From: Michael Brown <mcb30@ipxe.org>
Date: Tue, 6 Sep 2022 18:30:51 +0000 (+0100)
Subject: usbnet: Accept mandatory USB_CDC_SET_ETHERNET_PACKET_FILTER request
X-Git-Tag: v7.2.0-rc0~75^2~7
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=954cbf7bb53476e99091f9c99a8014af2491f6ef;p=thirdparty%2Fqemu.git

usbnet: Accept mandatory USB_CDC_SET_ETHERNET_PACKET_FILTER request

The USB_CDC_SET_ETHERNET_PACKET_FILTER request is mandatory for
CDC-ECM devices.  Accept this request, ignoring the actual filter
value (to match the existing behaviour for RNDIS).

Signed-off-by: Michael Brown <mcb30@ipxe.org>
Message-Id: <20220906183053.3625472-3-mcb30@ipxe.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---

diff --git a/hw/usb/dev-network.c b/hw/usb/dev-network.c
index 61bf598870c..155df935cd6 100644
--- a/hw/usb/dev-network.c
+++ b/hw/usb/dev-network.c
@@ -1122,6 +1122,12 @@ static void usb_net_handle_control(USBDevice *dev, USBPacket *p,
 #endif
         break;
 
+    case ClassInterfaceOutRequest | USB_CDC_SET_ETHERNET_PACKET_FILTER:
+        if (is_rndis(s)) {
+            goto fail;
+        }
+        break;
+
     default:
     fail:
         fprintf(stderr, "usbnet: failed control transaction: "