xref: /freebsd/usr.sbin/ppp/iface.h (revision dc744e1949e9681ad8d60a1d9a093e7f2e5992ee)
1 /*-
2  * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 struct ifa_msghdr;
30 
31 struct iface_addr {
32   struct in_addr ifa;		/* local address */
33   struct in_addr mask;		/* netmask */
34   int bits;			/* netmask bits - -1 if not contiguous */
35   struct in_addr brd;		/* peer address */
36 };
37 
38 struct iface {
39   char *name;			/* Interface name (malloc'd) */
40   int index;			/* Interface index */
41   int flags;			/* Interface flags (IFF_*) */
42 
43   int in_addrs;			/* How many in_addr's */
44   struct iface_addr *in_addr;	/* Array of addresses (malloc'd) */
45 };
46 
47 #define IFACE_CLEAR_ALL		0	/* Nuke 'em all */
48 #define IFACE_CLEAR_ALIASES	1	/* Leave the IPCP address */
49 
50 #define IFACE_ADD_LAST		0	/* Just another alias */
51 #define IFACE_ADD_FIRST		1	/* The IPCP address */
52 #define IFACE_FORCE_ADD		2	/* OR'd with IFACE_ADD_{FIRST,LAST} */
53 
54 #define iface_Clear iface_inClear	/* Same for now */
55 
56 extern struct iface *iface_Create(const char *name);
57 extern void iface_inClear(struct iface *, int);
58 extern int iface_inAdd(struct iface *, struct in_addr, struct in_addr,
59                      struct in_addr, int);
60 extern int iface_inDelete(struct iface *, struct in_addr);
61 extern int iface_Show(struct cmdargs const *);
62 extern int iface_SetFlags(const char *, int);
63 extern int iface_ClearFlags(const char *, int);
64 extern void iface_Destroy(struct iface *);
65 extern void iface_ParseHdr(struct ifa_msghdr *, struct sockaddr *[RTAX_MAX]);
66