projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 5ff67f98 DF |
1 | /* |
| 2 | * Copyright (c) 1983 Regents of the University of California. | |
| 0eb85d71 | 3 | * All rights reserved. |
| 5ff67f98 | 4 | * |
| 0eb85d71 | 5 | * Redistribution and use in source and binary forms are permitted |
| ca67e7b4 C |
6 | * provided that this notice is preserved and that due credit is given |
| 7 | * to the University of California at Berkeley. The name of the University | |
| 8 | * may not be used to endorse or promote products derived from this | |
| 9 | * software without specific prior written permission. This software | |
| 10 | * is provided ``as is'' without express or implied warranty. | |
| 0eb85d71 | 11 | * |
| ca67e7b4 | 12 | * @(#)table.h 5.5 (Berkeley) 2/16/88 |
| 5ff67f98 | 13 | */ |
| d03054c7 SL |
14 | |
| 15 | /* | |
| 16 | * Routing table management daemon. | |
| 17 | */ | |
| 18 | ||
| 19 | /* | |
| 20 | * Routing table structure; differs a bit from kernel tables. | |
| 21 | * | |
| 22 | * Note: the union below must agree in the first 4 members | |
| 23 | * so the ioctl's will work. | |
| 24 | */ | |
| 25 | struct rthash { | |
| 26 | struct rt_entry *rt_forw; | |
| 27 | struct rt_entry *rt_back; | |
| 28 | }; | |
| 29 | ||
| 30 | struct rt_entry { | |
| 31 | struct rt_entry *rt_forw; | |
| 32 | struct rt_entry *rt_back; | |
| 33 | union { | |
| 34 | struct rtentry rtu_rt; | |
| 35 | struct { | |
| 36 | u_long rtu_hash; | |
| 37 | struct sockaddr rtu_dst; | |
| 38 | struct sockaddr rtu_router; | |
| 39 | short rtu_flags; | |
| 40 | short rtu_state; | |
| 41 | int rtu_timer; | |
| 42 | int rtu_metric; | |
| 88709531 | 43 | int rtu_ifmetric; |
| d03054c7 SL |
44 | struct interface *rtu_ifp; |
| 45 | } rtu_entry; | |
| 46 | } rt_rtu; | |
| 47 | }; | |
| 48 | ||
| 49 | #define rt_rt rt_rtu.rtu_rt /* pass to ioctl */ | |
| 50 | #define rt_hash rt_rtu.rtu_entry.rtu_hash /* for net or host */ | |
| 51 | #define rt_dst rt_rtu.rtu_entry.rtu_dst /* match value */ | |
| 52 | #define rt_router rt_rtu.rtu_entry.rtu_router /* who to forward to */ | |
| 53 | #define rt_flags rt_rtu.rtu_entry.rtu_flags /* kernel flags */ | |
| 54 | #define rt_timer rt_rtu.rtu_entry.rtu_timer /* for invalidation */ | |
| 55 | #define rt_state rt_rtu.rtu_entry.rtu_state /* see below */ | |
| 56 | #define rt_metric rt_rtu.rtu_entry.rtu_metric /* cost of route */ | |
| 88709531 | 57 | #define rt_ifmetric rt_rtu.rtu_entry.rtu_ifmetric /* cost of route if */ |
| d03054c7 SL |
58 | #define rt_ifp rt_rtu.rtu_entry.rtu_ifp /* interface to take */ |
| 59 | ||
| 49139b80 MK |
60 | #define ROUTEHASHSIZ 32 /* must be a power of 2 */ |
| 61 | #define ROUTEHASHMASK (ROUTEHASHSIZ - 1) | |
| d03054c7 SL |
62 | |
| 63 | /* | |
| 64 | * "State" of routing table entry. | |
| 65 | */ | |
| 66 | #define RTS_CHANGED 0x1 /* route has been altered recently */ | |
| 4fad5a6e MK |
67 | #define RTS_EXTERNAL 0x2 /* extern info, not installed or sent */ |
| 68 | #define RTS_INTERNAL 0x4 /* internal route, not installed */ | |
| b7e4f8be MK |
69 | #define RTS_PASSIVE IFF_PASSIVE /* don't time out route */ |
| 70 | #define RTS_INTERFACE IFF_INTERFACE /* route is for network interface */ | |
| 71 | #define RTS_REMOTE IFF_REMOTE /* route is for ``remote'' entity */ | |
| 4fad5a6e MK |
72 | #define RTS_SUBNET IFF_SUBNET /* route is for network subnet */ |
| 73 | ||
| 74 | /* | |
| 75 | * Flags are same as kernel, with this addition for af_rtflags: | |
| 76 | */ | |
| 77 | #define RTF_SUBNET 0x8000 /* pseudo: route to subnet */ | |
| d03054c7 SL |
78 | |
| 79 | struct rthash nethash[ROUTEHASHSIZ]; | |
| 80 | struct rthash hosthash[ROUTEHASHSIZ]; | |
| 81 | struct rt_entry *rtlookup(); | |
| 82 | struct rt_entry *rtfind(); |