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scsi: fcoe: filter out frames from invalid vlans 

Any multicase address is set on all interfaces, the base interface
and any VLAN interfaces on top of this. So we might receive frames
which are not destined for us.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2016-10-13 15:11:00 +02:00 committed by Martin K. Petersen
parent f7e6ed0654
commit 5d5a51d205
1 changed files with 11 additions and 1 deletions
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12
drivers/scsi/fcoe/fcoe_ctlr.c
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@ -2754,11 +2754,21 @@ static int fcoe_ctlr_vn_recv(struct fcoe_ctlr *fip, struct sk_buff *skb)
struct fc_rport_priv rdata;
struct fcoe_rport frport;
} buf;
int rc;
int rc, vlan_id = 0;
fiph = (struct fip_header *)skb->data;
sub = fiph->fip_subcode;
if (fip->lp->vlan)
vlan_id = skb_vlan_tag_get_id(skb);
if (vlan_id && vlan_id != fip->lp->vlan) {
LIBFCOE_FIP_DBG(fip, "vn_recv drop frame sub %x vlan %d\n",
sub, vlan_id);
rc = -EAGAIN;
goto drop;
}
rc = fcoe_ctlr_vn_parse(fip, skb, &buf.rdata);
if (rc) {
LIBFCOE_FIP_DBG(fip, "vn_recv vn_parse error %d\n", rc);