lib/bfd.h

   1 /* Copyright (c) 2012 Nicira, Inc.
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.  */
  14
  15 #ifndef BFD_H
  16 #define BFD_H 1
  17
  18 #define BFD_PACKET_LEN 24
  19 #define BFD_DEST_PORT 3784
  20
  21 #include <stdbool.h>
  22 #include <inttypes.h>
  23
  24 struct bfd;
  25 struct flow;
  26 struct flow_wildcards;
  27 struct ofpbuf;
  28 struct smap;
  29
  30 void bfd_wait(const struct bfd *);
  31 void bfd_run(struct bfd *);
  32
  33 bool bfd_should_send_packet(const struct bfd *);
  34 void bfd_put_packet(struct bfd *bfd, struct ofpbuf *packet,
  35                     uint8_t eth_src[6]);
  36
  37 bool bfd_should_process_flow(const struct bfd *, const struct flow *,
  38                              struct flow_wildcards *);
  39 void bfd_process_packet(struct bfd *, const struct flow *,
  40                         const struct ofpbuf *);
  41
  42 struct bfd *bfd_configure(struct bfd *, const char *name,
  43                           const struct smap *smap);
  44 struct bfd *bfd_ref(const struct bfd *);
  45 void bfd_unref(struct bfd *);
  46
  47 bool bfd_forwarding(const struct bfd *);
  48 void bfd_get_status(const struct bfd *, struct smap *);
  49
  50 #endif /* bfd.h */