usr/src/sys.386bsd/netinet/in_var.h

/*
 * Copyright (c) 1985, 1986 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)in_var.h    7.6 (Berkeley) 6/28/90
 */

/*
 * 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_ifp          ia_ifa.ifa_ifp
#define ia_flags        ia_ifa.ifa_flags
                                        /* ia_{,sub}net{,mask} in host order */
        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 subnet part */
        struct  in_addr ia_netbroadcast; /* to recognize net broadcasts */
        struct  in_ifaddr *ia_next;     /* next in list of internet addresses */
        struct  sockaddr_in ia_addr;    /* reserve space for interface name */
        struct  sockaddr_in ia_dstaddr; /* reserve space for broadcast addr */
#define ia_broadaddr    ia_dstaddr
        struct  sockaddr_in ia_sockmask; /* reserve space for general netmask */
};

struct  in_aliasreq {
        char    ifra_name[IFNAMSIZ];            /* if name, e.g. "en0" */
        struct  sockaddr_in ifra_addr;
        struct  sockaddr_in ifra_broadaddr;
#define ifra_dstaddr ifra_broadaddr
        struct  sockaddr_in ifra_mask;
};
/*
 * Given a pointer to an in_ifaddr (ifaddr),
 * return a pointer to the addr as a sockaddr_in.
 */
#define IA_SIN(ia) (&(((struct in_ifaddr *)(ia))->ia_addr))

#ifdef  KERNEL
struct  in_ifaddr *in_ifaddr;
struct  in_ifaddr *in_iaonnetof();
struct  ifqueue ipintrq;                /* ip packet input queue */
#endif