]>
Commit | Line | Data |
---|---|---|
064af421 | 1 | /* |
3fbbcba7 | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2013, 2015 Nicira, Inc. |
064af421 | 3 | * |
a14bc59f BP |
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: | |
064af421 | 7 | * |
a14bc59f BP |
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. | |
064af421 BP |
15 | */ |
16 | ||
17 | #ifndef FAIL_OPEN_H | |
18 | #define FAIL_OPEN_H 1 | |
19 | ||
20 | #include <stdbool.h> | |
21 | #include <stdint.h> | |
ee1afdd5 | 22 | #include "ofproto-provider.h" |
064af421 | 23 | |
19a87e36 | 24 | struct connmgr; |
064af421 BP |
25 | struct fail_open; |
26 | struct ofproto; | |
064af421 | 27 | |
7778bd15 BP |
28 | /* Priority of the rule added by the fail-open subsystem when a switch enters |
29 | * fail-open mode. This priority value uniquely identifies a fail-open flow | |
30 | * (OpenFlow priorities max out at 65535 and nothing else in Open vSwitch | |
76ce9432 BP |
31 | * creates flows with this priority). And "f0" is mnemonic for "fail open"! */ |
32 | #define FAIL_OPEN_PRIORITY 0xf0f0f0 | |
7778bd15 | 33 | |
ee1afdd5 BP |
34 | /* Returns true if 'rule' is one created by the "fail open" logic, false |
35 | * otherwise. */ | |
36 | static inline bool | |
37 | is_fail_open_rule(const struct rule *rule) | |
38 | { | |
39 | return rule->cr.priority == FAIL_OPEN_PRIORITY; | |
40 | } | |
41 | ||
19a87e36 | 42 | struct fail_open *fail_open_create(struct ofproto *, struct connmgr *); |
feb8a80b | 43 | void fail_open_destroy(struct fail_open *) OVS_EXCLUDED(ofproto_mutex); |
064af421 | 44 | void fail_open_wait(struct fail_open *); |
7778bd15 | 45 | bool fail_open_is_active(const struct fail_open *); |
064af421 | 46 | void fail_open_run(struct fail_open *); |
feb8a80b BP |
47 | void fail_open_maybe_recover(struct fail_open *) OVS_EXCLUDED(ofproto_mutex); |
48 | void fail_open_flushed(struct fail_open *) OVS_EXCLUDED(ofproto_mutex); | |
064af421 | 49 | |
3fbbcba7 BP |
50 | int fail_open_count_rules(const struct fail_open *); |
51 | ||
064af421 | 52 | #endif /* fail-open.h */ |