124327Ssklower /* 2*61474Sbostic * Copyright (c) 1983, 1993 3*61474Sbostic * The Regents of the University of California. All rights reserved. 424327Ssklower * 542698Sbostic * %sccs.include.redist.c% 635551Sbostic * 7*61474Sbostic * @(#)interface.h 8.1 (Berkeley) 06/05/93 824327Ssklower */ 924308Ssklower 1024308Ssklower /* 1124308Ssklower * Routing table management daemon. 1224308Ssklower */ 1324308Ssklower 1424308Ssklower /* 1524308Ssklower * An ``interface'' is similar to an ifnet structure, 1624308Ssklower * except it doesn't contain q'ing info, and it also 1724308Ssklower * handles ``logical'' interfaces (remote gateways 1824308Ssklower * that we want to keep polling even if they go down). 1924308Ssklower * The list of interfaces which we maintain is used 2024308Ssklower * in supplying the gratuitous routing table updates. 2124308Ssklower * We list only one address for each interface, the AF_XNS one. 2224308Ssklower */ 2324308Ssklower #define NIFADDR 3 2424308Ssklower struct interface { 2524308Ssklower struct interface *int_next; 2624308Ssklower struct sockaddr int_addr; /* address on this host */ 2724308Ssklower union { 2824308Ssklower struct sockaddr intu_broadaddr; 2924308Ssklower struct sockaddr intu_dstaddr; 3024308Ssklower } int_intu; 3124308Ssklower #define int_broadaddr int_intu.intu_broadaddr /* broadcast address */ 3224308Ssklower #define int_dstaddr int_intu.intu_dstaddr /* other end of p-to-p link */ 3324308Ssklower int int_metric; /* init's routing entry */ 3424308Ssklower int int_flags; /* see below */ 3524308Ssklower struct ifdebug int_input, int_output; /* packet tracing stuff */ 3624308Ssklower int int_ipackets; /* input packets received */ 3724308Ssklower int int_opackets; /* output packets sent */ 3824308Ssklower char *int_name; /* from kernel if structure */ 3924308Ssklower u_short int_transitions; /* times gone up-down */ 4024327Ssklower /*XNS Specific entry */ 4124327Ssklower struct sameq { 4224327Ssklower struct sameq *n; /* q of other pt-to-pt links */ 4324327Ssklower struct sameq *p; /* with same net # */ 4424327Ssklower } int_sq; 4524308Ssklower }; 4624308Ssklower 4724308Ssklower /* 4824327Ssklower * 0x1 to 0x10 are reused from the kernel's ifnet definitions, 4924308Ssklower * the others agree with the RTS_ flags defined elsewhere. 5024308Ssklower */ 5124308Ssklower #define IFF_UP 0x1 /* interface is up */ 5224308Ssklower #define IFF_BROADCAST 0x2 /* broadcast address valid */ 5324308Ssklower #define IFF_DEBUG 0x4 /* turn on debugging */ 5424308Ssklower #define IFF_ROUTE 0x8 /* routing entry installed */ 5524308Ssklower #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */ 5624308Ssklower 5724308Ssklower #define IFF_PASSIVE 0x2000 /* can't tell if up/down */ 5824308Ssklower #define IFF_INTERFACE 0x4000 /* hardware interface */ 5924308Ssklower #define IFF_REMOTE 0x8000 /* interface isn't on this machine */ 6024308Ssklower 6124308Ssklower struct interface *if_ifwithaddr(); 6224327Ssklower struct interface *if_ifwithdstaddr(); 6324308Ssklower struct interface *if_ifwithnet(); 6424308Ssklower struct interface *if_iflookup(); 65