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      1 /*
      2  * netlink/route/class-modules.h       Class Module API
      3  *
      4  *	This library is free software; you can redistribute it and/or
      5  *	modify it under the terms of the GNU Lesser General Public
      6  *	License as published by the Free Software Foundation version 2.1
      7  *	of the License.
      8  *
      9  * Copyright (c) 2003-2006 Thomas Graf <tgraf (at) suug.ch>
     10  */
     11 
     12 #ifndef NETLINK_CLASS_MODULES_H_
     13 #define NETLINK_CLASS_MODULES_H_
     14 
     15 #include <netlink/netlink.h>
     16 
     17 #ifdef __cplusplus
     18 extern "C" {
     19 #endif
     20 
     21 /**
     22  * Class operations
     23  * @ingroup class_api
     24  */
     25 struct rtnl_class_ops
     26 {
     27 	/**
     28 	 * Kind/Name of class
     29 	 */
     30 	char co_kind[32];
     31 
     32 	/**
     33 	 * Dump callbacks
     34 	 */
     35 	void (*co_dump[NL_DUMP_MAX+1])(struct rtnl_class *,
     36 				       struct nl_dump_params *);
     37 
     38 	/**
     39 	 * Must return the contents supposed to be in TCA_OPTIONS
     40 	 */
     41 	struct nl_msg *(*co_get_opts)(struct rtnl_class *);
     42 
     43 	/**
     44 	 * TCA_OPTIONS message parser
     45 	 */
     46 	int  (*co_msg_parser)(struct rtnl_class *);
     47 
     48 	/**
     49 	 * Called before a class object gets destroyed
     50 	 */
     51 	void (*co_free_data)(struct rtnl_class *);
     52 
     53 	/**
     54 	 * Called whenever a class object needs to be cloned
     55 	 */
     56 	int (*co_clone)(struct rtnl_class *, struct rtnl_class *);
     57 
     58 	/**
     59 	 * INTERNAL (Do not use)
     60 	 */
     61 	struct rtnl_class_ops *co_next;
     62 };
     63 
     64 extern int			rtnl_class_register(struct rtnl_class_ops *);
     65 extern int			rtnl_class_unregister(struct rtnl_class_ops *);
     66 extern struct rtnl_class_ops *	rtnl_class_lookup_ops(struct rtnl_class *);
     67 extern struct rtnl_class_ops *	__rtnl_class_lookup_ops(const char *);
     68 
     69 #ifdef __cplusplus
     70 }
     71 #endif
     72 
     73 #endif
     74