1 /* 2 * Copyright (c) 1982 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)in_var.h 6.2 (Berkeley) 06/08/85 7 */ 8 9 /* 10 * Interface address, internet version. One of these structures 11 * is allocated for each interface with an internet address. 12 * The ifaddr structure contains the protocol-independent part 13 * of the structure and is assumed to be first. 14 */ 15 struct in_ifaddr { 16 struct ifaddr ia_ifa; /* protocol-independent info */ 17 #define ia_addr ia_ifa.ifa_addr 18 #define ia_broadaddr ia_ifa.ifa_broadaddr 19 #define ia_dstaddr ia_ifa.ifa_dstaddr 20 #define ia_ifp ia_ifa.ifa_ifp 21 u_long ia_net; /* network number of interface */ 22 u_long ia_netmask; /* mask of net part */ 23 u_long ia_subnet; /* subnet number, including net */ 24 u_long ia_subnetmask; /* mask of net + subnet */ 25 int ia_flags; 26 struct in_ifaddr *ia_next; /* next in list of internet addresses */ 27 }; 28 /* 29 * Given a pointer to an in_ifaddr (ifaddr), 30 * return a pointer to the addr as a sockadd_in. 31 */ 32 #define IA_SIN(ia) ((struct sockaddr_in *)(&((struct in_ifaddr *)ia)->ia_addr)) 33 /* 34 * ia_flags 35 */ 36 #define IFA_ROUTE 0x01 /* routing entry installed */ 37 38 #ifdef KERNEL 39 extern struct in_ifaddr *in_ifaddr; 40 extern struct in_ifaddr *in_iaonnetof(); 41 #endif 42