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diff --git a/include/net/tipc/tipc_port.h b/include/net/tipc/tipc_port.h
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1/*
2 * include/net/tipc/tipc_port.h: Include file for privileged access to TIPC ports
3 *
4 * Copyright (c) 1994-2007, Ericsson AB
5 * Copyright (c) 2005-2008, 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 _NET_TIPC_PORT_H_
38#define _NET_TIPC_PORT_H_
39
40#ifdef __KERNEL__
41
42#include <linux/tipc.h>
43#include <linux/skbuff.h>
44#include <net/tipc/tipc_msg.h>
45
46#define TIPC_FLOW_CONTROL_WIN 512
47
48/**
49 * struct tipc_port - native TIPC port info available to privileged users
50 * @usr_handle: pointer to additional user-defined information about port
51 * @lock: pointer to spinlock for controlling access to port
52 * @connected: non-zero if port is currently connected to a peer port
53 * @conn_type: TIPC type used when connection was established
54 * @conn_instance: TIPC instance used when connection was established
55 * @conn_unacked: number of unacknowledged messages received from peer port
56 * @published: non-zero if port has one or more associated names
57 * @congested: non-zero if cannot send because of link or port congestion
58 * @max_pkt: maximum packet size "hint" used when building messages sent by port
59 * @ref: unique reference to port in TIPC object registry
60 * @phdr: preformatted message header used when sending messages
61 */
62
63struct tipc_port {
64 void *usr_handle;
65 spinlock_t *lock;
66 int connected;
67 u32 conn_type;
68 u32 conn_instance;
69 u32 conn_unacked;
70 int published;
71 u32 congested;
72 u32 max_pkt;
73 u32 ref;
74 struct tipc_msg phdr;
75};
76
77
78struct tipc_port *tipc_createport_raw(void *usr_handle,
79 u32 (*dispatcher)(struct tipc_port *, struct sk_buff *),
80 void (*wakeup)(struct tipc_port *),
81 const u32 importance);
82
83int tipc_reject_msg(struct sk_buff *buf, u32 err);
84
85int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode);
86
87void tipc_acknowledge(u32 port_ref,u32 ack);
88
89struct tipc_port *tipc_get_port(const u32 ref);
90
91/*
92 * The following routines require that the port be locked on entry
93 */
94
95int tipc_disconnect_port(struct tipc_port *tp_ptr);
96
97
98#endif
99
100#endif
101