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  * Copyright (c) 2020, Red Hat Inc
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the names of the copyright holders nor the names of its
  17  *    contributors may be used to endorse or promote products derived from
  18  *    this software without specific prior written permission.
  19  *
  20  * Alternatively, this software may be distributed under the terms of the
  21  * GNU General Public License ("GPL") version 2 as published by the Free
  22  * Software Foundation.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  34  * POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 #ifndef _TIPC_GROUP_H
  38 #define _TIPC_GROUP_H
  39
  40 #include "core.h"
  41
  42 struct tipc_group;
  43 struct tipc_member;
  44 struct tipc_msg;
  45
  46 struct tipc_group *tipc_group_create(struct net *net, u32 portid,
  47                                      struct tipc_group_req *mreq,
  48                                      bool *group_is_open);
  49 void tipc_group_join(struct net *net, struct tipc_group *grp, int *sk_rcv_buf);
  50 void tipc_group_delete(struct net *net, struct tipc_group *grp);
  51 void tipc_group_add_member(struct tipc_group *grp, u32 node,
  52                            u32 port, u32 instance);
  53 struct tipc_nlist *tipc_group_dests(struct tipc_group *grp);
  54 void tipc_group_self(struct tipc_group *grp, struct tipc_service_range *seq,
  55                      int *scope);
  56 u32 tipc_group_exclude(struct tipc_group *grp);
  57 void tipc_group_filter_msg(struct tipc_group *grp,
  58                            struct sk_buff_head *inputq,
  59                            struct sk_buff_head *xmitq);
  60 void tipc_group_member_evt(struct tipc_group *grp, bool *wakeup,
  61                            int *sk_rcvbuf, struct tipc_msg *hdr,
  62                            struct sk_buff_head *inputq,
  63                            struct sk_buff_head *xmitq);
  64 void tipc_group_proto_rcv(struct tipc_group *grp, bool *wakeup,
  65                           struct tipc_msg *hdr,
  66                           struct sk_buff_head *inputq,
  67                           struct sk_buff_head *xmitq);
  68 void tipc_group_update_bc_members(struct tipc_group *grp, int len, bool ack);
  69 bool tipc_group_cong(struct tipc_group *grp, u32 dnode, u32 dport,
  70                      int len, struct tipc_member **m);
  71 bool tipc_group_bc_cong(struct tipc_group *grp, int len);
  72 void tipc_group_update_rcv_win(struct tipc_group *grp, int blks, u32 node,
  73                                u32 port, struct sk_buff_head *xmitq);
  74 u16 tipc_group_bc_snd_nxt(struct tipc_group *grp);
  75 void tipc_group_update_member(struct tipc_member *m, int len);
  76 int tipc_group_fill_sock_diag(struct tipc_group *grp, struct sk_buff *skb);
  77 #endif