xref: /freebsd/usr.sbin/ppp/iface.h (revision 72c59f1728c12fbdcd316c172708d8f3a60299be)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 struct ifa_msghdr;
32 
33 struct iface_addr {
34   unsigned system : 1;		/* System alias ? */
35   struct ncprange ifa;		/* local address/mask */
36   struct ncpaddr peer;		/* peer address */
37 };
38 
39 struct iface {
40   char *name;			/* Interface name (malloc'd) */
41   char *descr;			/* Interface description (malloc'd) */
42   int index;			/* Interface index */
43   int flags;			/* Interface flags (IFF_*) */
44   unsigned long mtu;		/* struct tuninfo MTU */
45 
46   unsigned addrs;		/* How many in_addr's */
47   struct iface_addr *addr;	/* Array of addresses (malloc'd) */
48 };
49 
50 #define IFACE_CLEAR_ALL		0	/* Nuke 'em all */
51 #define IFACE_CLEAR_ALIASES	1	/* Leave the NCP address */
52 
53 #define IFACE_ADD_LAST		0	/* Just another alias */
54 #define IFACE_ADD_FIRST		1	/* The IPCP address */
55 #define IFACE_FORCE_ADD		2	/* OR'd with IFACE_ADD_{FIRST,LAST} */
56 
57 #define IFACE_SYSTEM		4	/* Set/clear SYSTEM entries */
58 
59 extern struct iface *iface_Create(const char *name);
60 extern void iface_Clear(struct iface *, struct ncp *, int, int);
61 extern int iface_Name(struct iface *, const char *);
62 extern int iface_Descr(struct cmdargs const *);
63 extern int iface_Add(struct iface *, struct ncp *, const struct ncprange *,
64                      const struct ncpaddr *, int);
65 extern int iface_Delete(struct iface *, struct ncp *, const struct ncpaddr *);
66 extern int iface_Show(struct cmdargs const *);
67 extern int iface_SetFlags(const char *, int);
68 extern int iface_ClearFlags(const char *, int);
69 extern void iface_Free(struct iface *);
70 extern void iface_Destroy(struct iface *);
71 extern void iface_ParseHdr(struct ifa_msghdr *, struct sockaddr *[RTAX_MAX]);
72