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Diffstat (limited to 'kernel/net/tipc/subscr.h')
| -rw-r--r-- | kernel/net/tipc/subscr.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/kernel/net/tipc/subscr.h b/kernel/net/tipc/subscr.h new file mode 100644 index 000000000..33488bd9f --- /dev/null +++ b/kernel/net/tipc/subscr.h @@ -0,0 +1,83 @@ +/* + * net/tipc/subscr.h: Include file for TIPC network topology service + * + * Copyright (c) 2003-2006, 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_SUBSCRIPTIONS 65535 +#define TIPC_MAX_PUBLICATIONS 65535 + +struct tipc_subscription; +struct tipc_subscriber; + +/** + * struct tipc_subscription - TIPC network topology subscription object + * @subscriber: pointer to its subscriber + * @seq: name sequence associated with subscription + * @net: point to network namespace + * @timeout: duration of subscription (in ms) + * @filter: event filtering to be done for subscription + * @timer: timer governing subscription duration (optional) + * @nameseq_list: adjacent subscriptions in name sequence's subscription list + * @subscription_list: adjacent subscriptions in subscriber's subscription list + * @server_ref: object reference of server port associated with subscription + * @swap: indicates if subscriber uses opposite endianness in its messages + * @evt: template for events generated by subscription + */ +struct tipc_subscription { + struct tipc_subscriber *subscriber; + struct tipc_name_seq seq; + struct net *net; + unsigned long timeout; + u32 filter; + struct timer_list timer; + struct list_head nameseq_list; + struct list_head subscription_list; + int swap; + struct tipc_event evt; +}; + +int tipc_subscr_overlap(struct tipc_subscription *sub, u32 found_lower, + u32 found_upper); +void tipc_subscr_report_overlap(struct tipc_subscription *sub, u32 found_lower, + u32 found_upper, u32 event, u32 port_ref, + u32 node, int must); +int tipc_subscr_start(struct net *net); +void tipc_subscr_stop(struct net *net); + +#endif |