1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * net/tipc/monitor.h 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (c) 2015, Ericsson AB 5*4882a593Smuzhiyun * All rights reserved. 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Redistribution and use in source and binary forms, with or without 8*4882a593Smuzhiyun * modification, are permitted provided that the following conditions are met: 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * 1. Redistributions of source code must retain the above copyright 11*4882a593Smuzhiyun * notice, this list of conditions and the following disclaimer. 12*4882a593Smuzhiyun * 2. Redistributions in binary form must reproduce the above copyright 13*4882a593Smuzhiyun * notice, this list of conditions and the following disclaimer in the 14*4882a593Smuzhiyun * documentation and/or other materials provided with the distribution. 15*4882a593Smuzhiyun * 3. Neither the names of the copyright holders nor the names of its 16*4882a593Smuzhiyun * contributors may be used to endorse or promote products derived from 17*4882a593Smuzhiyun * this software without specific prior written permission. 18*4882a593Smuzhiyun * 19*4882a593Smuzhiyun * Alternatively, this software may be distributed under the terms of the 20*4882a593Smuzhiyun * GNU General Public License ("GPL") version 2 as published by the Free 21*4882a593Smuzhiyun * Software Foundation. 22*4882a593Smuzhiyun * 23*4882a593Smuzhiyun * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 24*4882a593Smuzhiyun * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25*4882a593Smuzhiyun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26*4882a593Smuzhiyun * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 27*4882a593Smuzhiyun * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28*4882a593Smuzhiyun * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29*4882a593Smuzhiyun * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30*4882a593Smuzhiyun * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31*4882a593Smuzhiyun * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32*4882a593Smuzhiyun * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33*4882a593Smuzhiyun * POSSIBILITY OF SUCH DAMAGE. 34*4882a593Smuzhiyun */ 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun #ifndef _TIPC_MONITOR_H 37*4882a593Smuzhiyun #define _TIPC_MONITOR_H 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun #include "netlink.h" 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun /* struct tipc_mon_state: link instance's cache of monitor list and domain state 42*4882a593Smuzhiyun * @list_gen: current generation of this node's monitor list 43*4882a593Smuzhiyun * @gen: current generation of this node's local domain 44*4882a593Smuzhiyun * @peer_gen: most recent domain generation received from peer 45*4882a593Smuzhiyun * @acked_gen: most recent generation of self's domain acked by peer 46*4882a593Smuzhiyun * @monitoring: this peer endpoint should continuously monitored 47*4882a593Smuzhiyun * @probing: peer endpoint should be temporarily probed for potential loss 48*4882a593Smuzhiyun * @synched: domain record's generation has been synched with peer after reset 49*4882a593Smuzhiyun */ 50*4882a593Smuzhiyun struct tipc_mon_state { 51*4882a593Smuzhiyun u16 list_gen; 52*4882a593Smuzhiyun u16 peer_gen; 53*4882a593Smuzhiyun u16 acked_gen; 54*4882a593Smuzhiyun bool monitoring :1; 55*4882a593Smuzhiyun bool probing :1; 56*4882a593Smuzhiyun bool reset :1; 57*4882a593Smuzhiyun bool synched :1; 58*4882a593Smuzhiyun }; 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun int tipc_mon_create(struct net *net, int bearer_id); 61*4882a593Smuzhiyun void tipc_mon_delete(struct net *net, int bearer_id); 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun void tipc_mon_peer_up(struct net *net, u32 addr, int bearer_id); 64*4882a593Smuzhiyun void tipc_mon_peer_down(struct net *net, u32 addr, int bearer_id); 65*4882a593Smuzhiyun void tipc_mon_prep(struct net *net, void *data, int *dlen, 66*4882a593Smuzhiyun struct tipc_mon_state *state, int bearer_id); 67*4882a593Smuzhiyun void tipc_mon_rcv(struct net *net, void *data, u16 dlen, u32 addr, 68*4882a593Smuzhiyun struct tipc_mon_state *state, int bearer_id); 69*4882a593Smuzhiyun void tipc_mon_get_state(struct net *net, u32 addr, 70*4882a593Smuzhiyun struct tipc_mon_state *state, 71*4882a593Smuzhiyun int bearer_id); 72*4882a593Smuzhiyun void tipc_mon_remove_peer(struct net *net, u32 addr, int bearer_id); 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun int tipc_nl_monitor_set_threshold(struct net *net, u32 cluster_size); 75*4882a593Smuzhiyun int tipc_nl_monitor_get_threshold(struct net *net); 76*4882a593Smuzhiyun int __tipc_nl_add_monitor(struct net *net, struct tipc_nl_msg *msg, 77*4882a593Smuzhiyun u32 bearer_id); 78*4882a593Smuzhiyun int tipc_nl_add_monitor_peer(struct net *net, struct tipc_nl_msg *msg, 79*4882a593Smuzhiyun u32 bearer_id, u32 *prev_node); 80*4882a593Smuzhiyun void tipc_mon_reinit_self(struct net *net); 81*4882a593Smuzhiyun 82*4882a593Smuzhiyun extern const int tipc_max_domain_size; 83*4882a593Smuzhiyun #endif 84