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authorSebastian Huber <sebastian.huber@embedded-brains.de>2013-10-09 22:42:09 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2013-10-10 09:06:58 +0200
commitbceabc95c1c85d793200446fa85f1ddc6313ea29 (patch)
tree973c8bd8deca9fd69913f2895cc91e0e6114d46c /freebsd/sys/net/if_clone.h
parentAdd FreeBSD sources as a submodule (diff)
downloadrtems-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.h116
1 files changed, 116 insertions, 0 deletions
diff --git a/freebsd/sys/net/if_clone.h b/freebsd/sys/net/if_clone.h
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+++ b/freebsd/sys/net/if_clone.h
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+/*-
+ * 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_ */