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/*
* Copyright (c) 2009 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef RTNETLINK_H
#define RTNETLINK_H 1
/* These functions are Linux specific, so they should be used directly only by
* Linux-specific code. */
#include "list.h"
struct rtnetlink;
struct nlattr;
struct ofpbuf;
/* Function called to report rtnetlink notifications. 'change' describes the
* specific change filled out by an rtnetlink_parse_func. It may be null if
* the buffer of change information overflowed, in which case the function must
* assume that everything may have changed. 'aux' is as specified in
* rtnetlink_notifier_register().
*/
typedef void rtnetlink_notify_func(const void *change, void *aux);
/* Function called to parse incoming rtnetlink notifications. The 'buf'
* message should be parsed into 'change' as specified in rtnetlink_create().
*/
typedef bool rtnetlink_parse_func(struct ofpbuf *buf, void *change);
struct rtnetlink_notifier {
struct list node;
rtnetlink_notify_func *cb;
void *aux;
};
struct rtnetlink *rtnetlink_create(int multicast_group,
rtnetlink_parse_func *,
void *change);
int rtnetlink_notifier_register(struct rtnetlink *,
struct rtnetlink_notifier *,
rtnetlink_notify_func *, void *aux);
void rtnetlink_notifier_unregister(struct rtnetlink *,
struct rtnetlink_notifier *);
void rtnetlink_notifier_run(struct rtnetlink *);
void rtnetlink_notifier_wait(struct rtnetlink *);
#endif /* rtnetlink.h */
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