linux/net/tipc/subscr.c

/*
 * net/tipc/subscr.c: TIPC network topology service
 *
 * Copyright (c) 2000-2017, Ericsson AB
 * Copyright (c) 2005-2007, 2010-2013, Wind River Systems
 * Copyright (c) 2020-2021, Red Hat Inc
 * 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.
 */

#include "core.h"
#include "name_table.h"
#include "subscr.h"

static void tipc_sub_send_event(struct tipc_subscription *sub,
				struct publication *p,
				u32 event)
{ … }

/**
 * tipc_sub_check_overlap - test for subscription overlap with the given values
 * @subscribed: the service range subscribed for
 * @found: the service range we are checking for match
 *
 * Returns true if there is overlap, otherwise false.
 */
static bool tipc_sub_check_overlap(struct tipc_service_range *subscribed,
				   struct tipc_service_range *found)
{ … }

void tipc_sub_report_overlap(struct tipc_subscription *sub,
			     struct publication *p,
			     u32 event, bool must)
{ … }

static void tipc_sub_timeout(struct timer_list *t)
{ … }

static void tipc_sub_kref_release(struct kref *kref)
{ … }

void tipc_sub_put(struct tipc_subscription *subscription)
{ … }

void tipc_sub_get(struct tipc_subscription *subscription)
{ … }

struct tipc_subscription *tipc_sub_subscribe(struct net *net,
					     struct tipc_subscr *s,
					     int conid)
{ … }

void tipc_sub_unsubscribe(struct tipc_subscription *sub)
{ … }