78ed81a3 |
1 | /* |
2 | * Copyright (c) 1983 The Regents of the University of California. |
3 | * All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * 1. Redistributions of source code must retain the above copyright |
9 | * notice, this list of conditions and the following disclaimer. |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
11 | * notice, this list of conditions and the following disclaimer in the |
12 | * documentation and/or other materials provided with the distribution. |
13 | * 3. All advertising materials mentioning features or use of this software |
14 | * must display the following acknowledgement: |
15 | * This product includes software developed by the University of |
16 | * California, Berkeley and its contributors. |
17 | * 4. Neither the name of the University nor the names of its contributors |
18 | * may be used to endorse or promote products derived from this software |
19 | * without specific prior written permission. |
20 | * |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
31 | * SUCH DAMAGE. |
32 | * |
33 | * @(#)interface.h 5.5 (Berkeley) 6/1/90 |
34 | */ |
35 | |
36 | /* |
37 | * Routing table management daemon. |
38 | */ |
39 | |
40 | /* |
41 | * An ``interface'' is similar to an ifnet structure, |
42 | * except it doesn't contain q'ing info, and it also |
43 | * handles ``logical'' interfaces (remote gateways |
44 | * that we want to keep polling even if they go down). |
45 | * The list of interfaces which we maintain is used |
46 | * in supplying the gratuitous routing table updates. |
47 | * We list only one address for each interface, the AF_XNS one. |
48 | */ |
49 | #define NIFADDR 3 |
50 | struct interface { |
51 | struct interface *int_next; |
52 | struct sockaddr int_addr; /* address on this host */ |
53 | union { |
54 | struct sockaddr intu_broadaddr; |
55 | struct sockaddr intu_dstaddr; |
56 | } int_intu; |
57 | #define int_broadaddr int_intu.intu_broadaddr /* broadcast address */ |
58 | #define int_dstaddr int_intu.intu_dstaddr /* other end of p-to-p link */ |
59 | int int_metric; /* init's routing entry */ |
60 | int int_flags; /* see below */ |
61 | struct ifdebug int_input, int_output; /* packet tracing stuff */ |
62 | int int_ipackets; /* input packets received */ |
63 | int int_opackets; /* output packets sent */ |
64 | char *int_name; /* from kernel if structure */ |
65 | u_short int_transitions; /* times gone up-down */ |
66 | /*XNS Specific entry */ |
67 | struct sameq { |
68 | struct sameq *n; /* q of other pt-to-pt links */ |
69 | struct sameq *p; /* with same net # */ |
70 | } int_sq; |
71 | }; |
72 | |
73 | /* |
74 | * 0x1 to 0x10 are reused from the kernel's ifnet definitions, |
75 | * the others agree with the RTS_ flags defined elsewhere. |
76 | */ |
77 | #define IFF_UP 0x1 /* interface is up */ |
78 | #define IFF_BROADCAST 0x2 /* broadcast address valid */ |
79 | #define IFF_DEBUG 0x4 /* turn on debugging */ |
80 | #define IFF_ROUTE 0x8 /* routing entry installed */ |
81 | #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */ |
82 | |
83 | #define IFF_PASSIVE 0x2000 /* can't tell if up/down */ |
84 | #define IFF_INTERFACE 0x4000 /* hardware interface */ |
85 | #define IFF_REMOTE 0x8000 /* interface isn't on this machine */ |
86 | |
87 | struct interface *if_ifwithaddr(); |
88 | struct interface *if_ifwithdstaddr(); |
89 | struct interface *if_ifwithnet(); |
90 | struct interface *if_iflookup(); |