diff options
| author | Jamal Hadi Salim <jhs@mojatatu.com> | 2016-07-02 06:43:14 -0400 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2022-04-19 00:51:36 +0300 |
| commit | 86c651d631b89084f7bc5925c73091f8fbb0e630 (patch) | |
| tree | a69bb7e0491408ef8a975391aead1e1f5d6ae3e6 /include/linux | |
| parent | 7c2ad1220f8fb6b6c77a5324979e4756d202f995 (diff) | |
net: simplify and make pkt_type_ok() available for other users
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/skbuff.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 172c2d3fd654..4f2933707b13 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -37,6 +37,7 @@ #include <net/flow_dissector.h> #include <linux/splice.h> #include <linux/in6.h> +#include <linux/if_packet.h> #include <net/flow.h> /* A. Checksumming of received packets by device. @@ -809,6 +810,15 @@ static inline struct rtable *skb_rtable(const struct sk_buff *skb) return (struct rtable *)skb_dst(skb); } +/* For mangling skb->pkt_type from user space side from applications + * such as nft, tc, etc, we only allow a conservative subset of + * possible pkt_types to be set. +*/ +static inline bool skb_pkt_type_ok(u32 ptype) +{ + return ptype <= PACKET_OTHERHOST; +} + void kfree_skb(struct sk_buff *skb); void kfree_skb_list(struct sk_buff *segs); void skb_tx_error(struct sk_buff *skb); |