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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-10-09 22:42:09 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-10-10 09:06:58 +0200 |
commit | bceabc95c1c85d793200446fa85f1ddc6313ea29 (patch) | |
tree | 973c8bd8deca9fd69913f2895cc91e0e6114d46c /freebsd/sys/net/if_clone.h | |
parent | Add FreeBSD sources as a submodule (diff) | |
download | rtems-libbsd-bceabc95c1c85d793200446fa85f1ddc6313ea29.tar.bz2 |
Move files to match FreeBSD layout
Diffstat (limited to 'freebsd/sys/net/if_clone.h')
-rw-r--r-- | freebsd/sys/net/if_clone.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/freebsd/sys/net/if_clone.h b/freebsd/sys/net/if_clone.h new file mode 100644 index 00000000..67de320b --- /dev/null +++ b/freebsd/sys/net/if_clone.h @@ -0,0 +1,116 @@ +/*- + * 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_HH_ +#define _NET_IF_CLONE_HH_ + +#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, 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 /* _KERNEL */ + +#endif /* !_NET_IF_CLONE_HH_ */ |