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- /*
- * Copyright (c) 1983 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)interface.h 5.5 (Berkeley) 6/1/90
- */
-
- /*
- * Routing table management daemon.
- */
-
- /*
- * An ``interface'' is similar to an ifnet structure,
- * except it doesn't contain q'ing info, and it also
- * handles ``logical'' interfaces (remote gateways
- * that we want to keep polling even if they go down).
- * The list of interfaces which we maintain is used
- * in supplying the gratuitous routing table updates.
- * We list only one address for each interface, the AF_XNS one.
- */
- #define NIFADDR 3
- struct interface {
- struct interface *int_next;
- struct sockaddr int_addr; /* address on this host */
- union {
- struct sockaddr intu_broadaddr;
- struct sockaddr intu_dstaddr;
- } int_intu;
- #define int_broadaddr int_intu.intu_broadaddr /* broadcast address */
- #define int_dstaddr int_intu.intu_dstaddr /* other end of p-to-p link */
- int int_metric; /* init's routing entry */
- int int_flags; /* see below */
- struct ifdebug int_input, int_output; /* packet tracing stuff */
- int int_ipackets; /* input packets received */
- int int_opackets; /* output packets sent */
- char *int_name; /* from kernel if structure */
- u_short int_transitions; /* times gone up-down */
- /*XNS Specific entry */
- struct sameq {
- struct sameq *n; /* q of other pt-to-pt links */
- struct sameq *p; /* with same net # */
- } int_sq;
- };
-
- /*
- * 0x1 to 0x10 are reused from the kernel's ifnet definitions,
- * the others agree with the RTS_ flags defined elsewhere.
- */
- #define IFF_UP 0x1 /* interface is up */
- #define IFF_BROADCAST 0x2 /* broadcast address valid */
- #define IFF_DEBUG 0x4 /* turn on debugging */
- #define IFF_ROUTE 0x8 /* routing entry installed */
- #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
-
- #define IFF_PASSIVE 0x2000 /* can't tell if up/down */
- #define IFF_INTERFACE 0x4000 /* hardware interface */
- #define IFF_REMOTE 0x8000 /* interface isn't on this machine */
-
- struct interface *if_ifwithaddr();
- struct interface *if_ifwithdstaddr();
- struct interface *if_ifwithnet();
- struct interface *if_iflookup();
-