mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-18 10:35:55 +00:00
114 lines
4.3 KiB
C
114 lines
4.3 KiB
C
/*-
|
|
* Copyright (c) 1982, 1986, 1989, 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.
|
|
* 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.
|
|
*
|
|
* From: @(#)if.h 8.1 (Berkeley) 6/10/93
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _NET_IF_CLONE_H_
|
|
#define _NET_IF_CLONE_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#define IFC_CLONE_INITIALIZER(name, data, maxunit, \
|
|
attach, match, create, destroy) \
|
|
{ { 0 }, name, maxunit, NULL, 0, data, attach, match, create, destroy }
|
|
|
|
/*
|
|
* Structure describing a `cloning' interface.
|
|
*
|
|
* List of locks
|
|
* (c) const until freeing
|
|
* (d) driver specific data, may need external protection.
|
|
* (e) locked by if_cloners_mtx
|
|
* (i) locked by ifc_mtx mtx
|
|
*/
|
|
struct if_clone {
|
|
LIST_ENTRY(if_clone) ifc_list; /* (e) On list of cloners */
|
|
const char *ifc_name; /* (c) Name of device, e.g. `gif' */
|
|
int ifc_maxunit; /* (c) Maximum unit number */
|
|
unsigned char *ifc_units; /* (i) Bitmap to handle units. */
|
|
/* Considered private, access */
|
|
/* via ifc_(alloc|free)_unit(). */
|
|
int ifc_bmlen; /* (c) Bitmap length. */
|
|
void *ifc_data; /* (*) Data for ifc_* functions. */
|
|
|
|
/* (c) Driver specific cloning functions. Called with no locks held. */
|
|
void (*ifc_attach)(struct if_clone *);
|
|
int (*ifc_match)(struct if_clone *, const char *);
|
|
int (*ifc_create)(struct if_clone *, char *, size_t);
|
|
int (*ifc_destroy)(struct if_clone *, struct ifnet *);
|
|
|
|
long ifc_refcnt; /* (i) Refrence count. */
|
|
struct mtx ifc_mtx; /* Muted to protect members. */
|
|
};
|
|
|
|
void if_clone_init(void);
|
|
void if_clone_attach(struct if_clone *);
|
|
void if_clone_detach(struct if_clone *);
|
|
|
|
int if_clone_create(char *, size_t);
|
|
int if_clone_destroy(const char *);
|
|
int if_clone_list(struct if_clonereq *);
|
|
|
|
int ifc_name2unit(const char *name, int *unit);
|
|
int ifc_alloc_unit(struct if_clone *, int *);
|
|
void ifc_free_unit(struct if_clone *, int);
|
|
|
|
/*
|
|
* The ifc_simple functions, structures, and macros implement basic
|
|
* cloning as in 5.[012].
|
|
*/
|
|
|
|
struct ifc_simple_data {
|
|
int ifcs_minifs; /* minimum number of interfaces */
|
|
|
|
int (*ifcs_create)(struct if_clone *, int);
|
|
void (*ifcs_destroy)(struct ifnet *);
|
|
};
|
|
|
|
/* interface clone event */
|
|
typedef void (*if_clone_event_handler_t)(void *, struct if_clone *);
|
|
EVENTHANDLER_DECLARE(if_clone_event, if_clone_event_handler_t);
|
|
|
|
#define IFC_SIMPLE_DECLARE(name, minifs) \
|
|
struct ifc_simple_data name##_cloner_data = \
|
|
{minifs, name##_clone_create, name##_clone_destroy}; \
|
|
struct if_clone name##_cloner = \
|
|
IFC_CLONE_INITIALIZER(#name, &name##_cloner_data, IF_MAXUNIT, \
|
|
ifc_simple_attach, ifc_simple_match, ifc_simple_create, ifc_simple_destroy)
|
|
|
|
void ifc_simple_attach(struct if_clone *);
|
|
int ifc_simple_match(struct if_clone *, const char *);
|
|
int ifc_simple_create(struct if_clone *, char *, size_t);
|
|
int ifc_simple_destroy(struct if_clone *, struct ifnet *);
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* !_NET_IF_CLONE_H_ */
|