| 207 |
mateuszvis |
1 |
/*!\file netinet/in_var.h
|
|
|
2 |
* IP interface address.
|
|
|
3 |
*/
|
|
|
4 |
|
|
|
5 |
/*
|
|
|
6 |
* Copyright (c) 1985, 1986, 1993
|
|
|
7 |
* The Regents of the University of California. All rights reserved.
|
|
|
8 |
*
|
|
|
9 |
* Redistribution and use in source and binary forms, with or without
|
|
|
10 |
* modification, are permitted provided that the following conditions
|
|
|
11 |
* are met:
|
|
|
12 |
* 1. Redistributions of source code must retain the above copyright
|
|
|
13 |
* notice, this list of conditions and the following disclaimer.
|
|
|
14 |
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
15 |
* notice, this list of conditions and the following disclaimer in the
|
|
|
16 |
* documentation and/or other materials provided with the distribution.
|
|
|
17 |
* 3. All advertising materials mentioning features or use of this software
|
|
|
18 |
* must display the following acknowledgement:
|
|
|
19 |
* This product includes software developed by the University of
|
|
|
20 |
* California, Berkeley and its contributors.
|
|
|
21 |
* 4. Neither the name of the University nor the names of its contributors
|
|
|
22 |
* may be used to endorse or promote products derived from this software
|
|
|
23 |
* without specific prior written permission.
|
|
|
24 |
*
|
|
|
25 |
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
|
26 |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
27 |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
28 |
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
|
29 |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
30 |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
31 |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
32 |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
33 |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
34 |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
35 |
* SUCH DAMAGE.
|
|
|
36 |
*
|
|
|
37 |
* @(#)in_var.h 8.2 (Berkeley) 1/9/95
|
|
|
38 |
* $Id: in_var.h,v 1.17 1996/03/14 16:59:19 fenner Exp $
|
|
|
39 |
*/
|
|
|
40 |
|
|
|
41 |
#ifndef __NETINET_IN_VAR_H
|
|
|
42 |
#define __NETINET_IN_VAR_H
|
|
|
43 |
|
|
|
44 |
#include <sys/queue.h>
|
|
|
45 |
|
|
|
46 |
/*
|
|
|
47 |
* Interface address, Internet version. One of these structures
|
|
|
48 |
* is allocated for each interface with an Internet address.
|
|
|
49 |
* The ifaddr structure contains the protocol-independent part
|
|
|
50 |
* of the structure and is assumed to be first.
|
|
|
51 |
*/
|
|
|
52 |
struct in_ifaddr {
|
|
|
53 |
struct ifaddr ia_ifa; /* protocol-independent info */
|
|
|
54 |
#define ia_ifp ia_ifa.ifa_ifp
|
|
|
55 |
#define ia_flags ia_ifa.ifa_flags
|
|
|
56 |
/* ia_{,sub}net{,mask} in host order */
|
|
|
57 |
u_long ia_net; /* network number of interface */
|
|
|
58 |
u_long ia_netmask; /* mask of net part */
|
|
|
59 |
u_long ia_subnet; /* subnet number, including net */
|
|
|
60 |
u_long ia_subnetmask; /* mask of subnet part */
|
|
|
61 |
struct in_addr ia_netbroadcast; /* to recognize net broadcasts */
|
|
|
62 |
struct in_ifaddr *ia_next; /* next in list of internet addresses */
|
|
|
63 |
struct sockaddr_in ia_addr; /* reserve space for interface name */
|
|
|
64 |
struct sockaddr_in ia_dstaddr; /* reserve space for broadcast addr */
|
|
|
65 |
#define ia_broadaddr ia_dstaddr
|
|
|
66 |
struct sockaddr_in ia_sockmask; /* reserve space for general netmask */
|
|
|
67 |
LIST_HEAD(in_multihead, in_multi) ia_multiaddrs;
|
|
|
68 |
/* list of multicast addresses */
|
|
|
69 |
};
|
|
|
70 |
|
|
|
71 |
struct in_aliasreq {
|
|
|
72 |
char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */
|
|
|
73 |
struct sockaddr_in ifra_addr;
|
|
|
74 |
struct sockaddr_in ifra_broadaddr;
|
|
|
75 |
#define ifra_dstaddr ifra_broadaddr
|
|
|
76 |
struct sockaddr_in ifra_mask;
|
|
|
77 |
};
|
|
|
78 |
/*
|
|
|
79 |
* Given a pointer to an in_ifaddr (ifaddr),
|
|
|
80 |
* return a pointer to the addr as a sockaddr_in.
|
|
|
81 |
*/
|
|
|
82 |
#define IA_SIN(ia) (&(((struct in_ifaddr *)(ia))->ia_addr))
|
|
|
83 |
#define IA_DSTSIN(ia) (&(((struct in_ifaddr *)(ia))->ia_dstaddr))
|
|
|
84 |
|
|
|
85 |
#define IN_LNAOF(in, ifa) \
|
|
|
86 |
((ntohl((in).s_addr) & ~((struct in_ifaddr *)(ifa)->ia_subnetmask))
|
|
|
87 |
|
|
|
88 |
|
|
|
89 |
/*
|
|
|
90 |
* This information should be part of the ifnet structure but we don't wish
|
|
|
91 |
* to change that - as it might break a number of things
|
|
|
92 |
*/
|
|
|
93 |
|
|
|
94 |
struct router_info {
|
|
|
95 |
struct ifnet *rti_ifp;
|
|
|
96 |
int rti_type; /* type of router which is querier on this interface */
|
|
|
97 |
int rti_time; /* # of slow timeouts since last old query */
|
|
|
98 |
struct router_info *rti_next;
|
|
|
99 |
};
|
|
|
100 |
|
|
|
101 |
/*
|
|
|
102 |
* Internet multicast address structure. There is one of these for each IP
|
|
|
103 |
* multicast group to which this host belongs on a given network interface.
|
|
|
104 |
* They are kept in a linked list, rooted in the interface's in_ifaddr
|
|
|
105 |
* structure.
|
|
|
106 |
*/
|
|
|
107 |
struct in_multi {
|
|
|
108 |
LIST_ENTRY(in_multi) inm_entry; /* list glue */
|
|
|
109 |
struct in_addr inm_addr; /* IP multicast address */
|
|
|
110 |
struct ifnet *inm_ifp; /* back pointer to ifnet */
|
|
|
111 |
struct in_ifaddr *inm_ia; /* back pointer to in_ifaddr */
|
|
|
112 |
u_int inm_refcount; /* no. membership claims by sockets */
|
|
|
113 |
u_int inm_timer; /* IGMP membership report timer */
|
|
|
114 |
u_int inm_state; /* state of the membership */
|
|
|
115 |
struct router_info *inm_rti; /* router info*/
|
|
|
116 |
};
|
|
|
117 |
|
|
|
118 |
#endif
|