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authorjamal <hadi@cyberus.ca>2009-10-19 02:17:56 +0000
committerDavid S. Miller <davem@davemloft.net>2009-10-19 23:22:49 -0700
commit7e75f93eda027d9f9e0203ee6ffd210ea92e98f3 (patch)
tree3e9df7c2456909f1afaf9d63716c34d769557e6c
parent7c734359d3504c869132166d159c7f0649f0ab34 (diff)
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>
-rw-r--r--include/linux/filter.h3
-rw-r--r--net/core/filter.c3
2 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 1354aaf6abbe..909193e25395 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -123,7 +123,8 @@ struct sock_fprog /* Required for SO_ATTACH_FILTER. */
#define SKF_AD_IFINDEX 8
#define SKF_AD_NLATTR 12
#define SKF_AD_NLATTR_NEST 16
-#define SKF_AD_MAX 20
+#define SKF_AD_MARK 20
+#define SKF_AD_MAX 24
#define SKF_NET_OFF (-0x100000)
#define SKF_LL_OFF (-0x200000)
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;