perf/scripts: Tuple was set from long in both branches in python_process_event()
[linux-2.6.git] / include / net / flow.h
1 /*
2  *
3  *      Generic internet FLOW.
4  *
5  */
6
7 #ifndef _NET_FLOW_H
8 #define _NET_FLOW_H
9
10 #include <linux/in6.h>
11 #include <asm/atomic.h>
12
13 struct flowi {
14         int     oif;
15         int     iif;
16         __u32   mark;
17
18         union {
19                 struct {
20                         __be32                  daddr;
21                         __be32                  saddr;
22                         __u8                    tos;
23                         __u8                    scope;
24                 } ip4_u;
25                 
26                 struct {
27                         struct in6_addr         daddr;
28                         struct in6_addr         saddr;
29                         __be32                  flowlabel;
30                 } ip6_u;
31
32                 struct {
33                         __le16                  daddr;
34                         __le16                  saddr;
35                         __u8                    scope;
36                 } dn_u;
37         } nl_u;
38 #define fld_dst         nl_u.dn_u.daddr
39 #define fld_src         nl_u.dn_u.saddr
40 #define fld_scope       nl_u.dn_u.scope
41 #define fl6_dst         nl_u.ip6_u.daddr
42 #define fl6_src         nl_u.ip6_u.saddr
43 #define fl6_flowlabel   nl_u.ip6_u.flowlabel
44 #define fl4_dst         nl_u.ip4_u.daddr
45 #define fl4_src         nl_u.ip4_u.saddr
46 #define fl4_tos         nl_u.ip4_u.tos
47 #define fl4_scope       nl_u.ip4_u.scope
48
49         __u8    proto;
50         __u8    flags;
51 #define FLOWI_FLAG_ANYSRC 0x01
52         union {
53                 struct {
54                         __be16  sport;
55                         __be16  dport;
56                 } ports;
57
58                 struct {
59                         __u8    type;
60                         __u8    code;
61                 } icmpt;
62
63                 struct {
64                         __le16  sport;
65                         __le16  dport;
66                 } dnports;
67
68                 __be32          spi;
69
70                 struct {
71                         __u8    type;
72                 } mht;
73         } uli_u;
74 #define fl_ip_sport     uli_u.ports.sport
75 #define fl_ip_dport     uli_u.ports.dport
76 #define fl_icmp_type    uli_u.icmpt.type
77 #define fl_icmp_code    uli_u.icmpt.code
78 #define fl_ipsec_spi    uli_u.spi
79 #define fl_mh_type      uli_u.mht.type
80         __u32           secid;  /* used by xfrm; see secid.txt */
81 } __attribute__((__aligned__(BITS_PER_LONG/8)));
82
83 #define FLOW_DIR_IN     0
84 #define FLOW_DIR_OUT    1
85 #define FLOW_DIR_FWD    2
86
87 struct net;
88 struct sock;
89 typedef int (*flow_resolve_t)(struct net *net, struct flowi *key, u16 family,
90                               u8 dir, void **objp, atomic_t **obj_refp);
91
92 extern void *flow_cache_lookup(struct net *net, struct flowi *key, u16 family,
93                                u8 dir, flow_resolve_t resolver);
94 extern void flow_cache_flush(void);
95 extern atomic_t flow_cache_genid;
96
97 static inline int flow_cache_uli_match(struct flowi *fl1, struct flowi *fl2)
98 {
99         return (fl1->proto == fl2->proto &&
100                 !memcmp(&fl1->uli_u, &fl2->uli_u, sizeof(fl1->uli_u)));
101 }
102
103 #endif