monitor.h 3.5 KB

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  1. /*
  2. * net/tipc/monitor.h
  3. *
  4. * Copyright (c) 2015, Ericsson AB
  5. * All rights reserved.
  6. *
  7. * Redistribution and use in source and binary forms, with or without
  8. * modification, are permitted provided that the following conditions are met:
  9. *
  10. * 1. Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. * 2. Redistributions in binary form must reproduce the above copyright
  13. * notice, this list of conditions and the following disclaimer in the
  14. * documentation and/or other materials provided with the distribution.
  15. * 3. Neither the names of the copyright holders nor the names of its
  16. * contributors may be used to endorse or promote products derived from
  17. * this software without specific prior written permission.
  18. *
  19. * Alternatively, this software may be distributed under the terms of the
  20. * GNU General Public License ("GPL") version 2 as published by the Free
  21. * Software Foundation.
  22. *
  23. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  24. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26. * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  27. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  30. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  31. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  32. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  33. * POSSIBILITY OF SUCH DAMAGE.
  34. */
  35. #ifndef _TIPC_MONITOR_H
  36. #define _TIPC_MONITOR_H
  37. #include "netlink.h"
  38. /* struct tipc_mon_state: link instance's cache of monitor list and domain state
  39. * @list_gen: current generation of this node's monitor list
  40. * @gen: current generation of this node's local domain
  41. * @peer_gen: most recent domain generation received from peer
  42. * @acked_gen: most recent generation of self's domain acked by peer
  43. * @monitoring: this peer endpoint should continuously monitored
  44. * @probing: peer endpoint should be temporarily probed for potential loss
  45. * @synched: domain record's generation has been synched with peer after reset
  46. */
  47. struct tipc_mon_state {
  48. u16 list_gen;
  49. u16 peer_gen;
  50. u16 acked_gen;
  51. bool monitoring :1;
  52. bool probing :1;
  53. bool reset :1;
  54. bool synched :1;
  55. };
  56. int tipc_mon_create(struct net *net, int bearer_id);
  57. void tipc_mon_delete(struct net *net, int bearer_id);
  58. void tipc_mon_peer_up(struct net *net, u32 addr, int bearer_id);
  59. void tipc_mon_peer_down(struct net *net, u32 addr, int bearer_id);
  60. void tipc_mon_prep(struct net *net, void *data, int *dlen,
  61. struct tipc_mon_state *state, int bearer_id);
  62. void tipc_mon_rcv(struct net *net, void *data, u16 dlen, u32 addr,
  63. struct tipc_mon_state *state, int bearer_id);
  64. void tipc_mon_get_state(struct net *net, u32 addr,
  65. struct tipc_mon_state *state,
  66. int bearer_id);
  67. void tipc_mon_remove_peer(struct net *net, u32 addr, int bearer_id);
  68. int tipc_nl_monitor_set_threshold(struct net *net, u32 cluster_size);
  69. int tipc_nl_monitor_get_threshold(struct net *net);
  70. int __tipc_nl_add_monitor(struct net *net, struct tipc_nl_msg *msg,
  71. u32 bearer_id);
  72. int tipc_nl_add_monitor_peer(struct net *net, struct tipc_nl_msg *msg,
  73. u32 bearer_id, u32 *prev_node);
  74. void tipc_mon_reinit_self(struct net *net);
  75. extern const int tipc_max_domain_size;
  76. #endif