| 1 | |
| 2 | * net/tipc/monitor.h
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| 3 | *
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| 4 | * Copyright (c) 2015, Ericsson AB
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| 5 | * All rights reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions are met:
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| 9 | *
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| 10 | * 1. Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * 3. Neither the names of the copyright holders nor the names of its
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| 16 | * contributors may be used to endorse or promote products derived from
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| 17 | * this software without specific prior written permission.
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| 18 | *
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| 19 | * Alternatively, this software may be distributed under the terms of the
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| 20 | * GNU General Public License ("GPL") version 2 as published by the Free
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| 21 | * Software Foundation.
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| 22 | *
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| 23 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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| 24 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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| 27 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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| 28 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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| 29 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 30 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 31 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 32 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| 33 | * POSSIBILITY OF SUCH DAMAGE.
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| 34 |
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| 35 |
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| 36 | #ifndef _TIPC_MONITOR_H
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| 37 | #define _TIPC_MONITOR_H
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| 38 |
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| 39 | #include "netlink.h"
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| 40 |
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| 41 | |
| 42 | * @list_gen: current generation of this node's monitor list
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| 43 | * @gen: current generation of this node's local domain
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| 44 | * @peer_gen: most recent domain generation received from peer
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| 45 | * @acked_gen: most recent generation of self's domain acked by peer
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| 46 | * @monitoring: this peer endpoint should continuously monitored
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| 47 | * @probing: peer endpoint should be temporarily probed for potential loss
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| 48 | * @synched: domain record's generation has been synched with peer after reset
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| 49 |
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| 50 | struct tipc_mon_state {
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| 51 | u16 list_gen;
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| 52 | u16 peer_gen;
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| 53 | u16 acked_gen;
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| 54 | bool monitoring :1;
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| 55 | bool probing :1;
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| 56 | bool reset :1;
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| 57 | bool synched :1;
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| 58 | };
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| 59 |
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| 60 | int tipc_mon_create(struct net *net, int bearer_id);
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| 61 | void tipc_mon_delete(struct net *net, int bearer_id);
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| 62 |
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| 63 | void tipc_mon_peer_up(struct net *net, u32 addr, int bearer_id);
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| 64 | void tipc_mon_peer_down(struct net *net, u32 addr, int bearer_id);
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| 65 | void tipc_mon_prep(struct net *net, void *data, int *dlen,
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| 66 | struct tipc_mon_state *state, int bearer_id);
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| 67 | void tipc_mon_rcv(struct net *net, void *data, u16 dlen, u32 addr,
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| 68 | struct tipc_mon_state *state, int bearer_id);
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| 69 | void tipc_mon_get_state(struct net *net, u32 addr,
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| 70 | struct tipc_mon_state *state,
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| 71 | int bearer_id);
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| 72 | void tipc_mon_remove_peer(struct net *net, u32 addr, int bearer_id);
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| 73 |
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| 74 | int tipc_nl_monitor_set_threshold(struct net *net, u32 cluster_size);
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| 75 | int tipc_nl_monitor_get_threshold(struct net *net);
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| 76 | int __tipc_nl_add_monitor(struct net *net, struct tipc_nl_msg *msg,
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| 77 | u32 bearer_id);
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| 78 | int tipc_nl_add_monitor_peer(struct net *net, struct tipc_nl_msg *msg,
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| 79 | u32 bearer_id, u32 *prev_node);
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| 80 | void tipc_mon_reinit_self(struct net *net);
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| 81 |
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| 82 | extern const int tipc_max_domain_size;
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| 83 | #endif
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