2 * Copyright (c) 2009 Nicira Networks.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef NETLINK_NOTIFIER_H
18 #define NETLINK_NOTIFIER_H 1
20 /* These functions are Linux specific, so they should be used directly only by
21 * Linux-specific code. */
31 /* Function called to report netlink notifications. 'change' describes the
32 * specific change filled out by an nln_parse_func. It may be null if the
33 * buffer of change information overflowed, in which case the function must
34 * assume that everything may have changed. 'aux' is as specified in
35 * nln_notifier_register(). */
36 typedef void nln_notify_func(const void *change, void *aux);
38 /* Function called to parse incoming nln notifications. The 'buf' message
39 * should be parsed into 'change' as specified in nln_create(). */
40 typedef bool nln_parse_func(struct ofpbuf *buf, void *change);
42 struct nln *nln_create(int protocol, int multicast_group, nln_parse_func *,
44 void nln_destroy(struct nln *);
45 struct nln_notifier *nln_notifier_create(struct nln *, nln_notify_func *,
47 void nln_notifier_destroy(struct nln_notifier *);
48 void nln_run(struct nln *);
49 void nln_wait(struct nln *);
50 #endif /* netlink-notifier.h */