net/tipc/group.h

0001 /*
0002  * net/tipc/group.h: Include file for TIPC group unicast/multicast functions
0003  *
0004  * Copyright (c) 2017, Ericsson AB
0005  * Copyright (c) 2020, Red Hat Inc
0006  * All rights reserved.
0007  *
0008  * Redistribution and use in source and binary forms, with or without
0009  * modification, are permitted provided that the following conditions are met:
0010  *
0011  * 1. Redistributions of source code must retain the above copyright
0012  *    notice, this list of conditions and the following disclaimer.
0013  * 2. Redistributions in binary form must reproduce the above copyright
0014  *    notice, this list of conditions and the following disclaimer in the
0015  *    documentation and/or other materials provided with the distribution.
0016  * 3. Neither the names of the copyright holders nor the names of its
0017  *    contributors may be used to endorse or promote products derived from
0018  *    this software without specific prior written permission.
0019  *
0020  * Alternatively, this software may be distributed under the terms of the
0021  * GNU General Public License ("GPL") version 2 as published by the Free
0022  * Software Foundation.
0023  *
0024  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0025  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0027  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0028  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0029  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0030  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0031  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0032  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0033  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0034  * POSSIBILITY OF SUCH DAMAGE.
0035  */
0036
0037 #ifndef _TIPC_GROUP_H
0038 #define _TIPC_GROUP_H
0039
0040 #include "core.h"
0041
0042 struct tipc_group;
0043 struct tipc_member;
0044 struct tipc_msg;
0045
0046 struct tipc_group *tipc_group_create(struct net *net, u32 portid,
0047                      struct tipc_group_req *mreq,
0048                      bool *group_is_open);
0049 void tipc_group_join(struct net *net, struct tipc_group *grp, int *sk_rcv_buf);
0050 void tipc_group_delete(struct net *net, struct tipc_group *grp);
0051 void tipc_group_add_member(struct tipc_group *grp, u32 node,
0052                u32 port, u32 instance);
0053 struct tipc_nlist *tipc_group_dests(struct tipc_group *grp);
0054 void tipc_group_self(struct tipc_group *grp, struct tipc_service_range *seq,
0055              int *scope);
0056 u32 tipc_group_exclude(struct tipc_group *grp);
0057 void tipc_group_filter_msg(struct tipc_group *grp,
0058                struct sk_buff_head *inputq,
0059                struct sk_buff_head *xmitq);
0060 void tipc_group_member_evt(struct tipc_group *grp, bool *wakeup,
0061                int *sk_rcvbuf, struct tipc_msg *hdr,
0062                struct sk_buff_head *inputq,
0063                struct sk_buff_head *xmitq);
0064 void tipc_group_proto_rcv(struct tipc_group *grp, bool *wakeup,
0065               struct tipc_msg *hdr,
0066               struct sk_buff_head *inputq,
0067               struct sk_buff_head *xmitq);
0068 void tipc_group_update_bc_members(struct tipc_group *grp, int len, bool ack);
0069 bool tipc_group_cong(struct tipc_group *grp, u32 dnode, u32 dport,
0070              int len, struct tipc_member **m);
0071 bool tipc_group_bc_cong(struct tipc_group *grp, int len);
0072 void tipc_group_update_rcv_win(struct tipc_group *grp, int blks, u32 node,
0073                    u32 port, struct sk_buff_head *xmitq);
0074 u16 tipc_group_bc_snd_nxt(struct tipc_group *grp);
0075 void tipc_group_update_member(struct tipc_member *m, int len);
0076 int tipc_group_fill_sock_diag(struct tipc_group *grp, struct sk_buff *skb);
0077 #endif