FreeBSD/Linux Kernel Cross Reference
sys/net/if_clone.h

     /*-
      * SPDX-License-Identifier: BSD-3-Clause
      *
      * 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.
     * 3. 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: releng/12.0/sys/net/if_clone.h 333502 2018-05-11 20:08:28Z mmacy $
     */
    
    #ifndef _NET_IF_CLONE_H_
    #define _NET_IF_CLONE_H_
    
    #ifdef _KERNEL
    
    #define IFC_NOGROUP 0x1
    
    struct if_clone;
    
    /* Methods. */
    typedef int     ifc_match_t(struct if_clone *, const char *);
    typedef int     ifc_create_t(struct if_clone *, char *, size_t, caddr_t);
    typedef int     ifc_destroy_t(struct if_clone *, struct ifnet *);
    
    typedef int     ifcs_create_t(struct if_clone *, int, caddr_t);
    typedef void    ifcs_destroy_t(struct ifnet *);
    
    /* Interface cloner (de)allocating functions. */
    struct if_clone *
            if_clone_advanced(const char *, u_int, ifc_match_t, ifc_create_t,
                          ifc_destroy_t);
    struct if_clone *
            if_clone_simple(const char *, ifcs_create_t, ifcs_destroy_t, u_int);
    void    if_clone_detach(struct if_clone *);
    
    /* Unit (de)allocating fucntions. */
    int     ifc_name2unit(const char *name, int *unit);
    int     ifc_alloc_unit(struct if_clone *, int *);
    void    ifc_free_unit(struct if_clone *, int);
    const char *ifc_name(struct if_clone *);
    void ifc_flags_set(struct if_clone *, int flags);
    int ifc_flags_get(struct if_clone *);
    
    #ifdef _SYS_EVENTHANDLER_H_
    /* Interface clone event. */
    typedef void (*if_clone_event_handler_t)(void *, struct if_clone *);
    EVENTHANDLER_DECLARE(if_clone_event, if_clone_event_handler_t);
    #endif
    
    /* The below interfaces used only by net/if.c. */
    void    vnet_if_clone_init(void);
    int     if_clone_create(char *, size_t, caddr_t);
    int     if_clone_destroy(const char *);
    int     if_clone_list(struct if_clonereq *);
    struct if_clone *if_clone_findifc(struct ifnet *);
    void    if_clone_addgroup(struct ifnet *, struct if_clone *);
    
    /* The below interface used only by epair(4). */
    int     if_clone_destroyif(struct if_clone *, struct ifnet *);
    
    #endif /* _KERNEL */
    #endif /* !_NET_IF_CLONE_H_ */

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