| 0,0 → 1,118 |
|---|
| /*!\file netinet/in_var.h |
| * IP interface address. |
| */ |
| |
| /* |
| * Copyright (c) 1985, 1986, 1993 |
| * The 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 8.2 (Berkeley) 1/9/95 |
| * $Id: in_var.h,v 1.17 1996/03/14 16:59:19 fenner Exp $ |
| */ |
| |
| #ifndef __NETINET_IN_VAR_H |
| #define __NETINET_IN_VAR_H |
| |
| #include <sys/queue.h> |
| |
| /* |
| * 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 */ |
| LIST_HEAD(in_multihead, in_multi) ia_multiaddrs; |
| /* list of multicast addresses */ |
| }; |
| |
| 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)) |
| #define IA_DSTSIN(ia) (&(((struct in_ifaddr *)(ia))->ia_dstaddr)) |
| |
| #define IN_LNAOF(in, ifa) \ |
| ((ntohl((in).s_addr) & ~((struct in_ifaddr *)(ifa)->ia_subnetmask)) |
| |
| |
| /* |
| * This information should be part of the ifnet structure but we don't wish |
| * to change that - as it might break a number of things |
| */ |
| |
| struct router_info { |
| struct ifnet *rti_ifp; |
| int rti_type; /* type of router which is querier on this interface */ |
| int rti_time; /* # of slow timeouts since last old query */ |
| struct router_info *rti_next; |
| }; |
| |
| /* |
| * Internet multicast address structure. There is one of these for each IP |
| * multicast group to which this host belongs on a given network interface. |
| * They are kept in a linked list, rooted in the interface's in_ifaddr |
| * structure. |
| */ |
| struct in_multi { |
| LIST_ENTRY(in_multi) inm_entry; /* list glue */ |
| struct in_addr inm_addr; /* IP multicast address */ |
| struct ifnet *inm_ifp; /* back pointer to ifnet */ |
| struct in_ifaddr *inm_ia; /* back pointer to in_ifaddr */ |
| u_int inm_refcount; /* no. membership claims by sockets */ |
| u_int inm_timer; /* IGMP membership report timer */ |
| u_int inm_state; /* state of the membership */ |
| struct router_info *inm_rti; /* router info*/ |
| }; |
| |
| #endif |