forked from luck/tmp_suning_uos_patched
da0a75e86a
Since we now have removed struct tipc_subscriber from the code, and only struct tipc_subscription remains, there is no longer need for long and awkward prefixes to distinguish between their pertaining functions. We now change all tipc_subscrp_* prefixes to tipc_sub_*. This is a purely cosmetic change. Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
109 lines
4.1 KiB
C
109 lines
4.1 KiB
C
/*
|
|
* net/tipc/subscr.h: Include file for TIPC network topology service
|
|
*
|
|
* Copyright (c) 2003-2017, Ericsson AB
|
|
* Copyright (c) 2005-2007, 2012-2013, 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 _TIPC_SUBSCR_H
|
|
#define _TIPC_SUBSCR_H
|
|
|
|
#include "server.h"
|
|
|
|
#define TIPC_MAX_SUBSCR 65535
|
|
#define TIPC_MAX_PUBLICATIONS 65535
|
|
|
|
struct tipc_subscription;
|
|
struct tipc_conn;
|
|
|
|
/**
|
|
* struct tipc_subscription - TIPC network topology subscription object
|
|
* @subscriber: pointer to its subscriber
|
|
* @seq: name sequence associated with subscription
|
|
* @timer: timer governing subscription duration (optional)
|
|
* @nameseq_list: adjacent subscriptions in name sequence's subscription list
|
|
* @sub_list: adjacent subscriptions in subscriber's subscription list
|
|
* @evt: template for events generated by subscription
|
|
*/
|
|
struct tipc_subscription {
|
|
struct kref kref;
|
|
struct tipc_server *server;
|
|
struct timer_list timer;
|
|
struct list_head nameseq_list;
|
|
struct list_head sub_list;
|
|
struct tipc_event evt;
|
|
int conid;
|
|
bool inactive;
|
|
spinlock_t lock; /* serialize up/down and timer events */
|
|
};
|
|
|
|
struct tipc_subscription *tipc_sub_subscribe(struct tipc_server *srv,
|
|
struct tipc_subscr *s,
|
|
int conid);
|
|
void tipc_sub_unsubscribe(struct tipc_subscription *sub);
|
|
|
|
int tipc_sub_check_overlap(struct tipc_name_seq *seq, u32 found_lower,
|
|
u32 found_upper);
|
|
void tipc_sub_report_overlap(struct tipc_subscription *sub,
|
|
u32 found_lower, u32 found_upper,
|
|
u32 event, u32 port, u32 node,
|
|
u32 scope, int must);
|
|
int tipc_topsrv_start(struct net *net);
|
|
void tipc_topsrv_stop(struct net *net);
|
|
|
|
void tipc_sub_put(struct tipc_subscription *subscription);
|
|
void tipc_sub_get(struct tipc_subscription *subscription);
|
|
|
|
#define TIPC_FILTER_MASK (TIPC_SUB_PORTS | TIPC_SUB_SERVICE | TIPC_SUB_CANCEL)
|
|
|
|
/* tipc_sub_read - return field_ of struct sub_ in host endian format
|
|
*/
|
|
#define tipc_sub_read(sub_, field_) \
|
|
({ \
|
|
struct tipc_subscr *sub__ = sub_; \
|
|
u32 val__ = (sub__)->field_; \
|
|
int swap_ = !((sub__)->filter & TIPC_FILTER_MASK); \
|
|
(swap_ ? swab32(val__) : val__); \
|
|
})
|
|
|
|
/* tipc_evt_write - write val_ to field_ of struct evt_ in user endian format
|
|
*/
|
|
#define tipc_evt_write(evt_, field_, val_) \
|
|
({ \
|
|
struct tipc_event *evt__ = evt_; \
|
|
u32 val__ = val_; \
|
|
int swap_ = !((evt__)->s.filter & (TIPC_FILTER_MASK)); \
|
|
(evt__)->field_ = swap_ ? swab32(val__) : val__; \
|
|
})
|
|
|
|
#endif
|