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Annotation of 43BSDReno/sbin/XNSrouted/interface.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  *
                     19:  *     @(#)interface.h 5.5 (Berkeley) 6/1/90
                     20:  */
                     21: 
                     22: /*
                     23:  * Routing table management daemon.
                     24:  */
                     25: 
                     26: /*
                     27:  * An ``interface'' is similar to an ifnet structure,
                     28:  * except it doesn't contain q'ing info, and it also
                     29:  * handles ``logical'' interfaces (remote gateways
                     30:  * that we want to keep polling even if they go down).
                     31:  * The list of interfaces which we maintain is used
                     32:  * in supplying the gratuitous routing table updates.
                     33:  * We list only one address for  each interface, the AF_XNS one.
                     34:  */
                     35: #define NIFADDR 3
                     36: struct interface {
                     37:        struct  interface *int_next;
                     38:        struct  sockaddr int_addr;              /* address on this host */
                     39:        union {
                     40:                struct  sockaddr intu_broadaddr;
                     41:                struct  sockaddr intu_dstaddr;
                     42:        } int_intu;
                     43: #define        int_broadaddr   int_intu.intu_broadaddr /* broadcast address */
                     44: #define        int_dstaddr     int_intu.intu_dstaddr   /* other end of p-to-p link */
                     45:        int     int_metric;                     /* init's routing entry */
                     46:        int     int_flags;                      /* see below */
                     47:        struct  ifdebug int_input, int_output;  /* packet tracing stuff */
                     48:        int     int_ipackets;                   /* input packets received */
                     49:        int     int_opackets;                   /* output packets sent */
                     50:        char    *int_name;                      /* from kernel if structure */
                     51:        u_short int_transitions;                /* times gone up-down */
                     52: /*XNS Specific entry */
                     53:        struct  sameq {
                     54:                struct sameq *n;                /* q of other pt-to-pt links */
                     55:                struct sameq *p;                /* with same net # */
                     56:        }       int_sq;
                     57: };
                     58: 
                     59: /*
                     60:  * 0x1 to 0x10 are reused from the kernel's ifnet definitions,
                     61:  * the others agree with the RTS_ flags defined elsewhere.
                     62:  */
                     63: #define        IFF_UP          0x1             /* interface is up */
                     64: #define        IFF_BROADCAST   0x2             /* broadcast address valid */
                     65: #define        IFF_DEBUG       0x4             /* turn on debugging */
                     66: #define        IFF_ROUTE       0x8             /* routing entry installed */
                     67: #define        IFF_POINTOPOINT 0x10            /* interface is point-to-point link */
                     68: 
                     69: #define        IFF_PASSIVE     0x2000          /* can't tell if up/down */
                     70: #define        IFF_INTERFACE   0x4000          /* hardware interface */
                     71: #define        IFF_REMOTE      0x8000          /* interface isn't on this machine */
                     72: 
                     73: struct interface *if_ifwithaddr();
                     74: struct interface *if_ifwithdstaddr();
                     75: struct interface *if_ifwithnet();
                     76: struct interface *if_iflookup();

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