diff options
Diffstat (limited to 'net/sched/cls_flow.c')
| -rw-r--r-- | net/sched/cls_flow.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c index 8d76986..971b867 100644 --- a/net/sched/cls_flow.c +++ b/net/sched/cls_flow.c @@ -19,6 +19,7 @@ #include <linux/in.h> #include <linux/ip.h> #include <linux/ipv6.h> +#include <linux/if_vlan.h> #include <net/pkt_cls.h> #include <net/ip.h> @@ -270,6 +271,15 @@ static u32 flow_get_skgid(const struct sk_buff *skb) return 0; } +static u32 flow_get_vlan_tag(const struct sk_buff *skb) +{ + u16 uninitialized_var(tag); + + if (vlan_get_tag(skb, &tag) < 0) + return 0; + return tag & VLAN_VID_MASK; +} + static u32 flow_key_get(const struct sk_buff *skb, int key) { switch (key) { @@ -305,6 +315,8 @@ static u32 flow_key_get(const struct sk_buff *skb, int key) return flow_get_skuid(skb); case FLOW_KEY_SKGID: return flow_get_skgid(skb); + case FLOW_KEY_VLAN_TAG: + return flow_get_vlan_tag(skb); default: WARN_ON(1); return 0; @@ -402,12 +414,13 @@ static int flow_change(struct tcf_proto *tp, unsigned long base, if (tb[TCA_FLOW_KEYS]) { keymask = nla_get_u32(tb[TCA_FLOW_KEYS]); - if (fls(keymask) - 1 > FLOW_KEY_MAX) - return -EOPNOTSUPP; nkeys = hweight32(keymask); if (nkeys == 0) return -EINVAL; + + if (fls(keymask) - 1 > FLOW_KEY_MAX) + return -EOPNOTSUPP; } err = tcf_exts_validate(tp, tb, tca[TCA_RATE], &e, &flow_ext_map); |