Commit | Line | Data |
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5ff67f98 DF |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | * | |
4fad5a6e | 6 | * @(#)table.h 5.2 (Berkeley) %G% |
5ff67f98 | 7 | */ |
d03054c7 SL |
8 | |
9 | /* | |
10 | * Routing table management daemon. | |
11 | */ | |
12 | ||
13 | /* | |
14 | * Routing table structure; differs a bit from kernel tables. | |
15 | * | |
16 | * Note: the union below must agree in the first 4 members | |
17 | * so the ioctl's will work. | |
18 | */ | |
19 | struct rthash { | |
20 | struct rt_entry *rt_forw; | |
21 | struct rt_entry *rt_back; | |
22 | }; | |
23 | ||
24 | struct rt_entry { | |
25 | struct rt_entry *rt_forw; | |
26 | struct rt_entry *rt_back; | |
27 | union { | |
28 | struct rtentry rtu_rt; | |
29 | struct { | |
30 | u_long rtu_hash; | |
31 | struct sockaddr rtu_dst; | |
32 | struct sockaddr rtu_router; | |
33 | short rtu_flags; | |
34 | short rtu_state; | |
35 | int rtu_timer; | |
36 | int rtu_metric; | |
37 | struct interface *rtu_ifp; | |
38 | } rtu_entry; | |
39 | } rt_rtu; | |
40 | }; | |
41 | ||
42 | #define rt_rt rt_rtu.rtu_rt /* pass to ioctl */ | |
43 | #define rt_hash rt_rtu.rtu_entry.rtu_hash /* for net or host */ | |
44 | #define rt_dst rt_rtu.rtu_entry.rtu_dst /* match value */ | |
45 | #define rt_router rt_rtu.rtu_entry.rtu_router /* who to forward to */ | |
46 | #define rt_flags rt_rtu.rtu_entry.rtu_flags /* kernel flags */ | |
47 | #define rt_timer rt_rtu.rtu_entry.rtu_timer /* for invalidation */ | |
48 | #define rt_state rt_rtu.rtu_entry.rtu_state /* see below */ | |
49 | #define rt_metric rt_rtu.rtu_entry.rtu_metric /* cost of route */ | |
50 | #define rt_ifp rt_rtu.rtu_entry.rtu_ifp /* interface to take */ | |
51 | ||
49139b80 MK |
52 | #define ROUTEHASHSIZ 32 /* must be a power of 2 */ |
53 | #define ROUTEHASHMASK (ROUTEHASHSIZ - 1) | |
d03054c7 SL |
54 | |
55 | /* | |
56 | * "State" of routing table entry. | |
57 | */ | |
58 | #define RTS_CHANGED 0x1 /* route has been altered recently */ | |
4fad5a6e MK |
59 | #define RTS_EXTERNAL 0x2 /* extern info, not installed or sent */ |
60 | #define RTS_INTERNAL 0x4 /* internal route, not installed */ | |
b7e4f8be MK |
61 | #define RTS_PASSIVE IFF_PASSIVE /* don't time out route */ |
62 | #define RTS_INTERFACE IFF_INTERFACE /* route is for network interface */ | |
63 | #define RTS_REMOTE IFF_REMOTE /* route is for ``remote'' entity */ | |
4fad5a6e MK |
64 | #define RTS_SUBNET IFF_SUBNET /* route is for network subnet */ |
65 | ||
66 | /* | |
67 | * Flags are same as kernel, with this addition for af_rtflags: | |
68 | */ | |
69 | #define RTF_SUBNET 0x8000 /* pseudo: route to subnet */ | |
d03054c7 SL |
70 | |
71 | struct rthash nethash[ROUTEHASHSIZ]; | |
72 | struct rthash hosthash[ROUTEHASHSIZ]; | |
73 | struct rt_entry *rtlookup(); | |
74 | struct rt_entry *rtfind(); |