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Annotation of 42BSD/etc/routed/table.h, revision 1.1.1.1

1.1       root        1: /*     table.h 4.1     83/01/11        */
                      2: 
                      3: /*
                      4:  * Routing table management daemon.
                      5:  */
                      6: 
                      7: /*
                      8:  * Routing table structure; differs a bit from kernel tables.
                      9:  *
                     10:  * Note: the union below must agree in the first 4 members
                     11:  * so the ioctl's will work.
                     12:  */
                     13: struct rthash {
                     14:        struct  rt_entry *rt_forw;
                     15:        struct  rt_entry *rt_back;
                     16: };
                     17: 
                     18: struct rt_entry {
                     19:        struct  rt_entry *rt_forw;
                     20:        struct  rt_entry *rt_back;
                     21:        union {
                     22:                struct  rtentry rtu_rt;
                     23:                struct {
                     24:                        u_long  rtu_hash;
                     25:                        struct  sockaddr rtu_dst;
                     26:                        struct  sockaddr rtu_router;
                     27:                        short   rtu_flags;
                     28:                        short   rtu_state;
                     29:                        int     rtu_timer;
                     30:                        int     rtu_metric;
                     31:                        struct  interface *rtu_ifp;
                     32:                } rtu_entry;
                     33:        } rt_rtu;
                     34: };
                     35: 
                     36: #define        rt_rt           rt_rtu.rtu_rt                   /* pass to ioctl */
                     37: #define        rt_hash         rt_rtu.rtu_entry.rtu_hash       /* for net or host */
                     38: #define        rt_dst          rt_rtu.rtu_entry.rtu_dst        /* match value */
                     39: #define        rt_router       rt_rtu.rtu_entry.rtu_router     /* who to forward to */
                     40: #define        rt_flags        rt_rtu.rtu_entry.rtu_flags      /* kernel flags */
                     41: #define        rt_timer        rt_rtu.rtu_entry.rtu_timer      /* for invalidation */
                     42: #define        rt_state        rt_rtu.rtu_entry.rtu_state      /* see below */
                     43: #define        rt_metric       rt_rtu.rtu_entry.rtu_metric     /* cost of route */
                     44: #define        rt_ifp          rt_rtu.rtu_entry.rtu_ifp        /* interface to take */
                     45: 
                     46: #define        ROUTEHASHSIZ    19
                     47: 
                     48: /*
                     49:  * "State" of routing table entry.
                     50:  */
                     51: #define        RTS_CHANGED     0x1             /* route has been altered recently */
                     52: #define        RTS_PASSIVE     0x20            /* don't time out route */
                     53: #define        RTS_INTERFACE   0x40            /* route is for network interface */
                     54: #define        RTS_REMOTE      0x80            /* route is for ``remote'' entity */
                     55: 
                     56: struct rthash nethash[ROUTEHASHSIZ];
                     57: struct rthash hosthash[ROUTEHASHSIZ];
                     58: struct rt_entry *rtlookup();
                     59: struct rt_entry *rtfind();

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