projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 3cec0c76 | 1 | /* defs.h 4.2 82/05/25 */ |
| b242391c SL |
2 | |
| 3 | /* | |
| 4 | * Internal data structure definitions for | |
| 5 | * user routing process. Based on Xerox NS | |
| 6 | * protocol specs with mods relevant to more | |
| 7 | * general addressing scheme. | |
| 8 | */ | |
| 3cec0c76 | 9 | #include <net/route.h> |
| b242391c SL |
10 | |
| 11 | /* | |
| 12 | * Internal routing table structure. | |
| 13 | * Differs a bit from kernel tables. | |
| 14 | */ | |
| 3cec0c76 | 15 | struct rthash { |
| b242391c SL |
16 | struct rt_entry *rt_forw; |
| 17 | struct rt_entry *rt_back; | |
| 18 | }; | |
| 19 | ||
| 20 | struct rt_entry { | |
| 21 | struct rt_entry *rt_forw; | |
| 22 | struct rt_entry *rt_back; | |
| 3cec0c76 SL |
23 | union { |
| 24 | struct rtentry rtu_rt; | |
| 25 | struct { | |
| 26 | u_long rtu_hash; | |
| 27 | struct sockaddr rtu_dst; | |
| 28 | struct sockaddr rtu_gateway; | |
| 29 | short rtu_flags; | |
| 30 | short rtu_retry; | |
| 31 | int rtu_timer; | |
| 32 | int rtu_metric; | |
| 33 | struct ifnet *rtu_ifp; | |
| 34 | } rtu_entry; | |
| 35 | } rt_rtu; | |
| b242391c SL |
36 | }; |
| 37 | ||
| 3cec0c76 SL |
38 | #define rt_rt rt_rtu.rtu_rt /* pass to ioctl */ |
| 39 | #define rt_hash rt_rtu.rtu_entry.rtu_hash /* for net or host */ | |
| 40 | #define rt_dst rt_rtu.rtu_entry.rtu_dst /* match value */ | |
| 41 | #define rt_gateway rt_rtu.rtu_entry.rtu_gateway /* who to forward to */ | |
| 42 | #define rt_flags rt_rtu.rtu_entry.rtu_flags /* see below */ | |
| 43 | #define rt_retry rt_rtu.rtu_entry.rtu_retry /* retries of ioctl */ | |
| 44 | #define rt_timer rt_rtu.rtu_entry.rtu_timer /* for invalidation */ | |
| 45 | #define rt_metric rt_rtu.rtu_entry.rtu_metric /* cost of route */ | |
| 46 | #define rt_ifp rt_rtu.rtu_entry.rtu_ifp /* interface to take */ | |
| 47 | ||
| b242391c SL |
48 | #define ROUTEHASHSIZ 19 |
| 49 | ||
| 50 | /* | |
| 51 | * Flags used by routing process are not | |
| 52 | * interpreted by kernel. | |
| 53 | */ | |
| 54 | #define RTF_DELRT 0x8 /* delete pending */ | |
| 55 | #define RTF_CHGRT 0x10 /* change command pending */ | |
| 56 | #define RTF_ADDRT 0x20 /* add command pending */ | |
| 57 | #define RTF_SILENT 0x40 /* don't send to router */ | |
| 58 | ||
| 3cec0c76 | 59 | struct rthash nethash[ROUTEHASHSIZ], hosthash[ROUTEHASHSIZ]; |
| b242391c SL |
60 | struct rt_entry *rtlookup(); |
| 61 | ||
| 62 | /* | |
| 63 | * Per address family routines. Hash returns hash key based | |
| 64 | * on address; netmatch verifies net # matching, output interprets | |
| 65 | * an address in preparation for sending; portmatch interprets | |
| 66 | * an address in verifying incoming packets were sent from the | |
| 67 | * appropriate port; checkhost is used to decide whether an | |
| 68 | * address is for a host, or for a network (e.g. broadcast); | |
| 69 | * canon purges any extraneous stuff from a sender's address | |
| 70 | * before pattern matching is performed (e.g. Internet ports). | |
| 71 | */ | |
| 72 | struct afswitch { | |
| 73 | int (*af_hash)(); | |
| 74 | int (*af_netmatch)(); | |
| 75 | int (*af_output)(); | |
| 76 | int (*af_portmatch)(); | |
| 77 | int (*af_checkhost)(); | |
| 78 | int (*af_canon)(); | |
| 79 | }; | |
| 80 | ||
| 81 | struct afhash { | |
| 82 | u_int afh_hosthash; | |
| 83 | u_int afh_nethash; | |
| 84 | }; | |
| 85 | ||
| 86 | struct afswitch afswitch[AF_MAX]; |