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in_var.h
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1992-07-29
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/*
* Copyright (c) 1985, 1986 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of California at Berkeley. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*
* @(#)in_var.h 7.2 (Berkeley) 12/7/87
*/
/*
* Interface address, Internet version. One of these structures
* is allocated for each interface with an Internet address.
* The ifaddr structure contains the protocol-independent part
* of the structure and is assumed to be first.
*/
struct in_ifaddr {
struct ifaddr ia_ifa; /* protocol-independent info */
#define ia_addr@ifa.ifa_addr
#define ia_broadaddr ia_ifa.ifa_broadaddr
#define ia_dstaddr ia_ifa.ifa_dstaddr
#define ia_ifp ia_ifa.ifa_ifp
u_long ia_net; /* network number of interface */
u_long ia_netmask; /* mask of net part */
u_long ia_subnet; /* subnet number, including net */
u_long ia_subnetmask; /* mask of net + subnet */
struct in_addr ia_netbroadcast; /* broadcast addr for (logical) net */
int ia_flags;
struct in_ifaddr *ia_next; /* next in list of internet addresses */
};
/*
* Given a pointer to an in_ifaddr (ifaddr),
* return a pointer to the addr as a sockadd_in.
*/
#define IA_SIN(ia) ((struct sockaddr_in *)(&((struct in_ifaddr *)ia)->ia_addr))
/*
* ia_flags
*/
#define IFA_ROUTE 0x01 /* routing entry installed */
#ifdef KERNEL
struct in_ifaddr *in_ifaddr;
struct in_ifaddr *in_iaonnetof();
struct ifqueue ipintrq; /* ip packet input queue */
#endif