diff options
| author | Stephen Hemminger <shemminger@vyatta.com> | 2008-02-05 03:20:13 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-02-05 03:20:13 -0800 |
| commit | 3113e88c3cb3c0a22920b621f8e4d1f2ccc07f1e (patch) | |
| tree | 241192a6492a5254cd1a2fb8fff8e87969ef0420 /net/sched/em_meta.c | |
| parent | dded91611a728d65721cdab3dd41d801a356fa15 (diff) | |
[PKT_SCHED]: vlan tag match
Provide a way to use tc filters on vlan tag even if tag is buried in
skb due to hardware acceleration.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/em_meta.c')
| -rw-r--r-- | net/sched/em_meta.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c index a1e5619b1876..9c2ec1992a2a 100644 --- a/net/sched/em_meta.c +++ b/net/sched/em_meta.c @@ -65,6 +65,7 @@ #include <linux/string.h> #include <linux/skbuff.h> #include <linux/random.h> +#include <linux/if_vlan.h> #include <linux/tc_ematch/tc_em_meta.h> #include <net/dst.h> #include <net/route.h> @@ -170,6 +171,21 @@ META_COLLECTOR(var_dev) } /************************************************************************** + * vlan tag + **************************************************************************/ + +META_COLLECTOR(int_vlan_tag) +{ + unsigned short tag; + if (vlan_get_tag(skb, &tag) < 0) + *err = -1; + else + dst->value = tag; +} + + + +/************************************************************************** * skb attributes **************************************************************************/ @@ -520,6 +536,7 @@ static struct meta_ops __meta_ops[TCF_META_TYPE_MAX+1][TCF_META_ID_MAX+1] = { [META_ID(SK_SNDTIMEO)] = META_FUNC(int_sk_sndtimeo), [META_ID(SK_SENDMSG_OFF)] = META_FUNC(int_sk_sendmsg_off), [META_ID(SK_WRITE_PENDING)] = META_FUNC(int_sk_write_pend), + [META_ID(VLAN_TAG)] = META_FUNC(int_vlan_tag), } }; |