> *dev_node, const char **device_gui
> */
> if (dev_node)
> {
> +bool is_picked_device_wintun = false;
> +
> /* Get the device GUID for the device specified with --dev-node.
> */
> -*device_guid = get_device_guid(dev_node, actual_buffer,
> sizeof(actual_buffer), NULL, tap_reg, panel_reg, &gc);
> +*device_guid = get_device_guid(dev_node, actual_buffer,
> sizeof(actual_buffer), &is_picked_device_wintun, tap_reg, panel_reg, &gc);
>
> if (!*device_guid)
> {
> -msg(M_FATAL, "TAP-Windows adapter '%s' not found", dev_node);
> +msg(M_FATAL, "Adapter '%s' not found", dev_node);
> }
>
> -/* Open Windows TAP-Windows adapter */
> -openvpn_snprintf(tuntap_device_path, sizeof(tuntap_device_path),
> "%s%s%s",
> - USERMODEDEVICEDIR,
> - *device_guid,
> - TAP_WIN_SUFFIX);
> -
> -tt->hand = CreateFile(tuntap_device_path,
> - GENERIC_READ | GENERIC_WRITE,
> - 0,/* was: FILE_SHARE_READ */
> - 0,
> - OPEN_EXISTING,
> - FILE_ATTRIBUTE_SYSTEM |
> FILE_FLAG_OVERLAPPED,
> - 0);
> +if (tt->wintun)
> +{
> +if (!is_picked_device_wintun)
> +{
> +msg(M_FATAL, "Adapter '%s' is TAP-Windows, Wintun
> expected", dev_node);
> +}
> +}
> +else
> +{
> +if (is_picked_device_wintun)
> +{
> +msg(M_FATAL, "Adapter '%s' is Wintun, TAP-Windows
> expected", dev_node);
> +}
> +}
>
> -if (tt->hand == INVALID_HANDLE_VALUE)
> +if (!tun_try_open_device(tt, *device_guid,
> device_instance_id_interface))
> {
> -msg(M_ERR, "CreateFile failed on TAP device: %s",
> tuntap_device_path);
> +msg(M_FATAL, "Failed to open %s adapter: %s", tt->wintun ?
> "Wintun" : "TAP-Windows", dev_node);
> }
> }
> else
> --
> 2.24.1.windows.2
>
>
>
> ___
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>
--
-Lev
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