xref: /linux/net/tipc/node.h (revision cbecf716ca618fd44feda6bd9a64a8179d031fc5)
1 /*
2  * net/tipc/node.h: Include file for TIPC node management routines
3  *
4  * Copyright (c) 2000-2006, 2014-2016, Ericsson AB
5  * Copyright (c) 2005, 2010-2014, Wind River Systems
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_NODE_H
38 #define _TIPC_NODE_H
39 
40 #include "addr.h"
41 #include "net.h"
42 #include "bearer.h"
43 #include "msg.h"
44 
45 /* Optional capabilities supported by this code version
46  */
47 enum {
48 	TIPC_SYN_BIT          = (1),
49 	TIPC_BCAST_SYNCH      = (1 << 1),
50 	TIPC_BCAST_STATE_NACK = (1 << 2),
51 	TIPC_BLOCK_FLOWCTL    = (1 << 3),
52 	TIPC_BCAST_RCAST      = (1 << 4),
53 	TIPC_NODE_ID128       = (1 << 5),
54 	TIPC_LINK_PROTO_SEQNO = (1 << 6),
55 	TIPC_MCAST_RBCTL      = (1 << 7),
56 	TIPC_GAP_ACK_BLOCK    = (1 << 8),
57 	TIPC_TUNNEL_ENHANCED  = (1 << 9),
58 	TIPC_NAGLE            = (1 << 10),
59 	TIPC_NAMED_BCAST      = (1 << 11)
60 };
61 
62 #define TIPC_NODE_CAPABILITIES (TIPC_SYN_BIT           |  \
63 				TIPC_BCAST_SYNCH       |   \
64 				TIPC_BCAST_STATE_NACK  |   \
65 				TIPC_BCAST_RCAST       |   \
66 				TIPC_BLOCK_FLOWCTL     |   \
67 				TIPC_NODE_ID128        |   \
68 				TIPC_LINK_PROTO_SEQNO  |   \
69 				TIPC_MCAST_RBCTL       |   \
70 				TIPC_GAP_ACK_BLOCK     |   \
71 				TIPC_TUNNEL_ENHANCED   |   \
72 				TIPC_NAGLE             |   \
73 				TIPC_NAMED_BCAST)
74 
75 #define INVALID_BEARER_ID -1
76 
77 void tipc_node_stop(struct net *net);
78 bool tipc_node_get_id(struct net *net, u32 addr, u8 *id);
79 u32 tipc_node_get_addr(struct tipc_node *node);
80 char *tipc_node_get_id_str(struct tipc_node *node);
81 void tipc_node_put(struct tipc_node *node);
82 void tipc_node_get(struct tipc_node *node);
83 struct tipc_node *tipc_node_create(struct net *net, u32 addr, u8 *peer_id,
84 				   u16 capabilities, u32 hash_mixes,
85 				   bool preliminary);
86 #ifdef CONFIG_TIPC_CRYPTO
87 struct tipc_crypto *tipc_node_crypto_rx(struct tipc_node *__n);
88 struct tipc_crypto *tipc_node_crypto_rx_by_list(struct list_head *pos);
89 struct tipc_crypto *tipc_node_crypto_rx_by_addr(struct net *net, u32 addr);
90 #endif
91 u32 tipc_node_try_addr(struct net *net, u8 *id, u32 addr);
92 void tipc_node_check_dest(struct net *net, u32 onode, u8 *peer_id128,
93 			  struct tipc_bearer *bearer,
94 			  u16 capabilities, u32 signature, u32 hash_mixes,
95 			  struct tipc_media_addr *maddr,
96 			  bool *respond, bool *dupl_addr);
97 void tipc_node_delete_links(struct net *net, int bearer_id);
98 void tipc_node_apply_property(struct net *net, struct tipc_bearer *b, int prop);
99 int tipc_node_get_linkname(struct net *net, u32 bearer_id, u32 node,
100 			   char *linkname, size_t len);
101 int tipc_node_xmit(struct net *net, struct sk_buff_head *list, u32 dnode,
102 		   int selector);
103 int tipc_node_distr_xmit(struct net *net, struct sk_buff_head *list);
104 int tipc_node_xmit_skb(struct net *net, struct sk_buff *skb, u32 dest,
105 		       u32 selector);
106 void tipc_node_subscribe(struct net *net, struct list_head *subscr, u32 addr);
107 void tipc_node_unsubscribe(struct net *net, struct list_head *subscr, u32 addr);
108 void tipc_node_broadcast(struct net *net, struct sk_buff *skb, int rc_dests);
109 int tipc_node_add_conn(struct net *net, u32 dnode, u32 port, u32 peer_port);
110 void tipc_node_remove_conn(struct net *net, u32 dnode, u32 port);
111 int tipc_node_get_mtu(struct net *net, u32 addr, u32 sel, bool connected);
112 bool tipc_node_is_up(struct net *net, u32 addr);
113 u16 tipc_node_get_capabilities(struct net *net, u32 addr);
114 int tipc_nl_node_dump(struct sk_buff *skb, struct netlink_callback *cb);
115 int tipc_nl_node_dump_link(struct sk_buff *skb, struct netlink_callback *cb);
116 int tipc_nl_node_reset_link_stats(struct sk_buff *skb, struct genl_info *info);
117 int tipc_nl_node_get_link(struct sk_buff *skb, struct genl_info *info);
118 int tipc_nl_node_set_link(struct sk_buff *skb, struct genl_info *info);
119 int tipc_nl_peer_rm(struct sk_buff *skb, struct genl_info *info);
120 
121 int tipc_nl_node_set_monitor(struct sk_buff *skb, struct genl_info *info);
122 int tipc_nl_node_get_monitor(struct sk_buff *skb, struct genl_info *info);
123 int tipc_nl_node_dump_monitor(struct sk_buff *skb, struct netlink_callback *cb);
124 int tipc_nl_node_dump_monitor_peer(struct sk_buff *skb,
125 				   struct netlink_callback *cb);
126 #ifdef CONFIG_TIPC_CRYPTO
127 int tipc_nl_node_set_key(struct sk_buff *skb, struct genl_info *info);
128 int tipc_nl_node_flush_key(struct sk_buff *skb, struct genl_info *info);
129 #endif
130 void tipc_node_pre_cleanup_net(struct net *exit_net);
131 #endif
132