/********************************************************************** * Copyright (c) Digital Equipment Corporation 1984, 1985, 1986. * * All Rights Reserved. * * Reference "/usr/src/COPYRIGHT" for applicable restrictions. * **********************************************************************/ /* * Copyright (c) 1983 Regents of the University of California. * All rights reserved. The Berkeley software License Agreement * specifies the terms and conditions for redistribution. * * Based on @(#)interface.h 5.1 (Berkeley) 6/4/85 * @(#)setup.c 3.0 (ULTRIX-11) 4/22/86 */ /* * 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 */ #ifndef pdp11 int int_metric; /* init's routing entry */ #else pdp11 long int_metric; /* init's routing entry */ #endif pdp11 int int_flags; /* see below */ /* START INTERNET SPECIFIC */ u_long int_net; /* network # */ u_long int_netmask; /* net mask for addr */ #ifdef pdp11 #define int_subnet INTsnet #define int_subnetmask INTsnmsk #endif pdp11 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_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_ifwithnet(); struct interface *if_iflookup();