diff options
Diffstat (limited to 'include/net/flow_keys.h')
| -rw-r--r-- | include/net/flow_keys.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/net/flow_keys.h b/include/net/flow_keys.h index 7e64bd8bbda9..6667a054763a 100644 --- a/include/net/flow_keys.h +++ b/include/net/flow_keys.h @@ -1,6 +1,19 @@ #ifndef _NET_FLOW_KEYS_H #define _NET_FLOW_KEYS_H +/* struct flow_keys: + * @src: source ip address in case of IPv4 + * For IPv6 it contains 32bit hash of src address + * @dst: destination ip address in case of IPv4 + * For IPv6 it contains 32bit hash of dst address + * @ports: port numbers of Transport header + * port16[0]: src port number + * port16[1]: dst port number + * @thoff: Transport header offset + * @n_proto: Network header protocol (eg. IPv4/IPv6) + * @ip_proto: Transport header protocol (eg. TCP/UDP) + * All the members, except thoff, are in network byte order. + */ struct flow_keys { /* (src,dst) must be grouped, in the same way than in IP header */ __be32 src; @@ -10,9 +23,11 @@ struct flow_keys { __be16 port16[2]; }; u16 thoff; + u16 n_proto; u8 ip_proto; }; bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow); __be32 skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto); +u32 flow_hash_from_keys(struct flow_keys *keys); #endif |