rndis_host: set proper input size for OID_GEN_PHYSICAL_MEDIUM request

[ Upstream commit e56b3d94d939f52d46209b9e1b6700c5bfff3123 ]

MSFT ActiveSync implementation requires that the size of the response for
incoming query is to be provided in the request input length. Failure to
set the input size proper results in failed request transfer, where the
ActiveSync counterpart reports the NDIS_STATUS_INVALID_LENGTH (0xC0010014L)
error.

Set the input size for OID_GEN_PHYSICAL_MEDIUM query to the expected size
of the response in order for the ActiveSync to properly respond to the
request.

Fixes: 039ee17d1baa ("rndis_host: Add RNDIS physical medium checking into generic_rndis_bind()")
Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com>
Link: https://lore.kernel.org/r/20210108095839.3335-1-andrey.zhizhikin@leica-geosystems.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index b20b380d91bf67a51a284cfacc552010dde8f0fc..2b57bd8f0d720c276b7743f86cefb3c21b083cfe 100644 (file)
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -398,7 +398,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
        reply_len = sizeof *phym;
        retval = rndis_query(dev, intf, u.buf,
                             RNDIS_OID_GEN_PHYSICAL_MEDIUM,
-                            0, (void **) &phym, &reply_len);
+                            reply_len, (void **)&phym, &reply_len);
        if (retval != 0 || !phym) {
                /* OID is optional so don't fail here. */
                phym_unspec = cpu_to_le32(RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED);