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127 lines
4.6 KiB
127 lines
4.6 KiB
/* |
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* net/tipc/bcast.h: Include file for TIPC broadcast code |
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* |
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* Copyright (c) 2003-2006, 2014-2015, Ericsson AB |
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* Copyright (c) 2005, 2010-2011, Wind River Systems |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the names of the copyright holders nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* Alternatively, this software may be distributed under the terms of the |
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* GNU General Public License ("GPL") version 2 as published by the Free |
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* Software Foundation. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef _TIPC_BCAST_H |
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#define _TIPC_BCAST_H |
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#include "core.h" |
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struct tipc_node; |
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struct tipc_msg; |
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struct tipc_nl_msg; |
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struct tipc_nlist; |
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struct tipc_nitem; |
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extern const char tipc_bclink_name[]; |
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extern unsigned long sysctl_tipc_bc_retruni; |
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#define TIPC_METHOD_EXPIRE msecs_to_jiffies(5000) |
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#define BCLINK_MODE_BCAST 0x1 |
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#define BCLINK_MODE_RCAST 0x2 |
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#define BCLINK_MODE_SEL 0x4 |
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struct tipc_nlist { |
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struct list_head list; |
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u32 self; |
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u16 remote; |
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bool local; |
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}; |
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void tipc_nlist_init(struct tipc_nlist *nl, u32 self); |
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void tipc_nlist_purge(struct tipc_nlist *nl); |
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void tipc_nlist_add(struct tipc_nlist *nl, u32 node); |
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void tipc_nlist_del(struct tipc_nlist *nl, u32 node); |
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/* Cookie to be used between socket and broadcast layer |
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* @rcast: replicast (instead of broadcast) was used at previous xmit |
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* @mandatory: broadcast/replicast indication was set by user |
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* @deferredq: defer queue to make message in order |
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* @expires: re-evaluate non-mandatory transmit method if we are past this |
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*/ |
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struct tipc_mc_method { |
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bool rcast; |
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bool mandatory; |
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struct sk_buff_head deferredq; |
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unsigned long expires; |
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}; |
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int tipc_bcast_init(struct net *net); |
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void tipc_bcast_stop(struct net *net); |
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void tipc_bcast_add_peer(struct net *net, struct tipc_link *l, |
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struct sk_buff_head *xmitq); |
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void tipc_bcast_remove_peer(struct net *net, struct tipc_link *rcv_bcl); |
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void tipc_bcast_inc_bearer_dst_cnt(struct net *net, int bearer_id); |
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void tipc_bcast_dec_bearer_dst_cnt(struct net *net, int bearer_id); |
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int tipc_bcast_get_mtu(struct net *net); |
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void tipc_bcast_toggle_rcast(struct net *net, bool supp); |
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int tipc_mcast_xmit(struct net *net, struct sk_buff_head *pkts, |
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struct tipc_mc_method *method, struct tipc_nlist *dests, |
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u16 *cong_link_cnt); |
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int tipc_bcast_xmit(struct net *net, struct sk_buff_head *pkts, |
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u16 *cong_link_cnt); |
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int tipc_bcast_rcv(struct net *net, struct tipc_link *l, struct sk_buff *skb); |
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void tipc_bcast_ack_rcv(struct net *net, struct tipc_link *l, |
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struct tipc_msg *hdr); |
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int tipc_bcast_sync_rcv(struct net *net, struct tipc_link *l, |
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struct tipc_msg *hdr, |
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struct sk_buff_head *retrq); |
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int tipc_nl_add_bc_link(struct net *net, struct tipc_nl_msg *msg, |
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struct tipc_link *bcl); |
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int tipc_nl_bc_link_set(struct net *net, struct nlattr *attrs[]); |
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int tipc_bclink_reset_stats(struct net *net, struct tipc_link *l); |
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u32 tipc_bcast_get_mode(struct net *net); |
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u32 tipc_bcast_get_broadcast_ratio(struct net *net); |
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void tipc_mcast_filter_msg(struct net *net, struct sk_buff_head *defq, |
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struct sk_buff_head *inputq); |
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static inline void tipc_bcast_lock(struct net *net) |
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{ |
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spin_lock_bh(&tipc_net(net)->bclock); |
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} |
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static inline void tipc_bcast_unlock(struct net *net) |
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{ |
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spin_unlock_bh(&tipc_net(net)->bclock); |
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} |
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static inline struct tipc_link *tipc_bc_sndlink(struct net *net) |
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{ |
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return tipc_net(net)->bcl; |
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} |
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#endif
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