104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
/*
|
|
* include/net/tipc/tipc_port.h: Include file for privileged access to TIPC ports
|
|
*
|
|
* Copyright (c) 1994-2007, Ericsson AB
|
|
* Copyright (c) 2005-2008, Wind River Systems
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the names of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _NET_TIPC_PORT_H_
|
|
#define _NET_TIPC_PORT_H_
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/tipc.h>
|
|
#include <linux/skbuff.h>
|
|
#include <net/tipc/tipc_msg.h>
|
|
|
|
#define TIPC_FLOW_CONTROL_WIN 512
|
|
|
|
/**
|
|
* struct tipc_port - native TIPC port info available to privileged users
|
|
* @usr_handle: pointer to additional user-defined information about port
|
|
* @lock: pointer to spinlock for controlling access to port
|
|
* @connected: non-zero if port is currently connected to a peer port
|
|
* @conn_type: TIPC type used when connection was established
|
|
* @conn_instance: TIPC instance used when connection was established
|
|
* @conn_unacked: number of unacknowledged messages received from peer port
|
|
* @published: non-zero if port has one or more associated names
|
|
* @congested: non-zero if cannot send because of link or port congestion
|
|
* @max_pkt: maximum packet size "hint" used when building messages sent by port
|
|
* @ref: unique reference to port in TIPC object registry
|
|
* @phdr: preformatted message header used when sending messages
|
|
*/
|
|
|
|
struct tipc_port {
|
|
void *usr_handle;
|
|
spinlock_t *lock;
|
|
int connected;
|
|
u32 conn_type;
|
|
u32 conn_instance;
|
|
u32 conn_unacked;
|
|
int published;
|
|
u32 congested;
|
|
u32 max_pkt;
|
|
u32 ref;
|
|
struct tipc_msg phdr;
|
|
};
|
|
|
|
|
|
struct tipc_port *tipc_createport_raw(void *usr_handle,
|
|
u32 (*dispatcher)(struct tipc_port *, struct sk_buff *),
|
|
void (*wakeup)(struct tipc_port *),
|
|
const u32 importance);
|
|
|
|
int tipc_reject_msg(struct sk_buff *buf, u32 err);
|
|
|
|
int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode);
|
|
|
|
void tipc_acknowledge(u32 port_ref,u32 ack);
|
|
|
|
struct tipc_port *tipc_get_port(const u32 ref);
|
|
|
|
void *tipc_get_handle(const u32 ref);
|
|
|
|
/*
|
|
* The following routines require that the port be locked on entry
|
|
*/
|
|
|
|
int tipc_disconnect_port(struct tipc_port *tp_ptr);
|
|
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|