1 /* 2 * net/tipc/sysctl.c: sysctl interface to TIPC subsystem 3 * 4 * Copyright (c) 2013, Wind River Systems 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the names of the copyright holders nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * Alternatively, this software may be distributed under the terms of the 20 * GNU General Public License ("GPL") version 2 as published by the Free 21 * Software Foundation. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 24 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #include "core.h" 37 #include "trace.h" 38 39 #include <linux/sysctl.h> 40 41 static int zero; 42 static int one = 1; 43 static struct ctl_table_header *tipc_ctl_hdr; 44 45 static struct ctl_table tipc_table[] = { 46 { 47 .procname = "tipc_rmem", 48 .data = &sysctl_tipc_rmem, 49 .maxlen = sizeof(sysctl_tipc_rmem), 50 .mode = 0644, 51 .proc_handler = proc_dointvec_minmax, 52 .extra1 = &one, 53 }, 54 { 55 .procname = "named_timeout", 56 .data = &sysctl_tipc_named_timeout, 57 .maxlen = sizeof(sysctl_tipc_named_timeout), 58 .mode = 0644, 59 .proc_handler = proc_dointvec_minmax, 60 .extra1 = &zero, 61 }, 62 { 63 .procname = "sk_filter", 64 .data = &sysctl_tipc_sk_filter, 65 .maxlen = sizeof(sysctl_tipc_sk_filter), 66 .mode = 0644, 67 .proc_handler = proc_doulongvec_minmax, 68 }, 69 {} 70 }; 71 72 int tipc_register_sysctl(void) 73 { 74 tipc_ctl_hdr = register_net_sysctl(&init_net, "net/tipc", tipc_table); 75 if (tipc_ctl_hdr == NULL) 76 return -ENOMEM; 77 return 0; 78 } 79 80 void tipc_unregister_sysctl(void) 81 { 82 unregister_net_sysctl_table(tipc_ctl_hdr); 83 } 84