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1 /*
2 * Copyright (c) 2010, 2011, 2012 Nicira, Inc.
3 *
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:
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17 #ifndef MULTIPATH_H
18 #define MULTIPATH_H 1
19
20 #include <stdint.h>
21 #include "ofp-errors.h"
22
23 struct ds;
24 struct flow;
25 struct flow_wildcards;
26 struct nx_action_multipath;
27 struct ofpact_multipath;
28 struct ofpbuf;
29
30 /* NXAST_MULTIPATH helper functions.
31 *
32 * See include/openflow/nicira-ext.h for NXAST_MULTIPATH specification.
33 */
34
35 enum ofperr multipath_from_openflow(const struct nx_action_multipath *,
36 struct ofpact_multipath *);
37 enum ofperr multipath_check(const struct ofpact_multipath *,
38 const struct flow *);
39 void multipath_to_nxast(const struct ofpact_multipath *,
40 struct ofpbuf *openflow);
41
42 void multipath_execute(const struct ofpact_multipath *, struct flow *,
43 struct flow_wildcards *);
44
45 void multipath_parse(struct ofpact_multipath *, const char *);
46 void multipath_format(const struct ofpact_multipath *, struct ds *);
47
48 #endif /* multipath.h */