1*24327Ssklower /* 2*24327Ssklower * Copyright (c) 1983 Regents of the University of California. 3*24327Ssklower * All rights reserved. The Berkeley software License Agreement 4*24327Ssklower * specifies the terms and conditions for redistribution. 5*24327Ssklower * 6*24327Ssklower * @(#)interface.h 5.3 (Berkeley) 08/16/85"; 7*24327Ssklower */ 824308Ssklower 924308Ssklower /* 1024308Ssklower * Routing table management daemon. 1124308Ssklower */ 1224308Ssklower 1324308Ssklower /* 1424308Ssklower * An ``interface'' is similar to an ifnet structure, 1524308Ssklower * except it doesn't contain q'ing info, and it also 1624308Ssklower * handles ``logical'' interfaces (remote gateways 1724308Ssklower * that we want to keep polling even if they go down). 1824308Ssklower * The list of interfaces which we maintain is used 1924308Ssklower * in supplying the gratuitous routing table updates. 2024308Ssklower * We list only one address for each interface, the AF_XNS one. 2124308Ssklower */ 2224308Ssklower #define NIFADDR 3 2324308Ssklower struct interface { 2424308Ssklower struct interface *int_next; 2524308Ssklower struct sockaddr int_addr; /* address on this host */ 2624308Ssklower union { 2724308Ssklower struct sockaddr intu_broadaddr; 2824308Ssklower struct sockaddr intu_dstaddr; 2924308Ssklower } int_intu; 3024308Ssklower #define int_broadaddr int_intu.intu_broadaddr /* broadcast address */ 3124308Ssklower #define int_dstaddr int_intu.intu_dstaddr /* other end of p-to-p link */ 3224308Ssklower int int_metric; /* init's routing entry */ 3324308Ssklower int int_flags; /* see below */ 3424308Ssklower struct ifdebug int_input, int_output; /* packet tracing stuff */ 3524308Ssklower int int_ipackets; /* input packets received */ 3624308Ssklower int int_opackets; /* output packets sent */ 3724308Ssklower char *int_name; /* from kernel if structure */ 3824308Ssklower u_short int_transitions; /* times gone up-down */ 39*24327Ssklower /*XNS Specific entry */ 40*24327Ssklower struct sameq { 41*24327Ssklower struct sameq *n; /* q of other pt-to-pt links */ 42*24327Ssklower struct sameq *p; /* with same net # */ 43*24327Ssklower } int_sq; 4424308Ssklower }; 4524308Ssklower 4624308Ssklower /* 47*24327Ssklower * 0x1 to 0x10 are reused from the kernel's ifnet definitions, 4824308Ssklower * the others agree with the RTS_ flags defined elsewhere. 4924308Ssklower */ 5024308Ssklower #define IFF_UP 0x1 /* interface is up */ 5124308Ssklower #define IFF_BROADCAST 0x2 /* broadcast address valid */ 5224308Ssklower #define IFF_DEBUG 0x4 /* turn on debugging */ 5324308Ssklower #define IFF_ROUTE 0x8 /* routing entry installed */ 5424308Ssklower #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */ 5524308Ssklower 5624308Ssklower #define IFF_PASSIVE 0x2000 /* can't tell if up/down */ 5724308Ssklower #define IFF_INTERFACE 0x4000 /* hardware interface */ 5824308Ssklower #define IFF_REMOTE 0x8000 /* interface isn't on this machine */ 5924308Ssklower 6024308Ssklower struct interface *if_ifwithaddr(); 61*24327Ssklower struct interface *if_ifwithdstaddr(); 6224308Ssklower struct interface *if_ifwithnet(); 6324308Ssklower struct interface *if_iflookup(); 64