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b97bf3fd PL |
1 | /* |
2 | * net/tipc/bcast.h: Include file for TIPC broadcast code | |
c4307285 | 3 | * |
3c724acd | 4 | * Copyright (c) 2003-2006, 2014-2015, Ericsson AB |
01d83edd | 5 | * Copyright (c) 2005, 2010-2011, Wind River Systems |
b97bf3fd PL |
6 | * All rights reserved. |
7 | * | |
9ea1fd3c | 8 | * Redistribution and use in source and binary forms, with or without |
b97bf3fd PL |
9 | * modification, are permitted provided that the following conditions are met: |
10 | * | |
9ea1fd3c PL |
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. | |
b97bf3fd | 19 | * |
9ea1fd3c PL |
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 | |
b97bf3fd PL |
34 | * POSSIBILITY OF SUCH DAMAGE. |
35 | */ | |
36 | ||
37 | #ifndef _TIPC_BCAST_H | |
38 | #define _TIPC_BCAST_H | |
39 | ||
6beb19a6 | 40 | #include "core.h" |
1da46568 YX |
41 | |
42 | struct tipc_node; | |
6beb19a6 JPM |
43 | struct tipc_msg; |
44 | struct tipc_nl_msg; | |
2ae0b8af JPM |
45 | struct tipc_nlist; |
46 | struct tipc_nitem; | |
5be9c086 | 47 | extern const char tipc_bclink_name[]; |
b97bf3fd | 48 | |
01fd12bb JPM |
49 | #define TIPC_METHOD_EXPIRE msecs_to_jiffies(5000) |
50 | ||
02ec6caf HL |
51 | #define BCLINK_MODE_BCAST 0x1 |
52 | #define BCLINK_MODE_RCAST 0x2 | |
53 | #define BCLINK_MODE_SEL 0x4 | |
54 | ||
2ae0b8af JPM |
55 | struct tipc_nlist { |
56 | struct list_head list; | |
57 | u32 self; | |
58 | u16 remote; | |
59 | bool local; | |
60 | }; | |
61 | ||
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); | |
66 | ||
01fd12bb JPM |
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 | |
c55c8eda | 70 | * @deferredq: defer queue to make message in order |
01fd12bb JPM |
71 | * @expires: re-evaluate non-mandatory transmit method if we are past this |
72 | */ | |
73 | struct tipc_mc_method { | |
74 | bool rcast; | |
75 | bool mandatory; | |
c55c8eda | 76 | struct sk_buff_head deferredq; |
01fd12bb JPM |
77 | unsigned long expires; |
78 | }; | |
79 | ||
6beb19a6 JPM |
80 | int tipc_bcast_init(struct net *net); |
81 | void tipc_bcast_stop(struct net *net); | |
b06b281e | 82 | void tipc_bcast_add_peer(struct net *net, struct tipc_link *l, |
52666986 | 83 | struct sk_buff_head *xmitq); |
b06b281e JPM |
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); | |
959e1781 | 87 | int tipc_bcast_get_mtu(struct net *net); |
01fd12bb | 88 | void tipc_bcast_disable_rcast(struct net *net); |
a853e4c6 | 89 | int tipc_mcast_xmit(struct net *net, struct sk_buff_head *pkts, |
01fd12bb JPM |
90 | struct tipc_mc_method *method, struct tipc_nlist *dests, |
91 | u16 *cong_link_cnt); | |
52666986 | 92 | int tipc_bcast_rcv(struct net *net, struct tipc_link *l, struct sk_buff *skb); |
06bd2b1e JPM |
93 | void tipc_bcast_ack_rcv(struct net *net, struct tipc_link *l, |
94 | struct tipc_msg *hdr); | |
02d11ca2 JPM |
95 | int tipc_bcast_sync_rcv(struct net *net, struct tipc_link *l, |
96 | struct tipc_msg *hdr); | |
1da46568 | 97 | int tipc_nl_add_bc_link(struct net *net, struct tipc_nl_msg *msg); |
670f4f88 | 98 | int tipc_nl_bc_link_set(struct net *net, struct nlattr *attrs[]); |
2af5ae37 | 99 | int tipc_bclink_reset_stats(struct net *net); |
7be57fc6 | 100 | |
02ec6caf HL |
101 | u32 tipc_bcast_get_broadcast_mode(struct net *net); |
102 | u32 tipc_bcast_get_broadcast_ratio(struct net *net); | |
103 | ||
08e046c8 | 104 | void tipc_mcast_filter_msg(struct net *net, struct sk_buff_head *defq, |
c55c8eda HL |
105 | struct sk_buff_head *inputq); |
106 | ||
0043550b JPM |
107 | static inline void tipc_bcast_lock(struct net *net) |
108 | { | |
109 | spin_lock_bh(&tipc_net(net)->bclock); | |
110 | } | |
111 | ||
112 | static inline void tipc_bcast_unlock(struct net *net) | |
113 | { | |
114 | spin_unlock_bh(&tipc_net(net)->bclock); | |
115 | } | |
116 | ||
52666986 JPM |
117 | static inline struct tipc_link *tipc_bc_sndlink(struct net *net) |
118 | { | |
119 | return tipc_net(net)->bcl; | |
120 | } | |
121 | ||
b97bf3fd | 122 | #endif |