2 * Copyright (c) 1985, 1986 Regents of the University of California.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
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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.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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33 * @(#)in_var.h 7.6 (Berkeley) 6/28/90
40 * Interface address, Internet version. One of these structures
41 * is allocated for each interface with an Internet address.
42 * The ifaddr structure contains the protocol-independent part
43 * of the structure and is assumed to be first.
46 struct ifaddr ia_ifa
; /* protocol-independent info */
47 #define ia_ifp ia_ifa.ifa_ifp
48 #define ia_flags ia_ifa.ifa_flags
49 /* ia_{,sub}net{,mask} in host order */
50 u_long ia_net
; /* network number of interface */
51 u_long ia_netmask
; /* mask of net part */
52 u_long ia_subnet
; /* subnet number, including net */
53 u_long ia_subnetmask
; /* mask of subnet part */
54 struct in_addr ia_netbroadcast
; /* to recognize net broadcasts */
55 struct in_ifaddr
*ia_next
; /* next in list of internet addresses */
56 struct sockaddr_in ia_addr
; /* reserve space for interface name */
57 struct sockaddr_in ia_dstaddr
; /* reserve space for broadcast addr */
58 #define ia_broadaddr ia_dstaddr
59 struct sockaddr_in ia_sockmask
; /* reserve space for general netmask */
63 char ifra_name
[IFNAMSIZ
]; /* if name, e.g. "en0" */
64 struct sockaddr_in ifra_addr
;
65 struct sockaddr_in ifra_broadaddr
;
66 #define ifra_dstaddr ifra_broadaddr
67 struct sockaddr_in ifra_mask
;
70 * Given a pointer to an in_ifaddr (ifaddr),
71 * return a pointer to the addr as a sockaddr_in.
73 #define IA_SIN(ia) (&(((struct in_ifaddr *)(ia))->ia_addr))
77 extern struct in_ifaddr
*in_ifaddr
;
78 extern struct ifqueue ipintrq
; /* ip packet input queue */
81 #endif /* !IN_VAR_H */