Signed-off-by: Simon Rozman <[email protected]>
---
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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