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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