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Diffstat (limited to 'include/net/tipc/tipc_port.h')
-rw-r--r-- | include/net/tipc/tipc_port.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/include/net/tipc/tipc_port.h b/include/net/tipc/tipc_port.h new file mode 100644 index 000000000000..333bba6dc522 --- /dev/null +++ b/include/net/tipc/tipc_port.h | |||
@@ -0,0 +1,108 @@ | |||
1 | /* | ||
2 | * include/net/tipc/tipc_port.h: Include file for privileged access to TIPC ports | ||
3 | * | ||
4 | * Copyright (c) 1994-2006, Ericsson AB | ||
5 | * Copyright (c) 2005, 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 | * @ref: unique reference to port in TIPC object registry | ||
59 | * @phdr: preformatted message header used when sending messages | ||
60 | */ | ||
61 | |||
62 | struct tipc_port { | ||
63 | void *usr_handle; | ||
64 | spinlock_t *lock; | ||
65 | int connected; | ||
66 | u32 conn_type; | ||
67 | u32 conn_instance; | ||
68 | u32 conn_unacked; | ||
69 | int published; | ||
70 | u32 congested; | ||
71 | u32 ref; | ||
72 | struct tipc_msg phdr; | ||
73 | }; | ||
74 | |||
75 | |||
76 | /** | ||
77 | * tipc_createport_raw - create a native TIPC port and return it's reference | ||
78 | * | ||
79 | * Note: 'dispatcher' and 'wakeup' deliver a locked port. | ||
80 | */ | ||
81 | |||
82 | u32 tipc_createport_raw(void *usr_handle, | ||
83 | u32 (*dispatcher)(struct tipc_port *, struct sk_buff *), | ||
84 | void (*wakeup)(struct tipc_port *), | ||
85 | const u32 importance); | ||
86 | |||
87 | /* | ||
88 | * tipc_set_msg_option(): port must be locked. | ||
89 | */ | ||
90 | int tipc_set_msg_option(struct tipc_port *tp_ptr, | ||
91 | const char *opt, | ||
92 | const u32 len); | ||
93 | |||
94 | int tipc_reject_msg(struct sk_buff *buf, u32 err); | ||
95 | |||
96 | int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode); | ||
97 | |||
98 | void tipc_acknowledge(u32 port_ref,u32 ack); | ||
99 | |||
100 | struct tipc_port *tipc_get_port(const u32 ref); | ||
101 | |||
102 | void *tipc_get_handle(const u32 ref); | ||
103 | |||
104 | |||
105 | #endif | ||
106 | |||
107 | #endif | ||
108 | |||