1 /* 1
2 * net/tipc/bcast.h: Include file for TIPC bro
3 *
4 * Copyright (c) 2003-2006, 2014-2015, Ericsso
5 * Copyright (c) 2005, 2010-2011, Wind River S
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary
9 * modification, are permitted provided that t
10 *
11 * 1. Redistributions of source code must reta
12 * notice, this list of conditions and the
13 * 2. Redistributions in binary form must repr
14 * notice, this list of conditions and the
15 * documentation and/or other materials pro
16 * 3. Neither the names of the copyright holde
17 * contributors may be used to endorse or p
18 * this software without specific prior wri
19 *
20 * Alternatively, this software may be distrib
21 * GNU General Public License ("GPL") version
22 * Software Foundation.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCL
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND F
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYR
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT L
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THE
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUD
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS S
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37 #ifndef _TIPC_BCAST_H
38 #define _TIPC_BCAST_H
39
40 #include "core.h"
41
42 struct tipc_node;
43 struct tipc_msg;
44 struct tipc_nl_msg;
45 struct tipc_nlist;
46 struct tipc_nitem;
47 extern const char tipc_bclink_name[];
48 extern unsigned long sysctl_tipc_bc_retruni;
49
50 #define TIPC_METHOD_EXPIRE msecs_to_jiffies(50
51
52 #define BCLINK_MODE_BCAST 0x1
53 #define BCLINK_MODE_RCAST 0x2
54 #define BCLINK_MODE_SEL 0x4
55
56 struct tipc_nlist {
57 struct list_head list;
58 u32 self;
59 u16 remote;
60 bool local;
61 };
62
63 void tipc_nlist_init(struct tipc_nlist *nl, u3
64 void tipc_nlist_purge(struct tipc_nlist *nl);
65 void tipc_nlist_add(struct tipc_nlist *nl, u32
66 void tipc_nlist_del(struct tipc_nlist *nl, u32
67
68 /* Cookie to be used between socket and broadc
69 * @rcast: replicast (instead of broadcast) wa
70 * @mandatory: broadcast/replicast indication
71 * @deferredq: defer queue to make message in
72 * @expires: re-evaluate non-mandatory transmi
73 */
74 struct tipc_mc_method {
75 bool rcast;
76 bool mandatory;
77 struct sk_buff_head deferredq;
78 unsigned long expires;
79 };
80
81 int tipc_bcast_init(struct net *net);
82 void tipc_bcast_stop(struct net *net);
83 void tipc_bcast_add_peer(struct net *net, stru
84 struct sk_buff_head *
85 void tipc_bcast_remove_peer(struct net *net, s
86 void tipc_bcast_inc_bearer_dst_cnt(struct net
87 void tipc_bcast_dec_bearer_dst_cnt(struct net
88 int tipc_bcast_get_mtu(struct net *net);
89 void tipc_bcast_toggle_rcast(struct net *net,
90 int tipc_mcast_xmit(struct net *net, struct sk
91 struct tipc_mc_method *met
92 u16 *cong_link_cnt);
93 int tipc_bcast_xmit(struct net *net, struct sk
94 u16 *cong_link_cnt);
95 int tipc_bcast_rcv(struct net *net, struct tip
96 void tipc_bcast_ack_rcv(struct net *net, struc
97 struct tipc_msg *hdr);
98 int tipc_bcast_sync_rcv(struct net *net, struc
99 struct tipc_msg *hdr,
100 struct sk_buff_head *r
101 int tipc_nl_add_bc_link(struct net *net, struc
102 struct tipc_link *bcl)
103 int tipc_nl_bc_link_set(struct net *net, struc
104 int tipc_bclink_reset_stats(struct net *net, s
105
106 u32 tipc_bcast_get_mode(struct net *net);
107 u32 tipc_bcast_get_broadcast_ratio(struct net
108
109 void tipc_mcast_filter_msg(struct net *net, st
110 struct sk_buff_head
111
112 static inline void tipc_bcast_lock(struct net
113 {
114 spin_lock_bh(&tipc_net(net)->bclock);
115 }
116
117 static inline void tipc_bcast_unlock(struct ne
118 {
119 spin_unlock_bh(&tipc_net(net)->bclock)
120 }
121
122 static inline struct tipc_link *tipc_bc_sndlin
123 {
124 return tipc_net(net)->bcl;
125 }
126
127 #endif
128
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