classifier-modules.h

/*
 * netlink/route/classifier-modules.h   Classifier Module API
 *
 *      This library is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU Lesser General Public
 *      License as published by the Free Software Foundation version 2.1
 *      of the License.
 *
 * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
 */
 
#ifndef NETLINK_CLASS_MODULES_H_
#define NETLINK_CLASS_MODULES_H_
 
#include <netlink/netlink.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
/**
 * Classifier operations
 * @ingroup cls_api
 */
struct rtnl_cls_ops
{
        /**
         * Kind/Name of classifier
         */
        char co_kind[32];
 
        /**
         * Dump callbacks
         */
        int (*co_dump[NL_DUMP_MAX+1])(struct rtnl_cls *,
                                      struct nl_dump_params *, int);
        /**
         * Must return the contents supposed to be in TCA_OPTIONS
         */
        struct nl_msg *(*co_get_opts)(struct rtnl_cls *);
 
        /**
         * TCA_OPTIONS message parser
         */
        int (*co_msg_parser)(struct rtnl_cls *);
 
        /**
         * Called before a class object gets destroyed
         */
        void (*co_free_data)(struct rtnl_cls *);
 
        /**
         * Called whenever a classifier object needs to be cloned
         */
        int (*co_clone)(struct rtnl_cls *, struct rtnl_cls *);
 
        /**
         * INTERNAL (Do not use)
         */
        struct rtnl_cls_ops *co_next;
};
 
extern int                      rtnl_cls_register(struct rtnl_cls_ops *);
extern int                      rtnl_cls_unregister(struct rtnl_cls_ops *);
extern struct rtnl_cls_ops *    rtnl_cls_lookup_ops(struct rtnl_cls *);
extern struct rtnl_cls_ops *    __rtnl_cls_lookup_ops(const char *kind);
 
#ifdef __cplusplus
}
#endif
 
#endif