blob: 089f21230d469cb74f1b0d0b4a27f48c2f1b4b76 [file] [log] [blame]
/*
* lib/route/qdisc_api.c Queueing Discipline 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>
*/
/**
* @ingroup qdisc
* @defgroup qdisc_api Queueing Discipline Modules
* @{
*/
#include <netlink-local.h>
#include <netlink-tc.h>
#include <netlink/netlink.h>
#include <netlink/utils.h>
#include <netlink/route/link.h>
#include <netlink/route/tc.h>
#include <netlink/route/qdisc.h>
#include <netlink/route/class.h>
#include <netlink/route/classifier.h>
#include <netlink/route/qdisc-modules.h>
static struct rtnl_qdisc_ops *qdisc_ops_list;
/**
* @name Module API
* @{
*/
/**
* Register a qdisc module
* @arg qops qdisc module operations
*/
int rtnl_qdisc_register(struct rtnl_qdisc_ops *qops)
{
struct rtnl_qdisc_ops *o, **op;
if (!qops->qo_kind[0])
BUG();
for (op = &qdisc_ops_list; (o = *op) != NULL; op = &o->qo_next)
if (!strcasecmp(qops->qo_kind, o->qo_kind))
return -NLE_EXIST;
qops->qo_next = NULL;
*op = qops;
return 0;
}
/**
* Unregister a qdisc module
* @arg qops qdisc module operations
*/
int rtnl_qdisc_unregister(struct rtnl_qdisc_ops *qops)
{
struct rtnl_qdisc_ops *o, **op;
for (op = &qdisc_ops_list; (o = *op) != NULL; op = &o->qo_next)
if (!strcasecmp(qops->qo_kind, o->qo_kind))
break;
if (!o)
return -NLE_OBJ_NOTFOUND;
*op = qops->qo_next;
return 0;
}
struct rtnl_qdisc_ops *__rtnl_qdisc_lookup_ops(const char *kind)
{
struct rtnl_qdisc_ops *qops;
for (qops = qdisc_ops_list; qops; qops = qops->qo_next)
if (!strcmp(kind, qops->qo_kind))
return qops;
return NULL;
}
struct rtnl_qdisc_ops *rtnl_qdisc_lookup_ops(struct rtnl_qdisc *qdisc)
{
if (!qdisc->q_ops)
qdisc->q_ops = __rtnl_qdisc_lookup_ops(qdisc->q_kind);
return qdisc->q_ops;
}
/** @} */
/** @} */