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2 * net/tipc/bcast.h: Include file for TIPC broadcast code
4 * Copyright (c) 2003-2006, 2014-2015, Ericsson AB
5 * Copyright (c) 2005, 2010-2011, Wind River Systems
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
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.
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.
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
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34 * POSSIBILITY OF SUCH DAMAGE.
47 extern const char tipc_bclink_name
[];
49 #define TIPC_METHOD_EXPIRE msecs_to_jiffies(5000)
51 #define BCLINK_MODE_BCAST 0x1
52 #define BCLINK_MODE_RCAST 0x2
53 #define BCLINK_MODE_SEL 0x4
56 struct list_head list
;
62 void tipc_nlist_init(struct tipc_nlist
*nl
, u32 self
);
63 void tipc_nlist_purge(struct tipc_nlist
*nl
);
64 void tipc_nlist_add(struct tipc_nlist
*nl
, u32 node
);
65 void tipc_nlist_del(struct tipc_nlist
*nl
, u32 node
);
67 /* Cookie to be used between socket and broadcast layer
68 * @rcast: replicast (instead of broadcast) was used at previous xmit
69 * @mandatory: broadcast/replicast indication was set by user
70 * @deferredq: defer queue to make message in order
71 * @expires: re-evaluate non-mandatory transmit method if we are past this
73 struct tipc_mc_method
{
76 struct sk_buff_head deferredq
;
77 unsigned long expires
;
80 int tipc_bcast_init(struct net
*net
);
81 void tipc_bcast_stop(struct net
*net
);
82 void tipc_bcast_add_peer(struct net
*net
, struct tipc_link
*l
,
83 struct sk_buff_head
*xmitq
);
84 void tipc_bcast_remove_peer(struct net
*net
, struct tipc_link
*rcv_bcl
);
85 void tipc_bcast_inc_bearer_dst_cnt(struct net
*net
, int bearer_id
);
86 void tipc_bcast_dec_bearer_dst_cnt(struct net
*net
, int bearer_id
);
87 int tipc_bcast_get_mtu(struct net
*net
);
88 void tipc_bcast_toggle_rcast(struct net
*net
, bool supp
);
89 int tipc_mcast_xmit(struct net
*net
, struct sk_buff_head
*pkts
,
90 struct tipc_mc_method
*method
, struct tipc_nlist
*dests
,
92 int tipc_bcast_rcv(struct net
*net
, struct tipc_link
*l
, struct sk_buff
*skb
);
93 void tipc_bcast_ack_rcv(struct net
*net
, struct tipc_link
*l
,
94 struct tipc_msg
*hdr
);
95 int tipc_bcast_sync_rcv(struct net
*net
, struct tipc_link
*l
,
96 struct tipc_msg
*hdr
);
97 int tipc_nl_add_bc_link(struct net
*net
, struct tipc_nl_msg
*msg
);
98 int tipc_nl_bc_link_set(struct net
*net
, struct nlattr
*attrs
[]);
99 int tipc_bclink_reset_stats(struct net
*net
);
101 u32
tipc_bcast_get_broadcast_mode(struct net
*net
);
102 u32
tipc_bcast_get_broadcast_ratio(struct net
*net
);
104 void tipc_mcast_filter_msg(struct net
*net
, struct sk_buff_head
*defq
,
105 struct sk_buff_head
*inputq
);
107 static inline void tipc_bcast_lock(struct net
*net
)
109 spin_lock_bh(&tipc_net(net
)->bclock
);
112 static inline void tipc_bcast_unlock(struct net
*net
)
114 spin_unlock_bh(&tipc_net(net
)->bclock
);
117 static inline struct tipc_link
*tipc_bc_sndlink(struct net
*net
)
119 return tipc_net(net
)->bcl
;