| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame] | 1 | /* |
| 2 | * net/tipc/subscr.h: Include file for TIPC network topology service |
| 3 | * |
| 4 | * Copyright (c) 2003-2006, Ericsson AB |
| 5 | * Copyright (c) 2005-2007, 2012-2013, 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 _TIPC_SUBSCR_H |
| 38 | #define _TIPC_SUBSCR_H |
| 39 | |
| 40 | #include "server.h" |
| 41 | |
| 42 | #define TIPC_MAX_SUBSCRIPTIONS 65535 |
| 43 | #define TIPC_MAX_PUBLICATIONS 65535 |
| 44 | |
| 45 | struct tipc_subscription; |
| 46 | struct tipc_subscriber; |
| 47 | |
| 48 | /** |
| 49 | * struct tipc_subscription - TIPC network topology subscription object |
| 50 | * @subscriber: pointer to its subscriber |
| 51 | * @seq: name sequence associated with subscription |
| 52 | * @net: point to network namespace |
| 53 | * @timeout: duration of subscription (in ms) |
| 54 | * @filter: event filtering to be done for subscription |
| 55 | * @timer: timer governing subscription duration (optional) |
| 56 | * @nameseq_list: adjacent subscriptions in name sequence's subscription list |
| 57 | * @subscrp_list: adjacent subscriptions in subscriber's subscription list |
| 58 | * @server_ref: object reference of server port associated with subscription |
| 59 | * @swap: indicates if subscriber uses opposite endianness in its messages |
| 60 | * @evt: template for events generated by subscription |
| 61 | */ |
| 62 | struct tipc_subscription { |
| 63 | struct tipc_subscriber *subscriber; |
| 64 | struct tipc_name_seq seq; |
| 65 | struct net *net; |
| 66 | unsigned long timeout; |
| 67 | u32 filter; |
| 68 | struct timer_list timer; |
| 69 | struct list_head nameseq_list; |
| 70 | struct list_head subscrp_list; |
| 71 | int swap; |
| 72 | struct tipc_event evt; |
| 73 | }; |
| 74 | |
| 75 | int tipc_subscrp_check_overlap(struct tipc_subscription *sub, u32 found_lower, |
| 76 | u32 found_upper); |
| 77 | void tipc_subscrp_report_overlap(struct tipc_subscription *sub, |
| 78 | u32 found_lower, u32 found_upper, u32 event, |
| 79 | u32 port_ref, u32 node, int must); |
| 80 | int tipc_topsrv_start(struct net *net); |
| 81 | void tipc_topsrv_stop(struct net *net); |
| 82 | |
| 83 | #endif |