projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 0744dd00 ED |
1 | #ifndef _NET_FLOW_KEYS_H |
| 2 | #define _NET_FLOW_KEYS_H | |
| 3 | ||
| e0f31d84 GV |
4 | /* struct flow_keys: |
| 5 | * @src: source ip address in case of IPv4 | |
| 6 | * For IPv6 it contains 32bit hash of src address | |
| 7 | * @dst: destination ip address in case of IPv4 | |
| 8 | * For IPv6 it contains 32bit hash of dst address | |
| 9 | * @ports: port numbers of Transport header | |
| 10 | * port16[0]: src port number | |
| 11 | * port16[1]: dst port number | |
| 12 | * @thoff: Transport header offset | |
| 13 | * @n_proto: Network header protocol (eg. IPv4/IPv6) | |
| 14 | * @ip_proto: Transport header protocol (eg. TCP/UDP) | |
| 15 | * All the members, except thoff, are in network byte order. | |
| 16 | */ | |
| 0744dd00 | 17 | struct flow_keys { |
| 4d77d2b5 | 18 | /* (src,dst) must be grouped, in the same way than in IP header */ |
| 0744dd00 ED |
19 | __be32 src; |
| 20 | __be32 dst; | |
| 21 | union { | |
| 22 | __be32 ports; | |
| 23 | __be16 port16[2]; | |
| 24 | }; | |
| f4575d35 ED |
25 | u16 thoff; |
| 26 | __be16 n_proto; | |
| 27 | u8 ip_proto; | |
| 0744dd00 ED |
28 | }; |
| 29 | ||
| 690e36e7 | 30 | bool __skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow, |
| 453a940e | 31 | void *data, __be16 proto, int nhoff, int hlen); |
| 690e36e7 DM |
32 | static inline bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow) |
| 33 | { | |
| 453a940e | 34 | return __skb_flow_dissect(skb, flow, NULL, 0, 0, 0); |
| 690e36e7 DM |
35 | } |
| 36 | __be32 __skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto, | |
| 37 | void *data, int hlen_proto); | |
| 38 | static inline __be32 skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto) | |
| 39 | { | |
| 40 | return __skb_flow_get_ports(skb, thoff, ip_proto, NULL, 0); | |
| 41 | } | |
| 5ed20a68 | 42 | u32 flow_hash_from_keys(struct flow_keys *keys); |
| 56193d1b AD |
43 | unsigned int flow_get_hlen(const unsigned char *data, unsigned int max_len, |
| 44 | __be16 protocol); | |
| 0744dd00 | 45 | #endif |