pkt_sched: ingress socket filter by mark

Allow bpf to set a filter to drop packets that dont
match a specific mark

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/core/filter.c b/net/core/filter.c
index d1d779ca096d..e3987e1d4839 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -303,6 +303,9 @@ load_b:
                 case SKF_AD_IFINDEX:
                         A = skb->dev->ifindex;
                         continue;
+                case SKF_AD_MARK:
+                        A = skb->mark;
+                        continue;
                 case SKF_AD_NLATTR: {
                         struct nlattr *nla;