net/tipc/core.h

   1 /*
   2  * net/tipc/core.h: Include file for TIPC global declarations
   3  *
   4  * Copyright (c) 2005-2006, 2013 Ericsson AB
   5  * Copyright (c) 2005-2007, 2010-2013, 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_CORE_H
  38 #define _TIPC_CORE_H
  39
  40 #include <linux/tipc.h>
  41 #include <linux/tipc_config.h>
  42 #include <linux/tipc_netlink.h>
  43 #include <linux/types.h>
  44 #include <linux/kernel.h>
  45 #include <linux/errno.h>
  46 #include <linux/mm.h>
  47 #include <linux/timer.h>
  48 #include <linux/string.h>
  49 #include <linux/uaccess.h>
  50 #include <linux/interrupt.h>
  51 #include <linux/atomic.h>
  52 #include <asm/hardirq.h>
  53 #include <linux/netdevice.h>
  54 #include <linux/in.h>
  55 #include <linux/list.h>
  56 #include <linux/slab.h>
  57 #include <linux/vmalloc.h>
  58 #include <linux/rtnetlink.h>
  59 #include <linux/etherdevice.h>
  60 #include <net/netns/generic.h>
  61 #include <linux/rhashtable.h>
  62
  63 #include "node.h"
  64 #include "bearer.h"
  65 #include "bcast.h"
  66 #include "netlink.h"
  67 #include "link.h"
  68 #include "node.h"
  69 #include "msg.h"
  70
  71 #define TIPC_MOD_VER "2.0.0"
  72
  73 extern int tipc_net_id __read_mostly;
  74 extern int sysctl_tipc_rmem[3] __read_mostly;
  75 extern int sysctl_tipc_named_timeout __read_mostly;
  76
  77 struct tipc_net {
  78         u32 own_addr;
  79         int net_id;
  80         int random;
  81
  82         /* Node table and node list */
  83         spinlock_t node_list_lock;
  84         struct hlist_head node_htable[NODE_HTABLE_SIZE];
  85         struct list_head node_list;
  86         u32 num_nodes;
  87         u32 num_links;
  88
  89         /* Bearer list */
  90         struct tipc_bearer __rcu *bearer_list[MAX_BEARERS + 1];
  91
  92         /* Broadcast link */
  93         struct tipc_bcbearer *bcbearer;
  94         struct tipc_bclink *bclink;
  95         struct tipc_link *bcl;
  96
  97         /* Socket hash table */
  98         struct rhashtable sk_rht;
  99
 100         /* Name table */
 101         spinlock_t nametbl_lock;
 102         struct name_table *nametbl;
 103
 104         /* Topology subscription server */
 105         struct tipc_server *topsrv;
 106         atomic_t subscription_count;
 107 };
 108
 109 #ifdef CONFIG_SYSCTL
 110 int tipc_register_sysctl(void);
 111 void tipc_unregister_sysctl(void);
 112 #else
 113 #define tipc_register_sysctl() 0
 114 #define tipc_unregister_sysctl()
 115 #endif
 116 #endif