xref: /freebsd/sys/net/if_clone.h (revision 1c05a6ea6b849ff95e539c31adea887c644a6a01)
1 /*-
2  * Copyright (c) 1982, 1986, 1989, 1993
3  *	The Regents of the University of California.  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  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *	From: @(#)if.h	8.1 (Berkeley) 6/10/93
30  * $FreeBSD$
31  */
32 
33 #ifndef	_NET_IF_CLONE_H_
34 #define	_NET_IF_CLONE_H_
35 
36 #ifdef _KERNEL
37 
38 struct if_clone;
39 
40 /* Methods. */
41 typedef int	ifc_match_t(struct if_clone *, const char *);
42 typedef int	ifc_create_t(struct if_clone *, char *, size_t, caddr_t);
43 typedef int	ifc_destroy_t(struct if_clone *, struct ifnet *);
44 
45 typedef int	ifcs_create_t(struct if_clone *, int, caddr_t);
46 typedef void	ifcs_destroy_t(struct ifnet *);
47 
48 /* Interface cloner (de)allocating functions. */
49 struct if_clone *
50 	if_clone_advanced(const char *, u_int, ifc_match_t, ifc_create_t,
51 		      ifc_destroy_t);
52 struct if_clone *
53 	if_clone_simple(const char *, ifcs_create_t, ifcs_destroy_t, u_int);
54 void	if_clone_detach(struct if_clone *);
55 
56 /* Unit (de)allocating fucntions. */
57 int	ifc_name2unit(const char *name, int *unit);
58 int	ifc_alloc_unit(struct if_clone *, int *);
59 void	ifc_free_unit(struct if_clone *, int);
60 
61 #ifdef _SYS_EVENTHANDLER_H_
62 /* Interface clone event. */
63 typedef void (*if_clone_event_handler_t)(void *, struct if_clone *);
64 EVENTHANDLER_DECLARE(if_clone_event, if_clone_event_handler_t);
65 #endif
66 
67 /* The below interfaces used only by net/if.c. */
68 void	vnet_if_clone_init(void);
69 int	if_clone_create(char *, size_t, caddr_t);
70 int	if_clone_destroy(const char *);
71 int	if_clone_list(struct if_clonereq *);
72 struct if_clone *if_clone_findifc(struct ifnet *);
73 void	if_clone_addgroup(struct ifnet *, struct if_clone *);
74 
75 /* The below interface used only by epair(4). */
76 int	if_clone_destroyif(struct if_clone *, struct ifnet *);
77 
78 #endif /* _KERNEL */
79 #endif /* !_NET_IF_CLONE_H_ */
80