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      1 /*
      2  * netlink/route/qdisc-modules.h       Qdisc 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_QDISC_MODULES_H_
     13 #define NETLINK_QDISC_MODULES_H_
     14 
     15 #include <netlink/netlink.h>
     16 
     17 #ifdef __cplusplus
     18 extern "C" {
     19 #endif
     20 
     21 /**
     22  * Qdisc Operations
     23  * @ingroup qdisc
     24  */
     25 struct rtnl_qdisc_ops
     26 {
     27 	/**
     28 	 * Kind/Name of Qdisc
     29 	 */
     30 	char qo_kind[32];
     31 
     32 	/**
     33 	 * Dump callbacks
     34 	 */
     35 	void  (*qo_dump[NL_DUMP_MAX+1])(struct rtnl_qdisc *,
     36 					struct nl_dump_params *);
     37 
     38 	/**
     39 	 * Must return the contents supposed to be in TCA_OPTIONS
     40 	 */
     41 	struct nl_msg *(*qo_get_opts)(struct rtnl_qdisc *);
     42 
     43 	int (*qo_build_msg)(struct rtnl_qdisc *, struct nl_msg *);
     44 
     45 	/**
     46 	 * TCA_OPTIONS message parser
     47 	 */
     48 	int  (*qo_msg_parser)(struct rtnl_qdisc *);
     49 
     50 	/**
     51 	 * Called before a Qdisc object gets destroyed
     52 	 */
     53 	void (*qo_free_data)(struct rtnl_qdisc *);
     54 
     55 	/**
     56 	 * Called whenever a qdisc object needs to be cloned
     57 	 */
     58 	int  (*qo_clone)(struct rtnl_qdisc *, struct rtnl_qdisc *);
     59 
     60 	/**
     61 	 * INTERNAL (Do not use)
     62 	 */
     63 	struct rtnl_qdisc_ops *qo_next;
     64 };
     65 
     66 extern int			rtnl_qdisc_register(struct rtnl_qdisc_ops *);
     67 extern int			rtnl_qdisc_unregister(struct rtnl_qdisc_ops *);
     68 extern struct rtnl_qdisc_ops *	rtnl_qdisc_lookup_ops(struct rtnl_qdisc *);
     69 extern struct rtnl_qdisc_ops *	__rtnl_qdisc_lookup_ops(const char *);
     70 
     71 #ifdef __cplusplus
     72 }
     73 #endif
     74 
     75 #endif
     76