| /* |
| * net/tipc/core.c: TIPC module code |
| * |
| * Copyright (c) 2003-2006, 2013, Ericsson AB |
| * Copyright (c) 2005-2006, 2010-2013, 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. |
| */ |
| |
| #include "core.h" |
| #include "name_table.h" |
| #include "subscr.h" |
| #include "bearer.h" |
| #include "net.h" |
| #include "socket.h" |
| #include "bcast.h" |
| #include "node.h" |
| |
| #include <linux/module.h> |
| |
| /* configurable TIPC parameters */ |
| unsigned int tipc_net_id __read_mostly; |
| int sysctl_tipc_rmem[3] __read_mostly; /* min/default/max */ |
| |
| static int __net_init tipc_init_net(struct net *net) |
| { |
| struct tipc_net *tn = net_generic(net, tipc_net_id); |
| int err; |
| |
| tn->net_id = 4711; |
| tn->node_addr = 0; |
| tn->trial_addr = 0; |
| tn->addr_trial_end = 0; |
| tn->capabilities = TIPC_NODE_CAPABILITIES; |
| INIT_WORK(&tn->final_work.work, tipc_net_finalize_work); |
| memset(tn->node_id, 0, sizeof(tn->node_id)); |
| memset(tn->node_id_string, 0, sizeof(tn->node_id_string)); |
| tn->mon_threshold = TIPC_DEF_MON_THRESHOLD; |
| get_random_bytes(&tn->random, sizeof(int)); |
| INIT_LIST_HEAD(&tn->node_list); |
| spin_lock_init(&tn->node_list_lock); |
| |
| err = tipc_sk_rht_init(net); |
| if (err) |
| goto out_sk_rht; |
| |
| err = tipc_nametbl_init(net); |
| if (err) |
| goto out_nametbl; |
| |
| INIT_LIST_HEAD(&tn->dist_queue); |
| |
| err = tipc_bcast_init(net); |
| if (err) |
| goto out_bclink; |
| |
| err = tipc_attach_loopback(net); |
| if (err) |
| goto out_bclink; |
| |
| return 0; |
| |
| out_bclink: |
| tipc_nametbl_stop(net); |
| out_nametbl: |
| tipc_sk_rht_destroy(net); |
| out_sk_rht: |
| return err; |
| } |
| |
| static void __net_exit tipc_exit_net(struct net *net) |
| { |
| struct tipc_net *tn = tipc_net(net); |
| |
| tipc_detach_loopback(net); |
| /* Make sure the tipc_net_finalize_work() finished */ |
| cancel_work_sync(&tn->final_work.work); |
| tipc_net_stop(net); |
| |
| tipc_bcast_stop(net); |
| tipc_nametbl_stop(net); |
| tipc_sk_rht_destroy(net); |
| } |
| |
| static struct pernet_operations tipc_net_ops = { |
| .init = tipc_init_net, |
| .exit = tipc_exit_net, |
| .id = &tipc_net_id, |
| .size = sizeof(struct tipc_net), |
| }; |
| |
| static struct pernet_operations tipc_topsrv_net_ops = { |
| .init = tipc_topsrv_init_net, |
| .exit = tipc_topsrv_exit_net, |
| }; |
| |
| static int __init tipc_init(void) |
| { |
| int err; |
| |
| pr_info("Activated (version " TIPC_MOD_VER ")\n"); |
| |
| sysctl_tipc_rmem[0] = RCVBUF_MIN; |
| sysctl_tipc_rmem[1] = RCVBUF_DEF; |
| sysctl_tipc_rmem[2] = RCVBUF_MAX; |
| |
| err = tipc_register_sysctl(); |
| if (err) |
| goto out_sysctl; |
| |
| err = register_pernet_device(&tipc_net_ops); |
| if (err) |
| goto out_pernet; |
| |
| err = tipc_socket_init(); |
| if (err) |
| goto out_socket; |
| |
| err = register_pernet_device(&tipc_topsrv_net_ops); |
| if (err) |
| goto out_pernet_topsrv; |
| |
| err = tipc_bearer_setup(); |
| if (err) |
| goto out_bearer; |
| |
| err = tipc_netlink_start(); |
| if (err) |
| goto out_netlink; |
| |
| err = tipc_netlink_compat_start(); |
| if (err) |
| goto out_netlink_compat; |
| |
| pr_info("Started in single node mode\n"); |
| return 0; |
| |
| out_netlink_compat: |
| tipc_netlink_stop(); |
| out_netlink: |
| tipc_bearer_cleanup(); |
| out_bearer: |
| unregister_pernet_device(&tipc_topsrv_net_ops); |
| out_pernet_topsrv: |
| tipc_socket_stop(); |
| out_socket: |
| unregister_pernet_device(&tipc_net_ops); |
| out_pernet: |
| tipc_unregister_sysctl(); |
| out_sysctl: |
| pr_err("Unable to start in single node mode\n"); |
| return err; |
| } |
| |
| static void __exit tipc_exit(void) |
| { |
| tipc_netlink_compat_stop(); |
| tipc_netlink_stop(); |
| tipc_bearer_cleanup(); |
| unregister_pernet_device(&tipc_topsrv_net_ops); |
| tipc_socket_stop(); |
| unregister_pernet_device(&tipc_net_ops); |
| tipc_unregister_sysctl(); |
| |
| pr_info("Deactivated\n"); |
| } |
| |
| module_init(tipc_init); |
| module_exit(tipc_exit); |
| |
| MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication"); |
| MODULE_LICENSE("Dual BSD/GPL"); |
| MODULE_VERSION(TIPC_MOD_VER); |