diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2016-03-16 01:42:50 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-19 00:38:46 +0100 |
| commit | 808c1b697c3c4dd2a7132882424c390b0d0acfb9 (patch) | |
| tree | c43c9d8bd383b1c6063110c26c1ff495a37b5827 /include/net/dst.h | |
| parent | bpf: make skb->tc_classid also readable (diff) | |
| download | linux-808c1b697c3c4dd2a7132882424c390b0d0acfb9.tar.xz linux-808c1b697c3c4dd2a7132882424c390b0d0acfb9.zip | |
bpf, dst: add and use dst_tclassid helper
We can just add a small helper dst_tclassid() for retrieving the
dst->tclassid value. It makes the code a bit better in that we can
get rid of the ifdef from filter.c by moving this into the header.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/dst.h')
| -rw-r--r-- | include/net/dst.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index c7329dcd90cc..5c98443c1c9e 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -398,6 +398,18 @@ static inline void skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev, __skb_tunnel_rx(skb, dev, net); } +static inline u32 dst_tclassid(const struct sk_buff *skb) +{ +#ifdef CONFIG_IP_ROUTE_CLASSID + const struct dst_entry *dst; + + dst = skb_dst(skb); + if (dst) + return dst->tclassid; +#endif + return 0; +} + int dst_discard_out(struct net *net, struct sock *sk, struct sk_buff *skb); static inline int dst_discard(struct sk_buff *skb) { |