diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/net/flow.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/net/flow.h')
-rw-r--r-- | include/net/flow.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/include/net/flow.h b/include/net/flow.h new file mode 100644 index 000000000000..9a5c94b1a0ec --- /dev/null +++ b/include/net/flow.h | |||
@@ -0,0 +1,95 @@ | |||
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 | |||
17 | union { | ||
18 | struct { | ||
19 | __u32 daddr; | ||
20 | __u32 saddr; | ||
21 | __u32 fwmark; | ||
22 | __u8 tos; | ||
23 | __u8 scope; | ||
24 | } ip4_u; | ||
25 | |||
26 | struct { | ||
27 | struct in6_addr daddr; | ||
28 | struct in6_addr saddr; | ||
29 | __u32 flowlabel; | ||
30 | } ip6_u; | ||
31 | |||
32 | struct { | ||
33 | __u16 daddr; | ||
34 | __u16 saddr; | ||
35 | __u32 fwmark; | ||
36 | __u8 scope; | ||
37 | } dn_u; | ||
38 | } nl_u; | ||
39 | #define fld_dst nl_u.dn_u.daddr | ||
40 | #define fld_src nl_u.dn_u.saddr | ||
41 | #define fld_fwmark nl_u.dn_u.fwmark | ||
42 | #define fld_scope nl_u.dn_u.scope | ||
43 | #define fl6_dst nl_u.ip6_u.daddr | ||
44 | #define fl6_src nl_u.ip6_u.saddr | ||
45 | #define fl6_flowlabel nl_u.ip6_u.flowlabel | ||
46 | #define fl4_dst nl_u.ip4_u.daddr | ||
47 | #define fl4_src nl_u.ip4_u.saddr | ||
48 | #define fl4_fwmark nl_u.ip4_u.fwmark | ||
49 | #define fl4_tos nl_u.ip4_u.tos | ||
50 | #define fl4_scope nl_u.ip4_u.scope | ||
51 | |||
52 | __u8 proto; | ||
53 | __u8 flags; | ||
54 | #define FLOWI_FLAG_MULTIPATHOLDROUTE 0x01 | ||
55 | union { | ||
56 | struct { | ||
57 | __u16 sport; | ||
58 | __u16 dport; | ||
59 | } ports; | ||
60 | |||
61 | struct { | ||
62 | __u8 type; | ||
63 | __u8 code; | ||
64 | } icmpt; | ||
65 | |||
66 | struct { | ||
67 | __u16 sport; | ||
68 | __u16 dport; | ||
69 | __u8 objnum; | ||
70 | __u8 objnamel; /* Not 16 bits since max val is 16 */ | ||
71 | __u8 objname[16]; /* Not zero terminated */ | ||
72 | } dnports; | ||
73 | |||
74 | __u32 spi; | ||
75 | } uli_u; | ||
76 | #define fl_ip_sport uli_u.ports.sport | ||
77 | #define fl_ip_dport uli_u.ports.dport | ||
78 | #define fl_icmp_type uli_u.icmpt.type | ||
79 | #define fl_icmp_code uli_u.icmpt.code | ||
80 | #define fl_ipsec_spi uli_u.spi | ||
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 | typedef void (*flow_resolve_t)(struct flowi *key, u16 family, u8 dir, | ||
88 | void **objp, atomic_t **obj_refp); | ||
89 | |||
90 | extern void *flow_cache_lookup(struct flowi *key, u16 family, u8 dir, | ||
91 | flow_resolve_t resolver); | ||
92 | extern void flow_cache_flush(void); | ||
93 | extern atomic_t flow_cache_genid; | ||
94 | |||
95 | #endif | ||