| /*- |
| * 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: src/sys/net/if_clone.h,v 1.6.2.1.2.1 2009/10/25 01:10:29 kensmith Exp $ |
| */ |
| |
| #ifndef _BSD_NET_IF_CLONE_H_ |
| #define _BSD_NET_IF_CLONE_H_ |
| |
| #ifdef _FREEBSD_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, caddr_t); |
| int (*ifc_destroy)(struct if_clone *, struct ifnet *); |
| |
| long ifc_refcnt; /* (i) Refrence count. */ |
| struct mtx ifc_mtx; /* Muted to protect members. */ |
| LIST_HEAD(, ifnet) ifc_iflist; /* (i) List of cloned interfaces */ |
| }; |
| |
| void if_clone_init(void); |
| void if_clone_attach(struct if_clone *); |
| void if_clone_detach(struct if_clone *); |
| void vnet_if_clone_init(void); |
| |
| int if_clone_create(char *, size_t, caddr_t); |
| int if_clone_destroy(const char *); |
| int if_clone_destroyif(struct if_clone *, struct ifnet *); |
| 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, caddr_t); |
| 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, caddr_t); |
| int ifc_simple_destroy(struct if_clone *, struct ifnet *); |
| |
| #endif /* _FREEBSD_KERNEL */ |
| |
| #endif /* !_BSD_NET_IF_CLONE_H_ */ |