FreeBSD/Linux Kernel Cross Reference
sys/compat/linuxkpi/common/include/net/netevent.h

     /*-
      * Copyright (c) 2010 Isilon Systems, Inc.
      * Copyright (c) 2010 iX Systems, Inc.
      * Copyright (c) 2010 Panasas, Inc.
      * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
      * 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 unmodified, 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
     *
     * $FreeBSD$
     */
    #ifndef _LINUXKPI_NET_NETEVENT_H_
    #define _LINUXKPI_NET_NETEVENT_H_
    
    #include <sys/types.h>
    #include <sys/eventhandler.h>
    
    #include <linux/notifier.h>
    
    enum netevent_notif_type {
            NETEVENT_NEIGH_UPDATE = 0,
    #if 0 /* Unsupported events. */
            NETEVENT_PMTU_UPDATE,
            NETEVENT_REDIRECT,
    #endif
    };
    
    struct llentry;
    
    static inline void
    _handle_arp_update_event(void *arg, struct llentry *lle, int evt __unused)
    {
            struct notifier_block *nb;
    
            nb = arg;
            nb->notifier_call(nb, NETEVENT_NEIGH_UPDATE, lle);
    }
    
    static inline int
    register_netevent_notifier(struct notifier_block *nb)
    {
            nb->tags[NETEVENT_NEIGH_UPDATE] = EVENTHANDLER_REGISTER(
                lle_event, _handle_arp_update_event, nb, 0);
            return (0);
    }
    
    static inline int
    unregister_netevent_notifier(struct notifier_block *nb)
    {
    
            EVENTHANDLER_DEREGISTER(lle_event, nb->tags[NETEVENT_NEIGH_UPDATE]);
    
            return (0);
    }
    
    #endif /* _LINUXKPI_NET_NETEVENT_H_ */

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