net/tipc/group.h

   1 /*
   2  * net/tipc/group.h: Include file for TIPC group unicast/multicast functions
   3  *
   4  * Copyright (c) 2017, 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
  36 #ifndef _TIPC_GROUP_H
  37 #define _TIPC_GROUP_H
  38
  39 #include "core.h"
  40
  41 struct tipc_group;
  42 struct tipc_member;
  43 struct tipc_msg;
  44
  45 struct tipc_group *tipc_group_create(struct net *net, u32 portid,
  46                                      struct tipc_group_req *mreq,
  47                                      bool *group_is_open);
  48 void tipc_group_join(struct net *net, struct tipc_group *grp, int *sk_rcv_buf);
  49 void tipc_group_delete(struct net *net, struct tipc_group *grp);
  50 void tipc_group_add_member(struct tipc_group *grp, u32 node,
  51                            u32 port, u32 instance);
  52 struct tipc_nlist *tipc_group_dests(struct tipc_group *grp);
  53 void tipc_group_self(struct tipc_group *grp, struct tipc_name_seq *seq,
  54                      int *scope);
  55 u32 tipc_group_exclude(struct tipc_group *grp);
  56 void tipc_group_filter_msg(struct tipc_group *grp,
  57                            struct sk_buff_head *inputq,
  58                            struct sk_buff_head *xmitq);
  59 void tipc_group_member_evt(struct tipc_group *grp, bool *wakeup,
  60                            int *sk_rcvbuf, struct tipc_msg *hdr,
  61                            struct sk_buff_head *inputq,
  62                            struct sk_buff_head *xmitq);
  63 void tipc_group_proto_rcv(struct tipc_group *grp, bool *wakeup,
  64                           struct tipc_msg *hdr,
  65                           struct sk_buff_head *inputq,
  66                           struct sk_buff_head *xmitq);
  67 void tipc_group_update_bc_members(struct tipc_group *grp, int len, bool ack);
  68 bool tipc_group_cong(struct tipc_group *grp, u32 dnode, u32 dport,
  69                      int len, struct tipc_member **m);
  70 bool tipc_group_bc_cong(struct tipc_group *grp, int len);
  71 void tipc_group_update_rcv_win(struct tipc_group *grp, int blks, u32 node,
  72                                u32 port, struct sk_buff_head *xmitq);
  73 u16 tipc_group_bc_snd_nxt(struct tipc_group *grp);
  74 void tipc_group_update_member(struct tipc_member *m, int len);
  75 int tipc_group_fill_sock_diag(struct tipc_group *grp, struct sk_buff *skb);
  76 #endif