/* * Copyright (c) 1983, 1993 * 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. * * from: @(#)interface.h 8.1 (Berkeley) 6/5/93 * $Id: interface.h,v 1.6 1994/05/13 08:04:41 mycroft Exp $ */ /* * 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. */ 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 */ /* START INTERNET SPECIFIC */ u_long int_net; /* network # */ u_long int_netmask; /* net mask for addr */ u_long int_subnet; /* subnet # */ u_long int_subnetmask; /* subnet mask for addr */ /* END INTERNET SPECIFIC */ 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 */ }; /* * 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_LOOPBACK 0x8 /* software loopback net */ #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */ #define IFF_SUBNET 0x100000 /* interface on subnetted network */ #define IFF_PASSIVE 0x200000 /* can't tell if up/down */ #define IFF_INTERFACE 0x400000 /* hardware interface */ #define IFF_REMOTE 0x800000 /* interface isn't on this machine */ struct interface *if_ifwithaddr(); struct interface *if_ifwithdstaddr(); struct interface *if_ifwithnet(); struct interface *if_iflookup();