1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License as published by 4 * the Free Software Foundation; either version 2 of the License, or 5 * (at your option) any later version. 6 * 7 * Copyright (C) 1996 Mike Shaver (shaver@zeroknowledge.com) 8 */ 9 #include <linux/mm.h> 10 #include <linux/sysctl.h> 11 #include <linux/init.h> 12 #include <net/ax25.h> 13 #include <net/netrom.h> 14 15 /* 16 * Values taken from NET/ROM documentation. 17 */ 18 static int min_quality[] = {0}, max_quality[] = {255}; 19 static int min_obs[] = {0}, max_obs[] = {255}; 20 static int min_ttl[] = {0}, max_ttl[] = {255}; 21 static int min_t1[] = {5 * HZ}; 22 static int max_t1[] = {600 * HZ}; 23 static int min_n2[] = {2}, max_n2[] = {127}; 24 static int min_t2[] = {1 * HZ}; 25 static int max_t2[] = {60 * HZ}; 26 static int min_t4[] = {1 * HZ}; 27 static int max_t4[] = {1000 * HZ}; 28 static int min_window[] = {1}, max_window[] = {127}; 29 static int min_idle[] = {0 * HZ}; 30 static int max_idle[] = {65535 * HZ}; 31 static int min_route[] = {0}, max_route[] = {1}; 32 static int min_fails[] = {1}, max_fails[] = {10}; 33 static int min_reset[] = {0}, max_reset[] = {1}; 34 35 static struct ctl_table_header *nr_table_header; 36 37 static ctl_table nr_table[] = { 38 { 39 .ctl_name = NET_NETROM_DEFAULT_PATH_QUALITY, 40 .procname = "default_path_quality", 41 .data = &sysctl_netrom_default_path_quality, 42 .maxlen = sizeof(int), 43 .mode = 0644, 44 .proc_handler = proc_dointvec_minmax, 45 .strategy = sysctl_intvec, 46 .extra1 = &min_quality, 47 .extra2 = &max_quality 48 }, 49 { 50 .ctl_name = NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER, 51 .procname = "obsolescence_count_initialiser", 52 .data = &sysctl_netrom_obsolescence_count_initialiser, 53 .maxlen = sizeof(int), 54 .mode = 0644, 55 .proc_handler = proc_dointvec_minmax, 56 .strategy = sysctl_intvec, 57 .extra1 = &min_obs, 58 .extra2 = &max_obs 59 }, 60 { 61 .ctl_name = NET_NETROM_NETWORK_TTL_INITIALISER, 62 .procname = "network_ttl_initialiser", 63 .data = &sysctl_netrom_network_ttl_initialiser, 64 .maxlen = sizeof(int), 65 .mode = 0644, 66 .proc_handler = proc_dointvec_minmax, 67 .strategy = sysctl_intvec, 68 .extra1 = &min_ttl, 69 .extra2 = &max_ttl 70 }, 71 { 72 .ctl_name = NET_NETROM_TRANSPORT_TIMEOUT, 73 .procname = "transport_timeout", 74 .data = &sysctl_netrom_transport_timeout, 75 .maxlen = sizeof(int), 76 .mode = 0644, 77 .proc_handler = proc_dointvec_minmax, 78 .strategy = sysctl_intvec, 79 .extra1 = &min_t1, 80 .extra2 = &max_t1 81 }, 82 { 83 .ctl_name = NET_NETROM_TRANSPORT_MAXIMUM_TRIES, 84 .procname = "transport_maximum_tries", 85 .data = &sysctl_netrom_transport_maximum_tries, 86 .maxlen = sizeof(int), 87 .mode = 0644, 88 .proc_handler = proc_dointvec_minmax, 89 .strategy = sysctl_intvec, 90 .extra1 = &min_n2, 91 .extra2 = &max_n2 92 }, 93 { 94 .ctl_name = NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY, 95 .procname = "transport_acknowledge_delay", 96 .data = &sysctl_netrom_transport_acknowledge_delay, 97 .maxlen = sizeof(int), 98 .mode = 0644, 99 .proc_handler = proc_dointvec_minmax, 100 .strategy = sysctl_intvec, 101 .extra1 = &min_t2, 102 .extra2 = &max_t2 103 }, 104 { 105 .ctl_name = NET_NETROM_TRANSPORT_BUSY_DELAY, 106 .procname = "transport_busy_delay", 107 .data = &sysctl_netrom_transport_busy_delay, 108 .maxlen = sizeof(int), 109 .mode = 0644, 110 .proc_handler = proc_dointvec_minmax, 111 .strategy = sysctl_intvec, 112 .extra1 = &min_t4, 113 .extra2 = &max_t4 114 }, 115 { 116 .ctl_name = NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE, 117 .procname = "transport_requested_window_size", 118 .data = &sysctl_netrom_transport_requested_window_size, 119 .maxlen = sizeof(int), 120 .mode = 0644, 121 .proc_handler = proc_dointvec_minmax, 122 .strategy = sysctl_intvec, 123 .extra1 = &min_window, 124 .extra2 = &max_window 125 }, 126 { 127 .ctl_name = NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT, 128 .procname = "transport_no_activity_timeout", 129 .data = &sysctl_netrom_transport_no_activity_timeout, 130 .maxlen = sizeof(int), 131 .mode = 0644, 132 .proc_handler = proc_dointvec_minmax, 133 .strategy = sysctl_intvec, 134 .extra1 = &min_idle, 135 .extra2 = &max_idle 136 }, 137 { 138 .ctl_name = NET_NETROM_ROUTING_CONTROL, 139 .procname = "routing_control", 140 .data = &sysctl_netrom_routing_control, 141 .maxlen = sizeof(int), 142 .mode = 0644, 143 .proc_handler = proc_dointvec_minmax, 144 .strategy = sysctl_intvec, 145 .extra1 = &min_route, 146 .extra2 = &max_route 147 }, 148 { 149 .ctl_name = NET_NETROM_LINK_FAILS_COUNT, 150 .procname = "link_fails_count", 151 .data = &sysctl_netrom_link_fails_count, 152 .maxlen = sizeof(int), 153 .mode = 0644, 154 .proc_handler = proc_dointvec_minmax, 155 .strategy = sysctl_intvec, 156 .extra1 = &min_fails, 157 .extra2 = &max_fails 158 }, 159 { 160 .ctl_name = NET_NETROM_RESET, 161 .procname = "reset", 162 .data = &sysctl_netrom_reset_circuit, 163 .maxlen = sizeof(int), 164 .mode = 0644, 165 .proc_handler = proc_dointvec_minmax, 166 .strategy = sysctl_intvec, 167 .extra1 = &min_reset, 168 .extra2 = &max_reset 169 }, 170 { .ctl_name = 0 } 171 }; 172 173 static struct ctl_path nr_path[] = { 174 { .procname = "net", .ctl_name = CTL_NET, }, 175 { .procname = "netrom", .ctl_name = NET_NETROM, }, 176 { } 177 }; 178 179 void __init nr_register_sysctl(void) 180 { 181 nr_table_header = register_sysctl_paths(nr_path, nr_table); 182 } 183 184 void nr_unregister_sysctl(void) 185 { 186 unregister_sysctl_table(nr_table_header); 187 } 188