2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
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 OPENVSWITCH_VCONN_H
18 #define OPENVSWITCH_VCONN_H 1
21 #include <openvswitch/list.h>
22 #include <openvswitch/types.h>
23 #include <openflow/openflow.h>
33 /* This structure should be treated as opaque by vconn implementations. */
35 const struct vconn_class *class;
39 /* OpenFlow versions. */
40 uint32_t allowed_versions; /* Bitmap of versions we will accept. */
41 uint32_t peer_versions; /* Peer's bitmap of versions it will accept. */
42 enum ofp_version version; /* Negotiated version (or 0). */
43 bool recv_any_version; /* True to receive a message of any version. */
48 void vconn_usage(bool active, bool passive, bool bootstrap);
50 /* Active vconns: virtual connections to OpenFlow devices. */
51 int vconn_verify_name(const char *name);
52 int vconn_open(const char *name, uint32_t allowed_versions, uint8_t dscp,
53 struct vconn **vconnp);
54 void vconn_close(struct vconn *);
55 const char *vconn_get_name(const struct vconn *);
57 uint32_t vconn_get_allowed_versions(const struct vconn *vconn);
58 void vconn_set_allowed_versions(struct vconn *vconn,
59 uint32_t allowed_versions);
60 int vconn_get_version(const struct vconn *);
61 void vconn_set_recv_any_version(struct vconn *);
63 int vconn_connect(struct vconn *);
64 int vconn_recv(struct vconn *, struct ofpbuf **);
65 int vconn_send(struct vconn *, struct ofpbuf *);
66 int vconn_recv_xid(struct vconn *, ovs_be32 xid, struct ofpbuf **);
67 int vconn_transact(struct vconn *, struct ofpbuf *, struct ofpbuf **);
68 int vconn_transact_noreply(struct vconn *, struct ofpbuf *, struct ofpbuf **);
69 int vconn_transact_multiple_noreply(struct vconn *, struct ovs_list *requests,
70 struct ofpbuf **replyp);
72 void vconn_run(struct vconn *);
73 void vconn_run_wait(struct vconn *);
75 int vconn_get_status(const struct vconn *);
77 int vconn_open_block(const char *name, uint32_t allowed_versions, uint8_t dscp,
79 int vconn_connect_block(struct vconn *);
80 int vconn_send_block(struct vconn *, struct ofpbuf *);
81 int vconn_recv_block(struct vconn *, struct ofpbuf **);
83 enum vconn_wait_type {
88 void vconn_wait(struct vconn *, enum vconn_wait_type);
89 void vconn_connect_wait(struct vconn *);
90 void vconn_recv_wait(struct vconn *);
91 void vconn_send_wait(struct vconn *);
93 /* Passive vconns: virtual listeners for incoming OpenFlow connections.
95 * This structure should be treated as opaque by vconn implementations. */
97 const struct pvconn_class *class;
99 uint32_t allowed_versions;
101 int pvconn_verify_name(const char *name);
102 int pvconn_open(const char *name, uint32_t allowed_versions, uint8_t dscp,
103 struct pvconn **pvconnp);
104 const char *pvconn_get_name(const struct pvconn *);
105 void pvconn_close(struct pvconn *);
106 int pvconn_accept(struct pvconn *, struct vconn **);
107 void pvconn_wait(struct pvconn *);