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hv_netvsc: filter multicast/broadcast 

The netvsc driver was always enabling all multicast and broadcast
even if netdevice flag had not enabled it.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2018-03-02 13:49:08 -08:00 committed by David S. Miller
parent b3bf5666a5
commit 009f766ca2
1 changed files with 12 additions and 8 deletions
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20
drivers/net/hyperv/rndis_filter.c
View File

@ -854,15 +854,19 @@ static void rndis_set_multicast(struct work_struct *w)
{
struct rndis_device *rdev
= container_of(w, struct rndis_device, mcast_work);
u32 filter = NDIS_PACKET_TYPE_DIRECTED;
unsigned int flags = rdev->ndev->flags;
if (rdev->ndev->flags & IFF_PROMISC)
rndis_filter_set_packet_filter(rdev,
NDIS_PACKET_TYPE_PROMISCUOUS);
else
rndis_filter_set_packet_filter(rdev,
NDIS_PACKET_TYPE_BROADCAST |
NDIS_PACKET_TYPE_ALL_MULTICAST |
NDIS_PACKET_TYPE_DIRECTED);
if (flags & IFF_PROMISC) {
filter = NDIS_PACKET_TYPE_PROMISCUOUS;
} else {
if (flags & IFF_ALLMULTI)
flags |= NDIS_PACKET_TYPE_ALL_MULTICAST;
if (flags & IFF_BROADCAST)
flags |= NDIS_PACKET_TYPE_BROADCAST;
}
rndis_filter_set_packet_filter(rdev, filter);
}
void rndis_filter_update(struct netvsc_device *nvdev)