diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2016-03-16 01:42:50 +0100 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2022-04-19 00:50:10 +0300 |
| commit | 49d7a6877aebde96cdc7f369facb260b4ebc6ce5 (patch) | |
| tree | 16f5ff0f109c0e5ab78fe1dbc2cbde375b1029ea | |
| parent | 1c4f960f2e7c97d21861c0132159f190adb2149e (diff) | |
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>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
| -rw-r--r-- | include/net/dst.h | 12 | ||||
| -rw-r--r-- | net/core/filter.c | 9 |
2 files changed, 13 insertions, 8 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index dc1f26da3c61..1daa9e2a1b46 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -404,6 +404,18 @@ 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) { diff --git a/net/core/filter.c b/net/core/filter.c index cf0bad6aca3a..22a008313b73 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -1692,14 +1692,7 @@ static const struct bpf_func_proto bpf_get_cgroup_classid_proto = { static u64 bpf_get_route_realm(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5) { -#ifdef CONFIG_IP_ROUTE_CLASSID - const struct dst_entry *dst; - - dst = skb_dst((struct sk_buff *) (unsigned long) r1); - if (dst) - return dst->tclassid; -#endif - return 0; + return dst_tclassid((struct sk_buff *) (unsigned long) r1); } static const struct bpf_func_proto bpf_get_route_realm_proto = { |